CN111389878A

CN111389878A - Domestic waste solid zero release processing system

Info

Publication number: CN111389878A
Application number: CN202010304231.7A
Authority: CN
Inventors: 黄优雅
Original assignee: Jinsheng Oasis Shenzhen Environmental Protection Technology Co ltd
Current assignee: Jinsheng Oasis Shenzhen Environmental Protection Technology Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-07-10

Abstract

The invention discloses a domestic garbage solid zero-emission treatment system, which adopts a comprehensive treatment mode of combining domestic garbage comprehensive separation, organic matter composting, a plastic granulation system, an oxygen-free carbonization system, a construction garbage crushing and separating system, a waste soil brick making system, a sintering brick making system, a tar treatment system and a sewage treatment system. After sorting the primary garbage, recycling components such as iron and metal which can be recycled, and enabling the plastic to enter a plastic granulation system; pretreating the material with higher organic content, and then feeding the pretreated material into a composting and screening system; combustible materials in the garbage enter an oxygen-free carbonization system; the tar generated by carbonization enters a tar treatment system; carbon slag, residue soil, masonry tile blocks, treated wastewater generated in the garbage treatment process and the like enter a sintered brick system to produce building material products; the heat energy generated when the coal of the kiln is bonded provides heat energy for carbonization. Therefore, in the comprehensive treatment plant, all components in the garbage reach the best use, and zero landfill is realized.

Description

Domestic waste solid zero release processing system

Technical Field

The invention relates to a household garbage treatment technology, in particular to a household garbage solid zero-discharge treatment system.

Background

The rapid development of production improves the living standard of residents, the commodity consumption is rapidly increased, the discharge amount of garbage is increased, and if the garbage is freely discharged, managed and treated, the garbage can cause public hazard, destroy the ecological environment and endanger the health of people.

Municipal waste is a mixture of solid waste in cities, including industrial waste, construction waste and household waste.

The urban domestic garbage treatment modes widely adopted at home and abroad mainly comprise sanitary landfill, high-temperature composting, incineration and the like, and the proportion of the three main garbage treatment modes is different according to different factors such as geographical environment, garbage components, economic development level and the like. Because the urban garbage has complex components and is influenced by factors such as economic development level, structural capacity, natural conditions, traditional habits and the like, the treatment of the urban garbage abroad is generally different according to the national conditions, different treatment modes are adopted in all regions in one country, and a uniform mode is difficult to exist.

Wherein, the sanitary landfill wastes a large amount of land resources and is easy to cause pollution to underground water sources and the like; the volume of the garbage can be reduced by 50-95% by burning for power generation, but the investment is large, the cost is high, harmful substances such as dioxin, mercury and the like can be released, the residual slag and dust are toxic and harmful, and a large amount of recyclable resources are burned; the composting period is long, and organic matters and inorganic matters can be recycled only by split charging.

Therefore, a comprehensive garbage disposal system is required to solve the above problems.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a domestic garbage solid zero-emission treatment system, which is designed for reusing domestic garbage, sorting the domestic garbage by technical means to prepare products such as environment-friendly bricks, fertilizers, oil products and the like, and performing environment-friendly treatment on pollutants in the preparation process without affecting the environment.

In order to solve the technical problem, the invention is realized by the following scheme: the invention relates to a domestic garbage solid zero-emission treatment system, which comprises:

the feeding system is provided with a feeding machine and a movable travelling crane grab bucket device, the travelling crane grab bucket device is used for feeding the raw garbage in the garbage storage pit to the feeding machine, the feeding machine is used for feeding the raw garbage to the pre-sorting system, the garbage storage pit is used for receiving the stacked and weighed household garbage, and the bottom of the garbage storage pit is provided with a leachate system;

the pre-sorting system receives the primary garbage of the feeder and pre-sorts the primary garbage through the particle size screening equipment, and the pre-sorted garbage with different particle sizes is respectively conveyed to corresponding treatment equipment which comprises large garbage, medium garbage and small particle size garbage;

the large garbage treatment system is used for receiving the large garbage sorted by the pre-sorting system, and is provided with a large garbage conveying line, an identification device which has large garbage identification properties and is arranged above the large garbage conveying line, and a mechanical arm sorting device for sorting the identified large garbage with different properties, wherein the identification device identifies the properties of the large garbage as inorganic matters and first combustible matters, the inorganic matters are sorted and then conveyed to the brick burning system, and the first combustible matters are sorted and then conveyed to the oxygen-free carbonization system;

the medium garbage treatment system is used for receiving the medium garbage sorted by the pre-sorting system and is provided with a medium garbage conveying line, a first magnetic separator which is provided with magnetically attractable metal objects remained in the medium garbage and is arranged on one side of the medium garbage conveying line, and a bag breaking machine which is arranged at a discharge port of the medium garbage conveying line and is used for receiving the magnetically-separated medium garbage, wherein the bag breaking machine is used for crushing the medium garbage;

the small-particle-size garbage treatment system is provided with a small-particle-size garbage conveying line for directly conveying the small-particle-size garbage to the brick firing system;

synthesize air separator, be equipped with fan unit, it sets up the feed opening department of bag-breaking machine is in order to receive the rubbish after the breakage, and it is equipped with the drum sieve equipment that the particle size was selected separately to the two-stage process, drum sieve equipment with section cylinder sieve mesh size unanimous and reduce from feed end to discharge end front and back section cylinder sieve mesh diameter time by time, be equipped with on the whole inner wall of drum sieve equipment can with rubbish after the breakage turns over repeatedly so that the rubbish after the breakage fully sieves protruding structure in, protruding structure can also fully turn over the discarded plastics in the rubbish after the breakage and come out and join the selection by winnowing in proper order, the rubbish after synthesizing air separator is selected separately is do not: heavy substances which are larger than the mesh aperture of the front section drum and are not screened out, light substances which are larger than the mesh aperture of the rear section drum and garbage which is screened by the front section drum and the rear section drum and takes organic matters as main components;

the light substance garbage treatment system is provided with a light substance conveying line for receiving light substances and an optical sorting machine, wherein the optical sorting machine carries out optical sorting on the light substances on the light substance conveying line so as to distinguish plastic components and separate the distinguished plastics, the plastic capable of being granulated is conveyed to a plastic granulating system, and the plastic incapable of being granulated is conveyed to the oxygen-free carbonization system;

the heavy material garbage treatment system is provided with a heavy material conveying line for receiving heavy materials, a second magnetic separator arranged at the adjacent side of the heavy material conveying line and a specific gravity sorting machine arranged at the discharge end of the heavy material conveying line, wherein the second magnetic separator magnetically attracts and separates magnetically attractable metal objects in the heavy materials, the specific gravity sorting machine is used for sorting first combustible materials and masonry tile materials in the heavy materials, the first combustible materials are conveyed to the oxygen-free carbonization system, and the masonry tile materials are conveyed to the brick burning system;

the organic matter treatment system is provided with an organic matter conveying line and a third magnetic separator arranged at the adjacent side of the organic matter conveying line, the organic matter conveying line receives garbage which is screened by the comprehensive winnowing machine and takes organic matters as main components, the third magnetic separator removes magnetically attractable matters in the garbage which takes the organic matters as main components, and the organic matter garbage from which the magnetically attractable matters are removed is conveyed to a pile of fertilizer fermentation system;

and the sewage treatment system receives percolate filtered out by the percolate system through a pipeline, and conveys the treated sewage to the brick firing system through a pipeline.

Further, the leachate system filters out leachate in the garbage storage pit in a filtering manner.

Further, the feeding machine is a plate feeding machine, and the plate feeding machine is a apron board conveyor.

Furthermore, the particle size of the large garbage sorted by the particle size screening equipment on the pre-sorting system is greater than or equal to 400mm, the particle size of the medium garbage is between 30mm and 400mm, and the particle size of the small garbage is less than or equal to 30 mm.

Further, crushing mechanism on the bag-breaking machine can break open the plastic bag of unopened and break up the debris that adhere to on the plastic bag, and it can also break the organic matter that the particle size is greater than 60mm to below 60 mm.

Furthermore, the mesh aperture of a section of drum screen on the comprehensive winnowing machine, which is close to the feeding end, of the drum screen equipment on the comprehensive winnowing machine is 60mm, and the mesh aperture of a section of drum screen on the comprehensive winnowing machine, which is far away from the feeding end, of the drum screen equipment on the comprehensive winnowing machine is 40 mm.

Furthermore, the inward convex structure is formed by distributing a plurality of shoveling plates on the whole inner wall of the drum screen equipment and combining the shoveling plates to form a spiral structure.

Further, the main component of the light substance is plastic, the plastic which can be granulated and is separated by the light separator is PP plastic and PE plastic, and the PP plastic and the PE plastic are conveyed to a plastic granulating system.

Further, before the first combustible matter separated from the heavy matter is conveyed to the anaerobic carbonization system, the first combustible matter is further crushed for multiple times by crushing equipment, and the crushed third combustible mixture enters drying equipment for drying treatment and is finally conveyed to the anaerobic carbonization system.

Furthermore, the heavy material is garbage which is larger than or equal to 60mm and mainly comprises combustible components, the incombustible components are removed after artificial intelligence sorting and specific gravity sorting, the combustible components are crushed for the first time to enable the particle size of the first combustible to be smaller than 50mm, and the particle size of the first combustible is crushed for the second time and the third time to enable the particle size of the first combustible to be smaller than 30 mm.

Furthermore, the drying equipment is provided with a storage bin, a first conveyor, a pre-drying line, a second conveyor, a temporary storage bin, a third conveyor, a dryer, a fourth conveyor and a drying bin along the feeding direction to the discharging direction; the third combustible mixture after multiple crushing enters a storage bin which is provided with a distributor for sending the third combustible mixture into the pre-drying line through the first conveyor, the pre-drying line is provided with a dryer for drying the third combustible mixture until the moisture content is below 20%, the heat source of the kiln is sent out by the brick firing system through a pipeline, the third combustible mixture after primary drying is sent into a temporary storage bin through the second conveyor, the third conveyor conveys the third combustible mixture in the temporary storage bin into the dryer, and the dryer dries the third combustible mixture after passing through for the second time, the heat sources of the kiln furnace and the heating system are the kiln furnace heat source sent out by the brick firing system through pipelines, the moisture ratio of the third combustible mixture dried by the dryer is less than 5%, and the fourth conveyor sends the secondarily dried third combustible mixture into the dry bin.

Further, the compost fermentation system comprises:

the distributing device is connected with a conveying device, the conveying device is the organic matter conveying line, the organic matter conveying line is also connected with a kitchen waste conveying system, and the organic mixture and the kitchen waste conveyed by the kitchen waste conveying system are conveyed to a plurality of groups of fermentation bins together;

the fermentation device comprises a plurality of groups of fermentation bins, a material distributing device and a ventilation device, wherein the fermentation bins are used for receiving the mixture from the material distributing device and filling biological bacteria into the fermentation bins, the fermentation bins are provided with a spraying device, a ventilation device and a heating device, the spraying device automatically sprays water to enable the mixture to meet the water content requirement of primary fermentation, the ventilation device enables the fermentation bins to be in an aerobic environment, and the heating device controls the fermentation temperature to enable the mixture to be in a proper temperature range;

the discharging device is connected with the discharging ports of the plurality of groups of fermentation bins and is provided with a discharging mechanism and a first belt conveyor connected with the discharging mechanism, and the discharging mechanism feeds the fermented materials into the first belt conveyor;

the screening device is a roller type screening machine, the feeding end of the screening device is connected to the discharging end of the first belt conveyor, the roller type screening machine screens the fermented materials into first oversize materials and first undersize materials through screen holes on the roller type screening machine, the diameter of the first oversize materials is larger than that of the first undersize materials, the first oversize materials are sent to a crushing device in front of a pyrolysis carbonization device through a second belt conveyor, and the crushing device crushes the first oversize materials and sends the first oversize materials to the pyrolysis carbonization device for carbonization treatment; and the first undersize is conveyed into a secondary fermentation bin through a second belt conveyor for secondary fermentation treatment, after the secondary fermentation treatment, the first undersize is screened by a fine screening machine with a mesh aperture smaller than that of the roller screening machine to be divided into a second oversize and a second undersize, the second oversize is conveyed to a pyrolysis carbonization device for carbonization treatment, and the second undersize is collected to form nutrient soil.

Furthermore, the multiple fermentation bins are primary fermentation bins, air ducts and percolate guide and discharge channels are arranged at the bottoms of the bin bottoms, air blowers are connected in the air ducts, one ends of the air ducts are connected to the inner cavity of the primary fermentation bin, the air outlets at the other ends of the air ducts are connected to a biological filter, the liquid inlet ends of the percolate guide and discharge channels are connected to the bottom filtering part of the primary fermentation bin, percolate generated in the garbage fermentation process enters the percolate guide and discharge channels through the bottom filtering part, and the percolate guide and discharge channels guide the percolate to a sewage pool.

Furthermore, a sewage pump is installed in the sewage pool, the water outlet end of the sewage pump is connected to the spraying device through a pipeline, and the water content of 40-60% required by composting is adjusted through the spraying device on the top of the fermentation bin;

when the water content of the mixture is lower than 40%, the sewage pump is started to pump out the water in the sewage tank and uniformly spray the water back to the primary fermentation bin;

when the water amount of the sewage pool is insufficient in winter or dry seasons, regulating the fermentation water content by using percolate in the percolate system, wherein the percolate system is provided with a regulating pool which receives percolate from the garbage storage pit through a pipeline;

when the water content is higher than 60%, the ventilation rate is adjusted by a blower, the temperature in the bin is increased, the water is evaporated rapidly, and the redundant percolate is discharged to the adjusting tank through the percolate guide drainage ditch, the water seal well, the drainage ditch or the seepage ditch and the pipe.

Furthermore, the compost fermentation system also comprises an impurity and heavy metal removing system, and the impurity and heavy metal removing system comprises:

the belt-type iron remover is arranged at the side adjacent to the conveying line between the distributing device and the plurality of groups of fermentation bins and is used for removing metal objects in organic matters before entering the plurality of groups of fermentation bins;

the primary drum screen is arranged on a conveying line at the discharge end of the belt type iron remover and is used for removing inorganic matters in the materials;

the permanent magnet drum is arranged at the conveying part between the primary drum and the secondary fermentation bin and is used for removing fine metal and iron dust in the fermentation product in the process that the organic fertilizer is transferred from the primary fermentation bin to the secondary fermentation bin;

the magnetic electric roller is arranged at the adjacent side of the fine screening machine and is used for removing metals in the organic fertilizer wrapped in the fertilizer in the screening process of the material after secondary fermentation;

and the secondary drum screen is arranged at the discharge end of the fine screening machine, receives second undersize materials from the fine screening machine, is used for screening out second combustible materials in the second undersize materials, and conveys the screened out second combustible materials to a crushing workshop before carbonization for crushing treatment.

Furthermore, the decontamination and heavy metal removal system further comprises:

the non-ferrous metal removing device is arranged on the rear conveying line of the secondary drum screen and is used for removing non-ferrous metals in the material through an eddy current device;

and the light sorting device is arranged on a rear conveying line of the secondary drum screen and is used for removing glass cullet in the materials.

Further, the plastic pelletizing system includes:

the crushing section is used for receiving the plastic capable of being granulated from the light substance garbage treatment system, and is provided with a magnetic separation device for removing magnetically attractable substances in the plastic capable of being granulated before crushing and manually discharging foreign matters in the plastic capable of being granulated;

a first stage cleaning section for receiving the granulated plastics crushed by the crushing section and provided with a high-speed cleaning system for primarily separating attachments on the granulated plastics;

the specific gravity separation section is arranged at the discharge end of the first-stage cleaning section and is used for separating the plastic film from the foreign matters;

the second-stage cleaning section is arranged on the rear conveying line of the specific gravity separation section, and is provided with a high-speed cleaning system to clean the separated plastic film again, so that foreign matters are removed, and meanwhile, the peculiar smell of the household garbage can be reduced;

a dehydration drying section for receiving the washed plastic film from the second stage washing section and dehydrating and drying the plastic film;

and the granulating section is used for receiving the plastic film from the dehydration drying section and granulating the plastic film.

Furthermore, the crusher of the crushing section adopts a high-speed single-shaft crusher, and a built-in water spraying device is arranged in the high-speed single-shaft crusher to realize the primary separation of the plastic capable of being granulated and the attachments on the plastic capable of being granulated;

the specific gravity separation section adopts a multi-shaft different-speed rotating shaft as a separation device, and the working condition is adjusted according to the characteristics of materials to separate the plastic film from the foreign matters;

the dehydration drying section dehydrates the plastic film by adopting a press type dehydrator, the discharge end of the press type dehydrator is connected with a dryer, and the dryer dries the dehydrated plastic film;

the granulation section adopts a 2-level granulation device to granulate the plastic film, the 2-level granulation device is provided with single screw extruders, and the discharge end of one single screw extruder is connected with the feed end of the other single screw extruder.

Further, still include a broken system, set up in on the conveyer line of oxygen-free carbonization system feed end, this broken system includes:

the primary crusher receives first combustible materials from the large garbage treatment system and oversize materials from the compost fermentation system, the oversize materials are second combustible materials, and the primary crusher crushes the received first combustible materials and the second combustible materials for the first time to form a first combustible mixture;

the second-stage crusher is connected to a lower feeding hopper of the first-stage crusher through a second belt conveyor, a magnetic separator is arranged on the second belt conveyor to magnetically attract and remove ferromagnetic materials in the first combustible mixture, and the second-stage crusher crushes the first combustible mixture again to form a second combustible mixture with a smaller particle size;

and the third crusher is connected into the lower discharging hopper of the second crusher through a third belt conveyor and is used for crushing the second combustible mixture for the third time, and the crushed third combustible mixture is sent into a drying device through a fourth belt conveyor.

Further, the anterior segment of the anaerobic carbonization system is a drying device, which comprises:

the carbonization furnace is used for receiving the third combustible mixture subjected to secondary drying by the drying equipment through a fifth conveyor, and heat energy generated by the biomass boiler is arranged on the carbonization furnace to carbonize the received third combustible mixture, and the third combustible mixture is carbonized to generate smoke and carbide;

the absorption tower is connected to the carbonization furnace through a pipeline to absorb the flue gas, solvent oil is filled in the lower part of an inner cavity of the absorption tower, a spraying device is arranged on an upper cavity in the absorption tower and is provided with an oil pump, the oil inlet end of the oil pump extends to the bottom of the solvent oil through a pipeline, the oil outlet end of the oil pump is connected with a spraying head of the spraying device through a pipeline, the flue gas after entering can be covered by the solvent oil sprayed by the spraying head, a condensable substance in the flue gas is mixed with the solvent oil to form tar liquid, the tar liquid falls to the lower part of the inner cavity of the absorption tower and forms mixed oil with the solvent oil, and a water cooling system is arranged on the lower part of the outer;

the non-condensable gas treatment system is used for treating non-condensable substances in the flue gas;

the kiln surface cloth bag dust remover is connected to the shell of the drying equipment through a pipeline, an exhaust fan is arranged in the pipeline, the exhaust fan sends smoke generated in the drying process of the drying equipment into the kiln surface cloth bag dust remover, the kiln surface cloth bag dust remover removes dust from the smoke and sends the smoke to a high-temperature area of a brick kiln through the pipeline for combustion, and the burned smoke is finally processed by an environment-friendly system of the brick kiln to reach the emission standard and is discharged into the air;

the ash processing system comprises a first screw conveyor, a discharger and a second screw conveyor which are arranged at an elevation angle of 30 degrees, wherein the first screw conveyor receives carbonized ash and sends the carbonized ash into the discharger, the discharger sends the ash into the second screw conveyor, and finally the ash enters an ash bin, and the ash bin is connected to a brickyard batching system through a conveying line so as to send the ash into the brickyard batching system.

Still further, the non-condensable gas processing system comprises:

the gas storage tank is connected to the top of the absorption tower through a pipeline and is used for receiving and storing non-condensable substances in the flue gas, and the non-condensable substances are non-condensable gas;

the water seal purifier is internally provided with water, an air inlet pipe is arranged on a wall body below the water surface, the air inlet pipe is connected to an air outlet end of the gas storage tank, and the non-condensable gas enters the water seal purifier from the air inlet pipe and is filtered by the water;

the combustor is arranged on an air outlet pipeline of the water seal purifier and used for igniting the non-condensable gas filtered by water, the heat generated after combustion is sent to a brick kiln environment-friendly system through a pipeline, and finally the non-condensable gas is treated by the brick kiln environment-friendly system to reach the emission standard and is discharged into the air.

Further, the tar processing system is also included, and comprises:

a pretreatment stage comprising: the system comprises a steam generator, a primary separating tank, a secondary separating tank, a sedimentation separator and a raw oil storage tank which are sequentially connected through a pipeline in the order of mixed oil treatment, wherein the steam generator receives mixed oil of solvent oil used for cooling carbonized flue gas and carbonized tar generated after garbage treatment by the anaerobic carbonization system, the mixed oil is heated through steam, the heated mixed oil is conveyed to the primary separating tank, the primary separating tank is provided with a first stirring device, emulsion agents are added into the mixed oil in the primary separating tank, the mixed oil is separated into water and heavy metal components under the action of a first stirring device and demulsifiers to form first mixed oil, the separated first mixed oil is conveyed to the secondary separating tank, the secondary separating tank is provided with a second stirring device, and the emulsion agents are added into the first mixed oil in the secondary separating tank, the first mixed oil is further subjected to light component impurity removal and water removal under the action of a second stirring device and the coagulant to form second mixed oil, the second mixed oil is sent to the sedimentation separator, the sedimentation separator performs sedimentation treatment on the second mixed oil for a period of time, the second mixed oil is subjected to sedimentation treatment to separate out trace oil-soluble impurities to form third mixed oil, the third mixed oil reaches the use standard and is sent to the raw oil storage tank, and a heat preservation device is arranged on the raw oil storage tank;

a distillation catalytic treatment section comprising: the third mixed oil enters the fractionating device to be refined and fractionated to form fourth mixed oil, the fourth mixed oil enters the high-level metering tank through secondary heat exchange, the fourth mixed oil in the high-level metering tank is output to enter the flash tower through the primary gasification furnace, the fourth mixed oil is separated from light solvent oil through the flash tower in an evaporation mode, the light solvent oil is output to an oil-water separator through a pipeline, a light oil condenser is arranged in the pipeline to condense gaseous light solvent oil, the oil-water separator separates the light solvent oil into wastewater and solvent oil, and the solvent oil is sent to a solvent oil finished product tank, the wastewater is conveyed to a wastewater collection tank; the oil output from the bottom of the flash tower is sent into the catalytic tower through a secondary gasification furnace, the top of the catalytic tower is provided with an air outlet, a first condenser is arranged at the air outlet, the gaseous substance entering the catalytic tower enters the first condenser through the air outlet, the first condenser condenses the gaseous substance into liquid mixed oil and sends the liquid mixed oil into a fuel oil-water separator, the fuel oil-water separator separates the received liquid mixed oil into non-standard diesel oil and wastewater, the wastewater is conveyed to the wastewater collection tank through a pipeline, and the non-standard diesel oil is output to a refining treatment section; a discharge port is formed in the bottom of the catalytic tower, unvaporized residual oil is output through the discharge port and sequentially passes through a secondary heat exchanger to enter a second condenser, the second condenser condenses the residual oil to form asphalt-like slag oil, and finally the residual oil enters a slag oil tank for storage;

a finishing section comprising: a refining reactor, a decoloring reactor, a primary deodorizing reactor, a secondary deodorizing reactor and a finished diesel tank which are connected in sequence by pipelines in a non-standard diesel processing sequence, wherein an intermediate tank is arranged in a pipeline between the refining reactor and the second condenser, non-standard diesel is collected in the intermediate tank, an oil pump conveys the non-standard diesel in the intermediate tank to the refining reactor and adds a flocculating agent into the refining reactor, the non-standard diesel is removed under the action of the flocculating agent except coke and asphaltene components in the non-standard diesel to form first non-standard diesel, the first non-standard diesel is conveyed to the decoloring reactor and is added with a decoloring oxidant into the decoloring reactor, the first non-standard diesel is oxidized under the action of the decoloring oxidant to form second non-standard diesel, and the second non-standard diesel sequentially passes through the primary deodorizing reactor, the decoloring reactor, the second non-standard diesel and the second non-standard diesel, Filtering impurities and odor in the oil removed by the secondary deodorizing reactor to form finished diesel oil, and conveying the finished diesel oil to the finished diesel oil tank for storage;

wherein, the heat sources of the primary heat exchanger, the secondary heat exchanger, the primary gasification furnace, the primary heat exchanger and the secondary heat exchanger are all provided by a biomass boiler.

Further, the brick firing system comprises:

one feeder receives the waste residue soil output by the small-particle-size waste treatment system, the masonry tile output by the heavy substance waste treatment system and the carbonized waste residue output by the anaerobic carbonization system, and the other feeder conveys externally added dry coal;

the device comprises two platen feeders and a jaw crusher between the two platen feeders, wherein the front-mounted plate feeder receives shale and inorganic matters output from the large garbage treatment system, the discharge end of the front-mounted plate feeder is connected with the jaw crusher, and the jaw crusher crushes the shale and the inorganic matters at one time and outputs the crushed shale and the inorganic matters to the rear-mounted plate feeder;

the weighing system is used for carrying out weight ratio on the raw materials respectively output by the two feeders and the rear plate feeder;

the crusher is a hammer crusher and is used for carrying out hammer crushing on the proportioned raw materials, and dust generated in the crushing process is filtered by a dust remover;

the rotary screen receives the crushed materials output by the hammer crusher, the crushed materials with the particle size below the rotary screen are output, and the crushed materials with the particle size not matched with the particle size are returned to the hammer crusher through the conveyer;

the front double-shaft stirrer is used for receiving the raw materials screened by the rotary screen, a conveyer between the front double-shaft stirrer and the rotary screen is used for receiving the dust filtered by the dust remover, and the upper part of the front double-shaft stirrer is also connected with a first automatic water distribution device;

the front double-roll mixer is used for receiving the raw materials output by the front double-shaft mixer and finely crushing the mixed raw materials;

the aging bin is used for receiving the finely crushed raw materials of the front-mounted roll crusher and aging the raw materials for a period of time;

the multi-bucket reclaimer takes out the aged raw materials and conveys the aged raw materials to the next process;

the box type feeder is used for receiving the aged raw materials of the multi-bucket reclaimer and conveying the aged raw materials to a rear double-roller machine;

the rear roller machine receives the aged raw material output by the box-type feeder and performs secondary fine crushing treatment;

the rear double-shaft stirrer is used for receiving the secondary fine crushed raw materials output by the rear double-roller machine, and is also connected with a second automatic water distribution device, and the rear double-shaft stirrer is used for stirring the secondary fine crushed raw materials;

the two-stage vacuum extruder is used for receiving the raw materials stirred by the rear double-shaft stirrer and extruding and molding the raw materials to form a brick blank;

the automatic strip and blank cutting machine is used for cutting the brick blank into strips and cutting the strip bricks into brick blanks meeting the specification;

a setting machine or a mechanical arm automatically sets blanks, the cut blanks are set, a circulating track is arranged between the blank setting machine or the mechanical arm and a brick unloading position, and a kiln car is arranged on the track and used for setting the blanks;

the pre-drying part is provided with a heating device for pre-drying the piled green bricks on the kiln car and receiving the waste heat from the tunnel kiln through a pipeline;

the drying chamber is used for receiving the kiln car of the pre-drying part and carrying out secondary drying treatment on the green bricks on the kiln car, the heat source of the drying chamber comes from the tunnel kiln, and the generated flue gas is discharged after being subjected to desulfurization treatment through a desulfurization tower;

the roasting kiln receives the kiln car after the secondary drying of the drying chamber and the green bricks on the kiln car and carries out roasting treatment on the green bricks so as to enable the green bricks to form usable bricks;

and the brick unloading machine is used for receiving the kiln car roasted by the roasting kiln and the usable bricks on the kiln car and unloading the usable bricks from the kiln car, an automatic packing machine is further arranged on the adjacent side of the brick unloading machine, the unloaded usable bricks are packed by the automatic packing machine, the empty kiln car is sent back to a stacking position through a circulating track, and the unloaded usable bricks or the packed usable bricks are sent to a finished product storage yard through conveying equipment.

Further, still include kitchen garbage processing system, kitchen garbage processing system includes:

the kitchen waste receiving trough is provided with a heating structure, and a heat source of the heating structure comes from an oil-gas boiler;

the dehydrating device is used for receiving the kitchen waste in the material receiving groove, and the dehydrated solid slag is sent to the compost fermentation system;

the liquid storage tank is used for collecting water dehydrated by the dehydration device;

the heating tank is connected with the liquid storage tank through a pipeline and a delivery pump, and a heat source of the heating tank comes from the oil-gas boiler;

the three-phase separator is used for receiving liquid from the heating tank, the liquid is separated into three substances of sewage, oil and slag through the three-phase separator, the sewage is conveyed to the water phase tank through a pipeline, the oil is conveyed to the oil phase tank through a pipeline, the slag is conveyed to the composting fermentation system through the conveying mechanism, the three-phase separator is provided with a cleaning mechanism, the cleaning mechanism is connected with a hot water tank through a pipeline, and a heat source of the hot water tank comes from the oil-gas boiler.

Furthermore, the kitchen waste treatment system further comprises a kitchen waste deodorization system, the kitchen waste deodorization system sprays mixed liquid of natural plant liquid and water through an atomization system, the mixed liquid is sprayed to form atomized liquid drops through an atomization nozzle, and the capsule-shaped nano groups capture odor factors to remove peculiar smell in the kitchen waste through the action force of hydrophobicity of the plant liquid.

Further, the kitchen waste deodorization system comprises:

the system comprises water softening equipment, an energy storage tank, a double-filtering device, a three-way proportional proportioning pump with two liquid inlets and one liquid outlet and a high-pressure pump which are connected in sequence through pipelines, wherein the water softening equipment is connected to a water inlet pipe;

the salt bucket is used for containing salt water, is connected to the water softening equipment bottle body and is mixed with the incoming tap water, and the mixed salt water is softened and output to the energy storage tank;

the liquid level sensor is used for sensing the liquid level height of the liquid medicine in the medicine barrel, the filter bag is arranged at the water inlet of the liquid outlet pipe and is arranged below the liquid level of the liquid medicine, and the other end of the liquid outlet pipe is connected to a liquid inlet of the proportional proportioning pump;

the deodorization system pipeline is provided with a spraying device, the liquid inlet end of the spraying device is connected with the liquid outlet of the high-pressure pump, a switching valve is arranged on the body of the deodorization system pipeline, an air compressor is connected to a pipeline node between the switching valve and the high-pressure pump through a pipeline, a drain pipe is arranged on a pipeline node between the liquid outlet of the proportional proportioning pump and the high-pressure pump, and a drain valve is arranged on the drain pipe;

and the automatic control box is used for controlling the work of the air compressor, the high-pressure pump and the liquid level sensor.

Further, the present invention also includes a wastewater treatment system comprising:

the system comprises at least one buffer tank, a first sand-isolating coarse filtration layer and a second sand-isolating coarse filtration layer, wherein the buffer tank is used for receiving percolate stock solution filtered by the percolate system;

through taking pump tube coupling buffer memory jar and the adjacent tertiary sedimentation tank that sets up, one of them sedimentation tank is for receiving the receiving pond of buffer memory jar discharge filtration liquid, is provided with the second between two adjacent sedimentation tanks and separates husky coarse filtration layer, all is provided with biological nest filtering layer and three biological nest filtering layer in each sedimentation tank and highly degressively follows the coarse filtration direction, all be provided with on the tertiary sedimentation tank: a water level measuring and sensing device for measuring the depth of the percolate, a water quantity balancing pump for balancing the percolate of each sedimentation tank and a sewage suction pump for sucking away the sludge water of the sedimentation tanks;

the bearing apron covers the last mouth of locating tertiary sedimentation tank, installs electrochemical oxidation device, salt water tank, oxidation tank and multiunit sodium hypochlorite jar on it, electrochemical oxidation device's electrode connection is to in the oxidation tank, the oxidation tank is connected to last-stage sedimentation tank and is intake the end and insert below the filtration liquid level after filtering through taking the pump tube way, and it collects the filtration liquid after the partial filtration and gets into jar body and pass through electrochemical oxidation device handles and form sodium hypochlorite, the salt water tank is through taking the pump tube coupling the oxidation tank, the oxidation tank is through taking the pump tube coupling multiunit sodium hypochlorite jar.

Compared with the prior art, the invention has the beneficial effects that: the comprehensive household garbage treatment system adopts a comprehensive treatment mode of combining comprehensive household garbage separation, organic matter composting, a plastic granulation system, an anaerobic carbonization system, construction garbage crushing and separation system, waste soil brick making according to a proportion, a sintering brick making system, a tar treatment system and a sewage treatment system. After sorting the primary garbage, recycling components such as iron and metal which can be recycled, and enabling the plastic to enter a plastic granulation system; pretreating the material with higher organic content, and then feeding the pretreated material into a composting and screening system; combustible materials in the garbage enter an oxygen-free carbonization system; the tar generated by carbonization enters a tar treatment system; carbon slag, slag soil, masonry tile blocks, waste water (after treatment) generated in the garbage treatment process and the like enter a sintered brick system to produce building material products; the heat energy generated when the coal of the kiln is bonded provides heat energy for carbonization. Therefore, in the comprehensive treatment plant, all components in the garbage reach the best use and complete zero landfill.

The invention reuses the domestic garbage, separates the domestic garbage by technical means to prepare products such as environment-friendly bricks, fertilizers, oil products and the like, and carries out environment-friendly treatment on pollutants in the preparation process without influencing the environment.

Drawings

FIG. 1 is a first block diagram of a general view of a domestic waste zero-solid discharge treatment system according to the present invention.

FIG. 2 is a second structural block diagram in the general diagram of the domestic waste zero-solid discharge treatment system of the present invention.

FIG. 3 is a third structural block diagram in the general diagram of the domestic waste zero-solid discharge treatment system of the present invention.

FIG. 4 is a block diagram of the composting fermentation system of the invention.

FIG. 5 is a diagram of the material balance 1 of the composting fermentation system of the invention.

FIG. 6 is a diagram of the material balance 2 of the composting fermentation system of the invention.

FIG. 7 is a block diagram of the decontamination and heavy metal removal system according to the present invention.

Fig. 8 is a block diagram of the plastic pelletizing system of the present invention.

Fig. 9 is a block diagram of the structure of an oxygen-free carbonization system according to the present invention.

FIG. 10 is a first block diagram of a tar treatment system according to the present invention.

FIG. 11 is a second block diagram of a tar treatment system according to the present invention.

FIG. 12 is a third block diagram of a tar treatment system according to the present invention.

FIG. 13 is a first block diagram of a general view of a brick firing system of the present invention.

FIG. 14 is a second block diagram of the general view of the brick firing system of the present invention.

FIG. 15 is a block diagram of a third configuration of the general view of the brick firing system of the present invention.

FIG. 16 is a fourth block diagram of the general view of the brick firing system of the present invention.

Fig. 17 is a block diagram of the kitchen waste treatment system of the present invention.

Fig. 18 is a block diagram showing the structure of the kitchen garbage deodorizing system according to the present invention.

FIG. 19 is a block diagram showing the construction of a sewage treatment system according to the present invention.

FIG. 20 is a schematic view of a wastewater treatment system according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and thus the protection scope of the present invention is more clearly and clearly defined. It should be apparent that the described embodiments of the present invention are only some embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

Example 1: the concrete structure of the invention is as follows:

referring to fig. 1-18, the present invention provides a system for zero emission of solid household garbage, comprising:

A preferred technical solution of this embodiment: the leachate system filters out leachate in the garbage storage pit in a filtering mode.

A preferred technical solution of this embodiment: the feeder is a plate feeder, and the plate feeder is a apron conveyor.

A preferred technical solution of this embodiment: the particle size of the large garbage sorted by the particle size screening equipment on the pre-sorting system is larger than or equal to 400mm, the particle size of the medium garbage is between 30mm and 400mm, and the particle size of the small garbage is smaller than or equal to 30 mm.

A preferred technical solution of this embodiment: crushing mechanism on the bag-breaking machine can break open unopened plastic bag and break up the debris that the adhesion is in on the plastic bag, it can also be greater than the organic matter of 60mm and break to below 60 mm.

A preferred technical solution of this embodiment: the mesh aperture of a section of drum screen on the comprehensive winnowing machine, which is close to the feeding end, of the drum screen equipment on the comprehensive winnowing machine is 60mm, and the mesh aperture of a section of drum screen on the comprehensive winnowing machine, which is far away from the feeding end, of the drum screen equipment on the comprehensive winnowing machine is 40 mm.

A preferred technical solution of this embodiment: the inward convex structure is formed by distributing a plurality of shoveling plates on the whole inner wall of the drum screen equipment and combining the shoveling plates to form a spiral structure.

A preferred technical solution of this embodiment: the main component of the light substance is plastic, the plastic which can be granulated and is separated by the light separator is PP plastic and PE plastic, and the PP plastic and the PE plastic are conveyed to a plastic granulating system.

A preferred technical solution of this embodiment: and before the first combustible separated from the heavy materials is conveyed to the anaerobic carbonization system, the first combustible is also crushed for multiple times by crushing equipment, and a third combustible mixture after crushing enters drying equipment for drying treatment and is finally conveyed to the anaerobic carbonization system.

A preferred technical solution of this embodiment: the heavy material is garbage which is larger than or equal to 60mm and mainly comprises combustible components, the non-combustible components are removed after artificial intelligence sorting and proportion sorting, the combustible components are subjected to primary crushing, the grain diameter of the first combustible is crushed to be smaller than 50mm, and the grain diameter of the first combustible is crushed to be smaller than 30mm through secondary crushing and tertiary crushing.

A preferred technical solution of this embodiment: the drying equipment is provided with a storage bin, a first conveyor, a pre-drying line, a second conveyor, a temporary storage bin, a third conveyor, a dryer, a fourth conveyor and a drying bin along the feeding direction to the discharging direction; the third combustible mixture after multiple crushing enters a storage bin which is provided with a distributor for sending the third combustible mixture into the pre-drying line through the first conveyor, the pre-drying line is provided with a dryer for drying the third combustible mixture until the moisture content is below 20%, the heat source of the kiln is sent out by the brick firing system through a pipeline, the third combustible mixture after primary drying is sent into a temporary storage bin through the second conveyor, the third conveyor conveys the third combustible mixture in the temporary storage bin into the dryer, and the dryer dries the third combustible mixture after passing through for the second time, the heat sources of the kiln furnace and the heating system are the kiln furnace heat source sent out by the brick firing system through pipelines, the moisture ratio of the third combustible mixture dried by the dryer is less than 5%, and the fourth conveyor sends the secondarily dried third combustible mixture into the dry bin.

A preferred technical solution of this embodiment: the composting fermentation system comprises:

A preferred technical solution of this embodiment: the multi-group fermentation bin is set as a primary fermentation bin, an air duct and a percolate guide and discharge channel are arranged at the bottom of the bin bottom, an air blower is connected in the air duct, one end of the air blower is connected to an inner cavity of the primary fermentation bin, an air outlet at the other end of the air duct is connected to a biological filter, a liquid inlet end of the percolate guide and discharge channel is connected to a bottom filtering part of the primary fermentation bin, percolate generated in the garbage fermentation process enters the percolate guide and discharge channel through the bottom filtering part, and the percolate guide and discharge channel guides the percolate to a sewage tank.

A preferred technical solution of this embodiment: the sewage pool is provided with a sewage pump, the water outlet end of the sewage pump is connected to the spraying device through a pipeline, and the water content of 40-60% required by composting is adjusted through the spraying device on the top of the fermentation bin;

A preferred technical solution of this embodiment: the compost fermentation system still includes one and goes miscellaneous, goes heavy metal system, go miscellaneous, go heavy metal system and include:

A preferred technical solution of this embodiment: the impurity removing and heavy metal removing system further comprises:

A preferred technical solution of this embodiment: the plastic pelletizing system includes:

A preferred technical solution of this embodiment: the crusher of the crushing section adopts a high-speed single-shaft crusher, and a built-in water spraying device is arranged in the high-speed single-shaft crusher to realize the primary separation of the plastic capable of being granulated and the attachments on the plastic capable of being granulated;

A preferred technical solution of this embodiment: the invention also comprises a crushing system which is arranged on the conveying line at the feeding end of the anaerobic carbonization system, and the crushing system comprises:

A preferred technical solution of this embodiment: the anterior segment of anaerobic carbonization system is drying equipment, and it includes:

A preferred technical solution of this embodiment: the noncondensable gas processing system includes:

A preferred technical solution of this embodiment: the present invention also includes a tar treatment system, comprising:

A preferred technical solution of this embodiment: the brick firing system comprises:

A preferred technical solution of this embodiment: the invention also includes a kitchen waste disposal system, which comprises:

A preferred technical solution of this embodiment: the kitchen waste treatment system further comprises a kitchen waste deodorization system, the kitchen waste deodorization system sprays mixed liquid of natural plant liquid and water through an atomization system, the mixed liquid is sprayed to form atomized liquid drops through an atomization nozzle, and the capsule-shaped nano clusters capture odor factors to remove peculiar smell in the kitchen waste through the hydrophobic acting force of the plant liquid.

A preferred technical solution of this embodiment: kitchen garbage deodorization system includes:

the system comprises a water softening device 2, an energy storage tank 3, a double-filtering device 6, a three-way proportional proportioning pump 8 with two liquid inlets and one liquid outlet and a high-pressure pump 9 which are connected in sequence through pipelines, wherein the water softening device 2 is connected to a water inlet pipe;

the salt bucket 1 is used for containing salt water, is connected to the bottle body of the water softening equipment 2, is mixed with the incoming tap water, softens the mixed salt water and outputs the softened salt water to the energy storage tank 3;

the medicine barrel 11 is filled with medicine liquid and is internally provided with a liquid level sensor 111 and a filter bag 112, the liquid level sensor 111 is used for sensing the liquid level height of the medicine liquid in the medicine barrel 11, the filter bag 112 is arranged at the water inlet of the liquid outlet pipe and is arranged below the liquid level of the medicine liquid, and the other end of the liquid outlet pipe is connected to a liquid inlet of the proportion proportioning pump 8;

the deodorization system pipeline 10 is provided with a spraying device, the liquid inlet end of the spraying device is connected with the liquid outlet of the high-pressure pump 9, a switch valve is installed on the pipe body of the deodorization system pipeline 10, an air compressor 4 is connected to the pipeline node between the switch valve and the high-pressure pump 9 through a pipeline, a drain pipe is installed on the pipeline node between the liquid outlet of the proportion proportioning pump 8 and the high-pressure pump 9, and a drain valve is installed on the drain pipe;

and the automatic control box is used for controlling the work of the air compressor 4, the high-pressure pump 9 and the liquid level sensor 111.

Example 2:

for example: the technological process of a county domestic garbage comprehensive treatment plant mainly comprises ten parts, namely a weighing and metering system, a comprehensive sorting system, an organic matter compost fermentation system and screening system, a plastic granulation system, a crushing and magnetic separation system for oversize large materials, a drying and anaerobic carbonization system, a tar treatment system, a construction garbage crushing and sorting system, a baked brick making system and a sewage treatment system. The household garbage is firstly measured and weighed after entering a comprehensive treatment plant, then enters a comprehensive sorting system for sorting, the screened combustible materials obtained after sorting are subjected to carbonization treatment after crushing and drying, and waste gas generated in the drying and carbonization treatment process enters a kiln for combustion; cleaning the obtained light plastic on the sieve, and crushing to produce plastic particles; sending the obtained organic mixture in the sieve to a composting workshop for fermentation to produce organic fertilizer; the obtained inorganic matter enters a construction waste treatment system to produce a sintered brick product, and the flue gas generated in the kiln brick sintering process is desulfurized by adopting a wet absorption method; the generated dust is dedusted by a bag-type dust remover system; the generated tar enters a tar treatment system for treatment; the obtained ferromagnetic metal is treated and then is sold; a part of the wastewater generated in the treatment process can enter a composting system to adjust the temperature in the process, and the rest of the wastewater enters a sewage treatment system to be treated and then is sent to a sintered brick system to participate in brick making; and waste gas generated in the comprehensive sorting process and the composting process is collected under negative pressure, then is subjected to comprehensive treatment and is discharged after reaching the standard.

The first step is as follows: the refuse entering the refuse storage pit needs to be weighed.

And the weighing and metering system is arranged at the garbage storage pit, and the garbage collection vehicle filled with garbage can drive to the unloading position of the comprehensive treatment workshop after weighing and metering. After the garbage collection vehicle filled with garbage enters a treatment plant, the garbage collection vehicle can drive to a discharge position of the comprehensive treatment workshop after weighing and metering. The weighing and metering system is managed by a computer, and the detection content is the total mass of each garbage collection vehicle. The automatic input data is: the vehicle number and the vehicle type of the vehicle. The data displayed on the display is: the vehicle detects time, vehicle number, vehicle type, total mass, load mass and daily accumulated value.

The second step is that: the garbage in the garbage storage pit is treated, namely the comprehensive household garbage treatment system disclosed by the invention is used for treating (as shown in figures 1-3).

The garbage collection vehicle is weighed by the weighbridge and then enters the unloading hall to unload materials into the garbage storage pit. The raw garbage is fed to a skirtboard conveyor through a grab bucket, and the skirtboard conveyor conveys the raw garbage to a pre-sorting machine. The pre-sorting machine can separate all large garbage (the particle size is larger than 400mm, the sorting rate is 99%), and simultaneously can separate sand and soil garbage in the garbage by about 80% (the g diameter is less than 30 mm), the materials between 30mm and 400mm are sent to the garbage crusher, and are crushed by the bag breaking machine and fall into the comprehensive sorting machine.

The crusher can completely open unopened plastic bags in the garbage, break up sundries stuck on the plastic bags, and crush organic matters with the particle size larger than 60mm to below 60 mm.

The garbage treated by the bag breaking crusher naturally falls to the comprehensive winnowing machine and enters a rotary drum screen of the comprehensive winnowing machine. The screen drum of the comprehensive winnowing machine is divided into a front section and a rear section, the aperture of the front section screen drum is 60mm, and the screen holes of the rear section are 40 mm. Six spiral lines combined by shoveling plates are distributed on the inner wall of the roller, and the spiral lines combined by the shoveling plates can not only repeatedly tumble the garbage in the roller to fully participate in screening, but also fully tumble waste plastics in the garbage to sequentially participate in winnowing.

The light materials are sent into a rear-section screen drum by wind, the main component of the materials larger than 40mm is plastic, and the materials enter a subsequent plastic granulation system after light sorting; the undersize between the front-section screen drum and the rear-section screen drum is the garbage component mainly containing organic matters, and the garbage enters an aerobic composting system section; the combustible material with the front section larger than 60mm is separated by artificial intelligence and specific gravity to remove incombustible components such as masonry tiles. After the combustible components are crushed to be less than 50mm in particle size through primary crushing, the combustible components are crushed to be less than 30mm through secondary crushing and tertiary crushing, the crushed combustible components enter a storage bin, the materials are divided into two drying treatment lines through the storage bin, a primary dryer dries water to be less than 20%, the dried combustible components enter a storage bin for temporary storage, then the dried combustible components are respectively supplied to secondary drying equipment through a distributor to ensure that the water is dried to be less than 5%, the dried combustible components enter a secondary storage bin for temporary storage, then the carbonized combustible components enter an oxygen-free carbonization system, carbonized gas is combusted through a non-condensable gas on a carbonizing machine after tar extraction, energy is supplemented for the line carbonization system, and solid carbonized slag generated after carbonization is sent to a brick making system to serve as a part of raw materials for producing.

The third step: organic waste compost fermentation treatment, namely the treatment system of the invention shown in figures 4-7, and figure 4 is a structural block diagram of the compost fermentation system of the invention. FIG. 5 is a diagram of the material balance 1 of the composting fermentation system of the invention. FIG. 6 is a diagram of the material balance 2 of the composting fermentation system of the invention.

And (3) dehydrating the organic mixture separated by the household garbage comprehensive separation workshop and the kitchen garbage, conveying the dehydrated organic mixture and the kitchen garbage to a primary fermentation room of a composting workshop, detecting the carbon-nitrogen ratio and the water content of the raw materials, and making a reasonable fermentation process.

Firstly, primary fermentation treatment:

and (3) conveying the organic mixture and the dehydrated kitchen waste to a fermentation bin by a conveyor, spraying water automatically or according to the requirement of primary fermentation water content (40-60%), starting forced ventilation after the bin is loaded, controlling the temperature to be about 65 ℃, and completing fermentation every 7-15 days. After the fermentation time is finished, the fermented materials are taken out of the bin, the materials are conveyed to a discharging belt conveyor through a discharging mechanism, the discharging belt conveyor conveys the materials to a drum screen for mechanical screening treatment, oversize materials (materials with the particle size larger than 30 mm) are conveyed to a crushing process unit before pyrolysis and carbonization through a belt conveyor, and undersize materials (materials with the particle size smaller than 30 mm) are conveyed to a secondary fermentation workshop through the belt conveyor for secondary fermentation treatment.

The bottom of the primary fermentation bin is provided with an air duct and a percolate guide and discharge channel, the air blower pumps out the gas in the fermentation bin, so that the air outside the garbage stack is sucked into the stack and is always in an aerobic state, and the pumped gas is introduced and discharged to a biological filter in a factory. Leachate generated in the garbage fermentation process is collected into a sewage tank through a guide and discharge channel at the bottom of a fermentation bin, the water content of 40-60% required by composting is adjusted through a spray pipe at the top of the bin, when the water content is lower than 40%, a sewage pump in the sewage tank is started to uniformly spray water back into the bin, and when the water content of the sewage tank is insufficient in winter or dry season, the water content of fermentation is adjusted through the leachate of an adjusting tank. When the water content is higher than 60%, adjusting the ventilation quantity, and increasing the temperature in the bin to quickly evaporate the water; the redundant percolate passes through a seepage and air guide ditch, a water seal well, a seepage (water) drainage ditch and a pipe and is discharged to a percolate adjusting tank.

The fermentation production nutrient soil system utilizes the aerobic fermentation high-temperature heap principle to biochemically decompose organic matters in the garbage by microorganisms under a controlled condition, so that the organic matters are changed into a nutrient soil-like substance with good stability. The high-temperature aerobic fermentation has the advantages of thorough decomposition, short fermentation period, controllable odor, easy realization of automation and the like. The heat released in the aerobic fermentation process raises the temperature of the pile, and the high temperature stage lasts for a long time to achieve harmlessness.

The temperature rise in the high-temperature aerobic fermentation process is caused by the heat released by aerobic microorganisms such as bacteria, fungi, yeasts and actinomycetes in the process of decomposing organic matters, the heap temperature begins to rise, mesophilic bacteria are active and propagate in large quantities along with the temperature rise, so that more organic matters are degraded and more heat energy is released, and the heap body material has good heat preservation, so that the temperature rise is fast, and the temperature can reach 50-60 ℃ or higher within a few days. At this time, mesophilic bacteria start to inhibit and even die, thermophilic bacteria such as fungi, actinomycetes and the like replace the thermophilic bacteria, besides the residual and newly formed soluble substances in the organic matters continue to decompose and transform, complex organic matters such as hemicellulose, cellulose and protein are decomposed, humus begins to form, the heap body substance enters a stable state, the temperature continuously drops, and the fermentation is about to end. When the temperature drops and stabilizes at about 40 ℃, the bulk material is substantially stabilized.

The aerobic fermentation is roughly divided into three stages from stacking to decomposition to complete the biochemical reaction process, namely: heat generation, high temperature and decomposition stage.

The main factors influencing the fermentation process are:

a. carbonitriding (C/N). N in the heap organic matter is a nutrient source of aerobic microorganisms, and C is an energy source of heap biochemistry. The ideal carbon-nitrogen ratio of the stack raw material is 20-35. If the carbon-nitrogen content of the initial heap is high (e.g. sawdust, straw), the growth of microorganisms is limited due to the lack of N, and the fermentation period will be correspondingly prolonged, if the carbon-nitrogen content of the initial heap is low (e.g. feces, sludge), a portion of N will be converted into NH under high temperature conditions, especially at high pH and under forced ventilation₃But escape into the air, causing the loss of the nutrient element N.

b. And (4) moisture. The suitable water content is 40-60%. If the water content is too high, a large amount of percolate can be generated to block gaps in the garbage stack body, so that the stack body is changed from an aerobic state to an anaerobic state. The biochemical reaction process is also hindered by the excessively low water content, and the stack biological digestion process is seriously hindered when the water content is lower than 20 percent.

c. The particle size of the material. Theoretically, the particles of the heap are as small as possible to provide an effective large contact area with the air and to make it easier and faster for aerobic microorganisms to break down and digest them. In the actual fermentation process, if the particles of the heap are too small, the porosity of the heap may be reduced, which is disadvantageous in terms of ventilation and oxygen supply. For piled materials with certain rigidity or difficult compaction, such as branches, plant straws and the like, the materials need to be crushed to 10-50 mm and can be digested and decomposed in a short time, and the size of piled materials such as fruit peels and vegetables can be larger.

d. Ventilating and supplying oxygen. Generally, the oxygen concentration in the stack body is lower than 10%, the decomposition and digestion process of aerobic microorganisms is stopped, and therefore, the aerobic state of the stack body needs to be maintained by turning the stack or ventilation and oxygen supply measures.

e. Temperature and PH. The aerobic microorganisms generate a large amount of heat energy in the process of biochemical decomposition of the stack organic matters, and the temperature of the stack is increased. With the rise of the temperature of the heap body, the decomposition and digestion process is accelerated, and worm eggs, pathogenic bacteria, weed seeds and the like can be killed, so that the heap body product can be safely used for the land. The temperature of the stack is between 25 and 45 ℃, and the stack is suitable for the growth of mesophilic bacteria; the temperature is between 55 and 60 ℃, and the growth of thermophilic bacteria is suitable. The optimal temperature of the heap fermentation is 55-60 ℃, when the temperature of the heap is higher than 60 ℃, the activity of thermophilic bacteria is inhibited, and the temperature of the heap is controlled below 70 ℃ in the actual heap process. The activity of aerobic microorganisms requires that the pH value of the stacked material is neutral, and the ideal value is 6-7.5.

The primary fermentation process should be scheduled on a strict and precise schedule.

The wrong fermentation process will produce strong odorous substances which are the sign of insufficient fermentation ventilation (which means that anaerobic fermentation process has already started in the absence of oxygen) and after seven days of high temperature degradation, the semi-matured fermented material will be transported to the clinker area for stacking.

Secondly, secondary fermentation treatment:

the working requirement of the working area is that the maximum width of the strip pile is 8m, the maximum height of the strip pile is 2m, and the fermentation degradation lasts for 3-4 weeks (different time in winter and summer), and in the step, the strip pile is turned twice per week within one week. The fermentation maturation lasts about 25 days, and during the fermentation maturation period, the stirring is carried out for 2 times in the first week and then once a week, and the piling of the strips can be increased or decreased after the fermentation degradation and maturation process. The rotten clinker is sieved again to be less than 12mm, so that the quality of the organic compost is achieved.

A belt type iron remover: removing metals such as batteries, larger metals (such as can boxes, dew tanks and the like), iron sheets, iron wires and the like in the organic matters before entering the fermentation bin;

a permanent magnet drum: removing fine metal and iron dust, such as iron nails, button cells, micro magnetic iron dust and the like, in the materials in the process of the organic fertilizer from the primary fermentation bin to the secondary fermentation bin;

magnetic force electric roller: and the metal wrapped in the fertilizer in the organic fertilizer in the material sorting process after secondary fermentation is removed, the small button cell is removed in the material falling process, and the efficiency is high.

And (4) screening by using a primary roller and a secondary roller to remove combustible substances such as broken plastics, bamboo and wood, and conveying to a crushing workshop before carbonization.

For the nonferrous metals contained in the material, the nonferrous metals can be removed by using a vortex device; the glass cullet may be removed using an optical sorter.

The sorted batteries are temporarily stored in a special storehouse in the storage place and are processed by a professional company later. The quality of the organic fertilizer is ensured by removing combustible impurities of bamboo and wood, magnetic substances such as metal and the like, and harmful substances such as batteries, glass slag and the like.

Example 3:

and (3) controlling the pollutants:

the main pollutant emission sources of the composting section are as follows: odor generated by the primary and secondary fermentation chambers and percolate generated at the bottom of the primary fermentation chamber.

1. Odor generation

The bad smell is generated by anaerobic reaction, usually without methane in the fermentation working area, the methane is generated only because the oxygen (oxygen of the surrounding environment) is not supplied to the whole strip pile or part of the strip pile, and the best solution is to regularly ventilate the materials according to the process requirements.

Before methane starts to be produced, there is a stage of odour generation, which is an indication of problems with the fermentation process.

2. Methane detection

The detection of methane in the percolate pool can be carried out by using portable methane and H₂S, detecting by using the detector, and starting the ventilation device to reduce methane and H when the concentration exceeds the standard₂The concentration of S prevents the discharge of odor.

Controlling odor: and (3) deodorizing by adopting a biological deodorization tower.

After the organic fertilizer is put into production, the produced organic fertilizer (nutrient soil) is sent to a qualification unit for detection, and the detection result meets the requirement and then can be used, the dosage of the farmland per mu per year is less than 4t for cohesive soil and less than 3t for sandy soil, the application on flowers, grasslands, gardens and clay lands is advocated, and the enterprise intends to sell the produced organic fertilizer (nutrient soil) to peripheral nursery lands for flower and tree cultivation, garden greening and the like.

Example 4:

as shown in fig. 8, the specific process of the plastic molding system is as follows:

the regeneration granulation of PE film plastics selected from domestic garbage can be mainly divided into the following 5 treatment sections:

1. crushing section

After PE film plastic waste plastics are fed, foreign matters are discharged manually and magnetic separation is added simultaneously, and uncomfortable matters are removed before crushing. According to the crushing characteristic of the film materials, a high-speed single-shaft crusher is adopted. In order to achieve better crushing effect and facilitate the treatment of subsequent processes, the working section adopts a built-in water spraying wet crushing mode; and the PE film is broken and simultaneously the PE film is primarily separated from attachments.

2. A cleaning section:

in order to remove the attachments of the films and obtain high-quality plastic regenerated products, the working section is provided with a secondary high-speed cleaning system.

The first-stage high-speed cleaning device is arranged after the crushing process, and is used for separating the thin film from attachments, so that the subsequent specific gravity separator can realize a better separation effect. The second stage of high-speed washing is provided after the specific gravity separation, and aims to wash the PE films after the specific gravity separation again, remove foreign matters and reduce odor from household garbage. The PE film is effectively cleaned through two-stage high-speed cleaning, and the odor in the particles is reduced while the high purity and high quality of the regenerated plastic particles are ensured.

3. And (4) sorting:

the working section mainly comprises two processes of foreign matter removal and specific gravity separation before crushing.

The specific gravity separation adopts a multi-shaft different-speed rotating shaft, the working condition is adjusted according to the characteristics of the materials, the PE film and the foreign matters are separated to the maximum extent, including the separation with heterogeneous plastics such as PS, PVC and the like, the purity of the materials is ensured, and the subsequent process can be smoothly operated.

4. Dehydration drying section

The PE film after high-speed cleaning has large specific surface area, so that the centrifugal dehydrator is difficult to achieve effective dehydration effect. If the dewatering effect is not good, the drying section consumes much energy. Therefore, the working section adopts the principle of dewatering mainly and drying secondarily, adopts a press type dewatering machine to dewater the PE film to the maximum extent, and then uses a drying machine to dry the PE film. The best effect of dehydration and drying is realized through the effective combination of dehydration and drying.

5. A granulation section:

in order to ensure the quality of the regenerated particles, a 2-stage granulation process is adopted. Meanwhile, in order to control the investment cost, a double-screw extruder is not suitable for the working section, and a single-screw extruder is arranged in the 2-stage extruder. Considering that the PE film separated from the domestic garbage contains a large amount of heterogeneous materials such as aluminum films, the conventional waste plastic granulation mode is not adopted in the equipment function configuration, and the following process improvement is adopted to ensure the granulation yield and quality.

Example 5:

the invention is also provided with a system for crushing and removing iron from oversize materials.

The method comprises the following steps of (1) transferring large screened materials of domestic garbage separated in a pretreatment workshop and screened oversize materials of final products in a composting workshop to a crushing workshop before drying and carbonization, conveying the large screened materials and the screened oversize materials into a primary crusher by using a belt conveyor to crush the large screened materials into strips or fragments with the size of about 60mm, connecting a material receiving hopper with the material receiving hopper and receiving the materials by using a belt conveyor, selecting ferromagnetic materials by using a magnetic separator in the process of conveying the large screened materials and the screened oversize materials to a secondary crushing feeding port by using a secondary crusher, crushing the large screened materials and the screened oversize materials into the materials with the size of about 30mm by using the secondary crusher, carrying out; in order to ensure that the particle size of the materials is uniform, the materials after the second-stage crushing are conveyed to the third-stage crusher again by a belt to be crushed, and the crushed materials are conveyed to a storage bin in front of the drying system by a belt conveyor to be carbonized after being dried.

Example 6:

the following is a specific description of the oxygen-free carbonation system of the present invention: fig. 9 is a block diagram of the structure of an oxygen-free carbonization system according to the present invention.

The drying and anaerobic carbonization equipment is arranged on the kiln surface of the baked brick manufacturing system, the drying heat-taking comes from the rear-end cooling section in the baked brick process, in order not to influence the quality of the baked brick, the heat is not easy to be extracted too fast in the cooling section, and the heat-taking position is detailed in a temperature curve graph of the baked brick.

The method comprises the steps of (materials with the thickness less than or equal to 30 mm) storage bin-conveyor-predrying machine-conveyor-temporary storage bin-conveyor-dryer-conveyor-dry storage bin-conveyor-carbonization furnace-cooling-tail carbon-entering brick factory batching system.

The process comprises the following steps:

1. the process of the pre-drying part is described as follows:

the mixed garbage with the thickness of less than 20mm after separation and crushing of the household garbage is about 200t/d (with water content of 45%) of organic matter comprehensive garbage, the mixed garbage enters a trouser bin (with a leaf in the bin and the power of 4kw × 2) through a conveyor, the lower opening of the bin is connected with a screw feeder, the screw feeder feeds the organic matter comprehensive garbage to a drum dryer at a constant speed, the organic matter comprehensive garbage is stirred, dried and heated to 100-120 ℃ (the moisture is removed by 20-25%), the moisture is dried to 20-25%, odorous gas is pumped to a vertical cooler through an exhaust fan, the cooled mixed garbage enters a brick kiln high-temperature area for combustion (finally reaches the standard and is discharged after being processed by a brick kiln environmental protection system), the material is distributed to the conveyor through an unloader, enters another belt conveyor with a plow discharger, and then sequentially enters a transfer.

2. Description of the Process of drying

And (3) storing the organic material with 20-25% of water content after pre-drying into a transfer bin, starting a bin discharger, feeding the material into a scraper conveyor through a conveyor, feeding the material into a horizontal spiral conveyor, feeding the material into a spiral dryer (the feeding amount is 20t/h, and the water content is 23% -25%), and drying the material at 250 ℃ (the water content is less than 5%). The gas and the external combustion waste gas are pumped to a kiln surface by an exhaust fan, wet-type electric dust collection is carried out, and then the gas and the external combustion waste gas enter a high-temperature area of the brick kiln for combustion (finally the gas and the external combustion waste gas are treated by an environment-friendly system of the brick kiln and then are discharged after reaching standards). And feeding the dried material to a conveyer through a spiral conveyer with an elevation angle of 30 degrees. The conveyor is transferred to another conveyor with a discharger and enters the storage bin. Store up 2 of feed bin.

3. Description of the carbonization furnace

And (4) drying for the second time until the water content is less than 5% (about 116t/d), storing the materials into a transfer bin, opening the bin, and enabling the materials with a discharger to pass through a screw conveyor with an elevation angle of 30 degrees. Enters another horizontal screw conveyer through a star-shaped discharger and enters a carbonization furnace. The gas carbonized by 450-600 ℃ (temperature can be controlled) is connected into an absorption tower, a spraying system (solvent oil is used as a spraying raw material, and mixed oil is cooled by external water) is arranged in the absorption tower, tar formed by combustible gas is cooled by spraying the solvent oil and is mutually mixed to form mixed oil, and the mixed oil is pumped into a tar treatment system. The non-condensable gas after the tar extraction is sent into a gas storage tank through a pipeline, and is combusted on a combustor of the carbonization furnace after water seal purification (finally, the non-condensable gas is treated by a brick kiln environment-friendly system and is discharged after reaching the standard). And (3) pumping the gas generated by drying to a kiln cloth bag dust remover through an exhaust fan, removing dust, and then entering a high-temperature area of the brick kiln for combustion (finally, the gas is treated by an environment-friendly system of the brick kiln and then is discharged after reaching the standard). The carbonized ash is sent out by a screw conveyer with an elevation angle of 30 ℃, enters the screw conveyer through a discharger and is sent to a storage bin, and then enters a batching system of a brickyard.

Example 7:

the following is the exhaust gas treatment process.

①, drying and carbonizing tail gas treatment process:

boil-off gas in the storage silo (about 800 m)³H × 4-pre-drying tail gas (about 8000 m)³H- -secondary drying tail gas (about 3000 m)³H × 4) - - - -bag house dust removal (about 31200 m)³The process comprises the steps of/h), brick kiln oxygen feeding system and combustion.

②, carbonization tail gas treatment process:

carbonized gas- -primary dedusting- -mixed solvent oil quenching- -tar extraction- -carbonized noncondensable gas (300 m)³And/h × 2) enters a burner of the carbonization furnace to be combusted and then enters the kiln.

③, brick kiln tail gas treatment process:

the tail temperature of a brick taking kiln is about 280 ℃, combined denitration treatment is carried out, bricks are green, an induced draft fan enters a desulfurization system, a wet electric dust collection system is monitored on line, and the emission of a chimney reaches the standard.

5. And (4) utilizing heat energy.

The heat of the ingredients required for each kilogram of bricks is 350 kilocalories, and the production per hour is about: 200000 bricks, total heat: 700 ten thousand cards/hour.

Each kilogram of brick ingredients are 450 kcal. I.e. a total heat quantity of 900 ten thousand cards/hour,

the heat energy per hour of each kiln is surplus: 200 ten thousand large cards are available.

Drying and removing water by 3 tons, and dividing into 2 devices, wherein the single device needs to be evaporated: 1.5 tons of water, and 63 ten thousand calories of heat energy required by the evaporation of each ton of water, calculated according to the thermal efficiency of 70%. Each equipment consumes heat energy: 135 ten thousand cards. And 2 devices consume 270 million heat energy. And the kiln is arranged in 300-400 ℃ temperature areas at the tail of 2 kilns.

4 tons of water are removed by secondary drying, 2 sets of equipment are divided, and a single device needs to be evaporated: 2 tons of water, 63 ten thousand calories of heat energy required for evaporating each ton of water, and the calculation is carried out according to the heat efficiency of 70 percent. Each set of equipment (2) consumes thermal energy: 180 ten thousand cards. 2, 360 ten thousand big cards. 2 devices are arranged on the kiln surface in a temperature zone of 400 ℃.

The carbonization furnace has 2 sets, the combustible is processed by a single set for 3 tons/hour, and the average carbonization value of each ton of combustible is consumed under the micro-oxygen state: 60 ten thousand calories of heat energy (reference value). The single carbonization furnace needs to: 180 ten thousand calories of heat energy. The heat energy required after the production is started needs to be provided by noncondensable combustible gas, and each furnace actually consumes 60 ten thousand calories of heat energy. 2 stations required 120 kcal/hr with preheat. 2 equipment consumes heat: is installed in 750-860 deg.c temperature area on the kiln surface.

And (4) conclusion: total heat required for the system: 750 million cards, and the brick kiln system can provide the waste heat of 200 million cards.

275 high calorie of heat energy is added to each brick under the original heat balance state of the brick kiln according to 20000kg of bricks per hour. The heat energy requirement can be met by adding 550 ten thousand of cards, namely adding the heat energy to 275 kilocalories per kilogram on the basis of the original heat energy of 450 kilocalories per kilogram of bricks. (or increasing heat energy with wood gasification burner)

6. Environmental protection index control: dust emission is less than 10mg/m³Sulfur dioxide less than 30mg/m³Nitrogen oxides (based on 18 percent of oxygen content) are less than 100mg/m³The wastewater is treated and recycled to a process system through sewage treatment, and the emission of other harmful gases meets the national standard.

The system solves the problems that the domestic garbage is treated by the working procedures of sorting, drying, cracking, carbonizing, treating tailings and the like, and the gas generated in the technical process enters an oxygen supply system of a brick-firing kiln to be inactivated at high temperature. The tailings enter a brick making system; wastewater generated in the separation process enters a sewage adjusting tank, and gas generated in the composting process is collected and treated through a pipeline and then discharged after reaching the standard, so that zero discharge of organic garbage is really realized.

Example 8:

the following is a process of a tar treatment system, and FIGS. 10-12 are general views of the tar treatment system of the present invention.

Firstly, raw material sources are as follows:

the raw materials are from the mixture of carbonized tar generated by the high-temperature carbonization process treatment of household garbage and kitchen garbage and solvent oil (used for cooling carbonized smoke).

II, the properties of the raw materials:

the tar contains a large amount of coke and asphaltene and has high density and viscosity. But the physical and chemical indexes are similar to the indexes of diesel components. After being processed, the fuel oil can be used as fuel oil, and the market demand is very large, because the price of the fuel oil is only half of that of other fuel oils, the fuel oil has very strong market competitiveness. The economic benefit is considerable, and the social effect conforms to the aim of recycling environmental protection wastes.

Thirdly, adopting a pretreatment process for the raw materials:

1. pretreatment: the mixed oil is heated to about 70 ℃ by steam with the temperature of about 130 ℃ provided by a steam generator, enters a first-stage stirring tank (separator), and is separated from most of water and heavy metal components (13% of water and 1% of impurities) under the action of a demulsifier. The separated oil product enters a secondary separation tank, a small amount of light component impurities such as water and the like of the oil product account for about 1% under the action of stirring and a flocculating agent, and then the oil product is further purified by a sedimentation separator for about 12 hours of sedimentation time to remove trace oil-soluble impurities in the oil product, so that the mixed oil enters a raw oil storage tank for heat preservation and standby after reaching the use standard.

2. And (3) distillation catalytic treatment: the pretreated mixed oil enters a refining and fractionating device: after secondary heat exchange, the oil enters a metering high-level tank and then enters a flash tower through primary vaporization, part of the light solvent oil is separated out and accounts for about 15%, and the bottom oil enters a top vapor phase of a catalytic tower after secondary vaporization and enters a diesel oil (fuel oil tank) tank after being cooled, and the content of the bottom oil is about 70%. And the bottom residual oil enters a residual oil tank after secondary heat exchange and cooling.

3. Refining treatment: pumping the refined non-standard diesel oil from the intermediate tank into a refining reactor to react with a flocculating agent, removing coke and asphaltene components in the oil product, then entering a decoloring reactor, fully contacting and reacting under the action of a decoloring oxidant to perform an oxidation reaction, and filtering by a secondary deodorizing reactor to completely remove impurities and odor in the oil. About 1 percent. The light solvent oil enters the distillation tower in the finished oil storage tank and is processed to achieve the effects of decoloring and deodorizing.

Fourthly, explaining a material treatment process:

1. the feeding amount is controlled by a feeding high-level metering tank and a balance valve at the inlet and the outlet of a feeding pump.

2. The liquid level of the high-level metering tank is controlled and adjusted by the liquid level at the bottom of the flash tower (automatic valve combination of instruments and a liquid level meter).

3. The liquid level of the flash tower is controlled and adjusted by the liquid level of the bottom of the catalytic tower.

4. The liquid level at the bottom of the catalytic tower is adjusted in series by the liquid level at the bottom of the flash tower.

5. Therefore, the liquid level and the vaporization temperature of each tower bottom are well controlled, and the double balance of materials and heat can be ensured.

6. The liquid level temperature control adopts a series-connection and parallel-connection adjusting mode to realize automatic operation by using a pneumatic membrane adjusting valve.

Example 9:

the following process of the construction waste crushing and sorting system is as follows:

the construction waste is transported into a garden through a collecting vehicle, and then is discharged beside a crushing area, and the raw materials are loaded through a loading machine. The crushing raw materials are usually building mixing materials, concrete residues, asphalt residues, natural stones and the like. When the size of the raw material is too large (generally, the size should not exceed 600mm), the raw material is pre-crushed and then fed into a feeding system of the mobile crusher. Depending on the type of material to be crushed, the capacity of the mobile crusher may vary, and may typically reach 250-350 t/h.

The construction waste crushing and sorting system consists of a feeding device, an impact crusher, a final screening device and a visual control system.

The crushing process of the construction waste crusher is roughly divided into the following stages: raw materials are fed into a factory, coarsely crushed, finely crushed, screened, washed and selected by sand, discharged in an environment-friendly way and the like.

1. The raw material is transported to a raw material yard by a truck, the loading capacity of the yard is more than 7000 cubic meters, the raw material is directly transported to a raw material feeding bin by a small-sized transport vehicle through simple sorting, and a crushing hammer is required to be arranged beside the raw material feeding bin to crush the raw material exceeding the maximum crushing specification of a jaw crusher to qualified raw material.

2. The raw materials are quantitatively fed to a jaw crusher at a constant speed through a vibrating feeder to be coarsely crushed, and the coarsely crushed raw materials are conveyed to a vibrating screen through a conveyor to be screened.

3. The vibrating screen is originally divided into three parts: 1) soil with the thickness less than 5mm and partial sand are conveyed to a separate stockyard by a conveyor to become brick raw materials; 2) conveying the raw materials of 5-48 mm to (13) a vibrating screen by a conveyor for fine division; 3) the raw materials larger than 48mm are conveyed to a reaction crusher through a conveyor to be crushed, the crushed mixture is conveyed to a vibrating screen (13) through the conveyor to be sorted, and two iron removers are respectively arranged above No. 14 and No. 7 belt conveyors.

4. The vibrating screen (13) is used for sorting 0-8 mm, 8-19.5 mm, 19.5-31 mm, 31-48 mm, 8-19.5 mm, 19.5-31 mm and 31-48 mm; respectively sent to a designated bin through a conveyor (with spray water), and respectively as follows: conveying the sand with the thickness of 0-8 mm to a fine sand recovery all-in-one machine through a conveyor for washing and selecting; and (4) conveying the materials larger than 48mm to a reaction crusher by a belt conveyor for circular crushing until qualified products are obtained.

5. And conveying the washed sand to a designated bin through a belt conveyor.

6. Environmental dust removal is accomplished using a pulse dust collector.

7. Pumping the washed and selected sewage to a 150 cubic meter concentration tank by a mortar pump, and carrying out filter pressing on the concentrated slurry by a belt filter press to obtain a mud cake containing 35% of water, and conveying the mud cake to a brick factory for making bricks.

8. The clarified water of the sedimentation tank is recycled by a sand washer.

The power of the whole construction waste crushing and sorting system can reach 578.5KW, and the whole device can be uniformly operated by a visual control system, so that the device is convenient and fast.

Example 10:

the following is the brick firing system process: fig. 13-16 are combined into a general view of the brick firing system of the present invention.

The production scale of the baked brick manufacturing system is 40 ten thousand baked bricks (discount bricks) produced in daily life. The yield is 14400 ten thousand standard bricks per year according to 360 days of work per year. Wherein, the earlier stage mainly comprises load-bearing perforated bricks; non-bearing hollow bricks can be produced in the later period. The production line can also produce medium-high grade products of other varieties according to the market demands.

The process for producing the sintered brick is complex, requires the raw materials to be fully homogenized and aged, has higher requirements on the performance of the raw materials, has stricter treatment on the raw materials and has higher requirements on equipment. Therefore, the process design emphasizes raw material treatment, green brick forming and drying.

1. Raw material storage and processing

The production line adopts the mixture of combustible carbide slag of household garbage, inorganic matters of household garbage, lime soil of building garbage and waste soil, and part of coal dry stones are filled as raw materials, in order to fully mix and homogenize the raw materials, the production process adopts three-stage crushing by a fine crushing jaw crusher, a hammer crusher and a fine crushing counter roll, wherein the fine crushing counter roll is a domestic turnover, the particle size after initial crushing is controlled below 20mm, the particle size after crushing by the hammer crusher is smaller than 3mm, and the particle size after crushing by the fine crushing counter roll is smaller than 1.5 mm; after being crushed, the mixture enters a double-shaft stirrer for stirring.

The garbage residue soil and the carbonized waste residue are sieved by a filter screen.

The raw materials of the baked brick comprise, by mass, 5% of carbonized slag, 16% of domestic garbage inorganic matter, 13% of construction garbage ash soil, 66% of waste soil, 0.0572% of coal dry stone and the balance of water. 40 million standard bricks are produced every day, the weight of each standard brick raw material is about 2.5kg, 65t of carbide slag, 160t of domestic garbage inorganic matter, 130t of construction garbage soil, 645t of waste soil, 5.7t of coal dry stone and 70t/d of adding water are calculated.

2. Aging warehouse

The raw materials contain certain moisture after being treated, and enter an aging warehouse for aging for 72 hours, so that on one hand, the raw materials are fully homogenized to increase the plasticity of the raw materials; on the other hand, the method has the functions of regulating and buffering the production continuity.

And conveying the aged raw materials to a forming workshop by using a multi-bucket excavator and a belt conveyor.

3. Shaping of

The forming workshop is fed by a box-type feeding machine, and the materials are passed through a stirring extruder and a fine crushing double-roller machine and then fed into a two-stage vacuum brick extruder to be extruded and formed. The main machine adopts a forming device with high vacuum degree and high extrusion pressure. And manually stacking the green bodies on a drying vehicle. The stacked drying vehicle is sent into a tunnel drying chamber through a ferry vehicle-hydraulic pusher.

4. Roasting in ten dry conditions

And (4) the dried dry blank passes through a ferry vehicle, and the top of the dry blank is placed into a roasting kiln by a top vehicle for roasting. The production process is mechanized, has high automation degree, advanced technology, reasonable process, low labor intensity of workers and good product quality, and represents the advanced level of the brick and tile industry in China.

The heat source of the drying chamber comes from a tunnel kiln. The hot drying medium (hot air and hot flue gases) enters the drying chamber from the top and the wet gases are discharged from the bottom of the drying chamber. In order to ensure the quality of the dried green body, the hot gas in the drying chamber is stirred and fed with hot air by a rotary blower, so that the hot air is prevented from being layered, and the temperature distribution in the drying chamber is more uniform. In addition, the drying chamber is equipped with a humidity and temperature monitoring system.

The roasting of the tunnel kiln uses internal fuels such as fly ash or coal gangue and the like. The roasting kiln is of a large-section kiln type, has a suspended ceiling structure, is large in yield, small in section temperature difference and good in heat insulation performance, and is beneficial to production adjustment and control. The baked bricks are conveyed to a finished product line by a ferry vehicle, and the finished products are conveyed to a finished product storage yard after manual sorting.

Example 11:

as shown in fig. 19-20, the present invention also includes a sewage treatment system: from a domestic garbage comprehensive treatment material balance diagram, 30t of leachate is generated; about 34 tons of leachate is generated at 50t/d of kitchen waste; about 6t/d of wastewater is generated in the tar treatment process; considering that a certain amount of percolate is sprayed back in the composting process, the treatment scale of the percolate is considered to be 70t/d preliminarily, and the treated percolate is all used for producing sintered bricks. The treated water reaches the use standard of the baked bricks.

The process of the sewage treatment system comprises the following steps: raw leachate, sand-separating coarse filtration, leachate deodorization and purification, primary precipitation, secondary precipitation, tertiary precipitation and filtration, brick making water (no odor and no visible impurities) and sodium hypochlorite production water.

The sewage treatment system of the present invention comprises:

through taking tertiary sedimentation tank 12 of pump tube coupling buffer memory jar and adjacent setting, one of them sedimentation tank is for receiving the receiving pond of buffer memory jar discharge filtration liquid, is provided with the second between two adjacent sedimentation tanks and separates husky coarse filtration layer 13, all is provided with biological nest filtering layer 15 and three biological nest filtering layer 15 in each sedimentation tank and highly descends along the coarse filtration direction, all be provided with on the tertiary sedimentation tank 12: a water level measuring and sensing device for measuring the depth of the percolate, a water quantity balancing pump for balancing the percolate of each sedimentation tank and a sewage suction pump for sucking away the sludge water of the sedimentation tanks;

the bearing cover plate 20 covers the upper opening of the three-stage sedimentation tank, an electrochemical oxidation device 17, a brine tank 16, an oxidation tank 18 and a plurality of groups of sodium hypochlorite tanks 19 are mounted on the bearing cover plate, an electrode of the electrochemical oxidation device 17 is connected to the oxidation tank 18, the oxidation tank 18 is connected to the final-stage sedimentation tank through a pipeline with a pump, the water inlet end of the oxidation tank is connected to the position below the liquid level of filtered leachate, the collected leachate after partial filtration enters the tank body and is treated by the electrochemical oxidation device 17 to form sodium hypochlorite, the brine tank 16 is connected with the oxidation tank 18 through a pipeline with a pump, and the oxidation tank 18 is connected with the plurality of groups of sodium hypochlorite tanks 19 through a pipeline.

Deodorizing and purifying percolate: the method adopts a mode of directly adding sodium hypochlorite into the percolate for deodorization and purification (properly oxidizing and degrading organic pollutants in the percolate), thereby achieving the purposes of deodorization, promotion of water-slag separation in the percolate, natural precipitation and clarification.

① the sodium hypochlorite adopts the electrochemical oxidation process for treating the high-salinity wastewater, directly firstly, part (about 10% -20%) of the precipitated leachate is treated by the electrochemical oxidation for harmless treatment, and then is recycled into sodium hypochlorite, the sodium hypochlorite is a recycling product, and besides most of the sodium hypochlorite is directly used for deodorization and purification of the leachate, the sodium hypochlorite can also be used for disinfection and deodorization of a garbage disposal site;

② the effective chlorine adding amount in the landfill leachate is designed to be 500-1000 mg/L;

③ calculated according to 70 cubic percolates processed every day, the total amount of daily available chlorine is 35KG-70 KG;

④ the effective chlorine content of the sodium hypochlorite resource product is calculated according to 5000 mg/L, and the total required chlorine content is 7-14 m³。

2. Leachate buffer sedimentation tank

① leachate buffer sedimentation tank is used for deodorization, sedimentation and buffer of leachate;

② Total volume of percolate buffer sedimentation tank is designed to be 3 times of total percolate per day, i.e. 210m³；

③ the percolate buffer sedimentation tank is divided into three (three) stages, and the volume of each tank is 70m³；

④ three pools are adjacent to each other and made of ground-sinking reinforced concrete structure, the inner size of each pool is 5m (length) × 5m (width) × 3.5.5 m (height), and the total floor area of the three pools is about 200m²(20m×10m)；

⑤ if the site is limited, the three tanks can be covered by load-bearing cover plates, the cover plates can bear 7 tons per square meter;

⑥ the three pools are internally and mutually required to be provided with sand-separating coarse filtration, deodorization mixing and settling, sedimentation diversion, water level determination, water quantity balancing pump, sewage suction pump and other devices, and the operation of each device is automatically started or stopped by an automatic control system;

electrochemical oxidation system: the electrochemical oxidation technology is an advanced oxidation technology in the treatment of high-salinity wastewater. The technical core of the electrochemical oxidation treatment process is that through a specially designed electrolytic bath structure and an electrode structure and adopting a special material coating electrode, chloride in wastewater is used as electrolyte, under the action of a direct current pulse power supply, oxidation factors including strong oxidation factors such as hydroxyl free radicals, chlorine dioxide, sodium hypochlorite, nascent oxygen, hydrogen peroxide and the like are generated, most organic pollutants in the wastewater are directly oxidized into carbon dioxide and water at one time, and residual organic matters and intermediate products which cannot be completely oxidized at one time are oxidized and degraded by the direct oxidation of the surface of the electrode and the hydroxyl free radicals.

The electrochemical oxidation technology has two most prominent advantages in the field of salt-containing wastewater treatment:

① No chemical agent is used in the whole treatment process, and no new substance is added.

② can carry out non-selective oxidative decomposition and degradation treatment on pollutants by strong oxidizing property in a very short time, thereby achieving the aims of full amount, harmlessness and zero pollutant discharge.

③ the leachate after treatment can be further treated into resource to obtain sodium hypochlorite which can be used in environmental protection and sanitation fields.

The electrochemical oxidation harmless and resource treatment process design of the percolate:

1. leachate treatment effluent is used for making bricks, and the leachate treatment effluent is required to be odorless and free of impurities, so that harmful gas emission caused by the use of landfill leachate can be avoided in the brick firing process;

2. in order to achieve the above aim, about 10 percent of percolate is subjected to harmless and resource treatment by an electrochemical oxidation technology, and a resource product, namely sodium hypochlorite, is directly used for deodorizing the percolate and promoting water and slag separation in the percolate, and naturally precipitates and clarifies;

3. total volume of about 210m³The leachate buffer pool is divided intoAnd the third stage is mainly used for leachate deodorization, precipitation and caching. The three-stage sedimentation tank carries out automatic equalization through an automatic control system, thereby prolonging the natural sedimentation time of the first two stages to the maximum extent and ensuring the water quantity for brick making under the condition that the water inflow of the percolate is unstable or insufficient;

4. because the water quantity of the percolate entering the pool is seriously unbalanced, two sand-separating, coarse-filtering, oxidizing and deodorizing cache tanks are arranged before the percolate enters the first-stage cache pool, so that sodium hypochlorite can be accurately added in proportion;

5. in order to adapt to the influence of uncertain factors such as uneven water supply of a percolate stock solution, maintenance of an electrochemical oxidation treatment system and the like, a sodium hypochlorite tank which can be used for storing the water for two days is required to be configured;

6. the operations of harmless treatment, resource treatment, ozone removal treatment of leachate stock solution and the like of electrochemical oxidation of about 10 percent of leachate are automatically controlled and completed by a full-automatic control system. The manager only needs to regularly patrol the operation condition of the whole system and complete the work of slag removal, acid pickling hydrochloric acid preparation, salt supplement, cleaning or replacement of each filter and the like according to the system operation prompt.

In the process of leachate treatment and sodium hypochlorite resource production by using an electrochemical oxidation technology, a certain amount of industrial sodium chloride salt is needed (about 3-6 kg of industrial sodium chloride salt is needed for each cubic leachate on average); the whole process requires the consumption of a small amount of hydrochloric acid for pickling the electrode.

Example 12:

fig. 17 is a block diagram of the kitchen waste treatment system according to the present invention, and the kitchen waste treatment system according to the present invention has the following processes:

the kitchen waste is collected by a collecting and transporting vehicle and then transported to a treatment plant, the data is firstly recorded by weighing through a wagon balance, and then the kitchen waste enters a discharging hall at one floor of a pretreatment workshop to be discharged into a raw material bin (the raw material bin has certain storage and heating functions). Kitchen garbage gets into pretreatment systems after the former feed bin is kept in, and pretreatment systems includes preceding separation dewatering system and high-efficient grease piece-rate system. The front sorting system mainly comprises a raw material bin, a bottom screw and filtrate bin of the raw material bin, inclined screw conveying and dewatering equipment, a filtrate conveying pump, a dewatering liquid storage tank and a liquid conveying pump; the processing unit can remove plastic, wood, fabric, ceramic, glass and other foreign matters in the kitchen waste, and the remaining materials enter the high-efficiency oil-water separation system. The efficient oil-water separation system comprises a heating sterilization tank, a three-phase separator, an oil-water temporary storage tank, a delivery pump and other main devices, and can be used for recovering grease in kitchen waste and sterilizing the kitchen waste.

1. The design volume of the discharge chute is 30m³The kitchen waste water treatment device has a certain storage function, and has a heating function compared with other kitchen waste treatment processes, so that the kitchen waste water draining performance is better.

2. The screw for outputting the materials from the discharge chute has the dewatering function of conveying and extruding, and can achieve the purpose of solid-liquid separation without other auxiliary equipment, so that the flow is shortened, the equipment purchasing cost is saved, and the investment is less.

3. The water after being separated is pumped into the heating container tank by a pump after being received by the small tank, so that the mounting height of the three-phase separator is reduced, and the maintenance is more convenient.

4. The three-phase separator has the advantages that the two large heating container tanks are arranged at the front end of the three-phase separator, so that more liquid is collected, the two container tanks are heated alternately, so that the three-phase separator can work continuously, the starting frequency of the three-phase separator is reduced, the three-phase separator only needs to be started and stopped once a day, and the service life of the three-phase separator is prolonged.

Example 13:

fig. 18 is a block diagram showing the structure of the kitchen waste deodorizing system according to the present invention, which comprises the following steps:

the process sprays the mixed liquid of natural plant liquid and water through an atomization system, and the radius of the atomized liquid drop of the mixed liquid is 5-15 mu m through an atomization nozzle. The capsule-shaped nano groups capture odor factors to remove peculiar smell through the hydrophobic acting force of the plant liquid, the natural plant liquid is non-toxic and harmless, and the deodorized final product cannot form secondary pollution. The technology adopts a permeation factor barrier deodorization technology, belongs to a physical method, and has the advantages that in principle, the method is like air washing, pure natural plant liquid is sprayed through an atomization system to capture and wrap odor factors, most of the odor factors in the air are washed, and therefore the purpose of removing odor is achieved.

The permeation factor barrier deodorization technology is plant liquid deodorization technology, and the deodorization liquid is compounded by a series of plant extract. These aromatic organic compounds contain a large number of complex compounds, which are the major components of most vegetable oils.

The plant liquid is sprayed into mist through a special nozzle by high-pressure spraying equipment, and the surfaces of the liquid drops enable the capsule-shaped nano clusters to capture odor factors through hydrophobic acting force, so that the odor molecules in the air can be effectively adsorbed, and the spatial configuration of the adsorbed odor molecules is also promoted to be changed.

The reaction of the plant liquid with the odor molecules can be described in the following aspects: the mixed liquid of the plant liquid is atomized, the radius of the liquid drop which is diffused in the space is between 5 and 15 mu m, and huge surface energy is formed on the surface of the liquid drop, and the surface energy can adsorb odor molecules in the air and change the three-dimensional structure in the odor molecules to be unstable; meanwhile, odor molecules adsorbed on the surface of the liquid drop can also react with oxygen in the air. By the action, odor molecules generate tasteless and nontoxic molecules such as water, inorganic salt and the like, so that the odor is eliminated, and the reaction products do not form secondary pollution.

In conclusion, the engineering adopts a deodorization mode of negative pressure collection and tunnel kiln incineration combined with natural plant liquid spraying. Meanwhile, a bag-type dust removal system is arranged in the building material preparation workshop, and dust generated in the production process is collected and controlled. In order to prevent the deodorization process from being incapable of being realized when the tunnel kiln breaks down, a chemical deodorization tower system is arranged in the engineering and used as an emergency deodorization facility.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a domestic waste solid zero release processing system which characterized in that includes:

2. The domestic waste zero solid emission treatment system according to claim 1, wherein said percolate system is used for filtering out percolate in said waste storage pit by means of filtration.

3. The domestic waste solid zero emission treatment system of claim 1, wherein the feeder is a plate feeder, and the plate feeder is a apron conveyor.

4. The system of claim 1, wherein the pre-sorting system is characterized in that the particle size of the large garbage sorted by the particle size sorting equipment on the pre-sorting system is greater than or equal to 400mm, the particle size of the medium garbage is between 30mm and 400mm, and the particle size of the small garbage is less than or equal to 30 mm.

5. The system of claim 1, wherein the crushing mechanism of the bag breaking machine can crush unopened plastic bags and break up sundries adhered to the plastic bags, and can crush organic matters with a particle size of more than 60mm to below 60 mm.

6. The system of claim 1, wherein the comprehensive winnowing machine has a 60mm mesh opening diameter of a section of the drum screen close to the feeding end of the drum screen device, and a 40mm mesh opening diameter of a section of the drum screen device far away from the feeding end of the drum screen device.

7. The household garbage solid zero-emission treatment system according to claim 1, wherein the inward convex structure is formed by distributing a plurality of shoveling plates on the whole inner wall of the drum screen device and combining the shoveling plates to form a spiral structure.

8. The system of claim 7, wherein the main component of the light material is plastic, the plastic which can be granulated and separated by the light separator is PP plastic and PE plastic, and the PP plastic and the PE plastic are conveyed to the plastic granulating system.

9. The system of claim 1, wherein the first combustible material separated from the heavy materials is further crushed by a crushing device for a plurality of times before being delivered to the anaerobic carbonization system, and the crushed third combustible mixture is then dried by a drying device and finally delivered to the anaerobic carbonization system.

10. The domestic waste solid zero-emission treatment system of claim 9, wherein the heavy material is waste with a combustible component as a main component, the heavy material is greater than or equal to 60mm, the waste is subjected to artificial intelligence sorting and specific gravity sorting to remove non-combustible components, the combustible components are subjected to primary crushing to crush the first combustible material to a particle size of less than 50mm, and the particle size of the first combustible material is subjected to secondary crushing and tertiary crushing to a particle size of less than 30 mm.

11. The system of claim 9, wherein the drying device is provided with a storage bin, a first conveyor, a pre-drying line, a second conveyor, a temporary storage bin, a third conveyor, a dryer, a fourth conveyor and a drying bin along the feeding direction to the discharging direction; the third combustible mixture after multiple crushing enters a storage bin which is provided with a distributor for sending the third combustible mixture into the pre-drying line through the first conveyor, the pre-drying line is provided with a dryer for drying the third combustible mixture until the moisture content is below 20%, the heat source of the kiln is sent out by the brick firing system through a pipeline, the third combustible mixture after primary drying is sent into a temporary storage bin through the second conveyor, the third conveyor conveys the third combustible mixture in the temporary storage bin into the dryer, and the dryer dries the third combustible mixture after passing through for the second time, the heat sources of the kiln furnace and the heating system are the kiln furnace heat source sent out by the brick firing system through pipelines, the moisture ratio of the third combustible mixture dried by the dryer is less than 5%, and the fourth conveyor sends the secondarily dried third combustible mixture into the dry bin.

12. The domestic waste zero solid emission treatment system of claim 1, wherein the composting fermentation system comprises:

13. The system of claim 12, wherein the fermentation chambers are primary fermentation chambers, air ducts and percolate drainage guide channels are arranged at the bottom of the fermentation chambers, the air ducts are connected with air blowers, one end of each air duct is connected to the inner cavity of the primary fermentation chamber, the other end of each air duct is connected with a biofilter, the liquid inlet end of the percolate drainage guide channel is connected to the bottom filtering portion of the primary fermentation chamber, percolate generated in the garbage fermentation process enters the percolate drainage guide channel through the bottom filtering portion, and the percolate drainage guide channel guides the percolate to a sewage pool.

14. The system of claim 13, wherein the sewage tank is provided with a sewage pump, the water outlet end of the sewage pump is connected to the spraying device through a pipeline, and the water content of 40-60% required by composting is adjusted through the spraying device on the top of the fermentation bin;

when the water content of the mixture is lower than 40%, a sewage pump is started to pump out water in a sewage pool and uniformly spray the water back to the primary fermentation bin;

15. The domestic waste zero solid discharge treatment system of claim 12, wherein the compost fermentation system further comprises an impurity removal and heavy metal removal system, the impurity removal and heavy metal removal system comprising:

16. The system of claim 15, wherein the system for removing impurities and heavy metals further comprises:

17. The system of claim 1, wherein the plastic pelletizing system comprises:

18. The system of claim 17, wherein the crusher of the crushing section is a high-speed single-shaft crusher, and an in-machine water spraying device is arranged in the high-speed single-shaft crusher to realize the primary separation of the pelletizable plastic and the attachments on the pelletizable plastic;

19. The system of claim 1, further comprising a crushing system disposed on the conveyor line at the feed end of the anaerobic carbonization system, the crushing system comprising:

20. The system of claim 1, wherein the front section of the anaerobic carbonization system is a drying device, which comprises:

21. The domestic waste zero emission treatment system of claim 20, wherein the non-condensable gas treatment system comprises:

22. The system of claim 1, further comprising a tar treatment system, wherein the tar treatment system comprises:

23. The domestic waste zero emission treatment system of claim 1, wherein the brick firing system comprises:

the pre-positioned double-shaft mixer is used for receiving the raw materials screened by the rotary screen, a conveyer between the pre-positioned double-shaft mixer and the rotary screen is used for receiving the dust filtered by the dust remover, and the upper part of the pre-positioned double-shaft mixer is also connected with a first automatic water distribution device which is connected with the water after sewage treatment;

the rear double-shaft stirrer is used for receiving the secondary fine crushed raw materials output by the rear double-roller machine, and is also connected with a second automatic water distribution device, the rear double-shaft stirrer is used for stirring the secondary fine crushed raw materials, and the second automatic water distribution device is connected with water after sewage treatment;

24. The household garbage solid zero-emission treatment system according to claim 1, further comprising a kitchen garbage treatment system, wherein the kitchen garbage treatment system comprises:

25. The system of claim 24, wherein the kitchen waste treatment system further comprises a kitchen waste deodorization system, the kitchen waste deodorization system sprays a mixed solution of natural plant liquid and water through an atomization system, the mixed solution is sprayed through an atomization nozzle to form atomized liquid droplets, and the capsule-shaped nanoclusters capture odor factors through the hydrophobic acting force of the plant liquid to remove odor in the kitchen waste.

26. The system of claim 25, wherein the kitchen waste deodorization system comprises:

the system comprises a water softening device (2), an energy storage tank (3), a double-filtering device (6), a three-way proportional proportioning pump (8) with two liquid inlets and one liquid outlet and a high-pressure pump (9) which are connected in sequence through pipelines, wherein the water softening device (2) is connected to a water inlet pipe;

the salt bucket (1) is used for containing salt water, is connected to the bottle body of the water softening equipment (2) and is mixed with the incoming tap water, and the mixed salt water is softened and output to the energy storage tank (3);

the medicine barrel (11) is filled with liquid medicine, a liquid level sensor (111) and a filter bag (112) are arranged in the medicine barrel (11), the liquid level sensor (111) is used for sensing the liquid level height of the liquid medicine in the medicine barrel (11), the filter bag (112) is arranged at the water inlet of the liquid outlet pipe and is arranged below the liquid level of the liquid medicine, and the other end of the liquid outlet pipe is connected to a liquid inlet of the proportion proportioning pump (8);

the deodorization system comprises a deodorization system pipeline (10) and a spraying device, wherein the liquid inlet end of the deodorization system pipeline (10) is connected to the liquid outlet of the high-pressure pump (9), a switching valve is arranged on the body of the deodorization system pipeline (10), an air compressor (4) is connected to a pipeline node between the switching valve and the high-pressure pump (9) through a pipeline, a drain pipe is arranged on a pipeline node between the liquid outlet of the proportional proportioning pump (8) and the high-pressure pump (9), and a drain valve is arranged on the drain pipe;

and the automatic control box is used for controlling the work of the air compressor (4), the high-pressure pump (9) and the liquid level sensor (111).

27. The domestic waste zero solid discharge treatment system of claim 2, wherein the sewage treatment system comprises:

through taking tertiary sedimentation tank (12) of pump tube coupling buffer memory jar and adjacent setting, the receiving pond of one of them sedimentation tank for receiving buffer memory jar discharge filtration liquid is provided with the second between two adjacent sedimentation tanks and separates husky coarse filtration layer (13), all is provided with biological nest filtering layer (15) and three biological nest filtering layer (15) in each sedimentation tank and highly degressively follows the coarse filtration direction, all be provided with on tertiary sedimentation tank (12): a water level measuring and sensing device for measuring the depth of the percolate, a water quantity balancing pump for balancing the percolate of each sedimentation tank and a sewage suction pump for sucking away the sludge water of the sedimentation tanks;

bearing apron (20), the last mouth of tertiary sedimentation tank is located to the lid, installs electrochemical oxidation device (17), salt solution jar (16), oxidation jar (18) and multiunit sodium hypochlorite jar (19) on it, the electrode connection of electrochemical oxidation device (17) is to oxidation jar (18), oxidation jar (18) are connected to the final stage sedimentation tank and are intake the end through taking the pump pipeline and insert below the filtration liquid level after filtering, and it collects the filtration liquid entering jar body after the partial filtration and passes through electrochemical oxidation device (17) are handled and are formed the sodium hypochlorite, salt solution jar (16) are through taking the pump pipe coupling oxidation jar (18), oxidation jar (18) are through taking the pump pipe coupling multiunit sodium hypochlorite jar (19).