CN212442523U - Wet rubbish rapid decrement processing system - Google Patents

Wet rubbish rapid decrement processing system Download PDF

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CN212442523U
CN212442523U CN202022041608.2U CN202022041608U CN212442523U CN 212442523 U CN212442523 U CN 212442523U CN 202022041608 U CN202022041608 U CN 202022041608U CN 212442523 U CN212442523 U CN 212442523U
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air
outlet
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王亚骏
孙刚范
刘道广
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Shanghai Techase Environment Protection Co ltd
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Shanghai Techase Environment Protection Co ltd
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Abstract

The utility model discloses a quick decrement processing system of wet rubbish. The system comprises crushing equipment, squeezing equipment, drying equipment, an active air generator, a blower and filtering equipment; the outlet of the crushing equipment is connected with the inlet of the squeezing equipment; a solid filter residue outlet of the squeezing device is connected with a solid filter residue inlet of the drying device, and a filtrate outlet of the squeezing device is connected with a filtrate inlet of the filtering device; the outlet of the active air generator is connected with the inlet of the blower; the outlet of the blower is connected with the drying equipment and the filtering equipment. The utility model utilizes the active air generator to generate active oxygen with extremely high activity under the condition of high-voltage discharge; the solid filter residue or filtrate reacts with active air in drying equipment or filtering equipment for a period of time, active oxygen can destroy cell walls of organic matters and react with water to quickly generate hydroxyl free radicals with extremely strong oxidability, so that the organic matters are quickly oxidized and degraded, the treatment time of the organic garbage can be greatly shortened, and secondary pollution can not be caused.

Description

Wet rubbish rapid decrement processing system
Technical Field
The utility model belongs to the technical field of wet refuse treatment, a quick decrement processing system of wet rubbish is related to.
Background
With the continuous push of garbage classification work, the treatment method of classified garbage is receiving more and more attention, wherein the treatment method of wet garbage is a research hotspot.
The wet garbage is also called kitchen garbage and organic garbage, and is a general name of perishable biological domestic wastes such as food material waste, leftovers, overdue food, melon peel and fruit stone, green plants of flowers, traditional Chinese medicine dregs and the like. The wet garbage is mainly generated in activities such as daily life and food processing, food service, unit catering and the like of residents, and comprises abandoned vegetable leaves, leftovers, fruit peels, eggshells, tea residues, bones, animal viscera, fish scales, leaves, weeds and the like, and the main sources of the wet garbage are household kitchens, restaurants, dining halls, markets and other industries related to food processing.
The wet garbage has the characteristics of rich organic matter content, high water content, easy decay and the like, the properties and the smell of the wet garbage can cause bad influence on environmental sanitation, and harmful substances such as pathogenic microorganisms, mycotoxin and the like can be easily grown. If the treatment is improper, the urban appearance is influenced, the environment and the water body are polluted, and the human health is harmed.
Along with the improvement of the living standard of people, the discharge amount of wet garbage is increased day by day, and a large amount of wet garbage brings about a serious pollution problem and causes huge waste. How to efficiently realize the harmlessness and the reclamation of wet garbage is a technical problem to be solved at present.
At present, the wet garbage treatment method mainly comprises a physical method, a chemical method, a biological method and the like, the related treatment technologies comprise landfill, incineration, composting, fermentation and the like, and the traditional methods can realize the recycling of the wet garbage to a certain extent, but all have limitations.
The landfill occupies and pollutes a large amount of land, and generates a large amount of percolate, malodorous gas and greenhouse gas, the method can only eliminate wet garbage and can not realize the recycling of the wet garbage, so the landfill rate of the wet garbage shows a descending trend. Wet garbage has high water content, low heat value and low calorific value during incineration, and meanwhile, incineration equipment has high requirements and needs to be equipped with flue gas treatment equipment, so that the incineration faces the problems of high investment, high operation cost, long recovery period and the like. The compost fertilizer quality is not high, and meanwhile, the higher quality compost mode has higher cost and difficult popularization. The method has the advantages of large fermentation investment, high biogas slurry treatment cost, physical separation or crushing, high cost, low recovery rate and long operation period, and limits the popularization of the method.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art's not enough, provide a quick, high-efficient decrement processing system and processing method suitable for wet rubbish, a quick decrement processing system of wet rubbish promptly.
The utility model aims at realizing through the following technical scheme:
the utility model relates to a wet garbage rapid decrement treatment system, which comprises a crushing device, a squeezing device, a drying device, an active air generator, a blower and a filtering device; the outlet of the crushing equipment is connected with the inlet of the squeezing equipment; a solid filter residue outlet of the squeezing device is connected with a solid filter residue inlet of the drying device through a solid conveying pipeline, filter residues are conveyed to the drying device for drying, and meanwhile, a filtrate outlet of the squeezing device is connected with a filtrate inlet of the filtering device through a liquid conveying pipeline, and filtrate is conveyed to the filtering device for filtering; the outlet of the active air generator is connected with the inlet of the blower through a pipeline, and the generated active air is mixed with the outside air and then is conveyed to the inlet of the blower; the blower is used for respectively conveying mixed air of active air and outside air to the drying system and the filtering system; the outlet of the air blower is connected with the drying equipment through a pipeline, and the outlet of the air blower is also connected with the filtering equipment through a pipeline;
the top of the drying device is provided with a solid filter residue inlet, and the bottom of the drying device is provided with a dried waste residue outlet; the lower part of one side of the drying equipment is provided with a mixed air inlet of active air and outside air, and the top of the other side of the drying equipment is provided with a water-air outlet; the outlet of the blower is connected with the mixed air inlet of the active air and the outside air of the drying equipment through a pipeline; a stirrer is arranged in the drying equipment;
drying the solid filter residue to obtain harmless waste residue, and carrying out external treatment; the filter equipment is provided with a filtrate inlet, a clear liquid outlet and an air pipeline for aeration, the air pipeline for aeration is connected with an outlet of the air blower, and mixed air of active air and outside air is sent into the filter equipment; filtering the filtrate by a filter device to obtain clear liquid, and discharging the clear liquid through a pipeline after the clear liquid reaches the standard;
the active air generator comprises a cuboid shell, wherein an air inlet is formed in the top of the cuboid shell, and an air outlet is formed in the bottom of the cuboid shell; a metal filter screen is arranged at the air inlet; a fan is arranged in the cuboid shell and below the air inlet, and the fan is fixed on the shell; a cylindrical discharge chamber is arranged below the fan; the lower end of the discharge chamber is connected with a cylindrical electromagnetic induction chamber; the lower part of the discharge chamber is reduced; the cylinder diameter of the electromagnetic induction chamber is smaller than that of the discharge chamber; in the discharge chamber, a discharge needle is arranged at the upper part, and an annular metal coil is arranged at the lower part; an electromagnetic coil is wound outside the electromagnetic induction chamber; the tail parts of the discharge needle and the annular metal coil penetrate through the cylindrical wall of the over-discharge chamber and are connected with a high-voltage direct-current power supply; the discharge needle is connected with the negative electrode of the high-voltage direct-current power supply, and the annular metal coil is connected with the positive electrode of the high-voltage direct-current power supply.
Further, a cylindrical discharge chamber is arranged below the fan; the lower end of the discharge chamber is connected with a cylindrical electromagnetic induction chamber; the diameter of the lower part of the discharge chamber is reduced; the diameter of the cylinder of the electromagnetic induction chamber is smaller than that of the cylinder of the discharge chamber; in the cylinder of the discharge chamber, the upper part is provided with a discharge needle, and the lower part is provided with an annular metal coil; an electromagnetic coil is wound outside the cylinder of the electromagnetic induction chamber.
Furthermore, the discharge chamber is made of ABS or polyvinyl chloride; the electromagnetic induction chamber is made of copper, aluminum or titanium. The output voltage of the high-voltage direct-current power supply of the active air generator is DC 5000V.
The active air generator ionizes air under the condition of high-voltage discharge, and the air is electrified under the action of a magnetic field to generate active air with extremely high activity. The working principle of the active air generator is as follows: when the active air generator (generating device) works, the fan operates to introduce the external air into a discharge chamber in the generating device; in the vicinity of the discharge needles in the discharge chamber, the air is ionized; after air enters the electromagnetic induction chamber, charged particles in the ionized air are excited by the electromagnetic field resonance of the electromagnetic coil; the charged particles excited by the electromagnetic field resonance of the electromagnetic coil enter the outer layer orbit of the oxygen molecules to form active oxygen with extremely high activity.
Furthermore, the drying equipment comprises a rectangular box body, and a solid filter residue inlet (a feed hopper) is arranged at the top of the box body; a transversely arranged rotatable stirring shaft is arranged in the box body through a bearing; a plurality of stirring blades are arranged on the stirring shaft; one side of the box body close to the bottom is provided with a mixed air inlet of active air and outside air; the other side of the box body close to the top is provided with a water vapor outlet; the other side of the box body is provided with a dried waste residue outlet (discharge hole) near the bottom.
The drying equipment has the following working principle: the squeezed solid filter residue enters the drying equipment box body from a top feeding hopper (a solid filter residue inlet), the mixed gas of active air and outside air enters the drying equipment from an air inlet (a mixed air inlet of the active air and the outside air) through an air blower, the solid filter residue and the active air are stirred and reacted in the drying equipment for a period of time, the active air can destroy cell walls of organic matters in the filter residue, the organic matters in the filter residue are oxidized into water, carbon dioxide or mineral matters, further dehydration and drying of the filter residue are facilitated, and water vapor is discharged through an exhaust port (a water-gas outlet). And finally, obtaining dried solid waste slag, moving the dried solid waste slag out of the drying equipment through a discharge port (waste slag outlet), and carrying out external treatment.
Further, the blower is provided with a heating function or is connected with a heating device.
Further, the filtering equipment adopts an MBR (membrane bioreactor) filter tank (namely an aeration biological filter tank); and an air pipeline for aeration is arranged at the bottom of the MBR filter tank of the filtering equipment and is connected with an outlet of the air blower.
Further, the crushing plant is a geared crusher; the crushing equipment comprises coarse crushing and wall-breaking crushing. The number of crushing devices may be one or more.
Further, the pressing device is a screw press, and the pressing assembly of the pressing device is a screw pressing assembly.
The wet garbage rapid decrement processing method by utilizing the wet garbage rapid decrement processing system comprises the following steps:
a crushing step: after sorting and impurity removing are carried out on the wet garbage, crushing treatment is carried out by using crushing equipment.
Preferably, the crushing step comprises coarse crushing and wall-breaking crushing of the wet garbage.
(II) squeezing: and squeezing the crushed wet garbage by squeezing equipment to obtain solid filter residue and filtrate.
(III) active air generation step: the active air generator generates active oxygen with extremely high activity through high-voltage discharge, and the active air containing the active oxygen is mixed with the outside air and then is respectively introduced into the drying equipment and the filtering equipment through the air blower.
Further, in the active air generating step, the output voltage of the high voltage direct current power supply of the active air generator is DC 5000V.
Further, the heating temperature of the air blower is 30-150 ℃; the higher the temperature is, the more beneficial the moisture removal is, the better the drying effect is, but the energy consumption is increased, so that the proper temperature needs to be selected according to the actual situation.
(IV) drying: after the solid filter residue and active air are stirred and reacted for a period of time in drying equipment, the solid filter residue is subjected to oxidative degradation and deodorization, and is dehydrated and dried to finally obtain harmless solid waste residue which is transported for treatment.
Further, the temperature of the drying step is controlled to be 60-80 ℃.
And in the drying step, the organic matters in the filter residue are oxidized into water, carbon dioxide or mineral substances.
(V) a filtering step: and reacting the squeezed filtrate with active air in a MBR (membrane bioreactor) filter tank of the filtering equipment, and filtering by the MBR filter tank to finally obtain clear liquid which can reach the standard and be discharged.
The filtering step oxidizes the organics in the filtrate to water, carbon dioxide, or minerals.
The utility model has the advantages that:
compared with the prior art, the utility model, have following advantage:
1. the wet garbage is subjected to solid-liquid separation through the processes of crushing, squeezing and the like, and filter residue and filtrate are obtained. Drying the filter residue to obtain harmless residue, transporting the residue outside, and filtering the filtrate to reach the discharge standard. The wet garbage is respectively treated by solid-liquid separation, so that the decomposition efficiency of organic matters can be improved, and the recycling of the wet garbage is facilitated.
2. The utility model discloses an introduce active air generating equipment, can produce the high active oxygen of activity under the high-pressure discharge condition. Solid filter residues and active air are stirred and reacted for a period of time in drying equipment, filtrate and the active air are reacted for a period of time in filtering equipment, active oxygen can destroy cell walls of organic matters, the organic matters are easy to oxidize and degrade, simultaneously, the active oxygen and the water react to quickly generate hydroxyl radicals with strong oxidizability, the hydroxyl radicals are the strongest chemical oxides capable of instantly finishing dehydrogenation reaction and hydrolysis of the organic matters, and the organic matters can be oxidized into carbon dioxide, water or mineral salts without selection. The technology is beneficial, the treatment time of the organic garbage can be greatly shortened, and secondary pollution can not be caused.
3. The utility model discloses a to the scientific design of equipment and technology, can realize the continuous processing to wet rubbish, whole processing procedure does not have the production of poisonous and harmful substance, and equipment fault rate is low, the high-efficient safety of refuse disposal.
4. Because the organic matters in the wet garbage are finally oxidized into carbon dioxide, water or mineral salts, the diffusion of peculiar smell in the wet garbage is effectively avoided.
5. The treatment of the filter residue and the filtrate is carried out at a lower temperature, and compared with the traditional treatment method, the method has the advantages of lower energy consumption and greatly reduced production cost.
Drawings
FIG. 1 is a flow chart of the operation of the wet garbage rapid decrement treatment system of the present invention;
fig. 2 is a schematic structural diagram (equipment composition diagram) of a wet garbage rapid decrement treatment system according to the present invention;
fig. 3 is a schematic view of the structure of the active air generator of the present invention;
fig. 4 is a schematic structural view of a drying apparatus according to the present invention.
Reference numbers in the figures: 1. the device comprises a wet garbage can 2, a crushing device 3, a squeezing device 4, a drying device 5, waste residues 6, a residue transport vehicle 7, an active air generator 8 air blower 9, an MBR filter tank 10, a discharge pipeline 11, an air inlet 12, a fan 13, a discharge chamber 14, a discharge needle 15, an annular metal coil 16, an electromagnetic induction chamber 17, an electromagnetic coil 18, an air outlet 19, a cuboid shell 20, an air pipeline 21 for aeration, a mixed air inlet 22 of active air and outside air, a stirring shaft 23, stirring blades 24, a solid residue inlet 25, a water vapor outlet 26, a cuboid box body 27 and a dried waste residue outlet
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
Example 1
As shown in fig. 1 and 2, the utility model relates to a wet garbage rapid decrement treatment system, which comprises a crushing device 2, a squeezing device 3, a drying device 4, an active air generator 7, a blower 8 and a filtering device (an MBR filter 9); the outlet of the crushing device 2 is connected with the inlet of the squeezing device 3; a solid filter residue outlet of the squeezing device 3 is connected with a solid filter residue inlet of the drying device 4 through a solid conveying pipeline, filter residues are conveyed to the drying device 4 for drying, meanwhile, a filtrate outlet of the squeezing device 3 is connected with a filtrate inlet of the filtering device (MBR filter 9) through a liquid conveying pipeline, and filtrate is conveyed to the filtering device (MBR filter 9) for filtering; the outlet of the active air generator 7 is connected with the inlet of the blower 8 through a pipeline, and the generated active air is mixed with the outside air and then is conveyed to the inlet of the blower 8; the blower 8 has a heating function; the blower 8 respectively conveys the mixed air of the active air and the outside air to a drying system (drying equipment 4) and a filtering system (MBR filter 9); the top of the drying device 4 is provided with a solid filter residue inlet 24, and the bottom is provided with a dried waste residue outlet 27; the lower part of the side surface of the drying device 4 is provided with a mixed air inlet 21 of active air and outside air, and the top of the drying device is provided with a water vapor outlet 25; the outlet of the blower 8 is connected with a mixed air inlet 21 of the active air and the outside air of the drying device 4 through a pipeline; the solid filter residue is dried to become harmless waste residue 5, and is transported outside by a slag transport vehicle 6; the filtering equipment (MBR filter 9) is provided with a filtrate inlet and a clear liquid outlet, and is also provided with an air pipeline 20 (aeration pipeline) for aeration, the air pipeline 20 for aeration is connected with the outlet of the air blower 8, and the mixed air of active air and outside air is sent into the filtering equipment (MBR filter 9); the air pipeline 20 for aeration extends into the bottom of the MBR filter 9 directly, is bent by 90 degrees and is laid on the bottom of the MBR filter 9, and a plurality of aeration holes are arranged on an aeration pipeline laid on the bottom of the MBR filter 9; the filtrate is filtered by a filter (MBR filter 9) to become clear liquid, and the clear liquid is discharged through a discharge pipeline 10 after reaching the standard.
The crushing plant 2 is a geared crusher (gear crusher); the crushing equipment 2 is provided with two crushing equipment, one is rough crushing equipment, and the other is broken wall crushing equipment.
The pressing device 3 is a screw press, and the pressing component of the pressing device 3 is a screw pressing component.
As shown in fig. 3, the active air generator 7 includes a rectangular parallelepiped housing 19, on the rectangular parallelepiped housing 19, an air inlet 11 is provided at the top, and an air outlet 18 is provided at the bottom; a metal filter screen is arranged at the air inlet; a fan 12 is arranged below the air inlet in the cuboid shell 19 and fixed on the shell; a cylindrical discharge chamber 13 is arranged below the fan; the lower end of the discharge chamber 13 is connected with a cylindrical electromagnetic induction chamber 16; the diameter of the lower part of the discharge chamber 13 is reduced; the diameter of the cylinder of the electromagnetic induction chamber 16 is smaller than that of the discharge chamber 13; a discharge needle 14 is arranged at the upper part in the cylinder of the discharge chamber 13, and an annular metal coil 15 is arranged at the lower part; an electromagnetic coil 17 is wound around the outside of the cylinder of the electromagnetic induction chamber 16. The cylindrical material of the discharge chamber 13 is ABS or polyvinyl chloride; the cylinder material of the electromagnetic induction chamber 16 is copper, aluminum or titanium. The tail parts of the discharge needle 14 and the annular metal coil 15 both penetrate through the cylindrical wall of the over-discharge chamber 13 and are connected with a high-voltage direct-current power supply; the discharge needle 14 is connected with the negative electrode of the high-voltage direct-current power supply, and the annular metal coil 15 is connected with the positive electrode of the high-voltage direct-current power supply. The output voltage of the high voltage direct current power supply of the active air generator 7 is DC 5000V.
The active air generator 7 ionizes air under the condition of high-voltage discharge, and charges the air under the action of a magnetic field to generate active air with extremely high activity. Working principle of the active air generator 7: when the active air generator 7 (generating device) works, the fan operates to introduce the outside air into the discharge chamber in the generating device; in the vicinity of the discharge needles in the discharge chamber, the air is ionized; after air enters the electromagnetic induction chamber, charged particles in the ionized air are excited by the electromagnetic field resonance of the electromagnetic coil; the charged particles excited by the electromagnetic field resonance of the electromagnetic coil enter the outer layer orbit of the oxygen molecules to form active oxygen with extremely high activity.
As shown in fig. 4, the drying apparatus 4 includes a rectangular box 26, and a solid residue inlet 24 (feed hopper) is provided at the top of the box; a transversely arranged rotatable stirring shaft 22 is arranged in the box body through a bearing; a plurality of stirring paddles are vertically connected to the stirring shaft 22, and each stirring paddle is provided with a stirring blade 23; a mixed air inlet 21 for active air and outside air is arranged at one side of the box body close to the bottom; the other side of the box body close to the top is provided with a water vapor outlet 25; the other side of the box body is provided with a dried waste residue outlet 27 (discharge hole) near the bottom.
The working principle of the drying device 4 is as follows: the squeezed solid filter residue enters the drying equipment box body from the top feeding hopper (a solid filter residue inlet 24), the mixed gas of active air and outside air enters the drying equipment 4 from the air inlet (a mixed air inlet 21 of the active air and the outside air) through the air blower 8, the solid filter residue and the active air are stirred and reacted in the drying equipment 4 for a period of time, the active air can destroy cell walls of organic matters in the filter residue, the organic matters in the filter residue are oxidized into water, carbon dioxide or mineral matters, further dehydration and drying of the filter residue are facilitated, and water vapor is discharged through the air outlet (a water-gas outlet 25). And finally, obtaining dried solid waste, moving out of the drying equipment 4 through a discharge port (waste outlet 27), and carrying out external treatment.
Example 2
The utility model relates to an utilize embodiment 1 wet rubbish rapid decrement processing method that quick decrement processing system of wet rubbish goes on, including following step:
a crushing step: after sorting and impurity removing, the wet garbage is crushed by a crushing device 2 (a crusher with a gear).
The crushing step comprises coarse crushing and wall-breaking crushing of the wet garbage.
(II) squeezing: and squeezing the crushed wet garbage by a squeezing device (a screw press) to obtain solid filter residue and filtrate.
(III) active air generation step: the active air generator 7 generates active oxygen with extremely high activity through high-voltage discharge, and the active air containing the active oxygen is mixed with outside air and then is respectively introduced into the drying equipment 4 and the filtering equipment (MBR filter 9) through the air blower 8.
In the active air generating step, the output voltage of the high voltage direct current power supply of the active air generator 7 is DC 5000V.
The blower 8 is provided with a heating function or is connected with a heating device. The heating temperature of the blower 8 was 120 ℃.
(IV) drying: after the solid filter residue and the active air are stirred and reacted for a period of time in the drying equipment 4, the solid filter residue is oxidized, degraded, deodorized, dehydrated and dried to finally obtain solid waste residue which is transported for treatment.
The temperature of the drying step is controlled to be 60-80 ℃.
And in the drying step, the organic matters in the filter residue are oxidized into water, carbon dioxide or mineral substances. The specific mechanism is as follows:
in the drying device 4, solid filter residues and active air are stirred and react in the drying device 4 for a period of time, and two functions are generated: (1) the active air destroys cell walls of organic matters in the filter residue, so that the organic matters are easy to be oxidized and degraded; (2) the active oxygen reacts with a small amount of water in the filter residue to quickly generate hydroxyl free radicals with strong oxidizability, the hydroxyl free radicals are the strongest chemical oxides capable of instantly finishing dehydrogenation reaction and hydrolysis of organic matters, and the organic matters in the filter residue are oxidized into water, carbon dioxide or mineral substances; thereby the solid filter residue is oxidized, degraded and deodorized.
(V) a filtering step: the squeezed filtrate reacts with active air in an MBR (membrane bioreactor) filter 9, and clear liquid finally obtained can reach the standard and be discharged after being filtered by the MBR filter 9 (aeration biological filter).
The filtering step oxidizes the organics in the filtrate to water, carbon dioxide, or minerals. The specific mechanism is as follows:
in the filtering equipment (MBR filter 9), (1) the active air destroys cell walls of organic matters in the filtrate, so that the organic matters are easy to be oxidized and degraded; (2) the active oxygen reacts with a large amount of water in the filtrate to quickly generate hydroxyl free radicals with extremely strong oxidizability, the hydroxyl free radicals are the strongest chemical oxides capable of instantly finishing dehydrogenation reaction and hydrolysis of organic matters, and the organic matters in the filtrate can be indiscriminately oxidized into carbon dioxide, water or mineral salts. Thereby deodorizing the filtrate by oxidative degradation.
An MBR filter tank 9, namely an MBR membrane bioreactor, is a novel wastewater treatment system combining a membrane separation technology and a biological treatment technology, and mainly utilizes membrane separation equipment immersed in an aerobic biological tank to intercept activated sludge and macromolecular organic matters in a tank. The MBR filter 9 was operated according to the conditions shown in the following table:
Figure BDA0002687217690000081
Figure BDA0002687217690000091
wherein MLSS is the sludge concentration of the activated sludge in the aeration tank. DO is dissolved oxygen.
Example 3 application example
Taking vegetable field wet garbage (comprising vegetable leaves, bean dregs, cane shoots and the like) as raw materials, utilizing the wet garbage rapid reduction treatment system in the embodiment 1, continuously treating filtrate obtained after treatment in the step (one) of crushing and the step (two) of squeezing in the wet garbage rapid reduction treatment method in the embodiment 2 for 20 hours according to the operation conditions by adopting an MBR (membrane bioreactor) filter in the method in the step (five) of filtering, and obtaining clear liquid. The detection data of the clear liquid sample are as follows:
test sample Unit of The result of the detection
Chemical Oxygen Demand (COD) mg/L 465
Biochemical oxygen demand mg/L 142
Total nitrogen mg/L 42.7
Total phosphorus mg/L 1.21
Suspended matter mg/L 189
Soluble Total solids mg/L 986
Animal and vegetable oil mg/L 0.81
Color intensity Degree of rotation 7
pH value / 7.58
Comparative example (comparison of drying treatment and conventional Biochemical treatment in the present invention)
The method comprises the steps of taking vegetable field wet garbage (comprising vegetable leaves, bean dregs, cane shoots and the like) as raw materials, utilizing the wet garbage rapid reduction treatment system in the embodiment 1, and carrying out pretreatment according to the crushing step (i) and the squeezing step (ii) in the wet garbage rapid reduction treatment method in the embodiment 2 to obtain filter residues (with the water content of about 80%).
100kg of the filter residue is added into the drying equipment of the wet garbage rapid decrement treatment system, and the drying equipment runs for 24 hours at 60 ℃ to obtain dehydrated waste residue.
100kg of the same filter residue is added into the traditional biochemical treatment equipment (a microbial aerobic fermentation tank) and is operated for 72 hours at the temperature of 60 ℃, so that the fermented waste material is obtained.
The results of comparing the two processes are as follows:
Figure BDA0002687217690000101
the above comparison experiment results show that the drying treatment in the utility model utilizes the active air to destroy the cell walls of the organic matters in the filter residue, which is beneficial to the removal of cell water, further reduces the water content of the waste residue, and meanwhile, the active air can oxidize the organic matters in the filter residue into water, carbon dioxide or mineral matters, and the reduction degree is obvious; compared with the traditional biochemical method, the method has the advantages that the water in the filter residue is easier to remove, so the treatment time is greatly shortened, the treatment temperature is also reduced, and the overall energy consumption is lower.

Claims (8)

1. A wet garbage rapid decrement processing system is characterized by comprising crushing equipment, squeezing equipment, drying equipment, an active air generator, a blower and filtering equipment; the outlet of the crushing equipment is connected with the inlet of the squeezing equipment; a solid filter residue outlet of the squeezing device is connected with a solid filter residue inlet of the drying device through a solid conveying pipeline, and a filtrate outlet of the squeezing device is connected with a filtrate inlet of the filtering device through a liquid conveying pipeline; the outlet of the active air generator is connected with the inlet of the blower through a pipeline; the outlet of the air blower is connected with the drying equipment through a pipeline, and the outlet of the air blower is also connected with the filtering equipment through a pipeline;
the top of the drying device is provided with a solid filter residue inlet, and the bottom of the drying device is provided with a dried waste residue outlet; the lower part of one side of the drying equipment is provided with a mixed air inlet of active air and outside air, and the top of the other side of the drying equipment is provided with a water-air outlet; the outlet of the blower is connected with the mixed air inlet of the active air and the outside air of the drying equipment through a pipeline; a stirrer is arranged in the drying equipment;
the filtering equipment is provided with a filtrate inlet, a clear liquid outlet and an air pipeline for aeration; the air pipeline for aeration is connected with the outlet of the blower;
the active air generator comprises a cuboid shell, wherein an air inlet is formed in the top of the cuboid shell, and an air outlet is formed in the bottom of the cuboid shell; a metal filter screen is arranged at the air inlet; a fan is arranged in the cuboid shell and below the air inlet, and the fan is fixed on the shell; a cylindrical discharge chamber is arranged below the fan; the lower end of the discharge chamber is connected with a cylindrical electromagnetic induction chamber; the lower part of the discharge chamber is reduced; the cylinder diameter of the electromagnetic induction chamber is smaller than that of the discharge chamber; in the discharge chamber, a discharge needle is arranged at the upper part, and an annular metal coil is arranged at the lower part; an electromagnetic coil is wound outside the electromagnetic induction chamber; the tail parts of the discharge needle and the annular metal coil penetrate through the cylindrical wall of the over-discharge chamber and are connected with a high-voltage direct-current power supply; the discharge needle is connected with the negative electrode of the high-voltage direct-current power supply, and the annular metal coil is connected with the positive electrode of the high-voltage direct-current power supply.
2. The rapid wet waste reduction treatment system according to claim 1, wherein the blower has a cylindrical discharge chamber below it; the lower end of the discharge chamber is connected with a cylindrical electromagnetic induction chamber; the diameter of the lower part of the discharge chamber is reduced; the diameter of the cylinder of the electromagnetic induction chamber is smaller than that of the cylinder of the discharge chamber; in the cylinder of the discharge chamber, the upper part is provided with a discharge needle, and the lower part is provided with an annular metal coil; an electromagnetic coil is wound outside the cylinder of the electromagnetic induction chamber.
3. The system of claim 2, wherein the discharge chamber is made of ABS or pvc; the electromagnetic induction chamber is made of copper, aluminum or titanium; the output voltage of the high-voltage direct-current power supply of the active air generator is DC 5000V.
4. The wet waste rapid reduction processing system according to claim 1, 2 or 3, wherein the drying device comprises a rectangular box body, and a solid filter residue inlet is arranged at the top of the box body; a transversely arranged rotatable stirring shaft is arranged in the box body through a bearing; a plurality of stirring blades are arranged on the stirring shaft; one side of the box body close to the bottom is provided with a mixed air inlet of active air and outside air; the other side of the box body close to the top is provided with a water vapor outlet; the other side of the box body is provided with a dried waste residue outlet near the bottom.
5. The rapid wet waste abatement system of claim 4, wherein the blower is provided with a heating function or is connected to a heating device.
6. The rapid wet waste abatement system of claim 4, wherein the filtration apparatus is an MBR filter; and an air pipeline for aeration is arranged at the bottom of the MBR filter tank of the filtering equipment.
7. The wet waste rapid abatement system of claim 4, wherein the crushing device is a geared crusher; the crushing equipment comprises coarse crushing and wall-breaking crushing; the number of the crushing devices is one or more.
8. The rapid wet waste reduction processing system according to claim 4, wherein the pressing device is a screw press, and the pressing assembly of the pressing device is a screw press assembly.
CN202022041608.2U 2020-09-17 2020-09-17 Wet rubbish rapid decrement processing system Active CN212442523U (en)

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