CN112747322A - Recycling process for household and building garbage - Google Patents
Recycling process for household and building garbage Download PDFInfo
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- CN112747322A CN112747322A CN202011609610.3A CN202011609610A CN112747322A CN 112747322 A CN112747322 A CN 112747322A CN 202011609610 A CN202011609610 A CN 202011609610A CN 112747322 A CN112747322 A CN 112747322A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
- B03B9/061—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial
- B03B9/065—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse the refuse being industrial the refuse being building rubble
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B5/00—Operations not covered by a single other subclass or by a single other group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/58—Construction or demolition [C&D] waste
Abstract
The invention discloses a recycling process of domestic and construction waste, belonging to the technical field of environmental protection, which can realize recycling comprehensive utilization of the domestic waste and the construction waste by organically fusing in a system, wherein the product obtained by treating the domestic waste comprises energy used for the construction waste, secondary pollution can not be generated, the recycling comprehensive utilization of the construction waste and the construction waste is realized, the recycling cost is obviously reduced, meanwhile, a brand-new construction waste treatment mode is innovatively adopted, the construction waste is subjected to flotation through water in the product in the construction waste, then, wet construction waste is treated through a novel iron remover, based on the magnetic attraction of a magnet to an iron product, the construction waste is forced to rise to directly impact and break with a hollow breaking cone, meanwhile, high-temperature smoke generated in the process of treating the domestic waste is utilized to heat the wet construction waste along a gap, and the huge volume expansion generated when liquid water is converted into gaseous water is utilized to improve the breaking effect and efficiency, and optimizing the overall treatment process of the construction waste.
Description
Technical Field
The invention relates to the technical field of environmental protection, in particular to a recycling process for household and building garbage.
Background
Along with the rapid development of the socioeconomic rapid progress of China and the rapid improvement of the living standard of people, the garbage generated in the urban production and living process is rapidly increased, and the domestic garbage occupies land, pollutes the environment and has more obvious influence on the health of people. The increasing of the amount of municipal domestic waste makes the waste treatment more and more difficult, and the problems of environmental pollution and the like caused by the increase gradually draw attention from all social circles.
Similarly, in rapidly developing cities, construction waste, which refers to dregs, spoil, waste materials, sludge and other wastes generated in the process of building, laying, dismantling and repairing various buildings, structures, pipe networks and the like by construction units or individuals, is increasing. With the acceleration of industrialization and urbanization, the construction industry is rapidly developing, and along with the increase of the generated construction waste, the quantity of Chinese construction waste accounts for more than 1/3 of the total quantity of municipal waste.
For the treatment of domestic garbage and construction garbage, most of domestic garbage and construction garbage are still transported to suburban waste storage yards to be stacked in large and medium cities in China or directly buried, but the treatment hazard is very large: 1. a large amount of land area is occupied; 2. causing serious environmental pollution; 3. destroy soil structure, cause the earth's surface to subside, especially building rubbish reuse rate is very high, but the ironwork in the rubbish often needs artifical the getting rid of or magnet gets rid of when the recovery processing, and the ironwork just is difficult direct processing with rubbish combination, not only influences recovery efficiency, and the reproduction quality of rubbish is lower simultaneously.
Disclosure of Invention
1. Technical problem to be solved
Aiming at the problems in the prior art, the invention aims to provide a recycling process of domestic and construction wastes, which can carry out spatial separate treatment on the domestic wastes and the construction wastes, carries out organic fusion in a system, uses products obtained by treating the domestic wastes, including energy sources, on the construction wastes, does not generate secondary pollution, realizes recycling comprehensive utilization of the building wastes and the domestic wastes, obviously reduces the recycling treatment cost, and innovatively adopts a brand-new construction waste treatment mode, carries out flotation on the construction wastes through water in the products in the domestic wastes, removes partial wood blocks and plastic impurities, then treats the wet construction wastes through a novel iron remover, forces the construction wastes to rise and directly impact and crush a hollow crushing cone based on the magnetic attraction of magnets on iron products, high temperature flue gas when utilizing domestic waste to handle simultaneously heats moist building rubbish along the gap, and the huge volume expansion improves crushing effect and efficiency when utilizing liquid water to change gaseous state water into to utilize the lift of relapse to carry out precrushing and stoving remaining building rubbish, the dust that the process produced can be collected along with gaseous state water, and high efficiency is pollution-free and reduce subsequent broken pressure that refines, optimizes building rubbish's overall processing technology.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A recycling process for household and construction waste comprises the following steps:
a: treating domestic garbage:
a1, conveying the household garbage to a treatment plant by a special transport vehicle, conveying the household garbage to a fermentation tank for fermentation treatment by a garbage crane, and conveying biogas generated by garbage degradation to a pyrolysis gasification incinerator by an induced draft fan to serve as energy;
a2, filtering penetrating fluid generated by the fermentation of the household garbage in the fermentation tank, and then sending the penetrating fluid into a penetrating fluid treatment tank, wherein the penetrating fluid is treated by coagulating sedimentation, UASB, MBR and NF to obtain reclaimed water;
a3, mixing the sludge generated in the step a2 except the reclaimed water with the fermented household garbage, feeding the mixture into an incinerator for pyrolysis gasification, reserving the coke residue generated after pyrolysis gasification for later use, and absorbing the heat energy of pyrolysis gasification by a boiler to generate steam for pushing a turbine set to generate electricity;
b: treating construction waste:
b1, conveying the construction waste to a construction waste stockyard of a factory area, coarsely crushing the construction waste by a jaw crusher, pouring the construction waste into a flotation tank filled with the water in the step a2, floating wood blocks and plastic sundries to the water surface, introducing the water in the flotation tank into a water storage tank after fishing, and fishing the garbage with a sunk bottom;
b2, sequentially putting the garbage kept wet into a novel iron remover, pre-crushing the garbage while removing iron, and feeding the discharged garbage into a reaction crusher through a conveyor to perform secondary fine crushing;
b3, vibrating and screening the finely crushed construction waste, wherein the recycled fine powder with the particle size of less than 3mm and the coke slag are used as main raw materials for sintering perforated bricks in the tunnel kiln, the recycled fine aggregate with the particle size of 3-10mm is used for producing recycled aggregate concrete hollow blocks, the recycled coarse aggregate with the particle size of 10-40mm is used for manufacturing aggregates of recycled concrete and road and foundation cushions, and the recycled aggregate with the particle size of more than 40mm enters the impact crusher again for fine crushing, and the process is circulated.
Further, the high-temperature flue gas generated by incineration in the step a3 is subjected to waste heat recovery through a heat exchange tube, hot water at the temperature of 40-60 ℃ in the heat exchange tube returns to the fermentation pool, the high-temperature flue gas cooled to 140-820 ℃ enters the tunnel kiln in the step b3 to dry the wet green bricks, the combustible gas in the incinerator is used as a heat source for burning the green bricks, the combustion temperature of the combustible gas is 700-820 ℃, and the burning time is 30-35 h.
Further, the electricity generated by the steam turbine set in the step a3 can be used for power utilization in a plant area, the redundant electricity can be transmitted to a power grid, the steam with the temperature of 50-60 ℃ discharged after power generation is input into the steam curing kiln of the concrete small hollow building block in the step b3 to perform steam curing on the building block, and the condensed water formed after the steam is condensed in the transmission process in the power generation stage of the steam turbine returns to the boiler for secondary recycling.
Furthermore, the novel iron removing machine in the step b2 comprises a machine barrel, the lower end of the machine barrel is connected with a discharge port, the side wall of the machine barrel is connected with a feed inlet, the upper end of the machine barrel is provided with an iron removing top plate, the upper end of the iron removing top plate is provided with an electromagnet, a ventilation cavity is formed in the iron removing top plate, one end of the iron removing top plate is connected with an air inlet pipe, the air inlet pipe is communicated with the ventilation cavity, the lower end of the iron removing top plate is connected with a resonance pad in an embedded manner, the upper side of the resonance pad is provided with a shaping net connected with the iron removing top plate, a plurality of uniformly distributed vibration balls are embedded and connected in the resonance pad, the lower end of each vibration ball is connected with a hollow crushing cone, the hollow crushing cone penetrates through the resonance pad and extends to the lower side of the resonance pad, utilize the resonance effect of resonance pad and vibration ball simultaneously, can improve the crushing effect that refines to building rubbish, the high temperature flue gas that produces when the intake pipe is handled domestic waste can let in and dry moist building rubbish.
Further, vibrate the ball including basic ball and resonance inner ball, and the ball is located basic ball in the resonance, basic ball is close to the broken awl one end of cavity and has seted up the time delay hole, and the broken awl of cavity communicates with basic ball through the time delay hole, basic ball is kept away from the broken awl one end of cavity and is seted up a plurality of evenly distributed's tonifying qi hole, and the ball can make a round trip to vibrate in basic ball in the resonance and improve resonance effect, lets in the broken awl of cavity with high temperature flue gas by tonifying qi hole and time delay hole in simultaneously, can realize the fixed point release to the building rubbish crack to carry out the evaporation of heating to the moisture in the crack, huge volume expansion when utilizing liquid water to change gaseous state water improves crushing effect and efficiency.
Furthermore, the resonance inner ball is filled with a heat return fluid, the heat return fluid comprises heat conduction oil and a heat conduction copper ball in a mass ratio of 1:5-10, the heat return fluid has good heat conductivity, can keep the temperature of gas in the basic ball, and can generate a large amount of heat to heat the gas during oscillation to improve the temperature of the gas.
Furthermore, the aperture of the delay hole is gradually reduced along the direction that the hollow crushing cone is close to the base ball, a gas blocking ball in clearance fit is arranged in the hollow crushing cone, the gas blocking ball is in interference fit with the delay hole, a synchronizing rod is connected between the heat returning fluid and the gas blocking ball, the release time of the high-temperature gas is controlled through the fit between the gas blocking ball and the delay hole, after construction waste contacts the hollow crushing cone to generate cracks, the heat returning fluid moves upwards under the action of inertia and is pulled by the synchronizing rod to block the delay hole, at the moment, the high-temperature gas is difficult to release, when moisture on the construction waste permeates into the cracks, the heat returning fluid can also reset under the elastic action, the delay hole is reopened after the gas blocking ball is removed, and the high-temperature gas can be injected into the cracks from the hollow crushing cone to heat and evaporate the moisture.
Further, the resonance pad adopts the porous insulation material of elasticity to make, and the lower surface subsides cover has wear-resisting ventilative nylon layer of preventing, and the resonance pad had both had elasticity and had improved resonance effect, can keep warm to high-temperature gas simultaneously, and gaseous migration waits for the release in to the basic ball when receiving the extrusion, and wear-resisting ventilative nylon layer of preventing plays the guard action and the leak protection gas effect to the resonance pad.
Further, base ball and resonance inner ball adopt spring steel material to make, the broken awl of cavity adopts stainless steel material to make, and base ball and resonance inner ball possess good intensity and elasticity simultaneously, and the broken awl of cavity has higher intensity to carry out the breakage to building rubbish.
Further, still be connected with on the barrel lateral wall and inhale the powder pipe, inhale powder union coupling and have the draught fan, the dust that the building rubbish produced can be followed gaseous water and be handled by the draught fan suction together, avoids producing secondary pollution.
3. Advantageous effects
Compared with the prior art, the invention has the advantages that:
(1) the scheme can separate and treat the domestic garbage and the construction garbage in space, organically fuses in the system, applies the product obtained by treating the domestic garbage to the construction garbage including energy, does not generate secondary pollution, realizes the recycling comprehensive utilization of the construction garbage and the domestic garbage, obviously reduces the cost of recovery treatment, simultaneously creatively adopts a brand-new construction garbage treatment mode, carries out flotation on the construction garbage through the water in the product in the domestic garbage, removes partial wood blocks and plastic sundries, then treats the wet construction garbage through a novel iron remover, forces the construction garbage to rise and directly impact and crush with a hollow crushing cone based on the magnetic attraction of a magnet to an ironwork, simultaneously heats the wet construction garbage along a gap by utilizing the high-temperature smoke generated during the treatment of the domestic garbage, and improves the crushing effect and efficiency by utilizing the huge volume expansion generated when liquid water is converted into gaseous water, and utilize the lift of repetition to carry out precrushing and stoving to remaining building rubbish, the dust that the process produced can be collected along with gaseous water together, and high efficiency is pollution-free and reduce subsequent broken pressure of refining, optimizes the whole processing technology of building rubbish.
(2) The novel iron removing machine comprises a machine barrel, wherein the lower end of the machine barrel is connected with a discharge hole, the side wall of the machine barrel is connected with a feed inlet, the upper end of the machine barrel is provided with an iron removing top plate, the upper end of the iron removing top plate is provided with an electromagnet, a ventilation cavity is formed in the iron removing top plate, one end of the iron removing top plate is connected with an air inlet pipe, the air inlet pipe is communicated with the ventilation cavity, the lower end of the iron removing top plate is connected with a resonance pad in an embedded manner, the upper side of the resonance pad is provided with a shaping net connected with the iron removing top plate, a plurality of uniformly distributed vibration balls are embedded and connected in the resonance pad, the lower end of each vibration ball is connected with a hollow crushing cone, the hollow crushing cone penetrates through the resonance pad and extends to the lower side of the, can improve the crushing effect that refines building rubbish, the high temperature flue gas that produces when the intake pipe is handled domestic waste can let in and dry moist building rubbish.
(3) Vibrate ball including basic ball and resonance inner ball, and the ball is located basic ball in the resonance, basic ball is close to the broken awl one end of cavity and has seted up the time delay hole, and the broken awl of cavity communicates with basic ball mutually through the time delay hole, the broken awl one end of cavity is kept away from to basic ball has seted up a plurality of evenly distributed's tonifying qi hole, the ball can make a round trip to vibrate in the basic ball in the resonance and improve resonance effect, borrow the high temperature flue gas in the tonifying qi hole and the broken awl of cavity with the time delay hole let in simultaneously, can realize the fixed point release to the building rubbish crack, thereby carry out the heating evaporation to the moisture in the crack, huge volume expansion when utilizing liquid water to change gaseous state water improves crushing effect and efficiency.
(4) The resonance inner ball is filled with a heat return fluid, the heat return fluid comprises heat conduction oil and a heat conduction copper ball in a mass ratio of 1:5-10, the heat return fluid has good heat conductivity, can keep the temperature of gas in the basic ball, and can generate a large amount of heat to heat the gas during oscillation to improve the temperature of the gas.
(5) The aperture of the time-delay hole is gradually reduced along the direction that the hollow crushing cone is close to the base ball, a gas blocking ball in clearance fit is arranged in the hollow crushing cone, the gas blocking ball is in interference fit with the time-delay hole, a synchronizing rod is connected between the heat returning fluid and the gas blocking ball, the release time of the high-temperature gas is controlled through the fit between the gas blocking ball and the time-delay hole, after construction waste contacts the hollow crushing cone to generate cracks, the heat returning fluid moves upwards due to the inertia effect and pulls the gas blocking ball to block the time-delay hole by utilizing the synchronizing rod to pull the gas blocking ball to block the time-delay hole, the high-temperature gas is difficult to release, when water on the construction waste permeates into the cracks, the heat returning fluid can reset due to the elastic effect, the time-delay hole is reopened after the gas blocking ball is removed, and the high-temperature gas can.
(6) The resonance pad adopts the porous insulation material of elasticity to make, and the lower surface subsides cover has wear-resisting ventilative nylon layer of preventing, and the resonance pad had both had elasticity and improved resonance effect, can keep warm to high-temperature gas simultaneously, and gas migration waits for the release in to the basic ball when receiving the extrusion, and wear-resisting ventilative nylon layer of preventing plays the guard action and the leak protection gas effect to the resonance pad.
(7) The foundation ball and the resonance inner ball are made of spring steel materials, the hollow crushing cone is made of stainless steel materials, the foundation ball and the resonance inner ball have good strength and elasticity simultaneously, and the hollow crushing cone has high strength to crush the construction waste.
(8) Still be connected with on the barrel lateral wall and inhale the powder pipe, inhale powder union coupling and have the draught fan, the dust that the building rubbish produced can be followed gaseous water and is handled by the draught fan suction together, avoids producing secondary pollution.
Drawings
FIG. 1 is a schematic flow diagram of the present invention;
FIG. 2 is a schematic structural diagram of the novel iron removing machine of the present invention;
FIG. 3 is a schematic structural diagram of a vibrating ball portion according to the present invention;
FIG. 4 is a schematic view of the structure at A in FIG. 3;
FIG. 5 is a schematic diagram of the construction waste in the new type iron remover of the present invention.
The reference numbers in the figures illustrate:
1 machine barrel, 2 feed inlets, 3 discharge outlets, 4 iron removal top plates, 5 ventilation cavities, 6 electromagnets, 7 shaping nets, 8 resonance cushions, 9 air inlet pipes, 10 powder suction pipes, 11 basic balls, 12 hollow crushing cones, 13 resonance inner balls, 14 heat return fluid, 15 delay holes, 16 synchronizing rods, 17 balloon plugging and 18 air replenishing holes.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1, a recycling process of domestic and construction waste includes the following steps:
a: treating domestic garbage:
a1, conveying the household garbage to a treatment plant by a special transport vehicle, conveying the household garbage to a fermentation tank for fermentation treatment by a garbage crane, and conveying biogas generated by garbage degradation to a pyrolysis gasification incinerator by an induced draft fan to serve as energy;
a2, filtering penetrating fluid generated by the fermentation of the household garbage in the fermentation tank, and then sending the penetrating fluid into a penetrating fluid treatment tank, wherein the penetrating fluid is treated by coagulating sedimentation, UASB, MBR and NF to obtain reclaimed water;
a3, mixing the sludge generated in the step a2 except the reclaimed water with the fermented household garbage, feeding the mixture into an incinerator for pyrolysis gasification, reserving the coke residue generated after pyrolysis gasification for later use, and absorbing the heat energy of pyrolysis gasification by a boiler to generate steam for pushing a turbine set to generate electricity;
b: treating construction waste:
b1, conveying the construction waste to a construction waste stockyard of a factory area, coarsely crushing the construction waste by a jaw crusher, pouring the construction waste into a flotation tank filled with the water in the step a2, floating wood blocks and plastic sundries to the water surface, introducing the water in the flotation tank into a water storage tank after fishing, and fishing the garbage with a sunk bottom;
b2, sequentially putting the garbage kept wet into a novel iron remover, pre-crushing the garbage while removing iron, and feeding the discharged garbage into a reaction crusher through a conveyor to perform secondary fine crushing;
b3, vibrating and screening the finely crushed construction waste, wherein the recycled fine powder with the particle size of less than 3mm and the coke slag are used as main raw materials for sintering perforated bricks in the tunnel kiln, the recycled fine aggregate with the particle size of 3-10mm is used for producing recycled aggregate concrete hollow blocks, the recycled coarse aggregate with the particle size of 10-40mm is used for manufacturing aggregates of recycled concrete and road and foundation cushions, and the recycled aggregate with the particle size of more than 40mm enters the impact crusher again for fine crushing, and the process is circulated.
And (b) recovering waste heat of the high-temperature flue gas generated in the step a3 through a heat exchange tube, returning hot water at 40-60 ℃ in the heat exchange tube to the fermentation pool, cooling the high-temperature flue gas to 140-820 ℃ to enter the tunnel kiln in the step b3 to dry the wet green bricks, wherein the combustible gas in the incinerator is used as a heat source for firing the green bricks, the combustion temperature of the combustible gas is 700-820 ℃, and the firing time is 30-35 h.
And (b) the electricity generated by the steam turbine set in the step a3 can be used for power utilization in a plant area, the redundant electricity can be transmitted to a power grid, the steam with the temperature of 50-60 ℃ discharged after power generation is input into the steam curing kiln of the concrete small hollow building block in the step b3 to perform steam curing on the building block, and the condensed water formed after the steam is condensed in the transmission process in the power generation stage of the steam turbine returns to the boiler for secondary recycling.
Referring to fig. 2, the novel iron removing machine in step b2 includes a machine barrel 1, a discharge port 3 is connected to the lower end of the machine barrel 1, a feed inlet 2 is connected to the side wall of the machine barrel 1, an iron removing top plate 4 is installed at the upper end of the machine barrel 1, an electromagnet 6 is installed at the upper end of the iron removing top plate 4, a ventilation cavity 5 is formed in the iron removing top plate 4, an air inlet pipe 9 is connected to one end of the iron removing top plate 4, the air inlet pipe 9 is communicated with the ventilation cavity 5, a resonance pad 8 is connected to the lower end of the iron removing top plate 4 in an embedded manner, a shaping net 7 connected to the iron removing top plate 4 is arranged on the upper side of the resonance pad 8, a plurality of uniformly distributed vibration balls are connected to the resonance pad 8 in an embedded manner, a hollow crushing cone 12 is connected to the lower end of the vibration balls, the hollow crushing cone 12 penetrates through the resonance pad 8 and extends, utilize the resonance effect of resonance pad 8 and vibration ball simultaneously, can improve the crushing effect that refines to building rubbish, the high temperature flue gas that produces when intake pipe 9 handles domestic waste can let in and dry moist building rubbish.
Referring to fig. 3, the oscillating ball includes a base ball 11 and a resonant inner ball 13, the resonant inner ball 13 is located in the base ball 11, a delay hole 15 is formed at one end of the base ball 11 close to the hollow crushing cone 12, the hollow crushing cone 12 is communicated with the base ball 11 through the delay hole 15, a plurality of evenly distributed air supply holes 18 are formed at one end of the base ball 11 far from the hollow crushing cone 12, the resonant inner ball 13 can oscillate back and forth in the base ball 11 to improve the resonant effect, and meanwhile, high-temperature flue gas is introduced into the hollow crushing cone 12 through the air supply holes 18 and the delay hole 15, so that fixed-point release aiming at the cracks of the construction waste can be realized, thereby heating and evaporating moisture in the cracks, and the huge volume expansion when liquid water is converted into gaseous water is used to improve the crushing effect and efficiency.
The resonance inner ball 13 is filled with a heat return fluid 14, the heat return fluid 14 comprises heat conduction oil and heat conduction copper balls in a mass ratio of 1:5-10, the heat return fluid 14 has good heat conductivity, can keep the temperature of gas in the base ball 11, and can generate a large amount of heat to heat the gas during oscillation to improve the temperature of the gas.
Referring to fig. 4, the aperture of the delay hole 15 gradually decreases along the direction of the hollow crushing cone 12 approaching the base ball 11, the air blocking ball 17 with clearance fit is arranged in the hollow crushing cone 12, and the air blocking ball 17 is in interference fit with the time delay hole 15, a synchronizing rod 16 is connected between the reheat fluid 14 and the air blocking ball 17, the release time of the high-temperature gas is controlled by the cooperation between the blocking balloon 17 and the delay hole 15, after the construction waste contacts the hollow crushing cone 12 to generate cracks, the heat-returning fluid 14 moves upwards under the action of inertia and utilizes the synchronizing rod 16 to pull the blocking balloon 17 to block the delay hole 15, at the moment, high-temperature gas is difficult to release, and when moisture on the construction waste permeates into the cracks, at the moment, the heat-returning fluid 14 is reset due to the elastic action, the delay hole 15 is opened again after the air blocking ball 17 is removed, and high-temperature gas can be injected into the crack from the hollow crushing cone 12 to heat and evaporate water.
Resonance pad 8 adopts the porous insulation material of elasticity to make, and the lower surface subsides cover has wear-resisting ventilative nylon layer of preventing, and resonance pad 8 had both had elasticity and improved the resonance effect, can keep warm to high-temperature gas simultaneously, and gaseous migration waiting release in to basic ball 11 when receiving the extrusion, wear-resisting ventilative nylon layer of preventing plays the guard action and the leak protection gas effect to resonance pad 8.
The basic ball 11 and the resonance inner ball 13 are made of spring steel materials, the hollow crushing cone 12 is made of stainless steel materials, the basic ball 11 and the resonance inner ball 13 have good strength and elasticity at the same time, and the hollow crushing cone 12 has high strength to crush the construction waste.
Still be connected with on the barrel 1 lateral wall and inhale powder pipe 10, inhale powder pipe 10 and be connected with the draught fan, the dust that the building rubbish produced can be followed gaseous water and is handled by the draught fan suction together, avoids producing secondary pollution.
Building garbage containing ironwork is lifted and lowered differently under the repeated power-on and power-off action of the electromagnet 6, and impacts the rest building garbage without ironwork, so that the pre-crushing effect is achieved.
Referring to fig. 5, the present invention can separate and treat domestic garbage and construction garbage spatially, and organically integrate in the system, and the products obtained by treating domestic garbage including energy is used for construction garbage, without secondary pollution, so as to realize recycling and comprehensive utilization of construction garbage and domestic garbage, and significantly reduce the cost of recycling treatment, and at the same time, creatively adopts a brand new construction garbage treatment mode, and the construction garbage is floated by water in the products of the domestic garbage to remove part of wood blocks and plastic impurities, and then the wet construction garbage is treated by a novel iron remover, based on the magnetic attraction of magnets to iron products, the construction garbage is forced to rise and directly impact and crush with a hollow crushing cone 12, and the wet construction garbage is heated along gaps by high temperature smoke gas during the treatment of the domestic garbage, huge volume expansion improves crushing effect and efficiency when utilizing liquid water to change gaseous state water into to utilize the lift that relapse to carry out precrushing and stoving to remaining building rubbish, the dust that the process produced can be collected along with gaseous state water together, and high efficiency is pollution-free and reduces subsequent broken pressure of refining, optimizes building rubbish's overall processing technology.
The above are merely preferred embodiments of the present invention; the scope of the invention is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.
Claims (10)
1. A resource recycling process for household and construction waste is characterized in that: the method comprises the following steps:
a: treating domestic garbage:
a1, conveying the household garbage to a treatment plant by a special transport vehicle, conveying the household garbage to a fermentation tank for fermentation treatment by a garbage crane, and conveying biogas generated by garbage degradation to a pyrolysis gasification incinerator by an induced draft fan to serve as energy;
a2, filtering penetrating fluid generated by the fermentation of the household garbage in the fermentation tank, and then sending the penetrating fluid into a penetrating fluid treatment tank, wherein the penetrating fluid is treated by coagulating sedimentation, UASB, MBR and NF to obtain reclaimed water;
a3, mixing the sludge generated in the step a2 except the reclaimed water with the fermented household garbage, feeding the mixture into an incinerator for pyrolysis gasification, reserving the coke residue generated after pyrolysis gasification for later use, and absorbing the heat energy of pyrolysis gasification by a boiler to generate steam for pushing a turbine set to generate electricity;
b: treating construction waste:
b1, conveying the construction waste to a construction waste stockyard of a factory area, coarsely crushing the construction waste by a jaw crusher, pouring the construction waste into a flotation tank filled with the water in the step a2, floating wood blocks and plastic sundries to the water surface, introducing the water in the flotation tank into a water storage tank after fishing, and fishing the garbage with a sunk bottom;
b2, sequentially putting the garbage kept wet into a novel iron remover, pre-crushing the garbage while removing iron, and feeding the discharged garbage into a reaction crusher through a conveyor to perform secondary fine crushing;
b3, vibrating and screening the finely crushed construction waste, wherein the recycled fine powder with the particle size of less than 3mm and the coke slag are used as main raw materials for sintering perforated bricks in the tunnel kiln, the recycled fine aggregate with the particle size of 3-10mm is used for producing recycled aggregate concrete hollow blocks, the recycled coarse aggregate with the particle size of 10-40mm is used for manufacturing aggregates of recycled concrete and road and foundation cushions, and the recycled aggregate with the particle size of more than 40mm enters the impact crusher again for fine crushing, and the process is circulated.
2. The recycling process of household and construction waste as claimed in claim 1, which is characterized in that: and (b) recovering waste heat of the high-temperature flue gas generated in the incineration in the step a3 through a heat exchange tube, returning hot water at 40-60 ℃ in the heat exchange tube to the fermentation pool, cooling the high-temperature flue gas to 140-820 ℃ and entering the tunnel kiln in the step b3 to dry the wet green bricks, wherein the combustible gas of the incinerator is used as a heat source for burning the green bricks, the combustion temperature of the combustible gas is 700-820 ℃, and the burning time is 30-35 h.
3. The recycling process of household and construction waste as claimed in claim 1, which is characterized in that: and (b) the electricity generated by the steam turbine set in the step a3 can be used for power utilization in a plant area, the redundant electricity can be transmitted to a power grid, the steam with the temperature of 50-60 ℃ discharged after power generation is input into the steam curing kiln of the concrete small hollow building block in the step b3 to perform steam curing on the building block, and the condensed water formed after the steam is condensed in the transmission process in the power generation stage of the steam turbine returns to the boiler to be recycled for the second time.
4. The recycling process of household and construction waste as claimed in claim 1, which is characterized in that: the novel iron removing machine in the step b2 comprises a machine barrel (1), the lower end of the machine barrel (1) is connected with a discharge hole (3), the side wall of the machine barrel (1) is connected with a feed inlet (2), the upper end of the machine barrel (1) is provided with an iron removing top plate (4), an electromagnet (6) is installed at the upper end of the iron removing top plate (4), a ventilation cavity (5) is formed in the iron removing top plate (4), one end of the iron removing top plate (4) is connected with an air inlet pipe (9), the air inlet pipe (9) is communicated with the ventilation cavity (5), the lower end of the iron removing top plate (4) is embedded and connected with a resonance pad (8), the upper side of the resonance pad (8) is provided with a shaping net (7) connected with the iron removing top plate (4), a plurality of vibrating balls which are evenly distributed are embedded and connected in the resonance cushion (8), the lower end of each vibrating ball is connected with a hollow crushing cone (12), and the hollow crushing cone (12) penetrates through the resonance pad (8) and extends to the lower side thereof.
5. The recycling process of household and construction waste as claimed in claim 4, wherein the recycling process comprises the following steps: vibrate ball includes ball (13) in basic ball (11) and the resonance, and ball (13) are located basic ball (11) in the resonance, basic ball (11) are close to broken awl (12) one end of cavity and have been seted up time delay hole (15), and broken awl (12) of cavity are linked together with basic ball (11) through time delay hole (15), basic ball (11) are kept away from broken awl (12) one end of cavity and are seted up a plurality of evenly distributed's tonifying qi hole (18).
6. The recycling process of household and construction waste as claimed in claim 5, wherein the recycling process comprises the following steps: the resonance inner ball (13) is filled with a heat return fluid (14), and the heat return fluid (14) comprises heat conduction oil and a heat conduction copper ball in a mass ratio of 1: 5-10.
7. The recycling process of household and construction waste as claimed in claim 5, wherein the recycling process comprises the following steps: time delay hole (15) are close to the direction of basic ball (11) along cavity broken awl (12) and go up the aperture and reduce gradually, be equipped with clearance fit's stifled balloon (17) in cavity broken awl (12), and block up interference fit between balloon (17) and time delay hole (15), be connected with synchronizing bar (16) between fever fluid (14) and stifled balloon (17).
8. The recycling process of household and construction waste as claimed in claim 4, wherein the recycling process comprises the following steps: the resonance pad (8) is made of elastic porous heat-insulating materials, and the lower surface of the resonance pad is coated with a wear-resistant breathable nylon layer.
9. The recycling process of household and construction waste as claimed in claim 5, wherein the recycling process comprises the following steps: the basic ball (11) and the resonance inner ball (13) are made of spring steel materials, and the hollow crushing cone (12) is made of stainless steel materials.
10. The recycling process of household and construction waste as claimed in claim 4, wherein the recycling process comprises the following steps: still be connected with on barrel (1) lateral wall and inhale powder pipe (10), inhale powder pipe (10) and be connected with the draught fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609610.3A CN112747322A (en) | 2020-12-30 | 2020-12-30 | Recycling process for household and building garbage |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011609610.3A CN112747322A (en) | 2020-12-30 | 2020-12-30 | Recycling process for household and building garbage |
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| Publication Number | Publication Date |
|---|---|
| CN112747322A true CN112747322A (en) | 2021-05-04 |
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| CN202011609610.3A Withdrawn CN112747322A (en) | 2020-12-30 | 2020-12-30 | Recycling process for household and building garbage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502190A (en) * | 2022-09-27 | 2022-12-23 | 洛阳中新能再生能源有限公司 | Comprehensive treatment and resource recycling process for various solid wastes |
-
2020
- 2020-12-30 CN CN202011609610.3A patent/CN112747322A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115502190A (en) * | 2022-09-27 | 2022-12-23 | 洛阳中新能再生能源有限公司 | Comprehensive treatment and resource recycling process for various solid wastes |
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Application publication date: 20210504 |