CN115013818A - Device and method for molding and drying manure and co-incinerating household garbage - Google Patents

Device and method for molding and drying manure and co-incinerating household garbage Download PDF

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Publication number
CN115013818A
CN115013818A CN202210606625.7A CN202210606625A CN115013818A CN 115013818 A CN115013818 A CN 115013818A CN 202210606625 A CN202210606625 A CN 202210606625A CN 115013818 A CN115013818 A CN 115013818A
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China
Prior art keywords
manure
drying
butt joint
outlet
treatment system
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CN202210606625.7A
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Chinese (zh)
Inventor
龙吉生
杨德坤
王友东
戚学江
彭小龙
胡发立
邹昕
刘殊嘉
白力
沈咏烈
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Shanghai SUS Environment Co Ltd
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Shanghai SUS Environment Co Ltd
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Priority to CN202210606625.7A priority Critical patent/CN115013818A/en
Publication of CN115013818A publication Critical patent/CN115013818A/en
Pending legal-status Critical Current

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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
    • F23G5/04—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
    • C02F11/13—Treatment of sludge; Devices therefor by de-watering, drying or thickening by heating
    • 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
    • F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
    • 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
    • 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
    • F23G5/442—Waste feed arrangements
    • F23G5/444—Waste feed arrangements for solid waste
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
    • F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/10—Drying by heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00—Pretreatment
    • F23G2201/20—Dewatering by mechanical means
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/12—Heat utilisation in combustion or incineration of waste

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The scheme provides a device and a method for coprocessing of formed and dried manure and domestic garbage, wherein the manure is received and stirred to adjust the moisture content of the manure, so that the manure in a semi-fluid state is formed; dehydrating the semi-liquid manure, using part of wastewater generated by the manure as backflow tempering water for adjusting the moisture content of the manure, and performing wastewater treatment on the rest of wastewater to perform compression molding on solids generated by the manure; drying the formed manure, performing wastewater treatment on condensation wastewater generated after dehumidification of the dried waste gas, wherein one part of the dehumidified waste gas is used as circulating make-up gas of a drying treatment system and flows back to the drying treatment system, and the other part of the dehumidified waste gas enters an incineration plant for incineration treatment; the solid manure after the drying treatment and the household garbage are mixed and then are incinerated cooperatively to generate power, so that cooperative treatment of the manure and the household garbage is realized, reduction, harmlessness and recycling of the manure can be achieved, and an incineration treatment plant with insufficient quantity of the household garbage can be solved.

Description

Device and method for molding and drying manure and co-incinerating household garbage
Technical Field
The invention belongs to the technical field of incineration treatment, and particularly relates to a device and a method for molding and drying manure and incinerating household garbage cooperatively.
Background
A large amount of cow dung needs to be treated in a large-scale cow farm, most of the cow dung is treated in the open air and then is used as fuel to be burnt, and a part of the large-scale cow farm is additionally provided with simple drying treatment equipment to be dried and then is used as filler in a cow dung fermentation bed or is used as organic fertilizer to return to the field.
The prior cow dung treatment technology has the following defects: as the cow dung for fuel incineration is treated, an independent factory needs to be built for treatment, and the treated dung residues can be used as organic fertilizer, fuel and the like for utilization, but byproducts (waste gas and waste water) in the treatment process still need to be further subjected to absorption treatment, so that the investment cost is high, and project positions are dispersed; adopt the cow dung that the mode was handled is air-dried in the sunning, area is huge and the foul smell is difficult to control, and waste water infiltration ground pollutes ground water source, and if the sunning air-dries the back direct fuel burning as, does not have unified tail gas processing apparatus that burns, causes atmospheric environment to pollute easily.
However, the conventional incineration plants at present need to have a certain design treatment scale (such as 500t/d) to have economical efficiency, and some small and medium-sized cities need to build own waste incineration plants, so that the waste amount is insufficient, and the ton investment cost is high. How to combine the two, while solving the problem of fuel supply, the realization of the resourceful and harmless treatment of the manure becomes a technical problem to be solved urgently in the future.
Disclosure of Invention
The invention aims to provide a device and a method for molding and drying manure and incinerating household garbage in a synergic manner, which can realize the reduction, harmless and recycling treatment of the manure, save investment and operating cost and solve the problem of an incineration treatment plant with insufficient amount of household garbage.
In order to solve the technical problems, the invention provides a coprous incineration treatment device for molding and drying manure and household garbage, which comprises a manure drying treatment system, a wastewater treatment system and an incineration power generation and flue gas treatment system;
wherein, excrement material mummification processing system is including the receiving mechanism who is used for receiving excrement material, the excrement material equalizing basin that is used for adjusting excrement material moisture content, the mixer that is used for stirring excrement material, the hydroextractor that is used for excrement material dehydration and be used for excrement material shaping and the dry shaping mechanism of mummification processing, receiving mechanism's entry be used for connect material and export with the entry butt joint of excrement material equalizing basin, the export of excrement material equalizing basin with the entry butt joint of hydroextractor, set up in the excrement material equalizing basin the mixer, the waste water outlet of hydroextractor with the butt joint of waste water treatment system, the solid export of hydroextractor with the entry butt joint of shaping drying mechanism, the gas outlet of shaping drying mechanism respectively with the supplementary circulation gas port of shaping drying mechanism with incineration power generation and flue gas treatment system butt joint, the condensation waste water outlet of shaping drying mechanism with the butt joint of waste water treatment system, and a solid outlet of the forming and drying mechanism is in butt joint with the garbage pool and finally enters the incineration power generation and flue gas treatment system for treatment.
Optionally, in above-mentioned excrement material shaping is dried and domestic waste burns processing apparatus in coordination, the waste water export of hydroextractor with set up the pond of keeping in between the wastewater treatment system, the mummification machine with burn and have arranged in proper order between electricity generation and the flue gas treatment system and carry cloth mechanism and the rubbish pond.
Optionally, in the coprocessing incineration treatment device for molding and drying manure and household garbage, a first outlet of the temporary storage tank is in butt joint with an inlet of the manure adjusting tank, and a second outlet of the temporary storage tank is in butt joint with an inlet of the wastewater treatment system;
and/or a solid outlet of the garbage pool is in butt joint with an inlet of the incineration power generation and flue gas treatment system, and a leachate outlet is in butt joint with an inlet of the wastewater treatment system;
and/or a first wastewater outlet of the dehydrator is in butt joint with an inlet of the wastewater treatment system, and a second wastewater outlet of the dehydrator is in butt joint with an inlet of the manure adjusting tank.
Optionally, in the device for co-incineration treatment of manure molding, drying and household garbage, the material receiving mechanism comprises a discharge hopper and a crusher, the discharge hopper is provided with a gas collecting hood and a discharge quick-opening door, an outlet of the discharge hopper is in butt joint with an inlet of the crusher, and an outlet of the crusher is in butt joint with an inlet of the manure adjusting tank.
Optionally, in the coprocessing device for shaping and drying the manure and incinerating the household garbage, the shaping and drying mechanism comprises the extrusion molding machine and the drier; wherein the content of the first and second substances,
the solid outlet of the dehydrator is in butt joint with the inlet of the extrusion molding machine, the outlet of the extrusion molding machine is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system respectively, the waste water outlet of the drier is in butt joint with the waste water treatment system, and the solid outlet of the drier is in butt joint with the incineration power generation and flue gas treatment system;
or the solid outlet of the dehydrator is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system respectively, the condensed wastewater outlet of the drier is in butt joint with the wastewater treatment system, the solid outlet of the drier is in butt joint with the inlet of the extrusion molding machine, and the outlet of the extrusion molding machine is in butt joint with the incineration power generation and flue gas treatment system.
Optionally, in the above coproage forming and drying and domestic waste synergistic incineration treatment device, the downstream of the drying machine is provided with the material conveying and distributing mechanism, the material conveying and distributing mechanism includes a plate chain conveyor and a material distributing plate, and the material distributing plate is arranged at an outlet of the plate chain conveyor.
Optionally, in the coprocessing incineration treatment device for molding and drying the manure and the household garbage, one end of the distributing plate is hinged to the plate chain conveyor, and the other end of the distributing plate pulls the swinging angle of the distributing plate through a rope;
the cloth conveying mechanism further comprises a cloth plate adjusting motor and a pulley, the output end of the cloth plate adjusting motor is connected with the rope, and the pulley is used for guiding the rope.
Optionally, in the above-mentioned excrement material shaping is dried and is burnt processing apparatus in coordination with domestic waste, be provided with in the excrement material equalizing basin and be used for supplying water the delivery pump and be used for to the delivery pump of hydroextractor pay-off.
The scheme also provides a method for molding and drying manure and cooperatively incinerating household garbage, which comprises the following steps:
s1, receiving the manure, and adjusting the moisture content of the manure in a stirring manner to form the manure in a semi-fluid state;
s2, dehydrating the manure in the semi-fluid state, using part of wastewater generated by the manure as backflow tempering water for adjusting the moisture content of the manure, performing wastewater treatment on the rest of wastewater, and performing compression molding and drying treatment on solids generated by the manure;
s3, carrying out wastewater treatment on condensation wastewater generated after dehumidification of the dried waste gas, wherein one part of the dehumidified waste gas is used as circulating make-up gas and flows back to the excrement drying treatment system, the other part of the dehumidified waste gas enters an incinerator for incineration treatment, and the dried solid excrement and household garbage are mixed and then are incinerated cooperatively to generate power.
Optionally, in the coprocessing method of manure molding and drying and domestic garbage incineration, the moisture content of the manure in a semi-fluid state in step S1 is 80% to 95%, the moisture content of the solid manure after dehydration in step S2 is 55% to 70%, and the moisture content of the solid manure after drying in step S3 is 40% ± 10%.
The invention provides a coprocessing device for shaping and drying manure and incinerating household garbage, which has the following beneficial effects:
receiving the manure through the receiving mechanism, and stirring and adjusting the moisture content of the manure in the manure adjusting tank by using a stirrer to form the manure in a semi-fluid state. The dehydration machine dehydrates the manure in a semi-fluid state, returns part of wastewater generated by the manure as backflow tempering water to the manure adjusting tank to adjust the moisture content of the manure, and the rest of wastewater enters the wastewater treatment system to be treated, and utilizes the forming and drying mechanism to perform solid compression forming and drying treatment on the manure, and the waste gas after drying treatment is treated by wastewater after being dehumidified to generate condensed wastewater, and one part of the dehumidified waste gas is used as circulating make-up gas to flow back to the manure drying treatment system, and the other part of the dehumidified waste gas enters the incineration plant to be incinerated, and the solid manure after drying treatment is mixed with household garbage to be incinerated cooperatively for power generation. And further, the cooperative treatment of the manure and the household garbage can be realized, so that the reduction, harmless and recycling treatment of the manure can be realized, the investment and the operating cost can be saved, and the problem of an incineration treatment plant with insufficient quantity of the household garbage is solved.
The invention also provides a treatment method of the coproaking and drying and domestic garbage incineration treatment device, which has the same beneficial effects and is not further described herein.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a process flow diagram of a device for molding and drying manure and incinerating household garbage in cooperation according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a cloth conveying mechanism according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a distributing plate adjusting motor, a rope and a distributing plate installed at an outlet of a plate chain conveyor according to an embodiment of the present invention;
fig. 4 is a layout azimuth chart of each component in the coprocessing device for molding and drying manure and incinerating household garbage.
In the upper diagram:
1-a manure drying treatment system; 101-plate chain conveyor; 102-a refuse pool; 103-a temporary material storage hopper; 104-a cloth plate; 105-a pulley; 106-a rope; 107-distributing plate adjusting motor;
2-a wastewater treatment system;
3-incineration power generation and flue gas treatment system.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is more than two, if there are first and second described for the purpose of distinguishing technical features, but not for indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
The core of the invention is to provide a device and a method for the cooperative incineration treatment of the molding and drying of the manure and the household garbage, which can realize the reduction, harmless and recycling treatment of the manure, save the investment and the operating cost and solve the incineration treatment plant with insufficient quantity of the household garbage.
In order to make those skilled in the art better understand the technical solutions provided by the present invention, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 4, fig. 1 is a process flow diagram of a device for molding and drying manure and incinerating household garbage in cooperation according to an embodiment of the present invention; fig. 2 is a schematic structural diagram of a cloth conveying mechanism according to an embodiment of the present invention; fig. 3 is a schematic structural diagram of a distributing plate adjusting motor, a rope and a distributing plate installed at an outlet of a plate chain conveyor according to an embodiment of the present invention; fig. 4 is a layout azimuth chart of each component in the coprocessing device for molding and drying manure and incinerating household garbage.
The invention provides a coprocessing incineration treatment device for manure molding and drying and household garbage, which comprises a manure drying treatment system 1, a wastewater treatment system 2 and an incineration power generation and flue gas treatment system 3.
The excrement drying treatment system 1 comprises a material receiving mechanism for receiving excrement, an excrement regulating tank for regulating the moisture content of the excrement, a stirrer for stirring the excrement, a dehydrator for dehydrating the excrement and a forming and drying mechanism for forming and drying the excrement.
The inlet of the receiving mechanism is used for receiving materials, the outlet of the receiving mechanism is in butt joint with the inlet of the excrement regulating pool, the outlet of the excrement regulating pool is in butt joint with the inlet of the dehydrator, the stirrer is arranged in the excrement regulating pool, and the excrement regulating pool has the functions of temporary storage and regulation. The waste water outlet of the dehydrator is in butt joint with the waste water treatment system 2, the solid outlet of the dehydrator is in butt joint with the inlet of the forming and drying mechanism, the gas outlet of the forming and drying mechanism is in butt joint with the circulating gas supplementing inlet of the forming and drying mechanism and the incineration power generation and flue gas treatment system 3 respectively, the condensation waste water outlet of the forming and drying mechanism is in butt joint with the waste water treatment system 2, and the solid outlet of the forming and drying mechanism is in butt joint with the incineration power generation and flue gas treatment system 3. The extrusion forming aims at keeping the shape of the excrement when entering the furnace, avoiding overlarge dust emission of the excrement in the drying and conveying process and facilitating the grab bucket of the garbage pool 102 to grab materials.
Specifically, the forming and drying mechanism is arranged below the garbage discharging platform.
According to the coprocessing device for molding and drying the manure and incinerating the household garbage, the manure is received through the material receiving mechanism, and the moisture content of the manure is stirred and adjusted in the manure adjusting tank by using the stirrer, so that the manure in a semifluid state is formed. The dehydration machine dehydrates the manure in a semi-fluid state, returns part of wastewater generated by the manure as backflow tempering water to the manure adjusting tank to adjust the moisture content of the manure, and the rest of wastewater enters the wastewater treatment system 2 to be treated, and is used for performing solid compression molding and drying treatment on the manure by using a molding and drying mechanism, the waste gas after drying treatment is subjected to wastewater treatment on condensation wastewater generated after dehumidification, one part of the dehumidified waste gas is used as supplementary circulating air and flows back to the manure drying treatment system, the other part of the dehumidified waste gas enters an incinerator to be incinerated, and the solid manure after drying treatment and household garbage are mixed and then are incinerated cooperatively to generate electricity. And then can realize the coprocessing of excrement material and domestic waste, can not only realize the minimizing, innocent treatment, resourceful treatment of excrement material, can also save investment and working costs, solve the insufficient incineration disposal factory of domestic waste volume.
As shown in fig. 4, the arrangement of the present invention contemplates that under the discharge platform of the incineration plant, the plant may be constructed separately for disposal, and when the plant is constructed separately, the discharge may be transported by vehicle to the waste tank 102 for disposal, including but not limited to the position shown in the figure. The heat source for drying the cow dung can adopt heat sources such as steam, natural gas, flue gas, biomass fuel and the like, and when other heat sources except for the example are adopted, rear-end flue gas treatment and equipment corrosion need to be considered.
The incineration power generation and flue gas treatment system 3 adopts an incinerator for combustion, and the incinerator type includes but is not limited to a grate furnace.
In the embodiment, a temporary storage tank is arranged between the wastewater outlet of the dehydrator and the wastewater treatment system 2, and a material conveying and distributing mechanism and a garbage tank 102 are sequentially arranged between the drier and the incineration power generation and flue gas treatment system 3.
On the basis of the specific embodiment, the first outlet of the temporary storage tank is in butt joint with the inlet of the manure adjusting tank, and the second outlet of the temporary storage tank is in butt joint with the inlet of the wastewater treatment system 2;
and/or a solid outlet of the garbage pool 102 is butted with an inlet of the incineration power generation and flue gas treatment system 3, and a leachate outlet is butted with an inlet of the wastewater treatment system 2;
and/or a first wastewater outlet of the dehydrator is in butt joint with an inlet of the wastewater treatment system 2, and a second wastewater outlet of the dehydrator is in butt joint with an inlet of the manure adjusting pool.
In a specific embodiment, the material receiving mechanism comprises a discharge hopper and a crusher, the discharge hopper is provided with a gas collecting hood and a discharge quick-opening door, an outlet of the discharge hopper is in butt joint with an inlet of the crusher, and an outlet of the crusher is in butt joint with an inlet of the excrement regulating tank. The crusher is a crushing device for crushing the large manure materials which are naturally aired and formed into small pieces with the diameter less than or equal to 20 mm.
In a specific embodiment, the forming and drying mechanism comprises an extrusion forming machine and a drying machine.
The drying machine can adopt a heat pump drying machine, adopts a three-pass belt type, the belt conveyor adopts a stainless steel mesh belt, the heat source of the drying machine adopts secondary steam pumping (0.6MPa and 165 ℃) of an incineration plant for indirect heating, steam pipelines are arranged beside two conveying belts, the temperature in the drying machine is kept at 130 ℃ through heating of the steam pipelines, the formed excrement is dried, the moisture content of excrement discharging is controlled by controlling the discharging speed of the belt conveyor, and the moisture content is set according to the heat value of the excrement and the domestic garbage entering the furnace. The waste gas generated in the drying process is dehumidified and dried by a dehumidifying heat pump, one part of the waste gas returns to the drying treatment system for internal circulation, and the other part of the waste gas is pumped away and sent to an incinerator of an incineration plant to be incinerated as primary air.
In one case, the cow dung can be molded firstly and then dried, and the method specifically comprises the following steps: the solid outlet of the dehydrator is in butt joint with the inlet of the extrusion forming machine, the outlet of the extrusion forming machine is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system 3 respectively, the condensed wastewater outlet of the drier is in butt joint with the wastewater treatment system 2, and the solid outlet of the drier is in butt joint with the incineration power generation and flue gas treatment system 3. When the cow dung drying treatment system adopts the processes of extrusion dehydration, extrusion forming and drying, the processes of extrusion dehydration are firstly adopted, the aim is to remove free water in cow dung, ensure that cow dung can be formed and can maintain the formed shape, and simultaneously, the extrusion dehydration is firstly carried out, so that the heat consumption in the drying process can be effectively reduced.
Or in one case, the cow dung can be dried and then molded, and the method specifically comprises the following steps: the solid outlet of the dehydrator is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system 3 respectively, the condensed wastewater outlet of the drier is in butt joint with the wastewater treatment system 2, the solid outlet of the drier is in butt joint with the inlet of the extrusion forming machine, and the outlet of the extrusion forming machine is in butt joint with the incineration power generation and flue gas treatment system 3.
Specifically, as shown in fig. 2-3, a material conveying and distributing mechanism is disposed downstream of the drying machine, the material conveying and distributing mechanism includes a plate chain conveyor 101 and a material distributing plate, a material temporary storage hopper 103 is disposed at an inlet of the plate chain conveyor 101, an outlet of the plate chain conveyor 101 is disposed above the waste pool 102, and a material distributing plate 104 is disposed at an outlet of the plate chain conveyor 101. When the excrement drying treatment system operates, the angle of the material distribution plate 104 is adjusted to distribute materials, and when the excrement drying treatment system stops maintenance or stops discharging, the material distribution plate 104 serves as a discharge port sealing plate to prevent odor of the garbage pool 102 from flowing backwards to an excrement treatment workshop through a conveyor.
Further, one end of the distributing plate 104 is hinged to the plate chain conveyor 101, and the other end of the distributing plate 104 is pulled by a rope 106 to swing by an angle, so that the position of excrement discharging can be adjusted by controlling the angle of the distributing plate 104. The rope 106 may be a wire rope or the like.
The conveying and distributing mechanism further comprises a distributing plate adjusting motor 107 and a pulley 105, the output end of the distributing plate adjusting motor 107 is connected with the rope 106, and the pulley 105 is used for providing guidance for the rope 106. The distributing plate adjusting motor 107 pulls the rope 106 to loosen or tighten, and the materials can be conveyed to different positions of the cow dung distributing area of the garbage pool 102 by controlling different angles and utilizing the sliding of the materials on the distributing plate 104.
It should be noted that, excrement material is unloading the in-process among the prior art, adopts fixed position to unload and leads to fixed position long-pending material serious easily, can't rationally with cow dung and domestic waste compatibility income stove burning, consequently, the above-mentioned conveying cloth mechanism of proposing of present case innovation expands material cloth region, guarantees excrement and urine and domestic waste reasonable stable batching.
Specifically, a water feeding pump for supplying water and a material conveying pump for feeding materials to the dehydrator are arranged in the manure adjusting tank.
The stirrer is a controllable constant-speed stirrer, and the crushed cow dung enters the dung adjusting tank and is stirred and homogenized by the stirrer. The manure drying treatment system 1 further comprises a control device for controlling the operation of each component. Controlling the current to be in a certain range interval, transmitting a current signal into a computer, and controlling a water feeding pump to start to inject water into the manure adjusting pool in the stirring process if the stirring current signal is larger than the set range interval until the current signal of the stirrer is in the set range interval, and stopping the water feeding pump; if the stirring current signal is less than or equal to the set range interval, the water pump is not started.
And after the manure in the manure adjusting tank is uniform in shape, pumping the manure into an extrusion dehydrator through a feed delivery pump for extrusion dehydration.
In addition, the scheme also provides a coprocessing method for molding and drying the manure and incinerating the household garbage in a synergic manner, which is characterized by comprising the following steps of:
s1, receiving the manure, and adjusting the moisture content of the manure in a stirring manner to form the manure in a semi-fluid state. Specifically, the moisture content of the manure is regulated in a manure regulating pond.
S2, dehydrating the semi-liquid manure, using part of wastewater generated by the manure as backflow tempering water for adjusting the moisture content of the manure, performing wastewater treatment on the rest of wastewater, and performing compression molding and drying treatment on the solid generated by the manure. Specifically, a part of wastewater generated by the manure is sent to a manure adjusting tank as backflow tempering water, and the rest part of wastewater is sent to a wastewater treatment system 2 for treatment.
S3, carrying out wastewater treatment on condensation wastewater generated after dehumidification of the dried waste gas, wherein one part of the dehumidified waste gas is used as circulating make-up gas and flows back to the drying treatment system, the other part of the dehumidified waste gas enters an incinerator for incineration treatment, and the dried solid manure and the household garbage are mixed and then are incinerated cooperatively to generate power.
Specifically, the moisture content of the semi-liquid manure material in the step S1 is 80% -95%, the moisture content of the dehydrated solid manure material in the step S2 is 55% -70%, and the moisture content of the dried solid manure material in the step S3 is 40% +/-10%.
In one embodiment, as shown in fig. 1-3, the cow dung transfer trolley delivers cow dung to the position of a discharge hopper for discharging, the discharge hopper is provided with a gas collecting hood and a discharge quick-opening door, so that odor is prevented from overflowing and is timely pumped away for treatment. And a crusher is arranged below the cow dung receiving hopper to crush large cow dung and then send the crushed cow dung into a dung adjusting tank. After the cow dung is discharged, stirring the cow dung by a stirrer, and simultaneously refluxing a proper amount of extrusion wastewater according to the properties of the cow dung, so that the moisture content of the cow dung is finally adjusted to be in a homogenized semifluid state (80-95%). The cow dung in a semi-fluid state is pumped into an extrusion dehydrator by a water pump to be dehydrated to reach the water content of 55-70%, the wastewater generated after dehydration is sent into a temporary storage tank, one part of the wastewater flows back to be used as adjusting water required by a dung adjusting tank, the rest wastewater is finally discharged into a wastewater treatment system 2 to be treated, and cow dung residues are conveyed into an extrusion molding machine by a screw conveyor to be extruded and molded. And (2) sending the formed cow dung (spherical, massive, honeycomb, strip and the like, wherein the spherical shape is adopted in the present position and is determined according to actual conditions) into a dung drying treatment system through a reticular stainless steel conveyor belt for low-temperature drying, and controlling the moisture content of the discharged material to be about 40% by controlling the retention time of the material in a drying machine (the moisture content of the discharged material of the dried cow dung is determined by combining the heat value of the dried cow dung). After most of water vapor is removed from the waste gas generated in the drying treatment process through condensation of the dehumidification heat pump, part of the dehumidified waste gas flows back to the drying machine to be used as circulating supplementary air, the rest of the dehumidified waste gas is used as primary incineration air and is conveyed to the incinerator for incineration treatment, and the condensed waste water is conveyed to the waste water treatment system 2 for treatment. The cow dung after drying is delivered to a waste pool 102 of an incineration plant through a conveying system, a plate chain conveyor 101 is conveyed to the waste pool 102 through a Z-shaped plate chain conveyor, a material distribution device is arranged at an outlet of the plate chain conveyor 101, the cow dung discharging position can be adjusted by controlling the angle of a material distribution plate 104, and meanwhile, the material distribution device can effectively avoid the problem that the dried cow dung is tightly attached to the pool wall of the waste pool 102 to discharge materials, so that a waste grab bucket cannot grab. In the operation process, domestic garbage is required to be fully paved at the bottom in a cow dung distributing area in the garbage pool 102, cow dung is distributed in the area, cow dung feeding is temporarily and dryly performed by controlling extrusion dehydration and cow dung drying speed after distributing is completed, the distributing plate 104 is closed, after the cow dung and the domestic garbage are grabbed by the garbage grab bucket and mixed according to a certain furnace entering proportion, the mixed material is sent to the garbage hopper to be incinerated in coordination for power generation, after grabbing is completed, the fermented domestic garbage is re-stacked in a cow dung distributing area, and batch operation is performed.
The invention provides a device for molding and drying manure and cooperatively incinerating domestic garbage, which aims to prepare organic fuel by using manure such as cow dung, and the method for molding and drying manure and cooperatively incinerating domestic garbage solves the problems of large occupied area and environment caused by manure accumulation on one hand, and on the other hand, when the manure is incinerated as fuel, the manure is dried by adopting a drying process, and the manure and the domestic garbage are cooperatively incinerated (different from mixed combustion with less than 10% of treatment amount), so that the problems of small design scale of incineration treatment and high investment in ton garbage caused by insufficient amount of medium and small municipal domestic garbage can be solved, and the generated waste gas is systematically and effectively treated, the problem of waste gas pollution is controlled, and the aims of recycling and harmless treatment of cow manure are fulfilled.
During the construction of the actual site selection, the excrement treatment plant can be built to be close to the garbage incineration plant by depending on the construction of the garbage incineration plant, water, electricity and steam required by excrement drying are provided by the garbage incineration plant, the dried excrement, the generated waste gas and the household garbage are incinerated in a synergistic manner, and the generated waste water and the household garbage percolate are jointly built into the waste water treatment system 2 for treatment. The method not only can solve the problem of insufficient treatment capacity of the household garbage, but also can realize the full-scale treatment of the excrement, and save investment and operation cost.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.

Claims (10)

1. A coprocessing incineration treatment device for manure molding and drying and household garbage is characterized by comprising a manure drying treatment system, a wastewater treatment system and an incineration power generation and flue gas treatment system;
wherein, excrement material mummification processing system is including the receiving mechanism who is used for receiving excrement material, the excrement material equalizing basin that is used for adjusting excrement material moisture content, the mixer that is used for stirring excrement material, the hydroextractor that is used for excrement material dehydration and be used for excrement material shaping and the dry shaping mechanism of mummification processing, receiving mechanism's entry be used for connecing material and export with the entry butt joint of excrement material equalizing basin, the export of excrement material equalizing basin with the entry butt joint of hydroextractor, set up in the excrement material equalizing basin the mixer, the waste water outlet of hydroextractor with the waste water treatment system butt joint, the solid export of hydroextractor with the entry butt joint of shaping drying mechanism, the gas outlet of shaping drying mechanism respectively with the supplementary circulation gas port of shaping drying mechanism with incineration power generation and flue gas treatment system butt joint, the condensation waste water outlet of the production of shaping drying mechanism with the waste water treatment system butt joint, and a solid outlet of the forming and drying mechanism is in butt joint with the garbage pool and finally enters the incineration power generation and flue gas treatment system for treatment.
2. The coproaked material forming and drying and household garbage collaborative incineration treatment device according to claim 1, characterized in that a temporary storage tank is arranged between a wastewater outlet of the dehydrator and the wastewater treatment system, and a material conveying and distributing mechanism and the garbage tank are sequentially arranged between the drier and the incineration power generation and flue gas treatment system.
3. The coprocessing device for molding and drying manure and incinerating household garbage according to claim 2, wherein a first outlet of the temporary storage tank is in butt joint with an inlet of the manure adjusting tank and a second outlet is in butt joint with an inlet of the wastewater treatment system;
and/or a solid outlet of the garbage pool is in butt joint with an inlet of the incineration power generation and flue gas treatment system, and a leachate outlet is in butt joint with an inlet of the wastewater treatment system;
and/or a first wastewater outlet of the dehydrator is in butt joint with an inlet of the wastewater treatment system, and a second wastewater outlet of the dehydrator is in butt joint with an inlet of the manure adjusting tank.
4. The coprocessing device for incineration of manure molding and drying and household garbage according to claim 1, wherein the receiving mechanism comprises a discharge hopper and a crusher, the discharge hopper is provided with a gas collecting hood and a discharge quick-opening door, an outlet of the discharge hopper is butted with an inlet of the crusher, and an outlet of the crusher is butted with an inlet of the manure adjusting tank.
5. The coprocessing device of the molding and drying of the manure and the domestic garbage in coordination with the incineration disposal as claimed in claim 1, wherein the molding and drying mechanism comprises the extrusion molding machine and the drying machine; wherein the content of the first and second substances,
the solid outlet of the dehydrator is in butt joint with the inlet of the extrusion molding machine, the outlet of the extrusion molding machine is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system respectively, the condensed wastewater outlet of the drier is in butt joint with the wastewater treatment system, and the solid outlet of the drier is in butt joint with the garbage pool and finally enters the incineration power generation and flue gas treatment system for treatment;
or the solid outlet of the dehydrator is in butt joint with the inlet of the drier, the gas outlet of the drier is in butt joint with the supplementary circulating gas port of the drier and the incineration power generation and flue gas treatment system respectively, the condensed wastewater outlet of the drier is in butt joint with the wastewater treatment system, the solid outlet of the drier is in butt joint with the inlet of the extrusion molding machine, and the outlet of the extrusion molding machine is in butt joint with the garbage pool and finally enters the incineration power generation and flue gas treatment system for treatment.
6. The coprocessing device for incineration of manure molding and drying and household garbage according to claim 5, wherein the material conveying and distributing mechanism is arranged at the downstream of the drying machine, the material conveying and distributing mechanism comprises a plate chain conveyor and a material distributing plate, and the material distributing plate is arranged at an outlet of the plate chain conveyor.
7. The coprocessing device of the molding and drying of the manure and the domestic garbage together with the incineration disposal of the claim 6, wherein one end of the distributing plate is hinged with the plate chain conveyor, and the other end pulls the swinging angle of the distributing plate through a rope;
the cloth conveying mechanism further comprises a cloth plate adjusting motor and a pulley, the output end of the cloth plate adjusting motor is connected with the rope, and the pulley is used for guiding the rope.
8. The coprocessing device for incineration of formed and dried manure and household garbage according to claim 1, wherein a water supply pump for supplying water and a material delivery pump for feeding material to the dewatering machine are arranged in the manure adjusting tank.
9. A coprocessing method for shaping and drying manure and incinerating household garbage is characterized by comprising the following steps:
s1, receiving the manure, and adjusting the moisture content of the manure in a stirring manner to form the manure in a semi-fluid state;
s2, dehydrating the manure in the semi-fluid state, using part of wastewater generated by the manure as backflow tempering water for adjusting the moisture content of the manure, performing wastewater treatment on the rest of wastewater, and performing compression molding and drying treatment on solids generated by the manure;
s3, carrying out wastewater treatment on condensation wastewater generated by dehumidifying the waste gas after drying treatment, wherein one part of the dehumidified waste gas is used as circulating make-up gas of a manure drying treatment system and flows back to the manure drying treatment system, the other part of the dehumidified waste gas is subjected to incineration treatment in an incinerator, and the solid manure after drying treatment and the household garbage are mixed and then are incinerated cooperatively to generate power.
10. The coprocessing method of shaping and drying manure and household garbage according to claim 9, wherein the moisture content of semi-liquid manure in step S1 is 80% -95%, the moisture content of dehydrated solid manure in step S2 is 55% -70%, and the moisture content of dried solid manure in step S3 is 40% ± 10%.
CN202210606625.7A 2022-05-31 2022-05-31 Device and method for molding and drying manure and co-incinerating household garbage Pending CN115013818A (en)

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CN202210606625.7A CN115013818A (en) 2022-05-31 2022-05-31 Device and method for molding and drying manure and co-incinerating household garbage

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Application Number Priority Date Filing Date Title
CN202210606625.7A CN115013818A (en) 2022-05-31 2022-05-31 Device and method for molding and drying manure and co-incinerating household garbage

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CN115013818A true CN115013818A (en) 2022-09-06

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