CN111998354A - Cement kiln household garbage treatment device and method - Google Patents
Cement kiln household garbage treatment device and method Download PDFInfo
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- CN111998354A CN111998354A CN202010687112.4A CN202010687112A CN111998354A CN 111998354 A CN111998354 A CN 111998354A CN 202010687112 A CN202010687112 A CN 202010687112A CN 111998354 A CN111998354 A CN 111998354A
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- garbage
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- incinerator
- cement kiln
- waste liquid
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 100
- 239000004568 cement Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002699 waste material Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 20
- 239000002893 slag Substances 0.000 claims abstract description 19
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000003546 flue gas Substances 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 230000001877 deodorizing effect Effects 0.000 claims abstract description 3
- 238000002485 combustion reaction Methods 0.000 claims description 13
- 239000010791 domestic waste Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 230000008020 evaporation Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000000354 decomposition reaction Methods 0.000 claims 1
- 230000014759 maintenance of location Effects 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 description 5
- 239000002912 waste gas Substances 0.000 description 5
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 238000004332 deodorization Methods 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 231100000614 poison Toxicity 0.000 description 2
- 239000003440 toxic substance Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000149 chemical water pollutant Substances 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Classifications
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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
- F23G5/033—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
- B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B7/00—Hydraulic cements
- C04B7/36—Manufacture of hydraulic cements in general
- C04B7/43—Heat treatment, e.g. precalcining, burning, melting; Cooling
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Ceramic Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a cement kiln household garbage treatment device and method, and relates to the technical field of garbage treatment. The garbage can comprises a garbage can, wherein one side of the garbage can is provided with a discharging hall; the top of the garbage pool is provided with a grab bucket, the bottom of the garbage pool is provided with a filtering device, one side of the bottom of the garbage pool is connected with a waste liquid pool, and the garbage pool is internally provided with a deodorizing device; the garbage pool is connected with reducing mechanism, and reducing mechanism is connected with through the conveyer and burns burning furnace, burns burning furnace and is connected with the dore furnace, burns burning furnace and is connected with the sediment pond through arranging the sediment device, arranges the sediment device and includes slag extractor and belt conveyor. According to the invention, the temperature of the flue gas in the decomposing furnace is set to be more than 850 ℃, the retention time is more than 7 seconds, so that the molecular structure of toxic and harmful substances in the flue gas is thoroughly destroyed, and the national emission standard is reached.
Description
Technical Field
The invention belongs to the technical field, and particularly relates to a cement kiln household garbage treatment device and method.
Background
Along with the improvement of living standard of people, the discharge of domestic garbage is more and more. At present, the stock of municipal solid waste in China reaches 60 hundred million tons, occupies 5 hundred million square meters of cultivated land, produces 2 hundred million tons of municipal solid waste every year, and is rapidly increased by 9 percent. These huge amounts of domestic waste have posed a growing threat to the urban and periurban ecological environment. The traditional garbage disposal methods comprise a landfill method, a composting method and an incineration method, the municipal garbage disposal in China starts late, and the sanitary landfill is mainly used at present. Although waste incineration and power plants are built in some cities, the waste incineration method still has a certain controversy at present due to the problems of low treatment capacity, and discharge of harmful gas (dioxin), sewage (landfill leachate), waste residues (high heavy metal content) and the like in the treatment process. The unique production process of cement production provides excellent conditions for treating municipal domestic waste, and domestic waste is treated by using a cement kiln in cooperation with foreign countries for nearly 30 years.
The cement kiln is utilized to cooperatively treat the municipal domestic garbage, so that on one hand, odor and toxic substances in the garbage treatment process can be eliminated by utilizing the cement firing system; on the other hand, ash generated by burning the garbage can be used as a cement admixture, and toxic substances in the garbage can be decomposed into corresponding inorganic substances and heavy metals to be solidified in cement clinker. Meanwhile, part of high-temperature waste gas generated by the cement kiln system can be used as a supplementary heat source or a whole heat source for waste incineration, so that the incineration process of the waste is more sufficient, and the emission of dioxin is further reduced.
Disclosure of Invention
The invention aims to provide a cement kiln domestic garbage treatment device and a method, which are characterized in that an incinerator is combined with a cement production process technology, waste gas generated after garbage combustion is introduced into a decomposing furnace of a novel dry-method cement kiln system, and harmful gases such as dioxin generated by garbage are further absorbed and treated by utilizing the high-temperature alkaline condition about 850 ℃ in the decomposing furnace, so that the garbage treatment meets the emission requirement.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a cement kiln household garbage treatment device and a method, and the cement kiln household garbage treatment device comprises a garbage pool, wherein one side of the garbage pool is provided with a discharging hall; a grab bucket is arranged at the top of the garbage pool, a filtering device is arranged at the bottom of the garbage pool, one side of the bottom of the garbage pool is connected with a waste liquid pool, and a deodorizing device is arranged in the garbage pool; the garbage pool is connected with a smashing device, the smashing device is connected with an incinerator through a conveyor, the incinerator is connected with a decomposing furnace, the incinerator is connected with a slag pool through a slag discharging device, and the slag discharging device comprises a slag discharging machine and a belt conveyor.
Further, a weighbridge is arranged in the unloading hall.
Further, the waste liquid pool is connected with the decomposing furnace through a filter pump.
Further, the garbage pool is connected with the incinerator through a centrifugal fan.
The cement kiln domestic garbage treatment method comprises the following steps: the garbage truck is weighed in the unloading hall and then dumps the garbage into the garbage pool, the garbage waste liquid in the garbage pool is stored in the waste liquid pool through the filtering device, the garbage in the garbage pool is conveyed into the crushing device through the grab bucket to be crushed, the crushed garbage is conveyed into the incinerator through the conveyor to be burned, dried and vaporized, and the gas generated by the garbage in the incinerator is conveyed into the decomposing furnace through the high-temperature channel to participate in combustion; waste residues generated by the garbage in the incinerator are discharged to a residue pool through a residue discharge device and then are transported away by a residue transport vehicle; the waste liquid in the waste liquid pool is pumped by a filter pump, atomized and sprayed into the decomposing furnace by a high-pressure spray gun for high-temperature evaporation and oxidation treatment, one part of air containing odor in the waste pool is pumped by a centrifugal fan and conveyed into the incinerator to participate in combustion as a combustion improver, and the other part of air provides hot air into the incinerator through the grate cooler.
Further, the garbage pool is in a fully-closed negative pressure state.
Further, the temperature of the outlet flue gas after combustion of the incinerator is 850-950 ℃.
Further, the temperature of the flue gas in the decomposing furnace is more than 850 ℃, and the retention time is more than 7 seconds.
The invention has the following beneficial effects:
1. the garbage incinerator is convenient for conveying and completely burning garbage by crushing the garbage before burning;
2. according to the invention, the temperature of the flue gas in the decomposing furnace is set to be more than 850 ℃, the retention time is more than 7 seconds, so that the molecular structure of toxic and harmful substances in the flue gas is thoroughly destroyed, and the national emission standard is reached;
3. according to the invention, the garbage pool is designed into a fully-closed negative pressure structure, so that the leakage of harmful gas is prevented, and meanwhile, waste gas is introduced into the incinerator for combustion supporting, so that the harmless treatment of the waste gas is realized.
Of course, it is not necessary for any product in which the invention is practiced to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
in the drawings, the components represented by the respective reference numerals are listed below:
1-garbage pool, 2-discharge hall, 3-weighbridge, 4-waste liquid pool, 5-deodorization device, 6-grab bucket, 7-filtering device, 8-crushing device, 9-conveyor, 10-filter pump, 11-incinerator, 12-centrifugal fan, 13-slag extractor, 14-belt conveyor, 15-slag pool and 16-decomposing furnace.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "side," "bottom," "lower," "top," "middle," "length," "inner," and the like are used merely for convenience in describing the invention and to simplify the description, and do not indicate or imply that the referenced components or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be considered as limiting the invention.
Referring to fig. 1, the invention relates to a cement kiln household garbage treatment device, which comprises a garbage pool 1, wherein one side of the garbage pool 1 is provided with a discharging hall 2, the top of the garbage pool 1 is provided with a material grabbing bucket 6, the bottom of the garbage pool 1 is provided with a filtering device 7, one side of the bottom of the garbage pool 1 is connected with a waste liquid pool 4, and the garbage pool 1 is internally provided with a deodorization device 5; the garbage pool 1 is connected with a crushing device 8, the crushing device 8 is connected with an incinerator 11 through a conveyor 9, the incinerator 11 is connected with a decomposing furnace 16, the incinerator 11 is connected with a slag pool 15 through a slag discharging device, and the slag discharging device comprises a slag discharging machine 13 and a belt conveyor 14.
Wherein, be equipped with the weighbridge 3 in the hall of unloading 2, be convenient for weigh the record to rubbish.
Wherein the waste liquid tank 4 is connected with the decomposing furnace 16 through a filter pump 10.
Wherein, the garbage pool 1 is connected with the incinerator 11 through a centrifugal fan 12.
The cement kiln domestic garbage treatment method comprises the following steps: the garbage truck is weighed in the unloading hall 2 and then dumps the garbage into the garbage pool 1, garbage waste liquid in the garbage pool 1 is stored in the waste liquid pool 4 through the filtering device 7, the garbage in the garbage pool 1 is conveyed into the crushing device 8 through the grab bucket 6 to be crushed, the crushed garbage is conveyed into the incinerator 11 through the conveyor 9 to be incinerated, dried and vaporized, and flue gas generated by the garbage in the incinerator 11 is conveyed into the decomposing furnace 16 through the high-temperature channel to participate in combustion; the waste slag produced in the incinerator 11 is discharged to a slag pool 15 through a slag discharge device and then is transported away by a slag transport vehicle; the waste liquid in the waste liquid pool 4 is pumped by a filter pump 10, atomized and sprayed into a decomposing furnace 16 by a high-pressure spray gun for high-temperature evaporation and oxidation treatment, one part of the air containing odor in the garbage pool 1 is pumped by a centrifugal fan 12 and conveyed into an incinerator 11 to be used as a combustion improver for combustion, and the other part of the air provides hot air into the incinerator 11 through a grate cooler.
Wherein, the garbage pool 1 is in a fully-closed negative pressure state, and the waste gas is prevented from leaking.
Wherein, the temperature of the outlet flue gas after burning in the incinerator 11 is 850-950 ℃, and the high temperature flue gas passes through the decomposing furnace 16 to be mixed with the high temperature flue gas in the decomposing furnace 16.
Wherein, the temperature of the flue gas in the decomposing furnace 16 is more than 850 ℃, the retention time is more than 7 seconds, and the harmful gas is fully oxidized and decomposed.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a cement kiln domestic waste processing apparatus which characterized in that: the garbage truck comprises a garbage pool (1), wherein a discharging hall (2) is arranged on one side of the garbage pool (1);
a grab hopper (6) is arranged at the top of the garbage pool (1), a filtering device (7) is arranged at the bottom of the garbage pool (1), a waste liquid pool (4) is connected to one side of the bottom of the garbage pool (1), and a deodorizing device (5) is arranged in the garbage pool (1);
the garbage pool (1) is connected with a smashing device (8), the smashing device (8) is connected with an incinerator (11) through a conveyor (9), the incinerator (11) is connected with a decomposing furnace (16), the incinerator (11) is connected with a slag pool (15) through a slag discharging device, and the slag discharging device comprises a slag discharging machine (13) and a belt conveyor (14).
2. A cement kiln household waste disposal device according to claim 1, characterized in that a weighbridge (3) is provided in the discharge hall (2).
3. The cement kiln household garbage disposal apparatus as recited in claim 1, wherein said waste liquid pool (4) is connected to said decomposing furnace (16) through a filter pump (10).
4. A cement kiln household garbage disposal device according to claim 1, wherein said garbage pool (1) is connected to said incinerator (11) by a centrifugal fan (12).
5. The cement kiln household garbage treatment method is characterized by comprising the following steps: the garbage truck is weighed in the unloading hall (2) and then dumps garbage into the garbage pool (1), garbage waste liquid in the garbage pool (1) is stored in the waste liquid pool (4) through the filtering device (7), the garbage in the garbage pool (1) is conveyed into the crushing device (8) through the material grabbing hopper (6) to be crushed, the crushed garbage is conveyed into the incinerator (11) through the conveyor (9) to be incinerated, dried and vaporized, and flue gas generated by the garbage in the incinerator (11) is conveyed into the decomposing furnace (16) through the high-temperature channel to participate in combustion; waste residues produced in the incinerator (11) are discharged to a residue pool (15) through a residue discharge device and then are transported away by a residue transport vehicle; the waste liquid in the waste liquid pool (4) is pumped by a filter pump (10), atomized and sprayed into a decomposing furnace (16) by a high-pressure spray gun for high-temperature evaporation and oxidation treatment, one part of the air containing odor in the garbage pool (1) is pumped by a centrifugal fan (12) and conveyed into an incinerator (11) to participate in combustion as a combustion improver, and the other part of the air provides hot air into the incinerator (11) through a grate cooler.
6. The cement kiln household garbage disposal method as defined in claim 5, wherein the garbage pool (1) is in a fully-closed negative pressure state.
7. The cement kiln household garbage disposal method as defined in claim 5, wherein the temperature of the outlet flue gas after the combustion of said incinerator (11) is 850-950 ℃.
8. The cement kiln domestic waste treatment method according to claim 5, wherein the flue gas temperature in the decomposition furnace (16) is above 850 ℃ and the residence time is above 7 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687112.4A CN111998354A (en) | 2020-07-16 | 2020-07-16 | Cement kiln household garbage treatment device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010687112.4A CN111998354A (en) | 2020-07-16 | 2020-07-16 | Cement kiln household garbage treatment device and method |
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| Publication Number | Publication Date |
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| CN111998354A true CN111998354A (en) | 2020-11-27 |
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| CN202010687112.4A Pending CN111998354A (en) | 2020-07-16 | 2020-07-16 | Cement kiln household garbage treatment device and method |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494809A (en) * | 2016-12-30 | 2017-03-15 | 安徽海螺川崎工程有限公司 | Rubbish receives discharge system |
| CN107631304A (en) * | 2017-11-03 | 2018-01-26 | 南京凯盛开能环保能源有限公司 | A kind of smoke circulating system suitable for cement kiln synergic processing house refuse |
| CN107917427A (en) * | 2017-11-03 | 2018-04-17 | 南京凯盛开能环保能源有限公司 | A kind of system and method for cement kiln synergic processing house refuse |
| CN208282121U (en) * | 2018-04-25 | 2018-12-25 | 中国联合工程有限公司 | Garbage burning factory has the garbage warehouse of crushing function |
| CN109834106A (en) * | 2019-01-29 | 2019-06-04 | 江苏华粮机械有限公司 | Garbage as resource intelligent processing system |
| CN210921410U (en) * | 2019-10-22 | 2020-07-03 | 南京凯盛开能环保能源有限公司 | Sludge disposal device based on cement kiln is refuse disposal system in coordination |
-
2020
- 2020-07-16 CN CN202010687112.4A patent/CN111998354A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106494809A (en) * | 2016-12-30 | 2017-03-15 | 安徽海螺川崎工程有限公司 | Rubbish receives discharge system |
| CN107631304A (en) * | 2017-11-03 | 2018-01-26 | 南京凯盛开能环保能源有限公司 | A kind of smoke circulating system suitable for cement kiln synergic processing house refuse |
| CN107917427A (en) * | 2017-11-03 | 2018-04-17 | 南京凯盛开能环保能源有限公司 | A kind of system and method for cement kiln synergic processing house refuse |
| CN208282121U (en) * | 2018-04-25 | 2018-12-25 | 中国联合工程有限公司 | Garbage burning factory has the garbage warehouse of crushing function |
| CN109834106A (en) * | 2019-01-29 | 2019-06-04 | 江苏华粮机械有限公司 | Garbage as resource intelligent processing system |
| CN210921410U (en) * | 2019-10-22 | 2020-07-03 | 南京凯盛开能环保能源有限公司 | Sludge disposal device based on cement kiln is refuse disposal system in coordination |
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Application publication date: 20201127 |