CN110906342A - System and method for comprehensively treating hazardous waste by using cement kiln - Google Patents
System and method for comprehensively treating hazardous waste by using cement kiln Download PDFInfo
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- CN110906342A CN110906342A CN201811079745.6A CN201811079745A CN110906342A CN 110906342 A CN110906342 A CN 110906342A CN 201811079745 A CN201811079745 A CN 201811079745A CN 110906342 A CN110906342 A CN 110906342A
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- 239000002920 hazardous waste Substances 0.000 title claims abstract description 93
- 239000004568 cement Substances 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002699 waste material Substances 0.000 claims abstract description 82
- 239000007788 liquid Substances 0.000 claims abstract description 66
- 239000007787 solid Substances 0.000 claims abstract description 60
- 239000000463 material Substances 0.000 claims abstract description 10
- 238000003860 storage Methods 0.000 claims description 58
- 239000007921 spray Substances 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 9
- 230000009471 action Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 7
- 239000002912 waste gas Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims 3
- 229910001873 dinitrogen Inorganic materials 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 230000008901 benefit Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 238000004056 waste incineration Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 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 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 239000013072 incoming material Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 231100000683 possible toxicity Toxicity 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
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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
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/48—Solid fuels essentially based on materials of non-mineral origin on industrial residues and waste materials
-
- 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
-
- 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
- B01D2029/033—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 bar screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0233—Other waste gases from cement factories
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a system for comprehensively treating dangerous waste by a cement kiln, aiming at providing a method capable of meeting the comprehensive treatment of dangerous waste in different states; the system comprises a solid hazardous waste disposal unit, a semi-solid hazardous waste disposal unit and a liquid hazardous waste disposal unit; the solid hazardous waste disposal unit, the semi-solid hazardous waste disposal unit and the liquid hazardous waste disposal unit work independently, and the hazardous waste is respectively sent to different feeding points of a cement kiln to be incinerated according to material properties; the solid, semi-solid and liquid hazardous waste disposal units can also work in cooperation with each other to better improve the disposal performance of the system. The system has a simple structure, utilizes the characteristics of high linear temperature, good thermal stability, large volume and the like of the cement kiln, harmlessly treats and recycles the dangerous wastes in different states, and realizes the combination of the incineration treatment of the dangerous wastes and the energy conservation and emission reduction of the cement industry.
Description
Technical Field
The invention belongs to the field of industrial hazardous waste treatment, and particularly relates to a system and a method for comprehensively treating hazardous waste by using a cement kiln.
Background
At present, the dangerous waste is a special type of hazardous waste and has the characteristics of inflammability, explosiveness, corrosiveness, chemical reactivity and potential toxicity and infectivity to human bodies. The production of dangerous waste in China is on the rise year by year. At present, hazardous waste is mainly subjected to harmless treatment by a company with the capital for hazardous waste treatment, and the harmless treatment mainly comprises methods such as incineration, landfill, materialization and the like, wherein the reduction of the incineration treatment is most obvious, and the harmless treatment is most thorough, so that the application rate in the market is large.
The special incinerator type of the dangerous waste mainly comprises a rotary incinerator, a mechanical grate incinerator, a fluidized bed incinerator, a liquid injection furnace, a multi-chamber incinerator, a cyclone incinerator and the like, and the rotary kiln has relative advantages in controllability and automation due to incineration equipment, can adapt to solid, liquid and semi-solid waste, and is a mainstream incinerator type for dangerous waste disposal at present. However, the hazardous waste has more components and complex physical and chemical properties, and the composition, heat value, shape and combustion state of the hazardous waste in different batches are greatly changed, and the composition and the property of waste gas generated after combustion are changed, so that the requirements on the comprehensive management and control capability of enterprises and the quality of staff are higher for hazardous waste incineration besides the higher technical requirements on incineration equipment.
With the continuous emphasis on environmental protection in the cement industry, the comprehensive treatment of hazardous wastes by using cement kilns is started in China, and a plurality of enterprises build respective cement kiln comprehensive treatment demonstration projects successively, and 35 cement enterprises with cement kiln comprehensive treatment hazardous waste operation licenses in China up to the end of 2017 in 5 months prove that the treatment scale is more than 200 million tons. The cement kiln has the characteristics of high temperature, good thermal stability, large volume and the like, hazardous waste is comprehensively treated by utilizing the cement kiln, so that large-scale harmless treatment of various hazardous wastes can be realized, and the hazardous waste can be brought into a cement kiln system to realize resource utilization. In addition, under the high-temperature alkaline condition of the cement kiln, secondary pollution caused by dioxin, heavy metals and the like can be effectively avoided. Compared with the conventional hazardous waste incineration technology, the cement kiln has obvious advantages of synergistic comprehensive treatment.
Disclosure of Invention
The invention aims to provide a system and a method for comprehensively treating hazardous waste by using a cement kiln.
In order to achieve the purpose, the invention adopts the following technical scheme:
a system for comprehensively treating hazardous waste by a cement kiln comprises a solid hazardous waste treatment unit, a semi-solid hazardous waste treatment unit and a liquid hazardous waste treatment unit. The solid hazardous waste disposal unit comprises a storage workshop, a transport vehicle, a lifting machine, a crusher, a material pusher, a first screw conveyor, a solid bin, a weighing belt, a large-inclination-angle belt and an air-locking feeding device; the semi-solid hazardous waste disposal unit comprises a discharge workshop, a cleaning device, a semi-solid hazardous waste transport vehicle, a bin cover plate, a filter grid, a storage pit, a sliding frame, a second screw conveyor, a plunger pump and a special spray gun; the liquid hazardous waste disposal unit comprises a high-calorific-value waste liquid storage tank, a low-calorific-value waste liquid storage tank, a pneumatic diaphragm pump and a valve for controlling the flow direction of waste liquid.
Furthermore, in the solid hazardous waste disposal unit, the crusher adopts a shear type crusher, and nitrogen is filled in the crushing process for explosion protection.
Further, semi-solid state hazardous waste handles unit, semi-solid state hazardous waste storage pit entry is equipped with the filtration grid to filter out the bold and endanger useless.
Further, the liquid hazardous waste disposal unit is provided with a high-calorific-value waste liquid storage tank and a low-calorific-value waste liquid storage tank, and the inlet section of the storage tanks is provided with a filter screen.
Further, the semi-solid dangerous waste enters a cement kiln, and the special spray gun is preferably homogenized and scattered by compressed air; before the high-calorific-value liquid dangerous waste enters the kiln head of the cement kiln, the tail end of the conveying pipeline is also provided with an atomizing spray gun.
Further, an exhaust system is arranged in the dangerous waste workshop and the unloading workshop of the dangerous waste, and when the system runs, the waste gas is sent to the kiln head of the cement kiln under the action of a fan to be incinerated; when the system stops working, the waste gas is introduced into the odor treatment device to be treated and discharged after reaching the standard.
The method for comprehensively disposing the dangerous waste system by using the cement kiln comprises the following steps: the flow of the solid hazardous waste disposal unit is as follows: solid hazardous waste is carried to the lifting machine from storing the workshop, promotes to the breaker entry and unloads, is equipped with the stoker on the breaker, and the material after the breakage is carried to solid-state storehouse through first screw conveyer and is stored, and the danger is useless to be sent into cement kiln tail decomposing furnace through weighing belt, big inclination belt, lock wind feeding device and is burnt and handle in the solid-state storehouse.
The flow of the semi-solid dangerous waste disposal unit is as follows: conveying the semi-solid dangerous waste into a discharging workshop through a semi-solid dangerous waste transport vehicle, opening a bin cover plate at the top of a storage pit during discharging, allowing the dangerous waste to enter the storage pit, storing the dangerous waste filtered by a filter grid at the bottom of the storage pit, continuously feeding the dangerous waste into a second spiral conveyor under the action of a sliding frame, and conveying the dangerous waste into a kiln tail of a cement kiln for incineration disposal through a plunger pump and a special spray gun in sequence; and the large impurities filtered by the filter grid are sent to a solid hazardous waste disposal unit for disposal.
The liquid hazardous waste disposal unit comprises the following processes: according to the material calorific value, the liquid hazardous waste is filtered and impurity-removed and then is respectively sent to a high calorific value waste liquid storage tank and a low calorific value waste liquid storage tank, and the waste liquid in the high calorific value waste liquid storage tank is directly sent to a cement line kiln head for incineration disposal under the action of a pneumatic diaphragm pump; when the waste liquid in the low heat value waste liquid storage tank gets into the system, then switch over the valve, directly go into semi-solid state danger with the waste liquid pump and handle in the unit storage storehouse, send into cement kiln tail along with semi-solid state danger and handle together, the water content that semi-solid state danger was useless decides is looked to the addition volume of low heat value waste liquid to the most do benefit to system transport and handling capacity and accurate.
The system has the advantages of simple structure, good flexibility, stable operation, small influence on cement lines and environment, and capability of performing harmless treatment on dangerous wastes in different states to the maximum extent by utilizing the characteristics of high temperature, good thermal stability, large volume and the like of a cement kiln line, and simultaneously, part of the dangerous wastes can be used as substitute raw materials and fuel for cement production, so that the combination of the dangerous waste incineration treatment and the energy conservation and emission reduction of the cement industry is realized.
Drawings
FIG. 1 is a process flow diagram of an embodiment of a system for integrated disposal of hazardous waste in a cement kiln according to the present invention;
1-storage workshop, 2-transport vehicle, 3-elevator, 4-crusher, 5-pusher, 6-first screw conveyor, 7-solid bin, 8-weighing belt, 9-large-inclination belt, 10-airlock feeding device, 11-cement kiln tail decomposing furnace, 12-discharge workshop, 13-cleaning device, 14-semi-solid hazardous waste transport vehicle, 15-bin cover plate, 16-filter grid, 17-storage bin, 18-carriage, 19-second screw conveyor, 20-second plunger pump, 21-special spray gun, 22-high-calorific-value waste liquid storage tank, 23-low-calorific-value waste liquid storage tank, 24-pneumatic diaphragm pump, 25-valve, 26-odor treatment device, 27-induced draft fan, a, waste liquid incoming material and B, cement kiln head.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in fig. 1, the system for comprehensively treating hazardous waste in a cement kiln of the embodiment includes a solid hazardous waste treatment unit, a semi-solid hazardous waste treatment unit and a liquid hazardous waste treatment unit. The solid hazardous waste disposal unit comprises a storage workshop 1, a transport vehicle 2, a lifting machine 3, a crusher 4, a material pushing device 5, a first screw conveyor 6, a solid bin 7, a weighing belt 8, a large-inclination-angle belt 9 and an air-locking feeding device 10; the semi-solid hazardous waste disposal unit comprises a discharge workshop 12, a cleaning device 13, a semi-solid hazardous waste transport vehicle 14, a bin cover plate 15, a filter grid 16, a storage pit 17, a sliding frame 18, a second screw conveyor 19, a plunger pump 20 and a special spray gun 21; the liquid hazardous waste disposal unit comprises a high-calorific-value waste liquid storage tank 22, a low-calorific-value waste liquid storage tank 23, a pneumatic diaphragm pump 24 and a valve 25 for controlling the flow direction of waste liquid.
In the solid hazardous waste disposal unit, the crusher 4 adopts a shear type crusher, and nitrogen is filled for protection in the crushing process.
In the semi-solid hazardous waste disposal unit, a filtering grid 16 is arranged at the inlet of a semi-solid hazardous waste storage pit 17 to filter out large materials in waste and prevent the normal operation of a system from being hindered.
The liquid hazardous waste disposal unit is provided with a high-calorific-value waste liquid storage tank 22 and a low-calorific-value waste liquid storage tank 23, and the inlet section of the waste liquid storage tank is provided with a filter screen to prevent impurities from influencing the subsequent atomization effect of spraying into a cement kiln line.
The semi-solid dangerous waste enters a cement kiln, and compressed air is preferably used as a medium for homogenizing and scattering by the special spray gun 21; before the high-calorific-value liquid dangerous waste enters the kiln head of the cement kiln, the tail end of the conveying pipeline is also provided with an atomizing spray gun.
The dangerous waste storage workshop 1 and the unloading workshop 12 are provided with exhaust systems, and when the systems operate, waste gas is sent to a cement kiln line to be burnt; when the system stops working, the waste gas is introduced into the odor treatment device 26 through the induced draft fan 27, and is discharged to the outside after reaching the standard after being treated.
The method for comprehensively treating the hazardous waste system by using the cement kiln comprises the following steps:
solid hazardous waste disposal unit flow: solid hazardous waste is carried to lifting machine 3 from storing workshop 1, promotes to breaker 4 entry and unloads, is equipped with stoker 5 on the breaker 4, and the material after the breakage is carried to solid-state storehouse 7 through first screw conveyer 6 and is stored, and the hazardous waste in solid-state storehouse 7 is sent into cement kiln tail 11 dore through weighing belt 8, big inclination belt 9, lock wind feeding device 10 and is burnt the processing.
The flow of the semi-solid hazardous waste disposal unit is as follows: semi-solid dangerous waste is conveyed into a discharging workshop 12 through a semi-solid dangerous waste transport vehicle 14, a bin cover plate 15 is opened at the top of a storage pit 17 during discharging, the dangerous waste enters the storage pit 17, the dangerous waste filtered by a filter grid 16 is stored at the bottom 17 of the storage pit, the dangerous waste continuously enters a second spiral conveyor 19 under the action of a sliding frame 18, and the dangerous waste is conveyed into a kiln tail 11 of the cement kiln for incineration disposal through a plunger pump 20 and a special spray gun 21 in sequence; and the large impurities filtered by the filtering grid 16 are sent to a solid hazardous waste disposal unit for disposal.
The liquid hazardous waste disposal unit flow is as follows: according to the material calorific value, the liquid hazardous waste is filtered and impurity-removed and then is respectively sent to a high calorific value waste liquid storage tank 22 and a low calorific value waste liquid storage tank 23, and the waste liquid in the high calorific value waste liquid storage tank 22 is directly sent to a cement line kiln head for incineration disposal under the action of a pneumatic diaphragm pump 24; when the waste liquid in the low-heat-value waste liquid storage tank 23 enters the system, the valve 25 is switched, the waste liquid is pumped into the semi-solid hazardous waste disposal unit storage bin 17 and is sent into the kiln tail 11 of the cement kiln to be disposed along with the semi-solid hazardous waste, and the adding amount of the low-heat-value waste liquid is determined according to the water content of the semi-solid hazardous waste, so that the system transportation and the disposal amount are facilitated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the spirit of the present invention, and these modifications and decorations should also be regarded as being within the scope of the present invention.
Claims (10)
1. The utility model provides a system for hazardous waste is handled comprehensively to cement kiln, includes that solid-state hazardous waste handles unit, semi-solid state hazardous waste handles unit, liquid hazardous waste handles unit, exhaust-gas treatment unit and cement kiln tail dore (11), solid-state hazardous waste handles unit and semi-solid state hazardous waste handles unit one end and all is connected with cement kiln tail dore (11) entry, and the other end all is connected with exhaust-gas treatment unit, and liquid hazardous waste handles the unit and is connected with semi-solid state hazardous waste handles the unit through the pipeline.
2. The system for comprehensively disposing hazardous wastes in a cement kiln as claimed in claim 1, wherein the solid hazardous waste disposal unit comprises a storage workshop (1), a transport vehicle (2), a lifter (3), a crusher (4), a pusher (5), a first screw conveyor (6), a solid bin (7), a weighing belt (8), a large-inclination-angle belt (9) and an air-locking feeding device (10); store up workshop (1) and be connected with the exhaust-gas treatment unit, store up workshop (1) in lifting machine (3) one end connection, breaker (4) are connected to the other end, breaker (4) top is equipped with stoker (5), breaker (4) bottom is equipped with first screw conveyer (6), and be connected with first screw conveyer (6) entry, first screw conveyer (6) export is connected with solid-state storehouse (7) entry, solid-state storehouse (7) export below is equipped with weighing belt (8), weighing belt (8) are connected to big inclination belt (9) one end, lock wind feeding device (10) are connected to the other end, wind feeding device (10) are connected with cement kiln tail decomposing furnace (11) entry.
3. The system for comprehensive disposal of hazardous waste in cement kiln as claimed in claim 1, wherein said semi-solid hazardous waste disposal unit comprises a discharge workshop (12), a cleaning device (13), a semi-solid hazardous waste transport vehicle (14), a cover plate (15), a filter grid (16), a storage bin (17), a carriage (18), a second screw conveyor (19), a plunger pump (20) and a special spray gun (21); the discharging workshop (12) is connected with the waste gas treatment unit, the inside is equipped with belt cleaning device (13), the bottom is equipped with storehouse apron (15), storehouse apron (15) below is storage bin (17), storage bin (17) top of position under storehouse apron (15) is equipped with filtering grid (16), storage bin (17) bottom is equipped with balladeur train (18), storage bin (17) and second screw conveyer (19) are connected in balladeur train (18), second screw conveyer (19) are connected with plunger pump (20) entry again, plunger pump (20) export is connected with cement kiln tail decomposing furnace (11) entry through the pipeline, be equipped with special spray gun (21) in cement kiln tail decomposing furnace (11) entry.
4. The system for comprehensively disposing hazardous wastes in a cement kiln as claimed in claim 1, wherein the liquid hazardous waste disposal unit comprises a high calorific value waste liquid storage tank (22), a low calorific value waste liquid storage tank (23), a pneumatic diaphragm pump (24) and a valve (25) for controlling the flow direction of the waste liquid, the high calorific value waste liquid storage tank (22) and the low calorific value waste liquid storage tank (23) are connected with the storage bin (17) and the kiln head of the cement kiln through pipelines, the pneumatic diaphragm pump (24) is arranged on the pipelines, and the branch pipelines connected with the storage bin (17) and the cement kiln are respectively provided with the valve (25).
5. The system for cement kiln integrated disposal of hazardous waste as set forth in claim 2, wherein the crusher (4) is a shear crusher.
6. The system for comprehensive disposal of hazardous waste in cement kiln as claimed in claim 5, wherein said shear crusher is charged with nitrogen gas for protection during crushing.
7. The system for comprehensive disposal of hazardous waste in cement kiln as claimed in claim 3, wherein the working medium of the dedicated lance (21) is compressed air.
8. The system for comprehensive disposal of hazardous waste in cement kiln as claimed in claim 4, wherein the inlet sections of the high calorific value waste liquid storage tank (22) and the low calorific value waste liquid storage tank (23) are provided with filtering screens.
9. The system for integrated disposal of hazardous waste in cement kiln according to any one of claims 1-8, wherein: the waste gas treatment unit is an induced draft fan (27) and an odor treatment device (26).
10. A method for a system for comprehensively treating hazardous wastes by a cement kiln comprises the following steps: the flow of the solid hazardous waste disposal unit is as follows: solid-state dangerous waste is carried to lifting machine (3) from storing workshop (1), promotes to breaker (4) entry and unloads, is equipped with stoker (5) on breaker (4), and the material after the breakage is carried to solid-state storehouse (7) through first screw conveyer (6), and danger waste in solid-state storehouse (7) is sent into cement kiln tail (11) dore through weighing belt (8), big inclination belt (9), lock wind feeding device (10) and is burnt.
The flow of the semi-solid dangerous waste disposal unit is as follows: semi-solid dangerous waste is conveyed into a discharging workshop (12) through a semi-solid dangerous waste transport vehicle (14), a bin cover plate (15) is opened at the top of a storage bin (17) during discharging, the dangerous waste filtered by a filtering grid (16) enters the bottom of the storage bin (17), enters a second spiral conveyor (19) under the action of a sliding frame (18), and then is conveyed into a cement kiln tail (11) through a plunger pump (20) and a special spray gun (21) in sequence for incineration disposal; the large sundries filtered out by the filter grating (16) are sent to a solid hazardous waste disposal unit for disposal.
The liquid hazardous waste disposal unit comprises the following processes: according to the material calorific value, the liquid hazardous waste is filtered and impurity-removed and then is respectively sent to a high calorific value waste liquid storage tank (22) and a low calorific value waste liquid storage tank (23), and the waste liquid in the high calorific value waste liquid storage tank (22) is directly sent to a kiln head of a cement line for incineration disposal under the action of a pneumatic diaphragm pump (24); and (3) switching a valve (25), and feeding the waste liquid in the low-calorific-value waste liquid storage tank (23) into a storage bin (17) and sending the waste liquid into a kiln tail (11) of the cement kiln along with the semi-solid hazardous waste for disposal.
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| CN201811079745.6A CN110906342A (en) | 2018-09-14 | 2018-09-14 | System and method for comprehensively treating hazardous waste by using cement kiln |
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| CN201811079745.6A CN110906342A (en) | 2018-09-14 | 2018-09-14 | System and method for comprehensively treating hazardous waste by using cement kiln |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960923A (en) * | 2021-03-11 | 2021-06-15 | 将乐金牛水泥有限公司 | Method for treating solid waste fly ash |
| CN113007724A (en) * | 2021-03-30 | 2021-06-22 | 北京金隅北水环保科技有限公司 | Device and method for incineration treatment of urban waste resources |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984983A (en) * | 1989-02-07 | 1991-01-15 | F. L. Smidth & Co. A/S | Method of cofiring hazardous waste in industrial rotary kilns |
| CN1887762A (en) * | 2006-07-14 | 2007-01-03 | 北京金隅红树林环保技术有限责任公司 | Solid waste treating process |
| JP2011079709A (en) * | 2009-10-08 | 2011-04-21 | Taiheiyo Cement Corp | Method and apparatus for converting waste into cement fuel |
| CN105485698A (en) * | 2016-01-15 | 2016-04-13 | 浙江环立环保科技有限公司 | Treating system and method for incinerating high-water-content solid waste in cement kiln |
| CN106066042A (en) * | 2016-08-01 | 2016-11-02 | 北京北控环保工程技术有限公司 | Danger wastes cleaning treatment system |
| CN106122980A (en) * | 2016-08-10 | 2016-11-16 | 广州维港环保科技有限公司 | A kind of process system for cement kiln synergic processing hazardous waste |
| CN206682950U (en) * | 2017-03-09 | 2017-11-28 | 杭州易辉环保科技有限公司 | A kind of cement kiln synergic processing waste packing articles burning processing system |
| CN208936160U (en) * | 2018-09-14 | 2019-06-04 | 南京凯盛开能环保能源有限公司 | A kind of system of cement kiln joint disposal danger wastes |
-
2018
- 2018-09-14 CN CN201811079745.6A patent/CN110906342A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4984983A (en) * | 1989-02-07 | 1991-01-15 | F. L. Smidth & Co. A/S | Method of cofiring hazardous waste in industrial rotary kilns |
| CN1887762A (en) * | 2006-07-14 | 2007-01-03 | 北京金隅红树林环保技术有限责任公司 | Solid waste treating process |
| JP2011079709A (en) * | 2009-10-08 | 2011-04-21 | Taiheiyo Cement Corp | Method and apparatus for converting waste into cement fuel |
| CN105485698A (en) * | 2016-01-15 | 2016-04-13 | 浙江环立环保科技有限公司 | Treating system and method for incinerating high-water-content solid waste in cement kiln |
| CN106066042A (en) * | 2016-08-01 | 2016-11-02 | 北京北控环保工程技术有限公司 | Danger wastes cleaning treatment system |
| CN106122980A (en) * | 2016-08-10 | 2016-11-16 | 广州维港环保科技有限公司 | A kind of process system for cement kiln synergic processing hazardous waste |
| CN206682950U (en) * | 2017-03-09 | 2017-11-28 | 杭州易辉环保科技有限公司 | A kind of cement kiln synergic processing waste packing articles burning processing system |
| CN208936160U (en) * | 2018-09-14 | 2019-06-04 | 南京凯盛开能环保能源有限公司 | A kind of system of cement kiln joint disposal danger wastes |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960923A (en) * | 2021-03-11 | 2021-06-15 | 将乐金牛水泥有限公司 | Method for treating solid waste fly ash |
| CN113007724A (en) * | 2021-03-30 | 2021-06-22 | 北京金隅北水环保科技有限公司 | Device and method for incineration treatment of urban waste resources |
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