CN116105144A - Industrial waste incineration device and incineration method - Google Patents
Industrial waste incineration device and incineration method Download PDFInfo
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- CN116105144A CN116105144A CN202211571782.5A CN202211571782A CN116105144A CN 116105144 A CN116105144 A CN 116105144A CN 202211571782 A CN202211571782 A CN 202211571782A CN 116105144 A CN116105144 A CN 116105144A
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- waste
- incinerator
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- flue gas
- rotary kiln
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- 239000002440 industrial waste Substances 0.000 title claims abstract description 37
- 238000004056 waste incineration Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000007788 liquid Substances 0.000 claims abstract description 151
- 150000003839 salts Chemical class 0.000 claims abstract description 85
- 239000002699 waste material Substances 0.000 claims abstract description 82
- 239000003546 flue gas Substances 0.000 claims abstract description 66
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000002910 solid waste Substances 0.000 claims abstract description 60
- 239000010815 organic waste Substances 0.000 claims abstract description 24
- 239000002893 slag Substances 0.000 claims abstract description 20
- 239000007787 solid Substances 0.000 claims abstract description 19
- 238000004064 recycling Methods 0.000 claims abstract description 8
- 238000002485 combustion reaction Methods 0.000 claims description 16
- 238000000197 pyrolysis Methods 0.000 claims description 12
- 239000007921 spray Substances 0.000 claims description 9
- 239000000779 smoke Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 claims description 2
- 238000002844 melting Methods 0.000 abstract description 8
- 238000004939 coking Methods 0.000 abstract description 7
- 230000008018 melting Effects 0.000 abstract description 7
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000003570 air Substances 0.000 description 37
- 239000011819 refractory material Substances 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 4
- 239000002920 hazardous waste Substances 0.000 description 4
- 230000008020 evaporation Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000013589 supplement Substances 0.000 description 3
- 239000005416 organic matter Substances 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000126 substance 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
- F23G5/20—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having rotating or oscillating drums
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
-
- 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
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/446—Waste feed arrangements for liquid waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
-
- 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
- F23G7/04—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste liquors, e.g. sulfite liquors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L1/00—Passages or apertures for delivering primary air for combustion
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2203/00—Furnace arrangements
- F23G2203/20—Rotary drum furnace
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Gasification And Melting Of Waste (AREA)
- Incineration Of Waste (AREA)
Abstract
The invention provides an industrial waste incineration device and an incineration method, comprising a liquid incineration device and a solid incineration device; the liquid incineration device comprises a liquid jet incinerator and an air supply device; the top of the liquid jet incinerator is provided with a waste liquid jet orifice, and the lower section of the liquid jet incinerator is provided with a first flue gas port; a slag hole is arranged at the bottom of the liquid jet incinerator; the solid incineration device comprises a countercurrent rotary kiln; the tail end of the countercurrent rotary kiln is provided with a second flue gas port communicated with the first flue gas port; the head end of the countercurrent rotary kiln is provided with a solid waste inlet, and the top end of the head part of the countercurrent rotary kiln is provided with a flue gas outlet. The invention can solve the problems that in the prior art of recycling industrial organic waste salt, the high-concentration salt-containing organic waste liquid needs to be evaporated into solid waste salt and then is burnt, the treatment procedures are increased, the energy consumption is increased, and when the organic waste salt is burnt by adopting a forward-flow rotary kiln, the melting coking and the like are easy to occur.
Description
Technical Field
The invention relates to the technical field of industrial waste treatment, in particular to an industrial organic waste salt waste incineration device and an incineration method.
Background
High-temperature heat treatment is the most main means for removing organic matters in waste salt, and is usually an incineration or pyrolysis process. Among them, the incinerator type used for the incineration of waste salt at present mainly comprises a fluidized bed incinerator and a rotary kiln incinerator. The rotary kiln incinerator is a mainstream type for incinerating industrial hazardous waste at present, and is generally concurrent, namely the flue gas and the material flow are in the same direction. The concurrent rotary kiln solid feed, the liquid feed and the burner are all arranged at the rotary kiln head, when the solid and the liquid enter the rotary kiln at the same time, fluctuation of the incineration working condition in the rotary kiln is easy to cause, unstable operation working condition is caused, influence on subsequent flue gas treatment equipment is caused, and meanwhile, certain influence is also caused on operation of operators. When the downstream rotary kiln is used for treating waste salt, formed low-melting salt substances are easy to melt and coke at high temperature, so that the phenomenon of ring formation and slag hanging of the rotary kiln is caused, refractory materials are corroded, the burning efficiency is reduced, and the temperature fluctuation of a burning system is severe, the waste salt is not completely burnt and the process is difficult to control because the rotary kiln is provided with multiple inlets for feeding and the change of the characteristics of the waste salt is obvious.
Thus, most organic matter incineration facilities are currently designed for solid organic matter incineration, as in the following prior art: patent CN216557145U discloses a sleeve type balanced heating waste salt rotary kiln incineration treatment system, an indirect heating mode is adopted to remove organic matters in solid waste salt, patent CN216779827U discloses an industrial salt pyrolysis system, a vertical pyrolysis furnace system designed by utilizing the principle of a cyclone dust collector, patent CN216606620U discloses a continuous industrial waste salt microwave pyrolysis device, a microwave pyrolysis mode is adopted to remove organic matters in solid industrial salt, patent CN114472474a discloses an industrial salt recycling treatment system and method, wherein the industrial salt is firstly dried by a rotary kiln and then enters microwave pyrolysis to remove the organic matters, and patent CN106949482A discloses a waste salt continuous incineration treatment method, which needs to grind and crush the solid waste salt and then send waste salt particles into a vertical hot blast stove in an air conveying mode, and has strict requirements on granularity of the waste salt entering the hot blast stove.
From the above prior art, it can be seen that in any of the above methods, the direct incineration treatment of the high concentration organic salt-containing waste liquid is not involved, and the evaporation method is required to treat the high concentration organic salt-containing waste liquid to obtain solid waste salt, and then the incineration treatment is performed, so that not only is the treatment process increased, but also the energy consumption is increased during the evaporation treatment of the waste liquid.
In summary, an effective technology for directly incinerating solid organic waste salt and high-concentration organic salt-containing waste liquid simultaneously and solving the problems of ring formation and slag wall hanging of a rotary kiln caused by melting and coking of the inner wall of the rotary kiln is lacking at present.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an industrial waste incineration device and an incineration method, so as to solve the problems that in the prior art for recycling industrial organic waste salt, high-concentration organic salt-containing waste liquid needs to be evaporated into solid waste salt and then subjected to incineration treatment, so that the treatment procedure is increased, and meanwhile, the energy consumption is increased during evaporation treatment of the waste liquid, and when the organic waste salt is incinerated by adopting a forward-flow rotary kiln, melting coking is easy to occur, and the rotary kiln is looped, slag is hung on the wall, and the like.
The invention provides an industrial waste incineration device, which comprises a liquid incineration device and a solid incineration device; wherein the liquid incineration device comprises a liquid jet incinerator and an air supply device arranged on the liquid jet incinerator; a waste liquid jet orifice is arranged at the top of the liquid jet incinerator, and a first flue gas port is arranged at the lower section of the liquid jet incinerator; a slag hole is formed in the bottom of the liquid jet incinerator; the solid incineration device comprises a countercurrent rotary kiln; the tail end of the countercurrent rotary kiln is provided with a second smoke vent communicated with the first smoke vent; the head end of the countercurrent rotary kiln is provided with a solid waste inlet, and the top end of the head of the countercurrent rotary kiln is provided with a flue gas outlet.
In addition, it is preferable that a waste liquid spray gun is provided at the waste liquid spray port.
In addition, the number of the waste liquid injection ports is preferably at least two.
Furthermore, preferably, the air supply device comprises an air supply box and an air pipe arranged inside the air supply box; the air supply box is annularly arranged on the outer side wall of the liquid jet incinerator, the air pipe is spirally arranged, and an air outlet of the air pipe is arranged in the liquid jet incinerator.
Furthermore, it is preferable that a combustion heat supply means is provided on a side wall of the liquid jet incinerator; the combustion heat supply device is arranged between the air supply device and the first smoke gas through hole.
Furthermore, it is preferable that the combustion heat supply means includes a burner; the number of the burners is at least two, and the burners are uniformly arranged around the circumference of the side wall of the liquid injection incinerator.
In addition, the feeding device is preferably arranged at the solid waste inlet; the feeding device comprises a screw conveyor connected with the solid waste inlet and a bucket elevator connected with the screw conveyor.
Furthermore, it is preferable that the flue gas outlet is arranged perpendicular to the counter-current rotary kiln.
In addition, the second flue gas port is preferably inserted into the first flue gas port vertically.
The present invention provides an industrial waste incineration method for simultaneously treating solid waste and waste liquid generated in industry by using the industrial waste incineration device as described above; the method comprises the following steps:
spraying high-concentration salt-containing organic waste liquid into the liquid jet incinerator through the waste liquid spraying port, and supplying air into the liquid jet incinerator by utilizing the air supply device so as to burn the organic waste liquid in the liquid jet incinerator;
the flue gas generated by the incineration of the organic waste liquid enters the countercurrent rotary kiln from the first flue gas port to form reverse motion with the solid waste salt introduced from the solid waste inlet, and the flue gas and the solid waste salt perform heat exchange in the process of the reverse motion so as to cause the organic matters in the solid waste salt to be pyrolyzed and incinerated;
and the organic waste liquid is burnt, ash slag generated by the pyrolysis and burning of the solid waste salt falls into the slag hole together, and the heat-exchanged flue gas and the flue gas generated by the pyrolysis and burning of the solid waste salt are discharged from the flue gas outlet together.
According to the technical scheme, the industrial waste incineration device and the incineration method form a device for simultaneously incinerating industrial waste solids and waste liquid by a combined treatment mode of the liquid jet incinerator and the countercurrent rotary kiln, meanwhile, the advantages of solid waste salt incineration of the rotary kiln type and the advantages of waste liquid incineration of the waste liquid incinerator are utilized, the waste liquid is incinerated in the liquid jet incinerator, the generated flue gas is used for pyrolyzing the solid waste salt in the countercurrent rotary kiln, on one hand, the heat of the flue gas generated by incinerating the waste liquid is fully utilized, on the other hand, the fluctuation caused by incinerating the rotary kiln is effectively avoided, and the problem of influence on refractory materials in the rotary kiln due to melting coking caused by incinerating the rotary kiln is effectively solved; the invention is not only suitable for removing organic matters in industrial solid waste salt and high-concentration organic salt-containing waste liquid recycling waste salt, but also suitable for incineration treatment of solid and liquid hazardous waste, and is especially suitable for waste treatment with large waste liquid amount.
To the accomplishment of the foregoing and related ends, one or more aspects of the invention comprise the features hereinafter fully described. The following description and the annexed drawings set forth in detail certain illustrative aspects of the invention. These aspects are indicative, however, of but a few of the various ways in which the principles of the invention may be employed. Furthermore, the invention is intended to include all such aspects and their equivalents.
Drawings
Other objects and attainments together with a more complete understanding of the invention will become apparent and appreciated by referring to the following description taken in conjunction with the accompanying drawings. In the drawings:
fig. 1 is a schematic structural view of an industrial waste incineration device according to an embodiment of the present invention;
FIG. 2 is a schematic view of an air supply device according to an embodiment of the present invention;
fig. 3 is a flow chart of an industrial waste incineration method according to an embodiment of the present invention.
In the drawing, the device comprises an 11-liquid jet incinerator, a 111-waste liquid jet orifice, a 112-first flue gas port, a 12-air supply device, a 121-air supply box, a 122-air pipe, a 21-countercurrent rotary kiln, a 211-solid waste inlet, a 212-flue gas outlet, a 3-slag extractor, a 4-waste liquid spray gun, a 5-burner, a 61-screw conveyor, a 62-bucket elevator and a 7-scale sealing device.
The same reference numerals will be used throughout the drawings to refer to similar or corresponding features or functions.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
Aiming at the problems that in the prior art, high-concentration organic salt-containing waste liquid needs to be evaporated into solid waste salt and then is subjected to incineration treatment, the treatment procedure is increased, meanwhile, the energy consumption is increased during the evaporation treatment of the waste liquid, and when the organic waste salt is incinerated by adopting a forward-flow rotary kiln, the melting and coking are easy to occur, the rotary kiln is looped, slag is hung up, and the like, the industrial waste incineration device and the industrial waste incineration method are provided.
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
For the purpose of illustrating the industrial waste incineration apparatus and the incineration method provided by the present invention, fig. 1 shows the structure of an industrial waste incineration apparatus according to an embodiment of the present invention; fig. 2 shows a structure of an air supply device according to an embodiment of the present invention; fig. 3 shows a flow of an industrial waste incineration method according to an embodiment of the present invention.
As shown in fig. 1 to 3 together, the industrial waste incineration device provided by the invention comprises a liquid incineration device and a solid incineration device; wherein the liquid incineration device comprises a liquid jet incinerator 1 and an air supply device 12 arranged on the liquid jet incinerator 11; a waste liquid injection port 111 is provided at the top of the liquid injection incinerator 1, and a first flue gas port 112 is provided at the lower section of the liquid injection incinerator 11; a slag hole (not shown) is provided at the bottom of the liquid jet incinerator 11, and a slag extractor 3 is connected to the slag hole; the solid incineration device comprises a countercurrent rotary kiln 21; the tail end of the countercurrent rotary kiln 2 is provided with a second flue gas port (not shown in the figure) communicated with the first flue gas port 112; a solid waste inlet 211 is arranged at the head end of the countercurrent rotary kiln 2, and a flue gas outlet 212 is arranged at the top end of the head of the countercurrent rotary kiln 21.
The device for simultaneously incinerating the industrial waste solids and the waste liquid is formed by a combined treatment mode of the liquid jet incinerator 11 and the countercurrent rotary kiln 21, the advantages of solid waste salt incineration of the rotary kiln type and the advantages of waste liquid incineration of the waste liquid incinerator are utilized, the waste liquid is incinerated in the liquid jet incinerator 11, and the generated flue gas is used for pyrolyzing the solid waste salt in the countercurrent rotary kiln 21, so that on one hand, the heat of the flue gas generated by the incineration of the waste liquid is fully utilized, on the other hand, the fluctuation caused by the incineration of the rotary kiln is effectively avoided, and the problem of influence on refractory materials in the rotary kiln due to melting and coking caused by the incineration of the rotary kiln is effectively solved; the invention is not only suitable for removing organic matters in industrial solid waste salt and high-concentration organic salt-containing waste liquid recycling waste salt, but also suitable for incineration treatment of solid and liquid hazardous waste, and is especially suitable for waste treatment with large waste liquid amount.
As a preferred embodiment of the present invention, a waste liquid spray gun 4 is provided at the waste liquid spray port 111. The high-concentration salt-containing organic waste liquid is atomized by the waste liquid spray gun 4 and then sprayed into the liquid jet incinerator 11, so that the waste liquid is conveniently incinerated.
As a preferred embodiment of the present invention, the number of waste liquid ejection ports 111 is at least two. By providing a plurality of waste liquid ejection ports 111, waste liquid incineration efficiency is improved.
As a preferred embodiment of the present invention, the air supply device 12 includes an air supply box 121 and an air duct 122 provided inside the air supply box 121; the air supply box 121 is annularly arranged on the outer side wall of the liquid jet incinerator 11, the air pipe 122 is spirally arranged, and an air outlet of the air pipe 122 is arranged inside the liquid jet incinerator 11. The air supply pipe 122 is arranged in a spiral direction, the flue gas in the liquid jet incinerator 11 is driven by air to spirally advance, the disturbance and the residence time of the flue gas in the liquid jet incinerator 11 are increased, and the flue gas generated by the liquid jet incinerator 11 enters the countercurrent rotary kiln 21 through a tail connection section of the countercurrent rotary kiln 21 and fully contacts and exchanges heat with the solid waste salt in the countercurrent rotary kiln 21.
As a preferred embodiment of the present invention, combustion heat supply means is provided on the side wall of the liquid jet incinerator 11; the combustion heat supply device is arranged between the air supply device 12 and the first flue gas port 112. The combustion heat supply device supplements the heat required by the waste liquid combustion, so that the waste liquid combustion is smoothly carried out, and the waste liquid combustion device is arranged on the liquid jet incinerator 11, thereby avoiding influencing the refractory material on the inner wall of the countercurrent rotary kiln 21.
As a preferred embodiment of the present invention, the combustion heat supply means includes a burner 5; the number of burners 5 is at least two, and the burners 5 are uniformly arranged around the circumference of the side wall of the liquid-jet incinerator 11. The heat supply in the liquid jet incinerator 11 is more uniform, and the thorough incineration of the waste liquid is ensured.
As a preferred embodiment of the present invention, a feeding device is provided at the solid waste inlet 211; the feeding device comprises a screw conveyor 61 connected with the solid waste inlet 211 and a bucket elevator 62 connected with the screw conveyor 61.
The solid waste salt is lifted to the screw conveyor 61 through the bucket elevator 62, the solid waste salt is conveyed into the countercurrent rotary kiln 21, the waste salt enters the kiln and contacts with high-temperature flue gas generated by the waste liquid incinerator, the movement direction of the solid waste salt is opposite to the movement direction of the flue gas, and the heat exchange between the solid waste salt and the flue gas is increased, so that organic matters in the solid waste salt are pyrolyzed and incinerated; the screw feeder 61 may be a hydraulic push rod type feeder, and the screw feeding may realize continuous feeding of the countercurrent rotary kiln 21.
As a preferred embodiment of the present invention, the flue gas outlet 212 is provided in a vertical counter-current rotary kiln 21. The outflow area of the flue gas is large, and the flue gas discharge efficiency is improved.
As a preferred embodiment of the present invention, the second flue gas port is vertically inserted inside the first flue gas port 112. The connection mode enables the tail of the countercurrent rotary kiln 21 to be directly inserted into the hearth of the liquid jet incinerator 11, so that the smoke resistance generated when the incinerators are connected by the flue can be reduced, and the connection mode also provides conditions for the countercurrent rotary kiln 21 and the liquid jet incinerator 11 to share the slag extractor 3, and avoids the condition of separately setting slag.
As a preferred embodiment of the invention, a fish scale sealing device 7 is arranged at the connection of the second flue gas port and the first flue gas port 112. The leakage of ambient air into the liquid jet incinerator 11 is ensured, and the temperature inside the liquid jet incinerator 11 is reduced.
The industrial waste incineration method provided by the invention utilizes the industrial waste incineration device to simultaneously treat the solid waste and the waste liquid generated in the industry, and is particularly suitable for removing organic matters in the industrial organic waste salt recycling treatment technology; the method comprises the following steps:
s1, spraying high-concentration salt-containing organic waste liquid into the liquid jet incinerator 11 through a waste liquid spraying port 111, and supplying air into the liquid jet incinerator 11 by using an air supply device 12 to burn the organic waste liquid in the liquid jet incinerator 11;
s2, enabling flue gas generated by burning the organic waste liquid to enter a countercurrent rotary kiln 21 from a first flue gas port 112 to form reverse movement with solid waste salt introduced from a solid waste inlet 211, and performing heat exchange between the flue gas and the solid waste salt in the process of the reverse movement to enable the solid waste salt to be pyrolyzed and burned;
s3, the ash residues generated by the incineration of the organic waste liquid and the pyrolysis and incineration of the solid waste salt fall into a slag outlet together, and the flue gas after heat exchange and the flue gas generated by the pyrolysis and incineration of the solid waste salt are discharged from a flue gas outlet 212 together.
Specifically, the high-concentration salt-containing organic waste liquid is atomized by the waste liquid spray gun 4 and then sprayed into the liquid jet incinerator 11, the burner 5 supplements heat required by waste liquid combustion, the air supply box 121 supplements air required by waste liquid combustion and solid waste salt combustion, the air box is annularly arranged, the air pipe is spirally arranged, and flue gas is spirally advanced under the drive of the air, so that the disturbance and the residence time of the flue gas in the liquid jet incinerator 11 are increased. Flue gas generated by waste liquid incineration enters the countercurrent rotary kiln 21 through a tail connection section of the countercurrent rotary kiln 21.
The solid waste salt is lifted to the screw conveyor 61 through the bucket elevator 62, the solid waste salt is conveyed into the countercurrent rotary kiln 21, the waste salt enters the countercurrent rotary kiln 21 to be in contact with high-temperature flue gas generated by waste liquid incineration, the movement direction of the solid waste salt is opposite to the movement direction of the flue gas, and heat exchange between the solid waste salt and the flue gas is increased, so that organic matters in the solid waste salt are pyrolyzed and incinerated. The solid waste moves toward the tail of the kiln by the rotation of the countercurrent rotary kiln 21, and finally falls into the slag extractor 3 together with the slag generated by the incineration of the waste liquid.
According to the industrial waste incineration device and the incineration method, provided by the invention, the device for simultaneously incinerating the industrial waste solid and the waste liquid is formed by a combined treatment mode of the liquid jet incinerator and the countercurrent rotary kiln, the advantages of solid waste salt incineration of the rotary kiln type and the advantages of waste liquid incineration of the waste liquid incinerator are utilized, the waste liquid is incinerated in the liquid jet incinerator, the generated flue gas is used for pyrolyzing the solid waste salt in the countercurrent rotary kiln, on one hand, the heat of the flue gas generated by incinerating the waste liquid is fully utilized, on the other hand, the fluctuation caused by incinerating the rotary kiln is effectively avoided, and the problem of influence on refractory materials in the rotary kiln due to melting coking caused by incinerating the rotary kiln is effectively solved; the invention is not only suitable for removing organic matters in industrial solid waste salt and high-concentration organic salt-containing waste liquid recycling waste salt, but also suitable for incineration treatment of solid and liquid hazardous waste, and is especially suitable for waste treatment with large waste liquid amount.
The industrial waste incineration device and the incineration method according to the present invention are described above by way of example with reference to the accompanying drawings. However, it will be appreciated by those skilled in the art that various modifications can be made to the industrial waste incineration device and incineration method as set forth in the above-described invention without departing from the scope of the present invention. Accordingly, the scope of the invention should be determined from the following claims.
Claims (10)
1. An industrial waste incineration device is characterized by comprising a liquid incineration device and a solid incineration device; wherein,,
the liquid incineration device comprises a liquid jet incinerator and an air supply device arranged on the liquid jet incinerator; a waste liquid jet orifice is arranged at the top of the liquid jet incinerator, and a first flue gas port is arranged at the lower section of the liquid jet incinerator; a slag hole is formed in the bottom of the liquid jet incinerator;
the solid incineration device comprises a countercurrent rotary kiln; the tail end of the countercurrent rotary kiln is provided with a second smoke vent communicated with the first smoke vent; the head end of the countercurrent rotary kiln is provided with a solid waste inlet, and the top end of the head of the countercurrent rotary kiln is provided with a flue gas outlet.
2. The industrial waste incineration device according to claim 1, wherein,
a waste liquid spray gun is arranged at the waste liquid spray opening.
3. The industrial waste incineration device according to claim 1, wherein,
the number of the waste liquid jet ports is at least two.
4. The industrial waste incineration device according to claim 1, wherein,
the air supply device comprises an air supply box and an air pipe arranged in the air supply box;
the air supply box is annularly arranged on the outer side wall of the liquid jet incinerator, the air pipe is spirally arranged, and an air outlet of the air pipe is arranged in the liquid jet incinerator.
5. The industrial waste incineration device according to claim 1, wherein,
a combustion heat supply device is arranged on the side wall of the liquid jet incinerator;
the combustion heat supply device is arranged between the air supply device and the first smoke gas through hole.
6. The industrial waste incineration device according to claim 5, wherein,
the combustion heat supply device includes a burner;
the number of the burners is at least two, and the burners are uniformly arranged around the circumference of the side wall of the liquid injection incinerator.
7. The industrial waste incineration device according to claim 1, wherein,
a feeding device is arranged at the solid waste inlet;
the feeding device comprises a screw conveyor connected with the solid waste inlet and a bucket elevator connected with the screw conveyor.
8. The industrial waste incineration device according to claim 1, wherein,
the flue gas outlet is perpendicular to the countercurrent rotary kiln.
9. The industrial waste incineration device according to claim 1, wherein,
the second flue gas port is vertically inserted into the first flue gas port.
10. An industrial waste incineration method, characterized in that the industrial waste incineration device according to any one of claims 1-9 is utilized to treat solid waste and waste liquid generated in industry simultaneously, and is especially suitable for removing organic matters in the industrial organic waste salt recycling treatment technology; the method comprises the following steps:
spraying high-concentration salt-containing organic waste liquid into the liquid jet incinerator through the waste liquid spraying port, and supplying air into the liquid jet incinerator by utilizing the air supply device so as to burn the organic waste liquid in the liquid jet incinerator;
the flue gas generated by the incineration of the organic waste liquid enters the countercurrent rotary kiln from the first flue gas port to form reverse motion with the solid waste salt introduced from the solid waste inlet, and the flue gas and the solid waste salt perform heat exchange in the process of the reverse motion so as to cause the organic matters in the solid waste salt to be pyrolyzed and incinerated;
and the organic waste liquid is burnt, ash slag generated by the pyrolysis and burning of the solid waste salt falls into the slag hole together, and the heat-exchanged flue gas and the flue gas generated by the pyrolysis and burning of the solid waste salt are discharged from the flue gas outlet together.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211571782.5A CN116105144A (en) | 2022-12-08 | 2022-12-08 | Industrial waste incineration device and incineration method |
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| CN202211571782.5A CN116105144A (en) | 2022-12-08 | 2022-12-08 | Industrial waste incineration device and incineration method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682592A (en) * | 2024-02-02 | 2024-03-12 | 南京宇清环境科技有限公司 | Device and method for simultaneously treating high-salt-content high-COD industrial wastewater and industrial solid waste salt |
| CN117682592B (en) * | 2024-02-02 | 2024-06-11 | 南京宇清环境科技有限公司 | Device and method for simultaneously treating high-salt-content high-COD industrial wastewater and industrial solid waste salt |
-
2022
- 2022-12-08 CN CN202211571782.5A patent/CN116105144A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117682592A (en) * | 2024-02-02 | 2024-03-12 | 南京宇清环境科技有限公司 | Device and method for simultaneously treating high-salt-content high-COD industrial wastewater and industrial solid waste salt |
| CN117682592B (en) * | 2024-02-02 | 2024-06-11 | 南京宇清环境科技有限公司 | Device and method for simultaneously treating high-salt-content high-COD industrial wastewater and industrial solid waste salt |
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