CN112728550A - Treatment system and method for directly burning gasified fine slag - Google Patents
Treatment system and method for directly burning gasified fine slag Download PDFInfo
- Publication number
- CN112728550A CN112728550A CN202110064824.5A CN202110064824A CN112728550A CN 112728550 A CN112728550 A CN 112728550A CN 202110064824 A CN202110064824 A CN 202110064824A CN 112728550 A CN112728550 A CN 112728550A
- Authority
- CN
- China
- Prior art keywords
- fine slag
- gasified fine
- filter cake
- gasified
- slag filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
- F23G5/02—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
-
- 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
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/10—Drying by heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/302—Treating pyrosolids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/303—Burning pyrogases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2700/00—Ash removal, handling and treatment means; Ash and slag handling in pulverulent fuel furnaces; Ash removal means for incinerators
- F23J2700/003—Ash removal means for incinerators
Abstract
The application relates to a system and a method for directly incinerating gasified fine slag, which comprises the following steps: a feeding and drying device and an incinerator device. The gasified fine slag containing 70-99% of water enters a feeding and drying device, and is deeply dehydrated to a fine slag filter cake containing 10-30% of water, so that a large amount of water resources are recovered, and the received base heat value of the fine slag filter cake is obviously improved. The fine slag filter cake containing 10-30% of water is fed into an incinerator, the carbon residue fuel in the fine slag filter cake is used for generating high-temperature high-pressure steam, and the lime generated by incineration can be directly used as a heat insulation material, a building material, a road material, soil modification and the like. The application carries out drying and direct burning treatment on the gasified fine slag, not only solves the industry bottleneck problems of high difficulty and serious environmental pollution in solid waste treatment of the gasified fine slag, but also realizes resource utilization of the gasified fine slag, and saves water, energy and efficiency.
Description
Technical Field
The application relates to the technical field of coal chemical industry, in particular to a system and a method for directly burning gasified fine slag.
Background
In the coal chemical production process, after entrained-flow bed gasification (coal water slurry gasification, dry coal powder gasification and the like) reaction, a large amount of gasification fine slag with high water content can be generated, and the content of combustible substances of dry bases of the gasification fine slag is 18-50%. The amount of discharged gasified fine slag in China is about 6000 million tons to 1 hundred million tons every year, the gasified fine slag is mainly treated by direct landfill at present, the landfill mode of the gasified fine slag does not meet increasingly strict environmental protection requirements, environmental pollution is easily caused, water resources and energy resources are wasted, and a large amount of land resources are occupied.
Disclosure of Invention
The application provides a system and a method for directly incinerating gasified fine slag, which aim to solve the problems of high difficulty in treatment, serious environmental pollution and resource waste of the conventional gasified fine slag.
On the one hand, the application provides a treatment system for directly incinerating gasified fine slag, which comprises a feeding and drying device and an incinerator device;
the feed drying device comprises: the system comprises a slurry pump, a drying machine, a belt conveyor, a storage bin and a pneumatic conveying fan;
the slurry pump is used for conveying the gasified fine slag to the drier;
one end of the belt conveyor is arranged below the drying machine, and the other end of the belt conveyor is connected with the storage bin;
the lower part of the feed bin is provided with the pneumatic conveying fan, and the dried filter cake is conveyed into the incinerator device through the pneumatic conveying fan;
the incinerator device comprises a combustion chamber, a high-efficiency fly ash separation unit, a return pipe, a high-temperature heat exchange unit, a low-temperature heat exchange unit, an ash hopper, a purification and dust removal unit and a chimney;
the top end of the combustion chamber is connected with the upper part of the high-efficiency fly ash separation unit;
the bottom of the high-efficiency fly ash separation unit is connected with the combustion chamber through the return pipe;
the pneumatic conveying fan is used for connecting the crushed filter cake with the first feeding hole and the second feeding hole through pipelines;
the top output end of the high-efficiency fly ash separation unit is sequentially provided with the high-temperature heat exchange unit and the low-temperature heat exchange unit;
the lower part of the low-temperature heat exchange unit is connected with the ash hopper and the purification and dust removal unit;
the output end of the purification and dust removal unit is connected with the chimney through a smoke exhaust fan.
In a second aspect, the present application provides a method for directly incinerating gasified fine slag, which is applied to the system for treating gasified fine slag, and the method comprises the following steps:
inputting the gasified fine slag slurry into the drier through the slurry pump;
the drier carries out deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake;
conveying the gasified fine slag filter cake to the storage bin through the belt conveyor and crushing;
conveying the crushed gasified fine slag filter cake into a first feeding hole and a second feeding hole through a pipeline by the pneumatic conveying fan, and then conveying the filter cake to the combustion chamber;
burning the gasified fine slag filter cake to obtain a combustion product containing lime fume and an unburned gasified fine slag filter cake;
separating the product by the high-efficiency fly ash separation unit to obtain unburned gasified fine slag filter cake, and enabling the gasified fine slag filter cake to downwards pass through the return pipe and enter the combustion chamber again for circulating combustion;
the obtained lime-containing flue gas upwards sequentially passes through the high-temperature heat exchange unit and the low-temperature heat exchange unit to obtain high-temperature high-pressure steam;
the cooled lime enters the ash hopper, and the cooled flue gas enters the chimney to be discharged up to the standard through the smoke exhaust fan after being purified by the purification and dust removal unit.
The drying machine carries out deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake, and the method specifically comprises the following steps:
squeezing the gasified fine slag slurry through the slurry pump;
heating the pressed gasified fine slag by a low-grade heat source;
and boiling the water in the gasified fine slag after heating to obtain the gasified fine slag filter cake.
The water content range of the gasified fine slag filter cake is 10-30%.
The low-grade heat source is dead steam of a chemical plant at about 150 ℃ or low-pressure steam or high-temperature hot water.
After the gasified fine slag filter cake is conveyed to the combustion chamber through the pneumatic conveying fan, no other fuel is required to be added to the incinerator device during normal operation.
The gasified fine slag filter cake can be purely combusted in the incinerator device.
The gasified fine slag filter cake can be continuously and circularly combusted in the incinerator device until the gasified fine slag filter cake is completely combusted.
The ash-containing flue gas and the unburned gasified fine slag filter cake can be fully separated in the high-efficiency fly ash separation unit.
According to the technical scheme, the application provides a system and a method for directly incinerating gasified fine slag, and the method comprises the following steps: a feeding and drying device and an incinerator device. The gasified fine slag containing 70-99% of water enters a feeding and drying device, and is deeply dehydrated to a fine slag filter cake containing 10-30% of water, so that a large amount of water resources are recovered, and the received base heat value of the fine slag filter cake is obviously improved. The fine slag filter cake containing 10-30% of water is fed into an incinerator, the carbon residue fuel in the fine slag filter cake is used for generating high-temperature high-pressure steam, and the lime generated by incineration can be directly used as a heat insulation material, a building material, a road material, soil modification and the like. The application carries out drying and direct burning treatment on the gasified fine slag, not only solves the industry bottleneck problems of high difficulty and serious environmental pollution in solid waste treatment of the gasified fine slag, but also realizes resource utilization of the gasified fine slag, and saves water, energy and efficiency.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to 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 a system for processing fine slag gasification according to the present application;
FIG. 2 is a flow chart of the operation of a method for treating gasified fine slag according to the present application.
The system comprises a feeding and drying device 1, an incinerator device 2, a slurry pump 3, a drier 4, a belt conveyer 5, a bunker 6, a pneumatic conveying fan 7, a first feeding port 8-1, a second feeding port 8-2, a combustion chamber 9, a fly ash separation unit 10, a return pipe 11, a high-temperature heat exchange unit 12, a low-temperature heat exchange unit 13, an ash hopper 14, a dust purification and removal unit 15, a smoke exhaust fan 16 and a chimney 17.
Detailed Description
Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following examples do not represent all embodiments consistent with the present application. But merely as exemplifications of systems and methods consistent with certain aspects of the application, as recited in the claims.
Referring to fig. 1, the application provides a processing system for directly incinerating gasified fine slag, which comprises a feeding and drying device 1 and an incinerator device 2;
the feed drying device 1 comprises: a slurry pump 3, a drier 4, a belt conveyor 5, a storage bin 6 and a pneumatic conveying fan 7;
the slurry pump 3 is used for conveying the gasified fine slag to the drier 4;
one end of the belt conveyor 5 is arranged below the drying machine 4, and the other end of the belt conveyor 5 is connected with the stock bin 6;
the lower part of the stock bin 6 is provided with the pneumatic conveying fan 7, and the dried filter cake is conveyed into the incinerator device 2 through the pneumatic conveying fan 7;
the incinerator device 2 comprises a combustion chamber 9, a high-efficiency fly ash separation unit 10, a return pipe 11, a high-temperature heat exchange unit 12, a low-temperature heat exchange unit 13, an ash hopper 14, a purification and dust removal unit 15, a smoke exhaust fan 16 and a chimney 17;
the top end of the combustion chamber 9 is connected with the upper part of the high-efficiency fly ash separation unit 10;
the bottom of the high-efficiency fly ash separation unit 10 is connected with the combustion chamber 9 through the return pipe 11;
a first feeding hole 8-1 is formed in the material returning pipe 11, a second feeding hole 8-2 is formed in the bottom end of the combustion chamber 9, and the broken filter cake is connected with the first feeding hole 8-1 through a pipeline by the pneumatic conveying fan 7;
the top output end of the high-efficiency fly ash separation unit 10 is sequentially provided with the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13;
the lower part of the low-temperature heat exchange unit 13 is connected with the ash hopper 14 and the purification and dust removal unit 15;
the output end of the purifying and dedusting unit 15 is connected with the chimney 17 through a smoke exhaust fan 16.
When the treatment system normally works, the slurry pump 3 is used for conveying the gasified fine slag slurry to the drier 4, and the drier 4 is used for drying the gasified fine slag slurry to obtain a gasified fine slag filter cake. The belt conveyor 5 is used for conveying the gasified fine slag filter cake to the storage bin 6, the pneumatic conveying fan 7 is used for conveying the gasified fine slag filter cake to the incinerator device 2 through the first feeding hole 8-1 and the second feeding hole 8-2, and the incinerator device 2 is used for directly incinerating the gasified fine slag filter cake without adding other fuels, so that the final product lime and the byproduct high-temperature steam are obtained. The combustion chamber 9 is used for directly burning the gasified fine slag filter cake to obtain fly ash. The fly ash separation unit 10 is used for gas-solid separation, collecting filter cakes which are not completely combusted, performing combustion treatment again, and conveying gas containing fly ash to the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13. The fly ash is effectively cooled through the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13, and byproduct steam is obtained through heat exchange. The flue gas generated by the reaction is purified and dedusted by the purifying and dedusting unit 15 and discharged through the chimney 17 after reaching the standard, and the smoke exhaust fan 16 is used for conveying the flue gas purified and dedusted to the chimney 17.
In a second aspect, the present application provides a method for directly incinerating gasified fine slag, which is applied to the system for treating gasified fine slag, and the method comprises the following steps:
s100: inputting the gasified fine slag slurry into the drier 4 through the slurry pump 3;
s200: the drier 4 carries out deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake;
more specifically, the gasified fine slag slurry is squeezed by the slurry pump, the squeezed gasified fine slag is indirectly heated by a low-grade heat source, and water in the heated gasified fine slag is boiled. The water content of the gasified fine slag filter cake is controlled to be between 10 and 30 percent, and the problem that the gasified fine slag is difficult to dehydrate can be completely solved.
S300: conveying the gasified fine slag filter cake to the storage bin 6 through the belt conveyor 5 and crushing;
more specifically, through band conveyer 5 can greatly promote the conveying efficiency of the thin sediment filter cake of gasification uses manpower sparingly, reduces the processing time.
S400: conveying the crushed gasified fine slag filter cake into a first feeding hole 8-1 and a second feeding hole 8-2 through a pneumatic conveying fan 7 through a pipeline, and then conveying the filter cake to a combustion chamber 9;
s500: burning the gasified fine slag filter cake to obtain a combustion product containing lime fume and an unburned gasified fine slag filter cake;
more specifically, the gasified fine slag filter cake is ignited by a small amount of coal powder, and after the combustion is stable, the gasified fine slag filter cake is continuously and stably added, so that the stable combustion of the gasified fine slag filter cake is ensured.
S600: separating the product by the high-efficiency fly ash separation unit 10 to obtain unburned gasified fine slag filter cake, and enabling the gasified fine slag filter cake to downwards pass through the return pipe 11 and enter the combustion chamber 9 again for circular combustion;
s700: the obtained lime-containing flue gas upwards sequentially passes through the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13 to obtain a byproduct, namely high-temperature and high-pressure steam;
more specifically, the gasified fine slag fly ash has a higher temperature, and is cooled by the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13, and by-product steam is generated at the same time, so that the energy is recycled, the energy utilization rate is improved, and the energy waste is avoided.
S800: the cooled lime enters the lime hopper 14, and the cooled flue gas enters the chimney 17 through the smoke exhaust fan 16 for standard emission after being purified by the purification and dust removal unit 15.
The drying machine 4 carries out deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake, and the method specifically comprises the following steps:
squeezing the gasified fine slag slurry through the slurry pump 3;
indirectly heating the pressed gasified fine slag by a low-grade heat source;
and boiling the water in the gasified fine slag after heating to obtain the gasified fine slag filter cake.
The water content range of the gasified fine slag filter cake is 10-30%.
In some embodiments, the low grade heat source is 150 ℃ chemical plant exhaust steam or low pressure steam or high temperature hot water. More specifically, through low-grade heat source heating, can reduce effectively the water content of the thin sediment thick liquids of gasification, the follow-up procedure of being convenient for is handled, if the water content is too high, then the thin sediment of gasification receives basic calorific value and hangs down excessively, can't reach the combustion condition, simultaneously, lower water content can effectively promote the treatment effeciency of the thin sediment of gasification.
In some embodiments, before conveying the gasified fine slag filter cake to the combustion chamber 9 through the pneumatic conveying fan 7, the method further comprises:
mechanically crushing the gasified fine slag filter cake to obtain gasified fine slag filter cake fine powder;
and conveying the fine powder of the gasified fine slag filter cake to the combustion chamber 9 through the pneumatic conveying fan 7.
More specifically, the gasified fine slag filter cake is crushed, so that the gasified fine slag filter cake can be combusted more fully, and the utilization rate of energy is effectively improved. After the gasified fine slag filter cake is conveyed to the combustion chamber 9 through the pneumatic conveying fan 7, the incinerator device 2 does not need to add any other fuel when in normal operation.
The gasified fine slag filter cake can be purely combusted in the incinerator device 2.
The gasified fine slag filter cake can be continuously and circularly combusted in the incinerator device 2 until the gasified fine slag filter cake is completely combusted.
The lime-containing flue gas and the unburned gasified fine slag filter cake can be sufficiently separated in the high-efficiency fly ash separation unit 10.
According to the technical scheme provided above, the application provides a processing system that thin sediment of gasification directly burns, including feed mummification device 1 and burning furnace device 2, feed mummification device 1 includes: a slurry pump 3, a drier 4, a belt conveyer 5, a bunker 6 and a pneumatic conveying fan 7, wherein the slurry pump 3 is used for conveying gasified fine slag to the drier 4, one end of the belt conveyer 5 is arranged below the drier 4, the other end of the belt conveyer 5 is connected with the bunker 6, the lower part of the bunker 6 is provided with the pneumatic conveying fan 7, a dried filter cake passes through the pneumatic conveying fan 7 and is conveyed to enter the incinerator device 2, the incinerator device 2 comprises a combustion chamber 9, a high-efficiency fly ash separation unit 10, a return pipe 11, a high-temperature heat exchange unit 12, a low-temperature heat exchange unit 13, an ash hopper 14, a purification and dust removal unit 15, a smoke exhaust fan 16 and a chimney 17, the top end of the combustion chamber 9 is connected with the upper part of the high-efficiency fly ash separation unit 10, the bottom of the high-efficiency fly ash separation unit 10 is connected with the combustion chamber 9 through the return pipe 11, the device comprises a material return pipe 11, a first feed inlet 8-1, a second feed inlet 8-2 and a pneumatic conveying fan 7, wherein the first feed inlet 8-1 is arranged at the bottom end of a combustion chamber 9, the broken filter cake is connected with the first feed inlet 8-1 and the second feed inlet 8-2 through pipelines by the pneumatic conveying fan 7, the high-temperature heat exchange unit 12 and the low-temperature heat exchange unit 13 are sequentially arranged at the output end of the top of a high-efficiency fly ash separation unit 10, the lower part of the low-temperature heat exchange unit 13 is connected with an ash hopper 14 and a purification and dust removal unit 15, and the output end of the purification and dust removal unit 15 is connected with a. According to the method, the gasified fine slag containing 70% -99% of water is pressed into the feeding and drying device, deep dehydration is carried out until the fine slag filter cake containing 10% -30% of water, a large amount of water resources are recovered, and the received base heat value of the fine slag filter cake is obviously improved. The fine slag filter cake containing 10-30% of water is fed into an incinerator, the carbon residue fuel in the fine slag filter cake is used for generating high-temperature high-pressure steam, and the lime generated by incineration can be directly used as a heat insulation material, a building material, a road material, soil modification and the like. The application carries out drying and direct burning treatment on the gasified fine slag, not only solves the industry bottleneck problems of high difficulty and serious environmental pollution in solid waste treatment of the gasified fine slag, but also realizes resource utilization of the gasified fine slag, and saves water, energy and efficiency.
The embodiments provided in the present application are only a few examples of the general concept of the present application, and do not limit the scope of the present application. Any other embodiments extended according to the scheme of the present application without inventive efforts will be within the scope of protection of the present application for a person skilled in the art.
Claims (10)
1. A processing system for directly incinerating gasified fine slag is characterized by comprising a feeding and drying device (1) and an incinerator device (2);
the feed drying device (1) comprises: a slurry pump (3), a drier (4), a belt conveyor (5), a storage bin (6) and a pneumatic conveying fan (7);
the slurry pump (3) is used for conveying the gasified fine slag to the drier (4);
one end of the belt conveyor (5) is arranged below the drying machine (4), and the other end of the belt conveyor (5) is connected with the stock bin (6);
the lower part of the stock bin (6) is provided with the pneumatic conveying fan (7), and the dried filter cake is conveyed into the incinerator device (2) through the pneumatic conveying fan (7);
the incinerator device (2) comprises a combustion chamber (9), a high-efficiency fly ash separation unit (10), a return pipe (11), a high-temperature heat exchange unit (12), a low-temperature heat exchange unit (13), an ash hopper (14), a purification and dust removal unit (15), a smoke exhaust fan (16) and a chimney (17);
the top end of the combustion chamber (9) is connected with the upper part of the high-efficiency fly ash separation unit (10);
the bottom of the high-efficiency fly ash separation unit (10) is connected with the combustion chamber (9) through the return pipe (11);
the pneumatic conveying fan (7) inputs the crushed filter cake into the first feeding hole (8-1) and the second feeding hole (8-2) through pipelines;
the top output end of the high-efficiency fly ash separation unit (10) is sequentially provided with the high-temperature heat exchange unit (12) and the low-temperature heat exchange unit (13);
the lower part of the low-temperature heat exchange unit (13) is connected with the ash hopper (14) and the purification and dust removal unit (15);
the output end of the purification and dust removal unit (15) is connected with the chimney (17) through a smoke exhaust fan (16).
2. A method for treating gasified fine slag through direct incineration, which is applied to the system for treating gasified fine slag according to claim 1, and comprises the following steps:
inputting the gasified fine slag slurry into the drier (4) through the slurry pump (3);
the drier (4) carries out deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake;
conveying the gasified fine slag filter cake to the storage bin (6) through the belt conveyor (5) and crushing;
conveying the crushed gasified fine slag filter cake into a first feeding hole (8-1) and a second feeding hole (8-2) through a pneumatic conveying fan (7) through a pipeline, and then conveying the filter cake to a combustion chamber (9);
burning the gasified fine slag filter cake to obtain a combustion product containing lime fume and an unburned gasified fine slag filter cake;
separating the product by the high-efficiency fly ash separation unit (10) to obtain unburned gasified fine slag filter cake, and enabling the gasified fine slag filter cake to downwards pass through the return pipe (11) and enter the combustion chamber (9) again for circulating combustion;
the obtained lime-containing flue gas upwards sequentially passes through the high-temperature heat exchange unit (12) and the low-temperature heat exchange unit (13) to obtain a byproduct, namely high-temperature and high-pressure steam;
the lime after the cooling enters an ash hopper (14), and the flue gas after the cooling passes through the purification and dust removal unit (15) for purification treatment, and then enters the chimney (17) for standard emission through the smoke exhaust fan (16).
3. The treatment method for directly incinerating gasified fine slag according to claim 2, wherein the dryer (4) performs deep dehydration treatment on the gasified fine slag slurry to obtain a gasified fine slag filter cake, and the method specifically comprises the following steps:
conveying the gasified fine slag slurry into the drier (4) for squeezing through the slag slurry pump (3);
heating the pressed gasified fine slag by a low-grade heat source;
and boiling the water in the gasified fine slag after heating to obtain the gasified fine slag filter cake.
4. The method for directly incinerating gasified fine slag according to claim 3, wherein the low-grade heat source is waste steam of a chemical plant at about 110 ℃ to 220 ℃ or low-pressure steam or high-temperature hot water.
5. The method for directly incinerating gasified fine slag according to claim 3, wherein a low-grade heat source is directly introduced into the drier (4).
6. The method for directly incinerating the gasified fine slag according to claim 3, wherein the water content of the gasified fine slag filter cake is in the range of 10% -30%, and the heat value of the gasified fine ash filter cake to the base is significantly increased.
7. The method for directly incinerating gasified fine slag according to claim 2, wherein after the gasified fine slag filter cake is conveyed to the combustion chamber (9) by the pneumatic conveying fan (7), the incinerator device (2) does not need to add any other fuel during normal operation.
8. The method for the direct incineration of gasified fine slag according to claim 2, wherein the gasified fine slag filter cake is burned purely by combustion in the incinerator device (2).
9. The method for the direct incineration of gasified fine slag according to claim 2, wherein the gasified fine slag filter cake is continuously circulated and burned in the incinerator device (2) until it is burned out.
10. The method for direct incineration of gasified fine slag according to claim 2, wherein the fly ash containing flue gas and the unburned gasified fine slag filter cake can be sufficiently separated in the high efficiency fly ash separation unit (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064824.5A CN112728550A (en) | 2021-01-18 | 2021-01-18 | Treatment system and method for directly burning gasified fine slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064824.5A CN112728550A (en) | 2021-01-18 | 2021-01-18 | Treatment system and method for directly burning gasified fine slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112728550A true CN112728550A (en) | 2021-04-30 |
Family
ID=75592322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110064824.5A Pending CN112728550A (en) | 2021-01-18 | 2021-01-18 | Treatment system and method for directly burning gasified fine slag |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112728550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146988A (en) * | 2023-04-20 | 2023-05-23 | 浙江百能科技有限公司 | System and method for disposing and separating metal oxide from oil residue gasification filter cake |
| CN116146987A (en) * | 2023-04-20 | 2023-05-23 | 浙江百能科技有限公司 | Device and method for incinerating and disposing gasification filter cake |
| CN117053566A (en) * | 2023-10-10 | 2023-11-14 | 北京琪玥环保科技股份有限公司 | Treatment system and treatment method for residual oil hydrogen production filter cake |
-
2021
- 2021-01-18 CN CN202110064824.5A patent/CN112728550A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116146988A (en) * | 2023-04-20 | 2023-05-23 | 浙江百能科技有限公司 | System and method for disposing and separating metal oxide from oil residue gasification filter cake |
| CN116146987A (en) * | 2023-04-20 | 2023-05-23 | 浙江百能科技有限公司 | Device and method for incinerating and disposing gasification filter cake |
| CN117053566A (en) * | 2023-10-10 | 2023-11-14 | 北京琪玥环保科技股份有限公司 | Treatment system and treatment method for residual oil hydrogen production filter cake |
| CN117053566B (en) * | 2023-10-10 | 2023-12-19 | 北京琪玥环保科技股份有限公司 | Treatment system and treatment method for residual oil hydrogen production filter cake |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112728550A (en) | Treatment system and method for directly burning gasified fine slag | |
| CN102297431B (en) | Method and device for decoupling and burning solid waste with high water content | |
| CN106277695B (en) | Device and method for recovering oil by circulating fluidized bed oil sludge distillation | |
| CN113074364A (en) | System and method for treating fine slag generated by blending combustion and gasification of pulverized coal boiler | |
| CN1912354A (en) | Integral process and equipment of garbage fuel synthesis and burning generation | |
| CN110981152A (en) | Multi-stage integrated device and method for drying, catalytic pyrolysis and oxidation of oily sludge | |
| CN112062435B (en) | Oil sludge pyrolysis treatment device and process thereof | |
| CN113028418A (en) | Treatment system and method for blending-burning gasified fine slag of circulating fluidized bed boiler | |
| CN102537979A (en) | Method for integrating sludge drying and waste incineration | |
| CN214307123U (en) | Gasification fine slag direct incineration treatment system | |
| CN113929276B (en) | Treatment method of coal gasification sludge and coal gasification production method | |
| CN103075736B (en) | Gathering ring sludge incinerator | |
| CN211475945U (en) | Utilize hazardous waste who contains carbon filter cake to burn device | |
| CN210035511U (en) | System for generating power by drying and granulating sludge and incinerating garbage in cooperation in grate furnace | |
| CN216667678U (en) | Device for directly burning coal gasification ash with high water content | |
| CN111623352A (en) | Self-sustaining incineration system and method for low-calorific-value high-ash sludge | |
| CN214009225U (en) | Incineration treatment device for combustible industrial solid waste | |
| CN218811572U (en) | Extraction slag, sludge and waste gas treatment system capable of realizing zero carbon emission | |
| CN217382890U (en) | Combustion energy supply system for biomass raw materials | |
| CN109282660B (en) | Method for treating household garbage by thermal state converter slag | |
| CN212076949U (en) | Coal pyrolysis combustion poly-generation resource comprehensive utilization system | |
| CN209857061U (en) | Sludge blending combustion garbage co-processing system | |
| CN210118754U (en) | Sludge and waste edible oil co-incineration disposal system | |
| CN212770389U (en) | Oil sludge pyrolysis treatment device | |
| CN217763445U (en) | Industry is useless admittedly and mud processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |