CN219588927U - Solid and oily liquid hazardous waste system for mixed combustion industry of circulating fluidized bed boiler - Google Patents
Solid and oily liquid hazardous waste system for mixed combustion industry of circulating fluidized bed boiler Download PDFInfo
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- CN219588927U CN219588927U CN202320333794.8U CN202320333794U CN219588927U CN 219588927 U CN219588927 U CN 219588927U CN 202320333794 U CN202320333794 U CN 202320333794U CN 219588927 U CN219588927 U CN 219588927U
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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
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model discloses a solid and oily liquid hazardous waste system for a circulating fluidized bed boiler blending combustion industry, which comprises an oil tank truck, an oil discharge pump, an oil filter, an oil storage tank, an oil supply pump recycling valve, an oil supply pipeline pressure gauge, an oil supply pipeline thermometer, an oil supply pipeline flowmeter, an oil supply pipeline flow regulating valve, a double-flow spray gun, an oil storage tank overflow valve, an oil heater, an instrument compressed air pipeline, an air compressor, an air storage tank, a haulage vehicle, an unloading hopper, a vibratory feeder, a screw conveyor, a solid hazardous waste storage bin, an unloading valve, a belt conveyor, an electronic scale, a belt coal feeder, a coal bin, an exhaust fan, a hearth, a primary air pipe, a secondary air pipe, a separator, a return mechanism, an air distribution plate and a horizontal flue. The utility model utilizes the circulating fluidized bed boiler to carry out recycling, energy and harmless treatment on industrial solid dangerous wastes such as waste activated carbon, waste resin and the like, and dangerous wastes such as waste engine oil, waste lubricating oil, waste emulsion, waste diesel oil and the like.
Description
Technical Field
The utility model relates to the technical field of collaborative treatment of industrial solid and oily liquid dangerous waste, in particular to a circulating fluidized bed boiler mixed combustion industrial solid and oily liquid dangerous waste system.
Background
In recent years, the economy of China realizes high-speed development, but the back of the quick development of the economy brings huge economic benefits to people, and the number of generated industrial dangerous wastes is also increasing with the day. Industrial hazardous waste has great uncertainty in terms of space and time from links such as generation, collection, transportation, storage, comprehensive utilization, terminal disposal and the like. The industrial hazardous waste has the characteristics of huge quantity, various kinds, complex components and difficult treatment, so that the pollution control on the industrial hazardous waste is a great difficulty in environmental management, is a common problem in the modernization process of cities, and is a problem to be solved urgently. The traditional method for treating industrial hazardous waste is to carry out high-temperature chemical treatment on the hazardous waste to change the properties of related substances. During the treatment of the traditional method, a great amount of fly ash, especially brominated dioxin and furan with high toxicity, is generated.
Disclosure of Invention
The utility model aims to provide a solid and oily liquid hazardous waste system for mixed combustion industry of a circulating fluidized bed boiler, which utilizes the circulating fluidized bed boiler to recycle, energy and harmlessly treat industrial solid hazardous wastes such as waste activated carbon, waste resin and the like, and hazardous wastes such as waste engine oil, waste lubricating oil, waste emulsion and waste diesel oil.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model relates to a solid and oily liquid hazardous waste system for a circulating fluidized bed boiler blending combustion industry, which comprises an oil storage tank, wherein an inlet of the oil storage tank is connected with an oil filter and an oil discharge pump at one time, an outlet at the lower end of the oil storage tank is connected with an oil supply pipeline of a double-flow spray gun through an oil supply pump recirculation valve, the double-flow spray gun is connected with a secondary air pipe at the upper end of a hearth, the hearth is also connected with a belt feeder, the belt feeder is connected with an outlet at the lower end of a solid hazardous waste storage bin through a belt conveyor, and an outlet at the upper end of the solid hazardous waste storage bin is connected with solid hazardous waste of a screw conveyor; the secondary air pipe and the double-flow spray gun are also respectively connected with an air storage tank; a coal bin for arching coal is also arranged above the belt coal feeder; the flue gas bin is connected to the play flue gas mouth of furnace, horizontal flue is connected to flue gas bin upper end, flue gas bin lower extreme has set gradually separator, feed back mechanism is connected to again furnace's combustion zone.
Further, the upper end of the oil storage tank is also connected to an oil supply pipeline of the double-flow spray gun through an oil storage tank overflow valve.
Further, the oil supply pipeline is provided with an oil supply pipeline pressure gauge, an oil supply pipeline thermometer, an oil supply pipeline flowmeter and an oil supply pipeline flow regulating valve.
Further, the solid-state dangerous waste pulling truck is discharged to a vibrating feeder through a discharge hopper, and the vibrating feeder is in butt joint with the screw conveyor.
Further, the solid dangerous waste storage bin is also connected to a primary air pipe at the lower end of the hearth through an exhaust fan.
Further, the oil supply pipe is also connected to the secondary air pipe via a valve and shares an inlet pipe with the air compressor.
Further, an electronic scale is further arranged on the belt conveyor.
Furthermore, the air storage tank is also respectively connected with a compressed air pipeline for the instrument and an air compressor.
Compared with the prior art, the utility model has the beneficial technical effects that:
1. the oily liquid dangerous waste is atomized and then sent into a hearth to burn through a secondary air pipeline of the circulating fluidized bed, and the solid dangerous waste is crushed and then evenly sent into the hearth to burn through a belt feeder. The existing combustion system of the circulating fluidized bed does not need to be upgraded and modified, so that the modification cost of the boiler is saved;
2. the circulating fluidized bed boiler is utilized to recycle and energy the industrial solid dangerous wastes such as the waste active carbon, the waste resin and the like, and the dangerous wastes such as the waste engine oil, the waste lubricating oil, the waste emulsion and the waste diesel oil and the like. The method realizes harmless treatment of industrial solid and oily liquid dangerous wastes, recovers heat, reduces environmental pollution and has considerable economic benefit.
Drawings
The utility model is further described with reference to the following description of the drawings.
FIG. 1 is a process flow diagram of a solid, oily liquid hazardous waste system of the present utility model for a circulating fluidized bed boiler co-firing an industrial;
reference numerals illustrate: 1. an oil tank truck; 2. an oil discharge pump; 3. an oil filter; 4. an oil storage tank; 5. a feed pump; 6. a feed pump recirculation valve; 7. oil supply pipeline pressure gauge; 8. an oil supply pipeline thermometer; 9. an oil supply pipeline flowmeter; 10. a flow regulating valve of the oil supply pipeline; 11. a dual flow lance; 12. an oil storage tank overflow valve; 13. an oil heater; 14. a compressed air pipeline for the instrument; 15. an air compressor; 16. a gas storage tank; 17. solid dangerous waste transport vehicle; 18. a discharge hopper; 19. a vibratory feeder; 20. a screw conveyor; 21. a solid-state dangerous waste storage bin; 22. a discharge valve; 23. a belt conveyor; 24. an electronic scale; 25. a belt coal feeder; 26. a coal bunker; 27. an exhaust gas fan; 28. a furnace; 29. a primary air duct; 30. a secondary air duct; 31. a separator; 32. a feed back mechanism; 33. a wind distribution plate; 34. and a horizontal flue.
Detailed Description
As shown in fig. 1, the solid and oily liquid hazardous waste system of the circulating fluidized bed boiler blending combustion industry comprises an oil storage tank 4, wherein an inlet of the oil storage tank 4 is connected with an oil filter 3 and an oil discharge pump 2 at one time, an outlet at the lower end of the oil storage tank 4 is connected to an oil supply pipeline of a double-flow spray gun 11 through an oil supply pump recirculation valve 6, the double-flow spray gun 11 is connected with a secondary air pipe 30 at the upper end of a hearth 28, the hearth 28 is also connected with a belt feeder 25, the belt feeder 25 is connected with an outlet at the lower end of a solid hazardous waste storage bin 21 through a belt conveyor 23, and an outlet at the upper end of the solid hazardous waste storage bin 21 is connected with the other end of a screw conveyor 20 and is used for receiving solid hazardous waste of a solid hazardous waste pulling truck 17; the secondary air pipe 30 and the double-flow spray gun 11 are also respectively connected with an air storage tank 16; a coal bin (26) for arching coal is also arranged above the belt coal feeder 25; the flue gas bin is connected to the outlet flue of furnace 28, horizontal flue 34 is connected to the flue gas bin upper end, the flue gas bin lower extreme has set gradually separator 31, feed back mechanism 32 is connected to again the combustion zone of furnace 28.
The upper end of the tank 4 is also connected to the oil supply line of the dual flow lance 11 via a tank overflow valve 12. The oil supply pipeline is provided with an oil supply pipeline pressure gauge 7, an oil supply pipeline thermometer 8, an oil supply pipeline flowmeter 9 and an oil supply pipeline flow regulating valve 10. The solid-state dangerous waste carrying vehicle 17 is discharged to a vibrating feeder 19 through a discharge hopper, and the vibrating feeder 19 is in butt joint with the screw conveyor 20. The solid dangerous waste storage bin 21 is also connected to a primary air pipe 29 at the lower end of the hearth 28 through an exhaust fan 27. The oil supply line is also connected via a valve to the secondary air line 30 and shares an inlet line with the air compressor 15. An electronic scale 24 is also arranged on the belt conveyor 23. The air storage tank 16 is also connected with a compressed air pipeline 14 for instruments and an air compressor 15.
The oil tank truck, the oil unloading pump, the oil filter, the oil storage tank liquid level meter, the oil supply pump recirculation valve and the oil storage tank overflow valve are used for forming an oily liquid dangerous waste storage system together; the oily liquid dangerous waste pulled by the oil tank truck is pressurized by an oil unloading pump and then sent into an oil storage tank through an oil filter; the material of the oil storage tank is required to meet the corresponding strength requirement, and the container lining does not react with dangerous waste; the oil storage tank is provided with accessories such as a safety valve, a manhole door and the like in a matching way; the oil storage tank is provided with two liquid level meters for detecting the oil level of the oil storage tank, and an on-site remote transmission integrated liquid level meter is adopted; the oil supply pump recirculation valve is arranged between the oil supply pump outlet and the oil storage tank, and after the oil supply pump recirculation valve is opened, various oily liquid dangerous wastes in the oil storage tank are uniformly mixed; the oil level of the oil storage tank reaches the upper limit of detection of the liquid level meter, and an overflow valve of the oil storage tank is opened, so that oily liquid waste is directly sent into the circulating fluidized bed boiler for combustion; the oil supply pump, the oil heater, the oil supply pipeline pressure gauge, the oil supply pipeline thermometer, the oil supply pipeline flowmeter and the oil supply pipeline flow regulating valve form an oily liquid hazardous waste conveying system together; the oil supply pump pressurizes oily liquid dangerous waste to about 1.0MPa, and the oil supply pipeline pressure gauge is used for monitoring the pressure and adopts an on-site remote transmission integrated pressure gauge; the oil heater heats the oily liquid dangerous waste to about 80 ℃, and the oil supply pipeline thermometer is used for monitoring the temperature and adopts an on-site remote transmission integrated thermometer; the oil supply pipeline flow regulating valve is used for regulating the oil quantity fed into the double-flow spray gun, the oil supply pipeline flowmeter is used for monitoring the flow, and a remote-transmission flowmeter is adopted; the oil supply pipeline flow regulating valve is used for regulating the oil quantity fed into the double-flow spray gun, and the oil quantity is required to be determined according to the type of the blended burning liquid dangerous waste and the content of various components; the oily liquid hazardous waste injection system is composed of a compressed air pipeline for the instrument, an air compressor, an air storage tank and a double-flow spray gun; the air source of the air storage tank is 2 paths in total, one path is supplied by a compressed air pipeline for the router, and the other path is supplied by an air compressor. The air compressor is used as a standby air source of a compressed air pipeline for the instrument; the gas storage tank is provided with accessories such as a safety valve, a manhole door and the like in a matching way; the pressure of compressed air at the outlet of the air storage tank is about 0.8MPa, and the compressed air is stopped to be sent into the double-flow spray gun for use; compressed air in the double-flow spray gun atomizes oily liquid dangerous waste into liquid small particles, the liquid small particles are sent into a secondary air pipeline of the circulating fluidized bed, and the atomized oily liquid dangerous waste is sent into a hearth of the circulating fluidized bed to be combusted through the secondary air pipeline; the solid dangerous waste transporting truck, the discharging hopper, the vibrating feeder, the screw conveyor, the solid dangerous waste storage bin, the discharging valve, the belt conveyor, the electronic scale and the waste gas fan form a solid dangerous waste transferring, storing and conveying system together; the solid dangerous waste carrying vehicle sends solid dangerous waste into a discharge hopper, and the solid dangerous waste is crushed before being sent into the discharge hopper; the solid dangerous waste in the discharge hopper is sent into a screw conveyor by a vibrating feeder, and then is sent into a solid dangerous waste storage bin by the screw conveyor; the lower part of the dangerous waste storage bin is provided with a discharge valve, and the discharge valve uniformly feeds the solid dangerous waste into the belt conveyor; the belt conveyor uniformly feeds the solid dangerous waste into the belt coal feeder; the belt conveyor is provided with an electronic scale in a matching way, the electronic scale is used for monitoring the hour treatment capacity of the solid dangerous waste fed into the belt coal feeder, and the hour treatment capacity is determined according to the types of the blended solid dangerous waste and the content of various components; the waste gas fan collects peculiar smell generated by the solid dangerous waste and sends the peculiar smell to a primary air pipeline of the circulating fluidized bed; the belt coal feeder sends the mixture of raw coal and solid dangerous waste into a circulating fluidized bed hearth for combustion; the circulating fluidized bed boiler is matched with a dedusting, desulfurizing and denitrating system, so that the flue gas discharged after the boiler is mixed with industrial solid and oily liquid dangerous waste is ensured to meet the environmental protection requirement.
The action process of the utility model is as follows:
the oily liquid dangerous waste is filtered by the oil unloading pump (2) through the oil filter (3) and then is sent to the oil storage tank (4), the material of the oil storage tank (4) is required to meet the corresponding strength requirement, and the container lining does not react with the dangerous waste. The oily liquid hazardous waste is fully mixed in the oil storage tank (4) through the oil supply pump (5) and the oil supply pump recycling valve (6), and then is sent into the oil heater (14) by the oil supply pump (5) to be heated to about 80 ℃. The heated and diluted oily liquid dangerous waste is sent to a double-flow spray gun (11) after the flow is regulated by an oil supply pipeline flow regulating valve (10); the compressed air is sent into an air storage tank (16) from an enterprise internal compressed air production line through an instrument compressed air pipeline (14), and an air compressor (15) is used as a standby air source (if an in-plant air source encounters a fault or overhauls, the air is supplied by an air compressor); the compressed air is also sent into the double-flow spray gun (11) by the air storage tank (16); the double-flow spray gun (11) atomizes oily liquid dangerous waste and then sends the atomized oily liquid dangerous waste into the secondary air pipe (30) and finally into the hearth (28) for burning. The solid dangerous waste is transported to a discharge hopper by a solid dangerous waste pulling and transporting vehicle (17), then is sent to a screw conveyor (20) by a vibrating feeder (19), and is sent to a solid dangerous waste storage bin (21) by the screw conveyor (20); the discharge valve (22) and the belt conveyor (23) are used for conveying the solid dangerous waste to the belt coal feeder (25); the solid dangerous waste is uniformly mixed with raw coal and is sent to a circulating fluidized bed hearth (28) together with the raw coal for combustion; the peculiar smell generated by the solid dangerous waste is collected by an exhaust fan (27) and sent to a primary air pipeline, and finally sent to a hearth (28) for burning. And pollutants such as sulfur dioxide, nitrogen oxides, particulate matters and the like generated by mixing and burning solid and oily liquid dangerous wastes in the circulating fluidized bed boiler are treated by a boiler flue gas dust removal desulfurization and denitrification system and are finally sent to a chimney by a suction fan for emission.
The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.
Claims (9)
1. The utility model provides a circulating fluidized bed boiler blending industry solid-state, oily liquid hazardous waste system, its characterized in that includes oil storage tank (4), oil storage tank (4)'s entry once connects oil filter (3) and oil discharge pump (2), oil storage tank (4)'s lower extreme export is connected to the oil supply pipeline of double flow spray gun (11) through oil supply pump recirculation valve (6), secondary air pipe (30) of furnace (28) upper end are connected to double flow spray gun (11), furnace (28) still connect belt feeder (25), the export of solid-state hazardous waste storage bin (21) is connected through belt conveyor (23) to belt feeder (25), the export of solid-state hazardous waste storage bin (21) upper end is connected screw conveyor (20) other end and is used for receiving solid-state hazardous waste of solid-state hazardous waste transport truck (17); the secondary air pipe (30) and the double-flow spray gun (11) are also respectively connected with an air storage tank (16); a coal bin (26) for arching coal is also arranged on one side of the belt coal feeder (25); the flue gas bin is connected to the outlet flue of furnace (28), horizontal flue (34) are connected to flue gas bin upper end, separator (31), feed back mechanism (32) have been set gradually to flue gas bin lower extreme, feed back mechanism (32) are connected to again the combustion zone of furnace (28).
2. The circulating fluidized bed boiler co-firing industrial solid, oily liquid hazardous waste system according to claim 1, characterized in that the upper end of the oil storage tank (4) is also connected to the oil supply pipeline of the dual flow lance (11) through an oil storage tank overflow valve (12).
3. The solid and oily liquid hazardous waste system for the circulating fluidized bed boiler co-firing industry according to claim 1, wherein the oil supply pipeline is provided with an oil supply pipeline pressure gauge (7), an oil supply pipeline thermometer (8), an oil supply pipeline flowmeter (9) and an oil supply pipeline flow regulating valve (10).
4. The circulating fluidized bed boiler co-firing industrial solid, oily liquid hazardous waste system of claim 1, wherein the solid hazardous waste haulage car (17) is discharged through a discharge hopper to a vibratory feeder (19), the vibratory feeder (19) interfacing with the screw conveyor (20).
5. The solid and oily hazardous waste system of the circulating fluidized bed boiler co-firing industry of claim 1, wherein the solid hazardous waste storage bin (21) is further connected to a primary air pipe (29) at the lower end of the hearth (28) through an exhaust fan (27).
6. The circulating fluidized bed boiler co-firing industrial solid, oily liquid hazardous waste system of claim 1, wherein the oil supply conduit is further connected via a valve to a secondary air conduit (30) and shares an inlet conduit with the air compressor (15).
7. The circulating fluidized bed boiler co-firing industrial solid and oily liquid hazardous waste system according to claim 1, wherein an electronic scale (24) is further arranged on the belt conveyor (23).
8. The circulating fluidized bed boiler co-firing industrial solid and oily liquid hazardous waste system according to claim 1, wherein the air storage tank (16) is further connected with a compressed air pipeline (14) for instruments and an air compressor (15) respectively.
9. The circulating fluidized bed boiler co-firing industrial solid and oily liquid hazardous waste system according to claim 1, wherein the oil supply pipeline is further provided with an oil heater (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320333794.8U CN219588927U (en) | 2023-02-26 | 2023-02-26 | Solid and oily liquid hazardous waste system for mixed combustion industry of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320333794.8U CN219588927U (en) | 2023-02-26 | 2023-02-26 | Solid and oily liquid hazardous waste system for mixed combustion industry of circulating fluidized bed boiler |
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| Publication Number | Publication Date |
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| CN219588927U true CN219588927U (en) | 2023-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320333794.8U Active CN219588927U (en) | 2023-02-26 | 2023-02-26 | Solid and oily liquid hazardous waste system for mixed combustion industry of circulating fluidized bed boiler |
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| Country | Link |
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| CN (1) | CN219588927U (en) |
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2023
- 2023-02-26 CN CN202320333794.8U patent/CN219588927U/en active Active
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