CN110846078A - High-temperature feeding system for high-viscosity waste of gasification furnace - Google Patents
High-temperature feeding system for high-viscosity waste of gasification furnace Download PDFInfo
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- CN110846078A CN110846078A CN201911183714.XA CN201911183714A CN110846078A CN 110846078 A CN110846078 A CN 110846078A CN 201911183714 A CN201911183714 A CN 201911183714A CN 110846078 A CN110846078 A CN 110846078A
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
- C10J3/56—Apparatus; Plants
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/48—Apparatus; Plants
- C10J3/50—Fuel charging devices
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/46—Gasification of granular or pulverulent flues in suspension
- C10J3/54—Gasification of granular or pulverulent fuels by the Winkler technique, i.e. by fluidisation
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2200/00—Details of gasification apparatus
- C10J2200/15—Details of feeding means
- C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/0946—Waste, e.g. MSW, tires, glass, tar sand, peat, paper, lignite, oil shale
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0956—Air or oxygen enriched air
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- Oil, Petroleum & Natural Gas (AREA)
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- Chemical Kinetics & Catalysis (AREA)
- General Health & Medical Sciences (AREA)
- Inorganic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a high-temperature feeding system for high-viscosity waste of a gasification furnace, which comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively. The pneumatic gate valve and the sealing cylinder can seal the high-temperature spray gun in a grading way, when the spray gun is not used, the cylinder for the high-temperature spray gun can be pulled into the sealing cylinder, and the pneumatic gate valve is closed to be isolated from the gasification furnace, so that on one hand, the high-temperature spray gun can be overhauled under the condition that the operation of the gasification furnace is not influenced, and the time and the cost are saved; in addition, the service life of the high-temperature spray gun can be prolonged.
Description
Technical Field
The invention belongs to the technical field of material conveying. In particular, the invention relates to a high-temperature feeding system of a gasification furnace for high-viscosity organic wastes.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
In recent years, with the rapid development of the pharmaceutical industry in China, a large amount of pharmaceutical waste with complex components is generated, and great pressure is brought to the environmental protection industry. In the production process, a lot of raw materials need to be extracted by water extraction and alcohol precipitation and alcohol extraction and water precipitation methods to extract effective substances, and some raw materials need to be processed by a dry distillation method, so that organic wastes such as sediment slag or dry distillation liquid and the like can be generated in the sedimentation process or the dry distillation process, and the organic wastes have the characteristics of large viscosity, high water content, complex components, strong acidity, high chromaticity, large peculiar smell, difficult decay and the like, and can potentially threaten the ecological environment and the human health if not properly treated. In order to solve the problems of reduction, harmlessness and resource utilization of high-viscosity organic wastes, the high-viscosity organic wastes are treated as raw materials and are converted into fuel gas through biomass gasification to generate steam through combustion, but the feeding is difficult, particularly the raw materials are conveyed to a high-temperature hearth at the temperature of 650 plus 750 ℃, contain combustible components, are coked at high temperature when entering a feeding pipe and are not sprayed into the hearth, the feeding pipe and a spray nozzle are blocked, and in addition, the high-viscosity organic wastes enter the hearth to be atomized well, the requirement on a pump is high, and the energy consumption is high.
Disclosure of Invention
The invention aims to solve the technical problem that under the high-temperature working condition, the feeding of organic viscous waste is unsmooth due to blockage of a feeding pipe and a nozzle, and provides a high-temperature feeding system of a gasification furnace for the high-viscosity organic waste.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
The invention develops a high-temperature feeding system of a gasification furnace for high-viscosity organic waste, ensures smooth feeding and good atomization effect, is convenient for full pyrolysis and gasification, and has good practical significance.
In some embodiments, a screw pump 2 is provided between the lance 6 and the stirred-mix heating tank 1 to provide power to efficiently transport the material.
In some embodiments, the lance 6 comprises: the spray gun comprises a spray gun pipeline 10, an outer barrel 9 is arranged outside the spray gun pipeline 10, the outer barrel 9 is connected with a water pipe 11, the spray gun pipeline is connected with an air pipe 12, the temperature of the spray gun can be effectively reduced through a double-layer design, and high-temperature coking of materials is avoided.
In some embodiments, a vertical pipe centrifugal pump 8 is arranged between the spray gun 6 and the stirring mixing heating tank 1, so that part of cooling water is effectively mixed and used, and the utilization rate is improved.
The invention also provides a high-temperature feeding method of the high-viscosity waste of the gasification furnace, which comprises the following steps:
uniformly mixing high-viscosity waste or waste liquid, and heating to form a mixed solution;
mixing the mixed solution and compressed air at a high speed, atomizing, and injecting into a gasification furnace;
and in the injection process, the mixed liquid and cooling water exchange heat.
The application method is simple and efficient, and solves the problem that the high-temperature feeding of the high-viscosity waste is easy to block at present.
In some embodiments, the heating is carried out to 50-80 ℃, so that the fluidity of the materials is improved, and the mixing is facilitated.
In some embodiments, the temperature of the mixed liquor is less than 100 ℃ during the injection process, and the mixed liquor is over-heated and subsequently coked at a high temperature to block the pipeline.
In some embodiments, the mixing ratio of the compressed air and the mixed liquid may be determined according to the actual working condition and the characteristics of the mixed liquid, and the application is not particularly limited.
The specific source and type of the waste liquid are not particularly limited, and in some embodiments, the waste liquid is a dry distillation liquid, which is a partial liquid product in the dry distillation process of the hawthorn seeds, so that the treatment efficiency is high.
The invention also provides a system for treating high-viscosity organic waste or waste liquid, which comprises: any one of the above-mentioned high temperature feed systems of gasifier high viscous waste.
The invention has the beneficial effects that:
(1) the pneumatic gate valve and the sealing cylinder can seal the high-temperature spray gun in a grading way, when the spray gun is not used, the cylinder for the high-temperature spray gun can be pulled into the sealing cylinder, and the pneumatic gate valve is closed to be isolated from the gasification furnace, so that on one hand, the high-temperature spray gun can be overhauled under the condition that the operation of the gasification furnace is not influenced, and the time and the cost are saved; in addition, the service life of the high-temperature spray gun can be prolonged.
(2) The high-temperature spray gun is made of high-temperature-resistant and corrosion-resistant materials, the temperature in the hearth is 650 plus 750 ℃ under the normal working condition, and 0.6MPa of compressed air is introduced into the spray gun pipeline, so that the spray gun is cooled and the pipeline is blown and swept, the ratio of the amount of the compressed air to the amount of the materials can be controlled, and the atomization effect is adjusted, so that the high-viscosity organic waste can be fully pyrolyzed and gasified.
(3) Interlayer water flowing between the inner spray gun pipeline and the outer cylinder of the high-temperature spray gun cools the spray gun, so that the temperature of waste liquid in the spray gun pipeline is below 100 ℃, and the waste liquid is prevented from carbonizing and coking in the spray gun pipeline to block a nozzle and a pipeline; in addition, hot water after the spray gun is cooled is supplemented to the hot water tank, so that energy consumption is reduced.
(4) The heating and stirring mixing tank is provided with the stirring device and the heating device, so that the high-viscosity organic waste is heated and mixed together, the high-viscosity organic waste is fully mixed, the high-viscosity organic waste is fully heated, and the viscosity of the waste is reduced; the heating and stirring mixing tank has the functions of isolation and heat preservation, and reduces heat loss.
(5) The application has the advantages of simple structure, convenience in operation and strong practicability.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of a high-temperature feeding system for high-viscosity waste of a gasification furnace according to example 1;
FIG. 2 is a schematic view of the structure of the high-temperature spray gun of embodiment 1;
the system comprises a stirring mixing heating tank 1, a 2-screw pump, a 3-sealing barrel, a 4-pneumatic gate valve, a 5-gasification furnace, a 6-high-temperature spray gun, a 7-air cylinder, an 8-vertical pipeline centrifugal pump, a 9-outer barrel, a 10-spray gun pipeline, an 11-water pipe and a 12-air pipe.
B-externally connecting compressed air.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
As introduced by the background technology, the method aims at the problems of difficult feeding, poor atomization effect and high energy consumption of the current highly viscous waste. Therefore, the invention provides a high-temperature feeding system of a gasification furnace for high-viscosity organic wastes, which comprises the following steps:
the high-temperature feeding system of the gasification furnace for the high-viscosity organic waste comprises a stirring mixing heating tank 1, a screw pump 2, a sealing barrel 3, a pneumatic gate valve 4, a gasification furnace 5, a high-temperature spray gun 6, a cylinder 7 and a vertical pipeline centrifugal pump 8.
And (3) placing the collected high-viscosity waste and waste liquid in a stirring and mixing tank, heating to 50-80 ℃, reducing the viscosity, uniformly stirring, pumping into a high-temperature spray gun 6 through a screw pump 2 under high pressure, and adjusting the amount of compressed air to ensure that the ratio of the amount of compressed air to the amount of fed materials just leads the atomization effect to be the best.
After the gasification furnace operates stably, the valve on the water pipe 11 is opened, the vertical pipeline centrifugal pump 8 is opened, the valve on the air pipe 12 is opened, and two cooling systems of the spray gun are opened; and opening the pneumatic gate valve 4, pushing the high-temperature spray gun 6 into the hearth of the gasification furnace 5 in the starting cylinder 7, sealing and compacting the sealing gland on the sealing cylinder 3, and finally starting the screw pump 2 to convey the raw materials.
The present invention is described in further detail below with reference to specific examples, which are intended to be illustrative of the invention and not limiting.
Example 1:
1. the residual waste produced in the Chinese medicine factory has high-viscosity precipitation slag, belongs to the starch and tannin class, and has similar components with the Chinese medicine slag; the dry distillation liquid is a partial liquid product in the dry distillation process of the hawthorn seeds, and the main components are wood vinegar and tar. Density of high-viscosity precipitation slag: 1200kg/m3Viscosity 10180 mPas at 20 ℃, viscosity 2295 mPas at 90 ℃ and ethanol concentration of about 10 percent. Density of dry distillation liquid: 1055kg/m3Viscosity at 20 ℃ is less than 100 mPas.
2. In order to ensure that the waste is fed smoothly and well atomized in the hearth and the pyrolysis and gasification are sufficient, the viscosity of the sediment slag is reduced: firstly, the sediment slag is directly heated to reduce the viscosity, and secondly, the sediment slag and the dry distillation liquid are mixed according to a certain proportion or are heated after being mixed to reduce the viscosity. Mixing the precipitation slag and the dry distillation liquid at the temperature of 20 ℃ in a ratio of 1:1, wherein the viscosity is 400mPa & s, and the pH value is 2.2-2.4. According to the mixing proportion, the heating temperature of the mixed solution is adjusted to 50-80 ℃ to reduce the mixed solution to proper viscosity, so that the feeding is smooth and the atomization effect is good.
3. After the fluidized bed gasification furnace stably runs, a valve on a water pipe 11 is opened, a vertical pipeline centrifugal pump 8 is opened, a valve on a gas pipe 12 is opened, and two cooling systems of a spray gun are opened; and opening the pneumatic gate valve 4, pushing the high-temperature spray gun 6 into the hearth of the gasification furnace in the starting cylinder 7, sealing and compacting a sealing gland on a sealing cylinder body, finally starting the screw pump 2 to convey the raw materials to the gasification furnace, and adjusting the compressed air amount to ensure that the ratio of the compressed air amount to the feeding amount is right and the atomization effect is best.
Example 2:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
The two sealing devices of the pneumatic gate valve 4 and the sealing cylinder 3 are arranged between the spray gun 6 and the gasification furnace 5, when the gasification furnace 5 operates stably, the spray gun 6 returns to the sealing cylinder 3 behind the pneumatic gate valve 4 from the gasification furnace 5, and then the pneumatic gate valve 4 is closed, so that the spray gun can be overhauled under the condition of not influencing the operation of the gasification furnace, the time is saved, the overhaul cost is reduced, and the economic benefit is improved; in addition, the service life of the high-temperature spray gun can be prolonged.
Example 3:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
And a screw pump 2 is arranged between the spray gun 6 and the stirring mixing heating tank 1 to provide power and effectively convey materials.
Example 4:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
The spray gun 6 includes: the spray gun comprises a spray gun pipeline 10, an outer barrel 9 is arranged outside the spray gun pipeline 10, the outer barrel 9 is connected with a water pipe 11, the spray gun pipeline is connected with an air pipe 12, the temperature of the spray gun can be effectively reduced through a double-layer design, and high-temperature coking of materials is avoided.
Example 5:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
And a vertical pipeline centrifugal pump 8 is arranged between the spray gun 6 and the stirring mixing heating tank 1, so that part of cooling water is effectively mixed, and the utilization rate is improved.
Example 6:
a high-temperature feeding system for high-viscosity waste of a gasification furnace comprises: the device comprises a stirring mixing heating tank 1, a sealing cylinder 3, a pneumatic gate valve 4, a gasification furnace 5 and a cylinder 7; the utility model discloses a gasification furnace, including sealed barrel 3, gasification furnace 5, pneumatic slide valve 4, spray gun 6 and cylinder 7, sealed barrel 3 penetrates in the gasification furnace 5, one side that sealed barrel 3 is close to gasification furnace 5 is provided with pneumatic slide valve 4, still be provided with spray gun in the sealed barrel 3, spray gun 6 links to each other with stirring mix-heating jar 1 and cylinder 7 respectively.
A high-temperature feeding method for high-viscosity waste of a gasification furnace comprises the following steps:
uniformly mixing high-viscosity waste or waste liquid, and heating to form a mixed solution;
mixing the mixed solution and compressed air at a high speed, atomizing, and injecting into a gasification furnace;
and in the injection process, the mixed liquid and cooling water exchange heat.
The application method is simple and efficient, and solves the problem that the high-temperature feeding of the high-viscosity waste is easy to block at present.
The heating is carried out to 50-80 ℃, so that the fluidity of the materials is improved, and the mixing is facilitated.
In the injection process, the temperature of the mixed solution is less than 100 ℃, the temperature is too high, and the mixed solution is subsequently coked at high temperature to block a pipeline.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or equivalents thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (10)
1. The utility model provides a high temperature charge-in system of high viscous waste of gasifier which characterized in that includes: the device comprises a stirring mixing heating tank (1), a sealing cylinder (3), a pneumatic gate valve (4), a gasification furnace (5) and a cylinder (7); the utility model discloses a gasification furnace, including sealed barrel (3), gasifier (5), one side that sealed barrel (3) are close to gasifier (5) is provided with pneumatic gate valve (4), still be provided with spray gun (6) in sealed barrel (3), spray gun (6) link to each other with stirring hybrid heating jar (1) and cylinder (7) respectively.
2. The high-temperature feeding system for highly viscous wastes of gasification furnaces according to claim 1, characterized in that a screw pump (2) is arranged between the lance (6) and the stirring mixing heating tank (1).
3. The high-temperature feeding system of highly viscous wastes of gasification furnace according to claim 1, wherein said lance (6) comprises: the spray gun device comprises a spray gun pipeline (10), an outer barrel (9) is arranged outside the spray gun pipeline (10), the outer barrel (9) is connected with a water pipe (11), and the spray gun pipeline is connected with an air pipe (12).
4. The high-temperature feeding system for highly viscous wastes of gasification furnaces as claimed in claim 1, characterized in that a vertical pipe centrifugal pump (8) is arranged between the lance (6) and the stirring mixing heating tank (1).
5. A high-temperature feeding method for high-viscosity waste of a gasification furnace is characterized by comprising the following steps:
uniformly mixing high-viscosity waste or waste liquid, and heating to form a mixed solution;
mixing the mixed solution and compressed air at a high speed, atomizing, and injecting into a gasification furnace;
and in the injection process, the mixed liquid and cooling water exchange heat.
6. The high-temperature feeding method for the highly viscous waste of the gasification furnace according to claim 5, wherein the heating is performed to 50-80 ℃.
7. The method for feeding highly viscous waste to a gasification furnace according to claim 5, wherein the temperature of the mixed liquid is less than 100 ℃ during the injection process.
8. The method for feeding highly viscous waste to a gasification furnace according to claim 5, wherein the waste liquid is a dry distillation liquid.
9. The method for feeding high-temperature viscous waste into a gasification furnace according to claim 8, wherein the dry distillation liquid is a part of liquid products in the dry distillation process of hawthorn seeds.
10. A system for treating highly viscous organic waste or waste liquid, comprising: the high-temperature feeding system of high-viscosity waste of gasification furnace of any one of claims 1 to 4.
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| CN110846078B CN110846078B (en) | 2021-01-15 |
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