CN108546568B - Self-balancing liquid level takes waste pot gasifier - Google Patents

Self-balancing liquid level takes waste pot gasifier Download PDF

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Publication number
CN108546568B
CN108546568B CN201810354857.1A CN201810354857A CN108546568B CN 108546568 B CN108546568 B CN 108546568B CN 201810354857 A CN201810354857 A CN 201810354857A CN 108546568 B CN108546568 B CN 108546568B
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wall
liquid level
channel
gasifier
self
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CN108546568A (en
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马宏波
岳军
王帅
宋文军
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Beijing Qing Chuang Jin Hua Technology Co ltd
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Beijing Qing Chuang Jin Hua Technology Co ltd
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Priority to ZA2018/03093A priority patent/ZA201803093B/en
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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
    • 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
    • C10J3/72—Other features
    • C10J3/74—Construction of shells or jackets
    • C10J3/76—Water jackets; Steam boiler-jackets
    • 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
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • 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
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat boilers
    • 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
    • C10J2300/093—Coal
    • 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
    • C10J2300/0959—Oxygen
    • 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
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • C10J2300/1615—Stripping
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Abstract

The invention relates to a self-balancing liquid level waste boiler gasification furnace, which comprises a shell and an internal component part, wherein the top of the shell is provided with a multi-channel burner, the bottom of the shell is provided with a slag outlet, and the internal component part sequentially comprises a gasification section, a radiation section, a washing section and a slag pool from top to bottom. The gasifier can use coal with high ash fusion point to produce raw gas, and recover the scorching raw gas in the radiation section in the form of steam; in addition, the liquid level of the gasification furnace equipment can be kept basically constant through the structural arrangement of the washing section of the gasification furnace, and manual intervention is not needed; the washing section is provided with a baffling channel component, the crude gas and the ash are separated in the washing section, the slag enters the slag pool, and the separated crude gas enters the downstream after exiting the gasifier, so that the safety of the gasifier operation is fundamentally ensured.

Description

Self-balancing liquid level takes waste pot gasifier
Technical Field
The invention relates to the technical field of coal gasification, in particular to a self-balancing liquid level gasification furnace with a waste boiler.
Background
The gasification furnace of the present invention is a coal gasification furnace, also called gas producer, which is a furnace for producing combustible gas by using coal as a gasification fuel. The waste boiler (waste heat boiler) is a heat exchanger for producing steam by using high-temperature material flow in the production process as a heat source, and is a cooler for the high-temperature material flow in the process flow and a power device for providing the steam by using waste heat.
In the related art, the gasification furnace with the waste boiler recovers the radiant heat of high-temperature raw gas in the form of steam, and then chills the raw gas to a required temperature by using water. The existing gasification furnace with the waste boiler needs to ensure that a water film channel is positioned at a safe position below a liquid level by adjusting the flow of discharged ash water to control the liquid level of a chilling chamber, but the manual operation and the control of the liquid level by an instrument cannot ensure all things without loss, and certain potential safety hazards exist.
Chinese patent document No. CN202881213U discloses a liquid level holding device of a chilling chamber of a gasification furnace in a water chilling process, which comprises a gasification furnace main body, a washing tower, a high-pressure condensate tank and a condensate pump; wherein, the product gas outlet duct and the scrubbing tower intercommunication of gasifier main part, high-pressure condensate tank pass through the condensate pump respectively with the gasifier main part, product gas outlet duct and scrubbing tower intercommunication, it still includes the condensate moisturizing pipe, the condensate moisturizing pipe communicates with the condensate inlet tube on the product gas outlet duct of gasifier main part, be equipped with the connection movable joint on the middling pressure nitrogen gas intake pipe top of gasifier main part, middling pressure nitrogen gas intake pipe and condensate moisturizing pipe are through being connected movable joint swing joint, be equipped with the stop valve respectively at condensate moisturizing pipe and middling pressure nitrogen gas intake pipe. Has the advantages that: the operation period of the gasification furnace is prolonged, the times of furnace turnover are reduced, and the economic loss and the safety risk are reduced.
The Chinese patent document with application publication number CN104101402A discloses an accurate measurement system for the liquid level of a chilling chamber of a gasification furnace, which comprises the chilling chamber of the gasification furnace and a differential pressure liquid level meter, wherein a double-flange differential pressure liquid level transmitter connected with a density operation module through a signal line is arranged at the lower part of the chilling chamber of the gasification furnace, and the density operation module is connected with the differential pressure liquid level meter through the signal line; the upper flange opening and the lower flange opening on the double-flange differential pressure liquid level transmitter are respectively arranged at the lower part of the quenching chamber of the gasification furnace, and the part of the upper flange opening connected with the quenching chamber of the gasification furnace is positioned between the minimum operation liquid level and the baking furnace liquid level. The accurate measuring system of the invention not only can measure the actual height of the liquid level in real time, but also can ensure the measurement of the liquid level during the oven drying.
The method and the device for maintaining the liquid level of the gasification furnace are complex in structure and high in cost, and still need manual operation. Therefore, a gasification furnace product which has a simple structure, is convenient to install and maintain, does not need manual operation and can fundamentally ensure the liquid level safety of the gasification furnace is needed in the field; in addition, the gasifier should be provided with a waste boiler assembly from the viewpoint of energy conservation and comprehensive utilization of energy.
Disclosure of Invention
In order to solve the technical problems, the invention provides a self-balancing liquid level gasification furnace with a waste pot, which can use coal with high ash melting point and low slurry concentration for producing crude gas, recover the radiant heat of the scorching crude gas in a steam mode, and enable gasification furnace equipment to keep the liquid level basically constant through a gasification furnace structure without manual intervention, thereby fundamentally ensuring the operation safety of the gasification furnace.
In order to achieve the purpose, the invention provides a self-balancing liquid level waste boiler gasification furnace, which comprises: a housing and an internal component; the top of the shell is provided with a multi-channel burner, the bottom of the shell is provided with a slag outlet, the internal component part sequentially comprises a gasification section, a radiation section, a washing section and a slag pool from top to bottom, wherein,
the gasification section comprises a membrane water-cooled wall and a heat-resistant channel, and the inner area of the membrane water-cooled wall is a gasification chamber; the burner penetrates through the membrane water-cooled wall and enters the gasification chamber; the bottom of the gasification chamber is connected with a heat-resistant channel;
the radiation section comprises a built-in radiation waste boiler assembly; the inner area limited by the built-in radiation waste pot assembly is a radiation chamber, the heat-resistant channel extends into the radiation chamber, and the bottom of the radiation chamber is connected with a washing section;
the washing section comprises a washing water inlet pipeline, a baffling channel assembly, a washing water internal part and a raw gas outlet channel; the deflection channel assembly comprises an inner wall and an outer wall, the outer wall is sleeved outside the inner wall, and a deflection channel with a closed top end is formed between the outer wall and the inner wall; the washing water internals are arranged at the lower part of the baffling channel component; one end of the crude gas outlet channel extends into the baffling channel, and the other end of the crude gas outlet channel extends out of the shell; the washing water inlet pipeline penetrates through the shell and is connected with a washing water internal part;
the upper part of the slag pool is connected with the washing section, and the lower part of the slag pool is a slag outlet; the lower ends of the inner wall and the outer wall of the baffling channel assembly extend below a liquid level line of the slag pool; the opening of the crude gas outlet channel in the deflection channel is higher than the lower ends of the inner and outer walls of the deflection channel assembly in the vertical direction.
Further, the lower end of the outer wall of the deflection channel assembly is lower than the lower end of the inner wall in the axial height of the housing.
Furthermore, the inner wall and the outer wall of the baffling channel assembly are both cylindrical and are arranged in the same central shaft.
Furthermore, the outer wall of the baffling channel assembly is in a shape of a cone cylinder and is arranged with the inner wall of the cylinder in a concentric shaft mode, and the diameter of the lower end of the outer wall is larger than that of the upper end of the outer wall. The arrangement mode increases the heat exchange efficiency on one hand; on the other hand, the crude gas is reduced from escaping to the outside of the outer membrane type wall due to the action of the chilling water film falling from the surface of the outer membrane type wall and the contracted space between the lower end of the outer membrane type wall and the inner wall of the shell.
In one embodiment, the lower end of the inner wall of the deflecting channel assembly is 40 to 100cm, preferably 50 to 80cm, more preferably 60 to 70cm, below the lower edge of the raw gas outlet channel in the axial height of the housing. The distance considers the upward impact speed and the peripheral diffusion of the crude gas after baffling, so that the crude gas can penetrate through a surface liquid layer and can effectively separate solid particles.
In one embodiment, the lower end of the outer wall of the deflection channel assembly is more than 800mm, preferably 900-. The distance takes the arrangement space of the inner part of the gasification furnace and the liquid sealing function of the outer film type wall into consideration, and the optimal balance is obtained.
In one embodiment, the difference between the inner diameter of the outer wall and the outer diameter of the inner wall of the deflection channel assembly is 300-900mm, preferably 400-800mm, and more preferably 500-600 mm. The distance takes the ascending space and pressure of the crude gas into consideration, and various requirements of crude gas treatment capacity can be met. When the outer wall of the deflection passage assembly is in the shape of a cone, the difference between the inner diameter of the outer wall and the outer diameter of the inner wall refers to the difference between the inner diameter of the outer wall and the outer diameter of the inner wall at the middle of the inner wall at the axial height of the housing.
In one embodiment, the refractory channel at the bottom of the gasification chamber is a rigid seal configuration with the gasification chamber membrane water wall.
In one embodiment, the refractory channel is elastically sealed at the junction with the radiant chamber.
In one embodiment, the internal radiant waste boiler assembly employs a double-sided water cooled wall arrangement or a partially double-sided water cooled wall arrangement.
The technical scheme of the invention has the characteristics that:
the equipment has reasonable structure and convenient installation and maintenance, and the gasifier equipment can keep constant liquid level self-balance through the structural design of the gasifier without manual intervention, thereby fundamentally ensuring the safety of the operation of the gasifier. The membrane type water-cooled wall can ensure that the temperature of the shell of the gasification section is stable and does not exceed the temperature as the protection device of the shell of the gasification section, is not influenced by the reaction temperature in the gasification chamber, and can completely accept the test of high ash fusion point coal. The built-in radiation waste pot component is mainly used for absorbing radiant heat of scorching hot crude gas to generate steam for a generator set to generate electricity, and is also used as a radiation section shell protection device to ensure that the temperature of the radiation section shell is stable and does not exceed the temperature. The washing chamber can be discharged out of the gasification furnace together with the washed crude gas in an overflow mode without arranging a grey water outlet and controlling the liquid level of the washing chamber, and the liquid level height of the washing chamber is kept constant. The danger of the overtemperature of the shell of the waste boiler section and the washing section is isolated from the source, and the structural form can ensure that the gasification furnace equipment with the waste boiler is safe and reliable in the real sense.
Drawings
FIG. 1 is a schematic sectional view of a self-balancing liquid level waste boiler gasifier according to an embodiment of the present invention;
reference numerals:
the self-balancing liquid level waste boiler gasification furnace comprises a shell (1) with a waste boiler, a burner (2), a membrane water-cooled wall (3), a heat-resisting channel (4), a radiation waste boiler assembly (5), a baffling channel assembly (6), a washing water internal part (7), a washing water inlet pipeline (8), a crude gas outlet channel (9) and a slag outlet (11);
a gasification chamber (100), a radiation chamber (200), a washing chamber (300) and a slag pool (400).
Detailed Description
The technical solution of the present invention is further illustrated by the following examples and the accompanying drawings. Examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. It should be understood that the embodiments described below by referring to the drawings are only exemplary and are intended to illustrate the present invention, and should not be construed as limiting the present invention.
Fig. 1 shows a schematic cross-sectional view of the overall structure of a self-balancing liquid level waste boiler gasification furnace according to an embodiment of the invention. Wherein:
self-balancing liquid level takes waste boiler gasifier includes: the top of the shell 1 is provided with a burner 2, and the bottom of the shell is provided with a slag outlet 11; the internal component part sequentially comprises a gasification reaction section, a radiation section, a washing section and a slag pool from top to bottom, wherein the gasification section comprises a membrane water-cooled wall 3 and a heat-resistant channel 4, and the internal area of the membrane water-cooled wall 3 is a gasification chamber 100; the burner 2 penetrates through the membrane water-cooled wall 3 and enters the gasification chamber 100; the bottom of the gasification chamber 100 is connected to the refractory channel 4. The radiation section comprises a radiation waste pan assembly 5, and the inner area of the radiation waste pan assembly 5 is a radiation chamber 200; the heat-resisting channel 4 extends into the radiation chamber 200, and the bottom of the radiation chamber 200 is connected with a baffling channel assembly 6; the radiation waste boiler assembly 5 adopts a partial double-faced water-cooled wall arrangement mode. The washing section comprises a deflection channel assembly 6 and a crude gas outlet channel 9, and the inner wall and the outer wall of the deflection channel assembly 6 are arranged coaxially. The baffling channel assembly 6 is connected with the radiation chamber 200, the lower part of the baffling channel assembly extends into the slag pool 400, and a washing chamber 300 is arranged in the outer wall of the baffling channel assembly 6; the outer wall of the deflection channel assembly 6 is arranged outside the inner wall, the lower part of the deflection channel assembly extends into the slag pool 400, and a deflection channel with a sealed top end is formed between the deflection channel assembly and the inner wall. One end of the crude gas outlet channel 9 extends into the deflection channel, and the other end extends out of the shell 1. The washing stage 300 is further provided with a washing water internals 7, to which washing water inlet conduit 8 is connected the washing water internals 7. The upper part of the slag pool 400 is connected with a washing section, and the lower part is a slag outlet 11; the lower ends of the inner wall and the outer wall of the baffling channel assembly 6 both extend below the liquid level line of the slag pool 400, and the lower end of the outer wall is lower than the lower end of the inner wall.
In the vertical direction, the lower end of the inner wall of the baffling channel component 6 is lower than the 950cm of the crude gas outlet channel; the lower end of the outer wall is 1000mm lower than the lower end of the inner wall; the difference between the inner diameter of the outer wall and the outer diameter of the inner wall of the deflection channel assembly 6 was 500 mm.
The working process of the self-balancing liquid level waste boiler gasification furnace is as follows:
coal water slurry and oxygen which are used as coal gasification reaction raw materials are mixed through a burner 2 and are sprayed into the gasification chamber 100, and gasification reaction is carried out in the gasification chamber 100 to generate crude coal gas and slag. The membrane wall 3 can be used as a protection device for the shell of the gasification section to ensure that the temperature of the shell of the gasification section is stable and is not influenced by the reaction temperature in the gasification chamber 100. Crude gas and slag generated by reaction enter the built-in radiation waste pot component 5 from the heat-resistant channel 4 at the bottom of the gasification chamber 100, the built-in radiation waste pot component 5 mainly has the function of absorbing steam generated by the radiation heat of scorching crude gas to supply a generator set for power generation, and the built-in radiation waste pot component also serves as a protection device of a radiation section shell to ensure that the temperature is stable and does not exceed the temperature. The crude gas and slag from the radiation chamber 200 enter the slag pool 400 below the liquid level through the inner wall of the deflection channel assembly 6, the crude gas and slag are fully bubbled in the water bath of the slag pool to complete washing and cooling, then the crude gas diffuses to the periphery and enters the deflection channel along the outer wall of the deflection channel assembly 6, and the washing water which passes through the washing water internal part 7 in the process is cooled, and enters the subsequent process through the crude gas outlet channel 9.
The washing water enters the washing water internals 7 through a washing water inlet 8 and enters the washing chamber. On one hand, the washing water is used as washing water to continuously wash away the slag falling on the baffling channel, so that slag accumulation and blockage are prevented; on the other hand, the loss of water due to heat evaporation is compensated. The washing water is used for washing and cooling the crude gas and liquid sealing the baffling channel. Washing water and crude gas are changed into grey water after mass transfer and heat transfer, fine ash in the crude gas enters the grey water, the grey water and the crude gas overflow to a crude gas outlet channel 9 simultaneously in an overflow mode, and then the grey water is sent to a rear working section; the larger slag is deposited at the bottom of the slag bath 400 and discharged through the slag outlet 11.
In the above embodiment, the chilling chamber is not provided with a grey water outlet, the liquid level of the chilling chamber is not controlled, the washed grey water and the chilled crude gas are discharged out of the gasification furnace in an overflow mode, and the liquid level height of the chilling chamber is kept basically constant. The structure arrangement cuts off the danger of the overtemperature of the chilling section shell from the source, so that the gasification furnace equipment with the waste boiler is intrinsically safe in the real sense, and errors possibly generated by manual operation and instrument monitoring are eliminated.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims (10)

1. A self-balancing liquid level takes waste pot gasifier, the gasifier includes: a housing and an internal component; the top of the shell is provided with a multi-channel burner, the bottom of the shell is provided with a slag outlet, and the internal component part sequentially comprises a gasification section, a radiation section, a washing section and a slag pool from top to bottom, wherein,
the gasification section comprises a membrane water-cooled wall and a heat-resistant channel, and the inner area of the membrane water-cooled wall is a gasification chamber; the burner penetrates through the membrane water-cooled wall and enters the gasification chamber; the bottom of the gasification chamber is connected with a heat-resistant channel;
the radiation section comprises a built-in radiation waste boiler assembly; the inner area limited by the built-in radiation waste pot assembly is a radiation chamber, the heat-resistant channel extends into the radiation chamber, and the bottom of the radiation chamber is connected with a washing section;
the washing section comprises a washing water inlet pipeline, a baffling channel assembly, a washing water internal part and a raw gas outlet channel; the deflection channel assembly comprises an inner wall and an outer wall, the outer wall is sleeved outside the inner wall, and a deflection channel with a closed top end is formed between the outer wall and the inner wall; the washing water internals are arranged at the lower part of the baffling channel component; one end of the crude gas outlet channel extends into the baffling channel, and the other end of the crude gas outlet channel extends out of the shell; the washing water inlet pipeline penetrates through the shell and is connected with a washing water internal part; the washing chamber is not provided with a grey water outlet, the liquid level of the washing chamber is not controlled, and the washed crude gas are discharged out of the gasification furnace together in an overflow mode;
the upper part of the slag pool is connected with the washing section, and the lower part of the slag pool is a slag outlet; the lower ends of the inner wall and the outer wall of the baffling channel assembly extend below a liquid level line of the slag pool; the opening of the crude gas outlet channel in the deflection channel is higher than the lower ends of the inner and outer walls of the deflection channel assembly in the vertical direction.
2. The self-balancing liquid level waste pot gasifier of claim 1, wherein the lower end of the outer wall of the deflection channel assembly is lower than the lower end of the inner wall in the axial height of the housing.
3. The self-balancing liquid level waste pot gasifier of claim 2, wherein the inner wall and the outer wall of the baffling channel assembly are cylindrical and concentric with the central axis.
4. The self-balancing liquid level waste pot gasifier of claim 2, wherein the outer wall of the deflection channel assembly is in a conical cylinder shape and is concentric with the inner wall of the cylindrical cylinder shape, and the diameter of the lower end of the outer wall is larger than that of the upper end of the outer wall.
5. The self-balancing liquid level waste boiler gasification furnace according to any one of claims 2 to 4, wherein the lower end of the inner wall of the deflection channel assembly is 40-100cm lower than the lower edge of the raw gas outlet channel in the axial height of the housing.
6. The self-balancing liquid level waste pot gasifier of any one of claims 2 to 4, wherein the lower end of the outer wall of the deflection channel assembly is more than 800mm lower than the lower end of the inner wall in the axial height of the housing.
7. The self-balancing liquid level waste boiler gasification furnace as claimed in any one of claims 2-4, wherein the difference between the inner diameter of the outer wall and the outer diameter of the inner wall of the deflection channel assembly is 300-900 mm.
8. The self-balancing liquid level waste pot gasifier of claim 1, wherein in one embodiment the refractory channel at the bottom of the gasifier chamber and the gasifier chamber membrane water wall are of a rigid seal construction.
9. The self-balancing liquid level waste boiler gasification furnace according to claim 1, wherein the joint of the heat-resistant channel and the radiation chamber is elastically sealed.
10. The self-balancing liquid level waste-pan gasifier of claim 1, wherein the built-in radiation waste pan assembly is arranged in a double-sided water-cooled wall arrangement or a partial double-sided water-cooled wall arrangement.
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ZA2018/03093A ZA201803093B (en) 2018-04-19 2018-05-11 Self balanced liquid level gasification furnace with waste boiler

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CN204434565U (en) * 2015-02-04 2015-07-01 中国五环工程有限公司 With the vapourizing furnace of radiation waste pot
CN107033966A (en) * 2016-02-04 2017-08-11 清华大学煤燃烧工程研究中心 Gasification furnace with hot-gas recoverer
CN106867590A (en) * 2017-04-13 2017-06-20 华东理工大学 A kind of useless pot Quench integral type water-coal-slurry water cooled wall gasification furnace and gasification process
CN206843382U (en) * 2017-06-07 2018-01-05 神华集团有限责任公司 High efficient heat recovery carries flow gasification stove

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