Novel furnace body cloth wet type slag tapping gasification furnace

By introducing a circulating water jacket and a blower air distribution system into the gasifier, combined with an ash pan rotating device, the problem of slagging and clogging in the gasifier was solved, enabling continuous operation and uniform air distribution of the gasifier, preventing grate damage, and meeting the requirements of industrial production.

CN223688272UActive Publication Date: 2025-12-19HENAN HAIQI ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202423152029.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-19
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Existing gasifiers are prone to slag buildup and blockage of the air outlet during use, which can lead to high-temperature burnout of the grate, affecting continuous operation and uniform air distribution, and making it difficult to meet the needs of industrial production.

Method used

A wet-type slag-discharging gasifier with a furnace body was designed. It adopts an inner and outer sandwich structure, uses circulating water for cooling, and blows the air into the air chamber through a blower to achieve uniform air distribution. Combined with an ash pan rotating device and an explosion-proof water seal, it prevents slag formation and high-temperature burnout of the grate.

Benefits of technology

It effectively avoids slag buildup and blockage of the grate, ensures continuous operation and uniform air distribution of the gasifier, reduces furnace temperature, prevents grate damage, and meets the needs of industrial production.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223688272U_ABST
Patent Text Reader

Abstract

The utility model discloses a novel furnace body cloth wet type slag tapping gasification furnace which comprises a gasification furnace main body, a circulating water interlayer is arranged on the side face of the gasification furnace main body, a feeding hopper is arranged in the middle of the upper surface of the gasification furnace main body, a level gage is installed on the upper portion of the side face of the feeding hopper, and an auger is connected to the top of the feeding hopper. The furnace body cloth wet type deslagging gasification furnace is provided with an inner-layer and outer-layer interlayer structure, circulating water is introduced during operation, the temperature of the furnace body on one side of the hearth is effectively reduced, the furnace body is provided with an air inlet, air is blown to the air chamber through the fan, gas for gasification of raw materials in the furnace is met, air distribution is relatively uniform, deviant combustion cannot be generated, and the furnace body can be used for gasification of the raw materials in the furnace. The air pipe is cooled through circulating water in the circulating water interlayer, the temperature of an air outlet pipe opening is low, coking is not prone to occurring, and in conclusion, it can be known that the device can prevent the fire grate from slagging to block the air outlet, and the fire grate is prevented from being burnt out by high temperature.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gasification furnace, concretely to a novel furnace body air distribution wet type slagging gasification furnace. BACKGROUND

[0002] The biomass gasification furnace is just that biomass is used in the gasification furnace closed oxygen deficiency combustion, and the combustible gas is produced after dry distillation pyrolysis and thermochemical oxidation, and the biomass gasification furnace needs to be cleaned regularly when being used, the temperature of the gasification furnace is high, the raw material with more impurities is easy to slag, if the slagging is serious, the furnace needs to be stopped and cleaned, the equipment cannot work continuously, and the labor intensity of slag cleaning is big, the furnace is stopped for a long time, and it is difficult to meet the needs of normal industrial production, and secondly, the furnace grate slagging will block the air outlet, affect the air distribution uniformity, and further cause the local temperature of the furnace grate to be too high to exceed the tolerance temperature of the furnace grate, finally, the furnace grate will be burned out, and the furnace needs to be overhauled. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem of overcoming the defects of the prior art, and provides a novel furnace body air distribution wet type slagging gasification furnace, which avoids furnace grate slagging and blocks the air outlet, prevents high temperature from burning out the furnace grate, and effectively solves the problems in the background art.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A novel furnace body air distribution wet type slagging gasification furnace, including the gasification furnace main part, the side surface of the gasification furnace main part is equipped with circulating water interlayer, the middle position of the upper surface of the gasification furnace main part is equipped with the feeding hopper, the upper portion of the feeding hopper side is installed with the material level meter, the top of the feeding hopper is connected with the auger, the end of the auger is installed with the speed reducer, the end of the speed reducer is connected with the driving motor, the first drop opening is installed at the feeding port of the upper portion of the auger, the side of the first drop opening is installed with the wind shelter, the lower portion of the side of the gasification furnace main part is equipped with the material baffle, the lower portion of the side of the gasification furnace main part is equipped with a plurality of ventilation openings, the ventilation opening is connected with the air pipe, the outer side of the gasification furnace main part is equipped with the air chamber that communicates with the air pipe, the outer side of the air chamber is installed with the fan, the bottom of the ash tray is connected with the ash tray rotating device.

[0006] As a preferred technical scheme of the utility model, the edge position of the upper surface of the gasification furnace main part is equipped with the gas outlet.

[0007] As a preferred technical scheme of the utility model, the outer side of the gasification furnace main part is equipped with a plurality of supporting legs.

[0008] As a preferred technical scheme of the utility model, two adjacent supporting legs are connected with a second material falling opening matched with the material baffle, and the second material falling opening is located outside the ash tray.

[0009] As a preferred technical scheme of the utility model, the ash tray rotating device comprises a connecting column connected to the bottom of the ash tray, the periphery of the connecting column is connected with a ratchet wheel, the bottom of the connecting column is rotatably connected with a rotating support base, the rotating support base is fixedly connected with two supporting legs, two hydraulic cylinder mounting bases are symmetrically arranged at the edge position of the upper surface of the rotating support base, a hydraulic cylinder is horizontally mounted on the hydraulic cylinder mounting base, a mounting frame is connected to the movable end of the hydraulic cylinder, a fixing column matched with the ratchet wheel is connected to the end of the mounting frame, a spring plate is connected to the side surface of the hydraulic cylinder mounting base, and a supporting wheel matched with the mounting frame is mounted on the end of the spring plate.

[0010] As a preferred technical scheme of the utility model, the upper portion of the outer side of the gasification furnace body is connected with an explosion-proof water seal through a pipeline.

[0011] As a preferred technical scheme of the utility model, a thermocouple is arranged at the middle position of the outer side of the gasification furnace body.

[0012] Compared with the prior art, the utility model has the beneficial effects that:

[0013] The furnace body of the wet type slagging gasification furnace with the inner and outer layer sandwich structure is connected with the circulating water, the temperature of the furnace body on one side of the furnace chamber is effectively reduced, the furnace body is provided with an air inlet, air is blown to the air chamber by the fan, the gasification of the raw material in the furnace is met, the air distribution is relatively uniform, and the problem of uneven burning and affecting gasification is avoided, the circulating water in the circulating water sandwich reduces the temperature of the air pipe, the temperature of the air outlet pipe is low, and coking is not easy, and the device can avoid the slagging and blocking of the air outlet pipe, and prevent the high-temperature burning of the furnace. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 The utility model structure schematic diagram is shown.

[0015] Fig. 2 The ash tray rotating device structure schematic diagram of the utility model is shown.

[0016] As shown in the figure: first material inlet 1, windbreak device 2, speed reducer 3, auger 4, air outlet 5, thermocouple 6, support leg 7, ventilation opening 8, air chamber 9, grate 10, second material inlet 11, material blocking plate 12, ash pan 13, ash pan rotating device 14, rotating support seat 141, ratchet wheel 142, hydraulic cylinder mounting seat 143, hydraulic cylinder 144, spring plate 145, supporting wheel 146, connecting column 147, mounting frame 148, fixed column 149, air pipe 15, fan 16, explosion-proof water seal 17, material level meter 18, gasification furnace main body 19, feed hopper 20, circulating water interlayer 21, driving motor 22. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figs. 1-2 The utility model provides a technical scheme:

[0019] A novel furnace shaft air distribution wet type slagging gasification furnace, including gasification furnace main body 19, the side of gasification furnace main body 19 is provided with circulating water interlayer 21, the middle position of the upper surface of gasification furnace main body 19 is equipped with feed hopper 20, the upper portion of the side of feed hopper 20 is installed with material level meter 18, the top of feed hopper 20 is connected with auger 4, the end of auger 4 is installed with speed reducer 3, the end of speed reducer 3 is connected with driving motor 22, the feed inlet of the upper portion of auger 4 is installed with first material inlet 1, the side of first material inlet 1 is installed with windbreak device 2, the lower portion of gasification furnace main body 19 is installed with ash pan 13, the upper surface of ash pan 13 is equipped with grate 10 in gasification furnace main body 19, the edge position of the bottom of the side of gasification furnace main body 19 is connected with material blocking plate 12, the lower portion of the side of gasification furnace main body 19 is provided with multiple ventilation openings 8, ventilation opening 8 is connected with air pipe 15, the outside of gasification furnace main body 19 is equipped with air chamber 9 that communicates with air pipe 15, the outside of air chamber 9 is installed with fan 16, the bottom of ash pan 13 is connected with ash pan rotating device 14.

[0020] The outside of gasification furnace main body 19 is respectively equipped with water inlet and drain that communicate with circulating water interlayer 21.

[0021] The edge position of the upper surface of gasification furnace main body 19 is equipped with air outlet 5.

[0022] The lower portion of the outside of gasification furnace main body 19 is provided with multiple support legs 7.

[0023] The second material falling port 11 matched with the material blocking plate 12 is connected between two adjacent supporting legs 7 and located outside the ash tray 13.

[0024] The ash tray rotating device 14 comprises a connecting column 147 connected at the bottom of the ash tray 13, a ratchet wheel 142 connected at the circumferential surface of the connecting column 147, a rotating support base 141 rotatably connected at the bottom of the connecting column 147, the rotating support base 141 fixedly connected with two supporting legs 7, two hydraulic cylinder mounting bases 143 symmetrically arranged at the edge of the upper surface of the rotating support base 141, hydraulic cylinders 144 horizontally mounted on the hydraulic cylinder mounting bases 143, mounting racks 148 connected with the movable ends of the hydraulic cylinders 144, fixed columns 149 connected at the ends of the mounting racks 148 and matched with the ratchet wheel 142, spring plates 145 connected at the side surfaces of the hydraulic cylinder mounting bases 143, and support wheels 146 mounted at the ends of the spring plates 145 and matched with the mounting racks 148.

[0025] The ratchet wheel 142 is driven to rotate by the extension and retraction of the two symmetrically arranged hydraulic cylinders 144, and the fixed column 149 on the mounting rack 148 is tightly matched with the ratchet wheel 142 by the spring plate 145 and the support wheel 146, so that the ash tray 13 cannot be reversed.

[0026] The upper portion of the outer side surface of the gasification furnace main body 19 is connected with the explosion-proof water seal 17 through a pipeline.

[0027] The thermocouple 6 is arranged at the middle position of the outer side surface of the gasification furnace main body 19.

[0028] Working principle: Biomass raw materials (particles, wood chips, fruit shells, etc.) are poured into the first material falling port 1 and fall into the wind shelter 2 along the first material falling port 1, the wind shelter 2 conveys the biomass raw materials to the auger 4 by rotating, which ensures that the biomass raw materials are fed into the gasification furnace while preventing external air from entering the gasification furnace, then the driving motor 22 and the speed reducer 3 drive the auger 4 to run, the biomass raw materials are sent into the gasification furnace main body 19 through the feeding hopper 20 by the auger 4, the position and height of the raw materials are measured by the level meter 18 to realize high-low alarm output and assist the raw material level control, the explosion-proof water seal 17 is used to prevent explosion and relieve pressure, and the thermocouple 6 is used to measure the temperature in the gasification furnace main body 19 to observe the change of the temperature in the furnace and take timely measures in case of accidents.

[0029] The furnace body of the new type of wet type slagging gasification furnace with air distribution includes two parts: a gasification furnace body 19 and a grate 10, the grate 10 does not have air vents and is not a traditional grate 10, the upper part of the grate 10 is not easy to coke, and the grate 10 does not need to be stopped for coke cleaning, which is conducive to the continuous operation of the gasification furnace body 19, the grate 10 is installed on the grate base in the middle of the upper surface of the ash pan 13 and is used for supporting the material and the carbon residue, and at the same time, the grate 10 is driven to rotate by cooperating with the ash pan rotating device 14, so as to ensure the continuous operation of the gasification furnace body 19 and discharge the carbon residue.

[0030] The furnace body of the gasification furnace body 19 has a circulating water jacket 21, circulating water is introduced during operation, which effectively reduces the temperature of the gasification furnace body 19 on one side of the furnace, and the gasification furnace body 19 is provided with air vents 8, air is blown to the air pipe 15 along the air chamber 9 by the fan 16, the air distribution is relatively uniform, and the problem of uneven burning and affecting gasification is avoided, the air pipe 15 is cooled by the circulating water jacket 21, the temperature of the air outlet of the air pipe 15 is low, and the air pipe 15 is not easy to coke, the carbon residue is pushed to the second material inlet 11 by the ash pan rotating device 14, a certain water level is maintained in the ash pan 13, the bottom of the gasification furnace body 19 is sealed, air is prevented from entering to cause the carbon to self-ignite, safety is ensured, the gas outlet 5 of the gasification furnace body 19 is arranged at the top to form an upper gas outlet structure, pyrolysis gas generated by the gasification furnace body 19 is introduced to the low-heat-value burner for combustion through an external gas induced draft fan, and the heat energy released after combustion is utilized.

[0031] The carbon residue of the gasification furnace body 19 is driven to rotate by the ash pan rotating device 14, and the ash pan 13 is discharged along the second material inlet 11 in cooperation with the fixed blocking plate 12.

[0032] Each air vent 8 includes two inner air vents and outer air vents, the inner air vents are arranged on the inner side of the gasification furnace body 19, the outer air vents are arranged on the outer side of the gasification furnace body 19, and the air pipe 15 is connected between the inner air vents and the outer air vents, so that the circulating water jacket 21 is prevented from being communicated with the air vents 8.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A new type of wet bottom gasifier with wind distribution in the shaft, comprising a gasifier body (19), characterized in that: The circulating water interlayer (21) is arranged on the side of the gasification furnace body (19), the middle position of the upper surface of the gasification furnace body (19) is provided with the feeding hopper (20), the upper portion of the side of the feeding hopper (20) is provided with the material level meter (18), the top of the feeding hopper (20) is connected with the auger (4), the end of the auger (4) is provided with the speed reducer (3), the end of the speed reducer (3) is connected with the driving motor (22), the feeding inlet of the upper portion of the auger (4) is provided with the first dropping opening (1), the side of the first dropping opening (1) is provided with the wind shelter (2), the lower portion of the gasification furnace body (19) is provided with the ash tray (13), the upper surface of the ash tray (13) is provided with the grate (10) arranged in the gasification furnace body (19), the edge position of the bottom of the side of the gasification furnace body (19) is connected with the material blocking plate (12), the lower portion of the side of the gasification furnace body (19) is provided with a plurality of air vents (8), the air vents (8) are connected with the air pipe (15), the outer side of the gasification furnace body (19) is provided with the air chamber (9) communicated with the air pipe (15), the outer side of the air chamber (9) is provided with the fan (16), and the bottom of the ash tray (13) is connected with the ash tray rotating device (14).

2. The novel dry quenching type of furnace shaft air distribution slagging gasifier as claimed in claim 1, wherein: The edge position of the upper surface of the gasification furnace body (19) is provided with the gas outlet (5).

3. The novel dry quenching gasifier with wind distribution in the shaft according to claim 1, characterized in that: The lower portion of the outer side of the gasification furnace body (19) is provided with a plurality of supporting legs (7).

4. The novel dry quenching gasifier with wind distribution in the shaft according to claim 3, characterized in that: The second dropping opening (11) is arranged between the two adjacent supporting legs (7) and cooperates with the material blocking plate (12), and the second dropping opening (11) is arranged on the outer side of the ash tray (13).

5. The novel dry quenching gasifier with wind distribution in the shaft according to claim 3, characterized in that: The ash tray rotating device (14) comprises the connecting column (147) connected to the bottom of the ash tray (13), the peripheral surface of the connecting column (147) is connected with the ratchet wheel (142), the bottom of the connecting column (147) is rotatably connected with the rotating support seat (141), the rotating support seat (141) is fixedly connected with two of the supporting legs (7), the edge position of the upper surface of the rotating support seat (141) is symmetrically provided with two hydraulic cylinder mounting seats (143), the hydraulic cylinder mounting seats (143) are horizontally provided with the hydraulic cylinders (144), the movable end of the hydraulic cylinder (144) is connected with the mounting frame (148), the end of the mounting frame (148) is connected with the fixed column (149) cooperated with the ratchet wheel (142), the side of the hydraulic cylinder mounting seat (143) is connected with the spring plate (145), and the end of the spring plate (145) is provided with the supporting wheel (146) cooperated with the mounting frame (148).

6. The novel furnace shaft air distribution wet type slagging gasifier according to claim 1, characterized in that: The outer side of the gasification furnace body (19) is connected with the explosion-proof water seal (17) through the pipeline.

7. The novel furnace shaft air distribution wet type slagging gasifier according to claim 1, characterized in that: The middle position of the outer side of the gasification furnace body (19) is provided with the thermocouple (6).