CN211781099U - Water-cooling spiral feeding device and plasma gasification furnace thereof - Google Patents
Water-cooling spiral feeding device and plasma gasification furnace thereof Download PDFInfo
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- CN211781099U CN211781099U CN201921733184.7U CN201921733184U CN211781099U CN 211781099 U CN211781099 U CN 211781099U CN 201921733184 U CN201921733184 U CN 201921733184U CN 211781099 U CN211781099 U CN 211781099U
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Abstract
The utility model discloses a water-cooling spiral feeding device and a plasma gasification furnace thereof, wherein the improved feeding device comprises a storage bin, a feeder, a feeding channel and a spiral pushing device for pushing materials; the feeder is arranged between the stock bin and the feeding channel; the spiral pushing device is arranged in the feeding channel, a first spiral blade is arranged on the surface of the spiral pushing device, the spiral pushing device can rotate along the axial direction of the spiral pushing device, and a water inlet channel and a water outlet channel for cooling water circulation are arranged in the spiral pushing device. Through the utility model discloses a spiral feeding device, through rotatory helical blade with the feed inlet department of material propelling movement to gasifier, can realize the ration adjustable and controllable feeding of a material or multiple material, can not take place inlet pipe blocking phenomenon, the feeding process is smooth, and simple structure is compact.
Description
Technical Field
The utility model belongs to the technical field of the useless incineration disposal of danger, concretely relates to water-cooling spiral feed arrangement and plasma gasification stove thereof.
Background
At present, the annual generation amount of dangerous wastes in China exceeds 6000 million tons, and the method for treating the dangerous wastes is the method for treating the dangerous wastes which has the advantages of most obvious decrement effect, most thorough harmlessness and effective utilization of incineration heat, thereby being widely applied.
Ash slag is the abbreviation of fly ash and bottom slag, wherein the fly ash is tiny particles discharged along with flue gas in the incineration process of garbage or hazardous waste, contains substances such as heavy metal, dioxin and the like, and belongs to hazardous waste; the bottom slag is a burnout material generated in the incineration process of garbage or dangerous waste, contains heavy metals and belongs to the dangerous waste. Therefore, ash and slag generated by burning the hazardous waste are still hazardous waste, and the current treatment mode is mainly to enter a hazardous waste landfill site for treatment, and the treatment mode has high landfill cost, occupies a large amount of land and does not fundamentally solve the problem. The plasma melting gasification treatment technology of the solid waste utilizes the advantages of high temperature, high energy density and low oxidation atmosphere of a plasma torch, can generate high temperature of 1600 ℃ in a gasification furnace, at the temperature, organic substances (containing toxic, corrosive and infectious substances) in the solid waste are completely cracked and gasified into combustible synthetic gas (the main components are CO and H2), and inorganic substances (containing mineral substances and heavy metal substances) are melted into glassy substances at high temperature and are recycled.
For the feeding device of the plasma gasification melting furnace at present, the conventional method is to mix the fly ash and the bottom slag first and then add the mixture into a hopper, or add the mixture into a hopper simultaneously. Although this method is simple and convenient, the amount of the mixed material is large, and it is difficult to precisely control the feeding rate. And the feeding ratio between the fly ash and the bottom slag cannot be adjusted, and once the materials are mixed, the feeding ratio cannot be changed, so that the operation of the plasma melting furnace is inconvenient. In addition, the temperature in the plasma gasification melting furnace is 1100-1600 ℃, the temperature of the feeding hole is 1100-1300 ℃, and the key for ensuring that the dangerous waste is continuously, stably and reliably fed into the plasma gasification melting furnace is the operation of the system.
Disclosure of Invention
In order to solve the problem, the utility model provides a water-cooling spiral feed arrangement and plasma gasification stove thereof solves current plasma gasification stove and receives the problem that the high temperature damaged and cause the material pipe to block up when the feeding because of feed arrangement.
In order to solve the technical problem, the utility model discloses a following technical scheme realizes:
a water-cooling spiral feeding device comprises a storage bin, a feeder, a feeding channel and a spiral pushing device for pushing materials; the feeder is arranged between the bin and the feeding channel; the spiral material pushing device is arranged in the feeding channel, a first spiral blade is arranged on the surface of the spiral material pushing device, the spiral material pushing device can rotate along the axial direction of the spiral material pushing device, and a water inlet channel and a water outlet channel for cooling water circulation are arranged in the spiral material pushing device.
Specifically, the spiral pushing device comprises an outer shaft, an inner shaft and a central shaft, wherein the outer shaft, the inner shaft and the central shaft are all hollow structures; the outer wall of the outer shaft is provided with the first helical blade; the inner shaft is sleeved in the outer shaft, the central shaft is arranged in the inner shaft, and the outer shaft can rotate relative to the inner shaft; a second helical blade is arranged on the outer wall of the central shaft, a gap for cooling water to flow is arranged between the top of the second helical blade and the inner wall of the inner shaft, the inner space of the central shaft forms the water inlet channel, and the space between the inner shaft and the central shaft forms the water outlet channel; the water inlet channel is provided with a first water inlet, the water outlet channel is provided with a first water outlet, and the first water inlet and the first water outlet are both arranged outside the feeding channel.
Furthermore, the spiral pushing device further comprises a motor and a speed regulating mechanism, the motor and the speed regulating mechanism are fixed outside the feeding channel, and the speed regulating mechanism is connected with the outer shaft.
Furthermore, a water-cooled wall is arranged on the outer wall of the feeding channel, and a second water inlet and a second water outlet are formed in the water-cooled wall.
Specifically, the feeder is a sealed variable frequency feeder.
Furthermore, a steam inlet for inputting steam is formed in the feeding channel.
Furthermore, the tail end of the feeding channel is butted with an annular castable layer, and the inner diameter of the annular castable layer is the same as that of the feeding channel.
The utility model also discloses a plasma gasification stove, including gasifier furnace body and feed arrangement, the gasifier furnace body on be provided with the feed inlet, feed arrangement set up in feed inlet department, feed arrangement do water-cooling push rod feed arrangement.
Compared with the prior art, the beneficial effects of the utility model are that:
through the utility model discloses a spiral feeding device, through rotatory helical blade with the feed inlet department of material propelling movement to gasifier, can realize the ration adjustable and controllable feeding of a material or multiple material, can not take place inlet pipe blocking phenomenon, the feeding process is smooth, and simple structure is compact.
The utility model discloses a be provided with the water-cooling passageway among the water-cooling spiral feed arrangement, the cooling water through the circulation cools off the helical blade of outside and material contact, avoids producing the overtemperature deformation.
The utility model discloses set up steam inlet on the pay-off passageway wall for to inside input steam, be used for preventing that the synthetic gas from suck-back is anti scurries overtemperature.
The utility model discloses a pushing equipment end adopts the pouring bed of material, and anticorrosive wear-resisting high temperature resistant avoids the high temperature corrosion pay-off passageway of feed inlet.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
Fig. 1 is a schematic structural view of a plasma gasification furnace with the water-cooling spiral feeding device of the present invention.
Fig. 2 is a sectional view of the water-cooled screw pushing device of the present invention.
Fig. 3 is a schematic view of the plasma gasification furnace of the present invention.
The reference numerals in the figures denote:
1-a storage bin, 2-a feeder, 3-a feeding channel, 4-a spiral pushing device, 5-a water-cooled wall, 6-an annular casting material layer and 7-a gasification furnace body;
301-a steam inlet;
401-outer shaft, 402-inner shaft, 403-central shaft, 404-first helical blade, 405-second helical blade, 406-gap, 407-water inlet channel, 408-water outlet channel, 409-first water inlet, 410-first water outlet, 411-motor, 412-speed regulating mechanism;
501-a second water inlet, 502-a second water outlet;
701-feed inlet.
The following detailed description of the present invention is provided in connection with the accompanying drawings and the detailed description of the invention.
Detailed Description
The following embodiments of the present invention are given, and it should be noted that the present invention is not limited to the following embodiments, and all the equivalent transformations made on the basis of the technical solution of the present application all fall into the protection scope of the present invention.
In the present invention, unless otherwise specified, the use of directional terms such as "upper, lower, bottom, top" and "lower" are generally defined with reference to the drawing plane of the corresponding drawing, and "inner and outer" are defined with reference to the outline of the corresponding drawing.
As shown in fig. 1, an embodiment of the present invention discloses a water-cooling spiral feeding device, which includes a storage bin 1, a feeder 2, a feeding channel 3, and a spiral pushing device 4 for pushing material. Wherein, the chamber wall of the storage bin 1 is a water-cooled wall or a lining refractory material. The feeding channel 3 is arranged along the horizontal direction, the stock bin 1 is vertically fixed above the feeding channel 3, and the feeder 2 is arranged at the bottom of the stock bin 1 and used for conveying materials to the feeding channel 3 at the bottom. The feeder 2 in this embodiment is a sealed variable frequency feeder to ensure that the feeding is not air-leakage and is commercially available.
The spiral pushing device 4 is arranged in the feeding channel 3, the spiral pushing device 4 can rotate along the axial direction of the spiral pushing device, the surface of the spiral pushing device 4 is provided with a first spiral blade 404, and the inside of the spiral pushing device is provided with a water inlet channel 407 and a water outlet channel 408 for cooling water circulation. As shown in fig. 2 and 3, the spiral pushing device 4 includes an outer shaft 401, an inner shaft 402 and a central shaft 403, and the outer shaft 401, the inner shaft 402 and the central shaft 403 are all hollow structures; a first helical blade 404 is arranged on the outer wall of the outer shaft 401; an inner shaft 402 is sleeved in an outer shaft 401, a central shaft 403 is arranged in the inner shaft 402, the inner shaft 402 and the outer shaft 401 are coaxially sleeved, the outer diameter of the inner shaft 402 is matched with the inner diameter of the outer shaft 401, the central shaft 403 is inserted into the outer shaft 401, a first spiral blade 404 extends to a feed port of a gasification furnace, and materials are driven to move to the feed port 701 through rotation of the first spiral blade 404. The outer shaft 401 can rotate relative to the inner shaft 402, the inner shaft 402 and the central shaft 403 are fixed, and the outer shaft 401 rotates through a power system. The outer wall of the central shaft 403 is provided with a second helical blade 405, a gap 406 for cooling water to flow is arranged between the top of the second helical blade 405 and the inner wall of the inner shaft 402, and the second helical blade 405 is arranged to increase the disturbance of water cooling, enhance heat transfer, take away the heat of the helical shaft, and ensure that the temperature of the helical shaft is at a lower level. The inner space of the central shaft 403 forms a water inlet passage 407, and the space between the inner shaft 402 and the central shaft 403 forms a water outlet passage 408; the water inlet channel 407 is provided with a first water inlet 409, the water outlet channel 408 is provided with a first water outlet 410, and the first water inlet 409 and the first water outlet 410 are both arranged outside the feeding channel 3.
And a speed regulating mechanism 412 and a motor 411 are connected on the outer shaft, the speed regulating mechanism 412 is connected with the outer shaft 401, the motor 411 drives the speed regulating mechanism 412 and the speed regulating mechanism 412 to be fixed outside the feeding channel 3, one end of the feeding channel 3 is closed, and the motor 411 and the speed regulating mechanism 412 are arranged outside the closed end.
As a preferred embodiment of the present invention, as shown in fig. 1, a steam inlet 301 for inputting steam is provided on the feeding passage 3. The system is used for inputting steam into the inside and preventing the synthesis gas from back suction and back blow-by and overtemperature.
As the preferred embodiment of the present invention, as shown in fig. 1, a water wall 5 is provided on the outer wall of the feeding channel 3, and a second water inlet 501 and a second water outlet 502 are provided on the water wall 5 for letting in cooling water to cool the feeding channel 3.
As a preferred embodiment of the present invention, as shown in fig. 1, the end of the feeding channel 3 is butted with an annular castable layer 6, and the inner diameter of the annular castable layer 6 is the same as the inner diameter of the feeding channel 3. The feeding device is corrosion-resistant, wear-resistant and high-temperature-resistant, and a high-temperature corrosion feeding channel of the feeding hole is avoided. Generally, the annular castable layer 6 is poured at the feed port 701 of the gasifier body 7, and the annular castable layer 6 is butted with the feed channel 3 through a flange. The steam inlet 301 is arranged on the annular castable layer 6, and the steam ejection port faces the direction of the feed port 701.
An embodiment of the utility model discloses a plasma gasification stove, including gasification stove furnace 7 and feed arrangement, gasification stove furnace 7 on be provided with feed inlet 701, feed arrangement sets up in feed inlet 701 department, feed arrangement does water-cooling spiral feed arrangement.
As shown in fig. 1, an embodiment of the present invention further discloses a plasma gasification furnace, the gasification furnace includes a gasification furnace body 7 and a feeding device, the gasification furnace body 7 in this embodiment is a currently common gasification furnace body. The gasification furnace body 7 is provided with a feed port 701, and the water-cooling push rod feeding device described in the above embodiment is provided at the feed port 701.
In the above description, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be understood broadly, and may be, for example, fixedly connected or detachably connected or integrated; either a direct connection or an indirect connection, and the like. The specific meaning of the above terms in the present technical solution can be understood by those of ordinary skill in the art according to specific situations.
The various features described in the foregoing detailed description can be combined in any suitable manner without departing from the spirit of the invention, and should also be construed as disclosed in the invention.
Claims (8)
1. A water-cooling spiral feeding device is characterized by comprising a stock bin (1), a feeder (2), a feeding channel (3) and a spiral pushing device (4) for pushing materials; the feeder (2) is arranged between the bin (1) and the feeding channel (3);
the spiral pushing device (4) is arranged in the feeding channel (3), a first spiral blade (404) is arranged on the surface of the spiral pushing device (4), the spiral pushing device (4) can rotate along the axial direction of the spiral pushing device, and a water inlet channel (407) and a water outlet channel (408) for cooling water circulation are arranged in the spiral pushing device (4).
2. The water-cooling spiral feeding device as claimed in claim 1, wherein the spiral pushing device (4) comprises an outer shaft (401), an inner shaft (402) and a central shaft (403), and the outer shaft (401), the inner shaft (402) and the central shaft (403) are all hollow structures;
the outer wall of the outer shaft (401) is provided with the first helical blade (404); the inner shaft (402) is sleeved in the outer shaft (401), the central shaft (403) is arranged in the inner shaft (402), and the outer shaft (401) can rotate relative to the inner shaft (402);
a second helical blade (405) is arranged on the outer wall of the central shaft (403), and a gap (406) for cooling water to flow is arranged between the top of the second helical blade (405) and the inner wall of the inner shaft (402);
the inner space of the central shaft (403) forms the water inlet channel (407), and the space between the inner shaft (402) and the central shaft (403) forms the water outlet channel (408); a first water inlet (409) is arranged on the water inlet channel (407), a first water outlet (410) is arranged on the water outlet channel (408), and the first water inlet (409) and the first water outlet (410) are both arranged outside the feeding channel (3).
3. A water-cooled screw feeder according to claim 2, characterized in that the screw pushing device (4) further comprises a motor (411) and a speed regulating mechanism (412), the motor (411) and the speed regulating mechanism (412) are fixed outside the feeding channel (3), and the speed regulating mechanism (412) is connected with the outer shaft (401).
4. A water-cooled screw feeder according to claim 1, characterized in that the outer wall of the feed channel (3) is provided with a water-cooled wall (5), and the water-cooled wall (5) is provided with a second water inlet (501) and a second water outlet (502).
5. A water-cooled screw feeder according to claim 1, characterised in that the feeder (2) is a sealed variable frequency feeder.
6. The water-cooling spiral feeding device as claimed in claim 1, wherein the feeding channel (3) is provided with a steam inlet (301) for inputting steam.
7. A water-cooled screw feeder according to claim 1, characterized in that the end of the feed channel (3) is butted with an annular castable layer (6), and the inner diameter of the annular castable layer (6) is the same as the inner diameter of the feed channel (3).
8. A plasma gasification furnace comprises a gasification furnace body (7) and a feeding device, wherein a feeding hole (701) is formed in the gasification furnace body (7), and the feeding device is arranged at the feeding hole (701), and the plasma gasification furnace is characterized in that the feeding device is the water-cooling spiral feeding device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733184.7U CN211781099U (en) | 2019-10-16 | 2019-10-16 | Water-cooling spiral feeding device and plasma gasification furnace thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921733184.7U CN211781099U (en) | 2019-10-16 | 2019-10-16 | Water-cooling spiral feeding device and plasma gasification furnace thereof |
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| Publication Number | Publication Date |
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| CN211781099U true CN211781099U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921733184.7U Active CN211781099U (en) | 2019-10-16 | 2019-10-16 | Water-cooling spiral feeding device and plasma gasification furnace thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852496A (en) * | 2020-12-29 | 2021-05-28 | 哈尔滨锅炉厂有限责任公司 | Double-bin sealing positive pressure feeding system for biomass gasification furnace and using method thereof |
-
2019
- 2019-10-16 CN CN201921733184.7U patent/CN211781099U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112852496A (en) * | 2020-12-29 | 2021-05-28 | 哈尔滨锅炉厂有限责任公司 | Double-bin sealing positive pressure feeding system for biomass gasification furnace and using method thereof |
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