CN210485741U - Large-scale domestic waste pyrolysis gasifier - Google Patents

Large-scale domestic waste pyrolysis gasifier Download PDF

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CN210485741U
CN210485741U CN201921270219.8U CN201921270219U CN210485741U CN 210485741 U CN210485741 U CN 210485741U CN 201921270219 U CN201921270219 U CN 201921270219U CN 210485741 U CN210485741 U CN 210485741U
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air
furnace body
slag
disc
air supply
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徐庆惠
续志军
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Dalian Huichuan Environmental Protection Technology Co ltd
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Dalian Huichuan Environmental Protection Technology Co ltd
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Abstract

A large household garbage pyrolysis gasification furnace belongs to the technical field of household garbage resource utilization. The gasification furnace comprises an upper section furnace body and a lower section furnace body which are convenient to manufacture and transport, a bilateral feeding port, an ignition port, a barrier clearing port and an air cooling jacket, wherein materials enter the furnace through the bilateral feeding port, an air supply fan introduces air into an air inlet pipe at the left side supporting leg of the furnace body, the air is led out along the right side supporting leg of the furnace body through the air cooling jacket and enters an air supply main pipeline, wherein, a part of air enters the rotary air disk through the air dividing port and is supplied with air through the main air supply port, the rest of air is supplied with air through the auxiliary air supply port from the air supply pipeline to the fixed air disk, an open fire grate is arranged in the furnace body and supports fuel to be gasified and slag after gasification, a slag loosening device and a slag position balancing arm are arranged on the rotary air disk, slag scraping plates are evenly distributed on the periphery, when the slag level in the furnace rises, the rotary air disc is rotated, the slag scraping plate scrapes slag materials to remove slag through the slag extractor, the slag level can be balanced through the slag level balance arm, and foreign matter slag blocks can be timely discharged through the obstacle clearing port in the lower part of the furnace body when the inside of the furnace body appears.

Description

Large-scale domestic waste pyrolysis gasifier
Technical Field
The utility model relates to a large-scale domestic waste pyrolysis gasifier belongs to domestic waste utilization's technical field.
Background
With the continuous development of social economy, the expansion of population scale and urbanization, the production amount of urban domestic garbage is continuously increased, the pollution of the domestic garbage to the environment is becoming serious day by day, and the serious public hazard of the domestic garbage is a major and troublesome problem faced by the world today.
At present, three main methods for garbage disposal are available: landfill treatment, incineration treatment and composting treatment. The incineration method is a method of putting garbage in a high temperature furnace to fully oxidize combustible components therein, the generated heat is used for power generation and heating, although the simple incineration method can realize garbage treatment at the fastest speed and does not occupy a large amount of land, the air is polluted by discharged gas after the garbage is incinerated, and the residue of the incinerated garbage still needs secondary landfill. The composting method has poor effect on reducing the garbage and has higher cost. The landfill method occupies a large amount of land resources and is easy to cause secondary pollution to water and soil.
Disclosure of Invention
In order to overcome the problems existing in the prior art, the utility model provides a large-scale domestic garbage pyrolysis gasification furnace, which has simple and reasonable structure, even feeding, sufficient air supply, high combustion efficiency and convenient slag discharge.
The utility model adopts the technical proposal that: a large-scale domestic waste pyrolysis gasification furnace comprises a furnace body, a feeding mechanism, an air supply mechanism, a fixed air disc, a rotary air disc and an air disc driving mechanism, wherein the furnace body adopts a combination structure of an upper section furnace body with an upper furnace body fireproof heat-insulating layer arranged on the inner side and a lower section furnace body with a lower furnace body fireproof heat-insulating layer arranged on the inner side and a furnace body bottom plate, the furnace body adopts four supporting legs for supporting, and the upper section furnace body and the lower section furnace body are connected by a flange; an air cooling jacket is arranged on the outer side of the lower furnace body fire-resistant heat-insulating layer of the lower furnace body, one side of the air cooling jacket is fixedly connected with the left landing leg air inlet pipe, and the other side of the air cooling jacket is fixedly connected with the right landing leg air outlet pipe; the feeding mechanism is connected with a feeding hole on the upper-section furnace body; the air supply mechanism comprises a rotary air disc, a fixed air disc, a main air supply pipe and an air blower, wherein the periphery of the rotary air disc is provided with a slag scraping plate; a funnel-shaped open grate is arranged on the inner wall of the lower section furnace body, the lower part of the funnel-shaped open grate is close to the upper conical surface of the rotary air plate, and a slag loosening device formed by connecting two upright posts with a slag position balance arm is fixedly connected on the upper conical surface of the rotary air plate; the wind disc driving mechanism comprises a large gear, a small gear and a motor, a base of the rotary wind disc is fixedly connected with the upper plane of the large gear, the large gear is located on the inner side of the bottom plate of the furnace body through a thrust bearing, and the motor drives the small gear meshed with the large gear through a transmission; the lower furnace body is also provided with an ignition port, a barrier clearing port and a slag extractor.
The two sets of feeding mechanisms are respectively connected with the two feeding holes on the upper-section furnace body
Two opposite ignition ports are arranged on the lower furnace body.
Two opposite obstacle clearing openings are formed in the lower furnace body.
And an auxiliary air supply port is arranged between the rotary air disc and the fixed air disc.
And main air supply ports which are uniformly distributed in the circumferential direction and supply air to the lower part of the open type fire grate are arranged on the periphery of the rotary air disc.
The utility model has the advantages that: the structure of the pyrolysis gasifier comprises an upper furnace body and a lower furnace body which are convenient to manufacture and transport, double-side feed inlets, double-side ignition ports, double-side barrier clearing ports, an air cooling jacket, a rotary air disc driving mechanism, a rotary air disc and a main air supply port, a fixed air disc and an auxiliary air supply port, a slag loosening device, an open type grate, a slag extractor, a left side support leg air inlet pipe and a right side support leg air outlet pipe, wherein materials enter the inside of the gasifier through the double-side feed inlets, an air supply fan introduces air into the left side support leg air inlet pipe of the furnace body, the air is guided out along the right side furnace body support legs through the air cooling jacket and absorbs heat, the air enters a furnace bottom air supply main pipeline, the main pipeline is provided with a branch air port, one part of the air enters the rotary air disc through the branch air port and is supplied with air through the main air supply port, the rest of the air is supplied with air through, the rotary air disc is provided with a slag loosening device and a slag level balance arm, when the slag level in the gasification furnace rises, the rotary air disc is rotated, slag is discharged through the slag discharging device, the slag level can be balanced through the slag level balance arm, and when foreign matter slag blocks appear in the furnace body, the foreign matter slag blocks can be timely discharged through a barrier removing opening in the lower part of the furnace body.
Drawings
FIG. 1 is a structural view of a large-sized pyrolysis gasifier for domestic garbage.
FIG. 2 is a structural view of a large-sized domestic garbage pyrolysis gasification furnace with a feeding mechanism.
In the figure: 1. the furnace comprises an upper furnace body, a 1a upper furnace body fireproof heat-insulating layer, a 2 lower furnace body, a 2a lower furnace body fireproof heat-insulating layer, a 2b air cooling jacket, a 2c air-ignition port, a 3 obstacle clearing port, a 4, a furnace body bottom plate, a 4a large gear, a 4b small gear, a 4c motor, a 5 rotating air disc, a 5a main air supply port, a 6 fixed air disc, a 6a auxiliary air supply port, a 7, a stand column, a 7a slag level balance arm, an 8 open type grate, a 9, a slag extractor, a 10, a feed inlet, a 11, a left side supporting leg air inlet pipe, a 12 right side supporting leg air outlet pipe, a 13, a main air supply pipe, a 14, a air dividing port, 15, a blower, a 16, a slag scraping plate, a 17, a flange, 18 and a.
Detailed Description
The present invention will be more clearly and completely described below by way of examples in conjunction with the accompanying drawings.
Fig. 1 and 2 show a structure diagram of a large household garbage pyrolysis gasification furnace. In the figure, the large household garbage pyrolysis gasifier comprises a furnace body, a feeding mechanism, an air supply mechanism, a fixed air disc, a rotary air disc and an air disc driving mechanism. The furnace body adopts the combination structure of an upper section furnace body 1 with an upper furnace body fire-resistant heat-insulating layer 1a arranged on the inner side, a lower section furnace body 2 with a lower furnace body fire-resistant heat-insulating layer 2a arranged on the inner side and a furnace body bottom plate 4, the furnace body adopts four supporting legs for supporting, and the upper section furnace body and the lower section furnace body are connected by a flange (17). An air cooling jacket 2b is arranged on the outer side of the lower furnace body fire-resistant heat-insulating layer 2a of the lower furnace body 2, one side of the air cooling jacket 2b is fixedly connected with the left landing leg air inlet pipe 11, and the other side is fixedly connected with the right landing leg air outlet pipe 12. The two sets of feeding mechanisms are respectively connected with the two feeding holes 10 on the upper-section furnace body 1. The air supply mechanism comprises a rotary air disk 5, a fixed air disk 6, a main air supply pipe 13 and an air blower 15, wherein the periphery of the rotary air disk 5 is provided with a slag scraping plate 16, the fixed air disk 6 is arranged at the top of the main air supply pipe 13, and the rotary air disk 5 is driven by an air disk driving mechanism to rotate around the main air supply pipe 13. An auxiliary air supply port 6a is arranged between the rotary air disk 5 and the fixed air disk 6. The periphery of the rotary air disk 5 is provided with main air supply ports 5a which are uniformly distributed in the circumferential direction and supply air to the lower part of the open fire grate 8. A main air supply pipe 13 positioned in the rotary air disc 5 is provided with a plurality of air distribution openings 14 for circumferential air outlet, an air blower 15 is connected with the left landing leg air inlet pipe 11, and the main air supply pipe 13 is connected with the right landing leg air outlet pipe 12. The inner wall of the lower furnace body 2 is provided with a funnel-shaped open fire grate 8, the lower part of the funnel-shaped open fire grate 8 is close to the upper conical surface of the rotary air plate 5, and the upper conical surface of the rotary air plate 5 is fixedly connected with a slag loosening device formed by connecting a slag position balance arm 7a with two upright posts 7. The wind disk driving mechanism comprises a large gear 4a, a small gear 4b and a motor 4c, the base of the rotary wind disk 5 is fixedly connected with the upper plane of the large gear 4a, the large gear 4a is located on the inner side of the furnace body bottom plate 4 through a thrust bearing (18), and the motor 4c drives the small gear 4b meshed with the large gear 4a through a transmission. Two ignition ports 2c, two obstacle clearing ports 3 and a slag extractor 9 are also arranged on the lower furnace body 2.
The main problems solved by adopting the technical scheme are as follows:
1. the problems of insufficient internal temperature of the gasification furnace and manufacturing and installation are solved.
The traditional gasifier furnace body is mostly whole water-tight seal cover structure, and the water jacket structure absorbs and consumes a large amount of interior temperature of stove and makes the peripheral temperature of gasifier reduce and influence gasification efficiency, installs behind the refractory insulation material additional in the stove and peripheral temperature rise and even greatly increased gasification efficiency, promotes the gasification back combustible gas calorific value, and the modularization hoist and mount of being convenient for of split type furnace body about from top to bottom solves the aspect problems such as equipment preparation, assembly, transportation simultaneously.
2. The problem of the gasifier feed is inhomogeneous is solved.
Most of traditional gasifiers are furnace body upper segment single-side feeding modes, materials in the feeding modes are stacked and offset in the furnace body, the offset materials are locally easy to burn through in the gasification process and difficult to adjust, the material stacking offset problem is fundamentally solved through the feeding modes of the two side feeding ports, and the working stability of the gasifiers is greatly improved.
3. Solves the problem of uneven culture of the oxide layer of the gasification furnace.
The gasifier needs the thermochemical process of accomplishing on the good oxide layer basis of cultivateing, needs the people to install organic matter such as timber additional and ignite the cultivation oxide layer before real gasification, and traditional gasifier mostly is the furnace body hypomere unilateral ignition mouth structure, and timber installs additional when cultivateing the oxide layer and lights the unilateral ignition mouth inhale the inequality naturally, and the oxide layer of cultivateing is inhomogeneous, influences gasification effect, and above-mentioned problem has been solved to two side ignition mouth structures, provides stable gasification basis.
4. The problem of slag discharge stability of the gasification furnace is solved.
The setting of two side clearance mouths of gasifier hypomere furnace body has solved winding nature slag charge discharge difficult problems such as super large foreign matter cinder, steel wire, produces the formula and can artificially open the clearance mouth and clear up when above-mentioned slag charge to guarantee the stable work of gasifier.
5. Solves the problems of overhigh temperature of the outer wall of the gasification furnace and waste heat recovery.
The outer wall of the furnace body of the traditional gasification furnace is too high in temperature after stable work, so that operators are easily injured, heat radiation is wasted, air enters the air cooling jacket through the left side air inlet supporting leg of the furnace body and is led out through the right side air outlet supporting leg, the heat of the air cooling jacket is absorbed in the process, the heated air is supplied to the gasification furnace, and the problems of too high temperature of the outer wall of the gasification furnace and waste heat recovery are solved through the structure of the air cooling jacket.
6. Solves the problems of even air supply and slag discharge of the air disk
The problem of gasifier air feed equipartition has been solved in the setting in rotatory wind dish main air feed mouth and the vice air feed mouth of fixed wind dish, forms relative motion when rotatory wind dish rotates between and the fixed wind dish, and the scum board realizes scraping the sediment function on the fixed wind dish, prevents that the gasification back lime-ash covers vice air feed mouth and influences gasification efficiency.
7. Solves the problem of hardening of ash slag
The slag loosening device formed by connecting two stand columns by the slag level balance arm is welded on the rotary air disc, the stand column size of the slag loosening device is 300mm higher than that of the slag level balance arm, when a slag layer in the furnace body is hardened in the operation process, the rotary air disc is opened to drive the slag loosening device to rotate, and the slag loosening device, the slag level balance arm and the slag layer on the air disc form relative motion to realize the balance of the slag loosening and the slag level.
8. Solves the problem of air permeability of the gasification furnace
The arrangement of the open fire grate separates the gasified material and the gasified slag from the rotary air disk, and the fire grate is uniformly provided with 20X 260 vent holes, so that the air supplied by the furnace bottom can not be in resistance contact with the gasified fuel.
9. Solves the problem of slag discharge
The slag extractor can discharge gasified slag materials out of the furnace in time, ensure that the main and auxiliary air supply ports are not covered by slag layers, and adjust the height of an oxidation layer in the furnace body to achieve the aim of controlling material level.

Claims (6)

1. The utility model provides a large-scale domestic waste pyrolysis gasifier, it includes furnace body, feed mechanism, air feed mechanism, fixed wind dish, rotatory wind dish and wind dish actuating mechanism, characterized by: the furnace body adopts a combination structure of an upper section furnace body (1) with an upper furnace body fire-resistant heat-insulating layer (1 a) arranged on the inner side, a lower section furnace body (2) with a lower furnace body fire-resistant heat-insulating layer (2 a) arranged on the inner side and a furnace body bottom plate (4), the furnace body is supported by four support legs, and the upper section furnace body (1) and the lower section furnace body (2) are connected by a flange (17); an air cooling jacket (2 b) is arranged on the outer side of a lower furnace body fire-resistant heat-insulating layer (2 a) of the lower furnace body (2), one side of the air cooling jacket (2 b) is fixedly connected with a left supporting leg air inlet pipe (11), and the other side of the air cooling jacket is fixedly connected with a right supporting leg air outlet pipe (12); the feeding mechanism is connected with a feeding hole (10) on the upper-section furnace body (1); the air supply mechanism comprises a rotary air disc (5) with a slag scraping plate (16) arranged on the periphery, a fixed air disc (6), a main air supply pipe (13) and an air blower (15), the fixed air disc (6) is arranged on the top of the main air supply pipe (13), the rotary air disc (5) is driven by an air disc driving mechanism to rotate around the main air supply pipe (13), a plurality of air distribution openings (14) for circumferential air outlet are formed in the main air supply pipe (13) positioned in the rotary air disc (5), the air blower (15) is connected with a left-side supporting leg air inlet pipe (11), and the main air supply pipe (13) is connected with a right-side supporting leg air outlet pipe (12); a funnel-shaped open fire grate (8) is arranged on the inner wall of the lower furnace body (2), the lower part of the funnel-shaped open fire grate (8) is close to the upper conical surface of the rotary air disc (5), and a slag loosening device formed by connecting a slag position balance arm (7 a) with two upright posts (7) is fixedly connected on the upper conical surface of the rotary air disc (5); the air disc driving mechanism comprises a large gear (4 a), a small gear (4 b) and a motor (4 c), the base of the rotary air disc (5) is fixedly connected with the upper plane of the large gear (4 a), the large gear (4 a) is located on the inner side of the furnace body bottom plate (4) through a thrust bearing (18), and the motor (4 c) drives the small gear (4 b) meshed with the large gear (4 a) through a transmission; the lower furnace body (2) is also provided with an ignition port (2 c), a barrier clearing port (3) and a slag extractor (9).
2. The large-sized domestic garbage pyrolysis gasification furnace according to claim 1, wherein: the two sets of feeding mechanisms are respectively connected with the two feeding holes (10) on the upper-section furnace body (1).
3. The large-sized domestic garbage pyrolysis gasification furnace according to claim 1, wherein: two opposite ignition ports (2 c) are arranged on the lower furnace body (2).
4. The large-sized domestic garbage pyrolysis gasification furnace according to claim 1, wherein: two opposite obstacle clearing openings (3) are arranged on the lower furnace body (2).
5. The large-sized domestic garbage pyrolysis gasification furnace according to claim 1, wherein: an auxiliary air supply opening (6 a) is arranged between the rotary air disc (5) and the fixed air disc (6).
6. The large-sized domestic garbage pyrolysis gasification furnace according to claim 1, wherein: and main air supply ports (5 a) which are uniformly distributed in the circumferential direction and supply air to the lower part of the open fire grate (8) are arranged on the periphery of the rotary air disc (5).
CN201921270219.8U 2019-08-07 2019-08-07 Large-scale domestic waste pyrolysis gasifier Active CN210485741U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345487A (en) * 2019-08-07 2019-10-18 大连惠川环保科技有限公司 A kind of large size domestic garbage pyrolysis gasification oven

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110345487A (en) * 2019-08-07 2019-10-18 大连惠川环保科技有限公司 A kind of large size domestic garbage pyrolysis gasification oven

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