CN212273993U - Domestic waste handles pyrolysis gasifier dross removal mechanism - Google Patents

Abstract

The utility model belongs to domestic waste pyrolysis treatment equipment provides a domestic waste handles pyrolysis gasifier dross removal mechanism, and it includes the grate system, and the grate system includes first grate, and first grate includes this somatic part, installation department and supporting part, and the supporting part rotationally sets up in the bottom of furnace body, still includes: the first ash tray is fixedly arranged at the bottom of the furnace body, and the bottom of the first ash tray is provided with a slag leaking hole which is adaptive to the mounting part; the second ash tray is fixedly arranged at the bottom of the furnace body, is positioned at the outer side of the first ash tray, and is provided with a second slag outlet at the bottom; the ash scraping plate is fixedly connected with the mounting part; the outside of installation department is provided with a plurality of spiral slag ejectors along circumference, and it has a plurality of first slag notch to open on the installation department, encloses into the ash chute between first ash tray and the installation department, and the slag ejector is located the ash chute. The utility model has the advantages of stable pyrolysis and gasification, high gasification efficiency, sufficient material combustion, controllable slag discharge of the furnace, lower investment cost and the like.

Description

Domestic waste handles pyrolysis gasifier dross removal mechanism

Technical Field

The utility model relates to a domestic waste pyrolysis treatment facility technical field, concretely relates to domestic waste handles pyrolysis gasifier dross removal mechanism.

Background

With the continuous high-speed increase of the economy of China and the rapid development of the modernized construction of villages and towns, together with the insufficient attention degree on environmental protection, the method brings about the rapid increase of the yields of domestic garbage and solid waste of villages and towns and a series of energy environmental problems thereof. The management of domestic garbage faces a serious challenge, and particularly, the technology and equipment for effectively treating the garbage, which have relatively low investment cost and running cost, are absent in rural areas in China, the garbage treatment is difficult, and the treatment mode is lagged. The traditional mode for managing domestic garbage is no longer suitable for the requirement of modern development, but is converted into a garbage management mode with cyclic utilization of resources and sustainable development.

Therefore, the small-sized pyrolysis gasifier for treating solid waste garbage in China is developed rapidly, but the existing pyrolysis gasifier has the following problems in a deslagging device:

1. the existing deslagging devices are designed into single-layer grates, and refer to the grates of coal pyrolysis gasification furnaces. The coal has single component and complex garbage component, which causes uneven distribution of gasification agent, low gasification efficiency of gasification layer and poor combustion effect of combustion section.

2. The slag removal device has the advantages that slag removal is uncontrollable, the combustion effect of the pyrolysis gasification furnace is not favorably improved, the stable operation of the pyrolysis gasification furnace is not favorably realized, and the investment cost is not favorably reduced.

SUMMERY OF THE UTILITY MODEL

To the defects in the prior art, the utility model aims to provide a domestic waste handles pyrolysis gasifier dross removal mechanism to solve above-mentioned technical problem.

In order to realize the above-mentioned purpose, the utility model provides a domestic waste handles pyrolysis gasifier dross removal mechanism, it sets up in the furnace body lower part of pyrolysis gasifier, and it includes grate system, gasification agent air intake system and grate actuating system, the grate system includes first grate, first grate including be pagoda-shaped somatic part, with the lower part of somatic part border fixed connection be the installation department of cylinder and with the bottom center department fixed connection's of somatic part supporting part, the supporting part rotationally sets up the bottom of furnace body, gasification agent air intake system is including setting up the first air chamber of the bottom of first grate still includes:

the first ash tray is fixedly arranged at the bottom of the furnace body, and the bottom of the first ash tray is provided with a slag leaking hole which is adaptive to the mounting part;

the second ash tray is fixedly arranged at the bottom of the furnace body, is positioned at the outer side of the first ash tray, and is provided with a second slag outlet at the bottom; and

the ash scraping plate is fixedly connected with the mounting part and is used for scraping ash on the second ash tray into the second slag outlet in the process of rotating along with the mounting part;

the outside of installation department is provided with a plurality of spiral slag ejectors that are along circumference, open on the installation department have a plurality ofly with the corresponding first slag notch of slag ejector, first ash tray with enclose into the ash chute between the installation department, the slag ejector is located in the ash chute.

Further, the grate drive system comprises:

the driven gear is sleeved on the mounting part, is positioned below the bottom of the first ash tray and above the bottom of the second ash tray, and is fixedly provided with the ash scraping plate at the bottom;

the driving gear penetrates through the second ash tray and is meshed with the driven gear;

the box body is fixedly arranged on the outer wall of the second ash tray and used for mounting the driving gear; and

and the motor is fixedly arranged outside the box body and is used for driving the driving gear to rotate.

Further, the first slag outlet is close to the inner side of the slag discharger.

Furthermore, the grate system also comprises a second grate fixedly arranged at the top of the first grate, the gasifying agent air inlet system also comprises an air supply pipe and a second air chamber, the air supply pipe sequentially penetrates through the first air chamber and the first grate from bottom to top, the second air chamber is arranged at the bottom of the air supply pipe, the air supply pipe is hermetically connected with the first air chamber, and the top of the air supply pipe is fixedly connected with the second grate.

Further, the outside of installation department still is provided with a plurality of kickoff along circumference, the kickoff is located the ash chute is interior, the kickoff sets up adjacently between the slag extractor.

The utility model has the advantages that:

1. the grate is designed into a double-layer grate, and an air supply system for gasification and the staged treatment of carbon residue combustion is respectively and independently arranged on the two layers of grates, and the steam is delivered to a gasification layer of the pyrolysis gasifier through a second air chamber, an air supply pipe and a second layer of grate by reasonably distributing primary air and steam, so that the H2/CO of fuel gas can be effectively improved, the gas production efficiency of the furnace is improved, the steam can also play a role in preventing the temperature of a bed layer from rising beyond the limit, slag bonding is reduced, and a tuyere is protected.

2. Through controlling the positive and negative rotation of the grate, the uniform stirring and the independent control of the slag discharging frequency in the garbage heat energy conversion process in the furnace are realized, the combustion effect of the pyrolysis gasification furnace is favorably improved, the stable operation of the pyrolysis gasification furnace is favorably realized, and the investment cost is favorably reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural view of a slag removal device of a pyrolysis gasification furnace for treating household garbage according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along plane A-A of FIG. 1;

FIG. 3 is a schematic perspective view of a portion of the deslagging apparatus from a single perspective;

fig. 4 is a partial perspective view of the deslagging device from another view angle.

Reference numerals:

10-furnace body, 11-hearth, 31-first grate, 311-grate body, 312-supporting part, 313-mounting part, 314-slag discharger, 315-slag extractor, 316-first slag outlet, 32-first air chamber, 33-second grate, 34-blast pipe, 35-second air chamber, 36-second ash tray, 361-second slag outlet, 362-slag discharge pipe, 37-first ash tray, 371-ash discharge groove, 372-ash leakage hole, 38-ash scraping plate, 39-grate driving system, 391-driven gear, 392-driving gear, 393-box body, 394-motor and 40-ash storage box.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1 to 4, the present embodiment provides a slag removal device for a household garbage disposal pyrolysis gasifier, which is disposed at a lower portion of a furnace body 10 of the pyrolysis gasifier and comprises a fire grate system, a gasifying agent inlet system, a fire grate driving system 39, a first ash tray 37, a second ash tray 36 and an ash scraping plate 38.

The pyrolysis gasifier comprises a furnace body 10, and a hearth 11 is arranged inside the furnace body 10.

The fire grate system comprises a first fire grate 31, the first fire grate 31 comprises a pagoda-shaped body part 311, a cylindrical mounting part 313 fixedly connected with the lower edge of the body part 311 and a supporting part 312 fixedly connected with the center of the bottom of the body part 311, a channel for the circulation of a gasification agent is arranged in the supporting part 312, the supporting part 312 is rotatably arranged at the bottom of the furnace body 10, and the supporting part 312 is driven by a fire grate driving system 39 arranged at the lower part of the furnace body 10, so that the whole first fire grate 31 rotates at the lower part of the furnace body 10.

The gasification agent gas inlet system comprises a first gas chamber 32 arranged at the bottom of the first grate 31, and the first gas chamber 32 is communicated with the inside of the first grate 31.

The first ash tray 37 is fixedly arranged at the bottom of the furnace body 10, specifically, the outer wall of the first ash tray 37 is fixedly connected with the inner wall of the second ash tray 36 through a reinforcing rib plate, and the bottom of the first ash tray 37 is provided with a slag leaking hole adapted to the mounting part 313, namely, the diameter of the slag leaking hole is equal to or approximately equal to that of the mounting part 313, so that an ash discharging groove 371 is defined between the first ash tray 37 and the mounting part 313. A plurality of spiral slag dischargers 314 are fixedly provided in the outer circumferential direction of the mounting portion 313, a plurality of first slag outlets 316 corresponding to the slag dischargers 314 are provided in the mounting portion 313, and the slag dischargers 314 are located in the ash discharge groove 371.

The second ash tray 36 is fixedly arranged at the bottom of the furnace body 10, specifically, the upper part of the second ash tray 36 is connected with the outer wall of the furnace body 10, the second ash tray 36 is positioned at the outer side of the first ash tray 37, the bottom of the second ash tray is provided with at least one second slag outlet 361, and the number of the second slag outlets 361 is at least one. A slag outlet pipe 362 is installed at the second slag outlet 361, and an ash storage box 40 is placed under the slag outlet pipe 362. The second grey disc 36 is provided with a first bearing for radial load and a second bearing for axial load in the middle to reduce losses for the rotation of the grate system.

The ash discharge groove 371, the first slag outlet 316, the slag leakage hole and the second slag outlet 361 are communicated with each other.

The ash scraping plate 38 is fixedly connected to the mounting portion 313 and scrapes ash on the second ash tray 36 into the second slag outlet 361 during rotation together with the mounting portion 313.

In this embodiment, the slag discharger 314 performs a slag discharging function when rotating in a forward direction (i.e. counterclockwise in fig. 2) along with the first grate 31, and specifically, the slag discharger 314 presses the ash toward the first slag outlet 316, and then the ash falls into the second ash pan 36 through the ash leakage hole 372, and is scraped into the second slag outlet 361 by the ash scraping plate 38, and finally falls into the ash storage box 40. When the slag tapping device 314 rotates in a reverse direction (i.e. clockwise in fig. 2), because the slag tapping device 314 has a spiral structure and the extrusion force on the material is small, the slag tapping device 314, the first grate 31 and the second grate 33 stir the material and the ash together, and only a small amount of the ash is discharged from the first slag outlet 316 in the process. Also, when the reverse rotation steady operation is performed, the velocity of the ash of the first ash tray 37 is made to coincide with that of the first grate 31, and the ash is not substantially discharged from the first slag outlet 316. Only in the reverse rotation and rotation stage, a small amount of slag is discharged due to the speed inconsistency between the ash and the first grate 31.

In this embodiment, through controlling the grate to rotate positively and negatively, realized the even stirring of in-furnace rubbish heat energy conversion process and the independent control of frequency of slagging tap, be favorable to promoting the combustion effect of pyrolysis gasifier, be favorable to the steady operation of pyrolysis gasifier, be favorable to reducing investment cost.

In one embodiment, the grate drive system 39 includes a driven gear 391, a drive gear 392, a housing 393 and a motor 394. The driven gear 391 is sleeved on the supporting portion 312, and is located below the bottom of the first ash tray 37 and above the bottom of the second ash tray 36, the bottom of the driven gear is fixedly provided with the ash scraping plate 38, a channel for ash to pass through is opened on the driven gear 391, and the driven gear 391 is meshed with the driving gear 392 passing through the second ash tray 36. The driving gear 392 is rotatably installed in the case 393, and the case 393 is installed on the outer wall of the second gray plate 36 and is hermetically connected with the second gray plate 36. An electric motor 394 is secured to the housing 393 and is operable to drive the rotation of the drive gear 392 and thereby rotate the first grate 31. A scraper plate 38 is fixed to the bottom of the driven gear 391, the scraper plate extending in the radial direction of the driven gear 391. The dust scraper 38 is mounted on the driven gear 391, and compared with the case where the dust scraper 38 is mounted on the support portion 312, the mounting and dismounting are more convenient and the design is more reasonable.

In one embodiment, the first slag outlet 316 is proximate to the inside of the slag tap 314. Thus, when the slag tap 314 rotates forward with the first grate 31, ash is more easily removed from the first slag outlet 316.

In one embodiment, the grate system further comprises a second grate 33 fixedly disposed on top of the first grate 31, the top of the second grate 33 extending up to the middle of the furnace 11. The gasifying agent air inlet system also comprises an air supply pipe 34 and a second air chamber 35, wherein the air supply pipe 34 sequentially penetrates through the first air chamber 32 and the first grate 31 from bottom to top, the second air chamber 35 is arranged at the bottom of the air supply pipe 34, the air supply pipe 34 is hermetically connected with the first air chamber 32, and the top of the air supply pipe 34 is fixedly connected with the second grate 33. The first air chamber 32 provides gasifying agent for the first grate 31, and the second air chamber 35 mainly adds water vapor to the middle part of the hearth 11 through the second grate 33, so that H2/CO of fuel gas can be obviously improved, the gas-making efficiency of the furnace is improved, the water vapor can also play a role in preventing the temperature of a bed layer from being raised beyond the limit, slag is reduced, and a tuyere is protected.

In one embodiment, a plurality of slag extractors 315 are further disposed on the outer side of the mounting portion 313 along the circumferential direction, the slag extractors 315 are located in the ash discharge groove 371, and the slag extractors 315 are disposed between the adjacent slag extractors 314. The slag extractor 315 and the slag extractor 314 are arranged in a staggered manner, preferably, the slag extractor 315 and the slag extractor 314 are arranged in a one-to-one correspondence manner, and one slag extractor 315 is arranged between two adjacent slag extractors 314. The slag extractor 315 can enhance the stirring effect of the materials and ash during the reverse rotation stage.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (5)

1. The utility model provides a domestic waste handles pyrolysis gasifier dross removal mechanism, its sets up in the furnace body lower part of pyrolysis gasifier, and it includes grate system, gasification agent air intake system and grate actuating system, the grate system includes first grate, first grate including be pagoda shape somatic part, with the lower part of somatic part border fixed connection be the installation department of cylinder and with the bottom center department fixed connection's of somatic part supporting part, the supporting part rotationally sets up the bottom of furnace body, gasification agent air intake system is including setting up the first air chamber of the bottom of first grate, its characterized in that: further comprising:

the first ash tray is fixedly arranged at the bottom of the furnace body, and the bottom of the first ash tray is provided with a slag leaking hole which is adaptive to the mounting part;

the second ash tray is fixedly arranged at the bottom of the furnace body, is positioned at the outer side of the first ash tray, and is provided with a second slag outlet at the bottom; and

the ash scraping plate is fixedly connected with the mounting part and is used for scraping ash on the second ash tray into the second slag outlet in the process of rotating along with the mounting part;

the outside of installation department is provided with a plurality of spiral slag ejectors that are along circumference, open on the installation department have a plurality ofly with the corresponding first slag notch of slag ejector, first ash tray with enclose into the ash chute between the installation department, the slag ejector is located in the ash chute.

2. The slag removal device of a household garbage disposal pyrolysis gasification furnace according to claim 1, characterized in that: the grate drive system comprises:

the driven gear is sleeved on the supporting part and is positioned below the bottom of the first ash tray and above the bottom of the second ash tray, and the bottom of the driven gear is fixedly provided with the ash scraping plate;

the driving gear penetrates through the second ash tray and is meshed with the driven gear;

the box body is fixedly arranged on the outer wall of the second ash tray and used for mounting the driving gear; and

and the motor is fixedly arranged outside the box body and is used for driving the driving gear to rotate.

3. The slag removal device of a household garbage disposal pyrolysis gasification furnace according to claim 1, characterized in that: the first slag outlet is close to the inner side of the slag discharger.

4. The slag removal device of a household garbage disposal pyrolysis gasification furnace according to claim 1, characterized in that: the grate system further comprises a second grate fixedly arranged at the top of the first grate, the gasifying agent air inlet system further comprises an air supply pipe and a second air chamber, the air supply pipe sequentially penetrates through the first air chamber and the first grate from bottom to top, the second air chamber is arranged at the bottom of the air supply pipe, the air supply pipe is hermetically connected with the first air chamber, and the top of the air supply pipe is fixedly connected with the second grate.

5. The slag removal device of a household garbage disposal pyrolysis gasification furnace according to claim 1, characterized in that: the outside of installation department still is provided with a plurality of kickoff along circumference, the kickoff is located the ash chute, the kickoff sets up adjacently between the ware of slagging tap.

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