Fire grate type biomass gasification furnace air distribution plate capable of turning over to discharge slag

Abstract

The utility model discloses a fire grate type biomass gasification furnace air distribution plate capable of turning over to discharge slag, and particularly relates to the field of biomass gasification furnaces, the fire grate type biomass gasification furnace air distribution plate comprises a gasification furnace, an air distribution plate assembly is arranged below a spiral feeding assembly in the gasification furnace, and the air distribution plate assembly comprises an annular installation part fixedly arranged on the inner side wall of the gasification furnace. A plurality of fixed teeth are fixedly arranged on the inner side wall of the annular mounting part, a plurality of central turnover shafts are arranged on the inner side of the annular mounting part, turnover plate teeth are fixedly arranged at the two ends of each central turnover shaft, and one end of each central turnover shaft penetrates through the annular mounting part and the side wall of the gasification furnace and is arranged at the outer end of the gasification furnace. According to the device, the air inlet requirement can be met, redundant air can be limited from entering, the center overturning shaft of each unit rotates left and right to drive the fire grate teeth to overturn up and down, sundries accumulated and accumulated on the air distribution plate are overturned to fall onto the ash collecting plate below, and slag can be discharged regularly.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of biomass gasification furnace, concretely to a furnace grate formula can overturn the slagging of biomass gasification furnace cloth wind board. BACKGROUND

[0002] Biomass fluidized bed gasification furnace generally has cloth wind board device, the conventional has round hole formula, the bonnet formula and so on, in daily operation, since the source of biomass raw material is relatively complex, inevitably will have stone, tile, broken glass bottle etc. Contaminate in it, these slag objects will not be pyrolysis gasification, generally will be accumulated in the furnace bottom, cloth wind board, since these things are heavy, also will not be discharged from the outlet of the biochar, long-term operation day accumulates, these things will increase, will gradually affect the air inlet of cloth wind board, affect the normal operation of pyrolysis gasification of gasification furnace. CONTENT

[0003] The utility model discloses a furnace grate formula can overturn the slagging of biomass gasification furnace cloth wind board to solve the problem in the background art.

[0004] In order to solve the above technical problem, the utility model provides the following technical scheme: a furnace grate formula can overturn the slagging of biomass gasification furnace cloth wind board, including gasification furnace, the lower end one side of gasification furnace is provided with spiral feeding assembly, the inside of gasification furnace below spiral feeding assembly is provided with cloth wind board subassembly, the cloth wind board subassembly includes annular mounting piece fixedly set on the inner side wall in gasification furnace, a plurality of fixed teeth are fixedly set on the inner side wall of annular mounting piece, the inside of annular mounting piece is provided with a plurality of central overturning shafts, both ends of central overturning shaft are fixedly provided with turning plate tooth, and one end of central overturning shaft passes through annular mounting piece and gasification furnace side wall and is provided with the outside end of gasification furnace.

[0005] In a preferred embodiment, the turning plate teeth on the adjacent two central overturning shafts are staggered, and the turning plate teeth on the two ends of the central overturning shaft are staggered with the fixed teeth on the inner side wall of the annular mounting piece. The staggered turning plate teeth and fixed teeth can meet the air inlet requirement and limit the entry of excess air.

[0006] In a preferred embodiment, one end of the central overturning shaft is rotatably arranged on the inner side wall of the annular mounting piece, facilitating rotation of the central overturning shaft.

[0007] In a preferred embodiment, the inside bottom end of the gasification furnace is provided with an ash collecting plate, which is pullably arranged on the gasification furnace. The arrangement of the ash collecting plate facilitates the collection and treatment of dust.

[0008] In a preferred embodiment, an air inlet assembly is arranged between the ash collecting plate and the cloth wind board assembly.

[0009] Compared with the prior art, the utility model discloses the beneficial effects reached are:

[0010] The utility model discloses a furnace grate type air distribution plate, which is divided into multiple units, each unit is connected with a central turning shaft, the central turning shaft can rotate left and right, thereby driving the furnace grate teeth to turn left and right, the furnace grate teeth between multiple units are cross arranged, and the density is appropriate, which can meet the air intake demand and limit the excess air from entering. When it is necessary to discharge slag, the central turning shaft of each unit is rotated left and right, thereby driving the furnace grate teeth to turn up and down, the accumulated sundries accumulated on the air distribution plate are turned and fallen to the ash collecting plate below, and the ash collecting plate can be regularly pulled and opened to discharge the slag. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are used to provide further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model, and do not constitute the limitation to the utility model. In the drawings:

[0012] Fig. 1 It is the internal structure schematic view of the gasification furnace of the utility model,

[0013] Fig. 2 It is the overhead structure schematic view of the utility model.

[0014] In the drawing: 1, gasification furnace, 2, spiral feeding assembly, 3, air distribution plate assembly, 301, annular mounting, 302, fixed tooth, 303, central turning shaft, 304, turning plate tooth, 4, ash collecting plate, 5, air inlet assembly. DETAILED DESCRIPTION

[0015] The technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the range of protection of the utility model.

[0016] Please refer to Figs. 1-2The utility model provides a furnace can turn over and discharge the furnace grate type of biomass gasification furnace air distribution plate, including gasification furnace 1, the lower end one side of gasification furnace 1 is provided with spiral feeding assembly 2, the inside of gasification furnace 1 is located below spiral feeding assembly 2 and is provided with air distribution plate assembly 3, air distribution plate assembly 3 includes the annular mounting piece 301 of fixed setting in the inner wall of gasification furnace 1, a plurality of fixed teeth 302 are fixedly arranged on the inner side wall of annular mounting piece 301, the inside of annular mounting piece 301 is provided with a plurality of central turnover shafts 303, both ends of central turnover shaft 303 are fixedly provided with flap tooth 304, and one end of central turnover shaft 303 passes through annular mounting piece 301 and gasification furnace 1 lateral wall and is provided in the outer end of gasification furnace 1.

[0017] In a preferred embodiment, the flap teeth 304 on the two adjacent central turnover shafts 303 are staggered, and the flap teeth 304 on the two ends of the central turnover shaft 303 are staggered with the fixed teeth 302 on the inner side wall of the annular mounting piece 301. The staggered flap teeth 304 and fixed teeth 302 allow air to enter above the air distribution plate assembly 3 through the gap, facilitating the combustion of the material.

[0018] In a preferred embodiment, one end of the central turnover shaft 303 is rotatably arranged on the inner side wall of the annular mounting piece 301, facilitating the rotation of the central turnover shaft 303.

[0019] In a preferred embodiment, the inside bottom end of the gasification furnace 1 is provided with an ash collecting plate 4, which is pullably arranged on the gasification furnace 1. The ash collecting plate 4 collects dust, and by pulling out the ash collecting plate 4, the ash collecting plate 4 is easily cleaned.

[0020] In a preferred embodiment, an air inlet assembly 5 is provided between the ash collecting plate 4 and the air distribution plate assembly 3. The air inlet assembly 5 ventilates the inside of the gasification furnace 1, facilitating the combustion of the fuel.

[0021] The working principle of the utility model is as follows:

[0022] In actual use, the central turnover shaft 303 is rotated to rotate the flap teeth 304, so that the flap teeth 304 are staggered with the fixed teeth 302. Air enters above the air distribution plate assembly 3 through the gap between the flap teeth 304 and the fixed teeth 302 and the flap teeth 304, facilitating the combustion of the material. When the material burns, the slag falls above the air distribution plate assembly 3. When the slag needs to be discharged, the central turnover shaft 303 is rotated to drive the flap teeth 304 to separate from the fixed teeth 302. The accumulated debris falls on the ash collecting plate 4 through the gap between the adjacent flap teeth 304 and the flap teeth 304 and the fixed teeth 302. The ash collecting plate 4 is pulled out regularly to clean the debris.

[0023] It should be pointed out finally that: the above is only the preferred embodiments of the present application and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A grate-type biomass gasifier with a tilting ash discharge mechanism, comprising a gasifier (1), wherein a spiral feeding assembly (2) is provided on one side of the lower end of the gasifier (1), characterized in that, Inside the gasifier (1), below the screw feed assembly (2), there is an air distribution plate assembly (3). The air distribution plate assembly (3) includes an annular mounting member (301) fixedly mounted on the inner side wall of the gasifier (1). Several fixing teeth (302) are fixedly mounted on the inner side wall of the annular mounting member (301). Multiple central rotating shafts (303) are provided on the inner side of the annular mounting member (301). Both ends of the central rotating shaft (303) are fixedly mounted with flipping teeth (304). One end of the central rotating shaft (303) passes through the annular mounting member (301) and the side wall of the gasifier (1) and is located at the outer end of the gasifier (1).

2. The air distribution plate of a grate-type biomass gasification furnace with tilting ash discharge as described in claim 1, characterized in that, The flap teeth (304) on two adjacent central flip shafts (303) are staggered, and the flap teeth (304) on the central flip shafts (303) at both ends are staggered with the fixing teeth (302) on the inner sidewall of the annular mounting component (301).

3. The air distribution plate of a grate-type biomass gasification furnace with tilting ash discharge as described in claim 1, characterized in that, One end of the central flipping shaft (303) is rotatably mounted on the inner wall of the annular mounting component (301).

4. The air distribution plate of a grate-type biomass gasification furnace with tilting ash discharge as described in claim 1, characterized in that, The gasifier (1) is provided with an ash collection plate (4) at the bottom of its interior, and the ash collection plate (4) is pulled out and installed on the gasifier (1).

5. The air distribution plate of a grate-type biomass gasification furnace with tilting ash discharge capability according to claim 4, characterized in that, An air inlet assembly (5) is provided between the dust collection plate (4) and the air distribution plate assembly (3).

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