CN206337225U - A kind of coal supply apparatus of novel fluidization bed gasification furnace - Google Patents

Abstract

The utility model discloses a kind of coal supply apparatus of novel fluidization bed gasification furnace, what it was included in the discharge nozzle of high pressure lock hopper and gasification furnace enters the coal supply apparatus main body set between coal inclined tube, source of the gas；Coal supply apparatus main body includes horizontal coal chute, coal feeding pipe, anti-blowpipe, appendix, coal output pipe and closure plate；The coal feeding pipe and appendix connected with coal chute is vertically arranged with the upper side wall at coal chute two ends respectively；It is coaxial vertical provided with the anti-blowpipe connected with coal chute in the coal chute lower sidewalls of the lower section of coal feeding pipe；It is coaxial vertical provided with the coal output pipe connected with coal chute in the coal chute lower sidewalls of the lower section of appendix.Beneficial effect：Air-tightness is good, it is to avoid coal supply apparatus is leaked, and is reduced maintenance frequency, is reduced maintenance cost, it is ensured that the normal coal of gasification furnace；Avoid coal dust and block pipeline, reduce cleaning frequency, improve production efficiency；The size that gas pressure intensity can be passed through by control is controlled to coal-fired feed flow.

Description

A kind of coal supply apparatus of novel fluidization bed gasification furnace

Technical field：

The utility model is related to a kind of coal supply apparatus, more particularly to a kind of coal supply apparatus of novel fluidization bed gasification furnace.

Background technology：

Existing fluidized-bed gasification furnace is typically realized to gasification furnace using plant equipment such as rotary feeder, conveying worms Coal, such as 0.4MPa gasification furnaces select conveying worm coal, 1.0MPa gasification furnaces use rotary feeder coal；With right The requirement more and more higher of gasification furnace production capacity, therefore the gasification furnace of low-pressure can not meet existing production requirement, work as gasification After the pressure of stove is more than 1.0MPa, there is problems with above-mentioned plant equipment during to gasification furnace coal：1st, due to existing With the presence of the substantial amounts of static and dynamic sealing point of stoker feed equipment, with the raising of fluidized system pressure, stoker feed equipment It is easy to, because air pressure is too big and leaks, leak at the static and dynamic sealing point of stoker feed equipment at static and dynamic sealing point, Then the stoker feed equipment needs to be repaired, while fretting wear often occurs for existing stoker feed device interior, causes Stoker feed device fails are, it is necessary to be repaired, therefore maintenance frequency is more, and maintenance cost is high；Stoker feed equipment stops Operation, can influence the coal efficiency to gasification furnace, gasification furnace can be made to stop production when serious.2nd, existing coal plant equipment is to gasification furnace When adding coal dust, coal dust is easily accumulated, and is bonded in the gap of plant equipment, influences the operation of plant equipment, it is necessary to often clear Reason, influences production efficiency.

Utility model content：

The purpose of this utility model is to provide that a kind of air-tightness is good, anti-clogging, and can control the new of coal flow The coal supply apparatus of fluidized-bed gasification furnace.

The utility model is implemented by following technical scheme：A kind of coal supply apparatus of novel fluidization bed gasification furnace, it is included in The discharge nozzle of high pressure lock hopper and gasification furnace enter the coal supply apparatus main body set between coal inclined tube, source of the gas；The coal supply apparatus master Body includes horizontal coal chute, coal feeding pipe, anti-blowpipe, appendix, coal output pipe and closure plate；The upper side wall at the coal chute two ends It is upper to be vertically arranged with the coal feeding pipe and the appendix connected with the coal chute respectively；The coal feeding pipe and the gas transmission The diameter parallel of pipe is set；In the coal chute lower sidewalls of the lower section of the coal feeding pipe it is coaxial vertical be provided with it is described defeated The anti-blowpipe of coal pipe connection；It is coaxial in the coal chute lower sidewalls of the lower section of the appendix to be provided with vertically and institute State the coal output pipe of coal chute connection；The diameter parallel of the anti-blowpipe and the coal output pipe is set；The coal chute, it is described Coal feeding pipe, the anti-blowpipe, the appendix are overall into H-shaped with the coal output pipe；With the coal feeding pipe and the anti-blowpipe phase The mouth of pipe of adjacent coal chute is air inlet；Pass through spiral shell on the mouth of pipe of the coal chute adjacent with the coal output pipe with the appendix Bolt is fixed with the closure plate；The discharge nozzle is connected with the coal feeding pipe；The lower end of the coal output pipe with it is described enter coal inclined tube Connection；The gas outlet of the source of the gas respectively with the discharge nozzle, the anti-blowpipe, the appendix, the air inlet and described Enter coal inclined tube to connect by pipeline.

Advantage of the present utility model：1st, coal-fired coal supply apparatus is conveyed using air-flow, without dynamic sealing point, its air-tightness It is good, it is to avoid coal supply apparatus is leaked, and is reduced maintenance frequency, is reduced maintenance cost, it is ensured that the normal coal of gasification furnace； 2nd, by anti-blowpipe, appendix and enter to be passed through gases at high pressure in coal inclined tube can be respectively to coal chute, coal output pipe and to enter coal oblique Pipe is dredged, it is to avoid coal dust blocks pipeline, reduces cleaning frequency, improves production efficiency；3rd, using can pass through control The size that system is passed through gas pressure intensity is controlled to coal-fired feed flow.

Brief description of the drawings：

Fig. 1 is overall structure diagram of the present utility model.

High pressure lock hopper 1, discharge nozzle 2, gasification furnace 3 enters coal inclined tube 4, coal supply apparatus main body 5, coal chute 5.1, coal feeding pipe 5.2, anti-blowpipe 5.3, appendix 5.4, coal output pipe 5.5, air inlet 5.6, closure plate 5.7, source of the gas 6.

Embodiment：

Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail.

As shown in figure 1, a kind of coal supply apparatus of novel fluidization bed gasification furnace, its be included in the discharge nozzle 2 of high pressure lock hopper 1 with Gasification furnace 3 enters the coal supply apparatus main body 5 set between coal inclined tube 4, source of the gas 6；Coal supply apparatus main body 5 includes horizontal coal chute 5.1st, coal feeding pipe 5.2, anti-blowpipe 5.3, appendix 5.4, coal output pipe 5.5 and closure plate 5.7；The upper side wall at the two ends of coal chute 5.1 It is upper to be vertically arranged with the coal feeding pipe 5.2 and appendix 5.4 connected with coal chute 5.1 respectively；Coal feeding pipe 5.2 and appendix 5.4 Diameter parallel is set；Coaxial vertical be provided with connects with coal chute 5.1 in the lower sidewalls of coal chute 5.1 of the lower section of coal feeding pipe 5.2 Logical anti-blowpipe 5.3；Coaxial vertical be provided with connects with coal chute 5.1 in the lower sidewalls of coal chute 5.1 of the lower section of appendix 5.4 Logical coal output pipe 5.5；The diameter parallel of anti-blowpipe 5.3 and coal output pipe 5.5 is set；Coal chute 5.1, coal feeding pipe 5.2, anti-blowpipe 5.3, appendix 5.4 is overall into H-shaped with coal output pipe 5.5；The mouth of pipe of the coal chute 5.1 adjacent with anti-blowpipe 5.3 with coal feeding pipe 5.2 For air inlet 5.6；It is bolted on the mouth of pipe of the coal chute 5.1 adjacent with coal output pipe 5.5 with appendix 5.4 provided with stifled Plate 5.7, in order to close the mouth of pipe of the coal chute 5.1 adjacent with coal output pipe 5.5 with appendix 5.4；Discharge nozzle 2 and coal feeding pipe 5.2 Connection；The lower end of coal output pipe 5.5 is connected with entering coal inclined tube 4；The gas outlet of source of the gas 6 respectively with discharge nozzle 2, anti-blowpipe 5.3, gas transmission Pipe 5.4, air inlet 5.6 and enter coal inclined tube 4 and connected by pipeline.

Operation instruction：Coal dust in high pressure lock hopper 1 is in the presence of the gases at high pressure and self gravitation of discharge nozzle 2 are passed through Fall into coal chute 5.1；In the presence of the gases at high pressure of air inlet 5.6 are passed through, coal dust is in coal chute 5.1 to closure plate 5.7 One end flowing, after flowing at coal output pipe 5.5, fallen into the presence of the air-flow in self gravitation and appendix 5.4 into In coal inclined tube 4, the coal dust entered in coal inclined tube 4 is blown into gasification furnace 3 by being passed through into the gases at high pressure in coal inclined tube 4；Together When can be by controlling the size of air inlet 5.6, appendix 5.4 and the gases at high pressure entered in coal inclined tube 4, to control pulverized coal conveying Uninterrupted.

When the situation of coal dust blocking occur in discharge nozzle 2 and the coal feeding pipe 5.2 of high pressure lock hopper 1, to being passed through in anti-blowpipe 5.3 Gases at high pressure, while increase is passed through the gas in discharge nozzle 2, make the gas pressure intensity increase for being passed through coal feeding pipe 5.2, to coal feeding pipe 5.2 are dredged；When coal output pipe 5.5 or after enter coal inclined tube 4 and block, appendix 5.4 can be increased and enter coal inclined tube 4 Gas, dredge to coal output pipe 5.5 with entering coal inclined tube 4, it is to avoid coal supply apparatus occurs occurring system stopping after blocking The situation of operation；Pass through chimneying pulverized coal conveying, it is ensured that the air-tightness of coal supply apparatus.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Within the spirit and principle of utility model, any modifications, equivalent substitutions and improvements made etc. should be included in the utility model Protection domain within.

Claims (1)

1. a kind of coal supply apparatus of novel fluidization bed gasification furnace, it is characterised in that it is included in the discharge nozzle and gas of high pressure lock hopper That changes stove enters the coal supply apparatus main body set between coal inclined tube, source of the gas；The coal supply apparatus main body includes horizontal coal chute, entered Coal pipe, anti-blowpipe, appendix, coal output pipe and closure plate；It is vertically arranged with respectively on the upper side wall at the coal chute two ends and institute State the coal feeding pipe and the appendix of coal chute connection；The diameter parallel of the coal feeding pipe and the appendix is set； It is coaxial vertical provided with the blowback connected with the coal chute in the coal chute lower sidewalls of the lower section of the coal feeding pipe Pipe；Coaxially it is provided with vertically in the coal chute lower sidewalls of the lower section of the appendix described in being connected with the coal chute Coal output pipe；The diameter parallel of the anti-blowpipe and the coal output pipe is set；The coal chute, the coal feeding pipe, the anti-blowpipe, The appendix is overall into H-shaped with the coal output pipe；The mouth of pipe of the coal chute adjacent with the anti-blowpipe with the coal feeding pipe is Air inlet；It is bolted on the mouth of pipe of the coal chute adjacent with the coal output pipe with the appendix provided with described stifled Plate；The discharge nozzle is connected with the coal feeding pipe；The lower end of the coal output pipe with it is described enter coal inclined tube connect；The source of the gas goes out Gas port respectively with the discharge nozzle, the anti-blowpipe, the appendix, the air inlet and it is described enter coal inclined tube connected by pipeline Connect.