CN215610059U - Hot air inlet pipe ash removal device for industrial byproduct gypsum powder fluidized bed furnace - Google Patents

Abstract

The utility model relates to a hot air inlet pipe ash removal device for an industrial byproduct gypsum powder fluidized bed furnace, belonging to the field of environmental protection and dust removal. The utility model adopts the scheme that the device for removing the ash of the hot air inlet pipe of the fluidized bed furnace of the industrial byproduct gypsum powder device is characterized by comprising a hot air inlet pipe of the fluidized bed furnace, a coal dust filter plate, an ash collecting hopper and a gravity ash discharger, wherein the coal dust filter plate is obliquely arranged in the hot air inlet pipe of the fluidized bed furnace, the ash collecting hopper is arranged on the pipe wall of the hot air inlet pipe of the fluidized bed furnace below or laterally below the coal dust filter plate, and the gravity ash discharger is arranged at the lower part of the ash collecting hopper. The method has the advantages of reducing the cleaning time of the coal ash and the smoke dust, saving the labor cost and improving the quality stability of the gypsum powder.

Description

Hot air inlet pipe ash removal device for industrial byproduct gypsum powder fluidized bed furnace

Technical Field

The utility model relates to a hot air inlet pipe ash removal device for an industrial byproduct gypsum powder fluidized bed furnace, belonging to the field of environmental protection and dust removal.

Background

The phosphogypsum powder production line using coal as a heat source has the advantages that coal ash is mixed with hot air in the operation process of a coal-fired hot air furnace, the problem that the finished gypsum of the phosphogypsum production line is doped with the coal ash to influence the quality of a gypsum powder product and the problem of coal ash accumulation is easily caused at the horizontal turning position of a pipeline, the smoke and dust cannot be effectively treated as time is accumulated, the field environment is influenced, the pipeline is blocked and needs to be manually cleaned, time and labor are wasted, the maintenance cost and the maintenance workload are increased, an ordinary pipeline is arranged at the position 5-8 meters away from the ground, unsafe factors are brought to the cleaning work, and the problem can be effectively solved by a device capable of automatically cleaning the ash.

Disclosure of Invention

According to the existing problems, the utility model provides the hot air inlet pipe ash removal device for the fluidized bed furnace for industrial byproduct gypsum powder, which effectively solves the problems of cleaning smoke dust and coal ash, saves time, reduces labor cost and the like.

Preferably, the device for removing the ash of the hot air inlet pipe of the fluidized bed furnace of the industrial byproduct gypsum powder device is characterized by comprising the fluidized bed furnace, a hot air inlet pipe, a coal dust filter plate, an ash collecting hopper and a gravity ash discharger, wherein the coal dust filter plate is obliquely arranged in the hot air inlet pipe of the fluidized bed furnace, the ash collecting hopper is arranged on the wall of the hot air inlet pipe of the fluidized bed furnace below or laterally below the coal dust filter plate, and the gravity ash discharger is arranged at the lower part of the ash collecting hopper.

Preferably, the coal dust filter plate inclines towards the hot air inlet direction, the hot air inlet pipe of the fluidized bed furnace is provided with the coal dust filter plate, the diameter of the position of the coal dust filter plate is larger than that of other parts, the position is internally provided with the heat insulation layer, the pipe wall of the upper part of the position is provided with an inspection and maintenance port, and the inspection and maintenance port is provided with a maintenance cover.

Preferably, the hot air inlet pipe of the fluidized bed furnace is provided with two right-angle turning channels, the coal dust filter plate is positioned in a vertical pipeline between the two right-angle turning channels, the dust collecting hopper is positioned at the horizontal straight pipe of the lower outer turning channel, the coal dust filter plate is inclined towards the dust collecting hopper,

as preferred collection ash bucket for leaking hopper-shaped, the lower part opening of collection ash bucket is connected with the ash collecting pipe, and ash collecting pipe vertical layout, the lower extreme opening setting of ash collecting pipe the gravity unload grey ware, the gravity is unloaded to be equipped with gravity balancing unit on the grey ware.

Preferably, the hot air source direction of a hot air inlet pipe of the fluidized bed furnace is connected with the coal-fired hot air furnace, the hot air flowing direction of the hot air inlet pipe of the fluidized bed furnace is connected with the fluidized bed furnace, the top of the fluidized bed furnace is provided with a dust remover, and the dust remover is downwards inclined through a pipeline and is connected with a dust removing fan.

Preferably, the middle of the fluidized bed furnace is connected with a waste heat recovery pipeline, the waste heat recovery pipeline is connected with an air inlet of a high-temperature return fan, and an air outlet of the high-temperature return fan is connected with a coal-fired hot blast stove through a pipeline.

Preferably, a temperature sensor is arranged on a hot air inlet pipe of the fluidized bed furnace behind the coal dust filter plate.

The method has the advantages of reducing the cleaning time of the coal ash and the smoke dust, saving the labor cost and improving the quality stability of the gypsum powder.

Drawings

FIG. 1 is a diagram showing the position relationship of a dust removing device of a gypsum powder calcining device,

FIG. 2 is a schematic view of the ash removing device of the present invention,

FIG. 3 is a schematic view of the ash removing device of the present invention,

reference numerals

1. The device comprises a maintenance cover, 2, a heat insulation layer, 3, a coal dust filter plate, 4, an ash collecting hopper, 5, an ash collecting pipeline, 6, a gravity ash discharger, 7, a dust removing fan, 8, a dust remover, 9, a fluidized bed furnace, 10, a waste heat recovery pipeline, 11, a high-temperature return fan, 12, a coal-fired hot blast stove, 13, a temperature sensor, 14 and a hot air inlet pipe.

Detailed Description

The following further description is made in conjunction with the accompanying drawings and examples.

The utility model relates to a hot air inlet pipe ash removal device of a fluidized bed furnace for industrial byproduct gypsum powder, which has a structure shown in figures 1-3 and comprises a fluidized bed furnace 9, a hot air inlet pipe 14, a coal dust filter plate 3, an ash collecting hopper 4 and a gravity ash remover 6, wherein the coal dust filter plate 3 is obliquely arranged in the hot air inlet pipe 14 of the fluidized bed furnace, the ash collecting hopper 4 is arranged on the pipe wall of the hot air inlet pipe 14 of the fluidized bed furnace below or laterally below the coal dust filter plate 3, and the gravity ash remover 6 is arranged at the lower part of the ash collecting hopper 4.

The coal dust filter plate 3 is further inclined towards the hot air inlet direction, the hot air inlet pipe 14 of the fluidized bed furnace is provided with the coal dust filter plate 3, the diameter of the position of the hot air inlet pipe is larger than that of other parts, the heat insulation layer 2 is arranged in the position, the pipe wall of the upper part of the position is provided with an inspection and maintenance port, the inspection and maintenance port is provided with a maintenance cover 1, and the hot air inlet pipe 14 of the fluidized bed furnace behind the coal dust filter plate 3 is provided with a temperature sensor 13.

The hot air inlet pipe 14 of the fluidized bed furnace is provided with two right-angle turning curves, the coal dust filter plate 3 is arranged in a vertical pipeline between the two right-angle turning curves, the dust collecting hopper 4 is arranged at the horizontal straight pipe of the lower part turning curve, the coal dust filter plate 3 inclines towards the dust collecting hopper 4, the dust collecting hopper 4 is funnel-shaped, the lower opening of the dust collecting hopper 4 is connected with the dust collecting pipeline 5, the dust collecting pipeline 5 is vertically arranged, the lower opening of the dust collecting pipeline 5 is provided with the gravity dust discharging device 6, and the gravity dust discharging device 6 is provided with a gravity balancing device.

The hot air source direction of a hot air inlet pipe 14 of the fluidized bed furnace is further connected with a coal-fired hot air furnace 12, the hot air flowing direction of the hot air inlet pipe 14 of the fluidized bed furnace is connected with a fluidized bed furnace 9, a dust remover 8 is arranged at the top of the fluidized bed furnace 9, the dust remover 8 is connected with a dust removing fan 7 through a pipeline in a downward inclining mode, a waste heat recovery pipeline 10 is connected in the middle of the fluidized bed furnace 9, the waste heat recovery pipeline 10 is connected with an air inlet of a high-temperature return fan 11, and an air outlet of the high-temperature return fan 11 is connected with the coal-fired hot air furnace 12 through a pipeline.

Embodiment 1 of the hot air inlet pipe ash removal device for the fluidized bed furnace of the industrial byproduct gypsum powder device

Hot air provided by a coal-fired hot air furnace 12 enters a hot air inlet pipe 14, coal ash collected by a coal-fired filter plate 3 is blown down through an inclined coal-dust filter plate 3 and falls into a lower ash collecting hopper 4, the hot air falls into a lower connecting ash collecting pipeline 5 through the ash collecting hopper 4 and is accumulated, after a certain weight is accumulated, a gravity ash discharger 6 at the lower part of the ash collecting pipeline 5 is opened and falls into a coal ash collecting trolley, ash removal is finished, hot air after ash removal enters a fluidized bed furnace 9 through the coal-dust filter plate 3 to calcine gypsum powder, a dust remover 8 at the top of the fluidized bed furnace 9 removes gypsum dust generated in the calcining process through a dust removing fan 7, the dust removing fan 7 provides negative pressure for the whole heat supply process, a waste heat recovery pipeline 10 recovers the residual hot air to the coal-fired hot air furnace 12 through a high-temperature return fan 11, a heat insulation layer 2 is arranged inside the position of the coal-dust filter plate 3, and an inspection and maintenance port is arranged on the upper pipe wall of the position of the inner heat insulation layer 2, the inspection and maintenance port is provided with a maintenance cover 1, so that the inspection and maintenance are facilitated.

Example 2

Hot air provided by a coal hot-blast stove 12 enters a lower horizontal hot-air inlet pipe 14, coal dust collected by the coal dust filter plate 3 is blown down through the inclined coal dust filter plate 3 in a vertical pipe, the coal dust slides into a lower ash collecting hopper 4, the coal dust falls into a lower connected ash collecting pipe 5 through the ash collecting hopper 4 and is accumulated, after a certain weight is accumulated, a gravity ash discharger 6 at the lower part of the ash collecting pipe 5 is opened and falls into a coal dust collecting trolley, ash removal is completed, hot air after ash removal enters a fluidized bed furnace 9 through an upper horizontal hot-air inlet pipe 14 to calcine gypsum powder, a dust remover 8 at the top of the fluidized bed furnace 9 removes gypsum dust generated in the calcining process through a dust removing fan 7, the dust removing fan 7 provides negative pressure for the whole heat supply flow, a waste heat recovery pipe 10 recovers residual hot air to the coal hot-blast stove 12 through a high-temperature return fan 11, a heat insulation layer 2 is arranged in the upper horizontal hot-air inlet pipe 14 at the upper part, an inspection maintenance port is arranged at the upper part of the inner heat insulation layer 2, the inspection and maintenance port is provided with a maintenance cover 1, so that the inspection and maintenance are facilitated.

Claims (7)

1. The utility model provides an industry by-product gypsum powder fluidized bed furnace hot-blast advances a tub ash removal device, its characterized in that, including fluidized bed furnace (9), hot-blast pipe (14), coal dust filter plate (3), dust collection bucket (4) and gravity dust discharging device (6) of advancing, the hot-blast intraductal (14) of advancing of fluidized bed furnace is interior to be equipped with coal dust filter plate (3) in the slope, and dust collection bucket (4) are established on the hot-blast pipe (14) pipe wall that advances of fluidized bed furnace below or side below coal dust filter plate (3), and dust collection bucket (4) lower part sets up gravity dust discharging device (6).

2. The device for removing the ash of the hot air inlet pipe of the industrial by-product gypsum powder boiling furnace according to claim 1, wherein the coal dust filter plate (3) is inclined towards the hot air inlet direction, the hot air inlet pipe (14) of the boiling furnace is provided with the coal dust filter plate (3) at a position with a diameter larger than that of other parts, the inner heat insulation layer (2) is arranged at the position, the pipe wall at the upper part of the position is provided with an inspection and maintenance port, and the inspection and maintenance port is provided with a maintenance cover (1).

3. The ash removal device for the hot air inlet pipe of the industrial by-product gypsum powder boiling furnace according to claim 1, wherein the hot air inlet pipe (14) of the boiling furnace is provided with two right-angled turning curves, the coal dust filter plate (3) is arranged in a vertical pipeline between the two right-angled turning curves, the ash collection hopper (4) is arranged at a horizontal straight pipe of the lower outer turning curve, and the coal dust filter plate (3) inclines towards the ash collection hopper (4).

4. The hot air inlet pipe ash removal device for the industrial byproduct gypsum powder boiling furnace according to claim 2 or 3, wherein the ash collection hopper (4) is funnel-shaped, an ash collection pipeline (5) is connected to an opening at the lower part of the ash collection hopper (4), the ash collection pipeline (5) is vertically arranged, the gravity ash discharge device (6) is arranged at an opening at the lower end of the ash collection pipeline (5), and a gravity balance device is arranged on the gravity ash discharge device (6).

5. The industrial byproduct gypsum powder boiling furnace hot air inlet pipe ash removal device according to claim 1, characterized in that a hot air inlet pipe (14) of the boiling furnace is connected with a coal-fired hot air furnace (12) in a hot air source direction, the hot air inlet pipe (14) of the boiling furnace is connected with a boiling furnace (9) in a hot air flowing direction, a dust remover (8) is arranged at the top of the boiling furnace (9), and the dust remover (8) is connected with a dust removal fan (7) in a downward inclination manner through a pipeline.

6. The device for removing the ash of the hot air inlet pipe of the industrial by-product gypsum powder boiling furnace according to claim 5, wherein a waste heat recovery pipeline (10) is connected in the middle of the boiling furnace (9), the waste heat recovery pipeline (10) is connected with an air inlet of a high-temperature return fan (11), and an air outlet of the high-temperature return fan (11) is connected with a coal-fired hot air furnace (12) through a pipeline.

7. The ash removal device for the hot air inlet pipe of the industrial byproduct gypsum powder boiling furnace according to claim 1, wherein a temperature sensor (13) is arranged on the hot air inlet pipe (14) of the boiling furnace behind the coal dust filter plate (3).

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