Automatic dust suppression device for ash bin

Abstract

The utility model relates to an automatic dust suppression device for an ash bin, which comprises an ash bin body, a dust remover, a pressure detector and a safety valve are arranged at the top of the ash bin body, a sealing cover is sleeved on the outer side of the safety valve, a sealing pipeline communicated with the sealing cover is arranged on the sealing cover, and the sealing pipeline is parallel to the ash bin body. A plurality of atomizing nozzles are arranged on the inner wall of the sealing pipeline and are annularly distributed, every two adjacent atomizing nozzles are connected through a spraying branch pipe, one spraying branch pipe is connected with a spraying main pipe, the spraying main pipe is connected with a process water main pipe, an ash outlet in the bottom of the ash bin body is connected with an ash outlet pipeline, and the ash outlet pipeline is connected with a process water main pipe. The ash bin top safety valve solves the problems that when the ash bin top safety valve works, ash powder is prevented from overflowing to pollute the environment, and unorganized emission is avoided.

Description

Technical Field

[0001] The utility model relates to an automatic dust suppression device for an ash bin. Background Art

[0002] The conventional design of the ash silo is equipped with a fluidizing air duct at the bottom of the ash silo, using compressed air for fluidization to prevent material compaction. The ash silo is equipped with a level meter to monitor the material level in real time. A dust collector is installed on the top of the ash silo to balance the pressure in the pipe and prevent ash from overflowing and unorganized emissions. A safety breathing valve is also installed on the top of the ash silo to prevent the pressure in the ash silo from being too high or too low for safety protection. However, in actual operation, failures of equipment such as the dust collector and level meter on the silo top will cause the safety breathing valve to operate, resulting in unorganized emissions. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model proposes an automatic dust suppression device for an ash silo, which solves the problem of preventing ash powder from overflowing and polluting the environment and preventing unorganized emissions when the safety valve on the top of the ash silo is working.

[0004] The utility model provides a technical solution to the above technical problems: an automatic dust suppression device for an ash bin is provided, comprising an ash bin body, a dust collector, a pressure detector and a safety valve are arranged on the top of the ash bin body, a sealing cover is sleeved on the outer side of the safety valve, a sealing pipe connected to the sealing cover is arranged on the sealing cover, and the sealing pipe is parallel to the ash bin body, a plurality of atomizing nozzles are arranged along the inner wall of the sealing pipe and are distributed in a ring shape, and two adjacent atomizing nozzles are connected by a spray branch pipe, and one of the spray branches is connected to a spray main pipe, and the spray main pipe is connected to a process jellyfish pipe, and the ash outlet at the bottom of the ash bin body is connected to the ash outlet pipe, and a plug-in valve and a star feeder are arranged in sequence on the ash outlet pipe.

[0005] The technical solution further defined in the utility model is:

[0006] Preferably, the pressure detector is a pressure transmitter.

[0007] Preferably, a pneumatic quick-opening valve is provided on the spray main pipe.

[0008] Preferably, the pneumatic quick-opening valve is interlocked with the pressure transmitter.

[0009] Preferably, the number of the atomizing nozzles is 4-8.

[0010] The beneficial effects of the utility model are as follows: the utility model has a simple structure, a pressure transmitter is arranged on the top of the ash silo body to detect the pressure in the silo in real time, and the pressure signal is transmitted to the DCS central control system at the same time, a sealing cover is set on the outer side of the safety valve on the top of the ash silo body, and a sealing pipe is used to seal and extend to the lower part of the ash silo body, an atomizing nozzle of a vertical pipe is arranged inside the sealing pipe, which is connected through a spray branch pipe, and the spray branch pipe is connected to the spray main pipe, and a pneumatic quick-opening valve is arranged on the spray main pipe, and the spray main pipe is connected to the process water pipe in the plant area, and the process water pressure is ≥0.4 MPa, and the switch signal of the pneumatic quick-opening valve is incorporated into the DCS central control system to realize remote control, and then interlocked with the pressure transmitter, the pressure interlock value is less than the working pressure of the silo top safety valve, the interlocking pneumatic valve is automatically opened, the atomizing nozzle works, and a mist film is formed. When the silo top safety valve works, the gas in the silo is mixed with ash powder and overflows, and after being washed by the mist film, the ash powder is prevented from overflowing into the atmosphere, causing environmental pollution and unorganized emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model. DETAILED DESCRIPTION

[0012] Example

[0013] This embodiment provides an automatic dust suppression device for a dust bin, such as Figure 1 As shown, it includes an ash bin body 1, a dust collector 3, a pressure detector 3 and a safety valve 4 are arranged on the top of the ash bin body 1, the pressure detector is a pressure transmitter, a sealing cover 5 is sleeved on the outer side of the safety valve, a sealing pipe 6 connected thereto is arranged on the sealing cover, and the sealing pipe is parallel to the ash bin body, 6 atomizing nozzles 7 are arranged along the inner wall of the sealing pipe and are distributed in a ring shape, and at the same time, two adjacent atomizing nozzles are connected by a spray branch pipe 8, and one of the spray branches is connected to a spray main pipe 9, and the spray main pipe is connected to a process jellyfish pipe 10, and a pneumatic quick-opening valve 11 is arranged on the spray main pipe, and the pneumatic quick-opening valve is interlocked with the pressure transmitter, and the ash outlet at the bottom of the ash bin body is connected to the ash outlet pipe 2, and the ash outlet pipe is sequentially provided with a plug-in valve 12 and a star feeder 13.

[0014] The present embodiment has a simple structure. A pressure transmitter is arranged on the top of the ash silo body to detect the pressure in the silo in real time, and the pressure signal is transmitted to the DCS central control system. A sealing cover is sleeved on the outer side of the safety valve on the top of the ash silo body, and a sealing pipe is used to seal and extend to the lower part of the ash silo body. An atomizing nozzle of a vertical pipe is arranged inside the sealing pipe, which is connected through a spray branch pipe. The spray branch pipe is connected to the spray main pipe, and a pneumatic quick-opening valve is arranged on the spray main pipe. At the same time, the spray main pipe is connected to the process water pipe in the plant area. The process water pressure is ≥0.4 MPa, and the switch signal of the pneumatic quick-opening valve is incorporated into the DCS central control system to realize remote control, and then interlocked with the pressure transmitter. The pressure interlock value is less than the working pressure of the silo top safety valve. The interlocking pneumatic valve is automatically opened, and the atomizing nozzle works to form a mist film. When the silo top safety valve works, the gas in the silo is mixed with ash powder and overflows. After being washed by the mist film, the ash powder is prevented from overflowing into the atmosphere to cause environmental pollution and unorganized emissions.

[0015] In addition to the above embodiments, the present invention may also have other implementation modes. Any technical solutions formed by equivalent replacement or equivalent transformation shall fall within the protection scope required by the present invention.

Claims

1. An automatic dust suppression device for an ash bin, comprising an ash bin body, characterized in that: A dust collector, a pressure detector and a safety valve are arranged on the top of the ash silo body, a sealing cover is sleeved on the outer side of the safety valve, a sealing pipe connected to the sealing cover is arranged on the sealing cover, and the sealing pipe is parallel to the ash silo body, a plurality of atomizing nozzles are arranged along the inner wall of the sealing pipe and are distributed in a ring shape, and two adjacent atomizing nozzles are connected by a spray branch pipe, and one of the spray branches is connected to the spray main pipe, and the spray main pipe is connected to the process jellyfish pipe, and the ash outlet at the bottom of the ash silo body is connected to the ash outlet pipe, and the ash outlet pipe is sequentially provided with a plug-in valve and a star feeder.

2. The automatic dust suppression device for ash silo according to claim 1 is characterized by: The pressure detector is a pressure transmitter.

3. The automatic dust suppression device for ash silo according to claim 2 is characterized in that: A pneumatic quick-opening valve is arranged on the spray main pipe.

4. The automatic dust suppression device for ash silo according to claim 3 is characterized by: The pneumatic quick-opening valve is interlocked with the pressure transmitter.

5. The automatic dust suppression device for ash silo according to claim 1 is characterized by: The number of the atomizing nozzles is 4-8.

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