Slag conveying and dust removing device

Abstract

The utility model relates to a slag conveying and dust removing device which comprises a plurality of slag discharging machines and a dust removing device body connected with the slag discharging machines through pipelines, a sealing cover is arranged on the outer side of a belt discharging opening of each slag discharging machine, each sealing cover is communicated with each air exhaust branch pipe through an adjusting air exhaust pipe, and the air exhaust branch pipes are communicated with the dust removing device body. The air exhaust branch pipes are connected into the air exhaust main pipe, the dust removal device is installed at the end of the air exhaust main pipe, and the air exhaust main pipe and the air exhaust branch pipes are in a negative pressure state by starting the dust removal device, so that dust at the position of the sealing cover is sucked, and the dust removal effect is achieved. The dust removal device has the advantages of simple and reasonable structure, good dust removal effect, stable and safe operation and the like.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of furnace slag dust removal, and relates to a furnace slag conveying and dust removal device. BACKGROUND

[0002] A boiler is an energy conversion device, and the energy input into the boiler includes chemical energy in fuel and electric energy. The boiler outputs steam, high-temperature water or organic heat carriers with certain heat energy. A large amount of dust is generated in the 0-meter layer of the boiler during the conveying process of the furnace slag from a slag cooler (slag discharger) to a stock bin through a belt, which seriously affects the working environment of employees and the health of workers.

[0003] Therefore, a furnace slag conveying and dust removal device is designed to overcome the above problems. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at overcoming the deficiencies in the prior art and providing a furnace slag conveying and dust removal device which is simple and reasonable in structure, efficient and safe, and stable in operation.

[0005] The utility model is implemented through the following technical scheme: a furnace slag conveying and dust removal device, which comprises a slag discharger and a dust removal device connected with the pipeline of the slag discharger. The slag discharger is a plurality of units. A sealing cover is arranged outside the belt discharge port of each slag discharger. Each sealing cover is connected in communication with each air extraction branch pipe through an adjustable air extraction pipe. The air extraction branch pipes are connected to an air extraction main pipe. The dust removal device is installed at the end of the air extraction main pipe. The air extraction main pipe and the air extraction branch pipe are brought into a negative pressure state by opening the dust removal device, so that the dust at the sealing cover is sucked and removed, achieving the dust removal effect.

[0006] As a preferred option, the dust removal device is composed of a bag-type dust collector and a negative pressure fan. The negative pressure fan is installed on the air extraction main pipe close to the inlet of the bag-type dust collector. The dust is sucked into the bag-type dust collector by the negative pressure fan for treatment.

[0007] As a preferred option, an adjustable valve is installed on each adjustable air extraction pipe, air extraction branch pipe and air extraction main pipe. The adjustable valve is used to adjust the air inlet size of the adjustable air extraction pipe, air extraction branch pipe and air extraction main pipe according to the operation condition of the boiler, so as to adjust the air volume of the negative pressure fan.

[0008] As a preferred option, the diameter of the adjustable air extraction pipe is 159 mm, the diameter of the air extraction branch pipe is 426 mm, and the diameter of the air extraction main pipe is 630 mm.

[0009] As a preferred option, a plurality of pressure gauges and pressure relief valves are arranged on the side of the adjustable air extraction pipe, air extraction branch pipe and air extraction main pipe. The pressure condition of the adjustable air extraction pipe, air extraction branch pipe and air extraction main pipe is monitored in real time by the pressure gauges. When the pressure is abnormal, the pressure relief valve is opened to ensure normal operation.

[0010] Preferably, the sealing cover is a frustum-shaped structure that is wider at the bottom and narrower at the top. This structure is used to improve the dust collection effect. The sealing cover completely encloses the belt feed port, and the narrow opening is connected to the regulating suction pipe. A metal mesh is provided at the connection between the narrow opening and the regulating suction pipe to prevent objects from being accidentally sucked in and damaging the pipes, negative pressure fan, and bag filter.

[0011] Preferably, the regulating extraction pipe, extraction branch pipe, and extraction main pipe are all located at the 0-meter level of the boiler.

[0012] The beneficial effects of this utility model are as follows:

[0013] The slag conveying dust removal device designed in this utility model lays a main ash suction pipe at the 0-meter level of the boiler, and a sealing cover is installed at the conveyor belt discharge port of each slag discharge machine. The sealing cover is connected to the main ash suction pipe through the adjustable air extraction pipe and the air extraction branch pipe, and then connected to the bag filter dust collector. An adjustable valve is installed on each pipe, which can adjust the air volume of the negative pressure fan according to the boiler's operating conditions. The dust collector generates a large amount of negative pressure to suck up the dust, achieving the dust removal effect and thus ensuring the health of the staff. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model. Detailed Implementation

[0015] To enable those skilled in the art to more clearly understand the purpose, technical solution and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0016] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0017] The present invention will now be described in detail with reference to the accompanying drawings: Figure 1As shown, a slag conveying dust removal device, including a slag tap 1 and a dust removal device connected with the slag tap pipeline, the slag tap 1 is multiple, and a sealing cover 2 is arranged outside the belt discharge port of each slag tap, each sealing cover 2 is communicated with each air extraction branch pipe 4 through an adjusting air extraction pipe 3, the air extraction branch pipe 4 is connected to the air extraction main pipe 5 respectively, and the dust removal device is installed at the end of the air extraction main pipe 5, the air extraction main pipe 5 and the air extraction branch pipe 4 become negative pressure state by opening the dust removal device, so as to suck the dust at the sealing cover 2, and the dust removal effect is achieved. The adjusting air extraction pipe 3, the air extraction branch pipe 4 and the air extraction main pipe 5 are arranged at the 0-meter layer of the boiler.

[0018] The dust removal device is composed of a bag dust collector 6 and a negative pressure fan 7, the negative pressure fan 7 is installed on the air extraction main pipe 5 close to the inlet of the bag dust collector 6, and the dust is sucked into the bag dust collector 6 for treatment by the negative pressure fan 7. An adjustable valve 8 is installed on each of the adjusting air extraction pipe 3, the air extraction branch pipe 4 and the air extraction main pipe 5, the adjustable valve 8 is used for adjusting the air inlet size of the adjusting air extraction pipe 3, the air extraction branch pipe 4 and the air extraction main pipe 5 according to the operation condition of the boiler, so as to adjust the air volume of the negative pressure fan 7. The diameter of the adjusting air extraction pipe 3 is preferably 159 mm, the diameter of the air extraction branch pipe 4 is 426 mm, and the diameter of the air extraction main pipe 5 is 630 mm.

[0019] A plurality of pressure gauges 9 and pressure relief valves 10 are arranged on the side of the adjusting air extraction pipe 3, the air extraction branch pipe 4 and the air extraction main pipe 5, the pressure condition of the adjusting air extraction pipe 3, the air extraction branch pipe 4 and the air extraction main pipe 5 is monitored in real time by the pressure gauges 9, and when the pressure is abnormal, the pressure relief valve 10 is opened, which is used to ensure normal operation.

[0020] The sealing cover 2 is a circular truncated cone structure with wide bottom and narrow top, which is used to improve the dust absorption effect, the sealing cover 2 wraps the belt discharge port, and the narrow port is connected with the adjusting air extraction pipe 3, and a metal screen is arranged at the connection between the narrow port and the adjusting air extraction pipe 3, which prevents the damage of the pipeline, the negative pressure fan 7 and the bag dust collector 6 caused by the mistaken suction of objects.

[0021] The specific embodiments described herein are only illustrative of the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. A slag conveying dust removal device, comprising a slag discharger (1) and a dust removal device connected to the slag discharger pipeline, characterized in that: The slag discharge machine (1) consists of multiple units. A sealing cover (2) is installed on the outside of the conveyor belt discharge port of each slag discharge machine. Each sealing cover (2) is connected to each air extraction branch pipe (4) through an adjustable air extraction pipe (3). The air extraction branch pipe (4) is connected to the main air extraction pipe (5). A dust removal device is installed at the end of the main air extraction pipe (5). By turning on the dust removal device, the main air extraction pipe (5) and the air extraction branch pipe (4) become negative pressure, thereby absorbing the dust at the sealing cover (2) and achieving the dust removal effect.

2. The slag conveying and dust removal device according to claim 1, characterized in that: The dust removal device consists of a bag filter (6) and a negative pressure fan (7). The negative pressure fan (7) is installed on the exhaust manifold (5) near the inlet of the bag filter (6). The negative pressure fan (7) draws the dust into the bag filter (6) for processing.

3. The slag conveying and dust removal device according to claim 1 or 2, characterized in that: Each of the aforementioned regulating exhaust pipe (3), exhaust branch pipe (4) and exhaust main pipe (5) is equipped with an adjustable valve (8). The adjustable valve (8) is used to adjust the intake size of the regulating exhaust pipe (3), exhaust branch pipe (4) and exhaust main pipe (5) according to the boiler operation, thereby adjusting the air volume of the negative pressure fan (7).

4. The slag conveying and dust removal device according to claim 3, characterized in that: The diameter of the regulating suction pipe (3) is 159 mm, the diameter of the suction branch pipe (4) is 426 mm, and the diameter of the suction main pipe (5) is 630 mm.

5. The slag conveying and dust removal device according to claim 4, characterized in that: Multiple pressure gauges (9) and pressure relief valves (10) are installed on the sides of the regulating air extraction pipe (3), the air extraction branch pipe (4) and the air extraction main pipe (5). The pressure gauges (9) monitor the pressure of the regulating air extraction pipe (3), the air extraction branch pipe (4) and the air extraction main pipe (5) in real time. When the pressure is abnormal, the pressure relief valve (10) is opened to ensure normal operation.

6. The slag conveying and dust removal device according to claim 1 or 5, characterized in that: The sealing cover (2) is a frustum-shaped structure that is wider at the bottom and narrower at the top. This structure is used to improve the dust collection effect. The sealing cover (2) completely encloses the belt feed port, and the narrow opening is connected to the regulating suction pipe (3). A metal mesh is provided at the connection between the narrow opening and the regulating suction pipe (3) to prevent objects from being accidentally sucked in and damaging the pipe, negative pressure fan (7), and bag filter (6).

7. The slag conveying and dust removal device according to claim 5, characterized in that: The regulating extraction pipe (3), extraction branch pipe (4) and extraction main pipe (5) are all located at the 0-meter level of the boiler.

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