CN209155394U - A kind of Industrial Boiler smoke duster for preventing reentrainment of dust - Google Patents

Abstract

The utility model discloses a flue gas dust collector for preventing secondary dust for an industrial boiler. A dust collecting hopper is fixedly arranged on the bottom surface of a box body, an annular cavity is arranged on the dust collecting hopper near the upper end, and the dust collecting hopper is provided with an annular cavity. The inner wall near the upper port is provided with a water spout which is connected to the annular cavity, the inner wall of the dust collecting hopper is provided with a spiral-shaped water flow guiding groove, the bottom of the dust collecting hopper is connected with the rectangular water tank, and the interior of the rectangular water A filter screen plate is provided, and the bottom of the rectangular water tank is communicated with the top of the circulating water pool. In the utility model, the water flow sprayed from the water spray port forms a vortex plane at the upper port of the dust collecting hopper, and the vortex plane can not only collect the smoke and dust falling from the inside of the box into the water flow, and prevent the dust from being collected in the water flow. The smoke and dust are raised for the second time, and at the same time, the water flow mixed with the smoke and dust hits the inner wall of the dust collecting hopper and flows downward in a spiral shape along the inner wall of the dust collecting hopper, which can clean the inner wall of the dust collecting hopper.

Description

A flue gas dust collector for preventing secondary dust for industrial boilers

technical field

The utility model relates to the technical field of a flue gas dust collector for preventing secondary dust, in particular to a flue gas dust collector for preventing secondary dust for industrial boilers.

Background technique

The application number is 201620623612.0. An industrial boiler flue gas dust collector is proposed. The support of the device is provided with a box body, the lower part of the box body is provided with an ash hopper, and the bottom of the ash hopper is provided with a vibration ash discharge port. The device has high dust removal efficiency and will not Blockage occurs and the service life is long, but it still has the following disadvantages in actual use:

When the dust enters the dust removal bag from the air inlet, part of the dust will enter the upper port of the ash hopper, and the fallen dust will be drawn into the air flow of the dust to be removed again, and the dust removal will be carried out again, thereby reducing the dust removal efficiency.

Utility model content

The purpose of the utility model is to provide a flue gas dust collector for preventing secondary dust for industrial boilers, so as to solve the problems raised in the above background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: a flue gas dust collector for preventing secondary dust for industrial boilers, comprising a box body, a support frame is fixed on the outer side of the bottom of the box body, and a support frame is fixed on the outer side of the bottom of the box body. A support screen is arranged at the bottom of the inner side, the right side of the support screen is communicated with the air inlet, a dust removal bag is arranged on the upper surface of the support screen in the box, and a clean room is arranged above the dust bag. A dust collecting hopper is fixed on the bottom surface of the box body, the dust collecting hopper communicates with the bottom of the box body, an annular cavity is provided on the dust collecting hopper near the upper end, and the dust collecting hopper is close to the upper port The inner wall of the dust-collecting hopper is provided with a water spout which is connected to the annular cavity, the inner wall of the dust-collecting hopper is provided with water flow guiding grooves arranged in a spiral shape, and the bottom of the dust-collecting hopper is communicated with a rectangular water tank, and the rectangular water tank There is a filter screen plate inside, and the bottom of the rectangular water tank is communicated with the top of the circulating water tank.

Preferably, the ports of the water jets are inclined in a counterclockwise direction, and the angle formed by the central axis of the water jets and the tangent to the inner wall of the dust collecting hopper is 60 degrees.

Preferably, the water spray ports are provided with multiple groups, and the multiple groups of the water spray ports are arranged in an equidistant ring on the inner wall of the upper end of the dust collecting hopper.

Preferably, the front end of the filter screen plate is fixedly connected to the sealing plate, the front surface of the sealing plate is fixedly connected to the U-shaped handle, and the surrounding edges of the sealing plate are provided with rubber gaskets.

Preferably, the right end of the circulating water tank is connected with one end of a water pipe, the other end of the water pipe is connected with the annular cavity, and the water pipe is provided with a circulating water pump.

Compared with the prior art, the beneficial effects of the present utility model are:

1. In the present utility model, the water flow from the water spout forms a vortex plane at the upper port of the dust collecting hopper, and the vortex plane can not only be swept into the water flow to collect the smoke and dust dropped from the inside of the box in the dust collecting hopper. , to prevent the smoke and dust from being raised twice, and at the same time, the water flow mixed with smoke and dust hits the inner wall of the dust collecting hopper and flows down in a spiral shape along the inner wall of the dust collecting hopper, which can clean the inner wall of the dust collecting hopper;

2. The filter screen plate in the utility model is fixedly connected with the sealing plate, so that the filter screen screen plate can be pulled out from the inside of the rectangular water tank, which is convenient for regular cleaning of the filter screen plate.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is an enlarged view at A in Fig. 1;

FIG. 3 is a schematic diagram of the connection state between the sealing plate and the filter screen plate.

In the figure: box 1, support frame 2, support screen 3, dust removal bag 4, clean room 5, dust collection hopper 6, annular cavity 7, water spout 8, water flow guide groove 9, sealing plate 10, rectangular Water tank 11 , circulating water pool 12 , water pipe 13 , circulating water pump 14 , U-shaped handle 15 , air inlet 16 , filter screen 17 .

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

1-3, the present utility model provides a technical solution: a flue gas dust collector for preventing secondary dust for industrial boilers, comprising a box body 1, and a support frame 2 is fixed on the outer side of the bottom of the box body 1. The inner bottom of the body 1 is provided with a supporting mesh plate 3, and the right side of the supporting mesh plate 3 is communicated with the air inlet 16. The box body 1 is located on the upper surface of the supporting mesh plate 3 with a dust removal bag 4, and the top of the dust removal cloth bag 4 is provided with In the clean room 5, a dust collecting hopper 6 is fixed on the bottom surface of the box body 1. The dust collecting hopper 6 communicates with the bottom of the box body 1. The dust collecting hopper 6 is provided with an annular cavity 7 near the upper end. The dust collecting hopper 6 The inner wall near the upper port is provided with a water spray port 8 which is connected to the annular cavity 7, the inner wall of the dust collecting hopper 6 is provided with a spiral-shaped water flow guide groove 9, and the bottom of the dust collecting hopper 6 is connected to the rectangular water tank. 11 is connected, the interior of the rectangular water tank 11 is provided with a filter screen plate 17, and the bottom of the rectangular water tank 11 is communicated with the top of the circulating water tank 12.

Further, the ports of the water spout 8 are inclined towards the counterclockwise direction, and the angle formed by the central axis of the water spout 8 and the tangent to the inner wall of the dust collecting hopper 6 is 60 degrees.

Further, the water jets 8 are provided with multiple groups, and the multiple groups of water jets 8 are arranged in an equidistant ring on the inner wall of the upper end of the dust collecting hopper 6, thereby forming a vortex plane, which is convenient for the smoke and dust to be drawn into the water flow, and the water flowing down can counteract the flow of dust. The inner wall of the dust collection hopper 6 is cleaned.

Further, the front end of the filter plate 17 is fixedly connected to the sealing plate 10 , the front of the sealing plate 10 is fixedly connected to the U-shaped handle 15 , and the surrounding edges of the sealing plate 10 are provided with rubber gaskets to improve the sealing performance of the sealing plate 10 .

Further, the right end of the circulating water pool 12 is connected to one end of the water pipe 13 , the other end of the water pipe 13 is connected to the annular cavity 7 , and the water pipe 13 is provided with a circulating water pump 14 .

Working principle: In the actual use project of the present utility model, the circulating water pump 14 draws the water located in the circulating water pool 12 through the water pipe 13 to the inside of the annular cavity 7 at the upper end of the dust collecting hopper 6, and the water entering the annular cavity 7 flows from the inside of the annular cavity 7. The water spray port 8 inside the dust collecting hopper 6 is sprayed, so that the water flow forms a vortex-shaped water flow plane on the upper end surface of the dust collecting hopper 6, so that the smoke and dust falling into the dust collecting hopper 6 from the dust bag 4 inside the box 1 will be discharged. After being drawn into the water by the eddy current level, it hits the inner wall of the dust collecting hopper 6, and finally flows down from the water flow guide groove 9 on the inner wall of the dust collecting hopper 6 and enters the interior of the rectangular water tank 11. The water flow mixed with soot is filtered, so that the soot particles stay on the filter screen 17, the water from the soot particles flows down into the interior of the rotating pool 12 again, and the circulating water pump 14 draws the water to the annular cavity 7 again, and so on. , while the smoke and dust are drawn into the vortex water flow, the water flow can continuously clean the inside of the dust collecting hopper 6, which is more convenient to use, and can prevent the smoke and dust from being raised twice, which is suitable for promotion.

Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes and modifications can be made to these embodiments without departing from the principles and spirit of the present invention , alternatives and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A flue gas dust collector for preventing secondary dust for an industrial boiler, comprising a box body (1), a support frame (2) is fixed on the outer side of the bottom of the box body (1), and the box body (1) A support screen (3) is provided on the inner bottom of the box body (3), the right side of the support screen (3) is connected with the air inlet (16), and the box (1) is located on the upper surface of the support screen (3). A dust-removing bag (4) is provided, and a cleaning chamber (5) is arranged above the dust-removing bag (4). The dust collecting hopper (6) is communicated with the bottom of the box (1), an annular cavity (7) is provided on the dust collecting hopper (6) near the upper end, and the dust collecting hopper (6) is close to the upper port The inner wall of the dust collecting hopper (6) is provided with a water spout (8) which is connected through the annular cavity (7), and the inner wall of the dust collecting hopper (6) is provided with spirally arranged water flow guiding grooves (9). The bottom of the dust hopper (6) is communicated with a rectangular water tank (11), a filter screen plate (17) is arranged inside the rectangular water tank (11), and the bottom of the rectangular water tank (11) is connected to the top of the circulating water tank (12). connected. 2 . The flue gas dust collector for preventing secondary dust for an industrial boiler according to claim 1 , wherein the ports of the water spray ports ( 8 ) are all inclined in a counterclockwise direction, and the water spray ports The angle formed by the central axis of the mouth (8) and the tangent to the inner wall of the dust collecting hopper (6) is 60 degrees. 3. A flue gas dust collector for preventing secondary dust for industrial boilers according to claim 1, characterized in that: the water spray ports (8) are provided with multiple groups, and multiple groups of the water spray ports (8) are provided. ) on the inner wall of the upper end of the dust collecting hopper (6) in an equidistant annular arrangement. The flue gas dust collector for preventing secondary dust for industrial boilers according to claim 1, characterized in that: the front end of the filter screen plate (17) is fixedly connected to the sealing plate (10), and the sealing The front surface of the plate (10) is fixedly connected with the U-shaped handle (15), and the surrounding edges of the sealing plate (10) are provided with rubber gaskets. The flue gas dust collector for preventing secondary dust for an industrial boiler according to claim 1, characterized in that: the right end of the circulating water pool (12) is connected to one end of a water pipe (13) through and through, and the water pipe The other end of (13) is connected through the annular cavity (7), and a circulating water pump (14) is provided on the water pipe (13).