CN211585667U - Even gas distribution device of bag collector - Google Patents

Abstract

The utility model relates to the technical field of bag filter, and discloses a uniform air distribution device for bag filter, which comprises a casing, a vibration frame arranged in the casing, a plurality of filter bags connected to the vibration frame, and drives the vibration frame to reciprocate up and down The first moving driving part, a flower plate is connected to the bottom end of the filter bag, an air inlet is arranged under the flower plate, a number of inclined plates are arranged parallel to the connection between the air inlet and the casing, and two symmetrical plates are arranged on both sides of the casing. There are two air outlets, an ash collecting hopper is connected under the shell, and two airflow reflection plates are hinged at the joint between the ash collecting hopper and the shell through a torsion spring, and the second driving member that drives the reflection plates to rotate. The utility model has the following advantages and effects: an inclined plate and a reflecting plate are arranged at the air inlet, the air flow is buffered by the inclined plate and then flows obliquely downward to the reflecting plate, and flows upward into the filter bag under the action of the reflecting plate, and the air flow is evenly distributed. The airflow direction is reasonable, which can improve the dust removal efficiency of the bag filter.

Description

A kind of uniform air distribution device for bag filter

technical field

The utility model relates to the technical field of bag filter, in particular to a uniform air distribution device of a bag filter.

Background technique

A bag filter is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of woven filter cloth or non-woven felt, and the dust-containing gas is filtered by the filtering effect of the fiber fabric. The action settles down and falls into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is blocked and the gas is purified. When the inlet air velocity of the bag filter is high, a vortex will be formed in the filter, resulting in uneven distribution of the air intake, resulting in excessive load on the local filter bag and damage; there is an ash collecting bucket at the bottom of the bag filter. When the direction of the intake air flow is unreasonable, the dust in the ash collecting hopper will be brought up, resulting in secondary dust and reducing the dust removal efficiency of the bag filter.

Utility model content

The purpose of the utility model is to provide a bag-type dust collector uniform air distribution device, which has the advantages of simple structure, uniform air distribution and reducing secondary dust.

The above technical purpose of the present utility model is achieved through the following technical solutions: including a casing, a vibrating frame arranged in the casing, several filter bags connected to the vibrating frame, and driving the vibrating frame to reciprocate up and down. The first driving part of the filter bag is connected with a flower plate at the bottom end of the filter bag, and an air inlet is arranged under the flower plate. Two air outlets are symmetrically arranged on both sides of the body, the air outlets are connected with the induced draft fan, an ash collecting hopper is connected under the casing, and two airflows are hinged at the connection between the ash collecting hopper and the casing through a torsion spring The reflecting plate, the second driving member that drives the reflecting plate to rotate.

By adopting the above technical solution, when the bag filter is used to treat the dust-laden gas, the dust-laden gas enters the shell from the air inlet, and the air inlet is provided with a sloping plate, which can buffer the air intake air and remove part of it at the same time. Large particle dust; an airflow reflector is arranged at the connection between the ash hopper and the shell, and the airflow flows down the sloping plate to the reflector, so that the airflow flows upwards evenly and avoids eddy currents in the shell; the two sides of the shell are provided with There are two air outlets, and the clean gas treated by the filter bag is discharged from the air outlet; a vibrating frame is arranged in the casing. When cleaning the dust, the driving part drives the vibrating frame to reciprocate up and down to drive the filter bag to vibrate together, so that the inside of the filter bag vibrates together. The adsorbed dust is vibrated, and when the vibrating frame vibrates up and down, the reflective plate is driven to open and close by the second driving member, so that the dust in the filter bag falls into the ash collecting hopper below the reflective plate.

The utility model is further provided as follows: the first driving member includes a motor fixed in the casing, a cam connected to the output shaft of the motor, and the cam is connected to the vibration plate.

By adopting the above technical solution, the motor drives the cam to rotate, and the cam drives the vibrating plate to move up and down.

The utility model is further configured as follows: the vibration frame includes a support frame located on the inner wall of the housing, a spring fixed on the support frame, and a vibration plate connected to the upper end of the spring, and the bottom surface of the vibration plate is provided with a plurality of the corresponding bumps of the filter bag.

By adopting the above technical solution, the cam drives the vibrating plate to vibrate up and down, and the bumps on the bottom surface of the vibrating plate continuously tap the filter bag to vibrate the filter bag, thereby vibrating out the dust in the filter bag.

The utility model is further configured as follows: the second driving member includes two mutually symmetrical driving rods connected to the vibration plate, a limit ring fixed on the inner wall of the casing for the driving rods to be embedded, the The bottom end of the driving rod is hinged on the reflection plate.

By adopting the above technical solution, when the vibrating plate vibrates, it drives the driving rod to vibrate up and down along the limit ring, and the bottom end of the driving rod is hinged on the reflective plate. When the driving rod moves up and down, it can drive the reflective plate to open and close, and dust falls into In the ash collecting hopper, when the reflector is closed, the dust in the ash collecting hopper can be prevented from being raised by the intake air.

The utility model is further provided as follows: the inner wall of the casing is provided with a limit block, and the elastic force of the torsion spring drives the reflection plate to contact the limit block when the two reflection plates are in contact with each other.

The utility model is further provided as follows: the reflecting plate is provided with a plurality of baffles perpendicular to the reflecting plate.

By adopting the above technical solution, the baffle plate provided on the reflector can guide the airflow, so that the airflow can move upwards uniformly.

The beneficial effects of the utility model are as follows: an inclined plate and a reflecting plate are arranged at the air inlet, the air flow is buffered by the inclined plate and then flows obliquely downward to the reflecting plate, and flows upward into the filter bag under the action of the reflecting plate, the air flow is evenly distributed, and the air flow is evenly distributed. Reasonable direction can improve the dust removal efficiency of the bag filter; when the dust is removed, the two reflectors are connected, which can play a diversion role on the one hand, and avoid the dust in the ash collecting hopper from being raised on the other hand. Opening and closing under the action of the second driving element can make the dust on the reflector fall into the ash collecting hopper.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some implementations of the present invention. For example, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a transverse cross-sectional view of this embodiment.

FIG. 2 is a longitudinal sectional view of this embodiment.

FIG. 3 is an enlarged view of part A of FIG. 2 .

In the figure, 1, shell; 2, vibrating frame; 21, support frame; 22, spring; 23, vibrating plate; 24, bump; 3, driving part one; 31, motor; 32, cam; 4, filter bag ;5, flower plate; 6, air inlet; 7, inclined plate; 8, ash hopper; 9, torsion spring; 10, reflector plate; 11, baffle plate; 12, air outlet; 13, driving part two; 131 , drive rod; 132, limit ring; 14, limit block.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some of the embodiments of the present invention, but not all of the embodiments. 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.

Example: A bag-type dust collector uniform air distribution device is shown in Figure 1, including a housing 1, a vibration frame 2 is arranged in the housing 1, a driving part 1 is arranged in the housing 1, and the driving part 1 includes: The motor 31 fixed in the housing 1, the output shaft of the motor 31 is connected with a cam 32, the cam 32 is connected with the vibration frame 2, and the motor 31 drives the vibration frame 2 to reciprocate up and down through the cam 32; A support frame 21 on the inner wall, a spring 22 is arranged on the support frame 21, a vibration plate 23 is connected above the spring 22, a plurality of bumps 24 are arranged at the bottom end of the vibration plate 23, and a plurality of filters corresponding to the bumps 24 are arranged in the housing 1. When the bag 4, the vibration frame 2 moves up and down, the filter bag 4 is continuously hit by the bump 24 to realize the vibration cleaning.

As shown in FIG. 2 , the bottom end of the filter bag 4 is connected with a flower plate 5 , an air inlet 6 is arranged under the flower plate 5 , and several inclined plates 7 are arranged in parallel at the connection between the air inlet 6 and the casing 1 . There is an ash collecting hopper 8 connected below, and two airflow reflecting plates 10 are hinged at the connection between the ash collecting hopper 8 and the shell 1 through a torsion spring 9, and a plurality of baffles 11 perpendicular to the reflecting plate 10 are arranged on the airflow reflecting plate 10. The air flow from the air inlet 6 passes through the inclined plate 7 and then flows obliquely downward to the reflector plate 10, and flows upward evenly under the action of the reflector plate 10 and the baffle 11. Two air outlets 12 are symmetrically arranged on both sides of the housing 1. The clean gas processed by the bag 4 is discharged from the gas outlet 12 .

As shown in FIG. 3 , the reflecting plate 10 is connected with a second driving member 13 that drives the reflecting plate 10 to rotate. The second driving member 13 includes two driving rods 131 connected to the vibrating plate 23 . The bottom end of the driving rods 131 is connected to the reflecting plate 10 . Hinged, the inner wall of the housing 1 is provided with a limit ring 132 into which the driving rod 131 is embedded.

As shown in FIG. 3 , the inner wall of the housing 1 is provided with a limiting block 14 , and the two reflecting plates 10 are in contact with each other when the reflector 10 and the limiting block 14 collide.

The working principle of a bag-type dust collector uniform gas distribution device: when the bag-type dust collector is used to process dust-laden gas, the dust-laden gas enters the shell 1 from the air inlet 6, and the air inlet 6 is provided with a sloping plate 7, which can be used for cleaning the air. The intake airflow plays a buffering role, and at the same time removes some large particles of dust; an airflow reflector 10 is arranged at the junction of the ash collecting hopper 8 and the housing 1, and the airflow flows down the sloping plate 7 to the reflector 10, so that the airflow is uniform. It flows upward to prevent the airflow from generating eddy currents in the casing 1; two air outlets 12 are provided on both sides of the casing 1, and the clean gas treated by the filter bag 4 is discharged from the air outlets 12; the casing 1 is provided with a vibrating frame 2 When cleaning dust, the driving part 1 3 drives the vibrating frame 2 to reciprocate up and down to drive the filter bag 4 to vibrate together, so that the dust adsorbed in the filter bag 4 is vibrated. 10 is opened and closed, so that the dust in the filter bag 4 falls into the dust collecting hopper 8 under the reflector 10 .

Claims (6)

1. A uniform air distribution device for a bag filter, characterized in that it comprises a casing (1), a vibrating frame (2) arranged in the casing (1), and a vibrating frame (2) opposite to the vibrating frame (2). A plurality of filter bags (4) connected, a driving member (3) that drives the vibration frame (2) to reciprocate up and down, the bottom end of the filter bag (4) is connected with a flower plate (5), and the flower plate ( 5) An air inlet (6) is provided below, and several inclined plates (7) are arranged in parallel at the junction of the air inlet (6) with the casing (1), and two sides of the casing (1) are arranged in parallel. Two air outlets (12) are symmetrically arranged, an ash collecting hopper (8) is connected under the casing (1), and the ash collecting hopper (8) is connected with the casing (1) through a torsion spring (9) Two airflow reflection plates (10) are hingedly connected, and two driving members (13) for driving the reflection plates (10) to rotate. 2 . The uniform air distribution device for a bag filter according to claim 1 , wherein the first driving member ( 3 ) comprises a motor ( 31 ) fixed in the housing ( 1 ), a motor ( 31 ) connected to A cam (32) on the output shaft of the motor (31), the cam (32) is connected with the vibration frame (2). 3. A uniform air distribution device for a bag filter according to claim 1, characterized in that: the vibrating frame (2) comprises a support frame (21) located on the inner wall of the casing (1), fixed on the The spring (22) on the support frame (21), the vibration plate (23) connected to the upper end of the spring (22), the bottom surface of the vibration plate (23) is provided with a number of filter bags (4) corresponding to the Bumps (24). 4 . The uniform air distribution device for a bag filter according to claim 3 , wherein the second driving member ( 13 ) comprises two mutually symmetrical drivers connected to the vibrating plate ( 23 ). 5 . A rod (131), a limit ring (132) fixed on the inner wall of the housing (1) for the driving rod (131) to be embedded in, and the bottom end of the driving rod (131) is hinged to the reflector (10) superior. 5 . The uniform air distribution device for a bag filter according to claim 4 , wherein a limit block ( 14 ) is arranged on the inner wall of the casing ( 1 ), and the reflector ( 10 ) is connected to the limit block ( 14 ). 6 . When the blocks (14) collide, the two reflecting plates (10) are in contact. 6. The uniform air distribution device for a bag filter according to claim 1, wherein a plurality of baffles (11) perpendicular to the reflector (10) are provided on the reflector (10). .

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