Filtering device of pulsed jet cloth filter

Abstract

The utility model discloses a filtering device of a pulse bag-type dust collector, relates to the technical field of structures of filtering devices of dust collectors, and aims to solve the problems that an existing filtering device cannot be conveniently detached and replaced after being used for a period of time, so that the filtering effect is influenced, and meanwhile, filtered dust is inconvenient to collect and is easy to scatter all around. A pulse device is installed on one side of the upper box body, an exhaust box is installed on the other side of the upper box body, a middle box body is installed below the upper box body, a filtering device is installed in the middle box body, a sealing box door is installed at one end of the middle box body, and an installation supporting frame is installed below the middle box body. A lower box body is arranged at the lower end of the middle box body, a conveying box is mounted below the lower box body, the filtering device comprises a filter screen frame, a filter bag and a fixing seat, the fixing seat is arranged at the upper end of the filter screen frame, the filter bag is mounted outside the filter screen frame, and a limiting mounting seat is arranged at the lower end of the fixing seat.

Description

Technical Field

[0001] The utility model relates to the technical field of the structure of a dust collector filtering device, in particular to a filtering device for a pulse bag dust collector. Background Technique

[0002] The pulse bag dust collector is a new type of high-efficiency pulse bag dust collector improved on the basis of the bag dust collector. The pulse bag dust collector is composed of a hopper, an upper box body, a middle box body, a lower box body, etc. Its working principle is as follows: the dust-containing gas enters the hopper from the air inlet duct, the coarse dust particles directly fall to the bottom of the hopper, and the fine dust particles turn upwards with the air flow and enter the middle and lower box bodies. The dust accumulates on the outer surface of the filter bag, and the filtered gas enters the upper box body to the clean gas collecting pipe - the exhaust duct, and is discharged to the atmosphere through the exhaust fan. The ash cleaning process is to first cut off the clean gas outlet duct of this chamber, so that the filter bags in this chamber are in a state without air flow (sectional stop-air ash cleaning), and then open the pulse valve to carry out pulse jet ash cleaning with compressed air. The closing time of the cut-off valve is sufficient to ensure that the dust peeled off from the filter bag after spraying settles to the hopper.

[0003] After retrieval, the authorized announcement number is CN217988671U. The utility model discloses a pulse bag dust collector device, including a support frame, four corners at the lower end of the support frame are fixedly connected with support columns, the upper end of the support frame is fixedly connected with a connection box, the front end of the connection box is fixedly connected with an observation window, the upper end of the connection box is fixedly connected with an upper cover, a main body device is fixedly connected inside the lower cover wall of the upper cover, a regulating device is fixedly connected to the middle of the upper end of the main body device, filter bags are fixedly connected to the left and right parts at the lower end of the connection box, and connection devices are fixedly connected to the left and right parts at the lower end of the support frame. For the pulse bag dust collector device of the utility model, by arranging a regulating device and a main body device on the whole device, the dust can be processed in sections, the pulse air flow can be adjusted, the power loss can be reduced, the overall dust removal efficiency and effect can be significantly improved, and the working efficiency is improved.

[0004] However, after the existing filtering device is used for a period of time, it cannot be conveniently disassembled and replaced, which will affect the filtering effect. At the same time, the filtered dust is not convenient to collect and is prone to scattering. Therefore, there is an urgent need for a filtering device for a pulse bag dust collector in the market to solve these problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a filtering device for a pulse bag dust collector to solve the problems in the above-mentioned background technique that the existing filtering device cannot be conveniently disassembled and replaced after being used for a period of time, which will affect the filtering effect, and at the same time, the filtered dust is not convenient to collect and is prone to scattering.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A filtering device for a pulse bag dust collector, including an upper box body, a pulse device is installed on one side of the upper box body, an exhaust box is installed on the other side of the upper box body, a middle box body is installed below the upper box body, a filtering device is installed inside the middle box body, a sealing box door is installed at one end of the middle box body, an installation support frame is installed below the middle box body, a lower box body is arranged at the lower end of the middle box body, a conveying box is installed below the lower box body, the filtering device includes a filter screen frame, filter bags and fixing seats, a fixing seat is arranged at the upper end of the filter screen frame, filter bags are installed outside the filter screen frame, and a limiting installation seat is arranged at the lower end of the fixing seat.

[0007] Preferably, a solenoid valve is installed at the upper end of the pulse device, there are several solenoid valves, and several solenoid valves are distributed in sequence at the upper end of the pulse device.

[0008] Preferably, the installation support frame is welded to the middle box body.

[0009] Preferably, a motor is installed at one end of the conveying box, and a spiral conveying blade corresponding to the motor is installed inside the conveying box.

[0010] Preferably, longitudinal reinforcing ribs are installed inside the filter screen frame, a transverse reinforcing rib is installed at one end of the longitudinal reinforcing ribs, there are several longitudinal reinforcing ribs, the longitudinal reinforcing ribs are welded to the filter screen frame, and the transverse reinforcing rib is welded to the longitudinal reinforcing ribs.

[0011] Preferably, fixing threads are arranged around the outer wall of the fixing seat, a fixing end is arranged at the lower end of the fixing seat, and a fixing screw hole is arranged inside the fixing end.

[0012] Preferably, a limiting installation groove is arranged inside the limiting installation seat, an installation end is arranged at the upper end of the filter bag, the installation end is located inside the limiting installation groove, and the installation end and the limiting installation seat are fixedly connected by fixing screws.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] 1. For this filtering device of the pulse bag dust collector, the filtering device is provided with a fixing seat, the fixing seat is provided with fixing threads and the fixing end is provided with a fixing screw hole, so that it can be convenient and firm to install and fix the filtering device to the middle box body. After using for a period of time, the filtering device can be conveniently disassembled, so that the filtering device can be conveniently disassembled and cleaned. By loosening the fixing screws, the filter bags can be conveniently disassembled and replaced, so that the use effect of the filtering device is better.

[0015] 2. When the filtration device of this pulse bag filter filters the dust in the gas, when the dust adheres to the outside of the filtration device, by turning on the pulse device to generate an air flow, the filtration device can be impacted, so that the adhered dust falls into the lower box body, and then enters the inside of the conveying box through the lower box body. Then, by turning on the motor, the spiral conveying blade conveys the accumulated dust, thus avoiding the situation of dust scattering everywhere. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is the overall front view of the present utility model;

[0017] Figure 2 is the cross-sectional view of the filtration device of the present utility model;

[0018] Figure 3 is of the present utility model Figure 1 partial enlarged view of Area A;

[0019] Figure 4 is of the present utility model Figure 2 partial enlarged view of Area B.

[0020] In the figure: 1, upper box body; 2, pulse device; 3, solenoid valve; 4, exhaust box; 5, middle box body; 6, filtration device; 7, sealed box door; 8, installation support frame; 9, lower box body; 10, conveying box; 11, motor; 12, spiral conveying blade; 13, filter mesh frame; 1301, longitudinal reinforcing rib; 1302, transverse reinforcing rib; 14, filter bag; 1401, installation end; 15, fixed seat; 1501, fixed thread; 1502, fixed end; 1503, fixed screw hole; 16, limit installation seat; 1601, limit installation groove; 17, fixed screw. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the 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 embodiments.

[0022] Please refer to Figures 1-4, An embodiment provided by the present utility model: A filtering device for a pulse bag filter, comprising an upper box body 1, a pulse device 2 is installed on one side of the upper box body 1, an exhaust box 4 is installed on the other side of the upper box body 1, a middle box body 5 is installed below the upper box body 1, a filtering device 6 is installed inside the middle box body 5, a sealing box door 7 is installed at one end of the middle box body 5, an installation support frame 8 is installed below the middle box body 5, a lower box body 9 is provided at the lower end of the middle box body 5, a conveying box 10 is installed below the lower box body 9, and the filtering device 6 includes a filter screen frame 13, a filter bag 14 and a fixing seat 15. A fixing seat 15 is provided at the upper end of the filter screen frame 13, a filter bag 14 is installed outside the filter screen frame 13, and a limiting installation seat 16 is provided at the lower end of the fixing seat 15. It should be noted that, in order to save space and highlight the innovative elements of this patent, such as the specific working principle and process of the pulse device, and the process of dust cleaning through the pulse device, will not be elaborated in this patent.

[0023] During use, the filter bag 14 can be conveniently disassembled and replaced by loosening the fixing screws 17, so that the filtering device 6 has a better use effect. During the use process, the filtering device 6 can filter the dust in the gas. When the dust adheres to the outside of the filtering device 6, by turning on the pulse device 2 to generate an air flow, the filtering device 6 can be impacted, so that the adhered dust falls into the lower box body 9, and then enters the inside of the conveying box 10 through the lower box body 9. Then, by turning on the motor 11, the spiral conveying blade 12 conveys the accumulated dust.

[0024] Please refer to Figure 1 , An electromagnetic valve 3 is installed at the upper end of the pulse device 2. There are several electromagnetic valves 3, and several electromagnetic valves 3 are distributed in sequence at the upper end of the pulse device 2. Through this setting, the filtering device 6 can be pulsed, so that the adhered dust on the filtering device 6 can fall off, and the filtering device 6 can be used better.

[0025] Please refer to Figure 1 , The installation support frame 8 is welded to the middle box body 5, which can make the structure between the installation support frame 8 and the filtering device 6 more firm. Through the provided installation support frame 8, the device can be conveniently supported.

[0026] Please refer to Figure 1 and Figure 3 , A motor 11 is installed at one end of the conveying box 10, and a spiral conveying blade 12 corresponding to the motor 11 is installed inside the conveying box 10. By turning on the motor 11, the spiral conveying blade 12 can rotate, so that the accumulated dust can be conveyed to avoid the situation of dust scattering.

[0027] Please refer to Figure 2, longitudinally reinforcing ribs 1301 are installed inside the filter screen frame 13. One end of the longitudinally reinforcing rib 1301 is installed with a laterally reinforcing rib 1302. There are several longitudinally reinforcing ribs 1301, and the longitudinally reinforcing ribs 1301 are welded to the filter screen frame 13, and the laterally reinforcing rib 1302 is welded to the longitudinally reinforcing rib 1301, which can improve the overall structural strength of the filter screen frame 13, so that the filter bag 14 can be supported conveniently.

[0028] Please refer to Figure 2 and Figure 4 , fixing threads 1501 are provided around the outer wall of the fixing seat 15, a fixing end 1502 is provided at the lower end of the fixing seat 15, and a fixing screw hole 1503 is provided inside the fixing end 1502. Through this setting, the fixing seat 15 can be installed and fixed conveniently.

[0029] Please refer to Figure 2 and Figure 4 , a limiting installation groove 1601 is provided inside the limiting installation seat 16. An installation end 1401 is provided at the upper end of the filter bag 14. The installation end 1401 is located inside the limiting installation groove 1601. The installation end 1401 and the limiting installation seat 16 are fixedly connected by fixing screws 17. Through the fixing screws 17, the installation end 1401 and the limiting installation seat 16 can be installed and fixed conveniently, so that the filter bag 14 can be disassembled and cleaned conveniently.

[0030] Working principle: When in use, the filter device 6 is provided with a fixing seat 15. The fixing seat 15 is provided with fixing threads 1501 and the fixing screw hole 1503 is provided inside the fixing end 1502. In this way, the filter device 6 and the middle box body 5 can be installed and fixed firmly and conveniently. After using for a period of time, the filter device 6 can be disassembled conveniently, so that the filter device 6 can be disassembled and cleaned conveniently. By loosening the fixing screws 17, the filter bag 14 can be disassembled and replaced conveniently, so that the use effect of the filter device 6 is better. During the use process, the filter device 6 can filter the dust in the gas. When the dust adheres to the outside of the filter device 6, by turning on the pulse device 2 to generate an air flow, the filter device 6 can be impacted, so that the adhered dust falls into the lower box body 9, and then enters the inside of the conveying box 10 through the lower box body 9. Then, by turning on the motor 11, the spiral conveying blades 12 convey the accumulated dust, so as to avoid the situation of dust scattering.

[0031] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A pulse bag filter filter device, comprising an upper box (1), characterized in that: A pulse device (2) is installed on one side of the upper box body (1), an exhaust box (4) is installed on the other side of the upper box body (1), a middle box body (5) is installed below the upper box body (1), a filter device (6) is installed inside the middle box body (5), a sealed box door (7) is installed at one end of the middle box body (5), a mounting support frame (8) is installed below the middle box body (5), a lower box body (9) is arranged at the lower end of the middle box body (5), a conveying box (10) is installed below the lower box body (9), the filter device (6) comprises a filter frame (13), a filter bag (14) and a fixing seat (15), a fixing seat (15) is arranged at the upper end of the filter frame (13), a filter bag (14) is installed outside the filter frame (13), and a limited position mounting seat (16) is arranged at the lower end of the fixing seat (15).

2. A pulse bag filter filter device according to claim 1, characterized in that: An electromagnetic valve (3) is installed at the upper end of the pulse device (2), and a plurality of the electromagnetic valves (3) are provided, and the plurality of the electromagnetic valves (3) are distributed in sequence at the upper end of the pulse device (2).

3. A pulse bag filter filter device according to claim 2, characterized in that: The mounting support frame (8) is connected to the middle box body (5) by welding.

4. A pulse bag filter filter device according to claim 3, characterized in that: A motor (11) is installed at one end of the conveying box (10), and a spiral conveying blade (12) corresponding to the motor (11) is installed inside the conveying box (10).

5. A pulse bag filter filter device according to claim 4, characterized in that: A longitudinal reinforcing rib (1301) is installed inside the filter frame (13), and a transverse reinforcing rib (1302) is installed at one end of the longitudinal reinforcing rib (1301). A plurality of longitudinal reinforcing ribs (1301) are provided, and the longitudinal reinforcing rib (1301) is welded to the filter frame (13), and the transverse reinforcing rib (1302) is welded to the longitudinal reinforcing rib (1301).

6. A pulse bag filter filter device according to claim 5, characterized in that: The outer wall of the fixing seat (15) is provided with fixing threads (1501) around it, the lower end of the fixing seat (15) is provided with a fixing end (1502), and the interior of the fixing end (1502) is provided with a fixing screw hole (1503).

7. A pulse bag filter filter device according to claim 6, characterized in that: A limiting mounting groove (1601) is provided inside the limiting mounting seat (16), and a mounting end (1401) is provided at the upper end of the filter bag (14), the mounting end (1401) is located inside the limiting mounting groove (1601), and the mounting end (1401) is fixedly connected to the limiting mounting seat (16) via a fixing screw (17).

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