A powder dust collecting device

Abstract

The utility model discloses a kind of powder dust collection devices, including central cloth bag dust removal cylinder, cyclone dust removal shell and outer back loop pipe, the top of the cyclone dust removal shell is equipped with central hole, the central cloth bag dust removal cylinder is inserted into the central hole, the outer back loop pipe is sleeved to the outside of the central cloth bag dust removal cylinder, the ring inside of the outer back loop pipe is connected to the cylinder wall of the central cloth bag dust removal cylinder by at least two ring inner branch pipes, the outside of the cyclone dust removal shell is installed with controller, the top of the central cloth bag dust removal cylinder is installed with cover, cloth bag hole disc is installed in the cylinder of the central cloth bag dust removal cylinder.It is beneficial to effect that: by multistage dust removal, dust removal effect and dust collection effect are better, increase separation effect, greatly reduce the occupation of site space, realize pulse to remove dust and carry out backflow treatment under non-stop state, reduce dust accumulation of cloth bag in use process, improve the dust removal and collection efficiency of device whole.

Description

Technical Field

[0001] This utility model relates to the field of dust collection and manufacturing, and in particular to a powder dust collection device. Background Technology

[0002] With the continuous development of modern industry, the requirements for dust removal systems are also getting higher and higher. In order to meet different needs, new dust removal equipment is emerging one after another. In industrial production, conventional dust removal equipment usually consists of a combination of cyclone separators and bag filters, which has been widely used. The existing combination of cyclone separators and bag filters is usually connected by pipes, which results in both occupying space and taking up a lot of space. In addition, bag filters need to be cleaned frequently during the dust removal process. Traditional pulse cleaning requires the dust removal system to be stopped for cleaning, thereby reducing the dust collection efficiency. Utility Model Content

[0003] The purpose of this invention is to provide a powder dust collection device to solve the above-mentioned problems.

[0004] This utility model achieves the above objectives through the following technical solutions:

[0005] A powder dust collection device includes a central bag filter cylinder, a cyclone dust collector housing, and an outer loop pipe. The cyclone dust collector housing has a central hole at its top, and the central bag filter cylinder is inserted into the central hole. The outer loop pipe is fitted onto the outside of the central bag filter cylinder, and the inner side of the outer loop pipe is connected to the cylinder wall of the central bag filter cylinder via at least two inner branch pipes. A controller is installed on the outside of the cyclone dust collector housing, and a [missing information - likely a device name or component] is installed on the top of the central bag filter cylinder. The cover body has a central bag filter cylinder with a bag perforated plate installed inside. Several tubular filter bags are installed on the bag perforated plate. A cyclone inlet pipe is installed on the top side of the cyclone dust collector housing. The outer loop pipe is connected to the cyclone inlet pipe through a return pipe. A return valve is installed on the return pipe. A pulse transmission pipe is provided inside the central bag filter cylinder above the bag perforated plate. One end of the pulse transmission pipe extends to the outside of the central bag filter cylinder and is connected to a pulse generation assembly.

[0006] Furthermore, the pulse transmission tube includes a main air tube, one end of which is installed on the perforated plate of the bag via a tube end fixing member. The main air tube has several pulse branch tubes, and the ends of the pulse branch tubes are inserted into the exhaust port at the top of the tubular bag.

[0007] Furthermore, the bag plate has several corresponding mounting holes, and the tubular bag is fixed in the mounting holes.

[0008] Furthermore, the cover body includes a fan-edge frame, and four fan covers are provided on the fan-edge frame. The fan covers are pressed onto the fan-edge frame by pressure plates.

[0009] Furthermore, the central bag filter cylinder is provided with an inspection hole, and an inspection door is installed on the outside of the inspection hole.

[0010] Furthermore, the cyclone dust collector housing consists of a cyclone cylinder shell and a bottom funnel shell installed at the bottom of the cyclone cylinder shell.

[0011] Furthermore, several ring-shaped bracket mounting parts are installed on the outer side of the cyclone dust collector housing, and reinforcing ribs are installed between the central bag dust collector cylinder and the cyclone dust collector housing.

[0012] Furthermore, an exhaust pipe is installed on the top side of the central bag filter cylinder.

[0013] The beneficial effects are as follows: The powder dust collection device described in this utility model has better dust removal and dust collection effects through multi-stage dust removal. The bag dust collection system is set in the central cylinder of the cyclone separation system, which increases the flow velocity at the inlet, increases the separation effect, and greatly reduces the space occupation. Pulse dust removal and reflux treatment are realized without stopping the machine, which reduces the dust accumulation of the bag during use and improves the overall dust removal and collection efficiency of the device. Attached Figure Description

[0014] Figure 1 This is a front view structural schematic diagram of the powder dust collection device described in this utility model;

[0015] Figure 2 This is a three-dimensional view of the structure of the powder dust collection device described in this utility model without its cover.

[0016] Figure 3 This is an internal schematic diagram of a powder dust collection device according to the present invention;

[0017] Figure 4 This is a structural diagram of the maintenance door of the powder and dust collection device described in this utility model;

[0018] Figure 5 This is a top view of the central bag filter cylinder of the powder dust collection device described in this utility model;

[0019] Figure 6 This is a structural diagram of the fan cover of the powder dust collection device described in this utility model;

[0020] Figure 7 This is a structural diagram of the pulse generation assembly of the powder dust collection device described in this utility model;

[0021] Figure 8 This is a structural diagram of the bracket mounting component of the powder dust collection device described in this utility model;

[0022] Figure 9 This is a structural diagram of pulse transmission tubes of different lengths for a powder dust collection device described in this utility model.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Central bag filter cylinder; 2. Cyclone dust collector housing, 201. Cyclone cylinder shell, 202. Bottom funnel shell; 3. Bag perforated plate; 4. Tubular filter bag; 5. Mounting hole; 6. Pulse transmission pipe, 601. Main air pipe, 602. Pulse branch pipe, 603. Pipe end fixing piece; 7. Pulse generation assembly; 8. Outer loop pipe; 9. Return pipe; 10. Inspection door; 11. Return valve; 12. Controller; 13. Cyclone inlet pipe; 14. Leg mounting piece; 15. Fan side frame; 16. Inner ring branch pipe; 17. Reinforcing rib; 18. Fan cover; 19. Pressure plate; 20. Handle; 21. Door fixing lug. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0026] The following is combined with Figures 1 to 9 The powder dust collection device provided in this embodiment will be further described as follows:

[0027] Please refer to Figure 1 This utility model provides a powder dust collection device, including a central bag filter cylinder 1, a cyclone dust collector shell 2, and an outer loop pipe 8. The top of the cyclone dust collector shell 2 is provided with a central hole, and the central bag filter cylinder 1 is inserted into the central hole. The outer loop pipe 8 is sleeved on the outside of the central bag filter cylinder 1 and is located above the cyclone dust collector shell 2. The inner side of the outer loop pipe 8 is connected to the cylinder wall of the central bag filter cylinder 1 through at least two inner ring branch pipes 16 to realize the gas flow between the pipe and the cylinder. A controller 12 is installed on the outside of the cyclone dust collector shell 2.

[0028] The top of the central bag filter cylinder 1 is equipped with a cover. Inside the central bag filter cylinder 1, a bag perforated plate 3 is installed. Several tubular filter bags 4 are installed on the bag perforated plate 3. The tubular filter bags 4 are the core structure of the existing bag filter. They are composed of an inner support mesh cylinder frame and filter bags sleeved on the outside of the support mesh cylinder frame. In this embodiment, the tubular filter bags 4 take in air from the outside. After the gas passes through, the filtered dust enters the pipe and is discharged from the top of the tubular filter bags 4.

[0029] A cyclone inlet pipe 13 is installed on the top side of the cyclone dust collector housing 2. The air inlet direction of the cyclone inlet pipe 13 is tangential to the cylinder ring cavity, so that the gas carrying dust enters and flows downward in a cyclone on the outside of the central bag dust collector 1. The outer return loop pipe 8 is connected to the cyclone inlet pipe 13 through the return pipe 9, and a return valve 11 is installed on the return pipe 9.

[0030] A pulse transmission tube 6 is provided inside the central bag dust collector 1 above the bag perforated plate 3. One end of the pulse transmission tube 6 extends to the outside of the central bag dust collector 1 and is connected to a pulse generating assembly 7. The pulse generating assembly 7 is a common structure of bag dust collectors. It is responsible for achieving pulse exhaust by compressing gas, which facilitates dust removal from the tubular bag 4 and reduces the accumulation of fine dust.

[0031] like Figures 1-9 As shown, embodiments of this utility model also disclose the following more optimized specific structures:

[0032] The pulse transmission tube 6 includes a main air tube 601. One end of the main air tube 601 is installed on the bag filter plate 3 through a tube end fixing member 603. Several pulse branch tubes 602 are provided on the tube body of the main air tube 601. The end of the pulse branch tube 602 is inserted into the exhaust port at the top of the tubular bag 4.

[0033] The bag plate 3 has several corresponding mounting holes 5, and the tubular bag 4 is fixed in the mounting holes 5.

[0034] The cover includes a fan side frame 15, and four fan covers 18 are provided on the fan side frame 15. The fan covers 18 are pressed onto the fan side frame 15 by pressure plates 19, and the pressure plates 19 are fixed to the fan side frame 15 by pins.

[0035] The central bag filter cylinder 1 is provided with an inspection hole, and an inspection door 10 is installed on the outside of the inspection hole. Specifically, door fixing lugs 21 are provided on both sides of the inspection door, and the door fixing lugs 21 are fixed by bolts.

[0036] The cyclone dust collector housing 2 consists of a cyclone casing 201 and a bottom funnel casing 202 installed at the bottom of the cyclone casing 201.

[0037] Several ring-shaped bracket mounting parts 14 are installed on the outside of the cyclone dust collector housing 2, and reinforcing ribs 17 are installed between the central bag dust collector cylinder 1 and the cyclone dust collector housing 2.

[0038] An exhaust pipe is installed on the top side of the central bag filter cylinder 1.

[0039] like Figures 1-9The powder dust collection device shown mainly collects gas containing powder dust after dust removal and discharges clean gas. It first enters the cyclone dust collector shell 2 through the cyclone inlet pipe 13 to achieve cyclone dust removal. Medium and large particles are collected through the bottom hopper after cyclone dust removal. Then, the gas with fine dust is filtered through the tubular bag 4 to further remove fine dust, thus achieving multi-stage dust removal. The bag dust removal system is set in the central cylinder of the cyclone separation system, which increases the flow velocity at the inlet, increases the separation effect, and greatly reduces the space occupied.

[0040] During the dust collection process, the pulse generator assembly 7 intermittently starts pulses to impact the tubular filter bag 4. At the same time, the return valve 11 opens, and the accumulated dust is re-entered into the cyclone inlet pipe 13 through the return pipe 9 along with the return gas for secondary cyclone dust removal. Furthermore, the pulse and return gas accelerate the inlet flow rate, increasing the dust removal effect. This achieves bag dust cleaning without stopping the cyclone separation process, reducing bag dust accumulation and improving the overall dust removal and collection efficiency of the device. After long-term use, the machine can also be stopped to thoroughly clean the accumulated dust using pulses. Overall, non-stop pulse cleaning can significantly reduce the dust accumulation rate.

[0041] Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of this utility model as claimed.

Claims

1. A powder dust collecting apparatus characterized by comprising: The system includes a central bag filter cylinder (1), a cyclone dust collector housing (2), and an outer loop pipe (8). The top of the cyclone dust collector housing (2) has a central hole, and the central bag filter cylinder (1) is inserted into the central hole. The outer loop pipe (8) is fitted onto the outside of the central bag filter cylinder (1). The inner side of the outer loop pipe (8) is connected to the cylinder wall of the central bag filter cylinder (1) through at least two inner ring branch pipes (16). A controller (12) is installed on the outside of the cyclone dust collector housing (2), and a cover is installed on the top of the central bag filter cylinder (1). (1) A bag filter plate (3) is installed inside the cylinder. Several tubular bags (4) are installed on the bag filter plate (3). A cyclone inlet pipe (13) is installed on the top side of the cyclone dust collector housing (2). The outer loop pipe (8) is connected to the cyclone inlet pipe (13) through the return pipe (9). A return valve (11) is installed on the return pipe (9). A pulse transmission pipe (6) is provided in the central bag dust collector cylinder (1) above the bag filter plate (3). One end of the pulse transmission pipe (6) extends to the outside of the central bag dust collector cylinder (1) and is connected to a pulse generation assembly (7).

2. A powder dust collecting apparatus according to claim 1, characterized in that: The pulse transmission tube (6) includes a main air tube (601). One end of the main air tube (601) is installed on the bag perforated plate (3) through a tube end fixing member (603). The main air tube (601) has several pulse branch tubes (602) on its tube body. The end of the pulse branch tube (602) is inserted into the top exhaust port of the tubular bag (4).

3. A powder dust collecting apparatus according to claim 1, characterized in that: The bag plate (3) is provided with several corresponding mounting holes (5), and the tubular bag (4) is fixed in the mounting holes (5).

4. The powder dust collecting device according to claim 1, characterized in that: The cover includes a fan side frame (15), and four fan covers (18) are provided on the fan side frame (15). The fan covers (18) are pressed onto the fan side frame (15) by a pressure plate (19).

5. The powder dust collecting device according to claim 1, characterized in that: The central bag filter cylinder (1) is provided with an inspection hole, and an inspection door (10) is installed on the outside of the inspection hole.

6. A powder dust collection device according to claim 1, characterized in that: The cyclone dust collector housing (2) consists of a cyclone shell (201) and a bottom funnel shell (202) installed at the bottom of the cyclone shell (201).

7. The powder dust collecting device according to claim 1, characterized in that: Several ring-shaped bracket mounting parts (14) are installed on the outside of the cyclone dust collector housing (2), and reinforcing ribs (17) are installed between the central bag dust collector cylinder (1) and the cyclone dust collector housing (2).

8. The powder dust collection device according to claim 1, characterized by: An exhaust pipe is installed on the top side of the central bag filter cylinder.

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