Double-layer composite filtering bag-type dust collector

Abstract

The utility model relates to the technical field of filtering equipment, and particularly discloses a double-layer composite filtering bag-type dust collector which comprises a collecting box and a protective cover arranged at the upper end of the collecting box, an air inlet pipe and an air outlet pipe are respectively arranged in the middle of one side of the collecting box and at the upper end of one side of the protective cover, and a partition plate is fixed at the upper end in the collecting box. A circulating cavity and a collecting cavity are formed in the upper side and the lower side of the partition plate correspondingly; a plurality of first mounting cylinders and second mounting cylinders are arranged on the upper surface of the collecting box; according to the utility model, the two filter bags with different filter precisions are arranged, so that the dust remover has a two-stage filter treatment effect when in use, namely, dust can be more effectively filtered, and the defect that the filter effect is poorer due to the fact that only one-stage filter cloth bag is arranged in the traditional scheme is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to a double-layer composite filtering bag dust collector. Background Art

[0002] The bag filter is a dry dust filter device, which is suitable for collecting fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter dust-containing gas.

[0003] For example, a bag dust collector with the existing application number: 202321368370.1 includes a rectangular box, a cover plate is fixedly connected to the surface of the rectangular box by bolts, a rectangular plate is slidably connected to the inside of the rectangular box, a bag is inserted into the surface of the rectangular plate, a disc is fixedly connected to one side of the surface of the bag, a gasket is fixedly connected to the surface of the disc through a fixing bolt that penetrates the rectangular plate, a cylinder is installed inside the rectangular box, one end of the cylinder is fixedly connected to a push rod, one end of the push rod is fixedly connected to a connecting rod, and one side of the connecting rod is fixedly connected to a bracket.

[0004] When the bag dust collector proposed by the above technology is in use, although the brush that can move up and down is set on the outside of the bag to achieve the effect of cleaning the outside of the bag to a certain extent, it still has certain limitations in actual use. For example, the bags arranged inside are not graded, so that the dust collector can only perform one layer of filtering treatment when in use, that is, it cannot have multi-layer filtering treatment; therefore, in order to solve the above technical problems, we proposed a double-layer composite filter bag dust collector. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a double-layer composite filter bag dust collector.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A double-layer composite filter bag dust collector comprises a collecting box and a protective cover arranged at the upper end of the collecting box, an air inlet pipe and an air outlet pipe are respectively installed at the middle of one side of the collecting box and the upper end of one side of the protective cover, a partition plate is fixed at the upper end of the inner part of the collecting box, the upper and lower sides of the partition plate are a flow chamber and a collecting chamber respectively, a plurality of first mounting cylinders and a second mounting cylinder are arranged on the upper surface of the collecting box, a sealing cylinder is arranged at the upper end of the first mounting cylinder, a connecting pipe is arranged inside the first mounting cylinder through a supporting frame, a primary filter bag is installed at the upper end of the connecting pipe, a plurality of tubular connecting protrusions are arranged on the plate body of the partition plate, the upper ends of the connecting protrusions abut against the lower end of the connecting pipe, and a secondary filter bag is installed at the upper end of the second mounting cylinder.

[0008] Preferably, the first mounting cylinder and the second mounting cylinder are threadedly connected to the upper end wall of the collecting box, and a rotating cylinder is rotatably installed on the inner side of the first mounting cylinder and the second mounting cylinder. The sealing cylinder and the secondary filter bag are connected to the first mounting cylinder and the second mounting cylinder through the rotating cylinder, and the support frame is cross-shaped and fixed inside the rotating cylinder corresponding to the sealing cylinder.

[0009] Preferably, the outer ring surface of the upper end of the sealing cylinder is sleeved with a stabilizing frame, and a plurality of locking bolts are provided on the frame body of the stabilizing frame, and one end of the locking bolts abuts against the outer ring surface of the sealing cylinder.

[0010] Preferably, a limiting column is provided on the upper surface of the stabilizing frame, a limiting cylinder is provided on the outer annular surface sliding sleeve of the limiting column, and the upper end of the limiting cylinder is fixed to the top of the inner wall of the protective cover.

[0011] Preferably, a first magnetic block is installed at the upper end of the secondary filter bag, and the upper surface of the first magnetic block is adsorbed on the lower surface of the stabilizing frame.

[0012] Preferably, a second magnetic block is installed at the upper end of the primary filter bag, and the upper surface of the second magnetic block is adsorbed on the top of the inner wall of the sealing cylinder.

[0013] Preferably, the front wall of the collection box is provided with mounting grooves corresponding to the flow cavity and the collection cavity, a sealing door is installed in the mounting groove, and an observation window is provided in the middle of the sealing door.

[0014] The double-layer composite filter bag dust collector proposed by the utility model has the following beneficial effects:

[0015] 1: In the utility model, the medium flows along the air inlet pipe 3, the connecting protrusion 14, the primary filter bag 13, the sealing cylinder 10, the flow chamber 6, the secondary filter bag 15, the protective cover 2 and the air outlet pipe 4, and in this process, the heavier dust and other impurities sink to the lower end of the collecting chamber under the action of gravity for collection, and the light large-diameter impurities are filtered in the primary filter bag, and the light small-diameter impurities are filtered in the secondary filter bag, thereby completing the dust filtering treatment of the medium; in summary, in this scheme, by setting two filter bags with different filtering accuracies, the dust collector can have a two-stage filtering treatment effect when in use, that is, the dust can be filtered more effectively, thereby solving the defect of poor filtering effect caused by only setting a primary filter bag in the traditional scheme.

[0016] 2: In the utility model, since the first mounting cylinder and the second mounting cylinder are connected to the upper end wall of the collection box by threads, it is convenient for personnel to install and disassemble the mounting cylinders, and the setting of the rotating cylinder makes it easy to avoid the synchronous rotation of the filter bags when the mounting cylinder is rotated, thereby avoiding the phenomenon that the filter bags rotate and cause them to bend and fold, affecting the subsequent filtering effect; the setting of the stabilizing frame and the limiting column and the limiting cylinder enables the stabilizing frame to be connected to the protective cover, thereby further improving the stability of the sealing cylinder; the setting of the first magnetic block and the second magnetic block facilitates the restraint and fixation of the upper ends of the secondary filter bag and the primary filter bag, thereby facilitating the dust filtered in the filter bag to fall downward when the machine is shut down; the setting of the sealing door facilitates personnel to collect the filtered dust, and the setting of the observation window facilitates personnel to observe the amount of dust filtered in the collection box. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an external schematic diagram of a double-layer composite filter bag dust collector proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the structure of a double-layer composite filter bag dust collector proposed by the utility model;

[0019] Figure 3 This is an enlarged schematic diagram of point A of a double-layer composite filter bag dust collector proposed by the utility model;

[0020] Figure 4 A schematic diagram of the coordination of a primary filter bag and a secondary filter bag of a double-layer composite filter bag dust collector proposed by the utility model;

[0021] Figure 5 This is a schematic diagram of the cooperation between a primary filter bag and a first mounting cylinder of a double-layer composite filter bag dust collector proposed by the utility model.

[0022] In the figure: 1. collecting box; 2. protective cover; 3. air inlet pipe; 4. air outlet pipe; 5. partition plate; 6. circulation chamber; 7. collecting chamber; 8. first mounting cylinder; 9. second mounting cylinder; 10. sealing cylinder; 11. supporting frame; 12. connecting pipe; 13. primary filter bag; 14. connecting protrusion; 15. secondary filter bag; 16. rotating cylinder; 17. stabilizing frame; 18. limiting column; 19. limiting cylinder; 20. first magnetic block; 21. second magnetic block; 22. sealing door. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] Reference Figure 1-5 , a double-layer composite filter bag dust collector comprises a collecting box 1 and a protective cover 2 arranged at the upper end of the collecting box 1, an air inlet pipe 3 and an air outlet pipe 4 are respectively installed at the middle part of one side of the collecting box 1 and the upper end of one side of the protective cover 2, the air inlet pipe 3 is used to transport the gas to be purified to the dust collector proposed in this scheme, and the air outlet pipe 4 is used to output the refined gas to the outside, a partition plate 5 is fixed to the upper end of the inner part of the collecting box 1, and the upper and lower sides of the partition plate 5 are respectively a flow chamber 6 and a collecting chamber 7, a plurality of first mounting cylinders 8 and a second mounting cylinder 9 are arranged on the upper surface of the collecting box 1, a sealing cylinder 10 is arranged at the upper end of the first mounting cylinder 8, a connecting pipe 12 is arranged inside the first mounting cylinder 8 through a supporting frame 11, a primary filter bag 13 is installed at the upper end of the connecting pipe 12, a plurality of tubular connecting protrusions 14 are arranged on the plate body of the partition plate 5, the upper end of the connecting protrusion 14 is abutted against the lower end of the connecting pipe 12, a secondary filter bag 15 is installed at the upper end of the second mounting cylinder 9, and the filtering accuracy of the secondary filter bag 15 is greater than that of the primary filter bag 13.

[0026] Example 2

[0027] Reference Figure 1-5 , when other parts are the same as those in Example 1, the difference between this embodiment and Example 1 is that:

[0028] The first mounting cylinder 8 and the second mounting cylinder 9 are connected to the upper end wall of the collecting box 1 by threads, and a rotating cylinder 16 is rotatably installed inside the first mounting cylinder 8 and the second mounting cylinder 9. The sealing cylinder 10 and the secondary filter bag 15 are connected to the first mounting cylinder 8 and the second mounting cylinder 9 through the rotating cylinder 16, and the support frame 11 is cross-shaped and fixed inside the rotating cylinder 16 corresponding to the sealing cylinder 10. Since the first mounting cylinder 8 and the second mounting cylinder 9 are connected to the upper end wall of the collecting box 1 by threads, it is convenient for personnel to install and disassemble the mounting cylinders, and the setting of the rotating cylinder 16 makes it easy to avoid the synchronous rotation of the filter bags when the mounting cylinders are rotated, thereby avoiding the bending and folding of the filter bags due to the rotation, which affects the subsequent The filtering effect is improved; the outer annular surface of the upper end of the sealing cylinder 10 is jointly sleeved with a stabilizing frame 17, and a plurality of locking bolts are provided on the frame body of the stabilizing frame 17, one end of the locking bolts abuts against the outer annular surface of the sealing cylinder 10. The setting of the stabilizing frame 17 improves the stability of the upper end of each sealing cylinder 10, and the setting of the locking bolts facilitates the disassembly and assembly of the stabilizing frame 17 and prevents the stabilizing frame 17 from falling off by itself; a limiting column 18 is provided on the upper surface of the stabilizing frame 17, and a limiting cylinder 19 is slidingly sleeved on the outer annular surface of the limiting column 18, and the upper end of the limiting cylinder 19 is fixed to the top of the inner wall of the protective cover 2, and the setting of the limiting column 18 and the limiting cylinder 19 enables the stabilizing frame 17 to be connected to the protective cover 2, thereby further improving the stability of the sealing cylinder 10.

[0029] A first magnetic block 20 is installed at the upper end of the secondary filter bag 15, and the upper surface of the first magnetic block 20 is adsorbed on the lower surface of the stabilizing frame 17. A second magnetic block 21 is installed at the upper end of the primary filter bag 13, and the upper surface of the second magnetic block 21 is adsorbed on the top of the inner wall of the sealing tube 10. The setting of the first magnetic block 20 and the second magnetic block 21 is convenient for restraining and fixing the upper ends of the secondary filter bag 15 and the primary filter bag 13, so as to facilitate the dust filtered in the filter bag to fall downward during subsequent shutdown; the front side wall of the collection box 1 is provided with installation grooves corresponding to the flow cavity 6 and the collection cavity 7, and a sealing door 22 is installed in the installation groove, and an observation window is provided in the middle of the sealing door 22. The setting of the sealing door 22 is convenient for personnel to collect the filtered dust, and the setting of the observation window is convenient for personnel to observe the amount of dust filtered out of the collection box 1.

[0030] Principle and advantages of use: During use of the utility model, the external gas medium to be purified enters the collecting chamber 7 at the lower end of the collecting box 1 through the air inlet pipe 3. At this time, the heavier impurities such as dust in the medium sink to the lower end of the collecting chamber 7 under the action of gravity for collection, while the lighter impurities flow along the gas into the connecting protrusion 14 and then enter the connecting pipe 12. Further, the medium containing light impurities enters the primary filter bag 13 from the connecting pipe 12 and then diffuses between the primary filter bag 13 and the sealing cylinder 10. In this process, the large-diameter impurities of the light impurities are filtered in the primary filter bag 13, that is, the filtering process is realized at this time.

[0031] At the same time, in the above process, the medium with large diameter impurities filtered out flows downward along the inner wall of the sealing cylinder 10 until it enters the circulation chamber 6 through the corresponding rotating cylinder 16. At this time, the medium containing lightweight small diameter impurities enters the secondary filter bag 15 along the circulation chamber 6, and finally diffuses to the inside of the protective cover 2 through the secondary filter bag 15. In this process, the lightweight small diameter impurities in the medium are filtered in the secondary filter bag 15, and the medium that has been filtered through two layers flows out from the protective cover 2 along the exhaust pipe 4 to the outside, thereby completing the dust filtering treatment of the medium; in summary, in this scheme, by setting two filter bags with different filtering accuracies, the dust collector can have a two-stage filtering treatment effect when in use, that is, it can filter dust more effectively, thereby solving the defect of poor filtering effect caused by only setting one-stage filter bag in the traditional scheme.

[0032] It should be further explained that, since the first mounting cylinder 8 and the second mounting cylinder 9 are connected to the upper end wall of the collecting box 1 by threads, it is convenient for personnel to install and disassemble the mounting cylinders, and the setting of the rotating cylinder 16 makes it easy to avoid the synchronous rotation of the filter bags when the mounting cylinders are rotated, thereby avoiding the phenomenon that the filter bags rotate and cause them to bend and fold, affecting the subsequent filtering effect; the setting of the stabilizing frame 17 and the limiting column 18 and the limiting cylinder 19 enables the stabilizing frame 17 to be connected to the protective cover 2, which further improves the stability of the sealing cylinder 10; the setting of the first magnetic block 20 and the second magnetic block 21 facilitates the restraint and fixation of the upper ends of the secondary filter bag 15 and the primary filter bag 13, so as to facilitate the dust filtered in the filter bag to fall downward when the machine is shut down; the setting of the sealing door 22 facilitates the collection of filtered dust by personnel, and the setting of the observation window facilitates the amount of dust filtered out of the collecting box 1.

[0033] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A double-layer composite filter bag dust collector, comprising a collecting box (1) and a protective cover (2) arranged at the upper end of the collecting box (1), characterized in that: An air inlet pipe (3) and an air outlet pipe (4) are respectively installed at the middle of one side of the collecting box (1) and the upper end of one side of the protective cover (2); a partition plate (5) is fixed at the upper end of the collecting box (1); the upper and lower sides of the partition plate (5) are respectively a flow chamber (6) and a collecting chamber (7); a plurality of first installation cylinders (8) and a second installation cylinder (9) are provided on the upper surface of the collecting box (1); a sealing cylinder (10) is provided at the upper end of the first installation cylinder (8); a connecting pipe (12) is provided inside the first installation cylinder (8) through a support frame (11); a primary filter bag (13) is installed at the upper end of the connecting pipe (12); a plurality of tubular connecting protrusions (14) are provided on the plate body of the partition plate (5); the upper ends of the connecting protrusions (14) are in contact with the lower end of the connecting pipe (12); and a secondary filter bag (15) is installed at the upper end of the second installation cylinder (9).

2. A double-layer composite filter bag dust collector according to claim 1, characterized in that: The first mounting cylinder (8) and the second mounting cylinder (9) are threadedly connected to the upper end wall of the collecting box (1); a rotating cylinder (16) is rotatably mounted inside the first mounting cylinder (8) and the second mounting cylinder (9); the sealing cylinder (10) and the secondary filter bag (15) are connected to the first mounting cylinder (8) and the second mounting cylinder (9) via the rotating cylinder (16); and the supporting frame (11) is cross-shaped and fixed inside the rotating cylinder (16) corresponding to the sealing cylinder (10).

3. A double-layer composite filter bag dust collector according to claim 1, characterized in that: The outer ring surface of the upper end of the sealing cylinder (10) is sleeved with a stabilizing frame (17), and a plurality of locking bolts are arranged on the frame body of the stabilizing frame (17), one end of the locking bolts abuts against the outer ring surface of the sealing cylinder (10).

4. A double-layer composite filter bag dust collector according to claim 3, characterized in that: The upper surface of the stabilizing frame (17) is provided with a limiting column (18), the outer ring surface sliding sleeve of the limiting column (18) is provided with a limiting cylinder (19), and the upper end of the limiting cylinder (19) is fixed to the top of the inner wall of the protective cover (2).

5. A double-layer composite filter bag dust collector according to claim 4, characterized in that: A first magnetic block (20) is installed at the upper end of the secondary filter bag (15), and the upper surface of the first magnetic block (20) is adsorbed on the lower surface of the stabilizing frame (17).

6. A double-layer composite filter bag dust collector according to claim 1, characterized in that: A second magnetic block (21) is installed at the upper end of the primary filter bag (13), and the upper surface of the second magnetic block (21) is adsorbed on the top of the inner wall of the sealing cylinder (10).

7. A double-layer composite filter bag dust collector according to claim 1, characterized in that: The front wall of the collection box (1) is provided with mounting grooves corresponding to the flow chamber (6) and the collection chamber (7), a sealing door (22) is installed in the mounting groove, and an observation window is provided in the middle of the sealing door (22).

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