Bag type dust collector

Abstract

The utility model relates to the technical field of dust removal equipment, and provides a bag type dust remover, which comprises a shell and a partition plate arranged in the shell, the partition plate divides an inner cavity of the shell into a clean area and a filter area which are arranged up and down, a cage frame is arranged on one side of the partition plate positioned on the filter area, and a filter bag is sleeved outside the cage frame. Upper round holes are distributed in the upper partition plate, lower round holes are distributed in the lower partition plate, the upper round holes and the lower round holes directly face each other one by one, cage frames are mounted at the upper round holes of the upper partition plate respectively, filter bags are mounted at the lower round holes of the lower partition plate respectively, and the bottoms of the cage frames are connected with the bottoms of the filter bags; the bag type dust collector further comprises a lifting driving mechanism, and the lifting driving mechanism is used for driving the upper partition plate and the cage frame to move upwards. The device overcomes the defects in the prior art, is reasonable in design and convenient to use, and solves the technical problem that the dust cleaning effect of the upper end and the lower end of the filter bag is poor in the existing pulse type blowing dust cleaning process.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal equipment, in particular to a bag type dust collector. Background Art

[0002] The existing bag filter uses a blowpipe to blow compressed gas into the filter bag, causing the filter bag to expand and vibrate, causing the dust covering the surface of the filter bag to fall off. However, during the expansion of the filter bag, the expansion amplitude of each vertical area is inconsistent. The expansion amplitude of the middle section of the filter bag, that is, the middle area of ​​the filter bag in the vertical direction, is greater than the expansion amplitude of the upper and lower ends of the filter bag, so the dust cleaning effect of the upper and lower ends of the filter bag is not good.

[0003] For this purpose, we propose a bag dust collector. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies of the prior art, the utility model provides a bag dust collector, which overcomes the deficiencies of the prior art, has a reasonable design, is easy to use, and solves the technical problem of poor cleaning effects at the upper and lower ends of the filter bag in the prior pulse jet cleaning.

[0006] (II) Technical solution

[0007] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0008] A bag dust collector comprises a shell and a partition installed in the shell, wherein the partition divides the inner cavity of the shell into a clean area and a filter area arranged up and down, and a cage is installed on one side of the partition located in the filter area, and a filter bag is arranged outside the cage, and the characteristics are:

[0009] The partition includes an upper partition and a lower partition, the upper partition is provided with upper circular holes, the lower partition is provided with lower circular holes, the upper circular holes and the lower circular holes are directly opposite to each other, a cage is installed at each upper circular hole of the upper partition, a filter bag is installed at each lower circular hole of the lower partition, and the bottom of the cage is connected to the bottom of the filter bag;

[0010] The bag dust collector also includes a lifting drive mechanism, which is used to drive the upper partition plate and the cage frame to move upward.

[0011] Furthermore, the outer shell includes a shell and an end cover installed at the opening of the upper end of the shell. The shell is mainly composed of a rectangular box body and a conical ash hopper connected from top to bottom. The bottom of the side wall of the rectangular box body is provided with a smoke inlet, and the top of the side wall is provided with a smoke outlet. The conical ash hopper is circumferentially installed with supporting feet.

[0012] Furthermore, the filter bag includes a bag body and a first connecting ring installed on the upper opening of the bag body. The first connecting ring is attached to the bottom surface of the lower partition and is detachably connected to the lower partition by bolts. The first connecting ring surrounds the lower circular hole.

[0013] Furthermore, the cage frame includes support rings spaced apart from top to bottom, support rods installed circumferentially of the support rings, a second connecting ring coaxial with the support rings and detachable from the tops of the support rods, a cross rib is installed in the bottom support ring, the middle of the bottom wall of the bag body is detachably connected to the middle part of the cross rib by bolts, the second connecting ring is attached to the top surface of the upper partition and is detachably connected to the upper partition by bolts, and the second connecting ring surrounds the outside of the upper circular hole.

[0014] Furthermore, a step is protruding upward in the middle of the bottom of the bag body, and the step fits with the middle part of the cross rib.

[0015] Furthermore, the lifting drive mechanism includes a lifting drive unit, a lifting plate and guide columns, the lifting drive unit is installed on the end cover, the output end of the lifting drive unit extends upward and is connected to the lifting plate, at least one pair of guide columns are connected to both sides of the lifting plate, and the guide columns penetrate downward through the end cover and are connected to the partition.

[0016] (III) Beneficial effects

[0017] The embodiment of the utility model provides a bag dust collector. It has the following beneficial effects: during the process of the cage frame rising, the bottom of the filter bag will be driven to rise synchronously, and the side wall of the filter bag, including the upper end and the lower end of the side wall, will be folded, wrinkled, and deformed, so that the dust on the surface of the filter bag will be loosened, separated, and fall off; at the same time, under the effect of the original pulse jet cleaning technology, these folded and wrinkled areas will expand and vibrate more during the expansion process of the filter bag than before, thereby improving the cleaning effect of the upper and lower ends of the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the explosion structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the main structure of the utility model;

[0020] Figure 3 It is a cross-sectional schematic diagram of the utility model;

[0021] Figure 4 for Figure 3 The structural schematic diagram after partial enlargement of A in the middle;

[0022] Figure 5 for Figure 3 Schematic diagram of the structure after partial enlargement of point B in the middle.

[0023] In the figure: 1. Shell; 1a. Rectangular box; 1b. Smoke inlet; 1c. Smoke outlet; 1d. Conical ash hopper; 2. Filter bag; 2a. Bag body; 2b. First connecting ring; 2c. Step; 3. Lower partition; 4. Cage; 4a. Support rod; 4b. Support ring; 4c. Second connecting ring; 4d. Cross rib; 5. Upper partition; 6. Guide column; 7. Lifting plate; 8. End cover; 9. Lifting drive unit; 10. Locking bolt. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See attached Figure 1-5 , a bag dust collector, comprising a housing, a partition, a cage 4, a filter bag 2 and a lifting drive mechanism;

[0026] The partition is installed in the shell and divides the inner cavity of the shell into a clean area and a filter area arranged in an upper and lower manner. The partition includes an upper partition 5 and a lower partition 3. The outer side walls of the upper partition 5 and the lower partition 3 are sealed with the inner side wall of the shell. The upper partition 5 is arranged above the lower partition 3. The lower partition is supported on the angle plate inside the shell and is detachably connected to the angle plate by bolts. Upper circular holes are distributed on the upper partition 5, and lower circular holes are distributed on the lower partition 3. The upper circular holes and the lower circular holes are opposite to each other. A cage 4 is installed at each upper circular hole of the upper partition 5, and a filter bag 2 is installed at each lower circular hole of the lower partition 3. The filter bag 2 is sleeved outside the cage 4 and the bottom of the filter bag 2 is connected to the bottom of the cage 4;

[0027] The lifting drive mechanism includes a lifting drive unit 9, a lifting plate 7 and a guide column 6. The lifting drive unit 9 is installed on the end cover 8. The output end of the lifting drive unit 9 extends upward and is connected to the lifting plate 7. At least one pair of guide columns 6 are connected to both sides of the lifting plate 7. The guide columns 6 penetrate the end cover 8 downward and are connected to the upper partition 5. During the upward lifting process of the output end of the lifting drive unit 9 of the lifting drive mechanism, the upper partition 5 and the cage 4 installed on the upper partition 5 will be driven to move upward synchronously through the lifting plate 7 and the guide column 6. The bottom of the cage 4 is connected to the bottom of the filter bag 2. When the cage 4 rises, the bottom of the filter bag 2 will rise synchronously, and the side wall of the filter bag 2 will be folded, wrinkled, and deformed, so that the dust on the surface of the filter bag 2 will be loosened, separated, and fall off. At the same time, under the action of the original pulse spray cleaning technology (the main structure includes an air bag, a spray pipe, and an electromagnetic pulse valve, which is a prior art and not shown in the figure), these folded and wrinkled areas will expand and vibrate more than before during the expansion of the filter bag 2, thereby improving the cleaning effect. Folds can also be pre-set on the filter bag 2, especially at the upper and lower ends of the filter bag 2. When the cage 4 is inserted downward to the initial position, the filter bag 2 is supported and the folds disappear. When the cage 4 moves upward, the folds gradually recover.

[0028] In this embodiment, the housing includes a shell 1 and an end cover 8 installed at the upper opening of the shell 1. The shell 1 is mainly composed of a rectangular box 1a and a conical ash hopper 1d connected from top to bottom. The bottom of the side wall of the rectangular box 1a is provided with a smoke inlet 1b, and the top of the side wall is provided with a smoke outlet 1c. The conical ash hopper 1d is circumferentially installed with supporting feet. Among them, the smoke inlet 1b, the smoke outlet 1c, and the ash outlet (the bottom opening of the ash hopper) are provided with valves to control opening and closing.

[0029] In this embodiment, the filter bag 2 includes a bag body 2a and a first connecting ring 2b installed on the upper opening of the bag body 2a. The first connecting ring 2b is attached to the bottom surface of the lower partition 3 and is detachably connected to the lower partition 3 by bolts. The first connecting ring 2b surrounds the lower circular hole.

[0030] In this embodiment, the cage 4 extends downward relative to the upper partition 5, and the cage 4 includes support rings 4b spaced apart from top to bottom, support rods 4a installed on the circumference of the support rings 4b, and a second connecting ring 4c coaxial with the support rings 4b and detachable from the top of each support rod 4a. A cross rib 4d is installed in the bottom support ring 4b, and the middle of the bottom wall of the bag body 2a is detachably connected to the middle part of the cross rib 4d by a locking bolt 10. The second connecting ring 4c is attached to the top surface of the upper partition 5 and is detachably connected to the upper partition 5 by bolts. The second connecting ring 4c surrounds the outside of the upper circular hole, and the cage 4 passes through the upper circular hole of the upper partition and the lower circular hole of the lower partition from top to bottom and then is inserted into the filter bag.

[0031] In this embodiment, a step 2c is protruding upward in the middle of the bottom of the bag body 2a, and the step 2c is in contact with the middle part of the cross rib 4d. Under the action of the step 2c, the cross rib 4d and the bottom of the bag body 2a are more spaced apart, which can reduce the situation where the filter holes are covered.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bag dust collector, comprising a shell, a partition installed in the shell, the partition divides the inner cavity of the shell into a clean area and a filter area arranged up and down, the partition is located on one side of the filter area and a cage is installed, and a filter bag is arranged outside the cage, characterized in that: The partition includes an upper partition and a lower partition, the upper partition is provided with upper circular holes, the lower partition is provided with lower circular holes, the upper circular holes and the lower circular holes are directly opposite to each other, a cage is installed at each upper circular hole of the upper partition, a filter bag is installed at each lower circular hole of the lower partition, and the bottom of the cage is connected to the bottom of the filter bag; The bag dust collector also includes a lifting drive mechanism, which is used to drive the upper partition plate and the cage frame to move upward.

2. A bag dust collector according to claim 1, characterized in that: The shell includes a shell and an end cover installed at the opening of the upper end of the shell. The shell is mainly composed of a rectangular box body and a conical ash hopper connected from top to bottom. The bottom of the side wall of the rectangular box body is provided with a smoke inlet, and the top of the side wall is provided with a smoke outlet. The conical ash hopper is circumferentially installed with supporting feet.

3. A bag dust collector according to claim 2, characterized in that: The filter bag includes a bag body and a first connecting ring installed at the upper opening of the bag body. The first connecting ring is attached to the bottom surface of the lower partition and is detachably connected to the lower partition through bolts. The first connecting ring surrounds the lower circular hole.

4. A bag dust collector according to claim 3, characterized in that: The cage frame includes support rings spaced apart from top to bottom, support rods installed around the support rings, and a second connecting ring coaxial with the support rings and detachable from the tops of the support rods. A cross rib is installed in the support ring at the bottom. The middle of the bottom wall of the bag body is detachably connected to the middle part of the cross rib by bolts. The second connecting ring is attached to the top surface of the upper partition and is detachably connected to the upper partition by bolts. The second connecting ring surrounds the outside of the upper circular hole.

5. A bag dust collector according to claim 4, characterized in that: A step is protruding upwards in the middle of the bottom of the bag body, and the step fits with the middle part of the cross rib.

6. A bag dust collector according to claim 1, characterized in that: The lifting drive mechanism includes a lifting drive unit, a lifting plate and guide columns. The lifting drive unit is installed on the end cover. The output end of the lifting drive unit extends upward and is connected to the lifting plate. At least one pair of guide columns are connected to both sides of the lifting plate. The guide columns penetrate downward through the end cover and are connected to the partition.

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