A fractional filter dust collector
By introducing a combination of compressed air box, pulse valve, blow pipe and vibration motor into the graded filter dust collector, the problem of local dust accumulation on the filter screen caused by uneven gas flow is solved, and efficient cleaning and continuous dust removal effect are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHUMADIAN CITY LONGSHAN GENERAL MACHINERY CO LTD
- Filing Date
- 2025-07-23
- Publication Date
- 2026-06-23
AI Technical Summary
Uneven gas flow in existing graded filter dust collectors leads to thick local dust accumulation on the filter screen, affecting the filtration effect and resulting in low dust removal efficiency.
It adopts a combination of compressed air box, pulse valve, blow pipe and vibration motor to clean the filter screen by blowing compressed air and remove dust by vibration motor, thereby improving dust removal efficiency.
It achieves efficient cleaning of the filter, ensures continuous air circulation, and improves dust removal efficiency and effectiveness.
Smart Images

Figure CN224388351U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of industrial dust collector technology, and more specifically, relates to a graded filtration dust collector. Background Technology
[0002] Industrial dust collectors, also known as industrial vacuum cleaners, are industrial dust collection devices used for industrial applications to collect and remove particulate matter, dust, smoke, and water generated during production, operation, and transportation. Dust collectors are commonly used facilities in boilers and industrial production. Existing dust collectors have multiple filters installed inside to achieve multi-stage filtration. However, in the current staged filtration dust collectors, when the gas containing smoke and dust enters the dust collector housing through the air inlet, the gas flow is not uniform. This causes thicker dust accumulation in some areas of the filter screen directly opposite the air inlet, while less dust accumulates at the edges, affecting the filtration effect on dust in the gas. This presents certain inconveniences during use and has room for improvement.
[0003] A graded filtration industrial dust collector, as described in patent application CN202320802292.5, includes a dust collector housing. A dust hopper is symmetrically fixed to the bottom surface of the housing. Support legs are installed at the four corners of the bottom surface of the housing. An air inlet is fixed to the center of one end surface of the housing. Filter screens A, B, and C are evenly spaced inside the housing. Each filter screen has a fixed frame installed on its exterior. Limiting slots for inserting the filter screens A, B, and C are evenly spaced on the top surface of the housing. This design, using a first functional component, facilitates the uniform dispersion of gas entering the housing through the air inlet, allowing the gas to circulate evenly within the housing and filter dust through the filters, preventing localized thick dust accumulation on the filters that could affect the filtration effect.
[0004] However, the dust removal efficiency of the aforementioned graded filtration industrial dust collector is low. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides a graded filter dust collector that can clean the filter screen. In addition, with the help of a vibration motor, it improves the dust removal efficiency and ensures continuous dust removal effect, which helps to circulate clean air.
[0006] This utility model discloses a graded filter dust collector, comprising a housing; a top cover snapped onto the upper end of the housing; an air inlet fixedly connected to the front side of the housing; an air pump disposed on the rear side of the housing; and the output end of the air pump connected to the inner side of the housing. It also includes filter screens three, two, and one, sequentially snapped onto the inner side of the housing from left to right; a pulse valve disposed on the outer side of the housing; a blowpipe fixedly connected to the output end of the pulse valve; a compressed air box fixedly connected to one side of the pulse valve; the upper end of the blowpipe snapped onto the upper end of the housing; three sets of air jet holes opened at the upper end of the blowpipe; a vibration motor fixedly connected to the upper end of the top cover; and the upper ends of filter screens one, two, and three respectively abutting against the lower end face of the top cover.
[0007] Preferably, the lower end of the outer shell is snapped into the dust collection box.
[0008] Preferably, the dust collection box has partitions attached to the lower sides of the corresponding filter screen one and filter screen two, so as to isolate the dust filtered out by filter screen one and filter screen two in the inner side of the dust collection box.
[0009] Preferably, the inner side of the air inlet is provided with a frustum-shaped cross section so that the dust accumulated in the air inlet falls onto the inner side of the outer casing.
[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0011] (1) By setting up a compressed air box, pulse valve and blow pipe, the filter screen can be cleaned. At the same time, with the vibration motor, the dust removal efficiency is improved and the continuous dust removal effect is ensured, which helps the circulation of clean air.
[0012] (2) By setting up an air pump, clean air is extracted, and compressed air is blown out from the jet hole, which improves the dust removal effect. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the main structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the internal structure of the present invention;
[0016] Figure 4 This is a schematic diagram of the blowpipe structure of this utility model.
[0017] The following are the labels in the diagram: 10. Outer shell; 11. Dust collection box; 12. Air inlet; 13. Top cover; 14. Vibration motor; 15. Air pump; 16. Compressed air box; 17. Pulse valve; 18. Blowpipe; 19. Filter screen one; 20. Filter screen two; 21. Filter screen three; 22. Air jet hole; 23. Partition. Detailed Implementation
[0018] Specific Implementation Example 1: Please refer to Figure 1-4 A graded filter dust collector includes a housing 10; a top cover 13 is snapped onto the upper end of the housing 10; an air inlet 12 is fixedly connected to the front side of the housing 10; an air pump 15 is disposed on the rear side of the housing 10; the inner side of the housing 10 is connected to the output end of the air pump 15; it also includes filter screens 21 (third), 20 (second), and 19 (first) sequentially snapped onto the inner side of the housing 10 from left to right; a pulse valve 17 is disposed on the outer side of the housing 10; the output end of the pulse valve 17 is fixedly connected to a blowpipe 18; one side of the pulse valve 17 is fixedly connected to... The compressed air box 16 is connected; the upper end of the blow pipe 18 is snapped into the upper end of the outer shell 10; three sets of air jet holes 22 are opened at the upper end of the blow pipe 18; the upper end of the upper cover 13 is fixedly connected to the vibration motor 14; the upper ends of the first filter screen 19, the second filter screen 20, and the third filter screen 21 respectively abut against the lower end face of the upper cover 13; by setting up the compressed air box 16, the pulse valve 17, and the blow pipe 18, the filter screen can be cleaned. At the same time, in conjunction with the vibration motor 14, the dust removal efficiency is improved, and the continuous dust removal effect is ensured, which helps to circulate clean air.
[0019] Please see Figure 1 The lower end of the outer shell 10 is snapped into the dust collection box 11.
[0020] Please see Figure 3 The dust collection box 11 has partitions 23 attached to the lower sides of the corresponding filter screen 19 and filter screen 20 respectively, so as to isolate the dust filtered out by the filter screen 19 and filter screen 20 in the inner side of the dust collection box 11.
[0021] Please see Figure 3 The inner side of the air inlet 12 is provided with a frustum-shaped cross section so that the dust accumulated in the air inlet 12 falls into the inner side of the outer casing 10; by providing an air pump 15, clean air is extracted by the air pump 15, and at the same time, compressed air is blown out by the jet hole 22, which improves the dust removal effect.
[0022] During operation, insert the pipe into the air inlet 12. Then, the air inside the pipe passes through the air inlet 12 and is filtered by filter screen 19, filter screen 20, and filter screen 31 in sequence. Then, start the air pump 15 to extract clean air.
[0023] After multiple filtrations, the pulse valve 17 is activated. The pulse valve 17 draws compressed air from the inside of the compressed air box 16 and then sends the compressed air into the inside of the blowpipe 18. After entering the blowpipe 18, the compressed air is transported from the lower side to the upper side of the blowpipe 18 and is ejected from the jet nozzle 22. After being ejected from the jet nozzle 22, the compressed air blows away the dust attached to the filter screen 19, filter screen 20, and filter screen 21. After blowing off the dust attached to the filter screen 19, filter screen 20, and filter screen 21, the surfaces of the filter screen 19, filter screen 20, and filter screen 21 are cleaner, preventing air from being blocked and unable to pass through smoothly.
[0024] The dust blown down, due to the aggregation and kinetic energy provided by the compressed air, eventually falls onto the inside of the dust collection box 11. The dust cannot pass through the partition 23 and can only be collected inside the dust collection box 11. However, sometimes cleaning cannot be completed by blowing alone. At this time, the vibration motor 14 is activated, and the vibration generated by the vibration motor 14 is transmitted to the upper cover 13. Subsequently, the vibration on the upper cover 13 causes the filter screen 21, filter screen 20, and filter screen 19 to shake, causing the dust on filter screen 19, filter screen 20, and filter screen 21 to fall off, further improving the cleaning efficiency.
[0025] The specification and claims use certain terms to refer to specific components. Those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.
[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes said element.
[0027] The foregoing description presents and describes several preferred embodiments of this application. However, as mentioned above, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the application concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be within the protection scope of the appended claims.
Claims
1. A graded filter dust collector, comprising a housing (10); a cover (13) is snapped onto the upper end of the housing (10); an air inlet (12) is fixedly connected to the front side of the housing (10); an air pump (15) is disposed on the rear side of the housing (10); the inner side of the housing (10) is connected to the output end of the air pump (15); characterized in that, It also includes filter screen three (21), filter screen two (20), and filter screen one (19) that are sequentially snapped into the inner side of the outer shell (10) from left to right; a pulse valve (17) is provided on the outer side of the outer shell (10); the output end of the pulse valve (17) is fixedly connected to the blow pipe (18); a compressed air box (16) is fixedly connected to one side of the pulse valve (17); the upper end of the blow pipe (18) is snapped into the upper end of the outer shell (10); three sets of air jet holes (22) are opened at the upper end of the blow pipe (18); a vibration motor (14) is fixedly connected to the upper end of the cover (13); the upper ends of filter screen one (19), filter screen two (20), and filter screen three (21) respectively abut against the lower end face of the cover (13).
2. The graded filter dust collector according to claim 1, characterized in that: The lower end of the outer shell (10) is snapped into the dust collection box (11).
3. A graded filter dust collector according to claim 2, characterized in that: The dust collection box (11) has partitions (23) attached to the lower sides of the corresponding filter screen one (19) and filter screen two (20) respectively, so as to isolate the dust filtered out by filter screen one (19) and filter screen two (20) in the inner side of the dust collection box (11).
4. A graded filter dust collector according to claim 1, characterized in that: The air inlet (12) is provided with a frustum-shaped cross section on the inner side so that the dust accumulated in the air inlet (12) falls into the inner side of the outer casing (10).