Bag type dust collector

Abstract

The invention discloses a bag type dust collector which comprises a bag type dust collection body and a filter element filtering structure, the bag type dust collection body comprises a machine box, a pulse injection mechanism and an air exhaust fan, and the filter element filtering structure is arranged in the machine box; the filter element filtering structure comprises an aeration pipe connected with the pulse injection mechanism, a filter element fixed in the second filtering space, and a lifting mechanism capable of walking in the length direction of the filter element; the at least two rotating mechanisms are mounted on the lifting mechanism and can rotate around the outer side of the filter element; the high-pressure air nozzles are mounted on the rotating mechanisms and are connected with the pulse injection mechanism; according to the bag type dust collector, the filter bag of the bag type dust collection body or the filter element of the filter element filtering structure can be selected for filtering, the use scene of the bag type filter is increased, adsorbed dust can be cleaned from the interior of the filter element or the exterior of the filter element, and the service life of the filter element is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal equipment, and more specifically to a bag dust collector. Background Art

[0002] Bag filter is a kind of high-efficiency dry dust collector. It relies on filter bags made of fiber filter materials. More importantly, it purifies the gas through the dust layer formed on the surface of the filter bag. The filter bag is usually made of textiles, such as polypropylene, polyester, nylon, etc. At present, the common bag filter on the market has only a filter bag as its filtering structure, and the filter bag is mainly used for coarse filtration, and the filtration accuracy is generally between 1-200 microns. Therefore, these common bag filter cannot be used in places such as offices that require higher filtration accuracy. Filters with filter elements are usually used in office places. The filter element is usually composed of a filter cartridge and a filter screen. There are many types of materials. For example, filter elements such as polypropylene, ceramics, steel, and paper can filter out small suspended particles and microorganisms. The filtration accuracy is generally between 0.1-50 microns. The price of the filter element is relatively high. If the filter element is directly installed in the bag filter, the dust attached to the outer surface of the filter element cannot be removed in time, and the dust removal effect of the pulse spray mechanism is not good. Therefore, it is necessary to improve these common bag filters. Summary of the invention

[0003] The main purpose of the present invention is to solve the above-mentioned problems and provide a bag dust collector that can increase the usage scenarios and increase the service life of the filter medium.

[0004] The technical solution adopted by the present invention is: a bag dust collector, which includes a bag dust collector body and a filter element filtering structure, the bag dust collector body includes a chassis, a pulse spraying mechanism and an exhaust fan, the filter element filtering structure is arranged in the chassis, the filter element filtering structure includes an aeration pipe connected to the pulse spraying mechanism, a filter element fixed in the second filtering space, a lifting mechanism capable of moving in the length direction of the filter element, at least two rotating mechanisms installed on the lifting mechanism and capable of rotating around the outer side of the filter element, and a high-pressure air nozzle installed on the rotating mechanism and connected to the pulse spraying mechanism, so that the high-pressure gas sprayed by the pulse spraying mechanism cleans the interior of the filter element, and the high-pressure gas sprayed by the high-pressure nozzle can clean the outer surface of the filter element.

[0005] The interior of the chassis is divided into a first filter space, a second filter space and an air extraction channel respectively communicating with the first filter space and the second filter space by a partition, and the filter bag filter assembly is arranged in the first filter space.

[0006] The lifting mechanism comprises a base plate, a circular ring, two guide column sets connected between the base plate and the circular ring, and two electric control push rods connected between the base plate and the circular ring. A filter element fixing tube is fixed in the middle of the base plate.

[0007] The bottom plate is installed with a base for accommodating the guide column of the guide column kit, and the base is placed inside the air extraction channel. The bottom plate is fixed at a position where the second filter space and the air extraction channel are connected. The air extraction channel is connected to the second filter space through the fixed pipe.

[0008] The rotating mechanism comprises a gear ring rotatably mounted on the circular ring, a gear rotatably mounted on the circular ring and meshing with the gear ring, and a motor fixed on the back side of the circular ring and transmission-connected with the gear.

[0009] The gear ring is installed on the circular ring through a guide rail, the circular ring is provided with a first air hole, the guide rail is provided with a second air hole communicating with the first air hole, the gear ring is provided with a third air hole communicating with the second air hole, the high-pressure nozzle is connected to the third air hole through an air pipe, and the first air hole is connected to a pulse jet mechanism through an air pipe.

[0010] The high-pressure nozzle comprises a base frame and a nozzle body. A slide groove is arranged on the top of the base frame, and the nozzle body is mounted on the slide groove by bolts.

[0011] The air outlet of the nozzle body is provided with an arc plate with the same arc as the outer surface of the filter element, and the arc plate is provided with a notch.

[0012] The air exhaust passage is provided with an air valve close to the air exhaust fan.

[0013] The beneficial effects of the present invention are as follows: the present invention can choose to filter through the filter bag of the bag dust collector body or through the filter element of the filter element filtering structure, thereby increasing the use scenarios of the bag filter, and can clean the adsorbed dust from the inside or outside of the filter element, thereby increasing the service life of the filter element. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 It is a three-dimensional schematic diagram of the filter element filtering structure of the present invention.

[0016] Figure 3 It is a schematic diagram of the partial cross-sectional structure of the rotating mechanism of the present invention.

[0017] Figure 4 It is a three-dimensional schematic diagram of the high-pressure nozzle of the present invention.

[0018] Figure 5 It is a schematic diagram of the cross-sectional structure of the high-pressure nozzle of the present invention. DETAILED DESCRIPTION

[0019] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0020] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0022] Please refer to Figures 1 to 5 , a bag dust collector provided by the present invention, such as Figure 1As shown, it includes a bag dust collector body 10 and a filter element filtering structure 20. It is worth noting that the bag dust collector body 10 of the present invention is a prior art. Reference can be made to the cyclone pulse bag dust collector disclosed in Chinese patent (patent number: 2021211966675) and a bag dust collector with pulse blowing function (patent number 2022227242447). The bag dust collector body 10 includes a chassis 11, a pulse blowing mechanism 12, a filter bag filter assembly 13 (including a filter cage, a filter bag) and an exhaust fan 14. The interior of the chassis 10 is divided into a first filter space 15, a second filter space 16 and an exhaust channel 17 respectively connected to the first filter space 15 and the second filter space 16 by a partition. The filter bag filter assembly 13 is arranged in the first filter space 15, and the filter element filtering structure 20 is arranged in the second filter space 16. The filter element filtering structure 20 includes a filter element connected to the pulse blowing mechanism 12 The aeration pipe 21 connected thereto, the filter element 22 fixed in the second filter space 16 (usually composed of a filter cartridge and a filter screen, such as a filter element made of polypropylene, ceramic, steel, paper, etc., which can filter out smaller suspended particles and microorganisms and other tiny particles, and the filtration accuracy is generally between 0.1-50 microns), a lifting mechanism 23 that can move in the length direction of the filter element 22, a rotating mechanism 24 installed on the lifting mechanism 23 and capable of rotating around the outer side of the filter element 22, and at least two high-pressure air nozzles 25 installed on the rotating mechanism 24 and connected to the pulse spraying mechanism 12, so that the high-pressure gas sprayed by the pulse spraying mechanism 12 cleans the interior of the filter element 22, and the high-pressure gas sprayed by the high-pressure nozzle 25 can clean the outer surface of the filter element 22, and the high-pressure gas is sequentially cleaned through the aeration pipe 21 and the high-pressure air nozzle 25, thereby solving the problem that the current cleaning effect of the filter element 22 is poor only by relying on high-pressure gas.

[0023] In this embodiment, if Figure 1 As shown, the exhaust passage 17 is provided with an air valve 112 near the exhaust fan 14, and air is extracted from the first filter space 15 or the second filter space 16 through the air valve 112, which can effectively reduce costs.

[0024] In this embodiment, if Figure 2 As shown, the lifting mechanism 23 includes a base plate 231, a ring 232, two guide column kits 233 connected between the base plate 231 and the ring 232, and two electric control push rods 234 connected between the base plate 131 and the ring 232. A fixing tube 235 for fixing the filter element 22 is fixed in the middle of the base plate 231, so that the ring 232 wraps the filter element. The fixing form of the filter element and the fixing tube 235 can be a quick-disassembly structure such as a snap or a thread.

[0025] In this embodiment, if Figure 2As shown, the bottom plate 231 is installed with a base 235 for accommodating the guide column of the guide column kit 233. In this embodiment, the base 234 is placed inside the exhaust channel 17, and the bottom plate 231 is fixed at the position where the second filter space 16 and the exhaust channel 17 are connected. The exhaust channel 17 is connected with the second filter space 16 through the fixed tube 235, so that the exhaust fan can draw air from the second filter space 16 through the exhaust channel, and allow the air to enter the exhaust channel after being filtered by the filter element.

[0026] In this embodiment, the rotating mechanism 24 includes a gear ring 241 rotatably mounted on the ring 232, a gear 242 rotatably mounted on the ring 232 and meshing with the gear ring 241, and a motor 243 fixed on the back side of the ring 232 and transmission connected to the gear 242.

[0027] In this embodiment, if Figure 3 As shown, the gear ring 241 is installed on the circular ring 232 through a guide rail 244, the circular ring 232 is provided with a first air hole A, the guide rail 244 is provided with a second air hole B communicating with the first air hole A, the gear ring 241 is provided with a third air hole C communicating with the second air hole B, the high-pressure nozzle 25 is connected to the third air hole C through an air pipe, the first air hole A is connected to the pulse jet mechanism 12 through the air pipe, so that the high-pressure nozzle 25 can spray to clean the outer surface of the filter element, and through the action of the lifting mechanism, the high-pressure nozzle 25 can move and rotate on the outer surface of the filter element.

[0028] In this embodiment, if Figure 4 , Figure 5 As shown, the high-pressure nozzle 25 includes a base frame 251 and a nozzle body 252. A slide groove 251A is provided on the top of the base frame 251. The nozzle body 252 is installed on the slide groove 251A by bolts. The nozzle body 252 can be positioned arbitrarily in the slide groove 251A to facilitate cleaning of filter elements of different sizes. The user only needs to adjust the nozzle body 252 to a suitable position.

[0029] In this embodiment, the air outlet of the nozzle body 252 is provided with an arc plate 252A having the same arc as the outer surface of the filter element, and the arc plate 252A is provided with a notch 252B. The arc characteristics of the notch can better clean the outer surface of the filter element.

[0030] What the present invention aims to achieve is that the present invention can choose to filter through the filter bag of the bag dust collector body or through the filter element of the filter element filtering structure, thereby increasing the use scenarios of the bag filter, and the adsorbed dust can be cleaned from the inside or outside of the filter element, thereby increasing the service life of the filter element.

[0031] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A bag dust collector, comprising a bag dust collector body and a filter element filtering structure, wherein the bag dust collector body comprises a chassis, a pulse spraying mechanism and an exhaust fan, characterized in that: The filter element filtering structure is arranged in the chassis, and the filter element filtering structure includes an aeration pipe connected to the pulse spray mechanism, a filter element fixed in the second filtering space, a lifting mechanism capable of moving in the length direction of the filter element, at least two rotating mechanisms installed on the lifting mechanism and capable of rotating around the outer side of the filter element, and a high-pressure air nozzle installed on the rotating mechanism and connected to the pulse spray mechanism, so that the high-pressure gas sprayed by the pulse spray mechanism cleans the interior of the filter element, and the high-pressure gas sprayed by the high-pressure nozzle can clean the outer surface of the filter element.

2. A bag dust collector according to claim 1, characterized in that: The interior of the chassis is divided into a first filter space, a second filter space and an air extraction channel respectively communicating with the first filter space and the second filter space by a partition, and the filter bag filter assembly is arranged in the first filter space.

3. A bag dust collector according to claim 1, characterized in that: The lifting mechanism comprises a base plate, a circular ring, two guide column sets connected between the base plate and the circular ring, and two electric control push rods connected between the base plate and the circular ring. A filter element fixing tube is fixed in the middle of the base plate.

4. A bag dust collector as claimed in claim 3, characterized in that: The bottom plate is installed with a base for accommodating the guide column of the guide column kit, and the base is placed inside the air extraction channel. The bottom plate is fixed at a position where the second filter space and the air extraction channel are connected. The air extraction channel is connected to the second filter space through the fixed pipe.

5. A bag dust collector as claimed in claim 4, characterized in that: The rotating mechanism comprises a gear ring rotatably mounted on the circular ring, a gear rotatably mounted on the circular ring and meshing with the gear ring, and a motor fixed on the back side of the circular ring and transmission-connected with the gear.

6. A bag dust collector as claimed in claim 5, characterized in that: The gear ring is installed on the circular ring through a guide rail, the circular ring is provided with a first air hole, the guide rail is provided with a second air hole communicating with the first air hole, the gear ring is provided with a third air hole communicating with the second air hole, the high-pressure nozzle is connected to the third air hole through an air pipe, and the first air hole is connected to a pulse jet mechanism through an air pipe.

7. A bag dust collector as claimed in claim 6, characterized in that: The high-pressure nozzle comprises a base frame and a nozzle body. A slide groove is arranged on the top of the base frame, and the nozzle body is mounted on the slide groove by bolts.

8. A bag dust collector according to claim 7, characterized in that: The air outlet of the nozzle body is provided with an arc plate with the same arc as the outer surface of the filter element, and the arc plate is provided with a notch.

9. A bag dust collector as claimed in claim 2, characterized in that: The air exhaust passage is provided with an air valve close to the air exhaust fan.

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