CN211189429U - Central dust collection cabinet with polyester fiber needle felt filter bags - Google Patents

Abstract

The utility model discloses a be furnished with central authorities' dust removal cabinet of polyester fiber acupuncture felt filter bag, its technical scheme main points are including the casing, the fan, deposition device and a plurality of dust removal subassembly, dust removal subassembly includes the connecting pipe, the upper end dish, intermediate disk and lower end dish, set up between intermediate disk and the lower end dish and cross the filter bag, be equipped with the air guide hole on the connecting pipe, be fixed with the wind board on the lateral surface of connecting pipe, the fan is connected with the air-out house steward, the other end of air-out house steward is connected with air-out branch pipe and backflow branch pipe, air-out branch pipe is provided with the air-out valve with the junction of air-out house steward, backflow branch pipe is provided with the backward flow outlet with the backward flow. The dust in the air can be separated or the dust is removed from the filter bag by opening and closing the fan, the backflow valve and the air outlet valve, the dust removing structure is simple, the dust removing operation is convenient, and the filter bag is not impacted in the dust removing process, so that the filter bag is not easy to damage.

Description

Central dust collection cabinet with polyester fiber needle felt filter bags

technical field

The utility model relates to the field of dust removal equipment, in particular to a central dust removal cabinet equipped with a polyester fiber needle-punched felt filter bag.

Background technique

During the processing of products in the manufacturing industry, many processes are prone to dust, such as stone grinding, polishing, metal or wood cutting and cutting, and boiler combustion, etc. Dust has caused adverse effects on the production process and production environment. influences. Because employees stay in dust-filled workshops for a long time, dust is easy to accumulate in the respiratory tract, which affects the health of employees. At the same time, the dust generated by wood cutting is also flammable, which poses a potential safety hazard.

The dust removal cabinet is a device used to separate dust and other particles from the gas. The working principle of the existing dust collector is as follows: the dust-laden gas enters the filter chamber from the lower open flange, and the coarser particles directly fall into the ash bin , The dust-containing gas is filtered by the filter bag, the dust is retained on the surface of the bag, and the clean air passes through the bag mouth to the clean air chamber, and is discharged into the atmosphere by the fan. When the dust on the surface of the filter bag continues to increase, the program controller starts to work, and opens the pulse valves one by one, so that the compressed air blows the filter bag through the nozzle to clean the dust, so that the filter bag suddenly expands. The dust quickly leaves the filter bag and falls into the ash bin. However, to clean the filter bag in this way, not only the structure of cleaning is complicated, but the sudden expansion of the filter bag is easy to cause damage to the filter bag.

Utility model content

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a central dust removal cabinet equipped with a polyester fiber needle-punched felt filter bag. Convenient, the filter bag is not easy to be damaged.

In order to achieve the above purpose, the utility model provides the following technical scheme: a central dust removal cabinet equipped with a polyester fiber needle-punched felt filter bag, including a casing, a fan, a dust accumulation device and a number of dust removal components, and the casing is provided with a a filter cavity, the dust removal component is arranged in the filter cavity, and the filter cavity is provided with an air inlet and a plurality of air outlets, the air outlets are all arranged above the filter cavity, and each air outlet is connected with a dust removal component, The dust-laden gas is dedusted by the dust-removing component in the filter chamber and then discharged from the air outlet; the dust-accumulating device is arranged on the lower surface of the filter chamber, and the shell is provided with an outlet for taking out the dust-accumulating device. A cover for opening and closing the ash outlet is arranged at the ash outlet, and a clean air cavity is also arranged in the shell, and the clean air cavity is communicated with the filter cavity through each air outlet, and the fan is installed on the shell and is connected to the filter cavity. The inlet of the fan is communicated with the clean air chamber, and the dust removal assembly includes an inner hollow connecting pipe, an upper end plate, a middle plate and a lower end plate whose outer diameters decrease in turn. It is coaxially and fixedly connected with the intermediate disc, the lower end of the connecting pipe is coaxially and fixedly connected with the lower end disc, the upper end of the connecting tube is coaxially rotatably connected with the upper end disc, and the intermediate disc is rotatably connected in the air outlet, The upper end plate is detachably connected to the upper side wall of the clean air chamber, a filter bag is arranged between the middle plate and the lower end plate, the filter bag is arranged outside the connecting pipe, and the upper and lower ends of the filter bag are respectively connected with the middle The disc is connected to the lower end disc, a number of air guide holes are opened on the outer side of the connecting pipe, and the air guide holes are all connected to the inner and outer sides of the connecting pipe, and a number of air moving plates are fixed on the outer side of the connecting pipe. The air moving plate is located between the upper end plate and the middle plate, and a plurality of air moving plates are evenly distributed in a ring shape along the central axis of the connecting pipe. One side of the air moving plate is fixedly connected with the outer side wall of the connecting pipe, and the other side is away from the connection. The central axis of the pipe extends from one side, the outlet of the fan is connected with an air outlet main pipe, the other end of the air outlet main pipe is connected with an air outlet branch pipe and a return branch pipe, the air outlet branch pipe is connected with the air and the air outlet pipe is connected to the air outlet pipe. The connection between the branch pipe and the air outlet main pipe is provided with an air outlet valve, the connection between the return branch pipe and the air outlet main pipe is provided with a return valve, and a number of return outlets are arranged on the return branch pipe. One-to-one corresponding arrangement, the backflow outlets are all facing the air moving plate, and the gas is blown out from the backflow outlet to drive the connecting pipe and the filter bag to rotate through the air moving plate.

As a further improvement of the present invention, the filter bag is a polyester fiber needle-punched felt filter bag.

As a further improvement of the present invention, the upper end plate is clamped to the upper side wall of the clean air chamber.

As a further improvement of the present invention, the upper side surface of the upper end plate is provided with a pull ring which is convenient for pulling out the dust removal assembly.

As a further improvement of the present invention, the upper and lower ends of the filter bag are respectively attached to the middle plate and the lower end plate by means of Velcro.

As a further improvement of the present invention, the air guide holes are uniformly distributed along the circumferential direction of the connecting pipe and arranged along the length direction of the connecting pipe.

The beneficial effects of the utility model: the operator can separate the dust in the air or clean the filter bag by opening and closing the fan, the return valve and the air outlet valve, the dust cleaning structure is simple, the dust cleaning operation is convenient, and the dust cleaning There is no impact on the filter bag during the process, so the filter bag is not easy to be damaged. The outer diameter of the upper end plate, the middle plate and the lower end plate of the dust removal assembly decreases in turn, and the upper end plate is detachably connected to the upper side wall of the clean air chamber, so that the operator can replace the dedusting assembly, or take out the dedusting assembly for deep cleaning. The ash outlet on the casing and the arrangement of the cover enable the operator to take out the ash accumulation device from the casing, so as to facilitate the disposal of the accumulated dust.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the central dust-removing cabinet equipped with polyester fiber needle-punched felt filter bag;

Figure 2 is a cross-sectional view of a central dust-removing cabinet equipped with a polyester fiber needle-punched felt filter bag;

Fig. 3 is the enlarged view of A place in Fig. 2;

Figure 4 is another sectional view from an angle of a central dust cabinet equipped with a polyester fiber needle felt filter bag.

Reference numerals: 1. Shell; 11. Filter chamber; 111, Air inlet; 112, Air outlet; 12, Ash outlet; 13, Cover; 14, Clean air chamber; 2, Fan; 21, Air outlet Main pipe; 22, outlet branch pipe; 23, return branch pipe; 231, return outlet; 24, air outlet valve; 25, return valve; 3, dust accumulation device; 4, dust removal component; 41, connecting pipe; 411, air guide hole; 42, the upper end plate; 421, the pull ring; 43, the middle plate; 44, the lower end plate; 45, the filter bag; 451, the Velcro; 46, the pneumatic plate.

Detailed ways

The present utility model will be described in further detail below in conjunction with the accompanying drawings and embodiments. Wherein the same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top" "Face", "inner" and "outer" refer to directions toward or away from the geometric center of a particular part, respectively.

Referring to FIGS. 1 to 4 , the central dust removal cabinet equipped with polyester fiber needled felt filter bags in this embodiment includes a casing 1 , a fan 2 , a dust accumulation device 3 and several dust removal components 4 . The casing 1 A filter cavity 11 is arranged inside, the dust removal assembly 4 is arranged in the filter cavity 11, and the filter cavity 11 is provided with an air inlet 111 and a number of air outlets 112, and the air outlets 112 are arranged above the filter chamber 11 and each air outlet 112. Both are connected with a dust removal component 4, and the dust-laden gas is removed from the dust removal component 4 in the filter chamber 11 and then discharged from the air outlet 112; the dust accumulation device 3 is arranged on the lower surface of the filter chamber 11, and the housing 1 is provided with a for taking out dust accumulation. The ash outlet 12 of the device 3, the ash outlet 12 is provided with a cover 13 for opening and closing the ash outlet 12, and the housing 1 is also provided with a clean air cavity 14, and the clean air cavity 14 passes through each air outlet 112 and filters. The cavity 11 is connected, the fan 2 is installed on the housing 1 and the inlet of the fan 2 is connected with the clean air cavity 14, the dust removal assembly 4 includes a connecting pipe 41 with an inner hollow and an upper end plate 42 with a decreasing outer diameter. The plate 43 and the lower end plate 44, the connecting pipe 41 penetrates the middle plate 43 and is coaxially fixedly connected with the middle plate 43, the lower end of the connecting pipe 41 is coaxially fixedly connected with the lower end plate 44, and the upper end of the connecting pipe 41 is coaxially rotatably connected with the upper end plate 42, The middle plate 43 is rotatably connected to the air outlet 112 , the upper end plate 42 is detachably connected to the upper side wall of the clean air chamber 14 , a filter bag 45 is arranged between the middle plate 43 and the lower end plate 44 , and the filter bag 45 is surrounded by the connecting pipe 41 In addition, the upper and lower ends of the filter bag 45 are respectively connected with the middle plate 43 and the lower end plate 44, and a number of air guide holes 411 are opened on the outer side of the connecting pipe 41. The outer side of the pipe 41 is also fixed with a number of air moving plates 46, the air moving plates 46 are located between the upper end plate 42 and the middle plate 43, and the plurality of air moving plates 46 are evenly distributed in a ring shape along the central axis of the connecting pipe 41. 46 are fixedly connected to the outer side wall of the connecting pipe 41 on one side, and the other side extends away from the central axis of the connecting pipe 41. The outlet of the fan 2 is connected with an air outlet main pipe 21, and the other end of the air outlet main pipe 21 is connected with an air outlet branch pipe. 22 and the return branch pipe 23, the air outlet branch pipe 22 is connected to the air and the air outlet valve 24 is provided at the connection between the air outlet branch pipe 22 and the air outlet main pipe 21, and the return valve 25 is provided at the connection between the return branch pipe 23 and the air outlet main pipe 21 , the return branch pipe 23 is provided with a number of return outlets 231, the return outlets 231 are arranged in a one-to-one correspondence with the dust removal components 4, the return outlets 231 are all facing the wind plate 46, and the gas is blown out from the return outlet 231 through the wind plate 46 to drive the connection The tube 41 and the filter bag 45 rotate.

The fouling device 3 can be set as a box with an upper opening. When the return valve 25 is closed and the air outlet valve 24 is opened, the operator starts the fan 2, the dust-laden gas enters from the air inlet 111, and the large-particle dust falls directly into the dust-accumulating device 3 due to the action of gravity, and the dust-laden gas passes through the filter When the bag 45 is used, the small particle dust is isolated by the filter bag 45, and the purified air enters the connecting pipe 41 through the air guide hole 411 between the middle plate 43 and the lower end plate 44, and passes through the air between the upper end plate 42 and the middle plate 43. The air guide hole 411 enters the clean air chamber 14 from the connecting pipe 41, and the gas in the clean air chamber 14 enters the inlet of the fan 2 and is discharged from the air outlet branch pipe 22 through the air outlet main pipe 21; therefore, the dust removal cabinet can remove the dust in the air. seperate. When the return valve 25 is opened and the air outlet valve 24 is closed, the air in the clean air chamber 14 enters the inlet of the fan 2 and enters the return branch pipe 23 through the air outlet main pipe 21, and finally is discharged to the return pipe 23 through the return outlet 231 on the return branch pipe 23. In the clean air chamber 14, the air discharged from the return outlet 231 pushes the wind plate 46, and the wind plate 46 drives the connecting pipe 41 to rotate, so that each dust removal assembly 4 rotates, and the dust accumulated on the filter bag 45 is under the action of centrifugal force The filter bag 45 can be cleaned by dropping it into the ash accumulation device 3. Therefore, the operator can clean the filter bag 45 by opening and closing the return valve 25 and the air outlet valve 24. The cleaning structure is simple and the cleaning operation is simple. It is convenient, and the filter bag is not impacted during the cleaning process, so the filter bag is not easy to be damaged. The outer diameters of the upper end plate 42, the middle plate 43 and the lower end plate 44 of the dust removal assembly 4 are successively reduced, and the upper end plate 42 is detachably connected to the upper side wall of the clean air chamber 14, so that the operator can replace the dedusting assembly 4, or replace the dedusting assembly. 4 Take out for deep cleaning. The arrangement of the ash outlet 12 and the cover 13 on the housing 1 enables the operator to take out the ash accumulating device 3 from the housing 1 to facilitate the disposal of accumulated dust.

As an improved specific embodiment, referring to FIG. 3 , the filter bag 45 is a polyester fiber needle-punched felt filter bag. The needle-punched felt filter bag has the advantages of good air permeability, high dust collection efficiency and long service life. The use of polyester fiber needle-punched felt filter bag can improve the filtration speed, reduce the running resistance, and is not easy to condense and adhere to dust.

As an improved specific embodiment, referring to FIG. 2 , the upper end plate 42 is clamped to the upper side wall of the clean air chamber 14 . The clean air chamber 14 can be provided with a through hole for inserting the upper end plate 42, a rubber ring can be fixed on the side wall of the through hole, and the outer diameter of the upper end plate 42 can be set between the inner diameter of the through hole and the inner diameter of the rubber ring. The 42 can be snapped into the rubber ring, which not only realizes the snap connection between the upper end plate 42 and the clean air chamber 14, but also helps to provide sealing.

As an improved specific embodiment, as shown in FIG. 2 , a pull ring 421 is provided on the upper side of the upper end plate 42 to facilitate pulling out the dust removal assembly 4 . The provision of the pull ring 421 enables the operator to pull out the dust removal assembly 4 by pulling the pull ring 421 when disassembling the dust removal assembly 4 , so that the removal of the dust removal assembly 4 is simpler and more convenient.

As an improved specific embodiment, as shown in FIG. 3 , the upper and lower ends of the filter bag 45 are respectively adhered to the middle plate 43 and the lower end plate 44 through Velcro 451 . The filter bag 45 is detachably connected to the middle plate 43 and the lower end plate 44, which is convenient for the operator to replace the filter bag 45 or remove the filter bag 45 for dust cleaning, and the detachable structure is simple and practical, and easy to operate.

As an improved specific embodiment, referring to FIG. 2 , FIG. 3 , and FIG. 4 , the air guide holes 411 are uniformly distributed along the circumferential direction of the connecting pipe 41 and arranged along the length direction of the connecting pipe 41 . The uniform distribution of the air guide holes 411 is conducive to the rapid flow of the gas.

working principle:

When the return valve 25 is closed and the air outlet valve 24 is opened, the operator starts the fan 2, the dust-laden gas enters from the air inlet 111, and the large-particle dust falls directly into the dust-accumulating device 3 due to the action of gravity, and the dust-laden gas passes through the filter When the bag 45 is used, the small particle dust is isolated by the filter bag 45, and the purified air enters the connecting pipe 41 through the air guide hole 411 between the middle plate 43 and the lower end plate 44, and passes through the air between the upper end plate 42 and the middle plate 43. The air guide hole 411 enters the clean air chamber 14 from the connecting pipe 41, and the gas in the clean air chamber 14 enters the inlet of the fan 2 and is discharged from the air outlet branch pipe 22 through the air outlet main pipe 21; therefore, the dust removal cabinet can remove the dust in the air. seperate. When the return valve 25 is opened and the air outlet valve 24 is closed, the air in the clean air chamber 14 enters the inlet of the fan 2 and enters the return branch pipe 23 through the air outlet main pipe 21, and finally is discharged to the return pipe 23 through the return outlet 231 on the return branch pipe 23. In the clean air chamber 14, the air discharged from the return outlet 231 pushes the wind plate 46, and the wind plate 46 drives the connecting pipe 41 to rotate, so that each dust removal assembly 4 rotates, and the dust accumulated on the filter bag 45 is under the action of centrifugal force The filter bag 45 can be cleaned by dropping it into the ash accumulation device 3. Therefore, the operator can clean the filter bag 45 by opening and closing the return valve 25 and the air outlet valve 24. The cleaning structure is simple and the cleaning operation is simple. It is convenient, and the filter bag is not impacted during the cleaning process, so the filter bag is not easy to be damaged. The outer diameters of the upper end plate 42, the middle plate 43 and the lower end plate 44 of the dust removal assembly 4 are successively reduced, and the upper end plate 42 is detachably connected to the upper side wall of the clean air chamber 14, so that the operator can replace the dedusting assembly 4, or replace the dedusting assembly. 4 Take out for deep cleaning. The arrangement of the ash outlet 12 and the cover 13 on the housing 1 enables the operator to take out the ash accumulating device 3 from the housing 1 to facilitate the disposal of accumulated dust. The clean air chamber 14 can be provided with a through hole for inserting the upper end plate 42, a rubber ring can be fixed on the side wall of the through hole, and the outer diameter of the upper end plate 42 can be set between the inner diameter of the through hole and the inner diameter of the rubber ring. The 42 can be snapped into the rubber ring, which not only realizes the snap connection between the upper end plate 42 and the clean air chamber 14, but also helps to provide sealing. The provision of the pull ring 421 enables the operator to pull out the dust removal assembly 4 by pulling the pull ring 421 when disassembling the dust removal assembly 4 , so that the removal of the dust removal assembly 4 is simpler and more convenient. The filter bag 45 is detachably connected to the middle plate 43 and the lower end plate 44, which is convenient for the operator to replace the filter bag 45 or remove the filter bag 45 for dust cleaning, and the detachable structure is simple and practical, and easy to operate.

The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (6)

1. A central dust removal cabinet equipped with a polyester fiber needle-punched felt filter bag, including a housing (1), a fan (2), a dust accumulation device (3) and a number of dust removal components (4), characterized in that: the A filter cavity (11) is arranged in the housing (1), the dust removal assembly (4) is arranged in the filter cavity (11), and an air inlet (111) and a plurality of air outlets are arranged in the filter cavity (11). (112), the air outlets (112) are all arranged above the filter chamber (11) and each air outlet (112) is connected with a dust removal component (4), and the dust-laden gas passes through the filter chamber (11) through dust removal The assembly (4) is discharged from the air outlet (112) after dust removal; the dust accumulation device (3) is arranged on the lower surface of the filter cavity (11), and the casing (1) is provided with a dust accumulation device (3) for taking out the dust accumulation. ) of the ash outlet (12), the ash outlet (12) is provided with a cover (13) for opening and closing the ash outlet (12), and the housing (1) is also provided with a clean air cavity (14), the clean air chamber (14) communicates with the filter chamber (11) through each air outlet (112), the fan (2) is installed on the casing (1), and the fan (2) is The inlet is communicated with the clean air chamber (14), and the dust removal assembly (4) includes an inner hollow connecting pipe (41) and an upper end plate (42), an intermediate plate (43) and a lower end plate whose outer diameters decrease in turn. (44), the connecting pipe (41) penetrates the intermediate disk (43) and is coaxially and fixedly connected with the intermediate disk (43), and the lower end of the connecting pipe (41) is the same as the lower end disk (44). The shaft is fixedly connected, the upper end of the connecting pipe (41) is coaxially rotatably connected to the upper end plate (42), the middle plate (43) is rotatably connected to the air outlet (112), and the upper end plate (42) is connected to the air outlet (112). The upper side wall of the clean air chamber (14) is detachably connected, and a filter bag (45) is arranged between the middle plate (43) and the lower end plate (44), and the filter bag (45) is surrounded by the connecting pipe (41). ), and the upper and lower ends of the filter bag (45) are respectively connected with the middle plate (43) and the lower end plate (44), and a number of air guide holes (411) are opened on the outer side of the connecting pipe (41). The air guide holes (411) are both connected to the inner and outer sides of the connecting pipe (41), and a plurality of air moving plates (46) are fixed on the outer side of the connecting pipe (41), and the air moving plates (46) are located at the upper end. Between the disk (42) and the intermediate disk (43), a plurality of air moving plates (46) are evenly distributed in a ring shape along the central axis of the connecting pipe (41), and the air moving plates (46) are connected to the connecting pipe (41) on one side. The outer side wall is fixedly connected, the other side extends away from the central axis of the connecting pipe (41), the outlet of the fan (2) is connected with an air outlet main pipe (21), and the other end of the air outlet main pipe (21) An air outlet branch pipe (22) and a return branch pipe (23) are connected, the air outlet branch pipe (22) communicates with the air, and an air outlet is provided at the connection between the air outlet branch pipe (22) and the air outlet main pipe (21). The valve (24), the return branch pipe (23) and the air outlet main pipe (21) A return valve (25) is provided at the connection between the two parts, a number of return outlets (231) are arranged on the return branch pipe (23), and the return outlets (231) are arranged in a one-to-one correspondence with the dust removal assembly (4). The backflow outlets (231) are all facing the air moving plate (46), and the gas is blown out from the backflow outlet (231) to drive the connecting pipe (41) and the filter bag (45) to rotate through the air moving plate (46). 2 . The central dust removal cabinet equipped with a polyester fiber needle-punched felt filter bag according to claim 1 , wherein the filter bag ( 45 ) adopts a polyester fiber needle-punched felt filter bag. 3 . 3. The central dust removal cabinet equipped with polyester fiber needle-punched felt filter bags according to claim 1, wherein the upper end plate (42) is clamped to the upper side wall of the clean air chamber (14). 4. The central dust-removing cabinet equipped with polyester fiber needle-punched felt filter bags according to claim 3, characterized in that: the upper side of the upper end plate (42) is provided with a device that facilitates pulling out the dust-removing assembly (4) assembly. Pull tab (421). 5. The central dust removal cabinet equipped with polyester fiber needle felt filter bags according to claim 1, characterized in that: the upper and lower ends of the filter bag (45) are respectively connected with the middle plate (43) and the lower end plate ( 44) Adhesion by Velcro (451). 6. The central dust removal cabinet equipped with polyester fiber needle felt filter bags according to claim 1, characterized in that: the air guide holes (411) are evenly distributed along the circumferential direction of the connecting pipe (41) and along the connecting pipe (41) are arranged in the longitudinal direction.

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