Air filter element for dust filtration and explosion prevention

Abstract

The utility model discloses an explosion-proof air filter element for dust filtration, and relates to the related technical field of dust filtration. The device comprises a lower end cover, an upper end cover, a stainless steel mesh cylinder, a powder sintering core column, an inner framework and a water pipe, the stainless steel mesh cylinder, the powder sintering core column and the inner framework are fixed to the upper end of the lower end cover, the upper end cover is fixed to the stainless steel mesh cylinder and the inner framework in a screwed mode, an outer ring is arranged outside the upper end cover, and a rotating ring is rotationally arranged between the upper end cover and the outer ring. A water pipe is fixed to the bottom of the rotating ring and located outside the stainless steel mesh cylinder, and atomizing nozzles which are obliquely distributed at equal intervals are fixed to the periphery of the water pipe. By arranging the stainless steel mesh cylinder, the water pipe, the atomizing nozzle, the upper end cover, the motor, the rotating ring, the powder sintering core column and the inner framework, the problems that an air filter element is easy to explode when filtering explosive dust, and a conventional air filter element is slightly low in filtering efficiency and short in service time are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field related to dust filtration, and particularly relates to an explosion-proof air filter element for dust filtration. Background Art

[0002] An air filter is a type of filter, also known as an air filter cartridge, air cleaner, or style. The air filter is mainly used to filter out particulate impurities in the air, such as dust, sand, and other dirt, to ensure that sufficient clean air enters the equipment and prevent dust floating in the air from being sucked into the equipment. The air filter is mainly used to filter out impurities in the gas, but common air filters still have the following disadvantages in actual use:

[0003] 1. First of all, conventional air filter elements are mostly square-shaped or cylindrical structures. This type of structure uses corresponding filter materials. When the air passes through the filter materials, it will block the corresponding particulate impurities and make the air clean. However, in industries such as sandblasting, grinding and rust removal, painting and spraying, metal smelting, industrial dust, dust collectors, cement, steel mills, carbon black dust, powder industry, welding fume, abrasive granulation, sand suction dust collectors, and warehouse top dust, this type of dust is very easy to explode. Therefore, during the filtering process, the filter element should have a certain explosion-proof function to avoid greater hidden dangers;

[0004] 2. Secondly, conventional air filters use a single filter material for filtering, which has insufficient filtering efficiency, requires frequent replacement, has a short service life and is costly. Utility Model Content

[0005] The utility model aims to provide an explosion-proof air filter element for dust filtration. By arranging a stainless steel mesh tube, a water pipe, an atomizing nozzle, an upper end cover, a motor, a rotating ring, a powder sintered core column, and an inner skeleton, the utility model solves the problems that the air filter element is prone to explosion when filtering explosive dust, and the conventional air filter element has a slightly low filtration efficiency and a short service life.

[0006] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0007] The utility model discloses an air filter element for dust filtration and explosion prevention, comprising a lower end cover, an upper end cover, a stainless steel mesh cylinder, a powder sintered core column, an inner frame and a water pipe, wherein the stainless steel mesh cylinder, the powder sintered core column and the inner frame are fixed to the upper end of the lower end cover, and the stainless steel mesh cylinder, the powder sintered core column and the inner frame are arranged from outside to inside, the upper end cover is screwed and fixed to the stainless steel mesh cylinder and the inner frame, an outer ring is arranged outside the upper end cover, and a rotating ring is rotatably arranged between the upper end cover and the outer ring, a water pipe is fixed to the bottom of the rotating ring, and the water pipe is located outside the stainless steel mesh cylinder, and inclined and equidistantly distributed atomizing nozzles are fixed to the outer periphery of the water pipe, and the air outlet direction of the atomizing nozzles is toward the outer peripheral surface of the stainless steel mesh cylinder.

[0008] Furthermore, the stainless steel mesh tube is provided with filter holes distributed at equal intervals on its circumference, and the inner wall of the stainless steel mesh tube is in close contact with the outer wall of the powder sintered core column, and the inner wall of the powder sintered core column is in close contact with the outer wall of the inner frame.

[0009] Furthermore, threaded ring one and threaded ring two are fixed to the bottom surface of the upper end cover, and threaded ring two is located at the inner ring of threaded ring one; threaded ring one is screwed into the threaded groove on the upper part of the inner wall of the stainless steel mesh tube, threaded ring two is screwed into the threaded groove on the upper part of the inner wall of the inner skeleton, and a slot is provided at the upper end of the outer wall of the powder sintered core column, and the inner ring of threaded ring one is located in the slot.

[0010] Furthermore, the upper end cover and the upper end of the outer ring are commonly fixed with connecting strips distributed in a ring array, an air outlet is fixed through the upper end cover, and a rubber ring is provided on the outer cover of the air outlet.

[0011] Furthermore, the cross-section of the rotating ring is I-shaped, and the upper part of the rotating ring extends out of the upper end cover and the upper end of the outer ring, and the lower part of the rotating ring also extends out of the upper end cover and the lower end of the outer ring. A gear ring is fixed on the upper end surface of the rotating ring, and the gear ring is located on the inner side of all connecting strips.

[0012] Furthermore, an inverted U-shaped mounting frame is fixed to the upper end of the upper end cover, and a motor is fixed to the upper end of the horizontal part of the mounting frame. The output shaft of the motor passes downward through the horizontal part of the mounting frame and is fixed with a gear, and the gear is meshed and connected with the gear ring.

[0013] Furthermore, a connecting pipe is fixedly passed through the circumference of the water pipe.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model solves the problem that the air filter element is prone to explosion when filtering explosive dust by arranging a stainless steel mesh cylinder, a water pipe, an atomizing nozzle, an upper end cover, a motor, and a rotating ring; a stainless steel mesh cylinder, a powder sintering core column, and an inner skeleton are fixedly arranged between the upper end cover and the lower end cover, and the air is filtered from the outside to the inside. A large amount of particulate impurities remain on the surface of the stainless steel mesh cylinder and the powder sintering core column. In this process, the water pipe is connected to an external water source through a connecting pipe. After being input into the water pipe, mist droplets are sprayed out through the atomizing nozzle, and the impurity particles on the outer surface of the stainless steel mesh cylinder are adhered to the impurity particles, so that the particles are quickly adsorbed, precipitation is generated and the impurities are cleaned up. Water droplets are injected to achieve an explosion-proof effect. The motor also drives the rotating ring to rotate to clean the outer wall of the entire stainless steel mesh cylinder (the length of the water pipe can be customized according to actual needs, and the length of the water pipe can be the same height as the stainless steel mesh cylinder). At the same time, the impurities filtered out by the powder sintered filter element are mostly on its outer surface. Because the inner wall of the stainless steel mesh cylinder is close to the outer wall of the powder sintered core column, the impurities on the surface of the powder sintered core column are also located in the filter holes of the stainless steel mesh cylinder. When the water pipe is cleaned, the impurities in the filter holes of the stainless steel mesh cylinder will also be cleaned out. The effect of atomization flushing is adopted to not only clean the impurities, but also make the dust moist, and no explosion will occur.

[0016] 2. The utility model solves the problems of slightly low filtration efficiency and short service life of conventional air filter elements by arranging a stainless steel mesh tube, a powder sintered core column and an inner skeleton. When filtering air, the air enters from the outside of the stainless steel mesh tube toward the inner cavity of the inner skeleton, and passes through the stainless steel mesh tube, the powder sintered core column and the inner skeleton in sequence. The inner skeleton also has a large number of fine mesh holes, which can also be used for filtration. The three-layer filtration operation makes the filtration accuracy higher. Secondly, the stainless steel mesh tube and the powder sintered core column can also be cleaned by spraying with a water pipe and an atomizing nozzle, thereby extending their service life, reducing costs and increasing service time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0018] Figure 1 A three-dimensional diagram of an air filter element for dust filtration and explosion prevention;

[0019] Figure 2 It is a cross-sectional view of an air filter element for dust filtration and explosion prevention;

[0020] Figure 3 This is a disassembled view of the upper end cover, stainless steel mesh tube, powder sintered core column, and inner skeleton after sectioning;

[0021] Figure 4 This is the structural diagram of the stainless steel mesh cylinder;

[0022] Figure 5It is the structural diagram of the powder sintered core column;

[0023] Figure 6 This is a structural diagram of the internal skeleton;

[0024] Figure 7 It is the connection diagram of the upper end cover, rotating ring, outer ring and water pipe;

[0025] Figure 8 It is the structural diagram of the upper end cover and the outer ring;

[0026] Fig. 9 This is the connection diagram of the rotating ring and the water pipe.

[0027] Reference numerals:

[0028] 1. Lower end cover; 2. Upper end cover; 201. Air outlet; 2011. Rubber ring; 202. Mounting frame; 203. Connecting strip; 204. Threaded ring 1; 205. Threaded ring 2; 3. Stainless steel mesh tube; 4. Powder sintered core column; 401. Card slot; 5. Inner skeleton; 6. Motor; 601. Gear; 7. Rotating ring; 701. Gear ring; 8. Water pipe; 801. Atomizing nozzle; 802. Connecting pipe; 9. Outer ring. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] See also Figure 1-9 As shown, the utility model is an air filter element for dust filtration and explosion-proof, comprising a lower end cover 1, an upper end cover 2, a stainless steel mesh tube 3, a powder sintered core column 4, an inner frame 5 and a water pipe 8, the stainless steel mesh tube 3, the powder sintered core column 4 and the inner frame 5 are fixed to the upper end of the lower end cover 1, and the stainless steel mesh tube 3, the powder sintered core column 4 and the inner frame 5 are arranged from outside to inside, and the upper end cover 2 is screwed and fixed on the stainless steel mesh tube 3 and the inner frame 5;

[0031] A stainless steel mesh tube 3, a powder sintered core column 4, and an inner frame 5 are fixedly arranged between the upper end cover 2 and the lower end cover 1, forming the main part of the filter element. When filtering air, the air enters from the outside of the stainless steel mesh tube 3 toward the inner cavity of the inner frame 5, and passes through the stainless steel mesh tube 3, the powder sintered core column 4, and the inner frame 5 in sequence. There are also a large number of fine meshes on the inner frame 5, which can also be used for filtering. The three-layer filtering operation makes the filtering accuracy higher;

[0032] An outer ring 9 is arranged outside the upper end cover 2, and a rotating ring 7 is rotatably arranged between the upper end cover 2 and the outer ring 9, a water pipe 8 is fixed at the bottom of the rotating ring 7, and the water pipe 8 is located outside the stainless steel mesh tube 3, and inclined and equidistantly distributed atomizing nozzles 801 are fixed on the outer periphery of the water pipe 8, and the air outlet direction of the atomizing nozzle 801 is toward the outer peripheral surface of the stainless steel mesh tube 3;

[0033] The stainless steel mesh tube 3 is provided with filter holes distributed at equal intervals on its periphery, and the inner wall of the stainless steel mesh tube 3 is in close contact with the outer wall of the powder sintered core column 4, and the inner wall of the powder sintered core column 4 is in close contact with the outer wall of the inner frame 5;

[0034] An outer ring 9 is arranged on the outer side of the upper end cover 2, and a rotating ring 7 is arranged between the upper end cover 2 and the outer ring 9. A water pipe 8 is installed on the rotating ring 7. After water is injected into the water pipe 8, it is sprayed out through the atomizing nozzle 801 to clean the surface of the stainless steel mesh tube 3, so that impurities on the surface slide down and settle. The motor 6 also drives the rotating ring 7 to rotate to clean the outer wall of the entire stainless steel mesh tube 3 (the length of the water pipe 8 can be customized according to the actual needs, and the length of the water pipe 8 can be the same height as the stainless steel mesh tube 3). At the same time, most of the impurities filtered out by the powder sintering filter element are on its outer surface. Because the inner wall of the stainless steel mesh tube 3 is close to the outer wall of the powder sintering core column 4, the impurities on the surface of the powder sintering core column 4 are also located in the filter holes of the stainless steel mesh tube 3. When the atomizing nozzle 801 sprays, the impurities in the filter holes of the stainless steel mesh tube 3 will also be cleaned out. The effect of atomizing flushing is adopted, which not only cleans the impurities, but also makes the dust moist, and will not cause explosion.

[0035] The bottom surface of the upper end cover 2 is fixed with a threaded ring 1 204 and a threaded ring 205, and the threaded ring 205 is located at the inner ring of the threaded ring 1 204; the threaded ring 1 204 is screwed into the threaded groove at the upper part of the inner wall of the stainless steel mesh tube 3, and the threaded ring 205 is screwed into the threaded groove at the upper part of the inner wall of the inner skeleton 5, and a slot 401 is opened at the upper end of the outer wall of the powder sintered core column 4, and the inner ring of the threaded ring 1 204 is in the slot 401;

[0036] The powder sintered core column 4 is the main filter material and needs to be replaced regularly. It is inserted between the stainless steel mesh tube 3 and the inner skeleton 5, and then the upper end cover 2 is screwed in. The threaded ring 1 204 at the bottom of the upper end cover 2 is screwed to the stainless steel mesh tube 3, and the threaded ring 205 is screwed to the inner skeleton 5 until the bottom surface of the upper end cover 2 contacts the upper end surface of the powder sintered core column 4. At this time, the screwing is completed, and part of the threaded ring 1 204 is still located in the slot 401. The powder sintered core column 4 is pressed tightly so that the inner wall of the stainless steel mesh tube 3 is close to the outer wall of the powder sintered core column 4, and the inner wall of the powder sintered core column 4 is close to the outer wall of the inner skeleton 5.

[0037] The upper end of the upper cover 2 and the upper end of the outer ring 9 are fixed with connecting strips 203 distributed in a ring array. An air outlet 201 is fixed through the upper cover 2, and a rubber ring 2011 is provided on the outer cover of the air outlet 201.

[0038] The connecting strip 203 is used to connect the upper end cover 2 and the outer ring 9, the air outlet 201 is used to discharge the filtered air, and the rubber ring 2011 is used to increase the sealing connection between the air outlet 201 and the air supply point, and different specifications can be changed according to actual needs.

[0039] The cross section of the rotating ring 7 is I-shaped, and the upper part of the rotating ring 7 extends out of the upper end cover 2 and the upper end of the outer ring 9, and the lower part of the rotating ring 7 also extends out of the upper end cover 2 and the lower end of the outer ring 9. A gear ring 701 is fixed on the upper end surface of the rotating ring 7, and the gear ring 701 is located on the inner side of all the connecting strips 203;

[0040] The special structural design of the rotating ring 7 enables it to rotate between the upper end cover 2 and the outer ring 9. The gear ring 701 is used to assist the subsequent rotation. When the gear ring 701 rotates, it is located inside the connecting strip 203 and will not cause motion interference.

[0041] An inverted U-shaped mounting frame 202 is also fixed to the upper end of the upper end cover 2, and a motor 6 is fixed to the upper end of the horizontal portion of the mounting frame 202. The output shaft of the motor 6 passes through the horizontal portion of the mounting frame 202 downward and is fixed with a gear 601, and the gear 601 is meshed and connected with the gear ring 701.

[0042] The mounting frame 202 assists in installing the motor 6. The motor 6 drives the gear 601 to rotate. The gear 601 engages with the transmission gear ring 701 to rotate it, thereby driving the rotating ring 7 to rotate, and then the water pipe 8 rotates to perform spraying along the outer circumference of the stainless steel mesh tube 3.

[0043] A connecting pipe 802 is also fixedly passed through the circumference of the water pipe 8; the connecting pipe 802 is a hose with a certain length placed in the filter and connected to an external water source.

[0044] The specific working principle of the utility model is as follows: first, a stainless steel mesh tube 3, a powder sintered core column 4, and an inner frame 5 are fixedly arranged between the upper end cover 2 and the lower end cover 1 to form the main part of the filter element. When installing the powder sintered core column 4, it is inserted between the stainless steel mesh tube 3 and the inner frame 5, and then the upper end cover 2 is screwed in, and the threaded ring 1 204 at the bottom of the upper end cover 2 is screwed with the stainless steel mesh tube 3, and the threaded ring 205 is screwed with the inner frame 5 until the bottom surface of the upper end cover 2 contacts the upper end surface of the powder sintered core column 4. At this time, the screw connection is completed, and the reverse operation can be performed when disassembling; when filtering air, it enters from the outside of the stainless steel mesh tube 3 toward the inner cavity of the inner frame 5, and passes through the stainless steel mesh tube 3 in sequence. , powder sintering core column 4, inner skeleton 5, the inner skeleton 5 also has a large number of fine meshes, which can also be used for filtering, the motor 6 works regularly, the motor 6 drives the gear 601 to rotate, the gear 601 engages the transmission gear ring 701 to rotate it, thereby driving the rotating ring 7 to rotate, and then the water pipe 8 rotates, the water pipe 8 is connected to the external water source through the connecting pipe 802, after being input into the water pipe 8, the mist droplets are sprayed out through the atomizing nozzle 801, and the impurity particles on the outer surface of the stainless steel mesh tube 3 are adhered to the particles so that they can be quickly adsorbed, and the precipitation slides down, thereby cleaning the impurities and moistening the dust, achieving the explosion-proof effect, and realizing comprehensive cleaning, thereby extending the service life of the powder sintering core column 4.

[0045] The above are only preferred embodiments of the present invention and do not limit the present invention. Any modification to the technical solutions recorded in the aforementioned embodiments and any equivalent replacement of some of the technical features therein, any modification, equivalent replacement, and improvement made are all within the protection scope of the present invention.

Claims

1. An air filter element for dust filtration and explosion prevention, comprising a lower end cover (1), an upper end cover (2), a stainless steel mesh cylinder (3), a powder sintered core column (4), an inner frame (5) and a water pipe (8), characterized in that: A stainless steel mesh cylinder (3), a powder sintered core column (4) and an inner frame (5) are fixed to the upper end of the lower end cover (1), and the stainless steel mesh cylinder (3), the powder sintered core column (4) and the inner frame (5) are arranged from the outside to the inside. An upper end cover (2) is screwed and fixed to the stainless steel mesh cylinder (3) and the inner frame (5). An outer ring (9) is arranged outside the upper end cover (2), and a rotating ring (7) is rotatably arranged between the upper end cover (2) and the outer ring (9). A water pipe (8) is fixed to the bottom of the rotating ring (7), and the water pipe (8) is located outside the stainless steel mesh cylinder (3). Inclined and equidistantly distributed atomizing nozzles (801) are fixed to the outer periphery of the water pipe (8), and the gas outlet direction of the atomizing nozzle (801) faces the outer peripheral surface of the stainless steel mesh cylinder (3).

2. The air filter element for dust filtration and explosion prevention according to claim 1, characterized in that: The stainless steel mesh cylinder (3) is provided with filter holes distributed at equal intervals on its circumference, and the inner wall of the stainless steel mesh cylinder (3) is in close contact with the outer wall of the powder sintered core column (4), and the inner wall of the powder sintered core column (4) is in close contact with the outer wall of the inner skeleton (5).

3. The air filter element for dust filtration and explosion prevention according to claim 1, characterized in that: A threaded ring 1 (204) and a threaded ring 2 (205) are fixed to the bottom surface of the upper end cover (2), and the threaded ring 2 (205) is located in the inner ring of the threaded ring 1 (204); the threaded ring 1 (204) is screwed into the threaded groove at the upper part of the inner wall of the stainless steel mesh tube (3), and the threaded ring 2 (205) is screwed into the threaded groove at the upper part of the inner wall of the inner skeleton (5); and a slot (401) is provided at the upper end of the outer wall of the powder sintered core column (4), and the inner ring of the threaded ring 1 (204) is located in the slot (401).

4. The air filter element for dust filtration and explosion prevention according to claim 1, characterized in that: The upper ends of the upper end cover (2) and the outer ring (9) are fixed with connecting strips (203) distributed in a ring array, an air outlet (201) is fixedly passed through the upper end cover (2), and a rubber ring (211) is provided on the outer cover of the air outlet (201).

5. The air filter element for dust filtration and explosion prevention according to claim 4, characterized in that: The cross section of the rotating ring (7) is I-shaped, and the upper part of the rotating ring (7) extends out of the upper end cover (2) and the upper end of the outer ring (9), and the lower part of the rotating ring (7) also extends out of the lower end of the upper end cover (2) and the outer ring (9). A toothed ring (701) is fixed on the upper end surface of the rotating ring (7), and the toothed ring (701) is located on the inner side of all the connecting strips (203).

6. The air filter element for dust filtration and explosion prevention according to claim 1, characterized in that: An inverted U-shaped mounting frame (202) is also fixed to the upper end of the upper end cover (2), and a motor (6) is fixed to the upper end of the horizontal portion of the mounting frame (202); an output shaft of the motor (6) passes downward through the horizontal portion of the mounting frame (202) and is fixed with a gear (601), and the gear (601) is meshedly connected with a gear ring (701).

7. The air filter element for dust filtration and explosion prevention according to claim 1, characterized in that: A connecting pipe (802) is also fixedly passed through the circumference of the water pipe (8).

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