Multi-layer purification air filter

Abstract

The utility model discloses a multi-layer purification air filter, and relates to the technical field of air filtration. The device comprises a shell, a collecting box, a top plate, a header pipe and a bottom plate, the bottom plate is fixed to the bottom of the shell, the shell is arranged above the collecting box, the top plate is fixed to the top of the shell, rails distributed at equal intervals are fixed to the two inner side walls of the shell, and a filter screen is jointly inserted between every two opposite rails; a header pipe is arranged above the top plate, branch pipes are fixed to the lower portion of the periphery of the header pipe in a penetrating mode, the bottom ends of the branch pipes penetrate through the top plate, stretch into the shell and are fixedly provided with injection pipes in a penetrating mode, and inclined air nozzles distributed at equal intervals are fixed to the periphery of the injection pipes. Through the arrangement of the filter screen, the shell, the collecting box, the header pipe, the blowing pipe, the air cylinder and the air tap, the problems that the filtering precision of a single filter material is insufficient, and the service cycle and the service life of the filter material of the air filter are short are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of air filtration, in particular to a multi-layer purification air filter. Background Art

[0002] The full name of air filter is air cleaner. Its main function is to filter out dust, sand and other impurities in the air to ensure that the air entering the equipment (such as engines, gearboxes, etc.) is clean and prevent impurities from entering the equipment and causing wear, damage and other problems. Air filter is used to filter external dust, etc. Conventional air filters mostly use filter materials such as filter screens to filter and purify to achieve the effect of isolating dust, but there are still the following disadvantages in actual filtering and purification operations:

[0003] 1. The air filter uses various filter materials to filter and purify the gas, but most air filters have a single layer of filter material, which cannot effectively filter a large amount of impurities. There will always be some impurities that pass through the filter material, resulting in poor filtering effect, and the filtering accuracy still needs to be improved;

[0004] 2. Secondly, the filter materials of most air filters are consumable or disposable, which requires frequent replacement of the filter materials. Firstly, it increases the cost and shortens the service life. Secondly, the working cycle becomes shorter and it cannot work continuously for a long time. Utility Model Content

[0005] The utility model aims to provide a multi-layer purification air filter, which solves the problems of insufficient filtering accuracy of a single filter material and short service life and service life of the air filter material by arranging a filter screen, a shell, a collection box, a main pipe, a blowing pipe, a cylinder and an air nozzle.

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

[0007] The utility model is a multi-layer purification air filter, comprising an outer shell, a collection box, a top plate, a main pipe and a bottom plate, wherein the bottom of the outer shell is fixed with the bottom plate, and the outer shell is placed above the collection box, the top plate is fixed with the top plate on the top of the outer shell, and tracks distributed at equal distances are fixed on both inner side walls of the outer shell, and a filter screen is commonly inserted between every two opposite tracks; a main pipe is arranged above the top plate, a branch pipe is fixed through the lower part of the outer periphery of the main pipe, the bottom end of the branch pipe penetrates the top plate and extends into the outer shell and is fixed with a blowing pipe, and the outer periphery of the blowing pipe is fixed with inclined and equidistantly distributed air nozzles.

[0008] Furthermore, the bottom end of the shell contacts the top end of the collection box, the bottom plate is placed in the upper port of the collection box, and the cross-sectional dimension of the collection box is larger than the cross-sectional dimension of the shell.

[0009] Furthermore, the bottom surface of the shell is provided with equally distributed through grooves, and a through groove is arranged between every two adjacent filter screens. The bottom plate is provided with equally distributed ash guide grooves with inverted trapezoidal cross-sections, and an ash guide groove is arranged under each through groove.

[0010] Furthermore, a hinge is fixed to the bottom surface of the base plate under each of the ash guide grooves, and a baffle is hingedly connected to each hinge, and the baffle is located directly below the ash guide groove and completely blocks it. Two tension springs are hung on the side of the baffle away from the hinge, and the other end of the tension spring is hung on the bottom surface of the base plate.

[0011] Furthermore, an inlet is fixedly passed through one end of the shell, an outlet is fixedly passed through the other end, and triangular bars are fixedly provided on the inner bottom edge of the shell below the inlet and the outlet.

[0012] Furthermore, a vertical lever is fixed at the bottom center of the blowing pipe, and blowing pipes are arranged on both sides of each filter screen, and the angle between the air nozzle and the horizontal plane is 45°.

[0013] Furthermore, a cylinder is fixed to the upper end of the top plate, and a connecting plate is fixed to the piston rod of the telescopic end of the cylinder, a connecting rod is fixed at the upper center of the main pipe, and the upper end of the connecting rod is fixedly connected to the bottom surface of the connecting plate.

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

[0015] 1. The utility model solves the problem of insufficient filtering accuracy of a single filter material by providing a filter screen and a housing; a plurality of filter screens are plugged into the housing, and a corresponding frame is provided outside the filter screen to enhance the structural strength. During filtering, the air is guided out from the inlet to the outlet. During this process, the air needs to pass through all the filter screens in the housing to achieve multi-layer filtering processing and achieve higher filtering accuracy.

[0016] 2. The utility model solves the problems of short service life and short use period of air filter material by arranging a shell, a collection box, a main pipe, a blow pipe, a cylinder and an air nozzle; the filter screen adopts high-strength consumables such as stainless steel, can be used for a long time, and prolongs its service life; secondly, backblowing can be realized, and the dust filtered on the filter screen is blown off to achieve the effect of cleaning the filter screen, so that it can be used for a longer time, and there is no need to disassemble and replace it for a long time, etc., to prolong the service life, wherein the main pipe is connected to an external air source, which is input into the blow pipe through a branch pipe, and sprayed out from the air nozzle at an angle, and sprayed from the reverse side of the filter screen (the side facing the inlet is the front side), and the dust adhering to the front side is blown off, and the cylinder works to move the main pipe up and down, so that the blow pipe can be moved up and down, thereby performing a comprehensive backblowing operation on the filter screen, and when the blow pipe moves to a low position, the lever at its bottom will push the baffle open, so that the swept dust falls into the collection box to complete the collection. 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 a multi-layer purification air filter;

[0019] Figure 2 This is a state diagram of the main pipe moving after the shell is cut away;

[0020] Figure 3 is a cross-sectional view of the housing;

[0021] Figure 4 This is a structural diagram of the collection box;

[0022] Figure 5 for Figure 2 Bottom view of

[0023] Figure 6 for Figure 5 A magnified view of the structure at A;

[0024] Figure 7 It is a three-dimensional diagram of the main pipe and its auxiliary structures.

[0025] Reference numerals:

[0026] 1. Shell; 101. Inlet; 102. Outlet; 103. Cylinder; 104. Connecting plate; 105. Track; 106. Triangle bar; 107. Through slot; 2. Collecting box; 3. Top plate; 4. Main pipe; 401. Connecting rod; 402. Branch pipe; 403. Blowing pipe; 404. Air nozzle; 405. Push rod; 5. Bottom plate; 501. Ash guide slot; 502. Hinge; 503. Baffle; 504. Tension spring; 6. Filter. DETAILED DESCRIPTION

[0027] 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.

[0028] See also Figure 1-7As shown, the utility model is a multi-layer purification air filter, including a shell 1, a collection box 2, a top plate 3, a main pipe 4 and a bottom plate 5. The bottom of the shell 1 is fixed with the bottom plate 5, and the shell 1 is placed above the collection box 2. The top plate 3 is fixed on the top of the shell 1. Both inner side walls of the shell 1 are fixed with equally distributed tracks 105, and a filter screen 6 is commonly inserted between every two opposite tracks 105; a main pipe 4 is arranged above the top plate 3, and a branch pipe 402 is fixed through the lower part of the outer periphery of the main pipe 4, and the bottom end of the branch pipe 402 penetrates the top plate 3 and extends into the shell 1 and is fixed with a blowing pipe 403, and the outer periphery of the blowing pipe 403 is fixed with an inclined and equally distributed air nozzle 404;

[0029] The outer shell 1 is the center of the overall frame. The filtering and purification process is carried out in the outer shell 1. The bottom end of the outer shell 1 is closed by the bottom plate 5, but corresponding pores are left. The dust filtered and purified in the outer shell 1 will enter the collection box 2 for collection. The top plate 3 is fixed at the upper end of the outer shell 1 for distribution. The top plate 3 and the outer shell 1 are detachably fixed by fasteners such as bolts (not shown in the figure); multiple filter screens 6 are plugged in the outer shell 1 using rails 105 to achieve the effect of multi-layer filtering and purification, and the main pipe 4 is connected to an external air source (not shown in the figure), and works intermittently synchronously with the cylinder 103. The cylinder 103 can drive the main pipe 4 to rise and fall, thereby causing the branch pipe 402 and the blowing pipe 403 to rise and fall synchronously. The gas is finally ejected from the air nozzle 404 and sprayed to the reverse side of the filter screen 6, thereby blowing off the dust blocked by the front side of the filter screen 6 to achieve the effect of backblowing cleaning.

[0030] The bottom end of the housing 1 contacts the top end of the collecting box 2, the bottom plate 5 is placed in the upper end of the collecting box 2, and the cross-sectional dimension of the collecting box 2 is larger than the cross-sectional dimension of the housing 1;

[0031] The bottom plate 5 at the bottom end of the shell 1 extends into the collection box 2. The collection box 2 and the shell 1 are detachable and can also be fixed with bolts, nuts and other fasteners to strengthen the fixation. The collection box 2 is used to collect the backblown dust.

[0032] The bottom surface of the housing 1 is provided with equally spaced through grooves 107, and a through groove 107 is provided between every two adjacent filter screens 6. Ash guide grooves 501 with equally spaced distribution and inverted trapezoidal cross-section are provided through the bottom plate 5, and an ash guide groove 501 is provided under each through groove 107.

[0033] When the filter screen 6 is back-blown and cleaned, dust falls, passes through the through slot 107 and the ash guide slot 501, and enters the collection box 2. The cross section of the guide slot is an inverted trapezoidal structure, which is more convenient for ash guide.

[0034] A hinge 502 is fixed to the bottom surface of the bottom plate 5 under each ash guide groove 501, and a baffle 503 is hingedly connected to each hinge 502. The baffle 503 is located directly below the ash guide groove 501 and completely blocks it. Two tension springs 504 are hung on one side of the baffle 503 away from the hinge 502, and the other end of the tension spring 504 is hung on the bottom surface of the bottom plate 5;

[0035] When the blowing tube 403 moves to a lower position, the lever 405 at the bottom thereof will push open the baffle 503. At this time, a certain gap will be left between the baffle 503 and the ash guide groove 501, so that dust can pass through the ash guide groove 501 and enter the collecting box 2. When the blowing tube 403 moves upward, the lever 405 moves upward, and the baffle 503 is restored to its original position under the action of the tension spring 504 and keeps the bottom of the ash guide groove 501 blocked.

[0036] An inlet 101 is fixed through one end of the housing 1, and an outlet 102 is fixed through the other end, and a triangular bar 106 is fixed on the inner bottom edge of the housing 1 below the inlet 101 and the outlet 102;

[0037] When the air is filtered and purified, it is introduced from the inlet 101 and discharged from the outlet 102. The design of the triangular bar 106 makes it convenient to avoid a right-angle structure at the bottom of the inner end wall of the shell 1 during back-blowing and cleaning, so that dust can slide down into the through groove 107.

[0038] A vertical lever 405 is fixed at the bottom center of the blowing tube 403, and blowing tubes 403 are arranged on both sides of each filter screen 6, and the angle between the air nozzle 404 and the horizontal plane is 45 degrees.

[0039] A cylinder 103 is also fixed to the upper end of the top plate 3, and a connecting plate 104 is fixed to the piston rod of the telescopic end of the cylinder 103. A connecting rod 401 is fixed at the upper center of the main pipe 4, and the upper end of the connecting rod 401 is fixedly connected to the bottom surface of the connecting plate 104.

[0040] When the cylinder 103 works, the piston rod at its telescopic end telescopes up and down, driving the connecting plate 104 to telescope. Since the connecting plate 104 is connected to the connecting rod 401, it also drives the connecting rod 401 and the main pipe 4 to telescope up and down.

[0041] The specific working principle of the utility model is as follows: first, when the air is filtered and purified, it is introduced from the inlet 101 and discharged from the outlet 102. During this process, multiple filter screens 6 are plugged in the housing 1 using the track 105, and the air needs to pass through all the filter screens 6 in the housing 1 to achieve multi-layer filtering treatment; after a period of time, the filter screens 6 are cleaned, the main pipe 4 is connected to the external air source, and works intermittently and synchronously with the cylinder 103. When the cylinder 103 is working, the piston rod at its telescopic end is telescoped up and down, driving the connecting plate 104 to telescope. Because the connecting plate 104 is connected to the connecting rod 401, it will also drive the connecting rod 401 and the main pipe 4 to telescope up and down, thereby causing the branch pipe 103 to extend and retract. 402 and the blowing pipe 403 are raised and lowered synchronously, and the gas is finally ejected from the gas nozzle 404 to the back side of the filter 6, thereby blowing down the dust blocked by the front side of the filter 6. When the blowing pipe 403 moves to a lower position, the lever 405 at the bottom thereof will push open the baffle 503. At this time, a certain gap will leak out between the baffle 503 and the ash guide groove 501, and the dust will pass through the ash guide groove 501 into the collecting box 2. When the blowing pipe 403 moves up, the lever 405 moves up, and the baffle 503 is restored to its original position under the action of the tension spring 504 and keeps the bottom of the ash guide groove 501 blocked, completing the backblowing operation and making the working cycle of the filter 6 longer.

[0042] 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. A multi-layer purification air filter, comprising a housing (1), a collecting box (2), a top plate (3), a main pipe (4) and a bottom plate (5), characterized in that: A bottom plate (5) is fixed to the bottom of the shell (1), and the shell (1) is placed above the collecting box (2). A top plate (3) is fixed to the top of the shell (1). Tracks (105) distributed at equal intervals are fixed to both inner side walls of the shell (1), and a filter screen (6) is inserted between every two opposing tracks (105). A main pipe (4) is arranged above the top plate (3), and a branch pipe (402) is fixedly passed through the lower part of the outer periphery of the main pipe (4). The bottom end of the branch pipe (402) passes through the top plate (3) and extends into the shell (1) and is fixedly passed through a blowing pipe (403), and an inclined and equally distributed air nozzle (404) is fixedly passed through the outer periphery of the blowing pipe (403).

2. A multi-layer purification air filter according to claim 1, characterized in that: The bottom end of the shell (1) contacts the top end of the collection box (2), the bottom plate (5) is placed in the upper end of the collection box (2), and the cross-sectional dimension of the collection box (2) is larger than the cross-sectional dimension of the shell (1).

3. A multi-layer purification air filter according to claim 1, characterized in that: The bottom surface of the housing (1) is provided with through grooves (107) distributed at equal intervals, and a through groove (107) is provided between every two adjacent filter screens (6); ash guide grooves (501) distributed at equal intervals and having an inverted trapezoidal cross section are provided through the bottom plate (5), and an ash guide groove (501) is provided below each through groove (107).

4. A multi-layer purification air filter according to claim 3, characterized in that: A hinged member (502) is fixed to the bottom surface of the bottom plate (5) under each of the ash guide grooves (501), and a baffle (503) is hingedly connected to each of the hinged members (502). The baffle (503) is located directly below the ash guide groove (501) and completely blocks it. Two tension springs (504) are hung on a side of the baffle (503) away from the hinged member (502), and the other end of the tension spring (504) is hung on the bottom surface of the bottom plate (5).

5. The multi-layer purification air filter according to claim 1, characterized in that: An inlet (101) is fixedly passed through one end of the shell (1), and an outlet (102) is fixedly passed through the other end, and triangular bars (106) are fixedly passed through the inner bottom edge of the shell (1) below the inlet (101) and the outlet (102).

6. The multi-layer purification air filter according to claim 1, characterized in that: A vertical lever (405) is fixed at the bottom center of the blowing pipe (403), and blowing pipes (403) are arranged on both sides of each filter screen (6), and the angle between the air nozzle (404) and the horizontal plane is 45 degrees.

7. The multi-layer purification air filter according to claim 1, characterized in that: A cylinder (103) is also fixed to the upper end of the top plate (3), and a connecting plate (104) is fixed to the piston rod at the telescopic end of the cylinder (103). A connecting rod (401) is fixed at the upper center of the main pipe (4), and the upper end of the connecting rod (401) is fixedly connected to the bottom surface of the connecting plate (104).

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