Low-resistance air filter for chemical industry

Abstract

The low-resistance air filter comprises a filter box body, an inlet is formed in the left end of the filter box body, an outlet is formed in the right end of the filter box body, an air outlet pipe is installed at the position, corresponding to the outlet, of the right end of the filter box body, an induced draft fan is installed in the air outlet pipe, and a plurality of installation holes are formed in the upper end of the filter box body. A plurality of lifting grooves are symmetrically formed in the inner wall of the filter box front and back and located on the lower sides of the mounting holes, fixing rods are installed in the lifting grooves, the outer surfaces of the fixing rods are slidably connected with lifting blocks, the outer surfaces of the fixing rods are sleeved with first springs, the first springs are located on the lower sides of the lifting blocks, and a lifting plate is installed between the lifting blocks on the front side and the rear side. According to the utility model, a new filtering mechanism is mounted in another mounting hole, and then an old filtering mechanism is dismounted, so that the filtering mechanism is replaced, the filtering mechanism can be replaced in a normal working process, the working process is ensured, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of air filtration, in particular to a low-resistance air filter for chemical industry. Background Art

[0002] Chemical industry refers to the chemical industry. The use of chemical methods to change the composition or structure of substances or to synthesize new substances all belong to chemical production technology, that is, chemical processes. A lot of toxic gases will be produced in the chemical production process, so they need to be filtered with air filters before they can be discharged into the atmosphere. The air filter can provide a certain guarantee for the quality of the air environment. In the prior art, when replacing the filter plate in the air filter, the filtering work needs to be stopped before the filter plate in the air filter can be replaced, which affects the smoothness of the work and the work efficiency. Therefore, those skilled in the art provide a low-resistance air filter for chemical industry to solve the problems raised in the above background technology. Utility Model Content

[0003] In order to solve the above technical problems, the utility model provides a low resistance air filter for chemical industry, comprising a filter box, wherein the left end of the filter box is provided with an inlet, the right end of the filter box is provided with an outlet, an air outlet pipe is installed at the position of the right end of the filter box corresponding to the outlet, and an induced draft fan is installed inside the air outlet pipe, and a plurality of installation holes are provided at the upper end of the filter box;

[0004] A plurality of lifting slots are symmetrically provided on the inner wall of the filter box body, and the lifting slots are located at the lower side of the mounting hole. A fixing rod is installed inside the lifting slot. The outer surface of the fixing rod is slidably connected to the lifting block. A spring 1 is sleeved on the outer surface of the fixing rod, and the spring 1 is located at the lower side of the lifting block. A lifting plate is installed between the lifting blocks on the front and rear sides, and a blocking block is installed on the upper end of the lifting plate. Fixed blocks are arranged on the front and rear sides of the mounting hole, and the fixed blocks are installed on the upper end of the filter box body. A clamping hole is provided inside the fixed block.

[0005] A filter mechanism is arranged inside the filter box, and the filter mechanism includes a top plate and a filter plate. The filter plate is installed at the lower end of the top plate, and matching holes are symmetrically arranged at the upper end of the top plate, and the matching holes correspond to the positions of the fixed blocks. A slide groove is symmetrically arranged at the upper end of the top plate, and a buckle block is slidably connected inside the slide groove. A guide rod is symmetrically installed inside the slide groove, and the guide rod passes through the buckle block. Two springs are sleeved on the outer surface of the guide rod, and a clamping block is installed at one end of the buckle block, and the clamping block passes through one side of the matching hole.

[0006] Preferably, the width of the mounting hole is the same as the width of the inner wall of the filter box.

[0007] Preferably, the length of the lifting plate is greater than the length of the mounting hole.

[0008] Preferably, the length and width of the blocking block are the same as the length and width of the mounting hole.

[0009] Preferably, the width of the filter plate is the same as the width of the mounting hole.

[0010] Preferably, a handle is installed on the upper end of the top plate.

[0011] Preferably, a buckle groove is provided at the upper end of the buckle block.

[0012] Technical effects and advantages of the utility model:

[0013] The utility model first installs a new filter mechanism in another installation hole, and then disassembles the old filter mechanism, thereby completing the replacement of the filter mechanism. The filter mechanism can be replaced during normal working process, ensuring workflow and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of this application;

[0015] Figure 2 It is a structural schematic diagram of the filter box of this application;

[0016] Figure 3 It is a structural schematic diagram of the filtering mechanism of the present application;

[0017] In the figure: 1. filter box; 101. filter mechanism; 2. inlet; 3. air outlet duct; 4. mounting hole; 5. lifting slot; 6. fixing rod; 7. lifting block; 8. spring one; 9. lifting plate; 10. blocking block; 11. fixing block; 12. clamping hole; 13. top plate; 14. filter plate; 15. handle; 16. matching hole; 17. slide slot; 18. buckle and pull block; 19. guide rod; 20. spring two; 21. clamping block. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific purposes.

[0019] See also Figures 1 to 3In the present embodiment, a low-resistance air filter for chemical use is provided, comprising a filter box 1, wherein an inlet 2 is arranged at the left end of the filter box 1, an outlet is arranged at the right end of the filter box 1, an air outlet 3 is installed at the position corresponding to the outlet at the right end of the filter box 1, and an induced draft fan is installed inside the air outlet 3, a plurality of mounting holes 4 are arranged at the upper end of the filter box 1, and the width of the mounting holes 4 is the same as the width of the inner wall of the filter box 1, a plurality of lifting grooves 5 are symmetrically arranged on the inner wall of the filter box 1, and the lifting grooves 5 are located at the lower side of the mounting hole 4, a fixing rod 6 is installed inside the lifting groove 5, and a lifting block 7 is slidably connected to the outer surface of the fixing rod 6, a spring 8 is sleeved on the outer surface of the fixing rod 6, and the spring 8 is located at the lower side of the lifting block 7, a lifting plate 9 is installed between the lifting blocks 7 on the front and rear sides, and the length of the lifting plate 9 is greater than the length of the mounting hole 4, a blocking block 10 is installed at the upper end of the lifting plate 9, and the length and width of the blocking block 10 are both the same as the length of the mounting hole 4 and width are the same, fixing blocks 11 are arranged on the front and rear sides of the mounting hole 4, and the fixing block 11 is installed on the upper end of the filter box body 1, and a clamping hole 12 is arranged inside the fixing block 11, and a filtering mechanism 101 is arranged inside the filter box body 1, and the filtering mechanism 101 comprises a top plate 13 and a filter plate 14, and the filter plate 14 is installed at the lower end of the top plate 13, and the width of the filter plate 14 is the same as the width of the mounting hole 4, a handle 15 is installed on the upper end of the top plate 13, and a matching hole 16 is symmetrically arranged on the upper end of the top plate 13, and the matching hole 16 corresponds to the position of the fixing block 11, and a slide groove 17 is symmetrically arranged on the upper end of the top plate 13, and a buckle pull block 18 is slidably connected inside the slide groove 17, and a buckle pull groove is arranged on the upper end of the buckle pull block 18, and a guide rod 19 is symmetrically installed inside the slide groove 17, and the guide rod 19 passes through the buckle pull block 18, and a spring 20 is sleeved on the outer surface of the guide rod 19, and a clamping block 21 is installed at one end of the buckle pull block 18, and the clamping block 21 passes through one side of the matching hole 16.

[0020] The working principle of the utility model is as follows: when the filter mechanism 101 needs to be replaced, the lower end of the filter plate 14 of the new filter mechanism 101 is inserted into another mounting hole 4, the lower end of the filter plate 14 pushes the blocking block 10 and the lifting plate 9 down, the lifting plate 9 drives the lifting block 7 to descend and compresses the spring 1 8, so that the lifting plate 9 descends to the bottom of the filter box 1, and the filter plate 14 is placed in the filter box 1. At the same time, the top plate 13 covers the upper end of the mounting hole 4, so that the fixing block 11 is inserted into the matching hole 16, and the buckle pull block 18 is pushed to move by the spring 20, and the buckle pull block 18 drives the clamping block 21 to be inserted into the clamping hole 12 to fix the position of the filter plate 14;

[0021] Then, remove the other filter mechanism 101, push the buckle and pull block 18 of the old filter mechanism 101 to move the compression spring 20, and the buckle and pull block 18 drives the clamping block 21 to leave the clamping hole 12, and pull the old filter mechanism 101 out of the mounting hole 4. At the same time, the lifting plate 9 is pushed to rise as the filter mechanism 101 rises through the spring 18. When the old filter mechanism 101 leaves the mounting hole 4, the lifting plate 9 pushes the upper end of the blocking block 10 to block in the mounting hole 4, thereby completing the disassembly of the old filter mechanism 101.

[0022] By setting up an induced draft fan, low air pressure can be quickly formed inside the air filter, so that the air pressure difference between it and the external environment can be increased in a short time, accelerating the external air to enter the interior of the air filter and improving the filtration efficiency.

[0023] Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field and related fields without creative work should fall within the scope of protection of the present invention. Structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to conventional means in the field unless otherwise specified and limited.

Claims

1. A low resistance air filter for chemical industry, comprising a filter housing (1), characterized in that: The filter box (1) is provided with an inlet (2) at the left end, and an outlet is provided at the right end of the filter box (1); an air outlet pipe (3) is installed at a position on the right end of the filter box (1) corresponding to the outlet, and an induced draft fan is installed inside the air outlet pipe (3); and a plurality of installation holes (4) are provided at the upper end of the filter box (1); A plurality of lifting grooves (5) are symmetrically provided on the inner wall of the filter box (1) at the front and rear sides, and the lifting grooves (5) are located at the lower side of the mounting hole (4). A fixing rod (6) is installed inside the lifting groove (5), and the outer surface of the fixing rod (6) is slidably connected to the lifting block (7). A spring (8) is sleeved on the outer surface of the fixing rod (6), and the spring (8) is located at the lower side of the lifting block (7). A lifting plate (9) is installed between the lifting blocks (7) at the front and rear sides, and a blocking block (10) is installed at the upper end of the lifting plate (9). A fixing block (11) is provided at the front and rear sides of the mounting hole (4), and the fixing block (11) is installed at the upper end of the filter box (1), and a clamping hole (12) is provided inside the fixing block (11); A filter mechanism (101) is arranged inside the filter box (1), and the filter mechanism (101) comprises a top plate (13) and a filter plate (14), the filter plate (14) being mounted on the lower end of the top plate (13), a matching hole (16) being symmetrically provided on the upper end of the top plate (13), and the matching hole (16) corresponding to the position of the fixed block (11), a slide groove (17) being symmetrically provided on the upper end of the top plate (13), a buckle block (18) being slidably connected inside the slide groove (17), a guide rod (19) being symmetrically installed inside the slide groove (17), and the guide rod (19) passing through the buckle block (18), a spring (20) being sleeved on the outer surface of the guide rod (19), and a clamping block (21) being mounted on one end of the buckle block (18), and the clamping block (21) passing through one side of the matching hole (16).

2. A low resistance air filter for chemical industry according to claim 1, characterized in that: The width of the mounting hole (4) is the same as the width of the inner wall of the filter box (1).

3. A low resistance air filter for chemical industry according to claim 1, characterized in that: The length of the lifting plate (9) is greater than the length of the mounting hole (4).

4. A low resistance air filter for chemical industry according to claim 1, characterized in that: The length and width of the blocking block (10) are the same as the length and width of the mounting hole (4).

5. A low resistance air filter for chemical industry according to claim 1, characterized in that: The width of the filter plate (14) is the same as the width of the mounting hole (4).

6. A low resistance air filter for chemical industry according to claim 1, characterized in that: A handle (15) is mounted on the upper end of the top plate (13).

7. A low resistance air filter for chemical industry according to claim 1, characterized in that: A buckling groove is provided at the upper end of the buckling block (18).

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