Pretreatment equipment for multi-stage filtration of pollution source particles

Abstract

The utility model relates to pretreatment equipment for multi-stage filtration of pollution source particles, which belongs to the technical field of waste gas treatment equipment and comprises a shell, a filter mechanism for multi-stage filtration of pollution source particles is arranged at the top of the left side of the shell, a replacement mechanism is arranged on the left side of the filter mechanism, and a plurality of heating wires are placed in an inner cavity of the shell. The right side of the shell communicates with an air guide cover; the filtering mechanism comprises a collecting box fixed to the top of the left side of the shell, a filter screen is arranged in an inner cavity of the collecting box, a sliding groove is formed in the right side wall of the inner cavity of the collecting box, and a sealing plate is fixed to the right side of the filter screen. According to the pretreatment equipment for multi-stage filtration of pollution source particles, the particles in a gas pollution source can be subjected to multi-stage filtration through the arranged filter screen, and liquid water in the gas pollution source can be heated and evaporated when the gas pollution source enters the shell, so that pretreatment is performed before the gas pollution source is monitored, and the accuracy of a gas pollution source monitoring result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment equipment, in particular to pre-treatment equipment for multi-stage filtration of pollution source particles. Background Art

[0002] With the development of science and technology and the country's strict requirements on pollution source emissions, the performance requirements for online monitoring systems for pollution sources are becoming increasingly higher. The online monitoring system for gas pollution sources mainly provides advanced management and monitoring methods for environmental protection, realizes monitoring and early warning, and prevents problems from happening.

[0003] Through searching, it is found that Chinese patent publication number: CN207528529U discloses a gas pollution source pretreatment device, which is composed of an insulation box, a sampling tube, a shunt tube, a heating plate, a filter, a needle valve, a pneumatic angle gate valve, and a solenoid valve. The device is characterized in that an electric heating plate is laid in the insulation box, a filter is arranged on the electric heating plate, a filter element is arranged in the filter, the outer end of the filter extends out of the insulation box, and a filter nozzle is arranged to facilitate connection with the subsequent detection equipment. A shunt tube is welded at the inner end of the filter to connect the sample gas sampling tube and the pressure regulating air pipe, a needle valve is arranged at the outer end of the pressure regulating air pipe, a sampling head is arranged at the outer end of the sampling tube, the sampling tube is connected with a solenoid valve and a pneumatic angle gate valve through a three-way connection, the pneumatic angle gate valve is connected to the shunt tube through an elbow, and the solenoid valve is connected to the compressed air source. The advantage is that the particulate matter in the sample gas is filtered and the liquid water is fully gasified, which is beneficial to improve the overall detection accuracy of the system and has a driving effect on realizing the automation and intelligence of the instrument. However, the diameters of the particles in the pollution source are different, and the pollution source particles cannot be completely filtered by the filter element, which reduces the effect of the pretreatment. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a pretreatment device for multi-stage filtration of pollution source particles, which has the advantages of being able to filter pollution source particles at multiple stages, and solves the problem that the diameters of particles in the pollution source are different, and the pollution source particles cannot be completely filtered through the set filter element, thereby reducing the pretreatment effect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pretreatment device for multi-stage filtration of pollution source particles, comprising a shell, a filtering mechanism for multi-stage filtration of pollution source particles is provided on the top of the left side of the shell, a disassembly mechanism is provided on the left side of the filtering mechanism, a plurality of electric heating wires are placed in the inner cavity of the shell, and an air guide cover is connected to the right side of the shell;

[0006] The filtering mechanism includes a collecting box fixed on the top left side of the shell, the inner cavity of the collecting box is provided with a filter screen, the right side wall of the inner cavity of the collecting box is provided with a slide groove, a sealing plate is fixed on the right side of the filter screen, a sliding block is fixed on the right side of the sealing plate, the lower surface of the collecting box is connected to an air outlet pipe, and the other end of the air outlet pipe is fixed with an electromagnetic switch valve.

[0007] Furthermore, the shape of the collecting box is a rectangular parallelepiped with a hollow interior and a missing upper surface, and the size of the inner cavity of the sliding groove is adapted to the size of the sliding block.

[0008] Furthermore, the number of the filter screens is not less than two and the aperture of the upper filter screen is larger than the aperture of the lower filter screen, and the number of the filter screens is equal to the number of the chutes.

[0009] Furthermore, the size of the sealing plate is larger than the size of the inner cavity of the slide groove, and the other end of the electromagnetic switch valve is fixed to the left side of the shell and communicated with the inner cavity of the shell.

[0010] Furthermore, the disassembly and replacement mechanism includes a slot opened on the left side of the collection box, a fixed rod is fixed on the left side of the collection box, a movable rod is slidably connected to the inner cavity of the fixed rod, a telescopic rod is fixed between the movable rod and the side opposite to the right side wall of the inner cavity of the fixed rod, a spring is movablely sleeved on the outer surface of the telescopic rod, and both ends of the spring are respectively fixedly connected to the movable rod and the side opposite to the right side wall of the inner cavity of the fixed rod, the left side of the movable rod is rotatably connected to a guide plate through a bearing, and a clamping rod is fixed to the bottom of the right side of the guide plate.

[0011] Furthermore, the outer diameter of the clamping rod is matched with the inner diameter of the slot, and the cross-sectional shape of the guide plate is an inverted S shape.

[0012] Furthermore, a slot is provided on the left side of the filter screen, the outer diameter of the clamping rod is matched with the inner diameter of the slot, and the right side of the clamping rod penetrates the shell and extends to the inner cavity of the slot.

[0013] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0014] 1. The pretreatment equipment for multi-stage filtration of pollution source particles can perform multi-stage filtration on particles in the gas pollution source through the set filter screen, and can also heat and evaporate the liquid water in the gas pollution source when the gas pollution source enters the shell, thereby performing pretreatment before monitoring the gas pollution source, thereby improving the accuracy of the gas pollution source monitoring results.

[0015] 2. The pretreatment equipment for multi-stage filtration of pollution source particles can facilitate users to replace the filter by cooperating with each other through the arrangement of slots, fixed rods, movable rods, telescopic rods, springs, guide plates and clamping rods, and can limit the position of the clamping rods, which not only improves the filtering effect of the filter, but also improves the efficiency of replacing the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the filter mechanism of the utility model;

[0018] Figure 3 This is a schematic diagram of the inner cavity structure of the collection box of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the dismantling mechanism of the utility model.

[0020] In the figure: 1 shell, 2 filtering mechanism, 201 collecting box, 202 filter screen, 203 slide groove, 204 sealing plate, 205 slider, 206 air outlet pipe, 207 electromagnetic switch valve, 3 disassembly mechanism, 301 slot, 302 fixed rod, 303 movable rod, 304 telescopic rod, 305 spring, 306 guide plate, 307 clamping rod, 4 heating wire, 5 air guide cover. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1 In this embodiment, a pretreatment device for multi-stage filtration of pollution source particles includes a shell 1. A filtering mechanism 2 for multi-stage filtration of pollution source particles is provided on the top of the left side of the shell 1. A disassembly mechanism 3 is provided on the left side of the filtering mechanism 2. A plurality of heating wires 4 are placed in the inner cavity of the shell 1. The right side of the shell 1 is connected to an air guide hood 5.

[0023] See also Figure 2In order to perform multi-stage filtration on the particles in the gas pollution source, the filtering mechanism 2 in this embodiment includes a collection box 201 fixed on the top left side of the shell 1, the inner cavity of the collection box 201 is provided with a filter screen 202, and a slide groove 203 is opened on the right side wall of the inner cavity of the collection box 201. A sealing plate 204 is fixed to the right side of the filter screen 202, and a slider 205 is fixed to the right side of the sealing plate 204. The lower surface of the collection box 201 is connected to an air outlet pipe 206, and an electromagnetic switch valve 207 is fixed to the other end of the air outlet pipe 206. The right side of the air guide cover 5 is connected to the detection equipment, and the heating wire 4 is connected to the power supply to increase the temperature of the inner cavity of the shell 1, and then the electromagnetic switch valve 207 is opened to allow the gas pollution source to enter the inner cavity of the collection box 201. The gas pollution source entering the inner cavity of the collection box 201 will be filtered by the three-layer filter screen 202, and the pollution source particles can be filtered out in turn.

[0024] Among them, the shape of the collection box 201 is a rectangular parallelepiped with a hollow interior and a missing upper surface, the size of the inner cavity of the slide groove 203 is compatible with the size of the slider 205, the number of filter screens 202 is not less than two and the aperture of the upper filter screen 202 is larger than the aperture of the lower filter screen 202, the number of filter screens 202 is equal to the number of slide grooves 203, the size of the sealing plate 204 is larger than the size of the inner cavity of the slide groove 203, and the other end of the electromagnetic switch valve 207 is fixed to the left side of the shell 1 and is connected to the inner cavity of the shell 1.

[0025] It should be noted that the filtered gas pollution source can enter the inner cavity of the shell 1 through the outlet pipe 206. After being heated by the heating wire 4, the liquid water in the gas pollution source can be evaporated, and then enter the detection equipment through the air guide cover 5 for detection, thereby performing pretreatment before monitoring the gas pollution source, thereby improving the accuracy of the gas pollution source monitoring results.

[0026] In addition, a sealing door is hingedly connected to the left end of the collection box 201 through a door hinge.

[0027] See also Figure 3-4The cam 306 is a substantially parallelogram of the cam 308 and the cam 309 is a substantially parallelogram of the cam 309. The cam 307 is a substantially parallelogram of the cam 308 and the cam 309 is a substantially parallelogram of the cam 309. The cam 307 is a substantially parallelogram of the cam 308 and the cam 309 is a substantially parallelogram of the cam 309.

[0028] Among them, the outer diameter of the card rod 307 is adapted to the inner diameter of the slot 301, the cross-sectional shape of the guide plate 306 is an inverted S shape, a card slot is opened on the left side of the filter 202, the outer diameter of the card rod 307 is adapted to the inner diameter of the card slot, and the right side of the card rod 307 passes through the shell 1 and extends to the inner cavity of the card slot.

[0029] It is understandable that the guide plate 306 is rotated to rotate the clamping rod 307 to the same height as the slot 301, and then the guide plate 306 is loosened, the clamping rod 307 can be inserted into the inner cavity of the slot 301, and the filter 202 can be pulled out for replacement.

[0030] The working principle of the above embodiment is:

[0031] (1) When in use, first connect the right side of the air duct 5 to the detection equipment, and connect the electric heating wire 4 to the power supply to increase the temperature of the inner cavity of the shell 1, and then open the electromagnetic switch valve 207 to allow the gas pollution source to enter the inner cavity of the collection box 201. The gas pollution source entering the inner cavity of the collection box 201 will be filtered by the three-layer filter 202, and the pollution source particles can be filtered out in turn. The filtered gas pollution source can enter the inner cavity of the shell 1 through the air outlet pipe 206. After being heated by the electric heating wire 4, the liquid water in the gas pollution source can evaporate, and then enter the detection equipment through the air duct 5 for detection.

[0032] (2) When the filter 202 is to be disassembled and replaced, the sealing door can be opened and the guide plate 306 can be pulled to the left. The movement of the guide plate 306 drives the movable rod 303 and the clamping rod 307 to move to the left. At this time, the spring 305 and the telescopic rod 304 are stretched until the clamping rod 307 moves out of the inner cavity of the clamping slot. The filter 202 can be released from the restriction. Then the guide plate 306 is rotated to rotate the clamping rod 307 to the same height as the slot 301. Then the guide plate 306 is released and the clamping rod 307 can be inserted into the inner cavity of the slot 301. Then the filter 202 can be pulled out for replacement.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention.

Claims

1. A pretreatment device for multi-stage filtration of pollution source particles, comprising a housing (1), characterized in that: A filtering mechanism (2) for filtering pollution source particles in multiple stages is provided at the top of the left side of the housing (1); a disassembly mechanism (3) is provided on the left side of the filtering mechanism (2); a plurality of electric heating wires (4) are placed in the inner cavity of the housing (1); and an air guide cover (5) is connected to the right side of the housing (1); The filtering mechanism (2) comprises a collecting box (201) fixed to the top left side of the housing (1); a filter screen (202) is provided in the inner cavity of the collecting box (201); a sliding groove (203) is provided on the right side wall of the inner cavity of the collecting box (201); a sealing plate (204) is fixed to the right side of the filter screen (202); a sliding block (205) is fixed to the right side of the sealing plate (204); an air outlet pipe (206) is connected to the lower surface of the collecting box (201); and an electromagnetic switch valve (207) is fixed to the other end of the air outlet pipe (206).

2. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 1 is characterized by: The shape of the collecting box (201) is a rectangular parallelepiped with a hollow interior and a missing upper surface, and the size of the inner cavity of the sliding groove (203) is compatible with the size of the sliding block (205).

3. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 1 is characterized in that: The number of the filter screens (202) is not less than two and the aperture of the upper filter screen (202) is larger than the aperture of the lower filter screen (202). The number of the filter screens (202) is equal to the number of the chute (203).

4. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 1 is characterized in that: The size of the sealing plate (204) is larger than the size of the inner cavity of the slide groove (203), and the other end of the electromagnetic switch valve (207) is fixed to the left side of the shell (1) and communicated with the inner cavity of the shell (1).

5. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 1 is characterized in that: The disassembly and replacement mechanism (3) comprises a slot (301) provided on the left side of the collection box (201); a fixed rod (302) is fixed on the left side of the collection box (201); a movable rod (303) is slidably connected to the inner cavity of the fixed rod (302); a telescopic rod (304) is fixed between the movable rod (303) and the side opposite to the right side wall of the inner cavity of the fixed rod (302); a spring (305) is movably sleeved on the outer surface of the telescopic rod (304); two ends of the spring (305) are respectively fixedly connected to the side opposite to the right side wall of the inner cavity of the movable rod (303) and the fixed rod (302); a guide plate (306) is rotatably connected to the left side of the movable rod (303) via a bearing; a clamping rod (307) is fixed to the bottom of the right side of the guide plate (306).

6. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 5, characterized in that: The outer diameter of the clamping rod (307) is matched with the inner diameter of the slot (301), and the cross-sectional shape of the guide plate (306) is an inverted S shape.

7. The pretreatment equipment for multi-stage filtration of pollution source particles according to claim 5, characterized in that: A slot is provided on the left side of the filter screen (202); the outer diameter of the clamping rod (307) matches the inner diameter of the slot; and the right side of the clamping rod (307) passes through the housing (1) and extends to the inner cavity of the slot.

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