Gas filtering device

Abstract

The utility model provides a gas filtering device which aims at solving the technical problem that a large amount of dust is discharged outdoors due to the fact that the dust removal capacity of an original fresh air system is limited. The filtering device comprises a box body, the middle of the box body is an expansion part, one end of the box body is a filtering part, one end of the filtering part far away from the expansion part is an outlet, and the bottom surface of the box body is provided with a slag discharge port; the filtering assembly is detachably arranged on the outlet and completely covers the outlet; the dust collecting assembly is detachably arranged on the slag discharging opening and completely covers the slag discharging opening; wherein the size of one end of the expansion part connected with the filtering part is larger than that of the other end. The expansion part is arranged in the middle of the box body, and the internal size of the expansion part is increased, so that the flow rate of airflow output from the exhaust fan port can be reduced in the expansion part, the impact force of dust and airflow on the filtering assembly is reduced, and on one hand, the purpose of protecting the filtering assembly is achieved; and the dust can fall to the bottom of the box body more quickly.

Description

TECHNICAL FIELD

[0001] The utility model relates to a dust removal equipment, specifically relates to a gas filter device. BACKGROUND

[0002] With the increasing of the clean control standard of polysilicon industry, how to quickly, efficiently, safely and reliably capture and collect the dust in the reduction workshop, purify the air environment and ensure the production safety has become a hot issue of the industry.

[0003] And, with the increase of polysilicon production capacity, the dust emission also increases. Through the actual measurement and data analysis on site, it is found that the dust production exceeds the initial stage. Therefore, how to quickly, efficiently, safely and reliably capture and collect the dust in the reduction workshop, purify the air environment and ensure the production safety has become a key problem to be solved.

[0004] At present, due to the exceeding of the expected dust emission of the newly built workshop, the dust removal capacity of the original fresh air system is insufficient, a large amount of dust is discharged to the outdoor through the exhaust fan, and deposited in the downwind direction, which causes the reduction electrical transformer room to be seriously polluted by dust, affecting the normal production activities. UTILITY MODEL CONTENT

[0005] In view of the technical problem that the dust removal capacity of the original fresh air system is limited, a large amount of dust is discharged to the outdoor, the utility model provides a gas filter device, which is installed on the exhaust fan port of the fresh air system, so as to achieve the purpose of reducing dust emission.

[0006] The technical scheme of the utility model is:

[0007] A gas filter device comprises:

[0008] A box body, the middle part of which is an expansion part, one end of which is a filter part, the end of the filter part away from the expansion part is an outlet, and the bottom surface of the box body is provided with a slag discharge port;

[0009] A filter assembly is detachably arranged on the outlet and completely covers the outlet;

[0010] A dust collection assembly is detachably arranged on the slag discharge port and completely covers the slag discharge port;

[0011] Wherein, the size of the expansion part connected to one end of the filter part is greater than the size of the other end.

[0012] Optionally, one side surface of the expansion part is on a vertical surface, the top surface is on a horizontal surface, and the other side surface and the bottom surface of the expansion part are both inclined surface structures.

[0013] Optionally, a window is provided on one side of the filter section, and the filter assembly is detachably mounted on the window. The slag discharge port and the dust collection assembly are also provided below the filter assembly.

[0014] Optionally, the top of the housing has two mounting slots, which are respectively matched with the outlet and the window;

[0015] The two filter assemblies can be inserted into the filter section from the mounting slot and cover the outlet and the window.

[0016] Optionally, the filtering component includes:

[0017] The frame is a square structure, and its dimensions match the dimensions of the outlet.

[0018] The filter media is disposed within the frame.

[0019] Optionally, the filter media has a pleated structure.

[0020] Optionally, the filtration component is a G4 grade pre-filter.

[0021] Optionally, the area of ​​the slag discharge port is greater than two-thirds of the bottom surface area of ​​the filter section, the dust collection assembly includes a dust collection plate that can completely cover the slag discharge port, and one end of the dust collection plate is rotatably connected to the bottom surface of the filter section.

[0022] Optionally, the dust collection assembly includes:

[0023] The collection tank is installed on the slag discharge port with one side of its opening facing upwards.

[0024] Optionally, the box body is provided with multiple vertical support columns on its exterior.

[0025] Compared with the prior art, the beneficial effects of this utility model are:

[0026] During installation, one end of the housing is connected to the exhaust fan outlet, and the other end is its outlet. A filter assembly is installed on the outlet to filter the air discharged from the exhaust fan outlet and remove dust from the air. The filtered dust is deposited in the dust collection assembly at the slag discharge outlet. Since the dust collection assembly is detachable, it only needs to be cleaned periodically.

[0027] In this technical solution, since the middle part of the housing is provided with an expansion section, the internal size of the expansion section gradually increases. Therefore, the airflow velocity output from the exhaust fan outlet will decrease in the expansion section, thereby reducing the impact of dust and airflow on the filter components. On the one hand, this achieves the purpose of protecting the filter components. On the other hand, because the airflow velocity is reduced, the dust will fall to the bottom of the housing more quickly.

[0028] By the technical solution, the dust amount in the air flow output from the exhaust fan port can be effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0030] Figure 1 It is a three-dimensional structure schematic diagram of the present application;

[0031] Figure 2 It is a three-dimensional structure schematic diagram of the present application in the upward direction;

[0032] Figure 3 It is a front structure schematic diagram of the present application;

[0033] Figure 4 It is a structure schematic diagram of the present application in the upward direction. DETAILED DESCRIPTION

[0034] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be essentially exemplary rather than limiting.

[0035] In the description of the present application, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, or is the orientation or positional relationship commonly used when the product of the present application is placed, or is the orientation or positional relationship commonly understood by those skilled in the art, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] The disclosure below provides many different embodiments or examples for implementing different structures of the present application. For the sake of simplicity, the description below of the specific examples will not be exhaustive of the application. Indeed, the application will be described with additional specificity and detail in order to meet statutory requirements. Moreover, the same numerals will be used throughout the several drawings to reference like or similar items.

[0037] Embodiments of the present application will now be described, by way of example only, with reference to the accompanying drawings.

[0038] Embodiment 1

[0039] Referring to Figure 1 , Figure 2 and Figure 3 , the embodiment discloses a gas filtering device, comprising a box body 10, a filtering assembly 20 and a dust collecting assembly 30. Wherein, one end of the box body 10 is its inlet 11, the other end is its outlet 12, the inlet 11 end of the box body 10 is connected on the air exhaust port, the filtering assembly 20 and the dust collecting assembly 30 are both arranged in the box body 10, at the same time, the filtering assembly 20 is arranged on the outlet 12 of the box body 10, and the dust collecting assembly 30 is arranged at the bottom of the box body 10 and below the filtering assembly 20.

[0040] Specifically, the middle part of the box body 10 is an expansion part 13, one end of the box body 10 is a filtering part 14, one end of the filtering part 14 is connected with one end of the expansion part 13, and the aforementioned outlet 12 is located on the end of the filtering part 14 away from the expansion part 13. A residue discharging port 17 is arranged at the bottom of the filtering part 14, the residue discharging port 17 is below the outlet 12, and the dust collecting assembly 30 is detachably arranged on the residue discharging port 17.

[0041] In the embodiment, the cross section of the box body 10 is a rectangular structure, the size of one end of the expansion part 13 connected with the filtering part 14 is greater than the size of the other end, and the sizes of the two ends of the expansion part 13 change linearly.

[0042] In the embodiment, the cross section of the box body 10 is a rectangular structure, the size of one end of the expansion part 13 connected with the filtering part 14 is greater than the size of the other end, and the sizes of the two ends of the expansion part 13 change linearly.

[0043] In the technical solution, the middle part of the box 10 is provided with the expansion part 13, the inner size of the expansion part 13 changes from small to large, the flow rate of the airflow output from the air outlet of the exhaust fan decreases in the expansion part 13, and the impact force of the dust and the airflow on the filter assembly 20 is reduced, so that the filter assembly 20 is protected, and the dust falls to the bottom of the box 10 more quickly due to the reduced flow rate of the airflow.

[0044] By the technical solution, the amount of dust in the airflow output from the air outlet of the exhaust fan can be effectively reduced.

[0045] In one specific embodiment,

[0046] The side (back) of the box 10 is a complete plate, so that the side of the box 10 is a plane structure and is located on a vertical plane. The top of the box 10 is also a complete plate, so that the top of the box 10 is located on a horizontal plane.

[0047] The side (front, i.e. the side away from the complete plate of the box 10) of the expansion part 13 is an inclined plate, forming an inclined surface, and the bottom of the expansion part 13 is also an inclined plate, forming another inclined surface. In addition, the side and the bottom of the expansion part 13 are outwardly expanded, so that the size of one end of the expansion part 13 connected to the filter part 14 is larger than the size of the other end.

[0048] In the embodiment, the back and the top of the box 10 are both complete plates, so that the device is convenient to install near a wall. The front and the bottom of the expansion part 13 are both inclined surfaces, so that the expansion effect is achieved. In addition, the inclined structure of the bottom of the expansion part 13 is beneficial to the sliding of the dust to the bottom of the filter part 14.

[0049] In another specific embodiment,

[0050] The filter part 14 is provided with the window 15 on one side (front), and the filter assembly 20 is detachably arranged on the window 15. In addition, the filter assembly 20 is provided with the discharge port 17 and the dust collection assembly 30 below.

[0051] Since the front of the filter part 14 is away from the wall when the device is installed, the filter assembly 20 arranged on the front of the filter part 14 can improve the filtering effect and the speed of the gas in the filter part 14 flowing outwards.

[0052] In another specific embodiment,

[0053] Two installation slots 16 are formed on the top of the box 10, the two installation slots 16 are perpendicular to each other and match the outlet 12 and the window 15 respectively. Two filter assemblies 20 can be inserted into the filter part 14 from the two installation slots 16 and completely cover the outlet 12 and the window 15.

[0054] By setting the installation slot 16 on the top of the box 10, the filter assembly 20 can be conveniently installed and removed for replacement or cleaning.

[0055] In another specific embodiment,

[0056] The filter assembly 20 includes a frame 21 and filter material 22, wherein the frame 21 is a square structure, and the size of the frame 21 matches the size of the outlet 12. If the filter assembly 20 is arranged on the window 15 on the side of the box 10, the size of the frame 21 matches the size of the window 15.

[0057] The filter material 22 is arranged in the frame 21, and the filter material 22 generally includes non-woven fabric, glass fiber, etc. Generally, two wire meshes are arranged on the frame 21 to clamp the filter material 22 between the two wire meshes.

[0058] In this embodiment, the frame 21 mainly plays a supporting role, and mainly filters the airflow passing through the filter assembly 20 through the filter material 22. By designing the wire mesh, the pressure bearing capacity of the filter material 22 (mainly the impact force from the airflow) can be enhanced.

[0059] Preferably, in order to increase the contact area of the filter material 22 with the airflow, the filter material 22 is designed in a folded structure.

[0060] In addition, a G4 primary filter can also be directly purchased as the filter assembly 20, but the outer size of the G4 primary filter needs to be customized according to the size of the window 15 and the outlet 12.

[0061] In another specific embodiment,

[0062] The dust collection assembly 30 includes a collection groove 31, which is in a strip shape. The top of the collection groove 31 is open, and the top of the collection groove 31 is buckled on the residue discharge port 17 from below the box 10, and completely covers the residue discharge port 17.

[0063] When it is necessary to clean the dust in the filter part 14, the collection groove 31 can be quickly cleaned by being removed.

[0064] In another specific embodiment,

[0065] In order to facilitate the cleaning of the dust in the residue discharge port 17, a plurality of support columns are vertically arranged outside the box 10, and the box 10 is supported to a certain height by the support columns.

[0066] Embodiment 2:

[0067] Referring to Figure 1 and Figure 4 , this embodiment discloses a gas filtering device, which has the same structure as that in Embodiment 1, except that the area of the slag discharge port 17 at the bottom of the filtering part 14 exceeds two-thirds of the area of the bottom surface of the filtering part 14, and the dust collecting assembly 30 is a dust collecting plate 32, which is rotatably arranged on the bottom surface of the filtering part 14 and can completely cover the slag discharge port 17.

[0068] In this embodiment, by designing the rotatable dust collecting plate 32, when cleaning the dust deposited in the filtering part 14, the dust can be made to slide off the dust collecting plate 32 by rotating one end of the dust collecting plate 32 downward, so as to achieve the purpose of rapid cleaning.

[0069] The above embodiments only express the specific implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be pointed out that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. A gas filter device, characterized by The utility model relates to a dust collecting box, which comprises: a box body with an expanded part in the middle and a filter part at one end, wherein the filter part is provided with an outlet at the end away from the expanded part, and the bottom surface of the box body is provided with a slag discharge port; a filter assembly which is detachably arranged on the outlet and completely covers the outlet; a dust collecting assembly which is detachably arranged on the slag discharge port and completely covers the slag discharge port; wherein the size of the expanded part at the end connected with the filter part is larger than that at the other end.

2. The gas filter device according to claim 1, characterized in that One side surface of the expanded part is in a vertical plane, the top surface is in a horizontal plane, and the other side surface and the bottom surface of the expanded part are both in inclined plane structures.

3. The gas filter device according to claim 1, characterized in that A window is formed on one side surface of the filter part, and the filter assembly is also detachably arranged on the window, and the slag discharge port and the dust collecting assembly are also arranged below the filter assembly.

4. The gas filter device according to claim 3, characterized in that Two installation grooves are formed on the top of the box body, and the two installation grooves are matched with the outlet and the window respectively; the two filter assemblies can be inserted into the filter part from the installation grooves and cover the outlet and the window.

5. The gas filter device according to claim 3, characterized in that The filter assembly comprises: a frame which is in a square structure and has a size matched with that of the outlet; filtering material which is arranged in the frame.

6. The gas filter device according to claim 5, characterized in that The filtering material is in a folded structure.

7. The gas filter device according to claim 1, characterized in that The filter assembly is a G4 grade primary filter.

8. The gas filter device according to claim 1, characterized in that The area of the slag discharge port is greater than two-thirds of the area of the bottom surface of the filter part, the dust collecting assembly comprises a dust collecting plate which can completely cover the slag discharge port, and one end of the dust collecting plate is rotationally connected to the bottom surface of the filter part.

9. The gas filter device according to any one of claims 1 to 7, characterized in that The dust collecting assembly comprises: a collecting groove which is upwardly arranged on the slag discharge port at one side of the groove opening.

10. The gas filter device according to any one of claims 1 to 8, characterized in that A plurality of support columns are vertically arranged outside the box body.

Images