Waste gas filtering device for chemical equipment

Abstract

The utility model discloses a chemical equipment waste gas filtering device which comprises a filtering box and a purifying device, one end of the filtering box is provided with a gas inlet pipe, the other end of the filtering box is connected with the purifying device through a connecting pipe, a filtering assembly is arranged in the filtering box, and a cleaning mechanism matched with the filtering assembly is further arranged in the filtering box. A collecting component is arranged at the bottom of the filter box. Granules on the filter screen can be dried, the adhesion capacity of the filter screen can be reduced, then the filter screen can be regularly vibrated and beaten through the cleaning mechanism, adsorbed impurities can be conveniently vibrated to fall off, then the impurities are uniformly collected through the collecting assembly, the adsorption and filtration effects of the filter screen are ensured, and the service life of the filter screen is prolonged. And the influence of blockage and the like on filtering use is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas filtering, in particular to a waste gas filtering device for chemical equipment. Background Art

[0002] Chemical waste gas refers to toxic and harmful gases discharged by chemical plants during chemical production. Chemical waste gas often contains many types of pollutants with complex physical and chemical properties and different toxicities, which seriously pollute the environment and affect human health. Waste gas often contains a lot of dust. Direct emission will pollute the environment and aggravate the greenhouse effect of the earth. Therefore, waste gas filtration devices are needed to filter and purify the waste gas.

[0003] However, existing exhaust gas filtering devices have certain defects in actual use. Most of them use filter nets to adsorb and filter particulate impurities in the exhaust gas. However, due to their certain humidity, they are prone to adhere to the filter net after long-term use, making it inconvenient to clean them and prone to clogging, which affects the filtration and purification of the exhaust gas. Utility Model Content

[0004] The purpose of the utility model is to provide a waste gas filtering device for chemical equipment to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste gas filtering device for chemical equipment, comprising a filter box and a purification device, one end of the filter box is provided with an air inlet pipe, the other end of the filter box is connected to the purification device through a connecting pipe, a filter assembly is provided in the filter box, a cleaning mechanism matching the filter assembly is also provided in the filter box, and a collecting assembly is provided at the bottom of the filter box.

[0006] Preferably, in order to facilitate adsorption and filtration of particulate impurities and odors in the exhaust gas, the filter assembly includes a mounting frame and an activated carbon plate which are sequentially arranged in the filter box, and a filter net is provided inside the mounting frame through a sliding structure.

[0007] Preferably, in order to facilitate reciprocating vibration and regular cleaning of the filter, the sliding structure includes a sliding cavity equidistantly opened in the installation frame, a sliding rod is fixed in the sliding cavity, a spring is provided on the outer sleeve of the sliding rod, and a sliding block is provided on the sliding sleeve of the sliding rod, and the sliding block is fixedly connected to the filter.

[0008] Preferably, in order to dry the impurities, a heating device is provided on the inner peripheral side of the installation frame.

[0009] Preferably, in order to facilitate vibration and knocking, to shake off impurities and ensure the filtering and adsorption effect of the filter net, the cleaning mechanism includes a crankshaft arranged in the filter box, the crankshaft is located between the mounting frame and the activated carbon plate, one end of the crankshaft is fixedly connected to the output end of the motor, and rings are equidistantly sleeved on the crankshaft, and the rings are provided with a knocking assembly through a rotating part.

[0010] Preferably, in order to facilitate vibration and knocking and to shake off impurities, the knocking assembly includes a knocking block connected to the rotating part, a sleeve that slides with the knocking block is provided on the side wall of the filter, and a rubber pad is provided at one end of the knocking block close to the filter.

[0011] Preferably, in order to facilitate the unified collection of impurities and subsequent processing, the collection component includes a collection tube arranged at the bottom of the filter box, the collection tube is located directly below the installation frame, and a collection box is provided at the bottom of the collection tube.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The cleaning mechanism is combined with the collecting component and the heating device to dry the particles on the filter to reduce their adhesion. The filter can then be vibrated and knocked regularly by the cleaning mechanism to easily shake off the adsorbed impurities, which are then collected uniformly by the collecting component to ensure the adsorption and filtration effect of the filter and prevent clogging and other conditions that affect the filtration.

[0014] (2) The filter assembly can be used to filter and adsorb particulate impurities and odors in the exhaust gas, and then the exhaust gas is purified through a purification device and discharged after meeting the standards to avoid environmental pollution. At the same time, the sliding structure can assist the cleaning mechanism to achieve reciprocating vibration of the filter, so as to better shake off the adsorbed impurities and improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a waste gas filtering device for chemical equipment proposed by the utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of a filter box in a waste gas filter device for chemical equipment proposed by the utility model;

[0017] Figure 3 This is a partial structural diagram of a mounting frame and a filter screen in a waste gas filter device for chemical equipment proposed by the utility model;

[0018] Figure 4 This is a schematic diagram of the structure of a filter screen in a waste gas filter device for chemical equipment proposed by the utility model;

[0019] Figure 5 The utility model is a partial structural schematic diagram of a cleaning mechanism in a waste gas filtering device for chemical equipment.

[0020] In the figure: 1. filter box; 2. intake pipe; 3. purification device; 4. collection pipe; 5. collection box; 6. installation frame; 7. activated carbon plate; 8. connecting pipe; 9. filter screen; 10. heating device; 11. sliding chamber; 12. spring; 13. sliding block; 14. sliding rod; 15. motor; 16. crankshaft; 17. sleeve; 18. rotating part; 19. sleeve; 20. knocking block; 21. rubber pad. 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-Figure 5 The utility model provides an embodiment: a chemical equipment waste gas filtering device, including a filter box 1 for treating waste gas generated in the production process of chemical equipment in a chemical plant and filtering the waste gas. The air inlet pipe 2 is connected to the waste gas discharge pipe, which can conveniently pass the waste gas into the filter box 1 for filtering and other operations, and the other end of the filter box 1 is connected to a purification device 3 through a connecting pipe 8. The purification device 3 (which can be UV photocatalysis, etc., can conveniently purify harmful substances, or can be other purification equipment, which is set according to the type of waste gas. It is a relatively mature technology and will not be described here) can filter and purify the waste gas and then discharge it after it meets the standards.

[0023] See also Figure 1-Figure 5In order to facilitate the filtering operation of the exhaust gas, an installation frame 6 of the filter assembly is provided inside the filter box 1, and an activated carbon plate 7 is provided at its rear end (the end close to the purification device 3), and the two can be installed with the filter box 1 by screws or card connection, which can facilitate installation and subsequent disassembly operations, and sliding cavities 11 of a sliding structure are equidistantly provided in the installation frame 6, and a sliding rod 14 is fixedly installed in the sliding cavity 11, and a sliding block 13 is slidably matched on the sliding rod 14, which can be conveniently slid in the sliding cavity 11, and a spring 12 (located between the sliding block 13 and the sliding cavity 11) is sleeved on the outside of the sliding rod 14, which can facilitate subsequent knocking and reciprocating sliding, so as to facilitate the shaking off of the adsorbed impurities and the cleaning operation of the filter screen 9, and a filter screen 9 is installed between the four sliding blocks 13 (which can be installed and fixed by screws), and a heating device 10 (which can be heated by a resistance wire or other methods) is installed on the surrounding side surface inside the installation frame 6, which can heat the filter screen 9, avoid the adhesion and bonding of granular impurities with a certain humidity, and facilitate subsequent shaking and cleaning.

[0024] See also Figure 1-Figure 5 , and in order to facilitate regular cleaning operations, a motor 15 of a cleaning mechanism is installed on the rear end side wall of the filter box 1, and a crankshaft 16 is fixedly installed on the output end of the motor 15 through a coupling, which penetrates the filter box 1 and extends to the inside, and is located between the activated carbon plate 7 and the mounting frame 6. Two sets of collars 17 are equidistantly sleeved on the crankshaft 16, and the collars 17 are connected to the knocking block 20 of the knocking assembly through a rotating member 18, wherein the rotating member 18 is composed of a connecting rod and a rotating block, and a rubber pad 21 is bonded to the end of the knocking block 20, and a sleeve 19 is bonded to the side wall of the filter screen 9 for facilitating the reciprocating sliding of the knocking block 20. In order to facilitate the collection of impurities that have been shaken off, a collection pipe 4 is provided at the bottom end of the filter box 1 below the mounting frame 6, and the collection pipe 4 (an electric control valve is provided on it, which can be closed during normal exhaust gas filtering and opened during cleaning) is connected to the rear collection box 5 (an exhaust fan is provided inside it to assist in collection, and the principle is the same as that of a vacuum cleaner, which is a relatively mature technology and will not be described here).

[0025] Working principle: When the utility model is in use, the waste gas generated by the chemical equipment during production is introduced through the air inlet pipe 2. At this time, the particulate impurities in the waste gas can be filtered and adsorbed through the filter 9, and then the odor can be adsorbed through the activated carbon plate 7. Then, it is introduced into the purification device 3 through the connecting pipe 8 for purification and discharge. During the working process, the heating device 10 in the installation frame 6 works to dry the adsorbed particulate impurities, avoid adhesion and overwork, and facilitate the subsequent vibration, knocking and shaking operations. After a period of use, the filter 9 needs to be cleaned. When the motor 15 works, the crankshaft 16 rotates, and then under the action of the ring 17 and the rotating member 18, the knocking block 20 reciprocates in the sleeve 19, and cooperates with the rubber pad 21 to knock the filter 9. At this time, the sliding block 13 on the filter 9 slides on the slide rod 14, and the spring 12 stores potential energy as it contracts, and then resets under the action of the potential energy, thereby assisting the reciprocating vibration and knocking, making it convenient to shake off the adsorbed impurities, and then enter the collection box 5 through the collection pipe 4 to complete the collection, thereby avoiding clogging of the filter 9 during long-term use, etc., which affects the effect and efficiency of exhaust gas filtration.

[0026] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A chemical equipment waste gas filtering device, comprising a filter box (1) and a purification device (3), characterized in that: One end of the filter box (1) is provided with an air intake pipe (2), and the other end of the filter box (1) is connected to the purification device (3) via a connecting pipe (8). A filter assembly is provided in the filter box (1), and the filter assembly comprises a mounting frame (6) and an activated carbon plate (7) which are sequentially arranged in the filter box (1), and a filter screen (9) is arranged inside the mounting frame (6) via a sliding structure. A cleaning mechanism matching the filter assembly is also provided in the filter box (1), and a collecting assembly is provided at the bottom end of the filter box (1). The cleaning mechanism comprises a crankshaft (16) arranged in the filter box (1). ), the crankshaft (16) is located between the mounting frame (6) and the activated carbon plate (7), one end of the crankshaft (16) is fixedly connected to the output end of the motor (15), the crankshaft (16) is equidistantly sleeved with a collar (17), the collar (17) is provided with a striking assembly via a rotating member (18), the striking assembly comprises a striking block (20) connected to the rotating member (18), a sleeve (19) slidably matched with the striking block (20) is provided on the side wall of the filter screen (9), and a rubber pad (21) is provided at one end of the striking block (20) close to the filter screen (9).

2. A chemical equipment waste gas filtering device according to claim 1, characterized in that: The sliding structure comprises a sliding cavity (11) equidistantly arranged in the installation frame (6), a sliding rod (14) is fixedly arranged in the sliding cavity (11), a spring (12) is sleeved on the outside of the sliding rod (14), and a sliding block (13) is slidably sleeved on the sliding rod (14), and the sliding block (13) is fixedly connected to the filter screen (9).

3. A chemical equipment waste gas filtering device according to claim 2, characterized in that: A heating device (10) is provided on the inner peripheral side surface of the installation frame (6).

4. A chemical equipment waste gas filtering device according to claim 3, characterized in that: The collecting assembly comprises a collecting pipe (4) arranged at the bottom end of the filter box (1); the collecting pipe (4) is located directly below the installation frame (6); and a collecting box (5) is provided at the bottom end of the collecting pipe (4).

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