Heat recovery type waste gas filtering treatment box

Abstract

The utility model discloses a heat recovery type waste gas filtering treatment box which comprises a box body used for filtering waste gas, the upper end of the box body is fixedly connected with a gas inlet pipe, the gas inlet pipe is connected with a waste gas discharge pipe, the lower end of the box body is connected with an exhaust pipe, the inner side of the box body is provided with a heat exchange pipe, and the heat exchange pipe is connected with the waste gas discharge pipe. An outer filter screen is mounted on the inner side of the box body, an inner filter screen is integrally connected to the inner side of the outer filter screen, a filter element is mounted between the outer filter screen and the inner filter screen, a sealing cover is fixedly connected to the lower end of the outer filter screen, a center shaft is rotatably connected to the inner side of the inner filter screen, and an impeller is fixedly mounted at the top of the center shaft; the outer side of the central shaft is fixedly connected with a scraper, and meanwhile, a knocking assembly is mounted at the lower end of the inner filter screen and used for preventing the inner filter screen from being blocked. According to the heat recovery type waste gas filtering treatment box, automatic cleaning and blockage prevention can be conducted on the filtering holes, subsequent replacement of the filtering elements is facilitated, meanwhile, heat in waste gas can be recovered, and energy conservation and environment protection are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a heat recovery type waste gas filtering and processing box. Background Art

[0002] In some industrial production processes, a large amount of waste gas is generated by combustion. In order to avoid environmental pollution, it is necessary to use a waste gas filtration treatment box to treat the waste gas before discharging it. However, the existing waste gas filtration treatment box still has some shortcomings.

[0003] In the prior art, there is an industrial waste gas treatment box with a publication number of CN218130605U, which includes a box body, an air inlet and an air outlet are provided on the box body, a filter chamber and a treatment chamber are provided inside the box body, the filter chamber is connected to the air inlet, the treatment chamber is connected to the air outlet, a filter device is provided inside the filter chamber, and a cleaning chamber is also provided on the box body, a rotating screw is rotatably connected inside the cleaning chamber, a nut is rotatably connected to the rotating screw, a first through groove connected to the cleaning chamber is provided on the side wall of the filter chamber, a connecting block that runs through the first through groove is rotatably connected to the nut, and a cleaning brush is provided on the connecting block. It can perform instant processing on the filter device in the industrial waste gas treatment box, reduce the number of replacements, and avoid the filtration of particles in the industrial waste gas from being hindered. However, when it is used, the filter screen lacks a cleaning mechanism, so that the filtered impurity particles are easy to block the filter holes, thereby affecting the normal transmission and filtration of the gas, and there are certain use defects. Utility Model Content

[0004] The utility model aims to provide a heat recovery type exhaust gas filter treatment box to solve the problem that the exhaust gas filter treatment box on the market is inconvenient to clean the filter holes and prevent clogging.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heat recovery type exhaust gas filtering treatment box, comprising a box body for exhaust gas filtering, and the upper end of the box body is fixedly connected to an air intake pipe, and the air intake pipe and the exhaust gas discharge pipe are connected, and the lower end of the box body is connected to the exhaust pipe, a heat exchange pipe is arranged on the inner side of the box body, and an outer filter is installed on the inner side of the box body, and an inner filter is integrally connected to the inner side of the outer filter, and a filter element is installed between the outer filter and the inner filter, and a sealing cover is fixedly connected to the lower end of the outer filter, the inner side of the inner filter is rotatably connected to a central shaft, and an impeller is fixedly installed on the top of the central shaft, and a scraper is fixedly connected to the outer side of the central shaft, and a knocking assembly is installed on the lower end of the inner filter to avoid clogging of the inner filter.

[0006] Preferably, the heat exchange tube passes through the box body, and the portion of the heat exchange tube located inside the box body is arranged in a spiral shape, and the heat exchange tube is made of a heat-conducting material.

[0007] By adopting the above technical solution, the heat exchange tube can exchange heat with the high-temperature exhaust gas inside the box body, thereby realizing heat recovery in the exhaust gas.

[0008] Preferably, the outer filter screen is gap-matched with the lower end hole of the box body, and the upper end of the outer filter screen is threadedly connected to the upper inner wall of the box body, and a sealing cover is fixedly provided at the lower end of the outer filter screen, and the sealing cover and the lower end of the box body are sealed and connected by a sealing ring.

[0009] By adopting the above technical solution, the rotating sealing cover can drive the outer filter screen and the box body to be disassembled and assembled, thereby facilitating the cleaning of the outer filter screen and the inner filter screen and the replacement of the filter element.

[0010] Preferably, the housing, the outer filter and the inner filter are coaxially arranged, the inner filter is connected to the air inlet pipe, and the impeller is located on the inner side of the top of the inner filter.

[0011] By adopting the above technical solution, when air is taken in through the intake pipe, the impeller will rotate under the action of the airflow, thereby driving the central shaft to rotate synchronously.

[0012] Preferably, scrapers are symmetrically fixedly mounted on the outer side of the central axis, and the scrapers are attached to the inner wall of the inner filter.

[0013] By adopting the above technical solution, when the central axis rotates, it can drive the scraper to clean the impurities filtered out from the inner side of the inner filter, thereby preventing the filter holes of the inner filter from being blocked and affecting the exhaust gas treatment efficiency.

[0014] Preferably, the knocking assembly includes a rotating disk fixedly mounted on the lower end of the central axis, and the lower surface of the rotating disk is evenly and fixedly connected with a first magnetic block, and a rotating member is elastically and rotatably mounted on the lower end of the inner filter, and a second magnetic block is fixedly mounted on the lower end of the rotating member, and the positions of the first magnetic block and the second magnetic block are correspondingly arranged and the relative magnetic poles are opposite, and the upper end of the rotating member is in contact with the outer wall of the inner filter.

[0015] By adopting the above technical solution, when the central shaft drives the rotating disk to rotate, the first magnetic block will intermittently approach and move away from the second magnetic block, so that the rotating part rotates elastically, thereby knocking the outer wall of the inner filter screen, thereby further cleaning the filter holes.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the heat recovery exhaust gas filter treatment box can automatically clean the filter holes and prevent clogging, and is convenient for subsequent replacement of the filter element. At the same time, it can recover the heat in the exhaust gas, which is energy-saving and environmentally friendly. The specific contents are as follows:

[0017] 1. A heat exchange tube is provided so that after the high-temperature air flows into the box, it can exchange heat with the heat exchange tube, so as to recycle the heat in the high-temperature exhaust gas and achieve environmental protection and energy saving;

[0018] 2. An outer filter, an inner filter, a scraper and a rotating part are provided. When the exhaust gas enters the inner filter through the intake pipe, the impeller can be driven to rotate, thereby driving the scraper to rotate synchronously, so that the scraper can scrape off the impurities filtered out by the inner wall of the inner filter to clean the filter holes. When the rotating disk rotates, the first magnetic block on its lower surface will reciprocate towards and away from the second magnetic block, so that the rotating part can rotate and knock on the outer wall of the inner filter, further promoting the cleaning and anti-blocking of the filter holes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the external filter of the utility model;

[0021] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0022] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 This is a schematic diagram of the impeller installation structure of the utility model;

[0024] Figure 6 This is a schematic diagram of the installation structure of the rotating part of the utility model.

[0025] In the figure: 1. box body; 2. air inlet pipe; 3. exhaust pipe; 4. heat exchange tube; 5. sealing cover; 6. outer filter; 7. inner filter; 8. filter element; 9. center axis; 10. impeller; 11. scraper; 12. rotating disk; 13. first magnetic block; 14. rotating member; 15. second magnetic block. DETAILED DESCRIPTION

[0026] 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.

[0027] See also Figure 1-Figure 6The utility model provides a technical solution: a heat recovery type exhaust gas filtering and processing box, comprising a box body 1 for exhaust gas filtering, and an air intake pipe 2 is fixedly connected to the upper end of the box body 1, and the air intake pipe 2 is connected to the exhaust gas discharge pipe, and the lower end of the box body 1 is connected to the exhaust pipe 3, a heat exchange pipe 4 is arranged on the inner side of the box body 1, and an outer filter screen 6 is installed on the inner side of the box body 1, and an inner filter screen 7 is integrally connected to the inner side of the outer filter screen 6, and a filter element 8 is installed between the outer filter screen 6 and the inner filter screen 7, and a sealing cover 5 is fixedly connected to the lower end of the outer filter screen 6.

[0028] The heat exchange tube 4 penetrates the box body 1, and the part of the heat exchange tube 4 located inside the box body 1 is spirally arranged, and the heat exchange tube 4 is made of heat conductive material. The outer filter 6 is gap-matched with the hole at the lower end of the box body 1, and the upper end of the outer filter 6 is threadedly connected to the inner wall of the upper end of the box body 1, and a sealing cover 5 is fixedly arranged at the lower end of the outer filter 6, and the sealing cover 5 and the lower end of the box body 1 are sealed and connected by a sealing ring.

[0029] like Figure 1-Figure 3 As shown, when the filter element 8 needs to be replaced, a new outer filter screen 6 is inserted from the hole at the lower end of the box body 1 and rotated, so that the upper end of the outer filter screen 6 is threadedly connected to the inner wall of the upper end of the box body 1, and the filter element 8 is installed. When the exhaust gas enters the inner filter screen 7 through the intake pipe 2, it can be filtered through the inner filter screen 7, the filter element 8 and the outer filter screen 6 in sequence to achieve the purification of the exhaust gas. At the same time, the heat exchange tube 4 can absorb and conduct the heat in the high-temperature exhaust gas to achieve the recovery and utilization of heat energy and improve environmental protection.

[0030] The inner side of the inner filter 7 is rotatably connected to the central shaft 9, and the top of the central shaft 9 is fixedly installed with an impeller 10, and the outer side of the central shaft 9 is fixedly connected with a scraper 11, and the lower end of the inner filter 7 is installed with a knocking assembly to prevent the inner filter 7 from being blocked. The box 1, the outer filter 6 and the inner filter 7 are coaxially arranged, and the inner filter 7 is connected to the intake pipe 2, and the impeller 10 is located on the inner side of the top of the inner filter 7. The outer side of the central shaft 9 is symmetrically fixed with a scraper 11, and the scraper 11 is attached to the inner wall of the inner filter 7.

[0031] The knocking assembly includes a rotating disk 12 fixedly mounted on the lower end of the central axis 9, and a first magnetic block 13 is evenly and fixedly connected to the lower surface of the rotating disk 12, and a rotating member 14 is elastically and rotatably mounted on the lower end of the inner filter 7, and a second magnetic block 15 is fixedly mounted on the lower end of the rotating member 14, and the positions of the first magnetic block 13 and the second magnetic block 15 are correspondingly arranged and the relative magnetic poles are opposite, and the upper end of the rotating member 14 is in contact with the outer wall of the inner filter 7.

[0032] like Figure 2-Figure 6As shown, when the exhaust gas enters the inner filter 7 through the intake pipe 2, the impeller 10 rotates under the drive of the exhaust gas, thereby driving the scraper 11 to rotate synchronously through the central shaft 9, so that the scraper 11 can scrape off the impurities filtered out on the inner filter 7 to avoid clogging of the filter holes and affecting the normal transportation and filtration of the exhaust gas. At the same time, the central shaft 9 will drive the rotating disk 12 to rotate synchronously, so that the first magnetic block 13 on the lower surface of the rotating disk 12 reciprocates close to and away from the second magnetic block 15, so that the rotating member 14 can rotate elastically. During the rotation and resetting process of the rotating member 14, the inner wall of the inner filter 7 can be automatically knocked, thereby shaking off the impurities stuck in the filter holes, and further improving the filter hole clearing effect.

[0033] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heat recovery type exhaust gas filtering and processing box, comprising a box body (1) for exhaust gas filtering, wherein an air intake pipe (2) is fixedly connected to the upper end of the box body (1), and the air intake pipe (2) is connected to an exhaust gas discharge pipe, and an exhaust pipe (3) is connected to the lower end of the box body (1), characterized in that: A heat exchange tube (4) is arranged on the inner side of the housing (1), and an outer filter (6) is installed on the inner side of the housing (1), and an inner filter (7) is integrally connected to the inner side of the outer filter (6), and a filter element (8) is installed between the outer filter (6) and the inner filter (7), and a sealing cover (5) is fixedly connected to the lower end of the outer filter (6), and a central shaft (9) is rotatably connected to the inner side of the inner filter (7), and an impeller (10) is fixedly installed on the top of the central shaft (9), and a scraper (11) is fixedly connected to the outer side of the central shaft (9), and a knocking assembly is installed on the lower end of the inner filter (7) to prevent the inner filter (7) from being blocked.

2. The heat recovery exhaust gas filtering and processing box according to claim 1 is characterized in that: The heat exchange tube (4) passes through the box body (1), and the portion of the heat exchange tube (4) located inside the box body (1) is arranged in a spiral shape, and the heat exchange tube (4) is made of a heat-conducting material.

3. The heat recovery exhaust gas filtering and processing box according to claim 1 is characterized in that: The outer filter (6) is gap-matched with the hole at the lower end of the box body (1), and the upper end of the outer filter (6) is threadedly connected to the inner wall of the upper end of the box body (1), and a sealing cover (5) is fixedly provided at the lower end of the outer filter (6), and the sealing cover (5) and the lower end of the box body (1) are sealed by a sealing ring.

4. The heat recovery exhaust gas filtering and processing box according to claim 1 is characterized in that: The housing (1), the outer filter (6) and the inner filter (7) are coaxially arranged, the inner filter (7) and the air inlet pipe (2) are connected, and the impeller (10) is located on the inner side of the top of the inner filter (7).

5. The heat recovery exhaust gas filtering and processing box according to claim 1 is characterized in that: A scraper (11) is symmetrically fixedly mounted on the outer side of the central axis (9), and the scraper (11) is attached to the inner wall of the inner filter screen (7).

6. The heat recovery exhaust gas filtering treatment box according to claim 1, characterized in that: The knocking assembly comprises a rotating disk (12) fixedly mounted on the lower end of the central shaft (9), and a first magnetic block (13) is evenly and fixedly connected to the lower surface of the rotating disk (12), and a rotating member (14) is elastically and rotatably mounted on the lower end of the inner filter (7), and a second magnetic block (15) is fixedly mounted on the lower end of the rotating member (14), and the positions of the first magnetic block (13) and the second magnetic block (15) are correspondingly arranged and the relative magnetic poles are opposite, and the upper end of the rotating member (14) is in contact with the outer wall of the inner filter (7).

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