A water film dust removal tower for exhaust gas treatment

Abstract

The utility model discloses a water film dust removal tower for waste gas treatment, including tower body, water treatment tank and scraping mechanism, and the bottom of tower body is equipped with drain pipe, and the top of water treatment tank is equipped with the connecting pipe of intercommunication drain pipe, and the middle part of water treatment tank is equipped with first filter screen, and the opposite sides of first filter screen are equipped with collection box, and the bottom of water treatment tank is equipped with water outlet, and the scraping mechanism includes translation drive equipment and scraping piece, and translation drive equipment is located at one side of water treatment tank, and scraping piece includes connecting rod and scraper, and the top side of first filter screen is equipped with scraper and is parallel with the side of collection box, and connecting rod is set through water treatment tank, and both ends are connected with translation drive equipment and scraper respectively, and connecting rod and scraper are vertically set up. The utility model discloses a water film dust removal tower for waste gas treatment, and it is convenient to clean the filter screen in the process of filtration, and guarantees the filtration efficiency.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment, and in particular to a water film dust removal tower for waste gas treatment. Background Technology

[0002] Water film dust removal primarily utilizes the close contact between dust-laden airflow and a water film. The water film captures and carries away dust particles from the gas, thus achieving dust removal. Some water film dust removal towers include a filtration chamber for water treatment and recovery. The filter screen in this chamber can only be removed for cleaning after the water film dust removal process is complete. If clogging occurs during filtration, it will affect the filtration efficiency, requiring improvement. Utility Model Content

[0003] To address the aforementioned problems, this utility model provides a water film dust removal tower for waste gas treatment, which facilitates the cleaning of the filter screen during the filtration process and ensures filtration efficiency.

[0004] The technical solution of this utility model is as follows:

[0005] A water film dust collector for waste gas treatment includes a tower body, a water treatment tank, and a scraping mechanism. The tower body has a drain pipe at its bottom; the water treatment tank has a connecting pipe at its top that connects to the drain pipe; a first filter screen is located in the middle of the water treatment tank; collection boxes are located on opposite sides of the first filter screen; and a water outlet is located at the bottom of the water treatment tank. The scraping mechanism includes a translation drive device and a scraping component. The translation drive device is located on one side of the water treatment tank. The scraping component includes a connecting rod and a scraper. The scraper is located on the top side of the first filter screen and parallel to the side where the collection boxes are located. The connecting rod passes through the water treatment tank, with its two ends connected to the translation drive device and the scraper, respectively. The connecting rod is perpendicular to the scraper.

[0006] In a further technical solution, the scraper includes a mounting block and a scraper blade, the mounting block and the scraper blade are detachably connected, and the connecting rod is arranged perpendicular to the middle of the mounting block.

[0007] In a further technical solution, an opening adapted to the collection box is provided on the side wall of the water treatment tank on one side of the collection box, allowing the collection box to pass through as a whole with the first filter screen; a support side is provided on the inner wall of the water treatment tank at the bottom of the opening, and the collection box is mounted on the top side of the support side.

[0008] In a further technical solution, a second filter screen is provided between the collection box and the support edge, and the mesh size of the second filter screen is smaller than that of the first filter screen.

[0009] In a further technical solution, the second filter screen is provided with insert blocks around its perimeter, and the bottom of the collection box is provided with slots for inserting the insert blocks.

[0010] In a further technical solution, the bottom of the collection box is provided with an opening.

[0011] The beneficial effects of this utility model are:

[0012] 1. After the water film inside the tower captures dust particles in the exhaust gas, it can enter the water treatment tank along with the dust particles and be filtered by the first filter screen. During this process, the translation drive device can drive the scraper to move repeatedly to both sides where the collection box is located, pushing larger dust particles on the first filter screen into the collection box to ensure the filtration efficiency of the first filter screen. The filtration and cleaning of the first filter screen can be carried out simultaneously when the tower is working.

[0013] 2. The second filter can block some of the dust particles that are squeezed through the first filter by the scraper, thus enhancing the filtration effect;

[0014] 3. The water contained in the dust particles in the collection box can be collected through the opening and the second filter screen to the bottom of the water treatment tank for recycling. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the water film dust removal tower for waste gas treatment described in this embodiment of the utility model;

[0016] Figure 2 This is a cross-sectional schematic diagram of the water treatment tank and scraping mechanism described in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the first filter screen in an embodiment of the present invention;

[0018] Figure 4 This is a schematic diagram of the scraper structure described in an embodiment of the present utility model;

[0019] Figure 5 This is a schematic diagram of the structure of the second filter screen in an embodiment of the present invention;

[0020] Figure 6 This is a cross-sectional schematic diagram of the collection box described in an embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 10. Tower body; 11. Drain pipe; 20. Water treatment tank; 21. Connecting pipe; 22. First filter screen; 23. Collection box; 231. Slot; 232. Opening; 24. Water outlet; 25. Support side; 26. Baffle; 27. Pull handle; 28. Second filter screen; 281. Insert block; 31. Electric telescopic rod; 32. Connecting rod; 33. Scraper; 331. Mounting block; 332. Scraper blade. Detailed Implementation

[0023] The embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0024] Example:

[0025] like Figures 1-4 As shown, a water film dust collector for waste gas treatment includes a tower body 10, a water treatment tank 20, and a scraping mechanism. The tower body 10 has a conventional water film spray structure in its middle, optionally an overflow trough or a nozzle spray structure. A conventional demister can be installed at the top of the water film spray structure. A drain pipe 11 is provided at the bottom of the tower body 10. A connecting pipe 21 connecting to the drain pipe 11 is provided in the middle of the top of the water treatment tank 20. A first filter screen 22 is provided in the middle of the water treatment tank 20, and collection boxes 23 are provided on opposite sides of the first filter screen 22. The first filter screen 22 is surrounded by the collection boxes 23. All components are fitted to the inner wall of the water treatment tank 20, and the bottom of the water treatment tank 20 is provided with an outlet 24; the scraping mechanism includes a translation drive device and a scraping component, the translation drive device is preferably an electric telescopic rod 31, which is located on one side of the water treatment tank 20, and a bracket is provided to support the bottom of the electric telescopic rod 31; the scraping component includes a connecting rod 32 and a scraper 33, the scraper 33 is located on the top side of the first filter screen 22 and parallel to the side where the collection box 23 is located, the connecting rod 32 is installed through the water treatment tank 20, and the two ends are respectively connected to the translation drive device and the scraper 33, and the connecting rod 32 is perpendicular to the scraper 33.

[0026] The working principle of the above technical solution is as follows:

[0027] The water film generated by the water film spraying structure in the tower body 10, which mixes with the dust particles, and the water collected at the demister, all fall to the bottom of the tower body 10 and flow into the water treatment tank 20 through the drain pipe 11 and the connecting pipe 21. The first filter screen 22 filters the incoming water, and the filtered water flows to the bottom of the water treatment tank 20 and is recovered to the designated location from the outlet 24. While the first filter screen 22 is filtering, the electric telescopic rod 31 can drive the scraper 33 to repeatedly scrape the first filter screen 22 through the connecting rod 32. When scraping, the dust particles can be pushed into the collection box 23 in the front and rear directions of the scraper 33 and concentrated.

[0028] In another embodiment, such as Figure 4 As shown, the scraper 33 includes a mounting block 331 and a scraper blade 332, the scraper blade 332 preferably being made of rubber; the mounting block 331 has a T-shaped groove on its bottom side, and the scraper blade 332 has a connecting block with a T-shaped cross-section matching the T-shaped groove on its top side; the connecting rod 32 is arranged perpendicular to the middle of the mounting block 331.

[0029] This connecting block facilitates quick removal or installation from the T-slot.

[0030] In another embodiment, such as Figure 2-3As shown, a movable opening adapted to the collection box 23 is provided on the side wall of the water treatment tank 20 on one side, allowing the collection box 23 and the first filter screen 22 to pass through as a whole; a support edge 25 is provided on the inner wall of the water treatment tank 20 at the bottom of the movable opening, and the collection box 23 is mounted on the top side of the support edge 25; when the first filter screen 22 is inside the water treatment tank 20, a baffle 26 is provided on the outer side of the collection box 23 near the movable opening, and a pull handle 27 is provided on the side of the baffle 26 away from the collection box 23. When the first filter screen 22 and the collection box 23 are completely inside the water treatment tank 20, the baffle 26 can close the movable opening.

[0031] The collection box 23 and the first filter screen 22 are easily removed from the water treatment tank 20, making it convenient to clean the collection box 23 and the first filter screen 22 completely after the tower body 10 has been in operation.

[0032] In another embodiment, such as Figure 5-6 As shown, a second filter 28 is provided between the collection box 23 and the support edge 25. The mesh size of the second filter 28 is smaller than that of the first filter 22. Insertion blocks 281 are provided around the second filter 28. The bottom of the collection box 23 is provided with slots 231 for inserting into the insertion blocks 281. The bottom of the collection box 23 is provided with an opening 232.

[0033] The second filter 28 can block some of the dust particles that are squeezed through the first filter 22 by the scraper 33, and enhance the filtration effect; the water contained in the dust particles in the collection box 23 can flow through the opening 232 and the second filter 28 to the bottom of the water treatment tank 20 for recycling; the second filter 28 can be separated from the collection box 23 when it is removed from the water treatment tank 20, making cleaning more convenient.

[0034] The embodiments described above merely illustrate specific implementations of this utility model, and while the descriptions are detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A water film dust collector for waste gas treatment, characterized in that, The device includes a tower body, a water treatment tank, and a scraping mechanism. The tower body has a drain pipe at its bottom. The water treatment tank has a connecting pipe at its top that connects to the drain pipe. A first filter screen is located in the middle of the water treatment tank. Collection boxes are located on opposite sides of the first filter screen. The bottom of the water treatment tank has a water outlet. The scraping mechanism includes a translation drive device and a scraping component. The translation drive device is located on one side of the water treatment tank. The scraping component includes a connecting rod and a scraper. The scraper is located on the top side of the first filter screen and is parallel to the side where the collection boxes are located. The connecting rod passes through the water treatment tank and is connected to the translation drive device and the scraper at both ends. The connecting rod is perpendicular to the scraper.

2. The water film dust collector for waste gas treatment according to claim 1, characterized in that, The scraper includes a mounting block and a scraper blade, the mounting block and the scraper blade are detachably connected, and the connecting rod is arranged perpendicular to the middle of the mounting block.

3. The water film dust collector for waste gas treatment according to claim 1, characterized in that, One of the collection boxes has an opening on the side wall of the water treatment tank on one side, which is adapted to the collection box, allowing the collection box to pass through in conjunction with the first filter screen; a support side is provided on the inner wall of the water treatment tank at the bottom of the opening, and the collection box is mounted on the top side of the support side.

4. The water film dust collector for waste gas treatment according to claim 3, characterized in that, A second filter screen is also provided between the collection box and the support side, and the mesh size of the second filter screen is smaller than that of the first filter screen.

5. The water film dust collector for waste gas treatment according to claim 4, characterized in that, The second filter screen has inserts around its perimeter, and the bottom of the collection box has slots for inserting the inserts.

6. The water film dust collector for waste gas treatment according to claim 4 or 5, characterized in that, The bottom of the collection box has an opening.

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