Chemical waste residue filtering and scraping device

Abstract

The utility model discloses a chemical waste residue filtering and scraping device which comprises a filtering box with a feeding end and a discharging end, a filtering assembly is installed in an inner cavity of the filtering box, the filtering assembly comprises a motor and a filtering net belt, the motor drives the filtering net belt to move, waste residues are filtered while the filtering net belt moves, and the filtering net belt is driven by the motor to move. And a scraping mechanism is installed on the side wall of the filtering box and comprises a driving assembly, the outer wall of the driving assembly is fixedly connected with a scraping plate, the scraping plate scrapes waste residues on the upper end face of the filtering net belt, and a cleaning assembly is installed in an inner cavity of the scraping mechanism. According to the utility model, by arranging the scraping mechanism, residues are scraped during filtering, the filtering speed is improved, and the filter screen belt is knocked during cleaning, so that the cleaning efficiency of the filter screen belt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical waste residue treatment, in particular to a chemical waste residue filtering and scraping device. Background Art

[0002] Chemical waste refers to solid and slurry wastes generated during the chemical production process, including unqualified products, by-products, waste catalysts, waste solvents, waste water, etc. Chemical waste is complex in composition, uneven in strength distribution, and has high viscosity. During filtration, it often blocks the filter, greatly reducing the efficiency and quality of filtration.

[0003] After searching, the application number CN202211686593.2 discloses a scraping type self-cleaning filter, including a stainless steel carrier cylinder, a supporting base is arranged at the bottom of the stainless steel carrier cylinder, a driving motor is arranged on one side of the stainless steel carrier cylinder, a vertical shaft is arranged on one side of the driving motor, the vertical shaft is located inside the stainless steel carrier cylinder, an internal bottom groove is arranged inside the base plate, and the internal bottom groove and the base plate are integrally formed, which solves the problem of poor cleaning power of the existing filtering self-cleaning device during use.

[0004] Existing filtration equipment requires cleaning of the filter on one side at the end of filtration or when the filter is clogged and needs to be stopped for cleaning. The filter must be cleaned again after filtration is completed. The effective use of the filter cannot be guaranteed during the filtration process, and stopping for cleaning in the middle of the process will greatly extend the working time and affect the normal production processing progress. Utility Model Content

[0005] The utility model aims to provide a chemical waste residue filtering and scraping device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides a chemical waste residue filtering and scraping device, comprising a filter box with an inlet and outlet end, the filter box comprising a box body, a connecting groove is opened on the side wall of the box body, and two groups of mounting grooves are symmetrically opened on the inner wall of the box body;

[0007] The inner cavity of the filter box is equipped with a filter assembly, which includes a motor and a filter belt. The motor drives the filter belt to move, and the filter belt filters the waste residue while moving.

[0008] The side wall of the filter box is installed with a scraping mechanism, which includes a driving assembly, and the outer wall of the driving assembly is fixedly connected with a scraper, and the scraper scrapes the waste residue on the upper end surface of the filter belt;

[0009] A cleaning assembly is installed in the inner cavity of the scraping mechanism. The cleaning assembly includes a cleaning roller and an arc-shaped brush. The filter belt passes through the adjacent areas of the cleaning roller and the arc-shaped brush. The arc-shaped brush cleans the moving filter belt.

[0010] As a further preference, the filter assembly further comprises a motor, a group of drive rollers are fixedly connected to the output end of the motor, and the drive rollers are drivingly connected to another group of drive rollers through a filter mesh belt.

[0011] As a further preference, the scraping mechanism also includes an installation box, the driving component is installed on the front and rear side walls of the installation box, the driving component drives the scraper to fit the outer wall of the filter belt, and the scraper is fixedly connected with a wedge-shaped sealing plate close to the driving roller and one side of the installation box.

[0012] As a further preference, the cleaning assembly also includes a cleaning box, and a feed trough and a discharge trough are respectively provided on both side walls of the cleaning box, both ends of the arc-shaped brush are fixedly connected to the inner wall of the cleaning box, and both ends of the cleaning roller are rotatably connected to the inner wall of the cleaning box, and the cleaning roller is coaxially arranged with the arc-shaped brush.

[0013] As a further preference, the cleaning roller includes a roller body, a C-shaped mounting groove is opened in the roller body, an arc panel is slidably connected in the C-shaped mounting groove, an elastic belt is fixedly connected to the side of the arc panel extending into the C-shaped mounting groove, and the elastic belt is fixedly connected to the bottom of the inner cavity of the C-shaped mounting groove on the side facing away from the arc panel.

[0014] As a further preference, the difference between the outer diameter of the roller body and the inner diameter of the arc-shaped brush does not exceed the thickness of the filter belt.

[0015] Through the above technical solution, the chemical waste slag filtering and scraping device provided by the utility model has the following benefits:

[0016] The utility model provides a scraping mechanism, a driving assembly drives the scraper to fit with the outer wall of the filter mesh belt located outside the driving roller, and the motor drives the filter mesh belt to move through the driving roller. While the filter mesh belt moves, the scraper fitted with the filter mesh belt scrapes off the residue deposited on the upper end surface of the filter mesh belt, and the scraped residue slides along the scraper to the residue outlet for discharge, and the wedge-shaped sealing plate arranged on the side adjacent to the scraper and the filter mesh belt is squeezed and deformed by the filter mesh belt, and the wedge-shaped sealing plate arranged on the side adjacent to the bottom of the scraper and the inner cavity of the installation box is pushed by the scraper to fit tightly with the bottom of the inner cavity of the installation box, so that the residue is prevented from falling directly into the bottom of the inner cavity of the box without being filtered by the filter mesh belt, and the residue is scraped off while filtering, thereby improving the filtering speed;

[0017] At the same time, cleaning agent is placed in the inner cavity of the cleaning box. The filter belt scraped by the scraper passes through the feed port of the outer wall of the cleaning box, then passes through the adjacent area of ​​the roller body and the arc brush, and finally passes through the discharge port. The outside of the moving filter belt is cleaned by the arc brush while pushing the roller body to rotate. When the roller body rotates, the arc panel is stretched by the centrifugal force to stretch the elastic belt outward and hit the inside of the filter belt, promoting the falling off of the residue attached to the filter belt. As the roller body rotates, the arc panel blocked by the filter belt is pulled into the C-shaped mounting groove by the deformed elastic belt. When the C-shaped mounting groove rotates to an area where it does not contact the filter belt, the arc panel is hit on the filter belt again by the centrifugal force, thereby improving the cleaning efficiency of the filter belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a schematic diagram of the structure of a chemical waste slag filtering and scraping device.

[0019] Figure 2 This is a schematic diagram of the cross-sectional structure of the filter box of the utility model.

[0020] Figure 3 It is a schematic diagram of the partial cross-section structure of the scraping mechanism of the utility model.

[0021] Figure 4 It is a schematic diagram of the half-section structure of the cleaning component of the utility model.

[0022] Figure 5 It is a schematic diagram of the half-section structure of the cleaning roller of the utility model.

[0023] In the figure: 1 filter box, 11 box body, 12 connecting groove, 13 installation groove, 2 filter assembly, 21 motor, 22 drive roller, 23 filter mesh belt, 3 scraper mechanism, 31 installation box, 32 slag outlet, 33 wedge-shaped sealing plate, 34 drive assembly, 35 scraper, 4 cleaning assembly, 41 cleaning box, 42 cleaning roller, 421C-type placement groove, 422 roller body, 423 arc panel, 424 elastic belt, 43 arc brush. DETAILED DESCRIPTION

[0024] 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.

[0025] The utility model is further described in detail with reference to the accompanying drawings.

[0026] See also Figure 1 - Figure 5, a chemical waste residue filtering and scraping device provided by the utility model comprises a filter box 1, a filter component 2, a scraping mechanism 3 and a cleaning component 4.

[0027] Among them, see Figure 1 - Figure 3 The filter box 1 includes a box body 11, a connecting groove 12 is provided on the side wall of the box body 11, and two groups of mounting grooves 13 are symmetrically provided on the inner wall of the box body 11. The filter assembly 2 includes a motor 21 and a filter mesh belt 23. The output end of the motor 21 passes through the front end surface of the box body 11 and is fixedly connected to a group of driving rollers 22. The driving rollers 22 are connected to another group of driving rollers 22 through the filter mesh belt 23. The motor 21 drives the filter mesh belt 23 to move through the two groups of driving rollers 22. The scraping mechanism 3 includes an installation box 31, which is fixedly connected to the outer wall of the box body 11 and is connected to the inner cavity of the box body 11 through the connecting groove 12. The installation box 31 is L-shaped, and the side wall of the lateral inner cavity of the installation box 31 is fixedly connected to the driving assembly 34, and the side wall of the driving assembly 34 is transverse to the installation box 31 The bottom of the inner cavity is tangent, and a wedge-shaped sealing plate 33 is fixedly connected to the tangent position of the side wall of the driving component 34. A scraper 35 is fixedly connected to the position of the side wall of the driving component 34 away from the wedge-shaped sealing plate 33. The driving component 34 drives the scraper 35 to rotate so that the side of the scraper 35 away from the driving component 34 is close to the outer wall of the driving roller 22. The side of the scraper 35 tangent to the driving roller 22 is fixedly connected with the wedge-shaped sealing plate 33. While the filter mesh belt 23 is conveyed by the driving roller 22, the residue deposited on the outer wall of the driving roller 22 is scraped off by the scraper 35, and the scraped residue is discharged along the scraper 35 through the residue outlet 32. The cleaning component 4 is fixedly connected to the longitudinal bottom of the installation box 31, and the filter mesh belt 23 passes through the cleaning component 4 and is cleaned by the cleaning component 4 and then rolled on the outer wall of the driving roller 22.

[0028] In addition, a feed end is provided at the top of the box body 11, and a discharge end is provided at the lower end of the side wall of the box body 11. Waste slag is put in from the feed end, and the material filtered by the filter belt 23 is discharged from the discharge end, and the residue on the upper end surface of the filter belt 23 is discharged from the slag outlet 32.

[0029] It should be added that both ends of the driving roller 22 are rotatably connected to the side walls of the mounting groove 13, the side walls of the driving roller 22 are tangent to the side walls of the box body 11, and the two sides of the filter belt 23 are in contact with the side walls of the mounting groove 13 to prevent the waste residue from flowing directly to the discharge port without being filtered by the filter belt 23.

[0030] It should be noted that the driving component 34 includes a driving shaft, and driving blocks are rotatably connected at both ends of the driving shaft. The scraper 35 and the wedge-shaped sealing plate 33 near the bottom of the installation box 31 are fixedly connected to the side wall of the wedge-shaped sealing plate 33, and the driving component 34 is fixedly connected to the inner wall of the installation box 31. A torsion spring is arranged inside the driving component 34, and one end of the torsion spring is fixed on the driving shaft, and the other end is fixed in the driving block. A groove is opened at the corresponding position of the inner wall of the installation box 31, and the driving component 34 is located in the groove. The width of the scraper 35 is equal to the width of the inner cavity of the installation box 31.

[0031] See also Figure 4 and Figure 5 The cleaning assembly 4 includes a cleaning box 41, an inner wall of the cleaning box 41 is fixedly connected to an arc-shaped brush 43, an inner wall of the cleaning box 41 is rotatably connected to a cleaning roller 42, the cleaning roller 42 and the arc-shaped brush 43 are coaxially arranged, and the width of the gap between the outer wall of the cleaning roller 42 and the inner wall of the arc-shaped brush 43 is not greater than the thickness of the filter mesh belt 23, the cleaning roller 42 includes a roller body 422, the outer wall of the roller body 422 is provided with a C-shaped placement groove 421, an arc panel 423 is slidably connected in the C-shaped placement groove 421, and an elastic belt 424 is fixedly connected to one end of the arc panel 423 extending into the C-shaped placement groove 421, and the elastic belt 424 is fixedly connected to the bottom of the inner cavity of the C-shaped placement groove 421 on the side away from the arc panel 423, and the filter mesh belt 23 passes through the adjacent area of ​​the roller body 422 and the arc-shaped brush 43, and moves The lower end surface of the filter mesh belt 23 is cleaned by the arc brush 43, and the moving filter mesh belt 23 pushes the roller body 422 to rotate. The outer wall of the roller body 422 is divided into a portion A in contact with the filter mesh belt 23 and a portion B not in contact with the filter mesh belt 23. When the C-shaped placement groove 421 is located in the portion B, the rotating roller body 422 generates centrifugal force, causing the arc panel 423 to stretch the elastic band 424 to fly out from the inside of the C-shaped placement groove 421 and knock on the upper end surface of the filter mesh belt 23, promoting the falling off of the residue. After the knocking, the arc panel 423 is pulled by the deformed elastic band 424 to move into the C-shaped placement groove 421. When the C-shaped placement groove 421 is located in the portion A, the arc panel 423 is always located in the C-shaped placement groove 421 due to the resistance of the filter mesh belt 23. As the roller body 422 rotates, the arc panel 423 periodically knocks the filter mesh belt 23, thereby improving the cleaning efficiency of the arc brush 43 on the filter mesh belt 23.

[0032] It should be added that a cleaning agent is placed in the inner cavity of the slag outlet 32. The cleaning agent can be water, alcohol or other organic or inorganic solutions, but the cleaning agent does not chemically react with the substances in the entire filtering system.

[0033] It should also be added that the outer wall of the cleaning box 41 is provided with water inlet and outlet ends, which penetrate the installation box 31 and extend to the outside of the equipment, so as to facilitate the replacement of the cleaning agent.

[0034] Principle: Chemical waste is put into the box 11 from the feed end, and the material filtered by the two layers of filter belts 23 is discharged from the discharge end. The residue deposited on the upper end surface of the filter belt 23 is scraped off by the scraper 35 and guided to the residue outlet 32 ​​for discharge. The scraped filter belt 23 enters the cleaning box 41 through the feed port, and then passes through the cleaning agent layer into the adjacent area of ​​the roller body 422 and the arc brush 43. The lower end surface of the filter belt 23 is cleaned by the arc brush 43, and the upper end surface of the filter belt 23 pushes the roller body 422 to rotate. The centrifugal force generated by the rotation of the roller body 422 causes the arc panel 423 to stretch the elastic belt 424 to fly out and knock on the upper end surface of the filter belt 23, further promoting the falling off of the attachments on the surface of the filter belt 23. The cleaned filter belt 23 is driven to move by the driving roller 22 to continue filtering the waste.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A chemical waste slag filtering and scraping device, comprising a filter box (1) with an inlet and outlet, characterized in that: The filter box (1) comprises a box body (11), a side wall of the box body (11) is provided with a connecting groove (12), and an inner wall of the box body (11) is provided with two groups of mounting grooves (13) symmetrically; The inner cavity of the filter box (1) is provided with a filter assembly (2), the filter assembly (2) comprising a motor (21) and a filter mesh belt (23), the motor (21) driving the filter mesh belt (23) to move, and the filter mesh belt (23) filters the waste residue while moving; The side wall of the filter box (1) is provided with a scraping mechanism (3), the scraping mechanism (3) comprising a driving assembly (34), the outer wall of the driving assembly (34) being fixedly connected with a scraper (35), the scraper (35) scraping waste residue from the upper end surface of the filter mesh belt (23); A cleaning assembly (4) is installed in the inner cavity of the scraping mechanism (3), and the cleaning assembly (4) comprises a cleaning roller (42) and an arc-shaped brush (43). The filter mesh belt (23) passes through the adjacent area of ​​the cleaning roller (42) and the arc-shaped brush (43), and the arc-shaped brush (43) cleans the moving filter mesh belt (23).

2. A chemical waste slag filtering and scraping device according to claim 1, characterized in that: The filter assembly (2) further comprises a motor (21), the output end of the motor (21) being fixedly connected to a group of drive rollers (22), and the drive rollers (22) being transmission-connected to another group of drive rollers (22) via a filter mesh belt (23).

3. A chemical waste slag filtering and scraping device according to claim 2, characterized in that: The scraping mechanism (3) further comprises a mounting box (31), the driving assembly (34) being mounted on the front and rear side walls of the mounting box (31), the driving assembly (34) driving the scraper (35) to fit the outer wall of the filter mesh belt (23), and the scraper (35) is fixedly connected with a wedge-shaped sealing plate (33) on one side close to the driving roller (22) and the mounting box (31).

4. A chemical waste slag filtering and scraping device according to claim 1, characterized in that: The cleaning assembly (4) further comprises a cleaning box (41), wherein two side walls of the cleaning box (41) are respectively provided with a feed slot and a discharge slot, the two ends of the arc-shaped brush (43) are fixedly connected to the inner side wall of the cleaning box (41), the two ends of the cleaning roller (42) are rotatably connected to the inner side wall of the cleaning box (41), and the cleaning roller (42) and the arc-shaped brush (43) are coaxially arranged.

5. A chemical waste slag filtering and scraping device according to claim 4, characterized in that: The cleaning roller (42) comprises a roller body (422), a C-shaped placement groove (421) is provided in the roller body (422), a curved panel (423) is slidably connected in the C-shaped placement groove (421), a side of the curved panel (423) extending into the C-shaped placement groove (421) is fixedly connected to an elastic belt (424), and a side of the elastic belt (424) facing away from the curved panel (423) is fixedly connected to the bottom of the inner cavity of the C-shaped placement groove (421).

6. A chemical waste slag filtering and scraping device according to claim 5, characterized in that: The difference between the outer diameter of the roller body (422) and the inner diameter of the arc-shaped brush (43) does not exceed the thickness of the filter belt (23).

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