Chemical sewage filtering equipment

Abstract

The invention discloses chemical sewage filtering equipment which comprises a cylinder body, supporting legs, a water inlet pipe, a water outlet pipe, a filtering cylinder and a scraping mechanism, the filtering cylinder is placed in the cylinder body and on a supporting frame at the lower end, the filtering cylinder comprises an outer wall, a supporting framework, an inner wall, a filtering membrane, a spacer ring and a steel wire stay wire, and the outer wall and the inner wall are made of stainless steel materials. The outer wall and the inner wall are connected through a supporting framework to form a water filtering space; the outer wall is of a closed cylindrical structure, and the inner wall is of a rhombic hollowed-out net-shaped structure. The filter membrane is attached to the inner wall and is fixed in a segmented and equipotential manner through a plurality of spacer rings; the sewage filtering equipment adopts a filtering membrane technology to purify water quality, realizes water recycling, is quick and convenient to remove dirt on the membrane surface layer, prolongs the service life and is simple in structure.

Description

Technical Field

[0001] This invention relates to a chemical wastewater filtration device, particularly a filtration device for secondary filtration and purification of wastewater in sedimentation tanks. Background Technology

[0002] For chemical enterprises, adopting membrane filtration technology to purify water and achieve water recycling is an important measure to improve water resource utilization and reduce discharge costs. This technology efficiently removes pollutants using mechanisms such as physical sieving and adsorption; however, in practical applications, factors such as technology selection, operation management, and economics must be comprehensively considered. In actual industrial production processes, the utilization rate of membrane filtration is low, mainly because surface fouling cannot be treated promptly during operation, significantly reducing filtration efficiency. High-pressure water jets are used to clean the membrane surface, which can be damaging; backwashing is extremely difficult to remove clumps of fouling from the membrane surface. Summary of the Invention

[0003] The purpose of this invention is to provide a wastewater filtration device that is quick and convenient to remove dirt from the membrane surface, improves the service life of the equipment, and has a simple structure.

[0004] The objective of this invention is achieved through the following technical solution: This chemical wastewater filtration equipment includes a cylinder, support legs, an inlet pipe, an outlet pipe, a filter cylinder, and a scraping mechanism. The filter cylinder is placed inside the cylinder on a support frame at its lower end. The filter cylinder includes an outer wall, a support frame, an inner wall, a filter membrane, spacer rings, and a steel wire tie. The outer and inner walls are made of stainless steel and are connected by the support frame to form a filtration space. The outer wall has a closed cylindrical structure, and the inner wall has a diamond-shaped perforated mesh structure. The filter membrane is attached to the inner wall and is fixed in sections by multiple spacer rings. The scraping mechanism consists of a motor, a sleeve, a pull rope rod, a fixed wheel on the sleeve, a pull rope, a pulley, and a scraping assembly installed at the bottom of the sleeve. The scraping assembly includes a flat ring, a horizontal cross support rod, an annular rubber sheet, an arc-shaped spring, a vibrating ring, a spring fixing lock, and rubber fixing bolts. The flat ring is welded to the horizontal cross support rod. The upper part of the flat ring has four or more equidistant arc-shaped springs. One end of the arc-shaped spring is connected to the upper part of the corresponding flat ring on the cross support rod through a spring fixing lock, and the other end of the arc-shaped spring is welded to the vibrating ring. The lower part of the flat ring is fitted with an annular rubber sheet, which is pressed by an annular flat steel and then fixed with fixing bolts. The sleeve in the scraping mechanism is fitted onto a fixed upright rod on the support frame, and the sleeve can move freely up and down on the upright rod.

[0005] The multiple spacer rings are connected and fixed to the outer wall by steel wires; the steel wires are connected to the spacer rings by welding, and the steel wires are welded to the tangent of the outer ring of each spacer ring.

[0006] The steel wire is connected by a spring tensioner installed on the outer wall to maintain a constant tension balance, and the diameter of the spacer ring is 0.5-1.0 cm.

[0007] The flat circular ring and the horizontal cross support rod are made of the same material thickness, and a sleeve is provided at the center of the horizontal cross support rod.

[0008] The diameter of the vibrating ring and the length of the protruding ring rubber are proportional. The vibrating ring and the protruding ring rubber are in the same vertical position, and the length of the protruding ring rubber is 1.3 to 1.5 times the diameter of the vibrating ring.

[0009] The spacing between the spacer ring in the filter cartridge and the vibrating ring in the scraping assembly is controlled to be 0.2-0.5 cm at the same horizontal position.

[0010] A pull rope is fixed to a fixed wheel on the sleeve, and a rope wheel is fixed at the upper end of the pull rope rod. The pull rope is linked to the motor through the rope wheel, which makes the sleeve move up and down.

[0011] The water inlet pipe enters the filter cylinder from the top of the cylinder, and the water outlet pipe is installed at the bottom of the cylinder; the bottom of the cylinder forms a storage pool, and the sludge is removed by opening the screw cap.

[0012] A pressure control switch is installed on the water inlet pipe. If the pressure in the cylinder is too high, the pressure control switch will cut off the water supply.

[0013] A water outlet is located at the bottom of the outer wall, and the water outlet is connected to the water outlet pipe.

[0014] The advantages of this invention are as follows: The device adopts a vertical cylindrical filtration system from the inside out. When dirt accumulates on the surface of the filter membrane inside the cylinder, a scraping mechanism moves up and down, causing the rubber to scrape the surface of the filter membrane to remove the dirt. If the rubber is sticky with dirt, when the vibrating ring and the spacer ring are on the same horizontal line, the vibrating ring and the spacer ring clamp the ring-shaped rubber, allowing the dirt to leak out. More importantly, the vibrating ring is welded with steel wire to form an integral elastic mesh, and the steel wire is connected to a spring tensioner to avoid hard contact, reduce wear, and extend the service life of the rubber. The relative position between the surface of the filter membrane and the rubber is stable, minimizing damage to the membrane and improving filtration efficiency. This device has a simple structure, is convenient and quick to implement, and is easy for enterprises to manage.

[0015] The present invention will be further described in detail with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention.

[0017] Figure 2 This is a cross-sectional view of the filter cartridge of the present invention.

[0018] Figure 3 This is a top view of the filter cartridge of the present invention.

[0019] Figure 4 This is a schematic diagram of the structure of the rubber assembly of the present invention.

[0020] 1. Cylinder body 2. Support leg 3. Inlet pipe 4. Scraping assembly 5. Filter cylinder 6. Support frame 7. Outer wall 8. Support frame 9. Inner wall 10. Filter membrane 11. Spacer ring 12. Steel wire pull line 13. Motor 14. Sleeve 15. Pull rope rod 16. Fixed wheel 17. Pull rope 18. Rope wheel 19. Flat ring 20. Horizontal cross support rod 21. Ring rubber 22. Arc-shaped spring 23. Vibrating ring 24. Spring fixing lock 25. Rubber fixing bolt 26. Upright rod 27. Water outlet 28. Spring tensioner 29. Screw cap 30. Pressure control switch 31. Water outlet pipe.

[0021] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 As can be seen, this type of chemical wastewater filtration equipment includes a cylinder 1, support legs 2, inlet pipe 3, outlet pipe 31, filter cylinder 5, and scraping mechanism. The filter cylinder 5 is placed inside the cylinder 1 on the support frame 6 at its lower end. The filter cylinder 1 includes an outer wall 7, a support frame 8, an inner wall 9, a filter membrane 10, spacer rings 11, and steel wire 12. The outer wall 7 and the inner wall 9 are made of stainless steel and are connected by the support frame 8 to form a filtration space. The outer wall 7 is a closed cylindrical structure, and the inner wall 9 is a diamond-shaped perforated mesh structure. The filter membrane 10 is attached to the inner wall 9 and is fixed in segments by multiple spacer rings 11. The scraping mechanism consists of a motor 13, a sleeve 14, a pull rope rod 15, a fixed wheel 16 on the sleeve, a pull rope 17, a rope wheel 18, and a scraping assembly 4 installed at the bottom of the sleeve. The scraping assembly 4 includes a flat ring 19, a horizontal cross support rod 20, an annular rubber sheet 21, an arc-shaped spring piece 22, a vibrating ring 23, a spring piece fixing lock 24, and a rubber sheet fixing bolt 25. The flat ring 19 is welded to the horizontal cross support rod 20. The upper part of the flat ring 19 is provided with four or more equally spaced arc-shaped spring pieces 22. One end of the arc-shaped spring piece 22 is connected to the upper part of the corresponding flat ring on the cross support rod through the spring piece fixing lock, and the other end of the arc-shaped spring piece is welded to the vibrating ring 23. The lower part of the flat ring 19 is fitted with an annular rubber sheet 21, which is pressed by an annular flat steel and then fixed by the fixing bolt 25. The sleeve 14 in the scraping mechanism is fitted onto the fixed upright rod 26 on the support frame, and the sleeve 14 can move freely up and down on the upright rod 26.

[0022] Multiple spacer rings 11 are connected and fixed to the outer wall 7 by steel wires 12; the steel wires 12 are connected to the spacer rings 11 by welding, and the steel wires are welded to the tangent of the outer ring of each spacer ring 11.

[0023] The steel wire 11 is connected by a spring tensioner 28 installed on the outer wall to maintain a constant tension balance, and the diameter of the spacer ring is 0.5-1 cm.

[0024] The flat circular ring 19 and the horizontal cross support rod 20 are made of the same material thickness, and a sleeve 14 is provided at the center of the horizontal cross support rod.

[0025] The diameter of the vibrating ring 23 is 0.6-1.2 cm. The diameter of the vibrating ring 23 and the extension length of the ring-shaped rubber 21 are proportional. The vibrating ring 23 and the ring-shaped rubber 21 are in the same vertical position. The extension length of the ring-shaped rubber is 1.3-1.5 times the diameter of the vibrating ring.

[0026] The spacing between the spacer ring 11 in the filter cartridge 5 and the vibrating ring 23 in the corresponding scraping assembly 4 at the same horizontal position is controlled to be 0.2-0.5 cm.

[0027] A pull rope 17 is fixed to a fixed wheel 16 on the sleeve, and a rope wheel 18 is fixed to the upper end of the pull rope rod 15. The pull rope 17 is linked with the motor 13 through the rope wheel 18, so that the sleeve moves up and down.

[0028] The inlet pipe 3 enters the filter cylinder 5 from the top of the cylinder 1, and the outlet pipe 31 is installed at the lower end of the cylinder 1; a storage pool is formed at the bottom of the cylinder 1, and the sludge is removed by opening the screw cap 29.

[0029] A pressure control switch 30 is installed on the water inlet pipe. If the pressure in the cylinder 1 is too high, the pressure control switch 30 will cut off the water supply.

[0030] A water outlet 27 is provided at the bottom of the outer wall 7; the water outlet 27 is connected to the water outlet pipe 4.

Claims

1. A chemical wastewater filtration device, comprising a cylinder (1), supporting legs (2), an inlet pipe (3), an outlet pipe (31), a filter cylinder (5), and a scraping mechanism, characterized in that: The filter cartridge (5) is placed inside the cylinder (1) and on the support frame (6) at the lower end. The filter cartridge (1) comprises an outer wall (7), a support frame (8), an inner wall (9), a filter membrane (10), spacer rings (11), and a steel wire (12). The outer wall (7) and inner wall (9) are made of stainless steel and are connected by the support frame (8) to form a filtration space. The outer wall (7) is a closed cylindrical structure, and the inner wall (9) is a diamond-shaped perforated mesh structure. The filter membrane (10) is attached to the inner wall (9) and is fixed in sections by multiple spacer rings (11). The scraping mechanism consists of a motor (13), a sleeve (14), a pull rope rod (15), a fixed wheel (16) on the sleeve, a pull rope (17), a rope wheel (18), and a scraping assembly (4) installed at the bottom of the sleeve; The scraping assembly (4) includes a flat ring (19), a horizontal cross support rod (20), an annular rubber (21), an arc-shaped spring (22), a vibrating ring (23), a spring fixing lock (24), and a rubber fixing bolt (25). The flat ring (19) is welded to the horizontal cross support rod (20). The upper part of the flat ring (19) is provided with four or more equally spaced arc-shaped springs (22). One end of the arc-shaped spring (22) is connected to the upper part of the flat ring corresponding to the cross support rod through the spring fixing lock. The other end of the arc-shaped spring is welded to the vibrating ring (23). The lower part of the flat ring (19) is fitted with an annular rubber (21) which is pressed by an annular flat steel and then fixed by a fixing bolt (25). The sleeve (14) in the scraping mechanism is fitted onto the fixed upright rod (26) on the support frame, and the sleeve (14) can move freely up and down on the upright rod (26).

2. The chemical wastewater filtration equipment according to claim 1, characterized in that: The multiple spacer rings (11) are connected and fixed to the outer wall (7) by steel wire (12); the steel wire (12) is connected to the spacer ring (11) by welding, and the steel wire is welded to the outer ring tangent of each spacer ring (11).

3. The chemical wastewater filtration equipment according to claim 1, characterized in that: The steel wire (11) is connected by a spring tensioner (28) installed on the outer wall to maintain a constant tension balance, and the diameter of the spacer ring is 0.5-1 cm.

4. The chemical wastewater filtration equipment according to claim 1, characterized in that: The flat ring (19) and the horizontal cross support rod (20) have the same material thickness, and the horizontal cross support rod is provided with a sleeve (14) at the center. The diameter of the vibrating ring (23) and the extension length of the ring rubber (21) are proportional. The vibrating ring (23) and the ring rubber (21) are in the same vertical position. The extension length of the ring rubber is 1.3 to 1.5 times the diameter of the vibrating ring.

5. The chemical wastewater filtration equipment according to claim 1, characterized in that: The spacing between the spacer ring (11) in the filter cartridge (5) and the vibrating ring (23) in the scraping assembly (4) at the same horizontal position is controlled to be 0.2-0.5 cm.

6. The chemical wastewater filtration equipment according to claim 1, characterized in that: A pull rope (17) is fixed on a fixed wheel (16) on the sleeve. A rope wheel (18) is fixed at the upper end of the pull rope rod (15). The pull rope (17) is linked with the motor (13) through the rope wheel (18), so that the sleeve moves up and down.

7. The chemical wastewater filtration equipment according to claim 1, characterized in that: The inlet pipe (3) enters the filter cylinder (5) from the top of the cylinder (1), and the outlet pipe (31) is installed at the lower end of the cylinder (1); a storage pool is formed at the bottom of the cylinder (1), and the sludge is removed by opening the screw cap (29).

8. The chemical wastewater filtration equipment according to claim 1, characterized in that: A pressure control switch (30) is installed on the water inlet pipe. If the pressure in the cylinder (1) is too high, the pressure control switch (30) will cut off the water supply.

9. The chemical wastewater filtration equipment according to claim 1, characterized in that: A water outlet (27) is provided at the bottom of the outer wall (7); the water outlet (27) is connected to the water outlet pipe (4).

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