Anti-blocking multi-stage filtering grating for pretreatment of sewage in coal chemical industry

Abstract

The utility model discloses an anti-blocking multi-stage filtering grid for pretreating sewage in the coal chemical industry. The anti-blocking multi-stage filtering grid comprises a grid main body structure and a gap adjusting mechanism arranged on the grid main body structure, the grid main body structure comprises a grid main body supporting plate, and a plurality of grid filtering through grooves which penetrate through the two sides of the grid main body supporting plate and vertically extend are formed in the grid main body supporting plate; the upper end and the lower end of the grille body supporting plate are each fixedly provided with a body connecting plate, the body connecting plates are connected with a plurality of vertically-extending clearance fit columns, the multiple clearance fit columns are in clearance fit in the grille filtering through grooves in a one-to-one correspondence mode, and grille filtering gaps are formed between the outer side walls of the clearance fit columns and the inner side walls of the grille filtering through grooves; the multiple filter grids are arranged in series, the mode of combining rough filtration, fine filtration and refined filtration is conveniently adopted, the grid bar spacing of each filter grid can be adaptively adjusted according to the actual situation, and it is ensured that impurities of various sizes in sewage can be effectively intercepted.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment filter grilles, in particular to an anti-clogging multi-stage filter grille for pre-treatment of coal chemical wastewater. Background Art

[0002] In coal chemical wastewater pretreatment, filter screens are the first line of defense. They are primarily used to intercept larger solid impurities in wastewater, such as coal slag, wood chips, and fibers. If these large particles are not removed, they can cause blockage, wear, and other damage to subsequent treatment equipment, such as pumps, pipes, and valves, affecting the normal operation of the entire wastewater treatment system.

[0003] However, the bar spacing of current filter grilles is generally fixed and cannot be adaptively adjusted according to actual conditions. In addition, once the current filter grilles are clogged, they are inconvenient to clean, and their functional structure needs to be further improved and optimized. Utility Model Content

[0004] The purpose of the utility model is to provide an anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment, the grid bar spacing can be adaptively adjusted according to actual conditions, and the anti-clogging performance is excellent.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment, comprising a grid main structure and a gap adjustment mechanism arranged on the grid main structure;

[0007] The grille main body structure includes a grille main body support plate, and the grille main body support plate has a plurality of grille filtering slots running through both sides thereof and extending vertically;

[0008] A main connecting plate is fixed at each of the upper and lower ends of the grille main support plate, and a plurality of vertically extending clearance fitting columns are connected to the main connecting plate. The plurality of clearance fitting columns are clearance-fitted in each grille filter groove one by one, and a grille filter gap is formed between the outer side wall of the clearance fitting column and the inner side wall of the grille filter groove.

[0009] Preferably, the main connecting plate has a plurality of gap adjustment slots extending perpendicular to the plane of the grille main support plate, and a coaxially arranged gap adjustment support slide is fixed to each of the upper and lower ends of the gap matching column, and the gap adjustment support slides are slidably connected to each gap adjustment slot one by one;

[0010] The gap adjustment mechanism includes a gap adjustment drive plate slidably connected to the top of the main connecting plate. The gap adjustment drive plate has a plurality of inclined drive constraint slots, and the gap adjustment support slide columns are slidably connected in each drive constraint slot one by one.

[0011] Note: The gap adjustment mechanism can be used to adaptively adjust the bar spacing of each filter screen according to actual conditions, ensuring that impurities of various sizes in sewage can be effectively intercepted.

[0012] Preferably, an anti-blocking cutting mechanism is provided on the clearance fitting column, the interior of the clearance fitting column is a hollow structure, and an outer wall of the clearance fitting column is provided with a blade connecting slot connected to the interior thereof, the anti-blocking cutting mechanism includes a cutting blade slidably connected in the blade connecting slot, and the blade of the cutting blade faces the outside of the clearance fitting column;

[0013] The inside of the clearance fitting column is connected to the blade extension drive plate in a vertical sliding manner, and the blade extension drive plate has a blade drive constraint groove. An extension drive fitting column is fixed to the side of the cutting blade, and the extension drive fitting column is slidably connected to the blade drive constraint groove.

[0014] Description: The anti-clogging cutting mechanism can be used to cut these blockages, and then the high-speed water flow is used to flush the filter grille to achieve the cleaning function of the filter grille.

[0015] Preferably, a lifting drive fixed cylinder with an upward opening is fixed inside the clearance fitting column, a lifting drive sliding cylinder with a downward opening is slidably connected inside the lifting drive fixed cylinder, and the outer end of the lifting drive sliding cylinder is fixedly connected to the blade extending drive plate;

[0016] A lifting drive telescopic rod for driving the lifting drive sliding cylinder to move up and down is arranged in the lifting drive fixed cylinder.

[0017] Description: The lifting drive of the lifting drive telescopic rod is converted into the outward extension drive of the cutting blade through the restraining effect of the outward extension drive matching column and the blade drive restraining groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0019] 1. The utility model has a reasonable structural design and high-efficiency filtering ability. Multiple filter grids arranged in series facilitate the combination of coarse filtration, fine filtration and precise filtration. The bar spacing of each filter grid can be adaptively adjusted according to actual conditions to ensure that impurities of various sizes in sewage can be effectively intercepted.

[0020] 2. This utility model has an excellent anti-clogging mechanism. When the filter grille is clogged to a certain extent, the cleaning mode can be turned on. The gap adjustment mechanism is used to adjust the bar spacing to the maximum, and then the filter grille is flushed with high-speed water flow to flush away the blockage.

[0021] 3. The utility model can cut stubborn fiber blockages by using an anti-blocking cutting mechanism, and then flush the filter grid with high-speed water flow to achieve a cleaning function for the filter grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is the main view of the utility model;

[0023] Figure 2 yes Figure 1 Left view of;

[0024] Figure 3 yes Figure 1 A top view of

[0025] Figure 4 This is a top view of the gap adjustment drive plate of the utility model;

[0026] Figure 5 It is a top view of the anti-blocking cutting mechanism of the utility model.

[0027] In the figure, 10-grid main structure, 11-grid main support plate, 110-grid filter groove, 12-main connecting plate, 121-gap adjustment slide, 13-gap matching column, 130-grid filter gap, 131-gap adjustment support slide column, 20-gap adjustment mechanism, 21-gap adjustment drive plate, 211-drive constraint slide, 30-anti-blocking cutting mechanism, 301-knife plate connecting slide, 31-cutting knife plate, 32-knife plate extension drive plate, 320-knife plate drive constraint groove, 321-extension drive matching column, 331-lifting drive fixed cylinder, 332-lifting drive sliding cylinder, 333-lifting drive telescopic rod. DETAILED DESCRIPTION

[0028] The following combination Figure 1-Figure 5 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are consistent with the up, down, left, right, front and back directions of the projection relationship of each main view or structural schematic diagram itself.

[0029] Example 1:

[0030] An anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment, such as Figure 1 As shown, it includes a grille main structure 10 and a gap adjustment mechanism 20 provided on the grille main structure 10;

[0031] The grille main structure 10 includes a grille main support plate 11, and the grille main support plate 11 has a plurality of grille filtering slots 110 extending vertically and passing through both sides thereof;

[0032] like Figure 3 As shown, the cross section of the grille filter slots 110 is an isosceles trapezoidal structure, and the height of the isosceles trapezoidal structure is perpendicular to the plane where the grille main body support plate 11 is located. The multiple grille filter slots 110 are arranged along the width direction of the grille main body support plate 11, and the grille filter slots 110 are arranged alternately in the forward and reverse directions.

[0033] like Figure 3 As shown, a main body connecting plate 12 is fixed to each of the upper and lower ends of the grille main body support plate 11. A plurality of vertically extending clearance fitting columns 13 are connected to the main body connecting plate 12. The plurality of clearance fitting columns 13 are clearance-fitted in each grille filter slot 110 in a one-to-one correspondence. A grille filter gap 130 is formed between the outer side wall of the clearance fitting column 13 and the inner side wall of the grille filter slot 110.

[0034] like Figure 3 As shown, the cross section of the clearance fit column 13 is an isosceles trapezoidal structure.

[0035] like Figure 2 As shown, the main connecting plate 12 has a plurality of gap adjustment slots 121 extending perpendicular to the plane of the grille main support plate 11. A coaxially arranged gap adjustment support slide 131 is fixed to each of the upper and lower ends of the gap fitting column 13. The gap adjustment support slides 131 are slidably connected to each gap adjustment slot 121 in a one-to-one correspondence.

[0036] like Figure 2 As shown, the gap adjustment mechanism 20 includes a gap adjustment drive plate 21 slidably connected to the top of the main connecting plate 12. The gap adjustment drive plate 21 has a plurality of inclined drive constraint slots 211. The gap adjustment support slide posts 131 are slidably connected to each drive constraint slot 211 one by one.

[0037] The gap adjustment driving plate 21 slides along the width direction of the grille main body support plate 11. The gap adjustment driving plate 21 is driven by a servo motor of the prior art fixed on the main body connecting plate 12 through a gear rack transmission. Figure 4 As shown, the driving constraint sliding groove 211 and the sliding direction of the gap adjustment driving plate 21 form an angle of 20°.

[0038] A direction-constraining slider is fixed to the end of the clearance-fitting column 13, and a direction-constraining slot is provided on the side of the main connecting plate 12 close to the clearance-fitting column 13. The extension direction of the direction constraint is perpendicular to the plane where the grille main body support plate 11 is located. The direction-constraining slider slides in the direction-constraining slot to constrain the moving direction of the clearance-fitting column 13, so that the clearance-fitting column 13 can only move in a direction perpendicular to the plane where the grille main body support plate 11 is located, thereby adjusting the size of the grille filter gap 130.

[0039] Example 2:

[0040] On the basis of Example 1, Figure 5 As shown, an anti-blocking cutting mechanism 30 is provided on the clearance fitting column 13. The interior of the clearance fitting column 13 is a hollow structure. A blade connecting slot 301 communicating with the interior is provided on the outer wall of the clearance fitting column 13. The blade connecting slot 301 extends in the vertical direction. The anti-blocking cutting mechanism 30 includes a cutting blade 31 slidably connected in the blade connecting slot 301. The blade of the cutting blade 31 faces the outside of the clearance fitting column 13.

[0041] The clearance fitting column 13 is vertically connected to a blade extending drive plate 32, which has a blade drive constraint groove 320. An extending drive fitting column 321 is fixed to the side of the cutting blade 31, and the extending drive fitting column 321 is slidably connected to the blade drive constraint groove 320.

[0042] The blade driving restraining groove 320 is arranged to extend obliquely at an angle of 20 degrees to the vertical direction.

[0043] A lifting drive fixed cylinder 331 with an upward opening is fixed inside the clearance fitting column 13, and a lifting drive sliding cylinder 332 with a downward opening is slidably connected inside the lifting drive fixed cylinder 331. The outer end of the lifting drive sliding cylinder 332 is fixedly connected to the blade extension drive plate 32;

[0044] A lifting drive telescopic rod 333 is provided in the lifting drive fixed cylinder 331 for driving the lifting drive sliding cylinder 332 to move up and down. The lifting drive telescopic rod 333 is an electrically controlled telescopic rod in the prior art. The outer rod end of the lifting drive telescopic rod 333 is fixedly connected to the bottom of the lifting drive fixed cylinder 331, and the inner rod end of the lifting drive telescopic rod 333 is fixedly connected to the top of the lifting drive sliding cylinder 332.

[0045] In actual application, the utility model arranges multiple filter grilles of the utility model in series in a filter flow tank. From upstream to downstream, the size of the filter gap 130 in each filter grille is adjusted so that the size of the filter gap 130 is reduced in sequence. The size of the filter gap 130 in the first filter grille upstream is 20 mm. From upstream to downstream, the size of the filter gap 130 in the two adjacent filter grilles is reduced by 10% in sequence, so as to filter impurities of various sizes in sequence.

[0046] The size adjustment process of the grille filter gap 130 is as follows: the gap adjustment drive plate 21 slides along the width direction of the grille main body support plate 11, and the gap adjustment drive plate 21 is driven by a conventional servo motor fixed to the main body connecting plate 12 through a gear rack transmission;

[0047] Under the mutual constraint of the driving constraint chute 211 and the gap adjustment support slide post 131, the gap adjustment support slide post 131 drives the gap matching posts 13 to move along the direction of the gap adjustment chute 121, thereby adjusting the distance between each gap matching post 13 and the grille filter slot 110, thereby changing the size of the grille filter gap 130;

[0048] When it is necessary to clean the fiber blockage in the filter gap 130 of the grid, the anti-blocking cutting mechanism 30 is used to cut the fiber blockage.

[0049] The inner rod of the lifting drive telescopic rod 333 extends to drive the lifting drive sliding cylinder 332 to move upward together with the knife plate extension drive plate 32. Under the mutual constraint of the knife plate drive constraint groove 320 and the extension drive matching column 321, the upward movement of the extension drive plate 32 can drive the cutting knife plate 31 to move outward along the knife plate connecting slide groove 301, and the blade of the cutting knife plate 31 can be used to cut the fiber blockage in the grille filter gap 130. Then the inner rod of the lifting drive telescopic rod 333 retracts, and the cutting knife plate 31 is driven in reverse to retract into the knife plate connecting slide groove 301.

Claims

1. An anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment, characterized in that: It comprises a grille main structure (10), and a gap adjustment mechanism (20) arranged on the grille main structure (10); The grille main body structure (10) comprises a grille main body support plate (11), and the grille main body support plate (11) has a plurality of grille filtering slots (110) extending vertically and passing through both sides thereof; A main connecting plate (12) is fixed to each of the upper and lower ends of the grille main support plate (11); a plurality of vertically extending clearance fitting columns (13) are connected to the main connecting plate (12); the plurality of clearance fitting columns (13) are clearance-fitted in each grille filter slot (110) in a one-to-one correspondence; a grille filter gap (130) is formed between the outer side wall of the clearance fitting column (13) and the inner side wall of the grille filter slot (110).

2. The anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment according to claim 1, characterized in that: The main connecting plate (12) has a plurality of gap adjustment slots (121) extending along a plane perpendicular to the grid main support plate (11), and the upper and lower ends of the gap matching column (13) are each fixed with a coaxially arranged gap adjustment support sliding column (131), and the gap adjustment support sliding columns (131) are slidably connected in each gap adjustment slot (121) in a one-to-one correspondence; The gap adjustment mechanism (20) comprises a gap adjustment driving plate (21) slidably connected to the top of the main connecting plate (12); the gap adjustment driving plate (21) has a plurality of inclined driving constraint sliding grooves (211); and the gap adjustment supporting sliding columns (131) are slidably connected in each driving constraint sliding groove (211) in a one-to-one correspondence.

3. The anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment according to claim 1, characterized in that: The clearance fitting column (13) is provided with an anti-blocking cutting mechanism (30), the interior of the clearance fitting column (13) is a hollow structure, the outer wall of the clearance fitting column (13) is provided with a blade connecting slot (301) connected to the interior thereof, the anti-blocking cutting mechanism (30) includes a cutting blade (31) slidably connected in the blade connecting slot (301), and the blade of the cutting blade (31) faces the outside of the clearance fitting column (13); The clearance fitting column (13) is slidably connected to a blade plate extending drive plate (32) in a vertical direction, and the blade plate extending drive plate (32) has a blade plate drive constraint groove (320). An extending drive fitting column (321) is fixed to the side of the cutting blade (31), and the extending drive fitting column (321) is slidably connected to the blade plate drive constraint groove (320).

4. The anti-clogging multi-stage filter grid for coal chemical wastewater pretreatment according to claim 3, characterized in that: A lifting drive fixed cylinder (331) with an upward opening is fixed inside the clearance fitting column (13), a lifting drive sliding cylinder (332) with a downward opening is slidably connected inside the lifting drive fixed cylinder (331), and the outer end of the lifting drive sliding cylinder (332) is fixedly connected to the knife plate extension drive plate (32); The lifting drive fixed cylinder (331) is provided with a lifting drive telescopic rod (333) for driving the lifting drive sliding cylinder (332) to move upward and downward.

Images