Sand filtration system convenient for filler replacement

Abstract

The utility model belongs to the technical field of sand filtration systems, and discloses a sand filtration system convenient for filler replacement, which comprises a sand filtration tank, a filtration pipeline is connected onto the sand filtration tank, a plurality of backwash filter heads are mounted at the bottom end in the sand filtration tank, and the pipeline connected with the sand filtration tank and the backwash filter heads at the bottom of the sand filtration tank are consistent with those of a conventional sand filtration system. A plurality of bearing cylinders are arranged above the back-flushing filter head, bearing materials are arranged in the bearing cylinders, a filter cylinder is arranged above the bearing cylinders, bearing materials and filter materials are arranged in the filter cylinder, lifting holes are formed in the bearing cylinders and the filter cylinder, a lifting device is arranged above the sand filter tank, and the lifting device is connected with the sand filter tank. When the filter is used, the bearing material and the filter material are not easy to disperse, only the filter barrel filler needs to be replaced every time, the bearing barrel filler does not need to be replaced, only the bearing barrels need to be lifted out in sequence, washed by a high-pressure water gun and then put back, and a large amount of material cost and solid waste disposal cost are saved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand filter systems, and in particular relates to a sand filter system which is convenient for replacing fillers. Background Art

[0002] Sand filter systems such as sand filter tanks and sand filter tanks are commonly used devices in water treatment to reduce suspended matter in water. The structure of the sand filter system is: a certain number of backwash pipes are arranged at the bottom, and multiple layers of crushed gravel are arranged upwards as a supporting layer, and a certain thickness of quartz sand is installed on the supporting layer as a filter layer.

[0003] After a period of use, the sand filter device accumulates more and more impurities and needs to be backwashed regularly. The existing backwash water will impact the filter material and the supporting layer. Over time, the internal filler of the sand filter system will gradually become chaotic, which will cause the filtration and backwashing effects to deteriorate. For example, the sand filter device used for wastewater treatment and filtration generally needs to be replaced once a year. Manual cleaning is required to remove all the supporting materials and filter materials. The workload is large, and the filler needs to be re-purchased and filled. The replacement cost is high, especially for industrial wastewater sand filter systems. The replaced filler generally needs to be disposed of as hazardous waste, which is even more expensive. Utility Model Content

[0004] The purpose of the utility model is to provide a sand filter system which is convenient for replacing fillers, so as to solve the problems in the above-mentioned background technology that backwash water disturbs the fillers, and each time the filter material is replaced, the supporting layer needs to be replaced together, resulting in large replacement workload and high cost.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sand filter system that is convenient for replacing fillers, comprising: a sand filter tank, a filter pipe connected to the sand filter tank, a plurality of backwash filter heads installed at the bottom end of the sand filter tank, and the pipe connected to the sand filter tank and the backwash filter head at the bottom of the sand filter tank are consistent with conventional sand filter systems, a plurality of supporting cylinders are arranged above the backwash filter heads, a plurality of the supporting cylinders are provided with supporting materials, a filter cylinder is arranged above the plurality of the supporting cylinders, a supporting material and filter material are provided in the filter cylinder, a lifting hole is provided on the supporting cylinder and the filter cylinder, and a lifting device is installed above the sand filter tank.

[0006] Preferably, a wire mesh supporting device is installed at the bottom of the supporting cylinder and the filter cylinder, and the aperture of the wire mesh is smaller than the particle size of the supporting material or filter material it contacts.

[0007] Preferably, each of the supporting tubes is filled with two kinds of graded supporting materials, the particle size of the supporting materials gradually decreases from bottom to top, and the upper supporting material of the next supporting tube is consistent in gradation with the lower supporting material of the previous supporting tube. The lower layer of the filter tube is filled with a layer of supporting material, and the upper layer of the filter tube is filled with filter material. The gradation of the supporting material in the filter tube is consistent with the gradation of the upper supporting material in the uppermost supporting tube.

[0008] Preferably, the outer diameters of the support cylinder and the filter cylinder are both smaller than the inner diameter of the sand filter tank, a V-shaped caulking soft ring is installed on the top of the filter cylinder, and the V-shaped caulking soft ring fits against the inner wall of the sand filter tank.

[0009] Preferably, the lifting device includes a bracket, an electric hoist and a cross hanger, the bracket is connected to the side wall of the sand filter tank, the electric hoist is installed on the bracket, the cross hanger is connected to the output end of the electric hoist, and a hook is provided at each end of the hanger, and the hook is adapted to the lifting hole.

[0010] Preferably, the bracket is composed of a supporting steel pipe and a sleeve steel pipe, the sleeve steel pipe is welded and fixed to the side wall of the sand filter tank, and the inner diameter of the sleeve steel pipe is larger than the outer diameter of the supporting steel pipe, the supporting steel pipe is inserted into the sleeve steel pipe and falls to the bottom, a rotatable disc is provided at the bottom of the supporting steel pipe, and the supporting steel pipe can rotate freely in the sleeve steel pipe.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] (1) The utility model provides a supporting cylinder, a filter cylinder, and a supporting material and a filter material. During the backwashing process of the sand filter device, the supporting material and the filter material are not easily dispersed or disturbed. Each time, only the filter cylinder filler needs to be replaced, and the supporting cylinder filler does not need to be replaced. The supporting cylinder only needs to be lifted out in turn, rinsed with a high-pressure water gun, and then put back, thereby saving a lot of material costs and solid waste disposal costs.

[0013] (2) The utility model removes the supporting cylinder and the filter cylinder from the sand filter tank by setting a lifting device, and conveniently lifts them back into the sand filter tank for reuse, thereby greatly improving work efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the utility model;

[0015] Figure 2 This is a structural diagram of the sand filter tank of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the lifting device of the utility model;

[0017] Figure 4This is a schematic structural diagram of the support tube of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the filter cartridge of the utility model;

[0019] Figure 6 for Figure 1 A magnified view of part A in FIG;

[0020] Figure 7 for Figure 2 A magnified view of part B in FIG;

[0021] In the figure: 1. Sand filter tank; 2. Filter pipe; 3. Backflush filter head; 4. Support cylinder; 5. Support material; 6. Filter cylinder; 7. Filter material; 8. Wire mesh; 9. Bracket; 10. Electric hoist; 11. Cross hanger; 12. Hook; 13. Lifting hole; 14. V-shaped caulking soft ring; 15. Support steel pipe; 16. Sleeve steel pipe. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1-6 As shown, the utility model provides the following technical solutions: a sand filter system that is convenient for replacing fillers, comprising: a sand filter tank 1, a filter pipe 2 is connected to the sand filter tank 1, a plurality of recoil filter heads 3 are installed at the bottom end of the sand filter tank 1, a plurality of supporting cylinders 4 are arranged above the recoil filter heads 3, a plurality of supporting cylinders 4 are each provided with supporting materials 5, a filter cylinder 6 is arranged above the plurality of supporting cylinders 4, a supporting material 5 and a filter material 7 are arranged inside the filter cylinder 6, a lifting hole 13 is provided on the supporting cylinder 4 and the filter cylinder 6, and a lifting device is installed above the sand filter tank 1.

[0024] Furthermore, a steel mesh 8 supporting device is installed at the bottom of the supporting cylinder 4 and the filter cylinder 6, and the pore size of the steel mesh 8 is slightly smaller than the particle size of the supporting material 5 or the filter material 7 it contacts.

[0025] Furthermore, each supporting tube 4 is filled with two kinds of graded supporting materials 5, the particle size of the supporting materials 5 gradually decreases from bottom to top, and the upper supporting material 5 of the next supporting tube 4 is graded consistently with the lower supporting material 5 of the previous supporting tube 4. The lower layer of the filter tube 6 is filled with a layer of supporting material 5, and the upper layer of the filter tube 6 is filled with filter material 7. The gradation of the supporting material 5 in the filter tube 6 is consistent with the gradation of the upper supporting material 5 in the topmost supporting tube 4.

[0026] Furthermore, the lifting device includes a bracket 9, an electric hoist 10 and a cross hanger 11. The bracket 9 is connected to the side wall of the sand filter tank 1, the electric hoist 10 is installed on the bracket 9, the cross hanger 11 is connected to the output end of the electric hoist 10, and a hook 12 is provided at each end of the hanger of the cross hanger 11, and the hook 12 is adapted to the lifting hole 13.

[0027] Furthermore, the bracket 9 is composed of a supporting steel pipe 15 and a sleeve steel pipe 16. The sleeve steel pipe 16 is welded and fixed to the side wall of the sand filter tank 1, and the inner diameter of the sleeve steel pipe 16 is slightly larger than the outer diameter of the supporting steel pipe 15. The supporting steel pipe 15 is inserted into the sleeve steel pipe 16 and falls to the bottom. A rotatable disc is provided at the bottom of the supporting steel pipe 15, and the supporting steel pipe 15 can rotate freely in the sleeve steel pipe 16.

[0028] Through the above technical solution:

[0029] When in use, the supporting cylinder 4 and the filter cylinder 6 are made of stainless steel, with no holes in the side walls and a wire mesh 8 supporting device installed at the bottom. The pore size of the wire mesh 8 is slightly smaller than the supporting material 5 or the filter material 7 it contacts, which can reduce the influence of the wire mesh 8 on filtration and backwashing. Furthermore, by loading two layers of supporting materials 5 with different gradations in one supporting cylinder 4, the lower supporting material 5 is thinner and serves as the bottom layer. The gradation of the bottom layer is consistent with that of the upper supporting material 5 of the next supporting cylinder 4. Compared with the conventional sand filter device, each upper supporting cylinder 4 directly reduces the particle size of the supporting material 5, which can further increase the pore size of the wire mesh 8 and further reduce the backwashing resistance. The position of the supporting material 5 is fixed and will not be disturbed. Only the filter material 7 needs to be replaced regularly. During the replacement process, only Align the hook 12 and the lifting hole 13, start the electric hoist 10, use the lifting device above to lift the filter cartridge 6, refill the base supporting material 5 and filter material 7, and then lift it back to the sand filter tank 1, thereby saving the replacement cost and labor cost of the supporting material 5. After years of use, the supporting cylinder 4 can be lifted out. Because the gaps in the supporting material 5 are large, the supporting material 5 can be rinsed clean with a high-pressure water gun and then put back for reuse. There is no need to replace the supporting material, which greatly reduces the replacement workload. The cross hanger 11 used can balance the force and prevent deformation of the supporting cylinder 4 and the filter cartridge 6 during the lifting process. The bracket 9 is composed of a supporting steel pipe 15 and a sleeve steel pipe 16. The filter cartridge 6 and the supporting barrel 5 can be put to the ground by rotating the supporting steel pipe 15 during the lifting process.

[0030] For further information, see Figure 1 、 Figure 2 and Figure 7 As shown, the outer diameters of the supporting cylinder 4 and the filter cylinder 6 are both smaller than the inner diameter of the sand filter tank 1 , a V-shaped caulking soft ring 14 is installed on the top of the filter cylinder 6 , and the V-shaped caulking soft ring 14 fits the inner wall of the sand filter tank 1 .

[0031] Specifically, after each layer of the support cylinder 4 and the filter cylinder 6 is installed, the gap between the cylinder and the sand filter tank 1 is filled with filter material, which reduces the flow of water into the gap between the support cylinder 4 and the filter cylinder 6 and the inner wall of the sand filter tank 1. A V-shaped caulking soft ring 14 is installed on the top to further reduce the flow of water to the side, ensuring that water passes through the filter material 7.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sand filtration system that is easy to replace fillers, characterized in that: include: A sand filter tank (1) is connected to a filter pipe (2), a plurality of recoil filter heads (3) are installed at the bottom of the sand filter tank (1), a plurality of supporting cylinders (4) are arranged above the recoil filter heads (3), a plurality of supporting cylinders (4) are provided with supporting materials (5), a plurality of filter cylinders (6) are arranged above the supporting cylinders (4), a supporting material (5) and a filter material (7) are provided in the filter cylinders (6), a lifting hole (13) is provided on the supporting cylinder (4) and the filter cylinder (6), and a lifting device is installed above the sand filter tank (1).

2. A sand filtration system for easy filler replacement according to claim 1, characterized in that: A steel wire mesh (8) supporting device is installed at the bottom of the supporting cylinder (4) and the filter cylinder (6), and the pore size of the steel wire mesh (8) is smaller than the particle size of the supporting material (5) or the filter material (7) it contacts.

3. A sand filtration system for easy filler replacement according to claim 2, characterized in that: Each of the supporting tubes (4) is filled with two kinds of graded supporting materials (5), the particle size of the supporting materials (5) gradually decreases from bottom to top, and the upper layer of the supporting material (5) of the next supporting tube (4) is consistent in grade with the lower layer of the supporting material (5) of the previous supporting tube (4), the lower layer of the filter tube (6) is filled with a layer of supporting material (5), the upper layer of the filter tube (6) is filled with filter material (7), and the grade of the supporting material (5) in the filter tube (6) is consistent with the grade of the upper layer of the supporting material (5) in the uppermost supporting tube (4).

4. A sand filtration system for easy filler replacement according to claim 3, characterized in that: The outer diameters of the support cylinder (4) and the filter cylinder (6) are both smaller than the inner diameter of the sand filter tank (1); a V-shaped caulking soft ring (14) is installed on the top of the filter cylinder (6), and the V-shaped caulking soft ring (14) is in contact with the inner wall of the sand filter tank (1).

5. The sand filtration system for easy filler replacement according to claim 1, characterized in that: The hoisting device comprises a bracket (9), an electric hoist (10) and a cross hanger (11), wherein the bracket (9) is connected to the side wall of the sand filter tank (1), the electric hoist (10) is installed on the bracket (9), the cross hanger (11) is connected to the output end of the electric hoist (10), and a hook (12) is provided at each end of the hanger of the cross hanger (11), and the hook (12) is adapted to the hanging hole (13).

6. The sand filtration system for easy filler replacement according to claim 5, characterized in that: The bracket (9) is composed of a supporting steel pipe (15) and a sleeve steel pipe (16). The sleeve steel pipe (16) is welded and fixed on the side wall of the sand filter tank (1). The inner diameter of the sleeve steel pipe (16) is larger than the outer diameter of the supporting steel pipe (15). The supporting steel pipe (15) is inserted into the sleeve steel pipe (16) and falls to the bottom. A rotatable disc is provided at the bottom of the supporting steel pipe (15). The supporting steel pipe (15) can rotate freely in the sleeve steel pipe (16).

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