Pollution discharge mechanism for material filtering system for water treatment

Abstract

The utility model discloses a sewage discharging mechanism for a material filtering system for water treatment, which comprises a backwashing water collecting tank, a sewage discharging pipe, a sewage discharging pipe, a sewage discharging pipe, a sewage discharging pipe, a sewage discharging pipe, a sewage discharging pipe and a sewage discharging pipe, wherein the bottom of the backwashing water collecting tank is outwards connected with a corresponding sludge discharging pipe; the hollow pressing block is mounted in the backwashing water collecting tank in a lifting manner; the steel ball discharging hopper is fixedly mounted at the top of the backwashing water collecting tank; and the steel ball discharge pipe is arranged at the bottom of the backwashing water collecting tank. According to the utility model, the solid content of the reflux supernatant is effectively and obviously reduced, so that the adverse effect on the operation of the system is reduced, and the water content of the discharged bottom mud can be effectively reduced, so that the utilization rate of the return water is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of a sewage discharge mechanism for pure water preparation, in particular to a sewage discharge mechanism for a material filtering system for water treatment. Background Art

[0002] The conductivity of pure water is stable at 5us / cm. Pure water production generally adopts a primary RO process to meet the design requirements. The existing physical filtration system for pure water preparation and water treatment generally includes a quartz sand filter, an activated carbon filter, and at least one primary RO membrane filter.

[0003] In order to ensure the normal operation of the quartz sand filter and the activated carbon filter, it is necessary to backwash the quartz sand filter and the activated carbon filter regularly. At present, the backwash water generated by the backwash of the quartz sand filter and the activated carbon filter is mainly collected through the corresponding cone-bottom water tank. After the backwash water is naturally settled in the cone-bottom water tank, the sludge is discharged to the sewage treatment station, and the supernatant is returned to the system for reuse, thereby improving the utilization rate of the water source. However, since the water content of the discharged sludge is relatively high, the return water utilization rate is relatively low; and the supernatant has a high solid content, which makes it easy for the sludge to flow back into the system again, which is very troublesome.

[0004] Therefore, the research purpose of the present utility model is to design a sewage discharge mechanism for a water treatment material filtration system that can effectively and significantly reduce the solid content of the reflux supernatant, thereby reducing the adverse effects on the system operation, and can effectively reduce the water content of the discharged sludge, thereby effectively improving the utilization rate of the return water. Summary of the invention

[0005] In view of the technical problems existing in the above-mentioned prior art, the utility model provides a sewage discharge mechanism for a material filtering system for water treatment, which can effectively solve the technical problems existing in the above-mentioned prior art.

[0006] The technical solution of the utility model is:

[0007] A sewage discharge mechanism for a material filtering system for water treatment, comprising:

[0008] A backwash water collection tank, the bottom side of which is connected to the backwash drainage pipes of the corresponding quartz sand filter and the activated carbon filter, the bottom of the backwash water collection tank is connected to the corresponding sludge discharge pipe, and the upper part of the backwash water collection tank is downwardly provided with a supernatant drainage pipe, and the supernatant drainage pipe pump is connected to the upper part of the quartz sand filter;

[0009] A hollow pressure block can be lifted and installed in the backwash water collection tank, a fixed pipe is fixedly installed in the middle of the hollow pressure block, a plurality of liquid-permeable tubes filled with filter cotton layers are installed longitudinally through the hollow pressure block, a transverse baffle is fixedly connected to the middle of the fixed tube, and the upper and lower ends of the fixed tube are respectively movably connected to corresponding push rods through corresponding high-rigidity springs, the upper and lower ends of the hollow pressure block are respectively provided with corresponding openings at positions corresponding to the fixed tube, and the ends of the push rods are respectively fixedly connected with closing plates for closing the openings;

[0010] A steel ball hopper is fixedly installed on the top of the backwash water collection tank, a discharge port of the steel ball hopper is downwardly arranged and fixedly installed with a corresponding electromagnetic valve, and a plurality of corresponding first electromagnets are fixedly installed on the top of the backwash water collection tank, when the first electromagnet forms an adsorption connection with the top of the hollow pressing block, the discharge port of the steel ball hopper pushes the closing plate located at the upper end of the hollow pressing block, the electromagnetic valve is opened, and the steel balls in the steel ball hopper are filled into the hollow area of ​​the hollow pressing block;

[0011] A steel ball discharge pipe is arranged at the bottom of the backwash water collection tank. A closing plate for closing the steel ball discharge pipe is arranged on the upper part of the steel ball discharge pipe. The closing plate is driven by a corresponding driving hydraulic cylinder. A plurality of corresponding second electromagnets are fixedly installed at the bottom of the backwash water collection tank. When the second electromagnet forms an adsorption connection with the bottom of the hollow pressure block, the piston rod of the driving hydraulic cylinder extends to drive the closing plate to push the closing plate at the lower end of the hollow pressure block. The steel balls in the hollow area of ​​the hollow pressure block are discharged and collected along the steel ball discharge pipe.

[0012] The sludge discharge pipe is connected to an external sludge collection container through a corresponding sludge discharge valve, the upper part of the external sludge collection container is openably and closably provided with a corresponding cover plate, and the external sludge collection container is connected to a corresponding vacuum pump through a corresponding vacuum pipe pump.

[0013] Corresponding guide ridges are longitudinally arranged on both sides of the backwash water collection tank, and guide grooves matching the guide ridges are arranged on both sides of the hollow pressing block.

[0014] The top of the backwash water collection tank is fixedly connected downwardly with a plurality of tightening rods corresponding to the liquid permeable tube, the bottom of the liquid permeable tube is fixedly connected with a corresponding fixed filter plate, the fixed filter plate is fixedly connected upwardly with a corresponding coil spring, the top of the coil spring is fixedly connected with a movable filter plate that can move up and down along the liquid permeable tube, and the filter cotton layer is arranged between the fixed filter plate and the movable filter plate.

[0015] The bottom surface of the hollow pressing block is set to be spherical, and the bottom of the backwash water collection tank is set to be a spherical shape that matches the hollow pressing block.

[0016] Corresponding connecting rods are fixedly connected upwardly to both sides of the fixed tube, and the connecting rods are fixedly connected to the top of the hollow pressing block.

[0017] The outer sides of the closing plates are respectively fixedly bonded with corresponding sealing gaskets.

[0018] A distance measuring sensor for detecting the position of the hollow pressing block is arranged on the top of the backwash water collecting tank.

[0019] The supernatant liquid extraction and drainage pipe is a metal hose, and the liquid inlet end of the supernatant liquid extraction and drainage pipe is covered and connected with a corresponding filter.

[0020] Advantages of the utility model:

[0021] 1) The utility model adds a hollow pressing block on the basis of the existing backwash water collecting tank. During use: first, the backwash water enters the backwash water collecting tank. Since the hollow pressing block has buoyancy, it will not cause excessive resistance to the entry of the backwash water; when the backwash water enters and lifts the hollow pressing block to the bottom of the first electromagnet, the first electromagnet is energized to form an adsorption connection with the top of the hollow pressing block, so that the discharge port of the steel ball hopper pushes the closing plate at the upper end of the hollow pressing block, and then the solenoid valve is opened, so that the steel balls in the steel ball hopper are filled into the hollow area of ​​the hollow pressing block, so as to greatly increase the gravity of the hollow pressing block; after the gravity is increased, the hollow pressing block gradually sinks, and the supernatant is filtered through the filter cotton layer and then circulated to the The upper side of the hollow pressing block can effectively and significantly reduce the water content of the sludge deposited on the bottom side under the compression of the hollow pressing block after the gravity increases, and can effectively reduce the solid content of the supernatant under the filtering action of the filter cotton layer; after a period of time, the supernatant is pumped to the upper part of the quartz sand filter through the supernatant suction pipe for reuse, and then the sludge is discharged through the sludge discharge pipe; after the sludge is discharged, the hollow pressing block descends to the bottom of the backwash water collection tank, and the second electromagnet forms an adsorption connection with the bottom of the hollow pressing block, and then drives the piston rod of the hydraulic cylinder to extend, so as to drive the closing plate to push the closing plate at the lower end of the hollow pressing block, and the steel balls in the hollow area of ​​the hollow pressing block are discharged and collected along the steel ball discharge pipe through the opening of the hollow pressing block.

[0022] This can not only effectively and significantly reduce the solid content of the reflux supernatant to reduce the adverse effects on system operation, but also effectively reduce the water content of the discharged sludge, thereby effectively improving the return water utilization rate.

[0023] 2) The utility model uses a high-rigidity spring to limit the push rod, thereby effectively ensuring the closing effect of the closing plate on the opening of the hollow pressure block, and then through the intervention of the first electromagnet and the second electromagnet to ensure that when the closing plate is pushed, the hollow pressure block can have sufficient stability, thereby effectively realizing the pushing and compression of the high-rigidity spring, thereby ensuring the practical effect of the utility model.

[0024] 3) A tightening rod corresponding to the liquid permeable tube is fixed downwardly on the top of the backwash water collection tank of the utility model. When the first electromagnet forms adsorption on the hollow pressure block, the tightening rod presses down on the movable filter plate, thereby squeezing the spiral spring and the filter cotton layer. When the first electromagnet disconnects the adsorption of the hollow pressure block, the spiral spring and the filter cotton layer are reset, thereby effectively compressing and loosening the filter cotton layer, so that part of the sludge attached to the filter cotton layer can leave the filter cotton layer, thereby improving the filtering effect and service life of the filter cotton layer, so as to further ensure the practical effect of the utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of the utility model.

[0026] Figure 2 It is a structural schematic diagram of a hollow briquette.

[0027] Figure 3 This is a usage state diagram of the utility model.

[0028] In the accompanying drawings: backwash water collection tank 1, quartz sand filter 2, activated carbon filter 3, backwash drain pipe 4, sludge discharge pipe 5, supernatant extraction pipe 6, hollow pressure block 7, fixed pipe 8, filter cotton layer 9, permeable pipe 10, transverse baffle 11, high stiffness spring 12, push rod 13, closing plate 14, steel ball hopper 15, solenoid valve 16, first electromagnet 17, steel ball discharge pipe 18, closing plate 19, driving hydraulic cylinder 20, second electromagnet 21, sludge discharge valve 22, external sludge collection container 23, cover plate 24, vacuum pipe 25, vacuum pump 26, guide convex edge 27, tightening rod 28, fixed filter plate 29, spiral spring 30, movable filter plate 31, connecting rod 32, sealing gasket 33. DETAILED DESCRIPTION

[0029] In order to facilitate understanding by those skilled in the art, the structure of the present invention is further described in detail with reference to the accompanying drawings:

[0030] refer to Figure 1-3 , a sewage discharge mechanism for a material filtering system for water treatment, comprising:

[0031] The backwash water collection tank 1 has its bottom side connected to the backwash drainage pipe 4 of the corresponding quartz sand filter 2 and the activated carbon filter 3. The bottom of the backwash water collection tank 1 is connected to the corresponding sludge discharge pipe 5. The upper part of the backwash water collection tank 1 is downwardly provided with a supernatant drainage pipe 6, and the supernatant drainage pipe 6 is pumped to the upper part of the quartz sand filter 2;

[0032] A hollow pressing block 7 can be lifted and installed in the backwash water collecting tank 1. A fixed pipe 8 is fixedly installed in the middle of the hollow pressing block 7. A plurality of liquid-permeable pipes 10 filled with filter cotton layers 9 are installed longitudinally through the hollow pressing block 7. A transverse baffle 11 is fixedly connected to the middle of the fixed pipe 8. The upper and lower ends of the fixed pipe 8 are respectively movably connected to corresponding push rods 13 through corresponding high-rigidity springs 12. The upper and lower ends of the hollow pressing block 7 are respectively provided with corresponding openings at positions corresponding to the fixed pipe 8. The ends of the push rods 13 are respectively fixedly connected with closing plates 14 for closing the openings.

[0033] A steel ball lower hopper 15 is fixedly installed on the top of the backwash water collecting tank 1. The lower opening of the steel ball lower hopper 15 is downwardly arranged and fixedly installed with a corresponding electromagnetic valve 16. A plurality of corresponding first electromagnets 17 are fixedly installed on the top of the backwash water collecting tank 1. When the first electromagnet 17 forms an adsorption connection with the top of the hollow pressing block 7, the lower opening of the steel ball lower hopper 15 pushes the closing plate 14 located at the upper end of the hollow pressing block 7. The electromagnetic valve 16 is opened, and the steel balls in the steel ball lower hopper 15 are filled into the hollow area of ​​the hollow pressing block 7.

[0034] A steel ball discharge pipe 18 is arranged at the bottom of the backwash water collection tank 1. A closing plate 19 for closing the steel ball discharge pipe 18 is arranged on the upper part of the steel ball discharge pipe 18. The closing plate 19 is driven by a corresponding driving hydraulic cylinder 20. A plurality of corresponding second electromagnets 21 are fixedly installed at the bottom of the backwash water collection tank 1. When the second electromagnet 21 forms an adsorption connection with the bottom of the hollow pressure block 7, the piston rod of the driving hydraulic cylinder 20 extends to drive the closing plate 19 to push the closing plate 14 located at the lower end of the hollow pressure block 7, and the steel balls located in the hollow area of ​​the hollow pressure block 7 are discharged and collected along the steel ball discharge pipe 18.

[0035] During use: first, the backwash water enters the backwash water collection tank 1. Since the hollow pressing block 7 has buoyancy, it will not cause excessive resistance to the entry of the backwash water; when the backwash water enters and lifts the hollow pressing block 7 to the position below the first electromagnet 17, the first electromagnet 17 is energized to form an adsorption connection with the top of the hollow pressing block 7, so that the discharge port of the steel ball discharge hopper 15 pushes the closing plate 14 located at the upper end of the hollow pressing block 7, and then the solenoid valve 16 is opened, so that the steel balls in the steel ball discharge hopper 15 are filled into the hollow area of ​​the hollow pressing block 7, so as to greatly increase the gravity of the hollow pressing block 7; after the gravity increases, the hollow pressing block 7 gradually sinks, and the supernatant is filtered by the filter cotton layer 9 and then circulated to the upper side of the hollow pressing block 7 through the liquid permeable tube 10. Under the compression of the hollow pressing block 7, the water content of the sludge deposited on the bottom side can be effectively and significantly reduced, and under the filtering action of the filter cotton layer 9, the solid content of the supernatant can be effectively reduced; after a period of time, the supernatant is pumped to the upper part of the quartz sand filter 2 through the supernatant pumping pipe 6 for reuse, and then the sludge is discharged through the sludge discharge pipe 5; after the sludge is discharged, the hollow pressing block 7 descends to the bottom of the backwash water collecting tank 1, and the second electromagnet 21 forms an adsorption connection with the bottom of the hollow pressing block 7, and then drives the piston rod of the hydraulic cylinder 20 to extend, so as to drive the closing plate 19 to push the closing plate 14 located at the lower end of the hollow pressing block, and the steel balls located in the hollow area of ​​the hollow pressing block 7 are discharged and collected along the steel ball discharge pipe 18 through the opening of the hollow pressing block 7. This can not only effectively and significantly reduce the solid content of the reflux supernatant to reduce the adverse effects on system operation, but also effectively reduce the water content of the discharged sludge, thereby effectively improving the return water utilization rate.

[0036] The utility model uses a high-rigidity spring 12 to limit the push rod 13, thereby effectively ensuring the closing effect of the closing plate 14 on the opening of the hollow pressure block 7, and then through the intervention of the first electromagnet 17 and the second electromagnet 21, it is ensured that when the closing plate 14 is pushed, the hollow pressure block 7 can have sufficient stability, thereby effectively realizing the pushing and compression of the high-rigidity spring 12, so as to ensure the practical effect of the utility model.

[0037] The sludge discharge pipe 5 is connected to an external sludge collection container 23 through a corresponding sludge discharge valve 22, and a corresponding cover plate 24 is installed on the upper part of the external sludge collection container 23 so as to be openable and closable, and the external sludge collection container 23 is connected to a corresponding vacuum pump 26 through a corresponding vacuum pipe 25 pump.

[0038] Corresponding guide ridges 27 are longitudinally arranged on both sides of the backwash water collection tank 1, and guide grooves matching the guide ridges 27 are arranged on both sides of the hollow pressure block 7. A plurality of tightening rods 28 corresponding to the liquid permeable tube 10 are fixedly connected downwardly to the top of the backwash water collection tank 1, a corresponding fixed filter plate 29 is fixedly connected to the bottom of the liquid permeable tube 10, a corresponding spiral spring 30 is fixedly connected upwardly to the fixed filter plate 29, a movable filter plate 31 that can move up and down along the liquid permeable tube 10 is fixedly connected to the top of the spiral spring 30, and the filter cotton layer 9 is arranged between the fixed filter plate 29 and the movable filter plate 31.

[0039] When the first electromagnet 17 forms adsorption on the hollow pressure block 7, the tightening rod 28 presses down on the movable filter plate 31, thereby squeezing the coil spring 30 and the filter cotton layer 9. When the first electromagnet 17 disconnects the adsorption on the hollow pressure block 7, the coil spring 30 and the filter cotton layer 9 are reset, thereby effectively compressing and loosening the filter cotton layer 9, so that part of the sludge attached to the filter cotton layer 9 can leave the filter cotton layer 9, thereby improving the filtering effect and service life of the filter cotton layer 9, so as to further ensure the practical effect of the utility model.

[0040] The bottom surface of the hollow pressing block 7 is spherical, and the bottom of the backwash water collecting tank 1 is spherical to match the hollow pressing block 7. The two sides of the fixed pipe 8 are upwardly fixed with corresponding connecting rods 32, and the connecting rods 32 are fixed to the top of the hollow pressing block 7. The outer sides of the closing plate 14 are respectively fixed with corresponding sealing gaskets 33.

[0041] A distance sensor for detecting the position of the hollow pressing block 7 is arranged on the top of the backwash water collecting tank 1. The supernatant liquid extraction and discharge pipe 6 is a metal hose, and the liquid inlet end of the supernatant liquid extraction and discharge pipe 6 is covered and connected with a corresponding filter screen.

[0042] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A sewage discharge mechanism for a material filtering system for water treatment, characterized in that: include: A backwash water collection tank (1), the bottom side of which is connected to the backwash drainage pipe (4) of the corresponding quartz sand filter (2) and the activated carbon filter (3); the bottom of the backwash water collection tank (1) is connected to the corresponding sludge discharge pipe (5) outwardly; a supernatant liquid extraction pipe (6) is arranged downwardly on the upper part of the backwash water collection tank (1); the supernatant liquid extraction pipe (6) is pumped to the upper part of the quartz sand filter (2); A hollow pressing block (7) is installed in the backwash water collection tank (1) in a liftable manner, a fixed tube (8) is fixedly installed in the middle of the hollow pressing block (7), a plurality of liquid permeable tubes (10) filled with filter cotton layers (9) are installed longitudinally through the hollow pressing block (7), a transverse baffle (11) is fixedly connected to the middle of the fixed tube (8), and the upper and lower ends of the fixed tube (8) are respectively movably connected to corresponding push rods (13) through corresponding high-rigidity springs (12), the upper and lower ends of the hollow pressing block (7) are respectively provided with corresponding openings at positions corresponding to the fixed tube (8), and the ends of the push rods (13) are respectively fixedly connected to closing plates (14) for closing the openings; A steel ball feed hopper (15) is fixedly mounted on the top of the backwash water collection tank (1); a feed opening of the steel ball feed hopper (15) is arranged downward and a corresponding electromagnetic valve (16) is fixedly mounted thereon; a plurality of corresponding first electromagnets (17) are fixedly mounted on the top of the backwash water collection tank (1); when the first electromagnets (17) form an adsorption connection with the top of the hollow pressing block (7), the feed opening of the steel ball feed hopper (15) pushes against the closing plate (14) located at the upper end of the hollow pressing block (7); the electromagnetic valve (16) is opened, and the steel balls in the steel ball feed hopper (15) are filled into the hollow area of ​​the hollow pressing block (7); A steel ball discharge pipe (18) is arranged at the bottom of the backwash water collection tank (1). A closing plate (19) for closing the steel ball discharge pipe (18) is arranged at the upper part of the steel ball discharge pipe (18). The closing plate (19) is driven by a corresponding driving hydraulic cylinder (20). A plurality of corresponding second electromagnets (21) are fixedly mounted at the bottom of the backwash water collection tank (1). When the second electromagnets (21) form an adsorption connection with the bottom of the hollow pressing block (7), the piston rod of the driving hydraulic cylinder (20) extends to drive the closing plate (19) to push the closing plate (14) located at the lower end of the hollow pressing block (7). The steel balls located in the hollow area of ​​the hollow pressing block (7) are discharged and collected along the steel ball discharge pipe (18).

2. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: The sludge discharge pipe (5) is connected to an external sludge collection container (23) via a corresponding sludge discharge valve (22); a corresponding cover plate (24) is installed on the upper part of the external sludge collection container (23) in an openable and closable manner; and the external sludge collection container (23) is connected to a corresponding vacuum pump (26) via a corresponding vacuum pipe (25) pump.

3. The sewage discharge mechanism for a water treatment material filtering system according to claim 1, characterized in that: Corresponding guide ridges (27) are longitudinally arranged on both sides of the backwash water collection tank (1), and guide grooves matching the guide ridges (27) are arranged on both sides of the hollow pressure block (7).

4. The sewage discharge mechanism for a material filtering system for water treatment according to claim 3, characterized in that: A plurality of tightening rods (28) corresponding to the liquid permeable tube (10) are fixedly connected downwardly to the top of the backwash water collection tank (1); a corresponding fixed filter plate (29) is fixedly connected to the bottom of the liquid permeable tube (10); a corresponding coil spring (30) is fixedly connected upwardly to the fixed filter plate (29); a movable filter plate (31) movable up and down along the liquid permeable tube (10) is fixedly connected to the top of the coil spring (30); and the filter cotton layer (9) is arranged between the fixed filter plate (29) and the movable filter plate (31).

5. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: The bottom surface of the hollow pressing block (7) is arranged in a spherical shape, and the bottom of the backwash water collection tank (1) is arranged in a spherical shape that matches the hollow pressing block (7).

6. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: Corresponding connecting rods (32) are fixedly connected upwardly to both sides of the fixed tube (8), and the connecting rods (32) are fixedly connected to the top of the hollow pressing block (7).

7. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: Corresponding sealing gaskets (33) are fixedly bonded to the outer sides of the closing plates (14).

8. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: A distance measuring sensor for detecting the position of the hollow pressing block (7) is arranged on the top of the backwash water collection tank (1).

9. The sewage discharge mechanism for a material filtering system for water treatment according to claim 1, characterized in that: The supernatant liquid extraction pipe (6) is a metal hose, and the liquid inlet end of the supernatant liquid extraction pipe (6) is coated and connected with a corresponding filter screen.

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