Solid-liquid separator with same-direction water inlet and outlet structure

Abstract

The utility model relates to a solid -liquid second separation machine with same direction water inlet and outlet structure has solved the technical problem that the water inlet and outlet direction of existing solid -liquid second separation machine is not identical, and it includes frame and annular filter belt, the annular filter belt is equipped with upper layer belt body and lower layer belt body, the bottom of upper layer belt body is equipped with clean water collection box, the clean water collection box is installed in frame middle abdomen, the lower layer belt body passes through the bottom of clean water collection box, the side of clean water collection box is equipped with drain, be equipped with buffer tank on the frame, be equipped with sewage input on the buffer tank, the drain of clean water collection box side is connected with U type water guide groove, the lower layer belt body bottom is equipped with L type water guide groove, U type water guide groove with L type water guide groove intercommunication, L type water guide groove sets up in sewage input lower end.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a solid-liquid separator with a co-directional inlet and outlet water structure. Background Technology

[0002] A wastewater treatment device is described in the following patent applications: Invention Patent No. ZL201610059680.3; Invention Patent No. ZL201610941377.6; and Design Patent No. ZL 202230246579.5. The patents reveal that the device includes at least a filter belt capable of carrying wastewater, a frame, and a ring-shaped filter belt with filter belt rollers at both ends mounted on the frame. The ring-shaped filter belt can rotate via the drive of the filter belt rollers. The upper layer of the ring-shaped filter belt is inclined, with its angle to the horizontal controlled between 0-45°, serving as the wastewater bearing surface. A clean water collection tank is located at the bottom of the upper filter belt and is installed in the middle of the frame. The lower layer of the ring-shaped filter belt passes through the bottom of the clean water collection tank. Based on the above features and the appearance patent, it can be determined that the original technical structure is that the filtered wastewater is collected through a water purification collection box and then discharged from the drain outlet on the side of the water purification collection box.

[0003] The water inlet is located at the cross-section of the equipment, which requires drainage pipes to be installed between two or more units. This increases the distance between the equipment, enlarges the floor space, and the water outlet pipes occupy maintenance space, making it inconvenient for maintenance personnel to pass through and hindering equipment repair and maintenance. Summary of the Invention

[0004] To address the technical problem of inconsistent inlet and outlet directions in existing solid-liquid separators, this invention provides a solid-liquid separator with a unidirectional inlet and outlet structure that facilitates equipment maintenance.

[0005] This utility model provides a solid-liquid separator with a unidirectional water inlet and outlet structure, which includes a frame and an annular filter belt. The annular filter belt has an upper belt body and a lower belt body. The bottom of the upper belt body is provided with a clean water collection tank, which is installed in the middle of the frame. The lower belt body passes through the bottom of the clean water collection tank. The clean water collection tank has a drain outlet on its side. The frame is provided with a buffer tank, which has a sewage inlet. The drain outlet on the side of the clean water collection tank is connected to a U-shaped water guide channel. The bottom of the lower belt body is provided with an L-shaped water guide channel. The U-shaped water guide channel communicates with the L-shaped water guide channel. The L-shaped water guide channel is located at the lower end of the sewage inlet.

[0006] Preferably, the U-shaped water guide channel is provided with a U-shaped connecting flange and a U-shaped cavity. The U-shaped cavity has a rectangular structure. One side of the U-shaped cavity is welded and fixed to the U-shaped connecting flange. The U-shaped connecting flange consists of an upper rectangular frame flange and a lower rectangular frame flange that share a long side.

[0007] Preferably, the drain outlet of the water collection tank is a rectangular outlet, and the drain outlet of the water collection tank is connected to the upper rectangular frame flange of the L-shaped connecting flange.

[0008] Preferably, the L-shaped water guide channel is provided with two rectangular connecting flanges and an L-shaped cavity. The size of the rectangular connecting flanges is the same as the size of the lower rectangular frame flange of the U-shaped water guide channel. One end of the rectangular connecting flange of the L-shaped water guide channel is fixed to both sides of the wall panel with bolts to the lower rectangular frame flange.

[0009] Preferably, the outlet of the L-shaped water guide channel is also connected to a top-to-bottom joint.

[0010] Preferably, the sewage inlet is provided with an inlet wave impeller, and the wave impeller has blades evenly distributed around the circumference of the shaft core.

[0011] Preferably, the diameter of the wave impeller is 2 / 3 of the height of the sewage inlet.

[0012] Preferably, the L-shaped water guide channel is provided with an outlet wave impeller, which is connected to the inlet wave impeller through a transmission device, and the outlet wave impeller and the inlet wave impeller rotate in opposite directions.

[0013] The beneficial effects of this utility model are:

[0014] Compared with existing technologies, this utility model realizes a structural form for the solid-liquid separator that changes from rear-inlet to rear-outlet design, achieving inlet and outlet from the same end face. This method eliminates drainage pipes between devices, reducing the spacing between the solid-liquid separator units; simultaneously, the absence of drainage pipes facilitates equipment maintenance. Changing the drain outlet from a rectangle with an inscribed circle to a rectangular opening increases the drainage capacity to some extent, creating favorable conditions for the equipment's processing performance.

[0015] This utility model also includes a drainage structure. When the inflow of water increases, the kinetic and potential energy of the inflowing water is converted into the kinetic energy of the inflow wave impeller, thus buffering the inflow of water into the sewage inlet of the buffer tank. The kinetic energy of the inflow wave impeller is transferred to the outlet position through the transmission structure, accelerating the discharge of clean water. At the same time, the inflow wave impeller and the outlet wave impeller are respectively installed on the upper side of the sewage inlet and the outlet. When the inflow is small, the liquid level is low and will not touch the wave impeller. Only when the inflow is large and the liquid level is high will it impact the wave impeller and drive it to rotate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the utility model with water inlet at the top and water outlet at the bottom;

[0018] Figure 3 This is a schematic diagram of the water outlet structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the U-shaped water guide channel of this utility model;

[0020] Figure 5 This is a schematic diagram of the L-shaped water guide channel of this utility model;

[0021] Figure 6 This is a schematic diagram of the overall installation position of the drainage structure of this utility model;

[0022] Figure 7 This is a schematic diagram of the drainage structure of this utility model.

[0023] Explanation of symbols in the attached drawings:

[0024] 10. Annular filter belt; 20. Frame; 30. Clean water collection tank; 2. Sewage inlet; 3. U-shaped water guide channel; 4. L-shaped water guide channel; 5. L-shaped connecting flange; 6. U-shaped cavity; 7. Rectangular connecting flange; 8. L-shaped cavity; 9. Wall panel; 21. Inlet water impeller; 22. Outlet water impeller; 23. Driving pulley; 24. Belt; 25. Driven pulley; 26. Gear set. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and embodiments, so that those skilled in the art to which the present invention pertains can easily implement the present invention.

[0026] Example 1: This utility model includes a frame 20, an annular filter belt 10 disposed at the top of the frame, a surge suction device at the bottom of the upper layer of the annular filter belt 10, a clean water collection tank 30 in the belly of the frame, and a filter belt cleaning device. The surge suction device includes several freely rotatable rollers disposed at the bottom of the upper layer of the filter belt. The upper layer of the filter belt and the rollers form tangential contact. Both ends of the rollers are supported on the side walls of the frame by bearings. One end of the roller extends out of the side wall and is provided with a drive wheel at the extended end. A roller drive wheel is provided on the side of the frame. The drive motor drives several rollers via a synchronous belt; the surge suction device also includes a negative pressure suction trough located at the bottom of the upper belt, with at least one negative pressure suction trough. The negative pressure suction trough includes a trough body that spans the width of the filter belt, end caps at both ends of the trough body, and a top plate at the top of the trough body. A suction port is located on the top plate along the width of the upper belt body, and the top plate is in contact with the bottom surface of the upper belt body. A drain port is located on the end cap at one end of the trough body, and the drain port is connected to the negative pressure suction device.

[0027] The filter belt cleaning device includes a vacuum slag suction box and a clean water spray pipe. The vacuum slag suction box is located at the rotation point of the filter belt. The vacuum slag suction box includes a box body, which is set along the width direction of the filter belt. The top of the box body is provided with a ridge cover with a triangular cross-section. One side of the ridge cover is in contact with the surface of the filter belt, and a slag suction port is provided on the ridge cover along the width direction of the filter belt. A slag outlet is provided on the box body, and the slag outlet is connected to a negative pressure suction device. The clean water spray pipe is located behind the vacuum slag suction box in the direction of filter belt travel, and the clean water spray pipe is located above the lower layer of the filter belt.

[0028] The negative pressure suction device includes a negative pressure fan and a hydrocyclone. The negative pressure fan and the hydrocyclone are connected by a pipeline. The suction port of the hydrocyclone is equipped with a material conveying pipe. The drain port on the negative pressure suction tank and the slag outlet on the vacuum slag suction box are connected to the material conveying pipe. The bottom of the hydrocyclone is equipped with a discharge port.

[0029] A water distributor is provided on the surface of the upper belt. The water distributor is suspended on the frame. The side wall of the water distributor is in contact with the surface of the filter belt. The water distributor also includes a buffer box, which is fixed on the frame. An overflow pipe is provided on the top of the side wall of the buffer box. The overflow pipe is connected to the water inlet of the water distributor. A sewage inlet 2 is provided on the buffer box.

[0030] A clean water collection box 30 is provided at the bottom of the upper belt. The clean water collection box 30 is installed in the middle of the frame, and the lower belt of the annular filter belt passes through the bottom of the clean water collection box 30.

[0031] like Figure 1-7As shown, a water outlet structure is added to the traditional solid-liquid separator, including a U-shaped water guide trough 3 and an L-shaped water guide trough 4. The U-shaped water guide trough 3 is connected to the clean water collection tank 30. One end of the L-shaped water guide trough 4 is connected to the U-shaped water guide trough 3, and the other end has a reserved flange interface for connection to a drainage pipe or water channel. The U-shaped water guide trough 3 changes the side water outlet structure of the original technical solution, so that the water exiting from the side of the equipment flows back to the bottom of the annular filter belt 10 and enters the L-shaped water guide trough 4. The outlet flange of the L-shaped water guide trough 4 is located directly below the square water inlet of the equipment, that is, the L-shaped water guide trough 4 can discharge the received sewage directly below the sewage inlet 2.

[0032] The U-shaped water guide channel 3 is equipped with a U-shaped connecting flange 5 and a U-shaped cavity 6. The U-shaped connecting flange 5 is a rectangular frame made of steel plate with a shared long side. The U-shaped cavity 6 is a rectangular structure, with one face aligned with the inner length and width of the U-shaped connecting flange 5 and welded securely. This utility model changes the circular outlet of the original water collection tank 30 on the solid-liquid separator to a rectangular outlet. Without changing the outer contour, the cross-sectional area of ​​the outlet is increased, resulting in a larger flow rate. The U-shaped connecting flange 5 adopts a top-inlet, bottom-outlet design. After the sewage enters from the top, it flows directly down and exits from the bottom, reducing hydraulic loss.

[0033] The L-shaped water guide channel 4 is equipped with two rectangular connecting flanges 7 and an L-shaped cavity 8. The rectangular connecting flanges 7 are the same size as the lower flange of the U-shaped water guide channel 3. A rectangular connecting flange 7 is welded to each end of the L-shaped cavity 8. One end of the rectangular connecting flange 7 of the L-shaped water guide channel 4 is connected and fixed to the wall plate 9 by bolts to the lower opening of the L-shaped connecting flange 5. The other end extends out of the equipment frame below the square water inlet of the equipment.

[0034] The L-shaped water guide channel 4 is located below the square water inlet. The rectangular connecting flange 7 can be configured with a top-round-to-bottom joint according to application needs. The rectangular end flange of the top-round-to-bottom joint is the same size as the rectangular connecting flange 7. The other end has a round head with a reserved standard flange interface for connection to the application example.

[0035] Example 2: Figure 6-7 As shown, this embodiment adds a drainage structure to Embodiment 1. The drainage structure includes a water inlet impeller 21 installed inside the sewage inlet of the buffer tank. The impeller is horizontally installed inside the sewage inlet, and its diameter is 1 / 2 to 2 / 3 of the height of the sewage inlet. The height of the impeller diameter is designed so that when the inflow is small, the liquid level is low and the impeller will not be touched. Only when the inflow is large and the liquid level rises will the impeller be impacted. Under the impact of the kinetic energy of the incoming water, the impeller blades are pushed to rotate.

[0036] The impeller has blades evenly distributed around the circumference of the shaft core. The blades are welded to the shaft core or fixed by bolts. One end of the shaft core extends to the outside of the sewage inlet of the buffer tank, and an active pulley 23 is installed at the shaft head.

[0037] A similarly structured outlet wave impeller 22 is installed inside the L-shaped water guide channel, with the same installation method and diameter as the inlet wave impeller 21. The difference is that one end of the shaft of the outlet wave impeller 22 extends out of the outside of the L-shaped water guide channel, and this side is the same as the drive pulley 23 on the inlet wave impeller 21. A gear set 26 is installed on the shaft end.

[0038] A drive shaft is provided between the inlet wave impeller 21 and the outlet wave impeller 22. A driven pulley 25 is mounted on the drive shaft, and the driven pulley 25 is connected to the gear set 26 through the drive shaft.

[0039] The driving pulley 23 and the driven pulley 25 are equipped with a transmission belt 24. The belt 24 can be a regular V-belt or a synchronous belt. Alternatively, the pulleys can be replaced with sprockets and matched with chain drive.

[0040] The function of the drainage structure: An inlet water impeller 21 is installed inside the sewage inlet of the buffer tank. When the sewage input increases, the inlet water impeller 21 buffers the flow, converting the kinetic and potential energy of the incoming water into the kinetic energy of the impeller, thus driving the inlet water impeller 21 to rotate and achieving the function of buffering the water flow. Simultaneously, the kinetic energy of the rotating inlet water impeller 21 is transmitted to the drive shaft through the drive pulley 23 and belt pulley 2. The drive shaft rotates in the same direction as the inlet water impeller 21. The drive shaft further transmits the kinetic energy to the outlet water impeller 22 through meshing gears. The outlet water impeller 22 rotates in the opposite direction to the inlet water impeller 21. The outlet water impeller 22 in the L-shaped guide channel pushes water outward, accelerating the drainage speed of the L-shaped guide channel and thus the overall drainage speed of the equipment.

[0041] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the scope of the claims of the present invention should be within the protection scope of the present invention.

Claims

1. A solid-liquid separator with a unidirectional water inlet and outlet structure, comprising a frame and an annular filter belt, the annular filter belt having an upper belt body and a lower belt body, a purified water collection tank being provided at the bottom of the upper belt body, the purified water collection tank being installed in the middle of the frame, the lower belt body passing through the bottom of the purified water collection tank, a drain outlet being provided on the side of the purified water collection tank, a buffer tank being provided on the frame, and a wastewater inlet being provided on the buffer tank, characterized in that... The drain outlet on the side of the water purification collection tank is connected to a U-shaped water guide channel, and the bottom of the lower belt is provided with an L-shaped water guide channel. The U-shaped water guide channel is connected to the L-shaped water guide channel, and the L-shaped water guide channel is located at the lower end of the sewage inlet.

2. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 1, characterized in that, The U-shaped water guide channel is provided with a U-shaped connecting flange and a U-shaped cavity. The U-shaped cavity has a rectangular structure. One side of the U-shaped cavity is welded and fixed to the U-shaped connecting flange. The U-shaped connecting flange consists of an upper rectangular frame flange and a lower rectangular frame flange that share a long side.

3. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 2, characterized in that, The drain outlet of the water purification collection tank is a rectangular outlet, and the drain outlet of the water purification collection tank is connected to the upper rectangular frame flange of the L-shaped connecting flange.

4. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 2, characterized in that, The L-shaped water guide channel is equipped with two rectangular connecting flanges and an L-shaped cavity. The size of the rectangular connecting flanges is the same as the size of the lower rectangular frame flange of the U-shaped water guide channel. One end of the rectangular connecting flange of the L-shaped water guide channel is fixed to both sides of the wall panel with bolts to the lower rectangular frame flange.

5. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 1, characterized in that, The outlet of the L-shaped water guide channel is also connected to a top-to-bottom joint.

6. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 1, characterized in that, The sewage inlet is equipped with an inlet wave impeller, and the wave impeller has blades evenly distributed around the circumference of the shaft.

7. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 6, characterized in that, The diameter of the wave impeller is 1 / 2 to 2 / 3 of the height of the sewage inlet.

8. The solid-liquid separator with a unidirectional water inlet and outlet structure according to claim 6, characterized in that, The L-shaped water guide channel is equipped with an outlet wave impeller, which is connected to the inlet wave impeller via a transmission device. The outlet wave impeller and the inlet wave impeller rotate in opposite directions.

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