Environment-friendly sludge treatment equipment for water conservancy project

Abstract

The environment-friendly sludge treatment equipment for the water conservancy project comprises a shell, a filter pressing cavity is formed in the shell, a feeding opening and a slag discharging opening which communicate with the filter pressing cavity are formed in the right side of the top and the right side of the bottom of the shell correspondingly, and rail grooves are formed in the top and the bottom of the filter pressing cavity correspondingly; the partition plate piece comprises a feeding port partition plate and a slag discharging port partition plate, and the feeding port partition plate and the slag discharging port partition plate are arranged in the two rail grooves respectively and used for opening and closing the feeding port and the slag discharging port. The invention relates to the technical field of water conservancy projects. According to the environment-friendly sludge treatment equipment for the water conservancy project, by arranging the dewatering assembly, sludge and water can be separated when the sludge is extruded, deformation is conducted after dewatering is completed to enable the sludge to fall off, the sludge discharging efficiency is improved while the sludge dewatering effect is guaranteed, and therefore the sludge treatment efficiency is improved; the sludge treatment time is greatly shortened.

Description

Technical Field

[0001] The present invention relates to the technical field of water conservancy projects. Specifically, it relates to an environment-friendly silt treatment device for water conservancy projects. Background Art

[0002] The treatment of silt in water conservancy projects is an important link, which involves the effective management and treatment of silt deposited in water bodies such as rivers, lakes and reservoirs. The treatment of silt not only relates to the improvement of water quality, but also affects the normal operation of water conservancy facilities and the protection of the ecological environment.

[0003] Since silt essentially belongs to engineering waste, in accordance with the principles of reduction, harmlessness and resource utilization of solid waste treatment, resource utilization of silt should be considered as much as possible. For example, in rural areas, silt without heavy metal pollution but rich in nitrogen and phosphorus can be returned to the field and become the soil in the farmland.

[0004] In the prior art, silt usually contains high moisture and low strength, making it difficult to be directly utilized. The high moisture content also causes the silt to shake in the transport vehicle during transportation, and generates a large inertial force when the vehicle accelerates, decelerates or turns, resulting in accidents when the transport vehicle brakes suddenly or turns sharply. At the same time, the large water content also reduces the transportation volume of silt, leading to a substantial increase in the utilization cost of silt.

[0005] Therefore, those skilled in the art have provided an environment-friendly silt treatment device for water conservancy projects to solve the problems raised in the above background art. Summary of the Invention

[0006] The purpose of the present invention is to provide an environment-friendly silt treatment device for water conservancy projects to solve the problems raised in the above background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions: The above technical purpose of the present invention is achieved through the following technical solutions: An environment-friendly silt treatment device for water conservancy projects, including a housing. A pressure filtration chamber is provided inside the housing. A feeding port and a slag discharging port communicating with the pressure filtration chamber are respectively provided at the right side positions of the top and bottom of the housing. Track grooves are provided at both the top and bottom of the pressure filtration chamber; A partition member, which includes a feeding port partition and a slag discharging port partition. The feeding port partition and the slag discharging port partition are respectively arranged in the two track grooves for opening and closing the feeding port and the slag discharging port; A pressure assembly, which includes a pressing block and a hydraulic press. The pressing block is slidably arranged in the pressure filtration chamber. The top of the pressing block is connected to the feeding port partition through a clamping member. The hydraulic press is installed at the left side position of the housing. The output shaft of the hydraulic press extends into the pressure filtration chamber and is fixedly connected to the pressing block; A dehydration component, which includes a membrane filter plate, a connection block, a pressure valve and a water storage tank. The water storage tank is installed on the right side of the housing and is communicated with the pressure filtration chamber through a flow channel. A pressure valve is fixedly connected in the flow channel. A chute is provided on the right inner wall of the pressure filtration chamber. A connection block is connected in the chute through an elastic member. One side of the connection block extending out of the chute is fixedly connected with a membrane filter plate, so that a space for storing water is formed between the membrane filter plate and the connection block, and this space is communicated with the flow channel.

[0008] Further, the elastic member includes a support spring and a sliding damper. A first groove is concavely formed on the outer wall of the connection block, and a second groove is concavely formed on the inner wall of the chute corresponding to the position of the first groove. The first groove and the second groove are spliced to form an accommodation cavity. The sliding damper and the support spring are both arranged in the accommodation cavity, and both ends of the sliding damper and the support spring are fixedly connected with the side wall of the chute and the side wall of the connection block respectively.

[0009] Further, a guide groove is provided at the bottom of the housing. A hydraulic cylinder is arranged in the guide groove. The cylinder body of the hydraulic cylinder is fixedly connected with the bottom wall of the track groove, and the output shaft of the hydraulic cylinder is fixedly connected with the right side wall of the guide groove.

[0010] Further, a connection pipe is connected to the bottom of the housing. One end of the connection pipe is connected with the hydraulic cylinder, and the other end of the connection pipe is communicated with the position of the flow channel on the left side of the pressure valve.

[0011] Further, the membrane filter plate is mainly composed of a filter plate body and a diaphragm. A diaphragm is fixedly connected to the left side of the filter plate body. A drainage cavity for draining water is formed between the filter plate body and the diaphragm. Drainage holes communicated with the flow channel are provided on the inner wall of the drainage cavity.

[0012] Further, the length of the slag discharge port partition plate is greater than the stroke length of the extrusion block, so that the side of the slag discharge port partition plate away from the slag discharge port always coincides with the extrusion block.

[0013] Further, the clamping member includes a limiting plate and a limiting block. A connection groove is horizontally opened at the top right of the extrusion block. A limiting plate is slidably arranged in the connection groove. The top of the limiting plate is fixedly connected with the feeding port partition plate. A round hole is opened at the bottom of the limiting plate. A limiting block is connected in the round hole through a compression spring. A limiting groove for clamping the limiting block is opened at the right edge position of the connection groove.

[0014] Further, the bottom wall of the feeding port partition plate and the top wall of the slag discharge port partition plate are respectively flush with the top wall and the bottom wall of the pressure filtration chamber. A sealing sheet in contact with the feeding port partition plate, the slag discharge port partition plate and the inner wall of the pressure filtration chamber is connected to the right side of the extrusion block.

[0015] In summary, the present invention includes at least one of the following beneficial technical effects: 1. The environmentally friendly sludge treatment equipment for water conservancy projects can separate sludge from water when the sludge is squeezed through the provided dehydration component, and the sludge will fall off after deformation when the dehydration is completed. While ensuring the dehydration effect of the sludge, it improves the discharging efficiency of the sludge, thereby improving the treatment efficiency of the sludge, significantly reducing the treatment time of the sludge, improving the conveying efficiency of the sludge, and at the same time, the dehydrated sludge will not shake during transportation, which can greatly reduce the transportation cost. 2. The environmentally friendly sludge treatment equipment for water conservancy projects can automatically close the partition of the feeding port when treating sludge and automatically open it after the sludge treatment is completed through the provided clamping parts, making the opening and closing of the feeding port automated, which can effectively reduce the control difficulty of the sludge treatment equipment and further improve the treatment efficiency of the sludge. 3. The environmentally friendly sludge treatment equipment for water conservancy projects can automatically open the slag discharge port after the sludge treatment is completed and automatically close the slag discharge port after the sludge discharging is completed through the provided hydraulic cylinder and connecting pipe, realizing the automation of the opening and closing of the slag discharge port, which can further reduce the control difficulty of the sludge treatment equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 FIG. is a schematic structural diagram of the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0018] Figure 2 FIG. is an internal structural diagram of the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0019] Figure 3 FIG. is a schematic diagram of the state during the pressure filtration process of the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0020] Figure 4 FIG. is a schematic structural diagram of the clamping part in the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0021] Figure 5 FIG. is a schematic structural diagram of the partition of the slag discharge port in the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0022] Figure 6 FIG. is a schematic structural diagram of the membrane filter plate in the environmentally friendly sludge treatment equipment for water conservancy projects of the present invention.

[0023] Figure 7 This is a schematic diagram of the state when an environmentally friendly silt treatment device for water conservancy projects of the present invention is reset.

[0024] Figure 8 This is a schematic diagram of the state during the discharging process of an environmentally friendly silt treatment device for water conservancy projects of the present invention.

[0025] Figure 9 This is a schematic diagram of the state after the discharging of an environmentally friendly silt treatment device for water conservancy projects of the present invention is completed.

[0026] In the figure, 1 is the housing; 2 is the partition member; 201 is the feeding port partition; 202 is the slag discharge port partition; 3 is the pressure assembly; 301 is the extrusion block; 302 is the hydraulic press; 4 is the dehydration assembly; 401 is the membrane filter plate, 4011 is the filter plate body, 4012 is the diaphragm; 402 is the connecting block; 403 is the pressure valve; 404 is the water storage tank; 5 is the pressure filtration chamber; 6 is the feeding port; 7 is the slag discharge port; 8 is the track groove; 9 is the clamping member, 901 is the limiting plate, 902 is the limiting block; 10 is the flow channel; 11 is the sliding groove; 12 is the elastic member, 1201 is the support spring, 1202 is the sliding damper; 13 is the accommodating cavity; 14 is the guiding groove; 15 is the hydraulic cylinder; 16 is the connecting pipe; 17 is the drainage chamber; 18 is the drainage hole; 19 is the connecting groove; 20 is the round hole; 21 is the compression spring; 22 is the limiting groove; 23 is the sealing piece. Detailed implementation manners

[0027] Next, in combination with the drawings and specific implementation manners, a further description of the present invention will be made: Embodiment

[0028] Refer to Figure 1 - Figure 9 An environmentally friendly silt treatment device for water conservancy projects disclosed by the present invention includes a housing 1. A pressure filtration chamber 5 is provided inside the housing 1. A feeding port 6 and a slag discharge port 7 communicating with the pressure filtration chamber 5 are respectively provided at the right side positions of the top and bottom of the housing 1. Track grooves 8 are provided at both the top and bottom of the pressure filtration chamber 5; A partition member 2, which includes a feeding port partition 201 and a slag discharge port partition 202. The feeding port partition 201 and the slag discharge port partition 202 are respectively arranged in the two track grooves 8 for opening and closing the feeding port 6 and the slag discharge port 7; A pressure assembly 3, which includes an extrusion block 301 and a hydraulic press 302. The extrusion block 301 is slidably arranged in the pressure filtration chamber 5. The top of the extrusion block 301 is connected to the feeding port partition 201 through a clamping member 9. The hydraulic press 302 is installed at the left side position of the housing 1. The output shaft of the hydraulic press 302 extends into the pressure filtration chamber 5 and is fixedly connected to the extrusion block 301; The dehydration assembly 4 includes a membrane filter plate 401, a connecting block 402, a pressure valve 403, and a water storage tank 404. The water storage tank 404 is installed on the right side of the housing 1 and is connected to the pressure filtration chamber 5 through a flow channel 10. A pressure valve 403 is fixedly connected in the flow channel 10. A chute 11 is provided on the right inner wall of the pressure filtration chamber 5. A connecting block 402 is connected in the chute 11 through an elastic member 12. One side of the connecting block 402 extending out of the chute 11 is fixedly connected to the membrane filter plate 401, so that a space for storing water is formed between the membrane filter plate 401 and the connecting block 402, and this space is communicated with the flow channel 10.

[0029] In this embodiment, observing Figure 1 and Figure 2 it can be found that by providing a pressure filtration chamber 5 in the housing 1 and providing a feeding port 6 and a slag discharging port 7 communicated with the pressure filtration chamber 5 at the top and bottom right positions of the housing 1 respectively, it can be used for feeding sludge and discharging dewatered sludge.

[0030] Then looking at Figure 2 , a pressing block 301 is slidably connected to the left side of the pressure filtration chamber 5, and a membrane filter plate 401 is connected to the right side position of the pressure filtration chamber 5. A hydraulic press 302 is connected to the left side of the housing 1. The output shaft of the hydraulic press 302 is inserted into the housing 1 and is fixedly connected to the pressing block 301. At this time, when the hydraulic press 302 operates, a relatively large pressure can be applied to the pressing block 301, so that the pressing block 301 approaches the membrane filter plate 401. Observing Figure 3 it can be found that at this time, the hydraulic press 302 pushes the pressing block 301 towards the membrane filter plate 401, and while approaching, compresses the sludge between the pressing block 301 and the membrane filter plate 401 to squeeze out the water in the sludge. Then the squeezed-out water will be discharged through the membrane filter plate 401 to realize the dehydration treatment of the sludge.

[0031] Finally, the dehydrated sludge is compressed into blocks. As the pressing block 301 resets, the slag discharging port 7 at the bottom of the housing 1 will also be opened synchronously to discharge the blocky sludge out of the pressure filtration chamber 5, completing the operation of sludge dehydration.

[0032] However, due to the existence of the feeding port 6 and the slag discharging port 7, the sludge in the pressure filtration chamber 5 will leak through the feeding port 6 and the slag discharging port 7 when being pressed. Therefore, in Figure 2 and Figure 3 it can be found that track grooves 8 are provided at the top and bottom of the pressure filtration chamber 5, and a feeding port partition plate 201 and a slag discharging port partition plate 202 are respectively slidably connected in the two track grooves 8. Then in combination with Figure 5, we can find that when the feeding port partition plate 201 and the slag discharge port partition plate 202 are fully closed, they completely cover the feeding port 6 and the slag discharge port 7. At this time, when the extrusion block 301 extrudes the sludge, the huge pressure generated in the pressure filtration chamber 5 will firmly press the slag discharge port partition plate 202 and the feeding port partition plate 201 in the track groove 8, enabling the feeding port partition plate 201 and the slag discharge port partition plate 202 to play a sealing role, effectively preventing the sludge from leaking during the pressure filtration operation.

[0033] Since the sludge contains a large amount of water, a large amount of wastewater will be generated during the pressure filtration of the sludge. Directly discharging this wastewater will not only increase the subsequent cleaning difficulty but also pollute the environment. Therefore, looking at Figure 6 , Figure 6 is the structural schematic diagram of the dehydration component 4. We can find that the membrane filter plate 401 is mainly composed of a filter plate body 4011 and a diaphragm 4012. A diaphragm 4012 is fixedly connected to the left side of the filter plate body 4011, and a drainage cavity 17 for discharging liquid is reserved between the diaphragm 4012 and the filter plate body 4011. A drainage hole 18 communicating with the drainage cavity 17 is opened on the right side of the filter plate body 4011, which can be used to discharge the liquid filtered by pressure through the drainage hole 18. A water storage tank 404 is fixedly connected to the right side of the housing 1, and the water storage tank 404 is communicated with the pressure filtration chamber 5 through a flow channel 10. At this time, the water discharged from the drainage hole 18 can enter the water storage tank 404 through the flow channel 10 and is transported through the pipeline provided on the outer wall of the water storage tank 404 to achieve the directional collection of sewage and avoid polluting the environment.

[0034] When the sludge is compressed into a block, the gaps in the sludge are very small, resulting in the sludge sticking tightly to the diaphragm 4012 when discharging the slag, causing incomplete discharge of the sludge and affecting the subsequent sludge pressure filtration effect. Therefore, we look at Figure 6 and can find that a sliding groove 11 is opened at the right side position of the pressure filtration chamber 5. A connecting block 402 is slidably connected in the sliding groove, and one side of the connecting block 402 extending out of the sliding groove 11 is fixedly connected to the membrane filter plate 401, enabling the membrane filter plate 401 to slide in the pressure filtration chamber 5. And in Figure 7 it can be found that Figure 7It is a schematic diagram of the state when the hydraulic press 302 drives the extrusion block 301 to reset after the sludge dewatering is completed. In this perspective, it can be seen that a plurality of elastic members 12 are provided between the connecting block 402 and the chute 11. At this time, when the extrusion block 301 resets, the space between the extrusion block 301 and the membrane filter plate 401 is stretched, thereby forming a vacuum chamber between the extrusion block 301 and the membrane filter plate 401, causing the membrane filter plate 401 to be pushed leftward under the action of air pressure. Due to the setting of the connecting block 402, a water storage space is formed between the connecting block 402 and the membrane filter plate 401. At this time, when the membrane filter plate 401 moves leftward, this space will increase, thereby generating negative pressure, causing the water that originally flowed into the water storage tank 404 through the flow channel 10 to be sucked back to balance the pressure.

[0035] After the extrusion block 301 resets, the slag discharge port partition 202 is opened to allow air to enter the pressure filtration chamber 5. At this time, the gas in the pressure filtration chamber 5 is balanced, and the pressure applied to the membrane filter plate 401 disappears. At this time, the elastic member 12 stretched by the movement of the connecting block 402 will release potential energy, causing the connecting block 402 to reset, thereby causing the membrane filter plate 401 to reset. When the membrane filter plate 401 and the connecting block 402 reset, the originally stretched water storage space will be squeezed, and the water in the space will be squeezed out. At this time, most of the squeezed water will flow into the water storage tank 404, and a small part will flow back into the membrane filter plate 401 under the action of pressure, increasing the water in the drainage cavity 17 of the membrane filter plate 401, causing the diaphragm 4012 to be lifted by the incoming water, so that the diaphragm 4012 Figure 8 deforms as shown in the state, making the surface of the diaphragm 4012 no longer flat, so that the sludge adhering to the surface of the diaphragm 4012 cannot maintain stable contact with the diaphragm 4012 and falls off, which can effectively improve the slag discharge effect to ensure the efficiency of subsequent sludge dewatering.

[0036] When the slag discharge port 7 is opened, the process of air surging into the pressure filtration chamber 5 is very short, so the rebound of the membrane filter plate 401 is also a relatively fast process. Therefore, when the diaphragm 4012 expands at a relatively fast speed, a thrust will be applied to the sludge block attached to the diaphragm 4012, resulting in the sludge block falling in a parabolic shape, and there is a probability that the sludge block will fall on the slag discharge port partition 202, affecting the slag discharge effect.

[0037] So in Figure 7As can be seen, the elastic member 12 includes a support spring 1201 and a sliding damper 1202. A first groove is formed by concave-concaving the outer wall of the connecting block 402, and a second groove is formed by concave-concaving the inner wall of the chute 11 at a position corresponding to the first groove. The first groove and the second groove are spliced to form a receiving cavity 13. Both the sliding damper 1202 and the support spring 1201 are arranged in the receiving cavity 13, and both ends of the sliding damper 1202 and the support spring 1201 are fixedly connected to the side wall of the chute 11 and the side wall of the connecting block 402 respectively. At this time, when air surges into the pressure filtration chamber 5, during the process of the support spring 1201 driving the membrane filter plate 401 to reset, it will be assisted by the sliding damper 1202, weakening the retreat speed of the membrane filter plate 401, thereby preventing the sludge block from being pushed, enabling the sludge block to fall vertically, and effectively ensuring the discharging efficiency of the sludge block.

[0038] However, the setting of the sliding damper 1202 slows down the retreat speed of the membrane filter plate 401, thereby deteriorating the squeezing effect on the diaphragm 4012 when the water is pressurized, and resulting in the inability of the diaphragm 4012 to separate from the sludge block. Therefore, in Figure 7 It can also be found that a pressure valve 403 is connected in the flow channel 10. At this time, when the membrane filter plate 401 resets, the liquid cannot directly enter the water storage tank 404 due to the blockage of the pressure valve 403. At this time, the pressurized liquid will all enter the drainage chamber 17, effectively ensuring the expansion stability of the diaphragm 4012.

[0039] Since a lateral force needs to be applied to open the slag discharge port partition 202, generally, equipment such as a linear actuator or a hydraulic cylinder is used for operation. This method not only increases the manufacturing cost of the sludge treatment equipment but also improves the control difficulty of the sludge treatment equipment. At the same time, there are a series of subsequent maintenance and servicing tasks, resulting in an increase in the usage cost of the sludge treatment equipment.

[0040] Therefore, observing Figure 5 it can be found that Figure 5 is a cross-sectional view of the slag discharge port partition 202. At this time, it can be found that a guiding groove 14 is opened at the bottom of the slag discharge port partition 202. A hydraulic cylinder 15 is arranged in the guiding groove 14. The cylinder body of the hydraulic cylinder 15 is fixedly connected to the bottom wall of the track groove 8, and the output shaft of the hydraulic cylinder 15 is fixedly connected to the right side wall of the guiding groove 14. Subsequently, a connecting pipe 16 is arranged at the bottom of the housing 1. One end of the connecting pipe 16 is connected to the hydraulic cylinder 15, and the other end is communicated with the flow channel 10. When the membrane filter plate 401 moves leftward to absorb water, the liquid in the two hydraulic cylinders 15 can be sucked away through the connecting pipe 16, causing the output shaft of the hydraulic cylinder 15 to retract, thereby pulling the slag discharge port partition 202 to move and opening the slag discharge port 7 to achieve the effect of automatic discharging.

[0041] And in Figure 6It can be found that the connection position between the connecting pipe 16 and the flow channel 10 is located on the left side of the pressure valve 403. At this time, when the membrane filter plate 401 moves leftward, since the pressure in the flow channel 10 cannot open the pressure valve 403, the leftward movement of the membrane filter plate 401 will draw away the liquid in the hydraulic cylinder 15, which can ensure the opening stability of the slag discharge port partition plate 202.

[0042] Subsequently, when the membrane filter plate 401 resets, due to the certain elasticity of the diaphragm 4012, the pressure for the liquid to support the diaphragm 4012 is much smaller than the pressure for pushing the slag discharge port partition plate 202. Therefore, when the liquid is pressurized, it will preferentially flow to the place with lower pressure, so that the diaphragm 4012 can stably maintain the expansion action. As the diaphragm 4012 expands, the elastic force of the diaphragm 4012 will increase. When the pressure is the same as the pressure for pushing the slag discharge port partition plate 202, when the membrane filter plate 401 resets, it will push the slag discharge port partition plate 202 to reset, realizing the automatic closing action after discharging, which can effectively reduce the usage difficulty of the sludge treatment equipment.

[0043] Since the dehydration process of the sludge is to first open the feeding port partition plate 201, then load the sludge into the pressure filtration chamber 5, then close the feeding port partition plate 201, so that the pressure component 3 squeezes the sludge for dehydration. Finally, after the sludge dehydration is completed, open the slag discharge port partition plate 202 to discharge the sludge block. In the above process, the control of the opening time of the feeding port partition plate 201 is very important. It not only needs to be opened after discharging to supplement new sludge, but also needs to be closed during the sludge dehydration to prevent the sludge from leaking during the extrusion dehydration. This closing process has to continue until the slag discharge port partition plate 202 is closed after the slag is discharged from the slag discharge port 7, which increases the usage difficulty of the sludge treatment equipment. At the same time, in order to open the slag discharge port partition plate 202, an additional power source needs to be set, resulting in an increase in the costs of maintenance and use, and an increase in the usage difficulty.

[0044] So in Figure 3 it can be found that a clamping part 9 is connected to the bottom of the feeding port partition plate 201. Subsequently, looking at Figure 4 , Figure 4 which is a cross-sectional view of the extrusion block 301. At this time, it can be seen that a connecting groove 19 is horizontally opened at the right top position of the extrusion block 301. A limiting plate 901 is slidably arranged in the connecting groove 19. The top of the limiting plate 901 is fixedly connected to the feeding port partition plate 201. A round hole 20 is opened at the bottom of the limiting plate 901. A limiting block 902 is connected to the round hole 20 through a compression spring 21. And a limiting groove 22 for clamping the limiting block 902 is opened at the right edge position of the connecting groove 19.

[0045] In the initial state, the slag discharge port partition 202 is in an open state, and the limit block 902 is stuck in the limit groove 22. At this time, after the sludge perfusion is completed, as the extrusion block 301 is pushed to the right, the feeding port partition 201 will also move to the right together, gradually blocking the feeding port 6 and realizing the automatic closing of the feeding port 6.

[0046] However, when the feeding port is just closed, there is still a large space between the position where the extrusion block 301 is located and the membrane filter plate 401, resulting in incomplete dehydration of the sludge. Therefore, after the feeding port partition 201 completely blocks the feeding port 6, the extrusion block 301 will continue to be pushed to the right. At this time, the feeding port partition 201 is blocked by the track groove 8 and cannot continue to move with the extrusion block 301, so that the limit block 902 slides into the round hole 20 under pressure, causing the feeding port partition 201 and the extrusion block 301 to Figure 3 be temporarily separated as shown in the state.

[0047] When the sludge pressure filtration is completed, as the extrusion block 301 resets, the extrusion block 301 will Figures 7 to 8 be in the state as shown. When the limit plate 901 re-enters the connection groove 19, the slag discharge port partition 202 will open to realize the slag discharge action. As the extrusion block 301 continues to move to the left, when the limit block 902 re-enters the limit groove 22, the slag discharge port partition 202 will close again. Finally, after the extrusion block 301 is completely reset, the feeding port partition 201 will drive the extrusion block 301 to open the feeding port 6, facilitating the next sludge dehydration operation.

[0048] In a further preferred embodiment of the present invention, as Figure 9 shown, the length of the slag discharge port partition 202 is greater than the stroke length of the extrusion block 301, so that the side of the slag discharge port partition 202 away from the slag discharge port 7 always coincides with the extrusion block 301.

[0049] In this embodiment, since the slag discharge port partition 202 needs to slide in the track groove 8, the length of the track groove 8 should be greater than the length of the slag discharge port partition 202, which will cause the sludge to enter the track groove 8 and affect the dehydration treatment of the sludge.

[0050] So it can be observed Figure 9 that by making the length of the slag discharge port partition 202 greater than the stroke length of the extrusion block 301, the side of the slag discharge port partition 202 away from the slag discharge port 7 always coincides with the extrusion block 301. At this time, it can be found that no matter where the extrusion block 301 is located, the extrusion block 301 can prevent the sludge from flowing into the track groove 8, effectively ensuring the dehydration effect of the sludge.

[0051] In a further preferred embodiment of the present invention, as Figure 3 - Figure 5As shown, the bottom of the feeding port partition plate 201 and the top wall of the slag discharge port partition plate 202 are flush with the top wall and the bottom wall of the pressure filtration chamber 5 respectively, and a sealing piece 23 which contacts the feeding port partition plate 201, the slag discharge port partition plate 202 and the inner wall of the pressure filtration chamber 5 is connected to the right side of the extrusion block 301.

[0052] In this embodiment, since a very large pressure needs to be applied when the extrusion block 301 presses and filters the sludge for dehydration, and there are also a track groove 8 and a slidable partition member 2 provided in the pressure filtration chamber 5, it will cause sewage or sludge to leak through the gap between the extrusion block 301 and the partition member 2 under the action of the large pressure.

[0053] Therefore, in combination with Figure 3 - Figure 5 It can be found that the bottom of the feeding port partition plate 201 and the top wall of the slag discharge port partition plate 202 are flush with the top wall and the bottom wall of the pressure filtration chamber 5 respectively, and a sealing piece 23 which contacts the feeding port partition plate 201, the slag discharge port partition plate 202 and the inner wall of the pressure filtration chamber 5 is connected to the right side of the extrusion block 301. At this time, when the extrusion block 301 slides, the sealing piece 23 is deformed under pressure, making the contact between the sealing piece 23 and the feeding port partition plate 201, the slag discharge port partition plate 202 and the inner wall of the pressure filtration chamber 5 closer, which can effectively avoid leakage.

[0054] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly silt treatment device for water conservancy projects, characterized in that, It includes a housing (1). A pressure filtration chamber (5) is formed inside the housing (1). A feeding port (6) and a slag discharging port (7) which are communicated with the pressure filtration chamber (5) are respectively formed at the right side positions of the top and bottom of the housing (1). Track grooves (8) are formed at both the top and bottom of the pressure filtration chamber (5). A partition member (2) which includes a feeding port partition (201) and a slag discharging port partition (202). The feeding port partition (201) and the slag discharging port partition (202) are respectively arranged in two track grooves (8) and are used for opening and closing the feeding port (6) and the slag discharging port (7). A pressure assembly (3) which includes a pressing block (301) and a hydraulic press (302). The pressing block (301) is slidably arranged in the pressure filtration chamber (5). The top of the pressing block (301) is connected with the feeding port partition (201) through a clamping member (9). The hydraulic press (302) is installed at the left side position of the housing (1). The output shaft of the hydraulic press (302) extends into the pressure filtration chamber (5) and is fixedly connected with the pressing block (301). A dehydration assembly (4) which includes a membrane filter plate (401), a connecting block (402), a pressure valve (403) and a water storage tank (404). The water storage tank (404) is installed at the right side of the housing (1) and is communicated with the pressure filtration chamber (5) through a flow channel (10). A pressure valve (403) is fixedly connected in the flow channel (10). A sliding groove (11) is formed on the right inner wall of the pressure filtration chamber (5). A connecting block (402) is connected in the sliding groove (11) through an elastic member (12). One side of the connecting block (402) extending out of the sliding groove (11) is fixedly connected with the membrane filter plate (401), so that a space for storing water is formed between the membrane filter plate (401) and the connecting block (402), and this space is communicated with the flow channel (10).

2. An environmentally friendly silt treatment device for water conservancy projects according to claim 1, characterized in that, The elastic member (12) includes a support spring (1201) and a sliding damper (1202). A first groove is concavely formed on the outer wall of the connecting block (402). A second groove is concavely formed on the inner wall of the sliding groove (11) corresponding to the first groove. The first groove and the second groove are spliced to form a receiving cavity (13). The sliding damper (1202) and the support spring (1201) are both arranged in the receiving cavity (13). The two ends of the sliding damper (1202) and the support spring (1201) are respectively fixedly connected with the side walls of the sliding groove (11) and the connecting block (402).

3. An environment-friendly silt treatment device for water conservancy projects according to claim 2, characterized in that, A guiding groove (14) is formed at the bottom of the housing (1). A hydraulic cylinder (15) is arranged in the guiding groove (14). The cylinder body of the hydraulic cylinder (15) is fixedly connected with the bottom wall of the track groove (8). The output shaft of the hydraulic cylinder (15) is fixedly connected with the right side wall of the guiding groove (14).

4. An environmentally friendly silt treatment device for water conservancy projects according to claim 3, characterized in that, A connecting pipe (16) is connected to the bottom of the housing (1). One end of the connecting pipe (16) is connected with the hydraulic cylinder (15), and the other end of the connecting pipe (16) is communicated with the flow channel (10) at the left side position of the pressure valve (403).

5. An environment-friendly silt treatment device for water conservancy projects according to claim 4, characterized in that, The membrane filter plate (401) is mainly composed of a filter plate body (4011) and a diaphragm (4012). The diaphragm (4012) is fixedly connected to the left side of the filter plate body (4011). A drainage cavity (17) for draining water is formed between the filter plate body (4011) and the diaphragm (4012). Drainage holes (18) communicating with the flow channel (10) are formed in the inner wall of the drainage cavity (17).

6. An environment-friendly silt treatment device for water conservancy projects according to claim 5, characterized in that, The length of the slag discharge port partition plate (202) is greater than the stroke length of the extrusion block (301), so that the side of the slag discharge port partition plate (202) away from the slag discharge port (7) always coincides with the extrusion block (301).

7. An environment-friendly silt treatment device for water conservancy projects according to claim 6, characterized in that, The clamping member (9) includes a limiting plate (901) and a limiting block (902). A connecting groove (19) is horizontally formed at the top right side of the extrusion block (301). The limiting plate (901) is slidably arranged in the connecting groove (19). The top of the limiting plate (901) is fixedly connected to the feeding port partition plate (201). A round hole (20) is formed at the bottom of the limiting plate (901). The limiting block (902) is connected in the round hole (20) through a compression spring (21). A limiting groove (22) for clamping the limiting block (902) is formed at the right edge position of the connecting groove (19).

8. An environmentally friendly silt treatment device for water conservancy projects according to claim 7, characterized in that, The bottom wall of the feeding port partition plate (201) and the top wall of the slag discharge port partition plate (202) are respectively flush with the top wall and the bottom wall of the pressure filtration cavity (5). A sealing sheet (23) in contact with the feeding port partition plate (201), the slag discharge port partition plate (202) and the inner wall of the pressure filtration cavity (5) is connected to the right side of the extrusion block (301).

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