River sludge treatment filter pressing device

Abstract

The invention discloses a river sludge treatment filter pressing device which comprises a filter press body, a filter pressing plate frame and a plate pulling trolley, the filter pressing plate frame is slidably mounted between racks of the filter press body, and the plate pulling trolley used for pulling the filter pressing plate frame is mounted at a side guide rail of the filter press body. The plate lifting mechanism is arranged at the position of the plate pulling trolley of the filter press body, and the plate lifting mechanism and the plate pulling trolley work cooperatively, so that automatic supporting and lifting and movable desliming during desliming of a filter pressing plate frame are achieved; the plate blowing mechanism arranged at the filter pressing plate frame is matched with the air transmission mechanism arranged at the plate lifting mechanism and the plate blowing mechanism to blow the filter cloth at the filter pressing plate frame, and meanwhile, the cake bouncing mechanism arranged at the circular truncated cone rib of the filter pressing plate frame can provide desliming elasticity, so that the filter cloth is easily separated from a mud cake under the action of the force; it is effectively guaranteed that river sludge filter-pressing mud cakes can be easily shaken off at the filter-pressing plate frame.

Description

Technical Field

[0001] The invention relates to the technical field of river sludge filter press treatment, and in particular to a river sludge filter press treatment device. Background Art

[0002] River sludge refers to the silty material containing organic matter, inorganic matter and microorganisms deposited at the bottom of the river. The accumulation of river sludge will block the river, reduce the water flow rate and affect the self-purification ability of the river. Therefore, river sludge will be cleaned as needed. When cleaning river sludge, a high-pressure water gun is usually used to scour and destroy the riverbed sludge, and then a mud pump is used to suck the sludge and discharge it to a filter press dedicated to river sludge for filtration treatment. The river sludge filter press is a special equipment. Its working principle is mainly based on the principle of automatic dehydration and extrusion dehydration. When working, the sludge is introduced into the equipment through a mud pump. After plate and frame pressing and extrusion treatment with filter cloth, the products are clean water and mud cake. This treatment method does not require manual unloading. The moisture in the mud cake is effectively removed and can be directly packaged and transported. At the same time, the clean water generated can be directly discharged.

[0003] At present, when river sludge is subjected to filter pressing treatment in a plate and frame filter press, the dehydrated mud cake will be pressed on the surface of the filter cloth after being squeezed by the plate frame equipped with filter cloth. When the plate frame is pulled apart by the plate pulling trolley, the mud cake on the surface of the filter cloth falls downward due to its own weight. As the filter cloth is worn out due to repeated use, the separation between the filter cloth and the mud cake will decrease. After the plate pulling trolley pulls the plate frame, the mud cake on the surface of the filter cloth is often not easy to fall off. At this time, workers are often required to use sticks to knock the mud cakes that have not fallen off one by one, which leads to inconvenience in the filter pressing treatment of river sludge. For this reason, we propose a filter pressing device for treating river sludge. Summary of the invention

[0004] The main purpose of the present invention is to provide a river sludge treatment filter press device. The present invention arranges a plate lifting mechanism at the plate pulling trolley of the filter press body. The plate lifting mechanism and the plate pulling trolley work together to realize the automatic lifting and movement of the filter press plate frame during mud removal, so that the filter press plate frame can be pulled away, lifted and shaken for mud removal, and a blowing plate mechanism is arranged at the filter press plate frame to cooperate with the air transmission mechanism arranged at the plate lifting mechanism. The air transmission mechanism can introduce the gas provided by the external compressor into the blowing plate mechanism for vertical blowing, so that The filter cloth outside the filter press frame is blown, and the mud cake outside the auxiliary filter cloth can be loosened. The cake-bouncing mechanism arranged at the conical ribs of the filter press frame can accumulate elastic force when the filter press frame is filtering the mud. After the filter press frame is pulled open by the pulling trolley, the spring-supported T-shaped elastic column of the cake-bouncing mechanism hits the filter cloth outside the filter press frame, so that the mud cake can be better separated from the filter cloth after being acted upon by the elastic force, effectively ensuring that the mud cake of river sludge filtering can be easily shaken off at the filter press frame, which can effectively solve the problems in the background technology.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A filter press device for treating river sludge comprises a filter press body, a filter plate frame and a plate pulling trolley, wherein the filter plate frame is slidably installed between the frames of the filter press body, and the plate pulling trolley for pulling the filter plate frame is installed at the side guide rails of the filter press body, and further comprises a plate lifting mechanism, an air transmission mechanism, a plate blowing mechanism and a cake bouncing mechanism, a plate lifting mechanism for supporting the filter plate frame is installed outside the side shell body of the plate pulling trolley, and an air transmission mechanism for active air introduction is installed at the plate lifting mechanism through a support plate, a plate blowing mechanism for cooperating with the air transmission mechanism for vertical air blowing is arranged at the top of the filter plate frame, and a frustum rib is raised on the surface of the filter plate frame, and a cake bouncing mechanism for bouncing mud cakes is arranged at the frustum rib.

[0007] Furthermore, the plate lifting mechanism includes a strip-mounted plate, a support platform, an electric push rod, a lifting plate and an inclined limiting plate. The strip-mounted plate is locked on the outside of the side shell of the plate pulling trolley by bolts, and a support platform is welded on the top of the strip-mounted plate. An electric push rod is installed under the platform groove of the support platform, and the telescopic rod of the electric push rod passes through the platform groove of the support platform upward. A lifting plate for lifting the filter press plate frame is installed at the telescopic rod head of the electric push rod passing through the support platform, and inclined limiting plates for limiting the filter press plate frame are symmetrically fixed on both sides of the plate body of the lifting plate;

[0008] The following effects can be achieved by adopting the above-mentioned preferred technical scheme. After the strip plate of the lifting plate mechanism is installed on the plate pulling trolley by bolt locking, the outer side of the strip plate can be supported by the support platform with the electric push rod, and then the lifting plate can be installed at the telescopic rod head of the support platform by the electric push rod. When the plate pulling trolley slides on the side guide rail of the filter press body to pull the filter plate frame, the electric push rod can move with it, and then the electric push rod can push the lifting plate to lift and lower. The lifting plate can be lifted and lowered by the inclined limit plate to support the edge block of the filter press frame for lifting and lowering. At the same time, the two groups of plate pulling trolleys on both sides of the filter press body can be staggered by a certain distance, so that the filter press frame can be lifted and lowered and shaken, to ensure that the outer side of the filter press frame can shake off the mud cake after the river sludge is filtered after the filter cloth is put on, and when the filter press frame is lifted and shaken, there is an inclined limit plate at the lifting plate to limit it, which can prevent the filter press frame from falling out.

[0009] Furthermore, the outer shell of the electric push rod is symmetrically welded with side plates, and the side plates are locked with the lower table surface of the support platform by bolts, and the telescopic rod head of the electric push rod and the lifting plate surface are provided with threaded holes for vertically screwing bolts;

[0010] By adopting the above-mentioned preferred technical solution, the following effects can be achieved. After the side plates are welded to the outside of the shell of the electric push rod, the side plates can be locked under the support platform by bolts to obtain support, and then the lifting plate and the electric push rod can be screwed with bolts for locking connection to ensure that the electric push rod can push the lifting plate up.

[0011] Furthermore, a support plate for supporting the gas transmission mechanism is welded outside the arc plate edge of the lifting plate away from the inclined limiting plate, and the gas transmission mechanism includes a bottom-mounted pipe, a bottom connecting pipe, an L-shaped flat pipe, a plug-in pipe and a vertical guide pipe. The bottom-mounted pipe is welded at the support plate, and the bottom connecting pipe is screwed and installed at the lower pipe mouth of the bottom-mounted pipe. The bottom-mounted pipe above the support plate is interconnected and welded with the plug-in pipe through the L-shaped flat pipe, and the head pipe mouth of the plug-in pipe is interconnected and welded with a vertical guide pipe for cooperating with the blowing plate mechanism for vertical exhaust.

[0012] By adopting the above-mentioned preferred technical solution, the following effects can be achieved. After the support plate is welded at the arc plate edge of the lifting plate, the bottom pipe can be inserted and welded at the support plate, and a bottom connecting pipe can be installed under the bottom pipe to connect the hose of the external air supply equipment. At the same time, the bottom pipe can be connected to the connecting pipe through an L-shaped flat pipe. When the electric push rod of the lifting plate mechanism carries the lifting plate and the support plate to rise, the connecting pipe can cooperate with the vertical guide pipe to be stuck in the joint of the blowing plate mechanism for temporary air supply and downward blowing.

[0013] Further, the blowing plate mechanism comprises a fixed groove, a cover plate, a U-shaped conduit, an air connection pipe and a connection seat, the top of the filter press plate frame is symmetrically provided with a fixed groove intercommunication with the plate groove, and a cover plate is fixed in the fixed groove, a U-shaped conduit is clamped between the cover plate and the fixed groove, and the top of the tube body of the U-shaped conduit is interconnected and welded with the connection seat through the air connection pipe, and a U-shaped guide groove for clamping the vertical guide pipe is provided on the side seat surface of the connection seat;

[0014] By adopting the above preferred technical scheme, the following effects can be achieved. After the fixing groove of the blowing plate mechanism is set at the filter press plate frame, the cover plate can be fixed in the fixing groove, and then a U-shaped conduit can be inserted between the cover plate and the fixing groove for installation, and the connector above the U-shaped conduit is connected with an air pipe through a U-shaped guide groove and temporarily inserted into a vertical guide pipe for air supply, so that compressed gas can enter the filter press plate frame from the U-shaped conduit. If a filter cloth is arranged outside the filter press plate frame for filtration to produce a mud cake, the filter cloth can be blown, and the auxiliary mud cake can be better dropped.

[0015] Further, an inner ring groove of a spring mechanism is provided in the truncated cone rib below the fixed groove, and the spring mechanism comprises an inner ring groove, an inner fixed ring, a support block, a notch, a spring hole, a spring and a T-shaped spring column, a notch is provided between the notch of the inner ring groove and the surface of the truncated cone rib, and an inner fixed ring is clamped in the inner ring groove, a support block for clamping in the inner ring groove is protruded on the outer ring body of the inner fixed ring, and a spring hole for clamping the spring is provided between the central groove wall of the inner ring groove and the truncated cone rib, and a T-shaped spring column for penetrating the inner fixed ring is clamped in the spring hole on one side of the spring;

[0016] By adopting the above preferred technical scheme, the following effects can be achieved. After the inner ring groove and the notch of the spring cake mechanism are opened at the truncated cone rib, the spring hole can be set at the truncated cone rib, and then the spring can be put into the spring hole from the inner ring groove, and then the T-shaped spring column can be inserted into the spring hole from the inner ring groove to compress the spring, and then the inner fixed ring can be inserted outside the T-shaped spring column, and then the support block of the inner fixed ring can be inserted into the inner ring groove from the notch and rotated, so that the support block can be transferred into the inner ring groove to stop retreat, and when the filter press plate frame with the filter cloth is mounted to squeeze the mud cake, the T-shaped spring column can enter the ring hole of the inner fixed ring and compress the spring to obtain elastic force, and when the filter press plate frame loses pressure and separates from each other, the T-shaped spring column can pop out of the inner fixed ring under the support of the spring to contact the filter cloth, so that the mud cake can fall out of the filter cloth.

[0017] Furthermore, the inner fixed ring has a convex surface protruding from the middle of the ring body, and the diameter of the ring hole of the inner fixed ring is the same as the diameter of the column body of the T-shaped elastic column, a tail plate is fixed behind the column body of the T-shaped elastic column, and the diameter of the tail plate of the T-shaped elastic column is larger than the diameter of the ring hole of the inner fixed ring, and the outer ferrule of the column of the T-shaped elastic column has a sealing ring for resisting the inner fixed ring;

[0018] By adopting the above preferred technical solution, the following effects can be achieved: after the filter cloth is sleeved on the outside of the filter press plate frame, the inner fixed ring with a convex ring surface can lift the filter cloth, and then the T-shaped elastic column can be pushed out from the inner fixed ring, and when the T-shaped elastic column is pushed out from the inner fixed ring, the sealing ring can increase the sealing performance of the T-shaped elastic column at the inner fixed ring.

[0019] Furthermore, threaded pipes are fixed at both ends of the pipe opening of the bottom pipe, and the threaded pipe on one side of the bottom pipe is screwed into the bottom of the bottom mounting pipe;

[0020] By adopting the above preferred technical solution, the following effects can be achieved: threaded tubes are arranged at both ends of the bottom connecting pipe, and then the bottom connecting pipe can be screwed to the bottom of the bottom pipe through the threaded tube for connection, and at the same time, the threaded tube at the other end of the bottom connecting pipe can be screwed into the hose connector of the external air supply equipment for connection of air supply.

[0021] Furthermore, a rubber pad is bonded to the surface of the lifting plate between the inclined limiting plates, and the pad thickness of the rubber pad is less than the plate height of the inclined limiting plate;

[0022] By adopting the above preferred technical solution, the following effects can be achieved: the lifting plate between the inclined limiting plates cooperates with the rubber pad to elastically support the filter press frame. The design of the rubber pad improves the friction between the lifting plate and the filter press frame, making the lifting process more stable. The rubber pad has a certain elasticity and can buffer the impact between the lifting plate and the filter press frame, protecting the filter press frame from damage.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention arranges a plate lifting mechanism at the plate pulling trolley of the filter press body, and the plate lifting mechanism and the plate pulling trolley work in coordination to realize automatic lifting and movement of the filter press plate frame during mud removal, and in combination with the driving of the plate pulling trolley, the filter press plate frame can be pulled away, lifted and shaken, and looseness is likely to occur between the filter press plate frame after the filter cloth is sleeved and the river sludge filter press mud cake, which effectively ensures that the river sludge filter press mud cake can be easily shaken off at the filter press plate frame;

[0025] In addition, a blowing plate mechanism is arranged at the filter press plate frame to cooperate with an air transmission mechanism arranged at the lifting plate mechanism. The air transmission mechanism can introduce the gas provided by the external compressor into the blowing plate mechanism for vertical blowing, so that the filter cloth outside the filter press plate frame is blown, and the mud cake outside the auxiliary filter cloth can be loosened, effectively ensuring that the mud cake of the river sludge filter press can be easily shaken off at the filter press plate frame, and at the same time, the residual sludge at the filter cloth is removed;

[0026] The cake-springing mechanism arranged at the conical ribs of the filter press plate frame can accumulate elastic force when the filter press plate frame is filtering the mud. After the filter press plate frame is pulled open by the plate pulling trolley, the spring-supported T-shaped elastic column of the cake-springing mechanism hits the filter cloth outside the filter press plate frame, so that the mud cake can be better separated from the filter cloth after being acted upon by the elastic force, effectively ensuring that the mud cake of river sludge filtering can be easily shaken off at the filter press plate frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The present invention is a schematic diagram of the overall structure of a filter press device for treating river sludge.

[0028] Figure 2 This is a schematic diagram of the disassembly of the plate pulling trolley and plate lifting mechanism of a river sludge treatment filter press device of the present invention.

[0029] Figure 3 This is a schematic diagram of the disassembly of a support plate and a bottom-mounted pipe of a river sludge treatment filter press device of the present invention.

[0030] Figure 4 This is an exploded view of the air transmission mechanism of a river sludge treatment filter press device of the present invention.

[0031] Figure 5 The present invention is a cross-sectional view of a plug-in pipe of a filter press device for treating river sludge.

[0032] Figure 6 This is an exploded view of a plate lifting mechanism of a river sludge treatment filter press device of the present invention.

[0033] Figure 7 This is an exploded view of the blowing plate mechanism of a river sludge treatment filter press device of the present invention.

[0034] Figure 8 The present invention is a cross-sectional view of a U-shaped conduit, an air connecting pipe and a connector of a filter press device for treating river sludge.

[0035] Fig. 9 This is an exploded view of the spring-cake mechanism of a filter press device for treating river sludge according to the present invention.

[0036] In the figure: 1. filter press body; 2. filter press plate frame; 201. round table rib; 3. plate pulling trolley; 4. plate lifting mechanism; 5. air transmission mechanism; 6. plate blowing mechanism; 7. cake springing mechanism; 8. strip plate; 9. support platform; 10. electric push rod; 11. side plate; 12. lifting plate; 13. inclined limit plate; 14. rubber pad; 15. support plate; 16. bottom mounting pipe; 17. bottom connecting pipe; 18. threaded pipe; 19. L-shaped flat pipe; 20. plug-in connecting pipe; 21. vertical guide pipe; 22. fixed groove; 23. cover plate; 24. U-shaped conduit; 25. connecting pipe; 26. socket; 27. U-shaped guide groove; 28. inner ring groove; 29. ​​inner fixed ring; 30. support block; 31. missing groove; 32. bullet hole; 33. spring; 34. T-shaped elastic column; 35. sealing ring. DETAILED DESCRIPTION

[0037] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0038] like Figure 1-9 As shown, a river sludge treatment filter press device includes a filter press body 1, a filter plate frame 2 and a plate pulling trolley 3, the filter plate frame 2 is slidably installed between the frames of the filter press body 1, and the plate pulling trolley 3 for pulling the filter plate frame 2 is installed at the side guide rails of the filter press body 1, and also includes a plate lifting mechanism 4, an air transmission mechanism 5, a plate blowing mechanism 6 and a cake springing mechanism 7, the plate lifting mechanism 4 for supporting the filter plate frame 2 is installed outside the side shell of the plate pulling trolley 3, and the plate lifting mechanism 4 is installed with an air transmission mechanism 5 for active air introduction through a support plate 15, the top of the filter plate frame 2 is provided with a blowing plate mechanism 6 for cooperating with the air transmission mechanism 5 for vertical blowing, and the surface of the filter plate frame 2 is raised with a truncated cone rib 201, and the truncated cone rib 201 is provided with a cake springing mechanism 7 for supporting the mud cake.

[0039] The plate lifting mechanism 4 includes a strip plate 8, a support platform 9, an electric push rod 10, a lifting plate 12 and an inclined limiting plate 13. The strip plate 8 is locked on the outside of the side shell of the plate pulling trolley 3 by bolts, and a support platform 9 is welded on the top of the strip plate 8. An electric push rod 10 is installed under the table groove of the support platform 9, and the telescopic rod of the electric push rod 10 passes through the table groove of the support platform 9 upward. The lifting plate 12 for lifting the filter press plate frame 2 is installed at the telescopic rod head of the electric push rod 10 passing through the support platform 9, and the inclined limiting plates 13 for limiting the filter press plate frame 2 are symmetrically fixed on both sides of the plate body of the lifting plate 12;

[0040] By adopting the above preferred technical solution, the following effects can be achieved. After the strip plate 8 of the lifting mechanism 4 is installed on the plate pulling trolley 3 by bolt locking, the outer side of the strip plate 8 can support the electric push rod 10 through the support platform 9, and then the lifting plate 12 can be installed at the telescopic rod head of the electric push rod 10 passing through the support platform 9. When the plate pulling trolley 3 slides on the side guide rail of the filter press body 1 to pull the filter plate frame 2, the electric push rod 10 can move with it, and then the electric push rod 10 can The lifting plate 12 is pushed to lift and lower, and the lifting plate 12 cooperates with the inclined limiting plate 13 to lift the edge blocks of the filter press frame 2 to lift and lower. At the same time, the two groups of pulling trolleys 3 on both sides of the filter press body 1 can be staggered by a certain distance, so that the filter press frame 2 can be lifted and lowered and shaken, ensuring that the outer side of the filter press frame 2 can shake off the mud cake after the river sludge is filtered after the filter cloth is set, and when the filter press frame 2 is lifted and shaken, the lifting plate 12 has an inclined limiting plate 13 to limit it, which can prevent the filter press frame 2 from falling out.

[0041] The outer shell of the electric push rod 10 is symmetrically welded with a side plate 11, and the side plate 11 is locked with the lower surface of the support platform 9 by bolts, and the telescopic rod head of the electric push rod 10 and the surface of the lifting plate 12 are provided with threaded holes for vertically screwing bolts;

[0042] By adopting the above-mentioned preferred technical solution, the following effects can be achieved. After the side plate 11 is welded to the outer side of the shell of the electric push rod 10, the side plate 11 can be locked under the support platform 9 by bolts to obtain support, and then the lifting plate 12 and the electric push rod 10 can be screwed with bolts for locking connection, thereby ensuring that the electric push rod 10 can push the lifting plate 12 to rise.

[0043] Among them, the lifting plate 12 is welded with a support plate 15 for supporting the gas transmission mechanism 5 outside the arc plate edge away from the inclined limit plate 13. The gas transmission mechanism 5 includes a bottom-mounted pipe 16, a bottom pipe 17, an L-shaped flat pipe 19, a plug-in pipe 20 and a vertical guide pipe 21. The bottom-mounted pipe 16 is welded at the support plate 15, and the bottom pipe 17 is screwed and installed at the lower pipe mouth of the bottom-mounted pipe 16. The bottom-mounted pipe 16 above the support plate 15 is interconnected and welded with the plug-in pipe 20 through the L-shaped flat pipe 19, and the head pipe mouth of the plug-in pipe 20 is interconnected and welded with a vertical guide pipe 21 for cooperating with the blowing plate mechanism 6 for vertical exhaust.

[0044] By adopting the above-mentioned preferred technical solution, the following effects can be achieved. After the support plate 15 is welded at the arc plate edge of the lifting plate 12, the bottom pipe 16 can be inserted and welded at the support plate 15, and the bottom connecting pipe 17 can be installed under the bottom pipe 16 to connect the hose of the external air supply equipment. At the same time, the bottom pipe 16 can be connected to the connecting pipe 20 through the L-shaped flat tube 19. When the electric push rod 10 of the lifting plate mechanism 4 brings the lifting plate and the support plate 15 up, the connecting pipe 20 can cooperate with the vertical guide pipe 21 to be inserted into the seat 26 of the blowing plate mechanism 6 for temporary air supply and downward blowing.

[0045] The blowing plate mechanism 6 includes a fixed groove 22, a cover plate 23, a U-shaped conduit 24, an air connection pipe 25 and a socket 26. The top of the filter press plate frame 2 is symmetrically provided with a fixed groove 22 that communicates with the plate groove, and a cover plate 23 is fixed in the fixed groove 22. A U-shaped conduit 24 is clamped between the cover plate 23 and the fixed groove 22, and the top of the tube body of the U-shaped conduit 24 is welded to the socket 26 through the air connection pipe 25. The side seat surface of the socket 26 is provided with a U-shaped guide groove 27 for clamping the vertical guide pipe 21.

[0046] By adopting the above preferred technical solution, the following effects can be achieved. After the fixing groove 22 of the blowing plate mechanism 6 is set at the filter press plate frame 2, the cover plate 23 can be fixed in the fixing groove 22, and then the U-shaped guide tube 24 can be inserted between the cover plate 23 and the fixing groove 22 for installation, and the socket 26 connected with the air pipe 25 above the U-shaped guide tube 24 is temporarily inserted into the vertical guide tube 21 through the U-shaped guide groove 27 for air supply, so that the compressed gas can enter the filter press plate frame 2 from the U-shaped guide tube 24. If a filter cloth is arranged outside the filter press plate frame 2 for filtering to produce mud cake, the filter cloth can be blown, and the auxiliary mud cake can be better dropped.

[0047] The inner ring groove 28 of the spring mechanism 7 is provided in the truncated cone rib 201 below the fixed groove 22. The spring mechanism 7 includes the inner ring groove 28, the inner fixed ring 29, the support block 30, the notch 31, the bullet hole 32, the spring 33 and the T-shaped spring column 34. The notch 31 is provided between the inner ring groove 28 and the surface of the truncated cone rib 201, and the inner ring groove 28 is clamped with the inner fixed ring 29. The outer protrusion of the inner fixed ring 29 is provided with a support block 30 for clamping into the inner ring groove 28. A bullet hole 32 for clamping the spring 33 is provided between the central groove wall of the inner ring groove 28 and the truncated cone rib 201. A T-shaped spring column 34 for penetrating the inner fixed ring 29 is clamped in the bullet hole 32 on one side of the spring 33.

[0048] By adopting the above preferred technical scheme, the following effects can be achieved. After the inner annular groove 28 and the notch 31 of the cake-springing mechanism 7 are opened at the truncated cone rib 201, the bullet hole 32 can be set at the truncated cone rib 201, and then the spring 33 can be put into the bullet hole 32 from the inner annular groove 28, and then the T-shaped elastic column 34 can be inserted into the bullet hole 32 from the inner annular groove 28 to compress the spring 33, and then the inner fixed ring 29 can be sleeved on the outside of the T-shaped elastic column 34, and then the support block 30 of the inner fixed ring 29 can be inserted into the inner annular groove 28 from the notch 31 for rotation, so that the support block 30 can be transferred into the inner annular groove 28 for stopping retreat, when the filter press plate frame 2 with the filter cloth is sleeved to squeeze the mud cake, the T-shaped elastic column 34 can enter the annular hole of the inner fixed ring 29 and compress the spring 33 to obtain elastic force, and when the filter press plate frame 2 loses pressure and separates from each other, the T-shaped elastic column 34 can be supported by the spring 33 and pop out of the inner fixed ring 29 to resist the filter cloth, so that the mud cake can be removed from the filter cloth.

[0049] The inner fixed ring 29 has a convex surface protruding from the middle of the ring body, and the diameter of the ring hole of the inner fixed ring 29 is the same as the diameter of the column of the T-shaped elastic column 34. A tail plate is fixed behind the column of the T-shaped elastic column 34, and the diameter of the tail plate of the T-shaped elastic column 34 is larger than the diameter of the ring hole of the inner fixed ring 29. The outer sleeve of the column of the T-shaped elastic column 34 has a sealing ring 35 for contacting the inner fixed ring 29.

[0050] By adopting the above preferred technical solution, the following effects can be achieved. After the filter cloth is sleeved on the outside of the filter press plate frame 2, the inner fixed ring 29 with a convex ring surface can lift the filter cloth, and then the T-shaped elastic column 34 can be pushed out from the inner fixed ring 29, and when the T-shaped elastic column 34 is pushed out from the inner fixed ring 29, the sealing ring 35 can increase the sealing performance of the T-shaped elastic column 34 at the inner fixed ring 29.

[0051] Wherein, threaded tubes 18 are fixed at both ends of the tube opening of the bottom tube 17, and the threaded tube 18 on one side of the bottom tube 17 is screwed into the bottom of the bottom mounting tube 16;

[0052] By adopting the above preferred technical solution, the following effects can be achieved: threaded tubes 18 are provided at both ends of the bottom connecting tube 17, and then the bottom connecting tube 17 can be screwed to the bottom of the bottom pipe 16 through the threaded tube 18 for connection, and at the same time, the threaded tube 18 at the other end of the bottom connecting tube 17 can be screwed into the hose connector of the external air supply equipment for connection of air supply.

[0053] The surface of the lifting plate 12 between the inclined limiting plates 13 is bonded with a rubber pad 14, and the pad thickness of the rubber pad 14 is less than the plate height of the inclined limiting plates 13;

[0054] By adopting the above preferred technical solution, the following effects can be achieved. The lifting plate 12 between the inclined limiting plates 13 cooperates with the rubber pad 14 to elastically support the filter press plate frame 2. The design of the rubber pad 14 improves the friction between the lifting plate 12 and the filter press plate frame 2, making the lifting process more stable. The rubber pad 14 has a certain elasticity and can buffer the impact between the lifting plate 12 and the filter press plate frame 2, protecting the filter press plate frame 2 from damage.

[0055] It should be noted that the present invention is a filter press device for treating river sludge, wherein a blowing plate mechanism 6 and a cake-bounce mechanism 7 are arranged at a filter press plate frame 2 of a filter press body 1, and a plate-lifting mechanism 4 is arranged at a plate-pulling trolley 3, and the plate-lifting mechanism 4 supports an air transmission mechanism 5 with a support plate 15;

[0056] The strip-mounted plate 8 of the lifting plate mechanism 4 is installed at the plate-pulling trolley 3 by bolt locking, and the outer side of the strip-mounted plate 8 can support the electric push rod 10 through the support platform 9, and then the lifting plate 12 can be installed at the telescopic rod head of the electric push rod 10 passing through the support platform 9, and the support plate 15 fixed at the lifting plate 12 can be welded with the bottom-mounted pipe 16 of the gas transmission mechanism 5, and after the bottom pipe 17 below the bottom-mounted pipe 16 is connected to the hose of the external gas supply equipment, the L-shaped flat pipe 19 above the bottom-mounted pipe 16 can be connected to the vertical guide pipe 21 through the plug-in pipe 20 for gas supply;

[0057] And the spring 33 of the spring mechanism 7 can be put into the bullet hole 32 from the inner ring groove 28, then the T-shaped spring column 34 can be inserted into the bullet hole 32 from the inner ring groove 28 to compress the spring 33, then the inner fixed ring 29 can be inserted into the outer side of the T-shaped spring column 34, then the support block 30 of the inner fixed ring 29 can be inserted into the inner ring groove 28 from the missing groove 31 to rotate, so that the support block 30 can be rotated into the inner ring groove 28 to stop retreat, the cover plate 23 can be fixed in the fixed groove 22 of the blowing plate mechanism 6, and then the U-shaped guide tube 24 can be inserted between the cover plate 23 and the fixed groove 22 for installation, and the socket 26 connected with the air pipe 25 above the U-shaped guide tube 24 is temporarily inserted into the vertical guide tube 21 through the U-shaped guide groove 27 to supply air;

[0058] Then, the filter press plate frame 2 provided with the cake-bounce mechanism 7 and the blowing plate mechanism 6 can be sleeved with filter cloth, and then the filter press plate frame 2 of the filter press body 1 can be crimped one by one, and then the river sludge paddle is sent into the filter press body 1 by the mud pump, and the anionic (cationic) ion flocculant solution with appropriate concentration added during the mud pumping is mixed with the mud and fully reacted to make the tiny solid particles agglomerate into larger flocculent masses, and then the mud is filtered and pressed at the filter press plate frame 2 sleeved with filter cloth in the filter press body 1. After the sludge reaches the pressing and dehydrating area, the filter press plate frame 2 forms a closed filter chamber under the push of the plate pulling trolley 3. At this time, by applying a certain pressure (such as the pressure of the high-pressure pump), the liquid in the sludge is forced to pass through the filter cloth, and at the same time, the solid particles gradually accumulate on the filter medium to form a mud cake, and then the water pressed out of the filter press plate frame 2 can be discharged downward;

[0059] When the filter plate frame 2 with filter cloth is squeezing the mud cake, the T-shaped spring column 34 can enter the ring hole of the inner fixed ring 29 and compress the spring 33 to obtain the elastic force. After the sludge filtration of the river channel is completed, the hydraulic structure of the filter press body 1 leaves the filter plate frame 2, and the transmission structure of the plate pulling trolley 3 slides on the outside of the filter press body 1. Then, a group of movable plates on the plate pulling trolley 3 hits the edge of the filter plate frame 2 and then drops through and abuts against the edge of the filter plate frame 2. At this time, the two groups of movable plates above the plate pulling trolley 3 can The filter press plate frame 2 is clamped and pulled outward. After the filter press plate frame 2 is pulled to a certain distance and then stopped, the electric push rod 10 can push the lifting plate 12 to rise. At this time, the air transmission mechanism 5 also rises, and then the plate pulling trolley 3 moves to drive the vertical guide pipe 21 of the air transmission mechanism 5 to clamp into the U-shaped guide groove 27 of the receiving seat 26 for blowing. The gas passes through the receiving seat 26 downward into the connecting pipe 25 and then sprays into the groove of the filter press plate frame 2 under the U-shaped guide tube 24. Then the filter cloth outside the filter press plate frame 2 is blown, and the auxiliary mud cake and the filter cloth are loosened;

[0060] When the filter press plate frame 2 loses pressure and separates from each other, the T-shaped elastic column 34 can be supported by the spring 33 and pop out the inner fixed ring 29 to contact the filter cloth, thereby helping the mud cake and the filter cloth to loosen.

[0061] Then the lifting plate 12 continues to rise and cooperates with the rubber pad to lift the filter plate frame 2, so that the vertical guide pipe 21 is upwardly disengaged from the receiving seat 26, and then the lifting plate 12 cooperates with the inclined limiting plate 13 to lift the edge block of the filter plate frame 2 for lifting and lowering. At the same time, the two groups of plate pulling trolleys 3 on both sides of the filter press body 1 can be staggered by a certain distance, so that the filter plate frame 2 can be lifted and lowered and shaken, ensuring that the outer side of the filter plate frame 2 can shake off the mud cake after the river sludge is filtered after being sleeved with the filter cloth, and when the filter plate frame 2 is lifted and shaken, the inclined limiting plate 13 at the lifting plate 12 is limited in the opposite direction, which can prevent the filter plate frame 2 from falling outward, so that the mud cake can fall out from the filter cloth. At this time, the lifting plate 12 can be lowered and leave the filter plate frame 2, and then the plate pulling trolley 3 is in the filter press body. 1, the filter plate frame 2 is pulled away by the side guide rail of 1, and the edge of the hydraulic structure head plate for applying pressure close to the filter press body 1 of another group of movable plates of the plate pulling trolley 3 is pressed down after being stressed. At this time, the plate pulling trolley 3 moves to the subsequent filter press plate frame 2, and the movable plate body after being pressed down can pass through the edge of the first group of filter press plate frames 2 to continue the plate pulling and demuding operation. When the second group of filter press plate frames 2 and subsequent filter press plate frames 2 are demudged, the plate pulling trolley 3 can obtain the downward pressure passing force at the edges of the filter press plate frames 2 and subsequent filter press plate frames 2 after the first group of demud, thereby ensuring that the plate pulling trolley 3 can pass through the edges of the filter press plate frames 2 after demudding to perform the plate pulling operation, and the components of the cake springing mechanism 7 can be regularly maintained and cleaned to ensure its normal operation.

[0062] It should be noted that the present invention is a filter press device for treating river sludge, and the components in the present invention are all components known to those skilled in the art, and their structures and principles are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0063] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A filter press device for treating river sludge, comprising a filter press body (1), a filter press plate frame (2) and a plate pulling trolley (3), wherein the filter press plate frame (2) is slidably mounted between the frames of the filter press body (1), and a plate pulling trolley (3) for pulling the filter press plate frame (2) is mounted on the side guide rails of the filter press body (1), characterized in that: It also includes a plate lifting mechanism (4), an air transmission mechanism (5), a plate blowing mechanism (6) and a cake-bounce mechanism (7); a plate lifting mechanism (4) for supporting the filter plate frame (2) is installed outside the side shell of the plate pulling trolley (3); an air transmission mechanism (5) for active air intake is installed at the plate lifting mechanism (4) through a support plate (15); a plate blowing mechanism (6) for cooperating with the air transmission mechanism (5) for vertical air blowing is arranged at the top of the filter plate frame (2); a truncated cone rib (201) is raised on the surface of the filter plate frame (2); and a cake-bounce mechanism (7) for supporting the mud cake is arranged at the truncated cone rib (201).

2. A filter press device for treating river sludge according to claim 1, characterized in that: The plate lifting mechanism (4) comprises a strip plate (8), a support platform (9), an electric push rod (10), a lifting plate (12) and an inclined limiting plate (13); the strip plate (8) is fastened to the outside of the side shell of the plate pulling trolley (3) by bolts, and a support platform (9) is welded to the top of the strip plate (8); an electric push rod (10) is installed below the platform groove of the support platform (9), and the telescopic rod of the electric push rod (10) passes through the platform groove of the support platform (9) upward; the lifting plate (12) for lifting the filter press plate frame (2) is installed at the telescopic rod head of the electric push rod (10) passing through the support platform (9), and the inclined limiting plates (13) for limiting the filter press plate frame (2) are symmetrically fixed on both sides of the plate body of the lifting plate (12).

3. A filter press device for treating river sludge according to claim 2, characterized in that: The outer shell of the electric push rod (10) is symmetrically welded with a side plate (11), and the side plate (11) is locked with the lower surface of the support platform (9) by bolts. The telescopic rod head of the electric push rod (10) and the surface of the lifting plate (12) are provided with threaded holes for vertically screwing bolts.

4. A filter press device for treating river sludge according to claim 3, characterized in that: A support plate (15) for supporting an air transmission mechanism (5) is welded outside the arc plate edge of the lifting plate (12) away from the inclined limiting plate (13). The air transmission mechanism (5) comprises a bottom-mounted pipe (16), a bottom pipe (17), an L-shaped flat pipe (19), a plug-in pipe (20) and a vertical guide pipe (21). The support plate (15) is welded with a bottom-mounted pipe (16), and the bottom pipe (17) is screwed and installed at the lower pipe mouth of the bottom-mounted pipe (16). The bottom-mounted pipe (16) above the support plate (15) is interconnected and welded with the plug-in pipe (20) through the L-shaped flat pipe (19), and a vertical guide pipe (21) for cooperating with the blowing plate mechanism (6) to perform vertical exhaust is interconnected and welded at the head pipe mouth of the plug-in pipe (20).

5. A filter press device for treating river sludge according to claim 4, characterized in that: The blowing plate mechanism (6) comprises a fixed groove (22), a cover plate (23), a U-shaped conduit (24), an air connection pipe (25) and a connection seat (26); the top of the filter press plate frame (2) is symmetrically provided with a fixed groove (22) which is interconnected with the plate groove, and a cover plate (23) is fixed in the fixed groove (22); a U-shaped conduit (24) is clamped between the cover plate (23) and the fixed groove (22); the top of the tube body of the U-shaped conduit (24) is welded to the connection seat (26) through the air connection pipe (25); and a U-shaped guide groove (27) for clamping the vertical guide pipe (21) is provided on the side seat surface of the connection seat (26).

6. A filter press device for treating river sludge according to claim 5, characterized in that: An inner ring groove (28) of a spring mechanism (7) is provided in the truncated cone rib (201) below the fixed groove (22). The spring mechanism (7) comprises an inner ring groove (28), an inner fixed ring (29), a support block (30), a notch (31), a spring hole (32), a spring (33) and a T-shaped spring column (34). The notch of the inner ring groove (28) and the surface of the truncated cone rib (201) are provided with a notch (31). An inner fixed ring (29) is inserted into the annular groove (28); a support block (30) for inserting into the inner annular groove (28) is protruded from the outer ring body of the inner fixed ring (29); a spring hole (32) for inserting a spring (33) is provided between the central groove wall of the inner annular groove (28) and the truncated cone rib (201); a T-shaped spring column (34) for passing through the inner fixed ring (29) is inserted into the spring hole (32) on one side of the spring (33).

7. A filter press device for treating river sludge according to claim 6, characterized in that: The inner fixed ring (29) has a convex ring surface protruding from the middle of the ring body, and the diameter of the ring hole of the inner fixed ring (29) is the same as the diameter of the column body of the T-shaped elastic column (34). A tail plate is fixed behind the column body of the T-shaped elastic column (34), and the diameter of the tail plate of the T-shaped elastic column (34) is larger than the diameter of the ring hole of the inner fixed ring (29). The outer sleeve of the column of the T-shaped elastic column (34) has a sealing ring (35) for resisting the inner fixed ring (29).

8. A filter press device for treating river sludge according to claim 7, characterized in that: Threaded pipes (18) are fixed at both ends of the pipe opening of the bottom pipe (17), and the threaded pipe (18) on one side of the bottom pipe (17) is screwed into the bottom of the bottom mounting pipe (16).

9. A filter press device for treating river sludge according to claim 8, characterized in that: A rubber pad (14) is bonded to the surface of the lifting plate (12) between the inclined limiting plates (13), and the pad thickness of the rubber pad (14) is smaller than the plate height of the inclined limiting plates (13).

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