Mud block discharging structure for filter press

Abstract

The utility model discloses a clod unloading structure for a filter press, which relates to the technical field of unloading structures of filter presses, and comprises a rack, the top of one end of the rack is fixedly connected with a pressing device, the top of the other end of the rack is fixedly connected with a thrust plate, one end of the thrust plate is fixedly connected with a reflux pipeline, and the other end of the thrust plate is fixedly connected with a discharge pipeline. The center of the outer wall of one section of the thrust plate is fixedly connected with a feeding pipeline, the top end of the rack is movably connected with a plurality of filter plates, the adjacent filter plates are directly and movably connected with filter residue mud blocks, the bottom end in the rack is fixedly connected with a conveying belt, the middle in the rack is fixedly connected with a hopper, and the side wall of the top end of the rack is movably connected with a push rod. According to the filter press disclosed by the utility model, the inside of the filter plate is inflated, so that filtrate is compressed by the diaphragm, and after filter pressing is completed, filter residue clods are automatically peeled off through expansion of the diaphragm.

Description

Technical Field

[0001] The utility model relates to the technical field of filter press unloading structures, in particular to a mud block unloading structure for a filter press. Background Art

[0002] The filter press uses a special filter medium to exert a certain pressure on an object, causing the liquid to seep out. It is a commonly used solid-liquid separation equipment. It was used in chemical production in the early 18th century and is still widely used in chemical, pharmaceutical, metallurgical, dye, food, brewing, ceramics and environmental protection industries.

[0003] In the prior art, when a filter press is used for solid-liquid separation, a filter cake squeezed by filtered impurities will be formed between the filter plates. After the filtration is completed, the filter plates need to be pulled apart for unloading. However, the filter cake is easily adhered to the filter plates due to the extrusion, and the filter cake is difficult to fall off automatically under the action of gravity. The filter cake attached to the filter plates needs to be cleaned manually using tools, which is time-consuming and labor-intensive. Moreover, only large pieces of filter cake in the filter plates can be removed manually, and smaller attached filter cake residues are difficult to remove, which will reduce the filtration effect during subsequent filtration. Utility Model Content

[0004] The purpose of the utility model is to make up for the deficiencies of the prior art and to provide a mud block unloading structure for a filter press.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a mud block unloading structure for a filter press, comprising a frame, a clamping device is fixedly connected to the top of one end of the frame, a thrust plate is fixedly connected to the top of the other end of the frame, one end of the thrust plate is fixedly connected to a return pipe, a feed pipe is fixedly connected to the center of an outer wall of a section of the thrust plate, a plurality of filter plates are movably connected to the top of the frame, filter residue mud blocks are directly and movably connected to adjacent filter plates, a conveyor belt is fixedly connected to the bottom end of the frame, a hopper is fixedly connected to the middle of the frame, a push rod is movably connected to the side wall of the top of the frame, and an inflation pipe is fixedly connected to the outer wall on the same side of the frame and the push rod.

[0006] As mentioned above, the top of the filter plate is fixedly connected to a limiting rod, both ends of the limiting rod are respectively fixedly connected to a slot, the slot is movably sleeved on the top of the frame, a material hole is opened in the center of the side wall of the filter plate, a reflux hole is opened at the corner of the side wall of the filter plate, and one end of the limiting rod is fixedly connected to a top rod.

[0007] As mentioned above, an air cavity is opened inside the filter plate, and a diaphragm is fixedly connected to the two side walls of the filter plate, and the diaphragm is made of elastic material. The bottom end of the side wall of the filter plate is fixedly connected to an air inlet pipe, and the air inlet pipe is an elastic hose. The other end of the air inlet pipe is fixedly connected to the outer wall of the inflation pipe. When the compression filtration is completed, the diaphragm is expanded by inflation, thereby peeling off the filter residue mud.

[0008] In the above-mentioned, a slide groove is provided inside the bottom end of the push rod, and a slide rail is slidably connected to the center of the inner wall of the slide groove, and the slide rail is fixedly connected to the side wall of the frame. A push pin is rotatably connected inside the top end of the push rod, and a spring is fixedly connected to the bottom end of the push pin. The bottom end of the spring is in conflict with the inner wall of the push rod, and the top end of the spring is in contact with the bottom end surface of the push pin. The outer wall of the top end of the push pin is movably connected to the outer wall of the push rod, and the filter plate position can be moved unidirectionally by the push rod.

[0009] As mentioned above, the top of the hopper is covered on the bottom of the filter plate, the bottom of the hopper is fixedly connected with a bracket, both ends of the bracket are welded to the inner wall of the frame, the bottom of the bracket is fixedly connected with a material baffle plate, the material baffle plate is aligned with the conveyor belt and suspended on the upper surface of the conveyor belt.

[0010] As mentioned above, a telescopic cylinder is movably connected to the center of the clamping device, one end of the telescopic cylinder is fixedly connected to a clamping plate, and the outer wall of the clamping plate contacts the side wall of the filter plate.

[0011] As mentioned above, a feed port is opened at the center of the side wall of the thrust plate, and the feed port is fixedly connected to one end of the feed pipe. A plurality of through holes are opened at the corner of the side wall of the thrust plate, and the through holes are aligned with the reflux holes. A reflux pipe is sleeved at one end of the through holes, and one side wall of the thrust plate is movably connected to the side wall of the filter plate.

[0012] Compared with the prior art, the mud block unloading structure for the filter press has the following beneficial effects:

[0013] 1. The utility model arranges a plurality of filter plates at the top of the frame, an air cavity is arranged inside the filter plate, an elastic diaphragm is arranged on the inner wall of the filter plate, and an inflation pipe is connected to the bottom of the filter plate. When the compression filtration reaches a certain time during the pressure filtration operation, the pressing device is released, and the top rod at the top of the filter plate is fluctuated by the push rod to adjust the distance between the filter plates, and then the diaphragm is expanded by inflation, so that the filter residue mud blocks formed between the filter plates are automatically peeled off.

[0014] 2. The utility model has a hopper fixedly connected to the bottom end of the filter plate to ensure that the filter residue mud blocks will not splash after inflation and fall into the hopper. A baffle plate is fixedly connected to the bottom end of the hopper so that the filter residue mud blocks in the hopper fall into the range of the conveyor belt when they fall off, ensuring the centralized collection of the filter residue mud blocks.

[0015] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and study, or may be taught from the practice of the present invention to some extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the three-dimensional structure axonometric of the utility model;

[0018] Figure 3 It is a side view of the utility model in the unloading state;

[0019] Figure 4 For this utility model Figure 1 A is a partial enlarged schematic diagram;

[0020] Figure 5 It is a semi-axonometric cross-sectional schematic diagram of the filter plate of the utility model;

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the thrust plate of the utility model.

[0022] In the figure: 1. frame; 2. clamping device; 201. telescopic cylinder; 202. clamping plate; 3. thrust plate; 301. feed port; 4. reflux pipe; 5. feed pipe; 6. filter plate; 601. limit rod; 602. slot; 603. material hole; 604. reflux hole; 605. ejector rod; 606. air cavity; 607. diaphragm; 608. air inlet pipe; 7. filter residue; 8. conveyor belt; 9. hopper; 901. bracket; 902. baffle plate; 10. push rod; 101. slide groove; 102. slide rail; 103. ejector pin; 104. spring; 11. inflation pipe. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] like Figure 1-6 As shown, the utility model provides a technical solution: a mud block unloading structure for a filter press, comprising a frame 1, a clamping device 2 is fixedly connected to the top of one end of the frame 1, a thrust plate 3 is fixedly connected to the top of the other end of the frame 1, a reflux pipe 4 is fixedly connected to one end of the thrust plate 3, a feed pipe 5 is fixedly connected to the center of the outer wall of one end of the thrust plate 3, a plurality of filter plates 6 are movably connected to the top of the frame 1, filter residue mud blocks 7 are directly and movably connected to adjacent filter plates 6, a conveyor belt 8 is fixedly connected to the bottom end of the frame 1, a hopper 9 is fixedly connected to the middle of the frame 1, a push rod 10 is movably connected to the side wall of the top of the frame 1, and an inflation pipe 11 is fixedly connected to the outer wall on the same side of the frame 1 and the push rod 10.

[0025] Utilizing the overall structure of the device, when performing compression filtration operations, the device is connected to the pneumatic and electric control systems of the workshop respectively, and then a suitable number of filter plates 6 are placed on the top of the frame 1 according to process requirements. The clamping device 2 is started by the pneumatic system to make adjacent filter plates 6 fit tightly together. When the specified pressure is reached, the movement of the clamping device 2 is stopped to maintain the clamping state, and then the control system is operated to infuse the raw material liquid between the filter plates 6 through the feed pipe 5. After the raw material liquid is infused, the clamping state is maintained, and the liquid is extracted through the reflux pipe 4 to accelerate the filtration process. After the filtration operation is completed, the clamping device 2 is closed and retreated through the control system, and then the push rod 10 is controlled to push the filter plates 6 to the appropriate position one by one, and the filter plates 6 are inflated through the inflation pipe 11, so that the filter residue mud blocks 7 are automatically peeled off into the hopper 9, and then the filter residue mud blocks 7 in the hopper 9 are transported by the conveyor belt 8.

[0026] like Figure 1-5 As shown, the top of the filter plate 6 is fixedly connected to a limit rod 601, and both ends of the limit rod 601 are respectively fixedly connected to a slot 602, and the slot 602 is movably sleeved on the top of the frame 1. A material hole 603 is opened in the center of the side wall of the filter plate 6, and a reflux hole 604 is opened at the corner of the side wall of the filter plate 6. One end of the limit rod 601 is fixedly connected to a push rod 605, and an air cavity 606 is opened inside the filter plate 6. The two side walls of the filter plate 6 are fixedly connected to a diaphragm 607, and the diaphragm 607 is made of elastic material. The bottom end of the side wall of the filter plate 6 is fixedly connected to an air inlet pipe 608, and the air inlet pipe 608 is an elastic hose. The other end of the air inlet pipe 608 is fixedly connected to the outer wall of the inflation pipe 11.

[0027] When the device is performing a filter press operation, the raw material liquid passes through the material hole 603 into each filter plate 6, and then forms filter residue mud blocks 7 between the diaphragms 607. The adjacent reflux holes 604 form a reflux channel, and the filtrate is extracted through the reflux pipe 4 to accelerate the speed of compression filtration. The air filling operation is performed through the inflation pipe 11, and the air flow enters the air cavity 606 of the filter plate 6 through the air inlet pipe 608. Under the action of air pressure, the diaphragm 607 made of elastic material begins to expand, so that the filter residue mud blocks 7 adhered between adjacent filter plates 6 begin to harden, and then after the filter plates 6 are separated, the filter residue mud blocks 7 can be automatically peeled off from the surface of the diaphragm 607.

[0028] like Figure 1-5As shown, a slide groove 101 is opened inside the bottom end of the push rod 10, and a slide rail 102 is slidably connected to the center of the inner wall of the slide groove 101, and the slide rail 102 is fixedly connected to the side wall of the frame 1. A ejector pin 103 is rotatably connected to the top of the push rod 10, and a spring 104 is fixedly connected to the bottom end of the ejector pin 103. The bottom end of the spring 104 is in conflict with the inner wall of the push rod 10, and the top of the spring 104 is in contact with the bottom end surface of the ejector pin 103. The outer wall of the top end of the ejector pin 103 is movably connected to the outer wall of the ejector rod 605, and the top end of the hopper 9 is covered on the bottom end of the filter plate 6. The bottom end of the hopper 9 is fixedly connected to a bracket 901, and both ends of the bracket 901 are welded to the inner wall of the frame 1. The bottom end of the bracket 901 is fixedly connected to a material baffle plate 902, which is aligned with the conveyor belt 8 and is suspended on the upper surface of the conveyor belt 8.

[0029] When the filter pressing process is completed, first shut down the clamping device 2 and retreat the clamping device 2 to a suitable position, then control the push rod 10 to slide along the slide rail 102 through the control system, and when the ejector pin 103 of the push rod 10 hits the outer wall of the ejector pin 605 of the filter plate 6, the spring 104 is pulled under the action of the rigid force, and the ejector pin 103 rotates downward until the ejector pin 103 crosses the ejector pin 605, and then the ejector pin 605 can be hooked to slide unidirectionally along the slide rail 102, thereby separating the filter plate 6 after the compression filtration process. After the filter pressing process is completed, the filter residue mud 7 is collected through the hopper 9 and falls onto the conveyor belt 8 for transportation under the limit of the baffle plate 902.

[0030] like Figure 1-6 As shown, a telescopic cylinder 201 is movably connected to the center position of the clamping device 2, and a clamping plate 202 is fixedly connected to one end of the telescopic cylinder 201. The outer wall of the clamping plate 202 touches the side wall of the filter plate 6. A feed port 301 is opened in the center of the side wall of the thrust plate 3. The feed port 301 is fixedly connected to one end of the feed pipe 5. A plurality of through holes are opened at the corners of the side wall of the thrust plate 3. The through holes are aligned with the reflux hole 604. A reflux pipe 4 is sleeved on one end of the through hole. One side wall of the thrust plate 3 is movably connected to the side wall of the filter plate 6.

[0031] Before the compression filtration process, the clamping device 2 is connected to the pneumatic system, and then the telescopic cylinder 201 is controlled to extend and retract through the control system, so that the clamping plate 202 is held against the side wall of the first filter plate 6 and continuously pushed forward. The pressure between the adjacent filter plates 6 is ensured by clamping the clamping plate 202 and the thrust plate 3, and the raw material liquid is poured through the feed pipe 5.

[0032] Working principle: Utilizing the overall structure of the device, when performing compression filtration operation, the device is connected to the pneumatic and electric control systems of the workshop respectively, and then a suitable number of filter plates 6 are placed on the top of the frame 1 according to the process requirements. The pressing device 2 is started through the pneumatic system to make the adjacent filter plates 6 fit tightly together. When the specified pressure is reached, the movement of the pressing device 2 is stopped to maintain the pressing state, and then the control system is operated to infuse the raw material liquid between the filter plates 6 through the feed pipe 5. After the raw material liquid is infused, the pressing state is maintained, and the liquid is extracted through the reflux pipe 4 to accelerate the filtration process. After the filtration operation is completed, the control system is closed and then The pressing device 2 is withdrawn, and then the push rod 10 is controlled to push the filter plates 6 to the appropriate position one by one, and the filter plates 6 are inflated through the inflation pipe 11, so that the filter residue mud 7 is automatically peeled off into the hopper 9, and then the filter residue mud 7 in the hopper 9 is transported through the conveyor belt 8. When the device performs the pressure filtration operation, the raw material liquid penetrates into each filter plate 6 along the material hole 603, and then the filter residue mud 7 is formed between the diaphragm 607. The adjacent reflux holes 604 form a reflux channel, and the filtrate is extracted through the reflux pipe 4 to accelerate the speed of compression filtration. The gasification operation is performed through the inflation pipe 11, and the airflow enters the filter plate 6 through the inlet pipe 608 Inside the air cavity 606, under the action of air pressure, the diaphragm 607 made of elastic material begins to expand, so that the filter residue mud 7 adhered between the adjacent filter plates 6 begins to harden, and then after the filter plates 6 are separated, the filter residue mud 7 can be automatically peeled off from the surface of the diaphragm 607. When the filter pressing process is completed, the pressing device 2 is first turned off and the pressing device 2 is retreated to a suitable position, and then the push rod 10 is controlled by the control system to slide along the slide rail 102. When the ejector pin 103 of the push rod 10 hits the outer wall of the ejector pin 605 of the filter plate 6, the spring 104 is pulled under the action of rigid force, and the ejector pin 103 rotates downward until the ejector pin 103 crosses The push rod 605 can then be hooked to slide unidirectionally along the slide rail 102, thereby separating the filter plates 6 after the compression filtration process. After the compression filtration process is completed, the filter residue mud 7 is collected by the hopper 9 and falls on the conveyor belt 8 under the limit of the baffle plate 902 for transportation. Before the compression filtration process, the clamping device 2 is connected to the pneumatic system, and then the telescopic cylinder 201 is controlled to be extended and retracted through the control system, so that the clamping plate 202 is supported on the side wall of the first filter plate 6 and continuously pushed forward. The pressure between the adjacent filter plates 6 is ensured by clamping the clamping plate 202 and the thrust plate 3, and the raw material liquid is poured through the feed pipe 5.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mud block unloading structure for a filter press, comprising a frame (1), characterized in that: A clamping device (2) is fixedly connected to the top of one end of the frame (1), a thrust plate (3) is fixedly connected to the top of the other end of the frame (1), a return pipe (4) is fixedly connected to one end of the thrust plate (3), a feed pipe (5) is fixedly connected to the center of a section of the outer wall of the thrust plate (3), a plurality of filter plates (6) are movably connected to the top of the frame (1), and filter residue mud blocks (7) are directly movably connected to adjacent filter plates (6), a conveyor belt (8) is fixedly connected to the bottom end of the frame (1), a hopper (9) is fixedly connected to the middle of the frame (1), a push rod (10) is movably connected to the side wall of the top of the frame (1), and an inflation pipe (11) is fixedly connected to the outer wall on the same side of the frame (1) and the push rod (10).

2. The mud block unloading structure for a filter press according to claim 1, characterized in that: The top of the filter plate (6) is fixedly connected to a limiting rod (601), and both ends of the limiting rod (601) are respectively fixedly connected to a clamping groove (602), and the clamping groove (602) is movably sleeved on the top of the frame (1). A material hole (603) is provided at the center of the side wall of the filter plate (6), and a return hole (604) is provided at the corner of the side wall of the filter plate (6). One end of the limiting rod (601) is fixedly connected to a top rod (605).

3. The mud block unloading structure for a filter press according to claim 2, characterized in that: An air cavity (606) is provided inside the filter plate (6), and a diaphragm (607) is fixedly connected to both side walls of the filter plate (6), and the diaphragm (607) is made of elastic material. An air intake pipe (608) is fixedly connected to the bottom end of the side wall of the filter plate (6), and the air intake pipe (608) is an elastic hose. The other end of the air intake pipe (608) is fixedly connected to the outer wall of the inflation pipe (11).

4. The mud block unloading structure for a filter press according to claim 1, characterized in that: A slide groove (101) is provided inside the bottom end of the push rod (10), and a slide rail (102) is slidably connected to the center of the inner wall of the slide groove (101), and the slide rail (102) is fixedly connected to the side wall of the frame (1). A push pin (103) is rotatably connected inside the top end of the push rod (10), and a spring (104) is fixedly connected to the bottom end of the push pin (103). The bottom end of the spring (104) contacts the inner wall of the push rod (10), and the top end of the spring (104) contacts the bottom end surface of the push pin (103). The outer wall of the top end of the push pin (103) is movably connected to the outer wall of the push rod (605).

5. The mud block unloading structure for a filter press according to claim 1, characterized in that: The top end of the hopper (9) is covered on the bottom end of the filter plate (6); the bottom end of the hopper (9) is fixedly connected to a bracket (901); both ends of the bracket (901) are welded to the inner wall of the frame (1); the bottom end of the bracket (901) is fixedly connected to a material baffle plate (902); the material baffle plate (902) is aligned with the conveyor belt (8) and is suspended above the upper surface of the conveyor belt (8).

6. The mud block unloading structure for a filter press according to claim 1, characterized in that: The center position of the clamping device (2) is movably connected to a telescopic cylinder (201), one end of the telescopic cylinder (201) is fixedly connected to a clamping plate (202), and the outer wall of the clamping plate (202) contacts the side wall of the filter plate (6).

7. The mud block unloading structure for a filter press according to claim 1, characterized in that: A feed port (301) is provided at the center of the side wall of the thrust plate (3), and the feed port (301) is fixedly connected to one end of the feed pipe (5). A plurality of through holes are provided at the corners of the side wall of the thrust plate (3), and the through holes are aligned with the return holes (604). A return pipe (4) is sleeved at one end of the through holes. One side wall of the thrust plate (3) is movably connected to the side wall of the filter plate (6).

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