A feeding and discharging mechanism for a high-pressure dewatering machine

Abstract

This utility model relates to a feeding and discharging mechanism for a high-pressure dewatering machine, applied in the field of high-pressure dewatering technology. It includes a frame, a chain conveyor, an upper cloth winding module, a lower cloth winding module, an upper filter cloth, a lower filter cloth, a sludge cloth hopper, a cloth inlet, a width limiting plate, and a turning roller. During feeding into the high-pressure dewatering machine, the sludge cloth hopper is filled with the material to be dewatered, and the material is evenly discharged from the cloth inlet. The lower filter cloth is pre-laid on top of the chain conveyor, and then the upper filter cloth covers the top of the material to be dewatered, forming an assembly of upper filter cloth, material, and lower filter cloth on the chain conveyor. This facilitates the chain conveyor feeding the material into the high-pressure dewatering machine, effectively preventing the loose material from affecting the dewatering effect. Furthermore, the assembly of upper filter cloth, material, and lower filter cloth can be easily removed from the high-pressure dewatering machine in reverse, facilitating the removal of the dewatered material and effectively improving the feeding and discharging efficiency of the high-pressure dewatering machine.

Description

Technical Field

[0001] This utility model relates to a feeding and discharging mechanism, and in particular to a feeding and discharging mechanism for a high-pressure dehydrator applied in the field of high-pressure dehydration technology. Background Technology

[0002] Sludge dewatering is a key step in reducing the moisture content of sludge to achieve volume reduction and resource utilization. High-pressure dewatering of materials includes dewatering processes and equipment such as plate and frame filter press, high-pressure belt conveyor, and stacked filter press. High-pressure stacked filter press has been recognized by the market as a high-pressure and efficient dewatering method. For example, Chinese patent CN111111293A discloses a material dewatering machine with continuous feeding and discharging and adjustable pressure, which dewaters the material by squeezing it from top to bottom.

[0003] However, due to factors such as low automation of feeding and discharging in stacked filter presses, requiring manual intervention, or the use of conveyor belts for automatic feeding, for example, Chinese patent CN222975475U discloses a feeding device for a dewatering machine that uses a conveyor belt for material feeding. However, the conveyor belt feeding method can only solve the material feeding operation, but it is inconvenient to discharge and remove the dewatered material. In addition, the material directly transported on the conveyor belt is relatively loose, which affects the high-pressure dewatering, i.e., the filter press dewatering operation. The high-pressure dewatering machine has a low degree of fully automated control. Utility Model Content

[0004] The technical problem to be solved by this utility model in view of the above-mentioned prior art is that the material feeding and discharging efficiency of existing high-pressure dewatering machines is low, which affects the automation efficiency of the high-pressure dewatering machines.

[0005] To solve the above problems, this utility model provides a feeding and discharging mechanism for a high-pressure dewatering machine, including a frame, a chain conveyor fixedly connected to the middle of the frame, an upper cloth winding module fixedly connected to one end of the top of the frame, and a lower cloth winding module fixedly connected to the other end of the bottom of the frame. The upper cloth winding module and the lower cloth winding module are used to load and unload the upper filter cloth and the lower filter cloth, respectively. The lower filter cloth is laid flat on the top of the chain conveyor, and one end of the lower filter cloth is fixedly connected to one end of the upper filter cloth. A sludge feeding hopper is fixedly connected to the top center of the frame. A feeding port is fixedly connected to the bottom end of the sludge feeding hopper. The feeding port is parallel to the top of the chain conveyor. Width-limiting plates are fixedly connected to both ends of the feeding port. A turning roller is rotatably connected between the tops of the width-limiting plates. The upper filter cloth is rotatably connected to the turning roller.

[0006] In the feeding and discharging mechanism of the aforementioned high-pressure dewatering machine, an upper filter cloth, material, and lower filter cloth assembly are formed on the chain conveyor, which facilitates the conveying of the material into the high-pressure dewatering equipment.

[0007] As a further improvement of this application, a thickness adjustment plate is inserted between the two width limiting plates. The thickness adjustment plate is slidably connected to the top of the fabric opening. The thickness adjustment plate is used to limit the height of the fabric opening, so that the material is laid flat on the lower filter cloth with a specified thickness.

[0008] As a further improvement of this application, the upper winding module consists of an upper winding roller and an upper flattening roller, and the lower winding module consists of a lower winding roller and a lower flattening roller. The upper winding roller and the lower winding roller respectively perform the release and rewinding operations of the upper filter cloth and the lower filter cloth, and the upper flattening roller and the lower flattening roller effectively improve the flattening effect of the upper filter cloth and the lower filter cloth.

[0009] As a further improvement of this application, both the left and right ends of the upper and lower cloth winding rollers are fixedly connected to the frame by safety clamps. The safety clamps enable the upper and lower cloth winding rollers to be detachably installed, facilitating the disassembly and cleaning of the upper and lower filter cloths.

[0010] As a further improvement of this application, the lower filter cloth module also includes a desliming roller. A material scraper is fixedly connected to the outside of the desliming roller. The lower filter cloth passes between the desliming roller and the material scraper. When the lower filter cloth carries the dewatered material to the desliming roller, the material scraper is used to realize the automatic separation of the lower filter cloth and the dewatered material.

[0011] As a further improvement of this application, bearing modules are rotatably connected to both ends of the turning roller, the bearing modules are slidably connected to the width limiting plate, and a tension spring is fixedly connected between the bearing modules and the sludge cloth hopper. The tension spring is used to buffer the turning roller when the upper filter cloth is taut, effectively reducing the damage to the upper filter cloth.

[0012] As a further improvement of this application, the bottom of the upper cloth winding module is rotatably connected to a stop shaft. Both ends of the stop shaft are fixedly embedded with stop blocks. The stop blocks roll in contact with the left and right edges of the upper filter cloth. The stop shaft uses the stop blocks to make regular contact with the upper filter cloth, so as to achieve short pauses in the transmission of the upper filter cloth, thereby achieving the effect of separating the upper filter cloth from the dewatered material and effectively reducing the adhesion between the dewatered material and the upper filter cloth.

[0013] As a further improvement of this application, the brake block is arranged in a fan shape and is made of stainless steel. Wear-resistant belts are fixedly bonded to the left and right edges of the upper filter cloth. The wear-resistant belts are made of wear-resistant rubber material, which effectively improves the frictional contact effect between the brake block and the wear-resistant belt, and effectively improves the wear resistance of the brake block and the wear-resistant belt.

[0014] As a further improvement of this application, a linkage wheel is rotatably connected to one end of the stop shaft, a drive wheel is fixedly connected to one end of the upper fabric roll, a transmission belt is rotatably connected between the linkage wheel and the drive wheel, a plug pin is inserted into the outside of the linkage wheel, a plug seat is fixedly connected to the outside of the stop shaft, the plug pin is inserted into the plug seat, and the linkage wheel and the drive wheel are driven by the transmission belt, so that the stop shaft rotates synchronously with the upper fabric roll.

[0015] In summary, when feeding the high-pressure dewatering machine, the sludge feeding hopper of this invention is filled with the material to be dewatered. The material is evenly discharged from the feeding port and accurately falls on the top of the chain conveyor. The top of the chain conveyor is pre-laid with a lower filter cloth, and then the upper filter cloth is placed on top of the material to be dewatered. This creates a combination of upper filter cloth, material, and lower filter cloth on the chain conveyor, which facilitates the chain conveyor to feed the material into the high-pressure dewatering machine. This effectively avoids the material's looseness affecting the dewatering effect. Furthermore, the combination of upper filter cloth, material, and lower filter cloth can be easily removed from the high-pressure dewatering machine in reverse, effectively improving the feeding and discharging efficiency of the high-pressure dewatering machine. Attached Figure Description

[0016] Figure 1 This is an overall structural diagram of the first embodiment of this application; Figure 2 This is a structural diagram of the fabric rolling module according to the first embodiment of this application; Figure 3 This is a structural diagram of the fabric rolling module according to the first embodiment of this application; Figure 4 This is a perspective view of the upper fabric winding roller according to the first embodiment of this application; Figure 5 This is a cross-sectional view of the sludge distribution bin according to the first embodiment of this application; Figure 6 This is a three-dimensional structural diagram of the sludge distribution bin according to the first embodiment of this application; Figure 7 This diagram illustrates the blocking effect of the blocking shaft on the upper filter cloth according to the second embodiment of this application. Figure 8 This is a perspective view of the upper filter cloth and its structure according to the second embodiment of this application. Figure 9 This is a side view of the linkage wheel, drive wheel, and transmission belt according to the second embodiment of this application; Figure 10 This is a three-dimensional structural diagram of the linkage wheel, the insertion pin, and the insertion socket according to the second embodiment of this application.

[0017] Explanation of the labels in the diagram: 1. Frame; 101. Chain conveyor; 102. Upper cloth winding module; 103. Lower cloth winding module; 104. Upper filter cloth; 105. Lower filter cloth; 106. Upper cloth winding roller; 107. Upper flattening roller; 108. Lower cloth winding roller; 109. Lower flattening roller; 110. Safety clamp; 111. Desliming roller; 112. Material scraper; 2. Sludge feeding bin; 201. Feeding port; 202. Width limiting plate; 203. Thickness adjusting plate; 3. Turning roller; 301. Bearing module; 302. Tension spring; 4. Stop shaft; 401. Braking block; 402. Wear-resistant belt; 403. Linkage wheel; 404. Drive wheel; 405. Transmission belt; 406. Insertion pin; 407. Insertion seat. Detailed Implementation

[0018] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0019] First implementation method: Figures 1 to 6 The diagram shows a high-pressure dewatering machine's feeding and discharging mechanism, including a frame 1. A chain conveyor 101 is fixedly connected to the middle of the frame 1. An upper fabric winding module 102 is fixedly connected to one end of the top of the frame 1, and a lower fabric winding module 103 is fixedly connected to the other end of the bottom of the frame 1. The upper fabric winding module 102 and the lower fabric winding module 103 are used to wind up and unwind an upper filter cloth 104 and a lower filter cloth 105, respectively. The lower filter cloth 105 is laid flat on top of the chain conveyor 101, and one end of the lower filter cloth 105 is fixedly connected to one end of the upper filter cloth 104. A sludge cloth hopper 2 is fixedly connected to the middle of the top of the frame 1. A material feeding hopper 2 has a material feeding port 201 fixedly connected to one end of its bottom. The material feeding port 201 is parallel to the top of the chain conveyor 101. Both ends of the material feeding port 201 are fixedly connected to a width limiting plate 202. A turning roller 3 is rotatably connected between the tops of the width limiting plates 202. The upper filter cloth 104 is rotatably connected to the turning roller 3. A thickness adjusting plate 203 is inserted between the two width limiting plates 202. The thickness adjusting plate 203 is slidably connected to the top of the material feeding port 201. The thickness adjusting plate 203 is used to limit the height of the material feeding port 201, so that the material is laid flat on the lower filter cloth 105 with a specified thickness. When feeding the high-pressure dewatering machine, the sludge feeding hopper 2 is filled with the material to be dewatered. The material is evenly discharged from the feeding port 201 and accurately falls on the top of the chain conveyor 101. The top of the chain conveyor 101 is pre-laid with a lower filter cloth 105, and then the upper filter cloth 104 is covered on top of the material to be dewatered. This forms a combination of upper filter cloth 104, material, and lower filter cloth 105 on the chain conveyor 101, which facilitates the chain conveyor 101 to send the material into the high-pressure dewatering machine. After the high-pressure dewatering machine dewaters the material, the combination of upper filter cloth 104, material, and lower filter cloth 105 is also easy to discharge from the high-pressure dewatering machine, effectively improving the feeding and discharging efficiency of the high-pressure dewatering machine.

[0020] Figures 2 to 4 As shown, the upper fabric winding module 102 consists of an upper fabric winding roller 106 and an upper flattening roller 107, and the lower fabric winding module 103 consists of a lower fabric winding roller 108 and a lower flattening roller 109. The upper fabric winding roller 106 and the lower fabric winding roller 108 respectively perform the unwinding and winding operations of the upper filter cloth 104 and the lower filter cloth 105. The upper flattening roller 107 and the lower flattening roller 109 effectively improve the flattening effect of the upper filter cloth 104 and the lower filter cloth 105. The left and right ends of the upper fabric winding roller 106 and the lower fabric winding roller 108 are fixed to the frame 1 by safety clamps 110. The upper and lower roll cloth rollers 106 and 108 are detachably installed using a safety clamp 110, which facilitates the disassembly and cleaning of the upper filter cloth 104 and the lower filter cloth 105. The lower roll cloth module 103 also includes a desludge roller 111. A material scraper 112 is fixedly connected to the outside of the desludge roller 111. The lower filter cloth 105 passes between the desludge roller 111 and the material scraper 112. When the lower filter cloth 105 carries the dewatered material to the desludge roller 111, the material scraper 112 is used to automatically separate the lower filter cloth 105 from the dewatered material. The upper roll-up roller 106 takes up and releases the upper filter cloth 104, and the upper flattening roller 107 unfolds the upper filter cloth 104 into a plane, effectively improving the flattening effect of the upper filter cloth 104. The lower roll-up roller 108 takes up and releases the lower filter cloth 105, and the lower flattening roller 109 unfolds the lower filter cloth 105 into a plane, effectively improving the flattening effect of the lower filter cloth 105. When the dewatered material carried by the lower filter cloth 105 moves to the desliming roller 111, the dewatered material is affected by the material scraper 112, which causes the dewatered material to automatically separate from the lower filter cloth 105, making it easier for the lower filter cloth 105 to be wound up and restored. When it is necessary to clean the upper filter cloth 104 and the lower filter cloth 105, the upper winding roller 106 and the lower winding roller 108 can be removed by opening the safety clamp 110, which facilitates the disassembly and cleaning of the upper filter cloth 104 and the lower filter cloth 105.

[0021] Second implementation method: Compared to the first implementation, the main addition is a stop shaft 4, the specific new structure is as follows, and the rest of the structure is the same as the first implementation.

[0022] Figures 7 to 10As shown, a stop shaft 4 is rotatably connected to the bottom of the upper filter cloth module 102. Both ends of the stop shaft 4 are fixedly embedded with stop blocks 401. The stop blocks 401 roll in contact with the left and right edges of the upper filter cloth 104. The stop shaft 4 utilizes the regular contact between the stop blocks 401 and the upper filter cloth 104 to achieve short pauses during the transmission of the upper filter cloth 104, thus achieving a staggered separation effect between the upper filter cloth 104 and the dewatered material. This effectively reduces the adhesion between the dewatered material and the upper filter cloth 104. The stop blocks 401 are fan-shaped and made of stainless steel. Wear-resistant strips 402, made of wear-resistant rubber, are fixedly bonded to the left and right edges of the upper filter cloth 104. To effectively improve the frictional contact effect between the brake block 401 and the wear-resistant belt 402, and to effectively improve the wear resistance of the brake block 401 and the wear-resistant belt 402, a linkage wheel 403 is rotatably connected to one end of the stop shaft 4, a drive wheel 404 is fixedly connected to one end of the upper fabric rolling roller 106, a transmission belt 405 is rotatably connected between the linkage wheel 403 and the drive wheel 404, a pin 406 is inserted into the outside of the linkage wheel 403, a socket 407 is fixedly connected to the outside of the stop shaft 4, the pin 406 is inserted into the socket 407, and the linkage wheel 403 and the drive wheel 404 are driven by the transmission belt 405, so that the stop shaft 4 rotates synchronously with the upper fabric rolling roller 106; When the dehydrated material is removed from the high-pressure dewatering machine, the chain conveyor 101 drives the dehydrated material to move in opposite directions through the upper filter cloth 104 and the lower filter cloth 105. The upper winding roller 106 retracts the upper filter cloth 104, and the lower winding roller 108 retracts the lower filter cloth 105. The linkage wheel 403 and the drive wheel 404 are driven by the transmission belt 405, so that the stop shaft 4 rotates synchronously with the upper winding roller 106. The stop block 401 on the stop shaft 4 regularly rolls and contacts the upper filter cloth 104. By using the friction between the stop block 401 and the wear-resistant belt 402, the upper filter cloth 104 pauses briefly, while the lower filter cloth 105 and the dehydrated material continue to move. Therefore, the upper filter cloth 104 and the dehydrated material are staggered, which effectively reduces the adhesion between the upper filter cloth 104 and the dehydrated material, and facilitates the separation of the upper filter cloth 104 and the dehydrated material at the turning roller 3.

[0023] Figure 6 As shown, bearing modules 301 are rotatably connected to both ends of the turning roller 3. The bearing modules 301 are slidably connected to the width limiting plate 202. A tension spring 302 is fixedly connected between the bearing modules 301 and the sludge cloth hopper 2. The tension spring 302 is used to buffer the turning roller 3 when the upper filter cloth 104 is taut, effectively reducing the damage to the upper filter cloth 104. When the upper filter cloth 104 stops due to the brake block 401 on the stop shaft 4, the upper winding roller 106 is still winding the upper filter cloth 104. The upper filter cloth 104 is stretched taut. The stretched upper filter cloth 104 exerts pressure on the turning roller 3, pulling the turning roller 3 away from the sludge cloth bin 2. The turning roller 3 slides between the width limiting plates 202 through the bearing module 301 and stretches the tension spring 302. The elastic force of the tension spring 302 is used to buffer the tension of the upper filter cloth 104, effectively reducing the damage to the upper filter cloth 104.

[0024] Compared to the first embodiment, this embodiment adds a stop shaft 4. During the winding and recycling process of the upper filter cloth 104, the upper winding roller 106 synchronously drives the stop shaft 4 to rotate. The rotation direction of the stop shaft 4 is opposite to the winding and conveying direction of the upper filter cloth 104. The friction between the stop block 401 on the stop shaft 4 and the wear-resistant belt 402 achieves a short pause of the upper filter cloth 104 by using friction. At this time, the lower filter cloth 105 and the dewatered material still maintain the conveying motion. By intersecting the force directions, the upper filter cloth 104 and the dewatered material are separated. Compared with the first embodiment, this effectively reduces the adhesion between the upper filter cloth 104 and the dewatered material and effectively improves the winding and recycling effect of the upper filter cloth 104.

[0025] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A feeding and discharging mechanism for a high-pressure dewatering machine, characterized in that: Includes a frame (1), a chain conveyor (101) is fixedly connected to the middle of the frame (1), an upper cloth winding module (102) is fixedly connected to one top end of the frame (1), and a lower cloth winding module (103) is fixedly connected to the other bottom end of the frame (1). The upper cloth winding module (102) and the lower cloth winding module (103) are respectively used to wind up and unwind the upper filter cloth (104) and the lower filter cloth (105). The lower filter cloth (105) is laid flat on the top of the chain conveyor (101), and one end of the lower filter cloth (105) is fixedly connected to one end of the upper filter cloth (104). The top center of the frame (1) is fixedly connected to a sludge feeding bin (2), and the bottom end of the sludge feeding bin (2) is fixedly connected to a feeding port (201). The feeding port (201) is parallel to the top of the chain conveyor (101). Both outer ends of the feeding port (201) are fixedly connected to a width limiting plate (202). The top of the width limiting plate (202) is rotatably connected to a turning roller (3). The upper filter cloth (104) is rotatably connected to the turning roller (3).

2. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 1, characterized in that: A thickness adjustment plate (203) is inserted between the two width limiting plates (202), and the thickness adjustment plate (203) is slidably connected to the top of the fabric opening (201).

3. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 1, characterized in that: The upper fabric winding module (102) is composed of an upper fabric winding roller (106) and an upper flattening roller (107), and the lower fabric winding module (103) is composed of a lower fabric winding roller (108) and a lower flattening roller (109).

4. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 3, characterized in that: The left and right ends of the upper roll (106) and the lower roll (108) are fixedly connected to the frame (1) by safety clamps (110).

5. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 1, characterized in that: The lower cloth winding module (103) also includes a desliming roller (111), and a material scraper (112) is fixedly connected to the outside of the desliming roller (111). The lower filter cloth (105) passes between the desliming roller (111) and the material scraper (112).

6. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 1, characterized in that: Both ends of the turning roller (3) are rotatably connected to bearing modules (301), the bearing modules (301) are slidably connected to the width limiting plate (202), and a tension spring (302) is fixedly connected between the bearing modules (301) and the sludge feeding bin (2).

7. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 3, characterized in that: The bottom of the upper cloth winding module (102) is rotatably connected to a stop shaft (4). Both ends of the stop shaft (4) are fixedly inlaid with stop blocks (401). The stop blocks (401) are in rolling contact with the left and right edges of the upper filter cloth (104). One end of the stop shaft (4) is rotatably connected to a linkage wheel (403). One end of the upper cloth winding roller (106) is fixedly connected to a drive wheel (404). A transmission belt (405) is rotatably connected between the linkage wheel (403) and the drive wheel (404). A plug pin (406) is inserted into the outside of the linkage wheel (403). A plug seat (407) is fixedly connected to the outside of the stop shaft (4). The plug pin (406) is inserted into the plug seat (407).

8. The feeding and discharging mechanism of a high-pressure dewatering machine according to claim 7, characterized in that: The braking block (401) is arranged in a fan shape and is made of stainless steel. The left and right edges of the upper filter cloth (104) are fixedly bonded with wear-resistant belts (402), which are made of wear-resistant rubber.

Images