Single-filter-cloth-stacked high-pressure-dehydrated material distributing and discharging device and using method thereof

Abstract

The invention provides a single filter cloth stacking high-pressure dewatering distributing and discharging device and a using method thereof. The device comprises a rack, a feeding device, filter cloth, a filter cloth winding and unwinding roller, a cloth driving conveyor and a filter cloth folding / unfolding device. The feeding device, the filter cloth winding and unwinding roller and the filter cloth folding / unfolding device are connected and mounted on the cloth driving conveyor, and the feeding device and the filter cloth folding / unfolding device are mounted above the cloth driving conveyor; the filter cloth take-up and pay-off roller is mounted below the cloth driving conveyor; one end of the filter cloth is fixedly connected to the filter cloth winding and unwinding roller, and the other end of the filter cloth sequentially penetrates through the lower part of the feeding device, the filter cloth folding / edge unfolding device and the upper part of the cloth driving conveyor and is connected into a filter pressing box below the cloth driving conveyor. According to the device, the condition of material leakage of the filter cloth in the material dehydration process is avoided, and operation with a better automation degree is realized.

Description

Technical Field

[0001] This invention belongs to the technical field of high-pressure dewatering of materials, and in particular relates to a single filter cloth stacked high-pressure dewatering device and unloading device and its usage method. Background Technology

[0002] In many industrial and agricultural production processes, it is necessary to dehydrate materials with high moisture content. In order to further improve dehydration efficiency and reduce the subsequent drying cost of materials and improve economic benefits, people have developed high-pressure stacked filter presses, which can dehydrate materials with more than 80% moisture content to about 40% moisture content.

[0003] The existing high-pressure laminated filter press has the following significant technical defects in its material feeding method: First, the material is placed into the filter press chamber in layers without proper folding between the upper and lower filter cloths. The sides of the filter cloths are completely random and irregular. During high-pressure filtration, material may leak from the sides of the filter cloths and mix into the filtered water, not only soiling the filter cloths and affecting the cleanliness and environmental friendliness of the dewatering process, but also resulting in the loss of dry matter. Second, the filter cloths are not folded regularly, resulting in severe wrinkles on both sides of the filter cloths after high-pressure filtration, affecting the neat winding of the filter cloths and subsequent material feeding, and further affecting the service life of the filter cloths. Third, the upper and lower filter cloths are prone to inconsistent linear speeds during material feeding and unloading, resulting in vertical misalignment. Manual intervention is often required during production to correct this, affecting the effectiveness and efficiency of material feeding and unloading, and making it difficult to achieve automated operation.

[0004] Therefore, it is crucial and important to develop a material feeding and unloading device that prevents material leakage during the filter press process and enables higher automation, thereby improving the current technical level and application value of high-pressure laminated filter presses. Summary of the Invention

[0005] The purpose of this invention is to provide a material feeding and unloading device and method for high-pressure dewatering of single-layer filter cloth, so as to solve the problems of filter cloth leakage and poor automation in the current high-pressure laminated filter press during material dewatering.

[0006] The objective of this invention and the technical problem it solves are achieved by the following technical solutions.

[0007] This invention proposes a fabric and unloading device for high-pressure dewatering of single-layer filter cloth. The fabric and unloading device includes a frame, a feeding device, a filter cloth, a filter cloth take-up and unload roller, a fabric drive conveyor, and a filter cloth folding / unfolding device. The feeding device, the filter cloth take-up and unload roller, and the filter cloth folding / unfolding device are connected and installed on the fabric drive conveyor, wherein the feeding device and the filter cloth folding / unfolding device are installed above the fabric drive conveyor; the filter cloth take-up and unload roller is installed below the fabric drive conveyor; one end of the filter cloth is fixedly connected to the filter cloth take-up and unload roller, and the other end passes sequentially through the area below the feeding device, the filter cloth folding / unfolding device, and the area above the fabric drive conveyor, and is connected to a filter press box below the fabric drive conveyor.

[0008] As an optional embodiment of the present invention, the fabric and unloading device further includes a fabric traction device; the fabric traction device consists of a traveling roller, a traveling track, a traveling transmission mechanism, a transmission sliding mechanism, and a fixing mechanism. The traveling roller is connected and installed below the fabric drive conveyor and above the traveling track. The traveling track is connected and installed on the frame. One end of the traveling transmission mechanism is connected to the transmission chain of the fabric drive conveyor, and the other end is hinged to the transmission sliding mechanism. The transmission sliding mechanism is connected and installed on the fixing mechanism, and the fixing mechanism is connected and installed on the frame.

[0009] As an optional embodiment of the present invention, the fabric feeding and unloading device further includes a fabric pushing device; the fabric pushing device consists of a fabric pushing belt conveyor and a fabric pushing mechanism, the fabric driving conveyor is connected to the frame, the fabric pushing belt conveyor is connected and installed below the fabric driving conveyor and on the fabric pushing mechanism, and the fabric pushing mechanism is connected and installed on the frame.

[0010] As an optional embodiment of the present invention, it further includes a filter cloth folding redirection mechanism; the filter cloth folding redirection mechanism is connected and installed between the filter cloth take-up roller and the folding / unfolding device and behind the input end of the fabric drive conveyor.

[0011] As an optional embodiment of the present invention, the width of the filter cloth is more than twice the width of the fabric.

[0012] As an optional embodiment of the present invention, the filter cloth folding / unfolding device consists of an edge-supporting mechanism and a filter cloth folding / unfolding roller assembly; the edge-supporting mechanism is connected and installed on the frame above the fabric drive conveyor; the filter cloth folding / unfolding roller assembly has at least two sets, at least one set on each side along the filter cloth conveying direction, facing opposite directions and hingedly installed on the frame above the filter cloth folding / unfolding device; The filter cloth folding roller assembly includes a shafted, unpowered roller, a U-shaped opening and closing roller seat, and a roller tensioning mechanism. There are at least two shafted, unpowered rollers, which are respectively connected and installed on both sides of the opening and closing ends of the U-shaped opening and closing roller seat. The roller tensioning mechanism is connected between the opening and closing ends of the U-shaped opening and closing roller seat. The U-shaped opening and closing roller seat is hinged to the frame above the edge support mechanism.

[0013] As an optional embodiment of the present invention, it further includes a reversing cylinder; the reversing cylinder is hinged between the frame and the U-shaped opening and closing roller seat.

[0014] As an optional embodiment of the present invention, it further includes a lifting pressure roller; the lifting pressure roller is connected and installed above the fabric drive conveyor and the filter cloth at the rear end of the filter cloth folding / unfolding device.

[0015] As an optional embodiment of the present invention, it further includes a lifting and pressing fabric conveyor; the lifting and pressing fabric conveyor is connected to the fabric drive conveyor and the filter fabric above the filter fabric installed at the rear end of the filter fabric folding / unfolding device.

[0016] As an optional embodiment of the present invention, it further includes a lifting pressure roller and a lifting fabric conveyor; the lifting pressure roller and the lifting fabric conveyor are sequentially connected and installed above the fabric drive conveyor at the rear end of the filter cloth folding / unfolding device and above the filter cloth.

[0017] As an optional embodiment of the present invention, it further includes a take-up and release clutch; the take-up and release clutch is connected and installed on the filter cloth take-up and release roller.

[0018] As an optional embodiment of the present invention, it further includes a filter cloth correction mechanism; the filter cloth correction mechanism is connected and installed on the frame below the fabric drive conveyor at the front end of the filter cloth take-up and untake-down roller, and the filter cloth passes through the filter cloth correction mechanism.

[0019] The present invention also provides a method for using the above-described single filter cloth stacked high-pressure dewatering cloth and unloading device, which includes the following steps: S1 Feeding: The material to be dewatered is laid in the middle of the filter cloth according to the set width and thickness by the feeding device; S2 Cloth Pulling: The filter cloth wound on the filter cloth take-up and release roller is pulled towards the filter press box by the cloth drive conveyor and carries the dewatered material layer therein; S3 Folding: During the process of the filter cloth carrying the dewatered material layer being pulled towards the filter press box by the fabric drive conveyor, when passing through the folding / unfolding device, the two sides of the filter cloth are gradually gathered towards the middle and downward until the two sides overlap and adhere to the upper surface of the dewatered material. S4 Folding: The filter cloth, after being folded, carries the dewatered material layer in a zigzag pattern and is laid into the filter press box by the cloth drive conveyor via the cloth pushing device or cloth traction device. The filter cloth is then placed into the filter press box until the filter press box is full. S5 Cloth Retraction: When the dewatered material is filtered in the filter press box, the filter cloth retraction roller starts to rotate in the opposite direction to the cloth, pulling the filter cloth carrying the dewatered material out of the filter press box. S6 Edge spreading: As the filter cloth carrying the dewatered material layer is pulled towards the filter press box by the cloth take-up roller and the cloth drive conveyor, the two sides of the filter cloth are gradually opened to the sides and upwards and separated from the upper surface of the dewatered material when passing through the folding / edge spreading device. S7 Unloading: The filter cloth is pulled back by the filter cloth take-up and release roller and unfolded on both sides by the folding / unfolding device. The material flakes on the filter cloth are dehydrated by the filter cloth folding angle redirection mechanism and then separated from the filter cloth to complete unloading. S8 Cloth Roll: The filter cloth that has been unloaded is wound back onto the filter cloth take-up roller until all the filter cloth and dewatered material layer in the filter press box are pulled out and unloaded. The filter cloth is then wound up and ready for the next cycle.

[0020] As an optional embodiment of the present invention, it further includes the filter cloth described in S3 being folded by the folding / unfolding device and then rolled by the lifting pressure roller and the pressing cloth conveyor. The filter cloth described in S8 is further corrected by a filter cloth correction mechanism after passing through the filter cloth folding and reversing mechanism and before being wound up by the filter cloth take-up and unwinding roller.

[0021] Compared with the prior art, the present invention has significant advantages and beneficial effects. Through the above technical solution, the single-layer filter cloth stacked high-pressure dewatering cloth and unloading device and its usage method of the present invention have at least the following advantages and beneficial effects: First, the material is laid on a filter cloth, and the left and right sides of the filter cloth are regularly and neatly overlapped and folded into the filter press box. The material is locked in a sealed "pocket" on all four sides, which effectively prevents the material from leaking from both sides of the filter cloth during the high-pressure filtration process. The effluent from the filter press is clear, and the filter cloth is not contaminated by the leaked material. The dewatering production is highly clean and environmentally friendly, and can effectively reduce the loss of dry matter from the material with the effluent from the filter press.

[0022] Secondly, the filter cloth overlaps regularly in the middle, making it less prone to wrinkling after high-pressure filtration. This allows for neat winding and stable subsequent fabric application, resulting in a longer service life and less wear.

[0023] Third, by using a single filter cloth, the technical problem of inconsistent linear speeds of the filter cloth during feeding and unloading, as well as misalignment, which often requires manual intervention during production, is eliminated when using two filter cloths (upper and lower). This feeding and unloading device has better feeding and unloading effects and higher efficiency, achieving better automated operation.

[0024] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0025] Figure 1 This is a front view schematic diagram of a single filter cloth stacked high-pressure dewatering cloth and unloading device according to Embodiment 1 of the present invention.

[0026] Figure 2 yes Figure 1 A partially enlarged schematic diagram of a filter cloth folding roller assembly at point A.

[0027] Figure 3 This is a top view schematic diagram of another single filter cloth layer high-pressure dewatering cloth and unloading device according to Embodiment 1 of the present invention.

[0028] Figure 4 This is a front view schematic diagram of another single filter cloth layer high-pressure dewatering cloth and unloading device according to Embodiment 2 of the present invention.

[0029] Figure 5 yes Figure 4 A partially enlarged schematic diagram of another filter cloth folding roller assembly at point B.

[0030] Figure 6 This is a left-side schematic diagram of another single-layer filter cloth stacked high-pressure dewatering cloth and unloading device according to Embodiment 2 of the present invention.

[0031] Figure 7 This is a front view schematic diagram of another single filter cloth layer high-pressure dewatering cloth and unloading device according to Embodiment 3 of the present invention.

[0032] Figure 8 This is a front view schematic diagram of another single filter cloth layer high-pressure dewatering cloth and unloading device according to Embodiment 4 of the present invention.

[0033] Figure 9 This is a front view schematic diagram of another single filter cloth layer high-pressure dewatering cloth and unloading device according to Embodiment 5 of the present invention.

[0034] Explanation of icon numbers 1: Frame 2: Feeding device 3: Filter cloth 4: Filter cloth take-up roller 41: Retraction / Expansion Clutch; 5: Fabric Drive Conveyor 6: Filter cloth folding / unfolding device; 61: Edge support mechanism 62: Filter cloth folding roller assembly; 621: Shafted, unpowered roller assembly 622: U-shaped opening and closing roller seat; 623: Roller tensioning mechanism 624: Reversing cylinder; 7: Fabric traction device 71: Traveling rollers 72: Traveling track 73: Traveling transmission mechanism 74: Transmission sliding mechanism 75: Fixing mechanism; 8: Fabric pushing device 81: Fabric pushing belt conveyor 82: Fabric pushing mechanism 9: Filter cloth folding and reversing mechanism; 10: Lifting and pressing roller. 11: Lifting and pressing conveyor for filter cloth 12: Filter cloth correction mechanism A, B: Filter cloth folding roller assembly Detailed Implementation

[0035] To further illustrate the technical means and effects adopted by the present invention to achieve the intended purpose, the following detailed description, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation, structure, features, and effects of the single filter cloth layered high-pressure dewatering cloth and unloading device proposed according to the present invention.

[0036] Example 1 Please see Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 Point A in the diagram represents the filter cloth folding and unloading roller assembly. The single-layer high-pressure dewatering fabric and unloading device of Embodiment 1 of this invention mainly consists of a frame 1, a feeding device 2, a filter cloth 3, a filter cloth take-up and unload roller 4, a fabric drive conveyor 5, a filter cloth folding / unloading device 6, and a fabric traction device 7. The feeding device 2, the filter cloth take-up and unload roller 4, and the filter cloth folding / unloading device 6 are connected and installed on the fabric drive conveyor 5, with the feeding device 2 and the filter cloth folding / unloading device 6 installed above the fabric drive conveyor 5. The filter cloth take-up and unload roller 4 is installed below the fabric drive conveyor 5. One end of the filter cloth 4 is fixedly connected to the filter cloth take-up and unload roller 4, and the other end passes sequentially through the area below the feeding device 2, the filter cloth folding / unloading device 6, and the area above the fabric drive conveyor 5, connecting to the filter press box below the fabric drive conveyor 5. The width of the filter cloth 4 is 2.3 times the width of the fabric.

[0037] As an optional implementation, the filter cloth folding / unfolding device 6 consists of an edge-supporting mechanism 61 and a filter cloth folding / unfolding roller assembly 62; the edge-supporting mechanism 61 is connected and installed on the frame 1 above the fabric drive conveyor 5; the filter cloth folding / unfolding roller assembly 62 has four sets, with two sets on each side along the conveying direction of the filter cloth 3 facing opposite directions and hinged to the frame 1 above the filter cloth folding / unfolding device 6.

[0038] As an optional implementation, the filter cloth folding roller assembly 62 includes a shafted, unpowered roller 621, a U-shaped opening and closing roller seat 622, and a roller tensioning mechanism 623. The shafted, unpowered roller 621 can have at least two rollers, which are respectively connected and installed on both sides of the opening and closing end of the U-shaped opening and closing roller seat 622. The roller tensioning mechanism 623 is connected between the opening and closing ends of the U-shaped opening and closing roller seat 622. The U-shaped opening and closing roller seat 622 is hingedly installed on the frame 1 above the edge support mechanism 61.

[0039] As an optional implementation, the fabric traction device 7 comprises a traveling roller 71, a traveling track 72, a traveling transmission mechanism 73, a transmission sliding mechanism 74, and a fixing mechanism 75. The traveling roller 71 is connected and installed below the fabric drive conveyor 5 and above the traveling track 72. The traveling track 72 is connected and installed on the frame 1. One end of the traveling transmission mechanism 73 is connected to the transmission chain of the fabric drive conveyor 5, and the other end is hinged to the transmission sliding mechanism 74. The transmission sliding mechanism 74 is connected and installed on the fixing mechanism 75, and the fixing mechanism 75 is connected and installed on the frame 1. During fabric application, the fabric drive conveyor 5 reciprocates on the filter press box of the stacked high-pressure dewatering equipment via the fabric traction device 7, conveying the filter cloth 3, after dewatering and folding, layer by layer into the filter press box of the stacked high-pressure dewatering equipment.

[0040] Example 2 Please see Figure 4 , Figure 5 and Figure 6 As shown, Figure 4 Point B in the middle is the filter cloth folding roller group. The single filter cloth stacking high-pressure dewatering cloth and unloading device in Embodiment 2 of the present invention are similar to those in Embodiment 1, with the only difference being: To eliminate the need for the fabric drive conveyor 5 to reciprocate during fabric application, thus improving energy efficiency and safety, a fabric pushing device 8 is installed. This device consists of a fabric pushing belt conveyor 81 and a fabric pushing mechanism 82. The fabric drive conveyor 5 is connected to the frame 1, the fabric pushing belt conveyor 81 is connected and installed below the fabric drive conveyor 5 and on the fabric pushing mechanism 82, and the fabric pushing mechanism 82 is connected and installed on the frame 1. The filter cloth 3, after dewatering and folding, is conveyed by the fabric drive conveyor 5 to the fabric pushing device 8, and then pushed and stacked into the filter press box of the stacked high-pressure dewatering equipment every two layers.

[0041] As an optional implementation, to facilitate the high-pressure dewatering of single-layer filter cloths, when the filter cloth 3 and the unloading device move in opposite directions, the filter cloth folding / unfolding device 6 can automatically reverse the direction of the filter cloth folding / unfolding roller group 62. As an optional implementation, the filter cloth folding / unfolding device 6 is also equipped with a reversing cylinder 624, such as... Figure 4 The filter cloth folding roller assembly at point B; the reversing cylinder 624 is hinged between the frame 1 and the U-shaped opening and closing roller seat 622.

[0042] As an optional implementation, in order to better assist the filter cloth folding / unfolding device 6 in completing the overlapping of the filter cloth 3 and the separation and unloading of the dehydrated material from the filter cloth 3 during the fabric application process, a filter cloth folding angle redirection mechanism 9 is also added; the filter cloth folding angle redirection mechanism 9 is connected and installed between the filter cloth take-up roller 4 and the folding / unfolding device 6 and behind the input end of the fabric drive conveyor 5.

[0043] Example 3 Please see Figure 7 and Figure 5 As shown, the single filter cloth layer high-pressure dewatering cloth and unloading device in Embodiment 3 of the present invention are similar to those in Embodiment 2, with the only difference being: To improve the adhesion between the dewatered material and the filter cloth 3 and to increase the tension on the filter cloth 3 during fabric application to enhance the fabric application effect, a lifting pressure roller 10 is also installed. The lifting pressure roller 10 is connected to and installed above the fabric drive conveyor 5 at the rear end of the filter cloth folding / unfolding device 6 and the filter cloth 3.

[0044] As an optional implementation, in order to realize that the filter cloth take-up and unloading device of the single filter cloth stacked high pressure dewatering is in the driven roller state when the filter cloth is being laid and in the driving roller state when unloading, a take-up and unloading clutch 41 is also added; the take-up and unloading clutch 41 is connected and installed on the filter cloth take-up and unloading roller 4.

[0045] Example 4 Please see Figure 8 As shown, the single filter cloth layer high-pressure dewatering cloth and unloading device in Embodiment 4 of the present invention are similar to those in Embodiment 2, with the only difference being: To improve the adhesion between the dewatered material and the filter cloth 3 and to increase the tension on the filter cloth 3 during fabric application to enhance the fabric application effect, a lifting and pressing conveyor 11 is also installed. The lifting and pressing conveyor 11 is connected to the fabric drive conveyor 5 and the filter cloth 3 above the rear end of the filter cloth folding / unfolding device 6.

[0046] As an optional implementation, in order to prevent the filter cloth from deviating during the feeding and unloading process, thus affecting the effect of the cloth and the stability of the equipment operation, a filter cloth correction mechanism 12 is also added. The filter cloth correction mechanism 12 is connected and installed on the frame 1 below the cloth drive conveyor 5 at the front end of the filter cloth take-up roller 4, and the filter cloth 3 passes through the filter cloth correction mechanism 12.

[0047] Example 5 Please see Figure 9 As shown, the single filter cloth layer high-pressure dewatering cloth and unloading device in Embodiment 5 of the present invention are similar to those in Embodiment 2, except that: To improve the adhesion between the dewatered material and the filter cloth 3 and to increase the tension on the filter cloth 3 during fabric application to enhance the fabric application effect, a lifting pressure roller 10 and a lifting fabric conveyor 11 are also installed. The pressure roller 10 and the lifting fabric conveyor 11 are sequentially connected and installed above the fabric drive conveyor 5 at the rear end of the filter cloth folding / unfolding device 6 and above the filter cloth 3.

[0048] The present invention also discloses a method for using a single filter cloth layer high-pressure dewatering fabric and a discharge device, the method comprising the following steps: S1 Feeding: The material to be dehydrated is laid in the middle of the filter cloth 3 according to the set width and thickness by the feeding device 2.

[0049] S2 Cloth Pulling: The filter cloth 3 wound on the filter cloth take-up roller 4 is pulled towards the filter press box of the stacked high-pressure dewatering equipment by the cloth drive conveyor 5 and carries the dewatered material layer therein.

[0050] S3 Folding: During the process of the filter cloth 3 carrying the dewatered material layer being pulled by the fabric drive conveyor 5 to the filter press box of the stacked high pressure dewatering equipment, when passing through the folding / unfolding device 6, the two sides of the filter cloth 3 are gradually gathered towards the middle and downwards until the two sides overlap and adhere to the upper surface of the dewatered material, forming a "tube" to seal the dewatered material.

[0051] S4 Folding: The fabric drive conveyor 5 moves back and forth above the filter press box of the stacked high pressure dewatering equipment via the fabric traction device 7 or the fabric pushing device 8. The filter cloth 3, with its folded edges, carries the dewatered material layer in a zigzag pattern and is placed into the filter press box of the stacked high pressure dewatering equipment until the filter press box is full.

[0052] S5 Cloth Retraction: When the dewatered material completes the filtration in the filter press box of the stacked high-pressure dewatering equipment, the filter cloth retraction roller 4 starts to rotate in the opposite direction to the cloth, pulling the filter cloth 3 carrying the dewatered material out of the filter press box of the stacked high-pressure dewatering equipment.

[0053] S6 Edge spreading: During the process of the filter cloth 3 carrying the dewatered material layer being pulled back by the cloth take-up roller 4 and the cloth drive conveyor 5, when passing through the folding / edge spreading device 6, the two sides of the filter cloth 3 are gradually opened to the sides and upwards and separated from the upper surface of the dewatered material.

[0054] S7 Unloading: The filter cloth 3 is pulled back by the filter cloth take-up roller 4 and unfolded on both sides by the folding / unfolding device 6. When it passes through the filter cloth folding angle redirection mechanism 9, the material pieces on the filter cloth 3 are dehydrated and then separated from the filter cloth 3 to complete unloading.

[0055] S8 Cloth Roll: The filter cloth 3, after unloading, is wound back onto the filter cloth take-up roller 4 until all the filter cloth 3 and the dewatered material layer in the filter press box of the stacked high-pressure dewatering equipment are pulled out and unloaded. The filter cloth 3 is then wound up and ready for the next cycle.

[0056] In a specific embodiment of the method of using the single filter cloth layer high-pressure dewatering cloth and unloading device of the present invention, the specific steps of the method are as follows: S1 Feeding: The municipal sludge with a moisture content of 80% that needs to be dehydrated is laid in the middle of the filter cloth 3 with a width of 3200mm and a thickness of 15mm through the feeding device 2.

[0057] S2 Cloth Pulling: The filter cloth 3, wound on the filter cloth take-up roller 4, is pulled towards the filter press box of the stacked high-pressure dewatering equipment by the cloth drive conveyor 5, carrying the municipal sludge material layer with 80% moisture content.

[0058] S3 Folding: As the filter cloth 3 carrying the municipal sludge material layer with 80% moisture content is pulled by the cloth drive conveyor 5 to the filter press box of the stacked high-pressure dewatering equipment, when passing through the folding / unfolding device 6, the two sides of the filter cloth 3 are gradually gathered towards the middle and downward until the two sides overlap by 200mm and adhere to the upper surface of the municipal sludge material layer with 80% moisture content, forming a flat "tube" with a width of 1500mm that seals the municipal sludge material layer with 80% moisture content inside.

[0059] S4 Folding: The filter cloth 3, which is folded into a flat "tube" shape by the cloth drive conveyor 5 and the cloth traction device 7, carries the municipal sludge material layer with 80% moisture content and is laid in a "zigzag" shape layer by layer into the filter press box of the stacked high pressure dewatering equipment until 200 layers are laid to fill the filter press box of the stacked high pressure dewatering equipment.

[0060] S5 Cloth Retraction: When municipal sludge with 80% moisture content is dehydrated to below 50% after 40 minutes of high-pressure filtration at 5MPa in the filter press chamber of the stacked high-pressure dewatering equipment, the filter cloth retraction roller 4 starts to rotate in the opposite direction to the cloth. The filter cloth 3 is pulled back and carries the municipal sludge flakes with less than 50% moisture content out of the filter press chamber of the stacked high-pressure dewatering equipment.

[0061] S6 Edge spreading: During the process of the filter cloth 3 carrying municipal sludge sheets with a moisture content of less than 50% being pulled back by the cloth take-up roller 4, when passing through the folding / edge spreading device 6, the two overlapping sides of the filter cloth 3 are gradually opened to both sides and upwards and separated from the upper surface of the municipal sludge sheets with a moisture content of less than 50%.

[0062] S7 Unloading: The filter cloth 3 is pulled back by the filter cloth take-up roller 4 and gradually unfolded on both sides to a width of 3200mm by the folding / unfolding device 6. When it passes through the filter cloth folding and reversing mechanism 9, the filter cloth 3 changes direction and runs, and the municipal sludge flakes with a moisture content of less than 50% on it are separated from the filter cloth 3 to complete the unloading.

[0063] S8 Cloth Roll: The filter cloth 3, after being unloaded, is laid flat in a 3200mm width and wound back onto the filter cloth take-up roller 4 until all the filter cloth 3 and municipal sludge sheets with a moisture content of less than 50% in the filter press box of the stacked high-pressure dewatering equipment are pulled out and unloaded. The filter cloth 3 is then wound up and ready for the next cycle.

[0064] In another specific embodiment of the method of using the single filter cloth layer high-pressure dewatering cloth and unloading device of the present invention, the specific steps of the method are similar to those of the previous embodiment, the only difference being: To ensure better adhesion between the dewatered material and the filter cloth 3 and improve the fabric performance, in step S3, after the filter cloth 3 is folded by the folding / unfolding device 6, it is further rolled by the lifting pressing roller 10 and the pressing conveyor 11 along with the municipal sludge material layer containing 80% moisture.

[0065] In S4, the cloth drive conveyor 5 and the cloth pushing device 8 reciprocate above the filter press box of the stacked high pressure dewatering equipment, and the filter cloth 3, which is folded into a flat "tube" shape, carries the municipal sludge material layer with 80% moisture and is stacked in a "zigzag" shape into the filter press box of the stacked high pressure dewatering equipment.

[0066] In an optional embodiment, in order to make the filter cloth 3 be wound up more neatly, in S8 the filter cloth 3 is also corrected by the filter cloth correction mechanism 12 after passing through the filter cloth folding and reversing mechanism 9 and before being wound up by the filter cloth take-up and unwound roller 4.

[0067] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A single cloth filter layer stacked high pressure dewatering cloth and discharge device, characterized in that: The utility model provides a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press.

2. The single cloth filter layer stacked high pressure dewatering cloth and discharge device according to claim 1, characterized in that: The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press.

3. The single cloth filter layer stacked high pressure dewatering cloth and discharge apparatus according to claim 1, characterized by: The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press.

4. The single cloth layering high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press.

5. The single cloth layering high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press.

6. The single cloth layering high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the field of filter press. The utility model discloses a filter cloth folding / unfolding device and filter press, and belongs to the The filter cloth folding / unfolding roller group (62) comprises shaftless rollers (621), U-shaped opening / closing roller seats (622), and roller tensioning mechanisms (623), wherein the shaftless rollers (621) are at least two in number and are respectively connected and installed on both sides of the opening / closing end of the U-shaped opening / closing roller seat (622), the roller tensioning mechanisms (623) are connected between the opening / closing end of the U-shaped opening / closing roller seat, and the U-shaped opening / closing roller seat (622) is hingedly installed on the rack (1) above the edge supporting mechanism (61).

7. The single cloth filter layer stacked high pressure dewatering cloth and discharge apparatus according to claim 6, characterized by: It further comprises a reversing cylinder (624), which is hingedly installed between the rack (1) and the U-shaped opening / closing roller seat (622).

8. The single cloth layering high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: It further comprises a lifting pressure roller (10), which is connected and installed above the cloth driving conveyor (5) and the filter cloth (3) at the rear end of the filter cloth folding / unfolding edge device (6).

9. The single cloth layering high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: It further comprises a lifting pressure cloth conveyor (11), which is connected and installed above the cloth driving conveyor (5) and the filter cloth (3) at the rear end of the filter cloth folding / unfolding edge device (6).

10. The single cloth layer lapped high pressure dewatering cloth and discharge apparatus according to claims 1 to 3, characterized in that: It further comprises a lifting pressure roller (10) and a lifting pressure cloth conveyor (11), which are connected and installed above the cloth driving conveyor (5) and the filter cloth (3) at the rear end of the filter cloth folding / unfolding edge device (6) in sequence.

11. The single cloth layer lapped high pressure dewatering cloth and discharge apparatus according to claims 1 to 3, characterized in that: It further comprises a take-up and pay-off clutch (41), which is connected and installed on the filter cloth take-up and pay-off roller (4).

12. The single cloth filter layer stacked high pressure dewatering cloth and discharge device according to claims 1-3, characterized in that: It further comprises a filter cloth deviation rectifying mechanism (12), which is connected and installed on the rack (1) below the cloth driving conveyor (5) at the front end of the filter cloth take-up and pay-off roller (4), and the filter cloth (3) passes through the filter cloth deviation rectifying mechanism (12).

13. A method of using a single cloth filter layer stacked high pressure dewatering cloth and discharge device according to any one of claims 1 to 12, characterized in that: It comprises the following steps: S1 Feeding: The material to be dewatered is laid on the filter cloth (3) in the middle according to the set width and thickness through the feeding device (2); S2 Cloth pulling and releasing: The filter cloth (3) wound on the filter cloth take-up and pay-off roller (4) is pulled by the cloth driving conveyor (5) towards the filter press and carries the dewatered material layer to run; S3 Edge folding: In the process that the filter cloth (3) carrying the dewatered material layer is pulled by the cloth driving conveyor (5) towards the filter press, the two edges of the filter cloth (3) are gradually folded to the middle and downwards through the edge folding / unfolding device (6) to overlap and adhere to the upper surface of the dewatered material; S4 Folding: The filter cloth (3) carrying the dewatered material layer is laid in the filter press in a zigzag shape through the reciprocating movement of the cloth driving conveyor (5) above the filter press through the cloth pushing device (8) or the cloth pulling device (7), until the filter press is fully filled; S5 Cloth pulling and releasing: When the dewatered material is dewatered in the filter press, the filter cloth take-up and pay-off roller (4) is started to rotate in the opposite direction of the cloth to pull out the filter cloth (3) carrying the dewatered material from the filter press; S6 Edge spreading: During the process of the filter cloth (3) carrying the dewatered material layer being pulled towards the filter press box by the cloth take-up roller (4) and the cloth drive conveyor (5), when passing through the folding / edge spreading device (6), the two sides of the filter cloth (3) are gradually opened to both sides and upward and separated from the upper surface of the dewatered material. S7 Unloading: The filter cloth (3) is pulled back by the filter cloth take-up roller (4) and unfolded on both sides by the folding / unfolding device (6). The material pieces on the filter cloth (3) are dehydrated by the filter cloth folding angle redirection mechanism (9) and then separated from the filter cloth (3) to complete unloading. S8 Cloth Roll: The filter cloth (3) that has been unloaded is wound back onto the filter cloth take-up roller (4) until the filter cloth (3) and the dewatered material layer in the filter press box are all pulled out and unloaded. The filter cloth (3) is then wound up and ready for the next cycle.

14. The method of using the single filter cloth stacked high-pressure dewatering cloth and unloading device according to claim 13, characterized in that: The filter cloth (3) in S3 is folded by the folding / unfolding device (6) and then rolled by the lifting pressure roller (10) and the pressing conveyor (11); The filter cloth (3) in S8 is corrected by the filter cloth folding and reversing mechanism (9) and before being wound up by the filter cloth take-up and unwound roller (4).

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