Spatial vertical multi-layer filter press dewatering machine using annular filter cloth

Abstract

A spatial vertical multi-layer filter press dewatering machine using an annular filter cloth. The dewatering machine comprises a frame, a material distribution machine, a hydraulic filter press, a filter plate, a filter cloth, and a filter cloth traction system; the material distribution machine, the hydraulic filter press, and the filter cloth traction system are sequentially connected to the frame; the filter plate is connected to the hydraulic filter press; the filter cloth traction system comprises a driving mechanism, filter cloth clamping mechanisms, and redirecting rollers; the driving mechanism and the filter cloth clamping mechanisms are connected to the frame, and the driving mechanism is connected to the filter cloth clamping mechanisms; the plurality of redirecting rollers are respectively connected to the frame and the filter plate; an upper filter cloth and a lower filter cloth comprised in the filter cloth are respectively annular filter cloths connected end to end; the upper filter cloth and / or the lower filter cloth are / is arranged in the clamping space of the filter cloth clamping mechanisms and wound around the redirecting rollers outside the filter plate; and the stacked upper filter cloth and lower filter cloth are respectively wound around the redirecting rollers inside the filter plate and placed in the filter pressing space of the filter plate. The dewatering machine of the present invention realizes continuous automatic dewatering production by means of double annular filter cloths, and has strong tensile strength, high efficiency, low energy consumption, and long service life.

Description

Annular filter cloth space multi-layer vertical filter press dewatering machine Technical Field

[0001] This invention belongs to the technical field of mechanical pressure filtration and dewatering of materials, and in particular relates to a spatial multi-layer vertical pressure filtration and dewatering machine for annular filter cloth. Background Technology

[0002] Most organic waste generated in daily life and production has a moisture content of 70% to 80% or higher. To effectively manage and utilize this organic waste, turning it into a valuable resource, dehydration is crucial to minimize its moisture content. Mechanical dehydration is a commonly used and fastest method. Commonly used equipment for organic waste dehydration includes belt filter presses, plate and frame filter presses, screw presses, centrifugal dehydrators, vacuum filtration dehydrators, and multi-layer vertical filter presses. Multi-layer vertical filter presses are particularly effective at reducing the moisture content of most high-moisture organic waste to below 50% or even 40%, leading to their widespread application in the dehydration of municipal sludge, cassava starch residue, and sugar refining filter mud.

[0003] However, the multi-layer vertical filter press dewatering machines currently promoted and applied in the market still have many technical problems that urgently need improvement. For example, some filter cloths are discontinuous and non-circular, making it impossible to achieve continuous dewatering production with simultaneous feeding and unloading on the same set of filter cloths. This results in low automation and a gap between the actual needs of continuous operation and automation. While some filter cloths do achieve continuous dewatering production with simultaneous feeding and unloading on the same set of filter cloths, improving the automation level, the length of the filter cloth is severely limited. The filter cloth is easily subjected to frequent high-pressure mechanical compression, resulting in a relatively short service life and requiring frequent replacement and seam stitching, thus affecting the overall efficiency of the equipment. In addition, the filter cloths currently used are generally thin and have poor tensile strength, making them prone to stretching during use. This causes the "fixed-length" filter cloth to be continuously stretched during dewatering production. To maintain a certain tension, the stroke of the tensioning rollers needs to be constantly adjusted, and the number of tensioning rollers may need to be increased at appropriate times, often causing production interruptions and affecting the energy consumption, lifespan, and dewatering efficiency of the equipment.

[0004] Therefore, there is an urgent need for a spatial multi-layer vertical filter press dewatering machine for annular filter cloth to solve the technical problems existing in the above-mentioned spatial multi-layer vertical filter press dewatering machines, so as to better help various industries to "reduce pollution and carbon emissions" and reduce costs and increase efficiency. Summary of the Invention

[0005] This invention provides a spatial multi-layer vertical filter press dewatering machine for annular filter cloth, which solves the above-mentioned problems of current spatial multi-layer vertical filter press dewatering machines.

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

[0007] This invention provides a spatial multi-layer vertical filter press dewatering machine for annular filter cloth. The spatial multi-layer vertical filter press dewatering machine includes: a frame, a cloth feeder, a filter press hydraulic press, a filter plate, filter cloth, and a filter cloth traction system. The cloth feeder, the filter press hydraulic press, and the filter cloth traction system are sequentially connected and installed on the frame. The filter plate is connected and installed on the filter press hydraulic press. The filter cloth traction system includes a drive mechanism, a filter cloth clamping mechanism, and a redirecting roller. The drive mechanism and the filter cloth clamping mechanism are connected and installed on the frame, and the drive mechanism is connected to the filter cloth. A clamping mechanism is connected; multiple redirecting rollers are respectively connected and installed on the frame and the filter press plate; the filter cloth includes an upper filter cloth and a lower filter cloth; the upper filter cloth and the lower filter cloth are respectively annular filter cloths connected end to end; the upper filter cloth and the lower filter cloth are partially overlapped and wound around the redirecting rollers inside the filter press plate, and the partially overlapped upper filter cloth and the lower filter cloth are simultaneously placed in the filter press space of the filter press plate; the upper filter cloth and / or the lower filter cloth are arranged in the clamping space of the filter cloth clamping mechanism and the unoverlapped part is wound around the redirecting roller outside the filter press plate.

[0008] In one optional embodiment of the present invention, the drive mechanism includes a drive geared motor, a drive shaft, a drive synchronous pulley or drive synchronous sprocket, a redirecting synchronous pulley or redirecting synchronous sprocket, and a drive synchronous belt or drive synchronous chain; the drive geared motor is connected and mounted on the frame, the geared motor is connected to the drive shaft, the drive synchronous pulley or drive synchronous sprocket is connected and mounted on the drive shaft, the redirecting synchronous pulley or redirecting synchronous sprocket is connected and mounted on the frame, and the drive synchronous belt or drive synchronous chain is connected and mounted on the drive synchronous pulley or drive synchronous sprocket, and also connected and mounted on the redirecting synchronous pulley or redirecting synchronous sprocket.

[0009] As an optional embodiment of the present invention, the filter cloth clamping mechanism includes a slide rail, a slider, a fixed clamping plate, a movable clamping plate, and a traction link. The slide rail is connected and installed on the frame, the slider is slidably installed on the slide rail, the fixed clamping plate is connected to the slider, and the traction link is respectively hinged to the fixed clamping plate, the movable clamping plate, the drive timing belt, or the drive timing chain.

[0010] In an optional embodiment of the present invention, the driving mechanism includes a driving cylinder; the driving cylinder is connected and mounted on the frame; the traction link is respectively hinged to the fixed clamping plate, the movable clamping plate and the piston rod of the driving cylinder.

[0011] As an optional embodiment of the present invention, the spatial multi-layer vertical filter press dewatering machine further includes a filter cloth folding mechanism; the filter cloth folding mechanism is installed between the filter press hydraulic press and the cloth feeding machine.

[0012] As an optional embodiment of the present invention, the filter cloth traction system further includes an upper filter cloth buffer device and a lower filter cloth buffer device; the upper filter cloth buffer device is connected between the filter cloth clamping mechanism and the filter cloth folding mechanism on the annular loop of the un-overlapped portion of the upper filter cloth, and the lower filter cloth buffer device is connected between the filter cloth clamping mechanism and the cloth feeding machine on the annular loop of the un-overlapped portion of the upper filter cloth; the upper filter cloth buffer device includes an upper filter cloth receiving and feeding roller group and an upper filter cloth stacking box, the upper filter cloth receiving and feeding roller group being located at... The upper filter cloth stacking box is located above the upper filter cloth stacking box and is connected to the upper filter cloth stacking box, respectively, and is installed on the frame above the filter cloth clamping mechanism; the lower filter cloth buffer device includes a lower filter cloth receiving and feeding roller group and a lower filter cloth stacking box. The lower filter cloth receiving and feeding roller group is located above the lower filter cloth stacking box and is connected to the lower filter cloth stacking box, respectively, and is installed on the frame below the filter cloth clamping mechanism; at least one roller in each of the roller groups of the upper filter cloth receiving and feeding roller group and the lower filter cloth receiving and feeding roller group is a powered roller.

[0013] As an optional embodiment of the present invention, the spatial multi-layer vertical filter press dewatering machine further includes an upper filter cloth correction mechanism and a lower filter cloth correction mechanism; the upper filter cloth correction mechanism is arranged on the annular loop of the un-overlapped portion of the upper filter cloth, including an upper correction frame and an upper correction ratchet belt conveyor, wherein the upper correction ratchet belt conveyor is installed at both ends of the upper correction frame, and at least one pair of upper correction ratchet belt conveyors with opposite directions of movement is arranged at the upper and lower parts of each end, and the upper filter cloth is arranged between each pair of upper correction ratchet belt conveyors with opposite directions of movement; the lower filter cloth correction mechanism is arranged on the un-overlapped portion of the lower filter cloth. The overlapping part of the annular loop includes a lower correction frame and a lower correction ratchet belt conveyor; the lower correction ratchet belt conveyor is installed at both ends of the lower correction frame, and at least one pair of lower correction ratchet belt conveyors with opposite directions of movement is provided at the upper and lower parts of each end, and the lower filter cloth is placed between each pair of lower correction ratchet belt conveyors with opposite directions of movement; wherein, the upper correction frame is connected and installed on the frame between the filter cloth traction system and the filter cloth folding mechanism; the lower correction frame is connected and installed on the frame between the filter cloth traction system and the cloth laying machine.

[0014] As an optional embodiment of the present invention, the spatial multi-layer vertical filter press dewatering machine further includes a filter cloth edge spreading mechanism; the filter cloth edge spreading mechanism includes an edge spreading frame and an edge spreading ratchet belt conveyor; the edge spreading frame is connected and installed above the stacked upper filter cloth and the lower filter cloth and is located on the frame between the filter press hydraulic press and the filter cloth clamping mechanism; the edge spreading ratchet belt conveyor is installed at both ends of the edge spreading frame, and at least one pair of edge spreading ratchet belt conveyors with opposite directions of movement is provided at both ends.

[0015] As an optional embodiment of the present invention, the redirecting roller is a powered roller and / or a non-powered roller.

[0016] As an optional embodiment of the present invention, the spatial multi-layer vertical filter press dewatering machine further includes filter cloth retaining rings; the filter cloth retaining rings are connected and installed at both ends of the redirecting roller.

[0017] In an optional embodiment of the present invention, the width of the upper filter cloth is smaller than the width of the lower filter cloth.

[0018] As an optional embodiment of the present invention, the upper filter cloth and the lower filter cloth stacked in the filter press space are in a continuous N-shaped form, and the redirecting roller is located at the turning point within the N-shaped form.

[0019] Compared with the prior art, the present invention has significant advantages and beneficial effects. Through the above technical solution, the spatial multi-layer vertical pressure filter dewatering machine for annular filter cloth of the present invention has at least the following advantages and beneficial effects:

[0020] I. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth of the present invention comprises annular filter cloths, the upper filter cloth and the lower filter cloth being connected end to end; the upper filter cloth and the lower filter cloth are partially overlapped and wound around the redirecting roller inside the filter press plate, and the partially overlapped upper filter cloth and the lower filter cloth are simultaneously placed in the filter press space of the filter press plate; the upper filter cloth and / or the lower filter cloth are arranged in the clamping space of the filter cloth clamping mechanism and the unoverlapped portion is wound around the redirecting roller outside the filter press plate. By using the annular filter cloths formed by the upper filter cloth and the lower filter cloth being connected end to end, continuous dewatering production is achieved on the same set of filter cloths with automatic feeding and automatic unloading, and the operation of the equipment is highly automated.

[0021] II. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth of the present invention adopts a filter cloth traction system at the unloading end. The filter cloth traction system includes a drive mechanism, a filter cloth clamping mechanism, and redirecting rollers. The drive mechanism and the filter cloth clamping mechanism are connected and installed on the frame, and the drive mechanism is connected to the filter cloth clamping mechanism. Multiple redirecting rollers are respectively connected and installed on the frame and the filter press plate to form an annular filter cloth conveyor belt with "clamping traction, tight in front and loose in back". This overcomes the problem that "fixed length" filter cloth is easily stretched during use, avoids easy deformation of filter cloth tension, and improves the efficiency of dewatering operation.

[0022] III. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth of the present invention further includes an upper filter cloth buffer device and a lower filter cloth buffer device through the filter cloth traction system; the upper filter cloth buffer device is connected between the filter cloth clamping mechanism and the filter cloth folding mechanism on the annular loop of the un-overlapped portion of the upper filter cloth, and the lower filter cloth buffer device is connected between the filter cloth clamping mechanism and the cloth feeding machine on the annular loop of the un-overlapped portion of the upper filter cloth; the upper filter cloth buffer device includes an upper filter cloth receiving and feeding roller group and an upper filter cloth stacking box, and the upper filter cloth receiving and feeding cloth is set therein. The roller assembly is located above the upper filter cloth stacking box and is connected to the upper filter cloth stacking box, respectively, and installed on the frame above the filter cloth clamping mechanism. The lower filter cloth buffer device includes a lower filter cloth feeding roller assembly and a lower filter cloth stacking box. The lower filter cloth feeding roller assembly is located above the lower filter cloth stacking box and is connected to the lower filter cloth stacking box, respectively, and installed on the frame below the filter cloth clamping mechanism. At least one roller in each of the upper and lower filter cloth feeding roller assemblies is a powered roller. This invention enables the use of long-length, non-standard-length annular filter cloths in a spatial multi-layer vertical pressure filter dewatering machine for annular filter cloths. The frequency of high-pressure compression of the filter cloth is significantly reduced, enhancing the tensile strength of the annular filter cloth and greatly increasing its service life. Frequent replacement and seam stitching are unnecessary, significantly improving overall dewatering efficiency and reducing energy consumption.

[0023] IV. The present invention also includes an upper filter cloth correction mechanism set on the annular loop of the un-overlapped portion of the upper filter cloth, comprising an upper correction frame and an upper correction ratchet belt conveyor. The upper correction ratchet belt conveyor is installed at both ends of the upper correction frame, with at least one pair of upper correction ratchet belt conveyors moving in opposite directions at the upper and lower parts of each end. The upper filter cloth is disposed between each pair of upper correction ratchet belt conveyors moving in opposite directions. A lower filter cloth correction mechanism is also set on the annular loop of the un-overlapped portion of the lower filter cloth, comprising a lower correction frame and a lower correction ratchet belt conveyor. The lower correction ratchet belt conveyor is installed at both ends of the lower correction frame, with at least one pair of upper correction ratchet belt conveyors moving in opposite directions at the upper and lower parts of each end. At least one pair of downward-aligning ratchet belt conveyors with opposite directions of movement are provided, with the lower filter cloth positioned between each pair of such conveyors. The upper alignment frame is connected and installed on the frame between the filter cloth traction system and the filter cloth folding mechanism. The lower alignment frame is connected and installed on the frame between the filter cloth traction system and the cloth feeding machine. This design eliminates the need for the filter cloth to be tensioned throughout the entire dewatering process. As the filter cloth is continuously stretched during dewatering, there is no need to interrupt the production process or adjust the tension, resulting in a more continuous dewatering operation and further improving dewatering efficiency.

[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 is a front view schematic diagram of the overall structure of Embodiment 1 of the present invention.

[0026] Figure 2 is a structural schematic diagram of a partial enlarged view of point A in Embodiment 1 of the present invention.

[0027] Figure 3 is a front view schematic diagram of the overall structure of Embodiment 2 of the present invention.

[0028] Figure 4 is a structural schematic diagram of a partial enlarged view of point B in Embodiment 2 of the present invention.

[0029] Figure 5 is a front view schematic diagram of another overall structure in Embodiment 2 of the present invention.

[0030] Figure 6 is a front view schematic diagram of the overall structure of Embodiment 3 of the present invention.

[0031] Figure 7 is a structural schematic diagram of a partial enlarged view of point C in Embodiment 3 of the present invention.

[0032] Figure 8 is a front view schematic diagram of the overall structure of Embodiment 4 of the present invention.

[0033] Figure 9 is a structural schematic diagram of a partial enlarged view of point D in Embodiment 4 of the present invention.

[0034] Figure 10 is a side view schematic diagram of the structure of the filter cloth correction mechanism in Embodiment 4 of the present invention.

[0035] Figure 11 is a side view schematic diagram of the structure of the filter cloth correction mechanism in Embodiment 4 of the present invention.

[0036] Figure 12 is a front view schematic diagram of the overall structure of Embodiment 5 of the present invention.

[0037] Figure 13 is a structural schematic diagram of a partial enlarged view of point E in Embodiment 5 of the present invention.

[0038] Figure 14 is a side view schematic diagram of the structure of the filter cloth spreading mechanism in Embodiment 5 of the present invention.

[0039] Reference numerals: 1: Frame; 2: Fabric feeder; 3: Hydraulic filter press; 4: Filter plate; 5: Upper filter cloth; 6: Lower filter cloth; 7: Filter cloth traction system; 71: Drive mechanism; 711: Drive geared motor; 712: Drive shaft; 713: Drive synchronous pulley; 714: Idling synchronous pulley; 715: Drive synchronous belt; 716: Drive cylinder; 72: Filter cloth clamping mechanism; 721: Slide rail; 722: Slider; 723: Fixed clamping plate; 724: Movable clamping plate; 725: Traction link; 73: Idling roller; 731: Powered roller; 732: Unpowered roller. 33: Filter cloth retaining ring; 74: Upper filter cloth buffer device; 741: Upper filter cloth receiving and feeding roller group; 742: Upper filter cloth stacking box; 75: Lower filter cloth buffer device; 751: Lower filter cloth receiving and feeding roller group; 752: Lower filter cloth stacking box; 8: Filter cloth folding mechanism; 9: Upper filter cloth correction mechanism; 91: Upper correction frame; 92: Upper correction ratchet belt conveyor; 10: Lower filter cloth correction mechanism; 101: Lower correction frame; 102: Lower correction ratchet belt conveyor; 11: Filter cloth edge spreading mechanism; 111: Edge spreading frame; 112: Edge spreading ratchet belt conveyor. Detailed Implementation

[0040] 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, describes the specific implementation, structure, features, and effects of the spatial multi-layer vertical filter press dewatering machine for annular filter cloth provided by the present invention.

[0041] Example 1

[0042] As shown in Figures 1 and 2, the spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to Embodiment 1 of the present invention includes a frame 1, a cloth feeder 2, a filter press hydraulic press 3, a filter press plate 4, filter cloth, and a filter cloth traction system 7. The cloth feeder 2, the filter press hydraulic press 3, and the filter cloth traction system 7 are sequentially connected and installed on the frame 1. The filter press plate 4 is connected and installed on the filter press hydraulic press 3. The filter cloth traction system 7 includes a drive mechanism 71, a filter cloth clamping mechanism 72, and redirecting rollers 73. The drive mechanism 71 and the filter cloth clamping mechanism 72 are connected and installed on the frame 1, and the drive mechanism 71 is connected to the filter cloth clamping mechanism 72. A plurality of redirecting rollers 73 are respectively connected and installed on the frame 1 and the filter press plate 4. As shown in Figure 1, the redirecting roller 73 can be installed at the turning part of the filter cloth fold inside the filter press plate 4, or it can be set at both ends of the upper surface of the filter press plate 4 outside the filter press plate 4, or at other suitable positions of the frame 1 away from the filter press plate 4. The filter cloth includes a double-ring filter cloth composed of an independent upper filter cloth 5 and a lower filter cloth 6; the upper filter cloth 5 and the lower filter cloth 6 are ring filter cloths connected end to end; a portion of the upper filter cloth 5 and a portion of the lower filter cloth 6 are overlapped together along the length of the filter cloth, with the upper filter cloth 5 located above the lower filter cloth 6. The upper filter cloth 5 and the lower filter cloth 6 are partially overlapped and wound around the redirecting roller 73 inside the filter press plate 4, and the partially overlapped upper filter cloth 5 and the lower filter cloth 6 are simultaneously placed in the filter press space of the filter press plate 4; the upper filter cloth 5 and / or the lower filter cloth 6 are placed in the clamping space of the filter cloth clamping mechanism 72 and the unoverlapped portion is wound around the redirecting roller 73 outside the filter press plate 4. The upper filter cloth 5 and the lower filter cloth 6 are stacked in the filter press space. The upper filter cloth 5 and the lower filter cloth 6 are in a continuous N-shape, and the redirecting roller 73 is located at the turning point within the N-shape.

[0043] In this embodiment, optionally, the redirecting roller 73 inside the filter press 3 can be a powered roller 731 or a non-powered roller 732, or it can be a plurality of powered rollers 731 and non-powered rollers 732 arranged at intervals.

[0044] In this embodiment, optionally, as shown in FIG1, the drive mechanism 71 includes a drive reduction motor 711, a drive shaft 712, a drive synchronous pulley 713 or a drive synchronous sprocket, a redirecting synchronous pulley 714 or a redirecting synchronous sprocket, and a drive synchronous belt 715 or a drive synchronous chain. The drive reduction motor 711 is connected and mounted on the frame 1, the reduction motor is connected to the drive shaft 712, the drive synchronous pulley 713 or the drive synchronous sprocket is connected to the drive shaft 712, the redirecting synchronous pulley 714 or the redirecting synchronous sprocket is connected and mounted on the frame 1, and the drive synchronous belt 715 or the drive synchronous chain is connected and mounted on the drive synchronous pulley 713 or the drive synchronous sprocket, and is also connected and mounted on the redirecting synchronous pulley 714 or the redirecting synchronous sprocket. This invention provides various types of synchronous pulleys (such as drive synchronous pulley 713 and redirecting synchronous pulley 714), which, through the meshing of the toothed belt with the toothed grooves of the synchronous pulleys, achieve slippage-free synchronous transmission with accurate transmission ratio, thus improving the high precision requirements of synchronous transmission in the drive mechanism 71. This invention also provides various types of synchronous sprockets (such as drive synchronous sprockets and redirecting synchronous sprockets). The compact structure of these synchronous sprockets ensures that, under high temperatures and heavy loads or high-speed operation, the drive mechanism 71 can achieve unidirectional transmission of all synchronous sprockets within the drive mechanism 71 through chain-sprocket meshing, eliminating elastic slippage and slippage, ensuring the accuracy of the average transmission ratio during drive transmission, and guaranteeing the stability of drive transmission.

[0045] In this embodiment, optionally, as shown in FIG2, the filter cloth clamping mechanism 72 includes a slide rail 721, a slider 722, a fixed clamping plate 723, a movable clamping plate 724, and a traction link 725. The slide rail 721 is connected and installed on the frame 1, the slider 722 is slidably installed on the slide rail 721, the fixed clamping plate 723 is connected to the slider 722, and the traction link 725 is hinged to the fixed clamping plate 723, the movable clamping plate 724, the drive timing belt 715, or the drive timing chain. The filter cloth clamping mechanism 72 can also be configured such that the slide rail 721, the slider 722, and the movable clamping plate 724 located upstream of the filter cloth face downstream of the filter cloth (not shown in the figure). When the drive timing belt 715 or drive timing chain drives the traction link 725 to reciprocate in different directions, it simultaneously drives the traction link 725 to rotate around the hinge point of the fixed clamping plate 723 and drives the movable clamping plate 724 to run. The movable clamping plate 724 clamps and pulls the upper filter cloth 5 and / or the lower filter cloth 6 to move simultaneously and in the same direction, or releases the upper filter cloth 5 and the lower filter cloth 6 to return to the clamping origin (wherein, the movable clamping plate 724 clamps and pulls the upper filter cloth 5 alone, or the lower filter cloth 6 moves in the same direction, as shown in Figure 1).

[0046] In this embodiment, the redirecting roller 73 may be a non-powered roller 732.

[0047] Example 2

[0048] As shown in Figures 3, 4, and 5, the spatial multi-layer vertical filter press dewatering machine for annular filter cloth in Embodiment 2 of the present invention is similar to that in Embodiment 1, with the only difference being:

[0049] In this embodiment, the filter cloth clamping mechanism 72 includes two sets, which are arranged vertically. The upper filter cloth 5 passes through the clamping space of the upper filter cloth clamping mechanism 72, while the lower filter cloth 6 passes through the clamping space of the lower filter cloth clamping mechanism 72.

[0050] In this embodiment, optionally, as shown in FIG4, the drive mechanism 71 can be replaced by a drive cylinder 716. The drive cylinder 716 includes, but is not limited to, any one of a hydraulic cylinder, pneumatic cylinder, or electric cylinder. The hydraulic cylinder, pneumatic cylinder, or electric cylinder 716 is connected and installed on the frame 1. The traction connecting rod 725 is respectively hinged to the fixed clamping plate 723, the movable clamping plate 724, and the piston rod of the hydraulic cylinder, pneumatic cylinder, and electric cylinder.

[0051] In this embodiment, optionally, as shown in FIG4, the filter cloth clamping mechanism 72 can be configured in an inverted manner, with the slide rail 721, slider 722, and movable clamping plate 724 located upstream of the filter cloth facing downstream of the filter cloth. The driving mechanism 71 is hinged to the driving cylinder 716 on the frame 1; the driving cylinder 716 is connected and installed on the frame 1; the traction connecting rod 725 is respectively hinged to the fixed clamping plate 723, the movable clamping plate 724, and the piston rod of the driving cylinder 716.

[0052] In order to improve the filtration efficiency after the material is placed in the center of the lower filter cloth 6 by the material feeder 2 and before the material is sandwiched between the upper filter cloth 5 and the lower filter cloth 6 and enters the hydraulic press 3 for filtration, a filter cloth folding mechanism 8 is added. The filter cloth folding mechanism 8 is installed between the hydraulic press 3 and the material feeder 2 to reliably and stably fold the two sides of the upper filter cloth 5 and the lower filter cloth 6 at 180°, and to lock the material between the upper filter cloth 5 and the lower filter cloth 6, so as to prevent the material from leaking from the two sides of the upper filter cloth 5 and the lower filter cloth 6 during filtration, thereby further improving the filtration efficiency.

[0053] In Embodiment 1 or this embodiment, optionally, as shown in Figure 5, the spatial multi-layer vertical filter press dewatering machine further includes a filter cloth retaining ring 733; the filter cloth retaining ring 733 is connected and installed at both ends of the redirecting roller 73. To ensure the accuracy of the overlapping portion of the upper filter cloth 5 and lower filter cloth 6 on the redirecting roller 73, which are partially overlapped and wound within the filter press plate 4, and to prevent the upper filter cloth 5 and lower filter cloth 6 from deviating significantly from the filtration range of the filter press plate 4, a filter cloth retaining ring 733 is added; the filter cloth retaining ring 733 is connected and installed at both ends of the redirecting roller 73, primarily on the two end faces of the redirecting roller 73 at both ends of the filter press plate 4. When the filter cloth retaining ring 733 is added to the redirecting roller 73 within the filter press plate 4 in Embodiment 1, the arrangement of the filter cloth retaining ring 733 in Figure 5 of Embodiment 2 is referenced and will not be repeated here.

[0054] Example 3

[0055] As shown in Figures 6 and 7, the spatial multi-layer vertical filter press dewatering machine for annular filter cloth in Embodiment 3 of the present invention is similar to that in Embodiment 1, with the only difference being:

[0056] To maximize the length of the upper filter cloth 5 and the lower filter cloth 6, reduce the number of times the first and second connections of the upper filter cloth 5 and the lower filter cloth 6 are replaced and sewn together, and extend the service life of the filter cloth, the filter cloth traction system 7 is equipped with an upper filter cloth buffer device 74 and a lower filter cloth buffer device 75. The upper filter cloth buffer device 74 is connected and installed between the filter cloth clamping mechanism 72 and the filter cloth folding mechanism 8, and the lower filter cloth buffer device 75 is connected and installed between the filter cloth clamping mechanism 72 and the cloth feeding machine 2.

[0057] In this embodiment, the upper filter cloth buffer device 74 consists of an upper filter cloth feeding roller group 741 and an upper filter cloth stacking box 742. The upper filter cloth feeding roller group 741 is located above the upper filter cloth stacking box 742 and is connected to the upper filter cloth stacking box 742 and installed on the frame 1 above the filter cloth clamping mechanism 72.

[0058] In this embodiment, the lower filter cloth buffer device 75 consists of a lower filter cloth feeding roller group 751 and a lower filter cloth stacking box 752. The lower filter cloth feeding roller group 751 is located above the lower filter cloth stacking box 752 and is connected to the lower filter cloth stacking box 752 and installed on the frame 1 below the filter cloth clamping mechanism 72.

[0059] In this embodiment, the upper filter cloth receiving roller group 741 and the lower filter cloth receiving roller group 751 each have two rollers forming a roller group, one of which is a powered roller and the other is a non-powered roller. The powered roller and the non-powered roller are squeezed together by an elastic mechanism and connected by friction, so that the upper filter cloth receiving roller group 741 and the lower filter cloth receiving roller group 751 can transfer the upper filter cloth 5 and the lower filter cloth 6 driven and pulled by the filter cloth clamping mechanism 72 at the same speed, and synchronously transfer the upper filter cloth 5 to the upper filter cloth stacking box 742 above, and synchronously transfer the lower filter cloth 6 to the lower filter cloth stacking box 752 below.

[0060] In this embodiment, optionally, the filter cloth clamping mechanism 72 may only clamp the upper filter cloth 5 within the clamping space of the filter cloth clamping mechanism 72. The filter cloth clamping mechanism 72 drives and pulls the upper filter cloth 5, which in turn drives the lower filter cloth 6, and synchronously transmits the upper filter cloth 5 to the upper filter cloth stacking box 742 above, and synchronously transmits the lower filter cloth 6 to the lower filter cloth stacking box 752 below.

[0061] In this embodiment, optionally, the filter cloth clamping mechanism 72 can also be set up in an inverted manner, clamping only the lower filter cloth 6 in the clamping space of the filter cloth clamping mechanism 72. The filter cloth clamping mechanism 72 drives and pulls the lower filter cloth 6, which in turn drives the upper filter cloth 5, and synchronously transmits the upper filter cloth 5 to the upper filter cloth stacking box 742 above, and synchronously transmits the lower filter cloth 6 to the lower filter cloth stacking box 752 below.

[0062] Example 4

[0063] As shown in Figures 8 to 11, the annular filter cloth space multi-layer vertical filter press dewatering machine of Embodiment 4 of the present invention is similar to that of Embodiment 3, with the only difference being:

[0064] To ensure the filter material is better positioned in the center of the lower filter cloth 6 and to better align the upper filter cloth 5 and the lower filter cloth 6, and to prevent material leakage during filtration via the filter cloth folding mechanism 8, a correction frame is added and installed. This correction frame includes an upper filter cloth correction mechanism 9 and a lower filter cloth correction mechanism 10. The upper filter cloth correction mechanism 9 is located on the annular loop of the unfolded portion of the upper filter cloth 5 and includes an upper correction frame 91 and an upper correction ratchet belt conveyor 92. The upper correction ratchet belt conveyor 92 is installed at both ends of the upper correction frame 91, with at least one pair of upper correction ratchet belt conveyors 92 moving in opposite directions at the upper and lower parts of each end. The upper filter cloth 5 is positioned between each pair of upper correction ratchet belt conveyors 92 moving in opposite directions. The lower filter cloth correction mechanism 10 is disposed on the annular loop of the un-overlapped portion of the lower filter cloth 6, and includes a lower correction frame 101 and a lower correction ratchet belt conveyor 102. The lower correction ratchet belt conveyor 102 is installed at both ends of the lower correction frame 101, and at least one pair of lower correction ratchet belt conveyors 102 with opposite directions of movement is provided at the upper and lower parts of each end. The lower filter cloth 6 is disposed between each pair of lower correction ratchet belt conveyors 102 with opposite directions of movement. For example, the upper correction ratchet belt conveyor 92 is installed at both ends of the upper correction frame 91, and the lower correction ratchet belt conveyor 102 is installed at both ends of the lower correction frame 101, with three correction ratchet belt conveyors installed at the upper and lower positions of each end. For example, one upper correction ratchet belt conveyor 92 is located above the upper filter cloth 5 at that end, and the other two correction ratchet belt conveyors 92 are located below the upper filter cloth 5 at that end, and are symmetrically arranged along the running direction of the upper filter cloth 5. For example, one of the lower correction ratchet belt conveyors 102 is located above the lower filter cloth 6 at this end, and the other two lower correction ratchet belt conveyors 102 are located below the lower filter cloth 6 at this end, and are symmetrically arranged along the running direction of the lower filter cloth 6. The upper correction frame 91 is connected and installed on the frame 1 between the upper filter cloth buffer device 74 and the filter cloth folding mechanism 8, and the upper filter cloth 5 passes through the upper upper correction ratchet belt conveyor 92 and the two symmetrically arranged upper correction ratchet belt conveyors 92 below. The lower correction frame 101 is connected and installed on the frame 1 between the lower filter cloth buffer device 75 and the cloth feeding machine 2. The lower filter cloth 6 passes between one lower correction ratchet belt machine 102 above and two lower correction ratchet belt machines 102 symmetrically arranged below, so that when the upper filter cloth 5 or the lower filter cloth 6 deviates to one side, it can be automatically pulled to the other side and reset to the center position by the upper correction ratchet belt machine 92 or the lower correction ratchet belt machine 102.

[0065] Example 5

[0066] As shown in Figures 12 to 14, the spatial multi-layer vertical filter press dewatering machine for annular filter cloth in Embodiment 5 of the present invention is similar to that in Embodiment 4, except that:

[0067] To ensure that the folds of the upper filter cloth 5 and the lower filter cloth 6 are opened more stably and reliably after filtration, so as to better meet the needs of the filter cloth clamping mechanism 72 to drive and pull the upper filter cloth 5 and / or the lower filter cloth 6, and to more completely and cleanly unload the filter material between the upper filter cloth 5 and the lower filter cloth 6, a filter cloth edge spreading mechanism 11 is added and installed. The filter cloth edge spreading mechanism 11 consists of an edge spreading frame 111 and an edge spreading ratchet belt conveyor 112. The edge spreading frame 111 is connected and installed on the frame 1 above the stacked upper filter cloth 5 and the lower filter cloth 6 and located between the last filter press hydraulic press 3 and the filter cloth clamping mechanism 72. The edge-unfolding ratchet belt machine 112 is installed at both ends of the edge-unfolding frame 111, with one edge-unfolding ratchet belt machine 112 installed at each end. The edge-unfolding ratchet belt machines 112 at both ends move in opposite directions, unfolding the folded edges of the upper filter cloth 5 and the lower filter cloth 6 from the inside out to both sides.

[0068] In order to reduce the tension on the upper filter cloth 5 and / or the lower filter cloth 6 at a single point by the drive mechanism 71 of the filter cloth traction system 7, and to improve the service life of the upper filter cloth 5 and the lower filter cloth 6, in this embodiment, optionally, the redirecting roller 73 is replaced by a power roller 731.

[0069] In this embodiment, since the filter material is wrapped and pressed by the upper filter cloth 6 after the fabric is folded upward, optionally, the upper filter cloth 5 is designed to be narrower than the lower filter cloth 6. The filter cloth folding mechanism 8 folds the upper filter cloth 5 and the lower filter cloth 6 more neatly and saves more filter cloth material.

[0070] The above are merely optional embodiments of this application and are not intended to limit this application in any way. Although this application has disclosed optional embodiments as above, it is not intended to limit this application. 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 technical solution of this application. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A spatial multi-layer vertical filter press dewatering machine for annular filter cloth, comprising a frame (1), a cloth feeder (2), a filter press hydraulic press (3), a filter press plate (4), filter cloth, and a filter cloth traction system (7), wherein, The cloth feeding machine (2), the filter press hydraulic press (3), and the filter cloth traction system (7) are sequentially connected and installed on the frame (1); the filter plate (4) is connected and installed on the filter press hydraulic press (3); the filter cloth traction system (7) includes a drive mechanism (71), a filter cloth clamping mechanism (72), and a redirecting roller (73); the drive mechanism (71) and the filter cloth clamping mechanism (72) are connected and installed on the frame (1), and the drive mechanism (71) is connected to the filter cloth clamping mechanism (72); a plurality of redirecting rollers (73) are respectively connected and installed on the frame (1) and the filter press hydraulic press. On the plate (4); the filter cloth includes an upper filter cloth (5) and a lower filter cloth (6); the upper filter cloth (5) and the lower filter cloth (6) are respectively annular filter cloths connected end to end; the upper filter cloth (5) and the lower filter cloth (6) are partially overlapped and wound around the redirecting roller (73) inside the filter press plate (4), and the partially overlapped upper filter cloth (5) and the lower filter cloth (6) are simultaneously placed in the filter press plate (4) filter press space; the upper filter cloth (5) and / or the lower filter cloth (6) are placed in the clamping space of the filter cloth clamping mechanism (72) and the unoverlapped part is wound around the redirecting roller (73) outside the filter press plate (4).

2. The annular filter cloth space multi-layer vertical filter press dewatering machine according to claim 1, wherein, The drive mechanism (71) includes a drive geared motor (711), a drive shaft (712), a drive synchronous pulley (713) or a drive synchronous sprocket, a redirecting synchronous pulley (714) or a redirecting synchronous sprocket, a drive synchronous belt (715) or a drive synchronous chain; The drive geared motor (711) is connected and installed on the frame (1). The geared motor is connected to the drive shaft (712). The drive synchronous pulley (713) or drive synchronous sprocket is connected to the drive shaft (712). The redirecting synchronous pulley (714) or redirecting synchronous sprocket is connected and installed on the frame (1). The drive synchronous belt (715) or drive synchronous chain is connected and installed on the drive synchronous pulley (713) or drive synchronous sprocket, and is also connected and installed on the redirecting synchronous pulley (714) or redirecting synchronous sprocket.

3. The annular filter cloth space multi-layer vertical filter press dewatering machine according to claim 1, wherein, The filter cloth clamping mechanism (72) includes a slide rail (721), a slider (722), a fixed clamping plate (723), a movable clamping plate (724), and a traction link (725). The slide rail (721) is connected and installed on the frame (1). The slider (722) is slidably installed on the slide rail (721). The fixed clamping plate (723) is connected to the slider (722). The traction link (725) is respectively hinged to the fixed clamping plate (723), the movable clamping plate (724), the drive timing belt (715), or the drive timing chain.

4. The annular filter cloth space multi-layer vertical filter press dewatering machine according to claim 3, wherein, The drive mechanism (71) includes a drive cylinder (716); the drive cylinder (716) is connected and mounted on the frame (1); The traction link (725) is hinged to the fixed clamping plate (723), the movable clamping plate (724), and the piston rod of the drive cylinder (716), respectively.

5. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, It also includes a filter cloth folding mechanism (8); the filter cloth folding mechanism (8) is installed between the filter press (3) and the cloth feeder (2).

6. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 5, wherein, The filter cloth traction system (7) further includes an upper filter cloth buffer device (74) and a lower filter cloth buffer device (75); the upper filter cloth buffer device (74) is connected between the filter cloth clamping mechanism (72) and the filter cloth folding mechanism (8) on the annular loop of the un-overlapped part of the upper filter cloth (5); the lower filter cloth buffer device (75) is connected between the filter cloth clamping mechanism (72) and the cloth feeder (2) on the annular loop of the un-overlapped part of the upper filter cloth (5). The upper filter cloth buffer device (74) includes an upper filter cloth receiving and feeding roller group (741) and an upper filter cloth stacking box (742). The upper filter cloth receiving and feeding roller group (741) is located above the upper filter cloth stacking box (742) and is connected to the upper filter cloth stacking box (742) and installed on the frame (1) above the filter cloth clamping mechanism (72). The lower filter cloth buffer device (75) includes a lower filter cloth receiving and feeding roller group (751) and a lower filter cloth stacking box (752). The lower filter cloth receiving and feeding roller group (751) is located above the lower filter cloth stacking box (752) and is connected to the lower filter cloth stacking box (752) and installed on the frame (1) below the filter cloth clamping mechanism (72). At least one roller in each of the upper filter cloth receiving roller group (741) and the lower filter cloth receiving roller group (751) is a powered roller (731).

7. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, It also includes an upper filter cloth correction mechanism (9) and a lower filter cloth correction mechanism (10); The upper filter cloth correction mechanism (9) is set on the annular loop of the un-overlapped part of the upper filter cloth (5), including an upper correction frame (91) and an upper correction ratchet belt conveyor (92). The upper correction ratchet belt conveyor (92) is installed at both ends of the upper correction frame (91). At least one pair of upper correction ratchet belt conveyors (92) with opposite directions of movement is set at the upper and lower parts of each end. The upper filter cloth (5) is set between each pair of upper correction ratchet belt conveyors (92) with opposite directions of movement. The lower filter cloth correction mechanism (10) is set on the annular loop of the un-overlapped part of the lower filter cloth (6), including a lower correction frame (101) and a lower correction ratchet belt conveyor (102); the lower correction ratchet belt conveyor (102) is installed at both ends of the lower correction frame (101), and at least one pair of lower correction ratchet belt conveyors (102) with opposite directions of movement is set at the upper and lower parts of each end, and the lower filter cloth (6) is set between each pair of lower correction ratchet belt conveyors (102) with opposite directions of movement; The upper correction frame (91) is connected and installed on the frame (1) between the filter cloth traction system (7) and the filter cloth folding mechanism (8); the lower correction frame (101) is connected and installed on the frame (1) between the filter cloth traction system (7) and the cloth laying machine (2).

8. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, It also includes a filter cloth edge spreading mechanism (11); the filter cloth edge spreading mechanism (11) includes an edge spreading frame (111) and an edge spreading ratchet belt conveyor (112); The edge spreading frame (111) is connected and installed above the stacked upper filter cloth (5) and the lower filter cloth (6) on the frame (1) between the filter press (3) and the filter cloth clamping mechanism (72); The edge-unraveling ratchet belt conveyor (112) is installed at both ends of the edge-unraveling frame (111), and at least one pair of edge-unraveling ratchet belt conveyors (112) with opposite directions of movement are provided at both ends.

9. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, The redirecting roller (73) is a powered roller (731) and / or a non-powered roller (732).

10. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, It also includes filter cloth retaining rings (733); the filter cloth retaining rings (733) are connected and installed at both ends of the redirecting roller (73).

11. The spatial multi-layer vertical filter press dewatering machine for annular filter cloth according to claim 1, wherein, The width of the upper filter cloth (5) is smaller than the width of the lower filter cloth (6).

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