Filter cloth folding mechanism
The filter cloth folding mechanism achieves longitudinal folding of the filter cloth and sealing of the cavity, which solves the problems of weak dewatering capacity and high cost caused by open filter cloth edges. It achieves efficient dewatering and retention of sludge calorific value, and has a good correction effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN DESHENG ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-01
AI Technical Summary
In existing technologies, the filter cloth is laid flat, which results in open edges. It is necessary to add agents to increase the strength of the sludge, but there are still problems such as weak dewatering capacity, high cost and reduced calorific value.
The filter cloth folding mechanism, including frame, idler rollers, drive roller group, trapezoidal support, edge suction device, limiting plate and correction structure, realizes longitudinal folding of filter cloth and formation of closed cavity, avoids sludge extrusion, and improves dewatering efficiency by combining correction function.
It can improve dehydration capacity, reduce costs, shorten dehydration time, increase pressing pressure, ensure no loss of sludge calorific value, and has a good correction function without the need for adding chemicals.
Smart Images
Figure CN224185557U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of municipal sludge treatment technology, and more specifically, to a filter cloth folding mechanism. Background Technology
[0002] The flat laying of the filter cloth results in an open structure at the edges. To prevent the sludge from being squeezed out during the pressing process, a large amount of chemicals are added to the sludge to change its properties and increase its strength. This leads to several problems, including: increased costs due to the large amount of chemicals added; increased difficulty in mechanical dewatering because the added chemicals strengthen the binding force between the bound water and the sludge, resulting in weaker dewatering capacity and longer dewatering time under a given mechanical dewatering pressure; and some of the added chemicals lacking calorific value, leading to a decrease in the calorific value of the dried sludge, which affects subsequent incineration treatment.
[0003] Meanwhile, although chemicals are added, the open structure still limits the pressing pressure. If the pressure is too high, the sludge will still be squeezed out from both sides of the filter cloth. Therefore, the moisture content of the dry sludge after mechanical dewatering by this process cannot reach below 50%.
[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a fabric folding mechanism that has both filter cloth folding and filter cloth correction functions, thereby solving the problems existing in the prior art.
[0006] To achieve the aforementioned filter cloth folding and correction functions, the specific technical solution adopted by this utility model is as follows:
[0007] A filter cloth folding mechanism includes a frame, idler rollers, drive roller assembly, trapezoidal support frame, first edge suction device, second edge suction device, bottom support frame, first folding limiting plate, second folding limiting plate, and a correction structure. The frame is installed on the operating ground. The idler rollers are installed at the top of one side of the frame. The drive roller assembly is installed at the other end of the frame. The trapezoidal support frame is installed at an angle on the frame. The second edge suction device is installed on one side of the trapezoidal support frame. The bottom support frame is horizontally installed on the frame. The first edge suction device is installed on both sides of the bottom support frame. The first folding limiting plate is horizontally inclined at one end of the bottom support frame. The second folding limiting plate is horizontally inclined at one end of the bottom support frame. A correction structure is connected to one side of the frame.
[0008] Furthermore, one end of the trapezoidal support is a long side, which is installed on one side of the idler roller, and the other end of the trapezoidal support is a short side, which is connected to the bottom support and is equipped with a pressure roller.
[0009] Furthermore, one side of the bottom support is connected to the trapezoidal support, and the other side of the bottom support is equipped with the drive roller assembly.
[0010] Furthermore, the correction structure includes a diagonal support frame, a correction roller, a drive shaft, a fixed frame, a through-hole support, a steering shaft, a correction airbag, a slider, a slide groove, and an adjusting airbag. A slide groove is fixedly installed on the diagonal support frame, and a slider is slidably connected in the slide groove. Correction airbags are symmetrically connected to the slider.
[0011] Furthermore, the symmetrical correction airbags are connected by a steering shaft, and a through-arm is rotatably connected to the steering shaft. A fixing frame is fixedly connected to both sides of the through-arm, and an adjusting airbag is connected to one side arm of the fixing frame. A drive shaft is slidably connected inside the through-arm.
[0012] Furthermore, a correction roller is fixedly connected to the drive shaft, and one side of the adjusting airbag is fixedly connected to one end of the drive shaft.
[0013] Compared with the prior art, the present invention provides a fabric stacking mechanism, which has the following beneficial effects:
[0014] A novel longitudinal folding mechanism for filter cloth is provided. Before applying the sludge, the cloth is first folded longitudinally into three folds to form a filter cloth wrap. A closed cavity is formed inside the filter cloth wrap. After the sludge is applied, the cloth is folded along its width. With this filter cloth configuration, no chemicals are needed for the sludge, and it will not be squeezed out within the closed cavity, saving significant chemical costs and effectively reducing operating costs during sludge dewatering. Without adding any chemicals, the sludge performance remains unaffected, correspondingly improving dewatering efficiency and shortening dewatering time. Because the sludge is within the closed cavity formed by the filter cloth, the pressing pressure mainly depends on the pressure that the filter cloth can withstand, thus greatly increasing the working pressure and further significantly improving dewatering capacity and shortening dewatering time. Simultaneously, this folded cloth structure has good deviation correction function. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the main structure of the fabric stacking mechanism according to an embodiment of the present utility model;
[0017] Figure 2 This is a schematic diagram of the trapezoidal support frame of the fabric stacking mechanism according to an embodiment of the present utility model;
[0018] Figure 3 This is a schematic diagram of the folding limiting plate of the fabric stacking mechanism according to an embodiment of the present utility model;
[0019] Figure 4 This is a schematic diagram of the inclined support frame of the fabric stacking mechanism according to an embodiment of the present utility model;
[0020] Figure 5 This is a schematic diagram of the correction structure of the fabric stacking mechanism according to an embodiment of the present utility model.
[0021] In the diagram: 1. Frame; 2. Idler roller; 3. Drive roller assembly; 4. Trapezoidal support; 5. First edge suction device; 6. Second edge suction device; 7. Bottom support; 701. Pressure roller; 8. First folding limit plate; 9. Second folding limit plate; 10. Correction structure; 101. Diagonal support; 102. Correction roller; 103. Drive shaft; 104. Fixing frame; 105. Through-hole support; 106. Steering shaft; 107. Correction airbag; 108. Slider; 109. Slide groove; 110. Adjustment airbag. Detailed Implementation
[0022] To further illustrate, the present invention is provided with accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.
[0023] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figure 1-5 As shown, the system includes a frame 1, idler rollers 2, drive roller assembly 3, trapezoidal support frame 4, first edge suction device 5, second edge suction device 6, bottom support frame 7, first folding limiting plate 8, second folding limiting plate 9, and a correction structure 10. The frame 1 is installed on the operating ground. The idler rollers 2 are installed at the top of one side of the frame 1. The drive roller assembly 3 is installed at the other end of the frame 1. The trapezoidal support frame 4 is installed at an angle on the frame 1. The second edge suction device 6 is installed on one side of the trapezoidal support frame 4. The bottom support frame 7 is installed horizontally on the frame 1. The first edge suction device 5 is installed on both sides of the bottom support frame 7. The first folding limiting plate 8, second folding limiting plate 9, and correction structure 10 are also present. The folding limit plate 8 is installed horizontally at one end of the bottom support 7, and the second folding limit plate 9 is installed horizontally at one end of the bottom support 7. A correction structure 10 is connected to one side of the frame 1. The filter cloth 12 enters from the bottom of the roller 2 and passes through the trapezoidal support 4. After passing the bottom edge of the trapezoidal support 4, the filter cloth 12 is folded upward on both sides and passes through the first edge suction device 5 and the second edge suction device 6. Then it is folded by the first folding limit plate 8 and the second folding limit plate 9. After being folded by the first folding limit plate 8 and the second folding limit plate 9, the filter cloth 12 is folded into three layers and is discharged from the drive roller group 3.
[0024] The idler roller 2, drive roller assembly 3, trapezoidal support frame 4, first edge suction device 5, second edge suction device 6, bottom support frame 7, first folding limit plate 8, and second folding limit plate 9 are all installed on the frame 1, providing support and fixation for all components of the fabric stacking mechanism. The idler roller 2 supports the filter cloth as it enters the fabric stacking mechanism. The drive roller assembly 3 provides driving force for the filter cloth's movement. The pressure roller of the trapezoidal support frame 4 prevents the filter cloth from wearing or getting stuck when it passes through. When the filter cloth passes through the trapezoidal support frame 4, it bends upward at both ends under the support of the bottom edge and the two inclined edges. The filter cloth is folded by a first edge suction device 5 and a second edge suction device 6 on both sides. The first edge suction device 5 and the second edge suction device 6 are respectively equipped with rollers that contact the surface of the filter cloth. The first edge suction device 5 and the second edge suction device 6 can guide and support the folding of the filter cloth 12, and have the functions of adjusting the lateral tension of the filter cloth, flattening the filter cloth, and eliminating the lateral wrinkles of the filter cloth. The bottom support frame 7 plays a supporting role during the folding process of the filter cloth. The first folding limit plate 8 plays a limiting and guiding role for folding one side of the filter cloth, and the second folding limit plate 9 plays a limiting and guiding role for folding the other side of the filter cloth.
[0025] One end of the trapezoidal support 4 is the long side, which is installed on one side of the roller 2. The other end of the trapezoidal support 4 is the short side, which is connected to the bottom support 7. The pressure roller 701 is installed on the short side. The filter cloth passes through the bottom of the pressure roller 701 to guide the forward direction of the filter cloth, and the two sides of the filter cloth 12 are folded at the short side.
[0026] One side of the bottom support 7 is connected to the trapezoidal support 4, and the other side of the bottom support 7 is equipped with a drive roller group 3.
[0027] The correction structure 10 includes a diagonal support frame 101, a correction roller 102, a drive shaft 103, a fixed frame 104, a through-hole bracket 105, a steering shaft 106, a correction airbag 107, a slider 108, a slide groove 109, and an adjusting airbag 110. A slide groove 109 is fixedly installed on the diagonal support frame 101. A slider 108 is slidably connected within the slide groove 109. Correction airbags 107 are symmetrically connected to the slider 108. A steering shaft 106 is connected between the symmetrical correction airbags 107. A through-hole bracket 105 is rotatably connected to the steering shaft 106. A fixed frame 104 is fixedly connected to both sides of the through-hole bracket 105. An adjusting airbag 110 is connected to one side of the fixed frame 104. A drive shaft 103 is slidably connected within the through-hole bracket 105. A correction roller 102 is fixedly connected to the drive shaft 103. One side of the adjusting airbag 110 is fixedly connected to one side of the drive shaft 103.
[0028] The correction airbag 107, connected to a pneumatic assembly, can adjust the position of the through-hole bracket 105 by controlling its expansion and contraction. This causes the two ends of the correction roller 102 to deflect, thereby correcting the filter cloth on the correction roller 102. Simultaneously, by controlling the expansion of the adjustment airbag 110, its unidirectional expansion can slide and adjust the relative position of the drive shaft 103 within the through-hole bracket 105, thereby changing the relative position of the correction roller 102 and the filter cloth, thus improving the correction efficiency.
[0029] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.
[0030] In summary, by utilizing the above-mentioned technical solution of this utility model, a sealed cavity is formed through longitudinal folding, allowing the sludge to withstand greater working pressure without the addition of chemicals, saving significant costs, greatly enhancing the sludge dewatering effect, and shortening the dewatering time. Without the addition of chemicals, the sludge's calorific value remains unaffected, creating favorable conditions for subsequent incineration. The correction airbag 107, connected to a pneumatic assembly, allows for adjustment of the position of the connecting lug 105 by controlling its expansion and contraction, thereby causing the two ends of the correction roller 102 to deflect and correct the filter cloth on the correction roller 102. Simultaneously, by controlling the expansion of the adjusting airbag 110, its unidirectional expansion allows for sliding adjustment of the relative position of the drive shaft 103 within the connecting lug 105, thus changing the relative position of the correction roller 102 and the filter cloth, thereby improving the correction efficiency.
[0031] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," "screw connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A filter cloth folding mechanism, characterized in that, The machine includes a frame (1), idler rollers (2), drive roller assembly (3), trapezoidal support frame (4), first edge suction device (5), second edge suction device (6), bottom support frame (7), first folding limit plate (8), second folding limit plate (9), and correction structure (10). The frame (1) is installed on the operating ground, the idler rollers (2) are installed at the top of one side of the frame (1), the drive roller assembly (3) is installed at the other end of the frame (1), and the trapezoidal support frame (4) is installed at an angle. Mounted on the frame (1), the second edge suction device (6) is installed on one side of the trapezoidal support (4), the bottom support (7) is horizontally installed on the frame (1), the first edge suction device (5) is installed on both sides of the bottom support (7), the first folding limiting plate (8) is horizontally inclined and installed at one end of the bottom support (7), the second folding limiting plate (9) is horizontally inclined and installed at one end of the bottom support (7), and a correction structure (10) is connected to one side of the frame (1).
2. The filter cloth folding mechanism according to claim 1, characterized in that, One end of the trapezoidal support (4) is a long side, which is installed on one side of the roller (2). The other end of the trapezoidal support (4) is a short side, which is connected to the bottom support (7). A pressure roller is installed on the short side.
3. The filter cloth folding mechanism according to claim 2, characterized in that, One side of the bottom support (7) is connected to the trapezoidal support (4), and the other side of the bottom support (7) is equipped with the drive roller group (3).
4. The filter cloth folding mechanism according to claim 3, characterized in that, The correction structure (10) includes a diagonal support frame (101), a correction roller (102), a drive shaft (103), a fixed frame (104), a through-hole support (105), a steering shaft (106), a correction airbag (107), a slider (108), a slide groove (109), and an adjusting airbag (110). The slide groove (109) is fixedly installed on the diagonal support frame (101), and the slider (108) is slidably connected in the slide groove (109). The correction airbags (107) are symmetrically connected on the slider (108).
5. A filter cloth folding mechanism according to claim 4, characterized in that, A steering shaft (106) is connected between the symmetrical correction airbags (107). A through-hole bracket (105) is rotatably connected to the steering shaft (106). A fixing frame (104) is fixedly connected to both sides of the through-hole bracket (105). An adjusting airbag (110) is connected to one side arm of the fixing frame (104). A drive shaft (103) is slidably connected inside the through-hole bracket (105).
6. A filter cloth folding mechanism according to claim 5, characterized in that, A correction roller (102) is fixedly connected to the drive shaft (103), and one side of the adjusting airbag (110) is fixedly connected to one side of the drive shaft (103).