Cloth pressing assembly of water-containing material dehydration equipment and water-containing material dehydration equipment

Abstract

The invention provides a cloth pressing assembly of water-containing material dehydration equipment and the water-containing material dehydration equipment. The cloth pressing assembly of the water-containing material dehydration equipment comprises a fixing part and a cloth pressing part, the movable part comprises a rotating shaft in running fit with the fixed part and a cloth pressing rod arranged on the rotating shaft, and the cloth pressing rod rotates along with the rotating shaft to press / loosen the filter cloth. The cloth pressing assembly can be arranged on the outer edge of the top of the filter cylinder, the movable part is driven to rotate to drive the cloth pressing rod to press the filter cloth on the filter cylinder, the situation that the cloth pressing assembly occupies the space above the filter cylinder can be avoided, mutual interference between the cloth pressing assembly and other equipment is avoided, and meanwhile, the cloth pressing assembly is prevented from loosening the filter cloth in the process that the movable part drives the cloth pressing rod to loosen the filter cloth. The end of the cloth pressing rod moves upwards in the direction away from the filter cloth instead of lifting in the vertical direction, so that the cloth pressing rod can effectively avoid the front end of the cloth pushing and spreading device in the feeding direction, and the stroke of the cloth pressing rod in the cloth pressing process is shortened.

Description

Technical Field

[0001] The invention belongs to the technical field of sludge treatment, and in particular relates to a cloth pressing component of a water-containing material dehydration device, and also relates to a water-containing material dehydration device equipped with the cloth pressing component. Background Art

[0002] As the amount of urban sewage continues to grow, the number of corresponding sewage treatment facilities has also increased, and the amount of residual sludge, a byproduct of sewage treatment, has also increased. How to properly handle and dispose of these sludges that are constantly generated and increasing in quantity has become an urgent problem to be solved in my country's environmental protection. The moisture content of residual sludge is generally above 80%. Sludge dehydration is a key step in its treatment process. However, the difficulty of deep dehydration of sludge has become a bottleneck problem restricting the harmless and resource-based treatment of sludge.

[0003] There are many methods for solid-liquid separation, including pressing, extrusion, centrifugation, etc., and the corresponding solid-liquid separation equipment is also diverse. Among them, the stacking extrusion device has the characteristics of high extrusion pressure, high extrusion limit, and long extrusion time, and has a good dehydration effect, so it is widely used.

[0004] The filter cloth of the stacking and squeezing device is generally an extra-long continuous filter cloth. During the working process, multiple layers of filter cloth need to be stacked and spread, and the sludge needs to be evenly spread between the filter cloths. When stacking filter cloths and spreading materials, a cloth pressing assembly is required to fix the filter cloth, which is mainly composed of two sets of front and rear cloth pressing assemblies. During the spreading process, the filter cloth is fixed by the front and rear sets of cloth pressing assemblies. Specifically, the proximal end of the filter cloth is first pressed by the front cloth pressing assembly, and the filter cloth is fed forward by the discharge port of the sludge spreading mechanism. When the sludge spreading mechanism reaches the farthest limit position, the rear cloth pressing assembly presses the far end of the filter cloth, and then the sludge spreading mechanism retreats. When the discharge port of the sludge spreading mechanism exits the filter cylinder, the front cloth pressing assembly is pulled out from both sides of the filter cloth and then pressed onto the upper layer of filter cloth.

[0005] The rear cloth pressing assembly of the existing stacking and squeezing device is generally arranged above the filter cylinder and driven by a lifting mechanism arranged above the filter cylinder. For example, in the Chinese utility model patent with application number CN202023099235.0, a fixing device for stacking filter cloth paving is disclosed, in which the rear pressure rod lifting frame of the rear pressure rod mechanism is driven by the rear pressure rod lifting mechanism to move up and down on the rear pressure rod fixing frame. When the sludge spreading mechanism reaches the extreme position at the farthest end, the rear pressure rod lifting mechanism is activated to push the rear pressure rod lifting frame down, and the vertical pressure rod presses the far end of the filter cloth.

[0006] However, in the above arrangement, the rear cloth pressing assembly will occupy a large space above the filter cylinder, and is likely to interfere with other equipment (such as an extrusion equipment) above the filter cylinder.

[0007] Therefore, designing a cloth pressing assembly of a water-containing material dehydration device that can reduce the space occupied by the rear cloth pressing assembly has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0008] On the one hand, the present invention provides a cloth pressing assembly of a water-containing material dehydration device, which is used to solve the problem that the existing cloth pressing assembly occupies too much space above the filter cylinder.

[0009] On the other hand, the structure of the cloth pressing assembly of the present invention is simple, and when combined with the cloth pushing head of the cloth pushing and spreading device of the present invention, the filter cloth can be pressed to the edge of the filter cylinder well; the cloth pushing head can also reduce the shear force on the filter cloth, avoiding the occurrence of tearing the filter cloth and spitting out materials when spreading the cloth. In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0010] The cloth pressing assembly of the water-containing material dehydration equipment comprises: a fixed part; a movable part, comprising a rotating shaft rotatably matched with the fixed part, and a cloth pressing rod arranged on the rotating shaft, the cloth pressing rod rotates with the rotating shaft to press / loosen the filter cloth.

[0011] Furthermore, the rotating shaft extends horizontally in a direction perpendicular to the length of the filter cloth, and the cloth pressing rod extends in a direction perpendicular to the rotating shaft; preferably, at least two cloth pressing rods are arranged at intervals along the axial direction of the rotating shaft.

[0012] Furthermore, a bearing surface is provided below the rotating shaft, and the cloth pressing rod presses the filter cloth onto the bearing surface; the end of the cloth pressing rod and the side facing the bearing surface are provided as a plane parallel to the bearing surface when the filter cloth is pressed; preferably, the cloth pressing rod comprises: a neck extending from the outer peripheral wall of the rotating shaft in a direction perpendicular to the rotating shaft; a head provided at an end of the neck away from the rotating shaft, and the side of the head facing the bearing surface protrudes relative to the neck in a direction close to the bearing surface; the side of the head facing the bearing surface is a plane extending obliquely from the direction away from the rotating shaft to the direction away from the bearing surface, and the angle between the plane and the neck is equal to the angle between the neck and the bearing surface when the pressing rod presses the filter cloth.

[0013] Furthermore, the plane of the head facing the bearing surface and the plane of the head away from the bearing surface are smoothly connected at the end of the head; preferably, the end of the head has a certain thickness in the vertical direction perpendicular to the cloth pressing rod, and a chamfer is provided between the plane of the cloth pressing rod facing the bearing surface and the end surface of the head away from the rotating axis, and a chamfer is provided between the plane of the cloth pressing rod away from the bearing surface and the end surface of the head away from the rotating axis; or, the end of the head away from the rotating axis is set to be an arc shape.

[0014] Furthermore, the movable part is configured with a first position in which the cloth pressing rod rotates in a first direction and presses the filter cloth against the bearing surface, and a second position in which the cloth pressing rod rotates in a second direction and a certain interval is formed between the cloth pressing rod and the bearing surface; the certain interval enables the front end of the cloth pushing and spreading device along the feeding direction to at least partially extend between the bearing surface and the cloth pressing rod.

[0015] Furthermore, a cloth pushing head extending obliquely downward is provided at the front end of the cloth pushing and spreading device along the feeding direction, and the first end of the cloth pushing head is connected to the spreading body, and when the cloth pushing head abuts against the filter cloth, the filter cloth is covered on the second end of the cloth pushing head opposite to the first end; a notch corresponding to the cloth pressing rod is provided in the middle of the second end of the cloth pushing head, and the notch passes through the cloth pushing head along the vertical direction perpendicular to the first end to the second end of the cloth pushing head, and the opening of the notch faces the direction away from the first end of the cloth pushing head; the end of the cloth pressing rod away from the rotating shaft passes through the notch from top to bottom, and presses the filter cloth covered on the second end of the cloth pushing head against the filter cylinder.

[0016] Preferably, the second end of the cloth pushing head is lower than the material spreading opening at the bottom of the cloth pushing and spreading device at least when the cloth pushing head abuts against the filter cloth.

[0017] Furthermore, in the direction from the first end to the second end of the cloth pushing head, at least the top of the cloth pushing head is set as a downwardly inclined plane; preferably, in the direction from the first end to the second end of the cloth pushing head, the thickness of the cloth pushing head in the direction perpendicular to the first end to the second end gradually decreases.

[0018] Furthermore, a driving rod is provided on the rotating shaft, and the extending direction is opposite to the extending direction of the cloth pressing rod, and a driving member is provided on the fixed part, which is transmission-connected to the driving rod; preferably, the driving member is a telescopic device; the two ends of the telescopic device are respectively rotatably cooperated with the fixed part and the driving rod; or, the telescopic device is fixedly installed on the fixed part, a strip hole is provided on the working end of the telescopic device, a rotating shaft is provided on the end of the driving rod, the rotating shaft is installed in the strip hole, and the length direction of the strip hole is perpendicular to the telescopic direction of the telescopic device.

[0019] Furthermore, the fixing part includes: a first support seat, which extends vertically in a direction perpendicular to the length of the filter cloth, and two mutually spaced shaft sleeves are arranged on the top of the first support seat; the two ends of the rotating shaft are respectively installed in the two shaft sleeves; a second support seat, which is vertically arranged on the side of the first support seat away from the bearing surface, and the retractable device is arranged on the second support seat.

[0020] The present invention also provides a dehydrating device for water-containing materials, comprising a cloth pushing and spreading device and a filter cylinder, wherein a cloth pressing assembly of the above-mentioned water-containing material dehydrating device is arranged at a second side of the filter cylinder away from the cloth pushing and spreading device; before the cloth pushing and spreading device feeds from a first side of the filter cylinder opposite to the second side, the end of the filter cloth is fixed on the first side; during the process of the cloth pushing and spreading device feeding to the second side of the filter cylinder, the cloth pushing and spreading device abuts against the filter cloth, lays the filter cloth in layers and sprays material onto the filter cloth; when the cloth pushing and spreading device reaches the second side, the cloth pressing assembly presses the filter cloth against the filter cylinder, and the cloth pushing and spreading device returns to its original position.

[0021] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0022] 1. The present invention provides a cloth pressing assembly of a water-containing material dehydration device, which includes a fixed part and a movable part rotatably arranged on the fixed part, and the cloth pressing assembly can be arranged at the top outer edge of the filter cylinder. The movable part is driven to rotate and drive the cloth pressing rod to press the filter cloth onto the filter cylinder, so that the cloth pressing assembly can be prevented from occupying the space above the filter cylinder and from interfering with other equipment. At the same time, when the movable part drives the cloth pressing rod to loosen the filter cloth, the end of the cloth pressing rod moves upward and away from the filter cloth. When the movable part drives the cloth pressing rod to press the filter cloth, the end of the cloth pressing rod moves downward and toward the filter cloth, instead of only lifting and lowering in the vertical direction, so that the cloth pressing rod can effectively avoid the front end in the feeding direction of the cloth pushing and spreading device, which is beneficial to shortening the stroke of the cloth pressing rod during the cloth pressing process.

[0023] 2. The present invention sets a downwardly inclined plane at least at the top of the cloth pushing head in the direction from the first end to the second end. This enables the filter cloth to slide downward along the downwardly inclined plane at the top of the cloth pushing head under the action of the cloth pressing rod during the cloth pressing process. This reduces the shear force on the filter cloth and avoids tearing the filter cloth.

[0024] 3. The present invention provides a downwardly inclined cloth pushing head at the front end of the cloth pushing and spreading device, so that when the cloth pushing and spreading device is feeding and pushing the cloth, the cloth pushing head drags the filter cloth from the cloth winding roller, and utilizes the reaction force to flatten the filter cloth under the cloth pushing and spreading device, and at the same time spreads the material on the filter cloth under the cloth pushing and spreading device. On the one hand, the laying effect of the filter cloth can be guaranteed, and on the other hand, the height difference between the second end of the cloth pushing head and the spreading port can reserve a space for laying the material between the filter cloth under the cloth pushing and spreading device and the spreading port, which can avoid the material from sticking to the cloth pushing and spreading device and improve the spreading effect of the material. Therefore, the material can be evenly spread between two adjacent layers of filter cloth, which is beneficial to improving the dehydration effect of the material.

[0025] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0027] Figure 1 It is a cross-sectional schematic diagram of a dehydration device in an embodiment of the present invention;

[0028] Figure 2 For the embodiment of the present invention Figure 1 The enlarged view of point B in the middle;

[0029] Figure 3 It is a structural schematic diagram of a dehydration device in an embodiment of the present invention;

[0030] Figure 4 It is a structural schematic diagram of the connection between the cloth pushing and spreading device and the material conveying pipe in an embodiment of the present invention;

[0031] Figure 5 It is a structural schematic diagram of a cloth pushing and spreading device in an embodiment of the present invention;

[0032] Figure 6 It is a top view of the paving body in an embodiment of the present invention;

[0033] Figure 7 For the embodiment of the present invention Figure 6 Schematic diagram of the cross section at AA in the middle;

[0034] Figure 8 For the embodiment of the present invention Figure 7 The enlarged view of point A in the middle;

[0035] Fig. 9 It is a structural schematic diagram of the cloth pushing head in the first position according to the embodiment of the present invention;

[0036] Fig.10 It is a structural schematic diagram of the cloth pushing head in the second position according to the embodiment of the present invention;

[0037] Fig.11 This is a schematic structural diagram of a paving body in an embodiment of the present invention;

[0038] Fig.12 This is a schematic diagram of the structure of a material laying pipe in an embodiment of the present invention;

[0039] Fig.13It is a structural schematic diagram of the first guide assembly in an embodiment of the present invention;

[0040] Fig.14 is a cross-sectional schematic diagram of a first guide assembly in an embodiment of the present invention;

[0041] Fig.15 It is a structural schematic diagram of the cloth pushing and spreading device in the embodiment of the present invention when it moves to the second side of the filter cylinder;

[0042] Fig.16 It is a structural schematic diagram of the movable part when it rotates to the second position in the embodiment of the present invention;

[0043] Fig.17 It is a structural schematic diagram of the movable part when it rotates to the first position in the embodiment of the present invention;

[0044] Fig.18 Schematic diagram of the structure of the second cloth pressing assembly in an embodiment of the present invention.

[0045] Description of the main components in the figure:

[0046] 1. cloth-pushing and spreading device; 11. spreading body; 111. shell; 112. spreading pipe; 1121. spreading port; 1122. input section; 1123. diameter-changing section; 1124. output section; 113. cloth-pushing head; 1133. reinforcing plate; 1134. solid cylinder; 1135. notch; 12. base; 121. second driving part; 13. driving device; 14. front driving device; 15. feeding pipe; 16. mounting joint; 17. first guide assembly; 171. first track; 1711. groove; 1712 , limiting part; 172, roller; 18, second guide assembly; 181, second track; 182, slider; 183, first driving part; 2, filter cylinder; 3, discharge collecting bucket; 4, frame; 41, cloth guide roller; 5, first cloth pressing assembly; 6, second cloth pressing assembly; 61, fixed part; 611, first supporting seat; 612, second supporting seat; 62, movable part; 621, rotating shaft; 622, cloth pressing rod; 6221, neck; 6222, head; 623, driving rod; 7, cloth winding roller; 71, filter cloth; 8, extrusion equipment.

[0047] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0048] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0049] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0051] like Figures 1 to 18 As shown, in an embodiment of the present invention, a dehydration device for water-containing materials is introduced, including a cloth pushing and spreading device 1 and a filter cylinder 2. The cloth pushing and spreading device 1 spreads a filter cloth 71 in the filter cylinder 2 and sprays the material to be processed onto the filter cloth 71.

[0052] During the spreading process, the filter cloth 71 is fixed by two sets of cloth pressing assemblies.

[0053] In some specific embodiments, the cloth pushing and spreading device 1 is configured to move the folded filter cloth 71 back and forth between a first side edge and a second side edge opposite to the filter cylinder 2 , and spray the material to be processed onto the filter cloth 71 .

[0054] In the moving direction of the filter cloth 71 , a first cloth pressing assembly 5 and a second cloth pressing assembly 6 are respectively provided on the first side edge and the second side edge opposite to the top of the filter cylinder 2 .

[0055] The filter cloth 71 is rolled up on the cloth winding roller 7 . The cloth winding roller 7 containing the filter cloth 71 and the cloth pushing and spreading device 1 are located on the same side of the filter cylinder 2 . The spreading opening 1121 of the cloth pushing and spreading device 1 is higher than the upper edge of the filter cylinder 2 .

[0056] One or more cloth guide rollers 41 are arranged between the cloth rolling roller 7 and the filter cylinder. After the filter cloth 71 passes around the cloth guide roller 41, the first cloth pressing assembly 5 presses the filter cloth onto the filter cylinder.

[0057] During the process of laying the filter cloth 71 from the first side to the second side of the filter cylinder 2, when the cloth pushing and spreading device 1 is outside the filter cylinder 2, the first cloth pressing assembly 5 presses the filter cloth 71 on the first side down on the filter cylinder 2; the cloth pushing and spreading device 1 moves toward the second side of the filter cylinder 2 against the filter cloth 71, and at the same time, spreads the material evenly on the filter cloth 71, and the other end of the filter cloth 71 is dragged out from the cloth winding roller 7; when reaching the second side of the filter cylinder 2, the second cloth pressing assembly 6 presses the filter cloth 71 on the second side down on the filter cylinder 2, and the cloth pushing and spreading device 1 returns to its original position.

[0058] During the retreat of the cloth pushing and spreading device 1, and / or after the cloth pushing and spreading device 1 exits the filter cylinder 2, the first cloth pressing assembly 5 is pulled out; after the cloth pushing and spreading device 1 exits the filter cylinder 2, the first cloth pressing assembly 5 is activated again to press the filter cloth 71 on the first side down on the filter cylinder 2.

[0059] By repeating the movement, several layers of the material to be processed wrapped by the filter cloth 71 are laid up and down in the filter cylinder 2 .

[0060] It also includes an extrusion device 8, which is located above the filter cylinder 2 and is used to extrude the material.

[0061] In this embodiment, the material to be processed is a mixture of solid and liquid, for example, a water-containing material, and there is no limitation on the water content.

[0062] In this embodiment, the water-containing material dehydration equipment is preferably used for solid-liquid separation of sludge with high water content.

[0063] In this embodiment, in order to ensure the wrapping of the material, the width of the filter cloth is set to be greater than the width of the internal space of the filter cylinder, and the width of the spreading opening of the cloth-pushing and spreading device is less than or equal to the width of the internal space of the filter cylinder. After the cloth-pushing and spreading device spreads the material on the filter cloth, the movable bottom plate of the filter cylinder moves downward, and the filter cloth carrying the material falls into the filter cylinder. The side edges of the filter cloth are bent upward under the obstruction of the filter cylinder, and the material is wrapped from both sides of the material to prevent the material from flowing out from both sides of the filter cloth.

[0064] In some preferred embodiments, there is a certain interval between the cloth pressing position of the first cloth pressing assembly and the internal space of the filter cylinder. Therefore, when the movable bottom plate of the filter cylinder moves downward, part of the filter cloth exceeding the internal space of the filter cylinder is bent upward under the obstruction of the first side of the filter cylinder, so that the side of the material close to the cloth pushing and spreading device is also wrapped by the filter cloth.

[0065] Embodiment 1

[0066] The cloth pressing assembly of the existing water-containing material dehydration equipment, specifically, the second cloth pressing assembly 6, is usually arranged above the filter cylinder 2, and the cloth pressing rod 622 is driven by the lifting mechanism, the lifting mechanism drives the cloth pressing rod 622 to descend, and presses the filter cloth 71, and the lifting mechanism drives the cloth pressing rod 622 to rise, and loosens the filter cloth 71. The cloth pressing assembly occupies a large space above the filter cylinder 2, and is easy to interfere with other equipment (such as the extrusion equipment 8) above the filter cylinder 2.

[0067] like Figures 15 to 18 As shown, in an embodiment of the present invention, a cloth pressing assembly of a water-containing material dehydration device is introduced to solve the above-mentioned problem and reduce the space occupied by the cloth pressing assembly.

[0068] In this embodiment, the cloth pressing assembly includes a fixed portion 61 and a movable portion 62 , and the movable portion 62 is rotatably mounted on the fixed portion 61 .

[0069] Specifically, the movable portion 62 includes a rotating shaft 621 rotatably matched with the fixed portion 61 , and a cloth pressing rod 622 disposed on the rotating shaft 621 . The cloth pressing rod 622 rotates with the rotating shaft 621 to press / loosen the filter cloth 71 .

[0070] Through the above-mentioned arrangement, the cloth pressing assembly can be arranged at the top outer edge of the filter cylinder 2, and the cloth pressing rod 622 can be driven by the movable part 62 to rotate to press the filter cloth 71 onto the filter cylinder 2, so that the cloth pressing assembly can be prevented from occupying the space above the filter cylinder 2 and from interfering with other equipment. At the same time, when the movable part drives the cloth pressing rod 622 to loosen the filter cloth 71, the end of the cloth pressing rod 622 moves upward and away from the filter cloth 71. When the movable part drives the cloth pressing rod 622 to press the filter cloth 71, the end of the cloth pressing rod 622 moves downward and toward the filter cloth 71, instead of only lifting and lowering in the vertical direction, so that the cloth pressing rod 622 can effectively avoid the front end in the feeding direction of the cloth pushing and spreading device 1, which is beneficial to shortening the stroke of the cloth pressing rod 622 during the cloth pressing process.

[0071] In this embodiment, the rotating shaft 621 extends horizontally in a direction perpendicular to the length of the filter cloth 71 , and the cloth pressing rod 622 extends in a direction perpendicular to the rotating shaft 621 . There are at least two cloth pressing rods 622 arranged at intervals along the axial direction of the rotating shaft 621 .

[0072] In this embodiment, the cloth pressing rods 622 are parallel to each other and have the same length, and one end of each cloth pressing rod 622 away from the rotating shaft 621 simultaneously presses the filter cloth 71. The cloth pressing rods 622 press the filter cloth 71 at the left and right sides of the filter cloth 71 close to the laying direction, which can ensure the fixing effect of the filter cloth 71 and help prevent the material on the filter cloth 71 from flowing out from the two sides of the filter cloth 71.

[0073] In some possible embodiments, at least two cloth pressing rods 622 are provided, and the two cloth pressing rods 622 respectively correspond to the left and right sides of the filter cloth 71 close to the laying direction.

[0074] In some other possible embodiments, the number of the cloth pressing rods 622 may be greater than two, wherein two cloth pressing rods 622 respectively correspond to the left and right sides of the filter cloth 71 close to the laying direction, and the remaining cloth pressing rods 622 are arranged between the above two cloth pressing rods 622.

[0075] In this embodiment, a bearing surface is provided below the rotating shaft 621, and the cloth pressing rod 622 presses the filter cloth 71 onto the bearing surface; the end of the cloth pressing rod 622, the side facing the bearing surface, is provided as a plane parallel to the bearing surface when pressing the filter cloth 71.

[0076] In some specific embodiments, the bearing surface may be the top plane of the filter cylinder 2, or may be a plane separately arranged near the filter cylinder 2, as long as it can cooperate with the cloth pressing rod 622 to fix the end of the filter cloth 71. In this embodiment, the bearing surface is taken as the top plane of the filter cylinder 2 as an example for description.

[0077] In some possible embodiments, the rotating shaft 621 can also be set below the bearing surface, or flush with the bearing surface. It only needs to be bent on the cloth pressing rod 622 so that the end of the cloth pressing rod 622 extends above the bearing surface. When the rotating shaft 621 rotates, the filter cloth 71 can be pressed against the bearing surface by the end of the cloth pressing rod 622.

[0078] In the above scheme, by arranging the rotating shaft 621 above the bearing surface, it is helpful to reduce the size of the cloth pressing rod 622 and further reduce the space occupied by the cloth pressing assembly. By arranging the end of the cloth pressing rod 622, the side facing the bearing surface, as a plane parallel to the bearing surface when pressing the filter cloth 71, when the cloth pressing rod 622 presses the filter cloth 71, a plane can abut against the filter cloth 71, and the filter cloth 71 can be clamped between the bearing surface and the plane of the end of the cloth pressing rod 622, which can improve the fixing effect of the filter cloth 71.

[0079] like Fig.18As shown, in some specific embodiments, the cloth pressing rod 622 includes a neck 6221 and a head 6222, the neck 6221 extends from the outer peripheral wall of the rotating shaft 621 in a direction perpendicular to the rotating shaft 621, and the head 6222 is arranged at an end of the neck 6221 away from the rotating shaft 621, and the side of the head 6222 facing the bearing surface protrudes in a direction close to the bearing surface relative to the neck 6221, and the side of the head 6222 facing the bearing surface has a plane extending obliquely in a direction away from the rotating shaft 621 toward a direction away from the bearing surface, and the angle between the plane and the neck 6221 is equal to the angle between the neck 6221 and the bearing surface when the pressing rod presses the filter cloth 71.

[0080] Specifically, Figures 16 to 18 As shown, the cloth pressing rod 622 extends as a whole along the radial direction of the rotating shaft 621 , the first end of the neck 6221 is connected to the rotating shaft 621 , and the first end of the head 6222 is connected to the second end of the neck 6221 .

[0081] The neck 6221 can be configured to have a constant cross-sectional area, or a gradually increasing cross-sectional area, or a gradually decreasing cross-sectional area in a direction away from the rotation axis 621. The cross-sectional shape of the neck 6221 can be circular, quasi-circular, or prism-shaped. In some preferred embodiments, the cross-sectional area of ​​the neck 6221 is configured to be rectangular, and the cross-sectional area of ​​the neck 6221 is the same everywhere in a direction away from the rotation axis 621.

[0082] The first end of the head 6222 protrudes toward the bearing surface relative to the second end of the neck 6221 , and the side of the head 6222 toward the bearing surface is configured as a plane inclined away from the bearing surface in a direction away from the rotation axis 621 .

[0083] Specifically, the cross-sectional area of ​​the head 6222 gradually decreases in the direction away from the rotation axis 621, the cross-sectional area of ​​the first end of the head 6222 is larger than the cross-sectional area of ​​the second end of the head 6222, and the cross-sectional area of ​​the first end of the head 6222 is larger than the cross-sectional area of ​​the neck 6221. The left side surface, right side surface and side surface away from the bearing surface of the neck 6221 and the head 6222 are coplanar, so that the thickness of the head 6222 in the vertical direction perpendicular to the neck 6221 of the cloth pressing rod 622 to the head 6222 gradually decreases.

[0084] In this embodiment, the height of the rotating shaft 621 is higher than the height of the bearing surface. When the cloth pressing rod 622 presses the filter cloth 71, the cloth pressing rod 622 is in a state of being inclined downward from the rotating shaft 621. By setting the side of the head 6222 facing the bearing surface as a plane extending in a direction away from the rotating shaft 621 and away from the bearing surface, the angle between the plane and the neck 6221 is equal to the angle between the neck 6221 and the bearing surface when the pressing rod presses the filter cloth 71. When the cloth pressing rod 622 presses the filter cloth 71, the head 6222 can be rotated to a horizontal position toward the side of the bearing surface, thereby clamping the filter cloth 71 between the two planes, thereby improving the fixing effect of the filter cloth 71.

[0085] Preferably, in this embodiment, the cross-sectional area of ​​the second end of the head 6222 is smaller than the cross-sectional area of ​​the neck 6221 .

[0086] In this embodiment, the plane of the head 6222 facing the bearing surface and the plane of the head 6222 away from the bearing surface are smoothly connected at the end of the head 6222 .

[0087] Specifically, the end of the head 6222 has a certain thickness in the vertical direction perpendicular to the cloth pressing rod 622. This certain thickness can avoid forming a sharp angle at the second end of the head 6222. Specifically, it can avoid forming an angle less than 90° at the second end of the head 6222, thereby avoiding damage to the filter cloth 71 during the cloth pressing process.

[0088] In some preferred embodiments, a chamfer is provided between the plane of the cloth pressing rod 622 facing the bearing surface and the end face of the head 6222 away from the rotating shaft 621, and a chamfer is provided between the plane of the cloth pressing rod 622 away from the bearing surface and the end face of the head 6222 away from the rotating shaft 621; or, the end of the head 6222 away from the rotating shaft 621 is set to be an arc shape.

[0089] Through the above arrangement, the filter cloth 71 can be better protected during the cloth pressing process, and the filter cloth 71 can be prevented from being punctured by the end of the cloth pressing rod 622 during the cloth pressing process.

[0090] In this embodiment, the movable part 62 of the cloth pressing assembly is configured with a first position in which the cloth pressing rod 622 rotates in a first direction to press the filter cloth 71 against the bearing surface, and a second position in which a certain interval is formed between the cloth pressing rod 622 and the bearing surface when it rotates in a second direction. The certain interval enables the front end of the cloth pushing and spreading device 1 along the feeding direction to at least partially extend between the bearing surface and the cloth pressing rod 622.

[0091] Specifically, in the present embodiment, the water-containing material dehydration equipment includes a cloth pushing and spreading device 1 and a filter cylinder 2. The cloth pressing component of the water-containing material dehydration equipment described in the present embodiment is arranged at the second side of the filter cylinder 2 away from the cloth pushing and spreading device 1, which is a second cloth pressing component 6. The first cloth pressing component 5 is also arranged at the first side of the filter cylinder 2 away from the cloth pushing and spreading device 1.

[0092] Before the cloth pushing and spreading device 1 feeds from the first side opposite to the second side of the filter cylinder 2, the end of the filter cloth 71 is fixed to the first side by the first cloth pressing assembly 5; in the process of the cloth pushing and spreading device 1 feeding to the second side of the filter cylinder 2, it abuts against the filter cloth 71, advances against the filter cloth 71, and drags the filter cloth 71 out from the cloth winding roller 7. At the same time, the filter cloth 71 is stretched flat, and the cloth pushing and spreading device 1 lays the filter cloths 71 in layers and sprays material on the filter cloths 71; when the cloth pushing and spreading device 1 reaches the second side, the second cloth pressing assembly 6 in this embodiment presses the filter cloth 71 against the second side of the filter cylinder 2, and the cloth pushing and spreading device 1 returns to its original position.

[0093] In the above scheme, the cloth pushing and spreading device 1 pushes the filter cloth 71 to move toward the second side of the filter cylinder 2, and at the same time, the process of evenly spreading the material on the filter cloth 71 is defined as the cloth pushing and spreading process.

[0094] In the present embodiment, during the cloth pushing and spreading process, the filter cloth 71 is covered on the front end of the cloth pushing and spreading device 1 along the feeding direction. During the process in which the front end of the cloth pushing and spreading device 1 along the feeding direction pushes the filter cloth 71 and moves toward the second side of the filter cylinder 2, the movable part 62 is in the second position, and a certain interval is formed between the cloth pressing rod 622 and the top of the filter cylinder 2.

[0095] When the front end of the cloth pushing and spreading device 1 along the feeding direction pushes the filter cloth 71 and moves to the second side of the filter cylinder 2, the front end of the cloth pushing and spreading device 1 along the feeding direction at least partially extends below the cloth pressing rod 622, the movable part 62 rotates to the first position, and the cloth pressing rod 622 presses the filter cloth 71 against the second side of the filter cylinder 2.

[0096] Specifically, when the front end of the cloth pushing and spreading device 1 along the feeding direction moves to the second side of the filter cylinder 2, the front end of the cloth pushing and spreading device 1 along the feeding direction at least partially overlaps with the moving path of the cloth pressing rod 622, and when the movable part 62 rotates to the first position, the cloth pressing rod 622 presses the filter cloth 71 covered on the front end of the cloth pushing and spreading device 1 along the feeding direction onto the second side of the filter cylinder 2.

[0097] In this embodiment, a notch 1135 for the cloth pressing rod 622 to pass through is disposed at the front end of the cloth pushing and spreading device 1 . The cloth pressing rod 622 passes through the notch 1135 to press the filter cloth 71 onto the filter cylinder 2 .

[0098] In some preferred embodiments, the cloth pushing and spreading device 1 is provided with a cloth pushing head 113 extending obliquely downward at the front end along the feeding direction, and the first end of the cloth pushing head 113 is connected to the spreading body 11, and when the cloth pushing head 113 abuts against the filter cloth 71, the filter cloth 71 is covered on the second end of the cloth pushing head 113 opposite to the first end. A notch 1135 corresponding to the cloth pressing rod 622 is provided in the middle of the second end of the cloth pushing head 113, and the notch 1135 passes through the cloth pushing head 113 along the vertical direction perpendicular to the first end to the second end of the cloth pushing head 113, and the opening of the notch 1135 faces the direction away from the first end of the cloth pushing head 113; the end of the cloth pressing rod 622 away from the rotating shaft 621 passes through the notch 1135 from top to bottom, and the filter cloth 71 covered on the second end of the cloth pushing head 113 is pressed against the filter cylinder 2.

[0099] In this embodiment, along the horizontal direction perpendicular to the first end to the second end of the cloth pushing head 113, the width of the cloth pressing rod 622 is smaller than the width of the notch 1135. The cloth pressing rod 622 passes through the notch 1135 from top to bottom, pressing the filter cloth 71 covered on the second end of the cloth pushing head 113 onto the filter cylinder 2.

[0100] Preferably, in the present embodiment, in the direction from the first end to the second end of the cloth pushing head 113, at least the top of the cloth pushing head 113 is set as a downwardly inclined plane. Through the above arrangement, during the process of the cloth pressing rod 622 pressing the cloth, the inclined surface of the top of the cloth pushing head 113 can be used to unload the force, so that the filter cloth 71 slides downward along the downwardly inclined plane of the top of the cloth pushing head 113 under the force of the cloth pressing rod 622, which can reduce the shear force on the filter cloth 71 and avoid tearing the filter cloth 71.

[0101] Preferably, in this embodiment, the cloth pushing head 113 is tilted downward from the first end to the second end of the cloth pushing head 113, and the thickness of the cloth pushing head 113 in the direction perpendicular to the first end to the second end gradually decreases. Thus, the end of the cloth pressing rod 622 can smoothly pass through the notch 1135 to press the filter cloth 71 onto the filter cylinder 2.

[0102] Preferably, in this embodiment, the second end of the cloth pushing head 113 is lower than the material spreading opening 1121 at the bottom of the cloth pushing and spreading device 1 at least when the cloth pushing head 113 abuts against the filter cloth 71 .

[0103] In this embodiment, the cloth pressing assembly further includes a driving member for driving the movable part 62 to rotate, and the driving member is in transmission connection with the rotating shaft 621, and can drive the rotating shaft 621 to rotate in any manner. For example, the driving member can be a servo motor that drives the rotating shaft 621 through gears.

[0104] In some specific embodiments, the rotating shaft 621 is provided with a driving rod 623 whose extension direction is opposite to that of the cloth pressing rod 622, and the fixing portion 61 is provided with a driving member transmission-connected to the driving rod 623, and the driving member is a retractable device.

[0105] In some possible embodiments, two ends of the retractable device are rotationally matched with the ends of the fixing portion 61 and the driving rod 623 respectively.

[0106] In some possible embodiments, the retractable device is fixedly mounted on the fixed portion 61, a bar hole is provided on the working end of the retractable device, a rotating shaft is provided at the end of the driving rod 623, and the rotating shaft is installed in the bar hole. The length direction of the bar hole is perpendicular to the retractable direction of the retractable device. During the retracting and extending process of the retractable device, the rotating shaft can slide along the bar hole to rotate the movable portion 62.

[0107] Preferably, in this embodiment, the movable portion 62 is provided as an integral piece, and the cloth pressing rod 622, the rotating shaft 621, and the driving rod 623 are integrally formed.

[0108] In this embodiment, the retractable device may be a pneumatic cylinder, an oil cylinder, a linear motor, etc.

[0109] like Fig.18 As shown, in this embodiment, the fixing portion 61 includes a first support seat 611 and a second support seat 612. The first support seat 611 extends vertically in a direction perpendicular to the length of the filter cloth 71, and two mutually spaced shaft sleeves are arranged on the top of the first support seat 611; the two ends of the rotating shaft 621 are respectively installed in the two shaft sleeves. The second support seat 612 is vertically arranged on the side of the first support seat 611 away from the bearing surface, and the retractable device is arranged on the second support seat 612.

[0110] In some possible embodiments, the fixing portion 61 is disposed on the outer wall of the filter cylinder 2 away from the cloth pushing and spreading device 1, the first support seat 611 extends in the vertical direction, and two mutually spaced shaft sleeves are disposed on the top of the first support seat 611, and the shaft sleeves are higher than the upper edge of the filter cylinder 2. The second support seat 612 extends horizontally from the bottom of the first support seat 611 in a direction away from the filter cylinder 2, and a mounting opening is disposed on the second support seat 612, and the retractable device is fixedly mounted in the mounting opening, and the working end of the retractable device is disposed upward and is in transmission connection with the driving rod 623.

[0111] Embodiment 2

[0112] On the basis of the first embodiment, the present invention further introduces a specific structure of a cloth spreading device 1 for dehydrating water-containing materials, such as Figures 1 to 14 shown.

[0113] like Figure 8 As shown, in this embodiment, the cloth pushing and spreading device 1 includes a spreading body 11, and a spreading opening 1121 is provided at the bottom of the spreading body 11. A cloth pushing head 113 extending downwardly and obliquely is provided at the front end of the spreading body 11, and a first end of the cloth pushing head 113 is connected to the spreading body 11, and a second end of the cloth pushing head 113 opposite to the first end of the cloth pushing head 113 is lower than the spreading opening 1121 at least when the cloth pushing head 113 abuts against the filter cloth 71.

[0114] like Figure 1 and Figure 2 As shown, the cloth pushing head 113 at the front end of the material spreading body 11 presses against the filter cloth 71 so that the filter cloth 71 is pulled out from the cloth winding roller 7, and the filter cloth is wrapped around the front end of the material spreading body 11, and the filter cloth slides along the front end of the material spreading body 11 during the process of the material spreading body 11 being fed forward.

[0115] When the material spreading body 11 is in the process of feeding and pushing the cloth, the filter cloth 71 is dragged out from the cloth winding roller 7 by the cloth pushing head 113, and the filter cloth 71 under the material spreading body 11 is stretched flat by the reaction force, and the material is spread on the filter cloth 71 under the material spreading body 11 at the same time. On the one hand, the laying effect of the filter cloth 71 can be guaranteed, and on the other hand, the height difference between the second end of the cloth pushing head 113 and the material spreading opening 1121 can reserve space for laying the material between the filter cloth 71 under the material spreading body 11 and the material spreading opening 1121, which can avoid the material from sticking to the material spreading body 11 and improve the spreading effect of the sludge. Therefore, the material can be evenly spread between two adjacent layers of filter cloth 71, which is beneficial to improving the dehydration effect of the material.

[0116] Preferably, in this embodiment, at least when the cloth pushing head 113 abuts against the filter cloth 71, the height difference between the second end of the cloth pushing head 113 and the material spreading opening 1121 is greater than the thickness of the material spread on the filter cloth, thereby further preventing the material from sticking to the material spreading body 11.

[0117] In some specific embodiments, the cloth pushing head 113 extends obliquely downward from the front end of the material spreading body 11, and the thickness of the cloth pushing head 113 in the direction perpendicular to the first end to the second end gradually decreases from the first end to the second end. Specifically, the thickness of the cloth pushing head 113 gradually decreases in the direction away from the material spreading body 11. Through the above arrangement, the filter cloth 71 slides smoothly along the cloth pushing head 113 during the process of being dragged out from the cloth winding roller 7, reducing the resistance of the cloth pushing head 113 to the filter cloth 71. At the same time, it can avoid the filter cloth 71 from having too much excess at the second side of the filter cylinder 2, and can make the filter cloth 71 above the material flat after the material spreading body 11 is retracted.

[0118] Preferably, in this embodiment, the second end of the cloth pushing head 113 is configured to be an arc shape.

[0119] Preferably, in a direction perpendicular to the first end to the second end of the cloth pushing head 113 , the maximum thickness of the arc shape at the second end of the cloth pushing head 113 is smaller than the thickness of the first end of the cloth pushing head 113 .

[0120] In some specific embodiments, the second end of the cloth pushing head 113 is a solid cylinder 1134 whose diameter is smaller than the thickness of the front end of the material spreading body 11. The solid cylinder 1134 is connected to the material spreading body 11 through a support plate extending downward from the front end of the material spreading body 11. The end of the support plate away from the solid cylinder 1134 is the first end of the cloth pushing head 113.

[0121] Specifically, the solid column 1134 is arranged in front of the material paving body 11, is spaced apart from the material paving body 11, and is connected to the front end of the material paving body 11 through the support plate. In some possible embodiments, two support plates extend obliquely from the upper and lower sides of the solid column 1134 along the tangent direction of the solid body to the upper and lower edges of the front end of the material paving body 11; the ends of the support plates are smoothly transitionally connected to the outer peripheral wall of the solid column 1134.

[0122] Preferably, in this embodiment, the two support plates are respectively tangent to the upper and lower sides of the solid cylinder 1134. Preferably, in this embodiment, a reinforcing plate 1133 is provided between the two support plates to reinforce the structure of the cloth pushing head 113.

[0123] In some possible embodiments, the cloth pushing head 113 is connected as a whole with the material spreading body 11. Specifically, one end of the two support plates of the cloth pushing head 113 away from the solid cylinder 1134 is respectively connected to the upper and lower edges of the front end of the material spreading body 11, and the second end of the cloth pushing head 113 is lower than the material spreading opening 1121.

[0124] In this embodiment, in order to prevent the cloth-pushing head 113 from scraping the material under the material-paving body 11, the material-paving body 11 can be controlled to rise when the material-paving body 11 retreats, or the cloth-pushing and material-paving device can be controlled to rise as a whole, or the movable bottom plate of the filter cylinder can be controlled to move downward, so that the cloth-pushing head 113 can avoid the material laid on the filter cloth. In some preferred embodiments, the movable bottom plate is initially moved to a position slightly lower than the top of the filter cylinder 2, and the interval between the movable bottom plate and the top of the filter cylinder 2 is greater than or equal to the thickness of the material laid on the filter cloth 71; when the front end of the cloth-pushing and material-paving device 1 moves to the outside of the first side along the feeding direction, the movable bottom plate of the filter cylinder 2 moves downward by a stroke that matches the thickness of the material laid on the filter cloth 71 and the sum of the thickness of the filter cloth 71.

[0125] Specifically, in this embodiment, the filter cylinder includes a cylinder body and a movable bottom plate located inside the cylinder body. The cylinder body is a hollow cubic structure with water outlet holes on the sides. The top of the cylinder body is open, the movable bottom plate matches the cross-section of the cylinder body cavity and can move up and down along the cylinder body, and the bottom of the cylinder body is open.

[0126] like Fig. 9 and Fig.10 As shown, in some other possible embodiments, the cloth pushing head 113 is rotatably matched with the material laying body 11. Thus, when the material laying body 11 is fed forward, the cloth pushing head 113 can be controlled to rotate downward, so that the second end of the cloth pushing head 113 is lower than the material laying opening 1121, and a height difference greater than the thickness of the material laid on the filter cloth is formed between the cloth pushing head 113 and the material laying opening 1121. When the material laying body 11 is retracted, the cloth pushing head 113 can be controlled to rotate upward, so that the second end of the cloth pushing head 113 is higher than the material on the filter cloth 71, which can prevent the cloth pushing head 113 from scraping the material under the material laying body 11 and preventing the material from sticking to the cloth pushing head 113, thereby improving the material paving effect. At the same time, it is beneficial to increase the retraction speed of the material laying body 11 and the material laying rate.

[0127] Preferably, in this embodiment, the cloth pushing head 113 includes a first position for rotating upward to an upper limit, and a second position for rotating downward to a lower limit. When the cloth pushing head 113 is in the first position and the second position, the height difference of the second end of the cloth pushing head 113 is greater than the thickness of the material laid on the filter cloth.

[0128] Preferably, an elastic member is provided between the cloth pushing head 113 and the material spreading body 11, and the elastic member is used to drive the cloth pushing head 113 to rotate toward the first position. During the forward feeding of the material spreading body 11, the reaction force applied by the filter cloth 71 to the cloth pushing head 113 is greater than the elastic force of the elastic member, and the cloth pushing head 113 is driven by the reaction force of the filter cloth 71 to rotate toward the second position. When the cloth pushing head 113 rotates to the first position, the height of the axis of the solid cylinder 1134 is lower than the height of the rotation center of the cloth pushing head 113, thereby ensuring that the cloth pushing head 113 can smoothly rotate to the second position under the reaction force of the filter cloth 71.

[0129] like Fig. 9 and Fig.10As shown, in some specific embodiments, the rotation of the cloth-pushing head 113 can be limited by the front end face of the material-laying body 11. Specifically, the rotating shaft can be set between the middle of the front end face of the material-laying body 11 and the cloth-pushing head 113, and a gap for the cloth-pushing head 113 to rotate is set between the cloth-pushing head 113 and the material-laying body 11. When the cloth-pushing head 113 rotates to the first position, the upper end of the side of the cloth-pushing head 113 close to the material-laying body 11 abuts against the front end of the material-laying body 11, and when the cloth-pushing head 113 rotates to the second position, the lower end of the side of the cloth-pushing head 113 close to the material-laying body 11 abuts against the front end of the material-laying body 11. Preferably, in this embodiment, the upper edge of the front end of the material-laying body 11 and / or the upper edge of the first end of the cloth-pushing head are provided with arc-shaped chamfers to avoid scratching the filter cloth.

[0130] In this embodiment, the elastic member used to drive the cloth pushing head 113 to rotate toward the first position may be a torsion spring.

[0131] Preferably, the top of the working end of the first cloth pressing assembly 5 is substantially flush with the bottom of the second end of the cloth pushing head 113, so that the filter cloth 71 below the material spreading body 11 can be substantially horizontal. Specifically, when the working end of the first cloth pressing assembly 5 presses the filter cloth 71 on the first side of the filter cylinder 2 onto the filter cylinder 2, the top of the working end of the first cloth pressing assembly 5 is slightly lower than the bottom of the second end of the cloth pushing head 113, so that the cloth pushing head 113 can pass smoothly.

[0132] Preferably, the height difference between the bottom of the second end of the cloth pushing head 113 and the top of the working end of the first cloth pressing assembly 5 is greater than or equal to the thickness of the filter cloth 71 .

[0133] Preferably, the material spreading opening 1121 is arranged at the bottom of the material spreading body 11 and close to the front end of the material spreading body 11 , that is, the material spreading opening 1121 is arranged close to the cloth pushing head 113 .

[0134] Preferably, the material paving body 11 sprays material onto the filter cloth 71 during the feeding process, and stops spraying material onto the filter cloth 71 during the retreat process. Preferably, the retreating movement speed of the material paving body 11 is greater than or equal to the feeding movement speed of the material paving body 11. Preferably, in this embodiment, the material paving body 11 extends in the horizontal direction.

[0135] A notch is provided in the middle of the second end of the cloth pushing head 113, which is adapted to the shape of the working end of the second cloth pressing assembly arranged on the side of the filter cylinder 2 away from the cloth pushing and spreading device, for the working end of the second cloth pressing assembly to pass through and press the filter cloth 71 covered on the second end of the cloth pushing head 113 onto the filter cylinder 2.

[0136] Embodiment 3

[0137] On the basis of the first and second embodiments, Figures 1 to 14 As shown, in an embodiment of the present invention, an installation structure of a cloth-pushing and spreading device 1 in a water-containing material dehydration device (which can be a sludge dehydration device) is further introduced. The water-containing material dehydration device includes a frame 4, and a cloth-pushing and spreading device 1 installed on the frame 4, and the cloth-pushing and spreading device 1 includes a base 12 and a spreading body 11 installed on the base 12. The base 12 is installed on the frame 4 through a first guide component 17, and the spreading body 11 is installed on the base 12 through a second guide component 18. One end of the driving device 13 is connected to the base 12, and the other end is connected to the spreading body 11.

[0138] Preferably, the extension direction of the first guide component 17 is parallel to the extension direction of the second guide component 18. When the base 12 moves along the first guide component 17, the front end of the cloth pushing body of the cloth pushing and spreading device 1 and the first side of the filter cylinder 2 are close to each other and always kept aligned.

[0139] In this embodiment, the first guide assembly 17 and the second guide assembly 18 can be a sliding guide rail structure or a rolling guide rail structure. The second guide assembly 18 is a sliding guide rail structure, which is arranged on one side or both sides of the feeding direction of the material paving body 11, and includes a second track 181 and a slider 182 sleeved on the second track 181.

[0140] In this embodiment, the second track 181 is arranged on one side or both sides of the feeding direction of the material paving body 11, and the slider 182 is arranged on the base 12 corresponding to the second track 181; or, the second track 181 is on the base 12 on one side or both sides of the feeding direction of the material paving body 11, and the slider 182 is arranged on the material paving body 11 corresponding to the second track 181; or, the second track 181 is arranged on one side of the feeding direction of the material paving body 11, and the slider 182 is arranged on the other side of the feeding direction of the material paving body 11, and the base 12 is provided with a slider 182 and a second track 181 respectively corresponding to the second track 181 and the slider 182 on the material paving body 11. Preferably, in this embodiment, the sliding guide rail structure is provided with two groups, which are respectively arranged between the left and right sides of the material paving body 11 and the top of the base 12.

[0141] Specifically, in this embodiment, the sliding guide rail structure includes a second rail 181 and a slider 182 installed on the second rail 181 and sliding back and forth along the second rail 181. The second rail 181 is arranged on the base 12, and the slider 182 is arranged on the material laying body 11.

[0142] Specifically, Figure 4 and Figure 5As shown, in this embodiment, the extension length of the base 12 along the feeding direction perpendicular to the material paving body 11 is greater than the extension length of the material paving body 11 along the feeding direction perpendicular to the material paving body 11, the first track 171 is installed on the top of the base 12, and the two first tracks 171 are respectively arranged on both sides of the material paving body 11. The two sides of the material paving body 11 are respectively provided with sliders 182 extending outwards, and the sliders 182 are respectively sleeved on the corresponding first tracks 171. Through the above arrangement, the material paving body 11 and the base 12 can always maintain a high degree of parallelism, and avoid the situation where the front end of the material paving body 11 tilts downward during the forward feeding process.

[0143] In this embodiment, the feeding direction of the material paving body 11 is the extending direction of the second guide assembly 18 .

[0144] Preferably, in this embodiment, the material spreading body 11 extends in the horizontal direction, the top surface of the base 12 is set as a horizontal plane, and the material spreading body 11 and the top surface of the base 12 are close to each other. Thus, the compactness of the structure of the cloth pushing material spreading device 1 can be improved. The sliding guide structure is arranged between the left and right sides of the material spreading body 11 and the base 12, which can facilitate the fitting of the material spreading body 11 and the base 12.

[0145] In this embodiment, the fixed end of the driving device 13 is disposed on the base 12 , and the movable end is connected to the slider 182 .

[0146] In some specific embodiments, the shell 111 of the paving body 11 is configured as a rectangular parallelepiped structure, the slider 182 extends outward from the left and right side walls of the shell 111, the second track 181 is configured as a columnar shape, and the slider 182 is provided with a through hole adapted to the second track 181, and the slider 182 is mounted on the second track 181 through the through hole.

[0147] The driving devices 13 are provided with two groups parallel to the extension direction of the sliding guide rail structure. The two groups of driving devices 13 act synchronously. The fixed end of the driving device 13 is set on the base 12, and the movable ends of the two driving devices 13 are respectively connected to the two sliders 182.

[0148] Preferably, the fixed end of the driving device 13 is arranged on the base 12 behind the slider 182, and the movable end of the driving device 13 is connected to the slider 182. Preferably, the end of the slider 182 away from the fixed end of the driving device 13, that is, the front end of the slider 182 is provided with a first driving portion 183 protruding and extending in a direction away from the material paving body 11, and the movable end of the driving device 13 is connected to the first driving portion 183.

[0149] The driving device 13 can be any one of a hydraulic cylinder, a pneumatic cylinder, and a linear motor, or a combination of two or more thereof.

[0150] In some specific embodiments, the first guide assembly 17 is a rolling guide rail structure, and the rolling guide rail structure includes a first rail 171 and a roller 172 adapted to the first rail 171 .

[0151] Specifically, Fig.13 and Fig.14 As shown, in this embodiment, the first track 171 is arranged on the frame 4, and a groove 1711 is provided on the top of the first track 171. The roller 172 is installed on the bottom of the base 12 through a rotating shaft. The roller 172 is arranged in the groove 1711 of the first track 171, and the peripheral wall of the roller 172 abuts against the inner wall of the groove 1711. The groove 1711 limits the roller 172 in the groove 1711.

[0152] In some possible embodiments, the cross-sectional shape of the bottom of the groove 1711 is the same as the cross-sectional shape of the outer peripheral wall of the roller 172 .

[0153] In some possible embodiments, the cross-sectional shape of the outer peripheral wall of the roller 172 is the same as the cross-sectional shape of the groove 1711 .

[0154] In some specific embodiments, the bottom of the groove 1711 is set to be flat, or to be set to be a shape that bulges upward in the middle along the length direction of the groove 1711, or to be set to be a shape that is concave downward in the middle along the length direction of the groove 1711. The outer peripheral wall of the roller 172 is fitted with the bottom of the groove 1711, and the groove wall of the groove 1711 extends upward and toward the outside of the groove 1711, thereby enhancing the limiting effect on the roller 172.

[0155] Preferably, in this embodiment, the rolling guide rail structure is provided with at least two groups arranged at intervals perpendicular to the extension direction thereof to ensure the support stability of the base 12 .

[0156] Preferably, in this embodiment, the rolling guide rail structure is provided with two groups, which are respectively arranged on the left and right sides of the bottom of the base 12 and between the frame 4, and each group of rolling guide rail structures is respectively provided with at least two rollers 172 arranged at intervals along the extension direction of the first track 171 to further improve the support stability of the base 12.

[0157] In this embodiment, the filter cylinder 2 is arranged on the extension path of the first guide assembly 17 and is separated from the cloth pushing and spreading device 1; limiting parts 1712 for limiting the roller 172 are provided at both ends of the first track 171, and the distance between the roller 172 and the limiting part 1712 at the front end of the first track 171 is less than or equal to the distance between the spreading body 11 and the filter cylinder 2.

[0158] Specifically, when the roller 172 abuts against the limiting portion 1712 at the front end of the first rail 171, the front end of the paving body 11 on the base 12 is aligned with the filter cylinder 2, so that the extension path of the second guide assembly 18 corresponds to the filter cylinder 2, and the front end of the paving body 11 extends at most to align with the outer edge of the first side of the filter cylinder 2.

[0159] Preferably, in this embodiment, when the roller 172 abuts against the limiting portion 1712 at the rear end of the first track 171 , the cloth pushing and spreading device 1 avoids at least a portion of the space above the discharge collecting hopper 3 .

[0160] Preferably, in this embodiment, when the roller 172 abuts against the limiting portion 1712 at the rear end of the first track 171 , the front end of the base 12 corresponds to the upper edge of the side of the discharge collecting hopper 3 away from the filter cylinder 2 .

[0161] In this embodiment, when each group of first guide components 17 is provided with multiple rollers 172, the rollers 172 abut against the limiting portion 1712 at the front end of the first rail 171, specifically, the rollers 172 arranged at the front end abut against the limiting portion 1712 at the front end of the first rail 171, and the rollers 172 abut against the limiting portion 1712 at the rear end of the first rail 171, specifically, the rollers 172 arranged at the rear end abut against the limiting portion 1712 at the rear end of the first rail 171.

[0162] In this embodiment, a front drive device 14 parallel to the extension direction of the rolling guide rail structure is arranged between the frame 4 and the base 12, and the front drive device 14 is used to drive the base 12 to reciprocate, that is, the front drive device 14 is used to drive the cloth pushing and spreading device 1 as a whole to reciprocate along the rolling guide rail structure.

[0163] In this embodiment, the fixed end of the front drive device 14 is arranged on the frame 4 , and the movable end is connected to the base 12 .

[0164] In some preferred embodiments, the front drive device 14 is provided with two groups, the two groups of front drive devices 14 act synchronously, and the two groups of front drive devices 14 are respectively arranged between the left and right sides of the base 12 and the frame 4. Thus, it can be ensured that the two sides of the base 12 can be subjected to force synchronously, and the smoothness of the movement of the base 12 is ensured.

[0165] Preferably, in this embodiment, the movable end of the front drive device 14 is connected to the middle of both sides of the base 12. Specifically, the middle of both sides of the base 12 is provided with a second drive part 121 extending outward, and the movable end of the front drive device 14 is connected to the second drive part 121.

[0166] Preferably, in this embodiment, the front driving device 14 and the first track 171 are arranged close to each other and in parallel.

[0167] In this embodiment, the front drive device 14 can be any one of a hydraulic cylinder, a pneumatic cylinder, and a linear motor, or a combination of two or more thereof.

[0168] Preferably, in this embodiment, the extension direction of the first guide component 17 is parallel to the extension direction of the second guide component 18, and when the base 12 and the paving body 11 are moving, the front end of the paving body 11 always corresponds to the first side of the filter cylinder 2.

[0169] In some specific embodiments, a material laying pipe 112 is provided inside the material laying body 11, and a material delivery pipe 15 connected to the material laying pipe 112 is provided outside the material laying body 11. The material delivery pipe 15 is connected to the material laying pipe 112 and is used to deliver materials to the material laying body 11. In order to adapt to the reciprocating motion of the material laying body 11, the material delivery pipe 15 is generally set as a hose. By setting the material delivery pipe as a hose, the material delivery pipe can move forward and backward with the base and the material laying body, and there is no need to install an additional pipe shaft with a steering function like a hard pipe. The complexity of the device is greatly reduced and the durability is improved.

[0170] In this embodiment, a dodge opening for evading the material delivery pipe 15 is provided at the rear end of the base 12 corresponding to the material delivery pipe 15. In this embodiment, the material laying body 11 includes a shell 111, and a material laying pipe 112 installed in the shell 111, the rear end of the material laying pipe 112 is connected to the rear side wall of the shell 111, and the material laying pipe 112 is provided with a plurality of material laying pipes 112 arranged at intervals along a feeding direction perpendicular to the material laying body 11, and each of the material laying pipes 112 is connected to a material delivery pipe 15, respectively.

[0171] The avoidance opening is arranged at the rear end of the base 12, corresponding to the material delivery pipe 15, and the extension length of the avoidance opening along the feeding direction perpendicular to the material paving body 11 is greater than or equal to the layout range of the material delivery pipe 15 at the rear end of the material paving body 11. By setting the avoidance opening, the smoothness of the reciprocating movement of the material paving body 11 can be further ensured.

[0172] In the present embodiment, a material spreading method for the above-mentioned water-containing material dehydration equipment is also provided. When spreading the material, the cloth pushing and spreading device 1 is first controlled to move along the first guide component 17 to the edge close to the top of the filter cylinder 2; then the material spreading body 11 is driven to reciprocate above the filter cylinder 2 along the second guide component 18, so that the filter cloth 71 is stacked and laid in the filter cylinder 2 and the material is sprayed onto the filter cloth 71.

[0173] Specifically, when it is necessary to spread material on the filter cloth 71, the cloth pushing and spreading device 1 is first driven forward as a whole by the front drive device 14, so that the cloth pushing and spreading device 1 is close to the filter cylinder 2, and the front end of the spreading body 11 on the base 12 is exactly corresponding to the first side of the filter cylinder 2, that is, the front end of the spreading body 11 is parallel to the first side of the filter cylinder 2, and the front end of the spreading body 11 corresponds to the middle of the first side of the filter cylinder 2. At this time, the spreading body 11 is in the retracted position, and the driving device 13 of the spreading body 11 is in the initial position. Then, the driving device 13 of the spreading body 11 drives the spreading body 11 to reciprocate between the first side and the second side of the filter cylinder 2, so that the filter cloth 71 is stacked in the filter cylinder 2, and in this process, the material is spread between two adjacent layers of filter cloth 71.

[0174] Preferably, in this embodiment, when the roller 172 abuts against the limiting portion 1712 at the rear end of the first track 171, the cloth pushing head 113 is placed outside the base 12, which can ensure that the material spreading body 11 and the base 12 are compact while avoiding interference between the cloth pushing head 113 and the base 12.

[0175] Embodiment 4

[0176] On the basis of the second embodiment, the present invention further introduces the structure of the material spreading body of a material spreading device 1 of a water-containing material dehydration device, such as Figures 1 to 14 shown.

[0177] The cloth pushing and spreading device 1 includes a spreading body 11, which includes a shell 111 and a spreading pipe 112 installed in the shell 111. An opening is provided at the bottom of the shell 111, and the spreading pipe 112 is installed in the shell 111. The spreading port 1121 of the spreading pipe 112 is provided in the opening.

[0178] In some specific embodiments, the material spreading opening 1121 extends vertically downward from the opening, at least to the same level as the bottom of the opening. Preferably, the material spreading opening 1121 at least partially extends below the opening.

[0179] In this embodiment, the bottom wall of the shell 111 can extend in a horizontal direction, or can extend obliquely upward or downward along the feeding direction of the material laying body 11, and the opening on the bottom wall of the shell 111 extends horizontally in a direction perpendicular to the feeding direction of the material laying body 11, and the material laying pipe 112 extends in the shell 111 in a direction parallel to the bottom wall of the shell 111, and the material laying port 1121 of the material laying pipe 112 bends vertically downward from the opening and extends through the opening to the bottom of the opening.

[0180] Preferably, in this embodiment, a plurality of the material laying pipes 112 are arranged along a feeding direction perpendicular to the material laying body 11. By providing a plurality of material laying pipes 112 to lay materials, it is helpful to improve the uniformity of material spreading.

[0181] The opening is a strip-shaped opening extending in a direction perpendicular to the feeding direction of the material laying body 11, and the opening extends in a direction perpendicular to the feeding direction of the material laying body 11. The material laying openings 1121 of each material laying pipe 112 are arranged along the length direction of the opening, and the material laying openings 1121 of each material laying pipe 112 have the same width in the feeding direction of the material laying body 11, and the discharge openings of each material laying pipe 112 are aligned with each other in the feeding direction perpendicular to the material laying body 11. Preferably, in this embodiment, the model of each material laying pipe 112 is the same, and the shape of the discharge opening of each material laying pipe 112 is the same.

[0182] Preferably, in this embodiment, the material laying opening 1121 extends in a horizontal direction.

[0183] Preferably, in this embodiment, the interval between two adjacent material laying openings 1121 is very small, specifically, the material laying openings 1121 of two adjacent material laying openings 1121 are close to each other, and the thickness of the tube wall between the two adjacent material laying openings 1121 is relatively small. Specifically, the thickness of the tube wall at both ends of the material laying openings 1121 of the material laying tube 112 along the feeding direction perpendicular to the material laying body 11 is less than or equal to the closed thickness of both ends along the feeding direction of the material laying body 11.

[0184] In some possible embodiments, the material laying pipe 112 includes an input section 1122, a diameter-reducing section 1123, and an output section 1124 sequentially arranged along the feeding direction of the material laying body 11, the output section 1124 is arranged to be flat, and the material laying port 1121 is bent and extended downward from the end of the output section 1124. Through the above arrangement, the material conveyed in the material laying pipe 112 gradually extends in a direction perpendicular to the feeding direction of the material laying body 11 during the conveying process, and gradually becomes thinner, that is, under the action of the pipe wall of the material laying pipe 112, the material gradually becomes thinner and wider, so that the material laying port 1121 can finally output a thin layer of material, so that the material is evenly laid on the filter cloth 71.

[0185] Preferably, the extension length of the opening is less than or equal to the width of the filter cloth 71 .

[0186] Further preferably, the output sections 1124 of two adjacent material laying pipes 112 fit together, and the total extension length of the output sections 1124 of each material laying pipe 112 along the feeding direction perpendicular to the material laying body 11 is less than or equal to the width of the filter cloth 71 .

[0187] Preferably, the extension direction of the output section 1124 is parallel to the bottom wall of the shell 111 .

[0188] In some preferred embodiments, the material laying pipe 112 includes a reducing section 1123 and an output section 1124, each of which has a channel. The second end of the output section 1124 is provided with a material laying port 1121. The second end of the reducing section 1123 is connected to the first end of the output section 1124, so that the channel of the reducing section 1123 is connected to the channel of the output section 1124; the channel of the output section 1124 has the same cross-section perpendicular to the forward direction of the material, and the bottom surface of the output section 1124 that supports the material is a plane; the cross-sectional area of ​​the channel of the reducing section 1123 at the second end is smaller than the cross-sectional area at the first end, and the vertical cross-sectional area of ​​the channel of the output section 1124 is the same as the vertical cross-sectional area of ​​the channel of the reducing section 1123 at the second end.

[0189] The first end of the variable diameter section 1123 is connected to the channel of the input section 1122 for conveying materials. The material from the input section 1122 enters the output section 1124 from the end of the variable diameter section 1123 with a larger vertical cross-sectional area. The change in the vertical cross-sectional area of ​​the channel of the output section 1124 exerts a pressurizing effect in the channel of the output section 1124, and the material is distributed more widely in the horizontal direction perpendicular to the flow of the material in the output section 1124 (i.e., the width of the channel). After flowing into the output section 1124 from the end of the variable diameter section 1123 with a smaller vertical cross-sectional area, the material is further distributed more widely horizontally in the channel of the output section 1124, and can occupy the entire channel of the output section 1124, and evenly flows out from the material laying port 1121 of the output section 1124 and is laid on the filter cloth.

[0190] In some embodiments, in the horizontal direction perpendicular to the material flow direction, the width of the second end of the channel of the reducing section 1123 is greater than the width of the first end. In the vertical direction perpendicular to the material flow direction, the height of the second end of the channel of the reducing section 1123 is less than the height of the first end.

[0191] In an optional solution, the width of the passage of the diameter-changing section 1123 gradually increases from the first end to the second end, and the height of the passage of the diameter-changing section 1123 gradually decreases from the first end to the second end.

[0192] By setting the channel structure of the variable diameter section 1123, the material enters the channel through the first end of the variable diameter section 1123. During the forward process, the pressure gradually increases, and the material occupies the variable diameter section 1123 and is continuously dispersed from the center position to both sides.

[0193] In an optional solution, the vertical cross section of the channel at the first end of the reducing section 1123 can be circular, quasi-circular, polygonal, elliptical, etc. In consideration of the convenience of processing and assembly, in a more preferred solution, the vertical cross section of the channel at the first end of the reducing section 1123 can be circular or quasi-circular.

[0194] The width direction of the vertical cross section of the channel of the diameter-reducing section 1123 at the second end is a polygon with straight lines. Preferably, it can be a polygon with parallel upper and lower sides, such as a parallelogram, a rectangle, etc.

[0195] In some embodiments, the cross-sectional area of ​​the channel of the reducing section 1123 at the second end is 0.7-1.0 times the cross-sectional area of ​​the first end.

[0196] In some embodiments, the ratio of the length of the reducing section 1123 in the material flow direction to the width of the channel of the reducing section 1123 at the second end is 1:0.6-1:3.

[0197] The width of the second end of the diameter-reducing section 1123 refers to the length of the channel of the output section 1124 in the horizontal direction perpendicular to the material flow direction. The length of the diameter-reducing section 1123 refers to the length between the first end and the second end.

[0198] In certain embodiments, in the material flow direction, the ratio of the length L1 of the diameter-reducing section 1123 to the length L2 of the output section 1124 is 1:0.5-1:8.

[0199] The vertical cross section of the output section channel is a polygon with straight lines in the width direction. Preferably, it can be a polygon with parallel upper and lower sides; more preferably, the structures on both sides between the top and bottom surfaces of the output section channel are symmetrically arranged. For example, the vertical cross section of the output section channel can be a rectangle, etc. That is, the output section channel and the variable diameter section channel have the same shape of the vertical cross section at the second end.

[0200] The material discharged from the second end of the variable diameter section 1123 flows into the channel of the output section 1124 toward the two side walls in the width direction, and can be continuously dispersed throughout the bottom of the channel of the output section 1124 and flow out evenly through the outlet of the output section 1124.

[0201] The upper end of the material paving opening 1121 is set to be an arc shape smoothly connected to the output section, and the material paving opening 1121 is downward. The lower end of the material paving opening 1121 is set to have a vertical cross-section that is the same as the vertical cross-section of the output section channel, preferably a rectangle.

[0202] The diameter-reducing section 1123 and the output section 1124 of this embodiment may be arranged in one piece or in separate pieces.

[0203] Through the material laying pipe 112 of this embodiment, the material flowing in from the first end of the variable diameter section 1123 can flow out through the material laying port 1121 evenly and continuously after passing through the channels of the first and second components, and be evenly and continuously distributed on the filter cloth. On the filter cloth, the thickness of the laid material is relatively uniform, or the surface of the material is relatively flat, and no additional steps or parts are required to flatten the laid material. Therefore, a good solid-liquid separation effect can be achieved while saving process or reducing parts.

[0204] In some specific embodiments, the material laying pipe 112 is installed on the rear side wall of the shell 111; the opening is set on the bottom wall of the shell 111, close to the front side wall of the shell 111. In this embodiment, the shell is preferably a horizontally extended rectangular structure. Of course, it can also be other structures with a cavity, and the material laying pipe 112 is placed in the cavity inside the shell. Specifically, the material laying pipe 112 can be welded to the shell 111, or the material laying pipe 112 and the shell 111 can be detachably connected. It only needs to ensure that during the feeding process of the material laying body 11, there is no relative movement between the material laying pipe 112 and the shell 111.

[0205] Preferably, in this embodiment, a mounting joint 16 is provided on the rear side wall of the shell 111, and the mounting joint 16 is fixed on the rear side wall of the shell 111. The mounting joint 16 at least partially extends into the shell 111, and the input section 1122 of the laying pipe 112 is sealedly connected to the mounting joint 16.

[0206] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with the present invention can make some changes or modifications to equivalent embodiments of equivalent changes using the technical contents suggested above without departing from the scope of the technical solution of the present invention. The implementation schemes in the above embodiments can be further combined or replaced. However, any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the solution of the present invention.

Claims

1. A cloth pressing assembly for a dehydration device for water-containing materials, characterized in that: include: A fixing portion (61); The movable part (62) comprises a rotating shaft (621) rotatably matched with the fixed part (61), and a cloth pressing rod (622) arranged on the rotating shaft (621). The cloth pressing rod (622) rotates with the rotating shaft (621) to press / loosen the filter cloth (71).

2. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 1, characterized in that: The cloth pressing rod (622) is perpendicular to the rotating shaft (621); Preferably, at least two cloth pressing rods (622) are arranged in an axial direction spaced apart from each other along the rotating shaft (621).

3. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 2, characterized in that: A bearing surface is provided below the rotating shaft (621), and the cloth pressing rod (622) presses the filter cloth (71) onto the bearing surface; the end of the cloth pressing rod (622) and the side facing the bearing surface are provided as a plane parallel to the bearing surface when pressing the filter cloth (71).

4. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 3, characterized in that: The cloth pressing rod (622) comprises: A neck portion (6221) extending from the outer peripheral wall of the rotation axis (621) in a direction perpendicular to the rotation axis (621); A head (6222) is arranged at an end of the neck (6221) away from the rotation axis (621), and the side of the head (6222) facing the bearing surface protrudes relative to the neck (6221) in a direction close to the bearing surface; The side of the head (6222) facing the bearing surface is a plane extending obliquely in a direction away from the rotation axis (621) and away from the bearing surface, and the angle between the plane and the neck (6221) is equal to the angle between the neck (6221) and the bearing surface when the pressure rod presses the filter cloth (71); Preferably, the plane of the head (6222) facing the bearing surface and the plane of the head (6222) away from the bearing surface are smoothly transitioned and connected at the end of the head (6222); Preferably, the end of the head has a certain thickness in the vertical direction perpendicular to the cloth pressing rod, and a chamfer is provided between the plane of the cloth pressing rod facing the bearing surface and the end face of the head away from the rotating axis, and a chamfer is provided between the plane of the cloth pressing rod away from the bearing surface and the end face of the head away from the rotating axis; or, the end of the head away from the rotating axis is set to be an arc shape.

5. The cloth pressing assembly of the water-containing material dehydration equipment according to any one of claims 1 to 4, characterized in that: The movable part (62) is configured to have a first position where the cloth pressing rod (622) presses the filter cloth (71) onto the bearing surface when rotating in a first direction, and a second position where a certain distance is formed between the cloth pressing rod (622) and the bearing surface when rotating in a second direction; The certain interval enables the front end of the cloth pushing and spreading device (1) along the feeding direction to at least partially extend between the bearing surface and the cloth pressing rod (622).

6. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 5, characterized in that: A cloth pushing head (113) extending obliquely downward is provided at the front end of the cloth pushing and spreading device (1) along the feeding direction; a first end of the cloth pushing head (113) is connected to the spreading body (11); when the cloth pushing head (113) abuts against the filter cloth (71), the filter cloth (71) covers the second end of the cloth pushing head (113) opposite to the first end; A notch (1135) corresponding to the cloth pressing rod (622) is provided in the middle of the second end of the cloth pushing head (113); the notch (1135) penetrates the cloth pushing head (113) in a vertical direction perpendicular to the first end to the second end of the cloth pushing head (113); the opening of the notch (1135) faces a direction away from the first end of the cloth pushing head (113); the end of the cloth pressing rod (622) away from the rotating shaft (621) passes through the notch (1135) from top to bottom, and presses the filter cloth (71) coated on the second end of the cloth pushing head (113) onto the filter cylinder (2); Preferably, the second end of the cloth pushing head (113) is lower than the material spreading opening (1121) at the bottom of the cloth pushing and spreading device (1) at least when the cloth pushing head (113) is in contact with the filter cloth (71).

7. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 6, characterized in that: In the direction from the first end to the second end of the cloth pushing head (113), at least the top of the cloth pushing head (113) is arranged as a plane inclined downward; Preferably, in a direction from the first end to the second end of the cloth pushing head (113), the thickness of the cloth pushing head (113) in a direction perpendicular to the direction from the first end to the second end gradually decreases.

8. The cloth pressing assembly of the water-containing material dehydration equipment according to any one of claims 1 to 4, characterized in that: The rotating shaft (621) is provided with a driving rod (623) whose extension direction is opposite to that of the cloth pressing rod (622), and the fixed portion (61) is provided with a driving component which is transmission-connected to the driving rod (623); Preferably, the driving member is a telescopic device; the two ends of the telescopic device are rotatably matched with the fixed part (61) and the driving rod (623) respectively; or, the telescopic device is fixedly installed on the fixed part (61), a strip hole is provided on the working end of the telescopic device, and a rotating shaft is provided at the end of the driving rod (623), and the rotating shaft is installed in the strip hole, and the length direction of the strip hole is perpendicular to the telescopic direction of the telescopic device.

9. The cloth pressing assembly of the water-containing material dehydration equipment according to claim 8, characterized in that: The fixing part (61) comprises: The first support seat (611) vertically extends in a direction perpendicular to the length of the filter cloth (71), and two shaft sleeves spaced apart from each other are arranged on the top of the first support seat (611); the two ends of the rotating shaft (621) are respectively installed in the two shaft sleeves; The second support base (612) is vertically arranged on a side of the first support base (611) away from the bearing surface, and the retractable device is arranged on the second support base (612).

10. A dehydration device for water-containing materials, characterized in that: It comprises a cloth-pushing and material-spreading device (1) and a filter cylinder (2), wherein a cloth-pressing assembly of the water-containing material dehydration device according to any one of claims 1 to 9 is arranged on a second side of the filter cylinder (2) away from the cloth-pushing and material-spreading device (1); Preferably, before the cloth pushing and spreading device (1) feeds from a first side of the filter cylinder (2) opposite to the second side to the second side, the end of the filter cloth (71) is fixed on the first side; When the cloth pushing and spreading device (1) is feeding toward the second side of the filter cylinder (2), it abuts against the filter cloth (71), spreads the filter cloth (71) and sprays the material onto the filter cloth (71); When the cloth pushing and spreading device (1) reaches the second side, the cloth pressing assembly presses the filter cloth (71) onto the filter cylinder (2), and the cloth pushing and spreading device (1) returns to its original position.

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