Filter cloth folding compression bar device for sludge filter-pressing dehydration

Abstract

The utility model belongs to the technical field of sludge treatment and disposal, and relates to a filter cloth folding compression bar device for sludge filter-pressing dehydration, which comprises a rotating rod, a rotating rod gear, a fixed outer circular tube, a folding rod, a motor and a motor gear, the rotating rod is vertically inserted into the fixed outer circular tube and is rotatably connected with the fixed outer circular tube, and the folding rod is connected with the motor gear. One end of the folding rod is fixed on the rotating rod and is vertically connected with the rotating rod; the rotating rod gear is fixedly arranged on the rotating rod in a sleeving mode, the rotating rod gear is connected with the motor gear, and the motor gear is connected with the motor so as to drive the rotating rod gear and the rotating rod to rotate; the fixed outer circular pipe is arranged on the side face of the filter cloth in the moving direction, and the arrangement height of the folding rod is matched with the height of the filter cloth, so that the folding rod is pressed above the filter cloth when rotating to the position perpendicular to the moving direction of the filter cloth.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sludge treatment and disposal technical field relates to a filter cloth folding pressure bar device for sludge filter pressing dewatering. BACKGROUND

[0002] Sludge dewatering reduction is the key link of municipal sludge safe treatment and disposal, and it is crucial to develop high-efficiency, low-energy sludge dewatering equipment. Sludge mechanical filter pressing dewatering is the most widely used sludge dewatering technology at present, among which, the ultra-high pressure filter pressing dewatering technology develops rapidly, can further reduce the sludge with 80% water content from sewage treatment plant to below 50-60%, and has simple dewatering process, less drug consumption and low cost.

[0003] In the ultra-high pressure filter pressing dewatering equipment, the sludge needs to be loaded on the filter cloth and folded back and forth through the filter cloth to form a uniformly folded filter cloth stack, and then the whole filter cloth is subjected to pressure dewatering. At present, when the filter cloth is folded back and forth, wrinkles are prone to occur at the folded part of the filter cloth, which causes the filter cloth to deflect and be difficult to align, and manual correction is required frequently. Moreover, when high-pressure filter pressing is performed, the filter cloth at the folded part is subjected to higher pressure, which easily causes damage to the filter cloth and reduces the service life of the filter cloth. SUMMARY

[0004] Therefore, the utility model aims at providing a filter cloth folding pressure bar device for sludge filter pressing dewatering to solve the problem of wrinkles at the folded part of the filter cloth when the filter cloth is folded back and forth.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A filter cloth folding pressure bar device for sludge filter pressing dewatering, comprising a rotating rod, a rotating rod gear, a fixed outer circular tube, a folding rod, a motor and a motor gear, the rotating rod is vertically inserted into the fixed outer circular tube and rotationally connected with the fixed outer circular tube, one end of the folding rod is fixed on the rotating rod and connected perpendicularly with the rotating rod;

[0007] The rotating rod gear is fixedly sleeved on the rotating rod, the rotating rod gear is connected with the motor gear, and the motor gear is connected with the motor to drive the rotating rod gear and the rotating rod to rotate;

[0008] The fixed outer circular tube is arranged on the side of the filter cloth movement direction, and the arrangement height of the folding rod matches the height of the filter cloth, so that the folding rod is pressed above the filter cloth when it is rotated to the position perpendicular to the filter cloth movement direction.

[0009] Further, the upper and lower ends of the fixed outer circular pipe are respectively provided with a circular pipe upper plate and a circular pipe lower plate, and a first bearing and a second bearing are respectively arranged on the circular pipe upper plate and the circular pipe lower plate, and the rotating rod is rotationally connected with the fixed outer circular pipe through the first bearing and the second bearing.

[0010] Further, the upper surface of the circular pipe upper plate is provided with a first upper plate baffle and a second upper plate baffle arranged at intervals in the circumferential direction, and the included angle between the first upper plate baffle and the second upper plate baffle is 90 degrees, the first upper plate baffle is parallel to the filter cloth movement direction, and the second upper plate baffle is arranged on the side of the circular pipe upper plate close to the filter cloth and is perpendicular to the filter cloth movement direction.

[0011] The lower surface of the rotating rod gear is provided with a gear baffle arranged between the first upper plate baffle and the second upper plate baffle to limit the rotating angle of the rotating rod, thereby controlling the folding rod to have two states of being perpendicular and parallel to the filter cloth movement direction.

[0012] Further, the side of the first upper plate baffle and the second upper plate baffle close to the gear baffle is provided with a stroke limit switch, and the stroke limit switch is electrically connected with the motor to form linkage control.

[0013] Further, at least one folding rod roller is rotationally arranged on the folding rod.

[0014] Further, the length of one folding rod covers half of the width of the filter cloth.

[0015] Further, the motor is connected with the fixed outer circular pipe through a fixed support, and the rotating rod gear is directly engaged with the motor gear.

[0016] Further, the motor gear and the rotating rod gear are connected through a synchronous toothed belt.

[0017] The beneficial effects of the utility model lie in:

[0018] The utility model provides a filter cloth folding pressure rod device for sludge pressure filtration dehydration, through the rotation of the folding rod, the filter cloth is pressed tightly in the filter cloth folding process, thereby effectively solve the problem that the filter cloth is prone to wrinkle when reciprocating folding, and a 90-degree limit rotating mechanism is also disclosed, the device drives the rotating rod to rotate through the motor, and then drives the folding rod to rotate within 90 degrees, realizes the accurate pressing of the filter cloth. Through the setting of the baffle and the stroke limit switch, the device can automatically control the motion trail of the folding rod, ensure that the filter cloth is stable and reliable when being pressed, and avoid the wrinkle and deflection of the filter cloth caused by improper folding in the traditional mode.

[0019] The innovation of the technical solution lies in multiple aspects. First, the device adopts a simple mechanical structure, realizing automatic control during the folding process of the filter cloth, greatly improving the work efficiency. Second, through the ingenious design of the baffle and the travel limit switch, the device can accurately control the rotation angle of the folding rod, ensuring the uniformity and consistency of the filter cloth folding. In addition, the device also takes into account the increase in thickness during the folding process of the filter cloth, by synchronously adjusting the height of the filter cloth folding table, so that the folding rod can always press the filter cloth, further improving the folding effect.

[0020] The filter cloth folding pressure rod device not only has a simple structure, is easy to assemble and disassemble, but also has high practicability. It can effectively avoid the formation of wrinkles at the folding place of the filter cloth, improve the folding efficiency of the filter cloth, and thus improve the stability and reliability of the entire sludge dewatering process. In addition, the device also reduces the frequency and intensity of manual correction, reduces the labor intensity of workers, and provides a high-efficiency and low-cost solution for the sludge dewatering treatment industry.

[0021] The other advantages, objects and features of the present application will be described in the subsequent specification to some extent, and to some extent, it will be obvious to those skilled in the art based on the study of the following text or can be taught from the practice of the present application. The objects and other advantages of the present application can be achieved and obtained by the following specification. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to make the purpose, technical scheme and advantages of the present application more clear, the preferred detailed description of the present application will be described below with reference to the drawings, in which:

[0023] Figure 1 is a structural schematic view of a filter cloth folding pressure rod device for sludge filter pressing dewatering in embodiment 1;

[0024] Figure 2 is a structural schematic view of a rotating rod gear in embodiment 1;

[0025] Figure 3 is a structural schematic view of a circular tube upper plate in embodiment 1;

[0026] Figure 4 is a structural schematic view of a filter cloth folding pressure rod device for sludge filter pressing dewatering in embodiment 2;

[0027] Figure 5 is a use method schematic view of a filter cloth folding pressure rod device for sludge filter pressing dewatering.

[0028] Figures: rotating rod 1, rotating rod gear 2, fixed outer circular tube 3, circular tube upper plate 4, circular tube lower plate 5, first bearing 6, second bearing 7, folding rod 8, folding rod roller 9, motor 10, motor gear 11, fixed support 12, gear stopper 13, first upper plate stopper 14, second upper plate stopper 15, stroke limit switch 16, synchronous toothed belt 17, screw hole 18. DETAILED DESCRIPTION

[0029] The other advantages and effects of the present application can be easily understood by those skilled in the art from the content disclosed in the present specification. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details in the present specification based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that the drawings provided in the following embodiments only illustrate the basic concept of the present application in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0030] It should be noted that the drawings are only used for exemplary illustration, and the representation is only a schematic diagram, not a physical diagram, and should not be understood as a limitation on the present application; in order to better illustrate the embodiments of the present application, some components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0031] The same or similar reference numerals in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, structure and operation, therefore the positional relationship described in the drawings is only used for exemplary illustration, and should not be understood as a limitation on the present application, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0032] Embodiment 1

[0033] Please refer to Figures 1-3 It is a filter cloth folding pressure rod device for sludge pressure filtration dewatering, which comprises a rotating rod 1, a rotating rod gear 2, a fixed outer circular tube 3, a circular tube upper plate 4, a circular tube lower plate 5, a first bearing 6, a second bearing 7, a folding rod 8, a folding rod roller 9, a motor 10, a motor gear 11 and a fixed support 12.

[0034] The lower end of the rotating rod 1 penetrates into the fixed outer circular tube 3, the upper and lower ends of the fixed outer circular tube 3 are respectively provided with disc flange structures, and the disc flange structures are respectively connected with the circular tube upper plate 4 and the circular tube lower plate 5 through the disc flange structures, and the rotating rod is respectively rotatably connected with the upper and lower ends of the fixed outer circular tube through the first bearing 6 and the second bearing 7;

[0035] Specifically, the circular tube lower plate 5 is connected with the disc flange structure at the lower end of the fixed outer circular tube 3 through the screw hole 18 and the cooperation of the bolts to fix the second bearing 7, and the circular tube upper plate 4 is connected with the disc flange structure at the upper end of the fixed outer circular tube 3 through the screw hole 18 and the cooperation of the bolts to fix the first bearing 6. The fixed outer circular tube 3 supports the weight of the entire device and plays a fixing role, and the rotating rod 1 freely rotates around its axis in the center of the fixed outer circular tube.

[0036] The folding rod 8 penetrates through the rotating rod 1 through the left end circular hole and is fixedly installed on the upper end of the rotating rod 1 through the screw hole, and the folding rod 8 is at a 90-degree angle with the rotating rod 1, and the length of the folding rod 8 is set to be about half of the width of the filter cloth; and the folding rod 8 is provided with a folding rod roller 9 at the right end, and the number of the folding rod roller 9 can be set to 1-4 according to the length of the folding rod 8, and the folding rod roller 9 is used to reduce the frictional resistance of the folding rod when rotating.

[0037] The rotating rod gear 2 has a hollow circular hole to be sleeved on the rotating rod 1 and is fixed on the rotating rod 1 through the screw hole;

[0038] The motor 10 is directly fixed on the fixed outer circular tube 3 through the fixed support 12, and the output end of the motor 10 is connected with the motor gear 11 to drive the motor gear 11 to rotate through the motor 10, and the motor gear is flush with the rotating rod gear and is engaged to drive the rotating rod gear 2 to rotate, thereby driving the rotating rod 1 and the folding rod 8 to rotate.

[0039] As shown in Figure 2 and Figure 3 A rectangular gear baffle 13 is arranged on the lower surface of the rotating rod gear 2 along the radial direction of the gear, first and second upper plate baffles 14 and 15 are arranged on the upper surface of the circular tube upper plate 4 along the circumferential direction, the included angle between the first and second upper plate baffles 14 and 15 is 90 degrees, and travel limit switches 16 are installed on the opposite sides of the first and second upper plate baffles 14 and 15, the travel limit switches 16 are electrically connected with the motor 10 to form linkage control.

[0040] When installed, the gear stopper 13 is between the first upper plate stopper 14 and the second upper plate stopper 15, when the rotating rod gear 2 rotates, the gear stopper 13 hits the stroke limiter 16 on the first upper plate stopper 14 and the second upper plate stopper 15, the motor 10 stops working. The second upper plate stopper 15 is arranged on the side of the circular tube upper plate 4 close to the filter cloth, and is perpendicular to the movement direction of the filter cloth, the first upper plate stopper 14 is parallel to the movement direction of the filter cloth, so that the rotating rod 1 can only rotate within 90 degrees between the first upper plate stopper 14 and the second upper plate stopper 15, thereby controlling the folding rod 8 to rotate within 90 degrees, and making the gear stopper 13 rotate to the first upper plate stopper 14, parallel to the filter cloth; rotate to the second upper plate stopper 15, parallel to the filter cloth vertically, and press the filter cloth.

[0041] Please refer to Figure 5 , the method of folding the filter cloth with the folding pressure rod device is introduced: two folding pressure rod devices are arranged on both sides of the filter cloth and at the right end of the filter cloth, and move according to the following steps. Only the right end of the filter cloth needs the folding pressure rod device to assist the folding of the filter cloth, and the method is the same if the left end of the filter cloth also needs the folding pressure rod device to assist the folding of the filter cloth.

[0042] 1) The filter cloth is laid flat on the filter cloth folding table, before the filter cloth moves to the left, the folding rod 8 rotates from a position parallel to the movement direction of the filter cloth to a position perpendicular to the movement direction of the filter cloth, and presses the right end of the filter cloth, the width of the two folding rods 8 pressing the filter cloth accounts for more than 80% of the total width of the filter cloth;

[0043] 2) The filter cloth moves to the left and covers the rotating rod 1, until it moves to the left end, and completes the folding of one layer of filter cloth;

[0044] 3) The filter cloth starts to fold to the right from the left end, and the folding rod 8 starts to rotate synchronously, and rotates to the side direction parallel to the filter cloth;

[0045] 4) After the filter cloth is folded to the right, the first step is repeated;

[0046] Repeat the above steps until the entire filter cloth folding operation is completed.

[0047] Specifically, during the folding process of the filter cloth, as the thickness of the folded filter cloth increases, the filter cloth folding table descends synchronously, so that the height of the folding rod 8 matches the height of the filter cloth, thereby enabling the folding rod 8 to always press the right end of the filter cloth.

[0048] Example 2

[0049] Please refer to Figure 4The difference between the embodiment and the embodiment 1 is that the motor 10 is not connected with the fixed outer circular tube 3, but is connected on the external motor fixing surface, and the motor gear 11 is connected with the rotating rod gear 2 through the synchronous toothed belt 17, so that the meshing of the motor gear 11 and the rotating rod gear 2 is realized.

[0050] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the purpose and scope of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A filter cloth folding and pressing rod device for sludge dewatering, characterized in that: It includes a rotating rod, a rotating rod gear, a fixed outer tube, a folding rod, a motor, and a motor gear. The rotating rod is vertically inserted into the fixed outer tube and rotatably connected to the fixed outer tube. One end of the folding rod is fixed to the rotating rod and is perpendicularly connected to the rotating rod. The rotating rod gear is fixedly sleeved on the rotating rod, the rotating rod gear is connected to the motor gear, and the motor gear is connected to the motor to drive the rotating rod gear and the rotating rod to rotate; The fixed outer circular tube is arranged on the side of the filter cloth in the direction of movement, and the arrangement height of the folding rod is matched with the height of the filter cloth, so that when the folding rod rotates to a position perpendicular to the direction of movement of the filter cloth, it presses on the filter cloth.

2. The filter cloth folding and pressing rod device for sludge dewatering according to claim 1, characterized in that: An upper tube plate and a lower tube plate are respectively provided at the upper and lower ends of the fixed outer tube, and a first bearing and a second bearing are respectively provided on the upper tube plate and the lower tube plate, and the rotating rod is rotatably connected to the fixed outer tube through the first bearing and the second bearing.

3. The filter cloth folding and pressing rod device for sludge dewatering according to claim 2, characterized in that: The upper surface of the upper plate of the circular tube is provided with a first upper plate baffle and a second upper plate baffle arranged at intervals along the circumferential direction, and the included angle between the first upper plate baffle and the second upper plate baffle is 90 degrees. The first upper plate baffle is parallel to the direction of movement of the filter cloth, and the second upper plate baffle is arranged on the side of the upper plate of the circular tube close to the filter cloth and perpendicular to the direction of movement of the filter cloth. A gear baffle is provided on the lower surface of the rotating rod gear. The gear baffle is installed between the first upper plate baffle and the second upper plate baffle to limit the rotation angle of the rotating rod, thereby controlling the folding rod to have two states: perpendicular and parallel to the direction of movement of the filter cloth.

4. The filter cloth folding and pressing rod device for sludge dewatering according to claim 3, characterized in that: Both the first upper plate baffle and the second upper plate baffle are provided with travel limit switches on the side near the gear baffle. The travel limit switches are electrically connected to the motor to form a linkage control.

5. The filter cloth folding and pressing rod device for sludge dewatering according to claim 1, characterized in that: At least one folding rod roller is rotatably fitted on the folding rod.

6. The filter cloth folding and pressing rod device for sludge dewatering according to claim 1, characterized in that: The length of one of the folding rods covers half the width of the filter cloth.

7. The filter cloth folding and pressing rod device for sludge dewatering according to claim 1, characterized in that: The motor is connected to the fixed outer tube via a fixed bracket, and the rotating rod gear directly meshes with the motor gear.

8. The filter cloth folding and pressing rod device for sludge dewatering according to claim 1, characterized in that: The motor gear and the rotating rod gear are connected by a synchronous toothed belt.

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