Search

CN-119612909-B - Cloth pressing assembly of dewatering equipment and control method of dewatering equipment

CN119612909BCN 119612909 BCN119612909 BCN 119612909BCN-119612909-B

Abstract

The invention provides a cloth pressing assembly of dewatering equipment and a control method of the dewatering equipment, wherein the cloth pressing assembly of the dewatering equipment comprises a pressing rod, a supporting frame, a connecting rod, a driving piece and a connecting rod, wherein the connecting rod is hinged to the supporting frame, the other end of the connecting rod is hinged to the connecting rod, the connecting rod is arranged above or below the supporting frame and can slide along the length direction of the pressing rod, the driving piece is connected with the pressing rod in a sliding manner through a guiding assembly, the extending direction of the guiding assembly is parallel to the rotating surface of the connecting rod and is arranged at an angle with the connecting rod, the moving path of the driving piece is parallel to the connecting rod, the driving piece drives the connecting rod to rotate in the sliding process of the pressing rod along the connecting rod, and the connecting rod slides along the pressing rod to drive the pressing rod to slide along the guiding assembly. Through the arrangement, the driving piece can be driven by one power source to move towards the direction close to the filter cylinder, so that the compression bar is fed towards the direction close to the filter cloth and is pressed downwards, the power source for driving the compression bar is reduced, the cost of equipment is reduced, and the control system of the cloth pressing assembly is simplified.

Inventors

  • HONG CHEN
  • XING YI
  • ZHAO CHENGWANG

Assignees

  • 北京科技大学
  • 苏州苇杭环境科技有限公司

Dates

Publication Date
20260508
Application Date
20241113

Claims (15)

  1. 1. Cloth pressing assembly of dewatering equipment, including depression bar (51), its characterized in that still includes: The support frame (521) is hinged with a side link (522), the other end of the side link (522) is hinged with a connecting rod (523), the connecting rod (523) is arranged above or below the support frame (521), and the connecting rod (523) can slide along the compression bar (51) in the length direction; The driving piece (524) is in sliding connection with the compression bar (51) through the guide assembly (54), the extending direction of the guide assembly (54) is parallel to the rotating surface of the side link (522) and is arranged at an angle with the connecting rod (523), the moving path of the driving piece (524) is parallel to the connecting rod (523), the driving piece (524) drives the compression bar (51) to rotate in the sliding process of the connecting rod (523), and the connecting rod (523) drives the compression bar (51) to slide along the guide assembly (54) along the sliding of the compression bar (51), so that the displacement of the compression bar (51) along the horizontal direction and the displacement along the vertical direction are synchronously or successively carried out.
  2. 2. The cloth pressing assembly of the dewatering equipment according to claim 1, wherein the driving piece (524) is arranged at a first end of the pressing rod (51) and is provided with an abutting part corresponding to one side of the side link (522) away from a second end of the pressing rod (51); on the moving path of at least part of the driving piece (524) to the second end of the pressing rod (51), the abutting part is in sliding fit with one side of the side link (522) away from the second end of the pressing rod (51), and the side link (522) is driven to rotate towards the second end of the pressing rod (51).
  3. 3. The cloth pressing assembly of the dewatering equipment according to claim 2, wherein in the process that the driving member (524) moves towards the second end of the pressing rod (51), the first working state of the driving member (524) is that the abutting part is separated from the side link (522); The second working state of the driving piece (524) is that the abutting part is in sliding fit with one side of the second end of the side link (522) away from the compression bar (51) and drives the side link (522) to rotate towards the second end of the compression bar (51).
  4. 4. A cloth pressing assembly of a dewatering apparatus according to claim 3, characterized in that the surface of the driving member (524) for abutment with the side frame bar (522) is provided as an arcuate surface.
  5. 5. A cloth pressing assembly of a dewatering apparatus according to any of the claims 1 to 4, The support frame (521) is provided with a support frame (5211) protruding in a direction approaching the connecting rod (523) and extending in a direction parallel to the connecting rod (523), and the driving element (524) is slidably arranged on the support frame (5211).
  6. 6. A press fabric assembly of a dewatering appliance as claimed in claim 5, wherein, The side link (522) includes a first rod portion and a second rod portion clamped at both sides of the link (523), and the support frame (5211) extends at least partially between the first rod portion and the second rod portion.
  7. 7. The cloth pressing assembly of the dewatering apparatus of claim 6, wherein the driving member (524) includes a first abutting portion and a second abutting portion corresponding to the first and second lever portions, respectively, with a space corresponding to the support frame (5211) provided therebetween.
  8. 8. A cloth pressing assembly of a dewatering apparatus according to any of the claims 1 to 4, The side link (522) is provided with a plurality of side links (522) which are arranged at intervals along the length direction of the connecting rod (523), the side links (522) are equal in length and are parallel to each other, or the side link (522) is provided with a plurality of groups which are arranged at intervals along the length direction of the connecting rod (523), the side links (522) are equal in length and are parallel to each other, and each group of side links (522) comprises a first rod part and a second rod part which are clamped at two sides of the connecting rod (523).
  9. 9. Cloth pressing assembly of a dewatering apparatus according to claim 8, characterized in that the side frames are provided with two sets of links connected between the two ends of the link (523) and the support frame (521), respectively, forming a parallelogram mechanism on the support frame (521).
  10. 10. A press fabric assembly of a dewatering appliance as claimed in claim 9, An elastic piece (525) for driving the side link (522) to rotate towards the first end of the compression bar (51) is arranged between at least one side link (522) and the supporting frame (521).
  11. 11. Cloth pressing assembly of a dewatering apparatus according to claim 10, characterized in that the elastic element (525) comprises a spring type telescopic rod hinged at both ends to the support frame (521) and the side link (522), respectively.
  12. 12. A cloth pressing assembly of a dewatering apparatus according to any of the claims 1 to 4, The guide assembly (54) includes: A slide rail (541) disposed on the driving member (524) or at a first end of the compression bar (51) and disposed at an angle to the link (523); The sliding sleeve (542) is arranged at the first end of the compression bar (51) or on the driving piece (524) corresponding to the sliding rail (541) and sleeved on the sliding rail (541).
  13. 13. The cloth pressing assembly of the dewatering apparatus of claim 12, wherein the extending direction of the rail is perpendicular to the link.
  14. 14. A cloth pressing assembly of a dewatering apparatus according to any of the claims 1 to 4, The connecting rod (523) is arranged above the supporting frame (521), and when the driving piece (524) is at the initial position, the side frame rod (522) obliquely extends from bottom to top to a direction approaching to the filter cloth.
  15. 15. A method of controlling a dewatering apparatus comprising a filter vat (2), the filter vat (2) being provided with a cloth pressing assembly of the dewatering apparatus according to any one of the preceding claims 1 to 14 near a first side of the cloth pushing and spreading device (1), characterized in that the method comprises: The cloth pressing assembly presses the filter cloth (71) on the filter cylinder (2) before the cloth pushing and spreading device (1) is fed from the first side edge of the filter cylinder (2) to the second side edge far away from the cloth pushing and spreading device (1); in the process that the cloth pushing and spreading device (1) retreats from the second side of the filter cylinder (2), the driving piece (524) moves in the direction away from the filter cloth, and the lifting height of the compression rod (51) in the process of withdrawing the compression rod (51) from the filter cloth (71) is limited by the cloth pushing and spreading device (1).

Description

Cloth pressing assembly of dewatering equipment and control method of dewatering equipment Technical Field The invention belongs to the technical field of sludge treatment, and particularly relates to a cloth pressing assembly of dewatering equipment and a control method of the dewatering equipment provided with the cloth pressing assembly. Background The water content of the surplus sludge is generally 80% or more. Sludge dewatering is a key step in its treatment process. The characteristic that the sludge is difficult to deeply dehydrate is a bottleneck problem for limiting harmless and recycling treatment of the sludge. The solid-liquid separation method is various, including squeezing, centrifuging, etc., and the corresponding solid-liquid separation equipment is also various. 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 that the stacking extrusion device is widely applied. The filter cloth of the accumulation extrusion device is generally ultra-long continuous filter cloth, and in the working process, multiple layers of filter cloth are required to be paved in a lamination way, and the sludge is uniformly paved between the filter cloth. When the filter cloth is laminated and paved, the filter cloth is fixed by the cloth pressing assembly, and mainly consists of a front cloth pressing assembly and a rear cloth pressing assembly, and the filter cloth is fixed by the front cloth pressing assembly and the rear cloth pressing assembly in the paving process. The front cloth pressing assembly is used for pressing the proximal end of the filter cloth, the discharge port of the sludge spreading mechanism is used for pushing the filter cloth forward, when the sludge spreading mechanism reaches the extreme position of the far end, the rear cloth pressing assembly presses the distal end of the filter cloth, the sludge spreading mechanism is retreated, and when the discharge port of the sludge spreading mechanism exits from the filter cylinder, the front cloth pressing assembly is pulled out from two sides of the filter cloth and then pressed on the filter cloth on the previous layer. However, in order to ensure the compression effect on the filter cloth, two power sources are generally required to drive the front cloth pressing assembly of the existing stacking extrusion device, for example, in the chinese patent application No. CN202023099235.0, a fixing device for stacking filter cloth is disclosed, and the front press rod mechanism includes a vertical lifting mechanism and a horizontal telescopic mechanism, so as to control four movement positions of the horizontal press rod. This solution requires two power sources, which is disadvantageous for reducing the cost of the device and for simplifying the control system. Therefore, designing a cloth pressing assembly of a dewatering device, which can utilize a power source to drive a pressing rod of the cloth pressing assembly to feed and press downwards, and realize fixation of one end of the filter cloth close to a sludge spreading mechanism, becomes a technical problem to be solved by the skilled person. Disclosure of Invention The invention provides a cloth pressing assembly of dewatering equipment, which is used for solving the problems of high cost and complex control caused by the fact that the existing cloth pressing assembly is driven by two power sources. The invention aims to solve the problem of how to utilize a power source to drive a pressing rod of a cloth pressing assembly to feed and press downwards in a direction close to filter cloth, and to fix one end of the filter cloth close to a cloth pushing and spreading device. The invention also aims to solve the problem of how to avoid the excessive lifting of the end, close to the cloth pushing and spreading device, of the filter cloth by the pressure lever in the resetting process of the pressure lever. In order to solve the technical problems, the invention adopts the basic conception of the technical scheme that: The cloth pressing assembly of the dewatering equipment comprises a pressing rod, a supporting frame, a driving piece, a guiding assembly, a driving path and a driving piece, wherein the supporting frame is hinged with a side link, the other end of the side link is hinged with a connecting rod, the connecting rod is arranged above or below the supporting frame and can slide along the pressing rod in the length direction of the supporting frame, the driving piece is connected with the pressing rod in a sliding mode, the extending direction of the guiding assembly is parallel to the rotating surface of the side link and is arranged at an angle with the connecting rod, the moving path of the driving piece is parallel to the connecting rod, and in the process that the driving piece drives the pressing rod to slide along the connecting rod, the connecting rod is driven to rotat