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CN-122013582-A - Double-roller extrusion concentration equipment for efficiently dehydrating chemi-mechanical pulp

CN122013582ACN 122013582 ACN122013582 ACN 122013582ACN-122013582-A

Abstract

The invention relates to double-roller extrusion concentration equipment for efficiently dehydrating chemi-mechanical pulp, which relates to the technical field of pulping and papermaking, wherein a primary extrusion mechanism is arranged in one side of an operation box below a feed inlet, a conveying mechanism is arranged below one side of the primary extrusion mechanism, extrusion rollers are symmetrically arranged at one side of the operation box, which is far away from the primary extrusion mechanism, rotating shafts at the front side and the rear side of the extrusion rollers at the lower side are rotatably connected to the side wall of the operation box through bearings, the extrusion rollers at the upper side are connected with the side wall of the operation box through an adjusting mechanism, an output shaft of a driving motor is connected with the extrusion rollers at the lower side through a synchronous wheel transmission assembly, a linkage mechanism is arranged on the rear side wall of the operation box, the linkage mechanism is connected with the rotating shafts at the rear side of the two extrusion rollers, and the linkage extrusion mechanism with adjustable primary extrusion and double-roller pressure is used for realizing the graded efficient dehydration of chemi-mechanical pulp, the quality and the dehydration uniformity are remarkably improved, and meanwhile, the energy consumption of unit yield is flexibly adapted to different pulp characteristics.

Inventors

  • LUO JUNYUAN
  • WANG JUNMING
  • FU YUJUN
  • JIN XIN

Assignees

  • 江苏博汇纸业有限公司

Dates

Publication Date
20260512
Application Date
20260407

Claims (9)

  1. 1. The double-roller extrusion concentration equipment for efficiently dehydrating the chemical machine slurry is characterized by comprising an operation box (1), supporting legs (2) and a discharge pipe (3), wherein the supporting legs (2) are fixed at four corners of the outer bottom wall of the operation box (1), a feed inlet (1-1) is formed in one side of the top wall of the operation box (1), a liquid outlet pipe (4) and the discharge pipe (3) are respectively arranged on two sides of the bottom wall of the operation box (1), a partition plate (5) is arranged between the liquid outlet pipe (4) and the discharge pipe (3), and the equipment further comprises: The device comprises a preliminary extrusion mechanism (6), wherein the preliminary extrusion mechanism (6) is arranged in one side of the operating box (1) below the feed inlet (1-1), a conveying mechanism (7) is arranged below one side of the preliminary extrusion mechanism (6), and the conveying mechanism (7) is connected with the side wall of the operating box (1); The two extrusion rollers (8) are symmetrically arranged at one side, far away from the primary extrusion mechanism (6), of the operation box (1), the extrusion rollers (8) at the lower side are abutted against the upper side of the partition plate (5), rotating shafts at the front side and the rear side of the extrusion rollers (8) are screwed on the side wall of the operation box (1) through bearings, the rotating shafts at the rear side of the extrusion rollers (8) are exposed out of the rear side wall of the operation box (1), and the extrusion rollers (8) at the upper side are connected with the side wall of the operation box (1) through an adjusting mechanism (9); The driving motor (10) is fixed on the outer bottom wall of the operation box (1) through a bracket, and an output shaft of the driving motor (10) is connected with the extrusion roller (8) at the lower side through a synchronous wheel transmission assembly; The linkage mechanism (11), the linkage mechanism (11) set up on the back lateral wall of control box (1), the rotation axis connection of linkage mechanism (11) and two squeeze rolls (8) rear side.
  2. 2. The double-roller extrusion concentrating device for efficiently dehydrating chemi-mechanical pulp, as set forth in claim 1, wherein guide plates (12) are fixed on both side walls of the partition plate (5), the other sides of the guide plates (12) are fixed on the inner bottom wall of the operation box (1) after being inclined downwards, and one side of each guide plate (12) inclined downwards is located on one side above the liquid outlet pipe (4) and the liquid outlet pipe (3).
  3. 3. The double-roller extrusion and concentration equipment for efficiently dehydrating chemi-mechanical pulp according to claim 1, wherein the preliminary extrusion mechanism (6) comprises: The filter supporting plate (6-1), the filter supporting plate (6-1) is arranged at the lower side of the feed inlet (1-1), the front and rear sides of the filter supporting plate (6-1) are fixed on the front and rear inner walls of the operation box (1), the center of the filter supporting plate (6-1) is arc-shaped, the two sides of the filter supporting plate (6-1) are arranged in an upward inclined mode, and the filter supporting plate (6-1) is fixed on the inner top wall of the operation box (1) after being inclined upwards at one side far away from the extrusion roller (8); The pressurizing roller (6-2) is arranged in the arc-shaped edge of the filtering supporting plate (6-1), the front end and the rear end of the pressurizing roller (6-2) are respectively connected in the front side wall and the rear side wall of the operation box (1) in a screwed mode through bearings, and one end of the pressurizing roller (6-2) is connected with a rotating shaft on the extruding roller (8) at the lower side through a synchronous wheel transmission assembly; The guide plate (6-3), guide plate (6-3) fix on the slope edge of filtration fagging (6-1) opposite side, after the opposite side of guide plate (6-3) downward sloping, hang in the upside of conveying mechanism (7), be fixed with baffle (6-4) on the lower lateral wall of guide plate (6-3), baffle (6-4) and conveying mechanism (7) cooperate conflict setting.
  4. 4. A double-roller extrusion and concentration device for efficiently dehydrating chemical pulp according to claim 3, wherein the conveying mechanism (7) comprises: The conveying net belt (7-1), the conveying net belt (7-1) is arranged at the lower side of the guide plate (6-3), one side of the outer belt surface of the conveying net belt (7-1) is in contact with the baffle plate (6-4), the inside of the conveying net belt (7-1) is symmetrically provided with driving wheels (7-2) left and right, the front end and the rear end of the driving wheels (7-2) are respectively connected to the front inner wall and the rear inner wall of the operation box (1) in a rotating mode through bearings, and one end of one driving wheel (7-2) is connected with a rotating shaft at one end of the extrusion roller (8) at the lower side through a synchronous wheel transmission assembly; the conveying platform (7-3) is arranged between the other side of the outer belt surface of the conveying net belt (7-1) and the lower squeeze roller (8) in a collision manner, and the front side and the rear side of the conveying platform (7-3) are respectively fixed on the front inner wall and the rear inner wall of the operation box (1); The supporting platform (7-4), supporting platform (7-4) set up in carrying guipure (7-1), and the upper surface of supporting platform (7-4) and the interior area face of carrying guipure (7-1) upside cooperate conflict setting, are provided with several on supporting platform (7-4) and are the wash port (7-4-1) that the toper set up.
  5. 5. The double-roller extrusion concentrating device for efficiently dehydrating chemi-mechanical pulp, as claimed in claim 4, is characterized in that a wiping roller (13) is abutted against the outer belt surface of the lower side of the conveying net belt (7-1), the front end and the rear end of the wiping roller (13) are respectively screwed on the front inner wall and the rear inner wall of the operation box (1) through bearings, and one end of the wiping roller (13) is connected with one driving wheel (7-2) through a synchronous wheel transmission assembly.
  6. 6. The double-roller extrusion and concentration equipment for efficiently dehydrating chemical pulp according to claim 1, wherein the adjusting mechanism (9) comprises: The two sliding blocks (9-1) are respectively screwed on the rotating shafts on the front side and the rear side of the extrusion roller (8) at the upper side through bearings, and the sliding blocks (9-1) are arranged in sliding grooves on the front inner wall and the rear inner wall of the operation box (1) in a sliding way; The two adjusting blocks (9-2) are symmetrically fixed on the two side walls of one sliding block (9-1) left and right, the adjusting blocks (9-2) are arranged in adjusting grooves on the inner wall of the sliding groove in a sliding way, adjusting screw rods (9-3) are screwed in the adjusting blocks (9-2) through threads, the adjusting screw rods (9-3) are screwed with the adjusting grooves through bearings, and the two adjusting screw rods (9-3) are connected through a synchronous wheel transmission assembly; the adjusting rod (9-4), adjusting rod (9-4) connect on the lateral wall of control box (1) through the bearing soon, adjusting rod (9-4) are connected with the lower extreme transmission of one of them adjusting screw (9-3) through worm gear pair, cover is established and is fixed with rolling disc (9-5) on the outer end of adjusting rod (9-4).
  7. 7. The double-roller extrusion concentrating device for efficiently dehydrating chemical pulp, as claimed in claim 1, is characterized in that a graphite waterproof pad (14) is fixed on the rear end wall of the upper extrusion roller (8), and the graphite waterproof pad (14) is positioned on the outer side of a chute on the inner wall of the operation box (1).
  8. 8. The double-roller extrusion and concentration equipment for efficiently dehydrating chemical pulp, as claimed in claim 1, wherein the linkage mechanism (11) comprises: The driving gear (11-1), the driving gear (11-1) is sleeved and fixed on a rotating shaft at the rear end of the extrusion roller (8) at the lower side, a first connecting plate (11-2) sleeved and screwed at the rear end of the rotating shaft of the extrusion roller through a bearing is arranged at the rear side of the driving gear (11-1), a first linkage gear (11-3) is screwed at the other side of the first connecting plate (11-2) through a shaft lever, and the first linkage gear (11-3) is meshed with the driving gear (11-1); The second linkage gear (11-4) is meshed with the first linkage gear (11-3) at one side far away from the driving gear (11-1), and the first linkage gear (11-3) is hinged with the second linkage gear (11-4) through a second connecting plate (11-5); The driven gear (11-6), driven gear (11-6) cover establish and fix on the axis of rotation of squeeze roll (8) rear end of upside, driven gear (11-6) and No. two linkage gears (11-4) meshing sets up, the rear side of driven gear (11-6) is provided with the cover and establishes and connect third connecting plate (11-7) at squeeze roll axis of rotation rear end through the bearing soon, no. three connecting plate (11-7) connect soon through the bearing with the axostylus axostyle on No. two linkage gears (11-4).
  9. 9. The double-roller extrusion concentrating device for efficiently dehydrating chemi-mechanical pulp, as claimed in claim 1, is characterized in that a protective cover (15) is covered on the outer side of the linkage mechanism (11), the protective cover (15) is fixed on the outer wall of the rear side of the operation box (1), a rotating shaft of the rear side of the extruding roller (8) on the lower side is screwed on the rear side wall of the protective cover (15) through a bearing, and the rotating shaft of the rear end of the extruding roller (8) on the upper side is inserted in a strip-shaped groove on the rear inner wall of the protective cover (15).

Description

Double-roller extrusion concentration equipment for efficiently dehydrating chemi-mechanical pulp Technical Field The invention relates to the technical field of pulping and papermaking, in particular to double-roller extrusion concentration equipment for efficiently dehydrating chemi-mechanical pulp. Background In the process of chemical mechanical pulp production, efficient dehydration is a key link for reducing energy consumption and improving pulp quality. At present, common dehydration equipment such as a single-roll press or a screw extruder has the problems of uneven dehydration, high energy consumption, poor adaptability to high-concentration slurry and the like. Especially when treating high viscosity's chemical machine thick liquid, the phenomenon such as drainage channel jam, extrusion pressure are unstable, thick liquid layer thickness is difficult to accurate control easily appear in traditional equipment, lead to dehydration inefficiency, and the thick liquid dryness after the extrusion is difficult to satisfy follow-up technological requirement. In addition, the pressure adjustment of the existing equipment is not flexible enough, dehydration parameters cannot be optimized rapidly according to different raw material characteristics, and the continuity and stability of production are affected. Disclosure of Invention Aiming at the defects and shortcomings of the prior art, the invention provides the double-roller extrusion concentration equipment for efficiently dehydrating the chemical machine slurry, which is reasonable in design and convenient to use, realizes the graded efficient dehydration of the chemical machine slurry through the preliminary extrusion and double-roller pressure-adjustable linkage extrusion mechanism, remarkably improves the discharging dryness and the dehydration uniformity, simultaneously can flexibly adapt to different slurry characteristics, and reduces the energy consumption of unit yield. In order to achieve the purpose, the invention adopts the following technical scheme that the device comprises an operation box, supporting legs and a discharging pipe, wherein the supporting legs are fixed at four corners of the outer bottom wall of the operation box, a feeding hole is arranged at one side of the top wall of the operation box, the two sides of the bottom wall of the operation box are respectively provided with the discharging pipe and the discharging pipe, a baffle is arranged between the discharging pipe and the discharging pipe, and the device further comprises: the primary extrusion mechanism is arranged in one side of the operating box below the feed inlet, and a conveying mechanism is arranged below one side of the primary extrusion mechanism and connected with the side wall of the operating box; The two squeeze rolls are symmetrically arranged at one side, far away from the primary squeezing mechanism, of the operation box in an up-down mode, the squeeze rolls at the lower side are abutted against the upper side of the partition plate, rotating shafts at the front side and the rear side of the squeeze rolls at the lower side are screwed on the side wall of the operation box through bearings, the rotating shafts at the rear side of the squeeze rolls are exposed out of the rear side wall of the operation box, and the squeeze rolls at the upper side are connected with the side wall of the operation box through an adjusting mechanism; The driving motor is fixed on the outer bottom wall of the operation box through a bracket, and an output shaft of the driving motor is connected with the extrusion roller at the lower side through a synchronous wheel transmission assembly; The linkage mechanism is arranged on the rear side wall of the operation box and is connected with the rotating shafts at the rear sides of the two squeeze rollers; Through the technical scheme, materials enter the operation box through the feed inlet, preliminary extrusion is carried out through the preliminary extrusion mechanism, raw materials after extrusion is accomplished drop to conveying mechanism on, carry through conveying mechanism, make the raw materials remove to between two upper and lower squeeze rolls, according to the degree of required extrusion, the position of the squeeze rolls of upside is adjusted through adjustment mechanism, start driving motor, driving motor drives the squeeze rolls of downside through synchronizing wheel drive assembly and rotates, the squeeze rolls of downside drive the squeeze rolls of upside through the link gear and rotate, thereby make two squeeze rolls extrude the material, discharge through the discharging pipe at last, the liquid of extrusion is then discharged through the drain pipe. As a further improvement of the invention, the two side walls of the baffle are respectively fixed with a guide plate, the other sides of the guide plates are respectively fixed on the inner bottom wall of the operation box after being inclined downwards, and one