CN214459167U

CN214459167U - Pulp cutter of refiner

Info

Publication number: CN214459167U
Application number: CN202120196723.9U
Authority: CN
Inventors: 何模祥; 苏宁东; 司维久
Original assignee: Hefei Yinshan Cotton & Linen Co ltd
Current assignee: Hefei Yinshan Cotton & Linen Co ltd
Priority date: 2021-01-25
Filing date: 2021-01-25
Publication date: 2021-10-22
Anticipated expiration: 2031-01-25

Abstract

The utility model provides a pulp cutter of a refiner, which comprises a rough pulp cutter component, a semi-pulp cutter component and a refined pulp cutter component, wherein the rough pulp cutter component comprises a rough pulp cutter fixed cutter and a rough pulp cutter rotary cutter, and pulp is processed by the rough pulp cutter component, the semi-pulp cutter component and the refined pulp cutter component in sequence, wherein the cutter height forms a gradient of 35mm → 28mm → 20 mm; the width of the cutter forms a gradient of 35mm → 20mm → 18 mm; the blade thickness forms a gradient of 10mm → 6mm → 6 mm. The improved combination production of the rough sizing cutter, the semi-sizing cutter and the fine sizing cutter obviously promotes the consistency of the fiber length, the improved sizing enters desanding, the efficiency of removing impurities from the sizing is improved, the control of pulp-making water is more stable, the gram weight is also obviously improved, the energy consumption of steam is indirectly reduced, and the production cost is reduced.

Description

Pulp cutter of refiner

Technical Field

The utility model belongs to the technical field of the refiner, especially, relate to a thick liquid sword of refiner.

Background

The universal refiner adopts the mutual combination of the coarse pulp cutter and the half pulp cutter to achieve the further cutting-off function of the pulped fiber pulp, and due to the diversity and complexity of fiber properties, how to select the refiner cutter type to cut off and devillicate cotton fibers in a targeted manner is a relatively difficult subject.

Compared with other wood pulp fibers, straw pulp fibers, bamboo pulp fibers and hemp fibers, the cotton fibers have higher water content of cooked pulp and stronger fiber flexibility, and form flocculation and agglomeration among the fibers because the fibers are longer, and the fibers are unevenly distributed and have larger difference after being cut off in the beating process of a beater, so that the quality of subsequent pulp making and paper making is influenced, particularly the folding resistance index and the breaking length index of a cotton pulp board are greatly influenced, the quality index is higher or lower, and the quality control is unstable.

The reasonable selection and application of the refiner blade type have great significance for improving the quality and the yield of the cotton pulp board production, and meanwhile, the reasonable selection and application of the refiner blade type also have great help for controlling the cost of electricity consumption in the production cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the cotton fiber is boiling the back because beating machine cuts off the fibre length inconsistency, the fibre distributes unevenly, the reunion and the flocculation phenomenon that causes to thick liquids, and the quality index that leads to is resistant to be rolled over and the fracture length is unstable.

In order to realize the purpose, the utility model adopts the technical scheme that:

the utility model provides a refiner pulp cutter, including thick liquid knife tackle spare, half thick liquid knife tackle spare and refined thick liquid knife tackle spare, wherein thick liquid knife tackle spare includes thick liquid knife stationary knife and thick liquid knife revolving cutter, half thick liquid knife tackle spare includes half thick liquid knife stationary knife and half thick liquid knife revolving cutter, refined thick liquid knife tackle spare includes refined thick liquid knife stationary knife and refined thick liquid knife revolving cutter, thick liquids are in proper order through thick liquid knife tackle spare, half thick liquid knife tackle spare and refined thick liquid knife tackle spare processing, wherein thick liquid knife tackle spare, the gradual grow of sword strip angle in the half thick liquid knife tackle spare, or the sword strip angle grow gradually in half thick liquid knife tackle spare and the refined thick liquid knife tackle spare.

The angle of the cutter bar in the rough pulp cutter component is 4 degrees; the angle of the cutter bar in the half-size cutter assembly is 8 degrees; the angle of the cutter bar in the fine sizing cutter component is 8 degrees.

The knife-shaped racks of the rough sizing knife fixed knife and the rough sizing knife rotary knife are 35mm in height, 35mm in width, 10mm in thickness and 60 degrees in taper.

The cutter types of the fixed cutter and the rotary cutter of the half-size cutter are 28mm in height, 20mm in width and 6mm in thickness, and the taper is 60 degrees.

The blade types of the fixed blade and the rotary blade of the fine sizing blade are 20mm in height, 18mm in width and 6mm in thickness, and the taper is 60 degrees.

The improved cutter type combination is produced by adopting a combination mode of a rough sizing cutter, a semi-sizing cutter and a fine sizing cutter.

The design is as follows: the height of the knife forms a gradient of 35mm → 28mm → 20 mm; the width of the cutter forms a gradient of 35mm → 20mm → 18 mm; the blade thickness forms a gradient of 10mm → 6mm → 6 mm.

The utility model has the advantages that: the improved rough pulp cutter, the improved semi-pulp cutter and the improved fine pulp cutter are produced in a combined mode, the consistency of the fiber length is remarkably improved, the fiber occupation ratio is 50% when the thickness is 3.0-3.2mm before improvement, 65% after improvement and 15% after improvement. Improved detection data: the folding-resistant batch standard of half pulp is improved by 100 times, the fracture length is improved by 200m, the fine pulp time is reduced from the original 100 minutes to 80 minutes, 600kw is calculated according to 200kw of each pulp and 3 machines, 14 groups of pulp can be produced every day, the time is reduced by 280 minutes, the electricity is saved by more than 1000 ℃, the electricity charge is 600 yuan, and the electricity charge is saved by more than 20 ten thousand yuan every year. The improved slurry enters desanding, the impurity removal efficiency of the slurry is improved, the pulp-making water is controlled more stably, the gram weight is obviously improved, the energy consumption of steam is indirectly reduced, and the production cost is reduced.

Drawings

FIG. 1 is an expanded view of the blank surface of a half-paddle knife.

Detailed Description

The present invention will be further described with reference to the following examples.

A refiner pulp cutter as shown in fig. 1, a refiner pulp cutter, comprising a coarse pulp cutter assembly, a half pulp cutter assembly and a refined pulp cutter assembly, wherein the coarse pulp cutter assembly comprises a coarse pulp cutter fixed cutter and a coarse pulp cutter rotary cutter, the half pulp cutter assembly comprises a half pulp cutter fixed cutter and a half pulp cutter rotary cutter, the refined pulp cutter assembly comprises a refined pulp cutter fixed cutter and a refined pulp cutter rotary cutter, pulp is processed by the coarse pulp cutter assembly, the half pulp cutter assembly and the refined pulp cutter assembly in sequence, a rack of the coarse pulp cutter type is 35mm high, 35mm wide, 35mm thick and 10mm thick, one set is the fixed cutter, the other set is the rotary cutter, the taper is 60 degrees, and the angle of a cutter strip is 4 degrees. The half-paddle cutter is 28mm in height, 20mm in width and 6mm in thickness, one group is a fixed cutter, the other group is a rotary cutter, the taper is 60 degrees, and the angle of a cutter strip is 8 degrees. The fine sizing cutter is 20mm in height, 18mm in width and 6mm in thickness, one group is a fixed cutter, the other group is a rotary cutter, the taper is 60 degrees, and the angle of the cutter strip is 8 degrees. In the embodiment, the rotor cutters of the rough sizing cutter, the semi-sizing cutter and the fine sizing cutter are 14 groups, each group comprises 6 blades, the stator cutters of the rough sizing cutter, the semi-sizing cutter and the fine sizing cutter are 16 groups, and each group comprises 6 blades.

The blade type is designed to take account of the passing capacity of the pulp, and simultaneously, the rough pulp blade is used for carrying out preliminary fiber separation and cutting off on the pulp in the fine pulp serial combination, so that the problem of difficult pulp passing caused by the conglobation of the pulp is solved, then the cutting-off function of the pulp at the first stage is carried out, and only fine processing can be carried out due to the high and wide blade type.

In the second stage, because the knife shape is relatively narrowed and lowered, the pulp processed by the first coarse pulp knife is further cut off and broomed and devillicate by the improved half pulp knife, at the moment, the pulp fed is relatively less to be agglomerated and flocculated, the fiber is cut off and shortened, the improvement of the knife shape enables the pulp passing gap to be reduced, the pulp feeding pressure intensity to be relatively increased, but the angle adjustment of the knife teeth is 8 degrees from 4 degrees, the pumping capacity of the knife strip is increased, the fiber can easily pass through the teeth of the teeth and enter between the knife surfaces, and the rotating knife and the fixed knife move relatively to form shearing force and strengthen the cutting effect on the fiber.

And the third segment is removed, the knife shape is further narrowed, the blade is thinned, the fiber is processed twice, the blade angle is 8 degrees, the passing capacity is improved, the shearing capacity of the blade with the diameter of 6mm is greatly enhanced, the devillicating and brooming capacities of the fiber are improved, the fiber length after the fine sizing is relatively consistent, the binding force between the shorter fibers is enhanced due to devillicating and brooming effects of the slurry after the fine sizing, the fracture and folding resistance mark are improved, and the subsequent separation of impurities from the degritted slurry and the water gram weight uniformity of the copied meal are greatly facilitated.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only illustrative of the principles of the present invention, and that simple modifications and substitutions by those skilled in the art are within the scope of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A pulp cutter of a refiner is characterized in that: including thick liquid knife tackle spare, half thick liquid knife tackle spare and smart thick liquid knife tackle spare, wherein thick liquid knife tackle spare includes thick liquid sword stationary knife and thick liquid sword rotary cutter, and half thick liquid knife tackle spare includes half thick liquid sword stationary knife and half thick liquid sword rotary cutter, and smart thick liquid knife tackle spare includes smart thick liquid sword stationary knife and smart thick liquid sword rotary cutter, and thick liquids are in proper order through thick liquid knife tackle spare, half thick liquid knife tackle spare and smart thick liquid knife tackle spare processing, and wherein the sword strip angle grow gradually in thick liquid knife tackle spare, half thick liquid knife tackle spare, or the sword strip angle grow gradually in half thick liquid knife tackle spare and the smart thick liquid knife tackle spare.

2. A refiner blade according to claim 1, wherein: the angle of the cutter bar in the rough pulp cutter component is 4 degrees; the angle of the cutter bar in the half-size cutter assembly is 8 degrees; the angle of the cutter bar in the fine sizing cutter component is 8 degrees.

3. A refiner blade according to claim 1, wherein: the knife-shaped racks of the rough sizing knife fixed knife and the rough sizing knife rotary knife are 35mm in height, 35mm in width, 10mm in thickness and 60 degrees in taper.

4. A refiner blade according to claim 1, wherein: the cutter types of the fixed cutter and the rotary cutter of the half-size cutter are 28mm in height, 20mm in width and 6mm in thickness, and the taper is 60 degrees.

5. A refiner blade according to claim 1, wherein: the blade types of the fixed blade and the rotary blade of the fine sizing blade are 20mm in height, 18mm in width and 6mm in thickness, and the taper is 60 degrees.