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Pulp mobility improving method during medium and high concentration pulping

A high-concentration and fluidity technology, applied in the preparation of tobacco, application, tobacco and other directions, can solve the problems of increasing the power and rotation speed of the conveying equipment, the difficulty of high-concentration slurry, etc., and achieves easy dispersion process, simple process and convenient operation. Effect

Inactive Publication Date: 2015-09-09
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, for such a high flow rate, the only way is to increase the power and rotation speed of the conveying equipment, which is difficult to achieve with the current slurry conveying device
Therefore, it is very difficult and not advisable to fluidize the high-concentration slurry into a turbulent state simply by increasing the flow rate.

Method used

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  • Pulp mobility improving method during medium and high concentration pulping
  • Pulp mobility improving method during medium and high concentration pulping
  • Pulp mobility improving method during medium and high concentration pulping

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] (1) Remove the screw shaft from the trough.

[0026] (2) Clean the original screw on the screw shaft close to 1 / 5 of the exit end of the screw conveyor, and polish the shaft of the screw removal part.

[0027] (3) Add a nail rake to the shaft where the screw is removed, and the height of the nail rake is consistent with the original screw. The method of adding nails is to install evenly at a distance of 3 cm, 7 cm, or 10 cm along the original spiral direction, such as figure 2 Shown.

[0028] (4) Install the screw and harrow shaft modified according to the method (3) in the trough, and operate according to the original method.

[0029] Observation on the spot: the screw conveyor modified by the above method has a uniform discharge, which shows that the current is stable within the standard value ±6 ampere when the slurry entering the high-concentration mill is beaten.

Embodiment 2

[0031] (1) Remove the screw shaft from the trough.

[0032] (2) Clean up the original screw on the screw shaft close to the 1 / 4 part of the outlet end of the screw conveyor, and polish the shaft of the screw removed part.

[0033] (3) Add a nail rake to the shaft where the screw is removed, and the height of the nail rake is consistent with the original screw. The method of adding rakes is to install evenly spaced 4 or 10 cm apart on the shaft where the spiral part is removed. The rakes between two adjacent rows are kept consistent, such as image 3 Shown.

[0034] (4) Install the screw and harrow shaft modified according to the method (3) in the trough, and operate according to the original method.

[0035] Observed on site: the screw conveyor modified by the above method has a uniform discharge, which is reflected in the fact that the current is stable within the standard value of ±4 amperes when entering the high-concentration mill for pulping.

Embodiment 3

[0037] (1) Remove the screw shaft from the trough.

[0038] (2) Clean up the original screw on the screw shaft close to 1 / 3 of the exit end of the screw conveyor, and polish the shaft of the screw removed part.

[0039] (3) Add a nail rake to the shaft where the screw is removed, and the height of the nail rake is consistent with the original screw. The method of adding rakes is to add evenly spaced 3 or 5 cm in 6 directions on the shaft where the spiral part is removed, and the rakes between two adjacent rows are staggered.

[0040] (4) Install the screw and harrow shaft modified according to the method (3) in the trough, and operate according to the original method.

[0041] Observed on site: the screw conveyor modified by the above method has a uniform discharge, which is reflected in the fact that the current is stable within the standard value of ±4 amperes when entering the high-concentration mill for pulping.

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Abstract

The invention discloses a pulp mobility improving method during medium and high concentration pulping. The method comprises the steps of (1) dismounting a spiral shaft of a spiral conveyor; (2) removing part of spirals on the spiral shaft; (3) adding rakes; (4) performing mounting again. The method can be achieved by transforming prior equipment, that is, the spirals close to the outlet end of the spiral conveyor are replaced by the rakes of the same heights, and accordingly, the problem of caking due to high concentration of the outlet pulp can be well solved, and the method is convenient to operate, simple in process and low in cost. After the transformed spiral shaft with part of rakes is put into use, the caked pulp due to high concentration is scattered into uniform materials after passing through the outlet rakes, the materials can enter the next pulping process uniformly, the scattering process is easy to control, and the method is applicable to industrial production.

Description

Technical field [0001] The invention belongs to the technical field of papermaking reconstituted tobacco production, and in particular relates to a method for improving the fluidity of slurry during medium and high-concentration pulping. Background technique [0002] Paper-making reconstituted tobacco is the process and reorganization of tobacco raw materials such as tobacco stems, tobacco dust, and low-grade tobacco leaves remaining in the production process of cigarette enterprises to produce a kind of renewable raw material that is similar to natural tobacco raw materials that meets the requirements of cigarette formulas. Reconstituted tobacco leaves According to a certain ratio, it is blended with natural tobacco leaves to make cigarettes. Its main significance is to improve the utilization rate of tobacco raw materials, make full use of leftovers from the cigarette production process, reduce the tar content of cigarettes, and improve cigarette grades. The production of reco...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A24B3/14
CPCA24B3/14
Inventor 孙德平刘良才唐向兵吴志强刘平
Owner HUBEI CHINA TOBACCO IND