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New technology for improving tobacco stalk pulping quality

A new technology, the technology of tobacco stems, applied in the field of new pulping technology, can solve the problems of high content of fine fibers and short pulping fibers, and achieve the effect of improving tensile strength, reducing dosage, and reasonable method

Active Publication Date: 2013-04-03
HUBEI CHINA TOBACCO IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above patents mainly involve the soaking pretreatment process of tobacco stems and the conventional defibrillation process of tobacco stems. The entire defibration and follow-up treatment is beating by conventional disc grinding, and no other defibration or pretreatment technology is involved. It can improve the sensory quality of reconstituted tobacco leaves to a certain extent, but there are defects such as short pulping fibers and high content of fine fibers

Method used

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  • New technology for improving tobacco stalk pulping quality
  • New technology for improving tobacco stalk pulping quality
  • New technology for improving tobacco stalk pulping quality

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] In the production process of reconstituted tobacco by papermaking, the raw tobacco stems are washed first, and the washed tobacco stem materials are sent to the extraction tank by the belt conveyor, and the extracted tobacco stem materials are separated by a centrifugal separator for solid-liquid separation Then use TSD-CMP pretreatment. The diameter of the twin screw used in this example is Φ80mm, the screw speed is 300rpm, the compression ratio of the front section is 3:1, and the rear section is not compressed; the blade distance is 16mm, 10mm and 8mm. Set of spiral knives, in which the knife edge distance of the first squeezing, tearing and kneading zone is 16mm, the second squeezing, tearing and kneading zone is 10mm, and the third is 8mm. The entire TSD-CMP pretreatment process is cycled twice, most of the fibers are separated, and the fiber length is kept high, some of the fibers have been fibrillated, and the beating degree of the pulp is 25°SR. The pretreated to...

Embodiment 2

[0056] In the production process of reconstituted tobacco leaves by papermaking, after solid-liquid separation of the extracted tobacco stem material by a centrifugal separator, the tobacco stem material is pretreated with TSD-CMP. The screw diameter is Φ80mm and the screw speed is adjusted to 200rpm. The front section has a compression ratio of 3:1, and the rear section has no compression; three sets of spiral blades are selected as 12mm, 10mm and 8mm blade distance. Among them, the first section of squeezing and tearing and kneading zone is 12mm, and the second section is squeezing and tearing. The knife edge distance is 10mm, and the knife edge distance in the third stage of squeezing, tearing and kneading zone is 8mm; the entire TSD-CMP pretreatment process is cycled twice, most of the fibers are separated, and the fiber length is kept high, and some of the fibers have been thinned. The beating degree of pulping is 20°SR. The pre-treated tobacco stem pulp is pulverized by a...

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Abstract

The invention discloses a new technology for improving tobacco stalk pulping quality, belonging to the technical field of paper-making reconstituted tobacco production. The new technology is implemented according to the following sequences: [1] washing tobacco stalks; [2] performing extraction; [3] performing shoving; [4] pretreating the tobacco stalks by using a multifunctional pulping machine of a double-screw conjugate blade mill, wherein the rotation speed of each screw rod is 100-450rpm; the compression ratio of the front section of each screw rod is 3:1; the rear section of each screw rod is not in compression; and the concentration of outlet tobacco stalk pulp of the tobacco stalks pretreated by the multifunctional pulping machine of the double-screw conjugate blade mill for two times is 35+ / -2%; and [5] milling the pulp by using a millstone mill. The new technology for improving the tobacco stalk pulping quality is rational in method, simple to operate and remarkable in effect; in addition, the pulping quality of the tobacco stalks can be improved remarkably; the tensile strength, the flexibility and the appearance quality of reconstituted tobaccos are improved; the unit energy consumption for subsequent pulping is decreased; and meanwhile, the dosage of additional wood fiber during the production process of the reconstituted tobaccos can be lowered and the sensory quality of the reconstituted tobaccos is improved.

Description

Technical field [0001] The invention belongs to the technical field of reconstituted tobacco production by papermaking, and specifically relates to a new pulping process in which tobacco stem raw materials are pretreated by a novel twin-screw conjugate blade mill multifunctional pulping machine for tobacco stem raw materials in the process of reconstituted tobacco production. Background technique [0002] In the prior art, in the production process of reconstituted tobacco by the papermaking method, tobacco stems are used as tobacco raw materials, and the proportion thereof can account for 40%-80% of the total. The process of leaching, beating, and mixing tobacco stems will change the physical structure and chemical structure, and ultimately affect the physical and mechanical properties and sensory quality of paper-making tobacco sheets. The existing paper-making method of reconstituted tobacco production process usually adopts a high-consistency refiner or a low-consistency refi...

Claims

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Application Information

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IPC IPC(8): A24B3/14
Inventor 孙德平王凤兰毛耀谢益民姚元军王磊刘志昌王亮
Owner HUBEI CHINA TOBACCO IND
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