GB572895A - Improved production of cellulose pulp from wood, straw and other fibrous materials - Google Patents

Improved production of cellulose pulp from wood, straw and other fibrous materials

Info

Publication number
GB572895A
GB572895A GB75543A GB75543A GB572895A GB 572895 A GB572895 A GB 572895A GB 75543 A GB75543 A GB 75543A GB 75543 A GB75543 A GB 75543A GB 572895 A GB572895 A GB 572895A
Authority
GB
United Kingdom
Prior art keywords
water
caustic soda
fibrous material
wood
disintegrator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB75543A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ROBERT STANLEY CURRY
Original Assignee
ROBERT STANLEY CURRY
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ROBERT STANLEY CURRY filed Critical ROBERT STANLEY CURRY
Priority to GB75543A priority Critical patent/GB572895A/en
Publication of GB572895A publication Critical patent/GB572895A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/02—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft
    • B02C13/06—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor
    • B02C13/09—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft with beaters rigidly connected to the rotor and throwing the material against an anvil or impact plate

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Paper (AREA)

Abstract

Pulp for paper, strawboard, papier-mach<\>ae and like products, is obtained from wood, straw, or other fibrous materials, by continuously feeding the fibrous material, with water, into and through a rotary disintegrating machine in which the fibrous material and the water are thrown at a sufficiently high speed against the walls of the machine to break up <PICT:0572895/IV/1> the fibrous material by percussion, without the cellulose fibres being damaged or unduly shortened. The treated material as it becomes sufficiently reduced is passed out of the machine with the water through a screen or screens. The fibrous material may be softened by soaking in hot water or in a caustic soda solution or other softening liquid before being introduced into the disintegrator. The material may be passed more than once through the disintegrator. When sufficiently reduced, it may be discharged on to a filter of wire gauze to drain off water and sludge. The pulp may be boiled in a solution of caustic soda to remove lignin. As shown, water under pressure is supplied to the beater chamber through jet manifolds 1, 2. The material to be disintegrated is fed through the hopper 12. Beater arms 14 within the beater chamber are rotated at a peripheral speed of about 8,000 to 20,000 feet per minute according to the nature of the material being handled. The peripheral wall of the upper part of the chamber may be sawtoothed and the borders of the vertical walls near the periphery may be corrugated. The disintegrated fibrous material passes through a screen 13. When wood or other tough material is to be treated, it is preferably passed through a disintegrator in the dry state before it is led into the preliminary caustic soda softening bath. The strength of caustic soda in this bath may be 1.5-10 per cent. After the disintegration treatment, the cellulosic material may be treated with a boiling solution of 5 per cent caustic soda.
GB75543A 1943-01-15 1943-01-15 Improved production of cellulose pulp from wood, straw and other fibrous materials Expired GB572895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB75543A GB572895A (en) 1943-01-15 1943-01-15 Improved production of cellulose pulp from wood, straw and other fibrous materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB75543A GB572895A (en) 1943-01-15 1943-01-15 Improved production of cellulose pulp from wood, straw and other fibrous materials

Publications (1)

Publication Number Publication Date
GB572895A true GB572895A (en) 1945-10-29

Family

ID=9709958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB75543A Expired GB572895A (en) 1943-01-15 1943-01-15 Improved production of cellulose pulp from wood, straw and other fibrous materials

Country Status (1)

Country Link
GB (1) GB572895A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022088B (en) * 1952-12-19 1958-01-02 Elbert Clyde Lathrop Method for breaking down annual, vegetable fibers, in particular straw od.
CN105251576A (en) * 2015-10-29 2016-01-20 广西三零一机械有限公司 Forage pulverizer
CN115387149A (en) * 2022-08-25 2022-11-25 浙江创豪新材料有限公司 Transfer paper and manufacturing method thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1022088B (en) * 1952-12-19 1958-01-02 Elbert Clyde Lathrop Method for breaking down annual, vegetable fibers, in particular straw od.
CN105251576A (en) * 2015-10-29 2016-01-20 广西三零一机械有限公司 Forage pulverizer
CN105251576B (en) * 2015-10-29 2018-09-28 黄宗瑞 Crusher for straw
CN115387149A (en) * 2022-08-25 2022-11-25 浙江创豪新材料有限公司 Transfer paper and manufacturing method thereof
CN115387149B (en) * 2022-08-25 2023-07-14 浙江创豪新材料有限公司 Transfer paper and manufacturing method thereof

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