GB953635A - Improvements in the machines for the production of papers, cardboards or other sheets - Google Patents

Improvements in the machines for the production of papers, cardboards or other sheets

Info

Publication number
GB953635A
GB953635A GB3517162A GB3517162A GB953635A GB 953635 A GB953635 A GB 953635A GB 3517162 A GB3517162 A GB 3517162A GB 3517162 A GB3517162 A GB 3517162A GB 953635 A GB953635 A GB 953635A
Authority
GB
United Kingdom
Prior art keywords
pulp
duct
ducts
pump
discharge orifice
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
GB3517162A
Inventor
Lejeune Pierre
Maillard Louis De
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.)
GRENOBLOISE ETUDE APPL
Neyrpic SA
Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
Original Assignee
GRENOBLOISE ETUDE APPL
Neyrpic SA
Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH
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 GRENOBLOISE ETUDE APPL, Neyrpic SA, Societe Grenobloise dEtudes et dApplications Hydrauliques SA SOGREAH filed Critical GRENOBLOISE ETUDE APPL
Publication of GB953635A publication Critical patent/GB953635A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/02—Head boxes of Fourdrinier machines
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/06—Regulating pulp flow

Landscapes

  • Paper (AREA)
  • Manufacturing And Processing Devices For Dough (AREA)

Abstract

953, 635. Regulating flow and consistency of paper pulp. ETABLISSEMENTS NEYRPIC (ATELIERS NEYRET-BEYLIER & PICCARDPICTET), and SOC. GRENOBLOISE D'ETUDES ET D'APPLICATIONS HYDRAULICS SOGREAH. Sept. 14, 1962 [Sept. 15, 1961; Aug. 9, 1962], No. 35171/62. Heading D2A. [Also in Division G3] In a pulp feeding circuit pulp is pumped in a closed circuit having.an inlet duct and a discharge orifice, the pulp which by-passes the discharge orifice being returned via an overflow unit, a condition of operation of which automatically controls the supply of pulp to the inlet duct. In Fig. 1 a pump 2 supplies pulp through ducts 3, 5 to a paper or cardboard-forming discharge orifice 9 and the increase in width from the beginning of duct 3, which is of circular section, to duct 5, which is of rectangular section, is taken care of by a spreader box 4 which may have one or two projections such as 15 to produce uniformity of flow across the width of duct 5. The pulp which passes discharge orifice 9 enters a duct 6 divided by vertical baffles to reduce turbulence and then overflows into a duct 7 leading to the inlet of pump 2. Changes in the level in duct 7, detected electrically at 27, serve to control a servomotor 25 adjusting the supply of pulp through an inlet duct 8 so as to compensate for varying rates of operation of the paper making machine and permit pump 2 to maintain a constant flow. The rate of flow through discharge orifice 9 may be controlled by air pressure or suction applied above the level of the pulp by a pump 20 and adjusted manually and automatically by valves 23 and 24 respectively, Figs. 2-8 (not shown) illustrate suitable shapes for the ducts, baffles and spreader box. The levels of pulp in ducts 6 and 7 may be substantially equal and well above the division between the ducts. In another arrangement the upper portion of the division between ducts 6, 7 is pivoted about a horizontal axis to permit adjustment of the rate of discharge from orifice 9 without the need for pump 20.
GB3517162A 1961-09-15 1962-09-14 Improvements in the machines for the production of papers, cardboards or other sheets Expired GB953635A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR4398A FR1307958A (en) 1961-09-15 1961-09-15 Improvements to machines for making paper, cardboard or other sheets
FR906562A FR82137E (en) 1961-09-15 1962-08-09 Improvements to machines for making paper, cardboard or other sheets

Publications (1)

Publication Number Publication Date
GB953635A true GB953635A (en) 1964-03-25

Family

ID=26197035

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3517162A Expired GB953635A (en) 1961-09-15 1962-09-14 Improvements in the machines for the production of papers, cardboards or other sheets

Country Status (5)

Country Link
CH (1) CH400754A (en)
DE (1) DE1293562B (en)
ES (1) ES280830A1 (en)
FR (2) FR1307958A (en)
GB (1) GB953635A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236876A (en) * 1989-10-12 1991-04-17 Bpb Industries Plc Control of the manufacture of plaster board
CN108193566A (en) * 2018-03-02 2018-06-22 佛山市必硕机电科技有限公司 Slurry tank and a kind of wet base former of paper matrix

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1250252B (en) * 1967-09-14 Escher Wyss GmbH, Ravensburg Distribution and delay device for the headbox of paper machines
SE412078B (en) * 1978-06-21 1980-02-18 Svenska Traeforskningsinst PROCEDURE FOR PREPARING A CONTINUOUS MATERIAL MATERIAL OF FIBROS PARTICLES AND DEVICE FOR IMPLEMENTATION OF THE PROCEDURE
DE2837566C2 (en) * 1978-08-29 1984-10-18 Neue Bruderhaus Maschinenfabrik GmbH, 7410 Reutlingen Device for forming a web on a wire from a fiber suspension

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2384912A (en) * 1943-05-08 1945-09-18 Bagley And Sewall Company Stock inlet
US2540301A (en) * 1945-07-30 1951-02-06 Black Clawson Co Papermaking machine and control therefor
US2609732A (en) * 1946-03-14 1952-09-09 Alton Box Board Co Cylinder papermaking machine
US2598852A (en) * 1946-07-24 1952-06-03 Black Clawson Co Feed regulator for paper machinery
US2781699A (en) * 1955-03-25 1957-02-19 Sandy Hill Iron & Brass Works Cylinder paper machine
US2781700A (en) * 1955-03-25 1957-02-19 Sandy Hill Iron & Brass Works Paper machine
US2934142A (en) * 1955-06-14 1960-04-26 Valmet Oy Method and apparatus for feeding substantially gas-free paper pulp into a paper making machine
US2934141A (en) * 1955-11-02 1960-04-26 Valmet Oy Apparatus for feeding paper pulp at a continuous rate into a paper making machine
US2876684A (en) * 1957-02-06 1959-03-10 Sandy Hill Iron & Brass Works Head box

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2236876A (en) * 1989-10-12 1991-04-17 Bpb Industries Plc Control of the manufacture of plaster board
CN108193566A (en) * 2018-03-02 2018-06-22 佛山市必硕机电科技有限公司 Slurry tank and a kind of wet base former of paper matrix
CN108193566B (en) * 2018-03-02 2024-04-12 广东必硕智能科技有限公司 Slurry tank and paper mould wet blank forming equipment

Also Published As

Publication number Publication date
ES280830A1 (en) 1963-01-16
CH400754A (en) 1965-10-15
FR1307958A (en) 1962-11-03
DE1293562B (en) 1969-04-24
FR82137E (en) 1963-12-27

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