GB8923034D0 - Control system and method for the manufacture of plaster board - Google Patents

Control system and method for the manufacture of plaster board

Info

Publication number
GB8923034D0
GB8923034D0 GB8923034A GB8923034A GB8923034D0 GB 8923034 D0 GB8923034 D0 GB 8923034D0 GB 8923034 A GB8923034 A GB 8923034A GB 8923034 A GB8923034 A GB 8923034A GB 8923034 D0 GB8923034 D0 GB 8923034D0
Authority
GB
United Kingdom
Prior art keywords
awat
raw materials
adjusted
set point
point value
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.)
Withdrawn
Application number
GB8923034A
Other versions
GB2236876A (en
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.)
BPB Ltd
Original Assignee
BPB Industries PLC
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 BPB Industries PLC filed Critical BPB Industries PLC
Priority to GB8923034A priority Critical patent/GB2236876A/en
Publication of GB8923034D0 publication Critical patent/GB8923034D0/en
Priority to EP19900310878 priority patent/EP0422833A3/en
Publication of GB2236876A publication Critical patent/GB2236876A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B5/00—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping
    • B28B5/02—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type
    • B28B5/026—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length
    • B28B5/027—Producing shaped articles from the material in moulds or on moulding surfaces, carried or formed by, in or on conveyors irrespective of the manner of shaping on conveyors of the endless-belt or chain type the shaped articles being of indefinite length the moulding surfaces being of the indefinite length type, e.g. belts, and being continuously fed
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
    • B28B17/0063—Control arrangements
    • B28B17/0081—Process control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B19/00—Machines or methods for applying the material to surfaces to form a permanent layer thereon
    • B28B19/0092—Machines or methods for applying the material to surfaces to form a permanent layer thereon to webs, sheets or the like, e.g. of paper, cardboard

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Manufacturing & Machinery (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Press-Shaping Or Shaping Using Conveyers (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Producing Shaped Articles From Materials (AREA)

Abstract

To control the manufacture of plasterboard the supervisor enters required board parameters and production rate into a central processor. The processor senses the ratio of liquid raw materials to solid raw materials (AWAT) in a mixer and compares AWAT to a calculated setpoint value (SWAT). The set point value is adjusted in accordance with the difference between AWAT and SWAT. The height of a slurry dam behind an extruder on the boardline is then sensed and compared with a set point value (SDAM). If the sensed value (ADAM) differs from the set point value (SDAM) the setting belt speed (ABEL) is adjusted. The adjusted belt speed is then compared to the desired production rate (SBEL) and the raw materials feed rates varied to compensate for the difference.
GB8923034A 1989-10-12 1989-10-12 Control of the manufacture of plaster board Withdrawn GB2236876A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB8923034A GB2236876A (en) 1989-10-12 1989-10-12 Control of the manufacture of plaster board
EP19900310878 EP0422833A3 (en) 1989-10-12 1990-10-04 Control system and method for the manufacture of plaster board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8923034A GB2236876A (en) 1989-10-12 1989-10-12 Control of the manufacture of plaster board

Publications (2)

Publication Number Publication Date
GB8923034D0 true GB8923034D0 (en) 1989-11-29
GB2236876A GB2236876A (en) 1991-04-17

Family

ID=10664484

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8923034A Withdrawn GB2236876A (en) 1989-10-12 1989-10-12 Control of the manufacture of plaster board

Country Status (2)

Country Link
EP (1) EP0422833A3 (en)
GB (1) GB2236876A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3829125A1 (en) * 1988-08-27 1990-03-01 Bayer Ag METHOD FOR THE PRODUCTION OF CHROME ACID
HU215374B (en) * 1992-10-10 1998-12-28 Helmut Wedi Process for producing composite boards
US9983574B2 (en) * 2013-09-30 2018-05-29 United States Gypsum Company Systems and methods for controlling a conveyor system during product changeovers
CN108724435B (en) * 2017-04-24 2019-09-13 北新集团建材股份有限公司 A kind of control method of plasterboard formation system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1307958A (en) * 1961-09-15 1962-11-03 Neyrpic Ets Improvements to machines for making paper, cardboard or other sheets
US3532576A (en) * 1966-06-20 1970-10-06 Nat Gypsum Co Apparatus for making gypsum board
JPS4834807B1 (en) * 1967-03-28 1973-10-24
SE371460B (en) * 1967-04-24 1974-11-18 Asea Ab
US4038531A (en) * 1976-05-18 1977-07-26 Weyerhaeuser Company Process control apparatus for controlling a particleboard manufacturing system
LU79390A1 (en) * 1978-04-06 1979-11-07 Metallurgie Hoboken CONTINUOUS CASTING PROCESS OF A METAL AND APPARATUS FOR ITS IMPLEMENTATION
FR2429867A1 (en) * 1978-06-30 1980-01-25 Centre Tech Ind Papier CONTROLLING THE OPERATION OF THE HEADBOX OF A PAPER MACHINE
AT357118B (en) * 1978-10-27 1980-06-25 Andritz Ag Maschf DEVICE FOR CONTROLLING A DRAINAGE MACHINE
DE3347720C2 (en) * 1983-12-31 1986-09-11 Gebr. Knauf Westdeutsche Gipswerke, 8715 Iphofen Plant for the production of building panels, in particular plasterboard

Also Published As

Publication number Publication date
GB2236876A (en) 1991-04-17
EP0422833A2 (en) 1991-04-17
EP0422833A3 (en) 1991-12-04

Similar Documents

Publication Publication Date Title
GB1505512A (en) Production of synthetic plastics films and sheets
GB8605004D0 (en) Extrusion control
AU6854090A (en) Thermoplastic polyester series resin foamed material and production process thereof
ES8700219A1 (en) Process for preparing directly compressible granular mannitol.
AU7647691A (en) Method and apparatus for stretching dough
ES8603290A1 (en) Apparatus for controlling polymerisation reactors.
FI991172A (en) Process control system and process for automated continuous chewing gum production
JPS6451134A (en) Continuous fluidized bed granulator
ES8605359A1 (en) Apparatus and method for continuously producing a strip of dough having substantially constant transverse dimensions and flow rate.
GB8923034D0 (en) Control system and method for the manufacture of plaster board
JPS6465126A (en) Production of polycarbonate
CA2187091A1 (en) Structure forming method, apparatus and resulting product
AU1140988A (en) Crosslinked porous skinless particles of pvc resin and process for producing same
EP0203026A3 (en) Rock crusher including improved feeder control
EP0256716A3 (en) Process for producing an amorphous alpha-olefin polymer
IE42714L (en) Varistor
ES8703330A1 (en) Extruder mixer.
Wortberg Computer Holds Thickness Constant--Automatic Extrusion Equipment Makes Plastic Pipes With Computer Support
FR2311653A1 (en) Long single screw adiabatic extruder of high efficiency - suitable for several grades of thermoplastics
SU1597865A1 (en) Method of automatic control of process of continuous production of enzymic lysate
DE3268759D1 (en) Method and apparatus for regulating a pellet press
SU648248A1 (en) Method of automatic control of lime milk preparation process
SU1748877A1 (en) Method for control of foam separation process and device for its realization
YU45223B (en) Process for obtaining uniform particles distribution from distributing device with several exits
EP0159718A3 (en) Speed control and regulation device for continuous strip sheet material

Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)