US3277814A - Sieve plate for manufacture of fiber board and similar board products - Google Patents
Sieve plate for manufacture of fiber board and similar board products Download PDFInfo
- Publication number
- US3277814A US3277814A US405131A US40513164A US3277814A US 3277814 A US3277814 A US 3277814A US 405131 A US405131 A US 405131A US 40513164 A US40513164 A US 40513164A US 3277814 A US3277814 A US 3277814A
- Authority
- US
- United States
- Prior art keywords
- slots
- plate
- board
- sieve plate
- manufacture
- 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 - Lifetime
Links
- 238000004519 manufacturing process Methods 0.000 title description 3
- 239000011094 fiberboard Substances 0.000 title description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
Images
Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/04—Pressing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27N—MANUFACTURE BY DRY PROCESSES OF ARTICLES, WITH OR WITHOUT ORGANIC BINDING AGENTS, MADE FROM PARTICLES OR FIBRES CONSISTING OF WOOD OR OTHER LIGNOCELLULOSIC OR LIKE ORGANIC MATERIAL
- B27N3/00—Manufacture of substantially flat articles, e.g. boards, from particles or fibres
- B27N3/08—Moulding or pressing
- B27N3/10—Moulding of mats
- B27N3/14—Distributing or orienting the particles or fibres
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/04—Flat screens
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
- D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
- D21D5/02—Straining or screening the pulp
- D21D5/16—Cylinders and plates for screens
Definitions
- this invention relates to sieve plates for manufacture of primarily hardboard, but also other board products such as fiber board, particle board and similar products.
- wet sheets i.e. sheets or layers of the water containing fiber pulp of which the 'boards are to be made.
- the sieve plates with their wet sheets are then introduced between press platens in a press to which heat is supplied, the water being removed partly through squeezing and partly through evaporation.
- sieve plates which are provided with elongated slots disposed in mutually parallel rows through which the water and/ or the steam are drained off.
- the slots may in turn on the rear side of the sieve plate communicate with substantially transversal grooves extending to the border edge of the sieve plate.
- the removal of the water and the steam during the press operation may instead be effected by means of a wire screen or the like means disposed below the sieve plate.
- One main object of the invention is to eliminate said drawback inherent in sieve plates of the type under consideration.
- the slots in one row are disposed to overlap the slots in an adjacent row so that the sieve plate in every section transverse to the longitudinal direction of the slots is interrupted by a plurality of slots.
- the sieve plate is divided up into zones possessing a local capacity of movement in the plane of the plate. A thermal extension can thus occur in each zone without necessarily being propagated through the entire plate for which reason concentrations of tension cannot be produced at any place of the plate surface.
- the sieve plates are usually rectangular and therefore it is particularly suitable to provide the slots extending perpendicularly to one longitudinal edge of the plate.
- FIG. 1 is a partial top view of a sieve plate embodying the invention and FIG. 2 is a sectional view following line II-II of FIG. 1.
- a sieve plate 4 is provided with elongated slots 5 which are mutually parallel and arranged in rows displaced relatively to one another in such a manner that the unbroken plate portions S between the slots 5 in one row are overlapped by the slots 5 of adjacent rows.
- the length of the slots 5 is at least twice and most suitably three times as great as the longitudinal dimension of the plate portions S i.e. the spacing between two slots in the same row. This results in that the sieve plate in each section AA taken over the whole plate surface is many times interrupted by slots whereever this section may be assumed to be located.
- the slots 5 may on the rear side of the sieve plate be in communication with grooves 6 extending transversely to the longitudinal direction of the slots. These grooves facilitate the drainage of the water escaping in the state of liquid or steam through the slots 5.
- the slots may have a portion 7 of constant width directly adjacent the operative side of the plates, said portion thereupon merging into a portion 8 of a width increasing towards the rear side.
- a sieve plate for the manufacture of fiber board and similar board products by pressing of wet sheets positioned on the plate between heated press platens in a press said sieve plate having front and rear faces and being formed with spaced rows of spaced slots, the slots in one row being parallel to those in adjacent rows, the slots in one row being located with their ends overlapping the slots in an adjacent row, the walls of each slot diverging from the front face of the plate toward the rear face thereof so that each slot is larger at its rear end than at its front end, the plate having open drainage grooves formed directly in it in its rear face, said grooves extending transversely of the slots and each groove transversely crossing the slots in one row only and located between the ends of the slots in two adjacent rows, each of the grooves being open at the bottom at the surface of the rear face of the plate.
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Dry Formation Of Fiberboard And The Like (AREA)
- Paper (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE11547/63A SE315479B (de) | 1963-10-21 | 1963-10-21 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3277814A true US3277814A (en) | 1966-10-11 |
Family
ID=20294161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US405131A Expired - Lifetime US3277814A (en) | 1963-10-21 | 1964-10-20 | Sieve plate for manufacture of fiber board and similar board products |
Country Status (10)
Country | Link |
---|---|
US (1) | US3277814A (de) |
AT (1) | AT263522B (de) |
BE (1) | BE654633A (de) |
CH (1) | CH433949A (de) |
DE (1) | DE1436931A1 (de) |
FI (1) | FI45839C (de) |
GB (1) | GB1085204A (de) |
NL (1) | NL6412231A (de) |
NO (1) | NO120867B (de) |
SE (1) | SE315479B (de) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434411A (en) * | 1964-12-11 | 1969-03-25 | Weyerhaeuser Co | Vented cauls |
US4293414A (en) * | 1978-05-04 | 1981-10-06 | Ecodyne Corporation | Slotted sheet filter element |
WO1982002345A1 (en) * | 1981-01-05 | 1982-07-22 | & Haley Malin | V-shaped filter |
US4580961A (en) * | 1982-02-22 | 1986-04-08 | Mejeriselskabet Danmark A.M.B.A. | Cheese mould |
US4745058A (en) * | 1984-05-10 | 1988-05-17 | Townsley Philip M | Method for producing cellulosic fibers and microcrystalline cellulose |
EP0275967A3 (en) * | 1987-01-19 | 1989-02-08 | A. Ahlstrom Corporation | Method and apparatus for separating knots |
US5611269A (en) * | 1994-02-19 | 1997-03-18 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Continuously operating press for the production of particle boards, fiber boards or similar wood boards and plastic boards |
US20080223773A1 (en) * | 2005-10-28 | 2008-09-18 | Joseph Dendel | Rotary Fan Press |
US20100012573A1 (en) * | 2008-07-14 | 2010-01-21 | Dendel Joseph W | Rotary fan press |
US7895943B2 (en) | 2004-08-09 | 2011-03-01 | Prime Solution, Inc. | Rotary fan press |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1247941A (en) * | 1917-02-14 | 1917-11-27 | Samuel J Ellis | Compression-box. |
US1540325A (en) * | 1919-05-05 | 1925-06-02 | Harrington And King Perforatin | Perforated sheet |
US1553310A (en) * | 1919-12-31 | 1925-09-15 | Samuel J Ellis | Compression box |
US1631585A (en) * | 1927-06-07 | Screen plate | ||
US2854896A (en) * | 1952-11-19 | 1958-10-07 | Rexolit Holzstoffplatten Ges M | Process for producing shaped articles, particularly plates |
US2866556A (en) * | 1955-07-14 | 1958-12-30 | Loyola B Hinz | Drip board device for meats |
-
1963
- 1963-10-21 SE SE11547/63A patent/SE315479B/xx unknown
-
1964
- 1964-10-13 NO NO155128A patent/NO120867B/no unknown
- 1964-10-14 DE DE19641436931 patent/DE1436931A1/de active Pending
- 1964-10-19 FI FI642197A patent/FI45839C/fi active
- 1964-10-19 AT AT887164A patent/AT263522B/de active
- 1964-10-20 CH CH1356264A patent/CH433949A/de unknown
- 1964-10-20 US US405131A patent/US3277814A/en not_active Expired - Lifetime
- 1964-10-21 NL NL6412231A patent/NL6412231A/xx unknown
- 1964-10-21 GB GB42899/64A patent/GB1085204A/en not_active Expired
- 1964-10-21 BE BE654633D patent/BE654633A/xx unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1631585A (en) * | 1927-06-07 | Screen plate | ||
US1247941A (en) * | 1917-02-14 | 1917-11-27 | Samuel J Ellis | Compression-box. |
US1540325A (en) * | 1919-05-05 | 1925-06-02 | Harrington And King Perforatin | Perforated sheet |
US1553310A (en) * | 1919-12-31 | 1925-09-15 | Samuel J Ellis | Compression box |
US2854896A (en) * | 1952-11-19 | 1958-10-07 | Rexolit Holzstoffplatten Ges M | Process for producing shaped articles, particularly plates |
US2866556A (en) * | 1955-07-14 | 1958-12-30 | Loyola B Hinz | Drip board device for meats |
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3434411A (en) * | 1964-12-11 | 1969-03-25 | Weyerhaeuser Co | Vented cauls |
US4293414A (en) * | 1978-05-04 | 1981-10-06 | Ecodyne Corporation | Slotted sheet filter element |
WO1982002345A1 (en) * | 1981-01-05 | 1982-07-22 | & Haley Malin | V-shaped filter |
US4580961A (en) * | 1982-02-22 | 1986-04-08 | Mejeriselskabet Danmark A.M.B.A. | Cheese mould |
US4745058A (en) * | 1984-05-10 | 1988-05-17 | Townsley Philip M | Method for producing cellulosic fibers and microcrystalline cellulose |
EP0275967A3 (en) * | 1987-01-19 | 1989-02-08 | A. Ahlstrom Corporation | Method and apparatus for separating knots |
US5611269A (en) * | 1994-02-19 | 1997-03-18 | Maschinenfabrik J. Dieffenbacher Gmbh & Co. | Continuously operating press for the production of particle boards, fiber boards or similar wood boards and plastic boards |
CN1046657C (zh) * | 1994-02-19 | 1999-11-24 | J·迪芬巴赫机器制造有限公司 | 用于制作木屑板、纤维板等用的连续工作压机的热压板 |
US20110219961A1 (en) * | 2004-08-09 | 2011-09-15 | Joseph Dendel | Rotary fan press |
US8091474B2 (en) | 2004-08-09 | 2012-01-10 | Prime Solution, Inc. | Rotary fan press |
US7895943B2 (en) | 2004-08-09 | 2011-03-01 | Prime Solution, Inc. | Rotary fan press |
US7946225B2 (en) | 2004-08-09 | 2011-05-24 | Prime Solution, Inc. | Rotary fan press |
US20080223773A1 (en) * | 2005-10-28 | 2008-09-18 | Joseph Dendel | Rotary Fan Press |
US7975854B2 (en) | 2005-10-28 | 2011-07-12 | Prime Solution, Inc. | Rotary fan press |
US20100012573A1 (en) * | 2008-07-14 | 2010-01-21 | Dendel Joseph W | Rotary fan press |
US8662315B2 (en) | 2008-07-14 | 2014-03-04 | Prime Solution, Inc. | Rotary fan press |
Also Published As
Publication number | Publication date |
---|---|
AT263522B (de) | 1968-07-25 |
DE1436931A1 (de) | 1969-03-13 |
FI45839C (fi) | 1972-10-10 |
NL6412231A (de) | 1965-04-22 |
FI45839B (de) | 1972-06-30 |
NO120867B (de) | 1970-12-14 |
CH433949A (de) | 1967-04-15 |
BE654633A (de) | 1965-04-21 |
GB1085204A (en) | 1967-09-27 |
SE315479B (de) | 1969-09-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3277814A (en) | Sieve plate for manufacture of fiber board and similar board products | |
US3436888A (en) | Parquet floorboard | |
NO164490C (no) | Tekstil, saerlig for anvendele paa en papirmaskin, samt fremgangsmaate ved fremstilling derav. | |
US1235027A (en) | Means for preventing lodgment and matting of fibrous material on conveyers. | |
US1384515A (en) | Paper towel | |
US3655507A (en) | Press nip of a paper machine composed of a suction roll and a pressure roll | |
FI842064A0 (fi) | Taetnings-anordning vid cylindertork. | |
US1995057A (en) | Indented paper | |
US2381608A (en) | Dehydration tray | |
CA1105699A (en) | Arrangement in drying plant for preferably air-borne web | |
MX156356A (es) | Tela mejorada a dos capas for trama para ser utilizada en meqzinas para fabricar papel | |
US2332886A (en) | Apparatus for drying sheets | |
SU961567A3 (ru) | Устройство дл обезвоживани полотен из волокнистых материалов | |
US2073410A (en) | Absorbent package or pad | |
US3151953A (en) | Belt conveying arrangement in paper drying machine | |
US1884366A (en) | Pulp product and its manufacture | |
US3470063A (en) | Papermaking machine | |
US4050863A (en) | Apparatus for the hot-pressing of composite boards made from lignocellulosic material | |
US1499779A (en) | Platen for stereotype drying tables | |
US1987232A (en) | Washboard | |
US1803926A (en) | Press roll | |
US2269236A (en) | Method and device for controlling the heat supply in cellulose driers | |
US904355A (en) | Washboard. | |
US2917245A (en) | Pulping apparatus and method | |
PL52691B1 (de) |