CN100364736C - Industralized production and manufacture method for rice straw hollow flakeboard - Google Patents
Industralized production and manufacture method for rice straw hollow flakeboard Download PDFInfo
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- CN100364736C CN100364736C CNB2005100406158A CN200510040615A CN100364736C CN 100364736 C CN100364736 C CN 100364736C CN B2005100406158 A CNB2005100406158 A CN B2005100406158A CN 200510040615 A CN200510040615 A CN 200510040615A CN 100364736 C CN100364736 C CN 100364736C
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Abstract
The present invention relates to an industrialization method for producing and preparing a hollow straw shaving board, which comprises the steps that the raw material treating step is formed by that straw is cut into straw stalk units by a straw cutter; then, scrap leaves, mud and impurities are sieved and removed from the raw materials; the raw materials are pulverized by a pulverizer; powder dust in the scrap materials is removed; straw scraps are chemically treated, a urea solution is added to the straw scraps, and then, the straw scraps are dried; the glue mixing step is formed by that a urea-formaldehyde resin adhesive is adopted; when the glue is sized, a waterproof agent needs to be added to the glue, and the glue mixing step is completed in a circular type glue mixing machine; the water ratio of the raw materials mixed with the glue is from 8 to 13%; the extrusion process is formed by that the straw scraps mixed with the glue flow into a paving groove through a feeding hopper, the straw scraps are extruded by a punching head driven by a transmission mechanism, and are hot extruded by two hot boards, and the extrusion speed of the straw scraps can be controlled. The post-treatment process is formed by that the straw scraps are naturally cooled, and both surfaces of the hollow straw shaving board of which the edges are trimmed by an edge trimmer are respectively stuck with a single board. The present invention has the advantages that the urea-formaldehyde resin is adopted as the adhesive, and the performance of the hollow straw shaving board reaches an operational requirement. The density of the hollow straw shaving board which is not faced is from 0.6 to 0.7 g/cm<3>, and the strength is from 1 to 1.5MPa.
Description
Technical field
What the present invention relates to is a kind of industrial production method of rice straw hollow flakeboard, belongs to wood-based plate and makes the field.
Background technology
At present; because various countries are to the protection of the environment and the forest reserves; progressively the timber processing artificial boards is adopted in restriction; but society is continuing to increase the demand of wood-based plate; various countries all strengthen adopting crop stalk to do the research that wood-based plate is made raw material; but, influenced the application market of this product because employed isocyanate adhesive price is higher in wheat (rice) crushed straw aggregate plate suitability for industrialized production.The rice straw hollow flakeboard that this patent relates to, the employing Lauxite is an adhesive, and performance reaches instructions for use.
Summary of the invention
The objective of the invention is to the defective at above-mentioned existence, proposing a kind of employing Lauxite is adhesive, and performance reaches instructions for use, but the industrial production method of the rice straw hollow flakeboard of suitability for industrialized production.Technical solution of the present invention: processing step branch () the raw material processing of the suitability for industrialized production manufacture method of rice straw hollow flakeboard, (two) glue mixing, (three) extruding, (four) post-processed;
Described material treatment process step (one) comprises that a. cuts into straw with chaffcutter the stalk unit of 30-50mm, screen broken leaf, the sediment contamination of removing in the raw material through screening machine then, by the pulverizer fragmentation, screen with screening machine once more, remove the dust in the particle, and send to again thicker particle broken; B. with the crushed aggregates of straw chemical treatment, apply the urea liquid that accounts for gross weight 5-10%, adopt rotator type drying machine drying then, baking temperature 80-120 ℃, moisture content 3%-5%;
Described glue mixing processing step (two) is to adopt urea-formaldehyde resin adhesive, and resin added accounts for the 6-12% of over dry crushed aggregates of straw weight, will add the waterproofing agent of 1-2% during applying glue, finishes glue mixing in the ring type glue mixer, mixes the raw material moisture content 8-13% of glue;
Described extrusion process step (three) is that the glue mixing crushed aggregates of straw flows into the inherent transmission mechanism drive of pavement groove low punch extruding crushed aggregates of straw by two blocks of hot plates through loading hopper, make the cored slab that is solidified into continuous state after closely contacting between the crushed aggregates of straw, during hot pressing temperature 160-180 ℃, extrusion speed 550-650mm/min;
Described post-processed processing step (four) comprises cooling, cutting edge and veneer, and cooling is cooling naturally on transporter after continuous extruder comes out; Cutting edge is that with the cutting edge machine book size of product to be cut out be length 2440-3800mm; Width 1220-1400mm; Rice straw hollow flakeboard after the cutting edge needs two surfaces respectively to paste a veneer.
Insert the device of tubulature in the pavement groove in the extrusion process step (three), the diameter of pipe is the 1/2-1/3 of product thickness, is the rice straw hollow flakeboard of 25mm as producing thickness, and the diameter of pipe is 8-12mm; Producing thickness is the rice straw hollow flakeboard of 38mm, and the diameter of pipe is 12-19mm.
Advantage of the present invention: the employing Lauxite is an adhesive, and performance reaches instructions for use.The key technical indexes: the rice straw hollow flakeboard density of facing is not 0.6-0.7g/cm
3, intensity 1-1.5MPa.
The specific embodiment
Embodiment 1, and producing thickness is the rice straw hollow flakeboard of 38mm,
Material treatment process step (one) cuts into straw with chaffcutter (model ZCQ3) the stalk unit of 30mm, screen broken leaf, the sediment contamination of removing in the raw material through screening machine (model ZCQ) then, by the pulverizer fragmentation, use screening machine (model BF149C) screening once more, remove the dust in the particle, and send to again thicker particle broken; With the crushed aggregates of straw chemical treatment, apply 5% urea liquid after, adopt rotator type drying machine (model BG2327A) drying again, 80 ℃ of baking temperatures, moisture content 3%.
Glue mixing processing step (two) adopts urea-formaldehyde resin adhesive, resin added accounts for 6% of over dry crushed aggregates of straw weight, will add 1% waterproofing agent (model NLW-1) during applying glue, glue mixing is at ring type glue mixer (model NH-1)) in finish, mixed the raw material moisture content of glue and answered 8%;
Extrusion process step (three) glue mixing crushed aggregates of straw flows in the pavement groove through loading hopper, insert the device of tubulature in the groove, the diameter of pipe is 12mm, drive low punch extruding crushed aggregates of straw by two blocks of hot plates at transmission mechanism, make between the crushed aggregates of straw and closely be solidified into cored slab after the contact, temperature is 160 ℃ during hot pressing, extrusion speed 550mm/min;
Post-processed processing step (four): cooling is cooling naturally on transporter after continuous extruder comes out; Cutting edge is to be cut into length 2440mm with the cutting edge machine, width 1220mm; Veneer is that the rice straw hollow flakeboard after the cutting edge needs two surfaces respectively to paste a veneer.
Embodiment 2, and producing thickness is the rice straw hollow flakeboard of 38mm,
Material treatment process step (one) cuts into straw with chaffcutter (model ZCQ3) the stalk unit of 40mm, screen broken leaf, the sediment contamination of removing in the raw material through screening machine (model ZCQ) then, by the pulverizer fragmentation, use screening machine (model BF149C) screening once more, remove the dust in the particle, and send to again thicker particle broken; With the crushed aggregates of straw chemical treatment, apply 7.5% urea liquid after, adopt rotator type drying machine (model BG2327A) drying again, 100 ℃ of baking temperatures, moisture content 34%;
Glue mixing processing step (two) adopts urea-formaldehyde resin adhesive, resin added accounts for 8% of over dry crushed aggregates of straw weight, will add 1.5% waterproofing agent (model NLW-1) during applying glue, glue mixing is finished in ring type glue mixer (model NH-1), mixes the raw material moisture content of glue and answers 10%;
Extrusion process step (three) glue mixing crushed aggregates of straw flows in the pavement groove through loading hopper, inserts the device of tubulature in the groove, and the diameter of pipe is 19mm.Drive low punch extruding crushed aggregates of straw by two blocks of hot plates at transmission mechanism, make between the crushed aggregates of straw and closely be solidified into cored slab after the contact, temperature is 170 ℃ during hot pressing, extrusion speed 600mm/min;
Post-processed processing step (four) cooling is cooling naturally on transporter after continuous extruder comes out; Cutting edge is to be cut into length 3800mm with the cutting edge machine, width 1320mm; Rice straw hollow flakeboard after the cutting edge needs two surfaces respectively to paste a veneer.
Embodiment 3, and producing thickness is the rice straw hollow flakeboard of 25mm,
Material treatment process step (one) cuts into straw with chaffcutter (model ZCQ3) the stalk unit of 50mm, screen broken leaf, the sediment contamination of removing in the raw material through screening machine (model ZCQ) then, by the pulverizer fragmentation, use screening machine (model BF149C) screening once more, remove the dust in the particle, and send to again thicker particle broken; After crushed aggregates of straw chemical treatment (applying 10% urea liquid), adopt rotator type drying machine (model BG2327A) drying again, 120 ℃ of baking temperatures, moisture content 5%;
Glue mixing processing step (two) adopts urea-formaldehyde resin adhesive, resin added accounts for 12% of over dry crushed aggregates of straw weight, will add 2% waterproofing agent (model NLW-1) during applying glue, glue mixing is finished in ring type glue mixer (model NH-1), mixes the raw material moisture content of glue and answers 13%;
Extrusion process step (three) glue mixing crushed aggregates of straw flows in the pavement groove through loading hopper, inserts the device of tubulature in the groove, and the diameter of pipe is 8mm; , drive low punch extruding crushed aggregates of straw by two blocks of hot plates at transmission mechanism, make between the crushed aggregates of straw and closely be solidified into cored slab after the contact, temperature is 180 ℃ during hot pressing, extrusion speed 650mm/min;
Post-processed processing step (four) cooling is cooling naturally on transporter after continuous extruder comes out; Cutting edge is to be cut into length 3800mm with the cutting edge machine, width 1400mm; Rice straw hollow flakeboard after the cutting edge needs two surfaces respectively to paste a veneer.
Claims (1)
1. the industrial production method of rice straw hollow flakeboard is characterized in that the processing step of this method is divided into: the processing of (one) raw material, (two) glue mixing, (three) extruding, (four) post-processed;
Described material treatment process step (one) comprises that a. cuts into straw with chaffcutter the stalk unit of 30-50mm, screen broken leaf, the sediment contamination of removing in the raw material through screening machine then, by the pulverizer fragmentation, screen with screening machine once more, remove the dust in the particle, and send to again thicker particle broken; B. with the crushed aggregates of straw chemical treatment, apply the urea liquid that accounts for gross weight 5-10%, adopt rotator type drying machine drying then, baking temperature 80-120 ℃, moisture content 3%-5%;
Described glue mixing processing step (two) is to adopt urea-formaldehyde resin adhesive, and resin added accounts for the 6-12% of over dry crushed aggregates of straw weight, will add the waterproofing agent of 1-2% during applying glue, finishes glue mixing in the ring type glue mixer, mixes the raw material moisture content 8-13% of glue;
Described extrusion process step (three) is that the glue mixing crushed aggregates of straw flows in the pavement groove through loading hopper, insert the device of tubulature in the pavement groove, the diameter of pipe is the 1/2-1/3 of rice straw hollow flakeboard thickness, drive low punch extruding crushed aggregates of straw by two blocks of hot plates at transmission mechanism, make the cored slab that is solidified into continuous state after closely contacting between the crushed aggregates of straw, during hot pressing temperature 160-180 ℃, extrusion speed 550-650mm/min;
Described post-processed processing step (four) comprises cooling, cutting edge and veneer, and cooling is cooling naturally on transporter after continuous extruder comes out; Cutting edge is that with the cutting edge machine book size of product to be cut out be length 2440-3800mm; Width 1220-1400mm; Rice straw hollow flakeboard after the cutting edge needs two surfaces respectively to paste a veneer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100406158A CN100364736C (en) | 2005-06-20 | 2005-06-20 | Industralized production and manufacture method for rice straw hollow flakeboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100406158A CN100364736C (en) | 2005-06-20 | 2005-06-20 | Industralized production and manufacture method for rice straw hollow flakeboard |
Publications (2)
| Publication Number | Publication Date |
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| CN1709669A CN1709669A (en) | 2005-12-21 |
| CN100364736C true CN100364736C (en) | 2008-01-30 |
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| CNB2005100406158A Expired - Fee Related CN100364736C (en) | 2005-06-20 | 2005-06-20 | Industralized production and manufacture method for rice straw hollow flakeboard |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101342723B (en) * | 2008-02-28 | 2010-06-23 | 张培义 | Method for manufacturing sunflower artificial board of straw |
| CN104626329B (en) * | 2013-11-13 | 2019-06-14 | 四川中科板业有限公司 | A kind of no aldehyde particieboard, production method and purposes |
| CN104985667A (en) * | 2015-06-25 | 2015-10-21 | 大连金州重型机器集团有限公司 | Extrusion forming method for man-made straw panel |
| CN107498683A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green rice husk, straw stalk sheet production method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043655A (en) * | 1989-12-12 | 1990-07-11 | 四川省开县温泉工艺厂 | Particle and fiber cored slab and manufacture method thereof |
| CN1077487C (en) * | 1999-02-12 | 2002-01-09 | 王汉智 | Method for making plate using farm-crop straw and husk as raw material |
| CN1091019C (en) * | 1999-01-22 | 2002-09-18 | 南京林业大学 | Method for producing wheat straw flakeboard |
| JP2003311720A (en) * | 2002-04-22 | 2003-11-05 | Nippon Polyurethane Ind Co Ltd | Method for manufacture of hot-press molded board |
| CN1128046C (en) * | 2001-12-11 | 2003-11-19 | 南京林业大学 | Process for preparing middle-density rice straw board |
| CN1569420A (en) * | 2004-05-11 | 2005-01-26 | 南京林业大学 | Manufacturing method for packing filling pillow made from crop straw |
| CN1203969C (en) * | 2003-06-12 | 2005-06-01 | 上海康拜环保科技有限公司 | Method for making formaldehyde-free high-strength artificial plate |
| CN1623746A (en) * | 2004-12-13 | 2005-06-08 | 东南大学 | Compostte artificial board and its preparation method |
-
2005
- 2005-06-20 CN CNB2005100406158A patent/CN100364736C/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1043655A (en) * | 1989-12-12 | 1990-07-11 | 四川省开县温泉工艺厂 | Particle and fiber cored slab and manufacture method thereof |
| CN1091019C (en) * | 1999-01-22 | 2002-09-18 | 南京林业大学 | Method for producing wheat straw flakeboard |
| CN1077487C (en) * | 1999-02-12 | 2002-01-09 | 王汉智 | Method for making plate using farm-crop straw and husk as raw material |
| CN1128046C (en) * | 2001-12-11 | 2003-11-19 | 南京林业大学 | Process for preparing middle-density rice straw board |
| JP2003311720A (en) * | 2002-04-22 | 2003-11-05 | Nippon Polyurethane Ind Co Ltd | Method for manufacture of hot-press molded board |
| CN1203969C (en) * | 2003-06-12 | 2005-06-01 | 上海康拜环保科技有限公司 | Method for making formaldehyde-free high-strength artificial plate |
| CN1569420A (en) * | 2004-05-11 | 2005-01-26 | 南京林业大学 | Manufacturing method for packing filling pillow made from crop straw |
| CN1623746A (en) * | 2004-12-13 | 2005-06-08 | 东南大学 | Compostte artificial board and its preparation method |
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| CN1709669A (en) | 2005-12-21 |
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Granted publication date: 20080130 Termination date: 20100620 |