CN1843719A - Method for manufacturing tile by rice/wheat straw - Google Patents
Method for manufacturing tile by rice/wheat straw Download PDFInfo
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- CN1843719A CN1843719A CN 200610039819 CN200610039819A CN1843719A CN 1843719 A CN1843719 A CN 1843719A CN 200610039819 CN200610039819 CN 200610039819 CN 200610039819 A CN200610039819 A CN 200610039819A CN 1843719 A CN1843719 A CN 1843719A
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Abstract
The invention relates to a method for producing rice/wheat straw tile, which comprises: the raw material treatment; the gluing step; the spreading and demoulding step; the thermal compress step; and after-treatment step. The invention can be used to replace traditional tile, with lower weight and saved land resource. The used straw can be decomposed; therefore, the detached building will not be waste. And it has lower cost, better social and economic benefits, while the water adsorption rate of straw tile can reach 21% which is lower than asbestos cement tile, and its anti-bend strength is significantly higher than the support strengths of sinter tile and asbestos cement tile; and the longitudinal anti-bend strength is reduced to 1400N, and the transverse one is reduced to 2200N.
Description
Technical field
What the present invention relates to is a kind of manufacture method of rice/tile by rice/wheat straw, belongs to the wood-based plate manufacturing
Technical field.
Background technology
Traditional tile is to adopt vitrified bond to form, and it needs a large amount of land resource.Not only waste resource with the vitrified bond traditional tile, and harmful gas discharging in the traditional tile sintering process, contaminated environment.Traditional tile Heavy Weight with vitrified bond.Behind building demolition, can become construction waste, can not degrade.
Summary of the invention
The objective of the invention is to propose a kind of method of making rice/tile by rice/wheat straw with agricultural crop straw as raw material.Rice/tile by rice/wheat straw can be used as a kind of new substitute of traditional tile, and land resource that can saves valuable is environment friendly and pollution-free.
Technical solution of the present invention: its technology comprises:
One, material treatment process;
Two, glue-applying technique;
Three, mat formation and releasing process;
Four, heat pressing process;
Five, post-processed technology.
Described material treatment process one, step comprises:
A, crushed aggregates of straw preparation: in this process, adopt a homemade combined type special equipment at first straw to be cut into the stalk unit of 30-50mm, remove impurity such as broken leaf in the raw material, silt particle then through screening, again with the special-purpose crusher machine of pulverizing, obtain the aldehyde less thin straw board particle of higher yield and better form, screening is once more removed meticulous dust in the particle, and is sent to thicker particle broken again at last.
B. dry: adopt the rotator type drying machine, the compressed straw slab particle is dried to 6%-12%, baking temperature is got 80-150 ℃, and adjust according to the first moisture content of crushed aggregates of straw and the whole moisture content of requirement drying time.
C. sorting: in order to guarantee product fine and smooth surface and uniform internal structure are arranged, must make crushed aggregates of straw form homogeneous.Adopt roto-siofter to carry out sorting in this project, sieve goes the crushed aggregates of straw after the coarse fodder to enter feed bin.
Described glue-applying technique two, step comprises: the employing isocyanates is an adhesive, and resin added is 5-7%, will add a certain amount of waterproofing agent during applying glue.Glue mixing is finished in the box-like glue mixer of ring type-cylinder group.Even in order to ensure applying glue, the consumption proportioning that should guarantee adhesive and particle is a constant constant, and the raw material of mixing glue should have enough moisture content.
Describedly mat formation and releasing process three, the steps include:, must control the uniformity of slab density in the straw tile mould well, when mating formation, need adopt the demoulding to handle because rice/tile by rice/wheat straw particle density is lower.
Described heat pressing process four, its step are 140-180 ℃ of temperature during hot pressing in the straw tile mould, and hot pressing time is 0.5-0.8min/mm, and the hot pressing maximum pressure is 2.5-3.5MPa.
Described post-processed technology five, its step are that the straw tile of finishing hot pressing carries out post-processed, comprise cooling and cutting edge.Cooling purpose is that the temperature of straw tile is reduced, and eliminates the plate internal stress, prevents the straw tile distortion.Cutting edge is in order to obtain the straw tile specification of standard.
Advantage of the present invention:
Raw material is pulverized crusher machine with special use, can obtain the aldehyde less thin straw board particle of higher yield and better form.Glue mixing is finished in the box-like glue mixer of ring type-cylinder group, guarantees that resin added reduces with even.The demoulding is handled and to have been adopted combination demoulding treatment technology: steel slab surface is with disposable releasing agent or sanding dusts; The semipermanent releasing agent of top board and lower bolster surface.Utilize the pressing process compacting straw tile of stalk plate to can be used as a kind of new substitute of traditional tile, and it having in light weightly, is a kind of light material.Land resource that can saves valuable.Is environmental protection with agricultural crop straw as the rice/tile by rice/wheat straw of raw material manufacturing, and it is free from environmental pollution.Straw tile as with stalk as raw material, and stalk is a kind of material that is easy to degrade.So can not become construction waste behind the building demolition, be easy to degraded.Less investment, cost is low, has fundamentally solved the outlet of rice/wheat straw stalk.It not only has good economic benefit, and has the important social benefit.The water absorption rate of straw tile is 21% to the maximum, less than the water absorption rate of asbestos cement ripple watt.The rupture strength of straw tile is far longer than the bearing strength of sintered tiles and asbestos cement tile, and the vertical rupture strength of straw tile has dropped to 1400N, and laterally rupture strength has dropped to 2200N.
The specific embodiment
Embodiment 1, the technology branch of the production method of rice/tile by rice/wheat straw:
One, material treatment process: step is divided the stalk unit that straw is cut into 30mm, through screening for the first time, and impurity such as the broken leaf in the removal raw material, silt particle; With pulverizer (model ZCQ3) fragmentation,, remove meticulous dust in the particle through programmed screening; Adopt rotator type drying machine (model BG2327), baking temperature is got 80 ℃, moisture content 6%; With screening machine (model BF1626C) screening, sieve goes the crushed aggregates of straw after the coarse fodder to enter feed bin;
Two, glue-applying technique: it is adhesive that step is divided with isocyanates, and resin added is 5% of an over dry straw weight; Add 1% the waterproofing agent (model NLW-1) account for over dry straw weight during applying glue; In the box-like glue mixer of ring type-cylinder group, finish glue mixing, mixed the moisture content 8% of the raw material of glue;
Three, mat formation and releasing process, crushed straw aggregate is mated formation in the straw tile mould, steel slab surface is a separation layer with disposable releasing agent or with sanding powder.
Four, heat pressing process, 140 ℃ of temperature during hot pressing in the straw tile mould, hot pressing time is 0.5min/mm, the hot pressing maximum pressure is 2.5Mpa;
Five, post-processed technology, step comprise cooling and cutting edge.Cooling purpose is that the temperature of straw tile is reduced, and eliminates the plate internal stress, prevents the straw tile distortion.Cutting edge is in order to obtain the straw tile specification of standard.
Embodiment 2, the technology branch of the production method of rice/tile by rice/wheat straw:
One, material treatment process: step is divided the stalk unit that straw is cut into 50mm, through screening for the first time, and impurity such as the broken leaf in the removal raw material, silt particle; With pulverizer (model ZCQ3) fragmentation,, remove meticulous dust in the particle through programmed screening; Adopt rotator type drying machine (model BG2327), baking temperature is got 150 ℃, moisture content 6%; With screening machine (model BF1626C) screening, sieve goes the crushed aggregates of straw after the coarse fodder to enter feed bin;
Two, glue-applying technique: it is adhesive that step is divided with isocyanates, and resin added is 7% of an over dry straw weight; Add 1% the waterproofing agent (model NLW-1) account for over dry straw weight during applying glue; In the box-like glue mixer of ring type-cylinder group, finish glue mixing, mixed the moisture content 8% of the raw material of glue;
Three, mat formation and releasing process, crushed straw aggregate is mated formation in the straw tile mould, steel slab surface is a separation layer with disposable releasing agent or with sanding powder.
Four, heat pressing process, 180 ℃ of temperature during hot pressing in the straw tile mould, hot pressing time is 0.5min/mm, the hot pressing maximum pressure is 3.5Mpa;
Five, post-processed technology, step comprise cooling and cutting edge.Cooling purpose is that the temperature of straw tile is reduced, and eliminates the plate internal stress, prevents the straw tile distortion.Cutting edge is in order to obtain the straw tile specification of standard.
Straw tile and asbestos cement ripple watt, with the performance of sintered tiles such as down: asbestos cement ripple watt standard GB 9772-88 water absorption rate (soaking 24 hours) high-class product is 26%, and the water absorption rate of straw tile is 21% to the maximum, less than the water absorption rate of asbestos cement ripple watt.Straw tile has reached the requirement of water absorption rate.
Compare with asbestos cement tile standard GB 9772-88 with sintered tiles industry standard JC709-1998, the rupture strength of straw tile is far longer than the bearing strength of sintered tiles and asbestos cement tile, the minimum rupture strength of asbestos cement tile is 590N, and the sintered tiles failing load is 1020N.The vertical rupture strength of straw tile has dropped to 1400N, and laterally rupture strength has dropped to 2200N.
Claims (6)
1, the production method of rice/tile by rice/wheat straw is characterized in that technology comprises:
One, material treatment process;
Two, glue-applying technique;
Three, mat formation and releasing process;
Four, heat pressing process;
Five, post-processed technology.
2, the production method of rice/tile by rice/wheat straw according to claim 1 is characterized in that described material treatment process one, and step comprises:
A, crushed aggregates of straw preparation: the stalk unit that straw is cut into 30-50mm with the straw cutting machine, remove impurity such as broken leaf in the raw material, silt particle then through screening, again with the special-purpose crusher machine of pulverizing, obtain the aldehyde less thin straw board particle of higher yield and better form, screening once more at last, remove meticulous dust in the particle, and send to again thicker particle broken;
B. dry: adopt the rotator type drying machine, the compressed straw slab particle is dried to 6%-12%, baking temperature is got 80-150 ℃, the first moisture content 6% of crushed aggregates of straw;
C. sorting: carry out sorting with roto-siofter, sieve goes the crushed aggregates of straw after the coarse fodder to enter feed bin.
3, the production method of rice/tile by rice/wheat straw according to claim 1, it is characterized in that described glue-applying technique two, step comprises: the employing isocyanates is an adhesive, resin added is 5-7%, to add 1% waterproofing agent during applying glue, in the box-like glue mixer of ring type-cylinder group, finish glue mixing, mixed the moisture content 8% of the raw material of glue.
4, the production method of rice/tile by rice/wheat straw according to claim 1 is characterized in that describedly mating formation and releasing process three, the steps include: to control well the uniformity of slab density in the straw tile mould, adopts the demoulding to handle when mating formation.
5, the production method of rice/tile by rice/wheat straw according to claim 1, it is characterized in that described heat pressing process four, its step is interior hot pressing temperature 140-180 ℃ of a straw tile mould, and hot pressing time is 0.5-0.8min/mm, and the hot pressing maximum pressure is 2.5-3.5MPa.
6, the production method of rice/tile by rice/wheat straw according to claim 1 is characterized in that described post-processed technology five, obtains the straw tile specification of standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039819 CN1843719A (en) | 2006-04-24 | 2006-04-24 | Method for manufacturing tile by rice/wheat straw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610039819 CN1843719A (en) | 2006-04-24 | 2006-04-24 | Method for manufacturing tile by rice/wheat straw |
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| Publication Number | Publication Date |
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| CN1843719A true CN1843719A (en) | 2006-10-11 |
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| CN 200610039819 Pending CN1843719A (en) | 2006-04-24 | 2006-04-24 | Method for manufacturing tile by rice/wheat straw |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568098A (en) * | 2012-08-01 | 2014-02-12 | 长沙创远环保科技有限公司 | Manufacturing method for aldehyde-free crop straw decorative plates |
| CN104230258A (en) * | 2014-08-25 | 2014-12-24 | 沈礼群 | Straw heat-insulating colored tile and preparation method thereof |
| CN104262983A (en) * | 2014-09-30 | 2015-01-07 | 句容金猴机械研究所有限公司 | Straw tile and preparation method thereof |
| CN107498685A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw stalk sheet production method |
| CN107498684A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw, Wheat Straw sheet production method |
| CN107813396A (en) * | 2017-08-10 | 2018-03-20 | 徐杰 | A kind of fire-proof and damp-proof wheat（Rice）Stalk board |
-
2006
- 2006-04-24 CN CN 200610039819 patent/CN1843719A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103568098A (en) * | 2012-08-01 | 2014-02-12 | 长沙创远环保科技有限公司 | Manufacturing method for aldehyde-free crop straw decorative plates |
| CN104230258A (en) * | 2014-08-25 | 2014-12-24 | 沈礼群 | Straw heat-insulating colored tile and preparation method thereof |
| CN104262983A (en) * | 2014-09-30 | 2015-01-07 | 句容金猴机械研究所有限公司 | Straw tile and preparation method thereof |
| CN107498685A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw stalk sheet production method |
| CN107498684A (en) * | 2017-06-16 | 2017-12-22 | 河南安朝板材科技有限公司 | Green straw, Wheat Straw sheet production method |
| CN107813396A (en) * | 2017-08-10 | 2018-03-20 | 徐杰 | A kind of fire-proof and damp-proof wheat（Rice）Stalk board |
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