CN102152369B - Production process of tea stem particle board - Google Patents
Production process of tea stem particle board Download PDFInfo
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- CN102152369B CN102152369B CN 201110007926 CN201110007926A CN102152369B CN 102152369 B CN102152369 B CN 102152369B CN 201110007926 CN201110007926 CN 201110007926 CN 201110007926 A CN201110007926 A CN 201110007926A CN 102152369 B CN102152369 B CN 102152369B
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- tea
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- tea stalk
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- tea stem
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Abstract
The invention relates to a tea stem particle board and a production process thereof. The production process comprises the following steps of: 1) drying tea stems, and crushing the tea stems into tea stem particles; 2) mixing the crushed tea stem particles with an adhesive uniformly to form a mixture; and 3) paving the mixture which is obtained in the step 2) to make the mixture formed, and pressing to form the particle board. By the process, residuals of tea leaves can be utilized efficiently, timber resources are saved effectively, and the particle board which is manufactured by raw materials of the tea stems can be applied to the fields of building renovation, interior decoration, furniture manufacture, transportation and the like.
Description
Technical field
The present invention is specifically related to a kind of tea stem particle board and production technology thereof.
Background technology
Along with expanding economy, in the production process of wood-based plate, people are increasing to the demand of flakeboard, and the enterprise that produces this sheet material also increases year by year.But along with various countries strengthen gradually to the protection of environment and the forest reserves, cause the used wood raw material of flakeboard day by day to lack.
The raising of realizing along with health of people consciousness, indoor environment consciousness and quality of life simultaneously, the contaminated air that volatile organic contaminant in the wood-based plate causes, the problem that impairs one's health more and more is subject to people's attention, in China, after " coal smoke type ", " photochemical fog type " polluted, the modern was just falling in take " room air pollution " the 3rd pollution period for indicating.This volatile organic contaminant has brought degradation various diseases under chronic respiratory disease, allergic rhinitis, the immunologic function to the mankind.
Tea stalk is the leaf stalk of tealeaves, contains multiple aroma substance, but because people's tea drinking habit, usually tea stalk is abandoned need not, cause a large amount of wastes.
Summary of the invention
In order to overcome above problem, the invention provides a kind of tea stem particle board and production technology thereof, this technique can efficiently be utilized the Tea Processing residue, effectively saved timber resources, and the flakeboard by utilizing the tea stalk raw material to make can be applied to the fields such as construction and decoration, interior decoration, Furniture manufacture, communications and transportation.
The present invention implements by the following technical programs:
A kind of production craft step of tea stem particle board is:
1) tea stalk is dry, pulverize, form the tea stalk particle;
2) the tea stalk particle after will pulverizing evenly mixes with adhesive, forms mixture;
3) with step 2) moulding of mating formation of the mixture that obtains, and be pressed into described flakeboard.
The baking temperature of tea stalk is 80~130 ℃ in the described step 1), and dried tea stalk moisture control is 3~10%.
The grain graininess of tea stalk particle is 20~120 orders in the described step 1).
Described step 2) adhesive is Lauxite, melmac, phenolic resins, isocyanate resin, modified urea-formaldehyde resin, modified cyanurotriamide resin, phenol-formaldehyde resin modified, any one in the modified isocyanate resin.
Described step 2) adhesive concentration is 45~65%, and its resin added is 5~12% of tea stalk weight.
Described tea stem particle board is comprised of tea stalk and adhesive.
Advantage of the present invention is:
The present invention can take full advantage of Tea Processing residue tea stalk, generate without other additional pollutants, effective to save timber resource, product structure rationally, function admirable, the tea stem particle board burst size of methanal can reach the requirement of E1 level simultaneously, be the novel environment friendly artifical board material, also have more the delicate fragrance of tea, it is healthy to be conducive to people, can be widely used in the fields such as construction and decoration, interior decoration, Furniture manufacture, communications and transportation, market prospects are very wide.
Description of drawings
Fig. 1 is the single layer structure of flakeboard, as long as the tea stalk particle is evenly mixed spreading;
Fig. 2 is the grading structure of flakeboard, and wherein 1 is the thin tea stalk particle in top layer, and 2 is the thick tea stalk particle of sandwich layer, and 3 is the thin tea stalk particle in top layer, gradually changes between layer by layer.
Fig. 3 is the sandwich construction of flakeboard, and wherein 1 is the thin tea stalk particle in top layer, and 2 is the thick tea stalk particle of sandwich layer, and 3 is the thin tea stalk particle in top layer, layer by layer between boundary more obvious.
The specific embodiment
The technique of tea stem particle board production is:
Tea stalk: Tea Processing residue;
Dry: can adopt conduction oil, steam, flue gas etc. is thermal source, and the heated drying air of carrying out producing after the heat exchange is medium, adjusts medium temperature and is 80~130 ℃, makes dried tea stalk moisture control 3~10%;
Sorting: tea stalk particle particle is controlled between 20~120 orders, and excessive tea stalk particle uses after broken again, and meticulous tea stalk particle is abandoned;
Glue mixing: can use in Lauxite, melmac, phenolic resins, isocyanate resin, modified urea-formaldehyde resin, modified cyanurotriamide resin, phenol-formaldehyde resin modified, the modified isocyanate resin any one; Adhesive concentration is 45~65%, resin added is 5~12% of tea stalk weight;
The moulding of mating formation: can be by the requirement of tea stem particle board equipment structure design, according to its sheet material low-density, middle density, highdensity needs, the even shakedown of tea stalk particle after the applying glue is removed into single layer structure, grading structure or the multilayer particle board base of different-thickness specification.
Precompressed: make the tea stem particle board base have certain packing, be convenient to slab conveying, cutting etc., the unit pressure of slab precompressed is 1.0~1.5MPa, squeeze time 10~30min; Compression ratio is generally 60%~80%;
Hot pressing: 90~160 ℃ of unit pressure 1.5~3.5MPa, heating platen temperature, hot pressing time 0.25~0.45min/mm, the step-down process that puts on the tea stem particle board base avoids producing the mass defects such as the layering of plank and bubbling;
Block: block by tea stem particle board product design specification (PDS) or user's request, this operation be arranged at after the continuous hot-press operation or the multi hot press operation before;
Cooling: tea stem particle board is placed turnover panel cooling device or naturally cooling;
Edging: press tea stem particle board product design specification (PDS) or user's request edging;
Stack: General Requirements carries out subsequent handling again and processes after tea stem particle board is stacked 24 hours after properties of product are stable;
Sanding: use 40~120 order abrasive bands at the broadband sanding apparatus, carry out the fixed thick and profile pattern of tea stem particle board and process;
Check: with reference to wood-based plate quality control standards (QCS)s such as GB/T17957-1999, GB/T4897-2003, the physical and mechanical property indexs such as the moisture content of detection tea stem particle board, density, MOR, elastic modelling quantity, internal bond strength, nail-holding ability, thickness swelling rate, burst size of methanal;
Packing, warehouse-in.
Described tea stem particle board can be made the flakeboard of single layer structure, grading structure or sandwich construction.
The product design specification (PDS) thickness of described tea stem particle board is 2~35mm, density 0.40~1.20 g/cm
3
A kind of production craft step of tea stem particle board is:
1) tea stalk is dry, baking temperature is 80 ℃, and dried tea stalk moisture control is pulverized 10%, forms the tea stalk particle, and grain graininess is 20~120 orders;
2) the tea stalk particle after will pulverizing evenly mixes with the adhesive modification Lauxite, forms mixture; The concentration of adhesive is 65%, and resin added is 12% of tea stalk weight;
3) moulding of mating formation: can be by the requirement of tea stem particle board equipment structure design, according to its sheet material low-density, middle density, highdensity needs, tea stalk particle after the applying glue repeatedly spread remove into the multilayer particle board base that the thickness specification is 200mm, also can form by machinery or airflow pavement former.
4) precompressed: the unit pressure of slab precompressed is 1.5MPa, squeeze time 10min;
5) hot pressing: 90 ℃ of unit pressure 1.5MPa, heating platen temperature, the hot pressing time that puts on the tea stem particle board base is that 0.45min/mm, step-down process avoid producing the mass defects such as the layering of plank and bubbling;
6) block: block by tea stem particle board product design specification (PDS) or user's request, this operation be arranged at after the continuous hot-press operation or the multi hot press operation before;
7) cooling: tea stem particle board is cooled off naturally;
8) edging: press tea stem particle board product design specification (PDS) or user's request edging;
9) stack: General Requirements carries out subsequent handling again and processes after tea stem particle board is stacked 24 hours after properties of product are stable;
10) sanding: use 40~120 order abrasive bands at the broadband sanding apparatus, carry out the fixed thick and profile pattern of tea stem particle board and process;
11) check: with reference to wood-based plate quality control standards (QCS)s such as GB/T17957-1999, GB/T4897-2003, the physical and mechanical property indexs such as the moisture content of detection tea stem particle board, density, MOR, elastic modelling quantity, internal bond strength, nail-holding ability, thickness swelling rate, burst size of methanal;
12) packing, warehouse-in.
Embodiment 2
A kind of production craft step of tea stem particle board is:
1) tea stalk is dry, baking temperature is 130 ℃, and dried tea stalk particle is controlled at 3%, pulverizes, and forms the tea stalk particle, and the grain graininess of this tea stalk particle is 20~120 orders.
2) the tea stalk particle after will pulverizing evenly mixes with the adhesive melmac, forms mixture, and the concentration of adhesive is 55%, and resin added is 10% of tea stalk weight;
3) moulding of mating formation: can by the requirement of tea stem particle board equipment structure design, according to its highdensity needs, the even shakedown of tea stalk particle after the applying glue be removed into the single layer structure particle slab that thickness is 100mm.
4) precompressed: make the tea stem particle board base have certain packing, be convenient to slab conveying, cutting etc., the unit pressure of slab precompressed is 1.0MPa, squeeze time 30min;
5) hot pressing: 160 ℃ of unit pressure 3.5MPa, heating platen temperature, hot pressing time 0.25min/mm, the step-down process that puts on the tea stem particle board base avoids producing the mass defects such as the layering of plank and bubbling;
6) block: block by tea stem particle board product design specification (PDS) or user's request, this operation be arranged at after the continuous hot-press operation or the multi hot press operation before;
7) cooling: tea stem particle board is placed turnover panel cooling device or naturally cooling;
8) edging: press tea stem particle board product design specification (PDS) or user's request edging;
9) stack: General Requirements carries out subsequent handling again and processes after tea stem particle board is stacked 24 hours after properties of product are stable;
10) sanding: use 40~120 order abrasive bands at the broadband sanding apparatus, carry out the fixed thick and profile pattern of tea stem particle board and process;
11) check: with reference to wood-based plate quality control standards (QCS)s such as GB/T17957-1999, GB/T4897-2003, the physical and mechanical property indexs such as the moisture content of detection tea stem particle board, density, MOR, elastic modelling quantity, internal bond strength, nail-holding ability, thickness swelling rate, burst size of methanal;
12) packing, warehouse-in.
Embodiment 3
A kind of production craft step of tea stem particle board is:
1) tea stalk is dry, baking temperature is 100 ℃, and dried tea stalk particle moisture control is pulverized 7%, forms the tea stalk particle;
2) the tea stalk particle after will pulverizing evenly mixes with the adhesive isocyanate resin, forms mixture, and adhesive concentration is 45%, and its resin added is 5% of tea stalk weight;
3) moulding of mating formation: can be by the requirement of tea stem particle board equipment structure design, according to its sheet material low-density, middle density, highdensity needs, tea stalk particle after the applying glue repeatedly spread remove into the size-graded particle board base that gauge thickness is 150mm, also can form by machinery or airflow pavement former.
4) precompressed: make the tea stem particle board base have certain packing, be convenient to slab conveying, cutting etc., the unit pressure of slab precompressed is 1.2MPa, squeeze time 20min; Compression ratio is generally 70%;
5) hot pressing: 140 ℃ of unit pressure 2.5MPa, heating platen temperature, hot pressing time 0.35min/mm, the step-down process that puts on the tea stem particle board base avoids producing the mass defects such as the layering of plank and bubbling;
6) block: block by tea stem particle board product design specification (PDS) or user's request, this operation be arranged at after the continuous hot-press operation or the multi hot press operation before;
7) cooling: tea stem particle board is placed turnover panel cooling device or naturally cooling;
8) edging: press tea stem particle board product design specification (PDS) or user's request edging;
9) stack: General Requirements carries out subsequent handling again and processes after tea stem particle board is stacked 24 hours after properties of product are stable;
10) sanding: use 40~120 order abrasive bands at the broadband sanding apparatus, carry out the fixed thick and profile pattern of tea stem particle board and process;
11) check: with reference to wood-based plate quality control standards (QCS)s such as GB/T17957-1999, GB/T4897-2003, the physical and mechanical property indexs such as the moisture content of detection tea stem particle board, density, MOR, elastic modelling quantity, internal bond strength, nail-holding ability, thickness swelling rate, burst size of methanal;
12) packing, warehouse-in.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (1)
1. the production technology of a tea stem particle board, it is characterized in that: described production craft step is:
1) tea stalk is dry, pulverize, form the tea stalk particle;
2) the tea stalk particle after will pulverizing evenly mixes with adhesive, forms mixture;
3) with step 2) moulding of mating formation of the mixture that obtains, and be pressed into described flakeboard;
The baking temperature of tea stalk is 80~130 ℃ in the described step 1), and dried tea stalk moisture control is 3~10%;
The grain graininess of tea stalk particle is 20~120 orders in the described step 1);
Described step 2) adhesive is Lauxite, melmac, phenolic resins, isocyanate resin, modified urea-formaldehyde resin, modified cyanurotriamide resin, phenol-formaldehyde resin modified, any one in the modified isocyanate resin;
Described step 2) adhesive concentration is 45~65%, and its resin added is 5~12% of tea stalk weight.
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CN 201110007926 CN102152369B (en) | 2011-01-14 | 2011-01-14 | Production process of tea stem particle board |
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CN 201110007926 CN102152369B (en) | 2011-01-14 | 2011-01-14 | Production process of tea stem particle board |
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CN102152369B true CN102152369B (en) | 2013-04-17 |
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DE3902023A1 (en) * | 1989-01-20 | 1990-07-26 | Joseph Darma | Building material board made of natural fibres or waste products of plant origin and obtaining the fibres thereof |
US5942058A (en) * | 1995-03-10 | 1999-08-24 | Archer Daniels Midland Company | Co-adhesive system for bonding wood, fibers, or agriculture based composite materials |
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CN1785615A (en) * | 2005-11-04 | 2006-06-14 | 王文毓 | Environmental protection tea composite board material and its processing method |
CN101244579B (en) * | 2008-03-17 | 2010-09-08 | 北京林业大学 | Flakeboard and method of manufacturing the same |
JP5017518B2 (en) * | 2008-06-17 | 2012-09-05 | 株式会社アウラ | Process for reprocessing extracted tea leaves and processed products thereof |
CN101596734A (en) * | 2009-07-02 | 2009-12-09 | 浙江大学 | The preparation method of artificial board that contains tea, tea extraction or tea products waste |
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