阅读说明：本技术 一种棉杆刨花板的加工工艺 (Processing technology of cotton stalk shaving board ) 是由 朱家科 张辉 陈润生 于 2020-05-06 设计创作，主要内容包括：本发明提供了一种棉杆刨花板的加工工艺,包括以下步骤：S01、原料制备：取农田棉杆若干,去尘后待用；S02、原料干燥：将洗净的棉杆放入干燥室中干燥；S03、原料粉碎：将干燥后的原料放入到粉碎机中进行粉碎,其中粉碎机的转速200-300rad/min,粉碎时间为10-15min；S04、原料筛选：将粉碎的原料过200目筛；S05、一次热压：将步骤S04得到的原料用氨水清洗调节PH在6.5-7.5,在平压机下进行压合；S06、施胶：将粘胶剂直接喷洒在步骤S05制得的刨花板的表面并使其渗透到刨花板内部；S07、二次热压：将施胶后的刨花板再次经过平压机热压；S08、冷却：将经过二次热压的刨花板经过冷风机初步制冷后,再通过通风自然冷却；S09、包装入库：对压制后的刨花板进行质量检测,合格后入库。(The invention provides a processing technology of a cotton stalk shaving board, which comprises the following steps: s01, preparation of raw materials: taking a plurality of farmland cotton stalks, and removing dust for later use; s02, drying raw materials: putting the cleaned cotton stalks into a drying chamber for drying; s03, crushing the raw materials: putting the dried raw materials into a pulverizer to pulverize, wherein the rotation speed of the pulverizer is 200-300rad/min, and the pulverizing time is 10-15 min; s04, screening raw materials: sieving the crushed raw materials with a 200-mesh sieve; s05, primary hot pressing: cleaning the raw material obtained in the step S04 with ammonia water, adjusting the pH value to 6.5-7.5, and pressing under a flat press; s06, sizing: spraying adhesive directly on the surface of the particle board prepared in step S05 and allowing the adhesive to penetrate into the particle board; s07, secondary hot pressing: hot pressing the particle board after glue application by a flat press again; s08, cooling: preliminarily refrigerating the shaving board subjected to secondary hot pressing by an air cooler, and naturally cooling by ventilation; s09, packaging and warehousing: and (4) carrying out quality detection on the pressed shaving board, and warehousing after the shaving board is qualified.)

1. A processing technology of a cotton stalk shaving board is characterized by comprising the following steps:

s01, preparation of raw materials: taking a plurality of farmland cotton stalks, and removing dust for later use;

s02, drying raw materials: drying the cleaned cotton stalks in a drying chamber at the temperature of 120 ℃ and 130 ℃ for 20-30 min;

s03, crushing the raw materials: putting the dried raw materials into a pulverizer to pulverize, wherein the rotation speed of the pulverizer is 200-300rad/min, and the pulverizing time is 10-15 min;

s04, screening raw materials: sieving the crushed raw materials with a 200-mesh sieve;

s05, primary hot pressing: cleaning the raw material obtained in the step S04 with ammonia water, adjusting the pH value to 6.5-7.5, and pressing under a flat press;

s06, sizing: spraying adhesive directly on the surface of the particle board prepared in step S05 and allowing the adhesive to penetrate into the particle board;

s07, secondary hot pressing: hot pressing the particle board after glue application by a flat press again;

s08, cooling: preliminarily refrigerating the shaving board subjected to secondary hot pressing by an air cooler, and naturally cooling by ventilation;

s09, packaging and warehousing: and (4) carrying out quality detection on the pressed shaving board, and warehousing after the shaving board is qualified.

2. The processing technology of the cotton stalk shaving board according to claim 1, wherein the adhesive is a mixture of diphenylmethane diisocyanate, diphenylmethane diisocyanate and silicone oil, and the mixing ratio of the diphenylmethane diisocyanate to the diphenylmethane diisocyanate is 1: 1.5: 0.05.

3. the process for manufacturing a cotton stalk particle board as claimed in claim 2, wherein the preparation method of the adhesive comprises the following steps: the diphenylmethane diisocyanate, the diphenylmethane diisocyanate and the organic silicone oil in the proportion are sequentially added into a rubber mixing machine for stirring, the stirring is carried out for 40-60min, the stirring temperature is 150-170 ℃, and the rotating speed of the rubber mixing machine is 500-700 rad/min.

4. The process of claim 1, wherein the moisture content of the cotton stalk shaving board dried in step S02 is 5-7%.

5. The process of claim 1, wherein the temperature of the primary hot pressing in step S05 is 160-180 ℃, the time is 30-60S, and the pressure is 0.8-1.0 MPa.

6. The process of claim 1, wherein the secondary hot pressing temperature in step S07 is 190-200 ℃, the time is 15-20S, and the pressure is 0.8-1.0 MPa.

Technical Field

The invention mainly relates to the technical field of shaving boards, in particular to a processing technology of a cotton stalk shaving board.

Background

The shaving board is applyed the adhesive hot pressing by the wood shavings and is formed, and traditional product adopts top layer sandwich layer gradual change structure group base of mating formation, and the physical and chemical properties is excellent, and the processing of being convenient for receives people's qing and ignores. With the technological progress, derived series products and deep processing varieties of the shaving boards are continuously appeared and improved, and various functional shaving boards are gradually applied to various fields of national economy.

The cotton yield of China is high, the residual cotton stalks cannot be fully utilized, the cotton stalks are generally used as fuel of farmers, the utilization value of the cotton stalks is low, most of the existing shaving boards are made of wood, and the shaving boards made of the cotton stalks are few, so that the research and development of the cotton stalk shaving board has great market prospect.

Disclosure of Invention

The invention mainly provides a processing technology of a cotton stalk shaving board, which is used for solving the technical problems in the background technology.

The technical scheme adopted by the invention for solving the technical problems is as follows: a processing technology of a cotton stalk shaving board comprises the following steps:

s01, preparation of raw materials: taking a plurality of farmland cotton stalks, and removing dust for later use;

s02, drying raw materials: drying the cleaned cotton stalks in a drying chamber at the temperature of 120 ℃ and 130 ℃ for 20-30 min;

s03, crushing the raw materials: putting the dried raw materials into a pulverizer to pulverize, wherein the rotation speed of the pulverizer is 200-300rad/min, and the pulverizing time is 10-15 min;

s04, screening raw materials: sieving the crushed raw materials with a 200-mesh sieve;

s05, primary hot pressing: cleaning the raw material obtained in the step S04 with ammonia water, adjusting the pH value to 6.5-7.5, and pressing under a flat press;

s06, sizing: spraying adhesive directly on the surface of the particle board prepared in step S05 and allowing the adhesive to penetrate into the particle board;

s07, secondary hot pressing: hot pressing the particle board after glue application by a flat press again;

s08, cooling: preliminarily refrigerating the shaving board subjected to secondary hot pressing by an air cooler, and naturally cooling by ventilation;

s09, packaging and warehousing: and (4) carrying out quality detection on the pressed shaving board, and warehousing after the shaving board is qualified.

Furthermore, the adhesive is a mixture of diphenylmethane diisocyanate, diphenylmethane diisocyanate and organic silicone oil, and the mixing ratio of the diphenylmethane diisocyanate to the diphenylmethane diisocyanate is 1: 1.5: 0.05.

further, the preparation method of the adhesive comprises the steps of sequentially adding the diphenylmethane diisocyanate, the diphenylmethane diisocyanate and the organic silicone oil in the above proportion into a glue mixer for stirring, wherein the stirring is carried out for 40-60min at the stirring temperature of 150-.

Further, the water content after drying in the step S02 is 5% to 7%.

Further, the temperature of the primary hot pressing in the step S05 is 160-.

Further, the secondary hot pressing temperature in the step S07 is 190-.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the adhesive is a mixture of diphenylmethane diisocyanate, diphenylmethane diisocyanate and organic silicone oil, the conventional urea-formaldehyde resin adhesive is replaced, the adhesive is safe and environment-friendly, the organic silicone oil is arranged, the flexibility of the adhesive is increased when plates are glued, gaps among the plates are fully filled, and cotton stalks are used as raw materials, so that the raw materials are sufficient, and the overall processing cost is relatively low.

The present invention will be explained in detail below with reference to specific examples.

Detailed Description

Reference will now be made in detail to various exemplary embodiments of the invention, the detailed description should not be construed as limiting the invention but as a more detailed description of certain aspects, features and embodiments of the invention.

It will be apparent to those skilled in the art that various modifications and variations can be made in the specific embodiments of the present disclosure without departing from the scope or spirit of the disclosure. Other embodiments will be apparent to those skilled in the art from consideration of the specification. The specification and examples are exemplary only.