Uses of wheat straw, what is the use of wheat straw?

Straw can be made not only into thermal insulation foam in refrigerators, roof tiles on houses, craft packaging bags, etc., but also tableware often used in daily life such as plates and cups. "Rice husks, straw, wheat stalks, corn stalks, etc. can be made into tableware, and they will not be damaged after three or four years of normal use. According to the person in charge of the green state new material in Changfeng County, Anhui Province, the daily utensils made of straw are safe and environmentally friendly, antibacterial and antibacterial, and not mildew, and are widely sold in the European and American markets.

In addition to making small objects, straw can also play a big role. In front of the booth of Hongqiao Building Materials **** in Fuyang City, Anhui Province, there are several desks and chairs, and their plates are made of straw pressing. "Zero formaldehyde, health and safety are our characteristics.

Zhang Zhongcheng, the person in charge of the company, introduced that every 3 tons of straw raw materials can be synthesized into 1 cubic meter of boards. "Replacing wood with grass not only avoids the environmental pollution problem of straw burning, but also reduces the amount of wood used.

1. Renewable bio-oil.

University of Science and Technology of China.

The Renewable Clean Energy Laboratory announced that a new scientific and technological achievement developed by Professor Zhu Xifeng and Professor Guo Qingxiang can fundamentally solve this long-standing problem. They will pyrolyze and liquefy and reprocess a variety of raw materials such as wood chips, rice husks, corn stalks and cotton stalks, turn waste into treasure, and convert them into bio-oil, of which the oil yield of wood chips is more than 60%, the oil yield of straw is more than 50%, and the calorific value of bio-oil.

16 18 MJ kg.

2. Fermented feed.

Straw with more water and sugar is a good feed material, especially corn straw, wheat straw, etc.

It is understood that at present, the utilization rate of straw is getting higher and higher, not only the straw is returned to the field after crushing, but also the farm also needs a large amount of straw. For edible fungus processing enterprises, it is a treasure, and the wheat straw that is beaten into bags is the medium of edible fungi. Straw is also an industrial raw material, which is widely used in papermaking, building materials, alcohol, and disposable packaging boxes.

It can also be used as a new energy source, using straw fermentation to produce biogas, produce new fuels, etc. In short, the potential for the development of comprehensive utilization of straw is increasing, and the ways are also very extensive.

Biogas is used as food to feed animals, and burned as fertilizer for heating.

Wheat straw is an efficient and long-term raw material for light industry, textiles and building materials, which can not only partially replace bricks, wood and other materials, but also effectively protect cultivated land and forest resources. Straw wall panels are highly insulated, decorative and durable, and many developed countries have widely used "straw boards" as a substitute for wood panels and tiles in the construction industry.

In addition, the processing of straw by technical methods can also be used to make rayon and rayon, to produce furfural, caramel, wine and xylitol, to process fiberboard, and so on.

Combustion hazards. Many large cities prohibit straw burning because the gases produced by burning straw are extremely harmful to the atmosphere.

1. Increase the content of CO2 in the air, and the proportion of CO2 is much greater than that of burning ordinary trees.

2. Increase the inhalable particulate matter in the air, which is a white powdery solid.

3. Reduce the visibility of the air, and generate a large amount of white solid smoke when the straw is burned. Because the solids are very small, they are scattered in the form of powder, which greatly affects the visibility of cities, highways, airports, etc.

Wheat straw is a natural plant fiber material and a composite material.

Wheat straw is a new type of green and environmentally friendly composite material composed of straw, rice husk, cellulose and other natural plant fibers and polymer resin through a special process, which has similar properties to ordinary thermoplastics and can be directly processed into products through injection molding equipment.

With the enhancement of people's awareness of environmental protection, we have consciously reduced the use of disposable plastic tableware, and tableware made of wheat straw has entered people's field of vision. Tableware made of wheat straw is easily decomposed into fertilizer for plants by microorganisms, which will not cause secondary pollution, which is healthy and environmentally friendly.

Wheat straw uses:

Wheat straw can be used as forage, fuel, papermaking, returning to the field, etc. After being crushed by the harvester, it can be directly returned to the field, which can improve the soil structure, increase nutrition, and be conducive to the sowing of the next crop; As feed for cattle and sheep, it can reduce the purchase of cereals; After wheat straw is collected, it can be used to make boards and paper.

Wheat straw is used for loop manure to increase the content of soil organic fertilizer; It can be used to produce disposable sanitary chopsticks and fast food boxes; Deep processing as a new energy source, such as straw gasification to gas, straw briquetting to make charcoal, domestic fuel, etc.

Straw is a gift from nature, and as long as it is used properly, straw is an important biomass resource.

1. Make fuel.

There are many ways to make fuel from straw:

1) Directly bundled into straw round bales (square bales) from the ground to make direct-fired fuel (bundle-fired direct-burning).

Straw bales (round bales).

2) The secondary processing into pellets or briquettes of the molding fuel, it becomes a high-quality, clean biomass fuel.

Biomass pellets (straw pellets).

Biomass briquetting (straw briquetting).

Different heating applications require different fuels.

For large boilers such as central heating companies and grain drying, it is more suitable for the first bundle direct combustion method, which has many successful cases in Northeast China, which is more economical than coal burning.

For rural areas, it is more suitable for fuels such as straw pellets and straw briquettes, which are convenient for storage and clean.

2. Crush and return to the field.

When harvesting corn, the straw is directly crushed and returned to the field, which can effectively increase the content of soil organic matter, improve nutrients, prepare for planting rural crops in the second year, and improve soil fertility, which is a good way to protect black soil.

Crush and return to the field (** from the Internet).

3. Make feed.

Straw and corn are made into silage for feeding cattle and sheep, which can effectively improve the lean meat rate and milk yield of cattle and sheep.

Cattle and sheep feed (** from the Internet).

In addition, after the straw is crushed, it can also generate electricity, produce biomass natural gas, biogas, make industrial raw materials, edible fungus base materials, etc., and have many uses.

After being crushed by the harvester, it can be directly returned to the field, which can improve the soil structure, increase nutrition, and be conducive to the sowing of the next crop; As feed for cattle and sheep, it can reduce the purchase of cereals; After wheat straw is collected, it can be used to make boards and paper. The use of wheat straw for circle manure to increase the content of soil organic fertilizer; It can be used to produce disposable sanitary chopsticks and fast food boxes; Deep processing as a new energy source, such as straw gasification to gas, straw briquetting to make charcoal, domestic fuel, etc.

1. After wheat straw bleaching and toughening treatment, it can be used to weave straw hats, straw mounds and various handicrafts. 2. The wood-based panels produced from wheat straw are light in weight, high in strength and have good performance in heat preservation. 3. Wheat straw can be used as a medicinal material.

4. Wheat straw can be used as feed for livestock. 5. Wheat straw can also be used as fuel. Wheat straw refers to the straw of the crop wheat after it has been threshed after maturity.

Benefits of wheat straw: 1. Increase the content of nutrients in the soil: wheat straw contains nitrogen, phosphorus, potassium, calcium, magnesium and other nutrients, and also contains organic matter.

2. Improve soil activity: The energy source of microbial activity in the soil is mainly chemical energy, and it happens that wheat straw contains a large amount of chemical energy, which has the effect of strengthening respiration, fiber decomposition, ammoniation and nitrification.

3. Improve soil physical properties: After the straw is returned to the field, it will be bonded with calcium and magnesium in the soil to form calcium humate and magnesium humate, which can enhance the permeability of the soil, strengthen the ability to retain water and fertilizer, and then promote the root growth of subsequent crops and lay the foundation for improving yield.