Introduction:
The fine seed cleaner universally used for
pre and fine cleaning many different
species of crops such as grain, garden seeds, grass seeds, flower seeds, corn
and leguminous seeds. It ensures excellent efficiency and purity in the seed cleaning.
Depending on the
cleaning task, it offers a number of screen cleaners for pre-cleaning, fine cleaning and grading. Sophisticated feeding systems guarantee uniform feeding of
the screens across the entire working width. The Super Fine cleaners include
shaker feeder, pre-suction and after-suction system, electronic control system,
flexible screen flow and air lifting fan. It is a very competitive machine,
both as regards price and capacity as well as function and operation.
Characteristics:
1) Multiple sieves are reverse configuration,
centralized dropping and good for removing the large and small impurity.
2) Positive and negative double wind system are
interactive configuration, cleaning impurity up and down twice ,good effect for
removing light impurity and bad , mold ,injured seed .
3) According to the processing need, it can make
the screen sets different combination. So it`s processing targeted.
4) Up and down screen box reverse configuration, good
self- balanced.
5) Screen body and light impurity removing and
feed components are made of high quality wooden parts, good sealing and
vibration absorbing performance. The noise is low.
6) The wide range of parameter adjustment,
convenient adjustment, easy to achieve fine
cleaning processing.
7) Adopting the whole steel frame, rubber ball
sieve cleaning device, clogging cleaning is effective.
8) All moving parts are equipped with safety
protection device, the safety protection is good;
9) Screen body adopt box structure, can
effectively reduce the processing workshop dust content;
10) The left and right sides is symmetrical
design, discharge system can be left and right exchanged conveniently to meet different users` requirement.
Specification:
Model
5X-5
5X-12
Dimension(L×W×H)
3200×1920×3600 mm
3790×1940×4060 mm
Overall weight
3250 kg
3600 kg
Rated capacity
5 t/h
12 t/h
Overall air volume
8200 m3
12520 m3
External air blower
4-72N0-6A, 7.5 kW
4-79N0-6A, 11kw
Vibration sieve
motor(gear motor)
2.2 kW
2.2 kW
Back lifting system
motor
3.0 kW
3.0 kW
Feeding motor
1.5 kW
1.5kw
Total Power
6.7 kW
6.7kw
Fine Seed Cleaner Fine Seed Cleaner,Seed Cleaning Machinery,Wheat Seed Cleaner,Maize Cleaning Machine SHIJIAZHUANG SYNMEC INTERNATIONAL TRADING LIMITED , https://www.seedgraincleaner.com
Biochemical industry developments
Biochemical industry developments
one, Â Â Â Â Â Â Biochemical industry and its characteristics
Biotechnology is a technology based on life sciences that applies natural science methods and engineering principles to process biological materials through biological agents to provide products or services to society. Using biochemical basic research results, combined with biological and chemical engineering techniques to produce chemical products that are useful to humans, thus forming a biochemical industry, an emerging industry in the chemical industry.
Biochemical characteristics
Renewability of raw materials: Biochemical production of chemicals is generally based on renewable resources such as photosynthesis products and processed products, such as starch, molasses, crop straw, etc., which is conducive to sustainable economic development and promote agricultural industrialization. development of.
Mild production process: Under the action of bacteria, the production process is generally carried out under normal temperature and pressure. Different from many chemical reactions, it must be carried out under severe conditions such as high temperature, high pressure, strong acid and strong alkali, so the safety is extremely high.
Reaction specificity: The catalytic reaction by biological enzymes generally has good specificity, not only substrate specificity, but also stereochemical specificity, so there are few side reactions in modern biotechnology processes.
Equipment identity: Biotech production of chemicals is generally similar, often replacing production varieties, rather than the obvious specificity of traditional chemical equipment.
Second, the application field of biochemical industry
Medicine: antibiotics, such as penicillin, tetracycline, insulin, interferon, growth hormone, various growth factors and vaccines; in 1997, the market turnover of biochemical drugs reached 13 billion US dollars, accounting for 33% of the total sales of biochemical products worldwide. The biggest feature of biopharmaceuticals is that they have small toxic and side effects, are safe for human body, and are in line with the psychology of today's people. It is expected that the market will continue to grow at an annual rate of about 8%.
Amino acids: lysine, glutamic acid, threonine, arginine, proline, L-phenylalanine, etc., wherein the global annual consumption of lysine reaches 400,000 tons, and the consumption of glutamic acid For more than 1.5 million tons, the consumption of threonine is also above 10,000 tons/year. Biological amino acids will continue to grow.
Enzyme preparation: Enzyme is a biocatalyst of protein nature produced by cells. It has specificity and high efficiency and has been widely used in fermentation, food, medicine, chemical and Other sectors. At present, the enzyme preparations produced industrially include proteases, amylases, isomerases, lipases, cellulase and other products. The current market sales are nearly 2 billion US dollars, of which the detergent industry accounts for about one-third of the market. It is expected that the global production of enzyme preparations will develop at a rate of 6 to 8% in the future, and the application fields of the products will continue to expand.
Biological pesticides: an important part of the pesticide industry, China can now produce 12 kinds of products, mainly Bacillus thuringiensis, Jinggangmycin, gibberellin, avermectin, etc., of which the production of jinggangmycin ranks first in the world. A large amount of avermectin is exported to foreign countries and has a great influence on the international market.
Organic acids: Organic acids produced by biochemical technology mainly include citric acid, lactic acid, itaconic acid, and prolonged acid (vitamin C precursor). The global production of citric acid has reached more than 800,000 tons. In the food, medicine, light industry and other sectors, and will continue to maintain a good development trend.
Organic raw materials: The production of global ethanol is still dominated by fermentation methods, especially in the United States, Brazil and China, where fermented alcohol accounts for more than 85% of the total capacity. Compared with the petrochemical route, the ethanol produced by the microbial fermentation process has strong competitiveness, especially the renewable agricultural and sideline products as raw materials, and there is no problem of depletion of resources, which is one of the ways to alleviate the shortage of oil supply.
Others: Xanthan gum, gellan gum, erythritol, microbial polysaccharides and other products also have a promising future.
Third, the status quo and development trend abroad
After more than 20 years of development, foreign bio-chemicals have been greatly developed, and the products produced now are difficult to count. For example, bio-pesticides include ricin-S, kasugamycin, polyoxymycin, and effective mycin. There are 30-40 kinds of organic acids, such as citric acid, lactic acid, succinic acid, α-ketoglutaric acid, fumaric acid, malic acid, itaconic acid, gluconic acid, erythorbic acid, ascorbic acid, tartaric acid, kojic acid, fatty acid, Brazil. Acid, salicylic acid, azelaic acid, adipic acid, γ-linolenic acid, hyaluronic acid, etc.; amino acids include lysine, aspartic acid, alanine, glutamic acid, threonine, guanidine Acid, isoleucine; a wide variety of enzyme preparations, Japan produces more than 60 kinds of enzymes, such as glucoamylase, amylase, protease, lipase, cellulase, glucose foreign enzyme, aminoacylase, fumaric acid Invertase, penicillin acylase, various diagnostic enzymes; microbial polysaccharides such as xanthan gum, gellan gum; others such as acrylamide.
In recent years, the status of bio-chemicals in biotechnology is rising, or biotechnology is gradually shifting from traditional medicine to agriculture to bio-chemicals. The most influential is the production of L-Latex by the biological process of Purac in the Netherlands. It has established a joint venture with Gagill of the United States to build a 34,000-ton L-lactic acid plant and plans to further develop it to 68,000 tons. The new market for L-lactic acid is mainly used for the production of biodegradable polylactic acid for plastics, which has been industrially produced in the United States and other places, and the products have been put on the market. Another important market is the use of lactic acid, which is non-toxic, biodegradable, and easy to recycle, allowing lactate to be used in electronic circuit boards and metal degreasing to replace chlorine solvents. In addition, DuPont and Jenin Cole cooperated to produce 1,3-propanediol by biological method to further produce PTT resin. PTT resin is similar in use to conventional PET resins and has a lower cost. Its technology development has been nearly successful and is expected to have a major impact on polyester production in the future.
Foreign biochemical reactors have entered a new stage of research and development, and their breakthrough will achieve large-scale biotechnology production of petrochemical secondary products, the impact of which is difficult to estimate. It is reported that 20% of the chemicals will be produced by biotechnology in the near future. In short, the 21st century biochemical industry will be a major chemical industry.
Fourth, the status quo of domestic development
Biotechnology is also highly valued in China. In 1986, the “863â€, a high-tech development plan, is an important part of biotechnology. For more than ten years, biotechnology research and development has been tracking the world's advanced level, adopting the strategic goal of limited goals and key breakthroughs, and has funded more than 70 pilot projects in medicine, agriculture and chemical industry. There are 10 medical genetic engineering drugs and 3 genetic engineering vaccines that have been put into the market. Some of them are still in clinical research. Three agricultural genetic engineering technologies have entered commercial production. In the biochemical industry, a number of scientific and technological achievements have been formed. Such as pesticides, there are Bacillus thuringiensis, blasticidin-S, chunleimycin, polyoxomycin, jinggangmycin, salinomycin, gibberellin, liuyangmycin, huaguangmycin, phalloidin, Nongkang 120, plant cytokinin, 7051 insecticide, gold ribomycin, etc., played an important role in the field of pesticides. Feed antibiotics such as chlortetracycline, bacitracin zinc, salinomycin, maduramycin, tylosin, oxytetracycline, etc., in addition to meeting domestic demand, some products such as chlortetracycline occupy an important role in the international market. status. In terms of organic acids, China's citric acid accounts for about 1/3 of the world's total output, and 70-80% of its products are used for export, which has a greater impact on the world market. VC production technology and production capacity have an important position in the world. Heterotoxin and its sodium salt also have considerable production scale. Ascorbic acid (VC) and isokinetic acid have been applied in food development (the number of foreign patents has reached hundreds), and its prospects are still optimistic. Itaconic acid, Brazilian acid, and only a few countries in the world are engaged in industrial production. China has an important position in the world in terms of production technology and production scale. L-lactic acid has made significant progress in recent years, and new technologies for fermentation of glycerol have made great progress. In terms of enzyme preparations, the enzyme preparations required by China's food industry have been fairly basic, with more than 70 preparations and a total production capacity of more than 200,000 tons. New enzyme preparations such as alkaline proteases and alkaline lipases have a preliminary basis. In the fierce competition, xanthan gum has formed 3-4 backbone production enterprises in the fierce competition. The domestic market has been initially opened and the international market has been opened up. Other microbial polysaccharide varieties such as gellan gum, PSI231, β-CP, short-strained polysaccharide, bacterium Brevibacterium polysaccharide, HL4423 polysaccharide, etc. also have a certain degree of technology and application development. In addition, biopolymer polyacrylamide has been industrially produced. In particular, the biochemical key lysine production technology has made a major breakthrough. The single reactor is 200M 3 and the Guangxi lysine plant has a total production capacity of 10,000 tons. It has entered the ranks of the world's major industrial production.
From the overall situation, in just over a decade, China's biochemical industry has made remarkable progress, research and development is active, and the overall biochemical technology level plays an important role in the world. Industrial production has developed rapidly, and China has become a major producer of many important biochemical products. The product application market has developed rapidly with the upgrading of industries such as food, feed, textile, daily chemical, petroleum, environmental protection, etc. Many products have rapidly opened up the international market. The chemical industry attaches great importance to the development of bio-chemical industry. More than ten years of efforts have played an important role in adjusting the structure of the chemical industry and cultivating new economic growth points. However, there are still many problems in China's bio-chemical industry, mainly:
The overall production scale is small, and the proportion in the chemical industry is particularly small.
The combination of scientific research and production is not yet close, and many scientific research results are still industrialized.
Many industrially produced products are far from economic scale and affect international competitiveness.
The development of domestic applied technologies is weak, affecting rapid growth, and insufficient development in foreign markets.
In many places, there is insufficient understanding of the importance of biotechnology and biochemistry. There is a clear gap between Shanghai and Shanghai as a new economic growth point many years ago. The president of the Chinese Academy of Sciences has pointed out that the use of information technology new materials and biotechnology as a representative of high-tech transformation of traditional industries is China's most urgent task, and in many places this urgency is still insufficient.