1, the status and trends of foreign technology
Since the 1960s, the applications of adsorption-enrichment-desorption enrichment-regenerative catalytic oxidation post-treatment technology have emerged in countries such as Europe and the United States. Dürr in Germany, Megtec in the United States, Enguil in the United States, and Biothermica in Canada are all in the industry Possession of the vast majority of the market. As the core technology of the overall technology, the improvement of adsorbent quality and the improvement of its utilization methods can significantly help improve the emission control level. The Swedish CarlMunters innovatively proposed the idea of ​​making the adsorbent material a rotor with honeycomb structure for the separation process and filed a patent in 1974. In 1986, Munters Company of Sweden took the lead in using honeycomb zeolite runner for VOCs exhaust gas treatment. In 1988, Western Japan Techno Co., Ltd. bonded corrugated and flat-shaped ceramic fiber paper with an inorganic binder to form a honeycomb-shaped rotor and then coated the hydrophobic zeolite in a honeycomb shape Access to the surface of the adsorption runner, and its successful use of VOCs purification. In addition, Nippon Nippon company's related products also represent the advanced world level. Currently in Japan, the United States, Europe and other countries and Taiwan, runner adsorption enrichment technology in the low concentration, large amount of wind industrial organic waste gas treatment has been widely used. Overall, the production technology of zeolite adsorption wheel is still in the hands of foreign enterprises, mainly Munters Corporation of Sweden, Sweden DST Corporation, Sweden ProFlute Corporation, Western Japan Institute of Technology, Japan Ni Jia Si (NICHIAS) company, Japan Daikin (Daikin) company, the United States atea-WKUSA and so on.
The most common, most efficient and thorough treatment technologies used in the combustion of concentrated VOCs are oxidative combustion and catalytic combustion. Among them, the catalytic combustion technology enables VOCs oxidation reaction occurs at lower temperatures, effectively reducing equipment operating power. In the catalytic combustion technology based on the increase of ceramic regenerator and waste heat recovery system is regenerative catalytic combustion technology (referred to as RCO), can significantly reduce energy consumption. In the last century, Mitsubishi Corporation of Japan designed a thermal storage device switched by a moving valve and adopted a ceramic honeycomb body with high heat storage capacity, and carried out practical applications. In addition to continual improvement of equipment technology, catalyst development is also a key element affecting exhaust gas treatment. Foreign researchers have reported a series of Pd, Au, Ce, Al2O3 loaded Pt and other metal catalysts for VOCs catalytic combustion degradation experimental results. SüD-Chemie in Germany is one of the more successful companies currently developing VOCs for oxidative degradation.
Although a few foreign companies have mastered the key technology of zeolite concentrator, the optimization and matching scheme of the enrichment system and the oxidation system still needs to be perfected, and the foreign related products are expensive, which limits the large scale of this technology in the domestic coating and automobile spraying industries Promote the application.
2, the status of domestic technology and trends
Domestic zeolite adsorption and concentration equipment started late, more manufacturers to assembly, the agency as the main business model, as the core of the device zeolite adsorption unit basically relies on imports, foreign production technology companies have also set up equipment assembly plants in the country. However, the existing gap between domestic zeolite runner forming and preparation technology and foreign countries is gradually narrowing. Up to now, many R & D teams of universities and research institutes in China have carried out related research on zeolite runners, including South China University of Technology and Zhejiang University. However, if you want to reach and surpass foreign similar products, you need innovative research and development of wheel preparation technology, the formation of a wheel with independent intellectual property rights preparation technology.
In recent years, China has matured in the development of catalytic combustion technology and has already had examples of industrial application and promotion in China. For the catalytic combustion technology, the use of honeycomb full-effect heat exchanger to recover low-grade heat source, to further optimize the structural design of the system and to achieve standardization, modular design is the future trend of development, representative companies include Qingdao Huashi Jie Environmental Technology Limited Company, Beijing Orleans Ao Fine Ceramics Co., Ltd., Fuzhou Jiayuan Environmental Co., Ltd. and so on.
At present, relevant technical specifications of industrial organic waste gas in China are: Technical Policies for Prevention and Control of Volatile Organic Compounds (VOCs), Technical Code for Treatment of Industrial Organic Waste Gas by Adsorption Process, Technical Code for Engineering Treatment of Industrial Organic Waste Gas by Catalytic Combustion, , Series of standards are: "HJ / T4389-2007 industrial exhaust catalytic purification device", "HJ / T386-2007 industrial exhaust adsorption purification device", "HJ / T387-2007 industrial exhaust gas purification purification device", "GB20101-2006 coating Operating Safety Regulations Organic Waste Gas Purification Equipment Safety Technical Regulations "and so on. But so far, there are still no zeolite adsorption wheel device and zeolite adsorption thermal storage catalytic oxidation coupling device and other related technical specifications, manufacturing standards and product technical requirements. With the continuous improvement of technology and coating industry VOCs control the growing market, the urgent need to develop the appropriate standards and norms.
All in all, the relevant technological research has been carried out in China and has a good foundation for research. However, breakthroughs are needed in the research and development of core materials, systematic integration and application of demonstration projects. The overall level of improvement and even more than the leading international level, to enhance the domestic paint and other industries gale, low concentrations of VOCs treatment level and equipment levels have significant help to promote the development of domestic industrial organic waste gas treatment industry.
1. About CHVM sidewall Cargo Semi Trailer
The sidewall cargo Semi Trailer use to load a wide range of products and materials, like sand, bags, poultry etc. Also the some bulk cargo, very widely used in the transportation industry. Suitable for the mid/long distance transportation of the mid/heavy duty and bulk cargo. The high side cargo trailer can be added with a container turn lock to transport the container.
What are the types of CHVM high side trailer?
2 axle sidewall trailer, 3 axle dropside trailer, 4 axle high side trailer, grain trailer and the sidewall drawbar trailer. And load capacity has 30/40/60/80/100 tons for your choice. Customizable side wall height.
Through the video below, you can learn about different types of side wall semi trailers(like 3 axle sidewall trailers, 4 axle high side trailer, grain hopper trailer, aluminum alloy side board trailer, 2 alxe side wall semi trailer with bogie suspension, dropside drawbar trailer)
1. What is a sidewall semi trailer?
Dropside trailer developed on the basis of a container flatbed trailer,the drop side trailer has a side wall structure design and wide range of uses.It mainly suitable for medium and long-distance transportation of medium and heavy and bulk cargo.
It has become the first choice for medium and long distance freight trailers.The cargo semi-trailer can be added with a container turn lock to transport the container.
2. What is the common structure of dropside trailer?
The common structure of the grain hopper is divided into four types according to the axle: 2 axles 40ft grain trailer, 3 axles drop sided trailer, 4 axles platform trailer, and the multi-purpose high side trailer. And load capacity has 30/40/60/80/100 tons for your choice. Customizable side wall height.
3. Shipment and transportation of dropside trailer
Many customers use container shipment, which has low transportation cost and short transportation time. But the bad thing is that the rear of the side wall semi trailer needs to be composed.
Some customers are bulk freighter or ro-ro ships. CHVM sideboards trailer will spray wax and cover the tarpaulin when the side wall trailer use bulk freighter.
4. How to purchase a side wall semi trailer?
The easiest way is to look at the weight of the cargo semi trailer. The heavier the weight of cargo trailer, the better the quality. The 3 axle cargo trailer purchased by African customers self weighs is 7.8 tons. If the weight is only 6.7 tons, the cost of this general cargo trailers can save more than 1,000 dollars.
Here are a few more important points:
1. Main beam.
The main beam should pay attention to whether the thickness is an international standard. The international standard for the main beam of a Side Panel Cargo Semi Trailer is 14/8/16 mm. The steel plate in the middle of the beam is made of Q345B manganese steel, the thickness is 8mm. Many unreliable suppliers will use 6mm main beam to save costs. But the carrying capacity was reduced by 26%.
The international standard thickness of the middle part of the beam must be 8mm.
2. Bottom Floor.
Many platform semi trailer are also used to transport bulk cargo and other items. The bottom plate of the CHVM Drop Side Body Trailers passes the international standard 3mm thick checkered plate. If it is replaced with a 2mm thick pattern plate or a 2.5mm bottom plate. Cost can be reduced by $ 700.
3. Side door.
The common height of side door is 600mm, 800mm, 1000mm. The side door adopts vertical corrugated structure.
The door frame is a 40x60mm rectangular steel tube.
4. Axles.
The axles of dry cargo trailer for sale are divided into three types: 13-ton axles, 13-ton axles + 16-ton brake system axles, 16-ton axles,
The axle of the CHVM drop side trailer is a 13-ton axle + 16-ton brake system axle, which has better braking performance and shortens the braking distance by more than 5 meters.
5. Tires.
The 3 axle sidewall trailer uses a vacuum tire with better heat dissipation performance, the model is 12R22.5.
CHVM dry goods carrier trailer uses custom made tires in a tire factory., wear-resistant tires. On Chinese highways, Titan tires can reach more than 300,000 kilometers.
6. Suspension of high side trailer.
CHVM multi-function trailer suspension adopts special high-strength steel. 6mm thickness. Center pin diameter is 70mm.
Stronger than suspensions in many factories.
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Liangshan Changhong Special Purpose Vehicle Manufacturing Co., Ltd. , https://www.chvehicles.com