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With the rapid development of the rubber industry, China's tire production is increasing at a rate of more than 15% per year. The amount of conveyor belts is increasing by more than 10 million square meters per year, and the amount of waste rubber such as used tires and used conveyor belts is also greatly increasing every year. increase. At present, the comprehensive utilization rate of waste rubber in China is around 70%, that is, 30% of the hundreds of millions of waste rubber products are not processed, and the number is huge and it is astounding. The author believes that to solve the “black pollution†caused by waste rubber, it is necessary to vigorously develop waste rubber recycling technologies such as reclaimed rubber, and at the same time, start from the source to reduce the amount of waste rubber and extend the production cycle of waste rubber.
First of all, tire manufacturers should put quality products in good hands, in addition to actively adjust and optimize product structure, reduce the rate of returning odds, and truly make unqualified products not leave the factory. They should also vigorously promote the correct use of tires to users as much as possible. The first pass to produce good waste rubber.
Secondly, compulsory regulations and standards should be adopted to limit the use of tires such as overloaded tires in an unsatisfactory manner, so as to ensure that the service life of products is not artificially reduced. Overloading, speeding, and one tire running in the end are other unsatisfactory uses. This is a major reason why the rate of renovation of used tires has not been able to quickly increase. To this end, production companies, distributors, traffic management departments, etc. should work together to provide drivers with a general education and routine inspection of tire use methods. The traffic control department must ensure that the tires reach the wear indicator and force the driver to re-launch the tires; marketers should pilot the trade-in business and promote the use of retreaded tires; the tire factory and marketers should jointly refuse to sell the cut-off and no three-bags; Departments should strengthen the inspection and investigation of unqualified rubber products.
Third, tire retreading should be actively developed to promote the use of high-strength conveyor belts. The retreading of used tires and repair of old conveyor belts are the most direct and effective recycling methods for old rubber products. In 2007, there were about 8 million retreaded tires in China, and the tire retreading rate was still relatively low. Therefore, it is necessary to focus on the development of the retreading business for heavy-duty radial tires, vigorously promote the new retreading process for pre-cured tire treads, limit and gradually eliminate the hot-repair retreading process, and resolutely ban old tires. Re-engraving of treads, pseudo-renovation and false renewal of skeletal layers, etc., implementation of access systems for retreaded enterprises. Tire enterprises and retreading enterprises should cooperate in the development of new tire retreading processes and new equipment, and strive to localize pre-cured treads, middle lining rubber and retread main equipment. Conveyor belt manufacturers should strengthen their social responsibilities and assist users in restoring and using old conveyor belts. After the fiber conveyor belt is scrapped, it should be made into reclaimed rubber or rubber powder, and at the same time, tackle the work of cutting, separating and recycling steel wire rope conveyor belt. Non-tire rubber products, such as used motorcycle tires, butyl rubber stoppers, shoe soles, condoms, and used defective products, should be directly used for reclaimed rubber or rubber powder production.
In addition, recycling of waste rubber should be based on reclaimed rubber, supplemented by rubber powder, focusing on the development of odorless reclaimed rubber, special reclaimed rubber, and synthetic reclaimed rubber, with a focus on the development of reprocessing of reclaimed rubber and rubber powder. Environmental protection should be used as a hard indicator of tire production, reclaimed rubber and rubber powder production.
First of all, tire manufacturers should put quality products in good hands, in addition to actively adjust and optimize product structure, reduce the rate of returning odds, and truly make unqualified products not leave the factory. They should also vigorously promote the correct use of tires to users as much as possible. The first pass to produce good waste rubber.
Secondly, compulsory regulations and standards should be adopted to limit the use of tires such as overloaded tires in an unsatisfactory manner, so as to ensure that the service life of products is not artificially reduced. Overloading, speeding, and one tire running in the end are other unsatisfactory uses. This is a major reason why the rate of renovation of used tires has not been able to quickly increase. To this end, production companies, distributors, traffic management departments, etc. should work together to provide drivers with a general education and routine inspection of tire use methods. The traffic control department must ensure that the tires reach the wear indicator and force the driver to re-launch the tires; marketers should pilot the trade-in business and promote the use of retreaded tires; the tire factory and marketers should jointly refuse to sell the cut-off and no three-bags; Departments should strengthen the inspection and investigation of unqualified rubber products.
Third, tire retreading should be actively developed to promote the use of high-strength conveyor belts. The retreading of used tires and repair of old conveyor belts are the most direct and effective recycling methods for old rubber products. In 2007, there were about 8 million retreaded tires in China, and the tire retreading rate was still relatively low. Therefore, it is necessary to focus on the development of the retreading business for heavy-duty radial tires, vigorously promote the new retreading process for pre-cured tire treads, limit and gradually eliminate the hot-repair retreading process, and resolutely ban old tires. Re-engraving of treads, pseudo-renovation and false renewal of skeletal layers, etc., implementation of access systems for retreaded enterprises. Tire enterprises and retreading enterprises should cooperate in the development of new tire retreading processes and new equipment, and strive to localize pre-cured treads, middle lining rubber and retread main equipment. Conveyor belt manufacturers should strengthen their social responsibilities and assist users in restoring and using old conveyor belts. After the fiber conveyor belt is scrapped, it should be made into reclaimed rubber or rubber powder, and at the same time, tackle the work of cutting, separating and recycling steel wire rope conveyor belt. Non-tire rubber products, such as used motorcycle tires, butyl rubber stoppers, shoe soles, condoms, and used defective products, should be directly used for reclaimed rubber or rubber powder production.
In addition, recycling of waste rubber should be based on reclaimed rubber, supplemented by rubber powder, focusing on the development of odorless reclaimed rubber, special reclaimed rubber, and synthetic reclaimed rubber, with a focus on the development of reprocessing of reclaimed rubber and rubber powder. Environmental protection should be used as a hard indicator of tire production, reclaimed rubber and rubber powder production.
High Strength Steel Tie Rod are steel structural members made of carbon structural steel and alloy steel, processed by machining, heat treatment and surface anti-corrosion treatment, supplemented by adjusting sleeves, lock and joints etc. The steel tie rod are important components of steel structures for construction of giant, large span buildings and ship docks. They are mainly used for prestressed parts and large span buildings in construction projects. While the strength of the product is improved, but the plasticity index is not reduced, which satisfies the principle of using the same amount of strength in the architectural design. The tie rods, tie bars, tension rods and tension bars steel grades are specified as , grade 785, grade 830, grade 930, grade 1080 etc.
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