Auto Recovery Rapid Door
Zippered Quick door Features
Open: 1.2-2.0m/Sec
High airtight energy efficient : Zipper patented technology and curtain rail technology combines high seal ability for maximum energy efficiency
Self-healing maintenance cost savings :When the door by the impact and dislocation occurs , repeat mosaic patented technology that is deralling repair system starts automatically , without any manual and automatic reset to its original state force to effectively reduce maintenance time saving cost
High security : Curtain soft and elastic , without any load at the bottom of the door to change , to ensure that the operator in an emergency state in the collision to the door when the operation will not cause harm
Push pull dual hinge system :unmatched safety record and absolute tightness in push pull twin shaft system, loading close dependence and the curtain at the bottom of the traditional fast door to achieve , you can drive dual axis system so that the upper curtain sprocket perfect bite does not depend on the door of its own weight can be achieved fast closing , this patented technology to avoid the hard parts usage of
More than one million times the durability performance : speed doors reduce the use of materials , easy to wear , strong and flexible curtain is very durable , can withstand million of opening and closing operation ,
in the use of some products has reached 500 million times for opening and closing
The soft curtain anti-collision fast door has simple structure design, which is beneficial to stable operation, reduces the frequency of repairing and replacing wearing parts, effectively improves the durability and service life of the equipment, and the curtain can be derailed in the event of an accidental impact, and during the ascent Automatic reset, no need to manually repair and reset the whole process. Self Recovery High Speed Door, air shower door, pharmaceutical clean room door SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrs.com
As an important barium-bearing mineral, barite is widely used in petroleum and natural gas drilling mud weighting agents, various white pigments, paints, and petrochemicals, chemicals, and other petrochemical fields. In recent years, with the continuing boom in international oil and related industries, the international demand for barite has been in a high growth trend.
Barite is a non-renewable resource. China's barite total reserves of 360 million tons, ranking first in the world. According to data provided by Fujian Customs, from the end of 2005, China's existing barite resources can be exploited for only 50 to 70 years.
In order to protect this scarce resources from loss, the Chinese government has gradually increased its control over the export of barite. On January 1, 2004, the barite export tax rebate rate was lowered from 17% to 5%. On September 15, 2006, the export tax rebate for barite was lifted by 5%. However, despite this, it has not been able to curb the rapid growth of exports to barite. In 2004, 2005, and 2006, the increase in China's barite export volume still reached 10.4%, 28.5%, and 16.7%. The number of barite exports in China has been maintained at more than 3 million tons in the past two years, and the global trade volume of barite every year is about 4.5 million tons.
Tragically, the world’s first reserves have not been exchanged for China’s right to speak in the international barite market. As long as there is a demand in the international market, small workshop-type enterprises will desperately use the advanced technology and do not consider the use of advanced equipment and will not invest in technical deep processing. As a result, excessive exploitation of barite resources was exported in large quantities, but it only made a small profit. The price of barite products exported from China has remained at a level of more than 30 US dollars per ton for a long time. On the international market, the average price of high-content barium sulfate products made from deep processing of barite has reached more than 1,000 US dollars per ton. According to the latest statistics from Fujian Fuzhou Customs, China's second largest barite exporter, in the first half of this year, the province exported 236,000 tons of barite, an increase of 6.9% over the same period of last year, while the average export price was only US$38.74 per ton.
Heating devices are included on both sides of the column.
The structural design of this product is characterized by trouble-free operation up to 150,000 times per year. It has the highest practicality and the lowest maintenance cost.
Barite export is not a source of foreign exchange
Selling the country at an average price of more than 30 US dollars per ton, but let people after processing to an average of more than 1,000 US dollars per ton to resell. The Chinese barite (natural barium sulphate) resources, which are supposed to have absolute discourse power in the international market, have been transported out of the country at a low price without deep processing, and have caused serious loss of such scarce resources in China.