The newly added metallurgical industry includes metal mineral smelting and calendering related activities, including: ferrous metal, non-ferrous metals, gold smelting production and processing activities, and machinery manufacturing includes a variety of power machinery, metallurgical mining machinery, transport machinery , agricultural machinery, tools, instruments, instruments, special equipment, large and medium-sized ships, petroleum refining equipment, etc.
The three types of newly added companies are all based on actual operating income for the above years, and are extracted on an average month-by-month basis. The extraction rate of metallurgical enterprises ranges from 3% of operating income to less than 10 million yuan to more than 10 billion yuan in operating income. The ratio of 0.05% is different, while the extraction rate of mechanical manufacturing enterprises gradually decreases from 2% of the operating income of less than 10 million yuan to 0.05% of the operating income of more than 5 billion yuan.
In addition, the cost extraction standards for many industries have also been appropriately improved. Among them, the coal production enterprises canceled the difference between the original large-scale enterprises and small-scale enterprises. The coal and rock (gas) and gas (carbon dioxide) prominent mines and high gas mines were all raised from the original 8 yuan and 10 yuan to 30 yuan per ton of coal. The low gas mine increased from 5 yuan to 15 yuan per ton of coal, and the open pit increased from 3 yuan per ton of coal to 5 yuan.
Ethylene Cracking Furnace Anchor
Anchors are mostly used as fixtures for integral linings (castable, plastic and sprayable linings). Refractory brick linings also use anchors, but they are not used in many occasions. Metal anchors are usually used to support and fix thin or heat-insulating integral linings, such as chimney linings, wear-resistant linings of petrochemical catalytic cracking reactors (usually tortoise shell mesh anchors), integral jet metallurgy The lining of the spray gun, the overall lining of the immersion pipe of the DH and RH vacuum degassing devices, the lining of the rotary kiln discharge day, the feeding port, etc. Metal anchors are mostly used to fix linings with a long-term use temperature below 1200 °C, or short-term use temperature above 1200 °C that can be used intermittently. Ceramic anchors are usually used to fix thicker (greater than 200mm) integral linings and are characterized by:
(1) It can withstand higher operating temperatures, and is generally used in the lining of kilns that are used for a long time above 1200 °C;
(2) It can withstand the erosion and corrosion of corrosive atmosphere;
(3) It can be extended to the working surface to reduce the peeling of the overall lining;
(4) Compared with metal anchors, the contact area with the refractory lining is large, so it has a greater supporting capacity;
(5) The thermal expansion coefficient is equivalent to that of the overall refractory material, which can eliminate the cracking or peeling of the lining due to thermal expansion mismatch
Ethylene Cracking Furnace Anchor,Corbel Anchor,601 Inconel Refractory Anchor,310 Stainless Steel Refractory Anchor
Puyu kiln technology (jiangsu) CO.,LTD , https://www.anchorpy.com