High-temperature valve for retort furnace
A retort furnace and high temperature technology, which is applied in the field of high temperature valves for retort furnaces, can solve problems such as internal leakage, affect the normal production of retort furnaces, increase maintenance costs, etc., and achieve the effects of increasing economic benefits, simple structure, and reducing maintenance costs
Active Publication Date: 2013-07-31
FUSHUN MINING IND GROUP
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Problems solved by technology
However, since the valve body and the gate plate of this valve are closed by a wedge-shaped structure, once it is used as a retort furnace gas outlet valve, the carbon deposits generated when the hot gas passes through will accumulate on the wedge-shaped surface. The gate will be closed tightly and internal leakage will inevitably affect the normal production of the retort furnace and increase maintenance costs
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[0011] Such as figure 1 , figure 2 As shown, the present invention includes drive unit 1, valve stem 3, valve cover 5, valve body 8 made of inner and outer valve bodies 8-1, 8-2, gate plate 7 and lower sealing cover 9. The valve rod 3 connected with the gate 7 is drawn out from the top end of the valve cover 5 and the sealing device 4 , and is connected with the driving device 1 . The driving device 1 can drive the gate plate 7 to move up and down through the valve rod 3 to realize the switch. The upper and lower parts of the outer valve body 8-2 are respectively provided with a pressing device 2 for applying pressure to the gate plate 7 . The lower part of the sealing cover 9 is provided with an ash removal port 12 to clean up the scraped carbon deposits. On the inwall of bonnet 5 and valve body 8, be coated with high temperature resistant heat insulation paint 6; On gate plate 7, one side corresponding to inner valve body 8-1 is also coated with high temperature resistan...
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The invention discloses a high-temperature valve for a retort furnace, comprising a drive device, a valve rod, a valve cover, a valve body consisting of an inner valve body and an outer valve body, a flashboard with a valve hole and a lower sealing cover, wherein the valve rod connected with the flashboard stretches out of the top end of the valve cover and is connected with the drive device; theupper part and the lower part of the outer valve body are respectively provided with a compression device for applying pressure to the flashboard; and the flashboard is in a parallel board structure,and the lower end of the flashboard is provided with a blade. When the high-temperature valve is used as a gas outlet valve of a retort furnace, the flashboard with the parallel board structure can effectively reduce the aggregation of carbon deposition compared with a traditional wedge structure. When the flashboard is dropped down, the compression devices can be used for tightly compressing theflashboard on the inner valve body to scrape off the carbon deposition on the inner valve body, thereby the defects of untight flashboard closure caused by the carbon deposition, internal leakage, and the like are overcome, normal production is guaranteed, the maintenance cost is reduced, and the economic benefit is increased. After the flashboard is closed, compression force applied to the flashboard by the compression devices also can be used for tightly fitting the flashboard on the inner valve body all the time, thereby the sealing property is improved.
Description
1. Technical field [0001] The invention belongs to the technical field of valves, and in particular relates to a high-temperature valve for carbonization furnaces. 2. Background technology [0002] At present, the commonly used high-temperature valves are mainly divided into two types: water-cooled valves and water-free cooled valves. Water cooling valves have relatively high requirements on water quality, and a special water softening and supply system must be set up, which requires a relatively large investment. While the water circulation system cools the valve, it also takes away a lot of heat, resulting in heat loss. Although it has been used in retort furnaces, it is difficult to meet the work requirements for the above reasons. Although the waterless cooling valve removes the water cooling system, the cost is reduced. However, since the valve body and the gate plate of this valve are closed by a wedge-shaped structure, once it is used as a retort furnace gas outlet...
Claims
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IPC IPC(8): C10B27/06F16K3/18F16K3/30
Inventor 韩放鲍明福高健曹福东赵志敏陈胜中
Owner FUSHUN MINING IND GROUP