Integral casting pressure ring for closed submerged arc furnace
A submerged arc furnace and pressure ring technology, applied in electric heating devices, heating by discharge, electrical components, etc., can solve the problems of difficult to achieve compaction, hidden dangers of safe production, and oxidation of steel plate surfaces.
Inactive Publication Date: 2020-06-19
姚亮 +1
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Problems solved by technology
At the same time, due to the serious oxidation of the surface of the steel plate eroded by the high-temperature furnace gas, it is difficult to achieve compactness when welding again. Although the water leakage is stopped after welding, the problems of water seepage and deformation are often difficult to eliminate, which has buried a lot for safe production. Hidden danger
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[0022] A pressure ring for a submerged arc furnace is composed of a left half ring 1 and a right half ring 10 hinged through 6-1, 6-2, 6-3 to form a complete ring, and the left and right rings are shells, which are respectively used in manufacturing The liquid metal is cast into an integral half ring.
[0023] The left half ring is provided with some pieces of jacking device 5, and the outer cylinder 5-5 of the jacking device is all cast into one with the half ring body 1. The tightening device 5 is coordinated by the lead screw top 5-4 and the screw nut 5-1. During work, the screw top can be rotated to complete the tightening operation of the copper jaw plate 2. Block cover 5-2 prevents screw nut from withdrawing from, and for preventing screw nut from rotating simultaneously with the top of the leading screw during work, anti-rotation pin 5-3 is provided with rotation in case of screw nut.
[0024] The right half-ring is provided with a plurality of jacking devices 11, and ...
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The invention relates to a pressure ring for a submerged arc furnace. The pressure ring is integrally cast by adopting a casting method, so that the defects that the pressure ring has too many weld joints, dead angles cannot be welded, welding stress is difficult to eliminate, the pressure ring is extremely easy to deform during use, and weld joint cracking and water leakage are difficult to repair are overcome. The hydraulic cylinder body and the pressure ring body in the jacking device are cast into a whole, so that the welding deformation probability is eliminated, the hydraulic transmission precision is improved, and the leakage problem of the hydraulic cylinder is reduced. All pipelines of hydraulic oil are arranged in a cooling water cavity of the pressure ring in advance through animbedding method, the oil cooling problem is solved, the hydraulic transmission reliability is improved, and the effect which cannot be achieved by welding the pressure ring is reflected. According tothe invention, a plurality of defects exposed during the use of the pressure ring welded by the steel plate are fundamentally solved, and a new way is added for updating parts of the submerged arc furnace and improving the use efficiency.
Description
technical field [0001] The invention relates to the technical field of metallurgy and chemical submerged arc furnace manufacturing. Background technique [0002] The pressure ring is a part of the submerged arc furnace. Its function is to press the conductive copper jaw plate attached to the graphite electrode, so that it can continuously provide power to the graphite electrode, so as to ensure that the smelting operation of the submerged arc furnace can continue to operate normally. The shape of the pressure ring is a ring-shaped shell. During operation, circulating cooling water needs to be passed inside to avoid excessive temperature from affecting its mechanical strength and performance, so as to prolong its service life and reduce production costs. [0003] The existing pressure ring is formed by forming and welding a plurality of steel plates, and is a closed cavity structure. When in use, the cavity is filled with cooling water, and the purpose of cooling is achieved...
Claims
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Login to View More IPC IPC(8): H05B7/10H05B7/12
CPCH05B7/10H05B7/12
Inventor 姚亮姚会元
Owner 姚亮