Assembling and welding process for taphole system of bottom-blown smelting furnace
A technology for slag outlet and smelting furnace, which is applied in the direction of furnaces, auxiliary devices, furnace components, etc., which can solve the problems of prolonging the installation period and inability to guarantee the quality, and achieve the effect of excellent quality and shortening the installation period
Active Publication Date: 2017-11-14
CITIC HEAVY INDUSTRIES CO LTD
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Problems solved by technology
The furnace body of the bottom-blowing smelting furnace is composed of a section of cylinder, and a spherical tank-shaped head is installed at both ends of the cylinder. The total weight of a general bottom-blowing smelting furnace is 1,000 tons, and the furnace shell weighs more than 200 tons. Large-scale Lifting, transportation and processing equipment, due to the limited operating conditions on site, if the installation method is improper, the installation period will be greatly extended, and the quality cannot be guaranteed
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[0030] The present invention will be further described below with reference to specific embodiments, so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.
[0031] The welding process of the slag outlet system of the bottom blowing smelting furnace. The slag outlet system includes a slag outlet, a chute and a bracket. The slag outlet is a square tube-shaped structure composed of four square plates, and the bracket includes two parallel settings. The inclined plate and the cover plate sealed on the upper part of the two inclined plates, the chute is arranged on the cover plate, including the following steps:
[0032] Step 1: Cut two square holes at one end of the furnace body of the bottom blowing smelting furnace for assembling the high slag opening and the low slag opening in the slag outlet system, and set a rolling ring on the outer circumference of the furnace body,...
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The invention discloses an assembling and welding process for a taphole system of a bottom-blown smelting furnace. The assembling and welding process comprises the following steps: selecting the spatial position where a main body is to be assembled, moving the main body to an accurate spatial position, deciding the assembling and adjusting skills of the taphole, and designing the assembling and welding sequence of the taphole system. According to the assembling and welding process for the taphole system of the bottom-blown smelting furnace, the ideal assembling position of the taphole is determined by lifting the furnace body preferentially, then the datum line for taphole installation is determined by rotating the furnace body conveniently, and the taphole system is installed according to the sequence that a chute handle and body is installed, the chute handle and body is assembled in a tried manner, the taphole is welded, the chute handle and body reset, and a cover plate and two inclined plates are welded in a symmetric manner, the installation period is greatly shortened, and the quality is excellent.
Description
technical field [0001] The invention relates to the technical field of non-ferrous metal smelting, in particular to a welding process for a slag outlet system of a bottom blowing smelting furnace. Background technique [0002] Bottom blowing smelting furnace is the key equipment in the non-ferrous metal smelting industry. It is a substitute for the high-energy and high-speed smelting furnace that undertakes the initial smelting task of lead and other metals. It has the characteristics of saving investment, high recovery rate and low energy consumption. Because of its structural form And product characteristics, put forward higher requirements for the manufacturing accuracy and installation accuracy of the furnace body. The furnace body of the bottom blowing smelting furnace is composed of a cylinder and a spherical tank type head is installed at both ends of the cylinder. The total weight of the general bottom blowing smelting furnace is 1,000 tons, and the furnace shell wei...
Claims
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IPC IPC(8): B23K31/02B23K37/00C22B5/12F27D3/15
Inventor 卢雷胜张磊磊张万伟姬伟伟
Owner CITIC HEAVY INDUSTRIES CO LTD