On-line maintenance method of coke tank cover for dry quenching
A coke tank cover and coke coke technology, which is applied in the field of CDQ equipment maintenance, can solve problems such as rotary sealing valve equipment accidents, and achieve the effects of reducing production costs, prolonging service life, and achieving significant economic benefits.
Inactive Publication Date: 2020-02-25
宣化钢铁集团有限责任公司
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to provide an online maintenance method for CDQ coke tank lids. This maintenance method can quickly repair damaged coke tank lids online, prolong the service life of coke tank lids, and at the same time solve the problem of burnt The problem that the steel plate of the tank lid entered the dry quenching furnace due to the cracking and falling off of the welding joint, causing the accident of the rotary sealing valve equipment
Method used
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Embodiment Construction
[0020] The invention relates to an on-line maintenance method for CDQ coke tank lids. The deformed coke tank lid bottom steel plate is corrected and fixed by a lead screw and then welded. The method is simple to operate, safe and reliable.
[0021] The present invention adopts following steps to carry out:
[0022] The first step is to measure the distance between the deformed steel plate at the bottom of the coke tank cover 1 and the top, so as to prepare for making the lead screw 3, the nut 4 and the backing plate 5 for tensioning.
[0023] The second step is to process and manufacture four lead screws 3 and a plurality of nuts according to the distance between the deformed steel plate at the bottom of the coke tank cover 1 and the top. The lead screws 3 are matched with the nuts, and then eight backing plates 5 with holes are processed with steel plates. , the diameter of the backing plate hole matches the diameter of the lead screw 3.
[0024] The lead screw 3 is a whole ...
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The invention provides an on-line maintenance method of a coke tank cover for dry quenching, and belongs to the technical field of maintenance methods of dry quenching equipment. The method is used for performing online maintenance on a dry quenching coke tank cover. According to a technical scheme, an electric drill is adopted to form holes at deformed positions of bottom steel plates of the coketank cover, and then form holes in the corresponding positions of the steel plates on the top of the coke tank cover; lead screws pass through the bottom steel plates and top steel plates of the coketank cover, and after pads are arranged on the two ends of each lead screw, the two ends are fastened with bolts until the deformed steel plates at the bottom of the coke tank cover are leveled by the lead screws; cracked welding seams of the bottom steel plates of the coke tank cover are welded by electric welding, then the pads are welded to the bottom steel plates of the coke tank cover by electric welding, and then the bottom surface of the coke tank cover is sprayed with refractory slurry by a slurry spraying device to repair parts from which a refractory has fallen off. The maintenancemethod has the advantages of simple operation, safety and reliability, enabling the on-line repair of the coke tank cover, greatly extending the service lifetime of the coke tank cover, reducing the production cost, and enabling significant economic benefits.
Description
technical field [0001] The invention relates to an online maintenance method for a dry quenching coke tank cover, and belongs to the technical field of dry quenching equipment maintenance methods. Background technique [0002] In the production of coke CDQ, the coke tank is the equipment used to transport the red coke released from the coke oven to the CDQ furnace. When the coke tank is filled with red coke and lifted to the top of the CDQ furnace, in order to protect the lifting device from being burned by the high temperature of the red coke, a coke tank cover is used on the top of the coke tank to cover the red coke. The structure of the coke tank cover is that the middle of the coke tank cover is a steel skeleton, and steel plates are welded on the top and bottom of the steel skeleton. Since the bottom steel plate of the coke tank cover is in direct contact with the red coke at high temperature, in order to protect the bottom steel plate from being burned out, a high te...
Claims
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Login to View More IPC IPC(8): C10B39/02C10B41/00G01B21/02
CPCC10B39/02C10B41/00G01B21/02
Inventor 郝军谢海深武建东谢相久康相国常欣田伟华王利山宁胜毕秋玉
Owner 宣化钢铁集团有限责任公司