Manufacturing and installing method for upper cone on dry quenching furnace shell

Abstract

The invention discloses a manufacturing and installing method for an upper cone on a dry quenching furnace shell. The method includes the following steps that the upper cone on the dry quenching furnace shell is set out into a fan-shaped sample plate, and the outline of the fan-shaped sample plate is drawn on a manufacturing plane according to the practical proportion; a steel plate is fully laid on the outline of the whole fan-shaped sample plate, and a fan-shaped steel plate is formed in a welding mode. Four lifting lugs are arranged on the fan-shaped steel plate, the two middle lifting lugs are connected with a crane lifting hook through steel wire ropes, and the lifting lugs on the two sides are connected with the crane lifting hook through chain blocks and steel wire ropes. After the fan-shaped steel plate is lifted through the crane, three lifting lugs are arranged on the inner side of the fan-shaped steel plate and adjust contracting of the lower end of the fan-shaped steel plate through pulleys, chain blocks and steel wire ropes, and a conical steel plate is formed. The conical steel plate is welded to be manufactured into the upper cone of the dry quenching furnace shell, the upper cone of the dry quenching furnace shell is lifted and is in direct butt joint with the dry quenching furnace shell, and installation is completed. According to the manufacturing and installing method for the upper cone on the dry quenching furnace shell, the upper cone of the dry quenching furnace shell can be integrally spliced on the ground to be used, a temporary platform does not need to be erected, and time, labor and materials are saved.

Description

technical field [0001] The invention relates to a method for manufacturing and installing a steel structure, in particular to a method for manufacturing and installing a cone on a dry quenching coke oven shell. Background technique [0002] The CDQ coke oven shell is a vertical tank with a circular cross-section. The shell is made of steel plate and section steel. The middle and upper parts are in the shape of a cone, and the rest are in the shape of a straight cylinder. The existing method of manufacturing and installing the cone-shaped furnace shell is usually divided into three to four circles according to the rolling capacity of the plate rolling machine and the width of the steel plate on site. Other furnace shell docking. With this construction method, the loss of the steel plate is large (the loss is 7% according to the drawing), and there are many splicing welds; Most of the welding work is done at high altitude, which has certain potential safety hazards and has a...

AI Technical Summary

Problems solved by technology

With this construction method, the loss of the steel plate is large (the loss is 7% according to the drawing), and there are many splicing welds; Most of the welding work is done at high altitude, which has certain potential safety hazards and has a great impact on the construction progress of the entire upper cone

Therefore, we urgently need a new method of making and installing the upper cone of the CDQ coke oven shell to solve the large loss of steel plates and improve the construction progress.

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