Ground assembly and installation method for air box and ash discharge pipes of chain grate

Abstract

The invention discloses a ground assembly and installation method for an air box and ash discharge pipes of a chain grate. The ground assembly and installation method is characterized by comprising the steps that a lifting appliance is manufactured and bolt holes are opened according to the design sizes of flanges of the ash discharge pipes; a platform is arranged, and an air box body is invertedon the platform with a large opening facing downwards; the two horizontally placed ash discharge pipes are connected with the lifting appliance on the ground; the lifting appliance and the two ash discharge pipes are erected and lifted, and the ash discharge pipes are in butt joint with connecting ports of the inverted air box; after the butt joint of the connecting ports, the stressed points of the connecting ports are firmly welded through electric welding, the lifting appliance is dismantled, and then the butt joint of next group of ash discharge pipes is carried out; and after the connecting ports are fully welded, the air box and the ash discharge pipes which are connected together are turned over and lifted to the chain grate for installation in place. According to the ground assembly and installation method, the installation precision and efficiency of the air box and ash discharge pipes of the chain grate can be improved, the operability of the method is high, channel steel formanufacturing the lifting appliance is easy to find, used inverted chains are common tools, the flanges do not need to be measured by a steel ruler and a level gauge, the butt joint is in place in one step, and the method is convenient and accurate.

Description

technical field [0001] The invention relates to the field of installation work of electromechanical equipment, in particular to a ground pairing installation method of a grate wind box ash discharge pipe. Background technique [0002] The air box of the chain grate machine is located under the conveying chain grate, and the opening below the bellows box is connected with the ash discharge pipe. Because they cannot be transported as a whole, the bellows and ash discharge pipe often need to be welded at the construction site. The ash unloading pipe has a figure-eight symmetrical structure. When installing, ensure that the center distance between the lower openings of a pair of ash unloading pipes reaches the design size, and the lower flange is horizontal, so as to connect the double-layer ash unloading valve and the Y-shaped slide pipe to the bellows. The upper cover of the belt conveyor directly below. Since the ash discharge pipes are in the suspended state when they are ...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the angle and height cannot be accurately controlled when the bellows ash discharge pipe and the bellows are butt-welded in the air, resulting in the uneven and left-right asymmetry of the ash discharge valve and the chute below the ash discharge pipe after installation. Realize batch pairing and modular installation of bellows ash discharge pipe and bellows

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