Electric mold lifting construction method of chimney

Abstract

The invention discloses an electric mold lifting construction method of a chimney. The method includes: bents formed by circumferential rods and vertical rods are fixedly connected onto horizontal pre-inserted rods and vertical pre-inserted rods on two side walls and the bottom wall of a tunnel opening, lead screw through pipes are fixed on the bents so as to enable climbing boots to be capable of being installed at the position of the tunnel opening, so that an electric mold lifting device can also be assembled on a bottom portion with the tunnel opening of the chimney cylinder wall, and electric mold lifting construction can be performed on the portion of the bottom of the chimney corresponding to the tunnel opening. While in the prior art, the electric mold lifting device can only be assembled at a high-altitude position about 30 meters away from the ground above the tunnel opening. Therefore, the electric mold lifting construction method of the chimney does not need to use a large amount of bents and a crane with hoisting weight larger than 100 tons for hoisting, can save a lot of manual work, lowers operation risks and construction difficulty, and reduces construction period and construction cost.

Description

technical field [0001] The invention relates to a construction method for electric formwork lifting construction at the bottom of a chimney. Background technique [0002] The chimney tube wall electric formwork lifting construction technology is a relatively advanced chimney construction technology in chimney construction at present. During the construction process, the climbing boots fixed on the poured concrete tube wall (the climbing boots are fixed on the tube wall anchor bolts) are used as the The fulcrum, driven by the electric cycloid reducer, gradually drives the electric mold lifting device attached to the wall of the chimney to rise gradually with the increase of the chimney construction height, so that the operation installed on it can be realized through the electric mold lifting device Vertical movement of the frame until the whole system rises to the design height of the chimney. [0003] And as figure 1 As shown, according to the characteristics of the elect...

AI Technical Summary

Problems solved by technology

[0003] And as figure 1 As shown, according to the characteristics of the electric formwork lifting construction technology, when the chimney wall is constructed in sections, it is necessary to reserve a wall screw hole 101 on the wall 100 of every 1.5m saved (see figure 1 ), used to fix the climbing boots as the climbing fulcrum of the electric mold lifting device, however, due to the part of the bottom of the chimney wall (about 0-50 meters above the ground), there are reserved openings such as installation holes, door openings, and flue openings , the reserved hole occupies a large area of ​​the side wall of the chimney in this area, especially the flue opening occupies about one-third of the area of ​​the side wall of the chimney in this area, resulting in a large number of climbing boots that cannot be installed, and the wall below the flue opening cannot be installed The electric mold lifting device is used for electric mold lifting construction. Therefore, in the past construction, the wall below the flue mouth can only be erected by scaffolding, and the construction is carried out according to the conventional mold turning method. 200 to set up a full hall of scaffolding, and 300 to erect double-row scaffolding on the outer side of the tube wall. After the construction of the tube wall corresponding to the flue opening is completed, the electric mold lifting device is assembled in the area above the flue opening, and then the area above the flue opening is electrically lifted. Construction, but the assembly height at this time is generally above 30 meters, which has the following disadvantages: 1. It requires a lot of bending materials, and at the same time, it takes a lot of labor to install and disassemble the bending; 2. The assembly position is high (generally above 30 meters) , the operation risk is high, and the construction is difficult; 3. It is necessary to use a crane with a lifting weight of more than 100 tons for hoisting, and this crane is difficult to rent and expensive; 4. The construction period is long

Images