Energy-saving environment friendly production method of concrete lining segment

Abstract

The invention discloses an energy-saving environment friendly production method of a concrete lining segment. The energy-saving environment friendly production method comprises the following step of: carrying out dry-wet-heat curing on concrete after pouring, wherein the dry-wet-heat curing is finished in a sealed curing kiln and comprises four stages of static curing, heating, constant temperature keeping and temperature reducing. According to the energy-saving environment friendly production method of the concrete lining segment, disclosed by the invention, all procedures are connected closely and smoothly, wherein the dry-wet-heat curing directly ensures large shortening of curing time because of creation of a technical method, and compared with a traditional steam curing of keeping the constant temperature for 4h and total curing time of 8-10h, the energy-saving environment friendly production method disclosed by the invention has the advantage that the speed is largely accelerated, in addition, standing temperature reduction ensures that segment concrete is secondarily cured and is fully reduced in temperature, thus a quality defect due to an inner stress is avoided, the quality of products is improved, and good support is provided for long-term safe usage of the concrete lining segment.

Description

technical field [0001] The invention belongs to the technical field of concrete lining segment prefabrication, in particular to an energy-saving and environment-friendly production method of concrete lining segment. Background technique [0002] At present, domestic and foreign segment prefabrication technologies mainly include fixed mold method and assembly line method. [0003] The characteristics of the fixed mold method are: the position of the mold is relatively fixed; the concrete is poured by lifting equipment with a concrete hopper; the concrete is compacted by vibrating rods; Directly into the pool for maintenance or spray maintenance; daily production cycle 1-2 times. [0004] The characteristics of the assembly line method are: according to the process flow, the positions of each operation process are fixed; the mold flows regularly on the production line according to the beat to form an assembly line; concrete is poured using lifting equipment and a concrete hop...

AI Technical Summary

Problems solved by technology

①Because there is a lot of condensed water, even if the condensed water is recycled, it also absorbs heat and causes heat energy to be lost

② Due to the high humidity in the maintenance space, it has a serious impact on the corrosion of the mold, resulting in a shortened service life of the mold

③Due to the long-term high humidity and condensed water environment, the equipment and sensors in the maintenance space are affected by it, the service life is severely shortened, and failures are frequent

④Using steam curing, in the curing space, because the steam outlet is arranged as a "point port", the local temperature is high, resulting in high local temperature of the concrete segment and quality defects, that is, insufficient heating uniformity

⑤Using steam curing, the condensed water formed on the top of the curing space drops to the concrete surface of the segment, causing the concrete surface to be uneven and affecting the precision requirements for the smooth shape of the segment

⑦ Using steam curing, the humidity of the working environment is high, and the occupational health of the operators is affected

The steam curing process is mature, with a wide range of applications and low risk. Although there are some defects, it meets the needs of product production

[0007] (2) After the two methods of segment are out of the mold, they are directly put into the pool or sprayed with water for at least 7 days. The flow of water is realized by the motor, and there is a phenomenon of loss of curing water.

[0008] Due to the above problems, both production methods have disadvantages such as high energy consumption, waste of water resources, high noise, large floor space, insufficient energy conservation and environmental protection, etc.