Heat preservation transformation technology of clay brick wall body

Abstract

The invention discloses a heat preservation transformation technology of a clay brick wall body. The heat preservation transformation technology includes the following steps that firstly, downward digging is performed along the outer wall face of the clay brick wall body, the foundation of the clay brick wall body is exposed, and the outer wall face of the clay brick wall body is swept; secondly, drilling is performed on the outer wall face, and an expansion screw is installed; thirdly, a wire gauze is hung on the expansion screw which is firmly fixed, and the wire gauze and the expansion screw are bound and firmly fixed respectively; fourthly, a steel formwork is supported, and the distance between the steel formwork and the outer wall face is within 15 cm-25 cm; fifthly, foamed cement slurry is pumped and cast into the steel formwork multiple times; sixthly, a heat preservation layer is formed by curing the foamed cement slurry under the normal temperature, and after the foamed cement slurry is cured, the steel formwork is detached. The heat preservation transformation technology has the advantages that an existing clay brick wall body is transformed, the technology is simple, investment is little, the heat preservation layer formed by foamed cement is added, the heat preservation performance is greatly improved, and conditions for planting high-temperature crops with the higher additional value are achieved, and therefore the yield and benefits are greatly improved.

Description

technical field [0001] The invention relates to a clay brick wall thermal insulation renovation process, which is mainly used for thermal insulation and reinforcement reconstruction of the clay brick wall of the existing solar greenhouse to improve its thermal insulation performance. Background technique [0002] The solar greenhouse has three walls in the north, east and west, and a skeleton covered with plastic film in the south. It is a production facility that relies on solar radiation as a heat source. [0003] The walls of common solar greenhouses are divided into two types. The first type is earth rammed walls, that is, soil is dug 0.5m-1m from the ground of the greenhouse and stacked on the north, east, and west sides. After compaction, 2-5 The meter-thick wall is used as the insulation enclosure wall of the greenhouse. The thermal insulation performance of the wall is average, and there are three serious defects: 1. The wall occupies a large amount of cultivated la...

AI Technical Summary

Problems solved by technology

The thermal insulation performance of the wall is average, and there are three serious defects: 1. The wall occupies a large amount of cultivated land, and the land utilization rate is low; 2. Because the earth rammed wall is not resistant to wind and rain erosion, the overall service life of the greenhouse is short; 3. It will be located in the soil The 0.5-1 meter surface layer of mellow soil with high soil fertility and high content of beneficial microorganisms such as nitrifying bacteria is dug out from the ground and used as the raw material for the earth rammed wall, which seriously damages the soil environment and is not conducive to the growth of plants in the greenhouse; 4. After the soil is taken, a sunken planting groove is formed in the shed, which is prone to waterlogging in rainy seasons, and there are hidden dangers in production

Compared with the above-mentioned rammed earth wall, the wall body is durable and has a long service life, but there are three serious problems: 1. The clay brick itself needs to be fired with soil, which not only causes a large amount of energy waste but also seriously damages the natural environment. It has been banned by the state in the construction industry; 2. Clay bricks have a high thermal conductivity. Although the polystyrene board lined with a thickness of 10cm makes up for this deficiency, the overall thermal insulation performance of the wall is still very low, which cannot meet the extreme cold weather in winter. Under the requirement of the minimum temperature for plant growth, it is necessary to adopt heating means such as installing a coal-fired furnace, which greatly increases the labor intensity and the operating cost of planting in winter; 3. The construction efficiency of clay brick walls is low, the cycle is long, and the use of labor is more , increasing the capital investment for one-time construction of greenhouses

Due to the huge amount of clay brick wall greenhouses, demolishing and rebuilding them not only requires a huge investment, but also wastes and damages resources and the environment.

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