Continuous production process for polyurethane thermal insulation boards

Abstract

The invention relates to a continuous production process for polyurethane thermal insulation boards, belonging to a new process of continuous production of polyurethane thermal insulation boards. The invention aims to provide a continuous production process for continuously producing polyurethane energy-saving boards and is characterized by comprising the process routes of laminating dies on the inner wall of a frame, preinstalling lower die cement-fibre boards, preinstalling robot upper die cement-fibre boards, casting preparation, robot casting, compounding dies, heating curing, die sinking, taking pieces, cleaning dies, carrying down and circulating. The invention has the advantages that firstly, the operating mode of the continuous product line of the polyurethane thermal insulation boards is continuous production so that the production efficiency is greatly improved, the demands of domestic construction energy-saving markets can be satisfied, and the construction energy-saving project of China are greatly promoted; secondly, the continuous production process has good energy-saving and environment-protection effect, thereby making a contribution to establishing a resource saving and environment-friendly society; and thirdly, the process has stable and reliable production, guaranteed quality, high production capacity, high technical content, high degree of automation, low labor intensity and controllable quality.

Description

technical field [0001] The invention belongs to a new technology for continuous production of polyurethane thermal insulation boards. Background technique [0002] Building energy conservation plays a pivotal role in energy-saving system engineering, and has been listed as one of the top ten energy-saving projects in the country. According to expert estimates, the heat (cold) lost by the building envelope accounts for more than 50% of the total building loss, and the walls in the envelope account for 2 / 3. Therefore, the insulation of the walls should be an important part of building energy conservation. link. Polyurethane occupies a certain market in the field of building energy conservation. Due to its excellent physical properties and special processing and application characteristics, people have placed high expectations on its application in building energy conservation. Among them, the most eye-catching composite board is a composite board with polyurethane rigid foam...

AI Technical Summary

Problems solved by technology

At present, only intermittent production of polyurethane energy-saving and thermal insulation composite panels is used in China, and the production volume is small, which is far from meeting the needs of my country's building energy-saving market.

The domestic production of polyurethane energy-saving and thermal insulation composite boards currently only has intermittent production processes, which are in the form of high-pressure foaming machines equipped with 1-4 laminating machines. The main problems are: low production capacity, with an annual production capacity of only 100,000 m 2 ~400,000m 2 , the configuration of a large laminating machine is only 500,000 m 2 Production capacity; more labor, high labor intensity, low degree of automation, difficult quality control

Invented and pioneered a composite board production line using continuous production technology with polyurethane rigid foam as the core material and one side covered with cement fiber surface layer. According to search and investigation, there is no precedent in foreign countries

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