High-pressure adsorption production line for inorganic composite polyphenyl A-grade insulation board

Abstract

The invention relates to the technical field of insulation board production equipment, in particular to a high-pressure adsorption production line for an inorganic composite polyphenyl A-grade insulation board. The high-pressure adsorption production line comprises a feeding mechanism, a high-pressure adsorption equipment main machine, a discharging mechanism, an unloading mechanism and a high-pressure adsorption recovery system. The high-pressure adsorption equipment main machine comprises a rack, a conveying belt mounted in the rack, a driving mechanism for driving the conveying belt to operate circularly, an adsorption tank mechanism, a slurry surface distribution and recovery system and a cleaning system. The adsorption tank mechanism comprises an adsorption tank, a partitioning isolation frame for equally dividing an inner cavity of the adsorption tank into a plurality of independent adsorption areas, and a plurality of vacuum high-pressure adsorption pipeline sets. The high-pressure adsorption recovery system comprises two adsorption recovery tanks, a slurry recovery pump and a vacuum adsorption pump. The inorganic composite polyphenyl A-grade insulation board produced through the high-pressure adsorption production line is good in uniformity degree and consistent in apparent density, and the product performance such as the heat conductivity coefficient, the heat value, the tensile strength and the compressive strength can all reach the standard.

Description

technical field [0001] The invention relates to the technical field of insulation board production equipment, in particular to a high-pressure adsorption production line for inorganic composite polystyrene A-grade insulation boards. Background technique [0002] In the industry standard "JG / T536-2017" of inorganic composite polystyrene grade A insulation board, the main index requirements for inorganic composite polystyrene grade A insulation board: ①The combustion performance grade is A2 grade calorific value≦3MJ; ②The thermal conductivity is divided into 050 Grade (≦0.050W / (m*k)) and Grade 060 (>0.050W / (m*k) and≦0.060W / (m*k)); ③Tensile strength perpendicular to the direction of the board surface: Grade 050 ≧0.10MPa, 060 grade is ≧0.12; ④ Compressive strength: 050 grade is ≧0.15MPa, 060 grade is ≧0.2MPa; ⑤ Volume water absorption ≦10%. [0003] Adsorption infiltration is currently the most commonly used production process for inorganic composite polyphenylene A-grade in...

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Problems solved by technology

[0004] 1. The adsorption vacuum pressure of the low-pressure adsorption and permeation production line is 0.01-0.02MPa. Because the adsorption tank does not distinguish between each area, it often leads to poor adsorption uniformity of the slurry. The corners far from the center of the adsorption pipeline will Insufficient slurry penetration due to low suction, and even worse adsorption and penetration of slurry when there is air leakage at the corners, which eventually leads to poor uniformity inside the substrate of the slurry script, and the produced inorganic composite polystyrene A-grade insulation board A good mesh structure cannot be formed inside the product, and the calorific value cannot meet the standard

[0005] 2. During the production process of Class A insulation board, some slurry will be recovered together with the adsorbed gas, but because only a single adsorption recovery tank is installed in the low-pressure adsorption and permeation production line, the recovered slurry cannot be completely precipitated and recovered, resulting in slurry The material enters the vacuum adsorption pump together with the adsorption gas, causing damage to the vacuum adsorption pump.

The single-drive motor transmission can barely work on the low-pressure adsorption equipment (vacuum adsorption force <0.02MPa), but the low-pressure adsorption and permeation production line cannot produce inorganic composite polyphenylene grade A that meets the requirements of the industry standard "JG / T536-2017" Insulation board qualified products must adopt high-pressure adsorption equipment with vacuum adsorption force ≥ 0.04MPa to ensure that the slurry inside the inorganic composite polystyrene A-grade insulation board forms a uniform network structure with increased density to block flames and reduce calorific value , Increase tensile and compressive strength, reduce water absorption

Due to the increase of the adsorption force of the high-pressure adsorption equipment, the transportation resistance of the transmission belt is greater than the friction force between the driving wheel and the transmission belt, and the transmission is stopped. There will be slippage between the transmission belt and the driving wheel, and the load on the motor will increase, causing damage to the motor. Burn the motor coil, cause voltage instability, and cause a series of impacts on other surrounding electrical equipment

[0007] 4. The width of the baffle plate and the height of the top rubber scraping device in the low-pressure adsorption and permeation production line are fixed, and cannot be adjusted according to the width requirements of the inorganic composite polystyrene A-grade insulation board, and can only produce fixed width 1200mm Inorganic composite polystyrene grade A insulation board seriously does not meet the actual production needs and actual conditions; moreover, according to actual needs, the thickness range of inorganic composite polystyrene grade A insulation board is 30-150mm, but the height of the top rubber scraping device It is fixed. When producing insulation boards with a thickness of 30mm, the top rubber scraping device is too high, and the rubber scraper cannot be scraped cleanly. When producing insulation boards with a thickness of 150mm, the top rubber scraping device is too low, and the equipment cannot operate , it is impossible to complete the production

However, the existing low-pressure adsorption permeation production line is not equipped with a cleaning system, and the surface of the equipment is only cleaned manually by spraying water from a water pipe.

Manual water spray cleaning with water pipes is not only laborious and laborious, but also not in place. Moreover, manual cleaning can barely clean the visible parts of the equipment surface, but for the corners of the equipment, the adsorption tank, the surface distribution double-tube recovery adsorption pipeline inner wall, Scraping the inner wall of the single-pipe recovery pipeline on the top surface and the inner wall of the slurry recovery and adsorption pipeline on the side are often not cleaned or cannot be cleaned, which seriously affects the working effect of the equipment, making the equipment unable to achieve the design effect, or even scrapped

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