Asbestos cement and production process thereof

Abstract

The invention discloses asbestos cement which is prepared from the following raw materials in parts by weight: 30 to 40 parts of asbestos wool, 100 to 110 parts of Portland cement, 1200 to 1300 parts of clear water, 0.3 to 0.8 part of a defoaming agent and 15 to 25 parts of river sand aggregate; according to the asbestos cement, firstly, the defoaming agent and other auxiliary materials are added, the defoaming agent and asbestos wool are mixed in a container so that the asbestos wool can be sufficiently loosened and completely soaked, the defoaming agent plays a role in foam inhibition and foam breaking so as to facilitate smooth subsequent stirring and mixing procedures, 1200 parts of clear water with the water temperature of 20-30 DEG C are divided into three parts according to the proportion of 590 parts: 590 parts: 20 parts, the asbestos wool is soaked and bubbles are removed through two pieces of 590 parts of clear water, then harmful dust and impurities are filtered, 1200 parts of clear water are divided into three parts, the three parts of clear water are stored by three different stirring containers, the containers can be replaced to screen residues and harmful substances left in the previous stirring and mixing process, and the continuous residue in the formed asbestos cement is avoided.

Description

technical field [0001] The invention relates to the technical field of cement production, relates to an asbestos cement, in particular to an asbestos cement and a production process thereof. Background technique [0002] Asbestos cement is mixed with asbestos wool during cement processing. Asbestos has good tensile strength, good heat insulation and corrosion resistance, so that asbestos cement products become one of the commonly used materials in the construction industry; [0003] However, the existing asbestos cement uses cement as the main raw material, and adds asbestos wool, clear water and other raw materials, and is made by stirring, dehydrating, drying and other processes. Because of its high cost, it is mostly used in hotels, hotels, villas, etc. For high-end facilities and construction, however, the existing asbestos cement production process is to soak and stir the asbestos wool separately to make it diffuse and then mix other materials with the asbestos wool, bu...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a kind of asbestos cement, which solves the problem that the existing asbestos cement uses cement as the main raw material, and adds asbestos wool, clear water and other raw materials, and is made through processes such as stirring, dehydration, and drying. It is mostly used in high-end facilities and buildings such as hotels, hotels, and villas. However, the existing asbestos cement production process is to soak and stir the asbestos wool separately to make it diffuse and then mix other materials with asbestos wool. Mixing and stirring, but a large number of air bubbles are produced during the mixing process of asbestos wool, which affects the mixing effect of asbestos wool; secondly, when the existing asbestos cement is produced, a large amount of harmful dust contained in asbestos cannot be removed, and then in the production and use of asbestos cement all can affect people's health; secondly, existing asbestos cement is in production, usually only has a stirring container, causes a large amount of residue, harmful substance and can't handle in time, lacks the technical problem of effective filtration process; In the present invention, with traditional asbestos cement Compared with the asbestos cement in the present invention, cement is added with defoamer and other auxiliary materials, and the defoamer is mixed with asbestos velvet and inside the container, so that the asbestos velvet can wait until it is fully loosened and completely soaked, and the defoamer can play a role Foam suppression and foam breaking, which facilitates the subsequent stirring and mixing process smoothly; divide 1200 parts of water with a water temperature of 20-30 ℃ into three parts, the ratio is 590 parts: 590 parts: 20 parts, and put 30 parts of asbestos wool into Stir with 590 parts of clean water for 20-25 minutes. After the asbestos wool is completely soaked, take it out and stir it with another 590 parts of clean water for 10-15 minutes. Then pass the stirred asbestos wool through the dehydration tank High-temperature dehydration treatment, the temperature of the dehydration box is 250-300°C, and the drying time is 5-10min. The asbestos wool is soaked through two 590 parts of clean water to remove air bubbles, and then the harmful dust and impurities are filtered to make The harmfulness of asbestos is greatly reduced, which protects the health of producers and users; 1200 parts of water are divided into three parts, and the three parts of water are stored in three different mixing containers, and the first container is used first. Start with 30 parts of asbestos wool and 590 parts of water, then add 0.3 parts of defoamer 10-15 minutes after the stirring of 30 parts of asbestos wool and 590 parts of water, then put the soaked asbestos wool into the second container and stir. The dehydrated asbestos wool after stirring is put into the third container, put 30 parts of asbestos wool into 20 parts of clear water, and pour 100 parts of portland cement and 15 parts of river sand aggregate at the same time for mixing and stirring to make it fully stirred Mix it into a paste, so that the residue and harmful substances left in the previous mixing process can be screened to prevent them from remaining in the formed asbestos cement