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Vacuum extrusion process and equipment of fiber reinforced cement board

A technology of fiber cement board and production equipment, which is applied in the direction of stone processing equipment, ceramic molding machine, sustainable waste treatment, etc., can solve the problem that there is no fiber cement production line, the strength of fiber cement board cannot meet the actual needs, and the hollow and hollow can not be produced at the same time Solid fiber cement board and other issues, to achieve the effect of good dimensional stability, dense texture, good sound insulation

Inactive Publication Date: 2007-12-26
BEI JING NEW BUILDING MATERIALGRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] In the prior art, the multi-screw extrusion process can only produce hollow fiber cement boards, and the screw only plays the role of mixing and feeding; therefore, the above method has the disadvantage that the same equipment cannot produce hollow and solid fiber cement boards at the same time, and Due to the limitations of its preparation method and equipment, the strength of the obtained fiber cement board cannot meet the actual needs; in addition, so far, there is no report of a fully automated fiber cement production line

Method used

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  • Vacuum extrusion process and equipment of fiber reinforced cement board
  • Vacuum extrusion process and equipment of fiber reinforced cement board
  • Vacuum extrusion process and equipment of fiber reinforced cement board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] From the storage tank located at the upper part of the stirring kneader, the percentage by weight is 23% cement, 9.5% 100-mesh silica fume with a content greater than 80%, particle size 0.16-1.25mm, and 4% perlite with a bulk density of 200g / cm3, two grades 14% of fly ash, 8% of 100 mesh attapulgite, 1% of polyester fiber, 4% of paper fiber, 1.5% of methyl cellulose, and 35% of water are measured and added to stirring kneader 300, and the materials are fully stirred and kneaded , the material is fed from the discharge port 10 below to the conveyor belt 11, and is transported to the feed port 301 of the twin-screw feeder through the pulley conveyor belt 11, and the twin-screw feeder 12 rotates and feeds the material to the vacuum chamber 13, and the side wall of the vacuum chamber The slicer 15 on the top slices the material to facilitate the extraction of the air in the material, and the material is dialed into the single-screw extruder 17 through the feeder 16. There is...

Embodiment 2-6

[0042] Basically adopt the technique of embodiment 1, raw material formula is shown in Table 1:

[0043]

[0044] Zeolite

Embodiment 7

[0046] The equipment and production process used in the present invention include: the fiber cement mixing and kneading machine 300 consists of an outer wall 1, a rotating disk inner wall 2, a baffle plate 3, a dispersing mixer 4, a star mixer 5, a kneading blade 6, a twin screw 7, The agitator feeding port 8 is composed of a transmission device; the transmission device includes: a motor 101 and a motor 102, the motor 101 is connected to the star agitator through gears 108, 100, connected to the ring gear 104 through 106, 103, and the ring gear is connected to the stirring The bottom of the inner wall 2 of the rotating disk of the mixer of the kneader is connected, so that the motor 101 can simultaneously drive the star mixer 5 and the inner wall 2 of the rotating disk to rotate; And screw rod 7 is positioned at the outer wall 40 of the kneader of agitating kneader, and the outer wall 40 of agitating kneader is positioned at the bottom of the outer wall 1 of agitating kneader, ...

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Abstract

The technological process for producing fibre cement board by adopting vacuum extrusion method incldues the following steps: metering all the raw materials of cement, silicon powder, light aggregate, fibre, viscosity increaser and water, adding them into stirring kneader to make kneading and mixing, then feeding the obtained mixed material into high-pressure extruder to implement vacuum extrusion, embossing and cutting board blank, piling to make precuring, depiling, high-pressure steaming-curing, drying to obtain white board, fine processing edge and surface, coating and packaging so as to obtain the invented finished product. Its equipment can be used for preparing hollow and solid fiber cement board, its production process is full automation, and its product quality is good.

Description

technical field [0001] The invention relates to equipment for fiber cement boards, in particular to a complete set of production equipment for producing fiber cement boards by vacuum extrusion. Background technique [0002] Fiber cement board is a new type of exterior wall panel. Compared with various existing exterior wall panels, it has the characteristics of high strength and good decorative effect. In some cases, it does not need post-treatment such as spraying and redecoration. market prospects. There are two main products of fiber cement, one is fiber cement hollow board, and the other is fiber cement solid board, which require different processes and equipment for preparation. [0003] At present, the production of fiber cement hollow slabs generally adopts a multi-screw extrusion process, that is, after the cement and light aggregate are mixed evenly according to a certain ratio, they are extruded by a row of screws uniformly distributed along the width direction of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/00C04B18/08C04B14/04C04B16/02C04B16/06B28B1/52B28B3/20B28D1/22
CPCY02W30/91
Inventor 韩修智陈志宇何鸿碧陈凌王定强刘阳许志钢王全聚张国良廖传铭林锡辉鲍国明丁艳玲
Owner BEI JING NEW BUILDING MATERIALGRP