An integrated process of puffing and forming of low-temperature foam glass insulation material

A technology of foam glass and thermal insulation materials, applied in glass forming, glass manufacturing equipment, manufacturing tools, etc., can solve the problems of low efficiency, large heat waste, discontinuous process, etc., and achieve strong process continuity, low production cost, The effect of high expansion efficiency

Active Publication Date: 2017-03-29
宁波荣山新型材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, the most feasible process of the low-temperature foam glass insulation material described in the Chinese invention patent "A polymer-modified low-temperature foam glass insulation material and its preparation method" with the patent number of 201210295591.0 still relies on heating the pellet body material For puffing, the final product can only be pellets, and further processing is required to make other usable thermal insulation products; and heating and puffing are all intermittent, and the airtight container needs to be opened at the stage of putting in the embryo body material and collecting the pellets. Large waste, discontinuous process and low efficiency

Method used

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  • An integrated process of puffing and forming of low-temperature foam glass insulation material

Examples

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Effect test

Embodiment 1

[0035] Now it is necessary to process square plate-shaped low-temperature foam glass insulation blocks. The specific steps are as follows:

[0036] (a) boron-containing raw material and water glass are used to prepare water-containing intermediate material by sol-gel method;

[0037] (b) Put the aqueous intermediate material into the silo 1, and the position of the aqueous intermediate material in the silo 1 is biased towards the side connected to the screw feeder 2;

[0038] (c) The whole device starts to work, and the water-containing intermediate material enters the screw feeder 2 for preliminary stirring and then enters the mixer 3 to fully stir and mix with the additive;

[0039] (d) The fully mixed water-containing intermediate material enters the extruder barrel and begins to melt and expand under the temperature of 200-400°C generated by the extrusion screw 4 and the high pressure of 3-8Mpa; the heat preservation and auxiliary heating sleeve 5 ensures temperature stabi...

Embodiment 2

[0045] Now it is necessary to process square plate-shaped low-temperature foam glass insulation blocks. The specific operation steps are the same as in Example 1, that is, in step e, the extrusion die 6 is replaced with a mold with a rectangular mold cavity. Uniform finished product, the finished product is 100mm×30mm×300mm low-temperature foam glass insulation block, the density is 170kg / m 3 , the thermal conductivity is about 0.042w / (m k), and the prepared low-temperature foam glass insulation block is directly constructed on the outer wall of 15 square meters. The construction process is simple and convenient, and the flatness is high after pasting, and the vertical surface strength is good. .

Embodiment 3

[0047] It is necessary to process the cylindrical low-temperature foam glass insulation block now, and the specific operation steps are the same as in Example 1, that is, in step e, the extruding die 6 is replaced with a circular mold with a molding cavity, and the cutting tool 11 cuts off a large or small Uniform finished product, the finished product is a 10mm low-temperature foam glass insulation block with a density of 190kg / m 3 , the thermal conductivity is about 0.050w / (m·k), it is filled into the pipe, and the heat preservation effect is good.

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Abstract

The invention relates to a swelling-molding integrated device and method for heat-insulating materials of low-temperature foam glass. The integrated device comprises a stock bin, a mixer, a spiral feeder, an extruding cylinder, an extruding die and a cooling cylinder, wherein an extruding screw rod is transversely mounted inside the extruding cylinder; one end of the extruding screw rod is connected with a motor through a gearbox, and the other end of the extruding screw rod penetrates through the extruding cylinder and is connected with the extruding die; the cooling cylinder and a cut-off tool are arranged in sequence on the other side of the extruding die; a heat-insulating and auxiliary heating sleeve is wrapped on the outside of the extruding cylinder; the upper side of one end, near the gearbox, of the extruding cylinder is connected with the lower side of one end of the transversely arranged mixer; the upper side of the other end of the mixer is connected with the lower side of one end of the spiral feeder transversely arranged at the upper part of the mixer; the upper side of the other end of the spiral feeder is connected with the stock bin arranged at the upper part of the spiral feeder. The integrated device adopts the screw rod extruding technology to uninterruptedly conduct swelling and molding simultaneously, and is high in efficiency and low in energy consumption.

Description

technical field [0001] The invention belongs to the field of low-temperature foam glass thermal insulation material and its preparation, and in particular relates to an integrated puffing and forming process of low-temperature foam glass thermal insulation material. Background technique [0002] Foam glass insulation board is a new type of heat preservation, flame insulation and sound absorption material. The foam glass insulation board is made of crushed glass, which is melted at high temperature and processed into inorganic fibers by centrifugation. The foam glass wall insulation material is one of the new environmental protection insulation materials, which is environmentally friendly, safe, comfortable and economical. The low-temperature foam glass insulation material starts from the perspective of high chemical stability and high durability sodium borosilicate glass and its internal structural characteristics. Boron element can capture free oxygen or replace Si element...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C11/00C03B19/00
Inventor 王智宇王小山阮华李陆宝屠浩驰
Owner 宁波荣山新型材料有限公司
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