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Blended centrifuging glass cotton fiber felt and its making method

A technology of centrifugal glass wool and fiber mat, which is applied in textiles, papermaking, non-woven fabrics, etc., can solve the problems of decreased strength, high production cost, reduced bulk density, etc., and achieves low production cost, large production capacity, and low equipment investment. Effect

Inactive Publication Date: 2005-05-25
严煜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Centrifugal glass wool felt is a high-quality fire-proof, heat-insulating, and sound-absorbing material. However, due to its high production cost, many applications require manufacturers to provide low-cost products, resulting in a decrease in bulk density. As a result, its greatly reduced intensity

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1: the preparation of mixing centrifugal glass wool fiber felt

[0036] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0037] SiO 2 65%

[0038] Al 2 o 3 7%

[0039] CaO 5%

[0040] MgO 3.5%

[0041] K 2 O+Na 2 O 15%

[0042] B 2 o 3 5%

[0043] The fiberizing machine used is a flame blowing centrifuge.

[0044] The mineral wool melting furnace used is a cupola with a diameter of 1600mm, and the fuel is coke.

[0045] Raw material formula for mineral wool production:

[0046] SiO 2 42%

[0047] Al 2 o 3 6.5%

[0048] CaO 34%

[0049] MgO 6%

[0050] K 2 O+Na 2 O 0.69%

[0051] Fe 2 o 3 0.20%

[0052] Acidity coefficient M K 1.21

[0053] The fiberizer used was a four-roller ...

Embodiment 2

[0066] Embodiment 2. the preparation of mixing centrifugal glass wool fiber felt

[0067] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0068] SiO 2 60%

[0069] Al 2 o 3 10%

[0070]CaO 8%

[0071] MgO 3%

[0072] K 2 O+Na 2 O 13%

[0073] B 2 o 3 7%

[0074] The fiberizing machine used is a flame blowing centrifuge.

[0075] The mineral wool melting furnace used is a cupola with a diameter of 1600mm, and the fuel is coke.

[0076] Raw material formula for mineral wool production:

[0077] SiO 2 36%

[0078] Al 2 o 3 7%

[0079] CaO 28%

[0080] MgO 6.8%

[0081] Fe 2 o 3 0.10%

[0082] Acidity coefficient M K 1.23

[0083] The fiberizer used was a four-roller centrifuge.

[0084] The binder used is phenoli...

Embodiment 3

[0096] Embodiment 3. the preparation of mixing centrifugal glass wool fiber felt

[0097] The glass melting furnace used is a single-chord horseshoe type regenerative glass melting furnace. Volume: 3700×7500×1400mm, with heavy oil as fuel, the raw material formula for centrifugal glass wool production is:

[0098] SiO 2 61%

[0099] Al 2 o 3 1%

[0100] CaO 10%

[0101] MgO 5%

[0102] K 2 O+Na 2 O 23%

[0103] The fiberizing machine used is a flame blowing centrifuge.

[0104] The binder used is phenolic resin with 40% solid content, add additives, add water, the ratio is 1: 1.1: 1.5 (mass ratio)

[0105] The additive formula is as follows:

[0106] Urea 400kg

[0107] Ammonium sulfate 60kg

[0108] Silane 1.2kg

[0109] Silicone oil 5kg

[0110] Mineral oil 1.0kg

[0111] Ammonia (20% content) to adjust the pH to 7.5

[0112] Add water to set the weight to 3 tons.

[0113] After the centrifugal glass wool raw material is prepared...

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Abstract

The present invention relates to a mixed centrifugal glass wool fibre felt. It is formed from mixture of centrifugal glass wool and inorganic fibre or organic fibre, in which the mass ratio of centrifugal glass wool and inorganic fibre or organic fibre is 2:8-6:4. The described organic fibre can be plant fibre or animal fibre, and the described inorganic fibre can be mineral wool, rock wool or glass fibre. Said invention also provides its production method.

Description

1. Technical field [0001] The invention relates to a mixed centrifugal glass wool fiber mat and a preparation method thereof. 2. Background technology [0002] Centrifugal glass wool felt is a high-quality fire-proof, heat-insulating, and sound-absorbing material. However, due to its high production cost, many applications require manufacturers to provide low-cost products, resulting in a decrease in bulk density. As a result, its The intensity is greatly reduced. [0003] Due to some inherent characteristics, organic or inorganic fiber mats are poor in fire protection and thermal insulation performance, but they are low in cost and have a wide range of sources. 3. Contents of the invention [0004] In order to improve the strength of centrifugal glass wool felt and the flexibility of organic or inorganic fiber felt, reduce the production cost of centrifugal glass wool felt, and increase the production capacity, organic or inorganic fibers are added in the production proc...

Claims

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Application Information

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IPC IPC(8): D04H1/60
Inventor 严煜张忠华
Owner 严煜
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