SU1409454A1 - Method of producing articles made of mineral wool - Google Patents

Abstract

The invention relates to building materials and can be used for the manufacture of mineral products. The goal is to manufacture products with a binder based on lignosulfonates with a simultaneous decrease in the gas output of the binder during its heat treatment and a decrease in the destructive effect of the binder on the fiber. In the method of producing mineral-wool products, including the introduction of a high-boiling liquid into the synthetic jcoBep on a synthetic bond with a pinion, before the introduction of the high-boiling liquid is dispersed together with lignosulfonates in the following ratio of components, wt.%: 50-98 ligosulfonate, high boiled liquids -50. High-boiling oil has a boiling point of 200-500 ° C. Distillation residues from the production of polyhydric alcohols, mines, rapeseed oil, fuel oil, paraffin are used as high-boiling liquid. The pH of the aqueous extract is 6.0-7.0. Products satisfy GOST 9573-72 and GOST 22950-78. 8 tab. (L

Description

; o; l 4

eleven

The invention relates to building materials and can be used for the manufacture of mineral wool products.

The purpose of the invention is the manufacture of products with a bonding agent based on ligosulfonates with a simultaneous decrease in the gas output of the binder during its curing and a decrease in the destructive effect of bonding on the fiber.

The lignosulfone-based binder and high-boiling liquid are dispersed in a mixer with a rotational speed of the working part of 120 rpm for 5 minutes. To improve dispersion, oil and paraffin are introduced in a state heated to 60 ° C. As a high boiling liquid, in addition to fuel oil and paraffin, mineral oil and distillation residues from the production of polyatomic alcohols are introduced, which are a mixture of ethylene, diethylene, triztilen, tetraztilen, and pentaztilen glyc: ol, glycerol, di-, tri-, tetra- and pentaglycerins, and a mixture of pentazritrites.

The boiling points of the bottoms from the production of polyatomic alcohols 200, mineral oil 340-400 C, fuel oil 360-420 C, paraffins 320-500 s.

After dispersion, the high boiling liquid together with the lignosulfonates is introduced into the mineral fiber. The binder, together with the high boiling liquid, is injected into the fiber by spraying or in hydromassage. The samples are then thermally processed at 200 ° C with a 2 kPa pressing. The high boiling liquid is introduced into the binder in an amount of 2.20 and 50% by weight with respect to the lignosulfonates contained in the binder. In a known manner, the binder is first introduced into the mineral fiber (by spraying or in hydromassage), and then, before pressing and heat treatment, high-boiling ethylene glycol is introduced into the sample.

(boiling point - 197 ° С) in the amount of 5% of the weight of the resulting carpet. Heat treatment temperature 200 ° C, pressing in during heat treatment 2 kPa To determine the loss of the binder when injected, the following tests are carried out: determination of the loss of the binder in case of its introduction in mineral fiber by pulverizing

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five

0

five

0

five

0

five

five

by air in the drying cabinet (simulation of the conditions of the factory chamber: fiber deposition); gelatinization time of the binder in the sample, determined upon reaching the temperature thermal thermal maximum inside the sample during heat treatment; gas output of heat-transfer binder samples at 200 C with a binder content of 10% relative to the mass of the sample. Determined by the weight of the sample during heat treatment (see Table 2-4).

Table 1 shows the loss of the binder when it is sprayed onto the mineral wool sample in layers according to the proposed and known methods.

Table 2 shows the time of gelatinization of the binder in the sample with the introduction of high boiling liquid according to the proposed and known methods.

Table 3 shows the gas yield of the binders (weight loss) during heat treatment of samples from hydro10% by 200 ° C.

mass with binder content to sample mass.

Table 4 shows the maximum temperature inside the sample obtained by dissolving the binder according to the proposed and known methods. Heat treatment temperature 200 ° C. The binder content is 4 wt.%. Sample size 20x20x5 cm.

Table 5 shows the pH of the aqueous extract when extracting samples obtained by the proposed and known methods from hydromass with a binder content of 10%.

Table 6 shows the compressibility under load of 2 kPa of the samples before / after sorption moisture for 3 days. Samples were obtained by spraying the binder with the introduction of high boiling liquid according to the proposed and known methods. The content of the binder in the samples is 4%.

Table 7 shows the compressive strength of the samples at 10% deformation before / after sorption moisture for 3 days. Samples obtained id. hydromass with the introduction of high-boiling liquid according to the proposed and known methods.

Content svukitsogo 10%.

table 8 shows the physico-mechanical properties of products.

The plates obtained satisfy and even exceed GOST 9573-72 and GOST 22950-78.

The proposed method makes it possible to reduce the loss of the binder when it is applied to the fiber by 3-80 times as compared with the known way of increasing the gelatinization time by 2-3 times and reducing the gas yield during heat treatment of the binders by 1.5-5 times (Table 2 -four).

In addition, the role of destructive factors is reduced: a decrease in the effect of the temperature factor on the exotherm of curing the binder by 100 -, raising the pH to neutral (from 4 to 7).

The possibility of using lignosulfonates in mineral wool production allows the replacement of deficient and toxic phenol alcohols.

five

20

25

formula of invention

1.Method of making mineral treatment products by introducing synthetic binder and high boiling liquid into the fiber and heat treatment, which is characterized by the fact that, in order to manufacture products with a binder based on lignosulfonates while reducing the gas output of the binder when it is cured and by reducing the destructive effect of the binder on the fiber, prior to the introduction into the fiber, the high-boiling liquid is dispersed together with the lignosulphonates in the following ratio of components, wt.%

High quality

liquid2-50

Lignosulfonates 50-98

2. Method POP.1, characterized in that liquid from a series is used as a high boiling liquid: bottom residues of the production of polyhydric alcohols, mineral oil, fuel oil, paraffin,

boiling point 200-500 C.

I

Ethylene glycol 5 Vat residues produced by polyatom Table 1

80

93

92

Losses due zwhcegOu wt.%, The composition according to the method

proposed

1 2 U 3 4 G 5 I 6

Paraffin

2

20 50

15 2 1

The content of the second liquid mixture, wt.%

G T

Table 2 The gel time, mines, compositions

1 Ш ± Ш1П1Г ±

Ethylene glycol 5e Vat residues of production, polyatomic

I

Continued table.

from the famous

18 16 2 2 2 1

14

13

12.5

Gas yield of binder, wt.%, Compositions

irJUTZ-IZIZ-II

Ethylene glycol 5 Vat residues from polyatomic production

Kokip common liquid, wt.%

Etipenekol 5 Vat residues polyatomic production

.

Table 3

60

70

75

.Table 4

310 340

400

140945410

Continuation of table 4

P

Compressibility,%, of samples before / after sorption wetting of compositions

a little

and 5 residual water 2

20 50

2

20 50

2

20 50

2

20 50

8/109/119/10

5/75/75/7

4/54/54/5

9/1010/1210/12

5/65/75/7

4/54/64/6

8 / 10E / 119/11

5/65/65/6

4/55/64/5

7/98/107/9

4/54/54/5

4/54/54/5

5 x

2 2 / 1.81.9 / 1.7

20 2.2 / 22.1 / 2

50 2.3 / 2,12,2 / 2,1

2 2 / 1.82 / 1.8

20 2.2 / 22.2 / 2.1

I409A5A

12 . Table 6

18/25 19/26 17/23

Table 7

0.9 / 0.60 9 / 0.7 0.8 / 0.5

1.9 / 1.7

2.1 / 2

2.2 / 2.1

2 / 1.8

2.2 / 2.1

13

U0945A

High boiling liquid content. wt.%

Paraffin

2 2.2 / 2.1 2.3 / 2.1 2.3 / 2.2 20 2.3 / 2.2 2.4 / 2.3 2.4 / 2.3 50 2.4 / 2 , 3 2,4 / 2,3 2,4 / 2,3

slabs

s slabs slaughter dl

70; 72; 74; 69 210; 205; 210; 200

7. 1 S 1 S 9, I, J, 1,3, f.

9 S 7-, j, -i ,,

210; 150; 120; 150 10; eight; five; four

TO. t. -1. : i 0 -i, O, J, J, J,

480; 470; 450; 460 370; 390; 390; 400

14 g. Continuation of table.

75; 72; 70; 68 190; 200; 200; 200 2; 2.5; 1.5; 1.5 2.5; 2; 2; 1.7; 1.5 170; 160; 160; 150 8; 7; 7; 4 3.5; four; four; 4.2 500; 520; 520; 510 470; 410; 410; 420

Claims (2)

Claim 1. A method of manufacturing mineral wool products by introducing into the fiber j a synthetic binder and a high boiling liquid and heat treatment, characterized in that, for the purpose of manufacturing products with a binder based on lignosulfonates while reducing the gas output of the binder during curing and reducing the destructive effect of the binder on fiber, before introducing into the fiber a high-boiling liquid 15 is dispersed together with lignosul. fonty in the following ratio of components, md: High boiling liquid 2-50 20 Lignosulfonates 50-98 2. The method according to claim 1, characterized in that the liquid from the series is used as a high boiling liquid: bottoms from the production of polyhydric alcohols, mineral oil, fuel oil, paraffin, s. boiling point 200-500 ° C. I Table 1 The content of high-boiling liquid, md Loss of a binder, wt.%, Composition according to the method offer famous 1 eleven eleven eleven 1 ~ 1 eleven eleven eleven 1 ω | eleven eleven eleven A-LdL Ethylene glycol 5 - - - 80 93 92 VAT residues 0 production ki < wa polyatom- alcohols 2 20 thirty 28 - - - 20 7 8 7. - - . - fifty 3 5 3 - - - Mineral oil 2 22 28 31 - - - 20 6 9 7 - - - fifty 2 7 5 - - ’ - Fuel oil 2 20 •20 18 - - 20 2 3 3 • - - fifty 2 2 2 - - - Continuation of table 1 High boiling liquid content. wt.X I 1 Loss of a binder, wt. X, composition according to the method of excitation Paraffin g 20 2 2 2 - - - fifty 1 2 1 - - -. T a b l and 2 High content Gel time min compositions boiling liquid ] - ------_ ST, wt .X 1 b ^{3 4} I 5 I ⁶ Ethylene glycol 5e 14 thirteen 12.5 VAT residues production ki wa. polyatomic alcohols 2 22 20 19 - - - 20 26 25 25 - - - fifty 35 thirty 28 - Mineral oil 2 23 21 20 - - - 20 27 25 25 - - - fifty 35 34 34 - - - Fuel oil 2 22 22 21 - - - 20 28 26 25 - - - fifty 37 .35 34 - - - Paraffin 2 24 23 22 - - - 20 27 26 26 - - - fifty ' 38 35 35 y, table 3 The content of high-boiling liquid, wt.% The gas yield of binders, May.%, Compositions 1 IlIl. l · 1 ⁵ ] 6 Ethylene glycol 5 VAT bottoms production of polyatomic - - - 60 70 75 alcohols 2 thirty 40 45 - - - 20 25 thirty 32 f *. - - Mineral fifty 20 28 thirty - - - oil 2 thirty 35 35 - - - 20 24 25 25 - - - fifty 20 22 23 - - - Fuel oil 2 23. 24 25 - - - 20 17 .19 20 - - - fifty fifteen 18 27  - - - Paraffin 2 18 19 20 - - - 20 fifteen 16 17 - - - fifty 12 fifteen fifteen - - .Table 4 The content of high-boiling liquid, wt.% The temperature inside the sample, ° C, compositions 310 340 400 O 'Ί Ethylene glycol 5 VAT bottoms of the production of polyatomic alcohols 2 230 250 260 - - : - 20 220 220 220 - -. - fifty 210 210 210 - -. 1m Mineral oil 2 230 240 245. - - - 20 215 220 220 - -  - m Continuation of table 4 I The content of the high boiling liquid _th about Temperature inside the sample, compositions AUb 1 П ΓΊϋν ’Μ 1 T ⁴ T = t fifty 210 205 t 210 Fuel oil 2 220 225 230 20 220,215 215 fifty 210 205 210 Paraffin 2 210 220 220 20 210 210 210 fifty 205 210 205 - FROM, 25 table 5 The content of high-boiling liquid, wt.% pH - aqueous extract formulations ’I 2 3 ⁴ f 6 Ethylene glycol 5 S 4.0 4.6 4.8 VAT residues of the production of polyhydric alcohols 2 6.0 6.2 6.0 20 6.5 6.8 6.8 - - - fifty 6.7 6.9 6.8 - - - Mineral oil 2 6.0 6.2 6.1 - - - 20 6.7 6.8 6.8 - - - fifty 6.8 6.9 6.8 - - - Fuel oil 2 6.3 6.4 6.4 - - - 20 6.7 6.9 6.7 - - - fifty 6.8 7.0 7.0 - - - Paraffin 2 6.6 6.7 6.6 -  - - 20 7.0 7.0 7.0 - - - fifty 7.0 7.0 7.0 - -. - eleven 12 Table 6 The content of high-boiling liquid, wt. X Compressibility, samples before / after sorption wetting compounds 'Ί ² [ ³ Ethylene glycol 5 VAT bottoms production of polyatomic 18/25 19/26 17/2 alcohols 2 8/10 9/11 9/10 - - - 20 5/7 5/7 5/7 - Mineral fifty 4/5 4/5 4/5 - - oil 2 9/10 10/12 10/12 - - - 20 5/6 5/7 5/7 - - fifty 4/5 4/6 4/6 - - Fuel oil 2 8/10 9/11 9/11 - - 20 5/6 5/6 5/6 - fifty 4/5 5/6 4/5 - - Paraffin 2 7/9 8/10 7/9 - • 20 4/5 4/5 4/5 - - fifty 4/5 4/5 4/5 - - Table 7 High boiling liquid content, May. 2 The compressive strength of the samples, kg / cm ² , at 10Z deformation before / after sorption wetting of the compositions y — ₂ -— | - y _t - _t - _g Ethylene glycol 5 VAT bottoms production of polyhydric alcohols 0.9 / 0.60 9 / 0.7 0.8 / 0.5 Mineral oil 2 2 / 1.8 1.9 / 1.7 1.9 / 1.7. - - - 20 2.2 / 2 2,1 / 2 2,1 / 2 - - - fifty '2,3 / 2,1 2.2 / 2.1 2.2 / 2.1 - - 2 2 / 1.8 2 / 1.8 2 / 1.8 - - - 20 2.2 / 2 2.2 / 2.1 2.2 / 2.1 - - - / Continuation of Table 7 High boiling liquid content. wt.X Compressive strength of samples, kg / cm *, at 10Z deformation before / after sorption wetting of the compositions fifty 2,3 / 2 2.2 / 2.1 2.2 / 2.1 -  - - Fuel oil 2 2,1 / 2 2,1 / 2 2,1 / 2 - - - 20 2,3 / 2,2 2,3 / 2,2 2,3 / 2,2 - - - fifty 2,4 / 2,3 2.4 / 2.2 2,3 / 2,2 - - - Paraffin 2 2.2 / 2.1 2.3 / 2.1 2,3 / 2,2 - - - 20 2,3 / 2,2 2,4 / 2,3 2,4 / 2,3 - - - fifty 2,4 / 2,3 2,4 / 2,3 2,4 / 2,3 - - - Table 8 Indicator Composition ________ ’ 3 Volumetric mass of plates Pancreas, kg / cm ^ Volumetric mass of plates 70; 72; 74; 69 68; 70; 73; 72 75; 72; 70; 68 PPS, kg / m ³ 210; 205; 210; 200 200; 200; 205; 210 190; 200; 200; 200 Hygroscopicity of plates ПЖ, Z 2; 1.5; 1.5; 2 2.5; 1.5; 1; 2 2; 2.5; 1.5; 1,5 Hygroscopicity of plates ППЖ, 7> 2.5; 2; 2; 2 2.7; 2; 2; 1,5 2.5; 2; 2; 1.7; 1,5 ⁷ Water absorption of pancreatic plates, May. Z 210; 150; 120; 150 180; 170; 150, -140 170; 160; 160, -150 Plate water absorption PJ, May L 10; 8; 5; 4 9; 6; 5; 3 8; 7; 7; 4 Bending strength plates ППЖ, kg / cm ^a 2.8; 3; 3; 3.2 2.7; 3; 3.5; 4 3.5; 4; 4; 4.2 Heat resistance for plates ПЖ, ° С 480; 470; 450; 460 500; 490; 500; 500 500; 520; 520; 510 Heat resistance for plates ППЖ, ° С 370; 390; 390; 400 380; 380; 400; 410 470, -410; 410; 420 I ВНИИПИ Order 3429/16 Circulation 528 Subscription Custom polygon. ave, city of Uzhhorod, st. Project, 4