SU1286579A1 - Raw mixture for manufacturing heat-insulating material - Google Patents

Abstract

The invention relates to the production of building materials and is intended for the manufacture of thermal insulation of enclosing structures of thermal units. The aim of the invention is the elimination of thixotropic effects during molding, an increase in heat resistance and a decrease in thermal conductivity. The proposed raw material mixture for the manufacture of heat insulating material, including expanded clay, phosphate binder, dehydrated clay, spent petrochemical catalyst, additionally contains finely ground structural ceramics and basic magnesium carbonate in the following ratio of components, wt.%: Phosphate binder 18-22; dehydrated clay 10–13; spent petrochemical catalyst 29-32; fine ground construction battle 6-9; basic magnesium carbonate 1.5-3.5; expanded clay the rest. There is no thixotropic effect in the thermal insulation material obtained from the proposed raw material mixture, and it is much better than the prototype in its thermal insulation properties and heat resistance. 1 tab. e GcheE 00 SG5 SP 4 iCP

Description

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The invention relates to the production of building materials and is intended for the manufacture of thermal insulation of enclosing structures of thermal units.

The aim of the invention is the elimination of thixotropic effects during molding, an increase in heat resistance and a decrease in thermal conductivity.

products heated up to a slightly lower sintering temperature. As you can see, the main part of the proposed thermal insulation material is the production of phosphate heat-resistant industrial waste and its production.

The thin-hearth fight is obtained by grinding in a cone crusher of broken brick and drainage pipes, and dehydrated, clay is taken from the so-called underburning, a ceramic product, warmed up slightly below the sintering temperature. As can be seen, the main part of the proposed thermal insulation material is industrial waste and its production.

and heat insulating materials are associated with certain technological difficulties, primarily with thixotropy — reversible deformation of molded products, leading to a change in both the geometric dimensions and the destruction of the structure. The incorporation of magnesium compounds into the composition of the mass makes it possible to eliminate undesirable thixotropic phenomena as much as possible. However, oxide and magnesium hydroxide in aluminophosphate bonds are difficult to dissolve, and other magnesium compounds

undesired ions (C1, SO) are introduced into the composition. Therefore, in the proposed

The solution used basic magnesium carbonate Mg, (OH), j, COg, which was previously introduced into the stabilized aluminophosphate bond.

Alumocromophosphorus & Alumino-phosphate or other modified aluminophosphate binder can be used as a binder. The dehydrated clay binds water released during the hardening reaction, and together with the spent catalyst and the fine ground battle of construction ceramics forms a finely porous material in which the grains of coarse aggregate are evenly distributed. Interaction of aluminophosphate bonds preactivated by magnesium ions with finely dispersed fill

Lemma begins already at room temperature and is accompanied by intense structure formation. As a result, thixotropic phenomena are not observed — the molded raw field preserves geometrical dimensions and structure.

The spent catalyst brand IM-2201 is a waste of petrochemical production and has the following average chemical composition, wt.%: AlgO 73; 14; SiO 10; 3,

Dehydrated clay and construction ceramics are ceramic waste.

45. Example 3; According to the angshore example 1 of the technology, an insulating material of the following composition is prepared,%: basic magnesium carbonate 3.5; dehydrated gly50 to 13; spent petrochemical catalyst 32; fine ground construction ceramics 9; expanded clay 20.5.

The table lists the physicotechnology, 515 thermal insulating properties. the material obtained in examples 1-3 and the prototype.

As can be seen from the table, the proposed thermal insulation material

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will be part of a comprehensive program to create waste-free technology for the production of building materials.

Example 1. 18% of AHPS was poured into the mixer and 1.5% of basic magnesium carbonate was added. The mixture is stirred for 3-5 minutes (until the release of bubbles (CO) stops and the remaining components are added,%: dehydrated clay 10; spent petrochemical catalyst for production 29; fine ground construction ceramics 6 with expanded clay of fractions 5-10 and 10-20 mm 35.5. Stirring is continued until a homogeneous mass is obtained, then it is placed into molds and compacted by vibrating or tamping. The insulating material acquires a stripping strength after daily hardening, after which it is dried at normal or late temperature to constant mass and used for its intended purpose.

Example 2. By analogy with example 1, a heat insulating material of the following composition is prepared,%; ABFS 20; basic magnesium carbonate 2.5; dehydrated clay 11; spent petrochemical catalyst 31; fine ground building ceramics battle 7 | claydite 28.5.

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in its thermal insulation properties and heat resistance, it is far superior to the prototype.

Claims (1)

Invention Formula The raw material mixture for the manufacture of heat insulating material, including expanded clay, phosphate binder, fO clay, and aluminum-containing waste, which, in order to eliminate the thixotropic effects during molding, increase heat resistance and reduce thermal conductivity, contains 15 - waste waste, used catalysis; Massage with density, kg / m Compressive strength, MPa Heat resistance, amount in & amphiteline heat flux at 800 ° С Maximum application temperature, ° C Thermal diffusivity, average W / mK Thixotropic effects (volume changes after molding),% Editor Y. Petrushko Compiled by A. Kulabukhova Tehred L. Oleinik Order 7679/23 Mintage 588 VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., d. 4/5 dehydrated clay and additionally finely ground building ceramics and basic magnesium carbonate in the following ratio, wt.%: Phosphate Binder 18-22 Dehydrated Glyne 10-13 Spent catalyst for petrochemical production29-32 Scorched battle of construction ceramics 6g9 Basic magnesium carbonate 1.5-3.5 Expanded clayOther . 700700 7.98.2 130125 10001000 0.160.17 are present 750: 7.9 65 1000 0.27 2.5-4.0 Proofreader: L. Pilipenko Subscription