SU1737002A1 - Mixture for producing briquetted fuel - Google Patents

Abstract

SUMMARY OF THE INVENTION: The fuel contains 85-95% of sawdust or shavings and 5-15% of binder, which is an aqueous suspension of the processing of kashy-rich aluminum foil with a concentration of 1.21-5.0 May,%. The fuel obtained after briquetting and heat treatment at 130-150 ° C has a porosity of 75-77% and a strength of 1.7-3.2%. 2 tab.

Description

The invention relates to the composition of briquetted fuel and can be used in the woodworking and fuel industry and in everyday life for briquetting sawdust and shavings.

The purpose of the invention is to increase the porosity and reduce the crushability of the fuel.

Characteristics of the original components. Wood waste is a waste of ordinary wood - sawdust or shavings of any particle size.

The original laminated aluminum foil has the following composition, wt.%: Aluminum 47.0-49.5

Paper -49,5-50,0

Adhesive 0.5-3.5

In this case, aluminum complies with GOST 745-79, and starch, dextrin or emulsion glue, for example, brands 22-38, are used as glue.

Aqueous suspension of recycling laminated aluminum foil was prepared as follows.

To obtain 100 kg of suspension, waste of laminated aluminum foil in the amount of 4-12 kg is dissolved and ground in a pulper (GRG) or a mass roll (PBM-002) with a gap between the drum blades and the bar, then boiling water is added to the waste the amount of 95-98.79 kg and stirred for 10-15 minutes Then the resulting mass is placed in a phase separator. For example, in the settling tank and after delamination, an aqueous suspension of paper (100 kg) is separated, i.e. a paper pulp containing, in wt.%:

Paper1.0-4.5

Aluminum foil powder 0.01-0.1 Glue 0.2-0-0.4 Water Else The determination of the ratio of the indicated ingredients in the aqueous suspension of paper depends on the degree of spinning of the processed mass in the sump. The resulting pulp is used as a binder.

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for the manufacture of briquetted fuel.

 The residue is a mixture of aluminum powder, paper and water and is used to make aluminum products.

The technology for preparing the briquetted fuel of the proposed composition is as follows.

An aqueous suspension of processing laminated aluminum foil in the amount of 15, 10 and 5 kg is introduced into the mixer, then wood waste in the amount of 85, 90 and 95 kg for examples 1, 2 and 3, respectively.

After thorough mixing (within 5-10 min), the resulting mass is formed into briquettes in forms with a mesh bottom or on a drain machine by decanting excess water,

The formed briquettes are dried in a dryer at a temperature of 130-150 ° C.

Specific examples of the manufacture of the proposed composition and test cases to substantiate the proposed limits of the contents of the components are given in

Table 1.

The advantages of the proposed structure in comparison with the known and control examples are given in table 2. FORUMAWLAH AND ISLANDS

A composition for producing briquetted fuel, including wood waste and a binder, characterized in that, in order to increase porosity and reduce the crumbliness of the fuel, it contains as a binder an aqueous suspension of processing laminated aluminum foil with a concentration of 1.21-5.0 wt. % in the following ratio, wt.%: sawdust or shavings 85-95; Aqueous suspension of processing of laminated aluminum foil with a concentration of 1.21-5.0 wt.% 5-15.

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Table 1

table 2

Continued table. 2

Claims (1)

Claim Composition for producing briquetted fuel, including wood waste and a binder, characterized in that. in order to increase the porosity and reduce the crumbliness of the fuel, it contains an aqueous suspension of processing cached aluminum foil with a concentration of 1.21-5.0 wt.% in the following ratio of components, wt.%: sawdust or wood shavings 85-95: water, as a binder a suspension of processing cached aluminum foil with a concentration of 1.215.0 wt.% 5-15. Table 1 Components Example Proposed Control 1 2 3 1 2 Sawdust wood waste 85 95 96 84 shavings 90 -  - Aqueous suspension of the processing of cached concentration aluminum foil, May. % 1 1.21 2 3 fifteen 10 5 4 16 table 2 i Composition Indicators Bulk weight, g / cm ³ Ash content,% Porosity. % Crumbling. % Known for example 1 0.38 8 60 5,0 2 0.40 9 66 4.3 3 0.42 10 72 3.5 Famous (base coal) 1-1,2 16-17 35-40 10-12 Known (example 2) 0.5-0.8 5-8 40-50 10-15 b Continuation of the table. 2 Composition Indicators Bulk weight, g / cm ³ Ash content. % Porosity,% Crushes,% Control example 1 0.36 7.8 65 4.8 2 0.41 6.5 60 5.2 3 0.34 7.6 65 4.9 Proposed in example 1 0.37 5 77 2.3 2 0.36 5,4 75 1.7 3 0.36 4.95 77 3.2