Preparation of Briquettes on the Basis of Sub-Standard Coal of Kazakhstan Fields

Tulepov, M. I.; Sassykova, L.R.; Kerimkulova, A. R.; Tureshova, Gulmira; Abdrakova, F. Yu.; Zhapekova, A. O.; Sultanova, Zukhra; Spanova, Galiya; Tolep, D. M.; Gabdrashova, Sh. E.; Baiseitov, D. A.

doi:10.23939/chcht16.01.118

Cited by 3 publications

(2 citation statements)

References 38 publications

(14 reference statements)

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“…In world practice, technologies for the production of iron-containing briquettes are known, but they differ from the technology we offer, using expensive and complex technologies (thermal, vacuum) of preliminary dehydration and multi-stage agglomeration technologies, which are energyintensive and expensive technologies. [1][2][3][4]. The closest to the proposed technology is the production technology of metallurgical self-healing briquettes of the Russian company EcoMashGIO.…”

Section: Literature Reviewmentioning

confidence: 99%

Drainless Technology for Processing High-Moisture Iron-Containing Sludge and Dust

I.K.,

O.T.

2023

Preprint

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Annotation. PURPOSE. Development of a drainless energy-saving technology for the processing of high-moisture iron-containing sludge from metallurgical production. RESEARCH METHOD. The regularities of the combined process of chemical dehydration of high-moisture iron-containing sludge by powdered waste of lime and dolomite, hardening and agglomeration by pressing in a single technological cycle on the developed experimental plant are studied. In the course of laboratory studies, the temperature of the mass, the rate of dehydration, the chemical composition of the mixtures, the appearance of the resulting briquettes, the weight loss during agglomeration, the humidity of the mixtures, and the mechanical strength of the briquettes were carried out. RESULTS. New patterns have been established that have made it possible to develop a non-firing method for producing iron-containing material and self-healing briquettes. The essence of the method, which is one of the main provisions of scientific novelty, is to combine the processes of dehydration, self-hardening of the mixture with the process of shaping by applying external pressure to the hardening mixture in molds to obtain agglomerated material in the form of briquettes in a single technological cycle. The proposed technology does not require drying and firing, and a set of strength properties occurs as the material is cooled in air during the day. A new energy-efficient and drainless method for the production of iron-containing briquettes has been developed, which combines the processes of chemical dehydration and agglomeration in one technological cycle. CONCLUSION. The proposed project and technology will allow organizing production for the processing of high-moisture iron-containing sludge and obtaining a complex iron-containing material as a secondary metal-containing raw material for metallurgical plants for the production of steel and rolled metal. and dolomite dust of dry gas cleaning) as dehydrating and binding materials, as well as screening of coke and coal as a reducing agent. The proposed technology also solves the problems of environmental pollution and land acquisition for storage of production waste.

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Section: Literature Reviewmentioning

confidence: 99%

Drainless Technology for Processing High-Moisture Iron-Containing Sludge and Dust

I.K.,

O.T.

2023

Preprint

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“…The formation of shea butter shell briquettes with the cassava starch binder occurs as a result of adhesion of char particles with the starch binder (Fig. 2) [13,40].…”

Section: Sem Analysismentioning

confidence: 99%

Development and characterization of charcoal briquettes from shea butter seed shell

Tanko,

Onyebuchi Okafor,

Egwuonwu Dim

2023

JCTM

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Conversion of shea butter shell charcoal to briquettes solid fuel is a means to reduce environmental pollution. This study investigated the potential of converting shea butter shell char to briquettes with cassava starch solution. The shell was pretreated and carbonized at temperature of 450°C for 45 min in a furnace. Five briquette samples were produced with constant weight mass of char and different masses of cassava starch binder was varied as 10 %, 30 %, 50 %, 70 % and 90 %. The briquettes produced were analyzed for moisture content, bulk density, shatter index, water resistance, calorific value and compressive strength. The effect of the different binder contents on quality of the briquette samples was also investigated. The result revealed moisture content varied from 9.12 % to 14.83 % and density varied from 0.61 g cm -3 to 0.85 g cm -3 . The water resistance of the briquettes increased from 40.7 % to 75.5 % and shatter index increased from 71.7 % to 92.1 %., while compressive strength values ranged from 18.63 MPa to 24.46 MPa. The calorific values of the briquettes in their increasing amount of binder were found to be between 16.94 and 22.33 MJ/kg. The briquette with the highest amount of binder had compressive strength of 24.46 MPa and calorific value of 22.33 MJ/kg. The results showed the conversion of sheabutter shell to briquette can serve as an effective technique to bringing value and use to biomass wastes.

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A comprehensive review on the technical aspects of biomass briquetting

Yunusa

Mensah

Preko

et al. 2023

Biomass Conv. Bioref.

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Preparation of Briquettes on the Basis of Sub-Standard Coal of Kazakhstan Fields

Cited by 3 publications

References 38 publications

Drainless Technology for Processing High-Moisture Iron-Containing Sludge and Dust

Drainless Technology for Processing High-Moisture Iron-Containing Sludge and Dust

Development and characterization of charcoal briquettes from shea butter seed shell

A comprehensive review on the technical aspects of biomass briquetting

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