Composite coal binder for lime vertical kiln

A composite and binder technology, applied in lime production, petroleum industry, solid fuel and other directions, can solve the problems of reducing lime activity, difficult to meet the requirements of fuel, etc., to improve thermal performance, improve waterproof performance, adhesion strong effect

Inactive Publication Date: 2007-09-19
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

目前,我国已公布了CN1149617、CN86101384、CN86108971、CN1036032、CN1036032、CN1036982、CN1050735、CN1057069、CN1188141、CN1110297,CN1106452、CN1104、CN1080316、CN1057065、CN1204685、CN1252429、CN1314454、CN1320670、CN1330137、CN1345918、CN1772854、CN1563295等 Coal briquette binder patents, but the briquettes produced by using these binders, or in the cold strength and ho

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: press curing agent magnesium oxide 28.3%, activator 7.1%, biomass fiber 7.1%, tensio-active agent 0.8%, bituminous coal 56.7% weight ratio, solidifying agent, activator, tensio-active agent, thermal adhesive The four components of the binder are pulverized and sieved respectively, and weighed according to the weight percentage of the ingredients, and the biomass fiber is weighed according to the proportion (dry weight, if it is a wet material, it is calculated according to its moisture content, to ensure that the biomass fiber The dry weight meets the ratio requirements); take 1.3 times the water of the weight of the composite binder and place it in a container, add the biomass fiber into the water, and stir it with a stirrer after it has fully absorbed water, so that the biomass fiber Disperse well in the water; then add the weighed powders of each component, and stir while adding the ingredients until they are evenly mixed.

[0023] Crush the anthracite ...

Embodiment 2

[0024] Embodiment 2: by curing agent magnesia 25%, activator 5%, biomass fiber 12%, surfactant 0.5%, bituminous coal 57.5% weight ratio, get 1.1 times of the water of composite binder weight, make The steps are as in Example 1.

Embodiment 3

[0025] Embodiment 3: according to the weight ratio of curing agent magnesium oxide 35%, activator 8.0%, biomass fiber 6%, surfactant 1.0%, bituminous coal 50%, get 1.2 times of the water of composite binder weight, make The steps are as in Example 1.

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PUM

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Abstract

The invention discloses a composite coal bonder for lime vertical kiln, which is used for producing coal of lime vertical kiln cold molded by hard coal powder or breeze. Components of the bonder and weight percent thereof is: 25-35% of curing agent, 5-10% of activator, 6-12% of biomass fibre, 0.5-1.5% of surfactant, 50-60% of thermal bonder. The bonder used for producing coal has advantage of simple technology, low cost, coal indexes of compressing strength in state of thermal and cold, dropping strength, thermal stability, caloricity, volatile constituent, ash fusion point, cokability are satisfied producing requires of the lime vertical kiln and with good waterproofness.

Description

technical field [0001] The invention relates to an industrial molded coal binder, in particular to a composite molded coal binder for lime shaft kilns. Background technique [0002] The industrial production of lime often adopts mechanical mixing type lime shaft kiln. Due to the height of the kiln, the feed drop of the fuel mixed with the limestone is large, and the fuel must have good cold performance, especially the anti-drop performance; when the fuel goes forward in the vertical kiln, it not only has to withstand the impact of the air flow and the high pressure generated by the gravity of the material, but also To withstand the high temperature above 1000℃, the thermal performance of the fuel is required to be good enough; in order not to reduce the quality of calcined lime, the calorific value of the fuel should not be too low, the ash content should not be too high, and at the same time, the fuel contains Fe, Al, Si, etc. The oxide content of elements should be as low...

Claims

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Application Information

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IPC IPC(8): C10L5/10C04B2/12
CPCY02P40/45
Inventor 周孑民彭好义邓胜详
Owner CENT SOUTH UNIV
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