Fuel rod and preparation method thereof

A technology of fuel rods and mixed materials, which is applied to fuels, waste fuels, solid fuels, etc., can solve the problems of high cost, low conversion rate of achievements, and difficulty in promotion, and achieves low cost, low volatile content, and easy promotion. Effect

Active Publication Date: 2014-12-17
SHENWU TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the high price of coke powder, the binder is a self-made binder, and the cost is high, so the conversion rate of the result is low and the promotion is difficult.

Method used

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  • Fuel rod and preparation method thereof
  • Fuel rod and preparation method thereof
  • Fuel rod and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Raw material formula: 1 part by weight of bentonite, 3 parts by weight of slaked lime, 2 parts by weight of biomass powder, 0.5 part by weight of combustion-supporting agent, 6 parts by weight of humic acid binder, 100 parts by weight of blue carbon powder;

[0064] Preparation method: firstly mix blue charcoal powder with biomass powder, bentonite, slaked lime and combustion accelerant to obtain a first mixture material, then add humic acid binder to the first mixture material and continue stirring to obtain a second mixture Then, the second mixed material is extruded by a ring mode molding machine to obtain a molding material, and then the obtained molding material is dried to obtain a fuel rod.

[0065] The obtained fuel rods have a drop strength of 92.8%, compressive strength of 712N / piece, dry ashless volatile matter of 7.4%, moisture content of 3.46%, calorific value of 26.12MJ / kg, and density of 1.16g / cm 3 , and test the fuel rods, the continuous burning time can...

Embodiment 2

[0067] Raw material formula: 2 parts by weight of bentonite, 2 parts by weight of slaked lime, 2 parts by weight of biomass powder, 0.8 parts by weight of combustion-supporting agent, 8 parts by weight of humic acid binder, 100 parts by weight of blue carbon powder;

[0068] Preparation method: same as Example 1.

[0069] The obtained fuel rod has a drop strength of 93.5%, a compressive strength of 720N / piece, a dry ashless volatile matter of 8.7%, a moisture content of 2.86%, a calorific value of 27.86MJ / kg, and a density of 1.17g / cm 3 , and the fuel rods are tested for burning, the continuous burning time can reach 9 hours, and the SO2 emitted in the flue gas 2 The concentration is 16.5mg / m 3 , NO x Concentration is 42mg / m 3, obviously lower than the standard of "Beijing Boiler Air Pollutant Emission Standard" DB 11 / 139-2007.

Embodiment 3

[0071] Raw material formula: 2 parts by weight of bentonite, 2 parts by weight of slaked lime, 3 parts by weight of biomass powder, 0.8 parts by weight of combustion-supporting agent, 8 parts by weight of humic acid binder, 100 parts by weight of blue carbon powder;

[0072] Preparation method: same as Example 1.

[0073] The obtained fuel rod has a drop strength of 90.2%, a compressive strength of 703N / piece, a dry ashless base volatile matter of 9.5%, a moisture content of 3.67%, a calorific value of 28.65MJ / kg, and a density of 1.15g / cm 3 , and the fuel rods are tested for burning, the continuous burning time can reach 8.5 hours, and the SO2 emitted in the flue gas 2 Concentration is 16mg / m 3 , NO x Concentration is 44mg / m 3 , obviously lower than the standard of "Beijing Boiler Air Pollutant Emission Standard" DB 11 / 139-2007.

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Abstract

The invention discloses a fuel rod and a preparation method thereof. The preparation method comprises the following steps: carrying primary mixing treatment on semi-coke powder, biomass powder, a combustion improver, a sulfur-fixing agent and bentonite to obtain a first mixed material; carrying out secondary mixing treatment on the first mixed material and a binder to obtain a second mixed material; molding the second mixed material by virtue of a looping-model molding machine to obtain a molded material and drying the molded material to obtain the fuel rod. The fuel rod prepared by the method has the characteristics of low volatile components, low content of sulfur and high calorific value and is cheap, and thus the fuel rod can replace the blind coal to be applied in suburban villages or rural areas in winter for heating and cooking so that fog and haze can be significantly reduced and the air quality is effectively improved.

Description

technical field [0001] The invention belongs to the field of clean fuel, and in particular, the invention relates to a fuel rod and a preparation method thereof. Background technique [0002] Blue charcoal is one of the products of coal dry distillation, which has the advantages of low volatile content, high fixed carbon and high calorific value. Lan charcoal is currently in a state of oversupply, product prices have fallen, the release rate of enterprise production capacity is low, operating efficiency is low, and development has fallen into a slump. With the transfer of blue carbon block dry distillation to face coal dry distillation in the future, the output of blue carbon powder will also increase significantly, and the blue carbon powder in other regions will provide sufficient raw materials for the production of clean briquette. However, the molding of blue carbon is more difficult, because blue carbon has great elasticity and small plasticity. The literature shows t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10L5/04C10L5/14
CPCY02E50/30
Inventor 吴道洪王建民刘涛赵飞翔郭盼盼高建陈家全
Owner SHENWU TECH GRP CO LTD
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