Combustion supporting, coal saving, modified additive

An additive and modification technology, which is applied in the field of coal-saving additives, can solve the problems of insufficient technology, difficulty in popularization, and large negative effects, so as to reduce the emission of smoke and harmful gases, reduce the heat loss of exhaust smoke, and prolong the service life. Effect

Inactive Publication Date: 2010-05-12
李军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the above combustion aids for coal are indeed helpful to promote the combustion of coal, and have certain effects on environmental protection and pollution reduction, there are many problems in terms of safety, stability and economy in use due to insufficient technology. In addition, due to the influence of many factors such as different places of origin and formation ages of coal, different places of use and methods of operation, etc., the negative effects in popularization and application are relatively large and it is difficult to popularize them widely.

Method used

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  • Combustion supporting, coal saving, modified additive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-7

[0030] 1. Select the raw material slag and industrial waste slag that meet the content requirements respectively according to the proportion and technical requirements, and crush them to a fineness of 80 mesh to 300 mesh with a rubber iron mill, cool naturally, and set aside;

[0031] 2. According to the order of reducing agent→expansion agent→sulfur-fixing agent descaling→smoke cleaner→catalyst→oxidant, add them into the stirring tank in proportion, stir and homogenize for 1 minute, and the total amount of each batch should not exceed 1 ton;

[0032] 3. Put the evenly stirred material in a cool and dry place to passivate for 24 hours;

[0033] 4. After passing the inspection, the measured packaging is 25kg / bag, the outer layer is a polypropylene woven bag, and the inner layer is a plastic bag; storage is required to be stored in a dry and cool place, not exposed to the sun, rain, and not afraid of freezing. Example 1:

Embodiment 1

[0034] KClO 4 : 18 kg, NaNO 3 : 7 kg, MgO: 11 kg, Fe 2 o 3 : 6 kg, CaCO 3 : 15 kg, C 6 h 12 N 4 : 4 kg, Ba(NO 3 ) 2 : 13 kg, KCl: 12 kg, mAl 2 o 3 -nSiO 2 -xH 2 O: 4.3 kg, MgSiF 6 -6H 2 O: 9 kg. This optimized ratio scheme is suitable for cement calcining shaft kiln.

Embodiment 2

[0036] MnO 2 : 15kg, KNO 3 : 8.8 kg, K 2 CO 3 : 9 kg, SiO 2 -nH 2 O: 2 kg, Al 2 o 3 : 13 kg, MgCO 3 : 6 kg, NaOH: 5 kg, KClO 3 : 11 kg, CaO: 10.7 kg, NaCl: 20% kg. This optimal ratio scheme is suitable for circulating fluidized bed.

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Abstract

This invention discloses a combustion-supporting and coal-saving additive. The additive comprises: oxidant 1-30 parts, catalyst 1-50 parts, and sulfur-fixing descaling agent 1-60 parts. The oxidant isselected from NaNO3, NaNO2, NaClO, MgCO3 and C6H12N4. The catalyst is selected from MnO2, KClO3, KClO4, KMnO4 and KNO3. The sulfur-fixing descaling agent is selected from CaO, Al2O3, Al (OH) 3, Fe2O3, Ba (NO3)2, MgSiF6-6H2O and Na2B4O7-10H2O. Through composite physical / chemical technology, the additive can improve coal combustion, reduce thermal loss in the smoke and the slag, improve boiler efficacity, save coal resources, improve thermal conductivity of boilers, and prolong the service life of boilers.

Description

Technical field: [0001] The invention relates to a coal-saving composition, especially a coal-saving additive, and also provides a manufacturing method thereof. Background technique: [0002] my country is a big coal producing and consuming country, and coal is widely used in many industrial and civil industries. According to data, coal accounts for about 70% of my country's energy consumption. From the perspective of usage, 80% of coal consumption is directly used for combustion, and coal-fired industrial boilers are my country's SO 2 The second largest source of pollution, after coal-fired power plants. It has brought serious harm to the ecological environment and the national economy. Control coal-fired industrial boiler SO 2 Pollution, on the control of my country's atmospheric environment SO 2 is of great significance. Applying traditional control methods and technologies, namely cyclone dust collector, water film dust collector and flue gas desulfurization techno...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10L9/12
Inventor 李军
Owner 李军
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