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PE sintered filter production process

PE sintered filter is a common water treatment filter, it shows that common color is white, hard, has good filtering performance, could see that he is from the meaning of sintering, and so is the sintering process, that what is sintering process, small butterfly today with everybody to know!

sintering process is according to the material characteristics of the selected process and the system of sintering process. It for sintering production yield and quality has a direct and important influence. This process according to the inherent law of sintering process to select the proper technological process and operation system, using modern scientific and technological achievements, to strengthen the sintering production process, access to the advanced technical and economic indicators, ensure to achieve high yield, high quality and low consumption. The production process include raw material, the ash, mix, screening crushing and solvent fuel crushing screening, ingredients, mixing, ignition, convulsions sintering, ventilation cooling, crushing, sieving dust removal of such links.

1. Low temperature stage of presintering

at this stage mainly metal reply and adsorption gas and moisture volatilizes, compact in the decomposition of forming agent and ruled out.

2. Medium temperature heating sintering stage started to recrystallization,

this stage within the particles, the deformation of grain was restored, reorganization of new grain, on the surface of the oxide reduction at the same time, the grain interface formed sintering neck.

3. High temperature heat preservation complete sintering stage

the diffusion and flow fully in this stage and nearing completion, formed a large number of closed pore, and continue to shrink, the pore size and pore has decreased, the total density of sintered body increased significantly.

the sintering production process

1. Concept of sintered

the various powdered iron raw material, match into the right amount of fuel and flux, adding suitable amount of water, after mixing and pelletizing on sintering equipment has brought a series of physical and chemical changes in the material, the process of mineral powder particles cohere into pieces.

2. Process of sintering production process

widely used in the production of belt type convulsions sintering production of sinter. Process of sintering production process is shown in figure 2 & ndash; 4. Mainly include the sintering material preparation, the ingredients and mix, sintering and product processing, etc.

convulsions sintering process

the sintering raw material to prepare

(1) iron material

high iron content, granularity & lt; 5 mm ores, iron concentrate, blast furnace dust, mill scale, steel slag, etc.

general requirements high iron grade raw material, composition is stable, less impurity.

request flux of (2) the flux of effective CaO content is high, less impurity, stable composition, water about 3%, more than 90% of the grain size is less than 3 mm.

add a certain amount of dolomite in sintering material, the sinter contains proper MgO style, has good effect to sintering process, and can improve the quality of sinter.

(3) fuel mainly for coke powder and anthracite.

high demand for fuel is a fixed carbon content, low ash, low volatile, low sulfur, the composition is stable, water cut is less than 10%, more than 95% of the grain size is less than 3 mm.

the general requirements of incoming sintered materials are shown in table 2 & ndash; 2.

incoming sintering raw materials general requirements of the

ingredients and mix

1) ingredients ingredients to obtain stable chemical composition and physical properties of the sinter, meet the requirements of blast furnace smelting.

the ingredients volume batching method and quality ingredients commonly used method.

volume batching method is based on the material bulk density is constant, the quality of the raw material and is proportional to the volume of this condition. Poor accuracy.

the quality ingredients method is according to the quality of the raw material ingredient. Than volumetric method is accurate, easy to realize automation. Mixed

2.

objective to the composition of sintering material mixing, the water right, easy to balling, good for partical size of sinter mixture, in order to guarantee the quality of sinter and increase production.

mixing water wetting, blending and pelletizing.

according to the nature of the raw material is different, can use a hybrid or secondary mixing two kinds of processes.

the purpose of a mixed wetting and blending, when heated to return mine still can make the material preheat.

the purpose of the secondary mixed continue blending, balling, to improve the sinter layer permeability.

with particle size 10 ~ Omm rich mineral powder sintering, due to the need of its grain size has been achieved balling, adopt a hybrid, hybrid time about 50 s. 5 ~ 3 min.

above is simple introduction of PE sintered filter production process, if you want to know more information, welcome to contact us! Recommend

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