A few questions about gas generators 20

1.What is a stationary gas generator?

At present, the state has only formulated one standard for gas generators, which is JB T 7327-2007|Atmospheric fixed-bed gas generator.

2.How to distinguish between water gas and pulverized gas?

There are two types of gas generators: mixed gas generators and water gas generators, and it is not very clear what pulverized gas is.

3.Is the use of one-stage gas generators currently restricted or prohibited?

If you can see the standard set by this country JB T 7327-2007|In the case of atmospheric fixed-bed gas generator, it can be clearly seen that whether it is water gas or mixed gas generator, it is divided into one section and two stages, so there is no restriction or prohibition, but according to the use requirements to choose different furnaces, single and double stages have their own advantages and disadvantages, can not say which is good, which is bad.

4.What to do with the coal tar produced?

Coal tar can be used first, and it is generally not processed if the amount is small.

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Answer: The gasification of the atmospheric fixed-bed gas generator is carried out under two specific conditions, one is that the gasification process is carried out under atmospheric pressure, and the working pressure is between 3-8 kPa, which is called atmospheric pressure because it is close to atmospheric pressure. Second, the material layer is stacked on the grate, and the material layer should be maintained at a certain height during the gasification process, which is the meaning of the fixed bed.

The fixed bed is relatively fixed, and its fixed thickness is maintained by dynamic coaling and ash extraction.

The gas generator furnace is not in normal condition, and its precautionary measures:

1. Ensure that the check valve is reliable and sealed.

2. After the power failure, the amount of steam should be increased to send steam to the furnace to maintain the positive pressure in the furnace.

3. In case of power failure, the air valve should be closed as soon as possible to cut off the air entering the bottom of the furnace, and the road air entering the furnace will cause an accident.

4. Depending on the pressure of the gas outlet, pull out the dispersion, reduce the pressure at the bottom of the furnace, and prevent the gas from flowing back to the blower box.

One of the explanations for the occurrence of furnace coal disturbance gas containing gas. The main components are carbon monoxide, hydrogen, nitrogen, carbon dioxide, etc. There are two types: air gas and mixed gas.

The former is made by the interaction of coal and air; The latter is prepared by the action of air and steam from coal, and the calorific value is higher than that of the former. It is used for the heating of metal heating furnaces, glass kilns and coke ovens, and can also be used as a blending gas for high calorific value gas.

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Han Explanation of Coal Gas The gas made from coal is explained in detail Shen Yuan. Pyrotechnic gases produced when fuel is burned. Tang Feng Zhen "Southern Fireworks: Night Pearl":

A scholar married Chen Kuan and Li Shi Gongren, and the night fire was evil. ”.The main components of the gas obtained from dry distillation coal are hydrogen, methane, ethylene, carbon monoxide, and a small amount of nitrogen

The adjustment of the insulation temperature of the gas generator is an important part of the operation of the gas furnace, the saturation temperature is well controlled, the slag in the furnace is less, the gas production is large, and the gas generator works smoothly. The saturation temperature is proportional to the steam content, the higher the temperature, the higher the steam content, so the saturation temperature should not be too high, which is easy to cause the slag layer to be too wet, affect the ventilation and cause insufficient combustion reaction.

The adjustment of saturation temperature should be adjusted according to different furnace conditions, if the fuel flushing belongs to weakly cohesive coal, the saturation temperature should be increased appropriately, which can reduce the slag rate, and the slag formation situation in the gas generator furnace is often related to the low saturation temperature. On the contrary, if the saturation temperature is not well controlled, it will cause the furnace condition to decrease and the coal consumption to increase.

The gas generator belongs to the industrial furnace and is an industrial furnace that effectively refers to the use of gas. The main raw material of the gas generator is coal, and its working principle is to decompose the coal mountain through heat through the action of heat, and the hydrocarbons contained in the gas change, and the gas released is mainly methane, hydrogen, hydrogen sulfide, and a small amount of nitrogen and carbon dioxide can also be generated. The gas generation furnace has a high thermal efficiency and can be used for industrial production such as forging and boiler stoves, as well as for heating and cooking.

Yes, gas generators are industrial furnaces. A gas generator is a special type of industrial furnace used to make various industrial gases. It consists of a large number of consumable parts, such as furnace body, burner, sprinkler head, and ventilation tarding machine.

It can burn carbon-containing gases, such as coal, wood, etc., into various Yudancong gases, and then process them into gas for industrial use through adjustment, purification and other processes.

1. The qualified raw coal is lifted from the electric hoist to the first silo of the main plant for coal storage, and then added to the furnace by the double-drum hydraulic solder, the coal is heated and distilled by the gas from the gasification section, and the coal in the semi-coke state after the dry distillation reacts with the gasifier (air, steam) in the gasification section, and the gas generated in the gasification section is divided into two parts, one part is released from the gas outlet of the lower section of the two-stage furnace through the cyclone dust collector, and the other part is mixed with the dry boil gas through the central pipe and the gas outlet of the upper section is baked.

2. The outlet gas of the lower section enters the forced air cooler after being cooled and dedusted by the cyclone dust collector, and continues to cool down the dust and then enters the intercooler for further cooling. After the upper outlet gas enters the electric tar precipitator for decoking, it directly enters the intercooler and mixes with the lower gas to mix.

The composition of blast furnace top gas in blast furnace production is a direct reflection of the state parameter of the smelting process, the main basis for adjusting the load of blast furnace operation, and the utilization of coal gas in the smelting process, which is crucial to the load balance of the blast furnace. Therefore, blast furnace smelting production at home and abroad want to understand and master the composition of blast furnace top gas in time to obtain the best technical and economic indicators and guide blast furnace production. The content of CO, CO2 and H2 in the composition of blast furnace gas are the three most important parameters, and by analyzing these three parameters, the furnace condition can be accurately judged.

The top gas is.

In the process of ironmaking, the air enters the blast furnace after being heated by the hot blast furnace, and this hot air and coke are used to produce carbon dioxide and carbon monoxide, and carbon dioxide and hot coke produce carbon monoxide, and carbon monoxide reduces the iron element in the iron ore in the rising process to make it pig iron, which is the chemical process of ironmaking. The molten iron is temporarily retained at the bottom of the furnace and released at regular intervals for direct steelmaking or ingots.

At this time, there is a large amount of excess carbon monoxide in the blast furnace gas, and this mixed gas is "blast furnace gas".

According to the analysis of the furnace condition of the top gas, it is generally based on the concept of gas utilization, that is, the content of CO2 in the top gas is higher than the amount of CO+CO2, simply put, the higher the CO2 content in the top gas, the lower the CO content, indicating that the more CO is used for the reduction reaction, the higher the utilization rate of the gas, the better the furnace condition, and the higher the economy of smelting. Generally, the utilization rate of blast furnace gas is 40-50%. The utilization rate of coal gas can be improved by adjusting the distribution of the distribution of coal gas.