Q:70 square meters of housing need to buy how much activated carbon

The quantity of activated carbon should be determined according to the content of formaldehyde and the quality of activated carbon.

Q:Why is coal spontaneous combustion?

Coal heap in contact with air oxidation occurs, and emit heat. Coal oxidation reaction occurs after the coal pile temperature increases. The coal temperature increases, and the speed of coal oxidation was accelerated. In this way, the temperature makes the coal pile increasing. When the temperature exceeds the coal self ignition when will the spontaneous combustion

Q:What is the structure of activated carbon?

Activated carbon porous, so the surface area is very large, a cubic centimeter of adsorption area of about one thousand square meters.

Q:Coal roadway, rock roadway and semi coal rock roadway is how to divide

Coal roadway, rock roadway and semi coal rock roadway:First, the coal lane: if the roadway section, the coal seam accounted for more than 4/5, known as the coal lane; specifically for coal mining and excavation of the roadway.

Q:What are the varieties of coal?

Category: coal is divided into major categories according to the degree of coalification and process performance.Category: a further subdivision of the categories according to the nature and purpose of the coal.

Q:We want to barbecue, but will not give birth to charcoal, tossing more than an hour did not point, please help my brother and sister, thank you ~!

Ignite combustible.On the first layer of carbon and two carbon.

Q:How long the activated carbon tank. It will fail, there will be any fault

. When the engine is running, the electronic control unit is used to control the on-off of the electromagnetic valve of the active carbon canister, and the fuel oil is sucked into the intake port of the engine by the vacuum degree in the air inlet pipe. The use of fuel vapor control can reduce the amount of hydrocarbons in the atmosphere and fuel saving.

Q:Water purifier filter CTO compressed activated carbon and carbon fiber

Compressed activated carbon filterCompressed activated carbon filter is made of superfine polypropylene fiber melting superfine fiber tangles. Depending on its adhesion and entanglement, randomly formed three-dimensional microporous structure in space, fiber connection does not need any adhesive, especially has the characteristics of gradient change of the radial fiber, is a complex porous type and fabric type filter medium.

Q:The main application value of coal and its impact on China's economy and the world

coking coalAlthough our country is rich in coal resources, coking coal resources are relatively small, coking coal reserves account for only 27.65% of China's total coal reserves. Coking coal includes coal (13.75%), (3.53%) coal, coking coal, lean coal (5.81%) (4.01%), the other is divided into grades of coal (0.55%); non coking coal includes anthracite (10.93%), coal (5.55%), alkaline coal (1.74%) do not pay, coal (13.8%), coal (12.52%), brown (12.76%), natural coke (0.19%), not the grades of coal (13.80%) and grade of coal is not clear (1.06%). Coking coal is the main purpose of coke, coke from the coking coal or mixed coal smelting from high temperature, generally about 1.3 tons of coking coal to refine a ton of coke. Coke is mainly used for steelmaking, is the main raw material for the production of iron and steel and other industries, has been hailed as the basic food industry".

Q:The basic situation of coal occurrence in coal mining area

1.1 coal seam corner coal occurrenceIn recent years, the large-scale mechanized production mode and formal mining layoutThe utility model causes the existing production area to leave the side angle residual block section and various small coal pillarsAngle coal at