How to choose roots blower for conveying fly ash?

Pneumatic conveying formula, not a simple formula, not a bachelor's degree or above pneumatic conveying major, even given the formula will not be calculated, very complicated, the general two knives are based on experience to choose roots blower, the error is large.

Can roots blowers transport pulverized coal?

The simple formula really can't directly get the reasonable model parameters, and many powders have to run a program and go through the conveying experiment to get the reasonable model parameters.

The roots blower has good sealing, no pollution, reliable operation, and no pipe blockage, which can effectively improve the operating environment of the power plant. The roots blower has a small investment, which can replace the work of two bin pumps, and the equipment investment is reduced. The amount of maintenance in the later stage is small, which saves the maintenance cost.

Once installed, debugged and operated, it only needs to be checked regularly, and there is almost no maintenance in the later stage.

Small size, high pressure, easy maintenance.

Pneumatic ash conveying equipment, changed the traditional manual or forklift open-air transfer mode, effectively solved the problem of on-site dust, improved the working environment of workers, is also a big move of environmental protection factory, the current domestic use is dilute phase low-pressure pneumatic ash conveying technology, the equipment is the best choice for power plant fly ash conveying production enterprises, including the equipment used in ash storage tank, pressure relief bag filter, manual gate valve, electronically controlled pneumatic gate valve, dragon iron roots fan, electric heater, vacuum pressure release valve, high level gauge, dry ash bulk machine, etc.

Ash storage tank, pressure relief bag dust collector, manual gate valve, pneumatic gate valve, roots fan, electric heater, vacuum pressure release valve, high level gauge, dry ash bulk machine, etc.

Fly ash is the fine ash captured from the flue gas after coal combustion, and fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants is: SiO2, Al2O3, FeO, Fe2O3, CaO, TiO2, etc.

Fly ash is one of the industrial waste residues with large emissions in China, and with the development of the power industry, the emission of fly ash from coal-fired power plants is increasing year by year. If a large amount of fly ash is not treated, it will produce dust and pollute the atmosphere; If discharged into the water system, the river will be silted up, and the toxic chemicals in it can also cause harm to humans and organisms. In addition, fly ash can be used as an admixture for concrete.

The material particles are large, the shape is not standardized, and the material will be blocked in the nozzle and manually stirred from time to time. Altering the vacuum fan may not work. Because the negative pressure does not increase.

I know this point better, the pipe chain conveyor produced by our company is suitable for all kinds of powder materials, small granular materials, and its advantages are also particularly obvious, such as multi-point feeding and discharging, full closed transportation, flexible layout, etc., and viscous materials and high-temperature materials can also be transported, generally suitable for fine chemical industry, building materials industry, food industry, mining, pharmaceutical industry, etc. If you are interested, you can go to my homepage to see the articles introduced.

The low-pressure screw air compressor is better for split conveying, and the low-pressure powder conveying screw machine is suitable for concrete stations, mixing stations, bulk cement transfer warehouses, cement plants, pulverized ore plants, fly ash warehouses, tank ship unloading, steel plants, thermal power plants, food factories, and other powder conveying industries, and special external gas sources for environmental protection.

Advantages: low noise, no water, fast gas, high efficiency, continuous 24-hour operation, fully intelligent CNC electric cabinet, no need to add a gas tank refrigeration dryer. If you need to consult, Suzhou Shuoyong Electromechanical.

The air volume, full pressure, power, and speed of the fan are determined according to the calculation results. Posture attack is usually equipped with 9-19 type leakage centrifugal fan. The existing XQ type and XQ type chute high-pressure fans, the flow rate and full pressure for air conveying chutes can be well matched, ** is relatively high, it is recommended to give priority to the selection.

Centrifugal fans are generally used in forging furnaces and high-pressure forced ventilation, and can be widely used to transport materials, air and non-corrosive, unnatural, and non-viscous gases. The temperature of the medium is generally not more than 50 degrees Celsius, and the maximum is not more than 80 degrees Celsius.

Roots blower is constant air volume transportation, high operating cost, such as 9-19 and other Suiga type high-pressure fan, regardless of the use cost and maintenance is desirable, not to mention the chute can not be used for high viscosity, for better fluidity of materials to convey imitation family defense, such as cement, fly ash, etc.

The specific model depends on your traffic requirements. You can refer to:

Make your selection.

Ash storage tank, pressure relief bag filter, manual gate valve, gas early fiber moving gate valve, roots fan, electric heater, vacuum pressure release valve, high level gauge land and air imitation, dry ash bulk machine, etc. Fly ash is the fine ash collected from the flue gas after coal combustion, and fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants is:

sio2、al2o

What does density mean, is fly ash?

It is also necessary to know the amount of fly ash to be transported per hour.

The conveying capacity is 10m3 h, and the density of fly ash is set; The delivery concentration is 1:1; The conveying wind speed is 26m s.

It is known that the horizontal distance of conveying is 2m, and its resistance is; The vertical distance is 2m and its resistance; Let the number of elbows in the pipeline be 2, and its resistance is.

Calculate the diameter of the conveying pipeline is 260mm, the air volume of the fan is greater than or equal to 5000m3 h, and the pressure of the fan is greater than or equal to.

Air sweep mill, working principle: the feeding equipment will send the raw materials into the mill feeding device, while the material falls, the air inlet pipe sends hot air, and the raw materials enter the simplified body through the hollow shaft by its tilt and downward sliding function. A certain number of grinding bodies are installed in the cylinder, because the rotation of the cylinder brings the grinding body to a certain height, and then the impact energy and friction energy when it falls are used to crush and grind the raw materials, and at the same time that the raw materials are crushed and grinded, the fine powder that has been ground is drawn out of the mill together with the hot air that has been heat exchanged.

The mixture of fine powder and hot air is separated by a special separator and sent back to the mill for re-grinding. The mixture of the qualified fine powder and the hot air is fed into the cyclone dust collector, where the fine powder is separated from the hot air.

Fly ash can be used with a ball mill.

First of all, you need to understand what this fly ash is, fly ash is actually the raw coal we use about 6500 kcal or more after being crushed by a crusher, about the same as white flour.

shape of such objects. It is then transported to various steel mills, or rather. The thermal power plant removes this kind of fly ash is still more, and then uses the induced draft fan to hammer this faceless into the combustion chamber, and the energy generated by the instantaneous high temperature is several times higher than the energy of ordinary burning coal, but the combustion speed of this phenomenon is relatively fast, so it produces instantaneous fly ash, and there is an induced draft fan at this time.

Therefore, it mainly has this kind of ash charcoal produced after the combustion of raw coal, but relatively speaking, it is a white surface shape, this kind of object, if it is stirred with water, it will dissolve, and it will reduce the grade of cement. Therefore, the current fly ash treatment is also a big problem, and under normal circumstances, fly ash and white ash are used on the road to produce this chemical reaction.

Later, add some cement, and then add some stones and sand, so that it is relatively possible to do road foundation, so it cannot be used in the mixing plant, the main reason is that it has some chemical reactions with cement.