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Material seal pump . Professional manufacturer of pneumatic conveying equipment
Pneumatic Conveying Powder Conveyor
Pneumatic Conveying Powder Conveyor

Pneumatic Conveying Powder Conveyor

Pneumatic conveying powder conveyer, also known as SFJ high-efficiency and low-consumption powder material conveyer, is widely used for conveying powdery materials such as fly ash in power plants, cement in cement plants, alumina powder in alumina plants, and raw meal powder in pneumatic conveying In the whole conveying process, there is no leakage of powdery materials, so it has been widely used in manufacturers of powdery materials.

Features of pneumatic conveying powder conveyor
1. Equipment investment is small. One powder conveyor can replace two or four warehouse pumps, reducing equipment investment.
2. Low pressure conveying, working pressure 0.02-0.1MPa, small pipeline wear, good equipment tightness, reliable operation, no blockage and leakage, and long service life.
3. Energy saving and consumption reduction. Roots blower is used as the air source, and the power consumption is small. After the system is installed, commissioned and put into operation once, it basically needs no operation, and there is almost no maintenance. The maintenance workers only need to check regularly.

Working principle of pneumatic conveying powder conveyor
Pneumatic conveying-powder conveying machine uses the energy of air flow to convey granular materials along the conveying direction of powder in a closed pipeline. It is a specific application of fluidization technology. Pneumatic Conveyor-Powder Conveyor Device has a simple structure and convenient operation. It can be used for horizontal, vertical or oblique conveying. During the conveying process, it can also perform physical operations such as heating, cooling, drying, and air classification of the material. Some chemical operations. Compared with mechanical conveying, pneumatic conveying powder conveying machine has obvious advantages of energy saving and consumption reduction. Mechanical conveying consumes large energy, particles are easily damaged, and equipment is also vulnerable to abrasion. Materials with high water content, adhesion or static electricity generated during high-speed movement are not suitable for powder transportation.

Installation, operation and maintenance of pneumatic conveyer
Pneumatic conveying-powder conveying machine is generally installed at the bottom of the warehouse, and it should be fixed firmly, and the inlet and outlet ducts must be fixed. At the same time, ensure that the air pipe is on the horizontal line, and the joints should be sealed to ensure that there is no air leakage.

When a new pneumatic conveying pump is put into operation or the material to be conveyed is changed, a sufficient amount of lubricating oil should be added to the outer cavity of the movable air pipe, and then the movable air pipe should be adjusted by the actuator to change the distance between the nozzle and the nozzle. Debug to choose a more ideal position and write down the scale and start normal work. When shutting down, first close the nozzle and the nozzle and stop the wind after all the material in the pipe is sent.

Comparison of the cost of using a powder conveyor and a single silo pump (using a 50MW unit as an example to transport 350m in length)

project Single Silo Pump Powder conveyor

Equipment investment

200 thousand

2 × 68,000 yuan

Motor Power

264KW

90KW

Annual power consumption

350,000 yuan

121,000 yuan

Wind pressure

0.6Mpa

0.04Mpa

Consumables and pipeline costs

130,000 yuan

no

operator

6 people

2 people

Annual salary

50,000 yuan

20,000 yuan

Useful life

4 years

10 years

Dust Poor environment good

Significant energy saving effect
1. Annual cost savings (20m 3 air compressors and warehouse pumps are needed, powder conveyors need one Roots blower, power is 90KW, efficiency is 80%, annual work is 6000 hours, and electricity price is 0.28 yuan.)
Annual electricity cost of single tank pump
2 × 132 × 0.8 × 6000 × 0.28 = 350,000 yuan
Annual electricity bill for powder conveyor
1 × 90 × 0.8 × 6000 × 0.28 = 121,000 yuan Single-storage pump switch to alumina powder conveying equipment to save 229,000 yuan in electricity costs.
2. Save operating costs 13 + 5-2 = 160,000 yuan.
3. Reduce equipment investment by 20- (6.8 × 2) = more than 64,000 yuan. The data shows that two powder conveyors can save more than 300,000 yuan each year by replacing six warehouse pumps, which not only reduces labor intensity, increases economic benefits, but also protects Up the working environment.

Specifications and main technical parameters of powder conveyor

model

Feeding tube diameter (mm)

Conveying capacity (m 3 / h)

Air demand (free) (m 3 / min)

Demand wind pressure (Kpa)

Motor power (Kw)

Conveying equivalent length (m)

LFB75 108 1-3 3-9 40-98 3-15 30-500
LFB100 133 3-7 9-20 40-98 15-45 30-500
LFB150 159 7-13 20-36 40-98 45-75 30-500
LFB200 219 13-18 36-50 40-98 75-90 30-500
LFB250 273 18-25 50-70 40-98 90-110 30-500
LFB300 325 25-35 70-98 40-98 110-132 30-500
LFB400 426 35-45 98-130 40-98 132-220 30-500

Installation, operation and maintenance of pneumatic conveyer

The powder conveyor is generally suitable to be installed at the bottom of the warehouse. It should be fixed firmly and the inlet and outlet ducts must be fixed. At the same time, ensure that the air pipe is on the horizontal line, and the joints should be sealed to ensure that there is no air leakage. When a new pump is put into operation or the material to be conveyed is changed, a sufficient amount of lubricant should be added to the outer cavity of the movable air duct, and then the movable duct is adjusted by the actuator to change the distance between the nozzle and the nozzle. Select a more ideal location and write down the ruler's scale at the same time to start normal work. When the machine is stopped, the nozzle and the nozzle should be closed and the material in the pipeline should be completely sent before the air can be stopped. The material-sealed pump powder conveyor can only work normally when the material surface has a certain height. If the material level is lower than a certain value, the conveying capacity will be reduced. If the pipeline is blocked due to sudden gas stoppage or other reasons, the nozzle and nozzle should be closed and blown until the pipeline is unobstructed.

Powder conveyor

In short, the use of high-efficiency and low-consumption powder conveyors in the thermoelectric industry to eliminate single-silo pumps is an inevitable result of technological development. It can be expected that in the near future, this technology will replace the warehouse pump and take the lead in the thermoelectric industry, raise the comprehensive utilization level of fly ash to a new height, and create more economic and social benefits for the enterprise.

Pneumatic Conveying Powder Conveyor

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