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Powdery material conveying system

Powdery material conveying system

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The pressure is 0.04Mpa-0.1Mpa

Small investment and good environmental protection

[Application]: power plants, boilers, biomass power generation, fly ash, lime powder, charcoal powder, cement, chemical industry, etc.

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Overview of powder material conveying system

Tips: The specific scheme and equipment application need to be professionally customized according to the actual situation of the user! 24-hour technical consultation hotline 0371-64560789!
Fly ash pollution has become a single source of solid pollution. The random discharge of ash storage yards in thermal power plants is not only huge in scale, but also produces environmental damage such as fly ash constituents (heavy metal substances, radioactive substances) pollution, air pollution, water pollution, soil pollution, human hazards, and address disasters. And social impact.
With the improvement of national environmental protection standards and the comprehensive utilization of fly ash, it has become the current development trend for power plants to change from hydraulic ash to dry ash. In recent years, silo pumps are mostly used for dry ash transportation. However, the current operating conditions of the use of silo pumps due to high air pressure, large power consumption, high maintenance costs, etc., both pollute the environment and waste resources, causing inconvenience to the storage and transportation of coal ash. The powder material conveying system developed by our factory has the characteristics of low wind pressure, simple operation, and small maintenance. It is widely used in the power, cement, chemical industry and other industries. It is an ideal equipment for conveying various powder materials.

Working principle of powdery material conveying system

Problems with single silo pump and negative pressure conveying fly ash
1.High power consumption and severe wear
Because the warehouse pump uses 0.4Mpa-0.6Mpa high pressure air supply, the elbow pipe is severely worn. Wear-through welding repair, frequent replacement, especially the discharge valve, feed valve, exhaust valve wear seriously, often stuck, coupled with the three major pieces of pneumatic damage and high maintenance costs, workers rush to repair the pump body, high temperature, environment Harsh and labor-intensive.
2.Complicated operation
Due to the automatic control of the material level and time of the warehouse pump, the wiring of the console is complicated and slightly problematic, involving multiple professionals from the three major departments of electrical, thermal engineering, ash removal and maintenance to the ash yard, delaying the maintenance time and bringing a lot of trouble to the management It is difficult to guarantee the normal production.
3. Extremely poor environment
Due to the above reasons, in order to ensure the operation, the frequency of emergency repairs is large, the equipment leaks ash everywhere, endangers the environment of the factory and the living environment of the surrounding people, and has a great impact on civilized production.
4. Affect comprehensive utilization of fly ash
In order to carry out the comprehensive utilization of fly ash, the company invested heavily in a fly ash production line. However, due to frequent damage to the conveying system, normal production of the wind separation equipment system could not be guaranteed, and the ash pipeline could not be sent out, which affected users' ash supply and damaged the corporate image. And benefits.
5. Affects the normal operation of the sedimentation tank
After the design of ash and slag separation and the damage of the warehouse pump, it had to be flushed with water to the sedimentation tank, which caused insufficient slag flushing water and tight water supply. Because of the small ash fineness, it was easy to cause blockage of the network management, and the valve and ash slag pump pipelines were scrapped , Causing serious losses of the entire slag flushing system.
6. Negative pressure conveying has less wear and tear, but after a few years of use, the air volume gradually decreases, resulting in the phenomenon of insufficient delivery.
Fly ash transportation site
Advantages of using a material-sealed pump
1. Equipment investment is small. One material-sealed pump can replace two warehouse pumps, reducing equipment investment.
2. The gas pressure of the material seal pump is 0.04Mpa-0.1Mpa, which reduces the gas supply pressure, saves air consumption, and reduces the motor power.
3. Reduced maintenance costs. 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.
4. Low pressure conveying, the equipment has good sealing performance, reliable operation, no pipe blocking phenomenon, and the environment has been improved.

(According to 50MW unit as an example, the conveying length is 350m)

project Single Silo Pump Sealed pump

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, warehouse pumps are required, material sealing pumps need a 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 cost of material seal pump
1 × 90 × 0.8 × 6000 × 0.28 = 121,000 yuan. Switching from single-tank pump to material-sealed pump can 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 material-sealed pumps replacing six warehouse pumps can save more than 300,000 yuan each year, which not only reduces labor intensity, increases economic benefits, but also protects Up the working environment.


Technical Parameters

The use of high-efficiency, low-consumption, sealed pumps in the thermoelectric industry to eliminate single-tank 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.
Powder material conveying material sealing pump equipment
Fucheng powder material pneumatic conveying equipment uses gas as a carrier, which is an economical and labor-saving transportation method in enterprises. First of all, it can realize full automation, which effectively improves the labor production efficiency of the enterprise, and in the process of manual transportation with the past, the problem of environmental pollution can be well solved, and the material is protected from moisture and pollution. The transportation technology and process are the best performance of the enterprise's energy saving performance. It runs well in many thermal power plants across the country to achieve centralized, dispersed, large height, and long distance transportation. The transportation process is not affected by climatic conditions, which can ensure that materials are not Moisture is conducive to production and environmental protection, and has been well received by users of many thermal power plants, and has successfully improved the environment of thermal power plants, reduced environmental pollution, and promoted environmental protection.

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Pneumatic conveying system
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