How much is the screw machine used to unload ore powder

1. The air volume of loading is a pressure value adjusted by yourself. According to the amount of air discharged by pressure,
for example, the mean of the displacement of 8kg in the parameter,
the displacement of 10kg, the pressure of unloading is higher than that of loading, because it is higher than the pressure of loading that the inner exhaust of air compressor can be unloaded. Power consumption
calculated according to the power of the motor, 22KW full load working hour is 22 degrees of electricity
and so on, frequency conversion or permanent magnet frequency conversion air compressor can save electricity cost
how to save depends on the specific air compressor no-load time is not high
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Baode permanent magnet variable frequency screw air compressor

2. Ha ha, we should pay attention to that. Some mineral powder is poisonous or corrosive. Just be careful.

3. Unknown_Error

4. According to this situation, the air tank is really small
the functions of the air tank in the screw machine system are: buffering, energy storage, cooling, water removal and recing the frequent start-up of the machine
it is suggested to increase the air storage tank and the machine sleep standby time to avoid frequent loading and unloading
the screw air compressor of 7.5kW is recommended to be replaced with 0.3m3 air storage tank under the condition of normal enough air.

5.

First of all, it should be noted that the loading and unloading of screw or reciprocating air compressor should not be too frequent, which will cause certain damage to the main motor and other wear parts, such as the bearing intake valve assembly and minimum pressure valve of the main motor

there is an upper and lower limit for the loading and unloading pressure of the air compressor, that is, the range of loading pressure and unloading pressure should not be less than 0.08mpa, which cannot be adjusted

there is an upper and lower limit value for the loading and unloading pressure of the air compressor, that is, the range of loading pressure and unloading pressure can not be less than 0.08mpa, and you cannot adjust it if it is smaller than this range

for constant frequency air compressor, it is better to keep the loading and unloading pressure in the range of 0.1MPa

if you need a pressure of 0.7MPa, then your loading pressure can be set to 0.7MPa, and the unloading pressure is better to 0.8MPa

so that your lowest gas pressure is 0.7MPa, so that the machine will not load and unload frequently

if possible, it is better to use the variable frequency screw air compressor, which can maintain a stable air pressure according to the use requirements, so as to rece the electric energy wasted by the pressure rise of 0.7-0.8 kilogram

Compared with reciprocating piston refrigeration compressor, screw refrigeration compressor has a series of advantages, such as high speed, light weight, small volume, small floor area and low exhaust pulsation

The screw refrigeration compressor has no reciprocating mass inertia force, good dynamic balance performance, stable operation, small base vibration and small foundation

The structure of screw refrigeration compressor is simple, the number of parts is small, and there are no vulnerable parts such as gas valve and piston ring. Its main friction parts such as rotor and bearing have high strength and wear resistance, and good lubrication conditions, so it has less machining capacity, low material consumption, long operation cycle, reliable use and simple maintenance, which is concive to the realization of operation automation

Compared with the speed compressor, the screw compressor has the characteristics of forced gas transmission, that is, the discharge volume is almost not affected by the discharge pressure, the surge phenomenon does not occur when the discharge volume is small, and the high efficiency can still be maintained in a wide range of working conditions

5. Slide valve adjustment is adopted to realize stepless energy regulation

The screw compressor is not sensitive to liquid inlet and can be cooled by oil injection, so under the same pressure ratio, the discharge temperature is much lower than that of piston type, so the single-stage pressure ratio is higher

There is no clearance volume, so the volumetric efficiency is high

6. 1. The difference between the upper and lower limit of the normal pressure is 2kg. 2. The gas consumption on site is not stable

7. Because most screw machines use power frequency motors, that is to say, once the star angle switch is completed, the compressor motor will work with a fixed number of revolutions. But the load is the cooling capacity. According to the working state of the machine, sometimes it doesn't need 100%, so the slider inside the compressor will be used to increase or decrease the cooling capacity, that is, increase or decrease the load

8. The unloading speed of screw air compressor is related to the diameter of vent pipe and the inlet speed of unloading inlet valve. If the inlet valve is a butterfly valve, the unloading speed can be controlled by adjusting the butterfly valve. It is normal that the unloading sound of screw machine itself is a little louder than that of load. If it is much larger, there are many factors that can cause it: 1. The main engine head has its own problems, and the factory clearance is not adjusted properly. 2. Improper design and installation of the machine, resulting in resonance of the machine ring unloading.

9. Load full load power = output power (kw) / motor sales × The service factor is about 120%. Unloading is 60-50%.

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