1 overview
HTW type rotor weighing scales applies to cement feeding coal continuous gravity calcined technique weighing. Since the start of the coal dust, weighing and was discharged directly transferred pneumatic conveying pipeline this process in a simple structure, all closed to finish feeding machine.
2.operating mode
The rotor feed weigh by gravity operation level of rotor operation principle (see chart 1). Disperses the shape material by the rotor (points) case directly from the warehouse, weighing in discharged into the area, measuring straight into the pneumatic conveying pipeline, then provide transportation by air blower to process.

Figure 1 operation principle of rotor feeding scales

Weighing shaft A - A material discharged across, pneumatic pipe joints between rotor and collaterals, which means it can make pressure fluctuations of any secondary stress reaction fully compensated, and make the measurement results of material unaffected. Whenever the rotor weighting materials by weighing device by weight measuring down. B, Material weight and location are stored in feeding section of electronic systems in scale, that is to say, in the material discharged before each part already know the rotor under conditions. In order to make the predetermined value and stored in memory of the quantity of materials in adaptation，in the unloading point of rotor position requirements in advance, and has calculated by driving devices. Through the first division, the control principle of the rotor feed weigh can give any fluctuations and short-term correction of high accuracy.
3 equipment structure
Equipped with the rotor oval rotor shell (1), the driving device and air conveying system in distributed support with feed weigh connection device (3) the basic framework (2), and hanging in weighing equipment (4) (see chart 2).
Supported by feeding scale formation of A device, it axis, the position through loose connector (5), (6) and air pipe materials imported (7) center. Because of the rotor often need to withstand 10 of pressure, impact level rotor (8) in a closed at the oval rotor supported on the seal of the shell plate. Disperses the shape material in gravity flow from bin, the rotor rotating rotor in C process carries material into the unloading point D discharging.
Fan provides canging air evenly distributed in three rows of indoor, 18-40 MB rotor speed between/s of each row materials from ensuring rotor indoor discharged. In materials imported and discharging port with many rotor room between disjunctive space, seal axial adjustability ensure material discharged between air pipe and good sealing condition. This means the transmission distance can reach the blast-caused above.
Because there are numerous, and according to the rotor room: the control range of Settings, allowing the rotor feed weigh in feed quantity of low, also can be obtained without real pulsed feeding.
The rotor drives (9) for VFD, if the three-phase motor control more usable dc motor drive.
This company for simple maintenance and rotor weighing of wear parts are given special attention. Through an organic whole repeatedly with the rotor weighing device, without disassembly of the repair the system or use any equipment or special tool for ascension can in the shortest possible time replacement parts. In addition, the choice of materials from the long service life and facilitate processing. For example, from coal of practical experience shows that wear parts of life can reach several years.
4 using instruction
The rotor feeding scales can only be used for ordering instructions and data stated in the table, including the disperses the shape material of particle materials and moisture. Only by pneumatic conveying can use compressed air.
! All other use, which are considered to be in violation of the provisions of the equipment damage caused, manufacturers disclaim all responsibility. Operators to take full responsibility.
! If there is heavy, all moving parts or obligations under failure and preservation.

Figure 2 structure of rotor feeding scales