1. The rotational speed of the rotor speed of the rotor impact crusher is the most important parameter, which directly affects the crusher's crushing efficiency, the crushing ratio and capacity. The speed of the rotor is determined according to its linear velocity v:
n=60Ï…/Ï€D(r/min)
Where D is the diameter of the rotor (m); Ï… is the linear velocity of the rotor (m/s).
The rotor linear speed is the same as that of the hammer crusher . It is generally selected within 15~80m/s, 15~40 m/s for coarse crushing and 40~80 m/s for fine crushing.
2. Productivity The productivity of a counter crusher is generally calculated according to the following empirical formula:
Q=60K1C(h+a)dbnδ(t/h)
Where, K1 - correction factor, generally takes O.1; C - the number of hammers on the rotor; h - the height of the hammer (m); a - the distance between the hammer and the counterattack (m); - the size of the ore discharge (m); b - the width of the hammer (m); n - the rotational speed of the rotor (r / min); δ - the loose density of the ore (t / m 3 ).
3. Motor Power The motor power of the impact crusher is currently calculated based on empirical formulas derived from production practices or experimental data.
(1) According to production practices:
P=KQ(kW)
Where Q, the crusher production capacity (t / h); K - specific power consumption (kW / t), usually for medium hardness limestone K = 0.5 ~ 2; for coal K = 0.8 ~ 1.5; Take the lower limit when crushing, and take the upper limit when crushing.
(2) According to experimental data:
P=K 0 Qi k2 (kW)
Where, Q - the capacity of the crusher (t / h); i - the crush ratio; K 0 - the proportional coefficient. Medium hardness material is taken as 0.026.
The double-rotor impact crusher is the sum of the powers of the two motors. Generally, the power consumption of the motor of the first-stage rotor is about 0.6-0.7 times that of the motor of the second-stage rotor.
Steel wire welding machine
Steel wire welding machine wire drawing machine adopts servo motor wire drawing device to make wire drawing size more standard and accurate.
Variety of weldable mesh.
Zonal grid adjustment related parts are adjustable, by the adjustment of the grid microcomputer control, can set up different grids.
Performance characteristics of steel wire welding machine: the length of warp and weft wire of tunnel support network welding machine are pre-cut by straight cutting machine. The warp is manually placed to the feeding mechanism and automatically entered by the servo feeding trolley without manual placement.
The weft wire is manually placed into the discharging device by the turntable stripper and dropped by a single one.
The welding system adopts pulse triggered thyristor with 8-way voltage regulation, and 8-way output can be combined at will, so as to reduce the impact on power transformer and effectively improve efficiency.
The machine power system is divided into pneumatic type and mechanical type.
The whole machine adopts PLC centralized control. The touch screen is the external data input part. All parameters can be input by the touch screen.
Rebar Mesh Welding Machine
Wire Mesh Welding Machine,Fence Mesh Welding Machine,Rebar Mesh Welding Line,Wire Butt Welding Machine
Shandong Luteng Building Equipment Co., Ltd. , https://www.lutengmachinery.com
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