Shanghai Meiyu products haveSoundproofing cement test small grinderConcrete and cement testing instruments, highway geotechnical testing instruments, asphalt waterproofing membrane testing instruments, chemical analysis instruments, testing machines, scales, test molds, screening tools, etc. We can provide a complete set of testing instruments and inspection equipment for highways, railways, bridges, mixing plants, municipal engineering, colleges and universities, and engineering quality inspection centers.Soundproofing cement test small grinderThe warranty period for the product is one year from the official delivery date. During the warranty period, the supplier shall provide timely and free maintenance services for all types of equipment malfunctions. Timely and free replacement of all types of parts damaged by non-human factors. If the equipment malfunctions during use outside the warranty period, the supplier shall promptly provide service to the ordering party and actively assist them in completing maintenance.

Related equipmentConstant loading cement pressure testing machine

Introduction:
It is a small ball mill for grinding cement clinker, which is an indispensable equipment for measuring the physical strength and chemical testing of cement clinker in cement plants. It can also grind other materials. The characteristics of this testing machine include compact structure, simple maintenance, easy operation, reliable performance, good sealing, low noise, and automatic stop.

Structural composition:

It consists of four parts: casing, grinding gear, support, control box, etc
★ Cover: Made of iron plate, it is divided into upper and lower boxes, with doors opening on the boxes. From here, the grinding door can be removed for operation. The bottom of the lower box is equipped with a hopper for storing ground materials. The mill shaft and cover are sealed with felt rings to prevent dust from flying.
★ Grinding cylinder: composed of simplified Chinese characters, grinding door cover, discharge plate, bearings, bearing seat, coupling, gear reduction motor, etc.
★ Support: It is a structural component composed of channel steel, which supports the grinding cylinder, cover, and has six Ø 28 bottom corner bolt holes at the bottom, used to fix safety equipment.
Control box: composed of buttons, jog switches, time relays, thermal relays, indicator lights, etc., used to control the start or stop of the motor.

Operation:
Weigh the clinker, gypsum or other materials to be ground.
Before entering the mill, the material should be crushed to ensure that the particle size of the material is less than 7mm.
★ Clean up the remaining materials inside the grinding body, and then pour in the crushed materials.
Cover the grinding door tightly, tighten the compression nut, be careful not to make the grinding door deviate and leak, and then cover the cover door.
Adjust the grinding time according to the grinding needs and do not adjust it during operation.
★ Start up grinding.
If it is required to sample and inspect the fineness or specific surface area of the material during the grinding process, it is necessary to stop the machine for 2-3 minutes and wait for the powder to settle before opening the grinding door for sampling. If the grinding door is not aligned with the cover door, it can be adjusted with a jog switch.
When the grinding reaches the specified time, the mill should automatically stop. After stopping, replace the grid orifice plate and start the mill to dump the material until it is completely emptied.
Wait for about 5 minutes to extract the hopper and take out the ground material.
If there are special requirements for grinding materials, dry slag or sand should be placed in the grinding cylinder and ground for 5 minutes before grinding to clean the materials stuck to the steel balls.

matters needing attention:
Regularly clean the residual dust on the outer surface of the grinder and the inner surface of the casing.
★ Check all fasteners at any time, and tighten them promptly if they are loose.
★ Regularly check the lubrication system, change the gearbox lubricating oil (No. 40 engine oil) every three months, and change the bearing lubricating grease (calcium based or calcium sodium based grease) every six months.
During operation, regular attention should be paid to whether there are any abnormal noises, impact sounds, high temperature rise of gear reduction motors and bearings, smoking, odors, etc. If there are any, the power should be immediately cut off, the cause should be investigated, and the fault should be eliminated before resuming operation.
Regularly check the sealing gaskets and sealing rings on the grinding door cover 4, and replace them in a timely manner if they are damaged.
The control box should be kept dry, the power contact should be checked regularly, and the grounding should be reliable.

Installation and debugging methods:
After disassembling the test grinding box, the exterior of the entire machine should be wiped clean, and the gear reduction motor, grinding machine, housing, bearing seat, and other parts should be carefully inspected for any damage during transportation. Fasteners should be tightened for looseness. Then for hoisting, the ropes should be tied to the seat and not to the casing, shaft, or motor to avoid damaging the parts.
When installing, the oil and dirt on the support base plate should be cleaned first. The surface of the cement foundation should be flat, and after the support is placed steadily, it should be fastened with anchor bolts (steel pads are allowed to be used for leveling).
Before testing, the grinder and casing should be checked. If there is any collision, it should be adjusted to avoid collision; Check if the grinding door cover is tightly closed and not loose; Check the lubrication condition of the bearing seat and the reduction motor. If there is no lubricating oil, it should be filled to the indicator line in the oil window.
Rotate the grinder by hand for more than one cycle and check for any abnormal conditions such as collision or inflexibility.
★ Power on the test machine, the grinder should run clockwise (standing in front of the test mill and looking from left to right). After starting, if it is found that the running direction does not meet the requirements, the power supply can be disconnected. After the motor stops rotating, swap the positions of any two power wires and restart. The test mill should be in good no-load condition before gradually adding the load.

Parameters:
★ Machine speed: 48r/min.
★ Grinding body loading capacity: 100kg.
★ One time material input (loading): 5kg (cement clinker).
★ Grinding material particle size: ＜ 7mm.
★ Grinding time:~30 minutes.
Voltage and frequency: 380V 50Hz.
★ Structural form: horizontal.
★ Ball loading capacity: 0.06 (t).
★ Ball mill length: short mill.
★ Application field: Laboratory ball mill.
★ Applicable materials: cement clinker.
★ Mining method: Surrounding material discharge.
★ Grinding method: Dry.
★ Model: SM500 * 500.
★ Motor power: 1.5 (KW).