5results about How to "Avoid over-crushing" patented technology

The utility model relates to calcium carbonate grinding technical field, concretely is vertical mill grinder grinding device of two -stage grinding, grinding assembly includes grinding bucket, the fixed screw is annular array distribution at the outer wall of grinding bucket. The vertical mill grinder grinding device of two -stage grinding, the calcium carbonate that needs to polish is placed in the grinding bucket through the feed inlet, and the rotation of the rotating disc is driven through the external motor simultaneously, makes the calcium carbonate in the grinding bucket constantly through the polishing piece and the polishing roller and rotates, in the process of rotating, the calcium carbonate is constantly polished and makes it gradually moves back, and the polishing roller is circular truncated cone, the calcium carbonate is smaller and smaller in the process of constantly moving back, the polished calcium carbonate powder is accumulated at fixed disc no.

This invention discloses an automated equipment for low-temperature pulverization of Panax notoginseng powder, relating to the field of pulverization processing technology. The automated equipment includes a front-end component for crushing Panax notoginseng powder and a rear-end component for screening the finished product. The front-end component includes a coarse crusher for coarse crushing of the Panax notoginseng powder and a pulverizing host for pulverizing the Panax notoginseng powder. The pulverizing host includes a base, and an air inlet assembly is mounted above the base. The air inlet assembly includes a first chamber fixedly connected to the base, with a first chamber pipe fixedly connected to one side of the first chamber. A pulverizing chamber assembly is mounted above the air inlet assembly, including a second chamber fixedly connected to the first chamber, with a second chamber pipe fixedly connected to one side of the second chamber. A pulverizing component is located in the lower part of the pulverizing chamber assembly. This automated equipment for low-temperature pulverization of Panax notoginseng powder has high grading efficiency, effectively avoids over-pulverization of materials, and saves energy.

The application relates to a mill feeding sealing device and a mounting and dismounting method, and belongs to the technical field of mills, which comprises a supporting table, one side of the top of the supporting table is fixedly provided with an output motor, and the other side of the top surface of the supporting table is provided with a crusher, the crusher comprises a discharging chute plate fixedly arranged on one side of the top of the supporting table, opposite sides of the surface of the discharging chute plate are rotatably provided with power shafts through connecting shafts, one side of the top of the discharging chute plate is rotatably provided with a feeding chute plate, and a sealing assembly is arranged between the discharging chute plate and the feeding chute plate, the sealing assembly comprises two sealing rings arranged between the discharging chute plate and the feeding chute plate, the sealing ring structure is filled with substances inside, additional internal supporting force is generated when the sealing ring structure is extruded, the sealing ring and a matching surface can be kept in stable contact, the sealing reliability of a mill feeding position is remarkably improved, and material leakage is effectively prevented.

The invention relates to a reprocessing production method of cubic boron nitride micro powder. The reprocessing production method comprises the following steps: 1) preparing steel balls: weighing a certain amount of steel balls of phi 20mm, phi 18mm, phi 16mm, phi 14mm, phi 12mm, phi 10mm and phi 8mm in proportion, uniformly mixing, and placing in a ball milling tank; 2) setting the rotating speed of the ball milling tank; (3) weighing cubic boron nitride micro-powder with the particle size being less than 10 microns or 60000-80000ct of remaining cubic boron nitride micro-powder with the target particle size being removed, putting the cubic boron nitride micro-powder or the remaining cubic boron nitride micro-powder into a ball-milling tank, and inching the ball-milling tank to uniformly mix the materials with the steel balls; (4) setting the working time to be 8-10 hours, unloading the materials after the working time is finished, cooling for 1-3 hours, then adding the materials into the ball milling tank again for continuous ball milling, and repeating the operation for 6-8 times; 5, after material ball milling is finished, cubic boron nitride micro powder with different particle sizes is obtained through purification, separation and drying, and the mass proportion of the target particle size is calculated.By means of the method, more target particle sizes M1-2 and M2-4 can be obtained, the output rate of the target particle sizes of the cubic boron nitride micro powder is increased, and therefore the production cost of the cubic boron nitride micro powder is saved.

The invention provides wet-type ball-milling separation equipment and method.The wet-type ball-milling separation equipment comprises an outer cylinder, an inner cylinder, a cleaning device and a driving mechanism, a feeding port is formed in one end of the inner cylinder, a grinding body is arranged in the inner cylinder, and the inner cylinder penetrates through the outer cylinder in the axial direction and is coaxially and rotationally connected with the outer cylinder; a containing cavity is formed between the outer side wall of the inner cylinder body and the inner side wall of the outer cylinder body, a plurality of through holes are formed in the outer side wall of the inner cylinder body, and the through holes communicate with the containing cavity; the cleaning device is arranged on the outer side wall of the inner cylinder body in the outer cylinder body, and the cleaning device can be in contact with the inner side wall of the outer cylinder body when the inner cylinder body rotates; the driving mechanism is in transmission connection with the inner barrel and used for driving the inner barrel to rotate around the axis. According to the invention, the grinding effect and quality are improved, and the downtime and maintenance cost caused by material blockage or insufficient cleaning are reduced.