Disclosed is a nano-sand mill with static discharge at the tail end of a turbine, including a main body and a screen box. The screen box is fixedly installed at a bottom of the main body, a top surface of the screen box is provided with a through hole, the screen box is communicated with a discharge chamber of the main body through the through hole, an annular mounting plate is fixedly installed on an inner side surface of the screen box, a screen is fixedly installed between inner side surfaces of the annular mounting plate, and a dredging mechanism is provided inside the annular mounting plate. Through the dredging mechanism, a plurality of dredging marbles can continuously strike the screen to quickly dredge the screen, shaking out materials blocked on the screen, and the surfaces of the dredging marbles grind materials blocked on the lower surface of the screen.

The present invention provides a method and system for manufacturing cement wherein ground particles of cement and calcium sulfate are subjected to infrared sensors, laser sensors, or both, so that emanated, irradiated, transmitted, and/or absorbed energy having wavelengths principally within the range of 700 nanometers to 1 millimeter can be monitored and compared to stored data previously obtained from ground cement and sulfate particles and preferably correlated with stored strength, calorimetric, or other data values, such that adjustments can be made to the mill processing conditions, such as the form or amounts of calcium sulfate (e.g., gypsum, plaster, anhydride), or cement additive levels. The strength and other properties of cement can be thus adjusted, and its quality can be more uniform.

A vertical ball mill includes: a rotor, which is axially and radially supported at an upper end; a stator, which radially extends around the rotor, stands in a self-supporting manner and has a lateral surface that is oriented tangentially to the rotor; and a base plate supporting the weight of the stator. The stator includes least two stator segments, which may be separated from one another, stand unsupported in the separated state and may be moved relative to one another; wherein each of the stator segments has, on at least one side edge of a wall which forms the lateral surface, a sealing surface for sealing to the other stator segment, and has, on the bottom edge, a standing surface for sealing to the base plate; wherein the stator segment standing surface weighs on a load-bearing surface of the base plate.

Method and system for generating information relating to an internal state of a tumbling mill (10) for grinding a charge of material (30) by tumbling the material in a rotating shell (20). The method comprising generating a position signal (E, P, P(i), P(j), P(q)) indicative of a rotational position of said rotating shell (20), said position signal including a time sequence of position signal sample values (P(i), P(j), P(q)); detecting a first occurrence of a first reference position signal value (1; 1C, 0%) in said time sequence of position signal sample values (P(i), P(j), P(q)); detecting a second occurrence of a second reference position signal value (1; 1C; 100%) in said time sequence of position signal sample values (P(i), PG), P(q)); generating a vibration signal (Sea, Se(i), SG), S(q)) dependent on mechanical vibrations (Vimp) emanating from rotation of said shell, said vibration signal (Sea, Se(i), SG), S(q)) including a time sequence of vibration sample values (Se(i), SG), S(q)); detecting a third occurrence of an event signature (Sp(r); Sp) in said time sequence of vibration sample values (Se(i), SG), S(q)); generating data indicative of a first temporal relation (Ki(r); Td; FI(r)) between said third occurrence i.e. said event signature occurrence, and said first and second occurences.

A thermal process for carbonizing hemp and reducing particle size, mechanically, by grinding or milling said carbonized hemp materials to generate a precise particle size hemp char and combining the hemp char particles with a polymer into a master batch.

A tumble trimmer system having a tumbler barrel with a perforated axle adapted for introducing a freezing agent such as liquid carbon dioxide or other liquefied gas adapted to flash freeze the plant material when infused into the mesh tumbler barrel, the mesh tumbler barrel adapted with mesh netting or screening for trimming and/or separating plant material enclosed therein, and with an open funnel or chute positioned below the tumbler barrel adapted to catch and direct trimmed and/or separated plant material exiting the tumbler barrel into a bin or container positioned under the funnel or chute, wherein the perforated axle comprises a plurality of perforations positioned around a circumference of and along an entire length of the axle.

A method can include milling a powder with a test grinding media, and determining an amount of abraded grinding media that abrades from the test grinding media into the powder due to the milling of the powder. The method can include creating a compensated powder to account for the amount of the abraded grinding media such that the powder milling process results in a desired powder composition.

Existing methods of extrusion and other techniques to compound host and additives material uniformly disperse the additive in the host. This innovation uses ball milling to a coat a host particle with an additive dramatically reducing the additive required to achieve a percolative network in the host.

The present invention provides a system and method for more efficient utilization of comminution mills. Sensors are provided in the liners placed within the mill shell. The sensors may include RFID tags, liner wear profile sensors (e.g., such as an ultrasonic sensor), an inertial sensor (preferably included both an inclinometer and an accelerometer, and an acoustic sensor, among others. When the liners are installed in the shell, the RFID tag is used to register the location of the liner within the shell. In operation, the information provided by the sensors is collected by a data transmission unit and sent by transmitter over the air to a computer having an antenna and receiver for such data. The data is correlated and the data is reviewable in real time while the mill is in running.

A drum assembly for a ball mill system may comprise: a drum having a first flange extending axially forward from a first radial wall, a second flange extending axially aft from a second radial wall, and a cylinder shell extending axially from a first radially outer end of the first radial wall to a second radially outer end of the second radial wall; a frame coupled to the first flange; and an inlet liner coupled to the frame, the inlet liner comprising a plurality of inlet segments disposed circumferentially adjacent to each other, the inlet liner defining an inlet radius for the drum assembly.