5results about How to "Reduce grinding efficiency" patented technology

This invention discloses a silicon nitride grinding device, relating to the technical field of silicon nitride grinding devices. The device includes a support frame and a collection box. A conical cylinder is fixedly mounted on the upper surface of the support frame, and the collection box is disposed on the lower surface of the support frame. A feed trough is fixedly mounted on the upper surface of the conical cylinder, and a water storage tank is fixedly mounted on the circumferential surface of the conical cylinder. A water spray head is provided on the inner wall of the conical cylinder. A rotating shaft is rotatably mounted on the upper surface of the inner wall of the conical cylinder, and a grinding head is fixedly mounted on the lower surface of the rotating shaft. A grinding disc is fixedly mounted on the inner wall of the conical cylinder. A material unblocking device is also provided inside the conical cylinder. When the feed trough is blocked, it affects the grinding efficiency, potentially causing a decrease in output or production stoppage. Blockage causes material to accumulate in the feed trough, increasing the pressure and stress on the material. If this blockage persists for a long time, it may damage the feed trough.

This application provides a method for finely grinding self-produced coke fines, comprising the following steps: Step S1, coke produced from the coking process is screened at least twice to obtain coke fines; Step S2, the coke fines are finely ground using a ball mill to obtain coke fines slurry; Step S3, the coke fines slurry is fed into a hydrocyclone for classification, and the overflow of the hydrocyclone is a fine-grained slurry; Step S4, the fine-grained slurry is concentrated and filtered to produce fine coke fines. This method can develop a high-quality pulverized coal resource for blast furnace injection systems and can be applied to industrial production, solving the problem of imbalance between the production and consumption of self-produced coke fines in steel companies.

The invention relates to the related technical field of carbon production powder grinding, in particular to a convenient-to-clean vertical powder grinding machine which comprises a box body, a driving box fixed to the box body, a powder grinding box arranged on the driving box, a cover body rotating on the powder grinding box and a discharging pipe fixed to the bottom of the powder grinding box. A first liquid inlet and a first liquid outlet are fixed to the box body, a second liquid inlet and a second liquid outlet are fixed to the grinding box, one end of the first liquid inlet is connected with external liquid, and an annular pipe body is arranged in an inner container of the grinding box; a cold source (water) is connected into the annular pipe body, the cold source absorbs heat in the powder grinding box, the absorbed cold source is guided out to the water tank, the cold source is guided into the annular pipe body again through the pump body in the water tank, it is guaranteed that the temperature in the powder grinding box is lowered, and therefore the situation that due to the high temperature, pulverized coal is softened and caked, electrostatic adsorption is increased, and the powder grinding efficiency is improved is reduced. The grinding efficiency is reduced; and the load of equipment is increased.

The application belongs to the technical field of medicinal plants and traditional Chinese medicine identification, and discloses a device for identifying firecracker flower roots and their adulterants, which comprises a liquid nitrogen ball mill, a DNA extraction kit and a PCR amplifier connected in sequence, the liquid nitrogen ball mill is connected with a variable speed motor, and further comprises a sealing assembly, the sealing assembly comprises a first permanent magnet and a sealing ball, the first permanent magnet and the sealing ball repel each other, the first permanent magnet is slidingly arranged in a first through groove, the sealing ball is slidingly arranged in a wedge-shaped through groove, and is connected with a tension spring, the free end of the tension spring is fixedly connected with the wedge-shaped through groove; the first through groove and the wedge-shaped through groove are both provided with a sliding groove, and the first permanent magnet and the sealing ball are slidingly connected with the sliding grooves respectively; the diameter of the sealing ball is not less than the diameter of the opening of the wedge-shaped through groove; the scheme can adjust the supplement amount of liquid nitrogen according to the change of the rotating speed of the ball mill. The application solves the problem that the existing liquid nitrogen ball mill cannot adjust the supplement amount of liquid nitrogen according to the rotating speed of the ball mill.

The present application relates to the technical field of tobacco processing, and particularly relates to a tobacco flavor substance extraction device and method. The device comprises an extraction barrel, a grinding assembly, a scraping assembly and a stirring assembly arranged in the extraction barrel. The grinding assembly comprises a grinding disc, a crushing wheel and a driving unit. The grinding disc is fixed in the extraction barrel. The driving unit comprises a motor, a driving gear, a driven gear and a rotating shaft. The motor is installed on the top of the extraction barrel. The scraping assembly comprises a scraper and an elastic force applying structure. The scraper is connected with the rotating shaft through the elastic force applying structure, and the scraper is in contact with the surface of the grinding disc. The stirring assembly comprises a support frame and a stirring member. The support frame is fixed on the lower part of the rotating shaft, and the stirring member is installed on the support frame. The present application solves the problem of low extraction efficiency caused by insufficient crushing and grinding in the prior art, and shortens the extraction time and improves the extraction efficiency per unit time.