5results about How to "Realize dust collection" patented technology

The utility model discloses a mineral substance grinding and sampling device, and relates to the technical field of mineral substance grinding. According to the mineral substance grinding and sampling device, by arranging a first gear, a second gear, a rotating shaft, a first belt wheel, a transmission belt, a second belt wheel, a connecting plate, a reciprocating lead screw, a connecting frame, a sleeve rod, a connecting rod, a grinding disc, a hollow rod, a grinding groove and a rotating cylinder, the function of grinding mineral substances is achieved, and the grinding disc continuously moves up and down while rotating; and large-particle mineral substances are crushed, the mineral substances possibly move to the top of the grinding disc in the crushing process, when the grinding disc ascends, the mineral substances return to the grinding groove along the inclined face of the top of the grinding disc, and when the grinding disc descends, the mineral substances continue to be crushed and ground.

The utility model discloses a novel electric telescopic protective cover of a ladle cleaning machine, which comprises a base and an inner protective cover, the base is arranged at the bottom of the inner protective cover, a track is arranged on the outer side of the base, an outer protective cover is arranged outside the inner protective cover, the bottom of the outer protective cover is connected with the track in a sliding mode, and motors are respectively arranged on two sides of the upper portion of the inner protective cover. The output end of the motor is connected with a lead screw, the lead screw is connected with a nut in a matched mode, and the nut is fixedly connected with the outer wall of the outer protective cover. By adopting the design of the telescopic double-layer protective cover, the telescopic length of the outer protective cover can be freely adjusted according to the height of the molten aluminum two-man ladle, so that dust collection can be effectively carried out on the molten aluminum two-man ladles with different heights, dust leakage is prevented, on-site dust pollution is reduced, the cleanliness of a working environment is improved, and the telescopic protective cover is convenient to use and simple to operate.

The invention discloses a dust fall device for solid wood board cutting, and relates to the technical field of atomization dust fall, the dust fall device comprises a processing table, a cutting base plate is fixedly mounted at the top of the processing table, a rectangular saw groove is formed in the top of the cutting base plate, and table saw cutting equipment is arranged on the surface of the processing table; the bench saw cutting equipment comprises a bench saw cutting equipment body, the bench saw cutting equipment body is fixedly installed at the bottom of the machining table, the saw blade cutting end of the bench saw cutting equipment protrudes out of the top of a cutting base plate through a rectangular saw groove, the dust falling box fixedly penetrates through the top of the machining table, and a dust suction opening is formed in the side, close to the cutting base plate, of the dust falling box; and by arranging a drainage plate, the problem that after water mist enters the telescopic cover, wood dust generated by cutting adheres to the inner wall of the telescopic cover, and the negative pressure suction effect is reduced can be effectively solved.

The present application relates to a kind of sintered quicklime digestion control device, the control device includes digester system, sealing structure and dust removal system, the digester system includes three levels structure, from top to bottom in turn first-stage digester, second-stage digester and third-stage digester, sealing structure is set to the outside of digestion system, dust removal system is set to the top of entire device;The scheme realizes the digestion of quicklime, realizes the water intake of hydrated lime in whole process control, after passing through third-stage digester device, make quicklime fully digestion, and in quicklime digestion process, can be qualitatively judged quicklime quality by the reaction temperature after quantitative water supply, adjust the water supply in digester, and carry out sealing treatment to feed inlet and discharge port, utilize integrated dust removal system, respectively handle and return digester to dust and water vapor in digestion process, ensure 100% recovery.

The invention discloses a dust prevention and control system and method for drilling of a coal mine vertical shaft umbrella drill. The dust prevention and control system comprises ground high-negative-pressure dust removal equipment, a dynamic variable-diameter balance pipeline and a dust suction hood. The ground high-negative-pressure dust removal equipment is used for conveying dust-containing airflow subjected to negative-pressure extraction underground to the ground and carrying out dust removal treatment; the dynamic reducing balance pipeline is an annular pipeline composed of a plurality of pipeline sections, a starting end is set, the pipe diameters of the pipeline sections are sequentially decreased from near to far according to the distance between the pipeline sections and the starting end, each pipeline section is provided with a dust suction opening, and on-way resistance and dynamic pressure distribution of airflow in the pipeline are adjusted through reducing, so that the dust suction efficiency is improved. Static pressure balance in the dynamic reducing balance pipeline is realized; and the dust hood covers a drilling hole of the umbrella drill and is used for sucking dust at the drilling hole. According to the system, on the premise that working area water is not generated, efficient source trapping of dust during drilling of the umbrella drill can be achieved, suction force of all drilling holes to the dust is basically balanced, and the dust removal effect of all the drilling holes is guaranteed.