4results about How to "Stable dust removal" patented technology

The utility model discloses a dust removal device under a mine, and relates to the technical field of dust removal equipment in the mine. The device comprises a dry-type dust collector which is arranged in a mine, an air outlet of the dry-type dust collector is located at an air outlet of the mine, an air inlet of the dry-type dust collector is connected with an air pipe, a hanging bracket is installed at the free end of the air pipe, the two ends of the hanging bracket are respectively provided with a back shore supporting foot, the hanging bracket is provided with two sections, and the two sections of the hanging bracket are connected through a telescopic assembly. And one end of the supporting arm assembly is rotationally connected with the hanging bracket, the other end of the supporting arm assembly is rotationally connected with a positive pressure fan, and an air outlet of the positive pressure fan corresponds to an air inlet of the air pipe. According to the utility model, the two telescopically connected hanging brackets are connected through the telescopic assembly, so that the length can be adjusted according to the caliber change of different areas of a mine; the supporting arm assembly moves to the side far away from the air pipe, dust is blown to the air pipe, the dust removal rate is increased, and the air quality in a mine and the operation safety of miners are guaranteed.

The invention discloses a ladle refining furnace movable dust hood and a method thereof, and belongs to the technical field of dust hoods. The device comprises a supporting frame, a first guide rail and a second guide rail are installed on the front side and the rear side of the bottom of the supporting frame respectively, the height difference exists between the second guide rail and the first guide rail, the horizontal height of the second guide rail is lower than that of the first guide rail, and a supporting column is installed at the bottom of the first guide rail; a cover plate is welded and installed on the supporting frame, an air outlet is formed in the cover plate, and an exhaust pipe is arranged at an end opening of the air outlet. The motor is used for driving the supporting frame to slide along the first guide rail and the second guide rail, and the supporting frame moves along with the ladle refining furnace, so that the supporting frame is located above the furnace mouth all the time, the dust collection effect is ensured, and then stable dust removal is ensured; the second guide rail and the first guide rail have a height difference, through the arrangement of the high rail and the low rail, related equipment of the ladle refining furnace can be normally installed at the positions of the rails, and structural layout and use of existing equipment are not affected.

The invention discloses a stone static crushing device and a construction method, and relates to the technical field of static crushing construction. The device comprises a splitting gun, a plurality of hydraulic rods are uniformly mounted on the splitting gun, two connecting pipes are fixedly connected to the splitting gun, two fixing plates are symmetrically and fixedly connected to one end of the splitting gun, and a dust cover is fixedly connected to the ends, away from the splitting gun, of the two fixing plates. The device is provided with a negative pressure fan, an activated carbon filter plate and a shaking assembly, the negative pressure fan operates to generate negative pressure suction force to collect drifting dust, the activated carbon filter plate intercepts and filters the dust at the moment, and in the filtering process, the shaking assembly operates to keep the activity of the activated carbon filter plate, so that the dust is effectively filtered. The dust collection device can filter dust continuously, so that dust drifting to the outside is reduced, the air quality of a construction site and nearby areas is improved, meanwhile, the influence of dust on the respiratory system of an operator is reduced, and the occupational disease risk is reduced.

This utility model relates to the field of dust collector bag technology, specifically a dust collector bag that is easy to connect and fix. It includes a bag body fitted onto a bag frame. The bag body is characterized by a steel wire ring at its top, and multiple sets of rubber strips fixed to the inner wall of the bag body, with grooves on the surface of the rubber strips. The beneficial effect is that by integrally forming a cloth cover around the top of the bag body, and setting steel wire rings on the top and bottom surfaces of the inner wall of the cloth cover, during installation, after fitting the bag body onto the bag frame, pulling downwards causes the cloth cover to fit over the top of the frame. Using pliers, the steel wire rings are twisted through the cloth cover, tightly securing them to the top ring of the bag frame. Simultaneously, the rubber sleeve on the inner ring of the cloth cover increases the friction between it and the top ring of the frame, further strengthening the connection and effectively preventing the bag body from falling off during use, ensuring stable dust collection.