US 12,275,118 B2
High-pressure water jet sheet strip sand-blasting descaling cleaning device, cleaning line and system
Guiting Mao, Changsha (CN); Dengpei Ouyang, Changsha (CN); Yi Ke, Changsha (CN); Zhimou Liu, Changsha (CN); Dekul Han, Changsha (CN); and Yafei Ding, Changsha (CN)
Assigned to CHANGSHA RESEARCH INSTITUTE OF MINING AND METALLURGY CO., LTD., Hunan (CN)
Appl. No. 17/059,292
Filed by CHANGSHA RESEARCH INSTITUTE OF MINING AND METALLURGY CO., LTD., Hunan (CN)
PCT Filed May 31, 2019, PCT No. PCT/CN2019/089559
§ 371(c)(1), (2) Date Nov. 27, 2020,
PCT Pub. No. WO2019/228507, PCT Pub. Date Dec. 5, 2019.
Claims priority of application No. 201810553257.8 (CN), filed on May 31, 2018; application No. 201811434614.5 (CN), filed on Nov. 28, 2018; and application No. 201811435735.1 (CN), filed on Nov. 28, 2018.
Prior Publication US 2021/0138607 A1, May 13, 2021
Int. Cl. B24C 1/08 (2006.01); B24B 9/10 (2006.01); B24B 27/00 (2006.01); B24C 3/12 (2006.01); B24C 3/14 (2006.01); B24C 9/00 (2006.01)
CPC B24C 1/086 (2013.01) [B24C 3/12 (2013.01); B24C 3/14 (2013.01); B24C 9/00 (2013.01); B24B 9/102 (2013.01); B24B 27/0069 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A high-pressure water jet sheet strip sand-blasting descaling cleaning system, comprising:
at least one high-pressure water jet sheet strip sand-blasting descaling cleaning device, wherein the at least one high-pressure water jet sheet strip sand-blasting descaling cleaning device comprises a cleaning box, a washing box and descaling nozzles for jetting and cleaning a sheet strip, the washing box is arranged at an output end of the cleaning box, the descaling nozzles face to a same width direction of the sheet strip and are arranged in a gradient along a conveying direction of the cleaning box to jet the sheet strip in a covering manner, each of the descaling nozzles jets and diffuses on the sheet strip to form jet influence areas, each of the jet influence areas comprises a jet cleaning area which has a direct jet cleaning effect on the sheet strip, and one of the jet influence areas formed by a first descaling nozzle of the descaling nozzles earlier entering above the sheet strip is partially overlapped with the jet cleaning area formed by a second descaling nozzle of the descaling nozzles later entering above the sheet strip, and
an abrasive collecting box, a high-pressure water supply system, an abrasive supply-recovery-separation system and a sewage recycling treatment system;
wherein the high-pressure water supply system comprises a water purifying box and a high-pressure pump, one end of the high-pressure pump is connected with the water purifying box, and a second end of the high-pressure pump is connected with the descaling nozzles;
the abrasive supply-recovery-separation system comprises an abrasive tank, an abrasive screening device, a hydraulic conveyer, an overflow collecting box and a hydrocyclone;
the abrasive tank is positioned below the abrasive screening device, one end of the abrasive tank is connected with the abrasive screening device, and a second end of the abrasive tank is connected with the descaling nozzles;
the cleaning box is positioned below the abrasive tank, and the abrasive collecting box is positioned below the sheet strip;
the hydraulic conveyer is positioned below the abrasive collecting box, one end of the hydraulic conveyer is connected with the abrasive collecting box, and a second end of the hydraulic conveyer is connected with the abrasive screening device for sending collected abrasive back to the abrasive tank;
the overflow collecting box is positioned at an output end of an overflow port of the cleaning box, a water inlet of the hydrocyclone is connected with the overflow collecting box through a slurry pump, an outlet at a lower part of the overflow collecting box is connected with the cleaning box to recover the abrasive, and a water outlet at an upper part of the overflow collecting box is connected with a sedimentation tank for discharging sewage;
the sewage recycling treatment system comprises a sewage filter and the sedimentation tank, one end of the sewage filter is connected with the water purifying box, and a second end of the sewage filter is connected with the sedimentation tank.