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8results about How to "Avoid polluting the environment" patented technology

Stainless steel strip polishing device for enhancing surface heat dissipation efficiency

The utility model discloses a stainless steel strip polishing device capable of enhancing the surface heat dissipation efficiency, and relates to the technical field of stainless steel strip polishing. The device comprises an outer box, an inner box, a mounting frame, a first motor and a second motor, the inner box is arranged in the outer box, a stainless steel belt is conveyed in the inner box, the mounting frame is arranged in the inner box, and two sets of symmetrically-distributed transmission rollers are rotationally mounted in the mounting frame; the outer wall of the transmission roller is sleeved with a polishing belt attached to the two ends of the stainless steel belt, cooling water higher than the stainless steel belt is arranged in the inner box, stroke openings higher than the upper end of the outer box are formed in the two ends of the inner box, and the stainless steel belt penetrates through the stroke openings in a sliding mode. The outer wall of the linkage chain wheel is sleeved with a chain. The stainless steel strip polishing device is immersed in cooling water to polish a stainless steel strip, so that the problem of low cooling efficiency caused by insufficient heat carrying capacity of air is solved.
Owner:ANHUI JINGKE ELECTROMECHANICAL CO LTD

A device for recovering dust from firecracker igniters

ActiveCN224423722UEasy to collect dustImprove filtering effectFirecrackerDust control
This utility model discloses a firecracker solid ignition dust recovery device, relating to the field of firecracker production technology. The device includes a recovery box with an air inlet on its left side, a support frame installed at the bottom of the outer side of the box, a fan installed at the top of the rear side of the box, and a top cover. A filter assembly is installed inside the upper part of the recovery box; a discharge assembly is installed at the bottom of the box; and a dust collection assembly is installed inside the air inlet, including a diverter pipe installed inside the air inlet. This utility model, through the combined use of the dust collection and dust removal components, facilitates the collection of solid ignition dust scattered during firecracker assembly, avoiding the problem of dust pollution caused by scattered solid ignition. The pleated filter cartridge facilitates the filtration of the solid ignition, improving the recovery efficiency of the device.
Owner:YICHUN KUNYUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

Gravel homogenizing and spreading device

ActiveCN224259159UConvenient spray dust reductionavoid polluting the environmentRoad cleaningRoads maintainenceElectric machineCrushed stone
The gravel homogenizing and spreading device comprises a feeding box, a rotating motor and a collecting frame, a traction rod is fixed to the lower portion of the side face of the feeding box, a feeding port is formed in one side of the upper portion of the feeding box, and a first through hole is formed in one side of the lower portion of the feeding box; a first through hole is formed in the upper portion of the feeding box, a discharging opening is fixed to the position, corresponding to the first through hole, of the lower portion of the feeding box, a connecting shaft is rotationally connected to the position, located on one side of the feeding opening, of the upper portion of the feeding box, a rotating motor fixed to the surface of the feeding box is fixed to the end of the connecting shaft, a fixing cylinder is fixed to the surface of the connecting shaft, and smashing teeth are evenly fixed to the surface of the fixing cylinder. Fixing teeth are fixed to the positions, staggered with the smashing teeth, of the inner wall of the feeding box. According to the broken stone homogenizing and spreading device, through the use of the dust falling assembly, spraying dust falling can be conveniently conducted on the feeding port and the two ends of the discharging port, and the problem that dust generated after broken stone smashing and dust generated after discharging are splashed into the air, and the environment is polluted is solved.
Owner:FUZHOU HENGTONG ROAD & BRIDGE ENG CO LTD

Attached support type overwater operation platform for construction of bridge widening pile foundation in river channel and construction method of bridge widening pile foundation in river channel

PendingCN121952075AAvoid the problem of occupying a large arealow costArtificial islandsBridge erection/assemblyRiver routingArchitectural engineering
The invention discloses an attached supporting type water operation platform for construction of a bridge widening pile foundation in a river channel and a construction method of the bridge widening pile foundation in the river channel. Vertically driving four steel pipe piles which are distributed in a rectangle and constructed in a stable soil layer at the bottom of the river channel into a planned bridge widening pile foundation area covering the river channel; the platform frame comprises longitudinal beams and two cross beams, the longitudinal beams are installed on two steel pipe piles parallel to the bridge direction in the same straight line direction in a hoisting mode, the two cross beams are installed on the longitudinal beams in a hoisting mode in the transverse bridge direction, one end of each cross beam is anchored to a bridge floor steel bar of an original bridge, and the other end of each cross beam is overhung to the position outside a bridge splicing widening pile foundation area; the platform plate is laid on the platform frame; and the guardrail is vertically constructed on the periphery of the platform frame. The method has the advantages of being low in cost, short in construction period, energy-saving and environment-friendly.
Owner:SHANGHAI CONSTRUCTION FIRST CONSTRUCTION (GROUP) CO LTD

An upright plant growing facility

The application relates to the technical field of seedling raising equipment, and discloses a vertical seedling raising facility, which comprises a seedling raising frame, the front end bottom of the seedling raising frame is provided with a plug tray feeding and discharging frame, a bottom arc-shaped groove seat is fixed in the plug tray feeding and discharging frame, a top arc-shaped groove seat is rotationally connected to the middle part of the front end of the bottom arc-shaped groove seat through a driving assembly, and the driving assembly is connected with a scraping assembly on the bottom arc-shaped groove seat through a clutch assembly; when the plug tray placing frame moves into the bottom arc-shaped groove seat, the driving assembly drives the top arc-shaped groove seat to rotate and close above the bottom arc-shaped groove seat, the spraying assembly on the top arc-shaped groove seat sprays the seedlings on the plug tray placing frame, then the driving assembly drives the top arc-shaped groove seat to rotate in the reverse direction and open, at this time, the clutch assembly drives the scraping assembly to rotate and scrape the impurities falling into the bottom arc-shaped groove seat. The application blocks the pollution source from the whole process of collection and cleaning through the cooperative design of the bottom arc-shaped groove seat, the top arc-shaped groove seat and the scraping assembly.
Owner:AGRI MACHINERY INST CHINESE TROPICAL ACAD OF SCI

A method for treating tin smelting waste acid wastewater and intermediate slag

ActiveCN116143330BImproved arsenic removal effectHigh desulfurization rate
The application discloses a treatment method of tin smelting waste acid sewage and intermediate slag, and comprises the following specific steps: (1) after limestone is added into tin smelting waste acid sewage to adjust the pH value to 10-11, solid-liquid separation is carried out to obtain first arsenic-containing gypsum slag and first filtrate; (2) the first filtrate is subjected to an oxidation reaction, iron salt is added and stirring reaction is carried out, then solid-liquid separation is carried out to obtain second arsenic-containing gypsum slag and second filtrate, and the second filtrate can be discharged or recycled; (3) the first arsenic-containing gypsum slag, the second arsenic-containing gypsum slag and pyrite are uniformly mixed and then sent into a fuming furnace for treatment; the method can realize stable and standard discharge or recycling of the waste acid sewage and harmless utilization of the intermediate slag.
Owner:YUNNAN TIN CO LTD TIN BRANCH