6results about How to "Achieve clean emissions" patented technology

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The utility model relates to the technical field of glue drying, in particular to a waste gas treatment device for glue drying. A waste gas treatment device for glue drying comprises a rack; the conveying device is arranged on the rack and is used for conveying paper; the furnace body shell is positioned above the conveying device and is arranged on the rack; the heating assembly comprises a first heating pipe and a second heating pipe, and the first heating pipe and the second heating pipe are parallel to each other up and down and are arranged in the furnace body shell; and the feeding hole is formed in one side of the furnace body shell. The waste gas treatment device has the beneficial effects that through the reasonable layout of the filtering assembly and the adsorption assembly, the high efficiency of waste gas treatment is ensured, the waste gas is prevented from being gathered in the furnace body, and when the filtering assembly needs to be replaced or cleaned, the maintenance can be completed only by pulling out the furnace cover without disassembling the whole device, so that the downtime is greatly reduced, and the production efficiency is improved. And the production continuity is improved.

This invention relates to the field of wastewater treatment technology, and more particularly to a treatment process and system for stainless steel wastewater containing transition metal ions and acids. The treatment process includes the following steps: adding sodium hydroxide to the wastewater to convert the contained transition metal ions into various hydroxide precipitates under different pH conditions, achieving separation; adding alkaline earth metal oxides or hydroxides and coagulants to the wastewater to convert the contained fluoride ions into fluoridated alkaline earth precipitates, achieving separation; first, thoroughly removing the transition metal ions from the wastewater using a cation exchange resin, then using a reduction technology to reduce sodium nitrate in the wastewater to nitrogen gas and sodium hydroxide; finally, using an evaporation technology to obtain a concentrated sodium hydroxide solution from the wastewater. The above process can not only completely remove transition metal ions, fluoride ions, and nitrate ions from the wastewater, but also recover and reuse the sodium hydroxide consumed in the acid neutralization reaction and the excess sodium hydroxide added due to the precipitation of transition metal ions.

This invention discloses a car hood sheet metal repair device, belonging to the field of sheet metal repair technology. Key technical features include: a worktable for fixing car sheet metal parts; a scanner for scanning the car sheet metal parts and determining the repair area; a robotic arm mounted on one side of the worktable for generating a grinding path based on the scanner data; a grinding device mounted at the working end of the robotic arm, including a grinding motor and a grinding head, the grinding motor driving the grinding head; a negative pressure suction device for generating a constant negative pressure airflow; and a dust suction device sleeved on the outside of the grinding head for negative pressure dust suction. The dust suction device includes a first constraint sleeve and a second constraint sleeve, with a gap between the two. This invention significantly improves repair accuracy and efficiency, reduces manual maintenance costs, and meets environmental protection requirements.

The utility model relates to a spraying device for part machining, which comprises a spraying box, a partition plate is fixed on the spraying box, a spraying cavity is arranged on the partition plate, a liquid storage cavity is arranged below the partition plate, a through groove is formed in the partition plate, a metal grid is arranged in the through groove, the spraying box is provided with a spraying assembly, the spraying box is provided with a drying oven, and the drying oven and the spraying cavity are communicated through a gas conveying pipe. A heat dissipation groove is formed in the spraying box, a mounting groove is formed in the spraying box, a mounting plate is slidably sealed in the mounting groove, a groove is formed in the mounting plate, an activated carbon plate is hermetically placed in the groove, a ventilation groove is formed in the mounting plate, a handle is arranged on the mounting plate, and a locking assembly is arranged at the front end of the spraying box; by starting the drying oven, the drying oven absorbs outside air and heats the outside air, the heated hot air is conveyed to the spraying cavity through the air conveying pipe to dry the parts, and meanwhile the air in the spraying cavity is driven to be discharged from the heat dissipation groove; when air passes through the interior of the heat dissipation groove, harmful gas in the air can be filtered through the activated carbon plate, clean emission is achieved, and environmental pollution and harm to workers are avoided.

The utility model relates to the field of plastic processing discloses a polyformaldehyde granule dryer with drainage device, including by flange connection in proper order feed section, drying section, cooling section and discharge section constitute drying cooling main part, drying cooling main part outside is provided with tail gas treatment subassembly and vibration subassembly, the inside of feed section is provided with cloth structure and lower feed port, and high low material level switch is installed on its side wall, the inside fixed connection of drying section has the heating plate group of heating source inlet and outlet subassembly, the inside fixed connection of cooling section has the cooling plate group of cold -source inlet and outlet subassembly, the even wind subassembly is provided between cooling section and discharge section. In the utility model, integrate drying and cooling procedure in vertical equipment, realize continuous production, reduce equipment space and investment, adopt plate indirect heat exchange, avoid material pollution, ensure purity, and accurate control temperature, prevent product degradation or yellowing, guarantee high quality.