11results about How to "Avoid recontamination" patented technology

The utility model relates to the technical field of electrophoretic coating, in particular to a cleaning and filtering device for electrophoretic coating, which comprises a cleaning box and further comprises a liquid supply assembly, a filtering assembly and a filtering assembly, and the liquid supply assembly comprises a liquid supply box, a liquid supply pump, a connecting pipe, a shunt pipe and an output head; the bearing assembly comprises a motor, a gear ring, a gear, a rotating disc, a rotating shaft and a hanging piece; in the cleaning process, all faces of the materials can make full contact with cleaning liquid, cleaning dead corners are avoided, and the problem that cleaning is not thorough due to the fact that the angles of the materials are inconvenient to adjust through a traditional device is solved. A filter plate in the waste liquid collecting assembly can filter waste liquid after cleaning, impurities in the waste liquid are separated out, and the impurities are prevented from polluting cleaning liquid again or blocking a pipeline. The waste liquid collecting box is located below the filter plate, so that filtered waste liquid can be collected in time, effective collection of the waste liquid is realized, and resource waste is reduced.

The utility model provides an aluminum profile door and window structure capable of automatically cleaning outer layer glass, which relates to the technical field of aluminum profile doors and windows and comprises a frame and a glass layer, an installation cavity is arranged at the center of the inner wall of the frame, the glass layer is embedded in the installation cavity, and a sliding connecting rod and a movable support are respectively arranged at positions close to the front side and the back side of the glass layer. A magnetic attraction vertical rod is fixed to the back face of the sliding connecting rod, a scraper is fixed to one side of the movable support, sliding grooves are formed in the inner wall of the frame and located in the positions close to the front face and the back face of the glass layer, and a mounting frame and a spraying frame are connected to the two faces of the top end of the frame in a bolted mode correspondingly; the magnetic attraction vertical rod on the inner-layer glass linearly moves to drive the scraping plate on the outer-layer glass to move, glass cleaning work can be automatically completed, tedious operation of manual cleaning is avoided, the cleaning efficiency is improved, and the glass cleaning device is suitable for glass cleaning of high-rise buildings.

The road guardrail cleaning machine comprises a main body, two L-shaped blocks are fixedly connected to the lower surface of the main body, and a circulating water mechanism is arranged at the positions of the main body and the L-shaped blocks; the circulating water mechanism comprises a driving shaft, the driving shaft is rotationally connected with the upper surface of the main body, the driving shaft is fixedly connected with a servo motor, the driving shaft is fixedly connected with a first gear, the main body is rotationally connected with two follow-up shafts in a penetrating mode, the two follow-up shafts are both fixedly connected with second gears, and the second gears are fixedly connected with the servo motor. The second gear is meshed with the first gear, the main body is provided with a circulation cavity, the L-shaped block is provided with a receiving groove, and two pumping pistons are connected into the main body in a sealed and sliding mode. The cleaning machine has the advantages that circulation of cleaning water can be achieved, waste of water resources is avoided, meanwhile, the situation that sewage pollutes a road surface can be avoided, clear water can be automatically supplemented when circulating water is insufficient, the automation degree is higher, and the cleaning effect is better.

The utility model discloses a water cooler based on a metal purification lining. The water cooler comprises a water supply heat dissipation unit and a metal purification lining unit. The water supply heat dissipation unit comprises a water supply end, a new water ring pipe, a water cooler connected with the new water ring pipe, a water return ring pipe and a water drainage end; water enters the new water ring pipe through the water supply end, is subjected to heat exchange through the water cooler and is finally discharged through the water return ring pipe and the water discharge pipe. A snakelike water cooling pipe is laid in the water cooler and used for increasing the heat conduction amount; the metal purification lining unit comprises a purification container, the water cooler is embedded in the purification container, and the water cooler comprises a water cooler cold surface and a water cooler hot surface. The lining water cooler based on metal purification is provided in a copper and steel combination mode, under the condition that it is ensured that high-purity metal is not polluted in the metal purification process, the input cost of technological equipment is greatly reduced, the structural stability of the water cooler lining is improved, and the stability is improved.

The utility model relates to an automatic cleaning device for a semiconductor chip electrical test board card. The automatic cleaning device comprises a box body, a conveying mechanism for conveying the board card, and a turnover mechanism, a cleaning mechanism and a dust collection mechanism which are arranged in the box body and are sequentially arranged from top to bottom, the turnover mechanism comprises a bracket, a locking assembly arranged on the bracket and used for fixing the board card, and a first driving assembly connected with the bracket and used for driving the bracket to turn over; the high-pressure air knife is horizontally arranged below the bracket and slides in a reciprocating mode in the horizontal direction, the second driving assembly is connected with the high-pressure air knife and used for driving the high-pressure air knife to slide in a reciprocating mode, an air spraying opening of the high-pressure air knife faces the bracket, and the high-pressure air knife is communicated with an external air source. According to the board card cleaning device, the cleaning efficiency is improved, the labor cost is reduced, incomplete cleaning caused by the fact that the hand blocks airflow when the board card is held for purging is avoided, meanwhile, the situation that the hand is dirty and repeatedly pollutes the board card is avoided, and the cleaning effect on the board card is ensured.

This invention relates to a method for preparing potassium fluorotantalate from tantalum solution, comprising the following steps: heating and conversion of the solution, transferring the potassium fluorotantalate crystallization solution, cooling and crystallizing the potassium fluorotantalate, discharging the potassium fluorotantalate crystallization mother liquor, washing the potassium fluorotantalate crystals, discharging the potassium fluorotantalate crystals, and drying the potassium fluorotantalate crystals. The beneficial effects are: the method of this invention is suitable for preparing potassium fluorotantalate from tantalum solution with a tantalum oxide concentration of 50 g / L to 80 g / L; high-concentration tantalum solutions do not require dilution with deionized water, saving conversion reaction materials; before adding the potassium fluorotantalate crystallization solution to the crystallization washing tank, hot water is circulated through the media jacket to preheat the crystallization washing tank, preventing excessively rapid cooling when the potassium fluorotantalate crystallization solution is added to the crystallization washing tank, thus preventing the formation of a large number of crystal nuclei or the generation of fine crystals, while allowing sufficient time for crystal growth.

The utility model discloses a cleaning nozzle and cleaning device, the cleaning nozzle includes: the main body structure is equipped with the air blowing channel and the air suction channel in it, and the main body structure is equipped with the cleaning face to the product to be cleaned, a plurality of air blowing holes are all arranged in the middle part of the cleaning face, and the air blowing hole is connected with the air blowing channel, and a plurality of air blowing holes include center air blowing hole and edge air blowing hole, and the through-flow area of center air blowing hole is greater than the through-flow area of edge air blowing hole, a plurality of air suction holes are all arranged on the cleaning face, and the air suction hole is arranged on the periphery of air blowing hole, and the air suction hole is connected with the air suction channel, and the vertical projection of a plurality of air suction holes on the cleaning face and the vertical projection of the product to be cleaned on the cleaning face keep interval arrangement. In the case where the same air blowing height and air blowing flow, increase the through-flow area of center air blowing hole more favorably bring greater cleaning coverage area, and the exhaust gas flow is just located the suction path of air suction hole when flowing out the product to be cleaned, can bring more smooth exhaust path.

The application discloses a mold visual detection device and a detection method thereof, and belongs to the technical field of mold detection. The device comprises a base platform. A mold opening and closing supporting mechanism is installed on the base platform. A mold cavity uniform cleaning mechanism and an omnibearing detection mechanism are also installed on the base platform. The omnibearing detection mechanism comprises a third linear module, a vertical moving assembly and a multi-angle cooperative detection assembly. Through the above mode, the mold cavity uniform cleaning mechanism passes between the fixed mold and the movable mold to clean the two, so that dirt and impurities are prevented from remaining on the mold surface and interfering with the subsequent detection results. The multi-angle cooperative detection assembly moves vertically while detecting defects of the fixed mold and the movable mold. After detecting a part, the third linear module drives the vertical moving assembly to advance by a part until all parts of the fixed mold and the movable mold are detected, so that omnibearing detection of the mold is realized. The whole detection process does not need manual participation and is suitable for continuous detection operation of batch molds.

The utility model provides a rainwater purification and storage device, which relates to the technical field of water resource purification and comprises a support, a purification container, a drainage mechanism, a reservoir, an underground water kiln and an electric power storage controller capable of receiving weather information. The purification container is provided with a water receiving cavity with an upward opening, a plurality of convex lenses for gathering sunlight to the reservoir are distributed in the purification container, the outer surface of the purification container inclines downwards, an orifice communicated with the water receiving cavity is formed in the lowest point of the inclination, and a water inlet of the telescopic or rotary drainage mechanism corresponds to the orifice; the drainage mechanism is connected with the power storage controller, and the power storage controller controls the water outlet of the drainage mechanism to be arranged corresponding to the water inlet of the reservoir or the underground water kiln according to weather information. The water quality problem existing in rainwater storage application is relieved, the occupied area is small, the cost is low, and pollution cannot be caused.

This invention belongs to the field of waste gas treatment technology, specifically disclosing a waste gas filter and its usage method. The filter includes a collection shell and a filter structure. The filter structure includes filter elements that penetrate the collection shell at equal intervals. An exhaust structure is fixed to one side of the collection shell. The exhaust end of the filter elements is connected to the exhaust structure. A transmission structure is connected to the exhaust structure to drive the filter elements to rotate. When waste gas enters the inside of the collection shell, the transmission structure drives the filter elements to rotate inside the collection shell, thereby achieving uniform contact between particulate matter in the waste gas and the filter elements. This allows the waste gas to quickly pass through the filter elements and enter the exhaust structure. A one-way valve is connected to the exhaust structure, and a fan blade is connected to the transmission structure. This invention achieves filtration and dust removal simultaneously through a single transmission structure, using the synergistic effect of rotational inertia and reverse airflow for non-contact deep cleaning. This avoids mechanical damage to the filter material, prevents secondary particle re-entrainment, and significantly reduces energy consumption and structural complexity.

This application relates to the field of environmental monitoring equipment technology, and in particular to a gas emission filtration device for environmental monitoring, comprising a housing, a rotating filter assembly, a power assembly, and an impurity collection assembly. The housing has an air inlet and an air outlet. The rotating filter assembly contains multiple layers of concentric annular filter screens with gaps between the layers. The power assembly drives the filter screens to rotate. The impurity collection assembly is located below. Centrifugal blades are provided between adjacent filter screens to enhance impurity separation; a unidirectional flow assembly is provided at the air outlet to prevent gas backflow. The device increases the filtration area through multiple layers of filter screens, reduces clogging by rotating the filter screens, assists in impurity separation with centrifugal blades, and ensures unidirectional gas discharge through the unidirectional flow assembly. This device effectively solves the problems of easy clogging and low efficiency in existing filtration devices, achieving efficient and stable filtration, meeting environmental protection requirements, and is suitable for various gas emission scenarios.