12results about How to "Short removal time" patented technology

The invention relates to the technical field of photocatalysts, in particular to a magnetic composite photocatalyst for removing antibiotics as well as a preparation method and application of the magnetic composite photocatalyst. The preparation method comprises the following steps: mixing choline chloride, glycerol, ethanol, a magnesium source, an iron source and citric acid, and carrying out complex reaction to obtain sol; adjusting the pH value of the sol, and then heating to form gel; igniting the gel to obtain a precursor; calcining the precursor to obtain the magnetic composite photocatalyst; in the mixing process, the molar ratio of the magnesium element in the magnesium source to the iron element in the iron source is (1-1.6): (1.8-2.4); the molar ratio of choline chloride to glycerol to ethanol is (0.5-1.5): (1.5-2.5): (0.1-0.3). By adopting the method, the magnetic composite photocatalyst composed of magnesium ferrite, magnesium oxide and ferric oxide can be prepared, and the magnetic composite photocatalyst has a relatively good treatment effect on antibiotics, and is high in removal rate and relatively short in removal time.

The invention provides a laser removal method for a damaged area of a carbon fiber composite laminate, and belongs to the technical field of laser processing of composites. According to the method, the removal shape of the outermost layer is a chamfered regular octagon, and the outermost layer is downwards removed layer by layer in a step shape. According to the method, the removal area of each layer of carbon fiber composite material can be reduced, and the removal time of a damaged region is shortened; in addition, by means of the method, the removal volume of the carbon fiber composite material can be reduced, excessive damage-free materials are prevented from being machined and removed, and the repair strength of the patching structure is improved.

The invention relates to a stamping device with deburring and stacking functions, and belongs to the technical field of stamping devices. Comprising a base, a feeding mechanism is arranged on the side edge of the base, a stamping machine body is installed on the base, a stamping mechanism for stamping and cutting coil stock on the feeding mechanism is installed on the stamping machine body, and a conveying mechanism is arranged on the bottom side of the stamping mechanism and used for conveying stamped sheets to a stacking mechanism; the stamping machine body comprises a movable mold plate, a fixed mold plate and a connecting rod, the stamping mechanism comprises an upper pressing mold and a lower pressing mold, the feeding mechanism comprises a feeding support and a material collecting support, the conveying mechanism comprises a first conveying belt, a grinding wheel assembly and a second conveying belt, the stacking mechanism comprises an inner ring component, a first telescopic motor, an arc-shaped plate and a lifting head, and a discharging mechanism is further arranged. According to the stamping piece stacking device, the stamping pieces are subjected to stamping piece cutting, deburring, stacking, discharging and other operations, the stamping pieces stacked in a staggered mode can be effectively smoothed, and the technical effects of efficient machining and orderly stacking of the stamping pieces are achieved.

The invention relates to the technical field of burr cleaning, in particular to a high-pressure jet system which comprises a high-pressure pump, a liquid supply pipeline, a nozzle, a pulse pressurizing mechanism and a controller, and one end of the liquid supply pipeline communicates with the output end of the high-pressure pump; the nozzle communicates with the end, away from the high-pressure pump, of the liquid supply pipeline. The pulse pressurizing mechanism is arranged on the liquid supply pipeline; and the controller is electrically connected with the high-pressure pump and the pulse pressurization mechanism and used for controlling the movement frequency of the pulse pressurization mechanism to be matched with the pressure pulsation frequency of the high-pressure pump so that a medium sprayed out of the nozzle can be in a pulse pressurization state. Pulse pressurization can be obtained with small energy consumption, and the impact damage capacity to hard burrs is improved.

The utility model discloses a graphite plate deburring tool, related to stamping die technical field, including work table, work table includes lower die holder and sets up the upper die holder in the upper of lower die holder, and is provided with the installation site of installing graphite plate in lower die holder, and the upper die holder includes fixed plate, drive mechanism and stamping mechanism, and the stamping mechanism includes stamping base and punch, and the stamping base is connected with drive mechanism, and the punch is connected with the side of the stamping base to lower die holder, and the punch has the stamping inner ring assembly close to the center of punch, and the stamping outer ring assembly is set up in the outer periphery of stamping inner ring assembly, and the graphite plate is pressed down by drive mechanism drive stamping mechanism to graphite plate, so that the stamping outer ring assembly of punch can stamp the outer ring of graphite plate to remove the outer ring burr of graphite plate, and make the stamping inner ring assembly stamp the through -hole of graphite plate to remove the burr of through -hole.

The invention belongs to the field of water content detection, and provides an intelligent konjac tofu water content detection device which comprises a base, a weighing sensor is fixedly installed on the base, the input end of the weighing sensor is fixedly connected with a bottom plate, the top of the bottom plate is connected with a vibrating plate through a plurality of vibrating springs, and the vibrating plate is connected with a water tank. A vibration plate is fixedly installed on the base, a heating plate is fixedly installed on the vibration plate, a heat conduction supporting plate is fixedly installed on the heating plate, the cutting mechanism is installed on the base, and one end of the cutting mechanism can move to the position above the heat conduction supporting plate. By arranging the cutting mechanism, the cutting mechanism cuts the konjak tofu into small particles, the vibration motor drives the heat conduction supporting plate and the konjak tofu to vibrate, the konjak tofu is dispersed, the konjak tofu can be turned over, the contact area of the konjak tofu and the heat conduction supporting plate is increased, the heating efficiency is improved, the moisture removal time is shortened, and the detection efficiency is improved.

The utility model provides a wafer transfer box which mainly comprises a box body, the box body is provided with a pump valve and an air valve, the pump valve is used for pumping air from the box body to adjust the pressure in the box body, and the air valve is used for filling protective gas into the box body; the air pressure control mechanism is respectively connected with the pump valve and the air valve, and the air pressure control mechanism is used for respectively controlling the opening or closing of the pump valve and the air valve. By controlling the air pressure change of the box body, the adhesion viscosity of an organic compound which exists in the deep layer of the wafer surface image or volatilizes slowly is reduced, the impurity removal degree in the wafer conveying box is improved, wafer defects caused by impurities in the wafer production environment are reduced, and the wafer yield is improved.

The application provides a method for removing hydrogen chloride from a chloride intermediate, and belongs to the technical field of chemical production processes. The chloride intermediate is introduced into a mixer from a material inlet of the mixer, and enters a refining kettle through a two-way channel of the mixer; after the introduction of the chloride intermediate is stopped, refining gas is continuously introduced into the mixer from the material inlet of the mixer for purging, and the chloride is obtained. The method provided by the application can make the material in the refining kettle produce internal circulation by limiting the structure of the mixer, so as to play a role of sufficient stirring and accelerate the removal speed of hydrogen chloride in the chloride intermediate. The results of the examples show that, after the method provided by the application is used for purging for 30 min, the actually measured hydrogen chloride content can reach below 0.05 mg / L, the removal time is greatly reduced, and the annual energy consumption reduction rate can reach 87.5%.

The utility model discloses an automobile part machining cooling mechanism which comprises a shell, a slotting plate is arranged on the lower portion in the shell, a screen frame rotationally connected with the slotting plate is arranged on the slotting plate in a penetrating mode, a side plate is fixedly connected to one side of the slotting plate, and a rotating mechanism connected with the screen frame is arranged on the side plate. Two hydraulic rods are fixedly connected to the inner top of the shell, the telescopic ends of the two hydraulic rods are fixedly connected to the grooving plate, a frame is arranged on one side of the shell, a filtering mechanism is arranged in the frame, an opening is formed in one side of the frame, and two fixing mechanisms are arranged on the opening side of the frame. And a liquid suction mechanism is arranged on one side of the frame body. By arranging the rotating mechanism and the filtering mechanism, residual cooling liquid on the automobile parts can be efficiently removed, the cooling liquid can be filtered, the working efficiency is improved, and meanwhile the quality of the parts is guaranteed.

This application relates to the field of Cd-containing wastewater treatment technology, and discloses a wastewater treatment agent, its preparation method, and its application. The preparation method of the wastewater treatment agent of this application includes the following steps: S1, crushing and screening waste concrete to obtain concrete particles; S2, washing and drying the concrete particles; S3, carbonizing the dried concrete particles in a sealed environment to obtain the wastewater treatment agent. The wastewater treatment agent of this application is prepared by the above method, and the prepared wastewater treatment agent can be applied to the field of Cd-containing wastewater treatment technology. The wastewater treatment agent prepared by this application is low in cost and can effectively remove Cd from wastewater. 2+ It removes substances quickly and can be reused.

The invention relates to the technical field of semiconductor equipment cleaning, in particular to a cleaning method for a polymer deposited on an aluminum-based silicon carbide shower head. According to the cleaning method, sediments on the inner wall of the gas uniformizing opening are efficiently removed through silicon carbide sand blasting, a protection water column is formed during grinding through a water grinding jig to prevent secondary pollution of particles, and adhesive microparticles are thoroughly removed through gap nitrogen purging. Compared with a traditional method, the method has the advantages that the sediment removal time is greatly shortened to 0.2-0.5 h from 4-6 h, the number of microparticles (particles with the particle size larger than or equal to 0.2 micrometer) on the surface of the cleaned shower head is remarkably superior to the standard limit value, and therefore the cleaning efficiency and reliability are greatly improved while the ultrahigh cleanliness is guaranteed.

The invention relates to the technical field of photocatalytic materials and wastewater treatment, in particular to a magnetic composite photocatalyst for removing tetracycline as well as a preparation method and application of the magnetic composite photocatalyst. The preparation method comprises the following steps: mixing choline chloride, glycerol, water, a zinc source, an iron source and citric acid, and carrying out complex reaction to obtain sol; adjusting the pH value of the sol, and heating to obtain gel; igniting the gel to obtain a precursor; and calcining the precursor to obtain the magnetic composite photocatalyst. The molar ratio of the zinc element in the zinc source to the iron element in the iron source is 1: (1.4-2.4); the molar ratio of choline chloride to glycerol is (0.5-1.5): (1.5-2.5); the ratio of the volume sum of choline chloride and glycerol to the volume of water is (10-25): (2-20). The magnetic composite photocatalyst prepared by the method can effectively remove tetracycline in a water body, the removal rate is high, and the removal time is short.