8results about How to "Meet separation needs" patented technology

The invention relates to the technical field of ore sample preparation, in particular to an automatic quartz ore chemical analysis sample preparation device which comprises a material table, a sampling table is fixedly arranged on the side wall of the material table, a feeding hopper is fixedly arranged on the front wall of the sampling table, the lower end of the feeding hopper is communicated with a crushing assembly, and a crushing box is arranged on the crushing assembly; a grinding assembly is fixedly arranged on the bottom face of the crushing box, a grinding box is arranged on the grinding assembly, a screening assembly is fixedly arranged on the bottom face of the grinding box, a hollow screening box is arranged on the screening assembly, and a discharging frame is fixedly arranged on the bottom face of the hollow screening box. According to the invention, the crushed ore particles are more uniform, the existence of large ore blocks is reduced, the crushing quality is improved, the continuity and stability of the crushing process are ensured, the grinding effect is improved, the ground quartz ore particles are more uniform and fine, and the graded screening of the ore particles is facilitated; and rapid sample preparation of automatic quartz ore chemical analysis is realized.

The invention discloses a liquid chromatography piston which comprises a connecting plate, two chromatographic columns are fixed below the connecting plate, and each chromatographic column is filled with a stationary phase filler; the two pistons are respectively arranged in the chromatographic column in a sliding manner, and threaded pipes are fixed above the pistons; the two nuts are rotationally arranged on the connecting plate respectively and are in threaded connection with the two threaded pipes respectively, and the position of the piston in the chromatographic column can be adjusted by rotating the nuts, so that the column length and the column pressure of the chromatographic column are changed; the two connecting strips are respectively fixed at the upper ends of the threaded pipes; the two liquid inlet pipes are arranged in the threaded pipe in a sliding mode, and the upper end of each liquid inlet pipe penetrates through the connecting strip and is fixedly connected to the same fluid director; compared with the prior art, the method has the advantages that the column pressure, the column length and the filling amount in the chromatographic column are flexibly regulated and controlled, the analysis time and the resource utilization can be optimized, and a remarkable progress is brought to the field of liquid chromatography analysis.

The utility model discloses a soil moisture distillation extraction device which is characterized in that a water pumping pipe hole and a water guide pipe hole are formed in a bottle cap of a buffer solution bottle opening, a buffer water guide pipe penetrates through the water guide pipe hole, and a water pump water pumping pipe and a control wire penetrate through the water pumping pipe hole; the ends, extending into the bottle, of the water pump pumping pipe and the control wire are connected with a water pump, and the ends, extending out of the bottle opening, of the water pump pumping pipe and the control wire are connected with a control switch. A water inlet in the bottom of the condensation reflux device is connected with the condensation water inlet pipe, a water outlet in the top of the condensation reflux device is connected with the condensation water outlet pipe, an inwards-concave semicircular collecting screen is arranged in a cavity of the condensation reflux device, and the lowest end of the inwards-concave semicircular collecting screen is connected with a double-helix condensation flow guide pipe; and a condensate drain hole is formed in the contact part of the concave semicircular collecting screen and the double-helix condensation flow guide pipe. The soil moisture distillation device disclosed by the utility model has the advantages of simple structure and convenience in operation, and solves the problems of non-uniform inlet of cooling water and slow steam condensation in the existing device.

This utility model relates to the field of analytical testing technology, specifically a water bath cooling device for analytical testing. It includes a device body, with a pick-and-place mechanism provided on the surface of the cover and the inner wall of the L-shaped seat. A universal placement mechanism is provided on the surfaces of the placement perforated plate, partition plate, and baffle plate. A temperature control mechanism is provided on the surface of the chamber and inside the cavity. This utility model not only enables quick and convenient pick-and-place of beakers on the surface of the placement perforated plate during use, reducing the time and difficulty for laboratory personnel, but also allows the water bath cooling device to accommodate beakers of different sizes, fully utilizes the limited space on the surface of the placement perforated plate, and improves the stability of beaker cooling. Furthermore, it ensures more precise water temperature inside the chamber, thereby guaranteeing efficient cooling of the beakers.

The utility model discloses paving equipment for road surface and roadbed construction, which comprises a rack, a traction mechanism is mounted on one side of the top end of the rack, a paving mechanism is mounted on one side in the rack, moving mechanisms are symmetrically mounted on the outer side of the rack, a machine shell is arranged on one side of the paving mechanism in the rack, and the moving mechanisms are symmetrically mounted on the outer side of the machine shell. A plurality of sets of arc-shaped first separating rods are installed at the bottom end of the machine shell at equal intervals, an adjusting mechanism is arranged in the machine shell, and the adjusting mechanism comprises a main shaft located in the machine shell. By arranging the machine shell, the first separating rod and the adjusting mechanism, in the paving process of a roadbed, the first separating rod is fixed to the front side of the paving mechanism through the machine shell, and a second separating rod in the adjusting mechanism is used in cooperation with the first separating rod, so that particles with large diameters in a gravel mixture can be effectively separated; therefore, concave-convex points on the surface of the roadbed are avoided, gaps among the paved gravels are prevented from being too large, and the quality of the roadbed is improved.

The invention discloses a high-speed gas-liquid mass transfer plate tower which comprises a tower body, a gas outlet pipe and a discharge pipe are arranged at the top and the bottom of the tower body respectively, a feeding pipe is arranged in the middle of the circumferential outer wall of the tower body, and a gas inlet pipe is arranged on the outer wall of one side close to the bottom of the tower body. A return pipe is arranged on the outer wall of one side close to the top of the tower body, mass transfer assemblies are arranged in the tower body, the mass transfer assemblies are distributed in the tower body at equal intervals, and each mass transfer assembly comprises a tower plate arranged in the tower body. According to the gas-liquid separation device, gas-liquid graded contact heat and mass transfer between materials can be achieved, the separation requirements of people for different materials are met, after a gas phase makes contact with a first arc-shaped plate to enable a dispersion sheet to rotate, the gas phase can rise along the outer wall of a second arc-shaped plate, and therefore the good guiding effect on the gas phase can be achieved; and a gas phase can be in full contact with a liquid phase sliding down along the inner wall of the adjusting cylinder for mass transfer.

The utility model discloses a soybean seed impurity separation device, include: equipment main part and adjusting part, the equipment main part is provided with the screening net in, the screening net inside is provided with manual screening mesh, adjusting part includes spacing baffle and is used for adjusting the push arc plate of screening mesh hole diameter size, spacing baffle is installed in the screening mesh hole inside through push arc plate, the utility model discloses adjusting part is set up, adjusts the push plate, extruding push arc plate, drives spacing baffle to move to the center of screening mesh hole, can adjust the size of screening mesh hole diameter, can according to the size of the size of screening mesh hole of soybean seed planting demand quick adjustment, to meet the different size of soybean seed screening separation demand, not only can reduce the time of replacing screening net, and then improve the work efficiency of soybean seed screening, but also can reduce the limitation of separation device use.

The present invention discloses a separation unlocking mechanism and separation unlocking method based on a rotating electromagnet, comprising an upper cylinder, a lower cylinder, a locking device, a rotating device, a pushing device, a driving device, a limit pin, a loading nut and a micro switch, wherein the upper cylinder is sleeved on the lower cylinder, the rotating device is installed on the driving device and can rotate with the driving device, the locking device is passed through the upper cylinder and the lower cylinder and abuts against the rotating device, locking the upper cylinder and the lower cylinder together, when the driving device receives a satellite separation signal, the rotating device is driven by the driving device to rotate from the abutting position to the disengaging position, releasing the abutment between the rotating device and the locking device, the locking device is disengaged from the upper cylinder, the upper cylinder and the lower cylinder are unlocked, and the upper cylinder is ejected under the action of the pushing device, completing the satellite-rocket separation. The present invention solves the problems of complex structure, high cost, large envelope size and heavy mass of the satellite-rocket separation mechanism.