6results about How to "Solve cross-contamination" patented technology

The invention discloses a self-suction type liquid extractor and a method. The extractor comprises a shell, an internal pressure cavity, a pressure generating unit, a liquid suction unit and a liquid spraying unit. The pressure generating unit linearly moves in the pressure cavity to alternately generate positive pressure and negative pressure; the liquid suction unit is provided with a first one-way flow guide structure and a filtering structure, and is opened and sucks filtered liquid under negative pressure; the liquid spraying unit is provided with a second one-way flow guide structure and an atomization structure, and is started under positive pressure to atomize and spray out liquid; and a locking mechanism is arranged on the pressure generation unit and is used for locking the position after descending and can automatically ascend under the action of reset force after unlocking. The closed type pressure cavity is adopted, pollution and liquid backflow are avoided, liquid suction, liquid storage and liquid spraying are continuously carried out with one hand through the operation mode of pressing locking and unlocking automatic reset, operation is easy and convenient, efficiency is high, and the liquid transfer device is suitable for scenes such as food tasting and experimental analysis needing sterile and accurate liquid transfer.

A kind of high-speed kneader for producing PP automobile modified material, it is related to the technical field of kneader, solve the problem that the structure of paddle is single in prior art, it is difficult to consider high-strength shearing and gentle mixing.The mixing cavity is connected with the discharge cavity at the bottom end, and the discharge cavity is provided with a discharge channel at the lower end;The top of the mixing cavity is connected with an electrical control box, and the top of the mixing cavity is also provided with a driving motor, a rotating shaft is coaxially connected in the mixing cavity, a combination stirring blade is fixed on the periphery of the rotating shaft, the combination stirring blade includes shear blade, conveying blade and cleaning blade, the shear blade, conveying blade and cleaning blade are arranged in order from top to bottom.The beneficial effect is: multiple functions can be realized by combination stirring blade, high-strength local shearing is provided, mixing is uniform, and mixing efficiency is high.

The utility model provides a kind of activated carbon filtering device for water purification, including base, discharge area is provided on the base, the first support and second support top are integrally formed with guide rail, installation frame is fixedly installed on the guide rail top, funnel is fixedly installed on the installation frame, water receiving tank is provided on the base top, activated carbon tray is provided above the water receiving tank, installation plate is fixedly installed on the activated carbon tray, the number of sector gate that is two is hinged on the installation plate by hinge, mesh is opened in the sector gate, flow guide cover is fixedly connected in the sector gate bottom, the flow guide cover corresponds with mesh, first lug is fixedly connected in the sector gate bottom, slot is opened in the first lug, and convex plate is fixedly connected on the activated carbon tray outer wall;The present activated carbon filtering device is convenient for replacing activated carbon, and the replacement process not only saves time and effort, but also can reduce the phenomenon that old carbon contacts hand or environment.

This invention discloses an automatically target-changing pulsed laser deposition apparatus and method. The apparatus includes a process chamber, a transfer valve, and a buffer chamber. The process chamber is connected to the buffer chamber via the transfer valve and is configured as an internal vacuum chamber. The buffer chamber has a door at its upper part and operates as a vacuum chamber. A sample stage is located on the upper inner side of the process chamber. Two neck tubes are located on the two sides of the process chamber for guiding an external laser source and mounting a laser detection device, respectively. The process chamber also includes a rotatable target stage for loading and unloading targets from the buffer chamber. The buffer chamber includes a rotating target stage mechanism and a vision camera for placing the target material and recording the bottom features of the target material, respectively. This invention provides an automatically target-changing pulsed laser deposition apparatus and method with a compact structure, precise positioning, and automatic target changing capabilities, enabling fully automated deposition of ultrapure thin films.

This invention relates to the field of auxiliary tools for baijiu (Chinese liquor) brewing, specifically disclosing a liquor collection device, comprising: a frame; a discharge assembly mounted on the frame, including a liquor outlet pipe, a driver for driving the assembly to rotate, and discharge ports located at both ends of its rotation axis; a mass flow meter fixedly mounted on the discharge assembly, with its fluid channel connected to the liquor outlet pipe and the liquor inlet pipe respectively at both ends, the mass flow meter being configured to rotate with the discharge assembly to achieve discharge; and a grading collection tray mounted on the frame and located below the liquor outlet pipe, comprising multiple collection boxes arranged in a ring and a rotating collection device located at the center of the ring; the rotating collection device is used to receive liquor from the liquor outlet pipe, and can rotate under driving force to guide the liquor to different collection boxes. This improves operational efficiency and measurement accuracy, thereby ensuring the production quality of baijiu.