摘要:
The material to be metered drops onto a plate 21 which is driven in rotation. This plate 21 is provided on its edge with a cylindrical wall 22 pierced by recesses 24. The plate 21 turns in a cylinder 3 which masks the recesses 24 except at a place where a hole 5 is provided. When the recesses 24 pass opposite the hole 5 they pass behind a screen 4. Each recess 24 is emptied when it passes behind the screen 4 and is otherwise filled under the effect of centrifugal force.
摘要:
A device for the metering of plastic raw materials of granulate, or pulverulent, or highly viscous consistency in connection with plastic materials processing machines, where a rotating metering disc at the bottom of a drum-shaped receptacle discharges fixed amounts of material at a predetermined frequency, and where the semi-circular metering pockets on the periphery of the metering disc are wiped clean by a vertically extending radially and circumferentially flexible wiper finger which dislodges any material that might otherwise adhere to the pocket flanks at the point of gravity discharge of the plastic material from the metering pockets.
摘要:
Provided are devices comprising multivolume analysis regions, the devices being capable of supporting amplification, detection, and other processes. Also provided are related methods of detecting or estimating the presence nucleic acids, viral levels, and other biological markers of interest.
摘要:
A low cost dry polymer processing system has an inverted submersible pump with a weir mounted on top of the pump housing and over an impeller in the housing. The weir is a combination of a sleeve and a coaxial funnel with a top edge of the funnel that is level with respect to gravity. An electrolyte liquid rising in the sleeve overflows the top edge of the funnel in order to form a liquid curtain uniformly covering the inside wall of the funnel. The amount of liquid is limited so that the impeller is not hydraulically locked. Dry polymer is dropped through the funnel and into the eye of the impeller. Thereafter, the remainder of the polymer processing is carried out by any suitable means.
摘要:
In order to provide a dispersion method and a dispersion apparatus capable of mixing a material to be processed and a dispersion medium having no affinity with each other using a single apparatus without using a dispersant, there are provided a quantitative supply mechanism quantitatively supplying a material to be processed, a suction stirring mechanism primarily including a suction stirring pump in which the material to be processed and a dispersion medium are subjected to negative pressure suction by a negative pressure suction force generated by rotation of a rotating blade and the suctioned material to be processed and the dispersion medium are stirred and mixed by the rotating blade and are allowed to pass through a throttle passage to cause cavitation, and a plasma generating mechanism generating a plasma in bubbles formed due to cavitation in a mixed liquid of the material to be processed and the dispersion medium.
摘要:
Provided are devices comprising multivolume analysis regions, the devices being capable of supporting amplification, detection, and other processes. Also provided are related methods of detecting or estimating the presence nucleic acids, viral levels, and other biological markers of interest.
摘要:
Provided are devices comprising multivolume analysis regions, the devices being capable of supporting amplification, detection, and other processes. Also provided are related methods of detecting or estimating the presence nucleic acids, viral levels, and other biological markers of interest.
摘要:
A liquid aeration system comprising: an intermittent liquid feeding means (10) located at an upstream position for receiving liquid from a liquid resource; a liquid storage means (20) located at an downstream position for receiving the liquid from the intermittent liquid feeding means (10) quantitatively and intermittently; and a pipe (30) connected between the intermittent liquid feeding means (10) and the liquid storage means (20), the outlet of which is located below the liquid surface of the liquid storage means (20), such that the liquid can flow from the intermittent liquid feeding means (10) through the pipe (30) into the liquid storage means (20) intermittently and quantitatively using the liquid level difference between the upstream position and the downstream position, so as to inject the air existed in the pipe (30) into the liquid in the liquid storage means (20).
摘要:
The present invention is a post-mix beverage dispensing valve for accurately maintaining the proper ratio of two liquid beverage components. The present invention includes a valve main body having a gear pump secured thereto. The gear pump includes two sets of oval gears. One set of oval gears is in fluid communication with a source of pressurized carbonated water, and the second set is in fluid communication with a source of syrup. The valve body also includes solenoid operated pallet valves for each of the beverage components. Ratioing of the solenoid provides for simultaneous opening of both pallet valves whereby the pressurized carbonated water flows between the carbonated water gears and is swept thereby through the valve body to the dispensing nozzle. One gear of each gear pair is secured to a common rotating shaft. Pressurized carbonated water provides for the rotation of the syrup gears, thereby providing for the pumping of the syrup to the nozzle. The gear pairs are sized so that the desired ratio between the beverage components is maintained.
摘要:
The metering device of the present invention comprises a cylindrical housing having a circular top wall and a circular bottom wall. The top wall has an inlet opening therein and the bottom wall has an outlet opening therein. The outlet opening and the inlet opening each comprise only a portion of the area of the top and bottom walls, respectively.A metering wheel is rotatably mounted within the housing and includes a plurality of pockets circumferentially spaced around its rotational axis. The pockets include open upper and lower ends. A horizontal cover plate is attached to the housing above the metering wheel so as to close off the portion of the inlet opening which is located directly above the outlet opening. The material to be metered drops through the inlet opening and is carried by the rotating pockets of the metering wheel toward the outlet opening. When the material reaches the outlet opening it drops by gravity out of the metering device.