40 results about "Bench scale" patented technology

The invention relates to a bench-scale dynamic membrane bioreactor capable of continuously updating a dynamic membrane, which is characterized in that: a container is divided into an upper aerobic zone and a lower anoxic zone by a separating orifice plate, and an aerator group is arranged on the separating orifice plate; a microgrid component consists of a wave curve-shaped microgrid net body, a casing, a bottom net, 2 to 3 layers of spherical porcelain granules uniformly spread on the bottom net, a backwash nozzle, an air-jet wash-out brush head, a hollow shaft tube, and a rotation driving mechanism, wherein backwash nozzle and the air-jet wash-out brush head are arranged above and under the net body respectively and are positioned on the same plane, and the hollow shaft tube and the rotation driving mechanism drive the backwash nozzle and the air-jet wash-out brush head to rotate continuously; the microgrid component is arranged on the top of a tank horizontally; and the center of the microgrid net body is provided with the hollow tube the inside of which has a built-in separating plate, the part, above the separating plate, of the shaft tube is connected with the rotation driving mechanism, a water source and the backwash nozzle, the part, blow the separating plate, of the shaft tube is connected with an air source and the air-jet wash-out brush head, and the lower end of the hollow shaft tube rotates and is connected with the aerator group in a sealing mode. The invention has the advantages of improving denitrification and dephosphorization effect, achieving microfiltration solid-liquid separation effect, ensuring effluent flux and optimizing and simplifying power and control systems.

The invention relates to a sterile filling infusion system with automatic liquid feeding control. The sterile filling infusion system comprises: a peristaltic pump, a terminal filter, a bench scale, an air filter, an infusion tube, a filling pump and a liquid storage tank, wherein the liquid storage tank comprises an upper cover and a tank body, the liquid inlet of the liquid storage tank is positioned on the upper end of the tank body, and is connected with the outlet of the terminal filter, the liquid outlet of the liquid storage tank is positioned on the lowest end of the tank body, and is connected with the filling pump through the infusion tube, the upper cover of the liquid storage tank is connected with the air filter, and the liquid storage tank is placed on the bench scale. With the agent filling infusion system of the present invention, the liquid feeding can be automatically controlled, the staff operation can be saved, the pollution during the sterile operation process can be reduced, and the product quality can be ensured.

An industrial scale batch or semi-continuous batch PHA extraction process wherein the process operating conditions and control may be quantitatively tuned to batch-to-batch variations based on a practical bench scale assessment but more preferably by means of a calibrated chemometric assessment of the biomass quality. Tuning involves the selection of biomass loading conditions that are commensurate with process solvent and PHA type. Batch operating times and temperatures are matched to modelled and monitored extraction kinetics. PHA-rich solvent gelation is exploited by controlling PHA-rich solvent gel formation. In combination a process Is disclosed that permits for robust and consistent recovered product quality control while at the same time enabling to improve overall process economics.

The invention discloses a multi-group bubbling type photobioreactor which comprises a box body, bubbling type photobiologic reaction units, a main air duct, light sources and a control system, wherein at least two bubbling type photobiologic reaction units are placed in rows in the box body, the main air duct is connected to an air-blowing pipe and a gas distributor in each bubbling type photobiologic reaction unit through gas-distributing branch pipes, the light sources are placed at both sides of each bubbling type photobiologic reaction unit, and the control system comprises a temperature control system and a light source control system for controlling the temperature in the box body and the intensity of the light sources. The invention supplies a batched, controllable and mature facility for the microalgae culture in laboratory and bench scales.

The invention discloses a simple fiberboard bending tester and a testing method. The tester comprises a support, a bench scale, a pressure mechanism and a sample loading carrier, wherein the sample loading carrier is placed on the bench scale, the sample loading carrier is provided with two support cross bars for supporting the two ends of a fiberboard, and the pressure mechanism is arranged above the sample loading carrier and is liftably arranged on the support. According to the invention, when the fiberboard is detected, the pressure mechanism goes down to apply pressure on the central portion of the fiberboard, the fiberboard generates a certain elastic deformation, the fiberboard restores the elasticity because of the interaction of power, the two support cross bars receive the pressure generated by the elasticity recovery of the fiberboard, the pressure is transmitted to the bench scale, and the bench scale displays the bending resistance data. The tester utilizes the pressure mechanism and the sample loading carrier to simulate the bending handle, and utilizes the display of the bench scale display screen to calibrate the result data, thus the bending resistance of the fiberboard can be simply detected, and the bending resistance of products can be calibrated accurately.

The present invention provides methods for optimization of the harvest process by clarification of cell samples using centrifugation and depth filtration. The present invention provides methods for the determination of the optimal ratio of Q / Σ for the centrifugation step of a harvest process of a cell culture. The present invention provides methods for the determination of the number of particles and the size of the particles in the centrate of a centrifugation step of a harvest process of a cell culture by the use of imaging technology. The present invention provides methods for the scaling of the harvesting process from lab-bench scale to industrial scale.

The invention relates to a bench-scale experiment device for a nitrogen containing organic waste gas heat storage type incinerator. The bench-scale experiment device comprises an organic waste gas generator and an air filter. The organic waste gas generator is connected with a sucking pump through a gas inlet pipe I. The air filter is connected with the sucking pump through a gas inlet pipe II. Aflowmeter I is arranged on the gas inlet pipe I. A flowmeter II is arranged on the gas inlet pipe II. The sucking pump is connected with a simulated incineration device through a main pipe. A waste gas VOC detector is connected with the main pipe between the sucking pump and the simulated incineration device through a branch pipe I. The bench-scale experiment device can implement simulated incineration under the conditions of different temperatures and different organic matter concentrations.

The invention relates to the indexing of the workbench of a machine tool. The technical proposal is: comprising a rotary indexing workbench, a movable toothed plate, a fixed toothed plate, a fastening toothed plate and a base. The center of the base is fixed with a concave conical upper end. The lower support seat of the hole, the concave conical hole is equipped with a rotary ball, the upper part of the rotary ball is exposed from the concave conical hole, and the upper part of the rotary ball is contained in the concave shape at the center of the lower side of the rotary indexing table. In the conical hole, the movable toothed plate is divided into 12 equal parts along the direction of the fan-shaped surface, and the fixed toothed plate is processed with three 30° conical tooth surfaces. The angle between the centerlines of two adjacent tooth surfaces is 120°, the fixed tooth disc between two adjacent tooth surfaces is a smooth surface.

The invention relates to a bench-scale dynamic membrane bioreactor capable of continuously updating a dynamic membrane, which is characterized in that: a container is divided into an upper aerobic zone and a lower anoxic zone by a separating orifice plate, and an aerator group is arranged on the separating orifice plate; a microgrid component consists of a wave curve-shaped microgrid net body, a casing, a bottom net, 2 to 3 layers of spherical porcelain granules uniformly spread on the bottom net, a backwash nozzle, an air-jet wash-out brush head, a hollow shaft tube, and a rotation driving mechanism, wherein backwash nozzle and the air-jet wash-out brush head are arranged above and under the net body respectively and are positioned on the same plane, and the hollow shaft tube and the rotation driving mechanism drive the backwash nozzle and the air-jet wash-out brush head to rotate continuously; the microgrid component is arranged on the top of a tank horizontally; and the center of the microgrid net body is provided with the hollow tube the inside of which has a built-in separating plate, the part, above the separating plate, of the shaft tube is connected with the rotation driving mechanism, a water source and the backwash nozzle, the part, blow the separating plate, of the shaft tube is connected with an air source and the air-jet wash-out brush head, and the lower end of the hollow shaft tube rotates and is connected with the aerator group in a sealing mode. The invention has the advantages of improving denitrification and dephosphorization effect, achieving microfiltration solid-liquid separation effect, ensuring effluent flux and optimizing and simplifying power and control systems.

An apparatus for testing a cleaning procedure for a material. The apparatus includes a rack having a seat configured to retain a plurality of test coupons at a predetermined angle, an upper tray that distributes a solution along the lines of the rack, a lower tray for receiving solution passed over coupons disposed on the rack, a meter that gauges a flow rate of the solution, a thermostatic heater adapted to bring the solution to a predetermined temperature, and a variable speed pump that directs the solution from a reservoir to the upper tray.

The invention relates to an intelligent aggregate proportioning platform scale, which effectively solves the problem that the existing aggregate proportioning platform scale cannot automate the proportioning test for the optimum particle size aggregate and the optimum cement dosage according to needs; The technical scheme includes: the intelligent aggregate proportioning platform scale can complete the proportioning between aggregates of different particle sizes and the corresponding cement dosage, and carry out the compression test on the test pieces made under the corresponding proportioning, and finally get the final result. The mixing ratio of the best aggregate particle size and the best cement dosage, and under the action of the mixing platform scale, the whole test mixing process is highly automated, which provides greater convenience for the work of the test personnel and greatly reduces the Reduced the labor intensity of the test personnel.

The invention discloses a method for preparing diethyl oxalate by CO coupling reaction. By applying a gas phase method, CO is coordinated with ethyl nitrite and is catalyzed by bimetallic supported catalyzer to couplingly generate crude diethyl oxalate, the reaction is a self-sealing circulation process, the CO gas mixed with the ethyl nitrite coming from a regeneration reactor is preheated and then enters into a coupling reactor, after the reaction, the gas is separated by condensation, so that the colorless and transparent condensed diethyl oxalate liquid is produced, and the uncondensed gas containing NO enters into the regeneration reactor to react with ethanol and oxygen in order to generate ethyl nitrite which is again circulated back to the coupling reactor for continuous use. The invention is carried out on the basis of previous laboratory research and under the background of industrial production and fulfils the continuous run examination of the bench scale test and pilot magnification under the condition of industrial operation, the temperature of the coupling reaction is low, and the concentration of products is increased. The method has the advantages of more energy saving, no pollution and high benefit. The total conversion rate of the CO generated by reaction is one hundred percent, and the selectivity of diethyl oxalate is over ninety six percent.