57results about "Hazardous material storage" patented technology

Automated systems and methods for the quantitative collection and extraction of a fecal sample, the system including: a primary loading module configured to receive a plurality of primary stool specimen containers, and a secondary loading module configured to receive a plurality of secondary extraction tubes, each with a collection wand; a robotic arm for loading stool on the wand and inserting the stool-loaded wand into the extraction tube; a quality control module configured to assess and confirm whether loading of the collection wand meets a preset acceptable tolerance and if so, assisting with positioning of the robotic arm for accurate insertion of the stool loaded wand into the selected extraction tube; an exhaust module; and executable software loaded into the system and in communication with a database that pairs the primary stool specimen container with a corresponding secondary extraction tube(s).

An automated liquid handling device (10) for handling liquids (109) comprises: i. a reaction vessel device (18) comprising a reaction vessel arrangement (86) with a plurality of reaction vessels (88), wherein each reaction vessel (88) from the plurality of reaction vessels (88) has a discharge end (102) with a discharge opening (104), ii. a waste receiving device (46) for receiving liquid dispensed as handling waste through the dispensing opening (104) of the reaction vessels (88), wherein the waste receiving device (46) comprises a waste collection container (45) with a receiving volume (45a) for receiving the handling waste from the plurality of reaction vessels (88) and includes a waste container support (28), and iii. a pressure changing device (62b), wherein the pressure changing device (62b) is configured to change a gas pressure difference between an internal gas pressure in at least one reaction vessel (88) of the reaction vessel device (18) and an external gas pressure outside the at least one reaction vessel (88). The waste collection container (45) has a tub body (45c) and a container lid (45d) which is arranged on the tub body and covers at least most of the receiving volume (45a) of the waste collection container.

A contained drum discharge system comprising a drum and connected with a lifting mechanism, wherein the drum includes a primary liner bag having the toxic powdery material to be disposed, contained within the secondary liner bag, and a tertiary liner bag enclosing the secondary liner bag; a transparent glove box; a hopper connected at a top of the glove box and with a vacuum transfer system of a material processing reactor; and a control unit connected with the glove box via a rotation mechanism and with the lifting mechanism of the drum. The glove box includes a plurality of glove ports connected with respective glove attachments; a plurality of thrashout ports with door; a sealing gasket to connect with the drum; a first liner port; a second liner port and a third liner port.

A safety cabinet includes an enclosure and at least one door to selectively seal the enclosure. The safety cabinet can be used to store, for example, flammable liquids, flammable waste, corrosive agents, pesticides, or combustible waste. The safety cabinet includes a heat-actuated damper including a body, a valve plate, and a pivot assembly. The valve plate is disposed within a passageway of the body such that the valve plate is movable between an open position and a closed position. The pivot assembly includes a biasing system adapted to bias the valve plate to the closed position and a fusible link interconnected between the body and the biasing system to limit movement of the valve plate from the open position to the closed position. The fusible link is configured to melt at a predetermined temperature, thereby allowing the biasing system to move the valve plate to the closed position.

The invention relates to the technical field of laboratory hazardous chemical substance storage equipment.The intelligent monitoring type gas purification type hazardous chemical substance cabinet comprises a cabinet body and cabinet doors, the front surface of the cabinet body is hinged to the two cabinet doors which are symmetrically distributed in the left-right direction, a sealing device is arranged in the cabinet body, and the sealing device comprises a double-layer sealing ring, a sliding frame and a linkage assembly; the linkage assembly comprises a first positioning rod, a first connecting rod, a second connecting rod, a third connecting rod and a second positioning rod. Through a mechanical linkage structure of the cabinet door and the sealing device, immediate synchronization of door closing action and sealing action is achieved, the effect of blocking leakage through cooperation of double sealing and oil sealing is achieved, a secondary sealing barrier is formed through oil liquid in an oil groove in the peripheral side of the sealing ring, the problems that traditional sealing stress is uneven, and a center seam leaks for sealing are thoroughly solved, and the service life of the sealing device is prolonged. Omnibearing sealing can be formed at the moment when the cabinet body is closed, the risk of dangerous chemical gas leakage is eradicated from the source, and the safety protection level in the storage process is remarkably improved.

The application discloses an intelligent classified storage dangerous chemical cabinet, and relates to the technical field of safety cabinets, which comprises a main cabinet body, a scanning port is arranged on the front face of the main cabinet body, and a control panel is arranged on the front face of the main cabinet body. The first missing gear, the second missing gear, the third missing gear, the four full gears, the three rotating shafts, the three motors, the four supporting plates, the four transmission wheels and the transmission belt are arranged, so that the complicated plc control of the rotation of each motor is not needed, the identification of the scanning port is only needed, the corresponding motor is started, the dangerous chemical needed is moved to the entrance, the operation steps are simplified, the dangerous chemical is prevented from being mixed by the operator, the energy consumption is greatly reduced, the national energy conservation and environmental protection call is responded, the scanning port and the control panel are used for automatically identifying and classifying the dangerous chemical, and the efficiency is improved and the error risk of manual operation is reduced.

The invention discloses inorganic chemical experiment sewage treatment equipment, and relates to the technical field of sewage treatment. The inorganic chemical experiment sewage treatment equipment comprises a treatment tank, a scattering mechanism and a stirring mechanism, the scattering mechanism comprises a servo motor and a connecting rotating shaft, a conical cap is fixedly mounted in the middle of the outer circular surface of the connecting rotating shaft, stirring blades are fixedly mounted on the conical surface of the outer side of the conical cap, and an arc-shaped notch is formed in the edge of the outer side of the conical cap; the stirring mechanism comprises a connecting supporting rod and a bent stirring rod, a semi-conical block is fixedly installed at the bent position of the outer side of the bent stirring rod and close to the arc-shaped notch, a material mixing blade is fixedly installed at the bottom end of the bent stirring rod, and a conical hopper is installed on the side of the outer side of the material mixing blade; a reset tension spring is fixedly mounted at the position, close to the bottom of the conical cap, of the bent stirring rod, so that the purpose of uniform mixing is achieved, the medicament can be stirred and sprinkled, the medicament is in full contact with sewage, and the sewage treatment effect is good.

The utility model discloses an intelligent ventilation cabinet which is used for extracting experiment waste gas generated by experiment liquid and is in signal connection with a block chain network. The intelligent ventilation cabinet comprises a ventilation cabinet body, a chip set and a detection module. The ventilation cabinet comprises an experiment groove, a movable door and an air draft pump. The experiment groove is used for containing experiment liquid. And the movable door is movably connected with the experimental tank. The air draft pump is communicated with the experiment groove and used for extracting experiment waste gas. The chipset is arranged in the ventilation cabinet, the chipset comprises a block chain information tracing piece, and the block chain information tracing piece is in signal connection with the block chain network and is used for recording the source of the experimental liquid and a circulation process of the experimental liquid in the block chain network for tracing. The detection module is arranged in the ventilation cabinet and is in signal connection with the chipset; and the detection module is used for measuring the gas property of the experimental waste gas.

The invention discloses a liquid drop generation system and device. The system comprises a liquid drop generation assembly, a negative pressure device, a temperature control device and a receiving device. One end of the droplet generation assembly is communicated with the liquid container, and the other end of the droplet generation assembly outputs a product; the temperature control device provides a first environment temperature for droplet generation; one end of the receiving device is connected with the droplet generation assembly, and the other end is connected with the negative pressure device; the negative pressure device provides a negative pressure source, the liquid drop generation assembly generates liquid drops based on the negative pressure source, and the receiving device is used for receiving generated products and / or stabilizing pressure. The environment temperature required by an experiment is provided by the temperature control device, the negative pressure device outputs pressure, and on the basis, the negative pressure device, the receiving device and the liquid drop generation assembly are respectively communicated, so that a system capable of providing refrigeration, pressure control and follow-up treatment support for the liquid drop generation process is constructed; different functional components can be arranged in the receiving device, so that the receiving device can be used as a device for transferring and collecting to carry out treatment such as pressure stabilization, incubation or refrigeration.

The invention relates to the technical field of water treatment, and discloses a laboratory waste liquid disposal device for environmental monitoring, which comprises a water inlet pipe and a drain pipe I. The bottom of the water inlet pipe is fixedly connected with a detector. According to the laboratory waste liquid treatment device, the distillation device is arranged, laboratory waste liquid containing neutralizing liquid is distilled through the distillation device, the neutralizing liquid and the laboratory waste liquid are separated in a distillation mode, and the laboratory waste liquid reaches the discharge standard; the laboratory waste liquid and the neutralization liquid are separated, the distilled and separated neutralization liquid is prevented from falling back into the laboratory waste liquid, a flow guide assembly is arranged, the distilled and separated neutralization liquid is guided and collected in time through the flow guide assembly, and the separated neutralization liquid is prevented from falling back into the laboratory waste liquid after being evaporated again and the concentration is increased. The laboratory waste liquid disposal device for environmental monitoring can be normally used.

A smart fume hood is used for extracting the experimental waste gas generated by an experimental liquid and is electrically connected to a blockchain network. The smart fume hood includes a fume hood, a chipset, and a detection module. The fume hood includes an experimental tank, a moving door, and a peristaltic pump. The experimental tank is used for holding the experimental liquid. The moving door is movably connected to the experimental tank. The peristaltic pump is connected to the experimental tank and used for extracting the experimental waste gas. The chipset is located in the fume hood and includes a blockchain information tracking part. The blockchain information tracking part is electrically connected to the blockchain network and used for recording the source and logistics information of the experimental liquid on the blockchain network for tracing.

The invention relates to a door assembly (1) for a sealed enclosure, said enclosure comprising a wall having a wall portion (20) defining at least one passage opening therein, said door assembly (1) comprising a flange (3) intended for being attached to the wall portion (20), characterised in that the flange (3) comprises two flange elements (3a, 3b) assembled together, one of the flange elements (3a) defining a ring inside the enclosure, the other flange element (3b) defining a ring outside the enclosure, and means for clamping at least one of the two flange elements (3a, 3b) against the wall portion (20).

A method for draining oil from a pressure instrument is characterized in that a large amount of oil is often left in the instrument detached from the site, laboratory verification of the pressure instrument has extremely high cleanliness requirements, if the oil leaks, verification precision is interfered, verification equipment is damaged, and traditionally, workers mostly adopt a manual single oil draining mode or a simple support oil draining mode, so that the oil draining efficiency is greatly improved. In order to solve the problems of low efficiency, disordered oil collection, easy secondary pollution of lower-layer instruments and the like in the prior art, the oil collection device comprises at least two layers of vertical frames, a flow guide structure and an oil collection structure, the flow guide structure is fixed below a placement frame of each layer of vertical frame, and each layer of placement frame is fixedly connected through four stand columns; an oil collecting structure is arranged on the lowermost layer of the vertical frame; the flow guide structure comprises an upper structure, a lower structure is fixed to the lower end of the upper structure, and an outlet of the lower structure penetrates through the guide opening of the lower layer of the layer where the flow guide structure is located and extends to the position below the guide opening. The device is used for oil drainage of the pressure instrument.

The present application provides a kind of light experimental carrying case, including box cover openable and closable box, and box cover can be detached, the inside of the box is sequentially arranged with low temperature part, normal temperature part and garbage disposal part, and the low temperature part and normal temperature part and the normal temperature part and garbage disposal part are all provided with partition to isolate, the low temperature part is equipped with several box racks that can place reagent box, and box rack can be realized telescopic, the normal temperature part is provided with test tube area, general area and insert hanging area, and the box is also provided with small experimental equipment placement area;The carrying case is convenient to carry, the internal distribution is reasonable, all the experimental equipment required is classified clearly, and the experimental equipment in the box can also be displayed one by one, reduces the time of experimental personnel to take experimental equipment, guarantees the coherence of experiment, the garbage generated in experiment can be treated in time, avoids laboratory hygiene problem, the present application also provides a kind of operation method of light experimental carrying case.

The invention relates to the technical field of biochemical detection, in particular to a moving track control method of an automatic culture cabinet material conveying device. The moving track control method of the material conveying device comprises the following steps that after a telescopic mechanism is rotated and moved to a target storage layer of a target column storage rack, an inner ring rotating mechanism and an outer ring rotating mechanism are locked through a control module, and a telescopic rod enables an objective table to move to a first position from an initial state; and after the objective table reaches the first position, the objective table is lifted to a second position of the target storage layer through the lifting mechanism, and when the objective table carries a first material, after the vertical sensor sends a signal that the material conveying device obtains the first material, the objective table retracts to an initial state.

The safety cabinet of the present invention has an opening on the front of the working chamber and a front door, which supplies clean air to the working chamber from above. Side slits are provided on the side of the working chamber, so that the air from the side slits converges into the airflow path drawn in from the front mesh of the worktable forming the bottom surface of the working chamber, thus preventing airflow turbulence even when a device is provided in the working chamber.

The present invention relates to a door assembly (1) for a sealed enclosure, the enclosure comprising a wall having a wall portion (20) defining at least one passage opening therein, the door assembly (1) comprising a flange (3) intended to be attached to the wall portion (20), the flange (3) comprising two flange elements (3a, 3b) assembled together, one of the flange elements (3a) defining an internal ring of the enclosure and the other flange element (3b) defining an external ring of the enclosure, and means for clamping at least one of the two flange elements (3a, 3b) against the wall portion (20).

The invention relates to an automated liquid handling apparatus (10) for handling liquids (109), said apparatus comprising: i. a reaction vessel device (18) having a reaction vessel assembly (86) with a plurality of reaction vessels (88), wherein each reaction vessel (88) of the plurality of reaction vessels (88) has an outlet end (102) with an outlet port (104), ii. a waste-liquid receiving device (46) for receiving liquid discharged through the outlet port (104) in the reaction vessels (88) as handling waste, wherein the waste-liquid receiving device (46) comprises a waste collection container (45) with a receiving volume (45a) for receiving the handling waste from the plurality of reaction vessels (88) and comprises a waste container holder (28), and iii. a pressure modification device (62b), wherein the pressure modification device (62b) is designed to modify a gas pressure difference between an internal gas pressure in at least one reaction vessel (88) of the reaction vessel device (18) and an external gas pressure outside the at least one reaction vessel (88). The waste collection container (45) has a tray body (45c) and a container lid (45d) which is arranged on the tray body and covers at least most of the collection volume (45a) of the waste collection container.

The invention belongs to the technical field of laboratory equipment, and discloses a laboratory waste liquid collection system, which comprises: a waste liquid collection barrel, the waste liquid collection barrel is integrally formed by a cylindrical barrel body and an inverted trapezoidal base located at the bottom of the cylindrical barrel body, and the bottom of the inverted trapezoidal base is provided with a plurality of mounting grooves; the outer side wall of the cylindrical barrel body is provided with scale marks and a safe exhaust hole; a raised handle is arranged at the top of the outer side wall of the cylindrical barrel body; the barrel cover is installed at the top of the cylindrical barrel body, a protruding waste liquid inlet is formed in the upper portion of the barrel cover, and the waste liquid inlet is communicated with the interior of the cylindrical barrel body; the lifting handle and the waste liquid inlet are matched with the mounting groove, and a plurality of waste liquid collecting barrels can be stacked in sequence through the matching of the lifting handle, the waste liquid inlet and the mounting groove. According to the technical scheme, the device is simple in structure, safe and reliable, and the safety and convenience of laboratory waste liquid management are remarkably improved.

Presented is a method and apparatus for loading. The method includes loading one of an individually sterilized item or a non-sterile item into the cart, the cart comprising a top portion, and a plurality of wheels fixedly coupled to a bottom portion of the cart able to freely rotate and support the cart. The method further includes loading a sterilizing cabinet onto the cart, the sterilizing cabinet being removeably affixed to the cart and comprising an interior, the interior containing collectively sterilized items, the interior being sterilizeable and resealable.

A system for dispensing a liquid in a closed chamber includes at least one rapid transfer port in at least one wall of the closed chamber. In addition, a liquid is dispensed in a closed chamber that includes at least one rapid transfer port in at least one wall of the closed chamber.

The invention relates to the field of chemical reagent storage, in particular to a reagent storage device for chemical experiments. The invention provides a chemical experiment reagent storage device which comprises a storage cabinet, the interior of the storage cabinet is divided into an upper compartment and a lower compartment, an exhaust pipe and an exhaust fan are arranged on the top wall of the storage cabinet, each compartment is provided with a closed closing door, and glass facilitating observation is arranged on the closing door on the upper side. Symmetrically distributed guide frames are fixedly connected to the inner wall of the upper compartment, a rotating plate is rotationally connected to an opening of each guide frame, and a torsional spring is connected between the rotating plate and the adjacent guide frame. Through linkage of the automatic sealing device and the highly toxic gas monitoring system, the cabinet door is locked in time, and gas diffusion is prevented; a fool-proof mechanism ensures cooperative operation of two persons, and errors are avoided; the storage box collects leaked liquid, the rotating plate controls the guide frame channel to be opened and closed, storage and taking convenience, leakage prevention performance and emergency treatment efficiency are optimized, and the safety of a laboratory is remarkably improved.

The invention discloses a teaching test bed for analytical chemistry in the technical field of chemical experiment equipment, which comprises a main test bed and an auxiliary test bed, a driving unit is arranged between the main test bed and the auxiliary test bed, and the driving unit is electrically connected with a controller; an adjusting assembly is arranged on one side of the main test bed; a plurality of image collectors are arranged at the top of the main test bed; the top of the main test bench is provided with a cleaning assembly. And the controller is used for analyzing the personal information of the experimenter and the step information of the experimenter during the experiment based on the image information acquired by the image collector, and judging whether the current operation step of the experimenter is accurate or not based on the preset experiment standard step information. By analyzing the image information acquired by the image collector, not only can the correctness of the operation steps of an experimenter be judged and the experimenter be reminded of correct test steps or methods according to the test process, but also the set height can be adjusted according to the height of the experimenter, and the test bed can be automatically cleaned after the test is finished.

The invention discloses a pathological sampling table capable of collecting chemical wastes in a split-flow manner. Comprising a working table with a table top; the water tank is embedded in the table top and is provided with a cleaning tank with an upper opening, a partition plate is arranged in the middle of the cleaning tank so as to divide the cleaning tank into a sewage tank and a waste tank, sewage discharging ports are formed in the bottoms of the sewage tank and the waste tank, and the sewage discharging ports are connected with sewage discharging pipes; the cover plate is slidably arranged at the upper end of the water tank in a covering mode and has a first covering state and a second covering state, and the cover plate in the first covering state and the cover plate in the second covering state cover the sewage tank and the waste tank respectively. According to the design of the water tank, the cleaning tank is divided into the sewage tank and the waste tank through the partition plate, so that chemical waste and common sewage can be collected respectively. According to the split-flow design, the chemical waste is prevented from being mixed with common sewage, so that the subsequent waste liquid treatment cost is reduced, meanwhile, the chemical waste can be collected in a targeted manner, and the management requirement of dangerous chemical waste liquid is met.

The present invention relates to the technical field of waste collection devices, and in particular to an integrated biomaterial waste collection device, comprising an outer protective cylinder, a cover, a detachable biosafety liner, a sealing structure, a ring-cutting structure, and a compacting structure; the sealing structure of the present invention can compact the waste in the detachable biosafety liner waste bag internally, thereby preventing the waste from overflowing from the detachable biosafety liner waste bag and preventing the bag from rupturing due to the displacement of the waste during transportation; the present invention can cover the top of the garbage bag in the inner cylinder with a biosafety film through the cooperation of the sealing structure and the ring-cutting structure, and complete the cutting of the biosafety film, thereby completing the sealing of the garbage bag inside the inner cylinder by the biosafety film, thereby preventing garbage from falling out of the inner cylinder during movement and preventing bacteria and viruses contained in the garbage in the garbage bag in the inner cylinder from spreading along the way.

The invention relates to the technical field of solid-liquid separation, in particular to a filtering device for biological sample detection and a filtering method.The filtering device comprises a machine base, a sample carrying table, a filtering unit, a liquid transferring unit and a control unit.The sample carrying table is provided with a filtering pipe containing area, a to-be-treated sample area, a filtered sample area, a clean suction head storage area and a waste area at intervals; a reverse filter pipe is arranged in the filter pipe placing area, and an outer sleeve is arranged in the to-be-treated sample area. Through the cooperation of the reverse filter tube, the outer sleeve, the filter unit and the pipetting unit, the pretreatment process of a biological sample is realized, meanwhile, the whole treatment process is convenient and rapid, the time is saved, and the purpose of high-flux solid-liquid separation is also realized.

The invention relates to the technical field of experimental waste liquid treatment, and discloses a waste liquid collecting device applied to an analytical chemistry laboratory, the waste liquid collecting device comprises a base, the upper surface of the base is provided with a collecting groove, the side surface of the base is fixedly connected with a supporting plate, and the upper surface of the supporting plate is fixedly connected with a storage tank; a collecting mechanism for collecting waste liquid generated in a laboratory is arranged on the upper surface of the supporting plate, when the waste liquid generated in the laboratory needs to be collected, the waste liquid generated in the laboratory can flow into a storage tank, and the waste liquid in the storage tank can flow into a moving groove through a liquid inlet pipe; the waste liquid enters the liquid conveying pipe through the connecting hole and the through hole and flows into the collecting tank, so that the waste liquid is collected, the waste liquid is not in contact with outside air in the whole process, the waste liquid is conveniently collected, and when the lifting plate moves to be flush with the upper surface of the collecting tank, the purpose of sealing the flowing of the waste liquid is achieved.

An automated, large-scale, energy-efficient biological material storage and retrieval system stores a large number of samples in a tray. The system includes a heat exchanger for capturing and recirculating residual energy, a movable wall, a storage compartment, a multi-tray shuttle compartment with shuttles, a plenum for maintaining the temperature of air between the compartments and along sections within the storage compartment, a mechanism for opening and closing partitions between the compartments, and a tray connector for releasing or attaching one or more trays within the compartment, the tray connector configured to minimize energy loss during operation.

An automated, large-scale, energy-efficient biological material storage and retrieval system stores large quantities of samples in trays. The system includes a heat exchanger to capture and recycle residual energy, a movable wall, a storage compartment, a multi-tray shuttle compartment with shuttle, a plenum to maintain air temperature between compartments and along the sections within the storage compartment, a mechanism to open and close dividers between compartments, and a tray connector to release or attach one or more trays within a compartment configured to minimize energy loss during operation.

To provide a door assembly that can be assembled simply, quickly and easily without altering the walls of the enclosure.SOLUTION: The current invention is a door assembly (1) for a sealed enclosure. The enclosure includes a wall having a wall part (20) defining at least one passage opening therein. The door assembly (1) includes a flange (3) that is intended to be fitted to the wall part (20). The flange (3) includes: two flange elements (3a, 3b) assembled together, one of the flange elements (3a) defining a ring inside the enclosure, and the other flange element (3b) defining a ring outside the enclosure; and means for clamping at least one of the two flange elements (3a, 3b) to the wall part (20).SELECTED DRAWING: Figure 2