19 results about "Contamination" patented technology

A fermentation process for the production of ethanol from natural sources, such as corn, comprising introducing a fermentable sugar and an inoculant, and a bacteriophage cocktail into a fermentation system and introducing a cocktail comprising one or more lytic bacteriophage is added to one or more of the fermentable sugar, the inoculant, or the fermentation system. Bacteriophages that infect and lyse the bacteria that contaminate fermentable sugars are selected. The bacteriophage cocktail is added in an amount effective to substantially prevent growth of these bacteria.

The invention relates to a device for testing a contamination characteristic of a segmental temperature control coal burning boiler. The device comprises a hearth and a flue, wherein the lower end of the hearth is connected with a combustor for spraying coal powder and an opposed air pipeline; the combustor is connected with a primary air inlet pipeline and a secondary air inlet pipeline respectively; the primary air inlet pipeline and the secondary air inlet pipeline as well as the opposed air pipeline are communicated with an air blower respectively; a heat preservation layer is arranged on the outer side of the hearth; a plurality of electric heating elements are arranged on the wall of the hearth in a segmental manner; segmental cooling clamping sleeves are arranged outside the flue; the tail of the flue is connected with a heat exchanger; and a plurality of test holes are formed in the hearth and the flue. The device can simulate various temperature situations of the hearth of the actual boiler, so that the stability and the flexibility of a test system are improved; by adopting segmental electric heating, the hearth can be stabilized at test required temperature; by adopting the segmental cooling clamping sleeves, the smoke temperature in the flue can be precisely controlled in a required range, and environments at different positions of the flue in the actual boiler can be simulated; and the contamination characteristic of the coal powder in different smoke temperature regions is convenient to research.

An air quality monitoring arrangement is associated with an enclosed cab of an agricultural tractor used for towing or carrying spraying implements for treating crop with substances which might be toxic or otherwise harmful to people. A signal from a contaminant sensor is sent to a control arrangement which compares the actual sensed contamination of the air within the cab over time with a value from a performance map representing the performance expected from normal performance of the air circulating system of the cab. When the sensed contamination is higher than that of the performance map the operator is warned of a malfunction. The blower of the air circulating system may have its speed increased so as to pressurize the cab so as to exclude the entry of contaminated air through seals and other small openings of the cab. The air filters used are coded and recognized by the control system which keeps track of the service time of the filters and warns an operator when the service time exceeds that of a stored time value related to the particular filter.

A method for modeling an environment with a risk of nuclear contamination comprising steps of: acquiring, using a detector (10) and through a 3-dimensional displacement of the detector in the environment, information related to the topography of the environment and radiological measurement data of the environment, and then via a computer processing unit (20), associating the radiological measurement data with location data in the environment, the location data having been deduced from path data of the detector, incrementially creating, using the information and via the computer processing unit: at least one matrix in which topographic data of the environment and the radiological data associated with the location data are compiled, and a 3-dimensional mapping representing the environment in which the topographic data and the radiological data are jointly represented.

A mechanism for inverting containers or other objects. The mechanism inverts the container or object a full 180 degrees while providing motion control without the use of hydraulic actuators; thereby eliminating the costs, maintenance, environmental issues, and contamination concerns associated with hydraulic systems. The primary application for the inverting mechanism is inverting containers for the purpose of emptying the contents. The mechanism may also be employed to rotate a variety of other objects in other applications.

The invention discloses a wearable glove device which comprises a casing, an air extraction device and a control switch, wherein two circular encapsulation ports are arranged in the top end of the casing, an anti-disconnection ring is arranged on each circular encapsulation port, the air extraction device is installed on the bottom of the casing, and the control switch is connected with casing through a control wire and placed on the ground. The wearable glove device can be worn in a germ-free box, thereby reducing the possibility of glove contamination. The aseptic operation effect is improved, the aseptic wearing process is simplified, and the operation efficiency is increased.

Disclosed is an integrated liquid injection evaporation container, including a container body provided therein with a space for storing a liquid; a seal gasket configured to seal the container body from an upper end portion is provided on an upper portion of the container body, where the seal gasket is an electric material; a press cap configured to press the seal gasket tight on the container body is further provided; a first injection hole configured to inject a fluid is provided on an upper end of the container body; a second injection hole corresponding to the first injection hole is provided on the press cap. Use of the first injection hole, the second injection hole, and the seal gasket achieves the objectives of convenient liquid injection without contamination, and simple mechanical liquid injection.

The present invention provides a sealing liquid which does not contain a nickel salt but is capable of achieving a sealing performance equivalent to that in cases where a sealing liquid containing a nickel salt is used, and which enables an anodic oxide coating film sealed therewith to exhibit excellent contamination resistance. The present invention provides a sealing liquid for anodic oxide coating films of aluminum alloys, which contains a metal salt, a pH buffering agent and a surfactant, and which is characterized in that the metal salt is at least one salt selected from among alkali metal salts and alkaline earth metal salts.

The invention discloses an improved structure of a hydraulic oil pipe of a transformer, which comprises a gas pipe body connected to an oil conservator, and a gas-permeable dust-absorbing layer, a metal gas-permeable adsorption layer, and a silica gel water-absorbing layer are arranged in the gas pipe body. The air-permeable adsorption layer and the silica gel water-absorbing layer are sequentially arranged along the axial direction of the trachea body towards the direction of the oil conservator, and the air-permeable dust-absorbing layer is formed by soaking and drying the air-permeable board in diglycolamine solution. The invention realizes the purpose of an oil conservator gas pipe that can reduce the pollution probability of transformer oil by dust, metal elements and sulfide in the air and improve the purification degree of the air entering the oil conservator.

The invention relates to a device and craft for using fluidized bed to burn kerogen. The raw oil and kerogen are transmitted into the boiler combustion device through the transmission system. The device includes fluidized bed boiler, vortex separator, and ash particle combustion system and ash dredge reclaiming device. In the boiler, the hot wind enters with small aperture speed and hot fluidized speed through the directional cap, the wind is divided into the first wind and the secondary wind; the wind quantity can be adjusted, maintains the stability of the bed and homogeneity of temperature, the temperature is maintained between 850deg.C-920deg.C. The smoke is separated through the separator, the raw particle returns into the furnace to be burned, the residue tail gas reclaims heat through several heat exchangers, and the ash dredge in the furnace is discharged out of the dredge colder with high wind quantity and pressure through the electric dust eliminator, which can be used as cement mixing material. The combustion intensity and efficiency are high, the contamination is little.

The invention relates to a contamination cleaning device, which comprises a motor, the contamination cleaning device and a control box, and is characterized in that the contamination cleaning device comprises a rotary cylinder, a magnet and a liquid storage cylinder, wherein the magnet is fixed in the rotary cylinder; and the inside of the liquid storage cylinder is filled with a cleaning and polishing liquid. Because of the adoption of the technical scheme, the contamination cleaning device has the advantages of simple structure, little liquid dosage, good cleaning effect, capability of full-automatic treatment, high efficiency, and no environment pollution.

The invention discloses a purification treatment device. The purification treatment device comprises a device body, a temperature and humidity automatic regulation system, an organic pollutant continuous monitoring system, an air exchange system, a photocatalysis purification system and a master control box. The device body is composed of a structural framework and a heat preservation heat insulation material, and the temperature and humidity automatic regulation system comprises an air heating device, an automatic humidifying device, and a temperature and humidity real-time monitoring and intelligent control device. The organic pollutant continuous monitoring system comprises a TVOC rapid monitoring device and a formaldehyde rapid monitoring device; the air exchange system can exchange air inside and outside the device in a timing manner, the photocatalysis purification system can use the photocatalysis effect for decomposing and removing hazardous gas. According to the device, releasing and rapid odor removal of hazardous gas in an object can be accelerated, the photocatalysis material can be used for carrying out permanent continuous purification on slowly-released pollutants, the damage of air pollution to persons is reduced, peculiar smell is removed, antibacterial sterilization is achieved, biologic contamination is prevented, and air quality can be comprehensively improved.

The invention provides a cleaning method for improving uniformity of a Schottky barrier layer. The method comprises the following steps: selecting processed silicon as substrate silicon, and preparing liquid 1 to clean the substrate silicon so as to remove metal ions and organic contaminations on the surface of the substrate silicon; preparing liquid 2 to clean the substrate silicon so as to remove a natural oxide layer and an oxide layer generated in the previous process; and preparing liquid 3 to carry out hydrophilic treatment on the surface of the substrate silicon, carrying out spinning drying processing on the processed substrate silicon, and then, combining the metal and the substrate silicon through an evaporation or sputtering mode to obtain the Schottky barrier layer. According to the cleaning method for improving the uniformity of the Schottky barrier layer, the surface of the substrate silicon is hydrophilic after being cleaned, so that impurities on the surface of the substrate silicon can be removed effectively, a cleaning effect is ensured, uniformity of the barrier is improved, tunneling current is reduced, leak current is reduced and quality of a Schottky barrier device is improved.

The invention discloses a portable breast milk analyzer. The analyzer includes a casing provided with a display; an infrared light source transmitter, a single-chip microcomputer circuit board whose circuit is an analog circuit and a signal acquisition board are arranged in the casing; the single-chip microcomputer circuit board is provided with a photosensitive device; the signal acquisition board is provided with a signal processor; and the casing is provided with a groove, the side wall of the groove is made of light transmission materials, and the groove is arranged between the infrared light source transmitter and the photosensitive device. The beneficial effects of the analyzer are that the analyzer is reasonable in design, simple in structure, small in size, convenient to carry andshort in detection period; the analyzer adopts an open liquid adding manner so that inputting through pipelines is not needed, and cleaning is also not needed; and therefore, cross contamination can be avoided, and measuring precision can be enhanced.

The invention provides a leak-proof portable soap box. The box comprises a box body with an opening formed in the upper end and a box cover matched with the opening formed in the upper end of the boxbody, water leaking holes are formed in the bottom of the box body, supporting frames are detachably and fixedly arranged on the opposite two sides of the box body, the box body is supported and fixedthrough the supporting frames, and the vertical distance between the bottom of the box body and the bottoms of the supporting frames is greater than or equal to the thickness of the box cover; the box cover is arranged on the box body in a covered mode or arranged at the bottom of the box body with the opening upward, the bottom of the box cover is of a sealed structure, and supporting frame embedding grooves are formed in the bottom of the box body. The leak-proof portable soap box aims at solving the problems of unreasonable design and desktop/tabletop contamination due to bottom water leakage and the like. The invention belongs to the field of daily use tools.

The invention discloses a double-port tube of a transfusion bag. The double-port tube comprises a tube body seat, a transfusion tube and a feeding tube, wherein the transfusion tube and the feeding tube are arranged side by side and vertically fixed on the same surface of the tube body seat; vertical through holes are formed in the transfusion tube and the feeding tube; one end, fixedly connected with the tube body seat, of each through hole is of flat rhombus, the other end of the through hole is round, and the middle of the through hole is in transition from roundness to flat rhombus; and the tube body seat is provided with two flat rhombic open holes communicated with the through holes in the transfusion tube and the feeding tube. According to the double-port tube of the transfusion bag, the transfusion tube and the feeding tube are separated, so that cross contamination when medicinal liquid is used is avoided; and one end of each through hole is of flat rhombus, so that the material is saved, and the production cost is reduced.