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57results about How to "Avoid environmental impact" patented technology

Digital display type multifunctional measuring ruler for shield TBM tunnel

The invention relates to a digital display type multifunctional measuring ruler for a shield TBM tunnel. The measuring ruler comprises a measuring ruler body, a digital display device, an upper shiftclaw (6) and a lower shift claw (1), wherein the measuring ruler body comprises a measuring main ruler (11) and a measuring base (12); the digital display device (7) comprises a result digital displayscreen (2), a pulley (3), a switch checker (4), a zero setting button (5), a fixing bolt (8), a shield tail gap measurement mode button (9) and a duct piece dislocation measurement mode button (10);the digital display device (7) sleeves the measuring main ruler (11), and the digital display device (7) and the measuring main ruler (11) can move relatively. The upper shift claw (6) and the lower shift claw (1) are fixed on the digital display device (7); and the lower end surfaces of the upper shift claw (6) and the lower shift claw (1) are flush with the lower end surfaces of the digital display device (7) and the measuring base (12). According to the digital display type multifunctional measuring ruler, a shield tail gap and duct piece dislocation can be more conveniently and accuratelymeasured in a tunnel construction environment; the operation is simple; the numerical value is accurate; and a result is convenient to read.
Owner:CHINA RAILWAY TUNNEL GROUP CO LTD +3

Method for preparing phosphoric ore slurry desulfurizer by ammonium fluoride wastewater

Large volume of flue gas containing sulfur dioxide with low concentration is generated in an industrial process, phosphoric ore slurry desulfurization has obvious technical advantages in phosphorus chemical production enterprises, so the popularization and application are achieved. The absorption efficiency of phosphoric ore slurry to sulfur dioxide is not stable due to the influence of fluctuation of flue gas volume and change of the sulfur dioxide concentration in the flue gas. The method provided by the invention adopts ammonium fluoride wastewater and phosphate rock powder discharged in the phosphorus chemical enterprises to prepare a desulfurization absorber, so that the sulfur dioxide with low concentration in the flue gas can be absorbed. The method comprises the steps of uniformly mixing the pretreated ammonium fluoride wastewater and fine-grained phosphoric ore to obtain the desulfurization absorber with 15 to 50 percent of solid content, and the pH value is 8.0 to 9.0, the liquid-gas ratio is controlled to be 4-12 L / m<3> in an absorption process; when the pH value of circulating slurry is less than 4.0, discarding 50 percent of absorption slurry, and adding the same amount of newly prepared phosphoric ore slurry absorption liquid into a circulating tank. The prepared absorbent has stable desulphurization efficiency, and the obvious influences of the sulfur dioxide concentration and of the fluctuation of the flus gas volume to the absorption efficiency of the sulfur dioxide do not exist. According to the method, waste control by waste is realized, and the method has the characteristics of being simple in process facility, low in cost of operation, cheap and easily obtained materials.
Owner:KUNMING ECON TECH CO LTD

Low-temperature disinfectant and preparation method thereof

PendingCN113854309AMeet the needs of disinfection and sterilizationImprove stabilityBiocideFungicidesMeth-Disinfectant
The invention relates to the technical field of disinfectants, in particular to a low-temperature disinfectant and a preparation method thereof. The low-temperature disinfectant is prepared from components in percentage by mass as follows: 0.1%-1% of polyhexamethylene biguanide, 0.05%-0.1% of composite quaternary ammonium salt, 25%-35% of a synergist, 15%-25% of an anti-freezing agent, 0.1%-1.5% of a pH regulator and the balance of deionized water. The preparation method comprises the following steps: adding the deionized water, the polyhexamethylene biguanide and the synergist into a beaker, uniformly stirring and mixing the mixture, respectively adding the compound quaternary ammonium salt and the anti-freezing agent, stirring and dissolving the components, adding the pH regulator, and regulating the pH value of the mixed solution to 7.5-8.0 to prepare the low-temperature disinfectant. The low-temperature disinfectant is suitable for being used in a low-temperature environment at the lowest temperature of -30 DEG C, wherein the sterilization rate can reach 99.99% after acting on the surface of an object for 10 minutes, and a layer of sterilization protective film is formed on the surface of the object after 45 minutes, and the sterilization time is as long as 15 days. By means of the product, the labor cost and the sterilizing agent cost are saved, and the environmental influence caused by excessive spraying of the disinfectant is completely avoided.
Owner:重明鸟新材料盐城有限公司

Garbage collection method, garbage collection system and arm-hook garbage can

PendingCN106742977AAvoid environmental impactReasonable mode of operationRefuse vehiclesTruckExperience base
The invention relates to a garbage collection method, a garbage collection system and an arm-hook garbage can. The garbage collection method comprises the following steps: a preset warning message for prompting of arm-hook garbage can cleaning is received, and a location of the arm-hook garbage can is determined according to the preset warning message; and the arm-hook garbage truck carries out garbage collection according to the location of the arm-hook garbage can. The arm-hook garbage truck can can carry out the garbage collection according to the location of the arm-hook garbage can determined by the warning message for the prompting of the arm-hook garbage can cleaning. Compared with the experience-based cleaning mode of the existing arm-hook garbage truck, when the cleaning requirement of the arm-hook garbage can is definite, location information of the corresponding arm-hook garbage can can be provided to the arm-hook garbage truck, so that the arm-hook garbage truck can accurately find the arm-hook garbage can to be cleaned and timely clean the arm-hook garbage can, environmental influence due to the fact that the arm-hook garbage can is not cleaned timely can be avoided to the greatest extent, the arm-hook garbage truck has a more reasonable operation mode, and the garbage collection cost is reduced.
Owner:XCMG CONSTR MACHINERY +1

Residual liquid emptier

ActiveCN103016951ASolve the problem of direct discharge to the outsideGuaranteed full gasificationContainer discharging methodsContainer filling under pressureProcess engineeringAir blower
The invention provides a residual liquid emptier. The residual liquid emptier comprises an air blower, a residual liquid vaporizing chamber, a heater, a residual liquid collector, an outlet temperature measuring device, an emptying tube, an inlet temperature measuring device and a residual liquid inlet tube, wherein the residual liquid collector is arranged on the upper part of the residual liquid vaporizing chamber; the air blower is connected to the bottom of the residual liquid vaporizing chamber; the heater is arranged in the residual liquid vaporizing chamber and is connected with the residual liquid collector; the residual liquid inlet tube is connected with the residual liquid collector; the emptying tube is connected with the residual liquid vaporizing chamber; the inlet temperature measuring device is arranged at the connected part of the residual liquid inlet tube and the residual liquid collector; and the outlet temperature measuring device is arranged at the connected part of the emptying tube and the residual liquid vaporizing chamber. The residual liquid emptier can be used for vaporizing liquid nitrogen within a short time for effectively avoiding influence on environmental and personal injury or device damage caused by direct emission of the liquid nitrogen, and has the beneficial effects of high vaporizing efficiency, energy conservation and an extensive applicable range.
Owner:SHANGHAI YUDA IND

Ardealite harmlessly treated as ecological restoration material and method

The invention discloses an ecological restoration material prepared from phosphogypsum through innocent treatment and a method. The ecological restoration material is prepared from the following raw materials in parts by weight: 5-10 parts of lime milk, 0.01-0.05 part of a water reducing agent and 0.01-0.05 part of a dispersing agent. The method is realized through chemical reaction, even if soluble phosphorus and fluorine in the phosphogypsum form insoluble compounds to passivate the phosphogypsum, the phosphogypsum can be used for ecological restoration if miscellaneous fill is needed for leveling terraces of concave terrains in building construction and earth surface backfill lamps are needed for open-cast mining, so that the phosphogypsum is harmless to the environment and has no pollution to the environment. The added water reducer can enhance the fluidity and play a role in lubrication, the dispersant can enhance the capacity of the particles and reduce the time and energy required for completing the dispersion process, and after the phosphogypsum is modified, the phosphogypsum is harmless and can be used as a filling material for ecological restoration; the problems of environmental influence caused by no repair after mining of various mines and natural disasters of landslide are solved.
Owner:YUNNAN COPPER IND SUNWARD CHEM

A heat dissipation device for a temperature control system of a PCR detector

The invention relates to a heat dissipation device for a temperature control system of a PCR detector, which comprises a temperature control system, a heat conduction mechanism and a heat dissipationchassis. Temperature control system refers to the system and structure of temperature control required by PCR detector when it is running. The heat conduction mechanism comprises a heat conduction metal layer, a heat conduction pipe and a heat conduction liquid; The heat-conducting metal layer is closely connected with the heating and refrigerating devices in the temperature control system which need to dissipate heat through the heat-conducting medium. The heat-conducting metal layer contains a cavity filled with a heat-conducting liquid, and the cavity is connected with a heat-conducting pipe, the cavity of the heat-conducting metal layer is communicated with the cavity of the heat-conducting pipe, and the heat of the heating refrigeration device in the temperature control system needingheat dissipation is transferred to the heat-conducting liquid in the cavity of the heat-conducting metal layer through the heat-conducting metal layer. The invention is particularly suitable for miniaturization and portable PCR detector, so that the heat dissipation part occupies much less instrument space, and the heat dissipation efficiency can be improved, and the cost can be reduced at the same time.
Owner:HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI +1

Self-adhesive mica tape winding wire

The invention discloses a self-adhesive mica tape winding wire, which belongs to the technical field of motor accessories. The winding wire comprises a conductor and an insulator combined outside the conductor. The insulator comprises a first mica tape wound outside the conductor; a film and the first mica tape which are wound outside the conductor in turn; a packaging layer combined outside the conductor by sintering or hot sealing and the first mica tape wound outside the packaging layer; a second mica tape and the first mica tape which are wound outside the conductor in turn; the second mica tape, a third mica tape and the first mica tape which are wound outside the conductor in turn; the film, the second mica tape and the first mica tape which are wound outside the conductor in turn; or the packaging layer combined outside the conductor by sintering or hot sealing and the second mica tape and the first mica tape which are wound outside the packaging layer in turn. The winding wire is characterized in that the outside lateral surface of the first mica tape is combined with a self-adhesive layer. Most ideally, the self-adhesive property is favorable for the shaping of a coil; and environmental influences are avoided and process steps in a manufacturing process are reduced.
Owner:江苏豪威富电气股份有限公司

A kind of method that ammonium fluoride waste water prepares phosphate pulp desulfurizer

Large volume of flue gas containing sulfur dioxide with low concentration is generated in an industrial process, phosphoric ore slurry desulfurization has obvious technical advantages in phosphorus chemical production enterprises, so the popularization and application are achieved. The absorption efficiency of phosphoric ore slurry to sulfur dioxide is not stable due to the influence of fluctuation of flue gas volume and change of the sulfur dioxide concentration in the flue gas. The method provided by the invention adopts ammonium fluoride wastewater and phosphate rock powder discharged in the phosphorus chemical enterprises to prepare a desulfurization absorber, so that the sulfur dioxide with low concentration in the flue gas can be absorbed. The method comprises the steps of uniformly mixing the pretreated ammonium fluoride wastewater and fine-grained phosphoric ore to obtain the desulfurization absorber with 15 to 50 percent of solid content, and the pH value is 8.0 to 9.0, the liquid-gas ratio is controlled to be 4-12 L / m<3> in an absorption process; when the pH value of circulating slurry is less than 4.0, discarding 50 percent of absorption slurry, and adding the same amount of newly prepared phosphoric ore slurry absorption liquid into a circulating tank. The prepared absorbent has stable desulphurization efficiency, and the obvious influences of the sulfur dioxide concentration and of the fluctuation of the flus gas volume to the absorption efficiency of the sulfur dioxide do not exist. According to the method, waste control by waste is realized, and the method has the characteristics of being simple in process facility, low in cost of operation, cheap and easily obtained materials.
Owner:KUNMING ECON TECH CO LTD

Aluminized film with wire drawing effects and film-coated colored steel plate

The invention provides an aluminized film with wire drawing effects and a film-coated colored steel plate. The aluminized film comprises a PET wire drawing film, the upper surface of the PET wire drawing film is provided with a scratch-resistant coating, the lower surface of the PET wire drawing film is provided with a vacuum aluminized layer and the surface of the vacuum aluminized layer is provided with an adhesion-enhanced resin coating. The aluminized film has metal wire drawing effects, production processes are simplified, economy and practicability are obtained and environmental influence caused by a PVC film is avoided. The film-coated colored steel plate comprises a cold-roll steel sheet and the aluminized film which has wire drawing effects and is bonded to the cold-roll steel sheet through a composite adhesive layer. The composite adhesive layer provides good high temperature resistance and water boiling resistance to the film-coated colored steel plate and satisfies processing and use requirements of the film-coated colored steel plate. Through change of the anti-rust paint color of the surface of the cold-roll steel sheet and combination with the tungsten steel color ofthe aluminized film with wire drawing effects, the appearance of different colors is realized through color superposition.
Owner:HUBEI INST OF AEROSPACE CHEMOTECHNOLOGY
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