41results about How to "Improve the quality of environmental protection" patented technology

The invention discloses a coating wastewater treatment process which comprises the following steps: filtering through a crude fence and a fine fence, carrying out demulsification treatment on grease wastewater, dewatering sludge for recovery, carrying out surface phosphating on the workpiece, carrying out centralized treatment on electrophoresis wastewater, carrying out centralized treatment on the high-polymer resins, pigments, powder, surfactant and assistants in the coating wastewater, floating, carrying out aeration purification, mixing with low-concentration wastewater, carrying out batch treatment on the wastewater, inoculating into a biological oxidation pool, carrying out secondary treatment on the wastewater, trapping high-molecular organic substances by a membrane separation technique, adding sodium hypochlorite into ammonia nitrogen, recovering salts, filtering through drift sand, filtering the wastewater through activated carbon, and discharging the purified water. The coating wastewater treatment process is simple in technique and enhances the wastewater recovery and utilization ratio.

The invention provides a retraction device for a safety syringe, in particular a creative design that a syringe needle bed is stably positioned at an opening end of a barrel. A borrow locking device and a retraction embedded linkage device are arranged between needle beds mutually. Due to the creative and unique design, a pull rod head of a pull rod can be rapidly clamped to be positioned on a needle bed group by means of the borrow locking device and the retraction embedded linkage device so as to provide convenience for a user to perform the next retraction action. Meanwhile, the needle bed group can be stably assembled and positioned at the opening end of the barrel and hardly makes clamping and sealing functionally damaged due to external temperature change. For example, the clamping degree between the needle bed and the barrel is reduced due to steep temperature rise so as to cause the inner retraction or leakage of the needle bed in the injection process, or the needle bed and the barrel are excessively clamped due to steep temperature reduction, and the injection needle cannot retract after injection and the needle bed enters the barrel, and the like. Therefore, the retraction device for the safety syringe can improve the safety and environmental protection quality.

The invention discloses a retraction structure of a safety syringe, in particular to an innovative design which is used for safely retracting a syringe needle into a cylinder body. The retraction structure mainly comprises the cylinder body, an upper needle seat, a lower needle seat, a push rod, a rotation limit unit, an L-shaped locking unit and a quick guide braking unit; therefore, the retraction structure leads a rotating seat of the push rod to be rapidly aligned and meshed with a rotating groove relatively to the needle seats by the L-shaped locking unit and the quick guide braking unit, so that the user can conveniently circularly rotate the push rod and lead the needle seat to be aligned in the next step, and open retraction mode of the syringe needle can be available; furthermore, as the quick guide braking unit is closely meshed and contacted, the residual liquid medicine is greatly reduced, the safety and environmental protection quality of the retraction structure of the safety syringe can be improved, and the syringe needle is convenient for retraction use and has progressive practicability.

The invention discloses a planar perovskite solar cell based on graphene ZnO cathode and a preparation method thereof, which are used for solving the problems that an existing perovskite solar cell is high in transparent electrode cost, unmatched in energy level and poor in interface characteristic. The planar perovskite solar cell comprises a substrate (1), a cathode (2), an electron transfer layer (3), an optical active layer (4), a cavity transmission layer (5) and an anode (6) from bottom to top, wherein the cathode (2) is made of graphene and used for collecting electrons; the electron transfer layer is made of ZnO and used for modifying an interface, blocking a cavity and transferring electrons. The graphene is adopted as the cathode, the ZnO electron transfer layer is prepared by spinning a precursor solution, so that the work function of the graphene function is reduced, the energy level matching between the graphene and the CH3NH3PbI3 is realized, the interface characteristic is improved, and the performances of the planar perovskite solar cell are effectively improved.

The invention relates to a gas purification device of a household garbage flashing mineralization treatment device. The treatment device comprises a box body and a chimney, the box body is in a sealed rectangular box body structure formed by a top plate, side stand plates and a bottom plate, the top plate is in an upward arch shape, a dome arch smoke seat is formed at the center of the top plate, and a gas mixing pipe of the chimney is fixedly arranged on the dome arch smoke seat. The treatment device is characterized in that a stop valve is installed on the gas mixing pipe, the gas purification device is fixedly mounted on the top plate of the side of the dome arch smoke seat, and a main gas inlet pipe and a main gas outlet pipe of the gas purification device are respectively communicated with the gas mixing pipe and fixedly mounted on gas mixing pipes above and below the stop valve of the gas mixing pipe. According to the gas purification device of the household garbage flashing mineralization treatment device, catalyst filtration, water filtration, cleaning agent filtration, active carbon filtration and automatic reminding of water replenishing and discharging can be performed while reinforced circulation can be performed on smoke dust by designed external power, gas purification level is extremely increased, and environmental protection qualities of discharged gas are guaranteed.

The invention discloses a regenerative braking energy feedback system. The system comprises diode rectifiers, energy feedback modules, detection loop devices and control circuit devices, a group of energy feedback modules are connected with a group of diode rectifiers in anti-parallel, the energy feedback modules are connected with the detection loop devices, and the detection loop devices are also connected with the control circuit devices. The system can leave out an additional boost transformer for controlling braking energy, effectively reduce cost, reduce energy waste, and improve environmental protection quality.

The invention discloses a detecting method for residual glyoxal content in ethoxyl/hydroxypropyl methyl cellulose. The method comprises the following steps: a, preparing phenol reagent solution; b, preparing glyoxal standard solution for future use; c, weighing a sample, adding tetrahydrofuran, and stirring in a low speed; d, filtering through a filter membrane, for future use; e, taking and transferring filtrate in the step d to a reaction flask, adding deionized water and phenol reagent solution, uniformly mixing, and testing absorbancy of the above testing solution through a spectrophotometer, wherein a wave length is 405 nm; f, drawing a standard curve; and g, calculating the residual glyoxal content in the ethoxyl/hydroxypropyl methyl cellulose through a classical formula. The methodcan be used for effectively and rapidly detecting the residual glyoxal content in the ethoxyl/hydroxypropyl methyl cellulose, effectively detecting aldehydes materials in a product harmful to a humanbody, and improving environmental production quality of the product.

The invention discloses a regeneration and utilization system for diamond wire cooling liquid. The regeneration and utilization system comprises a first liquid storage tank used for storing blended cooling liquid and a slicing machine slurry cylinder communicating with the first liquid storage tank; a waste liquid tank connected with a slicer slurry cylinder and used for storing cut waste liquid, a first ion detector arranged in the waste liquid tank and used for detecting the content of metal ions, and a first liquid supplementing tank electrically connected with the first ion detector and connected with the waste liquid tank and used for conveying an ion scavenger to the waste liquid tank. The waste liquid tank is connected with a third liquid storage tank, the third liquid storage tank is connected with a second liquid supplementing tank for storing cooling liquid and used for regenerating the cooling liquid, and the third liquid storage tank is connected with the first liquid storage tank and used for conveying the regenerated cooling liquid to the first liquid storage tank. According to the invention, the treatment and cyclic utilization of the cooling liquid are realized, and the discharge amount of waste liquid is low; water resources are saved in the whole process, the environmental protection quality is improved, and a full-automatic regeneration system is achieved.

The invention provides a production technology of an environment-friendly anti-counterfeiting scintillating blue pearlescent ink. The technology includes the steps of: 1) stirring a scintillating bluepearlescent pigment with ink 30min before printing; 2) adding an environment-friendly mixed solvent, performing stirring for 15min, then detecting the ink viscosity and controlling the viscosity range at 28-32s of No.4 cup, at the same time adding an anti-settling agent with a mass ratio of no more than 3%, and performing stirring; 3) in the production process, detecting the ink viscosity every other 15-20min, and controlling the viscosity in the range of 28-32s of No.4 cup; 4) during printing preparation, using 80-line anilox roller and installing a new scraper; 5) before formal printing andeach halt printing, cleaning a rubber blanket with the environment-friendly mixed solvent; and 6) during production, detecting the ink viscosity every other 15-20min, and controlling the viscosity inthe range of 30-32s of No.4 cup. After printing by the technology, a packaging product has significant scintillating blue pearlescent effect, the ink has good stability on machine, the technology canadapt high speed machine stable production, also can combine with commonly used solvent medium easily, is convenient to operate, and does not bring pollution.

The invention relates to an automatic sole cleaner, belonging to the field of household appliances. Brush supports (4) are fixed below a brush board (3), all the brush supports (4) are arranged at intervals and are fixed on brackets (5) at the two ends of the brush supports (4), the interior of a base (1) is provided with an electromagnet (6), a telescopic shaft of the electromagnet (6) is connected with the bracket (5), the parts on the inner wall of the base (1) corresponding to the brush supports (4) are respectively provided with a slide supporting mechanism (7), a panel (2) is arranged above the base (1), a touch switch (12) is arranged below the panel (2), the other end of the touch switch (12) is connected with the base (1), and the touch switch (12) is provided with leads connected with the electromagnet (6) by a power supply (13). The automatic sole cleaner has rapid cleaning speed, stable action, less noise, reliable use, long service life, low manufacturing cost, small volume, convenient usage, fine cleaning effect of soles and is suitable for households as well as public places like restaurants.

The invention relates to a preparation method of a modified comet fiber filtering material. According to the preparation method, polyester fiber raw material is spun into yarns, the polyester fiber yarns are bundled, the polyester fiber yarn bundles are subjected to injection molding and ball pressing and then cut off to obtain the modified comet fiber filtering material. The preparation method further comprises the following steps of: 1, stirring the mechanically processed modified comet fiber filtering material in a rinsing tank, then fishing out and draining water for later use; 2, uniformly stirring a chemical solution in a container and then conveying the prepared chemical solution into an autoclave, wherein the chemical solution comprises the following components in percentage by volume: 2vol% of viscose oil, 1.5vol% of silica gel oil and the balance of water; 3, putting the modified comet fiber filtering material in the autoclave, turning on a heating power supply for increasing temperature, cutting off the power supply when the temperature rises to 110 DEG C, keeping the pressure of 0.11-0.15MPa for 2-3 minutes, then adding cooling water to the autoclave to reduce the temperature to 50 DEG C, turning on an outlet valve so that the fiber filtering material subjected to modification chemical treatment and the chemical solution flow into another container at the same time; 4, fishing out the fiber filtering material subjected to modification chemical treatment, drying in a spin dryer, taking out of the spin dryer and air-drying to obtain the finished product.

The invention provides an internet purifier based guest room environment protection monitoring network and an environment protection integration method, and solves the problem about acquisition of environment protection attributes of guest behavior habits as well as evaluation. The system comprises a server and at least one guest room air purification system. Each guest room air purification system comprises a guest room controller, an air purifier and a work monitor; the air purification system monitors working time of the air purifier, generates environment protection data and sends the same to the server; the server receives the environment protection data and makes statistics on the environment protection data to generate evaluation data. The environment protection integration method includes the following steps: recording identification information and check-in person identity information of the guest room air purification systems; monitoring the working status of the air purifiers, and recording working time of the air purifiers; making statistics on the working time of the air purifiers and generating evaluation data; subjecting the evaluation data and person identity information to associative storage.

The invention provides an anti-settling water-based quick-drying production process of a pearlescent printing ink. The production process comprises the following steps: 1) one to two days before printing, soaking a pearlescent pigment powder with a particle diameter of 5-25 [mu]m into a mixed solvent to make the pearlescent pigment powder moistened as a paste; 2), adding a thickener, and performing soaking for 3-4 hours to make the oil absorption of the pearlescent pigment reach saturation; 3), after the soaking, performing stirring dispersion at a speed of 150r/min, and performing full soaking; 4), before production use, pouring a high-concentration bright silver oil into the well soaked pearlescent pigment container while stirring, and adding a mixed solvent in an appropriate amount; 5),adding an anti-settling agent of 1%-5%, and detecting the viscosity of the printing ink after stirring for 15 minutes; and 6) in the production process, detecting the viscosity of the ink once every15-20 minutes to ensure that the viscosity is controlled in the range of 30-35 s of a No. 4 cup. According to the printing process, after printing, packaged products have a significant pearlescent effect, and the ink has a good stability on machine, not only can adapt to high-speed machine stable production, but also is easy to combine with a common solvent medium; and the operation is easy, and no pollution is brought.

The invention discloses a snow boot processing vamp cleaning device which comprises a device box. Supporting columns are fixedly connected to the four corners of the top of the device box, a mounting plate is fixedly connected to the tops of the supporting columns, and a driving motor is fixedly connected to the front side of the top of the mounting plate through a support. And an output shaft of the driving motor penetrates through the mounting plate and is fixedly connected with a first gear. The supporting column is used for supporting and fixing the mounting plate so that a machine at the top of the mounting plate can stably operate, the situation that the machine at the top of the mounting plate shakes during operation and influences normal operation of the device is avoided, and the driving motor, the first gear, a rotating column and a second gear are used for driving a cleaning brush plate to rotate; and the vamps can be brushed through the cleaning brush plate so that impurities and dust on the vamps can be cleaned, and the situation that the follow-up bonding quality of the vamps is affected by the impurities and dust attached to the vamps is avoided.