17results about How to "Reduce environmental pollution" patented technology

The utility model discloses a kind of acid-base unloading pump buffer tank and flushing water device, it is related to chemical equipment technical field;And the utility model includes unloading pump flushing inlet pipe, unloading acid-base pump, unloading pump flushing outlet pipe, acid-base pump machine seal flushing water inlet pipe, pump machine seal flushing water outlet pipe, buffer tank and control system, the unloading pump flushing inlet pipe is connected with unloading acid-base pump outlet pipe, first flushing inlet electric valve is equipped on the unloading pump flushing inlet pipe, the acid-base pump machine seal flushing water inlet pipe includes machine seal flushing inlet electric valve, the flushing water system of the utility model can be after unloading acid-base operation is completed remote control to unloading acid-base pump, conveying pipeline and buffer tank are flushed, without field operation, greatly improve cleaning efficiency, can thoroughly remove the acid-base liquid remaining in unloading pump, reduce equipment corrosion and environmental pollution, prolong the service life of equipment, reduce equipment maintenance cost.

The utility model relates to the technical field of filtering and cleaning of chemical equipment, in particular to an ammonia water pump inlet filter cleaning device which comprises an ammonia water pump body, an inlet pipe is installed at the water inlet end of the ammonia water pump body, the water outlet end of the ammonia water pump body is communicated with an outlet pipe, and a filter is installed on the inlet pipe. The inlet pipe is communicated with a desalted water pipe, the outlet pipe is communicated with a return pipe, a circulating pipe is communicated between the desalted water pipe and the return pipe, a circulating pump is arranged in the middle of the circulating pipe, a liquid storage tank is arranged on one side of the circulating pump, and the liquid storage tank is communicated with the circulating pipe through a liquid conveying pipe. Desalted water circulating flushing is adopted to replace traditional direct liquid discharging, residual ammonia water in the filter and the ammonia water pump body is removed, the poisoning risk caused by volatilization of high-concentration ammonia water is reduced, the situation that GDS alarm is triggered and desalted water circulating flow washes impurities and crystals attached to the surface of a filter screen of the filter is reduced, the service life of the filter is prolonged, and the service life of the filter is prolonged. And the use and production cost is reduced.

The invention relates to a fertilizer synergist and a preparation method thereof, in particular to a fertilizer synergist which is based on natural components such as modified aspartic acid, alginate oligosaccharide, mannan oligosaccharide and magnetic polysaccharide and takes a fertilizer as a carrier. According to the fertilizer synergist, through the innovative modification of the modified aspartic acid and the synergistic effect of the natural polysaccharide, the utilization efficiency and the slow release property of a fertilizer and the nutrient absorption capacity of crops are remarkably improved. Compared with the traditional fertilizer synergist, the synergist disclosed by the invention can prolong the release time of nutrients, reduce the loss of the fertilizer and improve the yield of crops, has better environmental friendliness, and reduces possible pollution to soil and water in the fertilizer application process. The fertilizer synergist disclosed by the invention has remarkable advantages in the aspects of improving the fertilizer utilization rate, crop growth and soil environmental protection. The fertilizer synergist provides an efficient, environment-friendly and sustainable technical solution for agricultural production.

This application discloses a slurry homogenizing device and a battery production system. The slurry homogenizing device includes a homogenizer, a piping assembly, a discharge valve, and receiving components. The homogenizer includes an inlet and an outlet. The piping assembly connects the inlet and outlet and supplies slurry flow. The discharge valve is connected in series with the piping assembly and is used to discharge the slurry. The receiving components are spaced below the discharge valve and are used to collect the slurry dripping from the discharge valve. In use, the slurry homogenizing device of this application discharges the slurry through the discharge valve for slurry testing. After the discharge is completed, the receiving components are positioned below the discharge valve to collect the slurry dripping from the valve, thereby reducing the possibility of slurry dripping onto the ground and causing environmental pollution.

This application relates to a battery cell baking apparatus, a control system thereof, and a battery cell baking process. A vacuum breaking pipeline is divided into a first branch and a second branch that are independent of each other. Before a battery cell in a reaction chamber is baked, gas is heated and pressure-regulated first. Before the gas reach a standard condition, the first branch is configured to discharge the gas. Once the gas meets the standard, the second branch is quickly switched on to introduce the gas into the reaction chamber. This avoids a problem of low moisture removal efficiency of the battery cell caused by battery cell aspiration in a gas environment of ambient temperature and pressure, thereby accelerating moisture removal efficiency.

A method for preparing immobilized cells for producing mannose, and a method using same for producing mannose, comprising: fermenting to separately obtain fermentation broths of Escherichia coli or Bacillus subtilis expressing α-glucan phosphorylase, phosphoglucomutase, glucose phosphoisomerase, mannose-6-phosphate isomerase and mannose-6-phosphate phosphatase, and mixing the fermentation broths to obtain a mixed fermentation broth.

The invention relates to the technical field of outer packing carton gloss oil glazing, and discloses an outer packing carton gloss oil glazing process which comprises the following steps: removing dust, paper scraps and other impurities on the surface of an outer packing carton to be glazed through a high-voltage electrostatic dust collection device, controlling the electrostatic voltage to be 30-50kV, and ensuring that the surface of the carton is clean and free of foreign matters; through the synergistic effect of paper box pretreatment, precise coating and gradient curing, the problems of uneven coating thickness and multiple surface flaws of a traditional process are solved, the surface of the coating is flat and smooth, the glossiness can be regulated and controlled according to needs, the adhesive force, the wear resistance and the water resistance of the coating are remarkably improved, and the coating quality is improved. The appearance quality and the protection performance of the carton are greatly improved; and the automatic continuous production process is adopted, the gradient curing technology is combined, the gloss oil drying and curing time is greatly shortened, compared with a traditional technology, the production efficiency is improved by 30%-50%, and meanwhile the manual operation intensity is reduced.

This invention discloses a device for detecting down composition and residual fat content, comprising a controller, a composition detection mechanism, and a sample dispersion mechanism, a microwave extraction mechanism, and a drying and weighing mechanism connected in sequence. The sample dispersion mechanism includes a sample chamber and a dispersion cavity. A miniature electromagnetic vibrator is installed at the bottom of the sample chamber, with its top surface inclined to the dispersion cavity. The dispersion cavity is a transparent cavity with an air outlet, an air inlet, and a telescopic rod A. A mesh sieve plate is fixed to the top of the telescopic rod A, and a sample recovery port is located above the sieve plate. The composition detection mechanism is connected to the dispersion cavity. The controller connects to each component. This invention achieves integrated automatic detection of down composition and residual fat content by integrating composition detection, microwave extraction, and drying and weighing. It replaces Soxhlet extraction with microwave extraction, significantly shortening the residual fat detection time and reducing the amount of organic solvent used. Through automatic dispersion, sieving, and optical analysis, it reduces manual intervention and improves the efficiency, objectivity, and repeatability of composition analysis results.

The invention belongs to the technical field of dental prosthesis manufacturing, and particularly relates to a denture processing-based rapid glazing device which comprises a first rack and a second rack, two supporting plates are fixedly arranged at the upper end of the second rack, two conveying belts are arranged between the two supporting plates in a transmission manner, and a plurality of supporting plates can be sequentially placed on the two conveying belts at intervals; a distributor is arranged above the position between the two supporting plates in a sliding mode, a plurality of spraying pipes are arranged at the bottom of the distributor, an elastic net pipe is arranged outside each spraying pipe, each elastic net pipe is of a hollow structure, the bottom of each elastic net pipe is open, and a coating film is arranged in each elastic net pipe; when the false tooth is glazed, the material spraying pipe sprays the glaze on the surface of the false tooth after atomizing the glaze and sprays part of the glaze on the coating film, and when the coating film is glazed, the coating film moves up and down and uniformly coats the glaze on the surface of the false tooth. The problems that according to existing glazing equipment, the uniformity of a false tooth glaze layer is poor, the conveying stability of a supporting plate is poor, and glaze residues are difficult to remove are solved.

This utility model relates to the technical field of tobacco leaf screening equipment, specifically to a mobile dust-proof tobacco leaf screening device. The device includes: a screening housing with at least two detachable screening discs arranged from top to bottom according to their aperture size; a transparent cover fitted to the top of the screening housing for adding tobacco leaf samples to the screening discs and preventing dust from escaping; a dustproof door installed at the side opening of the screening housing to seal the screening space and facilitate the removal of the screening discs; a collection box located at the bottom of the screening housing for collecting debris, dust, and sand falling during the screening process; and a brake wheel installed at the bottom of the collection box with a locking function for fixing the device's position during movement and operation. This utility model facilitates rapid on-site deployment and transportation, meets the flexible screening needs of small batches of samples, and improves the convenience and environmental friendliness of tobacco leaf quality inspection.

The application provides a doped and repaired regenerated lithium nickel cobalt manganese oxide ternary material, a preparation method and application thereof, and belongs to the field of resource recycling science and engineering. The preparation method comprises the following steps: sequentially performing alkali washing and impurity removal and low-temperature pre-burning on waste lithium nickel cobalt manganese oxide material to obtain an activated material; mixing the activated material with a first lithium source, and performing one-time lithium supplement sintering to obtain one-time lithium supplement regenerated material; mixing the one-time lithium supplement regenerated material with a second lithium source and a lanthanide compound, and performing secondary sintering to obtain the doped and repaired regenerated lithium nickel cobalt manganese oxide ternary material. The application adopts a synergistic repair process of "alkali washing and impurity removal-low-temperature pre-burning-step-by-step lithium supplement-lanthanide element doping", does not need to use corrosive reagents and complex separation steps, and has the advantages of simple process, low energy consumption and green environmental protection. The obtained regenerated material restores the layered crystal structure, and when used as a lithium ion battery positive electrode material, has excellent cycle stability and rate performance.

The invention provides a straw three-element separation method based on enzyme pretreatment and a DES solvent, belongs to the field of biomass resource utilization, and can solve the problems of high energy consumption, serious environmental pollution and low separation efficiency in the existing straw three-element separation method. Comprising the following steps: crushing straws, carrying out enzymolysis pretreatment by using cellulase and hemicellulase, mixing a solid obtained after solid-liquid separation with a DES solvent, and reacting for 2-4 hours under the conditions of 120-150 DEG C and 0.5-1.0 MPa to dissolve out lignin; centrifugally separating to obtain a DES solvent solution containing lignin and a solid precipitate containing cellulose and hemicellulose; filtering the DES solvent solution containing lignin through a ceramic membrane, and drying to obtain a lignin product; treating the solid precipitate with a hydrogen peroxide solution, carrying out solid-liquid separation, washing and drying to obtain a cellulose product; and combining the separation liquid and the washing liquid, concentrating, adding ethanol for precipitation, and drying to obtain a hemicellulose product. According to the invention, step-by-step efficient separation of three elements is realized, and the separation efficiency and the product purity are improved.

Provided are a preparation method for an immobilized cell for tagatose production and a method for producing tagatose by using the immobilized cell. The preparation method for the immobilized cell comprises: mixing a fermentation broth of Escherichia coli or Bacillus subtilis that expresses α-glucan phosphorylase, phosphoglucomutase, glucose phosphate isomerase, tagatose 6-phosphate epimerase, and tagatose 6-phosphate phosphatase to obtain a fermentation mixture, adding inorganic soil and then performing uniform stirring, then adding a flocculant to flocculate bacteria, subsequently adding a cross-linking agent to cross-link, performing vacuum filtration to obtain a filter cake, using a rotary granulator to extrude the filter cake to granulate into a long strip, then cutting by means of a spherical shot blasting machine into particles having equal lengths, and performing boiling drying to obtain the immobilized cell for tagatose production. According to the present invention, separation and purification steps of an enzyme required in tagatose production are simplified, the recycling rate of the enzyme is improved, and the recycling of the enzyme is achieved.

The present invention relates to a high solid type ultraviolet-curable coating composition and a molded product comprising a cured coating layer formed using the same. The present invention provides an eco-friendly UV-curable coating composition having less generation of volatile organic compounds.

The utility model discloses an intelligent tester for accurate judgment dental pulp health condition belongs to oral cavity instrument technical field, including detachable work head, insulating protective sleeve, conductor, circuit system, holding handle, charging base, mouth corner hook and test line, detachable work head is cylindrical curved metal device, and the lower end outer diameter is matched with the inner diameter of insulating protective sleeve. Insulating protective sleeve surrounds detachable work head, makes detachable work head partial insulation and lower end contact conductor. The conductor upper end is contacted with the lower end of detachable work head, and is connected with device circuit system below, and temperature and current are controlled by circuit system. The test line is connected with circuit system, and the outer end is connected with mouth corner hook, and is contacted with patient's oral cavity. Circuit system collection control system, power supply system, functional circuit are integrated, and functional circuit collection semiconductor refrigeration, electric heating wire heating, electric pulse three circuit module series and parallel connection, and control system is composed of control panel, control switch, master switch. Holding handle lower end connects charging interface, and is connected with the electric plug -in sheet on charging base.

The utility model relates to material conveying technical field, it is a kind of conveying device for reducing PTA consumption, including bunker, first horizontal pipe chain conveyor, second horizontal pipe chain conveyor, vertical pipe chain conveyor and material conveying pipeline.The utility model is reasonable and compact in structure, when vertical pipe chain conveyor breaks down and stops, dismounts and unloads baffle, shakes the annular chain of vertical pipe chain conveyor, drives the scraper on annular chain to sway, and PTA material on scraper shakes and starts to fall, flows into the upper end of material conveying pipeline from unloading port, so it can concentrate the PTA material in material conveying pipeline and collect, when vertical pipe chain conveyor fault is removed, the PTA material collected can be added to first horizontal pipe chain conveyor again through buffer feed inlet, the PTA material cleaned out after pipe chain conveyor is blocked is concentrated and collected and utilized again in the application, reduces PTA energy consumption, environmental pollution caused by PTA dust and artificial cleaning cost.

The utility model relates to the technical field of powder processing, and particularly discloses an ultrafine powder grinding and sorting system which comprises an ultrafine grinding batching device and an ultrafine grinding and grading device which are connected in series, and the ultrafine grinding batching device comprises a pre-grinding ball mill dust remover, a slag pre-grinding ball mill and an ultrafine powder ball mill. The superfine grinding and grading device comprises a powder concentrator, a bag type collector I, a powder bin for building materials and a grading mechanism; according to the utility model, raw materials in different forms are fed into the ultrafine powder ball mill to be circularly ground, the ground powder enters the powder concentrator to be sorted, ultrafine ground powder products with different mesh numbers can be selected in a controlled manner, the ground and sorted powder is small in particle size and wide in distribution range, and the large-particle-size powder product is used as a building material; and the small-particle-size powder is fed into a vertical multi-rotor superfine classifier for classification, and is used as a reinforcing material to replace carbon black and the like in rubber industry and plastic products, so that the application industry of the fly ash is widened, and the reutilization of the fly ash is improved.