10results about How to "Good price" patented technology

The invention discloses a method for synergistically hydro-thermally treating sludge based on tea residue and organic acid, which comprises the following steps: mixing sludge with organic acid and tea residue, and performing hydro-thermal treatment and dehydration treatment on the obtained mixed slurry to obtain filtrate and a mud cake. According to the method for carrying out the synergistic hydrothermal treatment on the sludge based on the tea residues and the organic acid, the hydrothermal reaction temperature can be remarkably reduced under the synergistic effect of the tea residues and the organic acid, meanwhile, the sludge is subjected to the synergistic hydrothermal treatment through the organic acid and the tea residues, the dehydration performance of the sludge can be effectively improved, and meanwhile generation of nondegradable organic matter such as melanoidins can be effectively inhibited; therefore, efficient, environment-friendly, recycling and low-cost treatment of the sludge can be realized by fully utilizing the characteristics of the organic acid and the tea residues and cooperating with a hydrothermal treatment technology, and the method has the advantages of low reaction temperature, high treatment efficiency, low energy consumption, good dehydration effect, greenness, environmental protection and the like; wide application prospects and popularization values are realized.

The application relates to a method for rapidly preparing a porous Cu / Zn heterojunction electrocatalytic material and application. The method utilizes a dynamic hydrogen bubble template method to prepare the heterojunction electrocatalytic material, and the preparation is carried out under the condition of a higher cathode deposition current. The specific steps are as follows: firstly, copper sulfate, zinc sulfate and ammonium sulfate are dissolved in deionized water according to a certain ratio to serve as an electrodeposition solution. The electrodeposition is carried out at room temperature, the deposition condition is controlled by using a direct current power supply, a hydrophilic carbon paper is used as a substrate electrode, and the porous Cu / Zn heterojunction material is deposited for 30 seconds under the condition of a deposition current of-1.0 A. The preparation scheme can realize in-situ rapid preparation of the porous material, the loading is uniform and stable, the operation process of a relatively cumbersome hard template method is avoided, and the electrocatalytic carbon dioxide reduction preparation carbon monoxide performance is very high.

The application relates to an ionic liquid modified Cu-based bimetal electrode material and a preparation method and application thereof, and belongs to the technical field of material preparation. The method uses an in-situ reduction method to prepare the ionic liquid modified Cu-based bimetal electrode material, and the specific steps are as follows: copper salt and lanthanide chloride are dissolved in deionized water, and then ionic liquid is added after mixing; the mixture is stirred for 30 minutes under ice bath conditions. The above solution is slowly dropped into a sodium borohydride aqueous solution, the precipitate is extracted and filtered after the reaction is completed, the precipitate is washed with ethanol and water alternately for several times, and then the black solid is obtained after drying. The black solid is ultrasonically dispersed in a mixed solution of Nafion and isopropanol, then the dispersion liquid is uniformly coated on a gas diffusion electrode, and the electrode is pre-activated by a cyclic voltammetry method in a carbon dioxide-saturated electrolyte, so that the ionic liquid modified Cu-based bimetal electrode material is obtained. The electrode can be used as a high-efficiency electrode material to realize the conversion of carbon dioxide into ethylene under mild conditions. The Cu-based electrode material synthesis method has the characteristics of simple process and low cost, and is suitable for large-scale production and application.

The invention provides a sales management system for mobile communication products. The system comprises the steps of collecting inventory state parameters of the mobile communication products; on the basis of the inventory state parameters, sales trend prediction of each sales channel is obtained through calculation; determining a sales strategy optimization function of a preset sales channel according to the sales trend prediction; determining market demand state information of a sales management system of the mobile communication product based on the inventory state parameters; determining a price adjustment function of the preset sales channel according to the market demand state information; determining a sales management gain coefficient of the preset sales channel according to a preset boundary condition, the sales strategy optimization function and the price adjustment function; and based on the sales management gain coefficient, controlling the preset sales channel to optimize the sales management of the mobile communication product. According to the invention, the efficiency of sales management and the market response speed can be improved, and the competitiveness of sales channels is enhanced.

The utility model discloses an oil-oil sleeve flange structure, which comprises a capacitor core, an end ring and a flange cylinder are sleeved on the capacitor core, and the end ring is fixedly connected with the front end flange surface of the flange cylinder; two convex rings are formed on the capacitor core in the flange cylinder, an accommodating space is formed between the two convex rings and the flange cylinder, and resin adhesive is filled in the accommodating space; the convex ring at the front end abuts against the inner side face of the end ring and is attached to the inner ring face of the flange cylinder; sealing rings are arranged on the abutting face of the flange cylinder and the end ring and the attaching face of the flange cylinder and the protruding ring. The convex ring at the rear end abuts against the inner side face of the rear port of the flange cylinder and is attached to the inner ring face of the flange cylinder. The capacitor core at the rear side of the convex ring is also attached to the inner ring surface of the rear port of the flange cylinder, and a sealing ring is also arranged at the attached part of the capacitor core and the inner ring surface of the rear port of the flange cylinder; the flange cylinder is provided with a terminal, and the terminal is connected with an end screen lead of the capacitor core. According to the utility model, the sealing effect is excellent, and the problem of high dielectric loss caused by damp of the end screen lead due to air entering can be effectively prevented.

The utility model discloses an intelligent weighing system suitable for different forms of materials, which comprises a wagon balance, a monitoring camera, a license plate recognition camera, a terminal device and a cloud server, the wagon balance is wirelessly connected with the cloud server, the monitoring camera is arranged at one end of the wagon balance and is wirelessly connected with the cloud server, and the terminal device is connected with the terminal device. The license plate recognition camera is arranged on one side of the wagon balance, the terminal device comprises a terminal camera, a terminal display screen and a terminal NFC sensor, the terminal camera and the terminal NFC sensor are both arranged on the terminal display screen, and the terminal display screen is connected with the wagon balance through a serial port line and is wirelessly connected with the cloud server. According to the utility model, convenient weighing measures are provided for clients with different material carrying modes; delivery personnel perform self-service weighing, so that the weighing efficiency is improved; algorithms and processing are provided for all data through the cloud server, and the equipment is guided to perform functional operation.

The present invention relates to a valve device with adjustable compression damping, comprising a valve seat, a valve sleeve, a valve body, a valve stem, a low-pressure valve pin, a high-pressure valve pin and a sliding valve assembly, wherein the valve sleeve side wall is provided with a plurality of flow guide holes in a circumferential array, the low-pressure valve pin and the high-pressure valve pin are both provided on the upper part of the valve seat through axial sliding of a spring, the upper part of the low-pressure valve pin and the upper part of the high-pressure valve pin are both provided with flow guide holes, and the sliding valve assembly is located in the sliding valve cavity; a shock absorber group for resisting vehicle rollover, comprising two shock absorbers, wherein the shock absorber comprises an oil storage cylinder, a working cylinder, an intermediate cylinder and a valve device. The purpose of the present invention is to solve or at least alleviate the problem that the traditional compression valve relies on an electronic control system and a sensor, has a high product cost and a low system reliability, and to provide a valve device with adjustable compression damping.

The present invention relates to an insecticidal and mildew-proof tobacco alcoholization composition and a preparation method and application thereof, and belongs to the technical field of tobacco processing. The present invention provides an insecticidal and mildew-proof tobacco alcoholization composition, the components of which include glucose oxidase, catalase, glucose, mildew inhibitor, chitosan, glycerol, acetic acid and water. The tobacco alcoholization composition provided by the present invention is composed of natural ingredients, is safe and non-toxic to use, and is sprayed on tobacco leaves to form a thin film with mechanical properties and barrier properties, and has a moisturizing effect, which can maintain the moisture content of tobacco leaves during the alcoholization process, and is more conducive to the natural alcoholization of tobacco leaves. The glucose oxidase and catalase in the film can oxidize the glucose contained in the film liquid to consume oxygen, and when interacting with the mildew inhibitor, the effect of insect resistance and mildew prevention can be achieved on naturally alcoholized tobacco leaves by controlling the oxygen content and inhibiting the growth of mold.

The present invention provides a microbial-based biochar, a microbial-based single-atom iron catalyst, and a preparation method and application thereof. Microorganisms with high nitrogen content are used as precursors of biochar. Compared with plants, microorganisms are rich in heteroatoms such as N, O, P, etc., and a large number of C-N structures can be obtained. Transition metal iron is loaded on the surface of the biochar by a chemical method to prepare a microbial-based single-atom iron catalyst. During the carbonization process of the catalyst, Fe species will not agglomerate to form iron oxides, but will be uniformly dispersed on the surface of the microbial-based biochar in the form of single iron atoms and atoms such as N and O, and abundant nitrogen is distributed around the iron to form Fe-C-N active centers, thereby obtaining a biocomposite single-atom iron material with high oxygen reduction catalytic activity, methanol resistance and stability. The preparation material is low in price, the process is simple, the catalytic performance is better than that of commercial platinum-carbon catalysts, and the catalyst has the potential to replace precious metal catalysts.

The utility model provides a kind of top-mounted electric mixer with Morse connection chuck, it is related to electric mixer technical field, including shell, drive shaft, chuck, stirring paddle, the drive shaft includes shaft body, the shaft body is equipped with the through-hole of shaft that can be passed by stirring paddle, the shaft body is rotationally arranged in shell by bearing, the lower part of the shaft body is provided with outer Morse taper, the chuck is used to fix stirring paddle, the inner sleeve of the chuck is equipped with the inner Morse taper that is compatible with outer Morse taper.The top-mounted electric mixer with Morse connection chuck, chuck is connected between drive shaft by Morse taper, and the two are pressed together by Morse taper, compared with the mode of traditional screw fixation, chuck and drive shaft are connected closely, without gap, and coaxiality is good.No special custom-made parts are needed, the price is low, the cost advantage is big, and the product application range is wide.