16results about How to "Process cleaning" patented technology

The invention provides a method for preparing a vanadium electrolyte by using aluminum oxide seed precipitation mother liquor crystallization vanadium slag, which comprises the following steps: carrying out reduction acid leaching on Bayer process seed precipitation mother liquor crystallization vanadium slag, converting V (V) and As (V) into V (IV) and As (III), adding an arsenic removal precipitator for arsenic removal, and further hydrolyzing to obtain VO (OH) 2; vO (OH) 2 is converted into a pentavalent vanadate solution through oxidation alkaline leaching, impurity ions such as arsenic, phosphorus, aluminum and silicon are further removed through multiple times of crystallization, and high-purity vanadate is obtained; and finally, high-purity vanadate is converted into a V (IV) solution through reduction acid leaching, an arsenic removal precipitator is added again, deep arsenic removal is achieved, VO (OH) 2 is obtained through hydrolysis, and VOSO4 electrolyte is prepared through sulfuric acid dissolution.

The present invention discloses a wellbore cleaning tool combination for oil and gas production and a cleaning method thereof, and specifically relates to the technical field of downhole tools for oil and gas production, wherein the tool combination comprises an end short section and an intermediate short section, both of which are hollow tubular structures, and both ends of the end short section and the intermediate short section have threaded joints, wherein the bottom of the end short section has a nozzle mounting hole A arranged downward, and the side wall of the end short section has a nozzle mounting hole B, and the nozzle mounting holes B are evenly distributed along the circumference of the end short section; the side wall of the intermediate short section has a nozzle mounting hole C, and the nozzle mounting holes C are evenly distributed along the circumference of the intermediate short section, and the nozzle mounting hole C has a cleaning nozzle installed in a rotatable manner, and the cleaning nozzle has at least three spiral water holes. Beneficial effects: It can meet various well repair needs of oil and gas wells, achieve better cleaning effects, and at the same time improve cleaning efficiency, relatively reduce operating costs, etc.

The present disclosure relates to the technical field of smart home, and discloses a bearing device and method and device, program and medium, cleaning device and system; the bearing device comprises a support part, a main body part and a driving assembly; the main body part comprises a bearing part; the driving assembly is connected to the main body part and the support part, and the driving assembly is configured to drive the main body part and the support part to move alternately. The bearing device enables the cleaning device to realize full cleaning in a larger range to meet the needs of users.

The utility model relates to emulsifying equipment convenient to clean and cool, and relates to the field of emulsifying equipment. The device comprises an emulsifying kettle body arranged on an emulsifying equipment frame, a weighing mechanism is arranged on the emulsifying equipment frame, and the weighing mechanism is in communication connection with a controller; a chamber is arranged in the emulsifying kettle body along the circumferential direction, the chamber is communicated with a cooling water inlet pipe, a cooling water return pipe, a chamber drain pipe, a steam inlet pipe and an air compressor inlet pipe, and electric valves are arranged on the cooling water inlet pipe, the cooling water return pipe, the chamber drain pipe, the steam inlet pipe and the air compressor inlet pipe; the bottom of the emulsifying kettle body is communicated with a blanking pipe, a blanking control valve is arranged at the blanking pipe, and a homogeneous stirring mechanism is arranged at the bottom of the emulsifying kettle body; the emulsifying kettle body is connected with an emulsifying kettle cover, a wall scraping mechanism is arranged at the top of the emulsifying kettle cover, the top of the emulsifying kettle cover is communicated with a cleaning spraying mechanism for spraying water into the emulsifying kettle, and the emulsifying kettle cover is provided with a high-pressure steam inlet for communicating high-pressure steam.

The invention discloses a synthesis method of 2, 6-di-tert-butyl-4-methylphenol, which comprises the following steps: filling a fixed bed reactor with an aluminum oxide or silicon dioxide supported metal oxide catalyst, introducing hydrogen and nitrogen mixed gas at 180-250 DEG C to activate the catalyst, cooling the fixed bed to a reaction temperature in a hydrogen atmosphere, and reacting for 2-4 hours at the temperature of 180-250 DEG C to obtain the 2, 6-di-tert-butyl-4-methylphenol. The invention discloses a method for preparing 2, 6-di-tert-butyl-4-methylphenol, which comprises the following steps of: pumping a 3, 5-di-tert-butyl-4-hydroxybenzyl methyl ether solution into a fixed bed at a fixed flow rate under the condition of keeping a certain hydrogen pressure, and cooling reaction liquid to obtain a 2, 6-di-tert-butyl-4-methylphenol solution, compared with the existing method, the method has the advantages of clean process, high efficiency and high reaction selectivity.

The invention discloses a hull surface cleaning robot, and relates to the field of hull surface cleaning robots. The hull surface cleaning robot comprises a cleaning robot body, a lifting unit, an air cylinder, an adjusting unit, a guiding unit and an extruding unit. According to the hull surface cleaning robot, when one air cylinder is started to move, an upper rotating seat is driven to move, a connecting rod is pulled to rotate, so that a lower rotating seat rotates relative to a rotating block, and at the moment, the rotating block drives the connecting seat to rotate and drives an extrusion unit and a mounting rod to rotate; the position of the cleaning rolling brush is adjusted in an inclined mode, inclined objects on the ship body are conveniently cleaned, the requirement for cleaning the inclined face on the ship body is met, the ship body cleaning device is suitable for cleaning different faces of the ship body, and when the cleaning rolling brush makes contact with the ship body in an extrusion mode, the cleaning rolling brush is pushed to make contact with the ship body in an extrusion mode under rebound of a spring, and the ship body cleaning strength is improved.

The invention relates to an ammonium metavanadate high-concentration vanadium electrolyte and a preparation method thereof. The supporting electrolyte of the electrolyte is sulfamic acid, and the positive electrode electrolyte and the negative electrode electrolyte comprise vanadium ions, sulfonic acid ions and ammonium ions. The positive electrolyte mainly contains tetravalent V (VI) and pentavalent V (V) vanadium ions, and the negative electrolyte mainly contains trivalent V (III) and divalent V (II) vanadium ions. The preparation method comprises the following steps: firstly, preparing a sulfamic acid-based ammonium metavanadate electrolyte precursor with the vanadium ion concentration of 2.0-4.0 mol / L through a sectional reduction method, specifically, dissolving ammonium metavanadate and an optional reducing agent in a sulfamic acid solution, controlling the pH value of the reaction to be 1.0-3.0, and controlling the temperature of the reaction to be 60-100 DEG C to obtain a positive electrode electrolyte precursor and a negative electrode electrolyte precursor; and further obtaining a positive electrode electrolyte and a negative electrode electrolyte of the redox battery through the electrolyte precursor, wherein the positive electrode electrolyte and the negative electrode electrolyte can be used as active substances to form various redox batteries.

Hydraulic cylinder barrel inner wall cleaning equipment comprises a cleaning device, the cleaning device comprises a conveying pipe, a reinforcing head, cleaning cotton, a cleaning head and a rotating frame, the conveying pipe is arranged on one side of the rotating frame and used for conveying cleaning liquid, the reinforcing head is arranged at one end of the rotating frame, and the cleaning cotton is arranged at one end of the reinforcing head. The cleaning cotton is used for cleaning the interior of the cylinder needing to be cleaned, and a cleaning head is arranged on the lower portion of the rotating frame and used for spraying cleaning liquid. The rotating shaft is driven to rotate through the connecting strip, then the rotating frame can be driven to rotate, then the rotating frame can drive the cleaning cotton arranged at the front end of the rotating frame, and cleaning of the interiors of hydraulic cylinders of different sizes can be met by rotating the rotating frame.

The utility model provides a production device of a substituted pyrazole acid compound. The production device comprises an oxidation reaction unit, a hydrolysis reaction unit, a first solid-liquid separator, an alkaline hydrolysis reaction unit, an acidification reaction unit, a second solid-liquid separator, a pulping kettle, a third solid-liquid separator and a first drying machine. According to the production device provided by the utility model, substituted pyrazole acid compounds and potassium sulfate can be obtained through separation at the same time, the generation of waste acid, waste gas and waste salt in the production device is reduced, and the process is clean, green and environment-friendly. And an ethanol recovery tower is arranged in the reaction process, so that the comprehensive utilization of ethanol is realized, and the economical efficiency of the product is improved.

This invention provides a method for extracting vanadium from vanadium-containing raw materials. The method includes the following steps: (1) oxidizing the vanadium-containing raw materials to obtain pentavalent vanadium oxide clinker; (2) leaching the pentavalent vanadium oxide clinker with a sodium salt solution to obtain a sodium vanadate solution and leaching residue; (3) adding a reducing agent to the sodium vanadate solution to reduce vanadium, and introducing CO2 to adjust the pH of the solution to obtain vanadium dioxide product and a recovery solution. The recovery solution is returned to step (2) as a leaching solution for recycling. The method for extracting vanadium from vanadium-containing raw materials provided by this invention has a short process, low technical difficulty, low cost, and is environmentally friendly. The comprehensive utilization rate of vanadium is greater than 98%, the purity of the vanadium product is greater than 98%, and the sodium content is less than 0.5%.

The invention discloses a tool and method for controlling the depth of a contaminated layer on the surface of titanium alloy, and the tool comprises a box body which is provided with an opening in the top and is used for accommodating a titanium alloy part to be treated; the top cover assembly is connected with the opening of the box body, the top cover assembly comprises a ceramic matrix composite one-way cover and a one-way exhaust valve, a plurality of vent holes are formed in the ceramic matrix composite one-way cover, and the one-way exhaust valve is installed at the vent holes; the sealing piece is arranged at the joint of the box body and the sealing cover assembly, and the sealing piece is an annular aerogel gasket; the internal bearing mechanism comprises a plurality of internal bearing assemblies, and the plurality of internal bearing assemblies are arranged in the box body; and the pre-vacuumizing valve is arranged on the box body. According to the method, the depth of the surface pollution layer of the titanium alloy subjected to heat treatment can be stably controlled within 0.05 mm and is obviously superior to the upper limit of 0.08 mm required by the existing industrial standard.

This invention belongs to the field of petroleum extraction technology, specifically relating to a desulfurizing agent for oil wells and its preparation method. The preparation method includes: in an alkaline organic solvent, 1,4-bis(3-aminopropyl)piperazine and 1,3-dichloro-2-propanol undergo a first substitution reaction to obtain an intermediate; subsequently, the intermediate undergoes a second substitution reaction with 2-hydroxy-N,N-bis(2-aminoethyl)ethylamine to obtain the oil well desulfurizing agent. Based on 1 mole of 1,4-bis(3-aminopropyl)piperazine, the amounts of 1,3-dichloro-2-propanol and 2-hydroxy-N,N-bis(2-aminoethyl)ethylamine are 1.6-2.4 moles and 1.6-2.4 moles, respectively. The desulfurizing agent of this invention has the advantages of rapid desulfurization and good desulfurization effect, with a sulfur capacity of over 33%.

The invention relates to the technical field of intelligent closestool assembly, in particular to an intelligent closestool automatic assembly line which comprises a base, an annular frame is fixedly installed in the middle of the upper end face of the base, and a rotating seat is slidably installed in the middle of the annular frame through an electric sliding block and is arranged at multiple stations. According to the closestool cleaning device, the motor is started to drive the threaded rod to rotate, so that the cleaning brush cleans the closestool, meanwhile, a compression plate can be driven to move up and down in a reciprocating mode, when a piston rod is compressed downwards, the piston rod is driven to rotate, and when the piston rod is compressed downwards, the closestool can be conveniently cleaned. Cleaning liquid in a liquid storage tank is sprayed to a cleaning brush through a spraying pipe, air pressure in a pressurizing cylinder blows air to the intelligent closestool through a cleaning pipe, dust on the surface of the intelligent closestool is blown to be cleaned, meanwhile, the cleaning liquid for wiping can be quickly dried when the cleaning pipe blows air, and when the interior of the pressurizing cylinder is sucked upwards, the cleaning liquid is quickly cleaned. And the spraying pipe is plugged by the rubber plug.

The utility model relates to cutting device technical field especially, it relates to a cutting device for filter cloth production, including support frame body and setting cutting structure at its top, the both sides of cutting structure are provided with feeding structure and pull material structure respectively, the utility model discloses a sealing box is arranged between feeding structure and cutting structure, and sets up cleaning assembly in sealing box inside, can scrape off and clean the fiber that adheres to the both sides of filter cloth before cutting through two groups of cleaning stick, can also spray airflow to the both sides of filter cloth through two groups of air knives, carries out cleaning to the carbon ash on filter cloth surface, carries out cleaning operation to the fiber and carbon ash remaining on filter cloth surface, and then can guarantee the quality of filter cloth after cutting, avoids still needing to use additional cleaning equipment to clean the filter cloth after cutting after cutting, can guarantee that cutting work and cleaning work carry on simultaneously, improve the production efficiency of filter cloth.

This invention belongs to the field of industrial waste resource utilization technology, and discloses a zero-discharge resource utilization method for polysilicon waste liquid. The method involves adding sodium hydroxide solution to chlorosilane waste liquid and reacting it, then obtaining sodium silicate solution through stepwise extraction with dilute alkali or one-step extraction with concentrated alkali. Furthermore, calcium carbide slag is calcined and slaked to obtain lime slurry. Then, the sodium silicate solution and lime solution are added to a reaction vessel according to a specific ratio and heated for reaction. The resulting mixture is filtered to obtain microporous calcium silicate material. The filtrate can be recycled as an alkaline solution for chlorosilane waste liquid. This invention effectively solves the problems of scarce resource utilization pathways and low utilization efficiency of chlorosilane waste liquid by synergistically utilizing chlorosilane waste liquid and calcium carbide slag solid waste. The resulting microporous calcium silicate material has excellent physicochemical properties. Simultaneously, the process is simple and the conditions are mild, achieving comprehensive utilization of industrial waste liquid and residue while also contributing to energy conservation, emission reduction, and source environmental protection.

The invention relates to the technical field of magnesium ion batteries, and discloses a high-stability boron-based magnesium salt and an efficient and large-scale preparation method and application thereof. The invention adopts a simple and efficient anion replacement method. The boron-based magnesium salt is quickly prepared by reacting a boron source with a magnesium source to generate a borohydride and an alcohol source, with a yield of 79-96%. The product has good stability to air and water, high purity, good conductivity, and no other metal cations and chloride ions are introduced. The entire process is short, clean and environmentally friendly, safe and reliable, efficient and low in energy consumption, and has industrial prospects. Compared with the existing two-step preparation method, the preparation efficiency is increased by more than 80%; compared with the direct use of magnesium borohydride raw materials, the cost can be reduced by up to 93%.