8results about How to "Avoid underreaction" patented technology

The application discloses a preparation method of a europium-doped germanate red luminescent material, and is used for preparing a material with a chemical general formula of (0.025<=<=0.1). The method comprises the following steps: sodium carbonate, calcium carbonate, germanium dioxide and europium sesquioxide are weighed according to a metering ratio, wet grinding is carried out in a garnet mortar with anhydrous ethanol as a medium for 1-2 hours, and natural air drying is carried out; the dried powder is loaded into a corundum crucible and placed in a tube furnace, a solid phase reaction is carried out under an air atmosphere, the temperature is raised to 850 DEG C at a speed of 5 DEG C / min, and the temperature is kept for 6-8 hours; after the calcination is completed, the heating power is turned off, the product is naturally cooled to room temperature along with the furnace, and crushing and grinding are carried out to obtain the material. Through optimization of wet grinding and temperature control calcination and cooling parameters, the material powder agglomeration is avoided, and technical problems such as easy appearance of derived impurities in the synthesized product, low crystallinity and existence of residual stress in the crystal are solved.

The application discloses a kind of electric pile module structures, it is related to fuel cell technical field;The electric pile module structure includes shell and the electric pile core being arranged in the shell inside, wherein the shell includes cover body and the top plate and bottom plate being respectively arranged in the top and bottom of the cover body;The cover body is equipped with air inlet and exhaust hole;The inside of the cover body is sequentially equipped with shunt structure and confluence structure along the direction of airflow flow;Wherein, the shunt structure is used to shunt the air that flows into by the air inlet into at least two airflow and make it flow to the different areas of the electric pile core respectively;The confluence structure is used to confluence and discharge through the exhaust hole after the tail gas of the electric pile core reaction.This application provides technical scheme to ensure that air can be evenly distributed, to ensure the overall performance and long-term operation stability of electric pile.

The present application relates to the technical field of contaminated soil remediation, and discloses a contaminated soil stabilization disposal resource utilization method and system, which comprises the following steps: obtaining pollution characteristic parameters and dividing multiple pollution grade intervals, performing crushing screening with different screening mesh numbers on the soil in each interval; determining the dosing formula and dosing amount of the stabilization agent according to the pollution grade interval corresponding to each soil graded material, and performing first-stage mixing reaction; mixing and adjusting the obtained first-stage stabilization product according to the grading proportion and supplementing auxiliary curing agent, and performing second-stage mixing reaction; after the moisture content is adjusted, compaction forming, curing, surface sealing treatment and quality inspection, the product is output as a resource utilization product after passing the inspection; and the present application also provides a modular system corresponding to the method. The present application realizes precise grading disposal and resource utilization of contaminated soil, the dosage of the agent is matched reasonably, the product quality is stable, and the present application is suitable for soil remediation engineering of various heavy metal contaminated sites.

The application discloses a stirring mill type powder reactor for processing high specific surface area calcium hydroxide, and relates to the technical field of calcium hydroxide processing equipment. The reactor comprises a mounting base, which is provided with a stirring mill box and a reaction box, and is internally provided with a stirring mill crushing assembly and a mixing reaction assembly, respectively. High-activity calcium oxide powder is fed into the reaction box through a feeding box, and water solution and dispersants supplied by two proportioning boxes are transferred to a reaction drum through a transfer conveyor, so that full reaction is realized in cooperation with a turnover plate. After reaction, the material is fed into a stirring mill drum through a dropping pipe, is crushed by spiral stirring mill blades and grinding tooth blocks, and is output through a conveying mechanism. The application adopts an integrated structure, is matched with temperature control, sealing and pulse air supply design, improves mixing uniformity and reaction efficiency, refines powder particle size, and helps to prepare high specific surface area calcium hydroxide. The structure is compact, operation is convenient, and practicality is high.

The application discloses a kind of gas-liquid two-phase mixing type reaction kettle for pharmaceutical intermediates production and drive control method, it is related to pharmaceutical intermediates production equipment technical field.In the application: the bottom of reaction kettle is equipped with gas inlet end, inner cavity is configured with driving shaft and stirring paddle, top cover is configured with gas concentration sensor and multiple inverted cone, and inner cavity is provided with floating mixing disc.The piston ring is arranged on the side of floating mixing disc, the main shaft sleeve and the flow guide pipe are arranged on the top of floating mixing disc, the jet nozzle is arranged on the top end of flow guide pipe, and the liquid outlet of jet nozzle is opposite to the lowest point of inverted cone.The floating mixing disc is provided with flow guide slope and flow guide channel, the flow blocking component is elastically installed at the flow guide channel, a liquid level meter is further arranged, and the reaction kettle is provided with a hydraulic system for driving the floating mixing disc to rise and fall.The application realizes efficient mixing of gas-liquid two-phase by dynamically controlling the rising and falling of floating mixing disc, improves reaction efficiency and product quality, and is suitable for gas-liquid two-phase reaction production of pharmaceutical intermediates.

The invention discloses a high-end healthy protective fabric processing technology and equipment, and belongs to the field of fabric processing equipment. The problems that when existing fabric processing equipment is used for soaking, solution circulation is poor, raw material reaction is uneven, the solution temperature is difficult to control, impurities are prone to blockage, and much solution is wasted during dehydration are solved. According to the technical scheme, the top of a solution barrel is fixedly communicated with a top barrel, two symmetrical air cylinders are arranged on the outer wall of the solution barrel, air cylinder piston rods are connected with a fixing frame, a motor is installed on the fixing frame, and a motor output shaft is connected with a driving shaft which slidably penetrates through the top barrel and is connected with a soaking barrel with a hole and a blocking cover; a heat exchange cover with a heating wire is arranged on the inner wall of the bottom of the solution barrel; a blow-off pipe with filter holes and spiral pushing blades is arranged on the side of the solution barrel, a rotating shaft with stirring blades and a positioning assembly are arranged at the bottom of the soaking barrel, and the top barrel is matched with the soaking barrel to achieve dehydration. The method is mainly used for preparing high-end healthy protective fabric, reaction uniformity and processing quality can be improved, and solution waste is reduced.

The invention discloses a stirring mill type powder reactor for processing calcium hydroxide with a high specific surface area, and relates to the technical field of calcium hydroxide processing equipment. The reactor comprises a mounting base, a stirring and grinding box and a reaction box are arranged on the mounting base, and a stirring and grinding crushing assembly and a mixing reaction assembly are arranged in the stirring and grinding box; high-activity calcium oxide powder is fed into the reaction box through the feeding box, and an aqueous solution and a dispersing agent which are supplied by the two proportioning boxes are transferred and conveyed to the reaction rotary drum and are matched with the turning plate to realize full reaction; and the reacted material enters the stirring and grinding drum through the blanking pipe, is crushed by the spiral stirring and grinding blade and the grinding tooth block, and is output by the conveying mechanism. An integrated structure is adopted, temperature control, sealing and pulse air supply design is matched, the mixing uniformity and the reaction efficiency are improved, the particle size of powder is refined, preparation of calcium hydroxide with the high specific surface area is assisted, the structure is compact, operation is convenient and fast, and practicability is high.

The utility model discloses a liquid changing device for chemical reagent additive preparation, and relates to the technical field of chemical experiment instruments. The chemical reagent additive preparation liquid changing device comprises a liquid changing bottle and a clear water bottle, the liquid changing bottle and the clear water bottle are communicated together through a guide pipe, a one-way valve is arranged at the joint of the guide pipe and the clear water bottle, the top of the liquid changing bottle is provided with a stirring rod, and the stirring rod is transversely arranged in the liquid changing bottle; through the arrangement of the starting piece, when the liquid changing bottle is used for proportioning reagents, the starting piece is used for driving the stirring rod to rotate in a reciprocating mode, the reagents in the liquid changing bottle are disturbed, the mixing effect of the reagents is improved, the reagents are prevented from being not fully reacted, meanwhile, the starting piece can extract residual harmful gas in the guide pipe in the operation process, and the operation is convenient. And by means of the design of the air spraying head structure, fusion of the harmful gas and the clean water in the clean water bottle is accelerated, and the treatment efficiency of the harmful gas is improved.