21results about How to "Optimizing the Reaction Temperature" patented technology

The invention provides a fluidized bed control method, device and equipment and a storage medium, and the method comprises the steps: collecting a real-time temperature, a first pressure difference and a second pressure difference of a fluidized bed, the first pressure difference being a real-time pressure difference between an upper measurement point and a lower measurement point, which are different in preset height, of the fluidized bed, and the second pressure difference being a real-time pressure difference between the upper measurement point and the lower measurement point; the second pressure difference is a real-time pressure difference between the high-pressure stock bin and the fluidized bed; according to the first pressure difference and the second pressure difference, a cascade control method is used for determining control parameters of a pressure supplementing valve on the pressure adjusting pipe; the opening degree of the pressure supplementing valve on the pressure adjusting pipe is adjusted based on the control parameters of the pressure supplementing valve; according to the real-time temperature, determining a power parameter of the heater by using a cascade control method; and controlling the heating power of the heater based on the power parameter. And the fluidized bed pressure difference and the fluidized bed reaction temperature can be accurately controlled.

The invention relates to the technical field of temperature early warning management, in particular to an electrolytic bath temperature central monitoring and early warning system. The system comprises an in-tank temperature frequency domain analysis module, an in-tank temperature and energy consumption influence analysis module, an in-tank electrolytic strength abnormity response adjustment module, an in-tank temperature over-low abnormity early warning adjustment module and an in-tank iterative execution influence analysis module. Temperature sensors are arranged at key positions in an electrolytic cell to monitor temperature signal distribution in the cell in real time and carry out frequency domain analysis, and meanwhile, corresponding current and voltage are obtained, electrolyte energy consumption analysis and time sequence influence analysis are carried out, and a time sequence correlation influence degree is obtained; and if the conditions are gradually increased and the temperature fluctuation is increased, designing and implementing an energy consumption abnormity response measure, if the conditions are gradually reduced and the temperature fluctuation is reduced, designing and implementing a temperature abnormity response measure, and if the conditions are judged to be other conditions, continuing to iteratively execute the time sequence influence analysis. The stability and quality of the electrolysis process can be guaranteed.

The invention belongs to the field of medicinal chemistry, and particularly relates to a 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-ketone 8-site hydroxyl etherified derivative of a phosphodiesterase 2 inhibitor and application of the 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-ketone 8-site hydroxyl etherified derivative. The 3, 8-dyhydroxyl-6H-benzo [c] chromene-6-ketone 8-position hydroxyl etherified derivative is shown in the specification. According to the invention, 2-bromo-5-hydroxy-benzoic acid is used as a raw material, and etherification, hydrolysis and cyclization are carried out to obtain a final product. The purposes of reducing the reaction time, improving the product purity and improving the reaction yield are achieved by improving the reaction temperature, adjusting the catalyst concentration and optimizing the purification method. Meanwhile, the compound obtained by the invention has good PDE2 inhibitory activity. # imgabs0 #

The invention discloses a method for mechanical activation and oxygen pressure alkaline leaching of semi-oxidized tungsten-molybdenum ore, which relates to the technical field of hydrometallurgy and comprises the following steps: (1) crushing, beneficiating and finely grinding the semi-oxidized tungsten-molybdenum ore to increase the specific surface area of the semi-oxidized tungsten-molybdenum ore; (2) lime and distilled water are added to adjust the concentration of ore pulp, the fine tungsten-molybdenum ore powder is pretreated, and meanwhile heating and preheating are conducted; and (3) vacuumizing the reaction kettle, introducing oxygen, and adjusting the oxygen pressure and the reaction temperature for leaching. According to the method, microcracks can be generated in the ore through mechanical activation, oxygen pressure leaching is accelerated, meanwhile, under the alkaline conditions of heating and pressurizing, tungsten-molybdenum-calcium ore and scheelite in the ore powder are transferred into a leaching solution, and the tungsten-molybdenum leaching rate is increased. Experimental results show that the tungsten and molybdenum leaching rate of the refractory semi-oxidized tungsten and molybdenum ore can be effectively improved by optimizing the grinding granularity, the oxygen pressure, the reaction temperature, the ore pulp concentration and the reagent adding amount at the same time, and efficient leaching of tungsten and molybdenum in the semi-oxidized tungsten and molybdenum ore is achieved.

The invention provides a molecular sieve catalyst for purifying and recycling CO in soot. The molecular sieve catalyst is mainly prepared from the following raw materials in parts by weight: 65-70 parts of zeolite powder; 30 to 35 parts of pseudo-boehmite; 7.5 to 8.5 parts of a copper-based composition; and 9.2 to 12.5 parts of a calcium-based composition. The Cax type zeolite powder, the Nax type zeolite powder and the pseudo-boehmite are used as catalyst carrier raw materials, and the adsorption capacity and the adsorption selectivity of carbon monoxide are greatly improved through cooperation of the Cax type zeolite powder, the Nax type zeolite powder and the pseudo-boehmite, so that the final molecular sieve can achieve the effects of high temperature resistance, corrosion resistance, acid resistance and pressure resistance; the molecular sieve catalyst has good adsorptive selectivity on low-concentration carbon monoxide, and is suitable for purification and recovery of carbon monoxide in industrial soot.

The utility model belongs to the technical field of semiconductor epitaxial growth equipment, and particularly relates to a semiconductor material epitaxial growth device with a graphite plate, which comprises a reaction cavity tank body and a fixing ring, the fixing ring is fixedly arranged at the lower part of the outer surface of the reaction cavity tank body, a supporting column is fixedly arranged on the bottom surface of the fixing ring, and a connecting base is fixedly arranged on the bottom surface of the supporting column. A placing mechanism is arranged in the reaction cavity tank body. According to the semiconductor material epitaxial growth device with the graphite disc, the fixed rod is fixedly mounted on the bottom surface of the cover plate, and the electric heating lamp is fixedly mounted on the bottom surface of the fixed rod, so that electromagnetic waves can be generated through irradiation to perform epitaxial growth irradiation on a semiconductor material; and meanwhile, a spiral electric heating pipe mounted at the lower part in the reaction cavity tank body performs high-temperature heating, a substrate groove is formed in the inner bottom surface of a square groove formed in the upper surface of the graphite disc body, and a rectangular convex block is arranged in the substrate groove, so that a substrate can be controlled in a fixed area to facilitate operation.

The utility model discloses a glass reaction kettle feeding isolator which comprises a reaction kettle tank body, a fixed base is placed at the bottom of the reaction kettle tank body, protective supports are welded to the four corners of the top of the fixed base, universal wheels are fixed to the four corners of the bottom of the fixed base through bolts, and a sealing cover is arranged on the outer wall of the top of the reaction kettle tank body. The axis of the top of the sealing cover communicates with a fixing pipe, a stirring rod connected with a sealing bearing is arranged in the fixing pipe, the top of the stirring rod is connected with a stirring motor through a coupler, and the inner wall of one side of the top of the sealing cover communicates with a backflow pipeline. In the reaction treatment process, by adopting the reaction kettle tank body with a double-layer structure, the reaction temperature can be adjusted by utilizing continuously flowing temperature adjusting medium liquid, so that the reaction temperature is optimal, the reaction speed is improved, and the temperature adjusting medium liquid flows from bottom to top, so that the temperature adjusting efficiency is improved. And the internal temperature of the reaction kettle tank body can be heated more uniformly.

The utility model discloses a kind of for waste desulfurizer's calcination environmental protection processing equipment, including boiling roasting furnace, boiling roasting furnace inside is provided with combustion cavity, combustion cavity is wide on top and narrow on bottom, multiple temperature measuring devices are fixedly installed in combustion cavity inner wall;Boiling roasting furnace is annular fixed and is communicated with multiple combustion-supporting pipes and multiple gas burners, gas burner and combustion-supporting pipe are all inclined to set, multiple gas burners and multiple combustion-supporting pipes are one-to-one correspondence, combustion-supporting pipe is close to the low side of combustion cavity center, and one end of gas burner in combustion cavity is close to combustion-supporting pipe.The utility model in the present application, the cooperation of gas burner, combustion-supporting pipe and component, can accurately heat the middle or top position in boiling roasting furnace, avoid that temperature gradient is too large, ensure that all waste desulfurizer is at optimum reaction temperature, reduce the incomplete reaction caused by insufficient temperature, improve reaction efficiency.

The application belongs to the technical field of rubber additive synthesis, and particularly relates to a method for continuously preparing 4,4'-dithiodimorpholine. The method uses sulfur monochloride, morpholine, 32wt% liquid alkali (sodium hydroxide solution) and 120# solvent oil as raw materials, and generates 4,4'-dithiodimorpholine in a dynamic tubular reactor. After the reaction is completed, the material flowing out of the dynamic tubular reactor is collected, and the product is obtained through static layering, washing, filtering and drying. The method uses the dynamic tubular reactor for reaction, and the mass transfer and heat transfer efficiency are extremely high. The material is instantaneously and uniformly mixed, so that the morpholine and the sulfur monochloride are rapidly contacted and reacted, the reaction heat can be instantaneously removed, the optimal reaction temperature can be accurately maintained, the continuous production can be realized, the production capacity is greatly improved, the reaction time of the traditional kettle reactor is shortened from 2-7h to 10min, the raw material conversion rate is as high as 99% or more, and the goals of cost reduction and efficiency improvement, green safety are finally achieved.

The invention discloses a superfine full tailing filling paste water reducing agent as well as a preparation method and application thereof. The water reducing agent is prepared from the following raw material components in parts by weight: 60 to 120 parts of mother liquor and 0.08 to 0.12 part of hydroxypropyl methyl cellulose with the viscosity of 60000 MPa.s to 80000 MPa.s, and the mother liquor is prepared by taking ethylene glycol monovinyl polyethylene glycol ether as a macromonomer. The superfine full-tailing filling paste water reducing agent has the advantages of short synthesis time, low reaction temperature, good economic benefit, good applicability, good operability, capability of remarkably improving the compressive strength and the stability of a filling body and the like, is a novel water reducing agent with excellent performance, can be widely applied to superfine tailing filling, and can be used for preparing the superfine full-tailing filling paste water reducing agent under the action of the water reducing agent. Effective filling of the superfine tailings is achieved, the use value is high, the application prospect is good, and the method has important significance on cost reduction, efficiency improvement and green sustainable economic development.

The invention relates to the technical field of flue gas treatment, in particular to a flue gas ultra-low emission system and method based on chemical looping combustion, and the flue gas ultra-low emission system comprises an in-furnace in-situ desulfurization unit, a cyclone separator, a nitrogen oxide removal unit, a dust removal unit, an out-furnace desulfurization unit and a recirculation unit which are connected in sequence in the flue gas flowing direction; wherein the nitrogen oxide removal unit is arranged in a flue between the cyclone separator and the dust removal unit; and part of recycled flue gas treated by the dust removal unit and / or the recycling unit is at least used for diluting or atomizing a denitration reducing agent in the nitrogen oxide removal unit, and / or returns to a chemical looping coal feeding system. According to the invention, through creative connection relations and medium circulation paths among the units, the beneficial effects of ensuring carbon capture advantages, efficiently purifying special pollutants, realizing internal circulation integration of the system, having good economy and the like are generated.

The utility model discloses a kind of green soil material production systems based on calcium sulfite and sodium sulfite, comprising: reaction kettle shell, a pair of side bearing seat and kettle inner seat;The utility model relates to the technical field of green soil production and processing, the production system is realized by material pushing and stirring structure of accurate calcium sulfite and sodium sulfite with quantitative mixing: two raw materials are proportionally conveyed to reaction kettle shell by independent metering module, ensure uniform mixing by multidimensional continuous turning over after, cooperate with electric auxiliary heating layer and maintain optimum reaction temperature, then catalyst spraying release structure starts, atomizing spray nozzle will catalytic component with droplet form evenly cover material surface, make catalytic reaction efficiently, from process can completely eliminate raw material cross-contamination.

This invention provides a formaldehyde-free adhesive reaction vessel with rapid temperature control. The formaldehyde-free adhesive reaction vessel with rapid temperature control includes a reaction vessel body with an open top. Multiple annular temperature-conducting fins are fixedly connected to the inner surface of the reaction vessel body, evenly spaced along its height. The formaldehyde-free adhesive reaction vessel with rapid temperature control provided by this invention, by setting multiple temperature-conducting fins and heat exchange vertical pipes, has multiple annular temperature-conducting fins evenly spaced along its height on the inner wall surface of the reaction vessel. Vertical heat exchange vertical pipes are set within the multiple temperature-conducting fins and connected by multiple bends to form a serpentine structure. During actual operation of the reaction vessel, the heat exchange medium is sent into the serpentine heat exchange pipeline through an inlet / outlet pipe to exchange heat with the multiple temperature-conducting fins. The multiple temperature-conducting fins also increase the contact area between the inner wall surface of the reaction vessel and the material, thus enabling faster temperature control of the material and quickly reaching the optimal reaction temperature.

The application provides a MOFs derived copper fiber composite film and a preparation method and application thereof, and comprises the following steps: (1) adding copper nitrate trihydrate and trimesic acid into a solvent 1 to obtain a MOFs precursor solution; (2) performing a solvothermal reaction on the MOFs precursor solution to obtain a HK solid; (3) dispersing the HK solid and polyacrylonitrile into a solvent 2 to obtain an electrospinning precursor solution; (4) performing electrospinning on the electrospinning precursor solution to obtain a fiber film HK-1 / PAN; (5) immersing the HK-1 / PAN into a solution containing copper nitrate trihydrate and trimesic acid to perform a solvothermal reaction, and obtaining HK-2 / PAN; and (6) pre-oxidizing and calcining the HK-2 / PAN to obtain a MOFs derived copper-based composite film. The application utilizes a secondary growth strategy to improve the loading amount and uniformity of MOFs particles on the fiber film, and to enhance the catalytic activity and conductivity thereof, and is used for visual detection and efficient degradation of PFOA.

The utility model discloses a wastewater decoloration and degradation treatment device beneficial to heating and stirring laccase, and belongs to the technical field of wastewater treatment. The device comprises a reaction container, a stirring device, immobilized laccase, a baffle used for enabling wastewater to form turbulent flow and an annular heating structure are arranged in the reaction container, the annular heating structure comprises electric heating pipes, and the electric heating pipes are evenly arranged on the periphery of the stirring device. The stirring device comprises a driving motor, a rotating shaft and spiral blades arranged on the outer ring of the rotating shaft. By arranging the spiral stirring blade, the baffle plate and the plurality of groups of electric heating rods, more sufficient contact between wastewater and immobilized laccase is realized, the decoloration and degradation effects of the wastewater are improved, the temperature difference in the device is small, and the reaction and laccase in the device are ensured to be in a better state.

The utility model relates to the technical field of reactors, in particular to a novel explosion-proof normal pressure reactor which comprises an outer shell, a motor arranged on the upper surface of the outer shell, an exhaust fan arranged on the upper surface of the outer shell, a one-way air inlet valve arranged on the upper surface of the outer shell, and a heat conduction pipe arranged on the side face of the outer shell. A second limiting plate is fixedly connected to the side face of the cover plate, and a limiting notch is formed in an inner cavity of the cover plate; the device has the beneficial effects that the temperature of the temperature control device is adjusted, the liquid circulating pump is started, liquid passes through the temperature control device to change the temperature, when the liquid passes through the heat conduction pipe, the temperature in the outer shell reaches the optimal reaction temperature, insufficient reaction caused by too low temperature or out-of-control reaction caused by too high temperature is prevented, and therefore adverse effects are avoided; the exhaust fan is started and is matched with the one-way air inlet valve, so that explosion caused by overhigh air pressure in the outer shell due to excessive gas generated in the reaction process is avoided, and meanwhile, the gas generated by the reaction is also prevented from causing adverse effects on workers or the surrounding environment.

The invention discloses an efficient cooling tower with a quick scale removal function, which comprises a tower body, a heat exchange assembly, a circulating water spraying system and a steam exhaust fan, and a scale removal device for performing segmented soaking and scale removal on the outer surface of a heat exchange pipe is arranged in the tower body; the descaling device comprises a medicine dipping box driven by a walking driving mechanism, first round holes allowing the heat exchange pipes to penetrate through are formed in the two sides of the medicine dipping box, movable sealing plates with second round holes are movably arranged on the two sides of the medicine dipping box, and a conical sealing element is arranged at the end, facing the medicine dipping box, of each second round hole. The movable sealing plate is driven through cooperation of the magnetic attraction assembly and the spring and can be rapidly switched between the sealing position and the opening position, and rapid sealing and releasing of the medicine soaking box are achieved. The device realizes thorough removal of stubborn dirt on the surface of the heat exchange tube through segmented sealed soaking, and has the characteristics of thorough dirt removal, no damage to the tube, high automation degree and recyclable liquid medicine.

The utility model discloses a plant bacteriostatic agent producing and dissolving stirrer with a proportioning structure, which comprises a stirrer outer box body for mounting, a support frame fixedly mounted at the lower end of the stirrer outer box body, a motor fixedly connected to the middle part of the upper end of the stirrer outer box body, a measuring cylinder and a driving gear, the measuring cylinder is fixedly connected to the upper end of the stirrer outer box body, the outer side of the lower end of the measuring cylinder is fixedly connected with the discharging pipe, the interior of the upper end of the discharging pipe is rotationally connected with a valve, and the driving gear fixedly sleeves the outer side of the upper end of the first stirring rod. According to the plant bacteriostatic agent production and dissolution stirrer with the proportioning structure, the mixing and stirring efficiency is improved, the most suitable raw material mixing temperature is provided according to the change of the external temperature, the raw materials can be rapidly dissolved conveniently, the proportioning function of the stirrer is added, the amount of the raw materials can be rapidly controlled conveniently, a bacteriostatic agent is filtered before discharging, and the production efficiency of the plant bacteriostatic agent is improved. Undissolved blocky raw materials in the liquid are removed.

The invention relates to the technical field of yellow phosphorus tail gas treatment, and particularly discloses a yellow phosphorus tail gas purification device which comprises a magnetization pretreatment unit and a deep catalytic oxidation unit which are sequentially arranged in the tail gas flowing direction and communicate with each other. The deep catalytic oxidation unit comprises an electric heating catalytic reactor, a plurality of layers of electric heating catalytic nets which are arranged at intervals are arranged in the electric heating catalytic reactor, the electric heating catalytic nets are perpendicular to the flow direction of the tail gas, and all the layers of electric heating catalytic nets are electrically connected through conductive structures. The yellow phosphorus tail gas treatment device is optimized and improved, absolute dependence of traditional spraying washing on liquid drop atomization quality can be effectively avoided, the problems that a nozzle is blocked and a flow field is uneven are solved, and deep removal of difficult-to-treat components such as PH3 is achieved.

The present invention discloses a method for tracing the source of carbon and nitrogen elements based on isotope labeling, and relates to the technical field of element tracing. The method comprises: data acquisition: setting the initial temperature, obtaining the initial temperature item, obtaining the movement speed of the labeled isotope under the initial temperature item, and obtaining the initial speed item; stage division: dividing the reaction process into the first stage and the second stage, respectively setting the speed threshold for the first stage and the second stage, obtaining the first stage threshold item and the second stage threshold item, increasing the reaction speed in the first stage, and reducing the reaction speed in the second stage, limiting the maximum speed of the labeled isotope in the first stage and the minimum speed in the second stage. The present invention uses an adjustment method to adjust the real-time temperature based on the detection interval item, obtains the movement speed of the labeled isotope, obtains the real-time speed item, and judges the real-time speed item of the labeled isotope, thereby obtaining the optimal reaction temperature of the labeled isotope.

The invention provides a niobium titanic acid membrane catalytic material for efficiently synthesizing acetate spices at room temperature, which is characterized in that niobium titanic acid nanosheets with a specific number of acid sites are obtained by means of acid treatment and organic alkali intercalation stripping; niobium titanic acid membrane catalytic materials with different numbers of acidic sites are prepared by using a vacuum suction filtration method, and can be used for esterification reaction to synthesize acetate spices; the esterification reaction is carried out in a continuous mobile phase mode, reaction raw materials react in an interlayer confinement channel of a membrane catalytic material, a product flows out along with the mobile phase, and the rapid esterification reaction is realized under the condition of room temperature. Compared with a bulk phase reaction, the method has the advantages that the reaction temperature (23 DEG C) and the reaction duration (lt; the reaction efficiency is greatly improved, the reactant conversion rate can reach 100%, and the catalyst and the product do not need to be separated.