43results about How to "Avoid underreaction" patented technology

The invention relates to preparation method for high water-soluble nano carbon tube, which comprises acidifying purifying treatment, acylchloridization and grafting. Wherein, based on not destroying its high length-diameter ratio and electron valence band structure, using chemical modification to graft lycine on wall and end of the tube to endow its high water-solubility of 30mg/ml and biocompatibility; reflowing the tube in HNO3 to remove the impurity metal catalyst particle and carboxylate the tube; then, reflowing tube in SOCl2 for completed acylchloridization; finally, acyl chloride group and amido in grafted lycine react to obtain the product.

The invention discloses a municipal sewage integrated treatment device, which comprises a filtering tank, an oil removal groove, an anaerobic tank, an anoxic tank, an aerobic tank, a precipitation tank, a sludge pump and a control cabinet, wherein the bottom end of the oil removal groove is communicated to the bottom end of the filtering tank through a U-shaped pipe, the oil removal groove comprises an oil-water separation membrane and a backwashing device, the anaerobic tank is communicated to the oil removal groove and comprises a lifting type filler groove, the anoxic tank is connected to the anaerobic tank, and comprises a rotary aeration device, the aerobic tank is connected to the anoxic tank, a cyclone aerator is arranged at the bottom of the aerobic tank, the precipitation tank isconnected to the aerobic tank, and the sludge pump is connected to the bottom end of the precipitation tank, and the control cabinet is respectively connected to the backwashing device, a first waterpump, a lifting motor, a second water pump, an aerator, a rotating motor, a third water pump, the cyclone aerator and the sludge pump. According to the invention, the device has advantages of novel structure, convenience use, good treatment effect and the like.

The invention discloses a method to eliminate primary Beta grain boundary in laser additive manufacturing TC4 alloy by induction heating of added B; the method comprises the steps of S1, drying B powder and titanium alloy powder in vacuum, wherein the B power accounts for 0.01-0.2% by mass; S2, mixing well the dried B powder of step S1 and titanium alloy powder to obtain mixed powder; S3, heatinga base material to 900-1100 DEG C, and forming a sample on the base material by a laser additive manufacturing apparatus. The method has the advantages that primary Beta grain boundary of laser additive manufacturing TC4 can be eliminated, grain is fined, and microstructure of TC4 alloy is improved.

The invention discloses an environment-friendly cooling reaction kettle for chemical production. The environment-friendly cooling reaction kettle includes a supporting underframe, a reaction kettle main body is fixedly connected to the middle of the top end of the supporting underframe; a protective shell is fixedly connected to the middle of the outer side of the reaction kettle main body; one side of the supporting underframe is fixedly connected with a cooling oil tank. The top of the cooling oil tank is fixedly connected with a cold oil pump through an oil pipe; the input end of the cold oil pump is electrically connected with the output end of mains supply; one end of the cold oil pump is fixedly connected with a lower cooling oil pipe; a heat exchanger is fixedly connected to the bottom of one side, corresponding to the protective shell, of the top of the lower cooling oil pipe; according to the reaction kettle, the temperature of the reaction kettle can be slowly and quickly reduced through a temperature conversion mechanism, damage to the reaction kettle due to sudden temperature drop is prevented, the production safety of the reaction kettle is improved, the phenomenon ofenvironmental pollution caused by chemical agent leakage due to explosion of the reaction kettle is prevented, and the environmental protection performance of the reaction kettle is improved.

The invention discloses a high-efficiency reactor for hydrated salt chemical energy storage. The high-efficiency reactor comprises a heat insulation container, a column body for wrapping hydrated salt, a heat exchange pipe, fins, hydrated salt and pipelines, wherein the column body is arranged in the heat insulation container; the heat exchange pipe is arranged at the center of the column body; the multiple fins are uniformly arranged between the heat exchange pipe and the column body; one end of each fin is connected with the outer wall of the heat exchange pipe, and the other end of the fin is connected with the inner wall of the column body; a space between the heat exchange pipe and the column body is filled with the hydrated salt; and the two pipelines are arranged on an upper end cover of the heat insulation container. The high-efficiency reactor for hydrated salt chemical energy storage disclosed by the invention can well enable reaction salt to react with steam; the reaction is faster and more thorough, and the heat transfer and mass transfer effect in a reaction process is obviously enhanced; irreversible loss caused by liquefaction of the hydrated salt due to excessive water absorption can be further effectively avoided, so that the number of times of recycling of an energy storage material is increased, and the service life of the material is prolonged; and meanwhile, the corrosion effect of the liquefied hydrated salt on the reactor is also avoided.

The invention discloses a reaction kettle which comprises a kettle body and a kettle cover, wherein a motor is arranged on the kettle cover; the lower part of the motor is connected with a speed reducer; the speed reducer is provided with an output shaft; the lower part of the output shaft of the speed reducer is connected with a reaction paddle; the kettle body comprises a closed jacket composed of an outer wall and an inner wall; the reaction paddle comprises a first reaction paddle and a second reaction paddle which is perpendicular to the first reaction paddle; the first reaction paddle and second reaction paddle are respectively provided with multilayer blades in the vertical direction; and the inclination directions of the blades of the first reaction paddle are not completely consistent. The reaction kettle can implement large-amplitude stirring in the horizontal direction, stirring on various levels in the vertical direction and impact fusion in different stirring directions, so that the stirring is more sufficiently and uniformly, thereby greatly enhancing the reaction rate and reaction quality.

The invention discloses a method for preparing a self-repaired polymer composite material and belongs to the technical field of self-repairing material preparation. To solve the problems that a conventional self-repaired polymer material is poor in mechanical property, and insufficient reactions can be caused since urea for providing N-H groups is liable to sublimate in the reaction process, the method comprises the following steps: firstly, performing grafting modification on hydroxylation multiwalled carbon nanotubes with urea propyl trimethoxy silane, secondly, performing cross-linking polymerization with dimer acid and diethylenetriamine so as to generate a polymer, and finally enabling the surface grafted carbon nanotubes as a reactant to react with the polymer, thereby obtaining theself-repaired polymer composite material with dynamic hydrogen bonds. The method has the advantages that due to the nano-grade reinforcement properties of the carbon nanotubes, the mechanical properties of the material are improved, and the practicability of the material is improved; due to cross-linking polymerization reactions of the amidate carbon nanotubes, and due to a nano dimension effect of a nano material, reactions can be carried out relatively sufficiently.

The invention relates to a rotary biofilm reactor. The reactor comprises an outer frame and a reaction cavity which are arranged through mutual sleeving; multiple fixed rods are arranged in the reaction cavity, each fixed rod is provided with a biological packing cage, and multiple through holes running through the thickness of the reaction cavity are formed in the reaction cavity; the reactor further comprises a connecting device capable of making the biological packing cages move in all directions. When the device is utilized for conducting sewage treatment, the reaction cavity can be liftedto be separated from the outer frame through a lifting device, then water is injected inside by means of a water inlet, and then the reaction cavity is put into the outer frame through the lifting device; in the putting process, water flows into the reaction cavity through the through holes; then a driving motor is turned on, a stirring paddle rotates, the positions of all the biological packingcages are adjusted, the biological packing cages are uniformly located in the reaction cavity, and then the problem that in the background technology, a reaction of partial water areas is insufficientis avoided.

The invention discloses a negative pressure type purification tower for combustion waste gas treatment of a multi-stage spraying contact reaction. The negative pressure type purification tower comprises a bottom plate, a purification tower, a negative-pressure fan, a driving motor and a circulating water pump. The purification tower is fixedly mounted on the right side of the upper part of the bottom plate, a water storage chamber is arranged at the bottom of the purification tower, and a partition plate is fixedly installed in the middle of the water storage chamber. A chemical adding barrelis installed between the purification tower and an exhaust smoke pipe, and the lower end of the chemical adding barrel is connected with the upper portion of the water storage chamber through a chemical guide pipe. A stirring shaft is rotationally installed in the water storage chamber, and a rotary disc is fixedly connected to the left end of the stirring shaft. According to the negative pressuretype purification tower for combustion waste gas treatment of the multi-stage spraying contact reaction, a first filter plate, a second filter plate, a first connecting pad and a second connecting pad which are symmetrically distributed are arranged in a purification layer, and the purification effect of waste gas and the purity of the waste gas can be improved through the filtering effect of thefilter plates in cooperation with the sponge connecting pads and an activated carbon layer.

The invention discloses a coal gasifier for coal gasification production. The furnace comprises a furnace body, an ash locking bin is arranged at the bottom of the furnace body; a water jacket is sleeved outside the furnace body. In the coal gasifier, the movable frame and the rolling wheels are arranged, therefore, the coal can intermittently fall into the coal separator, and excessive coal carried in the coal separator due to the fact that a large amount of coal enters the furnace body in a short time is avoided; the phenomenon that a large amount of coal cannot fully react after entering the furnace body is avoided; by means of the filter screen, coal gas mingled with residual coal ash enters the gas outlet pipe; the residual coal ash is blocked by the filter screen; coal ash is prevented from entering the air outlet pipe; meanwhile, the filter screen can block water drops mixed in coal gas, so that the gas outlet pipe is prevented from being corroded; and by arranging a brush, after the filter screen is blocked after being used for a long time, a cam is driven by a third motor to rotate, so that the cam drives a pull rod to move back and forth through a movable rod, and then the brush cleans the filter screen.

The invention discloses a flame retardant stirring reactor with a brush. The flame retardant stirring reactor with the brush comprises a reactor body, a stirring device and a motor. A semispherical protruding block is arranged on the inner wall of the reactor body and is uniformly distributed by one circle around the inner wall of the reactor body. The part, where the protruding block is located, of the inner wall and the protruding block are hollow and are communicated with each other. Gas heads are arranged on the surface of the protruding block, and a high-pressure gas source is connected to the part, where the protruding block is located, of the inner wall. The stirring device comprises a stirring shaft and stirring blades connected to the stirring shaft. The stirring blades comprise four pairs of stirring rods connected to the stirring shaft, and the lengths of the stirring rods are different and are sequentially increased from top to bottom. Vertical steel wires are arranged between every two vertically-adjacent stirring rods. A transverse plate is connected to the end of the stirring shaft, and the brush is connected to the transverse plate. According to the reactor, through the coordinative stirring of the stirring shaft and gas flow on the inner wall of the reactor, the effect of evenly stirring materials can be achieved, and materials can be prevented from sticking to the inner wall.

The invention relates to the technical field of reaction kettles, and discloses a polyurethane reaction kettle. The reaction kettle comprises a kettle body, a rotating shaft, a motor and a controller,a cavity is arranged in the kettle body, the motor is arranged in kettle body, the motor and rotating shaft are in connection, the rotating shaft is provided with a material dispersing annular plate,the rotating shaft is provided with stirring blades and scraping plates alternately at intervals, a stirring rod in contact with the bottom of the cavity is arranged at the lower part of the rotatingshaft, the top of the kettle body is provided with a feeding hole positioned above the material dispersing annular plate, a discharge hole is formed in the bottom of the kettle body, a discharge pipeis connected to the discharge hole, the bottom end of the rotating shaft extends into the discharge pipe, the rotating shaft is of a hollow structure, a material passing port for communicating the cavity with the discharge pipe is formed in the lower portion of the rotating shaft, a temperature control mechanism is arranged on the kettle body, a temperature sensor is arranged on the cavity, and the controller is electrically connected to the motor, a feed valve, a discharge valve, the temperature control mechanism and the temperature sensor respectively. The reaction kettle has the advantagesthat reaction raw materials can be fully mixed, the reaction temperature can be automatically controlled, the reaction efficiency is high, and the finished product quality is high.

The invention discloses a synthesis method of a pyrimidine aminoethyl methacrylate compound, and relates to the technical field of lithium batteries. The synthesis method is characterized in that an aminopyrimidine compound and isocyano ethyl methacrylate are subjected to an addition reaction to obtain the pyrimidine aminoethyl methacrylate compound. According to the method, by-products generated by a violent polymerization phenomenon after isocyano ethyl methacrylate is added can be effectively inhibited, and the yield of the product is further improved; and according to the synthesis method, the yield reaches 97.89% or above, and the purity reaches 99.5% or above.

The invention discloses a biological medicine extraction device which comprises a protective base, a purification device is fixedly connected to the top of the protective base, fixing supports are fixedly connected to the bottoms of the outer walls of the two sides of the purification device, and mounting frames are arranged on the tops of the outer walls of the two sides of the purification device; a closing plate is arranged in the middle of the front face of the purification device, and a control panel is fixedly connected to the position, located above the closing plate, of the front face of the purification device. According to the biological medicine extraction device, the temperature is kept constant in the internal purification process, the situation that in the process that internal medicinal materials are stirred through a linkage disc, the medicinal materials adhere together, and consequently the reaction is insufficient is avoided, meanwhile, the internal mixing uniformity is effectively improved, internal purified medicine residues can be conveniently treated, and the practicability is high. And the processing time of medicine liquid purification is shortened, and the collecting mechanism facilitates separation and collection of liquid while medicine residues are collected.

The invention provides a reaction kettle capable of enabling a reaction rate to reach an expected value for dangerous chemical production, relates to the technical field of chemical production, and aims to solve the problems that the reaction rate cannot reach the expected value due to the fact that an existing chemical reaction kettle cannot perform stirring in multiple directions, and the discharging direction cannot be adjusted according to actual conditions, so that the production cost is reduced. Most of the materials are discharged in a fixed manner; the chemical reaction kettle comprises a supporting device, a feeding device and a discharging device, wherein the supporting device is arranged on the feeding device; a reaction kettle main body is fixedly arranged at the top of the supporting device; a discharging device is fixedly arranged at the top of the supporting device; a reaction kettle cover body is fixedly arranged at the top of the reaction kettle main body, and a first stirring device is rotationally arranged in the reaction kettle main body; an adjusting device is fixedly arranged on the outer side of the bottom of the reaction kettle main body; a control device is fixedly arranged at the top of the reaction kettle cover body; a second stirring device is rotationally arranged in the first stirring device; and an auxiliary device is fixedly arranged on the rear side of the discharging device.