10results about How to "Speed up distillation" patented technology

The invention relates to the technical field of NMP (N-Methyl Pyrrolidone) purification, in particular to NMP multi-stage rectification purification equipment and process. A first cavity is formed in a shell at the top of the third-stage reaction kettle, a steam inlet hole communicated with the first cavity is formed in the inner wall of the top of the third-stage reaction kettle, refrigeration equipment is arranged in the first cavity, and a discharging pipe communicated with the first cavity is mounted on the third-stage reaction kettle; the distillation device is used for purifying and distilling an NMP solution into the first cavity and flowing out of the discharging pipe to obtain purified NMP; a heating mechanism is arranged in the third-stage reaction kettle; the third-stage reaction kettle is communicated with a feeding pipe, and a waste material outlet is formed in the third-stage reaction kettle. According to the device, after NMP is obtained through third-stage distillation and purification, the internal structure can be controlled through an external motor to efficiently clean internal residual waste materials, and the residual waste materials are conveyed to the outside, so that the use efficiency of the device is improved.

The invention discloses a safe toluene recovery device for p-tolyl isocyanate production. The safe toluene recovery device comprises a bottom plate, a recovery assembly, a solution mixing assembly and a cleaning assembly. According to the safe toluene recovery device for p-tolyl isocyanate production, the liquid carrying box can reciprocate in the vertical direction, so that the liquid carrying box carries a stock solution on the lower middle portion to the upper portion, meanwhile, the circulating liquid pipe rotates to drive the L-shaped stirring rod to rotate, the stock solution located at the bottom passes through the water pump and the circulating liquid pipe, the stock solution is fed into the liquid collecting box and the branch pipe, and then the stock solution is recycled. And the toluene gas is uniformly scattered on the filter plate through the liquid discharge holes in the branch pipes, so that the stock solution is heated more uniformly, the distillation speed of the stock solution is increased, and the distilled toluene gas is collected. Besides, an annular sliding rail reciprocates left and right to drive a mounting plate and a cleaning brush to move, so that the cleaning brush cleans the filter plate, the filtering effect of the filter plate is improved, the purity of the stock solution is higher, and the recycling effect of the methylbenzene gas is further improved.

The present invention provides a Kjeldahl nitrogen determination high-efficiency distillation system, a Kjeldahl nitrogen determination instrument and a distillation method, and belongs to the technical field of Kjeldahl nitrogen determination. The present invention proposes for the first time the strategies and corresponding structures of "steady-state flash" (i.e. Steady-Flash) and "green condensation". The superheated steam for heating the reagent in the digestive tube is two streams, which are heated at the top and bottom of the reagent at the same time. The splash-proof bottle has high temperature and low pressure without blind-end pipelines. The condenser relies on air cooling to dissipate heat, and low temperature and low pressure are achieved through "green technology"; the high-temperature reagent in the digestive tube is lifted by steam, and the boiling point is reduced after decompression, and the "flash evaporation" phenomenon continues to occur. While the reagent is stably and accurately distilled, the reagent distillation speed is accelerated, the distillation time is shortened, and the distillation efficiency is improved.

This invention discloses a distillation apparatus for processing high-QI needle coke feedstock, relating to the field of high-QI needle coke feedstock processing technology. It includes a heating furnace, a vacuum distillation column, and a fractionation column. The heating furnace is connected to the lower end of the vacuum distillation column. The top of the vacuum distillation column is a waste oil discharge end, the middle section is a mid-section oil collection system, and the lower end is a heavy phase pitch collection end. The waste oil discharge end is connected to a top vacuum pump. The mid-section oil collection system is connected to the lower end of the fractionation column. The fractionation column, from top to bottom, consists of a first fraction collection system, a second fraction collection system, and a third fraction collection system. This invention pre-treats needle coke feedstock by combining vacuum distillation and fractionation, significantly increasing the yield of needle coke feedstock.

The invention belongs to the technical field of distillation preparation, and particularly relates to a trixylyl phosphate preparation distillation device which comprises a bottom plate, a slag removal box is fixedly mounted at the top of the bottom plate, a tank body is fixedly mounted at the top of the slag removal box, a liquid inlet pipe opening is fixedly mounted at the top of the tank body, and a liquid storage box is fixedly mounted at the bottom of the slag removal box. A distillation cylinder is arranged in the tank body; the stirring plate is driven by the motor to stir stock solution, on one hand, the distillation speed of the stock solution can be increased, on the other hand, precipitates generated by distillation of the stock solution can be prevented from being attached to the inner wall of the distillation cylinder, meanwhile, the stirring plate extrudes the circular plate to move downwards, and the circular plate vibrates at the bottom of the distillation cylinder through the elastic force of the reset spring; reaction precipitates in the stock solution are prevented from falling on the top of the circular plate and being crystallized at the top of the circular plate due to an adsorption relationship with the circular plate, and the heat transfer speed in the stock solution can be increased by vibrating the stock solution, so that the distillation speed is increased.

The purification equipment comprises a box body, a distillation box is arranged on the inner side of the box body, an adjusting opening is formed in the upper portion of the distillation box, the outer side of the adjusting opening is connected with the box body, the adjusting opening slides in the box body, a feeding opening is formed in the upper portion of the box body, the outer side of the feeding opening is connected with the box body, the feeding opening slides in the box body, and the inner side of the adjusting opening is connected with a first pipeline; the adjusting opening slides outside the first pipeline, the lower portion of the second bifurcated pipe is connected with a second pipeline, and the lower portion of the second pipeline penetrates through the box body to be connected with an ethanol collecting box. Ethanol is heated and purified, ethanol with the mass fraction of 92.4% can be obtained through a rectification method, separation is conducted through the boiling point difference of ethanol and water in rectification, absolute ethyl alcohol is obtained through an azeotropic rectification method, and ethanol purification is achieved. Ethanol gas flowing through the first pipeline enters the two condensers in a split-flow mode through the first bifurcated pipe, the ethanol gas is subjected to split-flow condensation, the condensation effect is better, and the condensation speed is high.

The utility model provides a liquor processing, distilling and collecting device which comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a distilling barrel, the bottom surface of the bottom plate is fixedly connected with a driving motor, the output end of the driving motor is fixedly connected with a rotating rod, the outer surface of the rotating rod is fixedly connected with a plurality of stirring rods, and the stirring rods are fixedly connected with the bottom plate. A first heat preservation layer is arranged on the inner wall of the distillation barrel, the upper surface of the distillation barrel is fixedly communicated with a water outlet pipe, the upper surface of the distillation barrel and the outer surface of the water outlet pipe are jointly and fixedly connected with a first sealing ring, and the outer surface of the water outlet pipe is fixedly communicated with three first water conveying pipes. According to the distillation and collection device for white spirit processing, the rotating rod is driven by the driving motor to rotate, then the rotating rod drives the stirring rod to rotate, white spirit in the distillation barrel is stirred, the distillation efficiency is improved during white spirit distillation, distilled white spirit flows into the three water storage barrels through the three first water conveying pipes, and more white spirit is collected at a time; the distillation efficiency is further improved.

The utility model relates to the technical field of distillation devices, and discloses a reduced pressure distillation device for preparing high-purity p-fluorobenzoyl chloride, which comprises a base support frame, a control panel is fixedly mounted at the top of the base support frame, a mounting groove is formed in the top of the base support frame, and the control panel is fixedly mounted in the mounting groove. A distillation retort body is fixedly mounted in the mounting groove, a feeding pipeline is arranged at the top of the distillation retort body in a communicating manner, and a discharging pipeline is arranged on the outer wall of the distillation retort body in a communicating manner; the distillation cooling assemblies are arranged inside and outside the distillation retort body, fluorobenzoyl chloride is conveyed into the distillation retort body through a feeding pipeline by arranging a motor, the motor drives a stirring rod to enable a mounting lantern ring to drive stirring blades to stir the fluorobenzoyl chloride, heating and rapid distillation are facilitated, and when gas in the distillation retort body is too much, the gas in the distillation retort body is not too much. When the piston rod is upward, the hot air storage ball starts to be expanded for reminding, so that the effect of accelerating the distillation speed is achieved.

The invention discloses a water yield adjustable multi-effect distilled water machine for veterinary drug manufacturing, and relates to the technical field of veterinary drug manufacturing, in particular to a water yield adjustable multi-effect distilled water machine for veterinary drug manufacturing, which comprises a first boiler, one end of the outer wall of the first boiler is provided with a first treatment cavity, and the other end of the outer wall of the first boiler is provided with a second treatment cavity; the bottom of the first treatment cavity is connected to the top of the second boiler through a pipeline. According to the multi-effect distilled water machine capable of adjusting the water yield and used for veterinary drug manufacturing, the drainage pipe is combined with the pipeline with the flow meter, the quantity control disc is arranged, the flow meter is used for preliminarily monitoring the flow, a pressure sensor at the bottom of the quantity control disc senses the weight of distilled water in real time, and the distilled water extraction quantity can be accurately controlled through a dual monitoring and control mechanism; the metal seal is uniformly heated in the middle of raw water, so that the formation of a local high-temperature area is avoided, heat can be uniformly distributed in the main body part of water, the heat utilization efficiency is improved, and the scale generation condition is reduced by adopting the uniform heating mode.

The invention relates to the technical field of resin distillation, in particular to an automatic waste discharge resin distillation reaction kettle. The invention provides a resin distillation reaction kettle capable of automatically discharging waste, which can discharge bubbles generated in a resin distillation process and improve the distillation purity of resin. A resin distillation reaction kettle capable of automatically discharging waste comprises a plurality of supporting seats, a reaction barrel, a heating jacket and the like, the reaction barrel is connected among the supporting seats, and the heating jacket is connected to the outer side of the reaction barrel. Bubbles generated on the surface of a pine resin raw material are introduced into the mounting cylinder through the guide plate, the pine resin raw material rotates and drives the driving frame to rotate, so that the auger rotates, the auger conveys the bubbles to a liquid inlet pipe of the waste discharge pump, the waste discharge pump is started, and the bubbles enter the waste discharge pump from the liquid inlet pipe to be discharged; the effects of discharging the bubbles generated in the resin distillation process and improving the distillation purity of the resin are achieved.