25results about "Evaporators with forced circulation" patented technology

The invention relates to the technical field of food processing, in particular to a beverage concentrated solution extraction device and an extraction method. An air inlet of a compressor is communicated with a secondary steam outlet of a separator, and the compressor is used for sucking and compressing secondary steam; an air outlet of the compressor communicates with an inlet of the shell-and-tube heat exchanger shell layer, and the compressor is used for feeding compressed and heated steam into the shell-and-tube heat exchanger shell layer as a heating medium; a vapor-liquid mixture outlet of the shell-and-tube heat exchanger is communicated with an inlet of the separator, and a concentrated solution outlet of the separator is communicated with the storage tank through a pipeline; a condensate water outlet of the shell-and-tube heat exchanger is communicated with a condensate water tank through a pipeline via a flow meter; a suction port of the water ring vacuum pump is communicated with a non-condensable gas exhaust port of the shell-and-tube heat exchanger tube layer through the steam water ring vacuum pump; a suction port of the steam water ring vacuum pump is communicated with the condensate water tank and the storage tank and used for forming negative pressure in the condensate water tank and the storage tank. According to the technical scheme, boiler steam and a large amount of cooling water are not used, environment protection and energy conservation are achieved, and operation is convenient; the problems of high investment cost, large occupied area, complex operation and maintenance and the like of large industrial equipment in the prior art are solved.

The application belongs to the technical field of heat exchanger of chemical equipment, and particularly discloses a forced circulation evaporator with built-in heat exchange, which comprises a heat exchange device, a heating device and an evaporator shell, wherein the heat exchange device is provided with a steam inlet and a condensate outlet; the heating device is arranged outside the heat exchange device and comprises a heater and a feeding cavity; the bottom side of the feeding cavity is provided with an opening and is in gap cooperation with the heater, so that the raw material flows down along the outer sidewall of the heater after passing through the feeding cavity; the evaporator shell is used for containing the heat exchange device and the heating device; an upper cavity is arranged on the heat exchange device and is in communication with the heat exchange device; and the forced circulation device comprises a circulating pump arranged at the bottom of the inner side of the evaporator shell and a circulating pipe, and the circulating pump is in communication with the inside of the heat exchange device through the circulating pipe and is connected to the upper cavity. The heat exchange device is reasonably arranged on the inner side of the evaporator, so that the occupied space is reduced, the heat preservation and insulation are better, and the utilization rate is effectively improved.

The invention provides a three-time air supply methanol-to-hydrogen combustion evaporator which comprises a heat exchanger, a combustion evaporator body, a combustion chamber and a three-time air supply device, the air outlet end of the heat exchanger communicates with the three-time air supply device, and the three-time air supply device is arranged at the top of the combustion chamber. The tertiary air supply device blows flames generated during combustion of the combustion chamber to the combustion evaporator, the heat exchanger is used for preheating normal-temperature air, and the tertiary air supply device supplies air to the combustion chamber. The three-time air supply design is adopted, so that combustion is more complete, the flame temperature distribution is uniform, the heat efficiency is greatly improved, and fuel waste is reduced. Through gas preheating and waste heat recovery, external energy input is reduced, the operation cost of the system is remarkably reduced, and the energy-saving and environment-friendly trend is met. The high-temperature gas guide pipe guides waste heat back to the heat exchanger, heat energy recycling is achieved, the overall heat energy utilization rate is increased, and emission loss is reduced.

The invention discloses a device for preparing plant water and plant honey of sweet sorghum. The device comprises a buffer tank, a primary heater, a first evaporation circulation mechanism, a second evaporation circulation mechanism, a subsequent treatment mechanism, a temporary storage tank, a heat source and a control mechanism. During working, juice is preheated by the buffer tank and the primary heater and then sequentially enters the first evaporation circulation mechanism and the second evaporation circulation mechanism to be subjected to two-stage concentration. Most plant water and intermediate media are separated in the first stage, the intermediate media are further concentrated in the second stage, and a small part of plant water and plant honey are separated. And the plant water is sent to a subsequent treatment mechanism for sterilization and other treatment. The control mechanism detects the Brix value of the plant honey in real time, and if the Brix value reaches the standard, the plant honey is guided to enter a temporary storage tank for storage; and if the concentration does not reach the standard, refluxing to the buffer tank, and re-entering the first evaporation circulating mechanism for re-concentration. The plant honey is prepared while the plant water is prepared, so that the comprehensive utilization rate of resources is increased, the production cost is reduced, and the large-scale production requirement is met.

The present disclosure relates to nuclear chemical, particularly radiochemical, technologies at different stages of the nuclear fuel cycle, such as the production of purified nuclear materials (uranium, zirconium) or the reprocessing of spent nuclear fuel from nuclear power stations, in which extraction processes and operations for purifying nuclear materials are used. An example method, which includes the partial decomposition of nitric acid during continuous evaporation while a solution containing a reducing agent is fed into the bottom part of an evaporator having a circulating bottoms solution, consists in that the process is carried out such that the solution is kept in the bottom part of the evaporator for more than 2 hours under the addition of an aqueous solution of formaldehyde and formic acid (hereinafter “the mixture”) or a solution of formic acid after the process has been started using the mixture.

The application relates to a self-heating multi-effect evaporation device, belonging to the technical field of multi-effect evaporation, wherein a primary-effect medium circulation pipeline is arranged on a flash evaporation unit of a primary effect, the flash evaporation units of the remaining effects are connected in series through pipelines, the medium outlet of a flash evaporation unit of a last effect is connected with the medium inlet of a heat exchange unit of a penultimate effect, the tube passes of multiple heat exchange units are connected in series, the medium outlet of a heat exchange unit of a primary effect is connected with the medium inlet of a flash evaporation unit of a penultimate primary effect through a pipeline, and a cooling circulation pipeline is arranged on the heat exchange unit of the last effect. The application recycles complex high-pollution waste heat as a driving heat source, realizes energy saving and carbon reduction, reduces energy consumption, and reduces operation cost, simultaneously adopts an equivalent flash evaporation self-heating mode, realizes multi-stage serial heating and multi-stage flash evaporation, completely separates waste water heating from flash evaporation, and solves problems such as large steam pipelines and complex pipeline routes.

The invention provides traditional Chinese medicine extraction and concentration equipment, and mainly relates to the technical field of concentration equipment. The traditional Chinese medicine extraction and concentration equipment comprises a heating tank, a plurality of evenly-distributed supporting legs are arranged on the bottom face of the heating tank, a stirring assembly is arranged in the heating tank and used for mixing raw materials in the heating tank, and a feeding pipe is fixedly installed on the upper portion of one side of the heating tank; a steam discharge pipe is fixedly mounted on one side of the top surface of the heating tank, a steam self-circulation assembly is arranged in the heating tank, and the steam self-circulation assembly is used for circulating steam in the heating tank. The device has the beneficial effects that traditional Chinese medicine liquid in the heating tank can be distributed more uniformly through the stirring assembly, local overheating is avoided, the heating effect is improved, meanwhile, steam generated in the heating tank is recycled through the steam circulating assembly, heat carried by the steam returns to a heating system again, and the heating effect is improved. And the utilization efficiency of energy is further improved.

The invention discloses an efficient evaporation system based on flow state conversion, and relates to the technical field of chemical engineering. A feed liquid inlet of the graphite evaporator is provided with a nozzle used for atomizing and dispersing feed liquid to generate 300-800 [mu] m liquid drops, a graphite corrugated plate is arranged below the nozzle and used for impacting the liquid drops to form 50-200 [mu] m micro-drops or 0.1-0.5 mm liquid films, the wave height of the graphite corrugated plate is 3-5 mm, the wave pitch is 8-12 mm, the surface roughness Ra is 6.3-12.5 [mu] m, and the wave inclination angle is 45 + / -5 degrees. The internal structure of the evaporator is optimized, the flowing path of the feed liquid in the evaporator is improved, the'fluid column 'form of the feed liquid is broken, and the'fluid column' form is changed into'liquid drops, liquid lines or liquid films', so that a flash evaporation efficiency mechanism is effectively released, the'feed liquid flash evaporation 'release space is effectively enlarged by strengthening the feed liquid into the'liquid drops, liquid lines or liquid films' form, and the flash evaporation efficiency is improved. Conditions are created for efficient and energy-saving operation of an evaporation system, the material circulation amount is reduced, the flash evaporation area is increased, and the evaporation efficiency is improved.

The present invention relates to an arrangement that is suitable for processing an aqueous metal-containing slurry to separate undesired fractions therefrom, including the units intended for cooling the slurry and simultaneously causing air-induced evaporation of a fraction of the water in the slurry. Further, the invention relates to a method for such processing.

The invention relates to the technical field of heat energy recovery, and particularly discloses a method for fusing a butanol and octanol device steam condensate system and a butyraldehyde hot water preparation system. According to the method, a medium-pressure steam condensate tank in a steam condensate system of a butanol and octanol device is communicated with a medium-pressure steam heater in a hot water system of a butyraldehyde preparation unit through a medium-pressure condensate pump; the liquid outlet end of a hot water buffer tank of a butyraldehyde preparation unit hot water system is communicated with the liquid inlet end of a low-pressure steam condensate tank in a butanol and octanol device steam condensate system through a second adjusting valve, and the temperature of condensate at an outlet of a medium-pressure steam condensate tank is almost close to the temperature of an outlet of a low-pressure steam hot water heater. Waste heat of medium-pressure steam condensate is utilized to the maximum extent, the operation load of a cooler at the top of the low-pressure steam condensate tank is reduced, and the steam usage amount of a low-pressure steam heater and a medium-pressure steam heater of a hot water system of a butyraldehyde preparation unit is saved.

The application discloses a zinc sulfate evaporation device, which comprises an evaporator body and a shell, wherein a cavity is arranged between the shell and the evaporator body, an air inlet pipe is arranged at the upper end of the shell, an air pressure adjusting device is arranged in the cavity, the air pressure adjusting device comprises a moving block, a baffle, a spring, an upper slide rail and a lower slide rail, the moving block slides left and right between the upper slide rail and the lower slide rail, the baffle is used for dividing the cavity into a first cavity and a second cavity, a connecting pipe is arranged at the upper end of the shell, the first cavity and the second cavity are communicated with each other through the connecting pipe, and an air inlet is arranged on the upper and lower surfaces of the upper slide rail. The air pressure adjusting device can dynamically adjust the opening and closing of the air inlet according to the air pressure difference between the first cavity and the second cavity, so that the inflow amount of hot air is controlled, and the effective evaporation of the zinc sulfate liquid is ensured.

The invention provides a corn soaking water evaporation system based on corn starch production, and relates to the technical field of corn starch production equipment. The corn soaking water evaporation system based on corn starch production comprises a bottom frame, a bearing plate is fixed to the upper portion of the bottom frame, a storage tank is installed on one side of the bearing plate, a preheating recycling structure is arranged in the storage tank, a cooling tank is installed on the other side of the bearing plate, and a cooling structure is arranged in the cooling tank. And a multi-effect evaporator is arranged in the middle of the bearing plate. According to the corn soaking water evaporation system based on corn starch production, corn soaking water feed liquid can be conveyed into the multi-effect evaporator through the preheating recovery structure, heating evaporation processing can be conducted on the corn soaking water feed liquid, dirt in the feed liquid can be removed in the process, redundant steam can be cooled through the cooling structure, and the cooling effect is good. The evaporation effect on the feed liquid is improved.

An evaporator is provided for evaporating water from an ambient body of water having a water surface. The evaporator includes a housing that has a proximal end proximate to the water surface, a distal end distal to the water surface, and a housing air flow channel directed toward the water surface. The housing is disposed on a support, such as a float assembly, that positions the housing above the water surface. The evaporator also includes an air flow induction device, preferably an impeller, disposed to direct an air flow stream from the distal end toward the proximal end through the housing air flow channel and toward the water surface so that the air contacts the water. The impeller preferably is made of a fiberglass material. The support preferably includes at least one float assembly air flow channel that receives the air flow stream from the housing and directs it outwardly from the evaporator. Water injection devices such as spray nozzles or atomizing nozzles preferably are disposed in the float assembly channel or channels to inject the water into the air flow stream.

The invention relates to a process for concentrating diluted sulfuric acid (10) which may comprise at least one nitroaromatic compound and / or nitric acid as impurities, comprising: (a) feeding the diluted sulfuric acid (10) into a first stage (1) in which low boilers are removed by evaporation and / or stripping to obtain a first concentrated sulfuric acid (12); (b) optionally feeding the first concentrated sulfuric acid (12) into a second evaporation stage (2) to obtain a second concentrated sulfuric acid (14); (c) feeding the second concentrated sulfuric (14) acid into a third evaporation stage (3) if step (b) is carried out, or feeding the first concentrated sulfuric acid (12) into the third evaporation stage (3) if step (b) is not carried out, to obtain concentrated sulfuric acid (16) as product, wherein an oxidizing agent (17) and / or a precursor of an oxidizing agent is fed into the third evaporation stage (3).

The application belongs to the technical field of evaporators, and discloses a high-efficiency energy-saving circulating evaporator, which comprises a circulating processor, one side of the circulating processor is provided with an air inlet, one side of the air inlet is provided with an evaporator, and one side of the evaporator is provided with a steam mechanism. The high-efficiency energy-saving circulating evaporator is provided with the steam mechanism in the inside of the circulating processor main body, so that the linkage gear is engaged with the first receiving block and the second receiving block, the first receiving block and the second receiving block rotate in different directions, the first receiving block drives the first nozzle to rotate when the first receiving block rotates, the second nozzle rotates in the opposite direction of the first nozzle, but the positions of the first nozzle and the second nozzle correspond, so that the water flow and the steam can be fully aligned and mixed, especially the contact area of the water flow and the steam is prolonged during the rotation process, the steam generation efficiency is further improved, the water flow can be uniformly evaporated, and the working efficiency is improved.

Systems and methods for high total TS spray drying are provided. The systems and methods include: (1) a high concentration evaporation step in addition to conventional evaporation; (2) additional cavitation after high concentration; and (3) heating of the product prior to spray drying. The heating of the product may be accomplished prior to spray drying using cavitation following high concentrations or via the use of a heater (e.g., an ohmic heater) that provides rapid heating, low residence time, and no heating surface.

The invention discloses a polymer condensation kettle and application thereof. The polymer condensation kettle comprises a polymer solution feeding hole, a circulating hot water feeding hole, a steam feeding hole and a stirrer, the upper part of the condensation kettle is a gas phase space, and the circulating hot water feeding hole is formed in the gas phase space. According to the condensation kettle, circulating hot water is introduced from the gas phase space and can be in direct contact with the solvent gas phase, so that the circulating hot water exchanges heat with the solvent gas phase, the water amount carried by the solvent gas phase is reduced, the temperature of the solvent gas phase is reduced, the problem that the temperature of the solvent gas phase is high is solved, in addition, the amount of rubber powder carried by the gas phase is effectively reduced, and the production efficiency is improved. The steam and energy consumption can be obviously reduced, and the polymer loss is reduced.

The invention belongs to the technical field of traditional Chinese medicine concentration, and particularly relates to a traditional Chinese medicine component extraction and separation device which comprises an evaporation mechanism, the evaporation mechanism comprises an evaporation inner tank and an evaporation outer tank arranged on the outer side of the evaporation inner tank in a sleeving mode, and a heating cavity for heating the interior of the evaporation inner tank is formed between the evaporation inner tank and the evaporation outer tank; a tank cover is mounted at the top of the inner evaporation tank, a discharge pipe is fixedly mounted on the tank cover in a penetrating manner, and a separation and collection mechanism for collecting a gasified solvent is connected to the discharge pipe. The four core pain points of heat energy waste, easy wall hanging, uneven concentration and bubble residue of traditional equipment are synchronously solved, comprehensive and breakthrough technical progress is shown in the aspects of improving the production efficiency, reducing the operation cost, guaranteeing the medicine quality and safety and meeting the modern medicine production specifications, and the application prospect is wide. And an efficient and reliable key equipment solution is provided for modern production of traditional Chinese medicines.

The present application relates to the technical field of lithium extraction, and particularly relates to a method and device for extracting lithium carbonate from a lithium mixed solution, which comprises a feeding mechanism, the feeding mechanism comprises a storage box, the storage box is internally filled with lithium carbonate seed crystals, a feeding pipe is fixedly arranged at the lower end of the storage box, one end of the feeding pipe is in communication with the storage box, the other end is in communication with a pipeline, the inner diameter of the feeding pipe gradually increases from the end close to the storage box to the end away from the storage box, a blocking ball for blocking the feeding pipe is arranged in the feeding pipe, a spring is arranged in the storage box, one end of the spring is fixedly connected with the storage box, and the other end is fixedly connected with the blocking ball, and the present application effectively solves the problem that lithium carbonate is deposited on the heating pipe wall in the evaporator, thereby causing the lithium carbonate extraction rate to be not high.

The invention discloses an energy-saving type MVR (mechanical vapor recompression) evaporation device, and relates to the technical field of evaporation, the energy-saving type MVR evaporation device comprises a purification bin, the bottom of the purification bin is fixedly communicated with a heating evaporation device, one side, far away from the purification bin, of the heating evaporation device is provided with a halfpace, and the heating evaporation device is provided with a control cabinet. Through three-stage cooperation of the flow divider (buffer chamber division), the flow guide block (flow guide hole flow guide) and the grid adjusting plate (angle adjustable), the airflow uniformity is improved to 95% or above from 60%, channeling and dead bed are eliminated, and the evaporation efficiency is improved by 25%-30%; and the grid shunting adjusting plate can be driven by a motor to adjust the angle (0-45 degrees), so that the airflow requirements of different materials (such as high-salinity wastewater and high-viscosity syrup) are met, the equipment does not need to be replaced, and the universality is high.

The invention relates to the technical field of devolatilization devices, in particular to a devolatilization preheater which comprises a devolatilization tank, a preheating tank is arranged at the top of the devolatilization tank, a feeding pipe is arranged at the top of the preheating tank, the bottom of the preheating tank is communicated with the top of the devolatilization tank, and a top partition plate and a bottom partition plate are sequentially arranged in the preheating tank in the direction from the feeding pipe to the devolatilization tank. An oil inlet pipe and an oil outlet pipe are arranged on the portion, between the top partition plate and the bottom partition plate, of the preheating tank, a plurality of tubes are evenly distributed on the top partition plate, the top ends of the tubes penetrate out to the upper surface of the top partition plate, the bottom ends of the tubes penetrate out to the lower surface of the bottom partition plate, and a plurality of first guide plates and a plurality of second guide plates are arranged between the top partition plate and the bottom partition plate at intervals. The first flow guide plates and the second flow guide plates are arranged in a staggered mode, the tube nests penetrate through the first flow guide plates and the second flow guide plates, and mixing pieces used for mixing materials are arranged on the tube nests. The device has the effects of uniformly heating materials and reducing material coking.

The present application belongs to the technical field of traditional Chinese medicine concentration equipment, and discloses a wind pressure defoaming type high-efficiency concentrator, which comprises a medicine liquid heating tank used for heating medicine liquid stored in the tank, a wind pressure defoaming structure used for defoaming treatment by introducing air into the medicine liquid heating tank, a combined condensing structure, and a wind cooling assembly inner pipe communicated with the medicine liquid heating tank. Water vapor generated by the medicine liquid heating tank enters the wind cooling assembly inner pipe, exchanges heat with the air introduced into the air supply pipeline, and is cooled to realize condensation of the water vapor. In the present application, the water vapor generated by the medicine liquid heating tank can exchange heat with the air introduced into the air supply pipeline of the wind pressure defoaming structure, so that the water vapor can be condensed while the wind pressure defoaming is performed. Therefore, an additional cooling device is not needed to realize the condensation of the water vapor, and the structure of the medicine liquid concentrator is simplified.

The invention discloses a polyester steam indirect type heat exchange evaporation pure steam compression upgrading system which comprises an evaporation heat exchange system, a compression upgrading system and a cooling system, the evaporation heat exchange system is used for carrying out evaporation heat exchange on polyester steam and existing demineralized water to form low-pressure saturated steam; the evaporation heat exchange system comprises a falling film evaporator and a preheater; the compression upgrading system is used for multi-stage steam compression upgrading, and the compression upgrading system comprises a steam-water separator, a first-stage compressor, an interstage steam-water separator and a second-stage compressor; a cooling system; compared with the prior art, polyester steam latent heat is comprehensively considered, the latent heat and demineralized water are utilized for sufficient heat exchange, the latent heat recovery rate is increased, low-pressure saturated steam is compressed and upgraded by arranging multiple stages of steam-water separators and compressors, the steam capacity is effectively improved, energy is saved, consumption is reduced, and the operation cost is low; the problem that low-pressure steam is needed in the chemical industry can be greatly solved, and the waste heat utilization problem of polyester steam is fully solved.

The invention discloses a self-circulation feed liquid evaporator, and relates to the technical field of chemical pharmaceutical equipment, the self-circulation feed liquid evaporator comprises a heater, the heater heats feed liquid in an inner cavity of the heater to generate feed liquid foam, the heater is communicated with an evaporation chamber through a first pipeline, and the first pipeline is used for spraying the feed liquid foam to the inner wall of the evaporation chamber; the bottom of the evaporation chamber is provided with a second pipeline communicated with the heater, the second pipeline circulates the material liquid stored in the evaporation chamber into the heater, one end, deviating from the heater, of the evaporation chamber is communicated with a condenser, the condenser is used for condensing the evaporated solvent, the condenser is communicated with a liquid collector, and the liquid collector is communicated with the heater. The liquid collector is used for collecting the condensed solvent, so that the technical problems that a rising film foam mixture quickly falls back, the evaporation efficiency is low, a small amount of feed liquid is difficult to concentrate, and the residual feed liquid cannot be treated to be wasted due to short and straight communication between a heater and an evaporation chamber and lack of a large-area evaporation structure in a traditional evaporation system are solved.

The invention discloses an evaporation and concentration system for concentrating materials by utilizing tube bundle drying waste heat, which comprises an absorption tower, the absorption tower utilizes primary water to absorb heat in drying waste gas discharged by a tube bundle dryer to generate waste hot water, and the waste hot water enters a waste hot water flash evaporation system for flash evaporation to generate waste heat flash steam; the falling film evaporation system utilizes waste heat flash steam as a heat source to evaporate and concentrate materials, steam condensate water flowing out of the tube bundle drying machine enters a steam condensate water flash tank to generate condensate flash steam, and the forced circulation evaporation system utilizes the condensate flash steam as a heat source to evaporate and concentrate the materials. Therefore, waste heat in the material drying process of the tube bundle drying machine is recycled, live steam is not needed during normal operation, the live steam is only used as supplementary steam, the live steam needed during evaporation and concentration of thin materials can be effectively reduced, the steam heat utilization rate is increased, the concentration cost is reduced, and the energy consumption is reduced.