37results about "Liquid separation by thermal diffusion" patented technology

The invention discloses a PGMEA rectification and purification system and method, and the system comprises a precipitation kettle which is used for storing a recovered PGMEA solution until solid impurities in the PGMEA solution precipitate in an upper layer separation suspension liquid; a filter; a condenser; and a dehydrating tower. According to the PGMEA rectification purification system and the rectification purification method, a PGMEA product containing high-content metal ions and a mixture are mixed by a dehydrating tower and then transferred into the dehydrating tower to be dehydrated, the dehydrated product is transferred into rectification equipment through a circulating pump, in the tower, PGMEA migrates upwards, and in the rectification tower, the PGMEA product is separated from the mixture; the heavy components and the metal ions return to the main tower through mass transfer separation and are discharged from the tower kettle for re-rectification, a high-concentration product is extracted from the tower top, and the extracted product enters an ion exchange resin bed to further remove the metal ions, so that a PGMEA product with low metal ion content can be obtained.

The invention discloses a low-temperature degreasing system for coating pretreatment, and belongs to the field of purification and reutilization of degreasing fluid for automobile coating pretreatment. The coating pretreatment low-temperature degreasing system comprises a degreasing tank provided with a workpiece inlet end A and a workpiece outlet end B; the heating module is arranged at the bottom of the degreasing tank and is used for heating the degreasing fluid in the degreasing tank; the first hydrodynamic cavitation module is connected with the degreasing tank; the heating demulsification oil-water separator is connected with the degreasing tank; and the second hydrodynamic cavitation module is connected with the heating demulsification oil-water separator. According to the coating pretreatment low-temperature degreasing system and method, the heating demulsification technology and the hydrodynamic cavitation technology are combined for use, and the better degreasing and oil removing effect can be achieved under the condition that the temperature is lower than the temperature of traditional high-temperature heating demulsification; under the condition that the working temperature of the degreasing tank is reduced, the degreasing fluid can keep the same cleaning capacity; therefore, energy consumption is saved, and the degreasing tank liquid replacement period is prolonged.

The invention relates to an oil-water separation device integrated in a distillation tower, and relates to the technical field of coking chemical distillation equipment, the oil-water separation device comprises a distillation tower and a drainage assembly; the distillation tower comprises a tower body, a tower plate, an overflow plate, a reboiling assembly and a condensation assembly; the tower body is vertically arranged; the plurality of tower plates and the plurality of overflow plates are arranged, and the tower plates are horizontally arranged in the tower body; the overflow plate is fixedly arranged on the tower plate; a feeding pipe, a first discharging pipe and a second discharging pipe are arranged on the tower body in a communicating manner; the reboiling assembly is arranged at the bottom of the tower body and is used for heating an oil-water mixture flowing to the bottom of the tower body into steam; the condensation assembly is arranged at the top of the tower body and is used for condensing steam flowing to the top of the tower body; the water drainage assembly is arranged on the tower body and is used for continuously draining water in the distillation tower. The water in the distillation tower can be continuously discharged, so that the distillation and purification efficiency of rich oil is improved.

An oil and sludge collecting tank is disclosed, which can be placed on-site at a food factory or the like, that discharges oil-containing wastewater, and which can collect oil and sludge more efficiently from an upper layer of an oil / water separation tank that pools the oil-containing wastewater. The oil and sludge collecting tank temporarily stores an upper layer of an oil / water separation tank, and collects oil and sludge. The oil and sludge collecting tank comprises: an upper tank TA into which the upper layer of the oil / water separation tank flows through an inflow pipe; at least one or more lower tank TB that has a smaller volume than the upper tank TA, and that is continuously provided from the bottom surface of the upper tank TA; and a lower tank heating section H2 that heats the lower tank TB.

The invention relates to the technical field of grease purification, and provides a kitchen crude grease dehydration and impurity removal system which comprises a grease buffer tank used for receiving and storing a crude grease incoming material; the plurality of heating kettles are arranged in parallel and are used for heating, stirring and settling separation treatment of the crude oil; the conveying pump is connected between the grease buffer tank and the heating kettle and is used for conveying the crude grease from the buffer tank to the heating kettle; the purified oil collecting pipeline is connected with the purified oil outlets of the heating kettles and is used for collecting the purified oil treated by the heating kettles; and the control system is electrically connected with the heating kettle and the conveying pump. By adopting the design of temporary storage and homogenization of the oil buffer tank, heating settling separation of the heating kettle and subsequent clean oil collection, automatic continuous treatment of kitchen crude oil, water and slag separation can be realized, the treatment effect of dehydration and impurity removal and the water and slag separation efficiency are improved, and the problem of high content of kitchen crude oil, water and slag is effectively solved.

The invention discloses a photovoltaic silicon wafer cutting fluid centrifugal filtering and purifying mechanism, and belongs to the technical field of cutting fluid treatment.The photovoltaic silicon wafer cutting fluid centrifugal filtering and purifying mechanism comprises a processing tank, a sealing cover is rotationally arranged at the top of the processing tank, a feeding pipe fixedly penetrates through the top of the sealing cover, and the output end of the feeding pipe is located above a filter screen box; the top of the filter screen box is adsorbed on the inner top surface of the sealing cover through a magnet; the variable-speed motor is mounted in the base below the processing tank, an output shaft of the variable-speed motor is connected with a connecting shaft, a centrifugal barrel is fixed to the top of the connecting shaft and located in the processing tank, a filter screen box is arranged at the top of the centrifugal barrel, and a filter bag is connected to the bottom of the filter screen box. According to the centrifugal filtering and purifying mechanism for the photovoltaic silicon wafer cutting fluid, solid-liquid separation is carried out on cutting waste liquid in a centrifugal mode, oil-water separation can be carried out on the waste liquid after separation, water contained in oil liquid is removed, and oil and water can be purified separately in the follow-up process.

The invention relates to the technical field of propane dehydrogenation raw material drying, in particular to a propane dehydrogenation raw material drying regeneration process which comprises the following steps: a propane dehydrogenation raw material sequentially flows through a front dryer and a rear dryer which are connected in series in a lower-in and upper-out manner; the front dryer is isolated and equalized in pressure; carrying out liquid-phase cyclic regeneration treatment on the bed layer of the front dryer; carrying out gas-phase cyclic regeneration treatment on the bed layer of the front dryer, and fully removing moisture in the filler of the bed layer; carrying out gas phase cooling and liquid phase cooling; and the regeneration process is closed, the front dryer is pressurized, and the front dryer is merged into the rear dryer, so that series operation is realized. In order to achieve the purpose of convenient and energy-saving operation of the on-line dehydration raw material self-regeneration dryer, the two dryers are connected in series for operation, and full dehydration of propane in the later period is guaranteed by detecting the water content of an outlet of the rear dryer in real time and automatically regenerating a drying bed layer through a regeneration system.

The invention relates to a wave-electric double-field oilfield produced liquid treatment device. A box body of the device comprises a dehydration cavity and a transition layer treatment cavity. The first heat radiation coalescence electrode is arranged in the dehydration cavity and is used for promoting coalescence of a dispersed phase in the oil field produced liquid. The first flat net demulsification electrode is arranged in the dehydration cavity and located on the side, away from the installation face, of the first heat radiation coalescence electrode so as to form a first demulsification electric field. The flat net dehydration electrode is arranged in the dehydration cavity and located on the side, away from the first heat radiation coalescence electrode, of the first flat net demulsification electrode so as to form a dehydration electric field. And the transition layer transfer assembly is used for conveying the transition layer formed in the dehydration cavity into the transition layer treatment cavity. The ultrasonic treatment unit is arranged in the transition layer treatment cavity and used for generating an ultrasonic cavitation field to act on the transition layer so as to separate the oil phase in the transition layer. By means of the collaborative design of'heat-electricity 'demulsification dehydration and ultrasonic waves, efficient and continuous dehydration of oil field produced liquid is achieved, and the problem that equipment is shut down frequently due to accumulation of a transition layer is solved.

A device and method for removal of contaminants from refrigerant distributes admitted refrigerant to each of a plurality of reactor collectors, heats each collector to vaporize the refrigerant, whereupon the vaporized refrigerant flows through a filter and then through an outlet. The device includes a housing, a fluid distribution manifold with a plurality of lines, each line directing refrigerant to one of a plurality of collectors, each collector being associated with a line to supply refrigerant, a heating element to heat the collectors and a filter disposed between an outlet and the collectors.

The invention discloses an oil-gas separator for combined standing type petroleum separation in an oil field. The oil-gas separator comprises a separator body, a separation channel and a pretreatment assembly. Vortex flow is formed through the spiral channel, the residence time of liquid in the device body is prolonged, and therefore the gravity separation effect is improved, after the liquid reaches the layering channel, the liquid is divided into the upper-layer oil channel and the lower-layer water channel through the layering plate to achieve flow division of the liquid, light oil is discharged through the liquid outlet pipe on the upper portion, and the oil separation effect is improved. Heavy water and impurities are discharged through a liquid outlet pipe on the lower portion, crude oil is subjected to heating pretreatment, crude oil viscosity is reduced, fluidity is improved, heated water is guided into a heat exchange pipe through a pump body, the process is repeated, the weight of a water tank is increased and reduced, the water tank reaches a T-shaped sliding block through the action of a reset spring, and the water tank slides up and down in a T-shaped sliding groove; while preheating work is completed, the water tank drives the lifting rod to move up and down, so that follow-up work of cleaning the filter plate is facilitated.

A thermal diffusion unit (120, 200) is fluidly connected to a combustion engine (100) via a flue line (130, 132). The thermal diffusion unit (120, 200) has a plurality of plates (212, 214) assembled in a parallel configuration, including a pair of heating plates (212) having a heating fluid gap (226) extending therebetween and a pair of cooling plates (214) having a cooling fluid gap (236) extending therebetween. A diffusion sheet (240) is positioned between the pair of heating plates (212) and the pair of cooling plates (214), such that the diffusion sheet (240) interfaces on a first side with one of the heating plates (212) and interfaces on an opposite side with one of the cooling plates (214). The diffusion sheet (240) includes a plurality of interconnected thermal diffusion cells (310) arranged in a repeating pattern.

An embodiment of the disclosed technology provides a microfluidic cooling device including a microfluidic pathway and a thermoelectric cooling element. The microfluidic pathway can include an inlet to receive a sample at a first temperature and an outlet to output a first phase and second phase of the sample at a second temperature. The sample can include a first liquid, a second liquid, and a plurality of soluble particles. The first phase can include the first liquid and a portion of the soluble particles that is more soluble in the first liquid than second liquid. The second phase can include the second liquid and a portion of the soluble particles that more soluble in the second liquid than first liquid. The thermoelectric cooling element can be in thermal communication with the microfluidic pathway and can transition the sample from the first temperature to the second temperature.

The present invention relates to the technical field of centrifuges. Disclosed is a centrifugal oil-water separation apparatus, comprising a housing and a centrifugal chamber, wherein the centrifugal chamber is arranged inside the housing; a refrigeration module is disposed at an upper end of an outer side of the housing and a microwave module is disposed at a lower lateral side of the housing, or the microwave module is disposed on the upper end and the refrigeration module is disposed at the lower lateral side; a cold end at the bottom of the refrigeration module is in contact with the centrifugal chamber; a microwave emission module is disposed inside the microwave module; the refrigeration module is in contact with the centrifugal chamber to cool same, such that an oil-water mixture inside is solidified; and when the centrifugal chamber is accelerated to a separation speed by means of an electric motor, microwaves are emitted by means of the microwave emission module in the microwave module, and in this case, the centrifugal chamber is in a rotating state, such that the entire centrifugal chamber can be uniformly affected by microwave heating, and the solidified oil-water mixture inside is molten, thereby avoiding incomplete separation caused by an oil liquid inside the centrifugal chamber emulsifying due to a water pressure and under a shearing force when an initial rotation speed is not reached.

An oil and sludge collecting tank, which is placed on-site at a food factory or the like that discharges oil-containing wastewater, and which can collect oil and sludge more efficiently from the upper layer of the oil / water separation tank that pools the oil-containing wastewater, can be provided. The oil and sludge collecting tank T temporarily stores an upper layer of an oil / water separation tank, and collects oil and sludge. The oil and sludge collecting tank T comprises: an upper tank TA into which the upper layer of the oil / water separation tank flows through an inflow pipe; at least one or more lower tank TB that has a smaller volume than the upper tank TA, and that is continuously provided from the bottom surface of the upper tank TA; and a lower tank heating section H2 that heats the lower tank TB.

The invention discloses a novel single-phase 400KV power transformer and a using method thereof, and relates to the technical field of power transformers, the novel single-phase 400KV power transformer comprises a single-phase power transformer, the single-phase power transformer comprises an oil tank and a high-voltage bushing, and high-voltage side pieces are arranged on the two sides of the high-voltage bushing. During use, when the miniature gas chromatograph detects that the content of gas released in the insulating oil exceeds the standard, the oil pump is started, impurities in the insulating oil are removed through cooperation between the coarse filter plate and the fine filter plate, the insulating oil with the impurities filtered is conveyed into the negative pressure tank, the negative pressure pump is started, and the insulating oil is discharged from the negative pressure tank. The inside of the negative pressure tank is in a micro-negative pressure state, water escapes from the oil, impurities and water in the insulating oil are filtered, then the release amount of gas in the insulating oil is detected through the micro gas chromatograph, whether the transformer operates normally or not is judged, and the filtering assembly is matched with the cooling assembly.

The present application relates to an oil-water separation device integrated into a distillation tower, and relates to the technical field of coking chemical distillation equipment. The device comprises a distillation tower and a drainage assembly. The distillation tower comprises a tower body, a tower plate, an overflow plate, a reboiler assembly, and a condenser assembly. The tower body is vertically arranged. A plurality of tower plates and overflow plates are provided, and the tower plates are horizontally arranged within the tower body. The overflow plate is fixedly provided on the tower plate. A feed pipe, a first discharge pipe, and a second discharge pipe are connected and provided on the tower body. The reboiler assembly is provided at the bottom of the tower body and is used to heat the oil-water mixture flowing to the bottom of the tower body into steam. The condenser assembly is provided at the top of the tower body and is used to condense the steam flowing to the top of the tower body. The drainage assembly is provided on the tower body and is used to continuously drain water from the distillation tower. The present application can continuously drain water from the distillation tower, thereby improving the efficiency of oil-rich distillation purification.

A method and a system for purification of oil, wherein the method comprises the steps of: -adding to a contaminated oil provided in a preparation tank a chemical booster for boosting capturing of impurities and / or a separation of phases in the contaminated oil; -waiting for allowing different phases to be separated; -pumping content out from the preparation tank through a fluid connection; -sensing at least one property of the content in the fluid connection; -controlling a valve provided in the fluid connection to transfer the content to a next step in the purification process or to another destination in dependence of the sensed at least one property.

This invention provides a device and control method for removing moisture from transformer oil-paper insulation, mainly relating to the field of transformer technology. It includes an insulating oil tank connected to a dewatering tank, which in turn is connected to a condensation tank. The condensation tank contains condensing pipes and is connected to a collection tank. By using condensing pipes, water vapor evaporates upon heating and enters the pipes for condensation. The condensed water vapor forms water droplets, which are then collected in the collection tank. This prevents the dewatering tank from bursting due to increased internal pressure caused by water vapor evaporation.

The present invenon relates to a device (1) for removing FOGs from waste water, the device (1) comprising: a waste water inlet 16, 18 that is configured to receive waste water contaminated by FOGs into the device; a separator chamber (9) that is configured to receive waste water from the inlet 16, 18 and to separate FOGs from the waste water under the acon of gravity; a waste water outlet 26a, 26b that is configured to emit waste water that has passed through the separator chamber (9) from the device (1); a FOG outlet (27) that is configured to emit FOGs that have been separated from the waste water in the separator chamber 9 from the separator chamber (9); and a heang system located in the separator chamber (9), the heang system comprising a heater (36) that is configured to heat waste water in the separator chamber (9), and a housing (37) that at least parally surrounds the heater (36).

The invention relates to the technical field of oil-water separation, in particular to a lubricating oil dehydration device for a gas lubricating oil station, which comprises a dehydration shell, a liquid inlet pipe is fixedly communicated with the upper part of one side of the dehydration shell, a liquid discharge pipe is fixedly communicated with the lower part of the other side of the dehydration shell, and a stop valve is fixedly mounted on the liquid discharge pipe. Mounting strips are fixedly mounted below the two opposite sides of the dewatering shell, and a plurality of heating rods are fixedly mounted between the two mounting strips; water is boiled and gathered on the liquid level through heating of lubricating oil, the multiple movable ropes on the liquid level of the lubricating oil move to make contact with an oil film and enable the oil film to be broken, and water vapor is subjected to adsorption collection and liquefaction collection through hydrophilic oleophobic groups on the surfaces of the movable ropes and a liquefaction separation mechanism on a conical cover; the processing loss of the lubricating oil is reduced, and the dehydration effect of the lubricating oil is ensured.

The invention relates to the technical field of characteristic industrial oil treatment, in particular to a special industrial oil life-prolonging filtering and washing replacement device which is characterized in that a floating heating device is installed in a storage tank in a floating mode, and a circulating oil spraying device is arranged on the outer side of the floating heating device and fixedly connected with the top of the storage tank; the floating heating device comprises a floating plate, a spiral metal pipe, a heating core, a hollow pipe and a wire, a side block is fixedly installed at the edge position of the floating plate, the circulating oil spraying device is fixedly installed at the position of the side block, and the circulating oil spraying device comprises an insertion pipe, a circulating U-shaped bent pipe, a circulating pump, a spraying ring body, a flexible metal pipe and a balance weight oil suction ball. The floating heating device transfers heat into oil liquid, the interior of the oil liquid is heated, the oil liquid can be heated from the side face and the interior of the oil liquid at the same time, the temperature rising speed of the oil liquid is increased, the oil-water separation speed is increased, the oil liquid is made to be in a spraying state, the contact face of the oil liquid and air is increased through the oil liquid spraying state, water in the oil liquid is dissipated quickly, and the oil liquid is heated. The oil-water separation speed is accelerated.

The invention belongs to but is not limited to the technical field of separation equipment, and discloses an oil-water separation device for an experiment produced liquid for improving the recovery efficiency through tight oil chemical flooding. Comprising an output liquid collecting barrel, a liquid inlet pipe is arranged at the top of the output liquid collecting barrel, and a first electromagnetic valve and a first electronic flowmeter are arranged on the liquid inlet pipe; an electric heating plate is arranged in the barrel wall of the output liquid collecting barrel and is used for heating the output liquid; an ultrasonic transducer is arranged at the bottom of the output liquid collecting barrel and generates ultrasonic waves to vibrate and demulsify the output liquid; a liquid outlet is formed in one side of the bottom of the collecting barrel, and an optical sensor, a second electromagnetic valve and a second electronic flowmeter are sequentially arranged at the liquid outlet. The method is convenient to operate, visual in result, uniform in measurement standard and beneficial to transverse comparison of different chemical flooding system results. Meanwhile, heating and ultrasonic vibration are used, and the demulsification efficiency and the demulsification effect are improved through the synergistic effect.

The present invention discloses a waste sulfuric acid nitro toluene compound separation device, which solves the problems that when the existing device uses a liquid ring vacuum pump to press the nitro compound into the dispersion tube, the dilute nitric acid doped in the waste sulfuric acid in the waste acid tank is easily pumped into the dispersion tube, and there is no countercurrent contact mechanism when the nitro compound is separated from the waste sulfuric acid, affecting the separation and purification efficiency of the nitro compound. The device includes a device support, a waste acid treatment tank, a device driving mechanism, and an auxiliary separation mechanism. The device support includes a tank support and an auxiliary support. The auxiliary separation mechanism includes a separation linkage rod, an adjustable tray section, and an auxiliary separation section. In the present invention, an auxiliary separation mechanism and a device driving mechanism are provided. The auxiliary separation mechanism is composed of a separation linkage rod, an adjustable tray section, and an auxiliary separation section. The setting of the adjustable tray section enables the waste sulfuric acid and the nitro compound to have effective countercurrent contact, realizing the rapid separation of the waste sulfuric acid and the nitro toluene compound.

The invention discloses an environment-friendly dewatering device for lubricating oil processing, and particularly relates to the technical field of lubricating oil processing, the environment-friendly dewatering device comprises a dewatering barrel, a cavity is formed in the dewatering barrel, a heating pipe is arranged in the cavity, a barrel cover is arranged at the top of the dewatering barrel, and a plurality of sets of scrapers and stirring paddles are arranged in the dewatering barrel; by arranging the heating structure with the heating pipe and the cavity water heating synergic, the heating efficiency and uniformity are effectively improved, the heating pipe directly heats the dewatering barrel, heat can be rapidly transferred to lubricating oil due to the good heat conductivity of the iron dewatering barrel, meanwhile, water is introduced into the cavity and heated, the heating effect is further enhanced through heat conduction of the water, and the heating effect is improved. The problem that the local temperature is too high or too low possibly caused by single heating is avoided through the double heating mode, the situation that the dehydration efficiency is low due to uneven heating is reduced, the dehydration time is greatly shortened, and the overall production efficiency is improved.

The application relates to the field of garbage recycling treatment, and provides a kitchen waste oil absorption device, which comprises a tank body, an electric pump, an oil suction pipe and an oil suction gun; the electric pump is installed on the tank body, and the oil suction pipe is communicated with the tank body through the electric pump; the oil suction gun is communicated with the electric pump through the oil suction pipe; wherein the tank body comprises an outer tank, an inner tank, a cover body, an inner pressure part, a driving part and a sensing part; the inner tank for storing sewage is connected with the outer tank for storing waste oil, the inner tank is located in the outer tank, the height of the inner tank is lower than that of the outer tank, and a space for containing oil exists between the outer wall of the inner tank and the inner wall of the outer tank; the oil suction pipe penetrates through the outer tank and is communicated with the inner tank. The application has the effects of conveniently absorbing waste oil and providing oil-water separation.

The present invention is applicable to the technical field of kitchen waste treatment, and provides a community kitchen waste bag breaking and reducing machine, including a machine base, and also including: a solid-liquid separation component, a pedal turning component, a liquid collection box and a hopper, wherein the liquid collection box is rotatably connected to the machine base, and the liquid collection box is connected to the oil-water separation component through a hose, the solid-liquid separation component is used to tear open the garbage bag in the hopper, and the solid-liquid separation component performs solid-liquid separation on the garbage by filtering, and the pedal turning component is used to drive the hopper to turn over, and the hopper pours the solid garbage out of the hopper by turning over. Water is injected into the oil-water filter box, and the water depth is above the bottom of the water-blocking sleeve, and the garbage bag is placed in the hopper. After the solid-liquid separation component tears the garbage bag, the garbage is filtered and processed. The present invention realizes bag breaking, sorting, solid-liquid separation, pedal turning, and oil-water separation for bagged kitchen waste, thereby providing convenience for reducing kitchen waste at the source.

Disclosed is a thermodiffusion device for a liquid comprising at least one diffusing species, the device for separating the liquid into a fraction that is more concentrated with the diffusing species, and a fraction that is less concentrated with the diffusing species, the device comprising: two opposing walls, each comprised of a thermally conductive material, one of the walls being at a higher temperature than the other of the walls in use; a plurality of sidewalls located between the two walls and arranged to form a plurality of channels through which the liquid flows in use, the plurality of sidewalls each comprised of a material that has a thermal conductivity that is lower than the thermal conductivity of each of the two opposing walls; an inlet configured to allow the liquid to flow into the plurality of channels in use; and at least two outlets configured to collect the more concentrated fraction and the less concentrated fraction.

A thermal diffusion unit (120, 200) is fluidly connected to a combustion engine (100) via a flue line (130, 132). The thermal diffusion unit (120, 200) has a plurality of plates (212, 214) assembled in a parallel configuration, including a pair of heating plates (212) having a heating fluid gap (226) extending therebetween and a pair of cooling plates (214) having a cooling fluid gap (236) extending therebetween. A diffusion sheet (240) is positioned between the pair of heating plates (212) and the pair of cooling plates (214), such that the diffusion sheet (240) interfaces on a first side with one of the heating plates (212) and interfaces on an opposite side with one of the cooling plates (214). The diffusion sheet (240) includes a plurality of interconnected thermal diffusion cells (310) arranged in a repeating pattern.

An oil and sludge collecting tank, which is placed on-site at a food factory or the like that discharges oil-containing wastewater, and which can collect oil and sludge more efficiently from the upper layer of the oil / water separation tank that pools the oil-containing wastewater, can be provided. The oil and sludge collecting tank T temporarily stores an upper layer of an oil / water separation tank, and collects oil and sludge. The oil and sludge collecting tank T comprises: an upper tank TA into which the upper layer of the oil / water separation tank flows through an inflow pipe; at least one or more lower tank TB that has a smaller volume than the upper tank TA, and that is continuously provided from the bottom surface of the upper tank TA; and a lower tank heating section H2 that heats the lower tank TB.

The invention belongs to the field of lubricating oil production, and particularly relates to a lubricating oil production mixing and blending device which comprises a first tank body used for dehydrating base oil and a second tank body used for mixing the base oil and additives, and the outer wall of the first tank body is communicated with a first feeding pipe, a first discharging pipe and an exhaust pipe. A transparent scale groove is fixedly arranged; the outer wall of the second tank body is communicated with a third feeding pipe, a second discharging pipe and a second feeding pipe communicated with the first discharging pipe; the base oil in the first tank body is vacuumized and heated, so that water absorbed due to long-term placement in the base oil can be separated and removed, the quality of the base oil before the lubricating oil is blended is improved, and the pollution of the water to the lubricating oil is reduced.