90 results about "Heating oil" patented technology

To provide a microwave cooker and a cooking method capable of shortening a cooking time with a simple structure.SOLUTION: The microwave cooking apparatus 1 heats and cooks an object to be cooked in liquid by irradiating the object with microwaves. The microwave cooking device 1 includes an oil tank 20 that stores oil, a heating member 40 that is provided in the oil tank 20 and heats the oil stored in the oil tank 20, and an irradiation member 50 that is disposed inside the oil tank 20 and heats food F in the oil by irradiating the food F with microwaves. The irradiation member 50 includes a microwave irradiation port 52 disposed inside the oil tank 20.SELECTED DRAWING: Figure 2

The application discloses a catalytic combustion heater principle prototype, which comprises an air tank, a methane tank, a mixed gas tank and a combustion chamber, the air tank is connected with the mixed gas tank through a connecting pipeline, the gas outlet of the mixed gas tank is connected with the methane tank and the combustion chamber through two connecting pipelines respectively, the top of the combustion chamber is provided with a mixed gas inlet, and a blower is arranged outside the combustion chamber, the application simulates the operation state of the underground catalytic combustion heater, high-temperature tail gas released by catalytic combustion mixed gas is used for heating oil shale layers, so that the oil shale is pyrolyzed to obtain the purpose of exploiting oil and gas, the simulation reference result of the experimental prototype can be understood as the actual operation result, the application not only reduces the exploitation cost of the oil shale in-situ conversion exploitation, but also improves the oil and gas exploitation efficiency, reduces the exploitation cost and reduces the harm of the toxic tail gas generated by incomplete combustion to animals, plants and the environment caused by direct release of the toxic tail gas into the atmosphere.

The invention discloses an oil shale in-situ conversion and carbon sequestration method by injecting high-temperature carbon dioxide and cooperating with sodium capsules, and belongs to the technical field of fossil energy in-situ exploitation and carbon sequestration. The method comprises the following steps: firstly, determining a target development area and formulating a corresponding development strategy; then, the oil shale reservoir is subjected to fracturing transformation; then, the oil shale reservoir is heated, supercritical carbon dioxide is injected, and displacement recovery is conducted; then, sodium capsule suspension fluid is injected into the oil shale reservoir, and solid-phase geological storage is achieved; and finally, after oil and gas exploitation reaches the economic limit, all the injection wells and the production wells are closed, and final geological storage is completed. According to the method, the carbon dioxide geological sequestration technology and the oil shale in-situ conversion process are deeply fused, the oil shale recovery efficiency is remarkably improved, the geological sequestration of the carbon dioxide is synchronously achieved, and the method has important significance in the fields of carbon emission reduction and fossil energy in-situ exploitation.

This utility model discloses a make-up air structure for a board material purification system, including an insulated box with an air inlet and an air outlet connected end-to-end. A heating oil pipe is located at the bottom of the insulated box, with the air outlet below the heating oil pipe and the air inlet at the top of the insulated box. The heating oil pipe is connected to a thermal oil heater. An exhaust system is connected to the insulated box, and the air inlet and outlet are connected via an air supply pipe. A circulating fan is installed on the air supply pipe, and a make-up air pipe is connected to the air supply pipe. This utility model can supplement fresh air into a board material purification system with a thermal circulation structure to maintain air quality and pressure balance within the insulated box.

The utility model relates to the technical field of dyeing equipment, and discloses an efficient temperature-controlled dyeing equipment, which includes a dyeing tank. An installation frame is slidably arranged on the top surface of the dyeing tank. The installation frame is U-shaped. A flow disturbance structure for making the temperature of the dyeing solution uniform is arranged on one side of the dyeing tank, and a temperature control structure for controlling the temperature of the dyeing solution is arranged on the outer wall surface of the dyeing tank. Through the arrangement of the flow disturbance structure and the temperature control structure, the staff injects heating oil into the jacket, and starts the heating coil through the PLC controller to heat the heating oil and the dyeing tank. The temperature sensor monitors the temperature in real time and feeds it back to the PLC controller after reaching the set range to control the heating coil to stop heating. The motor drives the connecting shaft to rotate, and the fixed shaft slides and reciprocates in the annular groove, thereby pushing the flow disturbance plate to stir the dyeing solution, promoting the mixing of the bottom layer and the upper layer, preventing precipitation, the circulation pump continuously extracts the bottom layer dyeing solution and transports it to the upper layer, enhancing the flow, heating evenly, avoiding temperature difference, and improving the dyeing effect.

The utility model provides a steel base alloy powder waste residue solid-liquid separation device which comprises a horizontal stirring tank, a sealing outer cover and a water storage tank, a variable frequency motor is installed at the right end of the horizontal stirring tank, a rotating shaft is installed in the horizontal stirring tank through a sealing bearing, and a rotating impeller set is installed on the annular side face of the rotating shaft. The horizontal stirring tank is sleeved with the sealing outer cover in a sealed mode, the sealing outer cover is filled with heating oil, and the problems that according to existing steel-based alloy powder waste residue treatment equipment, heating is not uniform enough, the separation efficiency of steel-based alloy powder waste residue grease, inorganic salt and metal powder is affected, and waste heat is inconvenient to recycle are solved; the device is reasonable in structural design, the separation rate of grease, inorganic salt and metal powder in steel-based alloy powder waste residues can be increased, the separation efficiency is good through a uniform heating mode, after the device is used, waste heat of heating oil can be recycled, energy waste is reduced, and the device is convenient to popularize and apply.

The utility model discloses a lubricating oil mixing device, which comprises a tank body, a lubricating oil mixing device and a lubricating oil mixing device, the stirring mechanism comprises a stirring paddle and a motor for driving the stirring paddle to rotate, the stirring paddle is vertically arranged in the tank body, and the stirring paddle is used for stirring an oil agent; the lifting mechanism comprises a connecting ring, a plurality of lifting plates arranged on the inner side of the connecting ring and a first power part for driving the connecting ring to ascend and descend, the radial outer surface of the connecting ring is matched with the inner side of the tank body, the stirring paddle is contained in the connecting ring, and the lifting plates are arranged in the circumferential direction of the connecting ring; and the heating mechanism comprises a heating pipe, the heating pipe is located between the connecting ring and the stirring paddle, and the heating pipe is used for heating an oil agent. According to the utility model, the mixing period can be greatly shortened, and sufficient and uniform mixing is ensured.

The utility model provides a flow channel structure of vacuum pump exhaust filter, including shell and a plurality of filter core in the shell, the bottom of shell is provided with shell recess, the top surface of shell recess is inclined, the bottom of shell is fixed with base, the shell bottom and base are sealed through seal ring, the shell recess is equipped with the shell recess, the top surface of shell recess is equipped with the seal ring, and the seal ring is equipped with the seal ring. The shell is provided with a groove, so that the groove of the shell forms an interlayer in a sealed state, the shell is provided with a water inlet and a water outlet which are communicated with the interlayer, and a bent flow channel is arranged in the interlayer. Compared with the prior art, the runner structure of the vacuum pump exhaust filter has the advantages that the water inlet interlayer is arranged at the bottom of the shell, and the runner is arranged in the interlayer, so that the cooling of the whole shell, the filter element in the shell and exhaust airflow is realized, the filtering effect of the filter element is ensured, and the service life of the filter element is ensured; the flow channel can be used for cooling and heating oil, and when condensable gas is extracted, in order to prevent gas condensation from polluting working oil, the oil generally needs to be heated.

This utility model discloses a rotary RTO device for treating chemical waste gas, relating to the field of RTO equipment. It includes a device body, a top seat mounted on the top of the device body, a detection component installed in the inner cavity of the top seat, a ceramic packing bed installed at the bottom of the inner cavity of the device body, a rotary valve installed at the bottom of the device body, an exhaust pipe mounted on the top side of the top seat, a chimney mounted on the side of the exhaust pipe, a gas delivery component mounted on the outer wall of the device body, a filter screen installed in the inner cavity of the gas delivery component, and a heating oil pipe installed in the inner cavity of the device body. This rotary RTO device for treating chemical waste gas, through the heating oil pipe, can heat the device body during operation. The two oil pipes also allow for the circulation of the heating oil, preheating the chemical waste gas before it enters the gas delivery component, thereby improving the energy utilization rate of the device body during operation.

The utility model relates to the technical field of hot melt adhesive recycling equipment, and discloses a hot melt adhesive waste recycling device which comprises a heating box, a box cover is arranged above the heating box, the heating box is composed of an inner shell and an outer shell, the inner shell is arranged on the inner side of the outer shell, a metal hose is arranged between the heating box and the box cover, and the metal hose is connected with the heating box. A valve is arranged on the surface of the metal hose, and a resistance wire heater is arranged on the outer side face of the heating box. According to the waste material recycling device, waste materials are added into the heating box through the feeding pipe, then the resistance wire heater is started, heating oil between the inner shell and the outer shell is heated, then the heating oil is pumped to the box cover and the main mandrel under the action of the centrifugal pump and finally flows back to the position between the inner shell and the outer shell, and in the flowing process, the waste materials are recycled. The hot melt adhesive is heated in the inner direction and the outer direction, the heat transfer time is shortened, the temperature rising speed of the hot melt adhesive waste is increased, the heating period is effectively shortened, and therefore the production efficiency is improved.

The application belongs to the technical field of power cryogenic cold start engineering and discloses a gearbox oil circuit system, a crane and a gearbox oil circuit system starting method. The gearbox oil circuit system comprises a gearbox body, a gearbox oil circuit, a heating circulating oil circuit and a detection control unit. The heating circulating oil circuit comprises a heating oil tank which is arranged independently of the gearbox body and an electric heater which is arranged in the heating oil tank. The heating oil tank and the gearbox body are communicated through a pipeline. The detection control unit can detect the temperature of the gearbox oil in the gearbox body and control the electric heater and an electric bypass valve. The heating oil tank which is arranged independently of the gearbox body can provide sufficient space to install a larger-power electric heater. The large-power electric heater can ensure that the gearbox oil is rapidly heated to a normal starting temperature under extremely cold conditions, so that the gearbox oil circuit system can also be normally started under extremely cold conditions.

The utility model discloses a difference gilding roller set, belongs to the technical field of gilding rollers, and solves the problems that an existing gilding roller is single in function and low in production efficiency. The gilding roller set comprises mounting plates arranged on the two sides, gilding rollers are rotationally arranged on the mounting plates on the two sides, a plurality of first protruding blocks used for gilding reticulate patterns are arranged on the gilding rollers, and the first protruding blocks are linearly arranged and arranged on the outer surfaces of the gilding rollers in a surrounding mode. A plurality of second protruding blocks used for hot stamping of solid patterns are arranged between every two adjacent rows of first protruding blocks, the second protruding blocks are linearly arranged and arranged on the outer surface of the hot stamping roller in a surrounding mode, a lower pressing roller is arranged above the hot stamping roller, and the two ends of the lower pressing roller are rotationally installed on installation plates on the two sides. A heating cavity is formed in the gold stamping roller, and heating oil is arranged in the heating cavity. According to the difference gold stamping roller set, the same-roller difference gold stamping technology is achieved, and the production efficiency and the percent of pass are improved.

The utility model discloses and provides an MDI formaldehyde-free plywood continuous flat pressing production line sizing system, which comprises a glue spraying device and a feeding device, the glue spraying device comprises a conveying belt and a spray gun mechanism, the feeding device comprises a glue storage tank and a heating oil tank, the output end of the glue storage tank is connected with the spray gun mechanism through one end of a glue loop pipe, and the other end of the glue loop pipe is connected with the heating oil tank. The other end of the glue loop pipe is connected with the first input end of the glue storage tank, a glue applying pump is arranged on the glue loop pipe, a plurality of heating pipes cover the outer side of the glue loop pipe, the output end of the heating oil tank is connected with a heating oil conveying pipe, and the heating oil conveying pipe sequentially passes through the heating pipes and then is connected with the input end of the heating oil tank to form a loop. And a heating oil pump is arranged on the heating oil conveying pipe. The glue storage tank and the heating oil conveying pipe are arranged, a circulating loop is formed through a pipeline, the temperature of glue is maintained through heating oil while glue is supplied, and after paving pauses, the situation that atomization cannot be achieved due to the fact that the glue temperature drops is avoided.

The utility model discloses a kind of oil heater of quick heating, comprising: oil heater main body, expansion assembly and movable assembly, the outside of oil heater main body is provided with multiple heat dissipation ring plates for heat dissipation, expansion assembly includes the extension plate being set in the side of heat dissipation ring plate, the side of heat dissipation ring plate is provided with fixed part, the side of extension plate is provided with reinforcing part, the side of extension plate away from oil heater main body is provided with holding part, movable assembly is set in the bottom of oil heater main body;The utility model is provided with expansion assembly in the side of oil heater main body, multiple extension plates being set in the outside of heat dissipation ring plate in expansion assembly are limited by fixed part, heat dissipation ring plate heat conduction to extension plate with heat loss using extension plate, compared with existing heat dissipation ring plate, the heat transfer area of heat dissipation ring plate is increased by the external equipment of extension plate in the design, and then the transmission of heat is accelerated, the rapid heating of air temperature is realized.

The utility model provides an oil drum assembly for automatic cooking equipment and the automatic cooking equipment, the oil drum assembly comprises an oil drum, the oil drum is provided with a first accommodating cavity, the oil drum is provided with an oil outlet structure, and the first accommodating cavity supplies oil to a cooking utensil through the oil outlet structure; and the heating module is connected with the oil drum and used for heating the oil body in the oil drum. The heating module heats the oil body in the oil drum so that the oil body can be kept in a liquid state, under the action of the heating module, the solidified animal oil is melted into the liquid state, the oil body can be pumped to the cooking utensil, and the situation that supply is interrupted due to oil solidification in the cooking process is avoided.

The invention relates to the technical field of oil and gas exploitation, in particular to an underground in-situ catalytic combustion exploitation method suitable for low-permeability thick oil, super-thick oil and complex lithologic oil reservoirs. Injecting the catalyst precursor into an oil reservoir layer, injecting the chemical self-heat-generation system into the oil reservoir layer dispersed with the catalyst precursor, carrying out redox exothermic reaction, and releasing heat to heat the oil reservoir layer; and air or oxygen is continuously injected into the oil reservoir layer, a self-heat-generation combustion reaction is carried out, and generated gas drives crude oil to the production well. According to the invention, heat released by the in-situ chemical self-heat-generation reaction of the oil reservoir is utilized to drive the catalyst precursor to directly synthesize the composite catalyst with high activity and high stability, the in-situ synthesis catalyst is utilized to reduce the cracking activation energy of crude oil and the ignition temperature of the oil reservoir, and meanwhile, the equipment investment and heat energy loss are reduced through the self-heat-generation reaction; therefore, the exploitation requirements of low-permeability thick oil, super-thick oil and complex lithologic oil reservoirs are met.

This utility model relates to the field of ceramic transfer roller technology, and discloses a ceramic transfer roller device for vacuum evaporation with a circulating coolant cooling system. It includes a base, a mounting frame fixedly connected to the center of the base, a safety film screen roller rotatably connected to the center of the mounting frame, a ceramic transfer roller body disposed on the upper front side of the mounting frame, mounting blocks fixedly connected to the left and right sides of the upper part of the base, a heating oil roller rotatably connected to the opposite side of the mounting blocks, an L-shaped frame fixedly connected to the left rear side of the mounting frame, an installation roller rotatably connected inside the L-shaped frame, and a coating main drum fixedly connected to the outside of the installation roller. In this utility model, through the cooperation of structures such as the handle, connecting block, return spring, telescopic column, limit block, mounting groove, cylinder, support block, installation roller, and coating main drum, the ceramic transfer roller device facilitates the replacement of the substrate film, reducing downtime.

The invention belongs to the technical field of petroleum industry and oil well exploitation, and particularly relates to a vacuum superconducting heater for oil tank temperature rise, which comprises a vacuum superconducting tube, a superconducting medium, an electric heating tube, a connecting tube and a safety and measurement component, an electric heating tube is mounted in the vacuum superconducting tube, and a superconducting medium is filled in the vacuum superconducting tube; a safety and measurement part is mounted on the vacuum superconducting tube; the connecting pipe is used for connecting the vacuum superconducting heater with the oil tank to form a heat transfer channel. The heat dissipation pipe and the superconducting heater in the oil tank are connected in series to form a heat transfer channel. The switch of the electric heating tube is started, the temperature of the electric heating tube rises, and the superconducting medium is heated. When the superconductive medium is heated to a certain temperature, the superconductive medium becomes gaseous from liquid, and the gaseous superconductive medium fills the heat transfer channel. The superconducting medium rapidly transmits heat to the crude oil, so that the temperature of the crude oil is increased, the purposes of automatic heating and unmanned operation are achieved, and potential safety hazards are eliminated.

The invention relates to a device and a method for evaluating the acidolysis performance of a titanium raw material of sulfuric acid process titanium dioxide. Jacket type heat exchange is adopted, and a heat exchange medium adopts external circulation heat conduction oil; and the stable heat supply amount is provided through the stable heating medium temperature and the controllable heat conduction oil flow. In order to eliminate the difference and random fluctuation of the stirring strength and simultaneously consider the problem that the viscosity of a reaction system is relatively large in a high-temperature section of 100-250 DEG C, high-torque mechanical stirring is adopted, the upper part of a stirring paddle adopts a frame type structure to prevent materials from adhering to the wall, the lower part adopts an anchor type structure to enhance the stirring strength, and the stirring rotating speed can be automatically set through a program; and the stirring torque can be automatically displayed. And the viscosity change of the reaction system can be automatically displayed and recorded through the monitored torque. The maximum expansion volume of the acidolysis reaction of the titanium raw material can be monitored by monitoring the liquid level scales of the reaction kettle. The temperature change in the curing process is automatically detected through the system, the highest temperature in the curing process is monitored, and the system automatically sets the curing temperature and the heating oil temperature according to the highest curing temperature for curing. The method can provide a reliable scheme for the acidolysis performance evaluation of the titanium raw material of the sulfuric acid process titanium dioxide.

The utility model discloses a rubber sealing piece hot joint vulcanization mould, including hot joint vulcanization device, the hot joint vulcanization device is composed by support and mounting bracket, the mounting bracket is installed in support upper end middle position, the support middle installation has the moving mechanism, the moving mechanism upper end installation has the moving platform, two lower moulds are installed to the moving platform upper side, the mounting bracket upper end both sides install telescopic link, the telescopic link bottom end installation has the upper die, be provided with the limit mechanism between the upper die both sides and mounting bracket, be provided with heating oil cavity between the upper die and lower mould. The utility model first work position rubber sealing piece processing is completed, and the operator can take out the finished product, and put into the new rubber sealing piece semi -finished product of processing, at this moment, the second work position starts vulcanization processing, and so on cycle reciprocation, realize the efficient operation mode of processing and feeding simultaneously.

The application provides a paint heater for a paint production line, and relates to the field of paint fluid heating. The paint heater for the paint production line comprises a feeding kettle body and a device host, and further comprises a self-flow heating assembly and a constant-temperature back-and-forth pump assembly. The self-flow heating assembly comprises an upper conical cover, a heating oil circulation assembly and a column shell. The upper conical cover is connected with the upper end of the column shell, and the interiors of the upper conical cover and the column shell are hollow structures. A plurality of longitudinally distributed discharge pipes are fixed in the column shell, and the outer walls of the discharge pipes are in the hollow structure of the column shell. The paint heater for the paint production line is provided with the constant-temperature back-and-forth pump assembly. The paint with greatly reduced viscosity after being heated can pass through the feeding elbow pipe, and the self-expanding corrosion-resistant capsule can expand when moving downward and contract when moving upward, so that the pump feeding is realized. Moreover, the self-expanding corrosion-resistant capsule after expansion can transfer the heat of the heating oil outward, so that the paint is prevented from being blocked due to the local temperature reduction and affecting the pump feeding.

The purpose is to promote the evaporation of fuel in the oil, as well as to prevent oil degradation and maintain lubrication performance. [Solution] The lubrication system for an internal combustion engine includes an oil circulation path that includes an oil supply path that supplies oil stored in an oil reservoir to various oil supply sections in the internal combustion engine, and an oil recovery path that recovers the oil supplied to the various oil supply sections back into the oil reservoir, and a heat pump circuit that includes a compressor, a condenser, an expansion valve, and an evaporator in the refrigerant circulation path, wherein the evaporator cools the oil in the oil supply path and the condenser heats the oil in the oil recovery path.

The utility model discloses a heating device for assembling a sealing ring of a drive axle brake, which comprises a steel frame, an oil groove with an open upper end, a mesh partition plate, an electric cabinet, a temperature controller, a temperature sensing head and an electric heating tube, the oil groove is fixedly arranged on the steel frame, hydraulic oil is arranged in the oil groove, the mesh partition plate is arranged in the oil groove, and the electric heating tube is arranged on the front side wall of the oil groove. The electric control box is arranged on the outer side face of the front side wall of the oil tank, the temperature controller is arranged on the front side wall of the electric control box, and the temperature sensing head is arranged at the lower end of the front side wall of the oil tank and connected with the temperature controller. Hydraulic oil in the oil groove is heated through the electric heating pipe, the temperature of the heating oil groove is controlled to be between the upper limit set temperature and the lower limit set temperature all the time through the temperature controller, the sealing ring is placed on the mesh partition plate in the oil groove, the heated hydraulic oil is used for heating and softening the sealing ring, and the softened sealing ring is easy to install. And the sealing ring cannot be damaged by cutting during compression, and the assembly efficiency of the sealing ring is greatly improved.

This invention provides a cleaning method for objects to be cleaned that allows for the removal of large amounts of oil without using large quantities of cleaning solvents, while also considering safety and the global environment, and keeping cleaning costs low. [Solution] The process involves a heating step of heating the object to be cleaned 14 to 100°C or higher by immersing it in heated oil 4 at 100°C or higher; a peeling step of physically removing dirt attached to the object to be cleaned 14 by bringing it into contact with heated water 6 and using the pressure of the generated steam; a solvent cleaning step of removing any remaining oil from the object to be cleaned 14 by bringing it into contact with a cleaning solvent 13 having a boiling point lower than the temperature of the object to be cleaned 14 after the peeling step; and a drying step of evaporating the cleaning solvent 13 attached to the object to be cleaned 14 using the heat of the object to be cleaned 14 while maintaining the temperature of the object to be cleaned 14 higher than the boiling point of the cleaning solvent 13.

The utility model discloses a cottonseed oil separation device and relates to the technical field of cottonseed oil separation. The cottonseed oil separating device comprises a heating oil pressing box, a feeding port is formed in one side of the heating oil pressing box, a discharging port is formed in one side of the heating oil pressing box, a stirring mechanism is rotationally connected into the heating oil pressing box, a first motor is arranged at the top of the heating oil pressing box, and an adjusting assembly is arranged between the first motor and the heating oil pressing box. The adjusting assembly is used for adjusting the size of the space in the heating oil pressing box. According to the cottonseed oil separation device, the adjusting assembly is adopted, the size of the space in the heating oil pressing box is conveniently changed, a first motor is conveniently started to drive a threaded rod to rotate according to the amount of cottonseeds needing to be processed at a time, a sliding plate slides in the heating oil pressing box, and after the sliding plate slides to a proper position, energy consumption of a heating device can be effectively reduced.

The utility model relates to an industrial mixed oil storage and transportation device which comprises a storage tank, a liquid inlet pipe, a liquid discharge pipe, a spray head, an air inlet pipe and a heating piece, the storage tank is made of stainless steel, and the inner side of the storage tank is coated with an anti-rust layer; the liquid inlet pipe is communicated with the top of the storage tank, the liquid discharge pipe is communicated with one end, far away from the liquid inlet pipe, of the storage tank, and one end of the nozzle is communicated with the liquid inlet pipe; one end of the gas inlet pipe is communicated with the top of the storage tank, and the other end of the gas inlet pipe is communicated with the gas supply machine; the heating piece is installed at the bottom of the storage tank. According to the industrial mixed oil storage and transportation device, the storage tank made of stainless steel is adopted, the inner side of the storage tank is coated with the anti-rust layer, and the anti-rust effect is improved; inert gas is conveyed to the storage tank through the gas inlet pipe, contact between oil and oxygen is reduced, and the oxidation process is delayed; the oil is heated through the heating piece, so that the oil is prevented from condensing when encountering cold; the industrial mixed oil storage and transportation device is convenient to use, safe and reliable.

The utility model relates to the technical field of auxiliary tools of powder metallurgy technology, and discloses a device for heating a feeding barrel of a powder metallurgy press, which comprises a double-layer barrel body, a heating mechanism comprises an inner container fixing frame, the inner container fixing frame is fixedly connected inside the double-layer barrel body, and the inner container fixing frame is fixedly connected with the double-layer barrel body. A heating inner container is fixedly connected to the bottom of the inner container fixing frame, an oil inlet is fixedly connected to the outer portion of the heating inner container, and an oil outlet is fixedly connected to the outer portion of the heating inner container. According to the metallurgical powder feeding device, heated oil enters the heating inner container through the oil inlet, metallurgical powder is heated through the heat insulation technology, and therefore the situation that due to the low temperature, the viscosity of the metallurgical powder is large or the metallurgical powder is condensed, and consequently the powder is blocked or blocked or flows unevenly in the feeding process is avoided; and meanwhile, oil in the heating inner container returns to the oil heating device through the oil outlet, so that the temperature of the oil is guaranteed.

The invention discloses a ship maintenance wastewater treatment method, which comprises: carrying out heating oil separation physicochemical treatment on heavy high-oil wastewater generated in a ship maintenance process, heating to dissolve the heavy high-oil wastewater, adding a chemical agent to convert the heavy high-oil wastewater into a separable floccule so as to obtain a first effluent; mixing the first effluent with light low-oil wastewater generated in the ship maintenance process to obtain mixed wastewater; the mixed wastewater is subjected to dosing air flotation treatment, light oil in the mixed wastewater is removed, and second effluent is obtained; the second effluent is introduced into a biochemical treatment system for deep purification treatment, and finally up-to-standard discharge water is obtained. According to the invention, the ship maintenance wastewater is subjected to classified treatment according to heavy high oil and light low oil, and is combined with heating oil separation physicochemical pretreatment, dosing air floatation and biochemical deep purification by adding a dominant microbial agent, so that the stability of the heavy oil is effectively broken, the system blockage and impact risks are remarkably reduced, and the construction and operation cost and the land use demand can be reduced at the same time.

This invention relates to the field of mold temperature control equipment technology, and discloses a high-efficiency and energy-saving mold temperature controller heat exchange device, including a chassis and an operating box at one end. A heating oil tank is fixedly installed on the inner wall of the chassis, and an electric heating component is fixedly installed inside the heating oil tank. A first cleaning mechanism is installed inside the heating oil tank and is coaxially arranged with the heating oil tank. A second cleaning mechanism is movably installed at the eccentric part of the heating oil tank. By setting the first cleaning mechanism, the invention uses a drive mechanism to drive a scraper ring sleeved on the outside of the electric heating component to move. The contraction part of the inner wall of the scraper ring can fit tightly against the outer wall of the electric heating tube, automatically scraping off the oil stains on the tube wall surface without stopping the machine or draining oil. After the oil stains are removed, the heat transfer oil can directly contact the electric heating tube, which greatly improves the heat transfer efficiency, avoids the power waste caused by the insulation layer, and truly achieves high efficiency and energy saving.