45results about How to "Avoid coking" patented technology

The utility model belongs to the technical field of ash processing, and discloses an ash bucket device and a boiler system.The ash bucket device comprises an ash bucket body, the ash bucket body comprises an inner shell, an outer shell and a guide plate, the inner shell is provided with a conveying channel, ash can flow through the conveying channel, the outer shell is arranged on the side, away from the conveying channel, of the inner shell in a sleeving mode, and the outer shell and the inner shell are arranged at intervals; a cavity is formed between the outer shell and the inner shell and surrounds the inner shell, air circulates in the cavity and is used for absorbing heat of ash in the conveying channel, the guide plate is arranged in the cavity and spirally surrounds the inner shell in the direction parallel to the circulating direction of the ash in the conveying channel, and the air can flow along the guide plate. According to the ash hopper device, ash in the conveying channel can be uniformly cooled, and the coking probability of the ash in the conveying process can be greatly reduced.

The utility model relates to the technical field of waste heat recovery, in particular to a coke oven flue gas waste heat efficient utilization device which comprises a water tank, a filter tank and a smoke return pipe, a water inlet pipe and a steam pipe are arranged at the upper end of the water tank, a flue is arranged in the water tank, heat exchange fins distributed in an array mode are installed on the inner wall of the flue, and the filter tank is arranged in the water tank. A second smoke inlet pipe is installed at one side end of the filter box, the tail end of the second smoke inlet pipe is installed at the side end of the water tank, the second smoke inlet pipe is communicated with the flue, an installation opening is formed in the front end of the filter box, a cover plate is installed at the position, located at the installation opening, of the front end of the filter box, and a filter plate is installed at the rear end of the cover plate. A dust scraping plate is mounted at the tail end of the filter plate, the smoke return pipe is mounted at the lower end of the water tank and communicated with the flue, and a recovery pipe is mounted at the tail end of the smoke return pipe. The coke oven flue gas waste heat utilization device has the advantages of being capable of filtering dust, efficiently utilizing coke oven flue gas waste heat and preventing waste of flue gas heat.

The invention provides a method for synthesizing 6-aminocapronitrile from caprolactam. The method comprises the following steps: a gasification device is sequentially provided with a uniform distribution part, an efficient dispersion part, a high-temperature gasification part and an in-situ separation part from top to bottom; liquid-phase caprolactam is injected from the top end of the gasification device, and ammonia gas is injected through the efficient dispersion part; in the efficient dispersion part, liquid-phase caprolactam is broken in a first circular tube nest under the shearing action of gravity and ammonia gas to form liquid drops, and after high-temperature gasification, a gas phase is output from the side part of the gasification device, then enters the reactor filled with the monolithic catalyst from the bottom of the reactor, reacts through the monolithic catalyst and is output from the top of the reactor. According to the invention, caprolactam can be efficiently gasified, coking is not easy to generate, the retention time of a gas-phase reactant in the reactor can be accurately controlled, the reaction efficiency is greatly improved, the discharge amount of wastes in the production process of hexamethylenediamine is reduced, the cost is reduced, the economic benefit is improved, and a guarantee is provided for green, environment-friendly and safe production.

The utility model relates to an oil-gas separator assembly which comprises a separator outer barrel, a flange barrel cover and an oil-gas filtering assembly arranged in the separator outer barrel, the oil-gas filtering assembly comprises an inner barrel with a barrel opening provided with a flange, and the inner barrel is connected with the separator outer barrel and the flange barrel cover through the flange; a plurality of oil separation core mounting seats for mounting oil separation cores are arranged on a bottom plate of the inner barrel, the oil separation cores are respectively mounted on the oil separation core mounting seats, and inlets of the oil separation cores face downwards and are communicated with the interior of the separator outer barrel; a connecting through hole is further formed in the edge of a bottom plate of the inner barrel, a sunken oil gathering pipe is connected to the connecting through hole, an oil suction pipe is further arranged on the flange barrel cover in a penetrating mode, the inner end of the oil suction pipe extends into the bottom of the oil gathering pipe, and the outer end of the oil suction pipe is sequentially connected with a first one-way valve and an oil return pipe so as to be connected with a vacuum pump main machine through the oil return pipe. The oil-gas separator assembly has the advantages of being convenient to maintain and clean, good in oil-gas separation effect, long in service life, low in maintenance cost and the like.

The present invention relates to the technical field of burners, and in particular to a self-sustaining stable combustion burner with an improved inner cavity structure, comprising: a combustion tube, whose outlet end is a flame outlet, and whose inlet end is connected to a plasma generator and a powder inlet; an outer tube, which is sleeved between the outside of the combustion tube and the combustion tube to form a closed return air chamber; the inner cavity structure of the combustion tube is a combustion chamber formed by a reducing neck portion at the inlet end being sequentially connected to a reducing guide portion, a middle cylinder portion, a tempering reducing connection portion, and an outlet end, a tempering guide portion extending along an axial direction is arranged near the top of the inner cavity of the middle cylinder portion, and the combustion tube is provided with a return air duct for connecting the return air chamber and the combustion chamber, the return air duct is located on the tempering reducing connection portion and is located near the top of the middle cylinder portion, and is used to solve the technical problems in the prior art that the continuous operation of the burner needs to rely on a plasma igniter, resulting in low combustion efficiency and easy coking and difficult cleaning of the inner cavity of the combustion chamber.

The invention relates to a system for treating heavy hydrocarbon, which can reduce the content of heavy fraction impurities in a gas-phase component and the content of light components in a liquid-phase component by injecting a cooling aid, a separation aid and an optional gas stripping aid, thereby improving the gas-liquid separation effect. Moreover, the flash separation equipment is separated into a plurality of separation chambers which are arranged side by side through baffles, each separation chamber is provided with a steam-hydrocarbon mixture inlet and a gas phase outlet, and a high-temperature steam-hydrocarbon mixture entering the separation chamber is separated and then directly enters a downstream device from the gas phase outlet of the separation chamber. The hydrocarbon partial pressure can be adjusted without arranging a high-temperature adjusting valve on the gas phase outlet pipeline, so that the fault rate of the high-temperature adjusting valve at high temperature can be reduced, and the service life of the system can be prolonged. In addition, a cyclone hydraulic separator and a tower tray are arranged in each separation chamber, so that the gas-liquid separation efficiency and the flash evaporation effect can be improved.

The utility model discloses a kind of spice extract liquid continuous concentration device, including tank, the tank top is connected with steam pipeline, the tank side is connected with solution feed pipe, extract liquid is added to tank by the solution feed pipe and concentrated, the second heating device is arranged in the tank bottom, the second heating device is also arranged in the tank, the second heating device is the helical electric heating slide of helical fixed installation in tank middle inner wall, the top slide opening of helical electric heating slide is directly opposite the outlet of solution feed pipe, extract liquid flows into helical electric heating slide by the outlet and is primarily heated and concentrated, and then again flows into tank bottom by the second heating device and is secondarily heated and concentrated;The utility model realizes that extract liquid is evaporated and condensed by subsection continuous heating;Heating efficiency is improved.

The utility model discloses a lubricating oil filtering and recycling device which comprises a filtering hopper and a reduced pressure distillation bin, the filtering hopper is arranged at the upper end of the side portion of the reduced pressure distillation bin, a feeding pipe is connected between the lower end of the filtering hopper and the upper end of the side portion of the reduced pressure distillation bin, and an electric valve is arranged in the feeding pipe. A frame is arranged at the upper end of the interior of the filter hopper, a filter screen is arranged between the lower ends of the frame, clamping blocks are arranged at the two ends of the upper portion of the filter hopper, clamping grooves are formed in the two ends of the frame, the clamping blocks are connected with the clamping grooves in a clamped mode, handles are hinged to the two ends of the frame, and an evaporator is arranged at the bottom of the reduced pressure distillation bin. A supporting cover is arranged on the side portion of the reduced pressure distillation bin, and a vacuum pump is arranged in the supporting cover. According to the utility model, filtered impurities are easy to clean, and the recovery effect is good.

The present invention belongs to the technical field of regeneration of contaminated soil, and particularly relates to a soil pyrolysis treatment method and equipment based on direct pyrolysis desorption. The soil pyrolysis treatment method based on direct pyrolysis desorption includes soil pretreatment, soil pyrolysis desorption in a direct pyrolysis desorption furnace, and pyrolysis flue gas treatment of the direct pyrolysis desorption furnace. In the pyrolysis flue gas treatment of the direct pyrolysis desorption furnace, the specific steps are: (1) separating the pyrolysis flue gas of the direct pyrolysis desorption furnace to obtain high-temperature smoke and soil pyrolysis gas; (2) mixing the high-temperature smoke with the pretreated soil and introducing it into an indirect pyrolysis desorption furnace for pyrolysis desorption; (3) conducting the pyrolysis desorption gas generated by the indirect pyrolysis desorption furnace, and discharging the treated soil from the indirect pyrolysis desorption furnace. The soil pyrolysis treatment method and equipment based on direct pyrolysis desorption can solve the technical problems of large amount of smoke and high concentration of organic pollutants in the direct pyrolysis desorption process, and at the same time improve the treatment efficiency of the pyrolysis desorption process.

This invention relates to the field of circulating fluidized bed boiler technology, specifically to an anti-clogging structure for the return feed port of a circulating fluidized bed boiler. This structure employs a high-pressure fluidizing air duct embedded in the return feed channel of the circulating fluidized bed boiler, with the port of the embedded section directly opposite the return feed port area where the return feed channel connects to the furnace of the circulating fluidized bed boiler. A high-pressure fluidizing air source is connected to one end of the high-pressure fluidizing air duct, providing fluidizing air that is blown from the port of the embedded section towards the return feed port area, preventing ash and coking in the return feed port area. By embedding a high-pressure fluidizing air duct at the end of the return feed channel, this invention effectively prevents abrupt changes in material flow characteristics and thermal imbalance at the return feed port during load variations, thus preventing the formation of a coke layer on the inner wall and ultimately causing blockage, which is beneficial for ensuring the normal operation of the boiler.

The utility model relates to the technical field of waste heat boilers, in particular to a waste heat boiler soot anti-coking device which comprises a filter box and a cover plate, a conveying pipe is installed at one side end of the filter box, a smoke inlet pipe is installed at one side end, away from the conveying pipe, of the filter box, radiating fins distributed in an array mode are installed on the outer surface of the smoke inlet pipe, and the cover plate is installed on the outer surface of the smoke inlet pipe. Two collecting boxes are installed at the lower end of the filter box and communicated with the filter box, the upper end of the filter box is open, the cover plate is installed at the upper end of the filter box, two alloy filter screens are installed at the lower end of the cover plate, and supporting plates which are symmetrically distributed are installed at the upper end of the filter box. A mounting plate is mounted at the upper end of the supporting plate, an electric push rod is mounted at the upper end of the mounting plate, and symmetrically-distributed fixing rods are mounted at the tail end of a piston rod of the electric push rod. The waste heat boiler has the advantages that coking in the waste heat boiler can be prevented, and normal use of the waste heat boiler is guaranteed.

The utility model relates to evaporation device technical field discloses an evaporation device, including evaporation bin, motor, first elbow pipe etc. Motor is located on evaporation bin upper surface, its rotor sleeve joint conducting ring and coaxial installation rotating rod, and rotating rod is linked with conducting ring. First elbow pipe is located in the bottom end of rotating rod, and the bottom end is connected with second elbow pipe through mounting rod, and the surface of mounting rod evenly is equipped with heating plate. Evaporation bin inner chamber bottom has support frame, and the bottom end of second elbow pipe is installed on support frame through bearing. When the device works, motor drives rotating rod to rotate, and conducting ring makes heating plate rotate and continuously electrifies and heats in rotation, forms dynamic heating. The rotation of heating plate makes liquid material form thin layer liquid film under the centrifugal action, increases the contact area of liquid and heating surface, accelerates heat conduction, and the shear force produced by rotation destroys the surface tension of liquid, promotes liquid update, avoids local overheating coking, and effectively improves the evaporation efficiency of sewage.

The present invention is a hydrogenation reactor for preparing high energy density fuel, comprising a tank body, wherein the tank body is provided with a temperature control module, a filter module and a reaction module from top to bottom; the side wall of the upper section of the tank body of the temperature control module is hollow to form an upper medium containing layer, and the inner wall extends to the middle to form a hollow partition; the filter module is located below the temperature control module and is connected to the temperature control module, and the filter module is detachably provided with three layers of filter drawers with apertures from large to small from top to bottom; the reaction module comprises a plurality of inclined catalyst plates, a lower catalyst plate and a hydrogen spray hood. The hydrogenation reactor for preparing high energy density fuel described in the present invention can significantly improve the efficiency of the reaction and increase the stability and balance of the reaction.

This invention discloses a method and system for producing mesophase carbon microspheres. The method involves hydrogenating purified catalytic slurry, followed by separation to obtain light fraction, middle fraction, and tail oil. The middle fraction is divided into two streams: the first stream undergoes cracking, with the cracking products recycled; the second stream undergoes a first heat treatment, and the heat-treated product is pulverized to obtain a solid first feed stream, a first solvent, and silicone oil, which are then subjected to a second heat treatment. The resulting reaction product is then centrifuged, washed, and dried to obtain mesophase carbon microspheres. The production system includes a purification unit, a hydrogenation reaction unit, a gas-liquid separation unit, a fractionation unit, a cracking reaction unit, a first heat treatment unit, and a second heat treatment unit. This invention proposes an optimized approach to preparing mesophase carbon microsphere raw materials, yielding high-quality mesophase pitch raw materials and mesophase carbon microsphere products.

The utility model provides an engine oil heating system of an engine, the engine and an automobile, the engine oil heating system comprises a bypass oil way, the bypass oil way is communicated with a high-position oil outlet of the engine and an oil pan, and the bypass oil way comprises an oil way switching part, a heating oil way and a straight-through oil way. The oil way switching component comprises an oil inlet and two oil outlets, the oil inlet of the oil way switching component is communicated with the high-position oil discharge outlet, one oil outlet of the oil way switching component is communicated with the oil inlet of the heating oil way, and the other oil outlet of the oil way switching component is communicated with the oil inlet of the straight-through oil way. And oil outlets of the heating oil duct and the straight-through oil duct are both communicated with the oil pan. According to the scheme, waste heat of the engine is used for heating part of return oil of the lubricating system, the functions of rapid warming and oil temperature management of the lubricating system are achieved independently, power of the engine or electric power resources of a vehicle do not need to be consumed, and the original structure, performance and functions of the engine lubricating system cannot be affected.

The utility model discloses a kind of rectifying stills for processing thionyl chloride, the utility model relates to chemical processing technical field.It includes rectifying still main part, and installation mechanism for thionyl chloride processing is arranged on the rectifying still main part, installation mechanism includes: stirring subassembly, including the first drive rod of rectifying still main part inside rotary connection, the outer wall of the first drive rod is uniformly fixed with stirring rod, the utility model first motor starts, drives the rotation of first drive rod, drives stirring rod to stir material, while scraper support scrapes off adherend of inner wall, avoid local overheating or coking of material, when first drive rod rotates, second bevel gear drives the rotation of first bevel gear, and then through third bevel gear drives movable rod reverse rotation, movable rod and first drive rod reverse rotation, make two groups of stirring parts form convection, realize vertical bidirectional stirring, make material mixing more intense and uniform, greatly strengthen mass transfer and heat transfer process, enhance mixing effect.

The utility model relates to a chemical industry mechanical equipment field especially, relates to a kind of ester exchange equipment for vegetable oil-based emulsifier production, including tank body, the tank body top is equipped with feed inlet, tank body bottom is equipped with discharge gate, the temperature regulating system is arranged in the tank body;The tank body top is installed with stirring motor, the output shaft of stirring motor is connected with stirring shaft, the stirring shaft is provided with stirring vane, the stirring vane includes the helical stirring vane of top layer, the stirring vane of pulp of middle layer and the anchor stirring vane located in bottom layer;The temperature regulating system includes high temperature layer located at the tank body top, constant temperature layer located at the tank body middle and cooling layer located at the tank body bottom.The ester exchange equipment of the application can reduce the adhesion of material to the inner wall of equipment and stirring device during production, thereby improving the uniformity of material distribution, reaction conversion rate and the quality of final product.

The utility model relates to the technical field of petrochemical engineering, in particular to slurry bed residual oil hydrogenation fractionation equipment which comprises a slurry fractionating tower, a slurry feeding pipe and a hydrogen injection pipe are arranged on the side face of the slurry fractionating tower, the hydrogen injection pipe is located below the slurry feeding pipe, and a hydrogen distributor is arranged in the slurry fractionating tower. And the hydrogen distributor is connected with the hydrogen injection pipe. According to the utility model, hydrogen is uniformly sprayed out, is in uniform contact with materials and gradually rises, so that the temperature of the materials at the bottom of the slurry fractionating tower can be reduced, high-temperature dehydrogenation and polycondensation reaction can be relieved, meanwhile, the inner wall of the tower is purged, slurry coking in slurry reactor residual oil hydrogenation fractionating equipment can be inhibited, and stable and long-term operation of a slurry fractionating system is realized.

The invention relates to a method for catalytically degrading waste plastics in a slurry reactor by molybdenum sulfide. The synthesized catalyst reaches a 50nm level, has high dispersity and can convert polypropylene waste plastics into an oil product with a distillation range of 20-500 DEG C, the yield of the oil product reaches 90%, the conversion rate reaches 100%, and the selectivity on gasoline and diesel components can reach 95%.

This invention belongs to the field of waste incineration fly ash technology, and provides a waste incineration fly ash stabilizing and molding agent, its application, and a method for treating waste incineration fly ash. The agent comprises the following components in parts by weight: 5-8 parts cement, 5-10 parts stabilizing agent, 7-10 parts binder, and 15-18 parts coating agent. The waste incineration fly ash stabilizing and molding agent provided by this invention not only physically adsorbs and chemically binds with washed fly ash, achieving stable bonding without high addition amounts, resulting in molded bodies with excellent cold and hot pressing strength, solving the problems of easy pulverization and dust generation and secondary pollution caused by fly ash during remelting; it also complexes and solidifies with heavy metals in fly ash, achieving heavy metal mineralization; simultaneously, it ensures that the agent can co-combust with fly ash particles, without producing difficult-to-burn residues, avoiding coking and ash accumulation in the furnace, and poses no environmental risk or secondary pollution during use.

This invention discloses a method for reducing the grindability index of raw coke. After the carbonization feed is completed, the heating furnace heat load is maintained, and steam or heavy oil is introduced into the furnace tubes. The heated steam or heavy oil is then sent to the carbonization tower. Simultaneously, the carbonization tower is restored to a slightly positive pressure within 30-60 minutes, and the carbonization reaction temperature of the material is maintained to continue the carbonization reaction. Then, the raw coke exiting the carbonization tower is sent to a carbonization furnace or brick kiln for calcination. This invention, based on the raw coke production process and the principles affecting the grindability index of raw coke, produces raw coke with an adjustable grindability index suitable for manufacturers, reducing the time spent by manufacturers in raw material selection.

The invention relates to a rectification device, in particular to a semi-continuous crude oil rectification device combined with energy balls. The device comprises a preheating body and a refining body communicated with the preheating body, and the refining body comprises a continuous reaction assembly and a gas-slag filtering assembly arranged in the continuous reaction assembly. According to the invention, the sleeve drives the side bracket to enable the sieve plate to push the energy ball to horizontally move in the crude oil, the bottom shaft at the bottom of the sieve plate drives the bottom plate to reciprocate up and down, and the energy ball is lifted by the shifting piece to move upwards when passing through the shifting piece, so that coking can be avoided, and uniform transfer of heat in the crude oil can be ensured; horizontal reciprocating motion of the sieve plate and vertical reciprocating motion of the bottom plate can play a role in stirring the crude oil, precipitation of flue gas in the crude oil can be accelerated, so that heating of the preheating furnace is facilitated, the preheating furnace uses hot flue gas to preheat the crude oil, the energy-saving effect can be achieved, the reaction time of the device can be shortened, and the production efficiency is improved. Therefore, the distillation efficiency is improved.

The present application relates to heat transfer printing machine technical field, especially to a kind of sealed heating roller and its manufacturing method, including roller, at least one circular is provided in roller, at most four vacuum inner cylinders of cross section are sector, vacuum inner cylinder is evenly distributed along the circumferential direction, at least four groups of heating pipes are installed in roller, heating pipe is installed at the gap between vacuum inner cylinder and vacuum inner cylinder.This application roller is sealed as a whole, uses heating pipe to heat the heat conducting oil in the interior, avoids contact with air, prevents carbon deposition, coking from happening;The design of four vacuum inner cylinders reduces the amount of heat conducting oil, saves cost, at the same time because the amount of heat conducting oil is less, it has the advantages of fast heating and low energy consumption, so that only four heating pipes can meet the heating demand, so that the number of electric heating pipe is less, cost is further reduced, and the probability of roller oil penetration is also reduced;The design of four vacuum inner cylinders can also reduce the sealed roller.

A kind of settler, comprising: settler tank, primary separator and cyclone separator, primary separator and cyclone separator are arranged in settler tank, primary separator includes bend pipe and the down pipe being communicated with bend pipe, the first end of bend pipe is connected with the exit of reactor side wall, the second end of bend pipe is connected with cyclone separator, bend pipe is bent upwards from the connection with reactor side wall.The oil gas and catalyst discharged from reactor enter the bend pipe of primary separator, most of catalyst is discharged through the down pipe of primary separator, and oil gas enters cyclone separator for further gas-solid separation.Oil gas directly into settler is greatly reduced, to avoid coking in settler, on the other hand, reduce the working load of cyclone separator, reduce the loss of catalyst.

The utility model relates to the technical field of pulverized coal boilers, in particular to a boiler structure for burning Zhundong coal, which can avoid slag bonding and ash deposition and ensure normal and stable operation of the boiler, and comprises a hearth, a horizontal flue and a tail shaft flue, a high-temperature superheater is arranged in the horizontal flue, the hearth is provided with combustors, and the combustors are arranged at four corners of the hearth. The combustors are primary air combustors and are provided with four layers, an electric swing plate capable of swinging up and down is arranged in each primary air combustor, a platen superheater is arranged at the top of the hearth and an inlet of the horizontal flue, and the distance L2 between the primary air combustor on the uppermost layer and the platen superheater is larger than or equal to 20 m. The distance L1 between the primary air combustor on the lowermost layer and the inflection point position of the lower portion of the hearth is larger than or equal to 4 m, a middle ignition layer nozzle is arranged between the primary air combustors on the two middle layers, secondary air nozzles are arranged beside the primary air combustors, and soot blowers are arranged in the hearth at intervals.

The utility model discloses heating reaction equipment for amino paint production, and relates to the technical field of baking paint heating equipment, the heating reaction equipment comprises a heating mechanism and a stirring mechanism, the heating mechanism comprises a heater, a heat conduction oil heating tank, a spiral heat conduction pipe, a circulating pump, a reaction kettle body and an electric heating wire, according to the reaction kettle disclosed by the utility model, materials in the reaction kettle body are uniformly heated in a manner of combining the electric heating wire and heat-conducting oil cyclic heating and arranging the heat-insulating shell on the outer side wall of the reaction kettle body, so that the energy utilization rate is improved, and the problems of non-uniform heating and energy waste are effectively solved; the scraping plate and the extension plate scrape materials attached to the bottom and the side wall of the reaction kettle body while stirring the materials in the reaction kettle body, the situation that the materials are coked due to long-time local heating is avoided, the production quality of amino paint is improved, in addition, through the synergistic effect of the scraping plate, the extension plate and the multiple stirring blades, the raw materials in the reaction kettle body can be fully mixed, and the production efficiency is improved. The reaction efficiency is improved.

The invention discloses a catalytic hydrogenation reactor and a catalytic hydrogenation method for treating a biomass raw material with a high acid value and a high iodine value, and belongs to the technical field of oil product hydrogenation. The catalytic hydrogenation reactor comprises a reactor pressure-bearing container, an inner cylinder, an ash discharge port, a feeding assembly, a reaction assembly and a discharging assembly, the inner cylinder is arranged in the reactor pressure-bearing container, the feeding assembly and the reaction assembly are arranged in the inner cylinder, the reaction assembly comprises a ceramic tube bundle internal part, the discharging assembly is arranged above the inner cylinder, and the discharging assembly is arranged above the inner cylinder. The ash discharge port is formed in the center of the bottom of the reactor pressure-bearing container. By arranging the ceramic tube bundle inner part, selective hydrogenation of the high-acid-value and high-iodine-value biomass raw material is realized under the combined action of the solid catalyst and the liquid catalyst, the iodine value is effectively reduced, and coking of the high-iodine-value biomass raw material in the reaction process is avoided; in addition, the acid value is maintained as far as possible while the iodine value is reduced, and the solid catalyst and the catalytic hydrogenation reactor are not corroded, so that the stability of the solid catalyst and the yield of the product are improved.

The utility model relates to a kind of scraper device and stirring device for scraping wall stirring, including connecting plate (2), pin shaft (3), scraper (4) and split pin (1);The connecting plate (2) one end is connected with stirring paddle (5), and the other end of connecting plate is connected with pin shaft (3), and the axis of pin shaft (3) is perpendicular to the movement direction of stirring paddle (5);Multiple scrapers (4) are sleeved on the pin shaft (3), and scraper (4) can rotate around pin shaft (3);The end of pin shaft (3) away from pin shaft cap is installed split pin (1) to limit scraper (4).The utility model is simple in processing and manufacturing, easy to disassemble and install, scraper is closely adhered to tank wall, scraper self-regulating effect is obvious, wall is scraped clean, easy to clean, and assembly replacement is convenient.

The invention provides a C10 recovery device capable of generating steam, and belongs to the technical field of petroleum refining, the C10 recovery device comprises a first feed preheater, a second feed preheater, a C10 cutting tower, a tower top steam generator and a tower top hot water heat exchanger, enabling the raw oil to enter a C10 cutting tower at a preset temperature for separation treatment to form a gaseous light component; the tower top steam generator is connected between the tower top of the C10 cutting tower and the tower top hot water heat exchanger and is used for carrying out secondary condensation treatment on the gaseous light components, low-pressure steam and liquid light components subjected to primary condensation are generated after the light components are subjected to condensation treatment through the tower top steam generator, and the low-pressure steam and the liquid light components are subjected to secondary condensation treatment through the tower top hot water heat exchanger. And condensing the liquid light component through a tower top hot water heat exchanger to generate hot water for heat tracing and a product of C10 and below, wherein the product of C10 and below is output as a reforming raw material in a hot discharge form. According to the invention, the recovery of C10 and below products can be realized.