33results about How to "Easy to remove slag" patented technology

The invention discloses a high-strength steel welding rod for 1000 MPa water and electricity and a preparation method and application of the high-strength steel welding rod. The invention belongs to the technical field of welding materials. The technical problems that the low-temperature impact toughness of an existing welding material for 1000 MPa-grade high-strength steel needs to be improved, and the welding cold crack sensitive index is too large are solved. The welding rod is composed of a core wire and a coating wrapping the surface of the core wire. Powder of the coating is formed by mixing marble, fluorite, rutile, silica powder, electrolytic manganese, ferrosilicon, graphite, ferromolybdenum, chromium metal, iron powder, nickel powder, sodium carbonate and sodium alginate. The welding rod has the advantages of good all-position welding process performance, stable electric arc, small flying speed, uniform coating melting, beautiful weld joint forming and good operability of welders. And weld metal has good mechanical properties. And the method is used for welding the high-strength steel for the 1000MPa-grade water

The invention belongs to the technical field of welding, and particularly relates to a consumable electrode CO2 gas shield flux-cored wire suitable for cryogenic high manganese steel welding, and a flux core accounts for 25-30% of the total weight of the flux-cored wire; the flux core comprises, by weight, 25%-35% of rutile, 30%-34% of electrolytic manganese metal, 1%-5% of potassium sodium titanate, 2%-5% of quartz, 1%-3% of zircon sand, 0-0.5% of manganese ore, 1%-3% of rare earth ferrosilicon alloy, 0.5%-1.5% of rare earth fluoride, 3%-8% of high-carbon ferrochrome, 2%-4% of molybdenum powder, 2%-4% of magnesium-calcium alloy, 3%-7% of aluminum-zirconium alloy, 9%-12% of nickel-magnesium alloy, 0.5%-1.5% of rare earth silicon-calcium alloy and the balance flux. 1-1.5% of bismuth oxide, 0.5-1.5% of graphite and the balance of iron powder. The invention provides the consumable electrode CO2 gas shield flux-cored wire which is good in process and mechanical property, simple in production process and suitable for cryogenic high manganese steel welding.

The utility model relates to the technical field of nut screening, and discloses a device for removing slag powder through vibration screening before nut tasty, which comprises a mounting base body, the mounting base body is provided with a screening mechanism, the screening mechanism comprises a first slag powder screening cylinder, a driving mounting groove is formed in the inner wall of the right end of the mounting base body, and a second driving mounting groove is formed in the inner wall of the right end of the mounting base body. A driving mechanism used for rotating the first slag powder screening cylinder is arranged in the driving mounting groove and comprises a first driving motor and a first rotating round rod, and a second slag powder screening cylinder and a third slag powder screening cylinder are arranged in the first slag powder screening cylinder. According to the nut screening device, firstly, nuts are placed in the third residue powder screening barrel, then the arranged first driving motor is started, the first driving motor drives the first rotating round rod to rotate, the first rotating round rod drives the first residue powder screening barrel to rotate synchronously, meanwhile, the second driving motor is started, and the second driving motor drives the second rotating round rod to rotate synchronously; and a second driving motor outputs to drive a second rotating round rod, a second residue powder screening cylinder and a third residue powder screening cylinder to rotate, and synchronous rotation is achieved to screen residue powder of the nuts.

The invention relates to the technical field of sewage purification and treatment, in particular to a garden landscape sewage purification and circulation treatment device which comprises a main body shell, the main body shell is located in the center of garden landscape through a supporting table, a water inlet is formed in the outer side of the main body shell, and a water outlet is formed in the bottom end of the main body shell; the rotary filter cylinder unit comprises a first storage cylinder and a filter cylinder, and the self-cleaning unit comprises a cleaning disc, a cleaning brush and a cleaning scraper; a first connecting pipe communicated with the first storage cylinder is arranged on the outer side of the second storage cylinder, a first pump body is arranged on the outer side of the first connecting pipe, and a water drainage pipe is arranged at the bottom end of the second storage cylinder; the cleaning brush and the cleaning scraper are driven by the cleaning disc to continuously scrape and sweep the inner wall of the filter cartridge, so that automatic online cleaning is realized, frequent manual disassembly and cleaning are not needed, the maintenance cost and the labor intensity are reduced, and continuous water purification circulation is ensured.

The utility model relates to the technical field of stainless steel pickling, in particular to a stainless steel pickling device which comprises a pickling tank and a water pump, the bottom end of the pickling tank is fixedly connected with supporting legs, the outer side of the pickling tank is fixedly connected with a fixing frame, and the other end of the fixing frame is fixedly connected with a motor. The device comprises a motor, a fixing frame and a cover plate, a connecting shaft connected through a coupler is arranged at the output end of the motor, a disc is fixedly connected to the end, away from the motor, of the connecting shaft, and a straight rod is fixedly connected to the edge of one side of the disc. A stainless steel product needing acid pickling can be placed in the cleaning cage composed of the disc and the straight rod, the cleaning cage rotates in an acid pickling solution under driving of the motor, the stainless steel product in the cage rolls in the cage and makes full contact with the acid pickling solution, cleaning and deslagging can be better conducted on the stainless steel product, and the cleaning time is shortened.

The invention discloses an aluminum smelting slag removal processing system and method, and belongs to the technical field of slag removal of smelting furnaces; the invention discloses a slag removal module, a data sensing module, an execution module, an optimization judgment module and a data terminal; the data sensing module is a monitor on the slag removal module, which is used to monitor the slag data in the smelting furnace and send the acquired slag data to the execution module; after selecting a corresponding slag bucket according to a slag removal target, the invention uses the size of the slag bucket to plan the slag removal area in the smelting furnace to form a primary slag removal route, processes a plane image of the slag in the primary slag removal route to obtain the slag amount and concentrated area, and then generates a secondary slag removal route, performs secondary slag removal treatment in the smelting furnace, and compares the slag residue after slag removal with a preset slag residue standard amount to determine the conditions for continuing slag removal and ending slag removal, further optimizes the slag removal operation, and reduces the problems of low work efficiency and heat loss caused by repeated slag removal.

The application discloses a smelting furnace crucible anti-oxidation protection device and belongs to the technical field of smelting furnace crucible protection. The smelting furnace crucible anti-oxidation protection device is characterized by the following steps: inserting the flange crucible into the mounting through hole; after smelting is completed, retracting the telescopic end of the electric push rod, driving the push frame to slide reversely along the limiting slide rod, pushing the protection sealing cover plate to slide to the outside of the furnace body along the T-shaped guide slide bar through the pushing block, moving the push plate one away from the push plate two, gradually resetting the overlapping position of the push sliding groove one and the push sliding groove two, driving the push sliding frame to move reversely, synchronously separating the moving pressing strip from the flange of the crucible, reversely sliding the pushing block along the lifting sliding groove, pushing the linkage lifting strip to extend upward from the rectangular through slot, stably lifting the flange crucible, and directly taking out the lifted flange crucible from the mounting through hole after the protection sealing cover plate is completely opened, thereby completing dismounting.

The invention provides a micron-sized rare earth cerium additive modified 1000MPa-grade high-strength steel submerged-arc welding flux as well as a preparation method and application thereof, and belongs to the technical field of flux preparation. The invention solves the problems of low low-temperature toughness, high crack generation tendency, burning loss of alloy elements and the like of the existing 1000MPa-grade high-strength steel submerged-arc welding deposited metal. The rare earth cerium additive is introduced into the welding flux, the additive can improve the fluidity of the welding flux so as to improve the welding quality, meanwhile, micron-sized rare earth cerium has the effects of refining grains and modifying inclusions, and the micron-sized rare earth cerium is matched with other components in the welding flux so that the strength of deposited metal can be enhanced, and the low-temperature impact toughness of the deposited metal can be improved. The flux can be used for welding 1000MPa-grade high-strength steel under the working conditions that the online energy is greater than 30kJ / cm and the thickness of a base metal plate is greater than 80mm, the mechanical property of deposited metal after welding is excellent, the construction cost of the high-strength steel for water-power engineering can be reduced, and the flux has remarkable economic benefits and social benefits.

The utility model belongs to the technical field of medicated diet boiling equipment, and particularly relates to a medicated diet boiling machine which comprises a boiling tank and an electric heater located in an inner cavity of the boiling tank. The boiling tank is fixed on the operation table, a medicated food containing pipe is arranged in an inner cavity of the boiling tank, the bottom end of the medicated food containing pipe penetrates through a bottom plate of the boiling tank and the operation table, and the bottom end of the medicated food containing pipe is in threaded connection with a crushing device; a water passing hole is formed in the pipe section, located in the inner cavity of the boiling tank, of the medicated food containing pipe, and the inner cavity of the boiling tank is communicated with the inner cavity of the medicated food containing pipe through the water passing hole; a discharging pipe is arranged on the boiling tank, a control valve is arranged on the discharging pipe, and the discharging pipe is communicated with the bottom of the inner cavity of the boiling tank. Due to the structure, the novel bowl is convenient to operate and easy to clean, and people can eat at any time according to needs.

The application provides an acid core wire and a preparation method and application thereof, and particularly relates to the technical field of welding materials. The core wire comprises a steel belt sheath and a core filled in the steel belt sheath. The core comprises the following components in percentage of mass: 35-50% of rutile, 2.5-5% of zircon sand, 2.5-5% of potassium feldspar, 1.5-3% of potassium fluozirconate, 1.5-3% of quartz, 15-20% of metallic manganese, 3-5% of ferrosilicon, 15-20% of nickel powder, 1-2% of cobalt powder, 1-2% of molybdenum powder, 1-2% of aluminum-zirconium alloy, 1.5-3.5% of magnesium powder, 1-2% of perovskite, and the rest is atomized iron powder. The acid core wire has good welding process, good arc stability, less spatter, good appearance of weld formation, good deslagging property, high deposition rate and deposition rate, and the weld has the characteristics of high strength, high low-temperature impact toughness and corrosion resistance, and can meet the use requirement of high-strength Q690 rack steel.

The present invention discloses a nickel-chromium-molybdenum series nickel-based welding rod for welding liquefied natural gas (LNG) storage tanks, comprising a welding core and a coating, wherein the coating is pressed onto the surface of the welding core; the present invention improves the mechanical properties of the welding rod by enriching the coating with alloy elements such as chromium, molybdenum, manganese, niobium and tungsten for transition to the weld metal; adopts a new type of pure smelting technology to effectively control the content of impurity elements such as sulfur and phosphorus in the pure nickel welding core, and after rolling, drawing and coating, the welding rod has excellent processability for welding 9 nickel steel, the formed deposited metal and the weld area of ​​the weld joint have excellent low-temperature toughness, and various mechanical performance indicators such as tensile strength, low-temperature impact and three-point bending fully meet national standards.

The utility model relates to extraction device technical field discloses a kind of ultrasonic wave circulation extraction devices for moss bacteriostatic agent, including the fixed connection of sediment cavity and stirring cavity from bottom to top, and the outer wall of sediment cavity and stirring cavity is connected with support, valve port is provided at the junction of sediment cavity and stirring cavity, the bottom end of sediment cavity is threadedly connected with sealing plug, the outside junction of sediment cavity and stirring cavity is provided with circulation mechanism, ultrasonic oscillator is provided at the valve port place of stirring cavity inner wall bottom end, stirring mechanism is provided in stirring cavity. The circulation mechanism in the utility model is provided with filter cleaning piece at the water inlet in sediment cavity;When circulation pump works, fluid drives rotary blade to rotate, drive arc plate to carry out sustained scraping and cleaning to the outer wall of filter head, prevent moss residue from adhering and accumulating, avoid the blockage of pipeline and pump body, to ensure the continuity and stability of circulation extraction operation, reduce equipment damage risk.

The utility model relates to the technical field of wet dust removers, and discloses a wet dust remover convenient to quickly remove slag, which comprises a dust removal box body, an impurity outlet pipe is fixedly connected to the bottom of the dust removal box body, an air inlet pipe is fixedly connected to the left side of the dust removal box body, and a filter plate is arranged in the dust removal box body. A bolt is arranged between the dust removal box body and the filter plate, an exhaust fan is fixedly connected to the top of the dust removal box body, a movable slag removal mechanism is arranged in the dust removal box body, and an auxiliary dust falling mechanism is arranged on the right side of the dust removal box body. Gas entering the dust removal box body is fully mixed with purified water conveniently, the gas is rapidly subjected to slag removal in cooperation with a filter plate, the filter plate is conveniently knocked through work of a second motor and cooperation with a spring, and reciprocating motion of a spraying plate is conveniently achieved through work of a third motor and cooperation with a second gear.

The invention belongs to the technical field of welding materials, and particularly relates to a nickel-chromium-molybdenum alloy welding rod and a preparing method and using method thereof.The welding rod comprises a core wire and a coating, and cladding metal of the welding rod comprises, by weight, 0.03%-0.05% of C, 0.4%-0.7% of Mn, 15.5%-15.8% of Cr, 5.7%-5.9% of Ni, 0.8%-0.95% of Mo, smaller than or equal to 0.30% of Si, smaller than or equal to 0.020% of S, smaller than or equal to 0.030% of P and the balance Fe and inevitable impurities. According to the welding rod, the welding performance and various mechanical properties of the welding rod can be properly adjusted by adjusting the content of nickel, chromium and molybdenum, so that the welding rod can meet various heat treatment modes after welding, and the adaptability and universality of the welding rod are improved.

The utility model discloses a movable type grinding fluid on-line filtering device which comprises a movable box body, a precise filtering unit used for filtering grinding fluid and a residue discharging unit used for collecting and separating filter residues are arranged in the box body, a filtering liquid inlet in the bottom of a filtering tank in the precise filtering unit is communicated with a residue discharging pipe, and a filtering liquid outlet in the bottom of the filtering tank is communicated with the residue discharging pipe. The precise filtering unit is arranged in the box body, the residue discharging unit comprises a residue discharging barrel, a filtering basket and a residue inlet, the filtering basket is arranged in the residue discharging barrel, the residue inlet is formed above the filtering basket, and the residue inlet is connected with a residue discharging pipe. And the whole device can be conveniently moved and transferred.

The invention discloses a double-track torpedo car tank opening slag removing device and a using method.The tank opening slag removing device comprises a guide rail platform and a three-coordinate slag removing device arranged on the guide rail platform in a rolling mode, and the three-coordinate slag removing device comprises a chassis mechanism, a transverse moving base, a longitudinal moving base, an upper hanging bracket, a lifting base and a cutter head mechanism; the transversely-moving base is transversely and slidably arranged on the inner side of the chassis mechanism, the longitudinally-moving base is longitudinally and slidably arranged on the transversely-moving base, the upper hanging bracket is arranged on the longitudinally-moving base, the lifting base is arranged on the upper hanging bracket in a lifting and sliding mode, and the cutter head mechanism is arranged at the bottom end of the lifting base. A transverse moving hydraulic cylinder is arranged between the chassis mechanism and the transverse moving base, a longitudinal moving hydraulic cylinder is arranged between the longitudinal moving bases and the transverse moving base, and a lifting hydraulic cylinder is arranged between the upper hanging bracket and the lifting base. The problems of low slag removal efficiency, potential safety hazards and the like caused by manual slag removal at the tank opening of the torpedo car or adoption of a fixed single-tank-opening slag removal machine and multiple torpedo cars can be effectively solved.

The embodiment of the invention provides a slagging-off device for a submerged arc furnace, and relates to the technical field of slagging-off equipment for submerged arc furnaces. The slagging-off device for the submerged arc furnace comprises a fixing frame, a fixing box is fixedly connected to one side of the top of the fixing frame, and an air cylinder barrel is fixedly connected to the right side of the fixing box; a supply assembly matched with the air cylinder barrel in an acting mode is arranged in an inner cavity of the fixing box, the supply assembly comprises a double-head motor fixed to one side of the bottom of the fixing frame, and an extension assembly matched with the supply assembly in a supply mode is arranged on the right side of the fixing frame. And a gathering assembly which is internally and externally adjusted with the extending assembly is arranged in an inner cavity of the fixing frame, and a lifting assembly used for adjusting the overall height of the supply assembly, the extending assembly and the gathering assembly is arranged on the outer side of the fixing frame. A pneumatic and mechanical combined low-cost driving mode is adopted, the comprehensive, efficient and flexible slagging-off effect on slag charge in silicon-manganese alloy melt liquid in the submerged arc furnace is achieved, the slagging-off efficiency of the slag charge is improved, and the slagging-off cost of the slag charge is also reduced.

The present invention provides a self-shielded flux-cored welding wire and a preparation method thereof, and specifically relates to the field of welding materials. The self-shielded flux-cored welding wire of the present invention comprises a steel strip and a flux core filled in the steel strip, and the flux core comprises the following components and the weight proportions of each component are respectively: 25-40 parts of barium fluoride, 5-10 parts of fluorite, 1-3 parts of rare earth fluoride, 1-3 parts of potassium fluoride, 1.5-3.5 parts of barium carbonate, 3-8 parts of marble, 1.5-2.5 parts of graphite, 20-30 parts of aluminum-magnesium alloy, 10-20 parts of aluminum powder, 2-4 parts of aluminum-iron, 1-3 parts of silicon-calcium alloy, and the balance is iron powder. The deposited metal of the self-shielded flux-cored welding wire of the present invention has good mechanical properties, tensile strength and yield strength, and reduces carbon emissions and manganese content in smoke.

The utility model belongs to molten aluminum vortex well system technical field discloses a kind of molten aluminum delivery filling block, and pump chamber block and vortex well chamber block are assembled together, including filling block main body, the filling block main body is cuboid refractory material block, the height of the filling block main body is consistent with the pump chamber block and vortex well chamber block, the length of the filling block main body is consistent with the width of the pump chamber block, the length of the vortex well chamber block is equal to the length of the pump chamber block plus the width of the filling block main body;The bottom of the filling block main body is provided with the flow channel of communicating double-chamber furnace and the pump chamber block.The utility model molten aluminum delivery filling block, and pump chamber block and vortex well chamber block are assembled together as the combination block body of cuboid appearance, and it plays a stable supporting role to molten aluminum vortex well system.

The utility model relates to the technical field of scum cleaning, and discloses a full-automatic skimming device applied to a high-density sedimentation tank, which comprises a skimming mechanism arranged at the edge of the rear side of the upper surface of the sedimentation tank, and a slag collecting mechanism arranged at the right side of the inside of the sedimentation tank, a circulating pump is mounted on the upper surface of the mounting frame, and a first water pipe is mounted at the left end of the circulating pump; according to the utility model, the skimming mechanism and the slag collecting mechanism are arranged; a motor in the skimming mechanism drives a threaded rod to rotate, so that a skimming screen plate moves to the right side, and scum in the sedimentation tank is skimmed to the rightmost end, so that subsequent scum removal is facilitated; the height of the skimming screen plate can be conveniently adjusted through fixing bolts and fixing holes, and the skimming screen plate is suitable for water levels of different heights; a circulating pump in the scum collecting mechanism sucks the scum through a first water pipe and a second water pipe, and collects the scum through a collecting net frame, so that the whole scum cleaning work is automatically completed.

The invention discloses a high fracture toughness flux-cored wire for ocean engineering, which comprises a carbon steel sheath and powder filled in the sheath, and is characterized in that the powder comprises non-metal powder and metal powder; the non-metal powder comprises the following components in parts by weight: 360-380 parts of titanium dioxide; 13 to 25 parts of quartz; 40 to 50 parts of potassium silicotitanate; 35 to 55 parts of sodium silicotitanate; and 13-18 parts of cryolite. The welding wire is suitable for multi-layer and multi-pass welding of an EH36 steel plate with the thickness of 80 mm; and the welding heat input is controlled to be 12-25 kJ / cm, and good process adaptability is achieved.

The utility model discloses a slurry discharging groove for a vertical shaft drilling machine, and relates to the field of deep and large vertical shaft drilling method construction. The slurry discharging tank comprises a tank body, a bracket, supporting legs and a steel rail, the tank body is erected above the bracket, the supporting legs are fixed below the bracket, the supporting legs rise step by step, so that the tank body is of an inclined structure, the tank body is formed by splicing multiple sections, the high side is closed, the low side is open, the steel rail is fixed to the bottom of the tank body, and a slurry pipe is supported to move on the steel rail in a reciprocating mode. The length of the slurry discharging tank is matched under different construction environments and requirements through the tank body formed by splicing the multiple sections, hoisting is more convenient through the sectional design, the construction cost is reduced, the width of the bracket is slightly larger than that of the tank body, workers can conveniently carry out slag removal operation on the slurry discharging tank, and the working efficiency of the workers is improved.

The present invention provides a coated electrode and its coating and preparation method, and specifically relates to the field of welding materials. The electrode coating of the present invention comprises the following components and the weight proportions of each component are: 20-25 parts of marble, 23-28 parts of fluorite, 6-8 parts of barium carbonate, 6-9 parts of titanium dioxide, 4-5 parts of ferrosilicon, 1-2 parts of potassium feldspar, 5-7 parts of metal manganese, 4-5 parts of nickel powder, 1-2 parts of ferromolybdenum, 1-2 parts of rare earth fluoride, 17-22 parts of iron powder, 0.5-1 part of sodium carbonate, 0.3-0.6 parts of ferroboron, 0.5-1 part of sodium carboxymethyl cellulose, and 0.2-0.5 parts of graphite. The coated electrode of the present invention has good welding in all positions, small spatter, good slag removal, beautiful weld formation, and the electrode deposited metal has high strength and toughness.

The utility model discloses a boiler slag removal device for a thermal power plant, relates to the field of boiler slag removal, and solves the problems that in the slag removal process of a current chain bucket conveyor, slag needs to be continuously input to the feeding end of the chain bucket conveyor, so that a certain amount of dust is generated due to the impact force of the slag, the environment is polluted, and the service life of the chain bucket conveyor is prolonged. In addition, the anti-blocking device can be adsorbed on an electric control conveying belt, so that the anti-blocking device is blocked. The device is technically characterized by comprising a supporting seat; the fixing structure is mounted on the supporting seat, and the fixing structure is used for fixing; and the supporting structure is installed on the upper surface of the supporting base, and the supporting structure is used for supporting. And the slag discharging device is relatively simple in structure and convenient to use.

The utility model relates to the field of frying machines, and discloses a residue removing device of a frying machine, which comprises a frying barrel, a filter screen plate uniformly provided with meshes, a rotating shaft, a gear I, a gear II meshed with the gear I and fixed on the outer wall of the rotating shaft, a connecting rod I connected with the rotating shaft, and a lifting mechanism of a connecting rod II connected with the connecting rod I, during use, food residues fall on the filter screen plate when food is fried, the driving motor is started after frying is completed, the driving motor drives the rotating shaft to rotate, the rotating shaft drives the second gear to rotate, the first gear is meshed with the second gear, then the first gear rotates and drives the other second gears to rotate, the second gear drives the first connecting rod to rotate, and the first connecting rod drives the second connecting rod to rotate. The first connecting rod drives the second connecting rod to rotationally ascend and descend, the filter screen plate ascends and descends, frying oil falls down through meshes, and residues are brought out. The oil draining and residue removing device has the advantages and effects of draining oil, removing residues, saving oil, being convenient and labor-saving to use and being capable of improving the working efficiency of the fryer.

The present invention relates to a wire-submerged arc sintering flux for high-temperature nickel-based alloys and a preparation method thereof. Specifically, the wire-submerged arc welding sintering flux for high-temperature nickel-based alloys is prepared by mixing the following fine powders: fluorite, sillimanite, white corundum, magnesia, mica, cryolite, and clay. The flux is prepared according to the following process: seven kinds of fine powders of fluorite, sillimanite, white corundum, magnesia, mica, cryolite, and clay are mixed and dry-mixed in a formula ratio, and then potassium sodium silicate is added and stirred and mixed to obtain a mixture; the mixture is first dried at a low temperature of 180 to 230°C, and then sintered at a high temperature of 700 to 900°C and sieved to obtain a granular wire-submerged arc welding sintering flux for high-temperature nickel-based alloys. The flux obtained by the present invention exhibits excellent effects as described in the specification.

The application provides a 62kg-grade special submerged arc flux for wind power tower cylinder welding meeting a pressure standard, which is composed of raw materials with the following mass percentages: calcium fluoride 15-20%, aluminum oxide 15-20%, marble 15-20%, fused magnesite 10-15%, rutile 10-15%, mica 10-15%, manganese ore powder 5-10%, ferromanganese-silicon 5-10%, and nickel-magnesium alloy 1-5%; and the sum of the weight percentages of the components is 100%. The 62kg-grade special submerged arc flux for wind power tower cylinder welding meeting a pressure standard has the advantages of meeting large-current welding, easy deslagging, beautiful weld formation, small post-weld machining allowance, and the like, can be used for welding of the wind power tower cylinder meeting the pressure standard, can guarantee the welding quality, and is mainly used for welding of large thick plate steel structures.

The invention discloses a built-in heat exchange double fluidized bed reaction device, which is used for a biomass raw material hydrogen production process, and comprises: a gasification chamber, which is of a cylindrical structure and is provided with a conical surface at the bottom, and the conical surface is provided with a hole for introducing bubbling fluidizing air; the combustion chamber is of a tubular structure and is arranged in the gasification chamber in a sleeved mode, the bottom of the combustion chamber is in an open state, and the combustion chamber is arranged in the conical surface area and used for introducing vertically-upward combustion-supporting air; and the material returning unit is arranged at the middle upper part of the reaction device, is of a hollow disc-shaped structure, is arranged outside the combustion chamber in a sleeving manner, is used for carrying the high-temperature bed material particles from the combustion chamber to the annular gasification area outside the combustion chamber and mixing the high-temperature bed material particles with the biomass raw materials in the gasification area to produce hydrogen, and is provided with a loosening chamber and a material returning chamber. Through the design of the built-in double fluidized beds, the feeding pipe and the return feeder can be prevented from being exposed at room temperature, and the heat loss of the reactor is reduced; and meanwhile, the device can provide enough regeneration time for the bed material under the condition of keeping a relatively high solid conveying rate.

The utility model belongs to the technical field of fryers, and discloses a residue removal device of a fryer, which comprises an oil storage tank, the bottom wall of the inner cavity of the oil storage tank is of a step-shaped structure, the step-shaped structure comprises a first bottom surface, a second bottom surface and an inclined surface, the inclined surface is positioned between the first bottom surface and the second bottom surface, and the first bottom surface is higher than the second bottom surface; an oil discharging pipe is installed in the second bottom face and communicates with the oil storage tank, an electromagnetic valve is installed on the oil discharging pipe, a filter screen frame is installed in an inner cavity of the oil storage tank and driven by a first driving device, a second fixing frame is installed on the outer surface of the oil storage tank, and a second driving device is installed on the second fixing frame; the second driving device can drive the first driving device and the filter screen frame to rotate, and a plurality of circular filter holes are formed in the bottom wall of an inner cavity of the filter screen frame. The automatic oil residue removing device not only can automatically remove oil residues, but also is time-saving and labor-saving, has high residue removing efficiency, and can prolong the service time of frying oil and prevent the frying oil from going bad due to residues.

A cleaning device suitable for bonded slag at a converter mouth comprises a moving part, a lifting part, a lifting plate, a slag cleaning part and an adjusting part. The lifting part is arranged on the moving part; the lifting plate is arranged on the lifting part; the adjusting part is arranged on the lifting plate, and the slag removing part is arranged on the adjusting part; the moving part comprises a counterweight box body, a first hydraulic cylinder and walking wheels; walking wheels are arranged at the four corners of the lower end face of the weight box body. Holes are formed in the four corners of the lower end face of the weight box body, first hydraulic cylinders are arranged in the holes, supporting plates are arranged at the ends of piston rods of the first hydraulic cylinders, and the supporting plates are located outside the holes in the lower end face of the weight box body. According to the utility model, the slag removal efficiency of the converter mouth is improved, and the labor intensity of workers is reduced.