156results about How to "Play a role in stability" patented technology

The invention discloses an inspection robot for an underground coal mine. The inspection robot comprises a lower car body and an upper car body, wherein a four-wheel driving module is matched and arranged on the left and right sides of the lower car body, the four-wheel driving module comprises four wheels, a driving motor and a built-in power supply, and both the driving motor and the built-in power supply are installed in the lower car body. According to the inspection robot, a navigation module is arranged, and a laser radar is constructed, so that an underground environment is scanned, anda three-dimensional image is obtained; then a map is independently constructed by virtue of an LNM module board, and a walking route is independently planned, so that railless autonomous navigation is realized; images are collected in real time by a visible light camera and an infrared thermal imager, and if fog is generated on a lens of the visible light camera, a windscreen wiper independentlyslides, so that the clear images are collected; and if the navigation module fails, manual operation can be switched at a remote monitoring station by virtue of a WIFI control module, and a guaranteeis provided for the use of the whole robot.

The invention relates to the technical field of deep soil filling slope support, and discloses a net-shaped supporting and retaining structure of a deep soil filling slope. The structure comprises a plurality of vertical steel pipes, a plurality of transverse steel pipes and a plurality of inclined steel pipes, wherein the vertical steel pipes are embedded into a slope body along the slope top of the slope to the slope surface of the slope, the transverse steel pipes and the inclined steel pipes are embedded into the slope body from the slope surface of the slope, and the vertical steel pipes, the transverse steel pipes and the inclined steel pipes are subjected to high-pressure grouting respectively to form solidification slurry. The steel pipes are inserted into the slope body and the slope top of the deep soil filling slope from different directions, so that the net-shaped supporting and retaining structure is formed, the steel pipes in three different directions improve the overall stress of the net-shaped supporting and retaining structure, and the bearing capacity of the structure is improved. In addition, pipe bodies of the steel pipes are subjected to high-pressure grouting, so that the effect of reinforcing soil filling is achieved, and the supporting structure with high strength and rigidity is formed. The purposes of supporting and retaining the slope are achieved while the manufacturing cost is reduced.

The invention relates to the technical field of electro-catalytic industrial wastewater treatment, in particular to a method for conducting dynamic three-dimensional electro-catalysis and purification on dyeing wastewater through nanometer microbubbles. The method comprises the steps that pretreatment such as sand filtration, pH value and electric conductivity adjusting and aeration treatment is conducted on the dyeing wastewater, the treated dyeing wastewater is added into an electrolytic tank taking a noble electrode as an anode and taking a stainless steel plate as a cathode, a certain amount of titanium sub-oxide particles is added, a nanometer microbubble aerating device is started for aeration, electro-catalytic oxidation treatment is conducted on the dyeing wastewater for 30 min to 2 h through energizing till the dyeing wastewater is completely decolored and decomposed, and titanium sub-oxide nanoparticles are separated and filtered out through a microfiltration head. According to the method for conducting dynamic three-dimensional electro-catalysis and purification on the dyeing wastewater through the nanometer microbubbles, the problems that in a traditional filled immobilized three-dimensional electrode, hydraulic exchange is insufficient, an electrode short-circuit current is too large, secondary contamination may be caused are eliminated, and positive significance on treating the dyeing wastewater is achieved.

The invention provides a novel metallic soap heat stabilizer. The novel metallic soap heat stabilizer structurally comprises maleimide groups, substituted amide groups, multi-ether groups and metal ions and can be used as the heat stabilizer in a PVC processing process. Compared with an existing heat stabilizer, the novel metallic soap heat stabilizer has the advantages that multiple functional groups are synthesized in the same molecule to achieve a better synergistic effect; due to the fact that multiple ether groups and amide bonds exist in the molecules, Lewis acids such as zinc chloride generated in the processing process can be fast complexed, zinc burning in product processing is reduced greatly, and good long-acting heat stability is achieved; the heat stabilizer is novel in structure, simple in synthesis process route, rich in raw material source, nontoxic, environmentally friendly, better in preliminary and long-acting heat stability as compared with a traditional calcium-zinc stabilizer, low in use amount, good in compatibility with polymer and capable of being used as the upgraded product of the traditional calcium-zinc heat stabilizer; the zinc and calcium soap of themetallic soap heat stabilizer can be used as the main heat stabilizer, and the adding amount of the main stabilizer in the stabilizer is 1-40%.

The invention discloses a steel plate drilling device with fixing and damping functions. The steel plate drilling device comprises a transverse frame, a base, a support frame and a connecting rod, wherein a motor is mounted above the transverse frame; a drill bit is connected with the lower part of the motor; return springs are mounted on the left and right sides of the drill bit; a vertical rod is mounted on the inner side of each of the return springs; a through hole is formed in the outer side of the vertical rod; a fixing bolt is arranged on the outer side of the through hole; a hydraulicrod is connected with the lower part of the fixing bolt; an oil cylinder is mounted below the cylinder rod; a hydraulic valve is mounted at the front end of the oil cylinder; and the base is positioned on the inner side of the oil cylinder. According to the steel plate drilling device with fixing and damping functions, a clamping plate and the connecting rod are mounted, so that the problem that the existing steel plate drilling device cannot be fixed according to the size and the thickness of the steel plate is avoided, the practicality of the steel plate drilling device is improved, the situation that an operator manually fixes the device to cause the hands to be numb is avoided and the drilling efficiency of the steel plate is accelerated.

The invention discloses a high-temperature sterilization negative pressure air purifier comprising a casing, an air inlet is opened on the left side of the casing, an air outlet is opened on the rightside of the casing, a fan is arranged on the left side of the inner chamber of the casing, a high-temperature sterilization chamber is arranged in the inner chamber of the casing, electric heating tubes are fixedly connected to the top and the bottom of the high-temperature sterilization chamber, an activated carbon purification net is connected to the inner chamber of the casing, and a HEPA filter net is movably connected with the inner chamber of the casing and located at the right side of the activated carbon purification net. Through cooperation of the casing, the air inlet, the air outlet, the fan, the high temperature sterilization chamber, the electric heating tubes, the activated carbon purification net, the HEPA filter net, a negative ion super oxygen generator, a PM2.5 sensor, aformaldehyde concentration detector, a control panel, a single-chip microcomputer and a control button, the problems that a traditional purification device is poor and not thorough enough in purification, and cannot detect whether a toxic gas remains in the environment can be solved.

The invention relates to the technical field of environment-friendly equipment, and discloses an environment-friendly road cleaning vehicle with an adjustable cleaning range. The vehicle comprises a frame, wheels are movably connected to the left and right sides of the frame, a connecting plate is fixedly installed at the top of the frame, and a container is fixedly installed at the top of the connecting plate. According to the environment-friendly road cleaning vehicle with the adjustable cleaning range, a double-head hydraulic cylinder runs to drive connecting rods to move horizontally, ground cleaning brushes move left and right during ground cleaning accordingly, and the operation width of the ground cleaning brushes can be conveniently adjusted in the movement process of a vehicle body; meanwhile, a torsion spring has the functions of buffering and stabilizing the connecting rods during horizontal movement; driving motors rotate to drive first sleeve rods to rotate, the work of cleaning away road garbage by the ground cleaning brushes in the rotation process is achieved accordingly, the purpose that the width of the ground cleaning operation is adjustable is achieved, the ground cleaning efficiency is improved, the work time is shortened, and the environment-friendly road cleaning vehicle is convenient for a user to use.

The invention provides a roller-cone polycrystalline diamond compact (PDC) two-stage cutting compound drill bit, comprising a PDC drill bit body, blade wings and roller cones, wherein the blade wingsare arranged at the top end of the PDC drill bit body, and the blade wings and the PDC drill bit body form an integral structure; cutting teeth are embedded and welded at one sides of the top ends ofthe blade wings; gauge protection parts are arranged at the outer sides of the blade wings, and are connected with the blade wings in a welding way; gauge protection teeth are embedded and welded on the outer walls of the gauge protection parts; an oil storage cavity is arranged at the top end of the PDC drill bit body. By improving a compound drill bit, the roller-cone PDC two-stage cutting compound drill bit has the advantages that the structural design is reasonable, layer-by-layer cutting can be realized, a roller-cone drill bit and a PDC drill bit complement the advantages of each other,and the drill bit is good in guiding effect, high in stability, strong in well deviation control ability, less in local hydraulic loss, low in energy consumption of ground power equipment, high in drilling efficiency, low in drilling cost and high in practicality; therefore, the problems and deficiencies raised in the background technology of the invention are effectively solved.

The invention provides a debris flow prevention and treatment system. The debris flow prevention and treatment system can solve the problem that after water and stone of the debris flow are separated,stone blocks block a cover plate with holes and guarantee the debris flow water and stone separation system can durably and effectively play the role. The debris flow prevention and treatment systemcomprise a drainage system and a vibration system. The drainage system comprises a water collecting pool, the cover plate with the holes and a drainage pipe. The vibration system comprises a rotatingrod, a fixing shaft, a pedal, a support block and a spring. The debris flow prevention and treatment system can achieve effective control over the formation process and circulation process of the debris flow and solve the treatment problems of different scales of debris flow gullies. Soil and stone are separated from water by means of the water collecting pool and the drainage pipe, so that the hydrodynamic condition of the debris flow is weakened, and the damage power of the debris flow is reduced. The vibration system utilizes the kinetic energy of large stone blocks in the debris flow as power and can continuously and effectively guarantee that vibration happens, and therefore the cover plate is prevented from being blocked; and in this way, the drainage system can stably play the role,and effective prevention and treatment of the debris flow are achieved.

The invention discloses a mining method for a steep narrow vein tungsten ore body with an unstable surrounding rock. A mining preparation cutting engineering structure adopted by the static shrinkagemethod is used, and a layered propulsion manner from bottom to top is adopted, and the layering height is 1.6-2.2 m. The following steps of hole drilling, charge blasting, stope ventilation and localore removal from an ore chute are included, and the above steps are cyclically performed; after stope room backstopping ends, tunneling of a filling shaft in a stope jack-prop is performed; final oredrawing is organized; and the filling shaft is filled with barren rock. Compared with the prior art, when the mining method is used for local ore removal, a shrinkage pile is kept static and immobile,the effect of a filling body is achieved, a good supporting effect can be achieved on a crumbly strata of the hanging side, deforming damage and falling of the crumbly strata of the hanging side is prevented, and conditions are created for smooth upper mining of a stope room; and ore of a shrinkage stope closes the exposed faces of the hanging and heading side rock, clay minerals such as kaolin and montmorillonite are prevented from making contact with air and water, the weathering speed of the clay minerals is slowed down, and the stability of the rock mass is maintained.

The invention discloses a switch with strong anti-drop performance. The switch comprises a switch body, wherein an anti-drop component is arranged below the switch body and comprises a connection discand an anti-drop foot stool, the connection disc is connected with the bottom of the switch body, the anti-drop foot stool comprises three adjustment component sets distributed along the circumferential direction of the connection disc, each adjustment component comprises a pedestal, a left expansion rod and a right expansion rod are hinged to the pedestal and arranged to be V-shaped, the other end of each of the left expansion link and the right expansion link is hinged to the connection disc. According to the switch provided by the invention, through the arrangement of the anti-drop foot stool and the V-shaped anti-drop foot stool, a triangular structure is formed by the anti-drop foot stool and the connection disc, the functions of preventing dropping and stabilizing are achieved, theproblem that the existing switch is easy to drop and damage due to movement and the other situations during the daily using process is solved, the security performance of the switch is improved, and the usage and movement of the switch become safer.

The invention relates to a renewable nano-porous adsorption material for removing carbon dioxide and a preparation method thereof, and belongs to the technical field of air purification and carbon dioxide removal. The adsorption material comprises the following components in percentage by mass: 30%-70% of a nano porous carrier, 20%-60% of an amine source, 0.1%-30% of a cross-linked polymer and 0.01%-20% of an auxiliary agent, wherein the total mass of the raw material formula of the adsorption material is 100%. Dissolving an amine source in a solvent to form an amine solution, adding the nano-porous carrier, and uniformly mixing; adding a cross-linked polymer, stirring, and carrying out cross-linking reaction for more than 5 minutes; adding an auxiliary agent, and stirring until a gelatinous product is formed; and drying, removing the solvent and molding to obtain the adsorption material. The adsorption material is high in amino content and good in stability, shows excellent carbon dioxide adsorption and renewability, can be used for eliminating carbon dioxide, is long in service life and can be produced in batches.

A preparation method of a novel papermaking sizing agent belongs to the technical field of papermaking sizing agents and includes the steps of: A) preparing raw materials including, by weight, 60-80 parts of stearic acid, 2-3 parts of diethanolamine, and 6-14 parts of diethylenetriamine, and performing a reaction at 140-220 DEG C for 4-6 h, cooling the product to obtain a reaction material liquidfor later use; B) mixing 100 parts by weight of water and 2-10 parts by weight of starch, gelatinizing the starch, cooling the liquid to 50 DEG C to obtain gelatinized starch liquid, or mixing 100 parts by weight of water and 0.5-10 parts of a high-polymer, heating the mixture to 50 DEG C to prepare a mixture liquid; C) adding 5-14 parts of the reaction material liquid in the step A) to the gelatinized starch liquid or the mixture liquid, adding 0.2-1 part of a compound surfactant and dropwise adding 3-10 parts of epoxy chloropropane, heating the mixture to 70 DEG C and performing heat-insulation reaction for 2-5 h, adding 5 parts of water, and cooling the mixture to produce the papermaking sizing agent. The preparation method has simple operations and has gentle and stable reaction processes. The papermaking sizing agent has good sizing effect and better damp-proof effect, and can satisfy demands in process of papermaking with waste pulp.

The invention discloses an anti-sliding cement telegraph pole. The anti-sliding cement telegraph pole comprises a first supporting column, wherein a supporting plate is fixedly connected to the upperend of the first supporting column, a second supporting column is fixedly connected to the upper end of the supporting plate, a rotating shaft is arranged in the second supporting column, the lower end of the rotating shaft is inserted into the upper end of the supporting plate, and the upper end of the rotating shaft is inserted into the top end in the second supporting column; and the rotating shaft is sleeved with a plurality of gears, a first rack is arranged at one end of each gear, a second rack is arranged at the other end of each gear; one ends, far from the gear, of the first racks and the second racks run through the second supporting column; and each first rack and each second rack are meshed with corresponding gears. The anti-sliding cement telegraph pole is convenient to mount, the slipping phenomenon occurring when the cement telegraph pole is mounted by virtue of a connecting rope is avoided, the climbing of a worker is assisted, the slipping phenomenon occurring duringthe climbing of the worker is prevented, and the anti-sliding capacity is effectively improved.

The invention discloses a sofa cover fabric automatic cutting device. The device comprises a device body and a conveyor belt, and the conveyor belt is arranged in the device body; connecting plates are symmetrically fixed in the device body, the bottoms of the connecting plates are connected with fixing frames through connecting columns, and rubber pads are symmetrically fixed on the two sides ofeach connecting column. In the device, first electric telescopic rods are symmetrically arranged in the device body, a pressing plate is fixed at the bottoms of the first electric telescopic rods, andthe bottom of the pressing plate is connected with a plurality of balls in a rolling mode at equal intervals; when a fabric is conveyed on the conveying belt, the first electric telescopic rods are started, so that the two ends of the top of the fabric are arranged at the bottoms of the balls, and the two ends of the fabric can be aligned and conveyed, and it is guaranteed that the fabric is notdeflected during cutting; meanwhile, due to the arrangement of the balls, normal conveying of the fabric can be guaranteed, and the practicability is high.

The invention belongs to the technical field of automobile shock absorption and energy saving, and particularly relates to an automobile shock absorber power generation mechanism based on mechanical transmission. The automobile shock absorber power generation mechanism based on the mechanical transmission comprises a shock absorbing spring, an automobile body support, a spring base, a swinging rod, a fan-shaped gear ring, a power generator, a strut guide rail, a male sliding piece, a female sliding piece, a rocking rod, a first strut, a first sliding block, a second strut and a second sliding block, wherein the shock absorbing spring is mounted between a chassis support and the spring base; the female sliding piece and the male sliding piece are mounted in the shock absorbing spring; the male sliding piece slides up and down in the female sliding piece to exert limiting and stabilizing effects on a shock absorber; the first strut and the second strut are arranged at the lower end of the male sliding piece; the first strut is mounted on the strut guide rail by the first sliding block; and the second strut is mounted on the strut guide rail by the second sliding block. When the male sliding piece moves up and down in the female sliding piece, the first strut and the second strut slide inwards or outwards along the strut guide rail through the first sliding block and the second sliding block respectively, the first sliding block and the second sliding block drive the rocking rod to move to drive the swinging rod to swing, thus the fan-shaped gear ring makes reciprocating swinging around a point where the swinging rod swings to drive the power generator to generate power. The automobile shock absorber power generation mechanism based on the mechanical transmission has a certain energy saving effect.

The invention discloses a mixing device for poultry farming and a mixing method thereof, and particularly relates to the field of poultry farming. The mixing device comprises a mixing barrel, a barrelcover is connected on the top of the mixing barrel; a cleaning mechanism is mounted on the inner side of the mixing barrel; a water injection port is formed in the top of the barrel cover; an atomizing hole is formed in the bottom of the water injection port and located in the inner side of the barrel cover, a rotating mechanism is arranged at the joint of the barrel cover and the mixing barrel,feeding mechanisms are evenly embedded in the outer wall of the middle of the barrel cover, a lifting mechanism is installed on one side of the top of the barrel cover, and a turnover mechanism is installed on the outer side of the middle of the mixing barrel. The mixing device is reasonable in structural design, the feed mixing device is simple in structure and safe and convenient to use, the situation that the surrounding environment is affected due to the fact that granular feed is raised after being fed is avoided in the use process, the overall use effect of the feed mixing device is optimized through cooperation of the rotating mechanism, the lifting mechanism, the turnover mechanism and the cleaning mechanism, operation of a user is facilitated, and efficiency is improved.

The invention belongs to the technical field of fire-fighting equipment, particularly relates to an intelligent fire-fighting robot with a multi-angle adjustment function, and provides the following scheme now to solve the problem about multi-angle adjustment. The intelligent fire-fighting robot comprises a mobile vehicle body and a base, the top of the mobile vehicle body is fixedly connected with the bottom of the base, an auxiliary assembly is arranged at the top of the base, and a shell is arranged at the top of the auxiliary assembly. Through mutual cooperation of the mobile vehicle body, the base, the auxiliary assembly, the shell, a driving device, a supporting column, a spraying assembly, a driving assembly, an arc-shaped sliding groove, a through groove, a through hole, a second sliding groove, a second sliding block, a third sliding groove, a third sliding block, a fixing seat, a pulley, a first bearing seat, a second bearing seat and a supporting rod, the advantage that the robot has the multi-angle adjusting function is achieved, and the problems that a base of an existing intelligent fire-fighting robot does not have the multi-angle adjusting function, the spraying angle of the fire-fighting robot is required to be adjusted for multiple times, and the spraying angle cannot be automatically adjusted are solved.

The invention discloses a storage box for crushing bamboo charcoal raw materials with a drying function, comprising a storage box body, the top and bottom of the inner cavity of the storage box body are fixedly connected with mounting frames, and the two mounting frames are connected to each other. A resistance wire is installed, an operation box is fixedly connected to the bottom of the storage box body, and a motor is arranged on the left side of the inner cavity of the operation box. The present invention is provided with a mounting frame, a resistance wire, an operation box, a motor, a cylinder, a spiral chute, a slide bar, a first slider, a chute, a frame, a support rod, a second slider, a slide rail, a bearing, and a stirring column , the disc and the mixing blade solve the problem that the existing storage box does not have a drying function, and the residual moisture in the bamboo can be dried at the same time during the crushing process of the moso bamboo, thus saving energy during the combustion process. A lot of time has accelerated the progress of bamboo charcoal processing, so it is convenient for users to use and suitable for popularization.

The invention relates to an automatic double-faced railway rail waist polishing machine which comprises a rack as well as a power mechanism, a transmission mechanism, a travelling mechanism, a polishing mechanism and a polishing plane detecting device arranged on the rack, wherein the power mechanism is connected with the transmission mechanism; the transmission mechanism comprises a travelling transmission mechanism and a polishing transmission mechanism; the travelling transmission mechanism is connected with the travelling mechanism; the polishing transmission mechanism is connected with the polishing mechanism; the travelling mechanism comprises a plurality of groups of road wheels and a plurality of groups of guide wheels; the polishing mechanism comprises two polishing groups arranged front and back along a steel rail; each of the polishing groups comprises two groups of polishing units; the two groups of polishing units are arranged on the inner and outer side faces of the polishing steel rail separately; each group of polishing unit is provided with a tension device; each group of polishing unit comprises a polishing shaft and a polishing abrasion wheel; the polishing abrasion wheel is arranged at the tail end of the polishing shaft; and the polishing shaft is connected with the polishing transmission mechanism. The automatic double-faced railway rail waist polishing machine solves the problems that the existing steel rail waist polishing machine is low in polishing efficiency and quality and cannot be automatically straightened.

The invention belongs to the technical field of buoys, and particularly relates to an automatic timing buoy detection device which comprises a buoy, a fixing frame is arranged above the buoy, a wind direction mechanism is arranged on the outer side of the fixing frame, an adjusting mechanism is arranged below the wind direction mechanism, and a mounting mechanism is arranged below the adjusting mechanism. A rubber cushion is arranged below the mounting mechanism, a fixing bolt is arranged on the surface of the rubber cushion, a lifting lug is arranged on one side of the fixing bolt, and a threaded rod is arranged on the surface of the lifting lug. According to the automatic timing buoy detection device, a timer can be used for timing at first, when a certain time is up, an electric lifting sleeve rod can be driven by the timer, then a sampling mechanism is driven by the electric lifting sleeve rod, and then a sampling door is driven by a first electric pulley, so that the sampling door is opened, water resources with different depths can be conveniently sampled, then the water resources are sent to a detection layer, therefore, the water resources can be conveniently, automatically and regularly detected, and subsequent normal use is facilitated.

The invention discloses a quickly-mountable municipal traffic barrier which comprises vertical columns. Supporting legs are fixedly connected to bottoms of the vertical columns, first transverse railings are arranged at the top and the bottom of the right side of the vertical columns, second transverse railings are arranged at the top and the bottom of the left side of the vertical columns, supporting columns are arranged between the first transverse railings and between the second transverse railings, and connection pipes are fixedly connected to the top and bottom of the right side of the vertical columns. By joint use of the vertical columns, the supporting legs, the first transverse railings, the second transverse railings, the supporting columns, the connection pipes, connection blocks, supporting plates, telescopic rods, springs, connection plates, sliders, slide rails, clamping blocks, through holes and clamping grooves, the problem of failure in quick mounting of existing municipal traffic barriers is solved. In a mounting process of the quickly-mountable municipal traffic barrier, time of mounting personnel is greatly saved, traffic barrier mounting speed is increased, andaccordingly labor consumption of the mounting personnel is reduced.

The invention discloses an LCR (inductance, capacitance and resistance) material counting device. The LCR material counting device comprises a feed conveying belt and a material counting machine body,wherein a support is arranged above the feed conveying belt, two groups of stop blocks are arranged on the support, a first motor is installed on one side, far away from the other stop block, of onegroup of the stop blocks, a first screw rod is rotatably connected between the two stop blocks, one end of the first screw rod runs through the stop blocks, and is connected with the first motor, a slide plate is connected with the periphery of the first screw rod through a thread in a sleeving mode, the slide plate is slidably installed on the support, a lifting mechanism is arranged at the bottom end of the slide plate, a clamping mechanism is connected with the bottom end of the lifting mechanism, and a material platform is arranged in the material counting machine body. The LCR material counting device is reasonable in structure design, uses an automatic device to replace manual work for carrying material trays, saves labor cost, and improves work efficiency.

The invention discloses an automotive anti-collision beam great in damping effect. The beam includes a shell body, the two sides of the bottom of the shell body are both fixedly connected with connecting blocks, the bottom of each connecting block is fixedly connected with a mounting plate, the top of each mounting plate is provided with a mounting hole, an inner cavity of the shell body is provided with a movable shell, three fixing rods are fixedly connected with the top of the inner cavity of the shell body, each fixing rod is sleeved with a spring, and the top of each fixing rod penetratesinto an inner cavity of the movable shell and is fixedly connected with a limit plate. Through arrangement and cooperative use of the shell body, the fixing rods, the mounting holes, the mounting plates, the springs, retractable rods, sleeve shells, sliding plates, openings, lifting shells, through holes, the limit plates, sliding plates, the connecting blocks, a reinforced plate, supporting plates and the movable shell, the problem that existing automotive anti-collision beams are poor in damping effect is solved. The automotive anti-collision beam great in damping effect has the advantagesof being great in damping effect, capable of providing convenience for users to use, and worthy of popularization.

The invention discloses an oxalic acid catalyst and nitric acid catalyst general catalytic degreasing furnace, and relates to the technical field of catalytic degreasing furnaces. The oxalic acid catalyst and nitric acid catalyst general catalytic degreasing furnace comprises an oxalic acid conveying device, a fixing box, a mounting frame, a bottom box, an operation panel and a furnace body; a furnace body acid inlet is formed in the top of the furnace body, the bottom of the mounting frame and one side of the top of the fixing box are fixedly connected, the oxalic acid conveying device comprises an oxalic acid storage chamber and an oxalic acid volatilization chamber, the bottom of the oxalic acid storage chamber is fixedly connected with the top of the mounting frame through a support, an oxalic acid extrusion device is fixedly connected into the mounting frame, and the top of the oxalic acid volatilization chamber communicates with a first abut-joint heating pipe. The oxalic acid catalyst and nitric acid catalyst general catalytic degreasing furnace generally uses concentrated nitric acid and an oxalic acid catalyst on one device, a user can selects the proper catalyst for degreasing according to product actual needs, different use needs are met, and the practicability of the catalytic degreasing furnace is greatly improved.

The invention discloses bilirubin nanoparticles for treating acute pancreatitis and a preparation method thereof. The nanoparticles are mainly composed of silk fibroin, bilirubin, genipin and ceramide. The method comprises the steps that firstly, the bilirubin, the genipin and the ceramide are dissolved in a mixed organic reagent; secondly, the silk fibroin is dissolved in an aqueous solution, then the mixed solution of the bilirubin, the genipin and the ceramide is slowly added into the silk fibroin solution dropwise and continuously stirred, the organic solvent is removed through dialysis, and an obtained nanoparticle suspension is diluted with pure water to obtain the bilirubin nanoparticles. The bilirubin nanoparticles can be used for treating acute pancreatitis and relieving tissue edema caused by pancreatitis, can be applied to preparation of medicines for treating acute pancreatitis, and has wide clinical application prospects.