519 results about "Waste oil" patented technology

The invention belongs to the technical field of electric spindles, and particularly relates to an electric spindle and a machine tool. Wherein the machine body assembly is provided with an oil inlet channel and an oil return channel; the shaft core is supported on the machine body assembly through the bearing assembly. One end of the oil injection structure is communicated with the oil inlet channel, and the other end of the oil injection structure is communicated with an inner raceway of the first bearing or the second bearing. A spacer bush arranged on the shaft core in a sleeving mode is arranged between the first bearing and the second bearing, the spacer bush is provided with a flow guide channel and a backflow channel communicated with the oil return channel, and the flow guide channel is provided with an oil throwing inclined face so that waste oil in the first bearing and the second bearing can be guided to the backflow channel. According to the motorized spindle and the machine tool, the flow guide channel is arranged on the spacer bush, the oil slinging slope on the flow guide channel can form forced backflow through centrifugal force, oil return automation is achieved, and old oil and redundant oil are prevented from affecting bearing lubrication and cooling.

The invention relates to the technical field of biological aviation kerosene, and discloses a process for preparing biological aviation kerosene from waste grease. The method comprises the following steps: introducing waste oil into a hydrofining reactor, introducing hydrogen, carrying out a hydrodeoxygenation reaction under the catalysis of a hydrogenation catalyst, carrying out a reaction on the obtained hydrodeoxygenated oil in an isomerization pour point depressing reactor, and finally carrying out isomerization hot high-pressure separation treatment, isomerization cold high-pressure separation treatment and rectification tower segmentation to obtain the biological aviation kerosene. The specific surface area of a carbon matrix of the hydrogenation catalyst is large, the void structure is rich, a large number of Ni-Mo-P active catalytic centers can be exposed, precious metals such as platinum and ruthenium do not need to be added, the hydrodeoxygenation reaction efficiency of waste oil and fat is remarkably improved, the mass fraction of branched paraffin and cycloparaffin in biological aviation fuel is high, and the combustion performance is better.

The application provides a continuous hydrogenation-isomerization method capable of meeting the treatment requirements of biological oils, especially waste oils, using a homogeneous hydrogenation process with strong adaptability to raw materials as a raw material pretreatment process, and matching a high-activity nanometer transition metal sulfide catalyst. On this basis, a catalytic distillation process is used for selective cracking of long-chain alkanes to improve the yield of medium and long-chain alkanes; an ultramicro flow hydrogen gas mixer and a reduced non-noble metal hydrogenation-isomerization catalyst are used to reduce the hydrogen / oil ratio and the energy consumption of the circulating hydrogen system, and to reduce the production cost of the catalyst, so as to finally realize efficient and low-carbon conversion of waste oils, and low-cost and high-selectivity preparation of biological aviation kerosene.

The present invention relates to the technical field of waste lubricating oil treatment, and discloses a non-distillation regeneration apparatus and system, the non-distillation regeneration apparatus comprises: a high pollution lubricating oil pretreatment unit for removing water and other large particle impurities in waste oil; the electro-adsorption unit is used for capturing pollutants such as polar oxides and colloids in oil by adopting a porous conductive framework under the action of a direct-current electric field; the molecular filtering unit is used for carrying out cross-flow filtering by utilizing a ceramic membrane assembly and removing macromolecular non-ideal components; the deep purification unit is filled with a composite adsorbent to further purify the base oil, and the final product quality is ensured. By means of the innovative electro-adsorption refining filter and the multi-stage collaborative purification process, efficient regeneration of the waste lubricating oil under the non-distillation condition is achieved, high-quality base oil can be stably produced, and the method has the remarkable advantages of being energy-saving, environmentally friendly and high in automation degree.

The invention relates to the technical field of catalysis, and particularly discloses a method for preparing pure biodiesel from kitchen waste oil through enzyme catalytic desulfurization. The method comprises the following steps: adding a Sm2O3 / ZrO2 solid acid catalyst into the kitchen waste oil for pretreatment to obtain pretreated waste oil, and then adding lipase into the pretreated waste oil for catalyzing transesterification to obtain the biodiesel. According to the method for preparing the pure biodiesel from the kitchen waste oil through enzyme catalytic desulfurization, in-situ esterification and synchronous desulfurization of free fatty acid can be completed in a single-step reaction, the stability of a conversion reaction is effectively improved, the production process is simplified, and the conversion efficiency of preparing the biodiesel from the kitchen waste oil is improved.

The invention belongs to the field of biofuel preparation through grease hydrogenation, and provides a catalyst for biofuel preparation through waste grease one-step hydrogenation and a preparation method of the catalyst. The catalyst is a non-supported NixMoyWz-kHY catalyst, and the preparation method of the catalyst comprises the following steps: uniformly mixing a nickel source, a molybdenum source and a tungsten source according to a certain proportion, adding deionized water and a reaction aid ethylene glycol, dissolving, heating, stirring, adding an ammonia water-ethanolamine mixed solution, complexing, steaming until the pH value of the solution is 7-8, and filtering to obtain the catalyst. And adding a certain amount of HY molecular sieve powder, methyl cellulose (MC) and citric acid into the solution, filtering the reaction solution, drying the filter cake at 120 DEG C, performing extrusion molding, and roasting to obtain the catalyst. The catalyst provided by the invention effectively solves the problems of high oxygen content, difficulty in deep isomerization and the like in the waste oil and fat, has the functions of hydrodeoxygenation, cracking and isomerization at the same time, and realizes one-step conversion of the waste oil and fat into biological aviation kerosene and biodiesel. Besides, the non-supported catalyst adopted by the invention has high-activity center density, the problems of aging and shedding of the carrier are not needed to be worried about, and the preparation method of the catalyst is simple, environment-friendly and pollution-free, and meets the requirements of industrial preparation.

The natural gas compressor external leakage gas oil mist recovery device disclosed by the application comprises an outer cylinder, a filtering device is arranged in the outer cylinder, a bottom plate is arranged at the bottom opening of the outer cylinder, an oil mist inlet pipe is connected to the bottom plate, and a wind cap is arranged at the top opening of the outer cylinder. The natural gas compressor external leakage gas oil mist recovery device is safe and environmentally friendly, simple in structure, capable of continuously discharging waste gas while effectively recovering oil mist, and capable of eliminating the risk of oil spilling from the emptying opening of the waste oil tank to pollute the environment.

An integrated oil filtering and oil storage device and a fully automatic control method. The integrated oil filtering and oil storage device comprises a waste oil tank (400), a first clean oil tank (200), a second clean oil tank (300) and a vacuum oil filter (100), wherein the waste oil tank (400) is provided with a fourth liquid level switch (401) and a fifth liquid level switch (402), which are used for determining the liquid level in the waste oil tank (400) and controlling the start or stop of an oil replenishment process; the first clean oil tank (200) is provided with a first liquid level switch (201) and a second liquid level switch (202), which are used for determining the liquid level in the first clean oil tank (200) and controlling the start or stop of first oil filtering and oil injection processes; the second clean oil tank (300) is provided with an eighth liquid level switch (302) and a ninth liquid level switch (303), which are used for determining the liquid level of clean oil in the second clean oil tank (300) and controlling the start or stop of second oil filtering and oil injection processes. The device has the functions of oil filtering, waste oil storage and clean oil storage; and by means of the liquid level switches, a fully automatic control process is achieved without requiring manual operation, and the functions of automatic oil filtering, automatic clean oil storage and automatic waste oil storage can be achieved, thereby avoiding the risks of device malfunction and misoperation.

Disclosed are an integrated device for multiphase extraction and tail gas and wastewater treatment and a control method therefor. The integrated device comprises at least one set of small multiphase extraction units connected to an extraction well, a reagent tank storing a solubilizing agent and an oxidizing agent, a resin adsorption tower, an oil-water separator, a photocatalytic reactor, an oil storage tank, a heating system for heating the reagent tank and the oil-water separator and providing high-temperature steam for the resin adsorption tower, and a controller, wherein the reagent tank is separately connected to the extraction well and the photocatalytic reactor. Each multiphase extraction unit comprises a gas-liquid separator, a water ring vacuum pump, and a jet pump, wherein an extracted gas-liquid mixture undergoes gas-liquid separation by means of the gas-liquid separator, a waste gas is conveyed to the resin adsorption tower by means of the water ring vacuum pump, waste liquid and an extracted oil-water mixture are respectively conveyed to the oil-water separator by means of the jet pump, wastewater is conveyed to the photocatalytic reactor, and waste oil is conveyed to the oil storage tank. The present invention effectively ensures the stability and high efficiency of removal while realizing miniaturization.

The utility model relates to the technical field of biodiesel production, in particular to a catalyst separation and recovery device for converting waste oil and fat into biodiesel, which comprises a separation tank. A feed pipe is fixedly connected to the rear position at the upper end of the separation tank, a waste discharge pipe is fixedly connected to the middle position at the lower end of the separation tank, two observation windows are fixedly connected to the front surface of the separation tank, and two adjusting components are arranged at the front position at the upper end of the separation tank. The adjusting components include a positioning sleeve, a connecting seat, a threaded sleeve, a first bevel gear, a second bevel gear, an electric motor, a threaded pipe, a connecting block, a positioning block, a discharge pipe, a first suction pipe, a second suction pipe, a positioning rod and a limiting block; the threaded pipe is driven to lift through the adjusting components, so as to adjust the heights of the first suction pipe and the second suction pipe, so that the floating oil and esterified glycerol can be accurately sucked, the separation quality of the esterified glycerol is effectively improved, the purity of the catalyst recovery is further improved, and the waste of the esterified glycerol is avoided.

The application relates to the field of electrostatic oiling, in particular to a waste oil recycling device of an electrostatic oiling machine, which comprises a box body, a heating pipe is fixedly connected to the bottom of the box body, a first air inlet pipe is communicated with one side of the upper end of the box body, an air outlet pipe is communicated with the other side of the upper end of the box body, an electromagnetic valve is arranged at the top of the box body, carbon dioxide gas is introduced into the first air inlet pipe, the density of the carbon dioxide is greater than that of air, therefore, after the carbon dioxide enters the box body, the carbon dioxide will sink, and the air will be discharged from the air outlet pipe, the heating pipe is started, the heating temperature is set to 100 DEG C, water is evaporated to form water vapor, the water vapor passes through the oil layer and the carbon dioxide layer in sequence, and is discharged from the air outlet pipe, when the other end of the air outlet pipe no longer discharges the water vapor, the water under the oil layer is completely separated, at the moment, only the carbon dioxide and the oil exist in the box body, and after the water molecules and the water vapor in the air are recondensed into water, the water will not return to the box body.

This utility model relates to the field of wind power yaw technology and discloses a waste oil collection device for the maintenance of a wind turbine yaw system. The device includes a yaw main wheel and a track component. The track component includes a calibration plate with a fixing groove at the top. A fixing component is inserted into the inner wall of the fixing groove, and a snap-fit ​​component is fixed to the bottom of the inner wall of the fixing groove. A snap-fit ​​groove is formed at the bottom of the fixing component, and the inner wall of the snap-fit ​​groove is snap-fitted to the surface of the snap-fit ​​component. A sloping shovel is fixed to the side of the fixing component away from the calibration plate, and a backhoe is fixed to the side of the sloping shovel closer to the bottom of the calibration plate. This utility model secures the fixing component to the fixing groove of the calibration plate, ensuring that the bottom of the sloping shovel and the backhoe are tightly fitted to the top of the calibration plate. Thus, during the forward rotation of the yaw main wheel, the sludge on the inner wall of the yaw main wheel is scooped up by the sloping shovel, and the backhoe similarly scoops up the sludge during the reverse rotation. Workers only need to clean the sloping shovel and backhoe periodically.

The present application provides a kind of waste oil transesterification reaction catalytic system, belong to biomass refining field.The preparation steps of catalyst include: in the solution containing Ni (NO3) 2 And Fe (NO3) 3 Carboxymethyl cellulose is added, then urea is added, reaction is carried out, and nano-porous NiFe2O4 is obtained, MgCl2 / ZnCl2 Solution and KOH / K2CO3 Solution are added to NiFe2O4 water dispersion, reaction is carried out, solid product is collected, calcination is carried out, and catalyst is obtained.Catalyst is added to waste oil to carry out catalytic reaction.The present application adopts carboxymethyl cellulose to regulate the crystal form, grain size and dispersity of catalyst carrier, and the obtained solid magnetic catalyst can improve the production efficiency of waste oil for preparing biodiesel.The catalyst has high active site, fast reaction rate, mild reaction condition, can reduce reaction energy consumption and production cost.The catalyst also has good magnetic property, is convenient for recovery.The catalyst has good stability, improves the controllability and stability of reaction.

The utility model provides a vertical water turbine lower oil groove shell disassembling device which comprises a base, a lifting push rod arranged in the middle of the base, a disassembling support arranged at the top end of the lifting push rod, a plurality of rotatable sleeves symmetrically arranged at the top of the disassembling support, a plurality of side plates arranged on the periphery of the base, and an oil collecting groove defined by the side plates. An oil discharging opening is formed in a side plate on one side of the oil collecting groove, a plurality of rolling wheels are arranged at the bottom of the base, the oil collecting groove is used for collecting dripping waste oil, when a suspension type end cover dismounting mode is used, the lower oil groove shell can be placed on the top of the lifting push rod, manual hand holding is not needed, it can be guaranteed that a suspension rod is dismounted at the same time, and the dismounting efficiency is improved. The suspension rod is prevented from deforming due to the heavy lower oil groove shell, secondary use is prevented from being affected, the maintenance convenience of the lower oil groove is improved, and the maintenance efficiency is improved.

The utility model discloses a waste oil collecting box of oil fume purifier, include: main unit, it includes device shell, two vertical frame ropes are fixedly arranged on the top surface of device shell front and back end respectively, two vertical frame rope top surface fixedly set up the ceiling board, the main unit still includes installation component, set up in the working unit of main unit inside, it includes work part and the absorption part at its right side, the working unit is used to carry out absorption treatment to the oil of room, set up in the processing unit of main unit inside, it includes connecting portion and the processing part at its side. The utility model discloses through being provided with the cooperation work of connecting portion and processing part, makes through the oil fume purifier work, when appearing internal waste oil too much, can accurately observe the displacement warning of placing board to the waste oil treatment cleaning of the inside of collecting box to the fast, the whole work does not need to check regularly, will not influence the efficiency of subsequent oil purification.

The utility model discloses transfer equipment applicable to kitchen waste oil processing, which comprises a base, a waste oil storage barrel is arranged at the top of the base, a sealing mechanism for sealing the waste oil storage barrel is arranged at one end of the top of the base, and the sealing mechanism comprises an L-shaped mounting seat fixed at one end of the top of the base. A mounting shell is fixed to one end of the top of the L-shaped mounting base, a first lead screw is rotationally connected to the top of the inner wall of the mounting shell, a moving block is arranged outside the first lead screw, a through notch is formed in the end, close to the waste oil storage barrel, of the mounting shell, and a connecting base is fixed to the end, close to the mounting shell, of the moving block; the other end of the connecting base penetrates through the mounting shell to be fixedly provided with an L-shaped connecting rod, and the other end of the L-shaped connecting rod is fixedly provided with a sealing cover. According to the waste oil storage barrel, waste oil can be effectively prevented from shaking in the waste oil storage barrel, the top of the interior of the waste oil storage barrel can be sealed by arranging the sealing cover, and the situation that workers feel uncomfortable due to the fact that peculiar smells are emitted in the transferring process is avoided.

The present application belongs to the technical field of waste oil recycling, and particularly relates to a method for recycling and processing by-products of edible vegetable oil processing, comprising the following steps: S1, mixing raw materials with deionized water and potassium permanganate, wherein the raw materials comprise soapstock, oil foot and deodorized distillate; S2, performing gradient separation treatment on the mixed liquid obtained in step S1, wherein the gradient separation treatment comprises centrifugal separation, mixed solvent extraction and ultrasonic-assisted separation; and S3, recycling oil and fat products and solid products obtained in step S2. The present application realizes the collaborative treatment of multiple types of by-products, the comprehensive recovery rate of oil and fat reaches more than 85%, the energy consumption is reduced by 35%, the use of strong acid and strong base is avoided, it is green and environmentally friendly, the operation is simple, and it is suitable for industrial application.

The utility model provides a waste oil product regeneration treatment system which comprises a hydrocracking assembly used for receiving waste oil products and hydrocracking the waste oil products; the first atmospheric and vacuum fractionation device is communicated with the hydrocracking assembly and is used for atmospheric and vacuum fractionation operation; the storage assembly is communicated with the first atmospheric and vacuum fractionation device; the oil mixing device is communicated with the first atmospheric and vacuum fractionation device; the hydrofining assembly is communicated with the oil mixing device; and the second atmospheric and vacuum fractionation device is communicated with the hydrofining assembly and the storage assembly. By adopting the waste oil product regeneration treatment system provided by the utility model, phosphorus compounds, chlorine compounds, metal additives, colloid, asphaltene and other impurities in waste oil products can be effectively removed, the regeneration rate of the waste oil products can reach more than 99%, and the problems that the regeneration rate of the waste oil products in the prior art is reduced; meanwhile, secondary pollutants such as waste gas, waste liquid or waste residues are also generated.

The utility model relates to the technical field of waste oil regeneration, and discloses a waste white oil alkali washing device which comprises a tank body, a heating assembly is installed on the periphery of the tank body, a sleeve, a servo motor and a feeding pipe are sequentially and fixedly connected to the top of the tank body from left to right, and a liquid discharging pipe is fixedly connected to the bottom of the tank body. A stirring assembly is installed in the tank body, a top ring is slidably connected to the middle of a sleeve, a filtering barrel is fixedly connected to the bottom of the top ring, a connecting pipe is fixedly connected to the top of the top ring, an elastic assembly is installed in the middle of the top ring, a clamping block is slidably connected to the middle of the top ring, and a clamping groove is formed in the middle of the sleeve; and the middle part of the sleeve is slidably connected with a push rod. According to the utility model, firstly, waste white oil is input through the connecting pipe, and larger impurities can be filtered under the action of the filtering barrel at the bottom of the connecting pipe, so that the mixing efficiency of the waste white oil and a sodium hydroxide aqueous solution is ensured, and the impurities are prevented from blocking the pipeline.

The utility model discloses a kind of deep-frying smoke exhaust heat recovery structure, it is related to heat recovery field.The utility model includes: water storage component, the inside of water storage component is equipped with heat exchange component, one end of heat exchange component is equipped with smoke inlet pipe, the other end of heat exchange component is equipped with separation component, the inner wall of separation component is slidably cooperated with two filter components.The utility model is filtered to flue gas by being equipped with filter component, waste oil is separated from smoke, play the role of purifying flue gas, waste oil is stored in oil tank, so that staff can secondary processing to waste oil, for producing biodiesel or other industrial use, so not only recycle heat energy, but also realize the resource utilization of waste oil, improve overall economic benefit;Through the heat exchange component of being equipped with, heat is introduced into water storage component, water source in water storage component is heated for standby, greatly improve the utilization of heat.

The utility model discloses a waste oil recovery device for a sewage pool of an oil depot, which comprises a waste oil recovery part, a waste oil recovery part, a waste oil recovery part and a waste oil recovery part, and the waste oil recovery part comprises a mounting plate and a hydrophobic oleophylic sponge; the lower end of the mounting plate is fixedly connected with hydrophobic oleophylic sponge; the anti-bending adjusting part comprises a mounting block, a torsional spring, a bracket and a guide wheel; the mounting blocks are symmetrically and fixedly connected to the two ends of the middle of one side of the mounting plate, a torsional spring penetrates through the middle of one end of each mounting block, a support is fixedly connected to the inner side of each torsional spring, and a guide wheel is rotationally connected to the middle of one end of each support. The angle needed by the pumping water pipe can be adjusted in a self-adaptive mode, the bending degree of the connecting position of the pumping water pipe can be effectively reduced, the probability of separation between the pumping water pipe and a connecting pipe is reduced, the damage degree of the pumping water pipe is reduced, and cost is reduced.

The invention discloses a ship waste oil refining waste gas treatment device and method, and relates to the related technical field of waste gas treatment.The ship waste oil refining waste gas treatment device comprises an input port fixed to one side of a spraying tower and communicated with the spraying tower, and a spraying piece connected with a front-end treatment mechanism installed in a separation box and used for separating grease; the spraying part is fixed in the spraying tower, the interior of the spraying tower is divided into a top cavity and a bottom cavity through the spraying part, a first impeller is rotationally installed in the top cavity, a second motor is fixed to the top of the spraying tower, an output shaft of the second motor and the first impeller are coaxially fixed, a discharging opening communicated with the spraying tower is further fixed to one side of the spraying tower, and the discharging opening is located at the position of the top cavity; the filler self-cleaning mechanism is mounted in the spray tower and is connected with the No.1 impeller; the S-shaped cloth conveying belt is matched with the cleaning liquid special for acetic acid-sodium bicarbonate, front-end separation of high-viscosity grease and large-particle impurities in waste gas extracted from waste oil is intensified in a targeted mode, and the grease interception rate is greatly increased.

This application relates to the field of lubricating oil distillation technology, specifically disclosing a device for removing hydrogen sulfide from waste lubricating oil regeneration distillation tail gas and recycling it. The device includes a base, a distillation vessel, and valves. The distillation vessel is fixedly installed on the upper surface of the base. A first connecting pipe is sleeved at the bottom of the distillation vessel, and an oil storage tank is sleeved at the end of the first connecting pipe away from the distillation vessel. A second connecting pipe is provided at the top of the distillation vessel. This invention can pre-treat waste lubricating oil through a pre-treatment component, preventing mechanical impurities and metal particles contained in the waste oil from clogging the equipment channels during distillation heating. A protective component can buffer the pressure inside the distillation vessel, adjusting the gas flow path according to pressure changes. It can promptly issue an alarm when the pressure is high, and has a dual buffering and dual alarm effect, providing sufficient time for maintenance personnel and improving their personal safety.

The application relates to the technical field of oil liquid filtration, and particularly relates to an oil filtering device and a circulating oil washing system for surface lubrication of a rotor of a cooling fan of an automobile, an oil storage device, an oil washing tank connected with the oil storage device, a switching assembly connected with a circulating pump arranged on the oil washing tank, two groups of liquid outlets formed on the switching assembly, two groups of filtering pipes arranged on the oil washing tank and communicated with the two groups of liquid outlets, the switching assembly capable of circulating and pumping waste oil into the two groups of filtering pipes, an oil washing waste discharge pipeline connected with the filtering pipes, cleaning oil capable of entering the filtering pipes through the oil washing waste discharge pipeline, a screen pipe coaxially and rotatably connected with the filtering pipe, and a top of the screen pipe being provided with a follow-up disc, the follow-up disc capable of driving the filtering pipe to rotate when the oil washing waste discharge pipeline in the filtering pipe is conducted, so that non-stop cleaning is realized, and the cleaning speed is improved.

The utility model discloses a waste water treatment matching slag removal and oil separation device which comprises a treatment pond, and an oil separation tank, an isolation tank and a water production tank are sequentially arranged in the treatment pond; the oil separation tank is communicated with the waste liquid barrel, and the water production tank is communicated with the relay barrel; the oil separation groove is communicated with the isolation groove; a slag removal plate and an oil separation plate are arranged in the oil separation groove, the oil separation plate is arranged close to the isolation groove, and the side, facing the oil separation plate, of the slag removal plate is obliquely arranged; the lower end of the oil separation tank is provided with a communicated slag collecting tank, the lower end of the slag collecting tank is provided with a slag discharge port, and the slag discharge port is provided with a slag discharge valve; an oil collecting groove is formed in the outer side wall body of the oil separating groove and communicated with the oil separating groove through an oil flowing opening, the oil flowing opening is higher than the slag removing plate, and the oil collecting groove is connected with a waste oil collecting barrel through an oil discharging opening in the lower end of the oil collecting groove. According to the utility model, integrated equipment is adopted, so that the occupied area is small; operation is simple, and manpower and material resources are saved; the deoiling and deslagging effects are good, blockage is not easily caused, and the failure rate of equipment is reduced.

The invention relates to the technical field of grease chemical industry, and discloses high-iodine oleic acid and a preparation method thereof.The preparation method comprises the steps that waste grease is pretreated; adding a polar modifier into supercritical CO2 to selectively extract oleic acid; adding a polar accelerant compound system into the supercritical system to carry out iodination reaction; refining and separating the product through pressure gradient; and establishing a circulating reiodination system, and returning medium and low iodination products to the iodination step for continuous reaction through a supercritical phase back-mixing technology and precise iodine source addition. According to the method, the oleic acid extraction selectivity coefficient is increased by 40-60% by introducing the polar modifier, the iodination reaction rate is increased by 50-80% through a polar accelerant compounding system, the total yield is increased to 75-85% from 60-70% through a circulating reiodination system, the product purity reaches 95-98%, high-value utilization of the waste grease is achieved, the production cost is greatly reduced by 40-60%, and the method is suitable for industrial production. No organic solvent is left, and the method is environment-friendly.

The utility model provides a fireproof transformation structure of an excitation wire of a coke oven coal charging car, which comprises the excitation wire, a plurality of waste oil pipes are sleeved on the outer side of the excitation wire, and when the number of the waste oil pipes is more than two, the adjacent waste oil pipes are connected and fixed through metal wires. A metal protection tube can be arranged at the position, needing to be further protected, of the excitation wire. According to the utility model, the excitation wire on the coke oven coal charging car is subjected to fireproof modification, so that the fireproof, fire-resistant and high-temperature-resistant performance of the excitation wire can be obviously improved, and the excitation wire can stably operate in complex environments such as severe high temperature, dust, toxic and harmful gas, frequent movement and the like of the coke oven; the shutdown event of the coal charging car caused by the fault of the excitation wire is effectively reduced, so that the normal operation of the coal charging car is ensured, and the production of the coke oven can be efficiently, stably and continuously carried out.

This invention discloses a method for the comprehensive utilization of waste bleaching clay generated from the adsorption and refining of recycled base oil, belonging to the field of hazardous waste resource utilization technology. The method utilizes rotary pyrolysis, rotary calcination, and sulfuric acid acidification as core steps. First, the waste bleaching clay is fed into a rotary pyrolysis furnace for pyrolysis, and the liquid waste oil is recovered by condensation and separation, yielding black waste bleaching clay with an oil content of <0.5%. Then, the black waste bleaching clay is calcined in a rotary calcination kiln to completely remove carbon components, obtaining a pure bleaching clay matrix. Finally, the matrix is ​​mixed with a sulfuric acid solution for acidification and activation, and post-treatment yields activated bleaching clay. Through the synergistic effect of these three processes, 85-95% of the waste oil can be efficiently recovered and recycled for fuel, and the regenerated activated bleaching clay has a specific surface area of ​​180-220 m². 2 / g, decolorization rate of 90-98%, still maintains high adsorption performance after 3-5 cycles, no wastewater discharge throughout the process, stable equipment operation, and both environmental protection and economic benefits, making it suitable for large-scale industrial promotion.

This invention relates to the field of electromechanical equipment technology, specifically to an industrial electromechanical energy-saving and environmentally friendly device, comprising a cabinet; a feed inlet located at the top of the cabinet; a drain outlet located on one side of the cabinet; and a separation structure, which includes a filter plate installed inside the cabinet. An oil removal structure is also provided between the chip removal channel and the chip removal outlet. When waste material enters from the feed inlet, the filter plate filters out the waste liquid in the waste material, and the waste chips are guided to the oil removal structure for oil removal and discharge through the chip removal channel. This invention achieves solid-liquid separation between waste liquid and waste chips through a liquid permeation hole, and sprays water into the filter cartridge through a nozzle to clean the waste chips inside the filter cartridge. With the agitation of the stirring blades, the waste chips are separated from the adsorbed waste oil, effectively solving the problem of residual waste oil on the waste chips, which cannot be separated from the waste chips and leads to waste due to untimely treatment of residual waste oil.

The utility model relates to the technical field of kitchen garbage treatment, and discloses a kitchen garbage oil-water separation device which comprises a box body, a horizontal conveying pipe is arranged at the top of the box body, a feeding cover communicated with the interior of the conveying pipe is fixedly mounted at the top of the left end of the conveying pipe, and a crushing box is arranged above the left end of the conveying pipe; a discharging pipe communicated with the interior of the conveying pipe is fixedly connected to the bottom of the right end of the conveying pipe, two smashing rollers in bilateral symmetry are arranged in the smashing box, a funnel-shaped second discharging cover is fixedly installed at an opening in the bottom of the smashing box, and the bottom end of the second discharging cover is located in an opening in the top end of the feeding cover; a plurality of oil seepage holes are formed in the bottom of the material conveying pipe, an arc-shaped oil collecting groove is formed in the top of the box body and located below the oil seepage holes, and oil and water in kitchen garbage can be effectively separated and collected.