86results about How to "Reduce chances of direct contact" patented technology

The invention provides a method for manufacturing a metal surface self-cleaning high-protection film. The method comprises two steps of molybdate solution soaking treatment and plant corrosion inhibitor-low-surface-energy material collaborative modification treatment. According to the molybdate solution soaking treatment step, a composite film which is of a specific micro / nano coarse structure, has the good protection effect and is composed of metallic oxides, molybdenum oxide and metal molybdate can be formed on a metal surface, and therefore according to the plant corrosion inhibitor-low-surface-energy material collaborative modification treatment step, efficient green plant corrosion inhibitors can be introduced into the film, and the protection effect can be obviously improved. Due to the hydrophobization effect of the low-surface-energy material on the film, the film has the self-cleaning function, the pollution can be avoided, the probability of direct contact of metal materials and corrosive media can be reduced, and the protection effect of the film can be further improved. The method has the advantages of being environmentally friendly, simple in process, convenient to operate, capable of being easily and industrially produced in a large-scale mode and the like.

The invention belongs to the technical field of food processing, and in particular relates to a flower cake stuffing and a production process thereof. The stuffing comprises flower sauce and other auxiliary materials, and is characterized by comprising the following components in part by weight: 40 to 45 parts of rose sauce, 20 to 25 parts of candied wax gourd, 5 to 10 parts of cooked powder and 10 to 15 parts of honey. By optimizing the formula of the traditional cake stuffing and the processing technology, the flavor of the cake is improved, the processing time is shortened, and the white granulated sugar content is reduced, so the cost is reduced, the ratio of the rose sauce to the candied wax gourd in the stuffing is optimized, the stuffing preparation process is improved, mechanical quantitative stuffing preparation is realized on the premise of ensuring the viscosity and mouthfeel of the stuffing, the production efficiency is improved, pollution caused by manual stuffing preparation is reduced, the shelf life of the cake foods is prolonged, and a new field is opened for the cake industry.

The invention relates to extracting and drying methods in the process for preparing uhmwpe fiber, belonging to the field for polymers preparing technology. The method comprises that the uhmwpe powder, assistant and solvent is solidified by extruding after they are mixed in uniformity and solved sufficiently; the solvent is eliminated in extracting process and the extraction agent is eliminated by drying technology; the final product is formed by heat drawing. It is characterized in that because dichloromethane is used as the extraction agent, there is good safety, low boiling point and it is eliminated easily. Because countercurrent extraction operation is adopted in the extracting process and there is no ultrasonic wave, it is provided with low drying temperature, simple technology, high intensity of fiber product, high modulus and low oil percentage of fiber.

The invention discloses a continuous synthesis method of polyether. The continuous synthesis method comprises the following steps: adding low molecular weight polyether into a reaction kettle, adding a DMC (Dimethyl Carbonate) catalyst, ventilating an alkyleneoxide compound after nitrogen gas displacement, and carrying out induced reaction, wherein the DMC catalyst is indicated to be induced when pressure is obviously lowered and temperature is quickly increased; and then, with small molecule alcohol as an initiator, continuously adding the alkyleneoxide compound into the reaction kettle after mixing with the initiator, and continuously adding the DMC catalyst by an external circulating pipeline to continuously synthesize out the polyether product. According to the continuous synthesis method disclosed by the invention, the applied initiator is low in price, and the obtained polyether product is wide in molecular weight range, high in construction ratio and narrow in molecular weight distribution..

The invention discloses an adsorption desulphurization catalyst and a preparation method thereof. The catalyst mainly comprises: 60.0-80.0 wt% of a zinc oxide, 1.0-6.0 wt% of a nickel oxide, 1.0-5.0 wt% of a zirconia, 12.0-30.0 wt% of a ZSM-5 / MCM-41 composite molecular sieve, and 1.0-6.0 wt% of SiO2. The catalyst has the characteristics of high sulfur capacity, good regeneration and stabilization performance, substantially unsaturated olefin and substantially no loss of octane value, and is especially suitable for an FCC gasoline deep desulfurization process.

The invention relates to a material and a preparation method thereof, and particularly relates to a long glass fiber reinforced polypropylene material adopting a foaming technique and a preparation method thereof, belonging to the technical field of materials. The long glass fiber reinforced polypropylene material comprises the following components by mass percent: 30-75wt% of polypropylene, 20-60wt% of long glass fiber, 0.5-5wt% of chemical foaming agent and 1-5wt% of compatibilizer. The viscosity of the resin is further reduced by adopting a micro-foaming technology, meanwhile, the chance that a glass fiber strong dispersing device reduces or avoids direct contact of a glass fiber bundle and a roller or a convex part is reduced, the damage to the glass fiber is reduced, and the traction resistance of a material bar is reduced. The long glass fiber reinforced polypropylene material has the beneficial effects that the product performance, quality stability and production efficiency are improved when the impregnation effect on the glass fiber caused by polypropylene resin is ensured.

Provided is a photovoltaic polyolefin encapsulating adhesive film. A stabilizer is added to the encapsulating adhesive film. The encapsulating adhesive film comprises, by mass parts, 100 parts of olefin copolymer, 0.1-3 parts of crosslinking agent, 0.1-3 parts of auxiliary crosslinking agent, 0.05-2 parts of anti-aging agent, 0.05-2 parts of silane coupling agent, and 0.05-4 parts of stabilizer. According to the photovoltaic polyolefin encapsulating adhesive film, when an assembly is laminated, a long-chain alkane or a long-chain siloxane protective layer is formed at the interface between glass and the polyolefin encapsulating adhesive film, thereby improving the hydrophobicity of the glass; the chance of direct contact of moisture with the glass is significantly reduced, thereby reducingthe salting out of the glass in the assembly hygrothermal aging process, the pH of the interface between the glass and the polyolefin encapsulating adhesive film is maintained between 7 and 11, and the adhesion between the polyolefin encapsulating adhesive film and the glass is maintained.

The invention provides a preparation method for a super hydrophobic protective film on a surface of a high strength aluminum alloy. The preparation method comprises two steps of hydrothermally forming a film and hydrophobizing a film layer, wherein a solution used in the step of hydrothermally forming the film is a rare earth nitrate water solution, so that a rare earth oxide film with a good protection effect for the high strength aluminum alloy and a specific nanometer / micron rough structure can be obtained; and the nanometer / micron rough structure of the rare earth oxide film lays a foundation for achieving a super hydrophobic function of the film layer, so that the super hydrophobic function of the film layer can be achieved by hydrophobizing the film layer, thereby reducing probability for direct contact between the high strength aluminum alloy and a corrosion medium so as to further enhance the protection effect of the film layer. The super hydrophobic protective film on the surface of the high strength aluminum alloy prepared by the preparation method has good super hydrophobic and protection functions, and is expected to be widely applied. The preparation method has characteristics of greennesss and environment-friendliness, simple process, convenience for operation and easiness for large-scale industrial production and the like.

The invention provides an inkjet recording ink composition and recorded matter, the inkjet recording ink composition can prevent hardening process even if inorganic pigment settled, and fast redispersion can be realized by simple stirring. The ink jet recording ink composition includes an inorganic pigment (A) having an average particle diameter (DA) of equal to or more than 200 nm and an inorganic particle (B). The inorganic particle (B) is preferably a silica particle or an alumina particle.

The invention provides a novel multifunctional massager and belongs to the technical field of medical apparatuses and instruments. The novel multifunctional massager comprises a massaging wheel I, a handle and a massaging wheel II and further comprises vibrating heads, bearings, electric wires, connecting arms, a switch I, a battery, a switch II, liquid leakage holes, infrared lamps, heating wires, protrusions and a liquid adding hole, wherein two ends of the handle are respectively connected with the massaging wheel I and the massaging wheel II through the connecting arms, the infrared lamps and the heating wires are arranged in the massaging wheel I and the massaging wheel II respectively, and the massaging wheel I and the massaging wheel II are connected with the battery in the handle through the electric wires. The novel multifunctional massager has the advantages that the novel multifunctional massager is simple in structure and reasonable in design, integrates pharmaceutical therapy and physical therapy, more effectively dredges channels, invigorates blood circulation, relaxes muscles and relieves the pain, can reduce the physical exhaustion of a person performing massage and save time and effort, is clean and hygienic and reduces the direct contact probability. In addition, the heating wires and the infrared lamps accelerate blood circulation of massaged positions, the effect is improved, and the time is shortened.

The application of the invention discloses an automatic counting device for microorganism colonies. The automatic counting device for microorganism colonies comprises a detection platform, wherein a first air cylinder is arranged on one side of the detection platform, and one end close to the detection platform, of the first air cylinder, extends to form a first air pressure rod; a clamping deviceis fixedly connected to the other end of the first air pressure rod; a first support post and a second support post are respectively arranged on two sides close to the clamping device, of the first air cylinder; a first support rod is fixedly connected to the upper end of the first support post, and a video camera unit is fixedly connected to the other end of the first support rod; a second support rod is arranged at the upper end of the second support post, and a light supplement device is fixedly connected to the bottom of the video camera unit at the other end of the second support rod; and a combination air cylinder is arranged on the other side of the detection platform. According to the automatic counting device, a full automatic culture dish detection device is adopted, so that improvement efficiency is facilitated, the mistake rate of artificial inspection is reduced, and the labor intensity is reduced.

The invention discloses equipment for harmless processing of container sterilizing gas. The equipment comprises a magnetic attraction type gas suction device, a gas suction pipeline and a sterilizing gas harmless processing car. One end of the gas suction pipeline is connected with the magnetic attraction type gas suction device, and the other end of the gas suction pipeline is connected with the sterilizing gas harmless processing car. The sterilizing gas harmless processing car is a body device of the equipment. After the equipment is started, toxic gas sequentially passes through a first gas adsorption chamber, a second gas adsorption chamber and a third gas adsorption chamber in the sterilizing gas harmless processing car under the effect of a centrifugal fan to be harmlessly processed. The equipment has the main functions of harmlessly processing residual container sterilizing gas, reducing the pollution of toxic gas to air and water body and relieving the global greenhouse effect; by means of a gas suction type toxin dispersing mode, personal safety of site harmless processing personnel can be effectively guaranteed, toxin dispersing time can be greatly shortened, and the equipment has the advantages of shortening container retention time, increasing customs passing speed, reducing logistics cost for import and export enterprises and the like.

The invention discloses a classifying and recovering integration apparatus for turning waste residues. The apparatus comprises a trapezoidal tank block, a collecting cavity is formed in the trapezoidal tank block, a discharging device is arranged in the collecting cavity, the discharging device comprises pushing plates which are symmetrically and rotatably connected to the inner wall of the bottomend of the collecting cavity left and right and are provided with torsional springs, and arc-shaped plates which are arranged at the upper ends of the pushing plates and are abutted against the innerwall of the collecting cavity. A sieve plate and the surface of the sieve plate can slide and deform to form six groups of gullies arranged in an array in order to filter and screen a waste liquid and waste materials, the waste materials left on a filter plate are tidied through the gullies to achieve orderly throw-in work, a residual cutting waste liquid on the waste materials is accelerated through a heating structure, and manual intervention is not needed in the whole process, so the probability that the waste liquid makes direct contact with human skin surface tissues is effectively reduced, and the safety coefficient of apparatus cleaning after turning is increased.

The invention provides a test strip based on release of a labeled antibody on a chromatographic membrane and a preparation method. The preparation method comprises the following steps that a labeled antibody release line is formed on the chromatographic membrane; a capture antibody line is formed on the chromatographic membrane; and a secondary antibody line is formed on the chromatographic membrane, and the capture antibody line is located between the labeled antibody release line and the secondary antibody line to obtain a test strip. The step of forming the labeled antibody release line onthe chromatographic membrane comprises the following substeps of mixing a labeled antibody with an adsorption solution to form a first mixed solution, scribing and drying the chromatographic membraneby using the first mixed solution to form a labeled antibody release line, wherein the adsorption liquid comprises non-specific protein, a surfactant and a phosphate buffer solution, or forming a non-specific protein layer on the chromatographic membrane, and forming a labeled antibody release line on the non-specific protein layer. The labeled antibody can be released from the chromatographic membrane in time when a sample solution flows through the chromatographic membrane, so that reversible adsorption and release of the labeled antibody on the chromatographic membrane can be realized, an antibody binding pad is omitted, and the test precision is improved.

The invention relates to a glimepiride intermediate preparation method which comprises the following steps: 1, using ethyl acetoacetate as a raw material and generating 2-ethyl-3-oxobutanoate through bromoethane substitution reaction in the presence of strong-base sodium ethoxide; 2, generating 2-ethyl-3-hydroxy-3-cyanoethyl butyrate through NaCN / sulfuric acid cyaniding system reaction in a cyaniding reaction kettle; 3, cyclization generating 3-ethyl-4-methyl-1-acetyl-3-pyrroline-2-one through high-pressure catalytic hydrogenation; 4, alkali hydrolyzing to generate 3-ethyl-4-methyl-3-pyrroline-2-one through sodium carbonate solution; 5, extracting 3-ethyl-4-methyl-3-pyrroline-2-one through ethyl acetate and recrystallizing and refining to obtain a product. The method can improve product yield, also improves technological operation convenience and reduces pollution.

The invention provides a seven-axis stirring grinder, and relates to the field of grinding equipment. The seven-axis stirring grinder comprises a spiral lifting shaft, a stirring assembly and a main cylinder body, and both the stirring assembly and the spiral lifting shaft are located in the main cylinder body. The spiral lifting shaft comprises a first rotating shaft and blades spirally arrangedaround the first rotating shaft. The first rotating shaft drives the blades to rotate in the rotation process, materials at the bottom can rise gradually along the spiral blades, the materials constantly move from bottom to up along the spiral blades, the materials at the bottom can obtain more sufficient grinding opportunities, and the grinding sufficiency of the materials at the bottom is greatly improved. The stirring assembly comprises cutters and six second rotating shafts circumferentially arranged around the first rotating shaft at intervals. The cutters are arranged on the second rotating shafts at intervals in the length directions and the peripheral directions of the second rotating shafts. A groove is formed in one side of each cutter, and the opening directions of the grooves are the same as the rotating direction of the stirring assembly. In use, the grooves are filled with grinding media, the abrasion to the cutters can be reduced, and the service life of the cutters is prolonged.

The invention discloses a device and method for detecting the flowing speed of an inflow airflow of a biosafety cabinet. The device comprises a supporting rod, and a first clamping plate is verticallyfixed at one end of the supporting rod; a second clamping plate penetrates through the supporting rod; the second clamping plate is slidably arranged on the supporting rod; a fastening device is fixedly arranged on one side of the second clamping plate; an airflow detection device is arranged between the first clamping plate and the second clamping plate; the airflow detection device is arrangedon the supporting rod in a penetrating mode and comprises a connecting plate, the upper portion of the connecting plate is in an inverted-U shape, the connecting plate is hung on the supporting rod, atransparent box is arranged on the connecting plate, horizontal bubbles are distributed in the transparent box, a clamp is fixed to the lower end of the supporting plate, and an anemograph probe is clamped at the lower end opening of the clamp. The device is simple in structure and convenient to install and use, the detection method is convenient in detection, the detection time is saved, the harm to the detection personnel is greatly reduced, and the detection result is accurate.

The invention relates to preparation of a car fender and particularly relates to a fender for a waste rubber powder car and a preparation method of the fender. The method comprises the following steps: carrying out blending extrusion, granulating and drying on undesulfured waste rubber powder, polyolefin, chlorinated polyethylene, a compatilizer, a flow modifier 1 and a flow modifier 2; melting obtained particles to embed into an enhancement layer until the molten resin is molded to obtain an intermediate layer of the car fender; and combining an outer layer and an inner layer with the intermediate layer by adopting a hot laminating mode to obtain the fender for the waste rubber powder car.

The invention discloses a preparation method of a single-side spraying type anti-microbial heating fabric, and the anti-microbial heating multifunctional fabric prepared by adopting the method. In thefabric prepared by the method, the particle size of contained nano silver ranges from 30 to 50nm, and the concentration of capsaicin ranges from 0.8 to 2 percent by weight. By utilizing a spraying method, a dopamine matrix can be uniformly dispersed on the surface of the fabric, so that the self-polymerization of dopamine can be effectively prevented; the nano silver is complexed with an imino group in a capsaicin molecular structure, so that the combination degree of an anti-microbial agent on the surface of the fabric is improved; hydroxyl at the end of a capsaicin molecular chain and the dopamine matrix form a hydrogen bond, a long chain structure thereof tightly wraps the dopamine / the nano silver, and the long chain structure, the dopamine and the nano silver form an organic whole. According to the prepared fabric, the feature of poor laundering durability of a traditional soaking method is greatly improved, and the fabric with a single-side coating has better air permeability compared with a fabric produced by a traditional process.

The invention relates to the technical field of die machining, in particular to a punch forming die capable of optimizing the surface of a workpiece. The punch forming die comprises a supporting mechanism and a punching mechanism arranged at the top of the supporting mechanism, the supporting mechanism comprises a supporting base, a supporting plate is arranged at the top of the supporting base, acontaining cavity is formed in the supporting plate, the containing cavity is used for containing a die to be stamped, and the punching mechanism comprises an optimizing device. By means of the punching and grinding integrated design, the number of the operation steps is greatly reduced, in addition, the workpiece can be ground by pushing rolling rollers, the opportunity that workers make directcontact with the die is reduced, therefore, both the workers and the die are protected, and the safety of the whole operation is improved.

The invention relates to a removing hook for a ureteral stent tube. The removing hook comprises a hooked head (2), a rod body (1) and a handle (6), wherein the hooked head (2) comprises an upper bending arc section (3) and a lower bending arc section (4), and the tangent line of the tail end of the hooked head (2) points to one side of the connection position of the upper bending arc section (3) and the lower bending arc section (4); an opening (5) is formed between the hooked head (2) and the rod body (1); the part, from the middle of the rod body (1) to the handle (6), of the rod body (1) is flat; a marker (7) is arranged on the handle (6); the marker (7) and the opening (5) are located in the same plane, or both arranged on the same side of the rod body (1), or arranged on two corresponding sides of the rod body (1). The removing hook is reasonable in design, safe and convenient to operate and high in success rate.

The invention relates to a flavored sheet, which comprises a substrate, wherein the surface of the substrate is provided with indents which are internally dented along the thickness direction, the indents form an embossed pattern on the surface of the substrate, the indents are filled with a solid or semi-solid flavoring agent, and the solid or semi-solid flavoring agent is used for flavoring the substrate. Compared with the prior art, the flavored sheet disclosed by the invention is durable in fragrance. The invention further relates to a flavoring process of a sheet to the flavored.

The invention provides a multifunctional safe operation platform for drilling and processing automobile parts. The multifunctional safe operation platform comprises a bottom plate and a workpiece. Themultifunctional safe operation platform is characterized in that a material shifting mechanism is slidably mounted on the top plane of the bottom plate, and a top supporting table is fixedly arrangedat the top of the material shifting mechanism. According to the multifunctional safe operation platform for drilling and processing automobile parts, the front side wall and the rear side wall of thematerial shifting mechanism are fixedly connected with the bottom of the upper top supporting table through vertical supporting columns respectively, and the lower end of the supporting column is tangent to the top plane of the bottom plate, a sliding rail B is longitudinally arranged in the middle of the top plane of the material shifting mechanism, a handle is vertically arranged in the middleof the left end side edge of the material shifting mechanism, after the processing is finished, the material shifting mechanism can be pulled out from the lower portion of a drilling device through the handle on the material shifting mechanism, so that the workpiece is conveniently taken out, the operation frequency in the area below the drilling device is reduced, the occurrence of potential safety hazards is avoided, and the safety operation coefficient is improved.

The invention belongs to the technical field of food processing, and in particular relates to a flower cake stuffing and a production process thereof. The stuffing comprises flower sauce and other auxiliary materials, and is characterized by comprising the following components in part by weight: 40 to 45 parts of rose sauce, 20 to 25 parts of candied wax gourd, 5 to 10 parts of cooked powder and 10 to 15 parts of honey. By optimizing the formula of the traditional cake stuffing and the processing technology, the flavor of the cake is improved, the processing time is shortened, and the white granulated sugar content is reduced, so the cost is reduced, the ratio of the rose sauce to the candied wax gourd in the stuffing is optimized, the stuffing preparation process is improved, mechanical quantitative stuffing preparation is realized on the premise of ensuring the viscosity and mouthfeel of the stuffing, the production efficiency is improved, pollution caused by manual stuffing preparation is reduced, the shelf life of the cake foods is prolonged, and a new field is opened for the cake industry.

The invention relates to an LED assembly, a quantum dot LED light-emitting part, a quantum dot LED packaging structure and display equipment. The LED assembly comprises an LED chip, and a light-transmitting quantum dot containing structure with a plurality of protrusions in the surface is arranged on one side face of the LED chip. The light-transmitting quantum dot containing structure is a porousstructure; and the light-transmitting quantum dot containing structure is made of an organic polymer or an inorganic substance. A material capable of forming a porous structure through etching treatment is utilized to construct the light-transmitting quantum dot containing structure with high light transmittance by taking a quantum dot as a light source, so that the quantum dot can be arranged ina specific form in a three-dimensional space, and in addition, by combining a multiple refraction guide path provided for light, the quantum dot in the whole region is prevented from being systematically quenched due to quenching blackening caused by excessive blue light irradiation on the quantum dot in a local range; the blue light absorption rate of the quantum dots is effectively improved, the actual usage amount of the quantum dots can be effectively reduced under the same brightness while the high light conversion rate is achieved, and therefore the cost is reduced.

The invention discloses an automatic sewage treatment device and method applied to the circuit board production industry. The automatic sewage treatment device comprises a sewage flocculation pool, asewage sedimentation pool and a flocculation liquid preparation tank, and further comprises a flocculation liquid stirring device located in a tank body of the flocculation liquid preparation tank, and a flocculant feeding device located outside the tank body of the flocculation liquid preparation tank; a sewage partition plate is arranged in a pool body of the sewage sedimentation pool; and sewage stirring and heating devices and flocculation liquid spraying devices are arranged in a pool body of the sewage flocculation pool. According to the automatic sewage treatment device applied to the circuit board production industry, sewage in a sewage treatment pool is heated to the appropriate temperature, thus flocculant powder is dissolved in the sewage better, and the chance of direct contactbetween an operator and the flocculant powder and the sewage is reduced.

Provided is a method for preparing a high-power and long-service-life lithium iron phosphate anode material. The lithium iron phosphate anode material is of a core-shell structure, lithium iron phosphate is adopted as a core, the first layer of a shell is a carbon layer, and the outermost layer is a free radical composite layer which is composed of a free radical polymer, a conductive agent and a dopant. The method comprises the following steps that 1, a free radial mixed solution is prepared; 2, a lithium iron phosphate precursor is prepared; 3, a lithium iron phosphate composite is prepared. According to the method, by means of the advantages that the free radical polymer is high in ion transmission rate and stable in structure and the character that the conductive agent of the anode material is high in conductivity, the high-rate charge and discharge capacity and structural stability of the anode material in the circulating process are improved, the discharge voltage platform of the material in a lithium ion battery is improved, the synergistic effect is achieved between the material and the carbon layer, and the energy density and rate performance of the lithium ion battery are improved. The lithium ion battery prepared from the material is suitable for the field of hybrid power electric automobiles.

The invention discloses a compound nutrient enhancer embedded with choline hydrogen tartrate and a preparation method thereof, wherein the preparation method comprises the steps: S1, weighing cholinehydrogen tartrate and corn starch, dissolving in water, and heating and stirring to dissolve, to obtain a solution A; S2, weighing starch sodium octenylsuccinate and mono-diglycerol fatty acid ester,dissolving in water, and heating and stirring to dissolve, to obtain a solution B; S3, mixing and stirring the solution A and the solution B, to obtain a solution C; S4, emulsifying and stirring the solution C at room temperature to obtain an emulsified solution D; S5, weighing maltodextrin, adding maltodextrin into the emulsified solution D, and heating and stirring to obtain an emulsified solution E; S6, carrying out spray drying treatment of the emulsified solution E to obtain powder; and S7, weighing calcium triphosphate, and mixing with the powder to obtain the compound nutrient enhancer.The prepared choline hydrogen tartrate compound nutrient enhancer is an embedding product, does not easily absorb moisture and is not easily caked, has high stability and good mixing property, and cannot react with other raw materials when being mixed with other raw materials.

The invention discloses an abandoned steel pipe sorting device for constructional engineering, and belongs to the field of constructional engineering equipment. A guide hole is vertically fixed to thetop of a base; two clamping devices are fixed to the lower portions of a first bracket and a fourth bracket correspondingly; a stepping motor is vertically fixed to the top of a stepping motor base,and a transmission device is fixed to the upper portion of a stepping motor spindle; and a second storage barrel is fixed to the left side of the base. According to the abandoned steel pipe sorting device, a camera takes a picture of a steel pipe arranged on a limiting bracket in a sleeving mode and uploads the picture to the controller, the controller obtains the length of the steel pipe throughimage identification and processing and sends a corresponding pulse signal to the stepping motor so that the stepping motor can drive the transmission device to rotate to the upper portion of the storage barrel with the corresponding length, through mutual action of a first electromagnet, a second electromagnet and the stepping motor, the steel pipe falls into the lower storage barrel, accordingly, sorting operation of leftovers of the steel pipe is completed, the labor of manpower is decreased, and the safety of workers is ensured.