32results about How to "No secondary treatment required" patented technology

The invention discloses an inserting cutting type variable diameter banana shaft removing and combing cutter self-adaptive to the diameter of a banana spike rod. The cutter comprises hard combing blades, soft combing blades, universal ball bearings and a rack, wherein one side of each soft combing blade extends to form a cutter arm, and a limiting frame is arranged on each hard combing blade; the number of the hard combing blades and the number of the soft combing blades are plural, the body of one hard combing blade and the body of one soft combing blade are stacked to be combined into a combing blade set, a plurality of the hard combing blades and a plurality of the soft combing blades are combined into a plurality of combing blade sets arranged in the rack, the cutter arm of one combing blade set stretches into the limiting frame of the adjacent combing blade set, and the multiple combing blade sets are combined to form a circumferential cutting edge capable of wrapping the banana spike rod; each combing blade set is provided with one universal ball bearing, and a deformation structure is connected between each combing blade set and the rack. The cutter has the advantages of being light and small in overall structure, convenient to move, safe and labor-saving to operate, and suitable for mechanical banana combing.

The invention relates to a method of using native function microflora to in-situ purify ground water polluted by uranium. The method translates transferable hexavalent uranium into nontransferable uranous uranium in the ground water through nitrate reducing bacteria flora, ferric iron reducing bacteria flora and sulfate reducing bacteria flora which are formed under the anaerobic condition by microorganism, and therefore the purpose of purifying the ground water polluted by the uranium is achieved. The specific implementation method comprises: (1) adjusting a potential of hydrogen (Ph) value of the ground water polluted by the uranium; (2) activating the microorganism in sediments; (3) regulating and controlling variation of the microflora, accelerating evolution of the nitrate reducing bacteria flora, the ferric iron reducing bacteria flora and the sulfate reducing bacteria flora by means of adding a carbon source, regulating oxidation reduction potential of the water polluted by the uranium and the like; (4) continuously regulating and controlling the microbial flora until uranium concentration in the ground water polluted by the uranium is reduced below the national emission standard and the purpose of purifying the groundwater polluted by the uranium is achieved. The method of using the native function microflora to in-situ purify the ground water polluted by the uranium solves in-situ purifying problem of the ground water polluted by the uranium, and has the advantages of being high in purifying efficient, short in period, simple in equipment, short in process procedure, low in purifying cost, strong in operability, free of secondary pollution, good in purifying effect and the like.

The invention relates to an integrated high-reliability and high-precision long-term monitoring system which comprises the components of two alternate acquiring-and-coding units, two integrated controllers, a switch, two monitoring computers, a plurality of first sensors and a plurality of second sensors. According to the integrated high-reliability and high-precision long-term monitoring system, through improvement and innovation of a traditional data acquisition, coding, transmission and demodulation processing method, based on a serial communication interface and an industrial Ethernet, problems of complicated system equipment structure, low precision and insufficient long-term reliability are settled, and advantages of high reliability, high precision and long-term monitoring are realized. According to the integrated high-reliability and high-precision long-term monitoring system, in an integration aspect, integrated design is performed on key equipment of the system, number of equipment components is reduced and system complexity is reduced; in a transmission real-time performance aspect, data transmission is finished based on a serial bus and the Ethernet, thereby ensuring no performance reduction in actual use caused by transmission delay time; and in a long-term reliability aspect, through utilizing a redundancy design and other reliability design measures on the key equipment, continuous operation time of the product is prolonged.

The invention discloses a cleaning agent for treating polymer-containing oil sludge and a treatment method thereof. The cleaning agent is prepared by mixing 0.1-5% of a biological enzyme, 0.1-20% of a polymer digester, 1-5% of a low-density nano material, 1-10% of an alkali, 0.01-2% of an auxiliary agent and water according to the mass ratio. The treatment method comprises the following steps of: (1) putting a certain volume of oil sludge into a stirring and mixing device according to a mud-water ratio set by the water content of the oil sludge; after the biological enzyme, the polymer digester and the low-density nano material are prepared into the cleaning agent, pumping the cleaning agent to the stirring and mixing device; (2) pumping the cleaning agent into the stirring device, and heating the system; (3) starting a stirring and circulating system for stirring, mixing and flushing; (4) allowing flushing liquid to enter an oil-gas-water separation device for oil-gas-water separation, allowing separated oil to enter a collection and transportation system, performing evacuation after escaping gas reaches the standard, allowing the separated cleaning agent to enter a biological nano bubble generation device for recycling; and (5) allowing clean sediment to enter a sediment collection system, or directly discharging after pressure filtration and air drying of the clean sediment.

The present invention discloses an inserting-cutting type banana crown cutting device comprising an inserting-cutting type crown cutter, a synchronous belt transmission mechanism, a movable beam, a linkage self-locking clamping jaw, ball screw mechanisms, a motor and a bracket. The inserting-cutting type crown cutter is fixed on a lower holder of the bracket. The two sets of ball screw mechanisms are vertically arranged on the holder on both sides of the inserting-cutting type crown cutter, respectively, wherein one set of the ball screw mechanism is driven by the motor and synchronous movement of the two sets of ball screw mechanisms is realized by the synchronous belt transmission mechanism. The movable beam is arranged on the two sets of ball screw mechanisms, located above the inserting-cutting type crown cutter, and driven by the two sets of ball screw mechanisms to realize up-down linear movement. The linkage self-locking clamping jaw is arranged on the movable beam, used for clamping banana stalk and matched with the inserting-cutting type crown cutter, and cutting bananaes crown by crown from the stalk is realized. The banana crown cutting device disclosed by the present invention has the advantages of compact overall structure and light weight, and is convenience in transportation, safe and labor-saving in operation and the like, and is applicable to the mechanization of banana crown cutting.

The invention relates to a cyclone-type crushing device comprising a casing, a main shaft arranged in the casing, and a plurality of cutter blades arranged on the main shaft. As an original hammer crushing mode is changed into a mode that the rotating main shaft drives the cutter blades to rotate and impact on a sheeted thermosetting plastic semi-finished product for implementation of crushing; and further preferably, the cutter blades are driven to be contacted with the semi-finished product in sequence, so that the crushing effect is improved. In addition, an original mechanical parallel feeding mode is changed into an upward supply feeding mode, and the semi-finished product is directly filtered after being crushed in the casing, so that a subsequent processing operation is saved; and a substance which is not filtered away is still kept in the casing to be subjected to a cyclic process of crushing and filtering. Therefore, the cyclone-type crushing device is high in labor productivity, small in land occupation area and beneficial for large-scale production, and the semi-finished product is not required to be subjected to secondary processing.

The invention discloses a variable-diameter self-adaptive rotary cutting type banana bunch cutter. The variable-diameter self-adaptive rotary cutting type banana bunch cutter comprises double-edged internal cutting blades, double-edged external cutting blades, an internal annular blade carrier, an external annular blade carrier, connecting parts, two-section connecting link mechanisms and A-shapeddrag link mechanisms, wherein the internal annular blade carrier and the external annular blade carrier have the same center of circle; a plurality of double-edged internal cutting blades are mountedon the internal annular blade carrier and form an internal annular envelope structure; a plurality of double-edged external cutting blades are mounted on the external annular blade carrier and form an external annular envelope structure; the double-edged internal cutting blades and the double-edged external cutting blades are in staggered arrangement; every two double-edged external cutting blades are connected by the connecting parts; the double-edged internal cutting blades are connected with the corresponding connecting parts by pins; the two-section connecting link mechanisms are movablyhinged with the outer sides of the double-edged external cutting blades; two ends of the bottom parts of the A-shaped drag link mechanisms are hinged with the external annular blade carrier; and the top ends of the A-shaped drag link mechanisms are hinged with the hinge parts of two sections of connecting links of the two-section connecting link mechanisms. The variable-diameter self-adaptive rotary cutting type banana bunch cutter has the advantages of compact structure, light mass, convenient moving, safety in operation, labor saving and the like.

The invention discloses a method for loading a carbon fiber surface with carbon nanotubes. The method comprises treating carbon fiber filament bundles from a carbon fiber preparation phase washing workshop section through a carbon nanotube solution, carrying out sizing, carrying out treatment through a carbon nanotube dust raising chamber, carrying out drying and introducing the carbon nanotubes to the carbon fiber surfaces so that the carbon fibers with nanostructured surfaces are obtained. The method has simple processes, utilizes simple equipment and can be easily promoted and used in actual production. A resin-based composite material prepared from the carbon fibers obtained by the method has high interface performances.

The invention discloses a constant force mechanism based banana harvesting device capable of automatically adapting to the banana tree stem. The device comprises a frame, an outer cutter head, an inner cutter head, a first fixed shaft, a second fixed shaft, a first elevating stop block, a second elevating stop block, a torsional spring, a fixed rack, a hard blade installation rack, a movable guiderod, a horizontal compression spring, a public column, an inclined compression spring, a hard blade, and a soft blade. The annular inner cutter head and the outer cutter head can rotate around the axes of the inner cutter head and the outer cutter head and sequentially arranged on the through hole of the frame. Multiple annular arrays of the fixed rack are arranged on the inner cutter head. The fixed rack and the hard blade installation rack are connected by the movable guide rod. The horizontal compression spring sleeves the movable guide rod. The public column is connected to the hard bladeinstallation rack through the inclined compression spring. The hard blade is mounted on the hard blade installation rack. The soft blade is rivetingly arranged on the external side of the hard bladeso as to form an annular enveloping structure that envelopes a banana spike. The provided device has the advantages that the device can automatically adapt to the banana tree stems and in a certain constant force displacement range, the clamping force is constant.

The invention discloses die casting equipment, and belongs to the technical field of die casting equipment. The die casting equipment comprises a workbench, a fixed die is fixedly installed on the outer wall of the top of the workbench, the outer wall of the top of the workbench is fixedly connected with a rack, the inner wall of the top of the rack is fixedly connected with a hydraulic cylinder,a hydraulic rod at the bottom of the hydraulic cylinder is fixedly connected with a cleaning device, a movable die is arranged on the outer wall of the bottom of the cleaning device, a storage barrelis arranged on the outer wall of the left side of the rack, the outer wall of the top of the storage barrel communicates with a material injection head through a guide pipe, and the right end of an electric telescopic rod is connected with the material injection head through a clamp. When the movable die in the device is inserted into a cavity of the fixed die to machine a product, an installationplate can be in contact with the top wall of the fixed die, a movable rod is pushed upwards, a guide block moves towards the inner side, a movable sleeve drives a cutter to move downwards to be in contact with the top wall of the fixed die, overflowing raw materials are cut off, and the circumstance that the top of the product has redundant parts after the raw materials are cooled and formed is avoided.

The invention relates to a method of using native function microflora to in-situ purify ground water polluted by uranium. The method translates transferable hexavalent uranium into nontransferable uranous uranium in the ground water through nitrate reducing bacteria flora, ferric iron reducing bacteria flora and sulfate reducing bacteria flora which are formed under the anaerobic condition by microorganism, and therefore the purpose of purifying the ground water polluted by the uranium is achieved. The specific implementation method comprises: (1) adjusting a potential of hydrogen (Ph) value of the ground water polluted by the uranium; (2) activating the microorganism in sediments; (3) regulating and controlling variation of the microflora, accelerating evolution of the nitrate reducing bacteria flora, the ferric iron reducing bacteria flora and the sulfate reducing bacteria flora by means of adding a carbon source, regulating oxidation reduction potential of the water polluted by the uranium and the like; (4) continuously regulating and controlling the microbial flora until uranium concentration in the ground water polluted by the uranium is reduced below the national emission standard and the purpose of purifying the groundwater polluted by the uranium is achieved. The method of using the native function microflora to in-situ purify the ground water polluted by the uranium solves in-situ purifying problem of the ground water polluted by the uranium, and has the advantages of being high in purifying efficient, short in period, simple in equipment, short in process procedure, low in purifying cost, strong in operability, free of secondary pollution, good in purifying effect and the like.

The invention discloses equipment for removing sodium sulfate in saline water. The equipment comprises a membrane concentration system and a normal-temperature crystallization system connected with the membrane concentration system, wherein the membrane concentration system is a closed-cycle membrane concentration system or an opened membrane concentration system; the normal-temperature crystallization system comprises a buffer tank, a delivery pump, a heat exchanger and a normal temperature crystallizer which are sequentially connected. The invention also provides a method for removing the sodium sulfate in the saline water by using the equipment. According to the equipment and the method disclosed by the invention, the sodium sulfate in the saline water is concentrated to be supersaturated; concentration polarization of the surface of a membrane element is reduced to be minimized by adjusting the flowing speed and the pressure of the surface of the membrane element; meanwhile, crystal lattices of the sodium sulfate are enabled to be distorted, so that scaling or crystallization of the surface of the membrane element is prevented; a concentrated solution is crystallized at normal temperature, and anhydrous sodium sulfate is directly obtained without freezing and evaporating, so that energy consumption is greatly reduced, and the production cost is reduced; in addition, low-energy-consumption operation, energy conservation and environmental protection are realized; an obtained product does not need to be subjected to secondary treatment and can directly serve as a transportable and sellable product.

The invention provides a ground-attaching shoveling and planting machine. The machine comprises a vehicle body, a fixing frame, a shovel closing blocking piece, a supporting frame, a position adjusting rod set, a shovel impacting assembly and a collecting and scraping clamping assembly, the top end of the shovel closing blocking piece is fixedly connected with two telescopic rods, a plurality of impacting air cylinders are arranged, and impacting heads are arranged at the front ends of the impacting air cylinders. Multiple impacting rods are arranged and are inserted into a front rod of the supporting frame in a penetrating manner, and shovel blocks are arranged at the front ends of the impacting rods. The impacting heads at the front ends of the impacting air cylinders are pushed to impact the tail ends of the impacting rods, so that the shovel blocks on the front rod of the supporting frame rush out forwards, weed vegetation is pressed on the shovel closing blocking piece in combination with descending of a telescopic rod, the shovel closing blocking piece and the telescopic rod move mutually to cut off the weed vegetation , and the function of shoveling the weed vegetation is achieved. The shoveled weed vegetation can be collected together through the collecting and scraping clamping assembly and treated in a centralized manner, and time and labor are saved; and according to the ground-attaching shoveling and planting machine, the weed vegetation can be shoveled quickly, the thoroughness of shoveling can be ensured by utilizing the gaps between the impacting heads and the tail ends of the impacting rods, and the working efficiency is high.

The invention discloses a patterned film preparation method without a mask plate. According to the patterned film preparation method without the mask plate, a pretreated substrate to be coated is coated with a coating material by laser direct writing to obtain a patterned film; when the substrate to be coated is located above the coating material, the substrate to be coated is placed on the coating material, laser irradiation is carried out according to a set pattern, laser penetrates through the substrate to be coated and irradiates the sheet-shaped / block-shaped coating material, and the irradiated coating material forms clusters of the material and is sputtered on the substrate to be coated; and when the substrate to be coated is located below the coating material, the coating material is placed on the substrate to be coated, laser irradiation is carried out according to a set pattern, the laser irradiates the coating material and penetrates through the coating material, and the coating material serves as a coating source to form clusters of the material and is sputtered to the substrate to be coated. The method does not use the mask plate, is simple and practical, is low in cost, and can simply realize patterned coating of substrates with various sizes and materials.

The invention discloses a rubber product flash press-cutting tool, which at least comprises an upper substrate and a lower substrate. The upper substrate is provided with an upper clamping assembly and a press-cutting plate. The lower substrate is provided with a lower clamping assembly and an object carrying plate. The upper clamping assembly and the lower clamping assembly form two clamping stations. Two clamping stations are formed between the press-cutting plate and the object carrying plate. Press-cutting operation is realized through the four clamping stations. Through a press-cutting method, the rubber product flash press-cutting tool is used to directly cut off flash from a rubber product, and the operation process is simple and effective. After press-cutting, there is no residue and no damage. The press-cutting treatment cost is low. The rubber product produced by the use of the rubber product flash press-cutting tool has a beautiful appearance and requires no secondary processing, which is helpful for enterprises to reduce quality management cost.

The invention provides automatic treatment equipment and an automatic treatment process for a metal container obtained after casting molding. The automatic treatment equipment comprises a base, a conveying belt, a workbench, a bidirectional air cylinder, fixing mechanisms, arc-shaped clamping blocks, a cutting mechanism, columnar cutters and a tensioning mechanism, the container is conveyed to theworkbench through the conveying belt, and the container is fixed through the fixing mechanisms; and the bidirectional air cylinder controls the columnar cutters to be adjusted to be attached to a cuprim of the container, the cutting mechanism conducts cutting, and the tensioning mechanism drives the columnar cutters to rotate to grind the cut position in an up-and-down reciprocating and rotatingmanner. According to the automatic treatment equipment and the automatic treatment process, automatic cutting and grinding of the equipment are achieved, the container nozzle problem is solved at a time, potential safety hazards of workers are reduced, and meanwhile, the working efficiency of the equipment is effectively improved.

The invention discloses a waste pulp residue treatment device for yarn bobbin base paper production, in particular to the technical field of papermaking wastewater treatment, comprising a frame, the upper end of the frame is provided with a transmission mechanism, and the transmission mechanism comprises a main shaft arranged side by side and main shaft two, the main shaft one and the main shaft two are rotatably connected with the frame, the front end of the main shaft one is fixedly connected with a worm gear, the front end of the main shaft two is fixedly connected with a gear, and the side of the worm gear away from the gear is provided with a worm gear. The worm gear meshes with the worm, the worm is connected with the frame in rotation, and a movable rod is arranged on the side of the gear away from the worm gear. Through the arrangement of the transmission mechanism, the filtering mechanism and the water squeezing mechanism, the invention can push out the filtered waste pulp residue by using the up and down movement of the movable rod to realize preliminary filtration, and then pass the first water squeezing wheel and the second water squeezing wheel to the waste pulp residue. Extrusion is performed to further remove the waste water in the waste pulp residue, so that the content of waste water in the treated waste pulp residue is low, and secondary treatment is not required.

The invention discloses mold die-casting equipment in the technical field of mold die-casting equipment. The cylinder is fixedly connected, and the hydraulic rod at the bottom of the hydraulic cylinder is fixedly connected with the cleaning device. The outer wall of the bottom of the cleaning device is provided with a movable mold, and the outer wall on the left side of the frame is provided with a storage tank. The injection head is connected, and the right end of the electric telescopic rod is connected to the injection head through a clamp. When the movable mold in the device is inserted into the cavity of the fixed mold to process the product, the mounting plate will contact the top wall of the fixed mold and push the moving rod upward. , to move the guide block to the inside, so that the moving sleeve moves down with the cutter to contact the top wall of the fixed mold, cut off the overflowing raw material, and avoid the redundant part on the top of the product after the raw material is cooled and formed.

The invention discloses a bamboo structural plant ecological wall. The wall comprises a metal skeleton, wherein the metal skeleton is parallel to and keeps a certain distance from the wall surface, and is connected to the wall surface through the support feet at the periphery of the metal skeleton; the skeleton is provided with multiple transverse metal rods from top to bottom; each metal rod is sleeved with a bamboo tube; and the top opening of the bamboo tube is used for accommodating plants. The inventive plant ecological wall is integrated, the nutrition is completely self-sufficient, and able to keep the wall plant in good growth conditions for a long time, the plants on the wall are convenient to replace and can constitute different designs, the ecological wall is installed once and does not need to be disassembled unless the skeleton is decayed, the service life is the same as the building life, the ecological wall does not need the secondary processing, is economic and beautiful, and has high market values.

The invention provides an automatic processing equipment and automatic processing technology for metal containers after casting, including a base, a conveyor belt, a worktable, a two-way cylinder, a fixing mechanism, an arc clamping block, a cutting mechanism, a cylindrical cutter and a tensioning mechanism. The conveyor belt transports the container to the workbench, the fixing mechanism fixes the container, the two-way cylinder controls the cylindrical knife to adjust the position to fit the container cup mouth, the cutting mechanism cuts, and the tensioning mechanism drives the cylindrical knife to rotate to the cutting place through repeated up and down and rotation Grinding by means of the present invention realizes the automatic cutting and grinding of the equipment, handles the problem of the nozzle of the container at one time, reduces the hidden danger of manual safety, and effectively improves the working efficiency of the equipment at the same time.

The present invention discloses an inserting-cutting type banana crown cutting device comprising an inserting-cutting type crown cutter, a synchronous belt transmission mechanism, a movable beam, a linkage self-locking clamping jaw, ball screw mechanisms, a motor and a bracket. The inserting-cutting type crown cutter is fixed on a lower holder of the bracket. The two sets of ball screw mechanisms are vertically arranged on the holder on both sides of the inserting-cutting type crown cutter, respectively, wherein one set of the ball screw mechanism is driven by the motor and synchronous movement of the two sets of ball screw mechanisms is realized by the synchronous belt transmission mechanism. The movable beam is arranged on the two sets of ball screw mechanisms, located above the inserting-cutting type crown cutter, and driven by the two sets of ball screw mechanisms to realize up-down linear movement. The linkage self-locking clamping jaw is arranged on the movable beam, used for clamping banana stalk and matched with the inserting-cutting type crown cutter, and cutting bananaes crown by crown from the stalk is realized. The banana crown cutting device disclosed by the present invention has the advantages of compact overall structure and light weight, and is convenience in transportation, safe and labor-saving in operation and the like, and is applicable to the mechanization of banana crown cutting.

The invention relates to the technical field of high-frequency welding machines, and discloses a high-frequency welding machine capable of feeding materials at equal intervals and used for plastic films. The high-frequency welding machine comprises a bottom plate, wherein two guide rollers are fixedly connected to the left side of the bottom plate; a winding roller and a driven roller are rotationally connected to the top of the bottom plate; two first gears are rotationally connected to the top of the bottom plate; rotating wheels are fixedly connected to the opposite sides of the two first gears; a driving roller is fixedly connected between the two rotating wheels; movable rods are arranged below the two rotating wheels; blades are fixedly connected to the bottoms of the two movable rods; and a top plate is arranged above the bottom plate. The driving roller drives the rotating wheels to rotate, when the rotating wheels rotate, grooves in the outer sides are matched with reset springs to drive the movable rods to move up and down, then the blades are driven to correct the welding edge of a moving film, chippings generated by correction fall into the position below the bottom plate through a discharging hole, and therefore the effect of automatically correcting the welding edge is achieved.

The invention discloses a constant force mechanism based banana harvesting device capable of automatically adapting to the banana tree stem. The device comprises a frame, an outer cutter head, an inner cutter head, a first fixed shaft, a second fixed shaft, a first elevating stop block, a second elevating stop block, a torsional spring, a fixed rack, a hard blade installation rack, a movable guiderod, a horizontal compression spring, a public column, an inclined compression spring, a hard blade, and a soft blade. The annular inner cutter head and the outer cutter head can rotate around the axes of the inner cutter head and the outer cutter head and sequentially arranged on the through hole of the frame. Multiple annular arrays of the fixed rack are arranged on the inner cutter head. The fixed rack and the hard blade installation rack are connected by the movable guide rod. The horizontal compression spring sleeves the movable guide rod. The public column is connected to the hard bladeinstallation rack through the inclined compression spring. The hard blade is mounted on the hard blade installation rack. The soft blade is rivetingly arranged on the external side of the hard bladeso as to form an annular enveloping structure that envelopes a banana spike. The provided device has the advantages that the device can automatically adapt to the banana tree stems and in a certain constant force displacement range, the clamping force is constant.

The invention discloses an inserting and cutting-type banana comb drop tool, which comprises a cutter head, an encircling structure tool group, a plurality of tool synchronization units and tool spacing adjusting units, wherein a through hole is formed in the cutter head; the plurality of tool synchronization units are uniformly distributed on the cutter head around the through hole; every two tool synchronization units are connected through double-cross sections; each tool synchronization unit is provided with one tool spacing adjusting unit; the encircling structure tool group comprises a plurality of rigid blades and a plurality of soft blades; each tool synchronization unit comprises an optical axis, a plummer block and one double-cross section and is used for adjusting motion parameters of various rigid blades to ensure that various rigid blades of the encircling structure tool group are consistent in parameter in the working process and to keep an encircling structure round or oval; and each tool spacing adjusting unit comprises a sliding rail, a sliding table and a spring and is used for adjusting cut-in angles of the rigid blades. The inserting and cutting-type banana comb drop tool has the advantages of being compact in overall structure, light in weight, convenient to move and safe and labor-saving in operation, and is suitable for mechanized banana comb drop.

The invention discloses a variable-diameter self-adaptive rotary cutting type banana bunch cutter. The variable-diameter self-adaptive rotary cutting type banana bunch cutter comprises double-edged internal cutting blades, double-edged external cutting blades, an internal annular blade carrier, an external annular blade carrier, connecting parts, two-section connecting link mechanisms and A-shapeddrag link mechanisms, wherein the internal annular blade carrier and the external annular blade carrier have the same center of circle; a plurality of double-edged internal cutting blades are mountedon the internal annular blade carrier and form an internal annular envelope structure; a plurality of double-edged external cutting blades are mounted on the external annular blade carrier and form an external annular envelope structure; the double-edged internal cutting blades and the double-edged external cutting blades are in staggered arrangement; every two double-edged external cutting blades are connected by the connecting parts; the double-edged internal cutting blades are connected with the corresponding connecting parts by pins; the two-section connecting link mechanisms are movablyhinged with the outer sides of the double-edged external cutting blades; two ends of the bottom parts of the A-shaped drag link mechanisms are hinged with the external annular blade carrier; and the top ends of the A-shaped drag link mechanisms are hinged with the hinge parts of two sections of connecting links of the two-section connecting link mechanisms. The variable-diameter self-adaptive rotary cutting type banana bunch cutter has the advantages of compact structure, light mass, convenient moving, safety in operation, labor saving and the like.

The invention discloses a method for loading a carbon fiber surface with carbon nanotubes. The method comprises treating carbon fiber filament bundles from a carbon fiber preparation phase washing workshop section through a carbon nanotube solution, carrying out sizing, carrying out treatment through a carbon nanotube dust raising chamber, carrying out drying and introducing the carbon nanotubes to the carbon fiber surfaces so that the carbon fibers with nanostructured surfaces are obtained. The method has simple processes, utilizes simple equipment and can be easily promoted and used in actual production. A resin-based composite material prepared from the carbon fibers obtained by the method has high interface performances.

The invention discloses a pipeline hot galvanizing flange sealing surface isolating method. The method comprises the following steps: (1) flanges and pipelines are assembled; (2) polyurethane paint isrepeatedly coated on flange sealing surfaces of the pipelines for standing and drying; (3) the pipes with the dried flange sealing surfaces are dipped in 20% of concentrated hydrochloric acid solution for acid washing; (4) the pipelines are dipped in NH4Cl plating assistant solvent after acid washing; and (5) the pipelines are dipped in a liquid-state zinc pool with a temperature of not lower than 450 DEG C. The method can prevent high-temperature damage of welding line zinc coating layers and damage of the flange sealing surfaces.