105results about How to "Improve secondary utilization" patented technology

The invention discloses an engineering investigation information digital collection, management and integrated application method. The method is realized jointly through a desktop management subsystem and a mobile device collection subsystem and completed at a PC desktop terminal and a PDA mobile terminal, and the whole process is carried out based on the same data architecture and the same data model. The method and technology for engineering investigation information resource collection and production, organization and management to diversified utilization are suitable for collection, management and utilization of investigation information resources in all industries and can be directly applied and popularized in engineering investigation of all industries.

The invention discloses a special organic fertilizer for watermelons and a preparation method of the special organic fertilizer, and belongs to the technical field of fertilizers. The special organic fertilizer is prepared from the following raw materials in parts by weight: 30-40 parts of chicken manure, 20-35 parts of decomposed plant straw, 10-15 parts of wheat bran, 10-15 parts of peanut oil residue, 5-10 parts of oil sludge, 5-10 parts of humic acid, 2-5 parts of urea, 10-20 parts of trace elements, 5-10 parts of a complex microbial agent and 5-10 parts a functional microbial agent. The special organic fertilizer can provide abundant nutritive elements for the watermelons according to the growth characteristics of watermelons in various periods, and the special organic fertilizer can increase the yield, improve the quality and character and promote the good growth of watermelons. By using the special organic fertilizer, the use amount of unreasonable fertilizers can be reduced.

The invention relates to a method for purifying the surface of a tailings reservoir and ecologically restoring linear stonecrop herb. The method comprises the following steps of: a, purifying the superficial layer of tailings; b, covering clay; and c, afforesting vegetation. The method has the advantages of pollution abatement and ecological restoration; compared with a filling method and a solidifying method, the method saves abatement cost when used in the tailings reservoir; compared with a reclaimation method, the method saves a great number of soil resources on the basis of saving cost; compared with the common tailings reservoir, the method solves the problems of environmental pollution caused by dust because tailings are exposed in the common tailings reservoir; and the method has the advantages of convenient technology implementation, low cost, contribution to ecological balance and sustainable development of the society, and capability of achieving good economic benefit and environmental benefit.

The invention relates to a process for preparing cyclical cultivation material for edible mushroom by using waste mushroom bran, comprising: crushing waste bran and double crossing with other cultivation material and then drying, and the invention is characterized in that it comprises flash evaporation with steam, and bacterial enzymolysis before double crossing, for which harmful metabolite and toxin will be destroyed and removed, and the fiber of not disintegrated will bulk, fracture and disintegrate, which is good for disintegration and usage of nutrition in mushroom for edible mushroom in cultivation course. The invention can solve problem of environmental pollution in edible mushroom producing area and reduce cultivation cost and stabilize productivity, which will promote standardized production of edible mushroom.

The invention discloses a dust recycling system and a dust recycling treatment method, and aims at providing the dust recycling system and the dust recycling treatment method with the advantages that the dust absorption effect is good, the automation degree is high, and in addition, the secondary utilization rate of recovered powder materials is high. The dust recycling system has the The main technical scheme is that the dust recycling system comprises electric control equipment, a dust absorption device, a dust storage device and a dust output device, wherein the dust absorption device, the dust storage device and the dust output device are sequentially connected; the dust absorption device comprises a dust absorption passage, a dust suction fan and a cloth bag dust collector; the dust storage device comprises a sedimentation pool; air dehumidifying equipment and temperature regulating equipment are arranged in the sedimentation pool; the dust output device comprises pneumatic conveying equipment, a vibration sieve and a spiral conveying mechanism 43 in sequential connection; and the electric control equipment controls and comprises a dust absorption control module, a dust storage control module and a dust output control module. The system and the method provided by the invention are applicable to the dust recycling system and the treatment method.

The invention discloses a method for producing dry-mixed mortar from metal tailing slag. The method comprises the following steps: S1, drying the metal tailing slag and removing iron; S2, grading themetal tailing slag obtained in S1 according to the particle size and storing the metal tailing slag as metal tailing superfine sand, metal tailing fine sand, metal tailing medium sand and metal tailing coarse sand for standby application; S3, stirring an activator and the metal tailing superfine sand in a certain proportion evenly, and then performing grinding to obtain tailing powder; S4, matching the metal tailing fine sand, the metal tailing medium sand, the metal tailing coarse sand, cement, the tailing powder and a water retaining agent in a certain proportion, and performing stirring uniformly to obtain the dry-mixed mortar. The metal tailings are used gradiently according to different particle grades, zero treatment of the tailings is achieved, waste is turned into wealth, and the produced dry-mixed mortar has good comprehensive performance and remarkable economic, environmental and social benefits.

The invention provides a die cutting technology achieving asynchronous feeding and seamless splicing purposes. The die cutting technology aims to overcome the technical defects that in the prior art, materials of cut products are wasted, seams are generated in splicing, and therefore the product yield is low. The die cutting technology can improve the material utilization rate of cut products and achieve seamless connection. The die cutting technology comprises the steps that firstly, four frame bars of a square product are cut out; secondly, the frame bars are attached to a release film which can be delivered and stripped; thirdly, the release film which the four frame bars are attached to is overlapped to form a product frame; fourthly, the overlaid parts of the four frame bars are cut through single cutters; sixthly, roll pressing is conducted to achieve coplanar connection of the product frame bars; finally, spare parts of the release film are stripped. Through the combination of the seamless asynchronous die cutting technologies, the four frame bars are connected seamlessly, so that materials are saved, dust is prevented from entering the product, and the functions of the product can not be affected.

The invention discloses a special organic cultivation substrate for epipremnum aureum and a preparation method therefor and belongs to the technical field of soilless culture. The special organic cultivation substrate for the epipremnum aureum is prepared from the following raw materials in parts by weight: 100-150 parts of organic well-composted matrix, 40-60 parts of wood sawdust, 40-60 parts of straws, 30-50 parts of bean cakes and 1-3 parts of N, P and K ternary compounded fertilizer. According to the organic cultivation substrate, no mineral raw material difficult to degrade is added, so that no influence on environment can be caused. The organic cultivation substrate is rich in source of raw materials and low in cost, and the difficult problems that oil sludge remaining during chondroitin sulfate extraction is hard to reutilize and a large number of pineapple peels cause pollution to the environment are solved; and meanwhile, the prepared substrate is good in moisture and fertility preserving capability and air permeability and complete in nutritional component and fully meets the needs of the epipremnum aureum on cultivation and growth, and the occurrence of plant diseases and insect pests can be greatly reduced or prevented.

The invention relates to a composition for removing residual phytotoxicity of herbicide, and a preparation method thereof; the composition comprises the components in parts by weight: 30-60 parts of soybean extract liquid, 5-20 parts of liquorice extract liquid and 8-20 parts of barley malt extract liquid. The composition for removing the residual phytotoxicity of the herbicide can rapidly remove the drifting phytotoxicity of the herbicide and the phytotoxicity caused by excessive pesticide applications, takes effect in two days later after being sprayed, enables grasses to get right after a week, and is simple in using method and low in cost.

The invention relates to the technical field of numerical control machine tool machining, in particular to a cutting fluid circulating device for a numerical control machine tool and a using method ofthe cutting fluid circulating device. The cutting fluid circulating device comprises a base and a recycling barrel, wherein a liquid level sensor is fixedly arranged on the inner wall of the recycling barrel; and the cutting fluid circulating device further comprises a controller, a filtering mechanism, a proportioning mechanism and a stirring mechanism, wherein the filtering mechanism comprisesa filtering box, a shaking assembly and a pushing assembly, the proportioning mechanism comprises a storage box and a proportioning assembly, the stirring mechanism comprises a driving motor, a rotating shaft and a stirring assembly, and the driving motor, the liquid level sensor, the shaking assembly, the pushing assembly and the proportioning assembly are all electrically connected with the controller. According to the cutting fluid circulating device for the numerical control machine tool and the using method of the cutting fluid circulating device, cutting fluid contaminated on cutting chips can be fully separated out, and more cutting fluid cannot be left on the surfaces of the cutting chips, so that the utilization rate of the cutting fluid is increased, and cyclic utilization of thecutting fluid is facilitated; and meanwhile, the cutting chips in a collecting box are dried in time, so that the cutting chips can be rapidly recycled.

The invention discloses a height-adjustable hay mower. The hay mower includes a hay mower body, grass crushing devices and a height adjustment device which is used for adjusting the heights of the grass crushing devices; the height adjustment device is fixedly installed on the hat mower body, and the grass crushing devices are installed on the height adjustment device, located on the two sides of the hay mower body and used for collecting cut grass, crushing the cut grass and then sending the crushed grass to a garden plot. In the height adjustment process, a lifting motor is connected with a first electric push rod and drives the first electric push rod to move up and down, and a power transmission plate fixed on the first electric push rod moves up and down along with the first electric push rod, so that the heights, relative to the bottom of a hay mower frame, of the grass crushing devices are adjusted; when the grass crushing devices work, a draught fan produces negative pressure at grass suction holes, the cut grass enters a grass collection tank through the grass suction holes and then enters a grass crushing bin under the action of a smooth inclined plane, grass crushing cutters located on the bottom of the grass crushing bin crush the cut grass, and the crushed grass is discharged from grass outlet channels under the action of the fan.

The invention relates to an efficient aluminum alloy profile oxidation device and an aluminum alloy profile polishing process. The oxidation device comprises an electrolysis tank body, cathode conducting devices, anode conducting devices and an electrolyte preparation tank, wherein notches are evenly formed on the tank edge end surface of the electrolysis tank body; the cathode conducting devices are clamped with the electrolysis tank body through the notches; the baseplate section of the electrolysis tank body is concave; a drain pipe leaded to the electrolyte preparation tank is vertically arranged in the center position of the concave; the anode conducting devices are pairwise arranged, are respectively fixed on the two opposite inner walls of the electrolysis tank body, and are two-section type bent structures connected through bolts; the bottom of the electrolyte preparation tank is an inclined structure; and a waste liquid outlet and a pump body leaded to the electrolysis tank body are arranged in the lowest position of the bottom of the electrolyte preparation tank. The anode oxidation device and the polishing process suitable for piping aluminum alloy profiles have excellent conductivity, can enhance the surface quality consistency of the piping aluminum alloy profiles, reduce the waste of raw materials, improve the electrolyte utilization rate, and are suitable for large-scale promotion and application.

A detachable roller of a high pressure roller mill relates to the technical field of structures of the detachable roller of the high pressure roller mill. The detachable roller comprises a main shaft, a roller rack and a wear resistant roller skin, the wear resistant roller skin is obtained by combining a plurality of small roller skins, the wear resistant roller skin is uniformly distributed, the small roller skins have a same size, and the small roller skins are detachably connected with the roller rack through bolts respectively. The wear resistant roller skin is divided into the plurality of independent and detachable small roller skins, so the wear resistant roller skin can be conveniently maintained; and the middle roller rack and the main shaft can be reused multiple times, so the service life of the roller is effectively prolonged, and the production cost is reduced.

The invention relates to dust recovering device and relates to the technical field of dust treatment. The technical problem that in the prior art, a dust inlet is large, and thus suction generated in a unit space is reduced is solved. The dust recovering device comprises a dust suction unit, a dust storing unit and a dust output unit; a dust suction inlet is formed in the dust suction unit; by arranging a flow straightening grid on the dust suction inlet into a structure with the upper half portion being an oblique grid body and the lower half portion being a horizontal grid body, namely by partitioning the dust suction inlet into a plurality of small dust suction units through the grid, the suction of all the dust suction units is improved; and meanwhile guiding of the dust inflowing direction is further facilitated through the oblique grid body and the horizontal grid body, suction efficiency is improved to the utmost extent, pollution generated by dust is reduced, the work comfort degree of a worker is greatly increased, work efficiency is improved, and using efficiency of the dust recovering device is improved.

The invention discloses an automatic shell cutting machine. The shell cutting machine comprises a base, an operating table top arranged at the upper end of the base, a shell cutting mechanism fixed tothe operating table top as well as a conveying mechanism for sending defective products into the shell cutting mechanism; a hollow first cavity is formed in the base; at least one waste recovering hole communicating with the first cavity is formed in the operating table top; the shell cutting mechanism comprises a blade capable of moving horizontally along the surface of the operating table top and realizing horizontal cutting; the conveying mechanism comprises a second driving device for driving a fixing seat to move linearly on the surface of the operating table top; the fixing seat is fixed to the second driving device; and a fixing groove for fixing the defective products is formed in the fixing seat. The invention further discloses a shell cutting method. Compared with the prior art,the shell cutting machine and the shell cutting method have the advantages that shell cutting is not required to be performed on the defective products of ultrasonic welding by the aid of chemical agents, so that damage caused by the chemical agents to PCBAs and human bodies is avoided, the secondary use rate of the PCBAs is increased, and the production cost of an enterprise is saved.

The invention discloses a height-adjustable hay mower. The hay mower includes a hay mower body, grass crushing devices and a height adjustment device which is used for adjusting the heights of the grass crushing devices; the height adjustment device is fixedly installed on the hat mower body, and the grass crushing devices are installed on the height adjustment device, located on the two sides of the hay mower body and used for collecting cut grass, crushing the cut grass and then sending the crushed grass to a garden plot. In the height adjustment process, a lifting motor is connected with a first electric push rod and drives the first electric push rod to move up and down, and a power transmission plate fixed on the first electric push rod moves up and down along with the first electric push rod, so that the heights, relative to the bottom of a hay mower frame, of the grass crushing devices are adjusted; when the grass crushing devices work, a draught fan produces negative pressure at grass suction holes, the cut grass enters a grass collection tank through the grass suction holes and then enters a grass crushing bin under the action of a smooth inclined plane, grass crushing cutters located on the bottom of the grass crushing bin crush the cut grass, and the crushed grass is discharged from grass outlet channels under the action of the fan.

The invention relates to a multi-layer support bent frame system parking lot. The parking lot comprises bent frame columns, internal slope lanes and parking units, wherein parking floors are formed by superposing the parking units floor by floor from top to bottom and arranged side by side; the parking units among adjacent parking floors are arranged in a staggered mode in the height direction; each parking unit comprises a composite beam; the upper surface of a floor plate of the composite beam is provided with parking spaces and running lanes; the bent frame columns are transversely arranged in rows at intervals; two rows of bent frame columns are hinged with steel beams at two ends of the composite beam; the internal slope lanes are arranged among adjacent parking floors; the low side of each internal slope lane is positioned on the parking unit of the parking floor on one side, and the high side of each internal slope lane is positioned on the parking unit which is adjacent to andhigher than the parking unit of the parking floor on one side; and the parking unit on the bottommost layer is provided with an entrance and exit. The parking lot is flexibly configured, low in construction cost, long in service life, convenient to expand and high in secondary utilization rate.

The invention discloses a high-filling modified polyacrylate optical cement composition. The modified polyacrylate optical cement composition comprises (a) a curable (methyl) acrylate copolymer of which the weight-average molecular weight is in a range of 200000 Da to 400000 Da; (b) 0.05 wt% to 0.8 wt% of a (meth) acryloyloxy monomer which can be grafted to the curable (methyl) acrylate copolymer; (c) 0.05 wt% to 1.5 wt% of a photoinitiator; (d) 0.02 wt% to 0.8 wt% of an antioxidant; and (e) 0.5 wt%-5 wt% of a multi-functional monomer which is an acrylate monomer containing two or more functional groups. The curable (methyl) acrylate copolymer is prepared from 60 wt%-85 wt% of a soft monomer, 5 wt%-20 wt% of a hard monomer and 5 wt%-20 wt% of a functional monomer through a polymerization reaction. The invention further discloses a substrate-free OCA pressure-sensitive adhesive tape prepared from the optical adhesive composition and a preparation method of the substrate-free OCA pressure-sensitive adhesive tape. The high-filling modified polyacrylate optical cement composition disclosed by the invention has good reworkability.

The invention relates to a secondary decoloring method of animal and vegetable oil. The secondary decoloring method comprises the following steps of a, mixing oil to be decolored and primarily used waste clay, and enabling a mixture to enter a decoloring tower for decoloring treatment; b, treating a material discharged in the step 1 with a primary filter to obtain primarily decolored oil and secondarily used waste clay, and treating the collected secondarily used waste clay according to a conventional waste treatment technology; c, mixing the primarily decolored oil obtained in the step b andnew clay, and enabling a mixture to enter the decoloring tower for decoloring treatment; d, treating a material discharged in the step c with a secondary filter to obtain secondarily decolored oil andprimarily used waste clay, enabling the primarily used waste clay to reflux to the step a for use; and e, treating the secondarily decolored oil obtained in the step d with a bag filter to obtain decolored oil. The secondary decoloring method of the animal and vegetable oil enables the secondary utilization ratio of waste clay to be increased, the waste clay and oil to be more fully mixed and theuse ratio of fresh clay to be lowered and belongs to the technical field of animal and vegetable oil decoloring.

The invention discloses a garbage classification box constructed based on a convolutional neural network. The garbage classification box comprises a supporting frame, a front sealing shell, a cabinetdoor, garbage cans, a throwing opening, a parking pipeline and other parts. The parking pipeline of a cylindrical structure is arranged on the lower surface of an upper flat plate structure of the supporting frame, a distributing support is fixed to the supporting frame through bolts and located below the parking pipeline, a second steering engine is fixed to the supporting frame, an output shaftof the second steering engine is connected with a distributing shaft, and the other end of the distributing shaft is embedded into the distributing support through a bearing. The four garbage cans areplaced above a lower flat plate structure of the supporting frame, and two rotating seats are arranged beside the parking pipeline; a parking baffle is connected between the two rotating seats through a parking shaft, the upper end of the parking shaft is connected to the output end of a first steering engine through a coupler, and the first steering engine is fixed to the supporting frame. The garbage classification box has the beneficial effects that manpower can be saved, the garbage sorting efficiency is improved, and the economic value is considerable.

The invention discloses a preparation apparatus for combustible gas. The preparation apparatus comprises a waste liquid case, a crushing cabin, a pool body, a fermentation cabin and a gas storage tank, wherein a base plate is mounted below the pool body; a single-chip microcomputer is arranged at the central position of the interior lower part of the base plate; the fermentation cabin is arrangedin and located at the upper part of the pool body; a waste residue cabin is arranged in and located at the lower part of the pool body; one side of the pool body is provided with the gas storage tank;and the waste liquid case is arranged below one side, away from the gas storage tank, of the pool body. The preparation apparatus provided by the invention is provided with the waste liquid case, thewaste residue cabin, a filter tube, a pneumatic cylinder and a pressure plate; the pneumatic cylinder presses a waste material via the pressure plate and can extrude waste liquid out from the waste material; the filter tube can filter out water in the waste material; and waste liquid and waste residues are respectively stored in the waste liquid case and the waste residue cabin in a multichanneltreatment manner. Thus, classified collection and cleaning of the waste material are facilitated; and since the waste liquid can be used for fertilization of crops, the secondary utilization rate of the waste material is increased.

The invention discloses a picture pixel dynamic linking system for assisting electronic component positioning and belongs to the electronic equipment inspection and maintenance technical field. A comprehensive method according to which component dynamic positioning identification, maintenance guidance on electronic equipment to be maintained and search for an emergency substitution component are carried out on a distributed database based on picture pixel coordinate dynamic linking is adopted. With the picture pixel dynamic linking system adopted, maintenance time can be shortened by several times to hundreds of times according to the complexity of the electronic equipment to be maintained and the familiarity degree of maintenance technicians for the electronic equipment to be maintained, and therefore, the maintenance efficiency of the electronic equipment can be greatly improved, and technical requirements for the maintenance technician of the electronic equipment can be lowered, and related social resources such as production, maintenance, use and marketing resources of the electronic equipment can be greatly saved.

The invention relates to a material conveying method of a removal tower, and belongs to the technical field of removal of air pollutants. The material conveying method solves the problems of serious abrasion of a removal agent in the removal tower, serious chalking of the removal agent, and failure to reach secondary recycling of removal agent and environment protection in the prior art. The material conveying method of the removal tower comprises the following steps of S1, charging of material: enabling a removal unit grid to enter the removal tower via a material charge channel; S2, fallingof material: enabling the removal unit grid to fall onto the bottom part of the removal tower via the top part of the removal tower along a material falling channel; S3, discharging of material: discharging the removal unit grid out of the removal tower via a material discharge channel. The material conveying method has the advantages that the removal agent is loaded into the fixed type removal unit grid, and the movement type of the removal unit grid is controlled to replace the removal agent; the abrasion of the removal agent in the use process is reduced, the secondary recycling rate of theremoval agent is improved, and the use cost of the removal agent is reduced.

The invention provides a die cutting technology achieving asynchronous feeding and seamless splicing purposes. The die cutting technology aims to overcome the technical defects that in the prior art, materials of cut products are wasted, seams are generated in splicing, and therefore the product yield is low. The die cutting technology can improve the material utilization rate of cut products and achieve seamless connection. The die cutting technology comprises the steps that firstly, four frame bars of a square product are cut out; secondly, the frame bars are attached to a release film which can be delivered and stripped; thirdly, the release film which the four frame bars are attached to is overlapped to form a product frame; fourthly, the overlaid parts of the four frame bars are cut through single cutters; sixthly, roll pressing is conducted to achieve coplanar connection of the product frame bars; finally, spare parts of the release film are stripped. Through the combination of the seamless asynchronous die cutting technologies, the four frame bars are connected seamlessly, so that materials are saved, dust is prevented from entering the product, and the functions of the product can not be affected.

The invention discloses a building waste treatment device for recycling building engineering waste. The building waste treatment device comprises a box body, a coarse crushing assembly and a refining assembly; a coarse mesh screen and a fine mesh screen are arranged in the box body, a discharging bin door is arranged on the side wall, the coarse crushing assembly comprises a crushing block and a crushing motor, the crushing block penetrates through the box body and is clamped with the box body, and the crushing motor provides power for the crushing block; the refining assembly comprises a transmission motor, a pressing roller, a first guide ring and a second guide ring, the first guide ring and the second guide ring are both arranged on the fine mesh screen, the two ends of the pressing roller are connected with the first guide ring and the second guide ring in a clamped mode respectively, and the transmission motor provides power for the pressing roller; the building waste treatment device is reasonable in structural design, capable of achieving refined crushing of building waste and improving the utilization rate of the building waste and suitable for large-scale popularization.

The invention belongs to the technical field of waste recycling treatment, and particularly relates to an arsenic-containing gypsum recycling treatment method and application of the treated and recycled low-arsenic gypsum. The method comprises the following steps: mixing arsenic-containing gypsum with an acidic solution, and then sequentially carrying out recrystallization and solid-liquid separation treatment to obtain low-arsenic gypsum and an arsenic-containing solution. Arsenic-containing gypsum is used as a raw material, and the industrial waste is recycled. The arsenic-containing gypsumis mixed with an acidic solution, so that an acidic recrystallization environment is guaranteed, which is beneficial to promoting dissolution and recrystallization of the arsenic-containing gypsum; HAsO4<2-> released from the arsenic-containing gypsum is converted into arsenide containing H2AsO4<-> or H3AsO4, so that arsenic is prevented from being embedded into new gypsum crystal lattices formedby dissolution and recrystallization again, and the low-arsenic gypsum with extremely low arsenic content is obtained. Experimental data show that the arsenic leaching concentration of the low-arsenicgypsum obtained through the method is smaller than 0.2 mg / L, and the arsenic content is lower than 35 mg / kg.

The invention discloses a cooling system for a power supply tank electrolyte prepared from molten anode aluminum foil of aluminum electrolytic capacitors and a working method thereof. The cooling system comprises a tap water pool, a refrigeration water tank and a heat exchanger. The tap water pool is communicated with the heat exchanger through a main tap water outlet pipe, a tap water supply pipe, a tap water recovery pipe and a main tape water recovery pipe. A water pump and a filter are arranged on a pipeline. Tap water and the electrolyte exchange heat in the heat exchanger to achieve heat-exchange cooling, and after heat exchange, the tap water enters a water production workshop to be used as production water or be stored in the tap water pool for later use. Chilled water in the refrigeration water tank is used as a standby heat-exchange medium and can be switched to be used when cooling of the tap water does not meet requirements. According to the cooling system for the power supply tank electrolyte prepared from molten anode aluminum foil of aluminum electrolytic capacitors and the working method thereof, the tap water is used for cooling the electrolyte first and then is delivered to the water production workshop for production, so that cold energy of the tap water is fully used, and the chilled water is reserved for cooling; and the cooling system and the working method thereof have the advantages of being low in cost, capable of saving energy, environmentally friendly and stable in cooling and can be widely used for cooling of the power supply tank electrolyte prepared from the molten anode aluminum foil of the aluminum electrolytic capacitors.

The invention provides a steel bar trolley suitable for construction of a turning section. The steel bar trolley comprise a steel bar trolley truss, a plurality of layers of side face platforms located on the two sides of the steel bar trolley truss correspondingly, trolley crawling ladders, traveling systems and a rail. A plurality of sets of connecting holes are formed in two corresponding bottom longitudinal beams of the steel bar trolley truss. Each traveling system comprises a traveling longitudinal beam, inner traveling steel wheels and outer traveling steel wheels, wherein the inner traveling steel wheels and the outer traveling steel wheels are installed on the traveling longitudinal beam and driven by a motor through a sprocket-chain transmission mechanism to travel on the rail, and the diameter of the inner traveling steel wheels is smaller than that of the outer traveling steel wheels. Traveling wheel hinging seats are hinged to the traveling longitudinal beams through rotary shafts. Connecting seats are installed at the tops of the traveling wheel hinging seats. A plurality of connecting holes are formed in the connecting seats. The connecting seats are connected with the bottom longitudinal beams in the steel bar trolley truss by means of connectors through the connecting holes in the connecting seats and connecting holes in the bottom longitudinal beams. According to the steel bar trolley, the universality is high, the traveling speed of the trolley is high, the requirement that the trolley operates to a specific position smoothly through turning can be met, and safety is achieved.