30results about How to "Reduce bad luck" patented technology

The invention relates to a continuous heat treatment equipment and method for spherical fuel elements, including a furnace body, a heating and heat preservation system, a temperature control system, a loading and unloading system, a vacuum system, a waste discharge system, a process gas system, a pneumatic system, a water system, and an exhaust gas system. Combustion system and electrical control system to realize the continuous heat treatment of low temperature carbonization and high temperature purification of spherical fuel elements in the same equipment. The equipment and method can not only be used for continuous heat treatment of spherical fuel element green bodies, but also can be used for the preparation of matrix graphite ball products, realizing low-temperature carbonization and high-temperature purification in the same equipment, reducing material reversing, and the heat treatment time of spherical fuel elements is reduced by About 90 hours of original separate and separate processing is shortened to about 50 hours of continuous heat treatment, which can increase the production efficiency by 44.4%.

The invention discloses a mine material transportation scheduling system and method, wherein the scheduling system includes a material management module, a material sign-in module, a material scheduling module and a material transport module; the material management module is used to receive the material application proposed by the material sign-in module, Send instructions to the material scheduling department to arrange personnel loading; the material receipt module is used to determine the type, quantity and time of the required materials, select the material transfer method and submit a material application to the material management module, and make financial changes according to the proposed material application After receiving the arrival notice issued by the material scheduling module, confirm the receipt, and arrange personnel to unload and dispatch the vehicle after confirming the receipt; the material transportation module is used to obtain planned tasks and arrange personnel and vehicles reasonably. The invention can fundamentally solve the phenomenon of chaotic and inefficient material transportation scheduling in mining enterprises, and make the auxiliary transportation links of mining enterprises orderly, fast and efficient.

The invention discloses a high-quality steel slag iron powder production process. Solid slag is subjected to magnetic separation, rough smashing, magnetic separation and fine smashing, then the solidslag enters a ball mill to be ground, ground products pass through a rotary screen, and particle steel and slag powder are separated out; the particle steel is a final product, the slag powder passesthrough a birotor powder concentrator, tailings and rough middlings are separated out, and the tailings are final products; the rough powder passes through a magnetic separation roller, and tailings and steel slag iron powder are separated out; low-temperature smoke introduced through a high-temperature draught fan and high-temperature smoke are mixed in a smoke furnace, then enter the ball mill and serve as a drying agent for drying the solid slag and a carrier for conveying part of the tailings; gas-solid separation is achieved in a bag dust collector, gas is exhausted to the air through a main smoke exhaust fan, and solid is tailings. According to the high-quality steel slag iron powder production process, except for a smashing procedure, the negative pressure control technology is adopted in the whole process, and the beneficial effects of generating no circulating sewage or dust, being free of weather influence on production, effectively improving the grade of steel slag iron powder, reducing steel smelting production cost and the like are achieved.

The invention discloses a down-pressing nut replacement system which comprises an execution device and a control device, wherein the execution device is used for bearing and positioning a down-pressing nut when the down-pressing nut is replaced; and the control device is used for adjusting the up-and-down position of the execution device for bearing the down-pressing nut when the down-pressing nut is replaced. According to the down-pressing nut replacement system, through the cooperation of a guide rod and a guide sleeve, a bearing platform runs steadily; a throttling valve controls the running speed, so that the running speed can be adjusted in real time; the down-pressing nut replacement system is simple in structure and is operated safely and conveniently; reverse operation of the down-pressing nut is reduced; and the replacement time of the down-pressing nut is shortened from 2 to 3 days to 12 hours or so. The labor amount is reduced; and the stability, the safety and the accuracy of the down-pressing nut replacement process are fully guaranteed.

The invention discloses a system and a method for converting steel slag into renewable resources. The system comprises a steel slag powdering system, a steel slag separating system and a tail slag deep processing system, wherein the steel slag powdering system comprises desulphurization slag equipment, converter slag equipment, casting residue equipment and granulation self-extracting equipment which is communicated with the desulphurization slag equipment, the converter slag equipment and the casting residue equipment respectively; the steel slag separating system is connected with the granulation self-extracting equipment and comprises overturn vibration equipment, a magnetic separator, a crushing machine, a rod mill, screening / magnetic separation equipment and material storage equipment, wherein the overturn vibration equipment, the magnetic separator, the crushing machine, the rod mill, and the screening / magnetic separation equipment are led to the material storage equipment; the tail slag deep processing system is connected with a fine tail slag device and comprises a drying mechanism, a coarse grinding mechanism, a fine grinding mechanism, a first winnowing mechanism, a second winnowing mechanism, a first magnetic separation mechanism, a second magnetic separation mechanism and a steel slag fine powder groove. By the combination of the structures of the system, the design construction of the system for converting the steel slag into the renewable resources, which is clean and environment-friendly and reduces occupation space, is realized.

The invention relates to the technical field of construction, in particular to a reinforced concrete modelling construction method which is applicable to a large section chamber. According to the super-large section chamber reinforced concrete modelling construction method, a multi-vertical-rod type lining trolley is adopted to control the integral rigidity of a rack, a motor drives a walking mechanism to drive the trolley to move, formwork in place and tunnel reinforced concrete forming of closing mold are adjusted through a hydraulic oil cylinder and a screw jack, the multi-rod type lining trolley adopts a method of pouring the side wall and the arc portion together or separately pouring the arc wall according to the size, the construction period and the concrete supply conditions of the tunnel section. According to the reinforced concrete modelling construction method, the multi-rod type lining trolley is adopted, the side wall and the arc portion can be poured separately and simultaneously, the construction period and costs are saved, the splicing time and material reshipment are reduced, the trolley movement and positioning speed is rapid, and personnel operation is facilitated; the multi-rod trolley adopts full-hydraulic vertical closing mold, the motor driving is matched with walking of the rail, accurate positioning is easy, braking is convenient, movement safety risks are small, and the structure is reasonable.

The invention relates to a one-step copper smelting technology and a device thereof. The interior of a furnace body is divided into three zones, namely a smelting zone, a blowing zone and a refining zone, by a retaining wall; and two rows of spray guns which are arranged in a staggered manner and have an included angle with a vertical line are arranged at the bottoms of the zones; return dust is mixed and then added into mixed copper concentrate and a solvent through a charging opening of the smelting zone, oxygen-enriched air is sprayed through the spray guns to carry out self-heating smelting, to generate copper matte; the spray guns in the blowing zone spray oxygen-enriched air so as to blow copper matte into crude copper and slag; the spray guns in the refining zone supply oxygen-enriched air for oxidization, and supply natural gas as a reductant for reduction, and the generated anode copper with high purity is interruptedly discharged form a copper discharging opening, so that the low-altitude pollution problem caused by SO2 can be solved, the operation environment can be greatly improved, the utilization rate of sulfur and heat can be obviously increased, and further the economic benefits can be increased further; in addition, the invention provides a one-step copper smelting technology which is more advanced, shorter in flow, lower in investment, lower in comprehensive energy consumption, higher in recovery rate, and better in comprehensive utilization in comparison with the existing continuous copper smelting technology.

The invention relates to the field of construction of dome-combustion hot stoves and particularly relates to a rapid assembling method for an enlarged zone stove shell and a lining structure of a dome-combustion hot stove. The method is characterized by comprising the following steps: S-bend lower-part straight-section stove shell assembling, S-bend enlarged zone stove shell assembling, tile bearing plate-stud plate locating paying-off, inner container slotting, inner container hoisted-to-S-bend-interior assembling, tile bearing plate-stud plate upper-half welding, S-bend and straight-sectionstove shell jacking, tile bearing plate-stud plate rest lower-half welding and tile bearing plate mounting. According to the rapid assembling method, the problem during the assembly of an S-bend enlarged zone stove shell of the dome-combustion hot stove that the requirements on site space are high is effectively solved, meanwhile, secondary hoisting transportation can also be reduced, then, the assembling speed is accelerated, the approach time of large hoists is retarded, the machine shift of cranes is reduced, and the efficiency of construction is increased.

The invention discloses a track layering machine for track panels and a track layering method of the track layering machine, which are applied to track layering construction of railways. A track layering flat car is provided with a track layering portal frame support, and a track layering portal frame can be erected on the track layering portal frame support and moves along with the track layering flat car. In a track panel layering procedure, the track layering flat car runs to a tool track panel, and puts down and levels up the track layering portal frame, and the track layering portal frame is used for lifting the track panels on the track layering flat car for layering; in a reverse track panel layering procedure, the track layering flat car conveys the track panels to a reverse portal frame, the reverse portal frame lifts up the track panels, and the track layering flat car returns to the place of the reverse portal frame and receives the track panels. According to the track layering machine for the track panels and the track layering method of the track layering machine, which are disclosed by the invention, the tool track panel is used for assisting in the track layering flat car to move forwards, so that the operation efficiency is greatly improved, the tool track panel can be repeatedly utilized, the investment of main labors and circulation materials is reduced, the safety, the quality and the efficiency of construction are improved, and the track layering cost is reduced; the body of the track layering flat car and the tool track panel can be separated, so that the road transportation is convenient, the terrain limitation of the transportation is small, and the limitation of track transportation does not exist.

The invention provides an electric transmission line project foundation prefabricated construction method. The electric transmission line project foundation prefabricated construction method comprisesthe steps of a construction preparation stage, foundation prefabricated construction, prefabricated foundation transporting, excavation of a foundation pit and construction of an under layer, foundation hoisting in position, foundation backfilling and the like. The construction preparation stage comprises the steps of field selection, manufacturing of a movable type construction platform, manufacturing of a template, manufacturing of a suspension center pre-buried piece, hoisting of a steel wire rope and the like. The foundation prefabricated construction comprises the steps of preparation, mounting of inserting angle iron, rib braiding and template erecting, pouring, foundation identification, transferring and maintenance of the prefabricated foundation, quality detection of raw materials and concrete and the like. The prefabricated field in the construction method is fixed, the reshipment quantity of the construction raw materials, equipment and instruments are reduced, wear and loss in the reshipment process of the materials and the instruments are reduced, interference of outside factors is eliminated, resource investment is reduced, the influence of terrain to construction iseliminated, the operation frequency and time in the foundation pit are decreased, construction potential safety hazards are lowered, and the labor condition is improved.

The invention provides a thin material threading control method for guide rulers of a hot rolling coiler. The method comprises the following steps of: additionally arranging a pressure sensor, and additionally arranging an analog quantity input plate and a corresponding program in a PLC (Programmable Logic Controller); when steel is fed through a second frame, setting the opening degrees of the guide rulers by using a secondary computer: when the head part of a steel strip arrives at the middle position of each guide ruler, controlling to start up a primary short stroke and a second short stroke in sequence on the working sides and transmission sides of the guide rulers by using the PLC; judging whether the WS clamping force feedback on the working sides of the guide rulers is more than or equal to 7KN and can last for 50 milliseconds or not at the moment after, and if so, directly switching to a guide ruler working side pressure automatic control way; otherwise, setting a third short stroke: if the working sides of the guide rulers never meet a switching condition, directly switching to an AFC (Automatic Frequency Control) way after the third short strokes of the working sides of the guide rulers are completed. Due to the adoption of the method, the 'inner tower' phenomenon and head cutting loss of a steel coil can be eliminated, the total sealing rate is controlled to be below 1.8 percent, the hot rolling coiling quality is improved greatly, and rolling yield is increased greatly, and the recoiling quantity of sub-coils is reduced by over 30 percent.