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83results about How to "High quality product" patented technology

Machine-made sand processing process

The invention discloses a machine-made sand processing process, which comprises the following processes that stone materials enter a jaw crusher to be decomposed into stone blocks not greater than 350mm, and then, the stone blocks enter a reverse smashing machine; the stone blocks are crushed into crush stones by the reverse smashing machine, the crushed stone enters a primary vibration sieve to be screened, the crushed stones smaller than 31.5mm enter an impact type crusher, and the crushed stones greater than 31.5mm return the reverse smashing machine to be crushed; after entering the impact type crusher to be crushed, the crushed stones enter a two-grade vibration sieve to be screened, and sand smaller than 3mm enters a sand washing machine; sand greater than 3 to 5mm enters an efficient fine crushing machine to be made into sand smaller than 3mm, and the sand smaller 3mm enters the sand washing machine after entering two-grade vibration sieve to be screened; the crushed stones greater than 5mm enter a three-grade vibration sieve; the crushed stones are screened into the crushed stones in three grades by the three-grade vibration sieve, and the crushed stones are used for material discharge in the vibration sieve after being flushed by water. The machine-made sand produced by the process provided by the invention has the advantages that each index can respectively meet the technical index of high-performance on machine-made sand, and the product quality is high, and stability and reliability are realized.
Owner:CHINA RAILWAY NO 5 ENG GRP +1

Intelligent screening system based on numerical control processing technology for difficult-to-machine metal

The invention discloses an intelligent screening system based on the numerical control processing technology for difficult-to-machine metal, which comprises the following subsystems: a parameter database subsystem, a fixed data source subsystem, an online detection and feedback subsystem, a technology intelligent comprehensive screening optimized scheme system, a data mining and supplementing subsystem, a simulation verification subsystem and an application operating system. The system has the characteristic of recognizing the reasonableness, the advancement and the high efficiency property of each technology scheme in the database, and is used for collecting the processing information of difficult-to-machine metal materials, the machine tool and cutter selection experience and cutting technological parameters accumulated in production practices and experiments. The roughness test data of the optimized cutting technological parameters is selected for processing, so that a reasonable and mature technological scheme is recommended for manufacturing enterprises, and the numerical control processing precision of the difficult-to-machine metal materials is controlled. The purposes of increasing the processing efficiency of the difficult-to-machine materials, reducing processing cost and acquiring high quality products are achieved.
Owner:曾谊晖

Hydrogenation method of heavy hydrocarbon multi-segment fluidized bed

The invention discloses a hydrogenation method of a heavy hydrocarbon multi-segment fluidized bed. The technical process comprises the steps of: mixing thick heavy hydrocarbon raw materials with gas phase material flow which is discharged from a fluidized bed hydrogenation-desulfuration reactor and a hydrogenation-denitrification reactor to enter into a hydrogenation-demetalization reactor; cooling and purifying reacted gas phase material flow to be taken as recycle hydrogen; mixing the demetallized liquid phase material flow with hydrogen to enter into the fluidized bed hydrogenation-desulfuration reactor; mixing the desulfurated liquid phase material flow with hydrogen to enter into the hydrogenation-desulfuration reactor; and leading the denitrified liquid phase material flow to enter into a separating device. The technology adopts a new reactor assembly mode to machine heavy oil raw materials with high viscosity and bad quality, can provide a new flexible, high-efficiency and energy-saving operation mode, organically combines the performances of the raw materials with the characteristic of each hydrogenation reaction, makes full use of reaction heating on the premise that a device is guaranteed to be stably operated, provides a product with good quality, and can flexibly adjust the operation process according to the requirement of a refinery.
Owner:CHINA PETROLEUM & CHEM CORP +1

Rotary crystallization kiln for alpha gypsum powder

ActiveCN104944816AWell mixedIncrease heat exchange frequencyEngineeringStatic mode
The invention discloses a rotary crystallization kiln for alpha gypsum powder. The rotary crystallization kiln for alpha gypsum powder comprises a rack, a kiln body, a feeding end, a discharging end, a tail gas collector, a heat supply chamber, a heat exchanging pipe, an inlet end socket, an outlet end socket and a power transmission device, wherein the kiln body and the power transmission device are mounted on the rack; the power transmission device is used for driving the kiln body to rotate on the rack, and when the inlet end socket and the outlet end socket are closed, the kiln becomes an airtight space; and a circle of heat exchanging pipe communicated with the heat supply chamber and having the function of a lifting board is fixed on the inner wall of the kiln body. The rotary crystallization kiln is in a dynamic mode rather than a static mode; the heat exchanging area is increased due to the arrangement of the heat exchanging pipe; heat energy is fully used through multiple technical methods, and therefore, energy consumption is lowered; the functions of pre-drying, autoclaving crystallization and product drying are integrated, the process steps are reduced, the quantity of equipment is lowered, the production time is shortened, and the production cost is lowered; and no external high-temperature steam or aqueous solution participates in heat exchange and reaction, and hemihydrate gypsum is prevented from being hydrated again into dihydrate gypsum, so that the product quality is more stable.
Owner:湖南昌迅科技环保股份有限公司

Anthracite carbon casting formed coke

InactiveCN101280203ARealize protection and meet emission standardsHigh carbon contentSpecial form destructive distillationFoundryHigh carbon
Disclosed is anthracite carbon foundry formed coke which solves the disadvantages of uneven granularity, insufficient oxygen-adding, high broken rate and environment pollution found in the formed coke in the prior art; the anthracite carbon foundry formed coke is characterized in that the anthracite or non-coking coal is used to produce the anthracite carbon foundry formed coke; the steps include that the raw coal is conveyed to the factory, crushed and grinded to powder; the binder is added to the grinded powder and the mixture is stirred under the cooling condition, and then stirred evenly after being heated; the mixture is conveyed to the pressing machine for the extruding formation; the formed material is conveyed to the carbonization chamber and then is processed with dry distillation and carbonization under the conditions of air-isolation and the temperature ranging from 950 DEG C-1050 DEG C; finally, the formed material is cooled and the finished product is outputted to be stored in the storehouse for sale; the process of comprehensive utilization of the coke-oven gas generated in the carbonization chamber is set for the lime joint production; the process of dust removal and desulfurization is set for the flue gas and SO2 in the exhausted gas; based on the special binder formula and the special product structure and compared with the traditional coking method, the anthracite carbon foundry formed coke has the advantages of high carbon content, high calorific value, low ash content and sulfur content, crush resistance, abrasion resistance, good intensity, moderate reactivity, high intensity after reaction, good cold and heat intensity, reasonable and simple structure, small investment, low expense and specially being applicable to the coking and the mechanical casting industries.
Owner:YANGQUAN YANGMEI FORMED COKE TECH DEV CENT

Flexible steering device for conveying rod-shaped materials

The invention relates to the field of rod-shaped material storing and conveying, in particular to a flexible steering device for conveying rod-shaped materials. The flexible steering device for conveying the rod-shaped materials comprises a circular disc storing-conveying device. A semicircular outer blocking plate and an inner side blocking plate are arranged at the steering portion of the circular disc storing-conveying device. A swinging arc flow guiding plate which is connected through a hinged shaft is arranged at a material inlet portion between the outer blocking plate and the inner side blocking plate. The swinging arc flow guiding plate is connected with a supporting block through the hinged shaft. The two ends of the supporting block are arranged in the middle of the outer blocking plate and the inner side blocking plate through an upper supporting rod and a lower supporting rod. A fixed arc flow guiding plate is arranged at a material output part between the outer blocking plate and the inner side blocking plate. An elastic device is arranged on the swinging arc flow guiding plate, and the position of the elastic device is adjusted according to a preset range. The problems that the conveyed rod-shaped materials are squeezed during steering, and gaps are generated during steering can be avoided, even output of the rod-shaped materials and material quality are guaranteed, and high-quality products are obtained.
Owner:河南施普盈科技有限公司

Net rack production line for producing heat insulation board wall

The invention discloses a net rack production line for producing a heat insulation board wall. The net rack production line comprises a flat net welding machine for welding already straightened longitudinal bars and transverse bars into flat net layers, a heat insulation board cutting machine for carrying out heat insulation board cutting in the thickness, length and width directions of an heat insulation board and forming the heat insulation boards meeting the specification requirements by cutting, an oblique inserting rib welding machine for inserting oblique inserting ribs into the heat insulation board and welding the oblique inserting ribs to the two flat net layers up and down, and a net rack heat insulation board conveyer for conveying an already produced net rack heat insulation board; the feed end of the oblique inserting rib welding machine corresponds to the discharge end of the flat net welding machine and the discharge end of the heat insulation board cutting machine; thedischarge end of the oblique inserting rib welding machine corresponds to the feed end of the net rack heat insulation board conveyer; and the flat net welding machine, the heat insulation board cutting machine, the oblique inserting rib welding machine and the net rack heat insulation board conveyer are each provided with control equipment for controlling various mechanisms in the flat net welding machine, the heat insulation board cutting machine, the oblique inserting rib welding machine and the net rack heat insulation board conveyer to carry out coordinative operation. Welding productionof the flat nets, efficient cutting of the heat insulation board, accurate insertion and welding of the oblique inserting ribs, conveying and transportation of the net rack heat insulation board are integrated in the net rack production line, so that the effect of efficiently producing the net rack heat insulation board throughout is realized.
Owner:河北森阳建筑设备科技有限公司

Multistage hydrogenation method for heavy hydrocarbon

The invention discloses a multistage hydrogenation method for heavy hydrocarbon. The method comprises the following technical steps of: mixing a condensed heavy hydrocarbon raw material and a gas phase material flow discharged from a hydrogenation desulfurization reactor and a hydrogenation denitrification reactor, and putting the mixture into a boiling bed hydrogenation demetalization reactor; cooling and purifying the reacted gas phase material flow and taking the cooled and purified reacted gas phase material flow as recycled hydrogen; mixing a liquid phase material flow subjected to the boiling bed demetalization reaction and the hydrogen, and putting the mixture into the hydrogenation desulfurization reactor; mixing the liquid phase material flow subjected to the desulfurization reaction with the hydrogen, and putting the mixture into the hydrogenation denitrification reactor, wherein at least one of the hydrogenation desulfurization reactor and the hydrogenation denitrification reactor is a fixed bed reactor. Compared with the prior art, the method provides a novel flexible, efficient and energy-saving operating mode for treating inferior heavy and residual oil raw materials; the property of the raw materials is organically combined with characteristics of the hydrogenation reactions, so the reaction released heat is fully used, the quality of the product is perfect and the operation process can be flexibly adjusted as required on the premise of guaranteeing the stable operation of a device.
Owner:CHINA PETROLEUM & CHEM CORP +1

Method for consistent hole tray seedling cutting for photinia fraseri

InactiveCN103283448ARealize large-scale cutting plantingRealize large-scale cutting propagationHorticultureAxillary budScars
The intention discloses a method for consistent hole tray seedling cutting for photinia fraseri, and belongs to the field of seedling cultivation. The method includes that fresh and vigorous photinia fraseri branches are harvested and subjected to strict grading to guarantee the same to be consistent in size, cuts of seedlings are preferably 3-3.5cm in length, and each seedling reserves one leaf and one bud; an upper cut is located 2mm above an axillary bud of the reserved leaf to ensure vitality of the axillary bud, and a lower cut is selectively arranged 1mm below a leaf stalk or a stipule scar so as to facilitate rooting; roots of the seedlings are treated by being quickly dipped in hormone, and the seedlings are cut into a hole tray full of matrix according to 40cm X 35cm in space between rows, normal roots are watered sufficiently, and management is followed. By strict cutting control, high-quality consistent seedlings are harvested in large-scale cutting cultivation of the photinia fraseri. Special treatment is given to mother branch collecting, the cuts of the seedlings and biological hormone dipping, and the seedlings are subjected to the management after the seedling cutting, so that large-scale cutting propagation of the photinia fraseri is realized, and high-quality products are obtained.
Owner:JIANGSU MACRO AGRI SCI & TECHLIMITED

Program control smoking and roasting betelnut production line

The invention discloses a program control smoking and roasting betelnut production line, which comprises a smoking and roasting oven, a smoke generator, a heat conducting oil boiler, a drier, a fruit ripening machine, a bucket elevator and a conveyor, wherein a sensor, a smoking and roasting pipe and a first heating oil pipe are arranged in the smoking and roasting oven, an exhaust fan and a blast blower are arranged in positions, near the smoking and roasting box, on a flue, the smoking and roasting pipe is connected with the smoke generator through the flue, a second heating oil pipe is arranged in the fruit ripening machine, the first heating oil pipe and the second heating oil pipe are connected with the heat conducting oil boiler through an oil path, the sensor connects and controls a special control valve and the exhaust machine, a smoke inlet of the smoke generator is connected with the drier, and smoke exhausted by each exhaust fan is gathered in the drier. The program control smoking and roasting betelnut production line has the advantages and positive effects that the three-waste discharge of the production line conforms to national environment-protection discharge standards, the zero discharge is basically realized, the problems caused by the adoption of manual control on smoke degree, temperature, humidity and the like of the existing production equipment are solved, and the product quality qualification rate and the economic benefits are improved.
Owner:张锡来

Shield tunneling machine upper shield deformation detection and online correction method

The invention discloses a shield tunneling machine upper shield deformation detection and online correction method. The method includes the steps that laser scanning data of N measuring areas of a shield are collected respectively, the fitting diameter of the shield is obtained according to the laser scanning data, and a three-dimensional image of the shield is obtained through rendering; whetherthe difference value of the fitting diameter and the design diameter of the shield is in the preset range or not is judged, and if the difference value of the fitting diameter and the design diameterof the shield is in the preset range, scanning is stopped; and if the difference value of the fitting diameter and the design diameter of the shield is not in the preset range, the position of a supporting point of the shield is adjusted according to the shield deformation reflected by the three-dimensional image, laser scanning data of all the measuring areas are collected again, subsequent stepsare executed, and scanning is stopped till the difference value of the fitting diameter and the design diameter of the shield is in the preset range. By means of the method, deformation of a workpiece can be accurately obtained, errors between the deformation of the workpiece and the theoretical mathematical model are obtained, and therefore proper correction can be conducted conveniently. In addition, the method is not limited by to-be-machined sizes, the measuring and detection size range is enlarged, an existing cumbersome measuring mode is changed, and the measuring efficiency and the measuring quality are improved.
Owner:CHINA RAILWAY CONSTR HEAVY IND

Production method of CoCrMo alloy for artificial joints

The invention relates to the field of cobalt-base alloys, in particular to a production method of a CoCrMo alloy for artificial joints. According to the method, at first, a forged blank is obtained bymeans of vacuum induction furnace smelting and electroslag remelting; then the blank is heated to 1150 DEG C-1250 DEG C for heat preserving, and then forging is carried out; in the forging process, the temperature of the blank is strictly controlled within a certain temperature range, the temperature preserved for the final heating number is 1150 DEG C, the temperature for final forging of each heating number is no lower than 1000 DEG C, and thus it is guaranteed that the CoCrMo forged blank is always in a good plastic processing state; and after forging, diffusion annealing treatment is carried out, and the annealing temperature ranges from 1000 DEG C to 1050 DEG C. According to the production method, the qualified CoCrMo forged blank is obtained through the production method, qualifiedraw materials are provided for manufacturing the artificial joint parts, the most important link for obtaining the raw materials of the qualified CoCrMo artificial joint parts is forging, and strict control over the temperature for initial forging and final forging is the most key part for ensuring that the high-quality products are obtained and the production yield is increased.
Owner:KAILI UNIV
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