31results about How to "Save unloading time" patented technology

The invention relates to a technology for producing 5-acetyl amido benzimidazolone. The condensation process is as follows: o-phenylendiamine, carbamide, water and concentrated sulfuric acid are added into a condensation reaction kettle step by step, the pH value is controlled to between 6 and 7, and benzimidazolone is obtained by drying the mixture; the nitration process is as follows: the benzimidazolone, chlorinated benzene and concentrated sulfuric acid are added into a nitration reaction kettle, the chlorinated benzene is reclaimed and purified by reduced pressure distillation and water boiling, and 5-nitryl benzimidazolone is obtained by drying the mixture; the reduction process is as follows: the 5-nitryl benzimidazolone, iron powder, hydrochloric acid and water are added into a reduction reaction kettle, the mixture is subject to suction filtering, cooling, crystallization and drying after the reaction for producing the 5-amino benzimidazolone; and the acetylization process is as follows: the 5- amino benzimidazolone, Diketene, phosphoric acid, caustic soda liquid and water are added into an acetylization kettle, the pressure inside the kettle is discharged in the temperature rising process, and the mixture is subject to suction filtering and drying to produce the 5-acetyl amido benzimidazolone. The process has the total yield coefficient up to 75 percent, purity quotient more than 99 percent and the product quality which meets the international standards of the same products at home and abroad.

The process of close-ring synthesizing anthraquinone from o-benzoylbenzoic acid includes the following steps: A. heating o-benzoylbenzoic acid in close-ring reactor to eliminating surface water; B. adding fuming sulfuric acid with SO3 content of 16-24 % in 1.3-1.8 times weight of o-benzoylbenzoic acid and close-ring reaction at 138-200 deg.c for 1 hr; C. separating the reaction product in separating reactor, filtering, water washing, drying, etc. to obtain dry anthraquinone product. The present invention has less sulfuric acid consumption, low production cost, less exhausted waste acid, low power consumption and short reaction time.

The invention discloses a liquid unloading method for liquefied natural gas or coal gas. The liquefied natural gas (LNG) liquid unloading process comprises the following steps: connecting three metal flexible pipes with an unloading platform, pressurizing a cryogenic liquid tanker by using an unloading supercharger to form a pressure difference between the cryogenic liquid tanker and a storage tank, unloading the LNG into the storage tank, and unloading residual gas in the cryogenic liquid tanker to user pipe network by using a medium pressure gas supply system. Compared with the existing liquid unloading method, the invention decreases the residual gas of the cryogenic liquid tanker from 0.4MPa to 0.15Mpa, and the residual gas in the tanker also decreases from 500kg to below 200kg, so as to meet the requirements of customers and save gas unloading time from the original 1 h to 15 min; and the safety coefficient is improved and the production cost is reduced.

The invention discloses a double rewinding machine of grey cloth, relating to the technical field of spinning machinery, in particular to the structure technology of the rewinding machine of the grey cloth. Two upper cloth-guiding rollers are symmetrically arranged on a stand; two groups of discharging frames are respectively placed on the two outer sides of the two upper cloth-guiding rollers; a pair of clothbeam supports are supported against each discharging frame through a bearing; and a group of active discharging rollers is respectively arranged at one side of each discharging frame. When one group of grey cloth is discharged, the other group of grey cloth is arranged on the other discharging frame. The double rewinding machine of the grey cloth can greatly save the discharging time and improve the work efficiency of discharging.

The invention discloses a coiling method of a steel coil, belongs to the technical field of automatic control, and aims to solve the problem that an outer ring of the steel coil is loose. According to the method, three lifting actions of a steel coil trolley are triggered when a certain distance is calculated from a strip tail to a stop position according to a current diameter of the steel coil; and in the drifting process, a residual length of a strip tail of strip steel is calculated in real time, and when the strip tail of the strip steel is about to leave an upper pressing roller of a coiling machine, the steel coil trolley automatically triggers three times of lifting to make contact with the strip steel, so that steel coil coiling is completed. The method has the advantages that the problem that the outer ring of the steel coil is loosened is effectively solved, a coil receiving speed of the steel coil trolley is increased, the labor frequency that an operator needs to frequently and manually inch the coiling machine to rotate by one circle to eliminate loosening of the outer ring of the steel coil is reduced, and continuous and stable high-level automatic production is guaranteed.

The invention discloses a double open type workbench for double-surface machining of workpieces. The workbench comprises an outer ring table and a center table, wherein a through groove is formed in the middle of the outer ring table, and the center table is located on the inner side of the through groove; a placement groove is formed in the center table; a first movable plate assembly and a second movable plate assembly which can automatically so as to control opening/closing of a port of the placement groove are arranged on the front side and the reverse side of the center table correspondingly; at least three guide holes which are annularly formed around the placement groove are formed in the center table; a first driving mechanism is arranged on the outer ring table and is used for driving the center table to turn over; every time the first driving mechanism acts, the center table turns over by 180 degrees; a second driving mechanism is arranged at the end, located at any one of the guide holes, of the outer ring table; and each second driving mechanism comprises an ejector rod and a power unit, wherein the ejector rod is coaxially arranged with the corresponding guide hole andcan extend into the corresponding guide hole, and the power unit is used for driving the ejector rod to extend in the direction of the corresponding guide hole. The workbench has the advantage that the production efficiency of double-surface machining of the workpieces can be effectively improved.

The invention discloses an air valve one-time forming grinding machine which comprises a rack, a feeding conveying device, a discharging conveying device, a workpiece main shaft, a grinding wheel main shaft and a finishing wheel main shaft. The workpiece main shaft can move front and back in the axial direction through a workpiece main shaft sliding table. A discharging ejector rod limited through an ejector rod support and an elastic telescopic pin on the ejector rod support is inserted into an inner hole of an elastic chuck in the workpiece main shaft, an ejector rod position detection sensor is arranged on the ejector rod support, a charging positioning push rod capable of moving front and back is arranged at the front end of the workpiece main shaft, the grinding wheel main shaft, the finishing wheel main shaft and the workpiece main shaft are arranged in parallel, the grinding wheel main shaft moves and feeds in the radial direction through a grinding wheel sliding seat, and the finishing wheel main shaft is arranged on the grinding wheel sliding seat and can feed in the radial direction. By the adoption of the air valve one-time forming grinding machine, the structure of a clamping mechanism in valve grinding can be optimized, clamping and discharging are rapid and reliable, grinding wheel forming and finishing can be completed in time on the premise that the normal production takt of valve grinding is not affected, and the grinding quality and the production efficiency are improved.

The invention discloses a wire removal device for a small-sized wire cutting machine tool, which includes a mounting base, a transmission shaft, a friction wheel, a first wire receiving reel and a second wire receiving reel, and the installation base includes a V-shaped magnetic suction plate and a rib plate , a mounting plate, a left support plate and a right support plate, the V-shaped magnetic suction plate is arranged on the lower rear plane of the mounting plate, ribs are respectively provided on both sides of the mounting plate; There are a left support plate and a right support plate; a transmission shaft is arranged above the left support plate and the right support plate, and one end of the transmission shaft is provided with a wire collection disc 1 and a wire collection disc 2, and the wire collection Disk one is connected with the transmission shaft through a transmission pin, and the other end of the transmission shaft is provided with a friction wheel, and the friction wheel is connected with the transmission shaft through a connecting screw. The invention has the advantages of simple structure, fast and efficient disassembly of broken wires, can greatly reduce the wire unloading intensity of wire cutting machine operators, and save wire unloading time.

The invention discloses viburnum flower planting transplanting and fertilizing equipment. The equipment comprises a base and material collecting bins, wherein a station is arranged at one end of the top of the base; the material collecting bins are arranged on the side walls of the base on the two sides of the station; two rotating rods are arranged on one side of the station side by side; mounting frames are arranged on the two rotating rods correspondingly; a plurality of discharging barrels are arranged in the two mounting frames; and a supporting plate is arranged at the bottom of the base. Two third transmission wheels on a third transmission shaft drive rotating gears on the two rotating rods to rotate, and then the mounting frames rotate; viburnum flower rhizomes in one of the discharging barrels in the mounting frames enter an oval plate, so that the placement work of the viburnum flower rhizomes is achieved; and meanwhile, a farmer places the viburnum flower rhizomes and fertilizer in the material collecting bins into the empty discharging barrel, so that the feeding work is achieved, the feeding work is completed while the transplanting work is conducted, the transplanting efficiency is greatly improved, the discharging time is saved, it is guaranteed that the fertilizer makes contact with the viburnum flower rhizomes, and the fertilizer utilization rate is increased.

The invention discloses a bidirectional cutting machine for natural gas pipeline machining and a natural gas pipeline machining technology, and belongs to the technical field of natural gas pipeline machining. The technical solution of the bidirectional cutting machine comprises a frame and two gear rings, wherein the two gear rings are located inside the frame, the surfaces of the gear rings are in meshed connection with annularly-distributed first gears, the first gears are fixedly connected to the inner wall of the frame, first motors are fixedly connected to the back face of the inner wall of the frame, second gears are fixedly connected to output shafts of the first motors, the second gears are in meshed connection with the gear rings, first electric push rods are fixedly connected to the inner top walls and the inner bottom walls of the gear rings correspondingly, the other ends of the first electric push rods are fixedly connected to clamping plates, the top of the frame is fixedly connected to a second motor, and an output shaft of the second motor is fixedly connected to a first lead screw. The the bidirectional cutting machine for the natural gas pipeline machining and the natural gas pipeline machining technology have the advantages that the inner wall and the outer part can be cut at the same time, the required cutting time is short, and the cutting efficiency is high.

The invention discloses a high-speed sewing machine capable of raising a machine head. The machine comprises a base, and the machine head which is mounted on the base; the base is fixedly mounted on a stand; a rotating shuttle main shaft for driving a rotating shuttle is mounted on the base; a driving shaft for driving the rotating shuttle main shaft is mounted on the machine head, wherein the machine head is pivoted to the base; a cylinder device for raising the machine head is mounted below the stand; a derailing device for preventing the driving shaft and the rotating shuttle main shaft from derailing is arranged on the base. According to the machine, the cylinder device can control the machine head to raise to discharge materials conveniently, and thus the discharging time is reduced, and the production efficiency is increased; in addition, the driving shaft and the rotating shuttle main shaft can be prevented from derailing through the derailing device; therefore, the machine is flexible to operate, and stable in working efficiency; a positioning device mounted at the back of a connecting block in the cylinder device is able to position the cylinder device, so that the safety working coefficients can be increased.

The invention discloses a multidirectional grain unloading device and a harvester. The multidirectional grain unloading device comprises a grain tank body, a first conveying auger, a transfer conveying mechanism, a rotating mechanism and a grain unloading barrel; the first conveying auger is installed in the grain tank body, the conveying direction of the first conveying auger in the grain tank body is arranged along a harvester body to be matched with the grain tank body, and the output end of the first conveying auger sequentially communicates with the transfer conveying mechanism, the rotating mechanism and the grain unloading barrel; and the grain unloading barrel is rotationally installed at the top of the grain tank body through the rotating mechanism and can horizontally rotate under the driving of the rotating mechanism. According to the multi-direction grain unloading device, the situation that the side wall of the grain tank body limits the rotation amplitude of the grain unloading barrel can be avoided, the grain unloading barrel can be driven to horizontally rotate through the rotating mechanism, and therefore multi-direction grain unloading is achieved.

The invention discloses a high-efficiency multi-azimuth synchronous machining device. The device comprises a workbench, a first machining mechanism arranged above the workbench and a second machiningmechanism arranged on one side of the workbench, wherein the workbench comprises an outer ring table and a center table; a storage groove is formed in the center table; a first vertical frame, a second vertical frame and a first driving mechanism are arranged on the upper surface and the lower surface of the central table, a first guide rail, a first movable plate and a second drive mechanism arearranged on the first vertical frame, and a second guide rail, a second movable plate and a third driving mechanism are arranged on the second vertical frame; a guide hole is formed in the center table; and a fourth driving mechanism and a fifth driving mechanism are installed on the outer ring table, the fourth driving mechanism is used for driving the center table to turn over, and the fifth driving mechanism comprises an ejector rod which can extend into the guide hole and a power unit which is used for driving the ejector rod to extend and retract. According to the high-efficiency multi-azimuth synchronous machining device, the workpiece end surface and the side wall are synchronously machined, and the workpiece clamping and discharging time is saved.

Provided is a beating machine achieving continuous discharging. The beating machine comprises a pulp tank which is internally provided with a partition wall, a wash drum and a beater roll, the bottom of the pulp tank is provided with a drain outlet and a discharge outlet, the discharge outlet is connected with a discharge tube which is perpendicular to the water level, the discharge tube is internally provided with multiple filter screens, a movable and openable cover is arranged at the discharge outlet, and the cover is located above the filter screens. According to the beating machine achieving continuous discharging, paper pulp which achieves the beating degree can be discharged in the beating process of the paper pulp, the discharging time is saved, and the paper pulp achieving the beating degree is prevented from multiple times of beating in the pulp tank.