31results about How to "Reliable equipment" patented technology

The invention provides a large-current ZnO arrester resistant current testing instrument, comprising a digital signal processor. A voltage channel is formed by the sequential cascading of a voltage sensor, a filter amplification circuit and an AD converter, a voltage signal is led out from a PT secondaly side by a voltage testing wire and is transmitted to the digital signal processor after processing; a current passage is formed by the sequential cascading of a current transmitter, a filter amplification circuit and an AD converter, a current signal is taken out from a discharging counter at the lower end of the arrester and is transmitted the current signal to the digital signal processor after processing. The current testing instrument has the advantages of high testing precision, convenient usage and safety and reliability.

The glass-metal sealing process for vacuum heat collecting tube includes the following steps: pre-oxidizing the part of the sealing metal workpiece, pre-vitrifying the part of the sealing metal workpiece, and sealing the glass and the pre-vitrified part of the sealing metal workpiece through heating. The glass-metal sealing process of the present invention has greatly lowered sealing temperature, greatly shortened sealing time, raised sealing quality, simplified sealing equipment and lowered production cost.

The invention provides a production method of fine oxide dispersed steel. The production method is characterized by comprising the following steps of: forming a through hole in the lower pipe wall of an RH (Ruhrstahl-Heraeus) downcomer, connecting the through hole with an external gas source or powder feeding equipment through a spray pipe, blowing inert gas into molten steel through the spray pipe in an RH molten steel refining and deoxidizing process or removing an oxygen product by blowing deoxidation powder by taking the inert gas serving as a carrier; and spraying useful alkali soil powder by taking the inert gas as a carrier or spraying useful oxide mass points to generate fine dispersed oxides and keeping clean circulation for less than 10 minutes after bellowing, wherein the inert gas is Ar, N2 or CO2 with the air flow of 10-1,000 L / min and the air pressure of 1.0-15 atm. The production method has a simple process and low production cost. By adopting the production method, a large amount of fine oxide dispersed steel with the oxide particle size being less than 1 mum can be produced stably and quickly.

The invention provides a high-resolution crystal orientation acquisition method based on a scanning electron microscope. The high-resolution crystal orientation acquisition method comprises the following steps: (1) preparing a metal sample with the thickness of 300-500 mu m in a wire cut electrical discharge machining manner; gradually polishing with gold-phase sandpaper to reduce the thickness to be less than 100 mu m; using an automatic twin-jet electropolisher to perform twin-jet electropolishing thickness-reduction for 30-200 seconds at voltage of 10-25 V in electrolyte; and (2) placing the metal sample in a pre-tilt sample stage for clamp fixing, and acquiring parameters at a tilt angle between the sample and an electron beam of 20-0 degrees, an acceleration voltage of 15-30 kV and a working distance of 5-9 mm. The high-resolution crystal orientation acquisition method provided by the invention realizes spatial resolution and angle resolution significantly superior to a conventional backscattered electron diffraction technology in crystal orientation analysis aspect under a scanning electron microscope platform, and further has advantages of being simple in equipment, convenient to operate, technically reliable, high in data acquisition efficiency, easy in processing and analysis, good in repeatability and the like.

The invention discloses an organic silicon complete variable-pressure thermal coupling rectification device and rectification method. The device comprises a high boiler removal tower, a low boiler removal tower, a high-pressure binary tower and a low-pressure binary tower. The low boiler removal tower and the low-pressure binary tower are each provided with a tower kettle coupling reboiler. The top of the high boiler removal tower is connected with the tower kettle coupling reboiler of the low-pressure binary tower, and a gas-phase material flow at the top of the high boiler removal tower provides a heat source for the tower kettle coupling reboiler of the low-pressure binary tower. The tower top of the high-pressure binary tower is connected with the tower kettle coupling reboiler of the low boiler removal tower, and a gas-phase material flow at the top of the high-pressure binary tower provides a heat source for the tower kettle coupling reboiler of the low boiler removal tower. By adjusting the feeding amounts of the high-pressure binary tower and the low-pressure binary tower, complete coupling of heat of the high boiler removal tower, heat of the low boiler removal tower and heat of the high-pressure binary tower and heat of the low-pressure binary tower is achieved, the defect that in the prior art, partial coupling between towers is achieved, and complete coupling is not achieved is overcome, energy consumption is reduced, and meanwhile, equipment investment which has to be additionally increased for stable operation of the system is reduced.

Disclosed is an underground wireless automatic control device for mining, belongs to the technical field of automatic control devices, and is used for wireless automatic control and monitoring of mining underground operating devices. The technical scheme includes that the mining underground wireless automatic control device comprises a plurality of control computers and a plurality of controllers, wherein programmable logic controller (PLC), distributed control system (DCS) and fieldbus control system (FCS) serve as the core of the plurality of controllers, and both the computers and the controllers are placed in an explosion-proof tank which reaches the mining safety level; the control computers and the controllers are connected through wireless signals; and data connections between controllers, between controllers and control computers, between control computers, and between control computers and remote computers are established. According to the underground wireless automatic control device for the mining, wireless connections of underground control can be achieved, controlling staff are enabled to monitor and control automatic operation of various devices in real time; the device can be moved without stop of production during excavation of a roadway and moving forward of a coal cutter, and connection and covering for the whole course of the underground control is achieved. The underground wireless automatic control device for the mining has the advantages of being high in degree of automation, reliable in connection, high in adaptability, comprehensive in control, and the like.

The invention relates to a fly ash curing and stabilizing system for household waste. The system comprises a fly ash curing system, a stabilizing system, a weighing hopper, a stirring treatment systemand an output device. Screw weighing feeders are arranged at the lower ends of the fly ash curing system and the stabilizing system correspondingly, and flow pipelines are arranged at the lower endsof the screw weighing feeders. The lower ends of the flow pipelines are connected with the weighing hopper. A stirrer and a water supply device are arranged on the stirring treatment system. A chelating agent storage tank is arranged in the water supply device. A liquid metering tank is arranged in the stirrer. The lower end of the stirrer is connected with the output device. By means of a curingand stabilizing process adopting a curing agent and an agent, the process is simple, equipment is reliable, the system is completely sealed on a powder side, dust is prevented from being generated, the material ratio is statically metered, the precision is high, the ratio is accurate, batch type stirring is adopted, the mixing uniformity is high, ton bag packaging is adopted, the environment is tidy, and the automation degree is high.

A lottery distributing system is mounted at the front end of a lottery automatic packaging production line, includes a roller conveyor, a support dividing line component, a support plate extraction-storage component, a line dividing stack component and a stack dividing book component. After lotteries are cut, the lotteries are placed on a support plate in an n*m manner, wherein n refers to row andm refers to line, and the lottery stacking height can be freely set; the support plate is manually pushed onto the roller conveyor; the support dividing line component includes a wide-width pallet conveyor, a movable push plate, a fixed baffle, a narrow-width pallet conveyor and a rack; the support plate extraction-storage component includes a clamping claw, a plate extraction mechanism, a lifting platform and a rack; the line dividing stack component includes a belt conveyor, a pushing module and a rack; the stack dividing book component includes a feeding belt conveyor, a feeding module A,a scraper blade belt conveyor A, lifting module A, a discharging belt conveyor, a movable baffle, a feeding module B, a scraper blade belt conveyor B, a lifting module B and a rack.

The invention discloses a device for dispersing nano material in scale via a liquid state turbulent flow instant high-pressure cutting method. The device comprises a feeding opening, a turbulent flow generating chamber, a high-pressure turbulent flow flowing tank and a discharging opening; flow with processed material enters the front end of the feeding opening, and the rear end of the feeding opening is connected to one side of the turbulent flow generating chamber; and the front end of the high-pressure turbulent flow flowing tank is connected to the other side of the turbulent flow generating chamber, and the rear end of the high-pressure turbulent flow flowing tank is connected to the discharging opening. The invention is practical and effective; the device is stable and reliable; and the nanostructure unit suspension of a plurality of materials prepared by the invention is expected to be applied to a plurality of fields such as industry, agriculture and the like.

The invention discloses a coking tail gas treatment method and a coking tail gas treatment device. A purpose of the invention is to solve the problems of secondary pollution and the like caused by vapor and malodorous gas pollution and tail gas VOC and coke powder discharge along with tail gas of the coke pool and the coke powder of the existing delayed coking device. According to the device, cokepool tail gas, coke tower discharge steam, coke tower tail gas and tail gas generated by other equipment in a coking device enter the gas-liquid separation section of a tail gas treatment tower and are subjected to gas-liquid separation; the gas-phase coking tail gas rises to a desulfurization section and is in countercurrent contact with an absorption liquid entering from the upper portion of the desulfurization section so as to be desulfurized; the desulfurized coking tail gas continuously rises to reach a desaturation section; after desaturation, the tail gas is discharged from the top ofthe tail gas treatment tower, VOC is removed, and then the tail gas is emptied; the rich absorption liquid is pumped out, pressurized and returned to the upper portion of the desulfurization section;after failure, the waste liquid is externally sent to a treatment unit; and the washing water containing solid particles in the tail gas treatment tower enters a settling section downwards, the washing sewage containing solid particles comes out from the bottom of the tail gas treatment tower, and the clarified washing water comes out from a washing water pumping hopper at the lower portion of thetail gas treatment tower and is pressurized so as to be recycled as circulating washing water.comes out from the top of the tail gas treatment tower, VOC is removed, and then the tail gas is emptied;the rich absorption liquid is pumped out, pressurized and returned to the upper portion of the desulfurization section; after failure, the waste liquid is sent to a treatment unit; and the washing water in the tail gas treatment tower flows out downwards from the bottom of the tail gas treatment tower, one part is discharged out of the device, and the other part is pressurized and then recycled as circulating washing water.

The invention discloses a coking tail gas treatment process and a coking tail gas treatment device. A purpose of the invention is to solve the problems of secondary pollution and the like caused by vapor and malodorous gas pollution and tail gas VOC and coke powder discharge along with tail gas of the existing delayed coking device. According to the device, coke pool tail gas, coke tower dischargesteam, coke tower tail gas and tail gas generated by other equipment in a coking device enter the gas-liquid separation section of a tail gas treatment tower and are subjected to gas-liquid separation; the gas-phase coking tail gas rises to a desulfurization section and is in countercurrent contact with an absorption liquid entering from the upper portion of the desulfurization section so as to be desulfurized; the desulfurized coking tail gas is discharged from the top of the tail gas treatment tower, enters a desaturator and is desaturated; the desaturated coking tail gas is discharged fromthe desaturator, VOC is removed, and then the tail gas is emptied; the rich absorption liquid is pumped out, pressurized and then returned to the upper portion of the desulfurization section; after failure, the waste liquid is externally sent out to a treatment unit and is treated; and the washing water in the tail gas treatment tower flows out downwards from the bottom of the tail gas treatmenttower, one part is discharged out of the device, and the other part is pressurized and then recycled as circulating washing water.

The present invention relates to a method for detecting crack formation in a lifting member, comprising the steps of measuring the stress under load at two points of the lifting member, comparing the measured stresses, and when the measured stresses differ too much from each other A warning signal is generated frequently. The invention also relates to a device for detecting crack formation in a lifting member, comprising: means arranged at two points of the lifting member for measuring the stress under load; connected to the measuring means for comparing the measured means for stress; and means connected to the comparison means for generating a warning signal when the measured stresses differ too much from each other. Finally, the invention relates to a lifting frame comprising: a plurality of lifting members mounted on the lifting frame close to the corners of the lifting frame; and a crack detection device connected to the lifting members.