32results about How to "Troubleshoot follow-up issues" patented technology

The invention discloses an imaging method and a device for detecting band surface defects, wherein the method comprises establishing a sync signal generating unit to generate sync signals, synchronously controlling a switching unit and a camera shooting unit, establishing a light source switching unit, using the switching unit to switch and control the following two light sources, and using the two light sources to alternatively light the surfaces of bands, and respectively and only forming a single ground (a light field, a dark field) to image with the camera shooting unit in a scanning cycle, and obtaining total band surface defect images. The same defect on the band surface can be accurately matched with images which are formed on the same camera shooting unit and different illumination fields. The method avoids the post-treatment problem which is generated by the same defect which repeatedly images, greatly improves the accuracy of detecting the band surface defects, and in addition, and the method further lowers the production cost of the image device and the complexity of the structure.

The invention discloses an iron oxide doped iron metal organic framework material and a green macro preparation method and an application thereof. The preparation method comprises the following steps:(1) grinding and mixing ferrous sulfate heptahydrate and trimesic acid evenly, adding a sodium hydroxide solution, transferring to a micro wave reaction kettle, carrying out ultrasonic treatment, heating, and cooling to room temperature to obtain a mixed liquid; and (2) washing the mixed liquid obtained in the step (1), centrifuging to obtain a solid, washing the obtained solid, and drying in vacuum to obtain the iron oxide doped iron metal organic framework material. A heterogeneous catalyst is synthesized by a microwave solid-phase co-crystallization method, the synthesis cycle is greatly shortened, the synthesis process is green, environmentally friendly and efficient, and the synthesized iron oxide doped iron metal organic framework material can make full use of an unsaturated metal site to efficiently activate persulfate to degrade organic pollutants, avoid the generation of iron mud, reduce the cost of synthesis of the heterogeneous catalyst material and the cost of degradationof organic pollutants, and improve water environment quality.

The invention discloses a system and method for safe filling after liquid ethane pipeline overhauling. The system comprises a trunk system, a trunk valve chamber system, an ethane filling system and apipeline temperature and pressure detection system, the trunk valve chamber system is responsible for emptying and reopening of upstream and downstream pipelines of a valve chamber and also providesa channel for replacing of a trunk pipeline, and the ethane filling system is used for introducing ethane from an upstream trunk line, heating the ethane for temperature adjustment and then feeding the ethane into a to-be-opened downstream trunk line before the downstream trunk line is reopened. According to the functional demand of reopening of a liquid ethane pipeline after overhauling and releasing, on the basis of the characteristic that the liquid ethane is vaporized under the low pressure to cause the low temperature, by adopting the measures that an upstream pipe section provides a medium filling channel through a valve chamber bypass, an initial-stage filled medium is externally connected with equipment for vaporization heating, and middle-and-later-stage filling, boosting and liquidation are conducted, the problem of low temperature of the medium in the filling process of an isolated and overhauled section of the liquid ethane pipeline is effectively controlled, safe operationof the liquid ethane pipeline is guaranteed, and the effective guarantee is provided for safe operation of the liquid ethane pipeline.

The invention relates to the field of petrochemical sump oil etratment and discloses a cleaning treatment method for tank cleaning crude oil. The method comprises the following steps of: (1) introducing the tank cleaning crude oil into an emptying tower of a delayed coking device, and contacting the tank cleaning crude oil with second high-temperature oil gas generated during the coke cooling of adelayed coking coke tower for pretreatment to obtain a light liquid containing a light component and water, a first heavy component and a first mechanical impurity; (2) introducing the light component into a delayed coking fractionating tower for fractionation to obtain naphtha and diesel oil; (3) returning the first heavy component and the first mechanical impurity as quenching oil to the coke tower top of the delayed coking device. The method has the advantages of high recovery rate and low cost, and can achieve the purpose of green recovery.

The invention relates to a device for disposing solid blockages in a natural gas hydrate slurry pipeline. The device comprises a first decomposition bin for heating and decomposing the blockages intonatural gas, second decomposition bins for receiving the natural gas decomposed by the first decomposition bin, a heating bin for heating the first decomposition bin, a first sensor and a second sensor, wherein the first sensor and the second sensor are used for sensing the position of a pipe cleaner moving in a natural gas pipeline; the first decomposition bin is connected with a blockage feedingpipeline which communicates with or does not communicate with a natural gas pipeline, and pipeline blocking plates capable of moving in the radial direction to close or open the natural gas pipelineare further arranged; the upper ends of the second decomposition bins are connected with a natural gas discharging pipeline which communicates with or does not communicate with the natural gas pipeline; and a cutting device for crushing the blockages is mounted on the wall of the natural gas pipeline. According to the device, after being crushed, the blockages in the natural gas pipeline are decomposed into the natural gas in a heating manner and then is discharged into the natural gas pipeline again, so that the function of converting the blockages into the natural gas underground in the natural gas transportation process can be realized.

The invention discloses an underground nuclear power plant having a low-and-intermediate-level radioactive waste disposal site. The underground nuclear power plant comprises a nuclear island arranged in an underground cavern group of a nuclear island of a mountain and a conventional island arranged on a ground platform at the outer side of the mountain. The nuclear island consists of a reactor workshop arranged at the center, a nuclear fuel workshop, a safety workshop, an electrical workshop, and a nuclear auxiliary workshop, wherein the nuclear fuel workshop, the safety workshop, the electrical workshop, and the nuclear auxiliary workshop encircle the reactor workshop. And the nuclear island also includes a low-and-intermediate-level radioactive waste disposal site arranged in the underground cavern group of the nuclear island of the mountain; and the low-and-intermediate-level radioactive waste disposal site is communicated with the nuclear auxiliary workshop of the nuclear island by a waste transport tunnel. According to the invention, on the basis of combination of characteristics of the underground nuclear power plant, the processing requirement of the low-and-intermediate-level radioactive waste can be met, the closed circulation of fuels can be realized, and the radioactive contamination possibly occurring during the fuel cycle process can be reduced; and the unified planning and building of the nuclear power plant and the disposal site can be realized and costs are saved.

The invention discloses a forming process of petroleum coke fine powder coke. The forming process comprises the following steps: taking fine powder coke which is screened from raw materials and has the moisture content of less than 10wt% as a forming raw material; biomass waste oil obtained by simply refining kitchen waste oil is adopted as a forming agent; mixing the fine coke powder with the biomass waste oil; after uniformly mixing, carrying out normal-temperature extrusion forming on the mixture through an extrusion forming machine to obtain columnar granules with the diameter of 2-15mm and the length of 5-15mm; the formed granules are placed in a sintering furnace to be dried and sintered, the sintering finishing temperature is 200-300 DEG C, the heating rate is 20-30 DEG C/min, and high-temperature heat preservation is conducted for 0.5-1 h; mixing the molded granules subjected to heating treatment into the screened petroleum coke granules, and carrying out a petroleum coke calcining process; and finally calcining to obtain finished product particles. The casting yield of the petroleum coke is increased, the production quality of the anode is guaranteed, and the problem that the anode raw material formula is limited by the fine coke powder amount is solved.