Patents
Literature
Patsnap Copilot is an intelligent assistant for R&D personnel, combined with Patent DNA, to facilitate innovative research.
Patsnap Copilot

699results about How to "Big investment" patented technology

Low temperature methanol washing integrated Claus sulfur recovery system and process

The invention relates to a reclaiming system and a process for low-temperature methanol washing integrated Claus sulfur of coal gas and natural gas. The system is additionally provided with a Claus tail gas washing tower and uses sulfur-free methanol saturated by CO2 from a CO2 product tower as a washing agent, and the washed liquid returns to an H2S concentrating tower; through combination of heating, gas stripping and pressure adjustment, concentration of H2S in acid gas washed by methanol is adjusted flexibly; at the same time, the system is additionally provided with a tail gas pre-heater before hydrogenation reaction to compensate heat loss of a hydrogenation reaction system. The process mainly comprises the following steps: removing H2S-CO2 gas, condensing H2S, reclaiming Claus sulfur, hydrogenising and reducing the gas, selectively absorbing and desulfurizing saturated cold methanol. The process has the advantages that the process can efficiently, flexibly, safely and energy-conservatively treat carbonyl gas with different pressures, temperatures, water content and sulfur concentration; and total sulfur reclamation ratio can reach more than 99.9 percent. The concentration of the H2S in emptied tail gas is below 25 mg/Nm3, so the H2S gas can meet the requirement of environmental protection, and can be exhausted directly without being burnt.
Owner:HUALU ENG & TECH

Measuring device and measuring method for large three-dimensional morphology based on inertial navigation technology

The invention relates to a measuring device and a measuring method for large three-dimensional morphology based on an inertial navigation technology. The measuring device comprises a laser tracker, a portable handheld measuring terminal and a computer, wherein the portable handheld measuring terminal comprises a handheld support, a high-precision CCD (charge coupled device) camera is fixed at the upper part of the handheld support, an image processing and communication unit is positioned in the middle of the handheld support, a semiconductor laser projector is clamped at the lower part of the handheld support, an inertia navigation unit is clamped at the upper part of the handheld support, and the computer is connected with the communication unit and the laser tracker. According to the invention, the inertia navigation technology, the single-point tracking measuring technology of the laser tracker and the linear laser scanning technology are combined, the system can realize three-dimensional measurement in a measuring space which is 80m maximally, rigorous logicality is realized, the engineering is simple to realize, the precision is reliable, quick and high-precision acquisition of three-dimensional point cloud data of oversized workpieces can be realized without high cost on the basis of the existing laser tracker, and the measuring device and the measuring method have good economical usability.
Owner:XI AN JIAOTONG UNIV

Sulphuric acid tail-gas deep desulfurization method

The invention discloses a deep desulfurization method of sulfate acid tail gas. The method additionally arranges a desulfurization tower behind a second adsorption tower of a sulphuric acid device; after the waste gas discharged from the second adsorption tower enters the desulfurization tower, an ammoniation absorbent is used for adsorbing SO2 in the waste gas to generate ammonium sulfite; the tail gas after the desulfurization passes through a demisting layer in the tower to eliminate acid fog; the purified tail gas is discharged through a chimney at high altitude; the ammonium sulfite in the absorbent is aerated and oxidized to be ammonium sulfate solution at the bottom of the tower; and after the concentration of circulation liquid ammonium sulfate meets the requirement, the circulation liquid ammonium sulfate is sent to a follow-up process to be processed and used. The deep desulfurization method of sulfate acid tail gas can cause the concentration of the SO2 in the tail gas to be lower than 100mg/m<3> in a standard state, greatly reduces the emission of the SO2 in the tail gas, is beneficial to the improvement of the atmospheric environment quality, meets the construction principles of energy conservation, emission reduction and sustainable development and has good social benefits; in addition, the deep desulfurization method can increase the recovery amount of the ammonium sulfate, and has certain economic benefits.
Owner:GUIZHOU KAILIN GRP CO LTD

Emergency movable battery replacing vehicle and battery replacing method thereof

ActiveCN102358266AFully automatic intelligent emergency battery replacement serviceHigh degree of automationElectric propulsion mountingItem transportation vehiclesElectricityTraction system
The invention relates to an integrally distributing and replacing emergency movable battery replacing vehicle and a battery replacing method thereof, which are used for solving the problem that an electric passenger car can not reach a special concentrated charging power station for replacing batteries due to stoppage (no power of the battery, fault and emergency use). The emergency movable battery replacing vehicle comprises a battery replacing car. A battery storing frame is arranged on the upper front portion of the battery replacing car and adjacent to a trapezoid stand. A traction systemis further arranged on the trapezoid stand. A folded slope is matched with a slope face of the trapezoid stand, the trapezoid stand is hinged with the folded slope, the height of the folded slope ensures that when the folded slope is arranged on the ground, the folded slope is connected with the lower edge of the slope face of the trapezoid stand, and the battery storing frame, the trapezoid stand and the folded slope are distributed horizontally. A battery replacing robot is arranged in front of the trapezoid stand and the battery storing frame and matched with the battery storing frame and the trapezoid stand, and the traction system and the battery replacing robot are both connected with a control system.
Owner:ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER COMPANY +1

Long-acting fertilizer specially used for dry-farming sweet potatoes and preparation method for long-acting fertilizer

The invention relates to a long-acting fertilizer specially used for dry-farming sweet potatoes and a preparation method for the long-acting fertilizer. The fertilizer is granular and comprises three layers of structures, namely a fertilizer kernel, a wrapping film coating layer and a water-retaining agent coating layer in sequence from inside to outside. The kernel of the long-acting fertilizer specially used for the dry-farming sweet potatoes contains effective components such as a nitrogen fertilizer, a phosphorus fertilizer, a potassic fertilizer and a composite micro fertilizer which are specially suitable for the sweet potatoes; the wrapping film coating layer controls the speed of water entering a film and controls and regulates release of nutrition; the water-retaining agent coating layer can effectively retain water in soil and rainwater; lateral seepage runoff and water evaporation are alleviated, and front and middle-stage growth of the sweet potatoes is guaranteed. The preparation method for the fertilizer is implemented through one-time spraying; the technically occupied space is small, the equipment investment is small, the preparation process is simple and the energy consumption is low; the wrapping film material is low in cost, so that the price of the fertilizer is greatly reduced.
Owner:QINGDAO AGRI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products