6results about How to "Fair price" patented technology

The application discloses an electrochemical granulation electrode deintercalation lithium extraction membrane stack electrolysis equipment, which comprises an electrolysis tank and an electrode assembly; the electrolysis tank comprises a first side plate, a piece of side plate rubber pad, a plurality of tank bodies, another piece of side plate rubber pad, a second side plate and a first tank body rubber pad, an anion membrane and a second tank body rubber pad arranged in sequence between two adjacent tank bodies; the tank bodies are divided into anode tanks and cathode tanks, the anode tanks and the cathode tanks are arranged alternately in an X direction from the first side plate to the second side plate, and the number of the anode tanks is equal to that of the cathode tanks; and an elastic porous pad is laid on the inner cavity bottom wall of the tank body. The electrolysis equipment can realize efficient extraction of lithium resources in salt lake brine, has the advantages of high lithium recovery rate and current efficiency, and is convenient to install, maintain and observe and monitor in the lithium extraction process.

This invention discloses a method for rapid quantitative analysis of methamphetamine based on portable near-infrared spectroscopy and PLS modeling, characterized by: (1) collecting near-infrared diffuse reflectance spectra of methamphetamine crystals and tablets using a portable near-infrared analyzer, and preprocessing the spectral data using the S-G method; (2) performing data analysis and modeling based on the PLS method to obtain a PLS regression model; (3) detecting the sample to be tested: collecting the near-infrared diffuse reflectance spectra of the sample to be tested, and then obtaining the methamphetamine content in the sample to be tested according to the model in step (2).

This invention relates to the field of metal surface treatment technology, and more particularly to an aluminum alloy with a surface loaded with bio-based antibacterial components and its preparation method. The aluminum alloy is prepared by the following steps: anodizing the treated aluminum alloy to obtain an aluminum alloy with a nanotube pore structure; immersing the obtained nanotube pore structure anodic aluminum layer in a silane coupling agent solution for activation treatment to obtain a surface-activated aluminum alloy; immersing the surface-activated aluminum alloy in an epoxy resin solution containing antibacterial components and allowing it to stand for 10–12 hours, then removing the aluminum alloy and curing it at 70–75°C for 2–3 hours to obtain the aluminum alloy. The aluminum alloy prepared by this invention simultaneously loads two antibacterial components, palmatine and magnolol, onto the anodic oxide film layer, which synergistically produce a better inhibitory effect on fungi and bacteria.

The application discloses a kind of dynamic wear monitoring and early warning device and method of coal winning machine support guiding system, which uses several sensors (dynamic wear monitoring device) arranged dispersedly to dynamically monitor the wear condition of key parts of coal winning machine support guiding system, makes full use of the different position structures of guiding shoe and smooth shoe, creates reasonable space by segmentation, optimizes sensor configuration point, and implements effective protection.In addition, the application also uses dynamic wear early warning device to centrally control the wear condition of key parts of coal winning machine support guiding system, which is beneficial to gather the four-point support of coal winning machine support guiding system, the different optimized sensor configuration points of structure dispersed guiding shoe and smooth shoe in the most shortcut, economical and reasonable way, and implement centralized control of each sensor configuration point, which is convenient to improve control accuracy, reduce measurement error and reduce cost.

The invention relates to a TPU / PVC (thermoplastic polyurethane / polyvinyl chloride) modified film as well as a preparation method and application thereof. The TPU / PVC modified film comprises the following components in parts by mass: 50-75 parts of polyether type TPU; 25 to 50 parts by mass of PVC resin; 20-35 parts by mass of a plasticizer; 1-2 parts by mass of a composite calcium-zinc stabilizer; 0.4 to 0.6 part by mass of an anti-ultraviolet light absorber; 0.2 to 0.5 part by mass of a composite antioxidant; 0-0.2 part by mass of a lubricant; in the preparation process, the PVC and the TPU are fused; a structure with TPU as a continuous phase and plasticized PVC as a dispersed phase is formed. The TPU / PVC modified space composite material is of a sandwich structure and comprises a surface layer, a bottom layer and a middle layer, wherein the surface layer and the bottom layer are TPU / PVC modified films, and the middle layer is space mesh cloth. Compared with the prior art, the TPU / PVC modified space composite material has the advantages of light smell, good flexibility, low temperature resistance, weather resistance and hydrolysis resistance.

The invention relates to an environment-friendly aluminum alloy cleaning agent, which comprises the following components in percentage by weight: 3.0 to 8.0 percent of biodegradable chelating agent, 8 to 16 percent of carbonate or bicarbonate, 2 to 6 percent of organic acid salt, 0.1 to 3.0 percent of anionic surfactant and the balance of water, the pH value of the cleaning agent is 7.5 to 9.5. The invention further claims to protect an aluminum alloy cleaning method using the environment-friendly aluminum alloy cleaning agent. The aluminum alloy cleaning method comprises the following steps: heating the cleaning agent; immersing the aluminum alloy product into the cleaning agent; keeping contact; and washing with clear water and drying. The aluminum alloy cleaning waste liquid treatment method comprises the steps that waste liquid is collected; adding an acidic regulator to regulate the pH value to 6.0-7.0; adding a flocculating agent and stirring; standing and precipitating; and separating supernate and sediment. The formula is flexible, and the waste liquid can be discharged after reaching the standard after being simply treated; and the device is particularly suitable for industrial application and small-batch cleaning operation of an aluminum alloy profile extrusion production line. The cleaning agent is high in cleaning efficiency, free of corrosion to aluminum alloy base materials and excellent in environmental protection performance.