Sampling device, sampling method and application for measuring solubility of metal in molten salt
A solubility measurement and sampling device technology, applied in sampling devices, measuring devices, sampling, etc., can solve the problems of large measurement errors and cumbersome operations, and achieve the effects of low cost, reduced interference, improved success rate and portability
Active Publication Date: 2020-09-15
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology
[0007] Therefore, the technical problem to be solved by the present invention is to provide a solubility measurement device for metals in molten salts based on the static equilibrium method, and at the same time provide a method for sampling molten salt solutes at high temperatures to achieve dynamic sampling to overcome the traditional solubility The cumbersome operation of the measuring device, large measurement error and other disadvantages
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[0036]The present invention will be described in further detail below in conjunction with the accompanying drawings, the purpose of which is only to better understand the content of the present invention.
[0037] Such as figure 1 As shown in the device diagram, the solubility measurement sampling device of the present invention includes: computer 10, refractory material crucible cover 2 with flange interface, flange head 3 with holes (stainless steel material), refractory crucible 1, gas circulation pump 11, well type heating device9. Wherein: well type heating device 9 is connected with computer 10 . The thermocouple 4 is hermetically fixed on the flange head 3 and connected with the computer 10 at the same time. The protective gas inlet pipe 5 and the protective gas outlet pipe 6 are hermetically fixed on the flange head 3 and connected with the gas circulation pump 11 at the same time. The refractory crucible 1 is placed in a refractory crucible sleeve 2 with a flange i...
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The invention discloses a solubility testing and sampling device of metal, flammable in the air, in melting salt. The solubility testing and sampling device comprises a computer, a fire-resistant crucible sleeve with a flange connector, a porous stainless flange sealing head, a fire-resistant crucible, a gas circulation pump and a well type heating device, wherein the well type heating device is connected with the computer; a thermocouple is fixed at the flange sealing head in a sealed way, and is connected with the computer at the same time; a protection gas inlet pipe and a protection gas outlet pipe are fixed onto the flange sealing head in the sealed way, and are connected with the gas circulation pump at the same time; the fire-resistant crucible is put in the fire-resistant materialcrucible sleeve with the flange connector; a fire-resistant material sampling pipe is clamped and fixed onto the porous stainless steel flange sealing head by sleeving; meanwhile, the upper part of the fire-resistant material sampling pipe is connected with an air extraction needle tube; the air extraction needle tube is used for generating negative pressure to realize the sampling. The device provided by the invention can realize the continuous dynamic sampling at different temperatures; meanwhile, the sampling success rate and precision under the high-temperature condition are improved; thedefects of operation complexity, great measuring errors and the like of the solubility measurement by a typical static balance method are overcome.
Description
technical field [0001] The invention relates to a sampling device for measuring the solubility of flammable metals in molten salts in the air, which is mainly used for dynamic sampling of solubility tests of liquid metals in high-temperature molten salts and metal solubility analysis. Background technique [0002] It has been known for a long time that metals can dissolve in molten salts. When the metal dissolves in the molten salt, a "foggy" colloidal solution is generated, so the solution of the metal in the molten salt is called "metal fog" or "melt". From a practical point of view, it is also of great significance to study the solubility of metals in molten salts and its dissolution mechanism. Because in the molten salt electrolysis industry, the current efficiency during molten salt electrolysis has a lot to do with the dissolution of the metal deposited on the cathode in the electrolyte. Due to the convection in the electrolytic cell, the metal dissolved in the metal...
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IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1418
Inventor 孙泽蔡力伟路贵民宋兴福于建国
Owner EAST CHINA UNIV OF SCI & TECH