CN2383053Y - Temperature detecting and sampling probe for melten iron - Google Patents

Abstract

The utility model relates to a temperature measuring and sampling probe for molten iron, which is a disc composite type of a temperature measuring rod and is composed of a temperature measuring thermocouple, a protective cover, a circular disc sampling and preparing chamber, a circular disc mold, a rod-shaped mold, a quartz glass tube, a molding sand separation block, deoxidizer, a time delaying and sealing sheet, a connection point rod piece, an immersed paper sleeve cylinder and a connection sampling gun paper sleeve tube. The utility model has the advantages of short cooling and clotting time of molten iron, quick, simple and convenient analytical sample and accurate stable and reliable data acquisition and can also reduce sampling and analyzing cost.

Description

Molten iron thermometric sampling probe

The utility model relates to a kind of liquid metal thermometric sampler, especially a kind of molten iron thermometric sampling probe.

At present metallurgy industry practical molten iron sampler materials and be disc-shape, the polishing back is done multiple element component content analysis for spectroanalysis instrument and is used, because the disk sample is big and thick, required setting time is long, segregation takes place in each composition easily, make that certain component content value of difference differs bigger on the same sample, if only make a point analysis, then its result lacks representativeness again.Especially to the analysis of ultralow ((S)＜0.003%) sulfur content, after need analyzing the sample that drills through 3 diverse locations on the disk respectively, again all assay values are carried out the COMPREHENSIVE CALCULATING analysis, this has not only increased the analytical work amount, required time is long, and inaccurate, delayed STEELMAKING PRODUCTION rhythm, move smoothly and exactly to the operation of desulfurizing iron station and STEELMAKING PRODUCTION and bring difficulty.

Many disadvantages in view of the prior art existence, for adapting to the requirement that new technologies such as Molten Iron Pretreatment composite blowing are analysed sulphur content, especially after satisfying the dark desulfurization of winding-up ((S)＜0.002%),, developed a kind of molten iron thermometric sampling probe to needing accurately and rapidly that molten iron terminal point sulphur content is analysed.

The technical scheme of the utility model molten iron thermometric sampling probe:

A kind of by the warm galvanic couple of side; protective cover; refractory thermal insulator; the disk sample is produced the chamber; the disk matched moulds; shaft-like sample matched moulds; quartz glass tube; the molding sand explant; deoxidizer; the time-delay mounting; the contact rod member; immerse paper sleeve; connect the molten iron side temperature sampling probe that each element of sampling gun paper bushing constitutes; it is characterized in that it is the thermometric bar--coil compound sampling pattern; front center at cylindrical sleeve is provided with thermopair; there is protective cover the thermopair front; there is refractory thermal insulator the back; refractory thermal insulator crouches in the molding sand explant; homonymy is provided with two molten iron passwaies on the immersion paper sleeve; molten iron passway opening part is provided with the time-delay mounting; there is deoxidizer the mounting inboard; immersion paper sleeve inner chamber middle part is provided with the disk sample and produces the chamber; one end and molten iron passway join; the disk sample is produced the front side, chamber the disk matched moulds; between refractory thermal insulator and the disk matched moulds molding sand explant is arranged; the disk sample is produced the chamber rear side and is provided with the molding sand explant; with the quartz glass tube adjacency; quartz glass tube one end and another molten iron passway join; the quartz glass tube rear side is provided with shaft-like sample matched moulds; the disk sample is produced the chamber; disk matched moulds and shaft-like sample matched moulds; the parallel each other and axial vertical setting of quartz glass tube; immerse paper sleeve rearward end inboard and be provided with the contact rod member; contact rod member one end is fixed in the molding sand explant; between molding sand explant and the shaft-like sample matched moulds is cavity; molding sand explant leading section is fixedlyed connected with the immersion paper sleeve; have living space between molding sand explant side and the immersion paper sleeve, be connected with sampling gun paper bushing coupling.

Characteristics of the present utility model and effect: molten iron thermometric sampling probe is except that measuring molten iron temperature, also designed the structure of producing of shaft-like shape sample, can make molten iron cooled and solidified in the extremely short time, each composition segregation phenomena does not take place and equably disperse distribute, thereby the arbitrary thin piece of sample or granule all can be represented each component content level of sample integral body.During analytical sample, need not sample preparation again, shaft-like shape sample is rapped with hand hammer, get post-rift fritter grain, put into the crucible that analyser is got in sweat, can the sense analysis result about 30 seconds.Analysis to super-low sulfur can once be finished in the time about 1 minute, fast and convenient, processing ease, obtain data accurately, stable, reliable, can satisfy the requirement of production, can reduce the expense of sample analysis again.

Fig. 1 is a molten iron thermometric sampling probe structure cut-away view.

Be described with reference to the accompanying drawings the utility model, provide following embodiment.

Fig. 1 discloses the molten iron thermometric sampling probe structure (see figure 1) of the compound sampling pattern of thermometric bar one dish; it is the compound sampling pattern of side temperature bar one dish; front center at cylindrical sleeve is provided with thermopair 2; there is protective cover 1 the thermopair front; there is refractory thermal insulator 11 back; refractory thermal insulator crouches in molding sand explant 3; homonymy is provided with two molten iron passwaies 14 on the immersion paper sleeve 4; molten iron passway opening part is provided with time-delay mounting 13; there is deoxidizer 12 the mounting inboard; immersion paper sleeve inner chamber middle part is provided with the disk sample and produces chamber 6; one end and molten iron passway join; the disk sample is produced the front side, chamber disk matched moulds 5; between refractory thermal insulator and the disk matched moulds molding sand explant 3 is arranged; the disk sample is produced the chamber rear side and is provided with the molding sand explant; with quartz glass tube 7 adjacency; quartz glass tube 7 one ends and another molten iron passway join; the quartz glass tube rear side is provided with shaft-like sample matched moulds 8; the disk sample is produced chamber 6; disk matched moulds 5 and shaft-like sample matched moulds 8; the parallel each other and axial vertical setting of quartz glass tube 7; immerse paper sleeve rearward end inboard and be provided with contact rod member 10; contact rod member one end is fixed in the tip type sand separation piece; between molding sand explant and the shaft-like sample matched moulds is cavity 15; molding sand explant leading section is fixedlyed connected with the immersion paper sleeve; have living space between molding sand explant side and the immersion paper sleeve, be connected with sampling gun paper bushing 9 couplings.All make firm by ramming in paper sleeve at molding sand explant position.Thermopair 2 and refractory thermal insulator 11, eyes porcelain tube and signal wire assembling are one one and can be loaded on probe end that end external application protective cover 1 is built, and promptly protects thermocouple head, when inserting molten iron, plays break and time-lag action again; With conventional method signal wire is guided to contact rod member 10 places and fix, it is a cavity that the disk sample is produced chamber 6, is surrounded by disk matched moulds 5, and molten iron pours into the back and is frozen into sample at this, forms smooth outside surface.Shaft-like sample is produced the chamber and is made up of vitreosil glass tube 7 and shaft-like sample matched moulds 8, and molten iron pours in the quartz glass tube and solidifies, and forms the sample of smooth outer surface.Needs according to conditions such as user's molten iron temperatures; a kind of scheme is the rear side of the quartz glass tube 7 shaft-like sample matched moulds 8 of packing into; another kind of scheme is the shaft-like sample matched moulds 8 of not packing into; the quartz glass tube rear side is provided with a cavity 15; adopt the air cooling form to make the sample cooling; molding sand explant 3 is provided with more than 2 and plays separation; the fixedly effect of thermocouple part and sampling hut; skin is provided with and immerses paper sleeve 4; even thermopair 2; molding sand explant 3; disk matched moulds 5; the disk sample is produced chamber 6; quartz glass tube 7; shaft-like sample matched moulds 8 is assembled in the same immersion paper sleeve 4; form an integral body; in order to prevent the interference of external factor to sample constituents; place, molten iron passway in the sampling hut is provided with time-delay mounting 13, and deoxidizer 12 things such as grade are filled in the interior survey of time-delay mounting, before probe uses; mounting protection molten iron passway; prevent that foreign material from entering in the sampling hut, in use, the control channel mouth is opened the time; when the regulation sampling spot was popped one's head in protection, molten iron just poured into the sampling hut.The molten iron thermometric sampling probe that assembles like this as long as install on user's the thermometric sampling gun, is once finished two kinds of functions of thermometric and sampling.The probe of this structure is made the fast measuring temperature before the desulfurizing iron station, obtain shaft-like shape and the discoidal molten iron sample of diameter of phi 30-70mm, thick 4-10mm of diameter of phi 3-8mm, a long 30-80mm simultaneously, the disk sample is done multiple constituent analysis for spectroanalysis instrument and is used, and the shaft-like shape sample heat supply analyser of extracting is made analysis of sulfur content and used.The external diameter that molten iron thermometric sampling probe immerses paper sleeve is 40mm, and length is 300mm, quartz glass tube and axially vertical placement, and quartz glass tube is peripherally equipped with shaft-like sample matched moulds or two kinds of schemes of shaft-like sample matched moulds is not housed.The external diameter that connects the sampling gun paper bushing is 28mm, and length is 600mm.

Claims (1)

1. one kind by the warm galvanic couple of side; protective cover; refractory thermal insulator; the disk sample is produced the chamber; the disk matched moulds; shaft-like sample matched moulds; quartz glass tube; the molding sand explant; deoxidizer; the time-delay mounting; the contact rod member; immerse paper sleeve; connect the molten iron side temperature sampling probe that each element of sampling gun paper bushing constitutes; it is characterized in that it is the thermometric bar--coil compound sampling pattern; front center at cylindrical sleeve is provided with thermopair; there is protective cover the thermopair front; there is refractory thermal insulator the back; refractory thermal insulator crouches in the molding sand explant; homonymy is provided with two molten iron passwaies on the immersion paper sleeve; molten iron passway opening part is provided with the time-delay mounting; there is deoxidizer the mounting inboard; immersion paper sleeve inner chamber middle part is provided with the disk sample and produces the chamber; one end and molten iron passway join; the disk sample is produced the front side, chamber the disk matched moulds; between refractory thermal insulator and the disk matched moulds molding sand explant is arranged; the disk sample is produced the chamber rear side and is provided with the molding sand explant; with the quartz glass tube adjacency; quartz glass tube one end and another molten iron passway join; the quartz glass tube rear side is provided with shaft-like sample matched moulds; the disk sample is produced the chamber; disk matched moulds and shaft-like sample matched moulds; the parallel each other and axial vertical setting of quartz glass tube; immerse paper sleeve rearward end inboard and be provided with the contact rod member; contact rod member one end is fixed in the molding sand explant; between molding sand explant and the shaft-like sample matched moulds is cavity; molding sand explant leading section is fixedlyed connected with the immersion paper sleeve; have living space between molding sand explant side and the immersion paper sleeve, be connected with sampling gun paper bushing coupling.

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