CN2383052Y - Temperature detecting and sampling probe for melton iron - Google Patents

Abstract

The utility model relates to a temperature measuring and sampling device for molten metal, particularly a temperature measuring and sampling probe for molten iron, which is in a horizontal temperature measuring rod type. The utility model is composed of a side temperature thermocouple, a protective cover, a refractory insulator, a rod shape sample combining mould, a quartz glass tube, a molding sand separation block, a molten iron port, deoxidizer, a delay sealing plate, a temperature signal contact rod, a dipped paper sleeve, a connection sampling gun paper sleeve pipe, an inlet ring pad and a cap mouth ring, wherein, the quartz glass tube and the rod shape sample combining mould are horizontally arranged on the middle part of the paper sleeve. The utility model has the characteristics of quickness, simpleness, convenient operation, accurate sampling data, stabilization and reliability, and can reduce the cost of sampling and analyzing.

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; shaft-like sample matched moulds; quartz glass tube; the molding sand explant; the molten iron passway; deoxidizer; the time-delay mounting; temperature signal contact rod member; immerse paper sleeve; connect the sampling gun paper bushing; import ring pad; the molten iron thermometric sampling probe that cap mouth circle constitutes; it is characterized in that it is a horizontal side temperature bar sampling pattern; be provided with thermopair in the front center that immerses the cylindrical shape paper sleeve; there is protective cover the thermopair front; there is refractory thermal insulator the back; refractory thermal insulator crouches in the molding sand explant; a side is provided with the molten iron passway on the immersion paper sleeve; molten iron passway opening part is provided with the time-delay mounting; there is deoxidizer the mounting inboard; molding sand explant rear side has import ring pad; straight through mating with immersion paper sleeve internal diameter; on the import ring pad molten iron passage is arranged; molten iron passage upper end joins with the molten iron passway; its lower end is communicated with quartz glass tube; quartz glass tube is with shaft-like sample matched moulds outward; quartz glass tube and shaft-like sample matched moulds are horizontally set on the centre of paper sleeve; be cavity between shaft-like sample matched moulds and the paper sleeve; the leading section of quartz glass tube and shaft-like sample matched moulds is connected with import ring pad, and rearward end is connected with cap mouth circle.Cap mouth circle is back taper, and cap mouth circle docks with rear end molding sand explant, and immersing between paper sleeve rearward end and the molding sand explant has a space, is connected with sampling gun paper bushing coupling, and middle part, molding sand explant rear end is fixed with the contact rod member.

Characteristics of the present utility model and effect: this 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 shaft-like molten iron thermometric of thermometric sampling probe structure (see figure 1); it is a horizontal side temperature bar sampling pattern; be provided with thermopair 2 in the front center that immerses cylindrical shape paper sleeve 4; there is protective cover 1 thermopair 2 fronts; there is refractory thermal insulator 11 back; refractory thermal insulator crouches in molding sand explant 3; a side is provided with molten iron passway 12 on the immersion paper sleeve; molten iron passway opening part is provided with time-delay mounting 13; there is deoxidizer 14 the mounting inboard; molding sand explant rear side has import ring pad 5; straight through mating with immersion paper sleeve internal diameter; on the import ring pad molten iron passage 15 is arranged; molten iron passage upper end joins with the molten iron passway; its lower end is communicated with quartz glass tube 7; quartz glass tube is with shaft-like sample matched moulds 6 outward; quartz glass tube 7 and shaft-like sample matched moulds 6 are horizontally set on the centre of immersing paper sleeve; between shaft-like sample matched moulds and the immersion paper sleeve is cavity 16; quartz glass tube rear end and cap mouth circle 8 join; cap mouth circle is back taper, and cap mouth circle docks with rear end molding sand explant, and immersing between paper sleeve rearward end and the molding sand explant has a space; be connected with sampling gun paper bushing 9 couplings, middle part, molding sand explant rear end is fixed with contact rod member 10.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 being guided to contact rod member 10 places fixes, shaft-like shape sample is produced the chamber and is formed (see figure 1) by vitreosil glass tube 7 and shaft-like matched moulds 6, vitreosil glass tube 7 and shaft-like sample matched moulds 6 are horizontally set on the centre of paper sleeve, the quartz glass tube leading section is provided with import ring pad 5, rearward end has cap mouth circle 8, quartz glass tube 7 is not only played the positioning stablity effect, and play the guiding molten iron and accelerate heat release.Needs according to conditions such as user's molten iron temperatures, a kind of scheme is that the quartz glass tube periphery is provided with shaft-like sample matched moulds 6, between shaft-like sample matched moulds and the immersion paper sleeve is a cavity 16, another kind of scheme is that the quartz glass tube periphery is not provided with shaft-like sample matched moulds, it between quartz glass tube and the paper sleeve cavity, adopt the air cooling form to make the sample cooling, the probe of this structure is made the fast measuring temperature before the desulfurizing iron station, produce the shaft-like shape molten iron sample of diameter of phi 3-8mm, a long 30-80mm simultaneously, this shaft-like shape sample heat supply analyser of extracting is made analysis of sulfur content and is used.The external diameter that molten iron thermometric sampling probe immerses paper sleeve 14 is 60mm, and length is 400mm, quartz glass tube 7 horizontal positioned, and quartz glass tube is peripherally equipped with shaft-like sample matched moulds or two kinds of structures of shaft-like sample matched moulds is not housed.The external diameter that connects the sampling gun paper bushing is 48mm, and length is 800mm.

Claims (1)

1. one kind by the warm galvanic couple of side; protective cover; refractory thermal insulator; shaft-like sample matched moulds; quartz glass tube; the molding sand explant; the molten iron passway; deoxidizer; the time-delay mounting; temperature signal contact rod member; immerse paper sleeve; connect the sampling gun paper bushing; import ring pad; the molten iron thermometric sampling probe that cap mouth circle constitutes; it is characterized in that it is a horizontal side temperature bar sampling pattern; be provided with thermopair in the front center that immerses the cylindrical shape paper sleeve; there is protective cover the thermopair front; there is refractory thermal insulator the back; refractory thermal insulator crouches in the molding sand explant; a side is provided with the molten iron passway on the immersion paper sleeve; molten iron passway opening part is provided with the time-delay mounting; there is deoxidizer the mounting inboard; molding sand explant rear side has import ring pad; straight through mating with immersion paper sleeve internal diameter; on the import ring pad molten iron passage is arranged; molten iron passage upper end joins with the molten iron passway; its lower end is communicated with quartz glass tube; quartz glass tube is with shaft-like sample matched moulds outward; quartz glass tube and shaft-like sample matched moulds are horizontally set on the centre of paper sleeve; be cavity between shaft-like sample matched moulds and the paper sleeve; the leading section of quartz glass tube and shaft-like sample matched moulds is connected with import ring pad, and rearward end is connected with cap mouth circle.Cap mouth circle is back taper, and cap mouth circle docks with rear end molding sand explant, and immersing between paper sleeve rearward end and the molding sand explant has a space, is connected with sampling gun paper bushing coupling, and middle part, molding sand explant rear end is fixed with the contact rod member.

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