TW205071B - A molten steel liquid level detection and control system for the converter steel production and its application principle on the slagless steel production - Google Patents

Abstract

A molten steel liquid level detection and control system for the converter steel production and its application principle on the slagless steel production, which comprise: a slag thickness detection instrument; and a distance measuring device; by using the measured slag thickness from the slag thickness detection instrument in combination with the distance measuring device to obtain the distance between the molten steel liquid-slag interface and the steel production outlet, and during the steel production process using the distance as detection or control values to determine the timing of stopping the molten steel outflow.

Description

A6 B6 V. Description of the invention (/) This creative pseudo 11 is a kind of two-position detection and lining system for net liquid when barium is released from the converter and its application in the slag-free net! More specifically, .. especially refers to a method that can accurately measure the distance between it ’s Ait # and 出 甲 _p in the process of converter outgoing to control the converter ’s shovel. Xiao ( MIS 'Position j, tide detection and control system and its principle of slag-free out of the box ^ · ..〆. —_______… ........................ ........................-Pressing, the ir $ will certainly be formed during the reprisal process; and when the liquid steel is sold from the transfer to the market note ; When selling barrels, a large amount of slag will be brought into it, and there will still be a small amount of slag brought into the J1L mold until the pin liquid is poured, so the slag is in the barium -... ..................... '' --------------------------- --------- Subsequent operations will cause inclusions, etc. defects, so pass m 都 # hope that when the slag is discharged from the transfer barium into the barium barrel, the less slag. The better, or It is best to do ", .............................., * * 'Qiang. Gold. No slag out of the net. As for the converter out of poor time, the museum il! _Manufacture technology jg (package! There are slag and no slag out _ sales), in recent years, this problem has been widely regarded in the slag-free production, production methods have many methods Among them, the main regular stems use the method of Sida agba 11 (S1 agba 11) and magnetic i; go; the slag ball method mainly uses the evidence that the specific gravity is less than the bait liquid and larger than the slag, so that the slag ball exists in the slag and europium Between the liquids, when the nets are finished when the nets flow out, the slag ball is about to block the converter outlet, and to avoid the purpose of preventing a large amount of molten slag from flowing into the rim barrel; also, although the slag ball method can be used In order to prevent a large amount of molten slag from flowing into the Shengwang barrel, but due to the slag....... The time to live at the outlet is difficult to grasp, and the sales process cannot be straightened ................................--—— '** · * 化 ~ 151 ^ Amount control; magnetic method is equipped with a coil at the outlet of the converter, using the magnetic permeability of the slag and the pin liquid (magnetic resistance>, the magnetic resistance becomes larger when the slag flows out, the electrical parameters of the slag circuit, Using this as the ja number, it can be detected that the slag has begun to log out, and then it is determined that the indium can be stopped when it is out of reach, reaching the armor 4 (210X297 public) Α6 Β6 2〇5〇 ^^ Fifth, the invention description (what) free a lot The purpose of the slag flowing into the barium barrel; however, changes in electrical parameters Have-----------~ ·.· ---·---. - ........ ................. ......... Party. Melt can be straight. Signal output, @ 此 电 多 —learned completely unsalable, in addition, due to local or accidental reasons (such as vortex effects, etc.), there is a ^ > · — . —— · ------------ " ~ · ------------------------------ ----- · — ~ '., — -----------------— When the slag flows out, an error signal will appear, making it difficult to maintain a pure network. According to the above purpose, the main joy of the present invention lies in the late stage of sales, the thickness value of the molten slag is measured by the thickness testing device of the molten slag, and the ray distance measuring device is one ... *-», _„ 丨 丨 丨-.......— " · ι · ι, ^

Ji-M · Measure any selected point on the slag surface, and calculate the base value of the measured slag thickness γ- 利 -Miljt to calculate the distance between the interface of the slag and the outlet, ii | f3 @; off value S can be selected at the most appropriate time to stop the barium, and can make i- ---- ...... .. ·-', 1r |-—-This profile is the best ® .. Under the ^ piece of the jth utilization rate, it is possible to get out of the net without slag, and make one · _____ 一. 一一 一 ^^ ..------------------------ --- ------------------ --------------------. Complete automation of a vortex stalk By. In order to make your review committee have a more detailed and clear understanding of the purpose, efficacy and structure of the present invention, Η gives a feasible example and a circular description as follows: The first figure shows a feasible embodiment of the present invention Schematic diagram of the device. Second_ Shown is a state diagram of the use of the slag thickness testing device of a feasible embodiment of the present invention. The third figure shows the state of use of the ray distance measuring device according to a feasible embodiment of the present invention. First of all, please refer to the schematic diagram of one of the pseudo-bumps in the first picture; from the figure ... —— ~ · -— · ————. , A ray distance measuring device 2 and a computer device 3 and other main components; among them, the thickness of the slag ------------------- set 1, mainly including a group of slag testing institutions 11 (Before the bait ^ —1 ~ " ―—- -----—— ~ ——. —___ 转 垆) '; its pseudo n is to get TOgrfni A 4 (210X297 public not) ... ........................... i ........... install ... .......................... Order ...: (............, line (please first Read the precautions on the back and fill in this page) * Printed by the Central Bureau of Standards of the Ministry of Economic Affairs 78. 8. 3,000 2 〇5〇 *? 1 A6 B6 grams, invention description (彡) Can be raised and lowered at a constant speed, and can be deepened in time The slag 31 and nr ^ J-pin fluid 32 located in the converter 3; a set of ^ heads 12 are turned on to determine the appropriateness of the contact of the probe 12 (such as voltage value, current value or resistance value-etc.) ); M pseudo contains ____ 'two. — .. one.. One, -------------- f _ _ ll]), which can be launched Line supply measurement of slag 31 bits ~ ^ variable 1 distance, distance; computer equipped with "J_3 pseudo-available-physical melting measurement and slag measurement 3 measured by the ray distance measuring device 2 1 surface position change value h and counted You can get the net liquid 32 and the melt ... 一 r _, '• S-1-' " '' * * Ύ ~ ΙΒ Τ '' '" ......_—_ " Intersection of slag 31 The interface is up to. --- ............ 一 _ Chuan_ 丨 丨 丨 ___ UIII _ JI—— ig digging sound, 芊 ffJl- also ΠΠ is latched, the inventor of this case, Dr. Chen Hongbin The invention's technology is disclosed in detail in the patent number No. 3937 of the invention (the attachment shows the copy of the certificate of the dish and the announcement material). It is a second embodiment of the invention. The use status of the slag thickness test device is shown in the circle; (as shown by the circle, it can be seen that the turn 3 is sold .. -...------ + '·· ___ · * «that is the beginning of the net limb 3 2 From the lower outlet of the rhythm 3 3 flow, with the outflow of the bungalow liquid 3 2, the slag 3 1 and the pin liquid 3 mesh liquid level also continue to drop, when the slag 3 1 and the copper liquid 3 2 ___- ^ —- Z__. ______________________ 'Intersection A' after falling a distance (or may be in the window: frozen: dew knot swim into the Γ, The thickness of the slag so that the test of a test apparatus 12 automatically

(Please read the precautions on the back before filling out this page) • Install. • Order. ... Line. Printed by the Central Standards Bureau of the Ministry of Economic Affairs + Feng ^ furnace 3, analyzed by the tester 1 彡 gjf -tjf Huishui. Computer 4 calculates to obtain a true slag value, gas | named Jiao .... Lu -......- —-----------------— ― 正 —- iri5L sale: Bu "). -& Please refer to the third figure, which is shown as the use status of the ray distance measuring device of a feasible real rotation example of the present invention; 肀 4 (210X297 Gongai) 78. 8. 3,000 V. Description of the invention (W) A6B6 is installed and set with rays. 2. Continuous JIL is set: any selected point on the A in the basket (such as J1, Μ 4 can automatically calculate the d value according to the following formula: 1 where d is copper knot 32 and slag 31 Old, the distance from the interface A 'to the exit 33, _3l mm—hm is the distance between the ray distance meter 2 1 measuring point 0 and the reference plane B ——————, unit π π _ L a = Ο Μ is the distance measured by _ ^ 1 ranging, the unit nsn is clamped by the melt it. Gu 〇 is the distance of 30? Base &surface; the unit is ππ S measured by Pei 1 31 thickness, unit mm During the identification process, the slag jg surface A gradually decreases with the rim liquid, this --------— '· ~ --- i! I.. Υ · «. 1 ---- -------- The length l of the mm line is wide and the surface λ, zxJhM ^ m is too small and moves down to μ, and at this time (1) where TL rt is added, this gradually increases * " 1111 11 1 " ~ Τ-AZ1— »·· — · is L > except for the other. Each a does not change, and d does not decrease newly. Violate regulations

) Where L d S I. is positive (please read the precautions on the back before filling in this page) • Pack · · Order · Printed by the Central Standards Bureau of the Ministry of Economic Affairs

NyS actually slags the slag on the table and the observation point 0 of the vertical money @, the original head 丨 | Bu. Can also use Jia J can be used; the above slag thickness, the action of entering the working position s is obtained by a line distance measuring device g Obtained __15 ^ system, can be in the command m-itii line of electric m 4. The specified value of d must be in accordance with the requirements of _ 胃 车 专 g 3 in terms of clarity, before the molybdenum ^ _ΙίΐΑ ^ · 1 4 A 4 (210X297 male) 78 · 8 · 3,000: line ·

pL

Printed by the Central Bureau of Standards of the Ministry of Economic Affairs V. Description of Invention (jr) In addition, when the formula d = 0 (that is, ds = 0 is the control value), the sales will be stopped, and P will obtain the highest H3 2 utilization rate, but , Due to the existence of Liao vortex in g, a small amount of molten slag flows out of this waste; when it is required to completely __------ level reservoir 1 is poor, the amount needs to be determined based on experience, ~~,-,. M according to The control value is based on the experience 1 data. • The slag ε in the sales barrel must be measured after sales, and the empirical relationship between _ ^ & s (in r ..... —— ** — — '-+' In the production, the ds value can be selected and input into the computer according to the requirement of 32¾¾ degrees of barium water. 4) ○ According to the above embodiment, the invention has the following advantages: —. It can be accurately stopped from 1 to the most reasonable Molybdenum timing: The present invention assumes S · · · ——1 · * I III--The ray sizing device 2 continuously counteracts the molten slag of dysprosium cymbals ~ -------- ~ ___________ ---- 31¾Continue the detection and pass the detected value to j | l_g_g to obtain an appropriate one. Stop the timing of elimination and make it possible to control the ______—- 一一 _ ______________- ^^ slag 31 outflow according to the predetermined value iiirm " " water utilization rate, or to achieve no slag "&Quot; ____ 出 铜 ^ 2. The automation of the control process, the effect is stable, and it is not subject to the operation skills of the people .... I .———- ^^ '__ *' __ — The county can save manpower and sell The process is one high ~ — one " 〆Winter-35. §Mobility has obstacles to the safety and health of workers. In summary, the present invention measures the thickness of the slag by means of the slag thickness testing device ...................-'·. · ................................ _ M Degree, continuously obtained by the ray distance measuring device. The interface between the wrong liquid and the slag to the sales--.......................................... ....... The distance between the mouths is determined by the decision. When it is appropriate to stop out of the mile 1._ Violation of slag-free sales or control of Mmjp outflow stirrup> jh effect, and can be fully automated to operate barium Wait ...------------------------------ (Please read the notes on the back before filling this page) . Installed. • Ordered.. Line. A 4 (210X297 male and female)

(PP 78. 8. 3,000

Binding green armor 4 (210X297 public love)

Claims (1)

205071 The Six Economic Departments-Central m Zhun M Yin 78. 8. 3.00U Α7 Β7 C7 D7 Patent application profile 1. A system for detecting and controlling the position of the liquid level of the mesh when the converter is tapping and its application principle in slag-free sales, where the system contains at least ; A slag thickness tester; and a distance measuring device, and other components; and by using the slag thickness value measured by the slag thickness tester and working with the distance measuring device, the barium liquid level and the slag are obtained and The distance of the outlet, and use this distance as the measurement or control quantity during the sales process to decide the timing of stopping the sales. -丨 · ~ — · 2 .According to the description and control system of the liquid level of the pin when it is sold as described in item 1 of the patent application scope and its application principle in the slag-free network; where, the thickness of the slag The tester and the distance-measuring device can be integrated with a computer device, and the computer device can be connected to the control circuit of the barium barrel to achieve the effect of automatic slag-free europium control. 3. According to the description of item 1 of the patent application scope, the barium liquid level position detection and control system during barium transfer and its application principle in slag-free barium extraction; wherein the slag thickness tester includes at least one set Slag testing machine trench < can be moved into the rotor before exiting the network): a set of probes, which are pseudo-located at the end of the slag testing mechanism and can be raised and lowered at the same speed, and can be deeply penetrated into the slag in the converter in time And the lower part of the liquid sales; a set of testers, pseudo-conducted with the aforementioned probe to determine the waitability of the medium contacted by the probe (such as voltage value, current value or resistance value, etc.) in a timely manner. 4. According to the description of item 1 of the scope of the patent application, the pin liquid level position detection and control system and its application principle in slag-free sales are described; wherein the ray distance measuring device contains at least A4 (210X297 public) 7 7 7 7 AB c D 205071 Liu's patent application Fanyuan 1 rangefinder, this rangefinder can emit radiation for measuring the distance from the reference plane to the position of the molten slag 31 changes. 5. According to the description and control of the dysprosium liquid level during converter sales as described in item 2 of the patent application scope and its application principles in slag-free sales; where the computer device is pseudo-available for slag thickness testing The thickness value of the molten slag measured by the device and the change of the surface position of the slag measured by the ray distance measuring device are calculated and the distance from the interface between the molten steel and the slag to the outlet of the mesh can be obtained. {Please read the precautions on the back before filling in this page) • Installed • • Played • • Fate • Printed by the Central Bureau of Standards of the Ministry of Economic Affairs f 4 (210X297 Koji) p / 〇 78. 8. 3,000