CN116793093A - Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper - Google Patents
Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper Download PDFInfo
- Publication number
- CN116793093A CN116793093A CN202310745202.8A CN202310745202A CN116793093A CN 116793093 A CN116793093 A CN 116793093A CN 202310745202 A CN202310745202 A CN 202310745202A CN 116793093 A CN116793093 A CN 116793093A
- Authority
- CN
- China
- Prior art keywords
- early warning
- position monitoring
- gun
- lance
- smelting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 98
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 81
- 239000010949 copper Substances 0.000 title claims abstract description 81
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 80
- 238000003723 Smelting Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000007921 spray Substances 0.000 claims abstract description 65
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 63
- 239000010439 graphite Substances 0.000 claims abstract description 63
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 62
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 37
- 239000010959 steel Substances 0.000 claims abstract description 37
- 230000002159 abnormal effect Effects 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims description 12
- 238000007664 blowing Methods 0.000 claims description 11
- 239000000463 material Substances 0.000 claims description 10
- 238000013500 data storage Methods 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 7
- 239000010935 stainless steel Substances 0.000 claims description 7
- 239000002893 slag Substances 0.000 description 26
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910052742 iron Inorganic materials 0.000 description 6
- 229910004298 SiO 2 Inorganic materials 0.000 description 5
- 238000004364 calculation method Methods 0.000 description 5
- 238000001514 detection method Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000004020 conductor Substances 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 2
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005279 austempering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/16—Introducing a fluid jet or current into the charge
- F27D2003/168—Introducing a fluid jet or current into the charge through a lance
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a lance position monitoring and early warning method and a lance position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool, belonging to lance control and equipment operation rate of top-blown molten pool smelting. And (3) embedding graphite electrodes at the inner side of the side wall of the top-blown smelting furnace and at the position of the copper matte layer region, connecting a power supply positive electrode wire in the gun position monitoring and early warning instrument with a steel rod on the graphite electrodes, connecting a power supply negative electrode wire in the gun position monitoring and early warning instrument with an originally used spray gun to form a closed loop, measuring resistance through the gun position monitoring and early warning instrument, and warning the gun position monitoring and early warning instrument when measured resistance data are abnormal. The system forms on-line monitoring and early warning of the gun position of molten pool molten copper smelting of the submerged spray gun, accurately controls the gun position, prolongs the service life of the spray gun, improves the equipment operation rate and finally strengthens smelting.
Description
Technical Field
The invention relates to a lance position monitoring and early warning method and a lance position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool, and relates to lance control and equipment operation rate for top-blown molten pool smelting.
Background
The spray gun top-blown smelting technology is a molten pool smelting technology with high smelting strength and high smelting efficiency. The top-blown smelting belongs to the immersion blowing, belongs to the smelting category of molten pools, and is widely applied to smelting of nonferrous metals in lead and copper. The spray gun is a core device of Ai Sa or Ausmelt smelting method, is a technical core of top-blown copper smelting, and directly influences smelting process and product quality. The invention aims at top-blown smelting copper matte, and is suitable for top-blown smelting of various copper sulfide-containing materials.
The top-blown smelting of copper sulphide is carried out in a stationary cylindrical furnace. Copper sulphide concentrate and flux are added from the top of the furnace and fall into a slag having a certain amount at the bottom, forming a high temperature melt with solid inclusions. A spray gun is inserted from the center of the top of the furnace, the end of the spray gun is immersed in semi-solidified slag mixed with solids, and oxygen-enriched air blown by the spray gun mainly reacts with iron sulfide in slag to generate oxides dissolved in slag and copper matte indissoluble in slag. The process emits heat, and the released heat can heat and melt the added copper sulfide concentrate. The existing Ai Sa or Ausmelt smelting method has almost no measurement and display of gun position insertion depth, and particularly has no alarm notice of contact with copper matte. To predict whether the lance is in contact with copper matte, ai Sa or austempering cannot be done. Whether the spray gun contacts copper matte is predicted, corrosion of metal sulfide to the spray gun can be avoided, equipment operation rate is improved, and equipment yield is improved, so that the method is a main attack research direction in the top-blown smelting process.
The size of the electrode spacing (electrode-to-metal bath spacing) is proportional (inversely proportional) to the conductivity (or resistivity) of the slag, given the current, voltage and area. Currently, the conductivity (or resistivity) data of slag systems is relatively lacking, so that it is necessary to measure the conductivity (or resistivity) of slag systems in a top-blown smelting system to determine the distance between a lance inserted into the melt and copper matte and to predict whether the lance is in contact with copper matte. This is necessary to protect the top-blown smelting lances (to inhibit corrosion to the lances) and is a major approach to improving lance life in top-blown smelting.
Patent CN206989712U discloses a submerged lance for copper molten pool smelting, which comprises a fuel pipe, an air pipe, a swirl plate, swirl holes, a mixing chamber and a submerged lance head, wherein the fuel pipe is arranged in the air pipe, the outlet end of the fuel pipe and the swirl holes at the outlet end of the air pipe are positioned on the same plane, the lower part of the plane is provided with the mixing chamber, the submerged lance head is connected below the mixing chamber, the inner wall of the air pipe and the outer wall of the fuel pipe are provided with the swirl plate, air in the air pipe enters the mixing chamber through the swirl holes, a protective sleeve is arranged outside the air pipe, extends to the bottom of the mixing chamber, and an air outlet hole is formed at the lower part of the mixing chamber, and cooling air is introduced into the protective sleeve; the device has good rotational flow effect, more complete mixing of air and fuel, high temperature resistance, corrosion resistance and long service life. But does not involve the technique of "gun position monitoring and control".
In the ' Ausmelt furnace spray gun position control and spray gun service life research ' of the Yangzhui ' paper, one of factors affecting the spray gun service life is the depth of a spray gun immersed in a molten pool, namely the automatic control technical level of the spray gun position, and the smelting state of the spray gun in the stirring process is mostly judged by relying on manual experience in the past, so that the spray gun position is inaccurate in positioning, unstable in production and low in service life, and the required production index is difficult to reach. Optimizing end backpressure setting parameters of the spray gun through data statistics analysis; in the aspects of design and transformation of a spray gun end pressure detection system, the spray gun end pressure detection system is arranged and used for detecting the depth of a spray gun immersed in a molten pool, the automatic control level of the spray gun position is improved, and the service life of the spray gun after transformation is prolonged to 91h. Techniques for "gun position monitoring and control" using an "end pressure detection system" are disclosed. The method adopts a differential pressure transmitter to monitor and control gun positions, and has the defects of complex device and the like.
The patent CN202110153814.9 discloses a spray gun position control technology of a spray gun of a Ausmelt smelting furnace, namely the timely adjustment of the gun position is mainly judged by a pressure value of a spray gun head, and the spray gun position is adjusted up and down by a DCS system control spray gun lifting mechanism, so that the spray gun position control method still has the defects of complex device and the like.
Disclosure of Invention
Aiming at the problems and the defects existing in the prior art, the invention provides a gun position monitoring and early warning method and a gun position monitoring and early warning system for molten pool molten copper smelting of a top-blown submerged spray gun.
A lance position monitoring and early warning method for molten pool smelting copper of a top-blowing immersed lance comprises the following specific steps: and (3) embedding graphite electrodes at the inner side of the side wall of the top-blown smelting furnace and at the position of the copper matte layer region, connecting a power supply positive electrode wire in the gun position monitoring and early warning instrument with a steel rod on the graphite electrodes, connecting a power supply negative electrode wire in the gun position monitoring and early warning instrument with an originally used spray gun to form a closed loop, measuring resistance through the gun position monitoring and early warning instrument, and warning the gun position monitoring and early warning instrument when measured resistance data are abnormal.
The abnormal resistance data is a rapid decrease in measured resistance.
The abnormal resistance data is that the ratio of the resistance change rate of each half minute at a certain moment to the resistance change rate of each half minute at the previous moment is more than or equal to 2.
The utility model provides a rifle position monitoring and early warning system of top-blown immersed spray gun molten bath smelting copper, including rifle position monitoring and early warning appearance 1, wire 2, graphite electrode 3 and spray gun 7, the inboard of top-blown smelting furnace 6 side wall and the position that is located copper matte layer 4 are equipped with graphite electrode 3, bond the steel bar on the graphite electrode 3, rifle position monitoring and early warning appearance 1 power positive pole passes through wire 2 and connects graphite electrode 3's steel bar, rifle position monitoring and early warning appearance 1 power negative pole passes through wire 2 and connects spray gun 7, forms the return circuit.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller.
The constant voltage power supply unit in the gun position monitoring and early warning instrument 1 provides power for the graphite electrode 3 and the spray gun 7, and the power supply is 5.0V-30.0V; the resistance measuring unit measures the resistance in the loop, and the resistance measuring range is 1 omega-1000 omega; the display unit displays the measured resistance and the real-time power supply value; a resistance data storage unit that stores measured resistance data and calculated resistance data; the logic operation unit is used for operating the measured resistance along with the time change; the alarm unit performs an alarm process.
The controller in the gun position monitoring and early warning instrument 1 controls the constant voltage power supply unit to provide power for the loop, then controls the resistance measuring unit to measure the resistance data in the loop in real time, calculates the ratio of the resistance change rate through the logic operation unit, stores the measured and calculated resistance data through the resistance data storage unit, displays the resistance data through the display unit, and controls the alarm unit to alarm when abnormal resistance data occurs.
The graphite electrode 3 is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode 3 is 100cm 2 -300cm 2 。
The steel bar is made of 310s stainless steel material.
The main composition of slag in the slag layer 5 in the top-blown smelting furnace 6 is as follows: 7.50% Al 2 O 3 ，5.00％CaO，31.00％-35.00％Fe，31.00％-35.00％SiO 2 。
Copper matte layer 4 in the top-blown smelting furnace 6 contains copper matte as main component: cu47.07% -65.20%, fe29.00% -13.05%, S21.02% -24.10%.
The working principle of gun position monitoring and early warning of molten pool molten copper smelting of a top-blowing immersed spray gun of the invention is as follows:
the gun position monitoring and early warning instrument can directly measure and obtain the resistance R in a closed loop of the gun position monitoring and early warning system of the top-blowing submerged spray gun molten pool molten copper smelting through ohm law formula R=U/I.
As can be seen from fig. 2, slag resistivity detection principle: for a cylindrical homogeneous conductor made of a certain material, its resistance R is proportional to the length L and inversely proportional to the cross-sectional area S, i.e.:
R＝ρ·L/S
where ρ is a proportionality coefficient, and is determined by the material of the conductor and the ambient temperature, and is called resistivity. The resistivity ρ is constant when the composition of the melt is constant with temperature. Since the resistivity of slag is 30.0-40.0Ω & cm and the resistivity of copper matte is 0.001-0.01Ω & cm, the total resistance of the lead wire, the graphite rod and the copper matte is small, and the influence can be ignored. As in fig. 1, the resistance of the measurement line is almost contributed by the resistance of the slag L segment.
The distance L between the lance tip and the copper matte can be determined by a resistivity formula describing the conductivity of the conductor, as long as the resistance between the lance and the copper matte in the top-blown smelting system is determined:
L＝R·S/ρ
when the gun position of molten copper smelting in a spray gun molten pool is measured, the copper matte is carried up due to gas stirring, and when the distance between the end of the spray gun and the copper matte is small, the resistance change is large and does not accord with a formula. At this time, the logic operation unit calculates the change of the measured resistance along with the time, the ratio of the change rate of the resistance of each half minute to the change rate of the resistance of each half minute at the previous moment is more than or equal to 2, and then the calculation result is transmitted to the controller, and the controller starts the alarm unit to alarm.
Or when the spray gun contacts or approaches to contact with copper matte, the gun position monitoring and early warning instrument measures that the resistance of slag is suddenly reduced, the abnormal data is transmitted to the controller, and the controller starts the alarm unit to alarm.
In the system, the spray gun is not required to be insulated from the furnace shell, the spray gun lifting mechanism and the like, but the graphite electrode and the steel rod connected with the graphite electrode are required to be insulated from the furnace shell, so that the height and the centering of the rod-shaped electrode are ensured to be accurately adjusted.
The beneficial effects of the invention are as follows:
(1) The method and the system can measure the gun position of the submerged lance and assist other operations of copper smelting in a molten pool of the submerged lance.
(2) The system forms on-line monitoring and early warning of the gun position of molten pool molten copper smelting of the submerged spray gun, accurately controls the gun position, prolongs the service life of the spray gun, improves the equipment operation rate and finally strengthens smelting.
(3) The method and the system can predict whether the spray gun contacts copper matte or not, and alarm processing is carried out when the resistance data is abnormal.
Drawings
FIG. 1 is a schematic diagram of a lance position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool;
FIG. 2 is a schematic diagram of the slag resistivity detection principle of the present invention;
FIG. 3 is a schematic diagram of the gun position monitoring and early warning system of the present invention.
In the figure: 1-gun position monitoring and early warning instrument, 2-wire, 3-graphite electrode, 4-copper matte layer, 5-slag layer, 6-top-blown smelting furnace and 7-spray gun.
Detailed Description
The invention will be further described with reference to the drawings and detailed description.
Example 1
As shown in figures 1 and 2, the gun position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool comprises a gun position monitoring and early warning instrument 1, a lead 2, a graphite electrode 3 and a lance 7, wherein the graphite electrode 3 is arranged on the inner side of a side wall of a top-blown smelting furnace 6 and positioned at a copper matte layer 4, a steel rod is bonded on the graphite electrode 3, the positive electrode of a gun position monitoring and early warning instrument 1 is connected with the steel rod of the graphite electrode 3 through the lead 2, and the negative electrode of the gun position monitoring and early warning instrument 1 is connected with the lance 7 through the lead 2 to form a loop.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller;
the graphite electrode 3 is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode 3 is 100cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The steel bar is made of 310s stainless steel material.
The gun position monitoring and early warning method for the molten pool molten copper smelting of the top-blowing immersed spray gun comprises the following specific steps: is positioned at the inner side of the side wall of the top-blown smelting furnace 6 and is positioned at the copper matte layer 4 (copper matte main component in the copper matte layer 4: cu 65.20%, fe 13.05%, S21.02%, slag main component in the slag layer 5: 7.50% Al) 2 O 3 ，5.00％CaO，31.00％Fe，35.00％SiO 2 ) The graphite electrode 3 is pre-buried in the regional position, and a power supply positive electrode lead 2 in the gun position monitoring and early warning instrument 1 is connected with a steel bar on the graphite electrode 3The gun position monitoring and early warning instrument 1 is connected with an original used spray gun 7 through a power supply negative electrode lead 2 to form a closed loop, the power supply is controlled to be a direct current power supply of 5.0V, the measured resistance of the gun position monitoring and early warning instrument 1 is 100 omega at the temperature of 1200 ℃, and the distance L between the spray gun and copper matte is 13.96cm and is obtained through calculation and is normal data.
Example 2
As shown in figures 1 and 2, the gun position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool comprises a gun position monitoring and early warning instrument 1, a lead 2, a graphite electrode 3 and a lance 7, wherein the graphite electrode 3 is arranged on the inner side of a side wall of a top-blown smelting furnace 6 and positioned at a copper matte layer 4, a steel rod is bonded on the graphite electrode 3, the positive electrode of a gun position monitoring and early warning instrument 1 is connected with the steel rod of the graphite electrode 3 through the lead 2, and the negative electrode of the gun position monitoring and early warning instrument 1 is connected with the lance 7 through the lead 2 to form a loop.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller;
the graphite electrode 3 is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode 3 is 300cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The steel bar is made of 310s stainless steel material.
The gun position monitoring and early warning method for the molten pool molten copper smelting of the top-blowing immersed spray gun comprises the following specific steps: is positioned at the inner side of the side wall of the top-blown smelting furnace 6 and is positioned at the copper matte layer 4 (copper matte main component of the copper matte layer 4: cu47.07%, fe29.00%, S24.10%, slag main component of the slag layer 5: 7.50% Al) 2 O 3 ，5.00％CaO，35.00％Fe，31.00％SiO 2 ) The graphite electrode 3 is pre-buried in the regional position, the positive electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with a steel bar on the graphite electrode 3, the negative electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with the original spray gun 7 to form a closed loop, the direct current power supply of 30.0V is controlled, the measured resistance of the gun position monitoring and early warning instrument 1 is 1000 omega at the temperature of 1205 ℃, the distance L between the spray gun and copper matte is 39.61cm through calculation, and the distance L is normal data.
Example 3
As shown in figures 1 and 2, the gun position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool comprises a gun position monitoring and early warning instrument 1, a lead 2, a graphite electrode 3 and a lance 7, wherein the graphite electrode 3 is arranged on the inner side of a side wall of a top-blown smelting furnace 6 and positioned at a copper matte layer 4, a steel rod is bonded on the graphite electrode 3, the positive electrode of a gun position monitoring and early warning instrument 1 is connected with the steel rod of the graphite electrode 3 through the lead 2, and the negative electrode of the gun position monitoring and early warning instrument 1 is connected with the lance 7 through the lead 2 to form a loop.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller;
the graphite electrode 3 is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode 3 is 200cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The steel bar is made of 310s stainless steel material.
The gun position monitoring and early warning method for the molten pool molten copper smelting of the top-blowing immersed spray gun comprises the following specific steps: is positioned at the inner side of the side wall of the top-blown smelting furnace 6 and is positioned at the copper matte layer 4 (copper matte main component in the copper matte layer 4: cu 55.64%, fe 19.35%, S22.21%, slag main component in the slag layer 5: 7.50% Al) 2 O 3 ，5.00％CaO，33.00％Fe，33.00％SiO 2 ) The graphite electrode 3 is pre-buried in the regional position, the positive electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with a steel bar on the graphite electrode 3, the negative electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with the original spray gun 7 to form a closed loop, the control power supply is a 24V direct current power supply, the measuring resistance of the gun position monitoring and early warning instrument 1 is 500 omega at the temperature of 1200 ℃, and the distance L between the spray gun and copper matte is 29.81cm and is the normal data through calculation.
Example 4
As shown in figures 1 and 2, the gun position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool comprises a gun position monitoring and early warning instrument 1, a lead 2, a graphite electrode 3 and a lance 7, wherein the graphite electrode 3 is arranged on the inner side of a side wall of a top-blown smelting furnace 6 and positioned at a copper matte layer 4, a steel rod is bonded on the graphite electrode 3, the positive electrode of a gun position monitoring and early warning instrument 1 is connected with the steel rod of the graphite electrode 3 through the lead 2, and the negative electrode of the gun position monitoring and early warning instrument 1 is connected with the lance 7 through the lead 2 to form a loop.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller;
the graphite electrode 3 is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode 3 is 200cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The steel bar is made of 310s stainless steel material.
The gun position monitoring and early warning method for the molten pool molten copper smelting of the top-blowing immersed spray gun comprises the following specific steps: is positioned at the inner side of the side wall of the top-blown smelting furnace 6 and is positioned at the copper matte layer 4 (copper matte main component of the copper matte layer 4: cu 58.34%, fe 18.93%, S22.02% and slag main component of the slag layer 5: 7.50% Al) 2 O 3 ，5.00％CaO，33.67％Fe，33.50％SiO 2 ) The graphite electrode 3 is pre-buried in the regional position, the positive electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with a steel bar on the graphite electrode 3, the negative electrode wire 2 of the power supply in the gun position monitoring and early warning instrument 1 is connected with the original spray gun 7 to form a closed loop, the direct current power supply of 12V is controlled, the measured resistance of the gun position monitoring and early warning instrument 1 is 450 omega at the temperature of 1200 ℃, and the distance L between the spray gun and copper matte is 29.67cm and is the normal data through calculation.
Example 5
As shown in figures 1 and 2, the gun position monitoring and early warning system for molten copper smelting in a top-blown submerged lance molten pool comprises a gun position monitoring and early warning instrument 1, a lead 2, a graphite electrode 3 and a lance 7, wherein the graphite electrode 3 is arranged on the inner side of a side wall of a top-blown smelting furnace 6 and positioned at a copper matte layer 4, a steel rod is bonded on the graphite electrode 3, the positive electrode of a gun position monitoring and early warning instrument 1 is connected with the steel rod of the graphite electrode 3 through the lead 2, and the negative electrode of the gun position monitoring and early warning instrument 1 is connected with the lance 7 through the lead 2 to form a loop.
The gun position monitoring and early warning instrument 1 comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller;
graphite electrode 3 is bonded by ferrophosphorusConnecting steel bar, graphite electrode 3 cross section area 200cm 2 The method comprises the steps of carrying out a first treatment on the surface of the The steel bar is made of 310s stainless steel material.
The gun position monitoring and early warning method for the molten pool molten copper smelting of the top-blowing immersed spray gun comprises the following specific steps: the inner side of the side wall of the top-blown smelting furnace 6 is positioned on the copper matte layer 4 (copper matte main component in the copper matte layer 4: cu47.07% -65.20%, fe29.00% -13.05%, S21.02% -24.10%, and slag main component in the slag layer 5: 7.50% Al) 2 O 3 The graphite electrode 3 is pre-buried in the region position of 5.00 percent of CaO,31.00 to 35.00 percent of Fe and 31.00 to 35.00 percent, a power supply positive electrode lead 2 in the gun position monitoring and early warning instrument 1 is connected with a steel bar on the graphite electrode 3, a closed loop is formed by connecting a power supply negative electrode lead 2 in the gun position monitoring and early warning instrument 1 with an originally used spray gun 7, the direct current power supply of 12V is controlled, the resistance is measured to be severely fluctuated between 1 omega and 10 omega through the gun position monitoring and early warning instrument 1 at the temperature of 1205 ℃, and meanwhile, the ratio of the resistance change rate of each half minute to the resistance change rate of each half minute at the previous moment is more than or equal to 2; and the gun position monitoring and early warning instrument 1 alarms for abnormal data.
While the present invention has been described in detail with reference to the drawings, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (7)
1. A gun position monitoring and early warning method for molten copper smelting in a top-blowing immersed spray gun molten pool is characterized by comprising the following specific steps: and (3) embedding graphite electrodes at the inner side of the side wall of the top-blown smelting furnace and at the position of the copper matte layer region, connecting a power supply positive electrode wire in the gun position monitoring and early warning instrument with a steel rod on the graphite electrodes, connecting a power supply negative electrode wire in the gun position monitoring and early warning instrument with an originally used spray gun to form a closed loop, measuring resistance through the gun position monitoring and early warning instrument, and warning the gun position monitoring and early warning instrument when measured resistance data are abnormal.
2. The lance position monitoring and early warning method for molten bath smelting copper of a top-blown submerged lance according to claim 1, wherein the lance position monitoring and early warning method is characterized in that: the abnormal resistance data is a rapid decrease in measured resistance.
3. The lance position monitoring and early warning method for molten bath smelting copper of a top-blown submerged lance according to claim 1, wherein the lance position monitoring and early warning method is characterized in that: the abnormal resistance data is that the ratio of the resistance change rate of each half minute at a certain moment to the resistance change rate of each half minute at the previous moment is more than or equal to 2.
4. A gun position monitoring and early warning system for molten pool smelting copper of a top-blowing immersed spray gun is characterized in that: including rifle position monitoring and early warning appearance (1), wire (2), graphite electrode (3) and spray gun (7), the inboard of top-blown smelting furnace (6) side wall and the position that is located copper matte layer (4) are equipped with graphite electrode (3), bond the steel bar on graphite electrode (3), and rifle position monitoring and early warning appearance (1) power positive pole passes through the steel bar that wire (2) connect graphite electrode (3), and rifle position monitoring passes through wire (2) with early warning appearance (1) power negative pole and connects spray gun (7), forms the return circuit.
5. The lance position monitoring and early warning system for molten bath copper smelting of a top-blown submerged lance of claim 4, wherein: the gun position monitoring and early warning instrument (1) comprises a controller, and a resistance measuring unit, a constant voltage power supply unit, a logic operation unit, a display unit, a resistance data storage unit and an alarm unit which are all electrically connected with the controller.
6. The lance position monitoring and early warning system for molten bath copper smelting of a top-blown submerged lance of claim 4, wherein: the graphite electrode (3) is bonded with a steel bar through ferrophosphorus, and the cross section area of the graphite electrode (3) is 100cm 2 -300cm 2 。
7. The lance position monitoring and early warning system for molten bath copper smelting of a top-blown submerged lance of claim 6, wherein: the steel bar is made of 310s stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310745202.8A CN116793093A (en) | 2023-06-22 | 2023-06-22 | Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310745202.8A CN116793093A (en) | 2023-06-22 | 2023-06-22 | Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116793093A true CN116793093A (en) | 2023-09-22 |
Family
ID=88039728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310745202.8A Pending CN116793093A (en) | 2023-06-22 | 2023-06-22 | Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116793093A (en) |
-
2023
- 2023-06-22 CN CN202310745202.8A patent/CN116793093A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6544314B2 (en) | Process and apparatus for automatically controlling slag foaming | |
| CN109550906B (en) | Method for measuring molten steel flow velocity in continuous casting crystallizer | |
| CN115494010A (en) | Molten steel component and temperature continuous detection system and method | |
| WO1990013015A1 (en) | Continuous-use molten metal inclusion sensor | |
| CN104480496A (en) | Measuring device and method for height of melt of aluminum electrolytic cell and pressure drop of furnace bottom | |
| CN105588781B (en) | A kind of device and method for measuring field trash rate of dissolution in metallurgy clinker | |
| US6309442B1 (en) | Refractory material sensor for determining level of molten metal and slag and method of using | |
| CN116793093A (en) | Gun position monitoring and early warning method and system for top-blown submerged lance molten pool smelting copper | |
| CN212721220U (en) | Device for measuring thickness of molten iron slag through buoyancy change | |
| CN114433806B (en) | Method and system for preventing molten steel of tundish from being carbureted | |
| CN204434742U (en) | A kind of device measuring aluminium cell melt height and hearth and bottom | |
| KR20020064527A (en) | Sub lance combinations probe and thereof measuring method for converter | |
| CA1108269A (en) | Molten metal level indication in receptacles | |
| Dompas et al. | Oxygen control in liquid copper by the oxycell | |
| CN208205821U (en) | A kind of feeding device of copper scrap fusing | |
| CN207779326U (en) | A kind of device measuring the easy attack sites tank block residual thickness of glass melter | |
| KR101076760B1 (en) | Apparatus of measuring slag thickness | |
| CN220912408U (en) | Submerged level measurement system for molten metal | |
| CN100406834C (en) | Detection device of corrosion of induction furnace bottom aeration element | |
| CN115652020B (en) | Ladle clearance detector and ladle clearance detection method | |
| CN109186709B (en) | Method for measuring matte liquid level in oxygen-enriched bottom blowing furnace | |
| JPH09145450A (en) | Slag layer thickness measuring method | |
| CN219266804U (en) | Self-heating furnace oxygen lance with lance position calibration device | |
| CN214830590U (en) | Continuous refining furnace system with shaft furnace for online detection of oxygen content of copper liquid | |
| CN218620902U (en) | Blast furnace iron runner erosion early warning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |