Stainless steel plate production device and production method

Abstract

The invention discloses a stainless steel plate production device and method.The stainless steel plate production device comprises a frame body, a smelting furnace is installed on the frame body, a steel outlet and a feeding pipe are installed on the smelting furnace, the feeding pipe communicates with a feeding mechanism, a communicating pipe is fixedly connected to the smelting furnace, and a protection cabinet is installed on the frame body; a first through hole matched with the communicating pipe is formed in the protection cabinet, a sampling mechanism, a detection mechanism and an intelligent control mechanism are arranged in the protection cabinet, and the intelligent control mechanism is used for controlling the sampling mechanism, the detection mechanism and the feeding mechanism. According to the stainless steel plate production device and the stainless steel plate production method, in the stainless steel waste refining process, the chromium content in the stainless steel waste is accurately measured and calculated, and a corresponding amount of chromium is added into the smelting furnace according to the measurement and calculation result, so that it is ensured that the produced stainless steel plate reaches the proper chromium content; and the product quality problem and the safety risk caused by insufficient or excessive chromium are avoided.

Description

Technical Field

[0001] The present invention belongs to the technical field of stainless steel plate production, and particularly relates to a stainless steel plate production device and a production method. Background Art

[0002] With the continuous consumption of energy ores, the country attaches more importance to the development indicators of waste recycling, especially in the recycling and reuse of stainless steel. By recycling waste stainless steel, not only can the exploitation of iron ore be greatly reduced, but also the production cost can be significantly lowered. When stainless steel is exposed to air, chromium elements will quickly form a very thin but dense chromium oxide film on its surface, which plays a protective role. When this film is damaged, chromium elements will migrate to the damaged area to reform the passivation film and achieve self-repair.

[0003] However, when recycling waste stainless steel, chromium elements will be reduced due to different degrees of consumption, and the waste also contains impurities, which requires processes such as pickling, water washing, and grinding for decontamination. Therefore, when remelting, it is difficult to accurately determine the chromium content in stainless steel. If the added chromium element is insufficient, it will affect the anti-corrosion performance of the stainless steel plate and does not meet the usage requirements; if too much chromium element is added, it may cause symptoms such as skin itching, allergies, headaches, dizziness, nausea, vomiting, etc. when users come into contact with the stainless steel, and may even induce serious health problems such as cancer. Although traditional stainless steel recycling methods can reduce the dependence on iron ore, there is uncertainty in the addition of chromium elements, which is likely to cause performance fluctuations and health risks.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a stainless steel plate production device and a production method.

[0005] The information disclosed in this background art section is only intended to enhance the overall understanding of the present invention and should not be regarded as an admission or any form of implication that this information constitutes prior art already known to those of ordinary skill in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a stainless steel plate production device and a production method, which can accurately measure the chromium content in waste stainless steel during the refining process, and add the corresponding amount of chromium to the melting furnace according to the measurement result, so as to ensure that the produced stainless steel plate reaches an appropriate chromium content, avoiding product quality problems and safety risks caused by insufficient or excessive chromium elements.

[0007] To achieve the above object, a stainless steel plate production device provided by a specific embodiment of the present invention includes a frame body, on which a melting furnace is installed. An outlet and a feeding pipe are installed on the melting furnace. The feeding pipe is communicated with a feeding mechanism. A connecting pipe is fixedly connected to the melting furnace. A protective cabinet is installed on the frame body. A first through hole matching the connecting pipe is provided on the protective cabinet. A sampling mechanism, a detection mechanism and an intelligent control mechanism are arranged in the protective cabinet. The sampling mechanism includes a sleeve, on which a fixing block is integrally formed. A first cylinder is installed in the sampling mechanism. A sliding block is fixedly connected to the first cylinder. A connecting frame is fixedly connected to the sliding block. The connecting frame penetrates through the fixing block. One end of the connecting frame far from the sliding block is fixedly connected to a sampling box. A second through hole is provided on the sampling box. A first groove body matching the sampling box is provided on the fixing block. The detection mechanism is used to detect the chromium content in the stainless steel in the sampling box. The intelligent control mechanism is used to control the sampling mechanism, the detection mechanism and the feeding mechanism.

[0008] In one or more embodiments of the present invention, a second guide rail is installed on the sampling mechanism. A second electronic slider is slidably connected to the second guide rail. A weighing device is arranged on the second electronic slider. The sleeve is fixedly installed on the weighing device.

[0009] In one or more embodiments of the present invention, the aperture of the second through hole is 0.8 - 1.5 mm. A convex block matching the second through hole is integrally formed on the fixing block.

[0010] In one or more embodiments of the present invention, the detection mechanism includes a detection box. A third through hole matching the second through hole is provided on the detection box. A first placement space, a second placement space, a third placement space and a fourth placement space are arranged in the detection box.

[0011] A conical funnel is installed in the first placement space. The conical funnel is communicated with the second placement space.

[0012] A first liquid storage tank is arranged in the second placement space. A first mixed liquid is stored in the first liquid storage tank. A first metering pump is installed on the first liquid storage tank. A first infusion pipe is installed on the first metering pump. A test tube is fixedly connected to the first infusion pipe.

[0013] The third placement space is provided with a second liquid storage tank, a third liquid storage tank and a fourth liquid storage tank; the second liquid storage tank stores a second mixed liquid, a second metering pump is installed on the second liquid storage tank, a fourth infusion tube and a switch are installed on the second metering pump, a third infusion tube is fixedly installed on the fourth infusion tube, a connecting plate is fixedly connected to the third infusion tube, and a second cylinder matching the connecting plate is installed in the third placement space; the third liquid storage tank stores an ammonium sulfate solution, a fifth infusion tube is installed on the third liquid storage tank, and a second electromagnetic flow valve is installed on the fifth infusion tube; the fourth liquid storage tank stores an ammonium ferrous sulfate solution, a sixth infusion tube is installed on the fourth liquid storage tank, and a third electromagnetic flow valve is installed on the sixth infusion tube;

[0014] A third cylinder is installed in the fourth placement space, and a beaker and a vision sensor are fixedly connected to the third cylinder.

[0015] In one or more embodiments of the present invention, a second groove is formed in the test tube, a plug body is sealed in the second groove, a liquid inlet is formed in the third infusion tube, a first magnet block is embedded in the plug body, and a second magnet block matching the first magnet block is embedded in the third infusion tube.

[0016] In one or more embodiments of the present invention, the first mixed liquid is hydrochloric acid and nitric acid, and the ratio of hydrochloric acid to nitric acid is 4:1; the second mixed liquid is sulfuric acid and phosphoric acid, and the ratio of sulfuric acid to phosphoric acid is 2:1.

[0017] In one or more embodiments of the present invention, a first guide rail is fixedly connected inside the protective cabinet, a first electronic slider is slidably connected to the first guide rail, a bearing plate is fixedly connected to the first electronic slider, a heat insulation plate is fixedly connected to the bearing plate, the detection box is fixedly connected to the bearing plate, and a heat conduction column is installed in the fourth placement space and penetrates through the bearing plate and the heat insulation plate.

[0018] In one or more embodiments of the present invention, a titration solution is contained in the first placement space, a second infusion tube is installed on the test tube, the second infusion tube is communicated with the first placement space, and a first electromagnetic flow valve is installed on the second infusion tube.

[0019] In one or more embodiments of the present invention, a heat insulation cover is installed on the connecting pipe, and a first motor is installed on the heat insulation cover.

[0020] To achieve the above object, a specific embodiment of the present invention provides a method for producing a stainless steel plate, including the following steps:

[0021] S1. Melting: Add stainless steel waste products into the melting furnace through the feeding mechanism. The melting furnace melts the stainless steel waste products to make them in a liquid state.

[0022] S2. Sampling: The sampling mechanism takes out the liquid stainless steel in the melting furnace. As the first cylinder continuously retracts, the sampling box gradually enters the first groove body. The liquid stainless steel in the sampling box is ejected from the second through-hole after being extruded by the fixed block and enters the detection mechanism.

[0023] S3. Detection: The stainless steel solution entering the detection mechanism is sprayed on the conical funnel to form particles that solidify and fall into the test tube. Inject the first mixed solution into the test tube to dissolve the stainless steel particles into a solution and then discharge it into the beaker. Add the second mixed solution to the beaker to remove nitrogen oxides, and then add ammonium sulfate solution to make the solution turn red, so that the Cr 3+ is converted to Cr 6+ , add ammonium ferrous sulfate solution to make the solution turn green and record the flow rate of the ammonium ferrous sulfate solution.

[0024] S4. Calculation: Calculate the chromium element content in the stainless steel according to the consumption of the ammonium ferrous sulfate solution.

[0025] S5. Feeding: Supplement the corresponding chromium into the melting furnace according to the measured chromium element content.

[0026] Compared with the prior art, a stainless steel plate production device and production method of the present invention can, during the process of refining stainless steel waste products, accurately measure the chromium content in the stainless steel waste products, and add the corresponding amount of chromium to the melting furnace according to the measurement results, so as to ensure that the produced stainless steel plate reaches an appropriate chromium content, and avoid product quality problems and safety risks caused by insufficient or excessive chromium elements. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 It is a schematic structural diagram of a stainless steel plate production device in an embodiment of the present invention;

[0029] Figure 2 It is a partial cross-section of a stainless steel plate production device in an embodiment of the present invention Figure 1 ;

[0030] Figure 3Partial cross-section of a stainless steel plate production device in an embodiment of the present invention Figure 2 ;

[0031] Figure 4 is Figure 3 the structural schematic diagram of the position A in

[0032] Figure 5 Partial cross-sectional view of the protective cabinet of a stainless steel plate production device in a right-view state in an embodiment of the present invention;

[0033] Figure 6 Partial cross-sectional view of the sampling mechanism of a stainless steel plate production device in an embodiment of the present invention;

[0034] Figure 7 Cross-section of the detection mechanism of a stainless steel plate production device in an embodiment of the present invention Figure 1 ;

[0035] Figure 8 Cross-section of the detection mechanism of a stainless steel plate production device in an embodiment of the present invention Figure 2 ;

[0036] Figure 9 is Figure 8 the structural schematic diagram of the position B in

[0037] Figure 10 is Figure 8 the structural schematic diagram of the position C in

[0038] Figure 11 is Figure 8 the structural schematic diagram of the position D in

[0039] Figure 12 is Figure 11 the structural schematic diagram of the position E in

[0040] Figure 13 Partial cross-sectional view of a stainless steel plate production device in an embodiment of the present invention when the second infusion tube and the third infusion tube are not connected.

[0041] Main reference numeral description:

[0042] 1. Frame body; 2. Melting furnace; 21. Steel tapping opening; 22. Connecting pipe; 23. Heat insulation cover; 231. First motor; 24. Feeding pipe; 3. Protection cabinet; 301. First through hole; 31. First guide rail; 311. First electronic slider; 32. Bearing plate; 321. Heat insulation plate; 4. Sampling mechanism; 41. Second guide rail; 411. Second electronic slider; 412. Weighing device; 42. Sleeve; 421. Fixed block; 422. First groove; 423. Protrusion; 43. First cylinder; 431. Sliding block; 44. Connecting frame; 45. Sampling box; 451. Second through hole; 5. Detection mechanism; 51. Detection box; 501. Third through hole; 502. First placement space; 5021. Titration solution; 503. Second placement space; 504. Third placement space; 505. Fourth placement space; 52. Conical funnel; 53. First liquid storage tank; 531. First mixed solution; 532. First metering pump; 533. First infusion pipe; 54. Test tube; 541. Second groove; 542. Plug body; 543. First magnet block; 544. Second infusion pipe; 545. First electromagnetic flow valve; 55. Third infusion pipe; 551. Liquid inlet; 552. Second magnet block; 553. Connecting plate; 554. Second cylinder; 56. Second liquid storage tank; 561. Second mixed solution; 562. Second metering pump; 563. Fourth infusion pipe; 564. Switch; 57. Third liquid storage tank; 571. Ammonium sulfate solution; 572. Fifth infusion pipe; 573. Second electromagnetic flow valve; 58. Fourth liquid storage tank; 581. Ammonium ferrous sulfate solution; 582. Sixth infusion pipe; 583. Third electromagnetic flow valve; 59. Third cylinder; 591. Beaker; 5901. Vision sensor; 592. Second motor; 593. Heat conduction column; 594. Waste liquid box; 6. Intelligent control mechanism. Detailed implementation manners

[0043] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0044] As Figures 1 to 4As shown in the figure, a stainless steel plate production device in an embodiment of the present invention includes a frame body 1, a melting furnace 2 is installed on the frame body 1, a steel outlet 21 and a feeding pipe 24 are installed on the melting furnace 2, and the feeding pipe 24 is communicated with a feeding mechanism. A connecting pipe 22 is integrally formed on the melting furnace 2, a protective cabinet 3 is installed on the frame body 1, and a first through hole 301 matching the connecting pipe 22 is provided on the protective cabinet 3. A sampling mechanism 4, a detection mechanism 5 and an intelligent control mechanism 6 are provided in the protective cabinet 3, and the intelligent control mechanism 6 is used to control the sampling mechanism 4, the detection mechanism 5 and the feeding mechanism.

[0045] When producing stainless steel, stainless steel waste products are added into the melting furnace 2 through the feeding mechanism, and the melting furnace 2 melts the stainless steel waste products to make them into a liquid state, and the liquid stainless steel in the melting furnace 2 is sampled through the sampling mechanism 4.

[0046] Specifically, as Figure 2 and Figure 6 shown in the figure, the sampling mechanism 4 includes a sleeve 42, the sleeve 42 is welded on the upper panel of the protective cabinet 3, and a fixing block 421 is integrally formed at one end of the sleeve 42 away from the upper panel of the protective cabinet 3. A first cylinder 43 is installed in the sampling mechanism 4, a sliding block 431 is welded on the first cylinder 43, a connecting frame 44 is welded on the sliding block 431, the connecting frame 44 passes through the fixing block 421 and can slide in the fixing block 421. A sampling box 45 is integrally formed at one end of the connecting frame 44 away from the sliding block 431, a second through hole 451 is provided on the sampling box 45, and a first groove 422 matching the sampling box 45 is provided on the fixing block 421.

[0047] Specifically, the aperture of the second through hole 451 is 1.5 mm. During sampling, the first cylinder 43 is started to extend, so that the connecting frame 44 enters the connecting pipe 22, and the sampling box 45 on the connecting frame 44 is immersed in the liquid stainless steel in the connecting pipe 22. Then the first cylinder 43 retracts, and the connecting frame 44 also retracts into the protective cabinet 3. During the retraction process of the connecting frame 44, the liquid stainless steel in the sampling box 45 will slowly flow out from the second through hole 451 due to gravity and fall back into the connecting pipe 22. As the first cylinder 43 gradually retracts, the sampling box 45 will enter the first groove 422. At this time, the lower end surface of the fixing block 421 will seal the inner diameter of the sampling box 45. Due to the air pressure, as long as the first cylinder 43 does not continue to retract, the liquid stainless steel in the sampling box 45 will no longer leak out from the second through hole 451.

[0048] Furthermore, the sampling mechanism 4 is mounted with a second guide rail 41, to which a second electronic slider 411 is slidably connected. A fixing block 421 is mounted on the second electronic slider 411, and the sleeve 42 is fixedly mounted on the weighing device 412. Specifically, when the sampling box 45 enters the first tank 422 and the liquid stainless steel in the sampling box 45 no longer leaks from the second through hole 451, the weighing device 412 records the weight as G1.

[0049] After sampling, sampling box 45 moves via second electronic slide 411 to the top of detection mechanism 5. First cylinder 43 retracts again, and sampling box 45 gradually enters first trough 422. During this process, first trough 422 compresses the liquid stainless steel inside sampling box 45, causing it to be ejected from second through-hole 451 into detection mechanism 5, completing the sampling process. At this point, weighing device 412 records the weight as G2. G1 minus G2 equals G, which is the weight of the stainless steel sampled this time. Intelligent control mechanism 6 receives the weight of the stainless steel sample and stores it as analytical data.

[0050] Alternatively, the diameter of the second through hole 451 may be 0.8 mm. This prevents the liquid stainless steel in the sampling box 45 from flowing out of the second through hole 451 due to surface tension during the retraction of the connecting frame 44. However, this will result in a larger amount of stainless steel sample in the sampling box 45, requiring more consumables for subsequent testing.

[0051] It is worth noting that the material of the connecting frame 44 and the sampling box 45 has a higher melting point than that of molten stainless steel to prevent them from melting during sampling. Preferably, the connecting frame 44 and the sampling box 45 are made of tungsten, which has a melting point 1900°C higher than that of stainless steel and does not melt during sampling.

[0052] In addition, the sampling box 45 needs to be immersed in the connecting tube 22 for more than 35 seconds when sampling, so that the temperature of the sampling box 45 is consistent with the temperature of the liquid stainless steel in the connecting tube 22, to prevent the liquid stainless steel in the sampling box 45 from solidifying in a short time.

[0053] Furthermore, a protrusion 423 matching the second through hole 451 is integrally formed on the fixed block 421. When the sampling box 45 enters the first slot 422, the protrusion 423 is inserted into the second through hole 451 to prevent residue in the second through hole 451, which would cause the next sample to be mixed with the residual stainless steel, resulting in inaccurate test results.

[0054] It is worth noting that when the sampling box 45 is sampling, the high temperature at the mouth of the connecting tube 22 will also enter the protective cabinet 3 through the first through hole 301, and the temperature inside the protective cabinet 3 will also rise, preventing the liquid stainless steel in the sampling box 45 from solidifying too quickly due to the low temperature in winter.

[0055] Further, a heat insulation cover 23 is installed on the connecting pipe 22, and a first motor 231 is installed on the heat insulation cover 23. When sampling work is not carried out, the first motor 231 covers the connecting pipe 22 to prevent the continuous high temperature at the pipe orifice of the connecting pipe 22 from affecting the intelligent control mechanism 6 in the protection cabinet 3. When sampling, the first motor 231 controls the heat insulation cover 23 to rotate and open the connecting pipe 22 for sampling.

[0056] As Figures 7 to 13 shown, the detection mechanism 5 includes a detection box 51. A third through hole 501 matching the second through hole 451 is formed in the detection box 51. A first placement space 502, a second placement space 503, a third placement space 504, and a fourth placement space 505 are provided in the detection box 51.

[0057] Specifically, a conical funnel 52 is installed in the first placement space 502, and the conical tip of the conical funnel 52 communicates with the second placement space 503. Since the aperture of the second through hole 451 is small, the liquid stainless steel in the sampling box 45 is pressurized by the fixing block 421 and splashes when sprayed on the conical funnel 52 from the second through hole 451. After the liquid stainless steel splashes and contacts the air, it solidifies to form fine steel beads, and these fine steel beads will fall into the second placement space 503 from the conical funnel 52.

[0058] A first liquid storage tank 53 is provided in the second placement space 503. A first mixed liquid 531 is stored in the first liquid storage tank 53. A first metering pump 532 is installed on the first liquid storage tank 53. A first infusion tube 533 is installed on the first metering pump 532, and a test tube 54 is fixedly connected to the first infusion tube 533. Specifically, the tube orifice of the test tube 54 matches the funnel orifice of the conical funnel 52, and the steel beads falling into the second placement space 503 from the conical funnel 52 fall into the test tube 54. At this time, the first metering pump 532 works to extract the first mixed liquid 531 in the first liquid storage tank 53 and make it enter the test tube 54 to dissolve the stainless steel beads in the test tube 54. Because the temperature of the just-solidified stainless steel is relatively high at this time, it will heat the first mixed liquid 531 entering the test tube 54, which can improve the dissolution speed and thus accelerate the overall detection efficiency.

[0059] A second liquid storage tank 56, a third liquid storage tank 57, and a fourth liquid storage tank 58 are provided in the third placement space 504. A second mixed liquid 561 is stored in the second liquid storage tank 56. A second metering pump 562 is installed on the second liquid storage tank 56. A fourth infusion tube 563 and a switch 564 are installed on the second metering pump 562. A third infusion tube 55 is fixedly installed on the fourth infusion tube 563. A connecting plate 553 is bonded to the third infusion tube 55, and a second cylinder 554 matching the connecting plate 553 is installed in the third placement space 504.

[0060] Specifically, after all the stainless steel in the test tube 54 is dissolved to form the first stainless steel solution, the second cylinder 554 starts to lift the connecting plate 553, so that the third infusion tube 55 enters the test tube 54 and is connected to the test tube 54, and the stainless steel solution in the test tube 54 enters the third infusion tube 55. At this time, the connecting plate 553 just presses on the switch 564, transmitting a signal to the second metering pump 562, and the second metering pump 562 also starts to inject the second mixed solution 561 in the second liquid storage tank 56 into the third infusion tube 55. When the second mixed solution 561 enters the third infusion tube 55, it mixes with the stainless steel solution entering the third infusion tube 55 to remove the nitrogen oxides in the first stainless steel solution and form the second stainless steel solution.

[0061] Specifically, the first mixed solution 531 is hydrochloric acid and nitric acid, and the ratio of hydrochloric acid to nitric acid is 4:1. The second mixed solution 561 is sulfuric acid and phosphoric acid, and the ratio of sulfuric acid to phosphoric acid is 2:1.

[0062] In order to connect the test tube 54 and the third infusion tube 55, a second groove 541 is opened on the test tube 54, and a plug 542 is sealed in the second groove 541. An inlet 551 is opened on the third infusion tube 55. A first magnet block 543 is embedded in the plug 542, and a second magnet block 552 matching the first magnet block 543 is embedded in the third infusion tube 55.

[0063] Specifically, when the third infusion tube 55 is inserted into the test tube 54, it will push up the plug 542 in the second groove 541, and the stainless steel solution in the test tube 54 enters the third infusion tube 55 from the inlet 551. After the detection is completed, the second cylinder 554 retracts. Because the first magnet block 543 and the second magnet block 552 are magnetically attracted, it will drive the plug 542 to move downward to block the second groove 541 and seal the test tube 54 for the next detection.

[0064] A third cylinder 59 is installed in the fourth placement space 505, and a beaker 591 and a vision sensor 5901 are bonded to the third cylinder 59. Specifically, when starting the detection, the third cylinder 59 extends so that the beaker 591 is located below the third infusion tube 55 to catch the second stainless steel solution flowing out of the third infusion tube 55.

[0065] Further, an ammonium sulfate solution 571 is stored in the third liquid storage tank 57. A fifth infusion tube 572 is installed on the third liquid storage tank 57, and a second electromagnetic flow valve 573 is installed on the fifth infusion tube 572. The third cylinder 59 retracts to move the beaker 591 below the fifth infusion tube 572. At this time, the second electromagnetic flow valve 573 is opened, and the ammonium sulfate solution 571 flows into the beaker 591 and mixes with the second stainless steel solution to react, oxidizing the Cr in the second stainless steel solution 3+ to Cr 6+ and forming a third stainless steel solution that is red in color.

[0066] It should be noted that Cr 3+ is oxidized to Cr 6+ The process requires boiling the second stainless steel solution to accelerate the oxidation rate. Further, as Figures 3 to 10 shown, a first guide rail 31 is installed in the protective cabinet 3. A first electronic slider 311 is slidably connected to the first guide rail 31. A carrier plate 32 is fixedly installed on the first electronic slider 311. A heat insulation plate 321 is adhered to the carrier plate 32. The detection box 51 is welded to the carrier plate 32. A heat conduction column 593 is installed in the fourth placement space 505. The heat conduction column 593 penetrates through the carrier plate 32 and the heat insulation plate 321.

[0067] Specifically, after the sampling mechanism 4 samples, the first electronic slider 311 slides on the first guide rail 31, so that the heat conduction column 593 moves above the communication pipe 22, and the temperature of the orifice of the communication pipe 22 heats the heat conduction column 593. At this time, the third air cylinder 59 retracts, and the beaker 591 is placed above the heat conduction column 593. The heat conduction column 593 can use the heat of the orifice of the communication pipe 22 to heat the beaker 591, so that the second stainless steel solution boils for 4-6 minutes, accelerating the speed of the second stainless steel solution becoming the third stainless steel solution and improving the detection efficiency.

[0068] It should be noted that in order to improve the accuracy of the detection, it is necessary to cool the third stainless steel in the beaker 591. Further, a titration solution 5021 is contained in the first placement space 502. A second infusion tube 544 is installed on the test tube 54. The second infusion tube 544 is communicated with the first placement space 502. A first electromagnetic flow valve 545 is installed on the second infusion tube 544.

[0069] Specifically, the titration solution 5021 is a mixed liquid of water and N-phenylanthranilic acid. When cooling the third stainless steel solution in the beaker 591, the third air cylinder 59 extends, so that the beaker 591 is located below the third infusion tube 55. Then the first electromagnetic flow valve 545 is opened, so that the titration solution 5021 enters the test tube 54, then flows into the third infusion tube 55, and finally falls into the beaker 591, cooling the third stainless steel solution in the beaker 591. This not only reduces the cooling rate of the third stainless steel solution, but also N-phenylanthranilic acid in the titration solution 5021 can be used as an indicator.

[0070] In addition, because the titration solution 5021 is connected to the conical funnel 52, the titration solution 5021 can also reduce the temperature of the conical funnel 52, so that the liquid stainless steel sprayed on the conical funnel 52 can quickly solidify after splashing, preventing the splashed liquid stainless steel from converging again to form large solid blocks, which affects the dissolution speed in the first mixed solution 531.

[0071] Meanwhile, the titration solution 5021 can also clean the test tube 54 and the third infusion tube 55 to prevent the residues in the test tube 54 and the third infusion tube 55 from affecting the accuracy of the next test result.

[0072] Furthermore, an ammonium ferrous sulfate solution 581 is stored in the fourth liquid storage tank 58. A sixth infusion tube 582 is installed on the fourth liquid storage tank 58, and a third electromagnetic flow valve 583 is installed on the sixth infusion tube 582. After the third stainless steel solution is cooled, the third air cylinder 59 expands and contracts to move the beaker 591 to below the sixth infusion tube 582. The third electromagnetic flow valve 583 is opened, and the ammonium ferrous sulfate solution 581 is dropped into the third stainless steel solution. During the dropping process of the ammonium ferrous sulfate solution 581, the visual sensor 5901 constantly observes the color of the third stainless steel solution. When the third stainless steel solution changes from red to green, the third electromagnetic flow valve 583 is closed, and the total amount of the consumed ammonium ferrous sulfate solution 581 is sent to the intelligent control mechanism 6.

[0073] The intelligent control mechanism 6 calculates based on the total amount of the consumed ammonium ferrous sulfate solution 581, the concentration of the ammonium ferrous sulfate solution 581, and the weight G of the stainless steel sample to obtain the chromium content in the stainless steel. Then the intelligent control mechanism 6 sends the chromium content in the stainless steel in the melting furnace 2 to the feeding mechanism, and the feeding mechanism adds the corresponding chromium to the melting furnace 2 according to the chromium content in the stainless steel in the melting furnace 2 at this time to make up for the chromium content in the stainless steel in the melting furnace 2.

[0074] Specifically, the calculation formula is: Wherein, V is the consumed volume of the titrated ammonium ferrous sulfate solution 581; C is the concentration of the ammonium ferrous sulfate solution 581; G is the weight of the stainless steel sample; X is 0.017 - 0.018.

[0075] During the calculation process of the intelligent control mechanism 6, the second motor 592 is started to drive the third air cylinder 59 to rotate, and the third stainless steel solution in the beaker 591 is poured into the waste liquid box 594 for the next test. Of course, the first electromagnetic flow valve 545 can be opened again to clean the beaker 591 once.

[0076] During use, such as Figures 1 to 12As shown in the figure, the feeding mechanism puts stainless steel waste into the melting furnace 2. The melting furnace 2 starts to melt the stainless steel waste, turning the stainless steel waste into liquid stainless steel. The first cylinder 43 extends to make the sampling box 45 enter the connecting pipe 22. After the sampling box 45 obtains the liquid stainless steel in the connecting pipe 22, the first cylinder 43 retracts, and the first tank body 422 seals the sampling box 45. At this time, the first electronic slider 311 slides on the first guide rail 31, driving the detection mechanism 5 to move in the protection cabinet 3, so that the third through hole 501 on the detection box 51 is aligned with the second through hole 451. Then the first cylinder 43 continues to retract, and the fixed block 421 compresses the liquid stainless steel in the sampling box 45, causing it to spray into the detection box 51 from the second through hole 451. The weighing device 412 sends the weights before and after spraying to the intelligent control mechanism 6, and the intelligent control mechanism 6 calculates the weight of the stainless steel sample in the sampling box 45 to obtain the weight of the stainless steel sample as G.

[0077] The liquid stainless steel sprayed into the detection box 51 splashes on the conical funnel 52. The contact area between the splashing liquid stainless steel and the air becomes larger, and it quickly cools into a solid state in the air and falls into the conical funnel 52, and then falls into the test tube 54 under the guidance of the conical funnel 52.

[0078] The intelligent control mechanism 6 sends a signal according to the weight of the stainless steel sample to control the start of the first metering pump 532, pumping the corresponding volume of the first mixed liquid 531 into the test tube 54 to dissolve the stainless steel to form the first stainless steel solution. At this time, because the stainless steel in the test tube 54 has just solidified and has a relatively high temperature, it will heat the first mixed liquid 531 entering the test tube 54, accelerating its dissolution rate in the first mixed liquid 531.

[0079] The second cylinder 554 starts to extend and drives the third infusion tube 55 to rise. The third infusion tube 55 pushes open the plug 542 in the test tube 54, and the first stainless steel solution in the test tube 54 will enter the test tube 54 from the liquid inlet 551. At the same time, the connecting plate 553 will touch the switch 564, and the second metering pump 562 starts to pump the second mixed liquid 561 according to the weight of the stainless steel sample sent by the intelligent control mechanism 6 and discharges it into the third infusion tube 55 to mix with the first stainless steel solution, removing the nitrogen oxides in the first stainless steel solution to form the second stainless steel solution.

[0080] When the second cylinder 554 extends, the third cylinder 59 also extends to push the beaker 591 under the third infusion tube 55. The second stainless steel solution in the third infusion tube 55 falls into the beaker 591. Then the third cylinder 59 retracts, making the beaker 591 located under the fifth infusion tube 572 and sitting on the heat conducting column 593. At this time, the second electromagnetic flow valve 573 is opened, and the ammonium sulfate solution 571 is dripped into the beaker 591 to oxidize the Cr in the second stainless steel solution 3+ to Cr 6+, forming a third stainless steel solution that is red, and the visual sensor 5901 will constantly detect the chromatogram of the third stainless steel solution when 571 drops of ammonium sulfate solution are dropped.

[0081] In addition, since the sampling box 45 is aligned with the connecting pipe 22 during sampling, the moved detection mechanism 5 is located above the connecting pipe 22, and the heat emitted from the orifice of the connecting pipe 22 heats the heat conducting column 593, so that the heat can be transferred to the beaker 591, accelerating the oxidation process and shortening the oxidation time.

[0082] After the third stainless steel solution in the beaker 591 is heated for 4 - 6 minutes, the first motor 231 starts to control the heat insulation cover 23 to close the connecting pipe 22. At the same time, the third cylinder 59 extends, so that the beaker 591 returns to the lower part of the third infusion pipe 55 again. Then the first electromagnetic flow valve 545 is opened, and the titration solution 5021 in the first placement space 502 enters the third infusion pipe 55 and finally flows into the beaker 591 to cool the third stainless steel solution in the beaker 591 and is used as an indicator at the same time. And the titration solution 5021 can also clean the test tube 54 and the third infusion pipe 55 to ensure that the next test result is not affected by the previous one.

[0083] After the third stainless steel solution in the beaker 591 is cooled, the third cylinder 59 retracts, so that the beaker 591 is located below the sixth infusion pipe 582. The third electromagnetic flow valve 583 is opened, and the ammonium ferrous sulfate solution 581 will be dropped into the beaker 591 through the sixth infusion pipe 582. At this time, the visual sensor 5901 observes the chromatogram of the third stainless steel solution in the beaker 591, and the third electromagnetic flow valve 583 measures the total amount of the ammonium ferrous sulfate solution 581 dropped into the beaker 591 until the third stainless steel solution turns green, then the third electromagnetic flow valve 583 is closed. The intelligent control mechanism 6 receives the consumption amount of the ammonium ferrous sulfate solution 581, and calculates according to the concentration consumption amount of the ammonium ferrous sulfate solution 581 and the weight of the stainless steel sample to obtain the chromium content in the sample stainless steel, and then controls the feeding mechanism to add the corresponding chromium into the melting furnace 2 according to this content.

[0084] Of course, because the size of the sampling box 45 is fixed, the weight of the sample taken out each time will also be the same. In order to improve the test result, each time the ammonium ferrous sulfate solution 581 is added to the fourth liquid storage tank 58, a blank test can be done for data comparison. After the test, subtracting the ammonium ferrous sulfate solution 581 consumed in the blank test from the ammonium ferrous sulfate solution 581 consumed with the sample will result in a more accurate result.

[0085] Compared with the prior art, a stainless steel plate production device and production method of the present invention can accurately measure the chromium content in stainless steel waste during the refining process, and add an appropriate amount of chromium to the melting furnace according to the measurement results, so as to ensure that the produced stainless steel plate reaches the appropriate chromium content, avoiding product quality problems and safety risks caused by insufficient or excessive chromium elements.

[0086] A stainless steel plate production method includes the following steps:

[0087] S1. Melting: Add stainless steel waste into the melting furnace 2 through the feeding mechanism, and the melting furnace 2 melts the stainless steel waste to make it in a liquid state;

[0088] S2. Sampling: The sampling mechanism 4 takes out the liquid stainless steel in the melting furnace 2. As the first cylinder 43 continuously retracts, the sampling box 45 gradually enters the first tank 422, and the liquid stainless steel in the sampling box 45 is ejected from the second through-hole 451 through the extrusion of the fixing block 421 and enters the detection mechanism 5;

[0089] S3. Detection: The stainless steel solution entering the detection mechanism 5 is sprayed on the conical funnel 52 to form particles that solidify and fall into the test tube 54. Inject the first mixed solution 531 into the test tube 54 to dissolve the stainless steel particles into a solution and then discharge it into the beaker 591. Add the second mixed solution 561 to the beaker 591 to remove nitrogen oxides, and then add ammonium sulfate solution 571 to make the solution turn red, so that the Cr 3+ is converted to Cr 6+ , add ammonium ferrous sulfate solution 581 to make the solution turn green and record the consumption of ammonium ferrous sulfate solution 581;

[0090] S4. Calculation: Calculate the chromium element content in the stainless steel according to the consumption of ammonium ferrous sulfate solution 581;

[0091] S5. Feeding: Supplement the corresponding chromium to the melting furnace 2 according to the measured chromium element content.

[0092] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present invention. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0093] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A stainless steel plate production device, comprising a frame body, a smelting furnace is installed on the frame body, a steel outlet and a feeding pipe are installed on the smelting furnace, the feeding pipe is communicated with a feeding mechanism, and it is characterized in that, A connecting pipe is fixedly connected to the smelting furnace, a protective cabinet is installed on the frame body, a first through hole matching the connecting pipe is provided on the protective cabinet, and the protective cabinet is internally provided with: A sampling mechanism, the sampling mechanism includes a sleeve, a fixing block is integrally formed on the sleeve, a first cylinder is installed in the sampling mechanism, a sliding block is fixedly connected to the first cylinder, a connecting frame is fixedly connected to the sliding block, the connecting frame penetrates through the fixing block, a sampling box is fixedly connected to the end of the connecting frame away from the sliding block, a second through hole is provided on the sampling box, and a first groove body matching the sampling box is provided on the fixing block; A detection mechanism for detecting the chromium content in the stainless steel in the sampling box; An intelligent control mechanism for controlling the sampling mechanism, the detection mechanism and the feeding mechanism.

2. The stainless steel plate production device according to claim 1, characterized in that, A second guide rail is installed on the sampling mechanism, a second electronic slider is slidably connected to the second guide rail, a weighing device is provided on the second electronic slider, and the sleeve is fixedly installed on the weighing device.

3. A stainless steel plate production device according to claim 1, characterized in that, The aperture of the second through hole is 0.8-1.5 mm, and a convex block matching the second through hole is integrally formed on the fixing block.

4. A stainless steel plate production device according to claim 2, characterized in that, The detection mechanism includes a detection box, a third through hole matching the second through hole is provided on the detection box, and a first placement space, a second placement space, a third placement space and a fourth placement space are provided in the detection box; A conical funnel is installed in the first placement space, and the conical funnel is communicated with the second placement space; A first liquid storage tank is provided in the second placement space, a first mixed liquid is stored in the first liquid storage tank, a first metering pump is installed on the first liquid storage tank, a first infusion pipe is installed on the first metering pump, and a test tube is fixedly connected to the first infusion pipe; A second liquid storage tank, a third liquid storage tank and a fourth liquid storage tank are provided in the third placement space; a second mixed liquid is stored in the second liquid storage tank, a second metering pump is installed on the second liquid storage tank, a fourth infusion pipe and a switch are installed on the second metering pump, a third infusion pipe is fixedly installed on the fourth infusion pipe, a connecting plate is fixedly connected to the third infusion pipe, and a second cylinder matching the connecting plate is installed in the third placement space; an ammonium sulfate solution is stored in the third liquid storage tank, a fifth infusion pipe is installed on the third liquid storage tank, and a second electromagnetic flow valve is installed on the fifth infusion pipe; an ammonium ferrous sulfate solution is stored in the fourth liquid storage tank, a sixth infusion pipe is installed on the fourth liquid storage tank, and a third electromagnetic flow valve is installed on the sixth infusion pipe; A third cylinder is installed in the fourth placement space, and a beaker and a vision sensor are fixedly connected to the third cylinder.

5. An apparatus for producing stainless steel plates according to claim 4, characterized in that, A second groove body is provided on the test tube, a plug body is sealed in the second groove body, a liquid inlet is provided on the third infusion pipe, a first magnet block is embedded in the plug body, and a second magnet block matching the first magnet block is embedded in the third infusion pipe.

6. The stainless steel plate production device according to claim 4, characterized in that, The first mixed liquid is hydrochloric acid and nitric acid, and the ratio of hydrochloric acid to nitric acid is 4:

1. The second mixed liquid is sulfuric acid and phosphoric acid, and the ratio of sulfuric acid to phosphoric acid is 2:

1.

7. An apparatus for producing a stainless steel plate according to claim 4, characterized in that, A first guide rail is fixedly connected inside the protective cabinet. A first electronic slider is slidably connected to the first guide rail. A bearing plate is fixedly connected to the first electronic slider. A heat insulation plate is fixedly connected to the bearing plate. The detection box is fixedly connected to the bearing plate. A heat conduction column is installed in the fourth placement space, and the heat conduction column penetrates through the bearing plate and the heat insulation plate.

8. An apparatus for producing stainless steel plates according to claim 7, characterized in that, A titration solution is contained in the first placement space. A second infusion tube is installed on the test tube. The second infusion tube is communicated with the first placement space. A first electromagnetic flow valve is installed on the second infusion tube.

9. The stainless steel plate production device according to claim 7, characterized in that, A heat insulation cover is installed on the communicating pipe. A first motor is installed on the heat insulation cover.

10. A method for producing a stainless steel plate, characterized in that, It includes the following steps: S1. Melting: Add stainless steel waste products into the melting furnace through the feeding mechanism. The melting furnace melts the stainless steel waste products to make them in a liquid state. S2. Sampling: The sampling mechanism takes out the liquid stainless steel in the melting furnace. As the first air cylinder continuously retracts, the sampling box gradually enters the first groove body. The liquid stainless steel in the sampling box is ejected from the second through hole under the extrusion of the fixed block and enters the detection mechanism. S3. Detection: The stainless steel solution entering the detection mechanism is sprayed onto the conical funnel to form solidified particles that fall into the test tube. The first mixed solution is injected into the test tube to dissolve the stainless steel particles into a solution, which is then discharged into the beaker. The second mixed solution is added to the beaker to remove nitrogen oxides, and then ammonium sulfate solution is added to make the solution turn red, converting Cr 3+ in the solution into Cr 6 + . Ammonium ferrous sulfate solution is added to make the solution turn green and record the flow rate of the ammonium ferrous sulfate solution; S4. Calculation: Calculate the content of chromium element in the stainless steel according to the consumption of the ammonium ferrous sulfate solution. S5. Feeding: Supplement the corresponding chromium into the melting furnace according to the measured content of chromium element.

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