A stainless steel sheet production device and a production method

Abstract

The application discloses a stainless steel plate production device and a production method, and relates to the technical field of stainless steel plate production devices, wherein the stainless steel plate production device comprises a frame body, a smelting furnace is installed on the frame body, a tapping hole and a feeding pipe are installed on the smelting furnace, the feeding pipe is connected with a feeding mechanism, a connecting pipe is fixedly connected to the smelting furnace, a protection cabinet is installed on the frame body, a first through hole matched with the connecting 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. The stainless steel plate production device and the production method can accurately measure the chromium content in stainless steel waste during smelting of the stainless steel waste, add a corresponding amount of chromium into the smelting furnace according to the measurement result, and thus ensure that the produced stainless steel plate reaches a proper chromium content, and product quality problems and safety risks caused by insufficient or excessive chromium elements are avoided.

Description

TECHNICAL FIELD

[0001] The present application 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

[0002] With the continuous consumption of energy and ore, the state pays more and more attention to the development index of waste recycling, especially the recycling and reuse of stainless steel. By recycling waste stainless steel, not only the mining of iron ore can be greatly reduced, but also the production cost can be greatly reduced. When stainless steel is exposed to air, a very thin but dense chromium oxide film will quickly form on its surface, providing protection. When this film is damaged, chromium elements will migrate to the damaged area to re-form a passivation film, achieving self-repair.

[0003] However, when recycling waste stainless steel, the chromium element will be reduced due to different degrees of consumption, and the waste also contains impurities, which need to be treated by pickling, washing, polishing and decontamination. Therefore, when refining again, it is difficult to accurately determine the chromium content in the stainless steel. If the added chromium element is insufficient, the corrosion resistance of the stainless steel plate will be affected, which does not meet the use requirements; if too much chromium element is added, it may cause users to have skin itching, allergy, headache, dizziness, nausea, vomiting and other symptoms when contacting the stainless steel, and even may induce serious health problems such as cancer. Although the traditional stainless steel recycling method can reduce the dependence on iron ore, there is uncertainty in the addition of chromium elements, which is easy 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 section is only intended to increase an understanding of the general context in which the present application can be practiced. It should not be taken as an acknowledgement or any form of suggestion that this information forms prior art that is already known in any form. SUMMARY

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

[0007] In order to achieve the above object, a stainless steel plate production device is provided in a specific embodiment of the present application, which comprises a frame body, a smelting furnace is installed on the frame body, a tapping hole and a feeding pipe are installed on the smelting furnace, the feeding pipe is communicated with a feeding mechanism, a communicating pipe is fixedly connected to the smelting furnace, a protection cabinet is installed on the frame body, a first through hole matched with the communicating pipe is arranged on the protection cabinet, a sampling mechanism, a detection mechanism and an intelligent control mechanism are arranged in the protection cabinet, the sampling mechanism comprises a sleeve, a fixed 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 fixed block, a sampling box is fixedly connected to one end of the connecting frame away from the sliding block, a second through hole is arranged on the sampling box, and a first groove matched with the sampling box is arranged on the fixed block; the detection mechanism is used for detecting the content of chromium in the stainless steel in the sampling box; and the intelligent control mechanism is used for controlling the sampling mechanism, the detection mechanism and the feeding mechanism.

[0008] In one or more embodiments of the present application, a second guide rail is installed on the sampling mechanism, a second electronic sliding block is slidably connected to the second guide rail, and a weighing device is arranged on the second electronic sliding block.

[0009] In one or more embodiments of the present application, the aperture of the second through hole is 0.8-1.5 mm, and a protruding block matched with the second through hole is integrally formed on the fixed block.

[0010] In one or more embodiments of the present application, the detection mechanism comprises a detection box, a third through hole matched with the second through hole is arranged on the detection box, and 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, and 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 solution is stored in the first liquid storage tank, a first metering pump is installed on the first liquid storage tank, a first infusion tube is installed on the first metering pump, and a test tube is fixedly connected to the first infusion tube.

[0013] The third placement space is internally 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 solution, and 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; a second cylinder matched with the connecting plate is installed in the third placement space; the third liquid storage tank stores an ammonium persulfate solution, and 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, and 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] The fourth placement space is internally provided with a third cylinder, and a beaker and a visual sensor are fixedly connected to the third cylinder.

[0015] In one or more embodiments of the present application, a second groove is formed in the test tube, and a plug 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; and a second magnet block matched with the first magnet block is embedded in the third infusion tube.

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

[0017] In one or more embodiments of the present application, a first guide rail is fixedly connected to the protective cabinet, a first electronic sliding block is slidingly connected to the first guide rail, a bearing plate is fixedly connected to the first electronic sliding block, a thermal insulation plate is fixedly connected to the bearing plate, and the detection box is fixedly connected to the bearing plate; a heat-conducting column is installed in the fourth placement space, and the heat-conducting column penetrates through the bearing plate and the thermal insulation plate.

[0018] In one or more embodiments of the present application, 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 in communication 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 application, a thermal insulation cover is installed on the communication pipe, and a first motor is installed on the thermal insulation cover.

[0020] In order to achieve the above-mentioned purpose, a stainless steel plate production method is provided in a specific embodiment of the present application, which comprises the following steps:

[0021] S1, smelting: through the feeding mechanism to smelting furnace adds stainless steel waste, smelting furnace smelts stainless steel waste, and makes the stainless steel waste into liquid state;

[0022] S2, sampling: the sampling mechanism takes out the liquid stainless steel in the smelting furnace, and with the continuous retraction of the first cylinder, the sampling box gradually enters the first groove, and the liquid stainless steel in the sampling box is sprayed from the second through hole and enters the detection mechanism under the extrusion of the fixed block;

[0023] S3, detection: the stainless steel solution entering the detection mechanism is sprayed on the conical funnel to form granular solidification and falls into the test tube, the first mixed solution is injected into the test tube, the stainless steel particles are dissolved into solution and discharged into the beaker, the second mixed solution is added to remove nitrogen oxides, then the ammonium persulfate solution is added to make the solution red, and Cr 3+ is converted into Cr 6+ , the ferrous ammonium sulfate solution is added to make the solution green, and the flow of the ferrous ammonium sulfate solution is recorded;

[0024] S4, calculation: the content of chromium element in the stainless steel is calculated according to the consumption of ferrous ammonium sulfate solution;

[0025] S5, feeding: according to the calculated content of chromium element, the corresponding chromium is supplemented into the smelting furnace.

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

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

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

[0029] Figure 2 It is a partial sectional view of a stainless steel plate production device in an embodiment of the present application; Figure 1 ;

[0030] Figure 3A partial cross-sectional view of a stainless steel plate production device in an embodiment of the present application Figure 2 ;

[0031] Figure 4 A structural schematic view of A in the embodiment of the present application Figure 3

[0032] Figure 5 A partial cross-sectional view of a stainless steel plate production device in an embodiment of the present application

[0033] Figure 6 A partial cross-sectional view of a sampling mechanism of a stainless steel plate production device in an embodiment of the present application

[0034] Figure 7 A cross-sectional view of a detection mechanism of a stainless steel plate production device in an embodiment of the present application Figure 1 ;

[0035] Figure 8 A cross-sectional view of a detection mechanism of a stainless steel plate production device in an embodiment of the present application Figure 2 ;

[0036] Figure 9 A structural schematic view of B in the embodiment of the present application Figure 8

[0037] Figure 10 A structural schematic view of C in the embodiment of the present application Figure 8

[0038] Figure 11 A structural schematic view of D in the embodiment of the present application Figure 8

[0039] Figure 12 A structural schematic view of E in the embodiment of the present application Figure 11

[0040] Figure 13 A partial cross-sectional view of a stainless steel plate production device in an embodiment of the present application

[0041] Main figure mark explanation:

[0042] ​​​​​1, frame body; 2, smelting furnace; 21, tapping hole; 22, connecting pipe; 23, temperature 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, temperature insulation plate; 4, sampling mechanism; 41, second guide rail; 411, second electronic slider; 412, weighing device; 42, sleeve; 421, fixed block; 422, first groove body; 423, protruding block; 43, first air 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 tube; 54, test tube; 541, second groove body; 542, plug body; 543, first magnet block; 544, second infusion tube; 545, first electromagnetic flow valve; 55, third infusion tube; 551, liquid inlet; 552, second magnet block; 553, connecting plate; 554, second air cylinder; 56, second liquid storage tank; 561, second mixed solution; 562, second metering pump; 563, fourth infusion tube; 564, switch; 57, third liquid storage tank; 571, ammonium persulfate solution; 572, fifth infusion tube; 573, second electromagnetic flow valve; 58, fourth liquid storage tank; 581, ferrous ammonium sulfate solution; 582, sixth infusion tube; 583, third electromagnetic flow valve; 59, third air cylinder; 591, beaker; 5901, visual sensor; 592, second motor; 593, heat-conducting column; 594, waste liquid box; 6, intelligent control mechanism. DETAILED DESCRIPTION

[0043] In order for those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

[0044] As Figures 1 to 4As shown, the stainless steel plate production device in an embodiment of the present application comprises a frame body 1, a smelting furnace 2 is installed on the frame body 1, a tapping hole 21 and a feeding pipe 24 are installed on the smelting furnace 2, the feeding pipe 24 is communicated with a feeding mechanism. The smelting furnace 2 is integrally formed with a communicating pipe 22, a protection cabinet 3 is installed on the frame body 1, and the protection cabinet 3 is provided with a first through hole 301 matched with the communicating pipe 22. A sampling mechanism 4, a detection mechanism 5 and an intelligent control mechanism 6 are arranged in the protection cabinet 3, and the intelligent control mechanism 6 is used for controlling the sampling mechanism 4, the detection mechanism 5 and the feeding mechanism.

[0045] When producing stainless steel, the stainless steel waste is added into the smelting furnace 2 through the feeding mechanism, the smelting furnace 2 melts the stainless steel waste to make it into liquid, and the liquid stainless steel in the smelting furnace 2 is sampled through the sampling mechanism 4.

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

[0047] Specifically, the second through hole 451 has a hole diameter of 1.5 mm, when sampling, the first cylinder 43 is started to extend, so that the connecting frame 44 enters the communicating pipe 22, and the sampling box 45 on the connecting frame 44 is immersed in the liquid stainless steel in the communicating pipe 22. Then the first cylinder 43 is retracted, and the connecting frame 44 is also retracted into the protection cabinet 3. During the retraction of the connecting frame 44, the liquid stainless steel in the sampling box 45 will slowly flow out of the second through hole 451 due to gravity and fall back into the communicating pipe 22. With the gradual retraction of the first cylinder 43, the sampling box 45 will enter the first groove 422, and the lower end surface of the fixing block 421 will seal the inner diameter of the sampling box 45 at this time. The liquid stainless steel is caused by air pressure, and as long as the first cylinder 43 does not continue to retract, the liquid stainless steel in the sampling box 45 will not leak out of the second through hole 451.

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

[0049] After sampling, the sampling box 45 travels to the upper side of the detection mechanism 5 through the second electronic slide 411, and the first cylinder 43 is retracted again. The sampling box 45 gradually enters the first groove 422. In this process, the first groove 422 compresses the liquid stainless steel in the sampling box 45, and the liquid stainless steel in the sampling box 45 is sprayed into the detection mechanism 5 from the second through hole 451, and the sampling work is completed. At this time, the weighing device 412 records the weight as G2, and G1 minus G2 is equal to G, which is the weight of the sampled stainless steel. The intelligent control mechanism 6 receives the weight of the stainless steel sample as analysis data for storage.

[0050] In addition, the aperture of the second through hole 451 can also be 0.8 mm. In this way, during the retraction of the connecting frame 44, the liquid stainless steel in the sampling box 45 will not flow out of the second through hole 451 due to surface tension. However, this will result in more stainless steel samples in the sampling box 45, and more consumables for later detection.

[0051] It is worth noting that the melting temperature of the connecting frame 44 and the sampling box 45 is higher than the temperature of the stainless steel in the molten state, which prevents the sampling from melting itself. Preferably, the connecting frame 44 and the sampling box 45 are made of tungsten metal, which has a melting point 1900℃ higher than that of stainless steel, so it will not melt during sampling.

[0052] In addition, the sampling box 45 needs to be soaked in the communication pipe 22 for more than 35 seconds during sampling, so that the temperature of the sampling box 45 is consistent with the temperature of the liquid stainless steel in the communication pipe 22, preventing the liquid stainless steel in the sampling box 45 from solidifying too quickly in a short time.

[0053] Further, the fixing block 421 is integrally formed with a protrusion 423 matching the second through hole 451. When the sampling box 45 enters the first groove 422, the protrusion 423 is inserted into the second through hole 451, preventing residual in the second through hole 451, which would cause the next sampling to mix with the residual stainless steel from this time, resulting in inaccurate detection results.

[0054] It is worth noting that when the sampling box 45 is sampling, the high temperature at the opening of the communication pipe 22 also enters the protection cabinet 3 from the first through hole 301, and the temperature in the protection cabinet 3 also rises, preventing the liquid stainless steel in the sampling box 45 from solidifying too quickly in winter.

[0055] Furthermore, a heat-insulating cover 23 is installed on the connecting pipe 22, and a first motor 231 is installed on the heat-insulating cover 23. When not sampling, the first motor 231 covers the connecting pipe 22 to prevent the continuous high temperature at the opening of the connecting pipe 22 from affecting the intelligent control mechanism 6 inside the protective cabinet 3. During sampling, the first motor 231 controls the heat-insulating cover 23 to rotate, opening the connecting pipe 22 to facilitate sampling.

[0056] like Figures 7 to 13 As shown, the testing mechanism 5 includes a testing box 51, which has a third through hole 501 that matches the second through hole 451. The testing box 51 has a first placement space 502, a second placement space 503, a third placement space 504 and a fourth placement space 505 inside.

[0057] Specifically, a conical funnel 52 is installed in the first placement space 502, and the tip of the conical funnel 52 is connected to the second placement space 503. Due to the small diameter of the second through hole 451, the liquid stainless steel in the sampling box 45 is pressurized by the fixing block 421 and sprayed from the second through hole 451 onto the conical funnel 52, which will cause splashing. After splashing, the liquid stainless steel solidifies upon contact with air, forming tiny steel beads. These tiny steel beads fall from the conical funnel 52 into the second placement space 503.

[0058] The second placement space 503 is equipped with a first storage tank 53 containing a first mixed solution 531. A first metering pump 532 is mounted on the first storage tank 53, and a first delivery tube 533 is attached to the first metering pump 532. A test tube 54 is fixedly connected to the first delivery tube 533. Specifically, the opening of the test tube 54 matches the opening of the conical funnel 52. Steel beads falling from the conical funnel 52 into the second placement space 503 enter the test tube 54. At this time, the first metering pump 532 operates, drawing the first mixed solution 531 from the first storage tank 53 and allowing it to enter the test tube 54 to dissolve the stainless steel beads inside. Because the freshly solidified stainless steel is at a high temperature, it heats the first mixed solution 531 entering the test tube 54, increasing the dissolution rate and thus accelerating the overall detection efficiency.

[0059] The third placement space 504 is equipped with a second liquid storage tank 56, a third liquid storage tank 57, and a fourth liquid storage tank 58. The second liquid storage tank 56 stores a second mixture 561. A second metering pump 562 is installed on the second liquid storage tank 56. A fourth infusion pipe 563 and a switch 564 are installed on the second metering pump 562. A third infusion pipe 55 is fixedly installed on the fourth infusion pipe 563. A connecting plate 553 is adhered to the third infusion pipe 55. A second cylinder 554 that matches the connecting plate 553 is installed in the third placement space 504.

[0060] Specifically, the stainless steel in the test tube 54 is dissolved to form a first stainless steel solution. The second cylinder 554 is activated to extend the connecting plate 553, so that the third infusion tube 55 is connected to the test tube 54, and the stainless steel solution in the test tube 54 flows into the third infusion tube 55. At this time, the connecting plate 553 is just pressed on the switch 564, and a signal is transmitted to the second metering pump 562. The second metering pump 562 is also activated to inject the second mixed solution 561 in the second storage tank 56 into the third infusion tube 55. When the second mixed solution 561 flows into the third infusion tube 55, it is mixed with the stainless steel solution in the third infusion tube 55 to remove the nitrogen oxides in the first stainless steel solution, so as to form a 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 realize the communication between the test tube 54 and the third infusion tube 55, a second groove 541 is arranged on the test tube 54, and a plug 542 is arranged in the second groove 541. An inlet 551 is arranged on the third infusion tube 55, the first magnet block 543 is embedded in the plug 542, and the second magnet block 552 matched with 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, the plug 542 in the second groove 541 is lifted, and the stainless steel solution in the test tube 54 flows into the third infusion tube 55 through the inlet 551. After detection, the second cylinder 554 is retracted, and because the first magnet block 543 and the second magnet block 552 are magnetically attracted, the plug 542 is moved downward to block the test tube 54, so as to facilitate the next detection.

[0064] The third cylinder 59 is installed in the fourth placement space 505, and the beaker 591 and the visual sensor 5901 are attached to the third cylinder 59. Specifically, when the detection starts, the third cylinder 59 is extended to make the beaker 591 located below the third infusion tube 55, and the second stainless steel solution flowing out of the third infusion tube 55 is caught.

[0065] Further, the third storage tank 57 stores the ammonium persulfate solution 571, the fifth infusion tube 572 is installed on the third storage tank 57, and the second electromagnetic flow valve 573 is installed on the fifth infusion tube 572. When the third cylinder 59 is retracted to move the beaker 591 to below the fifth infusion tube 572, the second electromagnetic flow valve 573 is opened, the ammonium persulfate solution 571 flows into the beaker 591, and the second stainless steel solution is mixed and reacted to oxidize Cr 3+ to Cr 6+, the third stainless steel solution is formed into a red color.

[0066] It is worth noting that Cr 3+ oxidation to Cr 6+ The process requires boiling the second stainless steel solution to speed up the oxidation rate, further, as Figures 3 to 10 shown, the first guide rail 31 is installed in the protection cabinet 3, the first electronic slide block 311 is slidably connected on the first guide rail 31, the bearing plate 32 is fixedly installed on the first electronic slide block 311, and the heat insulation plate 321 is bonded on the bearing plate 32. The detection box 51 is welded on the bearing plate 32, and the heat-conducting column 593 is installed in the fourth placement space 505, and the heat-conducting column 593 penetrates the bearing plate 32 and the heat insulation plate 321.

[0067] Specifically, after sampling by the sampling mechanism 4, the first electronic slide block 311 slides on the first guide rail 31, so that the heat-conducting column 593 moves to the upper side of the communication pipe 22, and the temperature of the pipe opening of the communication pipe 22 heats the heat-conducting column 593. At this time, the third cylinder 59 is retracted, and the beaker 591 is placed above the heat-conducting column 593, so that the heat-conducting column 593 can heat the beaker 591 using the heat of the pipe opening of the communication pipe 22, so that the second stainless steel solution boils for 4-6 minutes, speeds up the speed of the second stainless steel solution becoming the third stainless steel solution, and improves the detection efficiency.

[0068] It is worth noting that in order to improve the accuracy of the detection, the third stainless steel in the beaker 591 needs to be cooled. Further, the first placement space 502 is provided with a titration solution 5021, the test tube 54 is provided with a second infusion tube 544, the second infusion tube 544 is connected with the first placement space 502, and the second infusion tube 544 is provided with a first electromagnetic flow valve 545.

[0069] Specifically, the titration solution 5021 is a mixed liquid of water and N-phenyl o-amino benzoic acid, and when the third stainless steel solution in the beaker 591 is cooled, the third cylinder 59 is elongated, 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, thereby cooling the third stainless steel solution in the beaker 591. Not only will it reduce the cooling speed of the third stainless steel solution, but also the N-phenyl o-amino benzoic acid in the titration solution 5021 can be used as an indicator.

[0070] In addition, because the titration solution 5021 is connected with 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 liquid stainless steel after splashing from gathering again to form a large block of solid, affecting the speed of dissolving in the first mixed liquid 531.

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

[0072] Further, the fourth liquid storage tank 58 stores ferrous ammonium sulfate solution 581, the sixth infusion tube 582 is installed on the fourth liquid storage tank 58, and the third electromagnetic flow valve 583 is installed on the sixth infusion tube 582. After the third stainless steel solution is cooled, the third pneumatic cylinder 59 is extended and retracted to move the beaker 591 to below the sixth infusion tube 582, the third electromagnetic flow valve 583 is opened, and the ferrous ammonium sulfate solution 581 is dropped into the third stainless steel solution. During the dropping of the ferrous ammonium sulfate solution 581, the visual sensor 5901 constantly observes the color of the third stainless steel solution, and 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 ferrous ammonium sulfate solution 581 is sent to the intelligent control mechanism 6.

[0073] The intelligent control mechanism 6 calculates the chromium content in the stainless steel according to the total amount of the consumed ferrous ammonium sulfate solution 581, the concentration of the ferrous ammonium sulfate solution 581, and the weight G of the stainless steel sample. Then, the intelligent control mechanism 6 sends the chromium content in the stainless steel in the smelting furnace 2 to the feeding mechanism, and the feeding mechanism adds corresponding chromium into the smelting furnace 2 according to the chromium content in the stainless steel in the smelting furnace 2 at this time, so as to supplement the chromium content in the stainless steel in the smelting furnace 2.

[0074] Specifically, the calculation formula is as follows: wherein V is the volume of the consumed titration ferrous ammonium sulfate solution 581, C is the concentration of the ferrous ammonium sulfate solution 581, G is the weight of the stainless steel sample, and X is 0.017-0.018.

[0075] During the calculation of the intelligent control mechanism 6, the second motor 592 is started to drive the third pneumatic cylinder 59 to rotate, so as to pour the third stainless steel solution in the beaker 591 into the waste liquid box 594, thereby facilitating the next detection. Of course, the first electromagnetic flow valve 545 can be opened again to clean the beaker 591.

[0076] In use, for example, Figures 1 to 12As shown, the feeding mechanism puts the stainless steel waste into the smelting furnace 2, and the smelting furnace 2 starts to melt the stainless steel waste, so that the stainless steel waste becomes liquid stainless steel. The first cylinder 43 is extended to make the sampling box 45 enter the communicating pipe 22, and the sampling box 45 obtains the liquid stainless steel in the communicating pipe 22. Then the first cylinder 43 is retracted to seal the sampling box 45 by the first groove body 422. At this time, the first electronic sliding block 311 slides on the first guide rail 31 to drive 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 is continuously retracted, and the fixing block 421 compresses the liquid stainless steel in the sampling box 45, so that the liquid stainless steel is sprayed into the detection box 51 from the second through hole 451. The weighing device 412 sends the weight before and after the 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, and the contact area of the splashed liquid stainless steel and air becomes larger, so that the liquid stainless steel is rapidly cooled into a solid state in the air and falls into the test tube 54 through the conical funnel 52.

[0078] The intelligent control mechanism 6 sends a signal to control the first metering pump 532 to start according to the weight of the stainless steel sample, so that a corresponding volume of the first mixed liquid 531 is drawn into the test tube 54 to dissolve the stainless steel to form a first stainless steel solution. At this time, because the solidification temperature of the stainless steel in the test tube 54 is relatively high, the first mixed liquid 531 entering the test tube 54 is heated, and the dissolution speed of the stainless steel in the first mixed liquid 531 is accelerated.

[0079] The second cylinder 554 is started to be extended to drive the third liquid delivery pipe 55 to rise, and the third liquid delivery pipe 55 pushes away the plug body 542 in the test tube 54. The first stainless steel solution in the test tube 54 enters the test tube 54 from the liquid inlet 551. At the same time, the connecting plate 553 touches the switch 564, and the second metering pump 562 draws the second mixed liquid 561 according to the weight of the stainless steel sample received by the intelligent control mechanism 6 and discharges the second mixed liquid 561 into the third liquid delivery pipe 55 to mix with the first stainless steel solution, so that the nitrogen oxides in the first stainless steel solution are removed to form a second stainless steel solution.

[0080] When the second cylinder 554 is extended, the third cylinder 59 is also extended to push the beaker 591 to the lower side of the third liquid delivery pipe 55, and the second stainless steel solution in the third liquid delivery pipe 55 falls into the beaker 591. Then the third cylinder 59 is retracted, so that the beaker 591 is located below the fifth liquid delivery pipe 572 and is seated on the heat-conducting column 593. At this time, the second electromagnetic flow valve 573 is opened to drip the ammonium persulfate solution 571 into the beaker 591, so that Cr 3+ in the second stainless steel solution is oxidized to Cr 6+, the third stainless steel solution is formed into a red color, and the visual sensor 5901 will detect the color spectrum of the third stainless steel solution at all times as the ammonium persulfate solution 571 is being dropped.

[0081] In addition, because the sampling box 45 is aligned with the communication pipe 22 when sampling, the moved detection mechanism 5 is located above the communication pipe 22, and the heat emitted from the mouth of the communication pipe 22 heats the heat-conducting column 593, thereby transferring heat 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 temperature-insulating cover 23 to close the communication pipe 22. At the same time, the third cylinder 59 is extended, so that the beaker 591 returns to below the third infusion pipe 55, then the first electromagnetic flow valve 545 is opened, 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 also serves as an indicator. In addition, the titration solution 5021 can also clean the test tube 54 and the third infusion pipe 55, so as to ensure that the detection result of the next time is not affected by the previous time.

[0083] After the third stainless steel solution in the beaker 591 is cooled, the third cylinder 59 is retracted, 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 drop into the beaker 591 through the sixth infusion pipe 582. At this time, the visual sensor 5901 observes the color spectrum of the third stainless steel solution in the beaker 591, 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, 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 the chromium content in the sample stainless steel according to the concentration consumption amount of the ammonium ferrous sulfate solution 581 and the weight of the stainless steel sample, and then controls the feeding mechanism to add the corresponding chromium into the smelting furnace 2 according to the content.

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

[0085] Compared with the prior art, the stainless steel plate production device and production method can ensure that the produced stainless steel plate reaches a proper chromium content by accurately measuring the chromium content in the stainless steel waste, adding a corresponding amount of chromium into the smelting furnace according to the measurement result, and avoiding product quality problems and safety risks caused by insufficient or excessive chromium elements.

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

[0087] S1, smelting: adding stainless steel waste into the smelting furnace 2 through the feeding mechanism, and smelting the stainless steel waste in the smelting furnace 2 to make the stainless steel waste into a liquid state;

[0088] S2, sampling: the sampling mechanism 4 takes out the liquid stainless steel in the smelting furnace 2, and the sampling box 45 gradually enters the first groove body 422 as the first cylinder 43 continuously retracts, and the liquid stainless steel in the sampling box 45 is sprayed out of the second through hole 451 and enters the detection mechanism 5 through the extrusion of the fixed block 421;

[0089] S3, detection: the stainless steel solution entering the detection mechanism 5 is sprayed on the conical funnel 52 to form granular solidification and fall into the test tube 54, the first mixed solution 531 is injected into the test tube 54, the stainless steel particles are dissolved into a solution and discharged into the beaker 591, the second mixed solution 561 is added into the beaker 591 to remove nitrogen oxides, then the ammonium persulfate solution 571 is added to make the solution red, and the Cr 3+ in the solution is converted into Cr 6+ , the ferrous ammonium sulfate solution 581 is added to make the solution green and record the consumption of the ferrous ammonium sulfate solution 581;

[0090] S4, calculation: calculating the chromium content in the stainless steel according to the consumption of the ferrous ammonium sulfate solution 581;

[0091] S5, feeding: supplementing a corresponding amount of chromium into the smelting furnace 2 according to the calculated chromium content.

[0092] It is apparent to those skilled in the art that the present application is not limited to the details of the foregoing exemplary embodiments, but can be implemented in other concrete forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be considered in all respects as illustrative and not restrictive, and the scope of the present application is defined by the appended claims rather than the foregoing description, and it is intended to encompass all changes falling within the meaning and scope of equivalents of the claims. Any reference signs in the claims should not be considered as limiting the claims involved.

[0093] Furthermore, it should be understood that although the specification is described in terms of embodiments, not every embodiment includes every feature described. The specification can include implicit combinations of explicitly mentioned features and / or explicit combinations of implicitely mentioned features. Each embodiment depends on the explicit combinations of features and / or the implicit combinations of features made specifically within that embodiment, and each such embodiment can be combined with every other such embodiment to create further embodiments.

Claims

1. A stainless steel plate production device comprising a frame body, a smelting furnace mounted on the frame body, a tapping hole and a charging pipe mounted on the smelting furnace, and a charging pipe and a charging mechanism in communication, characterized in that, The smelting furnace is fixedly connected with a communication pipe, a protection cabinet is installed on the frame body, a first through hole matched with the communication pipe is formed in the protection cabinet, and a sampling mechanism is arranged in the protection cabinet. The sampling mechanism comprises a sleeve, a fixed 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 fixed block, a sampling box is fixedly connected to one end of the connecting frame away from the sliding block, a second through hole is formed in the sampling box, a first groove matched with the sampling box is formed in the fixed block, a second guide rail is installed on the sampling mechanism, a second electronic sliding block is slidably connected to the second guide rail, a weighing device is arranged on the second electronic sliding block, and the sleeve is fixedly installed on the weighing device. The detection mechanism is used for detecting the content of chromium in the stainless steel in the sampling box, and comprises a detection box, a third through hole matched with the second through hole is formed in the detection box, and a first placement space, a second placement space, a third placement space and a fourth placement space are arranged in the detection box. A conical funnel is installed in the first placement space, and the conical funnel is in communication with the second placement space. A first liquid storage tank is arranged in the second placement space, the first liquid storage tank stores a first mixed solution, a first metering pump is installed on the first liquid storage tank, a first infusion tube is installed on the first metering pump, and a test tube is fixedly connected to the first infusion tube. A second liquid storage tank, a third liquid storage tank and a fourth liquid storage tank are arranged in the third placement space, the second liquid storage tank stores a second mixed solution, 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 matched with the connecting plate is installed in the third placement space, the third liquid storage tank stores an ammonium persulfate 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. A third cylinder is installed in the fourth placement space, a beaker and a visual sensor are fixedly connected to the third cylinder. The first mixed solution is hydrochloric acid and nitric acid, the ratio of the hydrochloric acid and the nitric acid is 4:1, the second mixed solution is sulfuric acid and phosphoric acid, and the ratio of the sulfuric acid and the phosphoric acid is 2:

1. A first guide rail is fixedly connected in the protection cabinet, a first electronic sliding block is slidably connected to the first guide rail, a bearing plate is fixedly connected to the first electronic sliding block, 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. The first placement space is internally provided with a titration solution which is a mixed liquid of water and N-phenyl anthranilic acid, the test tube is provided with a second infusion tube, the second infusion tube is communicated with the first placement space, and the second infusion tube is provided with a first electromagnetic flow valve. The intelligent control mechanism is used for controlling the sampling mechanism, the detection mechanism and the feeding mechanism.

2. The apparatus according to claim 1, wherein The second through hole has a diameter of 0.8-1.5 mm, and the fixing block is integrally formed with a protrusion matched with the second through hole.

3. The apparatus according to claim 1, wherein The test tube is provided with a second groove, the second groove is blocked by a plug, the third infusion tube is provided with a liquid inlet, the plug is embedded with a first magnet block, and the third infusion tube is embedded with a second magnet block matched with the first magnet block.

4. The apparatus according to claim 3, wherein The communication pipe is provided with a temperature insulation cover, and the temperature insulation cover is provided with a first motor.

5. A stainless steel sheet production method using the stainless steel sheet production apparatus according to any one of claims 1 to 4, characterized by, The method comprises the following steps: S1, smelting: adding stainless steel waste into a smelting furnace through a feeding mechanism, smelting the stainless steel waste in the smelting furnace to make the stainless steel waste into a liquid state; S2, sampling: sampling the liquid stainless steel in the smelting furnace, gradually entering the sampling box into the first groove with the continuous retraction of the first air cylinder, and spraying the liquid stainless steel in the sampling box from the second through hole and into the detection mechanism through the extrusion of the fixing block; S3, detection: the stainless steel solution entering the detection mechanism sprays on the conical funnel to form particle solidification falling into the test tube, the first mixed solution is injected into the test tube, the stainless steel particles are dissolved into solution and discharged into the beaker, the second mixed solution is added into the beaker to remove nitrogen oxides, then the ammonium persulfate solution is added to make the solution red, and Cr 3+ is converted into Cr 6+ , the ferrous sulfate solution is added to make the solution green, and the flow of the ferrous sulfate solution is recorded; S4, calculation: calculating the content of the chromium element in the stainless steel according to the consumption of the ferrous ammonium sulfate solution; S5, feeding: supplementing the corresponding chromium into the smelting furnace according to the calculated content of the chromium element.

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