Coke fines screening device for studying the coke crushing rate in the coke transfer chute

Abstract

The present invention discloses a coke dust screening device for studying the crushing rate of coke in a coke transfer chute, relates to the technical field of coke transfer, and comprises a segmented chute, a coke guide assembly arranged in the segmented chute, and a coke dust screening mechanism arranged at the bottom of the segmented chute; in the present invention, on the one hand, a segmented movable transfer chute is used to realize the pitch change of a spiral guide cylinder to improve and reduce the crushing effect of coke in the transfer process, and on the other hand, an intelligent control system analyzes the proportion of components in the coke transfer process in real time, and uses the real-time proportion of coke dust to determine whether the current transfer process is in a normal operating state, which is applied to the study of the crushing rate of coke in the coke transfer chute, and can use the data analysis of the real-time coke dust proportion to make guiding actions for the adjustment of the transfer chute, thereby improving the coke transfer efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of coke transfer, and in particular to a coke fine screening device for studying the crushing rate of coke in a coke transfer chute. Background Art

[0002] The main functions of coke in blast furnace ironmaking include heat source, reducing agent and charge skeleton, etc., and the coke transfer chute is mostly installed in a straight line and tilted manner, and the coke is transferred from the upper conveyor belt to the lower conveyor belt. Due to the large vertical drop of the upper and lower conveyor belts, the coke dust and coke particles produced by the impact during the high-speed falling process of the coke are easy to affect the quality of blast furnace ironmaking. In the prior art, a curved guide structure is set in the transfer chute to reduce the wear resistance of the coke and reduce the generation of coke dust. For details, refer to the contents disclosed in the invention patent with the existing patent application number of 2024110253293;

[0003] However, a single curved guide structure is still difficult to ensure the crushing effect of coke during transportation. At the same time, the coke falls in a curved guide, which causes different wear conditions of the coke. The coke transportation crushing rate is calculated after the coke powder is separated. However, during the repair and debugging of the curved guide structure, it does not have the function of real-time intelligent dynamic adjustment according to the crushing rate during use, and cannot meet the rapid transportation needs of coke of different qualities at different crushing rates. For this reason, this application proposes a solution. Summary of the invention

[0004] The purpose of the present invention is to provide a coke fines screening device for studying the crushing rate of coke in a coke transfer chute. On the one hand, the pitch of the spiral guide cylinder is changed by a segmented and movable transfer chute to improve the crushing effect of the coke during the transfer process. On the other hand, the intelligent control system analyzes the proportion of components in the coke transfer process in real time, and uses the real-time proportion of coke fines to determine whether the current transfer process is in a normal operating state. When applied to the study of the crushing rate of coke in the coke transfer chute, the data analysis of the real-time proportion of coke fines can be used to provide guidance for the adjustment of the transfer chute, thereby improving the coke transfer efficiency.

[0005] The object of the present invention can be achieved by the following technical scheme: a coke fine screening device for studying the crushing rate of coke in a coke transfer chute, comprising a segmented chute, a coke guide assembly arranged in the segmented chute, and a coke fine screening mechanism arranged at the bottom of the segmented chute, wherein a lower connecting bucket and a filling cylinder are sequentially arranged at the bottom of the segmented chute, and a coke diversion structure for coke diversion is arranged below the middle of the lower connecting bucket;

[0006] The coke tail screening mechanism comprises an outer casing connected to the bottom opening of the coke diversion structure, a driving box and a control panel are arranged on one side of the outer casing, a material distribution plate is rotatably arranged in the outer casing, a perforated arc plate is installed on the inner wall of the material distribution plate, and a plurality of straight and curved perforations consisting of straight sections and tangent arc sections are opened on the perforated arc plate;

[0007] The outer box is provided with a side plate at the front end corresponding to the material distribution plate, and a collecting plate is horizontally installed inside the outer box corresponding to the side plate, and an anti-arc plate is installed on one side of the collecting plate, the tangent line of which is parallel to the straight section on the straight-bend socket;

[0008] The coke diversion structure comprises an opening and closing plate corresponding to a material distribution opening in the middle of the lower connecting bucket, and a material distribution box communicating with the interior of the outer casing is arranged below the lower connecting bucket.

[0009] It is further configured as follows: motor 1 is installed in the drive box, the output end of motor 1 is connected to a drive rod connected to a material distribution tray, motor 2 is installed outside the side panel, the output end of motor 2 extends into the material distribution tray and is connected to a feeding screw rod tangent to the middle bottom of the collecting tray.

[0010] It is further configured as follows: a feeding cylinder connected to the distribution box is installed in the outer box, a feeding port for the driving rod to pass through is opened at the bottom of the feeding cylinder, and the bottom of the feeding cylinder is aligned with the bottom edge of the feeding port.

[0011] It is further configured as follows: a feed baffle is installed on the inner side of the distribution plate near the feed port, and a plurality of evenly distributed gap inlet holes are opened on the feed baffle, and the near-center ends of the gap inlet holes are lower than the bottom height of the collecting plate.

[0012] It is further configured as follows: a wind suction pipe for sucking out coke residue is installed through the inner bottom wall of the material distribution tray corresponding to the lower end of the side plate, and the wind suction pipe is connected to the suction end of the suction device.

[0013] It is further configured as follows: a base frame is provided below the outer box, the base frame is connected to the side plate, an electric push rod penetrating the material distribution box and connected to the opening and closing disk is installed at the lower end of the lower connecting bucket, and the electric push rod is installed on the base frame.

[0014] It is further configured as follows: the coke guide assembly includes a regulating plate arranged on the base frame and a spiral guide cylinder arranged in the segmented chute, the spiral guide cylinder is a flexible rubber structure, the spiral guide cylinder is fixedly connected to each segmented chute, and the upper and lower ends of the spiral guide cylinder are respectively connected to the upper connecting bucket and the lower connecting bucket.

[0015] It is further configured as follows: a wheel groove is opened on the control plate, a motor three is embedded and installed on the lower side of each segmented chute, and a driving wheel matching the wheel groove is installed at the output end of the motor three.

[0016] It is further configured that: the control panel has a built-in control system, and the control system includes a processor, a parameter acquisition unit, a carbon dust ratio analysis unit, an execution control unit and a row screening selection unit that are communicatively connected;

[0017] The parameter collection unit is used to collect the composition data of the coke after it is transferred through the transfer chute during the coke transfer period;

[0018] The carbon dust ratio analysis unit is used to perform a ratio analysis based on the coke composition data, obtain the coke transport and crushing rate, and simultaneously generate a positive control signal and a reverse control signal;

[0019] The execution control unit controls the bending of the spiral guide cylinder by means of a forward control signal and a reverse control signal, and simultaneously performs diversion selection for normal discharge or coke end screening through a discharge and screening selection unit to ensure that the coke transfer meets the standards.

[0020] The present invention has the following beneficial effects:

[0021] In the present invention, on the one hand, the pitch of the spiral guide cylinder is changed by a segmented movable transfer chute to improve the crushing effect of coke during the transfer process. On the other hand, the intelligent control system analyzes the proportion of components in the coke transfer process in real time, and uses the real-time proportion of coke coke to perform data analysis to determine whether the current transfer process is in a normal operating state. This is applied to the study of the crushing rate of coke in the coke transfer chute, and can use the real-time data analysis of the proportion of coke coke to make guiding actions for the adjustment of the transfer chute, thereby improving the coke transfer efficiency.

[0022] During the pitch change of the spiral guide cylinder, the coke guide assembly sets the traditional transfer chute into a segmented structure to form a segmented chute, and the spiral guide cylinder is set in the segmented chute, and the pitch adjustment of the spiral guide cylinder is achieved by adjusting the spacing of the segmented chute, thereby achieving the change of the transfer loss of the coke located in the spiral guide cylinder. Specifically: start motor three, motor three drives the driving wheel to rotate, and the segmented chute slidably installed on the control plate is moved by the rotation of the driving wheel, thereby achieving the above-mentioned change of the pitch between the spiral guide cylinders. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1It is a schematic diagram of the axonometric structure of the present invention;

[0025] Figure 2 It is a rear view structural schematic diagram of the present invention;

[0026] Figure 3 It is a front cross-sectional view of the present invention;

[0027] Figure 4 It is a cross-sectional view of the coke powder screening mechanism of the present invention;

[0028] Figure 5 It is a side cross-sectional view of the coke powder screening mechanism of the present invention;

[0029] Figure 6 This is a structural diagram of the installation of the material distribution tray of the present invention;

[0030] Figure 7 For the present invention Figure 6 A in the enlarged view;

[0031] Figure 8 It is a schematic diagram of the installation structure of the opening and closing disk of the present invention;

[0032] Fig. 9 It is a schematic diagram of the disassembly of the installation structure of the material distribution plate and the driving rod of the present invention;

[0033] Fig.10 It is a schematic diagram of the internal structure of the coke powder screening mechanism of the present invention;

[0034] Fig.11 It is a schematic diagram of the installation structure of the coke collecting tray of the present invention;

[0035] Fig.12 It is a schematic diagram of the installation structure of the segmented chute of the present invention;

[0036] Fig.13 It is a flowchart of the control system of the present invention.

[0037] In the figure: 1. Segmented chute; 2. Spiral guide cylinder;

[0038] 3. Coke screening mechanism; 31. Drive box; 32. Outer box; 33. Motor 1; 34. Distributor plate; 35. Collector plate; 351. Reverse arc plate; 36. Hole arc plate; 37. Feed baffle plate; 38. Drive rod; 39. Gap inlet hole; 310. Straight and curved holes;

[0039] 4. Filling cylinder; 5. Upper connecting bucket; 6. Lower connecting bucket; 7. Control plate; 8. Base frame; 9. Electric push rod; 10. Material distribution box; 11. Feeding cylinder; 12. Motor 2; 13. Discharge groove; 14. Feeding screw rod; 15. Material distribution port; 16. Opening and closing disk; 17. Lower discharge port; 18. Docking port; 19. Side panel; 20. Discharge port; 21. Feeding port; 22. Air suction pipe; 23. Driving wheel; 24. Motor 3; 25. Mounting slot; 26. Wheel slot. DETAILED DESCRIPTION

[0040] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] Embodiment 1: The curved guide structure in the coke transport does not have the function of real-time intelligent dynamic adjustment according to the crushing rate during use, and cannot meet the technical problem of the rapid transport demand of coke of different qualities at different crushing rates. Figure 1 - Fig.13 As shown, the present invention discloses a coke fine screening device for studying the crushing rate of coke in a coke transfer chute, comprising a segmented chute 1, a coke guide assembly arranged in the segmented chute 1, and a coke fine screening mechanism 3 arranged at the bottom of the segmented chute 1;

[0042] The bottom of the segmented chute 1 is provided with a lower connecting bucket 6 and a filling tube 4 in sequence, and a coke diversion structure for diverting coke is provided below the middle of the lower connecting bucket 6. The segmented chute 1 is connected to the lower conveyor belt through the lower connecting bucket 6 and the filling tube 4, and the upper connecting bucket 5 connected to the upper conveyor belt is provided at the upper end of the segmented chute 1, wherein the upper conveyor belt is adjusted according to the horizontal height of the upper connecting bucket 5;

[0043] Reference Figure 3 - Figure 7 As shown, the coke screening mechanism 3 includes an outer casing 32 connected to the bottom opening of the coke diversion structure, a driving box 31 and a control panel are arranged on one side of the outer casing 32, a material distribution plate 34 is rotatably arranged in the outer casing 32, a perforated arc plate 36 is installed on the inner wall of the material distribution plate 34, and a plurality of straight and curved perforations 310 composed of straight sections and tangent arc sections are opened on the perforated arc plate 36;

[0044] The outer box 32 is provided with a side plate 19 at the front end corresponding to the material distribution plate 34, and a collecting plate 35 is horizontally installed inside the side plate 19 corresponding to the outer box 32. A reverse arc plate 351 is installed on one side of the collecting plate 35, and the tangent is parallel to the straight section on the straight bend hole 310. After the coke is transported through the transfer chute, the coke and coke are screened by the coke screening mechanism 3, and the coke crushing rate is obtained and the feedback adjustment of the coke guide component in the segmented chute 1 is performed according to the coke crushing rate;

[0045] Reference Figure 8 and Fig. 9 As shown, the coke diversion structure includes an opening and closing plate 16 corresponding to the material distribution opening 15 in the middle of the lower connecting bucket 6, a material distribution box 10 connected to the inside of the outer box 32 is arranged below the lower connecting bucket 6, a motor 1 33 is installed in the driving box 31, and the output end of the motor 1 33 is connected to a driving rod 38 connected to the material distribution plate 34, and a motor 2 12 is installed outside the side plate 19, and the output end of the motor 2 12 extends to the material distribution plate 34 and is connected to a feeding screw rod 14 tangent to the middle bottom of the collecting plate 35;

[0046] A feeding cylinder 11 connected to the distribution box 10 is installed in the outer box 32. A feeding port 21 for the driving rod 38 to pass through is provided at the bottom of the feeding cylinder 11, and the bottom of the feeding cylinder 11 is aligned with the bottom edge of the feeding port 21. The coke enters the distribution plate 34 to complete the screening between the coke and the coke powder.

[0047] The screening process of coke is as follows: the coke enters the feeding tube 11 and enters the distribution plate 34 through the feeding port 21. After the coke enters the outer box 32 and enters the distribution plate 34, it is subjected to the centrifugal force of continuous rotation. The coke continuously rises through the perforated arc plate 36 to the anti-arc plate 351 on the collecting plate 35. The coke particles therein are brought to the top of the collecting plate 35 through the straight curved perforations 310 on the perforated arc plate 36 and fall down. The coke particles falling into the collecting plate 35 are driven by the motor 2 12 to rotate the feeding screw rod 14 and discharged into the discharge groove 13 through the discharge port 20. The discharge groove 13 discharges the coke particles into the collection box and finally continues to feed the blast furnace ironmaking process. Before the coke reaches the anti-arc plate 351, it is blown by the air flow and falls off first, and is concentrated on the perforated arc plate 36 at the bottom of the distribution plate 34, and is simultaneously continuously sucked by the wind suction pipe 22 to complete continuous collection.

[0048] Reference Figure 3 , Figure 4 and Fig.11 As shown, the lower end of the side plate 19 corresponds to the inner bottom wall of the material distribution tray 34 and is provided with an air suction pipe 22 for removing the coke residue. The air suction pipe 22 is connected to the air suction end of the suction device. A bottom frame 8 is provided below the outer box 32 and is connected to the side plate 19.

[0049] The lower end of the lower connecting bucket 6 is provided with an electric push rod 9 which penetrates the material distribution box 10 and is connected to the opening and closing disk 16. The electric push rod 9 is installed on the base frame 8. After the electric push rod 9 is started, it drives the opening and closing disk 16 to move up and down. When the opening and closing disk 16 coincides with the material distribution port 15, the coke discharged through the upper conveyor belt and the spiral guide cylinder 2 can be smoothly discharged through the lower connecting bucket 6 and the filling cylinder 4 to the lower conveyor belt, thereby realizing the coke supply for blast furnace ironmaking.

[0050] Reference Fig.13 As shown, the control panel has a built-in control system, which includes a processor, a parameter acquisition unit, a carbon dust ratio analysis unit, an execution control unit and a row screening selection unit that are connected to each other;

[0051] The parameter collection unit is used to collect the coke composition data after the coke is transferred through the transfer chute during the coke transfer period. The coke composition data includes the coke mass after screening and the coke mass, which are measured by a weighing sensor arranged in the suction device and a weighing sensor arranged in the collection box at the end of the discharge groove 13, respectively, and are defined as JM and JT, respectively, and the coke composition data JM and JT, and the collected coke composition data are sent to the coke mass ratio analysis unit through the processor;

[0052] The carbon dust ratio analysis unit is used to perform a ratio analysis based on the coke composition data to obtain the coke transport crushing rate ZPz. , compare the coke transfer crushing rate ZPz with the crushing standard value preset in the processor, and simultaneously generate a positive control signal and a reverse control signal;

[0053] The comparative analysis process is as follows: when the coke transfer crushing rate is greater than the crushing standard value, a positive control signal is generated and sent to the execution control unit to execute related actions;

[0054] When the coke transfer crushing rate is less than the crushing standard value, a reverse control signal is generated and sent to the execution control unit to execute related actions;

[0055] When the coke transfer crushing rate = crushing standard value, no signal is generated and the system operates normally;

[0056] The execution control unit performs bending control of the spiral guide cylinder 2 by the forward control signal and the reverse control signal, and simultaneously performs the diversion selection of normal discharge or coke end screening through the discharge and screening selection unit to ensure that the coke transportation meets the standards. The specific bending control process is as follows:

[0057] When a positive control signal is received: this indicates that the current coke transport crushing rate is "over-limit", indicating that the impact force of the coke in the spiral guide cylinder 2 is too large, resulting in a crushing effect that exceeds the preset crushing standard value. At this time, a control signal is sent to the motor 3 24. After the motor 3 24 is started, it drives the driving wheel 23 to rotate, driving the movement of the segmented chute 1 on the control plate 7, that is, the spacing between adjacent segmented chutes 1 becomes smaller. At this time, the pitch of the spiral guide cylinder 2 in the segmented chute 1 becomes smaller, that is, the transport loss of coke in the spiral guide cylinder 2 is "delayed", and the quality of coke powder is reduced. The control is stopped until the coke transport crushing rate = the crushing standard value;

[0058] When a reverse control signal is received, it indicates that the current coke transfer and crushing rate is "insufficient". Insufficient coke transfer and crushing will directly lead to limited coke transfer and inability to provide stable feeding for blast furnace ironmaking. At this time, a control signal is sent to motor three 24. After motor three 24 is started, it drives the driving wheel 23 to rotate, driving the segmented chute 1 of this section to move on the control plate 7, that is, the distance between adjacent segmented chutes 1 becomes larger. At this time, the pitch of the spiral guide cylinder 2 in the segmented chute 1 becomes larger, so as to prevent insufficient feeding of blast furnace ironmaking caused by limited coke transfer.

[0059] When the diversion selection is coke screening: the electric push rod 9 is started and drives the opening and closing disk 16 to move downward, so that the material distribution port 15 is exposed. At this time, the coke discharged through the upper conveyor belt and the spiral guide cylinder 2 can enter the material distribution disk 34 through the material distribution port 15, the lower discharge port 17, the docking port 18, the feeding cylinder 11, and the feed port 21. The coke entering the material distribution disk 34 can be screened to finally achieve the purpose of proportion analysis;

[0060] When the diversion selection is normal discharge: the electric push rod 9 is started and drives the opening and closing disc 16 to move upward. When the opening and closing disc 16 coincides with the material distribution port 15, the coke discharged through the upper conveyor belt and the spiral guide cylinder 2 can be smoothly discharged through the lower connecting bucket 6 and the filling cylinder 4 to the lower conveyor belt, that is, the normal discharge of coke finally realizes the coke supply for blast furnace ironmaking;

[0061] It should be noted that when the coke passes through the lower connecting bucket 6 and the material distribution port 15 is opened, the coke passing through the lower connecting bucket 6 will not be discharged into the filling tube 4, but will all fall into the material distribution port 15 to complete the subsequent coke screening process.

[0062] Basic principle: The coke dust screening device of the coke transfer chute in the present invention is basically the same as the principle of the prior art, with the differences being that, on the one hand, the pitch change of the spiral guide cylinder is achieved through a segmented and movable transfer chute to improve the crushing effect of the coke during the transfer process; on the other hand, the intelligent control system performs real-time analysis on the proportion of components in the coke transfer process, and performs data analysis on the real-time proportion of coke dust to determine whether the current transfer process is in normal operation. This is applied to the study of the crushing rate of coke in the coke transfer chute, and can use the real-time data analysis of the proportion of coke dust to provide guidance for the adjustment of the transfer chute, thereby improving the coke transfer efficiency.

[0063] Embodiment 2: This embodiment further optimizes the structure of the spiral guide cylinder in Embodiment 1.

[0064] Reference Figure 1 - Figure 3 As shown, the coke guide assembly includes a regulating plate 7 arranged on a base frame 8 and a spiral guide cylinder 2 arranged in a segmented chute 1. The spiral guide cylinder 2 is a flexible rubber structure. The spiral guide cylinder 2 is fixedly connected to each segmented chute 1, and the upper and lower ends of the spiral guide cylinder 2 are respectively connected to an upper connecting bucket 5 and a lower connecting bucket 6;

[0065] The coke guide assembly is a conventional transfer chute configured as a segmented structure to form a segmented chute 1, and a spiral guide cylinder 2 is arranged in the segmented chute 1, and the pitch of the spiral guide cylinder 2 is adjusted by adjusting the spacing of the segmented chute 1 to achieve the change in the transfer loss of the coke in the spiral guide cylinder 2.

[0066] Secondly, refer to Fig.12 As shown, a wheel groove 26 is provided on the regulating plate 7, and a motor 3 24 is embedded and installed on the lower side of each segmented chute 1. A driving wheel 23 matching the wheel groove 26 is installed at the output end of the motor 3 24. The pitch adjustment method of the spiral guide cylinder 2 is as follows: the motor 3 24 is started to drive the driving wheel 23 to rotate, and the segmented chute 1 slidably installed on the regulating plate 7 is moved by the rotation of the driving wheel 23, so as to realize the change of the pitch between the above-mentioned spiral guide cylinders 2;

[0067] In addition, there are: Figure 5 and Fig.10 As shown, a feed baffle plate 37 is installed on the inner side of the material distribution plate 34 near the feed port 21, and a plurality of evenly distributed gap inlet holes 39 are opened on the feed baffle plate 37, and the near-center end of the gap inlet hole 39 is lower than the bottom height of the collecting plate 35;

[0068] In this process, when the coke moves to the distribution tray 34 through the feeding barrel 11, it first enters the distribution tray 34 through the feeding port 21. The coke that enters the distribution tray 34 is prevented from entering the collecting tray 35 by the blocking effect of the feeding baffle plate 37, thereby avoiding the mixing obstruction caused during the determination of the coke residue component, which is beneficial to the accuracy of the data analysis of the coke residue component ratio.

[0069] Embodiment 3: This embodiment combines Embodiment 1 and Embodiment 2 to form a working method of a coke screening device for studying the crushing rate of coke in a coke transfer chute, including the following methods:

[0070] (1) The direction of normal coke discharge: After the electric push rod 9 is started, it drives the opening and closing disc 16 to move upward. When the opening and closing disc 16 coincides with the material distribution port 15, the coke discharged through the upper conveyor belt, the upper connecting bucket 5, and the spiral guide cylinder 2 can be smoothly discharged through the lower connecting bucket 6 and the filling cylinder 4 to the lower conveyor belt, that is, the normal discharge of coke finally realizes the coke supply for blast furnace ironmaking;

[0071] (2) Running direction during coke screening: After the electric push rod 9 is started, it drives the opening and closing plate 16 to move downward, so that the material distribution port 15 is exposed. At this time, the coke discharged through the upper conveyor belt and the spiral guide cylinder 2 can enter the material distribution plate 34 through the material distribution port 15, the lower discharge port 17, the docking port 18, the feeding cylinder 11, and the feed port 21. The coke entering the material distribution plate 34 can be screened;

[0072] (3) Coke screening process: Coke enters the feeding tube 11 and enters the distribution plate 34 through the feeding port 21. After the coke enters the outer box 32 and enters the distribution plate 34, it is subjected to the centrifugal force of continuous rotation. The coke continuously rises through the perforated arc plate 36 to the anti-arc plate 351 on the collecting plate 35. The coke particles therein are brought to the top of the collecting plate 35 through the straight and curved perforations 310 on the perforated arc plate 36 and fall down. The coke particles falling into the collecting plate 35 are driven by the motor 12 to rotate the feeding screw rod 14 and discharged through the discharge port 20 into the discharge groove 13. The discharge groove 13 discharges the coke particles into the collection box and finally continues to feed the blast furnace ironmaking process. Before reaching the anti-arc plate 351, the coke powder is blown off by the air flow and is concentrated on the perforated arc plate 36 at the bottom of the distribution plate 34. At the same time, it is continuously sucked by the air suction pipe 22 to complete continuous collection.

[0073] (4) In (3), the crushing rate of the current quality coke is obtained by analyzing the proportion of coke after screening, and the pitch of the spiral guide cylinder 2 is adjusted based on this result to adapt to the current quality coke for lossless transportation and improve the efficiency of blast furnace ironmaking;

[0074] (5) The coke transfer process can be carried out in two stages according to (1) or (2) (3) (4), among which (2), (3) and (4) are the processes of adjusting the different transfer crushing rates for cokes of different qualities, and realizing lossless transfer of coke in the transfer chute in real time according to the transfer crushing rate.

[0075] It should be noted that during the transportation process, a time threshold is set to analyze the transportation crushing rate and intelligently adjust the feedback. For example, coke screening is set every 3 minutes, and component analysis is completed immediately after the screening is completed, and feedback adjustment is made immediately. This cycle is repeated until the crushing rate meets the blast furnace ironmaking requirements and can also ensure the continuous supply of coke.

[0076] In summary, the present invention realizes the pitch change of the spiral guide cylinder through a segmented movable transfer chute to improve the crushing effect of coke during the transfer process. On the other hand, the intelligent control system performs real-time analysis on the proportion of components in the coke transfer process, and performs data analysis on the real-time proportion of coke coke to determine whether the current transfer process is in a normal operating state. This is applied to the study of the crushing rate of coke in the coke transfer chute, and can make guiding actions for the adjustment of the transfer chute based on the data analysis of the real-time proportion of coke coke, thereby improving the coke transfer efficiency.

[0077] In order to address the problem that the curved guide structure in coke transfer does not have the function of real-time intelligent dynamic adjustment according to the crushing rate during use, the intelligent dynamic adjustment of coke transfer is achieved by adjusting the pitch of the spiral guide tube according to the real-time change feedback of the crushing rate. This avoids the phenomenon that the blast furnace ironmaking cannot be fed uninterruptedly due to the inability to carry out coke transfer continuously caused by shutdown adjustment, thereby improving the coke transfer efficiency.

[0078] The above formulas are obtained by collecting a large amount of data for software simulation and selecting a formula that is close to the actual value. The coefficients in the formula are set by technical personnel in this field according to actual conditions. The above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited to this. Any technical personnel familiar with the technical field within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, make equivalent replacement or change, which should be covered within the protection scope of the present invention.

Claims

1. A coke fine screening device for studying the crushing rate of coke in a coke transfer chute, comprising a segmented chute (1), a coke guide assembly arranged in the segmented chute (1), and a coke fine screening mechanism (3) arranged at the bottom of the segmented chute (1), characterized in that: The bottom of the segmented chute (1) is provided with a lower connecting bucket (6) and a filling cylinder (4) in sequence, and a coke diversion structure for diverting coke is provided below the middle of the lower connecting bucket (6); The coke dust screening mechanism (3) comprises an outer casing (32) connected to the bottom opening of the coke diversion structure, a driving box (31) and a control panel are arranged on one side of the outer casing (32), a material distribution plate (34) is rotatably arranged in the outer casing (32), a perforated arc plate (36) is installed on the inner wall of the material distribution plate (34), and a plurality of straight and curved perforations (310) composed of straight sections and tangent arc sections are formed on the perforated arc plate (36); The outer box (32) is provided with a side plate (19) at the front end corresponding to the material distribution plate (34); a collecting plate (35) is horizontally installed inside the side plate (19) corresponding to the outer box (32); an anti-arc plate (351) is installed on one side of the collecting plate (35) and is arranged parallel to the straight section on the straight-bend socket hole (310) through the inner bottom wall of the material distribution plate (34); and a wind suction pipe (22) for removing coke residue is installed at the lower end of the side plate (19) corresponding to the inner bottom wall of the material distribution plate (34); the wind suction pipe (22) is connected to the suction end of the suction device; The coke flow distribution structure comprises an opening and closing plate (16) corresponding to a distribution opening (15) in the middle of the lower connecting bucket (6); a distribution box (10) communicating with the interior of the outer box (32) is provided below the lower connecting bucket (6); The coke guide assembly comprises a control plate (7) arranged on a base frame (8) and a spiral guide cylinder (2) arranged in the segmented chute (1); the spiral guide cylinder (2) is a flexible rubber structure; the spiral guide cylinder (2) is fixedly connected to each segmented chute (1); and the upper and lower ends of the spiral guide cylinder (2) are respectively connected to an upper connecting bucket (5) and a lower connecting bucket (6); The control panel is built with a control system, which includes a processor, a parameter acquisition unit, a carbon dust ratio analysis unit, an execution control unit and a row screening selection unit that are communicatively connected; The parameter collection unit is used to collect the composition data of the coke after it is transferred through the transfer chute during the coke transfer period; The carbon dust ratio analysis unit is used to perform a ratio analysis based on the coke composition data to obtain the coke transport and crushing rate, and simultaneously generate a positive control signal and a reverse control signal; The execution control unit controls the bending of the spiral guide cylinder (2) by means of a forward control signal and a reverse control signal, and simultaneously performs diversion selection for normal discharge or coke end screening through a discharge and screening selection unit, thereby ensuring that the coke transfer meets the standards.

2. The coke fine screening device for studying the coke crushing rate in the coke transfer chute according to claim 1, characterized in that: A motor 1 (33) is installed in the driving box (31), and an output end of the motor 1 (33) is connected to a driving rod (38) connected to a material distribution plate (34). A motor 2 (12) is installed outside the side plate (19), and an output end of the motor 2 (12) extends into the material distribution plate (34) and is connected to a feeding screw rod (14) tangent to the middle bottom of the collecting plate (35).

3. The coke fine screening device for studying the coke crushing rate in the coke transfer chute according to claim 2, characterized in that: A feeding cylinder (11) connected to the material distribution box (10) is installed in the outer box (32), and a feeding port (21) for the driving rod (38) to pass through is provided at the bottom of the feeding cylinder (11), and the bottom of the feeding cylinder (11) is aligned with the bottom edge of the feeding port (21).

4. The coke fine screening device for studying the coke crushing rate in the coke transfer chute according to claim 3, characterized in that: A feed baffle (37) is installed on the inner side of the material distribution plate (34) near the feed inlet (21), and a plurality of evenly distributed gap inlet holes (39) are formed on the feed baffle (37), and the near-center end of the gap inlet holes (39) is lower than the bottom height of the collection plate (35).

5. The coke fine screening device for studying the coke crushing rate in the coke transfer chute according to claim 1, characterized in that: A base frame (8) is provided below the outer box (32), and the base frame (8) is connected to the side plate (19). An electric push rod (9) penetrating the material distribution box (10) and connected to the opening and closing disk (16) is installed at the lower end of the lower connecting bucket (6), and the electric push rod (9) is installed on the base frame (8).

6. The coke fine screening device for studying the coke crushing rate in the coke transfer chute according to claim 1, characterized in that: The regulating plate (7) is provided with a wheel groove (26), and a motor three (24) is embedded and installed on the lower side of each segmented chute (1), and a driving wheel (23) matching the wheel groove (26) is installed at the output end of the motor three (24).

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