Internal heating type rotary activation furnace system capable of intelligently controlling steam inlet amount

Abstract

An internal heating type rotary activation furnace system capable of intelligently controlling steam inlet quantity comprises a rotary activation furnace and a central processing unit, the rotary activation furnace comprises a plurality of groups of steam control devices connected with the central processing unit, and each steam control device comprises a steam spraying hole, a pressure sensor and a steam switch valve. The pressure sensor is used for acquiring pressure data of the position of the steam spraying hole in real time; in the central processing unit, a control unit sends a control command to the rotary activation furnace; the signal processing unit receives monitoring data in the rotary activation furnace and sends a control command to the rotary activation furnace; the dynamic simulation unit establishes a three-dimensional dynamic model according to real-time pressure data detected by the pressure sensor; and the analysis unit calculates the water vapor introduction amount required by each steam spraying hole at the next moment by adopting a regional duality method according to the three-dimensional dynamic data of the three-dimensional dynamic model, and determines the opening amplitude of the steam switch valve. According to the invention, the amount of required water vapor is accurately calculated, the water vapor feeding amount is accurately controlled, and the activation efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the field of activated carbon activation, and more specifically, to an internal heating rotary activation furnace system with intelligent control of steam intake volume. Background Art

[0002] Activated carbon is a functional carbon material with high adsorption capacity. It has a special microcrystalline structure and developed pores, thus having a huge specific surface area. Due to its dual characteristics of physical adsorption and chemical adsorption, activated carbon is widely used in many fields such as food, medicine, water treatment, gas purification and recovery, chemical industry, smelting, national defense, and agriculture.

[0003] The internal heating rotary activation furnace is an important device for activated carbon production. It activates the carbonized material with high-temperature steam to improve the specific surface area and adsorption performance of activated carbon. However, the traditional internal heating rotary activation furnace has some limitations and problems, and there are some deficiencies in the mixing of steam in the existing internal heating rotary activation furnace.

[0004] Therefore, the problems existing in the prior art need to be further improved and developed. Summary of the Invention

[0005] (1) Object of the Invention: To solve the problems existing in the above-mentioned prior art, the object of the present invention is to provide an internal heating rotary activation furnace system with intelligent control of steam intake volume.

[0006] (2) Technical Solution: To solve the above technical problems, the present technical solution provides an internal heating rotary activation furnace system with intelligent control of steam intake volume, including a rotary activation furnace and a central processor. The rotary activation furnace includes a rotary furnace and multiple groups of steam control devices respectively connected to the central processor. The steam control device includes a steam injection hole, a pressure sensor, and a steam switch valve. The steam injection hole is arranged on the inner wall of the furnace body of the rotary furnace to input steam into the furnace body of the rotary furnace. The pressure sensor is arranged around the steam injection hole to obtain the pressure data at the position where the steam injection hole is located in real time. The steam switch valve adjusts the steam injection volume into the furnace body through the steam injection hole. The central processing unit includes a control unit, a signal processing unit, a dynamic simulation unit, and an analysis unit. The control unit sends control commands to the rotary activation furnace to control the rotary activation furnace. The signal processing unit is used to receive the monitoring data in the rotary activation furnace and send the control commands generated by the central processing unit to the rotary activation furnace through the control unit. The dynamic simulation unit establishes a three-dimensional dynamic model based on the real-time pressure data detected by the pressure sensor. The analysis unit calculates the required steam injection volume for each steam injection hole at the next moment using the regional dual method based on the three-dimensional dynamic data of the three-dimensional dynamic model, and determines the opening amplitude of the steam switch valve.

[0007] Wherein, a lifting plate is arranged on the inner wall of the furnace body. The lifting plate stirs up and agitates the activation raw materials and pushes the activation raw materials to move from the feed port to the discharge port. The lifting plates are evenly distributed on the inner wall of the furnace body.

[0008] Wherein, the pressure sensor is arranged at any position within the range of the first radius value with the steam injection hole as the center of the circle.

[0009] Wherein, the pressure sensors are arranged at equal intervals in the length direction of the furnace body and at equal central angles in the same central cross-section.

[0010] Wherein, the dynamic simulation unit establishes a three-dimensional dynamic model based on the real-time pressure data detected by the pressure sensor. The specific implementation process includes: Establish a three-dimensional basic model of the furnace body; According to the positions of all steam control devices on the furnace body, corresponding marking points are set on the three-dimensional basic model to obtain a three-dimensional model; The real-time pressure data monitored by each steam control device is associated with the three-dimensional model in real time to obtain a three-dimensional dynamic model.

[0011] Wherein, the analysis unit calculates the required steam injection volume for each steam injection hole at the next moment using the regional dual method based on the three-dimensional dynamic data of the three-dimensional dynamic model. The specific calculation process is as follows: The analysis unit divides the furnace body in the three-dimensional dynamic model into A conveying sections of activation raw materials along the extending direction of the furnace body; The simulated pressure sensors in each conveying section are respectively corresponded one by one with the simulated pressure sensor in the first conveying section; In the order from near to far from the first conveying section, each simulated pressure sensor in each conveying section is coupled with the corresponding simulated pressure sensor in the first conveying section; According to the pressure data of the simulated pressure sensor coupled with the target simulated pressure sensor, calculate the pressure data of the target simulated pressure sensor at the target moment; Calculate the steam input amount of the steam injection holes corresponding to the target analog pressure sensor at the target moment according to the pressure data of the target analog pressure sensor at the target moment.

[0012] Among them, the furnace body in the three-dimensional dynamic model is divided into A conveying sections of activated raw materials, including: Select the analog pressure sensor in the three-dimensional dynamic model, draw a line along the extending direction of the furnace body to obtain a division standard line; Calculate the number A of the conveying sections according to the number of intersections of the division standard line and the analog pressure sensor, and the number of intersections of the division standard line and the lifting plate; According to the number A of the conveying sections, make segmentation marks on the division standard line. In the furnace body of the three-dimensional dynamic model, take the plane perpendicular to the furnace body of the three-dimensional dynamic model where the segmentation marks are located as the cutting plane, and the area between every two adjacent cutting planes is a conveying section.

[0013] Among them, when coupling the analog pressure sensors of different conveying sections, it includes setting jump anchors on each analog pressure sensor. The jump anchors on the mutually coupled analog pressure sensors are the same, and the jump anchors for the uncoupled analog pressure sensors are different. The jump anchors are used for the quick selection of the mutually coupled analog pressure sensors.

[0014] Among them, setting jump anchors on each analog pressure sensor specifically includes the following steps: Divide the analog pressure sensors in the three-dimensional dynamic model into multiple groups according to the coupling relationship; Establish the positioning relationship of the same jump anchors for the analog pressure sensors in the same group, that is, set the same jump anchors on the analog pressure sensors in the same group.

[0015] Among them, the same jump anchors include an associated jump relationship and a jump color plate. When triggering the jump anchor on a certain analog pressure sensor, the jump color plates of the analog pressure sensors with the same jump anchors display the same specified color.

[0016] (III) Beneficial effects: The present invention provides an internal-heating rotary activation furnace for intelligently controlling the steam input amount. The steam is sent into the furnace through the steam injection holes provided on the inner wall of the rotary furnace. At the same time, a pressure sensor is provided at one end of the steam in the steam injection hole to monitor the amount of activated raw materials at the position where the steam injection hole is located, and according to the pressure data of different pressure sensors in the three-dimensional dynamic model, the number of activated raw materials at the steam injection hole at a future moment is estimated, and the required amount of steam is accurately calculated, realizing the precise control of the steam input amount, and improving the steam utilization rate, activation effect and activation efficiency. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of the rotary furnace of an internal heat type rotary activation furnace system for intelligently controlling the steam inflow according to the present invention; Figure 2 It is a schematic structural diagram of the circular cross-section of the rotary furnace of an internal heat type rotary activation furnace system for intelligently controlling the steam inflow according to the present invention; Figure 3 It is a schematic structural diagram of the steam control device of an internal heat type rotary activation furnace system for intelligently controlling the steam inflow according to the present invention; Figure 4 It is a schematic diagram of the historical pressure data at the current marked point in the three-dimensional dynamic model according to the present invention; Figure 5 It is a schematic diagram of the real-time pressure distribution of each marked point in the three-dimensional dynamic model according to the present invention; Figure 6 It is a schematic diagram of the pressure on each pressure sensor when the rotary furnace of an internal heat type rotary activation furnace system for intelligently controlling the steam inflow is damaged during rotation according to the present invention.

[0018] Reference numerals: 1 - rotary furnace, 2 - rotary drive device, 3 - sliding contact power supply device, 4 - steam connection device, 500 - steam control device, 6 - furnace head fan, 7 - furnace middle fan, 8 - activation raw material; 11 - furnace body, 12 - feed inlet, 13 - discharge outlet, 14 - driven gear; 21 - fixed platform, 22 - drive motor, 23 - support structure, 24 - drive gear; 31 - sliding contact coil, 32 - power supply, 33 - support frame; 41 - steam inlet pipe, 42 - rotary joint, 43 - rotary connecting pipe, 44 - steam ring pipe, 45 - furnace wall pipe, 46 - steam injection connecting pipe; 501 - steam injection hole; 502 - steam nozzle; 503 - pressure sensor; 504 - steam switch valve. Detailed implementation manners

[0019] The following further describes the present invention in detail with reference to preferred embodiments. More details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can obviously be implemented in many other ways different from this description. Those skilled in the art can make similar generalizations and deductions according to the actual application situation without departing from the connotation of the present invention. Therefore, the protection scope of the present invention should not be limited by the content of this specific embodiment.

[0020] The accompanying drawings are schematic diagrams of embodiments of the present invention. It should be noted that this accompanying drawing is only an example and is not drawn under equal-proportion conditions, and should not be used to limit the actual scope of protection required by the present invention.

[0021] An internal heat type rotary activation furnace system for intelligently controlling steam inflow provided by the present invention, as Figure 1 shown, includes a rotary activation furnace and a central processor. The rotary activation furnace includes a rotary furnace 1, a rotary drive device 2, a sliding contact power supply device 3, and a steam connection device 4. The rotary furnace 1 provides a containing space for activating the activation raw material 8. The rotary drive device 2 provides power for the rotation of the rotary furnace 1, ensuring that the activation raw material 8 is uniformly activated in the rotary furnace 1 to obtain the required activated coke. The sliding contact power supply device 3 supplies electric energy to the rotary furnace 1. The steam connection device 4 supplies water vapor to the rotary furnace 1, ensuring that the activation raw material 8 in the rotary furnace 1 can undergo an activation reaction. The central processor is respectively connected to the rotary furnace 1, the rotary drive device 2, the sliding contact power supply device 3, and the steam connection device 4 of the rotary activation furnace, controlling the operation of the rotary furnace 1, the rotary drive device 2, the sliding contact power supply device 3, and the steam connection device 4, thereby ensuring the normal operation of an internal heat type rotary activation furnace system for intelligently controlling steam inflow.

[0022] The rotary furnace 1 is a cylindrical structure inclined with respect to the horizontal ground, as Figure 1 , Figure 2 shown. The rotary furnace 1 includes a furnace body 11, a feed inlet 12, a discharge outlet 13, and a driven gear 14. The driven gear is provided on the outer wall of the furnace body 11. The furnace body 11 is inclined with respect to the horizontal ground, and the inclination angle between the furnace body 11 and the horizontal ground is 10° - 20°. The feed inlet 12 is provided at the upwardly inclined end of the furnace body 11 to allow the activation raw material 8 to enter the rotary furnace 1; the discharge outlet 13 is provided at the downwardly inclined end of the furnace body 11 to facilitate the discharge of the activated coke after activation treatment from the furnace body 11. A driven gear 14 is fixedly connected to the outer wall surface of the furnace body 11. The driven gear 14 is an annular structure, and the driven gear 14 surrounds the outer wall of the rotary furnace 1. The driven gear 14 is used to drive the rotary furnace 1 to rotate. The inner wall of the furnace body 11 is provided with spiral lifting plates. When the activation raw material 8 enters the furnace body 11, as the rotary furnace 1 rotates, the lifting plates can lift and stir the activation raw material 8, and push the activation raw material 8 to move from the feed inlet 12 towards the discharge outlet 13, making the activation process more uniform. The lifting plates are uniformly distributed on the inner wall of the furnace body to ensure the uniform transportation of the activation raw material 8.

[0023] More specifically, the furnace body 11 should be made of high-temperature refractory and heat-insulating materials, and the specific materials are not limited herein. In this embodiment, the furnace body 11 is welded by high-quality boiler steel plates, and firebricks and a heat-insulating layer are laid inside the furnace body 11. The driven gear 14 is fixedly connected to the furnace body 11 to ensure that the driven gear 14 drives the furnace body 11 to rotate. The specific connection method is not limited. In this embodiment, the driven gear 14 is welded on the outer surface of the furnace body 11. And the number of the driven gears 14 is set to be more than two, which is set according to the length of the converter 1. In this embodiment, the number of the driven gears 14 is set to be two, and they are respectively located at the 1 / 4 and 3 / 4 positions of the converter 1.

[0024] A furnace head blower 6 and a furnace middle blower 7 are arranged outside the feed inlet 12. The air outlet of the furnace head blower 6 is arranged at a position in the furnace body 11 close to the feed inlet 12, and the air outlet of the furnace middle blower 7 is arranged at the middle position of the furnace body 11. The furnace head blower 6 and the furnace middle blower 7 are used to provide air for the activation process. The air reacts with the activation raw material 8 to generate heat energy, so that the temperature in the furnace reaches the activation temperature required by the activation process, thereby obtaining the required activated coke.

[0025] A rotary drive device 2 is connected below the driven gear 14. The rotary drive device 2 is used to provide support and rotary driving force for the converter 1, and the number of the rotary drive devices 2 is equal to the number of the driven gears 14.

[0026] The rotary drive device 2 includes a fixed platform 21, a drive motor 22, a support structure 23 and a drive gear 24. The fixed platform 21 is used to fix the rotary drive device 2; the drive motor 22 is connected to the drive gear 24, and the drive gear 24 meshes with the driven gear 14 to provide driving force for the rotation of the converter 1; the support structure 23 is used to support and fix the drive gear 24 to ensure good connection between the rotary drive device 2 and the converter 1.

[0027] The fixed platform 21 is arranged on a horizontal placement plane. The fixed platform 21 is a right trapezoid. The lower surface of the fixed platform 21 is parallel to the placement plane, and the upper surface of the fixed platform 21 is parallel to the converter 1. A driving motor 22 and a support structure 23 are arranged on the upper surface of the fixed platform 21. The driving motor 22 and the support structure 23 are arranged side by side. Specifically, the connection line between the driving motor 22 and the support structure 23 is parallel to the converter 1, and the driving motor 22 and the support structure 23 are placed vertically below the furnace body 11. The rotating shaft of the driving motor 22 passes through the central axis of the support structure 23. The support structure 23 is a pier block with a groove inside. A driving gear 24 is arranged in the groove of the support structure 23. The rotating shaft of the driving motor 22 passes through the support structure 23 and is connected to the driving gear 24. When the driving motor 22 is externally powered, the rotating shaft of the driving motor 22 drives the driving gear 24 to rotate. The outer edge teeth of the driving gear 24 are engaged with the outer edge teeth of the driven gear 14, and the driving gear 24 drives the driven gear 14 to rotate.

[0028] The support structure 23 can be made of materials such as metal, and there is no specific limitation. As long as it has a certain strength and can accommodate the driving gear 24.

[0029] A sliding contact power supply device 3 is arranged on the outer surface of the converter 1. The sliding contact power supply device 3 is used to supply power to the internal heat type rotary activation furnace system during the rotation of the converter 1. The sliding contact power supply device 3 includes a sliding contact coil 31, a power supply 32, and a support frame 33.

[0030] The sliding contact coil 31 is arranged on the outer wall of the furnace body 11 and forms an annular structure around the furnace body 11. The sliding contact coil 31 is composed of a plurality of mutually insulated guide rails. The sliding contact coil 31 is insulated from the outer surface of the furnace body 11 and is powered by sliding contact with the power supply 32, so as to ensure the normal operation of the pressure sensor arranged on the furnace body 11. More preferably, a plurality of wires are placed inside the sliding contact coil 31 to ensure connection with the furnace body 11; and on the outside, that is, on the side away from the furnace body 11, a guard plate is arranged to well cover the sliding contact coil, avoiding leakage of materials or spraying of fire from the steam pipe gap during the production process, thus affecting the normal operation of the sliding contact coil 31.

[0031] Below the sliding contact coil 31, a power supply 32 and a support structure 33 are provided. The lower end of the support structure 33 is arranged on the placement plane. The upper surface of the support structure 33 is parallel to the furnace body 11. The power supply 32 is arranged on one side of the support structure 33 close to the furnace body 11. The support structure 33 and the power supply 32 are insulated from each other. The power supply 32 is closely connected to the sliding contact coil 31, and the power supply 32 and the sliding contact coil 31 are electrically connected. When the power supply 32 is externally connected to a power source, the positive and negative electrodes of the power supply 32 are correspondingly connected to the positive and negative electrodes of the sliding contact coil 31, so as to ensure the power supply to the internal heating rotary activation furnace system.

[0032] A steam connection device 4 is further arranged outside the converter 1 to provide steam for the converter 1, ensure an effective activation reaction between the activation raw material 8 and the steam, and obtain activated coke. The steam connection device 4 includes a steam inlet pipe 41, a rotary joint 42, a rotary connection pipe 43, a steam ring pipe 44, a furnace wall pipe 45 and a steam injection connection pipe 46.

[0033] The steam inlet pipe 41 is arranged outside the discharge port 13 of the converter 1 in the extension direction of the center line of the converter 1 and coincides with the central axis of the converter 1. One side of the steam inlet pipe 41 is connected to a steam generating device or a steam recovery device to provide steam for the activation process.

[0034] One end of the rotary joint 42 is a fixed joint, and the other end is a rotatable rotary joint. And the rotary joint rotates centrally around the extension line where the fixed joint is located. The steam inlet pipe 41 is connected to the fixed interface of the rotary joint 42, and the rotary interface of the rotary joint 42 is connected to the rotary connection pipe 43. The rotary joint 42 drives the rotary connection pipe 43 to rotate, and the rotation direction is the same as that of the converter 1.

[0035] The rotary connection pipe 43 is fixed to the steam ring pipe 44 on the side far from the rotary joint. The steam ring pipe 44 is fixed to the outer surface of the converter 1, and the steam ring pipe 44 rotates following the rotation of the converter 1.

[0036] The steam ring pipe 44 is connected to a plurality of furnace wall pipes 45. The furnace wall pipes 45 are arranged on the outer surface of the converter 1. The furnace wall pipes 45 surround the furnace body 11 and are arranged at equal intervals. The furnace wall pipes 45 are straight pipes sealed on both sides. The length of the furnace wall pipes 45 is equal to the length of the furnace body 11. One end is flush with the feed port 12; the other end is flush with the discharge port 13. The middle position of the furnace wall pipes 45 is connected to the steam ring pipe 44.

[0037] One of the furnace wall tubes 45 is connected to a plurality of steam connection tubes 46. The steam connection tubes 46 are arranged at equal intervals in the circumferential and axial directions of the furnace body 11. The specific quantity is not limited and can be set according to the length and circumference of the furnace body 11.

[0038] More specifically, the driven gear 14, the sliding contact coil 31, and the steam ring tube 44 are all arranged on the outer side of the furnace wall tube 45, that is, the inner ring shapes of the driven gear 14, the sliding contact coil 31, and the steam ring tube 44 are adapted to the furnace body 11 where the furnace wall tube 45 is installed. And the relative positions among the driven gear 14, the sliding contact coil 31, and the steam ring tube 44 are not limited and can be set according to the actual situation, as long as it is ensured that there will be no collision among them, affecting the normal operation of each component.

[0039] The central processor is connected to multiple groups of the steam control devices 500. The quantity of the steam control devices 500 is any positive integer and is not specifically limited here. The steam control devices 500 are evenly arranged on the furnace wall of the furnace body 11, and the steam control devices 500 correspond one by one to the steam connection tubes 46 of the steam connection device. In this embodiment, the quantity of the steam control devices 500 is 256 or a multiple thereof. The 256 steam control devices 500 are evenly distributed on the furnace wall of the furnace body 1. The distribution quantity of the steam control devices 500 on the circular cross-section of the furnace body 1 is 8, and the cross-section distribution quantity of the steam control devices 500 on the furnace wall of the furnace body 1 in the axial direction is 32.

[0040] As Figure 3 shown, the steam control device 500 includes a steam injection hole 501, a steam spray head 502, a pressure sensor 503, and a steam switch valve 504. Since the steam control devices are evenly arranged on the furnace body 11, each steam injection hole 501, each steam spray head 502, each pressure sensor 503, and each steam switch valve 504 are also evenly arranged on the furnace body 11. The steam injection hole 501 is arranged on the inner wall of the furnace body 11. Both ends of the steam injection hole 501 are respectively communicated with the inner wall and the outer wall of the furnace body 11, and the water steam in the steam ring tube 44 is input into the interior of the furnace body 11. After the water steam contacts the activation raw material 8, a reaction occurs to obtain the required activated coke product.

[0041] The steam spray head 502 is arranged at the top of the steam injection hole 501 on the inner wall side of the furnace body 11. The steam spray head 502 is of a semi-circular structure, and a plurality of small holes are evenly distributed on the steam spray head 502. The steam spray head 502 is used to evenly spray the water steam from the steam injection hole 501 into the interior of the furnace body 11. The steam spray head 502 can also be provided with an anti-collision net. More specifically, the steam nozzle 502 can have various shape structures such as square, spherical, irregular, etc., and no specific limitation is made here.

[0042] The pressure sensor 503 is arranged around the steam injection hole 501 and is used to monitor the pressure of the activated raw material 8 on the inner wall of the furnace body 11. Specifically, it is used to obtain the pressure data at the position where the steam injection hole is located in real time. The pressure sensor 503 can be specifically arranged at any position within the range of the first radius value centered on the steam injection hole 501. The pressure sensor 503 is made of high-temperature resistant materials such as stainless steel, lithium niobate, alumina or quartz, etc., and no specific limitation is made.

[0043] The steam switch valve 504 is arranged at the connection between the steam injection hole 501 and the steam connection pipe 46, and the steam injection amount into the furnace body 11 can be adjusted through the steam switch valve 504. The steam switch valve 504 is electrically connected to the sliding contact coil 31, and the pressure sensor 503 is electrically connected to the sliding contact coil 31.

[0044] The central processor includes a control unit, and the control unit sends control commands to the rotary activation furnace to control the operation of the rotary furnace 1, the rotation drive device 2, the sliding contact power supply device 3, and the steam connection device 4 of the rotary activation furnace.

[0045] The central processor further includes a signal processing unit, a dynamic simulation unit, and an analysis unit. The signal processing unit is used to receive the monitoring data in the rotary activation furnace, including pressure data, and send the control commands generated by the central processor to the rotary activation furnace through the control unit. The dynamic simulation unit establishes a three-dimensional dynamic model based on the real-time pressure data detected by the pressure sensor 503. The analysis unit calculates the steam injection amount of the steam injection hole 501 of each steam control device 500 at the next moment.

[0046] The dynamic simulation unit establishes a three-dimensional dynamic model based on the real-time pressure data detected by the pressure sensor 503. The specific implementation process includes, Establishing a three-dimensional basic model of the furnace body 11; According to the positions of all the steam control devices 500 on the furnace body 11, corresponding marking points are set on the three-dimensional basic model to obtain a three-dimensional model; The real-time pressure data monitored by each of the steam control devices 500 is associated with the three-dimensional model in real time to obtain a three-dimensional dynamic model; the dynamic simulation unit monitors the pressure change on the inner wall of the furnace body 11 in real time according to the three-dimensional dynamic model to obtain the real-time distribution of the activation raw material 8 in the furnace body 11. The three-dimensional dynamic model includes the three-dimensional dynamic data of the rotary activation furnace, and the three-dimensional dynamic data includes the real-time pressure data of each marked point, the real-time distribution of the activation raw material 8, etc.

[0047] The analysis unit calculates the steam input amount at the next moment of the steam injection hole 501 of each steam control device 500 according to the three-dimensional dynamic data obtained from the three-dimensional dynamic model, generates a control command for the steam switch valve 504, and sends this command to the rotary activation furnace through the control unit to control the steam switch valve 504 and adjust the valve rotation angle.

[0048] The analysis unit includes a damage monitoring module. The damage monitoring module selects an abnormal pressure sensor 503 according to the three-dimensional dynamic data obtained from the three-dimensional dynamic model, and calculates the correct pressure data corresponding to the abnormal pressure sensor 503, that is, the replacement pressure data, according to the real-time pressure data of the pressure sensors 503 within a radius of the second threshold range centered on the abnormal pressure sensor 503.

[0049] During the rotation of the furnace body 11, the steam injection hole 501 is subject to the centrifugal force of the activation raw material. At the same time, during the rotation of the furnace body 11, when the activation raw material 8 covers the steam injection hole 501, the pressure received by the steam injection hole 501 under the influence of gravity will change. The pressure sensor 503 monitors the pressure at the corresponding steam injection hole 501 in real time, and transmits the monitored real-time pressure data to the dynamic simulation unit through the signal processing unit.

[0050] In this embodiment, the rotation process of the furnace body 11 is a constant-speed rotation, and the pressure received by the pressure sensor 503 changes with time during the rotation of the furnace body 11. The relationship between the pressure received by the pressure sensor 503 and time is as Figure 4 shown, where t’ is the time period required for the furnace body 11 to rotate one week, N’ is the pressure received by the pressure sensor 503 when it is not covered by the activation raw material 8, and this pressure is the centrifugal force generated by rotation; N1 and N2 are the maximum values of the pressure within two adjacent rotation periods respectively. The magnitudes of N1 and N2 depend on the weight of the activation raw material 8 passing through this pressure sensor 503 within the rotation period. In the case where the activation raw material 8 is unevenly distributed in the furnace body 11, the magnitudes of the maximum values of the pressure within different rotation periods are different, and the thicker the thickness of the activation raw material 8, the greater the maximum value of the pressure within the rotation period.

[0051] The analysis unit is connected to the dynamic simulation unit and the signal processing unit. The analysis unit calculates the amount of steam to be introduced into each steam injection hole 501 at the next moment according to the three-dimensional dynamic data in the three-dimensional dynamic model established by the dynamic simulation unit, determines the state of the steam switch valve 504 at the next moment, and the opening amplitude of the steam switch valve 504, that is, the rotation angle of the steam switch valve 504.

[0052] When the value of the pressure data in the three-dimensional dynamic data is greater than the first pressure threshold, there is activated raw material 8 at the position where the pressure sensor 503 corresponding to the pressure data is located. At this time, steam needs to be introduced at this position, that is, the steam switch valve 504 should be opened to allow steam to enter and contact the activated raw material 8 at this position for the activation reaction. When the value of the pressure data in the three-dimensional dynamic data increases, that is, the real-time pressure data is greater than the pressure data monitored by the pressure sensor at the previous moment, the quantity of the activated raw material 8 at this position is greater than the quantity of the activated raw material 8 at the previous moment. That is, the pressure data is positively correlated with the quantity of the activated raw material 8. The specific correlation coefficient or correlation equation can be input or adjusted through the input unit of the central processing unit. At this time, the opening amplitude of the steam switch valve 504 is increased. When the value of the pressure data in the three-dimensional dynamic data decreases, that is, the real-time pressure data is less than the pressure data monitored by the pressure sensor at the previous moment, the quantity of the activated raw material 8 at this position is less than the quantity of the activated raw material 8 at the previous moment. At this time, the opening amplitude of the steam switch valve 504 is reduced. When the three-dimensional dynamic data decreases to the first pressure threshold, there is no activated raw material 8 at this position. To avoid the reduction of the temperature in the furnace body 11 caused by excessive steam, the steam switch valve 504 is closed at this moment. When it is necessary to reduce the temperature in the furnace body 11, the steam switch valve 504 corresponding to the pressure data of the pressure sensor whose value is less than or equal to the first pressure threshold can also be selected to be opened, thereby reducing the temperature in the furnace body 11.

[0053] The first pressure threshold is a preset value, and the first pressure threshold is equal to the centrifugal force generated when the furnace body rotates, and can be input or modified according to the actual situation.

[0054] The damage monitoring module is connected to the dynamic simulation unit. The damage monitoring module calculates the replacement pressure data of the abnormal pressure sensor at different moments according to the three-dimensional dynamic data of consecutive moments, and sends the replacement pressure data at different moments to the dynamic simulation unit. The dynamic simulation unit uses the replacement pressure data as the pressure data corresponding to the abnormal pressure sensor, so as to ensure the normal operation of the entire device.

[0055] The dynamic simulation unit establishes a three-dimensional basic model of the furnace body 11. Specifically, using 3D modeling software, a three-dimensional coordinate system is established in the 3D dynamic model according to the geometric shape and dimensions of the furnace body 11, and the corresponding three-dimensional basic model of the furnace body 11 is established in the three-dimensional coordinate system.

[0056] The dimensions include data such as the height, length, thickness, inner diameter, and outer diameter of the furnace body 11.

[0057] The 3D modeling software includes, but is not limited to, SolidWorks, AutoCAD, etc. It should be noted that the 3D modeling software only needs to accurately reflect the geometric shape, dimensions, and internal structure of the furnace body.

[0058] According to the positions of all steam control devices 500 on the furnace body 11, marking points are correspondingly set on the three-dimensional basic model to obtain a three-dimensional model. Specifically, The pressure sensors in the furnace body are numbered respectively: A certain pressure sensor in the furnace body 11 is selected as the base point, denoted as C11; and it is numbered sequentially in the length direction of the furnace body 11, denoted as Cm1; and it is numbered sequentially in the counterclockwise rotation of the circular cross-section where C11 is located, denoted as C1n; and so on, all the pressure sensors in the furnace body 11 are numbered, denoted as Cmn. The pressure sensors are arranged at equal intervals in the length direction of the furnace body and at equal central angles in the same central cross-section.

[0059] In this embodiment, the base point is selected as a pressure sensor on the circular cross-section of the furnace body 11 closest to the feed port. And all the pressure sensors on the furnace body 11 are numbered as Cmn respectively. In this embodiment, 1 ≤ m ≤ 32 and 1 ≤ n ≤ 8; In the three-dimensional basic model, according to the distribution rule of the pressure sensors, simulated pressure sensors are added, and the pressure sensors in the furnace body are associated with the simulated pressure sensors, and the numbers of the pressure sensors are correspondingly marked on the simulated pressure sensors to obtain a three-dimensional model. Associating the pressure sensors in the furnace body with the simulated pressure sensors means corresponding the pressure sensors to the simulated pressure sensors one by one, including the correspondence of the positions and the synchronization of the rotations.

[0060] The real-time pressure data monitored by each steam control device 500 is associated with the three-dimensional model in real time to obtain a three-dimensional dynamic model. Specifically, The real-time pressure data of each pressure sensor 503 received by the signal processing unit are respectively sent to the corresponding simulated pressure sensors in the three-dimensional model. The dynamic simulation unit calculates the quantity of the activated raw material 8 on the simulated pressure sensors according to the pressure data of each simulated pressure sensor at the same moment, and fills the quantities of the activated raw material 8 on different simulated pressure sensors at the same moment, so as to obtain a three-dimensional dynamic model synchronized with the furnace body. The three-dimensional dynamic model can reflect the internal state of the furnace body in real time, including the distribution of the activated raw material 8.

[0061] According to the three-dimensional dynamic data in the three-dimensional dynamic model established by the dynamic simulation unit, the analysis unit calculates the steam inlet quantity of the steam injection holes 501 of each steam control device 500 at the next moment. The calculation can be carried out by the regional pairing method, and the specific calculation process is as follows. In the three-dimensional dynamic model, the analysis unit divides the furnace body in the three-dimensional dynamic model into A conveying sections of the activated raw material along the extending direction of the furnace body; The simulated pressure sensors in each conveying section are respectively in one-to-one correspondence with the simulated pressure sensors in the first conveying section; the first conveying section can be the conveying section with the smallest distance from the feed inlet; In the order from near to far from the first conveying section, each simulated pressure sensor in each conveying section is coupled with the simulated pressure sensor corresponding to the first conveying section; According to the pressure data of the simulated pressure sensor coupled with the target simulated pressure sensor, the pressure data of the target simulated pressure sensor at the target moment is calculated; According to the pressure data of the target simulated pressure sensor at the target moment, the steam inlet quantity of the steam injection hole 501 corresponding to the target simulated pressure sensor at the target moment is calculated. When the target moment is the next moment of the current moment, the steam inlet quantity of the steam injection hole 501 corresponding to the target simulated pressure sensor at the next moment is obtained.

[0062] Dividing the furnace body in the three-dimensional dynamic model into A conveying sections of the activated raw material includes: Select the simulated pressure sensors in the three-dimensional dynamic model, draw a line along the extending direction of the furnace body to obtain a division standard line; the division standard line has intersections with the lifting plates, that is, the division standard line intersects with the lifting plates with a quantity greater than or equal to 1.

[0063] According to the quantity of the intersections of the division standard line and the simulated pressure sensors, and the quantity of the intersections of the division standard line and the lifting plates, the quantity A of the conveying sections is calculated; it can also be calculated only according to the quantity of the intersections of the division standard line and the simulated pressure sensors, or according to the quantity of the intersections of the division standard line and the lifting plates. There is no specific limitation here. A is the common factor of the quantity of the intersections of the division standard line and the simulated pressure sensors and the quantity of the intersections of the division standard line and the lifting plates.

[0064] According to the number A of the conveying sections, make division marks on the division standard line. In the furnace body of the three-dimensional dynamic model, take the plane perpendicular to the furnace body of the three-dimensional dynamic model where the division marks are located as the cutting plane, and the area between every two adjacent cutting planes is a conveying section. The area between every two adjacent division marks is a division area. When the division marks at both ends of different division areas coincide, the corresponding lifting plates and the intersection points of the analog pressure sensors with the division standard line of each division area also coincide. In other words, the positions of the lifting plates and analog pressure sensors in each division area are the same as those in other division areas, that is, each division area is the same.

[0065] Couple each analog pressure sensor in each conveying section with the analog pressure sensor corresponding to the first conveying section in the order from near to far from the first conveying section. Specifically, it means associating each analog pressure sensor in each conveying section with the analog pressure sensor corresponding to the first conveying section in the order from near to far from the first conveying section. When there is a change among all the analog pressure sensors that are coupled between different conveying sections, all the coupled analog pressure sensors change accordingly.

[0066] When coupling the analog pressure sensors of different conveying sections, after each analog pressure sensor in each conveying section is coupled with the analog pressure sensor corresponding to the first conveying section, when the pressure data of the analog pressure sensor with a smaller distance from the feed inlet shows a first change at time G among the analog pressure sensors coupled between different conveying sections, the pressure data of the analog pressure sensor with a larger distance from the feed inlet shows a change related to the first change at time G + f * Q. Here, the related change includes equal value increase, equal multiple increase, equal value decrease, equal multiple decrease or other changes in the same form, which are not specifically limited here. Wherein, f represents the time required for the activated raw material to transfer the distance of one conveying section, and Q represents the number of intermediate conveying sections plus 1 between the conveying sections where two coupled analog pressure sensors are located.

[0067] When coupling each analog pressure sensor in each conveying section with the analog pressure sensor corresponding to the first conveying section in the order from near to far from the first conveying section, it may specifically include the following steps: Divide the analog pressure sensors on the same parallel line in each conveying section into multiple analog pressure surfaces according to the distance from the first analog pressure sensor, and obtain analog pressure surfaces with different distances from the first analog pressure sensor of the current conveying section on different conveying sections respectively; Couple the simulated pressure surfaces on each conveying section according to the distance from the first simulated pressure sensor of the current conveying section, that is, couple the simulated pressure surfaces with the same distance from the first simulated pressure sensor of the current conveying section in different conveying sections. The simulated pressure sensors on the mutually coupled simulated pressure surfaces will show relevant changes. Among the simulated pressure sensors on the mutually coupled simulated pressure surfaces in different conveying sections, couple the simulated pressure sensors on the same parallel line, that is, among the simulated pressure sensors on the simulated pressure surfaces of other conveying sections that are mutually coupled with the simulated pressure surface of the first conveying section, couple the simulated pressure sensors on the same parallel line as the first conveying section.

[0068] The simulated pressure sensors on the mutually coupled simulated pressure surfaces in other conveying sections The parallel line refers to a straight line that intersects the simulated pressure sensor and is parallel to the furnace body 11. The simulated pressure sensor with the smallest distance from the feed inlet on each conveying section can be used as the first simulated pressure sensor. The simulated pressure surface is a plane that intersects the target simulated pressure sensor and is perpendicular to the furnace body 11. Each simulated pressure surface includes at least 4 simulated pressure sensors on the circular edge where it intersects the inner wall of the furnace body 11.

[0069] The simulated pressure sensors on the same parallel line in each conveying section refer to When calculating the pressure data of the target simulated pressure sensor at the target moment: the analysis unit determines the pressure data of the target simulated pressure sensor at the target moment according to the pressure data of the simulated sensors that are mutually coupled with the target simulated pressure sensor at different moments. Here, the simulated sensors that are mutually coupled with the target simulated pressure sensor refer to the simulated pressure sensors that are mutually coupled with the target simulated pressure sensor and have a distance from the feed inlet smaller than the distance from the target simulated pressure sensor to the feed inlet.

[0070] The analysis unit determines the quantity of activated raw materials at the position of the target simulated pressure sensor at the target moment according to the pressure data of the target simulated pressure sensor at the target moment, and then calculates the required steam quantity at the position corresponding to the target simulated pressure sensor at the target moment according to the quantity of activated raw materials at the position of the target simulated pressure sensor at the target moment, that is, obtains the steam inlet quantity required at the steam injection hole 501 at the position of the target simulated pressure sensor at the target moment.

[0071] When coupling the simulated pressure sensors of different conveying sections, it also includes setting jump anchors on each simulated pressure sensor, and the jump anchors are used for the quick selection of mutually coupled simulated pressure sensors. Specifically, jump anchors are respectively set on the simulated pressure sensors, and the jump anchors on the mutually coupled simulated pressure sensors are the same, while the jump anchors on the uncoupled simulated pressure sensors are different.

[0072] Set jump anchors on each simulated pressure sensor, specifically including the following steps: Divide the simulated pressure sensors in the three-dimensional dynamic model into multiple groups according to the coupling relationship; Establish the positioning relationship of the same jump anchor for the simulated pressure sensors in the same group, that is, set the same jump anchor on the simulated pressure sensors in the same group.

[0073] The same jump anchor includes an associated jump relationship and a jump color palette. When the jump anchor on a certain simulated pressure sensor is triggered, the jump color palettes of the simulated pressure sensors with the same jump anchor display the same specified color, so as to prominently display in the three-dimensional dynamic model.

[0074] The jump color palette can include multiple colors, and different jump anchors display different colors.

[0075] When calculating the pressure data of the target simulated pressure sensor at the target moment: the analysis unit triggers the jump anchor of the target simulated pressure sensor, and the jump color palettes of the jump anchors that are the same as the jump anchor of the target simulated pressure sensor display the same specified color, so that the analysis unit can quickly select the simulated pressure sensors that are coupled with the target simulated pressure sensor in the three-dimensional dynamic model, and accelerate the reaction speed of the analysis unit (central processing unit).

[0076] The dynamic simulation unit also verifies and optimizes the three-dimensional dynamic model: After the three-dimensional dynamic model is established, it needs to be verified and optimized to ensure its accuracy and reliability. The verification of the three-dimensional model can be achieved by comparing with the actual situation, or by using methods such as comparing the real-time pressure data and historical pressure data of each corresponding marked point of the pressure sensor 503.

[0077] The historical pressure data is the set of pressure data of all pressure sensors 503 during the normal operation of the three-dimensional dynamic model in multiple rotation cycles before the current time of the furnace body 1. The historical pressure data is not fixed because of the non-uniform distribution of the activated raw material 8 in the furnace body 11. The pressure data of each cycle at the fixed marked point in the historical pressure data will be different, and the pressure data of each fixed cycle at each marked point will also be different. However, when the rotation speed remains unchanged, the pressure N' when the pressure sensor 503 in the historical pressure data is not covered by the activated raw material 8 remains unchanged. The maximum pressure values of different marked points in the same cycle are different, and the maximum pressure values of the same marked point in different cycles are different.

[0078] The model can be verified by comparing the real-time pressure data and historical pressure data of the corresponding marked points of each of the pressure sensors 503, and the model can also be adjusted and optimized accordingly to improve its accuracy and practicality.

[0079] At this time, we obtain a three-dimensional dynamic model with a certain pressure sensor 503 as the base point S11, and number and position each pressure sensor 503 on the furnace body 11.

[0080] The pressure distribution on each of the numbered pressure sensors 503 is as Figure 5 shown. On the regularly arranged and numbered pressure sensors 503, the pressure distribution shows a periodic change pattern. When the rotation speed is constant, the pressure received by each of the pressure sensors 503 when not covered by the activated raw material 8 is always N'. The maximum pressures Na and Nb within adjacent change cycles of a single pressure sensor 503 are not necessarily the same. The maximum pressures within different change cycles reflect the distribution of the activated raw material 8 inside the furnace body 11 at the current time point.

[0081] The process by which the analysis unit controls the opening and closing of the steam switch valve 504 includes: Number the steam switch valve 504: Each group of steam control devices 500 includes a pressure sensor 503 and a corresponding steam switch valve 504. All the pressure sensors 503 and steam switch valves 504 have a one-to-one correspondence relationship. Therefore, the number Cmn of each pressure sensor 503 can be corresponded to the number of the steam switch valve 504 corresponding to it, and the number of the steam switch valve 504 is set as Tmn. The number Cmn of each pressure sensor 503 and the number Tmn of each steam switch valve correspond one-to-one.

[0082] The analysis unit includes a pressure threshold. During the rotation of the converter 1, the pressure sensor 503 arranged on the inner wall surface of the furnace body 11 can always receive the centrifugal force generated by the rotation of the converter 1. Therefore, a pressure threshold needs to be set. The pressure threshold should ensure that when the converter 1 rotates, the pressure threshold is always greater than the centrifugal force received by the pressure sensor 503.

[0083] The pressure threshold can be set independently or set according to the pressure N' when the activated raw material 8 does not cover the pressure sensor 503 in the historical pressure data of the three-dimensional dynamic model. The pressure threshold should be slightly greater than N', specifically it can be N'+d, where d is any value greater than zero.

[0084] The pressure threshold can be set to a fixed value or set dynamically.

[0085] When the pressure threshold is set dynamically, a corresponding pressure threshold can be set for each pressure sensor 503. The pressure threshold corresponding to each pressure sensor 503 should refer to the historical pressure data of the marked point corresponding to this pressure sensor 503 and the periodic historical data of the marked points corresponding to adjacent pressure sensors 503. The pressure threshold should ensure that when the converter 1 rotates, the pressure threshold is always greater than the centrifugal force received by the pressure sensor 503.

[0086] The analysis unit determines whether the steam switch valve 504 should be opened or closed according to the distribution of the activated raw material 8, and calculates the opening amplitude of the steam switch valve 504. Specifically, Compare the pressure signal of the pressure sensor 503 numbered Cmn with the pressure threshold. When the pressure signal of the pressure sensor 503 numbered Cmn is greater than the pressure threshold, the steam switch valve 504 (steam switch valve 504 numbered Tmn) corresponding to the pressure sensor 503 of Cmn is opened, and the opening amplitude of the steam switch valve 504 numbered Tmn is controlled according to the magnitude of the pressure signal of the pressure sensor 503 numbered Cmn. The pressure signal of the pressure sensor 503 numbered Cmn is proportional to the opening angle of the steam switch valve 504 numbered Tmn, that is, the greater the pressure signal of the pressure sensor 503 numbered Cmn, the greater the opening amplitude of the steam switch valve 504 numbered Tmn, and the smaller the pressure, the smaller the opening amplitude of the steam switch valve 504 numbered Tmn. When the pressure signal of the pressure sensor 503 numbered Cmn is less than or equal to the pressure threshold, the analysis unit controls the corresponding steam switch valve 504 numbered Tmn to close.

[0087] The analysis unit includes a reaction time. The analysis unit establishes a prediction model and optimizes the control process according to the pre-reaction time.

[0088] The pre-reaction time is equal to the sum of the time required for the signal transmission, information processing, and valve opening and closing processes during the process of the analysis unit controlling the opening and closing of the steam switch valve 504. The analysis unit advances the determined moment of sending control to the steam switch valve 504 by a reaction time as the final moment of sending control to the steam switch valve 504, that is, the control moment.

[0089] The pre-reaction time can be preset in the analysis unit, and the pre-reaction time is adjusted according to factors such as the rotation speed of the furnace body 11 and the signal transmission, information processing, and valve opening and closing processes.

[0090] The analysis unit establishes a prediction model based on the dynamic data tags of each marker point, the historical pressure data of adjacent marker points, and the pressure data of the current marker point at the current time node in the three-dimensional dynamic model, and predicts the pressure data corresponding to each marker point in the three-dimensional dynamic model at the pre-reaction time node.

[0091] By setting the pre-reaction time and establishing a prediction model, the steam switch valve 504 is accurately controlled.

[0092] The damage monitoring module is used to verify the data received from each pressure sensor in the dynamic simulation unit. The damage monitoring module compares the real-time pressure data of each current marker point with the historical pressure data, the historical pressure data of each marker point with the historical pressure data of adjacent sensors, the real-time pressure distribution data of all pressure points with the historical pressure distribution data, and the pressure data predicted by the prediction model with the actual pressure data to identify any abnormal data and the number of the pressure sensor 503 corresponding to the abnormal data.

[0093] If the absolute value of the difference between the reading of a certain pressure sensor and its historical trend or the readings of other sensors is greater than the first abnormal threshold, then there is a significant difference in the reading of this pressure sensor, and it is determined that this pressure sensor is damaged. As Figure 6 shown, there is a significant difference between the sensor reading of the pressure sensor 503 numbered S25 and the readings of adjacent sensors. Therefore, it can be basically judged that the pressure sensor numbered S25 has been damaged.

[0094] The judgment process of the damage monitoring module for whether the pressure sensor is damaged is specifically as follows: The damage monitoring module collects the real-time pressure data, historical pressure data of each pressure sensor in the three-dimensional dynamic model, the real-time pressure distribution data of all pressure sensors, and the historical pressure distribution data of all pressure sensors, and based on these data, confirms the pressure change patterns and trends between the pressure sensors.

[0095] The damage monitoring module determines potential abnormal pressure sensors according to the pressure data of each pressure sensor collected in the dynamic simulation unit. Specifically, the damage monitoring module compares the real-time pressure data of each current marker point with the historical pressure data, the historical pressure data of each marker point with the historical pressure data of adjacent sensors, the real-time pressure distribution data of all pressure points with the historical pressure distribution data, and the pressure data predicted by the prediction model with the actual pressure data. When the absolute value of the difference between the pressure data of the pressure sensor and the above data is greater than the second abnormal threshold, then this pressure sensor is a potential abnormal pressure sensor.

[0096] When the pressure data of the potential abnormal pressure sensor, within the abnormal time threshold, and the absolute value of the difference from the above data are all greater than the second abnormal threshold, then the pressure sensor is damaged.

[0097] When the damage monitoring module determines that one or more pressure sensors are damaged, the damage monitoring module triggers an alarm mechanism. The alarm mechanism includes displaying a warning message on the user interface of the system, sending an email or text message notification to relevant personnel, or notifying through other communication means.

[0098] When the damage monitoring module indicates that a pressure sensor is damaged, the damage monitoring module performs data simulation on the data of the damaged pressure sensor.

[0099] The damage monitoring module calculates the real-time pressure data generated by the damaged sensor under normal operating conditions based on the historical pressure data of the damaged sensor 503, the historical pressure data of adjacent sensors, and the real-time pressure data, to obtain replacement pressure data, so as to provide correct pressure data during the period when the pressure sensor is damaged and maintain the operation of the rotary activation furnace.

[0100] The damage monitoring module verifies the replacement pressure data. The verification process includes comparing the replacement pressure data with known normal data and running the rotary activation furnace using the replacement pressure data and checking whether its output results meet the first standard, thereby ensuring the accuracy and reliability of the replacement pressure data.

[0101] The damage monitoring module applies the replacement pressure data to the activated rotary furnace. Before the damaged pressure sensor is repaired or replaced, the damage monitoring module uses the replacement pressure data as the pressure data of the damaged pressure sensor to keep the activated rotary furnace running normally.

[0102] The damage monitoring module effectively monitors the operation of each pressure sensor. In the case of a damaged pressure sensor, it ensures the normal operation of the steam switch valve through replacement pressure data, thereby guaranteeing the stable operation of the entire rotary activation furnace.

[0103] An internal heat type rotary activation furnace for intelligently controlling the steam intake provided by the present invention sends water steam into the furnace through the steam injection holes provided on the inner wall of the rotary furnace. At the same time, a pressure sensor is provided at one end of the water steam of the steam injection hole to monitor the amount of activation raw materials at the position where the steam injection hole is located, and according to the pressure data in the three-dimensional dynamic model that is closer to the feed inlet than this steam injection hole, the quantity of activation raw materials at this steam injection hole at a future moment is deduced, and the required amount of water steam is accurately calculated, realizing the precise control of the water steam intake, improving the utilization rate of water steam, the activation effect and the activation efficiency. At the same time, by precisely controlling the input amount and distribution of steam, it is ensured that the carbonized material is in full contact with the steam, improving the reaction efficiency, saving energy, and improving the quality of the activated carbon product. When the pressure sensor is abnormal, the monitoring data of the pressure sensor can be deduced to avoid affecting the normal operation of the rotary activation furnace due to the abnormality of an individual pressure sensor. In addition, when the analysis unit selects the simulated pressure sensors, the furnace body in the three-dimensional dynamic model is divided into multiple intervals by the regional pairing method, realizing the accurate prediction of the pressure data with a relatively small amount of calculation; and the same jump anchor is added to the mutually coupled simulated pressure sensors, so that when the analysis unit selects the mutually coupled simulated pressure sensors, the selection time is reduced, thereby improving the reaction speed of the system.

[0104] The above content is an illustration of the preferred embodiments of the present invention, which can help those skilled in the art to more fully understand the technical solution of the present invention. However, these embodiments are only examples and cannot be considered that the specific implementation manners of the present invention are limited to the description of these embodiments. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions and transformations can be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. An internal heating rotary activation furnace system with intelligent steam intake control, comprising a rotary activation furnace and a central processing unit, characterized in that: The rotary activation furnace includes a converter and multiple steam control devices respectively connected to a central processing unit. The steam control device comprises a steam injection hole, a pressure sensor and a steam switch valve. The steam injection hole is arranged on the inner wall of the furnace body of the converter to input water vapor into the furnace body of the converter. The pressure sensor is arranged around the steam injection hole to obtain the pressure data of the position of the steam injection hole in real time. The steam switch valve adjusts the amount of steam injected into the furnace body through the steam injection hole. The central processing unit includes a control unit, a signal processing unit, a dynamic simulation unit and an analysis unit. The control unit sends a control command to the rotary activation furnace to control the rotary activation furnace; the signal processing unit is used to receive the monitoring data in the rotary activation furnace, and send the control command generated by the central processing unit to the rotary activation furnace through the control unit; the dynamic simulation unit establishes a three-dimensional dynamic model based on the real-time pressure data detected by the pressure sensor; the analysis unit uses the regional duality method to calculate the required water vapor input amount for each steam nozzle at the next moment based on the three-dimensional dynamic data of the three-dimensional dynamic model, and determines the opening amplitude of the steam switch valve.

2. According to claim 1, an internal heating rotary activation furnace system with intelligent steam intake control is characterized in that: The inner wall of the furnace body is provided with a lifting plate, and the lifting plate lifts and stirs the activated raw material and pushes the activated raw material to move from the feed port to the discharge port; the lifting plates are evenly distributed on the inner wall of the furnace body.

3. According to claim 1, an internal heating rotary activation furnace system with intelligent steam intake control is characterized in that: The pressure sensor is arranged at any position within a first radius range with the steam injection hole as the center.

4. According to claim 1, an internal heating rotary activation furnace system with intelligent steam intake control is characterized in that: The pressure sensors are arranged at equal intervals in the length direction of the furnace body and at equal central angles in the same central section.

5. The internal heating rotary activation furnace system with intelligent steam intake control according to claim 2 or 4, characterized in that: The dynamic simulation unit establishes a three-dimensional dynamic model according to the real-time pressure data detected by the pressure sensor. The specific implementation process includes: Establishing a three-dimensional basic model of the furnace body; According to the positions of all steam control devices on the furnace body, corresponding marking points are set on the three-dimensional basic model to obtain a three-dimensional model; The real-time pressure data monitored by each steam control device is associated with the three-dimensional model in real time to obtain a three-dimensional dynamic model.

6. According to claim 5, an internal heating rotary activation furnace system with intelligent steam intake control is characterized in that: The analysis unit calculates the required water vapor input amount of each steam injection hole at the next moment by using the regional dual method according to the three-dimensional dynamic data of the three-dimensional dynamic model. The specific calculation process is as follows: The analyzing unit divides the furnace body in the three-dimensional dynamic model into A activated raw material conveying sections according to the extension direction of the furnace body in the three-dimensional dynamic model; The analog pressure sensors in each conveying section correspond to the analog pressure sensors in the first conveying section one by one; In order from near to far from the first conveying section, each analog pressure sensor in each conveying section is coupled with the analog pressure sensor corresponding to the first conveying section; Calculating the pressure data of the target analog pressure sensor at the target time according to the pressure data of the analog pressure sensor coupled to the target analog pressure sensor; According to the pressure data of the target simulation pressure sensor at the target time, the water vapor input amount of the steam injection hole corresponding to the target simulation pressure sensor at the target time is calculated.

7. According to claim 6, an internal heating rotary activation furnace system with intelligent steam intake control is characterized in that: The furnace body in the three-dimensional dynamic model is divided into A activated raw material conveying sections, including: Select the simulated pressure sensor in the three-dimensional dynamic model, draw a line along the extension direction of the furnace body, and obtain a dividing standard line; Calculate the number A of conveying sections according to the number of intersections between the dividing standard line and the analog pressure sensor, and the number of intersections between the dividing standard line and the lifting plate; According to the number A of conveying sections, a dividing mark is made on the dividing standard line. In the furnace body of the three-dimensional dynamic model, the plane where the dividing mark is located and is perpendicular to the furnace body of the three-dimensional dynamic model is the cutting plane, and the area between every two adjacent cutting planes is a conveying section.

8. The internal heating rotary activation furnace system with intelligent steam intake control according to claim 7, characterized in that: When coupling analog pressure sensors of different conveying sections, a jump anchor is set on each analog pressure sensor. The jump anchors on the mutually coupled analog pressure sensors are the same, and the jump anchors on the uncoupled analog pressure sensors are different. The jump anchors are used for quick selection of the mutually coupled analog pressure sensors.

9. The internal heating rotary activation furnace system with intelligent steam intake control according to claim 8, characterized in that: Setting a jump anchor on each analog pressure sensor includes the following steps: Dividing the simulated pressure sensors in the three-dimensional dynamic model into a plurality of groups according to coupling relationships; A positioning relationship of the same jump anchor mark is established for the analog pressure sensors in the same group, that is, the same jump anchor mark is set on the analog pressure sensors in the same group.

10. The internal heating rotary activation furnace system with intelligent steam intake control according to claim 9, characterized in that: The same jump anchor includes an associated jump relationship and a jump color palette. When the jump anchor on a certain analog pressure sensor is triggered, the jump color palette of the analog pressure sensor with the same jump anchor displays the same specified color.

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