Desulfurization and denitration activated carbon carbonization furnace with temperature control system

Abstract

The application discloses a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system, which comprises a feeding hopper, a feeding valve, a preheating box, a stirring mechanism, a stirring motor, a heating mechanism one, a temperature sensor one, a discharge pipe one, a valve one, a carbonization box, a stirring mechanism, a stirring motor, a heating mechanism two, a temperature sensor two, a discharge pipe two, a valve two, a cooling box, a screw rod, a screw rod motor, a cooling jacket, a refrigerant inlet pipe, a refrigerant outlet pipe, a temperature sensor three, a discharge pipe, an exhaust pipe and a PLC controller and the like structures. Through the three-stage structure (preheating, carbonization and cooling), precise temperature control is realized, the stirring mechanism, the stirring mechanism and the spiral cooling water channel are combined to improve the uniformity of material processing; the PLC controller integrates the multi-section temperature sensor and the execution element, automatically adjusts the heating, cooling and conveying parameters, significantly improves the activated carbon pore development quality and the desulfurization and denitrification efficiency, and reduces the energy consumption and pollution emission.

Description

Technical Field

[0001] This application relates to the field of desulfurization and denitrification activated carbon production technology, and in particular to a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system. Background Technology

[0002] Temperature fluctuations inside the carbonization furnace directly affect the pore structure development and desulfurization and denitrification effects of activated carbon. Traditional carbonization furnaces suffer from unstable temperature control during the desulfurization and denitrification process, leading to inconsistent product quality. To address this issue, a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system is provided. Utility Model Content

[0003] This application provides a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system. It adopts a three-stage independent intelligent temperature control (preheating, carbonization, and cooling) technology. Under the intelligent control of the PLC controller, it realizes the segmented carbonization treatment of the desulfurization and denitrification activated carbon material that needs to be carbonized, so that the temperature control of each stage is stable, thereby ensuring the consistency of product quality.

[0004] This application provides a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system, including a preheating section, a carbonization section, and a cooling section. The preheating section includes a feed hopper with a feed valve. The output end of the feed hopper is connected to a preheating box. A stirring mechanism is installed inside the preheating box, and a stirring motor is connected to the input end of the stirring mechanism. A heating mechanism is installed at the bottom of the preheating box, and a temperature sensor is installed at the top of the preheating box. A discharge pipe is connected to the output end of the preheating box, and a valve is installed on the discharge pipe. The end of the discharge pipe is connected to the carbonization section. The carbonization section includes a carbonization box with a stirring mechanism inside. A stirring motor is connected to the input end of the stirring mechanism. A second heating mechanism is installed at the bottom of the carbonization box, and a third heating mechanism is installed at the top of the carbonization box. There is a second temperature sensor. The output end of the carbonization box is connected to a second discharge pipe, which is equipped with a second valve. The end of the second discharge pipe is connected to the cooling section. The cooling section includes a cooling box, inside which is a screw. The input end of the screw is connected to a screw motor. The cooling box is wrapped with a cooling jacket. The cooling jacket has a refrigerant outlet pipe and a refrigerant inlet pipe arranged sequentially from front to back. The cooling box is equipped with a third temperature sensor. The output end of the cooling box is connected to a discharge pipe, and the top of the discharge pipe is equipped with an exhaust pipe. The feed valve, stirring motor, heating mechanism one, temperature sensor one, valve one, stirring motor, heating mechanism two, temperature sensor two, valve two, screw motor and temperature sensor three wires are connected to the same PLC controller.

[0005] Furthermore, the screw motor is specifically a servo motor.

[0006] Furthermore, an air inlet pipe is installed on the top of the carbonization box.

[0007] Furthermore, the end of the exhaust pipe is connected to the exhaust gas purification device.

[0008] Furthermore, the interior of the cooling jacket features a "spring-shaped" spiral water channel.

[0009] As can be seen from the above technical solutions, this application provides a desulfurization and denitrification activated carbon carbonization furnace with a temperature control system, including a preheating section, a carbonization section, and a cooling section. The preheating section includes a feeding hopper and a feeding structure through which desulfurization and denitrification activated carbon material to be carbonized is fed into the equipment. The feeding hopper is equipped with a feeding valve for control. Under the control of a PLC controller, the opening and closing of the internal channel of the feeding hopper is controlled. The valve remains open during the feeding process to facilitate feeding, and closes after feeding to achieve the purpose of heat preservation, reduce temperature loss in the preheating section, improve the preheating efficiency of the preheating section, ensure the preheating effect of the preheating section, and thus improve production efficiency. The outlet is connected to a preheating box, a container for preheating the desulfurization and denitrification activated carbon material that needs carbonization. The preheating box is equipped with a stirring mechanism to agitate the activated carbon, ensuring it moves evenly within the preheating box and receives heating from the heating mechanism, thus improving heating efficiency. The stirring mechanism's input is connected to a stirring motor with a kinetic energy output structure, providing kinetic energy support for its stirring operation. The bottom of the preheating box is equipped with a heating mechanism that heats the activated carbon material after it enters the preheating box, thereby preheating the desulfurization and denitrification material. The activated carbon material undergoes heating treatment to bring the temperature of the desulfurization and denitrification activated carbon material to the required carbonization temperature, thereby improving the carbonization efficiency of the activated carbon material in the carbonization section. A temperature sensor is installed on the top of the preheating box for monitoring the temperature inside the preheating box in real time and transmitting the monitored temperature information back to the PLC controller. The PLC controller compares the transmitted temperature value with the threshold value input on the PLC controller. When the transmitted temperature value is lower than the input threshold, the heating mechanism is controlled to heat the preheating box; when the transmitted temperature value is equal to or higher than the input threshold, the heating mechanism is controlled to heat the box. The heating mechanism stops heating a pair of preheating boxes. The output end of the preheating box is connected to a discharge pipe. The preheated desulfurized and denitrified activated carbon material that needs to be carbonized is discharged to the pipeline of the carbonization section. A valve is installed on the discharge pipe to control the opening and closing of the internal channel of the discharge pipe under the control of the PLC controller, so as to realize the batch carbonization treatment of the desulfurized and denitrified activated carbon material that needs to be carbonized. This allows the preheating process of the preheating section and the carbonization process of the preheated desulfurized and denitrified activated carbon material to be carbonized to be carried out simultaneously, thereby achieving the purpose of high-efficiency production. The end of the discharge pipe is connected to the carbonization section.The carbonization section includes a carbonization box, a container for carbonizing preheated desulfurization and denitrification activated carbon. The carbonization box is equipped with a stirring mechanism to agitate the preheated activated carbon, ensuring more even heating and complete contact with the introduced activation gases (carbon dioxide and water vapor), thereby improving carbonization efficiency. The stirring mechanism is connected to a stirring motor with a kinetic energy output structure, providing power for its agitation function. A second heating mechanism is located at the bottom of the carbonization box to heat the preheated activated carbon, ensuring continuous carbonization. A second temperature sensor is installed at the top of the carbonization box for real-time monitoring. The temperature inside the carbonization chamber is monitored, and the monitored temperature information is transmitted back to the PLC controller in real time. The PLC controller compares the transmitted temperature value with the threshold value input on the PLC controller. When the transmitted temperature value is lower than the input threshold value, the heating mechanism 2 is controlled to heat the carbonization chamber. When the transmitted temperature value is equal to or higher than the input threshold value, the heating mechanism 2 is controlled to stop heating the carbonization chamber. This achieves energy saving while ensuring the normal progress of the carbonization reaction. The output end of the carbonization chamber is connected to the discharge pipe 2. After carbonization, the desulfurized and denitrified activated carbon is discharged into the cooling section. The discharge pipe 2 is equipped with valve 2, which plays a control role. Under the control of the PLC controller, the opening and closing of the internal channel of the discharge pipe 2 is controlled. During the carbonization process, it is kept closed to ensure that the carbonization reaction in the carbonization chamber is complete. After carbonization, it is opened to allow the carbonized desulfurized and denitrified activated carbon to enter the cooling section sequentially from the discharge pipe 2. The end of the discharge pipe 2 is connected to the cooling section.The cooling section includes a cooling chamber, a container for cooling the carbonized desulfurized and denitrified activated carbon. Inside the cooling chamber is a screw conveyor. Under the action of the screw motor, the carbonized desulfurized and denitrified activated carbon, continuously discharged from discharge pipe two, is sequentially and orderly conveyed from the end of discharge pipe two to the discharge pipe. During the conveying process, the carbonized desulfurized and denitrified activated carbon undergoes cooling treatment, ensuring that its temperature reaches room temperature when discharged from the discharge pipe, facilitating collection. The screw input end is connected to a screw motor, and the kinetic energy output structure powers the screw's conveying function. The cooling chamber is powered by a cooling jacket. Refrigerant flows through channels within the chamber, carrying away heat and thus reducing the temperature of the carbonized desulfurized and denitrified activated carbon. The cooling jacket has a refrigerant outlet pipe and a refrigerant inlet pipe, arranged sequentially from front to back. The refrigerant outlet pipe is where the refrigerant flows out of the cooling jacket, and the refrigerant inlet pipe is where the refrigerant enters the cooling jacket. The cooling chamber is equipped with three temperature sensors for real-time monitoring of the internal temperature. The monitored temperature information is transmitted back to the PLC controller in real time. The PLC controller compares the transmitted temperature value with the threshold value input on the PLC controller to control the refrigerant flow rate, ensuring effective cooling of the carbonized desulfurized and denitrified activated carbon. The cooling box output is connected to a discharge pipe, through which the cooled carbonized activated carbon is discharged. An exhaust pipe is installed at the top of the discharge pipe to discharge the generated waste gas. The components include: feed valve, stirring motor, heating mechanism 1, temperature sensor 1, valve 1, stirring motor, heating mechanism 2, and temperature sensor. II. Valve II, screw motor, and temperature sensor are connected to the same PLC controller for control. The advanced PLC control system controls the feed valve, stirring motor, heating mechanism I, temperature sensor I, valve I, stirring motor, heating mechanism II, temperature sensor II, valve II, screw motor, and temperature sensor III to work together. Utilizing three-stage independent intelligent temperature control (preheating, carbonization, and cooling) technology, it achieves segmented carbonization of the desulfurization and denitrification activated carbon material, ensuring stable temperature control in each stage and guaranteeing consistent product quality.

[0010] In summary, the beneficial effects of this application are as follows:

[0011] 1. It adopts a three-stage independent intelligent temperature control (preheating, carbonization, and cooling) technology. Under the intelligent control of the PLC controller, it realizes the segmented carbonization treatment of desulfurization and denitrification activated carbon materials that need carbonization treatment, so that the temperature control of each stage is stable and the consistency of product quality is guaranteed.

[0012] 2. The cooling jacket adopts a spiral water channel design, which allows the refrigerant to flow through every part of the cooling chamber wall, extending the refrigerant's time in the cooling jacket, resulting in uniform cooling and high cooling efficiency. 3. A PLC intelligent control system is used, reducing manual operation and achieving fully automated control of the entire process, improving control efficiency and thus increasing production efficiency. Attached Figure Description

[0013] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the implementation examples will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this application.

[0015] Figure 2 This is a schematic diagram of the PLC controller structure in this application.

[0016] Illustration:

[0017] Among them, 1-feed hopper, 2-feed valve, 3-preheating box, 4-stirring mechanism, 5-stirring motor, 6-heating mechanism one, 7-temperature sensor one, 8-discharge pipe one, 9-valve one, 10-carbonization box, 11-tumbling mechanism, 12-tumbling motor, 13-heating mechanism two, 14-temperature sensor two, 15-discharge pipe two, 16-valve two, 17-cooling box, 18-screw, 19-screw motor, 20-cooling jacket, 21-refrigerant inlet pipe, 22-refrigerant outlet pipe, 23-temperature sensor three, 24-discharge pipe, 25-exhaust pipe, 26-PLC controller. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0019] From the above technical solutions, it can be seen that:

[0020] Example 1:

[0021] See Figure 1 , Figure 2 .

[0022] A desulfurization and denitrification activated carbon carbonization furnace with a temperature control system includes a preheating section, a carbonization section, and a cooling section. The preheating section includes a feeding hopper 1 and a feeding structure through which desulfurization and denitrification activated carbon material to be carbonized is fed into the equipment. A feeding valve 2 is installed on the feeding hopper 1 for control. Under the control of a PLC controller 26, the valve controls the opening and closing of the internal channel of the feeding hopper 1. The valve remains open during feeding to facilitate material feeding and closes after feeding to maintain temperature, reduce temperature loss in the preheating section, improve preheating efficiency, and ensure the preheating effect, thereby increasing production efficiency. The output end of the feeding hopper 1 is connected to a preheating box 3 for carbonizing activated carbon. The container for preheating desulfurization and denitrification activated carbon is a preheating box 3. An internal stirring mechanism 4 is installed to agitate the activated carbon within the preheating box 3, ensuring it is evenly heated by the heating mechanism 6, thus improving heating efficiency. A stirring motor 5, with a kinetic energy output structure, is connected to the input end of the stirring mechanism 4 to provide kinetic energy support for its agitation operation. The heating mechanism 6 is located at the bottom of the preheating box 3, heating the activated carbon before it enters the box. The process ensures that the activated carbon material undergoing carbonization reaches the required carbonization temperature, thereby improving the carbonization efficiency of the activated carbon material in the carbonization section. A temperature sensor 7 is installed on the top of the preheating box 3 for monitoring the temperature inside the preheating box 3 in real time. The monitored temperature information is transmitted back to the PLC controller 26 in real time, allowing the PLC controller 26 to compare the transmitted temperature value with the threshold value input to the PLC controller 26. When the transmitted temperature value is lower than the input threshold, the heating mechanism 6 is controlled to heat the preheating box 3; when the transmitted temperature value is equal to or higher than the input threshold, the heating mechanism 6 is controlled to heat the preheating box 3. The preheating box 3 is stopped by the structure 6. The output end of the preheating box 3 is connected to the discharge pipe 8. The desulfurization and denitrification activated carbon material that needs to be carbonized after preheating is discharged to the pipeline of the carbonization section. The discharge pipe 8 is equipped with a valve 9, which plays a control role. Under the control of the PLC controller 26, the opening and closing of the internal channel of the discharge pipe 8 is controlled to realize the batch carbonization treatment of the desulfurization and denitrification activated carbon material that needs to be carbonized. This allows the preheating process of the desulfurization and denitrification activated carbon material that needs to be carbonized in the preheating section and the carbonization process of the desulfurization and denitrification activated carbon material that needs to be carbonized in the carbonization section to be carried out simultaneously, thereby achieving the purpose of high-efficiency production. The end of the discharge pipe 8 is connected to the carbonization section.The carbonization section includes a carbonization box 10, which is a container for carbonizing preheated desulfurization and denitrification activated carbon material that needs carbonization. The carbonization box 10 is equipped with a stirring mechanism 11, which stirs the preheated desulfurization and denitrification activated carbon material undergoing carbonization within the box 10, ensuring more uniform heating and complete contact with the discharged activation gases (carbon dioxide and water vapor), thereby improving carbonization efficiency. A stirring motor 12 is connected to the input end of the stirring mechanism 11. The kinetic energy output structure provides kinetic energy support for the stirring function of the stirring mechanism 11. A heating mechanism 2 13 is installed at the bottom of the carbonization box 10 to heat the preheated desulfurization and denitrification activated carbon material inside the carbonization box, allowing the preheated material to continue carbonizing within the box. A temperature sensor 2 14 is installed at the top of the carbonization box 10 for real-time monitoring of the carbonization process. The temperature inside the carbonization chamber 10 is monitored and transmitted back to the PLC controller 26 in real time. The PLC controller 26 compares the transmitted temperature value with the threshold value input to it. When the transmitted temperature value is lower than the input threshold, the heating mechanism 2 13 is controlled to heat the carbonization chamber 10. When the transmitted temperature value is equal to or higher than the input threshold, the heating mechanism 2 13 is controlled to stop heating the carbonization chamber 10. This achieves energy saving while ensuring the normal progress of the carbonization reaction. The output end of the carbonization box 10 is connected to the discharge pipe 2 15. After carbonization, the desulfurized and denitrified activated carbon is discharged into the cooling section. The discharge pipe 2 15 is equipped with valve 2 16, which plays a control role. Under the control of PLC controller 26, the valve controls the opening and closing of the internal channel of the discharge pipe 2 15. During the carbonization process, the valve is kept closed to ensure that the carbonization reaction in the carbonization box 10 is complete. After carbonization, the valve is opened to allow the carbonized desulfurized and denitrified activated carbon to enter the cooling section sequentially from the discharge pipe 2 15. The end of the discharge pipe 2 15 is connected to the cooling section.The cooling section includes a cooling chamber 17, a container for cooling the carbonized desulfurized and denitrified activated carbon. A screw 18 is installed inside the cooling chamber 17 for conveying. Under the action of the screw motor 19, the carbonized desulfurized and denitrified activated carbon, continuously discharged from the discharge pipe 15, is sequentially and orderly conveyed from the end of the discharge pipe 15 to the discharge pipe 24. During the conveying process, the carbonized desulfurized and denitrified activated carbon undergoes cooling treatment, ensuring that its temperature reaches room temperature when discharged from the discharge pipe 24, facilitating collection. The screw motor 19 is connected to the input end of the screw 18, providing kinetic energy output for the screw 18's conveying operation. The cooling chamber 17 is powered by a cooling jacket 20. Refrigerant flows through the channels of the cooling chamber, carrying away heat from the chamber and thus reducing the temperature of the carbonized desulfurized and denitrified activated carbon. The cooling jacket 20 has a refrigerant outlet pipe 22 and a refrigerant inlet pipe 21 arranged sequentially from front to back. The refrigerant outlet pipe 22 is the pipe through which the refrigerant flows out of the cooling jacket 20, and the refrigerant inlet pipe 21 is the pipe through which the refrigerant enters the cooling jacket 20. A temperature sensor 23 is installed on the cooling chamber 17 for real-time monitoring of the internal temperature. The monitored temperature information is transmitted back to the PLC controller 26 in real time, so that the PLC controller 26 can compare the transmitted temperature value with the threshold value input on the PLC controller 26, thereby controlling the flow rate of the refrigerant to ensure the cooling effect on the desulfurized and denitrified activated carbon after carbonization. The output end of the cooling box 17 is connected to the discharge pipe 24, and the desulfurized and denitrified activated carbon after cooling is discharged from the discharge pipe. The top of the discharge pipe 24 is equipped with an exhaust pipe 25, which is the exhaust channel for the generated tail gas. The components include: feed valve 2, stirring motor 5, heating mechanism 1 6, temperature sensor 1 7, valve 1 9, stirring motor 12, heating mechanism 2 13, and temperature sensor 2 14. Valve 2 (16), screw motor 19, and temperature sensor 3 (23) are connected to the same PLC controller 26, which plays a control role. Utilizing its advanced PLC control system, it controls the coordinated operation of the feed valve 2, stirring motor 5, heating mechanism 1 (6), temperature sensor 1 (7), valve 1 (9), stirring motor 12, heating mechanism 2 (13), temperature sensor 2 (14), valve 2 (16), screw motor 19, and temperature sensor 3 (23). Employing three-stage independent intelligent temperature control (preheating, carbonization, and cooling) technology, it achieves segmented carbonization of the desulfurized and denitrified activated carbon material requiring carbonization, ensuring stable temperature control in each stage and guaranteeing consistent product quality.

[0023] As a preferred embodiment, the screw motor 19 is specifically a servo motor, which realizes closed-loop control of speed and torque, overcomes the problem of stepper motor step loss, has strong overload resistance, can withstand loads three times the rated torque, meets the characteristics of screw 18 such as smooth material conveying, and ensures the cooling effect of the cooling section.

[0024] In a preferred embodiment, the top of the carbonization box 10 is provided with an air inlet pipe for introducing activation gases (carbon dioxide and water vapor).

[0025] In a preferred embodiment, the end of the exhaust pipe 25 is connected to a tail gas purification device to purify the generated tail gas before it is discharged, thereby reducing the pollution of the tail gas to the environment.

[0026] As a preferred embodiment, the interior of the cooling jacket 20 is specifically a "spring-shaped" spiral water channel, which allows the refrigerant to flow through every part of the wall of the cooling box 17, prolonging the time the refrigerant spends in the cooling jacket 20, resulting in uniform cooling and high cooling efficiency.

[0027] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope of this application is indicated by the claims.

[0028] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The embodiments of this application described above do not constitute a limitation on the scope of protection of this application.

Claims

1. A desulfurization and denitrification activated carbon carbonization furnace with a temperature control system, comprising a preheating section, a carbonization section, and a cooling section, characterized in that, The preheating section includes a feeding hopper (1), on which a feeding valve (2) is provided. The output end of the feeding hopper (1) is connected to a preheating box (3). A stirring mechanism (4) is provided inside the preheating box (3). A stirring motor (5) is connected to the input end of the stirring mechanism (4). A heating mechanism (6) is provided at the bottom of the preheating box (3). A temperature sensor (7) is provided at the top of the preheating box (3). A discharge pipe (8) is connected to the output end of the preheating box (3). A heating device (6) is provided on the discharge pipe (8). There is a valve (9), and the end of the discharge pipe (8) is connected to the carbonization section; the carbonization section includes a carbonization box (10), and a stirring mechanism (11) is provided inside the carbonization box (10). The input end of the stirring mechanism (11) is connected to a stirring motor (12). A heating mechanism (13) is provided at the bottom of the carbonization box (10), and a temperature sensor (14) is provided at the top of the carbonization box (10). The output end of the carbonization box (10) is connected to a discharge pipe (15), and a device is provided on the discharge pipe (15). Valve 2 (16), the end of the discharge pipe 2 (15) is connected to the cooling section; the cooling section includes a cooling box (17), a screw (18) is installed inside the cooling box (17), the input end of the screw (18) is connected to a screw motor (19), the cooling box (17) is wrapped with a cooling jacket (20), the cooling jacket (20) is provided with a refrigerant outlet pipe (22) and a refrigerant inlet pipe (21) from front to back, the cooling box (17) is provided with a temperature sensor 3 (23), the cooling section is connected to the cooling section. The output end of the temperature chamber (17) is connected to the discharge pipe (24), and the top of the discharge pipe (24) is provided with an exhaust pipe (25); the feed valve (2), the stirring motor (5), the heating mechanism one (6), the temperature sensor one (7), the valve one (9), the stirring motor (12), the heating mechanism two (13), the temperature sensor two (14), the valve two (16), the screw motor (19) and the temperature sensor three (23) are connected to the same PLC controller (26).

2. The desulfurization and denitrification activated carbon carbonization furnace with a temperature control system according to claim 1, characterized in that, The screw motor (19) is specifically a servo motor.

3. The desulfurization and denitrification activated carbon carbonization furnace with a temperature control system according to claim 1, characterized in that, An air inlet pipe is provided on the top of the carbonization box (10).

4. The desulfurization and denitrification activated carbon carbonization furnace with a temperature control system according to claim 1, characterized in that, The exhaust pipe (25) is connected to the exhaust gas purification device at its end.

5. The desulfurization and denitrification activated carbon carbonization furnace with a temperature control system according to claim 1, characterized in that, The cooling jacket (20) has a "spring-shaped" spiral water channel inside.

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