An ultra-micro scale hot air flow coupling regulation device in a roaster

Abstract

This utility model discloses an ultra-microscale hot air flow coupling and control device in a roasting machine furnace, belonging to the field of roasting machine technology. The key technical points include a roasting machine body, a circulation mechanism welded to the front side of the roasting machine body, and a control mechanism installed on the front side of the circulation mechanism. The control mechanism includes a PLC controller, a temperature sensor, a guide pipe, an electromagnetic one-way valve, and a connecting pipe. The PLC controller is installed on the front side of the circulation mechanism, and the temperature sensor is installed on the left side of the circulation mechanism. The temperature sensor in the control mechanism monitors the temperature of the circulating hot air in real time. After the data is transmitted to the PLC controller, the flow direction and flow rate of the hot air in the guide pipe can be controlled by adjusting the on / off state of the electromagnetic one-way valve, such as switching the hot air circulation path or the discharge volume, to achieve dynamic adaptation of the furnace temperature and avoid overheating or insufficient temperature affecting the roasting quality. The PLC controller integrates automated control logic, reducing manual intervention and improving control efficiency.

Description

Technical Field

[0001] This utility model relates to the field of roasting machine technology, and in particular to an ultra-microscale hot air flow coupling control device inside a roasting machine furnace. Background Technology

[0002] The belt roaster is a core process equipment used in the metallurgical industry for roasting iron ore pellets. It is one of the three mainstream processes in pellet production. Its design is derived from the belt sintering machine, but it is made of high-temperature resistant alloy steel and equipped with a segmented air box, a composite airflow system and an upper furnace hood structure. It can integrate the entire process of drying, preheating, roasting and cooling.

[0003] To address the aforementioned issues, existing patents have provided solutions. However, existing roasting machines lack a structure for regulating temperature recovery and utilization. This makes it difficult to flexibly adjust the distribution and utilization of recovered heat according to the actual needs of different working stages of the roasting machine during the heat recovery process, resulting in energy waste.

[0004] To address this, a microscale hot air flow coupling control device for roasting furnaces is proposed. Utility Model Content

[0005] The purpose of this invention is to provide an ultra-microscale hot air flow coupling control device inside a roasting machine furnace, which can solve the problem that existing roasting machines lack a structure for temperature recovery and utilization, making it difficult to flexibly adjust the distribution and utilization of recovered heat according to the actual needs of different working stages of the roasting machine, thus causing energy waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a microscale hot air flow coupling control device inside a roasting machine furnace, comprising a roasting machine body, a circulation mechanism welded to the front side of the roasting machine body, and a control mechanism installed on the front side of the circulation mechanism. The control mechanism includes a PLC controller, a temperature sensor, a guide pipe, an electromagnetic one-way valve, and a connecting pipe. The PLC controller is installed on the front side of the circulation mechanism, the temperature sensor is installed on the left side of the circulation mechanism, the detection end of the right side of the temperature sensor penetrates and extends to the inside of the circulation mechanism, the guide pipe is fixedly connected to the right side of the circulation mechanism, the electromagnetic one-way valve is installed on the right side of the guide pipe and the front side of the guide pipe respectively, and the connecting pipe is fixedly connected to the front side of the front electromagnetic one-way valve.

[0007] Preferably, the circulation mechanism includes a support frame, mounting column, exhaust pipe, wind deflector, exhaust pump, exhaust pipe, diversion pipe and exhaust plate, and the support frame is welded to the front side of the roasting machine body.

[0008] Preferably, the PLC controller is installed on the front side of the support frame, the mounting column is welded to the top of the support frame, the exhaust pipe is welded to the inside of the mounting column, the temperature sensor is installed on the left side of the exhaust pipe, the detection end of the temperature sensor on the right side passes through and extends to the inside of the exhaust pipe, and the wind shield is fixedly connected to the rear side of the exhaust pipe.

[0009] Preferably, the exhaust pump is installed on the front side of the support frame, the front side of the exhaust pipe is fixedly connected to the top of the exhaust pump, the exhaust pipe is fixedly connected to the bottom of the exhaust pump, the right side of the exhaust pipe is fixedly connected to the left side of the guide pipe, the diversion pipe is fixedly connected to the right side of the right electromagnetic single-way valve, the exhaust plate is welded to the front side of the roasting machine body, and the rear side of the diversion pipe passes through and is fixedly connected to the inner side of the exhaust plate.

[0010] Preferably, a sealing ring is fixedly connected to the side of the temperature sensor near the exhaust pipe, and the surface of the sealing ring is coated with heat-insulating paint.

[0011] Preferably, a reinforcing ring is fixedly connected to the side of the diversion pipe near the exhaust plate, and the surface of the reinforcing ring is coated with heat-insulating paint.

[0012] Preferably, a baffle plate is welded to the top of the exhaust plate, and the baffle plate is arc-shaped.

[0013] Preferably, the PLC controller is fitted with a protective shell, and the bottom of the protective shell has heat dissipation holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The circulation mechanism of this application can efficiently export the high-temperature hot air inside the roasting machine body through the coordinated action of the exhaust pipe, exhaust pump and exhaust pipe. The hot air is then redistributed to the roasting section, the homogenizing section, the preheating section and the drying section through the diversion pipe and exhaust plate, so as to realize the circulation of hot air, reduce the waste caused by direct heat emission and improve the heat utilization rate.

[0016] 2. The temperature sensor in the control mechanism of this application monitors the temperature of the circulating hot air in real time. After the data is transmitted to the PLC controller, the flow direction and flow rate of the hot air in the guide pipe can be controlled by adjusting the on / off state of the electromagnetic single-way valve, such as switching the hot air circulation path or the discharge volume, so as to achieve dynamic adaptation of the furnace temperature and avoid overheating or insufficient temperature from affecting the roasting quality. The PLC controller integrates automated control logic, reduces manual intervention, and improves control efficiency. Attached Figure Description

[0017] Figure 1 This is an overall structural diagram of the ultra-microscale hot air flow coupling control device inside the roasting machine furnace of this utility model.

[0018] Figure 2This is a schematic diagram of the control mechanism of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the windshield of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the exhaust pump of this utility model;

[0021] Figure 5 This utility model Figure 4 Enlarged diagram of point A in the middle.

[0022] In the diagram, 1. Roasting machine body; 2. Circulation mechanism; 21. Support frame; 22. Mounting column; 23. Exhaust pipe; 24. Wind shield; 25. Exhaust pump; 26. Exhaust pipe; 27. Diverter pipe; 28. Exhaust plate; 3. Control mechanism; 31. PLC controller; 32. Temperature sensor; 33. Guide pipe; 34. Solenoid one-way valve; 35. Connecting pipe; 4. Sealing ring; 5. Reinforcing ring; 6. Wind shield; 7. Protective shell; 8. Heat dissipation hole. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-5 The present invention provides the following technical solution:

[0025] A microscale hot air flow coupling control device for a roasting machine furnace includes a roasting machine body 1. A circulation mechanism 2 is welded to the front side of the roasting machine body 1. A control mechanism 3 is installed on the front side of the circulation mechanism 2. The control mechanism 3 includes a PLC controller 31, a temperature sensor 32, a guide pipe 33, an electromagnetic one-way valve 34, and a connecting pipe 35. The PLC controller 31 is installed on the front side of the circulation mechanism 2. The temperature sensor 32 is installed on the left side of the circulation mechanism 2. The detection end of the temperature sensor 32 on the right side extends through and into the inner side of the circulation mechanism 2. The guide pipe 33 is fixedly connected to the right side of the circulation mechanism 2. The electromagnetic one-way valve 34 is installed on the right side and the front side of the guide pipe 33, respectively. The connecting pipe 35 is fixedly connected to the front side of the electromagnetic one-way valve 34.

[0026] In this embodiment: the roasting machine body 1 provides the installation foundation for the circulation mechanism 2 and the control mechanism 3, while forming a closed roasting space to ensure stable flow of hot air in the furnace and the integrity of the material roasting environment. The PLC controller 31 integrates automated control logic, receives signals from the temperature sensor 32 and outputs control commands to regulate the electromagnetic one-way valve 34, reducing human error. The temperature sensor 32 monitors the temperature parameters of the circulating hot air in real time and provides temperature feedback signals to the PLC controller 31, ensuring that the controller can adjust the control strategy according to the actual working conditions. The guide pipe 33 connects the exhaust pipe 26 and the electromagnetic single-way valve 34, guiding the hot air to flow along a preset path. The electromagnetic single-way valve 34 is controlled by the PLC controller 31 to switch the direction of the hot air flow in the guide pipe 33, such as returning through the guide diversion pipe 27 or discharging through the connecting pipe 35, flexibly adjusting the hot air circulation volume and discharge volume to adapt to the temperature requirements of different roasting stages. The connecting pipe 35 provides a bypass discharge channel for the hot air. When the furnace temperature is too high or the hot air circulation volume is saturated, excess hot air can be discharged through this pipe to avoid local overheating caused by excessive accumulation of circulating hot air.

[0027] Specifically, such as Figure 3 , Figure 4 As shown, the circulation mechanism 2 includes a support frame 21, a mounting column 22, an exhaust pipe 23, a wind deflector 24, an exhaust pump 25, an exhaust pipe 26, a diversion pipe 27, and an exhaust plate 28. The support frame 21 is welded to the front side of the roasting machine body 1.

[0028] Specifically, such as Figure 3 , Figure 4 As shown, the PLC controller 31 is installed on the front side of the support frame 21, the mounting column 22 is welded to the top of the support frame 21, the exhaust pipe 23 is welded to the inside of the mounting column 22, the temperature sensor 32 is installed on the left side of the exhaust pipe 23, the detection end of the temperature sensor 32 on the right side passes through and extends to the inside of the exhaust pipe 23, and the wind shield 24 is fixedly connected to the rear side of the exhaust pipe 23.

[0029] Specifically, such as Figure 3 , Figure 4 As shown, the exhaust pump 25 is installed on the front side of the support frame 21, the front side of the exhaust pipe 23 is fixedly connected to the top of the exhaust pump 25, the exhaust pipe 26 is fixedly connected to the bottom of the exhaust pump 25, the right side of the exhaust pipe 26 is fixedly connected to the left side of the guide pipe 33, the diversion pipe 27 is fixedly connected to the right side of the right electromagnetic single-way valve 34, the exhaust plate 28 is welded to the front side of the roasting machine body 1, and the rear side of the diversion pipe 27 passes through and is fixedly connected to the inner side of the exhaust plate 28.

[0030] In this embodiment: a support frame 21 provides rigid support for the exhaust pump 25, PLC controller 31, and mounting column 22. The mounting column 22 is used to fix the exhaust pipe 23, ensuring that the exhaust pipe 23 remains stable in the high-temperature environment. The exhaust pipe 23 can collect the high-temperature hot air inside the roasting machine body 1. Together with the baffle 24, it reduces airflow disturbance and ensures that the hot air enters the exhaust pump 25 stably. The baffle 24 can block the interference of the chaotic airflow inside the furnace on the exhaust process and guide the hot air to concentrate into the exhaust pipe 25. 3. Improve ventilation efficiency: The exhaust pump 25 draws in hot air from the furnace through the exhaust pipe 23 and pressurizes it to the exhaust pipe 26. The exhaust pipe 26 transmits the pressurized hot air from the exhaust pump 25 to the guide pipe 33. The diversion pipe 27 guides the hot air to the exhaust plate 28 and blows it evenly to the roasting section, the homogenizing section, the preheating section and the drying section. The exhaust plate 28 receives the hot air transmitted by the diversion pipe 27 and evenly diffuses the hot air to the roasting section, the homogenizing section, the preheating section and the drying section, increasing the contact area between the hot air and the material.

[0031] Specifically, such as Figure 5 As shown, a sealing ring 4 is fixedly connected to the side of the temperature sensor 32 near the exhaust pipe 23, and the surface of the sealing ring 4 is coated with heat-insulating paint.

[0032] Specifically, such as Figure 3 As shown, a reinforcing ring 5 is fixedly connected to the side of the diversion pipe 27 near the exhaust plate 28, and the surface of the reinforcing ring 5 is coated with heat insulation coating.

[0033] In this embodiment: by setting a sealing ring 4, the gap between the two can be effectively filled, enhancing the connection sealing and preventing the high-temperature hot air in the exhaust pipe 23 from leaking out of the gap, thus reducing heat loss. By setting a heat-insulating coating, the high temperature of the exhaust pipe 23 can be blocked from being conducted to the temperature sensor 32, reducing the aging damage of the sensor element caused by high temperature and extending the service life of the sensor. By setting a reinforcing ring 5, the connection strength between the two can be enhanced, resisting the impact force caused by the hot air pressure in the diversion pipe 27 and the vibration of the equipment operation, preventing the connection from loosening or deforming. By setting a heat-insulating coating, the high-temperature hot air can be blocked from dissipating heat to the outside through the connection between the diversion pipe 27 and the exhaust plate 28, thus reducing heat loss.

[0034] Specifically, such as Figure 3 As shown, a baffle plate 6 is welded to the top of the exhaust plate 28, and the baffle plate 6 is designed to be arc-shaped.

[0035] Specifically, such as Figure 5 As shown, the PLC controller 31 is covered with a protective shell 7, and the bottom of the protective shell 7 has heat dissipation holes 8.

[0036] In this embodiment: by setting the baffle plate 6, the hot air discharged from the exhaust plate 28 can be guided, preventing the hot air from escaping upward and forcing the hot air to concentrate and diffuse towards the material area below, increasing the contact time and area between the hot air and the material, and improving the heat utilization rate. By setting the baffle plate 6 to be arc-shaped, the arc structure can reduce airflow resistance and prevent the hot air from forming vortices at the top of the exhaust plate 28, making the hot air distribution more uniform. By setting the protective shell 7, external dust, water vapor and high temperature radiation can be prevented from directly contacting the PLC controller 31, providing it with a physical barrier and preventing the controller from being damaged by environmental impurities or high temperature impact. By setting the heat dissipation holes 8, the heat generated by the controller during operation can be discharged in time.

[0037] Working Principle: First, after the roasting machine body 1 is started, a closed roasting space is formed. The operator controls the circulation mechanism 2 and the control mechanism 3 to enter the working state through the PLC controller 31. At this time, the exhaust pump 25 starts to run, drawing high-temperature hot air from the top of the roasting machine body 1 through the exhaust pipe 23. Then, the temperature sensor 32 monitors the temperature parameters of the hot air in the exhaust pipe 23 in real time and transmits the temperature data to the PLC controller 31. Then, the exhaust pump 25 pressurizes the drawn-in hot air and transmits it to the guide pipe 33 through the exhaust pipe 26. The guide pipe 33 guides the hot air to flow along a preset path. According to the real-time data fed back by the temperature sensor 32, the PLC controller 31 outputs control commands to the solenoid single-way valve 34 to adjust the direction of hot air flow. When hot air circulation is required... When the furnace temperature is too high, the right-side electromagnetic single-way valve 34 opens and the front electromagnetic single-way valve 34 closes. Hot air is transmitted to the exhaust plate 28 through the diversion pipe 27. When the furnace temperature is too high, the front electromagnetic single-way valve 34 opens and excess hot air is discharged through the connecting pipe 35 to avoid local overheating. Then, the diversion pipe 27 guides the hot air to the exhaust plate 28. The exhaust plate 28 evenly diffuses the hot air to the material areas of the roasting section, the homogenizing section, the preheating section and the drying section, increasing the contact area between the hot air and the material. Finally, the arc-shaped baffle 6 at the top of the exhaust plate 28 guides the discharged hot air, preventing the hot air from escaping upward and forcing the hot air to concentrate and diffuse downward to the material area, reducing airflow resistance and eddy formation, making the hot air distribution more uniform, and completing the entire micro-scale coupling control process of hot air flow.

[0038] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A microscale hot air flow coupling control device inside a roasting machine furnace, comprising a roasting machine body (1), characterized in that: The roasting machine body (1) is welded to the front side with a circulation mechanism (2). The circulation mechanism (2) is equipped with a control mechanism (3). The control mechanism (3) includes a PLC controller (31), a temperature sensor (32), a guide pipe (33), an electromagnetic one-way valve (34), and a connecting pipe (35). The PLC controller (31) is installed on the front side of the circulation mechanism (2). The temperature sensor (32) is installed on the left side of the circulation mechanism (2). The detection end of the right side of the temperature sensor (32) passes through and extends to the inside of the circulation mechanism (2). The guide pipe (33) is fixedly connected to the right side of the circulation mechanism (2). The electromagnetic one-way valve (34) is installed on the right side of the guide pipe (33) and the front side of the guide pipe (33) respectively. The connecting pipe (35) is fixedly connected to the front side of the front electromagnetic one-way valve (34).

2. The device according to claim 1, wherein the device is characterized in that: The circulation mechanism (2) includes a support frame (21), a mounting column (22), an exhaust pipe (23), a wind shield (24), an exhaust pump (25), an exhaust pipe (26), a diversion pipe (27), and an exhaust plate (28). The support frame (21) is welded to the front side of the roasting machine body (1).

3. The device according to claim 2, wherein the device is characterized in that: The PLC controller (31) is installed on the front side of the support frame (21), the mounting column (22) is welded to the top of the support frame (21), the exhaust pipe (23) is welded to the inside of the mounting column (22), the temperature sensor (32) is installed on the left side of the exhaust pipe (23), the detection end of the right side of the temperature sensor (32) passes through and extends to the inside of the exhaust pipe (23), and the wind shield (24) is fixedly connected to the rear side of the exhaust pipe (23).

4. The device according to claim 2, wherein the device is characterized in that: The exhaust pump (25) is installed on the front side of the support frame (21). The front side of the exhaust pipe (23) is fixedly connected to the top of the exhaust pump (25). The exhaust pipe (26) is fixedly connected to the bottom of the exhaust pump (25). The right side of the exhaust pipe (26) is fixedly connected to the left side of the guide pipe (33). The diversion pipe (27) is fixedly connected to the right side of the right electromagnetic single-way valve (34). The exhaust plate (28) is welded to the front side of the roasting machine body (1). The rear side of the diversion pipe (27) passes through and is fixedly connected to the inner side of the exhaust plate (28).

5. The device according to claim 1, wherein the device is characterized in that: The temperature sensor (32) is fixedly connected to a sealing ring (4) on the side near the exhaust pipe (23), and the surface of the sealing ring (4) is coated with heat-insulating paint.

6. The device according to claim 2, wherein the device is characterized in that: A reinforcing ring (5) is fixedly connected to the side of the diversion pipe (27) near the exhaust plate (28), and the surface of the reinforcing ring (5) is coated with heat-insulating paint.

7. The device according to claim 2, wherein the device is characterized in that: The top of the exhaust plate (28) is welded with a baffle plate (6), which is arc-shaped.

8. The device according to claim 1, wherein the device is characterized in that: The PLC controller (31) is covered with a protective shell (7), and the bottom of the protective shell (7) has heat dissipation holes (8).

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