Graphitization furnace state monitoring system

Abstract

The invention relates to the field of graphitization furnaces, in particular to a graphitization furnace state monitoring system which comprises a furnace body, and an exhaust pipe is provided with a pressure detection assembly used for detecting the pressure in the furnace body and a temperature detection assembly used for detecting the temperature in the furnace body. The gas inlet pipe and the gas outlet pipe are provided with adjusting mechanisms used for adjusting the flow of inert gas and the flow of high-temperature waste gas. The device has the beneficial effects that in actual use, the pressure and temperature in the furnace body are detected through the pressure detection assembly and the temperature detection assembly, and when the pressure is higher than a threshold value or the temperature is higher than the threshold value, the adjusting mechanism adjusts the inert gas flow to be reduced and the high-temperature waste gas flow to be increased; therefore, the purposes of pressure reduction and temperature reduction are achieved. When the pressure is lower than the threshold value or the temperature is lower than the threshold value, the adjusting mechanism adjusts the inert gas flow to be increased and the high-temperature waste gas flow to be reduced, and therefore the purposes of pressure rising and temperature rising are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of graphitization furnaces, and in particular to a graphitization furnace state monitoring system. Background Art

[0002] As an important equipment in the field of material production, precise control of the internal state (especially pressure and temperature) of the graphitization furnace is crucial to ensure the stability of the production process and product quality.

[0003] During the operation of the graphitization furnace, changes in furnace pressure and temperature have a direct impact on production efficiency and product quality. For example, when the pressure in the furnace increases, if the pressure cannot be released in time, it may cause an imbalance in the furnace atmosphere, affecting the uniformity of the graphitization process and product quality; and when the pressure decreases, if the pressure cannot be increased in time, it may cause heat loss in the furnace and reduce heating efficiency.

[0004] For the pressure regulation in the graphitization furnace, the existing technology usually adopts increasing the inert gas flow rate or reducing the exhaust gas flow rate to achieve it. However, these two operations are usually performed separately, that is, it is difficult to increase the inert gas flow rate while reducing the exhaust gas flow rate. This single operation mode limits the flexibility and response speed of pressure regulation;

[0005] In addition, the graphitization furnace usually regulates pressure and temperature in a single manner, that is, there is no correlation between pressure regulation and temperature regulation. This single regulation method makes it difficult to achieve synchronous control of pressure and temperature in actual operation.

[0006] Therefore, a graphitization furnace state monitoring system is needed to overcome the occurrence of the above problems. Summary of the invention

[0007] In order to solve the above problems, an embodiment of the present invention provides a graphitization furnace state monitoring system, which achieves the purpose of solving the problems raised in the background technology.

[0008] In order to achieve the above-mentioned purpose, the embodiment of the present invention specifically adopts the following technical scheme: a graphitization furnace state monitoring system, comprising a furnace body, the furnace body is provided with an air inlet pipe for introducing inert gas, the furnace body is provided with an exhaust pipe for discharging high-temperature exhaust gas, the exhaust pipe is provided with a pressure detection component for detecting the internal pressure of the furnace body and a temperature detection component for detecting the internal temperature of the furnace body;

[0009] The air inlet pipe and the exhaust pipe are provided with regulating mechanisms for adjusting the inert gas flow rate and the high-temperature exhaust gas flow rate; the regulating mechanisms reduce the internal pressure and temperature of the furnace body by reducing the inert gas flow rate and increasing the high-temperature exhaust gas flow rate, or increase the internal pressure and temperature of the furnace body by increasing the inert gas flow rate and reducing the high-temperature exhaust gas flow rate.

[0010] As a further improvement of the above technical solution:

[0011] The regulating mechanism comprises:

[0012] The heat exchange component is connected and arranged on the intake pipe and the exhaust pipe, and heats the inert gas inside the intake pipe by the heat of the high-temperature exhaust gas inside the exhaust pipe;

[0013] The regulating component is arranged inside the heat exchange component, and controls the inert gas flow and the high-temperature exhaust gas flow by adjusting the internal opening of the heat exchange component.

[0014] The heat exchange component comprises:

[0015] A connecting pipe, connectedly arranged on the intake pipe and the exhaust pipe; and

[0016] The partition is fixedly connected to the inside of the connecting pipe, and the connecting pipe is divided into an inert gas chamber and a high-temperature exhaust gas chamber by the partition. The inert gas chamber is connected to the intake pipe, and the high-temperature exhaust gas chamber is connected to the exhaust pipe.

[0017] The adjustment component comprises:

[0018] An adjusting plate 1 is rotatably arranged on the partition;

[0019] The second adjusting plate is rotatably disposed on the partition and symmetrically disposed with the first adjusting plate; and

[0020] A driving unit is arranged outside the connecting pipe and is used to drive the first adjusting plate and the second adjusting plate to rotate in opposite directions;

[0021] One end of the adjustment plate 1 and the inner wall of the connecting tube form through cavity 1, one end of the adjustment plate 2 and the inner wall of the connecting tube form through cavity 2, and one end of the adjustment plate 1 and one end of the adjustment plate 2 form through cavity 3; the sum of the areas of through cavity 1 and through cavity 2 is greater than the area of ​​through cavity 3.

[0022] One end of the adjustment plate 1 is fixedly connected to the fixing plate 1, and one end of the adjustment plate 2 is fixedly connected to the fixing plate 2; the fixing plate 1, the fixing plate 2, the adjustment plate 1 and the adjustment plate 2 together form a through cavity 3.

[0023] The adjustment component also includes:

[0024] Baffle 1, fixedly connected inside the inert gas chamber;

[0025] The second baffle is slidably disposed inside the inert gas chamber and is attached to one side of the first baffle;

[0026] A gear rod, fixedly connected to one side of baffle plate 2;

[0027] An impeller is rotatably disposed inside the high-temperature exhaust gas chamber;

[0028] Gear five, fixedly connected to the rotating shaft of the impeller and meshing with the gear rod;

[0029] The high-temperature exhaust gas discharged from the through cavity one or through cavity three drives the impeller to rotate, thereby driving the baffle plate two to slide.

[0030] A partial area on one side of the impeller is located at the first through cavity, and a partial area on the other side of the impeller is located at the third through cavity.

[0031] The fixing plate 1 is attached to one side of the inner wall of the connecting pipe, the fixing plate 2 is attached to the other side of the inner wall of the connecting pipe, a cavity is provided between the fixing plate 1 and the other side of the inner wall of the connecting pipe, and the blade height of the impeller is the same as the height of the cavity.

[0032] The first baffle plate is provided with a first through groove, and the second baffle plate is provided with a second through groove.

[0033] The baffle plate 2 comprises:

[0034] A connecting rod is slidably disposed inside the inert gas chamber;

[0035] a baffle, hingedly disposed on the baffle; and

[0036] The elastic component is arranged between the connecting rod and the blocking piece.

[0037] The elastic component comprises a first curved rod fixedly connected to one side of the connecting rod and a second curved rod fixedly connected to one side of the baffle; the second curved rod is sleeved inside the first curved rod, and a spring is arranged inside the first curved rod.

[0038] The driving unit includes a motor installed outside the connecting pipe, a gear 1 fixedly connected to the output shaft of the motor, a gear 2 fixedly connected to the rotating shaft of the adjusting plate 1 and located outside the connecting pipe, a gear 3 fixedly connected to the rotating shaft of the adjusting plate 2 and located outside the connecting pipe, and a gear 4 rotatably arranged outside the connecting pipe;

[0039] Among them, gear one is meshed with gear two, gear one is meshed with gear four, and gear four is meshed with gear three.

[0040] The beneficial effects of the embodiments of the present invention are:

[0041] In actual use, the pressure and temperature inside the furnace body are detected by the pressure detection component and the temperature detection component. When the pressure is higher than the threshold or the temperature is higher than the threshold, the regulating mechanism adjusts the inert gas flow rate to decrease and the high-temperature exhaust gas flow rate to increase, thereby achieving the purpose of reducing the pressure and reducing the temperature; when the pressure is lower than the threshold or the temperature is lower than the threshold, the regulating mechanism adjusts the inert gas flow rate to increase and the high-temperature exhaust gas flow rate to decrease, thereby achieving the purpose of increasing the pressure and increasing the temperature;

[0042] In actual use, after the high-temperature exhaust gas and the inert gas enter the interior of the heat exchange component, the heat of the high-temperature exhaust gas is transferred to the inert gas through the heat exchange component, thereby heating the inert gas and realizing the secondary utilization of the high-temperature exhaust gas;

[0043] Part of the high-temperature exhaust gas that enters the high-temperature exhaust gas cavity through the through cavity one or the through cavity three will push the impeller to rotate, so as to form a turbulent flow inside the high-temperature exhaust gas cavity, thereby facilitating the heat of the high-temperature exhaust gas to be transferred to the inert gas through the partition plate;

[0044] In actual use, the impeller is driven to rotate by the flow of high-temperature exhaust gas, thereby achieving the purpose of adjusting the opening inside the inert gas chamber, that is, no external driving source is required when adjusting the opening inside the inert gas chamber; and the opening inside the inert gas chamber is adjusted in real time with the opening adjustment inside the high-temperature exhaust gas chamber, thereby improving the adjustment response speed of the opening inside the inert gas chamber;

[0045] By setting the cavity, the impeller can be closer to the through cavity one and the through cavity three, so that the high-temperature exhaust gas blown out from the through cavity one or the through cavity three can better drive the impeller to rotate;

[0046] When the second baffle plate covers the through groove one with a large area, the pressure inside the air inlet pipe is relatively high. By setting an elastic component, the inert gas inside the air inlet pipe can overcome the elastic force of the elastic component to push the baffle plate to rotate, thereby ensuring that the inert gas can continuously enter the interior of the furnace body; when the second baffle plate covers the through groove one with a small area, the pressure inside the air inlet pipe is relatively low. At this time, it is difficult for the inert gas inside the air inlet pipe to overcome the elastic force of the elastic component to push the baffle plate to rotate; that is, by providing a rotatable baffle plate with an elastic component, pressure relief can be achieved when the pressure in the air inlet pipe is too high, and the purpose of the baffle plate normally controlling the opening inside the inert gas chamber is not affected. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a structural schematic diagram of the present invention;

[0048] Figure 2 It is a structural schematic diagram of the adjusting mechanism of the present invention;

[0049] Figure 3It is a cross-sectional schematic diagram of the connecting pipe of the present invention from a first viewing angle;

[0050] Figure 4 is a cross-sectional schematic diagram of the connecting pipe of the present invention from a second viewing angle;

[0051] Figure 5 It is a cross-sectional schematic diagram of the connecting pipe of the present invention from a third viewing angle;

[0052] Figure 6 This is a schematic diagram of the structure of the adjustment plate 1 and the adjustment plate 2 of the present invention when they are in state 1;

[0053] Figure 7 It is a structural schematic diagram of the present invention when the adjustment plate 1 and the adjustment plate 2 are in state 2;

[0054] Figure 8 It is a schematic diagram of the structure of the cavity of the present invention;

[0055] Fig. 9 This is a schematic structural diagram of a baffle of the present invention from a first viewing angle;

[0056] Fig.10 This is a schematic structural diagram of a baffle of the present invention from a second viewing angle;

[0057] Fig.11 It is a schematic cross-sectional view of the elastic component of the present invention.

[0058] In the figure: 1. furnace body; 2. air inlet pipe; 3. exhaust pipe; 4. regulating mechanism; 5. heat exchange component; 6. regulating component;

[0059] 51. connecting pipe; 52. partition;

[0060] 61. Adjustment plate 1; 62. Adjustment plate 2; 63. Drive unit; 64. Through cavity 1; 65. Through cavity 2; 66. Through cavity 3; 67. Fixed plate 1; 68. Fixed plate 2; 69. Baffle 1; 610. Baffle 2; 611. Gear rod; 612. Impeller; 613. Gear 5; 614. Cavity; 615. Through slot 1; 616. Through slot 2;

[0061] 631, motor; 632, gear 1; 633, gear 2; 634, gear 3; 635, gear 4;

[0062] 6101, connecting rod; 6102, blocking piece; 6103, elastic component; 6104, curved rod one; 6105, curved rod two; 6106, spring. DETAILED DESCRIPTION

[0063] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0064] See also Figures 1 to 11 The embodiment of the present invention discloses a graphitization furnace state monitoring system, including a furnace body 1, an air inlet pipe 2 for introducing an inert gas is provided on the furnace body 1, an exhaust pipe 3 for discharging high-temperature exhaust gas is provided on the furnace body 1, and a pressure detection component (not shown in the figure) for detecting the internal pressure of the furnace body 1 and a temperature detection component (not shown in the figure) for detecting the internal temperature of the furnace body 1 are provided on the exhaust pipe 3; when the graphitization furnace is in operation, its internal temperature is as high as more than 2000 degrees Celsius, and it is difficult to directly detect the pressure inside the furnace body 1, but the temperature inside the exhaust pipe 3 is relatively low, and because the exhaust pipe 3 and the furnace body 1 are connected, the pressure inside the exhaust pipe 3 is the same or tends to be the same as the pressure inside the furnace body 1, and the pressure inside the furnace body 1 can be judged according to the pressure inside the exhaust pipe 3;

[0065] The air inlet pipe 2 and the exhaust pipe 3 are provided with a regulating mechanism 4 for regulating the inert gas flow rate and the high-temperature exhaust gas flow rate; the regulating mechanism 4 reduces the pressure and temperature inside the furnace body 1 by reducing the inert gas flow rate and increasing the high-temperature exhaust gas flow rate;

[0066] In actual use, the pressure and temperature inside the furnace body 1 are detected by a pressure detection component and a temperature detection component. When the pressure is higher than a threshold value or the temperature is higher than a threshold value, the regulating mechanism 4 adjusts the inert gas flow rate to decrease and the high-temperature exhaust gas flow rate to increase, thereby achieving the purpose of reducing pressure and reducing temperature; when the pressure is lower than a threshold value or the temperature is lower than a threshold value, the regulating mechanism 4 adjusts the inert gas flow rate to increase and the high-temperature exhaust gas flow rate to decrease, thereby achieving the purpose of increasing pressure and increasing temperature.

[0067] As a further illustration of this application:

[0068] The regulating mechanism 4 includes: a heat exchange component 5, which is connected to the intake pipe 2 and the exhaust pipe 3, and heats the inert gas inside the intake pipe 2 by the heat of the high-temperature exhaust gas inside the exhaust pipe 3; and a regulating component 6, which is arranged inside the heat exchange component 5, and controls the inert gas flow rate and the high-temperature exhaust gas flow rate by adjusting the internal opening of the heat exchange component 5;

[0069] In actual use, after the high-temperature exhaust gas and the inert gas enter the interior of the heat exchange component 5, the heat of the high-temperature exhaust gas is transferred to the inert gas through the heat exchange component 5, thereby heating the inert gas and realizing the secondary utilization of the high-temperature exhaust gas.

[0070] As a further illustration of this application:

[0071] The heat exchange component 5 comprises:

[0072] A connecting pipe 51 is connected to the intake pipe 2 and the exhaust pipe 3; and a partition plate 52 is fixedly connected to the inside of the connecting pipe 51, and the connecting pipe 51 is divided into an inert gas chamber and a high-temperature exhaust gas chamber by the partition plate 52, the inert gas chamber is connected to the intake pipe 2, and the high-temperature exhaust gas chamber is connected to the exhaust pipe 3;

[0073] In actual use, the inert gas enters the inert gas chamber, the high-temperature exhaust gas enters the high-temperature exhaust gas chamber, and the heat of the high-temperature exhaust gas is conducted to the interior of the inert gas through the partition 52, thereby achieving the purpose of heating the inert gas.

[0074] As a further illustration of this application:

[0075] The adjustment assembly 6 includes: an adjustment plate 1 61, which is rotatably disposed on the partition 52; an adjustment plate 2 62, which is rotatably disposed on the partition 52 and symmetrically disposed with the adjustment plate 1 61; and a driving unit 63, which is disposed outside the connecting pipe 51 and is used to drive the adjustment plate 1 61 and the adjustment plate 2 62 to rotate in opposite directions;

[0076] One end of the adjustment plate 1 61 and the inner wall of the connecting tube 51 form a through cavity 1 64, one end of the adjustment plate 2 62 and the inner wall of the connecting tube 51 form a through cavity 2 65, and one end of the adjustment plate 1 61 and one end of the adjustment plate 2 62 form a through cavity 3 66; the sum of the areas of the through cavity 1 64 and the through cavity 2 65 is greater than the area of ​​the through cavity 3 66;

[0077] In actual use, the driving unit 63 drives the adjustment plate 1 61 and the adjustment plate 2 62 to rotate, so that one end of the adjustment plate 1 61 and one end of the adjustment plate 2 62 abut against each other (such as Figure 7 As shown in FIG. 1 ), the other end of the regulating plate 1 61 and the inner wall of the connecting pipe 51 form a through cavity 1 64, and the other end of the regulating plate 2 62 and the inner wall of the connecting pipe 51 form a through cavity 2 65. At this time, the high-temperature exhaust gas enters the high-temperature exhaust gas cavity through the through cavity 1 64 and the through cavity 2 65. The driving unit 63 drives the regulating plate 1 61 and the regulating plate 2 62 to rotate in opposite directions, so that one end of the regulating plate 1 61 abuts against the inner wall of the connecting pipe 51, and one end of the regulating plate 2 62 abuts against the inner wall of the connecting pipe 51 (as shown in FIG. 1 ). Figure 6 As shown), the other end of the regulating plate 1 61 and the other end of the regulating plate 2 62 and the inner wall of the connecting pipe 51 are combined to form a through cavity 3 66, and the high-temperature exhaust gas enters the high-temperature exhaust gas cavity through the through cavity 3 66;

[0078] Since the sum of the areas of cavity one 64 and cavity two 65 is greater than the area of ​​cavity three 66, when the high-temperature exhaust gas enters the high-temperature exhaust gas cavity through cavity one 64 and cavity two 65, the flow rate of the high-temperature exhaust gas is relatively large; when the high-temperature exhaust gas enters the high-temperature exhaust gas cavity through cavity three 66, the flow rate of the high-temperature exhaust gas is relatively small; therefore, the internal opening of the connecting tube 51 can be changed by switching between opening cavity one 64 and cavity two 65 and opening cavity three 66, so as to achieve the purpose of adjusting the flow rate of the high-temperature exhaust gas.

[0079] As a further illustration of this application:

[0080] One end of the adjustment plate 1 61 is fixedly connected to a fixing plate 1 67, and one end of the adjustment plate 2 62 is fixedly connected to a fixing plate 2 68; the fixing plate 1 67, the fixing plate 2 68, the adjustment plate 1 61, and the adjustment plate 2 62 together form a through cavity 3 66;

[0081] By setting fixed plate 1 67 and fixed plate 2 68, the area of ​​through cavity 3 66 is made smaller than the sum of the areas of through cavity 1 64 and through cavity 2 65; at the same time, the volumes of fixed plate 1 67 and fixed plate 2 68 can be adjusted, that is, the cross-sectional areas of fixed plate 1 67 and fixed plate 2 68 are changed, so as to achieve the purpose of adjusting the area of ​​through cavity 3 66.

[0082] As a further illustration of this application:

[0083] The adjustment component 6 also includes:

[0084] A baffle 69, fixedly connected inside the inert gas chamber;

[0085] The second baffle plate 610 is slidably disposed inside the inert gas chamber and is attached to one side of the first baffle plate 69;

[0086] The gear rod 611 is fixedly connected to one side of the second baffle plate 610;

[0087] An impeller 612 is rotatably disposed inside the high-temperature exhaust gas chamber;

[0088] Gear five 613, fixedly connected to the rotating shaft of the impeller 612 and meshing with the gear rod 611;

[0089] The high-temperature exhaust gas discharged from the through-chamber 1 64 or the through-chamber 3 66 drives the impeller 612 to rotate, thereby driving the baffle 2 610 to slide;

[0090] In actual use, when the high temperature exhaust gas enters the high temperature exhaust gas chamber through the through cavity 1 64 and the through cavity 2 65 (such as Figure 7As shown in FIG. 1 , the high-temperature exhaust gas blown out from the through cavity 1 64 will blow the impeller 612 to rotate, thereby driving the gear 5 613 to rotate, and the baffle 2 610 can be driven to move through the gear rod 611, so as to change the overlap range between the baffle 1 69 and the baffle 2 610;

[0091] When the high temperature exhaust gas enters the high temperature exhaust gas chamber through the through cavity 3 66, the high temperature exhaust gas blown out from the through cavity 3 66 will blow the impeller 612 to rotate in the opposite direction (such as Figure 6 As shown), the gear 5 613 is driven to rotate in the opposite direction, and the baffle 2 610 is driven to move in the opposite direction through the gear rod 611, so as to change the overlap range between the baffle 1 69 and the baffle 2 610;

[0092] At the same time, part of the high-temperature exhaust gas that enters the high-temperature exhaust gas chamber through the through cavity 1 64 or the through cavity 3 66 pushes on the impeller 612 to rotate, so as to form a turbulent flow inside the high-temperature exhaust gas chamber, thereby facilitating the heat of the high-temperature exhaust gas to be transferred to the inert gas through the partition 52;

[0093] By changing the overlap range between baffle 1 69 and baffle 2 610, the opening inside the inert gas chamber is adjusted, so as to achieve the purpose of adjusting the inert gas flow rate;

[0094] When the internal pressure of the furnace body 1 is high, the high-temperature exhaust gas enters the high-temperature exhaust gas chamber through the through cavity 1 64 and the through cavity 2 65. At this time, the inside of the high-temperature exhaust gas chamber is relatively open, that is, the flow rate of the high-temperature exhaust gas is increased. At the same time, the high-temperature exhaust gas blown out of the through cavity 1 64 drives the impeller 612 to rotate to drive the baffle 2 610 to move, so that the opening inside the inert gas chamber is reduced, that is, the flow rate of the inert gas is reduced; that is, by increasing the flow rate of the high-temperature exhaust gas and reducing the flow rate of the inert gas at the same time, the pressure inside the furnace body 1 can be quickly reduced;

[0095] When the internal pressure of the furnace body 1 is low, the high-temperature exhaust gas enters the high-temperature exhaust gas chamber through the through cavity three 66. At this time, the inside of the high-temperature exhaust gas chamber is relatively small, that is, the flow rate of the high-temperature exhaust gas is reduced. At the same time, the high-temperature exhaust gas blown out of the through cavity three 66 drives the impeller 612 to rotate to drive the baffle 2 610 to move, so that the opening inside the inert gas chamber increases, that is, the flow rate of the inert gas is increased; that is, by reducing the flow rate of the high-temperature exhaust gas and increasing the flow rate of the inert gas at the same time, the pressure inside the furnace body 1 can be quickly increased, which is convenient for practical use;

[0096] In actual use, the flow of high-temperature exhaust gas is used to drive the impeller 612 to rotate, thereby achieving the purpose of adjusting the opening inside the inert gas chamber, that is, no external driving source is required when adjusting the opening inside the inert gas chamber; and the opening inside the inert gas chamber is adjusted in real time with the adjustment of the opening inside the high-temperature exhaust gas chamber, thereby improving the adjustment response speed of the opening inside the inert gas chamber.

[0097] As a further illustration of this application:

[0098] A partial area on one side of the impeller 612 is located at the cavity one 64, and a partial area on the other side of the impeller 612 is located at the cavity three 66, so that the high-temperature exhaust gas blown out from the cavity one 64 can drive the impeller 612 to rotate, and the high-temperature exhaust gas blown out from the cavity three 66 can drive the impeller 612 to rotate in the opposite direction.

[0099] As a further illustration of this application:

[0100] The fixing plate 1 67 is attached to one side of the inner wall of the connecting pipe 51, and the fixing plate 2 68 is attached to the other side of the inner wall of the connecting pipe 51. A cavity 614 is provided between the fixing plate 1 67 and the other side of the inner wall of the connecting pipe 51. The blade height of the impeller 612 is the same as the height of the cavity 614.

[0101] By providing the cavity 614, the impeller 612 can be closer to the through cavity 1 64 and the through cavity 3 66, so that the high-temperature exhaust gas blown out from the through cavity 1 64 or the through cavity 3 66 can better drive the impeller 612 to rotate.

[0102] As a further illustration of this application:

[0103] A through groove 1 615 is provided on baffle 1 69, and a through groove 2 616 is provided on baffle 2 610; by changing the overlap range between baffle 1 69 and baffle 2 610, that is, changing the overlap range between through groove 1 615 and through groove 2 616, the purpose of changing the opening inside the inert gas chamber can be achieved.

[0104] As a further illustration of this application:

[0105] The second baffle plate 610 includes: a connecting rod 6101, which is slidably arranged inside the inert gas chamber; a baffle plate 6102, which is hingedly arranged on the baffle plate 6102; and an elastic component 6103, which is arranged between the connecting rod 6101 and the baffle plate 6102; in actual use, the second baffle plate 610 is used to cover the first through groove 615, thereby changing the overlap range of the first through groove 615 and the second through groove 616; in actual use, the width of the second baffle plate 610 should be smaller than the width of the first through groove 615, so as to avoid the second baffle plate 610 completely covering the first through groove 615, resulting in the air inlet pipe 2 being blocked, thereby affecting the continuous flow of the inert gas into the furnace body 1;

[0106] When the second baffle plate 610 covers the through groove 1 615 with a large area, the pressure inside the air inlet pipe 2 is relatively high. By setting the elastic component 6103, the inert gas inside the air inlet pipe 2 can overcome the elastic force of the elastic component 6103 to push the baffle plate 6102 to rotate, thereby ensuring that the inert gas can continuously enter the interior of the furnace body 1; when the second baffle plate 610 covers the through groove 1 615 with a small area, the pressure inside the air inlet pipe 2 is relatively low. At this time, the inert gas inside the air inlet pipe 2 is difficult to overcome the elastic force of the elastic component 6103 to push the baffle plate 6102 to rotate;

[0107] That is, by providing the elastic component 6103 and the rotatable baffle 6102, pressure relief can be achieved when the pressure in the intake pipe 2 is too high, without affecting the purpose of the baffle 6102 to normally control the opening inside the inert gas chamber.

[0108] As a further illustration of this application:

[0109] The elastic component 6103 includes a curved rod 1 6104 fixedly connected to one side of the connecting rod 6101, and a curved rod 2 6105 fixedly connected to one side of the blocking piece 6102; the curved rod 2 6105 is sleeved inside the curved rod 1 6104, and a spring 6106 is arranged inside the curved rod 1 6104;

[0110] In actual use, when the blocking piece 6102 rotates, the second curved rod 6105 is inserted into the interior of the first curved rod 6104, so that the spring 6106 is compressed; that is, the blocking piece 6102 needs to overcome the elastic force of the spring 6106 when rotating.

[0111] As a further illustration of this application:

[0112] The driving unit 63 includes a motor 631 installed outside the connecting pipe 51, a gear 1 632 fixedly connected to the output shaft of the motor 631, a gear 2 633 fixedly connected to the rotating shaft of the adjusting plate 1 61 and located outside the connecting pipe 51, a gear 3 634 fixedly connected to the rotating shaft of the adjusting plate 2 62 and located outside the connecting pipe 51, and a gear 4 635 rotatably arranged outside the connecting pipe 51;

[0113] Among them, gear one 632 is meshed with gear two 633, gear one 632 is meshed with gear four 635, and gear four 635 is meshed with gear three 634; gear one 632, gear two 633, gear three 634 and gear four 635 are all arranged outside the connecting pipe 51, so as to avoid the dust inside the high-temperature exhaust gas from adhering to the gears and aggravating the wear of the gears;

[0114] After the motor 631 is started, it drives the gear 1 632 to rotate. The gear 1 632 drives the gear 2 633 to rotate on the one hand, and drives the gear 3 634 to rotate through the gear 4 635 on the other hand, so that the adjustment plate 1 61 and the adjustment plate 2 62 can be driven to rotate in opposite directions at the same time;

[0115] When the temperature detection component or the pressure detection component detects that the pressure is too high or too low, the controller controls the motor 631 to rotate, thereby driving the motor 631 to rotate forward or reverse.

[0116] The working principle / steps of this application are:

[0117] When the temperature detection component or the pressure detection component detects that the pressure is too high or too low, the controller controls the motor 631 to rotate;

[0118] The temperature detection component can use thermocouple sensors, thermal resistor sensors, semiconductor temperature sensors, infrared sensors, fiber optic sensors, tungsten-rhenium thermocouples, etc.; because the internal temperature of the graphitization furnace is relatively high during operation, the best choice for the temperature detection component is tungsten-rhenium thermocouple, which is a good ultra-high temperature thermocouple, especially suitable for measuring high temperatures up to 2000°C; tungsten-rhenium thermocouple sensors have the characteristics of stable performance, large temperature measurement range, long-distance signal transmission, simple structure, and easy use; it can directly convert thermal energy into electrical signals and output DC voltage signals, making it easy to display, record, and transmit. Therefore, in industrial environments where extremely high temperatures need to be measured, tungsten-rhenium thermocouples are the preferred temperature sensors;

[0119] The pressure detection component can use a silicon-isolated high-temperature resistant pressure sensor. The working principle of the silicon-isolated high-temperature resistant pressure sensor is based on the piezoresistive effect or the capacitive effect. When pressure acts on the diaphragm of the sensor, it will cause a slight deformation of the diaphragm, thereby changing the value of the resistance or capacitance inside the sensor. By measuring this change, the magnitude of the pressure can be calculated, and it can withstand an instantaneous high temperature shock of 2000°C, which is suitable for the high-temperature environment in this application;

[0120] The controller may be a programmable logic controller (PLC), an intelligent PID controller, a dedicated motor controller, etc. The selection of the controller must meet the basic requirement of controlling the rotation of the motor 631 according to a preset control strategy after receiving the signals from the pressure detection component and the temperature detection component.

[0121] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0122] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0123] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0124] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A graphitization furnace state monitoring system, comprising a furnace body (1), wherein the furnace body (1) is provided with an air inlet pipe (2) for introducing an inert gas, and the furnace body (1) is provided with an exhaust pipe (3) for discharging high-temperature exhaust gas, characterized in that: The exhaust pipe (3) is provided with a pressure detection component for detecting the internal pressure of the furnace body (1) and a temperature detection component for detecting the internal temperature of the furnace body (1); the air inlet pipe (2) and the exhaust pipe (3) are provided with a regulating mechanism (4) for regulating the flow rate of inert gas and the flow rate of high-temperature exhaust gas; the regulating mechanism (4) reduces the internal pressure and temperature of the furnace body (1) by reducing the flow rate of inert gas and increasing the flow rate of high-temperature exhaust gas.

2. The graphitization furnace state monitoring system according to claim 1, characterized in that: The regulating mechanism (4) comprises: A heat exchange component (5) is arranged in communication with the intake pipe (2) and the exhaust pipe (3), and heats the inert gas inside the intake pipe (2) by using the heat of the high-temperature exhaust gas inside the exhaust pipe (3); and The regulating component (6) is arranged inside the heat exchange component (5) and controls the flow rate of the inert gas and the flow rate of the high-temperature exhaust gas by regulating the internal opening of the heat exchange component (5).

3. The graphitization furnace state monitoring system according to claim 2, characterized in that: The heat exchange component (5) comprises: A connecting pipe (51) is connected and arranged on the air inlet pipe (2) and the exhaust pipe (3); and The partition plate (52) is fixedly connected to the interior of the connecting pipe (51), and the connecting pipe (51) is divided into an inert gas chamber and a high-temperature exhaust gas chamber by the partition plate (52). The inert gas chamber is connected to the air inlet pipe (2), and the high-temperature exhaust gas chamber is connected to the exhaust pipe (3).

4. The graphitization furnace state monitoring system according to claim 3, characterized in that: The regulating component (6) comprises: An adjusting plate (61) is rotatably mounted on the partition plate (52); The second adjustment plate (62) is rotatably disposed on the partition (52) and is symmetrically disposed with the first adjustment plate (61); and A driving unit (63) is arranged outside the connecting pipe (51) and is used to drive the first adjusting plate (61) and the second adjusting plate (62) to rotate in opposite directions; One end of the regulating plate 1 (61) and the inner wall of the connecting tube (51) form a through cavity 1 (64), one end of the regulating plate 2 (62) and the inner wall of the connecting tube (51) form a through cavity 2 (65), and one end of the regulating plate 1 (61) and one end of the regulating plate 2 (62) form a through cavity 3 (66); the sum of the areas of the through cavity 1 (64) and the through cavity 2 (65) is greater than the area of ​​the through cavity 3 (66).

5. The graphitization furnace state monitoring system according to claim 4, characterized in that: One end of the adjustment plate 1 (61) is fixedly connected to a fixing plate 1 (67), and one end of the adjustment plate 2 (62) is fixedly connected to a fixing plate 2 (68); the fixing plate 1 (67), the fixing plate 2 (68), the adjustment plate 1 (61), and the adjustment plate 2 (62) together form a through cavity 3 (66).

6. The graphitization furnace state monitoring system according to claim 5, characterized in that: The adjustment component (6) also includes: Baffle 1 (69), fixedly connected inside the inert gas chamber; Baffle plate 2 (610) is slidably disposed inside the inert gas chamber and is attached to one side of baffle plate 1 (69); A gear rod (611) is fixedly connected to one side of the second baffle plate (610); An impeller (612) is rotatably disposed inside the high-temperature exhaust gas chamber; Gear five (613) is fixedly connected to the rotating shaft of the impeller (612) and meshes with the gear rod (611); the high-temperature exhaust gas discharged from the through cavity one (64) or the through cavity three (66) drives the impeller (612) to rotate, thereby driving the baffle plate two (610) to slide.

7. The graphitization furnace state monitoring system according to claim 6, characterized in that: A partial area on one side of the impeller (612) is located at the through cavity one (64), and a partial area on the other side of the impeller (612) is located at the through cavity three (66).

8. The graphitization furnace state monitoring system according to claim 7, characterized in that: The fixing plate 1 (67) is attached to one side of the inner wall of the connecting tube (51), and the fixing plate 2 (68) is attached to the other side of the inner wall of the connecting tube (51). A cavity (614) is provided between the fixing plate 1 (67) and the other side of the inner wall of the connecting tube (51), and the blade height of the impeller (612) is the same as the height of the cavity (614).

9. The graphitization furnace state monitoring system according to claim 6, characterized in that: The baffle plate 1 (69) is provided with a through groove 1 (615), and the baffle plate 2 (610) is provided with a through groove 2 (616).

10. The graphitization furnace state monitoring system according to claim 9, characterized in that: The baffle plate 2 (610) comprises: A connecting rod (6101) is slidably disposed inside the inert gas chamber; A baffle (6102) is hingedly disposed on the baffle (6102); and The elastic component (6103) is arranged between the connecting rod (6101) and the blocking piece (6102).

11. The graphitization furnace state monitoring system according to claim 10, characterized in that: The elastic component (6103) includes a curved rod 1 (6104) fixedly connected to one side of the connecting rod (6101), and a curved rod 2 (6105) fixedly connected to one side of the blocking plate (6102); the curved rod 2 (6105) is sleeved inside the curved rod 1 (6104), and a spring (6106) is arranged inside the curved rod 1 (6104).

12. The graphitization furnace state monitoring system according to claim 4, characterized in that: The driving unit (63) comprises a motor (631) installed outside the connecting tube (51), a gear 1 (632) fixedly connected to the output shaft of the motor (631), a gear 2 (633) fixedly connected to the rotating shaft of the adjusting plate 1 (61) and located outside the connecting tube (51), a gear 3 (634) fixedly connected to the rotating shaft of the adjusting plate 2 (62) and located outside the connecting tube (51), and a gear 4 (635) rotatably arranged outside the connecting tube (51); Among them, gear one (632) and gear two (633) are meshed, gear one (632) and gear four (635) are meshed, and gear four (635) and gear three (634) are meshed.

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