Gas analyzer and anode material sintering furnace

Abstract

The utility model provides a gas analyzer and a positive electrode material sintering furnace. The gas analyzer comprises a furnace body, a gas inlet assembly, a gas exhaust assembly, a gas analysis assembly and a controller. The air inlet assembly comprises an air inlet pipe and an air inlet valve, the air inlet pipe is communicated with the air inlet of the furnace body, and the air inlet valve is arranged on the air inlet pipe; the exhaust assembly comprises an exhaust pipe and an exhaust valve, the exhaust pipe is communicated with the exhaust port of the furnace body, and the exhaust valve is arranged on the exhaust pipe; the gas analysis assembly comprises a gas sensor and a time pixel detector, the gas sensor is used for monitoring the oxygen concentration and the carbon dioxide concentration in the furnace body, and the time pixel detector is used for monitoring the lithium ion concentration in the furnace body; and the gas sensor, the time pixel detector, the gas inlet valve and the exhaust valve are all electrically connected with the controller. Thus, it is ensured that the atmosphere environment in the furnace body is kept at the preset target, the control precision of the treatment process is improved, and abnormity in the furnace body can be found and treated in time.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery manufacturing equipment, and in particular to a gas analyzer and a cathode material sintering furnace. Background Art

[0002] In the field of new energy battery manufacturing, especially in the preparation of cathode materials, box furnaces are a common type of cathode material sintering furnace. They are used to sinter raw materials at high temperatures to form a final product with a specific crystal structure and chemical composition. During this process, the atmosphere within the furnace has a significant impact on product quality. Therefore, how to accurately control the furnace atmosphere is a key issue in the design and operation of box furnaces. In addition, because the sintering process is a complex chemical and physical process involving the generation and consumption of multiple gases, real-time monitoring and adjustment of the furnace atmosphere is also an important condition for ensuring the smooth progress of the sintering process.

[0003] Conventional technology typically uses a continuous, fixed air intake and exhaust system to control the furnace atmosphere. For example, this is achieved by setting the air flow rate or adjusting the exhaust fan's operating power. Furthermore, to monitor the furnace atmosphere, gas sampling ports are typically connected to pressure gauges to provide real-time information on the furnace's atmosphere balance.

[0004] However, the existing technology still has some defects in practical applications. First, since the working status of the air intake and exhaust equipment may be affected by various factors, such as equipment aging, changes in ambient temperature, fluctuations in power supply voltage, etc., it is difficult to ensure that the air intake and exhaust equipment can always work according to the set state, which may cause the atmosphere in the furnace to deviate from the expected target. Secondly, since the existing monitoring equipment can usually only detect oxygen and cannot fully reflect the atmosphere in the furnace, it is impossible to accurately judge the actual reaction conditions in the furnace and improve the control accuracy of the treatment process. Finally, since the existing technology cannot achieve real-time monitoring and adjustment of the atmosphere in the furnace, once an abnormal situation occurs, it often takes a long time to be discovered and handled, which may lead to a decline in product quality and may even cause safety accidents. Utility Model Content

[0005] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a gas analyzer and a positive electrode material sintering furnace that ensures that the atmosphere environment in the furnace body is maintained at a predetermined target, improves the control accuracy of the processing process, and enables abnormalities in the furnace body to be discovered and handled in a timely manner.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A gas analyzer comprising:

[0008] furnace body;

[0009] An air intake assembly, the air intake assembly comprising an air intake pipe and an air intake valve, the air intake pipe being in communication with the air inlet of the furnace body, and the air intake valve being provided on the air intake pipe;

[0010] An exhaust assembly, the exhaust assembly comprising an exhaust pipe and an exhaust valve, the exhaust pipe being in communication with the exhaust port of the furnace body, and the exhaust valve being arranged on the exhaust pipe;

[0011] A gas analysis component, comprising a gas sensor and a time pixel detector, wherein the gas sensor is used to monitor the oxygen concentration and carbon dioxide concentration in the furnace body, and the time pixel detector is used to monitor the lithium ion concentration in the furnace body;

[0012] The gas sensor, the time pixel detector, the intake valve and the exhaust valve are all electrically connected to the controller.

[0013] In some embodiments, the gas sensor includes an oxygen concentration sensor and a carbon dioxide concentration sensor, and both the oxygen concentration sensor and the carbon dioxide concentration sensor are electrically connected to the controller.

[0014] In some embodiments, the time pixel detector includes a sensing semiconductor layer and a single-pixel reading integrator, the single-pixel reading integrator is arranged on one side of the sensing semiconductor layer and electrically connected to the sensing semiconductor layer, the single-pixel reading integrator has an electronic chip built in, the other side of the sensing semiconductor layer is coated with a lithium ion sensitive material layer, and the electronic chip is electrically connected to the controller.

[0015] In some embodiments, the gas sensor is a concentration cell type gas sensor.

[0016] In some embodiments, there are multiple gas analysis components, and the multiple gas analysis components are arranged at intervals in the furnace body.

[0017] In some embodiments, the air intake assembly further includes a numerical flow meter, which is disposed in the air intake pipe and is used to measure the air intake flow rate of the air intake pipe. The numerical flow meter is electrically connected to the controller.

[0018] In some embodiments, the inner wall of the furnace body is provided with a heat-insulating layer.

[0019] In some embodiments, a display is further included, and the display is electrically connected to the controller.

[0020] In some embodiments, a heating element is further included, and the heating element is disposed in the furnace body.

[0021] A cathode material sintering furnace comprises the gas analyzer described in any one of the above embodiments.

[0022] Compared with the prior art, the present disclosure has at least the following advantages:

[0023] 1. The oxygen concentration and carbon dioxide concentration in the furnace body are monitored in real time by the gas sensor and the detection signal is fed back to the controller. The lithium ion concentration in the furnace body is monitored in real time by the time pixel detector and the detection signal is fed back to the controller. When the gas in the furnace body is abnormal, the controller controls at least one of the intake valve and the exhaust valve to adjust the opening, thereby achieving the adjustment of at least one of the intake and exhaust volumes, ensuring that the atmosphere in the furnace body is maintained at the predetermined target. At the same time, the gas analyzer can monitor and adjust the atmosphere in the furnace body in real time, so that the abnormalities in the furnace body can be discovered and handled in time, thereby improving product quality and avoiding safety accidents caused by abnormal atmosphere.

[0024] 2. Since the gas sensor monitors the oxygen concentration and carbon dioxide concentration in the furnace in real time, and the time pixel detector monitors the lithium ion concentration in the furnace in real time, the gas analyzer can detect oxygen, carbon dioxide and lithium ions, so that the gas analyzer can more comprehensively reflect the atmosphere environment in the reaction furnace, which is conducive to accurately judging the actual reaction conditions in the furnace, and thus helping to improve the control accuracy of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 1 is a schematic structural diagram of a gas analyzer according to an embodiment;

[0027] Figure 2 for Figure 1 The circuit diagram of the gas analyzer shown;

[0028] Figure 3 for Figure 1 Schematic diagram of the structure of the time pixel detector of the gas analyzer shown.

[0029] Reference numerals: 10, gas analyzer;

[0030] 100. Furnace body;

[0031] 200, air intake assembly; 210, air intake pipe; 220, air intake valve; 230, numerical flow meter;

[0032] 300, exhaust assembly; 310, exhaust pipe; 320, exhaust valve;

[0033] 400, gas analysis component; 410, gas sensor; 420, time pixel detector; 4201, sensing semiconductor layer; 4202, single pixel readout integrator; 4203, electronic chip; 4204, lithium ion sensitive material layer;

[0034] 500. Controller; 600. Display; 700. Heating element. DETAILED DESCRIPTION

[0035] To facilitate understanding of the present disclosure, a more comprehensive description of the present disclosure will be provided below with reference to the accompanying drawings. The accompanying drawings illustrate preferred embodiments of the present disclosure. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the disclosure.

[0036] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly attached to the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0037] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this disclosure pertains. The terms used herein in the specification of this disclosure are intended only to describe specific embodiments and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0038] In order to better understand the technical solutions and beneficial effects of the present disclosure, the present disclosure is further described in detail below with reference to specific embodiments:

[0039] like Figure 1 and Figure 2As shown, a gas analyzer 10 according to one embodiment includes a furnace body 100, an air intake assembly 200, an exhaust assembly 300, a gas analysis assembly 400, and a controller 500. The air intake assembly 200 includes an air intake pipe 210 and an air intake valve 220. The air intake pipe 210 is connected to the air intake port of the furnace body 100, and the air intake valve 220 is disposed on the air intake pipe 210. The exhaust assembly 300 includes an exhaust pipe 310 and an exhaust valve 320. The exhaust pipe 310 is connected to the exhaust port of the furnace body 100, and the exhaust valve 320 is disposed on the exhaust pipe 310. The gas analysis assembly 400 includes a gas sensor 410 and a time pixel detector 420. The gas sensor 410 is used to monitor the oxygen concentration and carbon dioxide concentration within the furnace body 100, and the time pixel detector 420 is used to monitor the lithium ion concentration within the furnace body 100. The gas sensor 410, the time pixel detector 420, the intake valve 220 and the exhaust valve 320 are all electrically connected to the controller 500, so that the controller 500 is used to receive the detection signal of the gas sensor 410 and the detection signal of the time pixel detector 420. The controller 500 adjusts the opening of the intake valve 220 and the exhaust valve 320 according to the detection signal, thereby achieving the adjustment of the intake flow rate and the exhaust flow rate.

[0040] like Figure 1 and Figure 2 As shown, in this embodiment, the gas analyzer 10 is used in applications requiring precise control of the atmosphere, such as sintering processes or catalytic reactions. The gas sensor 410 monitors the oxygen and carbon dioxide concentrations within the furnace 100 in real time, and feeds the corresponding detection signals back to the controller 500. The time pixel detector 420 monitors the lithium ion concentration within the furnace 100 in real time, and feeds the corresponding detection signals back to the controller 500. When an abnormality is detected in the gas within the furnace 100, the controller 500 controls the opening of at least one of the inlet valve 220 and the exhaust valve 320.

[0041] It is understood that the intake valve 220 can be a solenoid intake valve, an electric intake valve, or other existing intake valves with adjustable openings. The exhaust valve 320 can be an electric gate valve, a solenoid gate valve, or other existing exhaust valves with adjustable openings.

[0042] The above-mentioned gas analyzer 10 monitors the oxygen concentration and carbon dioxide concentration in the furnace body 100 in real time through the gas sensor 410 and feeds back the detection signal to the controller 500, and monitors the lithium ion concentration in the furnace body 100 in real time through the time pixel detector 420 and feeds back the detection signal to the controller 500. When the gas in the furnace body 100 is abnormal, the controller 500 controls at least one of the intake valve 220 and the exhaust valve 320 to adjust the opening, thereby achieving the adjustment of at least one of the intake volume and the exhaust volume, ensuring that the atmosphere environment in the furnace body 100 remains at the predetermined target, and at the same time enables the gas analyzer 10 to monitor and adjust the atmosphere in the furnace body 100 in real time, so that the abnormality in the furnace body 100 can be discovered and handled in time, thereby improving the quality of the product and avoiding safety accidents caused by abnormal atmosphere.

[0043] Since the gas sensor 410 monitors the oxygen concentration and carbon dioxide concentration in the furnace body 100 in real time, and the time pixel detector 420 monitors the lithium ion concentration in the furnace body 100 in real time, the gas analyzer 10 can detect oxygen, carbon dioxide and lithium ions, so that the gas analyzer 10 can more comprehensively react to the atmosphere environment in the furnace body 100, which is conducive to accurately judging the actual reaction conditions in the furnace body 100, and further conducive to improving the control accuracy of the processing process.

[0044] like Figure 1 As shown, in some embodiments, the gas sensor 410 includes an oxygen concentration sensor and a carbon dioxide concentration sensor, both of which are electrically connected to the controller 500. In this embodiment, the oxygen concentration sensor is used to monitor the concentration of oxygen, and the carbon dioxide concentration sensor is used to monitor the concentration of carbon dioxide, so that the gas sensor can be used to simultaneously monitor the concentrations of oxygen and carbon dioxide. Of course, in other embodiments, the gas sensor 410 may also include only one sensor that can simultaneously monitor oxygen and carbon dioxide.

[0045] like Figure 3 As shown, in some embodiments, the time pixel detector 420 includes a sensing semiconductor layer 4201 and a single-pixel reading integrator 4202, the single-pixel reading integrator 4202 is arranged on one side of the sensing semiconductor layer 4201 and is electrically connected to the sensing semiconductor layer 4201, the single-pixel reading integrator 4202 has an electronic chip 4203 built in, the other side of the sensing semiconductor layer 4201 is coated with a lithium ion sensitive material layer 4204, and the electronic chip 4203 is electrically connected to the controller 500.

[0046] like Figure 1 and Figure 3As shown, in this embodiment, the lithium-ion sensitive material layer 4204 is a cation exchange resin layer, which is used to sense and collect lithium ions. The sensing semiconductor layer 4201 includes an N-type semiconductor and a P-type semiconductor, which are used to calculate the collected lithium ions and convert them into counting information. The counting information is transmitted to the single-pixel reading integrator 4202 via an information transmission channel. The single-pixel reading integrator 4202 includes an electronic chip 4203, which processes the counting information and transmits it to the controller 500. The controller 500 adjusts the opening of the intake valve 220 and the exhaust valve 320 based on the detected lithium ion concentration.

[0047] like Figure 1 As shown, in some embodiments, the gas sensor 410 is a concentration cell type gas sensor, so that the gas sensor 410 can detect oxygen concentration and carbon dioxide concentration.

[0048] It is understandable that the gas sensor 410 may also be an electrochemical sensor, an infrared sensor, a solid electrolyte sensor, a laser spectrum sensor, or other existing sensors or detectors that can simultaneously detect oxygen concentration and carbon dioxide concentration.

[0049] like Figure 1 As shown, in some embodiments, there are multiple gas analysis assemblies 400, and the multiple gas analysis assemblies 400 are spaced apart and arranged in the furnace body 100. In this embodiment, the gas at multiple locations in the furnace body 100 is detected by the multiple gas analysis assemblies 400, thereby improving the detection accuracy.

[0050] like Figure 1 and Figure 2 As shown, in some embodiments, the intake assembly 200 further includes a numerical flowmeter 230, which is disposed on the intake pipe 210 and is used to measure the intake flow rate of the intake pipe 210. The numerical flowmeter 230 is also electrically connected to the controller 500, so that the numerical flowmeter 230 feeds back the measured data to the controller 500. In this embodiment, the intake flow rate of the intake pipe 210 is measured by the numerical flowmeter 230, and the measured data is fed back to the controller 500, so that the controller 500 can adjust the opening of the intake valve 220 according to the actual intake flow rate, so that the opening of the intake valve 220 is adjusted to a target value, thereby improving the accuracy of the opening adjustment of the intake valve 220.

[0051] like Figure 1 As shown, in some embodiments, the inner wall of the furnace body 100 is provided with an insulation layer. In this embodiment, the insulation layer insulates the furnace body 100, thereby reducing the energy consumption of the furnace body. It is understood that the insulation layer can be a fiber insulation blanket layer, a glass fiber layer, a ceramic fiber layer, or other existing insulation layers.

[0052] like Figure 1 As shown, in some embodiments, the cathode material sintering furnace 10 further includes a display 600, which is electrically connected to the controller 500. In this embodiment, the display 600 is used to display the gas concentration and set the concentration standard, thereby improving the convenience of obtaining the atmosphere of the furnace body 100 and setting the concentration standard.

[0053] like Figure 1 As shown, in some embodiments, the positive electrode material sintering furnace 10 further includes a heating element 700 , which is disposed in the furnace body and is used to heat the air in the furnace body 100 so that the product can be sintered in the furnace body 100 .

[0054] like Figure 1 As shown, in some embodiments, the working process of the positive electrode material sintering furnace 10 is: the standard concentrations of various gases are set on the display 600, the gas sensor 410 monitors the oxygen concentration and carbon dioxide concentration in the furnace body 100 in real time and feeds back the detection signal to the controller 500, the time pixel detector 420 monitors the lithium ion concentration in the furnace body 100 in real time and feeds back the detection signal to the controller 500, the controller 500 receives the detection signals from the gas sensor 410 and the time pixel detector 420, that is, the controller 500 receives the actual concentrations of oxygen, carbon dioxide and lithium ions, the controller 500 determines whether the actual concentration deviates from the standard concentration, when the actual concentration deviates from the standard concentration, that is, when there is an abnormality in the gas in the furnace body 100, the controller 500 controls at least one of the intake valve 220 and the exhaust valve 320 to adjust the opening, that is, the controller 500 adjusts at least one of the intake valve 220 and the exhaust valve 320.

[0055] The present disclosure also provides a positive electrode material sintering furnace, comprising the gas analyzer described in any of the above embodiments.

[0056] Compared with the prior art, the present disclosure has at least the following advantages:

[0057] 1. The oxygen concentration and carbon dioxide concentration in the furnace body 100 are monitored in real time by the gas sensor 410 and the detection signal is fed back to the controller 500. The lithium ion concentration in the furnace body 100 is monitored in real time by the time pixel detector 420 and the detection signal is fed back to the controller 500. When the gas in the furnace body 100 is abnormal, the controller 500 controls at least one of the intake valve 220 and the exhaust valve 320 to adjust the opening, thereby achieving the adjustment of at least one of the intake and exhaust volumes, ensuring that the atmosphere in the furnace body 100 remains at the predetermined target. At the same time, the gas analyzer 10 can monitor and adjust the atmosphere in the furnace body 100 in real time, so that the abnormality in the furnace body 100 can be discovered and handled in a timely manner, thereby improving product quality and avoiding safety accidents caused by abnormal atmosphere.

[0058] 2. Since the gas sensor 410 monitors the oxygen concentration and carbon dioxide concentration in the furnace body 100 in real time, and the time pixel detector 420 monitors the lithium ion concentration in the furnace body 100 in real time, the gas analyzer 10 can detect oxygen, carbon dioxide and lithium ions, so that the gas analyzer 10 can more comprehensively reflect the atmosphere environment in the furnace body 100, which is conducive to accurately judging the actual reaction conditions in the furnace body 100, and further conducive to improving the control accuracy of the processing process.

[0059] The above-described embodiments merely represent several implementation methods of the present disclosure. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the disclosed patent. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the scope of the present disclosure, all of which fall within the scope of protection of the present disclosure. Therefore, the scope of protection of the disclosed patent shall be determined by the appended claims.

Claims

1. A gas analyzer, characterized in that: include: Furnace body (100); An air intake assembly (200), the air intake assembly (200) comprising an air intake pipe (210) and an air intake valve (220), the air intake pipe (210) being in communication with an air intake port of the furnace body (100), and the air intake valve (220) being provided on the air intake pipe (210); An exhaust assembly (300), the exhaust assembly (300) comprising an exhaust pipe (310) and an exhaust valve (320), the exhaust pipe (310) being in communication with an exhaust port of the furnace body (100), and the exhaust valve (320) being disposed on the exhaust pipe (310); A gas analysis component (400) includes a gas sensor (410) and a time pixel detector (420), wherein the gas sensor (410) is used to monitor the oxygen concentration and carbon dioxide concentration in the furnace body (100), and the time pixel detector (420) is used to monitor the lithium ion concentration in the furnace body (100); The controller (500), the gas sensor (410), the time pixel detector (420), the intake valve (220) and the exhaust valve (320) are all electrically connected to the controller (500).

2. The gas analyzer according to claim 1, characterized in that The gas sensor (410) includes an oxygen concentration sensor and a carbon dioxide concentration sensor, and both the oxygen concentration sensor and the carbon dioxide concentration sensor are electrically connected to the controller (500).

3. The gas analyzer according to claim 1, characterized in that The time pixel detector (420) comprises a sensing semiconductor layer (4201) and a single-pixel reading integrator (4202), wherein the single-pixel reading integrator (4202) is arranged on one side of the sensing semiconductor layer (4201) and is electrically connected to the sensing semiconductor layer (4201), and the single-pixel reading integrator (4202) has an electronic chip (4203) built in, and the other side of the sensing semiconductor layer (4201) is coated with a lithium ion sensitive material layer (4204), and the electronic chip (4203) is electrically connected to the controller (500).

4. The gas analyzer according to claim 1, characterized in that The gas sensor (410) is a concentration cell type gas sensor.

5. The gas analyzer according to claim 1, characterized in that There are multiple gas analysis components (400), and the multiple gas analysis components (400) are arranged at intervals on the furnace body (100).

6. The gas analyzer according to claim 1, characterized in that The air intake assembly (200) further comprises a numerical flow meter (230), the numerical flow meter (230) being arranged on the air intake pipe (210), the numerical flow meter (230) being used to measure the air intake flow rate of the air intake pipe (210), and the numerical flow meter (230) being electrically connected to the controller (500).

7. The gas analyzer according to claim 1, characterized in that The inner wall of the furnace body (100) is provided with a heat-insulating layer.

8. The gas analyzer according to claim 1, characterized in that It also includes a display (600), and the display (600) is electrically connected to the controller (500).

9. The gas analyzer according to claim 1, characterized in that It also includes a heating element (700), which is arranged in the furnace body (100).

10. A cathode material sintering furnace comprising the gas analyzer according to any one of claims 1 to 9.

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