A dual pneumatic pipeline roaster combustion station

Abstract

The utility model relates to the technical field of roasting furnace combustion station discloses a kind of double pneumatic pipeline roasting furnace combustion station, including roasting furnace, with the first pneumatic control component of being communicated and being equipped with gas pipeline of roasting furnace, with the second pneumatic control component of being communicated and being equipped with combustion-supporting gas pipeline, and by the pneumatic pipeline of first pneumatic pipeline and second pneumatic pipeline being independent of each other. First pneumatic pipeline and second pneumatic pipeline are communicated with first pneumatic control component, second pneumatic control component respectively, for conveying compressed air to control its action. Through this double pneumatic pipeline design, effectively solve the problem that existing technology causes pneumatic valve to lose control closure due to pipeline blockage or disconnection between pneumatic valve and compressed air source, affect normal supply of fuel and combustion-supporting gas, improve the stability of roasting furnace combustion station pneumatic valve operation, ensure the stable operation of roasting furnace combustion station, reduce productivity loss, prolong the service life of furnace body, pipeline, valve and other equipment.

Description

Technical Field

[0001] This utility model relates to the technical field of roasting furnace combustion stations, specifically a dual-pneumatic pipeline roasting furnace combustion station. Background Technology

[0002] The calcining furnace combustion station plays a crucial role in the alumina production process and is the core equipment for calcining aluminum hydroxide. It transfers heat to the materials inside the furnace through the high-temperature flue gas generated by burning fuel, driving the materials to dehydrate, transform crystal form, and remove impurities, thereby achieving specific process objectives.

[0003] The stable operation of the calcining furnace combustion station depends on a continuous and stable supply of fuel and combustion-supporting fuel. In existing technology, pneumatic valves are used as control valves for the fuel and combustion-supporting fuel supply lines. Compressed air is the power source for the pneumatic valve's operation and is crucial for precise control. When the pipeline between the pneumatic valve and the compressed air source is blocked or disconnected, the pneumatic valve will close uncontrollably, affecting the normal supply of fuel and combustion-supporting fuel. This will force an interruption of the alumina production process, causing the material to be scrapped due to incomplete reaction, requiring the furnace to be emptied and refilled, resulting in significant capacity loss. Furthermore, the rapid temperature changes inside the furnace generate thermal stress, affecting the service life of the furnace body, pipelines, and valves.

[0004] Therefore, improving the operational stability of the pneumatic valves in the calciner combustion station to ensure the normal supply of fuel and combustion-supporting gas is key to ensuring the stable operation of the calciner combustion station and improving production efficiency. Utility Model Content

[0005] To overcome the problems existing in related technologies, this utility model provides a dual pneumatic pipeline calcining furnace combustion station. By setting up dual pneumatic pipelines, it ensures that when a single pneumatic pipeline fails, it can quickly switch to the other pneumatic pipeline to maintain the normal operation of the pneumatic valve and the continuous supply of gas and auxiliary gas, thereby avoiding production process interruption, equipment thermal stress damage and capacity loss, and significantly improving the stability and reliability of the combustion station operation.

[0006] The technical solution adopted in this utility model is: a combustion station for a dual-pneumatic pipeline roasting furnace, comprising...

[0007] roaster;

[0008] A gas pipeline is connected to the roasting furnace, and the gas pipeline is equipped with a first pneumatic control component.

[0009] A gas-supporting pipeline is connected to the roasting furnace, and the gas-supporting pipeline is equipped with a second pneumatic control component.

[0010] The pneumatic pipeline includes a first pneumatic pipeline and a second pneumatic pipeline that are independent of each other. The first pneumatic pipeline is connected to the first pneumatic control component and the second pneumatic control component, respectively. The second pneumatic pipeline is connected to the first pneumatic control component and the second pneumatic control component, respectively.

[0011] The first pneumatic line and the second pneumatic line are used to supply compressed air to the first pneumatic control component and the second pneumatic control component to control the operation of the first pneumatic control component and the second pneumatic control component.

[0012] Furthermore, the first pneumatic control component includes a first gas pneumatic valve, a second gas pneumatic valve, and a first venting pneumatic valve. The inlet of the first gas pneumatic valve is connected to a gas source, the outlet of the first gas pneumatic valve is connected to the inlet of the second gas pneumatic valve, the outlet of the second gas pneumatic valve is connected to the roasting furnace, and the first venting pneumatic valve is located on the gas pipeline between the first gas pneumatic valve and the second gas pneumatic valve.

[0013] The first pneumatic pipeline is connected to the first gas pneumatic valve, the second gas pneumatic valve and the first venting pneumatic valve respectively, and the second pneumatic pipeline is connected to the first gas pneumatic valve, the second gas pneumatic valve and the first venting pneumatic valve respectively.

[0014] Furthermore, the first gas pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a first gas pneumatic branch, and the first gas pneumatic branch is equipped with a first gas control valve. The second gas pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a second gas pneumatic branch, and the second gas pneumatic branch is equipped with a second gas control valve. The first venting pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a first venting pneumatic branch, and the first venting pneumatic branch is equipped with a first venting control valve.

[0015] Furthermore, the second pneumatic control component includes a first combustion-supporting pneumatic valve, one end of which is connected to a combustion-supporting gas source, and the other end is connected to the roasting furnace.

[0016] The first pneumatic pipeline and the second pneumatic pipeline are respectively connected to the first gas-supporting pneumatic valve.

[0017] Furthermore, the first gas-supporting pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through the first gas-supporting pneumatic branch, and the first gas-supporting pneumatic branch is equipped with a first gas-supporting pneumatic control valve.

[0018] Furthermore, the first pneumatic pipeline is connected to a compressed air tank, and the first pneumatic pipeline includes a first shut-off valve, a first ball valve, a compressed air source triplet, and a second ball valve;

[0019] The first shut-off valve inlet is connected to the compressed air tank, the first shut-off valve outlet is connected to the first ball valve inlet, the first ball valve outlet is connected to the compressed air source triplet inlet, the compressed air source triplet outlet is connected to the second ball valve inlet, and the second ball valve outlet is connected to the first pneumatic control component and the second pneumatic control component via pipelines.

[0020] Furthermore, the second pneumatic pipeline is equipped with a third ball valve, the air inlet of which is connected to the air outlet of the first shut-off valve, and the air outlet of which is connected to the first pneumatic control component and the second pneumatic control component through pipelines respectively.

[0021] Furthermore, the compressed air tank is equipped with a drain valve and an intake valve. The intake valve is connected to the compressed air source, and the drain valve is used to drain the compressed air tank.

[0022] This utility model of a dual-pneumatic pipeline calcining furnace combustion station has the following technical advantages: By setting up independent first and second pneumatic pipelines, each connected to a first pneumatic control component of the fuel gas pipeline and a second pneumatic control component of the auxiliary fuel gas pipeline, when one pneumatic pipeline becomes blocked or disconnected, the other pneumatic pipeline can still normally supply compressed air to both the first and second pneumatic control components, ensuring their normal operation. This guarantees a continuous and stable supply of fuel and auxiliary fuel gas, effectively preventing interruptions in the alumina production process due to uncontrolled closure of pneumatic valves, and greatly improving the operational stability of the pneumatic valves in the calcining furnace combustion station. Thus, it avoids the situation where materials are scrapped due to incomplete reaction caused by pneumatic valve failure, reducing production capacity loss and effectively improving production efficiency. On the other hand, it maintains a relatively stable temperature inside the roasting furnace, avoiding drastic temperature changes due to abnormal fuel and combustion gas supply. This reduces thermal stress on the furnace body, pipes, valves, and other equipment, effectively extending their service life and reducing maintenance costs and replacement frequency.

[0023] Other features and advantages disclosed in this utility model will be described in detail in the following detailed description section. Attached Figure Description

[0024] The accompanying drawings are provided to further illustrate the present disclosure and form part of the specification. They are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation thereof. In the drawings:

[0025] Figure 1 This is a block diagram of a combustion station structure for a dual-pneumatic pipeline roasting furnace, according to an exemplary embodiment.

[0026] Figure reference numerals: 10, Dual-pneumatic pipeline calciner combustion station; 20, calciner; 30, gas pipeline; 40, auxiliary gas pipeline; 50, pneumatic pipeline; 51, first pneumatic pipeline; 511, first shut-off valve; 512, first ball valve; 513, compressed air source triplet; 514, second ball valve; 52, second pneumatic pipeline; 521, third ball valve; 61, first gas pneumatic valve; 611, first gas pneumatic branch; 612, First gas control valve; 62, Second gas pneumatic valve; 621, Second gas pneumatic branch; 622, Second gas control valve; 63, First vent pneumatic valve; 631, First vent pneumatic branch; 632, First vent control valve; 71, First auxiliary gas pneumatic valve; 711, First auxiliary gas pneumatic branch; 712, First auxiliary gas pneumatic control valve; 80, Compressed air tank; 81, Drain valve; 82, Inlet valve. Detailed Implementation

[0027] The specific embodiments disclosed herein will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this disclosure.

[0028] like Figure 1 The image shows a disclosed exemplary embodiment of the present invention. The dual-pneumatic pipeline calcining furnace combustion station 10 of the present invention includes a calcining furnace 20, a gas pipeline 30, an auxiliary gas pipeline 40, and a pneumatic pipeline 50. The gas pipeline 30 is connected to the calcining furnace 20. The gas pipeline 30 is equipped with a first pneumatic control component. The auxiliary gas pipeline 40 is connected to the calcining furnace 20. The auxiliary gas pipeline 40 is equipped with a second pneumatic control component. The pneumatic pipeline 50 includes a first pneumatic pipeline 51 and a second pneumatic pipeline 52, which are independent of each other. The first pneumatic pipeline 51 is connected to both the first and second pneumatic control components, and the second pneumatic pipeline 52 is connected to both the first and second pneumatic control components. The first and second pneumatic pipelines 51 and 52 are used to supply compressed air to the first and second pneumatic control components to control their operation.

[0029] This utility model's dual-pneumatic pipeline roasting furnace combustion station 10 establishes a dual-protection system by setting up independent first pneumatic pipelines 51 and second pneumatic pipelines 52, both connected to the first and second pneumatic control components. In a traditional single pneumatic pipeline system, if the pneumatic pipeline 50 becomes blocked, disconnected, or experiences insufficient air pressure, the pneumatic control component will lose power and close uncontrollably, directly leading to an interruption in fuel and combustion gas supply. In this utility model, when the first pneumatic pipeline 51 fails, the second pneumatic pipeline 52 can immediately and seamlessly take over, continuously supplying compressed air to the first and second pneumatic control components to maintain their normal operation. Similarly, when the second pneumatic pipeline 52 fails, the first pneumatic pipeline 51 can still function. This ensures the normal switching of the pneumatic control components of the gas pipeline 30 and the auxiliary gas pipeline 40, effectively preventing interruptions in the alumina production process due to malfunctions in the pneumatic pipeline 50. It significantly improves the stability and reliability of the calcining furnace combustion station 10, reduces capacity loss, and increases production efficiency. On the other hand, it maintains a relatively stable temperature within the calcining furnace 20, preventing drastic temperature changes due to abnormal fuel and auxiliary gas supply. This reduces thermal stress damage to the furnace body, pipelines, valves, and other equipment, effectively extending their service life and lowering maintenance costs and replacement frequency.

[0030] For example, in an exemplary embodiment disclosed in this utility model, the first pneumatic control component includes a first gas pneumatic valve 61, a second gas pneumatic valve 62, and a first venting pneumatic valve 63. The inlet of the first gas pneumatic valve 61 is connected to a gas source, the outlet of the first gas pneumatic valve 61 is connected to the inlet of the second gas pneumatic valve 62, and the outlet of the second gas pneumatic valve 62 is connected to a roasting furnace 20. The first venting pneumatic valve 63 is disposed on a gas pipeline 30 between the first gas pneumatic valve 61 and the second gas pneumatic valve 62. The first pneumatic pipeline 51 is connected to the first gas pneumatic valve 61, the second gas pneumatic valve 62, and the first venting pneumatic valve 63, respectively, and the second pneumatic pipeline 52 is connected to the first gas pneumatic valve 61, the second gas pneumatic valve 62, and the first venting pneumatic valve 63, respectively.

[0031] The second pneumatic control component includes a first gas-supporting pneumatic valve 71, one end of which is connected to a gas-supporting source and the other end is connected to a roasting furnace 20; a first pneumatic pipeline 51 and a second pneumatic pipeline 52 are respectively connected to the first gas-supporting pneumatic valve 71.

[0032] In the exemplary embodiment disclosed in this utility model, the first pneumatic control component comprises a first gas pneumatic valve 61, a second gas pneumatic valve 62, and a first venting pneumatic valve 63. The first gas pneumatic valve 61 controls the gas to enter the gas pipeline 30 from the gas source, and the second gas pneumatic valve 62 further controls the gas to enter the roasting furnace 20, forming a two-stage control to enhance the accuracy and safety of the gas supply. The first venting pneumatic valve 63 is installed on the gas pipeline 30 between the first gas pneumatic valve 61 and the second gas pneumatic valve 62. When an abnormality occurs in the combustion station of the roasting furnace 20, such as excessive pressure or other malfunctions, the gas in the gas pipeline 30 can be released in a timely manner to avoid safety accidents caused by gas accumulation.

[0033] The second pneumatic control component includes a first auxiliary gas pneumatic valve 71, which has a relatively simple structure but can precisely control the supply of auxiliary gas from the gas source to the roasting furnace 20. Through the first auxiliary gas pneumatic valve 71, the flow rate and pressure of the auxiliary gas can be flexibly adjusted according to the roasting process requirements to ensure optimal mixing with the gas, making the combustion process more complete and efficient, and improving the roasting quality. Similarly, the first pneumatic pipeline 51 and the second pneumatic pipeline 52 are respectively connected to the first auxiliary gas pneumatic valve 71 to provide redundancy. When one pneumatic pipeline 50 fails, the other pneumatic pipeline 50 can maintain the normal operation of the first auxiliary gas pneumatic valve 71, ensuring a stable supply of auxiliary gas and preventing abnormal auxiliary gas supply from affecting the combustion effect and production stability of the roasting furnace 20.

[0034] Specifically, in the exemplary embodiments disclosed in this utility model, the first gas pneumatic valve 61 is connected to the first pneumatic pipeline 51 and the second pneumatic pipeline 52 via a first gas pneumatic branch 611, and the first gas pneumatic branch 611 is equipped with a first gas control valve 612. The second gas pneumatic valve 62 is connected to the first pneumatic pipeline 51 and the second pneumatic pipeline 52 via a second gas pneumatic branch 621, and the second gas pneumatic branch 621 is equipped with a second gas control valve 622. The first venting pneumatic valve is connected to the first pneumatic pipeline 51 and the second pneumatic pipeline 52 via a first venting pneumatic branch 631, and the first venting pneumatic branch 631 is equipped with a first venting control valve 632. The first combustion-supporting pneumatic valve 71 is connected to the first pneumatic pipeline 51 and the second pneumatic pipeline 52 via a first combustion-supporting pneumatic branch 711, and the first combustion-supporting pneumatic branch 711 is equipped with a first combustion-supporting pneumatic control valve 712.

[0035] In the exemplary embodiment disclosed in this utility model, the first gas pneumatic valve 61, the second gas pneumatic valve 62, the first venting pneumatic valve 63, and the first auxiliary gas pneumatic valve 71 are respectively connected to the first pneumatic pipeline 51 and the second pneumatic pipeline 52 through their respective independent pneumatic branches. Corresponding control valves are installed in each pneumatic branch, allowing the compressed air supply to the first gas pneumatic valve 61, the second gas pneumatic valve 62, the first venting pneumatic valve 63, and the first auxiliary gas pneumatic valve 71 to be independently adjustable, thus enabling independent control of each pneumatic valve. In actual production, operators can adjust the compressed air flow and pressure of each pneumatic branch by adjusting the control valves according to production needs, thereby precisely controlling the opening degree of each pneumatic valve. In this way, the supply speed and pressure of the gas and auxiliary gas can be flexibly adjusted to adapt to different process requirements and optimize the roasting process.

[0036] For example, in an exemplary embodiment disclosed in this utility model, the first pneumatic pipeline 51 of the dual-pneumatic pipeline roasting furnace combustion station 10 of this utility model is connected to the compressed air tank 80. The first pneumatic pipeline 51 includes a first shut-off valve 511, a first ball valve 512, a compressed air source triplet 513, and a second ball valve 514. The inlet of the first shut-off valve 511 is connected to the compressed air tank 80, the outlet of the first shut-off valve 511 is connected to the inlet of the first ball valve 512, the outlet of the first ball valve 512 is connected to the inlet of the compressed air source triplet 513, the outlet of the compressed air source triplet 513 is connected to the inlet of the second ball valve 514, and the outlet of the second ball valve 514 is connected to the first pneumatic control component and the second pneumatic control component respectively through pipelines.

[0037] The second pneumatic pipeline 52 is equipped with a third ball valve 521. The air inlet of the third ball valve 521 is connected to the air outlet of the first shut-off valve 511. The air outlet of the third ball valve 521 is connected to the first pneumatic control component and the second pneumatic control component through pipelines respectively.

[0038] In an exemplary embodiment of this utility model, a first shut-off valve 511 is provided in the first pneumatic pipeline 51. The inlet of the first shut-off valve 511 is connected to the compressed air tank 80, and the outlet of the first shut-off valve 511 is connected to the inlet of the first ball valve 512 and the inlet of the third ball valve 521, respectively. When the combustion station of the roasting furnace 20 is under maintenance or in an emergency, the operator can quickly close the first shut-off valve 511 to cut off the connection between the compressed air tank 80 and the first pneumatic pipeline 51 and the second pneumatic pipeline 52, thereby controlling the operation of the first pneumatic control component and the second pneumatic control component to shut off the gas pipeline 30 and the combustion-supporting gas pipeline 40.

[0039] The first ball valve 512 can finely regulate the flow rate of compressed air. By adjusting the opening of the first ball valve 512, the operator can precisely control the flow rate of compressed air entering the downstream according to the actual working conditions, ensuring that the first pneumatic control component and the second pneumatic control component can obtain the appropriate flow rate of compressed air at each stage, thereby achieving the corresponding opening adjustment, realizing precise control of fuel and combustion gas supply, and ensuring the smooth progress of the roasting process.

[0040] The compressed air supply triplet 513 includes a filter, a pressure reducing valve, and a lubricator. The filter in the triplet effectively removes solid impurities such as dust and rust from the compressed air. The pressure reducing valve adjusts the unstable compressed air pressure from the compressed air tank 80 to a stable and suitable value. The lubricator adds an appropriate amount of lubricating oil mist to the compressed air, providing lubrication, reducing frictional resistance between components, and making valve operation smoother.

[0041] The outlet of the second ball valve 514 is connected to both the first and second pneumatic control components, allowing for flexible cutting off or restoration of the air supply. Furthermore, the second ball valve 514 also prevents compressed air backflow, protecting the upstream compressed air supply triplet 513 from abnormal pressure surges.

[0042] The third ball valve 521 is installed in the second pneumatic pipeline 52, with its inlet connected to the outlet of the first shut-off valve 511. The outlet of the third ball valve 521 connects to the first and second pneumatic control components. Combining the existing valves and components in the first pneumatic pipeline 51, the third ball valve 521 further improves the redundancy design of the dual pneumatic pipeline 50. When a component in the first pneumatic pipeline 51 malfunctions and cannot supply air to the pneumatic control components normally, the third ball valve 521 can be quickly opened, providing compressed air to the first and second pneumatic control components through the second pneumatic pipeline 52, ensuring that the pneumatic control components can continue to operate normally.

[0043] For example, in an exemplary embodiment disclosed in this utility model, the compressed air tank 80 of the dual-pneumatic pipeline roasting furnace combustion station 10 of this utility model is equipped with a drain valve 81 and an inlet valve 82. The inlet valve 82 is connected to the compressed air source, and the drain valve 81 is used to drain the compressed air tank 80. During the compression process, compressed air may mix with contaminants such as moisture, oil, and solid impurities. The drain valve 81 can periodically or when necessary discharge these contaminants accumulated at the bottom of the compressed air tank 80. The inlet valve 82 connects the compressed air source and the compressed air tank 80, controls the compressed air entering the compressed air tank 80, and regulates the air flow and pressure inside the compressed air tank 80.

[0044] The preferred embodiments of this disclosure have been described in detail above with reference to the accompanying drawings. However, this disclosure is not limited to the specific details of the above embodiments. Within the scope of the technical concept of this disclosure, various simple modifications can be made to the technical solutions of this disclosure, and these simple modifications all fall within the protection scope of this disclosure.

[0045] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, this disclosure will not describe the various possible combinations separately.

[0046] Furthermore, various different embodiments of this disclosure can be combined in any way, as long as they do not violate the spirit of this disclosure, they should also be regarded as the content disclosed in this disclosure.

Claims

1. A combustion station for a dual-pneumatic pipeline roasting furnace, characterized in that: include roaster; A gas pipeline is connected to the roasting furnace, and the gas pipeline is equipped with a first pneumatic control component; A gas-supporting pipeline is connected to the roasting furnace, and the gas-supporting pipeline is equipped with a second pneumatic control component. The pneumatic pipeline includes a first pneumatic pipeline and a second pneumatic pipeline that are independent of each other. The first pneumatic pipeline is connected to the first pneumatic control component and the second pneumatic control component, respectively. The second pneumatic pipeline is connected to the first pneumatic control component and the second pneumatic control component, respectively. The first pneumatic line and the second pneumatic line are used to supply compressed air to the first pneumatic control component and the second pneumatic control component to control the operation of the first pneumatic control component and the second pneumatic control component.

2. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 1, characterized in that, The first pneumatic control component includes a first gas pneumatic valve, a second gas pneumatic valve, and a first venting pneumatic valve. The inlet of the first gas pneumatic valve is connected to a gas source, the outlet of the first gas pneumatic valve is connected to the inlet of the second gas pneumatic valve, the outlet of the second gas pneumatic valve is connected to the roasting furnace, and the first venting pneumatic valve is located on the gas pipeline between the first gas pneumatic valve and the second gas pneumatic valve. The first pneumatic pipeline is connected to the first gas pneumatic valve, the second gas pneumatic valve and the first venting pneumatic valve respectively, and the second pneumatic pipeline is connected to the first gas pneumatic valve, the second gas pneumatic valve and the first venting pneumatic valve respectively.

3. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 2, characterized in that, The first gas pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a first gas pneumatic branch. The first gas pneumatic branch is equipped with a first gas control valve. The second gas pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a second gas pneumatic branch. The second gas pneumatic branch is equipped with a second gas control valve. The first venting pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through a first venting pneumatic branch. The first venting pneumatic branch is equipped with a first venting control valve.

4. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 1, characterized in that, The second pneumatic control component includes a first combustion-supporting pneumatic valve, one end of which is connected to a combustion-supporting gas source and the other end of which is connected to the roasting furnace; The first pneumatic pipeline and the second pneumatic pipeline are respectively connected to the first gas-supporting pneumatic valve.

5. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 4, characterized in that, The first gas-supporting pneumatic valve is connected to the first pneumatic pipeline and the second pneumatic pipeline respectively through the first gas-supporting pneumatic branch, and the first gas-supporting pneumatic branch is equipped with a first gas-supporting pneumatic control valve.

6. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 1, characterized in that, The first pneumatic pipeline is connected to a compressed air tank, and the first pneumatic pipeline includes a first shut-off valve, a first ball valve, a compressed air source triplet, and a second ball valve; The first shut-off valve inlet is connected to the compressed air tank, the first shut-off valve outlet is connected to the first ball valve inlet, the first ball valve outlet is connected to the compressed air source triplet inlet, the compressed air source triplet outlet is connected to the second ball valve inlet, and the second ball valve outlet is connected to the first pneumatic control component and the second pneumatic control component via pipelines.

7. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 6, characterized in that, The second pneumatic pipeline is equipped with a third ball valve. The air inlet of the third ball valve is connected to the air outlet of the first shut-off valve. The air outlet of the third ball valve is connected to the first pneumatic control component and the second pneumatic control component through pipelines.

8. The combustion station of the dual-pneumatic pipeline roasting furnace according to claim 6, characterized in that, The compressed air tank is equipped with a drain valve and an air inlet valve. The air inlet valve is connected to the compressed air source, and the drain valve is used to drain the compressed air tank.

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