Feeding system for furnace body

Abstract

The utility model provides a feeding system for a furnace body. The feeding system comprises a buffer tank, a blowing tank, a weighing assembly and a control device. The injection tank is connected with the buffer tank through a valve assembly, a first material level detection module is arranged on the injection tank, and the first material level detection module is used for generating a low material level signal when the injection tank is in a material shortage state. And the weighing assembly is arranged on the injection tank. And the control device is used for sending a first control instruction for switching the weighing assembly from the first weighing mode to the second weighing mode to the weighing assembly after receiving the low material level signal, and controlling the valve assembly to be opened so that the buffer tank can supply materials to the injection tank. According to the structure, the valve assembly can be controlled to be opened to supplement materials to the injection tank in time, so that the weighing assembly can be switched to a mode of detecting invalid weight information when supplementing the materials to the injection tank, the weighing accuracy of the weighing assembly is improved, and on the basis of guaranteeing the metering accuracy of the added materials, the weighing accuracy of the injection tank is improved. And stable, continuous and quantitative material conveying is achieved.

Description

Technical Field

[0001] This application relates to the technical field of material feeding, and in particular to a feeding system for a furnace body. Background Technology

[0002] When preparing titanium dioxide using the chlorination process, high-titanium slag, rutile, and petroleum coke are added to the chlorination furnace in a certain proportion, and chlorine gas is introduced into the chlorination furnace to allow the chlorination reaction to occur in a boiling state, thereby generating titanium tetrachloride.

[0003] Currently, the feeding method for chlorination furnaces involves allowing materials to fall vertically under gravity into a screw feeder, which then adds the material into the furnace. Operators need to control the feeding speed of the screw feeder based on the amount of material already in the furnace. However, the current feeding method lacks precise metering control, leading to inconsistent delivery volumes. This significantly impacts the stability of the reaction within the chlorination furnace and the quality of the finished product. Furthermore, without precise metering control, the feeder cannot achieve stable, continuous, and quantitative material delivery. Additionally, if the amount of material in the chlorination furnace is insufficient and not added in time, chlorine gas can easily leak out, posing a significant threat to the environment and the health of operators. Utility Model Content

[0004] To address the aforementioned technical problems in the prior art, this application provides a feeding system for a furnace body. This system can promptly detect the material level in the injection tank and, upon generating a low material level signal, promptly control the weighing component to switch to a second weighing mode and control the valve component to open to replenish the material in the injection tank. This allows the weighing component to switch to a mode that detects invalid weight information when replenishing the injection tank, thereby improving the weighing accuracy of the weighing component. Furthermore, it enables stable, continuous, and quantitative material delivery while ensuring the accuracy of the added material's metering.

[0005] This application provides a feeding system for a furnace body, comprising a buffer tank, a spray tank, a weighing component, and a control device. The buffer tank has an upper inlet connected to a hopper, and the buffer tank is used to receive material from the hopper. The spray tank's upper inlet is connected to the buffer tank's lower outlet via a valve assembly, and the spray tank's lower outlet is connected to a feeding device, which is used to convey material to the furnace body through a feeding pipe. The spray tank has a material shortage state (material level below a preset height) and a material full state (material level not below a preset height). The spray tank is equipped with a first material level detection module, which generates a low material level signal when the spray tank is in a material shortage state. The weighing component is located on the spray tank and has a first weighing mode and a second weighing mode. The weighing component is used to detect the effective weight information of the spray tank in the first weighing mode and to detect the invalid weight information of the spray tank in the second weighing mode. The control device is electrically connected to the first material level detection module, the valve assembly, and the weighing assembly, respectively. After receiving the low material level signal generated by the first material level detection module, the control device sends a first control command to the weighing assembly to switch it from the first weighing mode to the second weighing mode, and controls the valve assembly to open so that the buffer tank can supply material to the blow tank.

[0006] In some embodiments, the feeding device rotatably conveys material to the furnace body, and the weighing component is electrically connected to the feeding device for controlling the feeding device to operate with variable parameters in a first weighing mode and controlling the feeding device to operate with fixed parameters in a second weighing mode.

[0007] In some embodiments, the feeding system further includes a balancing valve, which is connected to the buffer tank and the spray tank respectively. The control device is electrically connected to the balancing valve. The control device is at least used to send a second control command to the balancing valve to open it before the material is fed from the lower outlet of the buffer tank to the upper inlet of the spray tank, so as to balance the air pressure in the buffer tank and the spray tank.

[0008] In some embodiments, the feeding system further includes an exhaust valve connected to the buffer tank, and a control device electrically connected to the exhaust valve. The control device is at least configured to send a third control command to the exhaust valve to open it before the hopper feeds material to the upper feed inlet of the buffer tank, so as to reduce the air pressure in the buffer tank.

[0009] In some embodiments, the feeding system further includes a first protective gas path and a second protective gas path arranged in parallel. The feeding pipe is connected to the furnace body through the first protective gas path and the second protective gas path, respectively. At least one of the first protective gas path and the second protective gas path is used to deliver protective gas to the furnace body.

[0010] In some embodiments, the feeding system further includes a gas storage tank containing protective gas, the gas storage tank being connected to the first protective gas path and the second protective gas path respectively, for supplying protective gas to the first protective gas path and the second protective gas path.

[0011] In some embodiments, the feeding system further includes a buffer pressure valve connected to the buffer tank, and the control device is electrically connected to the buffer pressure valve. The control device is at least configured to send a fourth control command to the buffer pressure valve to open before sending a second control command to the balance valve to open it, and to send a fifth control command to the buffer pressure valve to close it after the pressure in the buffer tank reaches a first preset pressure.

[0012] In some embodiments, the feeding system further includes a jet pressurization valve connected to the jet canister, and the control device is electrically connected to the jet pressurization valve. The control device is at least used to send a sixth control command to the jet pressurization valve to open it before the lower outlet of the jet canister delivers material to the feeding device, so as to increase the air pressure in the jet canister.

[0013] In some embodiments, the feeding system further includes a buffer fluidizing valve in communication with the buffer tank, and the control device is electrically connected to the buffer fluidizing valve. The control device is configured to send a seventh control command to the buffer fluidizing valve to open it after sending a second control command to the balancing valve to open it.

[0014] In some embodiments, the feeding system further includes a jet fluidizing valve, which is connected to the jet tank, and the control device is electrically connected to the jet fluidizing valve. The control device is at least used to send an eighth control command to the jet fluidizing valve to open it after the feeding device is turned on.

[0015] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows: This application can detect the material level in the injection tank in a timely manner through the first material level detection module on the injection tank. After receiving the low material level signal generated by the first material level detection module, the control device can promptly control the weighing component to switch to the second weighing mode and control the valve component to open to replenish the material in the injection tank in a timely manner. This allows the weighing component to switch to the mode of detecting invalid weight information when replenishing the material in the injection tank, thereby improving the weighing accuracy of the weighing component and avoiding the problem of incorrect weighing by the weighing component when replenishing the material in the injection tank. This achieves the purpose of accurately weighing the weight of the material in the injection tank. Furthermore, it can achieve stable, continuous and quantitative material delivery while ensuring the accuracy of the added material measurement. This improves the stability of material supply to the feeding equipment through the injection tank and material delivery to the furnace body by the feeding equipment. It avoids the problem of gas overflow in the furnace body due to insufficient material dosage in the furnace body and can ensure stable continuous material supply to the furnace body without stopping the machine for material replenishment. The above structure has a high degree of automation and can achieve automated control through the control device without manual supervision of the feeding. Attached Figure Description

[0016] In drawings that are not necessarily drawn to scale, the same reference numerals may describe similar parts in different views. The drawings generally illustrate various embodiments by way of example rather than limitation and are used, together with the description and claims, to illustrate the disclosed embodiments. Where appropriate, the same reference numerals are used in all drawings to refer to the same or similar parts. Such embodiments are illustrative and not intended to be exhaustive or exclusive embodiments of the apparatus or method.

[0017] Figure 1 This is a simplified structural diagram of the feeding system for the furnace body according to an embodiment of this application.

[0018] The components indicated by the reference numerals in the figure:

[0019] 1. Buffer tank; 2. Pulsation tank; 3. Weighing assembly; 4. Hopper; 5. Feeding equipment; 6. Feeding pipeline; 7. Furnace body; 8. Balancing valve; 9. Exhaust valve; 10. First protective air circuit; 11. Second protective air circuit; 12. Gas storage tank; 13. Buffer pressurizing valve; 14. Pulsation pressurizing valve; 15. Buffer fluidizing valve; 16. Pulsation fluidizing valve; 17. Isolation valve; 18. Buffer inlet valve; 19. Buffer outlet valve; 20. First flexible connector; 21. Second flexible connector; 22. Pulsation inlet valve; 23. Pulsation outlet valve; 24. Balancing air circuit; 25. Exhaust air circuit; 26. First switching valve; 27. Second switching valve; 28. Third flexible connector; 29. ​​First high-temperature valve; 30. Second high-temperature valve; 31. First feed inlet; 32. Second feed inlet; 33. Conveying valve. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this application, the application will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiments of this application will be further described in detail below with reference to the accompanying drawings and specific examples, but these are not intended to limit the scope of this application.

[0021] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0022] In this application, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0023] All terms used in this application (including technical or scientific terms) have the same meaning as understood by one of ordinary skill in the art to which this application pertains, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not as having an idealized or highly formalized meaning, unless expressly defined herein.

[0024] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0025] This application provides a feeding system for a furnace body. For example... Figure 1As shown, the feeding system for the furnace body includes a buffer tank 1, a jet tank 2, a weighing assembly 3, and a control device (not shown in the figure). The upper inlet of the buffer tank 1 is connected to a hopper 4, and the buffer tank 1 is used to receive material from the hopper 4. The upper inlet of the jet tank 2 is connected to the lower outlet of the buffer tank 1 via a valve assembly. The lower outlet of the jet tank 2 is connected to a feeding device 5, which is used to convey material to the furnace body 7 through a feeding pipe 6. The jet tank 2 has a material shortage state (material level below a preset height) and a material full state (material level not below a preset height). The jet tank 2 is equipped with a first material level detection module, which generates a low material level signal when the jet tank 2 is in a material shortage state. The weighing assembly 3 is located on the jet tank 2 and has a first weighing mode and a second weighing mode. The weighing assembly 3 is used to detect the effective weight information of the jet tank 2 in the first weighing mode and to detect the invalid weight information of the jet tank 2 in the second weighing mode. The control device is electrically connected to the first material level detection module, the valve assembly, and the weighing assembly 3, respectively. After receiving the low material level signal generated by the first material level detection module, the control device sends a first control command to the weighing assembly 3 to switch it from the first weighing mode to the second weighing mode, and controls the valve assembly to open so that the buffer tank 1 can supply material to the injection tank 2. The furnace body 7 can be understood as a chlorination furnace.

[0026] When the weighing component 3 is in the first weighing mode and the second weighing mode, the lower discharge port of the injection tank 2 continuously feeds materials to the furnace body 7 through the feeding device 5. Even if the weighing mode of the weighing component 3 is switched, it will not affect the feeding of materials to the furnace body 7.

[0027] The aforementioned hopper 4 can be positioned above the buffer tank 1. Material in the hopper 4 can fall into the buffer tank 1 by gravity. An isolation valve 17 is provided at the outlet of the hopper 4. The user can control the quantity or speed of material falling from the hopper 4 to the feeder by controlling the opening or closing of the isolation valve 17 to meet different usage conditions. Preferably, the isolation valve 17 is a slide gate valve.

[0028] The buffer tank 1 near its lower discharge port and the blow-jet tank 2 near its lower discharge port may each have an inclined wall to guide the material to flow smoothly to the bottom of the buffer tank 1 and the blow-jet tank 2.

[0029] A first flexible connector 20 can be provided between the aforementioned silo 4 and the buffer tank 1. The first flexible connector 20 can prevent the vibrations generated by the silo 4 and the buffer tank 1 from affecting each other, effectively ensuring the firmness and reliability of the connection between the silo 4 and the buffer tank 1.

[0030] A buffer inlet valve 18 can be provided between the upper feed port of the buffer tank 1 and the first flexible connector 20, and a buffer outlet valve 19 can be provided at the lower feed port of the buffer tank 1 to control the entry and exit of materials.

[0031] A blow-inlet valve 22 can be installed at the upper feed port of the aforementioned blow-in tank 2. A second flexible connector 21 can be installed between the buffer outlet valve 19 and the blow-inlet valve 22. The second flexible connector 21 can prevent the vibrations generated by the buffer tank 1 and the blow-in tank 2 from affecting each other, effectively ensuring the firmness and reliability of the connection between the buffer tank 1 and the blow-in tank 2, and also ensuring the accuracy of the weighing by the weighing component 3.

[0032] The aforementioned weighing component 3 may include a load cell and a loss-in-weight scale. The load cell is used to detect the weight of the injection tank 2 in real time, and the loss-in-weight scale is used to switch the weighing component 3 between a first weighing mode and a second weighing mode. The loss-in-weight scale is electrically connected to the load cell and is used to determine the flow rate of the injection tank 2 based on the effective weight information detected by the load cell.

[0033] The valve assembly described above may include a buffer outlet valve 19 and a jet inlet valve 22. By controlling the opening of the buffer outlet valve 19 and the jet inlet valve 22, the buffer tank 1 can supply material to the jet tank 2.

[0034] In the first weighing mode described above, the pressure inside the injection tank 2 is in a stable high-pressure state to stably supply material to the furnace body 7. At this time, the pressure inside the injection tank 2 will not affect the weight detected by the weighing component 3, and the effective weight information of the injection tank 2 can be detected.

[0035] The low material level signal generated by the first material level detection module indicates that the material level in the blow tank 2 is too low. At this time, it is necessary to supply material to the blow tank 2 in a timely manner through the buffer tank 1. It is known that when the buffer tank 1 supplies material to the blow tank 2, the buffer tank 1 is connected to the blow tank 2, and the air pressure in the blow tank 2 will be affected by the buffer tank 1. This causes the weighing component 3 on the blow tank 2 to be unable to effectively detect the weight of the blow tank 2. That is, the weight of the blow tank 2 detected by the weighing component 3 at this time is invalid weight information. Therefore, controlling the weighing component 3 to switch from the first weighing mode to the second weighing mode can adjust the weighing component 3 to the weighing mode that matches the current scenario in a timely manner, so as to avoid the problem of incorrect weighing by the weighing component 3 when replenishing material to the blow tank 2.

[0036] The buffer tank 1 is equipped with a second material level detection module, which is used to detect the material level in the buffer tank 1 and generate high material level information when the material level in the buffer tank 1 reaches a preset height.

[0037] Downstream of the aforementioned feeding device 5, a jet outlet valve 23 can be installed. When the jet outlet valve 23 is opened, the feeding pipe 6 can be in an open state so that the material can be transported from the jet tank 2 to the furnace body 7.

[0038] In the above embodiments, the buffer tank 1 and the spray tank 2 adopt a dual-tank series design. After the feeding system is started, the spray tank 2 can continuously and stably spray and convey, and with the cooperation of the feeding device 5, the feeding device 5 can accurately control the feeding amount.

[0039] The aforementioned control device can be electrically connected to the isolation valve 17, the buffer inlet valve 18, the buffer outlet valve 19, the jet inlet valve 22, and the jet outlet valve 23 respectively, so as to control the opening and closing of the valves respectively through electrical signals.

[0040] This application utilizes a first material level detection module on the injection tank 2 to promptly detect the material level within the injection tank 2. Upon receiving a low material level signal generated by the first material level detection module, the control device promptly controls the weighing component 3 to switch to a second weighing mode and controls the valve assembly to open to replenish the material in the injection tank 2. This allows the weighing component 3 to switch to a mode that detects invalid weight information when replenishing the injection tank 2, thereby improving the weighing accuracy of the weighing component 3 and preventing erroneous weighing during material replenishment. This achieves the goal of accurately weighing the material in the injection tank 2, and on the basis of ensuring the accuracy of the added material measurement, it can achieve stable, continuous and quantitative material delivery, improve the stability of material supply from the injection tank 2 to the feeding device 5 and material delivery from the feeding device 5 to the furnace body 7, avoid the problem of gas overflow in the furnace body 7 due to insufficient material dosage, and ensure stable continuous material supply to the furnace body 7 without the need for machine shutdown and material replenishment. The above structure has a high degree of automation and can be automatically controlled by the control device without the need for manual supervision of material feeding.

[0041] In some embodiments, such as Figure 1 As shown, the feeding device 5 rotatably conveys materials to the furnace body 7. The weighing component 3 is electrically connected to the feeding device 5 and is used to control the feeding device 5 to operate with variable parameters in the first weighing mode and to control the feeding device 5 to operate with fixed parameters in the second weighing mode.

[0042] In this way, the operation of the feeding device 5 can be precisely controlled by the weighing component 3, so that the feeding device 5 can operate with parameters that match the weighing mode of the weighing component 3. Furthermore, the feeding device 5 can remain in operation without stopping the feeding of materials to the furnace body 7 when the valve component is opened to allow the buffer tank 1 to supply material to the blowing tank 2.

[0043] The aforementioned feeding device 5 operating with variable parameters can be understood as the first weighing mode. The weighing component 3 can adjust the operating parameters of the feeding device 5 according to the actual feed flow rate of the blowing tank 2 to the furnace body 7 and the first set flow rate. At this time, the operating parameters of the feeding device 5 are adjusted in real time, and the weighing component 3 can dynamically adjust the operating parameters of the feeding device 5.

[0044] The above-mentioned feeding device 5 operating with fixed parameters can be understood as the second weighing mode. Since the weighing component 3 detects invalid weight information of the injection tank 2, if the operating parameters of the feeding device 5 are controlled according to the weighing result of the weighing component 3, the feeding device 5 may not be able to work properly, that is, the feeding device 5 cannot achieve continuous feeding. Therefore, controlling the feeding device 5 to operate with fixed parameters in the second weighing mode can ensure that the feeding device 5 stably conveys materials to the furnace body 7 and ensures the continuity of material conveying.

[0045] The aforementioned feeding device 5 may include a frequency converter, which can adjust the rotational speed of the feeding device 5. The aforementioned loss-in-weight scale can be electrically connected to the frequency converter, and the loss-in-weight scale can control the operating parameters of the feeding device 5 through the frequency converter, that is, operate with variable parameters or with fixed parameters.

[0046] The aforementioned feeding device 5 can transport materials into the furnace body 7 by rotation. Specifically, a rotary feeding device 5 is adopted, and a high-hardness blade substrate can be selected. Tungsten carbide is sprayed on the surface of the blade substrate to effectively improve the wear resistance of the feeding device 5.

[0047] The aforementioned feeding device 5 may have a sealed air path to prevent the pressure inside the spray tank 2 from affecting the operation of the feeding device 5. Specifically, it prevents material from entering between the bearing structure and the rotating structure of the feeding device 5, causing material jamming. This sealed air path remains open and is only closed when the machine stops. The feeding device 5 may also have a feeding air path, which is isolated from the sealed air path to ensure uninterrupted feeding. The sealed air path protects components of the feeding device 5, such as the bearing structure and the rotating structure.

[0048] In some embodiments, such as Figure 1 As shown, the feeding system also includes a balance valve 8, which is connected to the buffer tank 1 and the spray tank 2 respectively. The control device is electrically connected to the balance valve 8. The control device is at least used to send a second control command to the balance valve 8 to open it before the material is fed from the lower outlet of the buffer tank 1 to the upper inlet of the spray tank 2, so as to balance the air pressure in the buffer tank 1 and the spray tank 2.

[0049] In the above embodiment, the balancing valve 8 can balance the pressure in the buffer tank 1 with the pressure in the injection tank 2, preventing the material in the buffer tank 1 from failing to fall smoothly into the injection tank 2 due to the pressure in the injection tank 2 being greater than that in the buffer tank 1, thus effectively ensuring the practicality of the feeding system. Simultaneously, it also prevents the backflow of gas from the furnace body 7 into the feeding system due to pressure loss in the injection tank 2, effectively ensuring the reliability of the feeding system.

[0050] The buffer tank 1 and the injection tank 2 can be connected by a balancing air passage 24, on which the balancing valve 8 can be installed. The balancing valve 8 can have a delayed opening and closing function. Before the material is conveyed from the lower outlet of the buffer tank 1 to the upper inlet of the injection tank 2, the control device sends a second control command to the balancing valve 8 to open the valve, so that the pressure between the buffer tank 1 and the injection tank 2 is balanced. This allows the material to fall smoothly from the buffer tank 1 into the injection tank 2 under the action of gravity, and also avoids the situation where the injection tank 2 loses pressure during the material conveying process, which would cause the gas in the furnace body 7 to flow back into the feeding system.

[0051] In some embodiments, such as Figure 1 As shown, the feeding system also includes an exhaust valve 9, which is connected to the buffer tank 1. The control device is electrically connected to the exhaust valve 9. The control device is used at least to send a third control command to the exhaust valve 9 to open it before the material is fed from the hopper 4 to the upper feed port of the buffer tank 1, so as to reduce the air pressure in the buffer tank 1.

[0052] In the above embodiment, the exhaust valve 9 can quickly reduce the pressure of the residual gas in the buffer tank 1 so that the pressure in the buffer tank 1 is balanced with the pressure in the silo 4, thereby ensuring that the material can smoothly enter the buffer tank 1 from the silo 4.

[0053] The aforementioned exhaust valve 9 can be connected to the buffer tank 1 via the exhaust air passage 25. When there is residual gas in the buffer tank 1, the pressure of the residual gas is unfavorable for the material to enter the buffer tank 1. That is, if the pressure in the buffer tank 1 is too high, the material in the hopper 4 will be difficult to be transported into the buffer tank 1. Before the hopper 4 conveys material to the upper feed port of the buffer tank 1, the pressure in the buffer tank 1 can be reduced to the same or similar pressure as that in the hopper 4 by controlling the aforementioned exhaust valve 9, so that the material in the hopper 4 can smoothly and quickly enter the buffer tank 1.

[0054] In some embodiments, such as Figure 1 As shown, the feeding system also includes a first protective air passage 10 and a second protective air passage 11 arranged in parallel. The feeding pipe 6 is connected to the furnace body 7 through the first protective air passage 10 and the second protective air passage 11 respectively. At least one of the first protective air passage 10 and the second protective air passage 11 is used to deliver protective gas to the furnace body 7.

[0055] In the above embodiments, the first protective gas path 10 and the second protective gas path 11 can be used as backups for each other. When one of the first protective gas path 10 and the second protective gas path 11 fails or becomes blocked, the other protective gas path can still deliver protective gas into the furnace body 7, thereby preventing the gas in the furnace body 7 from flowing back into the injection tank 2, buffer tank 1 and other equipment, effectively improving the safety and reliability of the feeding system.

[0056] The furnace body 7 described above can have multiple feed inlets, such as Figure 1 As shown, the furnace body 7 has two feed inlets, namely the first feed inlet 31 and the second feed inlet 32, and the feeding pipe 6 can be connected to the two feed inlets respectively.

[0057] The upstream of the two feed inlets can be equipped with a first switching valve 26 and a second switching valve 27, respectively. By controlling the opening and closing of the first switching valve 26 and the second switching valve 27, the connection and disconnection between the furnace body 7 and the feed pipe 6 can be realized.

[0058] A third flexible connector 28 can be provided between the aforementioned injection outlet valve 23 and the first switching valve 26 and the second switching valve 27 to prevent the furnace body 7 and the injection tank 2 from affecting each other during operation. A guide tube can be provided inside the aforementioned third flexible connector 28 to ensure that the material can pass smoothly through the third flexible connector 28 and be transported into the furnace body 7.

[0059] A first high-temperature valve 29 can be installed between the first switching valve 26 and the first feed inlet 31 of the furnace body 7, and a second high-temperature valve 30 can be installed between the second switching valve 27 and the second feed inlet 32 ​​of the furnace body 7. By controlling the opening and closing of the first high-temperature valve 29 and the second high-temperature valve 30, the high-temperature gas in the furnace body 7 can be effectively prevented from damaging the feeding pipe 6 and other equipment upstream of the feeding pipe 6 (such as the injection tank 2, feeding equipment 5, etc.).

[0060] The first protective gas path 10 can be set between the first high temperature valve 29 and the first feed port 31 of the furnace body 7, and the second protective gas path 11 can be set between the second high temperature valve 30 and the second feed port 32 of the furnace body 7. Protective gas can be continuously supplied into the furnace body 7 through the first protective gas path 10 and the second protective gas path 11. This not only allows the material to continue moving into the furnace body 7 when pushed by the protective gas, but also prevents the high temperature gas in the furnace body 7 from flowing back into the feeding pipe 6.

[0061] The protective gas can be nitrogen, inert gas, etc., to avoid chemical reaction between the protective gas and the high temperature inside the furnace body 7.

[0062] In some embodiments, such as Figure 1As shown, the feeding system also includes a gas storage tank 12 that stores protective gas. The gas storage tank 12 is connected to the first protective gas path 10 and the second protective gas path 11, respectively, and is used to deliver protective gas to the first protective gas path 10 and the second protective gas path 11.

[0063] In the above embodiments, the gas storage tank 12 can continuously supply protective gas to the furnace body 7 through the first protective gas passage 10 and the second protective gas passage 11, which further improves the safety and reliability of the feeding system.

[0064] The aforementioned gas storage tank 12 may contain compressed protective gas, and a valve instrument controller may be installed on the gas storage tank 12 to monitor information such as gas capacity and gas pressure inside the gas storage tank 12.

[0065] The aforementioned gas storage tank 12 can be connected to the feeding pipeline 6, and a conveying valve 33 can be installed between the gas storage tank 12 and the feeding pipeline 6 so that the protective gas in the gas storage tank 12 can be conveyed to the feeding pipeline 6.

[0066] In some embodiments, such as Figure 1 As shown, the feeding system also includes a buffer pressure valve 13, which is connected to the buffer tank 1. The control device is electrically connected to the buffer pressure valve 13. The control device is used at least to send a fourth control command to the buffer pressure valve 13 to open it before sending a second control command to the balance valve 8 to open it, and to send a fifth control command to the buffer pressure valve 13 to close it after the pressure in the buffer tank 1 reaches the first preset pressure.

[0067] In the above embodiment, the buffer pressure valve 13 can increase the pressure to the buffer tank 1 before the balance valve 8 is opened, so as to ensure that the pressure in the buffer tank 1 is close to the pressure in the spray tank 2, thereby smoothly conveying the material in the buffer tank 1 to the spray tank 2, effectively ensuring the stability of the feeding system operation.

[0068] When the injection tank 2 continuously conveys material to the furnace body 7, the gas inside the injection tank 2 needs to have a certain pressure to ensure that the material can be continuously transported to the furnace body 7. However, when the pressure inside the injection tank 2 is greater than the pressure inside the buffer tank 1, the material cannot be smoothly conveyed from the buffer tank 1 to the injection tank 2. At this time, the buffer pressurization valve 13 can be controlled to open so that the pressure inside the buffer tank 1 reaches the first preset pressure, so that the material in the buffer tank 1 can be smoothly conveyed to the injection tank 2.

[0069] The aforementioned first preset pressure can be the same as or similar to the pressure inside the spray tank 2.

[0070] The aforementioned buffer pressure valve 13 can increase the pressure to the buffer tank 1 before the balance valve 8 is opened, so as to avoid a large pressure difference between the buffer tank 1 and the spray tank 2, so that the pressure in the spray tank 2 can flow quickly to the buffer tank 1 through the balance valve 8, resulting in a large pressure loss in the spray tank 2 and affecting the material conveying.

[0071] In some embodiments, such as Figure 1 As shown, the feeding system also includes a jet pressurization valve 14, which is connected to the jet tank 2. The control device is electrically connected to the jet pressurization valve 14. The control device is used at least to send a sixth control command to the jet pressurization valve 14 to open it before the material is conveyed to the feeding device 5 from the lower outlet of the jet tank 2, so as to increase the air pressure in the jet tank 2.

[0072] In the above embodiment, before conveying material to the feeding device 5, the jet pressurizing valve 14 can continuously increase the pressure in the jet can 2 to apply sufficient pushing force to the material in the jet can 2, thereby completing the conveying of material from the jet can 2 to the feeding device 5, further improving the stability and practicality of the feeding system.

[0073] In some embodiments, such as Figure 1 As shown, the feeding system also includes a buffer fluidizing valve 15, which is connected to the buffer tank 1. The control device is electrically connected to the buffer fluidizing valve 15. The control device is at least used to send a seventh control command to the buffer fluidizing valve 15 to open it after sending a second control command to the balance valve 8 to open it.

[0074] In the above embodiment, protective gas can be delivered into the buffer tank 1 through the buffer fluidization valve 15 to improve the fluidity of the material in the buffer tank 1, thereby improving the fluidization state and motion characteristics of the material and further improving the efficiency of material conveying.

[0075] The aforementioned buffer fluidization valve 15 can be connected to the gas storage tank 12. During the process of conveying the material in the buffer tank 1 to the spray tank 2, the buffer fluidization valve 15 can be opened so that the protective gas in the gas storage tank 12 can be conveyed to the buffer tank 1, thereby increasing the speed of material conveying to the spray tank 2.

[0076] In some embodiments, such as Figure 1 As shown, the feeding system also includes a jet fluidizing valve 16, which is connected to the jet tank 2. The control device is electrically connected to the jet fluidizing valve 16. The control device is used at least to send an eighth control command to the jet fluidizing valve 16 to open it after the feeding device 5 is turned on.

[0077] In the above embodiment, protective gas can be delivered into the injection tank 2 through the injection fluidization valve 16 to improve the fluidity of the material in the injection tank 2, thereby improving the fluidization state and motion characteristics of the material and further improving the efficiency of material conveying.

[0078] The aforementioned injection fluidization valve 16 can be connected to the gas storage tank 12. During the process of conveying the material in the injection tank 2 to the feeding device 5, the injection fluidization valve 16 can be opened so that the protective gas in the gas storage tank 12 can be conveyed to the injection tank 2, thereby increasing the speed of material conveying to the furnace body 7.

[0079] It should be noted that all valves provided in this application can be electrically connected to a control device to control the opening and closing of all valves via the control device.

[0080] The following is a detailed explanation of the continuous feeding process of the feeding system: First, before feeding the system, a self-inspection step is performed. After the self-inspection step is running normally, it is determined whether the injection tank 2 is in a state of sufficient material or insufficient material. If the injection tank 2 is in a state of sufficient material, the pressurization step of the injection tank 2 is executed, and after pressurization, material is normally injected into the furnace body 7 through the injection tank 2. If the injection tank 2 is in a state of insufficient material, the feeding step of the buffer tank 1, the pressurization step of the buffer tank 1, and the feeding step of the injection tank 2 are executed in sequence, and after feeding, material is normally injected into the furnace body 7 through the injection tank 2.

[0081] The feeding steps of the buffer tank 1 specifically include: controlling the weighing component 3 to be in the second weighing mode to detect invalid weight information of the blow-up tank 2, and opening the exhaust valve 9, buffer inlet valve 18 and isolation valve 17 on the buffer tank 1 in sequence, and closing the isolation valve 17 and buffer inlet valve 18 in sequence after the material level in the buffer tank 1 reaches the preset material level, thereby completing the feeding of the buffer tank 1.

[0082] The pressurization steps of the buffer tank 1 specifically include: controlling the weighing component 3 to be in the second weighing mode to detect invalid weight information of the blow-up tank 2, and sequentially closing the exhaust valve 9, the buffer inlet valve 18 and the buffer outlet valve 19 on the buffer tank 1, and opening the buffer pressurization valve 13. After the pressure in the buffer tank 1 reaches the first preset pressure, the buffer pressurization valve 13 is closed, thereby completing the pressurization of the buffer tank 1.

[0083] The above-mentioned feeding steps for the blow tank 2 specifically include: controlling the weighing component 3 to be in the second weighing mode to detect invalid weight information of the blow tank 2, and sequentially opening the balance valve 8, the blow inlet valve 22, the buffer outlet valve 19, and the buffer fluidization valve 15 to empty the material in the buffer tank 1, and after emptying the buffer tank 1, sequentially closing the buffer outlet valve 19, the blow inlet valve 22, and the balance valve 8 to complete the feeding of the blow tank 2.

[0084] The pressurization steps of the above-mentioned blow-up can 2 specifically include: controlling the weighing component 3 to be in the second weighing mode to detect invalid weight information of the blow-up can 2, and sequentially closing the blow-up inlet valve 22, the balance valve 8 and the blow-up outlet valve 23, and then opening the delivery valve 33. After the pressure in the blow-up can 2 reaches the second preset pressure, the blow-up pressurization valve 14 is closed, thereby completing the pressurization of the blow-up can 2.

[0085] The above-mentioned method of normally spraying materials into the furnace body 7 through the spray tank 2 specifically includes: sequentially opening the spray outlet valve 23, the feeding device 5, the spray fluidization valve 16 and the conveying valve 33. At this time, the weighing component 3 is in the first weighing mode to detect the effective weight information of the spray tank 2, thereby completing the normal spraying of materials into the furnace body 7.

[0086] Furthermore, although exemplary embodiments have been described herein, their scope includes any and all embodiments based on this application that have equivalent elements, modifications, omissions, combinations (e.g., schemes involving intersections of various embodiments), adaptations, or alterations. Elements in the claims will be interpreted broadly based on the language used in the claims and are not limited to the examples described in this specification or during the implementation of this application, and such examples will be interpreted as non-exclusive.

[0087] The above description is intended to be illustrative and not restrictive. For example, the above examples (or one or more of them) can be used in combination with each other. Other embodiments may be used by those skilled in the art upon reading the above description. Furthermore, in the above detailed description, various features may be grouped together to simplify the application. This should not be construed as an intention that a disclosed feature not claimed is necessary for any claim. Rather, the subject matter of the application may be less than all the features of a particular disclosed embodiment. Thus, the claims are incorporated herein by reference as examples or embodiments, wherein each claim is an independent, separate embodiment, and these embodiments are contemplated as being combined with each other in various combinations or arrangements. The scope of this application should be determined by reference to the appended claims and the full scope of their equivalents.

[0088] The above embodiments are merely exemplary embodiments of this application and are not intended to limit this application. The scope of protection of this application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within its substance and scope of protection, and such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this application.

Claims

1. A feeding system for a furnace body, characterized in that, include: A buffer tank, wherein the upper feed inlet of the buffer tank is connected to a hopper, and the buffer tank is used to hold materials from the hopper; The pulverized gas tank has its upper inlet connected to the lower outlet of the buffer tank via a valve assembly. The lower outlet of the pulverized gas tank is connected to a feeding device, which is used to convey materials to the furnace body through a feeding pipe. The pulverized gas tank has a material shortage state where the material level inside is lower than a preset height and a material full state where the material level inside is not lower than a preset height. The pulverized gas tank is equipped with a first material level detection module, which is used to generate a low material level signal when the pulverized gas tank is in the material shortage state. A weighing component is disposed on the blown can. The weighing component has a first weighing mode and a second weighing mode. The weighing component is used to detect the effective weight information of the blown can in the first weighing mode and to detect the invalid weight information of the blown can in the second weighing mode. The control device is electrically connected to the first material level detection module, the valve assembly, and the weighing assembly, respectively. The control device is used to receive a low material level signal generated by the first material level detection module, send a first control command to the weighing assembly to switch it from the first weighing mode to the second weighing mode, and control the valve assembly to open so that the buffer tank can supply material to the blow tank.

2. The feeding system for a furnace body according to claim 1, characterized in that, The feeding device rotatably conveys materials to the furnace body. The weighing component is electrically connected to the feeding device and is used to control the feeding device to operate with variable parameters in the first weighing mode and to control the feeding device to operate with fixed parameters in the second weighing mode.

3. The feeding system for a furnace body according to claim 1, characterized in that, The feeding system also includes a balancing valve, which is connected to the buffer tank and the spray tank respectively. The control device is electrically connected to the balancing valve. The control device is used at least to send a second control command to the balancing valve to open it before the material is fed from the lower outlet of the buffer tank to the upper inlet of the spray tank, so as to balance the air pressure in the buffer tank and the spray tank.

4. The feeding system for a furnace body according to claim 1, characterized in that, The feeding system also includes an exhaust valve, which is connected to the buffer tank. The control device is electrically connected to the exhaust valve. The control device is at least used to send a third control command to the exhaust valve to open it before the material is fed from the silo to the upper feed inlet of the buffer tank, so as to reduce the air pressure in the buffer tank.

5. The feeding system for a furnace body according to claim 1, characterized in that, The feeding system also includes a first protective gas path and a second protective gas path arranged in parallel. The feeding pipe is connected to the furnace body through the first protective gas path and the second protective gas path respectively. At least one of the first protective gas path and the second protective gas path is used to deliver protective gas to the furnace body.

6. The feeding system for a furnace body according to claim 5, characterized in that, The feeding system also includes a gas storage tank containing protective gas, which is connected to the first protective gas path and the second protective gas path respectively, and is used to supply protective gas to the first protective gas path and the second protective gas path.

7. The feeding system for a furnace body according to claim 3, characterized in that, The feeding system also includes a buffer pressurization valve, which is connected to the buffer tank. The control device is electrically connected to the buffer pressurization valve. The control device is at least used to send a fourth control command to the buffer pressurization valve to open it before sending a second control command to the balance valve to open it, and to send a fifth control command to the buffer pressurization valve to close it after the pressure in the buffer tank reaches a first preset pressure.

8. The feeding system for a furnace body according to claim 1, characterized in that, The feeding system also includes a jet pressurization valve, which is connected to the jet canister. The control device is electrically connected to the jet pressurization valve. The control device is at least used to send a sixth control command to the jet pressurization valve to open it before the material is conveyed from the lower outlet of the jet canister to the feeding equipment, so as to increase the air pressure in the jet canister.

9. The feeding system for a furnace body according to claim 3, characterized in that, The feeding system also includes a buffer fluidizing valve, which is connected to the buffer tank. The control device is electrically connected to the buffer fluidizing valve, and the control device is at least used to send a seventh control command to the buffer fluidizing valve to open it after sending a second control command to the balance valve to open it.

10. The feeding system for a furnace body according to claim 3, characterized in that, The feeding system also includes a jet fluidizing valve, which is connected to the jet tank. The control device is electrically connected to the jet fluidizing valve. The control device is used at least to send an eighth control command to the jet fluidizing valve to open it after the feeding equipment is turned on.

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