Feeding system for furnace body

Abstract

The invention 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 particularly to a feeding system for a furnace body. Background Art

[0002] When titanium dioxide is prepared by the chlorination method, high-titanium slag, rutile and petroleum coke need to be added into the chlorination furnace in a certain proportion, and chlorine gas is introduced into the chlorination furnace to carry out a chlorination reaction under a boiling state, thereby generating titanium tetrachloride.

[0003] Currently, the feeding method of the chlorination furnace is to make the material vertically fall into the screw feeding device under the action of gravity, and the material is added into the chlorination furnace through the screw feeding device, and the operator needs to control the feeding speed of the screw feeding device according to the dosage of the material in the chlorination furnace. However, the current feeding method has inaccurate metering control of the added material, which easily causes the conveying dosage to be large or small, thus having a greater impact on the stability of the reaction in the chlorination furnace and the quality of the prepared product. And when the metering control of the added material is inaccurate, the feeder cannot achieve stable continuous and quantitative material conveying. Moreover, when the dosage of the material in the chlorination furnace is insufficient and feeding is not timely, it is easy to cause the overflow of chlorine gas in the chlorination furnace, which will have a greater impact on the environment and the health of the operator. Summary of the Invention

[0004] In view of the above technical problems existing in the prior art, this application provides a feeding system for a furnace body, which can timely detect the material level in the injection tank, and when a low material level signal is generated, timely control the weighing assembly to switch to the second weighing mode, and control the valve assembly to open to timely replenish the material for the injection tank, so that the weighing assembly can switch to the mode of detecting invalid weight information in the scenario of replenishing the material for the injection tank, thereby improving the weighing accuracy of the weighing assembly, and can achieve stable continuous and quantitative material conveying on the basis of ensuring the metering accuracy of the added material.

[0005] The present application provides a feeding system for a furnace body. The feeding system for the furnace body includes a buffer tank, a blowing tank, a weighing assembly, and a control device. The upper feeding port of the buffer tank is connected to a feed bin, and the buffer tank is used to receive materials from the feed bin. The upper feeding port of the blowing tank is connected to the lower discharging port of the buffer tank through a valve assembly, and the lower discharging port of the blowing tank is connected to a feeding device. The feeding device is used to convey materials to the furnace body through a feeding pipeline. The blowing tank has a material shortage state where the material level inside is lower than a preset height and a full material state where the material level inside is not lower than the preset height. A first material level detection module is provided on the blowing tank, and the first material level detection module is used to generate a low material level signal when the blowing tank is in the material shortage state. The weighing assembly is provided on the blowing tank. The weighing assembly has a first weighing mode and a second weighing mode, and the weighing assembly is used to detect the effective weight information of the blowing tank in the first weighing mode and the ineffective weight information of the blowing 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 is used to send a first control instruction 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 materials to the blowing tank.

[0006] In some embodiments, the feeding device conveys materials to the furnace body in a rotatable manner. The weighing assembly is electrically connected to the feeding device and is used to control the feeding device to work with variable parameters in the first weighing mode and to work with fixed parameters in the second weighing mode.

[0007] In some embodiments, the feeding system further includes a balance valve. The balance valve is respectively communicated with the buffer tank and the blowing tank. The control device is electrically connected to the balance valve. The control device is at least used to send a second control instruction to the balance valve to open it before the lower discharging port of the buffer tank conveys materials to the upper feeding port of the blowing tank, so as to balance the air pressure inside the buffer tank and the blowing tank.

[0008] In some embodiments, the feeding system further includes an exhaust valve. The exhaust valve is communicated with 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 instruction to the exhaust valve to open it before the feed bin conveys materials to the upper feeding port of the buffer tank, so as to reduce the air pressure inside 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 pipeline is respectively connected to the furnace body through the first protective gas path and the second protective gas path. At least one of the first protective gas path and the second protective gas path is used to convey protective gas to the furnace body.

[0010] In some embodiments, the feeding system further includes a gas storage tank storing protective gas, and the gas storage tank is respectively communicated with the first protective gas path and the second protective gas path for delivering the 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, the buffer pressure valve is communicated with the buffer tank, the control device is electrically connected to the buffer pressure valve, and the control device is at least configured to send a fourth control instruction to open the buffer pressure valve before sending a second control instruction to open the balance valve, and send a fifth control instruction to close the buffer pressure valve after the pressure in the buffer tank reaches a first preset pressure.

[0012] In some embodiments, the feeding system further includes a blow - by pressure valve, the blow - by pressure valve is communicated with the blow - by tank, the control device is electrically connected to the blow - by pressure valve, and the control device is at least configured to send a sixth control instruction to open the blow - by pressure valve to increase the air pressure in the blow - by tank before the lower discharge port of the blow - by tank delivers materials to the feeding device.

[0013] In some embodiments, the feeding system further includes a buffer fluidizing valve, the buffer fluidizing valve is communicated with the buffer tank, the control device is electrically connected to the buffer fluidizing valve, and the control device is at least configured to send a seventh control instruction to open the buffer fluidizing valve after sending a second control instruction to open the balance valve.

[0014] In some embodiments, the feeding system further includes a blow - by fluidizing valve, the blow - by fluidizing valve is communicated with the blow - by tank, the control device is electrically connected to the blow - by fluidizing valve, and the control device is at least configured to send an eighth control instruction to open the blow - by fluidizing valve after the feeding device is started.

[0015] Compared with the prior art, the beneficial effects of the embodiments of the present application are as follows: Through the first material level detection module on the injection tank, the material level in the injection tank can be detected in a timely manner. After receiving the low material level signal generated by the first material level detection module, the control device can timely control the weighing assembly to switch to the second weighing mode, and control the valve assembly to open to replenish the material in the injection tank in a timely manner, so that the weighing assembly can switch to the mode of detecting invalid weight information in the scenario of replenishing the material in the injection tank, thereby improving the weighing accuracy of the weighing assembly, avoiding the problem of incorrect weighing of the weighing assembly in the scenario of replenishing the material in the injection tank, achieving the purpose of accurately weighing the weight of the material in the injection tank, and being able to stably continuously and quantitatively convey the material on the basis of ensuring the metering accuracy of the added material, improving the stability of feeding the feeding equipment through the injection tank and the stability of the feeding equipment conveying the material to the furnace body, avoiding the problem of gas overflow in the furnace body due to insufficient material dosage in the furnace body, and being able to ensure stable continuous feeding to the furnace body without stopping for material replenishment. The above structure has a high degree of automation and can be automatically controlled through the control device without manual feeding. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 It is a structural schematic diagram of the feeding system for the furnace body according to the embodiments of the present application.

[0018] The components represented by the reference numerals in the drawings:

[0019] 1, buffer tank; 2, injection tank; 3, weighing assembly; 4, silo; 5, feeding equipment; 6, feeding pipeline; 7, furnace body; 8, balance valve; 9, exhaust valve; 10, first protective gas path; 11, second protective gas path; 12, gas storage tank; 13, buffer pressurizing valve; 14, injection pressurizing valve; 15, buffer fluidizing valve; 16, injection fluidizing valve; 17, isolation valve; 18, buffer inlet valve; 19, buffer outlet valve; 20, first flexible connector; 21, second flexible connector; 22, injection inlet valve; 23, injection outlet valve; 24, balance gas path; 25, exhaust gas path; 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 port; 32, second feed port; 33, conveying valve. Detailed Implementation Modes

[0020] To enable those skilled in the art to better understand the technical solutions of this application, the following will provide a detailed description of this application in conjunction with the accompanying drawings and specific implementation modes. The following further describes the embodiments of this application in detail with reference to the accompanying drawings and specific examples, but it does not limit this application.

[0021] The "first", "second" and similar terms used in this application do not indicate any order, quantity or importance, but are only used to distinguish different parts. Terms such as "including" or "comprising" mean that the elements before this term cover the elements listed after this term, and do not exclude the possibility of also covering other elements. "Upper", "lower", "left", "right", etc. are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

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

[0023] All terms used in this application (including technical terms or scientific terms) have the same meaning as understood by those of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in a general dictionary, for example, should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and should not be interpreted in an idealized or overly formal sense, unless specifically defined as such here.

[0024] For technologies, methods and devices known to those of ordinary skill in the relevant art, detailed discussion may not be made, but where appropriate, the said technologies, methods and devices should be regarded as part of the specification.

[0025] The embodiments of this application provide a feeding system for a furnace body. As Figure 1As shown in the figure, the feeding system for the furnace body includes a buffer tank 1, a blowing tank 2, a weighing assembly 3, and a control device (not shown in the figure). The upper feeding port of the buffer tank 1 is connected to a storage bin 4, and the buffer tank 1 is used to receive the materials from the storage bin 4. The upper feeding port of the blowing tank 2 is connected to the lower discharging port of the buffer tank 1 through a valve assembly, and the lower discharging port of the blowing tank 2 is connected to a feeding device 5. The feeding device 5 is used to convey materials to the furnace body 7 through a feeding pipeline 6. The blowing tank 2 has a material shortage state where the material level inside is lower than a preset height and a full material state where the material level inside is not lower than the preset height. A first material level detection module is provided on the blowing tank 2, and the first material level detection module is used to generate a low material level signal when the blowing tank 2 is in the material shortage state. The weighing assembly 3 is arranged on the blowing tank 2. The weighing assembly 3 has a first weighing mode and a second weighing mode, and the weighing assembly 3 is used to detect the effective weight information of the blowing tank 2 in the first weighing mode and the ineffective weight information of the blowing 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 is used to send a first control instruction to the weighing assembly 3 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 1 can supply materials to the blowing tank 2. Among them, the furnace body 7 can be understood as a chlorination furnace.

[0026] In the above-mentioned first weighing mode and second weighing mode of the weighing assembly 3, the lower discharging port of the blowing tank 2 continuously conveys materials to the furnace body 7 through the feeding device 5, and even if the weighing mode of the weighing assembly 3 is switched, it will not affect the conveyance of materials to the furnace body 7.

[0027] The above-mentioned storage bin 4 can be arranged above the buffer tank 1. The materials in the storage bin 4 can fall into the buffer tank 1 by gravity. A partition valve 17 is arranged at the outlet of the storage bin 4. Users can control the quantity or speed of the materials falling from the storage bin 4 to the feeder by controlling the opening or closing of the partition valve 17 to meet different usage situations. Among them, the above-mentioned partition valve 17 is preferably a slide valve.

[0028] One end of the above-mentioned buffer tank 1 close to its lower discharging port and one end of the blowing tank 2 close to its lower discharging port can respectively have inclined walls to guide the materials to smoothly flow to the bottoms of the buffer tank 1 and the blowing tank 2.

[0029] A first flexible connecting piece 20 can be arranged between the above-mentioned storage bin 4 and the buffer tank 1. The first flexible connecting piece 20 can avoid the mutual influence of the vibrations generated by the storage bin 4 and the buffer tank 1, and effectively ensure the firmness and reliability of the connection between the storage bin 4 and the buffer tank 1.

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

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

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

[0033] The above-mentioned valve assembly may include a buffer outlet valve 19 and a blow-in inlet valve 22. By controlling the opening of the buffer outlet valve 19 and the blow-in inlet valve 22, the buffer tank 1 can supply materials to the blow tank 2.

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

[0035] The low-level signal generated by the above-mentioned first level detection module indicates that the material level in the blow tank 2 is too low. At this time, the buffer tank 1 needs to supply materials to the blow tank 2 in a timely manner. It can be known that when the buffer tank 1 supplies materials to the blow tank 2, the buffer tank 1 is communicated with the blow tank 2, and the air pressure in the blow tank 2 will be affected by the buffer tank 1, resulting in the weighing assembly 3 on the blow tank 2 being unable to effectively detect the weight of the blow tank 2, that is, the weight of the blow tank 2 detected by the weighing assembly 3 at this time is invalid weight information. Therefore, controlling the weighing assembly 3 to switch from the first weighing mode to the second weighing mode can timely adjust the weighing assembly 3 to a weighing mode matching the current scenario, avoiding the problem of incorrect weighing by the weighing assembly 3 when replenishing materials for the blow tank 2.

[0036] A second level detection module is provided on the above-mentioned buffer tank 1. The second level detection module is used to detect the material level in the buffer tank 1 and generate a high-level signal when the material level in the buffer tank 1 reaches a preset height.

[0037] A blow-off outlet valve 23 can be provided downstream of the above-mentioned feeding device 5. When the blow-off outlet valve 23 is opened, the feeding pipeline 6 can be in an open state so that the material can be transported from the blow tank 2 into the furnace body 7.

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

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

[0040] In this application, the first level detection module on the blow tank 2 can timely detect the level in the blow tank 2. After receiving the low-level signal generated by the first level detection module, the control device can timely control the weighing assembly 3 to switch to the second weighing mode, and control the valve assembly to open to replenish the material for the blow tank 2 in time, so that the weighing assembly 3 can switch to the mode of detecting invalid weight information in the scenario of replenishing the material for the blow tank 2, thereby improving the weighing accuracy of the weighing assembly 3, avoiding the problem of incorrect weighing of the weighing assembly 3 in the scenario of replenishing the material for the blow tank 2, achieving the purpose of accurately weighing the material in the blow tank 2, and being able to stably, continuously and quantitatively transport the material on the basis of ensuring the metering accuracy of the added material, improving the stability of feeding the feeding device 5 through the blow tank 2 and the feeding device 5 feeding the material to the furnace body 7, avoiding the problem of gas overflow in the furnace body 7 due to insufficient material dosage in the furnace body 7, and being able to ensure stable continuous feeding to the furnace body 7 without stopping to replenish the material. The above structure has a high degree of automation and can achieve automatic control through the control device without manual feeding.

[0041] In some embodiments, as Figure 1 shown, the feeding device 5 transports the material to the furnace body 7 in a rotatable manner. The weighing assembly 3 is electrically connected to the feeding device 5 and is used to control the feeding device 5 to work with variable parameters in the first weighing mode and to control the feeding device 5 to work with fixed parameters in the second weighing mode.

[0042] In this way, the work of the feeding device 5 can be accurately controlled through the weighing assembly 3, so that the feeding device 5 can work with parameters matching the weighing mode of the weighing assembly 3. And, when the valve assembly is opened to enable the buffer tank 1 to supply material to the blow tank 2, the above-mentioned feeding device 5 remains in the working state without stopping transporting the material to the furnace body 7.

[0043] The above-mentioned feeding device 5 operating with variable parameters can be understood as follows: in the first weighing mode, the weighing assembly 3 can adjust the operating parameters of the feeding device 5 according to the actual feeding flow rate of the injection 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 assembly 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 follows: in the second weighing mode, since the weighing assembly 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 assembly 3 at this time, there may be a problem that the feeding device 5 cannot 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 at this time can ensure that the feeding device 5 stably conveys materials to the furnace body 7 and ensure the continuity of material conveyance.

[0045] The above-mentioned feeding device 5 can include a frequency converter, and the frequency converter can adjust the rotation speed of the feeding device 5. The above-mentioned 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 fixed parameters.

[0046] The above-mentioned feeding device 5 can convey materials into the furnace body 7 by rotating. Specifically, a rotary feeding device 5 is adopted, and a high-hardness blade matrix can be specifically selected, and tungsten carbide is sprayed on the surface of the blade matrix to effectively improve the wear resistance of the feeding device 5.

[0047] The above-mentioned feeding device 5 can have a sealed gas path to avoid the influence of the pressure in the injection tank 2 on the operation of the feeding device 5. Specifically, it is to prevent materials from entering between the bearing structure and the rotating structure of the feeding device 5, resulting in the problem of material jamming. The above-mentioned sealed gas path is always kept open and only closed during shutdown. The feeding device 5 can also have a feeding gas path, and the sealed gas path and the feeding gas path are isolated from each other so as not to delay the feeding of the feeding gas path. Among them, the sealed gas path is used to protect some structures included in the feeding device 5, such as the bearing structure and the rotating structure, etc.

[0048] In some embodiments, as Figure 1 shown, the feeding system further includes a balance valve 8. The balance valve 8 is respectively communicated with the buffer tank 1 and the injection tank 2, and the control device is electrically connected to the balance valve 8. The control device is at least used to send a second control instruction to make it open to the balance valve 8 before the lower discharge port of the buffer tank 1 conveys materials to the upper feed port of the injection tank 2, so as to balance the air pressure in the buffer tank 1 and the injection tank 2.

[0049] In the above embodiments, the pressure in the buffer tank 1 can be balanced with the pressure in the injection tank 2 through the balance valve 8, avoiding the situation where the material in the buffer tank 1 cannot smoothly fall into the injection tank 2 due to the pressure in the injection tank 2 being greater than the pressure in the buffer tank 1, effectively ensuring the practicability of the feeding system. At the same time, it also avoids the reverse flow of the gas in the furnace body 7 into the feeding system due to the loss of pressure 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 and communicated through a balance gas path 24, and the above-mentioned balance valve 8 can be arranged on the balance gas path 24. The balance valve 8 can have the function of delaying opening and closing. Before the lower discharge port of the buffer tank 1 conveys materials to the upper feed port of the injection tank 2, the control device sends a second control instruction to open the valve to the balance valve 8, so that the pressure between the buffer tank 1 and the injection tank 2 is balanced, and then the material can smoothly fall from the buffer tank 1 into the injection tank 2 under the action of gravity. Moreover, it also avoids the situation where the injection tank 2 loses pressure during the material transportation process, and then the gas in the furnace body 7 flows reversely into the feeding system.

[0051] In some embodiments, as Figure 1 shown, the feeding system further includes an exhaust valve 9. The exhaust valve 9 is connected and communicated with the buffer tank 1, and the control device is electrically connected to the exhaust valve 9. The control device is at least used to send a third control instruction to open it to the exhaust valve 9 before the silo 4 conveys materials 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 embodiments, the exhaust valve 9 can quickly reduce the air 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, and then it is ensured that the material can smoothly enter the buffer tank 1 from the silo 4.

[0053] The above-mentioned exhaust valve 9 can be connected and communicated with the buffer tank 1 through an exhaust gas path 25. When there is residual gas in the buffer tank 1, the pressure of the residual gas is not conducive to the material entering the buffer tank 1, that is, if the pressure in the buffer tank 1 is too high, the material in the silo 4 will be difficult to convey into the buffer tank 1. Before the silo 4 conveys materials to the upper feed port of the buffer tank 1, by controlling the above-mentioned exhaust valve 9, when the pressure in the buffer tank 1 is reduced to be the same as or close to the pressure in the silo 4, the material in the silo 4 can smoothly and quickly enter the buffer tank 1.

[0054] In some embodiments, as Figure 1 shown, the feeding system further includes a first protective gas path 10 and a second protective gas path 11 arranged in parallel. The feeding pipeline 6 is connected to the furnace body 7 through the first protective gas path 10 and the second protective gas path 11 respectively, and at least one of the first protective gas path 10 and the second protective gas path 11 is used to convey 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 backup for each other respectively. 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 supply the protective gas to the furnace body 7, thereby preventing the gas in the furnace body 7 from flowing back into equipment such as the injection tank 2 and the buffer tank 1, effectively improving the safety and reliability of the feeding system.

[0056] The above furnace body 7 can have multiple feed ports, such as Figure 1 As shown, the furnace body 7 has two feed ports, which are the first feed port 31 and the second feed port 32 respectively, and the feeding pipeline 6 can be connected to the two feed ports respectively.

[0057] The first switching valve 26 and the second switching valve 27 can be respectively arranged upstream of the above two feed ports. By respectively controlling the opening and closing of the first switching valve 26 and the second switching valve 27, the on-off between the furnace body 7 and the feeding pipeline 6 can be realized.

[0058] A third flexible connecting piece 28 can be arranged between the above 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 cylinder can be arranged inside the above third flexible connecting piece 28 to ensure that the material can smoothly pass through the third flexible connecting piece 28 and be conveyed into the furnace body 7.

[0059] A first high-temperature valve 29 can be arranged between the above first switching valve 26 and the first feed port 31 of the furnace body 7, and a second high-temperature valve 30 can be arranged between the second switching valve 27 and the second feed port 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 pipeline 6 and other equipment upstream of the feeding pipeline 6 (such as the injection tank 2, the feeding equipment 5, etc.).

[0060] The above first protective gas path 10 can be arranged 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 arranged between the second high-temperature valve 30 and the second feed port 32 of the furnace body 7. Through the first protective gas path 10 and the second protective gas path 11, the protective gas can be continuously supplied to the furnace body 7, which can not only enable the material to continue to move into the furnace body 7 when pushed by the protective gas, but also prevent the high-temperature gas in the furnace body 7 from flowing back into the feeding pipeline 6.

[0061] The above protective gas can be nitrogen, inert gas, etc. to prevent the protective gas from chemically reacting with the high temperature in the furnace body 7.

[0062] In some embodiments, such as Figure 1As shown, the feeding system further includes a gas storage tank 12 storing protective gas. The gas storage tank 12 is respectively communicated with the first protective gas path 10 and the second protective gas path 11, and is used to convey the protective gas to the first protective gas path 10 and the second protective gas path 11.

[0063] In the above embodiment, the gas storage tank 12 can continuously convey the protective gas into the furnace body 7 through the first protective gas path 10 and the second protective gas path 11, further improving the safety and reliability of the feeding system.

[0064] The above gas storage tank 12 can store compressed protective gas, and a valve instrument controller can be arranged on the gas storage tank 12 to monitor information such as the gas volume and gas pressure in the gas storage tank 12.

[0065] The above gas storage tank 12 can be communicated with the feeding pipeline 6, and a conveying valve 33 can be arranged 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, as Figure 1 shown, the feeding system further includes a buffer pressure valve 13. The buffer pressure valve 13 is communicated with the buffer tank 1, and the control device is electrically connected to the buffer pressure valve 13. The control device is at least used to send a fourth control instruction to the buffer pressure valve 13 to open it before sending a second control instruction to the balance valve 8 to open it, and send a fifth control instruction to the buffer pressure valve 13 to close it after the pressure in the buffer tank 1 reaches a first preset pressure.

[0067] In the above embodiment, the buffer pressure valve 13 can increase the pressure in the buffer tank 1 before the balance valve 8 opens to ensure that the pressure in the buffer tank 1 is close to the pressure in the injection tank 2, so that the materials in the buffer tank 1 can be smoothly conveyed into the injection tank 2, effectively ensuring the stability of the operation of the feeding system.

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

[0069] The above first preset pressure can be the same as or close to the pressure in the injection tank 2.

[0070] The above-mentioned buffer pressure valve 13 can increase the pressure in the buffer tank 1 before the balance valve 8 is opened, so as to avoid a large pressure difference between the pressure in the buffer tank 1 and the pressure in the injection tank 2, enabling the pressure in the injection tank 2 to flow quickly into the buffer tank 1 through the balance valve 8, thus preventing a large loss of pressure in the injection tank 2 and affecting the material transportation.

[0071] In some embodiments, as Figure 1 shown, the feeding system further includes an injection pressure valve 14. The injection pressure valve 14 is connected to the injection tank 2, and the control device is electrically connected to the injection pressure valve 14. The control device is at least used to send a sixth control instruction to open the injection pressure valve 14 before the lower discharge port of the injection tank 2 conveys materials to the feeding device 5, so as to increase the air pressure in the injection tank 2.

[0072] In the above-mentioned embodiment, before conveying materials to the feeding device 5, the injection pressure valve 14 can continuously increase the pressure in the injection tank 2 to apply sufficient driving force to the materials in the injection tank 2, thereby completing the conveyance of materials from the injection tank 2 to the feeding device 5, further improving the stability and practicality of the feeding system.

[0073] In some embodiments, as Figure 1 shown, the feeding system further includes a buffer fluidization valve 15. The buffer fluidization valve 15 is connected to the buffer tank 1, and the control device is electrically connected to the buffer fluidization valve 15. The control device is at least used to send a seventh control instruction to open the buffer fluidization valve 15 after sending a second control instruction to open the balance valve 8.

[0074] In the above-mentioned embodiment, the buffer fluidization valve 15 can convey protective gas into the buffer tank 1 to improve the fluidity of the materials in the buffer tank 1, thereby improving the fluidization state and movement characteristics of the materials, and further enhancing the efficiency of material transportation.

[0075] The above-mentioned buffer fluidization valve 15 can be connected to the gas storage tank 12. During the process of conveying materials in the buffer tank 1 to the injection tank 2, the buffer fluidization valve 15 can be opened so that the protective gas in the gas storage tank 12 can be conveyed into the buffer tank 1, thereby increasing the speed of material conveyance to the injection tank 2.

[0076] In some embodiments, as Figure 1 shown, the feeding system further includes an injection fluidization valve 16. The injection fluidization valve 16 is connected to the injection tank 2, and the control device is electrically connected to the injection fluidization valve 16. The control device is at least used to send an eighth control instruction to open the injection fluidization valve 16 after the feeding device 5 is started.

[0077] In the above embodiments, protective gas can be conveyed into the injection tank 2 through the injection fluidizing valve 16 to improve the fluidity of the material in the injection tank 2, thereby improving the fluidization state and movement characteristics of the material, and further enhancing the efficiency of material conveyance.

[0078] The above-mentioned injection fluidizing 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 fluidizing valve 16 can be opened so that the protective gas in the gas storage tank 12 can be conveyed into the injection tank 2, thereby increasing the conveying speed of the material to the furnace body 7.

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

[0080] The continuous feeding process of the feeding system is specifically described as follows: First, before the feeding system feeds, a self-check step is performed on the feeding system. After the self-check step runs normally, it is judged whether the injection tank 2 is in a full-material state or a material-deficient state. If the injection tank 2 is in a full-material state, the injection tank 2 is pressurized, and after pressurization, the material is normally injected from the injection tank 2 into the furnace body 7; if the injection tank 2 is in a material-deficient state, the buffer tank 1 feeding step, the buffer tank 1 pressurization step, and the injection tank 2 feeding step are sequentially executed, and after feeding, the material is normally injected from the injection tank 2 into the furnace body 7.

[0081] The above-mentioned buffer tank 1 feeding step specifically includes: controlling the weighing component 3 to be in the second weighing mode to detect the ineffective weight information of the injection tank 2, and sequentially opening the exhaust valve 9, the buffer inlet valve 18, and the isolation valve 17 on the buffer tank 1, and after the material level in the buffer tank 1 reaches the preset material level, the isolation valve 17 and the buffer inlet valve 18 are sequentially closed, thereby completing the feeding of the buffer tank 1.

[0082] The above-mentioned buffer tank 1 pressurization step specifically includes: controlling the weighing component 3 to be in the second weighing mode to detect the ineffective weight information of the injection 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 injection tank 2 feeding step specifically includes: controlling the weighing component 3 to be in the second weighing mode to detect the ineffective weight information of the injection tank 2, and sequentially opening the balance valve 8, the injection inlet valve 22, the buffer outlet valve 19, and the buffer fluidizing valve 15 to empty the material in the buffer tank 1, and after emptying the buffer tank 1, the buffer outlet valve 19, the injection inlet valve 22, and the balance valve 8 are sequentially closed to complete the feeding of the injection tank 2.

[0084] The specific steps for pressurizing the above-mentioned injection tank 2 are as follows: Control the weighing assembly 3 to be in the second weighing mode to detect the invalid weight information of the injection tank 2, and sequentially close the injection inlet valve 22, the balance valve 8, and the injection outlet valve 23. After that, open the conveying valve 33. After the pressure in the injection tank 2 reaches the second preset pressure, close the injection pressurizing valve 14, thereby completing the pressurization of the injection tank 2.

[0085] The specific method for the above-mentioned injection tank 2 to normally inject materials into the furnace body 7 is as follows: Sequentially open the injection outlet valve 23, the feeding device 5, the injection fluidizing valve 16, and the conveying valve 33. At this time, the weighing assembly 3 is in the first weighing mode to detect the effective weight information of the injection tank 2, thereby completing the normal injection of materials into the furnace body 7.

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

[0087] The above description is intended to be illustrative rather than restrictive. For example, the above examples (or one or more of their solutions) can be used in combination with each other. For example, those of ordinary skill in the art can use other embodiments when reading the above description. Additionally, in the above detailed description, various features can be grouped together to simplify the present application. This should not be construed as an intention that the disclosed features not claimed are necessary for any claim. On the contrary, the subject matter of the present application can be less than all the features of a particular disclosed embodiment. Thus, the claims are incorporated herein as examples or embodiments into the detailed description, where each claim independently serves as a separate embodiment, and considering these embodiments, they can be combined with each other in various combinations or permutations. The scope of the present application should be determined with reference to the appended claims and the full scope of the equivalent forms empowered by these claims.

[0088] The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present application, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present application.

Claims

1. A feeding system for a furnace body, characterized in that, Comprising: A buffer tank, the upper feed inlet of the buffer tank is connected to a silo, and the buffer tank is used for receiving materials from the silo; A blow tank, the upper feed inlet of the blow tank is connected to the lower discharge outlet of the buffer tank through a valve assembly, the lower discharge outlet of the blow tank is connected to a feeding device, the feeding device is used for conveying materials to a furnace body through a feeding pipeline, the blow tank has a material shortage state where the material level inside is lower than a preset height and a full material state where the material level inside is not lower than the preset height, a first material level detection module is provided on the blow tank, and the first material level detection module is used for generating a low material level signal when the blow tank is in the material shortage state; A weighing assembly, the weighing assembly is arranged on the blow tank, the weighing assembly has a first weighing mode and a second weighing mode, and the weighing assembly is used for detecting the effective weight information of the blow tank in the first weighing mode and detecting the ineffective weight information of the blow tank in the second weighing mode; A control device, the control device is electrically connected to the first material level detection module, the valve assembly and the weighing assembly respectively, and the control device is used for sending a first control instruction to the weighing assembly to switch it from the first weighing mode to the second weighing mode after receiving the low material level signal generated by the first material level detection module, and controlling the valve assembly to open so that the buffer tank can supply materials to the blow tank.

2. The feeding system for a furnace body according to claim 1, characterized in that, The feeding device conveys materials to the furnace body in a rotatable manner, the weighing assembly is electrically connected to the feeding device, and is used for controlling the feeding device to work with variable parameters in the first weighing mode and controlling the feeding device to work with fixed parameters in the second weighing mode.

3. The feeding system for the furnace body according to claim 1, characterized in that, The feeding system further includes a balance valve, the balance valve is respectively communicated with the buffer tank and the blow tank, the control device is electrically connected to the balance valve, and the control device is at least used for sending a second control instruction to the balance valve to open it before the lower discharge outlet of the buffer tank conveys materials to the upper feed inlet of the blow tank, so as to balance the air pressure in the buffer tank and the blow tank.

4. The feeding system for the furnace body according to claim 1, wherein, The feeding system further includes an exhaust valve, the exhaust valve is communicated with the buffer tank, the control device is electrically connected to the exhaust valve, and the control device is at least used for sending a third control instruction to the exhaust valve to open it before the silo conveys materials 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 the furnace body according to claim 1, characterized in that The feeding system further includes a first protective gas path and a second protective gas path arranged in parallel, the feeding pipeline is respectively connected to the furnace body through the first protective gas path and the second protective gas path, and at least one of the first protective gas path and the second protective gas path is used for conveying protective gas to the furnace body.

6. The feeding system for a furnace body according to claim 5, characterized in that, The feeding system further includes a gas storage tank storing protective gas, the gas storage tank is respectively communicated with the first protective gas path and the second protective gas path, and is used for conveying 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 further includes a buffer pressure valve, which is communicated with the buffer tank. The control device is electrically connected to the buffer pressure valve. The control device is at least configured to send a fourth control instruction to open the buffer pressure valve before sending a second control instruction to open the balance valve, and send a fifth control instruction to close the buffer pressure valve 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 further includes a blowing pressure valve, which is communicated with the blowing tank. The control device is electrically connected to the blowing pressure valve. The control device is at least configured to send a sixth control instruction to open the blowing pressure valve to increase the air pressure in the blowing tank before the lower discharge port of the blowing tank conveys materials to the feeding device.

9. The feeding system for a furnace body according to claim 3, characterized in that, The feeding system further includes a buffer fluidization valve, which is communicated with the buffer tank. The control device is electrically connected to the buffer fluidization valve. The control device is at least configured to send a seventh control instruction to open the buffer fluidization valve after sending a second control instruction to open the balance valve.

10. The feeding system for a furnace body according to claim 3, characterized in that, The feeding system further includes a blowing fluidization valve, which is communicated with the blowing tank. The control device is electrically connected to the blowing fluidization valve. The control device is at least configured to send an eighth control instruction to open the blowing fluidization valve after the feeding device is started.

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