Heavy medium pre-separation high-temperature melt cache flow measurement and control system and method

Abstract

The invention provides a dense medium pre-separation high-temperature melt cache flow measurement and control system and method. The system comprises a transfer unit, a drainage unit and a cache flow control unit. The transfer unit comprises a melt transfer ladle, a melt transfer ladle tipping mechanism is arranged on the melt transfer ladle, a melt transfer ladle weighing sensor is arranged on the melt transfer ladle tipping mechanism, the melt transfer ladle weighing sensor is mounted on the melt operating platform, and the melt transfer ladle tipping mechanism is in communication connection with the melt transfer ladle weighing sensor; the drainage unit is arranged between the cache flow control unit and the transfer unit; the cache flow control unit comprises a cache package, a flow measurement and control piece is arranged on the cache package, a dense medium storage area is arranged in the cache package, a dam is arranged on the dense medium storage area, and a dense medium discharge port is formed in the dense medium storage area. In the system, the melt transfer ladle weighing sensor controls the flow of the melt transfer ladle and controls the outflow of a dense medium, interception is carried out through the retaining dam, and the flow measurement and control piece controls the outflow of the cache ladle, so that the measurement and control of outflow are realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-temperature melt waste heat recovery, and in particular to a system and method for measuring and controlling high-temperature melt buffer flow with heavy medium pre-separation. Background Art

[0002] In the production process of high-temperature melt, the generation of heavy media such as inclusions and slag is inevitable. The presence of these heavy media will not only affect the purity of the product, but also may have an adverse effect on the production equipment and process, which is particularly prominent in the production of industrial silicon.

[0003] During the production process of industrial silicon, about 10% of silicon slag will be deposited in the silicon water. The silicon slag is mainly composed of incompletely reacted raw materials, impurities and various compounds produced during the smelting process. These silicon slags are deposited at the bottom of the furnace or suspended in the silicon water. If all the silicon water produced is directly subjected to subsequent treatment, silicon slag will exist in the solidified silicon ingot, which will greatly reduce the purity of the product. Summary of the invention

[0004] In order to solve the problem that the silicon slag present in silicon water cannot be effectively removed in the existing industrial silicon production process, resulting in low purity of the product, the present invention provides a high-temperature melt buffer flow measurement and control system and method for heavy medium pre-separation.

[0005] To achieve the above object, the present invention provides the following technical solutions: The present invention proposes a high-temperature melt buffer flow control system capable of intercepting heavy medium, comprising a transfer unit, a drainage unit and a buffer flow control unit; The transfer unit includes a melt transfer bag for receiving high-temperature melt, a melt transfer bag tilting mechanism is provided on the melt transfer bag, a melt transfer bag weighing sensor is provided at the bottom of the melt transfer bag tilting mechanism, the melt transfer bag weighing sensor is installed on the melt operation platform, and the melt transfer bag tilting mechanism is communicatively connected to the melt transfer bag weighing sensor, wherein the melt transfer bag weighing sensor obtains weight information of the melt transfer bag, and controls the turning speed of the melt transfer bag tilting mechanism according to the weight information; The drainage unit is arranged between the buffer flow control unit and the transfer unit, one end of the drainage unit is located directly below the liquid outlet of the melt transfer bag, and the other end of the drainage unit is aligned with the liquid inlet of the buffer bag; The cache flow control unit includes a cache bag, a flow measuring component is arranged on the cache bag, a heavy medium storage area is arranged on the side of the inner bottom end surface of the cache bag close to the drainage unit, a dam is arranged on the side of the heavy medium storage area away from the drainage unit, and a heavy medium discharge port is arranged on the side of the dam in the heavy medium storage area; wherein the flow measuring component is used to obtain weight information of the cache bag to control the discharge of heavy medium in the heavy medium storage area, and the flow measuring component obtains liquid level information of the cache bag to control the discharge of melt liquid.

[0006] Preferably, the drainage unit is a slag chute.

[0007] Preferably, the side of the slag chute is provided with a raised wall surface.

[0008] Preferably, the bottom of the slag chute is inclined, and the bottom of the slag chute is located at one end of the melt transfer bag higher than the bottom of the slag chute is located at one end of the cache bag.

[0009] Preferably, the inner bottom surface shape of the slag chute is one of an S-type and a stepped type.

[0010] Preferably, an impact pad is provided at the bottom of the heavy medium storage area.

[0011] Preferably, the flow measurement control unit includes a stopper mechanism, a cache package weighing sensor for recording the weight information of the cache package, and a cache package liquid level meter for recording the liquid level information of the cache package; A drainage hole is arranged on the bottom end surface of the cache bag, a stopper rod mechanism is installed in the drainage hole, and the stopper rod mechanism is communicatively connected to the cache bag weighing sensor and the cache bag liquid level meter.

[0012] The present invention proposes a method for measuring and controlling the flow rate of a high-temperature melt buffer for heavy medium pre-separation, which is applied to the above-mentioned high-temperature melt buffer flow rate measurement and control system for heavy medium pre-separation, and comprises the following steps: The high-temperature melt is transported to the melt transfer bag in the transfer unit, the amount of the high-temperature melt in the melt transfer bag is detected by the melt transfer bag weighing sensor, and the melt transfer bag tilting mechanism is controlled to flip the melt transfer bag. When the melt transfer bag weighing sensor detects that the amount of the high-temperature melt in the melt transfer bag reaches a preset value, the tilting outflow is stopped, and the heavy medium is retained in the transfer bag; The high-temperature melt enters the buffer bag, and the heavy medium is intercepted by the dam and stored in the heavy medium storage area. The flow measurement control unit controls the heavy medium to be discharged from the heavy medium discharge port based on the first detection information of the buffer bag obtained; The melt transfer bag weighing sensor and the flow measurement and control unit monitor the flow rate of the high-temperature melt discharged from the cache bag based on the second detection information.

[0013] Preferably, it is characterized in that the flow measuring control unit controls the heavy medium to be discharged from the heavy medium discharge port based on the first detection information of the acquired cache package, including: During the process of conveying high temperature melt by the buffer package: The cache bag weighing sensor obtains a first weight value of the cache bag, and the cache bag liquid level meter obtains a first liquid level height value of the cache bag to obtain first detection information; If the first weight value reaches a preset weight threshold, the high-temperature melt is stopped from being transported to the buffer bag, and if the first liquid level value reaches a preset first height threshold, the heavy medium stored in the heavy medium storage area is discharged from the heavy medium discharge port; If the first liquid level value reaches a preset first height threshold, the high-temperature melt is stopped from being transported to the buffer bag, and the first weight value reaches a preset weight threshold, and the heavy medium stored in the heavy medium storage area is discharged from the heavy medium discharge port.

[0014] Preferably, the melt transfer bag weighing sensor and the flow measuring and controlling device monitor the flow rate of the high-temperature melt discharged from the buffer bag based on the second detection information, including: When the melt transfer ladle weighing sensor changes, the buffer ladle weighing sensor and the melt transfer ladle weighing sensor are interlocked with the stopper mechanism, and based on the second detection information obtained by the buffer ladle weighing sensor and the melt transfer ladle weighing sensor, the position of the stopper mechanism at the drain hole is adjusted to control the discharge flow of the high-temperature melt from the drain hole; When there is no change in the melt transfer bag weighing sensor: the cache bag level gauge is interlocked with the stopper rod mechanism, or the cache bag weighing sensor is interlocked with the stopper rod mechanism, and based on the second detection information obtained by the cache bag level gauge or the cache bag weighing sensor, the position of the stopper rod mechanism in the drain hole is adjusted to control the discharge flow of the high-temperature melt out of the drain hole.

[0015] Compared with the prior art, the present invention has the following beneficial technical effects: The present invention proposes a high-temperature melt buffer flow measurement and control system for heavy medium pre-separation. The system realizes the safe and orderly transportation and buffering of the high-temperature melt through the organic combination of the carefully designed transfer unit, the drainage unit and the buffer flow control unit. The melt transfer bag and its tipping mechanism in the transfer unit not only ensure the stable acceptance and flexible tipping of the high-temperature melt, but also obtain the outflow flow rate of the melt transfer bag and the residual material amount in the melt transfer bag through the precise monitoring of the melt transfer bag weighing sensor, so as to facilitate the control of the outflow of the heavy medium; the outflowing high-temperature melt is preliminarily Interception, improve interception efficiency, the cache bag provides sufficient cache space for the high-temperature melt, effectively alleviates the pressure fluctuation during the melt transfer process, and the dam set in the cache bag realizes the interception of heavy media in the high-temperature melt, filters out the heavy media in the high-temperature melt, avoids the heavy media from being mixed in the high-temperature melt, affects the subsequent processing of the high-temperature melt, and improves the product quality at the same time. The flow measurement and control unit in the cache flow control unit detects the outflow flow of the cache bag and the remaining material in the cache bag to realize the measurement and control of the outflow, ensures the accuracy of the discharge volume, improves work efficiency, and reduces energy consumption.

[0016] Furthermore, the drainage unit in the system is a slag chute, and a raised wall is arranged on the side of the slag chute. The high-temperature melt splashed during the drainage process is intercepted by the raised wall to prevent the high-temperature melt from splashing out of the slag chute and causing damage to other equipment; a plurality of slag plates are arranged on the bottom end face of the slag chute, and the plurality of slag plates are arranged at equal intervals along the length direction of the slag chute, which accelerates the deposition and separation of the heavy medium to the buffer bag, improves the efficiency and accuracy of slag interception, and improves the interception efficiency, thereby ensuring the purity of the high-temperature melt and the product quality.

[0017] Furthermore, the system is equipped with impact pads in the cache bag, which can reduce the splashing degree of high-temperature melt and heavy medium entering the heavy medium storage area, thereby enhancing the durability of the storage area. The impact pads can also reduce the impact and wear on the bottom of the storage area caused by the deposition of heavy medium through their buffering effect, thereby extending the service life of the equipment, enabling the dam to better intercept the heavy medium, improving the efficiency of heavy medium processing, and enhancing the stability of heavy medium interception. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of a high-temperature melt buffer flow measurement and control system for heavy medium pre-separation proposed by the present invention; In the attached drawings: 1. melt operation platform; 2. melt transfer bag weighing sensor; 3. melt transfer bag tipping mechanism; 4. melt transfer bag; 5. slag chute; 6. buffer bag cover; 7. buffer bag level gauge; 8. stopper mechanism; 9. buffer bag; 10. buffer bag weighing sensor; 11. impact pad; 12. heavy medium discharge port; 13. retaining dam; 14. heavy medium storage area. DETAILED DESCRIPTION

[0019] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0024] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0025] In the production process of high-temperature melt, the generation of heavy media such as inclusions and slag is inevitable. The presence of these heavy media will not only affect the purity of the product, but also may have an adverse effect on the production equipment and process, which is particularly prominent in the production of industrial silicon.

[0026] During the production process of industrial silicon, about 10% of silicon slag will be deposited in the silicon water. The silicon slag is mainly composed of incompletely reacted raw materials, impurities and various compounds produced during the smelting process. These silicon slags are deposited at the bottom of the furnace or suspended in the silicon water. If all the silicon water produced is directly subjected to subsequent treatment, silicon slag will exist in the solidified silicon ingot, which will greatly reduce the purity of the product.

[0027] In view of the above problems, the present invention proposes a high-temperature melt buffer flow measurement and control system for heavy medium pre-separation, such as Figure 1 As shown, the system includes a transfer unit, a drainage unit and a cache flow control unit, and the drainage unit is arranged between the cache flow control unit and the transfer unit; the system receives the high-temperature melt through the transfer unit, and transports the received high-temperature melt to the cache flow control unit through the drainage unit. During the transportation process, the heavy medium in the high-temperature melt is preliminarily intercepted by the drainage unit, and then further intercepted by the cache flow control unit, so as to effectively prevent the heavy medium from accumulating in the system, and filter the silicon water by intercepting the heavy medium, so as to avoid the appearance of silicon slag in the subsequent treatment of the silicon water, which leads to the reduction of the purity of the silicon ingot.

[0028] Among them, the transfer unit includes a melt transfer bag 4, the melt transfer bag 4 is used to receive high-temperature melt, and a melt transfer bag tilting mechanism 3 is arranged on the melt transfer bag 4. The melt transfer bag tilting mechanism 3 includes a mounting seat, and a melt transfer bag weighing sensor 2 is arranged at the bottom of the mounting seat. A support platform is symmetrically arranged on the top of the mounting seat, and a connecting platform is arranged on the top of the supporting platform. A rotating shaft is arranged on the connecting platform, and one end of the rotating shaft is fixed on the outer wall of the melt transfer bag 4. A rotating motor is connected to the rotating shaft, and the rotating motor is installed on the connecting platform. The rotating motor communicates with the melt transfer bag 4. The melt transfer bag weighing sensor is installed on the melt operating platform 1, and the melt operating platform 1 is installed on the installation platform. The amount of high-temperature melt in the melt transfer bag 4 is detected by the melt transfer bag weighing sensor 2. When the amount of high-temperature melt reaches the preset value, the melt transfer bag tilting mechanism 3 is controlled to flip the melt transfer bag 4, and the high-temperature melt in the melt transfer bag 4 is poured into the drainage unit. At the same time, the melt transfer bag weighing sensor 2 feeds back the outflow flow rate of the melt transfer bag 4 and the remaining material amount in the melt transfer bag 4, so as to control the outflow of heavy medium.

[0029] like Figure 1As shown, the cache flow control unit includes a cache bag 9, which is used to provide a high-temperature melt cache space for the high-temperature melt. A cache bag cover 6 is arranged on the top of the cache bag 9, and a flow measurement control unit is arranged on the cache bag cover 6. The flow measurement control unit includes a stopper mechanism 8, a cache bag weighing sensor 10 for recording the weight information of the cache bag 9, and a cache bag liquid level meter 7 for recording the liquid level information of the cache bag 9; a heavy medium storage area 14 is arranged on the bottom end surface of the interior of the cache bag 9 near the drainage unit, and an impact pad 11 is arranged at the bottom of the heavy medium storage area 14. 1 is used to buffer the high-temperature melt entering the cache bag 9 to prevent the high-temperature melt from splashing. A heavy medium discharge port 12 is provided on the side of the impact pad 11 in the heavy medium storage area 14. A dam 13 is provided on the side of the heavy medium storage area 14 in the cache bag 9 away from the drainage unit. The heavy medium in the high-temperature melt entering the cache bag 9 is intercepted by the dam 13. The intercepted heavy medium is stored in the heavy medium storage area 14 and then discharged from the heavy medium discharge port 12. A drainage hole is provided on the side of the cache bag 9 away from the drainage unit. A stopper rod mechanism 8 is installed in the drainage hole, and the stopper rod mechanism 8 is connected to the cache bag weighing sensor 10 and the cache bag liquid level meter 7 in communication. The stopper rod mechanism 8 includes a stopper rod, which is installed on the cache bag cover 6, and the bottom of the stopper rod is located in the drainage hole set at the bottom of the cache bag 9. A driver is provided on the stopper rod, and the driver is fixed on the stopper rod. The driver is a telescopic rod, and the telescopic head of the telescopic rod is connected to the top of the stopper rod, which is used to start the stopper rod to move and close or open the drainage hole. The cache bag weighing sensor 10 is set at the bottom of the cache bag 9, and the driver is connected to the cache bag in communication. The liquid level meter 7 and the cache bag weighing sensor 10 respectively control the opening and closing of the drain hole by the stopper rod through the cache bag liquid level meter 7 and the cache bag weighing sensor 10. The weight of the cache bag 9 is detected by the cache bag weighing sensor 10 in the cache flow control unit to obtain weight information. The cache bag liquid level meter 7 detects the liquid level height of the cache bag 9 to obtain liquid level information. The flow measurement control unit controls the discharge of the heavy medium from the heavy medium discharge port 12 and controls the discharge of the high-temperature melt in the cache bag 9 based on the obtained detection information of the cache bag 9, that is, the liquid level information or weight information.

[0030] like Figure 1 As shown, the drainage unit is a slag chute 5, one end of which is located directly below the liquid outlet of the melt transfer bag 4, and the other end of the slag chute 5 is aligned with the liquid inlet of the buffer bag 9. The side of the slag chute 5 is provided with an increased wall surface, and the increased wall surface is used to block the splashing liquid during the falling process of the high-temperature melt. The bottom of the slag chute 5 is inclined, and the bottom of the slag chute 5 is located at one end of the melt transfer bag 4 higher than the bottom of the slag chute 5 is located at one end of the buffer bag 9; a plurality of slag plates are provided on the inner bottom surface of the slag chute 5, and the plurality of slag plates are arranged at equal intervals along the length direction of the slag chute 5, or the inner bottom surface of the slag chute 5 is one of a stepped type and an S-type.

[0031] The present invention proposes a method for measuring and controlling the flow rate of a high-temperature melt buffer for heavy medium pre-separation, which is applied to the above-mentioned high-temperature melt buffer flow rate measurement and control system for heavy medium pre-separation, and comprises the following steps: The high-temperature melt is transported to the melt transfer bag 4 in the transfer unit, the amount of the high-temperature melt in the melt transfer bag 4 is detected by the melt transfer bag weighing sensor 2, and the melt transfer bag tipping mechanism 3 is controlled to flip the melt transfer bag 4. When the melt transfer bag weighing sensor 2 detects that the amount of the high-temperature melt in the melt transfer bag 4 reaches a preset value, the tipping outflow is stopped, and the heavy medium is retained in the transfer bag; The high-temperature melt enters the buffer bag 9, and the heavy medium is intercepted by the dam 13 and stored in the heavy medium storage area 14. The flow measurement control unit controls the heavy medium to be discharged from the heavy medium discharge port 12 based on the first detection information of the buffer bag 9 obtained; The melt transfer bag weighing sensor 2 and the flow measurement control unit monitor the flow rate of the high-temperature melt discharged from the buffer bag 9 based on the second detection information.

[0032] The flow measurement control unit controls the heavy medium to be discharged from the heavy medium discharge port 12 based on the first detection information of the cache package 9 obtained, including: During the high temperature melt conveying process of buffer package 9: The cache bag weighing sensor 10 obtains a first weight value of the cache bag 9, and the cache bag liquid level meter 7 obtains a first liquid level height value of the cache bag 9, thereby obtaining first detection information; If the first weight value reaches the preset weight threshold, the delivery of the high-temperature melt to the buffer bag 9 is stopped. If the first liquid level height value reaches the preset first height threshold, the heavy medium stored in the heavy medium storage area 14 is discharged from the heavy medium discharge port 12. Otherwise, the melt transfer bag tilting mechanism 3 is started to transport the high-temperature melt again.

[0033] If the first liquid level height value reaches the preset first height threshold, the delivery of the high-temperature melt to the cache bag 9 is stopped; if the first weight value reaches the preset weight threshold, the heavy medium stored in the heavy medium storage area 14 is discharged from the heavy medium discharge port 12; otherwise, the melt transfer bag tilting mechanism 3 is started to deliver the high-temperature melt again.

[0034] The melt transfer bag weighing sensor 2 and the flow measurement control unit monitor the flow rate of the high-temperature melt discharged from the buffer bag 9 based on the second detection information, including: When the melt transfer bag weighing sensor 2 changes, the buffer bag weighing sensor 10 and the melt transfer bag weighing sensor 2 are interlocked with the stopper mechanism 8. Based on the second detection information obtained by the buffer bag weighing sensor 10 and the melt transfer bag weighing sensor 2, the position of the stopper mechanism 8 in the drainage hole is adjusted, that is, the preset detection time. If the flow information obtained by the buffer bag weighing sensor 10 and the melt transfer bag weighing sensor 2 within the latter preset detection time is greater than the flow information obtained within the previous preset detection time, the stopper mechanism 8 is adjusted to move upward, increase the gap between the stopper rod and the drainage hole in the stopper mechanism 8, and increase the buffer bag 9. The high-temperature melt in the buffer bag 9 is discharged; if the flow information obtained by the buffer bag weighing sensor 10 and the melt transfer bag weighing sensor 2 within the latter preset detection time is less than the flow information obtained within the previous preset detection time, the stopper rod mechanism 8 is adjusted to move upward, thereby reducing the gap between the stopper rod and the drainage hole in the stopper rod mechanism 8, and reducing the discharge of the high-temperature melt in the buffer bag 9, thereby monitoring the discharge flow of the high-temperature melt out of the drainage hole; wherein, the buffer bag weighing sensor 10 obtains the weight in the buffer bag 9, and obtains the flow information based on the weight, and the melt transfer bag weighing sensor 2 obtains the weight in the melt transfer bag 4, and obtains the flow information based on the weight.

[0035] When the melt transfer bag weighing sensor 2 does not change: the cache bag level meter 7 is interlocked with the stopper mechanism 8, or the cache bag weighing sensor 10 is interlocked with the stopper mechanism 8, and based on the second detection information obtained by the cache bag level meter 7 or the cache bag weighing sensor 10, the position of the stopper mechanism 8 in the drainage hole is adjusted, that is, the cache bag level meter 7 obtains the second liquid level height value of the cache bag 9 within the next preset detection time, which is greater than the second liquid level height value within the previous preset detection time, or the cache bag weighing sensor 10 obtains the flow information within the next preset detection time, which is greater than the flow information obtained within the previous preset detection time, then the stopper mechanism 8 is adjusted to move upward, increase the gap between the stopper rod in the stopper mechanism 8 and the drainage hole, increase the discharge of the high-temperature melt in the cache bag 9, and control the discharge flow of the high-temperature melt out of the drainage hole.

[0036] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0037] In addition, it should be understood that although this specification is described in accordance with the implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art. The above content is only to illustrate the technical idea of ​​the present invention, and cannot be used to limit the protection scope of the present invention. Any changes made on the basis of the technical solution according to the technical idea proposed by the present invention shall fall within the protection scope of the claims of the present invention.

Claims

1. A high-temperature melt buffer flow control system capable of intercepting heavy medium, characterized in that: It includes a transfer unit, a drainage unit and a cache flow control unit; The transfer unit comprises a melt transfer bag (4) for receiving high-temperature melt, the melt transfer bag (4) being provided with a melt transfer bag tilting mechanism (3), the bottom of the melt transfer bag tilting mechanism (3) being provided with a melt transfer bag weighing sensor (2), the melt transfer bag weighing sensor (2) being installed on the melt operation platform (1), the melt transfer bag tilting mechanism (3) being communicatively connected to the melt transfer bag weighing sensor (2), wherein the melt transfer bag weighing sensor (2) obtains weight information of the melt transfer bag (4), and controls the turning speed of the melt transfer bag tilting mechanism (3) according to the weight information; The drainage unit is arranged between the buffer flow control unit and the transfer unit, one end of the drainage unit is located directly below the liquid outlet of the melt transfer bag (4), and the other end of the drainage unit is aligned with the liquid inlet of the buffer bag (9); The cache flow control unit comprises a cache bag (9), a flow measuring control unit is arranged on the cache bag (9), a heavy medium storage area (14) is arranged on the inner bottom end surface of the cache bag (9) on the side close to the drainage unit, a dam (13) is arranged on the side of the heavy medium storage area (14) away from the drainage unit, and a heavy medium discharge port (12) is arranged in the heavy medium storage area (14) on the side of the dam (13); wherein the flow measuring control unit is used to obtain weight information of the cache bag (9) to control the discharge of the heavy medium in the heavy medium storage area (14), and the flow measuring control unit obtains liquid level information of the cache bag (9) to control the discharge of the melt liquid.

2. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 1, characterized in that: The drainage unit is a slag chute (5).

3. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 2, characterized in that: The side of the slag chute (5) is provided with a raised wall surface.

4. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 2, characterized in that: The bottom of the slag chute (5) is inclined, and the bottom of the slag chute (5) is located at one end of the melt transfer bag (4) higher than the bottom of the slag chute (5) is located at one end of the buffer bag (9).

5. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 4, characterized in that: The inner bottom surface shape of the slag chute (5) is one of an S-type and a stepped type.

6. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 1, characterized in that: An impact pad (11) is provided at the bottom of the heavy medium storage area (14).

7. A high-temperature melt buffer flow control system capable of intercepting heavy medium according to claim 1, characterized in that: The flow measurement control unit comprises a stopper mechanism (8), a cache package weighing sensor (10) for recording weight information of the cache package (9), and a cache package liquid level meter (7) for recording liquid level information of the cache package (9); A drainage hole is provided on the bottom end surface of the cache bag (9), a stopper rod mechanism (8) is installed in the drainage hole, and the stopper rod mechanism (8) is communicatively connected to the cache bag weighing sensor (10) and the cache bag liquid level meter (7).

8. A method for measuring and controlling the flow rate of a high-temperature melt buffer for heavy medium pre-separation, applied to a system for measuring and controlling the flow rate of a high-temperature melt buffer for heavy medium pre-separation according to any one of claims 1 to 7, characterized in that: The following steps are involved: A high-temperature melt is transported to a melt transfer bag (4) in a transfer unit, the amount of the high-temperature melt in the melt transfer bag (4) is detected by a melt transfer bag weighing sensor (2), and a melt transfer bag tipping mechanism (3) is controlled to tip the melt transfer bag (4). When the melt transfer bag weighing sensor (2) detects that the amount of the high-temperature melt in the melt transfer bag (4) reaches a preset value, the tipping outflow is stopped, and the heavy medium is retained in the transfer bag; The high-temperature melt enters the buffer bag (9), the heavy medium is intercepted by the dam (13) and stored in the heavy medium storage area (14), and the flow measurement control unit controls the heavy medium to be discharged from the heavy medium discharge port (12) based on the first detection information of the buffer bag (9) obtained; The melt transfer bag weighing sensor (2) and the flow measurement and control unit monitor the flow rate of the high-temperature melt discharged from the buffer bag (9) based on the second detection information.

9. A high-temperature melt buffer flow control method capable of intercepting heavy medium according to claim 8, characterized in that: The flow measurement control unit controls the heavy medium to be discharged from the heavy medium discharge port (12) based on the first detection information of the acquired cache package (9), comprising: During the process of the buffer package (9) conveying the high-temperature melt: The cache bag weighing sensor (10) obtains a first weight value of the cache bag (9), and the cache bag liquid level meter (7) obtains a first liquid level height value of the cache bag (9), thereby obtaining first detection information; If the first weight value reaches a preset weight threshold, the high-temperature melt is stopped from being transported to the buffer bag (9); if the first liquid level value reaches a preset first height threshold, the heavy medium stored in the heavy medium storage area (14) is discharged from the heavy medium discharge port (12); If the first liquid level value reaches a preset first height threshold, the delivery of the high-temperature melt to the buffer bag (9) is stopped, and if the first weight value reaches a preset weight threshold, the heavy medium stored in the heavy medium storage area (14) is discharged from the heavy medium discharge port (12).

10. A high-temperature melt buffer flow control method capable of intercepting heavy medium according to claim 8, characterized in that: The melt transfer bag weighing sensor (2) and the flow measurement and control unit monitor the flow rate of the high-temperature melt discharged from the buffer bag (9) based on the second detection information, including: When the melt transfer ladle weighing sensor (2) changes, the buffer ladle weighing sensor (10) and the melt transfer ladle weighing sensor (2) are interlocked with the stopper mechanism (8), and based on the second detection information obtained by the buffer ladle weighing sensor (10) and the melt transfer ladle weighing sensor (2), the position of the stopper mechanism (8) at the drainage hole is adjusted to control the discharge flow rate of the high-temperature melt from the drainage hole; When the melt transfer bag weighing sensor (2) does not change: the cache bag level meter (7) is interlocked with the stopper mechanism (8), or the cache bag weighing sensor (10) is interlocked with the stopper mechanism (8), and based on the second detection information obtained by the cache bag level meter (7) or the cache bag weighing sensor (10), the position of the stopper mechanism (8) at the drainage hole is adjusted to control the discharge flow of the high-temperature melt from the drainage hole.

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