Sand collection system and smelting equipment

Abstract

The present invention relates to the technical field of smelting equipment, and in particular to a sand collecting system and smelting equipment. The sand collecting system includes a moving device and a collecting bin and a storage bin arranged at intervals. The collecting bin includes a shell, the chamber of the shell can accommodate and cool the sand particles ejected from the smelting furnace. The shell includes an inlet for the sand particles to enter the chamber and an outlet for the sand particles to be discharged from the chamber in a switchable manner. The moving device can move back and forth between the loading position and the storage bin to transport the sand particles from the chamber to the storage bin. At the loading position, the inlet of the bin of the moving device is below the outlet and on the movement trajectory of the sand particles discharged from the outlet, so that the sand particles can automatically fall into the bin from the outlet. The sand particles in the collecting bin chamber of the sand collecting system are automatically discharged into the bin of the moving device located at the loading position through the outlet under the action of their own weight, so that the moving device can transfer the sand particles from the collecting bin to the storage bin safely and efficiently.

Description

Technical Field

[0001] The present invention relates to the technical field of smelting equipment, and in particular to a sand collection system and smelting equipment. Background Art

[0002] Currently, aluminosilicate ceramic sand is produced through a series of steps, including smelting, blowing, and granulation. Specifically, a high-temperature electric arc furnace melts bauxite raw material to produce a molten liquid. This molten liquid, under the influence of high-pressure gas, flows out of the furnace through a discharge port at the front end and into a storage room directly in front of the furnace (typically 5-10 meters long, 2-3 meters wide, and 1.5-2 meters high) along the direction of the high-pressure gas jet. This storage room is typically 5-10 meters long, 2-3 meters wide, and 1.5-2 meters high) for sedimentation and temporary storage. It should be noted that upon contact with the low-temperature, high-pressure air, the high-temperature molten liquid forms ceramic sand, which then falls into the storage room for cooling.

[0003] However, the storage room is a closed space built of cement or shaped materials, with only one opening, namely, the feed port located opposite the discharge port of the high-temperature electric arc furnace. Operators need to wait until the ceramic sand is cooled before entering the storage room through the feed port for cleaning, shoveling and other transfer operations. The high-temperature ceramic sand takes a long time to cool naturally, resulting in a long production process for ceramic sand, which is time-consuming, labor-intensive and has low production efficiency. Summary of the Invention

[0004] In view of this, the present invention provides a sand collecting system and a smelting device to solve the problem in the prior art that ceramic sand in the storage room needs to be manually operated, which is time-consuming and labor-intensive.

[0005] In order to achieve the above-mentioned objectives, the present invention provides a sand collection system on the one hand, including a moving device and a collecting bin and a storage bin arranged at intervals. The collecting bin includes a shell, the chamber of the shell can accommodate and cool the sand particles ejected from the smelting furnace, the shell includes an inlet for the sand particles to enter the chamber and an outlet for the sand particles to be discharged from the chamber in an on-off manner, the moving device can move back and forth between the loading position and the storage bin to transport the sand particles from the chamber to the storage bin, and at the loading position, the inlet of the bin of the moving device is below the outlet and on the movement trajectory of the sand particles discharged from the outlet, so that the sand particles can automatically fall into the bin from the outlet.

[0006] Optionally, the sand collecting system includes a track, which is arranged between the loading position and the unloading position and can guide the mobile device to move along the extension direction of the track. At the unloading position, the silo of the mobile device is arranged adjacent to the storage port of the storage silo.

[0007] Optionally, the sand collection system includes a control unit, wherein:

[0008] A first position sensor is provided on the track, the first position sensor is provided at the loading position and can detect whether the mobile device has moved to the loading position, the control unit is electrically connected to the first position sensor and the mobile device respectively and can control the start and stop of the mobile device according to the position information monitored by the first position sensor; and / or

[0009] A second position sensor is provided on the track, which is provided at the unloading position and can detect whether the mobile device has moved to the unloading position. The control unit is electrically connected to the second position sensor and the mobile device respectively and can control the start and stop of the mobile device according to the position information monitored by the second position sensor.

[0010] Optionally, when the track is provided with a first position sensor, the shell is provided with a valve body at the discharge port to connect or disconnect the discharge port, and the control unit can control the opening and closing of the valve body according to the position information monitored by the first position sensor.

[0011] Optionally, the mobile device includes a meter, which is arranged at the bottom of the silo and can measure the weight of the sand particles in the silo. The control unit is electrically connected to the meter and the valve body respectively and can control the opening and closing of the valve body according to the weight information measured by the meter.

[0012] Optionally, the entrance of the silo is configured to be open upward, and a screening device is provided at the entrance of the silo. The screening device is configured to screen the sand particles falling into the entrance of the silo to screen out sand particles with qualified particle size, thereby allowing the sand particles with qualified particle size to fall into the silo.

[0013] Optionally, the control unit is electrically connected to the screening device and can control the opening and closing of the screening device according to the weight information.

[0014] Optionally, the sand collecting system includes at least two material collecting bins arranged in a straight line, and the feed inlets of the at least two material collecting bins are sequentially connected in the arrangement of the at least two material collecting bins.

[0015] Optionally, the receiving bin is a rectangular parallelepiped structure, the bottom wall of the rectangular parallelepiped structure protrudes downward to form a square cone, and the discharge port is arranged at the bottom tip of the square cone; and / or

[0016] The sand collecting system includes a connecting track, which is connected to the track and is arranged between the loading positions corresponding to the discharge ports of at least two of the collecting bins. The connecting track is configured to guide the moving device to move along the extension direction of the connecting track, so that the moving device can move back and forth between the loading position corresponding to each of the collecting bins and the track.

[0017] The second aspect of the present invention also provides a smelting equipment, including a smelting furnace and the sand collection system. The smelting furnace can spray the sand particles into the chamber through the inlet, and the chamber can cool the sand particles and automatically discharge the sand particles through the outlet into the silo of the mobile device located at the loading position. The mobile device can transport the sand particles in the silo to the storage silo for storage.

[0018] Through the above technical solution, the sand collecting system is provided with a collecting bin, and a discharge port is provided at the bottom of the shell of the collecting bin, so that the sand particles in the shell chamber of the collecting bin can be discharged from the discharge port under the action of their own gravity, and the moving device can move between the loading position and the storage bin, so that the moving device can automatically receive the sand particles through the bin at the loading position and transport the sand particles in the bin to the storage bin, thereby completing the sand collecting operation of the sand collecting system, improving the sand collecting efficiency, and being safe and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a smelting equipment provided by the present invention.

[0020] Description of Reference Numerals

[0021] 1. Material receiving bin; 2. Chamber; 3. Material inlet; 4. Valve body; 5. Track; 6. First position sensor; 7. Second position sensor; 8. Moving device; 9. Material bin; 10. Measuring device; 11. Screening device; 12. Material storage bin; 13. Material storage port; 14. Melting furnace; 15. Material spraying port. DETAILED DESCRIPTION

[0022] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0023] The first aspect of the present invention provides a sand collection system, such as Figure 1As shown, it includes a moving device 8 and a receiving bin 1 and a storage bin 12 arranged at intervals. The receiving bin 1 includes a shell, and the chamber 2 of the shell can accommodate and cool the sand particles ejected from the smelting furnace 14. The shell includes an inlet 3 for the sand particles to enter the chamber 2 and an outlet for the sand particles to be discharged from the chamber 2 in an on-off manner. The moving device can move back and forth between the loading position corresponding to the outlet and the storage bin 12 to transport the sand particles from the chamber to the storage bin 12. At the loading position, the entrance of the bin 9 of the moving device is below the outlet and on the movement trajectory of the sand particles discharged from the outlet, so that the sand particles can automatically fall into the bin 9 from the outlet.

[0024] Through the above technical solution, the sand collecting system is provided with a collecting bin 1, and a discharge port is provided at the bottom of the shell of the collecting bin 1, so that the sand particles in the shell chamber 2 of the collecting bin 1 can be discharged from the discharge port under the action of their own gravity, and the moving device 8 can move between the loading position and the storage bin 12, so that the moving device 8 can automatically receive the sand particles through the silo 9 at the loading position and transport the sand particles in the silo 9 to the storage bin 12, which significantly shortens the production cycle of the sand collecting system, thereby completing the sand collecting operation of the sand collecting system and improving the sand collecting efficiency, which is safe and efficient. The movement trajectory of the sand particles can be of various shapes, for example, it can be a vertically downward straight line, then, when the moving device moves to the loading position, the entrance of the silo 9 of the moving device is located directly below the discharge port of the collecting bin 1. In addition, the sand particles can be of various materials, for example, ceramic sand, etc.

[0025] In order to improve the accuracy of the mobile device docking at the loading position or the storage bin 12, the sand collection system includes a track 5, which is arranged between the loading position and the unloading position corresponding to the storage bin 12 and can guide the mobile device 8 to move along the extension direction of the track 5. At the unloading position, the bin 9 of the mobile device is arranged adjacent to the storage port 13 of the storage bin 12, preventing the mobile device from deviating from the route during movement, thereby improving the efficiency of the mobile device in transporting sand. The mobile device can be set as a trolley, and the track can be set as a double track to adapt to the double-wheel structure of the trolley.

[0026] In order to further improve the docking accuracy of the mobile device, the sand collecting system includes a control unit, wherein: a first position sensor 6 is provided on the track 5, the first position sensor 6 is provided at the loading position and can detect whether the mobile device 8 has moved to the loading position, the control unit is electrically connected to the first position sensor 6 and the mobile device 8 respectively and can control the start and stop of the mobile device 8 according to the position information monitored by the first position sensor 6, so that the mobile device can stop accurately at the loading position, which is beneficial for the silo 9 of the mobile device to automatically receive all the sand particles discharged from the collecting silo 1 through the discharge port, preventing the sand particles from being wasted due to scattering on the ground, which is safe and efficient. Among them, the mobile device 8 can be in various forms, for example, it can be a material transport trolley, the silo 9 is the carriage of the material transport trolley, and the entrance of the silo 9 is the top opening of the carriage; in addition, the first position sensor 6 can be in various forms, as long as it can detect whether the mobile device has moved to the loading position, for example, it can be set as a radar ranging sensor or a pressure sensor. When in use, first, the radar distance sensor on the track can detect that the trolley moves to the loading position, or the pressure sensor on the track can detect the pressure applied by the trolley; then, the control unit controls the trolley to stop.

[0027] Furthermore, a second position sensor 7 is provided on the track 5, and the second position sensor 7 is provided at the unloading position and can detect whether the mobile device 8 has moved to the unloading position. The control unit is electrically connected to the second position sensor 7 and the mobile device 8 respectively and can control the start and stop of the mobile device 8 according to the position information monitored by the second position sensor 7, so that the mobile device can stop accurately at the unloading position, and it is convenient for the mobile device to discharge all the sand particles in the silo 9 into the storage bin 12, which is safe and efficient. Among them, the mobile device 8 can be in various forms, for example, it can be a dump truck, and the carriage of the dump truck is the silo 9. At the unloading position, the dump truck can be flipped to send all the sand particles in the silo 9 to the storage bin 12 through the storage port 13; in order to facilitate the dump truck to flip the sand particles in the silo 9 directly into the storage bin 12, the storage bin 12 can be set as an underground structure. Furthermore, the second position sensor 7 can be in various forms, as long as it can detect whether the moving device has moved to the unloading position. For example, it can be configured as a radar distance sensor or a pressure sensor. During use, first, the radar distance sensor on the track can detect that the trolley has moved to the unloading position, or the pressure sensor on the track can detect the pressure applied by the trolley. The control unit then controls the trolley to stop. At this point, the control unit can also control the dump trolley to flip over for fully automatic unloading.

[0028] Furthermore, when the track 5 is provided with a first position sensor 6, the housing is provided with a valve body 4 at the discharge port to connect or disconnect the discharge port. The control unit can control the opening and closing of the valve body 4 based on the position information monitored by the first position sensor 6, so that the silo 9 of the mobile device automatically receives the sand in the receiving silo 1, shortening the transfer cycle between the receiving silo 1 and the mobile device, thereby improving the transfer efficiency of the sand collection system. The valve body 4 can be configured in various forms, for example, it can be an on-off valve.

[0029] Furthermore, the mobile device 8 includes a meter 10, which is disposed at the bottom of the silo 9 and is capable of measuring the weight of the sand in the silo 9. The control unit is electrically connected to the meter 10 and the valve body 4, respectively, and is capable of controlling the opening and closing of the valve body 4 based on the weight information measured by the meter 10. This facilitates controlling the opening and closing of the discharge port of the receiving silo 1 based on the weight of the sand received in the silo 9, thereby preventing the discharge port of the receiving silo 1 from overflowing the silo 9 due to excessive sand discharge, or affecting the transfer efficiency due to insufficient sand discharge, thereby achieving safety and efficiency. The meter 10 can be configured in various forms, such as a weight sensor. During use, when the weight value measured by the weight sensor is higher than a preset value, the control unit controls the valve body 4 to close; otherwise, the control unit controls the valve body 4 to open based on the weight sensor. Furthermore, the preset value of the weight sensor can be set based on a comprehensive consideration of multiple factors, such as the capacity of the silo 9 and the volume and density of the sand.

[0030] Furthermore, the entrance of the silo 9 is set to be open upward, and a screening device 11 is provided at the entrance of the silo 9. The screening device 11 is set to be able to screen the sand particles falling into the entrance of the silo 9 to screen out sand particles with qualified particle size, and then allow the sand particles with qualified particle size to fall into the silo 9. The structure is simpler, which is conducive to improving the uniformity of the sand particles in the silo 9. The screening device 11 can also quickly screen out impurities such as fibers and bonding blocks mixed in the sand particles, thereby ensuring the quality of the sand particles in the silo 9 and further ensuring the quality of the sand particles in the storage bin 12.

[0031] Furthermore, the control unit is electrically connected to the screening device 11 and can control the opening and closing of the screening device 11 based on the weight information, thereby reducing unnecessary operation of the screening device 11 and saving energy. The screening device 11 can be configured in various forms, such as a vibrating screen. During use, when the weight value measured by the weight sensor is higher than the preset value, the control unit controls the screening device 11 to be closed; when the weight value measured by the weight sensor is higher than 0, the control unit controls the screening device 11 to be opened.

[0032] Further, such as Figure 1As shown, the sand collecting system includes at least two (e.g., two) receiving bins 1 arranged in a straight line, with the feed ports 3 of the at least two receiving bins 1 being sequentially connected in the arrangement direction of the at least two receiving bins 1. During operation, high-pressure gas is injected into the smelting furnace 14, and the high-temperature molten liquid is sprayed into the at least two receiving bins 1 through the injection port 15. Specifically, during the molten liquid's ejection through the air, the high-temperature molten liquid contacts the low-temperature air, forming a plurality of sand particles of varying sizes. Due to the influence of the sand particles' own gravity, the smaller the sand particles, the farther they fly. In other words, in two adjacent receiving bins 1, the sand particles in the receiving bin 1 closer to the injection port 15 of the smelting furnace 14 are larger than the sand particles in the receiving bin 1 farther from the injection port 15 of the smelting furnace 14. It is worth mentioning that the feed ports 3 of at least two of the receiving bins 1 and the spray port 15 of the smelting furnace 14 are sequentially arranged along the arrangement direction of the at least two receiving bins 1. Specifically, the arrangement direction of the at least two receiving bins 1 can be any horizontal direction (for example, Figure 1 left and right directions as shown).

[0033] Furthermore, the sand collecting system further includes a connecting track, which is connected to the track 5 and is disposed between the loading positions corresponding to the discharge ports of at least two of the receiving bins 1. The connecting track is configured to guide the movement of the moving device along the extension direction of the connecting track, so that the moving device can reciprocate between the loading position corresponding to each of the receiving bins 1 and the track 5. The connecting track being disposed between the loading positions corresponding to the discharge ports of at least two of the receiving bins 1 means that the connecting track can be disposed between the loading positions corresponding to any two of the receiving bins 1, or the connecting track can be disposed only between the loading positions corresponding to every two adjacent receiving bins 1. According to some specific embodiments of the present invention, when the discharge ports of at least two receiving bins 1 are arranged sequentially in the arrangement direction of the at least two receiving bins 1, and each loading position is directly below the discharge port of the receiving bin 1, the connecting track is also correspondingly disposed along the arrangement direction of the at least two receiving bins 1 and directly below each discharge port.

[0034] Given that the sand collecting system includes at least two of the aforementioned collecting bins 1 (for example, two), and the discharge ports of the at least two of the aforementioned collecting bins 1 also correspond to different loading positions, a connecting track is provided so that the mobile device can move between the aforementioned different loading positions under the guidance of the connecting track, so that the mobile device can quickly collect and store the sand in the at least two collecting bins 1; and the connecting track is connected to the track 5, so that the mobile device can smoothly transport the sand received at any of the collecting bins 1 to the storage bin 13, thereby ensuring that the mobile device can perform sand collection operations for the at least two collecting bins 1. It should be noted that the sand collecting system can be provided with a single track 5 to assist in achieving the sand collection operation of the at least two collecting bins 1 through the connecting track; in addition, the sand collecting system can also be provided with at least two tracks 5, one end of the at least two tracks 5 can be respectively provided in a one-to-one correspondence with the loading positions corresponding to the at least two sand collecting bins 1, and the other end of the at least two tracks 5 can be provided at the unloading positions corresponding to the storage bin 13. In addition, the storage bin 13 can be set in various forms, for example, it can be set as one; in view of the different particle sizes of sand particles in different receiving bins 1, in order to facilitate classified storage, or, the storage bin 13 can also be multiple.

[0035] In order to facilitate classified storage, the sand collecting system may further include at least two storage bins 12 arranged in one-to-one correspondence with at least two of the material collecting bins 1, and the sand collecting system may further include at least two tracks 5 arranged in one-to-one correspondence with at least two of the material collecting bins 1, that is, tracks 5 are provided between the loading position corresponding to each material collecting bin 1 and the unloading position corresponding to the corresponding storage bin 12, so that the mobile device can smoothly perform the transfer operation. Of course, in order to enable the sand collecting system to share the same mobile device, the sand collecting system may further be provided with a connecting track, and the connecting track is provided between any two tracks to connect the two tracks 5. Furthermore, in order to make the planning more orderly and facilitate the smooth operation of the mobile device, at least two tracks 5 may be arranged in parallel at intervals, and at least two storage bins 12 may be arranged side by side on the same side of at least two material collecting bins 1 (for example, at least two storage bins 12 may both be provided on the same side of the at least two material collecting bins 1). Figure 1 On this basis, the connecting rails can be connected to the loading positions of at least two rails 5, or the connecting rails can be connected to the unloading positions of at least two rails 5. In addition, the receiving bin 1 can be made of various materials, for example, stainless steel, to facilitate magnetic separation of sand particles.

[0036] Furthermore, the material receiving bin 1 is a rectangular parallelepiped structure, the bottom wall of which protrudes downward to form a square cone, and the discharge port is arranged at the bottom tip of the square cone, so that the sand particles in the chamber 2 of the material receiving bin 1 are automatically collected from the rectangular parallelepiped structure at the funnel-shaped square cone under the action of their own gravity, and then automatically discharged vertically downward from the discharge port. This not only ensures the automatic transfer of sand particles between the material receiving bin 1 and the bin 9 of the mobile device, but also helps to improve the transfer efficiency of the sand collecting system. The rectangular parallelepiped structure can be in various forms, for example, it can be set to be 10m long, 4m wide, and 2m high. In addition, the rectangular parallelepiped structure is Figure 1 The left and right side walls shown can be arranged perpendicular to the arrangement direction of the at least two material receiving bins 1, and the left and right side walls of the rectangular parallelepiped structure are configured as fully open openings, so that the openings at the left and right side walls of multiple material receiving bins 1 together form the feed inlets of multiple material receiving bins 1. In addition, in order to ensure that the discharge port of the material receiving bin 1 is located above the inlet of the silo 9 of the mobile device, the material receiving bin 1 can be suspended (for example, suspended at a height of 2m-2.5m above the ground).

[0037] The second aspect of the present invention provides a smelting device, such as Figure 1 As shown, it includes a smelting furnace 14 and the sand collection system as described above, the smelting furnace 14 can spray the sand particles into the chamber 2 through the inlet 3, the chamber 2 can cool the sand particles and automatically discharge the sand particles through the outlet to the silo 9 of the mobile device located at the loading position, and the mobile device 8 can transport the sand particles in the silo 9 to the storage silo 12 for storage.

[0038] Through the above technical solution, the smelting equipment is provided with a material receiving bin 1, and a discharge port is provided at the bottom of the shell of the material receiving bin 1, so that the sand particles in the shell chamber 2 of the material receiving bin 1 can be discharged from the discharge port under the action of their own gravity, and the moving device 8 can move between the loading position and the storage bin 12, so that the moving device 8 can automatically receive the sand particles through the hopper 9 at the loading position and transport the sand particles in the hopper 9 to the storage bin 12, which significantly shortens the production cycle of the sand collecting system, thereby completing the sand collecting operation of the sand collecting system, improving the sand collecting efficiency, and being safe and efficient.

[0039] While the preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, the present invention is not limited thereto. Within the technical scope of the present invention, various simple variations of the technical solution of the present invention may be made. To avoid unnecessary repetition, the present invention will not further describe various possible combinations. However, these simple variations and combinations should also be considered as disclosed herein and fall within the scope of protection of the present invention.

Claims

1. A smelting equipment, characterized in that: The invention comprises a smelting furnace (14) and a sand collecting system, wherein the sand collecting system comprises a moving device (8) and a collecting bin (1) and a storage bin (12) arranged at intervals, wherein the collecting bin (1) comprises a shell, wherein a chamber (2) of the shell can accommodate and cool sand particles ejected from the smelting furnace (14), wherein the shell comprises an inlet (3) for the sand particles to enter the chamber (2) and an outlet for the sand particles to be discharged from the chamber (2) in an on-off manner, wherein the moving device can reciprocate between a loading position corresponding to the outlet and the storage bin (12) to transport the sand particles from the chamber to the storage bin (12), wherein the moving device can reciprocate between a loading position corresponding to the outlet and the storage bin (12) to transport the sand particles from the chamber to the storage bin (12). At the loading position, the inlet of the hopper (9) of the mobile device is located below the discharge port and on the movement trajectory of the sand particles discharged from the discharge port, so that the sand particles can automatically fall into the hopper (9) from the discharge port; the smelting furnace (14) is configured to spray the sand particles into the chamber (2) through the feed port (3); the chamber (2) can cool the sand particles and automatically discharge the sand particles into the hopper (9) of the mobile device located at the loading position through the discharge port; the mobile device (8) can transport the sand particles in the hopper (9) to the storage bin (12) for storage; The sand collecting system comprises at least two material collecting bins (1) arranged in a straight line, and the material inlets (3) of the at least two material collecting bins (1) are sequentially connected in the arrangement direction of the at least two material collecting bins (1); The inlet of the silo (9) is configured to be open upward, and a screening device (11) is provided at the inlet of the silo (9). The screening device (11) is configured to screen the sand particles falling into the inlet of the silo (9) to screen out sand particles with a qualified particle size, thereby allowing the sand particles with a qualified particle size to fall into the silo (9).

2. The smelting equipment according to claim 1, characterized in that The sand collecting system comprises a track (5), wherein the track (5) is arranged between the loading position and the unloading position corresponding to the storage bin (12) and is capable of guiding the moving device (8) to move along the extension direction of the track (5). At the unloading position, the bin (9) of the moving device is arranged adjacent to the storage port (13) of the storage bin (12).

3. The smelting equipment according to claim 2, characterized in that The sand collection system includes a control unit, wherein: A first position sensor (6) is provided on the track (5), the first position sensor (6) is provided at the loading position and is capable of detecting whether the moving device (8) has moved to the loading position, the control unit is electrically connected to the first position sensor (6) and the moving device (8) respectively and is capable of controlling the start and stop of the moving device (8) according to position information monitored by the first position sensor (6); and / or A second position sensor (7) is provided on the track (5), the second position sensor (7) is provided at the unloading position and is capable of detecting whether the moving device (8) has moved to the unloading position, the control unit is electrically connected to the second position sensor (7) and the moving device (8) respectively and is capable of controlling the start and stop of the moving device (8) according to the position information monitored by the second position sensor (7).

4. The smelting equipment according to claim 3, characterized in that When the track (5) is provided with a first position sensor (6), the housing is provided with a valve body (4) at the discharge port to connect or disconnect the discharge port, and the control unit can control the opening and closing of the valve body (4) according to the position information monitored by the first position sensor (6).

5. The smelting equipment according to claim 4, characterized in that The moving device (8) includes a meter (10), which is arranged at the bottom of the silo (9) and can measure the weight of the sand particles in the silo (9). The control unit is electrically connected to the meter (10) and the valve body (4) respectively and can control the opening and closing of the valve body (4) according to the weight information measured by the meter (10).

6. The smelting equipment according to claim 5, characterized in that The control unit is electrically connected to the screening device (11) and is capable of controlling the opening and closing of the screening device (11) according to the weight information.

7. The smelting equipment according to claim 1, characterized in that The receiving bin (1) is a rectangular parallelepiped structure, the bottom wall of the rectangular parallelepiped structure protrudes downward to form a square cone, and the discharge port is arranged at the bottom tip of the square cone; and / or The sand collecting system comprises a connecting track, which is connected to the track (5) and is arranged between the loading positions corresponding to the discharge ports of at least two of the collecting bins (1). The connecting track is arranged to guide the moving device to move along the extension direction of the connecting track, so that the moving device can move back and forth between the loading position corresponding to each of the collecting bins (1) and the track (5).

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