Fully enclosed feeding and unloading device

Abstract

This fully enclosed feeding and unloading device relates to the field of unloading device technology. It includes a primary cooling silo, a secondary cooling silo, and an unloading silo connected sequentially from top to bottom. A top gate valve connects the primary and secondary cooling silos, and a bottom gate valve connects the secondary cooling silo and the unloading silo. A unloading disc is oscillatingly installed at the lower end of the unloading silo, and a scraping structure with frictional contact with its inner wall is rotatably installed inside the unloading silo. This invention overcomes the problem in traditional technology where the sealing between the cooling silo and the unloading silo cannot be guaranteed during the unloading and cooling of reducing slag, which easily affects the cooling efficiency of the reducing slag in the cooling silo during unloading.

Description

Technical Field

[0001] This utility model relates to the technical field of unloading devices, specifically to a fully enclosed feeding and unloading device. Background Technology

[0002] The main production process for magnesium smelting is the vacuum silicothermic process. The most important step in this process is the reduction reaction, which involves forming raw materials into pellets and placing them in a high-temperature resistant stainless steel container. The pellets are then subjected to a reduction reaction under high-temperature vacuum conditions to produce crude magnesium. The production process for magnesium requires a high temperature of 1200℃. Currently, the reduction slag containing a large amount of heat generated in the magnesium production process needs to be cooled and discharged.

[0003] A patent with publication number CN208055429U is disclosed in the prior art. This solution can shorten the reduction time, reduce production costs, and improve the life of the tank. The provided technical solution is: a novel sealing and unloading device for a vertical reduction tank in magnesium smelting. The vertical reduction tank has a bottom-open structure, and the sealing and unloading device is set at the bottom of the vertical reduction tank. The sealing and unloading device has a connecting rod structure and uses a sealing and unloading plate as a sealing bottom plate. This can effectively improve the reduction efficiency of magnesium smelting, reduce production costs and labor costs. This utility model can be widely used in the magnesium smelting industry.

[0004] The shortcomings of existing technology have gradually become apparent with use, mainly in the following aspects:

[0005] First, when the reducing slag after magnesium smelting is unloaded and cooled, the sealing between the cooling silo and the unloading silo cannot be guaranteed, which makes it easy to affect the cooling efficiency of the reducing slag in the cooling silo when unloading.

[0006] Secondly, when the cooled reduction slag enters the unloading hopper for temporary storage, the reduction slag tends to adhere to the inner wall of the unloading hopper, which in turn affects the smoothness of the reduction slag unloading.

[0007] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0008] To address the shortcomings of existing technologies, this utility model provides a fully enclosed feeding and unloading device to solve the problem that in traditional technologies, the sealing between the cooling silo and the unloading silo cannot be guaranteed during the unloading and cooling of reducing slag, which makes it easy to affect the cooling efficiency of the reducing slag in the cooling silo during unloading.

[0009] To achieve the above objectives, this utility model provides the following technical solution:

[0010] The fully enclosed feeding and unloading device includes a primary cooling silo, a secondary cooling silo, and an unloading silo that are connected sequentially from top to bottom.

[0011] A top gate valve connects the primary cooling silo and the secondary cooling silo, and a bottom gate valve connects the secondary cooling silo and the unloading silo. A unloading disc is oscillatingly installed at the lower port of the unloading silo.

[0012] The unloading hopper is equipped with a scraping structure that rotates and rubs against its inner wall.

[0013] As an optimized solution, the unloading hopper includes a vertically arranged straight cylindrical section, the upper end of which is fixedly connected to an upper conical section that tapers upwards, and the lower end of which is fixedly connected to a lower conical section that tapers downwards.

[0014] As an optimized solution, the scraping structure includes an upper rotating ring, a middle rotating ring, and a lower rotating ring that are rotatably mounted side by side on the straight section from top to bottom. A plurality of vertically arranged upper scrapers are arranged between the opposite end faces of the upper rotating ring and the middle rotating ring, and the side walls of the upper scrapers are in frictional contact with the inner wall of the straight section.

[0015] As an optimized solution, the scraping structure includes a plurality of vertically arranged lower scrapers fixed between the opposite end faces of the intermediate rotating ring and the lower rotating ring, and the sidewalls of the lower scrapers are in frictional contact with the inner wall of the straight cylinder section.

[0016] As an optimized solution, the scraping structure includes an upper conical rotating ring rotatably installed inside the upper conical section, and a plurality of inclined upper scrapers are arranged between the upper conical rotating ring and the opposite end face of the upper rotating ring, and the side wall of the upper scraper is in frictional contact with the inner wall of the upper conical section.

[0017] As an optimized solution, the scraping structure includes a lower conical rotating ring rotatably installed inside the lower conical section, and a plurality of inclined lower scrapers are arranged between the opposite end faces of the lower conical rotating ring and the lower rotating ring, and the side walls of the lower scrapers are in frictional contact with the inner wall of the lower conical section.

[0018] As an optimized solution, a flange is fixedly connected to the lower end of the unloading bin, and one end of the unloading disc is hinged to the side wall of the flange using a hinge assembly.

[0019] As an optimized solution, a telescopic cylinder is hinged to the outer wall of the unloading hopper, and the telescopic end of the telescopic cylinder is hinged to the lower surface of the unloading disc.

[0020] As an optimized solution, a bottom hinge seat is fixedly connected to the lower surface of the unloading disc near the hinge assembly, and the bottom hinge seat is hinged to the telescopic end of the telescopic cylinder.

[0021] As an optimized solution, a top hinge seat is fixedly connected to the outer wall of the unloading hopper, and the top hinge seat is hinged to the cylinder end of the telescopic cylinder.

[0022] As an optimized solution, the outer ring of the transfer ring is fixedly connected to a toothed ring, the inner wall of the straight section is provided with an annular groove that mates with the toothed ring, the outer wall of the straight section is fixedly connected to a drive motor, the output shaft of the drive motor is fixedly connected to a gear, the straight section is provided with a clearance hole that communicates with the annular groove, the gear passes through the clearance hole and meshes with the toothed ring.

[0023] Compared with the prior art, the beneficial effects of this utility model are:

[0024] By sequentially configuring a primary cooling silo, a secondary cooling silo, and a discharge silo from top to bottom, the reducing slag is cooled in a step-by-step manner through two cooling silos. After secondary cooling, the reducing slag falls into the discharge silo. A gate valve is installed between each pair of silos to allow for the switching of flow between adjacent silos, ensuring a seal and preventing interference with the operation of other silos.

[0025] The drive motor rotates the intermediate rotating ring, which in turn drives the upper rotating ring, lower rotating ring, upper conical rotating ring, and lower conical rotating ring that are fixed to each other. This, in turn, drives the upper scraper, lower scraper, upper inclined scraper, and lower inclined scraper to rotate, achieving frictional contact with the inner wall of the unloading hopper. This effectively prevents the reducing residue from adhering to the inner wall of the unloading hopper. The telescopic cylinder drives the unloading disc to swing, opening the discharge port of the unloading hopper. Combined with the rotating scraping structure, this allows for the rapid discharge of materials from the unloading hopper, making the process convenient and quick. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the scraping structure of this utility model.

[0029] In the diagram: 1-Primary cooling silo, 2-Secondary cooling silo, 3-Unloading silo, 4-Unloading disc; 5-Top slide gate valve, 6-Bottom slide gate valve; 7-Straight section; 8-Upper conical section; 9-Lower conical section; 10-Upper rotating ring; 11-Lower rotating ring; 12-Middle rotating ring; 13-Gear ring; 14-Drive motor; 15-Gear; 16-Upper conical rotating ring; 17-Lower conical rotating ring; 18-Upper scraper; 19-Lower scraper; 20-Upper inclined scraper; 21-Lower inclined scraper; 22-Telescopic cylinder. Detailed Implementation

[0030] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0031] like Figure 1 and Figure 2 As shown, the fully enclosed feeding and unloading device includes a primary cooling silo 1, a secondary cooling silo 2, and an unloading silo 3 connected sequentially from top to bottom; water-cooled coils are installed inside the primary cooling silo 1 and the secondary cooling silo 2.

[0032] A top gate valve 5 connects the primary cooling silo 1 and the secondary cooling silo 2, and a bottom gate valve 6 connects the secondary cooling silo 2 and the unloading silo 3. A unloading disc 4 is oscillatingly installed at the lower port of the unloading silo 3.

[0033] The unloading bin 3 has a rotating scraping structure that rubs against its inner wall.

[0034] The unloading bin 3 includes a vertically arranged straight cylindrical section 7, with an upper conical section 8 that tapers upwards at the upper end of the straight cylindrical section 7, and a lower conical section 9 that tapers downwards at the lower end of the straight cylindrical section 7.

[0035] The scraping structure includes an upper rotating ring 10, a middle rotating ring 12, and a lower rotating ring 11 that are rotatably mounted side by side on the straight section 7 from top to bottom. Several vertically arranged upper scrapers 18 are arranged between the opposite end faces of the upper rotating ring 10 and the middle rotating ring 12. The side walls of the upper scrapers 18 are in frictional contact with the inner wall of the straight section 7.

[0036] The scraping structure includes several vertically arranged lower scrapers 19 fixed between the opposite end faces of the intermediate rotating ring 12 and the lower rotating ring 11, and the side wall of the lower scraper 19 is in frictional contact with the inner wall of the straight cylinder section 7.

[0037] The scraping structure includes an upper conical rotating ring 16 rotatably installed inside the upper conical section 8. Several inclined upper scraper blades 20 are arranged between the opposite end faces of the upper conical rotating ring 16 and the upper rotating ring 10. The side walls of the upper scraper blades 20 are in frictional contact with the inner wall of the upper conical section 8.

[0038] The scraping structure includes a lower conical rotating ring 17 rotatably installed in the lower conical section 9. A plurality of inclined lower scraper blades 21 are arranged between the opposite end faces of the lower conical rotating ring 17 and the lower rotating ring 11. The side wall of the lower scraper blades 21 is in frictional contact with the inner wall of the lower conical section 9.

[0039] A flange is fixed to the lower end of the unloading bin 3, and one end of the unloading plate 4 is hinged to the side wall of the flange using a hinge assembly.

[0040] A telescopic cylinder 22 is hinged to the outer wall of the unloading bin 3, and the telescopic end of the telescopic cylinder 22 is hinged to the lower surface of the unloading disc 4.

[0041] A bottom hinge seat is fixedly connected to the lower surface of the unloading disc 4 near the hinge assembly. The bottom hinge seat is hinged to the telescopic end of the telescopic cylinder 22.

[0042] A top hinge seat is fixed to the outer wall of the unloading hopper 3, and the top hinge seat is hinged to the cylinder end of the telescopic cylinder 22.

[0043] A gear ring 13 is fixedly connected to the outer ring of the transfer ring 12. A ring groove that mates with the gear ring 13 is opened on the inner wall of the straight section 7. A drive motor 14 is fixedly connected to the outer wall of the straight section 7. A gear 15 is fixedly connected to the output shaft of the drive motor 14. A clearance hole that communicates with the ring groove is opened on the straight section 7. The gear 15 passes through the clearance hole and meshes with the gear ring 13.

[0044] The working principle of this device is as follows:

[0045] By sequentially configuring a primary cooling silo 1, a secondary cooling silo 2, and a discharge silo 3 from top to bottom, the reducing slag is cooled in a step-by-step manner through the two cooling silos. After secondary cooling, the reducing slag falls into the discharge silo 3. A gate valve is installed between each pair of silos to allow for the switching of flow between adjacent silos, achieving a seal and preventing interference with the operation of other silos.

[0046] The drive motor 14 drives the intermediate ring 12 to rotate. The rotation of the intermediate ring 12 drives the upper rotating ring 10, lower rotating ring 11, upper conical rotating ring 16, and lower conical rotating ring 17, which are fixed to each other. In turn, the upper scraper 18, lower scraper 19, upper inclined scraper 20, and lower inclined scraper 21 rotate, achieving frictional contact with the inner wall of the unloading bin 3. This can effectively prevent the reducing residue from adhering to the inner wall of the unloading bin 3. The telescopic cylinder 22 drives the unloading disc 4 to swing, thereby opening the discharge port of the unloading bin 3. With the help of the rotating scraping structure, the material is quickly discharged from the unloading bin 3, which is convenient and fast.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A fully closed charging and slagging device, characterized in that: It includes a primary cooling silo (1), a secondary cooling silo (2), and an unloading silo (3) that are connected from top to bottom. A top gate valve (5) connects the primary cooling silo (1) and the secondary cooling silo (2), and a bottom gate valve (6) connects the secondary cooling silo (2) and the unloading silo (3). A unloading disc (4) is oscillatingly installed at the lower port of the unloading silo (3). The unloading bin (3) is equipped with a scraping structure that rubs against its inner wall.

2. The fully-closed charging and discharging device according to claim 1, characterized in that: The unloading hopper (3) includes a vertically arranged straight cylindrical section (7), the upper end of which is fixedly connected to an upper conical section (8) that is gradually tapered upwards, and the lower end of which is fixedly connected to a lower conical section (9) that is gradually tapered downwards.

3. The fully-closed charging and discharging device according to claim 2, characterized in that: The scraping structure includes an upper rotating ring (10), a middle rotating ring (12), and a lower rotating ring (11) that are rotatably mounted side by side on the straight section (7) from top to bottom. A plurality of vertically arranged upper scrapers (18) are arranged between the opposite end faces of the upper rotating ring (10) and the middle rotating ring (12). The side wall of the upper scraper (18) is in frictional contact with the inner wall of the straight section (7).

4. The fully-closed charging and discharging device according to claim 3, characterized in that: The scraping structure includes a plurality of vertically arranged lower scrapers (19) fixed between the opposite end faces of the intermediate rotating ring (12) and the lower rotating ring (11), and the side wall of the lower scraper (19) is in frictional contact with the inner wall of the straight section (7).

5. The fully enclosed feeding and unloading device according to claim 4, characterized in that: The scraping structure includes an upper conical rotating ring (16) rotatably installed in the upper conical section (8). A plurality of inclined upper scrapers (20) are arranged between the opposite end faces of the upper conical rotating ring (16) and the upper rotating ring (10). The side wall of the upper scraper (20) is in frictional contact with the inner wall of the upper conical section (8).

6. The fully-closed charging and discharging device according to claim 5, characterized in that: The scraping structure includes a lower conical rotating ring (17) rotatably installed in the lower conical section (9). A plurality of inclined lower scrapers (21) are arranged between the opposite end faces of the lower conical rotating ring (17) and the lower rotating ring (11). The side wall of the lower scraper (21) is in frictional contact with the inner wall of the lower conical section (9).

7. The fully-closed charging and discharging device according to claim 6, characterized in that: The lower end of the unloading bin (3) is fixedly connected to a flange, and one end of the unloading disc (4) is hinged to the side wall of the flange using a hinge assembly.

8. The fully-closed charging and discharging device according to claim 7, characterized in that: A telescopic cylinder (22) is hinged to the outer wall of the unloading bin (3), and the telescopic end of the telescopic cylinder (22) is hinged to the lower surface of the unloading disc (4).

9. The fully-closed charging and discharging device according to claim 8, characterized in that: The unloading disc (4) has a bottom hinge seat fixedly connected to the lower surface of the hinge assembly, and the bottom hinge seat is hinged to the telescopic end of the telescopic cylinder (22).

10. The fully-closed charging and discharging device according to claim 9, characterized in that: A top hinge seat is fixed to the outer wall of the unloading bin (3), and the top hinge seat is hinged to the cylinder end of the telescopic cylinder (22).

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