A calcining chamber for quartz sand and a high-temperature calcining furnace for quartz sand.

Abstract

This utility model relates to the technical field of quartz sand processing equipment, specifically a quartz sand roasting chamber and a quartz sand high-temperature roasting furnace, including an outer tube, an inner liner, and a fireproof box. The outer tube is rotatably installed inside the fireproof box, and the inner liner is located inside the outer tube. A cavity is provided between the outer tube and the inner liner. The two ends of the outer tube and the inner liner are fixedly connected. A resistance heating wire is spirally installed on the outer wall of the inner liner. The two ends of the inner liner are respectively provided with a feed inlet and a discharge outlet. A connecting column is fixedly installed at the end of the inner liner with the feed inlet. A driven pulley is fixedly installed on the side end of the connecting column. A first drive motor is fixedly installed on the side end of the fireproof box. A drive pulley is fixedly installed at the output end of the first drive motor. A belt connects the drive pulley and the driven pulley.

Description

Technical Field

[0001] This utility model relates to the technical field of quartz sand processing equipment, specifically to a quartz sand roasting chamber and a quartz sand high-temperature roasting furnace. Background Technology

[0002] In the production and processing of quartz sand, roasting is a crucial step. Its purpose is to remove organic matter, moisture, and other impurities from the quartz sand, thereby improving its purity and quality. Currently, in commonly used quartz sand roasting equipment, the roasting chamber is a core component, and its structural characteristics and performance directly determine the quality of the roasting effect. Traditional roasting equipment is mostly rotary kilns or static furnaces, which suffer from low thermal efficiency, poor temperature uniformity, and uneven heating of the quartz sand. To facilitate uniform heating of the quartz sand during roasting, we propose a quartz sand roasting chamber and a high-temperature quartz sand roasting furnace. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of this disclosure is to provide a calcination chamber for quartz sand and a high-temperature calcination furnace for quartz sand.

[0004] The objective of this disclosure can be achieved through the following technical solutions:

[0005] A calcination chamber for quartz sand includes an outer tube, an inner liner, and a fireproof box. The outer tube is rotatably installed inside the fireproof box, and the inner liner is located inside the outer tube. A cavity is provided between the outer tube and the inner liner. The two ends of the outer tube and the inner liner are fixedly connected. A resistance heating wire is spirally installed on the outer wall of the inner liner. An inlet and an outlet are respectively opened at both ends of the inner liner. A connecting column is fixedly installed at the end of the inner liner with the inlet. A driven pulley is fixedly installed on the side end of the connecting column. A first drive motor is fixedly installed on the side end of the fireproof box. A driving pulley is fixedly installed at the output end of the first drive motor. A belt connects the driving pulley and the driven pulley.

[0006] Furthermore, an air inlet is provided at the side end of the outer tube, which is connected to the interior of the cavity, and multiple micropores are evenly distributed at the side end of the inner liner tube to facilitate the passage of gas.

[0007] Furthermore, the inner wall of the fireproof box is provided with two sliding grooves, and two sliders are fixedly installed on the outer wall of the outer tube, the sliders being adapted to the sliding grooves.

[0008] Furthermore, both the inlet and outlet of the inner liner tube can be detachably fitted with sealing caps.

[0009] Furthermore, the fireproof box is installed on the upper end of the placement platform, and one end of the fireproof box is rotatably connected to the upper end of the placement platform.

[0010] Furthermore, an installation groove is provided at the upper end of the placement platform, and a threaded rod is installed in the installation groove. The threaded rod is rotatably connected to the placement platform. A second drive motor is fixedly installed at one end of the placement platform. The output end of the second drive motor is fixedly connected to one end of the threaded rod. A moving block is threadedly connected to the side end of the threaded rod. A connector is fixedly installed at the upper end of the moving block. A connector is fixedly installed at the lower end of the fireproof box. A support rod is connected between the moving block and the lower end of the fireproof box. Two connectors are rotatably connected to the two ends of the support rod.

[0011] Furthermore, the placement platform has limit slots on both sides of the mounting groove, and limit blocks are fixedly installed on both sides of the movable block, with the limit blocks matching the limit slots.

[0012] A high-temperature calcining furnace for quartz sand, comprising the aforementioned high-temperature calcining furnace for quartz sand.

[0013] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows:

[0014] Fixed connection: refers to a connection in which parts or components are fixed in place and there is no relative movement. It is divided into two types: detachable connection and non-detachable connection.

[0015] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0016] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0017] The beneficial effects of this disclosure are as follows: When using the device, quartz sand is first put into the inner liner tube through the feed port. The heating zone temperature is set to 800-1200℃ by the resistance heating wire, and nitrogen gas is introduced for protection. Then, the first drive motor is started. After the first drive motor starts, it will drive the active pulley to rotate, which in turn drives the driven pulley to rotate, thereby driving the inner liner tube and the outer tube to rotate together, so that the quartz sand in the inner liner tube is heated evenly. After calcination, it is discharged from the discharge port. The spiral heating wire and the rotation design realize three-dimensional uniform heating of the quartz sand. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall device according to an embodiment of the present invention;

[0020] Figure 2 This is a cross-sectional view of the overall device according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the placement platform according to an embodiment of this utility model.

[0022] Reference numerals: 1. Outer tube; 2. Inner liner; 3. Fireproof box; 4. Cavity; 5. Resistance heating wire; 6. Inlet; 7. Outlet; 8. Connecting column; 9. Driven pulley; 10. First drive motor; 11. Drive pulley; 12. Belt; 13. Air inlet; 14. Micro-hole; 15. Slide groove; 16. Slider; 17. Sealing cover; 18. Placement platform; 19. Mounting groove; 20. Threaded rod; 21. Second drive motor; 22. Moving block; 23. Connecting piece; 24. Support rod; 25. Limiting groove; 26. Limiting block. Detailed Implementation

[0023] The technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments of this disclosure, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this disclosure.

[0024] A calcination chamber for quartz sand, such as Figures 1-3As shown, the device includes an outer tube 1, an inner liner 2, and a fireproof box 3. The outer tube 1 is rotatably installed inside the fireproof box 3. The inner liner 2 is located inside the outer tube 1. A cavity 4 is provided between the outer tube 1 and the inner liner 2. The two ends of the outer tube 1 and the inner liner 2 are fixedly connected. A resistance heating wire 5 is spirally installed on the outer wall of the inner liner 2. The two ends of the inner liner 2 are respectively provided with an inlet 6 and an outlet 7. A connecting post 8 is fixedly installed at the end of the inner liner 2 with the inlet 6. A driven pulley 9 is fixedly installed on the side end of the connecting post 8. A first drive motor 10 is fixedly installed on the side end of the fireproof box 3. A drive pulley 11 is fixedly installed at the output end of the first drive motor 10. A belt 12 connects the drive pulley 11 and the driven pulley 9. In use, first, put the quartz sand into the inner liner tube 2 through the feed port 6. Set the heating zone temperature to 800-1200℃ using the resistance heating wire 5 and introduce nitrogen for protection. Then, start the first drive motor 10. After the first drive motor 10 starts, it will drive the drive pulley 11 to rotate, which in turn drives the driven pulley 9 to rotate, thereby driving the inner liner tube 2 and the outer tube 1 to rotate together, so that the quartz sand in the inner liner tube 2 is heated evenly. After calcination, it is discharged from the discharge port 7.

[0025] It should be noted that the outer tube 1 is made of high-temperature resistant stainless steel or nickel-based alloy, and the outer wall is covered with a ceramic fiber heat insulation layer; the inner liner tube 2 is nested inside the outer tube 1 and is made of high-purity alumina or silicon carbide ceramic material, with a smooth inner surface to reduce the adhesion of quartz sand.

[0026] In a preferred embodiment of this invention, an air inlet 13 is provided on the side end of the outer tube 1, and the air inlet 13 communicates with the interior of the cavity 4. Multiple micropores 14 are evenly distributed on the side end of the inner liner tube 2 to facilitate gas passage. The air inlet 13 is provided to facilitate the introduction of inert gas or reactive gas into the cavity 4, and the micropores 14 on the side wall of the inner liner tube 2 allow for uniform gas diffusion.

[0027] In a preferred embodiment of this invention, the inner wall of the fireproof box 3 is provided with two sliding grooves 15, and two sliders 16 are fixedly installed on the outer wall of the outer tube 1, the sliders 16 being adapted to the sliding grooves 15. The sliders 16 and sliding grooves 15 are designed to facilitate the rotation of the outer tube 1 and the inner lining tube 2 together with the driven rotation, thereby ensuring that the quartz sand inside the inner lining tube 2 is dynamically heated.

[0028] As a preferred embodiment of this utility model, both the inlet 6 and outlet 7 of the inner liner tube 2 are detachably equipped with sealing caps 17. The sealing caps 17 are provided to ensure that the interior of the inner liner tube 2 is sealed.

[0029] In a preferred embodiment of this utility model, the fireproof box 3 is installed on the upper end of the placement platform 18, and one end of the fireproof box 3 is rotatably connected to the upper end of the placement platform 18. The rotatable connection between one end of the fireproof box 3 and the placement platform 18 allows the other end of the fireproof box 3 to rotate around the placement platform 18, thus facilitating the lifting of the fireproof box 3.

[0030] In a preferred embodiment of this utility model, the upper end of the placement platform 18 is provided with an installation groove 19, and a threaded rod 20 is installed in the installation groove 19. The threaded rod 20 is rotatably connected to the placement platform 18. A second drive motor 21 is fixedly installed at one end of the placement platform 18, and the output end of the second drive motor is fixedly connected to one end of the threaded rod 20. A moving block 22 is threadedly connected to the side end of the threaded rod 20. A connector 23 is fixedly installed at the upper end of the moving block 22, and a connector 23 is fixedly installed at the lower end of the fireproof box 3. A support rod 24 is connected between the moving block 22 and the lower end of the fireproof box, and two connectors 23 are rotatably connected to the two ends of the support rod 24 respectively. After the second drive motor 21 is started, it will drive the threaded rod 20 to rotate. The rotation of the threaded rod 20 will drive the moving block 22 to move, thereby driving the support rod 24 to lift the fireproof box 3, so that the fireproof box 3 is tilted, which facilitates the quartz sand in the inner lining tube 2 to slide out from the outlet.

[0031] In a preferred embodiment of this invention, the placement platform 18 has limit grooves 25 on both sides of the mounting groove 19, and limit blocks 26 are fixedly installed on both sides of the movable block 22, with the limit blocks 26 matching the limit grooves 25. The limit blocks 26 and limit grooves 25 are provided to limit the movable block 22, ensuring that after the threaded rod 20 rotates, the movable block 22 can only move linearly within the mounting groove 19.

[0032] A high-temperature calcining furnace for quartz sand, comprising the aforementioned high-temperature calcining furnace for quartz sand.

[0033] Working principle and usage process of this utility model:

[0034] Quartz sand is fed into the inner lining tube 2 through the inlet 6. The heating zone temperature is set to 800-1200℃, and nitrogen gas is introduced for protection. Then, the first drive motor 10 is started. After the first drive motor 10 starts, it drives the drive pulley 11 to rotate, which in turn drives the driven pulley 9 to rotate, thereby causing the inner lining tube 2 and the outer tube 1 to rotate together, so that the quartz sand in the inner lining tube 2 is heated evenly. After calcination, it is discharged from the outlet 7. During the discharge process, the second drive motor 21 drives the threaded rod 20 to rotate, which in turn drives the moving block 22 to move, lifting the fireproof box 3 so that the fireproof box 3 is tilted at a certain angle, so that the quartz sand in the inner lining tube 2 can flow out from the outlet 7.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this disclosure. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this disclosure. Those skilled in the art should understand that this disclosure is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this disclosure. Various changes and modifications can be made to this disclosure without departing from its spirit and scope, and all such changes and modifications fall within the scope of this disclosure as claimed.

Claims

1. A calcination chamber for quartz sand, characterized in that, The device includes an outer tube (1), an inner liner (2), and a fireproof box (3). The outer tube (1) is rotatably installed inside the fireproof box (3). The inner liner (2) is located inside the outer tube (1). A cavity (4) is provided between the outer tube (1) and the inner liner (2). The two ends of the outer tube (1) and the inner liner (2) are fixedly connected. The outer wall of the inner liner (2) is spirally fitted with a resistance heating wire (5). The two ends of the inner liner (2) are respectively provided with a feed inlet (6) and a discharge outlet (7). A connecting column (8) is fixedly installed at one end of the inner liner (2) with the feed inlet (6). A driven pulley (9) is fixedly installed on the side end of the connecting column (8). A first drive motor (10) is fixedly installed on the side end of the fireproof box (3). A drive pulley (11) is fixedly installed at the output end of the first drive motor (10). A belt (12) is connected between the drive pulley (11) and the driven pulley (9).

2. The calcination chamber for quartz sand according to claim 1, characterized in that, The outer tube (1) has an air inlet (13) at its side end, which is connected to the cavity (4). The inner liner tube (2) has a number of micropores (14) evenly distributed at its side end to facilitate gas passage.

3. The calcination chamber for quartz sand according to claim 1, characterized in that, The inner wall of the fireproof box (3) is provided with two sliding grooves (15), and two sliders (16) are fixedly installed on the outer wall of the outer tube (1). The sliders (16) are adapted to the sliding grooves (15).

4. The calcination chamber for quartz sand according to claim 1, characterized in that, The inlet (6) and outlet (7) of the inner liner tube (2) can be detachably fitted with sealing caps (17).

5. The calcination chamber for quartz sand according to claim 1, characterized in that, The fireproof box (3) is installed on the upper end of the placement platform (18), and one end of the fireproof box (3) is rotatably connected to the upper end of the placement platform (18).

6. The calcination chamber for quartz sand according to claim 5, characterized in that, The upper end of the placement platform (18) is provided with an installation groove (19), and a threaded rod (20) is installed in the installation groove (19). The threaded rod (20) is rotatably connected to the placement platform (18). A second drive motor (21) is fixedly installed at one end of the placement platform (18). The output end of the second drive motor (21) is fixedly connected to one end of the threaded rod (20). A moving block (22) is threadedly connected to the side end of the threaded rod (20). A connector (23) is fixedly installed at the upper end of the moving block (22). A connector (23) is fixedly installed at the lower end of the fireproof box (3). A support rod (24) is connected between the moving block (22) and the lower end of the fireproof box (3). The two ends of the support rod (24) are rotatably connected to the two connectors (23) respectively.

7. The calcination chamber for quartz sand according to claim 6, characterized in that, The placement platform (18) has limit grooves (25) on both sides of the mounting groove (19), and the moving block (22) has limit blocks (26) fixedly installed on both sides, and the limit blocks (26) are adapted to the limit grooves (25).

8. A high-temperature calcining furnace for quartz sand, characterized in that, The high-temperature calcining furnace for quartz sand includes a calcining chamber tube for quartz sand as described in any one of claims 1 to 7.

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