Waste heat utilization device in red mud gallium or lithium extraction process

Abstract

The utility model relates to a waste heat utilization device in the extraction process of gallium or lithium in red mud, and aims to solve the technical problems that an outer cover and a waste heat recovery device are fixed at present, a heat exchange pipe in the waste heat recovery device is inconvenient to clean, and the heat exchange effect is influenced after a long time, the waste heat utilization device comprises box bodies, the heat exchange pipe is arranged between the two box bodies, and the waste heat utilization device further comprises a U-shaped cover A and a U-shaped cover B; the U-shaped cover A and the U-shaped cover B are butted and sleeved at the heat exchange tube; the butt joint sides of the tops of the U-shaped cover A and the U-shaped cover B are connected through a fixing structure. The fixing structure comprises a connecting plate; the two connecting plates are fixedly arranged outside the butt joint sides of the tops of the U-shaped cover A and the U-shaped cover B respectively; the heat exchanger has the advantages that the U-shaped cover A and the U-shaped cover B can be detached, the heat exchange tubes are exposed, and the exposed heat exchange tubes can be cleaned conveniently.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and utilization technology, and in particular to a waste heat utilization device in the process of gallium or lithium extraction from red mud. Background Technology

[0002] During the extraction of gallium or lithium from red mud, heat is generated. This heat is recovered and reused through a waste heat recovery device.

[0003] The waste heat recovery device is covered by a section containing hot liquid. After heating the air, the hot air is carried away for reuse. Typically, the outer casing is fixed to the waste heat recovery device, making it difficult to clean the internal heat exchange tubes, which affects the heat exchange efficiency over time.

[0004] In view of this, we propose a waste heat utilization device in the gallium or lithium extraction process from red mud. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a waste heat utilization device in the process of gallium or lithium extraction from red mud, so as to solve the technical problem that the current outer cover and waste heat recovery device are fixed, making it inconvenient to clean the internal heat exchange tubes, which affects the heat exchange effect over time.

[0006] To achieve the purpose of this utility model, the technical solution adopted by this utility model is as follows: design a waste heat utilization device in the process of gallium or lithium extraction from red mud, including a box, a heat exchange tube arranged between two boxes, and also including a U-shaped cover A and a U-shaped cover B;

[0007] U-shaped covers A and B are fitted together at the heat exchange tube;

[0008] The top mating sides of the U-shaped cover A and U-shaped cover B are connected by a fixed structure;

[0009] The fixing structure includes a connecting plate;

[0010] Two connecting plates are respectively fixed to the outside of the top mating side of the U-shaped cover A and U-shaped cover B;

[0011] The two connecting plates are fixedly connected by bolts and nuts.

[0012] Preferably, a screw is rotatably connected to both ends of one of the connecting plates, and a longitudinal section of an L-shaped block is threaded onto the screw. The transverse section of the L-shaped block is limited and engaged with the end of the other connecting plate, and a rotating handle is fixed to the outer end of the screw.

[0013] The L-shaped block has two guide rods symmetrically inserted through its longitudinal section, and the inner ends of the two guide rods are respectively fixedly connected to the end of one of the connecting plates.

[0014] Preferably, U-shaped clips A and B are fixedly provided on the inner walls of the outer ends of the U-shaped cover A and U-shaped cover B, respectively. The U-shaped clips A and U-shaped clips B correspond to each other. A card frame is sleeved on the box body. The U-shaped clips A and U-shaped clips B are inserted into the slots on the card frame.

[0015] Preferably, the top sides of the U-shaped cover A and U-shaped cover B are respectively connected to the tops of the two boxes via guide structures;

[0016] The guiding structure includes guide bars;

[0017] The guide bar is fixed to the top of the housing;

[0018] The top sides of the U-shaped cover A and U-shaped cover B are respectively fixed with a locking block, and the hole on the locking block is fitted with the guide strip.

[0019] Preferably, the end of the guide strip is trapezoidal.

[0020] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0021] 1. This utility model, by setting up U-shaped cover A, U-shaped cover B and connecting plate, has the advantages of being able to detach U-shaped cover A and U-shaped cover B to expose the heat exchange tubes, which facilitates cleaning of the exposed heat exchange tubes. It solves the problem that the outer cover is fixed to the waste heat recovery device, making it difficult to clean the internal heat exchange tubes, which affects the heat exchange effect over time.

[0022] 2. This utility model, by setting a screw, an L-shaped block, a rotating handle, and a guide rod, has the advantage of initial positioning when the U-shaped cover A and U-shaped cover B are initially connected and the two connecting plates are in contact, which facilitates the subsequent installation of bolts and nuts.

[0023] 3. This utility model, by setting U-shaped clips A, U-shaped clips B and a clip frame, has the advantages that when installing U-shaped covers A and B, the U-shaped clips A and B are limited by the docking with the clip frame, and the docking of U-shaped clips A and B with the clip frame also plays a sealing role.

[0024] 4. This utility model has the advantage of providing guide strips and locking blocks during the installation of U-shaped cover A and U-shaped cover B, by guiding the U-shaped locking strips A and B through the insertion of the guide strips and locking blocks, so that the U-shaped locking strips A and B can be accurately aligned with the locking frame. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the connection structure between the housing and the heat exchange tubes of this utility model;

[0027] Figure 3 This is a schematic diagram of the connection structure between the U-shaped cover A and the U-shaped cover B of this utility model;

[0028] Figure 4 For the present utility model Figure 3 Enlarged view of point A;

[0029] Figure 5 This is a schematic diagram of the guiding structure of this utility model;

[0030] In the diagram: 1. Box body; 2. U-shaped cover A; 3. U-shaped cover B; 4. Fixing structure; 5. Guiding structure; 6. Heat exchange tube; 7. Clip frame; 8. U-shaped clip B; 9. U-shaped clip A;

[0031] 401. Connecting plate; 402. Screw; 403. L-shaped block; 404. Rotary handle; 405. Guide rod;

[0032] 501, Card block; 502, Guide bar. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0034] Example 1: A waste heat utilization device in the gallium or lithium extraction process from red mud, see [link to example]. Figures 1 to 5 It includes a housing 1, on which a connector pipe is provided, and a heat exchange pipe 6 is arranged between two housings 1. It also includes a U-shaped cover A2 and a U-shaped cover B3; the U-shaped cover A2 and the U-shaped cover B3 are fitted together at the heat exchange pipe 6; wherein, the top mating sides of the U-shaped cover A2 and the U-shaped cover B3 are connected by a fixing structure 4.

[0035] The fixed structure 4 includes a connecting plate 401; two connecting plates 401 are respectively fixed to the outside of the top mating side of the U-shaped cover A2 and the U-shaped cover B3; the U-shaped cover A2 and the U-shaped cover B3 are respectively provided with a connector tube; wherein, the two connecting plates 401 are fixedly connected by bolts and nuts, the bolts pass through the holes on the connecting plates 401, and the nuts are screwed on one end of the bolts passing through the connecting plates 401.

[0036] This utility model, by setting up U-shaped cover A2, U-shaped cover B3 and connecting plate 401, has the advantages of being able to detach U-shaped cover A2 and U-shaped cover B3 to expose the heat exchange tube 6, which makes it easy to clean the exposed heat exchange tube 6. It solves the problem that the outer cover is fixed to the waste heat recovery device, making it difficult to clean the internal heat exchange tube 6, which affects the heat exchange effect over time.

[0037] Specifically, a connecting plate 401 has screws 402 rotatably connected to both ends. The screws 402 are threaded with the longitudinal section of an L-shaped block 403. The transverse section of the L-shaped block 403 is limited and matched with the end of another connecting plate 401. A rotating handle 404 is fixedly provided at the outer end of the screws 402. Two guide rods 405 are symmetrically inserted through the longitudinal section of the L-shaped block 403. The inner ends of the two guide rods 405 are fixedly connected to the end of a connecting plate 401. The longitudinal section of the L-shaped block 403 remains stable when it moves along the guide rods 405.

[0038] This utility model, by setting up a screw 402, an L-shaped block 403, a rotating handle 404 and a guide rod 405, has the advantage of initial positioning when the U-shaped cover A2 and the U-shaped cover B3 are initially connected and the two connecting plates 401 are in contact, which facilitates the subsequent installation of bolts and nuts.

[0039] Furthermore, U-shaped clips A9 and B8 are respectively fixed on the inner walls of the outer ends of U-shaped covers A2 and B3, with corresponding U-shaped clips A9 and B8. A clip frame 7 is sleeved on the box body 1, and U-shaped clips A9 and B8 are inserted into the slots on the clip frame 7.

[0040] This utility model, by setting U-shaped clips A9, U-shaped clips B8 and clip frame 7, has the advantages that when installing U-shaped covers A2 and B3, the U-shaped clips A9 and B8 are limited by the docking with the clip frame 7, and the docking of U-shaped clips A9 and B8 with the clip frame 7 also plays a sealing role.

[0041] Furthermore, the top sides of U-shaped covers A2 and B3 are respectively connected to the top of the two boxes 1 via guide structures 5;

[0042] The guide structure 5 includes a guide bar 502; the guide bar 502 is fixed to the top of the housing 1; wherein, the side ends of the top of the U-shaped cover A2 and the U-shaped cover B3 are respectively fixed with a locking block 501, and the hole on the locking block 501 is fitted with the guide bar 502.

[0043] This utility model, by setting guide strips 502 and locking blocks 501, has the advantage that when installing U-shaped covers A2 and B3, the guide strips 502 and locking blocks 501 are used for guidance, so that U-shaped locking strips A9 and B8 can be accurately connected with the locking frame 7.

[0044] It is worth noting that the end of the guide bar 502 is designed in a trapezoidal shape, so that the end of the guide bar 502 can pass through the hole of the locking block 501.

[0045] Working principle: Using the device of this utility model, U-shaped covers A2 and B3 are installed, with the locking block 501 passing through the guide bar 502 until U-shaped covers A2 and B3 are aligned. U-shaped locking strips A9 and B8 align with the grooves on the frame 7. Then, the handle 404 is rotated, and the screw 402 rotates, causing the longitudinal section of the L-shaped block 403 to move along the guide rod 405 until the transverse section of the L-shaped block 403 is stopped at the end of another connecting plate 401. The bolt passes through the hole on the connecting plate 401, and a nut is tightened onto one end of the bolt. Hot liquid enters from one box 1, flows through the heat exchange tube 6, and is discharged from the other box 1 after heat exchange. The joint pipes on U-shaped covers A2 and B3 are connected to the air duct for ventilation, allowing the heat to be recovered and reused. When cleaning the heat exchange tube 6, remove the bolts and nuts, and rotate the handle 404 in the opposite direction until the transverse section of the L-shaped block 403 separates from the end of the other connecting plate 401. Then, remove the U-shaped cover A2 and U-shaped cover B3 respectively to clean the exposed heat exchange tube 6.

[0046] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A waste heat utilization device in the gallium or lithium extraction process of red mud, comprising a housing (1), wherein a heat exchange tube (6) is arranged between two said housings (1), characterized in that, Also includes: U-shaped covers A (2) and B (3) are fitted together at the heat exchange tube (6); The top mating sides of the U-shaped cover A (2) and the U-shaped cover B (3) are connected by a fixing structure (4); The fixing structure (4) includes: Two connecting plates (401) are respectively fixed to the outside of the top mating side of the U-shaped cover A (2) and the U-shaped cover B (3); The two connecting plates (401) are fixedly connected by bolts and nuts.

2. The waste heat utilization device in the gallium or lithium extraction process of red mud as described in claim 1, characterized in that, One of the connecting plates (401) is rotatably connected to both ends of a screw (402), and the screw (402) is threaded with a longitudinal section of an L-shaped block (403). The transverse section of the L-shaped block (403) is limited and engaged with the end of the other connecting plate (401). A rotating handle (404) is fixedly provided at the outer end of the screw (402). The longitudinal section of the L-shaped block (403) is symmetrically provided with two guide rods (405), and the inner ends of the two guide rods (405) are respectively fixedly connected to the end of one of the connecting plates (401).

3. The waste heat utilization device in the gallium or lithium extraction process of red mud as described in claim 1, characterized in that, The outer inner walls of the U-shaped cover A (2) and the U-shaped cover B (3) are respectively fixed with U-shaped clips A (9) and U-shaped clips B (8), the U-shaped clips A (9) and U-shaped clips B (8) correspond to each other, and a card frame (7) is sleeved on the box body (1), the U-shaped clips A (9) and U-shaped clips B (8) are inserted into the slots on the card frame (7).

4. The waste heat utilization device in the gallium or lithium extraction process of red mud as described in claim 1, characterized in that, The top sides of the U-shaped cover A (2) and the U-shaped cover B (3) are respectively connected to the top of the two boxes (1) through guide structures (5); The guide structure (5) includes: Guide bar (502) is fixed to the top of the box (1); Among them, the top side ends of the U-shaped cover A (2) and the U-shaped cover B (3) are respectively fixed with a locking block (501), and the hole on the locking block (501) is fitted with the guide strip (502).

5. The waste heat utilization device in the gallium or lithium extraction process of red mud as described in claim 4, characterized in that, The end of the guide bar (502) is trapezoidal.

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