Preheater for recycling boric anhydride in flue gas

Abstract

The utility model relates to the technical field of preheaters, and discloses a preheater for recycling boric anhydride in flue gas, which comprises a bottom plate, three first sliding chutes arranged on the bottom plate, fixing rods fixedly mounted in the first sliding chutes on two sides of the bottom plate, and a first driving motor fixedly mounted on the end surface of one side of the bottom plate, according to the preheater for recycling boric anhydride in flue gas, the preheater is controlled through a first driving motor so that a first threaded rod installed at the output end of the preheater can be driven to rotate, and the first threaded rod is inserted into a through hole in a connecting block; therefore, when a first threaded rod rotates, a fixing plate can be well driven to move back and forth in a first sliding groove, so that the fixing plate can well drive a heating box to move outwards, and then a fixing rod penetrates through a through hole of a connecting block at the bottom of the fixing plate; and therefore, the fixing plate can be well kept stable when moving, and a worker can well maintain the heating box.

Description

Technical Field

[0001] This utility model relates to the field of preheater technology, specifically a preheater for recovering boron anhydride from flue gas. Background Technology

[0002] Boron anhydride, also known as boron oxide, is an inorganic compound with the chemical formula B₂O₃. It is also called boron trioxide and is the most important oxide of boron. It is a white, waxy solid, generally existing in an amorphous state and rarely forming crystals. However, it can crystallize after high-strength annealing, making it one of the most difficult substances to crystallize known.

[0003] Traditional preheaters generally have low preheating efficiency during use, and when they are damaged and need maintenance, they are also inconvenient to maintain. Therefore, it is difficult for staff to maintain the preheaters after they are damaged. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a preheater for boron anhydride recovery in flue gas, which solves the problem mentioned in the background art that traditional preheaters generally have low preheating efficiency and are inconvenient to maintain when damaged. This leads to the problem that it is difficult for staff to maintain the preheater after it is damaged.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a preheater for recovering boron anhydride from flue gas, comprising a base plate, three first sliding grooves formed on the base plate, fixing rods fixedly installed in the first sliding grooves on both sides of the base plate, a first drive motor fixedly installed on one end face of the base plate, a first threaded rod fixedly installed at the output end of the first drive motor, the first threaded rod extending into the first sliding groove, a fixing plate provided on the base plate, three connecting blocks fixedly installed at the bottom of the fixing plate, all three connecting blocks being disposed in the first sliding grooves, each of the three connecting blocks having through holes, and fixing rods and first threaded rods respectively inserted into the three through holes, and a heating box provided on the fixing plate.

[0006] By adopting the above technical solution, the first drive motor is controlled to drive the first threaded rod installed on its output end to rotate. Since the first threaded rod is inserted into the through hole in the connecting block, the first threaded rod can drive the fixing plate to move back and forth in the first slide groove when it rotates, thereby enabling the fixing plate to move the heating box outward. A fixing rod also passes through the through hole of the connecting block at the bottom of the fixing plate, so that the fixing plate can maintain stability when moving, thus making it easier for staff to maintain the heating box.

[0007] Preferably, both the fixing plate and the heating box have four positioning holes, which are arranged in a rectangular array on the fixing plate and the heating box, and each of the four positioning holes is provided with a positioning bolt.

[0008] By adopting the above technical solution, the heating box can be installed on the heating box through the positioning holes set on the fixing plate. After that, the heating box can be removed from the fixing plate by removing the positioning bolts from the positioning holes.

[0009] Preferably, the heating box has an air inlet on its right end face, a first one-way valve on the air inlet, an air outlet on its front end, a second one-way valve on the air outlet, a heating tube inside the heating box, and a sealing groove at its rear end.

[0010] Using the above technical solution, the air inlet on the heating chamber allows other gases to enter the heating chamber effectively. The air inlet is equipped with a first one-way valve, which effectively prevents other gases from flowing out of the heating chamber. After the gas is preheated, it is discharged through the air outlet, which is equipped with a second one-way valve. This allows the gas to enter the heating chamber from the outlet. The heating chamber is equipped with heating elements, ensuring that the gas is preheated after entering the heating chamber.

[0011] Preferably, a fixing block is fixedly installed on the base plate near the rear end, and a second sliding groove is formed on the fixing block. A second drive motor is fixedly installed on the base plate near the rear end, and a second threaded rod is fixedly installed at the output end of the second drive motor, extending into the second sliding groove.

[0012] By adopting the above technical solution, the second drive motor installed on the base plate can effectively drive the second threaded rod installed on its output end to rotate. Therefore, when the second threaded rod rotates, it can effectively drive the mounting block to move in the second slide groove.

[0013] Preferably, a mounting block is provided in the second groove, a second threaded rod passes through the mounting block, a connecting rod is fixedly mounted on the mounting block, a sealing plate is fixedly mounted on the front end surface of the connecting rod, and the sealing plate is slidably inserted into the sealing groove.

[0014] By adopting the above technical solution, the connecting rod can be moved in the sealing groove by the mounting block, so that the external flue gas can be drawn into the heating box through the air inlet for preheating and then discharged through the air outlet.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The preheater for boron anhydride recovery in flue gas controls the first drive motor to rotate the first threaded rod installed on its output end. Since the first threaded rod is inserted into the through hole in the connecting block, the rotation of the first threaded rod can effectively drive the fixing plate to move back and forth in the first slide groove, thereby effectively moving the heating box outward. A fixing rod also passes through the through hole of the connecting block at the bottom of the fixing plate, thus ensuring the stability of the fixing plate during movement and facilitating maintenance of the heating box by personnel.

[0017] 2. The preheater for boron anhydride recovery in the flue gas controls the second drive motor, which in turn controls the second threaded rod installed on its output end. This causes the second threaded rod to move the mounting block within the second slide groove. Since the mounting block has a connecting rod with a sealing plate, the movement of the mounting block within the second slide groove allows the sealing plate to reciprocate within the sealing groove. This enables the external flue gas to be drawn into the heating chamber through the inlet for preheating before being discharged through the outlet. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the preheater for boron anhydride recovery in flue gas according to this utility model;

[0019] Figure 2 This is a top view schematic diagram of the preheater for boron anhydride recovery in flue gas according to this utility model;

[0020] Figure 3 This is a schematic diagram of the heating box and related structures of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the preheater for boron anhydride recovery in flue gas according to this utility model;

[0022] Figure 5 This is a schematic diagram of the fixing plate and related structures of this utility model.

[0023] In the diagram: 1. Base plate; 2. First slide groove; 3. Fixing rod; 4. First drive motor; 5. First threaded rod; 6. Fixing plate; 7. Connecting block; 8. Through hole; 9. Heating box; 10. Positioning hole; 11. Positioning bolt; 12. Air inlet; 13. First one-way valve; 14. Air outlet; 15. Second one-way valve; 16. Heating tube; 17. Sealing groove; 18. Fixing block; 19. Second slide groove; 20. Second drive motor; 21. Second threaded rod; 22. Mounting block; 23. Connecting rod; 24. Sealing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1:

[0026] Referring to Figures 1-5, a preheater for recovering boron anhydride from flue gas is described. The base plate 1 has three first sliding grooves 2. Fixing rods 3 are fixedly installed in the first sliding grooves 2 on both sides of the base plate 1. A first drive motor 4 is fixedly installed on one end face of the base plate 1. A first threaded rod 5 is fixedly installed at the output end of the first drive motor 4, extending into the first sliding groove 2. A fixing plate 6 is provided on the base plate 1. Three connecting blocks 7 are fixedly installed at the bottom of the fixing plate 6. All three connecting blocks 7 are disposed within the first sliding grooves 2, and each of the three connecting blocks 7 has a through hole 8. A fixing rod 3 and a first threaded rod 5 are respectively inserted into the three through holes 8. A heating box 9 is provided on the fixing plate 6. Four positioning holes 10 are opened on both the fixing plate 6 and the heating box 9. The four positioning holes 10 are arranged in a rectangular array on the fixing plate 6 and the heating box 9. A positioning bolt 11 is provided in each of the four positioning holes 10. An air inlet 12 is provided on the right end face of the heating box 9. A first one-way valve 13 is provided on the air inlet 12. An air outlet 14 is provided at the front end of the heating box 9. A second one-way valve 15 is provided on the air outlet 14. A heating tube 16 is provided inside the heating box 9.

[0027] Working principle: When maintenance of the preheater is required, the first drive motor 4 is controlled to rotate the first threaded rod 5 installed on its output end. Since the first threaded rod 5 is inserted into the through hole 8 in the connecting block 7, its rotation allows the fixing plate 6 to move back and forth in the first slide groove 2, thus enabling the fixing plate 6 to move the heating box 9 outwards. A fixing rod 3 also passes through the through hole 8 of the connecting block 7 at the bottom of the fixing plate 6, ensuring stability during movement and facilitating maintenance of the heating box 9. Both the heating box 9 and the fixing plate 6 have positioning holes 10. Once the positioning bolt 11 is removed, the heating box 9 can be easily taken out for subsequent maintenance. The air inlet 12 on the heating box 9 allows gas to enter the heating box 9. The first one-way valve 13 inside the air inlet 12 prevents gas from flowing out of the heating box 9. After the gas is preheated, it will be discharged through the air outlet 14. The second one-way valve 15 on the air outlet 14 allows the gas to enter the heating box 9 from the air outlet 14. The heating tube 16 inside the heating box 9 allows the gas to be preheated after entering the heating box 9.

[0028] Example 2:

[0029] Referring to Figures 1-5, a preheater for recovering boron anhydride from flue gas is described. The heating box 9 has a sealing groove 17 at its rear end. A fixing block 18 is fixedly installed on the base plate 1 near the rear end. A second sliding groove 19 is formed on the fixing block 18. A second drive motor 20 is fixedly installed on the base plate 1 near the rear end. A second threaded rod 21 is fixedly installed at the output end of the second drive motor 20. The second threaded rod 21 extends into the second sliding groove 19. An installation block 22 is provided within the second sliding groove 19. The second threaded rod 21 passes through the installation block 22. A connecting rod 23 is fixedly installed on the installation block 22. A sealing plate 24 is fixedly installed on the front surface of the connecting rod 23. The sealing plate 24 is slidably inserted into the sealing groove 17.

[0030] Working principle: The operator controls the second drive motor 20, which in turn controls the second threaded rod 21 installed on its output end. This causes the second threaded rod 21 to move the mounting block 22 within the second slide groove 19. Since the mounting block 22 is equipped with a connecting rod 23 and a sealing plate 24, the movement of the mounting block 22 within the second slide groove 19 allows the sealing plate 24 to reciprocate within the sealing groove 17. This allows external flue gas to be drawn into the heating box 9 through the air inlet 12 for preheating before being discharged through the air outlet 14. During the process of the flue gas being drawn into the heating box 9, it undergoes convection and remains within the heating box 9 for a period of time, thus receiving sufficient preheating and resulting in a better preheating effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A preheater for recovering boron anhydride from flue gas, comprising a base plate (1), characterized in that: The base plate (1) has three first sliding grooves (2). Fixing rods (3) are fixedly installed in the first sliding grooves (2) on both sides of the base plate (1). A first drive motor (4) is fixedly installed on one side end face of the base plate (1). A first threaded rod (5) is fixedly installed at the output end of the first drive motor (4). The first threaded rod (5) extends into the first sliding groove (2). A fixing plate (6) is provided on the base plate (1). Three connecting blocks (7) are fixedly installed at the bottom of the fixing plate (6). All three connecting blocks (7) are located in the first sliding grooves (2). All three connecting blocks (7) have through holes (8). Fixing rods (3) and first threaded rods (5) are respectively inserted into the three through holes (8). A heating box (9) is provided on the fixing plate (6).

2. A preheater for boron anhydride recovery from flue gas according to claim 1, characterized in that: The fixing plate (6) and the heating box (9) each have four positioning holes (10). The four positioning holes (10) are arranged in a rectangular array on the fixing plate (6) and the heating box (9). Each of the four positioning holes (10) is provided with a positioning bolt (11).

3. A preheater for boron anhydride recovery from flue gas according to claim 1, characterized in that: An air inlet (12) is provided on the right end face of the heating box (9), a first one-way valve (13) is provided on the air inlet (12), an air outlet (14) is provided at the front end of the heating box (9), a second one-way valve (15) is provided on the air outlet (14), a heating tube (16) is provided inside the heating box (9), and a sealing groove (17) is provided at the rear end of the heating box (9).

4. A preheater for boron anhydride recovery from flue gas according to claim 1, characterized in that: A fixing block (18) is fixedly installed on the base plate (1) near the rear end. A second sliding groove (19) is opened on the fixing block (18). A second drive motor (20) is fixedly installed on the base plate (1) near the rear end. A second threaded rod (21) is fixedly installed at the output end of the second drive motor (20). The second threaded rod (21) extends into the second sliding groove (19).

5. A preheater for boron anhydride recovery from flue gas according to claim 4, characterized in that: The second groove (19) is provided with an installation block (22), through which a second threaded rod (21) passes. A connecting rod (23) is fixedly installed on the installation block (22), and a sealing plate (24) is fixedly installed on the front end surface of the connecting rod (23). The sealing plate (24) is slidably inserted into the sealing groove (17).

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