Energy-saving hot air circulating device of calcium formate drying system

Abstract

The utility model provides an energy-saving hot air circulation device of a calcium formate drying system, which relates to the technical field of calcium formate drying and comprises a first hot air circulation pipe, a hot air purification mechanism and a hot air circulation mechanism, one end of the first hot air circulation pipe is connected with a hot air recovery pipe of the calcium formate drying system, and the hot air purification mechanism comprises a support, an end cover and a purification disc. A purifying box is arranged on the front side in the purifying disc, an end cover is rotationally arranged on the front side of the purifying disc, one end of a first hot air circulating pipe is connected with a first connecting hole, and the output end of a hot air circulating mechanism is connected with a fresh air heating jacketed pipe of a calcium formate drying system; tail gas from the calcium formate drying system enters the hot air purifying mechanism through the first hot air circulating pipe to be purified and dehumidified, and then is pumped into the fresh air heating jacketed pipe of the calcium formate drying system through the hot air circulating mechanism, so that fresh air is preheated by using the purified and dried high-temperature hot air tail gas.

Description

Technical Field

[0001] This utility model relates to the field of calcium formate drying technology, and in particular to an energy-saving hot air circulation device for a calcium formate drying system. Background Technology

[0002] In the process of hot air drying of calcium formate, the treatment of hot air (exhaust gas) is a key factor affecting the system's energy efficiency and environmental friendliness.

[0003] The exhaust gas from a calcium formate hot air drying system can be used as a preheating source for the fresh air in the same system. By circulating the exhaust gas to heat the fresh air, the energy required for heating the fresh air can be reduced. Currently, in existing technologies, the exhaust gas from a calcium formate hot air drying system is not purified before entering the fresh air heating module. If the exhaust gas containing fine calcium formate particles is used directly, it will adhere to the inside of the fresh air heating module over time, affecting the efficiency of the exhaust gas in heating the fresh air duct. Therefore, this invention proposes an energy-saving hot air circulation device for a calcium formate drying system to address the shortcomings of existing technologies. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide an energy-saving hot air circulation device for a calcium formate drying system. By setting up an energy-saving hot air circulation device consisting of a first hot air circulation pipe, a hot air purification mechanism, and a hot air circulation mechanism, the exhaust gas from the calcium formate drying system enters the hot air purification mechanism through the first hot air circulation pipe and is purified and dehumidified. Then, it is pumped into the fresh air heating jacket pipe of the calcium formate drying system through the hot air circulation mechanism, thereby realizing the use of purified and dried high-temperature hot air exhaust gas to preheat the fresh air.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An energy-saving hot air circulation device for a calcium formate drying system includes a first hot air circulation pipe, a hot air purification mechanism, and a hot air circulation mechanism. One end of the first hot air circulation pipe is connected to a hot air recovery pipe of the calcium formate drying system. The hot air purification mechanism includes a support, an end cap, and a purification disc. The purification disc is rotatably mounted to the support via a main shaft. An air collection chamber is located on the rear side of the purification disc, and a purification box is located on the front side of the purification disc. Four sets of purification boxes are provided, and each of the four sets of purification boxes sequentially contains a first filter, a second filter, a first absorbent cotton, and a second absorbent cotton. The front side of the purification tray is provided with an end cover, which has a through hole. The main shaft is connected to the end cover through the through hole via a first bearing. The end cover has a disassembly port, the position and size of which are adapted to the purification box. A sealing plate is movably installed inside the disassembly port. A first connecting hole is provided on the upper front of the end cover. One end of the first hot air circulation pipe is connected to the first connecting hole. A second connecting hole is provided at the center of the back of the purification tray. The second connecting hole is connected to the input end of the hot air circulation mechanism. The output end of the hot air circulation mechanism is connected to the fresh air heating jacket pipe of the calcium formate drying system.

[0007] A further improvement is that a toothed ring is provided on the outer wall of the purification disc, a drive motor is provided below the purification disc, and a gear is provided at the output shaft end of the drive motor, the gear meshing with the toothed ring.

[0008] A further improvement is that an installation ring is rotatably provided on the outer wall of the purification tray, and the purification tray is installed with the support structure through the installation ring.

[0009] A further improvement is that the hot air circulation mechanism includes a connecting pipe, a suction pump, and a second hot air circulation pipe. The connecting pipe is provided in the second connecting hole, and the connecting pipe is connected to the second connecting hole through a second bearing. One end of the connecting pipe is connected to the input end of the suction pump, and the output end of the suction pump is provided with the second hot air circulation pipe.

[0010] A further improvement is that a first valve, a second valve, and a third valve are sequentially provided on the first hot air circulation pipe, the connecting pipe, and the second hot air circulation pipe.

[0011] A further improvement is that: the front side wall inside the purification tray is provided with a positioning groove that matches the purification box, and the purification box is provided with a positioning block that matches the positioning groove.

[0012] The beneficial effects of this utility model are as follows: This utility model sets up an energy-saving hot air circulation device consisting of a first hot air circulation pipe, a hot air purification mechanism and a hot air circulation mechanism. The exhaust gas from the calcium formate drying system enters the hot air purification mechanism through the first hot air circulation pipe and is purified and dehumidified. Then, it is pumped into the fresh air heating jacket pipe of the calcium formate drying system through the hot air circulation mechanism, so as to realize the use of the purified and dried high-temperature hot air exhaust gas to preheat the fresh air.

[0013] The purification disc of this utility model's hot air purification mechanism is rotated, and the four sets of purification boxes inside can purify the exhaust gas separately, which has the advantage of improving purification efficiency. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;

[0015] Figure 2 This is a three-dimensional schematic diagram of the purification tray structure of this utility model;

[0016] Figure 3 This is a schematic diagram showing the internal structure of the purification box of this utility model.

[0017] The components include: 1. First hot air circulation pipe; 2. Hot air circulation mechanism; 201. Connecting pipe; 202. Suction pump; 203. Second hot air circulation pipe; 3. Hot air recovery pipe; 4. Bracket; 5. End cap; 6. Purification disc; 7. Main shaft; 8. Air collection chamber; 9. Purification box; 10. First filter screen; 11. Second filter screen; 12. First absorbent cotton; 13. Second absorbent cotton; 14. Sealing plate; 15. Gear ring; 16. Drive motor; 17. Gear; 18. Mounting ring; 19. Positioning groove; 20. Positioning block; 21. Fresh air heating jacket pipe. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1-3As shown, this embodiment proposes an energy-saving hot air circulation device for a calcium formate drying system, including a first hot air circulation pipe 1, a hot air purification mechanism, and a hot air circulation mechanism 2. One end of the first hot air circulation pipe 1 is connected to the hot air recovery pipe 3 of the calcium formate drying system. The hot air purification mechanism includes a support 4, an end cap 5, and a purification disc 6. The purification disc 6 is rotatably mounted to the support 4 via a main shaft 7. An air collection chamber 8 is provided on the rear side inside the purification disc 6, and a purification box 9 is provided on the front side inside the purification disc 6. The purification box 9 is provided in four sets, and each of the four sets of purification boxes 9 is sequentially provided with a first filter 10, a second filter 11, a first absorbent cotton 12, and a second absorbent cotton 13. The purification tray 6 has a rotatable end cap 5 on its front side. The end cap 5 has a through hole. The main shaft 7 is connected to the end cap 5 through the through hole via a first bearing. The end cap 5 has a disassembly port. The position and size of the disassembly port are adapted to the purification box 9. A sealing plate 14 is movably installed in the disassembly port. The end cap 5 has a first connecting hole on its front upper side. One end of the first hot air circulation pipe 1 is connected to the first connecting hole. The purification tray 6 has a second connecting hole at its back center. The second connecting hole is connected to the input end of the hot air circulation mechanism 2. The output end of the hot air circulation mechanism 2 is connected to the fresh air heating jacket pipe 21 of the calcium formate drying system.

[0020] When the energy-saving hot air circulation device of the calcium formate drying system of this utility model circulates the exhaust gas of the calcium formate drying system, the exhaust gas enters the first hot air circulation pipe 1 after exiting the hot air recovery pipe 3, and then enters the purification plate 6. The exhaust gas is gradually purified by a set of purification boxes 9 that are adapted to the position of the first hot air circulation pipe 1 (after two filtrations and two moisture absorptions, wherein the pore size of the first filter screen 10 is larger than that of the second filter screen 11). In this utility model, the front side of the interior of the purification plate 6 is connected to the interior of the air collection chamber 8. The purified hot air enters the air collection chamber 8, and then the hot air circulation mechanism 2 pumps the hot air into the fresh air heating jacket pipe 21.

[0021] A gear ring 15 is provided on the outer wall of the purification disc 6, and a drive motor 16 is provided below the purification disc 6. A gear 17 is provided at the output shaft end of the drive motor 16, and the gear 17 meshes with the gear ring 15. In this utility model, the four sets of purification boxes 9 inside the purification disc 6 can perform purification operations one by one. When the energy efficiency of the first filter 10, the second filter 11, the first absorbent cotton 12, and the second absorbent cotton 13 in the current set of purification boxes 9 decreases, the drive motor 16 is started to control the rotation of the purification disc 6, so that the next set of purification boxes 9 is rotated to a position that matches the first hot air circulation pipe 1. This operation is repeated to achieve purification operations using the four sets of purification boxes 9 one by one.

[0022] A mounting ring 18 is rotatably provided on the outer wall of the purification tray 6, and the purification tray 6 is installed with the support structure through the mounting ring 18. The mounting ring 18 can improve the stability of the purification tray 6 when it rotates.

[0023] The hot air circulation mechanism 2 includes a connecting pipe 201, a suction pump 202, and a second hot air circulation pipe 203. The connecting pipe 201 is installed inside the second connecting hole and is connected to the second connecting hole via a second bearing. One end of the connecting pipe 201 is connected to the input end of the suction pump 202, and the output end of the suction pump 202 is equipped with the second hot air circulation pipe 203. A first valve, a second valve, and a third valve are sequentially installed on the first hot air circulation pipe 1, the connecting pipe 201, and the second hot air circulation pipe 203. By opening the first valve, the second valve, and the third valve, the suction pump 202 draws hot air from the air collecting chamber 8 into the second hot air circulation pipe 203, and then the hot air enters the fresh air heating jacket pipe 21.

[0024] The purification tray 6 has a positioning groove 19 on its inner front side wall that is compatible with the purification box 9, and the purification box 9 has a positioning block 20 that is compatible with the positioning groove 19. By setting the positioning groove 19 and the positioning block 20, the purification box 9 can be quickly positioned and installed.

[0025] This invention utilizes an energy-saving hot air circulation device consisting of a first hot air circulation pipe 1, a hot air purification mechanism, and a hot air circulation mechanism 2. The exhaust gas from the calcium formate drying system enters the hot air purification mechanism through the first hot air circulation pipe 1 and is purified and dehumidified. Then, it is pumped into the fresh air heating jacket pipe 21 of the calcium formate drying system through the hot air circulation mechanism 2, thus preheating the fresh air using the purified and dried high-temperature hot air exhaust gas. The purification disc 6 of the hot air purification mechanism is rotatable, and the four sets of purification boxes 9 inside can purify the exhaust gas separately, improving purification efficiency.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An energy-saving hot air circulation device for a calcium formate drying system, characterized in that: The system includes a first hot air circulation pipe (1), a hot air purification mechanism, and a hot air circulation mechanism (2). One end of the first hot air circulation pipe (1) is connected to the hot air recovery pipe (3) of the calcium formate drying system. The hot air purification mechanism includes a bracket (4), an end cap (5), and a purification disc (6). The purification disc (6) is rotatably mounted to the bracket (4) via a main shaft (7). The rear side of the purification disc (6) is provided with an air collection chamber (8). The front side of the purification disc (6) is provided with a purification box (9). The purification box (9) is provided in four sets. Each of the four sets of purification boxes (9) is provided with a first filter screen (10), a second filter screen (11), a first absorbent cotton (12), and a second absorbent cotton (13) in sequence. The front side of the purification plate (6) is provided with an end cover (5), which has a through hole. The main shaft (7) is connected to the end cover (5) through the first bearing in the through hole. The end cover (5) has a disassembly port. The position and size of the disassembly port are adapted to the purification box (9). A sealing plate (14) is provided in the disassembly port. The front top of the end cover (5) has a first connecting hole. One end of the first hot air circulation pipe (1) is connected to the first connecting hole. The center of the back of the purification plate (6) has a second connecting hole. The second connecting hole is connected to the input end of the hot air circulation mechanism (2). The output end of the hot air circulation mechanism (2) is connected to the fresh air heating jacket pipe (21) of the calcium formate drying system.

2. The energy-saving hot air circulation device for a calcium formate drying system according to claim 1, characterized in that: The purification disc (6) has a toothed ring (15) on its outer wall and a drive motor (16) below it. The output shaft of the drive motor (16) has a gear (17) that meshes with the toothed ring (15).

3. The energy-saving hot air circulation device for a calcium formate drying system according to claim 1, characterized in that: The purification plate (6) is provided with a mounting ring (18) on its outer wall, and the purification plate (6) is installed with the support structure through the mounting ring (18).

4. The energy-saving hot air circulation device for a calcium formate drying system according to claim 1, characterized in that: The hot air circulation mechanism (2) includes a connecting pipe (201), a suction pump (202), and a second hot air circulation pipe (203). The connecting pipe (201) is provided in the second connecting hole. The connecting pipe (201) is connected to the second connecting hole through a second bearing. One end of the connecting pipe (201) is connected to the input end of the suction pump (202). The output end of the suction pump (202) is provided with the second hot air circulation pipe (203).

5. The energy-saving hot air circulation device for a calcium formate drying system according to claim 4, characterized in that: The first hot air circulation pipe (1), the connecting pipe (201), and the second hot air circulation pipe (203) are provided with a first valve, a second valve, and a third valve in sequence.

6. The energy-saving hot air circulation device for a calcium formate drying system according to claim 1, characterized in that: The purification tray (6) has a positioning groove (19) on its inner front side wall that is compatible with the purification box (9), and the purification box (9) has a positioning block (20) that is compatible with the positioning groove (19).

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