Lime waste heat recycling system

Abstract

The utility model discloses a lime waste heat recycling system which is characterized in that when the lime waste heat recycling system is used, high-temperature flue gas generated in the production process of a lime kiln enters a treatment box through a gas inlet pipe, and the flue gas directly enters a heat exchange device for heat exchange due to the fact that a large amount of dust is contained in the flue gas; the dust in the heat exchange device is too much to cause blockage, the flue gas cannot be directly discharged to cause atmospheric pollution, the flue gas enters the treatment box and is filtered by an internal filter plate, and the fixed plates on the two sides of the filter plate are knocked by a knocking component to cause blockage of the filter plate, so that the dust in the heat exchange device can be removed, and the dust in the heat exchange device can be removed. And a fixing plate drives a mounting plate to slide above a fixing rod, a spring is matched to enable a filter plate to shake so as to shake off dust above the filter plate, and treated flue gas enters a recycling pipe for waste heat recycling.

Description

A lime waste heat recovery system Technical Field

[0001] This utility model relates to the technical field of lime waste heat recovery and utilization systems, specifically a lime waste heat recovery and utilization system. Background Technology

[0002] The general method for producing light calcium carbonate is to put limestone (calcium carbonate) into a lime kiln and burn it into quicklime (calcium oxide). Then, water is used to slake the quicklime (calcium oxide) into hydrated lime (calcium hydroxide). After preparing the hydrated lime slurry, removing the slag and impurities, carbon dioxide gas is introduced to carbonize and reduce the hydrated lime (calcium hydroxide) into light calcium carbonate. After drying, the product is ready.

[0003] Existing lime production processes generate large amounts of high-temperature flue gas, which needs to be promptly cooled before being discharged. Directly exchanging the flue gas for heat results in a significant amount of dust within the gas. Current equipment filters the flue gas using filter plates to prevent impurities from entering the heat exchanger. However, this process leads to dust accumulation on the filter plate surface, which can cause filter blockage over time, requiring frequent replacement. Therefore, we propose a lime waste heat recovery system to address these issues. Summary of the Invention

[0004] The purpose of this utility model is to provide a lime waste heat recovery and utilization system to solve the problem of frequent filter replacement required when using the lime waste heat recovery and utilization system mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a lime waste heat recovery and utilization system, comprising a processing box and a recovery pipe;

[0006] An air inlet pipe is provided on the right side plate of the processing box. An assembly block is slidably provided inside the processing box. Multiple sets of fixing rods are provided on both sides inside the assembly block. Springs are sleeved on both ends of the multiple sets of fixing rods. One end of each spring is fixedly connected to the inside of the assembly block. Mounting plates are slidably provided on the fixing rods. Filter plates are detachably installed on the two sets of mounting plates. A knocking component is provided inside the processing box. An air supply pipe is provided on the side wall of the processing box. One end of the air supply pipe is connected to the first air storage chamber inside the right side of the recovery pipe.

[0007] The striking assembly includes a mounting block, a rotating shaft, an adjusting plate, a support rod, a moving plate, and a striking block. Mounting blocks are provided on both inner walls of the processing box. A rotating shaft is rotatably mounted on the mounting block and is rotatably connected to the processing box. An adjusting plate is mounted on the rotating shaft. A support rod is provided in front of the mounting block. One end of the support rod is connected to one end of the adjusting plate, and the other end of the support rod is connected to the moving plate. The tail of the moving plate is hinged to the mounting block, and a striking block is provided below the front end of the moving plate.

[0008] As a preferred embodiment of this utility model, a partition is provided in the middle of the first gas storage chamber, and a second gas storage chamber is provided inside the left side of the recovery pipe.

[0009] As a preferred embodiment of this utility model, the recovery pipe is provided with a heat exchange chamber, and the heat exchange chamber is provided with multiple sets of heat exchange tubes.

[0010] As a preferred embodiment of this utility model, the heat exchange tube is fixedly connected to the recovery tube, and both ends of the heat exchange tube pass through the recovery tube and are connected to the first gas storage chamber and the second gas storage chamber, respectively.

[0011] As a preferred embodiment of this utility model, an inlet pipe is provided above the recovery pipe, an outlet pipe is provided below the recovery pipe, and an exhaust pipe is provided below the heat exchange chamber.

[0012] As a preferred embodiment of this utility model, the filter plate is provided with fixing plates on both sides, and both sides of the fixing plates are connected to the mounting plate by bolts.

[0013] As a preferred embodiment of this utility model, the processing box is equipped with a motor that drives the rotating shaft, and the processing box is connected to a door via a hinge.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the lime waste heat recovery and utilization system is in use, the high-temperature flue gas generated during the lime kiln production process enters the treatment box through the air inlet pipe. Since the flue gas contains a large amount of dust, directly entering the heat exchange device for heat exchange may cause excessive dust inside the heat exchange device, leading to blockage. In addition, the flue gas cannot be directly discharged, which will cause air pollution. At this time, the flue gas enters the treatment box and is filtered through the internal filter plate. Since the flue gas ash production is large, the filter plate is prone to blockage. By striking the fixing plates on both sides of the filter plate with the striking component, the fixing plate drives the mounting plate to slide above the fixing rod. With the help of the spring, the filter plate shakes and shakes off the dust on the filter plate. The treated flue gas enters the recovery pipe for waste heat recovery and utilization. Attached Figure Description

[0015] Figure 1 is a three-dimensional structural schematic diagram of this utility model;

[0016] Figure 2 is a top-section structural diagram of the processing box of this utility model;

[0017] Figure 3 is a schematic diagram of the half-section structure of the assembly block of this utility model;

[0018] Figure 4 is an enlarged structural schematic diagram of point A in Figure 2 of this utility model;

[0019] Figure 5 is a schematic diagram of the recycling pipe structure of this utility model.

[0020] In the diagram: 1. Processing box; 2. Recovery pipe; 3. Assembly block; 4. Fixing rod; 5. Spring; 6. Mounting plate; 7. Filter plate; 8. Gas supply pipe; 9. First gas storage chamber; 10. Mounting block; 11. Rotating shaft; 12. Adjusting plate; 13. Support rod; 14. Moving plate; 15. Striking block; 16. Partition plate; 17. Second gas storage chamber; 18. Heat exchange chamber; 19. Heat exchange pipe; 20. Water inlet pipe; 21. Water outlet pipe; 22. Exhaust pipe; 23. Fixing plate; 24. Box door. Detailed Implementation

[0021] 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.

[0022] Please refer to Figures 1-5. This utility model provides a technical solution: a lime waste heat recovery and utilization system, including a treatment box 1 and a recovery pipe 2. An air inlet pipe is provided on the right side plate of the treatment box 1. An assembly block 3 is slidably installed inside the treatment box 1. Multiple sets of fixing rods 4 are provided on both sides inside the assembly block 3. Springs 5 ​​are sleeved on both ends of the multiple sets of fixing rods 4, and one end of each spring 5 is fixedly connected to the inside of the assembly block 3. Mounting plates 6 are slidably installed on the fixing rods 4. Filter plates 7 are detachably installed on the two sets of mounting plates 6. A striking component is provided inside the treatment box 1, and an air supply pipe 8 is provided on the side wall of the treatment box 1. One end of the gas supply pipe 8 is connected to the first gas storage chamber 9 inside the right side of the recovery pipe 2. A partition 16 is provided in the middle of the first gas storage chamber 9. A second gas storage chamber 17 is provided inside the left side of the recovery pipe 2. A heat exchange chamber 18 is provided inside the recovery pipe 2. Multiple sets of heat exchange pipes 19 are provided inside the heat exchange chamber 18. The heat exchange pipes 19 are fixedly connected to the recovery pipe 2. Both ends of the heat exchange pipes 19 pass through the recovery pipe 2 and are connected to the first gas storage chamber 9 and the second gas storage chamber 17, respectively. A water inlet pipe 20 is provided above the recovery pipe 2, a water outlet pipe 21 is provided below the recovery pipe 2, and an exhaust pipe 22 is provided below the heat exchange chamber 18.

[0023] At this time, the filtered high-temperature flue gas enters the gas transmission pipe 8 and then enters the first gas storage chamber 9 inside the recovery pipe 2. Since the partition 16 separates the first gas storage chamber 9, the flue gas enters the upper half of the first gas storage chamber 9 and then enters the upper half of the heat exchange pipe 19 inside the recovery pipe 2. At the same time, the water inlet pipe 20 injects cold water into the recovery pipe 2. After the cold water is heated by the heat exchange pipe 19, the heat exchange pipe 19 transports the flue gas to the second gas storage chamber 17 at one end of the recovery pipe 2 and then into the lower half of the heat exchange pipe 19. After the flue gas is transported to the lower half of the first gas storage chamber 9, it is discharged through the exhaust pipe 22 below. When the water temperature inside the heat exchange chamber 18 rises to a certain temperature, hot water can be discharged through the water outlet pipe 21 below for use.

[0024] The striking assembly includes a mounting block 10, a rotating shaft 11, an adjusting plate 12, a support rod 13, a moving plate 14, and a striking block 15. Mounting blocks 10 are provided on both inner walls of the treatment box 1. A rotating shaft 11 is rotatably mounted on the mounting block 10 and is rotatably connected to the treatment box 1. An adjusting plate 12 is mounted on the rotating shaft 11. A support rod 13 is provided in front of the mounting block 10. One end of the support rod 13 is connected to one end of the adjusting plate 12, and the other end of the support rod 13 is connected to the moving plate 14. The tail of the moving plate 14 is hinged to the mounting block 10. A striking block 15 is provided below the front end of the moving plate 14. Fixing plates 23 are provided on both sides of the filter plate 7. Both sides of the fixing plates 23 are connected to the mounting plate 6 by bolts. A motor that drives the rotating shaft 11 is provided on the treatment box 1. A door 24 is connected to the treatment box 1 by a hinge.

[0025] During operation, the high-temperature flue gas generated during lime kiln production enters the treatment box 1 through the inlet pipe. Since the flue gas contains a large amount of dust, directly entering the heat exchanger may cause excessive dust buildup and blockage. Furthermore, the flue gas cannot be directly discharged, causing air pollution. Instead, the flue gas enters the treatment box 1 and is filtered by the internal filter plate 7. Due to the large amount of ash produced, the filter plate 7 is prone to blockage. At this point, a motor drives the rotating shaft 11 to rotate, which in turn drives the adjusting plate 12 for adjustment. Simultaneously, the adjusting plate 12 drives the support rod 13 for adjustment. After adjusting the moving plate 14, the moving plate... After the striking block 15 below the front end of the moving plate 14 descends, it strikes the fixing plates 23 on both sides of the filter plate 7. The rotating shaft 11 rotates continuously, causing the striking block 15 to reciprocate and strike the fixing plates 23. This causes the fixing plates 23 to slide the mounting plate 6 above the fixing rod 4. At the same time, the spring 5 above the fixing rod 4 is stretched, and the spring 5 below is contracted. When the striking block 15 separates from the fixing plate 23, the spring 5 drives the mounting plate 6 to reset, causing the filter plate 7 to shake and shake off the dust on the filter plate 7. The dust falls to the bottom of the treatment box 1, and the box door 24 on the surface of the treatment box 1 can be opened periodically to collect and treat the dust inside.

[0026] Working Principle: When using the lime waste heat recovery system, the high-temperature flue gas generated during the lime kiln production process enters the treatment box 1 through the inlet pipe. Since the flue gas contains a large amount of dust, directly entering the heat exchanger may cause excessive dust buildup and blockage. Furthermore, the flue gas cannot be directly discharged, causing air pollution. Instead, the flue gas enters the treatment box 1 and is filtered through the internal filter plate 7. Due to the large amount of ash produced by the flue gas, the filter plate 7 is prone to blockage. At this point, the motor drives the rotating shaft 11 to rotate, causing the rotating shaft 1... 1. Adjusting plate 12 is driven to adjust, and simultaneously, adjusting plate 12 drives support rod 13 to adjust. After adjusting moving plate 14, the striking block 15 below the front end of moving plate 14 descends, striking the fixed plates 23 on both sides of filter plate 7. Rotating shaft 11 rotates continuously, causing striking block 15 to reciprocate and strike fixed plates 23, causing fixed plates 23 to drive mounting plate 6 to slide above fixed rod 4. At the same time, spring 5 above fixed rod 4 is stretched, and spring 5 below fixed rod 4 is contracted. When striking block 15 separates from fixed plate 23, spring 5... 5. The mounting plate 6 is reset, causing the filter plate 7 to shake and shake off the dust on top of the filter plate 7. The dust falls to the bottom of the treatment box 1. The box door 24 on the surface of the treatment box 1 can be opened periodically to collect the dust inside. At this time, the filtered high-temperature flue gas enters the gas delivery pipe 8 and then enters the first gas storage chamber 9 inside the recovery pipe 2. Because the partition 16 separates the first gas storage chamber 9, the flue gas enters the upper half of the first gas storage chamber 9 and then enters the upper half of the heat exchange tube 19 inside the recovery pipe 2. At the same time, the water inlet pipe 20 flows into the recovery pipe 2. Cold water is injected into the part, and after the cold water is heated by the heat exchange tube 19, the heat exchange tube 19 transports the flue gas to the second gas storage chamber 17 at one end of the recovery tube 2, and then into the heat exchange tube 19 in the lower half of the recovery tube 2. After that, the flue gas is transported to the lower half of the first gas storage chamber 9 and discharged through the exhaust pipe 22 below. When the water temperature inside the heat exchange chamber 18 rises to a certain temperature, hot water can be discharged through the water outlet pipe 21 below for use. This completes a series of operations. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A lime waste heat recovery system, comprising a processing box (1) and a recovery pipe (2); characterized in that: An air inlet pipe is provided on the right side plate of the processing box (1). An assembly block (3) is slidably provided inside the processing box (1). Multiple sets of fixing rods (4) are provided on both sides inside the assembly block (3). Springs (5) are sleeved on both ends of the multiple sets of fixing rods (4). One end of each spring (5) is fixedly connected to the inside of the assembly block (3). Mounting plates (6) are slidably provided on the fixing rods (4). Filter plates (7) are detachably installed on the two sets of mounting plates (6). A knocking component is provided inside the processing box (1). An air supply pipe (8) is provided on the side wall of the processing box (1). One end of the air supply pipe (8) is connected to the first air storage chamber (9) inside the right side of the recovery pipe (2). The knocking component includes an mounting block (10) and a rotating shaft. (11) Adjustment plate (12), support rod (13), moving plate (14) and striking block (15). The inner walls on both sides of the processing box (1) are provided with mounting blocks (10). The mounting block (10) is rotatably provided with a rotating shaft (11). The rotating shaft (11) is rotatably connected to the processing box (1). The adjusting plate (12) is installed on the rotating shaft (11). The support rod (13) is provided in front of the mounting block (10). One end of the support rod (13) is connected to one end of the adjusting plate (12). The other end of the support rod (13) is connected to the moving plate (14). The tail of the moving plate (14) is hinged to the mounting block (10). The striking block (15) is provided below the front end of the moving plate (14).

2. The lime waste heat recovery and utilization system according to claim 1, characterized in that, A partition (16) is provided in the middle of the first gas storage chamber (9), and a second gas storage chamber (17) is provided inside the left side of the recovery pipe (2).

3. The lime waste heat recovery and utilization system according to claim 2, characterized in that, The recovery pipe (2) is provided with a heat exchange chamber (18), and the heat exchange chamber (18) is provided with multiple sets of heat exchange pipes (19).

4. A lime waste heat recovery and utilization system according to claim 3, characterized in that, The heat exchange tube (19) is fixedly connected to the recovery tube (2). Both ends of the heat exchange tube (19) pass through the recovery tube (2) and are connected to the first gas storage chamber (9) and the second gas storage chamber (17).

5. A lime waste heat recovery and utilization system according to claim 3, characterized in that, The recovery pipe (2) is provided with an inlet pipe (20) above it, an outlet pipe (21) below it, and an exhaust pipe (22) below it.

6. A lime waste heat recovery and utilization system according to claim 1, characterized in that, The filter plate (7) is provided with fixing plates (23) on both sides, and both sides of the fixing plates (23) are connected to the mounting plate (6) by bolts.

7. A lime waste heat recovery and utilization system according to claim 1, characterized in that, The processing box (1) is equipped with a motor that drives the rotating shaft (11), and the processing box (1) is connected to a door (24) by a hinge.

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