A system for recovering waste heat from the sintering of ceramsite

Abstract

The utility model relates to the technical field of waste heat recovery, and disclose a kind of ceramsite sintering's waste heat recovery system, including fixed seat and fixed installation in the middle part at the top of fixed seat's rotary kiln main body, the middle part at the right side of rotary kiln main body is equipped with smoke pipe, and the right side of rotary kiln main body is provided with processing box, by the intercoordination between these components of flat plate, threaded rod, driven bevel gear, driving bevel gear, transmission rod, vertical board, knob, threaded sleeve and L-shaped fixed rod, can periodically drive filter screen plate to move to the outside of processing box upwards, to facilitate staff to clean the dust and impurities attached on filter screen plate and processing box, avoid the blockage of filter screen plate caused by more dust for long-term use, effectively improve the effect of dust filtration in flue gas, use effect is better, solve the problem of the thickening of serpentine pipe wall caused by the lack of flue gas filtration in the existing.

Description

Technical Field

[0001] This utility model relates to the technical field of waste heat recovery, specifically a waste heat recovery system for ceramsite sintering. Background Technology

[0002] In the production of ceramsite, rotary kiln sintering is one of the core processes. This process generates a large amount of high-temperature flue gas (300-600℃) and high-temperature sintered ceramsite (500-800℃). These heat sources contain a large amount of waste heat. If they are not recovered and utilized, it will not only cause energy waste, but also increase the production costs of enterprises and the environmental burden.

[0003] Existing waste heat recovery systems for ceramsite sintering typically discharge the generated flue gas directly into a serpentine tube to heat the water added to the outer casing of the tube, thus recovering waste heat. However, these systems lack components to filter dust and impurities from the flue gas. Over time, these impurities tend to adhere to the inner wall of the pipe, causing thickening of the pipe wall and affecting the normal flow of flue gas. Furthermore, the system cannot regulate the amount of flue gas entering the pipe, and excessive flue gas can lead to excessively high flow rates, reducing heat exchange efficiency and resulting in poor performance.

[0004] Therefore, we propose a waste heat recovery system for ceramsite sintering to address the problems mentioned above. Utility Model Content

[0005] The purpose of this invention is to provide a waste heat recovery system for ceramsite sintering to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a waste heat recovery system for ceramsite sintering, comprising a fixed base and a rotary kiln body fixedly installed at the top center of the fixed base. A flue gas pipe is installed at the center of the right side of the rotary kiln body, and a processing box is provided on the right side of the rotary kiln body. The right end of the flue gas pipe extends through and into the inner cavity of the processing box. Two filter screens are attached to the inner cavity of the processing box near the left side, and the filter screens are arranged left and right. A sealing plate is fixedly installed on the top of the filter screens. The bottom of the sealing plate is fitted to the top of the treatment box. A lifting component is installed in the middle of the front side of the treatment box, and a flow regulating component is installed on the top of the sealing plate near the rear side. A flue pipe is fixedly installed through the rear side of the treatment box near the upper right part. A waste heat recovery box is installed on the left side of the rear side of the treatment box, and a serpentine tube is installed in the inner cavity of the waste heat recovery box. The left and right ends of the serpentine tube are fixedly extended through to the outside of the waste heat recovery box, and the left end of the flue pipe and the right end of the serpentine tube are detachably connected by a flange.

[0007] The lifting assembly includes two flat plates fixedly installed at the center of the front side of the processing box. The flat plates are arranged vertically, and a threaded rod is provided on the opposite side of the flat plates. The upper end of the threaded rod is movably installed on the upper flat plate, and the lower end of the threaded rod extends through to the outside of the lower flat plate and is fixedly installed with a driven bevel gear. The front side of the driven bevel gear meshes with a driving bevel gear. A threaded sleeve is threadedly installed on the outside of the threaded rod near the lower end. L-shaped fixing rods are fixedly installed at the middle of both sides of the threaded sleeve, and the upper ends of the L-shaped fixing rods are fixedly installed on the sealing plate.

[0008] Preferably, a transmission rod is fixedly installed through the middle of the active bevel gear, and a vertical plate is movably installed at the rear end of the transmission rod. The top of the vertical plate is fixedly installed on the processing box, and a knob is fixedly installed at the front end of the transmission rod.

[0009] Preferably, a sealing groove is provided at the top of the processing box near the edge, and a sealing frame strip is inserted into the inner cavity of the sealing groove. The top of the sealing frame strip is fixedly installed on the sealing plate, and support blocks are fixedly installed at the bottom of the processing box near the left and right sides.

[0010] Preferably, straight plates are provided on both the left and right sides of the bottom of the sealing plate, and the opposite side of the straight plates is fixedly installed on the processing box. Limiting telescopic rods are fixedly installed on the top of the straight plates near the front and rear sides, and the upper ends of the limiting telescopic rods are fixedly installed on the sealing plate.

[0011] Preferably, the flow regulation assembly includes a servo motor located on the top of the sealing plate near the rear side and a turntable fixedly installed at the output end of the servo motor. A fixed shaft is fixedly installed on the rear side of the turntable near the upper left edge, and a sliding frame is slidably sleeved on the outer side of the fixed shaft. A movable plate is provided on the right side of the sliding frame. Movable rods are fixedly installed on the bottom of the movable plate near the left and right sides, and the lower ends of the movable rods slide through and extend into the inner cavity of the processing box, and are fixedly installed on an adjustment plate. The rear side of the adjustment plate is fitted against the inner wall of the inner cavity of the processing box, and the adjustment plate is located at the front end of the exhaust pipe.

[0012] Preferably, a support base is fixedly installed at the middle of the bottom of the servo motor, and the bottom of the support base is fixedly installed on the sealing plate.

[0013] Preferably, a connecting rod is fixedly installed at the middle of the left side of the movable plate, and the left side of the connecting rod is fixedly installed on the sliding frame.

[0014] Preferably, a guide plate is fixedly installed at the middle of the left side of the sliding frame, and a guide rod is slidably installed through the guide plate, with the lower end of the guide rod fixedly installed on the sealing plate.

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

[0016] 1. Through the cooperation of components such as the flat plate, threaded rod, driven bevel gear, driving bevel gear, transmission rod, vertical plate, knob, threaded sleeve, and L-shaped fixing rod, the filter screen can be periodically moved upward to the outside of the treatment box. This facilitates the cleaning of dust and impurities attached to the filter screen and treatment box by the staff, avoiding the clogging of the filter screen caused by excessive dust over long-term use. This effectively improves the filtration effect of dust in flue gas, resulting in better performance and solving the problem of thickening of the serpentine pipe wall caused by the lack of flue gas filtration.

[0017] 2. Through the cooperation of components such as servo motor, support base, turntable, fixed shaft, sliding frame, guide plate, guide rod, moving plate, connecting rod, moving rod and adjusting plate, the adjusting plate can be moved up and down, thereby adjusting the size of the flue gas flow orifice, avoiding excessively fast flue gas flow and resulting in low waste heat utilization, and further improving the utilization rate of flue gas waste heat. Attached Figure Description

[0018] Figure 1 This is a perspective view of the entire utility model;

[0019] Figure 2 This is a right-side perspective view of the present invention;

[0020] Figure 3 This is a bottom-view perspective view of the present invention;

[0021] Figure 4 This is a partial rear cross-sectional view of the present invention.

[0022] Figure 5 This is a partial unfolded perspective view of the processing box of this utility model;

[0023] Figure 6 This is a partial cross-sectional perspective view of the processing box of this utility model;

[0024] Figure 7 This is a partial bottom-view perspective view of the processing box of this utility model;

[0025] Figure 8 This is a partial three-dimensional view of the filter screen of this utility model;

[0026] Figure 9 For the present utility model Figure 3 Enlarged view of point A in the middle;

[0027] Figure 10 For the present utility model Figure 4 Enlarged view of section B in the middle.

[0028] In the diagram: 1. Fixed base; 2. Rotary kiln body; 3. Processing box; 31. Sealing groove; 32. Sealing frame strip; 33. Support block; 4. Filter screen plate; 5. Sealing plate; 51. Straight plate; 52. Limiting telescopic rod; 6. Lifting assembly; 61. Flat plate; 62. Threaded rod; 63. Driven bevel gear; 64. Driving bevel gear; 641. Transmission rod; 642. Vertical plate; 643. Knob; 65. Threaded sleeve; 66. L-shaped fixed rod; 7. Flow regulating assembly; 71. Servo motor; 711. Support base; 72. Turntable; 73. Fixed shaft; 74. Sliding frame; 741. Guide plate; 742. Guide rod; 75. Moving plate; 751. Connecting rod; 76. Moving rod; 77. Adjusting plate; 8. Exhaust pipe; 9. Waste heat recovery box; 10. Serpentine pipe; 20. Flange. Detailed Implementation

[0029] 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.

[0030] Example 1

[0031] Please see Figure 1-10 A waste heat recovery system for ceramsite sintering includes a fixed base 1 and a rotary kiln body 2 fixedly installed at the top center of the fixed base 1. A flue pipe is installed at the center of the right side of the rotary kiln body 2, and a treatment box 3 is arranged on the right side of the rotary kiln body 2. The right end of the flue pipe extends through and into the inner cavity of the treatment box 3. Two filter screens 4 are attached to the inner cavity of the treatment box 3 near the left side, and the filter screens 4 are arranged left and right. A sealing plate 5 is fixedly installed on the top of the filter screens 4. The bottom of the sealing plate 5 is attached to the top of the treatment box 3. A lifting assembly 6 is installed at the center of the front side of the treatment box 3, and the top of the sealing plate 5 is attached to the top of the treatment box 3. A flow regulating component 7 is installed near the rear side. A flue pipe 8 is fixedly installed through the rear side of the treatment box 3 near the upper right part. A waste heat recovery box 9 is set on the left side of the rear side of the treatment box 3. A serpentine pipe 10 is installed inside the cavity of the waste heat recovery box 9. The left and right ends of the serpentine pipe 10 are fixedly extended through to the outside of the waste heat recovery box 9. The left end of the flue pipe 8 and the right end of the serpentine pipe 10 are detachably connected by a flange 20. A water injection pipe is fixedly installed through the middle of the top of the waste heat recovery box 9. A drain pipe is fixedly installed through the left side of the waste heat recovery box 9 near the bottom. Valves are installed on the outside of both the water injection pipe and the drain pipe.

[0032] The lifting assembly 6 includes two flat plates 61 fixedly installed at the center of the front side of the processing box 3. The flat plates 61 are arranged vertically. A threaded rod 62 is provided on the opposite side of the flat plates 61. The upper end of the threaded rod 62 is movably installed on the upper flat plate 61, and the lower end of the threaded rod 62 extends through to the outside of the lower flat plate 61 and is fixedly installed with a driven bevel gear 63. A driving bevel gear 64 meshes with the front side of the driven bevel gear 63. A threaded sleeve 65 is threadedly installed on the outer side of the threaded rod 62 near the lower end. L-shaped fixing rods 66 are fixedly installed at the middle of both sides of the threaded sleeve 65. The upper ends of the L-shaped fixing rods 66 are fixedly installed on the sealing plate 5. This can drive the filter screen 4 to move upward to the outside of the processing box 3, which is convenient for the staff to handle impurities and avoids the impurities from clogging the filter screen 4 after long-term use.

[0033] A transmission rod 641 is fixedly installed through the middle of the active bevel gear 64, and a vertical plate 642 is movably installed at the rear end of the transmission rod 641. The top of the vertical plate 642 is fixedly installed on the processing box 3, and a knob 643 is fixedly installed at the front end of the transmission rod 641 to facilitate the rotation of the active bevel gear 64.

[0034] A sealing groove 31 is provided on the top of the treatment box 3 near the edge, and a sealing frame strip 32 is inserted into the inner cavity of the sealing groove 31. The top of the sealing frame strip 32 is fixedly installed on the sealing plate 5. Support blocks 33 are fixedly installed on the bottom of the treatment box 3 near the left and right sides, which can improve the sealing between the treatment box 3 and the sealing plate 5, and also support the treatment box 3.

[0035] Straight plates 51 are provided on both the left and right sides of the bottom of the sealing plate 5, and the opposite side of the straight plates 51 is fixedly installed on the processing box 3. Limiting telescopic rods 52 are fixedly installed on the top of the straight plates 51 near the front and rear sides. The upper ends of the limiting telescopic rods 52 are fixedly installed on the sealing plate 5, which serves to guide and limit the movement of the sealing plate 5, thus ensuring high stability.

[0036] In this embodiment: During operation, the flue gas generated by the rotary kiln body 2 enters the treatment box 3 through the flue gas outlet pipe. After being filtered by the double-layer filter screen 4, the flue gas enters the inner cavity of the exhaust pipe 8, and then enters the serpentine pipe 10. The heat in the flue gas can heat the clean water added to the waste heat recovery box 9, realizing the recovery and utilization of waste heat. The serpentine pipe 10 can make full use of the heat in the flue gas and extend the time of the flue gas in the pipe. In addition, after long-term use, the dust and impurities on the filter screen 4 can be cleaned. Turning the knob 643 will drive the transmission rod 641 to rotate. When the transmission rod 641 rotates, it drives the active bevel gear 64 to rotate. When the active bevel gear 64 rotates, it drives the threaded rod 62 to rotate through the driven bevel gear 63. When the threaded rod 62 rotates, it drives the threaded sleeve 65 to move upward. When the threaded sleeve 65 moves upward, it drives the sealing plate 5 to move upward through the L-shaped fixing rod 66. At this time, the filter screen plate 4 will also move upward synchronously with the sealing plate 5, so that the filter screen plate 4 can be removed. The dust and impurities attached to it can be cleaned (which is beneficial for wiping and vacuuming equipment, etc.). After cleaning, the operation is reversed to restore the filter screen plate 4 and the sealing plate 5 to their original positions.

[0037] Example 2

[0038] This embodiment is an improvement upon embodiment 1. For details, please refer to [link / reference]. Figure 1-2 , Figure 5-7 and Figure 10 The flow regulation component 7 includes a servo motor 71 located on the top of the sealing plate 5 near the rear side and a turntable 72 fixedly installed at the output end of the servo motor 71. A fixed shaft 73 is fixedly installed on the rear side of the turntable 72 near the upper left edge, and a sliding frame 74 is slidably sleeved on the outer side of the fixed shaft 73. A movable plate 75 is located on the right side of the sliding frame 74. Movable rods 76 are fixedly installed on the bottom of the movable plate 75 near the left and right sides, and the lower ends of the movable rods 76 slide through and extend into the inner cavity of the processing box 3, and are fixedly installed on an adjustment plate 77. The rear side of the adjustment plate 77 is fitted against the inner wall of the inner cavity of the processing box 3, and the adjustment plate 77 is located at the front end of the exhaust pipe 8. By adjusting the up and down position of the adjustment plate 77, the diameter of the exhaust pipe 8 can be adjusted to avoid the flue gas entering too quickly and affecting the waste heat utilization rate.

[0039] A support base 711 is fixedly installed at the middle of the bottom of the servo motor 71, and the bottom of the support base 711 is fixedly installed on the sealing plate 5, which serves to support the servo motor 71.

[0040] A connecting rod 751 is fixedly installed at the middle of the left side of the movable plate 75, and the left side of the connecting rod 751 is fixedly installed on the sliding frame 74, which can drive the movable plate 75 to move up and down synchronously with the sliding frame 74.

[0041] A guide plate 741 is fixedly installed in the middle of the left side of the sliding frame 74, and a guide rod 742 is slidably installed through the guide plate 741. The lower end of the guide rod 742 is fixedly installed on the sealing plate 5, which serves to guide and limit the movement of the sliding frame 74, resulting in high stability.

[0042] In this embodiment: when the flue gas begins to be emitted, the diameter of the flue pipe 8 can be adjusted. The operation of the servo motor 71 will drive the turntable 72 to rotate. When the turntable 72 rotates, it will drive the sliding frame 74 to move up and down back and forth through the fixed shaft 73. When the sliding frame 74 moves up and down, it will drive the moving plate 75 to move up and down back and forth through the connecting rod 751. When the moving plate 75 moves up and down, it will drive the adjusting plate 77 to move downward through the moving rod 76, so that it can slowly move away from the flue pipe 8. This allows the diameter of the flue pipe 8 to be adjusted, preventing the flue gas from entering too quickly and affecting the utilization rate of waste heat.

[0043] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0044] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A waste heat recovery system for sintering ceramsite, comprising a fixed base (1) and a rotary kiln body (2) fixedly installed at the top center of the fixed base (1), characterized in that: A flue pipe is installed at the middle of the right side of the rotary kiln body (2), and a treatment box (3) is provided on the right side of the rotary kiln body (2). The right end of the flue pipe is fixedly extended through the inner cavity of the treatment box (3). Two filter screens (4) are attached to the inner cavity of the treatment box (3) near the left side, and the filter screens (4) are arranged left and right. A sealing plate (5) is fixedly installed on the top of the filter screens (4). The bottom of the sealing plate (5) is attached to the top of the treatment box (3). A lifting assembly is installed at the middle of the front side of the treatment box (3). 6), and a flow regulating component (7) is installed on the top of the sealing plate (5) near the rear side. A flue pipe (8) is fixedly installed through the rear side of the treatment box (3) near the upper right part. A waste heat recovery box (9) is set on the left side of the rear side of the treatment box (3). A serpentine tube (10) is set in the inner cavity of the waste heat recovery box (9). The left and right ends of the serpentine tube (10) are fixedly extended through to the outside of the waste heat recovery box (9). The left end of the flue pipe (8) and the right end of the serpentine tube (10) are detachably connected by a flange (20). The lifting assembly (6) includes two flat plates (61) fixedly installed at the middle of the front side of the processing box (3), and the flat plates (61) are arranged vertically. A threaded rod (62) is provided on the opposite side of the flat plates (61). The upper end of the threaded rod (62) is movably installed on the upper flat plate (61), and the lower end of the threaded rod (62) extends through to the outside of the lower flat plate (61) and is fixedly installed with a driven bevel gear (63). The front side of the driven bevel gear (63) is meshed with a driving bevel gear (64). A threaded sleeve (65) is threadedly installed on the outside of the threaded rod (62) near the lower end. An L-shaped fixing rod (66) is fixedly installed at the middle of both sides of the threaded sleeve (65), and the upper end of the L-shaped fixing rod (66) is fixedly installed on the sealing plate (5).

2. The waste heat recovery system for ceramsite sintering according to claim 1, characterized in that: A transmission rod (641) is fixedly installed through the middle of the active bevel gear (64), and a vertical plate (642) is movably installed at the rear end of the transmission rod (641). The top of the vertical plate (642) is fixedly installed on the processing box (3), and a knob (643) is fixedly installed at the front end of the transmission rod (641).

3. The waste heat recovery system for ceramsite sintering according to claim 1, characterized in that: The top of the processing box (3) is provided with a sealing groove (31) near the edge, and a sealing frame strip (32) is inserted into the inner cavity of the sealing groove (31). The top of the sealing frame strip (32) is fixedly installed on the sealing plate (5), and support blocks (33) are fixedly installed at the bottom of the processing box (3) near the left and right sides.

4. The waste heat recovery system for ceramsite sintering according to claim 1, characterized in that: Straight plates (51) are provided on both the left and right sides of the bottom of the sealing plate (5), and the opposite side of the straight plates (51) is fixedly installed on the processing box (3). Limiting telescopic rods (52) are fixedly installed on the top of the straight plates (51) near the front and rear sides, and the upper end of the limiting telescopic rods (52) is fixedly installed on the sealing plate (5).

5. The waste heat recovery system for ceramsite sintering according to claim 1, characterized in that: The flow regulation assembly (7) includes a servo motor (71) located on the top of the sealing plate (5) near the rear side and a turntable (72) fixedly installed at the output end of the servo motor (71). A fixed shaft (73) is fixedly installed on the rear side of the turntable (72) near the upper left edge. A sliding frame (74) is slidably sleeved on the outer side of the fixed shaft (73). A movable plate (75) is provided on the right side of the sliding frame (74). Movable rods (76) are fixedly installed on the bottom of the movable plate (75) near the left and right sides. The lower ends of the movable rods (76) slide through and extend into the inner cavity of the processing box (3). An adjustment plate (77) is fixedly installed on both of them. The rear side of the adjustment plate (77) is fitted against the inner wall of the inner cavity of the processing box (3). The adjustment plate (77) is located at the front end of the exhaust pipe (8).

6. The waste heat recovery system for ceramsite sintering according to claim 5, characterized in that: A support base (711) is fixedly installed at the middle of the bottom of the servo motor (71), and the bottom of the support base (711) is fixedly installed on the sealing plate (5).

7. The waste heat recovery system for ceramsite sintering according to claim 5, characterized in that: A connecting rod (751) is fixedly installed at the middle of the left side of the movable plate (75), and the left side of the connecting rod (751) is fixedly installed on the sliding frame (74).

8. The waste heat recovery system for ceramsite sintering according to claim 5, characterized in that: A guide plate (741) is fixedly installed at the middle of the left side of the sliding frame (74), and a guide rod (742) is slidably installed through the guide plate (741). The lower end of the guide rod (742) is fixedly installed on the sealing plate (5).

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