A kiln body high temperature waste heat recovery and utilization system

Abstract

The present application discloses a kiln body high-temperature waste heat recovery and utilization system, belonging to the field of kiln body waste heat utilization, which includes: a rotary kiln body mounted on a frame for calcining ceramsite; multiple sets of symmetrical outer arc plates arranged on the outside of the rotary kiln body via a mounting frame and spaced a predetermined distance from the rotary kiln body; inner arc plates mounted on the inside of the outer arc plates and adapted to the inner contours of the outer arc plates; multiple parallel water pipes mounted between the outer and inner arc plates; a hose with one end connected to both ends of the water pipe and the other end connected to a water storage tank located at a predetermined position; and an adjustment mechanism mounted on the mounting frame for adjusting the distance between the inner arc plates and the rotary kiln body. When in use, the present application can effectively utilize the waste heat generated by the rotary kiln, reduce heat loss from the rotary kiln, and improve utilization.

Description

Technical Field

[0001] The present invention relates to the field of kiln waste heat utilization, and in particular to a kiln high-temperature waste heat recovery and utilization system. Background Art

[0002] Nowadays, many building materials are gradually adopting some more environmentally friendly materials. Many of these environmentally friendly materials are pre-prepared into ceramsite from industrial sludge or solid waste, and then the ceramsite is prepared into the required stone, composite materials and various bricks and tiles.

[0003] At present, in the preparation process of expanded clay, a rotary kiln is generally used for calcination. During the calcination process of expanded clay, the outer surface temperature of the rotary kiln is generally very high. However, most of this waste heat is wasted in practice and is not well utilized. This needs further improvement. Summary of the Invention

[0004] The purpose of this application is to provide a kiln body high-temperature waste heat recovery and utilization system, which can effectively utilize the waste heat generated by the rotary kiln, reduce the heat loss of the rotary kiln, and improve the utilization rate.

[0005] This application provides a kiln high-temperature waste heat recovery and utilization system, which adopts the following technical solutions:

[0006] A kiln body high-temperature waste heat recovery and utilization system comprises: a rotary kiln body mounted on a frame for calcining ceramsite; a plurality of sets of symmetrical outer arc plates arranged on the outside of the rotary kiln body via a mounting frame and spaced a predetermined distance from the rotary kiln body; inner arc plates mounted on the inside of the outer arc plates and adapted to the inner contours of the outer arc plates; a plurality of mutually parallel water pipes mounted between the outer arc plates and the inner arc plates; a hose having one end connected to both ends of the water pipe and the other end connected to a water storage tank arranged at a predetermined position; and an adjustment mechanism arranged on the mounting frame for adjusting the distance between the inner arc plates and the rotary kiln body.

[0007] By adopting the above technical solution, when the rotary kiln body is working, heat radiation will be generated in the direction of the inner arc plate, and the inner arc plate itself is arranged in an arc shape, which has a good heat gathering effect, so that the water pipe between the outer arc plate and the inner arc plate can absorb a large amount of heat, thereby heating the water in the water pipe. The adjustment mechanism provided can adjust the distance between the inner arc plate and the rotary kiln body according to actual needs to increase the scope of application of the present application. Through the above solution, the waste heat of the rotary kiln body can be effectively utilized to improve the utilization rate of the waste heat of the rotary kiln body.

[0008] The present application further provides: the adjustment mechanism includes: a plurality of telescopic rods fixed on the outer arc plate at one end and fixed on the mounting frame at the other end; an adjustment rod rotatably mounted on the mounting frame; a movable block rotatably mounted on one end of the adjustment rod close to the outer arc plate and slidably mounted on the outside of the outer arc plate; a driving assembly arranged on the mounting frame for driving the adjustment rods to rotate with each other to drive the outer arc plate to move horizontally.

[0009] By adopting the above technical solution and turning on the driving assembly, the two adjusting rods can be driven to rotate relative to each other. While the adjusting rods rotate relative to each other, they will drive the moving block to move on the outer arc plate. Through this structure, the outer arc plate can be driven to move in the horizontal direction. This solution is simple to operate and has obvious effects.

[0010] The present application further provides: the driving assembly includes: a rotating rod rotatably mounted on the mounting frame and perpendicular to the adjusting rod; an adjusting rope with one end connected to the rotating rod and the other end connected to the end of the adjusting rod away from the moving block; a servo motor mounted on the mounting frame for driving the rotating rod to rotate; and a compression spring mounted between the adjusting rods for driving the two adjusting rods away from each other.

[0011] By adopting the above technical solution, when the servo motor is turned on, the rotating rod can be driven to rotate. During the rotation process, the rotating rod can reel in or release the adjusting rope. In cooperation with the compression spring, the ends of the two adjusting rods can be conveniently driven to move closer to or away from each other, so as to achieve the purpose of adjusting the distance between the inner arc plate and the rotary kiln body.

[0012] The present application is further configured as follows: the mounting frame is provided with an extension cylinder extending from the gap between two adjacent outer arc plates toward the rotary kiln body; an extension rod is slidably installed on the extension cylinder; an inner water pipe is installed on the end of the extension rod; both ends of the inner water pipe are connected to a hose; a driving member for driving the extension rod to extend and retract is installed on the extension cylinder.

[0013] By adopting the above technical solution, an inner water pipe is installed between the inner arc plate and the rotary kiln body, so that the inner water pipe can directly absorb the heat energy of the rotary kiln body on the one hand, and on the other hand, it can also absorb the heat reflected from the inner wall of the inner arc plate, thereby further increasing the utilization rate of the heat of the rotary kiln body on the basis of the water pipe.

[0014] The present application further provides: a hydraulic cylinder is obliquely installed on the mounting frame, a slider is hinged on the output end of the hydraulic cylinder, the slider is slidably installed on the outside of the extension tube along the extension direction of the extension tube, and the end of the extension tube is rotatably installed on the mounting frame.

[0015] By adopting the above technical solution, the hydraulic cylinder can drive the slider to slide on the outside of the extension tube when it is turned on, thereby driving the entire extension rod and the extension tube to rotate, so that the angle of the water supply inner pipe can be adjusted to increase the scope of application of this application.

[0016] The present application further provides: a ring block movably mounted on the outside of the inner water pipe is fixed to the end of the extension rod, both ends of the inner water pipe are connected to the hose through a rotating connector, and a power component for driving the inner water pipe to rotate is provided on the extension rod.

[0017] By adopting the above technical solution, the power component can drive the inner water pipe to rotate when it is turned on. During the rotation process, the inner water pipe can heat itself evenly to ensure the uniformity of heating of the water inside.

[0018] The present application further provides: the power assembly includes: a first servo motor mounted on the extension rod; an annular gear plate fixedly mounted on the outside of the water supply inner pipe; and a gear mounted on the output end of the first servo motor and meshing with the annular gear plate.

[0019] By adopting the above technical solution, when it is necessary to drive the water supply inner pipe to rotate, the first servo motor can be turned on to drive the gear to rotate. During the rotation process, the gear can drive the annular gear plate engaged with it to rotate, thereby driving the entire water supply inner pipe to rotate.

[0020] The present application further provides that: symmetrical arc plates are hinged on both sides of the inner arc plate, and a driving member for driving the arc plate to rotate is installed on the outer arc plate.

[0021] By adopting the above technical solution, the arc plate provided can further concentrate heat on the basis of the inner arc plate, so that more heat is reflected to the inner water pipe, thereby increasing the utilization rate of the waste heat of the rotary kiln body. The power parts provided can adjust the angle of the arc plate according to actual needs, thereby further increasing the scope of application of this application.

[0022] The present application further provides: the driving member includes: a second servo motor installed on the outer arc plate; a pressure rod installed on the output shaft of the second servo motor for abutting the outer side of the arc plate; and a torsion spring installed between the arc plate and the inner arc plate.

[0023] By adopting the above technical solution, the torsion spring can use its own elastic restoring force to drive the curved plate to rotate in the direction away from the rotary kiln body, and the second servo motor can drive the pressure rod to rotate and press against the curved plate when it is turned on. The cooperation between the torsion spring and the pressure rod can easily drive the curved plate to rotate to a predetermined angle, and the whole process is simple to operate.

[0024] The present application further provides that: a transparent strip is embedded on the inner side of the inner arc plate near the water pipe, and the transparent strip is in contact with the water pipe.

[0025] By adopting the above technical solution, the transparent strips can allow the heat radiated from the rotary kiln to directly penetrate the transparent strips and irradiate the water pipe, thereby effectively reducing heat loss and further improving the waste heat utilization rate of the rotary kiln.

[0026] In summary, this application includes at least one of the following beneficial technical effects:

[0027] By providing the inner arc plate and the water pipe, the inner arc plate itself can utilize its arc-shaped shape to absorb and concentrate the heat dissipated by the rotary kiln body, so that the water pipe can absorb a large amount of heat, and the heated hot water can be used in other places where it is needed. The adjustment mechanism can adjust the distance between the inner arc plate and the rotary kiln body according to actual needs, thereby increasing the scope of application of the present application;

[0028] By setting an inner water pipe between the inner arc plate and the rotary kiln body, the inner water pipe can not only directly absorb the heat of the rotary kiln body, but also absorb the thermal radiation energy emitted by the inner arc plate. Therefore, the heat of the rotary kiln body can be further utilized on the basis of the water pipe, so as to improve the utilization rate of the waste heat of the rotary kiln body. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application;

[0030] Figure 2 This is a schematic structural diagram of the adjustment mechanism in the embodiment of the present application;

[0031] Figure 3 It is a structural diagram of the power component in an embodiment of the present application.

[0032] Explanation of the accompanying drawings: 1. Frame; 10. Rotary kiln body; 2. Mounting frame; 3. Outer arc plate; 30. Arc plate; 31. Inner arc plate; 310. Transparent strip; 32. Water pipe; 33. Water tank; 34. Hose; 35. Second servo motor; 36. Pressure rod; 4. Telescopic rod; 41. Adjustment rod; 42. Moving block; 43. Rotating rod; 44. Adjustment rope; 45. Servo motor; 46. Compression spring; 5. Extension tube; 51. Extension rod; 52. Inner water pipe; 53. Hydraulic cylinder; 54. Gear; 55. Ring block; 56. Rotating connector; 57. First servo motor; 58. Ring gear plate. DETAILED DESCRIPTION

[0033] The present application is further described in detail below with reference to the accompanying drawings.

[0034] The present application embodiment discloses a kiln high temperature waste heat recovery and utilization system, such as Figure 1 and Figure 2 As shown, it includes: a rotary kiln body 10 installed on a frame 1. The rotary kiln body 10 of this embodiment is used for calcining ceramsite. Since the rotary kiln body 10 generates a large amount of heat during operation, in order to utilize the heat generated by the rotary kiln body 10, in this embodiment, mounting frames 2 are provided on both sides of the rotary kiln body 10, and multiple groups of outer arc plates 3 are installed on the mounting frames 2. Each group of outer arc plates 3 consists of two pieces. The outer arc plates 3 are located on both sides of the rotary kiln body 10 and are symmetrically arranged. Each outer arc plate 3 is spaced a predetermined distance from the rotary kiln body 10.

[0035] An inner arc plate 31 is installed on the inner side of the outer arc plate 3. The outer contour of the inner arc plate 31 is adapted to the inner contour of the outer arc plate 3, and a plurality of parallel water pipes 32 are installed between the inner arc plate 31 and the outer arc plate 3. The water pipes 32 are made of metal and are arranged along the extension direction of the rotary kiln body 10. A hose 34 is connected to both ends of the water pipe 32. The hose 34 extends from one end of the water pipe 32 to a water tank 33 at a predetermined position. A water pump is also installed on the water tank 33 to realize water circulation through the water pump.

[0036] When the rotary kiln body 10 is working, a large amount of heat is generated. The inner arc plate 31 is arranged in an arc shape, which can absorb and accumulate this heat and transfer the heat to the water pipe 32 to heat the cold water in the water pipe 32. The heated hot water will enter the water tank 33. When the hot water in the water tank 33 meets the usage temperature of people, it can be used for showering or other required purposes. Through this solution, the waste heat generated by the rotary kiln body 10 can be effectively utilized to reduce heat loss and improve utilization rate.

[0037] In order to reduce heat loss and allow the water pipe 32 to absorb more heat energy, a transparent strip 310 is embedded on the inner side of the inner arc plate 31 near the water pipe 32, and the transparent strip 310 is in contact with the water pipe 32. The transparent strip 310 allows the heat radiated from the rotary kiln body 10 to directly penetrate the transparent strip 310 and irradiate the water pipe 32, thereby effectively reducing heat loss and further improving the waste heat utilization rate of the rotary kiln body 10.

[0038] The mounting frame 2 is further provided with an adjusting mechanism, which can adjust the distance between the inner arc plate 31 and the rotary kiln body 10 to increase the applicable range of this embodiment.

[0039] In this embodiment, the adjustment mechanism includes: a plurality of telescopic rods 4 with one end fixed on the outer side of the outer arc plate 3 and the other end fixed on the mounting frame 2, and symmetrical adjustment rods 41 are rotatably cross-mounted on the mounting frame 2. The end of the adjustment rod 41 close to the outer arc plate 3 is hinged to a moving block 42, and the moving block 42 is slidably mounted on the outer side of the outer arc plate 3. A driving assembly is also provided on the mounting frame 2, and the driving assembly can drive the adjustment rod 41 away from the two ends of the outer arc plate 3 to move closer to or away from each other, thereby driving the entire outer arc plate 3 to move in a horizontal position.

[0040] Among them, the driving component includes: a rotating rod 43 rotatably mounted on the mounting frame 2 and perpendicular to the adjusting rod 41, an adjusting rope 44 is fixed at the end of the adjusting rod 41 away from the moving block 42, and the end of the adjusting rope 44 away from the adjusting rod 41 is connected to the rotating rod 43. At the same time, a servo motor 45 is also installed on the mounting frame 2, and the output shaft of the servo motor 45 is fixed to the rotating rod 43. A compression spring 46 is also installed between the ends of the two adjusting rods 41 away from the moving block 42.

[0041] When it is necessary to adjust the distance between the outer arc plate 3 and the rotary kiln body 10, the servo motor 45 can be turned on to drive the rotating rod 43 to rotate. When the rotating rod 43 rotates, the adjusting rope 44 will be wound or released to drive the adjusting rods 41 to move closer or farther away from each other. When the ends of the adjusting rods 41 are close to each other, the outer arc plate 3 can be driven to move a predetermined distance toward the rotary kiln body 10. Conversely, when the ends of the adjusting rods 41 are farther away from each other, the outer arc plate 3 will be driven to move a predetermined distance away from the rotary kiln body 10.

[0042] like Figure 1 and Figure 3 As shown, an extension tube 5 extending from the gap between two adjacent outer arc plates 3 toward the rotary kiln body 10 is roughly horizontally installed on the mounting frame 2, an extension rod 51 is slidably arranged in the extension tube 5, and a metal water supply inner tube 52 is installed at the end of the extension rod 51. The length direction of the water supply inner tube 52 is consistent with the extension direction of the rotary kiln body 10, and both ends of the water supply inner tube 52 are connected to the hose 34. A driving member is also provided on the extension tube 5, and the output end of the driving member is connected to the extension rod 51. When the driving member is turned on, the extension rod 51 can be driven to slide in the extension tube 5 to adjust the distance between the water supply inner tube 52 and the rotary kiln body 10.

[0043] The inner water pipe 52 is provided. On the one hand, the inner water pipe 52 can directly absorb the heat energy of the rotary kiln body 10. On the other hand, it can also absorb the heat reflected from the inner wall of the inner arc plate 31, thereby further increasing the utilization rate of the heat emitted by the rotary kiln body 10 on the basis of the water pipe 32.

[0044] Taking into account that the position of the inner arc plate 31 will be adjusted in practice, in this embodiment, a hydraulic cylinder 53 is installed obliquely on the mounting frame 2, and the output end of the hydraulic cylinder 53 is hinged with a slider (not shown in the figure), and the slider is slidably installed on the outside of the extension tube 5 along the extension direction of the extension tube 5. It should be noted that the end of the extension tube 5 in this embodiment is rotatably installed on the mounting frame 2. When the hydraulic cylinder 53 is turned on, the slider can be driven to slide on the outside of the extension tube 5 to adjust the angle between the extension tube 5 and the mounting frame 2. In conjunction with the driving member, the water supply inner pipe 52 can be conveniently adjusted to a suitable position.

[0045] In addition, the applicant also took into account that the side of the water supply inner tube 52 close to the rotary kiln body 10 will inevitably be heated more. In order to make the water supply inner tube 52 absorb heat evenly, in this embodiment, a ring block 55 that is movably mounted on the outside of the water supply inner tube 52 is fixed at the end of the extension rod 51, and the two ends of the water supply inner tube 52 are connected to the end of the hose 34 through a rotating connector 56. It should be noted that the rotating connector 56 is hollow and L-shaped, and the end of the water supply inner tube 52 is rotatably connected to the rotating connector 56. A power component is also provided on the extension rod 51. When the power component is turned on, it can drive the entire water supply inner tube 52 to rotate, so that the water supply inner tube 52 itself is heated evenly to ensure uniform heating of the water.

[0046] In this embodiment, the power assembly includes: a first servo motor 57 mounted on the extension rod 51 through a mounting plate, an annular gear plate 58 is fixedly sleeved on the outside of the water supply inner tube 52, a gear 54 is mounted on the output shaft of the first servo motor 57, and the gear 54 and the annular gear plate 58 are engaged with each other. When the first servo motor 57 is turned on, the water supply inner tube 52 can be easily driven to rotate.

[0047] In addition, symmetrical arc plates 30 are hinged on the upper and lower sides of the inner arc plate 31, and a power member is provided on the outer arc plate 3, which is used to drive the arc plate 30 to rotate. In this embodiment, the power member includes: a second servo motor 35 installed on the outer arc plate 3, and a pressure rod 36 for abutting the arc plate 30 is installed on the output shaft of the second servo motor 35. A torsion spring is installed between the arc plate 30 and the inner arc plate 31, and the torsion spring can drive the arc plate 30 to rotate in a direction away from the rotary kiln body 10.

[0048] When the second servo motor 35 is turned on, the pressure rod 36 can be driven to rotate and press against the outer side of the arc plate 30. The torsion spring and the pressure rod 36 cooperate with each other to drive the arc plate 30 to rotate to a predetermined angle. By adjusting the rotation angle of the arc plate 30, the heat energy gathering effect can be enhanced, so that the water supply inner pipe 52 can not only receive the heat reflection from the inner arc plate 31, but also receive the heat reflection from the arc plate 30, so as to further improve the utilization rate of the waste heat of the rotary kiln body 10.

[0049] It should be noted that, in this embodiment, the driving member can adopt a relatively common air cylinder or hydraulic cylinder, which will not be described in detail here.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A kiln high temperature waste heat recovery and utilization system, characterized in that: include: A rotary kiln body (10) mounted on a frame (1) for calcining ceramsite; Multiple groups of symmetrical outer arc plates (3) are arranged on the outside of the rotary kiln body (10) via a mounting frame (2) and are spaced a predetermined distance from the rotary kiln body (10); An inner arc plate (31) is mounted on the inner side of the outer arc plate (3) and is adapted to the inner contour of the outer arc plate (3); A plurality of mutually parallel water pipes (32) installed between the outer arc plate (3) and the inner arc plate (31); A hose (34) having one end connected to both ends of a water delivery pipe (32) and the other end connected to a water storage tank (33) arranged at a predetermined position; and an adjusting mechanism provided on the mounting frame (2) for adjusting the distance between the inner arc plate (31) and the rotary kiln body (10); The mounting frame (2) is provided with an extension cylinder (5) extending from the gap between two adjacent outer arc plates (3) toward the rotary kiln body (10); the extension cylinder (5) is slidably provided with an extension rod (51); an inner water pipe (52) is provided at the end of the extension rod (51); both ends of the inner water pipe (52) are connected to a hose (34); a driving member for driving the extension rod (51) to extend and retract is provided on the extension cylinder (5); a hydraulic cylinder (53) is obliquely provided on the mounting frame (2); the hydraulic cylinder ( The output end of the extension rod (53) is hinged with a slider, the slider is slidably mounted on the outside of the extension tube (5) along the extension direction of the extension tube (5), and the end of the extension tube (5) is rotatably mounted on the mounting frame (2); the end of the extension rod (51) is fixed with an annular block (55) that is movably sleeved on the outside of the water delivery inner tube (52); the two ends of the water delivery inner tube (52) are connected to the hose (34) through a rotating connector (56), and the extension rod (51) is provided with a power component for driving the water delivery inner tube (52) to rotate.

2. A kiln high temperature waste heat recovery and utilization system according to claim 1, characterized in that: The adjustment mechanism comprises: a plurality of telescopic rods (4) with one end fixed on the outer arc plate (3) and the other end fixed on the mounting frame (2); an adjustment rod (41) whose rod body is rotatably mounted on the mounting frame (2); a moving block (42) rotatably mounted on one end of the adjustment rod (41) close to the outer arc plate (3) and slidably mounted on the outside of the outer arc plate (3); and a driving assembly arranged on the mounting frame (2) for driving the adjustment rods (41) to rotate relative to each other to drive the outer arc plate (3) to move horizontally.

3. The kiln high temperature waste heat recovery and utilization system according to claim 2, characterized in that: The driving assembly comprises: a rotating rod (43) rotatably mounted on a mounting frame (2) and perpendicular to an adjusting rod (41); an adjusting rope (44) having one end connected to the rotating rod (43) and the other end connected to an end of the adjusting rod (41) away from a moving block (42); a servo motor (45) mounted on the mounting frame (2) for driving the rotating rod (43) to rotate; and a compression spring (46) mounted between the adjusting rods (41) for driving the two adjusting rods (41) to move away from each other.

4. The kiln high-temperature waste heat recovery and utilization system according to claim 1, characterized in that: The power assembly comprises: a first servo motor (57) mounted on an extension rod (51); an annular gear plate (58) fixedly sleeved on the outside of an inner water pipe (52); and a gear (54) mounted on the output end of the first servo motor (57) and meshing with the annular gear plate (58).

5. The kiln high temperature waste heat recovery and utilization system according to claim 1, characterized in that: Symmetrical arc plates (30) are hinged on both sides of the inner arc plate (31), and a driving member for driving the arc plate (30) to rotate is installed on the outer arc plate (3).

6. The kiln high temperature waste heat recovery and utilization system according to claim 5, characterized in that: The driving member comprises: a second servo motor (35) mounted on the outer arc plate (3); a pressing rod (36) mounted on the output shaft of the second servo motor (35) for abutting against the outer side of the arc plate (30); and a torsion spring mounted between the arc plate (30) and the inner arc plate (31).

7. The kiln high-temperature waste heat recovery and utilization system according to claim 1, characterized in that: A transparent strip plate (310) is embedded in the inner side of the inner arc plate (31) near the water pipe (32), and the transparent strip plate (310) is in contact with the water pipe (32).

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