Hot air heat preservation shell of rotary kiln

Abstract

The utility model relates to the technical field of rotary kilns, and discloses a rotary kiln hot air heat preservation shell which comprises a main body frame and rails, walking wheels are rotationally installed at the four corners of the bottom of the main body frame, the two walking wheels on the same side roll and walk along the rails on the same side, and first gear motors are fixedly installed on the two sides of the main body frame. At least one of the two walking wheels on the same side is connected and assembled with a first speed reducing motor; end shells are fixedly installed at the two ends of the main body frame, a sealing sleeve used for being in butt joint with a kiln body is arranged on the end shell at one end, a butt joint sleeve used for being inserted into a burner is arranged on the end shell at the other end, a top shell plate is fixedly installed at the top of the main body frame, and a side shell plate is hinged to the top shell plate. A driving assembly and a transmission assembly are installed on the upper side of the top shell plate. The discharge end of the kiln body can be exposed under small-range translation of the heat preservation shell and the combustor, the heat preservation shell and the combustor can enter the interior of the heat preservation shell from the side face, and the heat preservation shell and the combustor can be overhauled and maintained at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of rotary kilns, in particular to a hot air insulation shell of a rotary kiln. Background Art

[0002] The rotary kiln mainly includes the kiln head part, the kiln body part, the kiln tail part, the rotary bed kiln support frame, the preheating tower and other structures. The kiln head part is composed of the insulation shell, the sealing sleeve and the burner. One end of the insulation shell is provided with a sealing sleeve for connecting to the kiln body, and the other end of the insulation shell is inserted into the burner. When the burner is working, it will blow hot air into the kiln body, which is opposite to the material conveying direction in the kiln body to ensure the maximum thermal efficiency.

[0003] The currently used insulation shell and burner can be moved horizontally separately, which can realize the function of inspecting and maintaining the discharge end of the kiln body and the burner separately. Under the setting of limited space, they cannot be inspected and maintained at the same time, that is, when the insulation shell is not moving, after the burner is moved horizontally out of the insulation shell, only the burner can be inspected and maintained, and the discharge end of the kiln body cannot be inspected and maintained at the same time; after the insulation shell and the burner are moved, only the discharge end of the kiln body can be exposed, and inspection and maintenance can be carried out here, but the burner cannot be inspected and maintained, which affects the efficiency of inspection and maintenance.

[0004] Therefore, in order to solve the above problems, a rotary kiln hot air insulation shell is proposed. Utility Model Content

[0005] The purpose of the utility model is to provide a rotary kiln hot air insulation shell, which can be moved horizontally and opened from the side, and can simultaneously carry out maintenance work on the kiln discharge end and the burner, so as to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a rotary kiln hot air insulation shell, comprising a main frame and a track, wherein the track is two parallel tracks, and limit blocks are installed at both ends of the track, and walking wheels are rotatably installed at the four corners of the bottom of the main frame, and the two walking wheels on the same side roll along the track on the same side, and a first reduction motor is fixedly installed on both sides of the main frame, and at least one of the two walking wheels on the same side is connected and assembled with the first reduction motor; end shells are fixedly installed on both ends of the main frame, and the end shell at one end is provided with a sealing sleeve for docking with the kiln body, and the end shell at the other end is provided with a docking sleeve for inserting the burner, and a top shell plate is fixedly installed on the top of the main frame, and the top shell plate is hinged to the side shell plate, and a drive assembly and a transmission assembly are installed on the upper side of the top shell plate, and the transmission assembly is connected and assembled between the drive assembly and the side shell plate.

[0007] Specifically, the main frame includes a gantry frame and a connecting frame. The gantry frames are two symmetrically arranged, and a connecting frame is evenly fixedly installed between the two gantry frames. The first reduction motor is fixedly installed in the gantry frame, and the walking wheel is rotatably installed at the bottom of the gantry frame.

[0008] Furthermore, the distance between the lowest point of the connecting frame on both sides and the ground is at least 1.6 meters.

[0009] Specifically, one side or both sides of the top shell plate are hingedly connected with side shell plates, and accordingly, the transmission assembly is one or two are symmetrically arranged on both sides of the drive assembly.

[0010] Specifically, the transmission assembly includes a transmission shaft, a winding wheel and a steel cable. A pair or two pairs of bearing seats are fixedly installed on the upper side of the top shell plate. A transmission shaft is rotatably installed between each pair of bearing seats. The transmission shaft is fixedly installed with a winding wheel. One end of the steel cable is fixedly installed on the winding wheel. The other end of the steel cable is fixedly assembled with the top of the side shell plate.

[0011] Furthermore, there are 2 to 4 winding wheels on each of the transmission shafts.

[0012] Specifically, the drive assembly includes a driving gear, a driven gear and a second reduction motor. The second reduction motor is fixedly installed on the upper side of the top shell plate through a support seat. The output end of the second reduction motor is connected to the driving gear. The transmission shafts are fixedly installed with driven gears, and the driving gears are meshed and assembled between the driven gears.

[0013] Furthermore, the diameter of the driving gear is smaller than the diameter of the driven gear.

[0014] The beneficial effects of the present invention are as follows: the first reduction motor can drive the traveling wheels so that the whole body can move back and forth along the track; the side shell plates can be swung open and closed driven by the driving assembly and the transmission assembly, so that staff can enter from the side for inspection and maintenance; the heat-insulating shell and the burner can expose the discharge end of the kiln body within the original translation range, and inspection and maintenance can be carried out at the same time at both locations, thereby improving the inspection and maintenance efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic front view of the structure of the utility model;

[0016] Figure 2 This is a front view schematically showing the structure of the main frame of the utility model;

[0017] Figure 3 for Figure 1 Schematic cross-sectional view of the structure along the AA direction;

[0018] Figure 4 This is a schematic top view of the structure of the transmission assembly and the drive assembly of the present invention.

[0019] In the figure: 1 track, 2 end shell, 3 side shell plate, 4 sealing sleeve, 5 transmission assembly, 51 transmission shaft, 52 winding wheel, 53 steel cable, 54 bearing seat, 6 drive assembly, 61 driving gear, 62 driven gear, 63 second reduction motor, 7 walking wheel, 8 first reduction motor, 9 main frame, 10 top shell plate, 11 docking sleeve. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, the utility model provides a rotary kiln hot air insulation shell, including a main frame 9 and a track 1, two tracks 1 are arranged in parallel, and limit blocks are installed at both ends of the track 1, and walking wheels 7 are rotatably installed at the four corners of the bottom of the main frame 9. The two walking wheels 7 on the same side roll along the track 1 on the same side. Due to the arrangement of the walking wheels 7, the main frame 9 can move back and forth along the track 1; first reduction motors 8 are fixedly installed on both sides of the main frame 9, and at least one of the two walking wheels 7 on the same side is connected and assembled with the first reduction motor 8. According to the weight on the main frame 9, the number of matching first reduction motors 8 can be set to ensure that the walking wheels 7 have sufficient power to move as a whole.

[0022] End shells 2 are fixedly installed at both ends of the main frame 9. A sealing sleeve 4 for docking with the kiln body is provided at one end of the end shell 2, and a docking sleeve 11 for inserting the burner is provided at the other end of the end shell 2. A top shell plate 10 is fixedly installed on the top of the main frame 9, and the top shell plate 10 is hinged with a side shell plate 3; the top shell plate 10, the end shell 2 and the side shell plate 3 can form a complete thermal insulation shell on the outside of the main frame 9.

[0023] The drive assembly 6 and the transmission assembly 5 are installed on the upper side of the top shell plate 10. The transmission assembly 5 is connected and assembled between the drive assembly 6 and the side shell plate 3. The side shell plate 3 can be swung open by the drive assembly 6 and the transmission assembly 5, making it convenient for staff to enter the interior of the insulation shell from the side for maintenance.

[0024] This kind of insulation shell that can be moved horizontally and opened from the side can improve the convenience during maintenance.

[0025] Specifically, such as Figure 2 As shown, the main frame 9 includes a gantry frame 91 and a connecting frame 92. There are two symmetrical gantry frames 91. The connecting frame 92 is evenly fixedly installed between the two gantry frames 91. The gantry frame 91 and the connecting frame 92 form a solid supporting structure, providing an installation basis for other components. The first reduction motor 8 is fixedly installed in the gantry frame 91, which can reduce the occupation of the internal space of the main frame 9. The walking wheel 7 is rotatably installed at the bottom of the gantry frame 91. The walking wheel 7 supports the main frame 9 and is driven by the first reduction motor 8, so that the whole can move back and forth along the track 1.

[0026] The distance between the lowest connecting frame 92 on both sides and the ground is at least 1.6 meters to ensure that the staff and the tools they carry can enter the interior of the main frame 9 from both sides and smoothly inspect and maintain the internal structure and equipment.

[0027] Optionally, depending on the installation space and maintenance requirements, side shell plates 3 are hinged on one or both sides of the top shell plate 10, which makes it convenient for staff to enter the insulation shell from one or both sides. Accordingly, the transmission assembly 5 is one or two symmetrically arranged on both sides of the drive assembly 6 to match the control shell plate 10.

[0028] Specifically, such as Figure 3 and Figure 4 As shown, the transmission assembly 5 includes a transmission shaft 51, a winding wheel 52 and a steel cable 53. A pair or two pairs of bearing seats 54 are fixedly installed on the upper side of the top shell plate 10. The number of pairs of bearing seats 54 is matched and arranged according to the number of side shell plates 3. A transmission shaft 51 is rotatably installed between each pair of bearing seats 54. The transmission shaft 51 is fixedly installed with a winding wheel 52. The winding wheel 52 is fixedly installed with one end of the steel cable 53, and the other end of the steel cable 53 is fixedly assembled with the top of the side shell plate 3; the transmission shaft 51 can rotate at the same time, driving the winding wheel 52 to reel in or release the steel cable 53, thereby driving the side shell plate 3 to swing around the hinge as the center to achieve the opening and closing action.

[0029] Furthermore, there are 2 to 4 winding wheels 52 on each transmission shaft 51 , and the number of the winding wheels 52 is adjusted according to the weight of the side shell plate 3 to ensure the strength and uniformity of the tension applied to the side shell plate 3 .

[0030] Specifically, the drive assembly 6 includes a driving gear 61, a driven gear 62 and a second reduction motor 63. The second reduction motor 63 is fixedly installed on the upper side of the top shell plate 10 through a support seat. The output end of the second reduction motor 63 is connected to the driving gear 61, and the transmission shaft 51 is fixedly installed with a driven gear 62. The driving gear 61 is meshed and assembled between the driven gears 62; after the second reduction motor 63 rotates the driving gear 61 in the forward and reverse directions, the meshed driven gear 62 can rotate the transmission shaft 51 synchronously and in the same direction.

[0031] Furthermore, the diameter of the driving gear 61 is smaller than the diameter of the driven gear 62 , which plays a role in reducing speed and increasing torque, thereby ensuring the torque on the transmission shaft 51 .

[0032] The first reduction motor 8 and the second reduction motor 63 are electrically connected to an external control box through wires.

[0033] The working principle of this embodiment is as follows:

[0034] The burner also moves on the track 1 through the running wheels 7 installed at the bottom. The output end of the burner is inserted into the docking sleeve 11 and fixed with screws. In this way, the burner can be moved horizontally with the insulation shell, without having to move separately as in the traditional way.

[0035] When carrying out inspection and maintenance work, the first reduction motor 8 is controlled to be powered on by the button on the control box, and the traveling wheel 7 can move along the track 1, moving the entire insulation shell and the burner away from the kiln body until the entire output end of the kiln body is exposed. In addition, the second reduction motor 63 is controlled to be powered on by the button on the control box, and after transmission, the winding wheel 52 is rotated in the same direction at the same time, and the side shell plate 3 is pulled up by the wound steel cable 53. When the translation amplitude is the same as the traditional translation distance, it is convenient for the inspection and maintenance personnel to inspect and maintain the output end of the kiln body and the burner at the same time, thereby improving the inspection and maintenance efficiency.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0037] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A rotary kiln hot air insulation shell, characterized by: The invention comprises a main frame (9) and a track (1), wherein the track (1) is two parallel tracks, and limit blocks are installed at both ends of the track (1); the four corners of the bottom of the main frame (9) are all rotatably installed with running wheels (7); the two running wheels (7) on the same side roll along the track (1) on the same side; the first reduction motor (8) is fixedly installed on both sides of the main frame (9); and at least one of the two running wheels (7) on the same side is connected and assembled with the first reduction motor (8); End shells (2) are fixedly installed at both ends of the main frame (9), a sealing sleeve (4) for docking with the kiln body is provided at one end of the end shell (2), and a docking sleeve (11) for inserting the burner is provided at the other end of the end shell (2). A top shell plate (10) is fixedly installed on the top of the main frame (9), and the top shell plate (10) is hinged with a side shell plate (3). A drive assembly (6) and a transmission assembly (5) are installed on the upper side of the top shell plate (10), and the transmission assembly (5) is connected and assembled between the drive assembly (6) and the side shell plate (3).

2. The hot air insulation shell of a rotary kiln according to claim 1, characterized in that: The main frame (9) includes a gantry frame (91) and a connecting frame (92), wherein the gantry frames (91) are two symmetrically arranged, and the connecting frame (92) is evenly fixedly installed between the two gantry frames (91). The first reduction motor (8) is fixedly installed in the gantry frame (91), and the walking wheel (7) is rotatably installed at the bottom of the gantry frame (91).

3. The hot air insulation shell of a rotary kiln according to claim 2, characterized in that: The distance between the lowest connecting frame (92) on both sides and the ground is at least 1.6 meters.

4. The hot air insulation shell of a rotary kiln according to claim 1, characterized in that: One side or both sides of the top shell plate (10) are hingedly connected to a side shell plate (3), and accordingly, the transmission assembly (5) is one or two symmetrically arranged on both sides of the drive assembly (6).

5. The hot air insulation shell of a rotary kiln according to claim 4, characterized in that: The transmission assembly (5) comprises a transmission shaft (51), a reel (52) and a steel cable (53); a pair or two pairs of bearing seats (54) are fixedly mounted on the upper side of the top shell plate (10); a transmission shaft (51) is rotatably mounted between each pair of bearing seats (54); a reel (52) is fixedly mounted on the transmission shaft (51); one end of the steel cable (53) is fixedly mounted on the reel (52); and the other end of the steel cable (53) is fixedly assembled with the top of the side shell plate (3).

6. The hot air insulation shell of a rotary kiln according to claim 5, characterized in that: There are 2 to 4 winding wheels (52) on each transmission shaft (51).

7. The hot air insulation shell of a rotary kiln according to claim 5, characterized in that: The driving assembly (6) includes a driving gear (61), a driven gear (62) and a second reduction motor (63). The second reduction motor (63) is fixedly mounted on the upper side of the top shell plate (10) through a support seat. The output end of the second reduction motor (63) is connected to the driving gear (61). The transmission shaft (51) is fixedly mounted with a driven gear (62). The driving gear (61) is meshed and assembled between the driven gears (62).

8. The hot air insulation shell of a rotary kiln according to claim 7, characterized in that: The diameter of the driving gear (61) is smaller than the diameter of the driven gear (62).

Images