Rotary kiln for quick lime production
By installing a shock device and anti-sticking cone at the feed end of the rotary kiln and using shock balls to prevent material adhesion, the ring formation problem of the rotary kiln is solved, and production stability and equipment life are improved.
Patent Information
- Application Number
- CN202422569070.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-24
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-24
AI Technical Summary
During the quicklime production process, ring formation in the rotary kiln often affects the roasting effect, increases wear on the support wheels and bearings, and increases the load on the motor. The existing cleaning method is post-processing and cannot prevent the formation of rings.
A shock device is installed outside the feeding end of the rotary kiln to shock the kiln body with a shock ball. Combined with the anti-sticking cone design, it prevents material from sticking. The movement of the shock ball causes the sticking material to fall off, preventing the formation of rings.
It can effectively prevent rotary kiln ring formation, improve production stability, reduce wear of supporting wheels and bearings, reduce motor load and improve production efficiency.
Smart Images
Figure CN223329213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of quicklime production equipment, in particular to a rotary kiln for quicklime production. Background Art
[0002] Quicklime, also known as burnt lime, is mainly composed of calcium oxide. The preparation of quicklime is usually to calcine natural rocks whose main component is calcium carbonate at high temperature. During this process, calcium carbonate will decompose to produce carbon dioxide and calcium oxide. The production process of modern quicklime has been highly mechanized, using rotary kilns, boiling furnaces and other equipment for production. The calcination time is greatly shortened and the production efficiency is significantly improved. However, during the calcination process of the rotary kiln, ring formation often occurs. The location of the ring formation in the rotary kiln is generally at the refractory kiln lining near the concentrated combustion point of the solid fuel at a certain distance from the kiln mouth. In particular, once the kiln ring is formed, it will inevitably hinder the hot air flow generated by the burning of the fuel, affecting the roasting effect of the lime. The ring will block the material flow. At this time, the amount of material blocked is much higher than normal. In addition, the weight of the ring itself will inevitably increase the wear of the supporting wheels and bearings. At the same time, the load on the motor will be increased, and it may even burn out. The current process adopts shutdown cleaning or other methods such as demolition during the production process for cleaning, but these are all cleaned after the ring is formed. The present application provides a rotary kiln for quicklime production that can prevent the formation of rings. Utility Model Content
[0003] In view of the above technical problems, the utility model provides a rotary kiln for quicklime production which can prevent ring formation.
[0004] In order to solve the above technical problems, the utility model describes a rotary kiln for quicklime production, comprising a kiln body, a front support, and a rear support. The kiln body is installed at an angle, and the higher end of the kiln body is fixedly connected to a feed port, and the other end is fixedly connected to a discharge port. A gear ring and a roller ring are fixedly connected to the outside of the kiln body. Two motors are fixedly connected to the front support, and a gear is fixedly connected to the motor output shaft, and the gear is meshed with the gear ring. Two rollers are rotatably connected to the rear support, and the rollers are embedded in the roller ring and rotatably connected to it. A shock device is fixedly connected to the end of the outer side of the kiln body near the feed port, and a number of anti-sticking cones are fixedly connected to the end of the inner side of the kiln body near the feed port.
[0005] The shock device comprises a guide cylinder, which is fixedly connected to the kiln body. A shock ball is arranged in the guide cylinder, and a magnet is fixedly connected to one end of the guide cylinder away from the kiln body.
[0006] Furthermore, the attraction between the shock ball and the magnet is smaller than the gravity of the shock ball itself.
[0007] Furthermore, the anti-sticking cone is in the shape of a cone with a smooth surface.
[0008] Compared with the prior art, the present invention has the following advantages:
[0009] The utility model provides a vibration device on the outside of the kiln feeding end, and drives a vibration ball to vibrate the kiln body when the rotary kiln rotates, thereby preventing materials from adhering to the inner wall of the kiln body; an anti-sticking cone is fixedly connected to the inner side of the kiln feeding end, so that when the adhered materials move to the top, the vibration ball vibrates the kiln body, and the materials can fall off more easily. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 This is a schematic structural diagram of the utility model.
[0011] Figure 2 It is a top view of the utility model.
[0012] Figure 3 Schematic diagram of the shock device structure.
[0013] In the figure: 1. kiln body, 2. gear ring, 3. roller ring, 4. feed port, 5. discharge port, 6. anti-sticking cone, 7. shock device, 701. guide cylinder, 702. shock ball, 703. magnet, 8. front support, 9. rear support, 10. motor, 11. gear, 12. roller. DETAILED DESCRIPTION
[0014] The present invention will be further described below with reference to the accompanying drawings.
[0015] like Figures 1 to 3 The rotary kiln for quicklime production shown in the figure includes a kiln body 1, a front support 8, and a rear support 9. The kiln body 1 is installed at an angle. The higher end of the kiln body 1 is fixedly connected to the feed port 4, and the other end is fixedly connected to the discharge port 5. The outside of the kiln body 1 is fixedly connected to a gear ring 2 and a roller ring 3. Two motors 10 are fixedly connected to the front support 8. A gear 11 is fixedly connected to the output shaft of the motor 10, and the gear 11 is engaged with the gear ring 2. Two rollers 12 are rotatably connected to the rear support 9. The rollers 12 are embedded in the roller ring 3 and are rotatably connected to it. The stability of the device operation is ensured by the two gears 11 and the two rollers 12. Four shock devices 7 are fixedly connected to the end of the outside of the kiln body 1 near the feed port 4, and several anti-sticking cones 6 are fixedly connected to the end of the inside of the kiln body 1 near the feed port 4, so that when the adhered material moves to the top, the shock device 7 shocks the kiln body 1, and the material can fall off more easily.
[0016] The shock device 7 includes a guide tube 701 , which is fixedly connected to the kiln body 1 . A shock ball 702 is provided in the guide tube 701 , and a magnet 703 is fixedly connected to one end of the guide tube 701 away from the kiln body 1 .
[0017] In order to provide sufficient potential energy for the shocking ball 702 when it falls, the suction force between the shocking ball 702 and the magnet 703 is smaller than the gravity of the shocking ball 702 itself, so that the shocking ball 702 can be attracted by the magnet 703 and brought to a certain height before falling to shock.
[0018] In order to facilitate the removal of adhered materials when the shock ball 702 shocks the kiln body 1, the anti-sticking cone 6 is in the shape of a cone with a smooth surface.
[0019] The working process of this embodiment is as follows:
[0020] During operation, the motor 10 is turned on, and the motor 10 drives the kiln body 1 to rotate through the gear 11 and the gear ring 2. The material enters the kiln body 1 through the feed port 4 and is discharged from the discharge port 5 after calcination and preliminary cooling. Among them: when the kiln body 1 rotates, the shock ball 702 in the guide cylinder 701 moves up and down to achieve shocking the kiln body 1, so that the material adhering to the refractory kiln lining near the combustion point falls off, avoiding the formation of "kiln ring", and the anti-sticking cone 6 can move the adhering material to the top. When the shock ball 702 shocks the kiln body 1, the adhering material can fall off more easily, and the magnet 703 can exert a certain attraction on the shock ball 702, so that the shock ball 702 moves along the guide cylinder 701 to a certain height and then falls, ensuring the shock effect.
Claims
1. A rotary kiln for producing quicklime, comprising a kiln body (1), a front support (8), and a rear support (9), wherein the kiln body (1) is installed at an angle, a higher end of the kiln body (1) is fixedly connected to a feed port (4), and the other end is fixedly connected to a discharge port (5), a gear ring (2) and a roller ring (3) are fixedly connected to the outer side of the kiln body (1), two motors (10) are fixedly connected to the front support (8), a gear (11) is fixedly connected to the output shaft of the motor (10), and the gear (11) is meshed with the gear ring (2), and two rollers (12) are rotatably connected to the rear support (9), and the rollers (12) are embedded in the roller ring (3) and rotatably connected thereto, characterized in that: The outer end of the kiln body (1) close to the feed port (4) is fixedly connected to a shock device (7), and the inner end of the kiln body (1) close to the feed port (4) is fixedly connected to a plurality of anti-sticking cones (6). The shock device (7) comprises a guide tube (701), the guide tube (701) is fixedly connected to the kiln body (1), a shock ball (702) is arranged in the guide tube (701), and a magnet (703) is fixedly connected to one end of the guide tube (701) away from the kiln body (1).
2. The rotary kiln for quicklime production according to claim 1, wherein: The attraction between the shock ball (702) and the magnet (703) is smaller than the gravity of the shock ball (702).
3. The rotary kiln for quicklime production according to claim 1, wherein: The anti-sticking cone (6) is in the shape of a cone with a smooth surface.