Kiln head ash leakage treatment device of kaolin calcination rotary kiln
By installing an arc dust collector and dust collector device at the kiln head of the kaolin calcined rotary kiln, the problem of high-temperature dust overflow is solved, the environment and workers' health is protected, and the economic benefits of the enterprise are improved.
Patent Information
- Application Number
- CN202421755552.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-23
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-07-23
AI Technical Summary
Due to the poor sealing of the kiln head of the kaolin calcined rotary kiln, high-temperature dust is prone to overflow, polluting the environment and posing a hidden danger to the health of workers.
A kiln head ash leakage treatment device is designed, including an arc dust collector and a dust collector. The overflowing dust is captured through the arc dust collector, and the dust is collected and transported to the discharge pipe by using the dust collector and processed together with the finished kaolin product.
Effectively prevent high-temperature dust from overflowing, protect the on-site environment, ensure the safety and health of workers, and avoid the waste of finished kaolin products and improve the economic benefits of enterprises.
Smart Images
Figure CN222964385U_ABST
Abstract
Description
Technical Field:
[0001] The utility model relates to the technical field of kaolin production, in particular to a device for treating ash leakage at the kiln head of a kaolin calcination rotary kiln. Background Art:
[0002] Kaolin finished products are ultra-white and ultra-fine powders, mainly used in papermaking, ceramics, medicine, printing ink, coatings, etc., and have very wide uses. At present, the pulverized coal gangue of kaolin finished products enters the kiln from the kiln tail of the calcination rotary kiln through a screw conveyor, and gradually moves towards the kiln head direction along with the rotation of the kiln. After being calcined at a high temperature of 950 - 1100 °C in the kiln for dehydroxylation and decarburization and whitening, kaolin finished product clinker is formed, and finally discharged from the discharge port at the bottom of the kiln head hood; at present, the connection between the calcination rotary kiln and the kiln head hood is sealed by fish scales and snap rings. Since the inside of the calcination rotary kiln is in a positive pressure environment, the calcined kaolin powder will still overflow from the gap above between the fish scales and the calcination rotary kiln along with the high-temperature gas, polluting the on-site environment and posing a health hazard to workers. Content of the Utility Model:
[0003] The purpose of the utility model is to provide a device for treating ash leakage at the kiln head of a kaolin calcination rotary kiln, which has a simple connection structure, protects the on-site environment, and improves the economic benefits of the enterprise.
[0004] The utility model is implemented by the following technical solutions: The purpose of this patent is to provide a device for treating ash leakage at the kiln head of a kaolin calcination rotary kiln, which includes a rotary kiln body, a kiln head hood, a plurality of fish scales, a snap ring, an arc-shaped dust removal hood, and a dust removal fan; the kiln head hood is arranged at the head of the rotary kiln body, one end of the fish scale is fixed on the kiln head hood, the other end of the fish scale is in contact with the outer wall of the rotary kiln body, and the snap ring is sleeved on the outer periphery of the fish scale; the arc-shaped dust removal hood is arranged outside the fish scale, one side of the arc-shaped dust removal hood is fixed on the kiln head hood, and the other side of the arc-shaped dust removal hood is connected with the outer wall of the rotary kiln body through a flexible connection; the air outlet at the top of the arc-shaped dust removal hood is communicated with the air inlet of the dust removal fan through a pipeline.
[0005] Further, a discharge pipe is communicated and arranged at the discharge port of the kiln head hood, and the air outlet of the dust removal fan is communicated with the discharge pipe through a conveying pipe.
[0006] Further, the included angle between the discharge direction of the conveying pipe and the discharge direction of the discharge pipe is 15 - 45°.
[0007] Advantages of the present utility model: 1. The connection structure of the present utility model is simple and easy to implement. By setting an arc-shaped dust removal hood and a dust removal fan, the high-temperature dust overflowing from the gap above between the fish scales and the calcination rotary kiln can be effectively removed, protecting the on-site environment and thus ensuring the safety and health of workers.
[0008] 2. The dust removal fan directly sends the dust as the finished kaolin product to the discharge pipe and sends it to the next process together with the finished kaolin product discharged from the calcination rotary kiln, avoiding waste of the finished kaolin product and improving the economic benefits of the enterprise; at the same time, blowing gas into the discharge pipe to ensure smooth feeding in the discharge pipe.
[0009] 3. Directly sending the collected dust to the next process together with the finished kaolin product realizes the direct recovery of the dust, thereby reducing the investment in dust removal equipment and further reducing the fixed asset investment of the enterprise. Description of the drawings:
[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0011] Figure 1 It is a schematic diagram of the overall structure of the present utility model.
[0012] Figure 2 It is Figure 1 a schematic cross-sectional view of part A-A in
[0013] Rotary kiln body 1, kiln head hood 2, fish scales 3, snap ring 4, arc-shaped dust removal hood 5, dust removal fan 6, discharge pipe 7, conveying pipe 8. Specific implementation manners:
[0014] Embodiment: As Figure 1-2As shown in the figure, a device for treating ash leakage at the kiln head of a kaolin calcining rotary kiln includes a rotary kiln body 1, a kiln head hood 2, several fish scales 3, a snap ring 4, an arc-shaped dust removal hood 5, and a dust removal fan 6; a kiln head hood 2 is provided at the head of the rotary kiln body 1, one end of the fish scale 3 is fixed on the kiln head hood 2, the other end of the fish scale 3 is in contact with the outer wall of the rotary kiln body 1, and a snap ring 4 is sleeved on the outer periphery of the fish scale 3; an arc-shaped dust removal hood 5 is provided outside the fish scale 3, one side of the arc-shaped dust removal hood 5 is fixed on the kiln head hood 2, and the other side of the arc-shaped dust removal hood 5 is connected to the outer wall of the rotary kiln body 1 through a flexible connection; the air outlet at the top of the arc-shaped dust removal hood 5 is communicated with the air inlet of the dust removal fan 6 through a pipeline, which can effectively remove the high-temperature dust overflowing from the upper gap between the fish scale 3 and the calcining rotary kiln, protect the on-site environment, and thus ensure the safety and health of workers.
[0015] A discharge pipe 7 is communicated and provided at the discharge port of the kiln head hood 2, the discharge port of the dust removal fan 6 is communicated and provided with the discharge pipe 7 through a conveying pipe 8, and the included angle between the discharge direction of the conveying pipe 8 and the discharge direction of the discharge pipe 7 is 15 - 45°. This not only realizes the recovery of kaolin finished products, avoids the waste of kaolin finished products, and improves the economic benefits of the enterprise, but also blows gas into the discharge pipe 7 to ensure smooth discharging in the discharge pipe 7; the connection structure of the present utility model is simple and easy to implement; the collected dust is directly sent to the next process together with the kaolin finished products, realizing the direct recovery of dust, thereby reducing the investment in dust removal equipment and further reducing the fixed asset investment of the enterprise.
[0016] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A device for treating ash leakage from a kiln head of a kaolin calcining rotary kiln, characterized in that: The utility model comprises a rotary kiln body, a kiln head cover, a plurality of fish scales, a clamping ring, an arc-shaped dust removal cover and a dust removal fan; the kiln head cover is arranged at the head of the rotary kiln body, one end of the fish scale is fixed on the kiln head cover, the other end of the fish scale is in contact with the outer wall of the rotary kiln body, and the clamping ring is sleeved on the outer periphery of the fish scale; the arc-shaped dust removal cover is arranged on the outer side of the fish scale, one side of the arc-shaped dust removal cover is fixed on the kiln head cover, and the other side of the arc-shaped dust removal cover is connected to the outer wall of the rotary kiln body through a soft connection; the air outlet on the top of the arc-shaped dust removal cover is connected with the air inlet of the dust removal fan through a pipeline.
2. The device for treating ash leakage from the kiln head of a kaolin calcining rotary kiln according to claim 1, characterized in that: A discharge pipe is connected to the discharge port of the kiln head cover, and the air outlet of the dust removal fan is connected to the discharge pipe through a conveying pipe.
3. The device for treating ash leakage from a kiln head of a kaolin calcining rotary kiln according to claim 2, characterized in that: The angle between the discharge direction of the feed pipe and the discharge direction of the discharge pipe is 15-45°.