Lime kiln dust removal system
By using filter cartridges and U-shaped liquid storage ring plate structures in the lime kiln dust removal system, the contact area between the exhaust gas and the heat exchange medium is increased, and the filter cartridges are cleaned by a motor-driven cleaning component. This solves the problem of slow exhaust gas cooling speed and achieves efficient exhaust gas cooling and filtration effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN LIANGANG METALLURGICAL MATERIALS TECH CO LTD
- Filing Date
- 2025-06-09
- Publication Date
- 2026-05-08
AI Technical Summary
In existing lime kiln dust removal systems, the contact area between exhaust gas and heat exchange medium is limited, and the heat transfer path is singular, resulting in insufficient and uneven heat exchange and slow cooling rate.
The dust collector is equipped with a filter element and liquid pipeline inside, and a U-shaped liquid storage ring plate is fitted on the surface to increase the contact area between the exhaust gas and the heat exchange medium. The filter element is cleaned by a drive motor that drives the rotating rod and rotating plate, thus optimizing the heat exchange path.
It achieves rapid, thorough and uniform cooling of exhaust gas, improves cooling efficiency, ensures stable operation of subsequent treatment processes, and enhances filtration efficiency.
Smart Images

Figure CN224215865U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of dust removal technology, and in particular to a dust removal system for lime kilns. Background Technology
[0002] In lime kiln production, limestone is calcined at high temperatures, generating dusty and high-temperature waste gas. If this waste gas is directly emitted, it will not only cause serious dust pollution, threatening the ecological environment and human health, but also waste a lot of heat energy, which is not in line with the concept of energy conservation.
[0003] Existing lime kiln dust removal systems often employ simple heat exchange structures for high-temperature exhaust gases. The limited contact area between the exhaust gas and the heat exchange medium, along with the single heat transfer path, results in insufficient and uneven heat exchange, slow cooling, and an inability to quickly reduce the exhaust gas temperature to a range suitable for subsequent treatment or emission. Utility Model Content
[0004] The purpose of this invention is to solve the problems in the existing technology, such as the limited contact area between the exhaust gas and the heat exchange medium, the single heat transfer path, resulting in insufficient and uneven heat exchange and slow cooling rate, and to propose a dust removal system for lime kilns.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a lime kiln dust removal system, comprising a dust removal tank, a filter element inside the dust removal tank, a liquid pipe sleeved on the surface of the filter element, a U-shaped liquid storage ring plate sleeved and fixedly connected to the surface of the dust removal tank, the bottom end of the liquid pipe penetrating the dust removal tank and fixedly connected thereto, the top end of the liquid pipe penetrating the dust removal tank and the U-shaped liquid storage ring plate and fixedly connected thereto, and a fixed cover fixedly connected to the top of the dust removal tank; and a cleaning component installed inside the filter element.
[0006] Preferably, the surface of the U-shaped liquid storage ring plate is fixed and connected to a liquid outlet pipe near the top.
[0007] Preferably, the cleaning assembly includes a rotating rod, the top of which passes through a fixed cover and is rotatably connected to its bearing. A rotating plate is fitted and fixedly connected to the surface of the rotating rod and near both ends. A cleaning plate is fixedly connected to both ends of the rotating plate. A drive motor is fixedly connected to the top of the fixed cover, and the output end of the drive motor is fixedly connected to the top of the rotating rod.
[0008] Preferably, the surface of the fixed cover is fixed and connected to an air inlet pipe, and the surface of the dust collector and near the bottom is fixed and connected to an air outlet pipe.
[0009] Preferably, the bottom of the dust collector is fixed and connected to a threaded ring plate, a U-shaped ring plate is sleeved and threadedly connected to the surface of the threaded ring plate, the top of the U-shaped ring plate is fixedly connected to the bottom of the filter element, and a waste discharge pipe is fixed and connected to the bottom of the U-shaped ring plate.
[0010] Preferably, the U-shaped ring plate has a sealing ring gasket inside, and a solenoid valve is fixedly installed on the surface of the waste discharge pipe near the bottom.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. In this utility model, by rationally arranging liquid pipelines, U-shaped liquid storage ring plates and other structures, the contact area between high-temperature waste gas and heat exchange medium is increased, and the heat exchange path is optimized, which can quickly, fully and uniformly cool the waste gas, greatly improve the cooling efficiency, and ensure the stable operation of subsequent waste gas treatment processes.
[0013] 2. In this utility model, the drive motor can drive the rotating rod to rotate, the rotating rod can drive the rotating plate to rotate, and the rotating plate can drive the cleaning plate to rotate. This can enable the cleaning component to clean the impurity particles adsorbed on the surface of the filter element, thereby improving the filtration efficiency. Attached Figure Description
[0014] Figure 1 This utility model provides a three-dimensional view of the overall structure of a lime kiln dust removal system;
[0015] Figure 2 This utility model provides an overall structural cross-sectional view of a lime kiln dust removal system;
[0016] Figure 3 This utility model presents a partial three-dimensional structural view of a dust removal system for a lime kiln.
[0017] Legend: 1. Dust collector; 2. Filter element; 3. Liquid pipe; 4. U-shaped liquid storage ring plate; 5. Liquid outlet pipe; 6. Fixing cover; 7. Cleaning assembly; 71. Rotating rod; 72. Rotating plate; 73. Cleaning plate; 74. Drive motor; 8. Air inlet pipe; 9. Air outlet pipe; 10. Threaded ring plate; 11. U-shaped ring plate; 12. Sealing ring gasket; 13. Waste discharge pipe; 14. Solenoid valve. Detailed Implementation
[0018] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0019] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Example 1, as Figure 1-3 As shown, this utility model provides a lime kiln dust removal system, including a dust removal tank 1, a filter element 2 inside the dust removal tank 1, a liquid pipe 3 on the surface of the filter element 2, a U-shaped liquid storage ring plate 4 on the surface of the dust removal tank 1 and fixedly connected thereto, the bottom end of the liquid pipe 3 passing through the dust removal tank 1 and fixedly connected thereto, the top end of the liquid pipe 3 passing through the dust removal tank 1 and the U-shaped liquid storage ring plate 4 and fixedly connected thereto, and a fixed cover 6 fixedly connected to the top of the dust removal tank 1; and a cleaning component 7 installed inside the filter element 2.
[0021] The overall effect of embodiment 1 is as follows: the filter element 2 inside the dust collector 1 can filter the exhaust gas; a liquid pipe 3 is sleeved on the surface of the filter element 2; a U-shaped liquid storage ring plate 4 is sleeved and fixedly connected to the surface of the dust collector 1; the bottom end of the liquid pipe 3 passes through the dust collector 1 and is fixedly connected to it; the top end of the liquid pipe 3 passes through the dust collector 1 and the U-shaped liquid storage ring plate 4 and is fixedly connected to it; this allows water passing through the hydraulic pipe 3 to enter the U-shaped liquid storage ring plate 4; a fixing cover 6 is fixedly connected to the top of the dust collector 1; and a cleaning component 7 is installed inside the filter element 2 to clean the inside of the filter element 2.
[0022] Example 2, as Figure 1-3 As shown, the surface of the U-shaped liquid storage ring plate 4 is fixed and connected to the liquid outlet pipe 5 near the top; the cleaning assembly 7 includes a rotating rod 71, the top of which passes through the fixed cover 6 and is rotatably connected to its bearing; rotating plates 72 are fitted and fixedly connected to the surface of the rotating rod 71 near both ends; cleaning plates 73 are fixedly connected to both ends of the rotating plates 72; a drive motor 74 is fixedly connected to the top of the fixed cover 6; the output end of the drive motor 74 is fixedly connected to the top of the rotating rod 71; an air inlet pipe 8 is fixed and connected to the surface of the fixed cover 6; an air outlet pipe 9 is fixed and connected to the surface of the dust collector 1 near the bottom; a threaded ring plate 10 is fixed and connected to the bottom of the dust collector 1; a U-shaped ring plate 11 is fitted and threadedly connected to the surface of the threaded ring plate 10; the top of the U-shaped ring plate 11 is fixedly connected to the bottom of the filter element 2; a discharge pipe 13 is fixed and connected to the bottom of the U-shaped ring plate 11; a sealing ring gasket 12 is provided inside the U-shaped ring plate 11; a solenoid valve 14 is fixedly installed on the surface of the discharge pipe 13 near the bottom.
[0023] The overall effect of Embodiment 2 is that, through the U-shaped liquid storage ring plate 4, which is fixed and connected to the top of the liquid outlet pipe 5, the liquid inside the U-shaped liquid storage ring plate 4 can be discharged from the liquid outlet pipe 5; the cleaning assembly 7 includes a rotating rod 71, the top of which passes through the fixed cover 6 and is rotatably connected to its bearing; rotating plates 72 are sleeved and fixedly connected to the surface of the rotating rod 71 near both ends; cleaning plates 73 are fixedly connected to both ends of the rotating plate 72; a drive motor 74 is fixedly connected to the top of the fixed cover 6; the output end of the drive motor 74 is fixedly connected to the top of the rotating rod 71, which allows the drive motor 74 to drive the rotating rod 71 to rotate, the rotating rod 71 to drive the rotating plate 72 to rotate, and the rotating plate 72 to drive the cleaning plate 73 to rotate; through the surface of the fixed cover 6, which is fixed and connected to the liquid outlet pipe 5, the liquid inside the U-shaped liquid storage ring plate 4 can be discharged from the liquid outlet pipe 5; the cleaning assembly 7 includes a rotating rod 71, the top of which passes through the fixed cover 6 and is rotatably connected to the bearing; rotating plates 72 are sleeved and fixedly connected to the surface of the rotating rod 71 near both ends; cleaning plates 73 are fixedly connected to the bearing 73; the cleaning assembly 7 includes a rotating rod 71, which passes through the fixed cover 6 and is rotatably connected to the bearing 6; rotating plates 72 are sleeved and fixedly connected to the bearing 72; cleaning plates 73 are fixedly connected to the bearing 73; cleaning assembly 73 is rotatably ... An air inlet pipe 8 is fixed to the surface of the dust collector 1 near the bottom and connected to an air outlet pipe 9, which can serve the purpose of air intake and exhaust. A threaded ring plate 10 is fixed to and connected to the bottom of the dust collector 1. A U-shaped ring plate 11 is fitted onto the surface of the threaded ring plate 10 and threadedly connected to it. The top of the U-shaped ring plate 11 is fixedly connected to the bottom of the filter element 2. A discharge pipe 13 is fixed to and connected to the bottom of the U-shaped ring plate 11, which can enable the U-shaped ring plate 11 to be installed on the threaded ring plate 10, thereby enabling the filter element 2 to be installed and fixed. A sealing ring gasket 12 is provided inside the U-shaped ring plate 11, which can seal the U-shaped ring plate 11 and the threaded ring plate 10. A solenoid valve 14 is fixedly installed on the surface of the discharge pipe 13 near the bottom, which can control the discharge pipe 13.
[0024] Working principle: After the exhaust gas enters through the intake pipe 8, the exhaust gas passes through the filter element 2 to filter particles. Water enters from the top of the liquid pipe 3. When the water passes through the liquid pipe 3, it enters the U-shaped liquid storage ring plate 4. When the liquid level inside the U-shaped liquid storage ring plate 4 exceeds the liquid outlet pipe 5, the water can be discharged. At the same time, the water can cool the exhaust gas. During the process of the water passing through the liquid pipe 3 and the U-shaped liquid storage ring plate 4, the exhaust gas can continuously heat the water, which can improve the cooling efficiency and ensure the stable operation of the subsequent exhaust gas treatment process. The drive motor 74 can drive the rotating rod 71 to rotate. The rotation of the rotating rod 71 can drive the rotating plate 72 to rotate. The rotation of the rotating plate 72 can drive the cleaning plate 73 to rotate, which can clean the impurities on the inner wall of the filter element 2. At the same time, the opening of the solenoid valve 14 can discharge the impurities.
[0025] The wiring diagrams of the drive motor 74 and the solenoid valve 14 in this utility model are common knowledge in the field. Their working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the drive motor 74 and the solenoid valve 14 will not be explained in detail.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A dust removal system for a lime kiln, comprising a dust collection tank (1), characterized in that: The dust collector (1) is equipped with a filter element (2) inside. A liquid pipe (3) is fitted on the surface of the filter element (2). A U-shaped liquid storage ring plate (4) is fitted on and fixedly connected to the surface of the dust collector (1). The bottom end of the liquid pipe (3) passes through the dust collector (1) and is fixedly connected to it. The top end of the liquid pipe (3) passes through the dust collector (1) and the U-shaped liquid storage ring plate (4) and is fixedly connected to them. A fixed cover (6) is fixedly connected to the top of the dust collector (1). Cleaning component (7) is installed inside filter element (2).
2. The lime kiln dust removal system according to claim 1, characterized in that: The surface of the U-shaped liquid storage ring plate (4) and near the top are fixed and connected to the liquid outlet pipe (5).
3. The lime kiln dust removal system according to claim 1, characterized in that: The cleaning assembly (7) includes a rotating rod (71), the top of which passes through the fixed cover (6) and is rotatably connected to its bearing. A rotating plate (72) is fitted and fixedly connected to both ends of the rotating rod (71). A cleaning plate (73) is fixedly connected to both ends of the rotating plate (72). A drive motor (74) is fixedly connected to the top of the fixed cover (6), and the output end of the drive motor (74) is fixedly connected to the top of the rotating rod (71).
4. The lime kiln dust removal system according to claim 1, characterized in that: The surface of the fixed cover (6) is fixed and connected to the air inlet pipe (8), and the surface of the dust collector (1) and near the bottom is fixed and connected to the air outlet pipe (9).
5. A lime kiln dust removal system according to claim 1, characterized in that: The bottom of the dust collector (1) is fixed and connected to a threaded ring plate (10). A U-shaped ring plate (11) is fitted and threaded onto the surface of the threaded ring plate (10). The top of the U-shaped ring plate (11) is fixedly connected to the bottom of the filter element (2). The bottom of the U-shaped ring plate (11) is fixed and connected to a waste discharge pipe (13).
6. A lime kiln dust removal system according to claim 5, characterized in that: The U-shaped ring plate (11) is provided with a sealing ring gasket (12) inside, and a solenoid valve (14) is fixedly installed on the surface of the discharge pipe (13) near the bottom.