Multifunctional rotary kiln production line for drying, calcining and volatilizing
By introducing components such as dust removal pipes, cooling plates, fans, pulse dust collectors, and heat insulation layers into the rotary kiln production line, the problems of condensation and equipment damage in high-temperature flue gas treatment have been solved, achieving efficient dust removal and energy-saving and environmentally friendly effects.
Patent Information
- Application Number
- CN202520430975.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Existing rotary kiln production lines are prone to problems such as condensation and burnout of dust collector bags when handling high-temperature flue gas, especially when dealing with acidic flue gas and large temperature fluctuations, resulting in low dust removal efficiency and equipment damage.
A multifunctional rotary kiln production line was designed, which includes components such as dust discharge pipe, cooling plate, fan, pulse dust collector, cooling chamber and heat insulation layer. It uses a combination of air cooling and water cooling to cool and remove dust from flue gas, and heat insulation layer is set in the kiln body to slow down heat loss.
It achieves effective flue gas dust removal, avoids high-temperature burning of dust collector bags, and ensures production stability and energy-saving and environmental protection effects.
Smart Images
Figure CN223826757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of metallurgical technology, specifically to a multifunctional rotary kiln production line for drying, calcination and volatilization. Background Technology
[0002] Rotary kilns are common industrial kilns, widely used in metallurgy, metallurgical waste recycling, municipal and industrial waste incineration, material drying, calcination, and non-ferrous metal volatilization smelting. Currently, they are generally single-function kilns, meaning that a separate waste incineration kiln is built for waste incineration, a separate drying kiln is built for material drying, a separate calcination kiln is built for calcination, and a separate volatilization kiln is built for non-ferrous metal volatilization smelting and recycling.
[0003] The treatment of high-temperature flue gas generated during rotary kiln production generally uses pulse dust collectors, electrostatic precipitators, and water film dust collectors. However, these methods are prone to condensation or burning of filter bags during operation, causing significant disruptions to production. This is especially true for highly acidic flue gas, which has a high condensation temperature. Furthermore, when the flue gas temperature fluctuates greatly during production, a small cooling area can easily lead to excessively high flue gas temperatures, causing the filter bags of the pulse dust collector to burn out.
[0004] There is an urgent need for a multi-functional rotary kiln production line for drying, calcining, and volatilization to address the technical deficiencies mentioned above. Summary of the Invention
[0005] The purpose of this invention is to provide a multifunctional rotary kiln production line for drying, calcining and volatilization, so as to solve the problem of inconvenient and ineffective dust removal mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: A multifunctional rotary kiln production line for drying, calcination, and volatilization, comprising a kiln body, a cooling chamber installed on the right side of the kiln body, a kiln head hood installed on the right side of the cooling chamber, a kiln tail smoke chamber installed on the left side of the kiln body, a surface cooler installed outside the kiln tail smoke chamber, a dust discharge pipe installed at the top of the surface cooler, a pulse dust collector installed on the left side of the kiln tail smoke chamber, a connecting pipe installed at the input end of the pulse dust collector, the end of the dust discharge pipe connected to the connecting pipe, a cooling plate installed at the front end of the dust discharge pipe, a fan installed inside the cooling plate, a protective net installed at the front end of the cooling plate, a large gear ring installed outside the kiln body, a geared motor installed at the bottom of the kiln body, a small gear ring installed at the output end of the geared motor, three sets of tires installed outside the kiln body, a support base installed below the tires, a support roller installed at the top of the support base, and a cooling pipe installed outside the cooling chamber.
[0007] As a further technical solution of this utility model, the dust exhaust pipe is arranged in an S-shape, and the rear end of the cooling plate is attached to the outer wall of the dust exhaust pipe.
[0008] As a further technical solution of this utility model, a sealing component is fixedly connected to the right side of the kiln body, and the sealing component is connected to the kiln tail smoke chamber.
[0009] As a further technical solution of this utility model, the cooling plate is provided with exhaust holes at both the front and rear ends, and the protective net is provided at the front end of the fan.
[0010] As a further technical solution of this utility model, a cooling fin is installed on the outside of the cooling chamber, and the cooling pipe is installed on the cooling fin.
[0011] As a further technical solution of this utility model, the cooling pipe is provided in eight groups, and a circulation pipe is installed on the outside of the cooling pipe.
[0012] As a further technical solution of this utility model, a water supply pipe is installed on the left side of the kiln head hood, and the water supply pipe is connected to the cooling pipe.
[0013] As a further technical solution of this utility model, a heat insulation layer is installed on the inner side of the kiln body, and a heat preservation layer is provided on the inner side of the heat insulation layer.
[0014] Compared with the prior art, the beneficial effects of this utility model are: the multi-functional rotary kiln production line for drying, calcining and volatilization not only realizes the function of convenient and effective dust removal and convenient cooling discharge, but also realizes the function of slowing down heat loss.
[0015] (1) By setting up a dust discharge pipe, protective net, connecting pipe, pulse dust collector, cooling plate, surface cooler and fan, the flue gas generated during the kiln firing process can be transported from the dust discharge pipe to the inside of the pulse dust collector. The flue gas is cooled during the process of passing through the dust discharge pipe. The fan on the cooling plate can air cool the dust discharge pipe. The cooled flue gas enters the inside of the pulse dust collector to avoid the dust collection bag inside being burned by high temperature. Moreover, the air cooling structure can avoid the situation of excessive cooling and frost formation. This structure realizes the function of effective and safe dust removal.
[0016] (2) By setting up a cooling chamber, cooling pipe, water supply pipe, circulation pipe and cooling fins, the cooling chamber can cool the material inside the kiln body to facilitate material discharge. The cooling pipe outside the cooling chamber can enhance the cooling efficiency. Cooling water enters the interior of the cooling pipe from the water supply pipe. The cooling pipe can accelerate the cooling of the interior of the cooling chamber through the cooling fins. The circulation pipe installed on the cooling pipe can improve the circulation of cooling water to achieve the function of uninterrupted cooling. This structure realizes the function of facilitating cooling and material discharge.
[0017] (3) By setting up a kiln body, heat insulation layer and heat preservation layer, the interior of the kiln body is divided into a preheating zone, a transition zone, a firing zone and a cooling chamber. The inner sides of the preheating zone, transition zone and firing zone inside the kiln body are all equipped with heat insulation layer and heat preservation layer. The heat preservation layer adopts a plate with high heat preservation effect to slow down the rate of heat loss inside the kiln body. The heat insulation layer not only further realizes heat preservation, but also avoids the temperature of the outer wall of the kiln body from being too high. This structure realizes the functions of easy heat preservation and slowing down heat loss, and improves the energy-saving and environmental protection effect. Attached Figure Description
[0018] Figure 1 This is a frontal cross-sectional view of the present invention.
[0019] Figure 2 This is a front view structural diagram of the cooling plate of this utility model;
[0020] Figure 3 This is a schematic diagram of a partial cross-sectional view of the kiln body of this utility model.
[0021] Figure 4 This is a front view schematic diagram of the cooling chamber structure of this utility model;
[0022] Figure 5 For the present utility model Figure 1 Enlarged structural diagram at point A;
[0023] Figure 6 This is a front view structural diagram of the dust exhaust pipe of this utility model.
[0024] In the diagram: 1. Kiln head hood; 2. Cooling chamber; 3. Cooling pipe; 4. Kiln body; 5. Tire; 6. Large gear ring; 7. Insulation layer; 8. Kiln tail smoke chamber; 9. Dust discharge pipe; 10. Protective net; 11. Connecting pipe; 12. Pulse dust collector; 13. Cooling plate; 14. Surface cooler; 15. Sealing assembly; 16. Gear motor; 17. Small gear ring; 18. Support roller; 19. Insulation layer; 20. Support base; 21. Fan; 22. Water supply pipe; 23. Circulation pipe; 24. Cooling guide plate. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Example 1: Please refer to Figure 1-6A multifunctional rotary kiln production line for drying, calcining, and volatilization includes a kiln body 4, a cooling chamber 2 installed on the right side of the kiln body 4, a kiln head hood 1 installed on the right side of the cooling chamber 2, a kiln tail smoke chamber 8 installed on the left side of the kiln body 4, a surface cooler 14 installed outside the kiln tail smoke chamber 8, a dust discharge pipe 9 installed at the top of the surface cooler 14, a pulse dust collector 12 installed on the left side of the kiln tail smoke chamber 8, a connecting pipe 11 installed at the input end of the pulse dust collector 12, and the end of the dust discharge pipe 9 connected to the connecting pipe 11. 1. A cooling plate 13 is installed at the front end of the dust exhaust pipe 9. A fan 21 is installed inside the cooling plate 13. A protective net 10 is installed at the front end of the cooling plate 13. A large gear ring 6 is installed on the outside of the kiln body 4. A reduction motor 16 is installed at the bottom of the kiln body 4. A small gear ring 17 is installed at the output end of the reduction motor 16. Three sets of tires 5 are installed on the outside of the kiln body 4. A support seat 20 is installed below the tires 5. A support roller 18 is installed at the top of the support seat 20. A cooling pipe 3 is installed on the outside of the cooling chamber 2.
[0027] The dust exhaust pipe 9 is arranged in an S-shape. The rear end of the cooling plate 13 is attached to the outer wall of the dust exhaust pipe 9. A sealing component 15 is fixedly connected to the right side of the kiln body 4. The sealing component 15 is connected to the kiln tail smoke chamber 8. Exhaust holes are provided at the front and rear ends of the cooling plate 13. The protective net 10 is set at the front end of the fan 21.
[0028] Specifically, such as Figure 1 , Figure 2 and Figure 6 As shown, the flue gas generated during the firing process can be transported from the dust discharge pipe 9 to the inside of the pulse dust collector 12. The flue gas is cooled as it passes through the dust discharge pipe 9. The fan 21 on the cooling plate 13 can air-cool the dust discharge pipe 9. The cooled flue gas enters the inside of the pulse dust collector 12, which can prevent the dust collection bag inside from being burned by high temperature. Moreover, the air-cooling structure can prevent excessive cooling and frost formation.
[0029] Cooling chamber 2 is equipped with cooling fins 24 on the outside, cooling pipes 3 are installed on cooling fins 24, eight sets of cooling pipes 3 are provided, and circulation pipes 23 are installed on the outside of cooling pipes 3. Water supply pipes 22 are installed on the left side of kiln head hood 1 and are connected to cooling pipes 3.
[0030] Specifically, such as Figure 1 and Figure 4 As shown, the cooling pipe 3 outside the cooling chamber 2 can enhance the cooling efficiency. Cooling water enters the interior of the cooling pipe 3 from the water supply pipe 22. The cooling pipe 3 can accelerate the cooling of the interior of the cooling chamber 2 through the cooling guide plate 24. The circulation pipe 23 installed on the cooling pipe 3 can improve the circulation of cooling water and achieve the function of uninterrupted cooling.
[0031] A heat insulation layer 7 is installed on the inner side of the kiln body 4, and a heat insulation layer 19 is provided on the inner side of the heat insulation layer 7.
[0032] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, the inner sides of the preheating zone, transition zone and firing zone inside the kiln body 4 are all equipped with heat insulation layer 7 and heat preservation layer 19. The heat preservation layer 19 adopts a plate with high heat preservation effect to slow down the rate of heat loss inside the kiln body 4. The heat insulation layer 7 not only further achieves heat preservation, but also avoids the temperature of the outer wall of the kiln body 4 from being too high.
[0033] Working Principle: In use, the material is first evenly fed into the kiln body 4. The preheating zone inside the kiln body 4 preheats the material. Then, the material enters the transition zone and firing zone for firing. During firing, the reduction motor 16 drives the small gear ring 17 to rotate, which in turn drives the large gear ring 6 to rotate, thus rotating the kiln body 4 for firing. Finally, the material is cooled and discharged through the cooling chamber 2. The cooling pipe 3 outside the cooling chamber 2 enhances the cooling efficiency. Cooling water enters the cooling pipe 3 from the water supply pipe 22. The cooling pipe 3 accelerates the cooling of the interior of the cooling chamber 2 through the cooling guide plate 24. The circulation pipe 23 installed on the cooling pipe 3 improves the circulation of cooling water and achieves uninterrupted cooling. The preheating zone, transition zone, and firing zone inside the kiln body 4 are all equipped with... The furnace is equipped with a heat insulation layer 7 and a heat preservation layer 19. The heat preservation layer 19 uses a high heat preservation plate to slow down the rate of heat loss inside the kiln body 4. The flue gas generated during the firing process can be transported from the dust discharge pipe 9 to the inside of the pulse dust collector 12. The flue gas is cooled as it passes through the dust discharge pipe 9. The fan 21 on the cooling plate 13 can air-cool the dust discharge pipe 9. The cooled flue gas enters the inside of the pulse dust collector 12 to prevent the dust collection bags inside from being burned by high temperature. Moreover, the air-cooling structure can prevent excessive cooling and frost formation.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A multifunctional rotary kiln production line for drying, calcining and volatilization, comprising a kiln body (4), characterized in that: A cooling chamber (2) is installed on the right side of the kiln body (4), and a kiln head hood (1) is installed on the right side of the cooling chamber (2). A kiln tail smoke chamber (8) is installed on the left side of the kiln body (4). A surface cooler (14) is installed on the outside of the kiln tail smoke chamber (8). A dust discharge pipe (9) is installed at the top of the surface cooler (14). A pulse dust collector (12) is installed on the left side of the kiln tail smoke chamber (8). A connecting pipe (11) is installed at the input end of the pulse dust collector (12). The end of the dust discharge pipe (9) is connected to the connecting pipe (11). A cooling plate is installed at the front end of the dust discharge pipe (9). (13) A fan (21) is installed inside the cooling plate (13). A protective net (10) is installed at the front end of the cooling plate (13). A large gear ring (6) is installed on the outside of the kiln body (4). A geared motor (16) is installed at the bottom of the kiln body (4). A small gear ring (17) is installed at the output end of the geared motor (16). Three sets of tires (5) are installed on the outside of the kiln body (4). A support seat (20) is installed below the tires (5). A support roller (18) is installed at the top of the support seat (20). A cooling pipe (3) is installed on the outside of the cooling chamber (2).
2. The multifunctional rotary kiln production line for drying, calcination, and volatilization according to claim 1, characterized in that: The dust exhaust pipe (9) is arranged in an S-shape, and the rear end of the cooling plate (13) is attached to the outer wall of the dust exhaust pipe (9).
3. The multifunctional rotary kiln production line for drying, calcination, and volatilization according to claim 1, characterized in that: A sealing assembly (15) is fixedly connected to the right side of the kiln body (4), and the sealing assembly (15) is connected to the kiln tail smoke chamber (8).
4. The multifunctional rotary kiln production line for drying, calcination, and volatilization according to claim 1, characterized in that: The cooling plate (13) has exhaust holes at both the front and rear ends, and the protective net (10) is located at the front end of the fan (21).
5. The multifunctional rotary kiln production line for drying, calcination, and volatilization according to claim 1, characterized in that: The cooling chamber (2) is equipped with a cooling fin (24) on its exterior, and the cooling pipe (3) is mounted on the cooling fin (24).
6. The multifunctional rotary kiln production line for drying, calcination, and volatilization according to claim 1, characterized in that: The cooling pipe (3) is provided in eight sets, and a circulation pipe (23) is installed on the outside of the cooling pipe (3).
7. The multifunctional rotary kiln production line for drying, calcination and volatilization according to claim 1, characterized in that: A water supply pipe (22) is installed on the left side of the kiln head cover (1), and the water supply pipe (22) is connected to the cooling pipe (3).
8. The multifunctional rotary kiln production line for drying, calcination and volatilization according to claim 1, characterized in that: A heat insulation layer (7) is installed on the inner side of the kiln body (4), and a heat preservation layer (19) is provided on the inner side of the heat insulation layer (7).