Environment-friendly closed rotary kiln head capable of preventing materials from being accumulated and blocked
By using a steel structure design and an iron-sealed kiln head, combined with a reverse flow guide plate and gas pipeline, the problems of material blockage and flue gas leakage at the rotary kiln head were solved, enabling smooth material discharge and closed-loop recovery of high-temperature dust, thus improving environmental performance and production safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-03-10
AI Technical Summary
Existing rotary kiln kilns are prone to material accumulation and blockage during the firing process, and flue gas is prone to overflow, resulting in environmental pollution and high metal loss rate in the workshop.
The kiln head, designed with a steel structure, combined with an iron seal and a reverse flow guide plate, is connected by a gas pipeline and a manual hoist to ensure smooth material discharge and sealed recovery of high-temperature dust, reducing blockages and flue gas leakage.
It effectively prevents material blockage, improves the workshop environment, reduces metal loss, achieves closed-loop recycling of high-temperature dust, and enhances environmental performance.
Smart Images
Figure CN223985549U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of pyrometallurgical production and processing technology, specifically relating to an environmentally friendly, closed rotary kiln head that prevents material accumulation and blockage. Background Technology
[0002] Rotary kilns are mainly used for roasting mineral powder. The kiln head of the rotary kiln is designed with refractory materials and has a diameter of about 4 meters. There is a conveying hole in the middle through which coal powder is passed for roasting and smelting. At the same time, the company uses a mother-daughter rotary kiln. The material roasted at the kiln head needs to be conveyed to the daughter rotary kiln for cooling. However, with the increasing environmental protection requirements, coal powder as a combustion medium is facing elimination, and natural gas, as a more environmentally friendly combustion medium, has been introduced into the smelting industry. This requires the upgrading and transformation of the kiln head of the rotary kiln. Utility Model Content
[0003] The purpose of this invention is to provide an environmentally friendly, sealed rotary kiln head that prevents material accumulation and blockage, in order to solve the problems mentioned in the background art.
[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an environmentally friendly sealed rotary kiln head that prevents material accumulation and blockage, characterized in that: an auxiliary wheel is provided in the middle of the left section of the rotary kiln, a drive wheel is provided at the lower end of the middle section of the rotary kiln, a gearbox is provided at the right end of the drive wheel, a drive motor is provided at the right end of the gearbox, a first feed end is provided at the right end of the rotary kiln, a feed inlet is provided at the upper part of the first feed end, a first discharge end is provided on the left side of the rotary kiln, the first discharge end adopts a steel structure welded disc structure, the first discharge end is sealed with the rotary kiln, a discharge chute is provided at the lower part of the first discharge end, the discharge chute is connected to a cooling kiln, a smoke outlet is provided at the middle position of the top of the first discharge end, a crossbar is welded and installed at the top of the first discharge end, a manual hoist is provided in the middle of the crossbar, a chain is provided at the lower end of the manual hoist, the other end of the chain is connected to a gas pipe, and a gas pipe is provided inside the gas pipe.
[0005] Preferably, a second feed end is provided at the left end of the cooling kiln, a connecting pipe is provided at the lower part of the second feed end, an induced draft fan is provided on the connecting pipe, and the other end of the connecting pipe is connected to an air pipe.
[0006] Preferably, a second discharge end is provided at the right end of the cooling kiln, a discharge port is provided at the lower part of the second discharge end, and a cooling fan is provided at the lower middle part of the cooling kiln.
[0007] Compared with the prior art, the beneficial effects achieved by this utility model are: replacing the previous refractory brick kiln head with a steel kiln head structure and sealing the kiln head with iron. Since the kiln head is sealed with iron, the flue gas is not easy to escape, which improves the workshop environment and reduces the pungent odor and physical harm. At the same time, the high-temperature dust contains metal micro-powder, which can be recovered in a closed manner, reducing the metal loss rate. Attached Figure Description
[0008] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0009] Figure 1 This is a schematic diagram of the structure of this utility model;
[0010] Figure 2 This is a schematic diagram of the cooling kiln structure of this utility model;
[0011] Figure 3 This is a schematic diagram of the material feeding chute structure of this utility model. Detailed Implementation
[0012] The following detailed, non-limiting description of the present invention, in conjunction with preferred embodiments and accompanying drawings, is provided. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0013] like Figures 1-3As shown, an environmentally friendly, sealed rotary kiln head designed to prevent material accumulation and blockage is characterized by: an auxiliary wheel 17 located in the middle of the left section of the rotary kiln 16; a drive wheel 15 located at the lower end of the middle section of the rotary kiln 16; a gearbox 14 located at the right end of the drive wheel 15; a drive motor 13 located at the right end of the gearbox 14; a first feed end 11 located at the right end of the rotary kiln 16; a feed inlet 12 located at the upper part of the first feed end 11; and a first discharge end 18 located on the left side of the rotary kiln 16. The first discharge end 18 adopts... The steel-welded disc structure has a first discharge end 18 sealed to the rotary kiln 16. A discharge chute 5 is located at the lower part of the first discharge end 18, connecting to the cooling kiln 6. A flue gas outlet 10 is located at the top center of the first discharge end 18. A crossbar 7 is welded to the top of the first discharge end 18, with a manual hoist 8 located in the middle. A chain 1 is located at the lower end of the manual hoist 8, with the other end connected to a gas pipe 2. A gas pipe 9 is installed inside the gas pipe 2. The left end of the cooling kiln 6 is... There is a second feed end 19, with a connecting pipe 4 at its lower part. An induced draft fan 3 is installed on the connecting pipe 4, and the other end of the connecting pipe 4 is connected to an air pipe 2. A second discharge end 22 is located at the right end of the cooling kiln 6, with a discharge port 21 at its lower part. A cooling fan 20 is installed at the lower middle part of the cooling kiln 6. The first discharge end 18 at the kiln head is sealed with iron. Simultaneously, a reverse flow guide plate is designed inside the kiln head to cause the material to vibrate counter-clockwise from the kiln tail to the kiln head. The end of the diversion plate matches the diameter of the material inlet of the cooling kiln 6, allowing the material to enter the cooling kiln 6 smoothly, solving the original problems of material jamming and blockage. In addition, since the kiln head is sealed with iron, the flue gas is not easy to overflow, improving the workshop environment and reducing the pungent odor hazard. At the same time, the high-temperature dust contains metal micropowder, which can be recovered in a closed manner, reducing the metal loss rate. The air pipe 2 is connected to the crossbar 7 and the manual hoist 8. The air pipe 2 has been technically upgraded and reinforced, enabling the pipe to be placed horizontally into the rotary kiln.
[0014] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0015] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. An environmentally friendly, sealed rotary kiln head that prevents material accumulation and blockage, characterized in that: The rotary kiln (16) is provided with an auxiliary wheel (17) in the middle of the left section, a driving wheel (15) is arranged at the lower end of the middle section of the rotary kiln (16), the driving wheel (15) is provided with a gearbox (14) at the right end, the gearbox (14) is provided with a driving motor (13) at the right end, the rotary kiln (16) is provided with a first feeding end (11) at the right end, the first feeding end (11) is provided with a feeding port (12) at the upper part, the rotary kiln (16) is provided with a first discharging end (18) at the left side, the first discharging end (18) is a disc structure welded by steel structure, the first discharging end (18) is sealed with the rotary kiln (16), the first discharging end (18) is provided with a discharging chute (5) at the lower part, the discharging chute (5) is connected with a cooling kiln (6), the first discharging end (18) is provided with a smoke outlet (10) at the top middle position, the first discharging end (18) is provided with a horizontal rod (7) welded and arranged at the top, the horizontal rod (7) is provided with a manual hoist (8) at the middle part, the manual hoist (8) is provided with a chain (1) at the lower end, the chain (1) is connected with an air pipe (2) at the other end, and the air pipe (2) is provided with a gas pipe (9) inside.
2. An environment-friendly closed rotary kiln head with anti-material accumulation and blocking, according to claim 1, characterized in that: The cooling kiln (6) is provided with a second feeding end (19) at the left end, the second feeding end (19) is provided with a connecting pipe (4) at the lower part, the connecting pipe (4) is provided with an air duct (3) at the upper part, and the connecting pipe (4) is connected with the air pipe (2) at the other end.
3. The anti- material accumulation and blocking environment-friendly closed rotary kiln head according to claim 1, characterized in that: The cooling kiln (6) is provided with a second discharging end (22) at the right end, the second discharging end (22) is provided with a discharging port (21) at the lower part, and the cooling kiln (6) is provided with a cooling fan (20) at the lower end of the middle section.