Raw lime discharging sleeve kiln

Abstract

The utility model belongs to the technical field of sleeve kilns, and particularly relates to a raw lime discharging sleeve kiln which comprises a sleeve kiln body, a conical guide plate and a cooling assembly are arranged in the sleeve kiln body, the cooling assembly comprises a rotating assembly and a hollow cylinder, a water inlet pipe is arranged on the hollow cylinder and connected with an external water tank, and a water pump is arranged on the water inlet pipe. A hollow supporting rod is arranged on the inner wall of the bottom of the hollow cylinder, four hollow connecting plates are arranged on the outer side of the hollow supporting rod and divide the hollow cylinder into four cooling areas, a plurality of sets of hollow arc-shaped plates are arranged between every two hollow connecting plates, and a water guide pipe is arranged at the top of the hollow supporting rod. The end, away from the hollow supporting rod, of the water guide pipe is connected with an external water tank, multiple first discharging holes are formed in the bottom of the hollow cylinder, and a rotating disc attached to the hollow cylinder is installed at the top of the rotating assembly. According to the device, the cooling effect on lime can be improved, and the production efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sleeve kilns, and particularly relates to a sleeve kiln for discharging raw lime. Background Art

[0002] A sleeve kiln is a type of lime kiln characterized by low heat consumption, high lime activity, simple structure, and strong fuel adaptability. Compared with traditional lime kilns, lime is calcined in an annular space, resulting in more uniform airflow distribution. The kiln does not require cooling equipment, resulting in a low failure rate and easy maintenance. It is suitable for the production of high-quality lime using technologies such as coke oven gas in the steel industry and calcium carbide furnace exhaust in the chemical industry. Automated control is used to improve lime quality and save energy, thereby calcining high-quality active lime. Because the high-temperature fan in the sleeve kiln creates a negative pressure, most devices can cool the lime in the ash discharge chamber using simple ventilation pipes and regulating valves. However, relying solely on naturally drawn air due to negative pressure is not only inefficient, but also has limited cooling effects and cannot guarantee cooling quality.

[0003] A current sleeve kiln lime cooling device, as described in patent publication number CN210825967U: This utility model provides a sleeve kiln lime cooling device, which relates to the technical field of lime production equipment. This utility model uses a designed lime cooling mechanism to accelerate the flow of air through motor-driven rotating blades combined with negative pressure airflow. At the same time, an appropriate amount of water mist is provided to the cooling chamber through an atomizing nozzle. The water mist enters the ash discharge chamber along with the airflow, accelerating the cooling of the lime, thereby improving the production efficiency of lime.

[0004] Regarding the above-mentioned related technologies, the inventors believe that the method of cooling lime by spraying water mist is unreliable. The water mist will cause the lime to clump and block the discharge port. In addition, the water mist spraying can only cool the surface temperature of the lime blocks, but cannot reduce the core temperature of the lime blocks. Therefore, the work efficiency is insufficient.

[0005] To this end, we proposed a raw lime discharge sleeve kiln, which can increase the heat dissipation area of ​​the lime, thereby improving the cooling effect of the lime, and improving production efficiency and product quality. Utility Model Content

[0006] The purpose of the present invention is to provide a sleeve kiln for discharging raw lime, which can increase the heat dissipation area of ​​the lime, thereby improving the cooling effect of the lime, and improving production efficiency and product quality.

[0007] The technical solutions adopted in this application are as follows:

[0008] A raw lime discharging sleeve kiln comprises a sleeve kiln body, wherein a conical material guide plate and a cooling assembly are arranged inside the sleeve kiln body;

[0009] The cooling assembly includes a rotating assembly and a hollow cylinder, the hollow cylinder is provided with a water inlet pipe, the water inlet pipe is connected to an external water tank, the water inlet pipe is provided with a water pump, and a hollow support rod is provided on the inner wall of the bottom of the hollow cylinder, four hollow connecting plates are provided on the outside of the hollow support rod, the four hollow connecting plates divide the hollow cylinder into four cooling areas, and multiple groups of hollow arc plates are provided between every two of the hollow connecting plates, a water guide pipe is provided on the top of the hollow support rod, and the end of the water guide pipe away from the hollow support rod is connected to the external water tank;

[0010] The bottom of the hollow cylinder is provided with a plurality of first discharge holes, the top of the rotating assembly is provided with a rotating disk fitted with the hollow cylinder, and the rotating disk is provided with second discharge holes staggered with the first discharge holes.

[0011] Furthermore, the hollow cylinder, the hollow support rod, the hollow connecting plate and the hollow arc-shaped plate are all connected to each other.

[0012] Furthermore, the hollow arc-shaped plate divides the cooling area into a plurality of enhanced cooling zones.

[0013] Furthermore, the diameter of the first discharge hole is the same as the diameter of the second discharge hole.

[0014] Furthermore, the rotating assembly includes a bracket connected to the inner wall of the sleeve kiln body, a motor is provided on the bracket, and an output end of the motor is connected to the rotating disk.

[0015] Furthermore, the sleeve kiln body is provided with heat exchange tubes and burners.

[0016] The technical effects achieved by this utility model are:

[0017] First, the lime is calcined in the sleeve kiln body. The treated lime enters the four cooling areas of the hollow cylinder through the conical guide plate. At this time, the cooling water in the water tank enters the hollow cavity of the hollow cylinder through the water pump. The cooling water then enters the hollow cavity of the hollow arc plate, the hollow cavity of the hollow connecting plate, and the hollow support rod in sequence. This can increase the heat dissipation area, thereby improving the cooling effect of the lime. The cooling water inside the hollow support rod absorbs heat and enters the water guide pipe, and then enters the water tank again for cooling. After a period of cooling, the rotating assembly drives the rotating disk to rotate, so that the first discharge hole is aligned with the second discharge hole. After alignment, the cooled lime is discharged. This device can increase the heat dissipation area of ​​the lime, improve the cooling effect of the lime, and improve production efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1It is a schematic structural diagram of the utility model as a whole;

[0019] Figure 2 It is a cross-sectional view of the hollow cylinder of the utility model;

[0020] Figure 3 This is a front view of the hollow cylinder of the utility model;

[0021] Figure 4 It is a top view of the hollow cylinder of the utility model;

[0022] Figure 5 This is a schematic structural diagram of the utility model after the first discharge port and the second discharge port are aligned.

[0023] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0024] 1. Sleeve kiln body; 2. Conical guide plate; 3. Hollow cylinder; 4. Water inlet pipe; 5. Hollow support rod; 6. Hollow connecting plate; 7. Cooling area; 8. Hollow arc plate; 9. Water guide pipe; 10. First discharge hole; 11. Rotating plate; 12. Second discharge hole; 13. Motor; 14. Heat exchange tube; 15. Burner. DETAILED DESCRIPTION

[0025] In order to make the purpose and advantages of this utility more clear, the utility is described in detail below with reference to the embodiments. It should be understood that the following text is only used to describe one or several specific implementation methods of this utility and does not strictly limit the scope of protection specifically requested by this utility.

[0026] like Figure 1-5 As shown, the technical solution adopted by the present invention is as follows: a raw lime discharge sleeve kiln, comprising a sleeve kiln body 1, wherein a conical material guide plate 2 and a cooling assembly are arranged inside the sleeve kiln body 1;

[0027] The cooling assembly includes a rotating assembly and a hollow cylinder 3. A water inlet pipe 4 is provided on the hollow cylinder 3, which is connected to an external water tank. A water pump is provided on the water inlet pipe 4. A hollow support rod 5 is provided on the inner wall of the bottom of the hollow cylinder 3. Four hollow connecting plates 6 are provided on the outside of the hollow support rod 5. The four hollow connecting plates 6 divide the hollow cylinder 3 into four cooling areas 7, and multiple groups of hollow arc plates 8 are provided between every two hollow connecting plates 6. A water guide pipe 9 is provided on the top of the hollow support rod 5. The end of the water guide pipe 9 away from the hollow support rod 5 is connected to the external water tank.

[0028] A plurality of first discharge holes 10 are provided at the bottom of the hollow cylinder 3 , and a rotating disk 11 fitted with the hollow cylinder 3 is installed on the top of the rotating assembly. The rotating disk 11 is provided with second discharge holes 12 staggered with the first discharge holes 10 .

[0029] Its working principle is as follows: first, lime is calcined through the sleeve kiln body 1. The treated lime enters the four cooling areas 7 of the hollow cylinder 3 through the conical guide plate 2. At this time, the cooling water inside the water tank enters the hollow cavity of the hollow cylinder 3 through the water pump. The cooling water then enters the hollow cavity of the hollow arc plate 8, the hollow cavity of the hollow connecting plate 6, and the hollow support rod 5 in sequence. At this time, the heat dissipation area can be increased, thereby improving the cooling effect of the lime. The cooling water inside the hollow support rod 5 absorbs heat and enters the water guide pipe 9, and then enters the water tank again for cooling. After cooling for a period of time, the rotating assembly drives the rotating disk 11 to rotate, so that the first discharge hole 10 is aligned with the second discharge hole 12. After alignment, the cooled lime is discharged. This device can improve the cooling effect of the lime, improve production efficiency and product quality.

[0030] Among them, the hollow cylinder 3, hollow support rod 5, hollow connecting plate 6 and hollow arc plate 8 are all made of heat-absorbing materials, such as ceramics. When the lime enters the cooling area 7, the heat on the lime is transferred to the hollow cylinder 3, hollow support rod 5, hollow connecting plate 6 and hollow arc plate 8, and then the cooling water flows inside the hollow cylinder 3, hollow support rod 5, hollow connecting plate 6 and hollow arc plate 8, thereby taking away the heat and achieving the effect of rapid heat dissipation.

[0031] At the same time, the hollow cylinder 3, the hollow support rod 5, the hollow connecting plate 6 and the hollow arc-shaped plate 8 can increase the cooling area and perform cooling from all aspects, thereby improving the cooling effect.

[0032] In this embodiment, the hollow arc-shaped plate 8 divides the cooling area 7 into a plurality of enhanced cooling zones, which can increase the contact area of ​​the lime and thus improve the cooling effect of the lime.

[0033] The diameter of the first discharge hole 10 is the same as the diameter of the second discharge hole 12 , which means that lime can be discharged through the first discharge hole 10 and the second discharge hole 12 .

[0034] like Figure 1 and Figure 2 As shown, the rotating assembly includes a bracket connected to the inner wall of the sleeve kiln body 1, and a motor 13 is provided on the bracket. The output end of the motor 13 is connected to the rotating disk 11. The motor 13 is supported by the bracket, and the rotating disk 11 is driven to rotate by the motor 13, so that the first discharge hole 10 and the second discharge hole 12 are misaligned or aligned.

[0035] The motor 13 is a stepping motor 13 , and its model is a 42-type stepping motor 13 .

[0036] like Figure 1As shown, a heat exchange tube 14 and a burner 15 are provided on the sleeve kiln body 1 . Heat exchange is performed through the heat exchange tube 14 , and lime is burned through the burner 15 .

[0037] In this embodiment, in order to keep the water inside the external water tank at a low temperature, a refrigerator can be installed thereon to keep the water at a low temperature, thereby improving the cooling effect.

[0038] The working principle of this utility model is as follows: first, lime is calcined through the sleeve kiln body 1. The treated lime enters the four cooling areas 7 of the hollow cylinder 3 through the conical guide plate 2. At this time, the cooling water inside the water tank enters the hollow cavity of the hollow cylinder 3 through the water pump. The cooling water then enters the hollow cavity of the hollow arc plate 8, the hollow cavity of the hollow connecting plate 6, and the hollow support rod 5 in sequence. At this time, the heat dissipation area can be increased, thereby improving the cooling effect of the lime. The cooling water inside the hollow support rod 5 absorbs heat and enters the water guide pipe 9, and then enters the water tank again for cooling. After cooling for a period of time, the rotating assembly drives the rotating disk 11 to rotate, so that the first discharge hole 10 is aligned with the second discharge hole 12. After alignment, the cooled lime is discharged. This device can improve the cooling effect of the lime, improve production efficiency and product quality.

[0039] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should also be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this application shall be implemented in accordance with conventional means in the art unless otherwise specified or limited.

Claims

1. A raw lime discharge sleeve kiln, comprising a sleeve kiln body (1), wherein a conical material guide plate (2) and a cooling assembly are provided inside the sleeve kiln body (1); Its characteristics are: The cooling assembly includes a rotating assembly and a hollow cylinder (3), a water inlet pipe (4) is provided on the hollow cylinder (3), the water inlet pipe (4) is connected to an external water tank, a water pump is provided on the water inlet pipe (4), and a hollow support rod (5) is provided on the inner wall of the bottom of the hollow cylinder (3), four hollow connecting plates (6) are provided on the outside of the hollow support rod (5), the four hollow connecting plates (6) divide the hollow cylinder (3) into four cooling areas (7), and multiple groups of hollow arc plates (8) are provided between every two hollow connecting plates (6), a water guide pipe (9) is provided on the top of the hollow support rod (5), and the end of the water guide pipe (9) away from the hollow support rod (5) is connected to the external water tank; A plurality of first discharge holes (10) are provided at the bottom of the hollow cylinder (3); a rotating disk (11) fitted with the hollow cylinder (3) is installed on the top of the rotating assembly; and a second discharge hole (12) staggered with the first discharge hole (10) is provided on the rotating disk (11).

2. The raw lime discharging sleeve kiln according to claim 1, characterized in that: The hollow cylinder (3), the hollow support rod (5), the hollow connecting plate (6) and the hollow arc-shaped plate (8) are all interconnected.

3. The raw lime discharging sleeve kiln according to claim 1, characterized in that: The hollow arc-shaped plate (8) divides the cooling area (7) into a plurality of enhanced cooling zones.

4. The raw lime discharge sleeve kiln according to claim 1, characterized in that: The diameter of the first discharge hole (10) is the same as the diameter of the second discharge hole (12).

5. The raw lime discharging sleeve kiln according to claim 1, characterized in that: The rotating assembly comprises a bracket connected to the inner wall of the sleeve kiln body (1); a motor (13) is provided on the bracket; and an output end of the motor (13) is connected to the rotating disk (11).

6. The raw lime discharging sleeve kiln according to claim 1, characterized in that: The sleeve kiln body (1) is provided with a heat exchange tube (14) and a burner (15).

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