Lime rotary kiln vertical cooling temperature control device

Abstract

The utility model discloses a vertical cooling temperature control device of a lime rotary kiln, which relates to the technical field of lime production equipment and comprises a vertical cooler body, a plurality of conical blanking hoppers are arranged at the bottom of the vertical cooler body, and a central wind tower and a plurality of auxiliary wind towers are arranged in the vertical cooler body. The plurality of auxiliary wind towers are arranged around the central wind tower and are respectively positioned above the plurality of conical blanking hoppers; auxiliary air pipes are fixedly connected to the lower ends of the multiple auxiliary air towers, the lower ends of the multiple auxiliary air pipes communicate with second cooling pipes, the other ends of the multiple second cooling pipes penetrate through the multiple conical discharging hoppers correspondingly and extend to the outer side of the vertical cooler body, and air control valves are installed in the middles of the multiple second cooling pipes correspondingly; the auxiliary cooling air pipe is arranged on the side air duct, the local air supply amount can be adjusted according to the set discharging material temperature, the local material temperature can be cooled, and the situation that a discharging port and transportation components are damaged by the high temperature of materials is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of lime production equipment, and more particularly to a vertical cooling temperature control device for a lime rotary kiln. Background Art

[0002] The rotary kiln vertical cooler is a crucial component of the rotary kiln system, used to rapidly cool the calcined material. After heat exchange, the cold air enters the rotary kiln for heat utilization, providing the necessary heat energy for calcining the material. Rotary kiln vertical coolers are widely used in cement production, metallurgy, and the chemical industry, improving energy efficiency and production efficiency.

[0003] In a rotary kiln's vertical cooler, cold air flows through the material layers via channels formed by gaps created during the material accumulation process. Therefore, the material particle size and feed rate have a critical impact on the heat exchange efficiency of the rotary kiln's vertical cooler. Cool air flows from bottom to top through the four side ducts of the vertical cooler. After heat exchange, the material is discharged by the discharge motor. However, due to material segregation or malfunction of the lower discharge equipment, localized high temperatures can occur. This can cause excessive temperature in one side duct, leading to damage to the downstream process equipment, resulting in production equipment failure and disrupting normal rotary kiln operations. Utility Model Content

[0004] The purpose of the utility model is to solve the above technical problems and provide a vertical cooling temperature control device for a lime rotary kiln.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions: a vertical cooling temperature control device for a lime rotary kiln, comprising a vertical cooler body, a plurality of conical lower hoppers being provided at the bottom of the vertical cooler body, a central wind tower and a plurality of auxiliary wind towers being provided inside the vertical cooler body, the plurality of auxiliary wind towers being arranged around the central wind tower and respectively located above the plurality of conical lower hoppers; the lower ends of the plurality of auxiliary wind towers are fixedly connected with auxiliary air ducts, the lower ends of the plurality of auxiliary air ducts are connected with second cooling pipes, the other ends of the plurality of second cooling pipes respectively pass through the plurality of conical lower hoppers and extend to the outside of the vertical cooler body, and the middle parts of the plurality of second cooling pipes are respectively installed with air control valves.

[0006] In order to conveniently provide cold air for the central wind tower, as a preferred vertical cooling temperature control device for a lime rotary kiln of the present invention, the lower end of the central wind tower is fixedly connected with a central air duct, the lower end of the central air duct extends through and extends to the bottom of the vertical cooler body, and the lower end of the central air duct is connected to a first cooling pipe.

[0007] In order to facilitate the detection of the temperature of the materials in multiple conical lower hoppers and adjust the air valve according to the detected temperature, as a preferred vertical cooling temperature control device for a lime rotary kiln in the present invention, temperature monitors are installed on the outside of the multiple conical lower hoppers, and the signal sending ends of the multiple temperature monitors are respectively connected to the control end signals of the corresponding air control valves.

[0008] In order to facilitate the operation of the vibrating feeder controlled according to the detected temperature, as a preferred vertical cooling temperature control device for a lime rotary kiln of the present invention, a vibrating feeder is installed under each of the plurality of conical lower hoppers, and the control ends of the plurality of vibrating feeders are respectively connected to the signal sending ends of the corresponding temperature monitors.

[0009] The beneficial effects of the utility model are as follows: by arranging auxiliary air ducts on the four side air ducts of the rotary kiln vertical cooler, the air valve is automatically adjusted according to the temperature of the discharged product in each side air duct, and then air is supplied to cool the material temperature in the conical discharge hopper where the material is overheated, and at the same time, the vibrating feeder at the discharge point of the overheated material is suspended, thereby achieving the adjustment of the local material overtemperature in the rotary kiln vertical cooler, avoiding the local high temperature damage to the discharge and transportation components caused by material segregation, ensuring stable production operation, and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the internal structure of the utility model;

[0011] Figure 2 It is a top view schematic diagram of the central wind tower and multiple auxiliary wind towers of the utility model.

[0012] Figure numerals: 1. Vertical cooler body; 101. Conical lower hopper; 2. Central wind tower; 201. Central air duct; 202. First cooling pipe; 3. Auxiliary wind tower; 301. Auxiliary air duct; 302. Second cooling pipe; 303. Air control valve; 4. Temperature monitor; 5. Vibrating feeder. DETAILED DESCRIPTION

[0013] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The exemplary embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.

[0014] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0015] See also Figure 1-2 , the utility model provides the following technical solutions:

[0016] A vertical cooling temperature control device for a lime rotary kiln comprises a vertical cooler body 1, wherein a plurality of conical lower hoppers 101 are provided at the bottom of the vertical cooler body 1, a central wind tower 2 and a plurality of auxiliary wind towers 3 are provided inside the vertical cooler body 1, and the plurality of auxiliary wind towers 3 are arranged around the central wind tower 2 and are respectively located above the plurality of conical lower hoppers 101; a central wind duct 201 is fixedly connected to the lower end of the central wind tower 2, and the lower end of the central wind duct 201 extends through and extends to the bottom of the vertical cooler body 1, and the lower end of the central wind duct 201 is connected to a first cooling pipe 202; the lower ends of the plurality of auxiliary wind towers 3 are all fixedly connected to auxiliary air ducts 301, and the lower ends of the plurality of auxiliary air ducts 301 are all connected to a second cooling pipe 302, and the other ends of the plurality of second cooling pipes 302 respectively penetrate the plurality of conical lower hoppers 101 and extend to the outside of the vertical cooler body 1, and the middle parts of the plurality of second cooling pipes 302 are all installed with air control valves 303.

[0017] In this embodiment: air is supplied to the interior of the vertical cooler body 1 through the first cooling pipe 202, the central air duct 201, and the central wind tower 2 in sequence, thereby cooling the entire material; air is supplied to the interior of the vertical cooler body 1 through multiple second cooling pipes 302, multiple auxiliary air ducts 301, and multiple auxiliary wind towers 3 in sequence, thereby cooling the material on the multiple conical lower hoppers 101; by installing air control valves 303 on the multiple second cooling pipes 302, when the temperature of the material at a certain conical lower hopper 101 is too high, the corresponding air control valve 303 can be controlled, that is, its opening and closing degree can be adjusted to increase the air supply, so that the material at various positions inside the vertical cooler body 1 is kept evenly cooled.

[0018] As a technical optimization solution of the present invention, temperature monitors 4 are installed through the outer sides of multiple conical lower hoppers 101 (the air control valve 303 specifically adopts an electric closed check air valve), and the signal sending ends of the multiple temperature monitors 4 are respectively connected to the control end signals of the corresponding air control valves 303; vibrating feeders 5 are installed under the multiple conical lower hoppers 101, and the control ends of the multiple vibrating feeders 5 are respectively connected to the signal sending ends of the corresponding temperature monitors 4.

[0019] In this embodiment: when the temperature monitor 4 detects that the material temperature is lower than 150°C, the corresponding air control valve 303 and the vibrating feeder 5 operate normally; when the temperature monitor 4 detects that the material temperature exceeds 150°C, the signal sending end of the temperature monitor 4 sends a signal to the corresponding air control valve 303 and the vibrating feeder 5, the control end of the corresponding air control valve 303 receives the signal and adjusts the air control valve 303 to increase the air volume, and at the same time the control end of the corresponding vibrating feeder 5 receives the signal and stops operating.

[0020] The above is a detailed introduction to the technical solutions provided by the embodiments of the present invention. Specific examples are used herein to illustrate the principles and implementation methods of the embodiments of the present invention. The description of the above embodiments is only applicable to help understand the principles of the embodiments of the present invention. At the same time, for those skilled in the art, according to the embodiments of the present invention, there may be changes in the specific implementation methods and application scopes. In summary, the contents of this specification should not be understood as limiting the present invention.

Claims

1. A vertical cooling temperature control device for a lime rotary kiln, comprising a vertical cooler body (1), wherein a plurality of conical lower hoppers (101) are provided at the bottom of the vertical cooler body (1), characterized in that: A central wind tower (2) and a plurality of auxiliary wind towers (3) are provided inside the vertical cooler body (1), and the plurality of auxiliary wind towers (3) are arranged around the central wind tower (2) and are respectively located above the plurality of conical lower hoppers (101); the lower ends of the plurality of auxiliary wind towers (3) are fixedly connected to auxiliary air ducts (301), the lower ends of the plurality of auxiliary air ducts (301) are connected to second cooling pipes (302), the other ends of the plurality of second cooling pipes (302) respectively pass through the plurality of conical lower hoppers (101) and extend to the outside of the vertical cooler body (1), and the middle parts of the plurality of second cooling pipes (302) are each installed with an air control valve (303).

2. A vertical cooling temperature control device for a lime rotary kiln according to claim 1, characterized in that: The lower end of the central wind tower (2) is fixedly connected to a central air duct (201), the lower end of the central air duct (201) extends through and below the vertical cooler body (1), and the lower end of the central air duct (201) is connected to a first cooling pipe (202).

3. The vertical cooling temperature control device for a lime rotary kiln according to claim 1, characterized in that: Temperature monitors (4) are installed through the outer sides of the plurality of conical lower hoppers (101), and the signal sending ends of the plurality of temperature monitors (4) are respectively connected to the control end signals of the corresponding air control valves (303).

4. The vertical cooling temperature control device for a lime rotary kiln according to claim 1, characterized in that: A vibrating feeder (5) is installed below each of the plurality of conical lower hoppers (101), and the control ends of the plurality of vibrating feeders (5) are respectively connected to the signal sending ends of the corresponding temperature monitors (4).

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