Cooling device for lime shaft kiln roof radar material level meter

Abstract

The utility model discloses a kind of cooling device of lime shaft kiln top radar material level meter, including shaft kiln body, the radar material level meter includes: electronic unit, radiator, radiator, mounting flange and horn mouth antenna, mounting hole is opened between the radiator and radiator, cooling air inlet is welded fixed in mounting hole, dust removal mechanism is sleeved in the inlet end of small air blower, the outlet end of small air blower is fixedly connected with cooling air inlet by air supply pipeline.The utility model is through initiative cooling air duct and interlock control design, cooling function can be started quickly during shaft kiln heat preservation kiln stop, effectively control radar material level meter temperature in safety range, avoid electrical component aging burnout;With interlock control module and shaft kiln control system linkage, without manual intervention, the automatic start-stop of cooling device can be realized, reduce manual operation step, avoid equipment damage risk caused by manual operation delay simultaneously;Simple structure, low in cost.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for lime vertical kiln production, and in particular to a cooling device for a radar level gauge at the top of a lime vertical kiln. Background Technology

[0002] In the production and calcination process of lime vertical kilns, accurate measurement of the material level inside the kiln is a key link to ensure production efficiency and product quality. Currently, the industry generally adopts the method of installing a material level gauge on the top of the kiln to achieve this function.

[0003] In recent years, radar level gauges have gradually replaced traditional mechanical contact level gauges and have been widely used in lime vertical kiln production due to their significant advantages such as real-time detection, non-contact measurement, and convenient maintenance. However, due to the structural characteristics of lime vertical kilns and the limitations of the installation location of the level gauge on the kiln top, during kiln shutdown operations such as fire burying or ventilation cessation, the hot air inside the kiln rises rapidly due to the chimney effect and reaches the level detection port directly. At this time, the original cooling equipment such as dust removal fans in the vertical kiln is usually in a stopped state and cannot effectively cool the radar level gauge, causing the radar level gauge temperature to rise sharply. Its internal electrical components are prone to aging, burning, and other failures, which not only increases equipment maintenance costs and downtime, but may also affect the subsequent production scheduling and safe operation of the vertical kiln due to the interruption of level detection. Therefore, in light of the above situation, there is an urgent need to develop a cooling device for the radar level gauge at the top of a lime vertical kiln. This device, through an active cooling duct and interlocking control design, can quickly activate the cooling function during vertical kiln shutdown for heat preservation, effectively controlling the temperature of the radar level gauge within a safe range, preventing aging and burnout of electrical components, extending equipment lifespan, and reducing equipment maintenance and replacement costs. Furthermore, by linking the interlocking control module with the vertical kiln control system, the cooling device can be automatically started and stopped without manual intervention, reducing manual operation steps and avoiding the risk of equipment damage due to delays caused by manual operation. This simple and low-cost cooling device for the radar level gauge at the top of a lime vertical kiln would overcome the shortcomings of current practical applications and meet current needs. Utility Model Content

[0004] The purpose of this invention is to provide a cooling device for a radar level gauge at the top of a lime vertical kiln, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A cooling device for a radar level gauge at the top of a vertical lime kiln includes a vertical kiln body, a radar level gauge, an air supply duct, a small blower, a dust removal mechanism, and a cooling air inlet. The radar level gauge is installed at the top of the vertical kiln body, facing the interior of the kiln body. The radar level gauge includes an electronic unit, a radiator, a radiator, a mounting flange, and a horn-shaped antenna. The radiator is connected to the lower side of the electronic unit, and the radiator is connected to the lower end of the radiator. The radiator is fixed to the mounting flange by bolts. The horn-shaped antenna is fixed to the bottom of the mounting flange. A mounting hole is provided between the radiator and the radiator. The cooling air inlet is welded and fixed in the mounting hole. The small blower is fixedly installed at the top of the vertical kiln body. The dust removal mechanism is fitted onto the inlet end of the small blower. The outlet end of the small blower is fixedly connected to the cooling air inlet through the air supply duct. An interlocking control module is installed at the top of the vertical kiln body, and the interlocking control module is electrically connected to the small blower.

[0006] Preferably, the air supply duct is made of 316 stainless steel and a flow regulating valve is installed on the air supply duct.

[0007] Preferably, the air supply duct is made of 316 stainless steel and a flow regulating valve is installed on the air supply duct.

[0008] Preferably, the dust removal mechanism includes a sleeve, a first filter screen, and a second filter screen. The sleeve is fitted over the air inlet of the small blower. The first filter screen and the second filter screen are respectively fixed inside the sleeve, with the first filter screen located to the right of the second filter screen.

[0009] Preferably, the mesh size of the second filter is smaller than that of the first filter.

[0010] The beneficial effects of this utility model are as follows: When the vertical kiln is in normal production, the existing cooling equipment, such as the dust collector fan, receives the normal production signal from the vertical kiln control system via the interlocking control module. The small blower remains off, and the radar level gauge relies on its existing heat dissipation structure for heat dissipation. When the vertical kiln is in a heat preservation shutdown state, the vertical kiln control system sends a shutdown signal to the interlocking control module. The interlocking control module immediately triggers the small blower to start, and airflow enters the radar level gauge through the air supply pipe and cooling air inlet. The airflow flows sequentially through the radiator, electronic unit, and other components, absorbing heat before being discharged from the horn-shaped antenna. The airflow then passes through the first... The first and second filters perform dual filtration of the airflow at the inlet of the small blower, removing dust and preventing it from entering the radar level gauge. Simultaneously, the continuously flowing cold air forms a positive airflow inside the horn-shaped antenna, preventing hot air from rising into the radar level gauge, thus providing dual protection. When the vertical kiln is in a production resumption state, the vertical kiln control system sends a production resumption signal to the interlock control module. The interlock control module delays shutting down the small blower. After the original cooling equipment, such as the vertical kiln's own dust removal fan, starts and operates stably, the cold air delivery from the small blower is stopped, ensuring that the radar level gauge remains in a safe temperature environment during production state switching. In summary, this utility model, through its active cooling air duct and interlocking control design, can quickly activate the cooling function during vertical kiln insulation shutdown, effectively controlling the radar level gauge temperature within a safe range, preventing electrical component aging and burnout, extending equipment lifespan, and reducing equipment maintenance and replacement costs. By linking the interlocking control module with the vertical kiln control system, the cooling device can be automatically started and stopped without manual intervention, reducing manual operation steps and avoiding the risk of equipment damage due to delays caused by manual operation. The structure is simple and the cost is low. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This utility model Figure 1 A partial view at point A in the middle.

[0013] Figure 3 This is an internal sectional view of the dust removal mechanism in this utility model.

[0014] Figure 4 This is a schematic diagram showing the disassembled state of the radar level gauge in this utility model.

[0015] Figure 5 This is a schematic diagram of the disassembled state of a radar level gauge in the prior art.

[0016] Legend: 1. Vertical kiln body; 2. Radar level gauge; 201. Electronic unit; 202. Radiator; 203. Radar; 204. Mounting flange; 205. Horn antenna; 3. Air supply duct; 301. Flow regulating valve; 4. Small blower; 5. Dust removal mechanism; 501. Sleeve; 502. First filter screen; 503. Second filter screen; 6. Interlocking control module; 7. Cooling air inlet; 8. Vertical kiln control system. Detailed Implementation

[0017] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0018] Specific implementation examples are given below.

[0019] See Figures 1-5 In this embodiment of the present invention, a cooling device for a radar level gauge at the top of a vertical lime kiln includes a vertical kiln body 1, a radar level gauge 2, an air supply duct 3, a small blower 4, a dust removal mechanism 5, and a cooling air inlet 7. The radar level gauge 2 is installed at the top of the vertical kiln body 1 and faces the interior of the kiln body 1. The radar level gauge 2 detects the material height inside the vertical kiln body 1. The radar level gauge 2 includes: an electronic unit 201, a radiator 202, a radiator 203, a mounting flange 204, and a horn antenna 205. The lower side of the electronic unit 201 is connected to the radiator 202, and the lower end of the radiator 202 is connected to the radiator 203. The radiator 203 is fixed to the mounting flange 204 by bolts. A horn-shaped antenna 205 is fixed to the bottom of the 4. An installation hole is provided between the radiator 202 and the radiator 203. The cooling air inlet 7 is welded and fixed in the installation hole. The location of the cooling air inlet 7 avoids the signal transmission path of the radiator 203 on the radar level gauge 2, so as not to affect the level detection accuracy. This allows the airflow to enter the radar level gauge 2 from the cooling air inlet 7. The small blower 4 is fixedly installed on the top of the vertical kiln body 1. The dust removal mechanism 5 is sleeved on the inlet end of the small blower 4. The outlet end of the small blower 4 is fixedly connected to the cooling air inlet 7 through the air supply pipe 3. The small blower 4 delivers the airflow to the cooling air inlet 7. The airflow enters the radar level gauge 2 from the cooling air inlet 7 and carries away the heat.

[0020] An interlocking control module 6 is installed on the top of the vertical kiln body 1. The interlocking control module 6 is electrically connected to the small blower 4. The interlocking control module 6 is equipped with a delayed shutdown module to realize the delayed shutdown function. After the vertical kiln resumes production and the original cooling equipment is started, the small blower 4 will stop running.

[0021] The air supply duct 3 is equipped with a flow regulating valve 301, which controls the airflow. The air supply duct 3 is made of 316 stainless steel, which gives it good high temperature resistance and corrosion resistance.

[0022] The dust removal mechanism 5 includes a sleeve 501, a first filter screen 502, and a second filter screen 503. The sleeve 501 is fitted over the air inlet of the small blower 4. The first filter screen 502 and the second filter screen 503 are respectively fixed inside the sleeve 501. The first filter screen 502 is located to the right of the second filter screen 503. The mesh size of the second filter screen 503 is smaller than that of the first filter screen 502. In use, the airflow at the air inlet of the small blower 4 is double-filtered through the first filter screen 502 and the second filter screen 503 to remove dust and prevent dust from entering the radar level gauge 2.

[0023] The vertical kiln body 1 is equipped with a vertical kiln control system 8. The flow regulating valve 301 and the interlock control module 6 are electrically connected to the vertical kiln control system 8. The vertical kiln control system 8 is also used to control the electrical equipment of the vertical kiln body 1 itself for overall electrical control.

[0024] Working principle: The cooling device of the radar level gauge at the top of the vertical lime kiln operates as follows: When the kiln body 1 is in normal production, the existing cooling equipment, such as the dust collector fan, is operated by the interlock control module 6, which receives the normal production signal from the vertical kiln control system 8. The small blower 4 remains off, and the radar level gauge 2 relies on its existing heat dissipation structure for cooling. When the kiln body 1 is in a heat preservation shutdown state, the vertical kiln control system 8 sends a shutdown signal to the interlock control module 6. The interlock control module 6 immediately triggers the small blower 4 to start. Airflow enters the radar level gauge 2 through the air supply pipe 3 and cooling air inlet 7. The airflow flows sequentially through components such as the radiator 202 and electronic unit 201, absorbing heat before being discharged from the horn antenna 205 and passing through the first filter. 502 and the second filter 503 perform dual filtration of the airflow at the air inlet of the small blower 4 to remove dust and prevent it from entering the radar level gauge 2. At the same time, the continuously flowing cold air forms a positive airflow inside the horn antenna 205, blocking the hot air in the kiln from entering the radar level gauge 2, thus achieving dual protection for the radar level gauge 2. When the vertical kiln body 1 is in the production resumption state, the vertical kiln control system 8 sends a production resumption signal to the interlock control module 6. The interlock control module 6 delays shutting down the small blower 4. After the original cooling equipment such as the dust removal fan of the vertical kiln body 1 starts and runs stably, the cold air delivery of the small blower 4 is stopped, ensuring that the radar level gauge 2 is always in a safe temperature environment during the production state switching process.

[0025] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A cooling device for a radar level gauge on the top of a vertical lime kiln, characterized in that, The system includes a vertical kiln body (1), a radar level gauge (2), an air supply duct (3), a small blower (4), a dust removal mechanism (5), and a cooling air inlet (7). The radar level gauge (2) is installed on the top of the vertical kiln body (1) and faces the interior of the kiln body (1). The radar level gauge (2) includes an electronic unit (201), a radiator (202), a radiator (203), a mounting flange (204), and a horn antenna (205). The radiator (202) is connected to the lower side of the electronic unit (201), and the radiator (203) is connected to the lower end of the radiator (202). The radiator (203) is bolted to the mounting flange. (204) is fixed, and a horn-mouth antenna (205) is fixed at the bottom of the mounting flange (204). An installation hole is provided between the radiator (202) and the radiator (203). The cooling air inlet (7) is welded and fixed in the installation hole. The small blower (4) is fixedly installed on the top of the vertical kiln body (1). The dust removal mechanism (5) is sleeved on the inlet end of the small blower (4). The outlet end of the small blower (4) is fixedly connected to the cooling air inlet (7) through the air supply pipe (3). An interlock control module (6) is installed on the top of the vertical kiln body (1). The interlock control module (6) is electrically connected to the small blower (4).

2. The cooling device for the radar level gauge at the top of a vertical lime kiln according to claim 1, characterized in that, The interlocking control module (6) is equipped with a delayed shutdown module.

3. The cooling device for the radar level gauge at the top of a lime vertical kiln according to claim 1, characterized in that, The air supply duct (3) is made of 316 stainless steel and a flow regulating valve (301) is installed on the air supply duct (3).

4. The cooling device for the radar level gauge at the top of a lime vertical kiln according to claim 1, characterized in that, The dust removal mechanism (5) includes: a sleeve (501), a first filter screen (502), and a second filter screen (503). The sleeve (501) covers the air inlet of the small blower (4). The first filter screen (502) and the second filter screen (503) are respectively fixed inside the sleeve (501). The first filter screen (502) is located to the right of the second filter screen (503).

5. The cooling device for the radar level gauge at the top of a lime vertical kiln according to claim 4, characterized in that, The mesh size of the second filter (503) is smaller than that of the first filter (502).

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