An adjustable white clay delivery system
Patent Information
- Application Number
- CN202522395121.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-09-22
- Estimated Expiration
- 2035-11-12
AI Technical Summary
[0005]为此，需要提供一种外排量可调的白泥输送系统,以解决现有技术中碱回收石灰窑工段于石灰窑堵塞时大量外排白泥，易导致石灰窑温度波动大、整个系统运行不稳定易故障的问题
[0024]区别于现有技术，上述技术方案所述的外排量可调的白泥输送系统，通过水位检测机构对白泥槽的液位可以进行实时监控，在液位高于预设安全值时，可以通过控制机构打开调控阀，从而导通所述调控管路，并启动螺旋输送机，相较于较大外排管的入料口，螺旋输送机的入料口较小，且采用螺旋输送机，从而在风险发生前就主动、少量、持续地分流外排，将白泥输送总量始终稳定在石灰窑的最佳处理能力之内，从根本上预防，保证了进入石灰窑的白泥流量持续且均匀，为窑内创造了稳定的热工环境，不仅避免了温度波动造成的结圈，也提升了生石灰的煅烧质量与能源效率。另外，通过控制机构可以调节螺旋输送机的转速，从而达到调节外排量的目的，实现对白泥流量的连续、精细控制，刮板输送机至石灰窑的主流程得以持续、单向、稳定运行，仅在需要时启动并联的外排管路、调控管路，极大地提升了整个白泥制备工段的连续运行可靠性与自动化水平。
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Figure CN224783066U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of white mud alkali recovery technology, specifically to a white mud conveying system with adjustable discharge capacity. Background Technology
[0002] The current process flow of the alkali recovery lime kiln section is as follows: the white mud produced by causticization is first stored in the white mud tank, then pumped to the white mud filter by the white mud pump. After being dewatered by the white mud filter, the white mud is transported to the lime kiln by the white mud conveyor for high-temperature calcination to produce calcined lime.
[0003] Currently, the lime kiln section of alkali recovery is prone to material blockage. When the amount of white mud conveyed exceeds the actual processing capacity of the lime kiln, it is very easy to cause material blockage at the feeding end of the lime kiln, affecting normal production. In order to solve the above-mentioned material blockage problem, an emergency external discharge path can only be added, and a rough adjustment method of "large-scale external discharge" can be adopted. The path selection is controlled by the external discharge valve. The external discharge valve is closed when the kiln is normally being fed. When the white mud cannot enter the lime kiln (such as in the case of equipment failure or material blockage), the external discharge valve is opened to open the emergency external discharge path and guide the white mud to the external discharge port.
[0004] Large amounts of material discharged externally will result in a shortage of material in the lime kiln for a period of time, causing drastic temperature fluctuations and uneven distribution within the kiln. This will lead to ring formation at the kiln tail, resulting in unstable operation of the entire white mud treatment system, high failure rate, and is not conducive to the long-term stable and energy-saving operation of the lime kiln. Utility Model Content
[0005] Therefore, there is a need to provide a white mud conveying system with adjustable discharge capacity to solve the problem in the existing technology where a large amount of white mud is discharged from the alkali recovery lime kiln section when the lime kiln is blocked, which easily leads to large temperature fluctuations in the lime kiln and unstable operation and easy failure of the entire system.
[0006] To achieve the above objectives, the inventors provide a white mud conveying system with adjustable discharge capacity, comprising:
[0007] A water level detection mechanism is installed at the white mud tank to detect the liquid level of the white mud in the tank.
[0008] The scraper conveyor is provided with an external discharge pipeline and a control pipeline in sequence along the conveying direction. The external discharge pipeline includes an external discharge pipe and an external discharge valve located at the inlet of the external discharge pipe. The control pipeline includes a screw conveyor and a control valve located at the inlet of the screw conveyor. The inlet of the screw conveyor is smaller than the inlet of the external discharge pipe, and the outlet of the screw conveyor is connected to the external discharge pipe.
[0009] The control mechanism is connected to the water level detection mechanism, the drain valve, the regulating valve, and the screw conveyor to receive the liquid level value from the water level detection mechanism and control the operating speed of the drain valve, the regulating valve, and the screw conveyor.
[0010] In some embodiments, the control valve is an electric gate valve.
[0011] In some embodiments, the screw conveyor includes a body, screw blades, a rotating shaft, and a rotary motor; the screw blades are coiled around the side of the rotating shaft and disposed within the body; the rotary motor is drivenly connected to the rotating shaft and is connected to a frequency converter; the control mechanism is connected to the frequency converter to control the rotational speed of the rotary motor.
[0012] In some embodiments, the screw conveyor is a horizontal screw conveyor, and the control pipeline further includes a feed pipe, through which the screw conveyor is connected to the scraper conveyor.
[0013] In some embodiments, the scraper conveyor is a double-layer scraper conveyor, the external discharge pipeline is located at the lower starting end of the double-layer scraper conveyor, and the control pipeline is located between the external discharge pipeline and the discharge end of the double-layer scraper conveyor.
[0014] In some embodiments, it also includes:
[0015] The white mud filter has its inlet connected to a white mud tank and its outlet connected to the feed end of a scraper conveyor.
[0016] In some embodiments, it also includes:
[0017] The white mud pump is located inside the white mud tank and is connected to the inlet of the white mud filter to draw white mud from the white mud tank into the white mud filter. The white mud pump is also connected to the control mechanism.
[0018] In some embodiments, it also includes:
[0019] A lime kiln, wherein the inlet of the lime kiln is connected to the outlet of a scraper conveyor.
[0020] In some embodiments, it also includes:
[0021] The cyclone separator, scraper conveyor, cyclone separator, and lime kiln are connected in sequence.
[0022] In some embodiments, it also includes:
[0023] A temperature detection mechanism is installed inside the lime kiln to detect the temperature inside the lime kiln and is connected to the control mechanism.
[0024] Unlike existing technologies, the adjustable discharge volume white mud conveying system described in the above technical solution can monitor the liquid level of the white mud tank in real time through a water level detection mechanism. When the liquid level is higher than the preset safety value, the control mechanism can open the regulating valve, thereby opening the regulating pipeline and starting the screw conveyor. Compared with the larger discharge pipe inlet, the screw conveyor has a smaller inlet. By using a screw conveyor, the white mud is actively, in small amounts, and continuously diverted for discharge before any risk occurs, keeping the total amount of white mud conveyed within the optimal processing capacity of the lime kiln. This fundamentally prevents and ensures that the flow rate of white mud entering the lime kiln is continuous and uniform, creating a stable thermal environment inside the kiln. This not only avoids ring formation caused by temperature fluctuations but also improves the calcination quality and energy efficiency of quicklime. In addition, the speed of the screw conveyor can be adjusted by the control mechanism, thereby adjusting the discharge volume and achieving continuous and precise control of the white mud flow. The main process from the scraper conveyor to the lime kiln can operate continuously, unidirectionally, and stably. The parallel discharge pipeline and control pipeline are only activated when needed, which greatly improves the reliability and automation level of the continuous operation of the entire white mud preparation section.
[0025] The above description of the utility model is merely an overview of the technical solution of this application. In order to enable those skilled in the art to better understand the technical solution of this application and to implement it based on the description and drawings, and to make the above-mentioned objectives and other objectives, features and advantages of this application easier to understand, the following description is provided in conjunction with the specific embodiments and drawings of this application. Attached Figure Description
[0026] The accompanying drawings are only used to illustrate the principles, implementation methods, applications, features, and effects of specific embodiments of this application and other related content, and should not be considered as limitations on this application.
[0027] In the accompanying drawings of the instruction manual:
[0028] Figure 1 This is a structural diagram of the scraper conveyor described in a specific embodiment;
[0029] Figure 2 This is a structural diagram of the adjustable discharge volume white mud conveying system described in a specific implementation method;
[0030] Figure 3 This is a structural diagram of the screw conveyor described in a specific embodiment;
[0031] Figure 4 This is a structural diagram of the double-layer scraper conveyor described in a specific embodiment;
[0032] Figure 5 This is a schematic diagram illustrating the signal transmission relationship of the adjustable discharge volume white mud conveying system described in a specific implementation method.
[0033] The reference numerals used in the above figures are explained as follows:
[0034] 1. Water level monitoring agency;
[0035] 2. White mud trough;
[0036] 3. Scraper conveyor;
[0037] 4. External drainage pipe;
[0038] 5. External drain valve;
[0039] 6. Screw conveyor;
[0040] 600. Machine body; 601. Spiral blades; 602. Shaft; 603. Rotary motor; 604. Frequency converter;
[0041] 7. Control valve;
[0042] 8. Control mechanism;
[0043] 9. Feed pipe;
[0044] 10. White mud filter;
[0045] 11. White mud pump;
[0046] 12. Lime kiln;
[0047] 13. Cyclone separator;
[0048] 14. Temperature detection agency. Detailed Implementation
[0049] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.
[0050] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0051] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0052] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.
[0053] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.
[0054] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.
[0055] As understood in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.
[0056] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.
[0057] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.
[0058] The current process flow of the alkali recovery lime kiln section is as follows: the white mud produced by causticization is first stored in the white mud tank, then pumped to the white mud filter by the white mud pump. After being dewatered by the white mud filter, the white mud is transported to the lime kiln by the white mud conveyor for high-temperature calcination to produce calcined lime.
[0059] Currently, the lime kiln section of alkali recovery is prone to material blockage. When the amount of white mud conveyed exceeds the actual processing capacity of the lime kiln, it is very easy to cause material blockage at the feeding end of the lime kiln, affecting normal production. In order to solve the above-mentioned material blockage problem, an emergency external discharge path can only be added, and a rough adjustment method of "large-scale external discharge" can be adopted. The path selection is controlled by the external discharge valve. The external discharge valve is closed when the kiln is normally being fed. When the white mud cannot enter the lime kiln (such as in the case of equipment failure or material blockage), the external discharge valve is opened to open the emergency external discharge path and guide the white mud to the external discharge port.
[0060] Large amounts of material discharged externally will result in a shortage of material in the lime kiln for a period of time, causing drastic temperature fluctuations and uneven distribution within the kiln. This will lead to ring formation at the kiln tail, resulting in unstable operation of the entire white mud treatment system, high failure rate, and is not conducive to the long-term stable and energy-saving operation of the lime kiln.
[0061] Therefore, this utility model provides a white mud conveying system with adjustable discharge volume for dehydrating, conveying, drying and calcining white mud to calcine it into lime. In particular, during operation, the liquid level in the white mud tank 2 is monitored in real time to discharge white mud and control the discharge volume. White mud is discharged in small, precise and gradual amounts to ensure a stable thermal environment and stable operation of the lime kiln 12.
[0062] Please see Figure 1 and Figure 2In a specific embodiment, the adjustable discharge volume white mud conveying system includes a water level detection mechanism 1, a scraper conveyor 3, and a control mechanism 8. The water level detection mechanism 1 is located at the white mud tank 2 to detect the liquid level of the white mud in the white mud tank 2. The scraper conveyor 3 is provided with an discharge pipeline and a control pipeline in sequence along the conveying direction. The discharge pipeline includes a discharge pipe 4 and a discharge valve 5 located at the inlet of the discharge pipe 4. The control pipeline includes a screw conveyor 6 and a control valve 7 located at the inlet of the screw conveyor 6. The inlet of the screw conveyor 6 is smaller than the inlet of the discharge pipe 4, and the outlet of the screw conveyor 6 is connected to the discharge pipe 4. The control mechanism 8 is connected to the water level detection mechanism 1, the discharge valve 5, the control valve 7, and the screw conveyor 6 to receive the liquid level value of the water level detection mechanism 1 and control the operating speed of the discharge valve 5, the control valve 7, and the screw conveyor 6.
[0063] The adjustable discharge volume white mud conveying system can monitor the liquid level of the white mud tank 2 in real time through the water level detection mechanism 1. When the liquid level is higher than the preset safety value, the control mechanism 8 can open the control valve 7 to open the control pipeline and start the screw conveyor 6. Compared with the larger discharge pipe 4, the discharge port of the screw conveyor 6 is smaller. By using the screw conveyor 6, the white mud is actively, in small amounts, and continuously diverted and discharged before any risk occurs. This keeps the total amount of white mud conveyed within the optimal processing capacity of the lime kiln 12, fundamentally preventing and ensuring that the flow rate of white mud entering the lime kiln 12 is continuous and uniform. This creates a stable thermal environment in the kiln, which not only avoids ring formation caused by temperature fluctuations but also improves the calcination quality and energy efficiency of quicklime.
[0064] In addition, the speed of the screw conveyor 6 can be adjusted by the control mechanism 8, thereby achieving the purpose of adjusting the discharge volume and realizing continuous and precise control of the white mud flow. The main process from the scraper conveyor 3 to the lime kiln 12 can operate continuously, unidirectionally and stably. The parallel discharge pipeline and control pipeline are only started when needed, which greatly improves the reliability and automation level of continuous operation of the entire white mud preparation section.
[0065] In some embodiments, a first gate and a second gate are sequentially opened at the lower part of the casing of the scraper conveyor 3. The size of the second gate is smaller than that of the first gate. The first gate is the inlet of the external discharge pipe, that is, the inlet of the external discharge pipe 4. The second gate is the inlet of the control pipe.
[0066] In some embodiments, the water level detection mechanism 1 is a level gauge, which is vertically installed on the side wall of the white mud tank 2.
[0067] In some embodiments, the control mechanism 8 has a built-in DCS system, and the control valve 7 and screw conveyor 6, which achieve precise control, constitute a linkage system.
[0068] In some embodiments, the control mechanism 8 includes a controller and a memory. The controller can be a PLC programmable logic controller. The memory stores the liquid level value of the water level detection mechanism 1 so that the controller can determine whether it is higher than a preset safety value.
[0069] The workflow of the adjustable discharge volume white mud conveying system is as follows: The water level detection mechanism 1 continuously monitors the liquid level of the white mud tank 2. When the liquid level is higher than the set safety value, the control mechanism 8 controls the control valve 7 to open the second gate and start the screw conveyor 6. At this time, the white mud is divided into two paths: the main path continues to be sent to the lime kiln 12 via the scraper conveyor 3, while the branch path is discharged in a controlled manner via the screw conveyor 6. By precisely adjusting the speed of the screw conveyor 6, the discharge flow rate can be controlled in real time, realizing the dynamic distribution of the total amount of white mud.
[0070] Both the external discharge valve 5 and the regulating valve 7 are electrically controlled valves. In some embodiments, the regulating valve 7 is an electric gate valve. The control mechanism 8 can adjust the opening degree of the electric gate valve, thereby adjusting the flow rate of white mud entering the screw conveyor 6.
[0071] Please see Figure 3 In some embodiments, the screw conveyor 6 includes a body 600, screw blades 601, a rotating shaft 602, and a rotary motor 603; the screw blades 601 are coiled around the side of the rotating shaft 602 and disposed within the body 600; the rotary motor 603 is drively connected to the rotating shaft 602 and is connected to a frequency converter 604; please refer to [link to relevant documentation]. Figure 5 The control mechanism 8 is connected to the frequency converter 604 to control the rotation speed of the rotary motor 603, so that the control mechanism 8 can control the running speed of the screw conveyor 6, thereby controlling the precise discharge volume.
[0072] In some embodiments, the screw conveyor 6 is a horizontal screw conveyor, and the control pipeline further includes a feed pipe 9. The screw conveyor 6 is connected to the scraper conveyor 3 through the feed pipe 9. The horizontal screw conveyor has a simple structure and is easy to install, maintain, and troubleshoot.
[0073] Please see Figure 4 In some embodiments, the scraper conveyor 3 is a double-layer scraper conveyor, the external discharge pipeline is located at the lower starting end of the double-layer scraper conveyor, and the control pipeline is located between the external discharge pipeline and the discharge end of the double-layer scraper conveyor.
[0074] Please see Figure 1 In some embodiments, a white mud filter 10 is also included. The inlet of the white mud filter 10 is connected to the white mud tank 2, and the outlet of the white mud filter 10 is connected to the feed end of the scraper conveyor 3, so as to dehydrate the white mud and remove the moisture in the white mud in advance, which is beneficial to the efficient calcination of the lime kiln 12 in the subsequent process.
[0075] In some embodiments, a white mud pump 11 is also included. The white mud pump 11 is disposed in the white mud tank 2 and connected to the inlet of the white mud filter 10 to draw white mud from the white mud tank 2 into the white mud filter 10. The white mud pump 11 is also connected to the control mechanism 8.
[0076] In some embodiments, a lime kiln 12 is also included, the inlet of which is connected to the outlet of the scraper conveyor 3, and the white mud is calcined into lime at high temperature through the lime kiln 12.
[0077] In some embodiments, a cyclone separator 13 is also included. The scraper conveyor 3, the cyclone separator 13, and the lime kiln 12 are connected in sequence to dry the white mud. After being dried and preheated by the cyclone separator 13, the white mud is then conveyed to the lime kiln 12. The white mud is dried and preheated in advance, which is beneficial to the efficient calcination of the lime kiln 12 in the subsequent process.
[0078] Please see Figure 5 In some embodiments, a temperature detection mechanism 14 is also included. The temperature detection mechanism 14 is located inside the lime kiln 12 to detect the temperature inside the lime kiln 12 and is connected to the control mechanism 8. Through the temperature detection mechanism 14, the temperature inside the lime kiln 12 can be monitored in real time to confirm whether there is a large temperature fluctuation inside the lime kiln 12. Based on this, the operating speed of the screw conveyor 6 can be further adjusted.
[0079] In some embodiments, the temperature detection mechanism 14 is a temperature sensor.
[0080] When a large amount of white mud needs to be discharged from the external discharge pipeline, the external discharge valve 5 can be opened by the control mechanism 8 to conduct the discharge.
[0081] In order to prevent the white mud from settling in the white mud tank 2, in some embodiments, the white mud tank 2 is equipped with a stirrer. The stirrer rotates continuously to prevent the white mud from settling to the bottom and to avoid uneven concentration, which could cause the white mud to clog the equipment.
[0082] In some embodiments, a power supply mechanism is also included, comprising a main power supply and a backup power supply, both used to provide power to the mixer. If the main power supply is interrupted, the mixer will be equipped with a backup power supply. The backup power supply is a battery, which is used to restart the mixer during a power outage.
[0083] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.
Claims
1. A white mud conveying system with adjustable discharge capacity, characterized in that, include: A water level detection mechanism is installed at the white mud tank to detect the liquid level of the white mud in the tank. The scraper conveyor is provided with an external discharge pipeline and a control pipeline in sequence along the conveying direction. The external discharge pipeline includes an external discharge pipe and an external discharge valve located at the inlet of the external discharge pipe. The control pipeline includes a screw conveyor and a control valve located at the inlet of the screw conveyor. The inlet of the screw conveyor is smaller than the inlet of the external discharge pipe, and the outlet of the screw conveyor is connected to the external discharge pipe. The control mechanism is connected to the water level detection mechanism, the drain valve, the regulating valve, and the screw conveyor to receive the liquid level value from the water level detection mechanism and control the operating speed of the drain valve, the regulating valve, and the screw conveyor.
2. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, The control valve is an electric gate valve.
3. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, The screw conveyor includes a body, screw blades, a rotating shaft, and a rotary motor; the screw blades are coiled around the side of the rotating shaft and are located inside the body; the rotary motor is driven by the rotating shaft and is connected to a frequency converter; the control mechanism is connected to the frequency converter to control the rotation speed of the rotary motor.
4. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, The screw conveyor is a horizontal screw conveyor, and the control pipeline also includes a feed pipe, through which the screw conveyor is connected to the scraper conveyor.
5. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, The scraper conveyor is a double-layer scraper conveyor. The external discharge pipeline is located at the lower starting end of the double-layer scraper conveyor, and the control pipeline is located between the external discharge pipeline and the discharge end of the double-layer scraper conveyor.
6. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, Also includes: The white mud filter has its inlet connected to a white mud tank and its outlet connected to the feed end of a scraper conveyor.
7. The white mud conveying system with adjustable discharge capacity according to claim 6, characterized in that, Also includes: The white mud pump is located inside the white mud tank and is connected to the inlet of the white mud filter to draw white mud from the white mud tank into the white mud filter. The white mud pump is also connected to the control mechanism.
8. The white mud conveying system with adjustable discharge capacity according to claim 1, characterized in that, Also includes: A lime kiln, wherein the inlet of the lime kiln is connected to the outlet of a scraper conveyor.
9. The white mud conveying system with adjustable discharge capacity according to claim 8, characterized in that, Also includes: The cyclone separator, scraper conveyor, cyclone separator, and lime kiln are connected in sequence.
10. The white mud conveying system with adjustable discharge capacity according to claim 8, characterized in that, Also includes: A temperature detection mechanism is installed inside the lime kiln to detect the temperature inside the lime kiln and is connected to the control mechanism.