Lime calcining device convenient for waste heat recovery

Abstract

The lime calcining device comprises a calcining furnace body and an energy storage box, a waste heat recovery frame is arranged on the upper surface of the calcining furnace body, the adjacent side faces of the waste heat recovery frame and the calcining furnace body are jointly and fixedly communicated with a conduction piece, a treatment frame is arranged on the upper surface of the waste heat recovery frame, and a waste heat recovery box is arranged on the upper surface of the treatment frame. And a heat exchange pipe fitting is arranged in the waste heat recovery frame, and a circulating pump body is fixedly installed on the upper surface of the calcining furnace body. According to the device, the circulating pump body, the main pipe body, the auxiliary pipe body and the heat exchange pipe fitting form a waste heat recovery circulating system, the circulating pump body pumps out a medium in the energy storage box through the main pipe body, and the medium is conveyed to the heat exchange pipe fitting in the waste heat recovery frame through the auxiliary pipe body; the medium exchanges heat with the waste heat of the waste gas conducted by the conducting piece, and flows back to the energy storage box after absorbing heat, so that the waste heat generated by the calcining furnace body can be continuously and efficiently recycled, and the utilization efficiency of energy is improved.

Description

Technical Field

[0001] This utility model relates to the field of lime calcination, and in particular to a lime calcination device that facilitates the recovery of waste heat. Background Technology

[0002] Lime is an air-hardening inorganic cementing material with calcium oxide as its main component. Lime is made by calcining products with high calcium carbonate content, such as limestone, dolomite, chalk, and shells, at high temperatures. Lime was one of the earliest cementing materials used. After removing the carbon dioxide released during decomposition, the product obtained with calcium oxide (CaO) as its main component is lime.

[0003] Lime calcination is a crucial step in industrial production. Traditional lime calcination equipment suffers from numerous problems during operation, with waste heat being a particularly prominent issue. The calcination process generates large amounts of high-temperature waste gas and hot materials, which are typically released directly into the environment. This not only results in significant energy waste but also causes thermal pollution. Furthermore, the difficulty in recovering this waste heat leads to substantial heat loss during calcination, further reducing energy efficiency. Therefore, we propose a lime calcination device that facilitates waste heat recovery to address these problems. Utility Model Content

[0004] The purpose of this invention is to provide a lime calcination device that facilitates waste heat recovery, in order to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A lime calcination device for easy waste heat recovery includes a calcination furnace body and an energy storage box. A waste heat recovery frame is provided on the upper surface of the calcination furnace body. The waste heat recovery frame and an adjacent side of the calcination furnace body are fixedly connected by a conductive element. A processing frame is provided on the upper surface of the waste heat recovery frame. A heat exchange pipe is provided inside the waste heat recovery frame. A circulating pump body is fixedly installed on the upper surface of the calcination furnace body. The output end of the circulating pump body is fixedly connected to a secondary pipe body. The end of the secondary pipe body away from the circulating pump body passes through the waste heat recovery frame and is connected to the heat exchange pipe body. One end of the heat exchange pipe body passes through the waste heat recovery frame and is connected to the energy storage box. A coarse filter screen is fixedly installed at the top of the processing frame. Activated carbon filter, fiber filter, and ceramic filter are fixedly connected sequentially from top to bottom inside the processing frame.

[0007] In a further embodiment, the input end of the circulating pump body is connected to the energy storage box through the main pipe body, and a burner is provided on the outer surface of the calcining furnace body.

[0008] In a further embodiment, an injection pipe is provided on the upper surface of the energy storage box, and a discharge pipe is provided on the right side of the energy storage box.

[0009] In a further embodiment, a temperature display is fixedly installed on the right side of the energy storage box, and a temperature probe is provided at the bottom of the temperature display, with the probe of the temperature probe located inside the energy storage box.

[0010] In a further embodiment, a controller is fixedly installed on the front of the energy storage box, and an observation strip is fixedly connected to the front of the energy storage box.

[0011] In a further embodiment, the inner bottom wall of the waste heat recovery frame is fixedly connected to two support members, and the upper surface of each support member is fixedly connected to the outer surface of the heat exchange tube.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] I. This device constitutes a waste heat recovery circulation system through a circulating pump body, a main pipe body, a secondary pipe body, and heat exchange pipe fittings. The circulating pump body extracts the medium (such as water or other heat-conducting liquid) from the energy storage tank through the main pipe body and transports it through the secondary pipe body to the heat exchange pipe fittings in the waste heat recovery frame. In the heat exchange pipe fittings, the medium exchanges heat with the waste heat of the exhaust gas from the calcining furnace body through the conductive parts. After absorbing heat, it flows back to the energy storage tank, which can continuously and efficiently recover the waste heat generated by the calcining furnace body, improve energy utilization efficiency, and reduce energy waste.

[0014] II. This device uses a coarse filter, activated carbon filter, fiber filter, and ceramic filter arranged sequentially from top to bottom within the processing frame to perform multi-layer filtration and purification of the waste gas medium passing through the heat exchange pipes. Through multi-layer filtration, the cleanliness of the medium for recovering waste heat is ensured, impurities are prevented from causing damage to the outside world, the environment is protected, and the service life of the equipment is extended. Attached Figure Description

[0015] Figure 1 A frontal perspective three-dimensional schematic diagram of a lime calcination device designed to facilitate waste heat recovery.

[0016] Figure 2 A top view of a lime calcination device designed to facilitate waste heat recovery.

[0017] Figure 3 A schematic diagram of the internal structure of the waste heat recovery frame in a lime calcination device designed to facilitate the recovery of waste heat.

[0018] Figure 4 A schematic diagram of the interior of the processing frame in a lime calcination device designed to facilitate waste heat recovery.

[0019] In the diagram: 1. Calcination furnace body; 2. Burner; 3. Energy storage box; 4. Controller; 5. Observation bar; 6. Temperature display; 7. Temperature probe; 8. Injection pipe; 9. Discharge pipe; 10. Waste heat recovery frame; 11. Processing frame; 12. Conductor; 13. Heat exchange pipe fittings; 14. Support; 15. Ceramic filter element; 16. Fiber filter element; 17. Activated carbon filter element; 18. Circulation pump body; 19. Main pipe body; 20. Secondary pipe body; 21. Coarse filter screen. Detailed Implementation

[0020] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0021] In the description of this utility model, it should be noted that, 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 mechanical connection or an electrical 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 based on the specific circumstances.

[0022] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4In this utility model, a lime calcination device for easy waste heat recovery includes a calcination furnace body 1 and an energy storage box 3. A waste heat recovery frame 10 is provided on the upper surface of the calcination furnace body 1. A conductor 12 is fixedly connected to the waste heat recovery frame 10 and the adjacent side of the calcination furnace body 1. A processing frame 11 is provided on the upper surface of the waste heat recovery frame 10. A heat exchange pipe 13 is provided inside the waste heat recovery frame 10. A circulating pump body 18 is fixedly installed on the upper surface of the calcination furnace body 1. A secondary pipe 20 is fixedly connected to the output end of the circulating pump body 18. The end of the secondary pipe 20 away from the circulating pump body 18 passes through the waste heat recovery frame 10 and is connected to the heat exchange pipe 13. One end of the heat exchange pipe 13 passes through the waste heat recovery frame 10 and is connected to the energy storage box 3. A coarse filter screen 21 is fixedly installed at the top of the processing frame 11. An activated carbon filter element 17, a fiber filter element 16, and a ceramic filter element 15 are fixedly connected from top to bottom inside the processing frame 11. The coarse filter screen 21 can intercept relatively small amounts of waste heat. For large impurity particles, activated carbon filter element 17 uses its adsorption properties to remove odors, pigments, and some harmful chemicals from the medium. Fiber filter element 16 further filters out small particles and suspended solids, while ceramic filter element 15 can filter out even finer impurities and microorganisms. Through multi-layer filtration, the cleanliness of the exhaust gas is ensured. The waste heat recovery circulation system is formed by circulating pump body 18, main pipe body 19, secondary pipe body 20, and heat exchange tubes 13. Circulating pump body 18 draws the medium, such as water or other heat-conducting liquid, from the energy storage tank 3 through the main pipe body 19 and transports it through the secondary pipe body 20 to the heat exchange tubes 13 in the waste heat recovery frame 10. In the heat exchange tubes 13, the medium exchanges heat with the waste heat of the exhaust gas conducted through the conductor 12. After absorbing heat, it flows back to the energy storage tank 3, which can continuously and efficiently recover the waste heat generated by the calcining furnace body 1, improve energy utilization efficiency, and make the recovered waste heat more safely and effectively utilized.

[0024] The input end of the circulating pump body 18 is connected to the energy storage box 3 through the main pipe body 19. The burner 2 is provided on the outer surface of the calcining furnace body 1. The main pipe body 19 is located at the bottom of the energy storage box 3, ensuring that the medium at the bottom of the energy storage box 3 can be extracted. The burner 2 is a device that sprays fuel and air in a certain way to mix and burn. It is mainly used to convert fuel into heat energy through combustion. It is widely used in various equipment and systems, including boilers, industrial furnaces, etc. The principle is to mix air and fuel in an appropriate proportion through a premixing device to make it burn completely. This design ensures stable combustion of fuel and improves the efficiency of heat energy conversion. The upper surface of the energy storage box 3 is provided with an injection pipe 8, and the right side of the energy storage box 3 is provided with a discharge pipe 9. The injection pipe 8 can be used to replenish the medium in the energy storage box 3, and the discharge pipe 9 on the right side facilitates the discharge of the medium or replacement operations.

[0025] A temperature display 6 is fixedly installed on the right side of the energy storage tank 3. A temperature probe 7 is installed at the bottom of the temperature display 6, and the probe of the temperature probe 7 is located inside the energy storage tank 3. The temperature probe 7 can monitor the temperature of the medium inside the energy storage tank 3 in real time. The operator can intuitively understand the temperature change through the temperature display 6. A controller 4 is fixedly installed on the front of the energy storage tank 3, and an observation strip 5 is fixedly connected to the front of the energy storage tank 3. The controller 4 can centrally control the entire waste heat recovery device. The observation strip 5 allows the operator to intuitively observe the liquid level and other conditions of the medium inside the energy storage tank 3. Two support members 14 are fixedly connected to the inner bottom wall of the waste heat recovery frame 10. The upper surface of each support member 14 is fixedly connected to the outer surface of the heat exchange tube 13. The two support members 14 provide stable support for the heat exchange tube 13, ensuring that the heat exchange tube 13 will not shift due to gravity or other external forces during the heat exchange process.

[0026] The working principle of this utility model is as follows:

[0027] The injection pipe 8 can be used to replenish the medium in the energy storage tank 3. The calcination furnace body 1 and burner 2 are used to calcine the material. The heat of the exhaust gas generated during the calcination process flows into the waste heat recovery frame 10 through the conductor 12. At the same time, the circulation pump body 18 is started to extract the medium in the energy storage tank 3 and circulates through the auxiliary pipe body 20 and heat exchange pipe 13. The heat of the exhaust gas enters the waste heat recovery frame 10 and can exchange heat with the heat exchange pipe 13. After absorbing heat energy, it flows into the energy storage tank 3. The exhaust gas after heat exchange is filtered multiple times by the ceramic filter 15, fiber filter 16 and activated carbon filter 17 to ensure the cleanliness of the discharged gas. The discharge pipe 9 on the right side facilitates the discharge of the medium for use or replacement.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A lime calcining apparatus that facilitates recovery of waste heat, characterized by: The furnace includes a calcining furnace body (1) and an energy storage box (3). A waste heat recovery frame (10) is provided on the upper surface of the calcining furnace body (1). A conductor (12) is fixedly connected to the waste heat recovery frame (10) and an adjacent side of the calcining furnace body (1). A processing frame (11) is provided on the upper surface of the waste heat recovery frame (10). A heat exchange pipe (13) is provided inside the waste heat recovery frame (10). A circulating pump body (18) is fixedly installed on the upper surface of the calcining furnace body (1). The output of the circulating pump body (18) is... A secondary tube (20) is fixedly connected to the end of the secondary tube (20) away from the circulating pump body (18). The end of the secondary tube (20) passes through the waste heat recovery frame (10) and is connected to the heat exchange pipe fitting (13). One end of the heat exchange pipe fitting (13) passes through the waste heat recovery frame (10) and is connected to the energy storage box (3). A coarse filter screen (21) is fixedly installed at the top of the processing frame (11). Activated carbon filter element (17), fiber filter element (16) and ceramic filter element (15) are fixedly connected from top to bottom inside the processing frame (11).

2. A lime calcining apparatus according to claim 1, wherein: The input end of the circulating pump body (18) is connected to the energy storage box (3) through the main body (19), and the outer surface of the calcining furnace body (1) is provided with a burner (2).

3. A lime calcining device with easy recovery of waste heat as claimed in claim 1 wherein: An injection pipe (8) is provided on the upper surface of the energy storage box (3), and a discharge pipe (9) is provided on the right side of the energy storage box (3).

4. A lime calcining device with easy recovery of waste heat as claimed in claim 1 wherein: A temperature display (6) is fixedly installed on the right side of the energy storage box (3). A temperature probe (7) is provided at the bottom of the temperature display (6), and the probe of the temperature probe (7) is located inside the energy storage box (3).

5. A lime calcining device with ease of recovery of waste heat as claimed in claim 1 wherein: A controller (4) is fixedly installed on the front of the energy storage box (3), and an observation strip (5) is fixedly connected to the front of the energy storage box (3).

6. A lime calcining device that facilitates recovery of waste heat according to claim 1, characterized in that: The inner bottom wall of the waste heat recovery frame (10) is fixedly connected to two support members (14), and the upper surface of each support member (14) is fixedly connected to the outer surface of the heat exchange pipe (13).

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