Fire observation window of calcining furnace flame path

By installing a high-temperature resistant observation tube and glass combination inside the calcining furnace fire channel, the safety hazards and sealing problems of traditional fire observation methods have been solved, enabling efficient and safe fire observation operations and ensuring operator safety and product quality.

CN223500170UActive Publication Date: 2025-10-31XINJIANG TIANSHAN YINGDA CARBON CO LTD
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Patent Information

Application Number
CN202423027527.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-09
Publication Date
2025-10-31
Estimated Expiration
2034-12-09

AI Technical Summary

Technical Problem

The existing design of the observation hole in the calcining furnace flue has safety hazards and sealing problems, which affect product quality and operator safety. In addition, the traditional method of observing the fire is inefficient.

Method used

The system uses a combination of high-temperature resistant observation tubes and glass. Glass is fixedly installed inside the observation tube, and the observation tube with a suitable diameter is placed inside the furnace body wall. Sealing gaskets and cover plates are used to improve the sealing performance and prevent personnel from operating the tube by pushing it.

Benefits of technology

It improves operational safety, reduces air leakage, ensures negative pressure, and enhances work efficiency and product quality.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223500170U_ABST
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Abstract

The utility model belongs to the technical field of pot-type calcining furnaces, and discloses a fire observation window of a calcining furnace flame path, which comprises a pot body, a plurality of partition plates are arranged in the pot body, the pot body is divided into a plurality of flame paths by the partition plates, a plurality of fire observation mechanisms are fixedly mounted on one side, close to the flame paths, of the inner wall of the pot body, and each fire observation mechanism further comprises a fixing support. A fire observation pipe is welded to one side of the fixing support, the other end of the fire observation pipe extends out of the outer wall of the tank body, glass is fixedly installed in the fire observation pipe, threaded holes are formed in the four corners of the fixing support, and sealing gaskets are fixedly installed on the four edges of the side, close to the outer wall of the tank body, of the glass. According to the fire observation window of the calcining furnace flame path, the high-temperature-resistant fire observation pipe with the proper diameter is designed according to the size of the flame path and arranged in the large wall of the furnace body, and the glass is fixedly installed in the fire observation pipe, so that compared with a traditional fire observation mode, on one hand, workers do not need to carry out ejector rod operation, and on the other hand, the working efficiency is improved; and the safety of personnel is improved.
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Description

Technical Field

[0001] This utility model belongs to the technical field of tank-type calcining furnaces, specifically a fire observation window for the fire channel of a calcining furnace. Background Technology

[0002] The calcining furnace for petroleum coke is a common processing technology both domestically and internationally. It is a thermal device that indirectly heats carbonaceous materials within a fixed calcining tank to complete the calcination process. The calcining furnace is a widely used furnace type in the carbon industry. During calcination, the raw material is added to the tank through a top-feeding device and gradually heated by the flues located on both sides of the tank as it moves downwards. The heat generated by the combustion of fuel in the flues is indirectly transferred to the raw material through the flue walls. When the temperature of the raw material reaches 350–600℃, a large amount of volatile matter is released. This volatile matter is collected through a volatile matter channel and sent to the flues for combustion. The combustion of volatile matter is another heat source for the calcining furnace. The raw material undergoes high-temperature calcination (above 1200–1300℃) in an air-isolated environment, completing a series of physicochemical changes. Afterward, it enters a water jacket for cooling from the bottom of the tank and is finally discharged from the furnace by a discharge device. During the process control of the calcining furnace, it is necessary to constantly monitor the combustion situation within the flues.

[0003] In the prior art, in order to facilitate the observation of the combustion of the calcining furnace flue, many flue observation holes and temperature and pressure measuring holes are generally provided on the main wall of the furnace body to facilitate the operation and monitoring of the furnace. The ground is constructed with clay refractory bricks, heat-insulating bricks and red bricks. Since petroleum coke calcining furnaces consist of numerous small production unit "tanks," the temperature, negative pressure, and volatile matter content within each unit need to be monitored during production. Currently, most petroleum coke production enterprises monitor the conditions inside the furnace through observation holes in the flue. These observation holes must be manually opened to observe the furnace interior. However, as the quality requirements for calcined petroleum coke products become increasingly stringent, the temperature and negative pressure changes caused by opening the observation holes have a growing impact on product quality. Furthermore, when the observation holes are opened, high-temperature flue gas from inside the furnace can easily spray outwards, potentially injuring operators. Operators often need to use long poles to push the observation hole covers open to observe the furnace interior from a distance. Even when not observing, the observation hole covers cannot completely seal the observation holes, leading to air leakage and negatively impacting both the inside and outside of the furnace. This also affects product quality. To address these issues, a new observation window for the calcining furnace flue is proposed. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems by providing a viewing window for the fire channel of a calcining furnace, comprising:

[0005] The tank body has multiple partitions inside, which divide the tank body into multiple fire channels. Multiple fire observation mechanisms are fixedly installed on the inner wall of the tank body near the fire channels. Each fire observation mechanism also includes a fixed support. A fire observation tube is welded to one side of the fixed support. The other end of the fire observation tube extends out of the outer wall of the tank body. Glass is fixedly installed inside the fire observation tube.

[0006] The above technical solution involves designing a high-temperature resistant observation tube with an appropriate diameter based on the size of the fire channel and placing it inside the furnace wall. By fixing glass inside the observation tube, compared with the traditional observation method, it eliminates the need for personnel to operate the rod, improves work efficiency, and increases personnel safety.

[0007] In a preferred embodiment, threaded holes are provided at all four corners of the fixed bracket.

[0008] Through the above technical solution, the fixed bracket is fixedly installed on the inner wall of the tank by threaded holes and bolts, thereby improving the sealing between the fire observation mechanism and the tank.

[0009] In a preferred embodiment, sealing gaskets are fixedly installed on all four sides of the glass near the outer wall of the tank.

[0010] The above technical solution improves the sealing between the glass and the observation tube by setting a sealing gasket, reduces air leakage, and ensures a negative pressure system.

[0011] In a preferred embodiment, the fire-observation tube extends out of the outer wall of the tank and is hinged to a cover plate.

[0012] The above technical solution protects the observation tube by setting a cover plate, preventing dust and other impurities from entering the observation tube when the observation mechanism is not in use.

[0013] In a preferred embodiment, both the fixed bracket and the fire-viewing tube are made of high-temperature resistant steel.

[0014] In a preferred embodiment, the size of the fire-viewing tube is designed according to the size of the fire-viewing mechanism.

[0015] In a preferred embodiment, the glass is high-temperature resistant glass.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effect of this utility model is that it provides a fire observation window for the fire channel of a calcining furnace.

[0017] 1. Design a high-temperature resistant observation tube with an appropriate diameter according to the size of the fire channel and place it inside the furnace body wall. By fixing and installing glass inside the observation tube, compared with the traditional observation method, on the one hand, personnel do not need to operate the rod, and on the other hand, work efficiency is improved and personnel safety is increased.

[0018] 2. By setting a sealing gasket, the airtightness between the glass and the observation tube is improved, air leakage is reduced, and a negative pressure system is ensured. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the fire-observation mechanism in this utility model;

[0021] Figure 3 This utility model Figure 1 A magnified view of A in the middle.

[0022] The markings in the diagram are: 1-tank body; 2-baffle plate; 3-fire channel; 4-fire observation mechanism; 5-fixed bracket; 6-fire observation tube; 7-glass; 8-cover plate; 9-sealing gasket; 10-threaded hole. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0024] The following will combine Figure 1-3 A detailed description is provided of the observation window of a calcining furnace fire channel according to an embodiment of this utility model.

[0025] Example:

[0026] A viewing window for a calcining furnace flue includes:

[0027] Tank 1 has multiple partitions 2 inside, which divide the tank 1 into multiple fire channels 3. Multiple observation mechanisms 4 are fixedly installed on the inner wall of the tank 1 near the fire channels 3. The observation mechanism 4 also includes a fixed bracket 5. The fixed bracket 5 has threaded holes 10 at each of its four corners. The fixed bracket 5 is fixed to the inner wall of the tank 1 through the threaded holes 10 and bolts, which improves the sealing between the observation mechanism 4 and the tank. An observation tube 6 is welded to one side of the fixed bracket 5. Both the fixed bracket 5 and the observation tube 6 are made of high-temperature resistant steel. The size of the observation tube 6 is designed according to the size of the observation mechanism 4. The other end of the observation tube 6 extends out of the outer wall of the tank 1. A glass 7 made of high-temperature resistant glass is fixedly installed inside the observation tube 6. The high-temperature resistant observation tube 6 with a suitable diameter is designed according to the size of the fire channel 3 and placed inside the furnace wall. By fixing the glass 7 inside the observation tube 6, compared with the traditional observation method, on the one hand, personnel do not need to operate the rod, and on the other hand, work efficiency is improved and personnel safety is increased.

[0028] Sealing gaskets 9 are fixedly installed on all four sides of the glass 7 near the outer wall of the tank body 1. By setting the sealing gaskets 9, the sealing between the glass 7 and the observation tube 6 is improved, air leakage is reduced, and negative pressure system is ensured.

[0029] The observation tube 6 extends out of the outer wall of the tank body 1 and is hinged to a cover plate 8. The cover plate 8 protects the observation tube 6 and prevents dust and other impurities from entering the interior of the observation tube 6 when the observation mechanism 4 is not in use.

[0030] Working principle:

[0031] A high-temperature resistant observation tube 6 of appropriate diameter is designed according to the size of the fire channel 3 and placed inside the furnace body wall. By fixing and installing glass 7 inside the observation tube 6, compared with the traditional observation method, on the one hand, personnel do not need to operate the rod, and on the other hand, work efficiency is improved and personnel safety is increased.

[0032] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A viewing window for a calcining furnace fire channel, characterized in that: include: The tank (1) has multiple partitions (2) inside. The tank (1) is divided into multiple fire channels (3) by the partitions (2). Multiple fire observation mechanisms (4) are fixedly installed on the inner wall of the tank (1) near the fire channel (3). The fire observation mechanism (4) also includes a fixed bracket (5). A fire observation tube (6) is welded to one side of the fixed bracket (5). The other end of the fire observation tube (6) extends out of the outer wall of the tank (1). A glass (7) is fixedly installed inside the fire observation tube (6).

2. The observation window of a calcining furnace fire channel as described in claim 1, characterized in that: The fixed bracket (5) has threaded holes (10) at all four corners.

3. The observation window of a calcining furnace fire channel as described in claim 1, characterized in that: The glass (7) is fixedly installed with sealing gaskets (9) on all four sides of the side of the outer wall of the tank (1).

4. The observation window of the calcining furnace fire channel as described in claim 1, characterized in that: The observation tube (6) extends out of the outer wall of the tank (1) and is hinged to a cover plate (8).

5. The observation window of a calcining furnace fire channel as described in claim 1, characterized in that: Both the fixed bracket (5) and the observation tube (6) are made of high-temperature resistant steel.

6. The observation window of a calcining furnace fire channel as described in claim 1, characterized in that: The size of the fire-observing tube (6) is designed according to the size of the fire-observing mechanism (4).

7. The observation window of a calcining furnace fire channel as described in claim 1, characterized in that: The glass (7) is high-temperature resistant glass.