Waste heat utilization system of ring type roasting furnace

Abstract

The utility model discloses a ring type roasting furnace waste heat utilization system which comprises a base, a water sump is installed on one side of the top of the base, a spiral pipeline is installed in the middle of the interior of the water sump, a filtering assembly is arranged in the middle of the top of the base, and a drying bin is installed on the other side of the top of the base. By means of the structural design of the water sump and the spiral pipeline, smoke can be discharged into the spiral pipeline, then water resources in the base are heated through the design of the spiral pipeline, heat in the smoke can be utilized once by heating the water resources, the water resources do not need to be independently heated in the later period, and the heating efficiency of the water resources is improved. And meanwhile, residual heat in the smoke can enter an exhaust pipe and then is discharged into the drying bin through a through groove, so that the wet carbon stored in the drying bin can be dried, and the smoke recycling performance in the later period is achieved.

Description

Technical Field

[0001] This utility model relates to the field of annular roasting furnace technology, specifically to an annular roasting furnace waste heat utilization system. Background Technology

[0002] The annular roasting furnace is one of the main thermal equipment in the carbon production industry. It has high energy consumption and low heat utilization rate. It is generally built underground, with only the furnace cover exposed above ground. The furnace cover is composed of a steel frame and refractory materials. In actual production and use, the surface temperature of the furnace cover in the high-temperature furnace chamber can reach more than 140°C, resulting in significant heat loss. Therefore, it is necessary to design a waste heat utilization system for the annular roasting furnace.

[0003] Existing annular roasting furnaces generate a large amount of waste smoke carrying high temperature during coal roasting, and the smoke contains many harmful substances. Direct emission of the smoke will pollute the surrounding environment. In addition, the smoke carries a large amount of heat, and direct emission of the smoke will also lead to heat loss, affecting the performance of waste heat recovery and utilization in the later stage. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat utilization system for a ring-shaped roasting furnace, which solves the problem of pollution to the surrounding environment caused by the direct emission of smoke from existing ring-shaped roasting furnaces. Furthermore, the smoke emission carries a large amount of heat, increasing heat loss and reducing the waste heat utilization performance of the ring-shaped roasting furnace.

[0005] To achieve the above objectives, a waste heat utilization system for a ring-shaped roasting furnace is provided, including a base, a water tank installed on one side of the top of the base, a spiral pipe installed in the middle of the water tank, a filter assembly installed in the middle of the top of the base, a drying chamber installed on the other side of the top of the base, an exhaust pipe installed in the middle of the drying chamber, and four sets of through slots opened on the outside of the exhaust pipe.

[0006] According to the aforementioned annular roasting furnace waste heat utilization system, the filter assembly includes a connecting rod, a cleaning plate, a filter screen plate, an activated carbon filter screen plate, a filter chamber, and an electric push rod. The filter chamber is installed at the middle position of the top of the base. Filter screen plates and activated carbon filter screen plates are respectively provided on both sides inside the filter chamber. An electric push rod is provided on the top side of the filter chamber near the filter screen plate. The output end of the electric push rod is provided with a connecting rod extending into the filter chamber. A cleaning plate is provided at the bottom of the connecting rod near the filter screen plate, and the cleaning plate is in contact with the filter screen plate.

[0007] According to the aforementioned annular roasting furnace waste heat utilization system, the top of the spiral pipe and the bottom near the filter chamber are both provided with connecting pipes, and one set of connecting pipes extends to the outside of the water tank and is connected to the external exhaust pipe, while the other set of connecting pipes extends to the inside of the filter chamber near the filter screen.

[0008] According to the aforementioned annular roasting furnace waste heat utilization system, the filter chamber is provided with an L-shaped connecting pipe on the side near the activated carbon filter screen, and the other end of the L-shaped connecting pipe is connected to the inner bottom of the exhaust pipe.

[0009] According to the waste heat utilization system of the annular roasting furnace, exhaust mesh plates are provided at the bottom of both sides of the drying chamber, and the exhaust mesh plates are connected to the inside and outside of the drying chamber.

[0010] According to the aforementioned annular roasting furnace waste heat utilization system, the top of the electric push rod is provided with a connecting block, and the bottom of the connecting block, away from the electric push rod, is connected to the top of the connecting rod.

[0011] According to the waste heat utilization system of the annular roasting furnace, support rods are provided at the four corners of the bottom of the drying chamber, and the support rods are connected to the top of the base.

[0012] According to the aforementioned annular roasting furnace waste heat utilization system, water pipes are provided on one side of the top of the base and at the bottom of the base away from the filter chamber. One set of water pipes is connected to an external water inlet pipe, while the other set of water pipes is connected to an external drain pipe.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: through the structural design of the water tank and the spiral pipe, the smoke can be discharged into the interior of the spiral pipe, and then the design of the spiral pipe can realize the heating of the water resources inside the base. By heating the water resources, the heat in the smoke can be utilized in one go, and there is no need to separately heat the water resources in the later stage. At the same time, the residual heat in the smoke can also enter the interior of the exhaust pipe, and then be discharged into the interior of the drying chamber through the channel, thereby realizing the drying of the wet carbon stored in the drying chamber, so as to realize the performance of smoke recycling in the later stage.

[0014] Finally, through the structural design of the filter screen, activated carbon filter screen, and filter chamber, the smoke can be filtered. By filtering the smoke, pollution to the surrounding environment can be reduced, ensuring the quality of subsequent emissions. Finally, through the structural design of the connecting rod, cleaning plate, and electric push rod, the internal cleaning of the filter screen can be achieved, effectively preventing blockage and ensuring the efficiency of subsequent filtration, without the need for manual cleaning and unblocking by operators.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0017] Figure 1 This is a three-dimensional structural diagram of the waste heat utilization system of the annular roasting furnace of this utility model;

[0018] Figure 2 This is a three-dimensional structural diagram of the exhaust pipe of the waste heat utilization system of the annular roasting furnace of this utility model;

[0019] Figure 3 This is a three-dimensional structural diagram of the spiral pipe of the waste heat utilization system of the annular roasting furnace of this utility model;

[0020] Figure 4 This is a front sectional view of the waste heat utilization system of the annular roasting furnace of this utility model.

[0021] In the diagram: 1. Base; 2. Connecting rod; 3. Cleaning plate; 4. Filter screen; 5. Activated carbon filter screen; 6. Filter chamber; 7. Through groove; 8. Drying chamber; 9. Exhaust pipe; 10. Electric push rod; 11. Water tank; 12. Spiral pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the 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.

[0023] Please see Figure 1-4 This utility model provides a technical solution: a waste heat utilization system for a ring-shaped roasting furnace, including a base 1, a water tank 11 installed on one side of the top of the base 1, a spiral pipe 12 installed in the middle of the water tank 11, a filter assembly installed in the middle of the top of the base 1, a drying chamber 8 installed on the other side of the top of the base 1, an exhaust pipe 9 installed in the middle of the drying chamber 8, and four sets of through slots 7 opened on the outside of the exhaust pipe 9. This solves the problem of pollution to the surrounding environment caused by the direct emission of smoke from existing ring-shaped roasting furnaces, and the fact that the smoke carries a large amount of heat when it is emitted, increasing the heat loss and reducing the waste heat utilization performance of the ring-shaped roasting furnace.

[0024] The filter assembly includes a connecting rod 2, a cleaning plate 3, a filter screen 4, an activated carbon filter screen 5, a filter chamber 6, and an electric push rod 10. The filter chamber 6 is installed at the middle of the top of the base 1. The filter screen 4 and the activated carbon filter screen 5 are respectively provided on both sides inside the filter chamber 6. An electric push rod 10 is provided on the top side of the filter chamber 6 near the filter screen 4. The output end of the electric push rod 10 is provided with a connecting rod 2 extending into the filter chamber 6. The bottom of the connecting rod 2 near the filter screen 4 is provided with a cleaning plate 3, and the cleaning plate 3 is in close contact with the filter screen 4. The design of the filter screen 4 and the activated carbon filter screen 5 can achieve the filtration of smoke to improve the quality of the smoke emission. Finally, the design of the electric push rod 10, the connecting rod 2, and the cleaning plate 3 can facilitate the automatic cleaning function of the filter screen 4 to improve the filtration efficiency.

[0025] The top of the spiral pipe 12 and the bottom near the filter chamber 6 are both equipped with connecting pipes. One set of connecting pipes extends to the outside of the water tank 11 and connects to the external exhaust pipe, while the other set of connecting pipes extends to the inside of the filter chamber 6 near the filter screen plate 4. This design of the connecting pipes facilitates the discharge of smoke into the spiral pipe 12 and the discharge of smoke from inside the spiral pipe 12 into the filter chamber 6. The filter chamber 6 near the activated carbon filter screen plate 5 is equipped with an L-shaped connecting pipe, the other end of which connects to the bottom of the exhaust pipe 9, facilitating communication between the filter chamber 6 and the exhaust pipe 9. The bottom of both sides of the drying chamber 8 is equipped with exhaust screen plates, and these exhaust screen plates are integrated with the inner and outer surfaces of the drying chamber 8. The exhaust mesh design facilitates the discharge of smoke. The top of the electric push rod 10 is equipped with a connecting block, and the bottom of the connecting block away from the electric push rod 10 is connected to the top of the connecting rod 2. The connecting block design facilitates the fixed connection between the electric push rod 10 and the connecting rod 2. Support rods are provided at the four corners of the bottom of the drying chamber 8, and the support rods are connected to the top of the base 1. The support rod design facilitates the support and installation of the drying chamber 8. Water pipes are provided on one side of the top of the base 1 and on the bottom of the base 1 away from the filter chamber 6. One set of water pipes is connected to the external water inlet pipe, and the other set of water pipes is connected to the external drain pipe, which facilitates the filling and draining of water inside the water tank 11.

[0026] Working principle: During use, the smoke emitted from the ring roasting furnace can be directly discharged into the interior of the spiral pipe 12. Through the structural design of the spiral pipe 12, the residence time of the smoke inside the base 1 can be effectively extended, thereby enabling the heating of the cold water inside the base 1. By heating and storing the cold water, it is convenient for operators to directly use the hot water later, and there is no need to separately heat the cold water later.

[0027] Furthermore, the smoke inside the spiral pipe 12 can also enter the interior of the filter chamber 6. The filter screen 4 designed inside the filter chamber 6 can filter impurities in the smoke, and then the activated carbon filter screen 5 can filter harmful substances in the smoke. Finally, the filtered smoke can enter the interior of the exhaust pipe 9 and be discharged into the interior of the drying chamber 8 through the channel 7. Then, the residual heat in the smoke can be used to dry the wet carbon stored in the drying chamber 8, thereby improving the efficiency of coal roasting and reducing heat energy consumption.

[0028] Finally, the electric push rod 10 drives the connecting rod 2, which in turn moves the cleaning plate 3 outside the filter screen 4. The movement of the cleaning plate 3 cleans the outside of the filter screen 4, reducing blockages and improving the filtration efficiency of the filter screen 4. This process eliminates the need for manual cleaning by operators.

[0029] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A waste heat utilization system for a ring-shaped roasting furnace, comprising a base (1), characterized in that, A water tank (11) is installed on one side of the top of the base (1). A spiral pipe (12) is installed in the middle of the water tank (11). A filter assembly is provided in the middle of the top of the base (1). A drying chamber (8) is installed on the other side of the top of the base (1). An exhaust pipe (9) is installed in the middle of the drying chamber (8). Four sets of through slots (7) are opened on the outside of the exhaust pipe (9).

2. The waste heat utilization system of the annular roasting furnace as described in claim 1, characterized in that: The filter assembly includes a connecting rod (2), a cleaning plate (3), a filter screen plate (4), an activated carbon filter screen plate (5), a filter chamber (6), and an electric push rod (10). The filter chamber (6) is installed at the middle position of the top of the base (1). The filter screen plate (4) and the activated carbon filter screen plate (5) are respectively provided on both sides inside the filter chamber (6). An electric push rod (10) is provided on the top side of the filter chamber (6) near the filter screen plate (4). The output end of the electric push rod (10) is provided with a connecting rod (2) extending into the filter chamber (6). The bottom of the connecting rod (2) near the filter screen plate (4) is provided with a cleaning plate (3), and the cleaning plate (3) is attached to the filter screen plate (4).

3. The waste heat utilization system of the annular roasting furnace as described in claim 1, characterized in that: The top of the spiral pipe (12) and the bottom of the side near the filter chamber (6) are both provided with connecting pipes. One set of connecting pipes extends to the outside of the water tank (11) and is connected to the external exhaust pipe, while the other set of connecting pipes extends to the inside of the filter chamber (6) near the filter screen (4).

4. The waste heat utilization system of the annular roasting furnace as described in claim 2, characterized in that: The filter chamber (6) is provided with an L-shaped connecting pipe on the side near the activated carbon filter plate (5), and the other end of the L-shaped connecting pipe is connected to the inner bottom of the exhaust pipe (9).

5. The waste heat utilization system of the annular roasting furnace as described in claim 1, characterized in that: The bottom of both sides of the drying chamber (8) is provided with exhaust mesh plates, and the exhaust mesh plates are connected to the inside and outside of the drying chamber (8).

6. The waste heat utilization system of the annular roasting furnace as described in claim 2, characterized in that: The electric push rod (10) has a connecting block at its top, and the bottom of the connecting block is connected to the top of the connecting rod (2) on the side away from the electric push rod (10).

7. The waste heat utilization system of the annular roasting furnace as described in claim 2, characterized in that: The drying chamber (8) has support rods at the four corners of its bottom, and the support rods are connected to the top of the base (1).

8. The waste heat utilization system of the annular roasting furnace as described in claim 2, characterized in that: Water pipes are provided on one side of the top of the base (1) and on the bottom of the base (1) away from the filter chamber (6), and one set of water pipes is connected to the external water inlet pipe, while the other set of water pipes is connected to the external drain pipe.

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