A segmented cooling jacket for cooling

Abstract

The utility model relates to a kind of subsection cooling cooling water jacket, including the first baffle of the inner tube and outer tube, annular tube is provided with first baffle, first flow passage is arranged between baffle and inner tube, second flow passage is arranged between baffle and outer tube pipe, first flow passage and second flow passage are communicated at annular tube end, the second flow passage is divided into low temperature section and low temperature section by second baffle, low temperature section is divided into water inlet flow passage and backwater flow passage by third baffle, and basic protection effect can be achieved by lower water flow.

Description

Technical Field

[0001] This utility model relates to the technical field of rock wool production equipment, specifically to a cooling water jacket for segmented cooling. Background Technology

[0002] The statements herein provide only background information related to this invention and do not necessarily constitute prior art.

[0003] In the production of rock wool, the main energy consumption comes from the high-temperature melting stage. The main process in this stage is as follows: raw materials such as basalt and dolomite are fed into the cupola furnace via conveyor belt. Inside the furnace, from top to bottom, several stages are formed, including large-scale accumulation, small-scale accumulation, molten state, and liquefaction homogenization. The heat comes from coke, which is added simultaneously with other raw materials. To achieve better heat utilization, a ring of tuyeres is placed around the cupola furnace to provide sufficient oxygen for coke combustion. These tuyeres are generally located between the molten state and the liquefaction homogenization stage. Because the oxidation reaction is most concentrated and intense at this location, the temperature is extremely high, generally reaching around 1700 degrees Celsius. This high temperature may cause deformation or even holes in the iron furnace walls and tuyeres, affecting normal production.

[0004] To cope with high temperatures, the current method mainly uses water jackets for heat exchange and cooling. However, the structure of the water jacket is relatively simple. It is a cavity left on the outer wall of the vent, with certain pipes welded inside. The water continuously exchanges heat with circulating water, thus achieving the protection of the vent.

[0005] However, in existing tuyer structures, all tuyer water jackets are connected in series. Water enters from the inlet and passes through various positions in the water jacket sequentially. The water temperature increases as it enters the jacket. The side of the tuyer closer to the furnace wall is inherently cooler, but because the circulating water enters from this point, heat exchange is most significant, and the water temperature rises noticeably, carrying away more heat. The temperature of the water jacket depends on the furnace temperature outside the jacket. The highest temperature is at the very front of the tuyer, where the combustion air meets the coke and begins to burn, releasing a large amount of heat. By the time the circulating water in the water jacket reaches the front of the tuyer, its temperature has already risen significantly, and it no longer provides cooling to the front, thus reducing its protective effect on the tuyer. Utility Model Content

[0006] This utility model provides a segmented cooling water jacket, including a first partition composed of an inner tube and an outer tube. The first partition is disposed inside the annular tube. A first flow channel is disposed between the partition and the inner tube. A second flow channel is disposed between the partition and the outer tube. The first flow channel and the second flow channel are connected at the end of the annular tube. The second flow channel is divided into a low-temperature section and a low-temperature segment by a second partition. The low-temperature segment is divided into an inlet flow channel and a return flow channel by a third partition.

[0007] Further configuration involves sealing the end of the annular tube.

[0008] Further configuration involves fixing the annular pipe inside the vent via an outer pipe.

[0009] A further configuration is provided where a gap is provided between the first partition and the end of the first partition.

[0010] Further, the height of the first flow channel is set to be less than the height of the second flow channel.

[0011] A further configuration is that guide vanes are staggered within the high-temperature section.

[0012] Further configuration involves a gap between the low-temperature section and the second partition.

[0013] Further configuration involves staggered baffles within the return water channel.

[0014] Further configured such that the second partition is perpendicular to the first partition.

[0015] Further configuration: the third partition is parallel to the first partition.

[0016] The beneficial effects of one or more of the above technical solutions:

[0017] The circulation zones of different water channels are determined by the depth of the tuyere, improving the protection of the tuyere area near the furnace center by the water jacket. For example, the tuyere water jacket can be divided into two zones: a low-temperature zone and a high-temperature zone. In this invention, the high-temperature zone has the highest temperature, and to protect the tuyere, it should have a larger flow rate. The low-temperature water jacket does not need to remove too much heat and can achieve basic protection with a lower water flow rate. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute a limitation thereof.

[0019] Figure 1 This is a schematic diagram illustrating the application of this utility model.

[0020] In the picture,

[0021] 1 Inner pipe; 2 Outer pipe; 3 Annular pipe; 4 First baffle; 5 First flow channel; 6 Second flow channel; 7 Second baffle; 8 Low temperature section; 9 High temperature section; 10 Third baffle; 11 Inlet water flow channel; 12 Return water flow channel; 13 Guide plate. Detailed Implementation

[0022] The specific implementation of this embodiment will now be described with reference to the accompanying drawings.

[0023] Please refer to Figure 1 It includes an annular pipe 3 consisting of an inner pipe 1 and an outer pipe 2. A first baffle 4 is provided inside the annular pipe 3. A first flow channel 5 is provided between the baffle and the inner pipe 1. A second flow channel 6 is provided between the baffle and the outer pipe 2. The first flow channel 5 and the second flow channel 6 are connected at the end of the annular pipe 3. The second flow channel 6 is divided into a low temperature section 8 and a high temperature section 9 by a second baffle 7. The low temperature section 8 is divided into an inlet flow channel 11 and a return flow channel 12 by a third baffle 10.

[0024] The end of the annular pipe 3 is sealed. The annular pipe 3 is fixed inside the ventilator via the outer pipe 2, dividing the ventilator's water jacket into two zones: a low-temperature zone and a high-temperature zone. The high-temperature zone has the highest temperature and should have a larger flow rate to protect the ventilator. The low-temperature water jacket does not need to remove excessive heat.

[0025] The first baffle 4 and the end of the annular pipe 3 are separated by a gap, and the gap is set to ensure that the cooling water introduced into the annular pipe 3 flows from below the second baffle 7 to the high-temperature section 9.

[0026] The height of the first flow channel 5 is less than the height of the second flow channel 6. Since the second flow channel 6 needs to be divided into a low-temperature section 8 and a high-temperature section 9, the height of the second flow channel 6 is increased in order to ensure the space for cooling water flow.

[0027] Within the high-temperature section 9, guide plates are staggered. The guide plates are divided into two sets of guide plates, which are installed on the baffle of the return water channel 12 and the outer pipe 2, and the upper and lower sets of guide plates are staggered.

[0028] A gap is provided between the low-temperature section 8 and the second partition 7, and the gap is provided to ensure that the cooling water of the low-temperature section 8 flows from below to above the second partition 7.

[0029] Inside the return water channel 12, guide plates are staggered. The guide plates are divided into two sets of guide plates, which are set on the upper and lower side walls of the return water channel 12, and the upper and lower sets of guide plates are staggered.

[0030] The second partition 7 is perpendicular to the first partition 4, and the third partition 10 is parallel to the first partition 4. The partitions divide the space inside the annular tube 3 into multiple sets of connected flow channels.

[0031] The cooling water flow path is as follows:

[0032] Cooling water is introduced from outside the furnace into the first flow channel 5 and the water inlet flow channel 11. The cooling water flows through the first flow channel 5 to the end of the annular pipe 3 and flows upward into the high temperature section 9. It then flows slowly through the guide plate to the second baffle 7. The cooling water flows through the water inlet flow channel 11 to the second baffle 7 and then flows into the return flow channel 12. Finally, it flows out through the guide plate.

[0033] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A segmented cooling water jacket, characterized in that, It includes a first baffle consisting of an inner tube and an outer tube. The first baffle is installed inside the annular tube. A first flow channel is installed between the baffle and the inner tube. A second flow channel is installed between the baffle and the outer tube. The first flow channel and the second flow channel are connected at the end of the annular tube. The second flow channel is divided into a low-temperature section and a high-temperature section by a second baffle. The low-temperature section is divided into an inlet flow channel and a return flow channel by a third baffle.

2. The segmented cooling water jacket according to claim 1, characterized in that, The end of the ring-shaped tube is closed.

3. The segmented cooling water jacket according to claim 1, characterized in that, The annular pipe is fixed inside the vent via the outer pipe.

4. The segmented cooling water jacket according to claim 1, characterized in that, The first partition is spaced apart from the end of the first partition.

5. The segmented cooling water jacket according to claim 1, characterized in that, The height of the first flow channel is less than the height of the second flow channel.

6. The segmented cooling water jacket according to claim 1, characterized in that, The high-temperature section is equipped with staggered guide vanes.

7. The segmented cooling water jacket according to claim 1, characterized in that, A gap is provided between the low-temperature section and the second partition.

8. The segmented cooling water jacket according to claim 1, characterized in that, Guide vanes are staggered inside the return water channel.

9. The segmented cooling water jacket according to claim 1, characterized in that, The second partition is perpendicular to the first partition.

10. The segmented cooling water jacket according to claim 1, characterized in that, The third partition is parallel to the first partition.

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