Blast furnace slag flushing water waste heat recovery equipment

Abstract

This utility model discloses a waste heat recovery device for blast furnace slag flushing water, including a heat exchange tank body. The heat exchange tank body contains heat exchange tubes and a water conveying mechanism. The water conveying mechanism includes a spiral water conveying pipe. A filter cylinder is fixedly connected to the right end of the spiral water conveying pipe. A filter screen is installed inside the filter cylinder. A threaded connecting ring is provided on the upper surface of the filter cylinder. A sealing cap is threadedly connected to the outer surface of the threaded connecting ring. A fixing pipe is fixedly connected to the top of the sealing cap. A first connecting ring is fixedly connected to the top of the fixing pipe. A second connecting ring is fixedly connected to the left end of the spiral water conveying pipe of the filter cylinder. This device utilizes the spiral design of the spiral water conveying pipe to increase heat exchange efficiency and improve waste heat recovery. Through the cooperation of the filter screen and the filter cylinder, the blast furnace slag flushing water can be filtered, preventing blockage of the spiral water conveying pipe and avoiding affecting the efficiency of waste heat recovery from the blast furnace slag flushing water.

Description

Technical Field

[0001] This utility model relates to the field of blast furnace waste heat recovery, and in particular to a blast furnace slag flushing water waste heat recovery device. Background Technology

[0002] Blast furnace slag flushing water is industrial wastewater generated during the blast furnace smelting process in the iron and steel industry. It is mainly used to cool the molten slag discharged from the blast furnace. The discharge temperature is usually 50~80℃. It contains a large amount of waste heat and contains suspended solids and heavy metal ions, which can easily lead to scaling and corrosion of equipment. Due to the large flow rate of slag flushing water in iron and steel enterprises, the waste heat resources are continuous and recyclable.

[0003] When recovering waste heat from blast furnace slag flushing water, a heat pump is needed to raise the heat to a higher temperature to meet the heat utilization requirements. However, current heat pumps are difficult to filter and pre-treat the slag water during waste heat recovery. Suspended solids in the slag water, such as slag particles and rust, can easily clog the heat pump equipment, resulting in low heat exchange efficiency and affecting the efficiency of blast furnace slag flushing water waste heat recovery. To address these issues, we propose a blast furnace slag flushing water waste heat recovery device. Utility Model Content

[0004] The purpose of this invention is to provide a waste heat recovery device for blast furnace slag flushing water 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 waste heat recovery device for blast furnace slag flushing water includes a heat exchange tank body. The heat exchange tank body has heat exchange tubes inside and a water conveying mechanism inside. The water conveying mechanism includes a spiral water conveying pipe. A filter cylinder is fixedly connected to the right end of the spiral water conveying pipe. A filter screen is provided inside the filter cylinder. A threaded connecting ring is provided on the upper surface of the filter cylinder. A sealing cap is threadedly connected to the outer surface of the threaded connecting ring. A fixing pipe is fixedly connected to the top end of the sealing cap. A first connecting ring is fixedly connected to the top end of the fixing pipe. A second connecting ring is fixedly connected to the left end of the spiral water conveying pipe of the filter cylinder.

[0007] In a further embodiment, a first connecting pipe is fixedly connected to the upper surface of the heat exchange tank body, and a heat detection meter is provided at the top end of the first connecting pipe.

[0008] In a further embodiment, the left and right ends of the heat exchange tank body are fixedly connected to second connecting pipes, and connecting flanges are installed on the sides of the two second connecting pipes that are far apart from each other.

[0009] In a further embodiment, a support base is fixedly connected to the bottom surface of the heat exchange tank body, and a warning sign is provided on the front of the support base.

[0010] In a further embodiment, a controller is mounted on the front of the support base, and a display screen is provided on the front of the controller.

[0011] In a further embodiment, the bottom surface of the support base is fixedly connected to symmetrical support legs, the bottom surfaces of the two support legs are fixedly connected to mounting bases, and the upper surfaces of the two mounting bases are provided with symmetrical mounting holes.

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

[0013] This device, through the cooperation of the first connecting pipe and the heat detection meter, can monitor the temperature inside the heat exchange tank in real time. The cooperation of the second connecting pipe and the connecting flange facilitates the connection of the heat exchange tubes. The spiral water conveying pipe can discharge blast furnace slag flushing water. The spiral design of the spiral water conveying pipe can increase the heat exchange efficiency and improve the waste heat recovery effect. The cooperation of the filter screen and the filter cartridge can filter the blast furnace slag flushing water, preventing the spiral water conveying pipe from becoming blocked and avoiding affecting the efficiency of the waste heat of the blast furnace slag flushing water. The cooperation of the threaded connecting ring and the sealing cap facilitates the disassembly of the fixed pipe, further facilitating the cleaning and replacement of the filter screen. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of a waste heat recovery device for blast furnace slag flushing water.

[0015] Figure 2 This is a front sectional view of the main body of the heat exchange tank in the blast furnace slag flushing water waste heat recovery equipment.

[0016] Figure 3 This is a top view of the filter cartridge in the blast furnace slag flushing water waste heat recovery equipment.

[0017] Figure 4 Waste heat recovery equipment for blast furnace slag flushing water Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0018] In the diagram: 1. Heat exchange tank body; 2. Water conveying mechanism; 201. Spiral water conveying pipe; 202. Filter cartridge; 203. Filter screen; 204. Threaded connecting ring; 205. Sealing screw cap; 206. Fixed pipe; 207. First connecting ring; 3. Support base; 4. Second connecting pipe; 5. Connecting flange; 6. First connecting pipe; 7. Heat detection meter; 8. Controller; 9. Display screen; 10. Support leg; 11. Mounting base; 12. Mounting hole; 13. Heat exchange tube; 14. Warning sign; 15. Second connecting ring. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] 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.

[0022] Please see Figure 1-4In this utility model, a waste heat recovery device for blast furnace slag flushing water includes a heat exchange tank body 1. The heat exchange tank body 1 has a heat exchange tube 13 inside and a water conveying mechanism 2 inside. The water conveying mechanism 2 includes a spiral water conveying pipe 201. A filter cylinder 202 is fixedly connected to the right end of the spiral water conveying pipe 201. A filter screen 203 is provided inside the filter cylinder 202. A threaded connecting ring 204 is provided on the upper surface of the filter cylinder 202. A sealing cap 205 is threadedly connected to the outer surface of the threaded connecting ring 204. A fixing pipe 206 is fixedly connected to the top end of the sealing cap 205. A first connecting ring 2 is fixedly connected to the top end of the fixing pipe 206. 07. The left end of the spiral water conveying pipe 201 of the filter cartridge 202 is fixedly connected to the second connecting ring 15. The blast furnace slag flushing water can be discharged through the spiral water conveying pipe 201. The spiral design of the spiral water conveying pipe 201 can increase the heat exchange efficiency and improve the waste heat recovery effect. Through the cooperation of the filter screen 203 and the filter cartridge 202, the blast furnace slag flushing water can be filtered to avoid the spiral water conveying pipe 201 from being blocked and to avoid affecting the efficiency of the waste heat of the blast furnace slag flushing water. The cooperation of the threaded connecting ring 204 and the sealing screw cap 205 makes it easy to disassemble the fixed pipe 206, and further facilitates the cleaning and replacement of the filter screen 203.

[0023] A first connecting pipe 6 is fixedly connected to the upper surface of the heat exchange tank body 1. A heat detection gauge 7 is provided at the top of the first connecting pipe 6. Second connecting pipes 4 are fixedly connected to both the left and right ends of the heat exchange tank body 1. Connecting flanges 5 are installed on the sides of the two second connecting pipes 4 that are far apart from each other. A support base 3 is fixedly connected to the bottom surface of the heat exchange tank body 1. A warning sign 14 is provided on the front of the support base 3. Through the cooperation of the first connecting pipe 6 and the heat detection gauge 7, the temperature inside the heat exchange tank body 1 can be monitored in real time. The cooperation of the second connecting pipes 4 and the connecting flanges 5 facilitates the connection of the heat exchange tube 13. The warning sign 14 can warn people.

[0024] A controller 8 is mounted on the front of the support base 3, and a display screen 9 is provided on the front of the controller 8. Symmetrical support legs 10 are fixedly connected to the bottom surface of the support base 3. Mounting seats 11 are fixedly connected to the bottom surface of each of the two support legs 10. Symmetrical mounting holes 12 are provided on the upper surface of each of the two mounting seats 11. With the cooperation of the controller 8 and the display screen 9, it is convenient for the staff to control the device. With the cooperation of the support legs 10, mounting seats 11 and mounting holes 12, it is convenient to install and position the device.

[0025] The working principle of this utility model is as follows:

[0026] In use, first connect the device to the corresponding power supply. Then, use the support leg 10, mounting base 11, and mounting hole 12 to install and position the device. Then, use the controller 8 and display screen 9 to facilitate the operation of the device. Next, use the first connecting pipe 6 and heat detection meter 7 to monitor the temperature inside the heat exchange tank body 1 in real time. Use the second connecting pipe 4 and connecting flange 5 to facilitate the connection of heat exchange tube 13. Then, use the spiral water conveying pipe 201 to discharge blast furnace slag flushing water. The spiral design of the spiral water conveying pipe 201 can increase heat exchange efficiency and improve the waste heat recovery effect. Use the filter screen 203 and filter cartridge 202 to filter the blast furnace slag flushing water and prevent the spiral water conveying pipe 201 from clogging. Use the threaded connecting ring 204 and sealing cap 205 to facilitate the disassembly of the fixed pipe 206.

[0027] 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.

[0028] 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 blast furnace slag flushing water waste heat recovery device, characterized by: The device includes a heat exchange tank body (1), inside which a heat exchange tube (13) is provided. Inside the heat exchange tank body (1) a water conveying mechanism (2) is provided. The water conveying mechanism (2) includes a spiral water conveying pipe (201). The right end of the spiral water conveying pipe (201) is fixedly connected to a filter cylinder (202). Inside the filter cylinder (202) a filter screen (203) is provided. The upper surface of the filter cylinder (202) is provided with a threaded connecting ring (204). The outer surface of the threaded connecting ring (204) is threadedly connected to a sealing cap (205). The top end of the sealing cap (205) is fixedly connected to a fixing pipe (206). The top end of the fixing pipe (206) is fixedly connected to a first connecting ring (207). The left end of the spiral water conveying pipe (201) of the filter cylinder (202) is fixedly connected to a second connecting ring (15).

2. The waste heat recovery equipment for blast furnace slag flushing water according to claim 1, characterized in that: The upper surface of the heat exchange tank body (1) is fixedly connected to a first connecting pipe (6), and a heat detection meter (7) is provided at the top of the first connecting pipe (6).

3. The waste heat recovery equipment for blast furnace slag flushing water according to claim 1, characterized in that: The heat exchange tank body (1) is fixedly connected to the left and right ends of the second connecting pipe (4), and the two second connecting pipes (4) are respectively installed with connecting flanges (5) on the side away from each other.

4. The blast furnace slag flushing water waste heat recovery equipment according to claim 1, characterized in that: The bottom surface of the heat exchange tank body (1) is fixedly connected to a support base (3), and a warning sign (14) is provided on the front of the support base (3).

5. The waste heat recovery equipment for blast furnace slag flushing water according to claim 4, characterized in that: The support base (3) is equipped with a controller (8) on its front side, and the controller (8) is provided with a display screen (9) on its front side.

6. The waste heat recovery equipment for blast furnace slag flushing water according to claim 4, characterized in that: The bottom surface of the support base (3) is fixedly connected to symmetrical support legs (10), and the bottom surfaces of the two support legs (10) are fixedly connected to mounting bases (11). The upper surfaces of the two mounting bases (11) are provided with symmetrical mounting holes (12).

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