Calcium carbide furnace flue cooling device

Abstract

The utility model discloses a calcium carbide furnace flue cooling device which comprises a flue cylinder with an opening in the top end, a plurality of circulation holes are formed in a bottom plate of the flue cylinder, and an upper cooling annular cavity, a main cooling annular cavity and a lower cooling annular cavity are sequentially arranged in the flue cylinder from top to bottom. A plurality of cooling fins are installed on the inner wall of the flue cylinder, cooling cavities are formed in the cooling fins, the tops and the bottoms of the cooling cavities communicate with the upper cooling ring cavity and the lower cooling ring cavity correspondingly, and a jacking column assembly is coaxially connected into the flue cylinder in a threaded mode. The flue has the advantages that the cooling fins with the cooling function are designed in the flue cylinder, the cooling fins divide the inner cavity of the flue into a plurality of fan-shaped cooling spaces, the cooling area of flue gas is increased, the cooling effect of the flue gas is improved, and therefore the service life of the flue is effectively prolonged, and the flue is worthy of being used and popularized.

Description

Technical Field

[0001] This utility model relates to the field of calcium carbide furnace flue cooling technology, and in particular to a calcium carbide furnace flue cooling device. Background technology:

[0002] During the calcium carbide smelting process, the temperature inside the calcium carbide furnace can reach over 2000℃. The high-temperature flue gas generated during the smelting process is discharged through multiple sections of raw gas flue. Among them, the first section of the raw gas flue is close to the furnace cover and has the highest temperature. Therefore, the service life of the first section of the raw gas flue is relatively short. In the existing technology, the first section of the raw gas flue, like other flues, is cooled by an outer water-cooling jacket structure, which is difficult to meet the cooling requirements and has a poor cooling effect. After long-term use, the flue is prone to deformation. Therefore, this utility model provides a calcium carbide furnace flue cooling device. Utility Model Content

[0003] The purpose of this utility model is to provide a cooling device for the flue of a calcium carbide furnace to solve the technical problem of poor cooling effect of the flue of a calcium carbide furnace in the prior art, which leads to a short service life of the flue.

[0004] The utility model relates to a cooling device for a calcium carbide furnace flue, comprising a flue with an open top, several flow holes on the bottom plate of the flue, an upper cooling ring cavity, a main cooling ring cavity, and a lower cooling ring cavity arranged sequentially from top to bottom inside the flue, several cooling fins installed on the inner wall of the flue, and cooling chambers arranged within the cooling fins, the top and bottom of the cooling chambers communicating with the upper cooling ring cavity and the lower cooling ring cavity respectively, a tightening column assembly coaxially screwed into the inner wall of the flue for fixing the cooling fins, and a first water inlet pipe, a first water outlet pipe, a second water inlet pipe, and a second water outlet pipe arranged on the outer wall of the flue.

[0005] Furthermore, a positioning groove is vertically formed on the inner wall of the flue, one end of the cooling fin is inserted into the positioning groove, and the other end of the cooling fin is in contact with the clamping column assembly.

[0006] Furthermore, a sealing ring is installed on the contact surface between the cooling fins and the positioning groove.

[0007] Furthermore, the clamping column assembly includes a limiting platform end, a smooth column section, a conical column section, and a stud section connected sequentially from top to bottom. The lower edge of the limiting platform end contacts the top end of the cooling fins, the stud section is screwed to the bottom plate of the flue, and the smooth column section contacts the cooling fins.

[0008] Furthermore, a spring groove is provided at the end of the cooling fin, and a clamping spring is connected in the spring groove. The other end of the clamping spring is in contact with the surface of the smooth column segment.

[0009] Furthermore, the first water inlet pipe and the first water outlet pipe are connected to the main cooling ring cavity, and the second water inlet pipe and the second water outlet pipe are respectively connected to the lower cooling ring cavity and the upper cooling ring cavity.

[0010] The beneficial effects of this utility model are as follows: This utility model designs several cooling fins with cooling function inside the flue. The cooling fins divide the inner cavity of the flue into several fan-shaped cooling spaces, increasing the cooling area of ​​the flue gas and improving the cooling effect of the flue gas, thereby effectively increasing the service life of the flue. It is worth promoting and using. Attached Figure Description

[0011] Figure 1 This is a perspective view of the present utility model;

[0012] Figure 2 Other perspective views of this utility model;

[0013] Figure 3 This is a cross-sectional view of the present invention;

[0014] Figure 4 A three-dimensional view of the internal structure of the cooling fins;

[0015] In the figure, the components are: 1. flue duct; 2. main cooling ring cavity; 3. upper cooling ring cavity; 4. lower cooling ring cavity; 5. cooling fins; 6. cooling cavity; 7. limiting platform end; 8. smooth column section; 9. conical column section; 10. stud section; 11. positioning groove; 12. clamping spring; 13. first water inlet pipe; 14. first water outlet pipe; 15. second water inlet pipe; 16. second water outlet pipe; and 17. flow hole. Detailed Implementation

[0016] like Figures 1 to 3 As shown, a cooling device for a calcium carbide furnace flue includes a flue duct 1 with an open top. Several flow holes 17 are formed on the bottom plate of the flue duct 1. An upper cooling ring cavity 3, a main cooling ring cavity 2, and a lower cooling ring cavity 4 are arranged sequentially from top to bottom inside the flue duct 1. Several cooling fins 5 are installed on the inner wall of the flue duct 1. Cooling chambers 6 are formed within the cooling fins 5. The top and bottom of the cooling chambers 6 are connected to the upper cooling ring cavity 3 and the lower cooling ring cavity 4, respectively. A clamping column assembly is coaxially screwed into the inner wall of the flue duct 1. The clamping column assembly is used to fix the cooling fins 5. A first water inlet pipe 13, a first water outlet pipe 14, a second water inlet pipe 15, and a second water outlet pipe 16 are provided on the outer wall of the flue duct 1. The first water inlet pipe 13 and the first water outlet pipe 14 are connected to the main cooling ring cavity 2. The second water inlet pipe 15 and the second water outlet pipe 16 are respectively connected to the lower cooling ring cavity 4 and the upper cooling ring cavity 3.

[0017] like Figure 1 As shown, a positioning groove 11 is vertically formed on the inner wall of the flue duct 1. One end of the cooling fin 5 is inserted into the positioning groove 11, and the other end of the cooling fin 5 is in contact with the top clamping column assembly. A sealing ring is installed on the contact surface between the cooling fin 5 and the positioning groove 11.

[0018] like Figure 3 and Figure 4 As shown, the clamping column assembly includes a limiting platform end 7, a smooth column section 8, a conical column section 9, and a stud section 10 connected sequentially from top to bottom. The lower edge of the limiting platform end 7 contacts the top end of the cooling fin 5. The stud section 10 is screwed to the bottom plate of the flue duct 1. The smooth column section 8 contacts the cooling fin 5. A spring groove is provided at the end of the cooling fin 5. A clamping spring 12 is connected in the spring groove. The other end of the clamping spring 12 contacts the surface of the smooth column section 8.

[0019] During the use of this utility model, such as Figures 1 to 4 As shown, flue gas enters the flue duct 1 through the flow hole 17 and comes into contact with the inner wall of the flue duct 1 and the surface of the cooling fins 5 for cooling. During this process, one type of cooling water flows sequentially through an inlet pipe 13, the main cooling ring cavity 2, and the first outlet pipe 14, while another type of cooling water flows sequentially through a second inlet pipe 15, the cooling cavity 6, and the second outlet pipe 16, thereby achieving multiple cooling of the flue gas, increasing the cooling contact area, and achieving rapid cooling of the flue gas.

[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A calcium carbide furnace flue cooling device, characterized by: It includes a flue (1) with an open top, and several flow holes (17) are provided on the bottom plate of the flue (1). The upper cooling ring cavity (3), the main cooling ring cavity (2) and the lower cooling ring cavity (4) are arranged sequentially from top to bottom in the flue (1). Several cooling fins (5) are installed on the inner wall of the flue (1). A cooling cavity (6) is provided in the cooling fins (5). The top and bottom of the cooling cavity (6) are respectively connected to the upper cooling ring cavity (3) and the lower cooling ring cavity (4). A tightening column assembly is coaxially screwed into the inside of the flue (1). The tightening column assembly is used to fix the cooling fins (5). A first water inlet pipe (13), a first water outlet pipe (14), a second water inlet pipe (15) and a second water outlet pipe (16) are provided on the outer wall of the flue (1).

2. The calcium carbide furnace flue cooling device according to claim 1, characterized in that: A positioning groove (11) is vertically provided on the inner wall of the flue (1). One end of the cooling fin (5) is inserted into the positioning groove (11), and the other end of the cooling fin (5) is in contact with the top clamping column assembly.

3. The calcium carbide furnace flue cooling device according to claim 2, characterized in that: A sealing ring is installed on the contact surface between the cooling fins (5) and the positioning groove (11).

4. The calcium carbide furnace flue cooling device of claim 1, wherein: The clamping column assembly includes a limiting platform end (7), a smooth column section (8), a conical column section (9), and a stud section (10) connected sequentially from top to bottom. The lower edge of the limiting platform end (7) is in contact with the top end of the cooling fin (5). The stud section (10) is screwed to the bottom plate of the flue (1). The smooth column section (8) is in contact with the cooling fin (5).

5. The calcium carbide furnace flue cooling device according to claim 4, characterized in that: A spring groove is provided at the end of the cooling fin (5), and a clamping spring (12) is connected in the spring groove. The other end of the clamping spring (12) is in contact with the surface of the smooth column section (8).

6. A calcium carbide furnace flue cooling device according to any one of claims 1 to 5, characterized in that: The first water inlet pipe (13) and the first water outlet pipe (14) are connected to the main cooling ring cavity (2), and the second water inlet pipe (15) and the second water outlet pipe (16) are connected to the lower cooling ring cavity (4) and the upper cooling ring cavity (3), respectively.

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