Pressing device for tuyere large cover of blast furnace

Abstract

The utility model belongs to the technical field of metallurgy, and discloses a blast furnace tuyere large cover pressing device which comprises a pressing clamping plate, the pressing clamping plate is of a rectangular frame structure and comprises two first clamping plates arranged in parallel, a second clamping plate and a third clamping plate are perpendicularly connected between the two ends of the two first clamping plates respectively, and a threaded sleeve is arranged in the middle of the third clamping plate. The end, located on the inner side of the pressing clamping plate, of the jacking rod is fixedly connected with a baffle, and the other end of the jacking rod is connected with a handle. According to the utility model, the blast furnace tuyere large cover can be quickly pressed, the tapered iron can be conveniently replaced, and the air leakage phenomenon at the tuyere large cover can be reduced, so that the slow-wind damping-down phenomenon of the blast furnace caused by the air leakage of the tuyere large cover is effectively avoided, and the hidden danger of equipment and the safety accident of personnel are reduced; when it is found that the tuyere large cover leaks air due to the fact that the inclined iron loses efficacy, the inclined iron can be replaced under the condition that slow air damping down is not conducted, and it is avoided that stable operation of a blast furnace is affected, and larger economic losses are caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of metallurgy, and in particular relates to a blast furnace tuyere cover pressing device. Background Art

[0002] As the service life of blast furnace equipment increases, the downtime of blast furnaces has been extended from the original 2 months to 4 months or even 6 months, causing the inclined iron groove to be elongated due to long-term high temperature, resulting in loose tightening of the tuyere cover, causing air leakage. However, due to the high wind temperature, it cannot be repaired immediately, causing damage to the equipment. In order to reduce the occurrence of equipment accidents, a blast furnace tuyere cover clamping device has been developed, which can quickly clamp the blast furnace tuyere cover and facilitate the replacement of the inclined iron. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a blast furnace tuyere cover pressing device to solve the problems pointed out in the above background technology.

[0004] In order to achieve the above utility model purpose, the technical solution adopted is as follows:

[0005] A blast furnace tuyere cover clamping device includes a clamping plate, which is a rectangular frame structure, including two parallel first clamps, with a second clamp and a third clamp vertically connected between the two ends of the first clamps, a threaded sleeve is provided in the middle of the third clamp, a clamping rod is threadedly connected to the inner thread of the threaded sleeve, one end of the clamping rod located on the inner side of the clamping plate is fixedly connected to a baffle, and the other end is connected to a handle.

[0006] As a further improvement of the utility model, the tightening rod is a threaded rod, and the position of the baffle can be adjusted by cooperating with the tightening rod and the threaded sleeve, thereby tightening the blast furnace tuyere cover.

[0007] As a further improvement of the present invention, the second clamping plate is a telescopic plate with adjustable length, and the third clamping plate is symmetrically provided with adjustment grooves at positions on both sides of the threaded sleeve, and the adjustment grooves are opened along the length direction of the third clamping plate. Fastening bolts are fixed on one end of the two first clamping plates connected to the third clamping plates, and the fastening bolts are threadedly connected with fastening nuts after passing through the adjustment grooves on the corresponding sides. The second clamping plate is configured as a telescopic plate with adjustable length, and the setting of the adjustment grooves on the third clamping plate facilitates the adjustment of the overall width of the clamping clamping plate to meet on-site requirements.

[0008] As a further improvement of the present invention, the second clamping plate includes a first adjustment plate, a second adjustment plate and an adjusting bolt. The second adjustment plate is slidably arranged in the first adjustment plate. A plurality of first adjustment circular holes are opened on the first adjustment plate along its length direction. A plurality of second adjustment circular holes are opened on the second adjustment plate along its length direction. The adjusting bolt passes through the first adjustment circular hole and the second adjustment circular hole in sequence and is threadedly connected with an adjusting nut.

[0009] As a further improvement of the utility model, the handle is a cross bar perpendicular to the jacking rod.

[0010] The beneficial effects of the utility model are as follows: the utility model can quickly tighten the tuyere cover of the blast furnace, facilitate the replacement of the inclined iron, and can reduce air leakage at the tuyere cover, thereby effectively avoiding the phenomenon of slow wind and wind stop of the blast furnace caused by air leakage of the tuyere cover, reducing equipment hidden dangers and personnel safety accidents; when it is found that the tuyere cover is leaking air due to the failure of the inclined iron, the inclined iron can be replaced without slow wind and wind stop, avoiding affecting the stable operation of the blast furnace and causing greater economic losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figure 1 This is a schematic diagram of the structure of Example 1 of the utility model;

[0013] Figure 2 This is a schematic diagram of the structure in Example 2 of the utility model.

[0014] In the figure: 1. Clamping plate, 2. First clamping plate, 3. Second clamping plate, 4. Third clamping plate, 5. Threaded sleeve, 6. Clamping rod, 7. Baffle, 8. Handle, 9. Adjusting groove, 10. Fastening bolt, 11. Fastening nut, 12. First adjusting plate, 13. Second adjusting plate, 14. Adjusting bolt, 15. First adjusting circular hole, 16. Second adjusting circular hole, 17. Adjusting nut. DETAILED DESCRIPTION

[0015] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0016] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0017] Example 1

[0018] like Figure 1 As shown, a clamping device for a large cover of a blast furnace tuyere includes a clamping card 1, and the clamping card 1 is a rectangular frame structure, including two parallel first clamps 2, and a second clamp 3 and a third clamp 4 are vertically connected between the two ends of the two first clamps 2, respectively, and a threaded sleeve 5 is provided in the middle of the third clamp 4, and a clamping rod 6 is connected to the inner thread of the threaded sleeve 5, and one end of the clamping rod 6 located on the inner side of the clamping card 1 is fixedly connected to a baffle 7, and the other end is connected to a handle 8.

[0019] The jacking rod 6 is a threaded rod, and the position of the baffle 7 can be adjusted by cooperating with the jacking rod 6 and the threaded sleeve 5, so as to achieve the compression of the blast furnace tuyere cover.

[0020] Example 2

[0021] Based on the structure of Example 1, in Example 2, Figure 2 As shown, the second clamping plate 3 is a telescopic plate with adjustable length, and the third clamping plate 4 is symmetrically provided with adjustment grooves 9 at positions on both sides of the threaded sleeve 5, and the adjustment grooves 9 are opened along the length direction of the third clamping plate 4, and the two first clamping plates 2 and the third clamping plates 4 are connected at one end with fastening bolts 10 fixed thereon, and the fastening bolts 10 are threadedly connected with fastening nuts 11 after passing through the adjustment grooves 9 on the corresponding sides. The second clamping plate 3 is configured as a telescopic plate with adjustable length, and the setting of the adjustment grooves 9 on the third clamping plate 4 facilitates the adjustment of the overall width of the clamping clamp 1 to meet on-site requirements.

[0022] The second clamping plate 3 includes a first adjustment plate 12, a second adjustment plate 13 and an adjustment bolt 14. The second adjustment plate 13 is slidably arranged in the first adjustment plate 12. The first adjustment plate 12 is provided with a plurality of first adjustment circular holes 15 along its length direction. The second adjustment plate 13 is provided with a plurality of second adjustment circular holes 16 along its length direction. The adjustment bolt 14 passes through the first adjustment circular hole 15 and the second adjustment circular hole 16 in sequence and is threadedly connected with an adjustment nut 17.

[0023] The handle 8 is a cross bar perpendicular to the jacking rod 6 .

[0024] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. For those skilled in the art, the utility model may have various modifications and variations. Any modification, equivalent replacement, improvement, component splitting or combination, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A blast furnace tuyere cover pressing device, characterized in that: It includes a clamping card plate, which is a rectangular frame structure, including two first clamp plates arranged in parallel, and a second clamp plate and a third clamp plate are vertically connected between the two ends of the two first clamp plates, a threaded sleeve is arranged in the middle of the third clamp plate, and a clamping rod is connected to the inner thread of the threaded sleeve, one end of the clamping rod is located on the inner side of the clamping card plate and is fixedly connected to a baffle, and the other end is connected to a handle.

2. A blast furnace tuyere cover pressing device according to claim 1, characterized in that: The tightening rod is a threaded rod.

3. A blast furnace tuyere cover pressing device according to claim 1, characterized in that: The second clamping plate is a telescopic plate with adjustable length. The third clamping plate is symmetrically provided with adjustment grooves at positions on both sides of the threaded sleeve, and the adjustment grooves are opened along the length direction of the third clamping plate. Fastening bolts are fixed on one end where the two first clamping plates are connected to the third clamping plates. The fastening bolts pass through the adjustment grooves on the corresponding sides and are threadedly connected with fastening nuts.

4. A blast furnace tuyere cover pressing device according to claim 3, characterized in that: The second clamping plate includes a first adjustment plate, a second adjustment plate and an adjustment bolt. The second adjustment plate is slidably arranged in the first adjustment plate. The first adjustment plate is provided with a plurality of first adjustment circular holes along its length direction. The second adjustment plate is provided with a plurality of second adjustment circular holes along its length direction. The adjustment bolt passes through the first adjustment circular hole and the second adjustment circular hole in sequence and is threadedly connected with an adjustment nut.

5. The blast furnace tuyere cover pressing device according to claim 1, characterized in that: The handle is a cross bar perpendicular to the jacking rod.

Images