CN217628474U

CN217628474U - Converter unloader

Info

Publication number: CN217628474U
Application number: CN202220948845.3U
Authority: CN
Inventors: 孙宝权; 吴旭峰; 杜春辉; 陶艳丽
Original assignee: Lingyuan Iron & Steel Group Co ltd; Lingyuan Iron and Steel Co Ltd
Current assignee: Lingyuan Iron and Steel Co Ltd
Priority date: 2022-04-23
Filing date: 2022-04-23
Publication date: 2022-10-21
Anticipated expiration: 2032-04-23

Abstract

A converter blanking device is provided with a plurality of groups of water inlet and outlet combined pipes, and cylindrical blanking ports are formed on the inner sides of the groups of water inlet and outlet combined pipes; each group of water inlet and outlet combined pipes comprises a water inlet pipe and a water outlet pipe, and the bottom of the water inlet pipe is communicated with the bottom of the water outlet pipe; the sides of the water inlet pipe and the water outlet pipe, which are close to the blanking through hole, are provided with anti-abrasion blocks; the two ends of the wear-resistant block are provided with unwelded areas, and the middle of the wear-resistant block is provided with a welding area. A sealed box body is arranged on the outer side of the water inlet and outlet combined pipe, and a gap between the sealed box body and the water inlet and outlet combined pipe is filled with a water-based environment-friendly gunning mix; the gap between the water inlet pipe and the water outlet pipe is filled with water-based environment-friendly gunning mix. The utility model adopts the installation mode of removing the alternating stress, seals the box body and fills the refractory material, avoids the overflow of coal gas and smoke dust, and prolongs the service life to 18 months; the slag adhesion between the feeding port and the vaporization cooling flue is reduced; the equipment degradation degree is reduced, a large amount of manpower, financial resources and material resources are saved, and the safe and stable operation of the equipment is ensured.

Description

Converter unloader

Technical Field

The utility model relates to a unloader especially relates to a converter unloader.

Background

The converter feed opening is used as an important process part for converter smelting, about 180 tons of materials are fed every day, wherein the materials comprise limestone, magnesium balls, quick lime and the like, the materials contact with the flue gas of the converter, the design life of the initial feed opening is 3 months, the wear resistance, hardness, thermoplasticity, high temperature resistance, installation mode and the like of the feed opening are not comprehensively considered by the initial design, and the feed opening of the converter can leak in different degrees within 1-3 months of operation.

The former feed opening wear resistance is relatively poor, the converter unloading produces the wearing and tearing of great degree to the feed opening, hardness, yield strength, high temperature resistance is relatively poor in addition, the cooling method of former feed opening can not effectually take away the partial heat that the smelting produced, can not be to cooling water rational distribution, because long-time burning loss, lead to feed opening bottom cooling wall to appear the decarbonization, and then lead to the cooling tube to appear leaking, former design feed opening adopts welded mounting means in addition, can not effectually eliminate flue and the feed opening alternating thermal stress under the different circumstances of being heated, in case leak appears in the feed opening, will cause the injury to operating personnel, there is great unsafe factor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a converter unloader solves converter unloading process and is not wear-resisting, the cooling effect is poor, and can not eliminate alternating thermal stress, the problem revealed easily.

The utility model provides an above-mentioned technical problem's technical scheme as follows: a converter blanking device comprises a plurality of groups of water inlet and outlet combined pipes, wherein cylindrical blanking through holes are formed in the inner sides of the groups of water inlet and outlet combined pipes;

each group of water inlet and outlet combined pipes comprises a water inlet pipe and a water outlet pipe, and the bottom of the water inlet pipe is communicated with the bottom of the water outlet pipe;

the side, close to the blanking through hole, of each of the water inlet pipe and the water outlet pipe is provided with an anti-abrasion block; the two ends of the anti-abrasion block are provided with unwelded areas, and the middle of the anti-abrasion block is provided with a welding area.

As a preferred scheme of the converter blanking device, each group of the water inlet and outlet combined pipes is provided with a water inlet which is communicated with the water inlet pipe;

the water outlet end of the water outlet pipe is converged to the water outlet.

As the preferable scheme of the converter blanking device, the gathering positions of the water outlet pipes of the plurality of groups of water inlet and outlet combined pipes are distributed at the inlet of the blanking port in a circular ring shape.

As the preferable scheme of the blanking device of the converter, the anti-abrasion blocks are distributed along the axial pipe length direction of the water inlet pipe or the water outlet pipe.

As a preferable scheme of the converter blanking device, the outlet of the blanking port and the vaporization cooling flue of the converter are fixed by a bolt.

As a preferable scheme of the converter blanking device, a sealing box body is arranged on the outer side of the water inlet and outlet combined pipe, and a gap between the sealing box body and the water inlet and outlet combined pipe is filled with a water-based environment-friendly gunning mix;

and a gap between the water inlet pipe and the water outlet pipe is filled with water-based environment-friendly burning and supplementing material.

The utility model is provided with a plurality of groups of water inlet and outlet combined pipes, and the inner sides of the groups of water inlet and outlet combined pipes are provided with cylindrical blanking ports; each group of water inlet and outlet combined pipes comprises a water inlet pipe and a water outlet pipe, and the bottom of the water inlet pipe is communicated with the bottom of the water outlet pipe; the sides of the water inlet pipe and the water outlet pipe, which are close to the blanking through hole, are provided with anti-abrasion blocks; the two ends of the wear-resistant block are provided with unwelded areas, and the middle of the wear-resistant block is provided with a welding area. The utility model adopts the installation mode of removing the alternating stress, seals the box body and fills the refractory material, avoids the overflow of coal gas and smoke dust, and prolongs the service life to 18 months; the slag adhesion between the feeding port and the vaporization cooling flue is reduced; the equipment deterioration degree is reduced, a large amount of manpower, financial resources and material resources are saved, and the safe and stable operation of the equipment is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.

Fig. 1 is a schematic view of an arrangement structure of wear-resistant blocks of a converter blanking device provided in an embodiment of the present invention;

FIG. 2 is a schematic view of a structure of a water inlet and outlet combined pipe of a converter blanking device provided in an embodiment of the present invention;

fig. 3 is a schematic structural view of a sealed box body of a converter blanking device provided in the embodiment of the present invention.

In the figure, 1, a water inlet pipe; 2. a water outlet pipe; 3. a discharging port; 4. an anti-abrasion block; 5. an unwelded area; 6. a welding zone; 7. a water inlet; 8. a water outlet; 9. sealing the box body; 10. water-based environment-friendly burning and supplementing material.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a converter blanking device, which includes a plurality of groups of water inlet and outlet combined pipes, wherein a cylindrical blanking port 3 is formed inside the plurality of groups of water inlet and outlet combined pipes;

each group of water inlet and outlet combined pipes comprises a water inlet pipe 1 and a water outlet pipe 2, and the bottom of the water inlet pipe 1 is communicated with the bottom of the water outlet pipe 2;

the anti-abrasion blocks 4 are arranged on the sides, close to the blanking through hole 3, of the water inlet pipe 1 and the water outlet pipe 2; unwelded areas 5 are arranged at two ends of the wear-resistant block 4, and a welding area 6 is arranged in the middle of the wear-resistant block 4.

In the embodiment, the water inlet pipe 1 and the water outlet pipe 2 in the water inlet and outlet combined pipe are made of 20G seamless steel pipes, so that the comprehensive mechanical property of the water inlet and outlet combined pipe is improved.

In this embodiment, each group of the water inlet and outlet combined pipes is provided with a water inlet 7, and the water inlet 7 is communicated with the water inlet pipe 1; the water inlet and outlet combined pipes are jointly provided with a water outlet 8, and the water outlet end of the water outlet pipe 2 is converged to the water outlet 8. The collection positions of the water outlet pipes 2 of the plurality of groups of water inlet and outlet combined pipes are distributed at the inlets of the discharging through holes 3 in a circular ring shape.

Specifically, the trend and the overall arrangement of inlet tube 1 and outlet pipe 2 avoid the influence to unloading opening 3, and the business turn over water composite pipe of a plurality of groups adopts the multiple spot cooling of intaking, and water inlet 7 is arranged to every business turn over water composite pipe of group promptly, changes traditional a little cooling mode of intaking, and all outlet pipes 2 adopt a delivery port 8, can form the water conservancy diversion effect of law, improve the cooling effect of business turn over water composite pipe.

In this embodiment, the wear-resistant blocks 4 are distributed along the axial tube length direction of the water inlet tube 1 or the water outlet tube 2. Specifically, the anti-wear blocks 4 are continuously welded in the axial tube length, but two ends of each anti-wear block 4 are not welded, namely, each anti-wear block 4 forms an unwelded area 5 and a welded area 6, so that alternating thermal stress generated alternately by the converter can be effectively eliminated.

In this embodiment, the outlet of the feeding port 3 and the vaporization cooling flue of the converter are fixed by a bolt. The installation position of the converter blanking device does not adopt any welding mode for assembly welding, and adopts a bolt type structure for connection, so that the thermal stress generated in the production process of the converter can be effectively eliminated.

In the embodiment, a sealing box body 9 is arranged on the outer side of the water inlet and outlet combined pipe, and a gap between the sealing box body 9 and the water inlet and outlet combined pipe is filled with a water-based environment-friendly gunning mix 10; and a gap between the water inlet pipe 1 and the water outlet pipe 2 is filled with a water-based environment-friendly gunning mix 10. Specifically, inside the sealed box 9, the gap between the water inlet pipe 1 and the water outlet pipe 2 is filled through the water-based environment-friendly gunning refractory 10, the overflow of coal gas and smoke dust is avoided, the problem of slag adhesion at the feed opening is reduced, the leakage can be avoided within 18 months, the safety guarantee is provided for converter smelting, and a large amount of manpower and material resources are saved.

To sum up, the utility model is provided with a plurality of groups of water inlet and outlet combined pipes, and the inner sides of the groups of water inlet and outlet combined pipes are provided with cylindrical blanking through holes 3; each group of water inlet and outlet combined pipes comprises a water inlet pipe 1 and a water outlet pipe 2, and the bottom of the water inlet pipe 1 is communicated with the bottom of the water outlet pipe 2; the anti-abrasion blocks 4 are arranged on the sides, close to the blanking through hole 3, of the water inlet pipe 1 and the water outlet pipe 2; the two ends of the anti-abrasion block 4 are provided with unwelded areas 5, and the middle part of the anti-abrasion block 4 is provided with a welding area 6. The trend and the overall arrangement of inlet tube 1 and outlet pipe 2 avoid the influence to unloading opening 3, and the business turn over water composite pipe of a plurality of groups adopts the multiple spot cooling of intaking, and water inlet 7 of every group business turn over water composite pipe configuration promptly changes traditional a little water cooling mode of intaking, and all outlet pipes 2 adopt a delivery port 8, can form the water conservancy diversion effect of law, improve the cooling effect of business turn over water composite pipe. The anti-abrasion blocks 4 are continuously welded in the axial tube length, but two ends of each anti-abrasion block 4 are not welded, namely, an unwelded area 5 and a welded area 6 are formed on each anti-abrasion block 4, so that alternating thermal stress generated alternately by the converter can be effectively eliminated. The installation position of the converter blanking device is connected by a bolt type structure without adopting any welding mode for assembly welding, so that the thermal stress generated in the production process of the converter can be effectively eliminated. Inside the sealed box 9, inlet tube 1 and outlet pipe 2 clearance are filled through water base environmental protection burn-in material 10, stop coal gas, smoke and dust excessive, have reduced the feed opening and have glued the sediment problem, can guarantee not to appear leaking in 18 months, provide the safety guarantee for converter smelting, save a large amount of manpower, material resources.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The converter blanking device is characterized by comprising a plurality of groups of water inlet and outlet combined pipes, wherein cylindrical blanking through holes (3) are formed in the inner sides of the groups of water inlet and outlet combined pipes;

each group of water inlet and outlet combined pipes comprises a water inlet pipe (1) and a water outlet pipe (2), and the bottom of the water inlet pipe (1) is communicated with the bottom of the water outlet pipe (2);

the anti-abrasion blocks (4) are arranged on the sides, close to the blanking through hole (3), of the water inlet pipe (1) and the water outlet pipe (2); unwelded areas (5) are arranged at two ends of the anti-abrasion block (4), and a welding area (6) is arranged in the middle of the anti-abrasion block (4).

2. A converter blanking device according to claim 1, wherein each group of said inlet and outlet combined pipes is provided with a water inlet (7), and said water inlet (7) is communicated with said water inlet pipe (1);

the water inlet and outlet combined pipes are jointly provided with a water outlet (8), and the water outlet end of the water outlet pipe (2) is converged to the water outlet (8).

3. The blanking device of the converter according to claim 2, characterized in that the collection points of the water outlet pipes (2) of the groups of water inlet and outlet combination pipes are distributed in a circular ring shape at the inlet of the blanking port (3).

4. A converter blanking device according to claim 1, wherein the wear blocks (4) are distributed along the axial length of the inlet pipe (1) or the outlet pipe (2).

5. A converter blanking device according to claim 1, characterized in that the outlet of the blanking port (3) is fixed to the evaporative cooling flue of the converter by means of a plug.

6. The blanking device of the converter according to the claim 1, characterized in that the outside of the water inlet and outlet combination pipe is provided with a sealed box body (9), and the gap between the sealed box body (9) and the water inlet and outlet combination pipe is filled with water-based environment-friendly gunning mix (10);

and a gap between the water inlet pipe (1) and the water outlet pipe (2) is filled with a water-based environment-friendly gunning mix (10).