Hydraulic mud gun nozzle protection pad device

Abstract

The utility model relates to the field of blast furnace hydraulic mud gun iron mouth plugging, specifically a hydraulic mud gun gun nozzle protective pad device, including a blast furnace shell and an iron mouth channel, an iron mouth frame is installed on the blast furnace shell, a mud sleeve is arranged in the iron mouth frame, the iron mouth channel runs through the iron mouth frame, a gun nozzle pad is installed in the iron mouth frame, the gun nozzle pad is installed on the mud sleeve, and a gun nozzle is fixedly connected to the gun nozzle pad. The utility model is provided with a gun nozzle pad, which is convenient for the gun mud to form a "mushroom head" shape after being spit out, and is convenient for fitting with the mud sleeve to form a draft angle, so as to avoid the mud sleeve gap caused by the right-angle drafting and bringing out the gun mud of the mud sleeve; by pressing the gun nozzle pad into the mud sleeve and forming a sealing groove with the mud sleeve, it is ensured that when the hydraulic mud gun machine hits the iron mouth channel with mud, there will be no gun mud overflowing, causing the plugging failure, and the safety is high.

Description

Technical Field

[0001] The utility model relates to the field of blast furnace hydraulic mud gun iron hole blocking, and discloses a hydraulic mud gun gun mouth protection pad device. Background Art

[0002] In the iron-making blast furnace production process, after each batch of iron is tapped, a hydraulic mud gun machine is needed to block the tapping port to facilitate smelting in the furnace. However, in the past, a circular flat pad was used as a nozzle pad at the muzzle of the mud gun machine, which needed to be welded and installed on the muzzle. When the muzzle was blocked after the blast furnace was tapped, it played a role in forming a seal with the mud sleeve and protecting the muzzle from burning. Due to its simple, weak structure and poor sealing effect, accidents in which the hydraulic mud gun machine was burned by high-temperature molten iron due to unsuccessful blocking have frequently occurred in production practice in recent years. Utility Model Content

[0003] In view of the defects in the prior art, the utility model aims to provide a hydraulic mud gun nozzle protective pad device to increase the closed area, form a sealing groove, reduce the frequency of blast furnace blockage, mud leakage and iron leakage problems, thereby ensuring smooth blast furnace production and reducing the possibility of hydraulic mud gun being burned.

[0004] In order to solve the above technical problems, the utility model proposes the following technical solutions:

[0005] A hydraulic mud gun nozzle protective pad device comprises a blast furnace shell and an iron mouth channel, an iron mouth frame is installed on the blast furnace shell, a mud sleeve is arranged in the iron mouth frame, the iron mouth channel passes through the iron mouth frame, a gun nozzle pad is installed in the iron mouth frame, the gun nozzle pad is installed on the mud sleeve, and a gun nozzle is fixedly connected to the gun nozzle pad.

[0006] Furthermore, a pin is welded on the gun nozzle pad, and an ear plate is welded on the gun nozzle, and the pin passes through the ear plate.

[0007] Furthermore, a pin shaft hole is opened on the pin shaft, and an oblique iron pin is passed through the pin shaft hole. The oblique iron pin is an ordinary carbon steel plate, and all edges of the oblique iron pin are chamfered.

[0008] Furthermore, the inner side of the muzzle pad outlet has a 24° taper and the outer side has a 15.7° taper.

[0009] It can be seen from the above technical solution that the beneficial effects of the utility model are:

[0010] The utility model provides a gun nozzle pad, which is convenient for the gun mud to form a "mushroom head" shape after being spit out, and is also convenient for fitting with the mud sleeve to form a draft angle, thereby avoiding a gap in the mud sleeve caused by right-angle drafting with the mud sleeve gun mud; the gun nozzle pad is pressed into the mud sleeve to form a sealing groove with the mud sleeve, thereby ensuring that when the hydraulic mud gun machine spit mud into the iron mouth channel, no gun mud will overflow, causing plugging failure, and the utility model has high safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0012] Figure 1 It is a schematic diagram of the overall assembly of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the gun nozzle pad in the utility model.

[0014] Reference numerals:

[0015] 01-blast furnace shell, 02-iron mouth frame, 03-mud sleeve, 04-iron mouth channel, 1-gun nozzle pad, 2-ear plate, 3-pin shaft, 4-gun nozzle, 5-inclined iron pin. DETAILED DESCRIPTION

[0016] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0017] See also Figure 1-2 A hydraulic mud gun nozzle protective pad device comprises a blast furnace shell 01 and an iron mouth channel 04, an iron mouth frame 02 is installed on the blast furnace shell 01, a mud sleeve 03 is arranged in the iron mouth frame 02, the iron mouth channel 04 passes through the iron mouth frame 02, a gun nozzle pad 1 is installed in the iron mouth frame 02, the gun nozzle pad 1 is installed on the mud sleeve 03, and a gun nozzle 4 is fixedly connected to the gun nozzle pad 1.

[0018] In actual use, by setting the gun nozzle pad 1, it is convenient for the gun mud to form a "mushroom head" shape after spitting out, and at the same time it is convenient to fit with the mud sleeve to form a draft angle, so as to avoid the right-angle drafting bringing out the mud sleeve gun mud and causing the mud sleeve to have a gap; by pressing the gun nozzle pad 1 into the mud sleeve 03 and forming a sealing groove with the mud sleeve, it is ensured that when the hydraulic mud gun machine spit mud into the iron mouth channel 04, no gun mud will overflow, causing the plugging failure, and the safety is high.

[0019] In this embodiment, a pin 3 is welded on the gun nozzle pad 1, and an ear plate 2 is welded on the gun nozzle 4. The pin 3 passes through the ear plate 2. Specifically, there are two pairs of ear plates 2, which are arranged symmetrically at 180°. The middle diameter of the ear plate is 31mm-33mm, which is slightly larger than the diameter of the pin 3, so that the pin 3 can pass through between the two ear plates 2.

[0020] In this embodiment, a pin hole is opened on the pin shaft 3, and an inclined iron pin 5 is passed through the pin hole. The inclined iron pin 5 is an ordinary carbon steel plate, and all edges of the inclined iron pin 5 are chamfered. The pin shaft 3 is made of ordinary carbon steel plate by cutting and processing, and all edges are chamfered. When in use, it passes through the pin hole and cooperates with the ear plate 2 and the pin shaft 3 to lock the nozzle pad 1 on the nozzle 4.

[0021] In the present embodiment, the inner side of the outlet of the gun nozzle pad 1 is tapered at 24°, and the outer side is tapered at 15.7°; specifically, the inner side of the outlet of the gun nozzle pad 1 is tapered at about 24°, which is convenient for the gun mud to form a "mushroom head" shape after spitting out, and the outer side is tapered at about 15.7°, which is convenient for fitting with the mud sleeve to form a draft angle, thereby avoiding the mud sleeve gap caused by right-angle drafting bringing out the mud sleeve gun mud.

[0022] Among them, when plugging the mouth, the front end of the mud gun fits into the mud sleeve 03 area, pressing out part of the gun mud making the mud sleeve 03, thereby forming a closed groove to avoid gun mud and iron leakage. When pulling the gun, the taper of the gun mouth pad 1 can effectively avoid bringing out the gun mud in the mud sleeve 03 area to form a gap.

[0023] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A hydraulic mud gun nozzle protection pad device, comprising a blast furnace shell (01) and an iron mouth passage (04), wherein an iron mouth frame (02) is installed on the blast furnace shell (01), a mud sleeve (03) is arranged in the iron mouth frame (02), and the iron mouth passage (04) passes through the iron mouth frame (02), characterized in that: A gun nozzle pad (1) is installed in the iron mouth frame (02), the gun nozzle pad (1) is installed on the mud sleeve (03), and a gun nozzle (4) is fixedly connected to the gun nozzle pad (1).

2. A hydraulic mud gun nozzle protection pad device according to claim 1, characterized in that: A pin shaft (3) is welded on the gun nozzle pad (1), and an ear plate (2) is welded on the gun nozzle (4), and the pin shaft (3) passes through the ear plate (2).

3. A hydraulic mud gun nozzle protection pad device according to claim 2, characterized in that: The pin shaft (3) is provided with a pin shaft hole, and an oblique iron pin (5) is passed through the pin shaft hole. The oblique iron pin (5) is made of ordinary carbon steel plate, and all edges of the oblique iron pin (5) are chamfered.

4. A hydraulic mud gun nozzle protection pad device according to claim 1, characterized in that: The inner side of the outlet of the gun nozzle pad (1) is tapered at 24°, and the outer side is tapered at 15.7°.

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