Blast furnace taphole mud sleeve drill rod fixing support
By designing a fixed bracket for the drill rod of the mud sleeve at the blast furnace taphole, and using a fixed frame and positioning rod structure to achieve precise fixing of the drill rod, the problems of time-consuming, labor-intensive, and safety hazards associated with traditional mud sleeve drilling are solved, improving operational efficiency and safety, and meeting environmental protection requirements.
Patent Information
- Application Number
- CN202520050315.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-09
- Publication Date
- 2025-12-23
- Estimated Expiration
- 2035-01-09
AI Technical Summary
The existing method of applying mud jackets to blast furnaces is time-consuming, labor-intensive, and lacks precision. Operators face safety hazards and health risks when working in high-temperature areas for extended periods. Furthermore, the traditional method affects the normal air supply and stable operation of the blast furnace.
A blast furnace taphole mud sleeve drill rod fixing bracket is designed, which adopts a fixing frame and positioning rod structure. The drill rod is fixed by positioning grid, realizing precise operation and single-person operation, and reducing the exposure time of high temperature area.
It improves the accuracy and efficiency of mud jacketing operations, reduces the labor intensity and health risks of operators, ensures the normal operation of the blast furnace, and saves costs while meeting environmental protection requirements.
Smart Images
Figure CN223705630U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of blast furnace equipment, concretely relates to a fixed support for a blast furnace iron hole mud sleeve drill rod. BACKGROUND
[0002] A blast furnace is an important device for producing molten iron in a steel enterprise, and an iron hole mud sleeve is arranged on the furnace shell at the iron hole of a large blast furnace to open or block the iron hole, which can make the smelting production proceed smoothly. 3 The blast furnace is a single iron hole tapping device, and the iron hole mud sleeve is eroded by castable for a long time, so it needs to be replaced regularly.
[0003] The traditional way of removing the mud sleeve is to remove the fixed steel plate of the opening machine first, then use a steel wire rope to suspend the drill rod, and finally manually pry the drill rod with a steel drill and a self-made small hook to remove the fixed position. (1) At least three people are needed to assist and cooperate to determine the position of the drill rod for mud sleeve removal operation, which is time-consuming and labor-intensive, and the operator is at risk of heatstroke when fixing the drill rod in the high-temperature area for a long time. (2) During the process of removing the mud sleeve, the operator needs to be in the iron hole area for a long time (4-5 hours) to observe the drilling amount of the drill rod in real time, which has low visibility, high safety risk, and the operator will inhale a large amount of castable dust during long-term operation in the high-temperature gas area, which will cause occupational diseases (pneumoconiosis). (3) The traditional way of fixing the drill rod position is blind, which has poor precision, so that the opening machine can remove at most 50% of the mud sleeve, and the remaining part needs to be removed manually with a pneumatic pick, which increases the labor intensity and affects the normal air supply and stable operation of the blast furnace. (4) During the adjustment of the drill rod with the steel drill, it is difficult to pry the drill rod with the manual steel drill due to the small operation space, so the correction is very difficult. (5) The drill rod is easy to shift during rotation, which can cause mechanical injury. UTILITY MODEL CONTENTS
[0004] The utility model provides a fixed support for a blast furnace iron hole mud sleeve drill rod, which aims to solve the problem of poor precision, time-consuming and labor-intensive of the existing mud sleeve removal method, and the operator inhales a large amount of castable dust during long-term operation in the high-temperature gas area, which affects health.
[0005] To achieve the purpose, the utility model adopts the following technical solutions:
[0006] The utility model provides a high furnace iron mouth mud sleeve drill rod fixed support, including fixed frame, the equidistance is equipped with a plurality of positioning hole on the inside wall of horizontal, vertical department of fixed frame, is equipped with a plurality of perpendicular positioning rod in fixed frame, and positioning rod end inserts into positioning hole after with the fixed cavity of fixed frame is divided into a plurality of positioning square, the fixed frame top one end is equipped with fixed plate, and the fixed frame bottom one side diagonal with fixed plate is equipped with handheld part, and the fixed frame top other end and the fixed frame bottom one side diagonal position are all equipped with the clamping plate of one end.
[0007] Further, the positioning rods of the horizontal and vertical parts are slidably connected with each other, and the positions are adjustable.
[0008] Further, the positioning rods are in the form of six-angled steel structure.
[0009] Further, the width of the positioning square is 50-75mm.
[0010] Further, the end of the handheld part extends out of the fixed frame, and the extension length is 200-300mm.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. When the high furnace iron mouth mud sleeve drill rod fixed support is used to perform mud sleeve operation, only the opening machine fixed drill rod needs to be adjusted and placed in the positioning square, one-person operation is realized throughout the process, time and labor are saved, and the operator can be prevented from staying in the high-temperature area for a long time, inhaling a large amount of castable dust, and causing the risk of occupational disease and scalding heatstroke, which is safe and reliable.
[0013] 2. The fixed support is used to perform precise knocking, and replaces the traditional blind knocking mode, greatly improves the precision of knocking, and improves the knocking efficiency of the mud sleeve operation to more than 90%, and then only manual pickaxe is needed to remove the corners, the guiding effect is obvious, the working strength and difficulty are reduced, the normal blast furnace air supply and stable running are ensured. Moreover, the fixed drill rod is not displaced in the rotating process after being fixed by the fixed support, and the drill rod does not need to be manually pried in the narrow space during knocking, and mechanical injury is reduced.
[0014] 3. The high furnace iron mouth mud sleeve drill rod fixed support provided by the utility model uses waste steel pipes as consumables, achieves the purpose of repairing old things to make new ones, meets the national energy-saving and environmental protection requirements, is simple to manufacture, low in cost, and high in practicality. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 The high furnace iron mouth mud sleeve drill rod fixed support structure schematic view provided by the utility model is shown in the figure.
[0016] In the figure: 1-fixed frame; 2-positioning hole; 3-positioning rod; 4-positioning square; 5-fixed plate; 6-clamping plate; 7-handheld part. DETAILED DESCRIPTION
[0017] The utility model is further described below with reference to the drawings:
[0018] As Figure 1 shown, the utility model discloses a blast furnace iron tapping hole clay sleeve drill rod fixed support, including fixed frame 1, the equal interval of the horizontal, vertical department inner wall of fixed frame 1 is equipped with a plurality of positioning hole 2, and a plurality of perpendicular positioning rod 3 are equipped in fixed frame 1, and the positioning rod 3 is six prism steel structure of 450mm×520mm, and the positioning rod 3 of horizontal, vertical department is slidably connected, and the position is adjustable, and after the end of positioning rod 3 inserts positioning hole 2, the inner cavity of fixed frame 1 is divided into a plurality of positioning square 4. In order to further fit the iron tapping hole structure, enhance the effect of beating clay sleeve, the width of the positioning square 4 of fixed frame 1 inner bottom layer this time is 75mm, and the width of the rest positioning square 4 is all 50mm.
[0019] In order to facilitate the fixed support to be installed quickly at the iron tapping hole, a fixed plate 5 is vertically welded at one end of the top of the fixed frame 1, which facilitates positioning. The side of the bottom of the fixed frame 1 diagonally opposite the fixed plate 5 is provided with a handheld portion 7, the end of which extends out of the fixed frame 1, which facilitates gripping, and the extension length is 200mm. The other end of the top of the fixed frame 1 and the end of the bottom of the fixed frame 1 at the diagonally opposite position are each provided with a clamping plate 6, which facilitates clamping into the position of the iron tapping hole.
[0020] Before the clay sleeve needs to be beaten, the fixed support is welded and fixed on the iron tapping hole frame. When the clay sleeve is beaten, the operating personnel only need to align the fixed drill rod of the opening machine to the positioning square 4, drill a hole in each positioning square 4 with the drill rod to remove the clay sleeve. During the removal process, the positioning square 4 can effectively fix the drill rod, so that the operating personnel do not need to be in the high-temperature area of the iron tapping hole for a long time. The subsequent opening machine operates in each positioning square 4 in turn, so that the removal of the clay sleeve can be safely and quickly completed. After the fixed support is used in a 450m3 blast furnace of an ironworks, the time for beating the clay sleeve is shortened from the original 4-5h to within 1h, 92% of the clay sleeve is removed at one time, the work intensity of the subsequent manual pickaxe removal is reduced, the curing time after the new clay sleeve is made is increased, the service life of the new clay sleeve is prolonged, the risk of heatstroke and mechanical injury that may occur due to the long-time contact of personnel with equipment in the high-temperature area is reduced, and the occurrence of occupational diseases (pneumoconiosis) is prevented.
Claims
1. A fixing bracket for the drill rod of the mud sleeve at the blast furnace taphole, characterized in that: The utility model relates to a fixed frame (1) is equipped with a plurality of positioning holes (2) on the horizontal and vertical inner wall equidistantly, and the fixed frame (1) is equipped with a plurality of mutually perpendicular positioning rods (3), and the positioning rod (3) end inserts the positioning hole (2) and will the fixed frame (1) inner chamber be divided into a plurality of positioning square (4) after.
2. The fixed support for the drill pipe of the taphole clay pot of the blast furnace according to claim 1, characterized in that: The fixed frame (1) top one end is equipped with the fixed plate (5), and the fixed frame (1) bottom one side diagonally arranged with the fixed plate (5) is equipped with the handheld part (7), and the fixed frame (1) top other end and the fixed frame (1) bottom one end diagonally arranged position are all equipped with the clamping plate (6).
3. The fixed support for the drill pipe of the taphole clay pot of the blast furnace according to claim 2, characterized in that: The positioning rod (3) of horizontal and vertical parts is slidably connected, and the position is adjustable.
4. The fixed support for the drill pipe of the taphole clay pot of the blast furnace according to claim 3, characterized in that: The positioning rod (3) is six steel structures.
5. A fixed support for a drill pipe in a high-temperature hole according to any one of claims 1 to 4, characterized in that: The width of the positioning square (4) is 50-75mm. The handheld part (7) end extends the fixed frame (1) setting, and the extension length is 200-300mm.