CN-224212684-U - Connecting assembly of YZB4030 type hydraulic tapping machine of blast furnace

Abstract

The utility model provides a hydraulic tapping machine connecting assembly of a blast furnace YZB4030, which comprises a connecting main body, wherein a hollow cavity is formed in the connecting main body in a penetrating manner along the length direction, the hollow cavity sequentially comprises a tapping machine connecting channel, a water vapor channel and a drill rod connecting channel, the tapping machine connecting channel is in threaded connection and fit with a tapping machine vibrating rod, the drill rod connecting channel is in threaded connection and fit with the drill rod, and a tapping machine connecting limiting part is arranged outside the connecting main body around the periphery of the connecting main body. The utility model has the remarkable advantages of simple structure, light weight, convenience, low manufacturing cost, repeated use and the like, can effectively reduce the consumption of a drill rod in the tapping operation of the YZB4030 hydraulic tapping machine of the blast furnace, obviously reduce the difficulty of tapping and further reduce the oxygen burning frequency of the tapping, simultaneously, lightens the labor intensity of a worker in front of the blast furnace, reduces the safety risk, and forcefully promotes the cost reduction and synergy of blast furnace ironmaking.

Inventors

• CHEN HAILONG
• CHEN WEI
• LUO JIANJUN
• ZHOU RONGHUA
• WANG LIN
• He Zibao
• CHEN JINGYOU

Assignees

• 福建三钢闽光股份有限公司
• 福建省三钢(集团)有限责任公司

Dates

Publication Date

20260508

Application Date

20250305

Claims (6)

1. 1. The utility model provides a blast furnace YZB4030 type hydraulic tapping machine coupling assembling, its characterized in that, including connecting main part (1), connecting main part (1) run through along length direction and are provided with cavity (11), and this cavity (11) are including tapping machine connecting channel (111), steam passageway (112) and drilling rod connecting channel (113) in proper order, tapping machine connecting channel (111) and tapping machine rapping rod threaded connection cooperation, drilling rod connecting channel (113) and drilling rod (2) threaded connection cooperation, just the outside of connecting main part (1) is equipped with tapping machine connection limit part (12) around its periphery.
2. 2. The hydraulic tapping machine connecting assembly of the blast furnace YZB4030 type according to claim 1, wherein the central lines of the tapping machine connecting channel (111), the water vapor channel (112) and the drill rod connecting channel (113) are collinear to ensure smooth circulation of water and air.
3. 3. The connecting assembly of the hydraulic tapping machine for the blast furnace YZB4030 according to claim 1, wherein the upper and lower outer parts of the connecting main body (1) are in a convex arc structure.
4. 4. The connection assembly of the hydraulic tapping machine for the blast furnace YZB4030 according to claim 1, wherein the front and rear ends of the connection body (1) are chamfered to form chamfers.
5. 5. The connecting assembly of the hydraulic tapping machine for the blast furnace YZB4030 according to claim 1, wherein the connecting main body (1) is of a high temperature resistant and corrosion resistant alloy material structure.
6. 6. The hydraulic tapping machine connection assembly for blast furnace YZB4030 according to claim 1, characterized in that said connection body (1) is a part manufactured by integral cutting and heat treatment.

Description

Connecting assembly of YZB4030 type hydraulic tapping machine of blast furnace Technical Field The utility model relates to the field of connecting pieces of hydraulic tapping machines of blast furnaces, in particular to a connecting component of a YZB4030 hydraulic tapping machine of a blast furnace. Background The blast furnace tapping machine is a key device for opening a tap hole in the tapping process of a blast furnace, and ensuring smooth discharge of slag iron in the blast furnace. The long rod hydraulic rock drill is installed in a cantilever hanging mode and has the functions of rotation, advancing and retreating. The concrete operation flow is that an operator firstly stretches a drill rod with a drill bit into a tap hole mud sleeve, and accurately aligns the center line of the tap hole, and then a hydraulic rock drill of a drilling mechanism is started. After the hydraulic rock drill is started, the speed is reduced through the gear reducer, so that the drill rod is driven to rotate, and the drill bit is driven to drill holes in the iron notch. In the drilling process, the pushing mechanism is intermittently operated to push the drilling mechanism to continuously push forwards, so that the drill bit gradually penetrates into the iron notch. When the drill bit drills to the red point position, the rotating direction of the motor is changed by operating the reversing switch of the propelling mechanism, and the drill bit of the drilling mechanism is driven by the sliding trolley to withdraw from the iron notch. The drill rod connecting sleeve is used as an important component of the blast furnace tapping machine and is mainly used for being connected with a drill rod. However, the existing YAB4030 hydraulic tapping machine is provided with a bayonet drill rod connection mode when leaving the factory. In the process of the blast furnace production operation, when the YAB4030 type hydraulic tapping machine is used, at least 1 drill rod and 1 drill bit are consumed for each furnace iron, so that the cost in terms of the consumption of the drill rods and the drill bits is huge each month. Moreover, frequent use of oxygen burning to open the tap hole also results in difficulties in tap hole maintenance and increases the consumption of oxygen tubes and oxygen. Repeated observation of the tapping machine during production operation shows that when the tapping machine and the drill rod are in a forward state, the front assembly of the tapping machine and the drill rod are tightly connected together in a bayonet connection mode, and atomized water and compressed air which are introduced into the pore canal of the drill rod are sufficient. However, when the tap hole is drilled through, the drill rod starts to retract, and a gap of about 5cm is generated between the front assembly and the drill rod, so that atomized water and compressed air in the pore canal become severely insufficient. That is, the atomized water sprayed outwards from the drill bit and the pressure of the compressed air cannot effectively block the slag iron from flowing out of the tap hole channel, and finally the drill bit and the drill rod are stuck by the slag iron and cannot smoothly exit. At the moment, the connecting thread of the drill bit and the drill rod can be broken by means of the outward pulling force of the tapping machine, so that the drill bit is left in the pore canal. Therefore, we propose a connecting component of a hydraulic tapping machine of a blast furnace YZB4030 to effectively solve the above technical problems in the prior art. Disclosure of utility model The utility model aims to provide a connecting component of a hydraulic tapping machine of a blast furnace YZB4030, which solves the technical problems in the prior art. The connecting component of the hydraulic tapping machine for the blast furnace YZB4030 comprises a connecting main body, wherein a hollow cavity is formed in the connecting main body in a penetrating mode along the length direction, the hollow cavity sequentially comprises a tapping machine connecting channel, a water vapor channel and a drill rod connecting channel, the tapping machine connecting channel is in threaded connection and fit with a tapping machine vibrating rod, the drill rod connecting channel is in threaded connection and fit with the drill rod, and a tapping machine connecting limiting part is arranged outside the connecting main body around the periphery of the connecting main body. Further, the central lines of the tapping machine connecting channel, the water vapor channel and the drill rod connecting channel are collinear, so that smooth circulation of water and air is ensured. Further, the upper and lower outer parts of the connecting main body are in a convex arc-shaped structure. Further, the ends of the front and rear ends of the connecting body are chamfered to form chamfers. Further, the connecting body is a part which is integrally cut and manufactured through heat t