CN211255970U

CN211255970U - Cooling device of hydraulic tapping machine and full-hydraulic tapping machine

Info

Publication number: CN211255970U
Application number: CN201921160600.9U
Authority: CN
Inventors: 邓振月; 陈文彬; 冯伟
Original assignee: Beijing Shougang Co Ltd
Current assignee: Beijing Shougang Co Ltd
Priority date: 2019-07-23
Filing date: 2019-07-23
Publication date: 2020-08-14
Anticipated expiration: 2029-07-23

Abstract

The utility model discloses a cooling device and full-hydraulic tapping machine of hydraulic tapping machine, include: the device comprises a water pipe, an air pipe, a three-way piece, an atomizing mechanism and a sealing mechanism; the air pipe is connected with the machine head of the hydraulic tapping machine and is provided with a tee joint piece; the water pipe is connected to the inlet of the atomization mechanism, and the outlet of the atomization mechanism is connected with the air pipe through a tee joint; the connection part of the interior of the machine head and the front end and the connection part of the rear end of the drill shank are respectively provided with a sealing mechanism. The cooling device adopts a water cooling and air cooling combined mode, so that the cooling effect is better, the burning deformation of the drill rod and the drill bit is avoided, and the service life of the drill rod and the drill bit is prolonged. Meanwhile, a sealing mechanism is additionally arranged in the machine head, so that cooling water is prevented from leaking from the tapping machine, and the safety in the tapping process and the smooth and stable production of the blast furnace are ensured.

Description

Cooling device of hydraulic tapping machine and full-hydraulic tapping machine

Technical Field

The utility model relates to a blast furnace metallurgical equipment technical field especially relates to a cooling device and full-hydraulic tapping machine of hydraulic tapping machine.

Background

In the blast furnace iron-making production process, in order to open the tap hole in time when the blast furnace is tapped, a tapping machine is required, so the tapping machine is one of key devices for tapping the blast furnace. A certain iron works uses the full hydraulic tapping machine of independent research and development in production, and the tap hole is opened through rotary cutting and impact breakage to hydraulic tapping machine drive opening drilling rod and drill bit, also can contact the molten iron at this in-process drilling rod and drill bit, therefore drilling rod and drill bit rapid heating up need cool down it and just can guarantee that it can not burn out the deformation, and then stable opening iron mouthful guarantees the steady production in the same direction as of blast furnace.

At present, a drill bit and a drill rod are cooled by an air cooling mode generally, but burning deformation of the drill rod and the drill bit often occurs in the tapping use process, and due to high temperature, the bent drill rod is disassembled and usually needs to be reversed and hit, so that faults of loosening of a head bolt of a tapping machine, cracking of a hanger, twisting off of a chain, breaking of a drill bit tail, position change of a rock drill and the like can be caused frequently, and a large amount of maintenance work is brought to maintenance personnel. Therefore, a cooling device capable of providing enough cooling capacity for the drill rod and the drill bit is needed, and the technical problems that the drill rod and the drill bit are burnt and deformed and normal tapping and smooth and stable production of a blast furnace are influenced in the tapping process due to insufficient cooling capacity are solved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cooling device and full-hydraulic tapping machine of hydraulic tapping machine to solve or partially solve current cooling method not enough to drilling rod and drill bit cooling capacity, lead to drilling rod and drill bit scaling loss to warp, influence the normal tapping of blast furnace and the technical problem in the same direction as steady production.

In order to solve the technical problem, the utility model provides a cooling device of a hydraulic tapping machine, which comprises a water pipe, an air pipe, a three-way piece, an atomizing mechanism and a sealing mechanism;

the air pipe is connected with the machine head of the hydraulic tapping machine and is provided with a tee joint piece;

the water pipe is connected to the inlet of the atomization mechanism, and the outlet of the atomization mechanism is connected with the air pipe through a tee joint;

the connection part of the interior of the machine head and the front end and the connection part of the rear end of the drill shank are respectively provided with a sealing mechanism.

Further, the sealing mechanism is a wear-resistant rubber sealing ring.

Furthermore, more than two sets of wear-resistant rubber sealing rings are arranged at the joint of the interior of the machine head and the front end of the drill bit shank, and more than two sets of wear-resistant rubber sealing rings are arranged at the joint of the interior of the machine head and the rear end of the drill bit shank.

Optionally, a water flow regulating valve is arranged between the water pipe and the atomizing mechanism, and the water amount in the water pipe flows into the atomizing mechanism after being regulated by the water flow regulating valve; and/or

An air quantity adjusting valve is arranged between the air pipe and the three-way piece, and the air quantity in the air pipe flows into the three-way piece after being adjusted by the air quantity adjusting valve.

Optionally, the water pipe is a constant-pressure industrial water pipe in a power pipe network.

Optionally, the air pipe is a constant pressure nitrogen pipe in the power pipe network.

Optionally, the atomizing mechanism is made of brass.

The utility model also provides a full-hydraulic tapping machine, including drilling equipment, feed arrangement, slewer and hydraulic means, still included foretell cooling device.

Through the utility model discloses an one or more technical scheme, the utility model has following beneficial effect or advantage:

this embodiment provides a hydraulic pressure tapping machine's cooling device, through preparation tee bend spare and installation atomizing mechanism on the tuber pipe, will cool off the aircraft nose that air and atomizing water received the tapping machine, cools off the drill bit and the drilling rod of tapping machine. The mode that adopts water cooling and forced air cooling to combine replaces traditional single forced air cooling, and the cooling effect is better, has avoided the scaling loss of drilling rod and drill bit to warp, has improved the life of drilling rod, drill bit. Meanwhile, in order to prevent the atomized water from condensing and flowing out of the tapping machine and causing the accident of iron-blasting channel, the sealing mechanisms are respectively arranged at the front end and the rear end of the inside of the machine head connected with the drill shank, thereby avoiding the leakage of cooling water, and ensuring the safety in the tapping process and the smooth production of the blast furnace while improving the cooling capacity of the drill rod and the drill bit.

Drawings

Fig. 1 is a schematic structural diagram of a hydraulic tapping machine including a cooling device according to an embodiment of the present invention;

fig. 2 is an enlarged view of a portion a in fig. 1 according to an embodiment of the present invention;

fig. 3 is a cross-sectional view of a portion B in fig. 1 according to an embodiment of the present invention.

Description of reference numerals:

1. an air duct; 2. a water pipe; 3. a tee fitting; 4. an atomization mechanism; 5. a sealing mechanism; 6. a rock drill 7 and a machine head; 8. a drill shank; 9. connecting sleeves; 10. a drill stem; 11. feeding a trolley; 12 a tapping machine girder; 13. An air volume adjusting valve; 14. a water flow regulating valve; 71 front end junction; 72. the rear end connection.

Detailed Description

In order to make the technical personnel in the technical field of the present invention understand the present invention more clearly, the following description is made in detail for the technical solution of the present invention through the specific embodiments with reference to the attached drawings.

The tapping machine is a key device for opening a tapping hole channel when a blast furnace taps, so that molten iron flows out smoothly, and an independently developed full hydraulic tapping machine is commonly used in a certain iron plant, and mainly comprises a hydraulic tapping machine, a feeding mechanism, a rock drilling mechanism and a hydraulic station. In fig. 1 a block diagram of a rock drilling mechanism comprising a rock drill 6, a head 7, a shank 8, a coupling sleeve 9, a drill rod 10, etc. and a feed mechanism comprising a feed trolley 11 and a tapping machine girder 12 is shown. The slewing mechanism carries the rock drilling mechanism and the feeding mechanism, and when tapping, the rock drilling mechanism and the feeding mechanism are carried to the position near the tapping hole of the blast furnace, and then the tapping hole is opened and pulled back. The hydraulic mechanism provides open power output for the rock drilling mechanism, when an iron notch is drilled, the feeding trolley 11 drives the rock drilling mechanism to do linear reciprocating motion on a crossbeam 12 of the tapping machine, and then the tapping machine 6 is matched to strike and drill the drill rod to open the iron notch for tapping. Originally, adopt air-cooled mode to cool off, but the cooling effect is not good, often appears drilling rod 10 and drill bit scaling loss deformation in the tapping process, adopts a lot of smoke and dust of air-cooled tapping in-process production simultaneously, can only avoid the raise dust through the wind-force of increase dust collecting equipment this moment, has not only wasted the energy but also can not satisfy the environmental protection requirement.

In order to better dissipate heat from the drill rod 10, in an alternative embodiment, a cooling device of a hydraulic tapping machine is provided, as shown in fig. 1 and 2, wherein fig. 2 is an enlarged view of a portion a of fig. 1, namely, an atomizing mechanism and a tee, and the cooling device includes: the device comprises an air pipe 1, a water pipe 2, a tee joint 3, an atomizing mechanism 4 and a sealing mechanism 5; the air pipe 1 is connected with a machine head 7 of the hydraulic tapping machine, and the air pipe 1 is provided with a tee joint part 3; the water pipe 2 is connected to the inlet of the atomizing mechanism 4, and the outlet of the atomizing mechanism 4 is connected with the air pipe 1 through the tee joint 3; the connection part 71 of the interior of the nose 7 and the front end of the drill shank 8 and the connection part 72 of the rear end are respectively provided with a sealing mechanism 5.

Specifically, the method comprises the following steps: in the embodiment, an atomization water cooling device is added on the basis of the original air cooling device, as shown in fig. 2, a tee piece 3 is manufactured or installed on an air pipe 1, an atomization mechanism 4 is installed at the tee piece 3, a water pipe 2 is connected to the atomization mechanism 4, water is atomized and then is input into the air pipe 1 through the tee piece 3 to be mixed with cooling air; as shown in fig. 3, fig. 3 is a cross-sectional view of the internal structure of the part B in fig. 1, the air hose 1 is connected to the position of the nose 7 of the rock drilling mechanism, hollow passages are formed in the nose 7 and the shank 8 connected to the nose 7, and cooling air mixed with atomized water can sequentially pass through the nose 7, the shank 8 and the connecting sleeve 9 to cool the drill rod 10. Meanwhile, steam generated by atomized water at high temperature cannot influence the environment, smoke generated in the cooling process is reduced, the output of dust removal equipment is saved, and the environmental protection requirement is met.

On the other hand, because the cooling air in this embodiment contains the atomized water, because the junction of the nose 7 and the shank adapter 8 of the original rock drill 6 is not completely sealed, in order to prevent the atomized water from condensing at the junction of the nose 7 and the shank adapter 8, flowing out of the tapping machine and entering the iron runner, and causing the situation of iron runner blast when molten iron flows out, the sealing mechanisms 5 are additionally arranged at the junctions of the front end and the rear end of the nose 7 and the shank adapter 8, so as to ensure that the cooling water cannot flow out of the iron runner, and ensure safe iron tapping.

As an alternative embodiment, the sealing mechanism 5 may use a wear-resistant rubber sealing ring, specifically, a fluorine rubber O-ring; further, more than two sets of wear-resistant rubber sealing rings can be arranged at the joint 71 between the interior of the machine head 7 and the front end of the drill bit shank 8, more than two sets of wear-resistant rubber sealing rings can be arranged at the joint 72 between the interior of the machine head 7 and the rear end of the drill bit shank 8, and the outflow of cooling water can be avoided due to the protection of the multiple wear-resistant rubber sealing rings.

Optionally, a tee 3 is arranged on the air pipe 1 directly above the center of the swing mechanism of the hydraulic tapping machine, specifically, the tee is used for installing an atomizing mechanism 4, so that atomized water is prevented from being condensed too early due to too long distance when entering the machine head 7, and further the atomizing and cooling effects are not affected.

Optionally, an air volume adjusting valve 13 is arranged between the air pipe 1 and the three-way member 3, and the air volume in the air pipe 2 is adjusted by the air volume adjusting valve 13 and then flows into the three-way member 3; and/or a water flow regulating valve 14 is arranged between the water pipe 2 and the atomizing mechanism 4, and the water quantity in the water pipe 2 flows into the atomizing mechanism after being regulated by the water flow regulating valve 14.

Optionally, the air volume adjusting valve 13 and the water flow adjusting valve 14 can both adopt a one-inch manual throttle control switch, and the air duct 1 and the water duct 2 can be simply, safely and reliably switched on and off to cool the tapping machine.

Optionally, the water pipe 2 can use a constant-pressure industrial water pipe in a power pipe network, directly uses the existing industrial water, does not need to additionally increase a water pipe on the head 7 of the tapping machine, reduces the line modification cost and saves the occupied space.

Optionally, the air pipe 1 can use a constant-pressure nitrogen pipe in the power pipe network as cooling air, other compressed air pipes are not needed to be additionally arranged, the line modification cost is reduced, and the occupied space is saved.

When using the constant voltage industrial water pipe and the constant voltage nitrogen gas pipe in the power pipe network, directly lead nitrogen gas and industrial water to corresponding adjusting valve department, then process the diameter, the length of the pore of transportation cooling air and atomized water according to pipe network wind pressure, water pressure and guarantee to produce invariable water atomization effect to full-hydraulic tapping machine drilling rod, avoided the atomized water too big to cause the influence to the taphole, the atomized water undersize can not play refrigerated effect again.

Optionally, the atomizing mechanism 4 is made of brass, so that the atomizing mechanism 4 can be prevented from rusting.

In another embodiment, there is provided a full hydraulic tapping machine, which is shown in fig. 1 and includes a rock drilling device, a feeding device, a rotating device and a hydraulic device, wherein the rock drilling device includes: the drilling machine comprises a rock drilling machine 6, a machine head 7, a drill bit tail 8, a connecting sleeve 9 and a drill rod 10, wherein a feeding device comprises a feeding trolley 11 and a tapping machine girder 12; the hydraulic tapping machine further comprises a cooling device as in the above embodiments. The work flow of the hydraulic tapping machine is roughly as follows: when a blast furnace is about to tap iron, opening an air quantity regulating valve 13 and a water flow regulating valve 14, atomizing the pipe network constant-pressure industrial water by an atomizing mechanism 4, mixing the atomized water with pipe network constant-pressure nitrogen to form cooling atomized water, and cooling a drill rod 10 by sequentially passing through a nose 7, a shank 8 and a connecting sleeve 9; then operating a slewing mechanism of the tapping machine to the door of the blast furnace, then operating the tapping machine, and under the driving of a feeding trolley 11, enabling the rock drilling machine 6, the machine head 7, the drill rod tail 8, the connecting sleeve 9 and the drill rod 10 to do linear reciprocating motion along a crossbeam 12 of the tapping machine, and performing tapping by matching with the striking and drill rod actions of the rock drilling machine 6; when the iron mouth is about to be poked open, the feeding trolley 11 is pulled back, then the rotating mechanism is pulled back, and the air quantity regulating valve 13 and the water flow regulating valve 14 are closed, thus completing a tapping process.

The application of the device completely meets the requirements of the standardized and standardized development of stokehole equipment, the traditional single air cooling is replaced by air cooling and water cooling, the cooling effect is better, and the steam generated by water at high temperature can not influence the environment; the mode of cooling atomized water generated by installing the tee piece and the atomizing mechanism at the air pipe is adopted, the traditional atomizing cabinet device is not needed, equipment faults caused by damage of each electrical element of the atomizing cabinet device can be effectively avoided, and troubleshooting is more convenient and faster. On the other hand, a sealing mechanism is added to the head of the rock drill of the tapping machine, so that the leakage of industrial water during tapping can be avoided without carrying out great equipment transformation, and an iron-blasting groove in the tapping process is avoided. By using the cooling device in the embodiment, the service lives of the drill rod and the drill bit are prolonged, the maintenance cost is reduced, the equipment faults are reduced, the smooth and stable production of the blast furnace is ensured, meanwhile, the device can be applied to various full hydraulic tapping machines of the same type, and the application range is wide.

this embodiment provides a hydraulic pressure tapping machine's cooling device, through make tee bend spare and installation atomizing mechanism on the tuber pipe, will cool off the aircraft nose that air and atomizing water received the tapping machine, cools off the drill bit and the drilling rod of tapping machine. The mode that adopts water cooling and forced air cooling to combine replaces traditional single forced air cooling, and the cooling effect is better, has avoided the scaling loss of drilling rod and drill bit to warp, has improved the life of drilling rod, drill bit. Meanwhile, in order to prevent the atomized water from condensing and flowing out of the tapping machine and causing the accident of iron-blasting channel, the sealing mechanisms are respectively arranged at the front end and the rear end of the inside of the machine head connected with the drill shank, thereby avoiding the leakage of cooling water, and ensuring the safety in the tapping process and the smooth production of the blast furnace while improving the cooling capacity of the drill rod and the drill bit.

The embodiment also provides a hydraulic tapping machine which comprises a rock drilling device, a feeding device, a rotating device, a hydraulic device and the cooling device in the embodiment. The hydraulic tapping machine can still normally work after tapping for many times, obviously reduces the burning loss and deformation probability of the drill rod and the drill bit, thereby reducing the maintenance cost of the tapping machine and reducing equipment faults.

While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A cooling device for a hydraulic tapping machine, comprising: the device comprises a water pipe, an air pipe, a three-way piece, an atomizing mechanism and a sealing mechanism;

the air pipe is connected with a machine head of the hydraulic tapping machine, and the three-way piece is arranged on the air pipe;

the water pipe is connected to the inlet of the atomization mechanism, and the outlet of the atomization mechanism is connected with the air pipe through the tee piece;

the sealing mechanism is respectively arranged at the joint of the interior of the machine head and the front end of the drill shank and the joint of the interior of the machine head and the rear end of the drill shank.

2. The cooling device of claim 1, wherein the sealing mechanism is a wear-resistant rubber seal.

3. The cooling device according to claim 2, wherein more than two sets of the wear-resistant rubber sealing rings are arranged at the joint of the interior of the machine head and the front end of the drill bit shank, and more than two sets of the wear-resistant rubber sealing rings are arranged at the joint of the interior of the machine head and the rear end of the drill bit shank.

4. The cooling device according to claim 1, wherein a water flow regulating valve is arranged between the water pipe and the atomizing mechanism, and the water in the water pipe flows into the atomizing mechanism after being regulated by the water flow regulating valve; and/or

5. The cooling apparatus of claim 1, wherein the water pipe is a constant pressure industrial water pipe in a power grid.

6. The cooling apparatus of claim 1, wherein the air duct is a constant pressure nitrogen duct in a power grid.

7. The cooling apparatus as claimed in claim 1, wherein the atomizing means is made of brass.

8. A full hydraulic tapping machine comprising a rock drilling device, a feeding device, a rotating device and a hydraulic device, characterized by further comprising a cooling device according to any one of claims 1 to 7.