CN215885531U - Pressure dredging device for blocked branch pipe - Google Patents

Abstract

The utility model discloses a pressure dredging device for blocked branch pipes, relates to the technical field of blast furnace ironmaking coal injection, and solves the technical problems that operation is inconvenient and working conditions are affected when blocked branch pipes are dredged after shutdown and pressure relief in the related technology. The three-way pipe includes first mouth of pipe, the second mouth of pipe and the third mouth of pipe, and the ring flange is fixed in the first mouth of pipe department of three-way pipe, ring flange and the one end fixed connection of jam branch pipe, and the jam branch pipe is equipped with the on-off valve, and the three-way pipe is worn to locate by the dwang, and the dwang passes first mouth of pipe and the setting of the second mouth of pipe, and dwang one end is connected with the drill bit, and the percussion drill is connected to the other end, and the sealing member is fixed in second mouth of pipe department to sealed dwang and three-way pipe, the pressure release stop valve is installed in the third mouth of pipe department of three-way pipe. The under-pressure dredging device can realize the dredging of the blocked branch pipe under the state of no shutdown and under pressure, and is favorable for improving the problems that a series of defects of complex operation exist due to shutdown and adverse effects are possibly caused to normal production due to shutdown.

Description

Pressure dredging device for blocked branch pipe

Technical Field

The utility model relates to the technical field of blast furnace ironmaking coal injection, in particular to a branch pipe blockage under-pressure dredging device.

Background

The coal injection distributor is an important device for injecting coal powder into the blast furnace, and the normal operation of the coal injection distributor ensures that each air port of the blast furnace ensures a certain coal injection amount, so that the coal injection amount required by the blast furnace is achieved and the uniform injection in the circumferential direction of the blast furnace is ensured. In the production process of the blast furnace, the branch pipe of the coal injection distributor part has the phenomenon of coal powder blockage, and the blockage position is positioned at the joint of the branch pipe of the coal injection distributor and the first cut-off valve.

When the compressed air cannot be ejected by the reverse blowing, the coal is stopped and the pressure is released in a whole series, and then the pipeline is disassembled and treated by the impact drill. On one hand, the coal guns blocking the pipelines need to be retracted into the gun inserting hole channels to prevent burning out, the coal guns of the series of normal pipelines need to be cooled by high-pressure air, operation is inconvenient, on the other hand, the coal guns affect the coal injection quantity of the blast furnace, and the operation of the blast furnace is affected when the furnace condition is not good.

SUMMERY OF THE UTILITY MODEL

The application provides a dredging device is pressed in area to branch pipe jam has solved and has blockked up the technical problem that the mediation has inconvenient operation, influences the behavior after the branch pipe shuts down the pressure release among the correlation technique.

The utility model provides a pull throughs is pressed in branch pipe jam, including the three-way pipe, the ring flange, the dwang, sealing member and pressure release stop valve, the three-way pipe includes first mouth of pipe, the second mouth of pipe and the third mouth of pipe, the ring flange is fixed in the first mouth of pipe department of three-way pipe, ring flange and the one end fixed connection of jam branch pipe, it is equipped with the on-off valve to block up the branch pipe, the three-way pipe is worn to locate by the dwang, first mouth of pipe and the setting of second mouth of pipe are passed to the dwang, dwang one end is connected with the drill bit, other end connection function spare, rotate with the drive dwang, the sealing member is fixed in second mouth of pipe department, with sealed dwang and three-way pipe, the pressure release stop valve is installed in the third mouth of pipe department of three-way pipe.

Optionally, the sealing member includes graphite packing, and graphite packing disposes sealed cap, and sealed cap is fixed in second mouth of pipe department, and graphite packing encircles the dwang setting, locates sealed cap in the graphite packing.

Optionally, the pressure dredging device for blocking the branch pipe is further provided with a pipe hoop and a butt wire, the second pipe orifice of the three-way pipe is provided with an outer wire, the pipe hoop is installed at the second pipe orifice of the three-way pipe in a threaded mode, one end of the butt wire is connected with the pipe hoop, and the other end of the butt wire is in threaded connection with the sealing cap.

Optionally, the pipe clamp is arranged in a reducing pipe clamp.

Optionally, a turning rod is threaded with the drill bit.

Optionally, the one end that the dwang is close to the drill bit is equipped with the anticreep snap ring, and the external diameter of anticreep snap ring is greater than the one end open-ended internal diameter of keeping away from the three-way pipe of sealed cap.

Optionally, the flange is connected to the first pipe orifice through a quick union and a tee pipe.

Optionally, the inner diameter of the opening at the end of the sealing cap far away from the tee pipe is larger than the diameter of the rotary rod and smaller than the outer diameter of the drill bit.

Optionally, the functional element comprises a hammer drill.

Optionally, the blocking branch pipe is a branch pipe of the coal injection distributor, the on-off valve is a coal feeding stop valve, the coal feeding stop valve is installed at one end of the branch pipe of the coal injection distributor, and the flange plate is connected with the coal feeding stop valve through a flange.

The beneficial effect of this application is as follows: the application provides a branch pipe blockage under-pressure dredging device, a three-way pipe is arranged at one end of a blocked branch pipe through a flange plate, a rotating rod penetrates through the three-way pipe, a drill bit is arranged at one end of the rotating rod, the drill bit is driven to rotate by the percussion drill, so that the drill bit drills the blocking position of the blocking branch pipe, the third pipe orifice of the three-way pipe is provided with a pressure relief stop valve, the second pipe orifice is provided with a sealing element, close through the pressure release stop valve with the sealing member, the ring flange will take pressure pull throughs with block up the branch pipe intercommunication, separate with the external world, the during operation pressure is taken to press in the pull throughs unanimous with blocking up the branch pipe, the pressure release stop valve realizes the uninstallation of mediation back ring flange with the on-off valve of blocking up the branch pipe mutually supporting, this take pressure pull throughs can realize blocking up the branch pipe and do not shut down the mediation under the pressure state, be favorable to improving because shut down and have a series of complicated defects of operation, because shut down and probably cause the problem of adverse effect to normal production.

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 will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention.

FIG. 1 is a schematic plan view of a pressure dredging device for blocking a branch pipe provided by the present application;

fig. 2 is a space structure schematic diagram of a branch pipe blocking pressurized dredging device provided by the application.

The attached drawings are marked as follows: 100-three-way pipe, 110-first pipe orifice, 120-second pipe orifice, 130-third pipe orifice, 200-flange plate, 210-quick union, 300-rotating rod, 310-drill bit, 400-sealing element, 410-sealing cap, 420-graphite packing, 500-pressure relief valve, 600-pipe hoop and 700-pair wire.

Detailed Description

The embodiment of the application provides a pressure dredging device for blocking a branch pipe, and solves the technical problems that in the related art, the operation is inconvenient and the working condition is influenced in the dredging process after the branch pipe is blocked and the pressure is released.

In order to solve the technical problems, the general idea of the embodiment of the application is as follows:

the utility model provides a pull throughs is pressed in branch pipe jam, including the three-way pipe, the ring flange, the dwang, sealing member and pressure release stop valve, the three-way pipe includes first mouth of pipe, the second mouth of pipe and the third mouth of pipe, the ring flange is fixed in the first mouth of pipe department of three-way pipe, the ring flange with block up branch pipe one end fixed connection, it is equipped with the on-off valve to block up the branch pipe, the three-way pipe is worn to locate by the dwang, first mouth of pipe and the setting of the second mouth of pipe are passed to the dwang, dwang one end is connected with the drill bit, other end connection function spare, rotate with the drive dwang, the sealing member is fixed in second mouth of pipe department, with sealed dwang and three-way pipe, the pressure release stop valve is installed in the third mouth of three-way pipe department.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

Referring to fig. 1 and 2, the embodiment discloses a branch pipe blockage pressure dredging device, which comprises a three-way pipe 100, a flange 200, a rotating rod 300, a sealing element 400 and a pressure relief valve 500. The three-way pipe 100 comprises a first pipe orifice 110, a second pipe orifice 120 and a third pipe orifice 130, wherein the first pipe orifice 110 and the second pipe orifice 120 are located at two ends of a straight section, and a pipe section where the third pipe orifice 130 is located is connected to a pipe wall of the straight section. As shown in fig. 1 and fig. 2, the tee 100 in this embodiment may be a right-angled tee 100, or may be an oblique tee.

As shown in fig. 1 and fig. 2, a flange 200 is fixed at the first orifice 110 of the three-way pipe 100, a pressure relief valve 500 is arranged at the third orifice 130 of the three-way pipe 100, the pressure dredging device comprises a rotating rod 300 penetrating through the three-way pipe 100, penetrating through the first orifice 110 and the second orifice 120, correspondingly penetrating through the flange 200, and a sealing member 400 is further arranged at the second orifice 120 to seal a gap between the rotating rod 300 and the three-way pipe 100, so as to realize a pressure maintaining state in the three-way pipe 100 during dredging. With respect to the rotation lever 300, one end is connected with the drill 310 and the other end is connected with the function member to drive the rotation lever 300 to rotate. The functional element is preferably a percussion drill, but may be replaced by another, e.g. ordinary electric drill. The rotating rod 300 and the drill bit 310 can be screwed or connected in other modes such as welding, and the detachable connection of the screw thread connection is preferred, so that the drill bits 310 in different types can be replaced conveniently, and the device is suitable for pipelines with various calibers.

When the anti-washing device works, the flange plate 200 is connected with a pipe end flange of the blocked branch pipe, the drill bit 310 extends into the blocked branch pipe, the impact drill drives the drill bit 310 to dredge the blocked part, and the blocking obstacle which cannot be solved by back washing is solved. Firstly, the blocked branch pipe is in a blocked state, the flange 200 is in a pressure maintaining state, the pressure relief valve 500 is installed, the flange 200 at the first pipe orifice 110 is sealed, the pressure relief valve 500 at the third pipe orifice 130 is closed, and the sealing element 400 at the second pipe orifice 120 is sealed, so that the pressure maintaining function of the three-way pipe 100 is realized, and the pressure maintaining is continuously carried out on the blocked branch pipe after the obstacle is dredged.

After the dredging is completed, the rotating rod 300 is slowly retreated into the three-way pipe 100, the on-off valve blocking the branch pipe is closed, the pressure relief stop valve 500 is opened again to relieve the pressure of the three-way pipe 100, and the branch pipe blocking pressure dredging device is convenient to detach. On the other hand, when dredging by the drill bit 310 is not complete, a back-blowing or back-washing device is arranged at the pressure relief valve 500, so that the blockage is completely cleaned.

In conclusion, the under-pressure dredging device can dredge the blocked branch pipe under the state of no shutdown and under pressure, and is favorable for improving the problems that a series of defects of complex operation exist due to shutdown and adverse effects can be caused to normal production due to shutdown. And the back flushing or back flushing device can be installed at the pressure relief valve 500, thereby also providing the back flushing function, the seriously blocked branch pipe can be completely cleaned through one device, the use is convenient, the pressure relief is not needed in the process, the operation is convenient, and the normal production is ensured.

Optionally, regarding the sealing member 400, a graphite packing 420 may be optionally used to satisfy the sealing of the rotating rod 300, the graphite packing 420 is configured with a sealing cap 410, and the sealing cap 410 is fixed at the second pipe orifice 120, usually by screw thread installation. The graphite packing 420 is disposed around the rotating lever 300, and the sealing cap 410 is disposed in the graphite packing 420.

Dwang 300 can adopt the smooth stainless steel solid cylinder in surface, pass sealed cap 410 with dwang 300 after, will dip in oily graphite packing 420 and twine on dwang 300 in the sealed cap 410 of impressing, sealed cap 410 is at threaded connection's the tightening in-process, can make graphite packing 420 fill sealed cap 410 inner space, guarantee that the gap is sealed between movable rod and sealed cap 410 centre bore, guaranteed simultaneously that the movable rod rotates and the interior outer activity does not receive too big influence.

More specifically, in addition to the stuffing box form of graphite disk 420, other forms of dynamic sealing may be used, such as an O-ring.

Optionally, as shown in fig. 1 and fig. 2, the pipe blockage pressure dredging device is further provided with a pipe hoop 600 and a counter-screw 700, the second pipe orifice 120 of the three-way pipe 100 is an external screw, the pipe hoop 600 is threadedly mounted at the second pipe orifice 120 of the three-way pipe 100, one end of the counter-screw 700 is connected with the pipe hoop 600, and the other end of the counter-screw is threadedly connected with the sealing cap 410. Through setting up pipe hoop 600 and to silk 700, pipe hoop 600 one end internal diameter matches with the second mouth of pipe 120 external diameter of three-way pipe 100, and pipe hoop 600 other end internal diameter matches with the one end external diameter of silk 700, matches with sealed cap 410 internal diameter to the other end external diameter of silk 700 realizes being connected sealed cap 410 and three-way pipe 100 smoothly, is convenient for the lectotype of the size structure of dwang 300, sealed cap 410, three-way pipe 100.

In another alternative embodiment, sealing cap 410 is threaded directly at second nozzle 120 of tee 100.

Optionally, as shown in fig. 2, the pipe clamp 600 is a reducing pipe clamp 600, the inner diameter of the other end of the pipe clamp 600 is matched with the outer diameter of one end of the aligning wire 700, and the outer diameter of the other end of the aligning wire 700 is matched with the inner diameter of the sealing cap 410, so that the installation problem of the three-way pipe 100 when the second nozzle 120 is not directly matched with the sealing cap 410 is solved.

Alternatively, the end of the rotating rod 300 close to the drill bit 310 is provided with an anti-dropping snap ring, which can be welded, and the outer diameter of the anti-dropping snap ring is larger than the inner diameter of the opening at the end of the sealing cap 410 far from the tee 100. In the backward movement process of the rotation rod 300 after the dredging, the adverse effect that the rotation rod 300 is separated from the sealing cap 410 due to the internal pressure can be prevented by the anti-dropping snap ring.

Optionally, the drill bit 310 has an outer head circle with a diameter slightly larger than the diameter of the drill rod, and is provided with an undercut edge and a main cutting edge.

Optionally, the inner diameter of the opening at the end of the sealing cap 410 remote from the tee 100 is larger than the diameter of the rotating rod 300 and smaller than the outer diameter of the drill bit 310. The rotating rod 300 passes through the sealing cap 410 and protrudes from an opening at an end of the sealing cap 410 away from the tee 100, which is smaller than the outer diameter of the drill bit 310, further improving the disadvantage that the rotating rod 300 is released from the sealing cap 410 during the backward movement.

Optionally, flange 200 is connected to tee 100 at first port 110 by a quick disconnect 210. As shown in fig. 2, the quick movable joint 210 includes two parts, which are a claw part and a groove part, respectively, the groove part is fixedly connected with the flange 200, the claw part is fixed at the first pipe orifice 110 of the three-way pipe 100, when the pipe blocking pressure dredging device is installed on the blocked branch pipe, the flange 200 is fixedly installed on the blocked branch pipe, and then the claw part is quickly connected with the groove part, so as to realize the quick connection between the three-way pipe 100 and the blocked branch pipe.

As for the quick movable joint 210, there are various implementation schemes, in this embodiment, a combination form of a claw portion and a groove portion as shown in fig. 2 is adopted, the groove portion is provided with an annular groove, a plurality of claws of the claw portion are limited by an elastic member, the claws move to the groove after being opened, and the groove portion is clamped under a reset function of the elastic member, so as to realize the function of the quick movable joint 210.

Optionally, the pressure relief valve 500 is used for quickly connecting a backflushing device to provide a backflushing function, and the backflow device is connected with the pressure relief valve 500.

When the blockage problem of the coal injection distributor is solved, after dredging is completed, the rotating rod 300 is slowly retreated into the three-way pipe 100, the pressure relief valve 500 is opened firstly, hardened coal powder is discharged and then closed, the coal feeding valve is closed, the three-way pipe 100 is detached after the pressure relief valve 500 is opened for pressure relief, and an injection pipeline is recovered.

More, utilize the branch pipe of this embodiment to block up and take pressure pull throughs, will strike the drill replacement and adopt the hand wheel, drive dwang 300 pivoted function piece and adopt the hand wheel, lift off drill bit 310, drive dwang 300 through the hand wheel, can be used to the pipeline mediation of taking pressure such as water, oil, wind.

In another possible embodiment, the dredging mode that the handwheel drives the rotating rod 300 can be replaced by the existing automatic pipe blockage dredging device.

While 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. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the utility model.

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

Claims (10)

1. The utility model provides a pressure pull throughs is blockked up to branch pipe which characterized in that includes:

the three-way pipe comprises a first pipe orifice, a second pipe orifice and a third pipe orifice;

the flange plate is fixed at the first pipe orifice of the three-way pipe and is fixedly connected with one end of a blocking branch pipe, and the blocking branch pipe is provided with an on-off valve;

the rotating rod penetrates through the three-way pipe and is arranged by penetrating through the first pipe orifice and the second pipe orifice, one end of the rotating rod is connected with a drill bit, and the other end of the rotating rod is connected with a functional part so as to drive the rotating rod to rotate;

the sealing element is fixed at the second pipe orifice so as to seal the rotating rod and the three-way pipe; and

and the pressure relief valve is arranged at the third pipe orifice of the three-way pipe.

2. The pressure dredging device for the branch pipe blockage according to claim 1, wherein the sealing element comprises a graphite packing, the graphite packing is provided with a sealing cap, the sealing cap is fixed at the second pipe orifice, the graphite packing is arranged around the rotating rod, and the graphite packing is arranged in the sealing cap.

3. The pipe blockage pressure dredging device of claim 2, wherein the pipe blockage pressure dredging device is further provided with a pipe hoop and a counter screw, the second pipe orifice of the three-way pipe is arranged in an external screw mode, the pipe hoop is installed at the second pipe orifice of the three-way pipe in a threaded mode, one end of the counter screw is connected with the pipe hoop, and the other end of the counter screw is connected with a sealing cap in a threaded mode.

4. The apparatus of claim 3, wherein the pipe clamp is a reducing pipe clamp.

5. The apparatus of claim 1, wherein the rotatable shaft is threadably connected to the drill bit.

6. The pipe blockage pressure dredging device of claim 2, wherein an end of the rotating rod, which is close to the drill bit, is provided with an anti-falling snap ring, and the outer diameter of the anti-falling snap ring is larger than the inner diameter of an opening at one end of the sealing cap, which is far away from the tee pipe.

7. The apparatus of claim 1, wherein the flange is connected to the tee at the first pipe orifice by a quick union.

8. The pipe blockage pressure dredge of claim 2, wherein the inner diameter of the opening at the end of the sealing cap far away from the tee pipe is larger than the diameter of the rotating rod and smaller than the outer diameter of the drill bit.

9. The laterals plugging pressure pull through of claim 1, wherein said function comprises a hammer drill.

10. The pressurized dredging device for the branch pipe blockage according to any one of claims 1-9, wherein the blocked branch pipe is a branch pipe of a coal injection distributor, the on-off valve is a coal feeding stop valve, the coal feeding stop valve is installed at one end of the branch pipe of the coal injection distributor, and the flange plate is connected with the coal feeding stop valve through a flange.

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