CN214193329U

CN214193329U - Improved movable flue of converter

Info

Publication number: CN214193329U
Application number: CN202022469830.2U
Authority: CN
Inventors: 陶向阳
Original assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Current assignee: Jiangsu Shagang Group Co Ltd; Zhangjiagang Hongchang Steel Plate Co Ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-09-14
Anticipated expiration: 2030-10-30

Abstract

The utility model discloses an improvement converter removes flue, including activity petticoat pipe and cooling tube, the top intercommunication of activity petticoat pipe is provided with fixed flue, the end intercommunication of giving vent to anger of fixed flue is provided with oblique shape flue, cooling tube evenly lays on the lateral wall of fixed flue and oblique shape flue, the intercommunication is provided with two first pipe joints on cooling tube's the lateral wall, two equal threaded connection has pipeline intercommunication mechanism, two on the first pipe joint the free end of pipeline intercommunication mechanism all communicates and is provided with the intercommunication pipeline. The utility model discloses a cooperation between activity petticoat pipe, cooling tube, fixed flue, oblique shape flue, slag discharging pipe and the cowl is used, has realized spraying fire protection coating on converter flue and slag discharging pipe, improves converter flue and the intraductal performance of overlooking of slag discharging, sets up the arc baffle simultaneously, can reduce the degree of wear of baffle.

Description

Improved movable flue of converter

Technical Field

The utility model belongs to the technical field of the metallurgy, especially, relate to an improvement converter removes flue.

Background

In the process of steelmaking of the converter, high-temperature flue gas on the inner wall of the converter needs to be absorbed by the movable flue, and the high-temperature flue gas absorbs a large amount of temperature in the flue of the converter through the cooling water pipe, enters the mechanical air cooler and then enters the dust remover.

Because the steel tapping and slag pouring positions of the movable flue of the converter are frequently baked at high temperature by the converter, the steel tapping and slag pouring positions of the movable flue are thinned to cause water leakage, and meanwhile, because oxygen needs to be introduced into the converter, the flue of the converter needs to be arranged in an inclined shape, so that the high-temperature flue gas of the converter erodes the inclined inner wall of the flue, the outer wall of a cooling water pipe is thinned, and the water leakage phenomenon is caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects of water leakage caused by the thinning of the outer wall of the cooling water pipe in the prior art, and providing an improved converter moving flue.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an improvement converter removes flue, includes activity petticoat pipe and cooling tube, the top intercommunication of activity petticoat pipe is provided with fixed flue, the end intercommunication of giving vent to anger of fixed flue is provided with oblique shape flue, cooling tube evenly lays on the lateral wall of fixed flue and oblique shape flue, the intercommunication is provided with two first pipe joints on cooling tube's the lateral wall, two equal threaded connection has pipeline intercommunication mechanism, two on the first pipe joint the free end of pipeline intercommunication mechanism all communicates and is provided with the intercommunication pipeline, two the free end intercommunication of intercommunication pipeline is provided with same root auxiliary duct, the auxiliary duct is kept away from the one end side fixed mounting of two intercommunication pipelines and is had flue gas buffer gear, fixed mounting has cowl on the inner wall of oblique shape flue, the intercommunication is provided with the pipe of slagging tap on the lateral wall of oblique shape flue.

Preferably, the inner wall of the first pipeline joint is in a T-shaped arrangement, a thread groove is formed in the side wall of the outer ring of the first pipeline joint, and the first pipeline communicating mechanism is in threaded connection with the thread groove.

Preferably, the pipeline intercommunication mechanism includes the second pipe joint that sets up with the intercommunication pipeline intercommunication, the bottom fixed mounting that the second pipe joint has the spacing ring, the spacing ring sets up with the contact of the T type inner wall counterbalance of first pipe joint, the overhead slip cap of second pipe joint is equipped with the internal thread pipe, internal thread pipe and thread groove threaded connection.

Preferably, the communication pipeline comprises a long communication pipeline and a short communication pipeline, and the long communication pipeline and the short communication pipeline are both communicated with the second pipeline joint.

Preferably, flue gas buffer gear locates the semicircle board on the auxiliary pipeline including fixed cover, set up a plurality of semicircle grooves that are evenly distributed on the outer lane lateral wall of semicircle board, the semicircle groove is the slope setting.

Preferably, the inner walls of the movable smoke hood, the fixed flue, the inclined flue and the slag discharging pipe are all sprayed with fireproof paint.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a cooperation between activity petticoat pipe, cooling tube, fixed flue, oblique shape flue, slag discharging pipe and the cowl is used, has realized spraying fire protection coating on converter flue and slag discharging pipe, improves converter flue and the intraductal performance of overlooking of slag discharging, sets up the arc baffle simultaneously, can reduce the degree of wear of baffle.

2. The utility model discloses a cooperation between cooling tube, intercommunication pipeline, long intercommunication pipeline, short intercommunication pipeline, auxiliary conduit, pipeline intercommunication mechanism and the flue gas buffer gear is used, has realized through setting up height form auxiliary conduit, uses the condition that reduces condenser tube's wearing and tearing, and auxiliary conduit is convenient for change simultaneously, through setting up the semicircle board, realizes reducing the condition of auxiliary conduit wearing and tearing to and the purpose of flue gas buffering can be realized to the semicircle groove.

Drawings

Fig. 1 is a schematic front perspective structural view of a modified converter moving flue provided by the present invention;

FIG. 2 is a schematic view of a cross-sectional structure of a fixed flue in a movable flue of an improved converter according to the present invention;

FIG. 3 is a schematic cross-sectional view of a cooling duct and an auxiliary duct in a moving flue of an improved converter according to the present invention;

FIG. 4 is a schematic view of a front perspective structure of a pipe communicating mechanism in a moving flue of an improved converter according to the present invention;

fig. 5 is a partial enlarged view of a portion a in fig. 4.

In the figure: the movable smoke hood comprises a movable smoke hood body 1, a cooling pipeline body 2, a fixed flue body 3, an inclined flue body 4, a first pipeline joint 5, a communicating pipeline 6, a long communicating pipeline 610, a short communicating pipeline 620, an auxiliary pipeline 7, an arc-shaped baffle plate 8, a slag discharging pipe 9, a threaded groove 10, a second pipeline joint 11, a limiting ring 12, an internal threaded pipe 13, a semicircular plate 14 and a semicircular groove 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-5, an improved converter moving flue comprises a movable smoke hood 1 and a cooling pipeline 2, wherein the top of the movable smoke hood 1 is communicated with a fixed flue 3, the air outlet end of the fixed flue 3 is communicated with an inclined flue 4, the cooling pipeline 2 is uniformly laid on the side walls of the fixed flue 3 and the inclined flue 4, the side wall of the cooling pipeline 2 is communicated with two first pipeline joints 5, pipeline communicating mechanisms are respectively connected to the two first pipeline joints 5 through threads, the free ends of the two pipeline communicating mechanisms are respectively communicated with a communicating pipeline 6, wherein each communicating pipeline 6 comprises a long communicating pipeline 610 and a short communicating pipeline 620, the long communicating pipeline 610 and the short communicating pipeline 620 are respectively communicated with a second pipeline joint 11, specifically, the adjacent two auxiliary pipelines 7 are arranged at high and low levels through the arrangement of the long communicating pipeline 610 and the short communicating pipeline 620, the buffer effect on the high-temperature flue gas can be realized, and the auxiliary pipeline 7 is mainly arranged on the side surface of the inclined flue 4 impacted with the high-temperature flue gas.

The free end intercommunication of two communicating pipe 6 is provided with same root auxiliary duct 7, the one end side fixed mounting that two communicating pipe 6 were kept away from to auxiliary duct 7 has flue gas buffer gear, fixed mounting has cowl 8 on the inner wall of oblique shape flue 4, the intercommunication is provided with slag discharging pipe 9 on the lateral wall of oblique shape flue 4, wherein, activity petticoat pipe 1, fixed flue 3, all spray on the inner wall of oblique shape flue 4 and slag discharging pipe 9 has fire retardant coating, specific through setting up fire retardant coating, a service life for improving converter flue and slag discharging pipe 9.

Wherein, the inner wall of first pipe joint 5 is the T type setting, thread groove 10 has been seted up on the outer lane lateral wall of first pipe joint 5, first pipeline feed mechanism and 10 threaded connection in thread groove, it is further, pipeline feed mechanism includes the second pipe joint 11 that sets up with the intercommunication pipeline 6 intercommunication, the bottom fixed mounting of second pipe joint 11 has spacing ring 12, spacing ring 12 sets up with the T type inner wall counterbalance contact of first pipe joint 5, sliding sleeve is equipped with internal thread pipe 13 on the second pipe joint 11,

internal thread pipe

13 and 10 threaded connection in thread groove.

It should be noted that, when the auxiliary conduit 7 is seriously worn, the internal threaded pipe 13 is rotated to remove the internal threaded pipe 13 from the first conduit joint 5, so as to achieve the purpose of releasing the fixing of the second conduit joint 11, and thus, the auxiliary conduit 7 can be taken out and replaced with a new auxiliary conduit 7, which is convenient for installation and disassembly.

Wherein, flue gas buffer gear locates the semicircle board 14 on the auxiliary pipeline 7 including fixed cover, has seted up a plurality of semicircle grooves 15 that are evenly distributed on the outer lane lateral wall of semicircle board 14, and semicircle groove 15 is the slope setting.

It should be noted that the semicircular grooves 15 are parallel to the rising direction of the high-temperature flue gas, so that part of the high-temperature flue gas can be distributed into the semicircular grooves 15, the purpose of uniform distribution is achieved while buffering is achieved, the anti-scouring capability of the cooling pipeline 2 is improved, the semicircular plate 14 is arranged on the auxiliary pipeline 7, the anti-scouring capability of the contact surface of the auxiliary pipeline 7 and the high-temperature flue gas is improved, and the service life of the auxiliary pipeline 7 is prolonged.

The utility model discloses in, the second pipe joint 11, the intercommunication pipeline 6 sets up with the integration of auxiliary conduit 7, internal thread pipe 13 is established to the slip cap on connecting tube 6, insert in the first pipe joint 5 through the spacing ring 12 with on the second pipe joint 11, be connected internal thread pipe 13 and first pipe joint 5, can realize the installation purpose of auxiliary conduit 7, because meeting in the cooling tube 2 is in mobile state, through setting up two intercommunication pipelines 6, realize that the water in the auxiliary conduit 7 also is in mobile state, auxiliary conduit 7 can play the area of contact of increase and high temperature flue gas, can improve the antiscour ability of cooling tube 2 simultaneously.

Further, at semicircle board 14 that auxiliary line 7 and the one side setting that the high temperature flue gas assaulted for improve auxiliary line 7's scour resistance, prolong auxiliary line 7's life, set up a plurality of semicircle grooves 15 simultaneously on semicircle board 14, thereby can play the effect of buffering to the high temperature flue gas, make the high temperature flue gas flow even, further improve cooling pipeline 2's scour resistance.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An improved movable flue of a converter comprises a movable smoke hood (1) and a cooling pipeline (2), and is characterized in that the top of the movable smoke hood (1) is communicated with a fixed flue (3), the air outlet end of the fixed flue (3) is communicated with an oblique flue (4), the cooling pipeline (2) is uniformly laid on the side walls of the fixed flue (3) and the oblique flue (4), the side wall of the cooling pipeline (2) is communicated with two first pipeline connectors (5), the first pipeline connectors (5) are in threaded connection with pipeline communicating mechanisms, the free ends of the pipeline communicating mechanisms are communicated with communicating pipelines (6), the free ends of the communicating pipelines (6) are communicated with one auxiliary pipeline (7), and a smoke buffer mechanism is fixedly arranged on the side surface of one end of the auxiliary pipeline (7) far away from the two communicating pipelines (6), arc-shaped baffle plates (8) are fixedly mounted on the inner wall of the inclined flue (4), and a slag discharging pipe (9) is communicated with the side wall of the inclined flue (4).

2. An improved converter moving flue according to claim 1, wherein the inner wall of the first pipe joint (5) is arranged in a T shape, a threaded groove (10) is formed in the outer ring side wall of the first pipe joint (5), and the first pipe communicating mechanism is in threaded connection with the threaded groove (10).

3. An improved converter moving flue according to claim 2, wherein the pipeline communicating mechanism comprises a second pipeline joint (11) communicated with the communicating pipeline (6), a limiting ring (12) is fixedly mounted at the bottom of the second pipeline joint (11), the limiting ring (12) is arranged in contact with the inner wall of the T-shaped channel of the first pipeline joint (5), an internal threaded pipe (13) is slidably sleeved on the second pipeline joint (11), and the internal threaded pipe (13) is in threaded connection with the threaded groove (10).

4. An improved moving flue for converter according to claim 3, characterized in that said connecting duct (6) comprises a long connecting duct (610) and a short connecting duct (620), said long connecting duct (610) and said short connecting duct (620) are both connected to the second duct joint (11).

5. The improved moving flue of the converter as claimed in claim 1, wherein the flue gas buffering mechanism comprises a semicircular plate (14) fixedly sleeved on the auxiliary pipe (7), a plurality of semicircular grooves (15) are uniformly distributed on the outer side wall of the semicircular plate (14), and the semicircular grooves (15) are obliquely arranged.

6. An improved movable flue of a converter according to claim 1, characterized in that the inner walls of the movable smoke hood (1), the fixed smoke hood (3), the inclined smoke hood (4) and the slag discharging pipe (9) are all coated with fireproof paint.