CN218741090U

CN218741090U - Dust collector of steelmaking converter

Info

Publication number: CN218741090U
Application number: CN202222942575.8U
Authority: CN
Inventors: 范小娇; 宋长利; 刘志菲
Original assignee: Lingyuan Iron and Steel Co Ltd
Current assignee: Lingyuan Iron and Steel Co Ltd
Priority date: 2022-11-05
Filing date: 2022-11-05
Publication date: 2023-03-28
Anticipated expiration: 2032-11-05

Abstract

The utility model relates to a dust collector of steelmaking converter, including the sack cleaner body, the sack cleaner body is provided with two, two be equipped with supplementary dust collector and connecting device between the sack cleaner body, connecting device includes first connecting pipe and panel turnover mechanism, panel turnover mechanism includes second connecting pipe, rotatory handle, rotation axis and rotor plate, and the fixed cover of rotor plate is established outside the rotation axis, the utility model discloses in be provided with two sack cleaner bodies, and two sack cleaner bodies pass through connecting device and same spray column intercommunication, and under normal condition, spray column exhaust air removes dust through two sack cleaner bodies, improves dust collection efficiency, and when one of them sack cleaner body damaged, closes the panel turnover mechanism who connects on this sack cleaner body, removes dust through another sack cleaner body, need not to shut down and maintains.

Description

Dust collector of steelmaking converter

Technical Field

The utility model relates to a dust collector technical field specifically is a dust collector of steelmaking converter.

Background

When the converter is used for steelmaking, high-temperature flue gas in the converter generally enters a heat exchanger or a cooling device through a vaporization cooling channel for heat exchange and cooling, the temperature of the flue gas is reduced, the flue gas and the coal gas after cooling are introduced into a dust removal device for dust removal, and the coal gas after dust and large particles are removed is recycled after the dust removal is finished. The existing dust removing device is generally provided with a plurality of dust removing bags in a single dust removing box for removing dust, but when the dust removing bags in the dust removing box need to be replaced, the dust removing box needs to be closed to admit air, the dust removing boxes can be opened to be replaced after the temperature in the dust removing boxes is cooled to a certain temperature, high-temperature flue gas in a converter at the moment can not be smoothly discharged, the pressure in the converter is increased, if the converter does not stop running at the moment, the pressure can be gradually increased until the joint of the converter leaks or even explodes, if the converter stops running, the shutdown time is longer when the dust removing boxes are gradually cooled, the normal running of the converter is influenced, the steel making failure can be caused, and raw materials are lost. In addition, when more dust adheres to the outside of the dust bag, the pulse back flushing device in the dust collection device starts the blowback gas, blow off the dust on the dust bag, the current dust collection device generally only removes dust once through the dust bag to the flue gas, most dust can adhere outside the dust bag in the flue gas, the frequency that the pulse back flushing device starts is more, the more frequency of dust bag vibration also can reduce its life, and the pulse back flushing device is when carrying out the blowback gas, also can not shake all the dust on the dust bag and fall, the dust on the dust bag can be more and more, the dust bag is changed until needs, consequently, only carry out the dust removal to the flue gas through the dust bag, the change frequency that can make the dust bag increases.

SUMMERY OF THE UTILITY MODEL

To the problems existing in the prior art, the utility model provides a dust removal device of a steel converter to solve the technical problem mentioned in the background technology.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a dust collector of steelmaking converter, includes the sack cleaner body, the sack cleaner body is provided with two, two be equipped with supplementary dust collector and connecting device between the sack cleaner body, connecting device includes first connecting pipe and panel turnover mechanism, panel turnover mechanism includes second connecting pipe, rotatory handle, rotation axis and rotor plate, and the fixed cover of rotor plate is established outside the rotation axis, and the rotor plate rotates and sets up in the second connecting pipe, and the both ends of rotation axis all rotate with the second connecting pipe and connect, and the one end of rotation axis runs through the second connecting pipe and is connected with rotatory handle, and the below of sack cleaner body is equipped with first intake pipe, the both ends of second connecting pipe respectively with first connecting pipe and first intake-tube connection, panel turnover mechanism is provided with two sets ofly, and is connected with the both ends of first connecting pipe respectively, and two sets of panel turnover mechanism respectively with two this body coupling of sack cleaner, be equipped with supplementary maintenance device on the sack cleaner body.

Preferably, supplementary dust collector includes spray column and annular spray pipe, the lower surface of annular spray pipe is equipped with the shower nozzle, the both ends of annular spray pipe are equipped with inlet tube and outlet pipe respectively, inlet tube and outlet pipe all run through the spray column and are connected with the spray column, the top of spray column is equipped with first outlet duct, the bottom of spray column is equipped with the blow off pipe, one side that the spray column is close to the bottom is equipped with the second intake pipe, gas after the cooling of external heat exchanger enters into earlier and carries out preliminary dust removal in supplementary dust collector, get rid of the large granule dust in the gas, reduce the dust content in the gas, improve the life of sack cleaner body, reduce the number of times of changing this internal filter bag of sack cleaner.

It is further preferred that the auxiliary overhaul device comprises an overhaul platform, a climbing ladder, a first protective guard and a second protective guard, wherein the overhaul platform is arranged outside the bag-type dust remover body, the climbing ladder is arranged on one side of the overhaul platform, the first protective guard is arranged on the upper surface of the overhaul platform, the second protective guard is arranged on the outer side of the climbing ladder, and when the bag-type dust remover body needs to be overhauled or a filter bag in the bag-type dust remover body needs to be replaced above the overhaul platform, the overhaul platform is convenient for overhaul personnel.

Further preferred is, the lower surface of overhauing the platform is equipped with first connecting seat, is equipped with the second connecting seat on the sack cleaner body, is equipped with the stiffener between first connecting seat and the second connecting seat, and the below of overhauing the platform is provided with the stiffener, improves the weighing capacity of overhauing the platform, improves the security.

Further preferably, the lateral wall of spray tower is equipped with spacing platform, and the lower surface of spacing platform is equipped with the backup pad, and the lower surface of backup pad is equipped with the supporting leg, is convenient for support the spray tower.

Further preferably, the annular spraying pipes are arranged in two, and the two annular spraying pipes are arranged in the spraying tower and are positioned between the second air inlet pipe and the first air outlet pipe, so that the spraying efficiency is convenient to improve.

Further preferably, one side of first intake pipe is equipped with the third intake pipe, is equipped with one-way admission valve on the third intake pipe, and when closing panel turnover mechanism, it is internal to let in clean air to the sack cleaner through one-way admission valve, is convenient for with the internal air exhaust that contains the dust of sack cleaner.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. the utility model is provided with two bag-type dust remover bodies which are communicated with the same spray tower through a connecting device, and under normal conditions, the air exhausted by the spray tower removes dust through the two bag-type dust remover bodies, thereby improving the dust removal efficiency;

2. in the utility model, the gas cooled by the external heat exchanger firstly enters the auxiliary dust removing device for preliminary dust removal, large-particle dust in the gas is removed, the dust content in the gas is reduced, the service life of the bag-type dust remover body is prolonged, and the times of replacing the filter bag in the bag-type dust remover body are reduced;

3. the utility model discloses in be provided with supplementary maintenance device on the sack cleaner body, when needs overhaul the sack cleaner body, perhaps need be when the top is changed this internal filter bag of sack cleaner, the easy access maintenance personnel scrambles, and the below of overhauing the platform is provided with the stiffener, improves the weighing capacity of overhauing the platform, improves the security.

Drawings

FIG. 1 is a schematic view of the overall structure of a dust removing device of a steel converter according to the present invention;

fig. 2 is a schematic structural view of the connecting device of the present invention;

FIG. 3 is a schematic structural view of the middle ring-shaped shower pipe of the present invention;

fig. 4 is a schematic structural view of the middle flap mechanism of the present invention;

fig. 5 is the structure schematic diagram of the middle bag-type dust collector body and the auxiliary maintenance mechanism of the utility model.

In the figure: 1. a bag-type dust collector body; 2. a first connecting pipe; 3. a second connecting pipe; 4. rotating the handle; 5. a rotating shaft; 6. a rotating plate; 7. a first intake pipe; 8. a spray tower; 9. an annular shower pipe; 10. a spray head; 11. a water inlet pipe; 12. a water outlet pipe; 13. a first air outlet pipe; 14. a blow-off pipe; 15. a second intake pipe; 16. overhauling the platform; 17. climbing a ladder; 18. a first guard rail; 19. a second guard rail; 20. a first connecting seat; 21. a second connecting seat; 22. a reinforcing bar; 23. a limiting table; 24. a support plate; 25. supporting legs; 26. a third intake pipe; 27. a one-way intake valve.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, a dust removing apparatus for a steel converter includes two bag-type dust remover bodies 1, two bag-type dust remover bodies 1 are provided, an auxiliary dust removing apparatus and a connecting apparatus are provided between the two bag-type dust remover bodies 1, the connecting apparatus includes a first connecting pipe 2 and a flap mechanism, the flap mechanism includes a second connecting pipe 3, a rotating handle 4, a rotating shaft 5 and a rotating plate 6, the rotating plate 6 is fixedly sleeved outside the rotating shaft 5, the rotating plate 6 is rotatably provided in the second connecting pipe 3, two ends of the rotating shaft 5 are rotatably connected to the second connecting pipe 3, one end of the rotating shaft 5 penetrates through the second connecting pipe 3 and is connected to the rotating handle 4, a first air inlet pipe 7 is provided below the bag-type dust remover bodies 1, two ends of the second connecting pipe 3 are respectively connected to the first connecting pipe 2 and the first air inlet pipe 7, the flap mechanism is provided with two sets which are respectively connected to two ends of the first connecting pipe 2, and the two sets of flap mechanism are respectively connected to the two bag-type dust remover bodies 1, and an auxiliary maintenance apparatus is provided on the bag-type dust remover body 1.

Referring to fig. 1-5, the auxiliary dust removing device includes a spray tower 8 and an annular spray pipe 9, a nozzle 10 is disposed on the lower surface of the annular spray pipe 9, a water inlet pipe 11 and a water outlet pipe 12 are respectively disposed at two ends of the annular spray pipe 9, the water inlet pipe 11 and the water outlet pipe 12 both penetrate through the spray tower 8 and are connected with the spray tower 8, a first air outlet pipe 13 is disposed at the top of the spray tower 8, a sewage discharge pipe 14 is disposed at the bottom of the spray tower 8, and a second air inlet pipe 15 is disposed at one side of the spray tower 8 close to the bottom. The number of the annular spraying pipes 9 is two, and the two annular spraying pipes 9 are arranged in the spraying tower 8 and are positioned between the second air inlet pipe 15 and the first air outlet pipe 13. When using, second intake pipe 15 and external heat exchanger are connected, high temperature gas in the converter enters into second intake pipe 15 after passing through vaporization cooling channel and heat exchanger heat transfer, finally enter into spray column 8 in, cooling liquid enters into annular shower 9 through the intake pipe in, lower the temperature to gas through the blowout of annular shower 9, and be stained with moisture on the great particulate matter of volume in the gas, improve its weight, move down in blow off pipe 14 under the effect of its self weight, blow off pipe 14 and external sewage collection department sealing connection, the gas that has not removed dust can't discharge to the outside air through blow off pipe 14.

Referring to fig. 1 to 5, the auxiliary maintenance device includes a maintenance platform 16, a climbing ladder 17, a first guard rail 18 and a second guard rail 19, the maintenance platform 16 is disposed outside the bag-type dust collector body 1, the climbing ladder 17 is disposed at one side of the maintenance platform 16, the first guard rail 18 is disposed on the upper surface of the maintenance platform 16, and the second guard rail 19 is disposed at the outside of the climbing ladder 17. The lower surface of the maintenance platform 16 is provided with a first connecting seat 20, the bag-type dust collector body 1 is provided with a second connecting seat 21, and a reinforcing rod 22 is arranged between the first connecting seat 20 and the second connecting seat 21. When the bag-type dust collector is used, the maintenance platform 16 is reinforced through the reinforcing rods 22, the bearing capacity of the bag-type dust collector is improved, a maintenance worker climbs the maintenance platform 16 through the climbing ladder 17 to maintain the bag-type dust collector body 1, the maintenance worker is protected when climbing through the second protective guard 19, and when the maintenance worker maintains on the maintenance platform 16, the maintenance worker is protected through the first protective guard 18 and prevented from falling to the ground from the maintenance platform 16.

Referring to fig. 1-5, the side wall of the spray tower 8 is provided with a limiting table 23, the lower surface of the limiting table 23 is provided with a supporting plate 24, and the lower surface of the supporting plate 24 is provided with supporting legs 25. In use, the support plate 24 is supported on the ground by the support legs 25, the limit table 23 is placed on the support plate 24, and the spray tower 8 is supported by the support legs 25 and the support plate 24.

Referring to fig. 1-5, a third air inlet pipe 26 is disposed at one side of the first air inlet pipe 7, and a one-way air inlet valve 27 is disposed on the third air inlet pipe 26. When using, one-way admission valve 27 and external clean air supply intercommunication, when sack cleaner body 1 that this first intake pipe 7 is connected need overhaul or need change the filter bag when, turn over the board mechanism on this first intake pipe 7 and close, make the gas of taking the dust stop to enter into in first intake pipe 7, can remain the gas that the part does not discharge in this moment sack cleaner body 1, if directly open sack cleaner body 1, this moment this part is not through filterable gas can directly discharge in the air, consequently after closing the board mechanism of turning over, open one-way admission valve 27, make the air in the clean air supply enter into the sack cleaner smoothly, the sack cleaner continues to operate a period, air that persists in the sack cleaner is clean gas, it stops to inwards admit air to close one-way admission valve 27 this moment, open sack cleaner body 1 and overhauls or change the filter bag.

Example 2:

in conclusion, when the dust collector is used, the second air inlet pipe 15 is connected with an external heat exchanger, high-temperature gas in the converter enters the second air inlet pipe 15 after heat exchange through the vaporization cooling channel and the heat exchanger, and finally enters the spray tower 8, cooling liquid enters the annular spray pipe 9 through the air inlet pipe, the gas is cooled through spraying of the annular spray pipe 9, moisture adheres to particles with large volume in the gas, the weight of the gas is improved, the gas moves downwards into the discharge pipe 14 under the action of the weight of the gas, the discharge pipe 14 is hermetically connected with an external sewage collecting part, the gas which is not subjected to dust removal cannot be discharged into external air through the discharge pipe 14, the gas after temperature reduction and primary dust removal enters the first connecting pipe 2 through the first air outlet pipe 13, at the moment, the plate turnover mechanisms on two sides of the first connecting pipe 2 are both in an open state, the gas can respectively enter the two second connecting pipes 3 through two ends of the first connecting pipe 2, and then enters the two bag dust remover bodies 1 through the second connecting pipes 3 for dust removal, and is discharged from the bag remover bodies 1 after dust removal.

Example 3:

in conclusion, when the bag-type dust collector is used, the maintenance platform 16 is reinforced through the reinforcing rod 22 to improve the bearing capacity of the maintenance platform, a maintenance worker climbs the maintenance platform 16 through the climbing ladder 17 to maintain the bag-type dust collector body 1, the maintenance worker climbs through the second protective guard 19 to protect the maintenance worker, when the maintenance worker maintains the maintenance platform 16, the maintenance worker is protected through the first protective guard 18 to prevent the maintenance worker from falling from the maintenance platform 16 to the ground, the one-way air inlet valve 27 is communicated with an external clean air source, when the bag-type dust collector body 1 connected with the first air inlet pipe 7 needs to be maintained or needs to replace a filter bag, the rotating handle 4 in the flap mechanism connected with the first air inlet pipe 7 is rotated to drive the rotating shaft 5 to rotate, the rotating plate 6 is driven to rotate to a closed state, the air with dust stops entering the first air inlet pipe 7, at the moment, part of the gas which is not discharged in the bag-type dust collector body 1 can remain, if the bag-type dust collector body 1 is directly opened, the part of the gas which does not pass through the filtering can directly discharge into the air into the clean air inlet valve, and the bag-type dust collector body can be smoothly discharged into the air inlet valve, and the bag-type dust collector can be smoothly discharged into the bag-type dust collector, and the bag-type dust collector, at the one-type dust collector can be smoothly discharged into the air inlet valve 27, and the one-inlet valve can be maintained or the clean air inlet valve can be continuously maintained in the maintenance worker can be continuously maintained or the maintenance worker can be continuously discharged into the bag-type dust collector body for a period of the maintenance work.

In all the above-mentioned embodiments, the connection between two components may be selected from welding, bolt and nut fit connection, bolt or screw connection or other known connection methods according to actual situations, which are not repeated herein, and it is preferable to consider welding in the above description, although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The utility model provides a dust collector of steelmaking converter, includes sack cleaner body (1), its characterized in that: the bag-type dust collector comprises a bag-type dust collector body (1), and is characterized in that two bag-type dust collector bodies (1) are arranged between the bag-type dust collector bodies (1) and are provided with an auxiliary dust removal device and a connecting device, the connecting device comprises a first connecting pipe (2) and a plate turning mechanism, the plate turning mechanism comprises a second connecting pipe (3), a rotating handle (4), a rotating shaft (5) and a rotating plate (6), the rotating plate (6) is fixedly sleeved outside the rotating shaft (5), the rotating plate (6) is rotatably arranged in the second connecting pipe (3), the two ends of the rotating shaft (5) are rotatably connected with the second connecting pipe (3), one end of the rotating shaft (5) penetrates through the second connecting pipe (3) and is connected with the rotating handle (4), a first air inlet pipe (7) is arranged below the bag-type dust collector body (1), the two ends of the second connecting pipe (3) are respectively connected with the first connecting pipe (2) and the first air inlet pipe (7), the plate turning mechanism is provided with two sets and is respectively connected with the two ends of the bag-type dust collector bodies (1), and the auxiliary dust collector body (1) is provided with the auxiliary dust collection device.

2. The dust removing device of the steelmaking converter as claimed in claim 1, wherein: auxiliary dust collector includes spray column (8) and annular spray pipe (9), the lower surface of annular spray pipe (9) is equipped with shower nozzle (10), and the both ends of annular spray pipe (9) are equipped with inlet tube (11) and outlet pipe (12) respectively, and inlet tube (11) and outlet pipe (12) all run through spray column (8) and are connected with spray column (8), and the top of spray column (8) is equipped with first outlet duct (13), and the bottom of spray column (8) is equipped with blow off pipe (14), and one side that spray column (8) are close to the bottom is equipped with second intake pipe (15).

3. The dust removing device of the steelmaking converter as claimed in claim 1, wherein: the auxiliary maintenance device comprises a maintenance platform (16), a climbing ladder (17), a first protective guard (18) and a second protective guard (19), wherein the maintenance platform (16) is arranged outside the bag-type dust collector body (1), the climbing ladder (17) is arranged on one side of the maintenance platform (16), the first protective guard (18) is arranged on the upper surface of the maintenance platform (16), and the second protective guard (19) is arranged on the outer side of the climbing ladder (17).

4. The dust removing device of the steelmaking converter as claimed in claim 3, wherein: the lower surface of the maintenance platform (16) is provided with a first connecting seat (20), the bag-type dust collector body (1) is provided with a second connecting seat (21), and a reinforcing rod (22) is arranged between the first connecting seat (20) and the second connecting seat (21).

5. The dust removing device for a steelmaking converter according to claim 2, wherein: the lateral wall of spray tower (8) is equipped with spacing platform (23), and the lower surface of spacing platform (23) is equipped with backup pad (24), and the lower surface of backup pad (24) is equipped with supporting leg (25).

6. The dust removing device for a steelmaking converter according to claim 2, wherein: the annular spraying pipes (9) are arranged in two, and the two annular spraying pipes (9) are arranged in the spraying tower (8) and are positioned between the second air inlet pipe (15) and the first air outlet pipe (13).

7. The dust removing device of the steelmaking converter as claimed in claim 1, wherein: and a third air inlet pipe (26) is arranged on one side of the first air inlet pipe (7), and a one-way air inlet valve (27) is arranged on the third air inlet pipe (26).