CN213835409U - Ash removal device and steelmaking production line - Google Patents

Abstract

The utility model relates to an ash cleaning device and a steelmaking production line, the ash cleaning device comprises a shell and a plurality of ash falling plates for collecting dust in high-temperature flue gas, a flue gas input port and a flue gas output port are respectively arranged on the shell, a holding cavity for holding each ash falling plate and a flue gas conveying channel for conveying high-temperature flue gas are formed in the shell, two ends of the flue gas conveying channel are respectively communicated with a side end face of the holding cavity and the flue gas input port, and the flue gas output port is positioned below the shell and is communicated with the bottom of the holding cavity; each ash falling plate is arranged in the containing cavity from top to bottom in a layered mode, a gap is reserved between every two adjacent ash falling plates, a flat smoke flow channel is formed between every two adjacent ash falling plates, and a plurality of ash leaking holes are formed in each ash falling plate. The utility model provides a not good technical problem of high temperature interval converter flue gas cleaning effect.

Description

Ash removal device and steelmaking production line

Technical Field

The utility model relates to a steelmaking equipment field, it is further, relate to an ash removal device and steelmaking production line, especially relate to an intermittent type formula ash removal device and steelmaking production line that carry out deashing, dust removal to the steelmaking flue in airtight space.

Background

Converter oxygen blowing steelmaking is the main steelmaking form of steel works at present, and is mainly characterized by intermittent periodic operation, wherein the production period of steel in each furnace is generally 40 minutes, and the repeated cyclic operation is carried out. Wherein, during the oxygen blowing in steel making, a great deal of coal gas and dust (containing a great deal of FeO and Fe) can be generated₂O₃And CaO and other alkaline dust with activity and heat release), slag, heat and the like, wherein the temperature of the high-temperature flue gas containing dust can be reduced to about 800 ℃ after passing through the movable smoke hood, the fixed smoke hood and the vaporization cooling flue, and the high-temperature flue gas can be conveyed to subsequent equipment for use after being subjected to dust removal treatment.

The flue gas generated by oxygen blowing steelmaking of the converter has the characteristics of high temperature, large flue gas amount, high dust content, tiny dust particles and the like, and if the flue gas is released, the flue gas can seriously pollute the atmosphere and can cause energy waste; in addition, high-temperature large-particle smoke dust in the smoke is a hidden danger of combustion and explosion, and is not beneficial to safe production operation. The flue gas which can not remove dust efficiently can cause blockage to subsequent equipment or seriously affect the use efficiency of the flue gas, so the flue gas of the converter must be purified.

At present, toThe method for purifying the converter flue gas mainly comprises the following steps: the tail end of the vaporization cooling flue is provided with a spraying or evaporation type direct cooling tower to reduce the temperature of the flue gas to 70 ℃ or below 250 ℃, and the flue gas with high CO content (about 90%) and O content is recycled₂Low content of converter gas. However, if the temperature of the flue gas is reduced to below 70 ℃ by adopting the spray type direct cooling tower, most of the smoke dust can be cleaned while cooling the flue gas, but the problems of unrecovered sensible heat, high water consumption, sewage treatment and the like exist; if the temperature of the flue gas is reduced to be below 250 ℃ by adopting the evaporative direct cooling tower, part of large-particle smoke dust can be separated while the flue gas is cooled, but the problems of unrecovered sensible heat, large steam consumption and the like exist. Therefore, an efficient purification method is urgently needed to achieve a good purification effect on the converter flue gas.

Aiming at the problem of poor purification effect of converter flue gas in a high temperature range (650 ℃ to 800 ℃) in the related technology, no effective solution is provided at present.

Therefore, the inventor provides the ash cleaning device and the steelmaking production line by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ash removal device and steelmaking production line can realize the separation to coarse grain, foam slag and neglected meter level granule in the high temperature flue gas, and is good to the purifying effect of high temperature flue gas, and the ash and slag of separating out after the purification can regard as the raw materials of sintering, and is energy-concerving and environment-protective.

Another object of the utility model is to provide an ash removal device and steelmaking production line, high temperature flue gas can form the plunger stream in ash removal device in purifying process, and is little to the hindering of high temperature flue gas decreases, and the energy consumption is low, guarantees that the circulation of high temperature flue gas is smooth and easy, not only reduces the purification cost to the high temperature flue gas, has eliminated the high temperature flue gas moreover and has detained the explosion hidden danger that causes excessively in ash removal device, guarantees the security of operation.

The purpose of the utility model can be realized by adopting the following technical scheme:

the utility model provides an ash removal device, ash removal device includes the polylith ash falling plate that shell and the dirt ash to collecting in the high temperature flue gas, wherein:

the shell is respectively provided with a flue gas input port connected with a converter steelmaking cooling flue and a flue gas output port connected with a high-temperature flue gas recovery device, an accommodating cavity for accommodating each falling ash and a flue gas conveying channel capable of conveying high-temperature flue gas are formed inside the shell, one end of the flue gas conveying channel is communicated with one side end face of the accommodating cavity, the other end of the flue gas conveying channel is communicated with the flue gas input port, and the flue gas output port is positioned below the shell and is communicated with the bottom of the accommodating cavity;

each dust falling plate is arranged in the accommodating cavity in a layering mode from top to bottom, a gap is reserved between every two adjacent dust falling plates, a smoke flow channel is formed between every two adjacent dust falling plates, and a plurality of dust leakage holes are formed in each dust falling plate.

In a preferred embodiment of the present invention, the flue gas flow channel is flat.

In a preferred embodiment of the present invention, the housing includes a turning section, a flaring transition section, an ash removal section and a dust output section, the turning section is arc-shaped, one end of the turning section is communicated with the flue gas input port, the other end of the turning section is communicated with one end of the flaring transition section, the other end of the flaring transition section is communicated with one side end face of the ash removal section, the cross sectional area of the flaring transition section from the turning section to the ash removal section is gradually increased, and the end of the flaring transition section connected with the ash removal section can cover the whole side end face of the ash removal section in the vertical direction, and the flue gas conveying channel communicated with the inside of the turning section and the flaring transition section is formed;

the dust-removing device comprises a dust-removing section, a dust output section, a containing cavity, a smoke outlet and a smoke outlet, wherein the containing cavity is located inside the dust-removing section, the dust output section is located below the dust-removing section, the top end of the dust-removing section is communicated with the top of the dust output section, the bottom of the dust output section is communicated with the smoke outlet, and the cross section area of the dust output section from the dust-removing section to the smoke outlet is gradually increased.

The utility model discloses an in a preferred embodiment, ash removal device still includes the mounting bracket, the upper portion of mounting bracket is located the top of shell, just the top of mounting bracket is used for being connected with a supporting beam of factory building, the lower part of mounting bracket stretch into to the holding intracavity, each the hawk all is fixed in on the mounting bracket.

In a preferred embodiment of the present invention, the mounting frame includes a horizontal mounting frame and a plurality of vertical mounting rods, the horizontal mounting frame is a rectangular frame structure disposed along a horizontal direction, the horizontal mounting frame is located above the housing, each vertical mounting rod is uniformly arranged below the horizontal mounting frame, a top end of each vertical mounting rod is connected to a bottom of the horizontal mounting frame, a bottom of each vertical mounting rod extends into the accommodating cavity and extends to a position close to a bottom of the accommodating cavity, and each dust falling plate is fixed to each vertical mounting rod;

four apex angle positions in the bottom of horizontal installation frame are provided with the spliced pole along vertical direction respectively, the top of spliced pole with the bottom of horizontal installation frame is connected, the bottom of spliced pole hang in on the supporting beam of factory building.

The utility model discloses an in a preferred embodiment, each the ash falling plate falls ash plate and polylith third ash falling plate including the first ash falling plate of polylith, polylith second that parallel arrangement, the length of first ash falling plate is greater than the length of second ash falling plate, the length that the ash falling plate of second is greater than the length that the ash falling plate of third falls ash plate, each first ash falling plate is close to the edge of flue gas delivery outlet one side, each the ash falling plate of second is close to the edge of flue gas delivery outlet one side and each the ash falling plate of third is close to the edge of flue gas delivery outlet one side is located same vertical plane.

In a preferred embodiment of the present invention, the top of the housing is provided with mounting through holes respectively corresponding to the vertical mounting rods, each vertical mounting rod passes through the corresponding mounting through hole and extends into the receiving cavity, a gap is left between the outer wall of each vertical mounting rod and the inner wall of the corresponding mounting through hole, each vertical mounting rod is connected with the top of the housing through a corresponding liquid seal assembly in a shakable manner to form a liquid seal for the mounting through hole through the liquid seal assembly, and a vibration motor capable of driving the mounting frame and each ash falling plate to shake is provided at the top of the horizontal mounting frame;

the cover is equipped with the spring on the spliced pole, the both ends of spring respectively with the horizontal installation frame with a supporting beam butt of factory building.

In a preferred embodiment of the present invention, the liquid seal assembly includes a first connecting member and a second connecting member, the first connecting member is an annular structure arranged along a horizontal direction, the bottom of the first connecting member is connected to the top of the housing, the middle through hole of the first connecting member is communicated with the installation through hole, the top of the first connecting member is provided with a liquid containing groove along a circumferential direction of the first connecting member, and the liquid containing groove contains liquid;

the second connecting piece is of a cylindrical structure with a sealed top and an open bottom, the second connecting piece is fixedly sleeved on the vertical mounting rod, and the bottom of the second connecting piece is inserted into the liquid in the liquid containing groove from the top of the first connecting piece.

In a preferred embodiment of the present invention, each of the dust falling plates is disposed in the holding cavity, and the smoke conveying passage is disposed in the holding cavity to incline upwards along the direction of the smoke outlet.

The utility model discloses an in a preferred embodiment, the bottom in holding chamber is provided with the bottom plate, even cloth has a plurality of compressed air nozzle on the bottom plate, the outside of shell is provided with the forced draught blower, the supply-air outlet of forced draught blower take over respectively with corresponding through many nozzles compressed air nozzle connects.

In a preferred embodiment of the present invention, the bottom plate is provided with a heat insulating layer inside.

The utility model discloses an in a preferred embodiment, the bottom in holding chamber is provided with the deposition groove, the bottom in deposition groove seted up with the cigarette ash discharge gate that the flue gas delivery outlet is linked together, the bottom plate is by keeping away from the deposition groove is to being close to deposition groove direction downward sloping sets up, just the bottom plate is close to the edge of deposition groove one side with the top edge in deposition groove meets.

In a preferred embodiment of the present invention, the dust collecting groove is provided with a dust feeding assembly inside.

In a preferred embodiment of the present invention, the dust feeding assembly is a plate conveyor or a screw conveyor.

The utility model discloses an in a preferred embodiment, screw conveyor includes screw conveyor pole and drive screw conveyor pole pivoted driving motor, the screw conveyor pole is followed the axial in deposition groove set up in the inside in deposition groove, set up in the heliciform blade on the outer wall of screw conveyor pole, driving motor is located the outside in deposition groove, just driving motor's output shaft with the one end of screw conveyor pole is connected.

The utility model provides a steelmaking production line, steelmaking production line includes converter, high temperature flue gas recovery equipment and foretell ash removal device, be provided with converter steelmaking cooling flue on the converter, the converter passes through converter steelmaking cooling flue with ash removal device's flue gas input port connection, ash removal device's flue gas delivery outlet with high temperature flue gas recovery equipment connects.

From above, the utility model discloses a characteristics and advantage of ash removal device and steelmaking production line are: be formed with the holding chamber in the inside of shell, the inside in holding chamber is provided with the polylith ash falling plate, a plurality of ash leakage holes have all been seted up on each ash falling plate, each ash falling plate is arranged from top to bottom in a layering manner, and leave the clearance between the two adjacent ash falling plates, form the flue gas runner between the two adjacent ash falling plates, so that the high temperature flue gas forms the plunger stream when flowing through the clearance between the two adjacent ash falling plates, reduce the loss of blocking the high temperature flue gas, it is smooth and easy to guarantee the high temperature flue gas circulation, not only can reduce the energy consumption, and eliminated the excessive potential safety hazard that can cause the explosion that is detained to the high temperature flue gas, guarantee safe operation. In addition, the flue gas delivery outlet is positioned below the shell and is communicated with the bottom of the containing cavity, high-temperature flue gas needs to enter the containing cavity through the flue gas delivery inlet and the flue gas conveying channel and then is discharged out of the containing cavity through the flue gas delivery outlet, the high-temperature flue gas needs to pass through the flue gas flow channels formed among the ash falling plates in the whole process, because the high-temperature flue gas is divided into a plurality of layers of flat and thin laminar flow flue gas in each flue gas flow channel, and the specific gravity of solid dust is far higher than that of the gas, the dust falls onto each ash falling plate under the action of the gravity of the dust falls, and leaks onto the ash falling plate of the next layer through the ash leakage holes on the ash falling plate of the previous layer, and finally the collection of the dust is completed, so that the separation purpose of the solid dust in the high-temperature flue gas is achieved, the high-temperature flue gas is ensured to be fully purified, and the separated ash residue can be used as a sintering raw material, thereby saving energy and protecting the environment, is suitable for popularization and application.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1: do the utility model discloses ash removal device's front view cross-sectional view.

FIG. 2: is a three-dimensional view of the ash removing device of the utility model.

FIG. 3: do the utility model discloses ash removal device's left side cut-away view.

FIG. 4: do the utility model discloses the top view of installation frame position among the ash removal device.

FIG. 5: do the utility model discloses the top view of deashing device median septum place position.

FIG. 6: do the utility model discloses the top view of the grey board place position falls among the ash removal device.

FIG. 7: which is a partial enlargement of the position a in fig. 1.

The utility model provides an reference numeral does:

1. a housing; 101. A turning section;

1011. a flue gas input port; 102. A flaring transition section;

103. a deashing section; 1031. An ash accumulation groove;

1032. a cigarette ash discharge hole; 1033. A base plate;

1034. mounting a through hole; 104. A dust output section;

1041. a flue gas outlet; 2. A dust falling plate;

201. a first dust falling plate; 202. A second dust falling plate;

203. a third dust falling plate; 204. Ash leakage holes;

3. an ash conveying assembly; 301. A screw conveying rod;

302. a drive motor; 4. A mounting frame;

401. horizontally installing a frame; 402. A vertical mounting rod;

5. a vibration motor; 6. A liquid seal assembly;

601. a first connecting member; 6011. A liquid containing tank;

602. a second connecting member; 7. Connecting columns;

8. a spring; 9. A compressed air nozzle;

10. a blower; 11. A nozzle adapter;

12. a liquid; 13. An accommodating cavity;

14. flue gas conveying channel.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

Implementation mode one

As shown in fig. 1 to 6, the utility model provides an ash cleaning device, this ash cleaning device include that shell 1 and polylith fall the ash plate 2, and each falls the ash plate 2 and is arranged in collecting the dirt ash (cigarette ash or lime-ash) in the high temperature flue gas, wherein: a flue gas input port 1011 and a flue gas output port 1041 are respectively formed on the shell 1, the flue gas input port 1011 is used for being connected with a converter steelmaking cooling flue, the flue gas output port 1041 is used for being connected with high-temperature flue gas recovery equipment, an accommodating cavity 13 for accommodating each ash falling plate 2 and a flue gas conveying channel 14 capable of conveying high-temperature flue gas are formed inside the shell 1, one end of the flue gas conveying channel 14 is communicated with one side end face of the accommodating cavity 13, the other end of the flue gas conveying channel 14 is communicated with the flue gas input port 1011, the flue gas output port 1041 is positioned below the shell 1 and far away from one side of the flue gas conveying channel 14, and the flue gas output port 1041 is communicated with the bottom of the accommodating cavity 13; each dust falling plate 2 is arranged in the containing cavity 13 from top to bottom in a layered manner, a gap is left between every two adjacent dust falling plates 2, so that a flat smoke flow channel (namely, the distance between every two adjacent dust falling plates 2 is smaller than the width of the dust falling plates 2) is formed between every two adjacent dust falling plates 2, and a plurality of dust leakage holes 204 are formed in each dust falling plate 2, so that dust falling on the upper layer of dust falling plate 2 can be leaked to the lower layer of dust falling plate 2, and the collection of the dust on the lowermost dust falling plate 2 is completed.

The utility model discloses in be formed with holding chamber 13 in the inside of shell 1, the inside at holding chamber 13 is provided with polylith ash board 2 that falls, a plurality of ash holes 204 have all been seted up on each ash board 2 that falls, each ash board 2 that falls is arranged from top to bottom in layers, and form the flue gas runner of platykurtic between two adjacent ash boards 2 that fall, high temperature flue gas can form the plunger stream when flowing through the flue gas runner between two adjacent ash boards 2 that fall, reduce the resistance to high temperature flue gas and decrease, it is smooth and easy to guarantee that high temperature flue gas circulates, not only can reduce the energy consumption, and eliminated the excessive potential safety hazard that can cause the explosion of being detained of high temperature flue gas, guarantee the safety work. In addition, one end of the flue gas conveying channel 14 is communicated with one side end face of the accommodating cavity 13, the other end of the flue gas conveying channel 14 is communicated with the flue gas input port 1011, the flue gas output port 1041 is located below the housing 1 and is communicated with the bottom of the accommodating cavity 13, high-temperature flue gas needs to enter the accommodating cavity 13 through the flue gas input port 1011 and the flue gas conveying channel 14 and then is discharged out of the accommodating cavity through the flue gas output port 1041, in the whole process, the high-temperature flue gas needs to pass through flue gas flow channels formed among the dust falling plates 2, because the high-temperature flue gas is divided into a plurality of layers of flat and thin laminar flow flue gas in each flue gas flow channel, and the specific gravity of solid dust in the high-temperature flue gas is much higher than that of gas, when the high-temperature flue gas flows through the flue gas flow channels, the solid dust falls onto the dust falling plates 2 due to the self gravity, and leaks onto the dust falling plate 2 on the next layer through the dust leakage hole 204 on the dust falling plate 2 on the previous layer, finally, dust is collected, so that the purpose of separating solid dust in the high-temperature flue gas is achieved, the high-temperature flue gas is fully purified, and the separated ash and slag after purification can be used as a sintering raw material, so that the method is energy-saving and environment-friendly, and is suitable for popularization and use.

The utility model discloses in the high temperature flue gas for the converter flue gas that produces among the converter steelmaking process, the temperature range of high temperature flue gas is 650 ℃ to 800 ℃.

In an optional embodiment of the present invention, as shown in fig. 3, each dust falling plate 2 is disposed in the accommodating cavity 13 by inclining upwards from the flue gas conveying channel 14 to the flue gas output port 1041, when dust flows between two adjacent dust falling plates 2, the falling distance is shortened, and the dust can contact with the dust falling plates 2 more quickly, so as to achieve the purpose of collecting dust quickly.

Further, the distance between two adjacent dust falling plates 2 is 60mm to 80mm, the included angle between the dust falling plates 2 and the horizontal direction is larger than the repose angle of dust, and the dust on the dust falling plates 2 can slide along the inclined direction of the dust falling plates 2, fall onto another dust falling plate 2 adjacent to the lower side of the dust falling plates through the dust leaking holes 204 and finally be discharged to the outside of the shell 1.

Further, the included angle between the ash falling plate 2 and the horizontal direction is 5-11 degrees.

In an optional embodiment of the present invention, as shown in fig. 1 to 6, the housing 1 includes a turning section 101, a flaring transition section 102, an ash removal section 103 and a dust output section 104, the turning section 101 is arc-shaped, one end of the turning section 101 is communicated with the flue gas input port 1011, the other end of the turning section 101 is communicated with one end of the flaring transition section 102, the other end of the flaring transition section 102 is communicated with one side end surface of the ash removal section 103, the cross-sectional area of the flaring transition section 102 from the turning section 101 to the ash removal section 103 is gradually increased, and the end of the flaring transition section 102 connected with the ash removal section 103 can cover the whole side end surface of the ash removal section 103 in the vertical direction, a flue gas conveying channel 14 communicated with the interior of the turning section 101 and the flaring transition section 102 is formed, thereby ensuring that the high temperature flue gas passing through the flue gas conveying channel 14 can enter the accommodating cavity 13 through the side end surface of the ash removal section 103, deashing section 103 is the rectangle, and holding chamber 13 is located deashing section 103's inside, dust output section 104 is located deashing section 103's below, the top of deashing section 103 is linked together with dust output section 104's top, dust output section 104's bottom is linked together with flue gas delivery outlet 1041, dust output section 104 is by the cross sectional area crescent of deashing section 103 to flue gas delivery outlet 1041 direction, make high temperature flue gas can and each fall in the clearance between the grey board 2, guarantee the abundant collection to the dust.

In an optional embodiment of the present invention, as shown in fig. 1 and fig. 3 to fig. 5, the ash removing device further includes a mounting frame 4, an upper portion of the mounting frame 4 is located above the housing 1, and a top portion of the mounting frame 4 is used for connecting with a supporting beam of a factory building, a lower portion of the mounting frame 4 extends into the accommodating cavity 13, and each ash falling plate 2 is fixed on the mounting frame 4, and each ash falling plate 2 is fixed by the mounting frame 4.

Specifically, as shown in fig. 1 and fig. 3 to fig. 5, the mounting frame 4 includes a horizontal mounting frame 401 and a plurality of vertical mounting rods 402, the horizontal mounting frame 401 is a rectangular frame structure arranged along the horizontal direction, the horizontal mounting frame 401 is located above the housing 1, the vertical mounting rods 402 are uniformly arranged below the horizontal mounting frame 401, the top end of each vertical mounting rod 402 is connected with the bottom of the horizontal mounting frame 401, the bottom of each vertical mounting rod 402 extends into the accommodating cavity 13 and extends to a position close to the bottom of the accommodating cavity 13, and each soot fall plate 2 is fixed on each vertical mounting rod 402; four apex angle positions in the bottom of horizontal installation frame 401 are provided with spliced pole 7 along vertical direction respectively, and the top of spliced pole 7 is connected with the bottom of horizontal installation frame 401, and the bottom of spliced pole 7 hangs on a supporting beam of factory building.

Further, as shown in fig. 3, each ash falling plate 2 includes a plurality of first ash falling plates 201, a plurality of second ash falling plates 202 and a plurality of third ash falling plates 203 which are arranged in parallel, the length of the first ash falling plates 201 is greater than that of the second ash falling plates 202, the length of the second ash falling plates 202 is greater than that of the third ash falling plates 203, the edge of each first ash falling plate 201 close to one side of the flue gas outlet 1041, the edge of each second ash falling plate 202 close to one side of the flue gas outlet 1041 and the edge of each third ash falling plate 203 close to one side of the flue gas outlet 1041 are located in the same vertical plane. So that the distance between two adjacent ash falling plates 2 along the flowing direction of the high-temperature flue gas is continuously reduced (the distance between two adjacent ash falling plates 2 along the flowing direction of the high-temperature flue gas is the distance between two adjacent first ash falling plates 201, the distance between the adjacent first ash falling plates 201 and the second ash falling plates 202, the distance between the first ash falling plates 201 and the third ash falling plates 203 or the distance between the second ash falling plates 202 and the third ash falling plates 203 in turn), thereby gradually increasing the quantity of laminar flue gas generated after the high-temperature flue gas is separated, when the distance between two adjacent dust falling plates 2 is larger, dust with larger particle size (such as coarse particles or foam slag and the like) can be removed, when the distance between two adjacent dust falling plates 2 is small, dust with small particle size (such as a micron-level particle) can be removed, so that the dust removing precision is gradually improved, and a good dust removing effect is ensured.

Further, the arrangement mode among the first ash falling plates 201, the second ash falling plates 202 and the third ash falling plates 203 is as follows: a second ash falling plate 202 and a first ash falling plate 201 are respectively clamped between a third ash falling plate 203 and another adjacent third ash falling plate 203 which is positioned above the third ash falling plate 203 and another adjacent third ash falling plate 203 which is positioned below the third ash falling plate.

Specifically, the width of each first dust falling plate 201, each second dust falling plate 202 and each third dust falling plate 203 is 4500mm, wherein the length of the first dust falling plate 201 is 1200mm, the length of the second dust falling plate 202 is 800mm, and the length of the third dust falling plate 203 is 400 mm.

Further, as shown in fig. 1, fig. 3, and fig. 4, mounting through holes 1034 communicated with the accommodating cavity 13 are respectively formed in positions of the top of the housing 1 opposite to the vertical mounting rods 402, each vertical mounting rod 402 passes through the corresponding mounting through hole 1034 and extends into the accommodating cavity 13, a gap is left between an outer wall of each vertical mounting rod 402 and an inner wall of the corresponding mounting through hole 1034, and each vertical mounting rod 402 is connected with the top of the housing 1 through the corresponding liquid seal assembly 6 in a wobbling manner, so as to form a liquid seal for the mounting through hole 1034 through the liquid seal assembly 6. Be provided with at the top of horizontal installation frame 401 and drive mounting bracket 4 and each vibrating motor 5 that falls grey board 2 and rock, the cover is equipped with spring 8 on spliced pole 7, spring 8's one end and horizontal installation frame 401's bottom butt, spring 8's one end and the supporting beam's of factory building top butt. Through the setting of spliced pole 7 and spring 8 for mounting bracket 4 is installed on a supporting beam of factory building with the mode of hanging, and the vibration that mounting bracket 4 and each ash board 2 that falls can be free, and takes place the inflation when meetting the high temperature flue gas, can not take place the dead condition of position card between a supporting beam of mounting bracket 4 and factory building.

In an optional embodiment of the present invention, as shown in fig. 1, fig. 3, and fig. 7, the liquid seal assembly 6 includes a first connecting member 601 and a second connecting member 602, the first connecting member 601 is a circular ring structure arranged along the horizontal direction, the bottom of the first connecting member 601 is connected to the top of the housing 1, a middle through hole of the first connecting member 601 is communicated with the installation through hole 1034, a liquid containing groove 6011 is arranged at the top of the first connecting member 601 along the circumferential direction of the first connecting member 601, and the liquid containing groove 6011 contains liquid 12; the second connecting member 602 is a cylindrical structure with a sealed top and an open bottom, the second connecting member 602 is fixedly sleeved on the vertical mounting rod 402, and the bottom of the second connecting member 602 is inserted into the liquid 12 in the liquid containing tank 6011 from the top of the first connecting member 601. Through the setting of liquid seal subassembly 6, can enough reach the requirement that can rock the connection between mounting bracket 4 and the shell 1, can play the effect of liquid seal again, effectively blockade high temperature flue gas and dust in holding chamber 13, avoid untreated high temperature flue gas to flow to the outside.

Further, the liquid 12 in the liquid container 6011 may be, but not limited to, water, and the liquid sealing requirement for the mounting through hole 1034 may be satisfied, and the liquid 12 may be periodically replenished into the liquid container 6011 along with the continuous consumption of the liquid 12 (for example, the water is vaporized during the operation) during the operation.

In an optional embodiment of the present invention, as shown in fig. 3, a bottom plate 1033 is disposed at the bottom of the accommodating chamber 13, the bottom plate 1033 is located below each ash falling plate 2, a plurality of compressed air nozzles 9 are uniformly distributed on the bottom plate 1033, a blower 10 is disposed outside the housing 1, and an air supply outlet of the blower 10 is connected to the corresponding compressed air nozzles 9 through a plurality of nozzle connecting pipes 11. The dust accumulated on the bottom plate 1033 can be fluidized and collected by supplying air to each compressed air nozzle 9 by the blower 10 and controlling the air outlet pressure of each compressed air nozzle 9.

Further, the bottom plate 1033 is provided therein with a heat insulation layer for heat insulation and preservation of high temperature dust and smoke in the accommodating cavity 13, so as to avoid heat loss and damage to external equipment (such as the nozzle connection pipe 11) due to over-high temperature.

Furthermore, the heat insulation layer can be made of, but not limited to, refractory bricks or refractory mortar, so that the requirement of convenient field construction can be met, and the heat insulation layer has good heat insulation effect.

In an optional embodiment of the present invention, as shown in fig. 1, fig. 3 and fig. 6, the bottom of the accommodating chamber 13 is provided with a deposition groove 1031 with an open top along the horizontal direction, the bottom of the deposition groove 1031 is provided with a soot discharge hole 1032 communicated with the flue gas output port 1041, the bottom plate 1033 is arranged by being far away from the deposition groove 1031 to being close to the downward inclination of the deposition groove 1031, and the edge of the bottom plate 1033 close to one side of the deposition groove 1031 meets the edge of the open top of the deposition groove 1031. The dust accumulated on the bottom plate 1033 slides down to the dust collecting groove 1031 along the inclined direction of the bottom plate 1033 to be collected intensively, and is discharged to the subsequent dust processing apparatus through the bottom ash discharge port 1032.

In an optional embodiment of the present invention, as shown in fig. 1 and fig. 3, the inside of the dust collecting tank 1031 is provided with the dust feeding assembly 3, and the dust falling into the dust collecting tank 1031 is concentrated and conveyed to the dust discharging port 1032 through the dust feeding assembly 3, and is discharged to the outside, so as to achieve the purpose of dust removal and ash removal, avoid the problem that the dust accumulation is excessive in the dust collecting tank 1031, and ensure the normal operation of the ash removing device.

Further, the ash conveying assembly 3 may be, but is not limited to, a slat conveyor or a screw conveyor.

Specifically, as shown in fig. 1, the screw conveyor includes a screw conveying rod 301 and a driving motor 302 for driving the screw conveying rod 301 to rotate, the screw conveying rod 301 is rotatably disposed inside the dust deposition tank 1031 along the axial direction of the dust deposition tank 1031, a helical blade is disposed on the outer wall of the screw conveying rod 301, the driving motor 302 is located outside the dust deposition tank 1031, one end of the screw conveying rod 301 extends out of the dust deposition tank 1031 and is connected with an output shaft of the driving motor 302, the driving motor 302 drives the screw conveying rod 301 to rotate, and therefore dust is conveyed through the helical blade on the screw conveying rod 301.

The utility model discloses an ash removal device's working process does: high-temperature flue gas generated by oxygen blowing and steel making sequentially passes through a converter steel making cooling flue, a flue gas input port 1011 of the shell 1 and a flue gas conveying channel 14 enter an accommodating cavity 13 in the shell 1, the high-temperature flue gas is separated by each dust falling plate 2 in the flowing process of the high-temperature flue gas in the accommodating cavity 13 to form multilayer flat and thin laminar flow flue gas, solid dust falls onto each dust falling plate 2 due to the gravity of the solid dust when flowing through a flue gas channel, at the moment, the vibration motor 5 is started to drive the mounting rack 4 and each dust falling plate 2 to synchronously vibrate, so that dust on the dust falling plate 2 on the previous layer leaks onto the dust falling plate 2 on the next layer through each dust leakage hole 204 until finally leaking to the top of the bottom plate 1033, at the moment, the blower 10 is started to blow accumulated dust on the bottom plate 1033 to the dust accumulation groove 1031 through each compressed air nozzle 9 for collection. Collect can control driving motor 302 after a certain amount of dust in deposition groove 1031 and start, discharge from cigarette ash discharge gate 1032 through screw conveyer the dust of collecting and handle in subsequent dust treatment facility, the high temperature flue gas after cleaing away the dust is then handled in discharging to high temperature flue gas recovery plant through flue gas delivery outlet 1041, and then satisfy the demand of below 800 ℃ flue gas sensible heat recovery, the completion carries out high temperature dust removal to the high temperature flue gas that the converter produced and carries out the target of collecting to the dust.

The utility model discloses a deashing device's working method is intermittent type formula operation, and it carries out the deashing at the clearance period of every two stove oxygen-blown steelmaking (i.e. the last stove oxygen-blown steelmaking has been accomplished, and next stove oxygen-blown steelmaking has not yet begun) to the high temperature flue gas and handles, and wind speed and temperature are all lower this moment, are convenient for subside and the collection of dust and dust to and the vibration operation of mounting bracket 4 and each dust board 2 that falls.

The utility model discloses an ash removal device sets up between converter steelmaking cooling flue and high temperature flue gas recovery plant to form inclosed space in the inside of shell 1, outside air can't enter into the inside of shell 1 in the course of the work, can not exert an influence to the composition of high temperature flue gas.

The utility model discloses an ash removal device's characteristics and advantage are:

one, this ash removal device forms the flue gas runner of platykurtic between two adjacent ash plates 2 that fall, and high temperature flue gas can form the plunger stream when flowing through the flue gas runner between two adjacent ash plates 2 that fall, reduces the resistance to high temperature flue gas and decreases, guarantees that high temperature flue gas circulation is smooth and easy, not only can reduce the energy consumption, has eliminated the high temperature flue gas moreover and has excessively detained the potential safety hazard that can cause the explosion, guarantees the safety work.

Two, during the flue gas runner between the adjacent two ash plates 2 that fall of high temperature flue gas flow through in this ash removal device, solid dust falls to each ash plate 2 that falls owing to the action of gravity of self on to fall on leaking the ash plate 2 that falls of lower one deck through the hourglass ash hole 204 on the ash plate 2 of upper story, finally accomplish the collection to the dust, can reach the separation purpose that solid dust goes on in the high temperature flue gas, guarantee the abundant purification to high temperature flue gas, the utility model discloses have good dust removal, deashing effect, can realize the separation to coarse grain, foam particle and the neglect meter level granule in the high temperature flue gas.

The ash cleaning device is arranged between a converter steelmaking cooling flue and high-temperature flue gas recovery equipment, the ash falling plates 2 for removing dust in the high-temperature flue gas are located in a closed space, the outside air cannot enter the shell 1 in the working process, the components of the high-temperature flue gas cannot be generated, ash separated after purification can be used as a sintering raw material, and the ash cleaning device is energy-saving, environment-friendly and suitable for popularization and use.

Second embodiment

The utility model provides a steelmaking production line, this steelmaking production line include converter, high temperature flue gas recovery equipment and foretell ash removal device, are provided with converter steelmaking cooling flue on the converter, and the high temperature exhanst gas outlet of converter is connected with ash removal device's flue gas input port 1011 through converter steelmaking cooling flue, and ash removal device's flue gas delivery outlet 1041 is connected with high temperature flue gas recovery equipment.

The utility model discloses a steelmaking production line's characteristics and advantage are:

this steelmaking production line can collect smoothly the dirt ash in the produced high temperature flue gas of converter, reach the separation purpose that solid dirt ash goes on in the high temperature flue gas, guarantee the abundant purification to the high temperature flue gas, and the ash and slag that separates after the purification can regard as the raw materials of sintering, energy-concerving and environment-protective, ash removal device can reduce the resistance to the high temperature flue gas in collecting the process to the dirt ash moreover, it is smooth and easy to guarantee the circulation of high temperature flue gas, not only can reduce the energy consumption, and eliminated the excessive potential safety hazard that can cause the explosion of high temperature flue gas delay, guarantee the safety work, be suitable for and use widely.

The above description is only exemplary of the present invention, and is not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims (16)

1. The utility model provides a dust cleaning device, its characterized in that, dust cleaning device includes shell (1) and goes on the polylith ash falling plate (2) of collecting to the dust in the high temperature flue gas, wherein:

the converter steelmaking cooling flue is characterized in that a flue gas input port (1011) used for being connected with a converter steelmaking cooling flue and a flue gas output port (1041) used for being connected with high-temperature flue gas recovery equipment are respectively formed in the shell (1), an accommodating cavity (13) for accommodating each ash falling plate (2) and a flue gas conveying channel (14) capable of conveying high-temperature flue gas are formed in the shell (1), one end of the flue gas conveying channel (14) is communicated with one side end face of the accommodating cavity (13), the other end of the flue gas conveying channel (14) is communicated with the flue gas input port (1011), and the flue gas output port (1041) is located below the shell (1) and is communicated with the bottom of the accommodating cavity (13);

each ash falling plate (2) is arranged in the containing cavity (13) from top to bottom in a layered mode, a gap is reserved between every two adjacent ash falling plates (2) so that a flue gas flow channel is formed between every two adjacent ash falling plates (2), and a plurality of ash leakage holes (204) are formed in each ash falling plate (2).

2. The ash removal device of claim 1, wherein the flue gas flow channel is flat.

3. The ash cleaning device according to claim 1, wherein the outer shell (1) comprises a turning section (101), a flared transition section (102), an ash cleaning section (103) and a dust output section (104), the turning section (101) is arc-shaped, one end of the turning section (101) is communicated with the flue gas input port (1011), the other end of the turning section (101) is communicated with one end of the flared transition section (102), the other end of the flared transition section (102) is communicated with one side end face of the ash cleaning section (103), the cross-sectional area of the flared transition section (102) in the direction from the turning section (101) to the ash cleaning section (103) is gradually increased, one end of the flared transition section (102) connected with the ash cleaning section (103) can cover the whole ash cleaning section (103) in the vertical direction, and the flue gas input side end face communicated with the inside of the turning section (101) and the flared transition section (102) is formed A feed channel (14);

the dust collection device is characterized in that the accommodating cavity (13) is located inside the dust removal section (103), the dust output section (104) is located below the dust removal section (103), the top end of the dust removal section (103) is communicated with the top of the dust output section (104), the bottom of the dust output section (104) is communicated with the flue gas outlet (1041), and the cross sectional area of the dust output section (104) in the direction from the dust removal section (103) to the flue gas outlet (1041) is gradually increased.

4. The ash removal device according to claim 1, further comprising a mounting frame (4), wherein the upper part of the mounting frame (4) is located above the outer shell (1), the top of the mounting frame (4) is used for being connected with a supporting beam of a plant, the lower part of the mounting frame (4) extends into the accommodating cavity (13), and each ash falling plate (2) is fixed on the mounting frame (4).

5. The ash removal device according to claim 4, wherein the mounting frame (4) comprises a horizontal mounting frame (401) and a plurality of vertical mounting rods (402), the horizontal mounting frame (401) is a rectangular frame structure arranged along the horizontal direction, the horizontal mounting frame (401) is positioned above the shell (1), the vertical mounting rods (402) are uniformly arranged below the horizontal mounting frame (401), the top end of each vertical mounting rod (402) is connected with the bottom of the horizontal mounting frame (401), the bottom of each vertical mounting rod (402) extends into the accommodating cavity (13) and extends to a position close to the bottom of the accommodating cavity (13), and the ash falling plates (2) are fixed on the vertical mounting rods (402);

four apex angle positions in the bottom of horizontal installation frame (401) are provided with spliced pole (7) along vertical direction respectively, the top of spliced pole (7) with the bottom of horizontal installation frame (401) is connected, the bottom of spliced pole (7) hang in on the supporting beam of factory building.

6. The ash removal device according to claim 5, wherein each ash falling plate (2) comprises a plurality of first ash falling plates (201), a plurality of second ash falling plates (202) and a plurality of third ash falling plates (203) which are arranged in parallel, the length of the first ash falling plates (201) is greater than that of the second ash falling plates (202), the length of the second ash falling plates (202) is greater than that of the third ash falling plates (203), and the edge of each first ash falling plate (201) close to one side of the flue gas output outlet (1041), the edge of each second ash falling plate (202) close to one side of the flue gas output (1041) and the edge of each third ash falling plate (203) close to one side of the flue gas output (1041) are located in the same vertical plane.

7. The ash removal device according to claim 5, wherein the top of the housing (1) is provided with mounting through holes (1034) opposite to the vertical mounting rods (402) and communicated with the accommodating cavity (13), the vertical mounting rods (402) pass through the corresponding mounting through holes (1034) and extend into the accommodating cavity (13), and a gap is reserved between the outer wall of each vertical mounting rod (402) and the inner wall of the corresponding mounting through hole (1034), and each vertical mounting rod (402) is connected with the top of the shell (1) in a swinging way through a corresponding liquid seal assembly (6), to form a liquid seal with the mounting through-hole (1034) by the liquid seal assembly (6), a vibration motor (5) capable of driving the mounting frame (4) and the ash falling plates (2) to shake is arranged at the top of the horizontal mounting frame (401);

the cover is equipped with spring (8) on spliced pole (7), the both ends of spring (8) respectively with horizontal installation frame (401) with the supporting beam butt of factory building.

8. The ash removal device according to claim 7, wherein the liquid seal assembly (6) comprises a first connecting piece (601) and a second connecting piece (602), the first connecting piece (601) is of an annular structure arranged along the horizontal direction, the bottom of the first connecting piece (601) is connected with the top of the housing (1), a middle through hole of the first connecting piece (601) is communicated with the mounting through hole (1034), a liquid containing groove (6011) is arranged at the top of the first connecting piece (601) along the circumferential direction of the first connecting piece (601), and liquid (12) is contained in the liquid containing groove (6011);

the second connecting piece (602) is a cylindrical structure with a sealed top and an open bottom, the second connecting piece (602) is fixedly sleeved on the vertical mounting rod (402), and the bottom of the second connecting piece (602) is inserted into the liquid (12) in the liquid containing tank (6011) from the top of the first connecting piece (601).

9. The ash removal device according to claim 1, wherein each ash falling plate (2) is arranged in the accommodating cavity (13) in an upward inclined manner from the flue gas conveying channel (14) to the flue gas output port (1041).

10. The ash removing device according to claim 9, characterized in that a bottom plate (1033) is arranged at the bottom of the accommodating cavity (13), a plurality of compressed air nozzles (9) are uniformly distributed on the bottom plate (1033), a blower (10) is arranged outside the casing (1), and the air delivery ports of the blower (10) are respectively connected with the corresponding compressed air nozzles (9) through a plurality of nozzle connecting pipes (11).

11. The ash removal device according to claim 10, wherein the bottom plate (1033) is provided with a heat insulating layer inside.

12. The ash removing device according to claim 10, wherein an ash collecting groove (1031) is formed in the bottom of the accommodating chamber (13), an ash discharging hole (1032) communicated with the flue gas outlet (1041) is formed in the bottom of the ash collecting groove (1031), the bottom plate (1033) is inclined downwards in a direction from being far away from the ash collecting groove (1031) to being close to the ash collecting groove (1031), and the edge of one side of the bottom plate (1033) close to the ash collecting groove (1031) is connected with the top edge of the ash collecting groove (1031).

13. The ash removing device according to claim 12, wherein an ash sending component (3) is arranged in the ash depositing tank (1031).

14. The ash removal device according to claim 13, wherein the ash conveying assembly (3) is a plate conveyor or a screw conveyor.

15. The ash cleaning device according to claim 14, wherein the screw conveyor comprises a screw conveying rod (301) and a driving motor (302) for driving the screw conveying rod (301) to rotate, the screw conveying rod (301) is arranged inside the ash deposition groove (1031) along the axial direction of the ash deposition groove (1031), the outer wall of the screw conveying rod (301) is provided with a helical blade, the driving motor (302) is arranged outside the ash deposition groove (1031), and the output shaft of the driving motor (302) is connected with one end of the screw conveying rod (301).

16. A steel-making production line is characterized by comprising a converter, high-temperature flue gas recovery equipment and the ash removal device of any one of claims 1 to 15, wherein a converter steel-making cooling flue is arranged on the converter, the converter is connected with a flue gas input port (1011) of the ash removal device through the converter steel-making cooling flue, and a flue gas output port (1041) of the ash removal device is connected with the high-temperature flue gas recovery equipment.

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