CN114534387B - Blast furnace flue gas dust removal device - Google Patents
Blast furnace flue gas dust removal device Download PDFInfo
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- CN114534387B CN114534387B CN202210114850.9A CN202210114850A CN114534387B CN 114534387 B CN114534387 B CN 114534387B CN 202210114850 A CN202210114850 A CN 202210114850A CN 114534387 B CN114534387 B CN 114534387B
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- positioning plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/023—Pockets filters, i.e. multiple bag filters mounted on a common frame
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
- B01D46/44—Auxiliary equipment or operation thereof controlling filtration
- B01D46/444—Auxiliary equipment or operation thereof controlling filtration by flow measuring
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Chemical Kinetics & Catalysis (AREA)
- Blast Furnaces (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention relates to the technical field of environment-friendly equipment for iron-making blast furnace production, in particular to a dust removal device for blast furnace flue gas. A blast furnace flue gas dust removal device comprises a dust removal box, an exhaust box and a blast furnace dust removal part. The blast furnace dust removing part comprises a first positioning plate, a plurality of cloth bags, a plurality of air blowing pipes, a first air supply pipeline, a plurality of third connecting rods and a plurality of gear assemblies. A plurality of first ventilation holes are formed in the first positioning plate. Each cloth bag is arranged at the lower end of one first vent hole, and the third connecting rod can rotate to be communicated with the blowing pipe on a vertical plane; a plurality of gear assemblies are configured to rotate the third connecting rod into communication with the blowpipe in a vertical plane. The blast furnace flue gas dust removal device provided by the invention is used for treating a large amount of smoke dust generated in the iron-making process of a blast furnace, can avoid serious blockage of a local cloth bag without blowing, also avoids damage to a primary layer caused by small smoke dust accumulated in the local cloth bag, improves the atmospheric pollution caused by blast furnace iron-making, and is beneficial to environment-friendly construction.
Description
Technical Field
The invention relates to the technical field of environment-friendly equipment for iron-making blast furnace production, in particular to a dust removal device for blast furnace flue gas.
Background
The quality of air around the world is now far from the previous one, which is associated with atmospheric pollution. The development of the industry is required by the progress of the times, and the development of the large-scale industry can generate a lot of polluted gases and cause serious pollution to the atmosphere. Therefore, at present, strict requirements are required for the emission standard of industrial flue gas, and the emission amount of the flue gas can be discharged only when the emission amount of the flue gas meets the requirements, so that the pollution to the atmosphere is reduced.
With the development of the iron and steel industry in China, blast furnace iron making technology has also made great progress, and as a common way for iron making, more and more blast furnaces are built. However, the blast furnace can generate a large amount of smoke dust in the iron-making process, the dust in the blast furnace smoke dust has small particle size, and the dust can be suspended in the air for a long time to cause serious damage to the air.
The blast furnace dust removal usually adopts a two-step dust removal method, wherein the first step is gravity dust removal, and large-particle solid particles can be removed in the step, which is called as primary purified coal gas; the second step is dry dedusting, that is, a large-area bag-type dust remover is used for dedusting, and fine dust particles can be removed in the step. The currently common dust removal modes for the iron-making blast furnace mainly comprise: the method comprises the following steps of bag-type dust removal, vacuum cleaning, wet-type dust removal and spraying dust suppression, wherein the blast furnace dry-type dust removal is the mainstream process of the current secondary dust removal of blast furnace gas, after gas containing smoke dust enters the bag-type dust remover, the surface of a filter bag intercepts and deposits dust, when a powder layer reaches a certain thickness, the resistance of the filter bag can rise and the air permeability is reduced, and at the moment, the powder layer is peeled and deposited to recover the resistance of the filter bag so as to ensure the effect of filtering and dust removal. However, the prior mode of blowing or vibrating the cloth bag leads the powder layer to be peeled and settled uniformly, and the powder layer cannot be cleaned in a targeted manner according to different distribution conditions of the smoke dust, so that the blast furnace flue gas dust removal device has poor use effect and cannot effectively improve the atmospheric pollution caused by blast furnace iron making.
Disclosure of Invention
The invention provides a blast furnace flue gas dust removal device, which aims to solve the problems that the existing blast furnace flue gas dust removal device cannot perform targeted cleaning according to different distribution conditions of smoke dust, so that the blast furnace dust removal device has poor use effect and cannot effectively improve the atmospheric pollution caused by blast furnace iron making.
The blast furnace flue gas dust removal device adopts the following technical scheme: a blast furnace flue gas dust removal device comprises a dust removal box, an exhaust box and a blast furnace dust removal part, wherein the dust removal box is provided with a smoke inlet for smoke inlet; the exhaust box is provided with an exhaust port for exhausting smoke;
the blast furnace dust removing part comprises a first positioning plate, a plurality of cloth bags, a plurality of air blowing pipes, a first air supply pipeline, a plurality of third connecting rods and a plurality of gear assemblies;
the first positioning plate is arranged in the dust removal box; a plurality of first vent holes are formed in the first positioning plate;
each cloth bag is arranged at the lower end of one first vent hole,
each blowing pipe is arranged in one first ventilation hole along the vertical direction and extends into one corresponding cloth bag; a first air channel is defined between each air blowing pipe and one corresponding first air vent; the first air duct is used for discharging the smoke dust filtered by the cloth bag from the smoke outlet;
the first air supply pipeline is used for supplying air to the cloth bag from the interior of the blowing pipe;
each third connecting rod can be rotatably arranged in a blowing pipe in a penetrating mode, a ventilation groove is formed in the intersection part of each third connecting rod and the blowing pipe, and the third connecting rods can be rotated to be communicated with the blowing pipes on the vertical plane;
a plurality of gear assemblies are configured to rotate the third connecting rod into communication with the blowpipe in a vertical plane.
Further, each gear assembly comprises a gear and a plurality of one-way racks which are connected with one end of each third connecting rod, the gear can rotate around the axis of the third connecting rod,
each one-way rack is arranged along the vertical direction, each one-way rack can be installed on the first fixing plate in a vertically moving mode, each one-way rack is meshed with one corresponding gear, when the one-way racks are configured to move upwards, the gear set is not driven to rotate, and when the one-way racks move downwards, one corresponding gear is driven to rotate.
Further, still include the response subassembly, make the one-way rack move down and drive the gear rotation when the response subassembly disposes to move down.
Furthermore, the induction assembly comprises a first telescopic cylinder and a stop plate, the first telescopic cylinder is sleeved on the blowing pipe, and the first telescopic cylinder can be arranged in a vertically movable mode;
the stop plate is configured to move the one-way rack downward when the first telescopic cylinder moves downward.
Furthermore, the first telescopic cylinder comprises a first sleeve and an induction block, and the first sleeve is sleeved on the induction block; the lower end of the induction block is provided with an air sensing plate, and the first sleeve, the induction block and the air sensing plate are sleeved on the blowing pipe; the stop plate is arranged at one end of the wind sensing plate close to one end of the rack, and the stop plate is in contact with the upper end of the rack so as to drive the rack to move.
Furthermore, the device also comprises a first connecting rod, a second positioning plate and a third positioning plate;
the first connecting rod is arranged in the dust removing box;
the second connecting rod is arranged on the first connecting rod in a manner of moving left and right through a second elastic piece;
the second positioning plate is connected with the second connecting rod, and second vent holes with the same number and size as those of the first positioning plate are formed in the second positioning plate; the second positioning plate is arranged at one end which is far away from the cloth bag relative to the first positioning plate;
the third positioning plate is arranged in the dust removal box and is arranged at one end, far away from the cloth bag, of the third positioning plate relative to the second positioning plate; third ventilation holes with the same number and size as those of the first positioning plate are formed in the third positioning plate; the third vent hole and the second vent hole are overlapped with the first vent hole.
Furthermore, a supporting rod fixedly connected to the first positioning plate is arranged at the position, close to the first positioning plate, of the bottom of the first vent hole, and the supporting rod extends into the cloth bag and supports the cloth bag.
Further, the dust removal case lower extreme is provided with a plurality of ash buckets that are used for receiving the smoke and dust.
The invention has the beneficial effects that: 1. the blast furnace flue gas dust removal device provided by the invention is used for treating a large amount of smoke dust generated in the iron-making process of a blast furnace, solving the problem that different dust removal devices accumulate different amounts of dust in the using process, and determining the air blowing time according to the blockage degree of cloth bags at different positions. The setting of independent air blowing can avoid serious blockage of the local cloth bag without air blowing, and can also avoid the damage of the initial layer caused by less smoke dust accumulated in the local cloth bag. Effectively improves the air pollution caused by blast furnace ironmaking and is beneficial to the construction of friendly environment.
2. According to the blast furnace flue gas dust removal device, the ventilation area is adjusted by sensing the flue gas volume, so that when a large amount of flue gas arrives, due to untimely filtration, the air pollution is relatively increased, and the influence of the change of the flue gas volume on the blowing standard is avoided. When the flue gas volume is big, the deep bead drives the second locating plate and takes place to remove, makes the area that the hole on the second locating plate corresponds the hole on the first locating plate reduce, makes the draught area of first air supply passageway reduce, can deal with the emergency of a large amount of smoke and dust, realizes guaranteeing the filter effect of sack to the clearance of sack, further improves the atmosphere pollution that blast furnace ironmaking caused.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of an embodiment of a blast furnace flue gas dust removal device of the present invention;
FIG. 2 is a schematic diagram of the overall structure elevation of an embodiment of a blast furnace flue gas dust removal device of the present invention;
FIG. 3 is a schematic cross-sectional view of an overall structural front view of an embodiment of a blast furnace flue gas dust removal device of the present invention;
FIG. 4 is an enlarged view of the point A in FIG. 3;
FIG. 5 is an enlarged view of FIG. 3 at B;
FIG. 6 is an enlarged view of FIG. 3 at C;
FIG. 7 is a schematic view of the internal structure of an embodiment of the dust removing device for blast furnace flue gas of the present invention;
FIG. 8 is an exploded view of the internal structure of an embodiment of the dust removing device for blast furnace flue gas of the present invention;
FIG. 9 is a schematic structural diagram of an induction assembly of an embodiment of a blast furnace flue gas dust removal device of the present invention;
FIG. 10 is an enlarged view of FIG. 9 at D;
FIG. 11 is an exploded view of the induction assembly of the embodiment of the dust collector for blast furnace flue gas according to the present invention;
FIG. 12 is an enlarged view of FIG. 11 at E;
fig. 13 is a schematic cross-sectional view of a one-way rack of an embodiment of a blast furnace flue gas dust removal device of the present invention.
In the figure: 110. a smoke inlet; 120. an exhaust box; 121. an exhaust port; 130. a dust removal box; 131. a first connecting rod; 132. a pressure spring; 140. an ash hopper; 150. a first positioning plate; 152. a first chute; 153. a cloth bag; 154. run through the chute; 155. a support plate; 156. a groove; 157. a support bar; 160. an induction block; 161. a stop plate; 162. a wind sensing plate; 170. a second positioning plate; 171. a second connecting rod; 172. a wind deflector; 173. a through groove; 180. a third positioning plate; 181. a first sleeve; 190. a first air supply duct; 191. a second air supply duct; 192. a connecting port; 210. a unidirectional rack; 211. a tooth block; 212. a second sleeve; 213. an elastic connecting member; 220. a blowpipe; 221. connecting holes; 230. a gear assembly; 231. a ventilation slot; 232. and a third connecting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of a blast furnace flue gas dust removal device of the present invention is shown in fig. 1 to 13. A blast furnace flue gas dust removal device comprises a dust removal box 130, an exhaust box 120 and a blast furnace dust removal part, wherein a smoke inlet 110 for smoke inlet is arranged on the dust removal box 130, as shown in figure 1. The exhaust box 120 is provided with an exhaust port 121 for exhausting smoke. And a multi-step stair is arranged outside the dust removal box 130 and used by maintenance personnel. The lower end of the dust box 130 is supported by a support frame placed on the ground, as shown in fig. 2 and 3, and the lower end of the dust box 130 is provided with a plurality of ash hoppers 140 for receiving the smoke.
As shown in fig. 2, 3 and 7, the blast furnace dust removing part includes a first positioning plate 150, a plurality of cloth bags 153, a plurality of air blowing pipes 220, a first air blowing duct 190, a plurality of third connecting rods 232 and a plurality of gear assemblies; first locating plate 150 is fixed to be set up in dust removal case 130, is provided with a plurality of first ventilation holes on first locating plate 150, specifically, as shown in fig. 8, is provided with a plurality of ventilation groups on first locating plate 150, and a plurality of ventilation groups are arranged on first locating plate 150 in an array, and the quantity sets up to two sets at least, sets up to six in this application, and every ventilation group includes the first ventilation hole that a plurality of arrays set up, is 5*5's matrix in this application, also can set up the matrix of other quantity. Each cloth bag 153 is arranged at the lower end of one first vent hole, and each cloth bag 153 is fixedly connected with the first positioning plate 150; the bottom of the first vent hole is provided with a support bar 157 fixedly connected to the first positioning plate 150 at a position close to the first positioning plate 150, and the support bar 157 extends into the cloth bag 153 and supports the cloth bag 153. Each blowpipe 220 is a vertically through pipe, and each blowpipe 220 is vertically arranged in one first ventilation hole and extends into one corresponding cloth bag 153; a first air channel is defined between each air blowing pipe 220 and one correspondingly arranged first ventilation hole; the first air duct is used for discharging the smoke dust filtered by the cloth bag 153 upwards from the first air duct through the smoke outlet; the first air supply pipeline 190 is used for supplying air to the cloth bag 153 from the interior of the blowing pipe 220; as shown in fig. 11 and 12, each third connecting rod 232 is rotatably inserted through one blowpipe 220, a ventilation slot 231 is formed at the intersection of the third connecting rod 232 and the blowpipe 220, and the third connecting rod 232 is rotatably communicated with the blowpipe 220 on a vertical plane; the plurality of gear assemblies 230 are configured to rotate the third connecting rod 232 into communication with the blowpipe 220 in a vertical plane. The ventilation slot 231 is located on the third connecting rod 232, the blowing pipe 220 is provided with a connecting hole 221, and the third connecting rod 232 is rotatably disposed in the connecting slot.
During normal use, the flue gas in the blast furnace enters the dust removal box 130 through the smoke inlet 110, the flue gas is filtered through the surface of the cloth bag 153, and the filtered flue gas enters the first ventilating duct and is discharged from the exhaust port 121. The dust in the flue gas is accumulated on the surface of the cloth bag 153, and when the amount of the dust accumulated on the cloth bag 153 is small, the cloth bag 153 has a good filtering effect. When a certain cloth bag 153 needs to be filtered, the gear assemblies 230 enable the third connecting rod 232 to rotate to be communicated with the air blowing pipe 220 on a vertical plane, and the first air supply pipeline 190 can supply air to the cloth bag 153 from the interior of the air blowing pipe 220; the cloth bag 153 is filtered.
In another embodiment, as shown in fig. 9 and 10, each gear assembly 230 includes a gear and a plurality of unidirectional racks 210 connected to one end of each third connecting rod 232, the gear can rotate around the axis of the third connecting rod 232, each unidirectional rack 210 is disposed along the vertical direction, each unidirectional rack 210 can be mounted on the first fixing plate in a manner of moving up and down, each unidirectional rack 210 is engaged with a corresponding gear, and the unidirectional racks 210 are configured to not drive the gear assembly 230 to rotate when moving up and drive a corresponding gear to rotate when moving down. The lower end of each unidirectional rack 210 is provided with a first elastic piece. The first elastic piece is a first spring; the lower end of the one-way rack 210 is provided with a second sleeve 212, and the second sleeve 212 is sleeved on the first spring. Specifically, as shown in fig. 8 and 10, a plurality of grooves 156 for mounting a plurality of unidirectional racks 210 are provided on the first fixing plate, the grooves 156 are provided corresponding to the unidirectional racks 210, a lower end of the first spring is connected to a bottom surface of the grooves 156, and an upper end of the first spring is connected to a lower end of the racks. Further, support plates 155 are provided to front and rear ends of each of the gears and the third connecting rod 232, and the support plates 155 serve to position the gears. The blowing pipes 220, the gears and the unidirectional racks 210 are correspondingly arranged and have the same number.
In another embodiment, a sensing component is further included, and the sensing component is configured to move the unidirectional rack 210 downwards to drive the gear to rotate when the sensing component moves downwards. As shown in fig. 10, the sensing assembly includes a first telescopic cylinder sleeved on the blowing pipe 220 and disposed to be movable up and down, and a stop plate 161; the stopper plate 161 is configured to move the one-way rack 210 downward when the first telescopic cylinder moves downward. The first telescopic cylinder comprises a first sleeve 181 and a sensing block 160, and the first sleeve 181 is sleeved on the sensing block 160, so that the sensing block 160 can move up and down in the first sleeve 181; the lower end of the induction block 160 is provided with an air induction plate 162, and the first sleeve 181, the induction block 160 and the air induction plate 162 are sleeved on the blowpipe 220; the stop plate 161 is disposed at one end of the air-sensitive plate 162 close to one end of the rack, and the stop plate 161 contacts with the upper end of the rack to drive the rack to move. Specifically, as shown in fig. 13, a plurality of mounting grooves are formed on the unidirectional rack 210, a plurality of tooth blocks 211 are rotatably disposed in the plurality of correspondingly disposed mounting grooves, and each tooth block 211 is connected to the mounting groove through an elastic connecting member 213, so that when the rack moves upward as a whole, the meshing portion of the tooth block 211 and the gear enters the mounting groove and does not rotate;
in another embodiment, as shown in fig. 3 and 4, a first connecting rod 131, a second connecting rod 171, a second positioning plate 170 and a third positioning plate 180 are further included. The first connecting rod 131 is arranged in the dust removing box 130; the second connecting rod 171 is disposed on the first connecting rod 131 through the second elastic member 132 to be movable left and right; the second elastic member is a compression spring 132 so that the second connecting rod 171 slides on the first connecting rod 131 to compress the compression spring 132 when smoke is accumulated in a large amount. The second positioning plate 170 is connected with the second connecting rod 171, and the second positioning plate 170 is provided with second vent holes with the same number and size as the first vent holes on the first positioning plate 150; the second positioning plate 170 is disposed at an end away from the cloth bag 153 opposite to the first positioning plate 150; the second positioning plate 170 is disposed at the upper end of the first positioning plate 150, and further, as shown in fig. 9, two first sliding grooves 152 are disposed at two ends of the first positioning plate 150 of the second positioning plate 170, two first sliding blocks are disposed at the lower end of the second positioning plate 170, and the two first sliding blocks are disposed in the two first sliding grooves 152 respectively. The first positioning plate 150 is provided with a through sliding slot 154 for allowing the second positioning plate 170 to pass through and slide in the through sliding slot 154.
The second positioning plate 170 is provided with a plurality of through grooves 173 for allowing the unidirectional racks 210 to pass through, the third positioning plate 180 is arranged in the dust removing box 130, and the third positioning plate 180 is arranged at one end of the second positioning plate 170 far away from the cloth bag 153; the third positioning plate 180 is provided with third ventilation holes with the same number and size as those of the first positioning plate 150; the third vent hole and the second vent hole are overlapped with the first vent hole. The first telescopic cylinder is fixedly arranged with the third positioning plate 180. Specifically, as shown in fig. 7, the first air supply duct 190 is located above the third positioning plate 180, the first air supply duct 190 includes a plurality of second air supply ducts 191 arranged along the horizontal direction and connection ports 192 opened on the second air supply ducts 191 and connected to the air supply ports, and the upper end of each blowing pipe 220 is inserted into the second air supply ducts 191, so that the air entering from the air supply ports can enter the blowing pipes 220 through the second air supply ducts 191.
The working process comprises the following steps: the flue gas in the blast furnace enters the dust removal box 130 through the flue gas inlet 110, the flue gas is filtered through the surface of the cloth bag 153, the filtered flue gas enters the upper part, the dust in the flue gas is accumulated on the surface of the cloth bag 153, and when the amount of the dust accumulated on the cloth bag 153 is small, the cloth bag 153 has a good filtering effect. That is, after the cloth bag in the prior art is used for a period of time, a layer of dust is accumulated on the surface of the cloth bag due to the effects of screening, collision, detention, diffusion, static electricity and the like, the layer of dust is called as a primary layer, in the later movement process, the primary layer becomes a main filtering layer of the filtering material, and the filtering material with larger meshes can obtain higher filtering efficiency by the action of the primary layer. Under the effect of flue gas, response piece 160 can rise to a certain height this moment, (in this application, make response piece 160 because gravity make the state that the induction plate contacted with one-way rack 210 makes one-way rack 210 move down be initial condition), and one-way rack 210 also rises under the effect of pressure spring. At this time, the ventilation slot 231 of the gear assembly 230 is located at a position where the central hole of the blowpipe 220 is not located on the same vertical plane, i.e., the blowpipe 220 is in a closed state.
Along with dust accumulation more and more on the sack 153, the flue gas volume through the sack 153 also can reduce this moment, the board 162 that feels can descend gradually this moment, after falling to a take the altitude, can press one-way rack 210 downstream, drive the rotation of gear assembly 230, thereby make the hole in ventilation groove 231 corresponds the blowing pipe 220, thereby make the blowing mouth open, the air current of first blast pipe 190 to the interior transport of blowing pipe 220 can get into the sack 153, the above-mentioned accumulation of sack 153 of this moment smoke dust can be shaken and fall in the ash bucket 140 of below, accomplish the clearance to this blowing pipe 220.
Meanwhile, the air induction plate 162 at the corresponding position can continuously descend with the one-way rack 210 to close the hole in the blowpipe 220. The ventilation of the cloth bag 153 after cleaning is increased, and the corresponding sensing block 160 is continuously pushed to ascend away from the one-way rack 210. The utility model provides a setting can carry out the clearance that has the pertinence to the sack 153 that needs the clearance, makes the sack 153 that really needs the clearance dredged, has avoided the filter effect that the clearance destroyed the sack 153 simultaneously.
For the air outlets at different positions, only when the dust on the cloth bag 153 accumulates to a certain amount, that is, the sensing block 160 falls to a certain degree, it is most reasonable to blow air, and the primary layer on the cloth bag 153 with less accumulated smoke dust cannot be damaged. The discharge of the flue gas in the blast furnace is paroxysmal, namely the discharge amount of the flue gas is irregular. It is also not suitable if the position of the blow is measured by a fixed standard. For example, when the amount of smoke is large, the sensing block 160 may be located at a higher position under the action of the smoke, and the amount of dust accumulated on the cloth bag 153 may reach the standard of blowing.
The accessible is through the size of deep bead 172 response flue gas volume, and when flue gas volume was big, deep bead 172 drove second locating plate 170 and takes place to remove, makes the area that the hole on the second locating plate 170 corresponds the hole on the first locating plate 150 reduce, reduces the draught area of first air supply passageway, has reduced the lifting surface area who feels aerofoil 162 in other words, avoids responding to piece 160 and rise because flue gas volume is big. And simultaneously meets the requirement of blowing when the cloth bag 153 is blocked to a certain degree. The cloth bag 153 can be cleaned in response to the emergency of a large amount of smoke dust in the blast furnace ironmaking process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (4)
1. The utility model provides a blast furnace flue gas dust collector which characterized in that: the device comprises a dust removal box, an exhaust box and a blast furnace dust removal part, wherein the dust removal box is provided with a smoke inlet for smoke inlet; the exhaust box is provided with an exhaust port for exhausting smoke;
the blast furnace dust removing part comprises a first positioning plate, a plurality of cloth bags, a plurality of air blowing pipes, a first air supply pipeline, a plurality of third connecting rods and a plurality of gear assemblies;
the first positioning plate is arranged in the dust removal box; a plurality of first vent holes are formed in the first positioning plate;
each cloth bag is arranged at the lower end of one first vent hole;
each air blowing pipe is arranged in one first ventilation hole along the vertical direction and extends into one corresponding cloth bag; a first air channel is defined between each air blowing pipe and one corresponding first air vent; the first air duct is used for discharging the smoke dust filtered by the cloth bag from the smoke outlet;
the first air supply pipeline is used for supplying air to the cloth bag from the interior of the blowing pipe;
each third connecting rod can be rotatably arranged in a blowing pipe in a penetrating mode, a ventilation groove is formed in the intersection part of each third connecting rod and the blowing pipe, and the third connecting rods can be rotated to be communicated with the blowing pipes on the vertical plane;
a plurality of gear assemblies configured to rotate the third connecting rod into communication with the blowpipe in a vertical plane; each gear assembly comprises a gear and a plurality of one-way racks, one end of each third connecting rod is connected with the gear and the one-way racks, the gear can rotate around the axis of the third connecting rod, each one-way rack is arranged along the vertical direction, each one-way rack can be mounted on the first fixing plate in a vertically moving mode, each one-way rack is meshed with a correspondingly arranged gear, and the one-way racks are configured to drive the gear assembly to rotate when moving upwards and drive a correspondingly arranged gear to rotate when moving downwards; the induction component is configured to enable the one-way rack to move downwards to drive the gear to rotate when moving downwards; the induction assembly comprises a first telescopic cylinder and a stop plate, the first telescopic cylinder is sleeved on the blowing pipe, and the first telescopic cylinder can be arranged in a vertically moving mode;
the stop plate is configured to enable the one-way rack to move downwards when the first telescopic cylinder moves downwards; the first telescopic cylinder comprises a first sleeve and an induction block, and the first sleeve is sleeved on the induction block; the lower end of the induction block is provided with an air sensing plate, and the first sleeve, the induction block and the air sensing plate are sleeved on the blowing pipe; the stop plate is arranged at one end of the wind sensing plate close to one end of the rack, and the stop plate is in contact with the upper end of the rack so as to drive the rack to move.
2. The blast furnace flue gas dust removal device of claim 1, wherein: the first connecting rod, the second positioning plate and the third positioning plate are further included;
the first connecting rod is arranged in the dust removing box;
the second connecting rod is arranged on the first connecting rod in a manner of moving left and right through a second elastic piece;
the second positioning plate is connected with the second connecting rod, and second ventilation holes with the same quantity and size as those of the first positioning plate are formed in the second positioning plate; the second positioning plate is arranged at one end which is far away from the cloth bag relative to the first positioning plate;
the third positioning plate is arranged in the dust removal box and is arranged at one end far away from the cloth bag relative to the second positioning plate;
third ventilation holes with the same number and size as those of the first positioning plate are formed in the third positioning plate; the third vent hole and the second vent hole are overlapped with the first vent hole.
3. The blast furnace flue gas dust removal device of claim 1, wherein: the bottom in first ventilation hole is provided with the bracing piece of fixed connection on first locating plate near the position of first locating plate, and the bracing piece stretches into in the middle of the sack to prop up the sack.
4. The blast furnace flue gas dust removal device of claim 1, wherein: the dust removal case lower extreme is provided with a plurality of ash buckets that are used for receiving the smoke and dust.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210114850.9A CN114534387B (en) | 2022-01-30 | 2022-01-30 | Blast furnace flue gas dust removal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210114850.9A CN114534387B (en) | 2022-01-30 | 2022-01-30 | Blast furnace flue gas dust removal device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114534387A CN114534387A (en) | 2022-05-27 |
| CN114534387B true CN114534387B (en) | 2022-12-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210114850.9A Active CN114534387B (en) | 2022-01-30 | 2022-01-30 | Blast furnace flue gas dust removal device |
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| CN117085427B (en) * | 2023-10-19 | 2023-12-26 | 江苏威拉里新材料科技有限公司 | Sedimentation dust remover |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2529044A1 (en) * | 1975-06-30 | 1977-01-27 | Delaco Ges Fuer Huetten Und St | Sleeve type dust filter - for large gas flows having groups of cylindrical bags with backflush cleaning |
| JP2005246367A (en) * | 2004-02-03 | 2005-09-15 | Fuji Koki Kk | Filtration type dust collector |
| CN106215556A (en) * | 2016-08-29 | 2016-12-14 | 合肥合意环保科技工程有限公司 | A kind of shaft kiln glass cleaner |
| CN210278539U (en) * | 2019-05-24 | 2020-04-10 | 安徽富通环保节能科技股份有限公司 | Dust removing device |
| CN112370911A (en) * | 2020-10-26 | 2021-02-19 | 常州安康机械有限公司 | Pulse bag type dust collector convenient to disassemble and maintain and used for rice processing |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206434968U (en) * | 2017-01-16 | 2017-08-25 | 胡波 | A kind of sack cleaner with deashing device |
| CN109351070A (en) * | 2018-10-18 | 2019-02-19 | 陈根章 | A kind of dust-removal cloth-bag leak test device |
| CN210874472U (en) * | 2019-05-29 | 2020-06-30 | 泊头市亿利达环保机械设备有限责任公司 | Bag-type dust collector capable of improving bag-type dust collection use efficiency |
| CN212283242U (en) * | 2020-03-03 | 2021-01-05 | 福建省捷云建筑工程有限公司 | Building electromechanical installation environmental protection flue gas dust collector |
| CN213375579U (en) * | 2020-09-02 | 2021-06-08 | 南京仟亿达新能源科技有限公司 | Bag-type dust collector online monitoring system |
| CN213912766U (en) * | 2020-11-25 | 2021-08-10 | 内蒙古伊东化工有限责任公司 | Bag-type dust collector |
-
2022
- 2022-01-30 CN CN202210114850.9A patent/CN114534387B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2529044A1 (en) * | 1975-06-30 | 1977-01-27 | Delaco Ges Fuer Huetten Und St | Sleeve type dust filter - for large gas flows having groups of cylindrical bags with backflush cleaning |
| JP2005246367A (en) * | 2004-02-03 | 2005-09-15 | Fuji Koki Kk | Filtration type dust collector |
| CN106215556A (en) * | 2016-08-29 | 2016-12-14 | 合肥合意环保科技工程有限公司 | A kind of shaft kiln glass cleaner |
| CN210278539U (en) * | 2019-05-24 | 2020-04-10 | 安徽富通环保节能科技股份有限公司 | Dust removing device |
| CN112370911A (en) * | 2020-10-26 | 2021-02-19 | 常州安康机械有限公司 | Pulse bag type dust collector convenient to disassemble and maintain and used for rice processing |
Non-Patent Citations (1)
| Title |
|---|
| 布袋除尘器在处理锅炉烟尘中的应用;林洁婷;《资源节约与环保》;20160625(第06期);第50页 * |
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