CN112717651A - Flue gas desulfurization device for steel sintering and pelletizing industry - Google Patents

Flue gas desulfurization device for steel sintering and pelletizing industry Download PDF

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Publication number
CN112717651A
CN112717651A CN202011374166.1A CN202011374166A CN112717651A CN 112717651 A CN112717651 A CN 112717651A CN 202011374166 A CN202011374166 A CN 202011374166A CN 112717651 A CN112717651 A CN 112717651A
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flue gas
pipe
heat exchange
water
ozone
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Chinese (zh)
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刘刚
陈禹
米良玉
李成伟
汤小龙
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Jiangsu Binxin Steel Group Co Ltd
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Jiangsu Binxin Steel Group Co Ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76Gas phase processes, e.g. by using aerosols
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0052Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation
    • B01D46/0053Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with filtering elements moving during filtering operation with vibrating filtering elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D46/00Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42Auxiliary equipment or operation thereof
    • B01D46/4218Influencing the heat transfer which act passively, e.g. isolations, heat sinks, cooling ribs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/46Removing components of defined structure
    • B01D53/48Sulfur compounds
    • B01D53/50Sulfur oxides
    • B01D53/501Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
    • B01D53/504Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/74General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/80Semi-solid phase processes, i.e. by using slurries
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/40Alkaline earth metal or magnesium compounds
    • B01D2251/404Alkaline earth metal or magnesium compounds of calcium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2251/00Reactants
    • B01D2251/60Inorganic bases or salts
    • B01D2251/606Carbonates
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2258/00Sources of waste gases
    • B01D2258/02Other waste gases
    • B01D2258/0283Flue gases

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Biomedical Technology (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention relates to the technical field of flue gas desulfurization equipment, and particularly discloses a flue gas desulfurization device for steel sintering and pelletizing industry; the industrial flue gas filter box is arranged on the left side of the ozone generator; the lower end of the desulfurization tower body is connected with a slurry tank, the upper end of the desulfurization tower body is connected with a discharge pipe, an ozone generator is connected with an ozone pipe, the ozone pipe extends into the upper end of the slurry tank, the inner end of the ozone pipe is connected with an annular gas equalizing pipe, the lower surface of the annular gas equalizing pipe is uniformly provided with a plurality of ozone exposure heads, and limestone is filled in the slurry tank; the design of the invention can diffuse the originally concentrated smoke from the smoke holes and discharge the smoke upwards, the smoke can be completely contacted with the water sprayed in the spraying layer and then fall into the slurry pool together with the water to be reflected by the lime, and the desulfurization effect of the whole device can be greatly improved.

Description

Flue gas desulfurization device for steel sintering and pelletizing industry
Technical Field
The invention relates to the technical field of flue gas desulfurization equipment, and particularly discloses a flue gas desulfurization device for steel sintering and pelletizing industry.
Background
The sulfur dioxide generated in the steel industry of China is second to the coal and electricity industry, and the steel industry with the sulfur dioxide emission in the sintering and pelletizing process accounts for more than 40 percent, so that the steel industry needs to fully pay attention to the sulfur dioxide emission control in the sintering and pelletizing process. At present, more devices are used for flue gas desulfurization, but the ultra-low emission of sulfur dioxide in the existing steel sintering and pelletizing industries is less, and the pertinence is not strong. The method is analyzed from a sintered pellet flue gas desulfurization device of steel enterprises in China, the ultralow-emission desulfurization use effect is not ideal, and even some enterprises have serious secondary pollution problems.
The utility model with the patent number of CN201720974211.4 discloses a flue gas desulfurization device for steel sintering and pelletizing industry, which comprises a tower body, a slurry tank arranged below the inside of the tower body, a flue gas inlet arranged above the slurry tank, a demister arranged above the inside of the tower body, and a tower top chimney, wherein the desulfurization device also comprises a flow-through sieve plate tray and a spraying layer which are arranged between the demister and the flue gas inlet, and at least one layer of the spraying layer is arranged above the flow-through sieve plate tray; the utility model discloses a flue gas desulfurization device is through setting up the STREAMING sieve tray spraying layer below, can carry out high-efficient desulfurization and remove dust in coordination to the flue gas to reach steel sintering, the ultralow emission standard of pelletizing industry flue gas desulfurization, its desulfurization that is particularly useful for steel sintering, pelletizing industry flue gas, but it still has some not enoughly in the in-service use process. Firstly, the method for desulfurizing the flue gas by the flue gas desulfurization device is wet desulfurization, and the heat in the flue gas discharged after desulfurization cannot be utilized, so that heat energy waste is caused; secondly, the flue gas desulfurization device directly performs wet desulfurization on the flue gas, the flue gas also contains a large amount of dust impurities, and if the flue gas is directly discharged into a desulfurization tower body, the dust impurities are easily attached to the inner wall of the tower body under the action of sprayed water mist, scale can be formed on the inner wall of the tower body after long-time desulfurization, and subsequently, operators are required to consume physical strength for cleaning; thirdly, when the flue gas among this desulphurization unit was directly discharged from the flue gas mouth, its flue gas can concentrate upward movement, and it can't all be with the moisture contact that sprays down in the layer of spraying of its flue gas of too concentrating, and it still can lead to a small amount of sulfur dioxide to discharge from the top discharge port, and its desulfurization effect is not good. Therefore, aiming at the defects of the existing industrial flue gas desulfurization device for steel sintering and pelletizing, the design of the industrial flue gas desulfurization device capable of effectively solving the three defects is a technical problem to be solved.
Disclosure of Invention
The technical problem to be solved by the invention is to design an industrial flue gas desulfurization device capable of effectively solving the three defects aiming at the defects of the existing device for the industrial flue gas desulfurization of steel sintering and pelletizing.
The invention is realized by the following technical scheme:
a steel sintering and pelletizing industrial flue gas desulfurization device comprises a desulfurization tower body, an industrial flue gas filter box and an ozone generator, wherein the ozone generator is arranged on the left side of the desulfurization tower body, and the industrial flue gas filter box is arranged on the left side of the ozone generator;
wherein the lower end of the desulfurization tower body is connected with a slurry pool, the upper end of the desulfurization tower body is connected with a discharge pipe, the ozone generator is connected with an ozone pipe which extends into the upper end of the slurry tank, the inner end of the ozone pipe is connected with an annular gas-homogenizing pipe, the lower surface of the annular gas-homogenizing pipe is uniformly provided with a plurality of ozone gas exposure heads, limestone is filled in the slurry pool, a motor mounting seat is arranged at the front side of the slurry pool, a stirring motor is fixed on the motor mounting seat, the end part of the output shaft of the stirring motor extending into the slurry tank is connected with a rotating shaft, a plurality of stirring rods are arranged on the rotating shaft in a staggered manner, a first spraying device and a second spraying device are arranged in the desulfurization tower body at intervals up and down, and a first cross-flow sieve plate tray and a second cross-flow sieve plate tray are respectively arranged above the first spraying device and the second spraying device;
a filtered flue gas inlet pipe is connected to the desulfurization tower body below the first cross-flow type sieve plate tray, an inverted cone-shaped cover is connected to the inner end of the filtered flue gas inlet pipe, an arc-shaped cover face is connected to the upper end of the inverted cone-shaped cover, and a large number of smoke outlet holes are uniformly formed in the arc-shaped cover face;
the outer end of the filtered flue gas inlet pipe is communicated with the right side face of an industrial flue gas filter box, the left side face of the industrial flue gas filter box is connected with a flue gas inlet pipe to be treated, the left end of the inner cavity of the industrial flue gas filter box is provided with a filter layer, a filtered impurity collecting region is arranged between the filter layer and the left side wall of the industrial flue gas filter box, a filtered impurity collecting box is arranged in the filtered impurity collecting region in a pulling mode, and a heat exchange mechanism is arranged in the industrial flue gas filter box on the right side of the filter layer;
wherein, heat exchange mechanism is including setting up the water storage heat preservation jar in industry flue gas rose box rear side and setting up the first water pump in industry flue gas rose box front side, the end of intaking of first water pump is connected with external water source, the play water end of first water pump is connected with the inlet tube that stretches into in the industry flue gas rose box inner chamber, the end connection of inlet tube has S type metal heat exchange pipe, the lower tip of S type metal heat exchange pipe is connected with the outlet pipe, the outlet pipe is linked together with the water storage heat preservation jar, be provided with a plurality of heat exchange fins on the S type metal heat exchange pipe, it is a plurality of heat exchange fin interval all with arrange perpendicularly and S type metal heat exchange pipe passes the heat exchange fin setting many times.
A filter layer anti-clogging cleaning device is arranged in the industrial flue gas filter box between the filter layer and the heat exchange mechanism, the anti-blocking cleaning device for the filter layer comprises a driving motor arranged on the front side surface of the industrial flue gas filter box, the end part of the rotating shaft of the driving motor extending into the inner cavity of the industrial flue gas filter box is connected with a first rotating rod, the first rotating rod is provided with an incomplete gear, a second rotating rod is arranged right below the first rotating rod, the front end and the rear end of the second rotating rod are respectively and rotatably connected with bearing seats on the front inner wall and the rear inner wall of the industrial flue gas filter box, a complete gear matched with the incomplete gear is arranged on the second rotating rod, torsion springs are arranged at the front end and the rear end of the second rotating rod, the outer end of the torsion spring is connected with a bearing seat on the inner wall of the industrial flue gas filter box, the second rotating rod is connected with a rotating arm, and the end part of the rotating arm is connected with a knocking head.
As a further configuration of the above aspect, the ozone pipe is provided with a first flow rate adjustment valve.
As the further setting of above-mentioned scheme, first spray set and second spray set all include a suction pump and a drinking-water pipe, the end of intaking of suction pump is connected with external water source, the drinking-water pipe is connected with the play water end of suction pump, the end connection of drinking-water pipe has the level to spray and is responsible for, the level sprays and is responsible for and is connected with a plurality of branch pipes that spray, every the lower surface that sprays the branch pipe evenly is provided with a plurality of atomizer.
As a further arrangement of the above scheme, the horizontal spraying main pipes on the first spraying device and the second spraying device are vertically staggered in space.
As a further arrangement of the scheme, the first flow-through sieve plate tray and the second flow-through sieve plate tray are circular plates consistent with the inner wall of the desulfurization tower body, and multiple flow holes are uniformly formed in the circular plates.
As a further arrangement of the scheme, a second flow regulating valve is arranged at the position, close to the industrial flue gas filtering box, of the flue gas inlet pipe.
As a further arrangement of the scheme, the filter layer is a filter screen with the aperture of 0.1-0.3 mm.
As a further arrangement of the scheme, the front side surface of the ozone generator is provided with a display screen and a control switch.
As a further arrangement of the scheme, the S-shaped metal heat exchange tube and the heat exchange fin are both made of copper or aluminum.
As a further arrangement of the above scheme, the first rotating rod is provided with two incomplete gears which are distributed at the front end and the rear end of the first rotating rod, and the second rotating rod is provided with two complete gears which correspond to each incomplete gear.
Compared with the prior art, the invention has the following beneficial effects:
1) according to the invention, the heat exchange mechanism is arranged in the industrial flue gas filtering box, the filtered high-temperature industrial flue gas can exchange heat with the heat exchange fins and the S-shaped metal heat exchange tubes, and then the heat-exchanged hot water is stored in the water storage heat-insulation tank, so that the heat utilization efficiency is high, and the waste of heat energy is effectively avoided.
2) The industrial flue gas which is directly discharged into the desulfurization tower body originally is filtered in the industrial flue gas filter box, and then is discharged into the desulfurization tower body for desulfurization treatment after being filtered; in addition, it passes through incomplete gear of driving motor drive and rotates, its incomplete gear can mesh with complete gear in the rotation process mutually, thereby make the second bull stick rotate and hold the trend to the torsional spring, when incomplete gear and complete gear slippage, its torsional spring release energy, strike the filter screen with the head of knocking of swing arm tip, it can dredge the clearance with the filter screen, it has effectively prevented to filter the problem that leads to the jam to the industry flue gas for a long time, its structural design is ingenious, prevent that the blocking-up performance is excellent.
3) According to the invention, the end part of the filtered flue gas inlet pipe is connected with the inverted cone-shaped cover, the upper end of the inverted cone-shaped cover is connected with the arc-shaped cover, and a large number of flue holes are formed in the arc-shaped cover.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a first angular perspective structure of the present invention;
FIG. 2 is a schematic view of a second angular perspective structure according to the present invention;
FIG. 3 is a schematic view of the internal plan structure of the desulfurization tower of the present invention;
FIG. 4 is a schematic view of the three-dimensional structure of the ozone generator and the annular gas-homogenizing pipe;
FIG. 5 is a schematic perspective view of a first or second spraying device according to the present invention;
fig. 6 is a schematic perspective view of a first flow-through sieve tray or a second flow-through sieve tray according to the present invention;
FIG. 7 is a schematic view of the three-dimensional structure of the filtered flue gas inlet pipe, the inverted cone-shaped cover and the like in the present invention;
FIG. 8 is a schematic view of the internal plan structure of the industrial flue gas filtration tank of the present invention;
FIG. 9 is a schematic perspective view of a heat exchange mechanism according to the present invention;
FIG. 10 is a schematic perspective view of the cleaning device for preventing clogging of the filter layer according to the present invention.
Wherein: 1-a desulfurization tower body, 101-a slurry pool, 102-a discharge pipe, 103-a first flow-through sieve tray, 104-a second flow-through sieve tray, 105-a filtered flue gas inlet pipe, 106-an inverted cone cover, 107-an arc cover surface, 1071-a smoke hole, 2-an industrial flue gas filter box, 201-a flue gas inlet pipe to be treated, 202-a filter layer, 203-a filtered impurity collecting region, 204-a filtered impurity collecting box, 207-a second flow regulating valve, 3-an ozone generator, 301-an ozone pipe, 302-an annular gas homogenizing pipe, 303-an ozone gas exposure head, 304-a first flow regulating valve, 4-a motor mounting seat, 5-a stirring motor, 501-a rotating shaft, 502-a stirring rod, 6-a first spray device and 7-a second spray device, 601-water pump, 602-water pumping pipe, 603-horizontal spraying main pipe, 604-spraying branch pipe, 605-atomizing nozzle, 8-heat exchange mechanism, 801-water storage and heat preservation tank, 802-first water pump, 803-water inlet pipe, 804-S type metal heat exchange pipe, 805-water outlet pipe, 806-heat exchange fin, 9-filtering layer anti-blocking cleaning device, 901-driving motor, 902-first rotating rod, 903-incomplete gear, 904-second rotating rod, 905-complete gear, 906-rotating arm, 907-knocking head and 908-torsion spring.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, but not all 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 application.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention.
It should be noted that the terms "first", "second" and the like in the description of the present invention are used for convenience only to describe different components, and are not to be construed as indicating or implying a sequential relationship, relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", may explicitly or implicitly include at least one of the feature.
The flue gas desulfurization device for steel sintering and pelletizing industry disclosed by the invention is further explained with reference to the attached drawings 1-10.
Example 1
The embodiment 1 discloses a steel sintering and pelletizing industrial flue gas desulfurization device, and referring to the attached drawings 1 and 2, the main device of the device comprises a desulfurization tower body 1, an industrial flue gas filter box 2 and an ozone generator 3. When the device is specifically arranged, the ozone generator 3 is arranged on the left side of the desulfurization tower body 1, the industrial flue gas filter box 2 is arranged on the left side of the ozone generator 3, and a display screen and a control switch (not labeled in the figure) are arranged on the front side surface of the ozone generator 3.
Referring to the attached drawings 1, 3 and 4, a slurry tank 101 is connected to the lower end of a desulfurization tower body 1, a discharge pipe 102 is connected to the upper end of the desulfurization tower body 1, an ozone pipe 301 is connected to an ozone generator 3, the ozone pipe 301 extends into the upper end of the slurry tank 101, an annular gas homogenizing pipe 302 is connected to the inner end of the ozone pipe 301, and a plurality of ozone exposure heads 303 are uniformly arranged on the lower surface of the annular gas homogenizing pipe 302. Further, ozone tube 301 is provided with first flow rate adjustment valve 304. Sufficient limestone is filled in the slurry tank 101, a motor mounting seat 4 is arranged on the front side of the slurry tank 101, a stirring motor 5 is fixed on the motor mounting seat 4, the end part of an output shaft of the stirring motor 5, which extends into the slurry tank 101, is connected with a rotating shaft 501, and a plurality of stirring rods 502 are arranged on the rotating shaft 501 in a staggered manner.
Referring to fig. 3, a first spray device 6 and a second spray device 7 are arranged in the desulfurization tower body 1 at intervals up and down, and a first cross-flow type sieve tray 103 and a second cross-flow type sieve tray 104 are respectively arranged above the first spray device 6 and the second spray device 7.
Specifically, referring to fig. 5 and fig. 6, the first spraying device 6 and the second spraying device 7 each include a water pump 601 and a water pumping pipe 602, a water inlet end of the water pump 601 is connected to an external water source, the water pumping pipe 602 is connected to a water outlet end of the water pump 601, an end of the water pumping pipe 602 is connected to a horizontal spraying main pipe 603, the horizontal spraying main pipe 603 is connected to a plurality of spraying branch pipes 604, and a plurality of atomizing nozzles 605 are uniformly disposed on a lower surface of each spraying branch pipe 604. And the horizontal spraying main pipes 603 on the first spraying device 6 and the second spraying device 7 are vertically staggered in space. Wherein, the first flow-through sieve tray 103 and the second flow-through sieve tray 104 are circular plates consistent with the inner wall of the desulfurization tower body 1, and multiple flow holes are uniformly arranged on the circular plates.
Referring to fig. 3 and fig. 7, a filtered flue gas inlet pipe 105 is connected to the desulfurization tower body 1 below the first flow-through sieve tray 103, an inverted cone cover 106 is connected to the inner end of the filtered flue gas inlet pipe 105, an arc-shaped cover face 107 is connected to the upper end of the inverted cone cover 106, and a large number of flue gas outlet holes 1071 are uniformly formed in the arc-shaped cover face 107. The outer end of the filtered flue gas inlet pipe 105 is communicated with the right side surface of the industrial flue gas filtering box 2, and a second flow regulating valve 207 is arranged at the position of the flue gas inlet pipe 201 close to the industrial flue gas filtering box 2.
Referring to fig. 1, fig. 2 and fig. 8, a flue gas inlet pipe 201 to be treated is connected to the left side surface of the industrial flue gas filtering tank 2, a filtering layer 202 is arranged at the left end of the inner cavity of the industrial flue gas filtering tank 2, a filtering impurity collecting region 203 is arranged between the filtering layer 202 and the left side wall of the industrial flue gas filtering tank 2, a filtering impurity collecting box 204 is arranged in the filtering impurity collecting region 203 in a pulling manner, and a heat exchange mechanism 8 is arranged in the industrial flue gas filtering tank 2 on the right side of the filtering layer 202.
Specifically, referring to fig. 1, fig. 2 and fig. 9, the heat exchange mechanism 8 includes a water storage and heat preservation tank 801 disposed at the rear side of the industrial flue gas filtration tank 2 and a first water pump 802 disposed at the front side of the industrial flue gas filtration tank 2, a water inlet end of the first water pump 802 is connected to an external water source, a water outlet end of the first water pump 802 is connected to a water inlet pipe 803 extending into an inner cavity of the industrial flue gas filtration tank 2, an end of the water inlet pipe 803 is connected to an S-shaped metal heat exchange tube 804, a water outlet pipe 805 is connected to a lower end of the S-shaped metal heat exchange tube 804, the water outlet pipe 805 is communicated with the water storage and heat preservation tank 801, the S-shaped metal heat exchange tube 804 is provided with a plurality of heat exchange fins 806, the plurality of heat exchange fins. Wherein, the S-shaped metal heat exchange tube and the heat exchange fin are both made of copper or aluminum.
Example 2
Embodiment 2 discloses a steel sintering and pelletizing industrial flue gas desulfurization device improved based on embodiment 1, and referring to fig. 1 and fig. 2, the main device of the device comprises a desulfurization tower body 1, an industrial flue gas filter box 2 and an ozone generator 3. When the industrial flue gas desulfurization tower is specifically arranged, the ozone generator 3 is arranged on the left side of the desulfurization tower body 1, and the industrial flue gas filter box 2 is arranged on the left side of the ozone generator 3.
Referring to the attached drawings 1, 3 and 4, a slurry tank 101 is connected to the lower end of a desulfurization tower body 1, a discharge pipe 102 is connected to the upper end of the desulfurization tower body 1, an ozone pipe 301 is connected to an ozone generator 3, the ozone pipe 301 extends into the upper end of the slurry tank 101, an annular gas homogenizing pipe 302 is connected to the inner end of the ozone pipe 301, and a plurality of ozone exposure heads 303 are uniformly arranged on the lower surface of the annular gas homogenizing pipe 302. Further, ozone tube 301 is provided with first flow rate adjustment valve 304. Sufficient limestone is filled in the slurry tank 101, a motor mounting seat 4 is arranged on the front side of the slurry tank 101, a stirring motor 5 is fixed on the motor mounting seat 4, the end part of an output shaft of the stirring motor 5, which extends into the slurry tank 101, is connected with a rotating shaft 501, and a plurality of stirring rods 502 are arranged on the rotating shaft 501 in a staggered manner.
Referring to fig. 3, a first spray device 6 and a second spray device 7 are arranged in the desulfurization tower body 1 at intervals up and down, and a first cross-flow type sieve tray 103 and a second cross-flow type sieve tray 104 are respectively arranged above the first spray device 6 and the second spray device 7.
Specifically, referring to fig. 5 and fig. 6, the first spraying device 6 and the second spraying device 7 each include a water pump 601 and a water pumping pipe 602, a water inlet end of the water pump 601 is connected to an external water source, the water pumping pipe 602 is connected to a water outlet end of the water pump 601, an end of the water pumping pipe 602 is connected to a horizontal spraying main pipe 603, the horizontal spraying main pipe 603 is connected to a plurality of spraying branch pipes 604, and a plurality of atomizing nozzles 605 are uniformly disposed on a lower surface of each spraying branch pipe 604. And the horizontal spraying main pipes 603 on the first spraying device 6 and the second spraying device 7 are vertically staggered in space. Wherein, the first flow-through sieve tray 103 and the second flow-through sieve tray 104 are circular plates consistent with the inner wall of the desulfurization tower body 1, and multiple flow holes are uniformly arranged on the circular plates.
Referring to fig. 3 and fig. 7, a filtered flue gas inlet pipe 105 is connected to the desulfurization tower body 1 below the first flow-through sieve tray 103, an inverted cone cover 106 is connected to the inner end of the filtered flue gas inlet pipe 105, an arc-shaped cover face 107 is connected to the upper end of the inverted cone cover 106, and a large number of flue gas outlet holes 1071 are uniformly formed in the arc-shaped cover face 107. The outer end of the filtered flue gas inlet pipe 105 is communicated with the right side surface of the industrial flue gas filtering box 2, and a second flow regulating valve 207 is arranged at the position of the flue gas inlet pipe 201 close to the industrial flue gas filtering box 2.
Referring to fig. 1, fig. 2 and fig. 8, a flue gas inlet pipe 201 to be treated is connected to the left side surface of the industrial flue gas filtering tank 2, a filtering layer 202 is arranged at the left end of the inner cavity of the industrial flue gas filtering tank 2, a filtering impurity collecting region 203 is arranged between the filtering layer 202 and the left side wall of the industrial flue gas filtering tank 2, a filtering impurity collecting box 204 is arranged in the filtering impurity collecting region 203 in a pulling manner, and a heat exchange mechanism 8 is arranged in the industrial flue gas filtering tank 2 on the right side of the filtering layer 202.
Specifically, referring to fig. 1, fig. 2 and fig. 9, the heat exchange mechanism 8 includes a water storage and heat preservation tank 801 disposed at the rear side of the industrial flue gas filtration tank 2 and a first water pump 802 disposed at the front side of the industrial flue gas filtration tank 2, a water inlet end of the first water pump 802 is connected to an external water source, a water outlet end of the first water pump 802 is connected to a water inlet pipe 803 extending into an inner cavity of the industrial flue gas filtration tank 2, an end of the water inlet pipe 803 is connected to an S-shaped metal heat exchange tube 804, a water outlet pipe 805 is connected to a lower end of the S-shaped metal heat exchange tube 804, the water outlet pipe 805 is communicated with the water storage and heat preservation tank 801, the S-shaped metal heat exchange tube 804 is provided with a plurality of heat exchange fins 806, the plurality of heat exchange fins. Wherein, the S-shaped metal heat exchange tube and the heat exchange fin are both made of copper or aluminum.
Referring to fig. 8 and 10, the filter layer 202 in this embodiment 2 is a filter net with a pore size of 0.1 to 0.3 mm. And a filter layer anti-clogging cleaning device 9 is arranged in the industrial flue gas filter box 2 between the filter layer 202 and the heat exchange mechanism 8.
Wherein, the cleaning device 9 is prevented blockking up including setting up driving motor 901 at industrial flue gas rose box 2 leading flank, the end connection that driving motor 901 pivot stretches into the industrial flue gas rose box 2 inner chamber has first bull stick 902, be provided with incomplete gear 903 on the first bull stick 902, be provided with second bull stick 904 under being located first bull stick 902, both ends rotate with the bearing frame on the inner wall around the industrial flue gas rose box 2 respectively around the second bull stick 904, be provided with complete gear 905 with incomplete gear 903 matched with on the second bull stick 904, both ends all are provided with torsional spring 98 around the second bull stick 904, the outer end of torsional spring 908 is connected with the bearing frame on the inner wall of industrial flue gas rose box 2, be connected with rotor arm 906 on the second bull stick 904, the end connection of rotor arm 906 has the striking head 907.
Specifically, in this embodiment 2, the number of the incomplete gears 903 provided on the first rotating rod 902 is two, and the incomplete gears are distributed at the front end and the rear end of the first rotating rod 902, and the number of the complete gears 905 provided on the second rotating rod 904 is also two, and corresponds to each incomplete gear 904.
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 and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a steel sintering, pelletizing industry flue gas desulphurization unit, its characterized in that, includes desulfurization tower body (1), industry flue gas rose box (2) and ozone generator (3), its characterized in that, ozone generator (3) set up the left side at desulfurization tower body (1), industry flue gas rose box (2) set up the left side at ozone generator (3).
2. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: wherein, the lower extreme of desulfurization tower body (1) is connected with thick liquid pond (101), the upper end of desulfurization tower body (1) is connected with delivery pipe (102), be connected with ozone pipe (301) on ozone generator (3), ozone pipe (301) stretches into the upper end setting of thick liquid pond (101), the inner of ozone pipe (301) is connected with equal trachea of annular (302), the lower surface of equal trachea of annular (302) evenly is provided with a plurality of ozone exposure head (303), it has the lime stone to fill in thick liquid pond (101), the front side of thick liquid pond (101) is provided with motor mount pad (4), be fixed with agitator motor (5) on motor mount pad (4), the end connection that the output shaft of agitator motor (5) stretched into thick liquid pond (101) has pivot (501), the dislocation is provided with a plurality of puddlers (502) on pivot (501), a first spraying device (6) and a second spraying device (7) are arranged in the desulfurization tower body (1) at intervals up and down, and a first cross-flow sieve plate tray (103) and a second cross-flow sieve plate tray (104) are respectively arranged above the first spraying device (6) and the second spraying device (7);
a filtered flue gas inlet pipe (105) is connected to the desulfurization tower body (1) below the first flow-through sieve plate tray (103), the inner end of the filtered flue gas inlet pipe (105) is connected with an inverted cone-shaped cover (106), the upper end of the inverted cone-shaped cover (106) is connected with an arc-shaped cover surface (107), and a large number of smoke outlet holes (1071) are uniformly formed in the arc-shaped cover surface (107);
the outer end of the filtered flue gas inlet pipe (105) is communicated with the right side face of an industrial flue gas filtering box (2), the left side face of the industrial flue gas filtering box (2) is connected with a flue gas inlet pipe (201) to be treated, the left end of the inner cavity of the industrial flue gas filtering box (2) is provided with a filtering layer (202), a filtering impurity collecting area (203) is arranged between the filtering layer (202) and the left side wall of the industrial flue gas filtering box (2), a filtering impurity collecting box (204) is arranged in the filtering impurity collecting area (203) in a pulling mode, and a heat exchange mechanism (8) is arranged in the industrial flue gas filtering box (2) on the right side of the filtering layer (202);
wherein the heat exchange mechanism (8) comprises a water storage and heat preservation tank (801) arranged at the rear side of the industrial flue gas filtering tank (2) and a first water pump (802) arranged at the front side of the industrial flue gas filtering tank (2), the water inlet end of the first water pump (802) is connected with an external water source, the water outlet end of the first water pump (802) is connected with a water inlet pipe (803) extending into the inner cavity of the industrial flue gas filter box (2), the end of the water inlet pipe (803) is connected with an S-shaped metal heat exchange pipe (804), the lower end part of the S-shaped metal heat exchange tube (804) is connected with a water outlet tube (805), the water outlet pipe (805) is communicated with the water storage heat preservation tank (801), the S-shaped metal heat exchange pipe (804) is provided with a plurality of heat exchange fins (806), the heat exchange fins (806) are vertically arranged at intervals, and the S-shaped metal heat exchange pipe (804) penetrates through the heat exchange fins (806) for multiple times;
a filter layer anti-blocking cleaning device (9) is arranged in the industrial flue gas filtering box (2) between the filter layer (202) and the heat exchange mechanism (8), wherein the filter layer anti-blocking cleaning device (9) comprises a driving motor (901) arranged on the front side surface of the industrial flue gas filtering box (2), the end part of a rotating shaft of the driving motor (901) extending into the inner cavity of the industrial flue gas filtering box (2) is connected with a first rotating rod (902), an incomplete gear (903) is arranged on the first rotating rod (902), a second rotating rod (904) is arranged under the first rotating rod (902), the front end and the rear end of the second rotating rod (904) are respectively and rotatably connected with bearing seats on the front inner wall and the rear inner wall of the industrial flue gas filtering box (2), a complete gear (905) matched with the incomplete gear (903) is arranged on the second rotating rod (904), torsion springs (98) are arranged at the front end and the rear end of the second rotating rod (904), the outer end of the torsion spring (908) is connected with a bearing seat on the inner wall of the industrial flue gas filtering box (2), the second rotating rod (904) is connected with a rotating arm (906), the end part of the rotating arm (906) is connected with a knocking head (907), and the ozone pipe (301) is provided with a first flow regulating valve (304).
3. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: first spray set (6) and second spray set (7) all include a suction pump (601) and a drinking-water pipe (602), the end of intaking of suction pump (601) is connected with external water source, drinking-water pipe (602) are connected with the play water end of suction pump (601), the end connection of drinking-water pipe (602) has the level to spray and is responsible for (603), the level sprays and is connected with a plurality of branch pipes (604) that spray on being responsible for (603), every the lower surface of branch pipe (604) that sprays evenly is provided with a plurality of atomizer (605).
4. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 3, characterized in that: the horizontal spraying main pipes (603) on the first spraying device (6) and the second spraying device (7) are vertically arranged in a staggered manner in space.
5. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: the first flow-through sieve plate tray (103) and the second flow-through sieve plate tray (104) are circular plates consistent with the inner wall of the desulfurization tower body (1), and multiple flow holes are uniformly formed in the circular plates.
6. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: and a second flow regulating valve (207) is arranged at the part of the flue gas inlet pipe (201) close to the industrial flue gas filtering box (2).
7. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: the filter layer (202) is a filter screen with the aperture of 0.1-0.3 mm.
8. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: the front side surface of the ozone generator (3) is provided with a display screen and a control switch.
9. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: the S-shaped metal heat exchange tube (804) and the heat exchange fin (806) are both made of copper or aluminum.
10. The flue gas desulfurization device for steel sintering and pelletizing industry as claimed in claim 2, characterized in that: incomplete gears (903) arranged on the first rotating rod (902) are two and distributed at the front end and the rear end of the first rotating rod (902), and complete gears (905) arranged on the second rotating rod (904) are also two and correspond to each incomplete gear (904).
CN202011374166.1A 2020-11-30 2020-11-30 Flue gas desulfurization device for steel sintering and pelletizing industry Pending CN112717651A (en)

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CN113521989A (en) * 2021-06-02 2021-10-22 王玉祥 Industrial flue gas desulfurization tower
CN114225666A (en) * 2021-12-27 2022-03-25 江苏索普工程科技有限公司 Food level carbon dioxide retrieves with high-efficient desulfurizing tower of turbulent flow

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CN210303122U (en) * 2019-08-08 2020-04-14 潍坊腾发玻璃钢有限公司 Ammonia desulphurization equipment
CN211706213U (en) * 2020-01-13 2020-10-20 佛山市三水区创琪服装有限公司 Air suction and dust removal device of rewinding machine for clothing production

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CN207076284U (en) * 2017-08-07 2018-03-09 永清环保股份有限公司 A kind of steel sintering, pelletizing desulfurizing industrial fume device
CN209049223U (en) * 2018-10-27 2019-07-02 喻东梅 A kind of part flow arrangement of thermal power plant desulfurization
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113521989A (en) * 2021-06-02 2021-10-22 王玉祥 Industrial flue gas desulfurization tower
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CN114225666A (en) * 2021-12-27 2022-03-25 江苏索普工程科技有限公司 Food level carbon dioxide retrieves with high-efficient desulfurizing tower of turbulent flow

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