CN214635079U

CN214635079U - Super clean emission processing apparatus of sintering flue gas

Info

Publication number: CN214635079U
Application number: CN202120365320.2U
Authority: CN
Inventors: 崔世坤; 辛红旗; 国忠; 刘庆国; 赵立水; 姜元一
Original assignee: Hebei Zongheng Group Fengnan Steel Co Ltd
Current assignee: Hebei Zongheng Group Fengnan Steel Co Ltd
Priority date: 2021-02-09
Filing date: 2021-02-09
Publication date: 2021-11-09
Anticipated expiration: 2031-02-09

Abstract

The utility model relates to the technical field of flue gas emission treatment devices, in particular to a sintering flue gas ultra-clean emission treatment device, which comprises two chimneys and two electric field electrostatic dust collectors, the electric field electrostatic dust collectors are communicated with a flue gas inlet pipeline and a main shaft fan, the main shaft fan is communicated with a flue gas heat exchanger, the flue gas heat exchanger is communicated with a booster fan, the booster fan is communicated with an active coke flue gas purification treatment system, the active coke flue gas purification treatment system is communicated with a bag-type dust remover, the bag-type dust remover is communicated with a GGH heat exchanger, the GGH heat exchanger is communicated with a hot blast stove, the hot blast stove is communicated with an SCR reactor device, the SCR reactor device is communicated with the chimneys, a dust removal mechanism is arranged in the chimneys, a driving motor is arranged outside the chimneys, the driving motor is connected with the dust removal mechanism, the purification effect is better, the secondary pollution generated in the sintering flue gas treatment process is less, the chimneys are less in dust accumulation and dust hanging after long-up, the cleaning is easier and the operation is more stable.

Description

Super clean emission processing apparatus of sintering flue gas

Technical Field

The utility model relates to a fume emission processing apparatus technical field specifically is a super clean emission processing apparatus of sintering flue gas.

Background

As is known, the ultra-clean emission treatment device for sintering flue gas is an auxiliary device which is used for purifying sintering flue gas in the sintering flue gas treatment process so as to facilitate the emission of sintering flue gas with less pollution, and is widely used in the field of flue gas treatment.

The existing sintering flue gas treatment process comprises wet desulfurization, semi-dry desulfurization, SCR denitration and SNCR denitration, wherein the wet method, the semi-dry desulfurization process produces a large amount of solid wastes such as waste water and gypsum, the post-treatment difficulty is great, waste water and solid wastes can cause secondary pollution to the environment and the denitration effect is poor, the existing sintering flue gas emission treatment device comprises a spray purification tower, the spray purification tower is communicated with an air inlet pipe and an air outlet pipe, the air outlet pipe is communicated with a chimney, when the existing sintering flue gas emission treatment device is used, the spray purification tower is firstly started, then the flue gas required to be purified is introduced into the spray purification tower through the air inlet pipe to be purified, and the flue gas treated by the spray purification tower is discharged through the chimney.

However, the above prior art still has the following defects that the waste water generated in the sintering flue gas purification process is easy to cause secondary pollution to the environment, the purification effect is poor, and meanwhile, the chimney is easy to hang dust after being used for a long time, the cleaning is difficult, and the emission of the treated flue gas is easy to be influenced.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The not enough to prior art, the utility model provides a super clean emission treatment device of sintering flue gas, its purifying effect is better, and it is less to produce secondary pollution in the sintering flue gas treatment process, and the long-term deposition that uses of chimney simultaneously hangs the dirt less, and it is comparatively easy to clear up, and is lower to the sintering flue gas emission after handling influence, moves comparatively stably.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an ultra-clean emission treatment device of sintering flue gas, includes two chimneys, still includes two electric field electrostatic precipitator, electric field electrostatic precipitator intercommunication has into tobacco pipe and main shaft fan, and main shaft fan intercommunication has flue gas heat exchanger, flue gas heat exchanger intercommunication has booster fan, and booster fan intercommunication has active burnt flue gas purification processing system, and active burnt flue gas purification processing system intercommunication has the sack cleaner, and the sack cleaner intercommunication has the GGH heat exchanger, and GGH heat exchanger intercommunication has the hot-blast furnace, and the hot-blast furnace intercommunication has SCR reactor device, SCR reactor device through join the pipe with the chimney intercommunication, install dust removal mechanism in the chimney, install driving motor outside the chimney, driving motor pass through bevel gear with dust removal mechanism connects.

Preferably, the dust removing mechanism comprises a support ring and a plurality of scraping rings, the support ring is fixedly connected with the chimney, a vertical shaft is connected in the support ring in a rotating mode, a conical tooth ring and a plurality of driving rings are fixedly connected to the vertical shaft, the conical tooth ring is meshed with the bevel gears, the scraping rings are all in sliding connection with the chimney, every two adjacent scraping rings of the scraping rings are fixedly connected through a left connecting rod and a right connecting rod, and a driving rod is fixedly connected to the right connecting rod.

Preferably, a support frame is fixedly connected in the chimney, and the vertical shaft is rotatably connected with the support frame.

Preferably, the driving rod is rotatably connected with a driving ball.

Preferably, the top end of the chimney is fixedly connected with a conical cap.

Preferably, the chimney is provided with an ash removal port, and a closed door is installed in the ash removal port.

Preferably, the closing door is provided with a pull groove.

Preferably, an induced draft fan is installed on the confluence pipe.

(III) advantageous effects

Compared with the prior art, the utility model provides a super clean emission treatment device of sintering flue gas possesses following beneficial effect:

1. this super clean emission processing apparatus of sintering flue gas through the cooperation of electric field electrostatic precipitator, gas heat exchanger, active burnt gas purification processing system, sack cleaner and SCR reactor device, is convenient for carry out multiple system purification step by step to the sintering flue gas, and sintering flue gas purifying effect is better, and the secondary pollution that produces is less among the gas cleaning process, and is comparatively practical.

2. This super clean emission processing apparatus of sintering flue gas, through being connected of dust removal mechanism and chimney, be convenient for strike off hanging ash and laying dust in the chimney, the laying ash hangs the dirt less in the chimney use, and sintering flue gas emission stability after the processing is better, through being connected of driving motor and bevel gear, is convenient for drive vertical axis's rotation to be convenient for drive dust removal mechanism for the reciprocating motion of chimney, and then realize the clearance of chimney, it is comparatively practical.

Drawings

Fig. 1 is a schematic view of a partially cut-away three-dimensional structure of the present invention;

FIG. 2 is a schematic view of a portion of the enlarged structure of FIG. 1;

FIG. 3 is a schematic view of a portion of the enlarged structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic view of the overall three-dimensional structure of the present invention.

In the figure: 1. a chimney; 2. an electric field electrostatic precipitator; 3. a smoke inlet pipeline; 4. a main shaft fan; 5. a flue gas heat exchanger; 6. a booster fan; 7. an active coke flue gas purification treatment system; 8. a bag-type dust collector; 9. a GGH heat exchanger; 10. a hot blast stove; 11. an SCR reactor device; 12. a junction pipe; 13. a drive motor; 14. a bevel gear; 15. a support ring; 16. scraping rings; 17. a vertical axis; 18. a conical gear ring; 19. a drive ring; 20. a left connecting rod; 21. a right connecting rod; 22. a drive rod; 23. a support frame; 24. a drive ball; 25. a conical cap; 26. a closing door; 27. an induced draft fan.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-4, an ultra-clean emission treatment device for sintering flue gas comprises two chimneys 1 and two electric field electrostatic dust collectors 2 for collecting dust of sintering flue gas, wherein the electric field electrostatic dust collectors 2 are communicated with a flue gas inlet pipe 3 and a main shaft fan 4 for feeding flue gas and conveying flue gas, the main shaft fan 4 is communicated with a flue gas heat exchanger 5 for cooling the sintering flue gas, the flue gas heat exchanger 5 is communicated with a booster fan 6 for pressing the cooled sintering flue gas into an active coke flue gas purification treatment system 7, the booster fan 6 is communicated with an active coke flue gas purification treatment system 7 for comprehensive treatment of harmful substances such as dust, sulfur dioxide, nitrogen oxides and heavy metals on the sintering flue gas, and the device is relatively practical, the active coke flue gas purification treatment system 7 is communicated with a bag-type dust collector 8 for secondary deep dust removal on the sintering flue gas, the bag-type dust collector 8 is communicated with a GGH heat exchanger 9 for facilitating heat supplementation of sintering flue gas after secondary deep dust removal, the GGH heat exchanger 9 is communicated with a hot blast stove 10 for facilitating heating of the sintering flue gas, the hot blast stove 10 is communicated with an SCR reactor device 11 for facilitating denitration treatment of the sintering flue gas, the sintering flue gas purification effect is good, secondary pollution generated in the flue gas purification process is less and practical, the SCR reactor device 11 is communicated with a chimney 1 through a converging pipe 12, a dust removal mechanism is installed in the chimney 1, a driving motor 13 is installed outside the chimney 1 for facilitating driving rotation of a vertical shaft 17, so that the dust removal mechanism can be conveniently driven to reciprocate relative to the chimney 1, the chimney 1 can be cleaned, the driving motor 13 is practical, the driving motor 13 is connected with the dust removal mechanism through a bevel gear 14, the dust removal mechanism comprises a support ring 15 and a plurality of scraping rings 16, the support ring 15 is fixedly connected with the chimney 1, support ring 15 internal rotation is connected with vertical axis 17, fixedly connected with awl ring gear 18 and a plurality of drive ring 19 on the vertical axis 17, awl ring gear 18 meshes with bevel gear 14 mutually, a plurality of scraping rings 16 all with chimney 1 sliding connection, all through left connecting rod 20 and right connecting rod 21 fixed connection between every adjacent two scraping rings 16 of a plurality of scraping rings 16, fixedly connected with actuating lever 22 on the right connecting rod 21, be convenient for strike off hanging ash and laying dust in the chimney 1, laying ash hangs the dirt less in the chimney 1 use, sintering flue gas emission stability after the processing is better.

It should also be noted that fixedly connected with support frame 23 in chimney 1, the vertical axis 17 rotates with support frame 23 to be connected, be convenient for stable and support vertical axis 17, vertical axis 17 rotates the in-process and rocks less, it is connected with drive ball 24 to rotate on the actuating lever 22, it realizes reciprocating of actuating lever 22 to be convenient for cooperate the drive ring 19, the top fixedly connected with taper cap 25 of chimney 1, be convenient for improve the protection to the inside of chimney 1, the protecting effect is better, the deashing mouth has been seted up on chimney 1, install sealing door 26 in the deashing mouth, be convenient for clear up the dust that gathers to the inside of chimney 1, it is more practical, the kerve has been seted up on sealing door 26, be convenient for open sealing door 26, install draught fan 27 on converging pipe 12, be convenient for handle the discharge of the sintering flue gas after accomplishing, and be more practical.

The electric field electrostatic dust collector 2, the main shaft fan 4, the flue gas heat exchanger 5, the booster fan 6, the active coke flue gas purification treatment system 7, the bag-type dust collector 8, the GGH heat exchanger 9, the hot blast stove 10, the driving motor 13 and the induced draft fan 27 are conventional devices which are purchased from the market and are well known to those skilled in the art, the electric field electrostatic dust collector 2 is of a type DJGYJD06, the main shaft fan 4 and the booster fan 6 are of a type BF-I-2.0-4P, the flue gas heat exchanger 5 is of a type HU05, the active coke flue gas purification treatment system 7 is of a type QH-YTJ, the bag-type dust collector 8 is of a type XD-II-8, the GGH heat exchanger 9 is of 33.5GVN600, the hot blast stove 10 is of a type WY-0537, the driving motor 13 is of a type 5IK120RGN-CF, the induced draft fan 27 is of a type CY200, and the electric field electrostatic dust collector is only used in the patent, the structure and the function of the electric field electrostatic dust collector are not improved, the setting mode, the installation mode and the electric connection mode are adopted, for the technical personnel in the field, the debugging operation can be carried out according to the requirements of the use specification, the description is not repeated, the electric field electrostatic dust collector 2, the main shaft fan 4, the flue gas heat exchanger 5, the booster fan 6, the active coke flue gas purification treatment system 7, the bag-type dust collector 8, the GGH heat exchanger 9, the hot blast stove 10, the driving motor 13 and the induced draft fan 27 are all provided with control switches matched with the control switches, the installation positions of the control switches are selected according to the actual use requirements, and the operation and the control can be conveniently carried out by the operators.

In summary, the working principle and working process of the sintering flue gas ultra-clean emission treatment device are that, when in use, the sintering flue gas ultra-clean emission treatment device is firstly fixed and built at a place to be used, the sintering flue gas is introduced into the flue gas inlet pipeline 3, the sintering flue gas entering the flue gas pipeline sequentially passes through the electric field electrostatic dust collector 2, the spindle fan 4, the flue gas heat exchanger 5, the booster fan 6, the active coke flue gas purification treatment system 7, the bag-type dust collector 8, the GGH heat exchanger 9, the hot blast stove 10 and the SCR reactor device 11 to realize multi-system step-by-step purification of the sintering flue gas, and finally the sintering flue gas is introduced to the chimney 1 through the draught fan 27 to be discharged into the atmosphere, so that the sintering flue gas treatment effect is good, the emission pollution is small, the secondary pollution is low, and the device is practical, the driving motor 13 is started in a step manner in the sintering flue gas treatment process, the driving motor 13 realizes the rotation of the vertical shaft 17 through the matching of the bevel gear 14 and the bevel gear ring 18, the vertical shaft 17 rotates to drive the driving ring 19 to rotate, the driving ring 19 drives the driving rod 22 to move through the driving ball 24, the driving rod 22 drives the scraping ring 16 to reciprocate up and down relative to the chimney 1 through the right connecting rod 21, accordingly, the cleaning of dust deposition and falling inside the chimney 1 is realized, the sealing door 26 is periodically opened to clean accumulated dust in the chimney 1, the operation stability of the chimney 1 is kept, and the cleaning is easy and practical.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an ultra-clean emission treatment device of sintering flue gas, includes two chimneys (1), its characterized in that: the device also comprises two electric field electrostatic dust collectors (2), the electric field electrostatic dust collectors (2) are communicated with a smoke inlet pipeline (3) and a main shaft fan (4), the main shaft fan (4) is communicated with a smoke heat exchanger (5), the flue gas heat exchanger (5) is communicated with a booster fan (6), the booster fan (6) is communicated with an active coke flue gas purification treatment system (7), the active coke flue gas purification treatment system (7) is communicated with a bag-type dust remover (8), the bag-type dust remover (8) is communicated with a GGH heat exchanger (9), the GGH heat exchanger (9) is communicated with a hot blast stove (10), the hot blast stove (10) is communicated with an SCR reactor device (11), the SCR reactor device (11) is communicated with the chimney (1) through a confluence pipe (12), a dust removal mechanism is arranged in the chimney (1), a driving motor (13) is arranged outside the chimney (1), the driving motor (13) is connected with the dust removing mechanism through a bevel gear (14).

2. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 1, wherein: the dedusting mechanism comprises a support ring (15) and a plurality of scraping rings (16), the support ring (15) is fixedly connected with the chimney (1), a vertical shaft (17) is connected in the support ring (15) in a rotating mode, a taper gear ring (18) and a plurality of driving rings (19) are fixedly connected to the vertical shaft (17), the taper gear ring (18) is meshed with the bevel gear (14), the scraping rings (16) are connected with the chimney (1) in a sliding mode, every two adjacent scraping rings (16) of the scraping rings (16) are fixedly connected through a left connecting rod (20) and a right connecting rod (21), and a driving rod (22) is fixedly connected to the right connecting rod (21).

3. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 2, wherein: a support frame (23) is fixedly connected in the chimney (1), and the vertical shaft (17) is rotatably connected with the support frame (23).

4. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 3, wherein: the driving rod (22) is rotatably connected with a driving ball (24).

5. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 4, wherein: the top end of the chimney (1) is fixedly connected with a conical cap (25).

6. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 5, wherein: an ash cleaning opening is formed in the chimney (1), and a closed door (26) is installed in the ash cleaning opening.

7. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 6, wherein: the closed door (26) is provided with a pull groove.

8. The ultra-clean emission treatment device for the sintering flue gas as claimed in claim 7, wherein: and an induced draft fan (27) is installed on the converging pipe (12).