CN216856025U

CN216856025U - Coke oven gas utilization and flue gas treatment system of coking plant

Info

Publication number: CN216856025U
Application number: CN202220565563.5U
Authority: CN
Inventors: 詹承林; 李贵华; 黄天明; 段燕飞; 李明玉
Original assignee: Qujing Dawei Coking Gas Supply Co ltd
Current assignee: Qujing Dawei Coking Gas Supply Co ltd
Priority date: 2022-03-15
Filing date: 2022-03-15
Publication date: 2022-07-01
Anticipated expiration: 2032-03-15

Abstract

The utility model relates to the technical field of coke oven coal, and particularly discloses a coke oven gas utilization and flue gas treatment system of a coke-oven plant, which comprises a coke oven body, a gas treatment device, a coke oven gas cabinet and a dust removal device, wherein the gas treatment device, the coke oven gas cabinet and the dust removal device are communicated with the coke oven body; the dust removal device can effectively filter large granular impurities doped in smoke through the plurality of filtering holes formed in the fixing frame, and can prevent the impurities from being adhered to the filtering holes for a long time through continuous sweeping of the bristles, so that the large granular impurities can be prevented from entering the dust removal device, the dust removal efficiency of the dust removal device is improved, and the normal operation of a downstream device is ensured.

Description

Coke oven gas utilization and flue gas treatment system of coking plant

Technical Field

The utility model relates to the technical field of coke oven coal, in particular to a coke oven gas utilization and flue gas treatment system of a coke-oven plant.

Background

Coke ovens, a furnace typically built of refractory bricks and refractory blocks, are used to char coal to produce coke.

The technical proposal recorded in the Chinese patent publication 'coke oven gas utilization and flue gas treatment system of coke-oven plant' (publication number: CN206875996U) discloses: the coke oven gas utilization and flue gas treatment system and the treatment method thereof in the coke oven plant are characterized in that a raw coke oven gas outlet of the coke oven is connected with the gas treatment device through a pipeline; a gas outlet of the gas treatment device is communicated with the coke oven gas boiler through a pipeline; the flue gas outlet of the coke oven is communicated with the chimney through a coke oven waste gas flue I, and the flue gas outlet of the coke oven is also communicated with a high-temperature flue of the coke oven gas boiler through a coke oven waste gas flue II so as to mix the coke oven waste gas into the high-temperature flue of the coke oven gas boiler; and the high-temperature flue of the coke oven gas boiler is communicated with the denitration device, the waste heat recovery flue, the draught fan, the desulfurization device and the chimney in sequence through pipelines. The utility model effectively controls the emission of SO2 and NOX while efficiently utilizing the coke oven gas, overcomes a plurality of treatment difficulties of the coke oven flue gas and ensures the safe operation of the coke oven. However, in the use process of the technical scheme, the dust remover is directly arranged on the flue of the coke oven waste gas, so that the coke oven waste gas directly enters the dust remover, and when large-particle impurities exist in the waste gas, the normal work of the dust remover can be seriously influenced, and even the normal operation of a downstream process is influenced. Therefore, aiming at the problems in the prior art, a coke oven gas utilization and flue gas treatment system of a coke-oven plant is designed.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a coke oven gas utilization and flue gas treatment system of a coke-oven plant.

The coke oven gas utilization and flue gas treatment system comprises a coke oven body, a gas treatment device, a coke oven gas cabinet and a dust removal device, wherein the gas treatment device, the coke oven gas cabinet and the dust removal device are communicated with the coke oven body; a fixing frame with an opening structure at the bottom is further fixed on the side surface of the hollow flow guide frame, filter holes are uniformly formed in the surface of the fixing frame, which is far away from one side of the hollow flow guide frame, and the bristles are attached to the filter holes; the side surface of the hollow flow guide frame is also communicated with a cigarette outlet; the coke oven body is also communicated with the coal gas treatment device and the coke oven gas cabinet through a first pipeline.

As a further improvement of the utility model, the second pipeline comprises a hose and a hard pipe, the hose is communicated with the coke oven body, and an air outlet port of the hard pipe is communicated with an inner cavity of the hollow flow guide frame.

Above-mentioned technical scheme, the design of hose does benefit to the activity of hollow water conservancy diversion frame.

As a further improvement of the utility model, a plurality of cigarette outlets are fixed on the surface of the hollow flow guide frame, and the cigarette outlets of the cigarette outlets are all arranged in the inner cavity of the fixing frame.

Above-mentioned technical scheme, a plurality of cigarette ends can guarantee that the flue gas is even flows in fixed frame, improves the filter effect.

As a further improvement of the utility model, a sealing groove is formed in the side surface of the filter box, a sealing block is fixed on the surface of the hollow flow guide frame, and the hollow flow guide frame is fixed in the sealing groove of the filter box in a clamping manner through the sealing block; the opening part of the filter box is further fixed with a sealing plate through a bolt, the threaded end of the bolt penetrates through the sealing block and then extends into the inner cavity of the filter box, and the side face of the sealing plate is tightly attached to the hollow flow guide frame.

Above-mentioned technical scheme, can precious the leakproofness of whole rose box, guaranteed the stability of hollow water conservancy diversion frame on the rose box simultaneously.

As a further improvement of the utility model, the bottom of the filter box and the position corresponding to the bristles are also integrally formed with a collecting frame, the top of the inner cavity of the collecting frame is fixed with an inclined guide plate, the side surface and the bottom of the collecting frame are respectively communicated with a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both provided with valves.

Above-mentioned technical scheme, the guide plate is favorable to carrying out the water conservancy diversion to the impurity that drops, makes things convenient for the water conservancy diversion to collect the frame in, and inlet tube and outlet pipe are favorable to collecting the input and the output at frame water source, conveniently take away impurity.

As a further improvement of the utility model, a smoke collecting hood is also fixed on the right side of the inner cavity of the filter box, a smoke outlet of the smoke collecting hood is communicated with a third pipeline, and the third pipeline is communicated with a dust removal device.

Above-mentioned technical scheme, collection petticoat pipe is favorable to the concentration of flue gas, conveniently discharges through the third pipeline.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, through the structures of the filtering frame, the hollow flow guide frame, the driving motor, the cigarette outlet head, the brush hair, the fixing frame and the like designed on the pipeline before the smoke enters the dust removal device, large granular impurities doped in the smoke can be effectively filtered through the filtering holes formed in the fixing frame, and can be prevented from being adhered to the filtering holes for a long time through continuous sweeping of the brush hair, so that the large granular impurities can be prevented from entering the dust removal device, the dust removal efficiency of the dust removal device is improved, the normal operation of a downstream device is ensured, and the large granular impurities swept from the filtering holes can be collected by the aid of the collection frame designed in a matching manner, so that the large granular impurities can be temporarily stored, and the effect of facilitating subsequent uniform treatment is achieved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic sectional front view of a filter box according to the present invention;

FIG. 2 is a schematic view of a partial flow structure of the present invention;

FIG. 3 is a schematic view of the filter box of the present invention in a disassembled configuration;

fig. 4 is a schematic side view of the fixing block of the present invention.

In the figure: 1. a coke oven body; 2. a gas treatment device; 3. a coke oven gas cabinet; 4. a dust removal device; 5. a filter box; 501. a sealing groove; 6. a first conduit; 7. a second conduit; 701. a hose; 702. a hard tube; 8. a third pipeline; 9. a hollow flow guide frame; 901. a sealing block; 10. a drive motor; 11. discharging cigarette ends; 12. a fixed block; 13. brushing; 14. a fixing frame; 1401. a filtration pore; 15. a sealing plate; 16. a collection frame; 17. a baffle; 18. a water inlet pipe; 19. a water outlet pipe; 20. a fume collecting hood.

Detailed Description

In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the various embodiments of the utility model. It should be understood, however, that these physical details should not be construed as limiting the utility model. That is, in some embodiments of the utility model, such physical details are not necessary. In addition, for simplicity, some conventional structures and components are shown in the drawings in a simplified schematic manner.

In addition, the descriptions related to the first, the second, etc. in the present invention are only used for description purposes, do not particularly refer to an order or sequence, and do not limit the present invention, but only distinguish components or operations described in the same technical terms, and are not understood to indicate or imply relative importance or implicitly indicate the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1-4, the coke oven gas utilization and flue gas treatment system of the coke-oven plant comprises a coke oven body 1, a gas treatment device 2 communicated with the coke oven body 1, a coke oven gas cabinet 3 and a dust removal device 4, wherein a filter box 5 is connected between the coke oven body 1 and the dust removal device 4 through a second pipeline 7, a hollow guide frame 9 is fixedly clamped at an opening of the filter box 5, a driving motor 10 is installed at one side of the hollow guide frame 9 close to an inner cavity of the filter box 5, a fixed block 12 is fixed on a power output shaft of the driving motor 10, and bristles 13 are equidistantly fixed on the fixed block 12; a fixing frame 14 with an open bottom is fixed on the side surface of the hollow flow guide frame 9, filter holes 1401 are uniformly formed in the surface of the fixing frame 14, which is far away from the hollow flow guide frame 9, and the bristles 13 are attached to the filter holes 1401; the side surface of the hollow flow guide frame 9 is also communicated with a cigarette outlet 11; the coke oven body 1 is also communicated with the coal gas treatment device 2 and the coke oven gas cabinet 3 through a first pipeline 6.

The second pipeline 7 comprises a hose 701 and a hard pipe 702, the hose 701 is communicated with the coke oven body 1, and an air outlet port of the hard pipe 702 is communicated with an inner cavity of the hollow flow guide frame 9; the design of the hose 701 is beneficial to the movement of the hollow diversion frame 9.

Go out cigarette end 11 and be fixed with a plurality ofly at the surface of hollow water conservancy diversion frame 9, and the mouth of cigarette that goes out cigarette end 11 all arranges the inner chamber of fixed frame 14 in, and a plurality of cigarette ends 11 can guarantee that the flue gas is even flows in fixed frame 14, improves the filter effect.

A sealing groove 501 is formed in the side face of the filter box 5, a sealing block 901 is fixed on the surface of the hollow flow guide frame 9, and the hollow flow guide frame 9 is clamped and fixed in the sealing groove 501 of the filter box 5 through the sealing block 901; a sealing plate 15 is further fixed at the opening of the filter box 5 through a bolt, the threaded end of the bolt penetrates through the sealing block 901 and then extends into the inner cavity of the filter box 5, and the side surface of the sealing plate 15 is tightly attached to the hollow flow guide frame 9; can precious whole rose box 5's leakproofness, guaranteed the stability of hollow water conservancy diversion frame 9 on rose box 5 simultaneously.

A collecting frame 16 is integrally formed at the bottom of the filter box 5 and at a position corresponding to the bristles 13, an inclined guide plate 17 is fixed at the top of an inner cavity of the collecting frame 16, a water inlet pipe 18 and a water outlet pipe 19 are respectively communicated with the side surface and the bottom of the collecting frame 16, and valves are respectively arranged on the water inlet pipe 18 and the water outlet pipe 19; the guide plate 17 is favorable for guiding the falling impurities, the guide is convenient to guide the impurities to the collecting frame 16, the water inlet pipe 18 and the water outlet pipe 19 are favorable for inputting and outputting water sources in the collecting frame 16, and the impurities are convenient to take away.

A smoke collecting cover 20 is also fixed on the right side of the inner cavity of the filter box 5, a smoke outlet of the smoke collecting cover 20 is communicated with a third pipeline 8, and the third pipeline 8 is communicated with the dust removal device 4; the fume collecting hood 20 is beneficial to the concentration of the fume and is convenient to discharge through the third pipeline 8.

When the utility model is used (working principle), the smoke enters the hollow guide frame 9 through the second pipeline 7 and uniformly enters the fixed frame 14 through the plurality of smoke outlets 11, at the moment, large particle impurities in the smoke are filtered by the plurality of filtering holes 1401 formed in the fixed frame 14, and the filtered smoke enters the third pipeline 8 through the smoke collecting hood 20;

the driving motor 10 is started, the power output shaft of the driving motor 10 drives the fixing block 12 to rotate, the fixing block 12 rotates to drive the brush bristles 13 to brush at the side of the filtering hole 1401 of the fixing frame 14, so that impurities adhered to the filtering hole 1401 are swept down and fall into the collecting frame 16 along the guide plate 17, and the temporary storage effect on the impurities is achieved through the collecting frame 16;

when parts in the filter box 5 need to be cleaned, the bolts on the sealing plates 15 are unscrewed, so that the sealing plates 15 are detached from the filter box 5, and then the hard pipes 702 are pulled outwards, so that the hollow guide frame 9 and the parts connected on the hollow guide frame 9 are driven to be separated from the filter box 5, and then the filter box 5 and the internal parts which are pulled out can be cleaned;

water is input into the collecting frame 16 through the water inlet pipe 18, so that the water is fused with impurities inside the collecting frame 16 and then is discharged through the water outlet pipe 19, and the effect of cleaning the collecting frame 16 can be achieved.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. Coke oven gas utilization and flue gas processing system of coke-oven plant, including coke oven body (1) and with coal gas processing apparatus (2), coke oven gas cabinet (3) and dust collector (4) of coke oven body (1) intercommunication, its characterized in that: a filter box (5) is connected between the coke oven body (1) and the dust removal device (4) through a second pipeline (7), a hollow flow guide frame (9) is fixedly clamped at an opening of the filter box (5), a driving motor (10) is installed on one side, close to an inner cavity of the filter box (5), of the hollow flow guide frame (9), a fixed block (12) is fixed on a power output shaft of the driving motor (10), and bristles (13) are equidistantly fixed on the fixed block (12);

a fixing frame (14) with an opening structure at the bottom is further fixed on the side surface of the hollow flow guide frame (9), filter holes (1401) are uniformly formed in the surface of the fixing frame (14) far away from one side of the hollow flow guide frame (9), and the bristles (13) are attached to the filter holes (1401);

the side surface of the hollow flow guide frame (9) is also communicated with a cigarette outlet (11).

2. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: the second pipeline (7) comprises a hose (701) and a hard pipe (702), the hose (701) is communicated with the coke oven body (1), and an air outlet port of the hard pipe (702) is communicated with an inner cavity of the hollow flow guide frame (9).

3. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: the cigarette outlet (11) is fixed on the surface of the hollow flow guide frame (9) in a plurality, and the cigarette outlet of the cigarette outlet (11) is arranged in the inner cavity of the fixed frame (14).

4. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: seal groove (501) have been seted up to the side of rose box (5), the fixed surface of hollow water conservancy diversion frame (9) has sealed piece (901), hollow water conservancy diversion frame (9) are fixed in seal groove (501) of rose box (5) through sealed piece (901) block.

5. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: the opening of the filter box (5) is further fixed with a sealing plate (15) through a bolt, the threaded end of the bolt penetrates through the sealing block (901) and then extends into the inner cavity of the filter box (5), and the side face of the sealing plate (15) is tightly attached to the hollow flow guide frame (9).

6. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: the utility model discloses a hair brush, including rose box (5), the bottom of rose box (5) and the position department that corresponds with brush hair (13) still integrated into one piece have collection frame (16), the inner chamber top of collecting frame (16) is fixed with guide plate (17) of slope, the side and the bottom of collecting frame (16) communicate respectively has inlet tube (18) and outlet pipe (19), and all are provided with the valve on inlet tube (18) and outlet pipe (19).

7. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: filter box (5) inner chamber right side still is fixed with collection petticoat pipe (20), the outlet flue intercommunication of collection petticoat pipe (20) has third pipeline (8), third pipeline (8) intercommunication dust collector (4).

8. The coke-oven plant coke oven gas utilization and flue gas treatment system of claim 1, characterized in that: the coke oven body (1) is also communicated with the coal gas treatment device (2) and the coke oven gas cabinet (3) through a first pipeline (6).