CN215654626U

CN215654626U - Flue gas desulfurization and denitrification system of asphalt mixing plant

Info

Publication number: CN215654626U
Application number: CN202122201688.8U
Authority: CN
Inventors: 王小芳; 陆金兴
Original assignee: Wuxi Taite Road Construction Machinery Co ltd
Current assignee: Wuxi Taite Road Construction Machinery Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-01-28
Anticipated expiration: 2031-09-13

Abstract

The utility model provides a bituminous mixing plant flue gas desulfurization denitration system, includes the spray column, spray column one side bottom fixed connection and intercommunication have the smoking pipeline, and spray column top fixed connection and intercommunication have a conveying pipe, and spray column one end fixed connection and intercommunication are kept away from to the conveying pipe have the rose box, and the rose box is kept away from spray column one side and is provided with the active carbon adsorption case, and active carbon adsorption case and rose box intercommunication, active carbon adsorption case keep away from rose box one side intercommunication and have the pipe of discharging fume, and beneficial effect is: the flue gas desulfurization and denitration treatment device is simple to operate and convenient to use, can effectively realize desulfurization and denitration treatment on flue gas, can effectively treat particulate matters and attached water in the flue gas when the flue gas is subjected to desulfurization and denitration treatment, effectively avoids the condition of poor flue gas treatment effect, can effectively clean the treatment partition plate, and effectively avoids the condition that the treatment effect is influenced by blockage of the treatment partition plate after the treatment partition plate is used for a long time.

Description

Flue gas desulfurization and denitrification system of asphalt mixing plant

Technical Field

The utility model relates to the technical field of asphalt mixing plants, in particular to a flue gas desulfurization and denitrification system of an asphalt mixing plant.

Background

The asphalt mixing plant, which may also be called as asphalt concrete mixing plant or asphalt concrete mixing plant, refers to a complete plant for mass production of asphalt concrete, which generates a large amount of smoke during the operation of the asphalt mixing plant, and needs to be denitrated when the asphalt mixing plant is discharged.

The existing flue gas desulfurization and denitration device is simple in structure mostly, particles in flue gas cannot be well treated, the filtering device is easy to block after being used for a long time, the filtering device cannot be replaced or cleaned quickly and effectively, and the using effect of equipment is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problems that most of the existing flue gas desulfurization and denitration devices are simple in structure, particles in flue gas cannot be well treated, a filtering device of the flue gas desulfurization and denitration device is easy to block after being used for a long time, and cannot be quickly and effectively replaced or cleaned, so that the using effect of equipment is seriously influenced.

The technical scheme adopted by the utility model for solving the technical problem is as follows: a flue gas desulfurization and denitrification system of an asphalt mixing plant comprises a spray tower, wherein the bottom of one side of the spray tower is fixedly connected and communicated with a smoke absorbing pipeline, the top of the spray tower is fixedly connected and communicated with a conveying pipe, one end of the conveying pipe, far away from the spray tower, is fixedly connected and communicated with a filter box, one side of the filter box, far away from the spray tower, is provided with an active carbon adsorption box, the active carbon adsorption box is communicated with the filter box, one side of the active carbon adsorption box, far away from the filter box, is communicated with a smoke exhaust pipe, a water feeding pipeline is arranged above one side of the spray tower, close to the smoke absorbing pipeline, is fixedly connected and communicated with the bottom of one side of the spray tower, is provided with a flow dividing pipe, one end of the flow dividing pipe, close to the spray tower, penetrates through the spray tower and is fixedly connected with the spray tower, the bottom of the flow dividing pipe is fixedly connected and communicated with a plurality of spray nozzles, one side of the spray tower, far away from the smoke absorbing pipeline, is fixedly connected and communicated with a circulating flow guiding pipe, the spray tower is kept away from to the circulation honeycomb duct one end and conveying pipe fixed connection and intercommunication, conveying pipe standpipe bottom outside cover is equipped with the control valve, the control valve is located circulation honeycomb duct below.

As a preferred technical scheme of the utility model: the utility model discloses a flue gas spraying treatment device, including spray tower inner wall, treatment baffle, effectual improvement to the flue gas, be provided with above spray tower inner wall middle part and handle the baffle, handle baffle and spray tower inner wall fixed connection, can effectually spray the moisture and the great particulate matter that carry after finishing to the flue gas through handling the baffle and carry out effectual separation and handle, the effectual improvement is to the treatment effect of flue gas.

As a preferred technical scheme of the utility model: the utility model discloses a spray tower, including spray tower, water supply pipeline, No. two reposition of redundant personnel pipelines are close to spray tower one end and run through the spray tower and with spray tower fixed connection, No. two a plurality of No. two shower nozzles of reposition of redundant personnel pipeline bottom fixedly connected with, No. two reposition of redundant personnel pipelines are close to water supply pipeline one end outside cover and are equipped with the stop valve, stop valve and spray tower fixed connection can effectively shunt No. two shower nozzles to corresponding through No. two reposition of redundant personnel pipelines, make each No. two shower nozzles can effectually erode the washing to handling the baffle, effectually avoided handling the baffle and appear blocking up the condition that influences the treatment effect easily in long-term use, can effectually carry out effectual control to the circulation speed and the flow size of No. two reposition of redundant personnel pipelines through the stop valve.

As a preferred technical scheme of the utility model: spray column inner wall bottom fixedly connected with bottom plate, spray column inner wall bottom is kept away from bottom plate one side and is provided with the pump body, the pump body is kept away from bottom plate one side fixed connection and intercommunication and has No. one tub, No. one tub is kept away from pump body one end and is run through the spray column, can effectually with spray column bottom ponding water conservancy diversion to pump body department through the bottom plate, can effectually carry bottom sewage to the recovery processing incasement through a tub for it can continue reuse after handling, the effectual waste of avoiding the resource.

As a preferred technical scheme of the utility model: filter tank inner wall top and the equal fixedly connected with installation rail in bottom both sides, dismantle respectively between per two corresponding installation rails and be connected with a filter screen and No. two filter screens, per two correspond the installation rail and be close to one side each other and all seted up the mounting groove, No. one filter screen and No. two filter screen tops and the equal fixedly connected with installation piece in bottom, every the installation piece all with correspond mounting groove sliding connection, can effectually adsorb the filtration to medium and less particulate matter etc. in the flue gas through a filter screen and No. two filter screens, simultaneously, use and correspond the installation rail, can change the dismouting of a filter screen and No. two filter screens by quick effectual realization, the effectual result of use that has improved equipment.

The utility model has the following advantages: the flue gas desulfurization and denitration treatment device is simple to operate and convenient to use, can effectively realize desulfurization and denitration treatment of flue gas, can effectively treat particulate matters and attached water in the flue gas when the flue gas is subjected to desulfurization and denitration treatment, effectively avoids the condition of poor flue gas treatment effect, can effectively clean the treatment partition plate, effectively avoids the condition that the treatment effect is influenced by blockage of the treatment partition plate after the treatment partition plate is used for a long time, can quickly and effectively disassemble and replace the first filter screen and the second filter screen, effectively improves the maintenance speed of the first filter screen and avoids the condition that the replacement time is long and the speed is slow and the use of the device is influenced.

Drawings

FIG. 1 is a schematic cross-sectional view of a flue gas desulfurization and denitrification system of an asphalt mixing plant according to a preferred embodiment of the present invention;

fig. 2 is an enlarged schematic structural diagram of a position a of a flue gas desulfurization and denitrification system of an asphalt mixing plant according to a preferred embodiment of the present invention.

Description of reference numerals: 1. a spray tower; 2. a smoke suction pipe; 3. a transfer tube; 4. a filter box; 5. an activated carbon adsorption tank; 6. a smoke exhaust pipe; 7. a water supply pipeline; 8. a first shunt tube; 9. a first spray head; 10. a second shunt tube; 11. a second spray head; 12. a stop valve; 13. a base plate; 14. a pump body; 15. a first pipe; 16. mounting a rail; 17. a first filter screen; 18. a second filter screen; 19. mounting grooves; 20. mounting blocks; 21. processing the partition board; 22. a circulating flow guide pipe; 23. and (4) controlling the valve.

Detailed Description

The technical scheme of the utility model is clearly and completely described in the following with reference to the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model will be further explained with reference to the drawings.

As shown in FIG. 1-2, a flue gas desulfurization and denitration system for an asphalt mixing plant comprises a spray tower 1, a smoke absorption pipeline 2 is arranged at the bottom of one side of the spray tower 1, the smoke absorption pipeline 2 is fixedly connected and communicated with the spray tower 1, a conveying pipe 3 is arranged at the top of the spray tower 1, the conveying pipe 3 is fixedly connected and communicated with the spray tower 1, a filter box 4 is arranged at one side of the spray tower 1 away from the smoke absorption pipeline 2, one end of the conveying pipe 3 away from the spray tower 1 is fixedly connected and communicated with the filter box 4, one side of the filter box 4 away from the spray tower 1 is communicated with an activated carbon adsorption box 5, a smoke discharge pipe 6 is arranged at one side of the activated carbon adsorption box 5 away from the spray tower 1, a water supply pipeline 7 is arranged above one side of the spray tower 1 close to the smoke absorption pipeline 2, a first shunt pipe 8 is arranged at the bottom of one side of the water supply pipeline 7 close to the spray tower 1, one end of the first shunt pipe 8 away from the water supply pipeline 7 penetrates through the spray tower 1 and is fixedly connected with the spray tower 1, no. 8 bottom fixed connection of shunt tubes and intercommunication have a plurality of shower nozzles 9, spray column 1 is kept away from 2 one side bottoms of smoking pipeline and is provided with circulation honeycomb duct 22, circulation honeycomb duct 22 and spray column 1 fixed connection and intercommunication, and circulation honeycomb duct 22 is kept away from 1 one end of spray column and is had fixed connection and intercommunication with conveying pipe 3, and the cover in the 3 standpipe bottom outsides of conveying pipe is equipped with control valve 23.

Wherein, 1 inner wall middle part top fixedly connected with of spray column handles baffle 21, can effectually spray the moisture and the great particulate matter that carry after the end to the flue gas through handling baffle 21 and carry out effectual separation and handle, effectual improvement is to the treatment effect of flue gas.

Wherein, water supply pipeline 7 is close to spray column 1 one side top and is provided with No. two reposition of redundant personnel pipeline 10, No. two reposition of redundant personnel pipeline 10 and water supply pipeline 7 fixed connection and intercommunication, No. two reposition of redundant personnel pipeline 10 keep away from water supply pipeline 7 one end run through spray column 1 and with spray column 1 fixed connection, No. two reposition of redundant personnel pipeline 10 bottoms are provided with a plurality of No. two shower nozzles 11, every No. two shower nozzles 11 all with No. two reposition of redundant personnel pipeline 10 fixed connection and intercommunication, No. two reposition of redundant personnel pipeline 10 are close to water supply pipeline 7 one end outside cover and are equipped with stop valve 12, stop valve 12 and spray column 1 fixed connection, can effectively shunt No. two shower nozzles 11 to corresponding through No. two reposition of redundant personnel pipeline 10, make each No. two shower nozzles 11 can effectually wash away the washing and wash processing baffle 21, the effectual processing baffle 21 has avoided appearing blocking up the condition that influences the treatment effect in long-term use easily, can effectually carry out effectual circulation speed and flow size to No. two reposition of redundant personnel pipeline 10 through stop valve 12 And (5) controlling.

Wherein, the bottom plate 13 is arranged at the bottom of the inner wall of the spray tower 1, the bottom plate 13 is fixedly connected with the bottom of the inner wall of the spray tower 1, the pump body 14 is arranged at one side of the inner wall of the spray tower 1, which is close to the smoke absorbing pipeline 2, the pump body 14 is provided with a pipe 15 far away from one side of the bottom plate 13, the pipe 15 is fixedly connected and communicated with the pump body 14, one end of the pipe 15, which is far away from the pump body 14, runs through the spray tower 1 and is fixedly connected with the spray tower 1, accumulated water in the bottom of the spray tower 1 can be effectively guided to the pump body 14 through the bottom plate 13, bottom sewage can be effectively conveyed to the recycling treatment box through the pipe 15 through the pump body 14, so that the bottom sewage can be continuously recycled after treatment, and waste of resources is effectively avoided.

Wherein, both sides are provided with filter screen 17 and No. two filter screens 18 respectively in the rose box 4, a filter screen 17 and No. two filter screens 18 tops and the equal sliding connection in bottom have an installation rail 16, every installation rail 16 all with rose box 4 inner wall fixed connection, every two correspond installation rail 16 and are close to one side each other and all seted up mounting groove 19, a filter screen 17 and No. two filter screens 18 tops and the equal fixedly connected with installation piece 20 in bottom, every installation piece 20 all with correspond mounting groove 19 sliding connection, can be effectual adsorb the filtration to medium and less particulate matter etc. in the flue gas through a filter screen 17 and No. two filter screens 18, and simultaneously, through corresponding installation rail 16, can be quick effectual the realization change the dismouting of a filter screen 17 and No. two filter screens 18, the effectual result of use that improves equipment.

Specifically, flue gas is sent into a spray tower 1 through a smoke absorption pipeline 2, liquid medicine in a water sending pipeline 7 is sent into each first spray head 9 through a first shunt pipe 8, reducing agents are effectively atomized and sprayed out through each first spray head 9, then denitration treatment is carried out on the flue gas, moisture and large particles carried after the flue gas is sprayed are effectively separated through a treatment partition plate 21, the treatment effect on the flue gas is effectively improved, the flue gas can be effectively subjected to circulating denitration treatment in the spray tower 1 through a conveying pipe 3 and a circulating guide pipe 22, the denitration treatment effect on the flue gas is effectively improved, after the flue gas denitration treatment is finished, bottom sewage is conveyed into a recovery treatment box through a first pipe 15 through a pump body 14 to be recycled, the waste of resources is effectively avoided, and lime slurry is sent to each second spray head 11 through a second shunt pipe 10, the lime slurry is sprayed out through each second spray nozzle 11 to carry out desulfurization treatment on the flue gas, after the circulation desulfurization of the flue gas is finished, the control valve 23 is opened, the circulation flow guide pipe 22 is closed at the same time, the flue gas after denitration and desulfurization enters the filter box 4, medium and small particles in the flue gas are effectively adsorbed and filtered through the first filter screen 17 and the second filter screen 18 in the filter box 4, then the flue gas is finally treated through the activated carbon adsorption box 5, finally the flue gas up to the standard is treated and discharged through the smoke discharge pipe 6, the treatment effect of the flue gas is effectively improved, after the use of the equipment is finished, each second spray nozzle 11 can effectively wash and clean the treatment partition plate 21 by leading in clean water to the second flow guide pipe 10, the condition that the treatment partition plate 21 is easily blocked in the long-term use process is effectively avoided, and the use effect of the equipment is effectively improved, simultaneously through installation rail 16, can be fast effectual realization to the dismouting change of a filter screen 17 and No. two filter screens 18, the effectual maintenance efficiency that improves equipment can be carried bottom sewage to the recovery processing incasement through a pipe 15 through pump body 14 effectually for it can continue reuse after handling, the effectual extravagant condition of resource of avoiding.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Other parts of the utility model not described in detail are prior art and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. The flue gas desulfurization and denitrification system for the asphalt mixing plant is characterized by comprising a spray tower (1), wherein the bottom of one side of the spray tower (1) is fixedly connected and communicated with a smoke absorbing pipeline (2), the top of the spray tower (1) is fixedly connected and communicated with a conveying pipe (3), one end, away from the spray tower (1), of the conveying pipe (3) is fixedly connected and communicated with a filter box (4), one side, away from the spray tower (1), of the filter box (4) is provided with an activated carbon adsorption box (5), the activated carbon adsorption box (5) is communicated with the filter box (4), one side, away from the filter box (4), of the activated carbon adsorption box (5) is communicated with a smoke exhaust pipe (6), a water feeding pipeline (7) is arranged above one side, close to the smoke absorbing pipeline (2), of the water feeding pipeline (7) is close to one side of the spray tower (1), the bottom of the spray tower (1) is fixedly connected and communicated with a first flow dividing pipe (8), no. one shunt tubes (8) are close to spray column (1) one end and run through spray column (1) and with spray column (1) fixed connection, shunt tubes (8) bottom fixed connection and intercommunication have a plurality of shower nozzle (9), spray column (1) is kept away from fume absorbing pipe way (2) one side bottom fixed connection and intercommunication and is had circulation honeycomb duct (22), spray column (1) one end and conveying pipe (3) fixed connection and intercommunication are kept away from in circulation honeycomb duct (22), conveying pipe (3) standpipe bottom outside cover is equipped with control valve (23), control valve (23) are located circulation honeycomb duct (22) below.

2. The flue gas desulfurization and denitrification system for the asphalt mixing plant according to claim 1, wherein a treatment partition plate (21) is arranged above the middle part of the inner wall of the spray tower (1), and the treatment partition plate (21) is fixedly connected with the inner wall of the spray tower (1).

3. The flue gas desulfurization and denitrification system of the asphalt mixing plant according to claim 1, wherein the top of the water feeding pipeline (7) near the side of the spray tower (1) is fixedly connected and communicated with a second diversion pipeline (10), one end of the second diversion pipeline (10) near the spray tower (1) penetrates through the spray tower (1) and is fixedly connected with the spray tower (1), a plurality of second spray heads (11) are fixedly connected to the bottom of the second diversion pipeline (10), a stop valve (12) is sleeved outside one end of the second diversion pipeline (10) near the water feeding pipeline (7), and the stop valve (12) is fixedly connected with the spray tower (1).

4. The flue gas desulfurization and denitrification system for the asphalt mixing plant according to claim 1, wherein a bottom plate (13) is fixedly connected to the bottom of the inner wall of the spray tower (1), a pump body (14) is arranged on the side, away from the bottom plate (13), of the bottom of the inner wall of the spray tower (1), a first pipe (15) is fixedly connected and communicated with the side, away from the bottom plate (13), of the pump body (14), and one end, away from the pump body (14), of the first pipe (15) penetrates through the spray tower (1).

5. The flue gas desulfurization and denitrification system for the asphalt mixing plant according to claim 1, wherein mounting rails (16) are fixedly connected to both the top and the bottom of the inner wall of the filter box (4), a first filter screen (17) and a second filter screen (18) are detachably connected between every two corresponding mounting rails (16), mounting grooves (19) are formed in one side, close to each other, of each two corresponding mounting rails (16), mounting blocks (20) are fixedly connected to the top and the bottom of each first filter screen (17) and each second filter screen (18), and each mounting block (20) is slidably connected with the corresponding mounting groove (19).