CN214914877U

CN214914877U - Flue gas dust removal and desulfurization device for thermal power plant

Info

Publication number: CN214914877U
Application number: CN202120866911.8U
Authority: CN
Inventors: 甄长红; 彭庆生; 王锡胜
Original assignee: Huaneng Lanzhou Fanping Thermal Power Co ltd
Current assignee: Huaneng Lanzhou Fanping Thermal Power Co ltd
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-11-30
Anticipated expiration: 2031-04-26

Abstract

The utility model discloses a flue gas dust removal and desulfurization device for thermal power plants, which comprises a cyclone, a cooling box and a desulfurization tower, wherein an outer cover is welded at the outer side of the bottom of the cyclone, an inlet pipe is welded at one side of the cyclone, a guide pipe is welded at the top of the cyclone, the bottom of the cooling box is communicated with the bottom of the desulfurization tower through a fan I, an outlet pipe is welded at the top of one side of the desulfurization tower, a spray head is welded at the top of the desulfurization tower, a discharge pipe is welded at the bottom of the desulfurization tower, the flue gas dust removal and desulfurization device for the thermal power plants can absorb heat in flue gas, reduce the temperature of the collected flue gas, prevent the flue gas from burning collection equipment, compress and form the collected flue gas, prevent the flue gas from being raised by wind when transporting the flue gas, reduce the volume of the flue gas, recover the heat in the flue gas, and prevent waste caused by direct heat dissipation, the energy utilization rate is improved, and the flue gas dust removal and desulfurization device is suitable for flue gas dust removal and desulfurization of a thermal power plant.

Description

Flue gas dust removal and desulfurization device for thermal power plant

Technical Field

The utility model relates to a flue gas dust removal sweetener technical field specifically is a thermal power plant uses flue gas dust removal desulphurization unit.

Background

When a thermal power plant is in power generation operation, due to the combustion of fuel, certain smoke is often generated, some smoke generated by the fuel contains certain sulfur and smoke dust, and further, the smoke dust removal and desulfurization equipment is required to be used for carrying out desulfurization and dust removal operation on the smoke so as to prevent the smoke from polluting the air environment, the existing smoke dust removal and desulfurization equipment basically has the advantages of high desulfurization and dust removal speed, large smoke treatment capacity, low working energy consumption, high purification rate of the smoke, long service life and the like, and can meet the use requirement of dust removal and desulfurization operation on the smoke generated by the thermal power plant, however, for the existing smoke dust removal and desulfurization equipment, on one hand, when the dust removal operation is carried out, because the smoke dust has higher temperature, the collection equipment which easily damages the smoke dust is scalded, or equipment with high heat resistance is adopted for collection, the cost is increased, on the other hand, when the smoke dust is transported, the smoke and dust is blown up by wind once more easily, often adopts the shower water to prevent that it from being blown up by wind, both increases the consumption of water resource, increases its cost of transporting again, on the other hand, often contains more heat in the flue gas, when carrying out the desulfurization operation of removing dust, often can directly lose the heat, is unfavorable for the utilization ratio of increase energy.

Therefore, how to design a flue gas dust removal and desulfurization device for a thermal power plant becomes a problem to be solved currently.

SUMMERY OF THE UTILITY MODEL

The utility model relates to a not enough to prior art exists, the utility model aims at providing a flue gas dust removal and desulfurization device for thermal power plant to solve the problem that proposes in the above-mentioned background art, the utility model relates to a rationally, it is comparatively convenient during the use, be applicable to the flue gas dust removal desulfurization use of thermal power factory.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a flue gas dust removal and desulfurization device for thermal power plant, includes the device body, the device body includes a cyclone, a cooling tank and a desulfurization tower, a cyclone and a desulfurization tower are installed respectively in the both sides of cooling tank, the outside side welding of the bottom of a cyclone has the dustcoat, one side welding of a cyclone has into the pipe, the top welding of a cyclone has the pipe, the bottom of cooling tank communicates with the bottom of desulfurization tower through fan one, the top welding of one side of desulfurization tower has the exit tube, the top welding of desulfurization tower has the shower nozzle, the bottom welding of desulfurization tower has the calandria, the motor is installed through the bolt in the bottom of dustcoat, the bottom welding of one side of dustcoat has the wind gap, fan two is installed through the bolt to the inboard in the wind gap, the bottom welding of a cyclone has the inner tube, the inboard card of inner tube has the spiral board, the welding of the top of the opposite side of dustcoat has the cooling tube, the material heap has been piled up to the inboard of sulphur removal tower, install the filter screen through the bolt on the inner wall of sulphur removal tower, the welding of the bottom of inner tube has row's mouth, the switch is installed through the bolt in the outside of dustcoat.

As a preferred embodiment of the utility model, the switch passes through the electric wire and is connected with fan one, fan two and motor, fan two passes through branch and installs the inboard in the wind gap, the bottom of spiral plate passes inner tube and dustcoat in proper order and installs on the output shaft of motor through the bolt.

As a preferred embodiment of the present invention, one end of the duct is connected to the center of the cyclone, and the other end of the duct is connected to the top of the cooling box.

As a preferred embodiment of the present invention, one end of the cooling pipe is communicated with the outer cover, and the other end of the cooling pipe passes through the bottom of the cooling box and is coiled at the inner side of the cooling box to pass through the top of the cooling box and extend to the outer side of the cooling box.

As a preferred embodiment of the present invention, the inner end of the discharge port is connected to the bottom of the inner tube, and the outer end of the discharge port passes through the outer cover and extends to the outside of the outer cover.

As a preferred embodiment of the present invention, the material pile is provided with a top of the re-filtering net, the discharging pipe is provided with a valve, and the outer cover is sleeved outside the inner pipe.

Has the advantages that: 1. the flue gas dust removal and desulfurization device for the thermal power plant is provided with the cyclone cylinder, the outer cover, the inlet pipe, the guide pipe, the motor, the air port, the second fan, the inner pipe, the spiral plate and the row port, so that heat in smoke can be effectively absorbed, the temperature of the collected smoke is effectively reduced, the collection equipment is prevented from being scalded by the smoke, and the construction cost of the collection equipment is reduced.

2. This flue gas dust removal desulphurization unit for thermal power plant owing to be provided with cyclone, dustcoat, advance pipe, motor, wind gap, fan two, inner tube, spiral plate and row mouth, can be effectively with the smoke and dust compression moulding after collecting, prevents to be raised by wind when transporting the smoke and dust, prevents to cause the secondary pollution of smoke and dust to reduce the volume of smoke and dust, reduce cost of transportation.

3. This flue gas dust removal desulphurization unit for thermal power plant owing to be provided with cyclone, cooler bin, dustcoat, advance pipe, fan one, wind gap, fan two, inner tube and cooling tube, can retrieve the heat that contains in the flue gas effectively, and then prevent the waste that the heat directly scatters and disappears and produce effectively, improve energy utilization.

4. This flue gas dust removal desulphurization unit for thermal power plant reasonable in design, it is comparatively high-efficient convenient during the use, the flue gas dust removal desulfurization that is applicable to the thermal power factory uses.

Drawings

FIG. 1 is a schematic structural view of a flue gas dust removal and desulfurization device for a thermal power plant of the present invention;

FIG. 2 is a sectional view of the flue gas dust removal and desulfurization device for thermal power plants of the present invention;

in the figure: 1. a cyclone; 2. a cooling tank; 3. a sulfur removal tower; 4. a housing; 5. feeding a pipe; 6. a conduit; 7. a first fan; 8. discharging a pipe; 9. a spray head; 10. arranging pipes; 11. a motor; 12. a tuyere; 13. a second fan; 14. an inner tube; 15. a spiral plate; 16. a cooling tube; 17. stacking; 18. filtering with a screen; 19. a switch; 20. and (4) discharging.

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.

Referring to fig. 1 to 2, the present invention provides a technical solution: the flue gas dedusting and desulfurizing device for the thermal power plant comprises a device body, wherein the device body comprises a cyclone cylinder 1, a cooling box 2 and a desulfurizing tower 3, the cyclone cylinder 1 and the desulfurizing tower 3 are respectively arranged at two sides of the cooling box 2, an outer cover 4 is welded at the outer side of the bottom of the cyclone cylinder 1, an inlet pipe 5 is welded at one side of the cyclone cylinder 1, a guide pipe 6 is welded at the top of the cyclone cylinder 1, the bottom of the cooling box 2 is communicated with the bottom of the desulfurizing tower 3 through a fan I7, an outlet pipe 8 is welded at the top of one side of the desulfurizing tower 3, a nozzle 9 is welded at the top of the desulfurizing tower 3, a discharge pipe 10 is welded at the bottom of the desulfurizing tower 3, a motor 11 is arranged at the bottom of the outer cover 4 through a bolt, a wind port 12 is welded at the bottom of one side of the outer cover 4, a fan II 13 is arranged at the inner side of the wind port 12 through a bolt, an inner pipe 14 is welded at the bottom of the cyclone cylinder 1, a spiral plate 15 is clamped at the inner side of the inner pipe 14, the top of the other side of the outer cover 4 is welded with a cooling pipe 16, the inner side of the desulfurizing tower 3 is piled with a material pile 17, a filter screen 18 is arranged on the inner wall of the sulfur removing tower 3 through bolts, a discharge port 20 is welded at the bottom of the inner pipe 14, a switch 19 is arranged on the outer side of the outer cover 4 through bolts, when in desulfurization operation, alkaline solution is sprayed into the desulfurization tower 3 through the spray head 9, the flue gas is sent into the desulfurization tower 3 by the first fan 7 to flow from bottom to top, the alkaline solution is attached to the surface of the material pile after being sprayed onto the material pile 17, thereby slowing down the falling speed of the alkali solution, increasing the reaction time of the alkali solution and the sulfur in the flue gas, improving the utilization rate of the alkali solution, and the material pile 17 is used for increasing the surface area of the alkali solution, improving the absorption speed of the sulfur and ensuring the absorption rate of the sulfur.

As a preferred embodiment of the present invention, the switch 19 is connected to the first fan 7, the second fan 13 and the motor 11 through wires, the second fan 13 is installed inside the air inlet 12 through a support rod, and the bottom end of the spiral plate 15 sequentially passes through the inner tube 14 and the outer cover 4 and is installed on the output shaft of the motor 11 through bolts.

As an optimized embodiment of the present invention, the one end of the duct 6 and the center that passes the cyclone 1 and extends to the cyclone 1 are linked together, the other end of the duct 6 is linked together with the top of the cooling box 2, and the flue gas is let into the cyclone 1 through the inlet pipe 5, and the flue gas flows in the cyclone 1 in a rotating manner, so that the dust in the flue gas is pressed close to the inner wall of the cyclone 1 in a rotating manner under the gravity of the centrifugal force, and falls to the bottom of the cyclone 1 under the action of the gravity, and then the dust in the flue gas is effectively separated.

As a preferred embodiment of the utility model, the one end and the dustcoat 4 of cooling tube 16 are linked together, the other end of cooling tube 16 passes the bottom of cooler bin 2 and coils the outside that extends to cooler bin 2 again at the top that passes cooler bin 2 in cooler bin 2's inboard, the flue gas passes through pipe 6 and gets into the top-down flow behind the cooler bin 2, cold wind flows from bottom to top in cooler bin 2 through

cooling tube

16, 2 carries out the heat exchange in the cooler bin, form hot air, be convenient for so that recycle the thermal recovery of flue gas, the improvement is to thermal utilization ratio.

As a preferred embodiment of the present invention, the inner of row's mouth 20 is linked together with the bottom of inner tube 14, the outer end of row's mouth 20 passes dustcoat 4 and extends to the outside of dustcoat 4, and the dust is continuous under the rotation of spiral plate 15 is promoted downwards by spiral plate 51 and is produced the extrusion to the dust, along with the continuous extrusion of spiral plate 15 to the dust for the dust is by the spiral plate compaction, and extrude through row's mouth 20, and then makes the dust compressed into the column and discharge, prevent to be raised by the wind when transporting the smoke and dust, prevent to cause the secondary pollution of smoke and dust, and reduce the volume of smoke and dust, reduce cost of transportation.

As a preferred embodiment of the utility model, the windrow 17 sets up the top of filter screen 18 again, install the valve on the calandria 10, the outer cover 4 cover is established in the outside of inner tube 14, and motor 11 drives the inboard that inner tube 14 was scraped downwards to the dust of spiral plate 15 in with cyclone 1 for the dust forms the annular thin slice of hugging closely on the inner wall of inner tube 14 by spiral plate 15 spacing down, and two 13 fans let in cold wind through wind gap 12 in to outer cover 4, and cold wind carries out the heat exchange through inner tube 14 and dust, makes the heat that the smoke and dust has absorbed by cold wind, reduces the temperature of the smoke and dust after being collected effectively, prevents that the smoke and dust from scalding collecting device, and reduces collecting device's the construction cost.

The flue gas dedusting and desulfurizing device for the thermal power plant provides electric energy for all electric equipment through an external power supply, when the flue gas dedusting and desulfurizing device is used, a switch 19 is opened, the flue gas is introduced into a cyclone cylinder 1 through an inlet pipe 5, the flue gas rotates and flows in the cyclone cylinder 1, so that dust in the flue gas is close to the inner wall of the cyclone cylinder 1 to rotate and flow under the gravity of centrifugal force, and falls to the bottom of the cyclone cylinder 1 under the action of the gravity, so that the dust in the flue gas is effectively separated, a motor 11 drives a spiral plate 15 to scrape the dust in the cyclone cylinder 1 downwards to the inner side of an inner pipe 14, so that the dust is limited by the spiral plate 15 to form an annular thin sheet tightly attached to the inner wall of the inner pipe 14, a fan II 13 introduces cold air into an outer cover 4 through an air port 12, the cold air exchanges heat with the dust through the inner pipe 14, the heat carried by the smoke is absorbed by the cold air, and the temperature of the collected smoke is effectively reduced, the dust is continuously pushed downwards by the spiral plate 51 and extrudes the dust under the rotation of the spiral plate 15, the dust is compacted by the spiral plate along with the continuous extrusion of the spiral plate 15 on the dust and is extruded out through the discharge port 20, the dust is compressed into a columnar shape to be discharged, the dust is prevented from being lifted by wind during the transportation of the dust, the secondary pollution of the dust is prevented, the volume of the dust is reduced, the transportation cost is reduced, the smoke enters the cooling box 2 through the conduit 6 and flows from top to bottom, cold air flows in the cooling box 2 from bottom to top through the cooling pipe 16, heat exchange is carried out in the cooling box 2 to form hot air, the heat of the smoke is conveniently recovered for reuse, the utilization rate of the heat is improved, an alkali solution is sprayed into the desulfurizing tower 3 through the spray nozzle 9, the smoke is sent into the desulfurizing tower 3 by the fan I7 and flows from bottom to top, the alkaline solution is attached to the surface of the material pile after being sprayed on the material pile 17, so that the falling speed of the material pile is slowed down, the reaction time of the alkaline solution and sulfur in the flue gas is prolonged, the utilization rate of the alkaline solution is improved, the surface area of the alkaline solution is increased by using the material pile 17, the absorption speed of the sulfur is improved, and the absorption rate of the sulfur is guaranteed.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a thermal power plant uses flue gas dust removal desulphurization unit, includes the device body, its characterized in that: the device body comprises a cyclone cylinder (1), a cooling box (2) and a desulfurizing tower (3), wherein the cyclone cylinder (1) and the desulfurizing tower (3) are respectively arranged at two sides of the cooling box (2), an outer cover (4) is welded at the outer side of the bottom of the cyclone cylinder (1), an inlet pipe (5) is welded at one side of the cyclone cylinder (1), a guide pipe (6) is welded at the top of the cyclone cylinder (1), the bottom of the cooling box (2) is communicated with the bottom of the desulfurizing tower (3) through a fan I (7), an outlet pipe (8) is welded at the top of one side of the desulfurizing tower (3), a spray head (9) is welded at the top of the desulfurizing tower (3), a discharge pipe (10) is welded at the bottom of the desulfurizing tower (3), a motor (11) is installed at the bottom of the outer cover (4) through bolts, and a wind port (12) is welded at the bottom of one side of the outer cover (4), fan two (13) are installed through the bolt to the inboard in wind gap (12), the bottom welding of cyclone (1) has inner tube (14), the inboard card of inner tube (14) has spiral plate (15), the top welding of the opposite side of dustcoat (4) has cooling tube (16), it has material heap (17) to pile up except that the inboard of sulphur tower (3), install filter screen (18) through the bolt on except that the inner wall of sulphur tower (3), the bottom welding of inner tube (14) has row mouth (20), switch (19) are installed through the bolt in the outside of dustcoat (4).

2. The flue gas dedusting and desulfurizing device for the thermal power plant according to claim 1, characterized in that: the switch (19) is connected with the first fan (7), the second fan (13) and the motor (11) through electric wires, the second fan (13) is installed on the inner side of the air opening (12) through a support rod, and the bottom end of the spiral plate (15) sequentially penetrates through the inner pipe (14) and the outer cover (4) and is installed on an output shaft of the motor (11) through bolts.

3. The flue gas dedusting and desulfurizing device for the thermal power plant according to claim 1, characterized in that: one end of the conduit (6) penetrates through the cyclone cylinder (1) and extends to the center of the cyclone cylinder (1), and the other end of the conduit (6) is communicated with the top of the cooling box (2).

4. The flue gas dedusting and desulfurizing device for the thermal power plant according to claim 1, characterized in that: one end of the cooling pipe (16) is communicated with the outer cover (4), and the other end of the cooling pipe (16) penetrates through the bottom of the cooling box (2), is coiled on the inner side of the cooling box (2), penetrates through the top of the cooling box (2) and extends to the outer side of the cooling box (2).

5. The flue gas dedusting and desulfurizing device for the thermal power plant according to claim 1, characterized in that: the inner end of the discharge port (20) is communicated with the bottom of the inner pipe (14), and the outer end of the discharge port (20) penetrates through the outer cover (4) and extends to the outer side of the outer cover (4).

6. The flue gas dedusting and desulfurizing device for the thermal power plant according to claim 1, characterized in that: the material pile (17) is provided with the top of the re-filtering screen (18), the calandria (10) is provided with a valve, and the outer cover (4) is sleeved on the outer side of the inner pipe (14).