CN219473639U - Cyclone separator for circulating fluidized bed boiler - Google Patents

Abstract

The utility model relates to the technical field of circulating fluidized bed boilers and provides a cyclone separation device of a circulating fluidized bed boiler, which comprises a circulating fluidized bed boiler box body, wherein a combustion reaction chamber is fixedly connected to the inside of the circulating fluidized bed boiler box body, a chemical material feeding port is fixedly connected to the inside of the combustion reaction chamber, a coal feeding port is fixedly connected to the outside of the combustion reaction chamber, a conveying pipe is fixedly connected to the inside of the combustion reaction chamber, a cyclone separation reaction chamber is fixedly connected to the outside of the conveying pipe, a novel filtering structure is fixedly connected to the top of the cyclone separation reaction chamber, and a novel combustion reaction structure is movably connected to the bottom of the cyclone separation reaction chamber, so that deep processing of internal materials of the cyclone separation device of the circulating fluidized bed boiler is more convenient. Through the technical scheme, the problems that few useful materials are not sufficiently reserved in the combustion reaction in the prior art and harmful gas is filtered and discharged are solved.

Description

Cyclone separator for circulating fluidized bed boiler

Technical Field

The utility model relates to the technical field of circulating fluidized bed boilers, in particular to a cyclone separation device of a circulating fluidized bed boiler.

Background

After the fuel is crushed to proper granularity by the crusher, the fuel is fed from the upper part of an air distribution plate of a combustion chamber by a coal feeder, is mixed with hot boiling materials in the combustion chamber, is quickly heated, is quickly ignited and burnt, fills a hearth under the action of higher air flow speed, and has a large amount of solid particles carried out of the combustion chamber, and after being separated by a gas-solid separator, the separated materials are returned to the hearth again by a material returning device to continue to participate in combustion. The high-temperature flue gas guided out by the separator is discharged from the chimney through the dust remover after heat exchange between the tail flue and the convection heating surface.

Spraying limestone powder into the furnace, combining with a high-efficiency separator, capturing finer particles, ensuring the limestone and flue gas to react in a mixed manner for many times, achieving the highest utilization rate of the limestone in the furnace, and ensuring the desulfurization efficiency in the furnace to be more than 90%; and by combining the measures of the desulfurization tower outside the furnace, the original emission of SO2 is ensured to be below 35mg/Nm 3.

Existing machines are not sufficiently active for combustion of their internal materials and have a small number of available materials remaining after cyclone separation, and occasionally have a small number of harmful emissions affecting the health of the staff when the combustion exhaust gases are burned.

Disclosure of Invention

The utility model provides a cyclone separation device of a circulating fluidized bed boiler, which solves the problems that the combustion reaction in the related art is insufficient to retain a few useful materials and filter and discharge harmful gases.

The technical scheme of the utility model is as follows: the utility model provides a cyclone separation device of circulating fluidized bed boiler, includes the circulating fluidized bed boiler box, the inside fixedly connected with combustion reaction chamber of circulating fluidized bed boiler box, the inside fixedly connected with chemical material feed inlet of combustion reaction chamber, the outside fixedly connected with coal feed inlet of combustion reaction chamber, the inside fixedly connected with conveying pipeline of combustion reaction chamber, the outside fixedly connected with cyclone separation reaction chamber of conveying pipeline, the novel filtration of top fixedly connected with of cyclone separation reaction chamber, the novel combustion reaction structure of bottom swing joint of cyclone separation reaction chamber.

Preferably, the outside fixedly connected with inlet pipe of novel combustion reaction structure, the bottom swing joint of inlet pipe has the combustion tube, the bottom swing joint of combustion tube has the air duct, the inside fixedly connected with air duct of air duct.

Preferably, the outside fixedly connected with of novel combustion reaction structure goes out the tuber pipe, the outside fixedly connected with hair-dryer of tuber pipe, the outside swing joint of inlet pipe has the discharging pipe.

Preferably, the inside fixedly connected with rose box of novel filtration, the top fixedly connected with filter shell of rose box, the inside fixedly connected with chemical molecule of filter shell.

Preferably, the top fixedly connected with fan of filtration shell, the outside fixedly connected with temporary storage room of fan, the top fixedly connected with gas outlet of temporary storage room.

Preferably, the cyclone separation structure is fixedly connected to the inside of the cyclone separation reaction chamber, and different chemical materials are arranged in the cyclone separation reaction chamber.

Preferably, the inside fixedly connected with zone of heating of combustion reaction room, the outside fixedly connected with insulating layer of zone of heating, the outside fixedly connected with pot shell of insulating layer.

Preferably, nine air delivery pipes and air delivery holes are arranged in the novel combustion reaction structure.

The working principle and the beneficial effects of the utility model are as follows:

1. according to the utility model, the internal materials of the cyclone separation device of the circulating fluidized bed boiler can be more conveniently deeply processed by the blower and the heating surface.

2. The utility model can filter and discharge harmful gases through the active carbon molecules and the filter screen, thereby protecting the health of staff.

Drawings

The utility model will be described in further detail with reference to the drawings and the detailed description.

FIG. 1 is a perspective view of a cyclone separation device of a circulating fluidized bed boiler according to the present utility model;

FIG. 2 is a side cross-sectional view of a cyclone separator of the circulating fluidized bed boiler of the present utility model;

FIG. 3 is a side cross-sectional view of a combustion reaction structure of the present utility model;

FIG. 4 is a side cross-sectional view of a filter structure of the present utility model;

FIG. 5 is a perspective view of the structure of the heating plate of the present utility model;

in the figure: 1. a circulating fluidized bed boiler box; 2. novel combustion reaction structure; 201. a feed pipe; 202. a discharge pipe; 203. a blower; 204. an air outlet pipe; 205. an air delivery hole; 206. an air delivery pipe; 207. a combustion tube; 3. novel filtering structure; 301. a filter box; 302. a filter housing; 303. a chemical molecule; 304. a fan; 305. a temporary storage chamber; 306. an air outlet; 307. a fixed block; 4. a combustion reaction chamber; 401. a heating layer; 402. a pot shell; 403. a thermal insulation layer; 5. cyclone separation reaction chamber; 501. a cyclone separation structure; 6. a material conveying pipe; 7. a coal feed port; 8. a chemical material feed port;

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

As shown in fig. 1 to 5, the embodiment provides a cyclone separation device of a circulating fluidized bed boiler, which comprises a circulating fluidized bed boiler box body 1, wherein the inside of the circulating fluidized bed boiler box body 1 is fixedly connected with a combustion reaction chamber 4, the inside of the combustion reaction chamber 4 is fixedly connected with a chemical material feeding port 8, the outside of the combustion reaction chamber 4 is fixedly connected with a coal feeding port 7, the inside of the combustion reaction chamber 4 is fixedly connected with a conveying pipe 6, the outside of the conveying pipe 6 is fixedly connected with a cyclone separation reaction chamber 5, the top of the cyclone separation reaction chamber 5 is fixedly connected with a novel filtering structure 3, and the bottom of the cyclone separation reaction chamber 5 is movably connected with a novel combustion reaction structure 2; the cyclone separation device can be used for conveniently deeply processing the internal materials of the cyclone separation device of the circulating fluidized bed boiler through the blower and the heating surface, and filtering and discharging harmful gases through activated carbon molecules and the filter screen, so that the health of workers is protected.

The outside fixedly connected with inlet pipe 201 of novel combustion reaction structure 2, the bottom swing joint of inlet pipe 201 has combustion tube 207, and the bottom swing joint of combustion tube 207 has defeated tuber pipe 206, and the inside fixedly connected with defeated wind hole 205 of defeated tuber pipe 206 evenly is provided with nine combustion tubes 207 in the inside of novel combustion reaction structure 2.

The outside fixedly connected with play tuber pipe 204 of novel combustion reaction structure 2, the outside fixedly connected with hair-dryer 203 of play tuber pipe 204, the outside swing joint of inlet pipe 201 has discharging pipe 202, and the inlet pipe 201 is the same with the size of discharging pipe 202.

Novel inside fixedly connected with rose box 301 of filtration 3, the top fixedly connected with filter shell 302 of rose box 301, the inside fixedly connected with chemistry molecule 303 of filter shell 302, the outside both sides of chemistry molecule 303 evenly are provided with the ventilation hole.

The top fixedly connected with fan 304 of filtration shell 302, the outside fixedly connected with of fan 304 keeps in room 305, the top fixedly connected with gas outlet 306 of keeping in room 305, the top of novel filtration structure 3 is provided with two gas outlets 306, the outside both sides of fan 304 are provided with the room 305 that keeps in.

The cyclone separation structure 501 is fixedly connected to the inside of the cyclone separation reaction chamber 5, different chemical materials are arranged in the cyclone separation reaction chamber, and the materials on the cyclone separation structure 501 can enable heavy materials to fall down and light materials to rise up through cyclone separation.

The inside fixedly connected with zone of heating 401 of combustion reaction 4, the outside fixedly connected with insulating layer 403 of zone of heating 401, the outside fixedly connected with pot shell 402 of insulating layer 403, the external connection mode setting of zone of heating 401, pot shell 402 and insulating layer 403 is closely laminated.

Nine air delivery pipes 206 and air delivery holes 205 are arranged in the novel combustion reaction structure 2, and the effect and the size are the same.

In this embodiment, the material is put into the combustion reaction chamber 4 and is subjected to the first combustion reaction through the heating layer 401, the material is input into the cyclone separation reaction chamber 5 through the material conveying pipe 6 to be subjected to the cyclone separation reaction, the heavy material after the reaction enters the novel combustion reaction structure 2 through the material feeding pipe 201, the heavy material is subjected to the second combustion reaction through the combustion pipe 207 through the air blowing hole 205 and the air conveying pipe 206 through the air blower 203, and the material is output into the combustion reaction chamber 4 through the wind power to be subjected to the secondary combustion reaction, so that the deep reaction of the material is improved.

Example 2

As shown in FIGS. 3 to 4, the present embodiment also proposes, based on the same concept as that of embodiment 1 described above

In this embodiment, after the cyclone separation reaction is performed on the materials in the machine, the light gas is driven to the filter box 301 by the fan 304, and is filtered for the first time by the filter screen arranged in the filter box 301, and the fan 304 again makes the gas enter the chemical molecule 303 through the vent hole arranged outside the filter shell 302 to perform the secondary filtration reaction, and is discharged through the outer air outlet hole into the temporary storage chamber 305 and the air outlet 306, so that the health of the staff is protected.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (8)

1. The utility model provides a cyclone separation device of circulating fluidized bed boiler, its characterized in that, including circulating fluidized bed boiler box (1), the inside fixedly connected with combustion reaction chamber (4) of circulating fluidized bed boiler box (1), the inside fixedly connected with chemical material feed inlet (8) of combustion reaction chamber (4), the outside fixedly connected with coal feed inlet (7) of combustion reaction chamber (4), the inside fixedly connected with conveying pipeline (6) of combustion reaction chamber (4), the outside fixedly connected with cyclone separation reaction chamber (5) of conveying pipeline (6), the top fixedly connected with novel filtration (3) of cyclone separation reaction chamber (5), the bottom swing joint of cyclone separation reaction chamber (5) has novel combustion reaction structure (2).

2. The cyclone separation device of the circulating fluidized bed boiler according to claim 1, wherein a feeding pipe (201) is fixedly connected to the outside of the novel combustion reaction structure (2), a combustion pipe (207) is movably connected to the bottom of the feeding pipe (201), an air delivery pipe (206) is movably connected to the bottom of the combustion pipe (207), and an air delivery hole (205) is fixedly connected to the inside of the air delivery pipe (206).

3. Cyclone separation device of a circulating fluidized bed boiler according to claim 2, characterized in that the outside of the novel combustion reaction structure (2) is fixedly connected with an air outlet pipe (204), the outside of the air outlet pipe (204) is fixedly connected with a blower (203), and the outside of the feed pipe (201) is movably connected with a discharge pipe (202).

4. Cyclone separator of a circulating fluidized bed boiler according to claim 1, characterized in that the inside of the novel filter structure (3) is fixedly connected with a filter box (301), the top of the filter box (301) is fixedly connected with a filter shell (302), and the inside of the filter shell (302) is fixedly connected with chemical molecules (303).

5. The cyclone separation device of a circulating fluidized bed boiler according to claim 4, wherein a fan (304) is fixedly connected to the top of the filter housing (302), a temporary storage chamber (305) is fixedly connected to the outside of the fan (304), and an air outlet (306) is fixedly connected to the top of the temporary storage chamber (305).

6. Cyclone device for a circulating fluidized bed boiler according to claim 1, characterized in that the cyclone reaction chamber (5) is fixedly connected with a cyclone structure (501) inside and is provided with different chemical materials inside.

7. Cyclone separator of a circulating fluidized bed boiler according to claim 1, characterized in that the inside of the combustion reaction chamber (4) is fixedly connected with a heating layer (401), the outside of the heating layer (401) is fixedly connected with a heat insulation layer (403), and the outside of the heat insulation layer (403) is fixedly connected with a boiler shell (402).

8. Cyclone separator of a circulating fluidized bed boiler according to claim 2, characterized in that the inside of the novel combustion reaction structure (2) is provided with nine air delivery pipes (206) and air delivery holes (205).