CN217978779U - Efficient circulating fluidized bed flue gas circulation system smoke separator - Google Patents

Abstract

Efficient circulating fluidized bed flue gas circulating system gas separator, including the installation stand of fixed mounting in the shaft outside, the top welding on installation stand surface has mount table one, and the top fixed mounting of mount table one has cyclone body, and cyclone body includes the cylinder jar, and the bottom integrated into one piece intercommunication of cylinder jar has the cone jar, the utility model discloses add this smoke and dust piece-rate system in boiler flue gas system, open for the fan at work, produce suction and pass through the intake stack with boiler exhaust's flue gas through the intake stack and inhale the cylinder jar for the fan, dusty gas rotates at the inner wall of cylinder jar with spiral state, and granule object and air separation, granule object whereabouts, clean gas rises and discharges through the exhaust pipe, so can separate more dust particles in the emission flue gas, make the emission flue gas cleaner, reduce the wearing and tearing of economizer and air preheater, reduce sack dust removal pressure, reduce exhaust gas temperature.

Description

Efficient smoke separator of smoke circulating system of circulating fluidized bed

Technical Field

The utility model relates to a circulating fluidized bed flue gas circulation system technical field, especially efficient circulating fluidized bed flue gas circulation system gas-gas separator.

Background

The circulating fluidized bed boiler technology is an efficient low-pollution clean combustion technology which is rapidly developed in recent decades, and the circulating fluidized bed boiler has the advantages of wide fuel adaptability, high combustion efficiency, low nitrogen oxide emission, large and quick desulfurization load regulation proportion in the boiler and the like.

Traditional boiler flue gas system is by furnace, height over heater, height economizer and air preheater, dust pelletizing system and chimney are constituteed, at the in-process of discharging the flue gas, the gas emission volume is big, the dust content in the flue gas is high, economizer and air preheater are in the work of separation dust, a large amount of dust particles enter into economizer and air preheater, and then cause when separating the dust particle, the high-frequency and economizer and the inside contact of air preheater of a large amount of dust particles, thereby cause serious wearing and tearing to the inside of economizer and air preheater, and the gas emission pressure is big, and sack dust collection efficiency is low, consequently, make the emission temperature of flue gas high.

To the above problem, the present invention provides an improvement.

Disclosure of Invention

The utility model provides an efficient circulating fluidized bed flue gas circulation system gas-liquid separator has solved the above-mentioned problem that exists among the prior art in the use.

The technical scheme of the utility model is realized like this: efficient circulating fluidized bed flue gas circulating system gas-liquid separator, including the erection column of fixed mounting in the shaft outside, the top welding on erection column surface has mount table one, the top fixed mounting of mount table one has cyclone body, cyclone body includes the cylinder jar, the bottom integrated into one piece intercommunication of cylinder jar has the cone jar, the bottom intercommunication of cone jar has the dust exhaust pipe, the top fixed mounting of cylinder jar has for the fan, the air inlet end intercommunication of giving the fan has the air-supply line, the welding is on mount table one, the air-supply line is kept away from the one end intercommunication of giving the fan on the shaft, the air-out end intercommunication of giving the fan has the non return pipeline, the non return pipeline intercommunication is on the cylinder jar, the inside of cylinder jar is stretched into to the bottom of non return pipeline, the top intercommunication of cylinder jar has the exhaust duct, the middle department welding on installation column surface has mount table two, the skin weld of installation column has mount table three that is located mount table two below, the equal fixed mounting in top of mount table two and mount table three has U type screw conveyer.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: and two conveying tanks are arranged below the mounting platform III, the bottom of each conveying tank is communicated with an ash discharge pipe, and the two conveying tanks are fixedly mounted on the ground through steel structure supports.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: u type screw conveyer includes U type tank tower and motor mounting bracket, and two U type tank towers and two motor mounting brackets are installed respectively on mount table two and mount table three, the cooler bin has been cup jointed on the surface of U type tank tower, the one end integrated into one piece intercommunication at U type tank tower top has the feeder hopper, the one end integrated into one piece intercommunication of U type tank tower bottom has out the hopper.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: one side fixed mounting of motor mounting bracket has step motor, step motor's output shaft runs through to the inside of motor mounting bracket, and two step motor install respectively on mount table two and mount table three.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: the utility model discloses a motor, including U type cell rack, step motor, equal fixed mounting has the gear on the output shaft of one end of U type cell rack and step motor, the inside of U type cell rack rotates installs hollow rotating shaft, the one end of hollow rotating shaft runs through to the outside of U type cell rack, equal fixed mounting has the gear on the one end of U type cell rack and step motor's the output shaft, and two gears pass through chain drive and connect.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: the skin weld of hollow rotating shaft has spiral pay-off leaf, the one end intercommunication that installs the gear in the hollow rotating shaft has the inlet tube, the one end intercommunication that hollow rotating shaft was kept away from to the inlet tube is on the cooler bin, the one end intercommunication that hollow rotating shaft kept away from the gear has the outlet pipe, the one end intercommunication that hollow rotating shaft was kept away from to the outlet pipe is on the cooler bin.

The utility model discloses as above be used for efficient circulating fluidized bed flue gas circulation system gas separator, further: the water inlet pipe and the water outlet pipe are hoses made of L materials, and the water inlet pipe and the water outlet pipe are three-way pipes.

To sum up, the beneficial effects of the utility model reside in that:

1. the utility model discloses add this smoke and dust piece-rate system in boiler flue gas system, open for the fan at work, produce suction and pass through the intake stack with boiler exhaust's flue gas through the intake stack and inhale in the cylinder jar for the fan, dirty gas rotates at the inner wall of cylinder jar with spiral state, particle object and air separation, particle object whereabouts, clean gas rises and discharges through exhaust pipe, so can separate more dust particles in the emission flue gas, it is cleaner to make the emission flue gas, reduce the wearing and tearing of economizer and air preheater, reduce sack dust removal pressure, reduce the exhaust gas temperature, realize the purpose of high-efficient dust removal.

2. The utility model discloses a setting of hollow pivot and cooler bin forms sealed intermediate layer cavity between cooler bin and the U type tank tower, and the inside of hollow pivot is hollow, consequently can be to the inside of hollow pivot and inject the cooling water in the intermediate layer cavity to this cools off the material of U type screw conveyer inside transport, realizes U type screw conveyer's water cooling function.

3. The utility model discloses a cooperation of inlet tube and outlet pipe is used, and the cooling water pours into from the inlet tube, then through hollow rotating shaft and intermediate layer cavity, is collected from the outlet pipe discharge again to supply reuse, so form the hydrologic cycle, avoid the water waste, reach the purpose of water economy resource.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a right side perspective view of the present invention;

FIG. 3 is a schematic view of the overall structure of a U-shaped screw conveyor;

FIG. 4 is a top perspective view of a partial structure of a U-shaped screw conveyor;

FIG. 5 is a bottom perspective view of a U-shaped screw conveyor;

FIG. 6 is a bottom perspective view of the cooling box;

fig. 7 is a perspective view of the overall structure of the smoke separator.

In the figure: 1. the device comprises an installation upright column, 2, a first installation platform, 3, a second installation platform, 4, a third installation platform, 5, a cyclone separator body, 51, a cylindrical tank, 52, a conical tank, 53, a dust exhaust pipe, 54, a fan, 55, an air inlet pipeline, 56, an air exhaust pipeline, 57, a check pipeline, 6, a U-shaped screw conveyor, 61, a U-shaped groove frame, 62, a cooling box, 63, a feed hopper, 64 and a discharge hopper, 65, a motor installation frame, 66, a stepping motor, 67, a hollow rotating shaft, 68, a spiral feeding blade, 69, a gear, 610, a chain, 611, a water inlet pipe, 612, a water outlet pipe, 7, a conveying tank, 8 and an ash exhaust pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to fig. 1 to 7 of 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 efforts belong to the protection scope of the present invention.

Examples

Efficient circulating fluidized bed flue gas circulating system smoke separator, including the installation stand 1 of fixed mounting on the shaft, the top welding on installation stand 1 surface has mount table one 2, the top fixed mounting of mount table one 2 has cyclone body 5, cyclone body 5 includes cylinder jar 51, the bottom integrated into one piece intercommunication of cylinder jar 51 has cone jar 52, cone jar 52's bottom intercommunication has dust exhaust pipe 53, cylinder jar 51's top fixed mounting has for fan 54, the air inlet end intercommunication of giving fan 54 has intake stack 55, intake stack 55 welds on mount table one 2, intake stack 55 keeps away from the one end intercommunication for fan 54 on the shaft, the air outlet end intercommunication of giving fan 54 has non return pipeline 57, non return pipeline 57 intercommunication is on cylinder jar 51, non return pipeline 57's bottom stretches into cylinder jar 51's inside, cylinder jar 51's top intercommunication has exhaust pipe 56, the welding of the centre department on installation stand 1 surface has two 3 of mount table, the surface welding of installation stand 1 is located two 3 below the mount table 4, the equal type conveyer of three of mount table 6 with the top.

The specific using process is as follows: the flue gas that boiler work produced can be carried in the shaft chimney, then discharges away by the shaft chimney again, and the flue gas carries out the flue gas by economizer and air preheater during this period and filters to filter the dust particle in the flue gas, this is the primary filter, and after adding this separator and through the secondary filter, can promote the filtration efficiency of flue gas greatly, and the course of operation of cyclone body 5 is like: the cyclone separator body 5 utilizes the centrifugal force generated by the gas-solid mixture rotating at high speed to separate dust from the gas flow, the centrifugal force borne by particles is far greater than the gravity and the inertia force, so the separation efficiency is high, when the dust-containing gas flow enters the cyclone separator from the gas inlet pipe at the speed of 12-30 m/s, the gas flow changes from linear motion into circular motion, most of the rotating gas flow flows downwards from the cylinder body 51 to the cone body along the wall (namely the inner wall of the cylinder tank 51, hereinafter referred to as the wall), namely the cone tank 52, and in addition, the particles are thrown to the wall under the action of the centrifugal force, and once the dust particles contact with the wall, the inertia force is lost, the momentum of the downward axial velocity near the wall of the device falls along the wall surface, enters the ash discharging pipe, falls into the collecting bag through the powder outlet, and the outer rotational airflow which rotates and descends continuously flows into the central part of the separator in the descending process to form radial airflow which is centripetal, the airflow forms inner rotational flow which rotates upwards, the rotating directions of the inner rotational flow and the outer rotational flow are the same, finally, the purified gas is discharged out of the cylindrical tank 51 through the exhaust pipeline 56, and the discharged flue gas is filtered again, so that the purity of the flue gas discharge can be improved, the discharge temperature of the flue gas can be reduced, the aim of protecting the environment can be achieved, the working pressure of the coal economizer and the air preheater can be shared and reduced, more dust particles in the discharged flue gas can be separated, the discharged flue gas is cleaner, the abrasion of the coal economizer and the air preheater can be reduced, the dust removal pressure of a cloth bag can be reduced, and the exhaust temperature can be reduced, the aim of high-efficiency dust removal is achieved;

in addition, except for the structures for solving the problems in the technical scheme, the structures in the above description are all the existing structures, and the technical schemes such as the working principle, the installation mode, the connection mode and the like are all the existing technologies, such as the coal economizer, the air preheater and the like;

after separated dust falls into the U-shaped screw conveyors 6 through the dust exhaust pipe 53 and the feed hopper 63, the separated dust is cooled by being conveyed by the two U-shaped screw conveyors 6 and then conveyed into the two conveying tanks 7, wherein the tops of the two conveying tanks 7 are communicated with the lowest discharge hopper 64, and the mounting directions of the two U-shaped screw conveyors 6 are opposite, so that the discharge hoppers 64 and the feed hoppers 63 on the two U-shaped screw conveyors 6 are communicated with each other, wherein the uppermost feed hopper 63 is communicated with the dust exhaust pipe 53, and finally conveyed to the next working procedure through the dust exhaust pipe 8, and the dust exhaust pipe 8 is connected with equipment in the next working procedure, which is the prior art, and is not introduced too much herein, and the conveying working process of the U-shaped screw conveyors 6 is as follows: the stepping motor 66 is started, the stepping motor 66 drives one gear 69 to rotate, then the chain 610 drives the other gear 69 to rotate, so that the hollow rotating shaft 67 can be driven to rotate, the spiral feeding blade 68 welded on the hollow rotating shaft 67 can also rotate, when the spiral feeding blade 68 rotates spirally, due to the gravity of dust particles and the wall of the groove body, namely the inner wall of the U-shaped groove frame 61, friction force is generated, the dust particles can move forwards along the groove bottom of the U-shaped groove frame 61 only under the pushing of the spiral feeding blade 68, the transportation of the dust particles on the hollow rotating shaft 67 depends on the pushing of the dust particles advancing backwards, a circulating water flowing cavity is designed inside the U-shaped groove frame 61 and the hollow rotating shaft 67, wherein the connection modes of the water inlet pipe 611 and the water outlet pipe 612 are connected in a rotating mode, namely, a circulating water cooling device is designed on the U-shaped spiral conveyor 6, and rotary joints are arranged at two ends of the hollow rotating shaft 67, so that the dust particles are cooled in the conveying process.

Two conveying tanks 7 are arranged below the mounting platform III 4, the bottom of each conveying tank 7 is communicated with an ash discharge pipe 8, and the two conveying tanks 7 are fixedly mounted on the ground through steel structure supports.

Specifically, carry jar 7 to use steel structure support to support subaerial, carry jar 7 also for the storehouse pump, carry jar 7 should be the ejection of compact down, carry and set up this prior art of high material level alarm switch of radio frequency admittance on jar 7, this is not introduced too much here, and mainly used is a large amount of dust particles, quick one process of carrying next, and its is totally enclosed, and the pollution-free transport can satisfy the environmental protection requirement.

U type screw conveyer 6 includes U type truss 61 and motor mounting bracket 65, and two U type trusss 61 and two motor mounting brackets 65 are installed respectively on mount table two 3 and mount table three 4, cooler bin 62 has been cup jointed on the surface of U type truss 61, the one end integrated into one piece intercommunication at U type truss 61 top has feeder hopper 63, the one end integrated into one piece intercommunication of U type truss 61 bottom has out hopper 64, one side fixed mounting of motor mounting bracket 65 has step motor 66, step motor 66's output shaft runs through to motor mounting bracket 65's inside, and two step motor 66 are installed respectively on mount table two 3 and mount table three 4, hollow rotating shaft 67 is installed in U type truss 61's internal rotation, the one end of hollow rotating shaft 67 runs through to U type truss 61's the outside, equal fixed mounting has gear 69 on U type truss 61's one end and step motor 66's the output shaft, and two gear 69 pass through chain 610 transmission connection.

Specifically, start step motor 66, step motor 66 drives one of them gear 69 and rotates, then drives another gear 69 through chain 610 and rotates, so just can drive hollow rotating shaft 67 and rotate, and the spiral pay-off leaf 68 of welding on hollow rotating shaft 67 also can follow the rotation, just can drive the motion of dust granule when spiral pay-off leaf 68 spiral rotation and carry, realizes the collection and the transport to the dust granule.

The surface of the hollow rotating shaft 67 is welded with a spiral feeding blade 68, one end of the hollow rotating shaft 67, which is provided with a gear 69, is communicated with a water inlet pipe 611, one end of the water inlet pipe 611, which is far away from the hollow rotating shaft 67, is communicated with the cooling box 62, one end of the hollow rotating shaft 67, which is far away from the gear 69, is communicated with a water outlet pipe 612, one end of the water outlet pipe 612, which is far away from the hollow rotating shaft 67, is communicated with the cooling box 62, the water inlet pipe 611 and the water outlet pipe 612 are hoses made of 316L materials, and the water inlet pipe 611 and the water outlet pipe 612 are both three-way pipes.

Specifically, the cooling water is injected from the water inlet pipe 611, then passes through the hollow rotating shaft 67 and the interlayer cavity, and is discharged from the water outlet pipe 612 and collected for reuse, so that water circulation is formed, waste of water resources is avoided, and the purpose of saving water resources is achieved.

It should be noted that, because the whole device is too high, the ladder stand is installed at a suitable position of the device according to actual needs, so that a user can conveniently maintain the device.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (7)

1. Efficient circulating fluidized bed flue gas circulation system gas separator, including installation stand (1) of fixed mounting in the shaft outside, its characterized in that: the top of the surface of the mounting upright post (1) is welded with a first mounting table (2), the top of the mounting table I (2) is fixedly provided with a cyclone separator body (5), the cyclone separator body (5) comprises a cylindrical tank (51), the bottom of the cylindrical tank (51) is integrally formed and communicated with a conical tank (52), the bottom of the conical tank (52) is communicated with a dust exhaust pipe (53), the top of the cylindrical tank (51) is fixedly provided with a fan (54), the air inlet end of the air supply fan (54) is communicated with an air inlet pipeline (55), the air inlet pipeline (55) is welded on the first mounting table (2), one end of the air inlet pipeline (55) far away from the air supply fan (54) is communicated with the vertical shaft, the air outlet end of the air supply fan (54) is communicated with a check pipeline (57), the check pipeline (57) is communicated with the cylindrical tank (51), the bottom end of the check pipeline (57) extends into the cylindrical tank (51), the top of the cylindrical tank (51) is communicated with an exhaust duct (56), a second mounting table (3) is welded in the middle of the surface of the mounting upright post (1), a third mounting table (4) positioned below the second mounting table (3) is welded on the surface of the mounting upright post (1), and U-shaped screw conveyors (6) are fixedly mounted at the tops of the second mounting platform (3) and the third mounting platform (4).

2. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 1, wherein: two conveying tanks (7) are arranged below the mounting platform III (4), the bottom of each conveying tank (7) is communicated with an ash discharge pipe (8), and the two conveying tanks (7) are fixedly mounted on the ground through steel structure supports.

3. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 2, wherein: u type screw conveyer (6) are installed respectively on mount table two (3) and mount table three (4) including U type truss (61) and motor mounting bracket (65), two U type trusses (61) and two motor mounting bracket (65), cooler bin (62) have been cup jointed on the surface of U type truss (61), the one end integrated into one piece intercommunication at U type truss (61) top has feeder hopper (63), the one end integrated into one piece intercommunication of U type truss (61) bottom has out hopper (64).

4. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 3, wherein: one side fixed mounting of motor mounting bracket (65) has step motor (66), the output shaft of step motor (66) runs through to the inside of motor mounting bracket (65), and two step motor (66) are installed respectively on mount table two (3) and mount table three (4).

5. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 4, wherein: hollow rotating shaft (67) is installed in the inside rotation of U type tank frame (61), the outside to U type tank frame (61) is run through to the one end of hollow rotating shaft (67), equal fixed mounting has gear (69) on the one end of U type tank frame (61) and the output shaft of step motor (66), and two gear (69) are connected through chain (610) transmission.

6. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 5, wherein: the skin weld of hollow rotating shaft (67) has spiral pay-off leaf (68), the one end intercommunication that installs gear (69) on hollow rotating shaft (67) has inlet tube (611), the one end intercommunication that hollow rotating shaft (67) were kept away from in inlet tube (611) is on cooler bin (62), the one end intercommunication that gear (69) were kept away from in hollow rotating shaft (67) has outlet pipe (612), the one end intercommunication that hollow rotating shaft (67) were kept away from in outlet pipe (612) is on cooler bin (62).

7. The high efficiency circulating fluidized bed flue gas recirculation system smoke separator of claim 6, wherein: the water inlet pipe (611) and the water outlet pipe (612) are both hoses made of 316L materials, and the water inlet pipe (611) and the water outlet pipe (612) are both three-way pipes.

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