CN210346369U

CN210346369U - High-temperature energy-saving fluidized bed furnace suitable for vertical mill

Info

Publication number: CN210346369U
Application number: CN201921328523.3U
Authority: CN
Inventors: 谢良
Original assignee: Longyan Quanhong Building Materials Co Ltd
Current assignee: Longyan Quanhong Building Materials Co Ltd
Priority date: 2019-08-16
Filing date: 2019-08-16
Publication date: 2020-04-17
Anticipated expiration: 2029-08-16

Abstract

The utility model discloses a high-temperature energy-saving fluidized bed furnace suitable for vertical mill, including a fluidized bed furnace body and an energy-saving mechanism, the bottom of the fluidized bed furnace body is fixedly provided with a support frame, one side of the lower end of the fluidized bed furnace body is provided with a feed inlet, the fluidized bed furnace body on one side of the feed inlet is provided with a discharge port, the fluidized bed furnace body on the bottom of the discharge port is provided with an air inlet, the top of the fluidized bed furnace body is provided with a furnace gas outlet, a gas distribution plate is fixedly arranged in the fluidized bed furnace body between the air inlet and the discharge port, the air inlet is connected with the output end of a draught fan through an air inlet; the utility model has the advantages of reasonable and simple structure, energy-conserving mechanism preheated air reduces the required energy consumption of fluidized bed furnace, cost, and the air that preheats simultaneously reduces the change of furnace internal temperature, improves fluidized bed furnace processingquality, and heat exchange efficiency is high, and the dust bag improves energy-conserving mechanism's feature of environmental protection ability.

Description

High-temperature energy-saving fluidized bed furnace suitable for vertical mill

Technical Field

The utility model relates to a fluidized bed furnace, in particular to a high-temperature energy-saving fluidized bed furnace suitable for vertical mill belongs to fluidized bed furnace technical field.

Background

The fluidized bed boiler is one of the new combustion technologies developed in recent years, the modern fluidized bed boiler is a thermal equipment utilizing the technology of 'gathering fluidized bed', when fluid flows through a static granular material layer from bottom to top, if the flow rate exceeds a certain limit, the bulk material layer begins to expand and wriggle and has fluidity, and becomes a pseudo fluid state, the process is called fluidization of the bulk material layer, the fluidized granules turn over up and down and are similar to the boiling of the fluid, so the fluidized bed boiler is also called as a fluidized bed, the thermal equipment for treating the material by the method is called as the fluidized bed boiler, but the existing fluidized bed boiler needs external air to enter when in use, the external low-temperature air enters the boiler body to cause large temperature fluctuation inside the boiler body, the low-temperature air enters the boiler body to increase the energy consumption and cost of the fluidized bed boiler, and the heat loss and pollution caused by direct discharge of high-temperature furnace gas generated by the fluidized bed boiler are large, the practicability is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the defects of the prior art and provide a high-temperature energy-saving fluidized bed furnace suitable for a vertical mill.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to an energy-conserving fluidized bed furnace of high temperature suitable for found mill, including boiling furnace body and energy-saving mechanism, the bottom fixed mounting of boiling furnace body has the support frame, the feed inlet has been seted up to one side of boiling furnace body lower extreme, the discharge gate has been seted up on the boiling furnace body of feed inlet one side, the air intlet has been seted up on the boiling furnace body of discharge gate bottom, the burner gas export has been seted up at the top of boiling furnace body, the inside fixed mounting of boiling furnace body between air intlet and the discharge gate has gas distribution board, air intlet passes through the air-supply line and is connected with the output of draught fan, the input of draught fan passes through the air-supply line and is connected with energy-saving mechanism, the burner gas export is passed through the stove trachea and is.

As a preferred technical scheme of the utility model, energy-conserving mechanism includes heat transfer shell and hot exchange pipe, the hot-blast import of being connected with the burner gas union coupling is seted up at the top of heat transfer shell, the hot air exitus of being connected with the dust bag is seted up to the bottom of heat transfer shell, the cold wind import has been seted up to the lower extreme of heat transfer shell one side, the cold wind export of being connected with the air-supply line is seted up to the upper end that the heat transfer shell is close to boiling furnace body one side, install hot exchange pipe between cold wind import and the cold wind export.

As an optimized technical scheme of the utility model, hot exchange pipe adopts U type bellows setting.

As the utility model discloses a preferred technical scheme, fixed mounting has the lagging casing on the outer wall of heat transfer shell, just burner gas pipe between energy-conserving mechanism and the boiling furnace body and the outside of air-supply line all overlap and are equipped with the insulating tube.

As an optimal technical scheme of the utility model, the dust exhaust mouth has been seted up to the one end that energy-conserving mechanism was kept away from to the dust bag, just the bottom of dust bag is tied up through the elastic webbing.

As an optimized technical scheme of the utility model, fixed mounting has dustproof otter board in the cold wind import.

The utility model provides a high-temperature energy-saving fluidized bed furnace suitable for a vertical mill. Compared with the prior art, the method has the following beneficial effects:

1. this energy-conserving fluidized bed furnace of high temperature suitable for found mill, moreover, the steam generator is simple in structure, high durability and convenient use, through the energy-saving mechanism who sets up on one side of the fluidized bed furnace body, the high-temperature gas who discharges in the fluidized bed furnace heats low-temperature air in energy-saving mechanism's heat transfer shell, and be used for the fluidized bed furnace body with the air of heat transfer heating, avoid the heat loss that high-temperature furnace gas direct discharge caused, preheat the air on the one hand simultaneously and compare low-temperature air and can effectively reduce the required energy consumption of fluidized bed furnace, therefore, the cost is reduced, effectively improve the energy-conservation nature of fluidized bed furnace body, on the one hand, the.

2. This energy-conserving fluidized bed furnace of high temperature suitable for found mill through the hot-blast import, the cold wind export of seting up on heat exchange shell, and hot-blast export and the cold wind import of seting up at the heat exchange shell lower extreme for high temperature furnace gas flows from top to bottom in heat exchange shell, and low temperature air flows by lower supreme in the heat exchange tube, effectively improves heat exchange efficiency, and installs the dust bag on hot-blast export, and the dust bag filters the furnace gas, improves energy-saving mechanism's feature of environmental protection.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a sectional view of the structure of the present invention;

fig. 3 is a schematic structural diagram of the energy saving mechanism of the present invention.

In the figure: 1. a fluidized bed furnace body; 2. a support frame; 3. an energy-saving mechanism; 31. a heat exchange housing; 32. a hot air inlet; 33. a hot air outlet; 34. a cold air inlet; 35. a cold air outlet; 36. a heat exchange tube; 4. a feed inlet; 5. a discharge port; 6. an air inlet; 7. a furnace gas outlet; 8. a gas distribution plate; 9. an air inlet pipe; 10. an induced draft fan; 11. a furnace gas pipe; 12. a dust removal filter bag; 13. and (4) a valve.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-3, a high-temperature energy-saving fluidized bed furnace suitable for vertical mill comprises a fluidized bed furnace body 1 and an energy-saving mechanism 3, wherein a support frame 2 is fixedly installed at the bottom of the fluidized bed furnace body 1, a feed inlet 4 is arranged at one side of the lower end of the fluidized bed furnace body 1, a discharge outlet 5 is arranged on the fluidized bed furnace body 1 at one side of the feed inlet 4, an air inlet 6 is arranged on the fluidized bed furnace body 1 at the bottom of the discharge outlet 5, a furnace gas outlet 7 is arranged at the top of the fluidized bed furnace body 1, a gas distribution plate 8 is fixedly installed inside the fluidized bed furnace body 1 between the air inlet 6 and the discharge outlet 5, the air inlet 6 is connected with the output end of an induced draft fan 10 through an air inlet pipe 9, the input end of the induced draft fan 10 is connected with the energy-saving mechanism 3 through the, and a dust removal filter bag 12 is fixedly arranged at the bottom of the energy-saving mechanism 3.

The energy-saving mechanism 3 comprises a heat exchange shell 31 and a heat exchange tube 36, wherein the top of the heat exchange shell 31 is provided with a hot air inlet 32 connected with the furnace gas tube 11, the bottom of the heat exchange shell 31 is provided with a hot air outlet 33 connected with the dust-removing filter bag 12, the lower end of one side of the heat exchange shell 31 is provided with a cold air inlet 34, the upper end of the heat exchange shell 31 close to one side of the boiling furnace body 1 is provided with a cold air outlet 35 connected with the air inlet tube 9, the heat exchange tube 36 is arranged between the cold air inlet 34 and the cold air outlet 35, the heat exchange tube 36 is arranged by adopting a U-shaped corrugated tube, the outer wall of the heat exchange shell 31 is fixedly provided with a heat preservation shell, the furnace gas tube 11 between the energy-saving mechanism 3 and the boiling furnace body 1 and the outer side of the air inlet, and the bottom of the dust removal filter bag 12 is tied up through an elastic belt, so that dust is conveniently discharged, and a dustproof screen plate is fixedly arranged on the cold air inlet 34 to prevent dust from entering the furnace body.

The working principle is as follows: when the utility model is used, materials enter the interior of the boiling furnace body 1 from the feed inlet 4, high-temperature furnace gas generated in the boiling furnace body 1 enters the heat exchange shell 31 from the hot air inlet 32 at the top of the heat exchange shell 31 through the furnace gas outlet 7 and the furnace gas pipe 11, under the action of the draught fan 10, external low-temperature air enters the heat exchange tube 36 in the heat exchange shell 31 from the cold air inlet 34 at the lower end of the heat exchange shell 31, the high-temperature furnace gas in the heat exchange shell 31 preheats the low-temperature air in the heat exchange tube 36 by utilizing the heat exchange principle, the preheated air enters the interior of the boiling furnace body 1 from the cold air outlet 35 at the upper end through the air inlet pipe 9 for use by the boiling furnace, the furnace gas in the heat exchange shell 31 enters the dust removal filter bag 12 from the hot air outlet 33 at the bottom, the furnace gas is discharged after being filtered by the dust removal filter bag 12, the environmental protection performance of, the air heated by heat transfer is used for the boiling furnace body 1, the heat loss caused by direct discharge of high-temperature furnace gas is avoided, on one hand, the energy consumption required by the boiling furnace can be effectively reduced by preheating the air compared with low-temperature air, the cost is reduced, the energy saving performance of the boiling furnace body 1 is effectively improved, on the other hand, the change of the temperature in the furnace can be reduced when the preheated air enters the boiling furnace body 1, the processing quality of the boiling furnace is improved, the hot air inlet 32 and the cold air outlet 35 are arranged at the upper end of the heat exchange shell 31, the hot air outlet 33 and the cold air inlet 34 are arranged at the lower end of the heat exchange shell 31, so that the high-temperature furnace gas flows from top to bottom in the heat exchange shell 31, the low-temperature air flows from bottom to top in the.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a high temperature energy-conserving fluidized bed furnace suitable for found mill which characterized in that: comprises a boiling furnace body (1) and an energy-saving mechanism (3), a support frame (2) is fixedly arranged at the bottom of the boiling furnace body (1), a feed inlet (4) is arranged at one side of the lower end of the boiling furnace body (1), a discharge port (5) is arranged on the boiling furnace body (1) at one side of the feed inlet (4), an air inlet (6) is arranged on the boiling furnace body (1) at the bottom of the discharge port (5), a furnace gas outlet (7) is arranged at the top of the boiling furnace body (1), a gas distribution plate (8) is fixedly arranged inside the boiling furnace body (1) between the air inlet (6) and the discharge port (5), the air inlet (6) is connected with the output end of a draught fan (10) through an air inlet pipe (9), the input end of the draught fan (10) is connected with the energy-saving mechanism (3) through an air inlet pipe (9), the furnace gas outlet (7) is connected, the furnace gas pipe (11) is provided with a valve (13), and the bottom of the energy-saving mechanism (3) is fixedly provided with a dust-removing filter bag (12).

2. The high-temperature energy-saving boiling furnace suitable for the vertical mill as claimed in claim 1, wherein: the energy-saving mechanism (3) comprises a heat exchange shell (31) and heat exchange tubes (36), a hot air inlet (32) connected with a furnace air tube (11) is formed in the top of the heat exchange shell (31), a hot air outlet (33) connected with a dust removal filter bag (12) is formed in the bottom of the heat exchange shell (31), a cold air inlet (34) is formed in the lower end of one side of the heat exchange shell (31), a cold air outlet (35) connected with an air inlet tube (9) is formed in the upper end, close to one side of the boiling furnace body (1), of the heat exchange shell (31), and the heat exchange tubes (36) are installed between the cold air inlet (34) and the cold air outlet (35.

3. A high-temperature energy-saving boiling furnace suitable for a vertical mill according to claim 2, characterized in that: the heat exchange tubes (36) are arranged by adopting U-shaped corrugated tubes.

4. A high-temperature energy-saving boiling furnace suitable for a vertical mill according to claim 2, characterized in that: the heat-preserving device is characterized in that a heat-preserving shell is fixedly mounted on the outer wall of the heat exchange shell (31), and heat-preserving pipes are sleeved on the outer sides of a furnace air pipe (11) and an air inlet pipe (9) between the energy-saving mechanism (3) and the boiling furnace body (1).

5. The high-temperature energy-saving boiling furnace suitable for the vertical mill as claimed in claim 1, wherein: and a dust exhaust port is formed in one end, far away from the energy-saving mechanism (3), of the dust-removing filter bag (12), and the bottom of the dust-removing filter bag (12) is tied up through an elastic belt.

6. A high-temperature energy-saving boiling furnace suitable for a vertical mill according to claim 2, characterized in that: and a dustproof screen is fixedly arranged on the cold air inlet (34).