CN210891602U

CN210891602U - Rice husk burning steam boiler system

Info

Publication number: CN210891602U
Application number: CN201921802873.9U
Authority: CN
Inventors: 李宝忠
Original assignee: Qingdao Shengli Boiler Co ltd
Current assignee: Qingdao Shengli Boiler Co ltd
Priority date: 2019-10-24
Filing date: 2019-10-24
Publication date: 2020-06-30
Anticipated expiration: 2029-10-24

Abstract

The utility model discloses a rice hull combustion steam boiler system, which comprises a rice hull combustor, wherein the rice hull combustor is connected with a boiler, the boiler is connected with a bag-type dust collector, and the bag-type dust collector is connected with a chimney; the rice husk combustor includes the combustion chamber, sets up rotatable stove dish in the combustion chamber, and the air inlet department of combustion chamber sets up the hood, the hood includes vertical wind channel, vertical wind channel top both sides and horizontal wind channel intercommunication, and horizontal wind channel tip is sealed, and horizontal wind channel diapire sets up the exhaust vent, the exhaust vent slope sets up. This air inlet hood of rice husk combustor in boiler system sets up horizontal wind channel to set up the exhaust vent of slope at horizontal wind channel diapire, can avoid the deposition around the exhaust vent, guarantee that the air inlet is unobstructed.

Description

Rice husk burning steam boiler system

Technical Field

The utility model belongs to the technical field of rice husk burning boiler equipment, concretely relates to rice husk burning steam boiler system.

Background

The social demand on energy is increasingly improved, meanwhile, the environmental awareness is also improved, clean energy is reasonably utilized, and the transformation and upgrading of energy are imminent. Coal-fired boilers are gradually eliminated, gas-fired boilers develop rapidly, but supporting facilities in many areas are not complete, normal operation of the gas-fired boilers cannot be met, and a lot of troubles are brought to production life.

The biomass is used as another novel energy source, has the characteristic of being renewable and has the potential of large-scale development. The rice hull is one of biomass energy sources and has the characteristics of wide distribution and rich reserves. The rice hulls are hard, the combustion temperature is generally 300-400 ℃, the volatile component content is high, the ash content is about 20%, the ash component mainly comprises silicon dioxide, and coking is easy to occur, and the hood of the existing combustor is used for horizontally blowing air, as shown in figure 2, so that the ash content blocks the air inlet of the hood, and therefore, the horizontal chain grate boiler has many defects in the aspect of rice hull combustion.

SUMMERY OF THE UTILITY MODEL

The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art, and to provide a novel rice hull combustion steam boiler system; this air inlet hood of rice husk combustor in boiler system sets up horizontal wind channel to set up the exhaust vent of slope at horizontal wind channel diapire, can avoid the deposition around the exhaust vent, guarantee that the air inlet is unobstructed.

The purpose of the present disclosure is to provide a rice husk burning steam boiler system, in order to achieve the above purpose, the present disclosure adopts the following technical scheme:

a rice hull combustion steam boiler system comprises a rice hull combustor, wherein the rice hull combustor is connected with a boiler, the boiler is connected with a bag-type dust collector, and the bag-type dust collector is connected with a chimney;

the rice husk combustor includes the combustion chamber, sets up rotatable stove dish in the combustion chamber, and the air inlet department of combustion chamber sets up the hood, the hood includes vertical wind channel, vertical wind channel top both sides and horizontal wind channel intercommunication, and horizontal wind channel tip is sealed, and horizontal wind channel diapire sets up the exhaust vent, the exhaust vent slope sets up.

As a further technical scheme, the longitudinal section of the blast cap is T-shaped.

As a further technical scheme, an included angle between the axis of the air outlet and the axis of the vertical channel is an acute angle, and the distance between the air outlet and the axis of the vertical channel is gradually increased from the inner side to the outer side of the transverse channel.

As a further technical scheme, the transverse air ducts on the two sides of the vertical air duct are communicated.

As a further technical scheme, an energy saver is arranged between the boiler and the bag-type dust remover.

As a further technical scheme, an induced draft fan is arranged between the bag-type dust collector and the chimney.

The beneficial effect of this disclosure does:

the utility model discloses a boiler system, the air inlet hood of rice husk combustor sets up vertical wind channel and horizontal wind channel to set up the exhaust vent of slope at horizontal wind channel diapire, wind gets into horizontal wind channel by vertical wind channel after, gets into the combustion chamber via the exhaust vent of slope again, forms from top to bottom the air inlet by the air inlet mode of hood to combustion chamber, can avoid the deposition around the exhaust vent, guarantees that the air inlet is unobstructed.

The boiler system disclosed by the invention is provided with all parts of equipment for matching, and has the advantages of reasonable structure, complete combustion and reliable operation.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is a schematic diagram of an overall boiler system configuration as disclosed in one embodiment;

FIG. 2 is a schematic view of a prior art hood;

FIG. 3 is a schematic view of the hood structure of the rice hull burner of the present disclosure;

in the figure, 1, a rice hull burner; 2. a boiler; 3. an energy saver; 4. a bag-type dust collector; 5. an induced draft fan; 6. a chimney; 7. a vertical air duct; 8. a transverse air duct; 9. and (4) an air outlet.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an", and/or "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof;

for convenience of description, the words "up", "down", "left" and "right" in this disclosure, if any, merely indicate correspondence with up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.

As introduced by the background technology, the inventor finds that ash components generated by rice hull combustion mainly comprise silicon dioxide and are easy to coke, and the blast cap of the existing burner is used for horizontally supplying air, so that the ash content blocks the air inlet of the blast cap.

The application provides a rice hull combustion steam boiler system which comprises a rice hull combustor, wherein the rice hull combustor is connected with a boiler, the boiler is connected with a bag-type dust collector, and the bag-type dust collector is connected with a chimney;

Example 1

The boiler system disclosed in the present embodiment will be further described with reference to fig. 1 and 3;

referring to the attached figure 1, the rice hull combustion steam boiler system comprises a rice hull combustor 1, wherein the rice hull combustor 1 is connected with a boiler 2, the boiler 2 is connected with an energy saver 3, the energy saver 3 is connected with a bag-type dust remover 4, and the bag-type dust remover 4 is connected with a chimney 6 through an induced draft fan 5;

in the disclosure, the combustion mode of the rice hull combustor is similar to that of a gas combustor, and the rice hull combustor can be exchanged with the gas combustor, so that a fuel selection scheme is provided for a user; the boiler can adopt a WNS boiler structure form, and a dust cleaning device is additionally arranged at the lower part of a flashback chamber of the boiler. The energy saver adopts the existing boiler energy saver, and is not described in detail herein.

The rice husk combustor includes the combustion chamber, sets up rotatable stove dish in the combustion chamber, and the air inlet department of combustion chamber sets up the hood, and the slag system is disposed to the combustion chamber bottom, and stove dish, slag system etc. adopt prior art, no longer describe herein. As shown in fig. 3, the hood includes a vertical air duct 7, two sides of the top of the vertical air duct 7 are communicated with a horizontal air duct 8, the horizontal end of the horizontal air duct 8 is closed, the bottom wall of the horizontal air duct 8 is connected with the side wall of the vertical air duct 7, an air outlet 9 is arranged on the bottom wall of the horizontal air duct 8, and the air outlet 9 is inclined.

The transverse air ducts 8 on the two sides of the vertical air duct 7 are communicated, the longitudinal section of the whole air cap is T-shaped, and the vertical air duct 7 and the transverse air ducts 8 on the two sides of the air cap are integrally formed.

The included angle between the axis of the air outlet 9 and the axis of the vertical channel 7 is an acute angle, and the distance between the air outlet 9 and the axis of the vertical channel 7 is gradually increased from the inner side to the outer side of the transverse channel 8. From this, the wind that sends into the rice husk combustor is by lower supreme circulation to horizontal wind channel through the vertical passageway of hood, then sends into the combustion chamber by the air outlet slope of horizontal wind channel, is the top-down air inlet when getting into the combustion chamber by the horizontal wind channel of hood to can avoid around the exhaust vent export deposition, can not block up the exhaust vent, guarantee that the air inlet is unobstructed.

When the boiler system is used, the rice hull pressing block enters the rice hull combustor 1 through the feeding system, falls onto the furnace plate, is uniformly distributed on the furnace plate along with the rotation of the furnace plate, and is uniformly combusted on the furnace plate; the ash slag generated by burning the rice husk is mainly silicon dioxide, and most of the ash slag is discharged through a slag discharging system of the burner, so that the abrasion to the pipe wall of the boiler is greatly reduced, and the service life of the boiler is prolonged. The generated high-temperature flue gas and flame enter a main machine of the boiler 2, the flue gas sequentially passes through a radiation zone and a convection zone and enters an economizer 3 from a flue gas outlet of the boiler for heat exchange, and the low-temperature flue gas passes through a bag-type dust collector 4 and an induced draft fan 5 and enters a chimney 6 for evacuation. Tap water enters a softening water tank after water treatment, enters a boiler through an energy saver by a water pump to generate saturated steam, and the saturated steam enters a steam-distributing cylinder from a main steam pipe at the top of a boiler barrel and then is connected to a steam-consuming point.

The boiler system disclosed by the invention is reasonable in structure, convenient and fast to install and debug and has a large market space.

Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A rice hull combustion steam boiler system is characterized by comprising a rice hull combustor, wherein the rice hull combustor is connected with a boiler, the boiler is connected with a bag-type dust collector, and the bag-type dust collector is connected with a chimney;

2. A rice hull combustion steam boiler system according to claim 1, wherein said hood is T-shaped in longitudinal cross-section.

3. The rice hull combustion steam boiler system as claimed in claim 1, wherein the axis of said air outlet is at an acute angle to the axis of the vertical passageway, and the distance between the air outlet and the axis of the vertical passageway increases from the inside to the outside of the transverse passageway.

4. The rice hull combustion steam boiler system as claimed in claim 1, wherein said vertical air path is connected to lateral air paths on opposite sides of said vertical air path.

5. A rice hull burning steam boiler system as claimed in claim 1, wherein an economizer is provided between said boiler and said bag-type dust collector.

6. A rice hull combustion steam boiler system as claimed in claim 1, wherein an induced draft fan is provided between said bag-type dust collector and the chimney.