CN220453641U

CN220453641U - Water-cooled biomass combustion device

Info

Publication number: CN220453641U
Application number: CN202322129336.5U
Authority: CN
Inventors: 池帅; 梁兴才; 姬亮峰; 王朝军
Original assignee: Yangzhou Aozong Industrial Equipment Co ltd
Current assignee: Yangzhou Aozong Industrial Equipment Co ltd
Priority date: 2023-08-09
Filing date: 2023-08-09
Publication date: 2024-02-06
Anticipated expiration: 2033-08-09

Abstract

The application belongs to the technical field of biomass combustion, the utility model discloses a water-cooled biomass combustion device, including inner tube and urceolus, the inner tube inner chamber is the combustion chamber, constitute annular gap between inner tube and the urceolus, the one end of inner tube is provided with the fire gate, one end is connected with flue gas treatment facility, be provided with the water intermediate layer between fire gate and the inner tube tip, water intermediate layer and annular gap intercommunication, the inlet tube is connected to the urceolus downside, the outlet pipe is connected to the upside, the urceolus top sets up the inlet pipe, the discharge end suspension of inlet pipe is in the combustion chamber top, water intermediate layer is close to furnace gate one side and is set up first air inlet chamber, first air inlet chamber passes through the air-supply line and is connected with the air-blower, a plurality of blast pipes have been seted up on the blast pipe, after blast pipe one end passes through the water intermediate layer with first air inlet chamber intercommunication. Air is supplied through the first air inlet cavity, the air supply pipe and the air supply hole, so that biomass particles are more fully combusted; and then the inner cylinder is cooled through the annular gap and the water interlayer, so that the service life can be prolonged.

Description

Water-cooled biomass combustion device

Technical Field

The utility model relates to the technical field of biomass combustion, in particular to a water-cooled biomass combustion device.

Background

The biomass combustion device takes organic matters such as agricultural and forestry waste (straw, branches, bark and pericarp), wood processing leftover materials, building waste plates and the like as fuel, and compared with the traditional fuel such as gasoline, diesel oil, natural gas and the like, biomass particles have the same combustion effect, but have low price, are more environment-friendly and are gradually widely applied. However, most of the existing biomass combustion devices have the problems of insufficient combustion of biomass particles, short service life and the like, so that the input cost is increased, and the existing biomass combustion devices are difficult to popularize and use widely.

Disclosure of Invention

In order to solve the problems, the utility model provides a water-cooled biomass combustion device.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a water-cooled biomass combustion device, includes inner tube and urceolus that transversely arranges, the inner chamber of inner tube is the combustion chamber, constitute annular gap between inner tube and the urceolus, the one end of inner tube is provided with fire door, one end and flue gas treatment facility are connected, fire door department is provided with the furnace gate, be provided with the water intermediate layer between fire door and the inner tube tip, water intermediate layer and annular gap intercommunication, urceolus downside is connected with inlet tube, upside is connected with the outlet pipe, inlet tube, outlet pipe all communicate with annular gap, the urceolus top is provided with the inlet pipe, the discharge end of inlet pipe passes urceolus, annular gap, inner tube back suspension in the combustion chamber top in proper order, water intermediate layer still is provided with first air inlet chamber adjacent furnace gate one side, first air inlet chamber is connected with the air-blower through the air-supply line, annular arrangement has a plurality of blast pipes on the inner tube inner wall, blast pipe length direction is unanimous with inner tube length direction, the pipe wall of blast pipe is last spaced apart to be equipped with a plurality of blast holes, the one end of blast pipe is through behind the water intermediate layer and first air inlet chamber intercommunication.

By adopting the technical scheme, the annular gap and the water interlayer are arranged outside the inner cylinder, so that the inner cylinder wall can be cooled through a water source, and outside air is conveyed into the combustion chamber of the inner cylinder through the arrangement of the first air inlet cavity, the air supply pipe and the air supply hole, on one hand, the air content in the combustion chamber can be increased, and the biomass particles in the combustion chamber are combusted more fully; on the other hand can cool down the inner tube through supplying fresh air and combining external water cooling, so that the service life is prolonged.

Further, the air supply pipe is of a tubular structure formed by an arc-shaped plate and the inner wall of the inner cylinder, and the air supply hole is formed in the arc-shaped plate.

Through adopting above-mentioned technical scheme, set up the blast pipe into the tubular structure that comprises circular arc and inner tube inner wall for one side of blast pipe is the inner tube wall directly, can let the water in the annular clearance cool down the air of blast pipe like this.

Further, a second air inlet cavity is formed in the outer cylinder wall far away from one side of the furnace door, the second air inlet cavity is communicated with the first air inlet cavity through a first air guide pipe, and a plurality of ventilation pipes are arranged between the second air inlet cavity and the inner cylinder cavity.

Through adopting above-mentioned technical scheme, set up second air inlet chamber, first guide duct, ventilation pipe in keeping away from furnace gate one side, can carry out the aeration cooling to the flue gas exit.

Further, the feeding pipe is connected with a feeding device, the feeding device comprises a feeding auger, one end of the feeding auger is connected with a feeding motor through a chain assembly, the other end of the feeding auger is communicated with the side wall of the feeding pipe, and a feeding port is formed in the feeding auger.

Through adopting above-mentioned technical scheme, set up feeding auger, feeding motor, chain assembly, feed inlet, accessible feeding motor drive chain assembly drives feeding auger rotation and sends into the combustion chamber with living beings granule, and is simple and convenient.

Further, the first air inlet cavity is communicated with the feeding pipe through a second air guide pipe.

Through adopting above-mentioned technical scheme, with through the second guide duct intercommunication between first air inlet chamber and the inlet pipe, in leading the inlet pipe with the wind of first air inlet intracavity through the second guide duct, can make the more abundant of living beings granule burning.

Further, the bottom of the inner cylinder is also provided with a slag outlet, a slag outlet pipe is arranged at the slag outlet and extends out of the outer cylinder, and a fire grate is arranged at the slag outlet.

Further, a slag hole, a slag discharging pipe and a fire grate are arranged at the bottom of the inner cylinder, so that later ash discharge is facilitated.

In summary, the utility model has the following beneficial effects: in the application, through setting up annular gap and water intermediate layer outside the inner tube, can cool off the inner tube wall through the water source like this, rethread sets up first air inlet chamber, blast pipe and air-sending hole, carries the combustion chamber of inner tube with external air, can increase the air content in the combustion chamber on the one hand for the living beings granule burning in the combustion chamber is more abundant; on the other hand can cool down the inner tube through supplying fresh air and combining external water cooling, so that the service life is prolonged.

Drawings

FIGS. 1 and 2 are schematic views of the overall structure of the embodiment of the present utility model at different angles;

FIG. 3 is a cross-sectional view of an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of an embodiment of the utility model taken perpendicular to the length of the inner barrel.

In the figure: 10. an inner cylinder; 11. a combustion chamber; 12. a furnace mouth; 13. a furnace door; 14. a water interlayer; 15. a slag outlet; 16. a slag discharging pipe; 17. a fire grate; 20. an outer cylinder; 21. a water inlet pipe; 22. a water outlet pipe; 30. an annular gap; 40. a feed pipe; 50. a first air inlet chamber; 51. an air inlet pipe; 52. a blower; 53. an air supply pipe; 54. a wind supply hole; 55. a second air inlet chamber; 56. a first air guide pipe; 57. a ventilation pipe; 58. a second air guide pipe; 60. a feeding device; 61. a feeding auger; 62. a chain assembly; 63. a feed motor; 64. and a feed inlet.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is apparent that the described embodiments are only a part of the embodiments of the present application, not all of the embodiments, and all other embodiments obtained by a person having ordinary skill in the art without making creative efforts based on the embodiments in the present application are within the scope of protection of the present application.

As shown in fig. 1-4, the embodiment of the application discloses a water-cooled biomass combustion device, which comprises an inner barrel 10 and an outer barrel 20 which are transversely arranged, wherein the inner cavity of the inner barrel 10 is a combustion chamber 11, one end of the inner barrel 10 is provided with a furnace mouth 12, a furnace door 13 is arranged at the furnace mouth 12, and the other end of the inner barrel 10 is connected with a flue gas treatment device. The outer diameter of the inner cylinder 10 is smaller than the inner diameter of the outer cylinder 20, and annular gaps 30 are formed between the outer wall of the inner cylinder 10 and the inner wall of the outer cylinder 20 at intervals. Two annular plates are arranged at the end part of the inner cylinder 10, which is close to the furnace mouth 12, a water interlayer 14 is formed between the two annular plates, and the water interlayer 14 is communicated with the annular gap 30. The lower side of the outer cylinder 20 is connected with a water inlet pipe 21, the upper side is connected with a water outlet pipe 22, and the water inlet pipe 21 and the water outlet pipe 22 are communicated with the annular gap 30, so that circulating water flow can be formed in the water interlayer 14 and the annular gap 30, and the wall of the inner cylinder 10 is cooled.

A feeding pipe 40 is arranged above the outer cylinder 20, the discharging end of the feeding pipe 40 sequentially passes through the outer cylinder 20, the annular gap 30 and the inner cylinder 10 and then is suspended above the combustion chamber 11, and a feeding device 60 is connected at the feeding pipe 40. Biomass fuel is fed into the feed tube 40 through the feed device 60. Specifically, the feeding device 60 includes a feeding auger 61, one end of the feeding auger 61 is connected with a feeding motor 63 through a chain component 62, the other end of the feeding auger 61 is communicated with the side wall of the feeding pipe 40, a feeding port 64 is formed in the feeding auger 61, a large hopper can be arranged on the feeding port 64, biomass fuel in the large hopper enters the feeding auger 61 through the feeding port 64, and the feeding motor 63 drives the feeding auger 61 to rotate through the movement of the driving chain component 62, so that the biomass fuel is conveyed into the feeding pipe 40 and then falls into the combustion chamber 11 for full combustion.

A first air inlet cavity 50 is further arranged on one side of the water interlayer 14 close to the oven door 13, and the first air inlet cavity 50 is connected with a blower 52 through an air inlet pipe 51, namely, air is sucked into the first air inlet cavity 50 by the blower 52. A plurality of air supply pipes 53 are annularly arranged on the inner wall of the inner cylinder 10, the length direction of the air supply pipes 53 is consistent with the length direction of the inner cylinder 10, a plurality of air supply holes 54 are formed in the pipe wall of the air supply pipes 53 at intervals, and one end of each air supply pipe 53 is communicated with the first air inlet cavity 50 after passing through the water interlayer 14. Thus, the air in the first air inlet cavity 50 can reach the combustion chamber 11 through the air supply pipe 53 and the air supply hole 54, so that sufficient oxygen is provided for the combustion of biomass particles, and the sufficient combustion of the biomass particles is ensured. Preferably, the air supply pipe 53 has a tubular structure formed by a circular arc plate and the inner wall of the inner cylinder 10, and the air supply hole 54 is formed in the circular arc plate. Thus, one side of the air supply pipe 53 can directly utilize the inner wall of the existing inner cylinder 10, and circulating water in the annular gap 30 cools the inner cylinder 10, so that air entering the air supply pipe 53 can be cooled, and the service life can be prolonged.

Further, a second air inlet cavity 55 is arranged on the wall of the outer barrel 20 far away from one side of the furnace door 13, and the second air inlet cavity 55 is communicated with the first air inlet cavity 50 through a first air guide pipe 56, so that air in the first air inlet cavity 50 can be guided into the second air inlet cavity 55 through the first air guide pipe 56. A plurality of ventilation pipes 57 are arranged between the second air inlet cavity 55 and the inner cavity of the inner barrel 10, and wind is introduced into the front end of the combustion chamber 11 through the ventilation pipes 57, so that the air in the combustion chamber 11 can be ensured to be sufficient, and the biomass particles can be ensured to be fully combusted.

When specifically setting up, set up second guide duct 58 between first air inlet chamber 50 and inlet pipe 40, second guide duct 58 communicates first air inlet chamber 50 and inlet pipe 40, can introduce the inlet pipe 40 with the wind like this in, thereby can avoid inlet pipe 40 department's air to be rare to produce negative pressure and cause the putty problem on the one hand, on the other hand let inlet pipe 40 department living beings granule and air let in the combustion chamber 11 once, make living beings granule burning more abundant.

A slag outlet 15 is also arranged at the bottom of the inner barrel 10, a slag outlet pipe 16 is arranged at the slag outlet 15 and extends out of the outer barrel 20, and a fire grate 17 is arranged at the slag outlet 15. Ash and the like generated by the combustion of biomass particles can be cleaned through the slag outlet 15 and the slag outlet pipe 16, and the operation is convenient.

The use principle of the water-cooled biomass combustion device in the embodiment is as follows: the feeding motor 63 drives the chain assembly 62 to move so as to drive the feeding auger 61 to rotate, and biomass fuel is continuously conveyed into the combustion chamber 11 through the feeding pipe 40 for ignition combustion; the water inlet pipe 21 and the water outlet pipe 22 are communicated, and circulating water is filled in the annular gap 30 and the water interlayer 14 and circulates; the air in the first air inlet cavity 50 is blown into the first air inlet cavity 50 by the blower 52, and the air in the first air inlet cavity 50 respectively reaches the combustion chamber 11 from the air supply pipe 53 through the air supply hole 54, enters the front end of the combustion chamber 11 from the air supply pipe 57 after reaching the second air inlet cavity 55 from the first air guide pipe 56, and enters the feed pipe 40 from the second air guide pipe 58 and then enters the combustion chamber 11 together with the biomass fuel. In this way, not only the biomass fuel in the combustion chamber 11 can be fully combusted, but also the inner cylinder 10 and the air supply pipe 53 can be cooled, so that the service life of the biomass fuel can be prolonged.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims

1. A water-cooled biomass combustion device is characterized in that: including inner tube (10) and urceolus (20) of transverse arrangement, the inner chamber of inner tube (10) is combustion chamber (11), constitute annular clearance (30) between inner tube (10) and urceolus (20), the one end of inner tube (10) is provided with fire door (12), one end and flue gas treatment facility are connected, fire door (13) are provided with in fire door (12) department, be provided with water intermediate layer (14) between fire door (12) and inner tube (10) tip, water intermediate layer (14) and annular clearance (30) intercommunication, urceolus (20) downside is connected with inlet tube (21), upside are connected with outlet pipe (22), inlet tube (21), outlet pipe (22) all communicate with annular clearance (30), urceolus (20) top is provided with inlet pipe (40), the discharge end of inlet pipe (40) passes in proper order in urceolus (20), annular clearance (30), the rear suspension of inner tube (10) is in combustion chamber (11) top, water intermediate layer (14) still are provided with first air inlet cavity (50) adjacent fire door (13) one side, first air inlet cavity (50) are connected with air inlet pipe (52) through annular blast pipe (52), the length direction of the air supply pipe (53) is consistent with the length direction of the inner cylinder (10), a plurality of air supply holes (54) are formed in the pipe wall of the air supply pipe (53) at intervals, and one end of the air supply pipe (53) is communicated with the first air inlet cavity (50) after passing through the water interlayer (14).

2. The water-cooled biomass combustion device according to claim 1, characterized in that: the air supply pipe (53) is of a tubular structure formed by an arc-shaped plate and the inner wall of the inner cylinder (10), and the air supply hole (54) is formed in the arc-shaped plate.

3. The water-cooled biomass combustion device according to claim 1, characterized in that: the wall of the outer cylinder (20) far away from one side of the furnace door (13) is provided with a second air inlet cavity (55), the second air inlet cavity (55) is communicated with the first air inlet cavity (50) through a first air guide pipe (56), and a plurality of ventilation pipes (57) are arranged between the second air inlet cavity (55) and the inner cavity of the inner cylinder (10).

4. The water-cooled biomass combustion device according to claim 1, characterized in that: feed arrangement (60) are connected with in inlet pipe (40) department, feed arrangement (60) are including feeding auger (61), feeding motor (63) are connected through chain assembly (62) to feeding auger (61) one end, the other end and inlet pipe (40) lateral wall intercommunication, feed inlet (64) have been seted up on feeding auger (61).

5. The water-cooled biomass combustion device according to claim 4, characterized in that: the first air inlet cavity (50) is communicated with the feeding pipe (40) through a second air guide pipe (58).

6. The water-cooled biomass combustion device according to claim 1, characterized in that: the bottom of the inner cylinder (10) is also provided with a slag outlet (15), a slag outlet pipe (16) is arranged at the slag outlet (15) and extends to the outside of the outer cylinder (20), and a fire grate (17) is arranged at the slag outlet (15).