CN219362537U

CN219362537U - Biomass granular fuel conveying device

Info

Publication number: CN219362537U
Application number: CN202320435068.7U
Authority: CN
Inventors: 安路遥
Original assignee: Jining Huayuan Thermal Power Co Ltd
Current assignee: Jining Huayuan Thermal Power Co Ltd
Priority date: 2023-03-09
Filing date: 2023-03-09
Publication date: 2023-07-18
Anticipated expiration: 2033-03-09

Abstract

The utility model belongs to the field of biomass granular fuel conveying equipment, and particularly relates to a biomass granular fuel conveying device which comprises a mounting frame, wherein a rotary driving structure, a wind guide cover and a wind groove are connected onto the mounting frame, an air outlet is arranged on the wind guide cover, a shaft seat is connected onto the wind guide cover, a wind shaft is connected onto the wind shaft in a rotating manner, a fan blade is connected onto the wind groove, an air inlet is arranged on the wind groove, the air inlet is connected with the air outlet through an exhaust pipe, a feeding shell is connected onto a port of the wind groove, a feeding inlet and a discharging outlet are arranged on the feeding shell, a through hole corresponding to the wind groove is arranged on the feeding shell, a filter screen corresponding to the through hole is connected into the feeding shell in a rotating manner, a feeding screw is connected onto the feeding shaft, and the feeding shaft and the wind shaft are both connected with the rotary driving structure. The biomass granular fuel conveying device provided by the utility model not only reduces friction of the auger, but also effectively prevents fuel waste.

Description

Biomass granular fuel conveying device

Technical Field

The utility model relates to a biomass pellet fuel conveying device, and belongs to the field of biomass pellet fuel conveying equipment.

Background

In the fields of electric energy, heat energy and the like, the currently adopted boiler still takes the coal-fired boiler as the main part, but along with the factors of lack of coal resources, rising of coal price, environmental pollution and the like, the coal-fired boiler is gradually replaced by a biomass fuel boiler. The biomass granular fuel is a novel formed clean fuel which can be directly combusted and is prepared by taking agricultural and forestry waste as a raw material through the processes of crushing, mixing, extruding, drying and the like, can reduce the emission of CO2 and SO2, is beneficial to environmental protection and control of greenhouse gas emission, slows down climate change and reduces the occurrence of natural disasters, and is a renewable low-carbon, environment-friendly and clean new energy.

When the biomass fuel boiler is used, a fuel conveying device is required to convey biomass granular fuel into the boiler, and most of conveying modes adopted at present are screw conveying augers. For example, chinese patent application CN202121452587.1 discloses a biomass pellet fuel material conveying device, in order to guarantee the normal operation of auger, can set up the clearance between auger and the barrel generally, because biomass particles can produce partial piece fuel in the transportation process, these piece fuels will be detained and can't be carried in the clearance of barrel and auger, and fuel delivery is incomplete, can not only aggravate the friction of auger, influences the normal operation of auger, has still caused the waste of fuel.

Disclosure of Invention

According to the defects in the prior art, the technical problems to be solved by the utility model are as follows: the biomass granular fuel conveying device is complete in fuel conveying.

The biomass granular fuel conveying device comprises a mounting frame, a rotary driving structure, a wind guide cover and a wind groove are connected to the mounting frame, an air outlet is arranged on the wind guide cover, a shaft seat is connected to the wind guide cover, a wind shaft is connected to the wind shaft in a rotating mode, a fan blade is connected to the wind shaft, an air inlet is arranged on the wind groove, the air inlet is connected with the air outlet through an exhaust pipe, a feeding shell is connected to a port of the wind groove, a feeding inlet and a discharging outlet are arranged on the feeding shell, a through hole corresponding to the wind groove is arranged on the feeding shell, a filter screen corresponding to the through hole is connected in the feeding shell, a feeding shaft is connected to the feeding shaft in a rotating mode, and the feeding shaft and the wind shaft are connected with the rotary driving structure.

Preferably, the rotary driving structure is a servo motor.

Preferably, the shaft seat is fixedly connected with the wind scooper through a plurality of connecting ribs.

Preferably, the feeding shaft is connected with an upper gear, the wind shaft is connected with a lower gear, and a toothed chain is connected between the lower gear and the upper gear.

Preferably, the feeding shell comprises an upper shell and a lower shell, and the upper shell is fixedly connected with the lower shell through a plurality of bolts.

Preferably, the filter screen is semicircular, the two sides are provided with flanging parts, the two flanging parts are clamped between the upper shell and the lower shell, and the filter screen is provided with filter holes corresponding to the through holes.

Working principle and process:

when the biomass particle fuel filter is used, the rotary driving structure acts to drive the feeding shaft and the wind shaft to rotate, the feeding shaft drives the feeding screw to act, biomass particle fuel enters the feeding shell from the feeding hole and is discharged through the discharging hole under the action of the feeding screw, the chip fuel falls on the filter screen, the wind shaft drives the wind blade to act, the airflow generated by the wind blade enters the wind groove through the air outlet, the exhaust pipe and the air inlet in sequence under the action of the wind scooper, and then the airflow passes through the through hole and the filter screen to blow up the chip fuel, so that the chip fuel is discharged through the discharging hole together with the biomass particle fuel.

Compared with the prior art, the utility model has the following beneficial effects:

the biomass granular fuel conveying device can convey biomass granular fuel and scrap fuel together, and the fuel conveying is complete, so that friction of the auger is reduced, the service life of the auger is prolonged, and fuel waste is effectively prevented.

Drawings

FIG. 1 is a front view of the present utility model;

fig. 2 is a cross-sectional view at A-A in fig. 1.

In the figure: 1. a wind scooper; 2. a mounting frame; 3. a lower gear; 4. a wind shaft; 5. a shaft seat; 6. a connecting rib; 7. a fan blade; 8. a rotary driving structure; 9. a toothed chain; 10. a top gear; 11. a feeding shaft; 12. a bolt; 13. a feed inlet; 14. an upper housing; 15. a lower housing; 16. a wind groove; 17. a feeding screw; 18. a filter screen; 19. a discharge port; 20. a through hole; 21. an air inlet; 22. an exhaust pipe; 23. an air outlet; 24. a burring part; 25. and (5) filtering holes.

Detailed Description

Embodiments of the utility model are further described below with reference to the accompanying drawings:

example 1:

as shown in fig. 1 and 2, the biomass pellet fuel conveying device according to the utility model comprises a mounting frame 2, wherein a rotary driving structure 8, an air guide cover 1 and an air groove 16 are connected to the mounting frame 2, an air outlet 23 is arranged on the air guide cover 1, an axle seat 5 is connected in the air guide cover 1, an air shaft 4 is connected in the axle seat 5 in a rotating manner, a fan blade 7 is connected to the air shaft 4, an air inlet 21 is arranged on the air groove 16, the air inlet 21 is connected with the air outlet 23 through an exhaust pipe 22, a feeding shell is connected to a port of the air groove 16, a feeding port 13 and a discharging port 19 are arranged on the feeding shell, a through hole 20 corresponding to the air groove 16 is arranged on the feeding shell, a filter screen 18 corresponding to the through hole 20 is connected in the feeding shell, a feeding shaft 11 is connected in the feeding shell in a rotating manner, a feeding spiral 17 is connected to the feeding shaft 11, and both the feeding shaft 11 and the air shaft 4 are connected with the rotary driving structure 8.

Working principle and process:

during the use, rotary driving structure 8 action drives feeding axle 11 and wind axle 4 rotation, feeding axle 11 drives feeding spiral 17 action, in the biomass pellet fuel gets into the pay-off casing from feed inlet 13, discharge through discharge gate 19 under the effect of feeding spiral 17, the piece fuel falls on filter screen 18, wind axle 4 drives fan blade 7 action, the air current that fan blade 7 produced gets into wind groove 16 through air exit 23, blast pipe 22 and air inlet 21 in proper order under the effect of wind scooper 1, then the air current passes through-hole 20 and filter screen 18 and blows the piece fuel, make piece fuel discharge together with biomass pellet fuel through discharge gate 19.

Example 2:

as shown in fig. 1 and 2, on the basis of example 1,

preferably, the rotary driving structure 8 is a servo motor, so that the operation stability is good and the control is convenient;

preferably, the shaft seat 5 is fixedly connected with the wind scooper 1 through a plurality of connecting ribs 6, and the structure is simple and the stability is good;

preferably, the feeding shaft 11 is connected with the upper gear 10, the wind shaft 4 is connected with the lower gear 3, the toothed chain 9 is connected between the lower gear 3 and the upper gear 10, and the synchronous linkage of the feeding shaft 11 and the wind shaft 4 is realized through the cooperation of the lower gear 3, the upper gear 10 and the toothed chain 9, so that the structure is simple, and the operation is stable;

preferably, the feeding shell comprises an upper shell 14 and a lower shell 15, the upper shell 14 and the lower shell 15 are fixedly connected through a plurality of bolts 12, and the upper shell 14 and the lower shell 15 can be detached, so that the installation and maintenance of the internal structure of the feeding shell are facilitated;

preferably, the filter screen 18 is semicircular, the two sides are provided with flanging parts 24, the two flanging parts 24 are clamped between the upper shell 14 and the lower shell 15, and the filter screen 18 is provided with filter holes 25 corresponding to the through holes 20, so that the filter screen 18 is convenient to detach and maintain.

Working principle and process:

Claims

1. A biomass pellet fuel conveying device, which is characterized in that: including mounting bracket (2), be connected with rotary drive structure (8) on mounting bracket (2), wind scooper (1) and wind duct (16), be equipped with air outlet (23) on wind scooper (1), be connected with axle bed (5) in wind scooper (1), axle bed (5) internal rotation is connected with wind axle (4), be connected with fan blade (7) on wind duct (4), be equipped with air inlet (21) on wind duct (16), be connected with feeding casing through blast pipe (22) between air inlet (21) and air outlet (23), be equipped with feed inlet (13) and discharge gate (19) on the feeding casing, be equipped with on the feeding casing with wind duct (16) corresponding through-hole (20), be connected with in the feeding casing with filter screen (18) that through-hole (20) are corresponding, feeding casing internal rotation is connected with feeding axle (11), be connected with feeding spiral (17) on feeding axle (11), feeding axle (11) and wind axle (4) all link with rotary drive structure (8).

2. The biomass pellet fuel delivery device according to claim 1, wherein: the rotary driving structure (8) is a servo motor.

3. The biomass pellet fuel delivery device according to claim 1, wherein: the shaft seat (5) is fixedly connected with the wind scooper (1) through a plurality of connecting ribs (6).

4. The biomass pellet fuel delivery device according to claim 1, wherein: the feeding shaft (11) is connected with an upper gear (10), the wind shaft (4) is connected with a lower gear (3), and a toothed chain (9) is connected between the lower gear (3) and the upper gear (10).

5. The biomass pellet fuel delivery device according to any one of claims 1 to 4, wherein: the feeding shell comprises an upper shell (14) and a lower shell (15), and the upper shell (14) and the lower shell (15) are fixedly connected through a plurality of bolts (12).

6. The biomass pellet fuel delivery device according to claim 5, wherein: the filter screen (18) is semicircular, flanging parts (24) are arranged on two sides of the filter screen, the two flanging parts (24) are clamped between the upper shell (14) and the lower shell (15), and filter holes (25) corresponding to the through holes (20) are formed in the filter screen (18).