CN212538270U

CN212538270U - Straw particle gasification combustion hot water boiler

Info

Publication number: CN212538270U
Application number: CN202020588034.8U
Authority: CN
Inventors: 林平
Original assignee: Qingdao Zhifuyuan Machinery Co ltd
Current assignee: Qingdao Zhifuyuan Machinery Co ltd
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-02-12
Anticipated expiration: 2030-04-09

Abstract

A straw particle gasification combustion hot water boiler relates to straw particle gasification combustion application technology. The combustion device comprises a blanking chamber, a gasification chamber is connected with the combustion chamber, and the combustion chamber is connected with a return smoke vent. The grate comprises a fixed grate and a movable grate, the fixed grate is arranged on the upper opening of the furnace bottom base box, the forward stroke of the movable grate is positioned above the fixed grate, the backward stroke of the movable grate is positioned in the bottom base box, and the movable grate is provided with a transmission mechanism. The combustion device comprises a blanking chamber, a laser level gauge and an ignition rod which are buried in the granular fuel. The utility model discloses produced beneficial effect: because the blanking chamber and the gasification chamber are in a high-temperature oxygen-deficient state, a large amount of combustible gas is generated for gasification and combustion, and the flue gas generated by combustion enters the multiple-turn-back flue for heat exchange. The straw particles are subjected to dry distillation gasification combustion, the combustion is sufficient, the combustion temperature is high, the carbon emission is less, heat exchange is performed in the water drum through the multiple-time turning-back flue, the heat exchange is sufficient, the heat efficiency is extremely high, and the carbon emission is reduced.

Description

Straw particle gasification combustion hot water boiler

Technical Field

The utility model relates to a straw particle gasification combustion hot water boiler.

Background

The straw gasification combustion method has the advantages that the resource of crop straws is rich in China, the emission amount of smoke and dust and the emission amount of carbon can be greatly reduced by gasification combustion of straw particles, the pollution to the atmosphere is reduced, the combustion is sufficient, the heat efficiency is high, and the method is the direction of people striving for research and development at present. At present, the problem of blockage caused by coking commonly existing in a straw particle gasification combustion boiler is solved, and an ideal straw particle gasification combustion hot water boiler is not developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a straw granule gasification burning boiler, straw gasification burning, the burning is abundant completely, and the thermal efficiency is high, make full use of straw resource, reduce the carbon emission volume.

The technical scheme of the utility model, straw granule gasification burning hot water boiler, including furnace body 1, heat preservation 2, base case 3, feeding device, burner, grate, the discharge flue of turning back, water drum 30, dust collector 35 and electric cabinet 5, the characteristic is burner includes that material room 11' connects vaporizer 21, and combustor 22 is connected to the vaporizer, and the discharge flue 24 of turning back is connected to the combustor. The grate comprises a fixed grate 20 and a movable grate 16, the fixed grate 20 is arranged at the upper opening of the furnace bottom base box, the movable grate 16 is arranged above the fixed grate 20 in a forward stroke and in the bottom base box 3 in a return stroke, and the movable grate is driven by a transmission mechanism.

The driving mechanism of the moving grate is composed of a first motor 17, a first driving chain wheel 18, a first driven chain wheel 19 connected through a first chain 14, and a driving grate gear 13 coaxial with the first driven chain wheel and connected with a driven grate gear 15 through the grate in sequence.

The feeding device comprises a hopper 4, an auger 6, a blanking port 11, a laser level gauge 12 and an auger transmission mechanism. The two screw conveyors 6 are arranged side by side, the screw conveyor transmission mechanism comprises a second motor 7 and a second driving chain wheel 8 which are connected with a second driven chain wheel 9 through a second chain 9', the second driven chain wheel is coaxial with a first middle transmission chain wheel 10, and the first middle transmission chain wheel 10 is connected with a middle transmission chain wheel of the screw conveyor at the other side.

The combustion device comprises a material chamber 11', a blanking port 11, a lower laser level gauge 12 and an ignition rod 23 which are buried in the granular fuel, and a gasification chamber (21) is gasified due to high-temperature oxygen deficiency and is combusted in the gasification chamber (21) and a connected combustion chamber (22).

The utility model discloses produced beneficial effect:

the utility model discloses establish and carry the feed chamber with the material through the feed screw feeder, laser material level meter control material level, the ignition rod buries in the fuel that falls, starts the burning after the ignition, because of the vaporizer of blanking room and connection is in high temperature oxygen deficiency state, will produce a large amount of combustible gas, at vaporizer and combustion chamber internal combustion, the flue gas that the burning produced gets into the flue of turning back many times, heat transfer in the water drum. Organic combustible gas generated by dry distillation gasification of straw particles is combusted, the combustion is sufficient, the combustion temperature is high, carbon emission is less, heat exchange is performed in the water drum through the multiple-time return flue, heat exchange is sufficient, and the heat efficiency is extremely high. Fully utilizes straw resources and reduces carbon emission.

Drawings

Fig. 1 is a front view of the present invention.

Detailed Description

With the combination of the attached drawings, the straw particle gasification combustion hot water boiler comprises a furnace body 1, a heat insulation layer 2, a base box 3, a feeding device, a combustion device, a grate, a return exhaust flue, a water drum 30, a dust removal device and an electric cabinet 5, and is characterized in that the combustion device comprises a material chamber 11', a connection gasification chamber 21, a connection combustion chamber 22 and a connection return exhaust flue 24. The fire grate comprises a fixed fire grate 20 and a movable fire grate 16, the fixed fire grate 20 is arranged on the upper opening of the fire base, a transverse air inlet 38 is arranged below the fixed fire grate, and air can enter a combustion layer on the upper movable fire grate to support combustion through the grate holes of the fixed fire grate. The moving grate 16 is located above the fixed grate 20 in the forward stroke and in the base box 3 in the backward stroke, and is driven by a transmission mechanism.

The combustion device comprises a blanking port 11 of a material chamber 11', a laser level gauge 12 is arranged below the blanking port, an ignition rod 23 is buried in the granular fuel, dry distillation gasification is generated in the gasification chamber 21 due to high temperature and oxygen deficiency, and combustion is carried out in the gasification chamber 21 and a combustion chamber 22 connected with the gasification chamber. The gasification chamber 21 is a fuel accumulation region.

The utility model discloses the rear end is equipped with dust collector, and it includes that last stage goes upward flue 24' and connects cigarette ash case 31, and cigarette ash case 31 connects dust remover 35 through exhaust pipe 36, and the dust remover connects chimney 32 through draught fan 33.

The electric cabinet 5 starts and stops the feeding of the auger motor 7 according to the material level condition detected by the laser material level meter 12. And the start and stop of the induced draft fan 33 and the rotating speed thereof are controlled according to the water temperature displayed by the water temperature meter, and the intermittent moving time of the moving grate 16 is also controlled. The left side of the feeding chamber is provided with a secondary air inlet 40 for supplementing air through the feeding chamber. An inclined ash chute 39 is arranged at the rear end of the movable grate, so that ash burnt on the grate slides into the base box 3. One side of the base box is provided with slag cleaning ports 37 and 29.

Reference numeral 27 is a lower return smoke box. The rear wall of the furnace body is provided with a hot water outlet 34.

Claims

1. A straw particle gasification combustion hot water boiler comprises a boiler body (1), a heat insulation layer (2), a base box (3), a feeding device, a combustion device, a grate, a turn-back exhaust channel, a water drum (30), a dust removal device and an electric cabinet (5), and is characterized in that the combustion device comprises a material chamber (11'), a gasification chamber (21) is connected, the gasification chamber is connected with a combustion chamber (22), and the combustion chamber is connected with a turn-back exhaust channel (24); the grate comprises a fixed grate (20) and a movable grate (16), the fixed grate (20) is arranged at the upper opening of the grate base, the movable grate (16) is arranged above the fixed grate (20) in a forward stroke and in a base box (3) in a return stroke, and the movable grate is driven by a transmission mechanism.

2. The straw particle gasification combustion hot water boiler according to claim 1, characterized in that the driving mechanism of the traveling grate is composed of a first motor (17), a first driving sprocket (18), a first driven sprocket (19) connected through a first chain (14), and a driving grate gear (13) coaxial with the first driven sprocket and connected through a grate to a driven grate gear (15) in sequence.

3. The straw particle gasification combustion hot water boiler as claimed in claim 1 or 2,

the feeding device comprises a hopper (4), a feeding auger (6), a blanking port (11), a laser level meter (12) and an auger transmission mechanism; two feeding augers (6) are arranged side by side, the auger transmission mechanism comprises a second motor (7), a second driving chain wheel (8) and a second driven chain wheel (9) which are connected through a second chain (9'), the second driven chain wheel is coaxial with a first middle transmission chain wheel (10), and the first middle transmission chain wheel (10) is connected with a middle transmission chain wheel of another auger.

4. The straw particle gasification combustion hot water boiler as claimed in claim 3, wherein the combustion device comprises a material chamber (11'), an inner blanking port (11), a laser material level meter (12) arranged below the material chamber, an ignition rod (23) embedded in particle fuel, the particle fuel embedded by the ignition rod (23) is connected with the gasification chamber (21), the gasification chamber (21) is lack of oxygen at high temperature to generate gasification, and the gasification chamber (21) and the connected combustion chamber (22) are combusted.

5. The straw particle gasification combustion hot water boiler as claimed in claim 4, wherein the dust removing device comprises a last upward smoke exhaust pipe (24') connected with a smoke box (31) at the rear end of the boiler body, the smoke box (31) is connected with a dust remover (35) through a smoke exhaust pipe (36), and the dust remover is connected with a chimney (32) through an induced draft fan (33).