CN209934273U

CN209934273U - Smoke dust settling device of biomass combustion hot blast stove

Info

Publication number: CN209934273U
Application number: CN201920659745.7U
Authority: CN
Inventors: 肖吉林; 王睿; 温华中; 郑小兵; 王星; 王军政; 付文哲; 谢刘强
Original assignee: Xian Senwas Agricultural Science and Technology Corp
Current assignee: Xian Senwas Agricultural Science and Technology Corp
Priority date: 2019-05-09
Filing date: 2019-05-09
Publication date: 2020-01-14
Anticipated expiration: 2029-05-09

Abstract

The utility model discloses a smoke dust settling device of a biomass combustion hot blast stove, which comprises a stove body, wherein a smoke outlet of the stove body is connected with a settling smoke box which is bent upwards and has an opening at the upper end, the bottom end of the inner wall of the settling smoke box is connected with a settling baffle which is inclined towards the stove body and extends upwards, the settling baffle is connected with a fire baffle, a gap is left between the fire baffle and the inner wall of the upper end of the settling smoke box, the settling baffle and the fire baffle form a smoke gas inflow channel, and the smoke gas inflow channel is communicated with the stove body; the smoke dust generated by biomass combustion is guided into the smoke dust inflow channel through the fire baffle, the sectional area of the smoke dust is sharply increased after the smoke dust flows into the channel, the flow speed is reduced, meanwhile, a part of the smoke dust is adsorbed or slides to the sedimentation smoke box through the reflection of the sedimentation baffle, and finally, the smoke dust enters an external heat exchanger through the smoke gas outflow channel; the smoke dust is adsorbed and slides down and then settles into a settling smoke box, and then the settled smoke dust is cleaned from a settling box ash cleaning pipe through a settling box ash cleaning door.

Description

Smoke dust settling device of biomass combustion hot blast stove

Technical Field

The utility model belongs to the technical field of biomass combustion dust processing apparatus, concretely relates to device is subsided to smoke and dust of biomass combustion hot-blast furnace.

Background

With the gradual promotion of energy-saving and environment-friendly policies in China, biomass energy is widely used as novel clean energy capable of replacing coal in the tobacco industry, coal-fired hot blast stoves are generally used for biomass combustion in tobacco industry enterprises, but the coal-fired hot blast stoves are more suitable for a coal-fired mode of natural blowing, less smoke and dust and low flue gas flow rate. When the biomass fuel is used for combustion, the heat exchange pipeline of the heat exchanger matched with the hot blast stove is easily blocked due to large smoke dust.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a device is subsided to smoke and dust of biomass combustion hot-blast furnace can prevent that the smoke and dust that produces from causing the jam to the heat transfer pipe after the biomass combustion.

The utility model provides a technical scheme who adopts is, a smoke and dust of biomass combustion hot-blast furnace subsides device, including the furnace body, the connection of the play smoke outlet department of furnace body is upwards buckled and the upper end open-ended subsides the smoke box, subsides smoke box inner wall bottom and is connected to the furnace body slope and upwards extends subside the baffle, subsides and connects the fender fire board on the baffle, keeps off fire board and subsides and leave the space between the upper end inner wall of smoke box, subsides the baffle, keeps off fire board and forms flue gas inflow channel, flue gas inflow channel and furnace body intercommunication.

The utility model discloses a characteristics still lie in:

the sedimentation smoke box is positioned at the bottom end of the smoke inflow channel and is connected with a sedimentation ash removal pipe, and the port of the sedimentation ash removal pipe is connected with a sedimentation box ash removal door.

The included angle between the sedimentation baffle and the inner wall of the bottom end of the sedimentation smoke box is 10-30 degrees.

The opening at the upper end of the sedimentation smoke box is connected with a flange.

The fire baffle plate vertically settles the inner wall of the bottom end of the smoke box.

The utility model has the advantages that:

the utility model relates to a smoke dust settling device of a biomass combustion hot blast stove, which leads smoke dust generated by biomass combustion into a smoke dust inflow channel through a fire baffle, and part of the smoke dust is adsorbed or slides to a settling smoke box through the reflection of a settling baffle while the sectional area of the smoke dust is sharply increased and the flow speed is reduced after the smoke dust passes through the inflow channel, and finally enters an external heat exchanger through a smoke gas outflow channel; the smoke dust is adsorbed and slides down and then is settled in a settlement smoke box, and then the settled smoke dust is cleaned from a settlement box dust cleaning pipe through a settlement box dust cleaning door; have fine smoke and dust to subside the effect, can effectively reduce heat exchanger deashing volume and frequency, the utility model discloses a device still has simple structure, low in manufacturing cost, the advantage of the maintenance of being convenient for.

Drawings

FIG. 1 is a schematic structural view of a smoke dust settling device of a biomass combustion hot blast stove of the present invention;

FIG. 2 is a sectional view of a smoke dust settling device of the biomass combustion hot blast stove of the present invention;

fig. 3 is a schematic view of the sedimentation process of the smoke dust in the present invention.

In the figure, 1, a furnace body, 2, a flue gas inflow channel, 3, a flange, 4, a fire damper, 5, a settling baffle, 6, a settling smoke box, 7, smoke, 8, a settling ash cleaning pipe and 9, a settling box ash cleaning door.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses a device is subsided to smoke and dust of biomass combustion hot-blast furnace, as shown in figure 1 and figure 2, including furnace body 1, the connection of the play smoke mouth department of furnace body 1 is upwards buckled and the upper end open-ended subsides smoke box 6, subsides that 6 inner wall bottoms of smoke box are connected to the baffle 5 that subsides that just upwards extends to the slope of furnace body 1, subsides and connects fire damper 4 on the baffle 5, keeps off fire damper 4 and subsides and leave the space between the upper end inner wall of smoke box 6, subsides baffle 5, fire damper 4 forms flue gas inflow channel 2, flue gas inflow channel 2 and furnace body 1 intercommunication.

Subside and lie in 2 bottoms of flue gas inflow channel on the smoke box 6 and connect and subside deashing pipe 8, subside the connection of deashing door 9 of subside case in the port department of deashing pipe 8.

The included angle between the sedimentation baffle 5 and the inner wall of the bottom end of the sedimentation smoke box 6 is 10-30 degrees.

The opening at the upper end of the sedimentation smoke box 6 is connected with a flange 3.

The fire baffle 4 vertically settles the inner wall of the bottom end of the smoke box 6.

The utility model relates to a smoke and dust of biomass combustion hot-blast furnace subsides effect of each part in the device as follows:

the furnace body 1 provides a place where the biomass burner burns biomass particles, and heat, smoke, and the like are generated during combustion.

The flue gas inflow channel 2 is enclosed by subsiding the smoke box 6, subsiding baffle 5, keeping off fire board 4 and keeps off and forms, through the outlet flue of furnace body 1, with furnace body 1 intercommunication, plays the effect to the flue gas water conservancy diversion, can also hold the smoke and dust that subsides.

The flange 3 is used for connecting the sedimentation smoke box 6 with an external heat exchanger.

On 4 bottoms of fire baffles were connected and are subsided baffle 5, the 6 inner walls of smoke box were subsided in both sides limit connection, the upper end leaves the space with subsiding smoke box 6, can lead to the smoke and dust inflow channel 2 with the smoke and dust of biomass burning, can also block the burning fire in the furnace body 1.

The bottom end and the two sides of the sedimentation baffle plate 5 are connected with the inner wall of the sedimentation smoke box 6, so that the smoke generated in the smoke flowing channel 2 is blocked, and the accumulation of the smoke is facilitated.

The heights of the fire baffle 4 and the sedimentation baffle 5 are adjustable.

The sedimentation smoke box 6 plays a role in increasing the stroke of smoke flowing generated by combustion, and plays a role in guiding smoke with smoke.

The sedimentation box ash removing pipe 8 is connected with the sedimentation smoke box 6 and communicated with the smoke inflow channel 2, so that smoke in the smoke inflow channel 2 can be removed conveniently.

The utility model relates to a smoke and dust of biomass combustion hot-blast furnace subsides device's application method does:

as shown in figure 3, the biomass fuel is combusted in the furnace body 1 to generate flue gas with smoke dust, the flue gas enters the flue gas inflow channel 2 through a gap between the fire baffle plate 4 and the sedimentation smoke box 6, the smoke dust passes through the inflow channel 2, the sectional area of the smoke dust is sharply increased, the flow speed of the smoke dust is reduced, meanwhile, a part of the smoke dust is adsorbed or slides to the sedimentation smoke box 6 through reflection of the sedimentation baffle plate 5, and the sedimentation smoke dust 7 is generated in an accumulated mode and then is cleaned from the sedimentation smoke dust cleaning pipe 8 through the sedimentation smoke dust cleaning door 9.

In this way, the smoke dust settling device of the biomass combustion hot blast stove guides the smoke dust generated by biomass combustion into the smoke dust inflow channel through the fire damper, the sectional area of the smoke dust is sharply increased after passing through the inflow channel, the flow velocity is reduced, and meanwhile, a part of the smoke dust is adsorbed or slides to the settling smoke box through reflection of the settling baffle plate, and finally, the smoke dust enters the external heat exchanger through the smoke gas outflow channel; the smoke dust is adsorbed and slides down and then is settled in a settlement smoke box, and then the settled smoke dust is cleaned from a settlement box dust cleaning pipe through a settlement box dust cleaning door; has good smoke dust settling effect and can effectively reduce the dust removal amount and frequency of the heat exchanger.

Claims

1. The utility model provides a device is subsided to smoke and dust of biomass combustion hot-blast furnace, a serial communication port, including furnace body (1), the outlet flue department of furnace body (1) connects upwards to buckle and upper end open-ended subsides smoke box (6), subside smoke box (6) inner wall bottom and be connected with to furnace body (1) slope and upwards the baffle (5) that subsides of extending, subside and connect fire damper (4) on baffle (5), leave the space between fire damper (4) and the upper end inner wall of subsiding smoke box (6), subside baffle (5), fire damper (4) and form flue gas inflow passageway (2), flue gas inflow passageway (2) and furnace body (1) intercommunication.

2. The smoke dust settling device of the biomass combustion hot blast stove according to claim 1, wherein the settling smoke box (6) is connected with a settling ash cleaning pipe (8) at the bottom end of the smoke inflow channel (2), and the port of the settling ash cleaning pipe (8) is connected with a settling box ash cleaning door (9).

3. The smoke dust settling device of the biomass combustion hot blast stove according to claim 1, wherein the included angle between the settling baffle (5) and the inner wall of the bottom end of the settling smoke box (6) is 10-30 degrees.

4. The smoke dust settling device of the biomass combustion hot blast stove according to claim 1, wherein the opening at the upper end of the settling smoke box (6) is connected with a flange (3).

5. The smoke dust settling device of the biomass-fired hot blast stove according to claim 1, wherein the fire damper (4) vertically settles the inner wall of the bottom end of the smoke box (6).