CN201277799Y

CN201277799Y - Environment friendly energy saving wooden hust boiler drier

Info

Publication number: CN201277799Y
Application number: CNU2008201044435U
Authority: CN
Inventors: 覃之双; 梁业世
Original assignee: LINGSHAN SHUANGFA ICE FACTORY
Current assignee: LINGSHAN SHUANGFA ICE FACTORY
Priority date: 2008-08-04
Filing date: 2008-08-04
Publication date: 2009-07-22
Anticipated expiration: 2018-08-04

Abstract

The utility model discloses an environment-friendly and energy-saving sawdust boiler parcher which comprises a boiler discharge flue, a heating passage, a sawdust oven and a dust remover, wherein one end of the heating passage is communicated with the boiler discharge flue, the sawdust oven is arranged on the heating passage and is provided with a conveyer capable of conveying sawdust from the feeding end to the discharge end, and the dust remover for collecting and discharging water vapor and dust in the oven is arranged on the sawdust oven. Wet sawdust enters the sawdust oven from the feeding end of the sawdust oven of the parcher and is conveyed to the discharge end by the conveyer. In the conveying process, because the heating passage communicated with the boiler discharge flue is arranged below the oven, the high-temperature heat of the boiler discharge flue is utilized to heat and parch the wet sawdust, and the parched sawdust can be conveyed to a blower and is sprayed to a combustion chamber of a boiler for combustion. The utility model fully utilizes heat energy discharged from the flue, saves energy sources, avoids the problem of environmental pollution due to the airing of the wet sawdust and is suitable for various sawdust boilers.

Description

Environmental protection and energy saving wood chaff boiler dryer

Technical field

The utility model relates to a kind of steam boiler, especially comprises the wooden chaff boiler and the wooden chaff dryer thereof of combustion chamber.

Background technology

The wood chaff is wooden granule and the powder that people produce when timber is carried out sawing, and general wood-working factory all has one to tens ton wooden chaff to produce every day, all is that pile up like a mountain usually, is placed into weathering and goes rotten, and the waste resource pollutes and destroys environment.In the last few years; someone researches and develops the utilization of wooden chaff; be used to the coal, the oil fuel that replace boiler original; be about to the combustion chamber internal combustion that wooden chaff is sprayed onto boiler; the heat that produces is suitable with the boiler that burns general coal, and cost only is to burn 1/2 of coal, and the flue dust of discharge is than burning significantly reducing of coal; obvious economic helps the production of protection, energy savings and the enterprise of environment.Therefore, wooden chaff boiler is in medium-sized and small enterprises' popularization and application, and especially be with in Guangdong Province and Guangxi one.Cool off owing to will discharge water on the contact-making surface between saw and the wood when timber is carried out sawing, so the wooden chaff that saw comes out all wets, water content is very big.The wooden chaff of existing wooden chaff burning in boiler will carry out all just spraying into after airing is done that boiler combustion is indoor burns.The airing of wet wooden chaff needs bigger place and long time, and the very time-consuming and effort of the process of collecting after wooden chaff airing and airing if the wind conference blows away many wooden chaffs that loose, is existed everywhere as sandstorm, and environment is polluted and economic loss; Particularly in the mould rainy day, dry wooden chaff and just be a problem very much, at this moment, the fuel of wooden chaff boiler is just being waited for rice to put in one's pan or is not being had rice and cooked, and the fuel of wooden chaff boiler can't ensure.

Summary of the invention

The purpose of this utility model provides a kind of environmental protection and energy saving wood chaff boiler dryer, and can solve prior art the problem that exists is done in wet wooden chaff airing, and environmental protection and energy-conservation, ensure the supply of wooden chaff boiler oil.

The utility model comprises the discharge flue of boiler, it is characterized in that also comprising:

The heat tunnel that one end communicates with described boiler exhaust gas passage;

Be located at above the described heat tunnel, wherein be provided with the wooden chaff baking oven that wooden chaff can be transported to the discharge end conveying device from feed end;

On described wooden chaff baking oven, be provided with the deduster of collecting and discharge interior water vapour of baking oven and dust.

Described heat tunnel comprises the inflection formula passage that heating input channel and heating output channel constitute, the input of heating input channel communicates with the boiler smoke outlet flue by pipeline, the output of heating output channel is discharged chimney by pipeline and flue dust and is communicated, and the heating input channel communicates by the mouth that turns back with the heating output channel.

On the side between heat tunnel and the wooden chaff baking oven, be provided with airflow hole.

Described conveying device is the screw propulsion conveyer.

The environmental protection and energy saving wood chaff boiler dryer of above structure, wet wooden chaff enters into wooden chaff baking oven from feed end and is transported to discharge end by the screw propulsion conveyer, in the process of carrying, because below the baking oven is the heat tunnel that communicates with described boiler exhaust gas passage, made full use of boiler has higher temperatures in the smokejack in discharging flue dust hot gas, to above the heat tunnel and by the airflow hole on the two sides between heat tunnel and the wooden chaff baking oven the wooden chaff that enters in the baking oven being carried out heated baking, discharge water vapour and the dust deduster above baking oven, the wooden chaff that baking is done in motion can will be done the combustion chamber internal combustion that wooden chaff is sprayed onto boiler by air blast from being transported to the front end of boiler after discharge end comes out.Make full use of the heat energy that boiler is discharged from smokejack, saved the energy, avoided the problem of environmental pollution in the process of the wet wooden chaff of airing, and saved human and material resources and time, ensured the supply of wooden chaff boiler oil.Thereby achieve the goal.

Description of drawings

Fig. 1 is a user mode structural representation of the present utility model.

Fig. 2 is the sectional structure enlarged diagram that A looks among Fig. 1.

Fig. 3 is the structure enlarged diagram that Fig. 2 analyses and observe along B-B.

The specific embodiment

Below, the utility model is described in further detail in conjunction with the accompanying drawings.

Shown in Figure 1, be user mode structural representation of the present utility model.In the drawings, prior art is that the wooden chaff that has dried is put into stokehold feed hopper 2, by the blast pipe 3 that communicates with stokehold feed hopper 2, the burner hearth that under the effect of air blast 1 wooden chaff is blown in the wooden chaff boiler 4 burns, and the flue dust that burning is produced is discharged by flue 5, air-introduced machine 6 and chimney 7.As everyone knows, in the flue dust that boiler 4 is discharged, also discharge hot gas---the heat energy of a large amount of high temperature simultaneously.The utility model communicates with discharge flue 5 by drawing cigarette channel 8 in air-introduced machine 6, from the heat tunnel of high temperature hot gas below wooden chaff baking oven 19 that discharge flue 5 introducing boilers are discharged continually, these high temperature hot gas of discharging continually can be carried out heated baking to the wet wooden chaff of wooden chaff baking oven 19 above it.Heat tunnel is the formula passage that turns back below wooden chaff baking oven 19, and input is connected with drawing cigarette channel 8, and output is communicated with Dust removal chimney 9 by output flue 10.Heat tunnel sees Fig. 2 and Fig. 3 for details.The size structure of wood chaff baking oven 19 is corresponding with heat tunnel, and wet wooden chaff has conveying device to transport from the inlet of wooden chaff baking oven 19 to outlet, and wet wooden chaff also is the process of a baking in the process of transporting.The length setting of wood chaff baking oven 19 passages is done by baking to outlet from feeder connection for wet wooden chaff.The dried wooden chaff that comes out is by baking oven discharge bucket 18 and following conveyer belt 25 thereof, under the drive of stokehold conveying motor 26, will do wooden chaff and deliver in the stokehold feed hopper 2, under the effect of air blast 1, will do wooden chaff and burn by the burner hearth that blast pipe 3 blows in the wooden chaff boiler 4.In order to improve baking efficient to wet wooden chaff, also be interval with two

dedusters

20,24 of collecting and discharging water vapour and dust in the baking oven on wooden chaff baking oven 19 passages, this two

deduster

20,24 is dedusting

chimney

22,23 discharge water steam and the dust by separately respectively.For lacking that the dust that makes discharge is tried one's best, protection environment, the water spray that in two

dedusters

20,24, has adopted existing most of dedusters the to use dirt device that disappears, the water that is sprayed is discharged and is reclaimed from outlet pipe 14 by water inlet pipe 21 input.Deduster the 20, the 24th, prior art products also can adopt general deduster.Certainly,

deduster

20,24 also can adopt and invent to some extent and create, the deduster that efficiency of dust collection is higher.In order to improve operating efficiency of the present utility model, also be sequentially provided with feed hopper 17, feeding web 15 and motor 16 thereof, the commentaries on classics hopper 13 of band reciprocating sieve and change material conveyer belt 12 and baking oven feed hopper 11 at the front end of wooden chaff baking oven 19.From the wet wooden chaff coarse fodder that wood-working factory ships, also have many length and the little timber of non-wood chaff and other foreign material not of uniform size, after the reciprocating sieve vibrations are filtered, got rid of non-wood chaff, on the feed hopper 17 and the conveyer belt 15 of below thereof of wet wooden chaff below reciprocating sieve is fallen, under the drive of transmission of electricity motivation 16, the conveyer belt 15 wooden chaff that will wet is delivered to and is changeed hopper 13 and change on the material conveyer belt 12, and the conveyer belt 12 wooden chaff that will wet is again delivered in baking oven feed hopper 11 and the wooden chaff baking oven 19 and toasted.The circuit that transports of wood chaff is seen arrow indication among Fig. 1.Wherein, empty arrow is that the wooden chaff of explanation moves in wooden chaff baking oven 19 and blast pipe 3, can't see at the outer surface of mechanism.

Sectional structure enlarged diagram shown in Figure 2, that A looks among Fig. 1, Fig. 3 of the structure enlarged diagram of analysing and observe along B-B in conjunction with Fig. 2 in Fig. 2, has done to analyse and observe to heating output channel 29 1 sides of the formula heat tunnel that turns back.As can be known, the outlet of heating output channel 29 is communicated with Dust removal chimney 9 by output flue 10 from two cutaway views; Heat the input of input channel 39 and draw cigarette channel 8 connections, the rear end communicates with heating output channel 29 by the mouth 26 that turns back, the top of heat tunnel is the holder chaff plate 28 of two arcs, diaphragm plate 28 between just wooden chaff baking oven 19 and the heat tunnel, the centre is provided with vertical clapboard 40 between two heat tunnels 39,29 and below the holder chaff plate 28 of two arcs, constitutes the formula heat tunnel that turns back.In that 5 high temperature hot gas of introducing enter heating input channel 39 by drawing cigarette channel 8 from the boiler exhaust gas road, enter heating output channel 29 through the mouth 26 that turns back, discharge from output flue 10 and Dust removal chimney 9 then.The high temperature hot gas of introducing can be carried out heated baking to the wet wooden chaff in wooden chaff baking oven 19 inner chambers 33 above the heat tunnel in the process of the one-in-and-one-out of the formula heat tunnel 39,29 that turns back.Wherein, on the both sides 27 of holder chaff plate 28, also be provided with a plurality of uniform airflow holes 32, thermal current in the heat tunnel 39,29 can flow to from this airflow hole 32 in wooden chaff baking oven 19 inner chambers 33 wet wooden chaff is carried out heated baking, further improves cured effect, accelerates drying rate.Because big in the wood of the thermal current pressure ratio in the heat tunnel 39,29 chaff baking oven 19 inner chambers 33 be not so the wooden chaff in wooden chaff baking oven 19 inner chambers 33 can be fallen the heat tunnel 39,29 from airflow hole 32.

In Fig. 2, in the inner chamber 33 of wooden chaff baking oven 19, be provided with right-hand screw and advance conveyer 31, the axle two ends of this conveyer 31 are fixed on the two ends of baking oven 19 by bearings at both ends 35 supportings respectively, and conveyer 31 can be rotated flexibly.The right-hand member axle of conveyer 31 is provided with power input wheel 37, and this power input wheel 37 can be gear, belt pulley or can import the device that kinetic force rotates screw propulsion conveyer 31.As can be known from Fig. 3, also being provided with one in the inner chamber 33 of wooden chaff baking oven 19 advances conveyer 31 left-hand screw arranged side by side to advance conveyer 38 with right-hand screw, its structure advances conveyer 31 identical with right-hand screw, both install side by side, and left-hand screw advances that the right-hand member of conveyer 38 is also corresponding to be provided with power input wheel or a device identical with power input wheel 37.In practical operation, the device of the power of input or power input should make the direction of rotation of two screw propulsion conveyers 31,38 opposite, like this could be effectively wooden chaff be transported to left end from the right-hand member of wooden chaff baking oven 19.The right-hand member of wood chaff baking oven 19 is provided with feeding mouth 30, and left end is provided with discharging opening 36.The wet wooden chaff that is transported to baking oven feed hopper 11 by conveying device enters into wooden chaff baking oven 19 from feeding mouth 30, and under the spiral rotation of two screw propulsion conveyers 31,38 advanced, wooden chaff was transported to discharging opening 36 from feeding mouth 30, and discharges.The wood chaff is in this course of conveying from right to left, experienced the baking of heat tunnel 39,29 heat energy, when the discharging opening 36 for doing wooden chaff, after discharging opening 36 is discharged, fall baking oven discharge bucket 18 and below conveyer belt 25 on, can be transported to blast pipe 3 and blow to burner hearth burning in the wooden chaff boiler 4.In Fig. 2, also broken section has been carried out in the wooden chaff baking oven 19 and the junction of deduster 20, shown that deduster 20 communicates with the inner chamber 33 of wooden chaff baking oven 19 by drawing dirt road 34, and, get rid of it by drawing 34 collections of dirt road and discharging water vapour and dust in the baking oven.In like manner, the structure of deduster 24 is identical with deduster 20 with operation principle, be installed in side by side wooden chaff baking oven 19 above.

Claims

1, a kind of environmental protection and energy saving wood chaff boiler dryer, it comprises the discharge flue of boiler, it is characterized in that also comprising:

The heat tunnel (29,39) that one end communicates with described boiler (4) discharge flue (5);

Be located at above the described heat tunnel (29,39), wherein be provided with the wooden chaff baking oven (19) that wooden chaff can be transported to the discharge end conveying device from feed end;

On described wooden chaff baking oven (19), be provided with the deduster (20,24) of collecting and discharging interior water vapour of baking oven (19) and dust.

2, environmental protection and energy saving wood chaff boiler dryer according to claim 1 is characterized in that:

Described heat tunnel comprises the inflection formula passage that heating input channel (39) and heating output channel (29) constitute, the input of heating input channel (39) communicates with boiler smoke outlet flue (5) by pipeline (8), the output of heating output channel (29) is discharged chimney (9) by pipeline (10) and flue dust and is communicated, and heating input channel (39) communicates by turn back mouthful (26) with heating output channel (29).

3, environmental protection and energy saving wood chaff boiler dryer according to claim 1 is characterized in that:

On the side (27) of holder chaff plate (28) between heat tunnel (29,39) and the wooden chaff baking oven (19), be provided with airflow hole (32).

4, environmental protection and energy saving wood chaff boiler dryer according to claim 1 is characterized in that:

Described conveying device is screw propulsion conveyer (31).