CN216281401U

CN216281401U - A fire burning furnace for biomass burning

Info

Publication number: CN216281401U
Application number: CN202122201191.6U
Authority: CN
Inventors: 李学淑
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-11
Filing date: 2021-09-11
Publication date: 2022-04-12
Anticipated expiration: 2031-09-11

Abstract

The utility model discloses a combustion furnace for biomass incineration, which comprises a frame, a furnace body, an ash cleaning port, an ignition port, an observation port, a fire outlet, an upper end cover, a feeding pipe, a spiral feeding machine, a feeding hopper, an air supply mechanism, an air cooling mechanism, rollers, a protective plate, a cooling sleeve, a connecting sleeve, a feeding port, a water outlet I, a water inlet I, a motor, a section fracture and a material inlet. According to the utility model, the circulating water layer is arranged between the outer side wall and the inner side wall of the furnace body, the circulating water layer is arranged on the upper end cover, the combustion furnace is cooled, the waste heat is recovered, and the utilization efficiency is improved, the fire outlet is provided with the air cooling mechanism, the service life of the fire outlet pipe can be prolonged, the air gathering effect is obvious, the flame jet distance is increased, and the heat efficiency is improved; the air supply mechanism can provide sufficient oxygen for the interior of the furnace body, so that the material is more fully combusted.

Description

A fire burning furnace for biomass burning

Technical Field

The utility model belongs to the technical field of combustion furnaces, and particularly relates to a combustion furnace for biomass incineration.

Background

At present, for the treatment of wood chip waste, waste straw, biomass particles and the like, a combustion mode of a combustion furnace is mostly adopted, so that fuel generates heat in the combustion process for other purposes, but the following problems occur in the use process of the traditional biomass combustion furnace:

1) in the working process of the time on the combustion furnace, the fire outlet is deformed under the environment of long-time high-temperature ignition, and the cooling effect and the fire outlet condition are influenced.

2) At the in-process that adopts spiral material loading machine material loading, the material loading process is at the uniform velocity, if the material piles up in the feeder hopper, then can be with the bottom material compaction, if the material compaction caking, perhaps mix into the bulk material and then can lead to the spiral blade in the spiral material loading machine to be blocked, cause the motor to damage.

3) When the inlet pipe is connected with the feed inlet, the connection is inconvenient, and in the actual welding process, deformation easily takes place for some spare parts under the thermal environment, causes the whole unable normal connection with the furnace body feed inlet of inlet pipe to at the material in-process that gets into the furnace body through the inlet pipe, not setting up the device and blockking that flame is excessive, flame is easy to be scurried along the inlet pipe and is caused danger under the long-time work.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art, and provides a combustion furnace for biomass incineration.A circulating water layer is arranged between the outer side wall and the inner side wall of a furnace body, a circulating water layer is arranged on an upper end cover to cool the combustion furnace, and the waste heat is recovered to improve the utilization efficiency; the air supply mechanism can provide sufficient oxygen for the interior of the furnace body, so that the material is more fully combusted.

In order to achieve the purpose, the utility model adopts the technical scheme that:

a combustion furnace for biomass incineration comprises a frame, a furnace body, an ash removing port, an ignition port, an observation port, a fire outlet, an upper end cover, a feeding pipe, a spiral feeding machine, a feeding hopper, an air supply mechanism, an air cooling mechanism, rollers, a protection plate, a cooling jacket, a connecting sleeve, a feeding port, a water outlet I, a water inlet I, a motor, a cross-section fracture and a material inlet, wherein the protection plate is arranged on the outer side of the frame, the rollers are arranged at the bottom of the frame, the air supply mechanism and the air cooling mechanism are arranged in the frame, the furnace body is arranged on one side of the frame, the ash removing port is arranged at the bottom of the furnace body, the ignition port is arranged above the ash removing port, the observation port is arranged on one side of the furnace body, the fire outlet is arranged on one side of the furnace body, the cooling jacket is sleeved on the outer side of the fire outlet, the connecting sleeve is arranged on one side of the furnace body, the upper end cover is provided with the water inlet I, the water outlet I is arranged above the upper end cover, and the top of the upper end cover is provided with the feeding port, the inlet pipe is connected to the feed inlet top, and inlet pipe other end fixed connection spiral material loading machine, the sprocket that the spiral material loading machine other end was established pass through the chain and be connected with the sprocket meshing that the motor output was established, and spiral material loading machine one side is equipped with the feeder hopper, and feeder hopper fixed mounting is in the frame, and the feeder hopper bottom is equipped with the material import, is equipped with the cross-section fracture on the helical blade of material import one side.

The furnace body includes delivery port II, water inlet II, drain, furnace body lateral wall, furnace body inside wall, baffle, furnace, grate, and furnace body inside wall inboard is equipped with furnace, the inside grate that is equipped with of furnace, the grate is located between deashing mouth and the ignition mouth, is equipped with the circulation water layer between furnace body inside wall and the furnace body lateral wall, furnace body lateral wall and delivery port II, water inlet II, the fixed intercommunication of drain, drain one side is equipped with the baffle, baffle fixed mounting is between furnace body inside wall and furnace body lateral wall.

The connecting sleeve is provided with a plurality of fixing bolts which are propped against the fire outlet to prevent the fire outlet from deforming and displacing.

The inlet pipe is connected with the feed inlet through a connector, and is fixed with the bolt through a flange, so that the inlet pipe is convenient to detach and install.

Air supply mechanism includes centrifugal fan I, bellows, the oxygen feed mouth, ventilation pipe IV, the oxygen supply pipe, ventilation pipe II, ventilation pipe I, the fixed intercommunication bellows of centrifugal fan I, bellows one side intercommunication oxygen feed mouth, the fixed intercommunication furnace body inside wall of oxygen feed mouth, locate the grate below, be equipped with a plurality of through-holes on the ventilation pipe IV, ventilation pipe IV fixed mounting is in the grate below and is linked together with bellows, the bellows both sides are equipped with the oxygen supply pipe, the oxygen supply pipe is the fixed intercommunication furnace body inside wall of zigzag shape and locates the grate top, the bellows top is equipped with ventilation pipe II and ventilation pipe I, II fixed intercommunication observation hatches of ventilation pipe, prevent flame overflow, the influence is observed, I fixed intercommunication spiral material loading machine of ventilation pipe.

The air cooling mechanism comprises a centrifugal fan II, a ventilation pipe III and an air cavity, the centrifugal fan II is arranged on one side of the air box, the centrifugal fan II is fixedly communicated with the ventilation pipe III, the ventilation pipe III is fixedly communicated with a cooling jacket, and the air cavity is formed between the cooling jacket and the fire outlet.

Preferably, the air outlet of the ventilation pipe I is arranged above the feeding pipe and communicated with the spiral feeding machine, so that falling fuel can quickly and uniformly enter the combustion furnace, and the danger caused by the fact that flame in the combustion furnace overflows through the feeding hole can be avoided.

Preferably, the upper end cover is provided with a circulating water layer, the circulating water layer is communicated with the water inlet I and the water outlet I, the top layer can be cooled and protected, and waste heat resources are recycled.

Preferably, the length of the cross-section fracture is 10-15 cm, and the stacked materials can be divided.

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

1) the connecting head is additionally arranged between the feeding pipe and the feeding port, the connecting head can be matched with the feeding pipe and the feeding port in the processing and manufacturing process, gaps caused by deformation of parts are avoided, the sealing performance is enhanced, flame overflow is avoided, the ventilating pipe I is arranged above the feeding pipe, blowing is carried out in the falling process of materials, the materials can be blown away, the combustion is more sufficient, and the situation that the flame blowback ignites materials in the spiral feeding machine to cause danger can be prevented;

2) one end of the spiral blade in the spiral feeding machine is provided with a fracture, and during the spiral feeding process, if a large material is accumulated or mixed at a material inlet, the compacted material or the large material can be divided through the fracture during the rotation process of the spiral blade, so that the situation that the spiral blade is clamped and the feeding cannot be carried out is avoided;

3) the fire outlet is fixed at a designated position by arranging a plurality of groups of fixing bolts on the connecting sleeve and enabling the tail ends of the bolts to prop against the fire outlet, so that the fire outlet is prevented from deforming under a continuous high-temperature environment;

4) be equipped with the circulation water layer between burning furnace lateral wall and the inside wall, the upper end cover is equipped with the circulation water layer, and the cooling water is whole to be cooled down the protection to burning furnace through the cooling water, and the cooling water can be used for other after reaching the uniform temperature after the heat transfer in addition.

Drawings

FIG. 1 is a schematic view of a combustion furnace for biomass incineration according to the present invention;

FIG. 2 is a schematic side view of a biomass-burning furnace according to the present invention;

FIG. 3 is a schematic view of the internal structure of a combustion furnace for biomass incineration according to the present invention;

FIG. 4 is a schematic top view of a biomass-burning furnace according to the present invention;

FIG. 5 is a sectional view of a furnace for burning biomass according to the present invention taken along the direction A-A;

FIG. 6 is a schematic view of a cross-sectional fracture structure of a combustion furnace for biomass incineration according to the present invention;

FIG. 7 is a schematic view of the internal structure of a furnace body of a combustion furnace for biomass incineration according to the present invention;

FIG. 8 is a schematic view of a partition structure of a biomass-burning furnace according to the present invention;

FIG. 9 is a schematic view of a grate structure of a biomass-burning furnace according to the present invention;

FIG. 10 is a schematic view of the bottom structure of a grate of a biomass-burning furnace according to the present invention;

in the figure: 10. a frame; 11. a furnace body; 12. cleaning the ash hole; 13. an ignition port; 14. a viewing port; 15. a fire outlet; 16. an upper end cover; 17. a feed pipe; 18. a spiral feeder; 19. a feed hopper; 20. an air supply mechanism; 21. an air cooling mechanism; 22. a connector; 101. a roller; 102. a guard plate; 111. a water outlet II; 112. a water inlet II; 113. a sewage draining outlet; 114. the outer side wall of the furnace body; 115. the inner side wall of the furnace body; 116. a partition plate; 117. a hearth; 118. a grate; 151. a cooling jacket; 152. connecting sleeves; 153. fixing the bolt; 161. a feed inlet; 162. a water outlet I; 163. a water inlet I; 181. a motor; 182. a fracture in the cross section; 183. a material inlet; 201. a centrifugal fan I; 202. an air box; 203. an oxygen supply port; 204. a ventilation pipe IV; 205. an oxygen supply tube; 206. a ventilation pipe II; 207. a ventilation pipe I; 211. a centrifugal fan II; 212. a ventilation pipe III; 213. and a wind cavity.

Detailed Description

For the convenience of understanding of those skilled in the art, the technical solution of the present invention will be further described in detail with reference to fig. 1 to 10.

A combustion furnace for biomass incineration comprises a frame 10, a furnace body 11, an ash removing port 12, an ignition port 13, an observation port 14, a fire outlet 15, an upper end cover 16, a feeding pipe 17, a spiral feeding machine 18, a feeding hopper 19, an air supply mechanism 20, an air cooling mechanism 21, rollers 101, a protective plate 102, a cooling sleeve 151, a connecting sleeve 152, a feeding port 161, a water outlet I162, a water inlet I163, a motor 181, a section fracture 182 and a material inlet 183, wherein the protective plate 102 is arranged on the outer side of the frame 10, the rollers 101 are arranged at the bottom of the frame 10, the air supply mechanism 20 and the air cooling mechanism 21 are arranged in the frame 10, the furnace body 11 is arranged on one side of the frame 10, the ash removing port 12 is arranged at the bottom of the furnace body 11, the ignition port 13 is arranged above the ash removing port 12, the observation port 14 is arranged on one side of the furnace body 11, the fire outlet 15 is arranged on one side of the furnace body, the cooling sleeve 151 is sleeved on the outer side of the cooling sleeve 151, the connecting sleeve 152 is arranged on one side of the cooling sleeve 151, furnace body 11 top is equipped with upper end cover 16, upper end cover 16 one side is equipped with water inlet I163, upper end cover 16 top is equipped with delivery port I162, upper end cover 16 top is equipped with feed inlet 161, feed pipe 17 is connected to feed inlet 161 top, feed pipe 17 other end fixed connection spiral material loading machine 18, the sprocket that the spiral material loading machine 18 other end was established passes through the chain and is connected with the sprocket meshing that the motor 181 output was established, spiral material loading machine 18 one side is equipped with feeder hopper 19, feeder hopper 19 fixed mounting is in frame 10, feeder hopper 19 bottom is equipped with material import 183, be equipped with cross-section fracture 182 on the spiral blade of material import 183 one side.

Furnace body 11 includes delivery port II 111, water inlet II 112, drain 113, furnace body lateral wall 114, furnace body inside wall 115, baffle 116, furnace 117, grate 118, furnace body inside wall 115 inboard is equipped with furnace 117, furnace 117 is inside to be equipped with grate 118, grate 118 is located between deashing mouth 12 and ignition port 13, be equipped with the circulation water layer between furnace body inside wall 115 and the furnace body lateral wall 114, furnace body lateral wall 114 and delivery port II 111, water inlet II 112, the fixed intercommunication of drain 113, drain 113 one side is equipped with baffle 116, baffle 116 fixed mounting is between furnace body inside wall 115 and furnace body lateral wall 114.

The connecting sleeve 152 is provided with a plurality of fixing bolts 153, and the fixing bolts 153 are propped against the fire outlet 15 to prevent the fire outlet 15 from deforming and displacing.

The inlet pipe 17 is connected with the feed inlet 161 through a connector 22, and is fixed with a bolt through a flange, so that the mounting and the dismounting are convenient.

The air supply mechanism comprises a centrifugal fan I201, an air box 202, an oxygen supply opening 203, a ventilation pipe IV 204, an oxygen supply pipe 205, a ventilation pipe II 206 and a ventilation pipe I207, wherein the centrifugal fan I201 is fixedly communicated with the air box 202, one side of the air box 202 is communicated with the oxygen supply opening 203, the oxygen supply opening 203 is fixedly communicated with the inner side wall 115 of the furnace body and is arranged below the fire grate 118, a plurality of through holes are formed in the ventilation pipe IV 204, the ventilation pipe IV 204 is fixedly arranged below the fire grate 118 and is communicated with the air box 202, the oxygen supply pipe 205 is arranged on two sides of the air box 202, the oxygen supply pipe 205 is fixedly communicated with the inner side wall 115 of the furnace body in a folded line shape and is arranged above the fire grate 118, the ventilation pipe II 206 and the ventilation pipe I207 are arranged above the air box 202, the II 206 is fixedly communicated with the observation opening 14 to prevent flame overflow and influence observation, and the ventilation pipe I207 is fixedly communicated with the spiral feeding machine 18.

The air cooling mechanism 21 comprises a centrifugal fan II 211, a ventilation pipe III 212 and an air cavity 213, the centrifugal fan II 211 is arranged on one side of the air box 202, the centrifugal fan II 211 is fixedly communicated with the ventilation pipe III 212, the ventilation pipe III 212 is fixedly communicated with a cooling jacket 151, and the air cavity 213 is formed between the cooling jacket 151 and the fire outlet 15.

The air outlet of the ventilation pipe I207 is arranged above the feeding pipe 17 and communicated with the spiral feeding machine 18, so that falling fuel can quickly and uniformly enter the combustion furnace, and the danger caused by the overflow of flame in the combustion furnace through the feeding hole 161 can be avoided.

The upper end cover 16 is provided with a circulating water layer, the circulating water layer is communicated with the water inlet I163 and the water outlet I162, the top layer can be cooled and protected, and waste heat resources are recycled.

The length of the section fracture 182 is 10-15 cm, and the accumulated materials can be divided.

A combustion furnace for biomass incineration works as follows: after a combustion furnace is placed at a proper position, after a kindling is placed through an ignition port 13, materials to be incinerated are poured into a feed hopper 19, a spiral feeder 18 transports the materials into a feed pipe 17 under the drive of a motor 181, a centrifugal fan I201 blows air into a wind box 202 for shunting, then the feed pipe 17 is blown through a vent pipe I207, the materials are dispersed in a furnace body 11 for sufficient combustion, the materials are prevented from being accumulated and insufficiently combusted, the wind box 202 is communicated with an oxygen supply port 203 to provide oxygen to the bottom of the combustion furnace, the oxygen supply pipe 205 is communicated with the lower part of the combustion furnace and is crossly distributed, vortex air flow can be formed in the furnace body 11, a vent pipe II 206 is communicated with an observation port 14 for blowing air to prevent flame overflow, a vent pipe IV 204 is communicated with a fire grate 118 for blowing, a centrifugal fan II blows clean air into a wind cavity 213 through a vent pipe III 212, cooling the fire outlet 15 and generating clean hot air resources; cooling water respectively enters the water inlet I163 and the water inlet II 112, flows out of the water outlet I162 and the water outlet II 111 for use after cooling and heat exchange, and after the combustion furnace burns for a period of time, the bottom ash cleaning port 12 of the furnace body 11 is opened to clean dust generated after burning at the bottom, the sewage outlet 113 is opened, and the circulating water layer is emptied and cleaned.

The foregoing is merely exemplary and illustrative of the present invention, and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the utility model as defined in the accompanying claims.

Claims

1. A combustion furnace for biomass incineration comprises a frame, a furnace body, an ash removing port, an ignition port, an observation port, a fire outlet, an upper end cover, a feeding pipe, a spiral feeding machine, a feeding hopper, an air supply mechanism, an air cooling mechanism, rollers, a protection plate, a cooling jacket, a connecting sleeve, a feeding port, a water outlet I, a water inlet I, a motor, a cross-section fracture and a material inlet, and is characterized in that the protection plate is arranged on the outer side of the frame, a plurality of rollers are arranged at the bottom of the frame, the air supply mechanism and the air cooling mechanism are arranged inside the frame, the furnace body is arranged on one side of the frame, the ash removing port is arranged at the bottom of the furnace body, the ignition port is arranged above the ash removing port, the observation port is arranged on one side of the furnace body, the fire outlet is arranged on one side of the furnace body, the cooling jacket is sleeved on the outer side of the fire outlet, the connecting sleeve is arranged on one side of the furnace body, the upper end cover is provided with the water inlet I, the water outlet I is arranged above the upper end cover, the top of the upper end cover is provided with the feeding port, the inlet pipe is connected to the feed inlet top, and inlet pipe other end fixed connection spiral material loading machine, the sprocket that the spiral material loading machine other end was established pass through the chain and be connected with the sprocket meshing that the motor output was established, and spiral material loading machine one side is equipped with the feeder hopper, and feeder hopper fixed mounting is in the frame, and the feeder hopper bottom is equipped with the material import, is equipped with the cross-section fracture on the helical blade of material import one side.

2. The combustion furnace as claimed in claim 1, wherein the furnace body comprises a water outlet II, a water inlet II, a sewage outlet, a furnace body outer side wall, a furnace body inner side wall, a partition plate, a furnace chamber and a fire grate, the furnace body inner side wall is provided with the furnace chamber, the fire grate is arranged inside the furnace chamber, the fire grate is arranged between an ash removal port and an ignition port, a circulating water layer is arranged between the furnace body inner side wall and the furnace body outer side wall, the furnace body outer side wall is fixedly communicated with the water outlet II, the water inlet II and the sewage outlet, the partition plate is arranged on one side of the sewage outlet, and the partition plate is fixedly arranged between the furnace body inner side wall and the furnace body outer side wall.

3. The biomass burning furnace as recited in claim 1, wherein said connecting sleeve is provided with a plurality of fixing bolts, and said fixing bolts are supported against said fire outlet.

4. The biomass burning furnace as recited in claim 1, wherein the feed pipe is connected with the feed inlet through a connector.

5. The combustion furnace as claimed in claim 1, wherein the air supply mechanism comprises a centrifugal fan I, an air box, an oxygen supply port, a ventilation pipe IV, an oxygen supply pipe, a ventilation pipe II and a ventilation pipe I, the centrifugal fan I is fixedly communicated with the air box, one side of the air box is communicated with the oxygen supply port, the oxygen supply port is fixedly communicated with the inner side wall of the furnace body and is arranged below the fire grate, the ventilation pipe IV is provided with a plurality of through holes, the ventilation pipe IV is fixedly arranged below the fire grate and is communicated with the air box, the oxygen supply pipe is arranged on two sides of the air box and is fixedly communicated with the inner side wall of the furnace body in a zigzag shape and is arranged above the fire grate, the ventilation pipe II and the ventilation pipe I are arranged above the air box, the ventilation pipe II is fixedly communicated with the observation port, and the ventilation pipe I is fixedly communicated with the spiral feeding machine.

6. The combustion furnace for burning the biomass as recited in claim 1, wherein the air cooling mechanism comprises a centrifugal fan II, a ventilation pipe III and an air cavity, the centrifugal fan II is arranged on one side of the air box, the centrifugal fan II is fixedly communicated with the ventilation pipe III, the ventilation pipe III is fixedly communicated with the cooling jacket, and the air cavity is formed between the cooling jacket and the fire outlet.

7. The biomass burning furnace as recited in claim 5, wherein said vent tube I outlet is disposed above the feed tube and is in communication with the screw feeder.

8. The combustion furnace for burning the biomass as claimed in claim 1, wherein the upper end cover is provided with a circulating water layer, and the circulating water layer is communicated with the water inlet I and the water outlet I.

9. A furnace as claimed in claim 1 in which the cross-sectional cut is between 10 and 15 cm in length.