CN113958961B

CN113958961B - Multi-stage combustion furnace using furfural residues as fuel

Info

Publication number: CN113958961B
Application number: CN202111267066.3A
Authority: CN
Inventors: 王彪; 王志强; 陈一魁; 周博; 刘剑飞; 张经纬; 吴烈银
Original assignee: Beijing Aoke Ruifeng New Energy Co ltd
Current assignee: Beijing Aoke Ruifeng New Energy Co ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-07-12
Anticipated expiration: 2041-10-28
Also published as: CN113958961A

Abstract

A multi-stage combustion furnace using furfural residues as fuel belongs to the technical field of furfural residue combustion, and aims to solve the problems that insufficient combustion exists in a single-layer combustion mode, the combustion is insufficient and equipment is unstable due to the fact that the furfural residues are unevenly distributed on the surface of a fire bed, and the waste of resources is caused by the fact that evaporation equipment needs to be arranged to dry slag materials before combustion; according to the invention, the feeding mechanism comprises a feeding assembly arranged on the outer side of the furnace body and a linkage assembly arranged on one side of the feeding assembly, the outer edge of the rotating disc is provided with a tooth socket, the bottom of the second linkage shaft is fixedly connected with a limiting rod, and the linkage assembly further comprises a limiting plate arranged on the second screen.

Description

Multi-stage combustion furnace using furfural residues as fuel

Technical Field

The invention relates to the technical field of furfural residues, in particular to a multi-stage combustion furnace using furfural residues as fuel.

Background

The furfural residues are waste residues generated in the process of extracting furfural, are low in sodium and magnesium content, contain a small amount of chlorine, aluminum and iron, are high in silicon, sulfur, potassium and calcium content and are influenced by a pretreatment process, the water content in the furfural residues is very high (55.2%), a small amount of acid liquor is remained, and the stacking of a large amount of furfural residues can pollute water and soil, occupy the site and cause atmospheric pollution due to the fact that stacking is carried out for too long time, so that the development and development of a novel environment-friendly boiler for treating waste furfural residues have great positive significance for effectively utilizing waste resources, improving the ecological environment and improving economic benefits and social benefits.

Because the furfural residue contains a large amount of water, the fluidized bed applied to the combustion of the furfural residue at present is not uniform in the particle size of the furfural residue in the use process, the combustion is insufficient in a single-layer combustion mode, the combustion is insufficient and the equipment is unstable due to the fact that the furfural residue is not uniformly distributed on the surface of a fire bed in the combustion process, evaporation equipment needs to be arranged before the combustion to dry the slag, drying equipment needs to be additionally arranged in the process, and the waste of resources is caused.

To solve the above problems. Therefore, a multi-stage combustion furnace using furfural residues as fuel is provided.

Disclosure of Invention

The invention aims to provide a multi-stage combustion furnace using furfural residues as fuel, which solves the problems that in the background art, due to the fact that the particle size of the furfural residues is not uniform, the combustion is insufficient in a single-layer combustion mode, the combustion is insufficient and the equipment is unstable due to the fact that the furfural residues are not uniformly distributed on the surface of a fire bed in the combustion process, evaporation equipment is required to be arranged to dry the slag before the combustion, and extra drying equipment is required to be arranged in the process, so that the waste of resources is caused.

In order to achieve the purpose, the invention provides the following technical scheme: a multi-stage combustion furnace using furfural residues as fuel comprises a combustion mechanism, a feeding mechanism arranged on one side of the combustion mechanism, and an evaporation mechanism arranged on the feeding mechanism, wherein the combustion mechanism comprises a furnace body and a double-layer combustion assembly arranged in the furnace body, and further comprises an auxiliary combustion assembly arranged in the furnace body and below the double-layer combustion assembly, the double-layer combustion assembly comprises a fixed ring fixedly connected on the inner wall of the furnace body and a movable ring slidably connected on the inner wall of the furnace body, a first fixed ring is fixedly connected in the fixed ring, a first screen is fixedly connected on the inner side of the first fixed ring, a rotating ring is rotatably connected in the movable ring, a second screen is fixedly connected on the inner side of the rotating ring, the auxiliary combustion assembly comprises a third air inlet pipe penetrating through the inside and the outside of the furnace body, round pipes are uniformly distributed on one end of the third air inlet pipe in the furnace body, and gas pipes are uniformly distributed on the round pipes, the auxiliary combustion assembly also comprises a convex plate fixedly connected to the gas pipe;

the feeding mechanism comprises a feeding assembly arranged on the outer side of the furnace body and a linkage assembly arranged on one side of the feeding assembly, the linkage assembly is positioned in the furnace body and comprises a first linkage shaft, one end of the first linkage shaft is fixedly connected with a rotating disc, a tooth groove is formed in the outer edge of the rotating disc, an end face gear is connected onto the tooth groove in a meshed mode, a second linkage shaft is fixedly connected to the bottom of the end face gear, a limiting rod is fixedly connected to the bottom of the second linkage shaft, and the linkage assembly further comprises a limiting plate arranged on the second screen;

the evaporation mechanism comprises a drying assembly arranged below the feeding assembly, an exhaust assembly arranged above the feeding assembly and a bag-type dust collector arranged on the exhaust assembly.

Furtherly, the bottom fixedly connected with deposition dish of furnace body is provided with the air inlet on the deposition dish, the bottom fixedly connected with ash discharge mouth of deposition dish, the inner wall of movable ring is upper and lower with the corresponding position difference fixedly connected with second spacing ring of rotating ring and first spacing ring, be provided with the second intake pipe that runs through with inside on the outer wall of furnace body, the top of furnace body is provided with the blast pipe, and the other end of blast pipe extends to the inside of sack cleaner, the aperture of second screen cloth is greater than the aperture of first screen cloth.

Further, the centre of bellying is provided with the inlet port, the first intake pipe of outside fixedly connected with of air inlet, and the one end of first intake pipe runs through the ash discharge mouth and extends to inlet port department, the other end fixedly connected with air-blower of first intake pipe, supplementary combustion assembly is still including setting up the flow distribution plate in the inlet port top, fixedly connected with head rod on the outer wall of flow distribution plate, and the other end fixed connection of head rod is on the inner wall of inlet port, evenly distributed has the hole of predetermineeing corresponding with the gas pipe on the bellying.

Further, the material loading subassembly includes the inlet pipe of fixed connection on the furnace body, and one side of inlet pipe runs through the inside of furnace body, the equal fixedly connected with closing plate in both sides of inlet pipe, the material loading subassembly still includes the motor of fixed connection on the closing plate in the material loading subassembly outside, and fixedly connected with runs through the inside output shaft of inlet pipe on the motor, fixedly connected with spiral scraper blade on the output shaft, one side that the top of inlet pipe is close to the motor is provided with the feeder hopper, one side that the inlet pipe bottom is located the furnace body inside is provided with out the hopper.

Furthermore, the other end of the first linkage shaft penetrates through the sealing plate and is fixedly connected with the output shaft, a first rotating shaft is fixedly connected to one side of the rotating disc, a movable rod is rotatably connected to the first rotating shaft, and a second rotating shaft is rotatably connected to the other end of the movable rod.

Furthermore, the linkage assembly further comprises a linkage rod fixedly connected to the second rotating shaft, the second rotating shaft is located in the middle of the linkage rod, fixed rods are fixedly connected to two ends of the linkage rod, and the other end of each fixed rod is fixedly connected with the top of the movable ring.

Further, the linkage assembly further comprises a second connecting rod fixedly connected to a sealing plate located inside the furnace body, the other end of the second connecting rod is fixedly connected with a rotating ring, the second linkage shaft is rotatably connected to the inside of the rotating ring, a limiting hole penetrating through the limiting plate is formed in the middle of the limiting plate, and the limiting rod is connected to the inside of the limiting hole in a sliding mode.

Further, the stoving subassembly includes the water tank of fixed connection in the inlet pipe bottom, and the inside splendid attire of water tank has water, and the inside of water tank is provided with the water pump, and the one end fixedly connected with inlet tube of water pump, and the inlet tube other end runs through water tank and furnace body and be connected with the heat exchange tube, and the heat exchange tube is located the inside edge of furnace body, and the shape of heat exchange tube is the semicircular arc who encircles from top to bottom.

Furthermore, the other end of the heat exchange tube is fixedly connected with a water outlet tube, the other end of the water outlet tube penetrates through the bottoms of the furnace body and the water tank and extends into the water tank, and the tail ends of the water outlet tube and the water inlet tube, which are positioned in the water tank, are far away from each other.

Further, the exhaust subassembly is including setting up the fluting at the inlet pipe top, and the exhaust subassembly still includes the box of fixed connection at the inlet pipe top, and the box link up with the inlet pipe is inside mutually through the fluting, and one side that the box is close to the furnace body is provided with the intercommunicating pore, is linked together through the intercommunicating pore between box and the furnace body, and the top of box is provided with the apron, and one side that the apron is close to the feeder hopper is provided with communicating pipe, and the other end is connected with the sack cleaner communicating pipe.

Compared with the prior art, the invention has the beneficial effects that:

1. the utility model provides an use furfural sediment as multistage combustion furnace of fuel, furfural sediment passes through filtering on the second screen cloth, the large granule stays on the second screen cloth, the tiny particle stays on first screen cloth, through letting in coal gas in third intake pipe department, coal gas passes through the pipe and evenly escapes from the gas pipe and burns, in the in-process of burning, the air-blower blows in air from the inlet port through first intake pipe, the air mixes the gas combustion through the reposition of redundant personnel of flow distribution board, the burning is even, coal gas ignites and burns the furfural sediment on first screen cloth and the second screen cloth, ash after the burning falls in the bellying and follow along the edge of bellying and follow the row ash mouth of deposition dish below and discharge, the mode of double-deck burning burns more fully, and admit air, arrange the ash and not disturbed each other between the burning, realize the multistage burning of furfural sediment fuel.

2. A multi-stage combustion furnace using furfural residues as fuel is characterized in that furfural residues are added at a feed hopper by starting a motor in the combustion process, the furfural residues are uniformly conveyed into the interior of a furnace body under the rotation of an output shaft and a spiral scraper, the output shaft drives a first linkage shaft to rotate in the conveying process, a movable rod is driven by a rotating disc and the first linkage shaft to move up and down when the first linkage shaft rotates, the movable rod drives a movable ring to shake and shake materials up and down through a linkage rod and a fixed rod, an end face gear is driven by a tooth socket to rotate when the rotating disc rotates, the end face gear drives a second screen to rotate in the movable ring through a second linkage shaft, a limiting rod and a limiting plate, the furfural residues falling from a discharge hopper can be uniformly distributed by matching with the vertical shaking of the movable ring, and small-particle material residues can uniformly pass through the second screen and fall into the first screen, so that the combustion is sufficient and the stable combustion of the equipment is ensured.

3. The utility model provides an use furfural sediment as multistage combustion furnace of fuel, the furfural sediment can produce the heat at the in-process of burning, the heat heats the inside water of heat exchange tube, can circulate the inside water of water tank through starting the water pump, can dry the inside furfural sediment of inlet pipe after the hot water circulation, the vapor that the stoving produced enters into inside the box through the fluting, carry out the secondary ventilation in second intake pipe department, some wind carries the inside vapor of box into the sack cleaner through the intercommunicating pore and removes dust the back and discharge, at this in-process, after equipment stops burning, hot water can be dried the inside clout of inlet pipe at refrigerated in-process, when next use, the water need not dry at the inside furfural sediment of the in-process inlet pipe that heats, can realize linking, the resource has been saved.

Drawings

FIG. 1 is a schematic view of the overall structure of a multi-stage combustion furnace using furfural residues as fuel according to the present invention;

FIG. 2 is an exploded view of the overall structure of a multi-stage combustion furnace using furfural residues as fuel according to the present invention;

FIG. 3 is an exploded view of the furnace body structure of a multi-stage combustion furnace using furfural residues as fuel according to the present invention;

FIG. 4 is an exploded view of a dual-layer combustion module of a multi-stage combustion furnace using furfural residue as fuel according to the present invention;

FIG. 5 is an exploded view of a raised plate structure of a multi-stage combustion furnace using furfural residue as a fuel according to the present invention;

FIG. 6 is an exploded view of the structure of the charging assembly of the multi-stage combustion furnace using furfural residue as fuel according to the present invention;

FIG. 7 is a schematic view of the linkage assembly of the multi-stage combustion furnace using furfural residue as fuel according to the present invention;

FIG. 8 is a schematic view of the structure of an evaporation mechanism of a multi-stage combustion furnace using furfural residue as fuel according to the present invention;

FIG. 9 is an exploded view of the structure of the evaporation mechanism of the multi-stage combustion furnace using furfural residue as fuel according to the present invention.

In the figure: 1. a combustion mechanism; 11. a furnace body; 111. an ash accumulation plate; 1111. an air inlet; 1112. an ash discharge port; 1113. a first intake pipe; 1114. a blower; 112. a second intake pipe; 113. an exhaust pipe; 12. a dual-layer combustion assembly; 121. a stationary ring; 1211. a first retaining ring; 1212. a first screen; 122. a movable ring; 1221. a first limit ring; 1222. a second stop collar; 1223. a rotating ring; 1224. a second screen; 13. an auxiliary combustion assembly; 131. a raised plate; 132. an air inlet; 133. a flow distribution plate; 1331. a first connecting rod; 134. a third intake pipe; 1341. a circular tube; 1342. a gas pipe; 1343. presetting holes; 2. a feeding mechanism; 21. a feeding assembly; 211. a feeding pipe; 212. a sealing plate; 213. a motor; 214. an output shaft; 215. a spiral scraper; 216. a feed hopper; 217. a discharge hopper; 22. a linkage assembly; 221. a first linkage shaft; 222. rotating the disc; 2221. a tooth socket; 2222. a first rotating shaft; 223. a movable rod; 2231. a second rotating shaft; 224. a linkage rod; 225. fixing the rod; 226. a second connecting rod; 227. rotating the ring; 228. a face gear; 2281. a second coupling shaft; 2282. a limiting rod; 229. a limiting plate; 2291. a limiting hole; 3. an evaporation mechanism; 31. a drying assembly; 311. a water tank; 312. a water pump; 313. a water inlet pipe; 314. a heat exchange pipe; 315. a water outlet pipe; 32. an exhaust assembly; 321. grooving; 322. a box body; 3221. a cover plate; 3222. a communicating pipe; 323. a communicating hole; 33. a bag-type dust collector.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

In order to solve the technical problem that the combustion is insufficient due to the uneven particle size of the furfural residues in the use process of the fluidized bed in a single-layer combustion mode, as shown in figures 1 to 5, the following preferred technical scheme is provided:

the utility model provides an use multistage combustion furnace of furfural sediment as fuel, includes combustion mechanism 1 and sets up feed mechanism 2 in combustion mechanism 1 one side, still includes the evaporation mechanism 3 that sets up on feed mechanism 2, its characterized in that: combustion mechanism 1 includes furnace body 11 and sets up the double-deck combustion assembly 12 inside furnace body 11, still include the inside supplementary combustion assembly 13 that is located double-deck combustion assembly 12 below of furnace body 11, double-deck combustion assembly 12 includes retainer plate 121 and the movable ring 122 of sliding connection on the 11 inner walls of furnace body of fixed connection on the 11 inner walls of furnace body, the first solid fixed ring 1211 of inside fixedly connected with of retainer plate 121, the first screen cloth 1212 of inboard fixedly connected with of first solid fixed ring 1211, the inside rotation of movable ring 122 is connected with swivel ring 1223, the inboard fixedly connected with second screen cloth 1224 of swivel 1223, supplementary combustion assembly 13 is including running through the inside and outside third intake pipe 134 of furnace body 11, third intake pipe 134 is located one of furnace body 11 inside and serves evenly distributed and has pipe 1341, evenly distributed has gas pipe 1342 on the pipe 1341, supplementary combustion assembly 13 still includes the protruding board 131 of fixed connection on gas pipe 1342.

The bottom of the furnace body 11 is fixedly connected with an ash deposition disc 111, the ash deposition disc 111 is provided with an air inlet 1111, the bottom of the ash deposition disc 111 is fixedly connected with an ash discharge port 1112, the upper and lower positions of the inner wall of the movable ring 122 corresponding to the rotating ring 1223 are respectively and fixedly connected with a second limit ring 1222 and a first limit ring 1221, the outer wall of the furnace body 11 is provided with a second air inlet pipe 112 penetrating the inside, the top of the furnace body 11 is provided with an exhaust pipe 113, the other end of the exhaust pipe 113 extends to the inside of the bag-type dust collector 33, the middle of the convex plate 131 is provided with an air inlet 132, the outer side of the air inlet 1111 is fixedly connected with a first air inlet pipe 1113, one end of the first air inlet pipe 1113 penetrates the ash discharge port 1112 and extends to the air inlet 132, the other end of the first air inlet pipe 1113 is fixedly connected with an air blower 1114, the auxiliary combustion assembly 13 further comprises a flow distribution plate 133 arranged above the air inlet 132, the outer wall of the flow distribution plate 133 is fixedly connected with a first connecting rod 1331, and the other end of the first connecting rod 1331 is fixedly connected to the inner wall of the air inlet 132, the preset holes 1343 corresponding to the gas pipe 1342 are uniformly distributed on the convex plate 131, and the aperture of the second screen 1224 is larger than that of the first screen 1212.

Specifically, the furfural residues are filtered on the second screen 1224, large particles are left on the second screen 1224, small particles are left on the first screen 1212, the coal gas is introduced at the third air inlet pipe 134 and uniformly escapes from the gas pipe 1342 through the circular pipe 1341 to be combusted, during combustion, the air is blown in from the air inlet hole 132 by the air blower 1114 through the first air inlet pipe 1113, the air is combusted through the split mixed coal gas of the splitter plate 133, the combustion is uniform, the coal gas ignites and combusts the furfural residues on the first screen 1212 and the second screen 1224, and the combusted ash falls on the projection plate 131 and is discharged from the ash discharge port 1112 below the ash collecting tray 111 along the edge of the projection plate 131.

In order to solve the technical problems that the furfural residues are unevenly distributed on the surface of a fire bed to cause insufficient combustion and unstable equipment operation, the following preferred technical scheme is provided as shown in figures 6-7:

feed mechanism 2 is including setting up the material loading subassembly 21 in the furnace body 11 outside, still including setting up the linkage subassembly 22 in material loading subassembly 21 one side, and linkage subassembly 22 is located the inside of furnace body 11, linkage subassembly 22 includes first universal driving shaft 221, the one end fixedly connected with rolling disc 222 of first universal driving shaft 221, the outer fringe of rolling disc 222 is provided with tooth's socket 2221, the meshing is connected with face gear 228 on the tooth's socket 2221, the bottom fixedly connected with second universal driving shaft 2281 of face gear 228, the bottom fixedly connected with gag lever post 2282 of second universal driving shaft 2281, linkage subassembly 22 still includes the limiting plate 229 that sets up on second screen cloth 1224.

The feeding assembly 21 comprises a feeding pipe 211 fixedly connected to the furnace body 11, one side of the feeding pipe 211 penetrates through the furnace body 11, sealing plates 212 are fixedly connected to both sides of the feeding pipe 211, the feeding assembly 21 further comprises a motor 213 fixedly connected to the sealing plates 212 on the outer side of the feeding assembly 21, an output shaft 214 penetrating through the feeding pipe 211 is fixedly connected to the motor 213, a spiral scraper 215 is fixedly connected to the output shaft 214, a feeding hopper 216 is arranged on one side of the top of the feeding pipe 211 close to the motor 213, a discharging hopper 217 is arranged on one side of the bottom of the feeding pipe 211 located inside the furnace body 11, the other end of a first linkage shaft 221 penetrates through the sealing plates 212 and is fixedly connected to the output shaft 214, a first rotating shaft 2222 is fixedly connected to one side of the rotating disc 222, a movable rod 223 is rotatably connected to the first rotating shaft 2222, a second rotating shaft 2231 is rotatably connected to the other end of the movable rod 223, the linkage assembly 22 further comprises a linkage rod 224 fixedly connected to the second rotating shaft 2231, and second pivot 2231 is located the centre of gangbar 224, the equal fixedly connected with dead lever 225 in both ends of gangbar 224, the other end of dead lever 225 and the top fixed connection of movable ring 122, linkage assembly 22 still includes second connecting rod 226 of fixed connection on the inside closing plate 212 that is located furnace body 11, the other end fixedly connected with swivel 227 of second connecting rod 226, and second linkage 2281 rotates the inside of connecting at swivel 227, the centre of limiting plate 229 is provided with the spacing hole 2291 that runs through from top to bottom, and sliding connection is in the inside of spacing hole 2291 about the spacing rod 2282.

Specifically, in the combustion process, the motor 213 is started, furfural slag is added at the feed hopper 216, the furfural slag is uniformly conveyed into the furnace body 11 under the rotation of the output shaft 214 and the spiral scraper 215, the output shaft 214 drives the first linkage shaft 221 to rotate in the conveying process, the first linkage shaft 221 drives the movable rod 223 to move up and down through the rotating disc 222 and the first rotation shaft 2222 when rotating, the movable rod 223 drives the movable ring 122 to shake and shake materials up and down through the linkage rod 224 and the fixed rod 225, the rotating disc 222 drives the face gear 228 to rotate through the tooth slot 2221 when rotating, the face gear 228 drives the second screen 1224 to rotate inside the movable ring 122 through the second linkage shaft 2281, the limit rod 2282 and the limit plate 229 when rotating, the furfural slag falling from the discharge hopper 217 can be uniformly distributed by matching with the up and down shaking of the movable ring 122, and the 1224-shaped material slag can uniformly pass through the second screen 1212 and fall into the first screen 1212, realizing the multi-stage combustion of the furfural residue fuel.

In order to solve the technical problem that evaporation equipment needs to be arranged to dry slag before combustion, extra drying equipment needs to be arranged in the process, and resource waste is caused, as shown in fig. 8-9, the following preferred technical scheme is provided:

the evaporation mechanism 3 comprises a drying component 31 arranged below the feeding component 21, an exhaust component 32 arranged above the feeding component 21 and a bag-type dust collector 33 arranged on the exhaust component 32, wherein the drying component 31 comprises a water tank 311 fixedly connected to the bottom of the feeding pipe 211, water is contained in the water tank 311, a water pump 312 is arranged in the water tank 311, one end of the water pump 312 is fixedly connected with a water inlet pipe 313, and the other end of the water inlet pipe 313 penetrates through the water tank 311 and the furnace body 11 and is connected with a heat exchange pipe 314, the heat exchange pipe 314 is positioned at the inner edge of the furnace body 11, the heat exchange tube 314 is shaped like a semicircular arc surrounding up and down, the other end of the heat exchange tube 314 is fixedly connected with a water outlet tube 315, the other end of the water outlet tube 315 penetrates through the bottom of the furnace body 11 and the water tank 311 and extends to the inside of the water tank 311, and the ends of the outlet pipe 315 and the inlet pipe 313 located inside the water tank 311 are distant from each other.

The exhaust assembly 32 comprises a slot 321 formed in the top of the feeding pipe 211, the exhaust assembly 32 further comprises a box 322 fixedly connected to the top of the feeding pipe 211, the box 322 is communicated with the inside of the feeding pipe 211 through the slot 321, a communication hole 323 is formed in one side, close to the furnace body 11, of the box 322, the box 322 is communicated with the furnace body 11 through the communication hole 323, a cover plate 3221 is arranged on the top of the box 322, a communication pipe 3222 is arranged on one side, close to the feeding hopper 216, of the cover plate 3221, and the other end of the communication pipe 3222 is connected with the bag-type dust collector 33.

Specifically, furfural residue can generate heat in the combustion process, the heat heats water inside the heat exchange tube 314, water inside the water tank 311 can be circulated by starting the water pump 312, the furfural residue inside the feed tube 211 can be dried after hot water circulation, steam generated by drying enters the box body 322 through the groove 321, secondary ventilation is performed at the second air inlet tube 112, part of air is conveyed into the bag-type dust collector 33 through the communicating hole 323 to be discharged after dust removal, in the process, after the equipment stops combustion, hot water can dry residual materials inside the feed tube 211 in the cooling process, and when the equipment is used next time, the furfural residue inside the feed tube 211 does not need to be dried in the heating process.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. The utility model provides an use multistage combustion furnace of furfural sediment as fuel, includes combustion mechanism (1) and sets up feed mechanism (2) in combustion mechanism (1) one side, still includes evaporation mechanism (3) of setting on feed mechanism (2), its characterized in that: the combustion mechanism (1) comprises a furnace body (11) and a double-layer combustion assembly (12) arranged inside the furnace body (11), and further comprises an auxiliary combustion assembly (13) arranged inside the furnace body (11) and below the double-layer combustion assembly (12), wherein the double-layer combustion assembly (12) comprises a fixed ring (121) fixedly connected to the inner wall of the furnace body (11) and a movable ring (122) slidably connected to the inner wall of the furnace body (11), a first fixed ring (1211) is fixedly connected inside the fixed ring (121), a first screen mesh (1212) is fixedly connected to the inner side of the first fixed ring (1211), a rotating ring (1223) is rotatably connected inside the movable ring (122), a second screen mesh (1224) is fixedly connected to the inner side of the rotating ring (1223), the auxiliary combustion assembly (13) comprises a third air inlet pipe (134) penetrating through the inside and outside of the furnace body (11), and round pipes (1341) are uniformly distributed at one end of the third air inlet pipe (134) positioned inside the furnace body (11), the circular tube (1341) is uniformly distributed with gas tubes (1342), and the auxiliary combustion assembly (13) also comprises a convex plate (131) fixedly connected to the gas tubes (1342);

the feeding mechanism (2) comprises a feeding assembly (21) arranged on the outer side of the furnace body (11), and further comprises a linkage assembly (22) arranged on one side of the feeding assembly (21), the linkage assembly (22) is located inside the furnace body (11), the linkage assembly (22) comprises a first linkage shaft (221), one end of the first linkage shaft (221) is fixedly connected with a rotating disc (222), the outer edge of the rotating disc (222) is provided with a tooth groove (2221), the tooth groove (2221) is connected with an end face gear (228) in a meshing manner, the bottom of the end face gear (228) is fixedly connected with a second linkage shaft (2281), the bottom of the second linkage shaft (2281) is fixedly connected with a limiting rod (2282), and the linkage assembly (22) further comprises a limiting plate (229) arranged on a second screen mesh (1224);

the evaporation mechanism (3) comprises a drying assembly (31) arranged below the feeding assembly (21), an exhaust assembly (32) arranged above the feeding assembly (21) and a bag-type dust collector (33) arranged on the exhaust assembly (32).

2. The multi-stage combustion furnace for furfural residues as fuel according to claim 1, characterized in that: the bottom fixedly connected with deposition dish (111) of furnace body (11), be provided with air inlet (1111) on deposition dish (111), bottom fixedly connected with ash discharge opening (1112) of deposition dish (111), the inner wall of movable ring (122) is corresponding position difference fixedly connected with second spacing ring (1222) and first spacing ring (1221) with rotating ring (1223) from top to bottom, be provided with second intake pipe (112) that run through with inside on the outer wall of furnace body (11), the top of furnace body (11) is provided with blast pipe (113), and the other end of blast pipe (113) extends to the inside of sack cleaner (33).

3. The multi-stage combustion furnace for furfural residues as fuel as set forth in claim 2, wherein: the centre of protruding board (131) is provided with air inlet hole (132), the outside fixedly connected with first intake pipe (1113) of air inlet (1111), and the one end of first intake pipe (1113) runs through ash discharge mouth (1112) and extends to air inlet hole (132) department, the other end fixedly connected with air-blower (1114) of first intake pipe (1113), supplementary combustion assembly (13) are still including flow distribution plate (133) of setting in air inlet hole (132) top, fixedly connected with head rod (1331) on the outer wall of flow distribution plate (133), and the other end fixed connection of head rod (1331) is on the inner wall of air inlet hole (132), evenly distributed has preset hole (1343) corresponding with gas pipe (1342) on protruding board (131), the aperture of second screen cloth (1224) is greater than the aperture of first screen cloth (1212).

4. The multi-stage combustion furnace for furfural residues as fuel according to claim 1, characterized in that: feeding subassembly (21) includes inlet pipe (211) of fixed connection on furnace body (11), and the inside of furnace body (11) is run through to one side of inlet pipe (211), the equal fixedly connected with closing plate (212) in both sides of inlet pipe (211), feeding subassembly (21) still includes motor (213) of fixed connection on feeding subassembly (21) outside closing plate (212), and motor (213) are gone up fixedly connected with and run through inside output shaft (214) of inlet pipe (211), fixedly connected with spiral scraper blade (215) are gone up in output shaft (214), one side that the top of inlet pipe (211) is close to motor (213) is provided with feeder hopper (216), one side that inlet pipe (211) bottom is located furnace body (11) inside is provided with out hopper (217).

5. The multi-stage combustion furnace using furfural slag as a fuel as set forth in claim 4, wherein: the other end of the first linkage shaft (221) penetrates through the sealing plate (212) and is fixedly connected with the output shaft (214), one side of the rotating disc (222) is fixedly connected with a first rotating shaft (2222), the first rotating shaft (2222) is rotatably connected with a movable rod (223), and the other end of the movable rod (223) is rotatably connected with a second rotating shaft (2231).

6. The multi-stage combustion furnace using furfural slag as a fuel as set forth in claim 5, wherein: the linkage assembly (22) further comprises a linkage rod (224) fixedly connected to the second rotating shaft (2231), the second rotating shaft (2231) is located in the middle of the linkage rod (224), fixing rods (225) are fixedly connected to two ends of the linkage rod (224), and the other ends of the fixing rods (225) are fixedly connected to the tops of the movable rings (122).

7. The multi-stage combustion furnace for furfural residues as fuel according to claim 1, characterized in that: linkage subassembly (22) still includes second connecting rod (226) of fixed connection on the inside closing plate (212) that is located furnace body (11), the other end fixedly connected with swivel (227) of second connecting rod (226), and second linkage axle (2281) rotate to be connected in the inside of swivel (227), the centre of limiting plate (229) is provided with spacing hole (2291) that runs through from top to bottom, and sliding connection is in the inside of spacing hole (2291) about gag lever post (2282).

8. The multi-stage combustion furnace for furfural residues as fuel according to claim 1, characterized in that: drying assembly (31) is including water tank (311) of fixed connection in inlet pipe (211) bottom, the inside splendid attire of water tank (311) is equipped with water pump (312), the one end fixedly connected with inlet tube (313) of water pump (312), and inlet tube (313) other end runs through water tank (311) and furnace body (11) and is connected with heat exchange tube (314), heat exchange tube (314) are located furnace body (11) inside edge, and the shape of heat exchange tube (314) is the semicircle arc that encircles from top to bottom.

9. The multi-stage furnace for burning furfural residues as set forth in claim 8, wherein: the other end of the heat exchange tube (314) is fixedly connected with a water outlet tube (315), the other end of the water outlet tube (315) penetrates through the bottoms of the furnace body (11) and the water tank (311) and extends to the inside of the water tank (311), and the tail ends of the water outlet tube (315) and the water inlet tube (313) which are positioned in the water tank (311) are far away from each other.

10. The multi-stage combustion furnace for furfural residues as fuel according to claim 1, characterized in that: exhaust subassembly (32) are including setting up fluting (321) at inlet pipe (211) top, exhaust subassembly (32) still include box (322) of fixed connection at inlet pipe (211) top, and box (322) link up with inlet pipe (211) inside mutually through fluting (321), one side that box (322) are close to furnace body (11) is provided with intercommunicating pore (323), be linked together through intercommunicating pore (323) between box (322) and furnace body (11), the top of box (322) is provided with apron (3221), one side that apron (3221) are close to feeder hopper (216) is provided with communicating pipe (3222), and the communicating pipe (3222) other end is connected with sack cleaner (33).