CN213334344U

CN213334344U - Integrated biomass burner

Info

Publication number: CN213334344U
Application number: CN202022160692.XU
Authority: CN
Inventors: 陈彦峰; 郭小宝; 赵昕; 谢方良; 贺伟
Original assignee: Henan Haoli Agriculture Technology Co ltd
Current assignee: Henan Haoli Intelligent Technology Co.,Ltd.
Priority date: 2020-09-25
Filing date: 2020-09-25
Publication date: 2021-06-01
Anticipated expiration: 2030-09-25

Abstract

The utility model relates to an integrated biomass burner, which comprises a heat exchanger, a combustion furnace, a screw feeding burner and a blanking hopper; the heat exchanger is arranged on the upper end surface of the combustion furnace and is communicated with the inner cavity of the combustion furnace; the screw feeding combustion machine is communicated with the discharging hopper and the combustion furnace; the heat exchanger comprises a left fire box, a right fire box, a heat exchange tube and a smoke damper; the left end and the right end of the heat exchange tube are respectively communicated with the inner cavities of the left fire box and the right fire box; the outer side surface of the left fire box is provided with a smoke impact and a left ash removal door, the outer side surface of the right fire box is provided with a right ash removal door, and the right fire box is communicated with the inner cavity of the combustion furnace; the heat exchange tube is provided with fins; the utility model provides a pair of integral type biomass burning machine, its heat exchanger are equipped with many heat exchange tubes, all are equipped with the fin on the every heat exchange tube, and the specific surface area of heat transfer is big, can effectually give off the heat of flue gas in the environment on every side.

Description

Integrated biomass burner

Technical Field

The utility model relates to a biomass burning machine especially relates to an integral type biomass burning machine.

Background

The biomass burner is a biomass semi-gasification automatic control burner, and is a biomass pyrolysis burner taking organic biomass such as biomass particles and the like as fuel, and generally comprises two types of air-cooled biomass burners and water-cooled biomass burners.

This company is provided with the roast room of stoving tobacco leaf, in order to save the bioenergy, plan with the biomass burning machine to heat in the roast room, prior art's biomass burning machine is equipped with some firearms including hopper and combustion chamber down in the combustion chamber, its can not directly put and heat the roast room in the roast room.

The utility model discloses a flue-cured tobacco leaf designs an integral type biomass burning machine that heat exchange efficiency is high.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical scheme: an integrated biomass burner comprises a heat exchanger, a combustion furnace, a screw feeding burner and a blanking hopper; the heat exchanger is arranged on the upper end surface of the combustion furnace and is communicated with the inner cavity of the combustion furnace; the screw feeding combustor is communicated with the discharging hopper and the combustion furnace; the heat exchanger comprises a left fire box, a right fire box, a heat exchange tube and a smoke damper; the left fire box and the right fire box are arranged vertically and in parallel; the left end and the right end of the heat exchange tube are respectively communicated with the inner cavities of the left fire box and the right fire box; the outer side surface of the left fire box is provided with a smoke impact and a left ash removal door, the outer side surface of the right fire box is provided with a right ash removal door, and the right fire box is communicated with the inner cavity of the combustion furnace; the heat exchange tube is provided with fins.

Preferably, the combustion furnace comprises a furnace top, a furnace wall, a settling box, a support frame, a blast pipe, a feeding port and an ash pit door; the settling tank is arranged at the right side position close to the upper end of the combustion furnace and is communicated with the right fire box and the combustion furnace; the support frame is arranged at the left side position close to the upper end of the combustion furnace, and the support frame supports the left fire box; a feeding opening is formed in the middle of the front end face of the furnace wall of the combustion furnace, and a dust pit door is arranged below the feeding opening; the ash pit door is provided with a rectangular tubular door frame; the blast pipe is horizontally arranged on the furnace wall.

Preferably, the inner surface of the furnace wall is lined with refractory bricks.

Preferably, the outer surfaces of the furnace top, the furnace wall and the settling tank are provided with cooling fins.

Preferably, the settling tank is provided with an ash removal door, and a door frame of the ash removal door is in a rectangular tubular shape.

Preferably, the screw charging burner comprises a shield, an air chamber, a blower, a feeding pipe, a screw mechanism and an ignition mechanism; the air chamber is horizontally arranged, one end of the air chamber is fixedly connected with the feeding port, and the other end of the air chamber is connected and communicated with the shield; the feeding pipe is horizontally arranged in the air chamber, one end of the feeding pipe enters the inner cavity of the combustion furnace through the air chamber, and the other end of the feeding pipe enters the shield; the discharging end of the discharging hopper is communicated with the feeding end of the feeding pipe in the protective cover; the screw mechanism comprises a screw and a first motor for driving the screw, the screw is arranged in the feeding pipe, and the first motor is arranged in the shield; the air blower is arranged in the shield, and an air outlet of the air blower faces the air chamber; the ignition mechanism comprises an igniter, the igniter is positioned at the position close to the front end in the air chamber, and the front end of the igniter penetrates through the front end surface of the air chamber and extends to the inner cavity of the combustion furnace.

Preferably, the first ventilation opening is provided at a side of the shield.

Preferably, a combustion chamber is arranged on the front end face of the air chamber and is positioned in an inner cavity of the combustion furnace; the combustion chamber is designed in a U shape and is provided with a second ventilation opening.

Preferably, the steel pipe with openings at two ends is horizontally arranged in the screw feeding combustor, the front end of the steel pipe penetrates out from the front end face of the air chamber, the rear end of the steel pipe penetrates out from the rear end face of the shield, and lenses are arranged at the front end and the rear end of the steel pipe.

Preferably, a horizontal push rod is arranged in the screw rod charging burner, the front end of the push rod penetrates out of the front end face of the air chamber and is located above the combustion chamber, the push rod is an electric telescopic rod, and the rear end of the push rod is driven by a second motor arranged in the shield.

The utility model provides an integrated biomass burner, which adopts an integrated structure, can effectively radiate the heat generated by burning the biofuel to the surrounding environment, and can realize the baking of tobacco leaves; the heat exchanger is provided with a plurality of heat exchange tubes, each heat exchange tube is provided with a fin, the heat exchange specific surface area is large, and the heat of the flue gas can be effectively dissipated to the surrounding environment.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive work, wherein:

fig. 1 is a side view structure diagram of an integral type biomass burning machine that the utility model provides.

Fig. 2 is a front view structure diagram of the integrated biomass burner provided by the utility model.

Fig. 3 is a front structural view of a combustion furnace of an integrated biomass burner provided by the utility model.

Fig. 4 is a side view section structure diagram of a combustion furnace of an integrated biomass burner provided by the utility model.

Fig. 5 is a schematic view of a flow direction of flue gas of a combustion furnace of an integrated biomass burner provided by the present invention.

Fig. 6 is a side view section structure diagram of the partial structure of the screw feeding burner of the integrated biomass burner.

Fig. 7 is a three-dimensional structure view of a screw feeding burner of an integrated biomass burner.

Description of the drawings: 1-heat exchanger, 101-right fire box, 102-left fire box, 103-heat exchange tube, 104-fin, 105-left ash door, 106-right ash door, 107-handwheel, 108-handle, 109-smoke flushing, 2-combustion furnace, 201-furnace top, 202-furnace wall, 203-settling box, 204-inlet, 205-ash pit door, 206-ash door, 207-blast tube, 208-support frame, 209-heat sink, 210-refractory brick, 3-screw charging burner, 301-shield, 302-wind chamber, 303-feed tube, 304-first motor, 305-blower, 306-second motor, 307-push rod, 308-igniter, 309-combustion chamber, 310-second vent, 311-steel pipe, 312-lens, 313-first vent, 314-third vent, 4-discharge hopper.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 7, an integrated biomass burner includes a heat exchanger 1, a combustion furnace 2, a screw feeding burner 3 and a feeding hopper 4; the heat exchanger 1 is arranged on the upper end surface of the combustion furnace 2 and is communicated with the inner cavity of the combustion furnace 2; the screw feeding combustor 3 is communicated with the discharging hopper 4 and the combustion furnace 2; the heat exchanger 1 comprises a left fire box 102, a right fire box 101, a heat exchange tube 103 and a smoke damper 109; the left fire box 102 and the right fire box 101 are arranged vertically and in parallel; the heat exchange tubes 103 are arranged between the left fire box 102 and the right fire box 101, and the left end and the right end of each heat exchange tube 103 are respectively communicated with the inner cavities of the left fire box 102 and the right fire box 101; the outer side surface of the left fire box 102 is provided with a smoke impact 109 and a left ash removal door 105, the outer side surface of the right fire box 101 is provided with a right ash removal door 106, and the right fire box 101 is communicated with the inner cavity of the combustion furnace 2; the heat exchange tube 103 is provided with fins 104.

In the embodiment, the butt joint of the heat exchanger 1, the screw feeding combustor 3 and the combustion furnace 2 is connected by adopting bolt fastening connection or tightening buckle connection, so that the disassembly is convenient.

Further, the left ash removing door 105 and the right ash removing door 106 are provided with a handwheel 107 and a handle 108.

Further, the heat exchanger 1 is made of a Q235 steel plate with the thickness of more than or equal to 3.7mm, the heat exchange tube 103 adopts a 4-3-4 finned tube transverse arrangement structure from top to bottom, the fins 104 adopt Q195 standard fin belts, and the inner walls of the left fire box 102 and the right fire box 101 are respectively provided with 11 circular openings with the thickness of 135mm in 4-3-4 layers from top to bottom; the height of the vertical section of the smoke punch 109 is 600mm, the thickness of the smoke punch is more than or equal to 3.7mm, and the smoke punch is made of Q235 steel.

In this embodiment, the heat exchanger 1 is provided with 11 heat exchange tubes 103, each heat exchange tube 103 is provided with a fin 104, the heat exchange specific surface area is large, and the heat of the flue gas can be effectively dissipated to the surrounding environment.

Preferably, as shown in fig. 3 and 4, the combustion furnace 2 comprises a furnace top 201, a furnace wall 202, a settling tank 203, a support frame 208, a blast pipe 207, a feeding port 204 and a dust pit door 205; the settling tank 203 is arranged at the right side position close to the upper end of the combustion furnace 2, and the settling tank 203 is communicated with the right fire box 101 and the combustion furnace 2; the support frame 208 is arranged at the left side position close to the upper end of the combustion furnace 2, and the support frame 208 supports the left fire box 102; a feeding port 204 is arranged in the middle of the front end face of the furnace wall 202 of the combustion furnace 2, and a dust pit door 205 is arranged below the feeding port 204; the ash pit door 205 is provided with a rectangular tubular door frame; the blast pipe 207 is horizontally arranged on the furnace wall 202.

Furthermore, the supporting frame 208 is made of a Q235 steel plate with the thickness more than or equal to 3.7 mm.

Further, the furnace wall 202 is made by rolling and welding Q235 steel plates with the thickness of more than or equal to 3.7mm to form a cylindrical furnace body with the height of 1040mm and the outer diameter of 760 mm.

Furthermore, the settling tank 203 is made of a Q235 steel plate with the material thickness being more than or equal to 3.7mm, the upper end of the settling tank 203 is open, the settling tank is connected and closed with the right fire box 101 through a flange to form a flue gas channel, and the flange is provided with a groove and a bolt connecting hole.

Preferably, the inner surface of the furnace wall 202 is lined with refractory bricks 210.

Preferably, the outer surfaces of the furnace roof 201, the furnace wall 202 and the settling tank 203 are provided with cooling fins 209.

Further, arc-shaped radiating fins 209 are uniformly welded on the surface of the furnace roof 201, the radiating fins 209 are made of a Q235 steel plate with the thickness of more than or equal to 3.7mm, 14 radiating fins 209 with the specification of 350mm multiplied by 30mm are provided, 16 radiating fins 209 with the specification of 200mm multiplied by 30mm are provided, and the radiating fins are installed in a staggered manner.

Further, the furnace wall 202 is welded with radiating fins 209, the radiating fins 209 are made of Q235 steel plates with the thickness of more than or equal to 3.7mm, and 26 fins are uniformly welded along the furnace wall 202 from the top of the furnace wall 202; 21 radiating fins 209 with the specification of 450mm multiplied by 40mm are arranged, 5 radiating fins 209 with the specification of 300mm multiplied by 40mm are welded at the upper end of the feeding port 204, and the welding mode adopts staggered full welding.

Furthermore, the radiating fins 209 of the settling tank 203 are made of Q235 steel plates with the thickness of more than or equal to 3.7mm, wherein the radiating fins 209 with the specification of 450mm multiplied by 40mm have 7 fins, and the radiating fins 209 with the specification of 300mm multiplied by 40mm have 6 fins.

Preferably, the settling tank 203 is provided with an ash removal door 206, and the door frame of the ash removal door 206 is a rectangular pipe with the length of 552mm and 200mm multiplied by 150 mm.

Further, the flue gas enters the heat exchanger 1 through the settling tank 203, and as shown in fig. 5, dust in the flue gas settles in the settling tank 203.

Further, the ash cleaning door 206 of the settling box 203 and the ash pit door 205 of the combustion furnace 2 are both provided with rectangular tubular door frames, and the ash cleaning door 206 and the ash pit door 205 are arranged in parallel; the purpose of the above design is to enable the ash door 206 and pit door 205 to extend to the outer surface of the wall of the heating chamber in which the integrated biomass burner is located. The ash removing operation of the working personnel to the interior outside the heating chamber is convenient.

Preferably, as shown in fig. 6 and 7, the screw feeder combustion machine 3 comprises a shield 301, a plenum 302, a blower 305, a feed pipe 303, a screw mechanism and an ignition mechanism; the air chamber 302 is horizontally arranged, one end of the air chamber 302 is fixedly connected with the feeding port 204, and the other end of the air chamber 302 is connected with and communicated with the shield 301; the feeding pipe 303 is horizontally arranged in the air chamber 302, one end of the feeding pipe 303 enters the inner cavity of the combustion furnace 2 through the air chamber 302, and the other end of the feeding pipe 303 enters the shield 301; the lower hopper 4 is arranged on the upper end surface of the protective cover 301, and the discharge end of the lower hopper 4 is communicated with the feed end of the feed pipe 303 in the protective cover 301; the screw mechanism comprises a screw (not shown in the figure) and a first motor 304 for driving the screw, the screw is arranged in the feeding pipe 303, and the first motor 304 is arranged in the protective cover 301 and is positioned at the rear end of the feeding pipe 303; the blower 305 is arranged in the shield 301, and the air outlet of the blower faces the air chamber 302; the ignition mechanism comprises an igniter 308, the igniter 308 is positioned at a front position in the air chamber 302, and the front end of the igniter 308 extends to the inner cavity of the combustion furnace 2 through the front end surface of the air chamber 302.

Preferably, as shown in fig. 7, the first ventilation opening 313 is provided at a side surface of the shield 301.

Further, a third ventilation opening 314 communicated with the inside of the air chamber 302 is further formed in the front end face of the air chamber.

Further, the blower 305 blows air into the air chamber 302, and can perform a combustion supporting function.

Preferably, as shown in fig. 7, a combustion chamber 309 is installed on the front end face of the air chamber 302, and the combustion chamber 309 is located in the inner cavity of the combustion furnace 2; the combustion chamber 309 is designed in a U-shape and is opened with a plurality of second ventilation openings 310.

The combustion chamber 309 is made of heat-resistant cast iron or heat-resistant stainless steel, the second ventilation opening 310 is designed in a U shape, the flow direction of flame is the direction of the furnace top 201, and the central direction of the flame is ensured to be at the central position in the combustion furnace 2 under the condition of big fire combustion; the length of the combustion chamber 309 is larger than or equal to 320mm, and the inner diameter is larger than or equal to 165 mm.

Furthermore, the combustion chamber 309 is cast by heat-resistant cast iron, the material is QTRSi5 heat-resistant nodular cast iron or a material with better heat resistance, and the thickness is more than or equal to 8.0 mm; the bottom of the stainless steel is made of 12Cr17Mn6Ni5N stainless steel with the thickness of more than or equal to 2.0mm, acid-proof steel with the thickness of more than or equal to 4.0mm or 09CuPCrNi weathering steel with the thickness of more than or equal to 5.0 mm.

The combustion chamber 309 is made of heat-resistant stainless steel and can be divided into an inner layer and an outer layer. The inner layer is made of 06Cr25Ni20 or a material with better heat resistance, the thickness is more than or equal to 5.0mm, and the outer layer is made of stainless steel 12Cr17Mn6Ni5N with the thickness of more than or equal to 2.0mm or acid-resistant steel with the thickness of more than or equal to 4.0mm or 09CuPCrNi weather-resistant steel with the thickness of more than or equal to 5.0 mm.

Preferably, as shown in fig. 7, a steel tube 311 with two open ends is horizontally disposed in the screw feeder combustion engine 3, the front end of the steel tube 311 penetrates through the front end surface of the air chamber 302, the rear end of the steel tube 311 penetrates through the rear end surface of the shield 301, and both the front end and the rear end of the steel tube 311 are provided with lenses 312; which functions to allow a person to view the flame conditions within the combustion chamber 309 from the rear end of the steel tube 311.

Preferably, a horizontal push rod 307 is arranged in the screw charging burner 3, the front end of the push rod 307 penetrates out from the front end surface of the air chamber 302 and is positioned above the combustion chamber 309, the push rod 307 is an electric telescopic rod, and the rear end of the push rod is driven by a second motor 306 arranged in the shield 301; the push rod 307 can automatically remove ash and coke slag generated by the combustion of fuel on the combustion chamber 309.

In the embodiment, the biofuel is fed from the lower hopper 4 to the combustion chamber 309 through the feeding pipe 303 of the screw feeding combustion machine 3 for combustion; hot gas generated by the combustion enters the heat exchange pipe 103 of the heat exchanger 1 through the settling tank 203 to dissipate heat to the outside.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes made by the present specification can be changed, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims

1. The integrated biomass burner is characterized by comprising a heat exchanger, a combustion furnace, a screw feeding burner and a blanking hopper; the heat exchanger is arranged on the upper end surface of the combustion furnace and is communicated with the inner cavity of the combustion furnace; the screw feeding combustor is communicated with the discharging hopper and the combustion furnace; the heat exchanger comprises a left fire box, a right fire box, a heat exchange tube and a smoke damper; the left fire box and the right fire box are arranged vertically and in parallel; the left end and the right end of the heat exchange tube are respectively communicated with the inner cavities of the left fire box and the right fire box; the outer side surface of the left fire box is provided with a smoke impact and a left ash removal door, the outer side surface of the right fire box is provided with a right ash removal door, and the right fire box is communicated with the inner cavity of the combustion furnace; the heat exchange tube is provided with fins.

2. The integrated biomass burner as claimed in claim 1, wherein the burner comprises a furnace top, a furnace wall, a settling tank, a support frame, a blast pipe, a feeding port and an ash pit door; the settling tank is arranged at the right side position close to the upper end of the combustion furnace and is communicated with the right fire box and the combustion furnace; the support frame is arranged at the left side position close to the upper end of the combustion furnace, and the support frame supports the left fire box; a feeding opening is formed in the middle of the front end face of the furnace wall of the combustion furnace, and a dust pit door is arranged below the feeding opening; the ash pit door is provided with a rectangular tubular door frame; the blast pipe is horizontally arranged on the furnace wall.

3. The integrated biomass burner of claim 2, wherein the inner surface of the furnace wall is lined with refractory bricks.

4. The integrated biomass burner as recited in claim 2, wherein the furnace roof, the furnace wall and the external surface of the settling tank are provided with cooling fins.

5. The integrated biomass burner of claim 2, wherein the settling tank is provided with an ash removal door, and a door frame of the ash removal door is in a rectangular tubular shape.

6. The integrated biomass burner of claim 2, wherein the screw-fed burner comprises a shroud, a plenum, a blower, a feed pipe, a screw mechanism and an ignition mechanism; the air chamber is horizontally arranged, one end of the air chamber is fixedly connected with the feeding port, and the other end of the air chamber is connected and communicated with the shield; the feeding pipe is horizontally arranged in the air chamber, one end of the feeding pipe enters the inner cavity of the combustion furnace through the air chamber, and the other end of the feeding pipe enters the shield; the discharging end of the discharging hopper is communicated with the feeding end of the feeding pipe in the protective cover; the screw mechanism comprises a screw and a first motor for driving the screw, the screw is arranged in the feeding pipe, and the first motor is arranged in the shield; the air blower is arranged in the shield, and an air outlet of the air blower faces the air chamber; the ignition mechanism comprises an igniter, the igniter is positioned at the position close to the front end in the air chamber, and the front end of the igniter penetrates through the front end surface of the air chamber and extends to the inner cavity of the combustion furnace.

7. The integrated biomass burner of claim 6, wherein the first vent is disposed on a side of the shroud.

8. The integrated biomass burner as claimed in claim 6, wherein a combustion chamber is installed on the front end face of the air chamber, and the combustion chamber is located in the inner cavity of the combustion furnace; the combustion chamber is designed in a U shape and is provided with a second ventilation opening.

9. The integrated biomass burner of claim 6, wherein the steel tube with openings at both ends is horizontally placed in the screw feeding burner, the front end of the steel tube penetrates out from the front end face of the air chamber, the rear end of the steel tube penetrates out from the rear end face of the shield, and both the front end and the rear end of the steel tube are provided with lenses.

10. The integrated biomass burner of claim 8, wherein a horizontal push rod is arranged in the screw feeding burner, the front end of the push rod penetrates out of the front end face of the air chamber and is positioned above the combustion chamber, the push rod is an electric telescopic rod, and the rear end of the push rod is driven by a second motor arranged in the shield.