Water pipe double-chamber chain belt crushing direct-combustion bundling combustion biomass hearth

Abstract

The invention discloses a water pipe double-chamber chain belt crushing direct-combustion bundle combustion biomass hearth which comprises a hearth and a crushing system, and the hearth is formed by a space defined by a hearth front water-cooled wall, a hearth rear water-cooled wall, a left water-cooled wall, a right water-cooled wall and an air chamber upper water-cooled wall; the crushing system is composed of a material storage chamber, a first-stage crushing chamber, a second-stage crushing chamber, a crushing device and a crushing and fire stirring device. By means of the structural arrangement, biomass fuel can be heated, dried and crushed by high-temperature radiation in the hearth, the crushing effect is good, the fuel can be directly bundled and fully combusted, emission of nitric oxide is reduced, and energy conservation and environmental protection are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boiler, in particular to a water pipe double-chamber chain belt breaking direct combustion and baled biomass furnace. BACKGROUND

[0002] The traditional boiler directly breaks and burns large bundles, which causes environmental pollution during the breaking process and has complex feeding and high cost. The direct combustion boiler directly burns large bundles in the furnace, which has low combustion efficiency and does not form a high-temperature radiation furnace chamber. The multi-chamber chain belt breaking in the furnace has low combustion efficiency. Therefore, how to complete the double-chamber breaking and the high-temperature radiation drying and heating breaking of the biomass fuel in the furnace is provided, so that the double-chamber strong breaking is realized, the chain belt is cooled in the low-temperature zone, the fuel can be directly baled and fully combusted, the nitrogen oxide emission is reduced, and the boiler heat efficiency is improved, which becomes a problem to be solved urgently. SUMMARY

[0003] The present application aims at improving the existing problems, overcoming the shortcomings and defects of the prior art, and providing a water pipe double-chamber chain belt breaking direct combustion and baled biomass furnace, so that the biomass fuel can complete the double-chamber breaking and the high-temperature radiation drying and heating breaking in the furnace, so that the double-chamber strong breaking is realized, the chain belt is cooled in the low-temperature zone, the fuel can be directly baled and fully combusted, the nitrogen oxide emission is reduced, and the boiler heat efficiency is improved.

[0004] To achieve the above-mentioned purpose, the present application provides the following scheme: The present application provides a water pipe double-chamber chain belt breaking direct combustion and baled biomass furnace, which comprises a furnace chamber and a breaking system, wherein the furnace chamber is communicated with a first breaking chamber and a second breaking chamber, the material storage chamber is located in the front part of the first breaking chamber and is separated by a sealed baffle door, the air chamber is located in the lower part of the first breaking chamber and the upper part of the chain grate, the breaking system is arranged in the middle and lower part of the space surrounded by the furnace chamber, the first breaking chamber, the air chamber and the chain grate, and the chain grate is arranged at the bottom of the furnace chamber.

[0005] The breaking system is composed of a material storage chamber, a first breaking chamber, a second breaking chamber, a breaking device and a breaking fire device; the breaking device is composed of an upper breaking device I, a lower breaking device I, a lower breaking device II and an upper breaking device II, the upper breaking device I, the lower breaking device I, the lower breaking device II and the upper breaking device II each include a driving shaft and a cooling shaft, the driving shaft is arranged outside the furnace or in a low temperature zone and is connected with the motor through a coupling and a transmission gear; the cooling shaft is arranged in a high temperature zone, one end of the cooling shaft is communicated with a water inlet header and the other end is communicated with a water outlet header, thus forming an independent cooling system to achieve the purpose of cooling, a chain belt is engaged with the gears on the driving shaft and the cooling shaft, and breaking blades are welded on the chain belt.

[0006] The upper breaking device I, the lower breaking device I, the lower breaking device II and the upper breaking device II are each driven to rotate by the motor, and the breaking blades are further driven to rotate to achieve a strong breaking effect.

[0007] The chain belt can be arranged separately or densely on the driving shaft and the cooling shaft.

[0008] Preferably, the first breaking chamber is located at the lower front part of the hearth and is composed of a space surrounded by the lower breaking device I, the upper breaking device I, a sealing plate I, a sealing baffle door, an upper water cooling wall of the air chamber and a lower front water cooling wall.

[0009] Preferably, the second breaking chamber is arranged at the lower middle part of the hearth and is composed of a space surrounded by the lower breaking device II, the upper breaking device II, a lower rear water cooling wall of the hearth, a front water cooling wall of the hearth, an upper water cooling wall of the air chamber and a chain grate.

[0010] Preferably, the breaking fire device is arranged at the lower rear part of the hearth.

[0011] Preferably, the front water cooling wall of the hearth, the rear water cooling wall of the hearth and the upper water cooling wall of the air chamber are arranged at intervals or on both sides of the tube panel, which provides space for the installation of the breaking device and the breaking fire device and achieves a strong breaking effect.

[0012] Preferably, the material storage chamber is composed of a sealing baffle door, a sealing plate II and a feeder, the height of the feeder can be adjusted by the lifting of the hydraulic device to complete the feeding work.

[0013] Preferably, the sealing baffle door is arranged in parallel with two of them, one of which is opened and the other is closed, which plays a role in sealing.

[0014] Preferably, the hearth is composed of the space surrounded by the front water-cooled wall of the hearth, the left and right water-cooled walls, the upper water-cooled wall of the air chamber, the rear water-cooled wall of the hearth, the sealing plate I and the sealing baffle door; the upper end of the front water-cooled wall of the hearth is communicated with the upper header of the front water-cooled wall of the hearth, the lower end of the front water-cooled wall of the hearth is communicated with the lower header of the front water-cooled wall of the hearth, the upper end of the left and right water-cooled walls is communicated with the upper header of the left and right water-cooled walls, the lower end of the left and right water-cooled walls is communicated with the lower header of the left and right water-cooled walls, the upper end of the upper water-cooled wall of the air chamber is communicated with the upper header of the water-cooled wall of the air chamber, the lower end of the upper water-cooled wall of the air chamber is communicated with the lower header of the water-cooled wall of the air chamber; the upper end of the rear water-cooled wall of the hearth is communicated with the upper header of the rear water-cooled wall of the hearth, the lower end of the rear water-cooled wall of the hearth is communicated with the lower header of the rear water-cooled wall of the hearth, and the flue gas outlet is arranged above the rear water-cooled wall of the hearth.

[0015] Preferably, the air chamber is composed of the space surrounded by the lower header of the water-cooled wall of the air chamber, the upper header of the water-cooled wall of the air chamber, the upper water-cooled wall of the air chamber, the lower water-cooled wall of the air chamber and the air cap, one end of the upper water-cooled wall of the air chamber and the lower water-cooled wall of the air chamber is connected with the lower header of the water-cooled wall of the air chamber, and the other end is connected with the upper header of the water-cooled wall of the air chamber, part of the upper water-cooled wall of the air chamber plays a supporting role, and the upper surface of part of the upper water-cooled wall of the air chamber is covered with air caps to play a role of air supply.

[0016] Preferably, the chain grate is horizontally arranged.

[0017] The present application has the following technical effects relative to the prior art: the water pipe double-chamber chain belt breaking direct combustion bale burning biomass hearth can make the biomass fuel complete double-chamber breaking and hearth high-temperature radiation drying and heating breaking in the hearth, so that the double-chamber strong breaking is realized, the chain belt is cooled in the low-temperature zone, the fuel can be directly baled and fully combusted, the emission of nitrogen oxides is reduced, and the thermal efficiency of the boiler is improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0019] Figure 1 It is a front view of the structure of the first embodiment of the water pipe double-chamber chain belt breaking direct combustion bale burning biomass hearth of the present application.

[0020] Figure 2 It is a B-B sectional view of the structure of the second embodiment of the water pipe double-chamber chain belt breaking direct combustion bale burning biomass hearth of the present application. Figure 1 .

[0021] Figure 3 B-B sectional view of structure of the second embodiment of the water pipe double-chamber chain belt breaking direct combustion bunched burning biomass furnace of the present application Figure 2 .

[0022] Figure 4 Enlarged view of the first embodiment of the water pipe double-chamber chain belt breaking direct combustion bunched burning biomass furnace of the present application

[0023] In the figure: 1 primary breaking chamber; 2 sealing plate I; 3 sealing baffle door; 4 material storage chamber; 5 feeder; 6 sealing plate II; 7 hydraulic device; 8 wind chamber water cooled wall upper header; 9 wind chamber upper water cooled wall; 10 wind chamber lower water cooled wall; 11 wind cap; 12 wind chamber; 13 lower breaking device I; 14 wind chamber water cooled wall lower header; 15 lower breaking device II; 16 chain grate; 17 left and right side water cooled wall lower header; 18 furnace back water cooled wall lower header; 19 breaking poking device; 20 upper breaking device II; 21 furnace back water cooled wall; 22 furnace; 23 flue gas outlet; 24 furnace back water cooled wall upper header; 25 furnace front water cooled wall upper header; 26 furnace front water cooled wall; 27 left and right side water cooled wall; 28 left and right side water cooled wall upper header; 29 upper breaking device I; 30 furnace front water cooled wall lower header; 31 secondary breaking chamber; 32 breaking device; 33 motor; 34 coupling; 35 transmission gear; 36 driving shaft; 37 water inlet pipe; 38 cooling shaft; 39 water inlet header; 40 chain belt; 41 breaking blade; 42 water outlet header; 43 water outlet pipe. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0025] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0026] Embodiment one Reference Figure 1 , Figure 2 , Figure 3 The application provides a water pipe double-chamber chain belt breaking direct combustion bundle burning biomass furnace, which comprises a furnace and a breaking system, the furnace is communicated with a first breaking chamber and a second breaking chamber, a material storage chamber is arranged in the front part of the first breaking chamber and is separated by a sealing baffle door, an air chamber is arranged in the lower part of the first breaking chamber and the upper part of a chain grate, the breaking system is arranged in the middle and lower part of the space surrounded by the furnace, the first breaking chamber, the air chamber and the chain grate, and the chain grate is arranged at the bottom of the furnace.

[0027] The breaking system is composed of the material storage chamber, the first breaking chamber, the second breaking chamber, a breaking device and a breaking fire device, the breaking device is composed of an upper breaking device I, a lower breaking device I, a lower breaking device II and an upper breaking device II, the upper breaking device I, the lower breaking device I, the lower breaking device II and the upper breaking device II each comprise a driving shaft and a cooling shaft, the driving shaft is arranged outside the furnace or in a low temperature zone and is connected with a motor through a coupling and a transmission gear, the cooling shaft is arranged in a high temperature zone, one end of the cooling shaft is communicated with a water inlet header, and the other end is communicated with a water outlet header, thereby forming an independent cooling system to achieve the purpose of cooling, a chain belt is engaged with gears on the driving shaft and the cooling shaft, and a breaking blade is welded on the chain belt.

[0028] The upper breaking device I, the lower breaking device I, the lower breaking device II and the upper breaking device II are rotated by the motor to drive the driving shaft and the breaking blade to rotate, thereby achieving a strong breaking effect.

[0029] The chain belt can be arranged separately or densely on the driving shaft and the cooling shaft.

[0030] The first breaking chamber is arranged in the lower front part of the furnace and is composed of the lower breaking device I, the upper breaking device I, a sealing plate, the sealing baffle door, the upper air chamber water cooling wall and the lower furnace front water cooling wall.

[0031] The second breaking chamber is arranged in the middle and lower part of the furnace and is composed of the lower breaking device II, the upper breaking device II, the lower rear furnace water cooling wall, the furnace front water cooling wall, the upper air chamber water cooling wall and the chain grate.

[0032] The breaking fire device is arranged in the lower rear part of the furnace.

[0033] The tube panel interval arrangement or two side arrangement of the furnace front water cooled wall 26, the furnace rear water cooled wall 21 and the air chamber upper water cooled wall 9 provides space for the installation of the crushing device 32 and the crushing poking device 19, and achieves strong crushing effect.

[0034] The material storage room 4 is composed of the sealing baffle door 3, the sealing plate II 6 and the feeder 5, the height of the feeder 5 can be adjusted by the lifting of the hydraulic device 7 to complete the feeding work.

[0035] The two sealing baffle doors 3 are arranged in parallel, one is opened and the other is closed, which plays a role of tight sealing.

[0036] The furnace 22 is composed of the space surrounded by the furnace front water cooled wall 26, the left and right side water cooled walls 27, the air chamber upper water cooled wall 9, the furnace rear water cooled wall 21, the sealing plate I 2 and the sealing baffle door 3; the upper end of the furnace front water cooled wall 26 is communicated with the furnace front water cooled wall upper header 25, the lower end of the furnace front water cooled wall 26 is communicated with the furnace front water cooled wall lower header 30, the upper end of the left and right side water cooled walls 27 is communicated with the left and right side water cooled wall upper header 28, the lower end of the left and right side water cooled walls 27 is communicated with the left and right side water cooled wall lower header 17, the upper end of the air chamber upper water cooled wall 9 is communicated with the air chamber water cooled wall upper header 8, the lower end of the air chamber upper water cooled wall 9 is communicated with the air chamber water cooled wall lower header 14; the upper end of the furnace rear water cooled wall 21 is communicated with the furnace rear water cooled wall upper header 24, the lower end of the furnace rear water cooled wall 21 is communicated with the furnace rear water cooled wall lower header 18, and the smoke outlet 23 is arranged above the furnace rear water cooled wall 21.

[0037] The air chamber 12 is composed of the space surrounded by the air chamber water cooled wall lower header 14, the air chamber water cooled wall upper header 8, the air chamber upper water cooled wall 9, the air chamber lower water cooled wall 10 and the air cap 11; one end of the air chamber upper water cooled wall 9 and the air chamber lower water cooled wall 10 is connected with the air chamber water cooled wall lower header 14, and the other end is connected with the air chamber water cooled wall upper header 8; part of the air chamber upper water cooled wall 9 plays a supporting role, and the air cap 11 is arranged on part of the air chamber upper water cooled wall 9 to play a role of air supply.

[0038] The chain grate 16 is arranged horizontally.

[0039] The working process and principle of the present application are as follows: firstly, the fuel bundle is sent to the material storage chamber 4 by the feeding device (not shown), and is pushed into the primary crushing chamber 1 by the feeder 5, and is heated and dried by the radiation heat of the hearth, and after the bundle is broken by the lower crushing device I 13 and the upper crushing device I 29, it is burned and rolled down to the secondary crushing chamber 31 under the action of gravity, and is continuously heated and dried and broken by the lower crushing device II 15 and the upper crushing device II 20, and then falls onto the chain grate 16 and is sent to the crushing and poking device 19 under the action of mechanical power to continue the crushing and poking, and the heat and high-temperature flame generated thereby heat and dry and break the fuel bundle to make it burn more fully, and the heat is exchanged with the front water-cooled wall 26, the rear water-cooled wall 21 and the left and right side water-cooled walls 27, and the flue gas after being cooled is discharged from the flue gas outlet 23, and the boiler combustion and heat exchange working process is completed.

[0040] The present application has the following advantages: 1. The crushing device is arranged to make the fuel bundle stay in the primary crushing chamber and the secondary crushing chamber for a long time, so that the fuel bundle can be better dried and broken; 2. The chain belt is driven by the motor to rotate at high speed, so that the crushing strength is high and the crushing effect is good; 3. The design of the boiler hearth structure can make the radiation heat of the hearth heat and dry the fuel bundle well; 4. The design of the air chamber structure can provide sufficient oxygen for the fuel combustion, and also dry the fuel bundle; 5. The design of the cooling shaft in the crushing device can cool the crushing device well, so that the setting position is not limited, i.e. it can be arranged in the high-temperature zone.

[0041] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0042] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those skilled in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application.

Claims

1. A water tube double chamber chain belt broken straight burning bundle burning biomass furnace, characterized in that, It comprises: a furnace and a crushing system, the furnace is communicated with the first crushing chamber and the second crushing chamber, the material storage chamber is located in the front of the first crushing chamber and is separated by a sealed baffle door, the air chamber is located in the lower part of the first crushing chamber and the upper part of the chain grate; the crushing system is arranged in the middle and lower part of the space surrounded by the furnace, the first crushing chamber, the air chamber and the chain grate; the chain grate is arranged at the bottom of the furnace; the crushing system is composed of the material storage chamber, the first crushing chamber, the second crushing chamber, the crushing device and the crushing and poking device; the crushing device is composed of the upper crushing device I, the lower crushing device I, the lower crushing device II and the upper crushing device II, the upper crushing device I, the lower crushing device I, the lower crushing device II and the upper crushing device II each comprise a driving shaft and a cooling shaft, the driving shaft is arranged outside the furnace or in a low temperature zone and is connected with the motor through the coupling and the transmission gear; the cooling shaft is arranged in a high temperature zone, one end of the cooling shaft is communicated with the water inlet header and the other end is communicated with the water outlet header, thus forming an independent cooling system to achieve the purpose of cooling, the chain belt is engaged with the gears on the driving shaft and the cooling shaft, and the crushing blades are welded on the chain belt; the upper crushing device I, the lower crushing device I, the lower crushing device II and the upper crushing device II are each driven to rotate by the motor, and the crushing blades are rotated to achieve a strong crushing effect; the chain belt can be arranged separately or densely on the driving shaft and the cooling shaft.

2. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that the first crushing chamber is located in the lower front part of the furnace and is composed of the space surrounded by the lower crushing device I, the upper crushing device I, the sealing plate I, the sealing baffle door, the upper air chamber water cooling wall and the lower furnace front water cooling wall.

3. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that the second crushing chamber is arranged in the lower middle part of the furnace and is composed of the space surrounded by the lower crushing device II, the upper crushing device II, the lower rear furnace water cooling wall, the furnace front water cooling wall, the upper air chamber water cooling wall and the chain grate.

4. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that the crushing and poking device is located in the lower rear part of the furnace.

5. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 3, characterized in that the furnace front water cooling wall, the furnace rear water cooling wall and the upper air chamber water cooling wall are arranged at intervals or on both sides of the tube panel, such a structure design provides space for the installation of the crushing device and the crushing and poking device and achieves a strong crushing effect.

6. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that the material storage chamber is composed of the sealing baffle door, the sealing plate II and the feeder, the height of the feeder can be adjusted by the lifting of the hydraulic device to complete the feeding work.

7. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 2, characterized in that the two sealing baffle doors are arranged in parallel, one is opened and the other is closed, which plays a role in sealing tightly.

8. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that The furnace is composed of a space surrounded by a front water cooled wall, left and right side water cooled walls, an upper air chamber water cooled wall, a rear water cooled wall, a sealing plate I and a sealing baffle door; the upper end of the front water cooled wall is communicated with a front water cooled wall upper header, the lower end of the front water cooled wall is communicated with a front water cooled wall lower header, the upper end of the left and right side water cooled walls is communicated with left and right side water cooled wall upper headers, the lower end of the left and right side water cooled walls is communicated with left and right side water cooled wall lower headers, the upper end of the upper air chamber water cooled wall is communicated with an air chamber water cooled wall upper header, the lower end of the upper air chamber water cooled wall is communicated with an air chamber water cooled wall lower header; the upper end of the rear water cooled wall is communicated with a rear water cooled wall upper header, the lower end of the rear water cooled wall is communicated with a rear water cooled wall lower header, and a flue gas outlet is arranged above the rear water cooled wall.

9. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that The air chamber is composed of a space surrounded by an air chamber water cooled wall lower header, an air chamber water cooled wall upper header, an upper air chamber water cooled wall, a lower air chamber water cooled wall and a wind cap, one end of the upper air chamber water cooled wall and the lower air chamber water cooled wall is connected with the air chamber water cooled wall lower header, the other end is connected with the air chamber water cooled wall upper header, a part of the upper air chamber water cooled wall plays a supporting role, and a part of the upper air chamber water cooled wall is covered with wind caps to play a role of air supply.

10. The water tube double chamber chain belt broken straight combustion bundled biomass furnace according to claim 1, characterized in that The chain grate is horizontally arranged.

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