CN210568368U - Biomass briquette fuel semi-gasification combustion pressure-bearing boiler - Google Patents
Biomass briquette fuel semi-gasification combustion pressure-bearing boiler Download PDFInfo
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- CN210568368U CN210568368U CN201920852473.2U CN201920852473U CN210568368U CN 210568368 U CN210568368 U CN 210568368U CN 201920852473 U CN201920852473 U CN 201920852473U CN 210568368 U CN210568368 U CN 210568368U
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 117
- 238000002309 gasification Methods 0.000 title claims abstract description 74
- 239000000446 fuel Substances 0.000 title claims abstract description 43
- 239000002028 Biomass Substances 0.000 title claims abstract description 38
- 239000004484 Briquette Substances 0.000 title claims abstract description 30
- 239000000779 smoke Substances 0.000 claims abstract description 47
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 29
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 29
- 238000005192 partition Methods 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 12
- 239000003546 flue gas Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 24
- 239000003517 fume Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000004939 coking Methods 0.000 description 10
- 238000010438 heat treatment Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 6
- 238000002844 melting Methods 0.000 description 6
- 230000008018 melting Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000003031 feeding effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000010902 straw Substances 0.000 description 1
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Abstract
The utility model discloses a biomass briquette fuel semi-gasification combustion pressure-bearing boiler, which comprises a boiler shell, a hearth, a front arch, a rear arch and a traveling grate; the device also comprises a separation wall and a flue; the partition wall is fixed in the hearth; the front arch, the partition wall and the hearth enclose a semi-gasification combustion chamber; the rear arch top wall, the partition wall and the hearth are enclosed to form a reinforced combustion chamber; the bottom wall of the rear arch and the hearth enclose a fixed carbon burnout chamber; the partition wall is provided with a gas nozzle for communicating the semi-gasification combustion chamber and the intensified combustion chamber; the rear arch is provided with a smoke port for communicating the intensified combustion chamber and the fixed carbon burnout chamber; the bottom end of the partition wall and the top surface of the chain grate form a material homogenizing port; the flue is communicated with the intensified combustion chamber and the fixed carbon burnout chamber. The utility model discloses a set up half gasification combustion chamber and fixed carbon burn-off chamber, make fuel realize the staged combustion, produced nitrogen oxide concentration is low, can effectively improve biomass briquette fuel's combustion efficiency to satisfy the fume emission requirement after the burning.
Description
Technical Field
The utility model relates to a biomass briquette burning technical field, more specifically the utility model relates to a biomass briquette semi-gasification burning pressure-bearing boiler that says so.
Background
At present, from the future energy planning of 10-30 years, coal still occupies the main position in primary energy consumption in China. The layer combustion boiler is a boiler which places fuel on a fixed or movable grate to form a uniform material layer with a certain thickness, air is introduced from the bottom of the grate, combustion reaction is carried out through the fuel layer, and layered combustion is adopted. Because the coal gasification furnace has the advantages of simple operation, high degree of mechanization, convenient operation and maintenance and the like, the coal gasification furnace is widely adopted, is important energy-using equipment in the fields of China industry and centralized heat supply, consumes about 4 hundred million tons of standard coal every year and accounts for 15 percent of the total coal consumption in China. The biomass briquette fuel such as straw particles and briquettes has the advantages of high calorific value, environmental protection, renewability and the like, can replace coal to a certain extent, and saves energy.
However, the existing fuel boiler still has the defects of insufficient biomass combustion, low biomass ash melting point, easy coking, low boiler thermal efficiency and the like. Although the particularity of the biomass fuel can ensure that the emission of sulfur dioxide reaches the standard, the nitrogen oxide cannot meet the emission requirement.
Therefore, how to provide a biomass briquette combustion boiler with sufficient combustion and high thermal efficiency is a problem that needs to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a biomass briquette fuel semi-gasification burning pressure-bearing boiler can effectively improve biomass briquette fuel's combustion efficiency to satisfy the fume emission requirement after the burning.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a biomass briquette fuel semi-gasification combustion pressure-bearing boiler comprises: the boiler comprises a boiler shell, a hearth, a front arch, a rear arch and a chain grate; the boiler shell is fixed at the top of the hearth; the front arch is fixed at the front end of the hearth, the rear arch is fixed at the rear end of the hearth and extends towards the middle part, and the traveling grate is horizontally positioned at the bottom of the hearth; the device also comprises a separation wall and a flue;
the partition wall is fixed in the hearth and is positioned between the front arch and the rear arch; the front arch, the partition wall and the hearth enclose a semi-gasification combustion chamber; the rear arch top wall, the separation wall and the hearth are enclosed to form a reinforced combustion chamber; the rear arch bottom wall and the hearth enclose a fixed carbon burnout chamber; the partition wall is provided with a gas nozzle for communicating the semi-gasification combustion chamber and the intensified combustion chamber; the rear arch is provided with a flue gas port for communicating the intensified combustion chamber with the fixed carbon burnout chamber; a gap is formed between the bottom end of the isolation wall and the top surface of the chain grate, and a material homogenizing port is formed;
the flue is communicated with the intensified combustion chamber and the fixed carbon burnout chamber and is used for discharging flue gas after combustion.
By adopting the technical scheme, the utility model solves the problem of intermittent operation caused by coking of the existing biomass boiler, and can continuously feed and discharge slag by adopting the chain grate; the temperature in the semi-gasification combustion chamber can be controlled in a lower temperature range, gas is generated while coking is not easy to occur, staged combustion is realized in the semi-gasification combustion chamber and the fixed carbon burnout chamber, the concentration of generated nitrogen oxides is low, and the environment-friendly effect is good; and simultaneously, the utility model discloses a successive layer burning and the flue gas of half gasification combustion chamber, intensive combustion chamber and fixed carbon burn-off chamber are handled, have not only improved the combustion effect, have satisfied the fume emission requirement after the burning moreover.
Preferably, in the biomass briquette fuel semi-gasification combustion pressure-bearing boiler, a secondary air port is arranged at the air injection port. The biomass solidified forming fuel is incompletely combusted in the semi-gasification combustion chamber, so that a large amount of combustible gas is collected to the top of the semi-gasification combustion chamber to form a gas collecting area, the temperature of a main gasification area of the semi-gasification combustion chamber can be controlled below 800 ℃ and is lower than an ash melting point, coking is prevented, and generation of nitrogen oxides is inhibited.
Preferably, the biomass briquette semi-gasification combustion pressure-bearing boiler further comprises a front smoke box, a rear smoke box and a threaded smoke pipe; the front smoke box is fixed on the outer wall of the front end of the boiler shell and is communicated with the flue; the rear smoke box is fixed on the outer wall of the rear end of the pot shell and used for discharging smoke; the threaded smoke pipe is fixed inside the boiler shell, and two ends of the threaded smoke pipe are respectively communicated with the front smoke box and the rear smoke box. The heating area of the boiler shell is increased, and the utilization rate of combustion heat is improved.
Preferably, in the biomass briquette fuel semi-gasification combustion pressure-bearing boiler, the flue is splayed and positioned on two sides of the top of the semi-gasification combustion chamber and the top of the intensified combustion chamber, one end of the flue is communicated with the intensified combustion chamber and the fixed carbon burnout chamber, and the other end of the flue is communicated with the front smoke box. The length of the flue is increased, the heating area is increased, and the utilization rate of combustion heat is increased.
Preferably, the biomass briquette fuel semi-gasification combustion pressure-bearing boiler further comprises a header, a downcomer and a convection bank; the header is positioned on two sides of the top of the chain grate, one end of the header is provided with a water inlet, and the other end of the header is communicated with the boiler shell; the downcomer is positioned at the rear end of the hearth, and two ends of the downcomer are respectively communicated with the boiler shell and the header; the top of convection bank surrounds the flue sets up, and both ends communicate respectively the pot shell with the collection case. By reasonably arranging heating surfaces such as the boiler shell, the header, the convection bank, the down pipes, the threaded smoke pipes and the like, on one hand, the exhaust gas temperature can be reduced, on the other hand, the feed water temperature of the boiler can be improved, and the boiler efficiency is greatly improved.
Preferably, in the biomass briquette semi-gasification combustion pressure-bearing boiler, the header is of a hollow cylindrical structure, extends along the front-back direction of the hearth, and penetrates through the hearth. The heating area of the header is increased, the feed water temperature of the boiler is favorably improved, and the boiler efficiency is greatly improved.
Preferably, in the biomass briquette semi-gasification combustion pressure-bearing boiler, a plurality of isobaric air chambers are uniformly arranged below the traveling grate along the conveying direction of the traveling grate. The isobaric air chamber can effectively control the temperature of the semi-gasification combustion chamber and the fixed carbon burnout chamber, a small amount of air is supplied to the isobaric air chamber in the semi-gasification combustion chamber, a large amount of fuel volatile components are separated out and fully fill the semi-gasification combustion chamber, the temperature of the semi-gasification combustion chamber is controlled below 800 ℃ and is lower than the ash melting point, and coking is effectively prevented; in the fixed carbon burnout chamber, the isobaric air chamber supplies air uniformly, and the formed fixed carbon is fully burnt out in the area under the action of radiant heat of the rear arch.
Preferably, in the biomass briquette semi-gasification combustion pressure-bearing boiler, a hopper is fixed at an inlet at the front end of the hearth, and the hopper is used for feeding materials to the chain grate in a layered manner. Can improve the feeding effect, make the fuel pile up in half gasification combustion chamber, be favorable to improving combustion efficiency.
Preferably, in the biomass briquette fuel semi-gasification combustion pressure-bearing boiler, the space volume of the semi-gasification combustion chamber is determined according to the hearth volume and the combustion amount, so as to ensure that the fuel is fully combusted. The space of the semi-gasification combustion chamber is large enough, the fuel is fully combusted, the exhaust gas temperature of the boiler is low, the thermal efficiency of the boiler is high, and the generated heat source is continuously supplied to a heat user.
It should be noted that, the flue gas discharged from the rear smoke box is introduced into the economizer, passes through the dust remover and the induced draft fan, and is discharged to the atmosphere through the chimney, and these are conventional arrangements in the prior art, and are not described herein again.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a biomass briquette fuel semi-gasification burning pressure-bearing boiler has following beneficial effect:
1. the utility model solves the problem of intermittent operation caused by coking of the existing biomass boiler, and can feed and discharge slag continuously due to the adoption of the chain grate; the temperature in the semi-gasification combustion chamber can be controlled in a lower temperature range, gas is generated while coking is not easy to occur, staged combustion is realized in the semi-gasification combustion chamber and the fixed carbon burnout chamber, the concentration of generated nitrogen oxides is low, and the environment-friendly effect is good; and simultaneously, the utility model discloses a successive layer burning and the flue gas of half gasification combustion chamber, intensive combustion chamber and fixed carbon burn-off chamber are handled, have not only improved the combustion effect, have satisfied the fume emission requirement after the burning moreover.
2. The biomass solidified forming fuel is incompletely combusted in the semi-gasification combustion chamber, so that a large amount of combustible gas is collected to the top of the semi-gasification combustion chamber to form a gas collecting area, the temperature of a main gasification area of the semi-gasification combustion chamber can be controlled below 800 ℃ and is lower than an ash melting point, coking is prevented, and generation of nitrogen oxides is inhibited.
3. By reasonably arranging heating surfaces such as the boiler shell, the header, the convection bank, the down pipes, the threaded smoke pipes and the like, on one hand, the exhaust gas temperature can be reduced, on the other hand, the feed water temperature of the boiler can be improved, and the boiler efficiency is greatly improved.
4. The isobaric air chamber can effectively control the temperature of the semi-gasification combustion chamber and the fixed carbon burnout chamber, a small amount of air is supplied to the isobaric air chamber in the semi-gasification combustion chamber, a large amount of fuel volatile components are separated out and fully fill the semi-gasification combustion chamber, the temperature of the semi-gasification combustion chamber is controlled below 800 ℃ and is lower than the ash melting point, and coking is effectively prevented; in the fixed carbon burnout chamber, the isobaric air chamber supplies air uniformly, and the formed fixed carbon is fully burnt out in the area under the action of radiant heat of the rear arch.
5. The boiler is provided with enough heating surfaces, the space of the semi-gasification combustion chamber is large enough, the fuel is fully combusted, the exhaust gas temperature of the boiler is low, the thermal efficiency of the boiler is high, and the generated heat source is continuously supplied to a heat user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic sectional view of the overall structure provided by the present invention;
fig. 2 is a left sectional view of the overall structure provided by the present invention.
Wherein:
01-pot shell; 02-hearth; 03-front arch; 04-rear arch; 041-smoke port; 05-chain grate; 06-a separation wall; 061-air jet; 062-mix the material mouth; 07-a flue; 08-semi-gasification combustion chamber; 09-intensified combustion chamber; 10-fixed carbon burnout chamber; 11-secondary air port; 12-front smoke box; 13-rear smoke box; 14-a threaded smoke tube; 15-a header; 151-water inlet; 16-a downcomer; 17-a convective bank of tubes; 18-isobaric air chamber; 19-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 work belong to the protection scope of the present invention.
Referring to the attached drawings 1-2, the embodiment of the utility model discloses a biomass briquette fuel semi-gasification burning pressure-bearing boiler, include: a boiler shell 01, a hearth 02, a front arch 03, a rear arch 04 and a traveling grate 05; the boiler shell 01 is fixed on the top of the hearth 02; the front arch 03 is fixed at the front end of the hearth 02, the rear arch 04 is fixed at the rear end of the hearth 02 and extends towards the middle part, and the traveling grate 05 is horizontally positioned at the bottom of the hearth 02; also comprises a partition wall 06 and a flue 07;
the partition wall 06 is fixed in the hearth 02 and is positioned between the front arch 03 and the rear arch 04; the front arch 03, the partition wall 06 and the hearth 02 enclose a semi-gasification combustion chamber 08; the rear arch crown wall 04, the partition wall 06 and the hearth 02 enclose a strengthened combustion chamber 09; the bottom wall of the rear arch 04 and the hearth 02 enclose a fixed carbon burnout chamber 10; the partition wall 06 is provided with a gas jet 061 communicating the semi-gasification combustion chamber 08 and the intensified combustion chamber 09; the rear arch 04 is provided with a smoke port 041 communicated with the intensified combustion chamber 09 and the fixed carbon burnout chamber 10; a gap exists between the bottom end of the isolation wall 06 and the top surface of the chain grate 05, and a material homogenizing port 062 is formed;
the flue 07 is communicated with the intensified combustion chamber 09 and the fixed carbon burnout chamber 10, and is used for discharging flue gas after combustion.
It should be noted that the partition wall 06 includes a lower wall and an upper wall, a material homogenizing port 062 is formed between the bottom end of the lower wall and the top surface of the traveling grate 05, and an air jet port 061 is formed in the upper wall.
In order to further optimize the above technical solution, a secondary air port 11 is provided at the air outlet 061.
In order to further optimize the technical scheme, the smoke box also comprises a front smoke box 12, a rear smoke box 13 and a screwed smoke pipe 14; the front smoke box 12 is fixed on the outer wall of the front end of the boiler shell 01 and is communicated with the flue 07; the rear smoke box 13 is fixed on the outer wall of the rear end of the pot shell 01 and is used for discharging smoke; the threaded smoke pipe 14 is fixed inside the boiler shell 01, and two ends of the threaded smoke pipe are respectively communicated with the front smoke box 12 and the rear smoke box 13.
In order to further optimize the technical scheme, the flue 07 is positioned at two sides of the tops of the semi-gasification combustion chamber 08 and the intensified combustion chamber 09 in a splayed shape, one end of the flue 07 is communicated with the intensified combustion chamber 09 and the fixed carbon burnout chamber 10, and the other end is communicated with the front smoke box 12.
In order to further optimize the technical scheme, the system also comprises a header 15, a downcomer 16 and a convection bank 17; the header 15 is positioned at two sides of the top of the traveling grate 05, one end of the header is provided with a water inlet 151, and the other end of the header is communicated with the boiler shell 01; the downcomer 16 is positioned at the rear end of the hearth 02, and two ends of the downcomer are respectively communicated with the boiler shell 01 and the header 15; the top of the convection bank 17 is arranged around the flue 07, and the two ends of the convection bank are respectively communicated with the boiler shell 01 and the header 15.
In order to further optimize the above technical solution, the header 15 has a hollow cylindrical structure, and extends along the front-rear direction of the furnace 02 and penetrates through the furnace 02.
In order to further optimize the technical scheme, a plurality of constant pressure air chambers 18 are uniformly arranged below the traveling grate 05 along the conveying direction of the traveling grate 05.
In order to further optimize the technical scheme, a hopper 19 is fixed at the front inlet of the hearth 02, and the hopper 19 is used for feeding materials to the chain grate 05 in a layered mode.
In order to further optimize the technical scheme, the space volume of the semi-gasification combustion chamber 08 is determined according to the volume of the hearth 02 and the combustion amount so as to ensure that the fuel is fully combusted.
The utility model discloses a theory of operation does:
the fuel is fed into the semi-gasification combustion chamber 08 from the hopper 19 to reach a certain height, and receives the radiation heat of the front arch 03 and the partition wall 06, the isobaric air chamber 18 below the chain grate 06 supplies a small amount of air, the volatile components of the fuel are separated out in a large amount and fills the semi-gasification combustion chamber 08, the temperature of the semi-gasification combustion chamber 08 is controlled below 800 ℃ and is lower than the ash melting point, so that coking is effectively prevented, and the generation of nitrogen oxides is inhibited, the gas generated by the fixed carbon burnout chamber 10 is collected into a gas collecting area through a flue gas port 041, the secondary air matched with the secondary air port 11 enters a gas jet 061, so that the fuel can be fully mixed with the gas, the generated flame has larger diameter and smaller length, can not hit the rear wall of the hearth 02, has no damage to the rear wall, greatly improves the flame fullness, the generated heat can be absorbed more fully, and simultaneously enhances the combustion and eliminates, the flame fullness is fully improved, and the generated heat is better absorbed by the heated surface.
In the process, biomass fuel which is not completely combusted in the space of the semi-gasification combustion chamber 08 is evenly and flatly paved on the traveling grate 05 through the lower part material homogenizing port 062 of the partition wall 06, along with the uniform motion of the traveling grate 05, the constant pressure air chamber 18 is matched for uniform air supply, under the action of radiant heat of the rear arch 04, formed fixed carbon is fully combusted in the area, and formed high-temperature flue gas flows through the flue gas port 041 of the rear arch 04 and is converged with flue gas ejected from the gas ejection port 041 of the semi-gasification combustion chamber 08 for secondary combustion, and is fully absorbed by the heated surface of the boiler. The process realizes staged combustion, and the produced nitrogen oxide has low concentration and good environmental protection effect.
The flue gas is folded into the flue 07 from the rear end of the hearth 02, collected to the front smoke box 12, flows through the heated surface of the threaded smoke pipe 14, is introduced into the economizer from the rear smoke box 13, passes through the dust remover and the induced draft fan, and is exhausted to the atmosphere through the chimney.
Enough heating surfaces are arranged in the boiler, the space of the semi-gasification combustion chamber 08 is large enough, fuel is fully combusted, the exhaust gas temperature of the boiler is low, the thermal efficiency of the boiler is high, and the generated heat source is continuously supplied to a heat user.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A biomass briquette fuel semi-gasification combustion pressure-bearing boiler comprises: a boiler shell (01), a hearth (02), a front arch (03), a rear arch (04) and a traveling grate (05); the pot shell (01) is fixed at the top of the hearth (02); the front arch (03) is fixed at the front end of the hearth (02), the rear arch (04) is fixed at the rear end of the hearth (02) and extends towards the middle part, and the traveling grate (05) is horizontally positioned at the bottom of the hearth (02); the device is characterized by also comprising a partition wall (06) and a flue (07);
the partition wall (06) is fixed in the hearth (02) and is positioned between the front arch (03) and the rear arch (04); the front arch (03), the partition wall (06) and the hearth (02) enclose a semi-gasification combustion chamber (08); the top wall of the rear arch (04), the partition wall (06) and the hearth (02) enclose a strengthened combustion chamber (09); the bottom wall of the rear arch (04) and the hearth (02) enclose a fixed carbon burnout chamber (10); the partition wall (06) is provided with a gas jet (061) for communicating the semi-gasification combustion chamber (08) with the intensified combustion chamber (09); the rear arch (04) is provided with a smoke port (041) for communicating the intensified combustion chamber (09) with the fixed carbon burnout chamber (10); a gap is formed between the bottom end of the isolation wall (06) and the top surface of the chain grate (05) to form a material homogenizing port (062);
the flue (07) is communicated with the intensified combustion chamber (09) and the fixed carbon burnout chamber (10) and is used for discharging flue gas after combustion.
2. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 1, wherein a secondary air port (11) is arranged at the air injection port (061).
3. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 1, further comprising a front smoke box (12), a rear smoke box (13) and a threaded smoke pipe (14); the front smoke box (12) is fixed on the outer wall of the front end of the boiler shell (01) and is communicated with the flue (07); the rear smoke box (13) is fixed on the outer wall of the rear end of the boiler shell (01) and is used for discharging smoke; the threaded smoke pipe (14) is fixed inside the boiler shell (01), and two ends of the threaded smoke pipe are respectively communicated with the front smoke box (12) and the rear smoke box (13).
4. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 3, wherein the flue (07) is splayed and is positioned at two sides of the top of the semi-gasification combustion chamber (08) and the reinforced combustion chamber (09), one end of the flue (07) is communicated with the reinforced combustion chamber (09) and the fixed carbon burnout chamber (10), and the other end is communicated with the front smoke box (12).
5. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to any one of claims 1-4, further comprising a header (15), a downcomer (16) and a convection bank (17); the header (15) is positioned at two sides of the top of the traveling grate (05), one end of the header is provided with a water inlet (151), and the other end of the header is communicated with the boiler shell (01); the downcomer (16) is positioned at the rear end of the hearth (02), and two ends of the downcomer are respectively communicated with the boiler shell (01) and the header (15); the top of the convection bank (17) surrounds the flue (07), and the two ends of the convection bank are respectively communicated with the boiler shell (01) and the header (15).
6. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 5, wherein the header (15) is of a hollow cylindrical structure, extends along the front-back direction of the furnace (02), and penetrates through the furnace (02).
7. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 1, wherein a plurality of isobaric air chambers (18) are uniformly arranged below the traveling grate (05) along the conveying direction of the traveling grate (05).
8. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 1, wherein a hopper (19) is fixed at the inlet of the front end of the hearth (02), and the hopper (19) is used for feeding materials to the traveling grate (05) in a layered manner.
9. The biomass briquette fuel semi-gasification combustion pressure-bearing boiler according to claim 1, wherein the space volume of the semi-gasification combustion chamber (08) is determined according to the volume of the hearth (02) and the combustion amount so as to ensure the sufficient fuel combustion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920852473.2U CN210568368U (en) | 2019-06-06 | 2019-06-06 | Biomass briquette fuel semi-gasification combustion pressure-bearing boiler |
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| CN201920852473.2U CN210568368U (en) | 2019-06-06 | 2019-06-06 | Biomass briquette fuel semi-gasification combustion pressure-bearing boiler |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160038A (en) * | 2019-06-06 | 2019-08-23 | 海伦市利民节能锅炉制造有限公司 | A kind of half gasification, and combustion bearing boiler of biomass molding fuel |
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2019
- 2019-06-06 CN CN201920852473.2U patent/CN210568368U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160038A (en) * | 2019-06-06 | 2019-08-23 | 海伦市利民节能锅炉制造有限公司 | A kind of half gasification, and combustion bearing boiler of biomass molding fuel |
| CN110160038B (en) * | 2019-06-06 | 2024-08-27 | 海伦市利民节能锅炉制造有限公司 | Semi-gasification combustion pressure-bearing boiler for biomass briquette |
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Denomination of utility model: A pressure boiler for semi gasification combustion of biomass briquette fuel Effective date of registration: 20220509 Granted publication date: 20200519 Pledgee: Industrial Bank Co.,Ltd. Harbin Branch Pledgor: HAILUN LIMIN ENERGY SAVING BOILER MANUFACTURING Co.,Ltd. Registration number: Y2022230000014 |
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Granted publication date: 20200519 Pledgee: Industrial Bank Co.,Ltd. Harbin Branch Pledgor: HAILUN LIMIN ENERGY SAVING BOILER MANUFACTURING Co.,Ltd. Registration number: Y2022230000014 |