CN116772228A - Fire-retardant device for smoke purification of combined biomass boiler - Google Patents
Fire-retardant device for smoke purification of combined biomass boiler Download PDFInfo
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- CN116772228A CN116772228A CN202310898564.0A CN202310898564A CN116772228A CN 116772228 A CN116772228 A CN 116772228A CN 202310898564 A CN202310898564 A CN 202310898564A CN 116772228 A CN116772228 A CN 116772228A
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- biomass boiler
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 61
- 239000002028 Biomass Substances 0.000 title claims abstract description 46
- 239000000779 smoke Substances 0.000 title claims abstract description 34
- 238000000746 purification Methods 0.000 title claims abstract description 30
- 239000000428 dust Substances 0.000 claims abstract description 155
- 238000001914 filtration Methods 0.000 claims abstract description 99
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000003546 flue gas Substances 0.000 claims abstract description 27
- 210000001503 joint Anatomy 0.000 claims description 21
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 20
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 20
- 241001330002 Bambuseae Species 0.000 claims description 20
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 20
- 239000011425 bamboo Substances 0.000 claims description 20
- 239000007789 gas Substances 0.000 claims description 19
- 238000007790 scraping Methods 0.000 claims description 15
- 230000000903 blocking effect Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 230000000670 limiting effect Effects 0.000 claims description 8
- 230000009970 fire resistant effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 13
- 238000011084 recovery Methods 0.000 abstract description 2
- 230000000151 anti-reflux effect Effects 0.000 abstract 1
- 230000000979 retarding effect Effects 0.000 description 22
- 238000005507 spraying Methods 0.000 description 11
- 238000002347 injection Methods 0.000 description 9
- 239000007924 injection Substances 0.000 description 9
- 238000003032 molecular docking Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000002485 combustion reaction Methods 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000003670 easy-to-clean Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention discloses a fire-retardant device for purifying smoke of a combined biomass boiler, which relates to the technical field of smoke purification of biomass boilers and comprises a large box body, wherein one side of the inner part of the large box body is provided with a filtering chamber. This fire retardant device is used in combination formula biomass boiler flue gas purification, through adopting multilayer air current distribution device, through changing the air current direction, let spark and air current distribution board collide, reach the purpose of putting out a fire, improve the efficiency of putting out a fire, carry out double helix guide to the dust through the double helix chamber, play the anti-reflux effect, can also play fine anti-blocking effect, make the inside dust height of dust collection tube evenly promote, realize the clearance to the fire-blocking net bottom, eliminate the clearance dead angle, realize the continuous function of putting out a fire to the spark, realize the fire-blocking net to the regulation of the area size that blocks of the spark that does not put out, and to the change of the effect of putting out a fire to the spark, realize the complete recovery to the dust, clear up each corner in the two filter chambers automatically.
Description
Technical Field
The invention relates to the technical field of biomass boiler flue gas purification, in particular to a fire-retardant device for combined biomass boiler flue gas purification.
Background
The biomass boiler is a kind of boiler, the boiler using biomass energy as fuel is called biomass boiler, and is divided into biomass steam boiler, biomass hot water boiler, biomass hot blast stove, biomass heat conduction oil boiler, vertical biomass boiler, horizontal biomass boiler and the like, the boiler adopts combustion equipment which is most suitable for biomass fuel combustion, namely a reciprocating grate, the boiler has larger space compared with the traditional boiler hearth in structural design, and simultaneously, very reasonable secondary air is arranged, so that a large amount of volatile matters which are instantaneously separated out during biomass fuel combustion are fully combusted, however, when the existing biomass boiler is used for processing biomass boiler flue gas, the flue gas fire-retardant device arranged on the existing biomass boiler has potential safety hazards of easy ignition, and the subsequent service life of a purification system is seriously influenced; in addition, the existing boiler flue gas purification fire-retarding device is used for carrying out fire retarding by utilizing a fire-retarding device which generates centrifugal force by utilizing whirlwind, the efficiency of extinguishing sparks is low, and secondary combustion is easy, and although the fire-retarding device with the built-in multi-layer wire mesh is adopted, the wire mesh Kong Xixiao in the device is extremely easy to block, and dust under interception is not easy to clean.
Disclosure of Invention
In order to achieve the above purpose, the invention is realized by the following technical scheme: the fire-retardant device for the combined biomass boiler flue gas purification comprises a large box body, wherein a first filtering chamber is formed in one side of the inner part of the large box body, an air inlet is formed in the top of the large box body and is communicated with the inner side of the first filtering chamber, an air flow distribution plate is inserted into the inner side of the first filtering chamber in a linear array and used for guiding smoke dust in a stranding mode, the air flow direction is changed, sparks collide with the air flow distribution plate, the fire-extinguishing purpose is achieved, one end of the air flow distribution plate is inserted onto the inner side wall of the first filtering chamber, the other end of the air flow distribution plate penetrates through the inner side wall of the first filtering chamber and extends to the outer side, a steel bracket is fixedly arranged at the bottom of the large box body through bolts, a second filtering chamber is formed in the other side of the inner part of the large box body, the first filtering chamber and the second filtering chamber are separated by a partition plate positioned in the middle of the inner side of the large box body, one side air outlet of the large box body far away from the first filtering chamber is communicated with the inner side of the second filtering chamber;
the splayed guide plate is embedded between the inner side walls of the first filtering chamber and is arranged at the bottom and used for gathering and guiding smoke dust and guiding the smoke dust into the dust collecting hopper for dust collection;
the dust collection assembly is assembled and arranged in the middle of the top end of the steel bracket and is used for collecting smoke dust;
the fire-retarding component is arranged on the inner side of the second filtering chamber and used for blocking the non-extinguished sparks;
the screen ash removing pipe fitting is arranged on the outer side of the large box body and positioned on the left outer side wall and the right outer side wall of the second filtering chamber and used for guiding the high-pressure air flow to the inner side of the second filtering chamber, the screen ash removing pipe fitting comprises two air pressure pipes arranged on the left outer side wall and the right outer side wall of the second filtering chamber, the number of the air pressure pipes is two, a mounting ring seat is sleeved on the outer surface of each air pressure pipe, and a ring pipe ash removing valve is sleeved on the outer surface of each air pressure pipe.
Preferably, scraping holes are formed in the inner side wall of the first filtering chamber, the scraping holes correspond to the airflow distribution plates, dust on the surface of the airflow distribution plates is removed, splayed grooves are symmetrically formed in the inner side wall of the first filtering chamber, and the splayed guide plates are embedded with the first filtering chamber through the splayed grooves, so that the caliber of dust entering the inner side of the dust collecting hopper is reduced.
Preferably, the dust collection assembly comprises a dust collection hopper assembled in the middle of the top end of the steel support, a butt joint barrel is inserted into the bottom of the dust collection hopper and used for conducting spiral guiding on dust, and a dust collection barrel is installed at the bottom of the butt joint barrel and used for storing the dust.
Preferably, the inside of the butt joint section of thick bamboo is double helix form and has seted up double helix chamber, and is linked together with the inboard of the section of thick bamboo that gathers dust, prevents that the dust that gets into the inside of the section of thick bamboo that gathers dust from being rewound, the equal fixedly connected with skirt band board of bottom avris of the butt joint section of thick bamboo and the top avris of the section of thick bamboo that gathers dust, install the buckle on the skirt band board of butt joint section of thick bamboo bottom avris, and symmetrical connection is on the avris, and quantity is two.
Preferably, the notch is formed in the skirt band plate on the side of the top of the dust collection barrel, the notch is symmetrically formed in the side position, the buckle plate can penetrate through the notch to be clamped on the skirt band plate on the side of the top of the dust collection barrel, the locking plate is arranged on the skirt band plate on the side of the top of the dust collection barrel and is symmetrically connected to the side, the skirt band plate is arranged on the vertical line in the middle of the two notches, the butt joint barrel is matched with the dust collection barrel through the buckle plate, the notch and the locking plate to be buckled and installed, wherein the locking plate is used for limiting and blocking the torsion range of the buckle plate, and the butt joint barrel and the dust collection barrel are tightly buckled and are not loosened.
Preferably, the fire-retardant subassembly is including articulating the fire-retardant net on filtering two indoor lateral walls, has four altogether, is bilateral symmetry and mutual dislocation distribution on filtering two indoor lateral walls, the vaulting pole is all installed to the both sides of fire-retardant net, the one end of vaulting pole is articulated with the bottom avris of fire-retardant net, and other end slidable mounting is on filtering two indoor lateral walls, install spacing wall ring on filtering two indoor lateral walls, and be located the both sides of fire-retardant net and be the symmetry setting.
Preferably, the DD motor is installed to the non-articulated end of vaulting pole and fire-retardant net, guide rail groove has been seted up between the inside wall of spacing wall ring and two rooms of filtration, the ring channel has been seted up in the middle part of spacing wall ring in a penetrating way, and is linked together with guide rail groove, DD motor passes through ring channel and guide rail groove cooperation and spacing wall ring slidable mounting, the turbine is installed to the output of DD motor, the worm is installed in one side meshing of turbine, just worm global rotation installs in the guide rail inslot side, realizes that the fire-retardant net blocks area and effect to the spark that does not extinguish.
Preferably, the outer surface of the annular pipe ash removal valve is fixedly connected with a double-right-angle conduit, one end of the double-right-angle conduit, which is far away from the annular pipe ash removal valve, is provided with a small motor, the small motor is embedded and installed on the left side wall and the right side wall of the second indoor side of the filter, one end of the small motor, which is far away from the double-right-angle conduit, is connected with an air passage pipeline, the air passage pipeline is installed above the fire-retarding net of the second indoor side of the filter in an erection mode, and the air passage pipeline is installed in a combined mode with the large box body through the small motor.
Preferably, the outer surface of the gas path pipeline is provided with gas spraying holes in a linear array, two rows of gas spraying holes are arranged, and in the transverse section, the included angle between the axes of the two rows of gas spraying holes is ninety degrees, so that the gas spraying angle of the gas spraying holes can be adjusted, and the spraying cleaning position of the gas spraying holes on the surface of the fire-retardant net is changed.
Preferably, a communicating pipe is connected to the outer surface between the two air pressure pipes, and a high-pressure air inlet pipe is connected to the bottom between the two air pressure pipes.
The invention provides a fire-retardant device for purifying smoke of a combined biomass boiler, which has the following beneficial effects:
1. according to the combined fire-retardant device for biomass boiler flue gas purification, a multi-layer airflow distribution device is adopted, and a spark collides with an airflow distribution plate by changing the airflow direction, so that the aim of extinguishing fire is fulfilled; the fire-retarding nets are divided into multiple layers, and the included angle between each fire-retarding net and the inner wall surface of each filtering chamber is adjusted to be 60 degrees, so that the fire-retarding efficiency is improved, and meanwhile, dust intercepted conveniently falls into the collecting box; in order to prevent the fire-retarding net from blocking the screen gaps, compressed air pulse is adopted to clean the dust, and the surface of the screen is sprayed and cleaned.
2. This fire retardant device is used in combination formula biomass boiler flue gas purification carries out the double helix guide through the double helix chamber to the dust, can be with the dust unidirectional collection to gather dust in the section of thick bamboo, can prevent that the dust that gets into the section of thick bamboo inside that gathers dust from being rolled up, prevent that dust suck-back phenomenon from taking place, and simple structure, the setting through this kind of anti-return structure of double helix chamber, not only play the anti-return effect, can also play fine anti-blocking effect, the trompil scope is big, the aperture orbit presents spiral torsion form, can not carry out the secondary to the dust that has been collected in the section of thick bamboo inside that gathers dust and roll up the four or disturbance, can make the dust steadily and evenly spread in the section of thick bamboo that gathers dust, make the inside dust height evenly promote of the section of thick bamboo that gathers dust, prevent that the position dust height is piled up too fast and reverse problem that blocks the double helix chamber from appearing.
3. This fire retardant device is used in combination formula biomass boiler flue gas purification drives DD motor down through the meshing transmission of turbine and worm, can warp the free end of fire retardant network to the top of big box, until the top of left fire retardant network pushes up the bottom of the fire retardant network on the right side, not only can realize the fire retardant network to the adjustment of the blocking area size of the spark that does not extinguish, and the change to the spark effect of extinguishing, can also seal the inboard of two rooms of filtration, then the dust of rethread silk screen deashing pipe fitting to the inside position and the surface of blocking of fire retardant network is cleared up, not only can avoid the dust to flow through the air outlet completely, still can change the jet direction of jet orifice to the bottom of the fire retardant network of its top through the small motor clearance, realize the clearance to the fire retardant network bottom, eliminate the clearance dead angle.
4. This fire retardant device for combination formula biomass boiler flue gas purification exposes the outside of filtering a room side wall board through scraping the jack for the one end of air current distribution board and provides the cartridge space, make the air current distribution board can be pulled out by a filtration room side through scraping the jack to through scraping the scraping effect of jack to the air current distribution board, effectively get rid of the dust on air current distribution board surface, and make the dust guide to the dust hopper in through the splayed baffle, then pass through scraping the jack again with air current distribution board cartridge in a filtration room inboard, continue to carry out constantly changing to the direction of delivery of smoke and dust, realize putting out the fire function to the continuation of spark.
5. According to the fire-retardant device for the smoke purification of the combined biomass boiler, after the smoke containing the sparks is conveyed out of the biomass boiler, the smoke enters the first filtering chamber through the air inlet, and the flow direction of the gas is changed under the action of the gas flow distribution plate after the smoke enters the first filtering chamber, so that the sparks in the smoke collide with the gas flow distribution plate, and the aim of extinguishing the fire is achieved; the extinguished sparks move downwards along the airflow direction to reach the dust hopper, and the airflow direction is changed, so that most dust particles are collected, namely, the dust is uniformly collected in the dust collection cylinder. The non-extinguishing sparks and smoke enter the two filter chambers along with the airflow. The non-extinguished sparks are completely extinguished by the collision of the four fire-retarding nets again.
6. This fire retardant device for combination formula biomass boiler flue gas purification drives the turbine through DD motor and carries out clockwise engagement and anticlockwise engagement with the worm for the one end that the fire retardant net was kept away from to the vaulting pole can be at the inboard automatic elevating movement of doing of guide rail groove under the vertical guide in guide rail groove, from this the contained angle size that the fire retardant net was propped up by the vaulting pole from filtering two room lateral wall faces, with this the contained angle size that comes between each fire retardant net and the two room lateral wall faces of filtration of control, realizes the adjustment of the fire retardant net to the blocking area size of the spark that does not extinguish, and the change to the spark effect of extinguishing.
7. According to the combined type fire retarding device for flue gas purification of the biomass boiler, high-pressure air flows are sprayed out through the air spraying holes in a mode of presenting two exhaust columns with ninety degrees, under the rotary adjusting effect of a small motor driving an air path pipeline right above a fire retarding net, the two rows of air spraying holes can form an air column directly and vertically sprayed on the surface of the fire retarding net, and can also form an air column parallel to the fire retarding net, so that dust on the surface of the fire retarding net is blown on one hand, on the other hand, the blocked part on the surface of the fire retarding net is dredged, on the other hand, the blown dust can be intercepted, blocked and guided into a dust hopper at an inclined lower side in time, all dust can be guided into the dust hopper, the dust is prevented from entering a next purification system, the running load of the next purification system is reduced, and meanwhile, the dust cleaning function of a fire retarding net blocked by a fire retarding component is guaranteed by a wire mesh dust cleaning pipe.
8. This fire retardant device is used in combination formula biomass boiler flue gas purification drives the rotation regulation of gas circuit pipeline directly over the fire retardant network through little motor, can also clear up the dust that adheres to on the inside wall face of two rooms of filtration, not only is limited to the clearance to fire retardant network front surface dust, can also clear up each corner in two rooms of filtration voluntarily.
Drawings
FIG. 1 is a schematic view of the external structure of a fire-retardant device for flue gas purification of a combined biomass boiler;
FIG. 2 is a schematic diagram of the internal structure of the fire-retardant device for purifying the flue gas of the combined biomass boiler;
FIG. 3 is a schematic diagram of an assembled structure of a docking cylinder and a dust collection cylinder of the present invention;
FIG. 4 is a schematic diagram of an explosion structure of a docking cylinder and a dust collection cylinder of the present invention;
FIG. 5 is a top plan view of the docking pod of the present invention;
FIG. 6 is a schematic view of the bottom structure of the docking pod of the present invention;
FIG. 7 is a schematic diagram of an assembled structure of a fire-blocking net and a two-chamber filter according to the present invention;
FIG. 8 is a schematic view of the assembled structure of the worm wheel and worm of the present invention;
FIG. 9 is a schematic diagram of the overall structure of the wire mesh ash removing pipe fitting of the invention;
FIG. 10 is a schematic view of the partial structure of the gas path piping and gas injection holes of the present invention.
In the figure: 1. an air inlet; 2. filtering the first chamber; 3. an air flow distribution plate; 4. a dust collection assembly; 41. a dust hopper; 42. a butt joint barrel; 43. a dust collection cylinder; 44. a double helical cavity; 45. a skirt band plate; 46. a buckle plate; 47. a notch; 48. a locking plate; 5. a steel bracket; 6. filtering the second chamber; 7. a firestop assembly; 71. fire-retardant net; 72. a brace rod; 73. a limiting wall ring; 74. a DD motor; 75. a guide rail groove; 76. a turbine; 77. a worm; 8. screen ash removing pipe fitting; 81. an air pressure pipe; 82. a mounting ring seat; 83. a ring pipe ash removal valve; 84. a small motor; 85. an air path pipeline; 86. a communicating pipe; 87. a high pressure air inlet pipe; 88. a gas injection hole; 9. an air outlet; 10. a splayed guide plate; 11. scraping the jack; 12. splayed grooves.
Detailed Description
The invention will be described in further detail with reference to the drawings and the detailed description. The embodiments of the invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
In a first embodiment, as shown in fig. 1 to 10, the present invention provides the following technical solutions: the combined fire-retardant device for biomass boiler flue gas purification comprises a large box body, wherein one side of the inner part of the large box body is provided with a first filtering chamber 2, the top of the large box body is provided with an air inlet 1, the air inlet is communicated with the inner side of the first filtering chamber 2, the inner side of the first filtering chamber 2 is provided with an air flow distribution plate 3 in a linear array in a inserted mode and used for guiding smoke dust in a stranding mode, the air flow direction is changed, sparks collide with the air flow distribution plate 3 to achieve the aim of fire extinguishment, one end of the air flow distribution plate 3 is inserted on the inner side wall of the first filtering chamber 2, the other end of the air flow distribution plate penetrates through the inner side wall of the first filtering chamber 2 and extends to the outer side, the bottom of the large box body is fixedly provided with a steel bracket 5 through bolts, the other side of the inner part of the large box body is provided with a second filtering chamber 6, the first filtering chamber 2 and the second filtering chamber 6 are separated by a partition plate positioned in the middle of the inner side of the large box body, one side air outlet 9 of the large box body far away from the first filtering chamber 2 is communicated with the inner side of the second filtering chamber 6;
a splayed guide plate 10 is embedded between the inner side walls of the first filtering chamber 2 and is arranged at the bottom and used for gathering and guiding smoke dust and guiding the smoke dust into a dust collecting hopper 41 for dust collection;
the dust collection assembly 4 is assembled and mounted in the middle of the top end of the steel bracket 5 and used for collecting smoke dust;
a fire-retarding assembly 7, the fire-retarding assembly 7 is installed inside the second filtering chamber 6 for retarding the non-extinguished sparks;
the screen ash removing pipe fitting 8 is arranged on the outer side of the large box body and is positioned on the left outer side wall and the right outer side wall of the second filtering chamber 6 and used for guiding the high-pressure air flow to the inner side of the second filtering chamber 6, the screen ash removing pipe fitting 8 comprises two air pressure pipes 81 arranged on the left outer side wall and the right outer side wall of the second filtering chamber 6, the number of the air pressure pipes is two, a mounting ring seat 82 is sleeved on the outer surface of each air pressure pipe 81, a ring pipe ash removing valve 83 is sleeved on the outer surface of each air pressure pipe 81 and is connected with an electric control system and used for controlling the circulation and closing of the high-pressure air flow.
The scraping holes 11 are formed in the inner side wall of the first filtering chamber 2 and correspond to the airflow distribution plate 3, splayed grooves 12 are symmetrically formed in the inner side wall of the first filtering chamber 2, the splayed guide plates 10 are embedded with the first filtering chamber 2 through the splayed grooves 12, scattered smoke dust is collected and guided through the splayed guide plates 10, the caliber of the smoke dust entering the inner side of the dust collecting hopper 41 can be reduced, and accordingly backflow of the smoke dust in the inner side of the dust collecting hopper 41 is avoided.
When the smoke and dust containing sparks are used, after being conveyed out from the biomass boiler, the smoke and dust enter the first filtering chamber through the air inlet, and the flow direction of the gas is changed under the action of the gas flow distribution plate after the smoke and dust enter the first filtering chamber, so that sparks in the smoke and the gas flow distribution plate collide to achieve the aim of extinguishing fire; the extinguished sparks move downwards along the airflow direction to reach the dust hopper, and the airflow direction is changed, so that most dust particles are collected, namely, the dust is uniformly collected in the dust collection cylinder. The non-extinguishing sparks and smoke enter the two filter chambers along with the airflow. The non-extinguished sparks are completely extinguished by the collision of the four fire-retarding nets again.
Along with the extension of the filtering time, dust on the surface of the fire-retarding net is accumulated more and thicker, at this time, a pulse blowing instruction can be sent out through an electric control system, a ring pipe ash cleaning valve 83 is opened, compressed air blows the surface of the fire-retarding net along an air path pipeline 85, dust on the surface of the fire-retarding net partially falls into a dust hopper, and part of dust is discharged at an air outlet along with air flow and enters a next purifying system, and a fire-retarding device completes a fire-retarding task.
The scraping jack 11 is used for effectively removing dust on the surface of the airflow distribution plate 3 through the scraping effect of the scraping jack 11 on the airflow distribution plate 3 while the inserting space is provided for exposing one end of the airflow distribution plate 3 from the outer side of the side wall plate of the filtering chamber 2, so that the airflow distribution plate 3 can be inserted into the inner side of the filtering chamber 2 through the scraping jack 11, the dust is guided into the dust hopper 41 through the splayed guide plate 10, and then the airflow distribution plate 3 is inserted into the inner side of the filtering chamber 2 through the scraping jack 11 again, and the conveying direction of smoke dust is continuously changed, so that the function of continuously extinguishing sparks is realized.
In a second embodiment, referring to fig. 1 to 8, a dust collection assembly 4 includes a dust collection bucket 41 assembled in the middle of the top end of a steel bracket 5, a docking cylinder 42 is inserted at the bottom of the dust collection bucket 41 for guiding dust in a spiral manner, and a dust collection cylinder 43 is installed at the bottom of the docking cylinder 42 for storing dust; the inside of the butt joint barrel 42 is provided with a double spiral cavity 44 in a double spiral shape, the bottom side of the butt joint barrel 42 and the top side of the dust collection barrel 43 are fixedly connected with a skirt plate 45, pinch plates 46 are arranged on the skirt plate 45 on the bottom side of the butt joint barrel 42 and symmetrically connected on the sides, and the number of the pinch plates is two.
The skirt plate 45 on the side of the top of the dust collection cylinder 43 is provided with a notch 47, the notch 47 is symmetrically arranged at the side position, the buckle plate 46 can penetrate through the notch 47 to be clamped on the skirt plate 45 on the side of the top of the dust collection cylinder 43, the skirt plate 45 on the side of the top of the dust collection cylinder 43 is provided with a locking plate 48, the skirt plate 45 is symmetrically connected to the side and is arranged on a vertical line in the middle of the two notches 47, the butt joint cylinder 42 is matched with the dust collection cylinder 43 through the buckle plate 46, the notch 47 and the locking plate 48 to be buckled and installed, wherein the locking plate 48 is used for limiting and blocking the torsion range of the buckle plate 46, and the butt joint cylinder 42 and the dust collection cylinder 43 are tightly buckled and not loosened.
When the fire extinguishing device is used, the multi-layer airflow distribution device is adopted, and the spark collides with the airflow distribution plate by changing the airflow direction, so that the aim of extinguishing the fire is fulfilled; the fire-retarding nets are divided into multiple layers, and the included angle between each fire-retarding net and the inner side wall surface of the two filtering chambers 6 is adjusted to be 60 degrees, so that the fire-retarding efficiency is improved, and meanwhile, dust intercepted conveniently falls into the collecting box; in order to prevent the fire-retarding net from blocking the screen gaps, compressed air pulse is adopted to clean the dust, and the surface of the screen is sprayed and cleaned.
Carry out double helix guide through double helix chamber 44 to the dust, can be with the unidirectional collection of dust in collection cylinder 43, can prevent that the inside dust of getting into collection cylinder 43 from being rolled up, prevent that dust suck-back phenomenon from taking place, and simple structure, through the setting of this kind of anti-return structure of double helix chamber 44, not only play the anti-return effect, can also play fine anti-blocking effect, the trompil scope is big, the aperture orbit presents spiral torsion form, can not carry out the secondary to the dust that has been collected in collection cylinder 43 and roll up the four-shot or disturbance, can make the dust steadily and evenly spread in collection cylinder 43, make the inside dust height evenly promote of collection cylinder 43, prevent that the position dust height from piling up too fast and reverse the problem that blocks up double helix chamber 44.
And through buckle 46, breach 47 and locking plate 48 cooperation, realize the simple and easy buckle installation of butt joint section of thick bamboo 42 and collection dirt section of thick bamboo 43, can realize collecting dirt section of thick bamboo 43's quick dismantlement and installation, conveniently empty and unified dust of handling.
In a third embodiment, referring to fig. 7 to 10, based on the first to second embodiments, the fire-retardant assembly 7 includes a fire-retardant net 71 hinged on the inner side wall of the second filtering chamber 6, two sides of the fire-retardant net 71 are respectively provided with a supporting rod 72, one end of the supporting rod 72 is hinged with the bottom side of the fire-retardant net 71, the other end is slidably installed on the inner side wall of the second filtering chamber 6, and a limiting wall ring 73 is installed on the inner side wall of the second filtering chamber 6 and is symmetrically arranged on two sides of the fire-retardant net 71; the DD motor 74 is arranged at the non-hinged end of the stay bar 72 and the fire-retarding net 71, the guide rail groove 75 is formed between the limiting wall ring 73 and the inner side wall of the second filtering chamber 6, the annular groove is formed in the middle of the limiting wall ring 73 in a penetrating mode, the DD motor 74 is in sliding installation with the limiting wall ring 73 through the matching of the annular groove and the guide rail groove 75, the turbine 76 is arranged at the output end of the DD motor 74, the worm 77 is installed on one side of the turbine 76 in a meshed mode, the worm 77 is integrally and rotatably installed on the inner side of the guide rail groove 75, the DD motor 74 is driven to move downwards under the meshed transmission of the worm 77, the free end of the fire-retarding net 71 can be tilted towards the top of the large box body until the top of the fire-retarding net 71 on the left side is propped against the bottom of the fire-retarding net 71 on the right side, the inner side of the second filtering chamber 6 can be sealed through the annular groove and the change of the fire-retarding net 71 on the extinguishing area, dust can be cleaned through the dust-retarding net 8, the dust can be completely removed from the bottom of the air-jetting net 71 by the dust-jetting net, and the dust can be completely cleaned up through the dust-jetting net 88.
When the fire retarding assembly 7 is not used, the supporting rod 72 can be completely folded on the inner side of the guide rail groove 75 through the engagement and the cooperation of the worm wheel 76 and the worm 77 by the DD motor 74, so that the fire retarding net 71 is automatically folded and folded on the inner side wall surface of the second filtering chamber 6, the fire retarding net 71 is prevented from being completely exposed in the air in the second filtering chamber 6, and meanwhile, collision prevention protection is provided for safe storage of the fire retarding net 71 on the inner side of the second filtering chamber 6, and the self-storage function of the fire retarding assembly 7 is realized.
The outer surface of the annular pipe ash removal valve 83 is fixedly connected with a double right-angle conduit, one end of the double right-angle conduit, which is far away from the annular pipe ash removal valve 83, is provided with a small motor 84, the small motor 84 is embedded and installed on the left side wall and the right side wall of the inner side of the second filtering chamber 6, one end of the small motor 84, which is far away from the double right-angle conduit, is connected with an air passage pipeline 85, and the air passage pipeline 85 is installed above the fire-blocking net 71 which is installed on the inner side of the second filtering chamber 6 in a erecting manner, and is installed in a combined manner with the large box body through the small motor 84.
The outer surface of the air channel pipeline 85 is provided with air injection holes 88 in a linear array, and two rows of air injection holes 88 are arranged, and in the transverse section, the included angle between the axes of the two rows of air injection holes 88 is ninety degrees; a communicating pipe 86 is connected to the outer surface between the two air pressure pipes 81, and a high-pressure air inlet pipe 87 is connected to the bottom between the two air pressure pipes 81; and the inner side of the second filtering chamber 6 can rotate around the center axis of the air channel pipeline 85 under the rotation drive of the small motor 84, so that the air injection angle of the air injection holes 88 can be adjusted, and the injection cleaning position of the air injection holes 88 on the surface of the fire-retarding net 71 can be changed.
When the fire-resistant net is used, the DD motor 74 drives the turbine 76 to be meshed clockwise and anticlockwise with the worm 77, one end of the supporting rod 72, which is far away from the fire-resistant net 71, can automatically move up and down on the inner side of the guide rail groove 75 under the vertical guide of the guide rail groove 75, so that the included angle of the fire-resistant net 71 supported by the supporting rod 72 from the side wall surface of the filtering second chamber 6 is controlled, the included angle between each fire-resistant net 71 and the side wall surface of the filtering second chamber 6 is controlled, and the adjustment of the blocking area of the fire-resistant net 71 on the non-extinguished sparks and the change of the extinguishing effect of the sparks are realized.
When cleaning the dust on the surface of the fire-retarding net 71, the introduction of the smoke dust into the inner side of the first filtering chamber 2 is stopped; the high-pressure air flow is sprayed out through the air spraying holes 88 in a mode of two exhaust columns with ninety degrees, and under the rotary adjusting action of the small motor 84 driving the air passage pipeline 85 right above the fire retarding net 71, the two rows of air spraying holes 88 can form an air column which is directly and vertically sprayed on the surface of the fire retarding net 71, and can also form an air column which is parallel to the fire retarding net 71, so that dust on the surface of the fire retarding net 71 is blown on one hand, on the other hand, the blocked part of the surface of the fire retarding net 71 is dredged, and on the other hand, the blown dust can be blocked, blocked and guided into the dust hopper 41 obliquely below in time, all the dust can be guided into the dust hopper 41, so that the dust is prevented from entering a next purifying system, the running load of the next purifying system is reduced, and meanwhile, the complete recovery function of the dust is realized while the blocking cleaning function of the fire retarding net 71 blocked by the wire mesh dust cleaning pipe 8 to the fire retarding assembly 7 is ensured.
And the small motor 84 drives the air channel pipeline 85 to rotate and adjust right above the fire-retarding net 71, so that dust attached to the inner side wall surface of the two filter chambers 6 can be cleaned, the dust cleaning device is not only limited to cleaning dust on the front surface of the fire-retarding net 71, but also can automatically clean all corners in the two filter chambers 6.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art and which are included in the embodiments of the present invention without the inventive step, are intended to be within the scope of the present invention. Structures, devices and methods of operation not specifically described and illustrated herein, unless otherwise indicated and limited, are implemented according to conventional means in the art.
Claims (10)
1. Fire retardant device is used in combination formula biomass boiler flue gas purification, including big box, its characterized in that: the smoke dust filtering device is characterized in that a first filtering chamber (2) is formed in one side of the inside of the large box body, an air inlet (1) is formed in the top of the large box body and is communicated with the inner side of the first filtering chamber (2), an air flow distribution plate (3) is inserted into the inner side of the first filtering chamber (2) in a linear array and used for guiding the smoke dust in a splitting mode, one end of the air flow distribution plate (3) is inserted into the inner side wall of the first filtering chamber (2), the other end of the air flow distribution plate penetrates through the inner side wall of the first filtering chamber (2) and extends to the outer side, a steel bracket (5) is fixedly arranged at the bottom of the large box body through bolts, a second filtering chamber (6) is formed in the other side of the inside of the large box body, and one side of the large box body far away from the first filtering chamber (2) is provided with an air outlet (9) and is communicated with the inner side of the second filtering chamber (6);
a splayed guide plate (10) is embedded between the inner side walls of the first filtering chamber (2) and is arranged at the bottom and used for gathering and guiding smoke dust;
the dust collecting assembly (4) is assembled and arranged in the middle of the top end of the steel bracket (5) and is used for collecting smoke dust;
a fire-retarding component (7), wherein the fire-retarding component (7) is arranged at the inner side of the second filtering chamber (6) and is used for blocking the non-extinguished sparks;
the screen ash removing pipe fitting (8), this screen ash removing pipe fitting (8) is installed in the outside of big box, and is located the left and right sides wall of filtering two rooms (6), screen ash removing pipe fitting (8) are including installing pneumatic tube (81) on the left and right sides wall of filtering two rooms (6), the cover is equipped with collar seat (82) on the surface of pneumatic tube (81), still the cover is equipped with ring canal ash removing valve (83) on the surface of pneumatic tube (81).
2. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 1, wherein: scraping holes (11) are formed in the inner side wall of the first filtering chamber (2) and correspond to the airflow distribution plate (3), splayed grooves (12) are symmetrically formed in the inner side wall of the first filtering chamber (2), and the splayed guide plates (10) are embedded with the first filtering chamber (2) through the splayed grooves (12).
3. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 1, wherein: the dust collection assembly (4) comprises a dust collection hopper (41) assembled in the middle of the top end of the steel support (5), a butt joint barrel (42) is inserted into the bottom of the dust collection hopper (41) and used for conducting spiral guiding on dust, and a dust collection barrel (43) is installed at the bottom of the butt joint barrel (42) and used for storing the dust.
4. A fire retardant device for flue gas cleaning of a combination biomass boiler according to claim 3, wherein: the utility model discloses a dust collection device, including a butt joint section of thick bamboo (42), a dust collection section of thick bamboo (43), a butt joint section of thick bamboo (42), a buckle (46) is installed on the skirt board (45) of butt joint section of thick bamboo (42) bottom avris and the top avris of a dust collection section of thick bamboo (43), install on skirt board (45) of butt joint section of thick bamboo (42) bottom avris, and symmetrical connection is on the avris.
5. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 4, wherein: the dust collection device is characterized in that a notch (47) is formed in a skirt band plate (45) on the side of the top of the dust collection barrel (43), the skirt band plate (45) on the side of the top of the dust collection barrel (43) is symmetrically arranged at the side, a locking plate (48) is arranged on the skirt band plate (45) on the side of the top of the dust collection barrel, the skirt band plate is symmetrically connected to the side, the skirt band plate is arranged on a perpendicular line in the middle of the two notches (47), and the butt joint barrel (42) is matched with the dust collection barrel (43) through a buckle plate (46), the notch (47) and the locking plate (48).
6. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 1, wherein: the fire-retardant assembly (7) comprises a fire-retardant net (71) hinged to the inner side wall of the filtering second chamber (6), four fire-retardant nets (71) are symmetrically distributed on the left inner side wall and the right inner side wall of the filtering second chamber (6) in a staggered mode, supporting rods (72) are arranged on two sides of the fire-retardant net (71), one ends of the supporting rods (72) are hinged to the bottom side of the fire-retardant net (71), the other ends of the supporting rods are slidably mounted on the inner side wall of the filtering second chamber (6), limiting wall rings (73) are mounted on the inner side wall of the filtering second chamber (6), and two sides of the fire-retardant net (71) are symmetrically arranged.
7. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 6, wherein: DD motor (74) are installed with the non-articulated end of fire-blocking net (71) to vaulting pole (72), guide rail groove (75) have been seted up between the inside wall of spacing wall ring (73) and two rooms of filtration (6), the middle part of spacing wall ring (73) is run through and is seted up the ring channel, and is linked together with guide rail groove (75), DD motor (74) are through ring channel and guide rail groove (75) cooperation and spacing wall ring (73) slidable mounting, turbine (76) are installed to the output of DD motor (74), worm (77) are installed in the one side meshing of turbine (76), just worm (77) integral rotation installs in guide rail groove (75) inboard.
8. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 1, wherein: the utility model discloses a fire-resistant pipe, including ring canal ash removal valve (83), ring canal ash removal valve (83) are kept away from to two right angle pipes's one end is installed little motor (84), and the gomphosis is installed on the left and right sides wall of filtering two rooms (6) inboard, the one end that two right angle pipes were kept away from to little motor (84) is connected with gas circuit pipeline (85), and erects and install fire-resistant net (71) top setting in filtering two rooms (6) inboard, gas circuit pipeline (85) are installed with big box combination through little motor (84).
9. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 8, wherein: the outer surface of the air channel pipeline (85) is provided with air holes (88) in a linear array, two rows of air holes are arranged, and an included angle between axes where the two rows of air holes (88) are arranged is ninety degrees in the transverse section.
10. The fire retardant device for flue gas purification of a combined biomass boiler according to claim 9, wherein: a communicating pipe (86) is connected to the outer surface between the two air pressure pipes (81), and a high-pressure air inlet pipe (87) is connected to the bottom between the two air pressure pipes (81).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310898564.0A CN116772228B (en) | 2023-07-21 | 2023-07-21 | Fire-retardant device for smoke purification of combined biomass boiler |
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| CN202310898564.0A CN116772228B (en) | 2023-07-21 | 2023-07-21 | Fire-retardant device for smoke purification of combined biomass boiler |
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| CN116772228B CN116772228B (en) | 2024-01-16 |
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| CN116772228B (en) | 2024-01-16 |
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