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Wood waste burner system

阅读:332发布:2022-01-17

专利汇可以提供Wood waste burner system专利检索,专利查询,专利分析的服务。并且The present invention provides a system by means of which waste wood, as well as the fumes emitted by veneer being dried, are burned in such a manner as to basically accomplish two things, namely, provide large amounts of heat energy that was formerly wasted and, secondly, substantially reduce the emission of pollutants into the atmosphere. The system finds particular application to the lumber mill industry.,下面是Wood waste burner system专利的具体信息内容。

1. A system useful in the lumber mill industry for burning the waste wood obtained from the processing of lumber and the combustible fumes emitted from the lumber when it is dried in a dryer, said system thereby constituting an additional source of heat energy and effectively combatting pollution of the atmosphere, said system comprising: apparatus for comminuting the waste wood to produce a dry powdery wood fuel; a burner having first and second chambers to which said wood fuel and the fumes are respectively fed, said burner including first means for combusting said wood fuel in said first chamber, second means for passing the products of said combustion to said second chamber wherein it mixes with the fumes fed thereto, and third means for combusting said mixture in said second chamber; a separator coupled to receive the products of combustion out of said second chamber, said separator including means that causes said products of combustion to move in such a manner as to produce a centrifuge action that is effective to separate out impurities therefrom, whereby a hot output gas that is substantially free of polluting ingredients is produced, said separator including additional means to channel a portion of said output gas to the dryer to dry the lumber therein and to vent the remainder thereof to atmosphere; fourth means for suspending said wood fuel in a stream of air and for feeding said air-suspended wood fuel to said first chamber; and fifth means for sucking the fumes out from the dryer and feeding them to said second chamber.
2. The system defined in claim 1 wherein said apparatus includes a high-pressure air line for transporting the raw waste wood; a first cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism including first means for separating the air from the wood, and second means for thereafter feeding the wood to a shaker screen mechanism; a shaker screen mechanism for separating the fine particles of wood from the coarser pieces, said shaker screen mechanism including third means for discharging said fine wood particles into said air line for pneumatic conveyance to a second cyclone and rotary feeder mechanism, and fourth means for conveying said coarse pieces of wood to a pulverator; a pulverator for comminuting said coarse pieces of wood to produce fine particles thereof, said pulverator including fifth means for conveying said fine particles of wood back to said shaker screen mechanism which, in turn, discharges them by means of said third means into said air line for conveyance to said second cyclone and rotary feeder mechanism; a second cyclone and rotary feeder mechanism including sixth means for separating the air from said fine particles of wood, and seventh means for thereafter discharging said fine particles of wood into a storage bin; and a storage bin wherein said fine particles of wood are stored before being fed as wood fuel to said burner.
3. The system defined in claim 1 wherein said burner includes a deflector unit coupled at its input end to said air line and storage bin to receive wood fuel suspended in air therefrom and coupled at its output end to said first chamber, said deflector unit including a plurality of dispersion vanes mounted at its input end and positioned at such an angle as to cause said air and wood fuel to move in a counterclockwise manner as it flows therethrough toward the output end of said deflector unit, and including deflector apparatus mounted at its output end to deflect said air and wood fuel outwardly toward the outer walls of said first chamber.
4. The system defined in claim 1 wherein said means in said separator includes a hollow and truncated conical section that is open at its apex and base, said conical section being mounted inside said separator with its apex vertically beneath its base, a plurality of louvres mounted in a circular manner above the base of said conical section, and an outlet duct mounted substantially at the center of said louvre arrangement and extending through the roof of said separator, said duct being open at its two ends; said separator including input apparatus by means of which the products of combustion out of said second chamber are directed in a counterclockwise movement around the apex of said conical section and upwards therealong.
5. The system defined in claim 1 wherein said apparatus includes a high-pressure air line for transporting the raw waste wood; a first cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism including first means for separating the air from the wood, and second means for thereafter feeding the wood to a shaker screen mechanism; a shaker screen mechanism for separating the fine particles of wood from the coarser pieces, said shaker screen mechanism including third means for discharging said fine wood particles into said air line for pneumatic conveyance to a second cyclone and rotary feeder mechanism, and fourth means for conveying said coarse pieces of wood to a pulverator; a pulverator for comminuting said coarse pieces of wood to produce fine particles thereof, said pulverator including fifth means for conveying said fine particles of wood back to said shaker screen mechanism which, in turn, discharges them by means of said third means into said air line for conveyance to said second cyclone and rotary feeder mechanism; a second cyclone and rotary feeder mechanism including sixth means for separating the air from said fine particles of wood, and seventh means for thereafter discharging said fine particles of wood into a storage bin; and a storage bin wherein said fine particles of wood are stored before being fed as wood fuel to said burner; and wherein said burner includes a deflector unit coupled at its input end to said air line and storage bin to receive wood fuel suspended in air therefrom and coupled at its output end to said first chamber, said deflector unit including a plurality of dispersion vanes mounted at its input end and positioned at such an angle as to cause said air and wood fuel to move in a counterclockwise manner as it flows theRethrough toward the output end of said deflector unit, and including deflector apparatus mounted at its output end to deflect said air and wood fuel outwardly toward the outer walls of said first chamber.
6. The system defined in claim 1 wherein said apparatus includes a high-pressure air line for transporting the raw waste wood; a first cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism including first means for separating the air from the wood, and second means for thereafter feeding the wood to a shaker screen mechanism; a shaker screen mechanism for separating the fine particles of wood from the coarser pieces, said shaker screen mechanism including third means for discharging said fine wood particles into said air line for pneumatic conveyance to a second cyclone and rotary feeder mechanism, and fourth means for conveying said coarse pieces of wood to a pulverator; a pulverator for comminuting said coarse pieces of wood to produce fine particles thereof, said pulverator including fifth means for conveying said fine particles of wood back to said shaker screen mechanism which, in turn, discharges them by means of said third means into said air line for conveyance to said second cyclone and rotary feeder mechanism; a second cyclone and rotary feeder mechanism including sixth means for separating the air from said fine particles of wood, and seventh means for thereafter discharging said fine particles of wood into a storage bin; and a storage bin wherein said fine particles of wood are stored before being fed as wood fuel to said burner; and wherein said means in said separator includes a hollow and truncated conical section that is open at its apex and base, said conical section being mounted inside said separator with its apex vertically beneath its base, a plurality of louvres mounted in a circular manner above the base of said conical section, and an outlet duct mounted substantially at the center of said louvre arrangement and extending through the roof of said separator, said duct being open at its two ends; said separator including input apparatus by means of which the products of combustion out of said second chamber are directed in a counterclockwise movement around the apex of said conical section and upwards therealong.
7. The system defined in claim 1 wherein said burner includes a deflector unit coupled at its input end to said air line and storage bin to receive wood fuel suspended in air therefrom and coupled at its output end to said first chamber, said deflector unit including a plurality of dispersion vanes mounted at its input end and positioned at such an angle as to cause said air and wood fuel to move in a counterclockwise manner as it flows therethrough toward the output end of said deflector unit, and including deflector apparatus mounted at its output end to deflect said air and wood fuel outwardly toward the outer walls of said first ehamber; and wherein said means in said separator includes a hollow and truncated conical section that is open at its apex and base, said conical section being mounted inside said separator with its apex vertically beneath its base, a plurality of louvres mounted in a circular manner above the base of said conical section, and an outlet duct mounted substantially at the center of said louvre arrangement and extending through the roof of said separator, said duct being open at its two ends; said separator including input apparatus by means of which the products of combustion out of said second chamber are directed in a counterclockwise movement around the apex of said conical section and upwards therealong.
8. The system defined in claim 1 wherein said apparatus includes a high-pressure air line for transporting the raw waste wood; a first cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism including first means for separating the air from the wood, and second means for thereafter feeding the wood to a shaker screen mechanism; a shaker screen mechanism for separating the fine particles of wood from the coarser pieces, said shaker screen mechanism including third means for discharging said fine wood particles into said air line for pneumatic conveyance to a second cyclone and rotary feeder mechanism, and fourth means for conveying said coarse pieces of wood to a pulverator; a pulverator for comminuting said coarse pieces of wood to produce fine particles thereof, said pulverator including fifth means for conveying said fine particles of wood back to said shaker screen mechanism which, in turn, discharges them by means of said third means into said air line for conveyance to said second cyclone and rotary feeder mechanism; a second cyclone and rotary feeder mechanism including sixth means for separating the air from said fine particles of wood, and seventh means for thereafter discharging said fine particles of wood into a storage bin; and a storage bin wherein said fine particles of wood are stored before being fed as wood fuel to said burner; and wherein said burner includes a deflector unit coupled at its input end to said air line and storage bin to receive wood fuel suspended in air therefrom and coupled at its output end to said first chamber, said deflector unit including a plurality of dispersion vanes mounted at its input end and positioned at such an angle as to cause said air and wood fuel to move in a counterclockwise manner as it flows therethrough toward the output end of said deflector unit, and including deflector apparatus mounted at its output end to deflect said air and wood fuel outwardly toward the outer walls of said first chamber; and wherein said means in said separator includes a hollow and truncated conical section that is open at its apex and base, said conical section being mounted inside said separator with its apex vertically beneath its base, a plurality of louvres mounted in a circular manner above the base of said conical section, and an outlet duct mounted substantially at the center of said louvre arrangement and extending through the roof of said separator, said duct being open at its two ends; said separator including input apparatus by means of which the products of combustion out of said second chamber are directed in a counterclockwise movement around the apex of said conical section and upwards therealong.
9. The system defined in claim 1 wherein said system further includes a first network for metering the amount of wood fuel fed to said burner in accordance with the temperature conditions in said separator, said first network including a first heat-sensitive device mounted in said separator for monitoring the temperature therein, said first device being operable in response to said temperature conditions to produce a first signal corresponding thereto, and a second device included in said fourth means for metering the amount of wood fuel fed to said first chamber in response to said first signal; and wherein said system further includes a second network for metering the amount of hot gas fed to the dryer in accordance with the temperature conditions therein, said second network including a second heat-sensitive device mounted in the dryer for monitoring the temperature therein, said second device being operable in response to said temperature conditions to produce a second signal corresponding thereto, and a damper device mounted between the dryer and said separator, said damper device being operable in response to said second signal to meter the amount of hot gas flowing from said separator to the dryer in accordance with the temperature conditions therein.
10. The system defined in claim 1 wherein said apparatus includes a high-pressure air line for transporting the raw waste wood; a first cyclone and rotary feeder mechanism coupled to said air line, said cyclone and rotary feeder mechanism including first means for separating the air from the wood, and second means for thereafTer feeding the wood to a shaker screen mechanism; a shaker screen mechanism for separating the fine particles of wood from the coarser pieces, said shaker screen mechanism including third means for discharging said fine wood particles into said air line for pneumatic conveyance to a second cyclone and rotary feeder mechanism, and fourth means for conveying said coarse pieces of wood to a pulverator; a pulverator for comminuting said coarse pieces of wood to produce fine particles thereof, said pulverator including fifth means for conveying said fine particles of wood back to said shaker screen mechanism which, in turn, discharges them by means of said third means into said air line for conveyance to said second cyclone and rotary feeder mechanism; a second cyclone and rotary feeder mechanism including sixth means for separating the air from said fine particles of wood, and seventh means for thereafter discharging said fine particles of wood into a storage bin; and a storage bin wherein said fine particles of wood are stored before being fed as wood fuel to said burner; and wherein said burner includes a deflector unit coupled at its input end to said air line and storage bin to receive wood fuel suspended in air therefrom and coupled at its output end to said first chamber, said deflector unit including a plurality of dispersion vanes mounted at its input end and positioned at such an angle as to cause said air and wood fuel to move in a counterclockwise manner as it flows therethrough toward the output end of said deflector unit, and including deflector apparatus mounted at its output end to deflect said air and wood fuel outwardly toward the outer walls of said first chamber; and wherein said means in said separator includes a hollow and truncated conical section that is open at its apex and base, said conical section being mounted inside said separator with its apex vertically beneath its base, a plurality of louvres mounted in a circular manner above the base of said conical section, and an outlet duct mounted substantially at the center of said louvre arrangement and extending through the roof of said separator, said duct being open at its two ends; said separator including input apparatus by means of which the products of combustion out of said second chamber are directed in a counterclockwise movement around the apex of said conical section and upwards therealong; and wherein said system further includes a first network for metering the amount of wood fuel fed to said burner in accordance with the temperature conditions in said separator, said first network including a first heat-sensitive device mounted in said separator for monitoring the temperature therein, said first device being operable in response to said temperature conditions to produce a first signal corresponding thereto, and a second device included in said fourth means for metering the amount of wood fuel fed to said first chamber in response to said first signal; and wherein said system further includes a second network for metering the amount of hot gas fed to the dryer in accordance with the temperature conditions therein, said second network including a second heat-sensitive device mounted in the dryer for monitoring the temperature therein, said second device being operable in response to said temperature conditions to produce a second signal corresponding thereto, and a damper device mounted between the dryer and said separator, said damper device being operable in response to said second signal to meter the amount of hot gas flowing from said separator to the dryer in accordance with the temperature conditions therein.
11. The system defined in claim 3 wherein said deflector apparatus includes first and second conical sections at its forward and rearward ends, respectively, the base of said rearward conical section including structure to smoothly divert said air-suspended wood fuel radially outwardly toward the walls of said first chamber; and wherein said deflector apparatus further includes a defleCtor ring whose inside surface is angled to deflect any air-suspended wood fuel coming into contact with it toward said rearward conical section.
12. The system defined in claim 3 wherein said burner further includes a supplementary air supply arrangement to provide additional air for combustion in said first chamber, said arrangement including a plurality of orifices through the wall of said first chamber and located in a generally helical path therealong, and a channel extending outside the wall of said first chamber and leading to the input end thereof, the air flowing through said orifices moving in a counterclockwise direction in said first chamber.
13. The system defined in claim 3 wherein said burner further includes a supplementary air supply arrangement to provide additional air for combustion in said first chamber, said arrangement including a plurality of orifices through the wall of said first chamber and located in a generally helical path therealong, and a channel extending outside the wall of said first chamber and leading to the input end thereof, the air flowing through said orifices moving in a counterclockwise direction in said first chamber; and wherein said deflector apparatus includes first and second conical sections at its forward and rearward ends, respectively, the base of said rearward conical section including structure to smoothly divert said air-suspended wood fuel radially outwardly toward the walls of said first chamber; and wherein said deflector apparatus further includes a deflector ring whose inside surfact is angled to deflect any air-suspended wood fuel coming into contact with it toward said rearward conical section.
14. The system defined in claim 4 wherein said separator includes a box that is coupled through an opening therein to the apex of said conical section, said separator further including structural means to cause the entering hot gases to flow around and up along said conical section in a counterclockwise direction and at an ever-increasing speed, through said louvres and down into the hollow of said conical section to produce a centrifuge action therein that separates out incombustible ingredients mixed with the hot gases, said ingredients falling through the apex of said conical section into said box.
15. The system defined in claim 11 wherein said separator includes a box that is coupled through an opening therein to the apex of said conical section, said separator further including structural means to cause the entering hot gases to flow around and up along said conical section in a counterclockwise direction and at an ever-increasing speed, through said louvres and down into the hollow of said conical section to produce a centrifuge action therein that separates out incombustible ingredients mexed with the hot gases, said ingredients falling through the apex of said conical section into said box.
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