[특허]Assembly for removing dust from gas stream

Astec, Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Assembly for removing dust from gas stream

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-045/12 B01D-050/00
미국특허분류(USC)	055/337; 055/341.1; 055/356; 055/396; 055/457; 055/467
출원번호	US-0885198 (2004-07-06)
발명자 / 주소	Swanson,Malcolm Hobbs,Andrew
출원인 / 주소	Astec, Inc.
대리인 / 주소	Chambliss, Bahner & Stophel, P.C.
인용정보	피인용 횟수 : 6 인용 특허 : 17

초록
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A dust collection assembly includes a primary collection assembly and a secondary collection assembly and may be connected to a source of gas having dust entrained therein. The primary collection assembly includes a primary duct having an inlet end and an outlet end. A first apparatus is mounted within the primary duct imparts a swirling motion to the gas which enters through the inlet end of the duct. A second apparatus is located downstream of the first apparatus for removing a portion of the dust entrained in the gas. The secondary collection assembly is in fluid communication with the outlet end of the primary collection assembly, and it includes a plurality of filter bags. The dust collection assembly also includes a fan that is in fluid communication with the secondary collection assembly.

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What is claimed is: 1. A dust collection assembly that may be connected to a source of gas having dust entrained therein, said dust collection assembly comprising: (A) a primary collection assembly comprising: (i) a primary duct having: (a) an inlet end; (c) an outlet end; (c) first means mounted within the primary duct near the inlet end for imparting a swirling motion to the gas which enters through the inlet end of the primary duct; (d) second means located downstream of the first means for removing a portion of the dust entrained in the swirling gas; (B) a secondary collection assembly which: (i) is in fluid communication with the outlet end of the primary collection assembly; (ii) includes a plurality of filter bags; (C) a fan that is in fluid communication with the secondary collection assembly. 2. The dust collection assembly of claim 1 wherein the primary collection assembly and the secondary collection assembly are mounted within an enclosure on a frame which comprises a trailer. 3. The dust collection assembly of claim 2: (A) wherein the frame has a longitudinal axis; (B) which includes a pair of curtain walls that are mounted within the enclosure, each of which lies generally within a plane that is substantially perpendicular to the longitudinal axis of the frame, said curtain walls dividing the enclosure into a left section, a right section and an intermediate section; (C) wherein the primary collection assembly is mounted to or within the intermediate section of the enclosure; (D) wherein a portion of the secondary collection assembly is located in the left section of the enclosure and a portion of the secondary collection assembly is located in the right section of the enclosure. 4. The dust collection assembly of claim 2: (A) which includes a track extending across the enclosure; (B) wherein the primary collection assembly is mounted so as to be moveable along the track between a first position in which the inlet end of the primary duct is outside of the enclosure and a second position in which the primary collection assembly is entirely within the enclosure. 5. A dust collection assembly comprising: (A) a primary collection assembly comprising: (i) a primary duct having: (a) a longitudinal axis; (b) an inlet end; (c) an outlet end having an internal diameter; (ii) a plurality of blades that are mounted within the primary duct near the inlet end; (iii) a vortex tube having: (a) a longitudinal axis; (b) an inlet end having with an outside diameter that is less than the internal diameter of the outlet end of the primary duct; (c) an outlet end; said vortex tube being mounted with its inlet end adjacent to the outlet end of the primary duct so as to form an annular gap between the inlet end of the vortex tube and the outlet end of the primary duct; (B) a secondary collection assembly that is in fluid communication with the outlet end of the vortex tube, which secondary collection assembly includes a plurality of filter bags; (C) a fan that is in fluid communication with the secondary collection assembly. 6. The dust collection assembly of claim 5 wherein the vortex tube is mounted with its longitudinal axis substantially coaxial with the longitudinal axis of the primary duct. 7. The dust collection assembly of claim 5 wherein the primary collection assembly includes a dust collection box that is located adjacent to the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct, so that dust passing through the annular gap is retained in the dust collection box. 8. The dust collection assembly of claim 5 wherein the primary duct has an inside diameter at its inlet end that is smaller than the inside diameter at its outlet end. 9. The dust collection assembly of claim 5 which includes an angled ring that is located adjacent to or within the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct. 10. The dust collection assembly of claim 9 wherein the location of the angled ring in the annular gap is adjustable. 11. The dust collection assembly of claim 5: (A) wherein the primary collection assembly and the secondary collection assembly are mounted within an enclosure on a frame which comprises a trailer; (B) which includes a track extending across the enclosure; (C) wherein the primary collection assembly is mounted so as to be moveable along the track between a first position in which the inlet end of the primary duct is outside of the enclosure and a second position in which the primary collection assembly is entirely within the enclosure. 12. The dust collection assembly of claim 11 wherein: (A) the primary collection assembly includes a dust collection box that is located adjacent to the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct, so that dust passing through the annular gap is retained in the dust collection box; (B) the dust collection box remains within the enclosure when the primary collection assembly is in the first position. 13. The dust collection assembly of claim 11 wherein the dust collection box includes an outlet through which dust collected therein may be discharged. 14. The dust collection assembly of claim 11: (A) wherein the frame has a longitudinal axis; (B) which includes a pair of curtain walls that are mounted within the enclosure, each of which lies generally within a plane that is substantially perpendicular to the longitudinal axis of the frame, said curtain walls dividing the enclosure into a left section, a right section and an intermediate section; (C) wherein the primary collection assembly is mounted to or within the intermediate section of the enclosure; (D) wherein a portion of the secondary collection assembly is located in the left section of the enclosure and a portion of the secondary collection assembly is located in the right section of the enclosure. 15. A dust collection assembly comprising: (A) a frame having a longitudinal axis; (B) an enclosure mounted on the frame; (C) a pair of curtain walls that are mounted within the enclosure, each of which lies generally within a plane that is substantially perpendicular to the longitudinal axis of the frame, said curtain walls dividing the enclosure into a left section, a right section and an intermediate section; (D) a primary collection assembly that is mounted to or within the intermediate section of the enclosure, said primary collection assembly comprising: (i) a primary duct having: (a) a longitudinal axis; (b) an inlet end; (c) an outlet end having an internal diameter; (ii) a stationary fan blade assembly that is mounted within the primary duct near the inlet end, said blade assembly being arranged to impart a swirling motion to air entering the inlet end of the primary duct; (iii) a vortex tube having: (a) a longitudinal axis; (b) an inlet end having an outside diameter that is less than the internal diameter of the outlet end of the primary duct; (c) an outlet end; said vortex tube being mounted with its longitudinal axis substantially coaxial with the longitudinal axis of the primary duct and with its inlet end overlying the outlet end of the primary duct so as to form an annular gap between the inlet end of the vortex tube and the outlet end of the primary duct; (F) a secondary collection assembly, a portion of which is located in the left section of the enclosure and a portion of which is located in the right section of the enclosure, which secondary collection assembly: (i) is in fluid communication with the outlet end of the vortex tube; (ii) includes a plurality of filter bags; (G) a fan that is: (i) mounted on the frame; (ii) in fluid communication with the secondary collection assembly. 16. The dust collection assembly of claim 15 wherein the primary collection assembly includes a dust collection box that is located adjacent to the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct, so that dust passing through the annular gap is retained in the dust collection box. 17. The dust collection assembly of claim 15 which includes an angled ring that is located adjacent to or in the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct. 18. The dust collection assembly of claim 15: (A) which includes a track extending across the enclosure in a direction that is substantially perpendicular to the longitudinal axis of the frame; (B) wherein the enclosure includes an opening; (C) wherein the primary collection assembly is mounted on a carriage that is moveable along the track between a first position in which the inlet end of the primary duct extends through the opening in the enclosure and a second position in which the primary collection assembly is entirely within the enclosure. 19. The dust collection assembly of claim 18 wherein: (A) the primary collection assembly includes a dust collection box that is located adjacent to the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct, so that dust passing through the annular gap is retained in the dust collection box; (B) the dust collection box: (i) remains within the enclosure when the primary collection assembly is in the first position; (ii) includes an outlet through which dust collected therein may be discharged. 20. The dust collection assembly of claim 18 wherein: (A) the primary collection assembly includes a dust collection box that is located adjacent to the annular gap between the inlet end of the vortex tube and the outlet end of the primary duct, so that dust passing through the annular gap is retained in the dust collection box; (B) the dust collection box: (i) remains within the enclosure when the primary collection assembly is in the first position; (ii) includes an outlet through which dust collected therein may be discharged; (iii) includes a chute that is in communication with the outlet and which directs dust out of the dust collection box.

이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 6

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Assembly for removing dust from gas stream

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이 특허에 인용된 특허 (17)

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Assembly for removing dust from gas stream

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이 특허에 인용된 특허 (17)

이 특허를 인용한 특허 피인용횟수: 6

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