CN201002890Y - Powder-quantity adjustable pneumatic conveying injection apparatus - Google Patents
Powder-quantity adjustable pneumatic conveying injection apparatus Download PDFInfo
- Publication number
- CN201002890Y CN201002890Y CNU2007200475580U CN200720047558U CN201002890Y CN 201002890 Y CN201002890 Y CN 201002890Y CN U2007200475580 U CNU2007200475580 U CN U2007200475580U CN 200720047558 U CN200720047558 U CN 200720047558U CN 201002890 Y CN201002890 Y CN 201002890Y
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- blanking tube
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Abstract
The utility model relates to an adjusting powder air transport spraying device which consists of an inclining fall material tube system, an upper bear sealing system, a lower bear sealing system, a screw conveying powder system and a horizontal air transport spraying apparatus. The rotating speed of a screw in the fall material tube is adjusted to match with the horizontal air transport, the accurate control of conveying the powder quantity and effective avoidance of blockage of the powder at the port of the fall material tube, which guarantees the homogenization of the powder conveying. Simultaneously, the structural matching of the fall material tube, the screw, the sealing sleeve and the sealing of bearing guarantees the tightness of the bearing and the horizontal air transport spraying apparatus. The utility model controls the conveying amount of the powder accurately, prevents the overstock and locking of the powder at the fall material tube mouth and keeps the homogenization of the powder conveying. The structure of inclining fall material tube makes the rotational axis deviate from the center of the horizontal air transporting tube, which decrease the abrasion to the pipeline and screw of the mixture of the powder and the gas, as well as the resistance of the pipeline conveying.
Description
Technical field
The utility model belongs to powder transfer device, and particularly a kind of new type of adjustable powder amount strength is carried jetting system.
Background technology
The conveying of powder strength is meant by air or other gas flows powdery or granular material in pipeline, its pipe arrangement is flexible, and the material of conveying can be not contaminated, and incomparable advantage is arranged, and field of application is wide, uses simple and reliable.But have a following difficult problem in the process that adopts this mode of movement: the device that carry for simple employing powder strength (1), powder not only are subjected to the attractive force of gas in the pipeline, but also are subjected to the self gravitation effect.Therefore, be transferred material and often can not smoothness enter loader, operational throughput is difficult to control, also will be subjected to the influence that rerum natura such as density, aqueous ingredients, granularity etc. change, and is especially to the imperfect material of flowing power, all the more so.(2) for adopting the defeated powder sending quantity device of flat spin, powder at first falls in the defeated powder sending quantity device of flat spin, under the squeezing action of the screw thread of horizontal screw bolt, falls into horizontal Pneumatic conveying pipeline again and carries.Though can control the size of powder conveying amount, the homogeneity of the conveying of powder is Cui not, and causes the overstocked obstruction of powder at flat spin feedway inlet easily, causes defeated powder to interrupt.(3) for warehouse style powder conveying, because the extruding of powder and the micro-moisture effect that powder carries make the entrance of powder material blanking tube in the storehouse stop up easily, cause defeated powder to open circuit, greatly influence the homogeneity of powder conveying.(4) in upright material blanking tube, taking the Wiper blade type powder feeding, in the horizontal feed powdered pipe, adopt strength to carry, equally can not the accuracy control powder flow, especially the low discharge powder flows, when scraping blade stops operating, because the gap of material blanking tube and turning cylinder still has powder to fall in the horizontal Pneumatic conveying pipeline.Above problem makes that the powder conveying amount can not accuracy control, and the homogeneity of powder can not get guaranteeing, influences the powder conveying equipment dependability.For coal-fired furnace, coal delivery of boiler powder system, the irregularity of defeated powder will greatly influence the stability of burning.
Summary of the invention
The purpose of this utility model provides a kind of new type of adjustable powder amount strength and carries jetting system, comprises inclination material blanking tube system, head bearing sealing system, lower bearing sealing system, spiral powder conveying system, horizontal strength delivery injector.Carry by the horizontal strength of the rotating speed cooperation that is adjusted in screw rod in the material blanking tube, reach accuracy control and carry the powder amount and prevent that effectively powder has guaranteed the homogeneity of powder conveying in the overstocked obstruction of the blanking mouth of pipe in the storehouse.Simultaneously, the respective outer side edges of material blanking tube, screw rod, Sealed casing pipe and bearing felt has guaranteed the leak tightness of bearing and eductor.
The utility model is by inclination material blanking tube system, the head bearing sealing system, the lower bearing sealing system, the spiral powder conveying system, horizontal strength delivery injector is formed, material blanking tube divides three sections, last material blanking tube (5) and following material blanking tube (7) are straight, middle material blanking tube (6) is a bevelled, the angle of inclination is the 70-80 degree, screw rod (1) is housed in the material blanking tube, the upper end design of screw rod (1) has scraping blade (3), big and the design of screw rod (1) the first half diameter has screw thread, the inclination angle of screw thread is the 10-25 degree, screw rod (1) the latter half diameter is little, screw rod (1) axis is with turning cylinder (16) dead in line that drives screw rod (1), and with the axis of horizontal Pneumatic conveying pipeline (21) not on same plane, the diaxon distance between centers of tracks is 1/4th of horizontal Pneumatic conveying pipeline (a 21) external diameter, between horizontal Pneumatic conveying pipeline (21) and head bearing seal cover cap (18), screw rod (1) peripheral hardware is in respect of Sealed casing pipe (20), the outer connection design of biserial angular contact bearing (11) has head bearing seal cover cap (18), angular contact bearing (15) peripheral hardware is in respect of lower bearing seal cover cap (12), turning cylinder (16) is connected with retarder (29), and frequency converter (27) is connected with motor (28).
The utility model is accurately controlled the operational throughput of powder, prevents overstocking and obstruction of blanking mouth of pipe powder effectively, has guaranteed the homogeneity of powder conveying; Inclination material blanking tube structure makes turning cylinder depart from horizontal Pneumatic conveying pipeline center, has reduced the wearing and tearing of the compound of powder and gas to pipeline and screw rod, has reduced the resistance of ducting.The respective outer side edges of material blanking tube, screw rod, Sealed casing pipe and bearing has guaranteed the leak tightness of bearing and eductor.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the utility model head bearing sealing system section partial enlarged drawing;
Fig. 3 is the utility model lower bearing sealing system section partial enlarged drawing;
Fig. 4 is the horizontal strength delivery injector of a utility model section-drawing;
Fig. 5 is the horizontal strength delivery injector of a utility model birds-eye view;
Fig. 6 is the utility model turning cylinder rotating speed control scheme drawing.
The specific embodiment
As shown in Figure 1, the spiral powder conveying system is by scraping blade (3) in the utility model, scraping blade sleeve pipe (2), screw rod (1), turning cylinder (16), biserial angular contact bearing (11), angular contact bearing (15), tightening screw (13), wedge groove (22) is formed, turning cylinder (16) links to each other with extraneous retarder (29) by wedge groove (22), turning cylinder (16) links to each other by tightening screw (13) with screw rod (1), scraping blade (3) is connected screw rod (1) by scraping blade sleeve pipe (2) and tightening screw (13) and is taken in retarder (29) when rotating, driving turning cylinder (16) rotates, thereby driving screw rod (1) rotates, powder is transferred under the screw thread squeese pressure effect of screw rod (1), its operational throughput is regulated by the velocity of rotation of turning cylinder (16), velocity of rotation is big more, and its powder delivering amount is big more.Because screw rod (1) drives scraping blade (3) rotation, can play beating action simultaneously, prevent that powder from the entrance of last material blanking tube (5) extruding taking place and stopping up.
Inclination material blanking tube system is made up of flange (4), last material blanking tube (5), middle material blanking tube (6) and following material blanking tube (7), middle material blanking tube (6) is a bevelled, the angle of inclination is the 70-80 degree, the axis coinciding of the axle center of screw rod (1) and last material blanking tube (5), and the axle center of material blanking tube (7) under departing from, screw rod (1) departs from horizontal Pneumatic conveying pipeline (21) center like this, has reduced the wearing and tearing of gas-solid mixture to horizontal Pneumatic conveying pipeline (21) and screw rod (1) in defeated powder process.
As shown in Figure 2, the head bearing sealing system is by bearing outside (10) in the utility model, upper flange (8), lower flange (9), Sealed casing pipe (20), top cover labyrinth (18), upper sealing washer (19), tightening screw (13) are formed, Sealed casing pipe (20) is fixing by being welded to connect with upper flange (8), bearing outside (10) is fixing by being welded to connect with lower flange (9), and upper flange (8) is fixed by bolted connection with lower flange (9); Screw rod (1) passes the first half that Sealed casing pipe (20) enters turning cylinder (16) from the top down, and turning cylinder (16) passes bearing outside (10) from bottom to top, the same turning cylinder of screw rod (1) (16) is connected and fixed by tightening screw (13), back seal circle (19) is placed in the groove of back seal circle (18), and biserial angular contact bearing (11) is fixed between top cover labyrinth (18), the turning cylinder (16).In defeated powder process; because the seal protection of Sealed casing pipe (20); extraneous dust can not enter in the biserial angular contact bearing (11); though there is a spot of powder to fall into the middle space of Sealed casing pipe (20), upper flange (8) and lower flange (9) by horizontal Pneumatic conveying pipeline (21); but because the protection of top cover labyrinth (18) and upper sealing washer (19), powder can not fall into biserial angular contact bearing (11).When defeated powder process finishes, at first stop spiral powder conveying, and horizontal strength conveying is penetrated device still in work, at this moment high-speed gas (velocity of sound or hyprsonic) will produce the suction suction function, make that remaining a small amount of powder is entrainmented conveying in the space in the middle of Sealed casing pipe (20), upper flange (8) and the lower flange (9), played automatic cleaning action.
As shown in Figure 3, the lower bearing sealing system is made up of lower sealing cover (12), lower sealing washer (14) and tightening screw (13) in the utility model, lower sealing cover (12) is connected and fixed by tightening screw (13) with bearing outside (10), lower sealing washer (14) is placed in the groove of lower sealing cover (12), and angular contact bearing (15) is fixed between bearing outside (10) and the lower sealing cover (12).Lower sealing cover (12), lower sealing washer (14) prevent in the extraneous dust entrance angle contact bearing (15), have improved the reliability of angular contact bearing (15).
Shown in Fig. 4,5, horizontal strength delivery injector is made up of nozzle (23), blending box (24), diffusion chamber (25), horizontal Pneumatic conveying pipeline (21) in the utility model, and nozzle (23), blending box (24) and diffusion chamber (25) are installed in the horizontal Pneumatic conveying pipeline (21) by bolt and flange.In defeated powder process, become low pressure (negative pressure) (velocity of sound or hyprsonic) gas at a high speed behind the high pressure gas process nozzles (23), the powder that will fall into horizontal Pneumatic conveying pipeline (21) entrainments brings blending box (24) into, the kinetic energy of powder increases, the kinetic energy of gas reduces, and enters in the diffusion chamber (25), and gas-solid mixture kinetic energy reduces, pressure energy increases, and enters pipe network and carries.
As shown in Figure 6, turning cylinder (16) rotating speed control process is as follows in the defeated powder process of the utility model: source of AC (26) inserts frequency converter (27), by regulating frequency converter (27) output voltage, reach the rotating speed of control motor (28), retarder (29) links to each other with motor (28), thereby reaches the rotating speed of accuracy control turning cylinder (16).
During work, rotate in certain range of speed by frequency converter (27) and retarder (29) control turning cylinder (16), powder is brought horizontal Pneumatic conveying pipeline (21) by last material blanking tube (5), middle material blanking tube (6) and following material blanking tube (7) into by screw rod (1) from the powder storehouse, under the effect of high-speed gas in horizontal Pneumatic conveying pipeline (21) (velocity of sound or hyprsonic) suction force, at first powder mixes in blending box (24) with gas, in diffusion chamber (25), carry out diffusion, gas-solid mixture pressure is raise, enter pipe network then and carry.
Claims (5)
1, a kind of new type of adjustable powder amount strength carries jetting system by inclination material blanking tube system, the head bearing sealing system, the lower bearing sealing system, horizontal strength delivery injector is formed, it is characterized in that material blanking tube divides three sections, last material blanking tube (5) and following material blanking tube (7) are straight, middle material blanking tube (6) is a bevelled, the angle of inclination is the 70-80 degree, screw rod (1) is housed in the material blanking tube, the upper end design of screw rod (1) has scraping blade (3), big and the design of screw rod (1) the first half diameter has screw thread, the inclination angle of screw thread is the 10-25 degree, screw rod (1) the latter half diameter is little, screw rod (1) axis is with turning cylinder (16) dead in line that drives screw rod (1), and with the axis of horizontal Pneumatic conveying pipeline (21) not on same plane, the diaxon distance between centers of tracks is 1/4th of horizontal Pneumatic conveying pipeline (a 21) external diameter, between horizontal Pneumatic conveying pipeline (21) and head bearing seal cover cap (18), screw rod (1) peripheral hardware is in respect of Sealed casing pipe (20), the outer connection design of biserial angular contact bearing (11) has head bearing seal cover cap (18), angular contact bearing (15) peripheral hardware is in respect of lower bearing seal cover cap (12), turning cylinder (16) is connected with retarder (29), and frequency converter (27) is connected with motor (28).
2, carry jetting system according to the described a kind of new type of adjustable powder amount strength of claim 1, it is characterized in that the head bearing sealing system is by bearing outside (10), upper flange (8), lower flange (9), Sealed casing pipe (20), top cover labyrinth (18), upper sealing washer (19), tightening screw (13) are formed, Sealed casing pipe (20) is fixing by being welded to connect with upper flange (8), bearing outside (10) is fixing by being welded to connect with lower flange (9), and upper flange (8) is fixed by bolted connection with lower flange (9); Screw rod (1) passes Sealed casing pipe (20) from the top down and enters turning cylinder (16) the first half, and turning cylinder (16) passes bearing outside (10) from bottom to top, the same turning cylinder of screw rod (1) (16) is connected and fixed by tightening screw (13), back seal circle (19) is placed in the groove of back seal circle (18), and biserial angular contact bearing (11) is fixed between top cover labyrinth (18), the turning cylinder (16).
3, carry jetting system according to the described a kind of new type of adjustable powder amount strength of claim 1, it is characterized in that the lower bearing sealing system is made up of lower sealing cover (12), lower sealing washer (14) and tightening screw (13), lower sealing cover (12) is connected and fixed by tightening screw (13) with bearing outside (10), lower sealing washer (14) is placed in the groove of lower sealing cover (12), and angular contact bearing (15) is fixed between bearing outside (10) and the lower sealing cover (12).
4, carry jetting system according to the described a kind of new type of adjustable powder amount strength of claim 1, it is characterized in that horizontal strength delivery injector is made up of nozzle (23), blending box (24), diffusion chamber (25), horizontal Pneumatic conveying pipeline (21), nozzle (23), blending box (24) and diffusion chamber (25) are installed in the horizontal Pneumatic conveying pipeline (21) by bolt and flange.
5, carry jetting system according to the described a kind of new type of adjustable powder amount strength of claim 1, it is characterized in that source of AC (26) inserts frequency converter (27), retarder (29) links to each other with motor (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200475580U CN201002890Y (en) | 2007-01-12 | 2007-01-12 | Powder-quantity adjustable pneumatic conveying injection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200475580U CN201002890Y (en) | 2007-01-12 | 2007-01-12 | Powder-quantity adjustable pneumatic conveying injection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002890Y true CN201002890Y (en) | 2008-01-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200475580U Expired - Fee Related CN201002890Y (en) | 2007-01-12 | 2007-01-12 | Powder-quantity adjustable pneumatic conveying injection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201002890Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102718071A (en) * | 2012-07-09 | 2012-10-10 | 首钢总公司 | Spiral feeding device |
| WO2013029538A1 (en) * | 2011-08-29 | 2013-03-07 | Shenzhen Byd Auto R&D Company Limited | Wheel-speed sensor mounting device |
| CN103449060A (en) * | 2013-08-29 | 2013-12-18 | 晨光生物科技集团莎车有限公司 | Uniform feeding system for material sealing tank |
| CN114471347A (en) * | 2022-01-29 | 2022-05-13 | 浙江汉信科技有限公司 | Mixing equipment and discharging device thereof |
-
2007
- 2007-01-12 CN CNU2007200475580U patent/CN201002890Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013029538A1 (en) * | 2011-08-29 | 2013-03-07 | Shenzhen Byd Auto R&D Company Limited | Wheel-speed sensor mounting device |
| US9310392B2 (en) | 2011-08-29 | 2016-04-12 | Byd Company Limited | Wheel-speed sensor mounting device |
| CN102718071A (en) * | 2012-07-09 | 2012-10-10 | 首钢总公司 | Spiral feeding device |
| CN102718071B (en) * | 2012-07-09 | 2014-05-28 | 首钢总公司 | Spiral feeding device |
| CN103449060A (en) * | 2013-08-29 | 2013-12-18 | 晨光生物科技集团莎车有限公司 | Uniform feeding system for material sealing tank |
| CN114471347A (en) * | 2022-01-29 | 2022-05-13 | 浙江汉信科技有限公司 | Mixing equipment and discharging device thereof |
| CN114471347B (en) * | 2022-01-29 | 2023-07-18 | 浙江汉信科技有限公司 | Mixing equipment and blanking device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080109 |