CN211109396U - Metal silicon powder conveying device in trichlorosilane production - Google Patents

Abstract

A metal silicon powder conveying device in trichlorosilane production belongs to the technical field of trichlorosilane production equipment and is used for conveying metal silicon powder used in trichlorosilane production. The technical scheme is as follows: the frame of bucket elevator is upright, the lower extreme of bucket elevator is fixed on the ground, there is the lifting machine feed inlet bucket elevator's lower part, there is the lifting machine discharge gate upper portion, the storehouse body in silicon powder storehouse is located lifting machine discharge gate below, the lifting machine discharge gate is relative with the silica flour storehouse feed inlet of the silica flour storehouse body, horizontal pipe chain machine horizontal installation is in the storehouse body below in silicon powder storehouse, the storehouse body lower extreme in silicon powder storehouse has the silica flour storehouse discharge gate relative with the feed inlet of horizontal pipe chain machine, horizontal pipe chain machine is relative with the feed inlet of a plurality of silica flour desicators. The utility model provides the high life of equipment has reduced maintenance work load and cost, has improved the security and the stability of production, has increased output, has safety, environmental protection, high efficiency, energy-conserving advantage, has good economy and social.

Description

Metal silicon powder conveying device in trichlorosilane production

Technical Field

The utility model relates to a metallic silicon powder conveying device used in trichlorosilane production, belonging to the technical field of trichlorosilane production equipment.

Background

Trichlorosilane is an important raw material for producing polycrystalline silicon, and with the wide application of polycrystalline silicon in the fields of modern science and technology, national defense, industry and the like, the production of trichlorosilane is rapidly developed, and the goals of improving the product quality and reducing the cost consumption are met by various manufacturers. However, in the production, the hardness of the metal silicon powder which is the raw material for producing trichlorosilane is very high and is second only to diamond, so that the traditional metal silicon powder conveying device is seriously abraded and frequently damaged, the production is seriously influenced, and meanwhile, the cost and the maintenance workload are increased. The traditional silicon powder conveying method is to form a negative pressure system by using a water ring vacuum pump for pumping or convey by using a pipe chain conveyor. When the production scale is small, a method of pumping by a vacuum pump is mostly adopted, but silicon powder is sucked in the pump due to poor separation or filtration, and the pump is scrapped due to excessive abrasion quickly. When the production scale is large, the pipe chain conveyor is mostly adopted for conveying, the traditional pipe chain conveyor chain is of a plate chain type and generally consists of a horizontal section and a vertical end, the number of parts is large, the number of connecting points is large, the feeding amount is not easy to control, parts such as common discs, chain sheets, pin shafts, split pins, pipelines and the like are quickly abraded, and therefore the situation that the conveying amount is insufficient due to disc abrasion or the chain is suddenly broken due to excessive abrasion of the chain often occurs in production. Particularly, the vertical section has large load, low efficiency and high failure rate, which not only causes large maintenance amount and high cost, but also seriously affects the production. Therefore, a novel metal silicon powder feeding device is urgently needed to replace the existing metal silicon powder conveying device.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a metallic silicon powder conveyor in trichlorosilane production is provided, this kind of metallic silicon powder conveyor should have safety, environmental protection, high efficiency, energy-conserving advantage, can improve the security and the stability of trichlorosilane production, increase of production simultaneously, reduction in production cost and the work load of maintenance.

The technical scheme for solving the technical problems is as follows:

the utility model provides a metal silica flour conveyor in trichlorosilane production, it comprises bucket elevator, silica flour storehouse and horizontal pipe chain machine, the frame of bucket elevator is upright, the lower extreme of bucket elevator is fixed on the ground, there is the elevator feed inlet bucket elevator's lower part, there is the elevator discharge gate upper portion, the storehouse body in silica flour storehouse is in elevator discharge gate below, the elevator discharge gate is relative with the silica flour storehouse feed inlet of the silica flour storehouse body, horizontal pipe chain machine horizontal installation is in the storehouse body below in silica flour storehouse, the storehouse body lower extreme in silica flour storehouse has silica flour storehouse discharge gate to be relative with the feed inlet of horizontal pipe chain machine, horizontal pipe chain machine is relative with the feed inlet of a plurality of silica flour desicators, the silica flour desicator is connected with the synthetic furnace.

Metallic silicon powder conveyor in above-mentioned trichlorosilane production, the bucket elevator is by the frame, the platform, including a motor, an end cap, a controller, and a cover plate, the speed reducer, drive sprocket, driven sprocket, the chain, the hopper, the lifting machine feed inlet, the lifting machine discharge gate is constituteed, the frame is upright steel frame, the upper end welded platform of frame, install the motor on the platform, speed reducer and drive sprocket, motor and speed reducer are connected, the speed reducer output shaft is connected with drive sprocket's sprocket shaft, driven sprocket installs the lower extreme in the frame, chain top-down passes the frame, the chain both ends are encircleed on drive sprocket and driven sprocket, a plurality of hoppers are fixed on the chain in proper order, the lower part and the upper portion of frame have lifting machine feed inlet and lifting machine discharge.

The metal silicon powder conveying device in the production of the trichlorosilane, the silicon powder bin comprises supporting legs, an upper beam, bottom beams, a bin body, a silicon powder bin feeding port, a silicon powder bin discharging port and a regulating valve, the four supporting legs are vertically fixed and upright, the four upper beams and the four bottom beams are respectively connected to the upper ends and the middle parts of the four supporting legs, the upper beams are parallel to the bottom beams, the supporting legs, the upper beams and the bottom beams are used for installing the bin body in the middle of the bottom beams, the bin body comprises bin walls, a top cover and bin bottoms, the bin walls are steel plates, the bin walls are connected to the supporting legs, the upper beams and the bottom beams, the top cover is a square steel plate, the four sides of the top cover are respectively connected with the four upper beams, the bin bottom is a conical steel plate, the four sides of the bin bottom are respectively connected with the four bottom beams.

The metal silicon powder conveying device in the production of the trichlorosilane, four support legs of the silicon powder bin are connected with horizontal side beams respectively, two ends of the horizontal side beams are connected with the two support legs respectively, vertical side beams are connected between the upper beam and the bottom beam respectively, two ends of the vertical side beams are connected with the upper beam and the bottom beam respectively, bin walls are located on the inner sides of the horizontal side beams and the vertical side beams and fixedly connected with the horizontal side beams and the vertical side beams, and a plurality of rib plates are welded between the bottom beam and the bin walls.

The metal silica powder conveying device in the production of the trichlorosilane, the chain of the horizontal pipe chain machine is composed of chain rings, discs, pressing plates and bolts, the two ends of each chain ring are arc-shaped, a plurality of chain ring lantern rings are connected, carbon steel pressing plates are arranged on the two sides of each disc respectively, the discs are perpendicular to the chain rings, one pressing plate in the pressing plates on the two sides of each disc is perpendicularly welded with the chain rings, the other pressing plate is opposite to the pressing plate welded on the chain rings, the discs are clamped between the two pressing plates, screw holes are formed in the peripheries of the two pressing plates and are opposite to each other, corresponding round holes are formed in the discs, and the bolts are used.

The utility model has the advantages that:

the utility model replaces the vertical section with the bucket elevator and the silicon powder bin, the traditional pipe chain machine has the highest failure rate, the bucket elevator has large conveying capacity and high efficiency, only the hopper contacts with the silicon powder during operation, the hopper is made of alloy steel and is very wear-resistant, and the service life of the equipment is greatly prolonged; the silicon powder bin is made of carbon steel, and a discharge port of the silicon powder bin is provided with an adjusting valve which can adjust the amount of silicon powder entering the pipe chain machine, so that the accidents of blockage or overload caused by excessive silicon powder entering the pipe chain machine are prevented, and the pipe chain machine is effectively protected; the chain of horizontal pipe chain machine has changed the ring chain structure into by traditional flat link chain structure, and simple structure is practical to the chain link is made by alloy steel and through carburization, has obviously improved hardness and wear resistance, has eliminated the possibility of chain breakage, and the disc is formed by rubber canvas conveyer belt processing, and wear-resisting and elasticity has really played the effect with the soft and hard, low cost moreover.

The utility model discloses a performance is compared with traditional device has had comprehensive promotion, has improved the life of equipment, has reduced maintenance work volume and cost, has improved the security and the stability of production, has increased output, has safety, environmental protection, high efficiency, energy-conserving advantage, has good economy and social.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a bucket elevator;

FIG. 3 is a schematic structural view of a silica powder bin;

FIG. 4 is a schematic view of a chain structure of the horizontal pipe chain machine;

fig. 5 is a side view of fig. 4.

In the labels in the figure: the device comprises a bucket elevator 1, a silicon powder bin 2, a horizontal pipe chain machine 3, a silicon powder dryer 4, a synthesis furnace 5, metal silicon powder 6, a frame 7, a platform 8, a motor 9, a speed reducer 10, a driving chain wheel 11, a driven chain wheel 12, a chain 13, a hopper 14, an elevator feed inlet 15, an elevator discharge outlet 16, support legs 17, an upper beam 18, a bottom beam 19, a horizontal side beam 20, a vertical side beam 21, a bin wall 22, a top cover 23, a bin bottom 24, a silicon powder bin feed inlet 25, a silicon powder bin discharge outlet 26, an adjusting valve 27, rib plates 28, chain rings 29, discs 30, a pressing plate 31 and bolts 32.

Detailed Description

The utility model discloses constitute by bucket elevator 1, silica flour storehouse 2 and horizontal pipe chain machine 3.

Fig. 1 shows that the frame 7 of the bucket elevator 1 is upright, the lower end of the bucket elevator 1 is fixed on a foundation, the lower part of the bucket elevator 1 is provided with an elevator feed inlet 15, the upper part of the bucket elevator is provided with an elevator discharge outlet 16, the bin body of the silicon powder bin 2 is positioned below the elevator discharge outlet 16 of the bucket elevator 1, the elevator discharge outlet 16 is opposite to the silicon powder bin feed inlet 25 of the silicon powder bin 2, the horizontal pipe chain machine 3 is horizontally arranged below the bin body of the silicon powder bin 2, the lower end of the bin body of the silicon powder bin 2 is provided with a silicon powder bin discharge outlet 26 opposite to the feed inlet of the horizontal pipe chain machine 3, the horizontal pipe chain machine 3 is opposite to the feed inlets of the silicon powder dryers 4. The metal silicon powder 6 is lifted to a silicon powder bin 2 by a bucket elevator 1, then is conveyed to a horizontal pipe chain machine 3 from the silicon powder bin 2, is conveyed to a silicon powder dryer 4 from the horizontal pipe chain machine 3, and finally enters a synthesis furnace 5 to generate chlorosilane.

Fig. 2 shows that the bucket elevator 2 is composed of a frame 7, a platform 8, a motor 9, a speed reducer 10, a driving sprocket 11, a driven sprocket 12, a chain 13, a hopper 14, an elevator inlet 15 and an elevator outlet 16.

The frame 7 is an upright steel frame, the upper end of the frame 7 is welded with a platform 8, and a motor 9, a speed reducer 10 and a driving sprocket 11 are arranged on the platform 8. The motor 9 drives the reducer 10 to rotate, and the reducer output shaft is connected with the sprocket shaft of the driving sprocket 11 to drive the driving sprocket 11 to rotate. Driven sprocket 12 installs the lower extreme at frame 7, and chain 13 top-down passes frame 7, and chain 13 both ends encircle on driving sprocket 11 and driven sprocket 12, and a plurality of hoppers 14 are fixed in proper order on chain 17, and driving sprocket 11 drives chain 13 and rotates, and hopper 14 reciprocates along with chain 13. The lower part and the upper part of the frame 7 are respectively provided with a lifting machine feeding hole 15 and a lifting machine discharging hole 16, when the hopper 14 rotates to the position of the lifting machine feeding hole 15, the opening of the hopper 16 faces upwards to receive the metal silicon powder 6, when the hopper 14 rotates to the position of the lifting machine discharging hole 16, the hopper 16 turns over, and the opening of the hopper 16 downwards pours the metal silicon powder 6 into the silicon powder bin feeding hole 25.

FIG. 3 shows that the silicon powder bin 2 comprises supporting legs 17, an upper beam 18, a bottom beam 19, horizontal side beams 20, vertical side beams 21, bin walls 22, a top cover 23, a bin bottom 24, a silicon powder bin feeding port 25, a silicon powder bin discharging port 26, an adjusting valve 27 and rib plates 28.

Four landing legs 17 are vertical, four upper beams 18 and four bottom beams 19 are respectively connected at the upper ends and the middle parts of the four landing legs 17, the upper beams 18 are parallel to the bottom beams 19, horizontal side beams 20 are respectively connected between the four landing legs 17, two ends of each horizontal side beam 20 are respectively connected with the two landing legs 17, vertical side beams 21 are respectively connected between the upper beams 18 and the bottom beams 19, and two ends of each vertical side beam 21 are respectively connected with the upper beams 18 and the bottom beams 19.

The bin wall 22 is made of steel plates, the bin wall 22 is connected in a sealing mode in four frame side faces formed by surrounding of the supporting legs 17, the upper beam 18, the bottom beam 19, the horizontal side beams 20 and the vertical side beams 21, and a plurality of rib plates 28 are welded between the bottom beam 19 and the bin wall 22. The top cover 23 is a square steel plate, and four sides of the top cover 23 are respectively connected with the four upper beams 18. The bin bottom 24 is a conical steel plate, and four sides of the bin bottom 24 are respectively connected with the four bottom beams 19. The top cover 23 is provided with a silicon powder bin feeding port 25, the conical top end of the bin bottom 24 is provided with a silicon powder bin discharging port 26, and the silicon powder bin discharging port 26 is provided with an adjusting valve 27. The metal silicon powder 6 is added from a silicon powder bin feeding port 25 and flows out from a silicon powder bin discharging port 26 through a regulating valve by gravity. The adjusting valve 27 can adjust the amount of silicon powder entering the horizontal pipe chain machine 3, so that the silicon powder entering the horizontal pipe chain machine 3 is prevented from being too much and causing blockage or overload accidents, and the horizontal pipe chain machine 3 is effectively protected.

Fig. 4 shows that the chain of the horizontal pipe chain machine 3 consists of chain rings 29, discs 30, pressure plates 31 and bolts 32, the two ends of each chain ring 29 are circular arc-shaped, a plurality of ring rings of the chain rings 29 are connected, and the chain rings are made of alloy steel and are subjected to carburizing treatment, so that the hardness and the wear resistance are obviously improved, and the possibility of chain breakage is eliminated. The disk 30 is made of rubber canvas conveyor belt, is wear-resistant and elastic, really achieves the effect of soft and rigid, and has low cost. The two sides of the disk 30 are respectively provided with a carbon steel pressure plate 31, the disk 30 is fixedly connected with the pressure plates 31 on the two sides by bolts 32, the disk 30 is vertical to the chain ring 29, one pressure plate of the pressure plates 31 on the two sides of the disk 30 is vertically welded with the chain ring 29, the other side pressure plate is opposite to the pressure plate welded on the chain ring 29 and is not welded, the disk 30 is clamped between the two pressure plates 31, the peripheries of the two pressure plates 31 are opposite to each other by screw holes, the disk 30 is provided with corresponding round holes, and the pressure plates 31 on the two sides and the disk 30 are fixedly connected by the bolts. Removal of bolts 32 allows removal of the disks 30 and them from the link 29 to facilitate replacement of the disks 30.

The utility model discloses an embodiment as follows:

the length of the frame 7 is 1400mm, the width is 554mm, and the height is 22450 mm;

the length of the platform 8 is 2500mm, the width thereof is 2200mm, and the height thereof is 800 mm;

the model of the motor 9 is Y132M-4;

the model of the speed reducer 10 is ZSY 160-35.5;

the diameters of the driving chain wheel 11 and the driven chain wheel 12 are 300 mm;

the length of the chain 13 is 44900 mm;

the hopper 14 has a length of 200mm, a width of 150mm and a height of 200 mm;

the length of the supporting leg 17 is 250mm, the width is 118mm, and the height is 3800 mm;

the length of the upper beam 18 is 3000mm, and the width is 200 mm;

the length of the bottom beam 19 is 3000mm, and the width is 250 mm;

the length of the horizontal side beam 20 is 3000mm, and the width is 100 mm;

the length of the vertical side beam 21 is 800mm, and the width is 100 mm;

the thickness of the steel plate of the bin wall 22 is 8 mm;

the model of the regulating valve 27 is DN150, PN10;

the chain ring 29 has a length of 112mm, a width of 56mm and a diameter of 16 mm;

the diameter of the disk 30 is 140mm, and the thickness is 10 mm;

the diameter of the pressing plate 31 is 100mm, and the thickness is 4 mm;

the bolt 32 has a diameter of 10 mm.

Claims (5)

1. A metal silica powder conveyor in trichlorosilane production which characterized in that: it consists of a bucket elevator (1), silicon powder storehouse (2) and horizontal pipe chain machine (3) are constituteed, frame (7) of bucket elevator (1) are upright, the lower extreme of bucket elevator (1) is fixed on the ground, there is lifting machine feed inlet (15) the lower part of bucket elevator (1), there is lifting machine discharge gate (16) upper portion, the storehouse body in lifting machine discharge gate (16) below in silicon powder storehouse (2), lifting machine discharge gate (16) are relative with silicon powder storehouse feed inlet (25) in silicon powder storehouse (2) the storehouse body, horizontal pipe chain machine (3) horizontal installation is in the storehouse body below in silicon powder storehouse (2), the storehouse body lower extreme in silicon powder storehouse (2) has silicon powder storehouse discharge gate (26) relative with the discharge gate of horizontal pipe chain machine (3), horizontal pipe chain machine (3) are relative with the feed inlet of a plurality of silicon powder desicators (4), silicon powder desicator (4) are connected with synthesizer (5).

2. The metal silicon powder conveying device in trichlorosilane production according to claim 1, which is characterized in that: the bucket elevator (1) is composed of a rack (7), a platform (8), a motor (9), a speed reducer (10), a driving chain wheel (11), a driven chain wheel (12), a chain (13), a hopper (14), an elevator feed inlet (15) and an elevator discharge outlet (16), wherein the rack (7) is an upright steel frame, the upper end of the rack (7) is welded with the platform (8), the motor (9), the speed reducer (10) and the driving chain wheel (11) are installed on the platform (8), the motor (9) is connected with the speed reducer (10), a speed reducer output shaft is connected with a chain wheel shaft of the driving chain wheel (11), the driven chain wheel (12) is installed at the lower end of the rack (7), the chain (13) penetrates through the rack (7) from top to bottom, two ends of the chain (13) are surrounded on the driving chain wheel (11) and the driven chain wheel (12), and a plurality of hoppers (, the lower part and the upper part of the frame (7) are respectively provided with a hoister feeding hole (15) and a hoister discharging hole (16), and the hoister feeding hole (15) and the hoister discharging hole (16) are respectively opposite to the hopper (14).

3. The metal silicon powder conveying device in trichlorosilane production according to claim 1, which is characterized in that: the silicon powder bin (2) comprises supporting legs (17), an upper beam (18), bottom beams (19), a bin body, a silicon powder bin feeding port (25), a silicon powder bin discharging port (26) and a regulating valve (27), wherein the four supporting legs (17) are vertically fixed and upright, the four upper beams (18) and the four bottom beams (19) are respectively connected to the upper ends and the middle parts of the four supporting legs (17), the upper beams (18) are parallel to the bottom beams (19), the bin body is arranged between the supporting legs (17), the upper beams (18) and the bottom beams (19), the bin body is composed of bin walls (22), a top cover (23) and bin bottoms (24), the bin walls (22) are steel plates, the bin walls (22) are connected among the supporting legs (17), the upper beams (18) and the bottom beams (19), the top cover (23) is a square steel plate, the four sides of the top cover (23) are respectively connected with the four upper beams (18), the bin bottoms (24) are conical steel plates, and the four sides of the bin bottoms, a silicon powder bin feeding port (25) is formed in the top cover (23), a silicon powder bin discharging port (26) is formed in the conical top end of the bin bottom (24), and an adjusting valve (27) is installed on the silicon powder bin discharging port (26).

4. The metal silicon powder conveying device in trichlorosilane production according to claim 3, wherein the metal silicon powder conveying device is characterized in that: horizontal side beams (20) are connected between four landing legs (17) of silicon powder storehouse (2) respectively, the both ends of horizontal side beam (20) are connected with two landing legs (17) respectively, be connected with vertical side beam (21) between upper beam (18) and floorbar (19) respectively, the both ends of vertical side beam (21) are connected with upper beam (18) and floorbar (19) respectively, bulkhead (22) are located the inboard and horizontal side beam (20) and vertical side beam (21) fixed connection of horizontal side beam (20) and vertical side beam (21), still weld between floorbar (19) and bulkhead (22) have a plurality of gusset boards (28).

5. The metal silicon powder conveying device in trichlorosilane production according to claim 1, which is characterized in that: the chain of the horizontal pipe chain machine (3) is composed of chain rings (29), a disc (30), pressure plates (31) and bolts (32), the two ends of each chain ring (29) are arc-shaped, a plurality of chain rings (29) are connected in a sleeved mode, carbon steel pressure plates (31) are arranged on the two sides of each disc (30), each disc (30) is perpendicular to each chain ring (29), one pressure plate of the pressure plates (31) on the two sides of each disc (30) is perpendicularly welded with each chain ring (29), the other side pressure plate of each pressure plate is opposite to each pressure plate welded on each chain ring (29), each disc (30) is clamped between the two pressure plates (31), screw holes are formed in the peripheries of the two pressure plates (31) and are opposite, corresponding round holes are formed in each disc (30), and the bolts (32) fixedly connect the pressure plates (31) on the two sides.

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