CN113058757B

CN113058757B - Overflow adjustable swirler

Info

Publication number: CN113058757B
Application number: CN202110287470.0A
Authority: CN
Inventors: 王永新
Original assignee: Qian'an Xinhao Iron Ore Dressing Co ltd
Current assignee: Qian'an Xinhao Iron Ore Dressing Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2022-04-22
Anticipated expiration: 2041-03-17
Also published as: CN113058757A

Abstract

The application relates to an overflow adjustable swirler belongs to sorting facilities's field, including straight barrel and the overflow pipe of connection on straight barrel, be fixed with the gasbag of the adjustable aeration volume of cylinder on the overflow pipe inner wall. This application has and is convenient for adjust an overflow section of thick bamboo diameter, improves the effect of the sorting quality of iron powder.

Description

Overflow adjustable swirler

Technical Field

The application relates to the field of sorting equipment, in particular to a cyclone with adjustable overflow.

Background

A cyclone is a widely used separation apparatus, for example, in the iron powder production industry, and it is necessary to separate ore slurry from heavy iron powder and light impurities.

Referring to fig. 1, the existing cyclone comprises a straight barrel 1, a feed inlet 2 is connected to the side wall of the upper end of the straight barrel 1, a cone 3 is connected to the bottom end of the straight barrel 1, the bottom end of the cone 3 is a underflow port 4 for discharging concentrate, an overflow tube 5 for overflowing impurities is connected to the center of the top end of the straight barrel 1, and the overflow tube 5 is inserted into the straight barrel 1. After the ore pulp enters the straight cylinder body 1 from the feed inlet 2, the ore pulp forms vortex-shaped water flow in the straight cylinder body 1 and the cone 3, iron powder with heavier mass is discharged from the bottom flow port, and impurities with lighter mass are discharged from the overflow port.

In view of the above-mentioned related technologies, the inventor believes that the size of the diameter of the overflow cylinder may affect the classifying ability and classifying performance of the cyclone, while the conventional cyclone cannot adjust the diameter of the overflow cylinder, in the actual production, the handling ability of the cyclone may not match with the actual demand ability, and the quality of the iron powder classification may be reduced.

Disclosure of Invention

In order to facilitate the regulation of the diameter of an overflow cylinder and improve the sorting quality of iron powder, the application provides a swirler with adjustable overflow.

The application provides a pair of overflow adjustable swirler adopts following technical scheme:

a swirler with adjustable overflow comprises a straight barrel body and an overflow pipe connected to the straight barrel body, wherein a cylindrical air bag with adjustable inflation volume is fixed on the inner wall of the overflow pipe.

Through adopting above-mentioned technical scheme, when the internal diameter of overflow pipe is adjusted to needs, the gas volume in the adjustable gasbag, when gaseous when increasing, gasbag volume increase promptly, when gaseous reduction, the gasbag volume reduces, the increase of overflow pipe internal diameter, and the internal diameter size of overflow pipe can be adjusted, improves the convenience of use, is convenient for adjust overflow section of thick bamboo diameter, improves the sorting quality of iron powder.

Optionally, be provided with the safety cover on the overflow pipe, the gasbag is wrapped up between safety cover and overflow pipe, is provided with the cavity in the overflow pipe, and the socket that communicates with the cavity is seted up to overflow pipe bottom terminal surface, and the cavity top is fixed with a plurality of first springs, and safety cover one end is fixed on the overflow pipe top, and the safety cover other end passes through the socket and inserts in the cavity and fixed with first spring.

Through adopting above-mentioned technical scheme, the taut safety cover of elasticity of first spring makes the safety cover closely wrap up in the gasbag outside, makes the gasbag obtain the protection to when the gasbag inflation, first spring can be elongated, makes the safety cover pulled.

Optionally, the cavity inner wall is located and is fixed with the fixed plate near socket top department, and the fixed plate bottom surface is fixed with a plurality of connecting rods, and the fixed plate below is provided with the tight ring of supporting, supports and has seted up a plurality of spread grooves on the tight ring, and the connecting rod inserts the spread groove and with spread groove sliding connection, the cover is equipped with the second spring that both ends were fixed respectively on the fixed plate and supported the tight ring on the connecting rod.

Through adopting above-mentioned technical scheme, the elasticity of second spring promotes to support tight ring and supports tightly on the socket, when the safety cover passes through the socket and slides, supports tight ring and supports tight safety cover to when the safety cover is pulled, support tight ring can fluctuate, when supporting tight safety cover, make the safety cover can the steady slip, the protection gasbag improves the sorting precision.

Optionally, the bottom end of the overflow pipe is slidably connected with a bottom ring which slides along the axial direction of the overflow pipe, the socket is arranged on the bottom ring, and a third spring which pushes the bottom ring to be away from the fixing plate is fixed on the bottom surface of the fixing plate.

By adopting the technical scheme, the protective cover surrounds the inner side of the overflow pipe from the lower part of the bottom ring, when the protective cover is pulled, the bottom ring can be driven to slide up and down, when the protective cover is expanded by the air bag, the protective cover slides out of the cavity, and as the abutting ring abuts against the protective cover, the protective cover positioned on the outer side of the overflow pipe is tightened, so that the bottom ring is pulled to slide upwards, and therefore the bottom ring and the abutting ring abut against the protective cover oppositely, and the stability of the protective cover is further improved; when the protective cover is not flexible, the elastic force of the third spring pushes the bottom ring to be far away from the fixed plate, so that the protective cover is opened, the protective cover is always kept in a tight state, the air bag is protected, and the sorting precision is improved.

Optionally, an electromagnet is fixed at the bottom end of the connecting rod, and a metal block is fixed at the bottom of the connecting groove.

Through adopting above-mentioned technical scheme, when need withdraw the cavity with the safety cover in, can be to the electro-magnet circular telegram, the electro-magnet adsorbs the metal block, makes to support the tight ring and be close to solid fixed ring, and the safety cover does not have external force promptly and supports tightly, and first spring can smoothly withdraw the safety cover in the cavity.

Optionally, the bottom end of the inner side of the bottom ring is a smooth arc surface.

Through adopting above-mentioned technical scheme, when the safety cover parcel was outside the bottom ring gasbag promptly, the safety cover was tightened and hugs closely on the cambered surface of bottom ring, consequently the internal diameter of overflow pipe reduces gradually from lower to upper promptly, reduces the disorderly possibility of overflow pipe bottom department rivers, improves the rotatory stability of interior vortex.

Optionally, a sealing ring is fixed on the inner walls of two sides of the socket respectively, and the two sealing rings are abutted against the protective cover in opposite directions.

Through adopting above-mentioned technical scheme, the sealing washer improves the waterproof nature of cavity, supports tight safety cover simultaneously, improves the stability of safety cover.

Optionally, a feed inlet is fixed on the side wall of the upper end of the straight barrel body, the feed inlet is arc-shaped, and the feeding direction of the feed inlet is tangent to the straight barrel body.

Through adopting above-mentioned technical scheme, before the ore pulp enters into straight barrel from the feed inlet, at first carry out preliminary centrifugation along the radian of feed inlet, then when entering straight barrel, further centrifugation improves the centrifugal effect of ore pulp.

Optionally, the width of the feed inlet is gradually reduced from one end far away from the straight cylinder body to one end close to the straight cylinder body.

Through adopting above-mentioned technical scheme, under the unchangeable condition of ore pulp flow, the width of feed inlet reduces gradually, and then the pressure of ore pulp increases gradually, has bigger impact force occasionally when flowing into in the straight cylinder, improves centrifugal effect.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the inner diameter of the overflow pipe needs to be adjusted, the gas amount in the gas bag is adjusted, the volume of the gas bag is increased, namely the inner diameter of the overflow pipe is reduced, when the gas is reduced, the volume of the gas bag is reduced, the inner diameter of the overflow pipe is increased, the size of the inner diameter of the overflow pipe can be adjusted, the use convenience is improved, the diameter of an overflow cylinder is convenient to adjust, and the sorting quality of iron powder is improved;

2. the elastic force of the second spring pushes the abutting ring to abut against the socket, when the protective cover slides through the socket, the abutting ring abuts against the protective cover, and when the protective cover is pulled, the abutting ring can float up and down, and when the protective cover abuts against the protective cover, the protective cover can stably slide, so that an air bag is protected, and the sorting precision is improved;

3. when the protective cover is not flexible, the elastic force of the third spring pushes the bottom ring to be far away from the fixed plate, so that the protective cover is opened, the protective cover is always kept in a tight state, the air bag is protected, and the sorting precision is improved.

Drawings

FIG. 1 is a schematic structural diagram of a related art of the present application;

FIG. 2 is a schematic diagram of the overall structure of the present application;

FIG. 3 is a schematic view of the feed gap configuration of the present application;

FIG. 4 is a cross-sectional view of the internal structure of the overflow tube of the present application;

FIG. 5 is an enlarged partial schematic view of portion A of FIG. 4;

fig. 6 is a cross-sectional view of the connection structure of the connection rod and the retaining ring in the present application.

Description of reference numerals: 1. a straight cylinder body; 2. a feed inlet; 3. a cone; 4. a underflow port; 5. an overflow pipe; 51. a cavity; 52. an inner annular wall; 53. an outer annular wall; 54. a bottom ring; 541. a communicating cavity; 542. inserting grooves; 543. a socket; 544. a seal ring; 6. an air bag; 7. a protective cover; 8. a fixing ring; 9. a first spring; 10. a fixing plate; 11. a tightening ring; 111. connecting grooves; 12. a connecting rod; 13. A second spring; 14. a third spring; 15. an electromagnet; 16. a metal block.

Detailed Description

The present application is described in further detail below with reference to figures 2-6.

The embodiment of the application discloses overflow adjustable swirler, refer to fig. 2, including straight barrel 1, straight barrel 1 is the cylinder, and the top is sealed, and the upper end lateral wall of straight barrel 1 is connected with feed inlet 2, and 1 bottom fixedly connected with cone 3 of straight barrel, the bottom of cone 3 is underflow opening 4. An overflow pipe 5 is fixed in the center of the straight barrel 1, one end of the overflow pipe 5 is positioned in the straight barrel 1, and the other end of the overflow pipe extends out of the top end of the straight barrel 1. The slurry flows into the straight barrel body 1 from the feed port 2 along the tangential direction of the barrel body under certain pressure, and then a high-speed rotating flow field is generated in the straight barrel body 1. Mineral powder in the ore pulp moves downwards along the axial direction under the action of the rotational flow field, moves outwards along the radial direction, slides down along the cone 3 and is discharged from the underflow port 4; the impurities move in a direction close to the central axis, form an inner vortex carried upward at the center of the axis, and then are discharged from the overflow pipe 5.

Referring to fig. 3, the feed inlet 2 is arc-shaped, and the width of the feed inlet 2 away from the straight cylinder 1 is wider, and the width directly connected with the straight cylinder 1 is narrower. Ore pulp flows into straight barrel 1 from feed inlet 2 along the tangential direction of straight barrel 1 in, under the unchangeable condition of rivers flow, ore pulp flowing pressure grow, consequently the ore pulp with faster speed flow in straight barrel 1, make the separation effect of ore pulp in the rotating field better. And before the ore pulp enters the straight barrel body 1 from the feed inlet 2, the ore pulp is firstly subjected to preliminary centrifugation along the radian of the feed inlet 2, and then is further centrifuged when entering the straight barrel body 1, so that the centrifugation effect of the ore pulp is improved.

Referring to fig. 1 and 3, a circular air bag 6 is fixed to the inner wall of the overflow pipe 5 so that the diameter of the overflow pipe 5 can be adjusted. The amount of gas filled in the balloon 6 can be changed according to the required inner diameter of the overflow pipe 5. When the amount of gas in the balloon 6 increases, the caliber of the overflow pipe 5 decreases.

While the mixture of the foreign matter and water flows out of the overflow pipe 5, there may be sharp particles with larger particles among the foreign matter, and thus the balloon 6 may be scraped. Therefore, a protective cover 7 for covering the air bag 6 is attached to the overflow pipe 5.

Referring to fig. 4 and 5, a cavity 51 is formed inside the overflow pipe 5, the side wall of the overflow pipe 5 located inside the cavity 51 is an inner annular wall 52, the side wall located outside the cavity 51 is an outer annular wall 53, and a bottom end of the overflow pipe 5 is slidably connected with a bottom ring 54. The bottom ring 54 has a communication chamber 541 therein, and a top end of the communication chamber 541 communicates with the cavity 51. The top surfaces of the side walls of the bottom ring 54 located inside and outside the communication cavity 541 are provided with inward-recessed insertion grooves 542, and the bottom ends of the inner ring wall 52 and the outer ring wall 53 are inserted into the insertion grooves 542 and can slide along the insertion grooves 542.

The bottom surface center of the bottom ring 54 is provided with a circular socket 543, and the socket 543 is communicated with the communicating cavity 541. Fixed ring 8 is installed at cavity 51 top, is provided with a plurality of first springs 9 between fixed ring 8 and the cavity 51 interior top surface, and first spring 9 one end is fixed on fixed ring 8, and the other end is all fixed on cavity 51 interior top surface. The protective cover 7 is cylindrical, one end of the protective cover 7 is fixed on the top end of the overflow pipe 5, and the other end is inserted into the cavity 51 through the socket 543 and fixed on the fixing ring 8. The protective cover 7 is tensioned by the elastic force of the first spring 9, and the protective cover 7 is tightly attached to the airbag 6. When the airbag 6 is inflated, the protective cover 7 is pulled to slide out of the cavity 51, the first spring 9 is stretched, and the protective cover 7 is always in a tightened state due to the large elastic force of the first spring 9.

Two sealing rings 544 are fixed on the inner wall of the insertion opening 543, the two sealing rings 544 are respectively located on two sides of the protective cover 7, the sealing rings 544 are tightly attached to the protective cover 7, a sealing effect is achieved, and the possibility that water enters the cavity 51 through the insertion opening 543 is reduced.

The bottom end of the inner side of the bottom ring 54 is a smooth arc surface, when the protective cover 7 winds to the outer side of the air bag 6 from the lower part of the bottom ring 54, the bottom end surface of the protective cover 7 is a smooth arc surface in transition, namely the inner diameter of the overflow pipe 5 is gradually reduced from bottom to top, the possibility of disorder of water flow at the bottom end of the overflow pipe 5 is reduced, and the rotation stability of the inner vortex is improved.

Referring to fig. 5 and 6, an annular fixing plate 10 is fixed at a position close to a bottom end port in the cavity 51, a tightening ring 11 is slidably connected below the fixing plate 10, the tightening ring 11 is circular and has a circular cross section, a plurality of connecting rods 12 are fixed on a bottom surface of the fixing plate 10, a plurality of connecting grooves 111 are formed in the tightening ring 11, the connecting rods 12 are inserted into the connecting grooves 111, and the connecting rods 12 are slidably connected with the connecting grooves 111, so that the tightening ring 11 can slide up and down along a vertical direction. A second spring 13 is sleeved on the connecting rod 12, one end of the second spring 13 is fixed on the bottom surface of the fixing plate 10, and the other end is fixed on the surface of the abutting ring 11. Under the elastic force of the second spring 13, the abutting ring 11 is inserted into the connecting groove 111 and abuts on the upper side of the insertion opening 543, so that the protection cover 7 is pressed between the bottom ring 54 and the abutting ring 11, the sealing performance at the insertion opening 543 is further enhanced, and the stability of the protection cover 7 is improved.

Referring to fig. 4 and 5, a third spring 14 is further fixed on the bottom surface of the fixing plate 10, the other end of the third spring 14 is fixed on the bottom ring 54, the elastic force of the third spring 14 is smaller than that of the first spring 9, and the third spring 14 pushes the bottom ring 54 away from the overflow pipe 5, so that the bottom ring 54 tightens the protection cover 7. When the airbag 6 becomes larger to support the protection cover 7, the force of the expansion of the airbag 6 is larger, so that the protection cover 7 can be gradually pulled out from the cavity 51, and the abutting force applied to the protection cover 7 by the abutting ring 11 is smaller than the supporting force applied to the protection cover 7 by the airbag 6, so that the protection cover 7 can be gradually pulled out, and simultaneously, under the action of the abutting force, the protection cover 7 can be ensured to be pulled out in a tightened state. When water flows in the cyclone, the protective cover 7 can float under the scouring force of the water flow, and the scouring force is far smaller than the abutting force, so that the protective cover 7 cannot slide out of the cavity 51 under the action of the scouring force of the water flow, and the stability of the protective cover 7 is high.

If the gas in the airbag 6 is reduced, the protective cover 7 becomes loose without being supported by the airbag 6, and the third spring 14 pushes the bottom ring 54 to slide downwards, so that the bottom ring 54 tightens the protective cover 7, and the protective cover 7 is always tightly attached to the airbag 6.

Referring to fig. 5 and 6, in order to retract the protective cover 7, an electromagnet 15 is fixed to the bottom end of the connecting rod 12, and a metal block 16 is fixed to the bottom of the insertion groove 542. When the electromagnet 15 is energized, the electromagnet 15 can attract the metal block 16, so that the abutting ring 11 approaches the fixing plate 10, and the abutting force of the abutting ring 11 and the bottom ring 54 on the protection cover 7 is reduced. By pulling the first spring 9, the protective cap 7 is pulled, the protective cap 7 buttresses the bottom ring 54 to slide upwards, the third spring 14 is compressed, and the protective cap 7 slides along the insertion opening 543 into the cavity 51, so that the protective cap 7 is adjusted.

The implementation principle of the swirler with the adjustable overflow in the embodiment of the application is as follows: when the diameter of the overflow pipe 5 needs to be reduced, the balloon 6 can be inflated to increase the diameter of the overflow pipe 5. The protective cover 7 is supported by the airbag 6, the bottom ring 54 and the abutting ring 11 clamp the protective cover 7, and the protective cover 7 is slowly pulled out from the insertion opening 543.

When the inflation of the airbag 6 is stopped, the position of the protective cover 7 is locked. When water flow scours the protective cover 7 and the protective cover 7 shakes, the abutting ring 11 abuts against the protective cover 7 tightly under the elastic action of the second spring 13, and the bottom ring 54 supports the protective cover 7 tightly under the elastic action of the third spring 14.

When the aperture of the overflow pipe 5 is reduced, part or all of the gas in the air bag 6 is discharged, then the electromagnet 15 is electrified, the electromagnet 15 adsorbs the metal block 16, the abutting ring 11 approaches to the fixing plate 10, the fixing ring 8 pulls the protection cover 7 under the action of the elastic force of the first spring 9, the protection cover 7 retracts into the cavity 51, and the protection cover 7 on the inner side of the overflow pipe 5 is tightly attached to the air bag 6.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an overflow adjustable swirler, includes straight barrel (1) and overflow pipe (5) of connection on straight barrel (1), its characterized in that: be fixed with gasbag (6) of the adjustable aeration quantity of cylinder on overflow pipe (5) inner wall, be provided with safety cover (7) on overflow pipe (5), gasbag (6) are wrapped up between safety cover (7) and overflow pipe (5), be provided with cavity (51) in overflow pipe (5), socket (543) with cavity (51) intercommunication are seted up to overflow pipe (5) bottom terminal surface, cavity (51) top is fixed with a plurality of first spring (9), safety cover (7) one end is fixed on overflow pipe (5) top, safety cover (7) other end inserts in cavity (51) and is fixed with first spring (9) through socket (543).

2. An adjustable overflow cyclone in accordance with claim 1, wherein: lie in on cavity (51) the inner wall and be fixed with fixed plate (10) near socket (543) top department, fixed plate (10) bottom surface is fixed with a plurality of connecting rods (12), fixed plate (10) below is provided with and supports tight ring (11), support and seted up a plurality of spread grooves (111) on tight ring (11), connecting rod (12) insert spread groove (111) and with spread groove (111) sliding connection, the cover is equipped with second spring (13) that both ends were fixed respectively on fixed plate (10) and support tight ring (11) on connecting rod (12).

3. An adjustable overflow cyclone in accordance with claim 2, wherein: an electromagnet (15) is fixed at the bottom end of the connecting rod (12), and a metal block (16) is fixed at the bottom of the connecting groove (111).

4. An adjustable overflow cyclone in accordance with claim 2, wherein: the bottom end of the overflow pipe (5) is connected with a bottom ring (54) which slides along the axial direction of the overflow pipe (5) in a sliding manner, the socket (543) is arranged on the bottom ring (54), and a third spring (14) which pushes the bottom ring (54) to be far away from the fixing plate (10) is fixed on the bottom surface of the fixing plate (10).

5. An adjustable overflow cyclone in accordance with claim 4 wherein: the bottom end of the inner side of the bottom ring (54) is a smooth cambered surface.

6. An adjustable overflow cyclone in accordance with claim 1, wherein: and the inner walls of two sides of the socket (543) are respectively fixed with a sealing ring (544), and the two sealing rings (544) are oppositely abutted against the protective cover (7).

7. An adjustable overflow cyclone in accordance with claim 1, wherein: the feeding device is characterized in that a feeding hole (2) is fixed on the side wall of the upper end of the straight barrel body (1), the feeding hole (2) is arc-shaped, and the feeding direction of the feeding hole (2) is tangent to the straight barrel body (1).

8. An adjustable overflow cyclone in accordance with claim 7 wherein: the width of the feed inlet (2) is gradually reduced from one end far away from the straight cylinder body (1) to one end close to the straight cylinder body (1).