CN110882824B

CN110882824B - Interference bed separator

Info

Publication number: CN110882824B
Application number: CN201911078930.8A
Authority: CN
Inventors: 王平武
Original assignee: Shimen Baofeng Machinery Manufacturing Co ltd
Current assignee: Shimen Baofeng Machinery Manufacturing Co ltd
Priority date: 2019-11-07
Filing date: 2019-11-07
Publication date: 2021-11-30
Anticipated expiration: 2039-11-07
Also published as: CN110882824A

Abstract

The invention relates to the technical field of coal mine sorting equipment, and discloses an interference bed sorting machine which comprises a sorting machine, an overflow collecting tank, a feeding well, an interference plate, a discharge valve, a feeding channel, a water inlet channel, an overflow port, an actuator, a connecting wire, a density detector, a supporting leg, an underwater bearing, a hollow shaft, an impeller, a rotary screen, a cap and a supporting device, wherein the overflow collecting tank is fixedly arranged on the outer side of the top of the sorting machine. Compared with the prior art, through the setting of interference plate and sorter bottom chute, when making during the water that lets in from the income water passageway gets into the sorter, produce ascending rotatory rivers, and when meeting with coarse coal slime, can carry it and rotate, increase the hover time of coarse coal slime, improve the sorting effect of concentrate, and the tailing can be better concentrate to the middle part, and then reduce the tailing discharge time, reduce the unstable time of interference bed in the sorter, improve the sorting efficiency of coarse coal slime.

Description

Interference bed separator

Technical Field

The invention relates to the technical field of coal mine sorting equipment, in particular to an interference bed sorting machine.

Background

A coarse coal slime separation device for separating materials by using an interference settling principle is characterized in that a bottom ascending water flow and a bottom descending material interference settling are utilized to form an interference bed layer with a certain density, coarse particle materials are separated according to the density, as shown in figure 1, the coarse coal slime is added into the separator from a feed channel, meanwhile, a water flow with a certain pressure is introduced from a water inlet channel, the ascending water flow meets the coarse coal slime in the middle of the separator and generates interference settling to form the interference bed layer with a certain density, when a system reaches a stable state, light particles with the density lower than the bed density in the coarse coal slime float up to a collecting tank overflow port and are discharged from an overflow port to form concentrate, and the materials with the density higher than the bed layer pass through the separation bed layer and are gathered at the bottom of an inner cavity of the separator for accumulation, so that the interference bed layer reaches a certain density, data are transmitted to a density detector, at this time, the density detector controls the discharge valve to be opened, and then the tailings are discharged from the discharge valve at the bottom of the separator to become tailings, but the device has some defects as follows:

after the coarse coal slime got into the sorter from the pan feeding mouth, arrive the barrel through the pan feeding well, decline the in-process here, the transverse distribution of coarse coal slime is inhomogeneous, make bed thickness differ when disturbing the bed and reaching steady state, bed density distribution is inhomogeneous, bed poor stability, it is big to lead to the actual separation density and set for the separation density deviation, and then it is big to lead to sorter concentrate ash fluctuation, the material that leads to the bottom simultaneously piles up in one side, it is unusual to cause the bleeder valve to arrange the material, often need manual row material and parking to handle, and the detection data that causes the density detector is inaccurate, make bleeder valve open time overlength, lead to some concentrate outflow, cause the loss.

Disclosure of Invention

The invention provides an interference bed separator which has the advantage of good separation effect and solves the problems in the background technology.

The invention provides the following technical scheme: an interference bed separator comprises a separator, an overflow collecting tank, a feeding well, an interference plate, a discharge valve, a feeding channel, a water inlet channel, an overflow port, an actuator, a connecting wire, a density detector, a controller, supporting legs, an underwater bearing, a hollow shaft, an impeller, a rotary screen, a cover cap and a supporting device, wherein the overflow collecting tank is fixedly arranged at the outer side of the top of the separator, the feeding well is fixedly arranged at the center of the top of the separator, the feeding channel is fixedly connected with the left side of the feeding well, the feeding channel has a certain inclination, the actuator is fixedly arranged on the upper surface of the feeding well, the discharge valve is fixedly arranged at the center of the bottom of the separator, the density detector is hung in the middle of the inner cavity of the separator, the controller is respectively connected with the actuator and the density detector through the connecting wire, and the actuator is connected with the discharge valve through the connecting wire, interference plate fixed mounting is in the bottom of sorter, the supporting leg have four respectively with the bottom fixed connection of sorter, the top fixedly connected with aquatic bearing of supporting leg, the hollow shaft cup joints with aquatic bearing is fixed, impeller fixed mounting is in the bottom of hollow shaft, rotary screen fixed mounting is at the top of hollow shaft, block movable mounting is at the center at rotary screen top, strutting arrangement and the inner wall fixed connection of sorter just are located the below of rotary screen.

Preferably, the interference board includes swash plate and income water hole, the swash plate has certain inclination, the side at swash plate top and the lateral wall fixed connection of sorter inner chamber, the bottom of swash plate and the bottom surface fixed connection of sorter inner chamber, form the hollow layer between sorter and the interference board, the inner chamber intercommunication of evenly seting up on the swash plate and with hollow layer and sorter in the income water hole, the income water hole is thirty degrees on rotatory slant.

Preferably, the height of the interference plate is 200mm lower than the height of the density detector.

Preferably, the hollow shaft and the middle part of the rotary screen are hollow, and the cover cap is sleeved on the connecting line.

Preferably, the bottom of the feeding well is in an inverted circular truncated cone shape, a conical groove is formed in the center of the bottom of the separator, and the maximum diameter of the conical groove is half of the diameter of the bottom of the separator.

Preferably, the maximum diameter of the rotating screen is less than half the diameter of the classifier, and the diameter of the impeller is equal to one third of the diameter of the classifier.

The invention has the following beneficial effects:

1. compared with the prior art, through the setting of interference plate and sorter bottom chute, when making during the water that lets in from the income water passageway gets into the sorter, produce ascending rotatory rivers, and when meeting with coarse coal slime, can carry it and rotate, increase the hover time of coarse coal slime, improve the sorting effect of concentrate, and the tailing can be better concentrate to the middle part, and then reduce the tailing discharge time, reduce the unstable time of interference bed in the sorter, improve the sorting efficiency of coarse coal slime.

2. Through the setting of impeller and rotary screen, make under ordering about of rotatory rivers impeller rotate and drive the rotary screen rotatory, can effectively mediate the coarse coal mud that gets into from the pan feeding passageway, make it evenly meet with rotatory rivers from the rotary screen all around, increase the homogeneity and the stability of bed density, the setting of the conical wire side of rotary screen simultaneously, increased the screening to the concentrate, improve concentrate sorting efficiency, further accelerate the sorting efficiency to coarse coal mud, improve equipment's work efficiency.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic cross-sectional elevation view of the structure of the present invention;

FIG. 3 is a schematic view taken from A-A in FIG. 2 according to the present invention;

FIG. 4 is a schematic view of a structural rotary screen of the present invention;

FIG. 5 is a schematic view of the structure of the present invention.

In the figure: 1. a sorting machine; 2. an overflow collecting tank; 3. a feeding well; 4. an interference plate; 41. a sloping plate; 42. a water inlet hole; 5. a discharge valve; 6. a feeding channel; 7. a water inlet channel; 8. an overflow port; 9. an actuator; 10. a connecting wire; 11. a density detector; 12. a controller; 13. supporting legs; 14. an underwater bearing; 15. a hollow shaft; 16. an impeller; 17. rotating the screen; 18. capping; 19. and a supporting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 2-5, an interference bed separator comprises a separator 1, an overflow collecting tank 2, a feeding well 3, an interference plate 4, a discharge valve 5, a feeding channel 6, a water inlet channel 7, an overflow port 8, an actuator 9, a connecting line 10, a density detector 11, a controller 12, a support leg 13, an underwater bearing 14, a hollow shaft 15, an impeller 16, a rotary screen 17, a cap 18 and a support device 19, wherein the overflow collecting tank 2 is fixedly installed at the outer side of the top of the separator 1, the feeding well 3 is fixedly installed at the center of the top of the separator 1, the feeding channel 6 is fixedly connected with the left side of the feeding well 3, the feeding channel 6 has a certain inclination, the actuator 9 is fixedly installed on the upper surface of the feeding well 3, the discharge valve 5 is fixedly installed at the center of the bottom of the separator 1, the density detector 11 is suspended at the middle part of the inner cavity of the separator 1, the controller 12 is respectively connected with the actuator 9 and the density detector 11 through the connecting line 10, executor 9 is connected with bleeder valve 5 through connecting

wire

10, 4 fixed mounting of interference plate are in the bottom of sorter 1, supporting leg 13 have four respectively with sorter 1's bottom fixed connection, supporting leg 13's top fixedly connected with aquatic bearing 14, hollow shaft 15 and aquatic bearing 14 fixed cup joint, impeller 16 fixed mounting is in the bottom of hollow shaft 15, rotary screen 17 fixed mounting is at the top of hollow shaft 15, block 18 movable mounting is at the center at rotary screen 17 top, strutting arrangement 19 and sorter 1's inner wall fixed connection just is located rotary screen 17's below.

Wherein, the interference plate 4 includes swash plate 41 and inlet hole 42, swash plate 41 has certain inclination, the side at swash plate 41 top and the lateral wall fixed connection of 1 inner chamber of sorter, the bottom of swash plate 41 and the bottom surface fixed connection of 1 inner chamber of sorter, form the hollow layer between sorter 1 and the interference plate 4, inlet hole 42 evenly sets up on swash plate 41 and with the inner chamber intercommunication of hollow layer and sorter 1, inlet hole 42 is thirty degrees in the rotatory slant, can carry out the water conservancy diversion with the rivers that get into, make it turn into rotatory ascending rivers in sorter 1, can carry the coarse coal slime, increase the separation time, improve the separation effect, and make the tailing concentrate to the middle part, so that the discharge of bleeder valve 5.

The height of the interference plate 4 is 200mm lower than the height of the density detector 11, so that when the mixed liquid in the separator 1 tends to be relatively stable, the impact of the water flow is too large to cause the detection of the density detector 11 to have deviation, and the detection precision of the density detector 11 is improved.

Wherein, the middle part of hollow shaft 15 and rotary screen 17 is cavity, and block 18 cup joints on connecting wire 10, and connecting wire 10 passes from the middle part of hollow shaft 15 and rotary screen 17, is connected executor 9 and bleeder valve 5, falls into wherein in order to prevent coarse coal mud simultaneously, reduces rotary screen 17 rotation resistance.

Wherein, the bottom of pan feeding well 3 is inverted circular truncated cone shape, can concentrate the coarse coal slime to the middle part of rotary screen 17, then is dispersing to all around, improves the degree of consistency of coarse coal slime, and the circular cone groove has been seted up at the bottom center of sorter 1, and the maximum diameter in circular cone groove is half of sorter 1 bottom diameter, can make the tailing concentrate wherein after rotatory rivers impact, improves the emission efficiency of tailing.

Wherein, the maximum diameter of rotary screen 17 is less than half of sorter 1 diameter, and the diameter of impeller 16 equals the third of sorter 1 diameter, reduces the hindrance to coarse coal mud and rivers, strengthens the sorting effect of coarse coal mud.

The working principle is that the coarse coal slime is added into the separator 1 from the feeding channel 6, meanwhile, water flow with certain pressure is introduced from the water inlet channel 7, the water flow forms ascending rotary water flow under the action of the water inlet hole 42, so that the ascending rotary water flow meets the coarse coal slime in the middle of the separator 1 and generates interference settlement to form an interference bed layer with certain density, when the system reaches a stable state, light particles in the coarse coal slime with the density lower than the density of the bed layer float up to the overflow collecting tank 2 and are discharged from the overflow port 8 to become concentrate, materials with the density higher than the bed layer pass through the separation bed layer to be gathered at the bottom of the inner cavity of the separator 1 for accumulation, after the interference bed layer reaches certain density, data are transmitted to the controller 12, at the moment, the controller 12 controls the discharge valve 5 to be opened, and tailings are discharged from the discharge valve 5 at the bottom of the separator 1 to become tailings, the tailings are concentrated towards the middle by the rotary water flow, so that the tailings can be discharged better, meanwhile, the rotary water flow drives the impeller 16 to rotate, the rotary sieve 17 is driven to rotate, when coarse slime falls onto the rotary sieve 17 after entering from the feeding channel 6, the coarse slime is firstly screened to a certain extent, and then the screened coarse slime is uniformly diffused all around to be sorted on the next step.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An interference bed separator comprises a separator (1), an overflow collecting tank (2), a feeding well (3), an interference plate (4), a discharge valve (5), a feeding channel (6), a water inlet channel (7), an overflow port (8), an actuator (9), a connecting line (10), a density detector (11), a controller (12), supporting legs (13), a water bearing (14), a hollow shaft (15), an impeller (16), a rotary screen (17), a cover cap (18) and a supporting device (19), wherein the overflow collecting tank (2) is fixedly arranged on the outer side of the top of the separator (1), the feeding well (3) is fixedly arranged at the center of the top of the separator (1), the feeding channel (6) is fixedly connected with the left side of the feeding well (3), the feeding channel (6) has a certain inclination, the actuator (9) is fixedly arranged on the upper surface of the feeding well (3), bleeder valve (5) fixed mounting is in the center of sorter (1) bottom, density detector (11) hang in the middle part of sorter (1) inner chamber, controller (12) are connected with executor (9) and density detector (11) respectively through connecting wire (10), executor (9) are connected its characterized in that through connecting wire (10) and bleeder valve (5): the interference plate (4) is fixedly arranged at the bottom of the separator (1), the interference plate (4) comprises an inclined plate (41) and a water inlet hole (42), the inclined plate (41) has a certain inclination, the side edge of the top of the inclined plate (41) is fixedly connected with the side wall of the inner cavity of the separator (1), the bottom end of the inclined plate (41) is fixedly connected with the bottom surface of the inner cavity of the separator (1), a hollow layer is formed between the separator (1) and the interference plate (4), the water inlet hole (42) is uniformly arranged on the inclined plate (41) and communicates the hollow layer with the inner cavity of the separator (1), the water inlet hole (42) is thirty degrees in a rotary inclined direction, the height of the interference plate (4) is less than the height 200mm of the density detector (11), four support legs (13) are respectively fixedly connected with the bottom of the separator (1), and the top ends of the support legs (13) are fixedly connected with an underwater bearing (14), hollow shaft (15) and aquatic bearing (14) fixed sleeve joint, impeller (16) fixed mounting is in the bottom of hollow shaft (15), rotary screen (17) fixed mounting is at the top of hollow shaft (15), cap (18) movable mounting is in the center at rotary screen (17) top, strutting arrangement (19) and the inner wall fixed connection of sorter (1) just are located the below of rotary screen (17).

2. A disturbed bed classifier as claimed in claim 1, wherein: the hollow shaft (15) and the rotary screen (17) are hollow, and the cap (18) is sleeved on the connecting line (10).

3. A disturbed bed classifier as claimed in claim 1, wherein: the bottom of the feeding well (3) is in an inverted frustum shape, a conical groove is formed in the center of the bottom of the sorting machine (1), and the maximum diameter of the conical groove is half of the diameter of the bottom of the sorting machine (1).

4. A disturbed bed classifier as claimed in claim 1, wherein: the maximum diameter of the rotary screen (17) is less than half of the diameter of the separator (1), and the diameter of the impeller (16) is equal to one third of the diameter of the separator (1).