CN214132162U - Desulfurization cyclone for power coal preparation plant - Google Patents

Abstract

The utility model discloses a be used for power coal preparation plant desulfurization swirler, including one-level swirler and second grade swirler, the up end of one-level swirler is provided with feed inlet and inlet, the side end face of one-level swirler is provided with first motor, the side end face of keeping away from first motor of one-level swirler is provided with first discharge gate, be provided with first hank dragon pole in the one-level swirler, first hank dragon pole and first motor key joint, the parcel has the electro-magnet in the lateral wall of one-level swirler, second grade swirler's side end face is provided with the second motor, the side end face that second motor was kept away from to second grade swirler is provided with the second discharge gate, second grade swirler's lower terminal surface is provided with the scum outlet. The utility model discloses add the electro-magnet in the lateral wall of one-level swirler and adsorb the pyrite, strengthened the desulfurization effect of equipment, reduced follow-up desulfurization cost, through first auger rod and scraper blade cooperation with middlings and the broken separation of impurity, improved the middlings quality, and promoted the raw coal rate of producing coal.

Description

Desulfurization cyclone for power coal preparation plant

Technical Field

The utility model belongs to the technical field of coal mine development, specifically be a be used for power coal preparation plant desulfurization swirler.

Background

In coal mining, most of the non-pressure feeding cyclones are used for separating and cleaning coal, a plurality of charging barrels are transferred into a bin, and the coal needs to be subjected to desulfurization operation to reduce the caused atmospheric pollution.

The authorized bulletin number CN208512823U discloses a coal preparation swirler for a power coal preparation plant, which comprises a coal preparation swirler body, wherein a coal chute is arranged at the outlet of the coal preparation swirler body, a coal separation barrel is arranged at the bottom of the coal chute, a plurality of outlets are arranged at the bottom of the coal separation barrel, coal guide grooves connected with inlets of a medium coal bunker and a clean coal bunker are respectively arranged at the outlets at the bottom of the coal separation barrel, and a hydraulic push rod is arranged at the position, close to the outlets, of the coal separation barrel.

According to the coal dressing cyclone for the power coal dressing bin, the cyclone only screens coal and does not perform desulfurization operation, about two thirds of sulfur in the coal reaches pyrite in raw coal, so that the operation is complex during the subsequent desulfurization of the coal, and the desulfurization cost is greatly increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be used for power coal preparation plant desulfurization swirler to solve the problem that prior art well coal swirler does not have the desulfurization effect.

In order to achieve the above object, the utility model provides a following technical scheme: a desulfurization cyclone for a power coal preparation plant comprises a primary cyclone and a secondary cyclone, wherein the upper end surface of the primary cyclone is provided with a feed inlet and a liquid inlet, a first motor is arranged on the side end surface of the primary cyclone, a first discharge hole is arranged on the side end surface of the primary cyclone far away from the first motor, a first auger rod is arranged in the primary cyclone, the first auger rod is in key joint with a first motor, the side wall of the first-stage swirler is internally wrapped with an electromagnet, the first-stage swirler and the second-stage swirler are communicated and connected through a liquid supplementing pipe, a liquid supplementing port is arranged on the liquid supplementing pipe, a second motor is arranged on the side end surface of the secondary cyclone, and a second discharge hole is formed in the end face, far away from the second motor, of the secondary cyclone, a second auger rod is arranged in the secondary cyclone, and a slag discharge hole is formed in the lower end face of the secondary cyclone.

Preferably, be provided with first spiral flabellum and second spiral flabellum on first hank dragon pole and the second hank dragon pole, first spiral flabellum and second spiral flabellum's spiral opposite direction, second spiral flabellum is cyclic annular helical structure, and second spiral flabellum look sideways at the internal diameter and be greater than first spiral flabellum look sideways at the diameter, adds suspension in to the one-level swirler through the inlet, and the cleaned coal floats in the upper end of suspension, and first spiral flabellum transports coal from the right side to the left, discharges through first discharge gate, and other impurity rubbles etc. sink to be transported by second spiral flabellum from the left side to the right side in the bottom.

Preferably, the electromagnet wraps the side wall of the primary cyclone, part of the middlings wrap pyrite, and the electromagnets adsorb the pyrite, so that the middlings containing the pyrite are attached to the inner wall of the primary cyclone and are transported to the right through the second spiral fan blades.

Preferably, the first-stage cyclone is provided with a scraper on the inner side of the side end surface close to the motor end, the scraper is two rectangular stainless steel rods, the cross section of the scraper is in an arc-shaped structure, the polarity of the side end surface of the first-stage cyclone is strongest due to the electromagnetic induction characteristic, so that the side end surface has the strongest magnetism, pyrite is adsorbed on the side end surface, and the pyrite is hung in the liquid supplementing pipe through the scraper.

Preferably, the inner end surface of the liquid supplementing pipe is tangent to the front view of the side end surface of the primary cyclone, and when the first auger rod pushes the pyrite to the side end surface of the primary cyclone, the pyrite is mutually extruded on the side end surface of the primary cyclone, so that the middlings containing the pyrite are extruded and crushed and are pushed into the liquid supplementing pipe by the scraper.

Preferably, the primary cyclone is of a cylindrical barrel-shaped structure, so that the first auger rod and the side end face thereof can extrude raw coal to be crushed conveniently, the secondary cyclone is of a conical barrel-shaped structure, so that the middlings can be discharged through the overflow of the second discharge port conveniently, and the gangue and the magnetite are discharged through the slag discharge port from the bottom inclined plane of the secondary cyclone.

Preferably, the electromagnet has direct current for passing through two ends of a copper coil wound on the outer end of the iron core, the first motor and the second motor are ECP84104T in model, and the first motor and the second motor are connected with the power strip through wires to supply power.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses add the electro-magnet in the lateral wall of one-level swirler and adsorb the pyrite, strengthened the desulfurization effect of equipment greatly, reduced follow-up desulfurization cost, through first auger rod and scraper blade cooperation with middlings and the broken separation of impurity, improved the middlings quality greatly, and promoted the raw coal rate of production greatly.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

fig. 2 is a schematic view of the scraper structure of the present invention.

In the figure: 1 primary cyclone, 11 feed inlets, 12 liquid inlets, 13 electromagnets, 14 first discharge outlets, 15 first auger rods, 151 first spiral fan blades, 152 second spiral fan blades, 16 first motors, 17 scraping plates, 2 secondary cyclones, 21 liquid supplementing pipes, 211 liquid supplementing ports, 22 second discharge outlets, 23 second motors, 24 slag discharging ports and 25 second auger rods.

Detailed Description

Referring to fig. 1, a desulfurization cyclone for a power coal preparation plant comprises a primary cyclone 1 and a secondary cyclone 2, wherein the upper end surface of the primary cyclone 1 is provided with a feed inlet 11 and a feed inlet 12, the side end surface of the primary cyclone 1 is provided with a first motor 16 through a bolt, the side end surface of the primary cyclone 1 far away from the first motor 16 is provided with a first discharge outlet 14, the primary cyclone 1 rotates in a first screw rod 15, the first screw rod 15 is in key joint with the first motor 16, the side wall of the primary cyclone 1 is wrapped with an electromagnet 13, the primary cyclone 1 and the secondary cyclone 2 are in through connection through a liquid supplementing pipe 21, the liquid supplementing pipe 21 is provided with a liquid supplementing port 211, the side end surface of the secondary cyclone 2 is provided with a second motor 23 through a bolt, the side end surface of the secondary cyclone 2 far away from the second motor 23 is provided with a second discharge outlet 22, the secondary cyclone 2 rotates in connection with a second screw rod 25, the lower end surface of the secondary cyclone 2 is provided with a slag discharge port 24.

Referring to fig. 1, a first spiral fan 151 and a second spiral fan 152 are welded on the first auger rod 15 and the second auger rod 25, the spiral directions of the first spiral fan 151 and the second spiral fan 152 are opposite, the second spiral fan 152 is in an annular spiral structure, the side-view inner diameter of the second spiral fan 152 is larger than the side-view diameter of the first spiral fan 151, suspension liquid is added into the primary cyclone 1 through the liquid inlet 12, clean coal floats at the upper end of the suspension liquid, the first spiral fan blade 151 transports the coal from right to left and is discharged through the first discharge port 14, other impurity crushed stones and the like are deposited at the bottom and are transported from left to right by the second spiral fan blade 152, the electromagnet 13 is wrapped on the side wall of the primary cyclone 1, part of the medium coal is wrapped with pyrite, the pyrite is adsorbed by the electromagnet 13, so that the middlings containing the pyrite is attached to the inner wall of the primary cyclone 1 and transported to the right by the second spiral fan 152.

Referring to fig. 2, a scraper 17 is rotatably connected to the inner side of the side end surface of the primary cyclone 1 near the motor end, the scraper 17 is two rectangular stainless steel rods, the cross section of the scraper 17 is in an arc-shaped structure, and due to the electromagnetic induction characteristic, the polarity of the side end surface of the primary cyclone 1 is the strongest, so that the side end surface has the strongest magnetism, pyrite is adsorbed on the side end surface, and the pyrite is suspended into the liquid replenishing pipe 21 through the scraper 17.

The working principle of the scheme is as follows: the utility model discloses when using, let in the raw coal in one-level swirler 1 by feed inlet 11, add the suspension that gangue powder and water mixture made through inlet 12, clean coal floats in the raw coal in the suspension upper end, the gangue sinks the bottom, the middlings suspension is in the suspension, adsorb the middlings that contains the magnetite in one-level swirler 1 bottom through electro-magnet 13, then separate it through first auger rod 15, clean coal discharges through first discharge gate 14, gangue and magnetite flow into second grade swirler 2 in through fluid infusion mouth 211, add the suspension solute through fluid infusion mouth 211, reinforcing suspension density, thereby make the middlings can float in the suspension upper end, after second auger rod 25 separates, the middlings is discharged by second discharge gate 22, other impurity is discharged by row cinder notch 24.

The utility model discloses add electro-magnet 13 in the lateral wall of one-level swirler 1 and adsorb the pyrite, strengthened the desulfurization effect of equipment greatly, reduced follow-up desulfurization cost, through first auger rod 15 and the broken separation of scraper blade 17 cooperation with middlings and impurity, improved the middlings quality greatly, and promoted the raw coal rate of coal production greatly.

Claims (6)

1. The utility model provides a be used for power coal preparation plant desulfurization swirler, includes one-level swirler (1) and second grade swirler (2), its characterized in that: the upper end face of the primary cyclone (1) is provided with a feeding hole (11) and a liquid inlet (12), the side end face of the primary cyclone (1) is provided with a first motor (16), the side end face of the primary cyclone (1) far away from the first motor (16) is provided with a first discharge hole (14), a first auger rod (15) is arranged in the primary cyclone (1), the first auger rod (15) is in key joint with the first motor (16), an electromagnet (13) is wrapped in the side wall of the primary cyclone (1), the primary cyclone (1) and the secondary cyclone (2) are in through connection through a liquid supplementing pipe (21), a liquid supplementing port (211) is arranged on the liquid supplementing pipe (21), the side end face of the secondary cyclone (2) is provided with a second motor (23), and the side end face of the secondary cyclone (2) far away from the second motor (23) is provided with a second discharge hole (22), a second auger rod (25) is arranged in the secondary cyclone (2), and a slag discharge port (24) is arranged on the lower end face of the secondary cyclone (2).

2. The desulfurization cyclone for a power coal preparation plant according to claim 1, wherein: first spiral flabellum (151) and second spiral flabellum (152) are provided with on first auger rod (15) and second auger rod (25), the spiral opposite direction of first spiral flabellum (151) and second spiral flabellum (152), second spiral flabellum (152) are cyclic annular helical structure, and the side that looks at internal diameter of second spiral flabellum (152) is greater than the side that looks at first spiral flabellum (151) and looks at the diameter.

3. The desulfurization cyclone for a power coal preparation plant according to claim 1, wherein: the electromagnet (13) is wrapped on the side wall of the primary cyclone (1).

4. The desulfurization cyclone for a power coal preparation plant according to claim 1, wherein: the scraper (17) is arranged on the inner side of the end face, close to the motor end, of the primary cyclone (1), the scraper (17) is two rectangular stainless steel rods, and the section of the scraper (17) is of an arc-shaped structure.

5. The desulfurization cyclone for a power coal preparation plant according to claim 1, wherein: the inner end surface of the liquid supplementing pipe (21) is tangent to the front view of the side end surface of the primary cyclone (1).

6. The desulfurization cyclone for a power coal preparation plant according to claim 1, wherein: the primary cyclone (1) is of a cylindrical barrel-shaped structure, and the secondary cyclone (2) is of a conical barrel-shaped structure.

Images