CN212092784U - Durable horizontal scraper discharge centrifuge - Google Patents

Abstract

The utility model discloses a durable horizontal scraper centrifuge of unloading belongs to centrifugal separation technical field, installs basket, characterized in that in its first pivot: the screen basket comprises a frustum-shaped screen basket, the screen basket is composed of more than two support rings and more than two support columns, the support rings are coaxially and hierarchically arranged according to the sequence of the inner aperture from large to small, the support columns connect the support rings which are hierarchically distributed into a whole, each support column is provided with a first extending section and a second extending section, the first extending section exceeds the maximum support ring, the second extending section exceeds the minimum support ring, the first extending section is fixed on the aperture ring, the second extending section is fixed on the bottom plate, and the bottom plate is provided with a mounting hole for mounting a rotating shaft; and a frame is enclosed by the opening ring and the maximum support ring, the minimum support ring and the bottom plate and the two adjacent support rings, and ceramic grid pieces are arranged on the frame and connected into a screen. The centrifuge can reduce the unbalance of the screen basket and can partially replace the ceramic grid.

Description

Durable horizontal scraper discharge centrifuge

Technical Field

The utility model belongs to the technical field of centrifugal separation, concretely relates to durable horizontal scraper centrifuge of unloading.

Background

The centrifugal machine is a mechanical device which separates two liquids with different densities and immiscible with each other from a suspension of solid particles by utilizing centrifugal force generated when a rotating drum drives materials in the drum to rotate at high speed. The horizontal scraper discharge centrifuge has the advantages of short single cycle time, large treatment capacity, capability of obtaining relatively dry filter residues, good washing effect and the like, and is widely applied to separation of flotation clean coal, primary coal slime, secondary coal slime and other solid-liquid two-phase slurry.

At present, a screen basket of a horizontal scraper discharge centrifuge is generally divided into a screen cylinder, a screen basket and a connecting plate. During installation, the connecting plate is installed on a rotating shaft of the centrifuge, the screen basket is connected onto the connecting plate, and the screen cylinder is connected onto the screen basket. The screen basket with the structure accumulates unbalance amount in the installation process, influences the running stability of equipment and adversely influences the service life of the screen basket; on the other hand because a sieve section of thick bamboo adopts wedge-shaped stainless steel sieve plate welding to form mostly, the wearability is relatively poor, easy damaged to in case damaged, need change whole sieve, it is extravagant to have increased the consumptive material.

Disclosure of Invention

The utility model aims to solve the technical problem that a durable horizontal scraper centrifuge of unloading is provided, can reduce the unbalance amount of basket to can locally change ceramic bars piece.

In order to solve the technical problem, the technical scheme of the utility model is that: the design is a durable horizontal scraper centrifuge of unloading, including the frame, is equipped with first pivot in the frame, and the basket, its characterized in that are installed to first power device, the other end are connected to the one end of first pivot: the screen basket comprises a frustum-shaped screen basket, the screen basket is composed of more than two support rings and more than two support columns, the support rings are coaxially and hierarchically arranged according to the sequence of the inner aperture from large to small, the support columns connect the support rings which are hierarchically distributed into a whole, each support column is provided with a first extending section and a second extending section, the first extending section exceeds the maximum support ring, the second extending section exceeds the minimum support ring, the first extending section is fixed on the aperture ring, the second extending section is fixed on the bottom plate, and the bottom plate is provided with a mounting hole for mounting a rotating shaft;

and a frame is enclosed by the opening ring and the maximum support ring, the minimum support ring and the bottom plate and the two adjacent support rings, and ceramic grid pieces are arranged on the frame and connected into a screen.

Preferably, the first extending section is welded on the collar, and the second extending section is welded on the bottom plate.

Preferably, the ceramic grid is a high-aluminum ceramic grid.

Preferably, the high-aluminum ceramic grid is adhered to the frame.

Preferably, at least one support ring has an outwardly projecting flange, the flange having a through hole formed therein, and the support post being located in the through hole.

Preferably, the supporting column is a cylinder.

Preferably, a through hole is formed in the first rotating shaft, a second rotating shaft is installed in the through hole, one end of the second rotating shaft is connected with the second power device, and a scraper device is installed at the other end of the second rotating shaft.

Preferably, the frame is further provided with a first shell, the first shell is wrapped on the periphery of the screen basket, and a drainage chamber is enclosed between the first shell and the screen basket;

be equipped with the baffle on the first casing, the baffle divides the flowing back room into first flowing back room and second flowing back room along the axial of basket.

Preferably, a second shell is installed on the side wall of the first shell, the second shell covers the opening ring to form a discharge chamber, and a protective layer is arranged on the peripheral wall of the discharge chamber.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the opening ring, the screen basket and the bottom plate are fixed into a whole screen basket, so that the processing quality of the screen basket is convenient to control; on the other hand, the amount of unbalance accumulated in the installation process of the split type screen basket in the prior art is avoided, so that the centrifuge runs more stably, and the natural service life of the centrifuge is prolonged; meanwhile, the screen is formed by arranging and connecting the ceramic grid pieces, so that the wear resistance of the screen is enhanced, local replacement can be performed after the screen is worn, and consumable waste caused by replacement of the whole screen is reduced.

2. Because choose welding mode for use between support ring and the support column between sieve basket and the mouth circle, between sieve basket and the bottom plate and in the sieve basket, not only strengthened fixed steadiness, still technical maturity is convenient for realize.

3. Because the ceramic grid plate is made of high-alumina ceramic grid plate, the wear resistance of the ceramic grid plate can be further improved, and the service life of the ceramic grid plate can be prolonged.

4. Because at least one support ring has the edge of a wing of stretching outwards, opens in the edge of a wing and is equipped with the through-hole, and the support column is located the through-hole, not only retrains the position of support column for the support ring, and each support column of being convenient for can pinpoint, can also strengthen the joint strength between support ring and the support column.

5. Because the support column chooses the cylinder structure for use, under the condition of same materials, can strengthen the bending resistance bearing capacity of support column, increase its antifatigue intensity, it is more durable.

6. Because the second pivot is worn to establish in first pivot to connect power device separately, can have under the prerequisite of rotational speed difference between first pivot and second pivot, make centrifuge compact more structurally, can operate more steadily, can reduce again and take up an area of the space.

7. The baffle divides the liquid discharge chamber into the first liquid discharge chamber and the second liquid discharge chamber, so that on one hand, the baffle plays a role of a reinforcing rib, and the strength of the first shell is enhanced; on the other hand, the baffle can prevent the moisture thrown out from the bottom of the screen basket from sputtering back to the material in the opening of the screen basket, and the material dehydration effect is further improved.

8. The protective layer is arranged on the peripheral wall of the discharge chamber, so that the abrasion effect of materials centrifugally thrown out of the opening of the screen basket can be reduced, and the service life of the discharge chamber is prolonged.

9. The utility model discloses make whole operation more steady, can improve service life to can change ceramic grid piece locally, can on-the-spot quick maintenance change, shorten the man-hour of maintenance, be convenient for popularize and apply in this area.

Drawings

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

FIG. 2 is a view in the direction A of FIG. 1;

FIG. 3 is a schematic perspective view of a screen basket;

FIG. 4 is a view from the direction B of FIG. 3;

fig. 5 is a cross-sectional view C-C of fig. 4.

The labels in the figure are: 1. a frame; 2. a first rotating shaft; 3. a second rotating shaft; 4. a first housing; 5. a baffle plate; 6. a first liquid discharge chamber; 7. a second discharge chamber; 8. a screen basket; 81. a mouth ring; 82. a support ring; 83. a support pillar; 84. a flange; 85. a base plate; 86. a high aluminum ceramic grid; 89. mounting holes; 9. a scraper device; 10. a second housing; 11. a discharge chamber; 12. a chute; 13. a first power unit; 14. and a second power device.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses to be close to one side definition at 2 centers of first pivot for the inboard, the opposite side definition that will keep away from 2 centers of first pivot correspondingly is the outside.

As shown in fig. 1 and 2, the utility model discloses be equipped with first pivot 2 in frame 1, first power device 13 is connected to the one end of first pivot 2, basket 8 is installed to the other end, as shown in fig. 3, fig. 4 and 5, the screen basket has been set up in the basket 8, the screen basket comprises nine support rings 82 and eight support columns 83, nine support rings 82 are arranged according to interior aperture by big order coaxial line stratiform to little, eight support columns 83 are along the circumference evenly distributed of support rings 82, it links into an organic whole with nine support rings 82 to be the slope form, so make the screen basket wholly be the frustum form. The support ring 82 at the lowermost level has an outwardly projecting flange 84, the flange 84 having a through hole therein, and the support column 83 being located in the through hole. The support column 83 has a first extension section and a second extension section, the first extension section exceeds the setting of the maximum support ring 82, the second extension section exceeds the setting of the minimum support ring 82, the first extension section is welded on the mouth ring 81, the second extension section is welded on the bottom plate 85, and the bottom plate 85 is provided with a mounting hole 89 for mounting a rotating shaft. A frame is enclosed by the opening ring 81 and the maximum support ring 82, the minimum support ring 82 and the bottom plate 85, and the two adjacent support rings 82, high-alumina ceramic grid pieces 86 are adhered on the frame, and the high-alumina ceramic grid pieces 86 are arranged and connected to form a screen mesh.

In order to make centrifuge's structure compacter, the utility model discloses seted up the through-hole in first pivot 2, installation second pivot 3 in the through-hole, second power device 14, other end installation scraper device 9 are connected to 3 one end of second pivot, and scraper device 9 is located basket 8. A first shell 4 is further mounted on the frame 1, the first shell 4 is wrapped on the periphery of the screen basket 8, and a drainage chamber is enclosed between the first shell 4 and the screen basket 8; the first casing 4 is provided with a baffle 5, and the baffle 5 divides the drain chamber into a first drain chamber 6 and a second drain chamber 7 in the axial direction of the basket 8. A second casing 10 is mounted on the side wall of the first casing 4, the second casing 10 covers the opening ring 81 to form a discharge chamber 11, and a protective layer is provided on the peripheral wall of the discharge chamber 11.

During the use, start first power device 13 and second power device 14, first pivot 2 drives basket 8 and rotates, second pivot 3 drives scraper device 9, have a rotational speed difference between basket 8 and scraper device 9, send into the inner chamber of scraper device 9 with the moisture material through chute 12, the material passes through in scraper device 9's the gap gets into basket 8, under the effect of centrifugal force, force water and tiny material in the material to see through the screen cloth and get into the flowing back room and discharge, the material of basket 8 inner wall is then scraped the back by scraper device 9 with the help of basket 8's inclination, convey the main aspects from basket 8's tip and get into row material room 11 and discharge under the effect of centrifugal force, accomplish the dehydration of material.

When the material is discharged from the opening ring 81, the material is easy to throw around under the action of centrifugal force, and the protective layer is arranged on the peripheral wall of the discharge chamber 11, so that the abrasion effect of the thrown material can be reduced, and the service life of the discharge chamber 11 is prolonged.

In the above-mentioned basket 8, except adopting the welding mode, can also select other fixed modes for use between support column 83 and mouth circle 81, support column 83 and bottom plate 85 and support column 83 and the support ring 82, the preferred welding mode of course can not only strengthen fixed steadiness, still is convenient for realize because the technology is mature. The supporting column 83 is preferably of a cylindrical structure, and under the condition of the same material, the bending resistance and pressure bearing capacity of the supporting column 83 can be enhanced, the fatigue resistance of the supporting column 83 is increased, and the supporting column is durable. The high-alumina ceramic grid 86 can be fixed on the frame in a sticking way, and other connecting ways can be selected as long as the high-alumina ceramic grid can be connected on the frame and arranged to form a screen, no specific requirements are made on the specific connecting way, and only the bonding is a convenient implementation way.

The first power device 13 and the second power device 14 are both motors.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims (9)

1. The utility model provides a durable horizontal scraper centrifuge of unloading, includes the frame, is equipped with first pivot in the frame, and the basket, its characterized in that are installed to first power device, the other end are connected to the one end of first pivot: the screen basket comprises a frustum-shaped screen basket, the screen basket is composed of more than two support rings and more than two support columns, the support rings are coaxially and hierarchically arranged according to the sequence of the inner aperture from large to small, the support columns connect the support rings which are hierarchically distributed into a whole, each support column is provided with a first extending section and a second extending section, the first extending section exceeds the maximum support ring, the second extending section exceeds the minimum support ring, the first extending section is fixed on the aperture ring, the second extending section is fixed on the bottom plate, and the bottom plate is provided with a mounting hole for mounting a rotating shaft;

and a frame is enclosed by the opening ring and the maximum support ring, the minimum support ring and the bottom plate and the two adjacent support rings, and ceramic grid pieces are arranged on the frame and connected into a screen.

2. The durable horizontal scraper discharge centrifuge of claim 1, wherein: the first extending section is welded on the collar, and the second extending section is welded on the bottom plate.

3. The durable horizontal scraper discharge centrifuge of claim 2, wherein: the ceramic grid plate is a high-aluminum ceramic grid plate.

4. The durable horizontal scraper discharge centrifuge of claim 3, wherein: the high-aluminum ceramic grid plate is adhered to the frame.

5. The durable horizontal scraper discharge centrifuge of claim 4, wherein: at least one support ring is provided with a flange which protrudes outwards, a through hole is arranged in the flange, and the support column is positioned in the through hole.

6. The durable horizontal scraper discharge centrifuge of claim 5, wherein: the support column is a cylinder.

7. The durable horizontal scraper discharge centrifuge of any one of claims 1 to 6, wherein: a through hole is formed in the first rotating shaft, a second rotating shaft is installed in the through hole, one end of the second rotating shaft is connected with a second power device, and a scraper device is installed at the other end of the second rotating shaft.

8. The durable horizontal scraper discharge centrifuge of any one of claims 1 to 6, wherein: the frame is also provided with a first shell, the first shell wraps the periphery of the screen basket, and a drainage chamber is enclosed between the first shell and the screen basket;

be equipped with the baffle on the first casing, the baffle divides the flowing back room into first flowing back room and second flowing back room along the axial of basket.

9. The durable horizontal scraper discharge centrifuge of claim 8, wherein: the side wall of the first shell is provided with a second shell, the second shell covers the opening ring to form a discharge chamber, and the peripheral wall of the discharge chamber is provided with a protective layer.

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