CN115739413A - Distributor for disc separator - Google Patents

Abstract

The invention provides a distributor for a disc separator, which changes the traditional inner material distribution mode into an outer material distribution mode; after the novel distributor structure is used, on one hand, the distributor structure is simple and effective, and the distributor distributes materials more uniformly, so that the material separation is facilitated; on the other hand, the processing flow is saved, the distributor is simpler to process, and the processing cost can be effectively saved; moreover, under the condition that other sizes of the rotary drum are not changed, more discs can be installed, and therefore the separation effect is improved.

Description

Distributor for disc separator

Technical Field

The disclosure relates to a structural design of a distributor for a disc separator, belonging to the technical field of separation machinery.

Background

The disc separator is a high-speed sedimentation centrifuge, when in work, a main functional component drum rotates around a rotating shaft center at a high speed, the disc separator can quickly and effectively separate two kinds of liquid and solid mixtures with different specific weights by high rotating speed and generated strong centrifugal force, and the disc separator is widely used in the industries of ships, food, medicines, chemical engineering, textile, environmental protection and the like due to high-efficiency separation.

As shown in fig. 1, the disc separator mainly comprises a motor 1, a frame 2, a transmission system 3, a rotary drum system 4, an in-out device 5, and the like. Wherein the rotary drum is a core and is a main separation functional component.

When the separator works, the separator drum rotates at a high speed, materials enter the distributor in the drum from the feeding pipe, are distributed through the designed channel of the distributor, flow into the disc inlet through the distribution channel and enter the disc group for separation. The light phase component (light liquid) moves upwards (towards the center of the rotary drum) along the disc gap, reaches the liquid flow channel close to the center, then upwards reaches the pump chamber, and is discharged out of the machine by the central pump or directly thrown out of the rotary drum to the collecting flow channel; the heavy phase components (generally solid particles) in the material leave the disc set along the disc gap outward (away from the center of the rotary drum) to reach the slag accumulation cavity of the rotary drum, and then are discharged out of the rotary drum through the piston slag discharging mechanism, and enter the slag collection flow channel and flow out of the machine.

In the conventional distributor design of a separator, as shown in fig. 4a and 4b, the distributor is generally designed with long ribs from top to bottom, and the inner dimension surface of the ribs is directly used as a positioning surface for the drum body. Therefore, gaps among the ribs of the distributor and between the rotary drum body and the piston are used as material distribution channels to distribute feeding materials and then enter the disc group for separation, but the distribution channels are irregular from inside to outside, the cross section area is suddenly changed, the material distribution is unfavorable, and the separation effect is influenced.

The distributor structure for the disc separator is designed, avoids the defects of the distribution flow channel, changes the traditional inner distribution mode into the outer distribution mode, enables the sectional area of the distribution flow channel to be uniform and slowly changed, improves the distribution effect and improves the separation effect.

Disclosure of Invention

The technical problem to be solved by the present disclosure is to provide a structural design of a distributor for a disc separator. The distributor for the disc type separator has the advantages that the defect of a traditional distributor flow channel is overcome, the traditional inner distribution mode is changed into the outer distribution mode, the sectional area of the distribution flow channel is uniformly and slowly changed, the distribution effect is improved, and the separation effect is improved. Meanwhile, the distributor has a simpler structure and is easier to process, and the processing cost can be effectively saved.

A distributor for a butterfly separator comprises an upper body and a lower body, wherein the shape of the inner surface of the lower body is matched with that of a rotating drum body; a plurality of discharging distribution holes communicated with the inner side and the outer side of the lower body are circumferentially distributed on the outer side of the lower body, and a connecting groove is vertically arranged on the outer side opening side of the lower body of each discharging distribution hole; when the disk group is assembled on the distributor, the disk at the lowest end of the disk group and the connecting groove form a distribution flow channel far away from the center direction.

When the separator works, the separator drum rotates at a high speed, materials enter the distributor in the drum from the feeding pipe, are distributed through the designed channel of the distributor, flow into the disc inlet through the distribution channel and enter the disc group for separation. The light phase component (light liquid) moves upwards (towards the center of the rotary drum) along the disc gap, reaches the liquid flow channel close to the center, then upwards reaches the pump chamber, and is discharged out of the machine by the central pump or directly thrown out of the rotary drum to the collecting channel; the heavy phase components (generally solid particles) in the material leave the disc set along the disc gaps outward (away from the center of the rotary drum) to reach the slag accumulation cavity of the rotary drum, and are discharged out of the rotary drum through the piston slag discharge mechanism, and enter the slag collection flow channel and flow out of the machine.

In the conventional distributor design of the separator, the distributor is generally designed with long ribs from top to bottom, and the inner dimension surface of the ribs is directly used as a positioning surface with the rotary drum body. Thus, gaps among the ribs of the distributor and between the rotary drum body and the piston are used as material distribution channels to distribute feeding materials and then enter the disc group for separation, but the distribution channels are irregular from inside to outside, and the cross section area is suddenly changed, so that the distribution of the materials is unfavorable, and the separation effect is influenced.

The distributor structure for the disc separator is designed, avoids the defects of the distribution flow channel, changes the traditional inner distribution mode into the outer distribution mode, enables the sectional area of the distribution flow channel to be uniform and slowly changed, improves the distribution effect and improves the separation effect. The distributor consists of an external positioning rib, an upper body, an internal rib, a lower body, a discharge distribution hole, a connecting groove, a positioning surface and the like.

The distributor for the disc separator is characterized in that a plurality of discharging distribution holes which are communicated internally and externally are designed at the upper part of the lower body of the distributor; the outer surface of the lower body of the distributor for the disc separator is provided with a plurality of connecting grooves which correspond to and are connected with the discharging and distributing holes. The positioning surfaces of the distributor and the rotary drum body for the disc type separator are solid surfaces, and no rib is arranged inside and outside the lower body of the distributor.

Furthermore, the discharging and distributing holes are circumferentially and uniformly distributed on the lower body; the connecting grooves are connected with the discharging distribution holes and are equal in number. The connecting groove has the same or similar sectional area in the flowing normal direction as the discharging and distributing hole, and the connecting groove has uniform change in the sectional area in the flowing normal direction.

In order to ensure that the materials are uniformly distributed and the flow velocity of the materials in the distribution flow channel is stable and has no sudden change, the discharging distribution holes are designed to be uniformly distributed; the connecting grooves are connected with the discharging distribution holes in equal number, the sectional area of the connecting grooves in the flowing normal direction is equal to or close to that of the discharging distribution holes, and the sectional area is uniformly changed without sudden change.

Furthermore, the distributor mainly comprises an upper body and an external positioning rib standing outside the upper body, wherein the lower end part of the upper body is provided with a radially expanded lower body, the inner wall of the joint of the upper body and the lower body is distributed with internal ribs, the discharging distribution holes are circumferentially and uniformly distributed on the lower body, and the connecting groove is arranged at an opening on the outer side of the lower body of each discharging distribution hole; the inner surface of the lower body is provided with a positioning surface matched with the shape of the rotary drum body; when the distributor works, materials reach the distribution flow channel outside the lower body of the distributor through the discharge distribution holes and flow outwards through the distribution flow channel to reach the disc group for separation.

In the actual work of the separator, the rotary drum of the separator rotates at a high speed, materials enter the distributor at the center of the rotary drum from the feeding pipe, the novel distributor is different from a traditional distributor, ribs are not arranged in the lower body of the novel distributor, the surfaces of the solids and the positioning surface of the rotary drum are used for positioning, the flow channel space in the lower body of the traditional distributor is not provided, and the materials cannot cross the lower edge of the distributor from the flow channel space in the lower body of the distributor to reach the disc group for separation like the traditional distributor. The material can only reach the outer part of the lower body of the distributor through a plurality of discharging distribution holes with the same size and far from the center direction, and the bottommost disc in the disc group is tightly attached to the outer part of the lower body of the distributor, so that a connecting groove designed on the outer part of the lower body of the distributor is connected with the discharging distribution holes, flow channels far from the center direction are formed on the bottom surfaces of the connecting groove and the bottommost disc, and the number of the flow channels is equal to that of the discharging distribution holes; after the material reaches the upper end of the connecting groove, the material flows outwards along the connecting groove in the connecting groove to reach the disc group for separation.

Compared with the prior art, the technical scheme adopted by the disclosure has the following technical effects: the structure changes the traditional inner material distribution mode into an outer material distribution mode; after the novel distributor structure is used, on one hand, the distributor structure is simple and effective, and the distributor distributes materials more uniformly, so that the material separation is facilitated; on the other hand, the processing flow is saved, the distributor is simpler to process, and the processing cost can be effectively saved; in addition, under the condition that other sizes of the rotary drum are not changed, more discs can be installed, and therefore the separation effect is improved.

Drawings

FIG. 1 is a schematic view of a disk separator assembly;

FIG. 2 is a schematic diagram of a drum structure of a conventional separator;

FIG. 3 is a schematic diagram of a separator drum structure for installing the distributor of the present patent;

FIGS. 4a and 4b are schematic views illustrating a conventional dispenser structure;

fig. 5a and 5b are schematic views of the dispenser of this patent.

In the figure, 1, a motor; 2. a frame; 3. a drive train; 4. a drum system; 5. an in-out device; 101. rotating the drum body; 102. a piston; 103. a slag accumulation cavity; 104. rotating a drum cover; 105. a disc set; 106a, a conventional dispenser; 106b, the novel dispenser of this patent; 107. a feed pipe; 108. a light phase liquid flow channel; 109. a centripetal pump; 110. a pump chamber; 201. an external positioning rib; 202. an upper body; 203. an internal rib; 204. a lower body; 205 inner lower ribs; 206. a discharge and distribution hole; 207. connecting grooves; 208a, a rib positioning surface; 208b, a positioning surface; the arrows in the figure indicate the material flow direction.

Detailed Description

The technical scheme of the present disclosure is further explained in detail with reference to the attached drawings:

the embodiment provides a distributor structure design for a disc separator, which changes the traditional inner distribution mode into an outer distribution mode; the distributor is composed of an external positioning rib 201, an upper body 202, an internal rib 203, a lower body 204, a discharge distribution hole 206, a connection groove 207, a positioning surface 208b and the like.

The distributor (figure 5a and figure 5 b) for the disc separator, near the upper part of the lower body of the distributor, is designed with several discharging and distributing holes 206 which are communicated internally and externally; the outer surface of the lower body 204 of the distributor for the disc separator is provided with a plurality of connecting grooves 207 which correspond to and are connected with the discharging and distributing holes 206. The positioning surface 208b of the distributor and the rotary drum body for the disc separator is a solid surface, and the inner part and the outer part of the lower body of the distributor have no ribs.

In practical operation of the separator, when the separator drum rotates at a high speed (as shown in fig. 2 and 3), material enters the distributor 106b at the center of the drum from the feeding pipe 107, and unlike the conventional distributor 106a, the novel distributor lower body 204 has no ribs inside, and is positioned by the solid surface and the drum positioning surface, without the flow channel space inside the conventional distributor lower body, and the material cannot reach the disc set 105 to be separated from the flow channel space inside the distributor lower body over the lower edge of the distributor like the conventional distributor. The material can only reach the outside of the distributor lower body 204 through a plurality of discharging distribution holes 206 with the same size and far from the center direction, and the bottommost disc in the disc group is tightly attached to the outside of the distributor lower body 204, so that the connecting groove 207 designed on the outside of the distributor lower body 204 is connected with the discharging distribution holes 206, the connecting groove 207 and the bottom surface of the bottommost disc form flow channels far from the center direction, and the number of the flow channels is equal to that of the discharging distribution holes 206; after reaching the upper end of the connecting trough 207, the material flows outwardly along the connecting trough to the disc stack 105 for separation.

In order to distribute the materials evenly and ensure that the flow velocity of the materials in the distribution flow channel is stable and has no sudden change, the discharging distribution holes 206 are designed to be evenly distributed; the connecting grooves 207 are connected with the discharging and distributing holes 206 in equal number, the cross section area of the connecting grooves 207 in the flow direction is equal to or close to that of the discharging and distributing holes 206, and the cross section area is uniformly changed without sudden change.

The prior conventional dispenser is internally designed with long ribs 205 from top to bottom and directly uses the inner dimension of the ribs as the locating surface 208a with the drum body. In this way, the gaps between the ribs of the distributor and between the drum and the piston are used as material distribution channels to distribute the fed materials, the materials from the flow channel space inside the lower distributor body 204 (along the inner ribs 203 and the inner lower ribs 205) are separated from the lower edge of the distributor to the disc set 105 (inner material distribution mode), but the distribution channels are irregular from inside to outside, and the cross-sectional areas are suddenly changed, which is unfavorable for material distribution, thereby affecting the separation effect.

In addition, because the distributor 106b for the disc separator has no ribs inside the lower body 204, the distributor is positioned by virtue of a solid body, has a simpler structure and is easy to machine and form. Compared with a rotary drum (figure 2) provided with a traditional distributor and a rotary drum (figure 3) provided with the distributor disclosed by the patent, under the condition that other sizes of the rotary drums are not changed, the height S marked in figure 3 is a saved height space which is used for mounting discs, the number of the discs can be increased by about 5%, the number of the discs directly influences the separating capacity (processing effect and processing capacity) of the separator, namely the novel distributor is used, the number of the discs is increased, and the processing capacity of the separator is improved.

The distributor for the disc separator avoids the defects of the traditional distributor flow channel, changes the traditional inner distribution mode into the outer distribution mode, enables the sectional area of the distribution flow channel to be uniform and slowly changed, improves the distribution effect and improves the separation effect. Meanwhile, the distributor is simpler in structure and easier to machine, and machining cost can be effectively saved.

The foregoing illustrates and describes the principles, principal features and advantages of the present disclosure. It will be understood by those skilled in the art that the present disclosure is not limited to the specific embodiments described above, which are intended merely to further illustrate the principles of the disclosure, and that various changes and modifications may be made to the disclosure without departing from the spirit and scope of the disclosure, which is intended to be covered by the claims. The scope of the disclosure is defined by the claims and their equivalents.

Claims (4)

1. A distributor for a butterfly separator, comprising an upper body (202) and a lower body (204), characterized in that: the shape of the inner surface of the lower body is matched with the shape of the rotary drum body; a plurality of discharging distribution holes (206) communicated with the inner side and the outer side of the lower body are circumferentially distributed on the outer side of the lower body, and a connecting groove (207) is vertically arranged on the outer side opening side of the lower body of each discharging distribution hole (206); when the disc stack is assembled to the distributor, the lowest disc of the disc stack and the connecting slot (207) enclose a distribution channel in a direction away from the center.

2. The distributor for a butterfly separator of claim 1, wherein: the discharging and distributing holes (206) are uniformly distributed on the lower body (204) in the circumferential direction; the connecting grooves (207) are connected with the discharging and distributing holes (206) in equal number, and the cross section area of the connecting grooves (207) in the normal flow direction is equal to or close to that of the discharging and distributing holes (206).

3. The distributor for a butterfly separator of claim 2, wherein: the connecting grooves (207) have a uniform cross-sectional area variation in the flow direction.

4. The distributor for a butterfly separator of claim 1, wherein: the distributor mainly comprises an upper body (202), external positioning ribs (201) standing outside the upper body, a lower body (204) radially expanded at the lower end of the upper body (202), internal ribs (203) distributed on the inner wall of the joint of the upper body and the lower body, discharging distribution holes (206) uniformly distributed on the lower body (204) in the circumferential direction, and connecting grooves (207) arranged at the opening of the outer side of the lower body of each discharging distribution hole (206); the inner surface of the lower body is provided with a positioning surface (208 b) matched with the shape of the rotary drum body; in operation, materials reach a distribution flow channel outside the distributor lower body (204) through the discharge distribution holes (206) and flow outwards through the distribution flow channel to reach the disc group (105) for separation.

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