CN215609534U

CN215609534U - Combined rake thickener mixer

Info

Publication number: CN215609534U
Application number: CN202121832211.3U
Authority: CN
Inventors: 华生生; 华宝付
Original assignee: Dongtai Tongxin Machinery Manufacturing Co ltd
Current assignee: Dongtai Tongxin Machinery Manufacturing Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-01-25
Anticipated expiration: 2031-08-06

Abstract

The utility model discloses a combined rake thickener mixer, which comprises a mixing shaft which is rotatably supported on a mixer frame and a sediment rake which is arranged at the lower part of the mixing shaft, wherein the mixing shaft is in transmission connection with a mixing driving device, the sediment rake comprises a rake body which is fixedly connected on the mixing shaft through a supporting cross rod, a plurality of rake blocks are arranged on the outer side edge of the rake body, the rake blocks are embedded in rake block embedding grooves 9 which are arranged on the outer side edge of the rake body, the rake blocks are arranged along the length direction of the outer side edge of the rake body, the outer side edge of each rake block is crossed with the outer side edge of the rake body in space, the working side surface of each rake block is obliquely arranged relative to the axis of the mixing shaft, and a plurality of rake teeth are arranged on the outer side edge of each rake block. The stirrer of the combined rake thickener can ensure that the sediment is conveniently conveyed to the discharge port at the center of the bottom of the thickener.

Description

Combined rake thickener mixer

Technical Field

The utility model relates to stirring equipment, in particular to a stirrer for a thickener.

Background

A stirrer for thickening machine has a rake under the stirring axle for pushing the deposit in the thickener by slow rotation of rake to make it be collected and discharged toward the central position of the bottom of the thickener. Such sediment harrow simple structure, preparation convenience, nevertheless not ideal to sediment exhaust promotion effect, its promotion sediment makes sediment pile up and relies on the dead weight gliding process downwards can produce great stirring effect to the solution in the thickener, and this can bring the influence to the sedimentation process of thickener.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned deficiencies of the prior art, the present invention provides a combined rake thickener mixer that facilitates the transfer of sediment to a discharge outlet in the center of the bottom of the thickener.

In order to solve the technical problem, the utility model provides a combined rake thickener mixer, which comprises a mixing shaft and a sediment rake, wherein the mixing shaft is rotatably supported on a mixer frame, the sediment rake is arranged at the lower part of the mixing shaft, the mixing shaft is in transmission connection with a mixing driving device, the sediment rake comprises a rake body, the rake body is fixedly connected onto the mixing shaft through a supporting cross rod, a plurality of rake blocks are arranged on the outer side edge of the rake body, the rake blocks are arranged along the length direction of the outer side edge of the rake body, the outer side edge of the rake block is crossed with the outer side edge space of the rake body, the working side surface of the rake block is obliquely arranged relative to the axis of the mixing shaft, and a plurality of rake teeth are arranged on the outer side edge of the rake block.

In the structure, the sediment rake comprises a rake body which is fixedly connected to the stirring shaft through a supporting cross rod, a plurality of rake blocks are arranged on the outer side edge of the rake body and are arranged along the length direction of the outer side edge of the rake body, so that the sediment rake pushes the sediment in the thickener not directly through the rake body but through the rake blocks arranged on the outer side edge of the rake body, the working state of the working side face of the rake block for pushing the sediment can be changed through different positions of the rake block relative to the stirring shaft, and the conveying process of the sediment in the thickener to the central discharge port at the bottom of the thickener is improved.

The outer side edge of the rake block is crossed with the outer side edge of the rake body in space, the working side surface of the rake block is obliquely arranged relative to the axis of the stirring shaft, the outer side edge of the rake block protrudes out of the outer side edge of the rake body, the pushing of sediment is ensured to be implemented by the rake block, and the working side surface of the rake block is obliquely arranged relative to the axis of the stirring shaft, so that when the rake block is driven by the stirring shaft to rotate along the circumferential direction, the working side surface of the rake block not only generates a pushing force tangential to the sediment along a rotating path, but also generates a pushing force axial to the stirring shaft, the combined force between the working side surface and the working side surface pushes the sediment to move towards the front lower part of the rotating motion of the rake block, thereby the sediment can be directly pushed towards the bottom of the thickening tank to be conveniently conveyed towards a discharge port at the bottom center of the thickener, and simultaneously, the great stirring effect on the solution in the thickener when the sediment slides downwards can be obviously reduced, and the sediment is respectively pushed by the rake blocks, the stirring effect generated when the sediment slides downwards is obviously reduced compared with the stirring effect generated when the sediment slides integrally, and the thickening and sedimentation process is more favorably and smoothly carried out.

And because the rake teeth are arranged on the outer side edge of the rake block, the rake teeth are favorable for pushing sediments, particularly for the sediments with strong adhesion, the sediments can be conveniently separated, the pushing resistance is reduced, and the sediments can be more smoothly conveyed to the discharge port.

In a preferred embodiment of the present invention, the harrow body is an elongated plate-like member, and the outer side edge of the harrow body is in the same plane as the axis of the stirring shaft. With this embodiment, the rake body of the elongated plate-like member facilitates installation and location determination of the rake block.

In another preferred embodiment of the present invention, a plurality of rake block embedding grooves are formed on the outer side edge of the rake body, and the rake blocks are embedded in the rake block embedding grooves. By adopting the embodiment, the connection and the positioning between the rake block and the rake body can be facilitated, and the connection is ensured to be stable and reliable.

In another preferred embodiment of the present invention, an angle γ between a side surface of the rake block embedding groove and a length direction of an outer side of the rake body is 20 ° to 45 °. By adopting the implementation mode, the rake can adapt to the requirement that the working side surface of the rake is obliquely arranged relative to the axis of the stirring shaft, and the conveying effect is good.

In a further preferred embodiment of the present invention, a connecting line a between a lower vertex of an outer side edge of one rake block and an upper vertex of an outer side edge of an adjacent rake block is perpendicular to the outer side edge of the rake body. By adopting the embodiment, gaps can not be generated between the upper rake block and the lower rake block, and the rake blocks can completely push sediments in the working range of the sediment rake without intervals along with the rotation of the rake body.

In another preferred embodiment of the present invention, the rake body is fixedly connected to the stirring shaft by two supporting cross bars. By adopting the embodiment, the connection between the harrow body and the stirring shaft is stable and reliable.

In a further preferred embodiment of the present invention, the support rail is fixedly connected to the stirring shaft by a connecting flange. By adopting the embodiment, the installation and the connection between the transverse rod and the stirring shaft can be facilitated.

In a further preferred embodiment of the present invention, two of the sediment rakes are uniformly distributed along the circumferential direction of the stirring shaft. By adopting the embodiment, the stirring shaft is stressed evenly in the working process and works stably.

Drawings

The combination rake thickener mixer of the present invention will be described in further detail with reference to the accompanying drawings and specific examples.

FIG. 1 is a schematic structural view of one embodiment of the combined rake thickener mixer of the present invention;

fig. 2 is a schematic structural view of a rake body and a rake block in the structure shown in fig. 1;

FIG. 3 is a left side view of the structure shown in FIG. 2;

fig. 4 is a partial enlarged view of a portion I of the structure shown in fig. 3.

In the figure: 1-stirring driving device, 2-stirring frame, 3-stirring shaft, 4-sediment rake, 5-rake body, 6-rake block, 7-rake teeth, 8-supporting cross bar and 9-rake block embedding groove.

Detailed Description

In the combined rake thickener mixer shown in fig. 1, a mixer frame 2 is positioned above a thickener tank, a mixer shaft 3 is rotatably supported on the mixer frame 2, the mixer shaft 3 is in transmission connection with a mixing driving device 1 installed on the mixer frame 2 through a coupler, the mixer shaft 3 extends into the thickener tank, a precipitate rake 4 is installed on the lower part of the mixer shaft 3, and two precipitate rakes 4 are uniformly distributed along the circumferential direction of the mixer shaft 3.

Sediment harrow 4 is including harrow body 5, and harrow body 5 is rectangular platelike component, and the outside limit of harrow body 5 is in the coplanar with the axis of (mixing) shaft 3 and parallel with the generating line of the circular cone portion inner wall of thickener tank lower part, and harrow body 5 links firmly on (mixing) shaft 3 through supporting horizontal pole 8, and the harrow body 5 of each sediment harrow 4 links firmly on (mixing) shaft 3 through two upper and lower supporting horizontal poles 8, and each supporting horizontal pole 8 all links firmly with (mixing) shaft 3 through flange, guarantees to connect reliable and stable.

A plurality of rake blocks 6 are arranged on the outer side edge of the rake body 5, referring to fig. 2 and 3, the rake blocks 6 are arranged along the length direction of the outer side edge of the rake body 5, the distance from the outer side edge of each rake block 6 to the outer side edge of the rake body 5 is equal, the outer side edge of each rake block 6 is crossed with the outer side edge of the rake body 5 in space, the rake blocks 6 are contacted with sediments and push the side surface of the sediments in the process of rotating along with the stirring shaft 3 to be the working side surface of the rake blocks, the working side surface is obliquely arranged relative to the axis of the stirring shaft 3 and is obliquely arranged below the front part of the running direction of the rake blocks 6, a plurality of rake teeth 7 are arranged on the outer side edge of each rake block 6, referring to fig. 4, a plurality of rake block embedding grooves 9 are arranged on the outer side edge of the rake body 5, the included angle gamma between the side surface of each rake block embedding groove 9 and the length direction of the outer side edge of the rake body 5 is 20-45 degrees, the rake blocks 6 are embedded in the rake embedding grooves 9, a connecting line A between the lower vertex of the outer side edge of one rake block 6 and the upper vertex of the outer side edge of the adjacent rake block 6 is vertical to the outer side edge of the rake body 5.

The above only illustrates some preferred embodiments of the present invention, but the present invention is not limited thereto and many modifications and changes can be made. If the included angle gamma between the side surface of the rake block embedding groove 9 and the length direction of the outer side edge of the rake body 5 is not 20-45 degrees, but can be less than 20 degrees or more than 45 degrees; the rake body 5 of each sediment rake 4 can be fixedly connected to the stirring shaft 3 through three or four upper supporting cross bars 8 instead of the upper supporting cross bar 8 and the lower supporting cross bar 8. Therefore, any modification and variation based on the basic principle of the present invention should be considered as falling within the protection scope of the present invention.

Claims

1. The utility model provides a combination harrow thickener mixer, includes (mixing) shaft (3) of rotation support on agitator frame (2) and installs sediment harrow (4) in (mixing) shaft (3) lower part, (mixing) shaft (3) are connected with stirring drive arrangement (1) transmission, its characterized in that: sediment harrow (4) are including harrow body (5), and this harrow body (5) link firmly on (mixing) shaft (3) through supporting horizontal pole (8), are equipped with a plurality of harrow pieces (6) on the outside limit of harrow body (5), and each harrow piece (6) are arranged along harrow body (5) outside limit length direction, and the outside limit of harrow piece (6) and the outside limit space intersection of harrow body (5), and the working flank of harrow piece (6) sets up for the axis slope of (mixing) shaft (3), is equipped with a plurality of rake teeth (7) on the outside limit of harrow piece (6).

2. The combination rake thickener mixer of claim 1 wherein: the harrow body (5) is a long strip-shaped plate-shaped component, and the outer side edge of the harrow body (5) and the axis of the stirring shaft (3) are in the same plane.

3. The combination rake thickener mixer of claim 1 or 2 wherein: a plurality of rake block embedding grooves (9) are formed in the outer side edge of the rake body (5), and the rake blocks (6) are embedded in the rake block embedding grooves (9).

4. The combination rake thickener mixer of claim 3 wherein: the included angle gamma between the side surface of the rake block embedding groove (9) and the length direction of the outer side edge of the rake body (5) is 20-45 degrees.

5. The combination rake thickener mixer of claim 1 or 2 wherein: a connecting line A between the lower vertex of the outer side edge of one rake block (6) and the upper vertex of the outer side edge of the adjacent rake block (6) is vertical to the outer side edge of the rake body (5).

6. The combination rake thickener mixer of claim 1 wherein: the harrow body (5) is fixedly connected on the stirring shaft (3) through two supporting cross rods (8).

7. The combination rake thickener mixer of claim 1 or 6 wherein: the supporting cross rod (8) is fixedly connected with the stirring shaft (3) through a connecting flange.

8. The combination rake thickener mixer of claim 1 or 2 wherein: the two sediment rakes (4) are uniformly distributed along the circumferential direction of the stirring shaft (3).