CN214515291U

CN214515291U - Spiral propelling device with overflow port for centrifugal machine

Info

Publication number: CN214515291U
Application number: CN202022633069.1U
Authority: CN
Inventors: 金一华
Original assignee: Zhejiang Tianci Environmental Protection Technology Co ltd
Current assignee: Zhejiang Tianci Environmental Protection Technology Co ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-10-29
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a spiral propulsion device with an overflow port for a centrifuge, which comprises a shell, wherein a rotary drum is rotationally connected in the shell, and a spiral propeller with a speed difference with the rotation of the rotary drum is rotationally connected with the rotary drum; the spiral propeller comprises a cylinder body, and spiral propeller blades are fixed on the cylinder body in a spiral manner; the inner end of the water outlet side of the spiral propelling blade is provided with a group of overflow ports which are uniformly distributed along the center of the cylinder; the barrel is provided with a cavity, a material inlet arranged on the barrel is arranged at the cavity, a material inlet pipe is arranged in the barrel, and a feeding outlet positioned at the cavity is arranged at the inner end of the material inlet pipe; the left end of the rotary drum is provided with a water outlet, and the right end of the rotary drum is provided with a slag outlet. The utility model discloses structural design is ingenious, reasonable, can get rid of the clarified liquid fast for solid-liquid separation to the moisture content of also indirect reduction solid phase thing is worth popularizing and applying.

Description

Spiral propelling device with overflow port for centrifugal machine

Technical Field

The utility model relates to an equipment, especially a centrifuge is with taking overflow mouth spiral advancing device.

Background

The spiral propelling device is an important component of a horizontal spiral sedimentation centrifuge and has the following principle: the rotary drum and the spiral propeller rotate at a high speed in the same direction at a certain differential speed, materials are continuously introduced into the material conveying spiral inner cylinder through the feeding pipe and enter the rotary drum after being accelerated, heavy solid-phase substances are deposited on the wall of the rotary drum to form a slag deposition layer under the action of centrifugal force, the spiral blades continuously push the deposited solid-phase substances (namely sludge) to the conical end of the rotary drum and discharge the solid-phase substances out of the rotary drum through a slag discharge port, light liquid-phase substances form an inner-layer liquid ring and continuously overflow the rotary drum from an overflow port at the large end of the rotary drum and discharge the liquid out of the rotary drum through a liquid discharge port, the spiral propeller blades on the traditional spiral propeller are directly welded and fixed on the outer contour surface of the cylinder body of the spiral propeller, the pressure borne by the spiral propeller blades is very high, the solid-phase substances are discharged, the hydraulic pressure facing liquid is also needed, therefore, after the centrifugal machine is used for a long time, the welding position between the spiral propeller blades and the cylinder body of the spiral propeller is clarified, cracks can be generated, and the situation that the spiral propelling blade is broken to cause the rejection of the centrifuge is seriously caused.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve above-mentioned prior art's shortcoming, provide one kind and can reduce the centrifugal separator of screw propulsion blade pressure and take overflow mouth screw propulsion device, satisfied the enterprise to screw propulsion ware long service life, demand with low costs.

The utility model provides a technical scheme that its technical problem adopted: the spiral propelling device with the overflow port for the centrifuge comprises a shell, wherein a rotary drum is rotationally connected in the shell, and a spiral propeller with a speed difference with the rotation of the rotary drum is rotationally connected in the rotary drum; the spiral propeller comprises a cylinder body, and spiral propeller blades are fixed on the cylinder body in a spiral manner; the inner end of the water outlet side of the spiral propelling blade is provided with a group of overflow ports which are uniformly distributed along the center of the cylinder; the barrel is provided with a cavity, a material inlet arranged on the barrel is arranged at the cavity, a material inlet pipe is arranged in the barrel, and a feeding outlet positioned at the cavity is arranged at the inner end of the material inlet pipe; the left end of the rotary drum is provided with a water outlet, and the right end of the rotary drum is provided with a slag outlet. The rotary drum and the spiral propeller have the functions that the rotary drum and the spiral propeller can keep constant rotating speed difference by using a differential mechanism, so that solid-liquid separation can be carried out on materials and the materials can be discharged; the water outlet has the function of discharging clear liquid; the slag hole has the function of carrying out slag tapping treatment on solid-phase materials of the materials; the overflow port has the function that the clarified liquid can be quickly discharged through the overflow port and discharged through the water outlet, so that the pressure of the spiral propelling blade is greatly reduced, and the service life of the spiral propelling blade is prolonged.

Further perfection, the size of each overflow port gradually increases along the direction of the water outlet side. The size of each overflow port gradually increases in the direction of the water outlet side, and the discharge of the clarified liquid (liquid phase) can be gradually accelerated.

Further perfection, the side of overflow mouth is equipped with a set of strengthening rib, and the bottom weld fixation of each strengthening rib is in barrel department, and the side weld fixation of strengthening rib is in spiral propulsion leaf department, and each strengthening rib staggers with each overflow mouth respectively. The reinforcing rib has the function of enhancing the strength of the spiral propelling blade after the overflow port is opened.

The utility model discloses profitable effect is: the utility model has the advantages of ingenious and reasonable structural design, greatly reduces the acting force of the transverse load born by the spiral propelling blade by utilizing the overflow port, and has large bearing capacity of the spiral propelling blade because of a plurality of arrangement of the reinforcing ribs, thereby greatly prolonging the service life of the spiral propelling blade; and utilize the overflow mouth also can make solid phase thing and liquid phase thing (clarified liquid) separately discharge, and liquid phase thing can discharge through the overflow mouth fast, and solid phase thing is discharged through the driving force of spiral propulsion blade, is worth popularizing and applying.

Drawings

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

FIG. 2 is an enlarged view of a portion of the area A of FIG. 1;

fig. 3 is a flow chart of the change of the overflow port in the middle screw propulsion blade of the present invention.

Description of reference numerals: the device comprises a machine shell 1, a rotary drum 2, a spiral propeller 3, a cylinder 3-1, spiral propelling blades 3-1a, overflow ports 3a-1a, a cavity 3-1c, a material inlet 3-1b, a material inlet pipe 4, a material outlet 4-1, a water outlet 2a, a slag outlet 2b and reinforcing ribs 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The present invention will be further explained with reference to the accompanying drawings:

with reference to the accompanying drawings: the spiral propelling device with the overflow port for the centrifuge comprises a shell 1, wherein a rotary drum 2 is rotationally connected in the shell 1, and a spiral propeller 3 with a speed difference with the rotation of the rotary drum 2 is rotationally connected to the rotary drum 2; the spiral propeller 3 comprises a cylinder 3-1, and spiral propeller blades 3-1a are fixed on the cylinder 3-1 in a spiral manner; the inner end of the water outlet side of the spiral propelling blade 3-1a is provided with a group of overflow ports 3a-1a which are uniformly distributed along the center of the cylinder 3-1; a cavity 3-1c is arranged on the cylinder 3-1, a material inlet 3-1b arranged on the cylinder 3-1 is arranged at the cavity 3-1c, a material inlet pipe 4 is arranged in the cylinder 3-1, and a material inlet 4-1 positioned at the cavity 3-1c is arranged at the inner end of the material inlet pipe 4; the left end of the rotary drum 2 is provided with a water outlet 2a, and the right end of the rotary drum 2 is provided with a slag outlet 2 b.

The size of each overflow port 3a-1a gradually increases along the direction of the side of the water outlet 2 a.

The side end of the overflow port 3a-1a is provided with a group of reinforcing ribs 5, the bottom end of each reinforcing rib 5 is welded and fixed at the barrel 3-1, the side end of each reinforcing rib 5 is welded and fixed at the spiral propelling blade 3-1a, and each reinforcing rib 5 is respectively distributed with each overflow port 3a-1a in a staggered way.

The utility model discloses a theory of operation: the overflow ports 3a-1a are utilized to greatly reduce the acting force of the transverse load born by the spiral propelling blades 3-1a, and the arrangement quantity of the reinforcing ribs 5 is large, so that the bearing capacity of the spiral propelling blades 3-1a is large, the service life of the spiral propelling blades 3-1a can be greatly prolonged, solid-phase substances and liquid-phase substances (clear liquid) can be rapidly separated and discharged by utilizing the overflow ports 3a-1a, the liquid-phase liquid can be rapidly discharged through the gradually increased overflow ports, and the solid-phase substances are pushed to be rapidly discharged through the spiral propelling blades 3-1a, so that the solid-liquid separation of materials is accelerated, the moisture content of the solid-phase substances is indirectly reduced, and the device is worthy of popularization and application.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims

1. The utility model provides a take overflow mouth screw propulsion device for centrifuge, includes casing (1), characterized by: a rotary drum (2) is rotatably connected in the shell (1), and the rotary drum (2) is rotatably connected with a spiral propeller (3) with a speed difference with the rotary drum (2); the spiral propeller (3) comprises a cylinder (3-1), and spiral propeller blades (3-1a) are fixed on the cylinder (3-1) in a spiral manner; the inner end of the water outlet side of the spiral propelling blade (3-1a) is provided with a group of overflow ports (3a-1a) which are uniformly distributed along the center of the cylinder body (3-1);

a cavity (3-1c) is arranged on the barrel (3-1), a material inlet (3-1b) formed in the barrel (3-1) is formed in the cavity (3-1c), a material inlet pipe (4) is arranged in the barrel (3-1), and a material inlet outlet (4-1) located in the cavity (3-1c) is formed in the inner end of the material inlet pipe (4);

the left end of the rotary drum (2) is provided with a water outlet (2a), and the right end of the rotary drum (2) is provided with a slag outlet (2 b).

2. A screw propulsion device with an overflow port for a centrifuge according to claim 1, wherein: the size of each overflow port (3a-1a) is gradually increased along the side direction of the water outlet (2 a).

3. A screw propulsion device with an overflow port for a centrifuge according to claim 1, wherein: a group of reinforcing ribs (5) are arranged at the side ends of the overflow ports (3a-1a), the bottom ends of the reinforcing ribs (5) are welded and fixed at the cylinder body (3-1), the side ends of the reinforcing ribs (5) are welded and fixed at the spiral propelling blade (3-1a), and the reinforcing ribs (5) are respectively distributed in a staggered manner with the overflow ports (3a-1 a).