CN211340205U - Rotor, coarse screen and screening device for preventing impurities from being wound - Google Patents

Abstract

The utility model relates to a prevent winding rotor of impurity, coarse screen and sieving mechanism, the rotor includes: the rotor body, and propelling movement portion, the spiral has propelling movement portion on the rotor body bottom inner wall. The utility model discloses a prevent winding rotor of impurity, the propelling movement portion is arranged to the spiral on rotor bottom inner wall, and when the rotatory in-process of rotor, with impurity propelling movement out rotor, prevent that impurity from twining the rotor bottom, reduced the load of rotor, and then reduced the energy consumption, prolonged the life of rotor. Be applied to coarse screen or sieving mechanism, rotatory spiral propelling movement portion passes thick long impurity and carries out screw conveyor, discharges through the tail thick liquid mouth, prevents that thick impurity or tow from flocculating the winding in the bottom of rotor, reduces the wearing and tearing to the rotor, has reduced the energy consumption, has improved output, has guaranteed the work that the screening can last.

Description

Rotor, coarse screen and screening device for preventing impurities from being wound

Technical Field

The utility model relates to a chemical-mechanical pulp of papermaking pulping trade, waste paper pulp screening system's mechanical equipment technical field, more specifically says so and relates to a prevent winding rotor of impurity, coarse screen and sieving mechanism.

Background

The coarse screen is generally designed to remove large heavy impurities, light impurities and fiber bundles contained in chemical pulp and waste paper pulp before a fine screen or a pre-wire screen of a papermaking and pulping screening system. Coarse screen body section referring to fig. 1 and 2, the coarse screen comprises: an upper casing 100 and a lower casing 200. Each of the upper casing 100 and the lower casing 200 has a screen cylinder 300 therein. The top of the upper casing 100 is provided with an exhaust port 101, the upper part is tangentially provided with an upper tail stock port 102, and the lower casing 200 is provided with a stock inlet 203, a good stock port 201 and a lower tail stock port 202.

When the coarse screen is operated, slurry is pumped into the machine body from the slurry inlet 203 of the device along a tangent line. In the apparatus, the pulp is divided into two flows, one towards the screen cylinder 300 in the upper part of the apparatus and one towards the screen cylinder 300 in the lower part of the apparatus. In the rotation process, the rotor 400 moves along the surface of the screen cylinder 300 to generate pressure on the pulp, so that the pressure difference between the inside and the outside of the screen cylinder 300 is increased, and pulp fibers enter a good pulp chamber through the screen cylinder and are discharged through a good pulp port 201; the impurities or fiber bundles that cannot pass through the screen cylinder 300 flow into the residue chambers of the upper and lower housings 100 and 200, and are discharged through the tail slurry outlet. The rotor body 400 is a key component of the coarse screen, and the structural form of the rotor body 400 directly influences the use effect of the coarse screen. Rotor among the prior art is when equipment operation, can not flow the long-pending sediment room of lower casing 200 through the impurity of screen cylinder 300, and tiny impurity discharges in succession through tail-gate 202 down, and thick impurity arouses the flocculation easily, twines in the bottom of rotor body 400, and rotor body 400 has seriously worn and torn, has hindered rotor body 400's normal rotation, has increased the load of coarse screening, has both influenced output, increases the energy consumption again, has shortened the life of rotor and complete machine greatly.

Therefore, how to provide a rotor capable of preventing the impurities from being wound is a problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the above-mentioned technical problem among the prior art to a certain extent at least.

Therefore, an object of the utility model is to provide a prevent winding rotor of impurity is favorable to discharging impurity in the screening, prevents to twine the rotor, has reduced the load of rotor, reduces the energy consumption, has prolonged the life of rotor.

The utility model provides a prevent winding rotor of impurity, include:

a rotor body, a rotor cover and a rotor cover,

and the pushing part is spirally arranged on the inner wall of the bottom of the rotor body.

According to the technical scheme, compare with prior art, the utility model discloses a prevent winding rotor of impurity arranges propelling movement portion at the spiral on rotor bottom inner wall, and when the rotatory in-process of rotor, with impurity propelling movement play rotor, prevent that impurity from winding rotor bottom, reduced the load of rotor, and then reduced the energy consumption, prolonged the life of rotor.

Preferably, the pushing part is welded on the inner wall of the bottom of the rotor body.

Preferably, the pushing part is a helical blade.

Preferably, the helical blade comprises a cylindrical helical blade and a conical helical blade which are integrally connected; the cylindrical helical blade is fixed on the rotor body and is in a cylindrical position, and the conical helical blade is fixed on the rotor body and is in a conical position. The helical blade is matched with the rotor body in shape, so that impurities can be conveniently discharged.

Preferably, the spiral blades are two in number, and the discharge efficiency is the best when the pitch is 250 mm.

Another object of the utility model is to provide a coarse screen, include: coarse screen body and above-mentioned one kind prevent the winding rotor of impurity, the rotor body is fixed in upper casing and the lower casing.

According to the technical scheme, compare with prior art, the utility model provides a coarse screen with prevent impurity winding rotor, the spiral is arranged propelling part on rotor bottom inner wall, and rotatory spiral propelling part passes thick long impurity and carries out screw conveyor, discharges through the tail thick liquid mouth, prevents thick impurity or tow flocculation winding in the bottom of rotor, reduces the wearing and tearing to the rotor, has reduced the energy consumption, has improved output, guarantees the work that the coarse screen can last.

The utility model discloses another purpose still provides a sieving mechanism, include: screening device body and a prevent the winding rotor of impurity, this internal in screening device is fixed in to the rotor body. According to the technical scheme, compare with prior art, the utility model provides a sieving mechanism with prevent impurity winding rotor, the spiral is arranged propelling part on rotor bottom inner wall, and rotatory spiral propelling part passes thick long impurity and carries out screw conveyor, discharges through the tail thick liquid mouth, prevents thick impurity or tow flocculation winding in the bottom of rotor, reduces the wearing and tearing to the rotor, has reduced the energy consumption, has improved output, has guaranteed the work that the screening can last.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram of a prior art coarse screen;

FIG. 2 is a bottom view of FIG. 1;

fig. 3 is a perspective view of a rotor for preventing foreign materials from being entangled according to the present invention;

fig. 4 is a schematic structural diagram of a rotor for preventing impurities from being wound according to the present invention;

FIG. 5 is a bottom view (C view) of FIG. 4;

in the figure: 100-upper casing, 101-exhaust hole, 102-upper tail slurry port, 200-lower casing, 201-good slurry port, 202-lower tail slurry port, 203-slurry inlet, 300-screen cylinder, 400-rotor body and 500-pushing part.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", 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 simplicity of description, and 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 limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The embodiment of the utility model discloses prevent winding rotor of impurity is favorable to discharging impurity in the screening, prevents winding rotor, has reduced the load of rotor, reduces the energy consumption, has prolonged the life of rotor.

Referring to fig. 3 to 5, the present invention provides a rotor for preventing foreign matter from being entangled, comprising:

the rotor body 400 is provided with a plurality of rotor slots,

and a pushing part 500, wherein the pushing part 500 is spirally arranged on the inner wall of the bottom of the rotor body 400.

The utility model discloses a prevent winding rotor of impurity, the propelling movement portion is arranged to the spiral on rotor bottom inner wall, and when the rotatory in-process of rotor, with impurity propelling movement out rotor, prevent that impurity from twining the rotor bottom, reduced the load of rotor, and then reduced the energy consumption, prolonged the life of rotor.

Specifically, the pushing part 500 is welded to the inner wall of the bottom of the rotor body 400.

Advantageously, the pushing part 500 is a helical blade, having a stronger pushing performance for impurities.

Advantageously, the helical blade comprises a cylindrical helical blade and a conical helical blade integrally connected; the cylindrical helical blade is fixed to the rotor body 400 in a cylindrical position, and the conical helical blade is fixed to the rotor body 400 in a conical position. The helical blade is matched with the rotor body in shape, so that impurities can be conveniently discharged.

In one embodiment of the present invention, the number of the helical blades is two, and the discharge efficiency is the best when the pitch is 250 mm.

The utility model also provides a coarse screen, include: a coarse screen body and the rotor for preventing the foreign materials from being entangled, the rotor body 400 is fixed in the upper casing 100 and the lower casing 200. The utility model discloses a coarse screen with prevent that impurity from twining rotor, the spiral is arranged propelling part on rotor bottom inner wall, and rotatory spiral propelling part passes thick long impurity and carries out screw conveyor, discharges through the tail thick liquid mouth, prevents thick impurity or tow flocculation winding in the bottom of rotor, reduces the wearing and tearing to the rotor, has reduced the energy consumption, has improved output, guarantees the work that the coarse screen can last.

The utility model also provides a sieving mechanism, include: a screening device body and the rotor for preventing the impurities from being wound, wherein the rotor body 400 is fixed in the screening device body; the spiral arranges propelling movement portion on rotor bottom inner wall, and rotatory spiral propelling movement portion passes thick long impurity and carries out screw conveyor, discharges through the tail thick liquid mouth, prevents thick impurity or tow flocculation winding in the bottom of rotor, reduces the wearing and tearing to the rotor, has reduced the energy consumption, has improved output, has guaranteed the work that the screening can last.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (7)

1. A rotor for preventing foreign matter from being entangled, comprising:

a rotor body (400),

and the pushing part (500) is spirally arranged on the inner wall of the bottom of the rotor body (400).

2. The rotor for preventing foreign matter from being entangled of claim 1, wherein said pushing part (500) is welded to the inner wall of the bottom of said rotor body (400).

3. A rotor for preventing foreign matter from being entangled according to claim 1, wherein the pushing part (500) is a helical blade.

4. A rotor for preventing foreign matter from being entangled according to claim 3, wherein said helical blade comprises a cylindrical helical blade and a conical helical blade which are integrally connected; the cylindrical helical blade is fixed to the position where the rotor body (400) is cylindrical, and the conical helical blade is fixed to the position where the rotor body (400) is conical.

5. A rotor for preventing foreign substances from being entangled according to claim 4, wherein the number of the helical blades is two and the pitch is 250 mm.

6. A coarse screen, comprising: coarse screen body and rotor for preventing impurities from winding according to any one of claims 1 to 5, the rotor body (400) being fixed in the upper casing (100) and the lower casing (200).

7. A screening apparatus, comprising: screening apparatus body and a rotor for preventing entanglement of foreign substances according to any one of claims 1 to 5, said rotor body (400) being fixed in the screening apparatus body.

Images