CN212711256U

CN212711256U - Anti-blocking rotary valve

Info

Publication number: CN212711256U
Application number: CN202021214285.6U
Authority: CN
Inventors: 徐顺环
Original assignee: Shanghai Tianshun Environmental Protection Equipment Co ltd
Current assignee: Shanghai Tianshun Environmental Protection Equipment Co ltd
Priority date: 2020-06-28
Filing date: 2020-06-28
Publication date: 2021-03-16
Anticipated expiration: 2030-06-28

Abstract

The utility model discloses a prevent stifled rotary valve, including rotary valve shell, rotor, front end housing and rear end cap. The rotor is rotatably arranged in the rotary valve shell and is driven by the driving device, the upper end of the rotary valve shell is provided with a feeding hole, and the lower end of the rotary valve shell is provided with a discharging hole; the front end cover and the rear end cover are respectively sealed at the front end and the rear end of the rotary valve shell, gaps exist between the front end face of the rotor and the rear end face of the front end cover and the rotor and between the rear end face of the rotor and the rear end cover, at least one scraper is respectively arranged on the front end face and the rear end face in the gaps, the scraping face of each scraper is inclined to the radial direction of the rotor, and the scraping face is arranged towards the rotary valve shell. The setting of the angle of the scraping surface can throw the material to the direction of the rotary valve shell while pushing the material to rotate, so that the flowability of the material in the gap between the front end surface and the rear end surface of the rotor and the corresponding front end cover and the rear end cover is enhanced, and a better ash removal effect can be achieved.

Description

Anti-blocking rotary valve

Technical Field

The utility model belongs to the field of unloading of dust or granule material especially relates to an prevent stifled rotary valve.

Background

The rotary valve, also called star-shaped unloading valve, also called as unloader, during its operation, by the rotation of the inner rotor, the material is carried on the impeller of the upper part of the rotor and then rotates downwards, when the rotor rotates to the downward position, the material falls down, and the impellers of the rotor can repeat continuously, so that the material on the upper part is sealed while the material falls down uniformly and quantitatively, and the material on the upper part is not contacted with the space below.

When the rotary valve operates, the two ends of the rotor are respectively provided with the front end plate and the rear end plate, so that a better sealing effect can be achieved, and the material can fall down without space all around. However, in the operation of the rotary valve over the years, especially when the particle size of the conveyed material is very small and the fluidity is good, the material above the rotary valve can infiltrate into the gap between the sealing end plate (i.e. the front end surface and the rear end surface) and the front end cover and the rear end cover when the rotor rotates, and after a long time, the rotor can be locked when the material reaches a certain volume, and further the motor and/or the equipment can be damaged.

In the prior art, scrapers are provided on the front end face and the rear end plate for driving the infiltrated material to flow and then to be discharged from a lower outlet (a small opening is specially provided for discharging the material in the gap). However, the scraper is a plurality of rectangular metal plates, and although the scraper can drive the material to flow and clean the infiltrated material, the scraper has poor effect on some materials with poor fluidity, especially viscous materials.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent stifled rotary valve to solve among the prior art when the material mobility is poor the poor problem of material effect in the rectangle metal sheet scraper clearance space.

The technical scheme of the utility model is that:

an anti-blocking rotary valve comprises a rotary valve shell, a rotor, a front end cover and a rear end cover, wherein the rotor is rotatably arranged in the rotary valve shell and is driven by a driving device, a feed port is formed in the upper end of the rotary valve shell, and a discharge port is formed in the lower end of the rotary valve shell; the front end cover and the rear end cover are sealed, the front end face of the rotor is provided with a gap, the rear end face of the rotor is provided with a gap, the front end face of the rotor is provided with at least one scraper, the scraping face of the scraper is inclined to the radial direction of the rotor, and the scraping face faces to the rotary valve shell.

The utility model discloses a prevent stifled rotary valve, the shape of scraper is a triangle-shaped cylinder, the bottom surface of triangle-shaped cylinder with corresponding preceding terminal surface or the rear end face is connected, a side of triangle-shaped cylinder does the face of scraping.

The utility model discloses a prevent stifled rotary valve, the triangle-shaped cylinder is the equilateral triangle cylinder, a height on the bottom surface of equilateral triangle cylinder and corresponding preceding terminal surface or a diameter coincidence on the rear end face.

The utility model discloses a prevent stifled rotary valve, preceding terminal surface with be equipped with one on the rear end face respectively the scraper, two the scraper is in projection on the preceding terminal surface is located the both sides of the axis of rotor and about the axis symmetry of rotor.

The utility model discloses a prevent stifled rotary valve, the scraper with corresponding preceding terminal surface or rear end face welded connection.

The utility model discloses owing to adopt above technical scheme, make it compare with prior art and have following advantage and positive effect:

the utility model provides an in the anti-blocking rotary valve, be equipped with the scraper on terminal surface and the rear end face before the rotor respectively, the face of scraping of scraper is compared in the radial slope setting of rotor, and face towards the rotary valve shell simultaneously, therefore, thereby rotate when the rotor and drive the scraper and rotate the back, the face of scraping not only can provide the power of a direction of rotation for the material of contact, still can provide a power towards the rotary valve shell simultaneously, make the scraper move the material to the rotary valve shell direction when driving the material, the material is thrown to the rotary valve shell when the direction of rotation removes promptly. The utility model provides a prevent that scraper has strengthened the mobility of material in the clearance in the stifled rotary valve to can reach better deashing effect, thereby solved among the prior art when the mobility of material is poor the poor problem of material effect in the rectangle metal sheet scraper clearance space.

Drawings

The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings, in which:

FIG. 1 is a schematic structural view of an anti-clogging rotary valve of the present invention;

fig. 2 is a schematic structural view of a rotor according to the present invention;

fig. 3 is a cross-sectional view of a rotor of the present invention;

fig. 4 is a schematic structural view of a front end surface of the present invention;

fig. 5 is a schematic structural view of a conventional front end surface.

Description of reference numerals:

1: rotating the valve housing; 2: a rotor; 3: a front end cover; 4: a rear end cap; 5: a front end face; 6: a rear end face; 7: a scraper; 8: a drive device; 9: a feed inlet; 10: and (4) a discharge port.

Detailed Description

The anti-blocking rotary valve provided by the present invention is further described in detail with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more fully apparent from the following description and appended claims. It is to be noted that the drawings are in a very simplified form and are not to be construed as precise ratios as are merely intended to facilitate and distinctly illustrate the embodiments of the present invention.

Also, the expression "comprising" an element is an expression of "open" which merely means that there is a corresponding component, and should not be interpreted as excluding additional components.

Referring to fig. 1 to 4, the present embodiment provides an anti-blocking rotary valve, which includes a rotary valve housing 1, a rotor 2, a front cover 3 and a rear cover 4. The rotor 2 is rotatably arranged in the rotary valve shell 1 and is driven by a driving device 8, the upper end of the rotary valve shell 1 is provided with a feeding hole 9, and the lower end of the rotary valve shell is provided with a discharging hole 10; both ends are sealed through front end housing 3 and rear end housing 4 respectively around the rotary valve shell 1, have the clearance between the preceding terminal surface 5 of rotor 2 and front end housing 3, the rear end face 6 of rotor 2 and the rear end housing 4 respectively, in the clearance, are provided with at least one scraper 7 on preceding terminal surface 5 and the rear end face 6 respectively, and the scraping face slope of scraper 7 is in the radial of rotor 2, and the scraping face sets up towards rotary valve shell 1.

The scraping surface not only can provide a force in the rotating direction for the contacted material, but also can provide a force towards the rotary valve shell 1 after the rotor 2 rotates to drive the scraper 7 to rotate, so that the scraper 7 can move the material towards the rotary valve shell 1 while driving the material, namely, the material is thrown towards the rotary valve shell 1 while moving in the rotating direction. The scraper 7 has strengthened the mobility of material in the clearance in the anti-blocking rotary valve that this embodiment provided to can reach better deashing effect, thereby solved among the prior art when the mobility of material is poor 7 poor problems of material effect in the clearance of rectangle metal sheet scraper.

The structure of the present embodiment will now be explained.

In the present embodiment, the doctor 7 is welded to the front end face 5 or the rear end face 6.

The scraper 7 can be a triangular cylinder, the bottom surface of the triangular cylinder is connected with the corresponding front end surface 5 or the rear end surface 6, and one side surface of the triangular cylinder is a scraping surface.

Referring mainly to fig. 4, further, one scraper 7 may be respectively disposed on the front end surface 5 and the rear end surface 6 of the rotor 2, and projections of the two scrapers 7 on the front end surface 5 are located on two sides of the axis of the rotor 2 and are symmetrical with respect to the axis of the rotor 2. The triangular column may specifically be an equilateral triangular column, a height on the base of which coincides with a straight line on the corresponding front or rear end face 5, 6.

The scraper 7 is arranged to clean the material extending into the gap between the sealing end plate (i.e. the front end face 5 and the rear end face 6) and the front and rear end covers 4, so that the scraper 7 rotates to drive the infiltrated material to flow and then discharge from the outlet below. The scraper 7 acts as a dust cleaning effect.

Referring to fig. 4 and 5, the scraper 7 welded to the front end face 5 is a rectangular metal strip radially disposed along the front end face 5 or the rear end face 6 of the rotor 2, and during the rotation process, only one force in the rotation direction can be provided to the material, and when the material has poor fluidity, especially, high viscosity, the rectangular metal strip scraper 7 has a poor ash removal effect. The direction of the force that scraper 7 in the anti-blocking rotary valve that this embodiment provided for the material provides one is located rotation direction and preceding terminal surface 5 (or rear end face 6) radially between, can split into the power in a rotation direction and a power towards rotary valve shell 1, can drive the material rotation simultaneously, throws the material to rotary valve shell 1 direction, has strengthened the mobility of material, has obviously improved the effect of deashing.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, the changes are still within the scope of the present invention if they fall within the scope of the claims and their equivalents.

Claims

1. An anti-blocking rotary valve is characterized by comprising a rotary valve shell, a rotor, a front end cover and a rear end cover, wherein the rotor is rotatably arranged in the rotary valve shell and is driven by a driving device; the front end cover and the rear end cover are sealed, the front end face of the rotor is provided with a gap, the rear end face of the rotor is provided with a gap, the front end face of the rotor is provided with at least one scraper, the scraping face of the scraper is inclined to the radial direction of the rotor, and the scraping face faces to the rotary valve shell.

2. The anti-clogging rotary valve as set forth in claim 1 wherein said scraper is in the shape of a triangular column, the bottom surface of said triangular column being connected to said front end surface or said rear end surface, respectively, and one side surface of said triangular column being said scraping surface.

3. The anti-clogging rotary valve according to claim 2, wherein the triangular columns are equilateral triangular columns, and a height of the equilateral triangular columns coincides with a diameter of the corresponding front end surface or the corresponding rear end surface.

4. The anti-clogging rotary valve of claim 1 wherein one of said scrapers is disposed on each of said front face and said rear face, and the projections of said two scrapers on said front face are located on both sides of and symmetrical about the axis of said rotor.

5. The anti-clogging rotary valve of claim 1 wherein said scraper is welded to said corresponding front face or said back face.