CN213117515U - Rotary valve for preventing material accumulation in separation chamber - Google Patents

Abstract

The utility model discloses a rotary valve for preventing the material accumulation in a separate cavity, which comprises a valve body and an end cover; the valve body is provided with a feed inlet, a discharge outlet and a valve cavity, and an impeller is arranged in the valve cavity; the impeller comprises a main shaft, at least two blades and two cover plates; the blades are arranged on the main shaft along the axial direction of the main shaft, the two cover plates are arranged at the two ends of the blades, and a separation cavity is formed between each two adjacent blades and the corresponding cover plate; two ends of the main shaft are respectively rotatably connected with the end covers on the left side and the right side of the valve body; the end part of each separate cavity is provided with a blowing hole which is arranged on the cover plate; an air inlet hole is formed in the end cover, an air outlet end of the air inlet hole is arranged close to the discharge hole, the air outlet end of the air inlet hole is suitable for being communicated with the blowing hole, and the air inlet hole is communicated with an external air source. The utility model discloses a prevent to separate rotary valve of chamber long-pending material, it can solve the long-pending material of impeller, putty and the not high problem of material transport precision.

Description

Rotary valve for preventing material accumulation in separation chamber

Technical Field

The utility model relates to a rotary valve machinery technical field especially relates to a prevent to separate rotary valve of chamber long-pending material.

Background

The rotary valve is a special device used for unloading, metering, dedusting, quantitative conveying, mixing and packaging in a powder conveying system. Conventional rotary valves generally include a valve body, an end cap, and an impeller; the valve body is provided with a feed inlet and a discharge outlet, and the impeller is rotatably arranged in the valve body; the impeller structurally comprises a main shaft, blades arranged along the axial direction of the main shaft and a cover plate arranged along the radial direction of the main shaft; the two adjacent blades and the cover plate can be enclosed to form a separation cavity for containing materials, the materials can be filled into the separation cavity above the impeller after entering from the feed inlet of the valve body, the separation cavity above the impeller can rotate to the lower part along with the rotation of the impeller, and at the moment, the materials can be discharged from the separation cavity below the impeller. The disadvantages of such a rotary valve are: the material is easy to adhere in the separate chamber, thereby causing the phenomena of material accumulation and material blockage of the impeller and bringing negative influence to the conveying precision of the material.

SUMMERY OF THE UTILITY MODEL

In order to overcome the not enough of prior art, the utility model aims to provide a prevent to separate rotary valve of chamber long-pending material, it can solve the long-pending material of impeller, putty and the not high problem of material transport precision.

The purpose of the utility model is realized by adopting the following technical scheme:

a rotary valve for preventing material accumulation in a compartment, comprising: the valve comprises a valve body and end covers positioned on the left side and the right side of the valve body; the valve body is provided with a feed inlet, a discharge outlet and a valve cavity, and an impeller is arranged in the valve cavity; the impeller comprises a main shaft, at least two blades and two cover plates; the blades are arranged on the main shaft along the axial direction of the main shaft, two cover plates are arranged at two ends of the blades, and a separation cavity is formed between two adjacent blades and the cover plates; two ends of the main shaft are respectively rotatably connected to the end covers on the left side and the right side of the valve body; the end part of each separate cavity is provided with a blowing hole, and the blowing hole is formed in the cover plate; the end cover is provided with an air inlet, the air outlet end of the air inlet is arranged close to the discharge hole, the air outlet end of the air inlet is suitable for being communicated with the blowing hole, and the air inlet is communicated with an external air source.

Furthermore, the air inlet end of the air inlet hole is suitable for being connected with an air pipe connector, and an air pipe communicated with an external air source is arranged on the air pipe connector.

Furthermore, the air outlet end of the air inlet hole is in a local annular groove shape.

Further, the number of the cells is 4 or 8.

Further, the purge hole is arranged obliquely toward the main shaft.

Further, a driving mechanism is arranged on the outer side of the end cover and is suitable for driving the main shaft to rotate around the axis of the main shaft.

Further, the driving mechanism is a speed reduction motor.

Furthermore, an electromagnetic valve is arranged on the air pipe and used for controlling the on-off of the air pipe.

Compared with the prior art, the beneficial effects of the utility model reside in that: the end of giving vent to anger of inlet port is close to the discharge gate setting, so move to being close to the discharge gate department when (should separate the chamber when unloading promptly) when a certain partition chamber is followed to being close to the feed inlet department, the end of giving vent to anger of inlet port just can separate the chamber with this blowing hole intercommunication, at this moment outside air supply will be swept in this partition chamber through inlet port and blowing hole pair, avoid the material adhesion at the partition intracavity, thereby avoid the long-pending material of impeller, the transport precision of material is guaranteed to the phenomenon of putty, can also guarantee simultaneously to separate the chamber and not influenced by outside air supply when connecing the material, make its ability normal. In addition, only when the separation cavity is used for discharging, the air outlet end of the air inlet hole is communicated with the blowing hole of the separation cavity, so that an air source can be saved, and pulse airflow is formed for the separation cavity, so that the blowing effect is better.

Drawings

FIG. 1 is a first perspective cross-sectional view of a rotary valve of the present invention preventing the accumulation of material in a compartment;

FIG. 2 is a second cross-sectional view of the rotary valve of the present invention preventing the accumulation of material in the compartment;

FIG. 3 is a third cross-sectional view of a rotary valve of the present invention preventing the accumulation of material in the compartment;

FIG. 4 is a cross-sectional view of an end cap of a rotary valve of the present invention preventing the accumulation of material in the compartment;

fig. 5 is a cross-sectional view of the impeller of the rotary valve of the present invention preventing the accumulation of material in the compartment.

In the figure: 1. a valve body; 11. a feed inlet; 12. a discharge port; 13. a valve cavity; 2. an end cap; 21. an air inlet; 3. an impeller; 31. a main shaft; 32. a blade; 33. a cover plate; 34. a compartment; 331. a purge hole; 4. a gas pipe joint; 5. a speed reducing motor.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1-5, a rotary valve for preventing material accumulation in a separate chamber according to an embodiment of the present invention is shown, which at least includes a valve body 1 and end caps 2 located at the left and right sides of the valve body 1; the valve body 1 has a feed inlet 11, a discharge outlet 12 and a valve chamber 13. Referring to fig. 2 and 5, the valve chamber 13 is internally provided with an impeller 3; the impeller 3 comprises a main shaft 31, at least two blades 32 and two cover plates 33; the blades 32 are arranged on the main shaft 31 in the axial direction of the main shaft 31, two cover plates 33 are arranged at both ends of the blades 32, and a gap 34 is formed between two adjacent blades 32 and the cover plates 33. Two ends of the main shaft 31 are respectively rotatably connected to the end covers 2 at the left side and the right side of the valve body 1; the end of each compartment 34 is provided with a purge hole 331, and the purge hole 331 is formed on the cover plate 33; an air inlet hole 21 is formed in the end cover 2, an air outlet end of the air inlet hole 21 is arranged close to the discharge hole 12, the air outlet end of the air inlet hole 21 is suitable for being communicated with the blowing hole 331, and the air inlet hole 21 is communicated with an external air source.

Because the utility model provides an inlet port 21 give vent to anger the end and be close to discharge gate 12 setting, so as to separate a chamber 34 when certain rotation along with impeller 3 moves to being close to discharge gate 12 department from being close to feed inlet 11 (should separate the chamber when unloading promptly), inlet port 21 give vent to anger the end just can with should separate the purge hole 331 intercommunication of chamber 34, at this moment, outside air supply will be swept in this chamber 34 through inlet port 21 and purge hole 331, avoid the material adhesion to separate the chamber 34 in, thereby avoid impeller 3 long-pending material, the phenomenon of putty, the transport accuracy of material has been guaranteed, such mode of setting up simultaneously can also guarantee to separate chamber 34 and do not influenced by outside air supply when connecing the material, make its ability normal work. In addition, only when the compartment 34 is unloaded, the air outlet end of the air inlet hole 21 is communicated with the purge hole 331 of the compartment 34, so that air sources can be saved, and pulse air flow is formed for the compartment 34, so that the purge effect is better.

In a preferred embodiment, the air inlet port 21 has an air inlet end adapted to be connected to the air pipe joint 4, and the air pipe joint 4 is provided with an air pipe (not shown) communicated with an external air source. That is, in the utility model, the external air source is actually communicated with the air inlet 21 through the air pipe and the air pipe joint 4.

Preferably, the air outlet end of the air inlet hole 21 has a partial annular groove shape. The air outlet end in the shape of a partial annular groove can prolong the communication time between the air outlet end and the blowing holes 331, so that the blowing effect is enhanced.

Preferably, the number of cells 34 is 8. I.e. the number of vanes 32 in the present invention is 8 to form eight compartments 34. It should be noted that, the number of the separate cavities is specifically what number, and the present invention is not limited thereto, and the number of the separate cavities may be set to 4, 8 or other numbers according to actual use requirements. Specifically, the purge hole 331 is disposed obliquely toward the spindle 31. Through the arrangement mode, the blowing holes 331 have better blowing effect.

Preferably, the outer side of the end cap 2 is provided with a driving mechanism adapted to drive the main shaft 31 in rotation about its own axis. Specifically, the drive mechanism is a reduction motor 5. That is, in the present invention, the main shaft 31 is driven by the reduction motor 5.

Preferably, the air pipe is provided with an electromagnetic valve, and the electromagnetic valve is used for controlling the on-off of the air pipe. Namely, the utility model discloses can also control through the solenoid valve and blow whether blow in the hole 331 to reach the effect that the pulse air current sweeps.

Above-mentioned gear motor 5 and solenoid valve all can carry out upper control through PLC, and PLC is prior art, the utility model discloses no longer describe herein.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.

Claims (8)

1. A rotary valve for preventing material accumulation in a compartment, comprising: the valve comprises a valve body and end covers positioned on the left side and the right side of the valve body; the valve body is provided with a feed inlet, a discharge outlet and a valve cavity, and an impeller is arranged in the valve cavity; the impeller comprises a main shaft, at least two blades and two cover plates; the blades are arranged on the main shaft along the axial direction of the main shaft, two cover plates are arranged at two ends of the blades, and a separation cavity is formed between two adjacent blades and the cover plates; two ends of the main shaft are respectively rotatably connected to the end covers on the left side and the right side of the valve body; the end part of each separate cavity is provided with a blowing hole, and the blowing hole is formed in the cover plate; the end cover is provided with an air inlet, the air outlet end of the air inlet is arranged close to the discharge hole, the air outlet end of the air inlet is suitable for being communicated with the blowing hole, and the air inlet is communicated with an external air source.

2. The rotary valve for preventing cell material accumulation as claimed in claim 1 wherein the inlet end of the inlet port is adapted to connect to an air pipe connection, said air pipe connection having an air pipe connected to an external air supply.

3. The rotary valve for preventing cell fouling of claim 2 wherein the outlet end of the inlet port is in the form of a partial annular groove.

4. Rotary valve for preventing cell fouling according to claim 1 wherein the number of cells is 4 or 8.

5. Rotating valve for preventing cell fouling according to claim 4, characterised in that the purge holes are arranged obliquely to the main axis.

6. Rotary valve for the prevention of cell material accumulation according to claim 1 characterised in that the outer side of the end cap is provided with a driving mechanism adapted to drive the spindle in rotation around its axis.

7. The rotary valve for preventing cell fouling of claim 6 wherein the drive mechanism is a speed reduction motor.

8. The rotary valve for preventing the material accumulation in the cell according to claim 2, wherein the air tube is provided with a solenoid valve for controlling the on/off of the air tube.

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