KR20120054286A

KR20120054286A - Rotary valve

Info

Publication number: KR20120054286A
Application number: KR1020100115587A
Authority: KR
Inventors: 안재성
Original assignee: 네오텍스(주)
Priority date: 2010-11-19
Filing date: 2010-11-19
Publication date: 2012-05-30
Also published as: KR101264279B1

Abstract

PURPOSE: A rotary valve is provided to effectively seal with an auxiliary blade and to readjust clearance by adjusting coupling positions of the auxiliary blade if a blade is worn. CONSTITUTION: A rotary valve(200) comprises a case(210), a blade(230), and an auxiliary blade(250). An inlet port is formed in the upper part of the case and a discharge port is formed in the lower part. A chamber having a circular section is formed between the inlet port and the discharge port. The blade rotates while radially attaching in the inner circumference of the chamber. The auxiliary blade is coupled to the end of the blade to increase sealing performance.

Description

Rotary valve

The present invention relates to a rotary valve, and more particularly, to a rotary valve for coupling a secondary blade to the blade to improve the sealing performance.

In general, the rotary valve (rotary valve) is a device for discharging the cake to be supplied to the inside through the rotation of the blade quantitatively and at the same time to transport the discharged product to a long distance, by applying pressure to the outlet side to transfer the discharged cake.

The rotary valve has a problem in that the blade rotating in the chamber is worn by the rotation to reduce the sealing performance, thereby increasing the time and cost of maintenance.

In particular, when the pressure vessel is connected to the inlet side of the rotary valve, and the dryer is connected to the outlet side, the sealing function of the rotary valve is deteriorated, and if the pressure at the inlet side is transferred to the outlet side, a problem occurs that causes the dryer to break. do.

When the cake discharged to the outlet of the rotary valve is transferred to the blower, when the sealing function of the rotary valve is lowered, the pressure of the air supplied from the blower is transferred to the inlet side of the rotary valve, and the cake from the inlet. There is a problem that prevents the supply from going smoothly.

On the other hand, the number of the blades may be increased to improve the sealing effect of the rotary valve. However, increasing the number of the blades may cause a problem in that the amount of cake feed decreases, thereby increasing the number of blades.

The present invention for solving the above problems is to provide a rotary valve having an auxiliary blade which can be coupled to the blade to adjust the coupling position to improve the sealing performance, and to reduce the maintenance cost and time There is this.

In the present invention, an inlet is formed at an upper portion, an outlet is formed at a lower portion, a case is formed between the inlet and the outlet, and a chamber is radially in close contact with the inner circumferential surface of the chamber and is coupled to the blade and the end of the blade is sealed. Provided is a rotary valve comprising an auxiliary blade that increases performance.

The auxiliary blade may be disposed forward in the rotational direction of the blade, and may include a coupling part coupled to an end of the blade, and an inclined part extending to be inclined from the coupling part corresponding to the rotation radius of the blade.

The coupling portion may be formed with a long hole to adjust the coupling position with the blade.

The rotary valve may further include a blower means adjacent to the discharge port in which an discharge groove in which an object discharged from the chamber falls is formed, and blows and blows air to the object falling in the discharge groove.

In addition, the present invention is formed with a pressure vessel inside the pressure is formed and the cake is stored, the discharge port is formed in the inlet through which the cake is discharged from the pressure vessel is supplied, the dryer for transporting and drying the cake discharged in the lower portion is disposed adjacent And a case having a circular pressure chamber having a circular cross section between the inlet and the outlet, a radially intimate contact with the inner circumferential surface of the pressure chamber, and an auxiliary blade coupled to an end of the blade to increase sealing performance. It provides a rotary valve comprising.

According to the rotary valve according to the present invention, more effective sealing is enabled by the auxiliary blade.

In addition, the mating position of the secondary blades can be adjusted, reducing the time and cost required for maintenance because the blades can be readjusted for wear.

1 is a cross-sectional view of a rotary valve according to an embodiment of the present invention,
FIG. 2 is a partially enlarged view showing the blade shown in FIG. 1; FIG.
3 is a side sectional view showing the rotary valve shown in FIG. 1;
4 is a schematic explanatory diagram of a rotary valve according to another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should properly explain the concept of terms in order to best explain their own invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept corresponding to the technical idea of the present invention.

1 is a cross-sectional view showing a rotary valve 200 according to an embodiment of the present invention, Figure 2 is a partially enlarged view of the blade 230 shown in Figure 1, Figure 3 is a rotary valve 200 shown in Figure 1 Is a side cross-sectional view showing).

1 to 3, in the rotary valve 200, a storage container 20 is disposed at an upper portion thereof, an inlet 211 is formed below the storage container 20, and an outlet 213 is formed at a lower portion thereof. And a case 210 in which a chamber 215 having a circular cross section is formed between the inlet 211 and the outlet 213, and radially disposed and rotated to have a predetermined clearance from an inner circumferential surface of the chamber 215. It includes a blade 230 and the auxiliary blade 250 coupled to the end of the blade 230 to increase the sealing performance.

In the storage container 20, the cake to be supplied to the inlet 211 is always stored more than the set capacity.

The blade 230 rotates the cake, which is supplied to the chamber 215 through the inlet 211, in the chamber 215, and discharges the cake quantitatively to the outlet 213.

The auxiliary blade 250 is disposed forward in the rotational direction of the blade 230, the coupling portion 251 is coupled to the end of the blade 230, and in response to the rotation radius of the blade 230 It includes an inclined portion 253 extending to be inclined from the coupling portion 251.

This is for the effective cake removal by first removing the cake attached to the inner circumferential surface of the chamber 215 from the inclined portion 253.

In addition, the inclined portion 253 of the auxiliary blade 250 may be formed in parallel with the blade 230, but in this case, the width of the blade 230 is thickened, which causes the friction coefficient to increase. There is a problem that the load increases. In order to solve this problem, in the present embodiment, by inclining one end of the auxiliary blade 250 to form a gap with the blade 230, the friction area is dispersed to reduce the friction coefficient and seal while reducing the load. Get the effect of improving the effect.

The coupling part 251 is formed with a long hole 252 to adjust the coupling position with the blade 230. When the long hole 252 is coupled to the coupling portion 251 and the blade 230 has a predetermined clearance with the inner peripheral surface of the chamber 215, and is easy to combine, and wear occurs and the sealing performance is deteriorated, Through the long hole 252, the auxiliary blade 250 may be repositioned to be positioned at an appropriate position with respect to the inner circumferential surface of the chamber 215. For this reason, the rotary valve 200 according to the present embodiment has a long replacement cycle of the blade 230 through the adjustment of the auxiliary blade 250, the adjustment of the clearance is easy to cope with emergencies, and easy to maintain There is an effect of saving the maintenance cost and time.

The discharge port 213 is provided with a discharge groove 217 in which the cake is discharged from the chamber 215 is provided, the blowing means 260 for blowing air to blow the cake falling into the discharge groove 217 is provided.

The discharge groove 217 is formed to protrude from the outer circumferential surface of the chamber 215, falling into the discharge groove 217 while the cake stored between the blade 230 and another adjacent blade descends, the blowing means 260 It is formed to be transferred to the storage unit 270).

In more detail, the discharge groove 217 is formed such that the blowing means 260 is connected to one side of the blade 230 and the storage unit 270 is connected to the other side of the blade 230 along the longitudinal direction of the blade 230. The cake falling from) can be easily stored. In addition, the blade 230 and the auxiliary blade 250 is partially exposed to the discharge groove 217 while rotating, so that the air supplied from the blowing means 260 is the blade 230 and the auxiliary blade 250 ), You can remove the remaining cake residues.

The blower 260 is a general blower that generates wind by rotating the motor, and thus detailed description thereof will be omitted.

In general, when the rotary valve 200 is continuously used, wear occurs while the blade 230 rotates. In this case, the air pressure generated by the blowing means 260 is transmitted to the inlet 211 through the blade 230 and the inner circumferential surface of the chamber 215 to smoothly pass the cake through the inlet 211. To prevent it from entering. Therefore, the auxiliary blade 250 prevents the air supplied by the blowing means 260 from being moved to the inlet, thereby reducing the clearance of the blade 230 in which the air pressure generated by the blowing means 260 is worn out. By passing through the inlet 211 it can be prevented to interfere with the supply of the cake.

4 is a schematic explanatory diagram of a rotary valve according to another embodiment of the present invention.

Referring to FIG. 4, the rotary valve 163 includes a pressure vessel 10, a cake discharge pipe 161, and a case in which a dryer 150 is adjacent to each other, a blade 230, and an auxiliary blade 250. Hereinafter, the same reference numerals as in the embodiment of the present invention represent the same configuration) (see FIGS. 1 and 2).

Pressure is formed in the pressure vessel 10, and the cake to be supplied to the rotary valve 163 is stored at least a predetermined capacity.

The cake discharge pipe 161 is one side is in communication with the pressure vessel 10, the other side is connected to the rotary valve 163.

The rotary valve 163 is connected to the cake discharge pipe 161 so that one side is in communication with the pressure vessel 10, the other side is located adjacent to the dryer 150 for drying the cake.

The rotary valve 163 is supplied to the dryer 150 in a quantitative manner the cake supplied from the cake discharge pipe 161.

The case has an inlet 211 formed at an upper portion thereof, an outlet 213 formed at a lower portion thereof, and a chamber 215 having a circular cross section is formed between the inlet 211 and the outlet 213. The blade 230 rotates radially to have a predetermined clearance on the inner circumferential surface of the chamber 215.

Accordingly, the auxiliary blade 250 is coupled to the end of the blade 230 to increase the sealing performance to prevent the high pressure of the chamber 215 is applied to the dryer 150 by the high pressure of the dryer 150 To prevent damage.

Structures of the case, blades and auxiliary blades of the rotary valve according to another embodiment of the present invention are the same as the structure of the rotary valve according to the embodiment of the present invention described above will be omitted.

Configurations shown in the embodiments and drawings described herein are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that may be substituted for them at the time of the present application It should be understood that there may be variations and variations.

10: pressure vessel 20: storage vessel
163, 200: rotary valve 210: case
230: blade 250: secondary blade
260: blowing means 270: storage unit

Claims

A case having an inlet formed at an upper portion thereof, an outlet formed at a lower portion thereof, and a chamber having a circular cross section between the inlet portion and the outlet portion;
A blade rotating radially in close contact with the inner circumferential surface of the chamber; And
And an auxiliary blade coupled to an end of the blade to increase sealing performance.

The method according to claim 1,
The auxiliary blade,
A rotary valve disposed forward in the rotational direction of the blade, the coupling portion coupled to an end portion of the blade, and an inclined portion extending inclined from the coupling portion corresponding to the rotation radius of the blade.

The method according to claim 2,
The coupling part,
The rotary valve is formed with a long hole to adjust the engagement position with the blade.

The method according to claim 1,
The outlet port is formed with a discharge groove in which the object discharged from the chamber is formed, the rotary valve further comprises a blowing means for blowing air to blow the object falling into the discharge groove.

A pressure vessel in which pressure is formed and the cake is stored;
An inlet through which the cake discharged from the pressure vessel is supplied is formed, and an outlet through which a dryer for transferring and drying the cake discharged from the lower side is formed is formed adjacently, and a pressure chamber having a circular cross section is formed between the inlet and the outlet. Case;
A blade rotating radially in close contact with the inner circumferential surface of the pressure chamber; And
And an auxiliary blade coupled to an end of the blade to increase sealing performance.

The method according to claim 5,
The auxiliary blade,
A rotary valve disposed forward in the rotational direction of the blade, the coupling portion coupled to an end portion of the blade, and an inclined portion extending inclined from the coupling portion corresponding to the rotation radius of the blade.