JPH064896Y2 - Discharge valve of agitated fluid mixer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a discharge valve of an agitated flow mixer.

[Conventional technology]

Generally, the discharge valve of the agitated flow type mixer has a discharge box at the lower part of which a valve box is projected outward from the periphery of the opening formed in the bottom of the side wall of the mixing tank having a jacket, and the above-mentioned opening is provided. A valve element that is closed and forms a part of the side wall moves into the valve box to open the opening.

[Problems to be solved by the device]

However, in such a conventional one, although a portion other than the valve body of the mixing tank can be easily heated by putting an appropriate heating medium in the jacket, a part of the side wall of the mixing tank is heated. The eggplant valve could not be heated by the heat medium.

Therefore, the temperature of the side wall of the valve body is lower than that of the other parts of the mixing tank, and when handling a high-humidity processed product, the processed product adheres to the valve body and grows. There is a problem that not only the defective mixing of the above may occur, but also the defective opening of the valve body may occur.

This invention solves the problems of the conventional ones described above, and provides an agitated flow type mixer capable of preventing the occurrence of poor mixing of a high-humidity processed material and poor valve opening. The purpose is to provide a discharge valve.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the present invention has a valve box protruding outward from the periphery of an opening formed at the bottom of a side wall of a mixing tank having a jacket and having a discharge nozzle at a lower portion thereof. A valve body that closes the opening and forms a part of the side wall,
In the discharge valve of the agitation flow type mixer which moves into the valve box and opens the opening, an electric heater is installed on the back side of the valve body, and an electric conductor of the electric heater is connected to the valve body. And a distal end of the electric lead wire which is pulled out from the valve rod and is connected to a control panel.

[Action]

By adopting the above-mentioned means in this invention, the valve body is heated by the electric heater.

〔Example〕

 An embodiment of the present invention shown in the drawings will be described below.

1 to 3 show an embodiment of a discharge valve of a stirred-flow mixer according to the present invention, and the discharge valve 1 is installed at the bottom of a side wall of a mixing tank 2 of the stirred-flow mixer. Has been done.

First, with reference to FIG. 3, the entire agitated flow type mixer will be described.

The agitated flow type mixer includes a motor 4 installed on the upper surface of a gantry 3 and a mixing tank 2 driven by the motor 4.

The mixing tank 2 has a vertical cylindrical shape, a main shaft 5 is rotatably provided at the center of the bottom, and stirring blades 6 and 7 are fixed to the main shaft 5 by a cap nut 8.

The main shaft 5 is rotatably driven by the motor 4 via a V-belt (not shown) arranged inside the frame 3.

A lid 9 is fixed to the upper portion of the mixing tank 2 by a bolt 10.

A jacket 11 is formed on the side wall and bottom wall of the mixing tank 2 excluding the lid 9, and the nozzle 11 is formed in the jacket 11.
The mixing tank 2 can be heated or cooled by inflowing and outflowing an appropriate heat medium or refrigerant from 2 and 13.

In addition, an opening 14 including a curved portion connecting the side wall and the bottom wall is formed in the bottom portion of the side wall of the mixing tank 2, and the discharge valve 1 is installed in this portion.

The discharge valve 1 is provided with a valve box 15 protruding outward from the periphery of the opening 14, a discharge nozzle 16 is formed in the lower part of the valve box 15, and a lid 17 for inspection is provided in the upper part. Has been.

Further, the discharge valve 1 includes a valve body 18 having a shape that closes the opening 14 and forms a part of the side wall of the mixing tank 2.
Moves into the valve box 15 to open the opening 14.

As shown in FIG. 1, a hollow tubular valve rod 19 extending along the direction of movement is provided at the center of the back surface of the valve body 18, and the valve rod 19 is formed in the valve box 15. Support part 20
Is supported by bushes 21 and 22 provided on the valve body so as to be able to move forward and backward along the axial direction thereof.
Are supported by the support portion 20 of the valve box 15 via the valve rod 19.

A boss 23 is fixed to a protruding portion of the valve rod 19 extending outward from the support portion 20 of the valve box 15 by a nut 24.

As shown in FIG. 2, the boss 23 is a boss for the support member 25.

That is, air cylinders 27 are attached to both sides (only part of which is shown) of the valve box 15 via pins 26, and the air cylinders 27 (also provided on the other side of the valve box 15). Piston 28 (not shown) is pin 29
It is connected to the support member 25 via.

Therefore, the valve body 18 moves into the valve box 15 through the support member 25 and the valve rod 19 when the two air cylinders 27 (only one of which is shown) operate in the direction of projecting the piston 28. To open the opening 14, and when the two air cylinders 27 operate in the direction to pull in the piston 28, the support member 25 and the valve rod 19
Through, to move in the opposite direction to close the opening 14.

As shown in FIG. 1, on the back side of the valve body 18, a band heater or other appropriate electric heater 30 is fixed to the valve body 18 by bolts 31 in close contact therewith, and also protects the electric heater 30. The cover 32 is fixed by bolts 33.

The electric wire 34 of the electric heater 30 is drawn inside the hollow portion of the valve rod 19 inside the cover 32, passes through the inside of the valve rod 19, and is led out from the tip thereof to the outside.

At the tip of the valve rod 19, the electric conducting wire 34 is fixed to the valve rod 19 by a fixture 35, so that the electric conducting wire 34 does not move inadvertently inside the valve rod 19.

Then, the electric wire 34 that has come out from the tip of the valve rod 19
The end of the control panel 36 controls the energization of the electric heater 30.
It is connected to the.

Next, the operation of the above will be described.

First, with the valve element 18 closing the opening 14, the processed material is put into the mixing tank 2 and the blades 6 and 7 are rotated by the motor 4, and the processed material is agitated to flow and mix. .

At this time, if necessary, an appropriate heat medium is caused to flow into and out of the jacket 11 from the nozzles 12 and 13, and the electric heater 30 is energized from the control panel 36 via the electric conducting wire 34 to heat the mixing tank 2. To be done.

Therefore, even in the case of handling a high-humidity processed product, the processed product is smoothly and quickly stirred and fluidized by being stirred by the blades 6 and 7 while heating the mixing tank 2. Become.

Moreover, since the mixing tank 2 is not only heated by the heat medium in the jacket 11, but also the valve body 18 not equipped with the jacket 11 is also heated by the electric heater 30, the processed material having a high moisture content is not heated by the valve body 18. Therefore, the occurrence of poor mixing of the processed products and the occurrence of poor opening of the valve body 18 are prevented in advance.

When the air cylinder 27 is operated in the protruding direction of the piston 28 after the mixing process is completed, the support member 2
The valve element 18 moves into the valve box 15 through the valve 5 and the valve rod 19 to open the opening 14.

As a result, the processed material in the mixing tank 2 is discharged from the discharge nozzle 16 through the opening 14 and the valve box 15.

At this time, since the electric heater 30 is protected by the cover 32 and the electric conductor 34 is housed in the valve rod 19, there is no possibility that the electric heater 34 and the electric conductor 34 come into contact with the object to be treated. The occurrence of disconnection accidents can be prevented in advance.

[Effect of device]

As described above, the invention is such that the valve box is projected outward from the periphery of the opening formed in the bottom of the side wall of the mixing tank having the jacket, and the discharge nozzle is provided at the lower part of the valve box to close the opening and close the side wall. In the discharge valve of the agitated flow type mixer, wherein the valve body forming a part of is moved into the valve box to open the opening, an electric heater is installed on the back side of the valve body,
The electric conductor of the electric heater is passed through a hollow tubular valve rod which is provided on the valve body so as to project along the moving direction thereof and extends to the outside of the valve box. With the configuration in which the tip is connected to the control panel, the valve body without the jacket can be heated by the electric heater, so that even when treating a high-humidity treated object, the treated object is treated. Can be prevented from adhering to and growing on the valve body, causing poor mixing of the processed materials and opening failure of the valve body. Moreover, compared to the case where a jacket is provided on the valve body instead of the electric heater. In addition, the structure is simple, the manufacturing is easy, the cost is low, and there is no fear of accident such as mixing into the processed material due to liquid leakage.

[Brief description of drawings]

FIG. 1 is a vertical sectional front view showing an embodiment of a discharge valve of a stirring-flow mixer according to the present invention, FIG. 2 is a partially cutaway plan view of the one shown in FIG. 1, and FIG. 3 is a stirring-flow mixing. It is a vertical front view showing the whole machine. 1 ... Discharge valve 2 ... Mixing tank 3 ... Stand 4 ... Motor 5 ... Main shaft 6, 7 ... Blade 8 ... Cap nut 9, 17 ... Lid 10, 31, 33 ... Bolt 11 ... Jacket 12, 13 ... Nozzle 14 ... Opening 15 ... Valve box 16 ... Discharge nozzle 18 ... Valve body 19 ... Valve rod 20 ... Support part 21, 22 ... Bushing 23 ... Boss 24 ... Nut 25 ... Support member 26, 29 ... Pin 27 ... Air cylinder 28 ... Piston 30 ... Electric heater 32 ... Cover 34 ... Electrical lead 35 ... Fixing device 36 ... Control panel

Claims (1)

[Scope of utility model registration request] 1. A valve box is provided so as to project outward from the periphery of an opening formed in a bottom portion of a side wall of a mixing tank having a jacket, and a discharge nozzle is provided at a lower portion of the valve box, and the opening is closed to partially cover the side wall. In the discharge valve of the agitation flow type mixer in which the valve body forming the valve moves into the valve box to open the opening, an electric heater is installed on the back side of the valve body, and an electric heater of the electric heater is installed. The lead wire is passed through a hollow tubular valve rod that is provided on the valve body so as to project along the moving direction and extends to the outside of the valve box, and the tip of the electrical lead wire that has come out of the valve rod is used as a control panel. The discharge valve of the agitated flow type mixer characterized by being connected.