Batch mixer with plunger

Patent metadata

Field	Value
Publication number	US-9649805-B2
Application number	US-201414471220-A
Country	US
Kind code	B2
Filing date	Aug 28, 2014
Priority date	Nov 30, 2011
Publication date	May 16, 2017
Grant date	May 16, 2017

Abstract

A batch mixer is equipped with a plunger for pushing material from the batch mixer. The batch mixer includes a mixer tank structured to accommodate material. The mixer further includes a mixer head comprising at least one blade structured to blend the material within the mixer tank. The mixer further includes a plunger mechanism structured to push the blended material directly from the mixer tank.

First claim

What is claimed is:

1. A method of mixing material, comprising:
placing material within a tank;
placing a mixing head on the tank, the mixing head being rotatably mounted to a shaft and moveable relative to the shaft and along a length of the shaft;
mixing the material within the tank with the mixing head;
removing the mixing head from the tank;
placing a plunger mechanism on the tank, the plunger mechanism being rotatably mounted to the shaft and moveable relative to the shaft and along the length of the shaft;
moving the plunger mechanism within the tank to push the mixed material from a die; and
removing the plunger mechanism from the tank.

2. The method of claim 1 , wherein the mixing the material within the tank further comprises blending the material using one or more blades within the tank.

3. The method of claim 1 , wherein the mixing is one of:
solid-solid mixing;
liquid-solid mixing;
liquid-liquid mixing; and
gas-liquid mixing.

4. The method of claim 1 , further comprising rotating and moving the mixing head in a vertical direction along the length of the shaft when the mixing head is placed into the tank.

5. The method of claim 4 , wherein the rotating and the moving of the mixing head in the vertical direction along the length of the shaft is limited by a first pin and a second pin.

6. The method of claim 5 , further comprising rotating and moving the plunger mechanism in the vertical direction along the length of the shaft when the plunger mechanism is placed into the tank.

7. The method of claim 6 , wherein the placing of the plunger mechanism in the tank further comprises sealing the plunger mechanism to the tank.

8. The method of claim 6 , wherein the rotating and the moving of the plunger mechanism in the vertical direction along the length of the shaft is limited by a third pin and the second pin.

9. The method of claim 6 , wherein the rotating and the moving of the plunger mechanism along the length of the shaft comprises activating a motor to lower the plunger mechanism into the tank and push the mixed material through the die.

10. The method of claim 1 , wherein the plunger mechanism is a screw plunger.

11. The method of claim 1 , further comprising adjusting a valve to control a flow rate of the mixed material from the die.

12. The method of claim 1 , further comprising adjusting a force applied to the plunger mechanism to control a flow rate of the mixed material from the die.

13. The method of claim 1 , further comprising guiding the mixed material through a water bath, wherein the water bath maintains a stable temperature of the mixed material.

14. The method of claim 1 , further comprising guiding the mixed material through a pellitizer which uses mechanical force and thermal processes to produce pellets from the mixed material.

15. The method of claim 1 , further comprising one of providing purge gases or a vacuum into the tank.

16. The method of claim 1 , wherein the plunger mechanism is mounted to and spaced from the shaft by a first arm extending between the shaft and the plunger mechanism and the mixing head is mounted to and spaced from the shaft by a second arm extending between the shaft and the mixing head.

17. The method of claim 16 , wherein:
a first mechanical structure is mounted on the shaft;
a second mechanical structure is mounted on the shaft; and
a third mechanical structure is mounted on the shaft.

18. The method of claim 4 , wherein the shaft is stationary as the mixing head is rotating and moving in the vertical direction along the length of the shaft.

Assignees

• King Abdulaziz City Sci & Tech

Inventors

• Alsewailem Fares D

Classifications

• B29C48/285

  Feeding the extrusion material to the extruder · CPC title

• B29C48/29

  in liquid form · CPC title

• B29B7/26

  for discharging, e.g. doors · CPC title

• B29L2031/772

  Articles characterised by their shape and not otherwise provided for (closed loop B29L2031/709; ring-like B29L2031/7096; corrugated B29L2016/00, flat B29L2007/00; hollow B29L2022/00; screw-threaded B29L2001/00; toothed B29L2031/775; corrugated tubes B29L2023/18) · CPC title

• B29C48/288

  in solid form, e.g. powder or granules · CPC title