Water-containing substance detection device, water-containing substance detection method, and method of manufacturing rubbery polymer

Patent metadata

Field	Value
Publication number	US-11397157-B2
Application number	US-201816497034-A
Country	US
Kind code	B2
Filing date	Mar 26, 2018
Priority date	Mar 30, 2017
Publication date	Jul 26, 2022
Grant date	Jul 26, 2022

Abstract

A water-containing substance detection device that detects a water-containing rubbery polymer, includes a conveyor configured to convey rubbery polymers; and a detector configured to detect the water-containing rubbery polymer among the rubbery polymers, conveyed by the conveyor, by a temperature sensor. The conveyor has a surface with an emissivity of 0.50 or more. The temperature sensor has a frame rate falling within a range of 5 Hz to 120 Hz. The detector detects the water-containing rubbery polymer, near an ejection port of the conveyor, and on a downstream side of the ejection port.

First claim

What is claimed is:

1. A water-containing substance detection device that detects a water-containing rubbery polymer among rubbery polymers, comprising:
a conveyor configured to convey the rubbery polymers, the conveyor having a surface with an emissivity of 0.50 or more;
a detector configured to detect the water-containing rubbery polymer among the rubbery polymers, conveyed by the conveyor, by a temperature sensor, and
an inclined surface arranged on an ejection port side of the conveyor, the inclined surface having a surface with an emissivity of 0.50 or more and a property of substantially eliminating overlapping of the rubbery polymers, and the inclined surface being inclined downward with respect to the conveyor,
the temperature sensor having a frame rate falling within a range of 5 Hz to 120 Hz, and
the detector detecting the water-containing rubbery polymer among the rubbery polymers on the inclined surface,
wherein the detector includes a capturing unit configured to capture a real image of the water-containing rubbery polymer,
wherein the detector detects a size and a position of the water-containing rubbery polymer captured by the capturing unit, and
wherein a frame rate and a number of pixels in the capturing unit are greater than the frame rate and a number of pixels in the temperature sensor.

2. The water-containing substance detection device according to claim 1 further comprising:
a heater configured to heat the conveyor.

3. The water-containing substance detection device according to claim 1 further comprising:
a collector configured to collect the water-containing rubbery polymer, when the temperature sensor detects the water-containing rubbery polymer among the rubbery polymers.

4. The water-containing substance detection device according to claim 3 ,
wherein the collector includes a plurality of doors, and
wherein each of the doors opens and closes depending on a size and a position of the water-containing rubbery polymer detected by the detector.

5. A water-containing substance detection method for detecting a water-containing rubbery polymer comprising:
conveying rubbery polymers by a conveyor having a surface with an emissivity of 0.50 or more to an inclined surface arranged on an ejection port side of the conveyor to thereby substantially eliminate overlapping of the rubbery polymers, the inclined surface having a surface with an emissivity of 0.50 or more, the inclined surface being inclined downward with respect to the conveyor;
detecting the water-containing rubbery polymer among the rubbery polymers during being conveyed by the conveyor, by a temperature sensor having a frame rate falling within a range of 5 Hz to 120 Hz,
the temperature sensor detecting the water-containing rubbery polymer among the rubbery polymers on the inclined surface,
capturing a real image of the water-containing rubbery polymer, and
detecting a size and a position of the captured water-containing rubbery polymer,
wherein a frame rate and a number of pixels in capturing the real image are greater than the frame rate and a number of pixels in the temperature sensor.

6. The water-containing substance detection method according to claim 5 further comprising:
heating the conveyor.

7. The water-containing substance detection method according to claim 5 further comprising:
collecting a water-containing rubbery polymer into a collector, when the temperature sensor detects the water-containing rubbery polymer among the rubbery polymers.

8. The water-containing substance detection method according to claim 7 ,
wherein the collector includes a plurality of doors, and
wherein the water-containing substance detection method further comprising:
opening and closing each of the doors depending on a size and a position of the water-containing rubbery polymer detected by the temperature sensor.

9. A method of manufacturing a rubbery polymer including:
solidifying a polymer solution of rubbery polymer, to prepare a slurry of rubbery polymer;
dehydrating the slurry;
forming crumbs of rubbery polymer from the dehydrated slurry of rubbery polymer; and
drying the crumbs of rubbery polymer, the method further comprising:
conveying the dried crumbs of rubbery polymer by a conveyor having a surface with an emissivity of 0.50 or more to an inclined surface arranged on an ejection port side of the conveyor to thereby substantially eliminate overlapping of the rubbery polymers, the inclined surface having a surface with an emissivity of 0.50 or more, and the inclined surface being inclined downward with respect to the conveyor;
detecting a water-containing crumb of rubbery polymer among the crumbs of rubbery polymer on the inclined surface, by a temperature sensor having a frame rate falling within a range of 5 Hz to 120 Hz;
capturing a real image of the water-containing rubbery polymer, and detecting a size and a position of the captured water-containing rubbery polymer, a frame rate and a number of pixels in capturing the real image being greater than the frame rate and a number of pixels in the temperature sensor; and
collecting a water-containing crumb of rubbery polymer, when the water-containing crumb of rubbery polymer is detected among the crumbs of rubbery polymer by the temperature sensor.

10. The method of manufacturing a rubbery polymer according to claim 9 further comprising:
returning the collected water-containing crumb of rubbery polymer to the drying the crumbs of rubbery polymer.

Assignees

• Zeon Corp

Inventors

• Nakamura Masao

Classifications

• G01N33/445 Primary

  Rubber · CPC title

• G01N25/56 Primary

  by investigating moisture content · CPC title

• G01J2005/0077

  Imaging · CPC title

• G01J5/0022

  for sensing the radiation of moving bodies · CPC title

• C08C2/06

  Winning of rubber from solutions · CPC title