Remote inspection, removal, and installation of refractory

Patent metadata

Field	Value
Publication number	US-11644242-B2
Application number	US-201916709983-A
Country	US
Kind code	B2
Filing date	Dec 11, 2019
Priority date	Dec 26, 2018
Publication date	May 9, 2023
Grant date	May 9, 2023

Abstract

A method of treating refractory-lined equipment includes accessing an interior of the refractory-lined equipment with an equipment repair apparatus, wherein the equipment repair apparatus includes a robotic arm and one or more end effectors coupled to an end of the robotic arm, inspecting refractory material that lines an inner wall of the refractory-lined equipment with a first end effector coupled to the end of the robotic arm, removing damaged refractory material from the inner wall with a second end effector coupled to the end of the robotic arm, removing one or more anchors from the inner wall with a third end effector coupled to the end of the robotic arm, and installing new refractory material on the inner wall with a fourth end effector coupled to the end of the robotic arm.

First claim

The invention claimed is:

1. A method of treating refractory-lined equipment, comprising:
accessing an interior of the refractory-lined equipment with an equipment repair apparatus, wherein the equipment repair apparatus includes a main body supported by a chassis and a lifting mechanism for selectively adjusting a height of the main body relative to the chassis, one or more wheels coupled to the chassis, a robotic arm extending from the main body and an actuation device or drive cables for articulating the robotic arm, and one or more end effectors coupled to an end of the robotic arm;
inspecting refractory material that lines an inner wall of the refractory-lined equipment with a first end effector coupled to the end of the robotic arm;
removing damaged refractory material from the inner wall with a second end effector coupled to the end of the robotic arm;
removing one or more anchors from the inner wall with a third end effector coupled to the end of the robotic arm;
installing new refractory material on the inner wall with a fourth end effector coupled to the end of the robotic arm;
adjusting the height of the main body relative to the chassis with the lifting mechanism during one or more of the inspecting refractory material, removing damaged refractory material, removing one or more anchors, and installing new refractory material; and
articulating the robotic arm with the actuation device or drive cables during one or more of the inspecting refractory material, removing damaged refractory material, removing one or more anchors, and installing new refractory material.

2. The method of claim 1 , wherein accessing the interior of the refractory-lined equipment with the equipment repair apparatus comprises extending the robotic arm and the one or more end effectors into an interior of the refractory-lined equipment via an opening in a vessel wall of the refractory-lined equipment.

3. The method of claim 1 , wherein accessing the interior of the refractory-lined equipment with the equipment repair apparatus comprises positioning the equipment repair apparatus entirely within an interior of the refractory-lined equipment.

4. The method of claim 1 , wherein inspecting the refractory material is preceded by cleaning the refractory material that lines the inner wall of the refractory-lined equipment with a fifth end effector coupled to the end of the robotic arm.

5. The method of claim 4 , wherein the fifth end effector is selected from the group consisting of a water jet, a rotating head or brush, a jackhammer, a chemical cleaning apparatus, a vacuum, a grit blaster, a jet blaster, and any combination thereof.

6. The method of claim 1 , wherein the first end effector is selected from the group consisting of a camera, a laser, a laser profiling head, a sonar inspection device, a profilometer, an acoustic inspection device, an ultrasonic inspection device, a mechanical testing device, a hardness tester, a die penetration tester, and any combination thereof.

7. The method of claim 1 , wherein the second end effector is selected from the group consisting of a jackhammer, a water jet, a cutting device, a jet blaster, a grit blaster, and any combination thereof.

8. The method of claim 1 , wherein the third end effector is selected from the group consisting of a snipping tool, a grinder, an air carbon arc cutter, and any combination thereof.

9. The method of claim 1 , wherein installing the new refractory material is preceded by: preparing a surface of the inner wall with a fifth end effector coupled to the end of the robotic arm;
installing one or more new anchors on the inner wall with a sixth end effector coupled to the end of the robotic arm; and
inspecting the one or more new anchors with a seventh end effector coupled to the end of the robotic arm.

10. The method of claim 9 , wherein the fifth end effector comprises a grinder or a grit blaster, and preparing the surface of the inner wall comprises removing refractory and debris from the inner wall to expose an underlying metal surface of the inner wall.

11. The method of claim 9 , wherein installing the one or more new anchors comprises welding the one or more new anchors to the inner wall with an eighth end effector coupled to the end of the robotic arm.

12. The method of claim 9 , wherein the seventh end effector is selected from the group consisting of a camera, a hammer, a torqometer, a die penetration tester, a hardness tester, and any combination thereof.

13. The method of claim 1 , wherein the fourth end effector comprises a nozzle assembly and the new refractory material is installed by one or more of pneumatic gunning, wet gunning, pumping into forms, pumping into a balloon or bladder, and any combination thereof.

14. The method of claim 1 , further comprising finally inspecting the new refractory material with a fifth end effector coupled to the end of the robotic arm.

15. A system for treating refractory-lined equipment, comprising: an equipment repair apparatus having a main body supported by a chassis and a lifting mechanism to selectively adjust a height of the main body relative to the chassis, one or more wheels coupled to the chassis, a robotic arm extending from the main body and an actuation device or drive cables to articulate the robotic arm, and a plurality of effectors coupled to an end of the robotic arm, wherein at least the robotic arm and the plurality of end effectors are positionable within an interior of refractory-lined equipment; a control module in communication with the equipment repair apparatus and including a computer system operable to control operation of the equipment repair apparatus; a first end effector of the plurality of end effectors that inspects refractory material lining an inner wall of the refractory-lined equipment; a second end effector of the plurality of end effectors that removes damaged refractory material from the inner wall; a third end effector of the plurality of end effectors that removes one or more anchors from the inner wall; and a fourth end effector of the plurality of end effectors that installs new refractory material on the inner wall.

Assignees

• Exxonmobil Technology & Engineering Company

Inventors

• Yoder Patrick L
• Fowler Christopher J
• Schlett Aaron M
• Johnsen Laura E

Classifications

• F27D21/0021 Primary

  Devices for monitoring linings for wear · CPC title

• B25J11/0085

  Cleaning · CPC title

• B25J11/005

  Manipulators for mechanical processing tasks · CPC title

• B01J19/02 Primary

  Apparatus characterised by being constructed of material selected for its chemically-resistant properties · CPC title

• F27D2021/026

  using a video installation · CPC title