System and methods of charged particle detectors for blast furnace imaging
View Patent ↗Imaging technology using high energy charged particles can be used to image an object of inspection such as a blast furnace. An example method of imaging a blast furnace includes performing a first moving operation by moving a first particle tracking detector and a second particle tracking detector up or down movement along a height of the blast furnace; performing a second moving operation by moving the first particle tracking detector and the second particle tracking detector clockwise or counterclockwise movement around the blast furnace; and receiving, by the first particle tracking detector, incoming charged particles; receiving, by the second particle tracking detector, outgoing charged particles transiting through the blast furnace; and producing an image of a volume of interest located in between the first particle tracking detector and the second particle tracking detector by processing electrical signals corresponding to the received incoming and outgoing charged particles.
1. A particle measurement system, comprising:
a blast furnace;
a first particle tracking detector located adjacent to the blast furnace to receive incoming charged particles, the first particle tracking detector configured to measure position and direction of the incoming charged particles received thereon; and
a second particle tracking detector located adjacent to the blast furnace to receive outgoing charged particles after transiting through the blast furnace and to measure position and direction of the outgoing charged particles received thereon;
wherein the first particle tracking detector and the second particle tracking detector are movably coupled to a mechanical support structure,
wherein the first particle tracking detector and the second particle tracking detector are movable up or down along a height of the blast furnace,
wherein the first particle tracking detector and the second particle tracking detector are movable clockwise or counterclockwise around the blast furnace,
wherein a location of the first particle tracking detector next to a side of the blast furnace is higher than that of the second particle tracking detector,
wherein the first particle tracking detector and the second particle tracking detector are respectively configured to produce electrical signals corresponding to the received incoming and outgoing charged particles, and wherein the electrical signals, when received by and processed by a processor, enable construction of an image of a volume of interest located in between the first particle tracking detector and the second particle tracking detector,
wherein the particle measurement system includes the processor and a memory with instructions stored therein, wherein the instructions when executed by the processor cause the processor to:
produce the image based on processing information associated with the received electrical signals, and
produce a three-dimensional image of contents inside the blast furnace that includes a cohesion zone where metallic objects melt in the blast furnace or a deadman zone where coke is stagnant in the blast furnace,
wherein a first mobile assembly comprising the first particle tracking detector and a third particle tracking detector are located adjacent to the blast furnace,
wherein a gap separates the first particle tracking detector and the third particle tracking detector in a vertical direction along the height of the blast furnace, and
wherein the first particle tracking detector is movable relative to the third particle tracking detector such that the gap between the first particle tracking detector and the third particle tracking detector is adjustable.
2. The particle measurement system of claim 1 ,
wherein the first particle tracking detector and the second particle tracking detector respectively include a first side and a second side that faces the blast furnace, and
wherein a surface area of the first side or the second side is selected based on a distance between an outer perimeter of the blast furnace and the first particle tracking detector or the second particle tracking detector.
3. The particle measurement system of claim 1 , wherein the first particle tracking detector and the second particle tracking detector are movable up or down along the height of the blast furnace at a same time.
4. The particle measurement system of claim 1 , wherein the first particle tracking detector and the second particle tracking detector are movable up or down along the height of the blast furnace while a position of the first particle tracking detector relative to that of the second particle tracking detector is kept the same.
5. The particle measurement system of claim 1 ,
wherein the first particle tracking detector, the second particle tracking detector, and at least one additional particle tracking detector are located around a perimeter of the blast furnace,
wherein the at least one additional particle tracking detector are movably coupled to the mechanical support structure, and
wherein at least some portion of the height of the blast furnace overlaps with heights of the first particle tracking detector, the second particle tracking detector, and the at least one additional particle tracking detector.
6. The particle measurement system of claim 5 , wherein the first particle tracking detector, the second particle tracking detector, and the at least one additional particle tracking detector form a geometric pattern around the blast furnace.
7. The particle measurement system of claim 1 , wherein each of the first particle tracking detector and the second particle tracking detector are enclosed in a housing that has an air conditioning equipment configured to control a temperature and a humidity in the housing.
8. The particle measurement system of claim 1 , wherein the first particle tracking detector and the second particle tracking detector are located adjacent to fans or air conditioning equipment that are configured to blow air on the first particle tracking detector and the second particle tracking detector.
9. The particle measurement system of claim 1 , wherein the first particle tracking detector and the second particle tracking detector are located at a pre-determined distance away from an outer perimeter of the blast furnace.
10. The particle measurement system of claim 1 , wherein the instructions when executed by the processor cause the processor to produce the image that comprises an estimate of a spatial map of atomic number and density of the volume of interest.
11. The particle measurement apparatus of claim 1 , wherein the instructions when executed by the processor cause the processor to produce an indication of a presence of cracks or seams in a hearth in the blast furnace in the image.
12. The particle measurement system of claim 1 , wherein the instructions when executed by the processor cause the processor to produce an indication of a presence of cracks in an outer wall of the blast furnace in the image.
13. The particle measurement system of claim 1 ,
wherein the instructions when executed by the processor cause the processor to produce a sub-volume in the image,
wherein the sub-volume is associated with a pre-determined region within the blast furnace,
wherein the pre-determined region is associated with a first imaging accuracy, and
wherein a time to develop the sub-volume for the image is longer than that for another sub-volume associated with another region within the blast furnace associated with a second imaging accuracy that is less than the first imaging accuracy.
14. The particle measurement system of claim 1 , wherein the instructions when executed by the processor cause the processor to send instructions to one or more motors associated with the mechanical support structure, wherein the instructions cause the first particle tracking detector and the second particle tracking detector to move up or down and to move clockwise or counterclockwise.
15. A method of imaging a blast furnace, comprising:
performing a first moving operation by moving a first particle tracking detector and a second particle tracking detector up or down movement along a height of the blast furnace, wherein a location of the first particle tracking detector next to a side of the blast furnace is higher than that of the second particle tracking detector,
wherein a first mobile assembly comprising the first particle tracking detector and a third particle tracking detector are located adjacent to the blast furnace,
wherein a gap separates the first particle tracking detector and the third particle tracking detector in a vertical direction along the height of the blast furnace, and
wherein the first particle tracking detector is movable relative to the third particle tracking detector such that the gap between the first particle tracking detector and the third particle tracking detector is adjustable;
performing a second moving operation by moving the first particle tracking detector and the second particle tracking detector clockwise or counterclockwise movement around the blast furnace; and
after the first moving operation and after the second moving operation is performed:
receiving, by the first particle tracking detector, incoming charged particles;
receiving, by the second particle tracking detector, outgoing charged particles transiting through the blast furnace;
producing an image of a volume of interest located in between the first particle tracking detector and the second particle tracking detector by processing electrical signals corresponding to the received incoming and outgoing charged particles; and
producing a three-dimensional image of contents inside the blast furnace that includes a cohesion zone where metallic objects melt in the blast furnace or a deadman zone where coke is stagnant in the blast furnace.
16. The method of claim 15 , comprising performing the up or down movement of the first particle tracking detector and the second particle tracking detector at a same time; and performing the up or down movement of the first particle tracking detector and the second particle tracking detector while keeping a position of the first particle tracking detector relative to that of the second particle tracking detector the same.
17. The method of claim 15 , wherein the image comprises an estimate of a spatial map of atomic number and density of the volume of interest.
18. The method of claim 15 , wherein an indication of a presence of cracks or seams in a hearth in the blast furnace is produced in the image.
19. The method of claim 15 , wherein an indication of a presence of cracks in an outer wall of the blast furnace is produced in the image.
20. The method of claim 15 ,
wherein a sub-volume is produced in the image,
wherein the sub-volume is associated with a pre-determined region within the blast furnace,
wherein the pre-determined region is associated with a first imaging accuracy, and
wherein a time to develop the sub-volume for the image is longer than that for another sub-volume associated with another region within the blast furnace associated with a second imaging accuracy that is less than the first imaging accuracy.