A method for judging the assimilation temperature of iron ore powder based on the change of electric signal
A technology of iron ore powder and electrical signal, which is applied in the field of detection of iron ore powder sintering characteristics, can solve the problems of large influence of subjective factors and inaccurate detection results, and achieve the effect of improving accuracy
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Embodiment 1
[0046] Such as Figure 10 As shown, in this embodiment, a method for judging the assimilation temperature of iron ore powder based on the change of electric signal, the iron ore powder sample 400 is placed in the heating unit 100, and the electric current of the iron ore powder sample 400 is detected during the heating process. For signal changes, the assimilation temperature of the iron ore powder is judged by the change of the electric signal of the iron ore powder sample 400 . Specific steps are as follows:
[0047] Step 1. Equipment assembly
[0048] A. Weigh 2g of CaO powder with a purity of 98.0% with a balance, and press it into a convex mold under a pressure of 20MPa Calcium Oxide Press Sheet 130 with grooves.
[0049] B. Place the first electrode 221 with a diameter of 0.8mm in the groove of the calcium oxide tablet 130, and then evenly add calcium oxide powder to the groove, the first electrode 221 is completely covered in the lower part of the calcium oxide powd...
Embodiment 2
[0081] Such as Figure 4 As shown, the basic content of this embodiment is the same as that of Embodiment 1, except that the first electrode 221 and the second electrode 222 are arranged in parallel, and the horizontal distance between the first electrode 221 and the second electrode 222 is d, where d≤ R / 2, the present embodiment takes d=R / 2, and R is the diameter of the accumulation surface of the iron ore powder sample 400 on the calcium oxide tablet 130 . The first electrode 221 and the second electrode 222 run through the calcium oxide tablet 130, thereby improving the accuracy of detection, so that as long as the iron ore powder is assimilated in one place, the change of the electrical signal can be detected in time, thereby improving the detection accuracy. accuracy. In this embodiment, the thickness between the top of the electrode hole 131 and the upper surface of the calcium oxide sheet 130 is δ, and δ is 0.2-2mm. In this embodiment, δ=0.5mm.
Embodiment 3
[0083] Such as Figure 8 As shown, the basic content of this embodiment is the same as that of Embodiment 1, except that the first electrode 221 of this embodiment is placed in the calcium oxide pellet 130 , and the second electrode 222 is placed in the iron ore powder sample 400 . The detection unit 200 is located on the upper part of the iron ore powder sample 400, and the detection unit 200 is located directly above the first electrode 221, and the temperature measurement end 211 of the detection unit 200 is close to the iron ore powder sample 400, so that the temperature measurement end 211 can promptly and quickly detect the temperature when the assimilation reaction of iron ore powder occurs, and improve the accuracy of detection.
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