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To achieve minimal coke rates in blast furnace operation it is crucial to obtain optimal burning of additional fuels like e.g. pulverized coal (PC). However, there are operating conditions where an optimal burning is not possible. The frequent case of a full or partial raceway blockage can lead to reduced hot blast throughput on the effected tuyere. If PC is injected in that tuyere the unburned coal might lead to locally reduced permeability of the burden.1) To avoid negative effects of high PCI rates, it is necessary to have reliable information of the current raceway condition. This increases also the requirements for the BF process control. A reliable raceway monitoring system must be able to detect blockages quickly to trigger the shutdown of PCI branches with short latency. The different nature of raceway blockages (which shall also be denoted as events in the further discussion) has been discussed in part 1.2) The frequency of occurrence may vary strongly between different furnaces and operating condition. Short blockages of only a few seconds duration may be observed several times per hour but are not relevant for BF operation. However, some blockages on BF1 at voestalpine Stahl Donawitz GmbH have been observed to last of more than 30 minutes in extreme cases. In these cases, the continuous injection of pulverized coal is not desirable and the PCI branch on the affected tuyere should be shut down to avoid accumulation of unburned coal particles. In this second part of the paper we will address blockage Improving Blast Furnace Raceway Blockage Detection. Part 2: Signal Processing of Hot Blast Pressure Data