JPS5910417B2 - Granular iron ore reduction powder test equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for reducing and powdering a sample of granular iron ore, weighing the sample before and after the reduction, and testing the quality of the sample.

Conventionally, in this type of test equipment, weighing the sample is an important process, but most of the operations for this are manual.For example, when weighing a sample after reduction, there is a In reality, samples are transferred from a reduction furnace to a weighing machine, etc. by being loaded onto a handcart or the like, and then weighed manually.

Therefore, there is a disadvantage 5 that the efficiency inevitably decreases significantly. The present invention aims to provide a testing device that fundamentally eliminates the conventional acquisition work method and automates it.

In other words, in view of the importance of sample transfer, this invention
The present invention attempts to provide a continuous and automatic sample reduction/pulverization testing device for granular iron ore by providing two types of vessels, one for reduction and one for pulverization. The present invention will be described below with reference to embodiments shown in the drawings.

FIG. 1 is a side view of the apparatus according to the invention, FIG. 152 is a plan view, and FIG. 3 is a detailed view of the vessel. In the figure 1
2 is a sample feeder for feeding a new sample; 2, 21, and 22 are vessels; 21 is a vessel for weighing and storing the sample newly supplied from the feeder 1; the sample is transferred to the reduction furnace 6; This is a return vessel for transferring up to 20 yen. Its structure, as shown in the opening of FIG. 3, has holes H and H' for passing the reducing gas downward, and the upper and lower parts are tapered T1 and are tightly sealed with the connecting part in the reducing furnace 6. 22 is a rotary powdering machine 725 that stores the reduced sample after weighing it.
As shown in FIG. 3A, this is a powdering vessel for transporting the sample to a container, and its structure is such that the sample after reduction can be sufficiently accommodated without having a hole in the bottom.

3 connects the vessels 21 and 22 to a special vessel section 9 of a weighing machine 5, a vessel storage area 4, a reduction furnace 6, and a powdering facility 3, respectively.
A vessel transfer machine (auto... ), Vessel storage area 4
Reference numeral 1 denotes a reduction vessel storage area that is on standby when the reduction furnace 6 is full of 35 samples, 42 is an empty reduction vessel storage area, and 43 is a powderization unit that is on standby when the previous sample is being powdered in the rotary powdering machine 7. 44 is a storage space for empty vessels for powdering, 5 is a weighing machine for weighing samples transferred from each device, 5' is a balance plate, and y is a computer for feeding weighed samples into the vessel 2. , 6 is a reduction furnace that reduces the sample quantitatively sampled by the weighing machine 5, 7 is a rotary powdering machine that powderizes the sample weighed after reduction in this reduction furnace 6, and 8 is this rotary powderization machine. A sieve machine that sieves the powdered sample in step 7 according to each particle size, 8'
1 is the shutter 1 which places the sieved sample on the top plate 5', 9 is the Betssel special equipment section which receives the weighed sample, and 10 is the Betssel transfer machine 3 which transfers the reduced sample to the position P. , a top pin elevator 11 that transfers this sample to Shume 10', and a powdering machine 11 that transfers the weighed sample after reduction to the rotary powdering machine 7 when the Petssel transfer machine 3 has transferred it to the position ν. Machine elepeno, 12
13 is a flow rate control panel that controls the reducing gas; 13 is a temperature control panel that programmatically controls the three elements of reducing furnace 6 temperature control, reduction time, and reducing gas; 14 is a sequence control panel that automatically controls the entire weighing process; 15 is a manual operation panel, 16 is a central monitoring panel that displays operating status, failure status, etc., and 17 is a weighing data that is used to record weighing data, record the sample shop, and communicate with a computer installed outside this device. The control panel 18 is a rail for the Bethel transfer machine 3.

Next, the operation of the granular iron ore reduction powder test apparatus having the above configuration will be explained.

FIG. 4 is a diagram showing the main part of the present invention, and is a system diagram showing the movement of one sample and the movement of the vessel 2 as an example. The dotted line arrow indicates the movement of the sample without Vessel, the solid line arrow indicates the movement of the reducing Vessel 21, and the two-dot chain arrow indicates the movement of the powdering Vessel 22. First, the empty vessel for reduction 21 placed in the empty vessel storage area for reduction 42 is transferred to the vessel special equipment section 9 by the vessel transfer machine 3. Next, a new sample is supplied to the sample feeder 1, sent to the weigher 5, quantitatively sampled with a balance plate 5', and only the samples that pass the test are sent to the scanner. The waste is stored in the vessel and transferred to the reduction furnace 6 by the Bethel transfer machine 3, where it is reduced 4.

The sample reduced for a certain period of time is transferred to the top pin elevator 10 by the transfer device 3. When the transfer is completed, the transfer machine 3 moves to the pulverizer elevator 1'11, grasps the empty pulverization vessel 22 previously placed in the elevator 11, and transfers it to the vessel special equipment section 9, where it is kept on standby.

Thereupon, the top pin elevator 10 is operated, a sample of 10 kg is loaded, placed on the top pin plate 5', and weighed by the weighing mechanism 5. When the weighing is completed, the sample is loaded into the powdering vessel 22, which is on standby, is accommodated therein and is transferred to the powdering machine elevator 11!111 by the transfer device 3. When the transfer is completed, the elevator 11 is activated, and the sample is transferred to the rotary pulverizer 7, where it is pulverized for a certain period of time, and then passed through the sieve 8 to be sorted by particle size. It is weighed by the weighing machine 5. Each of these weighing data is sent to the weighing data control panel 11 and recorded together with the sample shop. The quality of the sample is inspected based on this weighed value. The above is the movement of one sample,
Since new samples are supplied one after another at regular intervals, the preceding sample and subsequent sample are repeated in each process of reduction, pulverization, and weighing.

In order to adjust this, two types of Bethels 21 and 22 are used and the Bethels 21 and 22 are overlapped in the Bethels storage areas 4 and 41 to 44,
22 is kept on standby and the Bessel transfer device 3 is operated to transfer the sample between the respective devices, thereby controlling the sample to flow smoothly. Although the features of the present invention are as described above, the configuration is not limited to the above and illustrated examples, and for example, the installation of an elevator or the like is not an essential requirement.

Since this invention is as explained above, the complicated weighing process when weighing using a single weighing machine can be easily carried out, the sample supply speed can be made much faster than before, and the test amount can be dramatically increased. , test time can be reduced.

In addition, since two types of Vessels are used, it is possible to prevent samples from falling out when transferring weighed samples after reduction, and the use of a Vessel with holes also makes it easier to clean the clogging. The present invention provides an excellent reduction/pulverization test device for granular iron ore, which does not require any additional steps.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of a test device for reduction and pulverization of granular iron ore, Fig. 2 is a plan view of the same device, Fig. 3 is a detailed view of Betussel, and Fig. Figure 4 illustrates the gist of this invention. 1... Sample input machine, 21... Vessel for reduction, 22
...Betssel for powdering, 3...Betssel transfer machine, 4,
41-44...Bethcell storage area, 5...Weighing machine, 6.
・Reduction furnace, 7... Rotary powdering machine, 8... Sieve machine, 9...
・Bethcell special equipment department, 10...Top pin elevator, 11
... Powdering machine elevator, 14... Sequence control panel, 17... Weighing data control panel.

Claims (1)

[Claims] 1 At least a reduction furnace for reducing the newly supplied granular iron ore sample, a powdering machine for pulverizing the reduced sample, and a machine for weighing the newly supplied sample and the reduced sample. Equipped with a weighing machine and a vessel transfer mechanism that transfers the vessel between the weighing machine and the reduction furnace and between the weighing machine and the pulverizer, each sample is weighed individually to test the quality of granular iron ore. In the apparatus, the vessel has a hole in the lower part for passing the reducing gas, and a reduction vessel for transferring between the weighing machine and the reduction furnace, and a reduction vessel that can accommodate the sample after reduction and transfer it to the powdering machine. A reduction powdering test device for granular iron ore, characterized by comprising a powdering vessel for granular iron ore.