JPS59143938A - Automatic grain-size-distribution measuring apparatus - Google Patents

Abstract

PURPOSE:To measure the grain-size distribution of crushed material automatically and to perform measurement without stopping the operation of a crusher and the like, by periodically sampling crushed material, sieving the raw material by a vibrating sieve, guiding the sieved raw material having different diameters of the grains into separate measuring means, measuring the material, operating the result by an operating device, and displaying or recording the result. CONSTITUTION:Raw material sieved by a vibrating sieve 9 is guided to a measuring container 13 through chutes 12 in accordance with the diameters of the grains. When the raw material is sampled for a specified time period, samplers 3 automatically drives a motor 7, the material leaves from the lower side of a crusher 1, and the sampling is finished. As soon as the sampling is finished, measurement is started. The raw material in the measuring containers is emptied one by one, and the measurement is performed sequentially until all the measuring containers are emptied. The result of the measurement is guided to an operating device 19 through a converter 18. The passing rate for each grain size is computed and displayed on a display 19a and printed by a printer 20. Then a grain-size-distribution curve and the like are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an automatic particle size distribution measuring device, which further improves the particle size distribution of powdered products and periodically reassembles the kneaded dough into each particle size range. It automatically sorts the particles, measures their weight, determines the amount of particles that have passed through the sieve of each grain size, and displays them on a display gray. This relates to the constructed automatic particle size distribution measuring device.

Hereinafter, the present invention will be explained in detail based on one embodiment shown in the drawings.

FIG. 1 illustrates one embodiment of the present invention. In this figure, there is a belt conveyor 2 which is indicated by numeral 1 and runs in the angular direction (as seen in the paper) on the F side of this crusher 1. There is.

On the other hand, a sampler 3 is movably provided between the crusher 1 and the bell 1 to the conveyor 2. A guide bar 5 guided by a sampler 3 (having a structure that runs 11 in a direction perpendicular to the belt conveyor 2, and guided by a kite roller 4)
Fixed. A droplet weight 6 is suspended from one end of the guide bar 5 (1d3), and the other end of the guide bar 5 is wound around a boob fixed to the output 1lII11 of the motor 7 (=
I(J)

Therefore, by driving the motor 7 and winding up the wire 8 connecting between the guide bar 5 and the guide bar 5, the sampler 3 and the guide bar 5 are moved from d3 to 1hI in FIG.
It can be taken out from between the crusher 1 and the belt conveyor 72. Then, with the seventh part 7 free, the weight of the weight 6 is changed to the crusher 3;
It depends on where you place it between the belt and the conveyor 2.

A vibrating sieve 9 formed in multiple stages is disposed below the sampler 3. This vibrating sieve 9 has sieves each having a mesh arranged inside it in multiple stages, and is used for processing. A vibration machine 10 applies vibrations at a predetermined frequency.

The vibrating screen 9 is held by a spring 11.

Shoes 1 to 12, 12... are provided at positions corresponding to the sieves in each stage of the vibrating sieve 9, and each
12.12... At the bottom is a 4-volume container 13.13...
- They are arranged in a one-to-one correspondence.

14 (in the embodiment, a total of 1B containers 13 are held by a common support frame 14, and each support frame 17'l is supported by a II-1-hole 155).

Each of the 61m containers 13 has 1]1 output device 16.16
..., and in order to operate these, open the lower end of the hanging container 13 and remove the cutting container 13.
The sieved raw material can be dropped onto a discharge bell 1 to a conveyor 17 disposed below. on the other hand,
The output of each load cell 15 is input to an arithmetic unit 19 via a converter 18. One performance device is one display.
9a and a printer 20.

With this printer 20, particle size distribution curves are
can do.

Next, the operation of this embodiment configured as above will be explained.

In the normal crushing process δ3, the rambra 3 is located away from the bottom of the crusher 1, and the crushed raw material is delivered to the bell 1.
- Dropped onto the conveyor 172 and transported.

Then, at predetermined time intervals, the motor 7 becomes free, and the weight of the weight 6 moves the sampler 3 to the r
It receives the raw material that is pulled out to the side and thrown into the first corner of the crusher, and supplies it to the vibrating sieve 9.

Vibrating sieve 9 - C sieve (pulled)
, through shoes 1 to 12 according to their respective particle sizes.
1 container 13.

When the space 1 is rimmed, the sampler 3 automatically drives the motor 7 to move from the bottom of the crusher 1, and the rimbling ends.

At the same time as the ringbung ends, the 8l-fft begins. In the case of the embodiment shown in FIG. 1, the weighing is carried out by first combining the weighing containers 13 to form one total i1+! 1 unit] - 4 units by the door 15. Soshiζ−1
After all hands IY) are measured δ1, multiple gi, f
The fi container 13 is opened one by one from either side, and the container side is performed by emptying the 1 jri material inside.
Finally, with the lid of the 111 hanging container empty, δ11
B is row 4I: 4 are placed.

While emptying the raw material I in each IB container one by one, the training is repeated until all the IF units are empty.

The ij'l'm result is led to the arithmetic unit 19 via the Ij converter 18, where the passing rate of each material is extracted and displayed on the display 19a, as well as printed by the printer 20. 1 to create a particle size distribution curve, etc.

Since this embodiment is configured as described above, rimbling can be performed periodically without stopping the operation of the crusher, and the particle size distribution can be automatically displayed and recorded.

-15, FIG. 2 illustrates an embodiment of the illumination of the present invention. In this embodiment, δ3 is the same as the embodiment shown in FIG.

By adopting such a structure, it is possible to simultaneously carry out quick measurements of raw materials with different particle sizes introduced into each of the 81 hanging containers 13 without sequentially emptying the skewer containers 13 and performing Hf fJ. .

FIG. 3 illustrates yet another embodiment of the present invention. In this example, raw materials with different particle sizes were introduced through the vibrating chute 12 and the sea urchin A
723 and suspended continuously. The weighed result is sent to the arithmetic unit 191 via the converter 18. The image is displayed on the display 19a and printed by the printer 20.

In this embodiment, a multi-point record δ124 is connected to the arithmetic unit 18, and i
Record JE & Jru deletions.

If such a structure is adopted, the particle size distribution will automatically change to h1.
In addition to being able to measure h1 at each moment using the multi-point recorder 24,
You can record your results.

As is clear from the above description, according to the present invention, the pulverized material is periodically sampled, the raw material is sieved with a vibrating sieve, and the sieved raw materials of the particle size are separated from each other. The particle size distribution of the pulverized raw material can be automatically measured because it can be guided to a measuring means, measured, determined by a computing device, and displayed or recorded.・In this case, it is possible to carry out measurements without interrupting the operation of the crusher, etc.

[Brief explanation of drawings]

1 to 3 are schematic diagrams illustrating different embodiments of the invention. 1... Crusher, 2.17.22... Bell 1 to conveyor, 3... Zambra, 4... Guide roller, 5...
・Guide bar, 6... To soil 1, 7... Motor, 8... Wire A7.9... Vibrating sieve, 10... Vibrator, 11... Spring, 12 ... Shoe 1~. 13...
・IT ff & container, 14... Support frame, 15... Load cell, 16... Ejection device, 18... Converter, 1
9...Arithmetic device, 20...Printer, 23...Uni A7.24...Multi-point record S1゜Patent applicant Ube Industries, Ltd. Kanaishi Fig. 1 1'7 Fig. 2 3 Shi01'1 - Figure 3 24 19a

Claims (1)

[Claims] A sampler that periodically samples crushed IrAl'l, a vibrating sieve that sieves the raw material supplied from this sampler in each particle size range, and a measurement that measures the weight of the sieved raw material. 1. An automatic particle size distribution measuring device, characterized in that the device is equipped with a calculation device for calculating measurement results, a display/capture for displaying the calculation results, and a printer for printing the calculation results.