JPS6227216Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for collecting catalyst slurry in which giant catalyst particles having a certain particle size or more are mixed, which causes clogging of pumps, valves, etc. during fluid transfer.

Normally, when producing catalyst slurry, it is difficult to accurately control the particle size distribution of catalyst particles.
It is inevitable that giant catalyst particles are mixed in the slurry.

Therefore, after producing the catalyst slurry, it is necessary to remove giant catalyst particles of a certain particle size or more that cause clogging from the slurry by some means, and then collect the slurry.

However, it is not preferable to remove giant catalyst particles having a certain particle size or more using a Y-type strainer or the like disposed in a line during catalyst slurry transfer, which has been conventionally done.

This is because some catalysts may undergo oxidation or other deterioration when exposed to air, or even ignite in extreme cases, and particles of catalyst in slurry tend to stick to each other, so strainers in transfer lines, etc. If the strainer becomes clogged with catalyst particles, it is difficult to backwash or disassemble and clean the strainer.
Furthermore, it is difficult to dispose of the washing liquid, so a strainer or the like cannot be used.

In view of the above-mentioned circumstances, the present invention is designed to constantly and smoothly transfer catalyst slurry from which catalyst particles larger than a certain particle size, which can cause clogging and decrease in flow rate and flow pressure, are removed during flow transfer of catalyst slurry. It is intended for collecting.

That is, the present invention is for producing catalyst slurry.
Alternatively, a suction pipe surrounded by a sieve surface of an appropriate mesh size is installed in a tank that is stirred by a stirring blade to prevent precipitation of catalyst particles in the slurry, and the catalyst slurry is sucked through the suction pipe. We decided to collect
At this time, the suction pipe is placed close to the stirring blade so that the sieve surface is cleaned by the stirring flow from the stirring blade.Catalyst slurry that deteriorates or ignites when it comes into contact with air. This is a sampling device.

Next, the present invention will be explained with reference to embodiments shown in the drawings.

A stirring blade 2 driven by a motor 8 is installed inside the catalyst slurry tank 1 to stir the catalyst slurry.

The catalyst slurry is sampled by pump 6 through valve 7 through catalyst slurry suction sample tube 5 .

At this time, since the sampling port 4 of the suction sampling tube 5 is surrounded by the sieve surface 3 of a suitable mesh, the giant catalyst particles are removed here, that is, the giant catalyst particles are removed inside the suction sampling tube 5. Since it does not enter, the pump 6 and valve 7 are not clogged.

In addition, since the sampling port 4 surrounded by the sieve surface 3 is arranged close to the stirring blade 2, the stirring flow caused by the stirring blade always spreads the catalyst slurry on average over the entire surface of the sieve surface. It will be washed with liquid.

As a result, catalyst particles do not accumulate or stick to the sieve surface and do not cause clogging, so catalyst slurry can be collected smoothly at all times even during long-term use, and the collection device can be disassembled and cleaned. There is no need for
Furthermore, even if the sieve surface becomes clogged, the backwashing liquid is immediately stored in the catalyst slurry tank 1, where it can be deactivated and exposed to air. This is advantageous for collecting catalyst slurry, which can be dangerous.

In addition, the position indicated by the word "proximate" in the present application refers to a position where the entire surface of the sieve surface 3 can be evenly cleaned by the stirring flow of the stirring blades 2.

[Brief explanation of the drawing]

The figure is a sectional view of a catalyst slurry tank 1 equipped with the present invention. 1: Catalyst slurry tank, 2: Stirring blade, 3: Sieve surface, 4: Sampling port of suction sampling tube, 5: Suction sampling tube,
6: Pump, 7: Valve, 8: Motor.

Claims (1)

[Scope of utility model claims] Stirring is carried out by arranging the collection port 4 of the catalyst slurry suction collection tube surrounded by the sieve surface 3 in close proximity to the stirring blade in the catalyst slurry tank 1 having the stirring blade 2 and the catalyst slurry suction collection pipe 5. A device for collecting slurry of a catalyst that deteriorates or ignites when it comes into contact with air, characterized in that a sieve surface 3 is cleaned by a stirring flow generated by blades 2.