Quantitative catalyst supply device
The present invention provides a quantitative catalyst supply device that supplies a predetermined amount of catalyst slurry through an injection port formed through a container bottom. The quantitative catalyst supply device includes: an extendible supply pipe connected to a hopper and filled with catalyst slurry; a head connected to the supply pipe and supplying catalyst slurry to the injection port at the container bottom; a cylinder connected to a side of the supply pipe and supplying a predetermined amount of catalyst slurry through the head; and valve units disposed in an upper portion and a lower portion of the supply pipe spaced from the cylinder and opened or closed by operation of the cylinder.
1. A quantitative catalyst supply device that supplies a predetermined amount of catalyst slurry through an injection port formed through a container bottom, the device comprising:
an extendible supply pipe connected to a hopper and filled with catalyst slurry;
a head connected to the supply pipe and supplying catalyst slurry to the injection port at the container bottom;
a cylinder connected to a side of the supply pipe and supplying a predetermined amount of catalyst slurry through the head; and
valve units disposed in an upper portion and a lower portion of the supply pipe spaced from the cylinder and opened or closed by operation of the cylinder,
wherein a hollow external pipe is coupled to a lower portion of the injection port at the container bottom, the head is disposed in the hollow external pipe, a support plate for supporting the head is formed in the hollow external pipe, and the head is sealed by sealing members between the hollow external pipe and the support plate,
wherein the head has:
a wide portion sealed with respect to the external pipe by a sealing member;
an inclined portion extending upward and inclined inward from the wide portion; and
a narrow portion vertically protruding upward from the inclined portion and sealed with respect to the injection port at the container bottom by a sealing member,
wherein the injection port at the container bottom has:
an inclined surface brought in surface contact with the inclined portion of the head; and
a vertical surface extending upward from the inclined surface and brought in surface contact with the narrow portion of the head, and
wherein the head seals the container by moving upward in the external pipe and by being fitted into the injection port at the container bottom.
2. The device of claim 1 , wherein the valve units include: a first valve body and a second valve body disposed at the upper and lower portions in the supply pipe spaced from the cylinder and moved up and down in the supply pipe by the cylinder; a first inlet and a second inlet formed under the first and second valve bodies and opened and closed by the first and second valve bodies; and
a first outlet and a second outlet formed over the first and second valve bodies, having a diameter larger than the diameters of the first and second valve bodies, and allowing catalyst slurry to flow when the cylinder is operated.