TWI428934B - Powder substance sediment collective drum apparatus and method thereof - Google Patents

Description

Precipitable powder substance collecting tank and using method thereof

The invention relates to a pulverized or high-radio-contaminated precipitable powder substance collecting tank dispersed in a liquid and a using method thereof, in particular to a method for effectively collecting the bottom-fillable powder substance collecting tank of the powder filling amount in the collecting tank.

When the manufacturing plant or nuclear energy industry processes the production process and wastes, it will produce powder or dust that is toxic or has a high risk of radiation. If it is placed in the storage space for a long time and exposed to the atmosphere, it will be harmful to the human body and pollute the environment. It must be stored under water or in a liquid to reduce the harm to the environment. When the cleaning or storage operation is carried out, the harmful powder at the bottom of the pool must be collected or taken out. If the powder is taken out and other subsequent treatments are carried out, the operation restriction and difficulty are relatively increased. Therefore, the powder collection method must be operated under the liquid level of the pool. The transportation and operation after removal must also be carried out with considerable care to avoid the worker being exposed to toxic powders or handling radioactive materials and accumulating excessive radiation dose.

Powders or dusts that are toxic or have a high risk of radiation are extremely harmful to the human body. In order to prevent workers from inhaling toxic powders or handling high-radiation powders, excessive radiation dose must be stored under water or in a liquid to reduce Harm to people and the environment. The powder collection method must also be operated by subsurface operation, and it is even more difficult for the operator to directly pour the powder into the powder tank in the air.

When the operation is completed under the liquid surface to complete the powder collection operation, the powder collection tank is filled with powdered mud containing a large amount of water. When the powder collection tank is lifted off the water surface and drained by the bottom filter, the volume of the powdered mud in the tank is reduced and settled to form a powder cake. Usually, the powder block after draining accounts for only half or less of the contents of the can, and the space inside the powder can is not effectively utilized, which increases the difficulty in transportation and storage. This improvement method is an important issue to be considered. In view of the above-mentioned shortcomings of the use of the underwater powder collecting tank, the inventors have studied the improvement of these shortcomings, and finally the present invention has been produced.

The main object of the present invention is to provide a new precipitable powder substance collecting tank and a method for using the same, which are required to perform powder collecting operation in water or other liquid, the powder itself and the liquid are not soluble and the specific gravity is greater than the liquid. In order to cooperate with the powder collection operation in water, a powder sedimentation bag is set, and a new invention powder collection tank is joined to the bottom of the sedimentation bag. The design of the new powder collection tank is that the old powder collection tank can fully fill up more powder mud, which effectively increases the powder mud filling amount of the powder collection tank, and effectively relative to the same required powder collection amount. Reduce the number of powder cans and the overall storage volume for future transportation and subsequent temporary storage. The method is extremely simple, and it does not require excessive expenditure, which can effectively reduce the operation cost, and the harm of the toxic and radioactive powder to the worker can also be within the control range.

In order to achieve the above purposes and effects, the technical means adopted include: the powder sedimentation bag provided is not separated from the pool water, and a new two-stage powder collection tank is joined to the bottom of the sedimentation bag. The powder at the bottom of the pool is sucked into the sedimentation bag by sewage pumping, so that the powder is settled in the sedimentation bag over a period of time and concentrated in the lower powder collection tank. The pool water in the sedimentation bag is then taken out of the sedimentation bag. Repeat this powder precipitation operation, confirm that the powder collection tank is fully filled with powdered mud, then lift the powder collection tank, and remove the powdered powder collection tank from the water surface through the barrier shield. The newly invented powder collection tank is designed to be divided into a powder collection tank body, a removable movable powder collection tank and a powder collection tank cover, wherein a filter screen is arranged at the bottom of the collection tank body to filter the moisture of the powder mud. The new powder collection tank design concept is divided into two sections, including the upper half of the removable movable collection tank, the lower half of the powder collection tank body and the tank lid, the upper half of the removable movable collection tank and the powder collection tank The body joint design is a rotary snap-fit type, and the powder collection can lid and the powder collection tank body joint are also designed to be rotationally fastened, which are convenient for quick removal.

The invention can be applied to the paste powder sludge containing a large amount of water during the collection operation, and the volume of the powder mud is reduced and settled to the lower part of the powder collection tank to form a powder block after the water is drained from the water surface, and the powder is not removed. After the upper half of the empty can, the lower half of the powder can body fully fills the powder block and increases the effective volume ratio. The use of the designed two-stage new powder tank can fully fill more powdered mud in the operation of the powder can, and increase the volumetric efficiency to reduce the waste of space that cannot be filled in the tank. The use of a new powder can reduces the total number of powder cans at the same total amount of powder. The new powder tank has also been designed with tank lids to increase the safety of shipping operations and future storage management.

The present invention is a preferred embodiment of the present invention. The first embodiment is an operational flow of the present invention. Referring to the overall schematic diagram of the second figure, it can be clearly seen that the steps of the present invention include at least: Step 1 The powder-containing pool water is pumped into the sedimentation bag", the step 2 "the powder in the sedimentation bag is precipitated in the powder collection tank", the step 3 "extracting the sewage from the sedimentation bag into the pool water", and the step 4 "screening through the barrier" Pull up the powder collection tank in the sedimentation bag, Step 5 "Drop dry powder collection tank to make the powder muddy", Step 6 "Remove the upper half of the powder collection tank", Step 7 "Cap the powder collection tank a can lid to complete the powder collection tank powder collection operation; wherein step 1 "pumping the bottom of the pool containing the powder pool water into the sedimentation bag" is to use the water monitoring device at the bottom of the pool to manually hold the long rod at the pool side, The bottom end of the long rod is fixed to the suction end hose 21 of the sewage pump 2, and then connected to the suction port 22, and moves around the bottom of the pool to suck the water containing the powder. When the bottom powder of the pool is subjected to the suction operation, the water containing the powder is simultaneously delivered to the powder sedimentation bag 15 by the sewage pump 2, and the top of the powder sedimentation bag 15 is higher than the horizontal plane to isolate the water inside and outside the sedimentation bag; The powder in the sedimentation bag is precipitated in the powder collection tank. When the pool water is pumped into the powder sedimentation bag 15 at the full water level, the sewage pump 2 is closed, and the powder in the powder sedimentation bag 15 is completely precipitated in the powder collection. In the tank, the time is about three days; in step 3, “the sewage in the sedimentation bag is pumped out to the pool water”, after the completion of the previous step, the sewage in the powder sedimentation bag 15 is taken out by the submersible pump 3 and discharged to the outside of the sedimentation bag 15 In the pool water, if the powder collection tank 1 is not filled with powdered sludge, the powder sewage inhalation operation is continued; Step 4 "Pulling the powder collection tank from the sedimentation bag through the barrier shield" is determined by the water monitoring device to determine the powder collection tank 1 When the powder reaches the full position, the powder collection tank 1 is pulled out of the water surface by the steel cord 4 through the shielding barrier; Step 5 "Drip the powder to collect the moisture of the tank to make the powder muddy. The water in the powder collection tank 1 is dripped out from the tank bottom filter 13, so that the volume of the original powder sludge in the powder tank is reduced by more than half, and the powder is in the form of a powder block; Step 6 "Removing the upper half of the powder collection tank The upper half of the cross-bar of the powder collecting tank 1 is fixed by a tool, and the removable movable collecting tank 12 of the upper half of the emptying is simply and quickly removed, so that the upper collecting tank 12 of the powder collecting tank 1 and the collecting tank body of the lower half are collected. 11 Separation; Step 7 "Cap lid of the powder collection tank" is a tool to cover the powder collection tank with the powder collection tank top cover 14.

In summary, the precipitable powder material collection tank and the method of using the same can achieve the functions of simplifying the operation procedure and improving the efficiency of the collection operation, and is a novel and progressive invention. The above description is only for the preferred embodiment of the present invention, and any changes, modifications, alterations or equivalent substitutions of the technical means and scope of the present invention should also fall within the scope of the present invention. Within the scope of the patent application.

1. . . Powder collection tank

11. . . Powder collection tank body

111. . . Quick joint sheath

12. . . Detachable activity collection tank

13. . . Tank bottom filter

14. . . Powder collection tank top cover

15. . . Powder sedimentation bag

2. . . Sewage pump

twenty one. . . Suction hose

twenty two. . . suction point

3. . . Submersible pump

31. . . Drain hose

4. . . Steel cable

5. . . Float

The first figure is a flow chart of the operation of the present invention.

The second drawing is an overall schematic view of the invention.

The third figure is a combination of the body and the upper half of the powder collecting tank of the present invention.

The fourth figure is a combination of the powder collecting tank body and the can lid of the present invention.

The fifth figure is a schematic diagram of the quick disassembly assembly of the powder collection tank of the present invention.

Claims (2)

A method for using a precipitable powder material collection tank, the method comprising the steps of: at least: pumping the water in the bottom of the pool to the sedimentation bag; and step 2: depositing the powder in the sedimentation bag into the powder collection tank; The sewage in the sedimentation bag is pumped out to the pool water; Step 4: Pulling the powder collection tank from the sedimentation bag through the shield; Step 5: dripping the powder to collect the water in the tank to make the powder mud-like; Step 6: Removing the powder collection tank Half empty canister; Step 7: Cover the can of the powder collection canister. A precipitable powder material collecting tank comprises at least one collecting tank body, a removable movable tank and a can lid, wherein a tank bottom of the collecting tank body is provided with a sieve, a removable movable tank and a collecting tank body joint design In the case of the rotary snap-fit type, the can lid and the collecting can body are also engaged in a rotary snap fit.