JP3615695B2 - Device for supplying powder material to high pressure vessel - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a test KyuSo location of the powder material into the high pressure vessel, in particular, liable powder material is oxidized to a novel improvement for providing while sealed by an inert gas.
[0002]
[Prior art]
Conventionally, upon supply while sealing the easily powdered material by oxidizing the high pressure vessel operating at high pressure, for that equipment be supplied quantitatively with near continuous supply state, conventionally, the apparatus shown in FIG. 2 It was adopted. That is, what is indicated by reference numeral 10 in FIG. 2 is a powder material supply device, which is a weight control feeder 20, a pressurized tank 30, and a high-pressure gas source of an inert gas such as argon gas / nitrogen gas. 16.
[0003]
The weight control feeder 20 is provided with a closing hopper 26 that can be sealed above, and the charging hopper 26 has a hopper portion 21 of the weight control feeder 20 through a first joint valve 47 and a buffer joint pipe 27 such as a bellows. Are connected in an airtight state. The weight control feeder 20 and the pressurized tank 30 disposed below the weight control feeder 20 are connected by a material discharge pipe 11. The material discharge pipe 11 is arranged vertically downward from the discharge port of the weight control feeder 20, protrudes from the top of the pressurized tank 30 to the inside thereof, and flaps at the protruding end so as to cover the opening 100 of the protruding end. A valve 46 is provided.
[0004]
The high-pressure gas source 16 is connected to the top of the pressurized tank 30 via a high-pressure gas supply pipe 12 provided with a second gate valve 42. Further, the pressurized tank 30 is connected to a gas outlet pipe 13 provided with a third gate valve 43 at the top and a first control valve 73 downstream thereof, to the atmosphere directly, or to the vent 17a and bag filter 18a. It is open to the atmosphere through. The bottom of the pressurized tank 30 is connected to the high pressure vessel 50 through the material supply pipe 14 provided with the fourth gate valve 44. Further, the high-pressure gas supply pipe 12 upstream of the second gate valve 42, that is, the high-pressure gas source 16 is connected to the material supply pipe 14 via the second high-pressure gas supply pipe 15 provided with a fifth gate valve 45. The fourth gate valve 44 is connected downstream.
[0005]
The high-pressure gas supply pipe 12 upstream of the second gate valve 42, that is, the high-pressure gas source 16, passes through the first seal gas pipe 61 provided with the second control valve 71, and the hopper portion 21 and the charging hopper 26. It is connected to. The hopper portion 21 and the charging hopper 26 are connected to a second seal gas pipe 62 provided with a third control valve 72, and the hopper portion 21 and the charging hopper 26 are communicated with each other directly to the atmosphere or to the vent 17b, the bug. It is open to the atmosphere via the filter 18b. Further, the hopper portion 21 and the material discharge pipe 11 are connected by a first pressure equalizing pipe 66. The valves from the second gate valve 42 to the seventh gate valve 47 are configured such that their opening and closing can be automatically controlled by a control device (not shown).
[0006]
In the apparatus for supplying a powder material to a high pressure vessel configured as described above, in order to supply a powder material that requires an anti-oxidation seal to the high pressure vessel, first, the second gate valve 42 The five gate valves 45 are all closed, the control valves 71, 72, 73 are set to predetermined values, and the inside of the hopper unit 21, the charging hopper 26 and the pressurized tank 30 is supplied from the high pressure gas source 16. Fill with inert gas.
[0007]
Next, the weight control feeder 20 is started in a state where the first gate valve 47 is opened and the powder raw material is charged into the hopper 21 of the weight control feeder 20 from the hopper 26 and then closed (first step). The material starts to be discharged into the material discharge pipe 11. The flap valve 46 is opened for a predetermined time and then closed (second step). By this operation, the powder material falls in the material discharge pipe 11 and is supplied to the pressurized tank 30, and is deposited from the bottom of the pressurized tank body 31 into the material supply pipe 14 upstream of the fourth gate valve 44. The
[0008]
Next, the second gate valve 42 and the fourth gate valve 44 are opened for a predetermined time and then closed (third step), whereby the high pressure gas source 16 and the high pressure gas supply pipe 12 are connected to the pressurized tank 30. Gas whose pressure is higher than the pressure in the high-pressure vessel 50 is supplied, and the powder material deposited in the material supply pipe 14 from the bottom of the pressurized tank 30 passes through the fourth gate valve 44 by the gas pressure. Then, it is extruded into the high pressure vessel 50 and pneumatically transported.
[0009]
Next, the fifth gate valve 45 is opened for a predetermined time and then closed (fourth step), whereby the high pressure vessel is transferred from the high pressure gas source 16 to the material supply pipe 14 via the second high pressure gas supply pipe 15. A gas whose pressure is higher than the pressure in the gas 50 is supplied, and the powder material remaining without being transported into the material supply pipe 14 is extruded into the high pressure vessel 50 by the pressure of the gas.
[0010]
In addition, the powder material is first charged into the charging hopper 26 and stored. The weight control feeder 20 is subjected to loss-in control, and when the storage amount in the hopper portion 21 decreases to a predetermined value or less, the first gate valve 47 is appropriately opened and closed to secure the storage amount in the hopper portion 21. Since the weight of the charging hopper 26 is blocked by the buffer joint pipe 27, the weight control feeder 20 can independently control the weight regardless of the weight change of the material charging hopper 26. Further, the pressure control of the weight control feeder 20 and the material charging hopper 26 is adjusted by the set values of the second seal gas pipe 62 and the third control valve 72, and the powder material is fed from the material charging hopper 26 to the weight control feeder. 20 is easily supplied. Furthermore, since the material discharge pipe 11 and the hopper portion 21 are connected by the first pressure equalizing pipe 66, the powder material is easily discharged and supplied from the weight control feeder 20 to the material discharge pipe 11.
[0011]
[Problems to be solved by the invention]
Since the test KyuSo location of the powder material to the conventional high pressure vessel is constructed as described above, the following problems were present.
(1) Since three control valves are provided to prevent oxidation of the powder material by the inert gas, the apparatus and the operation system are complicated.
(2) In the fifth step of closing the third gate valve and the first regulating valve after opening them for a predetermined time, the high pressure gas remaining in the pressurized tank is released, and the pressure in the pressurized tank is adjusted first. Although it is reduced to the set value of the valve, it is necessary to perform this operation instantaneously. For this purpose, a control valve that can open and close quickly with a large diameter is required, and it is difficult to reduce the size of the apparatus.
[0012]
The present invention has been made to solve the above-described problems, and in particular, the introduction hopper, the hopper, and the pressurized tank are communicated with the liquid in the seal pot through the pipe means, and the configuration is simplified. and to provide a test KyuSo location of the powder material into the pressure vessel.
[0013]
[Means for Solving the Problems]
An apparatus for supplying a powder material to a high pressure vessel according to the present invention includes an input hopper, a weight control feeder, and a pressure tank disposed below the hopper, a discharge port of the weight control feeder, and a top portion of the pressure tank. Are connected by a material discharge pipe, and a high pressure gas source is connected to the top of the pressurized tank via a high pressure gas supply pipe provided with a second gate valve, and a gas exhaust pipe provided with a third gate valve is provided. A second high-pressure gas supply in which the bottom of the pressurized tank and the high-pressure vessel are supplied by a material supply pipe provided with a fourth gate valve and a fifth gate valve is provided downstream of the fourth gate valve. The weight control feeder and the charging hopper are connected to the high pressure gas source via a first seal gas pipe provided with a second control valve, and the hopper portion of the weight control feeder is connected to the high pressure gas source via a pipe. And the material waste In the powder material supply apparatus in which the pipe is connected by the first pressure equalizing pipe, the second pressure equalizing pipe provided in the hopper portion, the third pressure equalizing pipe provided in the charging hopper, and a pressure tank are connected. The gas exhaust pipe is inserted into the liquid in the seal pot.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
It will be described in detail preferred embodiments of the test KyuSo location of the powder material into the high-pressure vessel according to the present invention with reference to the drawings. Note that the same or equivalent parts as in the conventional example will be described using the same reference numerals.
[0015]
In FIG. 1, what is indicated by reference numeral 10 is a powder material supply device. The supply device 10 includes a weight control feeder 20, a pressurized tank 30, and a high-pressure gas source 16 of an inert gas such as argon gas / nitrogen gas. And a seal pot 76 capable of storing liquid. The weight control feeder 20 has a sealing hopper 26 disposed above it, and is connected to the hopper portion 21 of the weight control feeder 20 through the first gate valve 47 and the buffer joint pipe 27 in an airtight state. . The weight control feeder 20 and the pressurized tank 30 disposed below the weight control feeder 20 are connected by a material discharge pipe 11. The material discharge pipe 11 is arranged vertically downward from the discharge port of the weight control feeder 20, protrudes from the top of the pressurized tank 30 to the inside thereof, and flaps to open and close the opening 100 at the protruding end. A valve 46 is provided.
[0016]
The high-pressure gas source 16 is connected to the top of the pressurization tank 30 via the high-pressure gas supply pipe 12 provided with the second gate valve 42, and the pressurization tank 30 has a third gate valve 43 at the top. A gas exhaust pipe 13 which is a provided pipe means is connected. The bottom of the pressurized tank 30 is connected to the high pressure vessel 50 through the material supply pipe 14 provided with the fourth gate valve 44. Further, the high-pressure gas supply pipe 12 upstream of the second gate valve 42, that is, the high-pressure gas source 16 is connected to the material supply pipe 14 via the second high-pressure gas supply pipe 15 provided with a fifth gate valve 45. It is connected to a position downstream of the fourth gate valve 44.
[0017]
The high-pressure gas supply pipe 12 upstream of the second gate valve 42, that is, the high-pressure gas source 16, passes through the first seal gas pipe 61 provided with the second control valve 71, and the hopper portion 21 and the charging hopper 26. It is connected to. The hopper portion 21 is connected to a second pressure equalizing pipe 67 as a pipe means, and the material charging hopper 26 is connected to a third pressure equalizing pipe 68 as a pipe means. The second pressure equalizing pipe 67, the third pressure equalizing pipe 68, and The other end of the gas exhaust pipe 13 is inserted into the liquid 77 of the seal pot 76. The seal pot 76 is an unsealed container capable of storing a liquid 77 having a predetermined depth, and the liquid 77 having a predetermined depth or more overflows to the outside. Further, the hopper portion 21 and the material discharge pipe 11 are connected by a first pressure equalizing pipe 66. The valves 42 to 47 are configured such that their opening and closing can be automatically controlled by a control device (not shown). In addition, by providing a plurality of leak outlets to the outside, the seal pressure can be easily adjusted by adjusting the depth by using a leak outlet having a depth corresponding to an appropriate seal pressure.
[0018]
In the apparatus for supplying powder material to the high-pressure vessel configured as described above, in order to supply the powder material that requires an anti-oxidation seal to the high-pressure vessel 50, first, the valves 42 to 46 are turned on. All the valves are opened, the second control valve 71 is set to a predetermined value, and the insertion depths L1, L2, and L3 of the second pressure equalizing pipe 67, the third pressure equalizing pipe 68 and the gas exhaust pipe 13 are adjusted, and the seal gas The pressure is adjusted, and the inside of the hopper unit 21, the charging hopper 26 and the pressurized tank 30 is filled with an inert gas supplied from the high-pressure gas source 16.
[0019]
Next, the weight control feeder 20 is activated (first step), and the discharge of the powder material to the material discharge pipe 11 is started. By opening and closing the flap valve 46 for a predetermined time (second step), the powder material falls in the material discharge pipe 11 and is supplied to the pressurized tank 30, and the fourth gate valve is supplied from the bottom of the pressurized tank body 31. 44 is deposited in the material supply pipe 14 downstream of 44.
[0020]
Further, by opening and closing the second gate valve 42 and the fourth gate valve 44 for a predetermined time (third step), the high pressure vessel 50 is transferred from the high pressure gas source 16 to the pressurized tank 30 via the high pressure gas supply pipe 12. An inert gas whose pressure is higher than the internal pressure is supplied, and the powder material deposited in the material supply pipe 14 from the bottom of the pressurized tank 30 passes through the fourth gate valve 44 due to the pressure of the gas and is high. Extruded into the pressure vessel 50 and pneumatically transported.
[0021]
Next, the pressure in the high pressure vessel 50 is switched from the high pressure gas source 16 to the material supply pipe 14 via the second high pressure gas supply pipe 15 by opening / closing the fifth gate valve 45 for a predetermined time (fourth step). Higher pressure inert gas is supplied. The powder material remaining without being transported into the material supply pipe 14 is extruded and supplied into the high pressure vessel 50 by the gas pressure.
[0022]
Next, the third gate valve 43 is opened and closed for a predetermined time (fifth step), so that the high-pressure inert gas remaining in the pressurized tank 30 passes through the gas exhaust pipe 13 into the liquid 77 of the seal pot 76. To be released instantly. Further, the internal pressure of the pressurized tank 30 is adjusted by the insertion depth L3 into the liquid 77 at the other end of the gas exhaust pipe 13. As a result, opening of the flap valve 46 is facilitated, and reverse injection from the pressurized tank 30 to the material exhaust pipe 11 does not occur when the flap valve 46 is opened.
[0023]
The powder material is first put into the feeding hopper 26 and stored. The weight control feeder 20 is controlled by a loss-in method, and when the storage amount in the hopper portion 21 decreases to a predetermined value or less, the first gate valve 47 is appropriately opened and closed to secure the storage amount in the hopper portion 21. Since the weight of the material charging hopper 26 is blocked by the buffer joint pipe 27, the weight control feeder 20 can independently control the weight regardless of the weight change of the charging hopper 26.
[0024]
In addition, the weight control feeder 20 and the charging hopper 26 are used to seal the inert gas sealed by the insertion depths L1 and L2 into the liquid 77 at the other end of the second pressure equalizing pipe 67 and the other end of the third pressure equalizing pipe 68. Since the pressure is adjusted in relation to each other, the powder material is easily supplied from the charging hopper 26 to the weight control feeder 20. Furthermore, since the material discharge pipe 11 and the hopper portion 21 are connected by the first pressure equalizing pipe 66, the powder material is easily discharged and supplied from the weight control feeder 20 to the material discharge pipe 11.
[0025]
As described above, the weight control feeder 20 is continuously operated in a fixed supply state, and the operations shown in the second step to the fifth step are repeated at short time intervals, so that the easily oxidizable powder material is sealed. The high pressure vessel 50 is continuously supplied. If the repetition is performed at short time intervals, the pneumatic transportation in the third step becomes insufficient, but it is supplemented by the fourth step to ensure the quantitative transportation property of the powder material.
[0026]
【The invention's effect】
Subjected KyuSo location of the powder material into the high-pressure vessel according to the present invention, since it is constructed as described above, it is possible to obtain the following effects.
(1) By adopting a seal pot, two sets of control valves, vents, and bag filters are not required, and the apparatus and the operation system are greatly simplified as compared with the conventional apparatus.
(2) By directly inserting the gas exhaust pipe from the third gate valve into the liquid in the seal pot, it becomes possible to release the high-pressure gas simply by opening the third gate valve having a small diameter. As a result, instant opening and closing operations can be easily performed, and a large-scale device including a large-diameter control valve is not required.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a powder material supply device to a high pressure vessel according to the present invention.
FIG. 2 is a configuration diagram showing a conventional powder material supply device to a high-pressure vessel.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Supply apparatus 11 Material discharge pipe 13 Gas exhaust pipe (pipe means)
14 Material supply pipe 16 High-pressure gas source 20 Weight control feeder 26 Input hopper 30 Pressurized tank 43 Third gate valve 61 First seal gas pipe 66 First pressure equalizing pipe 67 Second pressure equalizing pipe (pipe means)
68 Third pressure equalizing pipe (pipe means)
71 Second control valve 76 Seal pot 77 Liquid

Claims (1)

The feeding hopper (26), the weight control feeder (20), and a pressurized tank (30) disposed below the charging hopper (26), a discharge port of the weight control feeder (20) and a top of the pressurized tank (30) Are connected by a material discharge pipe (11), and a high pressure gas source (16) is connected to the top of the pressurized tank (30) through a high pressure gas supply pipe (12) provided with a second gate valve (42). In addition, a gas exhaust pipe (13) provided with a third gate valve (43) is connected, and the bottom of the pressurized tank (30) and the high pressure vessel (50) provide a fourth gate valve (44). The high pressure gas source (14) is supplied to the downstream of the fourth gate valve (44) via a second high pressure gas supply pipe (15) provided with a fifth gate valve (45). 16), and the weight control feeder (20) and the charging hopper (26) are connected to the high pressure gas source (16) through a first seal gas pipe (61) provided with a second control valve (71). The weight control feeder (20) In a powder material supply apparatus in which a hopper (21) and the material discharge pipe (11) are connected by a first pressure equalizing pipe (66), a second pressure equalizing pipe ( 67), a third pressure equalizing pipe (68) provided in the charging hopper (26) and a gas exhaust pipe (13) connected to the pressurized tank (30) enter the liquid (77) of the seal pot (76). An apparatus for supplying a powder material to a high pressure vessel, wherein the apparatus is inserted.

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