JPH11262651A - Catalyst withdrawal separator, and method for withdrawing catalyst in reactor using the separator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To effectively separate a catalyst withdrawn from a reactor from air, to automatically discharge it to a housing body and to enable continuous operation. SOLUTION: This separator 10 stores a catalyst sucked from a reactor by a vacuum sucking device. And it is provided with a tank body 11 for storing the catalyst, a cover member 13 provided on the tank body 11 so that it can be freely opened and closed, a weight 18 for automatically opening and closing the cover member 13, and an opening valve 33 for adjusting pressure in the tank body 11 to open the cover member 13. Consequently, when the catalyst from the reactor accumulates by the prescribed quantity, it is automatically discharged by cooperation of the weight and the opening valve to enable continuous operation and to enable improving efficiency of catalyst withdrawal work.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a catalyst extracting separator used for extracting a catalyst having deteriorated activity in a reactor used in, for example, an oil refining plant,
And a method for extracting a catalyst in a reactor using the catalyst extraction separator.

[0002]

BACKGROUND ART In petroleum refining plants and chemical plants,
Various catalysts have been used to promote chemical reactions. This catalyst is used by filling the inside of a reactor through which the raw material fluid flows. Such a catalyst is
Decrease in activity due to poisoning based on the deposition of carbides, metals, etc.
It is necessary to take out from the reactor for crushing due to a decrease in mechanical strength and for repair or inspection of equipment. This catalyst removal operation must be performed so as to shorten the construction period because it is necessary to minimize the plant outage period.

[0003] Further, most of the used catalysts are in a reducing atmosphere, and when they are opened to the atmosphere for catalyst replacement, carbides, sulfur and the like adhering during use of the catalyst generate heat due to oxidation of the catalyst. There is a possibility, and it is necessary to perform an appropriate extraction work while preventing the adverse effects on the human body under various adverse conditions, and the influence of the dust of the catalyst on the human body. Also, in large reactors,
In some cases, nitrogen gas is supplied into the reactor in order to prevent ignition or the like due to oxidation of the catalyst, and the operation is performed in a nitrogen gas atmosphere.

Conventionally, as a method of extracting a catalyst from a reactor, an operator first opens a catalyst extraction port of the reactor, checks whether or not the internal catalyst can be extracted, and is provided at a lower portion of the reactor. When the catalyst can be extracted from the catalyst extraction port, there is a type that extracts it from there, and when the catalyst is solidified and cannot be extracted from the catalyst extraction port, the type that vacuum is extracted from the top manhole of the reactor is known. ing.

[0005] In this vacuum extraction type, prior to the vacuum extraction operation, after the reactant such as heavy oil is extracted, the solidified catalyst is driven by a scoop or the like, and particularly when hard, is driven by air, hydraulic pressure or the like. Grind using a pick or the like. Then, the powdered catalyst is pulverized,
For example, the vacuum suction hose sucks in from the manhole side and discharges it to a hopper or the like. Further, the hopper of the separator is provided with a slidable lid member at a lower portion thereof, and when the catalyst reaches a predetermined amount inside the hopper, an operator slides the lid member to open and is disposed below the hopper. The catalyst is discharged into containers such as container packs.

[0006]

By the way, although the catalyst in the reactor is in a solidified state, when it is opened to the atmosphere, carbides and the like adhering to the catalyst may oxidize and generate heat. And work becomes difficult. Further, since the work may be performed in a nitrogen gas atmosphere, the work in the reactor becomes difficult. Therefore, it takes a lot of time to extract the catalyst from the reactor, and the operation efficiency is poor.
This is the cause of prolonged plant downtime. In addition, in the conventional catalyst withdrawal type of the reactor, the catalyst withdrawal port must be opened first to check whether or not the catalyst can be discharged from it, and if not, the setup must be changed and the withdrawal work must be performed from the upper manhole. , It is troublesome twice and inefficient.

Further, in the conventional separator, every time a predetermined amount of the catalyst is stored in the separator, the operator slides the lid member to open and discharges the internal catalyst to a container pack or the like, so that the pool is accumulated. Each time you have to go to a position with a separator. Then, after the lid member is opened and discharged by sliding, etc., it must be closed and fixed so as not to move so that the catalyst can be stored,
There is a problem that it is troublesome, the work efficiency is poor, and continuous operation is difficult.

[0008] It is an object of the present invention to provide a catalyst extracting separator capable of efficiently separating a catalyst extracted from a reactor from air and automatically discharging the air to a container, thereby enabling continuous operation. .

Another object of the present invention is to provide a method for extracting a catalyst from a reactor using a catalyst extracting separator which can easily and quickly extract a catalyst and improve the operation efficiency. To provide.

[0010]

According to a first aspect of the present invention, there is provided a separator for extracting a catalyst, comprising: forming a film for preventing oxidation on a reactor and a catalyst in the reactor; And a vacuum suction device for sucking the powdered catalyst while pulverizing the powdered catalyst to separate the powdered catalyst from the air. A catalyst extraction separator for sucking only the catalyst into the vacuum suction device, and a tank body for storing the catalyst therein, and the tank body is provided to be openable and closable, and when opened, the catalyst in the tank body is discharged. A cover member that is capable of storing a catalyst in the tank body when closed, and provided on the tank body, and when the catalyst in the tank body reaches a predetermined amount, opens the cover member and discharges the catalyst; After discharge Automatic opening and closing means for automatically closing the lid member, provided in the tank main body, adjusting the pressure in the tank main body, and when the internal catalyst reaches a predetermined amount, changes the pressure in the tank main body from a negative pressure state. And a pressure adjusting means for opening the cover member to open.

In the above description, the vacuum suction device may be a vacuum pump installed on the ground outside the reactor, but it is preferable to use a vacuum car. Further, the separator may be disposed between the reactor and the vacuum suction device. For example, a gantry may be provided and attached to it, or it may be attached to a carrier such as a dump truck by a crane or the like so that the discharged catalyst can be immediately transported. Alternatively, it may be mounted on a gantry and discharged directly from there to the ground. Further, it is preferable that the lid member is formed of one sheet and is opened and closed on one side, but may be of a type that is opened and closed on both sides like a double door or a clamshell of a construction machine.
The automatic opening / closing means preferably uses a weight. However, the lid member is always urged in a closing direction by using a spring or the like, and when a predetermined weight is reached, the lid is opposed to the spring urging. It is good also as a form which opens a member. Further, as the pressure adjusting means, any type can be used as long as the pressure in the tank body can be released from the negative pressure state, and for example, an opening valve is preferably used.

In the present invention, when the powdery catalyst extracted from the reactor by vacuum suction is separated from the air in the tank body and accumulates in a predetermined amount, the automatic opening / closing means and the pressure adjusting means are used. Automatically discharged in cooperation with the means. Therefore, continuous operation becomes possible, and the efficiency of the catalyst removal operation of the reactor is improved.

According to a second aspect of the present invention, there is provided a catalyst separator, wherein the automatic opening / closing means of the first catalyst extracting separator is provided on a tank body via a bracket and is connected to the lid member. A rotatable support shaft, and a weight member provided on the support shaft on a side opposite to the lid member and capable of rotating the lid member upward in normal times. It is.

In the above description, it is preferable that the weight of the weight member corresponds to the size of the tank body, that is, the weight of the catalyst stored therein. If there is, its shape does not matter. In the present invention, since a weight member having a predetermined weight may be provided, the structure is simple, and the production and mounting work is reduced.

According to a third aspect of the present invention, there is provided a catalyst separator in which the pressure adjusting means in the catalyst extracting separator according to the first or second aspect is provided in the middle of the vacuum suction path in the tank body. The vacuum suction path is configured to include an opening valve for sending atmospheric air, and the opening valve is characterized by being opened and closed by a cylinder set with a timer.

In the present invention, since the release valve is opened and closed by the cylinder set by the timer, the opening of the valve is controlled according to the size of the tank body or the speed of the accumulation of the catalyst according to the magnitude of the suction force. What is necessary is just to change a timer setting, and it can respond flexibly to various conditions.

According to a fourth aspect of the present invention, there is provided a method for extracting a catalyst from a reactor using the separator for extracting a catalyst according to the fourth aspect of the present invention. It is a method of extracting the catalyst in, wherein an antioxidant film is formed on the catalyst in the reactor,
The catalyst on which the film is formed is pulverized into powder, and the powder catalyst is sucked by a vacuum suction device, and the powder catalyst sucked by the vacuum suction device is supplied to the reactor. Into the separator for extracting catalyst, which is disposed between the separator and the vacuum suction device. The catalyst for extracting catalyst is separated from air by the separator for extracting catalyst. The member is opened and closed, the catalyst in the tank body of the catalyst extraction separator is continuously discharged, and only the air is suctioned by the vacuum suction device.

In the present invention, since the catalyst is extracted after forming the oxidation preventing film on the catalyst in the reactor, the operation is performed in an air atmosphere. In addition, since the continuous vacuum method is performed while the outside air is flowing, cooling of the high-temperature catalyst (for example, 40 to 200 ° C.) is performed, so that the operation at a high temperature can be excluded. Therefore,
The operation of extracting the catalyst can be performed easily and in a short time, so that the operation efficiency can be improved.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the catalyst extraction separator 10 of the present embodiment is installed on the ground outside the reactor 1. In addition, a vacuum car 2 as a vacuum suction device is disposed near the separator 10, and the catalyst (hereinafter simply referred to as “catalyst”) in the reactor 1 is pulverized into one powder from the manhole 1A. Can be sucked by the vacuum suction hose 3 into which the air is inserted. This vacuum suction hose 3 is a first suction hose 3 from the inside of the reactor 1 to the separator 10.
A and the second from the separator 10 to the vacuum car 2
And the suction hose 3B.

The reactor 1 has a two-layer structure of an upper bed and a lower bed with a partition plate 1C interposed therebetween, and the manhole 1A is provided at the upper part, and the catalyst outlet 1B is provided at the lower part. Further, when the catalyst inside the reactor 1 is removed during the operation of extracting the catalyst from the reactor 1, the manhole 1A is used to form an antioxidant film on the solidified catalyst.
Then, oil or chemicals are injected from the pump, and then a pressure guiding hose 7 for an air pick for crushing the solidified catalyst is inserted.

The separator 10 according to the present embodiment performs a process of separating the catalyst sucked by the vacuum car 2 from air and capturing the air, and discharging the catalyst to the hopper 4. Separator 10
Is mounted on an upper part of a gantry 5 assembled in, for example, a tower shape. A hopper 5 is provided below the separator 10, and a container back 6 as a catalyst housing is replaceably mounted below the hopper 5.

As shown in detail in FIGS. 2 to 4, the separator 10 has a tank body 11.
It is formed to include a cylindrical upper tank 11A having an upper lid 11C and having a predetermined outer diameter, and a cylindrical lower tank 11B which becomes thinner downward. The lower end of the lower tank 11A of the tank body 11 is a catalyst outlet A for discharging the catalyst, and a flange 12 is provided on the outer periphery of the lower end.

The lower tank 11B of the tank body 11 has
A lid member 13 that can be opened and closed in the vertical direction and that covers the lower surface of the flange 12 is provided. The lid member 13 is attached to a horizontal support shaft 15 via two reinforcing members 14 provided on the back surface thereof.
It is rotatably supported by a bracket 16 attached downward to the lower tank 11B of the tank body 11.

At both ends of the support shaft 15, the support shaft 15
Mounting plate 17 extending to the opposite side of lid member 13 with
Are provided, and between one ends of these mounting plates 17 are provided.
A columnar weight 18, which is a weight member constituting the automatic opening / closing means, is sandwiched. The cover member 13 and the mounting plate 17 are fixed on a straight line, and therefore, when the support shaft 15 rotates, the support member 15 automatically swings in opposite directions about the support shaft 15 as a fulcrum. In normal times, the weight 18 is heavier with the support shaft 15 as a fulcrum, and the lid member 13 is raised as shown by a solid line in FIG. Here, the automatic opening / closing means 19 is constituted by members indicated by serial numbers from the reinforcing member 14 to the weight 18.

On the side surface of the upper tank 11B of the tank body 11, there is provided a catalyst suction pipe 20 which is bent in a substantially "L" shape. The catalyst suction pipe 20 has a vacuum suction hose extending from the reactor 1 side. The other end of 3A is connected. Therefore, the powdered catalyst that has been pulverized in the reactor 1 is introduced into the tank main body 11 from the catalyst suction pipe 20. Here, the pipe 20
Is formed much smaller than the cross-sectional area of the tank body 11, the vacuum suction force in the tank body 11 is weakened, so that the catalyst falls by its weight,
Only air will be sucked. The catalyst suction pipe 20 may be provided on the upper lid 11C of the upper tank 11B.

The upper lid 11C of the upper tank 11A of the tank body 11 is provided with an air introduction pipe 21. The air introduction pipe 21 has a flange 21 and a lid 2 with a handle.
2 is attached. A pipe 2 is attached to a portion of the upper lid 11C where the air introduction pipe 21 is attached.
An air introduction hole 11D having a diameter smaller than the diameter of 1 is opened, and a guide pipe 24 having the same diameter as the air introduction pipe 21 is provided on the back surface of the upper lid 11C so as to protrude downward.
The guide pipe 24 is configured to guide a stopper ball 25 described later in detail into the air introduction hole 11D.

An air suction pipe 27 for sucking air separated into catalyst and air in the tank body 11 into the vacuum car 2 is attached to a side surface of the air introduction pipe 21. The air suction pipe 27 extends along the upper lid 11C of the tank main body 11 and then is bent so that the tip thereof is along the side surface of the tank main body 11, and the bent side surface is
It is supported by a support 28 extending from the tank body 11. The air suction pipe 27 is provided on an extension of the air suction pipe 20, as shown in FIG. The air suction pipe 20 and the air suction pipe 27 have substantially the same outer diameter. One end of a second suction hose 3 </ b> B connected to the vacuum car 2 is connected to the air suction pipe 27. Therefore, since the air is suctioned from the air suction pipe 27, the inside of the tank main body 11 is in a negative pressure state, and the inside of the tank main body 11 can store the catalyst in an amount larger than the weight of the weight 18.

The air suction pipe 27 is provided with a pressure adjusting means 30. That is, the pressure adjusting means 30 includes a horizontal pipe 32 connected to the air suction pipe 27 via a pipe connecting member 31 such as “tee”, and the horizontal pipe 32 is provided with an opening valve 33 such as a butterfly valve. I have. The opening valve 33 can be opened and closed by driving a cylinder 34 attached to the horizontal pipe 32. When the opening valve 33 is opened, the atmosphere flows into the tank main body 11 from inside the horizontal pipe 32 so that the negative pressure state in the tank main body 11 is released. The opening and closing of the opening valve 33 is performed by driving the cylinder 34 at time intervals set by a timer.

Below the guide pipe 24 in the tank body 11, a ball receiving member 36 formed of a perforated plate or the like and having a round basin section is attached by a bracket (not shown) extending from the tank body 11. . The stopper ball 25 is placed on the ball receiving member 36. The stopper ball 25 is formed of, for example, ceramic or the like. When the catalyst is full in the tank body 11 before the lid member 13 is opened, the stopper ball 25 is pushed upward by the stacked catalyst, and finally the air introduction hole 11D.
Is to be closed. Then, at this time, the air is no longer sucked into the air suction pipe 27 side, and as a result, the negative pressure state in the tank body 11 is released, and the weight of the catalyst and
The balance with the weight of the weight 18 pushing the lid member 13 is lost, the lid member 13 is opened, and the catalyst is discharged. The distance between the ball receiving member 36 and the guide pipe 24 is such that the stopper ball 25 does not fall out from between the opposing end faces.

Here, the separator 10 continuously discharges and discharges the catalyst by a timer setting and a lid member 13 which automatically opens and closes.
Since storage is possible, the capacity of the tank body 11 can be reduced. For example, when the capacity of the tank body has become a 1M ^3, generally the vacuum intensity in the vacuum suction hose, because it uses ^{40~80m 3 / min, 1M 3 /} (40m 3 / 60min) ≒ 1.5sec
This is a plus discharge time, and the time required for discharge is only 5 to 6 seconds, so that efficient and continuous discharge work is possible.

Next, a method for extracting the catalyst in the reactor using the separator 10 will be described. First,
Prior to the catalyst withdrawal operation, the operator, after stopping the operation of the reactor, withdraws the reactant such as heavy oil from the completely cooled reactor 1 and then removes the oil or chemical, or the oil and chemical from the top manhole 1A. It is injected to form an antioxidant film on the catalyst in the reactor 1 (passivation treatment). Alternatively, a passivation process is performed in the process of stopping the operation of the reactor 1.

Since the catalyst in the reactor 1 is expected to be solidified, the operator needs to operate the manhole 1 at the top of the reactor 1.
A enters the reactor 1 from A, and the solidified catalyst is pulverized with a scoop or the like, particularly with a pick 8 if it is hard, and the pulverized catalyst is sucked by the vacuum suction hose 3. The sucked catalyst is sent from the vacuum suction hose 3 to the tank body 11 of the separator 10 via the catalyst suction pipe 20, where the catalyst drops and accumulates, and the air passes through the air suction pipe 27 to the vacuum car 2 side. It is sucked.

Since the inside of the tank main body 1 is in a negative pressure state, a larger amount of catalyst than the weight of the weight 18 is stored.
3 opens, and the atmosphere enters the inside of the tank body 11,
The balance of the pressure inside the tank main body 11 is lost, and the lid member 13 is opened to discharge the catalyst in response to the weight of the weight 18. After the catalyst is discharged, the lid member 13 is lifted by the weight of the weight 18, and the lower discharge port A of the tank body 11 is closed. This series of operations is performed continuously with the automatic discharge of the catalyst by the timer setting of the separator 10. The catalyst is transferred to the hopper 4 below the tank body 11 and is put into the container pack 6 from there. The container pack 6 is closed at the site and transported to the temporary storage place.

In the catalyst removal operation, after the upper bed of the reactor 1 is completed, the lower bed is inserted into the lower bed through the manhole of the partition plate 1C, and the catalyst is extracted from the lower bed by the same operation as the above-described upper bed.

According to the present embodiment, the following effects can be obtained. When the catalyst in the reactor 1 is solidified, oil or chemical is injected to form a film on the catalyst, and then crushed and extracted, so that oxidation of the catalyst can be prevented, and heat generation and the like are eliminated. At the same time, since the outside air always flows in from the manhole 1A, the catalyst can be cooled, so that the operation at a high temperature is eliminated and the operation is performed under an air atmosphere. Therefore, the extraction operation is facilitated, the operation efficiency is improved, and the operation stop time of the plant can be shortened.

The separator 10 is disposed between the reactor 1 and the vacuum car 2 and can automatically and continuously discharge the catalyst. Therefore, the catalyst withdrawing operation of the reactor 1 can be performed very efficiently and in a short time. In addition, it is possible to reduce the time for stopping the operation of the plant that is stopped for the catalyst removal operation of the reactor 1.

In the separator 10, the cross-sectional area of the pipe 20 is formed much smaller than the cross-sectional area of the tank main body 11, so that the vacuum suction force in the tank main body 11 is weakened. Therefore, only the air is sucked. Therefore, since the catalyst and the air are efficiently separated, the catalyst is not sucked into the vacuum car 2.

The lid member 13 is rotatably attached to the tank body 11 by a support shaft 15, stores a catalyst heavier than the weight 18, and opens the opening valve 33 by driving a cylinder 34 according to a timer setting. When opened, the weight of the catalyst opens to discharge the catalyst. After discharging, the lid member 13 is automatically closed by the weight of the weight 18, so that continuous automatic operation can be performed.
Unlike the conventional case, there is no need for the operator to always be close to slide and open and close the lid, thereby improving work efficiency.

The tank body 11 has a stopper ball 2
5 is provided, even when the catalyst is full in the tank body 11 before the opening valve 33 is opened due to a failure in the timer setting, an error in the setting time, or the like, the catalyst is stacked upward by the stacked catalyst. Pushed up, air introduction hole 1
1D is closed. Therefore, the balance between the weight of the catalyst in the tank body 11 and the weight of the weight 18 pushing the lid member 13 is lost, the lid member 13 is opened, and the catalyst can be discharged, which does not hinder continuous operation. .

The tank body 11 has a guide pipe 24
And a ball receiving member 36 are provided, and the stopper ball 25 is placed on the ball receiving member 36. Further, the gap between the guide pipe 24 and the ball receiving member 36 has a size such that the stopper ball 25 does not come out. Therefore, when the stopper ball 25 rises, it does not protrude from the ball receiving member 36, and the air introduction hole 1
1D can be closed, and the initial purpose can be reliably achieved.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, the separator 10 of the first embodiment is installed on the upper part of a base 5 assembled in a tower shape. What discharged the catalyst into the container pack 6 via the hopper 4 installed below the gantry 5 is replaced with a separator 10
Is installed directly on a transport vehicle 40 such as a dump truck. In this embodiment, the legs 41 are attached to the separator 10.
May be mounted, mounted on a platform suspended by the crane 40 by a crane 42 or the like, and fixed.

In the second embodiment, the same operation and the same effect as described above can be obtained, and the accumulated catalyst can be directly transported to, for example, a distant catalyst exhaust place. Therefore, there is an effect that post-processing can be performed quickly and easily.

FIG. 6 shows a third embodiment of the present invention. In this embodiment, the separator 10 is mounted on a gantry 50 assembled at a predetermined position by a crane 42 or the like. The catalyst is discharged into the container pack 6 below the gantry 50, and the container pack 6 is loaded on a truck by a forklift or the like so that the catalyst can be quickly transported to an exhaust treatment plant.

In the third embodiment, the same operation and the same effect as described above can be obtained, and the accumulated catalyst can be directly transported to, for example, a distant catalyst exhaust place. Therefore, there is an effect that post-processing can be performed quickly and easily.

The present invention is not limited to the above embodiments, but may be modified as follows as long as the object of the present invention can be achieved. That is, in each of the above-described embodiments, the separator 10 includes the pedestal 5 incorporating the hopper 4, the platform such as the transport vehicle 40, and the like.
Although the separator 10 is used by being installed on the pedestal 50 having a low height, the separator 10 may be installed on a pedestal having a predetermined height and discharged directly to the ground. Then, the catalyst accumulated on the ground may be loaded on a dump truck or the like by, for example, an excavator.

In the first embodiment, in the separator 10, the catalyst suction pipe 20 and the air suction pipe 27 are arranged substantially in a straight line in plan view. However, the present invention is not limited to this. The support shaft 15 for supporting the lid member 13 is provided on the air suction pipe 27 side, but the mounting position of the support shaft 15 is not limited.

Further, in each of the above embodiments, the reactor 1 has a two-layer structure composed of upper and lower beds. However, the present invention is not limited to this. It may be a vessel. Further, in each of the above embodiments, the ball receiving member 36 and the stopper ball 25 are provided on the tank body 11, but the stopper ball 25 and the like need not always be provided.

[0048]

As described above, according to the catalyst extracting separator of the present invention, the powdery catalyst extracted from the reactor by vacuum suction is separated from the air in the tank body, and When a predetermined amount is accumulated, the liquid is automatically discharged by the cooperation of the automatic opening / closing means and the pressure adjusting means. Therefore, continuous operation becomes possible, and the efficiency of the catalyst removal operation of the reactor is improved.

According to the method for extracting a catalyst in a reactor using the separator for extracting a catalyst of the present invention, an oil or a chemical is injected into the solidified catalyst in the reactor to prevent oxidation of the catalyst. After the formation of the catalyst, the operation of extracting the catalyst is performed, so that the operation is performed in an air atmosphere. Also,
By the continuous vacuum method, the work is performed while the outside air is flowing, so that the high-temperature catalyst (for example, 40 to 200 ° C.) is cooled, so that the work under the high temperature can be excluded. Therefore, the operation of extracting the catalyst can be performed continuously and easily in a short time, and the operation efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an overall layout view showing equipment for carrying out a method for extracting a catalyst from a reactor according to a first embodiment of the present invention.

FIG. 2 is an overall vertical sectional view showing a separator used for a catalyst extracting operation of the reactor of the present embodiment.

FIG. 3 is an overall plan view showing a separator according to the embodiment.

FIG. 4 is an overall perspective view showing an attached state of a lid member in the separator of the embodiment.

FIG. 5 is an overall view showing a separator according to a second embodiment of the present invention.

FIG. 6 is an overall view showing a separator according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Reactor 2 Vacuum car 3 Vacuum suction hose 6 Container pack 10 Separator for catalyst removal 11 Tank body 13 Openable / closable lid member 15 Support shaft 18 Weight 20 Catalyst suction pipe 27 Air suction pipe 30 Pressure adjustment mechanism 33 Opening valve 34 Cylinder

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kenjiro Takagi Kashima Engineering Co., Ltd. 3-6 Kioicho, Chiyoda-ku, Tokyo (72) Inventor Tomokazu Yanoguchi 4-58-8 Jonanjima, Ota-ku, Tokyo Yano Kuchi Jiko Co., Ltd.

Claims (4)

[Claims] 1. A vacuum suction device for forming an antioxidant film on a reactor and a catalyst in the reactor, pulverizing the coated catalyst into a powder, and sucking the powder catalyst. And a separator for extracting the catalyst that separates the coated catalyst sucked by the vacuum suction device from the air and sucks only the air into the vacuum suction device. A tank member that is openably and closably provided in the tank body, discharges the catalyst in the tank body when opened, and allows the catalyst to be stored in the tank body when closed; and the tank. Automatic opening / closing means provided on the main body, wherein the lid member is opened to discharge the catalyst when the catalyst in the tank main body reaches a predetermined amount, and the lid member is automatically closed after the discharge, and provided on the tank main body. The Pressure adjusting means for adjusting the pressure in the tank body and releasing the pressure in the tank body from the negative pressure state to open the lid member when the catalyst in the tank body reaches a predetermined amount. Separator for extracting catalyst. 2. The separator for extracting catalyst according to claim 1, wherein the automatic opening / closing means is provided on the tank main body via a bracket, and is rotatably supported by the lid member. A catalyst extracting separator, comprising: a weight member provided on a shaft on a side opposite to the lid member and capable of rotating the lid member upward in a normal state. 3. The separator according to claim 1, wherein the pressure adjusting means is provided in the tank body in the middle of the vacuum suction path and sends the atmosphere into the vacuum suction path. Wherein the open valve is driven to open and close by a timer-set cylinder. 4. A method for extracting a catalyst in a reactor using the separator for extracting a catalyst according to claim 1, wherein an antioxidant film is formed on the catalyst in the reactor. The catalyst on which the film is formed is pulverized into powder, and the powder catalyst is sucked by a vacuum suction device, and the powder catalyst sucked by the vacuum suction device is subjected to the reaction. The catalyst is introduced into the catalyst extraction separator arranged between the vessel and the vacuum suction device, and the powdery catalyst is separated from the air by the catalyst extraction separator, and the pressure is controlled by pressure adjusting means and automatic opening / closing means. Opening and closing the lid member, continuously discharging the catalyst in the tank body of the catalyst extraction separator, and allowing only the air to be sucked into the vacuum suction device, wherein the catalyst extraction separator The catalyst extraction method in the reactor was use.