JPH09240838A - Conveyed object seal discharge device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To seal a transfer passage for a conveyed object with the conveyed object itself and transfer it. SOLUTION: A conveyed object seal discharge device is composed of a hopper 1, which collects, separates and temporary stores conveyed objects under a first pressurized environment, an elbow pipe 3, which has an opening for one of its ends porovided on a wall on the lower end size of the hopper 1, a trumpet, has the other end of the elbow pipe 3 communicate with the hopper 1 size and the other end opened to a storage tank 7 of a second pressurized environment, and a push-out means 2 which pushes the conveyed objects stored at the lower end part of the hopper 1 from the opening on end of the elbow pipe 3 to the push-in storage tank 7. Thus the first pressurized environment, where the conveyed objects is temporary stored, and the second pressurized environment where the discharged conveyance goods is accepted are blocked by the conveyance goods seal pushed into the elbow pipe 3 of strong transfer resistance by the push-out means 2 and the conveyed objects between both pressurized environments can be transferred without damaging both pressurized environments.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a first pressure of a conveyed product which has been transferred under a first pressure environment and which has various sizes and shapes and is not suitable for an air seal. A device for moving both pressure environments without changing under a second pressure environment having a different pressure from the environment, for example,
Atmospheric pressure environment that does not impair the vacuum environment of the discharge source regardless of the quality such as combustible and non-combustible, which is transported by vacuum transportation and temporarily stored under vacuum environment, and has various shapes. The present invention relates to a lower storage tank and a conveyed product seal discharging device applied for continuous discharging.

[0002]

2. Description of the Related Art In a device for transferring a conveyed product between pressure environments having different pressure states, for example, a dust vacuum transportation device, a large amount of dust collected by vacuum transportation of dust and temporarily stored in a vacuum environment is used. It needs to be carried out under atmospheric pressure.
That is, the dust thrown in from the dump port in the atmospheric pressure environment is collected at a place away from the dump port due to the air flow flowing from the dump port to the other end in the waste transport pipe with the other end being vacuumed. The separated air is separated from the conveyed air by a separator placed in a vacuum environment and temporarily stored in a vacuum container.

Therefore, in order to continuously operate such a vacuum transportation device, it is necessary to discharge the dust temporarily stored in the container continuously or intermittently for treatment. There is a need for a device that conveys waste in a container under a vacuum environment to a storage tank under a atmospheric pressure environment provided with a processing device without breaking the vacuum environment. In order to carry out the waste in the vacuum environment to the atmospheric pressure environment, the inside of the container in which the waste is temporarily stored and the inside of the transport device such as the waste transport pipe which is in a vacuum state are shut off to transport the waste. It has been practiced to take out the trash after opening the inside of the container to the atmosphere after making sure that the trash transport inside does not occur.

The following devices have been conventionally used as the discharging device for discharging the dust in the vacuum environment to the atmospheric pressure environment.

(1) Container-type vacuum-resistant waste storage device (container-type discharge device) As shown in FIG. 3, this container-type discharge device includes a shutoff valve 02, a vacuum-resistant dust compressor 03, a vacuum-resistant container 04, and the atmosphere. It is composed of an introduction valve 05. 01 in connected separation
The one end of the air A is evacuated by the air extraction pipe 06 inside, and is transported by the flow of the air A flowing inside the waste transport pipe 07, introduced into the separator 01, and separated. Waste D separated from the air by machine 01 is
It passes through the shutoff valve 02 and is discharged to the storage part of the waste compressor 03 installed in the lower part of the separator 01. The waste compressor 03 joins the side wall of the storage part and temporarily stores the waste D in a vacuum state. It is packed in a container 04 as a container to be operated.

Shut-off valve 02, refuse compressor 03, container 0
Each of 4 is air-tightly connected by interposing packing or the like, and while the dust D is packed in the container 04, the shutoff valve 02, the dust compressor 03, and the container 04.
Like the inside of the separator 01, the inside of is kept at a vacuum pressure, and one end of the waste transport pipe 07 connected below the separator 01 is kept at a vacuum pressure to continuously convey the dust D. I'm trying to do it.

[0007] Next, when the container 04 is filled with the waste D by packing the waste compressor 03, the shut-off valve 02
Is closed, the communication between the separator 01 and the waste compressor 03 is cut off, the atmosphere introduction valve 05 is opened to make the inside of the container 04 and the waste compressor 03 atmospheric pressure, and then the full container 04
Is separated from the side wall of the storage part of the waste compressor 03, is removed, and an empty container is connected to the waste compressor 03. After connecting the empty container, closing the atmosphere introduction valve 05, and then shutting off the valve 0
2 is opened again, the inside of the container 04 and the waste compressor 03 is made to have a vacuum pressure again, and the packing of the waste D into the container 04 is restarted.

(2) Rotating drum type vacuum resistant dust storage device (rotating drum type discharging device) As shown in FIG. 4, this rotating drum type discharging device is constituted by a shutoff valve 08, a rotating drum 09, and an atmosphere introducing valve 010. To be done. As described in the container-type discharge device described above, the waste D transported by the waste transport pipe 07 and separated in the separator 01 passes through the shutoff valve 08 and is installed in the lower part of the separator 01 to remove the waste D. It is discharged into the rotary drum 09 that is temporarily stored in a vacuum state, and is compressed and accumulated by the rotation of the rotary drum 09.

When the inside of the rotating drum 09 is filled with dust D, the shut-off valve 08 is closed and the atmosphere introducing valve 010 is opened to make the inside of the rotating drum 09 atmospheric pressure, and then the discharge lid provided at the rear end of the rotating drum 09. Open 011 and discharge the dust D filled inside. The waste D has been discharged and the rotating drum 09
When the inside becomes empty, the discharge lid 011 is closed, the atmosphere introduction valve 9 is closed, the shut-off valve 7 is opened again, the inside of the rotary drum 09 is vacuumed again, and the discharge of the dust D into the rotary drum 09 is restarted. It

(3) Plural shut-off valve (damper) device (plural damper discharge device) for shutting off the vacuum environment and the atmospheric pressure environment. As shown in FIG. 5, this plural damper discharge device is composed of two or three dampers. 012,013, pressure equalizing valve 014,0
It is composed of 15. First, the pressure equalizing valve 014 is opened, and the air in the second hopper 018, which is closed by the damper 012 and the damper 013 and temporarily stores the dust D in a vacuum state, is extracted from the extraction pipe 016 which is in communication with the air extraction pipe 06. To vacuum pressure. Then, the damper 012 is opened, and as described in the container type discharging device described above, the waste D transported by the waste transport pipe 07 and separated by the separator 01
Is dropped into the second hopper 018 below the separator 01, and when the inside of the second hopper 018 is filled with dust D, the damper 012 is closed.

Next, the pressure equalizing valve 14 is closed, the pressure equalizing valve 015 is opened, and the atmosphere is introduced from the injection pipe 017 into the second hopper 018 to attain atmospheric pressure. When the inside of the second hopper 018 reaches the atmospheric pressure, the damper 013 is opened, and the dust D accumulated on the damper 013 is dropped into the dust container 019 arranged under the second hopper 018 and discharged under the atmospheric pressure environment. To do.

The discharge devices for discharging the dust D in the vacuum environment, which has been used conventionally, to the atmospheric environment have been described above. However, these discharge devices have the following problems.

(1) In the container type discharge device and the rotary drum type discharge device, deformation and buckling of the container 04 and the rotary drum 09 due to negative pressure inside to temporarily store the dust D in a vacuum state are prevented. Therefore, it is necessary to take measures such as providing a reinforcing material to these, and it becomes heavy and expensive, and at the same time as the dust D, a heavy container 04
Therefore, it is necessary to transfer the waste D, and it is also necessary to transfer the dust D from the rotary drum 09 to another device, which deteriorates the transfer efficiency. Further, it is necessary to always maintain the airtightness of the container 04 and the rotary drum 09, which requires careful handling, and the work efficiency is deteriorated.

(2) In the container type discharge device, the rotary drum type discharge device, and the plural damper device, the shutoff valves 02, 08 and the damper 012 are used to shut off the atmospheric pressure from the vacuum pressure.
Since it is mechanically performed at 013, the blocking structure is complicated, expensive, and easy to maintain. Further, the structure that maintains the airtightness of the joint may be damaged due to wear or the like, resulting in lack of reliability.

[0015]

SUMMARY OF THE INVENTION The present invention provides a first pressure environment, such as a discharge device, for carrying away the dust accumulated in the conventional vacuum environment described above, which is carried out under an atmospheric pressure environment. The transported objects having various shapes are transferred to the second pressure environment that is different from the first pressure environment without changing the pressure environment.
In order to eliminate the above-mentioned problems that occur when transferring to the second pressure environment, the transfer is under the first pressure environment and needs to be transferred to the second pressure environment different from the first pressure environment. By generating a sealing property that retains both pressure environments on the object itself, by utilizing this sealing property, both pressure environments are blocked and transferred, and it is possible to transfer between both environments without damaging both pressure environments. An object of the present invention is to provide a transported object seal discharging device.

[0016]

For this reason, the transported object seal discharging device of the present invention has the following means.

(1) A hopper, which is transported under the first pressure environment and is temporarily separated into only the transported objects, for temporarily storing the transported objects having a mixture of various shapes, is provided under the first pressure environment. It was

(2) One end is opened at the lower end side portion of the hopper in which the conveyed product is temporarily stored, and the movement resistance of the conveyed product flowing in from the opening is increased to compress the conveyed product and seal it. In order to generate, the elbow pipe having the opening surface at the other end opened in the direction inclined by θ from the direction orthogonal to the opening surface is provided. The opening on one end side and the opening on the other end side of the elbow pipe may have the same diameter or different diameters. In addition, the angle θ at which both opening surfaces are tilted may be determined in consideration of the occurrence of the sealing property that shuts off the inside of the elbow pipe caused by the compression of the conveyed product. Considering the installation position of the discharge device of
It may be arbitrarily determined in the top, bottom, left and right directions. However, it is optimal to tilt upward so that gravity can be used to maintain the sealing property.

(3) One end is connected to the opening surface at the other end of the elbow pipe that is opened at an angle of θ with respect to the opening surface at the one end side, and the diameter is expanded as it goes to the wake, and the other end is at the second pressure. A trumpet pipe that opens to a storage tank under the environment was installed. The expansion rate of the trumpet tube is unraveled by the elastic force of the conveyed object itself as the conveyed object temporarily compressed by the inclination θ of the elbow is transferred from the other end of the elbow tube to the second pressure environment. It is desirable that the size is about the same.

(4) Conveyed materials stored in the lower part of the hopper are
The elbow pipe is pushed into the elbow pipe from one end side of the elbow pipe that is open to the lower end side of the hopper, and the inclination θ of the elbow pipe is used to compress the conveyed product in the elbow pipe. The inside of the hopper under the pressure environment of No. 1 and the inside of the storage tank under the second pressure environment where the other end of the trumpet pipe is open inside the elbow pipe, and the extruding means for sealing the lower end of the hopper. Set up in. The extruding means may be a screw type that rotates in the conveyed object stored in the hopper and pushes the conveyed object into the elbow, and faces the hopper side wall where one end of the elbow pipe opens. It may be a piston type one in which the stored conveyed product is pushed out toward the opening of the elbow pipe from the side wall of the side hopper.

In the conveyed product seal discharging device of the present invention, the conveyed product under the first pressure environment is pushed into the inside of the elbow pipe from one end opened to the hopper side wall of the elbow pipe by the pushing means by the above-mentioned means. Since it is compressed by the resistance in bending and the pressing force of the pushing means and moves while being filled inside the elbow pipe, it is possible to form a seal that blocks the flow of air in the elbow pipe.

As a result, the first pressure environment in which the hopper for storing the transported material is provided and the second pressure environment in which the storage tube in which the trumpet pipe is opened and the transported material is provided are provided with the elbow. The storage tank, which is shut off inside the pipe and retains both pressure environments during the transfer of the conveyed product, and takes out the conveyed product from the first pressure environment to the second pressure environment, does not require reinforcement and is heavy. The cost can be reduced.

Further, since the transfer of the conveyed product and the formation of the seal by the conveyed product are performed by the elbow pipe and the extruding means, the structure is simple, the maintainability and the reliability are improved, and the cost can be reduced. Furthermore, the hopper and the elbow pipe, and the elbow pipe and the trumpet pipe are always connected to each other, so that the sealing performance is not impaired and the connected state needs to be released. Since the joining with the trumpet tube is performed under the same pressure environment, it is not necessary to obtain the airtightness, and the structure is simple in this respect as well, and the maintainability and reliability are improved, and the cost can be reduced.

Further, since the downstream side of the elbow pipe is connected to the storage tank as a trumpet pipe, the conveyed product compressed by the elbow pipe is gradually fed into the trumpet pipe as it is sent downstream. It is loosened and smoothly discharged into the storage tank. As described above, the series of operations are continuously performed so that air leakage does not occur between the two pressure environments, and the conveyed product in the hopper under the first pressure environment is transferred to the second pressure environment.
It can be discharged into the storage tank under the pressure environment of 2 without changing both pressure environments.

[0025]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a conveyed object seal discharging device of the present invention will be described below with reference to the drawings.

FIG. 1 is a sectional view showing a first embodiment of the conveyed object seal discharging device of the present invention. As described in FIG. 3, one end is introduced into the hopper 01 by the waste transport pipe 07 that is opened in the separator 01 and is evacuated from the air extraction pipe 06 into the separator 01 at one end thereof. ,
The waste D as a conveyed product separated from the air by the separator 01 is
As shown in FIG. 1, it falls into the hopper 1 in the vacuum state as the first pressure environment and accumulates in the lower part. At the lower end of the hopper 1, a screw 2 as an extruding means that is driven by a motor 4 is laterally installed. With this screw 2, dust D accumulated in the lower part is opened at one end on the side wall of the lower end of the hopper 1. It is pushed into the 45 ° elbow pipe 3 as the elbow pipe.

The 45 ° elbow pipe 3 is provided with an opening surface orthogonal to the pushing direction of the dust D by the screw 2, one end of which is opened at the lower end side wall of the hopper 1 and the pushing direction of the dust D by the screw 2 It is a curved pipe provided with an opening surface that opens upward at 45 ° at the other end. The resistance that the course of this 45 ° elbow pipe 3 bends
The dust D, which is pushed into the elbow pipe 3 regardless of the material such as combustible or non-combustible and which has a mixture of various shapes, is compressed and concentrated in the 45 ° elbow pipe 3. Garbage D is 4
When it advances in the 5 ° elbow pipe 3 and the compression progresses to some extent and becomes dense, a seal is formed in the 45 ° elbow pipe 3,
It becomes possible to prevent air leakage in the 45 ° elbow pipe 3.

As a result, the storage tank 7 capable of taking out the dust D under the atmospheric pressure as the second pressure environment described later, and the inside of the hopper 1 are the 45 ° elbow pipe 3 and the trumpet pipe 5 described later. Despite being in communication, the hopper 1 is shut off, the inside of the hopper 1 is kept in a vacuum state, and the inside of the hopper 1 and the transporting device that operates in a vacuum state such as a dust transport pipe are not shut off, and the transporting device is In parallel with the waste collection into the hopper 1 by the above, the waste discharge from the hopper 1 to the atmospheric pressure state can be continuously performed.

Further, the dust D is sent out to the elbow pipe 3 one after another by the motor 4 and the screw 2, and a new seal is formed inside the elbow pipe 3 by the dust D pushed out from the elbow pipe 3 at the seal portion. To be done. In this way, the dust D is rotated by 45 ° from the elbow pipe 3 by the motor 4 and the screw 2.
As long as it is pushed in, the seal portion is always formed in the 45 ° elbow pipe 3, the vacuum state in the hopper 1 is maintained, and even if the operation of the motor 4 is stopped,
The sealing property inside the elbow pipe 3 is maintained. Next, the dust D extruded from the opening surface of the other end of the 45 ° elbow pipe 3 which is inclined by θ and compressed, moves inside the trumpet pipe 5 attached to the other end of the elbow pipe 3, It is discharged to the storage tank 7 in the atmospheric pressure state as the pressure environment of 2. The trumpet tube 3 has a diameter gradually increasing from one end connected to the other end of the 45 ° elbow tube 3 toward the downstream side, and is compressed by the 45 ° elbow tube 3 to form the trumpet tube 5. The extruded dust D is gradually loosened during the movement in the trumpet tube 5 and smoothly progresses in the trumpet tube 5. Near the trumpet tube outlet side 6, there is almost no sealing property and the movement resistance is reduced. , And is discharged to the storage tank 7 under atmospheric pressure.

The transported object seal discharging device of this embodiment is
With the configuration described above, the dust D temporarily stored in the hopper 1 under the vacuum environment is carried to the inside of the elbow pipe 3 from one end of the elbow pipe 3 which opens to the side wall of the hopper 1 by the rotation of the screw 2. Since the elbow pipe 3 is compressed by the resistance in bending and moves while being filled in the elbow pipe 3, a seal that blocks the movement of air in the elbow pipe 3 can be formed.

As a result, the vacuum state in which the hopper 1 for storing the dust D is set, and the trumpet tube 5 opens, so that the dust D
The atmosphere state in which the storage tank 7 in which the waste D is transferred is provided is shut off inside the elbow pipe 3 and both states are maintained when the waste D is transferred, and the storage tank 7 from which the waste D is taken out has an internal state. The vacuum pressure is not applied, no reinforcement is required, and the weight and cost can be reduced.

Further, since the discharge of the dust D and the formation of the seal by the dust D are performed by the elbow pipe 3, the screw 2 for feeding the dust and the motor 4, the structure is simple and the maintainability and reliability are improved, and the cost is reduced. Can be lowered. further,
Hopper 1 and elbow pipe 3, and trumpet pipe 5 and elbow pipe 3
Is always connected, and since the joining of the storage tank 7 for transferring the waste D to the processing site and the trumpet pipe 5 is performed under atmospheric pressure, the airtightness of the joining portion does not deteriorate. , Or
It is not necessary to obtain airtightness, and the structure is simple in this respect as well, maintainability and reliability are improved, and cost can be reduced. Moreover, since the downstream of the elbow pipe 3 is connected to the storage tank 7 as the trumpet pipe 5, the waste compressed in the elbow pipe 3 is gradually fed into the trumpet pipe 5 as it is sent downstream. It is loosened and smoothly discharged into the storage tank 7.

By continuously performing a series of operations in this manner, the dust D in the hopper 1 in the vacuum state is kept in the storage tank in the atmospheric pressure state without causing air leakage and both pressure environments are set. It can be discharged without fluctuation.

Next, FIG. 2 is a sectional view showing a second embodiment of the conveyed object seal discharging device of the present invention.

In this embodiment, as a pushing means for pushing the dust D collected in the lower part of the hopper 1 into the elbow pipe 3, instead of the screw 2 shown in the first embodiment, a piston 8 driven by hydraulic pressure is used. Adopted. Also in the conveyed object seal discharging device of the present embodiment, the same operation and effect as those of the first embodiment described above can be obtained.

In the above-described embodiment, the removal of the dust D, which is vacuum-conveyed and is under a vacuum pressure, to the atmospheric pressure has been described. However, the conveyed object seal discharging device of the present invention has such an embodiment. Is not limited to
On the contrary, the transported object under the atmospheric pressure which is the first pressure state,
Under the second pressure state, which is a pressure state higher than atmospheric pressure,
It is also possible to carry in (discharge) without damaging the second pressure state.

[0037]

As described above, according to the transported object seal discharging device of the present invention, due to the configuration described in the claims, (1) when the transported object is transferred, the first pressure environment and the The second pressure environment is cut off inside the elbow pipe, both pressure environments are maintained, and the operation performed under the first pressure environment or the second pressure environment should be interrupted regardless of the transfer. In addition, since the first pressure environment does not act on the storage tank taken out under the second pressure environment, no reinforcement or the like is required.

(2) Further, since the transfer of the conveyed product and the formation of the seal by the conveyed product are performed by the elbow pipe and the extruding means, the structure is simplified.

(3) Further, the transfer of the conveyed product can be carried out in the connected state at all times or in the connected state in which it is attached and detached under the same pressure environment.

(4) The conveyed product which has been compressed inside the elbow pipe to form a seal is gradually unraveled in the trumpet pipe as it is sent downstream, and can be smoothly discharged into the storage tank.

As described above, the structure is simple, the maintenance is easy, the holding cost is low, and the reliability is high. In addition, the size of the device can be reduced, the cost of the discharging device can be reduced, and the space can be saved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of a conveyed object seal discharging device of the present invention,

FIG. 2 is a cross-sectional view showing a second embodiment of the conveyed object seal discharging device of the present invention,

FIG. 3 is a cross-sectional view showing a first example of a dust discharging device as a conventional conveyed product seal discharging device,

FIG. 4 is a cross-sectional view showing a second example of a dust discharging device as a conventional conveyed product seal discharging device;

FIG. 5 is a sectional view showing a third example of a dust discharge device as a conventional conveyed product seal discharge device.

[Explanation of symbols]

 1 Hopper 2 Screw as Extruding Means 3 Elbow Tube 4 Motor 5 Trumpet Tube 6 Trumpet Tube Exit Side 7 Storage Tank 8 Piston

Claims (1)

[Claims] 1. A discharge for transferring a conveyed article having various shapes, which has been conveyed in a first pressure environment, into a second pressure environment different from the first pressure environment without changing the pressure environment. In the apparatus, a hopper for temporarily storing the conveyed object in the first pressure environment, an elbow pipe having one end opened at a lower end side portion of the hopper, and one at the other end of the elbow pipe.
A trumpet pipe having ends connected to each other, the other end being opened to a storage tank for storing a conveyed product in a second pressure environment, and the conveyed product stored in the hopper is pushed from one end of the elbow pipe,
An extruding means for extruding to the storage tank via the trumpet pipe is provided, and a conveyed product seal discharging device is provided.