TWI478707B - Composite container with an inner reservoir of 60 liters and chemical discharging tube - Google Patents

Description

60 liter inner bag composite container and liquid medicine discharge pipe Technical field

The present invention relates to an inner bag composite container having a capacity of 60 liters in a resin-made inner container in a steel outer container, and a chemical liquid discharge pipe for the 60 liter inner bag composite container.

Background technique

For example, in a steel container for accommodating a food or a liquid medicine, in order to prevent the food or the chemical liquid from directly contacting the inner surface of the steel container and causing corrosion, etc., the inner container made of the resin containing the food or the chemical liquid is stored in the container. The inner bag composite container 10 as shown in Fig. 11 in the outer container of the steel.

In the inner bag composite container 10, the inner container 1 is formed of a polyethylene body and is formed in a bag shape, and an inlet and outlet 1b for inserting and discharging the filler is integrally formed with the container body portion at the upper portion thereof. Further, the outer peripheral surface of the inlet and outlet 1b is formed into a male thread shape.

On the other hand, in the outer container 2 of the inner bag composite container 10, the body 2a made of a cylindrical steel plate and the bottom plate 2b made of a steel plate are wound to form a housing portion.

Then, after the inner container 1 is placed in the accommodating portion, the inlet and outlet 1b are protruded from the opening formed in the top plate 2c of the steel sheet, and the body 2a and the top plate 2c are wound and formed in the outer container 2 made of steel. The inner bag composite container 10 of the inner container 1 made of resin is housed. After the filling material is injected into the inner bag composite container 10, the lid body 3 is screwed to the inlet and outlet 1b which is protruded from the top plate 2c, and the filling of the filling is planned.

Examples of the chemical liquid include, for example, a CMP slurry, a photoresist, a developing solution, an etching solution, a cleaning solution, and the like in the field of semiconductors, and are a photoresist, a color resist, and a color in the field of liquid crystal. Filter material, etc. Further, in these chemical liquids, there is also a need for shading, and since the outer side container 2 made of steel has a light-shielding property, the use of the inner bag composite container 10 is advantageous in this point.

In the case of processing a chemical liquid in the semiconductor field or the like, the inner container 1 does not need to be said, and the built-in composite container 10 also requires high-definition clarity. Further, even when the chemical liquid is discharged, high-definition purity is required, and as a discharge method, a method in which the lid body 3 is removed and attached, and a dispenser having a discharge tube is used for discharge can be employed. This method has a pumping method of pumping a chemical solution by a pump, or a pressurizing method of pressurizing a chemical solution by injecting nitrogen gas into a canister or the like.

Advanced technical literature Patent literature

Patent Document 1: Japanese Laid-Open Patent Publication No. 2007-45429

As the inner bag composite container for a chemical liquid used in the semiconductor field or the like as described above, a so-called use canister having a content of 20 liters is widely used. On the other hand, as described above, since the dispenser is used for the discharge of the chemical liquid, it is necessary to carry out the loading and unloading of the dispenser on the container every time about 20 liters of the liquid medicine is discharged, which is very complicated. .

Further, the chemical liquid used in the semiconductor field or the like is very expensive, and from the viewpoint of cost, there is a demand for the user side to reduce the amount of the residual liquid in the inner bag composite container as much as possible.

The present invention has been made to solve the above problems, and an object thereof is to provide a 60 liter inner bag composite container which can reduce the complexity of the work, and a medical liquid discharge pipe for the 60 liter inner bag composite container.

In order to achieve the above object, the present invention is constituted as follows.

In other words, the 60-liter inner bag composite container according to the first aspect of the present invention is characterized in that it has an inner container and is made of a resin, and accommodates a chemical liquid requiring high-definition clarity, and has a storage capacity of 60 liters. a liquid inlet/outlet portion is provided on the top surface, and the outer container is made of steel, and the inner container is housed along the inner surface of the storage portion formed by winding the bottom plate with the cylindrical body, and the liquid inlet and outlet portion is further formed. The protruding mouth portion is formed by winding the top plate of the opening in the above-mentioned body.

Further, the liquid inlet and outlet portion of the inner container may have a thread for holding and a screw for the lid in two stages concentrically along the axial direction of the liquid inlet and outlet portion on the outer peripheral surface of the liquid inlet and outlet portion; Forming with a threaded system close to the top surface, having a diameter through the opening for the mouth portion of the outer container for screwing a thread of the spreader that holds the liquid inlet and outlet portion to the top plate; It is formed by being spaced apart from the top surface and having a smaller diameter than the holding thread, and is configured to screw the screw of the lid of the mouth of the liquid inlet and outlet.

Further, the top plate may form a concave portion from the opening for the mouth portion to a region exceeding the center of the top plate around the opening for the mouth portion.

Further, the outer casing may be formed of an electrogalvanized steel sheet which may be omitted from coating, and the chemical liquid is used in at least one of a semiconductor field and a liquid crystal field, and the inner container is high in specifications according to the chemical liquid. It is made of density polyethylene resin and is formed by injection molding under high quality management.

Further, the chemical liquid discharge pipe according to the second aspect of the present invention is characterized in that it can be attached to a liquid inlet/outlet portion of the inner container provided in the 60-liter inner bag composite container in the first aspect, and a chemical liquid discharge pipe for the 60-liter inner bag composite container discharged from the liquid medicine contained in the inner container to the outside of the container; the resin liquid is made of a resin which is flexible and resistant to liquid, and is near the front end of the liquid suction port Some of the weights are placed in a container for discharging the liquid medicine, and the liquid suction port is directed toward the deformed portion of the bottom plate of the 60-liter inner bag composite container.

According to the 60 liter inner bag composite container of the first aspect of the present invention, since the storage capacity is 60 liters, the capacity is increased with respect to the previous 20 liters, and the troublesome work for discharging the chemical liquid can be reduced.

Further, in the above-described 60 liter inner bag composite container, the holding screw and the cover thread are formed in the liquid inlet and outlet portion of the inner container. Therefore, the liquid inlet and outlet portion of the inner container which is protruded from the opening of the mouth of the top plate can be held by the top plate by the spreader screwed to the holding screw. Therefore, the attachment and detachment of the lid body screwed to the screw for the lid body can be easily performed, and the workability in the discharge operation of the chemical liquid can be improved.

Further, a recess is formed in the top plate around the opening for the mouth. Therefore, even if the inside of the container is pressurized for discharging the chemical liquid, the expansion of the top plate can be prevented or suppressed. On the other hand, no pressure-resistant treatment was applied to the bottom plate. Therefore, by the complementary effect with the concave portion, the bottom plate, particularly the central portion of the bottom plate, can be expanded toward the outside of the container by the above-described pressurization. As a result, when the liquid medicine is discharged, the residual liquid can be collected in the deformed portion of the expansion, and the effective liquid medicine can be discharged, and the amount of the residual liquid can be reduced.

Further, by molding the inner container with a high-density polyethylene resin, it is possible to have liquid resistance and high cleanliness. Further, the chemical liquid is a chemical liquid used in at least one of the semiconductor field and the liquid crystal field, and is spray-molded under the quality control conforming thereto. Therefore, the interior container has high-definition clarity and is suitable for the operation of the chemical liquid used in at least one of the semiconductor field and the liquid crystal field. Further, the outer container is also formed of an electrogalvanized steel sheet, whereby the outer coating can be omitted. Therefore, it is possible to reduce the possibility of mixing foreign matter in the container, and it is possible to achieve not only the inner container but also the high purity of the container.

Further, the chemical liquid discharge pipe according to the second aspect of the present invention can be attached to the 60 liter inner bag composite container of the first aspect, and has a weight at the end portion before the chemical liquid discharge pipe. Therefore, the liquid suction port of the liquid medicine discharge pipe can be aligned toward the deformed portion of the bottom plate of the outer container, and complements the concave portion of the top plate to perform the efficient discharge of the liquid medicine, and the residual liquid amount can also be plotted. reduce.

Simple illustration

Fig. 1 is a partial cross-sectional view showing the structure of a 60 liter inner bag composite container in an embodiment of the present invention.

Figure 2 is a plan view of the 60 liter inner bag composite container shown in Figure 1.

Fig. 3 is a perspective view of the 60 liter inner bag composite container shown in Fig. 1.

Fig. 4 is a cross-sectional view showing the liquid inlet and outlet portion of the inner container of the 60 liter inner bag composite container shown in Fig. 1.

Fig. 5 is a view showing the state of the residual liquid when the 60 liter inner bag composite container shown in Fig. 1 is inverted and discharged.

Fig. 6 is a view showing an example of a modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, (A) is a plan view, and (B) is a side view of the arrow B. ) The arrow is viewed from the side view of C.

Fig. 7 is a view showing another modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, (A) is a plan view, and (B) is a side view.

Fig. 8 is a view showing another modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, wherein (A) is a plan view and (B) is a side view.

Fig. 9 is a view showing a chemical discharge pipe and a disperser mechanism which can be attached to the 60 liter inner bag composite container shown in Fig. 1.

Fig. 10 is a perspective view showing a tilting table which can be applied to the 60 liter inner bag composite container shown in Fig. 1.

Figure 11 is a diagram showing the construction of a prior 20 liter inner bag composite container.

Form for implementing the invention

A 60 liter inner bag composite container according to an embodiment of the present invention will be described below with reference to the drawings. In the drawings, the same or similar components are denoted by the same reference numerals.

The configuration of the 60 liter inner bag composite container 100 in the present embodiment is shown in Figs. 1 to 4 . Similarly to the conventional 20-liter inner bag composite container, the 60-liter inner bag composite container 100 includes a resin-made inner container 110 and a steel outer-package container 120 that houses the inner container 110.

The inner container 110 is made of a high-density polyethylene resin and is formed into a bag shape by a blow molding, and has a capacity of 60 liters. The top surface 111a of the main body portion 111 is integrally formed with the main body portion 111 to be used for medicine. The liquid liquid inlet and outlet portion 112. The liquid inlet/outlet portion 112 may be simultaneously molded at the time of blow molding of the main body portion 111, or may be separately molded and attached to the main body portion 111 by fusion or the like. Further, as shown in FIG. 4, in the outer peripheral surface of the liquid inlet/outlet portion 112, two stages of holding threads 1121 and a lid body are formed concentrically in the axial direction 112a of the liquid inlet/outlet portion 112 in a male screw shape. Use thread 1122.

The male thread formed by holding the thread 1121 close to the top surface 111a has a diameter passing through the opening 123a of the mouth formed in the top plate 123 of the outer container 120, and is used to screw the liquid inlet/outlet portion 112 to the outer container 120. The spreader 113 of the top plate 123.

The cover thread 1122 is a male thread having a smaller diameter than the holding screw 1121, and is located above the holding screw 1121 in the axial direction 112a, and is configured to screw the lid of the mouth portion 112b of the liquid inlet/outlet portion 112. Body 115.

The liquid medicine contained in the inner container 110 also includes a chemical liquid which is required to be high-definition in operation, and corresponds to, for example, a chemical liquid used in at least one of the semiconductor field and the liquid crystal field. As described above, as a chemical liquid in the field of semiconductors, for example, a CMP slurry, a photoresist, a developing solution, an etching solution, a cleaning liquid, etc., in the field of liquid crystal, a photoresist, a color photoresist, and a color Filter material, etc.

Since the liquid medicine is contained, the inner container 110 is required to have high-definition purity. Therefore, as described above, the inner container 110 is made of a high-density polyethylene resin of a chemical liquid specification and is manufactured under high quality control. Immediately after the production, the inner plug 114 is applied to the mouth portion 112b of the liquid inlet/outlet portion 112, the inside is sealed, and the lid body 115 is screwed to the lid body thread 1122 to seal the inner plug 114.

Further, as will be described later, when the contained medical solution is discharged, the lid body 115 and the inner plug 114 are removed, and as shown in Fig. 9, the plug body 201 constituting the dispenser mechanism 200 is screwed to the cap thread 1122. .

The 60-liter inner bag composite container 100 exterior container 120 has a body 121 made of a cylindrical steel plate, a bottom plate 122 made of a steel plate, and a top plate 123. As described above, since the container of the 60-liter inner bag composite container 100 is required to operate with high-definition liquidity, the outer container 120 is also required to be manufactured in a higher-definition manner than the pan-product. Therefore, the body 121, the bottom plate 122, and the top plate 123 of the outer casing 120 are made of an electrogalvanized steel sheet, and the outer coating can be omitted. Thereby, it is possible to reduce the possibility of foreign matter entering the container, and the like, not only the inner container 110 but also the high-definition clarity of the entire 60-liter inner bag composite container 100.

The body 121 has the same diameter at both ends. The accommodating portion 120a is formed by winding such a body 121 and the bottom plate 122, and the above-described inner container 110 is loaded in the accommodating portion 120a. Moreover, the size of the accommodating portion 120a is the size corresponding to the inner container 110 having a capacity of 60 liters, and the inner container 110 is housed in contact with the inner surface of the accommodating portion 120a. After the storage, the holding screw 1121 of the liquid inlet/outlet portion 112 in which the inner container 110 is formed can be wound around the body 121 by the top plate 123 of the opening 123a of the size. At this time, the liquid inlet/outlet portion 112 protrudes from the mouth opening 123a of the top plate 123 toward the outside of the container, and the spreader 113 is screwed to the holding screw 1121, whereby the liquid inlet/outlet portion 112 is held by the spreader 113. Top plate 123.

The spreader 113 is made of a resin or a metal, for example, a plate-like member, and has a through hole formed in the inner peripheral surface to form a male screw 113a that engages with the holding screw 1121 of the liquid inlet/outlet portion 112, and has a mouth opening 123a that exceeds the top plate 123. The outer peripheral portion 113b of the size. Therefore, the male screw 113a of the spreader 113 is screwed to the outside of the container by the holding screw 1121 protruding from the mouth opening 123a of the top plate 123 toward the outside of the container, whereby the outer peripheral portion 113b of the spreader 113 and the top plate 123 are brought into contact with each other. Then, the spreader 113 holds the liquid inlet and outlet portion 112 of the inner container 110 on the top plate 123 of the outer container 120. Moreover, the shape of the spreader 113 is not limited to the shape shown in the figure.

Further, as shown in the second and third figures, the top plate 123 is formed with a concave portion 123b that allows the top plate 123 to be uniformly recessed from the outside of the container to the inside around the mouth opening 123a. Further, the concave portion 123b and the top plate 123 are connected by the inclined surface 123d. However, the concave portion 123b is not limited thereto, and may be, for example, an arc shape. Such a concave portion 123b is formed from the vicinity of the opening for opening mouth 123a to a region 123c exceeding the center of the top plate 123. This is because the center portion of the top plate 123 is most easily deformed by pressurization in the container described below. Further, in the present embodiment, the concave portion 123b has a substantially egg-shaped shape which is narrower than the portion of the liquid inlet/outlet portion 112 as shown in the drawing, but is not limited to the shape, and may be, for example, a region. The 123c portion also has an oblong shape equal to the size of the liquid inlet and outlet portion 112.

Similarly to the conventional inner bag composite container, in the 60 liter inner bag composite container 100 of the present embodiment, the discharge of the chemical liquid as the stored product can be performed by injecting an inert gas into the container 100. The recessed portion 123b serves to prevent or suppress the expansion and deformation of the top plate 123 during the pressurization. Further, as described below, the bottom plate 122 is also deformed.

On the other hand, as shown in Fig. 1, the flat plate 122 is held by a means for preventing deformation as in the concave portion 123b. Further, the bottom plate 122 and the top plate 123 are made of the same material using the same thickness. Therefore, at the time of the above-mentioned pressurization, the deformation of the top plate 123 of the concave portion 123b is more difficult, and the entire bottom plate 122, particularly the central portion of the bottom plate 122, can be more toward the outside of the container than in the case where the concave portion 123b is not provided. Swell. The portion thus expanded becomes the deformed portion 129 (Fig. 9). As a result, the residual liquid can be collected in the deformed portion 129 of the bottom plate 122 during the end of the discharge of the chemical liquid. Therefore, efficient drug discharge can be performed, and the amount of residual liquid can be reduced. From this point of view, the recessed portion 123b can also be used to form the deformed portion 129 on the bottom plate 122, and is used to reduce the amount of residual liquid.

Further, in the present embodiment, the deformation of the top plate 123 and the deformation of the bottom plate 122 are promoted by providing the concave portion 123b as described above. However, for the purpose of achieving the above, the concave portion 123b is not limited, and for example, the top plate 123 may be implemented. Set up devices such as ribs.

Further, as shown in Figs. 1 and 3, the top plate 123 is located at the lower side with respect to the upper end 101 of the 60 liter inner bag composite container 100, and the mounting position of the spreader 113 is further lowered by the recess 123b. segment. Therefore, by providing the concave portion 123b, as shown in Fig. 1, the lid body 115 is screwed into the lid body 115 in the state in which the lid thread 1122 of the liquid inlet/outlet portion 112 is screwed into the lid body 115, so that the upper surface of the lid body 115 can be positioned in the 60 liter inner bag composite container 100. Above the upper end 101. Thereby, for example, even in the case where the 60-liter inner bag composite container 100 is stacked, there is an effect that damage to the lid body 115 can be prevented.

Further, as shown in Figs. 2 and 3, at least two handles 124 for operating the container are attached to the outer surface of the top plate 123. The case where the handle 124 is provided at two places is illustrated in Fig. 2, and the case where it is set at three places is illustrated in Fig. 3.

Further, as shown in Fig. 1, the surface of the body 121 is also formed at two places on the top plate side and the bottom plate side along the circumferential direction of the body 121 to prevent the rigidity of the body 121 and prevent or suppress the deformation of the body 121. Belt 121a.

Thereby, a 60 liter inner bag composite container 100 in which the resin inner container 110 is housed in the steel outer container 120 is produced.

In the 60-liter inner bag composite container 100, the chemical liquid is injected into the inner container 110 via the liquid inlet/outlet portion 112 protruding from the top plate 123. After the injection, the inner plug 114 is applied to the mouth portion 112b of the liquid inlet/outlet portion 112, and the lid body 115 is screwed to the lid body thread 1122 to seal the chemical liquid.

By using the 60 liter inner bag composite container 100 thus constructed, since the capacity is increased with respect to the previous 20 liters, the frequency of discharge of the chemical liquid is reduced, and the troublesome work can be reduced.

The discharge of the above-mentioned chemical liquid contained in the 60-liter inner bag composite container 100 is usually performed by pressurizing the container from the viewpoint of weight and workability, but the amount of the remaining liquid is extremely small, and the above is also considered. The liquid inlet/outlet portion 112 faces downward to reverse the container 100. However, even in such a case, as shown in Fig. 5, the shoulder portion of the inner container 110 in the vicinity of the liquid inlet/outlet portion 112 is liable to remain in the chemical liquid 108.

In order to eliminate such residual liquid, the inner container may take the following constitution. In other words, as in the inner container 110-1 shown in Fig. 6, a recess 130 recessed inward from the outer side of the inner container 110-1 is provided at the shoulder of the inner container 110-1 near the liquid inlet/outlet portion 112. Further, in Fig. 6, (A) is a plan view of the inner container 110-1, (B) is a side view seen from the direction of the arrow B in (A), and (C) is from the direction of the arrow C in (A). Side view seen. Moreover, the numbers 131 and 132 are provided on the inclined surface formed in the top surface 111a of the interior container 110-1.

The recess 130 is a shoulder portion of the top surface 111a and is disposed on both sides of a line segment passing through the center of the top surface 111a and the center of the liquid inlet and outlet portion 112. Such a recess 130 can be easily formed by blow molding when the inner container 110-1 is molded.

By providing such a concave portion 130, the container is tilted to discharge the chemical liquid, and since the concave portion 130 is formed in the portion where the chemical liquid stays, the chemical liquid is not retained, and is discharged from the liquid inlet/outlet portion 112, whereby the amount of the residual liquid can be reduced.

The angle between the connecting top surface 111a and the slope 132 of the recess 130 is about 45 degrees. When the 60-liter inner bag composite container 100 is dropped or the hydraulic pressure in the container is lowered, the connection portion between the top surface 111a and the concave portion 130 is weakened. However, by making the portion a slope 132, the punching can be alleviated. Preferably, the upper end and the lower end of the inclined surface 132 are formed in an arc shape. By the formation of the arc shape, the strength of the connection portion between the top surface 111a and the concave portion 130 is improved, and damage to the inner container 110 can be prevented or reduced.

In the planar shape, the corner portions 130a, 130b, and 130c of the concave portion 130 are also preferably formed in an arc shape. With such a configuration, the strength of the connection portion between the top surface 111a and the concave portion 130 is further improved.

Although not shown, a spacer is preferably provided in the gap between the outer container 120 and the recess 130 in the inner container 110-1. As the spacer, for example, a polystyrene foam can be used. When the concave portion 130 is provided, the strength of the inner container 110-1 is lowered, but it is reinforced by the presence of a spacer in the gap portion.

Further, as a modification of the concave portion 130, the concave portion 135 shown in Fig. 7 may be formed. Further, Fig. 7(A) is a plan view of the inner container 110-2, and (B) is a side view. The recessed portion 135 is formed by chamfering a shoulder portion (broken line portion) of the inner container 110-2 in the vicinity of the liquid inlet/outlet portion 112. The amount of residual liquid can also be reduced by the recess 135. Further, it is not limited to the inclined surface, and the arc portion of the shoulder portion is also increased in comparison with the previous one, and has a considerable effect.

Further, as a modification of the concave portion 130, a configuration shown in Fig. 8 may be employed. Further, Fig. 8(A) is a plan view of the inner container 110-3, and (B) is a side view. In the inner container 110-3, the liquid inlet/outlet portion 112 is close to the side wall side of the inner container 110-3, and the shoulder portion passing through the extension line of the line segment between the center of the top surface 111a and the center of the liquid inlet/outlet portion 112 is formed as The arc R is larger than the arc of the previous shoulder portion (dashed line), and the chemical liquid is not retained in the shoulder portion when the 60 liter inner bag composite container 100 is tilted to discharge the chemical. In such a configuration, the amount of residual liquid can also be reduced. Further, instead of expanding the circular arc R, the portion may be a sloped surface. Further, in this case, since the liquid outlet portion 112 is close to the side wall side of the inner container 110-3, the shape of the outer container 120 needs to be changed depending on it.

Next, it can be attached to the liquid inlet/outlet portion 112 of the 60-liter inner bag composite container 100 configured as described above, and the chemical liquid discharge pipe for discharging the chemical liquid contained in the inner container 110 to the outside of the container, see Fig. 9. As explained below.

The chemical liquid discharge pipe 150 is made of a resin which is flexible and resistant to liquid, and is formed of, for example, Teflon (registered trademark), for example, having a diameter of about 8 mm, and has a length at the front end of the liquid inlet/outlet portion 112 in the container. The liquid suction port 151 is in contact with the bottom portion 111b of the inner container 110 that is in contact with the bottom plate 122, and the liquid suction port 151 is located to the extent of the central portion of the bottom plate 122 of the 60-liter inner bag composite container 100. Further, in the present embodiment, as shown in the drawing, the liquid suction port 151 has a cross section which is obliquely intersected with respect to the axial direction of the chemical liquid discharge pipe 150 in the radial direction of the chemical liquid discharge pipe 150. Further, the cross section of the liquid suction port 151 may be formed as only a part of the diameter direction of the chemical liquid discharge pipe 150, or may be cut obliquely at a plurality of places.

Further, the chemical liquid discharge pipe 150 is attached to the front end portion 152 near the liquid suction port 151, and has a bottom plate 122 which is pressurized by the container for discharging the chemical liquid, and which is moved by gravity to the bottom plate 122 toward the outside of the container. The deformed portion 129 is aligned with the weight 153. The weight 153 is made of a metal material that does not chemically react with the chemical solution contained in the container. For example, a member that can be fitted into the through hole of the chemical liquid discharge pipe 150 is formed in a central portion of the square or circular plate material, or The cylindrical member is formed and held by the distal end portion 152 by the elastic force of the chemical discharge tube 150. Further, the shape and the mounting position of the weight 153 are selected by attaching the weight 153, and as a result, the liquid suction port 151 is not selected from the thickness of the weight 153 from the bottom portion 111b of the inner container 110. As an example, in the present embodiment, the weight 153 has a cylindrical shape, and the chemical liquid discharge pipe 150 is inserted into the inner diameter portion, and is attached to the vicinity of the liquid suction port 151. Further, the weight of the weight 153 is preferably about 55 to 65 g, and is 60 g in the present embodiment.

The other end of the chemical discharge pipe 150 opposite to the front end portion 152 is, for example, connected to the dispenser mechanism 200 shown in Fig. 9. The dispenser mechanism 200 is a mechanism for discharging the chemical liquid contained in the inner container 110 to the outside of the container, and is shown in Fig. 9 by extruding an inert gas such as nitrogen gas into the 60 liter inner bag composite container 100. The composition of the pressurized method of the chemical liquid. It is also possible to use a pump suction method in which a liquid is extracted by a suction device such as a pump.

The pressurizing type dispenser mechanism 200 is roughly divided into a cylindrical plug body 201, a gas supply device 202 for supplying pressurized inert gas into the inner container 110, and the above-described chemical liquid discharge pipe 150.

The plug body 201 is a resin plug that is attached to the liquid inlet/outlet portion 112 after the lid body 115 is removed, and is composed of an annular cover 201r, an annular spacer 201s, and a seal ring 2012. The annular cover 201r is a cylindrical member, and has a circular opening at one end, and a female thread 2011 that engages with the screw thread 1122 formed by the liquid inlet/outlet portion 112 is formed on the inner circumferential surface of the opening. Therefore, the annular cover 201r of the plug body 201 can be screwed to the cover thread 1122 of the liquid inlet/outlet portion 112, and a roller pattern is formed on the outer circumference of the annular cover 201r, and the plug body 201 can be surely screwed. At the liquid inlet and outlet portion 112.

Further, the other end of the annular cover 201r is also opened in a circular shape, and an annular spacer 201s is rotatably fitted to the annular cover 201r at the opening. In other words, the annular spacer 201s is a disk-shaped member that forms a flange, and is inserted into one end side opening of the annular cover 201r, and the flange abuts against the annular cover 201r and is fitted to the other end of the annular cover 201r. Opening. Moreover, the seal ring 2012 is attached to the annular cover 201r, and the annular cover 201r is screwed to the cover thread 1122 of the liquid inlet/outlet portion 112 as described above, and the seal ring 2012 is the mouth portion 112b of the seal liquid inlet/outlet portion 112. And the above-mentioned flange of the annular spacer 201s is sandwiched between the seal ring 2012 and the annular cover 201r. Thereby, the seal ring 2012 also seals the airflow at the boundary between the annular cover 201r and the annular spacer 201s.

In the annular spacer 201s, a first joint 203 made of synthetic resin that detachably fixes the other end of the chemical discharge pipe 150 and a second joint 204 for connecting the gas supply device 202 are screwed.

The first joint 203 can be slidably held in the axial direction of the chemical discharge tube 150 with respect to the plug body 201 by a commercially available straight support member, and can be fixed by locking the nut. Therefore, the length and position adjustment can be performed using the first joint 203, so that the liquid suction port 151 of the chemical discharge pipe 150 is located at the central portion of the bottom plate 122 as described above.

The second joint 204 is an L-shaped (bent-shaped) synthetic resin joint that is connected to the opening 2013 of the annular cover 201r of the plug body 201, and a commercially available curved quick joint can be used.

By connecting the hose connected to the gas supply device 202 to the second joint 204, the gas supply device 202 can supply the pressurized inert gas to the inside of the inner container 110.

By using the dispenser mechanism 200 configured as above, the inside of the inner container 110 can be pressurized by the gas supply device 202 to a range of, for example, about 100 kPa to about 150 kPa, and the liquid medicine contained in the inner container 110 can be passed through the medicine. The liquid discharge pipe 150 is extruded and discharged toward the outside of the container.

Further, when the chemical solution is discharged to the outside of the container by the dispenser mechanism 200, the tilting table described below, in which the 60-liter inner bag composite container 100 is placed, can be used.

That is, the tilting table 250 shown in FIG. 10 includes a main body 251 and a pair of falling prevention columns 252. The body 251 is formed of a metal plate such as a stainless steel plate, and is formed with a slope 251a inclined by about 10 to 15 degrees with respect to the ground surface. The 60-liter inner bag composite container 100 is placed on the inclined surface 251a, and the liquid inlet/outlet portion 112 of the 60-liter inner bag composite container 100 is aligned on the lower side of the inclined surface 251a. Here, when the inclination angle exceeds 15 degrees, the possibility of occurrence of liquid discharge becomes high, which is not preferable.

Further, the pair of fall prevention columns 252 are formed of a metal round bar such as stainless steel, and are erected on the lower side of the inclined surface 251a.

By using the tilting table 250 described above, the liquid inlet/outlet portion 112 is aligned to the lower side, and the 60-liter inner bag composite container 100 is tilted, whereby the liquid medicine in the inner container 110 can be collected in the liquid inlet and outlet portion when the liquid medicine is discharged. On the 112 side, the amount of the residual liquid can be reduced by the interaction with the above-described chemical liquid discharge pipe 150 in which the weight 153 is provided.

Industrial availability

The present invention is applicable to an inner bag composite container having a capacity of 60 liters in a resin inner container and a chemical liquid discharge pipe for the 60 liter inner bag composite container.

1. . . Inner container

1a. . . Body part

1b. . . Entrance and exit

2. . . Outer container

2a. . . Carcass

2b. . . Bottom plate

2c. . . roof

3. . . Cover

10. . . Inner bag composite container

100. . . 60 liter inner bag composite container

101. . . Upper end

108. . . Liquid

110, 110-1, 110-2, 110-3. . . Inner container

111. . . Body part

111a. . . Top surface

111b. . . bottom

112. . . Liquid inlet and outlet

112a. . . Axis direction

112b. . . mouth

113. . . Spreader

113a. . . Male thread

113b. . . Peripheral part

114. . . Internal plug

115. . . Cover

120. . . Outer container

120a. . . Storage department

121. . . Carcass

121a. . . Belt

122. . . Bottom plate

123. . . roof

123a. . . Oral opening

123b. . . Concave

123c. . . region

123d. . . Bevel

124. . . handle

129. . . Deformed part

130. . . Concave

130a, 130b, 130c. . . Corner

131, 132. . . Bevel

135. . . Concave

150. . . Liquid discharge tube

151. . . Liquid suction port

152. . . Front end part

153. . . Heavy object

200. . . Dispenser mechanism

201. . . Plug body

201r. . . Ring cover

201s. . . Annular spacer

202. . . Gas supply device

203. . . First joint

204. . . Second joint

250. . . Inclined table

251. . . Ontology

251a. . . Bevel

252. . . Overturn prevention column

1121. . . Keep thread

1122. . . Cover thread

2011. . . Female thread

2012. . . Sealing ring

2013. . . Opening

R. . . Arc

Fig. 1 is a partial cross-sectional view showing the structure of a 60 liter inner bag composite container in an embodiment of the present invention.

Figure 2 is a plan view of the 60 liter inner bag composite container shown in Figure 1.

Fig. 3 is a perspective view of the 60 liter inner bag composite container shown in Fig. 1.

Fig. 4 is a cross-sectional view showing the liquid inlet and outlet portion of the inner container of the 60 liter inner bag composite container shown in Fig. 1.

Fig. 5 is a view showing the state of the residual liquid when the 60 liter inner bag composite container shown in Fig. 1 is inverted and discharged.

Fig. 6 is a view showing an example of a modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, (A) is a plan view, and (B) is a side view of the arrow B. ) The arrow is viewed from the side view of C.

Fig. 7 is a view showing another modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, (A) is a plan view, and (B) is a side view.

Fig. 8 is a view showing another modification of the inner container provided in the 60 liter inner bag composite container shown in Fig. 1, wherein (A) is a plan view and (B) is a side view.

Fig. 9 is a view showing a chemical discharge pipe and a disperser mechanism which can be attached to the 60 liter inner bag composite container shown in Fig. 1.

Fig. 10 is a perspective view showing a tilting table which can be applied to the 60 liter inner bag composite container shown in Fig. 1.

Figure 11 is a diagram showing the construction of a prior 20 liter inner bag composite container.

100. . . 60 liter inner bag composite container

101. . . Upper end

110. . . Inner container

111. . . Body part

111a. . . Top surface

112. . . Liquid inlet and outlet

112a. . . Axis direction

113. . . Spreader

115. . . Cover

120. . . Outer container

120a. . . Storage department

121. . . Carcass

121a. . . Belt

122. . . Bottom plate

123. . . roof

123b. . . Concave

123d. . . Bevel

1121. . . Keep thread

1122. . . Cover thread

Claims (4)

A 60-liter inner bag composite container, comprising: a built-in container, made of a resin, and containing a chemical liquid requiring high-definition clarity, having a storage capacity of 60 liters, and a liquid inlet and outlet portion on the top surface; The container is made of steel, and the inner container is housed on the inner surface of the accommodating portion formed by winding the bottom plate with the cylindrical body, and the top plate of the opening for opening the liquid inlet and outlet portion is formed. The dome is formed by being wound around the body, wherein the top plate is attached to the periphery of the opening for the mouth, and a recess is formed from the opening for the mouth to a region beyond the center of the top plate. The 60 liter inner bag composite container according to the first aspect of the invention, wherein the liquid inlet and outlet portion of the inner container is attached to a peripheral surface of the liquid inlet and outlet portion, and is concentrically along an axial direction of the liquid inlet and outlet portion. The second stage has a thread for holding and a thread for the lid; the thread for holding is formed close to the top surface, and has a diameter through the opening for the mouth portion of the outer container, and is screwed to hold the liquid inlet and outlet portion The thread of the spreader of the top plate; the screw for the cover is formed by a thread that is formed away from the top surface and has a smaller diameter than the retaining thread and that is screwed to close the mouth of the liquid inlet and outlet. The 60 liter inner bag composite container according to the first aspect of the patent application, wherein the outer container is formed by an electrogalvanized steel sheet which can be omitted from coating, and the liquid medicine is used in at least one of a semiconductor field and a liquid crystal field. The liquid, the above-mentioned internal container is made of a high-density polyethylene resin of a chemical liquid specification, and is blow-molded under high-quality management. A liquid medicine discharge pipe characterized in that it can be installed in a liquid inlet and outlet portion of a built-in container provided in a 60-liter inner bag composite container of the first application of the patent scope, and the liquid medicine contained in the inner container is a chemical liquid discharge pipe for the above-mentioned 60 liter inner bag composite container discharged from the outside of the container; it is made of a flexible and liquid-resistant resin, and has a container for discharging the liquid in the vicinity of the liquid suction port. Pressurizing the weight to which the liquid suction port is directed toward the deformed portion of the bottom plate of the 60 liter inner bag composite container.