EP2734452B1 - Container for liquid chemicals - Google Patents

Description

The invention relates to a container for liquid chemicals with a cylindrical shell, an upper arched bottom and a lower arched bottom and a container inflow and a container outflow.

EP 0 338 573 relates to a safety container for hazardous and / or valuable chemical products, in particular in liquid form, wherein the container is fixedly arranged on a pallet, which facilitates handling. In order to provide a container which can be easily manufactured and optionally pressure-resistant, the container is cylindrical and provided with an upper and a lower arched bottom. In order to achieve the stackability and optionally to provide for the mechanical protection of the container against forces from outside, receptacles for the container are available at the corner regions of the pallet. To fill the container, a lid must be unscrewed and the container is emptied at its bottom, complicating the handling and handling of the container. In addition, a safe and trouble-free emptying of the container is not ensured when the container is moved. Also, the fact that the container must be mounted on a pallet for its protection makes the use of the container difficult.

DE 10 2007 050573 A1 concerns an empty container for receiving air- and / or moisture-sensitive compounds, with a connection unit and an internal volume of at least 300 liters, as well as adapters for connecting the empty container and its use. The connection unit of the empty container is associated with a multi-way system with two or more shut-off devices.

GB 500,608 A discloses a transportable fluid container having an outer shell and an inner liner spaced therefrom to form a closed one To form a chamber in between. All areas of the chamber communicate with each other. Means are provided for supplying fluid, such as coolant, to the chamber in a region thereof, and means are also provided for venting the fluid from the chamber in a region spaced from the former.

The invention has for its object to provide a container for liquid chemicals, in which the liquid chemicals can be transported safely and from the liquid chemicals can be easily, safely and smoothly conveyed out even if the container is not vertical or is moved.

For this purpose, the liquid chemical container according to the invention is provided with a cylindrical container shell, an upper curved bottom and a lower curved bottom and a container inflow and a container outflow, wherein the container inflow and the container outflow are arranged on the upper convex bottom of the container, and a removal tube is provided extending from the container drain to the lower domed floor, with an outer jacket surrounding the container jacket surrounding the container jacket, and the outer jacket forming a closed space with the container jacket provided with an inflow and outflow nozzle is provided and wherein the outer jacket is cylindrical; characterized in that the outer jacket is welded at the top and bottom with half tubes and is welded to the container shell over the half tubes.

By the container according to the invention a simple and safe operation is ensured because inflow and outflow to and from the container can follow from its top and the fact that the sampling tube extends to the bottom of the container, ensures safe emptying of the container even if the container does not stand or move vertically. The outer jacket initially serves as additional protection for the container against mechanical effects from the outside. If the room is filled with a chemical diluent, such as water, during transportation, another safety precaution will be taken if the chemical leaks out of the container. In addition, the closed space can be filled with coolant, so that cooling of the chemical in the container is ensured both during storage and during filling or emptying. By the outer jacket is cylindrical, is verscheißt above and below with half-tubes and on the Semi-tubes is welded to the container shell, a tension-free attachment of the outer shell is ensured on the container shell.

An advantageous embodiment of the container according to the invention, characterized in that at the bottom arched bottom centered outwardly convex bottom bowl is provided, and that the sampling tube extends into the bottom bowl. Since the residual liquid of the chemicals collect practically "to the last drop" in the bottom bowl, an almost complete removal of the chemical from the container can be ensured.

A further advantageous embodiment of the container according to the invention is characterized in that the bottom cup is welded to the lower arched bottom, the bottom cup is then virtually integral part of the container, which contributes to its stability.

A further advantageous embodiment of the container according to the invention is characterized in that above the bottom cup, a lower bottom cup guard is provided which covers the bottom cup. The ground cup guard serves on the one hand to protect the bottom bowl and the container on its underside. On the other hand, the bottom cup guard forms an anchoring possibility of the container in a suitably prepared receptacle, for example, a ring that receives the bottom guard or three or more guide parts that engage the bottom cup guard when the container is thus inserted into the anchorage.

A further advantageous embodiment of the container according to the invention is characterized in that the bottom cup protective hood is welded to the lower arched bottom, in turn, the stability of the protective cover and also the protection for the container can be increased.

A further advantageous embodiment of the container according to the invention is characterized in that the inflow nozzle is provided at a lower portion of the outer shell and the outlet nozzle at an upper portion of the outer shell. When the space between the outer shell and the container jacket is filled with liquid, this liquid flows advantageously from bottom to top, which allows a uniform filling. If the room is to be emptied, the emptying can also serve through the inflow pipe at the bottom of the container.

Further advantages, features and possible applications of the present invention will become apparent from the following description in conjunction with the embodiments illustrated in the drawings.

Fig. 1

zeigt einen Vertikalschnitt durch den erfindungsgemäßen Behälter;

Fig. 2

zeigt eine Draufsicht auf die Oberseite des Behälters von Fig. 1;

Fig. 3

zeigt die Laschenverbindung zwischen der Schutzhaube und dem Behälter;

Fig. 4

zeigt eine Seitenansicht des erfindungsgemäßen Behälters von Fig. 1, und

Fig. 5

zeigt eine perspektivische Darstellung des Behälters nach den Figs. 1 bis 4.

In the description, the claims, and the drawing, the terms and associated reference numerals used in the list of reference numerals below are used. In the drawing:

Fig. 1

shows a vertical section through the container according to the invention;

Fig. 2

shows a plan view of the top of the container of Fig. 1 ;

Fig. 3

shows the tab connection between the guard and the container;

Fig. 4

shows a side view of the container according to the invention of Fig. 1 , and

Fig. 5

shows a perspective view of the container after the Figs. 1 to 4 ,

The container 2 after Fig. 1 consists of metal and comprises a cylindrical shell 4, which is welded at the top with a curved bottom 6 and below with a curved bottom 8.

The lower arched bottom 8 has a central, circular opening 10, in which a further cylindrical casing neck 12 is welded, which in turn is closed by a welded curved bottom 14. The nozzle 12 and the bottom 14 form a bottom cup 16, in which collect the remains of the liquid chemical when emptying the container. This embodiment is of particular advantage when the container 2 is not in a completely vertical position during the emptying process.

The bottom cup 16 consisting of the casing neck 12 and the bottom 14 is protected against external mechanical damage by a protective cover 18, which consists of a welded to the curved bottom 8 casing nozzle 20 and a curved bottom 22, which is welded to the nozzle piece 20.

The cylindrical container shell 4 is protected against external mechanical damage by an outer jacket 24. The outer jacket 24 is welded to ring half pipes 26 and 28. The ring half pipe 26 is welded to the upper arched bottom 6. The ring half pipe 28 is welded to the lower arched bottom 8. Due to the formation of the ring half pipes 26 and 28, the outer shell 24 sits stress-free on the container. 2

The ring half tubes 26 and 28 further protect the upper and lower domed bottoms 6 and 8 against external mechanical damage.

On the ring half pipe 26, a threaded sleeve is welded as a liquid drain 30, to which a hose or pipe can be connected. On the ring half pipe 28, a threaded sleeve is welded as a liquid inlet 32, to which a hose or a pipe can be connected.

The container 2 has eccentrically to its center axis to a discharge line 34 made of metal. At the bottom of the extraction line 34, a pipe section 36 is welded obliquely. The pipe section 36 extends almost to the bottom arched bottom 14 of the bottom cup 16th

Above the extraction line 34 is hydraulically connected to the pipe socket 38. The pipe socket 38 is welded into the upper arched bottom 6. At the pipe socket 38, a valve 40 is welded. Preferably, the valve 40 has no gland, but has a liquid-tight bellows. To the valve 40, a pipe flange 42 is welded, thereby forming a first fitting, through which a releasable hydraulic connection of the container 2 can be effected with other apparatus.

The container 2 has a support ring 44, which consists of a circularly curved tube ring whose outer diameter Ring corresponds to the outer diameter of the cylindrical outer shell 24. The support ring 44 is connected to the upper arched bottom 6 by at least two brackets. In Fig. 1 a holder 46 is visible. Out Fig. 2 two more brackets than 52 and 54 can be seen.

The container 2 has to protect the Flanschstutzen and fittings on an upper guard 48, which is connected to at least two releasable tabs 50 with the upper ring half-tube 26. At the point of removal, the fastening nut 68 is released on each tab connection, whereby the upper protection 48 can be easily removed and the access to the flange 42 is free.

The details of the tab connection 50 are Fig. 3 refer to. Thereafter, the tab connection consists of a plate angle 62, which is welded onto the ring half-tube 26, and from the eyelet 64, which is welded onto the outer wall of the upper protective cover 48. During transport of the container, the plate angle 62 and eyelet 64 are fixed to each other by the welded on the plate angle 62 threaded connector 66 and by means of the fastening nut 68.

On the upper arched bottom 6 of the container 2, a second fitting is mounted, whereby the filling of the container is facilitated. How out Fig. 4 can be seen, the fitting consists of a connecting flange 58, on which the valve 56 is welded. The valve 56 is glandless and designed as a bellows. The valve 56 is as out Fig. 4 can be seen hydraulically connected to welded into the upper arched bottom 6 pipe socket 60.

Fig. 5 shows in perspective the arrangement of the valves 40 and 56 and the flanges 42 and 58 on the upper curved bottom 6 of the container. 2

LIST OF REFERENCE NUMBERS

2

container

4

Cylindrical container casing

6

Upper arched bottom of the tank

8th

Bottom arched bottom of the tank

10

opening

12

Cylindrical coat of ground bowl

14

Arched bottom of the ground bowl

16

Bodennapf

18

guard

20

Sheath of the lower protective cover

22

Arched bottom of the lower guard

24

Cylindrical outer jacket

26

Upper ring half tube for outer jacket

28

Lower ring half pipe for outer jacket

30

drain socket

32

supply connection

34

Production tubing

36

pipe section

38

pipe socket

40

Valve

42

flange

44

support ring

46

Holder for carrying ring

48

Upper protective hood

50

detachable tab connection

52

Holder for carrying ring

54

Holder for carrying ring

56

Valve

58

flange

60

pipe socket

62

Blechwinkel

64

eyelet

66

threaded connector

68

nut

Claims (6)

1. Container for liquid chemicals comprising a cylindrical container shell (4), an upper curved base (6) and a lower curved base (8) and also a container inflow (58, 60) and a container outflow (38, 42), wherein the container inflow (58, 60) and the container outflow (38, 42), are arranged at the upper curved base (6) of the container, and in that a drainage tube (34) is provided which extends from the container outflow (38, 42) to the lower curved base (8), wherein
   around the container shell (4), an outer shell (24) is provided which surrounds the container shell (4) with a distance, wherein
   the outer shell (24) together with the container shell (4), forms a closed space which is provided with an inflow stub (32) and an outflow stub (30), and wherein
   the outer shell (24) is formed in a cylindrical design,
   characterized in that
   the outer shell (24) is welded at the upper side and the lower side with tube halves (26 or 28) and is welded with the container shell (4) through the tube halves (26 or 28).
2. Container according to claim 1, characterized in that, at the lower curved base (8), a bottom cup (16) curved to the outside is provided centrally and that the drainage tube reaches to the bottom cup (16).
3. Container according to claim 2, characterized in that the bottom cup (16) is welded to the lower curved base (8).
4. Container according to claim 2, characterized in that, over the bottom cup (16), a lower bottom cup protective cover (18) is provided which covers the bottom cup (16).
5. Container according to claim 4, characterized in that the bottom cup protective cover (18) is welded to the lower curved base (8).
6. Container according to claim 1, characterized in that the inflow stub (32) is provided at a lower area of the outer shell and the outflow stub (30) is provided at an upper area of the outer shell.

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