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AU2016261000A1 - Reactor tank and mixing apparatus - Google Patents

Reactor tank and mixing apparatus Download PDF

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Publication number
AU2016261000A1
AU2016261000A1 AU2016261000A AU2016261000A AU2016261000A1 AU 2016261000 A1 AU2016261000 A1 AU 2016261000A1 AU 2016261000 A AU2016261000 A AU 2016261000A AU 2016261000 A AU2016261000 A AU 2016261000A AU 2016261000 A1 AU2016261000 A1 AU 2016261000A1
Authority
AU
Australia
Prior art keywords
side wall
plane side
reactor tank
wall
end wall
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
AU2016261000A
Other versions
AU2016261000A2 (en
Inventor
Henri Fredriksson
Tuomas Hirsi
Marko Latva-Kokko
Teemu Ritasalo
Rami Saario
Ville STRÖMMER
Manu VESANEN
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Outotec Finland Oy
Original Assignee
Outotec Finland Oy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Outotec Finland Oy filed Critical Outotec Finland Oy
Publication of AU2016261000A1 publication Critical patent/AU2016261000A1/en
Publication of AU2016261000A2 publication Critical patent/AU2016261000A2/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D88/00—Large containers
    • B65D88/02—Large containers rigid
    • B65D88/12—Large containers rigid specially adapted for transport
    • B65D88/121—ISO containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/18—Stationary reactors having moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
    • B01F27/191—Stirrers with two or more mixing elements mounted in sequence on the same axis with similar elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/91—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with propellers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/53—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components
    • B01F35/531—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom
    • B01F35/5312—Mixing receptacles characterised by the configuration of the interior, e.g. baffles for facilitating the mixing of components with baffles, plates or bars on the wall or the bottom with vertical baffles mounted on the walls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/006—Baffles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0066—Stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/24—Stationary reactors without moving elements inside
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J2219/00761—Details of the reactor
    • B01J2219/00763—Baffles
    • B01J2219/00765—Baffles attached to the reactor wall
    • B01J2219/00768—Baffles attached to the reactor wall vertical

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

The invention relates to a reactor tank comprising a tank shell and a framework structure for supporting the tank shell. The framework structure consisting of a first end frame means (7) at a first end (2) of a central shell (1) of the tank shell and of a second end frame means (8) at a second end (3) of the central shell (1) of the tank shell. A first end wall (4) and a second end wall (5) of the tank shell are formed of a plane plate and extending transversely of the central longitudinal axis A of the central shell (1). The first end wall (4) is attached to the first end frame means (7) and so that the second end wall (5) is attached to the second end frame means (8). The invention relates also to a mixing apparatus.

Description

REACTOR TANK AND MIXING APPARATUS
Field of the invention
The invention relates to a reactor tank as defined in the preamble of independent claim 1. The invention also relates to a mixing apparatus as defined in claim 26.
Reactor tanks of metal are difficult and expensive to manufacture because of the complex structure and the high number of part that need to be welded together. Quality of the welds is difficult to control due to the complex structure and the large amount of welds. The high number of parts also leads to a heavy structure, which is a disadvantage especially if the reactor tank is built in a factory and transported to the site, where the reactor tank is to be used.
Objective of the invention
The object of the invention is to provide a reactor tank that can be manufactured from a low number of parts and that therefore solves the above-identified problems.
Short description of the invention
The reactor tank of the invention is characterized by the definitions of independent claim 1.
Preferred embodiments of the reactor tank are defined in the dependent claims 2 to 25. The mixing apparatus of the invention is correspondingly characterized by the definitions of claim 26.
Preferred embodiments of the mixing apparatus are defined in the dependent claims 27 to 32.
The invention is based on using the stiffness of the tank shell of the reactor tank to minimize the number of parts in the framework structure of the reactor tank for supporting the tank shell and to make the tank shell as a simple construction. A low number of parts results in a reduced number of welds.
Because the framework structure of the reactor tank is of simple construction and consists only of a first frame means at the first end of the central shell of the tank shell and of a second frame means at the second end of the central shell of the tank shell, weight is saved and manufacturing is simplified. A simple framework structure results in a reduced number of welds.
Because the first end wall and the second end wall of the tank shell of the reactor tank are formed of plane plate part, the first end wall and the second end wall are of simple construction, which means weight savings and makes the manufacturing easy.
The reactor tank has preferably, but not necessarily, the outer dimensions of a 20' or a 40' shipping container as set forth in standard ISO 668 Series 1 “Freight containers - Classification, dimensions and ratings”.
List of figures
In the following the invention will described in more detail by referring to the figures, of which
Figure 1 shows a reactor tank according to a first embodiment of the invention,
Figure 2 shows the reactor tank shown in figure 1 in cut view as cut along the central longitudinal axis of the central shell,
Figure 3 shows a mixing apparatus according to a first embodiment comprising a reactor tank as shown in figure 1,
Figure 4 shows the mixing apparatus shown in figure 3 in cut view as cut transversely to the central longitudinal axis of the central shell,
Figure 5 shows the mixing apparatus shown in figure 3 in cut view as cut along to the central longitudinal axis of the central shell,
Figure 6 shows the mixing apparatus shown in figure 3 in cut view as cut transversely to the central longitudinal axis of the central shell,
Figure 7 shows a mixing apparatus according to a second embodiment of the invention,
Figure 8 shows the mixing apparatus shown in figure 7 in cut view as cut along line B-B in figure 9,
Figure 9 shows the mixing apparatus shown in figure 7 in cut view as cut along line A-A in figure 8,
Figure 10 shows a mixing apparatus according to a third embodiment of the invention in a state, where the agitating means are in a transporting position,
Figure 11 shows the mixing apparatus shown in figure 10 in cut view as cut along line A-A in figure 12,
Figure 12 shows the mixing apparatus shown in figure 10 as seen from one end,
Figure 13 shows a mixing apparatus shown in figure 10 in a state, where the agitating means are in an operating position,
Figure 14 shows the mixing apparatus shown in figure 13 in cut view as cut along line B-B in figure 15, and
Figure 15 shows the mixing apparatus shown in figure 13 as cut along line C-C in figure 13.
Detailed description of the invention
The reactor tank comprises a tank shell 34 comprising a central shell 1 defining a central longitudinal axis A and having a first end 2 and a second end 3, a first end wall 4 closing the first end 2 of the central shell 1 and a second end wall 5 closing the second end 3 of the central shell 1, and an inner space 6 limited by the central shell 1, the first end wall 4 and the second end wall 5.
The reactor tank comprises a framework structure (not marked with a reference numeral) for supporting the tank shell 34, wherein the framework structure consisting of a first end frame means 7 at the first end 2 of the central shell 1 and of a second end frame means 8 at the second end 3 of the central shell 1. Each of the first end frame means 7 and the second end frame means 8 comprising four beams 9 forming a rectangular structure having a corner fitting 10 preferably, but not necessarily, configured to cooperate with a twist locks means (not shown in the figures) at each corner of the rectangular structure so that the reactor tank can be transported in the same way as an intermodal shipping container. The first end frame means 7 and the second end frame means 8 extend transversely of the central longitudinal axis A of the central shell 1.
Each of the first end wall 4 and the second end wall 5 are formed of a plane plate having preferably, but not necessarily, rectangular form and extending transversely of the central longitudinal axis A of the central shell 1.
The first end frame means 7 forms a supporting means for the first end wall 4, and the second end frame means 8 forms a supporting means for the second end wall 5, so that the first end wall 4 is attached to the first end frame means 7, preferably, but not necessarily, to the rectangular structure of the first end frame means 7, as shown in the figures, and so that the second end wall 5 is attached to the second end frame means 8, preferably, but not necessarily, to the rectangular structure of the second end frame means 8, as shown in the figures.
In the reactor tank shown in figures 1 and 2, the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel. Alternatively, the central shell 1 could be in the form of a cylinder.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, the first plane side wall 11, the second plane side wall 12, the third plane side wall 13 and the fourth plane side wall 14 may have equal rectangular outer dimensions.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, the first plane side wall 11 can be joined to the third plane side wall 13 by a first convex curved edge 15 extending between the first end wall 4 and the second end wall 5 and to the fourth plane side wall 14 by a second convex curved edge 16 extending between the first end wall 4 and the fourth end wall, and the second plane side wall 12 can be joined to the third plane side wall 13 by a third convex curved edge 17 extending between the first end wall 4 and the second end wall 5 and to the fourth plane side wall 14 by a fourth convex curved edge 18 extending between the first end wall 4 and the fourth end wall. In such embodiment of the reactor tank, the radius R of at least one of the first convex curved edge 15, the second convex curved edge 16, the third convex curved edge 17, and the fourth convex curved edge 18 being between 0.05W and 0.5W, preferably between 0.1W and 0.3W, more preferably between 0.14W and 0.24W, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12. In such embodiment of the reactor tank, the first convex curved edge 15, the second convex curved edge 16, the third convex curved edge 17, and the fourth convex curved edge 18 may have equal outer dimensions. Alternatively the first plane side wall 11 could be joined at a straight angle i.e. without any curved edge to the third plane side wall 13 and the fourth plane side wall 14 and the second plane side wall 12 could be joined at a straight angle i.e. without any curved edge to the third plane side wall 13 and the fourth plane side wall 14. Each of the first convex curved edge 15, the second convex curved edge 16, the third convex curved edge 17, and the fourth convex curved edge 18 are preferably, but not necessarily, non-corrugated as shown in the figures, because corrugations walls disturbs mixing if the reactor tank is to be used as a part of a mixing apparatus.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, the distance between the first end wall 4 and the second end wall 5 may be between 1.3W and 9 W preferably between 2.5 W and 7W, more preferable between 2.7W and 5.6W, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, the first plane side wall 11 may be provided with a first outlet opening 19. The first outlet opening 19 may be arranged closer to the first end wall 4 than to the second end wall 5.The reactor tank may comprise an outlet channel 28 in fluid connection with the first outlet opening 19 provided in the central shell 1 for leading fluid from the inside of the mixing tank to the first outlet opening 19 provided in the central shell 1. The first outlet opening 19 may be arranged between 0.1W and 0.5W, preferably between 0.2W and 0.3W from the first end wall 4 where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12. The outlet channel 28 may extend in the direction of the central longitudinal axis A. The outlet channel 28 may have a first feed opening 29 located at a distance between 0.05W and 0.45W, preferably between 0.1W and 0.2W from the first end wall 4, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12. The outlet channel 28 may have a second feed opening 30 located at a distance between 0.25W and 3W, preferably between 1W and 2W from the second end wall 5, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, the first plane side wall 11 may be provided with a second outlet opening 20 that is arranged closer to the second end wall 5 than to the first end wall 4. In such embodiment, the second outlet opening 20 may be arranged between 0.05W and 0.2W preferably between 0.08W and 0.12W from the second end wall 5 where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
If the central shell 1 comprises a first plane side wall 11, a second plane side wall 12, a third plane side wall 13 and a fourth plane side wall 14 extending between the first end wall 4 and the second end wall 5, so that the first plane side wall 11 the second plane side wall 12 are parallel, and so that the third plane side wall 13 and the fourth plane side wall 14 are parallel, a baffle 35 may be arranged inside the reactor tank at an inner wall of the central shell 1 so that the baffle 35 extend at least partly between the first end wall 4 and the second end wall 5 in the direction of the central longitudinal axis A of the central shell 1, as shown in figure 8 and 9. The width of the baffle 35 may be between W/20 and W/8, preferably between W/12 and W/10 such as W/12, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
The first end wall 4 of the reactor tank may comprise a central opening 22 configured for example to receive an agitating apparatus 23 so that the agitating apparatus 23 is located partly inside the reactor tank and partly outside the reactor tank, and a supporting structure 24 for the agitating apparatus 23 surrounding the central opening 22 and fastened to the first end frame means 7 of the framework structure.
The first end wall 4 may comprise an inlet opening 21 that may be provided with a flange.
The reactor tank may comprise reinforcement members 31 fastened to an outer surface of the central shell 1 and at least partly surrounding the central shell 1.
The distance between the comer fittings 10 may correspond to the distance between the comer fitting 10 of a shipping container according to standard ISO 668 Series 1 “Freight containers - Classification, dimensions and ratings”, and the comer fittings may correspond to standard ISO 1161 Series 1 Freight containers - Comer fittings - specification”.
The first end wall 4 is preferably, but not necessarily, fastened to the first end 2 of the central shell 1 by welding, and the second end wall 5 is preferably, but not necessarily, fastened to the second end 3 of the central shell 1 by welding, and the first end frame means 7 is preferably, but not necessarily, fastened to the central shell 1 solely via of the first end wall 4, and the second end frame means 8 is preferably, but not necessarily, fastened to the central shell 1 solely via of the second end wall 5.
The central shell 1 can be provided with a manhole 33.
The reactor tank may be provided with anchoring means 36 for anchoring the reactor tank.
The first end frame means 7 are preferably, but not necessarily, connected to the second end frame means 8 solely by means of the central shell 1. This reduces weight and makes the construction of the reactor tank simple.
The central shell 1 is preferably, but not necessarily, rigid i.e. non-collapsible. This makes is easier to constmct of a reactor tank, where the first end frame means 7 is connected to the second end frame means 8 solely by means of the central shell 1.
The central shell 1 is preferably, but not necessarily, non-corrugated. A non-corrugated central shell 1 is of an advantage if the reactor tank is to be used as a part of a mixing apparatus, because corrugated walls disturbs mixing.
The invention relates also to a mixing apparatus comprising a reactor tank as described earlier.
In the mixing apparatus, the first end wall 4 of the tank shell 34 of the reactor tank forms a bottom of the mixing apparatus, the second end wall 5 of the tank shell 34 of the reactor tank forms a top of the mixing apparatus, and the central longitudinal axis A of the central shell 1 of the reactor tank is vertical. The mixing apparatus comprises an agitating apparatus 23 comprising a shaft 25 that in an operating position of the mixing apparatus is coaxial with the central longitudinal axis A of the central shell 1, a rotating means 32 for rotating the shaft 25, and a first impeller 26 fastened to the shaft 25.
The diameter D1 of the first impeller 26 is, between 0.2W and 0.6W, preferably between 0.3 and such as about 0.4W, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
In the mixing apparatus, the agitating apparatus 23 may comprise in addition to the first impeller 26, a second impeller 27 fastened to the shaft 25. The diameter D2 of the second impeller 27 is preferably, but not necessarily, between 0.3W and 0.5W, such as about 0.4W, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
If the agitating apparatus 23 of the mixing apparatus comprises a first impeller 26 fastened to the shaft 25 of the agitating apparatus 23 and a second impeller 27 fastened to the shaft 25 of the agitating apparatus 23, the first impeller 26 is preferably, but not necessarily, arranged at a distance between 0.2W and 0.48W, such 0.36W, as measured from the second end wall 5, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12, and the second impeller 27 is preferably, but not necessarily, arranged at a distance between 0.75W and 1.75W, such as 1.26W, as measured from the second end wall 5, where W is the distance between the first plane side wall 11 and the second plane side wall 12 as measured perpendicularly between the first plane side wall 11 and the second plane side wall 12.
The agitating apparatus 23 may, as shown in figures 10 to 15, be releasably attached to the reactor tank in said operating position. In such case, the agitating apparatus 23 is preferably, but not necessarily, additionally configured to be releasably arranged in a transporting position in the inner space 6 of the reactor tank so that a distal end of the shaft 25 is releasably attached at a support 37 provided at the second end wall 5 of the tank shell and so that the agitating apparatus 23 is releasably attached to the first end wall 4 of the tank shell by means of attachment means 38 of the agitating apparatus 23, as shown in figures 10 to 12. In such case, the first end wall 4 of the reactor tank may comprise a central opening 22 that is configured to co-operate with the attachment means 38 of the agitating apparatus 23 so that the attachment means 38 are turnable with respect to the central longitudinal axis A of the central shell into (i) a first position enabling moving the attachment means 38 of the agitating apparatus 23 in the direction of the central longitudinal axis A of the central shell through the central opening 22 in the first end wall 4 of the reactor tank, and into (ii) a second position preventing moving the attachment means 38 of the agitating apparatus 23 in the direction of the central longitudinal axis A of the central shell through the central opening 22 in the first end wall 4 of the reactor tank. In the transporting position, the attachment means 38 of the agitating apparatus 23 are preferably in the second position. When the agitating apparatus 23 is moved from the transporting position to the operating position, the attachment means 38 are turned with respect to the central longitudinal axis A into the first position and the agitating apparatus 23 is moved partly out of the inner space 6 of the tank shell 34 through the central opening 22 in the first end wall 4 of the reactor tank so that the attachment means 38 are situated outside the inner space 6 of the tank shell 34 , where after the attachment means 38 are turned with respect to the central longitudinal axis A into the second position preventing the attachment means 38 from entering the inner space 6 of the tank shell 34. In the transporting position, the agitating means 23 can be transported inside the reactor tank as protected by the reactor tank as a unit, having the outer dimensions corresponding to the outer dimensions of a shipping container.
It is apparent to a person skilled in the art that as technology advanced, the basic idea of the invention can be implemented in various ways. The invention and its embodiments are therefore not restricted to the above examples, but they may vary within the scope of the claims.

Claims (32)

  1. Claims
    1. A reactor tank comprising a tank shell comprising a central shell (1) defining a central longitudinal axis A and having a first end (2) and a second end, a first end wall (4) closing the first end (2) of the central shell (1), a second end wall (5) closing the second end (3) of the central shell (1), and an inner space (6) limited by the central shell (1), the first end wall (4) and the second end wall (5), and a framework structure for supporting the tank shell, characterized by the framework structure consisting of a first end frame means (7) at the first end (2) of the central shell (1) and of a second end frame means (8) at the second end (3) of the central shell (1), wherein each of the first end frame means (7) and the second end frame means (8) comprising four beams (9) forming a rectangular structure having a comer fitting (10) at each corner and extending transversely of the central longitudinal axis A of the central shell (1), by the first end wall (4) and the second end wall (5) being formed of a plane plate and extending transversely of the central longitudinal axis A of the central shell (1), and by the first end frame means (7) forms a supporting means for the first end wall (4) and the second end frame means (8) forms a supporting means for the second end wall (5) so that the first end wall (4) is attached to the first end frame means (7) and so that the second end wall (5) is attached to the second end frame means (8).
  2. 2. The reactor tank according to claim 1, characterized by the central shell (1) comprising a first plane side wall (11), a second plane side wall (12), a third plane side wall (13) and a fourth plane side wall (14) extending between the first end wall (4) and the second end wall (5), by the first plane side wall (11) and the second plane side wall (12) being parallel, and by the third plane side wall (13) and the fourth plane side wall (14) being parallel.
  3. 3. The reactor tank according to claim 2, characterized by the first plane side wall (11), the second plane side wall (12), the third plane side wall (13) and the fourth plane side wall (14) having equal rectangular outer dimensions.
  4. 4. The reactor tank according to claim 2 or 3, characterized by the first plane side wall (11) being joined to the third plane side wall (13) by a first convex curved edge (15) extending between the first end wall (4) and the second end wall (5) and to the fourth plane side wall (14) by a second convex curved edge (16) extending between the first end wall (4) and the second end wall (5), and by the second plane side wall (12) being joined to the third plane side wall (13) by a third convex curved edge (17) extending between the first end wall (4) and the second end wall (5) and to the fourth plane side wall (14) by a fourth convex curved edge (18) extending between the first end wall (4) and the second end wall (5).
  5. 5. The reactor tank according to claim 4, characterized by the radius R of at least one of the first convex curved edge (15), the second convex curved edge (16), the third convex curved edge (17), and the fourth convex curved edge (18) being between 0.1W and 0.5W, where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  6. 6. The reactor tank according to claim 4 or 5, characterized by the first convex curved edge (15), the second convex curved edge (16), the third convex curved edge (17), and the fourth convex curved edge (18) having equal outer dimensions.
  7. 7. The reactor tank according to any of the claims 4 to 6, characterized by each of the first convex curved edge (15), the second convex curved edge (16), the third convex curved edge (17), and the fourth convex curved edge (18) being non-corrugated.
  8. 8. The reactor tank according to any of the claims 2 to 7, characterized by the distance between the first end wall (4) and the second end wall (5) being between 2.5W and 7W, preferable between 3.3W and 6.6W, where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  9. 9. The reactor tank according to any of the claims 2 to 8, characterized by the first plane side wall (11) being provided with a first outlet opening (19), by the first outlet opening (19) being arranged closer to the first end wall (4) than to the second end wall (5), and by an outlet channel (28) in fluid connection with the first outlet opening (19) provided in the central shell (1) for leading fluid from the inside of the mixing tank to the first outlet opening (19) provided in the central shell (1).
  10. 10. The reactor tank according to claim 9, characterized by the first outlet opening (19) being arranged between 0.1W and 0.5W from the first end wall (4) where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  11. 11. The reactor tank according to claim 9 or 10, characterized by the outlet channel (28) extending in the direction of the central longitudinal axis A.
  12. 12. The reactor tank according to any of the claims 8 to 11, characterized by the outlet channel (28) having a first feed opening (29) located at a distance between 0.1W and 0.5W from the first end wall (4), where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  13. 13. The reactor tank according to any of the claims 8 to 12, characterized by the outlet channel (28) having a second feed opening (30) located at a distance between 0.1W and 0.5W from the second end wall (5), where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  14. 14. The reactor tank according to any of the claims 2 to 13, characterized by the first plane side wall (11) being provided with a second outlet opening (20), and by the second outlet opening (20) being arranged closer to the second end wall (5) than to the first end wall (4).
  15. 15. The reactor tank according to claim 14, characterized by the second outlet opening (20) being arranged between 0.1W and 0.5W from the second end wall (5) where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  16. 16. The reactor tank according to any of the claims 2 to 15, characterized by a baffle (35) inside the reactor tank at an inner wall of the central shell (1) and extending at least partly between the first end wall (4) and the second end wall (5) in the direction of the central longitudinal axis A of the central shell (1).
  17. 17. The reactor tank according to claim 16, characterized by the width of the baffle (35) being between W/15 and W/10, such as W/12, where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  18. 18. The reactor tank according to any of the claims 1 to 17, characterized by the first end wall (4) of the reactor tank comprising a central opening (22), and by a supporting structure (24) surrounding the central opening (22) and fastened to the framework structure.
  19. 19. The reactor tank according to any of the claims 1 to 18, characterized by the first end wall (4) comprising an inlet opening (21).
  20. 20. The reactor tank according to any of the claims 1 to 19, characterized by reinforcement members (31) fastened to an outer surface of the central shell (1) and at least partly surrounding the central shell (1).
  21. 21. The reactor tank according to any of the claims 1 to 20, characterized by the distance between the corner fitting (10) corresponds to the distance between the comer fitting (10) of a shipping container according to standard ISO 668 Series 1 “Freight containers - Classification, dimensions and ratings”, and by the comer fittings (10) corresponds to standard ISO 1161 Series 1 Freight containers -Comer fittings - specification44.
  22. 22. The reactor tank according to any according to any of the claims 1 to 21, characterized by the first end wall (4) being fastened to the first end (2) of the central shell (1) by welding, by the second end wall (5) being fastened to the second end (3) of the central shell (1) by welding, by the first end frame means (7) being fastened to the central shell (1) solely via of the first end wall (4), and by the second end frame means (8) being fastened to the central shell (1) solely via of the second end wall (5).
  23. 23. The reactor tank according to any according to any of the claims 1 to 22, characterized by the first end frame means (7) being connected to the second end frame means (8) solely by means of the central shell (1).
  24. 24. The reactor tank according to any according to any of the claims 1 to 23, characterized by the central shell (1) being rigid.
  25. 25. The reactor tank according to any according to any of the claims 1 to 24, characterized by the central shell (1) being non-corrugated.
  26. 26. A mixing apparatus comprising a reactor tank according to any of the claims 1 to 25, characterized by the first end wall (4) of the tank shell (34) of the reactor tank forming a top of the mixing apparatus, by the second end wall (5) of the tank shell (34) of the reactor tank forming a bottom of the mixing apparatus, by the central longitudinal axis A of the central shell (1) being vertical, and by an agitating apparatus (23) comprising a shaft (25) that in an operating position of the mixing apparatus is coaxial with the central longitudinal axis A of the central shell (1), a rotating means (32) for rotating the shaft (25), and a first impeller (26) fastened to the shaft (25).
  27. 27. The mixing apparatus according to claim 26, characterized by the diameter D1 of the first impeller (26) being between 0.3W and 0.5W, such as about 0.4W, where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  28. 28. The mixing apparatus according to claim 26 or 27, characterized by the agitating apparatus (23) comprising a second impeller (27) fastened to the shaft (25).
  29. 29. The mixing apparatus according to claim 28, characterized by the diameter D2 of the second impeller (27) being between 0.3W and 0.5W, such as about 0.4W, where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  30. 30. The mixing apparatus according to claim 28 or 29, characterized by the first impeller (26) being arranged at a distance between 0.2W and 0.48W, such 0.36W, as measured from the second end wall (5), where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12), and by the second impeller (27) being arranged at a distance between 0.75W and 1.75W, such as 1.26W, as measured from the second end wall (5), where W is the distance between the first plane side wall (11) and the second plane side wall (12) as measured perpendicularly between the first plane side wall (11) and the second plane side wall (12).
  31. 31. The mixing apparatus according to any of the claims 26 to 30, characterized by the agitating apparatus (23) being releasably attached to the reactor tank in said operating position, and by the agitating apparatus (23) being configured to be releasably arranged in a transporting position in the inner space (6) of the reactor tank so that a distal end of the shaft (25) is releasably attached to a support (37) provided at the second end wall (5) of the tank shell and so that the agitating apparatus (23) is releasable attached to the first end wall (4) of the tank shell by means of an attachment means (38) of the agitating apparatus (23).
  32. 32. The mixing apparatus according to claim 31, characterized by the first end wall (4) of the reactor tank comprising a central opening (22), and by the central opening (22) in the first end wall (4) of the reactor tank being configured to cooperate with the attachment means (38) of the agitating apparatus (23) so that the attachment means (38) are tumable with respect to the central longitudinal axis A of the central shell into (i) a first position enabling moving the attachment means (38) of the agitating apparatus (23) in the direction of the central longitudinal axis A of the central shell through the central opening (22) in the first end wall (4) of the reactor tank, and into (ii) a second position preventing moving the attachment means (38) of the agitating apparatus (23) in the direction of the central longitudinal axis A of the central shell through the central opening (22) in the first end wall (4) of the reactor tank.
AU2016261000A 2015-05-13 2016-05-12 Reactor tank and mixing apparatus Pending AU2016261000A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FI20155347A FI20155347A7 (en) 2015-05-13 2015-05-13 REACTOR TANK AND MIXING DEVICE
FI20155347 2015-05-13
PCT/FI2016/050312 WO2016181041A1 (en) 2015-05-13 2016-05-12 Reactor tank and mixing apparatus

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AU2016261000A1 true AU2016261000A1 (en) 2017-11-30
AU2016261000A2 AU2016261000A2 (en) 2017-12-14

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AU2016261000A Pending AU2016261000A1 (en) 2015-05-13 2016-05-12 Reactor tank and mixing apparatus

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CN (1) CN208436404U (en)
AU (2) AU2016102360A4 (en)
CL (1) CL2017002862U1 (en)
FI (2) FI20155347A7 (en)
PE (1) PE20171698Z (en)
WO (1) WO2016181041A1 (en)

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US4036361A (en) * 1975-12-18 1977-07-19 Leo Jacobson Collapsible container
US4648521A (en) * 1986-05-27 1987-03-10 Hoover Group, Inc. Composite metal and plastic tank
DE10252745B3 (en) * 2002-11-13 2004-06-17 Schütz GmbH & Co. KGaA Storage containers for liquids and method for manufacturing the outer container of the storage container
DE102005004245A1 (en) * 2005-01-29 2006-08-03 Schulze, Alfred, Dipl.-Ing. Container arrangement for transporting pourable product, especially on railway waggon or lorry, comprising transporting container securely connected to and rotatably mounted on supporting frame
WO2010096457A2 (en) * 2009-02-20 2010-08-26 Headworks Bio Inc. Modular wastewater treatment system and method

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FI20155347L (en) 2016-11-14
FI11896U1 (en) 2017-12-15
AU2016102360A4 (en) 2019-05-09
AU2016261000A2 (en) 2017-12-14
CN208436404U (en) 2019-01-29
WO2016181041A1 (en) 2016-11-17
CL2017002862U1 (en) 2018-02-02
FI20155347A7 (en) 2016-11-14
PE20171698Z (en) 2017-11-28

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