JP2010058088A - Apparatus for mixing processing of conical ribbon with improved detergency and maintenance property - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To develop an apparatus for mixing processing of conical ribbon which is cantilevered only in the upper part, operated at a high rotation speed, and improved in the innovative detergency and maintenance property by making a ribbon blade be a single strip type excellent in the detergency and maintenance property and setting the gravity center in a plane view at the center of the rotary shaft. <P>SOLUTION: The apparatus includes a rotary blade 3 equipped with a strip-like ribbon blade 32 in a reversely conical treatment bath body 10 to carry out one or a plurality of treatments; mixing, crushing, drying, disinfecting, and cooling; for an object W to be treated by the rotary blade 3. This apparatus is provided with a counter balancer 5 for correcting the dislocation of the gravity center G0 of the rotary blade 3 attributed to the shape of the ribbon blade 32 and since the shift of the gravity center G0 of the rotary blade 3 from the center of the rotary shaft 30 is corrected by the counter balancer 5, the rotation of the rotary blade 3 is stabilized and generation of vibration is suppressed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a conical ribbon mixing apparatus that performs any one or more of mixing, crushing, drying, sterilization, and cooling of an object to be processed, and in particular, includes a single ribbon wing. Further, the present invention relates to a conical ribbon mixing apparatus.

Conventionally, a conical ribbon mixing apparatus has been used as an apparatus for mixing, crushing, drying, sterilizing, and cooling various foods, feeds, pharmaceuticals, chemicals, and the like.
As shown in FIG. 7, the conical ribbon mixing processing apparatus D ′ includes a rotating blade 3 ′ in an inverted conical processing tank 1 ′, and the rotating blade 3 ′ allows the entire processing tank 1 ′ to be processed. The circulating flow of W is caused to mix, crush, dry, sterilize, and cool the workpiece W.

The rotary blade 3 'is provided with a ribbon-like ribbon blade 32'. The support bar 31 'is opposed to the rotary shaft 30' provided at the center of the treatment tank 1 'in plan view. The ribbon blade 32 'is attached to the ribbon blade 32', and the ribbon blade 32 'is brought into a state close to the inner wall surface of the processing tank 1'.
Then, when the workpiece W is introduced from the inlet 12 'formed in the upper portion of the processing tank 1' while rotating the rotary blade 3 ', the workpiece W is spiral ribbon blade in the processing tank 1'. Ascending along the inner wall of the treatment tank 1 ′ while being guided by 32 ′, reaches the position of the vortex breaker 6 ′ provided at the upper part, collides with the vortex breaker 6 ′, and is guided to the center from here. It will fall.
Thereafter, the workpiece W is subjected to any one or more of mixing, crushing, drying, sterilization, and cooling while flowing and circulating through such a path.

By the way, this type of conical ribbon mixing apparatus D ′ includes a conical ribbon mixing apparatus D2 ′ provided with two ribbon blades 32 ′ shown in FIG. 7 and a single ribbon blade 32 ′ shown in FIG. There is a conical ribbon mixing apparatus D1 ′ provided (see, for example, Patent Documents 1 and 2), each having advantages and disadvantages.
First, the conical ribbon mixing apparatus D2 'provided with the two ribbon blades 32' is installed so that the two ribbon blades 32 'and the vortex breaker 6' are symmetrical about the rotation axis 30 'in a plan view. Thus, the center of gravity G0 is positioned substantially at the center of the rotating shaft 30 ', and a stable rotating state can be obtained. For this reason, the rotating shaft 30 'can be so-called cantilevered by a bearing mechanism only at the upper part of the apparatus, and can be operated at a high speed rotation, so that mixing, crushing, drying, sterilization and cooling are efficiently performed. be able to.
On the other hand, since the two stirrer blades 32 'and the support bar 32' are densely present in the treatment tank 1 ', the free space is scarce, and adhering substances are easily attached. It's not good. In particular, the attached matter adheres to the two ribbon wings 32 ′ and the support bar 31 ′.

Next, the conical ribbon mixing treatment apparatus D1 ′ provided with the one ribbon blade 32 ′ has a wide free space because only one ribbon blade 32 ′ exists in the treatment tank 1 ′. The kimono is less likely to adhere and is excellent in its removal and cleaning workability. In particular, since the deposits are only those that adhere to the ribbon blade 32 'and the support bar 31' for one strip, the amount of the deposit is small.
On the other hand, even if the center of gravity G0 of the rotary blade 3 'is designed to be located at the center of the stirring shaft 30' as much as possible in plan view, the center of gravity G0 is inevitably displaced from the center of the rotary shaft 30 '. As a result, since the rotation is not stable, the rotary blade 3 ′ itself causes vibrations, and since the rotation is not stable, the flow of the workpiece W is disturbed, which causes vibrations.
For this reason, in order to obtain a stable rotation state, the rotary shaft 30 'is so-called both upper and lower supported by a bearing mechanism provided on the upper and lower sides of the apparatus, or the diameter of the rotary shaft 30' is increased and the rotation shaft 30 'is rotated at a low speed. Consideration must be given such as driving.
However, when the rotary shaft 30 'is both vertically supported, it is inevitable that powder is clogged with respect to the bearing provided at the lower portion of the processing tank 1', and is not suitable for food processing for hygiene purposes. It will become something.
Further, when the rotating shaft 30 'is rotated at a low speed, the so-called co-rotation in which the workpiece W rotates with the rotating blade 3' without being stirred, mixing unevenness, drying unevenness, and lumps occur. It may end up.

Further, in the case of the type having two ribbon wings 32 ′, the flow of the workpiece W in a plan view becomes a symmetric flow by the ribbon wings 32 ′ provided symmetrically, whereas one ribbon wing 32 is provided. In the case of the type having ′, the flow of the workpiece W is asymmetrical because it is a single line. For this reason, reaction forces and impacts caused by the flow of the non-processed product W act asymmetrically on the rotary blade 3 ', the inner surface of the processing tank main body 10' and the vortex breaker 6 'in a plan view, thereby preventing stable rotation. In other words, it is a factor that causes further vibration.
Furthermore, in the case of a type having a single ribbon blade 32 ', the width and the like of the ribbon blade 32' is the original shape suitable for the flow of the workpiece W in order to adjust the position of the center of gravity G0. The shape may be changed to a different shape, and it has been difficult to stabilize the rotational state and to improve the flow state.
JP 09-234500 A Japanese Utility Model Publication No. 63-16829

  The present invention was made by recognizing such a background, and while the ribbon blade is a single type excellent in cleaning properties and maintainability, by positioning the center of gravity in plan view at the center of the rotation axis, The technical issue is the development of a new conical ribbon mixing treatment device that can be so-called cantilevered only at the top of the device, and can be operated at high speeds, with improved cleanability and maintainability. is there.

In other words, the conical ribbon mixing treatment apparatus with improved cleaning properties and maintainability according to claim 1 is provided with a rotating blade comprising a single ribbon blade in an inverted conical processing tank, and this rotating blade. In the apparatus that performs any one or a plurality of processes of mixing, crushing, and drying of the object to be processed, the apparatus corrects a deviation of the center of gravity of the rotary blade caused by the shape of the ribbon blade. It is characterized by having a counter balancer.
According to the present invention, since the deviation between the center of gravity of the rotor blade and the center of the rotating shaft is corrected by the counter balancer, the rotation of the rotor blade is stabilized and the occurrence of vibration can be suppressed.
The center of gravity of the rotor blade means the center of gravity including the support bar that supports the rotor blade.

In addition to the above requirements, the conical ribbon mixing treatment apparatus with improved cleanability and maintainability according to claim 2 is characterized in that the counter balancer is centered on the center of the rotating shaft in a plan view and the center of gravity of the rotating blades The reference line is a line connecting a point in the direction of 180 ° to the center of gravity of the rotor blade, and the center of gravity of the counter balancer is located within a range of 60 ° to the left and right of this reference line. It consists of
According to this invention, the center of gravity of the rotor blade can be corrected to a position where the rotor blade can stably rotate, and the vibration of the apparatus can be further suppressed.

In addition to the above-mentioned requirements, the conical ribbon mixing treatment apparatus with improved cleaning properties and maintainability according to claim 3 is characterized in that the counter balancer is of a ribbon blade type provided on a rotating shaft. It consists of.
According to the present invention, since the object to be processed located in the upper part of the processing tank can be made to flow symmetrically in plan view, the rotation of the rotary blade can be further stabilized and the vibration of the apparatus can be further suppressed. .

According to a fourth aspect of the present invention, there is provided a conical ribbon mixing apparatus having improved cleaning properties and maintainability, in addition to the requirements of the third aspect, the ribbon blade type counter balancer is a ribbon blade positioned at the same height. The width is set to be 0.3 to 1.2 times as long as the length is set within one round.
According to the present invention, it is possible to further suppress the vibration of the apparatus while maintaining the function as a counter balancer, and it is possible to suppress the adhesion and the residue of the object to be processed.

According to a fifth aspect of the present invention, there is provided a conical ribbon mixing apparatus having improved cleaning properties and maintainability, in addition to the requirements of the first or second aspect, the counter balancer is of a bar type provided on a rotating shaft. It is characterized by being.
According to the present invention, since the support member for the counter balancer is not required, adhesion and residue of the object to be processed can be suppressed.
The above problems can be solved by using the configuration of the invention described in each of the claims as a means.

  According to the present invention, the ribbon wing is a single-blade type and has excellent cleaning properties and maintainability. Driving can be realized.

  Hereinafter, the conical ribbon mixing treatment apparatus with improved cleaning properties and maintainability according to the present invention will be described based on the illustrated embodiment. However, this embodiment is within the scope of the technical idea of the present invention. It is also possible to make appropriate changes in.

[Cone type ribbon mixing processing equipment with ribbon wing type counter balancer]
In FIG. 1, what is indicated by a symbol D is a conical ribbon mixing processing apparatus (hereinafter referred to as a conical ribbon mixing processing apparatus D) having improved cleaning properties and maintainability according to the present invention. It is an apparatus for performing any one or a plurality of processes of mixing, crushing, drying, sterilization, and cooling of the workpiece W by the rotary blade 3 provided in the conical processing tank 1.

First, in the treatment tank 1, a treatment tank body 10 is formed by a conical portion 1A formed by forming an appropriate metal material in an inverted conical shape and a cylindrical portion 1B connected above the conical portion 1A. The upper opening of 1B is closed by the top plate 11, and the internal space of the processing tank 1 is configured as a processing space.
An inlet 12 is formed for the top plate 11, and an outlet 13 is formed in the lower part of the processing tank 1.

Further, a motor M and a speed reducer 2 are provided on the top plate 11, and an output shaft of the speed reducer 2 is connected to a rotary shaft 30 of a rotary blade 3 disposed in the processing tank 1.
The rotary blade 3 has a plurality of support bars 31 fixed along the axial direction of the rotary shaft 30, and a narrow ribbon blade 32 is attached to the end of the support bar 31 in a tapered manner. It consists of.

  Also, in the cylindrical portion 1B, the eddy current breaker 6 moves the processed product W that has risen along the inner wall of the conical portion 1A by the ribbon blade 32 to the vicinity of the center of the processing tank 1 and drops it to the lower portion of the processing tank 1. In this embodiment, as an example, as shown in the plan view of FIG. 2A, it is provided at two symmetrical positions around the rotation axis 30.

Ideally, the position of the center of gravity G0 of the rotary blade 3 in plan view overlaps with the center of the rotary shaft 30, but in reality, the ribbon blade 32 has different width dimensions and circumferential lengths in the vertical direction. Due to the complicated shape and the support bar 31 that supports the ribbon blade 32, as shown in FIG.
Therefore, in the present invention, a counter balancer 5 that corrects such a deviation is provided. Here, the center of gravity of the rotor blade 3 before the counter balancer 5 is provided is G0, the center of gravity of the counter balancer 5 is G1, and the center of gravity of the rotor blade 3 with the counter balancer 5 is provided as G2. And
In this embodiment, a ribbon wing type counter balancer 51 is employed, and a support bar 53 for connecting the counter balancer 51 to the rotary shaft 30 is also substantially a component of the counter balancer 5.
As shown in FIG. 3B, this type of counter balancer 51 has a point in the direction of 180 ° from the center of gravity G0 of the rotor blade 3 and the center of gravity of the rotor blade 3 with the center of the rotating shaft 30 as the center point in plan view. A line connecting G0 is used as a reference line L, and the center of gravity G1 of the counter balancer 51 is provided within a range of 60 ° to the left and right of the reference line L. As a result, the center of gravity G0 of the rotor blade 3 is corrected as the center of gravity G2 located substantially at the center of the rotating shaft 30. Positioning the center of gravity G1 of the counter balancer 51 in this range stabilizes the rotation, and further stabilizes the rotation so that the flow of the workpiece W is stabilized, so that the vibration of the conical ribbon mixing processing device D is suppressed. .
Note that the graph shown in FIG. 5 shows a change in the eccentric distance from the center point of the rotation shaft 30 of the center of gravity G2 when the position of the counter balancer 51 is changed around the center point of the rotation shaft 30. The horizontal axis (balancer installation angle) of this graph is based on the center point of the rotating shaft 30 in FIG. 3B as a reference point, and the center line of the support bar 31 supporting the uppermost portion of the ribbon blade 32 is the reference in the 0 ° direction. The counterclockwise angle when the line X is set is shown, and the center of gravity G1 of the counter balancer 51 is changed counterclockwise.

  The ribbon blade type counter balancer 51 is set to have a width 0.3 to 1.2 times that of the ribbon blade 5 located at the same height, and the length thereof is within one turn (one turn). Minute, ie within 360 °). In the embodiment shown in FIG. 3 (b), a ribbon blade type counter balancer 51 is set to ¼ circumference (90 °). In addition, when the width of the ribbon blade type counter balancer 51 is narrower than 0.3 times that of the ribbon blade 5 located at the same height, the design for securing the balance of the center of gravity is difficult, The action of flowing symmetrically becomes weak. Further, when the width of the ribbon blade type counter balancer 51 is wider than 1.2 times that of the ribbon blade 5 located at the same height, the adherence and the residue of the workpiece W increase and the cleaning property and the maintenance property are impaired. This is not preferable because it easily hinders visual confirmation in performing these operations.

  In the case of the existing single-strip type rotary blade 3 ′ shown in FIG. 8, the width dimension of the ribbon blade 32 ′ may be changed in order to bring the center of gravity G0 closer to the center of the rotary shaft 30 ′. According to the invention, such a modification is unnecessary, and the ribbon blade 32 can be kept in a shape suitable for the flow of the workpiece W.

The conical ribbon mixing treatment apparatus D of the present invention is configured as described above as an example, and hereinafter, the operation state of this apparatus will be described, and then the mode of maintenance work will be described.
First, the workpiece W is introduced into the treatment tank 1 from the introduction port 12 while starting the motor M and rotating the rotary blade 3. The workpiece W is guided to the spiral ribbon blade 32. While being done, it rises along the inner wall of the treatment tank body 10.
At this time, according to the present invention, since the center of gravity G0 of the rotor blade 3 is corrected as the center of gravity G2 positioned at the center of the rotating shaft 30 in plan view, the rotating shaft 30 can be stabilized while being cantilevered only at the top. A rotating state can be obtained, and the rotating blade 3 can be rotated at high speed. For this reason, it is possible to avoid the so-called co-rotation in which the workpiece W rotates with the rotary blade 3 without stirring, the occurrence of uneven mixing, uneven drying, and lumps, etc., which occurs when rotating at a low speed. It becomes.

In addition, the workpiece W that has risen along the inner wall of the processing tank body 10 while being guided by the ribbon blade 32 is guided by the vortex breaker 6, moves to the vicinity of the center of the processing tank 1, and falls to the lower part of the processing tank 1. . The eddy current breaker 6 is a member for promoting the circulation of the workpiece W in the treatment tank body 10, but when the treatment object W comes into contact with the inner surface of the treatment tank body 10 while flowing, When it comes into contact, an impact is generated.
However, in the conical ribbon type mixing processing apparatus D of the present invention, the workpiece W positioned in the upper part in the processing tank 1 is also guided by the ribbon blade type counter balancer 51 and symmetrical about the rotating shaft 30. Will eventually flow and will eventually come into contact with the vortex breaker 6. For this reason, the workpiece W flows symmetrically with respect to the rotating shaft 30 and the inner surface of the processing tank body 10, and the workpieces are simultaneously applied to the vortex breakers 6 provided at two positions symmetrical to the rotating shaft 30. Since W comes into contact, the impact is almost cancelled, the rotation of the rotary blade 3 can be stabilized, and the vibration of the conical ribbon type mixing apparatus D can be suppressed.

  When the high-viscosity processed product W adheres to the ribbon blade 32, the support bar 31, and the counter balancer 51 and the support bar 53, or when maintenance such as component replacement is necessary, the top plate 11 is removed. The work is performed in a state where the rotor blade 3 is removed and the rotor 3 is pulled out from the processing tank 1. However, the conical ribbon mixing apparatus D according to the present invention has only one ribbon blade 32, and therefore removes and cleans the attached matter. There are few parts that need to be removed, and workability is excellent. In particular, the amount of deposits is less than that of the two-row type, and the removal work is reduced.

[Conical ribbon mixing equipment with a bar-type counter balancer]
Next, the counter balancer 5 with different types will be described.
4 (a) and 4 (b) is a rotating blade 3 in which a bar-type counter balancer 52 is connected to a rotating shaft 30, and such a rotating blade 3 is provided in the processing tank body 10. Thus, the conical ribbon mixing apparatus D is configured. Since the counter balancer 52 is composed of only one bar, when the force acting due to the flow of the workpiece W is small, the vibration generated in the conical ribbon mixing processing device D is also small, so that stable operation is possible. It is possible to reduce the amount of deposits as compared with the rotary blade 3 of the type shown in FIG.
4C and 4D, a round bar-shaped counter balancer 55 is supported by a support bar 53 in place of the ribbon blade type counter balancer 51 shown in FIGS. 3A and 3B. It is a rotary blade 3. This is more stable than the counter balancer 52 shown in FIGS. 4 (a) and 4 (b), which is composed only of bars, and further suppresses the vibration of the conical ribbon mixing apparatus D. It is something that can be done.
In addition, the installation location and the number of the counter balancers 5 can be appropriately changed within the scope of the technical idea of the present invention.

[Conical ribbon mixing treatment equipment with counter balancer outside the treatment tank]
FIG. 6 shows an embodiment in which the counter balancer 5 is provided outside the processing tank 1, and an eccentric weight counter counter 54 is provided at a portion of the rotating shaft 30 located outside the processing tank 1. It is.

FIG. 3 is a perspective view showing a part of the conical ribbon mixing apparatus of the present invention in a transparent manner. It is the top view and side view which show a conical ribbon mixing processing apparatus of the present invention partially transparently. It is the perspective view and top view which show the rotary blade provided with the ribbon blade type counter balancer. It is the perspective view and top view which show the rotary blade provided with the bar-type counter balancer. It is a graph which shows the relationship between a balancer installation angle and eccentric distance. It is the perspective view and top view which show the Example to which the eccentric weight type counter balancer was applied. It is the perspective view and top view which show the existing conical ribbon mixing processing apparatus provided with the two ribbon wing | blade. It is the perspective view and top view which show the existing conical ribbon mixing processing apparatus provided with the ribbon wing | blade of 1 item | stripes.

Explanation of symbols

D Conical Ribbon Mixing Processing Device 1 Processing Tank 1A Conical Part 1B Cylindrical Part 10 Processing Tank Body 11 Top Plate 12 Input Port 13 Discharge Port 2 Reducer 3 Rotary Blade 30 Rotary Shaft 31 Support Bar 32 Ribbon Blade 5 Counterbalancer 51 Counterbalancer 52 counter balancer 53 support bar 54 counter balancer 55 counter balancer 6 eddy current breaker D1 'conical ribbon mixing treatment device D2' conical ribbon mixing treatment device G0 center of gravity G1 center of gravity G2 center of gravity L reference line M motor W workpiece X reference line

Claims (5)

  A rotating blade having a single ribbon blade is disposed in an inverted conical processing tank, and any one of the processing of mixing, crushing, drying, sterilization, and cooling of an object to be processed by this rotating blade or In an apparatus for performing a plurality of treatments, the apparatus has improved cleanability and maintainability characterized by including a counter balancer for correcting a deviation of the center of gravity of the rotary blade caused by the shape of the ribbon blade. Conical ribbon mixing equipment.   In the plan view, the counter balancer has, as a reference line, a line connecting a point in the direction of 180 ° from the center of gravity of the rotor blade and the center of gravity of the rotor blade, with the center of the rotation axis as a center point. 2. The conical ribbon mixing apparatus according to claim 1, wherein the counter balancer is provided so that the center of gravity of the counter balancer is located within a range of [deg.].   3. The conical ribbon mixing apparatus according to claim 1 or 2, wherein the counter balancer is of a ribbon blade type provided on a rotating shaft.   The ribbon wing type counter balancer is set to be 0.3 to 1.2 times as wide as the ribbon wing located at the same height, and the length thereof is set within one round. 4. The conical ribbon mixing apparatus according to claim 3, wherein the cleaning performance and maintenance performance are improved.   3. The conical ribbon mixing apparatus according to claim 1 or 2, wherein the counter balancer is of a bar type provided on a rotating shaft.

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