JP2001179011A - Solid-liquid continuous filtration/separation apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solid-liquid continuous filtration/separation apparatus including all of the unit operations related to filtration and separation to accelerate a filtration separation function, receiving a flocculant in wastewater treatment to enhance the mixing and flocculation effect of wastewater to be treated, enabled in the so-called 'stationary washing' (CIP) even in washing operation and capable of being reduced in scale. SOLUTION: In an apparatus receiving a fluid to be treated to continuously filter and separate the same, a main passage 3 is provided in a shaft 2 having spiral continuous or discontinuous rotary blades 1, which are rotated along the peripheral surface of a cylindrical or conical perforated element EL, along the axis of the shaft so as to pierce through the shaft or to reach up to desired depth and the holes communicating with the main passage 3 and having outlets in an outer peripheral direction are bored in the shaft 2 to discharge the desired fluid introduced into the main passage from the outlets.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a solid-liquid continuous filtration / separation apparatus used in the food industry, the environment maintenance industry, and the like.

[0002]

2. Description of the Related Art In a continuous filtration / separation apparatus or the like in which a shaft having rotating blades in a barrel is rotated and a solid-liquid is filtered / separated by the pressure of transfer by rotating the shaft, the shaft is hollow. Supplying a heat medium to the inside, it is used for temperature-sensitive raw materials and raw materials containing a large amount of fiber, for example, separation of animal and vegetable oils, compression of fruit juices, dehydration of fish meat and sludge, and filtration by heating. Promotion is usually performed.

[0003]

However, in the above-mentioned conventional example, there is a problem that there is still room for improvement in terms of the variety of functions and the overall efficiency as an apparatus.

The present invention has been made in view of the above-described circumstances, and discharges and discharges a desired fluid from arbitrary peaks, valleys, and ridges and intermediate positions between the valleys of a rotary blade of a shaft. Encompasses all unit operations related to filtration and separation (dehydration, recovery, extraction, classification, concentration, etc.), and further enhances the mixing and coagulation effects by introducing a flocculant in wastewater treatment to promote its function. And also in the cleaning operation of the device,
It is an object of the present invention to provide a solid-liquid continuous filtration / separation apparatus capable of so-called “cleaning in place” (CIP) and capable of downsizing equipment.

[0005]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) A device for introducing and continuously filtering and separating a fluid to be treated, wherein the device has a spiral continuous shape rotating along the peripheral surface of a cylindrical or conical perforated element, or On a shaft having discontinuous rotating blades, penetrate a main hole along the axis of the shaft, or drill a hole at a desired depth, and drill a hole communicating with the main hole and having an outlet in an outer peripheral direction, A solid-liquid continuous filtration / separation apparatus, characterized in that a desired fluid introduced into the main hole can be discharged from the outlet.

(2) The hole having an outlet communicates with the main hole, and has a peak outlet having an outer peripheral end of the rotary blade as an outlet; a valley outlet of the rotary blade communicating with the main hole; A slanting outlet which communicates with the hole at an arbitrary angle and has an outlet at an intermediate position between the ridges and valleys of the rotating blades, and a plurality of these outlets are selected and provided so as to be freely combined. The solid-liquid continuous filtration / separation apparatus according to (1).

(3) The fluid is a heat medium and a gas such as steam or hot water, various coagulants in wastewater treatment, or other fluids for mixing and extraction. ). A continuous solid-liquid filtration / separation apparatus according to (1).

(4) The shaft is a cylindrical body, and rotating blades are provided on the outer periphery of the cylindrical body at an equal pitch or at an irregular pitch.
And the shape formed by the imaginary continuous line of the mountain portion which becomes the outer peripheral end of the rotating blade is gradually tapered from the root to the tip. The solid-liquid continuous filtration / separation apparatus according to the above (1), wherein the apparatus is formed as follows.

(5) The shaft is formed as a cone gradually expanding from the root toward the tip, and the rotating blades are wound around the shaft forming the cone at the same pitch or at an irregular pitch. The solid-liquid continuous filtration as described in the above item (1), wherein the shape is formed such that the shape formed by the virtual continuous line of the peak portion which is the outer peripheral end portion of the rotary blade is a cylindrical body. -Separation device.

(6) The shaft is formed as a tapered cone gradually from the root toward the tip, and the rotating blades are arranged at equal pitches or unequal pitches on the outer periphery of the shaft forming the tapered cone. Winding at an equal height, a shape formed by a virtual continuous line of a mountain portion serving as an outer peripheral end portion of the rotary blade is formed so as to gradually become a tapered cone from a root to a tip. Continuous filtration of solid-liquid as described in the above item (1)
Separation device.

(7) The shaft is formed as a cylindrical body, and rotating blades are wound around the outer periphery of the cylindrical body at an equal pitch or at an irregular pitch and at an equal height to form an outer peripheral end of the rotating blade. The solid-liquid continuous filtration / separation apparatus according to the above item (1), wherein the shape formed by the virtual continuous line of the mountain portion is a cylindrical body.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

1 (a) and 1 (b) are cross-sectional explanatory views showing an embodiment of a solid-liquid continuous filtration / separation apparatus according to the present invention, and FIG. 2 is a sectional view of a conical body having a tapered outer shape. Rotating blades,
FIG. 3 is a cross-sectional view showing an example in the case of a constant pitch, FIG. 3 is a cross-sectional view showing an example in the case of a rotating blade in the form of a cone having a cylindrical shape and a divergent shaft, and FIG. FIG. 5 is a cross-sectional view showing an example of a case in which teeth are both conical with a rotating blade, an equal pitch, and an equal height, and FIG. FIG. 6 is a cross-sectional view showing an example of a case of a tooth having a tooth shape, and FIG.
FIG. 7 is an explanatory cross-sectional view showing another embodiment, and FIG.
It is sectional explanatory drawing which shows other 2 Example.

Referring to the drawings, a shaft 2 having spiral or continuous rotating blades 1 rotating along the peripheral surface of a cylindrical or conical perforated element EL is attached to the shaft 2. Penetrates the elongated main hole 3 along the axis,
Alternatively, a hole is formed at a desired depth, and a hole having an outlet in the outer peripheral direction is formed so as to communicate with the main hole 3, and a desired fluid introduced into the main hole 3, that is, heat such as steam or hot water Various flocculants in medium and gas, or wastewater treatment, or mixing,
A hole having an outlet is capable of discharging another fluid or the like for the purpose of extraction from the outlet, and a hole having an outlet communicates with the main hole 3, and a peak outlet 5 having an outer peripheral end of the rotary blade 1 as an outlet; Main hole 3
And an oblique outlet 4 which communicates with the main hole 3 at an arbitrary angle and has an outlet at an intermediate position between the ridge and the valley of the rotary blade 1. A plurality of outlets are provided so as to be selected and freely combined.

Further, the oblique outlet 4 is provided with a structure in which the outer peripheral oblique exit is perforated at the intermediate position between the last rotating blade in the transfer direction or the peak and the valley near the last stage. When the concentration of the solid content after the treatment increases and a clogging state occurs, a desired fluid can be supplied from the main hole 3 and the clogging state can be eliminated.

A main hole 3 penetrating along a central axis of a shaft 2 serving as a fluid supply system or having a desired depth (FIG. 1A,
(Refer to (b)), a plurality of types in which the oblique exit 4, the peak exit 5, and the valley exit 6 are formed at arbitrary positions can be proposed.

That is, as shown in claim 4 and FIG. 2, the shaft 2 is formed as a cylindrical body, and the rotating blades 1 are provided on the outer periphery of the cylindrical body at an equal pitch or an irregular pitch. 1
Of the rotating blade 1
The shape formed by the imaginary continuous line of the crest, which is the outer peripheral end portion, is formed so as to gradually become a tapered cone from the root toward the tip, and is shown in claim 5 and FIG. As described above, the shaft 2 is formed as a cone gradually expanding from the root toward the tip, and the rotating blades 1 are wound around the outer periphery of the shaft 2 forming the cone expanding at an equal pitch or an irregular pitch. The shape formed by the imaginary continuous line of the ridge portion serving as the outer peripheral end portion of the rotary blade 1 is formed to be a cylindrical body, and as shown in claim 6 and FIG. 2 is gradually tapered from the root to the tip, and the rotating blades 1 are wound around the outer periphery of the shaft 2 forming the tapered cone at an equal pitch or at an irregular pitch and an equal height. The shape formed by the imaginary continuous line of the crest that is the outer peripheral end of the rotary blade 1 is a root. The shaft 2 is formed into a cylindrical body as shown in claim 7 and FIGS. 5 and 6. The rotating blades 1 are wound around the outer periphery of the rotating blades at an equal pitch, or at an irregular pitch and an equal height, so that a shape formed by a virtual continuous line of a mountain portion which is an outer peripheral end of the rotating blade 1 becomes a cylindrical body. It is formed in.

The operation will be described based on the above configuration.

In the process of supplying a fluid such as a desired heat medium such as steam or hot water to the main hole 3 and transferring the fluid to be processed by rotating the shaft 2 in the perforated element EL, the fluid to be processed is heated. Or the oblique exit 4, the mountain exit 5, the valley exit 6
Directly contact with a fluid such as a desired medium at each outlet to promote desired operation functions in each operation process such as filtration, separation, dehydration, recovery, concentration, extraction, and classification to improve overall efficiency Is possible.

In the case of foods and the like, for example, the extraction, mixing, filtration and separation steps of tea leaves, coffee or seasoning extract can be efficiently operated and processed in a short time.

In the waste water treatment, a coagulant or the like is introduced into the main hole 3 and discharged from each outlet provided as appropriate to enhance the mixing effect with the waste water to be treated and the dewatering effect together with the coagulation effect. Can be done.

Therefore, it is possible to reduce the size of the whole equipment including the equipment such as the settling tank in the wastewater treatment equipment.

The fluid, such as steam, hot water and gas, or coagulant released from each hole can be adjusted to a supply pressure that can withstand the pressure during processing.

By appropriately arranging the outlets, the cake removing operation and the washing of the apparatus can be controlled during the desired operation process or at any time such as at the end of the operation.

The washing operation is performed by appropriately arranging the oblique exit 4, the mountain exit 5, the valley exit 6, and the like.
IP "(in-place cleaning) is configured.

Further, by enhancing the effect of mixing (mixing) the fluids to be processed, an effect of preventing clogging of the valve seat of the discharge valve can be expected.

Further, by introducing a desired gas into the main hole 3 and releasing the gas from each outlet at appropriate time intervals according to the characteristics of the fluid to be treated, the accumulation of cake is reduced.
Or it can be eliminated.

As another embodiment, as shown in FIG. 7, a plurality of main holes 3 are provided by providing a plurality of main holes 3 by providing a header portion 3a at a root portion of a shaft 2 serving as an introduction portion of a fluid serving as a medium. , 5 and 6 as appropriate.

Further, as another two embodiments, as shown in FIG. 8, at least one or two or more subordinate holes 3n are provided in parallel with the main hole 3 and a plurality of these subordinate holes are provided. 3n closes the upstream side and releases the downstream side,
The main hole 3 and the subordinate hole 3n may be connected to each other through the communication hole 7n inside the shaft 2, and the subordinate hole 3n may be connected to the outlets 4, 5, and 6 as appropriate.

[0031]

According to the present invention, the extraction or mixing function can be performed by discharging and discharging a desired fluid from any peaks, valleys and ridges, and intermediate positions of the valleys of the rotating blades of the shaft. Accelerate or promote, further introduce a flocculant in wastewater treatment, etc., discharge from each outlet provided appropriately, enhance the mixing effect with the treated wastewater, and the dewatering effect together with the flocculation effect, ultimately, filtration , All the unit operations related to separation (dehydration, recovery, extraction, classification, concentration, etc.) are included to promote the function, and also in the washing operation of the device,
So-called "Cleaning in Place" (CIP) is possible, and the overall efficiency of the device can be improved and labor can be saved.
In addition, there is an effect that the equipment can be downsized.

[Brief description of the drawings]

FIGS. 1A and 1B are cross-sectional explanatory views showing an embodiment of a solid-liquid continuous filtration / separation apparatus according to the present invention.

FIG. 2 is a cross-sectional view showing an example of a case where the outer shape is a tapered conical body and the rotating blades are at an equal pitch.

FIG. 3 is a cross-sectional view showing an example of a case where the outer shape is a cylindrical body, the axis is a conical body that is divergent, and the rotating blades are at equal pitches.

FIG. 4 is a cross-sectional view showing an example of a case in which the outer shape and the axis are both tapered cones, and the rotating blades, the pitch, and the teeth are equal.

FIG. 5 is a cross-sectional view showing an example of a case in which both the outer shape and the shaft are cylindrical bodies, and the rotating blades, the pitches, and the heights of the teeth are equal.

FIG. 6 is a cross-sectional view showing an example of a case in which both the outer shape and the shaft are cylindrical bodies, and the rotating blades, unequal pitch, and equal height teeth are used.

FIG. 7 is an explanatory sectional view showing another embodiment.

FIG. 8 is an explanatory cross-sectional view showing another second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rotating blade 2 Axis 3 Main hole 3a Header 3n Dependent hole 4 Oblique exit 5 Peak exit 6 Valley exit 7n Communication hole EL Perforated element

Claims (7)

[Claims] An apparatus for introducing and continuously filtering and separating a fluid to be treated, comprising a spiral or continuous spiral rotating along the peripheral surface of a cylindrical or conical perforated element. A main hole is penetrated or drilled at a desired depth in a shaft having continuous rotating blades along the axis of the shaft, and a hole having an outlet in an outer peripheral direction is formed in communication with the main hole, and the main hole is formed. A solid-liquid continuous filtration / separation apparatus characterized in that a desired fluid introduced into the hole can be discharged from the outlet. 2. A hole having an outlet communicates with said main hole,
A ridge outlet having an outer peripheral end of the rotary blade as an outlet, a valley outlet of the rotary blade communicating with the main hole, and communicating with the main hole at an arbitrary angle, and between a ridge and a valley of the rotary blade. 2. The continuous solid-liquid filtration / separation apparatus according to claim 1, further comprising an oblique outlet having a position as an outlet, wherein the plurality of outlets are provided so as to be freely selected and combined. 3. The fluid according to claim 1, wherein the fluid is a heat medium and a gas such as steam or hot water, various coagulants in wastewater treatment, or other fluids for mixing and extracting. Solid-liquid continuous filtration and separation device. 4. The shaft is formed as a cylindrical body, and rotating blades are wound around the outer periphery of the cylindrical body at an equal pitch or at an irregular pitch, and the height of the rotating blades is gradually reduced. 2. The solid according to claim 1, wherein the shape formed by the imaginary continuous line of the crest, which is the outer peripheral end of the rotary blade, gradually becomes a tapered cone from the root toward the tip. −
Continuous liquid filtration and separation equipment. 5. The shaft is formed as a cone gradually expanding from the root toward the tip, and the rotating blades are wound around the outer circumference of the shaft forming the cone at the same pitch or at an irregular pitch. The solid-liquid continuous filtration / solidification according to claim 1, wherein the shape formed by the virtual continuous line of the crest serving as the outer peripheral end of the rotary blade is formed as a cylindrical body.
Separation device. 6. The shaft is formed as a cone gradually tapering from the root to the tip, and the rotating blades are arranged at equal pitches or unequal pitches on the outer periphery of the shaft forming the tapered cone.
And wound at the same height, and the shape formed by the virtual continuous line of the ridge which is the outer peripheral end of the rotary blade is formed so as to gradually become a tapered cone from the root to the tip. The solid-liquid continuous filtration / separation apparatus according to claim 1, characterized in that: 7. The shaft is formed as a cylindrical body, and rotating blades are wound around the outer periphery of the cylindrical body at an equal pitch or an unequal pitch and at an equal height, and a mountain serving as an outer peripheral end of the rotating blade is provided. 2. The solid-liquid continuous filtration according to claim 1, wherein the shape formed by the virtual continuous line of the portion is a cylindrical body.
Separation device.