JP3106115B2 - Granulator - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a granulating apparatus,
In particular, products such as sludge-like substances (including sludge-like substances, powder, granules, garbage, garbage, etc.) are granulated to thereby prevent environmental pollution due to scattering of the sludge-like substances and the like, and The present invention relates to a granulating device for improving portability and the like.

[0002]

2. Description of the Related Art A technique for adding lime (or lime and water) to a sludge-like substance and granulating the sludge-like substance with an appropriate water content has already been disclosed in JP-B-54-121330 and JP-B-7-794. 98200 and the like. In this case, most of the dewatered sludge ("dewatered cake")
(Hereinafter also referred to as "granules") to improve portability, or to enhance durability during long-term storage and to effectively prevent environmental pollution due to scattering.

[0003] For example, quicklime is added to a dewatered cake obtained by dewatering sewage sludge (water content of about 96 to 98%) to about 80% and reacted with moisture, and the moisture is reduced by the generation of heat and compounds to form granules. Conventionally, it has been used for fertilizer.

FIG. 32 shows a specific example of a tornado fin type which is one of the sludge-like substance drying / granulating apparatuses. The tornado fin type drying / granulating apparatus shown in FIG.
A heater 102 is provided around a casing 101 for storing sludge.
Equipped with a main shaft 10 disposed in the center.
3 and a spiral tornado fin 1 integrated with it
04, a sludge carry-in section 105 for feeding cake at one end and a carry-out conveyor 106 for sending dry sludge at the other end.

In this case, the sludge in the casing 101 is
A strip-shaped rake member (the main shaft 103 and the tornado fins 104) arranged along the bottom plate portion in the casing 101.
Tornado fin 1
The sludge is conveyed upward along the spiral surface of the tornado fin 104 in combination with the centrifugal force applied to the sludge as the tornado fin 104 is rotated in the direction of arrow A. Is done. Then, it is heated by the heater 102 during the upward transfer process.

The sludge that has reached the upper part is swept to the center by the baffle plate 110. Hereinafter, by repeating this, the sludge is dried and granulated. Here, reference numeral 112 denotes an evaporating water discharging section. Also, reference numeral 1
Reference numeral 16 denotes a driving device for driving the tornado fin 104 to rotate.

[0007]

However, in each of the above conventional examples, the stirring and granulating steps are performed relatively well, but the sizing is not always satisfactory. ing. For this reason, for example, in the case of converting sludge treated in large quantities into fertilizer, if the particle size is extremely large, mechanical sowing cannot be performed when used as fertilizer, and at the same time, the effect as fertilizer becomes slower. was there.
On the other hand, if the particle size is too small, the particles are liable to be scattered by the wind, which causes a disadvantage that the commercial value is greatly reduced.

Further, in the prior art, there are many single-function apparatuses, such as only kneading, kneading and granulation, only granulation, granulation and sizing, or only sizing. In addition, there are many large-sized granulators in themselves. For this reason, when a system is constructed in which the kneading function, the granulating function, and the sizing function are sequentially connected in series, there is a disadvantage that the entire apparatus becomes large, occupies a large area, and becomes expensive.

[0009]

An object of the present invention is to improve the disadvantages of the prior art and, in particular, to provide a granulating apparatus having not only the kneading and granulating functions but also the sizing function and enabling the whole apparatus to be miniaturized. The purpose is to provide.

[0010]

In order to achieve the above object, according to the first aspect of the present invention, there is provided a substance carry-in portion for carrying a predetermined amount of a granulated object such as a sludge-like substance which has been dehydrated into a cake. A cylindrical casing, a spiral tornado fin rotatably disposed along the inner wall of the casing, and further holding the above-mentioned tornado fin disposed on the central shaft portion of the casing and rotating the tornado fin. A main spindle to be driven, and a baffle plate that is provided at an upper end portion in the casing and sweeps out granulated matter that is irregularly large and small and that rises on the spiral surface of the tornado fin,
The apparatus includes a granulated matter discharge section provided at a predetermined position on a side surface of the casing, and an exhaust gas discharge section that discharges exhaust gas in the casing. The casing is provided with a spindle drive unit for rotating the spindle described above.

[0011] Then, corresponding to the spiral surface of the tornado fin described above, a large-grain notch for engraving the particle size of a sludge-like substance or the like to be granulated while rolling on the spiral surface to a predetermined size. Equipped with a means, is adopted.

Therefore, according to the first aspect of the present invention,
First, a hydration reaction is started by adding an appropriate amount of quick lime to the dehydrated cake and kneading the mixture.After that, when a predetermined time elapses and the moisture content becomes suitable for granulation, slaked lime becomes a binder and the rotating operation is performed. The spiral surface of the tornado fin serves as a rolling surface to promote granulation.

[0013] In this case, the large particle size means provided in the middle of the tornado fin gradually adjusts the particles having a large particle diameter to a predetermined diameter (for example, about 6 mm), and rotates the tornado fin on its plate surface with rotation. It rises while rolling, and is discharged from the discharge section as granulated granulated material. In addition, the above-mentioned dewatered cake includes those obtained by adding a predetermined binder such as water to the dried granules or powder and kneading them.

According to a second aspect of the present invention, in the granulating apparatus according to the first aspect, a predetermined portion of the casing is provided with:
The apparatus is provided with a binder supply means for spraying a granulating liquid onto a granulation target such as a sludge-like substance.

Therefore, in the invention according to claim 2,
In addition to having the same function as that of the above-described granulating apparatus according to claim 1, the moisture content of the granulation target can be appropriately adjusted, and the optimum granulation conditions can be set.

According to a third aspect of the present invention, there is provided the granulating apparatus according to the first or second aspect, wherein the large grain cutting means is provided along a spiral surface of the tornado fin and fixedly mounted on the tornado fin. And a gap between the tip of each of the plurality of cutter members and the side wall of the casing.
The configuration is such that it is gradually set smaller as going upward.

Therefore, in the invention according to claim 3,
In addition to functioning equivalently to the above-described claim 1 or 2, particularly, since the large grains are sequentially cut by a plurality of needle-shaped cutter members, the grain size of the granulated product can be made uniform. At this point, the quality of the granulated product can be improved. In particular, since the spiral surface of the tornado fin is subjected to large grain cutting while the granulated material is rising, a granulated material having a uniform particle size can be obtained continuously and quickly, and in this respect, the product value is reduced. High granules can be obtained.

Furthermore, since the needle-shaped cutter member is used, the degree of adhesion of the dewatered cake to the cutter member can be reduced, and in this regard, the large-grain chopping means can be operated in a reasonable state. Can,
The sizing operation can be performed smoothly and efficiently.

According to a fourth aspect of the present invention, there is provided the granulating apparatus according to the first or second aspect, wherein the large grain engraving means is provided along a spiral surface of the tornado fin and fixed to the tornado fin. Two hanging bars,
Along with the bar cutter held by the hanging bar, the interval between a part of the bar cutter and the side wall of the casing is set gradually smaller as going upward.
The configuration is adopted.

Therefore, the invention according to claim 4 functions in the same manner as the invention described in claim 1 or 2, and can efficiently perform granulation and sizing with a simple structure. Become.

According to a fifth aspect of the present invention, in the granulating apparatus according to the first or second aspect, the large-graining means is provided with a plurality of comb-shaped blades and on the uppermost spiral surface of the tornado fin. And a chopper which is engaged with a part of a rotating plane in a space between the respective blades of the comb filter and is forcibly driven to rotate by a predetermined driving means. And a mechanism.

Therefore, the invention according to claim 5 has the same function as that of the invention described in claim 1 or 2, and particularly, quickly and surely performs the granulation of the granulated material. It becomes possible.

According to a sixth aspect of the present invention, in the granulating apparatus according to the fifth aspect, the chopper mechanism is provided
A configuration including a hanging spindle and a plurality of cutters held by the hanging spindle and protruding radially outward is provided, and the cutters are arranged in a plurality of stages along the hanging spindle. Further, at least two cutters divided into each stage of the chopper mechanism are arranged on the same rotating surface.

For this reason, the invention according to claim 6 has the same function as that of the invention described in claim 5, and in addition, since the chopper mechanism has a plurality of cutters, a relatively large granular material is provided. Can be effectively dealt with.

According to a seventh aspect of the present invention, there is provided the granulating apparatus according to the fifth or sixth aspect, wherein the comb-like filter is provided with a granulated material rolling along a spiral surface on a tornado fin. A configuration is adopted in which the downstream end is directed obliquely on the helical surface of the tornado fin so that the downstream end is directed toward the main shaft so as to guide to the main part side.

For this reason, the invention according to claim 7 functions in the same manner as the invention described in claim 5 or 6, and in particular, the granulated material that rolls on the tornado fin along the spiral surface. Is guided toward the center of the casing so as to fall, and the granules immediately after the fall are sliced, so that the granules can be more effectively refined.

According to an eighth aspect of the present invention, in the granulating apparatus according to the fifth, sixth or seventh aspect, the comb-like filter is held in the casing and the comb-like filter is unnecessary. Adopts a configuration in which a comb filter retracting mechanism for retracting the comb filter between the tornado fin and the main shaft is provided.

Therefore, the invention according to the eighth aspect functions in the same manner as the invention according to the fifth, sixth or seventh aspect, and particularly when the comb filter is unnecessary, for example, when the entire apparatus is dehydrated. When the cake (granulated object) is in the kneading step, the granulated object having a high viscosity adheres to the comb filter to increase the load or the comb filter functions. The inconvenience of disappearing can be effectively eliminated in advance.

According to a ninth aspect of the present invention, in the granulating apparatus of the fifth, sixth or seventh aspect, the comb-like filter and the chopper mechanism are held in the casing, and the comb-like filter and the chopper mechanism are provided. If not necessary, the comb filter and the chopper mechanism are equipped with a retracting mechanism such as a chopper for retracting the entire chopper mechanism above the tornado fin.

For this reason, the invention according to the ninth aspect also functions in the same manner as the invention according to the fifth, sixth or seventh aspect, and in particular, the entire large-graining means is retracted above the tornado fin. As a result, the dewatered cake (granulation target) in the highly viscous kneading step does not adhere to the comb filter and the chopper mechanism, and therefore, the granulation target is always kept in a new state when necessary. Has the advantage that a sizing operation can be performed.

According to a tenth aspect of the present invention, in the granulating apparatus of the fifth, sixth, seventh, eighth, or ninth aspect, each cutter of the comb-like filter is protruded from the main shaft side (projecting from the spiral surface of the toned fin). And a cutter terrace having a cutter-like shape is provided at the tip of the lowermost cutter.

Therefore, the invention of claim 10 functions in the same manner as the above-described invention of claim 5, 6, 7, 8, or 9, and also performs the sizing operation on the granulated object. It has the advantage that it can be executed more effectively.

According to an eleventh aspect of the present invention, in the granulating apparatus of the fifth aspect, the comb filter is disposed between the main shaft and the tornado fin, and the chopper mechanism is connected to the tornado fin. Equipped with a predetermined interval on the uppermost spiral surface. Then, at least two cutters divided into each stage of the chopper mechanism are arranged on the same rotating surface, and the tips of the plurality of cutters in each stage are bent in the rotation direction. .

[0034] For this reason, in the eleventh aspect of the present invention, the same function as that of the fifth aspect of the invention can be obtained, and further, the tips of the plurality of cutters of the chopper mechanism are rotated in the rotational direction. Since it is bent in the direction, after the granulated material on the tornado fin is locked, cutting is performed after a while, so that the filter function can be improved. Also, the cutter tip (bent in the direction of rotation), which is slightly faster than the speed of the grains, acts to scoop up the grains from the opposite side in the direction of travel, so that the grains are less likely to be damaged. The disadvantage of the prior art that the particles are scattered can be improved.

According to a twelfth aspect of the present invention, in the granulating apparatus according to the eleventh aspect, when the chopper mechanism is held in the casing and the chopper mechanism is unnecessary, the chopper mechanism is combined with a tornado fin. A chopper retracting mechanism that retracts between the main shaft and the main shaft is provided.

Therefore, the invention according to claim 12 functions in the same manner as the invention described in claim 11, and furthermore, when the chopper mechanism is unnecessary, for example, the entire apparatus is dewatered cake (granulated object). For example, in the case of the kneading process of the material, the granulated material having a high viscosity adheres to the chopper mechanism to increase the load or to adhere to the highly viscous granulated material. The inconvenience that the chopper mechanism stops functioning can be effectively eliminated in advance.

According to a thirteenth aspect of the present invention, in the granulating apparatus according to the first or second aspect, a small-diameter drop elimination mechanism that operates at a predetermined timing is provided on a side surface of the casing. A cutting hole formed by cutting a part of a side wall of a casing, a partial side wall member arranged to fit into the cutting hole and having the same shape and the same size as the cut hole; And a cover having a structure that allows the above-described partial side wall member to move and covers the entire periphery of the partial side wall member and the cutout hole. And a part.

[0038] Therefore, in the invention of claim 13, wherein, in addition to functioning to equivalency of the claims 1 or 2, wherein the aforementioned functions as follows.

[0039] That is, it is possible to obtain a granulated product of sludge-like materials such as quality well was granulated reduction with a uniform particle size continuously.

[0040] In the present invention of claim 14 wherein, functions as follows in addition to the configuration of the invention described in the claims as described above.

[0041] That is, taken together to form a casing in the reverse cone shape, disposing the spiral tornado fins along the inner wall of the reverse cone-shaped casing, the configuration of.

[0042] For this reason, the invention as claimed in claim 14, wherein, in addition to functions equivalent to the invention according the claim mentioned above, functions as follows.

[0043] That is, since and centrifugal force is set rolling distance granules is relatively longer becomes large, smoothness of the sludge-like quality of the granulated product materials such as (in particular, the particle size uniformity and particle surface ) Ru can be increased.

On the other hand, that-out <br/> in is possible to reduce the height of the casing without compromising the length of the helical surface of the tornado fins.

The downsizing of the whole for device becomes possible.

[0046]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.

First Embodiment (Overall Structure) In FIGS. 1 and 2, reference numeral 1 denotes a cylindrical casing. A granulation target such as a sludge-like substance that has been dehydrated into a cake is loaded (input) into the casing 1.
For carrying out granulated material (granulated material feeder) 2
It is provided at the upper end.

Here, in FIG. 1, the granulated material feeder 2 is also used as a lime charging port, but as shown in FIG. 2, separately from the granulated material feeder 2. A charging section (lime feeder) 2A for lime or the like may be provided. Further, each of the granulated material feeder 2 and the lime feeder 2A may be provided with an electromagnetically driven gate valve 2S as shown in FIG.

In the casing 1, a spiral tornado fin 3 having substantially the same structure as that of the above-described conventional example is provided.
Are rotatably arranged along the inner wall of the casing 1. Here, the diameter of the outer periphery in the rotation region of the tornado fin 3 is set to be smaller than the inner diameter of the casing 1 by about 1 to 2 [mm]. Also,
A main shaft 4 that holds the above-described tornado fins 3 and that is driven to rotate integrally with the tornado fins 3 is rotatably mounted on a central shaft portion of the casing 1.

Reference numeral 3A denotes the tornado fin 3 held at the lower end thereof and the tornado fin 3 attached to the main shaft 4.
2 shows a fin arm for fixing the fin arm. The fin arms 3A, the lower surface is set parallel to the inner bottom surface of the casing 1, the gap g _1, for example, it is set to a size of about 1-2 mm. Here, the tornado fin 3 is fixedly held on the main shaft 4 at a plurality of locations on the inner diameter side via holding arms (not shown).

When, for example, a predetermined amount of quicklime is added to a predetermined amount of dehydrated cake and kneaded in the casing, the reaction between the water in the dewatered cake and the quicklime progresses, and the sludge-like substance or the like is granulated. The granulation of the object is started, and at the same time, the rotation of the tornado fins 3 causes the dewatered cake (granulation target) to roll upward along the spiral surface of the tornado fins 3, thereby achieving good granulation. .

At the upper end of the casing 1 on the inner wall side, FIG.
As shown in FIG. 9 and FIG.
A baffle plate 9 is provided corresponding to the uppermost end surface of the spiral surface. The baffle plate 9 has a function of sweeping a granulation target, such as a granular sludge-like substance, rising on the spiral surface of the tornado fin 3 from the inside of the tornado fin 3 toward the center. . FIG. 1 illustrates a case where one baffle plate 9 is provided, but FIG. 9 illustrates an example where two baffle plates 9 are provided at 180 ° intervals.

Further, on the upper end side of the casing 1, there is provided a granulated material discharging portion 11 for discharging the sludge-like substance which has been granulated (see FIGS. 1 and 9). Reference numeral 11A indicates a discharge cover. An exhaust gas discharging unit 1 that discharges exhaust gas in the casing 1 is provided at an upper end of the casing 1.
2 are provided (see FIG. 1).

In FIG. 1, reference numeral 13 denotes a spindle drive means for driving the spindle 4 in the casing 1. The main shaft driving means 13 is fixedly provided outside the bottom surface of the casing 1 described above, and is controlled by a controller 50 described later to rotationally drive the main shaft 4 at a predetermined speed. Reference numeral 13A denotes a spindle holding unit that holds the spindle 4 rotatably. Here, the controller 50 has a function of variably controlling the rotation speed of the spindle driving means 13 (that is, the tornado fins 3) according to the water content of the granulation target.

In the tornado fin 3, the inner and outer corners are continuously cut off at the back side of the spiral surface. This effectively prevents sludge-like substances and the like from adhering to the central corners of the tornado fins 3 and, at the same time, removes granulation objects (sludge-like substances and the like) adhering to the inner wall surface of the casing 1. The outer peripheral edge of the tornado fin 3 is scraped off.

Further, in the case of dried granules or powder, the binder supply means 29 is operated to supply the binder such as water or water glass from the spray nozzle 29a provided at the upper end of the casing 1 described above. Thereby, it can be granulated in a spherical shape.

(Regarding the kneading blade)
As shown in FIGS. 3 to 6, first to third kneading blades 5, 6, 7 arranged along the bottom surface of the casing 1.
Are fixedly held on the rotation center side.

As shown in FIGS. 3 and 4, the first kneading blade 5 is fixed on the fin arm 3A from the main shaft 4 to the fin arm 3A.
And are integrally provided in the radial direction. The first kneading blade 5 has a function of pushing out sludge-like substances or the like remaining on the main shaft 4 toward the second kneading blade 6. For this reason, the first kneading blade 5 has a small turning radius and a relatively high height, whereby the first kneading blade 5 rotates integrally with the rotation of the main shaft 4 and is located on the main shaft 4 side. It has a function of pushing sludge-like substances and the like to the outer tornado fin 3 side.

Further, as shown in FIGS. 3 and 5, the second kneading blade 6 is arranged on the downstream side at an angle of about 150 ° in the rotation direction of the kneading blade 5 described above.
Here, FIG. 5 is the second view seen from the direction of arrow B in FIG.
Of the kneading blade 6 is shown. The second kneading blade 6 has an isosceles triangular shape having a bottom surface having a pointed portion on the rotation direction side, and a rear end surface forming an isosceles triangular shape. And the above-mentioned point of the bottom surface are linearly connected to form a ridge line, thereby forming distribution surfaces 6a and 6b.

The second kneading blade 6 is held close to the bottom surface by an L-shaped holding plate 6A. In the L-shaped holding plate 6A, the front edge region in the rotating direction is uniformly inclined. As a result, the second kneading blade 6 scoops up sludge-like substances and the like existing on the bottom side of the casing 1 (that is, the second kneading blade 6 is subjected to granulation of sludge-like substances and the like attached to the bottom of the casing 1). It has a function of kneading while separating the object to the center of rotation and the outer peripheral side of the rotation after the object is scooped up from the bottom surface.

Here, in the case of dried granules or powder, the binder is kneaded while adding a binder such as water or water glass from a binder supply means (spray nozzle) 29 provided at the upper end of the casing 1 described above. Similarly, the moisture content is adjusted to be suitable for granulation.

Therefore, during operation, the main shaft 4 rotates at a predetermined speed, and at the same time, the first and second kneading blades 5, 6, the fin arm 3A, the holding plate 6A, and the tornado. The fins 3 and the like shift to an integral rotation operation. In this case, when the lime for accelerating solidification is supplied at the same time, the stirring and kneading of the granulation target such as the sludge-like substance are smoothly performed together with the start of the rotation of the main shaft 4.

The addition of lime or the like causes the generation of heat and the solidification of the granulation target such as sludge-like substances.
Granulation of the granulation target is started at a predetermined timing as described later. Although the second kneading blade 6 is illustrated in FIG. 3 as being provided at one location, it may be provided at two locations 180 ° apart, for example, with a relatively low height. .

Here, in the present embodiment, the third kneading blade 7 also has a predetermined function when stirring, kneading, solidifying, and granulating a granulation target such as a sludge-like substance. Demonstrate. This third kneading blade 7 is shown in FIGS.
As shown in FIG. 3, one end is fixed to the main shaft 4 described above, the other end is extended in the radial direction of rotation, and the rotating end is formed by a plate member set to be wider than the center described above. ing. Here, FIG. 6 shows the third kneading blade 7 viewed from the direction of C in FIG.

The third kneading blade 7 is set in such a state that its tip end in the rotation direction is slightly raised, and its rotating end is bent downward. Reference numeral 7A indicates the bent portion. Further, the third kneading blade 7
Is provided with a plurality of relatively large through-holes 7a on the entire surface thereof, allowing sludge-like substances and the like to escape through the plurality of through-holes 7a.
The kneading is performed smoothly.

Further, the third kneading blade 7 has
The lower edge of the bent portion 7A and the rear edge in the rotation direction are set to the same height g ₃ (with respect to the bottom surface of the casing 1), and the lower edge and the rear edge in the rotation direction of the bent portion 7A are uneven. (Sawtooth-shaped jaggedness) is formed. Thus, the sludge-like substance and the like can be appropriately subdivided in the process of solidification of the granulation target such as the sludge-like substance. In this case, the height g ₃ of the lower end edge and the rear end edge in the rotation direction of the bent portion 7A is set to, for example, 6 [mm] according to the intended particle size, but is set to 5 [mm].
Alternatively, it may be 20 [mm] or may be set to an intermediate size.

(Regarding Large Grain Cutting Means) On the upper end side of the tornado fins 3, large granules are formed in which a granulating substance which rises while rolling along the spiral surface of the tornado fins 3 is cut into a predetermined size. Means 15 are provided.

As shown in FIG. 1, FIG. 7 and FIG. 8, the large grain engraving means 15 is provided along the spiral surface of the tornado fin 3, and is fixedly mounted on the tornado fin 3 at a predetermined interval from each other. (Four in FIG. 7) cutter members (needle with a sharpened tip) C ₁ , C ₂ , C
₃ and C ₄ . The cutter members C ₁ , C ₂ , C ₃ , and C ₄ rotate integrally with the tornado fin 3.

For this reason, the needle-shaped cutter member C
₁ , C ₂ , C ₃ , and C ₄ may be provided at any positions of the tornado fins 3 that are considered necessary. The distance between the respective cutter members C ₁ -C ₄ and the side wall of the casing 1 mentioned above is set so as to gradually become smaller as it goes upward. This is shown in FIGS. That is, first the large granulated sludge-like substance or the like is first somewhat cut by the cutter member C ₁ (see FIG. 7). Thereafter, as it rolls upward, it is cut little by little by the cutter members C ₂ and C ₃ , and finally is set to a final size by the cutter member C ₄ .

(Regarding the small-diameter grain drop elimination mechanism) As shown in FIG. 1, a predetermined timing is applied to the region where the large grain slicing means 15 (or 16) is provided or the side wall portion of the casing 1 located above the area. An operating small-diameter grain drop elimination mechanism 18 is provided.

As shown in FIG. 9, the small-diameter grain drop elimination mechanism 18 is provided with a cutout 18A formed by cutting off a part of the side wall of the casing 1 described above, and is disposed so as to fit into the cutout 18A. A side wall member 18B having the same shape and the same size as the cutout hole 18A, a side wall member drive mechanism 18C for moving the side wall member 18B outward in the radial direction of the casing 1 or returning the side wall member 18B to the original position;
The side wall member 1B is allowed to move and the side wall member 1
8B and a cover case 18D having a structure that covers the entire periphery of the above-described cutout hole 18A.

When the small-diameter grain drop elimination mechanism 18 is operated, the side wall member 18B is urged by the side wall member drive mechanism 18C to move outward along the radial direction of the casing 1 (see FIG. 1). Thus, the gap S between the outer periphery of the tornado fin 3 and the inner wall surface of the casing 1 is widened. Here, reference symbol E indicates a non-operation position.

For this reason, small-diameter granular materials fall from the widened gap S. In this case, a configuration is adopted in which, for example, the target minute-diameter particles are those having a diameter of 1/4 or less of the finally intended granular material. That is, here, the gap S is set to S = D / 4, where D is the diameter of the finally intended granular material.

When the small-diameter granule drop elimination mechanism 18 is actuated to drop and remove the fine-diameter granules, the granule discharge section 11 provided on the upper side surface of the casing 1 described above is subsequently operated. Operate.

(Regarding Granulated Material Discharge Portion) As shown in FIGS. 1 and 9, the above-described granulated material discharge portion 11 uses the upper end portion of FIG. A discharge cover 11A which is opened and closed and operates, and a granulated material guide portion 11B for guiding the granules to fall in a predetermined direction when the discharged cover 11A is set to the open state and the granulated material is discharged. It is provided with a configuration. In FIG. 1, the granulated material guide portion 11B is provided with the discharge cover 1 described above.
It has a structure that covers the entire 1A. Here, code 1
1Ba indicates a granulated material discharge port of the granulated material guide portion 11B,
Reference numeral 11C indicates a lid member for opening and closing the granulated material discharge port 11Ba (see FIG. 1).

The granulated material discharged from the granulated material discharge section 11 is conveyed by a conveyor belt 61 provided below, for example, as shown in FIG. 2, and passes through a necessary drying section and a measuring section. They are sequentially stored in a predetermined storage bag and packed.

(External Member of Casing, etc.) The above-described casing 1 is held by a casing holder 14. This casing holder 14 is
Each leg 14A provided at the four corners is mounted on the floor via a load cell LC. In this case, the load cell LC
Are the casing holder 14 and the casing holder 1
4 has a function of constantly sending a signal corresponding to the entire weight of the casing 1 and the like to a controller 50 described later.

In this case, the controller 50 calculates the current water content based on the weight information sent from the load cell LC.

More specifically, when the amount of lime to be charged, the amount of sludge-like substance, etc., and the initial moisture content of the sludge-like substance, etc. are clear, the water evaporates as the stirring and kneading progress. The inventors have experimentally confirmed that the water content decreases as a whole and the weight also decreases at the same time.

In the present embodiment, the calculation of the water content of this method is also embodied. That is, information such as the amount of lime to be supplied, the amount of sludge-like substance, and the initial moisture content of the sludge-like substance is input to the controller 50 in advance. As a result, based on the weight information from the load cell LC, the controller 50 can execute a predetermined calculation to calculate and output real water content information in real time.
Reference numeral 50A denotes a moisture content display section for displaying a change in moisture content and the like.

The controller 50 can control the operation of each exterior member based on the calculated water content of sludge-like substances and other information as described later. Furthermore, at the upper end of the casing 1 described above,
As shown in FIG. 2, a pressure feed pump (for example, a displacement type pressure feed pump) 24 for feeding predetermined air into the casing 1,
Air sending means 26 for sending the air in the casing 1 to the outside via the deodorizing means 25 is provided.

Here, the pressure pump 24 is mainly used for discharging mainly steam from the casing 1 generated by charging lime or the like. In this case, the pump 24
Alternatively, hot air may be sent into the casing 1.

The above-mentioned casing 1 may be configured to be heated by steam or electric heating means as required. Reference numeral 28 denotes a band heater as electric heating means provided around the lower end of the bathtub (casing 1) and on the outer bottom surface. This band heater 2
8 is appropriately driven and controlled by a controller 50 described later, and can be used for adjusting the water content.
Further, when adjusting the water content, the controller 50 may be configured to send steam, spray water, hot air, or external air toward the inside of the tank (the inside of the casing 1) under the control of the controller 50.

In the above-mentioned deodorizing means 25 and air sending means 26, the water in the granulation target such as sludge-like substance was vaporized by the heat of reaction without operating the pressure feeding pump 24. It may be configured to discharge to the outside by the vapor pressure generated in the case.

In FIG. 2, reference numeral 27 denotes an exterior member support frame. The exterior member support frame 27 includes the above-described granulated material feeder (granulated material carry-in section) 2, lime input section (lime feeder) 2A, deodorizing means 25, and the deodorizing means 25.
Air sending means 26 for forcibly discharging the internal air to the outside through the air, and a pressure pump 24 for forcibly supplying hot air
And so on.

That is, in the present embodiment, many exterior members provided in the casing 1 described above are supported by the exterior member support frame 27, so that the weight of the exterior member is not directly added to the casing 1. It is characterized by the fact that

Here, between each of the above-mentioned granulated material feeder 2, the lime charging section (lime feeder) 2A, the deodorizing means 25, the air sending means 26 and the pressure pump 24 and the casing 1 are shown in FIG. As shown, a rubber bellows 10 as a bellows mechanism is interposed. The inside of the rubber bellows 10 is sealed from the surroundings. Also,
As shown in FIG. 10, by equipping the in-tank pressure gauge 30C, the bellows area is multiplied by the in-tank pressure gauge 30C, and the reaction force can also be calculated by the controller 50.

As a result, it is possible to effectively avoid applying extra weight to the load cell LC that constantly outputs weight information, and to change the internal weight of the casing 1 (ie, change the moisture content of the granulation target). ) Can be immediately detected with high accuracy by the load cell LC.

In FIG. 1, reference numeral 29a denotes a spray nozzle for injecting a predetermined liquid binder such as water. The spray nozzle 29a is provided with a binder supplying means 29 (FIG. 10) for supplying a binder such as predetermined water through a pipe 29A.
(See Reference). Then, a controller 50 to be described later is operated as necessary, and the spray nozzle 2 is operated.
9a is driven to open and close, whereby the water content in the granulation target such as sludge-like substance can be adjusted.

(Regarding Driving / Control System) In FIG. 10, reference numeral 50 denotes a controller. The controller 50 controls the drive of the spindle 4 at a predetermined speed via the spindle drive means 13 described above. Also, this controller 50
Has a function of individually setting and controlling the operation timing of each unit described above (by issuing a predetermined command from the driver unit to the corresponding unit).

[0091] For example, with respect to the input of the dehydrated cake or lime and the operation timing of each part, the above-described operation is performed after a predetermined time has elapsed after a predetermined amount of quicklime was added to the dehydrated cake in the casing 1 and the hydration reaction was started. The small-diameter particle drop elimination mechanism 18 is set to an operating state. Further, after setting the operation state of the small-diameter particle drop elimination mechanism 18, the controller 50 controls the opening of the discharge cover 11 </ b> A of the above-described granulated material discharge section 11 (see FIG. 9) via a driving unit (not shown). It has a cover opening control function.

The casing 1 has a bath temperature sensor 30 for constantly measuring the temperature inside the casing 1.
A, a humidity sensor 30B in the tank for constantly measuring the humidity in the casing 1 is provided, and a band heater 28 as an electric heating means for maintaining the casing 1 at a predetermined temperature for a predetermined time is provided as described above. (See FIG. 1).
Among them, the temperature sensor 30A in the tank and the humidity sensor 3 in the tank
The output information of 0B is always sent into the controller 50. Then, based on the information, for example, the set temperature of the band heater 28 is calculated in accordance with a predetermined standard, and further, it is possible to appropriately drive and control other necessary exterior members. In this case, kneading
When only granulation is intended, the small-diameter particle drop elimination mechanism 18 described above does not need to be particularly provided.

Next, the overall operation of the above embodiment will be described. Here, the granulation target such as the above-mentioned sludge-like substance will be described, for convenience of explanation, by limiting to a dewatered cake obtained by dewatering sewage sludge.

First, quicklime was added to the dewatered cake obtained by dewatering the sewage sludge, and the hydration reaction “Ca0 + H ₂ O = Ca
(OH) ₂ +15.2 [kcal] ”and dehydration due to water evaporation and compound formation due to heat generation. Here, granulation and sizing are performed in this dehydration process. The present embodiment is characterized in that a tornado fin 3 is used, and large damping means larger than a predetermined size and means for dropping and removing small particles that are too small and close to powder are provided. Another feature is that grains falling within a predetermined size range are taken out at a predetermined granulation completion time.

Further, in this embodiment, the water content after dehydration is about to be about 70 to 90%. The amount of lime input to the dehydrated cake varies depending on the moisture content of the dehydrated cake, the amount of CaO in commercial quicklime, and the like.

As described above, the main shaft 4 for rotating the tornado fins 3 is provided in the processing tank (casing 1) which enables processing such as kneading and sizing, and a lower portion of the processing tank (casing 1). The rotational force is given by the spindle drive means 13 depicted in FIG. The sludge-like material and the lime of the granulated material are charged in advance from the charging port (dewatering cake feeder 2A) or batchwise during the rotation operation. Here, the controller 50 calculates the amount of the granulation target in the casing 1 based on the information from the load cell LC (FIG. 1).
1, Step S1).

In the tornado fins 3, the granulated material (granulated object) is initially moved upward by the tornado fins 3, returned to the main shaft 4 side (central portion) by the upper baffle plate 9, and dropped. By repeating this state, kneading is performed (FIG. 11, step S2). Here, when the granulation target is a powder, for example, after adding water,
Enter the kneading operation. If the water evaporation of the dehydrated cake has progressed excessively (or if the drying has progressed too much due to the addition of a large amount of lime), the spray nozzle 29 forming the main part of the above-mentioned binder supply means enters the casing 1. Spray with water.

When the water content of the granulated material is in an appropriate state,
The spiral surface of the tornado fin 3 becomes a rolling surface to promote granulation (FIG. 11, step S3).

In this granulation stage, the controller 50
Activates the small-diameter grain drop elimination mechanism 18. As a result, a substance (granulated substance) smaller than a predetermined diameter is dropped, and the particle diameter is again adjusted to an appropriate particle size by combining the small particles. In the middle of the tornado fin 3, the cutter C
₁ -C ₄ is provided, large particle size ones rises been trimmed gradually to a predetermined diameter (for example, about 6 mm.) (Figure 11, step S4).

The particles pass through the small-diameter particle drop elimination mechanism 18, are sized, and are discharged to the outside without falling. Here, the timing of the opening / closing operation of the discharge cover 11A is controlled by the controller 50, and the granulated material discharge unit 11 is opened after the start of the granulation process (FIG. 11, step S5). After discharging, the product becomes a final product after bagging through a drying process and the like. FIG. 11 shows a series of these operation steps.

When the granulated material is discharged, the controller 5 receives the information from the load cell LC again as described above.
0 calculates the weight of the granulation target in the casing 1 and grasps the amount of the remaining granulation target to prepare for next (FIG. 11, step S6).

This method is characterized in that the fin arm 3A and the tornado fin 3 and the self-cleaning action in the processing tank (casing 1) can withstand long-term batch processing.

Here, a band heater 28 as heating means provided around the bottom of the casing 1 and outside the bottom is provided.
When this is activated at a predetermined timing during kneading,
The deposits on the inner wall in the casing 1 are dried and easily peeled off, which is convenient for scraping off. In this case, if kneading is continued while the deposits on the inner wall are left, the load increases, the power consumption increases, and the durability of the entire apparatus deteriorates. Can improve it.

Also, the kneading blade 7 has a function of breaking large lumps that cannot lift the tornado fins 3 (during the rotation, tearing or crushing at the uneven portion at the lower edge).
Is also an important factor.

The granulation time is based on the assumption that the moisture in the dewatered cake is known in advance. If the amount of lime is clear, the load cell LC for measuring the weight of the entire apparatus is used.
Is determined based on the weight information from. That is, the amount of water evaporation can be monitored, and the determination can be made at a predetermined weight loss. In addition, the reaction heat can be monitored, and it can be judged from the transition of the temperature rise (since the required amount of water evaporation is proportional to the amount of heat generation). If the kneading conditions are the same (if there is no change over time), the determination may be made only based on the elapsed time from the lime introduction.

Further, the suitable time for granulation is obtained when the dehydrated cake having a moisture content of about 80% is reacted with quicklime to release the steam generated in the stirring tank (casing 1) to the outside. It can be obtained in advance by experiment from the information shown in FIG. 12, that is, the temperature transition of the reaction tank (casing 1). These data are stored in a memory (not shown), and are used by the controller 50 as timing setting for starting the operation of the small-diameter particle drop elimination mechanism 18 or timing setting for starting the discharging operation of the granulated material discharging unit 11.

In order to ensure that the granulation is performed, the water content of the granulation material (granulation target), the structure of the device for promoting the granulation action on the granulation target, and the appropriate It is important to select parameters such as a rolling motion speed and a rolling motion distance. The moisture content of the granulated material varies greatly depending on the structure of the treatment tank (casing 1). In other words, it depends on whether it is a structure that actively condenses the generated steam or a structure that discharges or sucks the steam. Therefore, based on the structure, an appropriate amount of lime is added to the dehydrated cake, and after a predetermined time has elapsed after the start of the hydration reaction. It is important to consider the moisture content suitable for granulation.

When the moisture content of the dehydrated cake varies greatly, it is important to reduce the amount of water in addition to the hydration reaction by reducing the amount of lime. For the material with a low moisture content, lime is added, and for the material with a high moisture content, measures to reduce the moisture are directly heated or performed by hot air blowing, and at the same time, the moisture content is reduced using the load cell LC described above. Can be measured, and appropriate measures can be taken based on this.

On the other hand, on the other hand, the amount of lime according to the granulated material (granulation target) having a high water content is charged, and after drying, the water is sprayed to granulate. You may. In this case, the water content of the granulated material (granulation target) which is the dewatered cake is not clear, but empirically (experimentally) about 6% in consideration of the performance of the dewatered cake and the measurement accuracy of lime mass and the like. Will vary.

If the water content varies (the former case), one method is to perform acoustic analysis of the granulated material (granulated object) falling on the baffle plate 9. If you pay attention, you can catch the falling sound of the dried grains. Also, the granulation completion time can be determined by the increase in the sound level in another frequency range. The determination can also be made by monitoring the motor current of the drive motor of the tornado fin 3.

[0111] The granulation completion time can also be confirmed by a hygrometer provided in the casing 1 (equipped with an air blow so that water droplets do not adhere, and a heater with a heater for burning the attached dust and the like is used). . The moisture content of each granule of the granulation target can be measured in a non-contact manner using infrared rays. Further, an image processing apparatus may be incorporated to directly take out the granulation process using information.

On the other hand, when the water content is large (the latter case), the first drying is performed by controlling the time.
It can be easily performed without any skill. Then, as in the case described above, the appropriate water injection amount is determined by acoustic analysis, motor current monitoring, a method using a hygrometer,
It is determined by specifying the moisture content by non-contact direct measurement of moisture content using infrared rays, a method depending on an image processing device, or the like. The same applies to the determination of the granulation completion time.

In the above-described embodiment, the internal air (steam) is sucked and discharged by a pressure pump until the water content reaches a predetermined value, or hot air or steam is pumped from the outside and granulated. When the member reaches the appropriate moisture content, pumping or suction will be stopped. When the amount of lime is small, it is necessary to use a heat source such as a heater.

FIG. 2 shows an example of connection between the processing tank (casing 1) and an external unit. Here, reference numeral 10 denotes a rubber bellows as a bellows mechanism. The rubber bellows 10 is interposed to interrupt the gravity so that the unit connected and mounted thereon does not load the load cell LC. The amount of dewatered cake DW [k]
g] is measured, and a lime amount SW [kg] corresponding thereto is added, and the grain discharge port 11Ba is closed.

In one example, the steam generated by the heat of reaction raises the pressure and is discharged through the deodorizing section 12, and a part of the generated steam is condensed in the processing tank (casing 1) to form the material to be granulated. Increase the moisture content. When the generated steam is in such a state, if the moisture content of the dewatered cake is known, the controller 50 calculates the moisture content in the processing tank from the change in the weight data obtained from the load cell LC. Then, when the water content reaches the appropriate value, it is used as the timing setting of the operation start of the small-diameter particle drop elimination mechanism 18 or the timing setting of the start of the discharge operation of the granulated material discharge unit 11 as described above.

Further, in the above embodiment, the load torque applied to the spindle drive motor changes remarkably between the case where the granulation material (granulation target) is caked and the case where the granulation material is granulated. If the granulated material is cake-like 20 minutes after the start of the reaction, a slight predetermined amount of lime is charged, the state is further observed for about 20 minutes, and then the heater 28 is turned on (ON) for the first time. Good.

Further, in the above embodiment, the case where the sludge material is targeted as the material to be granulated (granulation target) is exemplified. It can be applied to the substance as it is. In addition, even when a dried powder is used as a granulated substance, the whole can be applied as it is by appropriately supplying water.

Thus, in the above embodiment, the first to third kneading blades 5 to 7 and the tornado fins 3 double the granulation effect by rolling, and the tornado fins 3 The moving surface is configured to crush large granules during rolling and ascending, so that even if the amount of treatment in the tank is large, the sludge-like material that has been dehydrated and caked can be stirred and kneaded. And the granulation and sizing can be performed efficiently.

Since the tornado fins 3 are provided with the large-graining means 15 for sizing, the sizing can be performed together with the granulation without changing the size of the whole apparatus. Compared with the conventional example requiring a large number of places, the entire device can be reduced in size and multifunctional.

For this reason, in the case of agricultural chemicals, fertilizers, ceramics and the like, powder (fine dust) or dehydrated cake is formed into granules or granules,
This prevents scattering (reduces the loss of scattering and does not pollute the work environment) and increases the bulk density (storage, supply, packaging,
Easy handling in transportation, etc.), prevention of aggregation, deterioration and adhesion,
There is an advantage that the appearance can be improved and the fluidity can be improved (the bridge phenomenon does not occur in the hopper).

Here, in the above embodiment, the stirring and
Although the case where the first to third kneading blades 5 to 7 for kneading are provided is illustrated, the first to third kneading blades 5 to 5 are used for dewatered cake and quicklime having an appropriate moisture content.
7 is removed and only the tornado fins 3 are provided, and after the dehydrated cake and quick lime are charged, the tornado fins 3 are rotated at an appropriate speed, so that the stirring and kneading can be effectively performed.

In the first embodiment, a case where various exterior members are provided on the exterior member support frame 27 and the casing and the casing 1 are connected by the rubber bellows 10 is exemplified. However, the above-mentioned various exterior members may be directly mounted on the casing 1 so that the exterior member support frame 27 and the rubber bellows 10 may be omitted.

[Second Embodiment] Next, a second embodiment will be described with reference to FIGS. This second embodiment is different from the above-described large-graining means 15 shown in FIGS.
3 shows another example.

The large grain cutting means 16 shown in FIGS. 13 to 15 is provided along two spiral bars of the tornado fin 3 and fixed to the tornado fin 3 with two hanging bars 16A and 16B. This hanging bar 16A, 1
6B and a bar cutter 16C held at 6B.
The distance between the bar cutter 16 </ b> C and the side wall of the casing 1 is set to be gradually smaller as it goes upward (in the rolling direction of the granular material). Also, the bar cutter 16
The interval between C and the spiral surface is also set so as to be gradually smaller (narrower) continuously as it goes upward (in the rolling direction of the granular material).

Here, two hanging bars 16A, 16B
As shown in FIG. 13, the bar cutter 16C is slightly bent once downward from the end face on the inner diameter side of the tornado fin 3 toward the center axis side, and then slightly bent downward. It is disposed diagonally downward and toward the side wall of the casing 1, and extends from the middle to the other hanging bar 16B again as shown in FIG. 10, and is connected to the hanging lower end of the hanging bar 16B.

FIG. 15 is a view showing the positional relationship between the bar cutter 16C and the tornado fins 3 and the side wall of the casing 1 (a view when viewed from the right side in FIG. 14). For this reason, as shown in FIGS. 13 to 15, in the process of rolling along the bar cutter 16C, the formed granules Q having a large particle size roll on the spiral surface with the rotation of the tornado fin 3. It is gradually cut away by this
3 is granulated as a granular material Q located at the right end.
The other configuration and the operation and effect are the same as those of the first embodiment.

In this case, the same operation and effect as those of the first embodiment are obtained.
6 is constituted by a continuous rod-shaped member, so that the durability of the large-graining means 16 can be increased.

[Third Embodiment] Next, a third embodiment will be described with reference to FIGS. The third embodiment shows still another example of the large-graining means 15 (see FIG. 7) in the first embodiment.

The large-graining means 20 shown in FIGS. 16 and 17 is composed of a comb-shaped filter 21 fixedly mounted on the uppermost spiral surface of the tornado fin 3 at a predetermined interval L, and And a chopper mechanism 22 arranged corresponding to the filter 21.

Of these, the comb filter 21 has five comb blades 21a in this embodiment. The comb filter 21 is parallel to the central axis of the casing 1 and protrudes obliquely rearward (downstream) from the casing 1 toward the center of the casing 1, thereby coming into contact with the comb filter 21. The particulate matter Q is sent out in the direction along the tornado fins 3 and toward the center of the casing 1.

The chopper mechanism 22 has a plurality of stages (FIG. 1).
Rotating blade 2 as a cutter consisting of three blades (five stages in 4)
2a. Each of the rotary blades 22a bites into a space between the blades of the comb filter 21 described above, and the space is engaged with the comb filter 21 as a part of the rotation plane.

Here, reference numeral 22A denotes a hanging support shaft that holds and rotates the rotary blade 22a. Also, reference numeral 2
Reference numeral 3 denotes a shaft holder that rotatably holds the hanging support shaft 22A, and reference numeral 24 denotes a drive motor that is controlled by control means (not shown) to rotate and drive the hanging support shaft 22A. Further, in FIG. 13, three rotary blades 22a are provided in each stage, but one or two rotary blades 22a may be provided. Also,
The number may be four or more. The symbol K indicates the center axis of the casing 1.

In this way, the large lumpy granular material (granulated material) Q rolled along the spiral surface of the tornado fin 3 comes into contact with the five comb blades 21 a of the comb filter 21. It is guided to the central axis side of the casing 1 while being somewhat crushed, but at the same time, is reduced into small particles Q of a predetermined size by a chopper mechanism 22 provided in advance therein,
The casing 1 is sent downward toward the center. Hereinafter, this is performed continuously.

In this case, the size (grain size) D of the small-granulated particles Q is determined by the distance L between the comb blades 21a. Specifically, since the cutting is forcibly performed by the rotary blade 22a, the size becomes “D = L / 2 or less”. About this dimension "L", for example, 3 [mm]-
An arbitrary size such as a predetermined value within 20 [mm] is set in advance. The other configuration and the operation and effect are the same as those of the first embodiment.

Here, in the third embodiment,
The rotating surface of the rotary blade 22a of the chopper mechanism 22 (the rotary blade 22
The case where the chopper mechanism 22 is provided such that the projection surface of the rotation surface of (a) is apart from the inner diameter side edge of the spiral surface of the tornado fin 3 and located at the center axis has been exemplified. The rotating surface of the rotary blade 22a may be arranged such that the projection surface of the rotating surface of the blade 22a overlaps the spiral surface of the tornado fin 3 (that is, between the spiral surfaces of the tornado fin 3).

In this case, the same function as that of the first embodiment described above is obtained. In addition, while the large-sized granules Q having the same particle size exist on the spiral surface of the tornado fin 3, the large particles Q Since the chopper mechanism 22 can easily catch the rolling large grains, it is possible to surely subdivide the large-sized granulated material Q.

[Fourth Embodiment] Next, a fourth embodiment will be described with reference to FIGS. The fourth embodiment shown in FIGS. 18 and 19 shows a modified example of the large grain engraving means 20 in the third embodiment (FIGS. 16 and 17).

The large grain engraving means 25 in the fourth embodiment is such that when not in use, the comb filter 21 is removed from the spiral surface of the tornado fin 3 and moved to the main shaft 4 side. Here, FIG. 19 shows a schematic configuration of a mechanism for moving the comb filter 21.

In this FIG.
Are the comb filter 21 and the chopper mechanism 22 described above.
And a holding case 25A for holding the
Tubular member 25 for hanging down the end on the main shaft 4 side described above.
B, and a rotation holding substrate 25C for fixing and holding the upper end of the tubular member 25B in FIG. The above-mentioned comb filter 21 is fixedly held on the rotation end side of the holding case 25A via a spacer 25Aa. In addition, the chopper mechanism 22 is provided so as to be engaged with the comb filter 21 described above and to be rotatable on the central axis of the tubular member 25B described above.

Further, the above-mentioned rotation holding substrate 25C is rotatably mounted on the upper end surface of the above-mentioned casing 1 via a bearing 25D. Therefore, when the rotation holding substrate 25C is rotated on the above-described casing 1, the holding case 25A suspended from the tubular member 25B is held.
This also rotates around the tubular member 25B, so that the above-mentioned comb filter 21 can be detached from the spiral surface of the tornado fin 3.

Here, reference numeral 26 denotes a rotation holding substrate 25C.
2 shows a holding substrate drive motor for urging a predetermined rotation operation. The rotational force of the holding substrate drive motor 26 is transmitted from the driving gear 26a to the driven gear 26b fixed to the rotation holding substrate 25C described above, whereby the rotation holding substrate 25C (that is, the holding case 25A is ), The comb-shaped filter 21 is rotated by a predetermined angle and detaches from the spiral surface of the tornado fin 3 as described above, or is disposed on the uppermost spiral surface of the tornado fin 3. . Reference numeral 26A denotes a holding table that holds the holding substrate drive motor 26.

A chopper drive shaft 27a for rotating the chopper mechanism 22 is provided in the tubular member 25B, and the chopper drive motor 27 for rotating the chopper drive shaft 27a is connected to the rotation holding substrate 25C. Equipped on top. Accordingly, the rotation holding substrate 25C is rotatably driven by the holding substrate drive motor 26 with the chopper drive motor 27 installed.

Then, the above-described holding substrate drive motor 2
The rotation of the motor 6 and the chopper drive motor 27 is controlled by the controller 50 described above. Thus, the timing of starting and stopping the operation of the chopper driving motor 27, the rotation speed, the timing of shifting the chopper mechanism 22, and the like are executed according to a preset program. Here, the comb filter retreating mechanism is constituted by the whole of the constituent members except the comb filter 21 and the chopper mechanism 22 among the respective constituent members constituting the above-mentioned large grain notch means 25. Other configurations are the same as those of the third embodiment shown in FIGS.

In this manner, the same operation and effects as those of the third embodiment described above can be obtained, and in particular, the operation of the large-graining means 25 for the viscous granular material during the granulation process can be ensured. In this way, the granulated object having a large viscosity can be prevented from being caught by the chopper mechanism 2.
An increase in the load due to adhering to the filter 2 or the comb filter 21 can be effectively eliminated in advance, so that inconvenience such as a temporary stoppage of the operation of the entire apparatus due to the increase in the load can be eliminated. In this respect, there is an advantage that work efficiency can be improved as a whole.

[Fifth Embodiment] Next, a fifth embodiment will be described with reference to FIGS. The fifth embodiment shows still another example of the large grain slicing means 20 (see FIG. 16) in the third embodiment.

The large grain slicing means 30 shown in FIGS. 20 to 22 are arranged at predetermined intervals on the uppermost spiral surface of the tornado fin 3 in the same manner as the large grain slicing means 20 shown in FIG. Comb-shaped filter 31, and a filter terrace portion 32 hanged down from a portion of the comb-shaped filter 31 protruding from the tornado fin 3 described above.
And a chopper mechanism 33 arranged corresponding to the comb filter 31 and the filter terrace 32. Here, the chopper mechanism 33 is provided to hang down from the upper end of the casing 1.

The filter terrace 32 shown in FIGS. 20 to 22 is provided in two stages, upper and lower, and each stage is provided with three comb blades 32a at equal intervals in a horizontal plane. I have. And these comb blades 32a are
As shown in the figure, the tornado fin 3 is provided so as to protrude toward the upstream side in the rotation direction.

The spacing between the comb blades 32a in the horizontal plane in FIG. 20 and the comb blades 31 provided in the comb filter 31 and the filter terrace 32 are provided.
The distance between the a and the comb blade 32a in the vertical plane in FIG. 21 is L as in the case of FIG.
Is set to

The chopper mechanism 33 has a plurality of stages (FIG. 1).
Rotating blade 3 as a cutter consisting of three blades
3a. Each of the rotary blades 33a is connected to the comb filter 31 and the filter terrace 32 described above.
And is engaged with the comb filter 31 and the filter terrace 32 as a part of the rotation plane.

Further, as the rotary blade 33a of the chopper mechanism 33 composed of three blades, one curved knife-shaped rotary blade is disclosed in FIG. 15, and the other is omitted. Other configurations are the same as those of the third embodiment shown in FIGS. 16 and 17 described above.

With this arrangement, the same operation and effect as those of the third embodiment shown in FIGS. 16 and 17 can be obtained, and the large particles that have once dropped (separated) from the comb filter 31 can be obtained. The granulated material Q can be refined by the chopper mechanism 33 in a state of receiving the granulated material Q, and the large-sized granulated material Q can be efficiently refined.

Here, the shape of the tip of each of the blades 31a and 32a of the comb filter 31 and the filter terrace 32 described above is shown in FIG. Also, the comb filter 31
Comb blade 31a and the rotary blade 33 of the aforementioned chopper mechanism 33
The cross-sectional shape of “a” is shown in FIG. The other configuration and the operation and effect are the same as those of the third embodiment.

[Sixth Embodiment] Next, a sixth embodiment will be described with reference to FIG. The sixth embodiment shown in FIG. 23 is the same as the fifth embodiment (FIGS.
This shows a modified example of the large grain engraving means 30 in 2).

23 (sixth embodiment) is such that the comb filter 31 is removed from the spiral surface of the tornado fin 3 and shifted to the main shaft 4 side when not in use. . Here, as a mechanism for shifting the comb filter 31, the above-described mechanism shown in FIG.
The same mechanism as that provided in the case of the large grain scribing means 25 disclosed in FIG. 9 is used in its entirety. Other configurations are the same as those of the fifth embodiment shown in FIGS. 20 to 22 described above.

In this way, the same operation and effect as those of the fifth embodiment described above are obtained, and in particular, the operation of the large-graining means 35 for the viscous granular material during the granulation process is ensured. In this way, the granulated object having a large viscosity can be prevented from being caught by the chopper mechanism 3.
It is possible to effectively eliminate in advance the increase in the load due to the attachment to the 3, 32 or the comb filter 31, thereby eliminating the inconvenience of temporarily stopping the operation of the entire apparatus due to the increase in the load. In this respect, there is an advantage that work efficiency can be improved as a whole.

[Seventh Embodiment] Next, a seventh embodiment will be described with reference to FIGS. The seventh embodiment shows still another example of the large grain slicing means 20 (see FIG. 16) in the third embodiment.

The large grain notching means 40 shown in FIGS. 24 and 25 is similar to the large grain notching means 20 shown in FIG. 16 in that a part of the rotary blade portion is formed on the uppermost spiral surface of the tornado fin 3. The chopper mechanism 41 is provided in an extended state, and a comb-shaped filter 42 hanging down and fixed to the casing 1 corresponding to the chopper mechanism 41 is provided.

Among them, the chopper mechanism 41 is equipped with a hanging support shaft 41A which is driven to rotate by driving means (not shown) and a plurality of stages (four stages in this embodiment) at equal intervals on the hanging support shaft 41A. And a plurality of rotating blades 41B as cutters. The rotary blade 41B of each stage is
Four are mounted on the same rotating surface at equal intervals. Further, each of the rotary blades 41B has the above-described hanging support shaft 4 having the rotation radius.
The length of the portion protruding from 1A is formed to be longer than the width of the spiral surface of the tornado fin 3 described above, and its tip is bent by approximately 90 ° in the rotational direction.

The chopper mechanism 41 has its hanging support shaft 4
1A is rotationally driven in a direction indicated by an arrow f at a predetermined speed (variably controlled as necessary) by a drive motor (not shown).

The above-described comb filter 42 is the same as that shown in FIG.
As shown in FIG. 4, a plurality of (four in this embodiment) comb blades 42 a are provided between the main shaft 4 and the tornado fins 3 and protrude toward the chopper mechanism 41. Each of the comb blades 42a is provided at equal intervals in the vertical direction, and its tip end is disposed so as to bite into a space set between the rotary blades 41B of each stage of the chopper mechanism 41. I have.

For this reason, as shown in FIG. 24, after each rotary blade 41B captures the granulated material Q rolling on the spiral surface,
It is pulverized by the comb filter 42 and further refined. That is, in FIGS. 24 and 25, by setting the rotational peripheral speed of the hanging support shaft 41A of the chopper mechanism 41 to be somewhat faster than the moving speed of the granulated material Q, the rotary blade It is possible to selectively crush particles of a size that cannot pass through the gap of the rotary blade 41B, while avoiding damage due to the collision of 41B. In addition, since a longer time is required for the comb-shaped filter 42 to engage with the plurality of comb blades 42a, the particle size selection by the rotary blade 41B can be clearly performed.

Here, each of the chopper mechanisms 41 and the comb-like filters 42 are mounted from the upper end of the casing 1. Other configurations and their effects are as follows:
This is the same as the third embodiment described above.

[Eighth Embodiment] Next, an eighth embodiment will be described with reference to FIGS. The eighth embodiment shown in FIGS. 26 and 27 shows a modified example of the large grain engraving means 40 in the above-described seventh embodiment (FIGS. 24 and 25).

The large grain notch means 45 in the eighth embodiment is such that the chopper mechanism 41 is removed from the spiral surface of the tornado fin 3 and shifted to the main shaft 4 side when not in use. FIG. 26 is an explanatory diagram showing an operation for shifting the chopper mechanism 41. FIG. 27 shows a schematic configuration of a means for shifting the chopper mechanism 41.

In FIG. 27, the large-grain chopping means 45
Is a holding case 45A for holding the above-mentioned chopper mechanism 41 hanging down on the tornado fin 3 side,
5A includes a tubular member 45B for hanging down and holding the above-described end of the main shaft 4 side, and a rotation holding substrate 45C for securely holding the upper end of the tubular member 45B in FIG.

Further, the above-mentioned rotation holding substrate 45C is rotatably mounted on the above-mentioned upper cover member of the casing 1 via a bearing 45D. Therefore, when the rotation holding substrate 45C is rotated on the above-described casing 1, the holding case 45A suspended from the tubular member 45B is held.
The chopper mechanism 41 also rotates about the tubular member 45 </ b> B so that the chopper mechanism 41 can be separated from the spiral surface of the tornado fin 3.
In FIG. 26, the solid line indicates a position where the chopper mechanism 41 is separated from the spiral surface of the tornado fin 3.

Here, as shown in FIG. 27, reference numeral 46 denotes a holding substrate drive motor for urging the rotation holding substrate 45C to perform a predetermined rotation operation. The rotational force of the holding substrate driving motor 46 is transmitted from the driving gear 46a to the driven gear 46b fixedly mounted on the rotation holding substrate 45C described above, whereby the rotation holding substrate 45C (that is, the tubular member 45B is moved). The holding case 45A is rotated by a predetermined angle, and the chopper mechanism 41 is separated from the spiral surface of the tornado fin 3 as described above, or is disposed on the uppermost spiral surface of the tornado fin 3. It has become. Reference numeral 46A denotes a holding table that holds the holding substrate drive motor 46.

A chopper drive shaft 47a for rotating the chopper mechanism 41 is provided in the tubular member 45B, and the chopper drive motor 47 for rotating the chopper drive shaft 47a is connected to the rotation holding substrate 45C. Equipped on top. Accordingly, the rotation holding substrate 45C is rotatably driven by the holding substrate drive motor 46 with the chopper drive motor 47 installed.

Further, in the holding case 45A described above,
A belt mechanism 41A for transmitting the rotational force of the chopper drive shaft 47a to the above-described chopper mechanism 41 is provided. The driven pulley 41Ab rotates around the driving pulley 41Aa of the belt mechanism 41A, and the chopper mechanism 41 directly connected to the shaft of the driven pulley 41Ab also rotates integrally.

Then, the above-described holding substrate drive motor 4
The rotation operations of the controller 6 and the chopper drive motor 47 are controlled by the controller 50 described above. That is, the timing of starting and stopping the operation of the chopper drive motor 47, the rotation speed, the timing of shifting the chopper mechanism 41, and the like are executed according to a preset program.

Here, of the constituent members constituting the above-mentioned large grain engraving means 45, a chopper retreat mechanism is constituted by the whole of the other constituent members except the comb filter 42 and the chopper mechanism 41. The other configuration is the same as that of FIG.
To the seventh embodiment shown in FIG.

In this case, the same operation and effect as those of the seventh embodiment described above can be obtained, and especially, the large-grain chopping means for the granular material having a large viscosity (sticky state) in the granulation process. 45 can be reliably avoided, whereby the granulated object having a large viscosity can be removed from the chopper mechanism 41 or the comb filter 42 (see FIG. 26).
It is possible to effectively eliminate in advance the increase in the load due to the adhesion to the substrate. For this reason, it is possible to eliminate inconveniences such as a temporary stoppage of the operation of the entire apparatus due to an increase in the load, and there is an advantage in that it is possible to improve the work efficiency as a whole.

[Ninth Embodiment] Next, a ninth embodiment will be described with reference to FIGS. The ninth embodiment shown in FIGS. 28 to 29 shows still another modification of the large grain engraving means 40 provided in the above-described seventh embodiment (FIGS. 24 to 25).

In the ninth embodiment, the large grain engraving means 55 is provided so that the chopper mechanism 51 is detached from the spiral surface of the tornado fin 3 when not in use, and the number of the cutters 51a of the chopper mechanism 51 is reduced. And the shape was devised.

More specifically, the chopper mechanism 51
Is provided with a plurality of (for example, six) cutters 51a.
Each stage is provided with two cutters 51a arranged in opposite directions. In this case, the two cutters 51a are provided at substantially the same position along the rotation axis, and the tips thereof are bent in an arc shape in the rotation direction so that the granular material can be easily locked. .

When the two cutters 51a of each stage are arranged along the tornado fin 3, the tip of the chopper mechanism 51 is separated from the tornado fin 3 by a distance S ₁ , as shown in FIG. The above-mentioned casing 1 (see FIG. 25) is attached to the upper lid member so as to be located at a position separated by S ₂ (for example, about 3 to 10 mm).

A comb filter 42 is provided correspondingly to the chopper mechanism 51, which is attached to the upper lid of the casing 1 as in the case of FIGS.

Further, the rotating shaft 51A of the above-described chopper mechanism 51 is provided with an encoding plate 53 for positioning. The encode plate 53 is made of, for example, a non-magnetic material and has permanent magnets 53a,
53b is fixedly mounted in a spot shape. Then, each of the permanent magnets 53a is detected as positioning information from the upper lid of the casing 1 by a hanging equipment magnetic sensor or the like (not shown), and the controller 50 (FIG. 10) described above.
Reference).

When the operation of the chopper mechanism 51 is stopped, the controller 50 controls the information detected by the magnetic sensor or the like so that the two cutters 51a extending left and right stop at the position shown in FIG. The stop control of the chopper mechanism 51 is performed based on this. Other configurations are the same as those in FIGS. 24 to 25 (seventh embodiment) described above.

Also in this case, FIGS.
5 (seventh embodiment), in addition to having the same operational effects as in the case of FIG.
-Chopper mechanism 41 in FIG. 27 (eighth embodiment)
There is an advantage that it is possible to obtain substantially the same operation and effect as in the case where is moved.

[Tenth Embodiment] Next, a tenth embodiment will be described with reference to FIG. The tenth embodiment shown in FIG. 30 shows still another modified example of the large grain engraving means 20 in the third embodiment (FIGS. 16 and 17).

The large grain chopping means 60 according to the tenth embodiment is characterized in that the comb filter 61 and the chopper mechanism 62 are further moved upward (moved upward) from above the spiral surface of the tornado fin 3 when not in use. Have. FIG.
Shows a schematic configuration including a mechanism for raising or lowering the entire comb filter 61 and chopper mechanism 62.

In FIG. 30, the large-grain chopping means 60
Are the comb filter 61 and the chopper mechanism 62 described above.
Holding plate 63 for holding the
And a lift mechanism 64 capable of urging the vertical movement and stopping at an arbitrary position within a predetermined vertical movement stroke range.

On the holding plate 63, a through-hole 63a is provided at the center thereof, and a chopper drive motor 6 for rotating and driving the chopper mechanism 62 is provided at the through-hole 63a.
5 is fixedly mounted with the drive shaft 65A directed downward.

The through-hole 63a of the holding plate 63 described above.
The part is equipped with a tubular member 66 depending downwards,
The cutter holding frame 61A of the comb filter 61 disposed at the tornado fin 3 in the casing 1 is fixed to the lower end thereof. Reference numeral 1H denotes a through hole for the tubular member 66 provided in the upper lid portion of the casing 1. Further, a chopper drive shaft 62A connected to a drive shaft 65A of the above-described chopper drive motor 65 is provided in the tubular member 66.

Thus, the chopper mechanism 62 is directly driven to rotate by the chopper drive motor 65, and at the same time, when the holding plate 63 moves up and down, the comb filter 61 together with the tubular member 66 and the chopper drive motor 65 The chopper mechanism 62 moves up and down together with 65.

The lift mechanism 64 holds a holding plate 63 and urges the holding plate 63 up and down, and a male screw 64A of the screw mechanism 64A.
a, a lift drive motor 64C configured to be rotatable in both forward and reverse directions, a guide mechanism 64B for guiding the vertical movement of the holding plate 63, and the guide mechanism 6
4B and a fixed frame 67 on which the lift drive motor 64C is mounted and fixedly mounted.

The fixed frame 67 is provided with a relatively large through hole 67A at the upper central portion shown in FIG. 30, and a chopper drive motor 65 that moves up and down integrally with the holding plate 63 is fixed to the fixed frame 67. It is designed not to hit.

Further, between the upper lid portion of the casing 1 and the cutter holding frame 61A of the comb filter 61, the above-described tubular member 66 is disposed at the center, and a cylindrical bellows portion 68 is provided.
Is equipped. The bellows portion 68 is provided with its upper end portion closing the through hole 1H of the casing 1 described above. Further, between the tubular member 66 and the chopper drive shaft 62A inserted therein, bearing bearings 66a and 66b are provided at upper and lower ends thereof. For this reason, even if the lift mechanism 64 operates and the chopper mechanism 62 and the comb filter 61 move up and down, the internal odor is reliably prevented from leaking outside through the through hole 1H of the casing 1. .

The operations of the lift drive motor 64C and the chopper drive motor 65 are controlled by the controller 50. Thus, the timing of starting and stopping the operation of the chopper drive motor 65,
The rotation speed and the timing of the vertical movement of the chopper mechanism 62 and the comb filter 61 are executed according to a preset program.

Here, of the constituent members constituting the above-mentioned large grain engraving means 60, a retreat mechanism such as a chopper is constituted by the whole of the other constituent members except the comb filter 61 and the chopper mechanism 62. Other configurations are described in FIG.
This is the same as the third embodiment shown in FIGS.

In this way, the same operation and effect as those of the third embodiment described above can be obtained, and in particular, the operation of the large-graining means 60 for the viscous granular material during the granulation process can be ensured. The granulation target having a large viscosity can be prevented from being caught by the chopper mechanism 6.
The increase in the load due to adhering to the second or comb filter 61 can be effectively eliminated in advance. Therefore, it is possible to eliminate the inconvenience of temporarily stopping the operation of the entire apparatus due to the increase in the load. In this respect, there is an advantage that work efficiency can be improved as a whole.

[Eleventh Embodiment] Next, an eleventh embodiment will be described with reference to FIG. The eleventh embodiment shown in FIG. 31 is similar to the tornado fin 3 described above (FIG. 1).
FIG. 31 shows still another modification, which is characterized in that an inverted truncated cone-shaped tornado fin 72 is provided as shown in FIG. Reference numeral 71 indicates a casing in this case.

In this way, even if the height of the casing 71 is reduced, the length of the spiral surface of the tornado fin 72 can be set to be long, so that the size of the entire equipment can be reduced without impairing the granulating function. There is an advantage that it becomes possible. The other configuration and operation and effect are the same as those of the first embodiment (see FIG. 1).

[0195]

Since the present invention is constructed and functions as described above, according to the present invention, the kneading blade and the tornado fin double the granulation effect by rolling, and the rolling surface of the tornado fin is granulated. Because it was configured to crush the granulated material with a large diameter formed during rolling and rising,
Even if the treatment volume in the tank is large, it is possible to efficiently stir and knead the sludge-like substance formed into a dewatered cake, and to granulate and size the sludge-like substance. ), It is possible to perform granulation and sizing without changing the size of the whole apparatus. At this point, if a sizing apparatus is added, a lot of installation places are needed. Compared to the example, the whole apparatus can be made smaller and more multifunctional, so that the powder (fine dust) or dewatered cake in pesticides, fertilizers, ceramics, etc. is made into granules or granules, thereby preventing scattering. (Reduces the loss of scattering and does not pollute the working environment), increases the bulk density (eases handling in storage, supply, packaging, transportation, etc.), prevents aggregation, deterioration and adhesion, improves appearance, improves fluidity ( Fridge phenomenon at the hopper It is possible to provide an excellent granulator unprecedented that raw not) or the like becomes possible.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view partially showing an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing an example of an exterior of a casing in the embodiment of FIG. 1;

FIG. 3 is an explanatory diagram showing each kneading blade provided on the inner bottom portion of the casing in the embodiment of FIG. 1;

FIG. 4 is an explanatory diagram showing a shape of a first kneading blade in FIG. 3 and a positional relationship with a main shaft.

FIG. 5 is an explanatory diagram showing a shape of a second kneading blade and a positional relationship with a main shaft in FIG. 3;

FIG. 6 is an explanatory diagram showing a shape of a third kneading blade in FIG. 3 and a positional relationship with a main shaft.

FIG. 7 is an explanatory view showing an example of a large-grain notch means provided in a casing in the embodiment of FIG. 1;

FIG. 8 is an explanatory diagram showing an operation of the cutter along a line BB of the large grain engraving means disclosed in FIG. 7;

FIG. 9 is an explanatory view showing the structure of a small-diameter particle drop elimination mechanism provided in the casing and a positional relationship with the casing in the embodiment of FIG. 1;

10 is a block diagram showing an example of various sensors provided in the embodiment in FIG. 1 and an example of a control system including them and a controller.

FIG. 11 is an explanatory diagram (flowchart) showing the operation procedure of FIG. 1;

FIG. 12 is a diagram (measured value) showing a temperature change of the dewatered cake when a predetermined amount of lime is put into the dewatered cake (dewatered sludge).

FIG. 13 is a partial plan view showing an example of a large grain engraving unit according to the second embodiment.

14 is a partially omitted front view of FIG. 13;

FIG. 15 is a schematic explanatory view of a large grain engraving means as viewed from the right direction in FIG. 14;

FIG. 16 is a plan view showing an example of a large-grain chopping unit according to the third embodiment.

17 is a diagram showing a positional relationship between the comb filter and the chopper mechanism as viewed from the front in FIG. 16;

FIG. 18 is a partially omitted plan view showing an example of a large grain engraving unit in the fourth embodiment.

FIG. 19 is an explanatory diagram showing the positional relationship between the comb filter and the chopper mechanism as viewed from the front direction in FIG. 18;

FIG. 20 is a partially omitted partial plan view showing an example of a large grain engraving unit in the fifth embodiment.

21 is an explanatory diagram showing the positional relationship between the comb filter and the chopper mechanism as viewed from the front in FIG. 20;

22 is a diagram showing a cross-sectional shape of each blade of the comb filter and the chopper mechanism in FIG. 20, and FIG. 22 (A) is a diagram showing a positional relationship between the comb filter and the tip of each blade in the filter terrace portion and each cross-sectional shape; FIG. 22B is an explanatory diagram showing a positional relationship and a cross-sectional shape of the tip of each blade in the comb filter and the chopper mechanism.

FIG. 23 is a partially omitted partial plan view showing an example of a large grain engraving unit in the sixth embodiment.

FIG. 24 is a schematic plan view showing an example of a large grain engraving unit according to the seventh embodiment.

25 is an explanatory diagram showing a positional relationship of each component in a direction along a main axis as viewed from the direction of arrow A in FIG. 24.

FIG. 26 is a partially omitted partial plan view showing an example of a large grain engraving unit in the eighth embodiment.

FIG. 27 is an explanatory diagram showing a positional relationship between components in FIG. 26 in a direction along a main axis.

FIG. 28 is a partially omitted schematic plan view showing an example of a large grain engraving unit in the ninth embodiment.

FIG. 29 is an explanatory diagram showing an example of the encoder section disclosed in FIG. 28;

FIG. 30 is a schematic longitudinal cross-sectional view partially showing an example of a large-grain notch means in the tenth embodiment;

FIG. 31 is an explanatory diagram showing an example of a tornado fin according to the eleventh embodiment.

FIG. 32 is an explanatory view showing a conventional example.

[Explanation of symbols]

Reference Signs List 1,51 casing 2 substance carrying-in section 2A lime charging section 3,72 tornado fin 3A fin arm 4 main shaft 9 baffle plate 10 rubber bellows as bellows mechanism 11 granulated matter discharge section 11A discharge cover 12 exhaust gas discharge section 13 main shaft driving means 14 Casing holder 14A Leg 15, 16, 20, 30, 35, 40, 45, 55, 6
0 Large grain chopping means 16A, 16B Hanging bar 16C Bar cutter 18 Small diameter grain drop elimination mechanism 18A Cutout hole 18B Partial side wall member 18C Side wall member drive mechanism 18D Cover part 21 Comb filter 21a Blade 22, 33 Chopper mechanism 22a, 33a Cutter 22A, 33A hanging shaft 24 pressure pump 25 deodorization means 26 air delivery means 27 exterior member supporting frame 29 coupled material supply means 29a spray nozzle 50 controller _{C 1, C 2 C 3,} C 4 cutter member Q granules

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yoshio Abe 2-16-46 Minami Kamata, Ota-ku, Tokyo Inside Tokimec Co., Ltd. (72) Yasuo Abe 2-16-46 Minami Kamata, Ota-ku, Tokyo Inside Tokimec Co., Ltd. (72) Inventor Sakuki Inagaki 2-16-46 Minami Kamata, Ota-ku, Tokyo Co., Ltd. Inside Tokimec Co., Ltd. (72) Shigeo Takayama 2-16-46 Minami Kamata, Ota-ku, Tokyo Co., Ltd. (72) Inventor Mutsumi Takahashi 2-16-16 Minami Kamata, Ota-ku, Tokyo Co., Ltd. Tokimec (56) References JP-A-7-136696 (JP, A) JP-A-58-40137 (JP, A) JP-A-5-294769 (JP, A) JP-A-61-230731 (JP, A) JP-A-4-131500 (JP, U) (58) Fields investigated (Int. Cl. ⁷⁾ , DB name) B01J 2/10 C02F 11/00

Claims (14)

(57) [Claims] 1. A cylindrical casing provided with a substance carrying-in section for carrying a predetermined amount of a granulated object which has been dehydrated into a cake,
A tornado fin rotatably disposed along the inner wall of the casing and having a helical continuous plate surface, and a tornado fin disposed at a central shaft portion of the casing for holding and rotating the tornado fin. A spindle, a baffle plate that is provided at an upper end portion in the casing and sweeps out granules rising on a spiral surface of the tornado fin, and a granule discharge section provided on a side surface of the casing; An exhaust gas discharge unit that discharges exhaust gas in the casing, wherein the casing is provided with a spindle drive unit that rotationally drives the spindle, wherein the granulation device corresponds to the spiral surface of the tornado fin. It is equipped with a large-grain chopping device that cuts the particle size of granules such as sludge-like substances that are granulated while rolling on the spiral surface to a certain size. Granulator to. 2. A method according to claim 1, wherein said casing is provided with a binder supplying means for spraying a granulating liquid onto a granulation target such as a sludge-like substance at a predetermined position. Granulation equipment. 3. The large grain engraving means is formed by a plurality of needle-shaped cutter members disposed along the spiral surface of the tornado fin and fixedly mounted on the tornado fin, and the tip ends of the plurality of cutter members. 3. An interval between a portion and a side wall of the casing is set to gradually decrease as going upward.
A granulating apparatus as described in the above. 4. The large grain engraving means comprises two hanging bars disposed along the spiral surface of the tornado fin and fixedly mounted on the tornado fin, and a bar cutter holding the hanging bar. 3. The granulating apparatus according to claim 1, wherein a distance between a part of the bar cutter and a side wall of the casing is gradually reduced as going upward. 5. A comb filter provided with a plurality of comb-shaped blades and provided at a predetermined interval on the uppermost spiral surface of the tornado fin, and each of the comb filters has a plurality of comb-shaped blades. 2. A chopper mechanism which engages a part of a rotating plane in a space between the blades and is forcibly driven to rotate by a predetermined driving means.
Or the granulation apparatus according to 2. 6. The chopper mechanism comprises a hanging support shaft, and a plurality of cutters held by the hanging support shaft and protruding radially outward, and each of the cutters is provided with a hanging support. The granulating apparatus according to claim 5, wherein the cutter is divided into a plurality of stages along the axis, and at least two cutters divided into each stage of the chopper mechanism are arranged on the same rotation surface. 7. The comb-shaped filter has its downstream end directed toward the main shaft so as to guide the granulated material rolling along the spiral surface to the tornado fin toward the center. The granulator according to claim 5 or 6, wherein the granulation device is disposed obliquely on a spiral surface of the tornado fin. 8. A comb filter retracting mechanism for holding the comb filter in the casing and retracting the comb filter between the tornado fin and the main shaft when the comb filter is unnecessary. The granulator according to claim 5, 6 or 7, wherein the granulation is performed. 9. A chopper for holding the comb filter and the chopper mechanism in the casing and retracting the comb filter and the chopper mechanism above the tornado fin when the comb filter and the chopper mechanism are unnecessary. The granulator according to claim 5, 6 or 7, further comprising an equal evacuation mechanism. 10. The comb filter according to claim 5, wherein each of the cutters of the comb filter extends toward the main shaft, and a cutter terrace is provided at a tip end of the lowermost cutter. , 8 or 9. 11. The comb filter is disposed between the main shaft and the tornado fin, and the chopper mechanism is provided at a predetermined interval on the uppermost spiral surface of the tornado fin, and 6. The mechanism according to claim 5, wherein at least two cutters divided into each stage of the mechanism are arranged on the same rotating surface, and the tips of the plurality of cutters in each stage are bent in the rotation direction. A granulating apparatus as described in the above. 12. A chopper retracting mechanism for holding the chopper mechanism and retracting the chopper mechanism between the tornado fin and the main shaft when the chopper mechanism is unnecessary is provided on the casing. The granulator according to claim 11, wherein the granulation is performed. 13. The granulating apparatus according to claim 1, wherein a small-diameter particle drop elimination mechanism that operates at a predetermined timing is provided on a side surface of the casing. A cutting hole formed by cutting a part of the side wall, a partial side wall member arranged to fit into the cutting hole and having the same shape and the same size as the cutting hole; A side wall member driving mechanism that moves outward or returns to the original position in the direction, and a cover portion that has a structure that allows movement of the partial side wall member and covers the entire periphery of the partial side wall member and the cutout hole. Granulator characterized by the fact that: 14. The casing according to claim 1, wherein said casing is formed in an inverted conical shape, and said spiral tornado fin is arranged along an inner wall of said inverted conical shaped casing. 3,4,5,7,8,9,10,1
14. The granulating apparatus according to 1, 12, or 13.