JP2009219962A - Kneader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a kneaded substance from adhering on a kneading member in the vicinity of a water addition unit and eliminate a big lump of the kneaded substance, in a twin-screw kneader. <P>SOLUTION: In the kneader, a fixing pin 10 is fixed to a trough 2 in the vicinity of the axial direction of the kneading members 6-2 (6-2a, 6-2b, 6-2c), 7-2 (7-2a, 7-2b, 7-2c). The kneaded substance adhering on the kneading members 6-2, 7-2 moving along a bottom wall 2j of the trough 2, an inclined plate 2k and a sidewall 2n is scraped by the fixed pin 10. The lump of the kneaded substance collides against the fixed pin 10, and crushed when being moved by energization force of the kneading members 6-2, 7-2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a kneader (humidifier) for kneading and humidifying EP ash, fly ash, and the like. The kneader of the present invention can be used for kneading and humidifying foodstuffs and drugs.

  Conventionally, as solidification treatment of fly ash, etc., a solidifying agent is mixed with fly ash and hydrated (here, hydration means either the case of adding only water or the case of adding water and chemicals; the same applies hereinafter). After kneading, solidification is performed by a hydration reaction. For the solidification treatment of fly ash or the like, a kneader for adding and kneading the raw material mixed with fly ash and a solidifying agent such as cement is used. As this kneading machine, a horizontal rotation axis (a horizontal axis in a trough provided with an inlet for charging a mixture of raw fly ash and cement and a kneaded material on one side, that is, an outlet for taking out the kneaded material, is provided on the other side. A kneading member provided on each of the first rotating shaft and the second rotating shaft is known.

  A rod paddle is provided in the radial direction of the rotating shaft, and the rod paddle provided on the first rotating shaft and the lot paddle provided on the second rotating shaft are arranged so as to be in close contact with each other without overlapping in the axial direction (Patent Document 1). )

  The rod paddles are arranged in a spiral shape about the rotation axis in the axial direction.

  (Patent Document 2) shows a kneader in which rod paddles at the same place in the axial direction of two parallel rotors are entangled with each other while shifting the pitch in the circumferential direction.

  A kneading machine that can reduce the starting load after stopping for a long time by providing an eccentric portion in the kneading machine is disclosed in (Patent Document 3). According to the kneader described in Patent Document 3, the starting torque when the kneaded material is fixed is small. In addition, the first and second kneading members at the same position in the axial direction of the eccentric portion of each rotary shaft have an angle of 45 degrees with respect to the line connecting the centers of the eccentric portions of the first and second rotary shafts. The kneaded material can be sufficiently kneaded at one point in the axial direction by bringing the ends of the kneading members close to each other and having a length that does not interfere with each other.

  It has been found that the following phenomenon occurs when the invention described in Patent Document 3 is implemented.

  The kneaded material on the rotor cannot be stirred without the stirring member being involved, and flows out toward the outlet in a state where the humidification is insufficient. The kneaded material is brought toward one side of the trough and the kneaded material is raised. The trough is limited to a sealed structure.

  In addition, the fluctuation of the rotational force increases, and an eccentric load is applied to the gear that transmits the rotation from the electric motor to the rotor.

  In a kneader (Patent Document 1) in which the kneading members are arranged almost spirally in the axial direction of the rotating shaft (Patent Document 1), the positioning of the mounting portion must be related to the axial direction and the circumferential direction, and the mounting portion on the rotating shaft is processed. It takes a lot of man-hours.

Therefore, in the invention described in Patent Document 4, in the kneading machine such that the starting torque at the start of work is small, the raw materials can be kneaded well, and there is no overload, the kneaded material riding on the rotor is often wound between the rotors and sent. The kneading machine can sufficiently knead the raw materials.
JP-A-11-104477 JP 2005-313097 A JP 2006-75807 A Japanese Patent Application No. 2006-322842

  In the kneading machine, it is recognized that the powdery raw material becomes a large lump by addition of water near the addition position of the kneading chamber. Even in the invention described in Patent Document 4 in which the upper side of the rotor rotates in a direction approaching each other, it is recognized that the lump does not get caught in the opposite part of the rotor and goes to the downstream side. In a kneader in which the upper side of the rotor moves toward the side wall of the trough, the lumps after the addition move to the downstream side along the trough side wall.

  The present invention is to provide a kneading machine that solves the above problems by immediately crushing even if the raw material becomes a large lump by water addition, in a kneading machine equipped with a water heater that adds water to the powder raw material in the kneading chamber. Objective.

  In the rotor near the water heater, the kneaded material adheres to the kneading member and tends to enlarge and solidify. Then, it aims at providing the kneading machine with which a kneaded material does not adhere easily to a kneading member by scraping off the kneaded material adhering to a kneading member.

The first invention according to the present application has two parallel sideways driven by an electric motor in a trough having a raw material inlet at one end and a kneaded material outlet kneaded at the other end. In a kneader having a rotor provided with a large number of kneading members in the axial direction of these rotary shafts on the first and second rotary shafts of the shafts,
A mixing chamber for mixing the material to be processed and the raw material provided by partitioning the trough in the axial direction of the rotor, and a kneading chamber for adding and kneading the mixed raw material;
A water heater for adding water to the kneading chamber;
A rod-shaped kneading member fixed in an axial direction on the first and second rotating shafts in the kneading chamber;
In the vicinity of the water added by the water heater, it is fixed to the trough and protrudes toward the first and second rotating shafts, overlaps with adjacent kneading members that rotate when viewed in the axial direction of the rotating shaft, and is adjacent in the axial direction of the rotating shaft. A fixed scraping member;
It is a kneader characterized by having.

  A second invention according to the present application is the kneading machine according to the first invention, further comprising a fixed scraping member that enters between each of a plurality of adjacent kneading members in the axial direction of the rotating shaft. .

  3rd invention which concerns on this application has a rotor which the kneading | mixing member which was provided along the side wall of the trough and rotated and moved to the upper side of the rotating shaft moves to the direction away from a trough side wall, and is diagonally downward from the said side wall side The kneading machine according to the first or second invention is characterized in that a fixed scraping member protruding toward the rotating shaft is provided.

  According to a fourth aspect of the present invention, the rotation direction of the first rotation shaft and the second rotation shaft is a rotation direction in a direction in which the kneading members on the upper side of the rotation shafts approach each other. It is a kneader described in the invention.

  A fifth invention according to the present application is the kneader according to any one of the first to fourth inventions, wherein the fixed scraping member has a pin shape.

    According to a sixth aspect of the present invention, there is provided a kneader according to any one of the first to fifth aspects, wherein a gap is provided in the axial direction between the fixed scraping member and the kneading member adjacent in the axial direction. It is.

  According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the inner wall surface of the trough has a point-symmetric wall surface about a bisection point of a line connecting the rotation centers of the rotation shafts. It is a kneading machine as described in one invention.

  According to the first aspect of the present invention, even if the raw material becomes a lump by being hydrated, the lump sent in the circumferential direction of the rotor by the rotating rotor is crushed when the kneading member passes through the fixed scraping member position. . Moreover, the kneaded material adhering to the kneading member is scraped off and does not enlarge.

  According to the second aspect of the present invention, even if the large raw material lump that has been hydrated is not crushed by the upstream first fixed scraping member, it is crushed by the downstream fixed scraping member.

  According to the third aspect of the present invention, since the raw material that has been crushed by the fixed scraping member into a small lump is in the space between the trough bottom wall and the side wall, it receives a feeding force and is sent downstream. In addition, it is certain that the large raw material lump that has been hydrated will wrap around the position of the fixed scraping member, and the effect of crushing is great.

  According to the invention which concerns on Claim 4, the fixed scraping member can crush the lump of the kneaded material which is going to wrap around on each rotor. Further, the kneaded material clinging to the kneading members of both rotors is scraped off.

  According to the fifth aspect of the present invention, the fixed scraping member is low in cost and easy to install.

    According to the sixth aspect of the invention, by setting the gap to be about the maximum diameter of the solid matter in the raw material, overloading can be avoided and the solid scraping member can sufficiently scrape the kneaded product from the kneading member.

  According to the seventh aspect of the invention, at least the kneading member whose tip approaches the trough wall surface can knead the kneaded material near the trough wall surface. Also, troughs are advantageous in manufacturing.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the term “axial direction” refers to the axial direction of the rotary shaft 4 or 5. Lot No. 2 indicates the axial position of the kneading member or the fixed scraping member as shown in FIG. 2, and a part thereof is indicated by a circled number.

  As shown in FIGS. 1 and 2, an electric motor 3 with a speed reducer 3a is provided in a trough 2 having a raw material inlet 2a at one end and a kneaded material outlet 2b kneaded at the other end. Rotors 19 and 21 provided with a plurality of kneading members 6 and 7 (see FIG. 2) in the axial direction of the two rotating shafts 4 and 5 parallel to each other and driven in the opposite directions at the same rotational speed. In each kneading machine, the rotary shafts 4, 5 have journal lines 4a, 4b, 5a, 5b supported by bearings at both ends and a center line decentered from the rotation center of the rotary shafts 4, 5 between the journal parts. It has the eccentric parts 4c and 5c which have.

  As shown in FIG. 7, the eccentric centers C41, C51 of the eccentric portions 4c, 5c of the first rotating shaft 4 and the second rotating shaft 5 are the rotating center C42 of the first rotating shaft 4 and the second rotating shaft 5 respectively. The direction of the eccentric center C41 of the eccentric portion 4c of the first rotating shaft 4 as viewed from the rotating center C42 of the first rotating shaft 4 and the rotating center of the second rotating shaft 5 The direction of the eccentric center C51 of the eccentric portion 5c of the second rotating shaft 5 viewed from C52 is the same.

  The eccentric parts 4c and 5c extend over almost the entire length in the trough 2. Here, the centers C41 and C51 of the eccentric portions 4c and 5c are 2 of the line CDL connecting the rotation centers of the rotating shafts 4 and 5 (centers C42 and C52 of the journal portions 4a, 4b, 5a and 5b) as shown in FIG. If the center C41 of one eccentric part 4c is at a symmetrical position with the equidistant line D as the axis of symmetry, and the center of the other eccentric part 5c is C51 '(temporary center), the rotation shafts 4 and 5 have the same speed. Therefore, the eccentric part centers C41 and C51 'are always in a symmetrical position when viewed from the bisector D.

  In the embodiment of the present invention, the eccentric part center C51 is provided on the extended line connecting the center C52 of the rotating shaft 5 and the temporary eccentric part center C51 ′. That is, the eccentric part center C51 has a phase difference of 180 degrees around the rotation axis 5 with respect to the temporary eccentric center C51 '.

  In the above description, the distance between the center C42 of the rotating shaft 4 and the center C41 of the eccentric portion 4c, that is, the eccentric amount e4, and the distance between the center C52 of the rotating shaft 5 and the center C52 of the eccentric portion 5c, that is, the eccentric amount e5 are equal. Hereinafter, e4 = e5 = e, and the amount of eccentricity is represented as e.

  However, the eccentric amounts e4 and e5 may be different.

  As shown in FIG. 2, the kneading members 6 and 7 and the feed paddles 28 (28a to 28d) and 29 (29a to 29d) protrude radially from the centers C41 and C51 of the eccentric parts 4c and 5c, respectively. 4c and the eccentric part 5c are provided at the same or substantially the same position in the axial direction. The kneading members 6 and 7 are rod-shaped (rod paddles), and can be selected to be inclined in the radial direction to the radial direction.

  The kneading members 6 and 7 are provided in the axial direction from the inlet 2a side toward the outlet 2b. Here, in order to indicate each kneading member or fixed scraping member (hereinafter referred to as a fixed pin 10), for example, lot no. In the kneading member No. 2, the rotating shaft 4 side is assigned lot number 6 by adding a hyphen to the reference numeral 6. Add 2 to make 6-2. Similarly, on the rotating shaft 5 side, a high phone is added to the reference numeral 7 to indicate the lot number. 2 is added and expressed as 7-2. Lot No. A kneading member is provided except for a part from 1 to 29. The kneading members 6 and 7 are provided with the eccentric portions 4c and 5c equally arranged in the circumferential direction at respective positions in the axial direction. The kneading member on the downstream side with respect to the flow of the kneaded material of the rotors 6 and 7 is schematically shown by the center line.

  On the rotors 19 and 21, feed paddles 28 a to 28 d, 29 a to 29 d, feed screws 24 and 25, and lots Nos. 3, 5, and 7 are excluded as the first group kneading members in order from the inlet 2 a side to the outlet 2 b side. Kneading members 6-1 to 6-29 and 7-1 to 7-29 are provided.

  The feed paddles 28a, 28b, 28c, 28d, 29a, 29b, 29c and 29d are provided below the inlet 2a.

(overall structure)
1 is a longitudinal sectional view of the kneader, FIG. 2 is a sectional view taken along line AA in FIG. 1, FIG. 3 is a sectional view taken along line BB in FIG. 1, and FIG.

  As shown in FIGS. 1 and 2, the kneader 1 has a raw material inlet 2a at one end and a trough 2 having a kneaded material outlet 2b kneaded at the other end with a speed reducer 3a. The motor 3 has two parallel rotating shafts 4 and 5 driven at the same rotational speed in opposite directions. The journals 4 a and 4 b at both ends of the rotating shaft 4 are supported by the bearing device 14 and the bearing unit 9. Journal portions 5 a and 5 b at both ends of the rotating shaft 5 are supported by a bearing device 15 and a bearing unit 11. The rotating shafts 4 and 5 have eccentric portions 4c and 5c between journal portions 4a and 4b and 5a and 5b at both ends, respectively. Similarly, feed paddles 28 and 29, a large number of kneading members 6 and 7, and feed screws 24 and 25 for feeding raw materials or kneaded materials are provided around the eccentric portions 4c and 5c in the axial direction. The rotating shafts 4 and 5 provided with the feed paddles 28 and 29, the kneading members 6 and 7 and the feed screws 24 and 25 are referred to as rotors 19 and 21, respectively.

  The raw material inlet 2a is open on the upper surface of one end of the trough 2 in the longitudinal direction (axial direction of the rotors 19 and 21). The kneaded product outlet 2 b opens at the bottom of the other end of the trough 2.

  The water heater 18 is disposed upstream of the kneading members 6 and 7 arranged in the axial direction of the rotary shafts 4 and 5. In this example, a water heater 18 is arranged immediately downstream of the kneading members 6-2 and 7-2 in the second row of the kneading members 6 and 7 arranged from the upstream side to the downstream side of the kneading chamber R2. is there.

  As shown in FIG. 3, the trough 2 includes a trough body 2d having a wall surface surrounding the rotors 19 and 21 except for the upper opening 2c, and a trough lid 2e that is closed so that the upper opening 2c can be opened. The inlet 2a has a width close to the trough body 2d. The upper opening 2c of the trough 2 is located at three locations in the longitudinal direction of the trough 2, and is disposed over almost the entire length of the main body 2d. End plates 2f and 2g are fixed to both ends of the trough body 2d in the longitudinal direction. The end plate 2g is provided with a shaft sealing member 32 for sealing one end of the rotary shafts 4 and 5, for example, a gland packing. Further, bearing units 9 and 11 having bearings for supporting the rotating shafts 4 and 5 are fixed to the end plate 2g. The end plate 2f is provided with a shaft sealing member 12, for example, a gland packing, for sealing the other end of the rotary shafts 4 and 5 (see FIG. 1, the rotary shaft 5 side is not shown).

  A stand 2h rises from the end plate 2f in the axial direction of the rotary shafts 4 and 5, and the other ends of the rotary shafts 4 and 5 are supported by bearing devices 14 and 15 provided on the stand 2h, respectively. Gears 16 and 17 that mesh with each other as shown in FIG. 2 are fixed to the other ends of the rotary shafts 4 and 5 that pass through the bearing devices 14 and 15. The gears 16 and 17 have the same number of teeth. The output shaft of the electric motor 3 with the speed reducer 3 a and the rotary shaft 4 are connected via a rotary shaft joint 23. The electric motor 3 with the speed reducer 3 a is fixed to the bed 13. The trough 2 is fixed on the bed 13. The bed 13 has legs (not shown).

  As shown in FIG. 1 and FIG. 3, a water heater 18 is provided in the trough 2 between the inlet 2a and the outlet 2b. The discharge nozzle 18a of the water heater 18 is on the vertical line and faces downward. This vertical line passes through the rotation centers C42 and C52 of the rotary shafts 4 and 5. The water heater 18 feeds water or the like into the trough 2 in order to humidify the mixed fly ash or the like and a solidifying agent such as cement.

  In the kneader 1, when the electric motor 3 is driven, the rotary shaft 4 is rotated via the rotary shaft joint 23, and the rotation is transmitted from the gear 16 rotating together with the rotary shaft 4 to the gear 17. Rotate in opposite directions at the same rotational speed. The fly ash and the like and the solidifying agent charged from the inlet 2a are mixed by the rotation of the rotors 19 and 21 and sent to the outlet 2b side. The kneaded material kneaded after humidification by the water heater 18 reaches the outlet 2b and is discharged. The

(Arrangement of kneading members, etc.)
The kneading member 6 is provided on the rotating shaft 4, and the kneading member 7 is provided on the rotating shaft 5. As shown in FIG. 1, the eccentric parts 4c and 5c of the rotary shafts 4 and 5 are axially passing through the eccentric centers C41 and C51 which are eccentric from the centers (rotation centers) C42 and C52 of the journal parts 4a and 4b by the eccentric amount e. It has a cylindrical shape having center lines C41L and C51L (C51L is not shown). Although only the rotation shaft 4 is shown in FIG. 1, the rotation center lines of the rotation shaft 4 and the rotation shaft 5 are on the same horizontal plane, and the eccentric center C51 of the eccentric portion 5c with respect to the rotation shaft 5 is the rotation center C52 of the rotation shaft 5. The eccentricity is deviated by an eccentric amount e downward. Since the eccentric center C41 is eccentric upward from the rotation center C42, the eccentric centers C41 and C51 are in positions different from each other by 2 × e of the eccentric amount in the vertical direction in the state of FIGS. 1 and 2 (see FIG. 3). The kneading members 6 and 7 are detachably fixed to the outer circumferences of the eccentric portions 4c and 5c.

  In the case of FIG. 1, the kneading members arranged in the axial direction are provided on the planes perpendicular to the axes of the eccentric portions 4c and 5c.

(trough)
3, 4 and 5 show cross sections perpendicular to the longitudinal direction of the trough.

  The main body 2d of the trough 2 has a square cross section perpendicular to the longitudinal direction. The main body 2d of the trough 2 extends beyond the longitudinal direction of the kneading members 6-1 to 6-29 and 7-1 to 7-29 excluding the feed screws 24 and 25 and lots NO3, 5 and 7, and the feed screws 24 and 25. The swash plates 2k are provided at both lower corners of the main body 2d of the trough 2 so as to surround the kneading members 6 and 7. A swash plate 2m is provided inside the side wall 2n. The swash plate 2k is welded to the trough body 2d. The swash plate 2m is one side of a triangular section, and is bolted to the trough body 2d. The swash plates 2k and 2m are opposed to the rotary shafts 4 and 5, respectively.

  As shown in FIG. 1, the swash plate 2k moves the kneading members 6-29 and 7-29 downstream from the adjusting gate 22 that partitions the feed amount between the mixing chamber R1 and the kneading chamber R2 in an adjustable manner. Exists even beyond the position. The swash plate 2m exists from a position where the kneading members 6-8 and 7-8 are located to a position beyond the kneading members 6-29 and 7-29 toward the downstream side in the longitudinal direction.

  As shown in FIG. 5, the swash plate 2m is made of a sheet metal having a hollow triangular cross section in which a swash plate body 2m2 having a surface 2m1 facing the rotors 19 and 21 and refracted and a flat base plate 2m3 are integrated by welding. . The swash plate 2m is fixed to the side wall 2n of the trough 2 by inserting the bolt 8 into the nut 8a welded to the base plate 2m3 through the side plate 2n and the base plate 2m3 of the trough 2. However, only the base plate 2m3 extends upstream from the position where the kneading members 6-8 and 7-8 are located, and ends near the adjustment gate 22.

  As shown in FIG. 3, an angle 2o is fixed to the base plate 2m3 by welding. A fixed scraping member (hereinafter referred to as a fixed pin) 10 (10-3, 10-5, 10-7) is fixed to the angle 2o by welding.

(Fixing pin)
Fixing pins 10 that are fixed to the trough 2 and protrude toward the first and second rotating shafts 4 and 5 are provided in the vicinity of the water added by the water heater 18. The fixing pin 10 is positioned in the axial direction of the rotary shafts 4 and 5 at a position overlapping with the kneading members 6-2i and 7-2i (i: 1, 2, 3, 4) rotating in the axial direction of the rotary shafts 4 and 5. The kneading members 6-2i and 7-2i (i: 1, 2, 3, 4) are close to each other with a gap.

  For the kneading members 6-2 and 7-2, the fixing pin 10-3 is provided with a gap only on one side on the downstream side in the axial direction. For the kneading members 6-8 and 7-2, the fixing pin 10-7 is provided with a gap only on one side on the upstream side in the axial direction. The kneading members 6-4 and 7-4 are provided with fixing pins 10-3 and 10-5 with gaps on both sides in the axial direction. The kneading members 6-6 and 7-6 are provided with fixing pins 10-5 and 10-7 on both sides in the axial direction with a gap therebetween. That is, the kneading members 6-2, 7-2, 6-8, and 7-8 are subjected to the action of the fixing pin on the kneaded material only on one side. Both sides of the kneading members 6-4, 6-6, 7-4, 7-6 are subjected to the action of fixing pins with respect to the kneaded material.

  In this example, the fixed pin 10 is a linear pin that is long in the radial direction passing through the rotation centers of the rotors 19 and 21. Specifically, it is pin-shaped around the center line 10c in the radial direction passing through the rotation centers C42 and C52 of the rotary shafts 4 and 5. However, the fixing pin 10 may be inclined with respect to the radial direction on a plane perpendicular to the rotation shafts 4 and 5.

  As shown in FIG. 3, the circumferential positions of the fixing pins 10 with respect to the rotors 19 and 21 are the upper right in the rotor 19 and the upper left in the rotor 21, and are provided at symmetrical positions. The fixing pins 10 form an angle of 45 degrees with respect to the horizontal direction.

  The tip of the fixing pin 10 is close to this locus outside the locus of the eccentric tops 4c1 and 5c1 of the eccentric portions 4c and 5c. The eccentric tops 4c1 and 5c1 are points where straight lines extending from the rotation centers C42 and C52 to the eccentric centers C41 and C51 cut the outer periphery of the eccentric parts 4c and 5c.

  As shown in FIGS. 1 and 2, the fixing pins 10 are provided at three locations in the longitudinal direction of the trough 2. That is, a fixing pin 10-3 provided between the kneading members 6-2 and 6-4 and between 7-2 and 7-4, between the kneading members 6-4 and 6-6, and 7-4, 3 sets of fixing pins 10-5 provided between 7-6 and kneading members 6-6 and 6-8 and fixing pins 10-7 provided between 7-6 and 7-8, respectively. It is out.

  Between the lines indicated by the circled numbers 1 to 29 shown in FIG. Each fixing pin 10-3, 10-5, 10-7 is centered at a position that bisects the axial direction between adjacent kneading members on both sides. Each fixing pin 10-3, 10-5, 10-7 is provided with a gap between the adjacent kneading members. This gap is not large enough to allow the maximum solids in the raw material to pass through. As a result, the increase in the rotor load is suppressed, and the kneaded material adhering to the kneading members 6-2, 7-2, 6-4, 7-4, 6-6, 7-6, 6-8, 7-8 is enlarged. Scratch off.

  The cross section perpendicular to the longitudinal direction of the fixing pin 10 has a rectangular outer shape in this example, and the side surface of the fixing pin 10 is on a vertical plane orthogonal to the rotation axes 4 and 5. However, various cross sections of the fixing pin 10 can be selected.

  The trough 2 is bilaterally symmetric with respect to a bisector D of a line connecting the rotation centers C42 and C52 of the rotation shafts 4 and 5 (see FIGS. 3, 4 and 5). Further, the cross-sectional shape of FIG. 5 connecting the bottom plate 2j, the side wall 2n, the swash plate 2k, and the surface 2m1 of the swash plate 2m of the trough 2 is point-symmetric about the bisection point d of the line connecting the rotation centers C42 and C52. .

  Thereby, the feed force with respect to the raw material of the feed screws 24 and 25 is made to work effectively. Further, the kneading of the second kneading members 6-8 to 6-29 and 7-8 to 7-29 is effectively performed.

  The trough 2 is provided with an adjustment gate 22.

(Adjustment gate)
As shown in FIGS. 1 and 4, the adjustment gate 22 is fixed to an upper partition wall 2 i that partitions the longitudinal direction of the trough 2 so that the vertical position can be adjusted. The upper partition wall 2i is provided near the outlet 2b near the inlet 2a. The longitudinal direction of the trough 2 is divided into a mixing chamber R1 and a kneading chamber R2 by an upper partition wall 2i and an adjustment gate 22.

  The upper partition wall 2 i and the adjustment gate 22 have a plate surface perpendicular to the longitudinal direction of the trough 2. A screw 26 with a head is screwed into the upper partition wall 2i so as to be able to be screwed back through the elongated holes 22a on both sides of the adjustment gate 22. The adjustment gate 22 has a handle 22c.

  The lower part of the adjustment gate 22 is a corner 22d that approaches the swash plate 2k when the adjustment gate 22 is at the lower limit position in FIG. 4, and the rotation of the eccentric tops 4c1 and 5c1 of the eccentric parts 4c and 5c that rotate when the adjustment gate 22 is at the same position. And has a concave opening 22e that approaches the locus. An opening 22g is formed between the lower edge 22f of the adjustment gate 22 and the bottom wall 2j of the trough 2 at the lower limit position. The mixing chamber R1 and the kneading chamber R2 communicate with each other through the opening 22e and the opening 22g.

  As shown in FIG. 4, the upper portion of the opening 22e is a semicircular shape having a radius r centering on the rotation centers C42 and C52, and the lower portion is square with an edge that hangs down so as to contact the semicircular shape. The radius r is slightly larger than the moving radius connecting the rotation center C42 and the eccentric top 4c1, and the rotation center C52 and the eccentric top 5c1.

  The adjustment gate 22 is moved up and down by loosening the screw 26 and moving the handle 22c up and down. After adjustment, the screw 26 is tightened, and the adjustment gate 22 is fixed to the partition wall 2i.

  The mixture moves from the inlet 2a side to the outlet 2b side through the openings 22e and 22g below the adjustment gate 22.

  As described above, the adjustment gate 22 is provided at the end of the inlet 2a near the outlet 2b, and the cross-section of the trough 2 is limited so that the kneaded material is directly fed from the inlet 2a onto the feed screws 24, 25 and the second group. Kneading members 6-1, 6-2, 6-4, 6-6 and 6-8 to 6-29, and 7-1, 7-2, 7-4, 7-6, and 7-8 to 7 -29 to prevent it from going upwards. Since the adjustment gate 22 is provided, the raw material charged from the inlet 2a is fed to the second group of kneading members without being mixed by the feed paddles 28a to 28d and 29a to 29d as the first group of kneading members. Is prevented. That is, since the adjustment gate 22 is provided, the feed paddles 28a to 28d and 29a to 29d, which are the first group kneading members, can feed the second group kneading members after mixing the raw materials as much as necessary. It is. Here, it is described that the raw materials are mixed by the first group of kneading members, but when the raw materials are in a dry state, they are mixed. Here, although mixing is normally performed in the mixing chamber R1, even if the raw material is infiltrated, it cannot be excluded, so the description will collectively refer to the member used for mixing the raw material and the member used for kneading the hydrolyzed raw material collectively. .

(Configuration of rotor outer circumference)
As shown in FIG. 2, the feed paddles 28 (28a, 28b, 28c, 28d) and 29 (29a, 29b, 29c, 29d), and the multiple kneading members 6 and 7 are connected to the eccentric portion 4c of the first rotating shaft 4 and the first one. The two rotary shafts 5 are provided at the same position in the axial direction with respect to the eccentric portion 5c. A pair of feed screws 24 and 25 are provided around the eccentric portions 4c and 5c. A gap is provided between the kneading members 6 and 7 adjacent in the axial direction of the rotary shafts 4 and 5.

(Configuration of rotor in mixing chamber)
The trough 2 immediately below the inlet 2a is partitioned by a partition wall 2i and an adjustment gate 22 to form a mixing chamber R1.

  In the rotors 19 and 21 in the mixing chamber R1, as shown in FIG. 4, when the eccentric center C41 of the eccentric portion 4c is directly above the rotational center C42 of the rotating shaft 4, the eccentric center C51 of the eccentric portion 5c is the rotational center of the rotating shaft 5. The gears 16 and 17 mesh with each other so as to be directly below C52. At this time, as shown in FIG. 2, the feed paddles 28a and 29a are oriented in the same horizontal direction from the eccentric centers C41 and C51, and the eccentric centers C41 and 51 are separated vertically by 2 · e which is twice the eccentric amount e. It is an arrangement. In the above state, the feed paddles 28c and 29c which are largely separated from the feed paddles 28a and 29a in the axial direction and are downstream (near the outlet 2b) with respect to the flow of the mixture are different from the feed paddles 28a and 29a in the center C41 of the eccentric portions 4c and 5c. , C51 projecting in the opposite horizontal direction. At this time, the feed paddles 28c and 29c are separated vertically by 2 · e which is twice the eccentric amount e.

  Here, the feed paddles 28a, 29a, 28c, and 29c are plate-shaped protruding in the radial direction from the eccentric parts 4c and 5c, can stir the raw material strongly, and feed the raw material toward the openings 22e and 22g of the adjustment gate 22. Is tilted about the radial line.

  Flat feed paddles 28b, 29b and 28d, 29d are provided between the feed paddles 28a, 29a and 28c, 29c and downstream of the feed paddles 28c, 29c. The feed paddles 28b and 29b are provided at the same position in the axial direction of the eccentric portions 4c and 5c, respectively. The feed paddles 28d and 29d are provided at the same position in the axial direction of the eccentric portions 4c and 5c, respectively. These feed paddles are provided at one place or at a plurality of places in the circumferential direction of the eccentric parts 4c and 5c as shown in the figure, although not shown. The feed paddle 28b protrudes directly upward from the eccentric portion 4c, and the feed paddle 29b protrudes downward from the eccentric portion 5c. The feed paddle 28d protrudes directly downward from the eccentric portion 4c, and the feed paddle 29d protrudes directly upward from the eccentric portion 5c.

  The feed paddles 28b, 29b and 28d, 29d are plate-like and centered on the radial line of the eccentric parts 4c, 5c so as to feed the raw material in the mixing chamber R1 in the direction toward the opening 22e side of the adjustment gate 22. Tilted.

  The feed paddles 28a to 28d and 29a to 29d are arranged along the spiral surfaces on the eccentric portions 4c and 5c, respectively.

(Configuration of rotor in kneading chamber)
A space portion on the outlet 2b side excluding the mixing chamber R1 of the trough 2 is a kneading chamber R2. 1 and 2, the space between the adjustment gate 22 of the trough 2 and the end plate 2g is a kneading chamber R2. Near the adjusting gate 22 of the eccentric portions 4c and 5c, feed screws 24 and 25 which are screw blades for one pitch centering on the eccentric portions 4c and 5c, respectively, are provided. The relative twist directions of the feed screws 24 and 25 are opposite to each other. The feed screws 24 and 25 are twisted so as to feed the raw material from the adjustment gate 22 side toward the outlet 2b when driven so that the upper sides of the eccentric parts 4c and 5c rotate toward each other.

  Specifically, in the rotors 19 and 21 shown in FIG. 2, the screws of the feed screws 24 and 25 in the same direction in the horizontal direction and in the radial direction from the vicinity of the adjustment gate 22 which is a fixed position in the axial direction of the eccentric portions 4c and 5c. The blades start, the rotor 19 is left-handed and the rotor 21 is right-handed. As can be seen in FIG. 2, the screw blades of the feed screw 24 are positioned between the screw blades of the feed screw 25 at the opposite portions of the eccentric portions 4 c and 5 c. The sum of the outer peripheral radii of the feed screws 24 and 25 is larger than the distance between the centers of the rotary shafts 4 and 5. Therefore, the screw blades of the feed screws 24 and 25 are inserted into each other in the radial direction at the opposite portions of the eccentric portions 4c and 5c, and the screw blades of the feed screws 24 and 25 have an overlapping portion when viewed in the axial direction.

  Kneading members 6-1, 6-2, 6-4, 6-6 and 6-8 to 6-29 and 7-1, 7-2, 7-4, 7-6 from immediately downstream of the feed screws 24, 25. And 7-8 to 7-29 are arranged on the eccentric portions 4c and 5c in the axial direction. The axial pitch between the kneading members 6-2, 6-4, 6-6, 6-8, 7-2, 7-4, 7-6, 7-8 is the axial pitch between the other kneading members. 2 times.

  FIG. 3 shows kneading members 6-2 and 7-2. At this time, the center C41 of the eccentric portion 4c is directly above the rotation center C42 of the rotating shaft 4. Further, the center C51 of the eccentric portion 5c is directly below the rotation center C52 of the rotation shaft 5. The kneading members 6-2 and 7-2 each have a rod shape. In this example, it is a round bar, which is a so-called rod paddle. The other kneading members 6-1, 6-4, 6-6 and 6-8 to 6-29, 7-1, 7-4, 7-6 and 7-8 to 7-29 are also kneading members 6-2. It is the same shape as 7-2.

  Various kinds of kneading members are employed. That is, the kneading member is not limited to a rod shape, and may be a fan shape or a plate shape as long as the kneading member protrudes radially from the eccentric portions 4c and 5c.

  Kneading members 6-1, 6-2, 6-4, 6-6 and 6-8 to 6-29, 7-1, 7-2, 7-4, 7-6 and 7-8 to 7-29 The eccentric parts 4c and 5c may be attached to the eccentric parts so as to be removable from the eccentric parts. For example, the kneading member may be screwed into a radial female screw provided on the outer periphery of the eccentric portions 4c and 5c.

  The kneading members 6-2 and 7-2 are provided with the eccentric portions 4c and 5c arranged in three equal parts, respectively. And it protrudes from the centers C41 and C51 of the eccentric parts 4c and 5c with the same length in the radial direction, respectively.

The kneading members at the same position in the axial direction of the eccentric parts 4c and 5c are arranged with the eccentric parts 4c and 5c arranged in three equal parts.
In the kneading members 6-2 and 7-2, the kneading members 6-2a, 6-2b, and 6 are denoted by symbols a, b, and c in the circumferential direction from the downstream side to the upstream side in the rotational direction. -2c, 7-2a, 7-2b, 7-2c.

  At this time, one kneading member 6-2a of the kneading member 6-2 is directly upward, and is implanted in the eccentric top 4c1. One kneading member 7-2a of the kneading member 7-2 faces directly below and is implanted in the eccentric top 5c1.

  In FIG. 2, kneading members 6-2i and 7-2i (i: 2... 14) (even-numbered kneading members) at even positions counted from the right to the left of the kneading chamber R2 are eccentric portions 4c and 5c, respectively. The kneading member protrudes in the same direction as the circumferential direction. The kneading members 6- (2i-1), 7- (2i-1) (i: 1, 5 ... 15) (odd row kneading members) at odd positions counted from the right to the left of the kneading chamber R2 are The pitch in the circumferential direction is shifted by a half pitch with respect to the even-numbered kneading members 6-2i, 7-2i (i: 1, 5... 14).

  In this example, the kneading members 6-1, 6-2, 6-4, 6-6 and 6-8 to 6-29, 7-1, 7-2, 7-4, 7-6 and 7-8 to 7 are used. Since -29 is provided with three eccentric portions 4c and 5c arranged equally, the kneading members located at the same position in the axial direction of the eccentric portions 4c and 5c are equally arranged at a pitch of 120 degrees in the circumferential direction. The even-numbered kneading members 6-2i and 7-2i (i: 1... 14) are arranged in a line in the axial direction. That is, the kneading members in the even rows overlap when viewed from the axial direction. The odd-numbered kneading members 6- (2i-1), 7- (2i-1) (i: 1, 5 ... 15) are arranged in a line in the axial direction. That is, the kneading members in the odd rows overlap each other when viewed from the axial direction. The even-numbered kneading members and the odd-numbered kneading members have a phase difference of 60 degrees in the circumferential direction.

  As can be seen from FIG. 3, the even-numbered kneading members 6-2a and 7-2a have an eccentric amount e and a radius L from the centers C41 and C51 of the eccentric portion to the tips of the kneading members 6-2a and 7-2a. Is rotated around the centers C42 and C52 of the rotary shafts 4 and 5 at the radius L + e. When the kneading members 6-2a and 7-2a rotate with respect to the swash plate 2k of the trough, the kneading members 6-2a and 7-2a approach the tip of the kneading members 6-2a and 7-2a and pass through the swash plate 2k position.

  The kneading members 6-2b, 6-2c, 7-2b, and 7-2c located at the same position in the axial direction of the kneading members 6-2a and 7-2a and the eccentric portions 4c and 5c have a radius of √ ((L-ecos 60 °) 2 + (esin 60 °) 2. An approximation of this equation is L-ecos 60 ° = L- (1 / 1.732) e.

  As shown in FIG. 3, assuming that the radius of the eccentric parts 4c and 5c is r4 and r5 and the center distance CD of the rotating shafts 4 and 5 is CD = N, the kneading member tip does not interfere with the eccentric part. The maximum value of the moving radius L + e of the members 6-2a and 7-2a is N−r5 + e and N−r4 + e (see FIG. 11).

  The kneading members 6-2 i, 7-2 i (i: 2... 14) of the even-numbered rows are the same as those described for the kneading members 6-2 and 7-2 of the even-numbered kneading members described above. -2 ia, 7-2 ia (i: 2 ... 14) is the moving radius L + e, and the kneading members 6-2ib, 6-2ic, 7-2ib, 7-2ic (i: 2 ... 14) have a moving radius of approximately L- ( 1 / 1.732) e.

  Therefore, the difference in moving diameter between the kneading member attached with the attached symbol a and the kneading members attached with the attached symbols b and c at the same position in the axial direction is approximately (1 + 1 / 1.732) e.

(Overall action)
The operation of the above configuration will be described. When the motor 3 with a speed reducer is energized, the rotating shaft 4 rotates through the rotating shaft joint 23, and the gear 17 rotates through the gear 16 fixed to the rotating shaft 4, and the gear 17 is fixed. The shaft 5 rotates and the rotors 19 and 21 rotate in the opposite directions at the same speed. This rotational direction is a direction in which the upper sides around the rotors 19 and 21 approach each other as shown by arrows A and B in FIGS. 3, 4, and 5.

  When a material to be treated such as fly ash and a solidifying agent such as cement are combined (these materials are referred to as raw materials) into the trough 2 from the inlet 2a, the feed paddle is fed in the mixing chamber R1 between the end plate 2f of the trough 2 and the adjusting gate 22. The raw materials are mixed by 28a to 28d and 29a to 29d. The mixed raw materials are then sent to the kneading chamber R2 on the outlet 2b side of the adjustment gate 22 through the openings 22e and 22g of the adjustment gate 22. In the kneading chamber R2, the above-mentioned raw materials sent are fed to the upstream side of the kneading members 6 and 7 by the feed screws 24 and 25. Then, the water fed from the water heater 18 is added to the fed raw material and begins to be kneaded.

  When water is added to the powder raw material from the water heater 18, the powder raw material tends to be a large and small dumpling-like lump. When water is further added to the kneaded material that has become a dumpling-like lump, the powder raw material is attached to the kneaded product and the lump becomes large. Further, when the kneaded material clinging to the kneading member is added with water, the raw material of the powder is attached and enlarged. When the kneading members 6-2, 6-4, 6-6, 6-8, 7-2, 7-4, 7-6, 7-8 pass the position of the fixed pin 10 that is a fixed scraping member. The kneaded material which has adhered and enlarged to these kneading members is scraped off. Further, the dumpling-like lump energized by these kneading members collides with the lower side of the fixing pin 10 and is crushed. And a kneaded material is kneaded as it goes to the exit side from the kneading members 6-1 and 7-1.

(Operation in the mixing chamber)
The raw material charged into the trough 2 from the inlet 2a is stirred in the mixing chamber R1 by the eccentric portions 4c and 5c, the feed paddles 28a to 28d, and 29a to 29d, and the raw fly ash and the cement are mixed.

  Since the eccentric portions 4c and 5c are eccentric, the eccentric shaft portion rotates around the rotation centers C42 and C52, so that the raw material is removed and kneaded by the rotation of the eccentric shaft portion.

  As shown in FIG. 4, when the eccentric direction of the eccentric parts 4c and 5c is such that the eccentric center C41 is directly above the rotational center C42 of the rotating shaft 4 in the eccentric part 4c, the eccentric center C51 is the rotation of the rotating shaft 5 in the eccentric part 5c. Just below the center C52. The rotating shafts 4 and 5 rotate in opposite directions so that the upper sides of the eccentric parts 4c and 5c approach each other.

  Therefore, when the eccentric part 4c rotates 90 degrees counterclockwise from the position of FIG. 4 and simultaneously the eccentric part 5c rotates 90 degrees clockwise, the opposing part of the eccentric parts 4c, 5c moves toward the eccentric part 5c side. The raw material in contact with the facing portion is pushed and moved toward the eccentric portion 5c. At this time, the surface of the eccentric portion 4c facing the eccentric portion 5c rotates and moves away from the rotation center C42 of the rotating shaft 4. The surface of the eccentric portion 5c that faces the eccentric portion 4c rotates so as to recede toward a position near the rotation center C52 of the rotating shaft 5.

  When the eccentric portion 5c rotates 90 degrees from the position of FIG. 4 and then rotates 180 degrees, the opposed portion of the surface of the eccentric portion 5c to the eccentric portion 4c moves toward the eccentric portion 4c, and the raw material in contact with the opposed portion is moved to the eccentric portion. Push to 4c and move. At this time, the surface of the portion of the eccentric portion 4c facing the eccentric portion 5c is rotated so as to recede toward a position close to the rotation center C42 of the rotating shaft 4.

  By the above, the eccentric parts 4c and 5c stir and mix the raw materials by rotating around when rotating. The volume of the eccentric portions 4c and 5c is almost unchanged and the raw material is moved to the left and right to increase the stirring and mixing. At this time, the raw material between the opposed portions of the eccentric portions 4c and 5c is urged downward because the peripheral surfaces of the eccentric portions 4c and 5c move downward.

As shown in FIG. 11, the distance CD between the centers of the rotary shafts 4 and 5 is N, the distance between the perpendiculars V1 and V2 in contact with the eccentric parts 4c and 5c in the opposite part of the eccentric parts 4c and 5c is M, and the eccentric part. The radius of 4c is r4, the radius of the eccentric portion 5c is r5, the eccentric amount of each eccentric portion 4c, 5c is e, and the straight line passing through the rotation centers C42, C52 of the rotary shafts 4, 5 is the original line OL. Is the rotational angle from the original line OL of the radial diameter connecting the center of rotation 41 and the eccentric center 41 (left-handed with the rotational center C42 as the origin), and the rotational angle from the original line OL of the radial diameter connecting the rotational center 52 and the eccentric center 51 is θ2. If the distance between the rotation center C42 and the perpendicular V1 is M1, and the distance between the rotation center C52 and the perpendicular V2 is M2, M1 = r4 + e · cos (180 ° −θ1)
M2 = r5-e · cos (180 ° −θ2)
It becomes.

If θ1 = θ2 = θ and r4 = r5 = r, then M1 + M2 = 2r
∴M = N− (M1 + M2) = N−2r = const.
Therefore, the volume between the opposed portions of the eccentric portions 4c and 5c is substantially constant at each rotational position of the rotary shafts 4 and 5, and the raw material between the opposed portions reciprocates left and right as the rotors 19 and 21 rotate. . Therefore, the eccentric portion has the effect of stirring and mixing the raw materials. Since the eccentric parts 4c and 5c extend over almost the entire length of the trough 2, the second kneading chamber R2 exhibits the same action.

  As shown in FIG. 2, the feed paddles 28a and 29a are located at the same position in the axial direction of the eccentric parts 4c and 5c, and are located at one place in the circumferential direction of the eccentric parts 4c and 5c. In the state where the eccentric center C41 is directly above the rotation center C42 and the eccentric center C51 is directly below the rotation center C52, the feed paddles 28a and 29a are both radially in the same direction from the center of the eccentric portions 4c and 5c as shown in FIG. Oriented laterally to the direction.

  Similarly, the feed paddles 28c and 29c are both oriented in the same lateral direction in the radial direction from the centers of the eccentric portions 4c and 5c. However, the feed paddles 28a, 29a and 28c, 29c are in opposite directions.

  Accordingly, the feed paddles 28a, 29a and 28c, 29c knead the raw materials by the rotation of the rotary shafts 4 and 5, and rotate in the locus of movement of the mating feed paddles between the opposing portions of the eccentric parts 4c and 5c. And mix the ingredients. Since the feed paddles 28a, 29a, 28c, 29c are plate-like along the spiral surface centering on the center line of the eccentric portions 4c, 5c, the feed paddles 28a, 29a, 28c, 29c have the stirring ability and feed ability of the raw materials. To the openings 22e and 22g side.

  The feed paddles 28b and 29b protrude in the radial direction of the eccentric parts 4c and 5c in the position shown in FIG. 2 so as to be directly upward and downward with respect to the centers of the eccentric parts 4c and 5c. The feed paddles 28d and 29d are protruded in the radial direction of the eccentric portions 4c and 5c in the position of FIG. 2 so as to be directly downward and directly upward with respect to the centers of the eccentric portions 4c and 5c (see FIG. 4). The feed paddles 28b and 29b are downstream of the feed paddles 28a and 29a. The feed paddles 28d and 29d are downstream of the feed paddles 28c and 29c. The feed paddles 28b, 29b, 28d, and 29d are plate-like along a spiral surface centered on the center line of the eccentric portions 4c and 5c, so that the raw materials are stirred and sent toward the downstream side. As a result, the raw material is sent to the openings 22 e and 22 g of the adjustment gate 22. The raw material sent by the feed paddle is sent to the kneading chamber R2 through the openings 22e and 22g.

(Operation in the kneading chamber)
The openings 22e and 22g of the adjustment gate 22 overlap with the kneading members 6 and 7 when viewed from the axial direction, and the portions other than the openings 22e and 22g are blocked by the adjustment gate 22 and the partition wall 2i. Therefore, the mixed raw material passes through the openings 22e and 22g and is not directly moved onto the rotors 19 and 21, but is sent to the range in which the screws 24 and 25 act.

  The raw material sent to the kneading chamber R2 from the opening of the adjustment gate 22 is sent toward the outlet 2b by the feed screws 24 and 25. The fed raw material is watered by the water heater 18, and the kneading is started from the kneading members 6-1 and 7-1. Even if water is poured into the downstream side of the kneading members 6-2 and 7-2, the water is sprayed and the raw materials around the kneading members 6-1 and 7-1 are added.

  When the water fed from the water heater 18 is added to the powder raw material fed by the feed screws 24 and 25, a large lump (called dumpling) may be formed. At this time, the dumpling tends to be pushed out by the powder raw material fed by the feed force of the feed screws 24 and 25. If the rotors 19 and 21 do not have the fixing pin 10 and are all kneading members, the dumplings that have come to the upper side of the rotors 19 and 21 may be sent without being kneaded downstream of the upper side of the rotors 19 and 21.

  When the water fed from the water heater 18 is mixed with the powder fed by the feed screws 24 and 25, the water is not immediately and uniformly mixed, but partially becomes a kneaded product having a strong adhesive force. End up. Therefore, if all the members disposed downstream of the screws 24 and 25 in the kneading chamber R2 are kneading members, the kneaded material adheres to the upstream kneading member and a solidifying agent is used. The kneaded material adhering to the kneading member is solidified. Extremely, the kneaded material is solidified between the small number of kneading members at a fixed position on the upstream side in the axial direction of the rotary shafts 4 and 5 so as to fill the gap.

  Therefore, the above-described dumpling-like kneaded material is easily sent downstream on the rotors 19 and 21 on the upstream side of the kneading chamber R2.

  When water is added to the powder raw material, it is not immediately uniformly added to the powder. Therefore, when a kneaded material having a strong adhesive strength is partially formed in the water-added raw material, the material is clung to the kneading member.

  In this embodiment, the fixing pin 10 is provided as already described.

  As shown in FIG. 3, the rotors 19 and 21 rotate in the directions of arrows a and b. When the kneading members 6-2a, 6-2b, 6-2c, 7-2a, 7-2b, 7-2c rotate and move along the swash plate 2k and the side walls 2n from the bottom wall 2j side, these kneading members 6 -2a, 6-2b, 6-2c, 7-2a, 7-2b, and 7-2c are added to the kneaded material having increased viscosity to form a dumpling. When these kneading members try to pass the axial side of the fixing pin 10-3, they adhere to the kneading members 6-2a, 6-2b, 6-2c, 7-2a, 7-2b, 7-2c. Most of the kneaded material is scraped off by the fixing pin 10-3.

  Since there is a gap in the axial direction between the kneading and mixing members 6-2a, 6-2b, 6-2c, 7-2a, 7-2b, 7-2c and the fixing pin 10-3, the fixing pin 10-3 is scraped. The kneaded materials adhering to the kneading members 6-2a, 6-2b, 6-2c, 7-2a, 7-2b, and 7-2c after being taken are respectively shown by arrows a and b above the rotors 19 and 21 in FIG. The kneading members 6-2a, 6-2b, 6-2c and 7-2a, 7-2b, 7-2c that have been rotationally moved in the direction B are kneaded with each other at these facing portions (kneading members 6-10 described later) , 7-10).

  When the kneading members 6-4, 6-6, 7-4, and 7-6 rise along the bottom wall 2j, the swash plate 2k, and the side wall 2n of the trough 2, the kneading is attached to these kneading members and enlarged. Objects are scraped off by fixing pins 10-3, 10-5, 10-7 on both sides of these kneading members. In FIG. 3, the kneading members 6-4 and 7-4 and 6-6 and 7-6, which have been rotated and moved in the direction indicated by the arrow A and B on the upper side of the rotors 19 and 21, are kneaded with each other at these opposing portions.

  In the kneading members 6-8 and 7-8, the adhering kneaded material on one side of the kneading members 6-8 and 7-8 is scraped off by the fixing pin 10-7.

  Therefore, the above-mentioned action by the fixing pin 10 is more effective for the kneading members 6-4, 7-4, 6-6, 6-7 than for the kneading members 6-2, 7-2, 6-8, 7-8. Is bigger.

  Further, a large lump kneaded product in a dumpling shape that moves independently of the kneading member is kneaded members 6-2, 6-4, 6-6, 6-8, 7-2, 7-4, 7-6, and 7-8 are moved along the swash plate 2k side wall 2n from the center of the bottom wall 2j along with the rotational movement, collide with the fixed pin 10, and are crushed.

  The gaps in the axial direction of the rotors 19 and 21 between the kneading members 6-2, 6-4, 6-6, 6-8, 7-2, 7-4, 7-6, 7-8 and the fixing pin 10 are raw materials. It is about the size of the largest solid matter contained in it. For example, 10 millimeters.

  5 to 10 show any one of the even-numbered kneading members 6-2 to 6-28 and 7-2 to 7-28, for example, the kneading members 6-10 and 7-10. It is a side view seen from the direction toward the right. 5 to 10, the rotors 19 and 21 rotate in opposite directions. The rotation directions A and B are directions in which the upper sides of the rotors 19 and 21 approach each other.

  In the state of FIG. 5, there is an eccentric center C41 immediately above the rotation center C42. Further, there is an eccentric center C51 immediately below the rotation center C52. The kneading members 6-10 and 7-10 are in the same position in the axial direction of the eccentric parts 4c and 5c, and are kneaded in the radial direction at positions where the circumferential direction is equally distributed around the centers of the eccentric parts 4c and 5c. It has members 6-10a, 6-10b, 6-10c, 7-10a, 7-10b, 7-10c. Each kneading member 6-10a, 6-10b, 6-10c, 7-10a, 7-10b, 7-10c protrudes from the eccentric centers C41, C51 with the same length in the radial direction.

  Here, the even-numbered kneading members 6-8a to 6-28a, 6-8b to 6-28b, and 6-8c to 6-28c are arranged in parallel at the same pitch with a short interval in the axial direction. Hereinafter, the kneading members 6-10 and 7-10 will be described assuming that the symbols of the even-numbered kneading members are the same. The kneading members 6-10a and 7-10a are larger in the protruding amount from the rotation centers C42 and C52 than the protruding amounts of the kneading members 6-10b, 7-10b, 6-10c and 7-10c. The protruding amounts of the kneading members 6-10b, 7-10b, 6-10c, and 7-10c from the rotation centers C42 and C52 are equal.

  When the rotor 19 rotates to the position shown in FIG. 5, the kneading member 6-10a has a large amount of protrusion from the rotation center C42, so that it moves to lift the kneaded material m up to the right side wall 2n surface of the trough 2, Since a portion of the kneaded material is delayed between even-numbered kneading members adjacent in the direction, the surface m1 of the kneaded material is formed substantially along the locus of the tip of the kneading member 6-10a.

  As shown in FIGS. 5 to 6, when the rotor 19 rotates 45 degrees, the surface m1 of the kneaded material is enlarged in the same manner as the surface m2 by the kneading member 6-10a. At this time, the volume occupied by the kneaded material on the right side wall 2n side of the trough 2 below the surface m2 increases, but the raw materials are fed one after another by the feed screws 24, 25 and are added and the kneading members 6-10b, 6 -10c rotates in the direction in which the kneaded material is moved after leaving the kneading member 6-10a to add the kneaded material to the kneaded material, and the kneaded material is shown in FIG. Move to.

  In FIG. 5, the kneading members 7-10b and 7-10c have a smaller amount of protrusion from the rotation center C52 than the amount of protrusion of the kneading member 7-10a. Therefore, since the locus of the tip of the kneading member 7-10b passes through a low position, the surface becomes lower than the surface m1 like the surface m3 of the kneaded material.

  As shown in FIGS. 5 to 6, when the rotor 21 rotates, the kneading member 7-10b feeds the kneaded material downward when passing through the opposed portions of the eccentric portions 4c, 5c, and faces the eccentric portions 4c, 5c. A recess m4 is formed between the portions. However, the kneaded material between the opposed parts of the eccentric parts 4c, 5c moves to the left as shown in FIGS. Therefore, the kneaded material between the opposed portions of the eccentric portions 4c and 5c is already kneaded toward the left as in the action of the eccentric portion with respect to the raw material in the mixing chamber.

  5 to 6, the kneading member 7-10c kneads the kneaded material and rotates clockwise around the heel rotation center C52, and since the displacement upward is large, the kneading member 7-10c penetrates the surface m3 of FIG. 5 upward. . 5 and 6, the tip of the kneading member 7-10a moves from the bottom wall 2j of the trough 2 to a position close to the left swash plate 2k, and the kneaded material on the bottom wall 2j of the trough 2 is moved above the left swash plate 2k. Energize to move to.

  As shown in FIGS. 6 to 7, the kneading member 6-10b sends the kneaded material upward, and sends the kneaded material below the surface m2 to the left. In the state of FIG. 6, since the kneaded material surface m2 descends by its own weight, the shape of the surface m2 changes so that the height is slightly lowered. When the tip of the kneading member 6-10b reaches the surface m2, the kneading member 6-10b having a small protrusion from the rotation center C42 divides the surface m2 into the surfaces m5 and m6. Since the protruding amount of the kneading member 6-10b is small, the ability to lift the kneaded material below the surface m6 is smaller than that of the kneading member 6-10a. It is a state. At this time, the kneading member 6-10c moves from the left to the right above the bottom wall 2j of the trough 2 to knead the kneaded material.

  As shown in FIGS. 6 to 7, the kneading member 7-10a rotates and comes on an extension line connecting the rotation centers C42 and C52 and the eccentric centers C41 and C51. At this time, the amount of protrusion of the kneading member 7-10a from the rotation center C52 is large, and the tip passes through a place near the swash plate 2k and the side wall 2n on the left side of the trough 2, so that the surface m8 in FIG. The surface of the kneaded product is substantially maintained as shown in FIG.

  As shown in FIGS. 6 to 7, the kneading member 7-10b rotates around the rotation center C52 from the opposed portion of the eccentric portions 4c, 5c to the position facing the bottom wall 2j of the trough 2 to knead the kneaded material. The kneading member 7-10c rotates and moves clockwise, and the kneading member 6-10a wraps around the opposite portions of the eccentric parts 4c, 5c to form the surface m5, and the kneading member 7-10c is the front in the traveling direction. Since the kneaded material is moved to the concave portion m4 in FIG. 6, the concave portion m4 is fitted like the concave portion m9 in FIG.

  As shown in FIGS. 7 to 8, the kneading member 6-10a rotates and moves downward, so that the kneaded material below the surface m5 in FIG. The surface m5 changes downward like the surface m10. The kneading member 6-10b protrudes from the kneaded material surfaces m10 and m11 as shown in FIG. The kneading member 6-10c has a small protrusion from the rotation center C42, and the tip is far away from the right swash plate 2k and the side wall 2n, so the kneaded material is kneaded to move the kneaded material upward. Therefore, as shown from the surface m6 to the surface m11, the surface of the kneaded material is raised.

  As shown in FIGS. 7 to 8, the kneading member 7-10a has a large protruding amount from the rotation center C52, and the eccentric portion 5c moves the eccentric center C51 to the upper left of the rotation center C52, so that the surface m8 is like the surface m12. To rise. The kneading member 7-10b rotates and moves from the bottom wall 2j side of the trough 2 to the left swash plate 2k side to knead and push up the kneaded material. Therefore, as shown in FIG. 8, the surface of the kneaded material on the downstream side in the moving direction of the kneading member 7-10a is pushed up to form a surface m13. The kneading member 7-10c reaches the surface m10 changed from the surface m5, and the recess m9 in FIG. 7 disappears. A new recess m14 is formed between the surfaces m10 and m12.

  As shown in FIG. 8 to FIG. 9, the kneading member 6-10a approaches the bottom wall 2j of the trough 2 after passing through the opposed parts of the eccentric parts 4c, 5c, and kneaded the kneaded material on the heel bottom wall 2j to the right. Move it. The kneading member 6-10b goes from above to the opposite part of the eccentric parts 4c, 5c, and as shown in FIGS. 8 and 9, gets under the surface m15 of the kneaded material. At this time, since the space under the surface m11 is expanded by the movement locus of the kneading member 6-10b, the kneaded material is lowered from the surface m11 to the surface m15. The kneading member 6-10c kneads the kneaded material on the right side wall 2n side and moves upward. Then, the kneading member 6-10c shows a tip on the surface from the kneaded material that decreases from the surface m11 to m15, and divides a part of the surface m15 into the surface m16.

  As shown in FIGS. 8 to 9, since the kneading member 7-10a has a large protruding amount from the rotation center C52, it moves so as to lift the kneaded material up to the left side wall 2n surface of the trough 2, and is adjacent in the axial direction. Since a portion of the kneaded material is delayed between even-numbered kneading members, the surface m17 of the kneaded material is formed substantially along the locus of the tip of the kneading member 7-10a. The kneading member 7-10b kneads the kneaded material in the vicinity of the left swash plate 2k, and biases the kneaded material in opposition to the kneaded material below the heel surface m17 attempting to decrease by its own weight. The kneading member 7-10c moves downward the opposing portions of the eccentric parts 4c, 5c to mix the kneaded material kneaded by the kneading member 6-10a.

  As shown in FIGS. 9 to 10, when the rotor 21 rotates 45 degrees, the surface m17 of the kneaded material is enlarged in the same manner as the surface m18 by the kneading member 7-10a. At this time, the volume occupied by the kneaded material on the left side wall 2n side of the trough 2 below the surface m18 increases, but the raw materials are fed one after another by the feed screws 24, 25 and are added and the kneading members 7-10b, 7 -10c rotates in the direction in which the kneaded material moves after leaving the kneading member 7-10a, adds the kneaded material to the kneaded material, and the kneaded material is left side wall 2n surface side of the trough 2 in FIG. Move to.

  In FIG. 9, the kneading members 6-10b and 6-10c have a protruding amount from the rotation center C42 smaller than the protruding amount of the kneading member 6-10a. Therefore, since the locus of the tip of the kneading member 7-10b passes through a low position, it is like the surface m15 of the kneaded material.

  As shown in FIGS. 9 to 10, when the rotor 19 rotates, the kneading member 6-10b feeds the kneaded material downward when passing through the opposed parts of the eccentric parts 4c, 5c, and faces the eccentric parts 4c, 5c. A recess m19 is formed between the portions. However, the kneaded material between the opposed portions of the eccentric portions 4c and 5c moves to the right in FIGS. Therefore, the kneaded material between the opposed parts of the eccentric parts 4c and 5c is already kneaded and kneaded to the right by the movement of the opposed parts of the eccentric parts 4c and 5c in the right direction, like the raw material in the mixing chamber.

  9 to 10, the kneading member 6-10c kneads the kneaded material and rotates counterclockwise around the center of rotation C42, and since the displacement is large upward, it breaks through the surface m15 of the kneaded material in FIG. It becomes like this. This produces surfaces m21 and m22. The tip of the kneading member 6-10a moves from the bottom wall 2j of the trough 2 to the right swash plate 2k in FIGS. 9 and 10, and the kneaded material on the bottom wall 2j of the trough 2 moves above the right swash plate 2k. Energize to move to.

  When FIGS. 5 to 6 and FIGS. 9 to 10 are compared, the drawings are symmetrical. Accordingly, the description of the kneading member 6 or 7 in FIGS. 5 to 6 is the same as that of the kneading member 7 or 6 in FIGS. 9 to 10.

  Hereinafter, since it is the same, the following description of an Example is abbreviate | omitted.

  Even-numbered kneading members 6-2i (i: 1 ... 14), 7-2i (i: 1 ... 14) and odd-numbered kneading members 6- (2i-1) (i: 1, 5 ... 15), 7 -(2i-1) (i: 1, 5 ... 15) is 60 degrees out of phase in the circumferential direction. Therefore, the kneading members 6-2i (i: 2... 14) and 7-2i (i: 1... 14) having the above-described functions are described in the odd-numbered kneading members 6- (2i-1) with a phase difference of 60 degrees. ) (I: 1, 5... 15), 7- (2i-1) (i: 1, 5... 15)

  Since these even-numbered and odd-numbered kneading members are kneaded at the same time, the kneading members 6-2i (i: 1... 14) and 7-2i (i: 1. The kneaded material is not sufficiently kneaded by the even-numbered kneading members 6-2i (i: 1... 14) and 7-2i (i: 1... 14), and the kneaded material is sufficiently circumferential in the rotors 19 and 21. Even if it is not moved, the kneading members 6- (2i-1) (i: 1, 5 ... 15) and 7- (2i-1) (i: 1, 5 ... 15) in the odd rows are sufficiently kneaded. At the same time, it is partially stirred by the kneading member and moved in the circumferential direction of the rotors 19 and 21. Similarly, the kneaded material that has not been sufficiently kneaded by the odd-numbered kneading members is kneaded by the even-numbered kneading members and moved in the circumferential direction of the rotors 19 and 21.

  Among the kneading members 6-16 to 6-29 and 7-16 to 7-29, the even-numbered kneading members 6-2i (i: 8 ... 14) and 7-2i (i: 8 ... 14) and the odd-numbered rows The kneading members 6- (2i-1) (i: 9... 15) and 7- (2i-1) (i: 9... 15) are close to the eccentric portions 4c and 5c and close in the axial direction. As a result, the odd-numbered and even-numbered kneading members move in the same direction (downward) at the opposing portions of the eccentric portions 4c and 5c and pass each other. Thereby, the kneaded material adhering to each kneading member located in the exit 2b is scraped off mutually.

  Accordingly, between the kneading members 6-16 to 6-29 and 7-16 to 7-29, the kneaded materials separated from the kneading members are discharged through the outlet 2b.

  The above operation is summarized as follows.

  The rotors 19 and 21 are rotating in directions in which the upper sides of the rotors approach each other. The fixed pin 10 that is a fixed scraping member enters between the kneading members from obliquely above the side wall 2n of the trough 2 when viewed from the rotation centers C41 and C51 of the rotors 19 and 21, so that the kneaded material clings to the kneading members. Can be prevented. Moreover, a lump kneaded material can be crushed. Moreover, although the kneaded material adheres to the base side of the fixed scraping member, it can be directly observed from the opening side of the trough, and the direct cleaning operation is easy.

  By providing a small number of fixed scraping members in the vicinity of the water heater, adhesion of the kneaded material with a viscosity that tends to form a mass immediately after being added to the powder raw material and also easily adheres to the kneading member, and agglomeration Can be prevented.

  The rotors 19 and 21 rotate in opposite directions. The two eccentric portions always have a displacement component that moves the same amount in the same direction in the left-right direction with respect to the rotation center of the rotation shaft. It always has a displacement component that moves in the same amount in the vertical direction in opposite directions relative to the rotation center of the rotation shaft.

  Therefore, the kneaded material around the rotors 19 and 21 is shaken up and down and left and right by the action of the eccentric portion, and is thus easily caught in the kneading member.

  The kneaded material receives an urging force swinging in the left-right direction at the opposite portion of the eccentric portion, and is sent down by the kneading member of the rotor 19 and the kneading member of the rotor 21, so that the kneaded material is easily wound toward the opposite portion of the rotors 19, 21. Become. That is, the kneaded material is moved in the horizontal direction perpendicular to the axis at the opposite portion of the eccentric portion and moved downward. The kneaded material around the rotors 19 and 21 is swung up and down and left and right by the action of the eccentric part and is subjected to the kneading action by the kneading member.

  The two rotating shafts shall rotate in the opposite direction at the same speed, and the eccentric directions of the two rotating shafts should be in the same direction as seen from the rotational center of the rotating shaft on a straight line passing through the rotational center of the rotating shaft. Thereby, the unbalanced load added to one rotating shaft and the other rotating shaft with respect to a kneaded material can be made small. Therefore, the load of gears and power is reduced.

  An example of the dimensional relationship in the above is as shown in FIG. FIG. 12 shows the dimensional relationship between the fixed scraping member and the kneading member on a plane including the rotation center of the rotor, the center line 10c (see FIG. 3) of the fixed scraping member, and the center line of the kneading member.

  The kneading members 6-2i (i: 1 ... 14) and 6- (2i-1) (i: 1, 5 ... 15) all have the same diameter, the diameter da is 20 millimeters, and the fixing pin 10 in the rotor axial direction. The width w is 30 millimeters. In this example, since the fixing pin 10 is a square bar or a round bar, the width is one side or a diameter of 30 millimeters. Kneading members 6-2 and 6-4, 6-4 and 6-6, 6-6 and 6-8, and kneading members 7-2 and 7-4, 7-4 and 7-6, 7-6 and 7 Each pitch P between -8 is 70 millimeters. The amount δ of penetration of the fixing pin 10 between these kneading members varies depending on the rotational positions of the eccentric portion rotating shafts 4 and 5. In this example, δ = 20 millimeters with respect to kneading members with suffixes b and c, for example, kneading members 6-2b and 6-2c.

[Examples of other eccentric portions]
In FIG. 11, when the eccentric center C51 is now a temporary eccentric center 51 ', the eccentric centers of the eccentric portions 4c and 5c are always symmetrically positioned with respect to the bisector D of the line CDL connecting the rotation centers C42 and C52. There will be. Therefore, the distances Mmax and Mmin between the opposed parts between the eccentric parts 4c and 5c are Mmax = N + 2e− (r4 + r5) and Mmin = N−2e− (r4 + r5), where N is the length of the line CDL, and the opposite of the eccentric parts. The amount of change in the distance between the parts is 4e.

  In this way, the kneaded material is wound up from the top to the opposite portion between the eccentric portions 4c and 5c. A force is generated to increase the distance between the two rotation shafts. On the other hand, in the process of increasing the distance between the opposed portions of the eccentric portion, the opposed portions of both eccentric portions do not apply force to the kneaded material. If the eccentric centers of the eccentric portions 4c and 5c are located at positions symmetrical with respect to the above-mentioned bisecting line, the change in the rotational force during the rotation of the rotors 19 and 21 becomes large. 3 will be required.

  In addition, the gears 16 and 17, the bearings, the rotary shaft joints, etc. not only withstand the maximum rotational force, but also have to consider the life against load fluctuations.

  However, as in the first embodiment, the eccentric center of the eccentric part of one rotating shaft is eccentric to the position just above the rotational center of one rotating shaft, and the eccentric center of the eccentric part of the other rotating shaft is When it is decentered directly below, or when the eccentric center of the eccentric part of each rotating shaft is placed at a position symmetrical to the bisector of the line connecting the rotating centers of the two rotating shafts, Even if the eccentric center is placed at a position different from the above, the kneaded material is moved to one side by rotating the two rotation shafts in opposite directions so that the upper sides of the respective eccentric portions rotate in a direction approaching each other. It is not deposited only on the side of the trough side wall.

  When the eccentric centers of the eccentric portions of the respective rotating shafts are arranged symmetrically with respect to the bisector of the line connecting the rotating centers of the two rotating shafts, when the two rotating shafts rotate, Since the distance between the opposing portions of the eccentric portions changes every rotation, the kneaded material between the opposing portions moves downward in the process of increasing the opposing portions between the opposing portions, As for the kneaded material, the circumferential surface of the rotor goes around to the facing portion, and the kneaded material above the facing portion descends. In the process of reducing the facing portion, the kneaded material between the facing portions is pushed by the eccentric portion and moved downward in the moving direction of the circumferential surface of the eccentric portion at the heel facing portion to be kneaded.

  The center of eccentricity is selected at a position symmetric with respect to the bisector D as in the other embodiments described above or at a position symmetric with respect to the bisector D as in the first embodiment. The eccentric center of the other eccentric part and the temporary eccentric center of the other eccentric part are selected, and the eccentric center whose phase is 180 degrees different from the temporary eccentric center is selected as the actual eccentric center of the other eccentric part. In addition, it is also possible to place the eccentric center of each eccentric part at a position different from these.

(Another embodiment of fixed scraping member)
FIG. 13 is a cross-sectional view at the position of the water mixer 18 which is one place in the rotor axial direction of the kneader. The kneader is the same as that shown in FIGS.

  FIG. 13 shows the fixing pin 10A (10A-3, 10A-5, 10A-7: the next number of Hai Phong is circled in FIG. 2 as a scraping member fixed to the bottom wall 2j of the trough 2 in the embodiment described above. The numerals are shown and the position in the rotor axial direction is indicated). In this fixed pin 10A, a cylindrical pin portion 10a passes through the round hole 2j1 of the bottom wall 2j and stands upright toward the rotation centers C42 and C52. The tip of the pin portion 10a is at a position close to the locus of the eccentric tops 4c1 and 5c1. The fixing pin 10A is fixed to the trough 2 by screwing a bolt 31 that is integrally provided at the root of the pin portion 10a by welding and is inserted into a female screw of the bottom wall 2j through the mounting flange 10b that is in contact with the outer surface of the bottom wall 2j.

  According to this embodiment, when the rotors 19 and 21 rotate, the kneading members 6-2i and 7-2i (i: 1, 2, 3, 4) are fixed to the fixing pins 10A (10A-3, 10A-5, 10A-3, 10A-5). 10A-7), the kneaded material adhering to the kneading members 6-2i, 7-2i (i: 1, 2, 3, 4) and swollen when passing through the side of 10A-7) is scraped off by the fixing pin 10A. It is done. Furthermore, after these kneading members pass by the fixing pin 10A, they are clung to these kneading members 6-2i, 7-2i (i: 1, 2, 3, 4) or near the swash plate 2k and the side wall 2n. The kneaded material that has been generated and is moved upward by these kneading members 6-2i, 7-2i (i: 1, 2, 3, 4) rotates obliquely downward from the side wall 2n of the trough 2. A fixed pin 10 (10-3, 10-5, 10-7: the next number of the hyphone is a circled number in FIG. 2 and represents a position in the rotor axial direction) protruding toward the shafts 4 and 5. The kneaded material clung to the kneading members 6-2i, 7-2i, (i: 1, 2, 3, 4) is scraped off. And the kneaded material which became the lump collides with the fixed pin 10, or when passing through between the fixed pins 10-3 and 10-5 and between 10-5 and 10-7, the passage is restricted and crushed. Is done.

  These actions are one-sided actions in the rotor axial direction of the kneaded material that is fed in the rotor axial direction as a whole with the thrust by the feed screws 24, 25. Is called.

  According to this embodiment, the rate at which the massive kneaded material moves to the downstream side is smaller than when the fixed scraping member is installed. Further, since the kneaded material clinging to the kneading member is frequently removed, the removed kneaded material is not easily formed into a small large lump.

  The fixing pin 10A may be provided only on the bottom wall 2j side.

  FIG. 14 shows a trough 2 having a raw material inlet at one end and a kneaded material outlet kneaded at the other end with an electric motor in the same direction as indicated by arrows C and D in the same direction. Kneading machines having a plurality of kneading members 6 and 7 (6d, 6e, 7d, and 7e in the shown cross section) in the axial directions of the two first and second rotating shafts 4 and 5 that are parallel to each other. It is sectional drawing orthogonal to the longitudinal direction of the water heater 18 vicinity of the axial direction.

  In this embodiment, the phases of the eccentric portions 4c and 5c are different from the first embodiment.

  The eccentric portions 4c and 5c of the first rotating shaft 4 and the second rotating shaft 5 have the centers C41 and C51 of the eccentric portions centered on the rotation centers C42 and C52 of the first and second rotating shafts 4 and 5, respectively. The phase is the same with respect to the rotation direction.

  The kneading members 6 and 7 are provided at substantially the same position in the axial direction of the eccentric portion 4 c of the first rotating shaft 4 and the eccentric portion 5 c of the second rotating shaft 5. When viewed from the axial direction of the eccentric parts 4c, 5c of the rotary shafts 4, 5, the eccentric parts 4c of the first rotating shaft 4 protrude from both sides across the diameter of the eccentric parts 4c, 5c and are substantially at the same position in the axial direction. Each of the first kneading members 6d and 6e provided on the second rotating member 5 and the second kneading members 7d and 7e provided on the eccentric portion 5c of the second rotating shaft 5 are 90 degrees out of phase in the circumferential direction of the eccentric portions 4c and 5c. Are different. The radial length around the center C41 of the eccentric part 4c of the first rotating shaft 4 of the first kneading members 6d, 6e and the eccentric part 5c of the second rotating shaft 5 of the second kneading members 7d, 7e. The length in the radial direction centered on the center C51 is greater than the inter-axis distance CD between the first and second rotating shafts 4 and 5, and the first and second kneading during rotation. The lengths of the members 6d, 6e, 7d, 7e that do not interfere with each other, the length that the first kneading members 6d, 6e do not interfere with the eccentric portion 5c of the second rotating shaft 5, and the second kneading members 7d, 7e has a length that does not interfere with the eccentric portion 4c of the first rotating shaft 4.

  The tips of the kneading members 6d, 6e, 7d, and 7e in the rotor axial direction are in contact with the inner periphery provided in the sealed trough and the locus is similar to the outer shape of the leaf paddle that rotates with the outer periphery contacting or approaching each other. (See JP-A-11-104477 and JP-A-2006-75807).

  In this embodiment, the fixing pin 10 (10-3, 10-5, 10-7) fixed to the left side wall 2n of the trough 2 is projected from the upper side of the left side wall 2n of the rotary shaft 5 toward the rotary shaft 5. It is. As in the first embodiment, the fixing pin 10 enters between adjacent kneading members in the vicinity of the water heater 18 in the rotor axial direction. For this reason, the fact that the axial pitch between the kneading members on both sides where the fixing pin 10 in the vicinity of the water heater 18 enters is twice the pitch between adjacent kneading members where the fixing pin 10 does not enter is the first implementation. Similar to the example.

  A fixed pin 10A is provided at the same position in the rotor axial direction as the fixed pin 10 in FIG. The fixed pin 10 </ b> A stands upright toward the rotation center C <b> 42 of the rotation shaft 4. The relative position of the eccentric part 4c and the fixing pin 10A is the same as in the second embodiment.

  When the rotors 19 and 21 rotate in the same direction as indicated by the arrow Niha, the moving direction of the kneading members 6d and 6e is upward when passing through the opposing portions of the eccentric parts 4c and 5c, and the kneading members 7d and 7e The direction of movement is downward when passing through the opposed parts of the eccentric parts 4c, 5c, and the kneaded material is mixed alternately by the kneading members 6d, 6e and 7d, 7e at the opposed parts of the eccentric parts 4c, 5c.

  When the kneading member 7d or 7e moves from the bottom wall 2j to the left swash plate 2k and from the swash plate 2k to the left side wall 2n, the kneaded material becomes a large lump due to the addition of water from the water heater 18, or the kneading member 7d. , 7e may become bloated. When the kneading members 7d and 7e pass by the fixing pin 10, the kneaded material adhering to the kneading members 7d and 7e is scraped off. Further, the mass of the kneaded material sent to the position of the fixing pin 10 collides with the fixing pin 10 and is crushed by the kneading members 7d and 7e.

  When the kneading members 6d and 6e move along the right side wall 2n and the right swash plate 2k from the upper side of the eccentric part 4c, the kneaded material becomes a large lump due to the addition of water from the water heater 18, or the kneading members 6d and 6e. It may become bloated and bloated. When the kneading members 6d and 6e pass by the fixing pin 10A, the kneaded material adhering to the kneading members 6d and 6e is scraped off. Further, the lump of the kneaded material sent to the position of the fixing pin 10A by the kneading members 6d and 6e and by its own gravity collides with the fixing pin 10A and is crushed.

  Considering the state where the fixed pins 10 and 10A are not present, the kneaded material is directed to the right in FIG. 14 above the rotating shafts 4 and 5 and descends along the right side wall 2n and the swash plate 2k. On the lower side, it tends to move leftward on the bottom wall 2j in FIG. 14, and rises along the left swash plate 2k and side wall 2n. Of course, because of the thrust of the feed screws 24 and 25, such a kneaded product does not pass through the same position in the rotor axial direction, but a dumpling-like lump is formed in the vicinity of the hydrolyzer where the raw material remains in a powder state. In addition, the powder raw material clings together and expands the diameter. It is hydrated into an expanded dumpling-like lump. In addition, the powder raw material is cluttered.

  Also, since there is a powder raw material that does not have sufficient water in the vicinity of the water heater, if a fixed scraping member is not provided, the powder raw material will cling to the kneaded material adhering to the kneading member and become enlarged. To do. If water is added to the kneaded material enlarged on the kneading member, and the kneading member moves in the powder raw material, there is a risk that the powder raw material will further adhere to the kneading adhering to the kneading member and further enlarge. There is.

  A part of the mass of the kneaded product described above comes out on the kneaded product without being caught in the kneaded member and moves downstream on the kneaded product, but can be prevented by providing a fixed scraping member.

  In FIG. 14, it is assumed that the kneading members 6 and 7 stand upright in the radial direction of the eccentric parts 4c and 5c on the double spiral surface twisted in the same torsional direction around the center of each eccentric part 4c and 5c. In this case, the difference between the leads of the double spiral surface is assumed to be the pitch P shown in FIG. 12, and the kneading member 7d is scraped off the kneaded material adhering to one side in the axial direction by the fixing pin 10, and the kneading member 7e is fixed to the fixing pin. 10, the kneaded material adhering to the other side in the axial direction is scraped off. Similarly, the kneading members 6d and 6e are scraped off the kneaded material adhering to the opposite sides in the axial direction by the fixing pin 10A.

  Therefore, it is effective to provide a fixed scraping member even in a kneading machine in which the kneading member is on a double spiral surface twisted in the same twisting direction around the center of each eccentric portion.

  Although the embodiment has been described with respect to the kneader having the eccentric portion on the rotating shaft of the rotor, it can also be applied to the rotor having the rotating shaft not having the eccentric portion.

It is a longitudinal cross-sectional view of a kneading machine. It is AA sectional drawing of FIG. It is BB sectional drawing of FIG. It is CC sectional drawing of FIG. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a cross-sectional view which shows the effect | action of a kneading machine. It is a diagram for demonstrating the eccentric part of a rotor. It is a top view which shows the relationship between a fixing pin and a kneading member. It is a cross-sectional view showing another embodiment. It is a cross-sectional view showing still another embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Kneading machine 2 ... Trough 2a ... Inlet 2b ... Outlet 2c ... Upper opening 2d ... Trough main body 2e ... Trough lid 2f, 2g ... End plate 2h ... Stand 2i ... Partition wall 2j ... Bottom wall 2k, 2m ... Swash plate 2m1 ... Swash plate 2m2 ... Swash plate body 2m3 ... Base plate 2n ... Side wall 2o ... Angle 3 ... Motor 3a ... Speed reducer 4 ... Rotary shaft 4a, 4b ... Journal portion 4c ... Eccentric portion 4c1 ... Eccentric top 5 ... Rotating shaft 5a, 5b ... Journal part 5c ... Eccentric part 5c1 ... Eccentric top 6,6-1, 6-2, 6-4, 6-6, 6-8 to 6-29 ... Kneading member
7,7-1,7-2,7-4,7-6,7-8 to 7-29 ... kneading member
8 ... Bolt 8a ... Nut
DESCRIPTION OF SYMBOLS 9 ... Bearing unit 10, 10A, 10-3, 10-5, 10-7 ... Fixed scraping member 11 ... Bearing unit 12 ... Shaft seal member 13 ... Bed
DESCRIPTION OF SYMBOLS 14, 15 ... Bearing apparatus 16, 17 ... Gear 18 ... Hydrostatic machine 18a ... Nozzle 19, 21 ... Rotor 22 ... Adjustment gate 22a ... Long hole 22c ... Handle 22d ... Corner | angular part 22e ... Recessed opening 22f ... Lower edge 22g ... Opening 23 ... Rotary shaft coupling
24, 25 ... feed screw 26 ... screw 27 ... through bolt nut 28, 28a, 28b, 28c, 28d ... feed paddle 29, 29a, 29b, 29c, 29d ... feed paddle 31 ... bolt 32 ... shaft seal member C41, C51 ... Eccentric center C42, C52 ... Center of rotation C51 '... Temporary eccentric center C41L ... Center line CD ... Center distance CDL ... Line
D ... bisector
L ... Radius
M ... Distance between perpendiculars
N: Distance between centers
R1 ... Mixing chamber R2 ... Kneading chamber
V1, V2 ... perpendicular e, e4, e5 ... eccentricity r ... radius r4, r5 ... eccentric radius

Claims (7)

First and second rotations of two parallel horizontal axes driven by an electric motor in a trough having an inlet for raw material at one end and an outlet for a kneaded material obtained by kneading the raw material at the other end In a kneading machine having a rotor with a large number of kneading members in the axial direction of these rotating shafts on the shaft,
A mixing chamber for mixing the material to be processed and the raw material provided by partitioning the trough in the axial direction of the rotor, and a kneading chamber for adding and kneading the mixed raw material;
A water heater for adding water to the kneading chamber;
A rod-shaped kneading member fixed in an axial direction on the first and second rotating shafts in the kneading chamber;
In the vicinity of water added by the water heater, each is fixed to the trough and protrudes toward the first and second rotation shafts, and overlaps adjacent kneading members that rotate when viewed in the axial direction of the rotation shaft, and close to each other in the axial direction of the rotation shaft. A fixed scraping member;
A kneader characterized by comprising:   The kneading machine according to claim 1, further comprising a fixed scraping member that enters between a plurality of adjacent kneading members in the axial direction of the rotating shaft.   The kneading member provided along the side wall of the trough and rotated to the upper side of the rotating shaft has a rotor that moves in a direction away from the trough side wall, and projects obliquely downward from the side wall side toward the rotating shaft. The kneader according to claim 1 or 2, further comprising a fixed scraping member.   The kneading machine according to claim 3, wherein the rotation direction of the first rotation shaft and the second rotation shaft is a rotation direction in which the kneading members on the upper side of each rotation shaft approach each other.   The kneading machine according to any one of claims 1 to 4, wherein the fixed scraping member has a pin shape.   The kneading machine according to any one of claims 1 to 5, wherein a gap is provided in the axial direction between the kneading member adjacent to the fixed scraping member. The kneading machine according to any one of claims 1 to 6, wherein an inner wall surface of the trough has a point-symmetric wall surface about a bisection point of a line connecting the rotation centers of the rotation shafts.

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