JP4859051B2 - Kneading machine - Google Patents

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 the solidification treatment of fly ash and the like, a solidifying agent is mixed with and added to fly ash and kneaded and then solidified 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.

  As the kneading member, a plate-shaped tree leaf paddle is closely arranged in the axial direction and fixed to two rotating shafts at the same position in the axial direction (Patent Document 1), and in addition to the tree leaf paddle, the axial direction A screw pad provided on the outer periphery of the rotating shaft, a rod paddle provided in the radial direction of the rotating shaft, a rod paddle provided on the first rotating shaft and a lot paddle provided on the second rotating shaft Some are arranged so as not to overlap each other in the axial direction (Patent Document 2).

  The leaf paddles and rod paddles of the tree are both arranged in a spiral shape around the rotation axis in the axial direction.

  (Patent Document 3) shows a kneading machine in which rod paddles at the same location in the axial direction of two parallel rotors are entangled with each other while shifting the pitch in the circumferential direction.

  In these kneaders, materials that cause a hydration reaction, such as cement, are mixed with raw materials such as EP ash, fly ash, etc., and kneaded by adding water. Therefore, without stopping the kneader when the operation of the kneader is finished, the supply of raw materials and cement is stopped, and after the kneaded material is no longer carried out from the outlet of the kneader, the idling operation is further continued. (Patent Document 4). According to this idling operation, the load at the time of starting can be reduced even if the kneaded material is solidified after a lapse of time after the kneading machine is stopped.

    A kneader capable of reducing the starting load after stopping for a long time by changing the configuration of the kneading machine is disclosed in Patent Document 5 (Patent Document 5). According to the kneader described in Patent Document 5, the following effects are obtained.

  Since there is an eccentric part, the kneaded material is kneaded by the whirling of the eccentric part even by rotation about the center of the rotating part of the eccentric part. In addition, when kneading members having the same length are provided in the radial direction of the eccentric portion from the center of the eccentric portion, the number of kneading members near the inner wall surface of the trough is provided with the kneading members having the same length on the rotating shaft without the eccentric portion. Less than the case. Since there are few kneading members near the inner wall surface of the trough, the starting torque when the kneaded material is fixed is small.

  The number of kneading members from the center of the rotating shaft to the inner wall of the trough is one near the eccentric direction of the eccentric portion at the same time for the kneading members at the same position in the axial direction. Other kneading members in the same position in the axial direction are far from the trough inner wall. That is, since one kneading member is close to the trough inner wall at the same position in the axial direction through the first rotating shaft and the second rotating shaft, the amount of kneaded material near the trough inner wall can be reduced during idling. And since it is one kneading member about one place of an axial direction which gives a big torque load at the time of fixation, the starting load of a kneading machine can be made small.

  Since each eccentric part of the first rotating shaft and the second rotating shaft has the same center line with respect to the rotation direction around the respective centers of the first and second rotating shafts, By rotation, the kneaded material is pushed away from the farthest position on the outer periphery of the eccentric part as viewed from the rotation axis for 180 degrees upstream in the rotational direction of the eccentric part. Therefore, the eccentric part also contributes to the kneading action. The density of the kneaded material is sparse for 180 degrees in the circumferential direction on the downstream side in the rotation direction of the eccentric portion. Therefore, the force of adhering to the eccentric part of the kneaded product after stopping the kneader becomes small, which can contribute to the reduction of the starting torque at the time of adhering. The fact that each eccentric part has the same phase means that the distance between the opposing parts of the outer peripheral surface of each eccentric part is constant, so the length of the kneading member is the same as that of a normal rotating shaft without an eccentric part. That is, there are no particular restrictions on making the lengths of the kneading members equal.

  Further, since the kneading members are arranged at the same position in the axial direction of the eccentric portion of the first rotating shaft and the eccentric portion of the second rotating shaft, the kneading members are disposed at different phases, so that the first and second rotations When the shaft rotates in the same direction at the same rotational speed, the first and second kneading members at the same position in the axial direction knead the kneaded material twice at different positions at the same position. large. Since the kneading member is on the spiral surface twisted in the same twist direction around the center of the eccentric portion of each rotating shaft, the kneaded material is kneaded from the inlet side toward the outlet side and fed uniformly.

  Further, in terms of production, the arrangement of the attachment portion for attaching the kneading member to the eccentric portion of the rotating shaft is easy to produce because the phase change is uniform at regular intervals in the axial direction.

  Further, by having a gap between the kneading members adjacent in the axial direction, for example, when a solid material having a size of gravel can pass, the kneaded material in which such a solid material is mixed can be kneaded. There is no overload and solids are not crushed.

The first and second kneading members at the same position in the axial direction of the eccentric portion of each rotating shaft made an angle of 45 degrees with respect to the line connecting the centers of the eccentric portions of the first and second rotating shafts. In this case, 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.
Japanese Utility Model Publication No. 61-7037 JP-A-11-104477 JP 2005-313097 A Japanese Patent Laid-Open No. 9-10728 JP 2006-75807 A

It has been found that the following phenomenon occurs when the invention described in Patent Document 5 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. Therefore, 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 the conventional kneader, the kneading members are arranged almost spirally in the axial direction of the rotating shaft. Therefore, the machining positioning of the mounting portion must be related to the axial direction and the circumferential direction, and the number of processing steps of the mounting portion to the rotating shaft is greatly required.

    In the present invention, the starting torque is small at the start of operation, the raw materials can be kneaded well, and no overload is applied. The kneaded material on the rotor can be sufficiently kneaded between the rotors to sufficiently knead the fed raw materials. An object is to provide a kneader.

    An object of the present invention is to provide a kneading machine that can easily process the rotating member of the attachment portion of the kneading member to the rotating shaft and can apply a feeding force to the kneaded material.

In the first aspect of the present invention, two parallel horizontal shafts driven by an electric motor in a trough having an inlet of a raw material at one end and an outlet of a kneaded material obtained by kneading the raw material at the other end A kneading machine having a rotor provided with a large number of kneading members in the axial direction of these rotating shafts on the first and second rotating shafts,
A rotating shaft having journal portions supported by bearings at both ends and an eccentric portion having a center line decentered from the rotation center of the rotating shaft between both journal portions;
A large number of kneading members arranged and fixed in the axial direction on the eccentric part of each rotating shaft, and the kneading members on the upper side of each rotating shaft are in the rotational directions of the first rotating shaft and the second rotating shaft. In the kneading machine which is the direction of rotation close to
When the eccentric center of the eccentric portion of the first rotation shaft and the eccentric center of the eccentric portion of the second rotation shaft pass on a straight line passing through the rotation center of the first rotation shaft and the rotation center of the second rotation shaft, The direction of the eccentric center of the eccentric portion of the first rotating shaft viewed from the rotation center of the first rotating shaft is the same as the direction of the eccentric center of the eccentric portion of the second rotating shaft viewed from the rotating center of the second rotating shaft. It is a kneader characterized by being.

According to a second aspect of the present invention, a kneading member group that does not give feed force to the kneaded material at the eccentric portion of each rotating shaft and a feeding blade piece that does not circulate more than one round in the circumferential direction in a part of the axial direction. In addition, the kneading machine according to the first invention is provided at a plurality of locations in the kneading member group.

According to a third aspect of the present invention, there is provided a mixing chamber for mixing the material to be processed and a solidifying agent immediately below the raw material inlet, and the movement of the raw material through an adjustment gate capable of adjusting the opening of the opening from the mixing chamber. A kneading chamber for adding and kneading the raw material mixed on the downstream side in the direction,
A feed screw at each eccentric portion on the downstream side of the adjustment gate with respect to the flow of the raw material, and the opening of the adjustment gate is a top along the locus of movement of the eccentric top of the eccentric portion when viewed in the axial direction of the rotor. The kneading machine according to the first or second invention, wherein the kneading machine has a semicircular opening and an opening opening in a square shape downward from the upper semicircle.

The fourth invention of the present invention has two parallel horizontal axes 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. A kneading machine having a rotor provided with a large number of kneading members in the axial direction of these rotating shafts on the first and second rotating shafts,
A rotating shaft having journal portions supported by bearings at both ends and an eccentric portion having a center line decentered from the rotation center of the rotating shaft between both journal portions;
A large number of kneading members arranged and fixed in the axial direction on the eccentric part of each rotating shaft, and the kneading members on the upper side of each rotating shaft are in the rotational directions of the first rotating shaft and the second rotating shaft. In the kneading machine which is the direction of rotation close to
The eccentric part of each rotating shaft has a kneading member group that does not give feed force to the kneaded material, and a feed blade piece that does not circulate more than one round in the circumferential direction in a part of the axial direction and at a plurality of locations. 1. A kneader characterized in that the feed blade pieces provided on the first and second rotating shafts are in the same position in the axial direction.

A fifth invention of the present invention is the kneader according to the fourth invention, wherein the feeding blade piece has a spiral surface centered on the center of the eccentric portion.

According to the first aspect of the present invention, the rotation direction of the first rotation shaft and the second rotation shaft is the rotation direction in which the kneading members on the upper side of each rotation shaft approach each other, and the eccentric portion is the rotation shaft. Therefore, kneading by the eccentric part is performed. The kneaded material is caught between the eccentric portion of the first rotating shaft and the eccentric portion of the second rotating shaft. And the kneaded material which moved to the lower side of the eccentric part is sent so that it may be divided into two substantially to the trough side wall side. The kneaded material between the trough side wall and the rotor is brought to the trough central portion by the upper portions of the two rotors approaching each other. Therefore, the kneaded material does not rise on the trough side wall side. Since there is an eccentric portion, the adhering of the kneaded member after the idling operation at the end of work to the solidified kneaded material differs in the circumferential direction of the rotating shaft, so the load torque at the start after the kneaded material is solidified can be reduced. In addition to the above effects, since the distance of the horizontal component at the center of each eccentric portion at each rotational position of the rotating shaft is constant, the distance between the opposing portions of each eccentric portion is substantially constant. Therefore, the kneaded material between the opposed parts of the eccentric parts is not in the first rotating shaft and the second rotating shaft, although the kneading members on the upper side of the rotating shafts are close to each other. The effect of kneading is great because it is swung in the left-right direction and is kneaded by the kneading member together with the movement.

According to the invention which concerns on Claim 2, since there exists a feed blade piece, even if a kneading member does not have a feed capability, a kneaded material can be sent. Since there are a plurality of feed blade pieces in the axial direction, the feed force can be leveled so as not to compact the kneaded material. Since the kneading member group on the upper side of the rotor does not have a force for feeding the kneaded material, even if the kneaded material is lifted up on the upper side of the rotor, the kneading material is sequentially wound on the spot.

According to the third aspect of the invention, since an appropriate amount of a constant amount of raw material is constantly provided to the kneading member, the kneaded material homogeneously kneaded is discharged from the outlet side by the effect combined with the arrangement of the kneading members. In addition, mixing of raw materials and mixed kneading can be clearly separated, the supply of the raw materials can be controlled accurately, and almost constant supply of the raw materials to the kneading members in the kneading chamber is possible, and the raw materials are directly fed onto the rotor. It is prevented from wrapping around.

According to the invention which concerns on Claim 4 , a kneaded material can be uniformly sent from upstream to downstream in a trough.

According to the invention which concerns on Claim 5 , a feed blade piece can send a kneaded material effectively by having a spiral surface.

    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 as shown in FIG. 2, and a part thereof is indicated by a circled number.

  As shown in FIGS. 1 to 5, an electric motor 3 with a speed reducer 3a is installed 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. 11, the eccentric centers C41 and C51 of the eccentric parts 4c and 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 rotation 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 in the radial direction around the centers of the eccentric parts 4c and 5c, and are eccentric to the eccentric part 4c. They are provided at the same or substantially the same position in the axial direction of the portion 5c. The kneading members 6 and 7 are rod-shaped and can be selected to be inclined in the radial direction with respect 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, for example, lot no. In the kneading member No. 2, the rotating shaft 4 side is assigned lot number 6 with a hyphen on 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. 2 to 29 kneading members are provided. Except for a position where a feed blade piece to be described later is provided, the kneading members 6 and 7 are provided with the eccentric portions 4c and 5c equally arranged in the circumferential direction at each location in the axial direction.

    On the rotors 19 and 21, feed paddles 28a to 28d, 29a to 29d, feed screws 24 and 25, a second group kneading member 6-1 as a first group kneading member in order from the inlet 2a side to the outlet 2b side. 6-29 and 7-1 to 7-29 are provided. In the second group of kneading members, feed paddles 6A (6A-1, 6A-2, 6A-3) and 7A (7A-1, 7A-2, 7A-3) as feed blade pieces are interposed. .

  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 kneading machine, FIG. 2 is a sectional view taken along the line AA in FIG. 1, FIG. 3 is a sectional view taken along the line BB in FIG. It is DD sectional drawing of 1. 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, there are provided a large number of kneading members 6 and 7 in the axial direction around the eccentric portions 4c and 5c, and members (described later) for feeding the raw material or the kneaded material. The rotating shafts 4 and 5 provided with the kneading members 6 and 7 and the member for giving the feed are referred to as rotors 19 and 21.

  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 has a trough body 2d having a wall surface so as to surround the kneading members 6 and 7 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 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 for sealing one end of the rotary shafts 4 and 5, for example, a gland packing (not shown). 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).

    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 13a.

  As shown in FIG. 4, a water heater 18 is provided in the trough 2 between the inlet 2a and the outlet 2b. 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.)
In FIG. 2, the center lines of the rotors 19 and 21 are on the horizontal plane. Each rotor 19, 21 has kneading members 6, 7. 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 arranged in the axial direction 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 in the vertical direction in the state of FIGS. 1 and 2 (see FIG. 6). The kneading members 6 and 7 are fixed to the outer periphery 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 has feed screws 24 and 25, the second group kneading members 6-1 to 6-29, and 7-1 to 7-29 beyond the longitudinal direction of the feed screws 24 and 25, the second group. The kneading members 6-1 to 6-29 and 7-1 to 7-29 are provided with swash plates 2k at both lower corners of the main body 2d of the trough 2, and swash plates 2m inside the side walls 2n. Is provided. 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.

  The trough 2 is symmetrical with respect to the bisector D of the line connecting the rotation centers C42 and C52 (see FIG. 6) of the rotation shafts 4 and 5. Further, the cross-sectional shape in FIG. 6 connecting the bottom plate 2j, the side wall 2n, and the swash plates 2k and 2m of the trough 2 is point-symmetric about the bisection point 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 6-1 to 6-29 and 7-1 to 7-29 is effectively performed.

  The trough 2 is provided with an adjustment gate 22.

(Adjustment gate)
As shown in FIGS. 1, 5, and 8, the adjustment gate 22 is fixed to an upper partition wall 2i 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 portion of the adjustment gate 22 includes a corner portion 22d that approaches the swash plate 2k when the adjustment gate 22 is at the lower limit position of FIGS. 5 and 8, and an eccentric top 4c1 of the eccentric portions 4c and 5c that rotate when the adjustment gate 22 is at the same position. It has a concave opening 22e that approaches the rotation trajectory of 5c1. 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. 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. 8, 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 in contact with 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 under the adjusting gate 22 from the inlet 2a side to the outlet 2b side.

  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. The kneading members 6-1 to 6-29 and 7-1 to 7-29 are prevented from being directed. 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, perform mixing of the raw materials as much as necessary, and then the second group kneading members 6-1 to 6-6. 29 and 7-1 to 7-29. 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), 29 (29a, 29b, 29c, 29d), and the multiple kneading members 6 and 7 are connected to the eccentric part 4c of the first rotating shaft 4 and the first part. 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. Feed paddles 6A (6A-1, 6A-2, 6A-3), 7A (7A-1, 7A-2, 7A-3) are arranged so as to overlap the kneading members 6, 7 at a plurality of axial positions of the rotary shafts 4, 5. ) Is provided.

(Configuration of rotor in mixing chamber)
The trough 2 immediately below the inlet 2a is partitioned by 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. 8, 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, 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 inclined with respect to 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.

  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 screws 24 and 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.

  The kneading members 6-1 to 6-29 and 7-1 to 7-29 are arranged on the eccentric portions 4c and 5c in the axial direction from immediately downstream of the feed screws 24 and 25, respectively.

    FIG. 7 of the enlarged view of FIG. 4 shows the 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, 6-3 to 6-29, 7-1, 7-3 to 7-29 have the same shape as the kneading members 6-2 and 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.

  The kneading members 6-1 to 6-29 and 7-1 to 7-29 may be attached to the eccentric portions 4c and 5c by detachably fixing these kneading members to the eccentric portions. 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.

    Each kneading member at the same position in the axial direction is provided with three eccentric portions 4c and 5c arranged equally. 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: 2... 15) (odd rows of kneading members) at odd positions counted from the right to the left of the kneading chamber R2 are even rows. Of the kneading members 6-2i, 7-2i (i: 2... 14) are shifted by a half pitch.

  In this example, the kneading members 6-1 to 6-29 and 7-1 to 7-29 are provided with three eccentric portions 4c and 5c, respectively, so that they are located at the same position in the axial direction of the eccentric portions 4c and 5c. Some kneading members are equally distributed at 120 degrees in the circumferential direction. The even-numbered kneading members 6-2i, 7-2i (i: 2 ... 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: 2 ... 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. 7, 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 plates 2k and 2m of the trough, the kneading members 6-2a and 7-2a approach the tips of the kneading members 6-2a and 7-2a and pass through the swash plates 2k and 2m positions.

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. 7, when the radius of the eccentric parts 4c and 5c is r4 and r5 and the center distance CD of the rotary 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. 15).

  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) are almost 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.

(Feed paddle)
In the kneading chamber R2, feed paddles are provided as feed blade pieces at a plurality of positions in the axial direction between the kneading members.

  As shown in FIGS. 1 and 2, the feed paddles 6A (6A-1, 6A-2, 6A-3) and 7A (7A-1, 7A-2, 7A-3) are respectively provided in the eccentric portions 4c and 5c. Are provided at three locations in the same axial direction.

  As shown in FIG. 1 and FIG. 6, each feed paddle 6A, 7A is an outer periphery of plate-like blade portions 6A1, 7A1 and eccentric portions 4c, 5c substantially along a spiral surface provided on the center line of the eccentric portions 4c, 5c. Have bases 6A2 and 7A2. The blade portions 6A1 and 7A1 are twisted so as to feed the kneaded material toward the outlet 2b when the rotary shafts 4 and 5 rotate. In this example, the blade portions 6A1 and 7A1 are flat plates along a spiral surface provided in the axial direction around the eccentric centers C41 and C51 on the outer periphery of the eccentric portions 4c and 5c.

  As shown in FIG. 6, the feed paddles 6A and 7A are chevron shapes in which the base portions 6A2 and 7A2 are in contact with the outer circumferences of the eccentric portions 4c and 5c. The base 6A2 is quadrangular in the projection of FIG. The blade portion 6A1 faces the diagonal direction of the quadrangular shape in FIG. 1 of the base portion 6A2 (in FIG. 1, reference numerals 6A1 and 6A2 are omitted). The base 7A2 is the same as the base 6A2. The base 6A2, 7A2 and the eccentric parts 4c, 5c are inserted with the blade parts 6A1, 7A1 in between, the two through-bolt nuts 27 are tightened, and the feed paddles 6A, 7A are fixed to the outer periphery of the eccentric parts 4c, 5c. Has been.

  As shown in FIG. 2, among the feed paddles 6A, 7A, the two feed paddles 6A-1, 7A-1, 6A-3, 7A-3 in the axial direction of the eccentric portions 4c, 5c As shown in FIG. 6, when the eccentric center C41 is directly above the rotational center C42 of the rotary shaft 4 and the eccentric center C51 is directly below the rotational center C52 of the rotary shaft 5, it faces the same direction in the lateral direction. . The positions of the feed paddles 6A-1, 7A-1, 6A-3, 7A-3 are the lot numbers of the kneading members 6, 7. 6 and 7, lot no. Overlap at positions 20 and 21. In addition, the lot No. of the kneading members 6 and 7 The feed paddles 6A-2 and 7A-2 located at positions 13 and 14 are eccentric portions 4c in a lateral direction opposite to the feed paddles 6A-1, 6A-3, 7A-1 and 7A-3 shown in FIG. It protrudes from 5c.

  At a position where the feed paddles 6A and 7A are located, kneading members that interfere with the feed paddles 6A and 7A are not attached. There are two types of cases that interfere in this case. One is a case where the kneading member attached to the eccentric parts 4c, 5c provided with the feed paddles 6A, 7A interferes with the feed paddles 6A, 7A, that is, the whole kneading member cannot be attached around the eccentric parts. The other is a case where the rotating shafts 4 and 5 rotate and the kneading member provided in the eccentric portions 4c and 5c interferes with the feed paddle 6A or 7A provided in the counterpart eccentric portion 5c or 4c.

  In this example, the kneaded material in the same position as the feed paddles 6A and 7A in the axial direction is addressed to two locations in the axial direction, and no kneading member is attached to one kneading member in the circumferential direction at each of these two locations.

(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 6-1 to 6-29 and 7-1 to 7-29 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. And a kneaded material is kneaded as it goes to the exit side from the kneading members 6-1 and 7-1.

  Although the kneading members 6-1 to 6-29 and 7-1 to 7-29 can be kneaded, they cannot send the kneaded material. The feed force is generated by feed screws 24 and 25 and feed paddles 6A and 7A. The fed kneaded material comes on the outlet 2b and is discharged from the outlet 2b.

(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. 8, 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 shown in FIG. 8 and the eccentric part 5c rotates 90 degrees clockwise, the opposite part of the eccentric parts 4c, 5c moves toward the eccentric part 5c. 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 is rotated 90 degrees from the position of FIG. 8 and then rotated 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. 15, 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 at 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 moving diameter connecting the center of rotation 41 and the eccentric center 41 (clockwise from the rotational center C42 as the origin), and the rotational angle of the rotational center 52 and the eccentric center 51 from the original line OL of the moving diameter 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 so as to be directly upward and downward with respect to the centers of the eccentric portions 4c and 5c at the position shown in FIG. The feed paddles 28d and 29d protrude in the radial direction so as to be directly downward and upward with respect to the centers of the eccentric portions 4c and 5c at the position of FIG. 2 (see FIG. 8). 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)
As shown in FIG. 5, the openings 22e and 22g of the adjustment gate 22 overlap the kneading members 6 and 7 when viewed from the axial direction, and 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.

  9 to FIG. 14 show any one of the kneading members 6-2 to 6-28 and 7-2 to 7-28 in the even-numbered rows, for example, the kneading members 6-4 and 7-4 on the left side of FIG. 1 and FIG. It is a side view seen from the direction toward the right. 9 to 14, 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. 9, 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 6-4 and 7-4 are arranged at three circumferential positions around the center of the eccentric portions 4c and 5c, respectively, and are kneaded in the radial direction 6-6a, 6-4b, 6-4c, 7- 4a, 7-4b, 7-4c. Each kneading member 6-4a, 6-4b, 6-4c, 7-4a, 7-4b, 7-4c protrudes from the eccentric centers C41, C51 with the same length in the radial direction.

  Here, the even-numbered kneading members 6-2a to 6-28a, 6-2b to 6-28b, and 6-2c to 6-28c are arranged in parallel in a short pitch in the axial direction. Hereinafter, the kneading members 6-4 and 7-4 will be described assuming that the kneading members are even-numbered rows. The kneading members 6-4a and 7-4a have a larger protruding amount from the rotation centers C42 and C52 than the protruding amounts of the kneading members 6-4b, 7-4b, 6-4c, and 7-4c. The protruding amounts of the kneading members 6-4b, 7-4b, 6-4c, and 7-4c from the rotation centers C42 and C52 are equal.

  When the rotor 19 rotates to the position shown in FIG. 9, the kneading member 6-4a has a large amount of protrusion from the rotation center C42, and therefore moves so as 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 6-4a.

  As shown in FIGS. 9 to 10, 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 6-4a. At this time, the volume occupied by the kneaded product 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 6-4b, 6 -4c rotates in the direction in which the kneaded material moves after leaving the kneading member 6-4a to add the kneaded material to the kneaded material, and the kneaded material is shown in FIG. Move to.

  In FIG. 9, the kneading members 7-4b and 7-4c have a protruding amount from the rotation center C52 smaller than the protruding amount of the kneading member 7-4a. Therefore, since the locus of the tip of the kneading member 7-4b 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. 9 to 10, when the rotor 21 rotates, the kneading member 7-4b 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.

  9 to 10, the kneading member 7-4c kneads the kneaded material and rotates clockwise around the heel rotation center C52, and since the displacement is large upward, the kneading member 7-4c penetrates the surface m3 of FIG. 9 upward. . The tip of the kneading member 7-4a moves from the bottom wall 2j of the trough 2 to a position close to the swash plate 2k in FIGS. 9 and 10, 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. 10 to 11, the kneading member 6-4b sends the kneaded material upward, and sends the kneaded material below the surface m2 to the left. In the state of FIG. 10, 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 6-4b reaches the surface m2, the kneading member 6-4b having a small amount of protrusion from the rotation center C42 divides the surface m2 into the surfaces m5 and m6. Since the amount of protrusion of the kneading member 6-4b is small, the ability to lift the kneaded material below the surface m6 is smaller than that of the kneading member 6-4a, so the surface m6 falls on the side wall 2n side of the kneading member 6-4b and the trough 2 on the right side. It is a state.

  At this time, the kneading member 6-4c 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. 10 to 11, the kneading member 7-4a 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 7-4a from the rotation center C52 is large, and the tip passes through a portion near the swash plate 2k and the side wall 2n on the left side of the trough 2, so the surface m8 in FIG. 10 to the surface m8 in FIG. The surface of the kneaded product is substantially maintained as shown in FIG.

  As shown in FIGS. 10 to 11, the kneading member 7-4b 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 7-4c rotates and moves clockwise, and the kneading member 6-4a wraps around the opposite portion of the eccentric parts 4c, 5c to form the surface m5, and the kneading member 7-4c is the front in the traveling direction. Since the kneaded material is moved to the concave portion m4 in FIG. 10, the concave portion m4 is fitted like the concave portion m9 in FIG.

  As shown in FIGS. 11 to 12, the kneading member 6-4a rotates and moves downward, so that the kneaded material under the surface m5 in FIG. m5 changes downward like the surface m10. The kneading member 6-4b protrudes from the kneaded material surfaces m10 and m11 as shown in FIG. The kneading member 6-4c has a small protruding amount from the rotation center C42, and the tip is far away from the right swash plate 2k and the side wall 2n, so that the kneaded material is kneaded. The surface of the kneaded product is raised from m6 to the surface m11.

    As shown in FIGS. 11 to 12, the kneading member 7-4a 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 7-4b 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. 12, the surface of the kneaded material on the downstream side in the moving direction of the kneading member 7-4a is pushed up to form a surface m13. The kneading member 7-4c reaches the surface m10 changed from the surface m5, and the recess m9 in FIG. 11 disappears. A new recess m14 is formed between the surfaces m10 and m12.

    As shown in FIGS. 12 to 13, the kneading member 6-4a approaches the bottom wall 2j of the trough 2 and passes the kneaded material on the heel bottom wall 2j to the right after passing through the opposed parts of the eccentric parts 4c and 5c. Move it. The kneading member 6-4b goes from above to the opposite part of the eccentric parts 4c, 5c, and as shown in FIGS. At this time, since the space under the surface m11 is expanded by the movement path of the kneading member 6-4b, the kneaded material is lowered from the surface m11 to the surface m15. The kneading member 6-4c kneads the kneaded material on the side wall 2n side and moves upward. Then, the kneading member 6-4c shows a tip on the surface from the kneaded material falling from the surface m11 to m15, and divides a part of the surface m15 into the surface m16.

    As shown in FIGS. 12 to 13, the kneading member 7-4a has a large protruding amount from the rotation center C52, so that it moves to lift the kneaded material up to the left side wall 2n surface of the trough 2, and is evenly adjacent in the axial direction. Since a part of the kneaded material is delayed between the kneading members in the row, the surface m17 of the kneaded material is formed substantially along the locus of the tip of the kneading member 7-4a. The kneading member 7-4b kneads the kneaded material in the vicinity of the left swash plate 2k and urges the kneaded material in opposition to the kneaded material below the heel surface m17 attempting to decrease by its own weight. The kneading member 7-4c moves downward in the opposite portions of the eccentric parts 4c, 5c to mix the kneaded material kneaded by the kneading member 6-4a.

  As shown in FIGS. 13 to 14, 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 7-4a. 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 7-4b, 7 -4c rotates in the direction in which the kneaded material moves after leaving the kneading member 7-4a to add 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. 13, the kneading members 6-4b and 6-4c have a smaller amount of protrusion from the rotation center C42 than the amount of protrusion of the kneading member 6-4a. Therefore, the locus of the tip of the kneading member 7-4b passes through a low position, so that it is like the surface m15 of the kneaded material.

  As shown in FIGS. 13 to 14, when the rotor 19 rotates, the kneading member 6-4b 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 m19 is formed between the portions. However, the kneaded material between the opposed parts of the eccentric parts 4c, 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.

  In FIGS. 13 to 14, the kneading member 6-4c kneads the kneaded material and rotates counterclockwise about the heel rotation center C42, and since the displacement upward is large, the kneaded material m15 in FIG. It becomes like this. This produces surfaces m21 and m22. The tip of the kneading member 6-4a moves from the bottom wall 2j of the trough 2 to the right swash plate 2k in FIGS. 13 and 14, and the kneaded material is moved to the right side of the swash plate 2j. The plate 2k is urged to move upward.

    When FIGS. 9 to 10 and FIGS. 13 to 14 are compared, the drawings are symmetrical. Accordingly, the description of the kneading member 6 or 7 in FIGS. 9 to 10 is the same as that of the kneading member 7 or 6 in FIGS. 13 to 14.

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

    Even-numbered kneading members 6-2i (i: 2 ... 14), 7-2i (i: 2 ... 14), odd-numbered kneading members 6- (2i-1) (i: 2 ... 15), 7- ( 2i-1) (i: 2... 15) have a phase difference of 60 degrees in the circumferential direction. Therefore, the kneading members 6-2i (i: 2... 14) and 7-2i (i: 2... 14) described above are explained in the state of the phase difference of 60 degrees in the odd-numbered kneading members 6- (2i-1). ) (I: 2 ... 15), 7- (2i-1) (i: 2 ... 15).

    Since these even-numbered and odd-numbered kneading members are kneaded at the same time, the kneading members 6-2i (i: 2... 14) and 7-2i (i: 2. The kneaded material is not sufficiently kneaded by the even-numbered kneading members 6-2i (i: 2... 14) and 7-2i (i: 2... 14). Even if it is not moved, the kneading members 6- (2i-1) (i: 2 ... 15) and 7- (2i-1) (i: 2 ... 15) are sufficiently kneaded and mixed by the kneading members. A part is stirred 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.

(Operation of feed paddle in second kneading chamber)
The kneading members 6-1 to 6-29 and 7-1 to 7-29 do not act to send the kneaded material when the rotors 19 and 21 rotate.

    Since the feed screws 24 and 25 feed the raw materials, the feed screws 24 and 25 are provided with the ability to feed the kneaded material that has been hydrated and kneaded by the water heater 18 to at least the position where the feed paddles 6A-1 and 7A-1 act. Accordingly, at least the feed screws 24 and 25 feed the kneaded material up to the kneading members 6-7 and 7-7 located at the same axial position as the feed paddles 6A-1 and 7A-1.

    When the rotors 19 and 21 rotate, the feed paddles 6A-1 and 7A-1 rotate and feed the kneaded material to the feed paddles 6A-2 and 7A-2 on the downstream side of the feed paddles 6A-1 and 7A-1. The feed paddles 6A-2 and 7A-2 rotate when the rotors 19 and 21 rotate, and have the ability to feed the kneaded material to the next downstream feed paddles 6A-3 and 7A-3. When a part of the kneaded material fed by the feed paddles 6A-2 and 7A-2 reaches the kneading members 6-16 and 7-16 above the outlet 2b, it falls from the outlet 2b. Since the kneaded material is sticky, a part of the kneaded members 6-16 and 7-16 to the kneading members 6-21 and 7-21 immediately before the feed paddles 6A-3 and 7A-3 falls toward the outlet 2b. Part of the kneading members 6-16 to 6-21 and 7-16 to 7-21 adhere to the kneading members and proceed downstream.

    The kneaded material that has reached the feed paddles 6A-3 and 7A-3 is sent downstream. At this time, from the kneading members 6-22 to 6-29 and 7-22 to 7-29, the successively kneaded material leaves the kneading members and falls through the outlet 2b.

    The kneading members 6-16 to 6-29 and 7-16 to 7-29 located at the outlet 2b are the even-numbered kneading members 6-2i (i: 8 ... 14), 7-2i (i: 8 ...). 14) and odd-numbered kneading members 6- (2i-1) (i: 9... 15), 7- (2i-1) (i: 9... 15) are opposed to the eccentric portions 4c and 5c in the axial direction. Since the spacing is close, the kneading members in the odd and even rows 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 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 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 with respect 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 and 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 burden of gears and power is reduced.

[Other Examples]
Now, assuming that the eccentric center C51 is a temporary eccentric 51 ', the eccentric centers of the eccentric portions 4c and 5c are always in a symmetrical position with respect to the bisector D of the line CD connecting the rotation centers C42 and C52. . Therefore, the distances Mmax and Mmin between the opposing portions between the eccentric portions 4c and 5c are Mmax = N + 2e− (r4 + r5) and Mmin = N−2e− (r4 + r5), where N is the length of the line CD, and the eccentric portions are opposed to each other. The amount of change in the distance between the parts is 4e.

    In this way, the kneaded material is wound from the top to the bottom on the opposing portion between the eccentric portions 4c and 5c, so that the kneaded material is added at both eccentric portions in the process of reducing the distance between the opposing portions of the eccentric portion. 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 directly above the rotational center of one rotating shaft, and the eccentric center of the eccentric part of the other rotating shaft is set to the other rotating shaft. 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.

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 DD sectional drawing of FIG. FIG. 4 is an enlarged view of FIG. 3. FIG. 5 is an enlarged view of FIG. 4. FIG. 6 is an enlarged view of FIG. 5. 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.

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 2n ... Side wall 3 ... Electric motor 3a ... Speed reducer 4 ... Rotating shaft 4a, 4b ... Journal part 4c ... Eccentric part 4c1 ... Eccentric top 5 ... Rotating shaft 5a, 5b ... Journal part 5c ... Eccentric part 5c1 ... Eccentric top 6,6-1 ... 6-29 ... kneading member 6A, 6A-1, 6A-2, 6A-3 ... feed paddle
7, 7-1 to 7-29 ... kneading member 7A ... 7A-1, 7A-2, 7A-3 ... feed paddle
DESCRIPTION OF SYMBOLS 8 ... Bolt 9 ... Bearing unit 11 ... Bearing unit 12 ... Shaft seal member 13 ... Bed 13a ... Leg 14, 15 ... Bearing device 16, 17 ... Gear 18 ... Water machine 19, 21 ... Rotor 22 ... Adjustment gate 22a ... Slot 22c ... grip 22d ... corner 22e ... concave 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 C41, C51 ... Eccentric center C42, C52 ... Center of rotation C51 '... Temporary eccentric center C41L ... Center line CD ... Center distance CDL ... Line D ... Divided line L ... Radius M ... Distance between perpendicular lines N ... Size of center distance R1 ... Mixing chamber R2 ... Kneading chamber V1 , V2 ... perpendicular e, e4, e5 ... eccentricity r ... radius r4, r5 ... eccentric radius

Claims (5)

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 A kneading machine having a rotor provided with a large number of kneading members in the axial direction of these rotating shafts on the shaft,
A rotating shaft having journal portions supported by bearings at both ends and an eccentric portion having a center line decentered from the rotation center of the rotating shaft between both journal portions;
A large number of kneading members arranged and fixed in the axial direction on the eccentric part of each rotating shaft, and the kneading members on the upper side of each rotating shaft are in the rotational directions of the first rotating shaft and the second rotating shaft. In the kneading machine which is the direction of rotation close to
When the eccentric center of the eccentric portion of the first rotation shaft and the eccentric center of the eccentric portion of the second rotation shaft pass on a straight line passing through the rotation center of the first rotation shaft and the rotation center of the second rotation shaft, The direction of the eccentric center of the eccentric portion of the first rotating shaft viewed from the rotation center of the first rotating shaft is the same as the direction of the eccentric center of the eccentric portion of the second rotating shaft viewed from the rotating center of the second rotating shaft. A kneader characterized by the above. A kneading member group that does not give feed force to the kneaded material at the eccentric part of each rotating shaft
The kneading machine according to claim 1, further comprising a plurality of feed blade pieces that are not circulated more than one round in the circumferential direction in a part of the axial direction and in the kneading member group. The mixing chamber that mixes the material to be processed and the raw material containing the solidifying agent immediately below the inlet of the raw material, and the downstream of the moving direction of the raw material through the adjustment gate that can adjust the opening of the opening from the mixing chamber. A kneading chamber for adding and kneading the raw materials;
With respect to the flow of the raw material, it has a feed screw at each eccentric part immediately downstream of the adjustment gate,
The opening of the adjustment gate is characterized by having an upper semicircular opening along the locus of the movement of the eccentric top of the eccentric portion when viewed in the axial direction of the rotor, and an opening opening in a square from the upper semicircle downward. The kneader according to claim 1 or 2. 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 A kneading machine having a rotor provided with a large number of kneading members in the axial direction of these rotating shafts on the shaft,
A rotating shaft having journal portions supported by bearings at both ends and an eccentric portion having a center line decentered from the rotation center of the rotating shaft between both journal portions;
A large number of kneading members arranged and fixed in the axial direction on the eccentric part of each rotating shaft, and the kneading members on the upper side of each rotating shaft are in the rotational directions of the first rotating shaft and the second rotating shaft. In the kneading machine which is the direction of rotation close to
The eccentric part of each rotating shaft has a kneading member group that does not give feed force to the kneaded material, and a feed blade piece that does not circulate more than one round in the circumferential direction in a part of the axial direction and at a plurality of locations. 1. The kneading machine characterized in that the feed blade pieces provided on the second rotating shaft are in the same position in the axial direction. The kneading machine according to claim 4, wherein the feed blade piece has a spiral surface centered on the center of the eccentric portion.