JP2006055704A - Inclined vibrating mixer and inclined vibrating dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve the drying efficiency of an inclined vibrating dryer in which the object to be treated is thrown in a horizontally arranged drum, agitated by vibrating the drum and dried by introducing a heating medium into a jacket covering the drum. <P>SOLUTION: This inclined vibrating dryer is composed of the horizontally arranged drum 1, a vibration unit 4 for vibrating the drum, air springs 5, 6 for respectively supporting the front and rear of the drum 1 separately, an internal pressure controlling means 8 having a pneumatic source 8a for controlling the internal pressures of air springs 5, 6 to obliquely move the drum 1 back and forth and a heating medium supplying unit 10 for supplying the heating medium into the jacket 9 covering the drum 1. The object which is to be treated and is thrown in the drum 1 is heated/dried by the heating medium introduced into the jacket 9 while being agitated by the vibration and tilting of the drum 1. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a tilting vibration mixer that can efficiently perform uniform mixing of a granular material or a mud-like object, and a tilting vibration dryer that is provided with a drying function and has excellent drying efficiency.

  A vibration processing apparatus for charging powder particles in a horizontally arranged drum (tubular processing container) supported by an elastic body, stirring and mixing the powder particles in the drum while vibrating the drum, and the drum of this apparatus as a jacket Patent Document 1 below discloses a vibration drying apparatus that heats and drys a granular material in a drum subjected to vibration by flowing a heat medium in the jacket.

  The vibration processing apparatus and the vibration drying apparatus proposed in Patent Document 1 are such that a drum is formed into a frustum cylinder so that an object to be processed such as a granular material is provided without providing a rotating blade for stirring in the drum. However, the uniformity of mixing is not improved by simply applying vibration, especially when processing viscous objects or easily processed objects. , The time spent mixing is also longer.

In addition, the vibration drying apparatus causes variation in drying due to insufficient stirring, and the drying time becomes longer. In addition, the processing object having a variation in drying has a disadvantage that the discharging performance from the drum is poor, and adjustment for improving the discharging and an operation for cleaning and removing the remaining processing object in the drum are required.
JP 11-248349 A

  The present invention has been made in view of the above, and a tilting vibration mixer in which the drum is tilted while being vibrated to improve the uniformity of mixing and the mixing efficiency of the workpiece, and the drying It is an object of the present invention to provide a tilt-type vibration drying apparatus that provides functions and achieves uniform drying and efficiency.

  In order to solve the above-mentioned problems, in the present invention, a horizontally arranged drum for charging a workpiece, a vibration device for vibrating the drum, and a plurality of airs individually supporting the front and rear portions of the drum are provided. A spring and an internal pressure control means for tilting the drum back and forth by controlling the internal pressure of the air spring, so as to stir the workpiece in the drum by simultaneously applying vibration and tilt to the drum. A tilting vibration mixer is provided.

  In addition, the tilt type vibration mixer includes a jacket for wrapping the drum and a heat medium supply device for flowing a heat medium inside the jacket, and the workpiece to be processed put into the drum is stirred by vibration and tilt of the drum. There is also provided a tilting vibration dryer which is heated and dried by a heat medium introduced into the jacket.

  In this tilting vibration mixer and tilting vibration dryer, the left and right sides of the drum are supported by the air springs respectively, and the internal pressure control means controls the internal pressure of the left and right air springs so that the drums can be moved left and right. You may make it tilt. The left and right tilt of the vibratory dryer helps to improve the thermal efficiency.

Preferred forms of the tilting vibration mixer and tilting vibration dryer of the present invention are listed below.
1) The discharge port of the object to be processed provided on the drum is biased toward one end of the drum, and the vibration exciter is installed at the lower center of the drum.
2) A vibrator that generates vibration by rotating an eccentric weight is adopted as the vibration device so that the direction of vibration applied to the drum can be switched by changing the rotation direction of the weight.
3) A vacuum suction means for depressurizing the inside of the drum is attached to the vibration drying device.

  In the vibration mixer according to the present invention, the front and rear of the drum are supported by air springs, and the internal pressure of the front and rear air springs is controlled so that one is higher and the other is lower. Tilt and alternate the direction of the tilt to cause forward and backward tilting (pitching). The pitching causes the workpiece to flow forward when the front part of the drum descends while jumping in the drum, and to the rear side when the rear part of the drum descends, increasing the momentum and range of movement of the workpiece. Thereby, the stirring effect is enhanced, and the uniformity of mixing and the mixing efficiency are improved.

  Further, in the vibration drying apparatus of the present invention, the effect of stirring the object to be processed is enhanced by the pitching of the drum, so that the object to be processed is heated evenly on average, thereby achieving uniform drying. In addition, since heating is performed uniformly, heating efficiency is increased, drying time is shortened, and efficient and economical drying is performed. Furthermore, the uniform drying reduces the amount of work to be left in the drum without being discharged, thereby reducing the time for adjustment and cleaning.

  When the drum is tilted back and forth, it is no longer necessary to provide a drum outlet at the center lower part of the drum.For this reason, it is possible to improve the vibration balance of the drum by installing a vibration exciter at the center lower part of the drum. In addition, it is possible to change the direction of vibration applied to the drum by using a vibrator that generates vibration by rotating an eccentric weight, thereby improving the uniformity of mixing and improving the drying efficiency. Can be increased.

  If the drum is also tilted in the left-right direction (rolling is caused), the contact area of the object to be processed with respect to the drum is widened, and the heating efficiency by the heat medium is improved as compared with the case where no rolling occurs. Therefore, for the vibration drying device, the structure in which the left and right sides of the drum are supported by air springs and the internal pressure control means controls the internal pressure of the left and right air springs to tilt the drum to the left and right is also effective. Will do.

  Hereinafter, an embodiment of the tilting vibration mixer of the present invention is based on FIGS. 1 and 2 of the accompanying drawings, and an embodiment of the tilting vibration dryer of the present invention is based on FIGS. 3 and 4 of the accompanying drawings. Each will be explained.

  1 includes a horizontally arranged drum 1, a vibration device 4 that vibrates the drum 1, air springs 5 and 6 that individually support front and rear portions of the drum 1, an air spring 5, 6, a frame 7 that supports the drum 1 via 6, and an internal pressure control means 8 that controls the internal pressure of the air springs 5 and 6 to tilt the drum 1 back and forth.

  A drum 1 as a processing container has a cylindrical shape, and includes a charging port 2 with a lid and a discharging port 3 having a power-driven shutter (not shown). The object to be processed is introduced from the inlet 2 into the inside of the drum 1 which has a sealed structure and the scattering of the object to be processed is eliminated, and is taken out from the outlet 3 after the processing. The discharge port 3 is provided at a position biased toward one end of the drum, and for this purpose, the vibration device 4 can be provided at the center lower portion of the drum 1.

  The vibration exciter 4 employs a well-known vibrator that generates vibration by rotating an eccentric weight, and is attached to the lower center of the drum 1 so that it can tilt together with the drum 1. . The vibration device 4 can switch the direction of vibration applied to the drum 1 by reversing the rotation direction of the weight.

  The air springs 5 and 6 are provided for the purpose of absorbing vibration from the drum 1 and preventing it from being transmitted to the outside. The anti-vibration air spring is also used as an elevating actuator, and the drum 1 is tilted by changing the height of the support point by controlling the internal pressure of the air spring. The air springs 5 and 6 may be arranged one by one on the front and rear parts of the drum 1, but if arranged on the left and right parts of the front and rear parts of the drum, the drum 1 is controlled by controlling the internal pressure of the left and right air springs. It can be tilted left and right.

  The internal pressure control means 8 includes an air pressure source 8a shown in FIG. 2, a switching valve 8b that switches an air supply path, and a control unit 8c that controls the operation of the switching valve.

  The tilt type vibration mixer configured in this manner inputs materials such as powder particles to be mixed into the drum 1 from the inlet 2, and controls the internal pressure of the air springs 5 and 6 while vibrating the drum 1. Tilt back and forth at the same time. When the internal pressures of the air springs 5 and 6 are changed so that they are alternately opposed to each other, the movement of one of the air springs 5 and 6 expanding and the other contracting is repeated. For this reason, the drum 1 tilts back and forth (causes pitching), and the material in the drum flows to the front and back of the drum while jumping and is efficiently and uniformly mixed. The drum 1 is vibrated, for example, about 20 times per second, but a tilting period of about once per minute is sufficient.

  The air pressure source 8a may supply a constant pressure of compressed air. By simply switching the connection state of the air spring to the air pressure source 8a and the exhaust port with the switching valve 8b, the height of the front and rear air springs changes and the drum 1 tilts. Therefore, the tilt mechanism is not consumed, and a quiet tilt with less noise is possible. In addition, since the spring constant of the air spring hardly changes even if the height is changed, the vibration isolation effect by the air spring is not impaired.

  The tilting vibration dryer of FIG. 3 is similar to the tilting vibration mixer of FIG. 1 except that a jacket 9 that covers the drum 1, a heat medium supply device 10 that supplies a heat medium into the jacket 9, and a vacuum inside the drum 1. A vacuum suction means 11 for pulling and reducing the pressure is added.

  The heat medium supply device 10 introduces a heat medium such as steam supplied from the heat medium supply source 10a into the jacket 9 from the medium inlet 10b and collects the heat medium that has passed through the jacket 9 from the medium outlet 10c. Provided. Further, the vacuum suction means 11 is provided with a vacuum or the like connected to a suction nozzle 11 a provided on the drum 1 to evacuate the drum 1.

  In the tilting vibration dryer of FIG. 3 configured as described above, the drum 1 tilts back and forth while vibrating, so that an object to be processed (wet powder particles, mud, etc.) put into the drum 1 is present. The drum 1 that is effectively stirred and heated by the heat medium is efficiently heated and uniformly and efficiently heated. For this reason, drying is made uniform and drying time is shortened. Further, the uniform drying smoothly discharges the object to be processed from the drum, so that the object to be processed is less likely to remain in the drum, and it is possible to reduce troubles such as cleaning.

In the illustrated vibration dryer, the discharge port 3 is at a position biased toward one end of the drum 1, and the area of the inner wall surface (contact surface with the object to be processed) at the center of the drum that is important for drying does not decrease. In addition, the vibration device 4 is in the center of the drum 1 so that the vibration balance is maintained. Furthermore, it is possible to effectively move the object to be processed by switching the rotation direction of the weight of the vibration device 4, and to improve the uniformity of drying, the efficiency, and the discharge of the object to be processed.

  As shown in FIG. 4, the left and right sides of the drum 1 are supported by air springs 5L, 5R, 6L, and 6R (the symbols L and R are attached for convenience to distinguish the left and right air springs), respectively. In this case, the drum 1 can be tilted (rolled) in the left-right direction by making a difference between the internal pressures of the left and right air springs 5L and 5R and 6L and 6R. By this rolling, the contact range of the object to be processed with respect to the drum 1 is expanded, the amount of heat transfer through the drum is increased, the thermal efficiency is improved, and the drying efficiency is further increased. If the pitching and rolling of the drum are caused to shift with respect to each other, the internal pressure control of the air spring does not become complicated.

The side view which shows embodiment of the tilting type vibration mixer of this invention 1 is a circuit diagram showing an outline of internal pressure control means provided in the tilting type vibration mixer of FIG. The side view which shows embodiment of the tilting type vibration dryer of this invention Circuit diagram showing outline of internal pressure control means for performing rolling motion

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Drum 2 Input port 3 Discharge port 4 Excitation apparatus 5, 6 Air spring 7 Base 8 Internal pressure control means 8a Air pressure source 8b Switching valve 8c Control unit 9 Jacket 10 Heat medium supply device 10a Heat medium supply source 10b Medium inlet 10c Medium outlet 11 Vacuum suction means 11a Suction nozzle

Claims (6)

  A horizontally arranged drum for charging a workpiece, a vibration device for vibrating the drum, a plurality of air springs individually supporting the front and rear portions of the drum, and an internal pressure of the front and rear air springs are controlled. A tilt type vibration mixer having an internal pressure control means for tilting the drum back and forth, and stirring the workpiece in the drum by simultaneously applying vibration and tilt to the drum.   2. The tilting vibration according to claim 1, wherein left and right front and rear portions of the drum are respectively supported by the air springs, and the internal pressure control means controls the internal pressure of the left and right air springs so that the drum is also tilted left and right. Mixing machine.   The tilt type vibration mixer according to claim 1 or 2, wherein a discharge port of an object to be processed provided on the drum is biased toward one end of the drum, and the vibration exciter is installed at a lower center portion of the drum.   The tilt type vibration mixer according to claim 3, wherein a vibrator that generates vibration by rotating an eccentric weight is adopted as the vibration device, and the direction of vibration applied to the drum can be switched.   The tilting vibration mixer according to any one of claims 1 to 4, further comprising: a jacket that wraps the drum; and a heat medium supply device that causes a heat medium to flow inside the jacket. A tilting vibration dryer that is heated and dried by a heat medium introduced into the jacket while stirring by vibration and tilting of the drum.   The tilting vibration dryer according to claim 5, further comprising a vacuum suction means for decompressing the inside of the drum.

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