KR100361755B1 - A mixing and kneading apparatus - Google Patents

Abstract

The present invention provides a kneading apparatus capable of kneading with high efficiency. The plurality of rods 20a and 22a are attached to the rotary shaft 20 and the rotary shaft 22 in a axial direction so as to be screwed. The tip of the rod of one shaft is disposed so as to almost contact the surface of the other shaft, and the kneaded material attached to the surface of the other shaft by rotation is scraped off. In the sections X1 and X3, the rods are one set, and in the sections X2 and X4, the rods are formed in two pairs, and the kneading state of the kneaded material to be conveyed is good and the conveyance amount is suppressed. In the section X5 just before the kneaded material is discharged, the rod of the rotating shaft 20 is formed in four sets, and the rod of the rotating shaft 22 is formed in five sets. Since the kneaded material is kneaded well in a section of two to several tanks, the kneaded material can be kneaded with high efficiency in a small space.

Description

Kneading apparatus {A MIXING AND KNEADING APPARATUS}

The present invention relates to a kneading device, more specifically, a kneading member in a screw shape, which is erected in an axial direction at a predetermined pitch interval and rotates in conjunction with the rotation of the first rotating shaft, and the kneading member is screwed. The present invention relates to a kneading apparatus having a second rotating shaft which is erected in an axial direction at predetermined pitch intervals.

Conventionally, a kneading apparatus (mixer) of this kind is mixed with a solidifying agent mixed dust such as dehydration sludge, incineration or dust collection dust, cement, or powder, for example. In general, a predetermined feed pitch is used for two axes of rotation as described in Japanese Patent Laid-Open No. 62 (1987) -157113 and Japanese Patent Laid-Open No. 8 (1996) -126827. A kneading member such as a rotary blade is mounted in a screw shape, and the dust and the like, into which the kneading member is introduced, are conveyed and discharged while kneading with each other.

In the above-mentioned conventional apparatus, the kneaded material is attached to the surface of the kneading member or the rotating shaft, and the two rotating shafts are rotated at an inconstant speed in order to prevent the work efficiency from being deteriorated due to drying and solidification. The so-called self-cleaning method of scraping and kneading the kneaded material attached to one shaft by the other rotary blade etc. is employ | adopted. At this time, the pitch of rotary blades etc. is set to the ratio determined by inconstant velocity so that a kneading | mixing member may not contact each other.

In such a conventional kneading apparatus, in order to lengthen the mixing time with the kneading member in order to make kneading better, the kneading material is conveyed according to the rotation of the rotating shaft, so that the conveying path must be lengthened, that is, the rotating shaft must be lengthened in the axial direction. Therefore, there is a problem that the device is enlarged.

Accordingly, an object of the present invention is to provide a kneading apparatus which can be kneaded with a simple structure and is compact in high efficiency.

1 is a plan view showing a part of the structure broken away.

2 is a side cross-sectional view showing the structure of the device.

3 is an explanatory diagram showing mounting of rods in a plurality of bath sections.

<Explanation of symbols for the main parts of the drawings>

11: motor, 20: shaft,

22: rotating shaft, 30a: inlet,

30b, 30c: Inspection port, 30e: Outlet port

In the present invention, in order to solve such a problem, the kneading member is screwed in the axial direction at a predetermined pitch interval and rotates in conjunction with the rotation of the first rotating shaft and the first rotating shaft, and the kneading member is screwed. In the kneading apparatus having a second rotary shaft which is formed in the axial direction at a given pitch interval, and kneaded through the kneading member in the rotation of the first rotary shaft and the second rotary shaft, the kneaded material is conveyed in the rotary shaft direction. The first and second rotary shafts are rotated at an inconstant speed, and each kneading member is disposed at a pitch interval determined by the inconstant velocity ratio, and the kneading members of the first and / or second rotary axes are in a plurality of sections along the rotation axis. Adopted a structure of groups.

Due to such a structure, the kneaded material is kneaded and conveyed by a plurality of sets of kneading members in a predetermined section, so that the kneaded material can be kneaded with high efficiency in a small space and the whole apparatus can be made small.

Next, the present invention will be described in detail according to the embodiment shown in the drawings.

1 and 2 show the structure of a kneading apparatus (mixer) which is an embodiment of the present invention. The board | substrate 10 is provided with the motor 11, This motor 11 rotates the rotating shaft 20 supported by the bearing plate 14 through the pulleys 12 and 13 at one end. The rotary shaft 20 serving as the drive shaft (main shaft) is supported by the bearing plate 16 whose other end is fixed to the housing 30, and the gear 17 is fixed to the bearing plate 14 side. The gear 17 meshes with the gear 18 of the rotating shaft 22 supported by the bearing plates 14 and 16, and accordingly, when the motor 11 rotates, the rotating shaft 22 cooperates with the rotation of the rotating shaft 20. Rotate). As a result, the rotating shaft 22 becomes a driven shaft (vertical axis).

On the axial surface of the rotating shafts 20 and 22, a plurality of rods 20a and 22a are mounted in a screw-like manner at a predetermined pitch in the axial direction. As for the mounting of this rod, the self-cleaning method is adopted as described in Japanese Patent Application Laid-Open No. 62-44969, Japanese Patent Application Laid-Open No. 62-157113, Japanese Patent Application Laid-Open No. 8-126827, etc. The tip of the rod of the shaft is disposed so as to almost contact the surface of the other shaft. Accordingly, the tip of each rod is scraped off by kneading the kneaded material attached to the surface of the other shaft by the rotation of each shaft.

In order to achieve such self-cleaning, the rotation ratio of the rotating shaft 20 and the rotating shaft 22 is set to N-1 to N inequal speed. In this embodiment, for example, the rotating shaft 20: the rotating shaft 22 = 5: The rotation ratio is set to 4 (N = 5). Moreover, in order to improve the self-cleaning effect and not to mutually collide with a rod, each rod is arrange | positioned on the circumferential screw line at a pitch interval of Nxn degrees. In this embodiment, for example, n = (N-1) + N = 9 is selected, and accordingly, each rod 20a of the rotating shaft 20 is made to be pitched at a 45 ° pitch interval in the rotating direction, and the rotating shaft ( Each rod 22a of 22) is also mounted in a rotational direction at a pitch interval of 36 °.

Moreover, in this invention, in order to mix | blend a kneaded material better, the rod is formed in many tanks. For example, as shown in the drawings, the rods 20a and 22a are formed in a set while maintaining the pitch in the sections of X1 and X3, but the rods 20b are formed with respect to the rods 20a in the sections of X2 and X4. The rods 20b and 22b are erected and formed (i.e., the rods 20b and 22b in a phase of ± 90 ° or 180 ° and the rod 22b with respect to each rod 22a in a phase of ± 72 ° or ± 144 °). 20a) and (20b) and (22a) and (22b) protrude radially opposite directions from the same axial position. In the section of X2, two rods are made into two sets, while in the section of X4, many (14) rods are made into two sets in the same manner as the rod of section X2.

In addition, in the figure, the rod of X5 of the left end is formed by standing more than two sets of rods. Specifically, in the case of the rotating shaft 20, the rods 20c and 20d which extend in the radial direction from the same shaft center position beside the rods 20a and 20b are erected and formed. The rod 20c is formed by standing 90 ° with respect to 20a and the rod 20d with 90 ° away from 20b. Therefore, in the rotating shaft 20, 4 sets of rods protrude 90 degrees radially away from the same shaft center position. In addition, in the rotating shaft 22, in addition to the rods 22a and 22b in this section, three rods are formed upright at an angle of 72 ° to each other in the radial direction from the axial center position (in FIG. Showing]. In addition, the blocking plate 40 is provided adjacent to the plurality of sets of sections X5.

In particular, Fig. 3 (A) to Fig. 3 (F) show how the rod is mounted on each rotating shaft in the vicinity of the section X5.

Each of the above-described rotary shafts 20 and 22 is housed in the housing 30 of the apparatus of FIG. 2, and the inlet 30a for injecting the material to be kneaded into the housing 30, and the check holes 30b and 30c for confirming the kneading state. ), A water pipe (nozzle) 50 for supplying water to the kneaded material, and an outlet 30e for discharging the kneaded material.

Next, the operation of the device having such a structure will be described.

Various dust, dust, powder, chemicals, etc. to be kneaded are introduced through the inlet port 30a. The injected object is conveyed to the left along the axis in the section X1 while being stirred and kneaded by the rotating shaft 20 rotated by the motor 11 and the rods 20a and 22a mounted to the rotating shaft 22. When the section X2 is reached, the kneaded material is kneaded with two sets of rods 20a, 20b, 22a, and 22b. In this section X2, since the rod has two sets, the kneading becomes good, and the amount of conveyance in the axial direction decreases and is suppressed. In this section X2, water is supplied from the inlet 30d.

Subsequently, the kneaded product enters into one set of sections X3 again, and then kneading is repeated through two sets of sections X4 and finally discharged from the discharge port 30e via four to five sets of sections X5. In the last section X5, since there are a plurality of tanks, the dough is multiplied, but the conveying amount is extremely suppressed, and since the blocking plate 40 is provided, the flow to the discharge port 30e can be smoothed.

And the kneading | mixing state in a predetermined | prescribed section can be inspected or observed through each inspection opening 30b, 30c.

In the above-described example, the kneading member is rod-shaped, but is not limited thereto. The kneading member may be paddle-shaped or wing-shaped. In addition, the cross-sectional shape of the rod is preferably circular, but may be in the shape of an ellipse, a rectangle, a polygon, a triangle, or the like.

The inequality ratio is not limited to 5: 4, and N can be an inequality ratio with an arbitrary number of two or more. In addition, the pitch interval of the kneading member to be axially emptied can be a predetermined value determined by this inconstant velocity ratio, and can be, for example, a number other than n = 9 in the above-described example.

In addition, the section can be expanded and contracted without being limited to the length in the axial direction of the sections X2, X4, and X5 of two or more pairs. For example, in the last section X5, the rods in the length section for one rod in the axial direction are constituted by a plurality of jaws, but this can be extended to further suppress conveyance and improve the final kneading state.

In the illustrated example, there are 1, 2, 1, 2, and 4 (5 to 5) tanks in the axial direction, but 1, 2, 4 to 5 tanks are omitted by omitting the X2 section. ), Or can be installed more than one set, two sets section.

In the illustrated embodiment, the rods on both sides of the rotary shafts 20 and 22 are two to many tanks in the section of two to many tanks, but only one rotary shaft may be two to many tanks.

As described above, in the present invention, the kneaded material is kneaded and conveyed by a plurality of sets of kneading members in a predetermined section, so that the kneaded material can be kneaded with high efficiency in a small space and the whole apparatus can be made small.

Claims (4)

A first rotational shaft formed by standing the kneading member along the axial direction at a pitch interval given in the screw shape, and rotating in conjunction with the rotation of the first rotational shaft, and the kneading member given the screw shape in the pitch interval. In the kneading apparatus having a second rotary shaft that is erected in the axial direction in the axial direction, kneaded through the kneading member by the rotation of the first rotary shaft and the second rotary shaft and conveys the kneaded material in the rotary shaft direction , The first rotating shaft and the second rotating shaft are rotated at an inconstant speed, and the kneading members are arranged at a pitch interval determined by the inconstant velocity ratio, and at least one of the first and second rotating shafts is disposed. A kneading apparatus provided with a plurality of jaws in a portion of said rotating shaft. The method of claim 1, A kneading apparatus, characterized in that the kneading member is formed in two sets in the partial section. The method according to claim 1 or 2, A kneading apparatus, characterized in that the kneading member is formed in a number of tanks more than two tanks in the region where the kneaded material is discharged. The method according to claim 1 or 2, A kneading apparatus, characterized in that a blocking plate is provided in the region where the mixture is discharged, and is connected to the kneading member to partially block the kneaded product.