JPS62241547A - Contact reactor by concentric double cylindrical rotor - Google Patents

Abstract

PURPOSE:To prevent the formation of a deposit on the surface of a sphere by precipitating the following concentric double cylindrical rotor in a fluidized phase wherein a filler such as a sphere or a granule is packed in an annular cylindrical space between inner and outer cylinders and vertically connecting the axial line of the rotor to a driving device. CONSTITUTION:In a fluidized phase 1, spherical fillers 7 are packed in the space between an outer cylinder 2 and an inner cylinder 3 and an all-face closing plate 5 and an annular closing plate 4 are provided to both top and bottom end faces. When a rotor is rotated at high speed along an axial line 8 by a driving shaft 9, the fluidized phase is passed through the holes of the inner cylinder from a lower aperture part 6 of the inner cylinder and allowed to flow through the spaces of the fillers 7 while being refracted and streams passing through the holes of the outer cylinder are formed. The streams of the outer fluidized phase accompanied with the rotor are cut by a baffle plate 11 and thereby contact effect is further enhanced. Also a gas inflow pipe 10 is provided with the aim of promoting the circulation stream of the fluidized phase.

Description

Detailed Description of the Invention (Industrial Application Field) The present invention relates to the reaction between a fluid fine solid or liquid and a gas, the absorption of gas by a fluid fine solid or liquid, or the reaction between a liquid and a liquid or a gas. reaction between finely divided solids and liquids,
It can be used for extraction, mixing and dispersion, as well as mixing and dispersing fine particles with fluidity, and is inexpensive to manufacture, so it has a wide range of applications in various industries and is highly economical. This invention relates to a catalytic reaction device using a double cylindrical rotor.

(Prior art) The present inventors have previously developed a “catalytic reaction φ device in micropores” (
Patent No. 1286412 and below are referred to as “preceding patents”)
has already been put into practical use as a mixing and dispersing device for liquids and has been well received. Although the present invention is basically the same as the prior patent, the essential drawback of the prior patent is that the micropores of the porous material are easily clogged. (1) When solids that tend to cause clogging are present from the beginning, as in the case of dispersion, and (2) Between liquid and gas.

Alternatively, crystals or solids may be generated by a reaction between liquids.

Next, the prior patent assumes the use of porous materials. Slightly porous materials are commercially available such as unglazed ceramics, synthetic resin spheres with uniform particle size fused and molded, metal particles sintered and glass beads fused and molded, etc. It is difficult to obtain large diameter cylinders to use and enlarge the prior patents.

Moreover, some of these porous materials are unsuitable for use in mixing and dispersing high viscosity fluids accompanied by various solvents.

(Problems to be Solved by the Invention) The present invention attempts to solve the problems in the conventional contact reaction apparatus, such as the tendency for the micropores of the porous material to become clogged.

(Means for Solving the Problems) Therefore, in the present invention, one end of the upper surface or the lower surface of a concentric double cylinder consisting of an outer cylinder and an inner cylinder having a large number of holes is closed with a solid material, and the other end is closed with a solid material. The end is closed with an annular solid material with only the inner cylinder open, and a concentric double cylindrical rotor filled with a filler such as spheres or particles is placed in the fluid phase in the annular cylindrical space between the inner and outer cylinders. The axis of the rotor is made vertical, and the rotor is connected to a drive device to rotate at high speed.This is a means for solving the problem.

(Function) In the above configuration, if the annular space of one rotor is filled with filler such as balls, there will be no joined parts, and by rotating at high speed, individual balls etc. will be separated in proportion to the distance from the rotation axis. Since the circumferential speeds of the spheres are different, a speed difference occurs between the spheres, and as they move a little towards each other, their contact points move, preventing clogging and deposits from forming on the sphere surface, and playing a cleaning role. accomplish

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Fig. 1 is a longitudinal sectional view of a rotor with a cylindrical opening on the upper side, and Fig. 2 shows an opening on the upper side and the lower side. FIG. 3 is a longitudinal cross-sectional view of a rotor in which a partition member made of solid wood is provided in the intermediate portion, and FIG. 3 is a longitudinal cross-sectional view of a rotor in which three ribs are provided on the inner wall surface of the inner cylinder in parallel to the axis of the rotor. Fig. 4 shows an inner cylinder placed concentrically with the rotor, with a bottom diameter and a top diameter corresponding to 0.4 and O, l of the inner cylinder diameter, respectively.
This is a vertical cross-sectional view of a rotor in which three blades are radially provided on the axis of an inverted conical cylinder whose height is 1.2 times the cylindrical height of the rotor.

In Fig. 1, (1) is a fluid phase, (2) is an outer cylinder, and the space between it and the inner cylinder (3) is filled with a spherical filling (force is filled).

Both upper and lower end surfaces are provided with a full-scale blocking plate (5) and an annular blocking plate (4), and when the rotor rotates at high speed along the axis (8) by the drive shaft (9), the fluid phase flows through the lower opening of the cylinder. (6
) flows through the hole in the inner cylinder while being refracted through the gap in the packing, and a flow exits from the hole in the outer cylinder, and the flow of the external fluid phase accompanying the rotor is cut off by the baffle plate αυ. This further increases the contact effect.

A body inlet tube αQ is provided. Furthermore, by providing a mechanism that periodically rotates in reverse, the direction of movement of one sphere can be changed, thereby increasing the cleaning effect.

In FIG. 2, the cylinders are connected using partition members (5) (5') in the middle so that the cylinders are open at the top and bottom (6) (6'), and the effect of FIG. 1 is doubled. In this case as well, a gas supply pipe α@ and a baffle plate αυ can be installed.

In both cases of FIG. 1 and FIG. 2, the drive shaft (9) is provided so as to hang down into the fluid from above the fluid surface, but it may also be provided so as to be provided upright from within the fluid. X.

(2) in Figures 3 and 4 is the outer cylinder, and the inner cylinder (3)
A spherical filler (6) is filled in the space between the upper and lower ends, and a full-scale closing plate (5) and an annular closing plate (4) are provided on both upper and lower end surfaces, and in FIG. 3, a reinforcing ring α is provided on the outer surface of the outer cylinder. The plate between the punched holes is reinforced by attaching hot water, and the axis of the rotor (
8) are attached in parallel to the inner cylinder. In Fig. 4, three lips (141) are installed in the inner cylinder concentrically with the rotor, and the bottom diameter and the top diameter are respectively 0. 4, o, and i, and the height is 1.2 times the cylindrical height of the rotor.An inverted conical cylinder (Iω axis (8) is set upright with the axis (8) of the rotor aligned with the rotor axis, and radial Plant three blades 06) on the
Or, although it is not shown in the diagram, the diameter is 0.25 of the inner cylinder diameter.
By planting three blades (16) parallel to the axis (8) of the cylinder whose height is equal to that of the inverted conical cylinder,
The fluid phase in the inner cylinder is circulated to assist the rotation of the rotor to the outside.

As a measure to improve the circulation flow rate of high viscosity fluids containing solid particles, for example, ribs or blades may be attached directly to the drive rotation shaft on the inner cylinder at the top of the partition member shown in Figure 2 (1) When the rotor becomes larger, In this case, the inner tube shown in Fig. 4, the cylinder with vanes or the cylinder with vanes, or the inverted conical cylinder, is concentric with the rotor's drive rotation axis, but it is completely separated (separately and driven by a separate motor). is also possible.

Furthermore, if catalyst particles or catalyst supports are used as the filler between the double cylinders, the reaction is greatly enhanced and there is no need to separate the catalyst and the reaction product.

Furthermore, when mixing liquids that do not dissolve in each other,
It is suitable as a fractionator that homogeneously disperses a very small amount of dispersant.

In particular, it is suitable as a mechanical means for forming a stable dispersion of colloids or suspensions/soids in which solid particles are dispersed in a liquid with the aid of a suitable dispersant.

Next, when mixing and dispersing the fine-grained solids with poor fluidity, sufficient gas is introduced into the inner cylinder of the rotor to improve fluidity, thereby uniformly mixing and dispersing the fine-grained solids. Can be used as a device.

Further, in the present invention, the hole diameter and the number of holes per unit area of the outer cylinder and the inner cylinder forming the rotor may be the same, or they may be arbitrarily selected depending on the purpose. . 'Furthermore, it is also possible to insert a sieve or mesh having the necessary "mesh opening" into the inner surface of the outer cylinder and the outer surface of the cylinder.

The diameters of the inner and outer cylinders can be selected as required. Therefore, the distance between the inner and outer cylinders, that is, the thickness of the filling layer can be selected.

Further, fillers are commercially available in a wide variety of shapes and sizes, and the required void size and porosity can be selected.

As a general phenomenon, as the diameter of the rotor increases, cavities are formed inside the rotor, and in the case of highly fluid liquids, cavities are formed inside the rotor.
ation), and in the case of highly viscous liquids or fine solids with low fluidity, there are portions that do not flow. In particular, in the case of fine-grained solids, there is a large part that does not flow, and in extreme cases, only the part close to the inner surface of the rotor is flowing, so the flow flows through the rotor from the inner surface to the outer surface, which is a feature of the prior patent and the present invention. The amount of circulating flow formed is small (therefore, overall mixing and dispersion are poor).

In view of the above, it is recommended to provide a plurality of ribs on the inner surface of the inner cylinder parallel to its axis, or to provide the inner cylinder with a plurality of ribs concentrically with the rotor and whose height is the outer diameter of the rotor (normally the height of the rotor is 0.5 of the outer diameter). The diameter is the same as the cylinder, the bottom diameter is 1/4 to 1/3 of the inner diameter of the inner cylinder, and the top diameter is 1/20 of the inner diameter of the inner cylinder. A cylinder in which an inverted conical cylinder of ~1/1O is provided, and a plurality of blades are implanted on the outer surface of the cylinder or the inverted conical cylinder parallel to the axis of the cylinder and radially to the axis of the inverted conical cylinder, or an inverted conical cylinder By providing a conical cylinder, smooth mixing and dispersion can be achieved. That is, the ribs or blades serve to stir the inside of the shell, increase the fluidity of the internal fluid phase, and draw the fluid phase into the inner cylinder to facilitate the flow of the fluid phase from the inner cylinder to the outside of the outer cylinder. By increasing the circulating flow rate of the fluid phase that is formed by being released to the outside through the packed layer, the performance of mixing and dispersion is increased (and it is also effective in preventing clogging of the packed material). , it can solve the problems of mixing and dispersion of high viscosity liquids.

Hereinafter, the present invention will be further explained in detail with reference to the following specific examples.

[Specific Example 1] A coal water mixture (CWM) preparation test was carried out using the test apparatus shown in FIG. The plate between the punched holes in the outer cylinder and the inner cylinder has a thickness of O, S, a hole diameter of 1.5 mm, and a pitch of 3.
Made of 5uS304 punched metal, the outer cylinder has an outer diameter of 50 rrrml, the inner inner cylinder has an inner diameter of 3312 mm, the upper end is a full-face closed plate, and the lower end is an annular closed plate with the inner cylinder open.
4-r! to make both cylinders concentric double cylinders! Assemble the lower end plate using four round rods.

The space of both cylinders is filled with 21 da glass glass to form a rotor.The reduced height of one rotor is 35+o+, and the height of the komei version part is 28
mm - There is an M8 spiral (screw) hole in the center of the upper full-face blocking plate, and it is installed so that it hangs down into the liquid by a drive shaft.

First, put 4 oomA of water in a 500-mm beaker, and add a synthetic resin indicator piece (polyprobleno pellet) with a diameter h1 and a length 211011, which has a specific gravity close to that of water.
Several pieces were put into the water, the rotor was rotated once, and the movement of the indicator pieces was observed.

) is small, the marking pieces are scattered in various places underwater, but R, PoM, is 700 (peripheral speed 1.831 rL/s
When reaching ee ), all the marking pieces were hidden inside the inner cylinder and were no longer visible in the water (but when R, PoM, was made smaller, they reappeared in the water, forming a circulation flow and the device It was confirmed that the mixture met the purpose of mixing.

Next, after flotating 200 mesh bituminous coal powder, the sample was dried and dehydrated in a vacuum dehydrator, and 315 g was weighed.
After stirring and mixing with 00 rnl, it was confirmed through several experiments that the weight ratio of water to coal on the filter paper was always approximately 30. Ta.

So, add 6.7 ml of additive to 480.3 ml of water.
Add the above rotor in the total S o o rnl to 150
While rotating at zero rotation, a small amount of Nutsche's Fj residue (hereinafter referred to as the first residue of the first gap adjustment) containing 315 g of the coal powder was added in 40 minutes. After vacuum filtration, the total amount of ash residue was 450g.
The amount of water contained in the raw material slag was replaced with a liquid containing additives, and when the amount of sludge was measured, it was exactly 50.
It turned out that there was 0 ml.

From the above, the additives are added to the residue from the above refiltration in step 4.
s ml, which corresponds to about 1% of the ash residue.

In addition, when this 'F3 residue (hereinafter referred to as the second residue of the first notch adjustment) is transferred to a tall beaker and stirred vigorously with a two-blade stirrer at first, the '1s liquid gradually becomes viscous and becomes viscous.
After a few minutes, it became fluid. Therefore, in order to further complete the mixing, we continued to operate the stirrer in place of the rotor, and as a result, we obtained the following data.

Table 1 Operating status 60 during rotor CWM
0.10 1.17 220070
0.11 1.25 Replace only the -3100 filler with a rotor containing 3-diameter glass bulbs, continue operation, and follow the same procedure as above. When added every 10 minutes, there was no change in the apparent state of CWM (the same fluidity was maintained; the data at that time are shown in Table 2).

Table 2 Operating status of 3 rtml glass corporation rotor during CWM Vol t Kw Amp
R-P-M.

30 0.04 0.35
100040 0.05 0.63
150050 0.07
0.87 2+0060 (1,0
91,072600700,111,273200 In addition, the second pickle for the second adjustment, which is added every 10 minutes, is C
When viewed from the flowing surface of the WM, it was swallowed up by the eddy current and the shape it was in when it was added disappeared, confirming that the mixing action of the rotor was progressing sufficiently, making continuous operation possible. I admitted that.

Incidentally, the properties of CWM are as shown in Table 3.

Table 3 Properties of CWM Viscosity (eploo l/Sl 810 Calorific value [Kcal/9] 6322 Particle size distribution (Me
sh ] 200 or less Density [El/ml
] 1.22 [Specific Example 2] Conventionally, the oxidation rate of sulfite solution by air has been adopted as a measure of rotor performance judgment, so as the filler material for the rotor described in Specific Example 1, a diameter of 1 mm l, 2 flasks was used. , Adopts 3 x glass bulbs.

In particular, in the case of one l rran ball, the hole diameter of the punched hole guard plate is 1.
．． Since the diameter of the ball was larger than the diameter of the ball, a stainless wire mesh with an opening of 50 μm was inserted between the inner surface of the outer inner cylinder and the outer surface of the inner cylinder to prevent the ball from escaping from the hole. Table 4 shows the data, and (a) in Figure 5 shows the rotation speed of 400 OR.
, P, M, (b) is the rotation speed 550 OR.

The oxidation rate curves for P and M are shown below. Further, in FIG. 5, ■ is a 50μ wire mesh inserted rotor filled with 1aII glass bulbs, ■ is a rotor filled with 2× glass bulbs, and ■ is a rotor filled with 3× glass bulbs.

Table 4 Relationship between rotor properties and performance When the rotational speed is constant, the smaller the diameter of the filled glass bulbs, the more pronounced the air becomes. This trend will be further amplified as the number increases.

(Effects of the Invention) As detailed above, the present invention is based on the centrifugal force within the microscopic pores of the rotating cylinder using a porous material as disclosed in the prior patent by the present inventors (the principle of repeated circulation of fluid is used). This technology has completely eliminated the defective parts, greatly increased economic efficiency, and made it possible to increase the size of the product.It has already been used for mixing cosmetics, mixing foodstuffs such as seasonings, homogeneously mixing various drugs, and making paints. It has been developed into a wide range of applications, including the production of adhesives, which have recently become increasingly important, and the stirring and kneading process that is the final step in CWM production, in which additives are homogeneously mixed with coal and water, as an energy-saving measure. has been done.

Since both the outer cylinder and the inner cylinder use cylinders with a large number of holes, unlike porous materials, a rotor of a desired diameter can be fabricated relatively easily and inexpensively, and a reinforcing ring for reinforcement can be easily attached.

Fillers made of various materials and having various sizes and shapes are generally commercially available and can be obtained at low cost.

In addition, the inner and outer cylinders can be made of synthetic resin, but if they are made of metal, using a punched hole shield with various hole sizes and shapes can eliminate the drilling work and make manufacturing cheaper. Furthermore, depending on the application, ultra-fine voids may be required, but it is possible to use stainless steel wire mesh with an opening size of 1000 μm (TYLER mesh number/IN) by hand, and the inside of the outer cylinder and Since it is attached to the outside of the inner cylinder so as to surround the filling material, it contributes to economic efficiency in terms of manufacturing.

[Brief explanation of drawings]

Figures 1, 2, 3 and 4 are longitudinal sectional views of an apparatus showing examples of the present invention, and Figures 5(a) and 5(b) show the relationship between time and oxidation rate, respectively. It is a line diagram. Explanation of main parts of the figure ■...Fluid phase 2...Outer cylinder 3...Inner cylinder 4...Annular blocking plate 5...Closing plate 6...Opening 7...Filling material 8 ...Axis line 9...
Drive shaft Figure 5 (α) Time (minutes) (b) Time (8)

Claims (3)

[Claims] (1) One end of the upper or lower surface of a concentric double cylinder consisting of an outer cylinder and an inner cylinder with many holes is closed with solid wood for both the inner and outer cylinders, and the other end is an annular sealed cylinder with only the inner cylinder open. Blocked with real wood,
A concentric double cylindrical rotor filled with a filler such as spheres or particles in the annular cylindrical space between the inner and outer cylinders is submerged in the fluid phase, and the axis of the rotor is made vertical and connected to a drive device to achieve high-speed operation. A catalytic reaction device using a concentric double cylindrical rotor that rotates. (2) A catalytic reaction device using a concentric double cylindrical rotor according to claim 1, wherein a plurality of ribs are provided on the inner surface of the inner cylinder of the rotor in parallel to the axis of the rotor. (3) A cylinder with a diameter or bottom diameter of 1/4 to 1/3 of the inner diameter of the inner cylinder and a height of 1 to 1.5 times the outer diameter of the rotor is placed concentrically with the rotor in the inner cylinder of the rotor. Or, the concentric double cylinder according to claim 1, wherein an inverted conical cylinder is provided, and a plurality of blades are implanted on the outer surface of the cylinder or the inverted conical cylinder in parallel or radially with the axis of the cylinder or the inverted conical cylinder. Catalytic reaction device using a rotor.