JPH048993Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a flowing-down type laser light reactor. Specifically, the invention relates to a material flowing down type laser light reactor. This invention relates to a laser photoreactor that performs photochemical reactions.

BACKGROUND ART A conventional laser photoreactor has a configuration as shown in FIG. 2, for example. In FIG. 2, 11 is a reactor main body, 12 is a reactant, 13 is a stirring device, 14 is a circulation pump, and 15 is a laser beam. That is, the reactant 1 is placed in the reactor main body 11.
The reactor main body 11 is equipped with a stirring device 13 and/or a circulation device including a circulation pump 14 in order to proceed with a uniform reaction inside the reactor main body 11. is provided.

Problems to be Solved by the Invention As mentioned above, in the conventional laser light reactor, it is necessary to provide a circulation device including the stirring device 13 and the circulation pump 14, so there is a problem that equipment costs and operating costs are high. There is a point. In addition, in the case of a reactant with a high laser light absorption rate, the light irradiation part becomes localized, and even if the stirring device 13 and the circulation pump 14 are operated, there are many parts that are not irradiated with light, and the reaction as a whole is affected. The problem is that the rate is very low. The present invention aims to solve these problems.

Means for Solving the Problems The reactant was allowed to flow down an inclined surface at a predetermined speed, and the inclined surface was irradiated with a laser beam while flowing down. In other words, the configuration of the present invention consists of a raw material storage tank that is provided at the upper level to store the reactant before laser irradiation and allows the reactant to flow down a fixed amount from an opening at the lower part, and a raw material storage tank that is provided at the lower level to store the reactant before laser irradiation. A product storage tank for recovering and storing the reactant after irradiation, and a plurality of tanks provided with alternating inclination directions between the raw material storage tank and the product storage tank to allow the reactant to naturally flow downward in order. The present invention is characterized by comprising: inclined plates, an irradiation device that irradiates a laser beam toward a reactant flowing down the upper surface of these inclined plates, and an angle adjustment device that adjusts the inclination angle of the inclined plates. .

Function The liquid or slurry reactant before irradiation is stored in the upper raw material storage tank, from which it flows down in fixed amounts. The reactants that flowed down sequentially flow down the upper surfaces of the plurality of inclined plates, and are collected and stored in a product storage tank provided at a lower level. On the other hand, the reactants flowing down the upper surface of each inclined plate are irradiated with laser light, and the photochemical reaction of the reactants proceeds. Further, the inclination angle of each inclined plate is adjusted by an angle adjustment device.

Embodiment FIG. 1 shows an embodiment of the present invention. 1st
In the figure, reference numeral 1 denotes a raw material storage tank provided above, which stores a reactant in the form of a liquid or slurry before irradiation, and allows the reactant to flow down in fixed amounts from an opening 8 at the bottom. 2 is the reactant that has flowed down. Reference numeral 3 denotes an inclined plate, which is provided in multiple stages so that the direction of inclination is alternated, and each upper end is pivoted by a pivot shaft 7 to form a hinge structure so that the angle of inclination can be changed. In addition, each upper surface is a smooth surface with little friction, so that the reactants do not remain on the upper surfaces and flow down naturally. Note that it is desirable that the cross-sectional shape of the upper surface of each inclined plate 3 be in the shape of a gutter so that the reactant does not flow down from the side. 4 is an angle adjustment device, and each inclined plate 3
Each tip is pivotally attached to the middle of each inclined plate 3, and by moving it left and right, each inclined plate 3 can be rotated in the vertical direction around the pivot shaft 7. , Therefore, the inclination angle of each inclined plate 3 can be adjusted individually.
Reference numeral 5 denotes a laser beam irradiated from an irradiation device (not shown) toward the reactant flowing down the upper surface of each inclined plate 3. Reference numeral 6 denotes a product storage tank provided below, which collects and stores the reactant after laser irradiation.

In a raw material flowing down type laser photoreactor configured as shown in FIG. 1, a liquid or slurry reactant is stored in a raw material storage tank 1 before irradiation.
A constant amount of water flows down from the opening 8. This flowing down reactant 2 naturally flows down the upper surface of the plurality of inclined plates 3, and is collected and stored in the product storage tank 6. On the other hand, the reactants flowing down the upper surface of each inclined plate 3 are irradiated with laser light 5, and the photochemical reaction of the reactants progresses. Further, the inclination angle of each inclined plate 3 is adjusted to be optimum by each angle adjusting device 4.

In this way, with the conventional technology, it was possible to irradiate only a part of the reactant with the laser beam, but as is clear from FIG. Since the laser beam 5 is irradiated onto a thin area, the reaction rate is high, and this is particularly suitable for carrying out a photochemical reaction of a reactant having a high laser beam absorption rate. Furthermore, since the directions of inclination of each of the inclined plates 3 are alternated in order, the floor area required for installation is small, and the inclination angle of each inclined plate 3 can be adjusted by each angle adjustment device 4. By changing the flow rate of the reactant flowing down the upper surface of each inclined plate 3, the amount of product produced can be controlled.

Effects of the invention The present invention includes a plurality of inclined plates that allow the reactants to flow down by gravity between the upper raw material storage tank and the lower product storage tank. Since the laser beam is irradiated toward the reactant material flowing down along the natural flow, the laser light is irradiated to the entire thin part of the reactant material flowing down the natural flow, and therefore the reaction rate is reduced. It gets expensive. Furthermore, since the slope directions of the slope plates are alternated in order, the ratio of the site area to the total length of the slope surfaces can be small, and equipment costs can be reduced. Furthermore, each of the inclined plates is provided with an angle adjustment device for adjusting the inclination angle, so that the amount of production can be controlled by changing the flow rate of the reactant. Further, since the reactants naturally flow down along the upper surface of each of the inclined plates, conventional forced stirring devices and forced circulation devices are not required, and equipment costs and operating costs are significantly reduced.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the present invention, and FIG. 2 is a front view showing an example of a conventional technique. 1... Raw material storage tank, 2... Reactant flowing down,
3... Inclined plate, 4... Angle adjustment device, 5... Laser light, 6... Product storage tank, 7... Pivot shaft, 8
……Aperture.

Claims (1)

[Scope of utility model registration request] A raw material storage tank is installed at the upper level to store the reactants before laser irradiation and allows the reactants to flow down in fixed amounts from the opening at the bottom, and a raw material storage tank is installed at the lower level to collect and store the reactants after laser irradiation. a plurality of inclined plates provided between the raw material storage tank and the product storage tank so that the direction of inclination is alternate to allow the reactants to naturally flow downward in order; and these inclined plates. A material-flowing laser photoreactor comprising: an irradiation device that irradiates a laser beam toward a reactant flowing down an upper surface; and an angle adjustment device that adjusts the inclination angle of the inclined plate. .