JPH0242524B2 - - Google Patents

Description

Detailed Description of the Invention [Industrial Application Field] The present invention is applicable to the use of a packing material used in a device for desulfurizing exhaust gas, denitrification equipment, etc., which adsorbs harmful substances in gas, or desorbs adsorbed substances from the filling material. The present invention relates to a cross-flow moving bed device that can make the flow of the moving bed uniform.

[Conventional technology]

As shown in Fig. 2, a conventional cross-flow moving floor device has two louvers at the front and back that are parallel to each other, namely an inlet louver 1 and an outlet louver 2, and these louvers extend downward from their lower ends so that the distance between them narrows. A lower area comprising two front and rear lower walls 3 and a discharger 4 provided at a discharge port formed at the lower ends of these lower walls, and further divided by the lower wall 3 and two side walls. A rectifying cone 5 having an inverted V-shaped cross section was provided over the entire length in the lateral direction.

[Problem that the invention seeks to solve]

In such a conventional device, the flow rate of the moving bed near the two louvers 1 and 2 is slower than in other parts, and the flow pattern of the moving bed is uniform as shown at 10 in Fig. 2. In addition, there were many cases in which the filler remained in the hatched areas in FIG. 2, such as the boundary between the louver and the lower wall 3 and the upper part of the rectifying cone 5. In the past, attempts have been made to improve the shape of the louvers and rectifying cones in order to solve these problems, but the quantitative effects have not been sufficient.

[Means for solving problems]

In the cross-flow moving floor device according to the present invention, the lower walls extending below the two front and rear louvers are vertical wall surfaces, and an inner wall is provided that extends from approximately the center below the two louvers toward the lower ends of the front and rear vertical wall surfaces. A W-shaped hopper is formed, which eliminates the rectifying cone and the hatched portion shown in FIG. 2, resulting in a simple structure.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference mainly to FIG.

〔Example〕

In FIG. 1, 1 is an entrance louver and 2 is an exit louver. Below these louvers, there is a vertical wall surface 6 that extends vertically downward from the louvers.
6' are connected to each other. An inner wall 7 is provided that extends from approximately the center below the two louvers toward the lower ends of the vertical wall surfaces 6, 6', thereby forming a W-shaped hopper 12. Two discharge ports 9 and 9' are formed at the front and rear by the vertical wall end and the inner wall end. These discharge ports 9,
Roll feeders 8, 8' are provided at 9'. In FIG. 1, the upper input port and the left and right side walls are not shown.

The roll feeders 8, 8' in the present invention may be driven by a single drive device to produce the same amount of discharge at the same rotational speed, or each roll feeder may be driven by a separate drive device to achieve a different discharge amount. You may also do so. And their discharge direction is the third
As shown in the figure, the discharge is appropriately set to either the lower outer side of the apparatus or the lower inner side of the apparatus. In addition, in FIG. 3, 11 is an adjustment gate.

[Effect]

In such a device, when the front and rear roll feeders 8, 8' are rotated at a constant speed by the same drive device and the same amount of filling is discharged from the discharge ports, the discharge ports 9, 9' are connected to the louvers 1, 2. and vertical wall surface 6,
6', the wall friction of the packing on the louver and vertical wall section is minimized, promoting discharge of the filling and minimizing stagnation, so the flow pattern of the filling is as shown in 10. The piston flow becomes almost uniform and the desired piston flow is obtained. At this time, there is no need to provide a rectifying cone, and retention at the top of the inner wall can be almost completely prevented.

Moreover, if the roll feeders 8 and 8' are configured to have separate drive devices so that the amount of discharge from the front side (inlet side) discharge port is larger than that from the other discharge ports,
A flow pattern as shown at 10' in Figure 1 occurs,
Dust clogging caused by stagnation, which is conventionally seen in the inlet louver 1, can be prevented.

As an application of the present invention, a partition wall extending upward from the top of the inner wall is provided inside the device without providing a louver, as shown in FIG. This can also be applied as a mixer that mixes in a desired ratio by adjusting the rotational speed of the front and rear dischargers.

〔Effect of the invention〕

According to the present invention as described above, the flow of the moving bed formed by the packing inside the device can be set to a uniform or arbitrary flow pattern without stagnation, and there is no need to provide a rectifying cone in the device. Therefore, it is possible to obtain a cross-flow moving bed apparatus which is very useful for this industry because it has an extremely simple structure, such as a compact apparatus, and can be expected to have remarkable effects.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram schematically showing the apparatus of the present invention in cross section. FIG. 2 is an explanatory diagram schematically showing a conventional device in cross section. FIG. 3 is an explanatory diagram showing an aspect of the ejector in the apparatus of the present invention. FIG. 4 is an explanatory diagram when the present invention is applied to a mixer. 1...Entrance louver, 2...Exit louver, 3...
lower wall, 4...discharge machine, 5...straightening cone, 6,
6'...Vertical wall surface, 7...Inner wall, 8, 8'...Roll feeder, 9,9'...Discharge port, 10,1
0'...flow pattern, 11...adjustment gate, 1
2...Hopper.

Claims (1)

[Claims] 1. Two front and rear louvers arranged parallel to each other, a vertical wall surface extending downward from the lower end of the louver, and a vertical wall surface extending from approximately the center below the two louvers toward the lower end of the front and rear vertical wall surfaces. A cross-flow moving bed apparatus comprising a W-shaped hopper formed by an inner wall, an end of the vertical wall surface, and an end of the inner wall, and two roll feeders provided at the discharge port of the W-shaped hopper. 2. The apparatus according to claim 1, wherein the two roll feeders are rotated by one drive machine. 3. The apparatus according to claim 1, wherein the two roll feeders are rotary dischargers rotated by separate drives. 4. The apparatus according to claim 2 or 3, wherein the roll feeder is rotated in a direction in which the material filled in the apparatus is discharged to either the lower outer side of the apparatus or the lower inner side of the apparatus. .