JPS6133213A - Multi-stage fountain type scrubber - Google Patents

Abstract

PURPOSE:To spray uniformly high-pressure water to the inside and to obtain a multi-stage fountain type scrubber having extremely high cleaning rate by providing a distributing pipe which injects the pressure water to vortex generating vanes and central part. CONSTITUTION:Dust-laden gas forms vertexes in the stage of passing the vortex generating vanes 2 and flows toward the upper part of a wind tunnel 1 when said gas flows into the wind tunnel. The high-pressure water dammed up by respective annular plates 13 is radially injected toward the wall of the wind tunnel through respective stages of ejection ports 15 when the water is fed at the same instant from a water feed pipe 11 to the distributing pipe 12. The vigorous gas-liquid contact with the vortex dusty gas is then executed. The sewage falls in an outside cylinder 22 through each slit 21 and is discharged to the outside through a discharge port 25. The water drops falling onto the vanes 2 enters a bag part 4 for water stopping but are immediately intruded into the vortexes, by which the water drops are fed toward the upper part of the tunnel 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Object of the Invention) The present invention relates to an improvement of a gas cleaning device in which a multilayer jet of water is applied to a dust-containing gas passage.

When spraying multiple layers of water onto a dust-containing gas passage 1) Inject cleaning water from a water pump at a nearly uniform flow rate in each layer. .

If the dust in the air is rationally promoted into fog particles, the water droplets that have been acted on will be immediately discharged through the gas passage, and
There is a demand for a model that meets conditions such as the rcix air bristles above the ventilation ducts and the air blower, and the need to prevent dripping from below the blower blades. Ta.

The present invention has been made for the purpose of obtaining a hot gas scrubber that satisfies the above conditions.

(Structure of the Invention) The scrubber with a multilayer injection nozzle of the present invention has vortex generating blades with a water stopper provided on the plate side arranged radially at the inlet of the wind barrel, and pressurized water is distributed in the center of the wind barrel. The piping is drawn in. 1 Inside the distribution pipe, install several annular plates with through holes whose inner diameters gradually decrease toward the top, and install several injection nozzles directly below each annular plate.・Drainage slits are formed in the wind barrel wall facing the outside of the distribution pipe.

To explain the structure of the present invention in more detail with reference to the drawings, Fig. 1 is a front view of the multi-stage fountain type scrubber of the present invention with the right front half section cut away, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. The figure is a sectional view taken along the line B-B in FIG. 1, and FIG. 4 is an enlarged view of a part of the pressure water piping with the right front half cut away.

In the drawing, / is a wind cylinder 1. A fixed type vortex generator 712 with a water stopper 3 provided on the plate side is arranged radially at its inlet.

A preferred embodiment of the water stopper 3 is to fold the plate side obliquely backward and upward to form a V-shaped bag portion on the surface of the wing body, and to close the gap between each blade, an edge plate S is formed on the inner surface of the wind body. There are some with .

// is a water pipe drawn into the wind cylinder from a water pump (not shown), and its front end is connected to a pressure water distribution pipe /2 which stands upright in the center of the fuselage above the vortex generating blade. Inside the pipe, several stages of annular plates /3 having nine holes /q are installed whose inner diameters are gradually reduced toward the top, and several annular plates /3 are installed at regular intervals directly below each plate, each penetrating the pipe wall. An injection port 15 is provided.

K/ is a number of vertical slits formed by cutting and raising the wind barrel wall at a position facing the outside of the distribution pipe/2, and K λ is arranged outside the wind barrel/2 outside the slits. The bottom part is an outer cylinder with 23 glued to the wind cylinder, and a 0.21I exhaust air is provided at the upper part of the core outer cylinder, and a sewage outlet=3 is provided at the outside of the lower part.

In addition, numeral 31 in the figure indicates a secondary separation cylinder disposed inside the outer cylinder at the outlet of the wind cylinder.

(Operations and Effects) When the gas containing gas flows into the wind barrel, it becomes a vortex when passing through the vortex generation TA2 and flows to the upper part of the wind barrel. At the same time, when water is sent from the water pipe// to the distribution pipe/co, the high-pressure water dammed up by each annular plate/3 forms several layers of water film from the injection port 15 of each stage and is sprayed radially toward the wind trunk wall. However, intense gas-liquid contact occurs with the dust-containing gas rising in the form of a vortex.

In addition, by appropriately setting the inner diameter of the through hole/g of the annular plate/3 of each stage, the amount of water, water pressure, etc. in each layer can be set equally or at a value depending on the purpose. .

The sewage containing dust and blown onto the wind cylinder/inner wall descends inside the outer cylinder 22 through the slits 1 and 2, and is discharged to the outside through the outlet 5.

In addition, the water droplets that fall onto the vortex generating blade 2 enter the bag part of the water stopper, but since the upper part of the blade axis is under low pressure, it is immediately sucked into the low pressure part - and then mixed into the vortex, and the water droplets enter the bag part of the water stopper. Since the rain is sent upwards, precipitation cannot fall below the wings.

(effect).

The scrubber of the present invention has no moving mechanism inside the device and waste water is quickly discharged outside the device, so it can be used for a long period of time while keeping the inside of the device always clean. Since strong gas-liquid contact occurs with the gas containing gas that is evenly distributed throughout the air and passes through the wind barrel in the form of a vortex, the purification rate is extremely high.

[Brief explanation of the drawing]

Fig. 1 is a front view of the multi-stage fountain type scrubber of the present invention with the right front half section cut away, Fig. 2 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 3 is a cross-sectional view taken along line B-E in Fig. 1. , Figure 4 is an enlarged front view of a portion of the pressure water piping with the right front half section cut away. l, Wind body Uni vortex generating blade J: Water stop
/2 Bifurcated pipe 13: Annular plate /4! :Through hole 13:Injection hole 2/Nisrit other name 2nd vA >111!2

Claims (2)

[Claims] (1) At the inlet of the wind cylinder, vortex generating blades with a water stopper on the blade side are arranged radially, a pressure water distribution pipe is drawn into the center of the wind cylinder, and the inner diameter is sequentially installed inside the distribution pipe. Several stages of annular plates with through holes reduced in size are installed, several injection nozzles are installed directly below each annular plate, and drainage slits are installed in the wind barrel wall facing the outside of the distribution pipe. A multi-stage fountain type scrubber with a (2) The multi-stage fountain type scrubber according to claim 1, wherein each blade side of the vortex generating blade is folded upward to form a V-shaped water stop on the upper surface of the blade body.