JPH031064Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an improvement of a device for removing dust adhering to a moving particle holding plate of a moving bed used in solid-gas separation or solid-gas catalytic reaction.

[Conventional technology]

Conventionally, louvers, wire mesh, perforated plates, etc. have been used as particle holding plates in cross-flow type moving beds. However, especially when a wire mesh or perforated plate is used on the rear side of the moving bed where the gas flows, clogging is unavoidable because the moving particles are in direct contact with the wire mesh or perforated plate and also because of the gas pressure caused by the gas flow. Furthermore, when using a louver, clogging is unlikely to occur, but if a phenomenon occurs where particles spill on the rear surface due to the gas flow, and the gas flow is concentrated at one location on the moving bed,
A phenomenon in which particles are blown away is observed. Considering these phenomena, as shown in Fig. 4, the louver 1
The moving particles 2 are held between a and 1b, and the wire mesh 3 is attached directly to the louver 1b on the rear surface of the gas flow.
A conceivable structure is to reduce the clogging of the wire mesh 3 and the blow-through of particles by creating a structure in which the moving particles 2 do not come into direct contact with each other. However, the rear surface of the gas flow cannot avoid clogging due to the gas pressure of the gas flow or the blowing of powder in the particles, and over a long period of use, the wire mesh 3 gradually becomes clogged, which may impede operation.

In order to eliminate the above-mentioned drawbacks, the inventors of the present invention installed a hammering machine 4 in close proximity to the wire mesh 3, as shown in FIG. 6 fixed on a wire mesh 3 was developed, and an application for utility model registration was filed as Utility Model No. 145428/1983. Note that 7 is a wire mesh fixed frame.

[Problem that the invention attempts to solve]

If the above-mentioned device of Utility Application No. 145428/1988 is used,
Although it is possible to prevent clogging of the particle holding plate on the rear side of the gas flow, the dust in the inflowing gas also adheres to the louver 1a on the front side of the gas flow, and the adhered dust will grow over a long period of use, so please brush it off. There is a need. This phenomenon is shown in Fig. 4. Gas flow A passes between the louvers 1a and 1a on the front of the gas flow and flows between the moving particles 2, but a part of the gas flow A becomes a vortex, and It is considered that dust adheres and accumulates on the lower surface of the louver 1a to form the adhered dust layer 8. By continuing the operation for a long period of time, the adhered dust layer grows and eventually blocks the entire tip of the louvers 1a, 1a, . . . in front of the gas flow.

In order to solve this problem, it may be possible to install a device equivalent to the clogging removal device shown in Fig. 5 on the louver 1a in front of the gas flow to remove the adhering dust. Since two clogging removal devices are installed, there is a problem in that the cost increases.

The present invention was developed in view of the above points, and by transmitting the excitation force of hammering at the rear side of the gas flow to the front side, without installing a clogging removal device at the front side of the gas flow. It is an object of the present invention to provide an attached dust removing device capable of removing attached dust.

[Means for solving problems]

The apparatus for removing adhering dust on a moving particle holding plate of a moving layer according to the present invention will be explained using the numbers shown in FIGS. 1 to 3. Moving particles 2 are held between louvers 1a and 1b, and gas In the moving layer in which the gas flows perpendicularly to the louver group, a wire mesh 3 is fixed to the rear surface of the louver 1b at the rear surface of the gas flow so as to be in contact with the louver, and a hammering machine 4 is installed in close proximity to the wire mesh 3.
The hammer seat 6 on which the hammer head 5 of the hammer driver 4 hits is fixed to the wire mesh 3, and the louver 1a on the front side of the gas flow and the gas It is characterized in that it is connected to the louver 1b on the rear surface by a connecting rod 10.

[Effect]

The vibration of the hammered louver 1b on the rear side of the gas flow is transmitted to the louver 1a on the front side of the gas flow via the connecting rod 10, and the adhering dust layer 8 on the lower surface of the louver 1a falls into the moving layer, and together with the moving particles 2. Moved and ejected.

〔Example〕

Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 3. 1 to 3 show an embodiment of the present invention in which the present invention is applied to a dry moving bed reactor for incinerator exhaust gas. Moving particles 2 made of quicklime particles are held between the louvers 1 and 1b,
A moving layer is formed by flowing incinerator exhaust gas containing HCl and SOx perpendicularly or almost perpendicularly to the louver group. A wire mesh 3 is fixed to the rear surface of the louver 1b on the rear surface of the gas flow so as to be in contact with the louver 1b. A hammering machine 4 is provided close to the wire mesh 3, and a hammer seat 6 on which a hammer head 5 of the hammering machine 4 is struck is attached to a wire mesh fixing frame 7 fixed to the wire mesh 3. As the wire mesh 3, in addition to a normal wire mesh, a so-called tie-rod wire mesh having a long slot-like mesh made of a spring steel wire or a hard steel round wire such as a piano wire and a metal flat wire may be used. , is preferable because a sufficient hammering effect can be obtained.

Further, the louver 1b on the rear side of the gas flow and the louver 1a on the front side of the gas flow are connected by a connecting rod 10.
11 is a mounting seat for fixing to the louver 1a on the front side of the gas flow, and 12 is the louver 1b on the rear side of the gas flow.
Since the connecting rod 10 needs to be adjusted to the gap size between the louvers 1a and 1b, it is connected by screws. 13 is a rotation axis.

The mounting seats 11 and 12 are directly attached to the louver 1a,
Alternatively, as shown in FIG. 3 as an example, the mounting seat 11 of the front louver, the front fixing frame 16, and the louver 1a may be fixed using the fixing member 14, and the fixing member 15 may be used to fix the louver 1a. The mounting seat 12 of the rear louver, the wire mesh 3, and the louver 1b can be configured to be fixed.

Since the device of the present invention is configured as described above, when the hammer seat 6 is hammered by the hammer head 5, the vibration is transmitted through the wire mesh fixing frame 7, the wire mesh 3, the louver 1b, and the connecting rod 10. The dust layer 8 is transmitted to the front louver 1a, and the attached dust layer 8 attached and deposited on the lower surface of the louver 1a can be dropped into the moving layer and discharged together with the moving particles 2 to the outside of the system.

In the above embodiments, the case where quicklime particles are used as moving particles has been described, but the present invention is not limited to this, and can of course be applied to dust collection particles using sand, gravel, ceramic, ore, etc.

[Effect of idea]

As explained above, according to the present invention, even if a dry moving bed reactor or a dust collector is installed at a location where the dust concentration of the inlet gas is high, dust will not adhere or
This has the effect of easily resolving dust troubles such as a decrease in reaction efficiency or dust collection efficiency due to deposition, an increase in pressure loss, and an inability to operate due to blockage.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of the device for removing adhering dust from the moving particle holding plate of the moving bed of the present invention, Fig. 2 is a right side view of the device, and Fig. 3 shows details around the connecting rod in Fig. 1. An enlarged view showing an example, FIG. 4 is an explanatory view showing an example of the surroundings of the moving layer, and FIG. 5 shows a structure for removing clogging of the moving particle holding plate of the moving layer, which the present inventors developed and is currently applying for utility model registration. It is an explanatory diagram. 1a... Louver on the front side of the gas flow, 1b... Louver on the back side of the gas flow, 2... Moving particles, 3...
Wire mesh, 4... Hammering machine, 5... Hammer head, 6... Hammer seat, 7... Wire mesh fixing frame, 8... Adhesive dust layer, 1
0... Connecting rod, 11, 12... Mounting seat, 13...
Rotating shaft, 14, 15...fixing member, 16...fixing frame.

Claims (1)

[Scope of utility model registration request] In a moving layer in which moving particles are held between the louvers and gas is made to flow perpendicularly to the louver group, a wire mesh is fixed to the rear surface of the louver at the rear surface of the gas flow so as to be in contact with the louver. A hammering machine is installed, and the hammering seat on which the hammering head of the hammering machine hits is fixed to a wire mesh, and the gas flow is connected to a louver in front of the gas flow so that the hammering excitation force on the rear side is transmitted to the front side. A device for removing dust attached to a moving particle holding plate of a moving layer, characterized in that the moving particle holding plate of the moving layer is connected to a louver on the rear surface by a connecting rod.