JP2009028568A - Device of removing high temperature dust - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a device of removing high temperature dust, which is simple in structure and relatively easy in maintenance. <P>SOLUTION: The device of removing high temperature dust is provided with a sealed box-like removing body 3 having a supply port 1 of waste gas at the upper part of a side wall and a discharge port 2 of waste gas at the ceiling wall respectively; a partition member 4 that partitions an upper space from a given position inside the removing body into a space positioning the supply port and a space positioning the discharge port and that has a vertical face at a portion facing the supply port; a collection member 5 roughly horizontally extended from a right below position of the supply port to a position appropriately passing over the partition member, disposed at a position lower than the lower end of the partition member in the removing body 3 by a given length, and collecting high temperature dust impinging on the partition member and falling; water 6 charged in the removing body with an upper level set lower than the upper face of the collection member; and a water movement suppressing member 7 suppressing waving of water or rising by becoming droplets by being set lower than the upper level of the water and horizontally and extendedly set inside the removing body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for removing high-temperature dust, which is generated in a combustion furnace, a boiler, or the like and containing high-temperature dust with high ignitability and heat capacity, before cleaning with a bag filter type dust collector.

When waste gas containing high-temperature dust with high ignitability and heat capacity generated in a combustion furnace, boiler, etc. is guided to a dust collector and cleaned, high-temperature dust with high ignitability and heat capacity such as sparks in the waste gas is a bug filter type Frequently, it was sent into the dust collector to damage the bug filter or cause a fire accident inside the dust collector.
Therefore, in order to solve this problem, a rotary filter in which a plurality of filter nets are radially stretched around a rotating shaft is provided in a casing having an inlet portion and an outlet portion for waste gas. There has been proposed a device for removing sparks in flue gas with the lower end facing a water tank charged with water.

Japanese Utility Model Publication No. 52-34435

However, the conventional spark removal device configured as described above has problems such as complicated structure and complicated maintenance.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a high-temperature dust removing device having a simple structure and relatively easy maintenance.

In order to achieve the above object, the high-temperature dust removing device according to the present invention is a device that removes high-temperature dust before cleaning waste gas containing high-temperature dust with high ignitability and heat capacity with a bag filter type dust collector. And a removal body having a waste gas supply port in the upper part of the side wall and a waste gas discharge port in the ceiling wall, and a space above the required position inside the removal body. Partitioning into a space in which the supply port is located and a space in which the discharge port is located, and a partition member having a vertical surface at a location facing the supply port, and the partition member from the position directly below the supply port as appropriate. A collecting member that extends substantially horizontally to a predetermined position and is disposed at a position lower than a lower end of the partition member in the removal main body, and collects high temperature dust that collides with the partition member and falls. The water placed in the removal body with the upper surface level lower than the upper surface of the collecting member, and the water placed below the upper surface level of the water in a horizontal state and stretched in the removal body And a water motion inhibiting member that inhibits the water from rising and becoming a water droplet.

  In this way, waste gas containing high-temperature dust with large ignitability and heat capacity generated in a combustion furnace, boiler, etc. is removed from the waste gas supply port by the suction action of the dust collector blower. When the gas is sucked into and introduced into the waste gas, the waste gas collides with the vertical surface of the partition member, flows downward along the partition member, passes between the lower end of the partition member and the water surface, and then rises to exhaust the waste gas. It is discharged from the outlet and introduced into the dust collector. When the waste gas collides with the partition member, a part of the high-temperature dust therein is decelerated and falls onto the collection member, while the waste gas flows downward by the partition member, thereby Most of the high-temperature dust that has ridden on the waste gas without falling into the water generates a downward inertial force and enters the water to be removed.

As is apparent from the above description, the present invention is an apparatus that removes high-temperature dust containing high-temperature dust with high ignitability and heat capacity before it is cleaned by a bag filter type dust collector. And a removal main body provided with a waste gas supply port at the upper part of the side wall and a waste gas discharge port at the ceiling wall, and a space above the required position inside the removal main body. A partition member that divides the space into which the discharge port is located and has a vertical surface at a location facing the supply port, and a substantially horizontal shape from a position directly below the supply port to a position past the partition member as appropriate. And a collecting member that is disposed at a position lower than the lower end of the partition member in the removal main body by a required length and collects high temperature dust that has collided with the partition member and dropped, and the upper surface level is collected. Part Lower than the upper surface of the water, and the water charged in the removal main body, and lower than the upper surface level of the water and in a horizontal state, the water is stretched in the removal main body and the water waves or becomes water droplets. Since it has a water motion restraining member that restrains it from rising, it has a simpler structure than that of a conventional device of this type, and it is very easy to maintain and manage the waste gas. Excellent practical effects such as being able to accurately remove high-temperature dust.

Hereinafter, an embodiment of a high-temperature dust removing apparatus to which the present invention is applied will be described in detail with reference to FIG. As shown in the figure, this high-temperature dust removing device has a sealed box shape, and a removal main body 3 provided with a waste gas supply port 1 at the top of the side wall and a waste gas discharge port 2 at the ceiling wall. And an upper space having a required length higher than a lower end of a collecting member, which will be described later, which is a required position in the removal main body 3, is divided into a space where the supply port 1 is located and a space where the discharge port 2 is located. And the partition plate 4 as a partition member which has a vertical surface in the location facing the supply port 1, and the removal main body extending substantially horizontally from a position directly below the supply port 1 to a position past the partition plate 4 as appropriate. 3 is arranged at a position lower than the lower end of the partition plate 4 in the required length, and a horizontal plate 5 as a collecting member that collects high temperature dust that collides with the partition plate 4 and falls, and an upper surface level. The removal is made lower than the upper surface of the horizontal plate 5. The water 6 charged in the body 3 and the water 6 lower than the upper surface level of the water 6 and in a horizontal state are stretched in the removal main body 3 so that the water 6 rises as waves or water droplets. And a punching metal 7 having a porous structure as a water motion restraining member that restrains the above. The supply port 1 is connected to a combustion furnace or a boiler, and the discharge port 2 is connected to a dust collector.

  In this configuration, waste gas containing high-temperature dust with high ignitability and heat capacity generated in a combustion furnace, boiler, etc. is sucked into the removal main body 3 from the supply port 1 due to the suction action of the blower of the dust collector. When introduced, the waste gas collides with the partition plate 4, then flows downward along the partition plate 4, passes between the partition plate 4 and the water surface, and then rises and is discharged from the discharge port 2. To be introduced. When the waste gas collides with the partition plate 4, a part of the high-temperature dust therein is decelerated and falls onto the horizontal plate 5, while the waste gas flows downward along the partition plate 4, thereby Most of the high-temperature dust that has fallen on the waste gas without falling on the plate 5 generates a downward inertial force, and enters the water 6 to be removed. Then, the punching metal 7 prevents the water 6 from being waved or rising as water droplets due to the pressure of the waste gas.

It is a schematic diagram which shows one Example of the waste gas processing equipment which employ | adopted this invention.

Explanation of symbols

3 Removal body 4 Partition plate 5 Horizontal plate 6 Water 7 Punching metal 6

Claims (3)

A device that removes high-temperature dust before it is cleaned by a bag filter type dust collector, including high-temperature dust with high ignitability and heat capacity,
A removal main body having a sealed box shape, provided with a waste gas supply port at the top of the side wall and a waste gas discharge port on the ceiling wall,
A partition member that divides the space above the required position inside the removal main body into a space where the supply port is located and a space where the discharge port is located and which has a vertical surface at a position facing the supply port;
It extends substantially horizontally from a position directly below the supply port to a position past the partition member as appropriate, and is disposed at a required length lower than the lower end of the partition member in the removal body, and collides with the partition member. A collecting member for collecting the dropped high temperature dust;
The upper surface level is made lower than the upper surface of the collecting member and the water charged in the removal body; and
A water motion deterring member that is lower than the upper surface level of the water and in a horizontal state and is stretched in the removing main body and deters the water from rising and falling into waves or water droplets;
An apparatus for removing high-temperature dust. 2. The high-temperature dust removing device according to claim 1, wherein the partition member and / or the collecting member is formed of a plate-like body. The high-temperature dust removing device according to claim 1 or 2, wherein the water movement inhibiting member is made of a punching metal.