JPH0419289Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a fluidized bed device such as a fluidized bed boiler or a fluidized bed reactor.

[Conventional technology]

A conventional device will be explained with reference to FIGS. 4 and 5.

A space surrounded by a wall 1 is divided into two left and right by a partition wall 2, and dispersion plates 3 and 5 having a plurality of ventilation holes 4 and 6 are arranged below each of the two divided spaces.
Air storage chambers 7 and 8 are formed below the distribution plates 3 and 5 and are surrounded by the wall 1, the distribution plates 3 and 5, and the bottom plate 13. Rooms 7 and 8
Ducts 11 and 12 that communicate with the storage chambers 7 and 8 and supply air to the storage chambers 7 and 8 are connected. A fluid material is supplied to the upper part of the dispersion plates 3 and 5, and the dispersion plates 3 and 5
The fluidized material is fluidized by the air supplied through the ventilation holes 4 and 6, forming fluidized beds 9 and 10.

In addition, when fluidized bed combustion is performed like a fluidized bed boiler, the fluidized material is a solid content such as lime or coal.

Compressed air is supplied from the respective ducts 11, 12 to the respective storage chambers 7, 8, and is injected into the fluidized material through the ventilation holes 4, 6 of the respective distribution plates 3, 5 to form the fluidized beds 9, 10. and burns the coal in the fluidized material.

[Problem that the invention attempts to solve]

In order to adjust the combustion temperature of the fluidized beds 9 and 10 in each space, or to adjust the reaction heat when used as a reactor, it is necessary to adjust the height of the fluidized bed by adjusting the amount of fluidized material held in each space. In order to perform this adjustment, conventional equipment cuts out a portion of the fluid material from one space to the outside and supplies it to the other space using a transfer device, etc. Adjustment handling becomes complicated,
Also, because the heat is taken out to the outside, problems such as heat loss occur.

In order to solve this problem, a countermeasure such as providing communication holes in the partition wall 2 can be considered, but simply providing communication holes will average out the heights of the fluidized beds 9 and 10, but It is difficult to adjust the height to a predetermined height.

Therefore, there is a device that can transfer the fluid from one space to the other without cutting out the fluid to the outside, adjust the amount of fluid in each space, and adjust the combustion temperature or reaction heat. is necessary.

[Means for solving problems]

In the fluidized bed apparatus according to the present invention, a space in which a fluidized bed is formed is divided into a plurality of parts by vertical partition walls, and communication holes are provided in the partition walls below the height of the fluidized material stored in the spaces to form the fluidized bed. A container is installed on both sides of the partition wall so that the fluidized beds on both sides of the partition wall communicate with each other, and a part of the partition wall including the communication hole is used to form an upwardly opening chamber, and gas is introduced into the upwardly opening chamber from below. It is equipped with a supply device.

[Effect]

Under normal conditions, no gas is supplied into the container, and the fluidized material is stationary and packed inside the container. When gas is supplied from the supply device, the fluidized material in the container is fluidized. When one side of the container is strongly fluidized and the other side is fluidized weakly, the fluid material moves from the weaker side to the stronger side through the communication holes.

〔Example〕

FIGS. 1 and 2 show an apparatus according to an embodiment of the present invention.

The space surrounded by wall 1 is divided into left and right by partition wall 2,
Dispersion plates 3 and 5 having a plurality of ventilation holes 4 and 6 are arranged below each of the two divided spaces. Below the distribution plates 3 and 5 are the wall 1, the distribution plates 3 and 5, and the bottom plate 1.
Air storage chambers 7 and 8 surrounded by 3 are formed in the wall 1 below the dispersion plates 3 and 5, communicating with the air storage chambers 7 and 8, respectively, and supplying air to the air storage chambers 7 and 8. Duct 1
1 and 12 are connected. A fluidized material is supplied to the upper portions of the distribution plates 3 and 5, and the fluidized material is fluidized by air supplied through the ventilation holes 4 and 6 of the distribution plates 3 and 5, forming fluidized beds 9 and 10. are doing.

A communication hole 14 is provided in a portion of the partition wall 2 located below the height of the fluidized beds 9, 10, and the partition wall 2 is arranged so that a portion of the partition wall 2 including the communication hole 14 is used to form upwardly opening chambers 15, 16. Containers 17 and 18 are attached to both sides. At the bottom of the containers 17 and 18 there is a chamber 1.
Supply pipe 19, for supplying air into 5, 16;
20 are connected.

The number of communication holes 14 may be one or more depending on the size of the device, and the number of supply pipes 19, 20 attached to one of the chambers 15, 16 may be one or more.

When the temperature condition etc. is predetermined and cannot be adjusted, compressed air is sent to the storage chambers 7 and 8, and the compressed air is jetted into the fluid material through the ventilation holes 4 and 6 to flow the fluid material. The fluidized beds 9 and 10 are formed and normal operation is performed. At this time, the fluidized material is not fluidized in the chambers 15 and 16 surrounded by the containers 17 and 18, but is in a clogged state.

When adjustment is required and fluid material is transferred,
Compressed air is supplied into the chambers 15, 16 from the supply pipes 19, 20, and the fluidized material in the chambers 15, 16 is fluidized. By changing the pressure of the compressed air supplied into the chambers 15 and 16 for each chamber 15 and 16, the strength of fluidization changes, and the fluidized material passes through the communication hole 14, for example, from the chamber 15 to the chamber 16. Moving. The amount of movement and the direction of movement can be easily adjusted by adjusting the pressure of compressed air supplied to the respective chambers 15 and 16.

Therefore, in this device, it is possible to move the fluidized material between the fluidized beds 9 and 10 without taking it out to the outside.
Furthermore, the amount of movement can be easily adjusted by adjusting the pressure of the compressed air supplied to the chambers 15 and 16, and the amount of fluidized material held in each space can be adjusted.
A temperature or reaction adjustment of 0 is also possible.

FIG. 3 shows another embodiment of the present invention, in which the communication hole 14 and container 1 of the previous embodiment are
The positions of 7 and 18 have been changed.

That is, in this example, the communication hole 14 is connected to the dispersion plate 3,
Containers 17 and 18 are provided on the partition wall 2 at a position lower than 5.
The upper ends of the dispersion plates 3 and 5 are installed so that they do not protrude above the dispersion plates 3 and 5.

This embodiment also provides the same effects as the previous one, so a detailed explanation will be omitted.

[Effect of idea]

In the fluidized bed apparatus of the present invention, it is possible to move the fluidized material between the spaces partitioned by partition walls without taking it out, and the amount of movement can be easily adjusted by adjusting the pressure of the gas supplied to the chamber. Since the amount of fluidized material held in each space can be adjusted, it is also possible to adjust the temperature or reaction of the fluidized bed.

[Brief explanation of the drawing]

Fig. 1 is a front cross-sectional view of one embodiment of the present invention;
The figures are a view taken in the direction of the − arrow in FIG. 1, FIG. 3 is a front sectional view of another embodiment, FIG. 4 is a front sectional view of a conventional device, and FIG. 5 is a view taken in the direction of the −V arrow in FIG. 4. It is a diagram. 1... Wall, 2... Partition wall, 3, 5... Dispersion plate,
4,6...Vent hole, 9,10...Fluidized bed, 14...
...Communication hole, 15, 16... Chamber, 17, 18... Container, 19, 20... Supply pipe.

Claims (1)

[Scope of utility model registration request] In a fluidized bed apparatus in which a space in which a fluidized bed is formed is divided into a plurality of parts by vertical partition walls, the partition walls below the height of the fluidized material stored in the space and forming the fluidized bed on both sides A communication hole communicating with the floor is provided, containers are attached to both sides of the part of the partition wall including the communication hole to form an upwardly opening chamber, and a supply device is provided for supplying gas into the chamber from below. Characteristic fluidized bed equipment.