JPS583032Y2 - Horizontal continuous fluidized dryer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a horizontal continuous fluidized fluid drying apparatus for drying blast furnace granulated water and recycling it into fertilizer and other resources.

A rotary dryer was often used to dry granulated blast furnace granules during the Congong Song Dynasty, but it was difficult to separate fine powder in this type of dryer, and the temperature of the crushed and dried product was 90 to 10 degrees.
The temperature is usually as high as 0°C, and there is a drawback that a considerable amount of equipment is required for classification, cooling, grinding, etc.

This invention was devised in view of the above, and its purpose is to dry granulated blast furnace water to make fertilizer.
A fluidized drying chamber was installed to separate fine powder, and a processing chamber connected to this was used to crush lumps larger than a certain particle size.At the same time, the needle-like crystals produced when blast furnace slag was pulverized were crushed into products. The purpose is to avoid getting stung when sowing fertilizer by hand.

The present invention will be described in detail below with reference to the illustrated embodiment. Reference numeral 1 denotes a horizontal continuous flow drying chamber, in which granulated blast furnace particles supplied from a feeder 10 onto a perforated plate 11 are passed through a blower 12 from below the perforated plate 11. Fluidized drying is carried out by hot air jetted through the pipe.

Reference numeral 2 denotes a processing chamber connected to the outlet side of the drying chamber 1, in which several air jet nozzles 3 are mounted upwardly at appropriate intervals in the center of the lower part.

Reference numeral 4 denotes a cylindrical accelerator tube provided above the air jet nozzle 3 at appropriate intervals, and a plurality of accelerator tubes may be installed as required.

5 is a collision plate attached to the upper part of the acceleration tube 4; 6 is a water jet nozzle opened in the air jet nozzle 3; 1 is a drying chamber 1;
8 is an air seal adjustment plate 9 is a discharge chute provided in the processing chamber 2, 13 is a hot air blowing chamber, 14 is a stirrer, 15 is a cooling blower, and 16 is a collision plate. 5 is a liner material provided, 11 is an exhaust duct connected to the upper part of the drying chamber 1, 18 is a dust collector, and 19 is an exhaust fan.

The present invention has the above-mentioned configuration. The granulated blast furnace particles of 8 to 14% W and B supplied from the feeder 10 are fed to the perforated plate 11.
At the top, fluidized drying is performed by hot air sent from the hot air blowing chamber 13 and ejected from the nozzle holes of the perforated plate 11.

At this time, the fluidity of the particles with a high water content is promoted by the stirrer 14.

The hot air that has been used for drying passes through a duct 17 along with fine powder, and after separating the fine powder in a dust collector 18, it is discharged from an exhaust fan 19.

The granulated blast furnace particles, which have finished drying in the drying chamber 1 and have a temperature of about 60 to 70°C, are controlled by the layer thickness adjustment partition plate 7 and the air seal adjustment plate 8 so that they do not contain as much air as possible from the drying chamber 1. and flows into the processing chamber 2.

On the other hand, the cooling air sucked from the duct via the damper is ejected upward from the nozzle 3 into the processing chamber 2, and together with the sucked blast furnace granules, passes through the acceleration tube 4 and collides with the shock plate 5 at high speed. The sharp parts of the needle-shaped crystals are removed by crushing, so that they do not stick to your hands.

Then, the fine powder is accompanied by the cooling air and ascends through the processing chamber 2 and flows into the drying chamber 1, a portion of which falls into the fluidized bed, and a portion of which passes through the exhaust duct 17 and is separated and collected by the dust collector 18. .

In addition, water is ejected into this cooling air from a water jet nozzle 6, atomized by a high-speed air flow, and sent to the processing chamber 2 and ejected into the accelerator tube 4 together with the sucked blast furnace granulated particles. Cooling with sensible heat.

The crushed particles are taken out via a discharge chute 9.

As described above, the present invention has a processing chamber connected to the outlet side of a horizontal continuous flow drying chamber, an air jet nozzle facing upward in the lower part of the processing chamber, an accelerator tube in the upper part of the nozzle, and Since the collision plate is placed above the accelerating tube, a series of operations such as drying the blast furnace granulated particles, separating fine powder, cooling the dried particles, and grinding can be performed in a single device.

[Brief explanation of drawings]

The drawing is a longitudinal sectional view showing an embodiment of the present invention. 1...Horizontal continuous flow drying chamber, 2...Processing chamber, 3...Air jet nozzle, 4...
Accelerator tube, 5... Collision plate, 6... Water jet nozzle, 7... Partition plate for layer thickness adjustment, 8...
・Adjustment plate for air seal.

Claims (1)

[Scope of utility model registration request] A hot air blowing chamber is provided through a perforated plate at the bottom of a model continuous flow drying chamber containing granulated blast furnace particles, and a dust collector is connected to the upper part of the drying chamber through an exhaust duct, and a dust collector is connected to the outlet side of the drying chamber. The chambers are arranged in series, an air jet nozzle is provided upward in the lower part of the processing chamber, and an acceleration pipe is provided above the nozzle,
A horizontal continuous flow drying apparatus characterized in that a collision plate is disposed above the accelerating tube, a discharge chute communicating with the outside of the processing chamber is attached to the upper part of the accelerating tube, and a water jet nozzle is provided in the nozzle.