JPS59122890A - Powdered material cooling device - Google Patents

Abstract

PURPOSE:To enable a carriage truck to be displaced horizontally and vertically by a method wherein in the case of the cooling device for a high temperature burned mass, the carriage truck is displaced horizontally by thrusting two follower members alternately through a cam rotatable with the rotation of the shaft of the carriage and is displaced vertically through a guide member. CONSTITUTION:When the shaft 27 of the carriage is rotated, the cam 28 is rotated to thrust the follower members 29 reciprocally in the directions designated by the arrows 36 and 37 and in this case, the guide member 25 supporting the carriage 20 moves on a wheel 26 so that the carriage 20 displaces vertically along the inclined surface of the guide member 25 and movable grids 24 take reciprocating and inclined motions along the upper surfaces of stationary grids 23. Thus a drive mechanism for the carriage 20 is simplified and only the shaft of the carriage passes through a ventilating chamber so that the inspection and repair in the ventilating chamber are facilitated. Further, since a partition wall of the chamber has only a round hole for allowing the rotation of the shaft of the carriage truck, it is possible to improve the airtightness of the ventilating chamber and to increase the cooling efficiency of the cooling device.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cooling device for powder and granular materials that cools high-temperature powder and granular materials such as baked ingots while transferring them. This invention relates to improvement of a drive unit for a moving cart.

Powder and granular materials such as red-hot baked ingots discharged from a kiln such as a rotary kiln are placed on fixed and movable gratings arranged alternately in an airtight chamber, and the reciprocating tilting movement of the movable grating causes the powder and granular material to be In a powder cooling device for manufacturing cement clinker and the like by transporting and cooling with air supplied through the two passages, a first A truck driving device as shown in the figure is known.

Briefly, power from an electric motor (not shown) is transmitted to a shaft 1 via a reducer, and a crankshaft 5 is transmitted via a sprocket 2 fixed to the shaft 1, a chain 3 stretched thereon, and a sprocket 4. be rotated. As shown in FIG. 2, this rotational motion is converted into a reciprocating motion by a crank 6 provided at the end of the crankshaft 5 via a crank connecting rod 7, and the bogie shaft is supported at the other end of the crank connecting rod 7. 8
The cart 9 is moved in the direction of the arrow 10 by the reciprocating motion.

Since the cart 9 is supported via wheels 12 on a guide body 11 having an inclined surface parallel to the upper surface of the fixed grid (not shown) (see FIG. 3), the cart 9 reciprocates in the direction of the arrow 10. I can exercise. Therefore, the movable grid fixed to the upper surface of the trolley 9 makes a reciprocating and tilting movement along the upper surface of the fixed grid, and the powder and granules in the airtight chamber 13 carried on both of these grids are transferred in the direction of the discharge port 14. Ru. During such transfer, cooling air is pumped through the air supply chamber 16 from the air intake port 15 opened at the bottom of the cooling device, and is supplied to the powder and granular material through both the grids and cooled.

However, such a bogie drive device has a complicated mechanism, requires complicated design and manufacturing of each member, and requires time and effort to assemble and adjust the device.

In addition, since the crankshaft and truck shaft are installed through the air chamber, installation positions of the air chamber's supports, partition walls, accessories, etc. are restricted, and inspection and repair in the air chamber is restricted. The work is not easy.

In addition, the partition wall of the air supply chamber, which requires airtightness, has a long hole in it to allow the reciprocating movement of the bogie shaft. , a complex movable sealing device 17 must be provided. The airtightness of such a movable airtight device is generally poor, so leakage of cooling air and powdered talin force occurs, which reduces cooling efficiency and wears out the airtight device itself, making it difficult to withstand long-term operation. There are no drawbacks.

The present invention has been made to solve the above-mentioned problems, and it is possible to avoid complication of the drive mechanism of the truck, to easily perform inspection and repair in the air chamber, and to install desired members and accessories. It is an object of the present invention to provide a cooling device for powder and granular material that can withstand long-term continuous operation by improving the airtightness around the bogie shaft that penetrates the air supply chamber.

Its features include supporting the bogie via a guide body parallel to the fixed grid, a cam body fixed to the bogie shaft attached to the bottom surface of the bogie, and two driven members that abut the cam body. are fixedly hung down on both sides of the bogie shaft, and as the bogie shaft rotates, the cam body alternately pushes the two driven members to displace the bogie in the horizontal direction, and along with this horizontal displacement. The present invention provides a cooling device for powder and granular material that can also displace the cart in the vertical direction via the guide body.

Hereinafter, the present invention will be explained in detail based on examples thereof.

FIG. 4 shows a truck driving device for moving the truck 20 in a reciprocating tilting motion.
A movable lattice 24 is disposed fixedly on the upper surface of the . This truck 20 has a guide body 2 parallel to the upper surface of the fixed grid 23.
It is supported by wheels 26 via 5. A rotating truck shaft 27 is provided on the lower surface 20a of the truck 20, and a cam body 28 is fixed to the truck shaft 27. moreover,
On both sides of this bogie shaft 27, there is a distance of -2
Two driven members 29 and 30 are fixedly mounted depending on the carriage 20. The driven members 29 and 30 are activated by the cam body 28 being alternately pushed with the rotation of the truck shaft 27.
0 in the horizontal direction.

Note that since the truck shaft 27 only rotates, the sprocket 31 fixed to its end as shown in FIG.
As shown in FIG. 6, it is driven via a sprocket 33 and chain 34 of a shaft 32 which is driven by an electric motor via a speed reducer.

According to the embodiment with such a configuration, the truck shaft 27 is connected to the shaft 32.
When the rotation of is transmitted through the sprocket 33, chain 34, and sprocket 31, the cam body 28 fixed to the truck shaft 27 rotates, and the arrow 35 of this cam body 2.8 rotates.
With the rotation in the direction, the driven member i9 is pushed in the directions of arrows 3 and 6, and the driven member 30 is pushed in the direction of arrow 37. At this time, the guide body 25 supporting the truck 20 is
8.39, the trolley 20 moves on wheels 26 that are supported on the shaft, and is displaced upward or downward along the inclined surface of the guide body 25. When such an operation is repeated every rotation of the truck shaft 27, the movable grating 24 on the truck 20 moves to the fixed grating 2.
A reciprocating tilting movement is made in the direction of arrow 40 along the inclined upper surface of 3.

The above-mentioned cam body 28 may be an oval shape concentric with the truck shaft 27 or an eccentric circular shape, and the point is that the swing amount of the tip of the cam body 28 determines the distance required for the reciprocating motion of the movable grid 24. It is fine as long as it generates it. In addition, the bogie shaft 27
may be driven via a chain as described above, or may be directly rotationally driven via a speed reducer (not shown).

By making the movable grid move in a reciprocating and tilting manner using such a dolly drive device, the mechanism can be simplified, the design and manufacture of each component will be easier, and the effort of assembling and adjusting the device will be reduced. 'become.' In addition, since only the truck shaft is installed through the air chamber, restrictions on the position of the air chamber supports, partition walls, accessories, etc. can be relaxed, and inspection and repair work in the air chamber can be carried out. becomes easier. In addition, only a round hole is drilled in the partition wall of the air chamber, which requires airtightness, to allow rotation of the truck shaft.
The device 41 for ensuring airtightness around the truck shaft becomes simple.

Therefore, the airtight performance is improved, leakage of cooling air and powdered clinker is extremely suppressed, the cooling efficiency is improved, and wear of the device itself is reduced, so that it can withstand long-term operation.

As described in detail above, the present invention supports a bogie via a guide body parallel to a fixed grid, and also fixes a cam body to the bogie shaft of a bogie on which a movable grid is attached. Since the two contacting driven members are suspended and fixed on both sides of the bogie shaft, the cam body alternately pushes the two driven members as the bogie shaft rotates, displacing the bogie in the horizontal direction, and displacing the bogie in the horizontal direction. Along with the displacement, the carriage can also be displaced in the vertical direction along the guide body, and the movable lattice can be moved in a reciprocating tilting motion along the upper surface of the fixed lattice. Therefore, it is possible to avoid complicating the drive mechanism of the truck, and to easily perform inspections and repairs in the air chamber, and it is also possible to attach desired parts and accessories. By limiting the rotational motion only to simplifying the airtight device and improving the airtight performance, it is possible to create a cooling device for powder and granular materials that can withstand long-term continuous operation.

[Brief explanation of the drawing]

Fig. 1 is a front view of a conventional bogie drive device d, Fig. 2 is a sectional view taken along line nn in Fig. 1, Fig. 3 is a sectional view taken along line ■-■ in Fig. 1,
FIG. 4 is an enlarged view of the main parts of the bogie drive section of the present invention, FIG. 5 is a sectional view of the bogie shaft support section, and FIG. 6 is a schematic diagram of the power transmission section to the bogie shaft. 23-Fixed grid, 201 trolley, 20a-・lower surface, 24-
Movable grid, 25-guide body, 2"7 one axle, 28-cam body, 29.3o-driven member Patent applicant Kawasaki Heavy Industries, Ltd.

Claims (1)

[Claims] (1) A movable grid fixed to the top surface of the cart moves on a fixed grid with an inclined top surface as the cart moves, thereby cooling the powder while transporting the material. In the device, the bogie is supported via a guide body parallel to the upper surface of the fixed grid, a cam body is fixed to a bogie shaft mounted on the bottom surface of the bogie, and two driven members abut the cam body. The cam body is fixedly suspended from a bogie at a fixed distance on both sides of the bogie shaft, and as the bogie shaft rotates, the cam body pushes two driven members alternately to displace the bogie in the horizontal direction, Cooling of powder and granular material characterized in that the cart is also displaced in the vertical direction via the guide body in accordance with this horizontal displacement, so that the movable grating can perform reciprocating tilting movement along the upper surface of the fixed grating. Device.