JPH056283Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Field of industrial application) This invention involves stacking multiple types of bulk raw materials of different brands in multilayers in a circular storage yard, mixing these bulk raw materials and continuously The present invention relates to a multilayer stacking and dispensing device for bulk raw materials that enables dispensing.

(Prior art) A central tower is installed in the center of a circular storage yard,
One end of each of a stacker (stacking transport device) and a reclaimer (dispensing device) is pivotally connected to the central tower so that each end can rotate around the entire circumference, and the stacker is oscillated back and forth on the surface of the storage yard to collect different brands. A circular stock pile is created by sequentially stacking multiple types of bulk raw materials in an inclined multi-layered manner, while a reclaimer slices the stock pile into thin pieces in the radial direction and delivers them onto a delivery belt conveyor. A method for loading and discharging bulk raw materials has been proposed in which the contained bulk raw materials are continuously mixed and taken out.

In this way, with the method of creating a circular stockpile in a circular storage yard, the stacking of bulk materials by the stacker and the unloading by the reclaimer can be carried out continuously without interruption, and the storage yard requirement is reduced. It has the characteristics that the area is small and can be used repeatedly within a certain area, and the residence time of bulk raw materials in the storage yard can be shortened to improve the overall efficiency of storage and compounding operations.

(Problem to be solved by the invention) By the way, the stacker that creates the circular stockpile as described above has one end (base) supported at the center of the circular storage yard.
Since the stacker always swings back and forth around this fixed support point to choreograph the bulk materials, the cross-sectional shape of the stockpile after it has been stacked is chevron-shaped (triangular).

In this way, when choreographing bulk raw materials using a stacker whose center of oscillation is concentric with the storage yard, the raw materials are sequentially choreographed from the tip of the stacker to the top (ridge line) of the mountain-shaped stockpile, starting from the lower layer. However, this has the following problems.

(1) The height of the completed stock pile increases, and this height increases in proportion to the number of stacks.

(2) Since the support point of the stacker and the reclaimer are the same, the fulcrum structure becomes complicated.

(3) In order to limit the stacking height, a separate shuttle conveyor or tripper must be installed to flatten the top surface of the stacked stockpiles and make the cross section trapezoidal.

(4) As the stacker moves back and forth between the peaks (ridge lines) of the mountain-shaped stockpile, the bulk raw materials flow onto the slopes on both sides of the stockpile (segregation), causing the bottom of the stockpile to widen and further spread. , the reclaimer placed on the outer periphery of the stock pile may run onto the rail supporting one end, causing trouble in the running of the reclaimer.

This idea was devised in view of the above points, and the cross section of the stockpile to be stacked is trapezoidal to reduce the height, and the large chunks of raw material flowing on the outer slope of the stockpile are reduced, thereby solving the problem of segregation. It is an object of the present invention to provide a multilayer stacking and discharging device for bulk raw materials that reduces the amount of waste and does not hinder the running of a reclaimer.

(Means for solving the problem) The gist of this invention to achieve the above purpose is to sequentially tilt several types of bulk raw materials of different brands using a stacker on a circular storage yard and a concentric circumferential surface. In a multi-layer stacking and dispensing apparatus for bulk raw materials, which stacks the bulk raw materials in multiple layers to create an annular stock pile, slices the stock pile into radial cross sections using a reclaimer and discharges the bulk raw materials, and continuously prepares the bulk raw materials, the stacker comprises: The base of the reclaimer is swingably supported at a predetermined distance from the center of the storage yard by a support member that is swingably supported around the center of the storage yard, and the reclaimer moves its outer end onto a rail laid around the outer periphery of the stockpile. A multilayer stacking and discharging device for bulk raw materials is characterized in that the bulk raw materials are supported freely and the inner end is rotatably supported in the center of a storage yard.

(Function) In the above configuration, when the stacker takes the lead and shakes out the bulk material from its tip, the stacker, which is supported by the supporting member in a stationary state, swings its center of swing away from the center point of the storage yard. It is done as follows.

The tip of the stacker swings back and forth horizontally in an arc between the inner and outer ridges forming the flat top surface of the stockpile, which has a trapezoidal cross section, performing a choreography, and when it reaches both ridges, the supporting member Turn and move forward at a predetermined angle.

In this way, multiple types of bulk raw materials of different brands are stacked to create a multi-layer annular stockpile, while the reclaimer gradually rotates around the center of the storage yard behind the stacker, moving the created stockpile in a radial direction. The bulk raw materials containing all brands are continuously mixed and discharged.

(Example) Hereinafter, an example of this invention will be described based on the drawings.

FIG. 1 is a block diagram of this invention.

In the figure, a central tower is erected on a foundation 2 set on the ground at the center of a circular storage yard A, and a dome-shaped roof 3 is supported at the upper end of the central tower 1. Reference numeral 4 denotes a support member that supports the center tower 1 so as to be able to rotate around the entire circumference, and 5 supports the base 5a on the support member 4 so as to be able to freely swing, and swings back and forth to support the tip 5.
6 is a supply belt conveyor whose end is supported on the upper part of the center tower 1 and supplies bulk raw materials before blending from the outside to the stacker 5; 7 is this supply belt conveyor; The chute 8 connects the 6th end and the base of the stacker 5, and the inner end 8a is supported on the center tower 1 so as to be able to rotate around the entire circumference, and the outer end 8b is movably supported on the rail 9 laid at the outer periphery of the stockpile B. A reclaimer 10 for supporting and slicing the stock pile B into radial cross-sections, blending and dispensing bulk raw materials, is arranged in the underground tunnel 11, and has its base end facing the inner end of the reclaimer 8. This is a conveyor belt conveyor that receives bulk materials discharged from the warehouse and transports them to the outside.

In the above configuration, when the bulk raw material is supplied from the supply belt conveyor 6 to the stacker 5 via the chute 7, the stacker 5 swings back and forth to shake out the bulk material from its tip 5b, and as the stacker 5 swings, In connection with this, the support member 4 gradually rotates to sequentially shake out and stack a plurality of types of bulk raw materials of different brands, thereby forming a multi-layer structure having a trapezoidal cross section concentric with the central tower 1 as shown in FIG. Circular stock pile B
Create.

In this way, the stockpile B created by the stacker 5 is sliced into thin pieces in the radial direction by the reclaimer 8, which rotates all around the center of the storage yard behind the stacker 5, and is taken out. Bulk raw materials of all brands are continuously taken out by a belt conveyor 10.

(Effects) According to this invention configured as described above, the following effects are achieved.

(1) Since the base of the stacker (stacking transport device) is supported on a support member spaced a predetermined distance from the center tower, the multilayer annular stockpile stacked by the stacker has its top surface flat. Compared to those with a chevron-shaped cross section, the stacking height can be reduced and the number of stacks can be increased, and when stored indoors, the height of the building can be reduced.

(2) Since the stock pile expands horizontally and increases the number of layers, it is best to mix the bulk materials that are sliced and discharged by the reclaimer to include all brands, regardless of the location. As a result, it is possible to obtain homogeneity in the properties of the discharged bulk material.

(3) A stockpile with a trapezoidal cross-section and a flat top surface can be made low in height, so the reclaimer can also be made low, and the swinging support point of the stacker and the pivoting support point of the reclaimer are separate, making it easier to support. The structure is simple, and since the top surface of the stockpile stacked by the stacker can be made flat, there is no need for equipment to flatten the top surface of the stacked stockpile, which simplifies the entire device. This reduces the weight of mechanical equipment.

(4) The stacker moves the bulk materials to the stockpile along the flat top of the stockpile, so the falling distance is short and dust is difficult to form.

(5) The choreography of the bulk raw materials is as follows:
It is carried out between the inner and outer ridges of the flat top surface of the stockpile, and moreover, it is carried out inside the highest ridgeline of the chevron-shaped stockpile that is in the middle of being stowed. A large amount of raw material flows, and there is no possibility that large chunks of raw material will ride on the running rail of the reclaimer installed on the outer periphery of the stock pile and interfere with the running of the reclaimer.

(6) Since the length of the stacker is shortened, the length of the part that swings back and forth becomes shorter, which reduces weight.

[Brief explanation of drawings]

Fig. 1 is an overall configuration diagram of this invention, and Fig. 2 is a plan view of the storage yard. 1...Central tower, 2...Foundation, 3...Roof,
4... Support member, 5... Stacker, 6... Supply belt conveyor, 7... Chute, 8... Reclaimer, 9... Rail, 10... Export belt conveyor, 11... Underground tunnel, A... ...Storage yard, B...Stock pile.

Claims (1)

[Scope of utility model registration request] A stacker stacks several types of bulk raw materials of different brands on a circumferential surface concentric with a circular storage yard in an inclined multi-layered manner to create an annular stockpile, and a reclaimer slices the stockpile into radial cross-sections and takes them out. In a multilayer stacking and discharging device for bulk raw materials that continuously blends bulk raw materials, the stacker has its base pivoted at a predetermined distance from the center of the storage yard on a support member that is rotatably supported around the center of the storage yard. The reclaimer has its outer end movably supported on a rail laid around the outer periphery of the stock pile, and
A multilayer stacking and discharging device for bulk raw materials, characterized in that an inner end is rotatably supported at the center of a storage yard.