JPH08239107A - Lumplike article removing device - Google Patents

Abstract

PURPOSE: To provide a raw material removing device capable of achieving the stable operation for raw material lump removing work. CONSTITUTION: In a lumplike article removing device, a fixed slit body 20 is installed on a drop path for raw materials. Powder raw materials out of raw materials to be supplied from a belt conveyor 10 are dropped from slits of the fixed slit body 20 to a powder raw material recovery chute 70. On the other hand, raw material lumps are slid on the fixed slit body 20 and dropped and recovered independent of the powder raw materials. The raw material-lumps stuck on the fixed slit body 20 are accumulated on a lump taking comb-like blade 60 by raising the lump taking blade 60 by a first hydraulic cylinder 50 after inserting the comb teeth-like lump taking blade 60 into the slit clearance of the fixed slit body 20. Since the fixed slit body is always provided on the drop path for the raw materials, the raw material lumps are not mixed in the recovered powder raw materials, and the stabilization of the operation of the device can be achieved since blocking of the fixed slit body can be prevented by removing the raw material lumps on the fixed slit body by the lump taking blade.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the field of handling powder raw materials such as cement raw materials and sintering raw materials, and relates to an apparatus for removing lumps contained in the powder raw materials.

[0002]

2. Description of the Related Art In the field of handling powder raw materials such as cement raw materials and sintering raw materials, the agglomerates conventionally mixed in the powder raw materials (hereinafter referred to as "raw material lumps") are in the pretreatment stage of the raw materials. Will be removed. As a device for removing a raw material lump mixed in a powder raw material, Japanese Utility Model Laid-Open No. 59-176828 and Japanese Patent Laid-Open No. 6-107328 disclose a lump removing device.

FIG. 8 (a) is a schematic view of Shokai 59-176828.
It is a schematic explanatory drawing of the lump removal apparatus disclosed by the publication. FIG. 8B is a diagram showing a top view of the fixed slit body. In FIG. 8, 10 is a belt conveyer, 20 is a fixed slit body, 70 is a powder raw material collecting shoe, 80 is a raw material lump collecting shoe, 90 is a raw material, 91 is a raw material lump, and 92 is a powder raw material. .

In the lump removing apparatus shown in FIG. 8 (a), a fixed slit body 20 is fixedly installed between a belt conveyor 10 which is a raw material supply mechanism and a powder raw material recovery shoe 70. As shown in FIG. 8B, the fixed slit body 20 is a lattice member provided with slits at predetermined intervals. The lattice plane of the fixed slit body 20 is inclined vertically. The upper end of the lattice surface of the fixed slit body 20 is arranged below the belt conveyor 10. The lower end of the lattice surface of the fixed slit body 20 is a powder raw material recovery shoe 7
It is located outside 0. At the lower end of the lattice plane of the fixed slit body 20, a raw material lump recovery shoe 80 is provided.

In the lump removing apparatus shown in FIG. 8A, the raw material 90 is conveyed from the belt conveyor 10 onto the fixed slit body 20. The powder raw material 92 in the raw material 90 is
The powder falls from the slit gap of the fixed slit body 20 and is collected by the powder raw material collection shoe 70. Raw material mass 9 in raw material 90
Sample No. 1 slides down on the lattice surface of the fixed slit body 20 and is collected by the raw material block collection shoe 80. As a result, powder raw material 9
The raw material lump 91 can be removed from 2.

FIG. 9 is a schematic explanatory view of the lump removing device disclosed in Japanese Patent Laid-Open No. 6-107328.
In FIG. 9, 10 is a belt conveyor, 60 is a lump taker blade, 6
1 is a lump take-up blade rotating shaft, 63 is a scraping blade, 64 is a scraping blade rotating shaft, 65 is a cylinder for driving the scraping blade to rotate, 70 is a powder raw material collecting shoe, and 80 is a raw material chunk collecting shoe. , 90 indicates a raw material, and 91 indicates a raw material lump.

In the agglomerate removing device shown in FIG. 9, a comb-like agglomerating blade 60 is provided between a belt conveyor 10 which is a raw material supply mechanism and a powder raw material recovery shoe 70.
The lump collecting blade 60 is arranged at a position corresponding to the flow of the raw material 90 sent from the belt conveyor 10.
The lump collecting blade 60 has one end connected to the lump collecting blade rotating shaft 61. A scraping blade 63 is provided above the rotation position of the lump collecting blade 60. One end of the brush-off blade 63 is connected to the brush-off blade rotating shaft 64. The scraping blade 63 is arranged at a position where it can pass between the blades of the chunk scraping blade 60. Below the scraping blade 63 and next to the powder raw material recovery shoe 70, a raw material lump recovery shoe 80 is provided.

In the lump removing device shown in FIG. 9, the raw material 90 supplied from the belt conveyor 10 is sent to the comb-shaped lump removing blade 60. The powder raw material in the raw material 90 falls through the gap between the comb blade-shaped lump-taker blades 60 and is collected by the powder raw material collection shoe 70. The raw material lump 91 in the raw material 90 remains on the lump removing blade 60. Raw material mass 91 on the mass collecting blade 60
Is collected by being thrown into the raw material lump collecting shoe 80 by rotating the lump collecting blade 60 around the lump collecting blade rotating shaft 61. The raw material lump 91 that is attached to the lump-taker blade 60 and does not fall off is removed by the scraper blade 63 when the lump-taker blade 60 is rotated.
Is rotated to be scraped off from the lump collecting blade 60 and collected in the raw material lump collecting shoe 80.

[0009]

[Problems to be Solved by the Invention]
In the lump removing device disclosed in Japanese Patent No. 28, since the fixed slit body is fixedly installed between the raw material supply mechanism and the powder raw material recovery shoe, the raw lump adheres to the lattice of the fixed slit body. May remain. Therefore, unless the raw material mass on the lattice of the fixed slit body is removed manually manually,
There is a problem that the gap of the lattice is blocked by the raw material block and the raw material block removal operation cannot be performed.

On the other hand, in the agglomerate removing device disclosed in Japanese Patent Laid-Open No. 6-107328, a comb-shaped agglomerating blade provided between the raw material supply mechanism and the powder raw material recovery shoe is rotatable. Therefore, it is possible to move the lump taker blade and remove the raw material lump on the lump taker blade. However, there is a problem that the raw material mixed with the raw material lump is directly sent from the raw material supply mechanism to the powder raw material recovery shoe while the lump taker blade is rotating.

The present invention is intended to solve the above problems, and is a lump removing device capable of achieving a more stable operation of the raw lump removing work.

[0012]

Means for Solving the Problems The present invention is (1) a fixed slit body which is permanently installed in a raw material dropping path from a raw material supply mechanism to a powder raw material recovery port, and whose upper end portion is on the side of the raw material supply mechanism. And a fixed slit body in the shape of a comb blade in which a plurality of parallel slits are formed in the inclined surface, the lower end portion of which is disposed outside the powder raw material recovery port, and (2) one end of the fixed slit body. A plurality of lump-taker blades, which are arranged and fixed in a comb-like shape on the rotary shaft and whose other end is an open end, at intervals allowing passage through the slit gaps, and (3) the lump-taker blades are located near the fixed slit body. (4) In the vicinity of the fixed slit body, the lump collecting blade moves the slit gap from below the fixed slit body to above the fixed slit body at a position near the fixed slit body. Raise or lower the deburring blade so that it passes through. That mass-up blade elevating mechanism, a lump removing apparatus characterized by having a.

[0013]

In the lump removing apparatus of the present invention, the fixed slit body is always provided in the raw material dropping path from the raw material supply mechanism to the powder raw material recovery port. Among the raw materials supplied from the raw material supply mechanism to the fixed slit body, the powder raw materials fall through the slit gap and are collected in the powder raw material recovery port. On the other hand, since the raw material block in the raw material cannot pass through the slit gap, it slides down the inclined surface of the fixed slit body and is collected at the lower end of the inclined surface of the fixed slit body. Since the fixed slit body is permanently installed in the raw material dropping path, the raw material lump does not drop into the powder raw material recovery port.

In the lump removing device of the present invention, the raw material lumps adhering to and remaining on the inclined surface of the fixed slit body are stacked on the lump collecting blade, and the raw material lumps are conveyed to the retracted position of the lump collecting blade. The purpose is to eliminate the blockade of the slit of the fixed slit body. The raw material lumps attached and left on the inclined surface of the fixed slit body are removed by the following procedure.

(1) The lump collecting blade moving mechanism moves the lump collecting blade to a position near the fixed slit body. Since the fixed slit body is comb-shaped, the open end of the lump taker blade is inserted into the gap of the slit of the fixed slit body from the open end of the comb blade of the fixed slit body. In the present invention, the fact that the fixed slit body is comb-shaped means not only that one side of the end of the slit of the fixed slit body is completely open, but also that a lump-collecting blade can be inserted. It also includes the case where it is opened to the depth. (2) In the vicinity of the fixed slit body, the lump-taker blade lifting mechanism moves up and down or rotates so that the lump-taker blade passes through the slit gap from below the fixed slit body to above the fixed slit body. . The raw material block that has adhered and remains on the inclined surface of the fixed slit body is piled up on the delump blade when the deburring blade passes through the slit gap of the fixed slit body. (3) After the raw material lumps attached and left on the inclined surface of the fixed slit body are stacked on the lump-taker blade, the lump-taker blade moving mechanism moves the lump-taker blade to a predetermined retracted position. (4) At the retracted position, the rotary shaft on which the lump collecting blades are arranged and fixed in a comb-like shape is rotated to drop the raw material lumps on the lump collecting blades.

As a result, it is possible to simultaneously prevent (1) blockage of the fixed slit by the raw material block and (2) prevention of mixing of the raw material block into the powder raw material collected in the powder raw material recovery port. Become.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic perspective view of a lump removing device of the present invention. In FIG. 1, 10 is a belt conveyor, 20 is a fixed slit body, 21 is a slit plate, 22 is a support beam, 30 is a carriage, 31 is an electric motor with a speed reducer, 32 is a belt, 33 is a drive wheel, and 34 is a rail. Le, 35 is a pillar, 3
6 is a balance weight, 40 is a first hydraulic cylinder,
40a is a piston rod of the first hydraulic cylinder-40,
41 is a frame, 42 is a rotating shaft, 43 is a guide roll, 50 is a second hydraulic cylinder, 50a is a piston rod of the second hydraulic cylinder 50, 51 is a hydraulic cylinder-fixing plate, 52 and 53. , Is a bearing, 60 is a lump taker blade, 6
1 is a rotary shaft of a lump taker blade, 62 is a lever, 70 is a powder raw material recovery shoe, and 90 is a raw material.

As shown in FIG. 1, a belt conveyor-10
The fixed slit body 20 is arranged in the vicinity. Below the fixed slit body 20, a powder material recovery shoe 70 is arranged.

The fixed slit body 20 is constructed by arranging a plurality of plate-shaped slit plates 21 upright and arranged in parallel at regular intervals. The plate surface normal direction of each slit plate 21 is parallel to the horizontal direction. On the upper part of the fixed slit body 20,
A side surface of each slit plate 21 forms a plane in which a plurality of slits are formed (hereinafter referred to as “slit surface”). The slit surface is an inclined surface having a slope along the side of the slit plate 21. Each slit plate 21 is supported by a horizontal support beam 22 provided below each slit plate 21 at the inclined lower end of the slit surface.

The upper end of the fixed slit body 20 with the inclined plane of the slit is disposed near the belt conveyor 10.
The lower end portion of the fixed slit body 20 having the inclined slit surface is arranged outside the powder raw material recovery shoe 70.

A rail 34 is laid between the vicinity of the fixed slit body 20 and a predetermined retracted position. A truck 30 is mounted on the rail 34. The trolley 30 is provided with an electric motor 31 with a speed reducer. Electric motor with reduction gear 3
When 1 is operated, the driving force of the electric motor 31 with a speed reducer is transmitted to the driving wheels 33 through the belt 32. as a result,
The trolley 30 can run on the rail 34.

A pair of columns 35 are erected on the carriage 30. The column 35 has a concave rail shape in cross section.

A frame 41 is attached to the column 35 so as to be able to move up and down. A rotary shaft 42 and a lump-collecting blade rotary shaft 61 are horizontally attached to the frame 41 via bearings. Both ends of the rotary shaft 42 and the lump-taker blade rotary shaft 61 are guided by a pair of rail-shaped columns 35. Guide rolls 43 are provided at both ends of the rotary shaft 42 and at both ends of the lump collecting blade rotary shaft 61 so that the frame 41 can smoothly move up and down along the support column 35. . The lump collecting blade rotating shaft 61 and the guide roll 43 are connected via a bearing. Therefore, the guide rolls 43 provided at both ends of the lump-taker blade rotation shaft 61 can rotate independently of the lump-taker blade rotation shaft 61.

A plurality of lump-collecting blades 60 are fixed in a comb-like shape at an intermediate portion of the lump-collecting blade rotating shaft 61. Lumping blade 60
Extends from the lump-taker blade rotation shaft 61 toward the fixed slit 20 side. A lever 62 is provided in the middle of the lump-taker blade rotating shaft 61. The lever 62 extends from the lump-collecting blade rotating shaft 61 in the direction opposite to the lump-collecting blade 60. The lever 62, the lump collecting blade rotating shaft 61, and the lump collecting blade 60 form a lever. Therefore, when a vertical force is applied to the lever 62, the lump collecting blade rotating shaft 61 serves as a fulcrum and the lump collecting blade 60 rotates.

A first hydraulic cylinder 40 is fixed to the center of the beam above the frame 41. The tip of the piston rod 40 a of the first hydraulic cylinder 40 is fixed on the carriage 30. The frame 41 is moved up and down by the operation of the first hydraulic cylinder-40. As a result, the agglomerating blade rotating shaft 61 and the agglomerating blade 6 provided on the frame 41.
0 moves up and down.

A bearing 5 is attached to the beam above the frame 41.
2, a hydraulic cylinder-fixing plate 51 is provided. A second hydraulic cylinder-50 is provided on the hydraulic cylinder-fixing plate. The tip of the piston rod 50a of the second hydraulic cylinder 50 is levered via a bearing 53.
It is connected to the tip of 62. Second hydraulic cylinder-5
0 is the piston rod 50 of the second hydraulic cylinder-50
When the length of a is maximum, the lump-taker blade 60 is adjusted to be substantially horizontal. When the second hydraulic cylinder-50 is operated, the tip of the lever 62 is the force point and
Becomes a fulcrum, and the lump taker blade 60 makes a rotary motion.

FIG. 2 is a schematic explanatory view showing the positional relationship between the fixed slit body and the lump collecting blade. FIG. 2A shows a schematic top view seen from above the fixed slit body. Figure 2
FIG. 2B shows an AA enlarged sectional view of FIG. still,
The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

As shown in FIG. 2 (a), when the carriage 30 is in the vicinity of the fixed slit body 20, the lump collecting blade 60 is inserted into the gap between the slit plates 21 of the fixed slit body. The traveling direction of the carriage 30, the longitudinal direction of the lump collecting blade 60,
And the edge directions of the slit plate 21 are aligned in parallel.

As shown in FIG. 2B, a height gap 23 corresponding to the width of the slit plate 21 is formed between the slit surface of the fixed slit body and the support beam 22. Height gap 23 between the slit surface of the fixed slit body and the support beam 22
Is larger than the vertical width of the lump collecting blade 60. The height of the lump collecting blade 60 is adjusted so that the lump collecting blade 60 fits within the height gap 23 when the frame 41 is lowered to the lowest height.

3 to 7 are explanatory views for explaining the lump removing method by the lump removing device shown in FIG.
Reference numeral 80 represents a raw material lump recovery shoe, and 91 represents a raw material lump. still,
The same parts as those in FIG. 1 are designated by the same reference numerals and the description thereof will be omitted.

Hereinafter, a method for removing lumps in the raw material using the lump removing device shown in FIG. 1 will be described.

(1) The material is supplied from the belt conveyor 10 to the fixed slit 20. Of the raw material 90 supplied from the belt conveyor 10, the powder raw material passes through the gap between the slit plates of the fixed slit body 20 and is recovered by the powder raw material recovery shoe 70. On the other hand, the raw material lump 91 slides down on the slit surface of the fixed slit body 20 and is collected by the raw material lump collection shoe 80 arranged near the lower end of the inclined surface of the fixed slit body 20. In addition, some raw material blocks 9
0 remains on the slit surface of the fixed slit body 20 (see FIG. 3). (2) With the trolley 30 retracted to the retracted position, the first hydraulic cylinder-40 is operated to operate the first hydraulic cylinder-
The piston rod of 40 is contracted, and the frame 41 is lowered to the lowest height. Further, the second hydraulic cylinder-50 is operated to extend the piston rod of the second hydraulic cylinder-50 to keep the delumping blade 60 horizontal. With the lump collecting blade 60 held horizontally at the lowest height, the electric motor 31 with a reducer
To move the carriage 30 to a position near the fixed slit body 20 (see FIG. 4). (3) After the carriage 30 is moved to the position near the fixed slit body 20, the first hydraulic cylinder-40 is operated to extend the piston rod 40a of the first hydraulic cylinder-40.
As a result, the lump taker blade 60 rises together with the frame 41, and the raw material lump 91 on the fixed slit body 20 becomes lump taker blade 60.
It is loaded on top (see Figure 5). (4) After raising the height of the lump catching bar 60 to be higher than the height of the upper end of the inclined surface of the fixed slit body 20, the electric motor 34 with a reducer is operated to move the carriage 30 to the retracted position ( (See FIG. 6). (5) After the carriage 30 is moved to the retracted position, the second hydraulic cylinder-50 is operated to move the second hydraulic cylinder-4.
The piston rod 40a of 0 is contracted. As a result, the lever
62 is pulled up and the tip of the lump collecting blade 60 is lowered, and the raw material lump 91 stacked on the lump collecting blade 60 is dropped into the raw material lump collecting shoe 80 (see FIG. 7).

By repeating the steps (2) to (5), the raw material mass 91 remaining on the fixed slit body 20 is removed.

In the step (3), the lump-collecting blade 6
Instead of raising 0, the raw material lump 91 on the fixed slit body 20 may be stacked on the lump collecting blade 60 by rotating the lump collecting blade 60. In this case, the length of the piston rod 40a of the second hydraulic cylinder 40 is set such that the open end of the lump take-up blade 60 can rotate more than the height of the upper end of the slanted surface of the fixed slit body 20.

[0035]

EFFECTS OF THE INVENTION The lump removing apparatus of the present invention is (1) in the dropping path of the raw material from the raw material supply mechanism to the powder raw material recovery port,
A comb-shaped fixed slit body is permanently installed, and (2)
A plurality of lump-collecting blades arranged in a comb-like shape that can pass through the slits of the fixed slit body, and a fixed slit body for collecting the lumps of raw material remaining on the fixed slit on the lump-collecting blade. Since it has a lump-taker blade elevating mechanism that moves up and down or rotates upward from the fixed slit body and a lump-taker blade moving mechanism that allows the lump-taker blade to reciprocate between the fixed slit body vicinity position and the retracted position, ( 1) Prevention of mixing of raw material lumps into the powder raw material recovered at the powder raw material recovery port,
(2) It is possible to simultaneously prevent the fixed slit from being clogged by the raw material lump, and to achieve a more stable operation of the raw material lump removal work.

[Brief description of drawings]

FIG. 1 is a diagram showing a schematic perspective view of a lump removing device of the present invention.

FIG. 2 is a schematic explanatory view showing a positional relationship between a fixed slit body and a lump collecting blade. FIG. 2A shows a schematic top view seen from above the fixed slit body. FIG. 2B shows an AA enlarged sectional view of FIG.

FIG. 3 is an explanatory diagram for explaining a lump removal method by the lump removal device shown in FIG. 1.

4 is an explanatory diagram for explaining a lump removal method by the lump removal device shown in FIG. 1. FIG.

5 is an explanatory diagram for explaining a lump removal method using the lump removal device shown in FIG. 1. FIG.

FIG. 6 is an explanatory diagram for explaining a lump removal method by the lump removal device shown in FIG. 1.

FIG. 7 is an explanatory diagram for explaining a lump removal method by the lump removal device shown in FIG. 1.

FIG. 8 (a) is a schematic explanatory view of a lump removing device disclosed in Japanese Utility Model Laid-Open No. 59-176828.
FIG. 8B is a diagram showing a top view of the fixed slit body.

FIG. 9 is a schematic explanatory view of a lump removing device disclosed in Japanese Patent Laid-Open No. 6-107328.

[Explanation of symbols]

 10 Belt Conveyor 20 Fixed Slit Body 21 Slit Plate 30 Bogie 31 Motor with Reducer 32 Belt 33 Drive Wheel 34 Rail 35 Strut 40 First Hydraulic Cylinder 41 Frame 43 Guide Roll 50 Second Hydraulic Cylinder -51 Hydraulic cylinder-Fixing plates 52, 53 are bearings 60 Collecting blade 61 Collecting blade rotating shaft 62 Lever 70 Powder raw material collecting shoe 80 Raw material chunk collecting shoe 90 Raw material 91 Raw material chunk

Claims (1)

[Claims] (1) A fixed slit body which is permanently provided in a raw material dropping path from a raw material supply mechanism to a powder raw material recovery port, wherein an upper end portion is arranged on the raw material supply mechanism side and a lower end portion is powder. A comb-blade-shaped fixed slit body having a plurality of parallel slits formed on the inclined surface arranged outside the body raw material recovery port,
(2) A plurality of lump-collecting blades, one end of which is arranged and fixed in a comb-like shape on a rotating shaft and the other end of which is an open end, with an interval allowing passage through the slit gap of the fixed slit body. A lump-taker blade moving mechanism that enables the lump-taker blade to reciprocate between a position near the fixed slit body and a retracted position, and (4) at the position near the fixed slit body, the lump-taker blade is fixed from below the fixed slit body. An agglomerate removing device, comprising: a agglomerating blade elevating mechanism that elevates or rotates an agglomerating blade so as to pass through a gap between slits toward the upper side of the slit body.