JPH0558462A - Method of putting material into hoppers through tripper - Google Patents

Abstract

PURPOSE:To provide a material putting method into hoppers by a tripper which can put material into the hoppers without generating a grading segregation. CONSTITUTION:Hoppers 6A, 6B, and 6C are provided with position detectors 8A, 8B, 8C, and 8D to detect the position of tripper 1, and upper limit level meters 9A, 9B, and 9C to detect the upper limit levels of the material 7 to be charged in the hoppers 6A, 6B, and 6C. By the position signals of the tripper 1 from the position detectors 8A, 8B, 8C, and 8D, the tripper 1 is reciprocated in each hopper 6A, 6B, or 6C, respectively until the upper limit signals of the material 7 are issued from the upper limit level meters 9A, 9B, and 9C, and thereby, a specific amount of material 7 is charged in the hoppers 6A, 6B, and 6C, without generating grading segregation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for charging a raw material into a hopper by a tripper, and more particularly, a raw material can be charged into the hopper by a tripper without particle size segregation. It relates to the charging method.

[0002]

2. Description of the Related Art FIG. 2 is a perspective view showing a conventional method of charging raw materials into a hopper by a tripper. As shown in FIG. 2, conventionally, a crushed raw material 7 such as a blast furnace raw material or a sintering raw material has been sequentially charged into a plurality of hoppers 6A, 6B and 6C arranged in a line by the tripper 1. The tripper 1 is composed of a conveyor belt 4 stretched between an upper belt wheel 2 and a lower belt wheel 3 and a chute 5 provided at a lower end portion of the upper belt wheel 2, and the tripper 1 is Hopper by moving means (not shown)
Move along 6A, 6B, 6C.

The raw material 7 on the conveyor belt 4 is loaded into the hopper 6A via the chute 5. When a predetermined amount of the raw material 7 is loaded into the hopper 6A in this way, the tripper 1 moves to the next hopper 6B, and the raw material 7 is loaded into the hopper 6B. Similarly, the raw material 7 is placed in the hopper 6C.
Is charged.

[0004]

However, the above-mentioned conventional method for charging the raw material into the hopper by the tripper has the following problems. That is, since the tripper 1 was fixed on a predetermined hopper and the raw material 7 was charged in the hopper, the raw material 7 was piled up in the hopper and the particle size distribution of the raw material 7 was Depending on the angle of repose, coarse particles are distributed near the wall of the hopper and fine particles are distributed in the center of the hopper. Therefore, the coarse-grain raw material 7 in the central part of the hopper is first discharged from the discharge port in the lower part of the hopper,
Then, the fine-grain raw material 7 near the wall of the hopper is discharged. That is, the particle size distribution of the raw material 7 discharged from the hopper is not uniform. The raw material 7 is placed in the hopper by the conventional method.
Table 1 shows an example of the particle size distribution of the raw material 7 when charged with. As is clear from Table 1, the particle size distribution of the raw material 7 is largely segregated.

[0005]

[0006] Therefore, an object of the present invention is to provide a method for charging a raw material into a hopper so that the raw material can be charged into the hopper so that the particle size distribution becomes uniform.

[0007]

The present invention is a method for sequentially charging raw materials into a hopper by a tripper that moves along a plurality of hoppers arranged in a line,
The hopper is provided with a position detector for detecting the position of the tripper and an upper limit level meter for detecting the upper limit level of the raw material charged in the hopper, and the position of the tripper from the position detector. A signal causes the tripper to reciprocate for each of the hoppers until the upper limit level signal of the raw material is emitted from the upper limit level meter, thus charging a predetermined amount of the raw material into the hopper without particle size segregation. It has a feature.

An embodiment of a method for charging a raw material into a hopper by a tripper according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic cross-sectional view showing one embodiment of a method for charging a raw material into a hopper by a tripper according to the present invention. In FIG. 1, 1 is a tripper.
The tripper 1 has a conveyor belt 4 hung between an upper belt wheel 2 and a lower belt wheel 3 as in the conventional case,
It consists of a chute 5 provided at the lower end of the upper belt wheel 2, and is moved along the hoppers 6A, 6B, 6C by a moving means (not shown). 8A to 8D are position detectors which are attached to the upper part of the hopper and which consist of electric switches or optical switches.
It has a function of detecting the position of the (shoot 5). When the position of the tripper 1 is detected by the position detector,
A signal is sent to the moving means to reverse the moving direction of the tripper 1. 9A, 9B, and 9C are upper limit level meters composed of electric switches or optical switches for detecting the upper limit level of the raw material 7 charged in the hopper attached to the hopper, and the tripper 1 is , It moves to another hopper by the signal from the upper limit level meter 9A, 9B, 9C.

The raw material 7 on the conveyor belt 4 is loaded into the hopper 6A via the chute 5 as follows. That is, when the tripper 1 moves to the position detector 8A, a signal is sent from the position detector 8A to the moving means, the moving direction of the tripper 1 is reversed, and the tripper 1 moves toward the position detector 8B. When the tripper 1 moves to the position detector 8B, a signal is sent from the position detector 8B to the moving means, the moving direction of the tripper 1 is reversed again, and the tripper 1 moves toward the position detector 8A. In this way, the tripper 1 charges the raw material 7 into the hopper 6A while reciprocating on the hopper 6A. Therefore, since the raw material 7 in the hopper 6A is not accumulated in a mountain shape as in the conventional case, particle size segregation does not occur in the raw material 7.

When the charging level of the raw material 7 in the hopper 6A reaches the upper limit, a signal is sent from the upper limit level meter 9A to the moving means, and the tripper 1 moves to the next hopper 6B.
Then, as in the hopper 6A, the tripper 1 reciprocates and charges the raw material 7 into the hopper 6B until the charging level of the raw material 7 reaches the upper limit. In the same way, the raw material 7 is charged into the hopper 6C. When the raw material 7 is charged into the hopper by the method of the present invention, the raw material 7
Table 2 shows an example of the particle size distribution. As is clear from Table 2, according to the method of the present invention, the particle size segregation of the raw material 7 is
It is significantly smaller than that of the conventional method in Table 1 above.

[0011]

[0012]

As described above, according to the present invention, by feeding the raw material into the hopper while reciprocating the tripper, the useful effect that the particle size distribution of the raw material in the hopper can be made uniform. Is brought about.

[Brief description of drawings]

FIG. 1 is a schematic cross-sectional view showing an embodiment of a method for charging a raw material into a hopper by a tripper according to the present invention.

FIG. 2 is a perspective view showing a conventional method of charging a raw material into a hopper by a tripper.

[Explanation of symbols]

 1: Tripper, 2: Upper belt car, 3: Lower belt car, 4: Conveyor belt, 5: Chute, 6A, 6B, 6C: Hopper, 7: Raw material, 8A, 8B, 8C, 8D: Position detector, 9A , 9B, 9C: Upper limit level meter.

Claims (1)

[Claims] 1. A method for sequentially charging raw materials into the hopper by means of a tripper that moves along a plurality of hoppers arranged in a line, the position detection for detecting the position of the tripper in the hopper. An upper limit level meter for detecting the upper limit level of the raw material charged in the container and the hopper, the tripper by the position signal of the tripper from the position detector, for each of the hopper, the upper limit A method of charging the raw material into the hopper by a tripper, characterized in that the raw material is reciprocally moved until the upper limit level signal of the raw material is generated from the level meter, and thus, a predetermined amount of the raw material is charged into the hopper without particle size segregation. ..