JPS62192542A - Operating method for bedding system in sintering apparatus - Google Patents

Abstract

PURPOSE:To stably operate bedding system with a simple controlling means free from mechanical shock to apparatus, by containing products from sintering machine into a hopper and actuating a damper provided at hopper exit so that supplying quantity of bedding material is controlled according to velocity of sintering machine. CONSTITUTION:If velocity of the sintering machine 2 is increased and much bedding material in a bedding hopper 9 becomes to be required, output signal of a tachogenerator 29 for detecting velocity of the machine 2 is increased. On the other hand, opening degree for supplying bedding of the damper 28 operated according to velocity of the machine 2 provided at exit of the hopper 27 for containing product to be supplied through the machine 2 increases opening degree of an exit 27b on the right of the hopper 27 based on the signal. Consequently, bedding material supplied to the hopper 9 is increased, inversely, if velocity of the machine is lowered, the material is decreased and bedding material to be contained in the hopper 9 is always maintained at a fixed level by turning the damper 18 according to increase of decrease of velocity of the machine 2.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method of operating a bedfish system in a sintering device.

[Conventional technology]

FIG. 3 is a diagram showing the configuration of a bedding system of a conventional sintering facility, and FIG. 4 is a relay circuit diagram for operating this bedding system. In the figure, (1) is the main raw material charging hopper;
(2) is a sintering machine, (3) is a cooler, (4) is a crusher, (5) is a screen, (6) is a reversible conveyor that feeds finished products when rotating in the forward direction and feeds the floor when rotating in the reverse direction. (7) and (8) are bedding conveyors, (9) is bedding hopper, (io) is a sensor for detecting HIGH level of bedding hopper, (11) is the same < LOW detection sensor, (12) is a contact that turns ON when the hopper level is LOW, (13) is a contact that turns OFF when the hopper level is HIGH, (14) is the self-holding contact of relay X, (15) is the coil of relay X that is excited when the hopper level is LOW, (1B) and (21)
is the a contact of relay
22) is a relay for commanding forward and reverse rotation of the reversible conveyor (6), and (23) and (24) are relays (17), respectively.
.

Auxiliary contacts (18), (25) and (26) are auxiliary contacts of relays (20) and (22), respectively.

In the FIG laying system configured as described above, the main raw material cut out from the charging hopper (1) is sintered by the sintering machine (2), and then cooled in the cooler (3).
After being crushed by the crusher (4), the screen (
5). Then, by a reversible conveyor (6),
Normally, it rotates in the normal direction and operates toward the finished product feed side, but when the bedding hopper (9) reaches the LOW level (11), the bedding conveyor (7) i81 starts operating, and at the same time the reversible conveyor (6) starts operating. ) performs reverse operation to guide the raw material to the bedding hopper (9).When the level of this bedding hopper (9) is HIGH
When the H level (10) is reached, the bedding conveyor (71)
, [8) are stopped, and the reversible conveyor (6) performs normal rotation operation to resume product feeding operation.

The relay circuit shown in Fig. 2 starts and stops the bedding feeding conveyor +71i81 and reverses the reversible conveyor (5) in accordance with the HIGH and LOW levels of the bedding hopper (9). Floor hopper (9) level is LOW
When this happens, the contact (12) turns ON and the coil (15)
An excitation current flows through the relay X, and the relay X self-holds by the self-holding contact (14). At the same time, the a contact of relay X (
16) is turned ON, relays (17) and (
18) is activated, and these auxiliary contacts (23) and (2
4) is turned ON and the bedding conveyor f71. f8
Start 1. In addition, the relay (23) is activated by turning on the other a contact (21), and its auxiliary contact (26)
is turned on, and the reversible conveyor (6) rotates in reverse.

[Problem that the invention seeks to solve]

In the conventional operating method of the bedding system as described above, the start and stop of the bedding feeding conveyor Since forward/reverse switching (6) occurs frequently, the life of the equipment is short due to the impact of the motor driving these equipment on the mechanical system, and based on the raw material level signal of the bedding hopper (9), There were problems such as the need to install a complicated control circuit that operates according to the system.

The present invention has been made to solve the above-mentioned problems, and its object is to obtain an operating direction for a bedding system that does not require starting, stopping, or forward/reverse switching of conveyors during operation.

[Means for solving problems]

The operating method of the bedding system in the sintering apparatus according to the present invention is to install a damper operated according to the speed of the sintering machine at the outlet of the hopper from which the products fall from the sintering machine through the crusher and the filter. The damper is used to adjust the bedding feed opening degree so that the amount of raw material in the bedding hopper is always constant.

[Effect]

The hopper provided directly below the filter in this invention is
A damper installed at the bottom of this hopper adjusts the feed opening of the raw material bedding using an analog signal based on the speed of the sintering machine, so the GE yarn of the finished product that falls into this hopper is To maintain a constant raw material level in the bedding hopper while continuously feeding the system.

[*Example of invention]

FIG. 1 is a diagram showing the configuration of a bedding system in a sintering apparatus according to an embodiment of the present invention and an adjustment circuit for operating the apparatus based on this configuration, and shows (11 to 11) in FIG. 1(a).
! 51. (7) to (9) are the same or corresponding parts to the parts with the same symbols in FIG. 3 showing the conventional example. (27)
A hopper (28) is provided at the bottom of this hopper (27) to accommodate the products falling from the screen (5), and a left and right outlet (27a) is opened by rotation of a motor.

(27b) is a damper that opens and closes the sintering machine (29).
) is detected, and this detected speed is, for example, 4 to 2 (1 mA
(aO) is the output signal of this tacho generator (29), (31) is an opening control circuit for operating the damper (28) based on the output signal (30), 32) and (33) are relays that open and close according to the output of this opening control circuit (31);
34) and (35) are relays (32), (33)
These are the respective contact points.

In the bedding system apparatus according to the present invention having the above-described configuration, the main raw material is supplied from the charging hopper (1) to the sintering machine (2), passes through the cooler (3), and reaches the crusher (4). is the same as the conventional example, but this crusher (4
), for example, the speed of the sintering machine (2) increases and the product falls from the bedding hopper (9).
), as more raw materials are required to be stored in the container,
The tacho generator (which detects the speed of the sintering machine (2)
29), the output signal (
30) When the value increases and the opening control circuit (31) is activated, for example, the relay (32) is energized and the contact (34) is turned ON, the damper (28) is rotated counterclockwise by the motor [17]. The opening degree of the right outlet (27b) of the hopper (27) increases, and the raw material is fed to the bedding hopper (9) via the bedding conveyors (7) and (8). To increase.

Also, contrary to the above, when the speed of the sintering machine (2) decreases,
The value of the output signal (30) of the tacho generator (29) decreases to excite the relay (33), and the contact (35) turns on, causing the damper (28) to rotate clockwise. ) increases the opening degree of the left outlet (27a), the product feeding side increases, and the feeding of the bedding raw material to the bedding hopper (9) decreases, and the sintering machine (2) The bedding hopper (
9) The bedding material contained in is always maintained at a constant level.

Figure 2 shows the speed of the sintering machine (2) in the above operation, that is, the output signal (30) value of the tacho generator (29) and the counterclockwise opening of the damper (28), that is, Jul! It is a diagram showing an example of the relationship with the feed opening.

In the above embodiment, the case where there is one sintering machine (2) has been described, but it is possible to accommodate products fed from a plurality of sintering machines (2) in one hopper (5), This hopper (5
) can also be operated by operating the damper (28) provided at the bottom of the damper (28), the same effect as in the above embodiment can be obtained.

〔Effect of the invention〕

As explained above, this invention stores the product fed from the sintering machine in a hopper, operates the damper provided at the bottom of the hopper, and feeds the bedding material according to the speed of the sintering machine. Since it is configured to adjust the feed amount, there is no need to start, stop, or switch between forward and reverse operation of conveyors during operation, and there is no risk of mechanical shock to the equipment, making it stable with simple and inexpensive control means. This has the effect of making it possible to operate the bedding system in a controlled manner.

[Brief explanation of drawings]

FIGS. 1(&) and (b) are block diagrams showing a bedding system of a sintering apparatus according to an embodiment of the present invention, and FIG. 2 is a diagram showing the relationship between the opening of the sintering machine and the damper in FIG. A line diagram showing the relationship, FIG. 3 is a configuration diagram showing an example of the configuration of a conventional bedding system, and FIG. 4 is a relay circuit diagram for operating the device having the configuration shown in FIG. 3. In the figure, (1) is the charging hopper, (2) is the sintering machine, (
71° (8) is a bedding conveyor, (9) is a bedding hopper, (27) is a hopper, and (28) is a damper. Note that the same reference numerals in the figures indicate the same or corresponding parts. Agent Patent Attorney Masatoshi Sato (b) Figure 2

Claims (1)

[Claims] In an apparatus for supplying raw materials onto a sintering machine from a charging hopper and a bedding hopper, and storing a part of the product fed through the sintering machine in the bedding hopper via a conveyor, A hopper for storing the product sent through the sintering machine, and a damper at the outlet of the hopper that operates according to the speed of the sintering machine, and when the speed of the sintering machine increases, the bedding of the damper A method of operating a bedding system in a sintering apparatus, characterized in that the level of the bedding material fed through the conveyor and stored in the bedding hopper is kept constant by increasing the feeding opening.