JPS5957831A - Reclaimer spray system - Google Patents

Abstract

PURPOSE:To reduce consumption of spray water by varying the opening of a flow regulating valve in accordance to the slewing speed or angle of boom when requiring spray. CONSTITUTION:A slewing gear 25 in a reclaimer will rotate a synchro-resolver 27 through a small gear 26. The produced signal is digitized by a synchro-digital transmitter 28 while the spray area is detected by said signal and preset spray conversion pattern 29 and provided to a spray solenoid valve selection circuit 30. Said circuit 30 is provided with a load-off signal to show whether or not a load is mounted on the boom conveyor from a scale 31 on the boom conveyor. On the basis of said input informations, spray solenoid valves 15-22 are opened/closed as required.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in water sprinkler systems installed in packet wheel reclaimers, stacker reclaimers, and the like.

As shown in Figure 1, the reclaimer's watering system is (1)
Open pile/ξile (5) from both sides of the packet wheel (4)
For (see ()), (Ill packet wheel (
For the chute part of 4) (see (2)), for the chute part of (I) boom conveyor (6) D:3)#light)
, 055 locations are the main targets for watering.

The water sprinkling amount f1q of the conventional glue crepe is set to 41/4 so that water can be applied to each of the above-mentioned watering locations individually or by selecting a plurality of Drs at the same time. However, is Nori Crepe a dog these days? There is a tendency towards quantumization. In addition, the rotation speed of the zoom is variable depending on the Ji□ rotation angle, such as 2x speed or 6x speed. It has become necessary to carry out regular watering and reduce the amount of water used. However, with the conventional method, the amount of water sprinkled on the field A11 pile does not change depending on the swing speed of the boom, and in the low speed range where the swing angle is small and the beam swing speed is slow, excessive watering may occur. , giving 3171 minutes of moisture to the load. As a result, the load may become sticky or stick to the chute, causing the chute to become clogged, causing problems in transportation. On the other hand, in high-speed ranges where the turning angle is large, watering is insufficient, and it is difficult to expect dust prevention effects, so the reality is that watering is not always effective. In addition, watering is manually controlled throughout the entire period of the dispensing machine, and during the dispensing machine, during inching operation, backward operation, or when the boom is raised, the watering system is controlled in 8 waves. There is a lot of waste, such as sprinkling water even when the sharpener is not in use.
The most troublesome part of the story was the fact that I had to use all my nerves to drive the crepe.

The present invention is intended to address the above-mentioned problems, and includes a Nagetsu style 9ji+ valve installed in the middle of the piping leading to the water sprinkler i't,
When watering is necessary, the control device controls b11 to change the opening degree of the volume control valve according to the swing speed or swing angle of the boom, and to close the flow control valve when watering is not required.
This 11 crepe water system is characterized by being equipped with 1t, etc., and its purpose is to prevent trouble and dust generation during the transportation of cargo. Water can be extinguished and fJi can be reduced. Another object of the present invention is to provide an improved watering device for crepe that can be operated easily.

Next, the glue crepe watering device of the present invention will be explained with reference to an embodiment shown in FIGS. 2 to 6. Device,
(2) is the TO to the chute part of the packet wheel (4)
, water system, (3) is the watering system for the chute of the boom conveyor (6), (7) is the water supply point on the ground, and the reclaimer is connected to the water supply point on the ground (by connecting the reclaimer's hose (8) to the water supply point). Connect to receive water. During watering, the hose (remains connected). The hose (8) is wound around the hose (00) via a guide roller (9), and the hose (8) is wound as the reclaimer moves. , Extrusion is torque morph 01)
It is now possible to do this freely.

Water sent via hose (8) is booster pump 0
2), the water is stored in the watering tank OJ, and the water is fed under pressure, resulting in each watering amount M(1)fil(2)(31
By opening and closing the solenoid valves 09 to (24) installed in front of the water sprinkler system (21f31), water is discharged from each sprinkler device (In (21f31). Also, (23) is the relief valve for shut-off operation of the watering pump, and 0 is the water surface of the tank. This is an automatic start/stop device that starts and stops the pump α2 according to the rise and fall of the pump.Furthermore, Figure 6 shows an example of the movement of the boom relative to the pile when the zoom length is 55 m in a reclaimer. .

In this case, a pile with a trapezoidal cross section is excavated in four excavation stages.
reactor. V) The turning angle varies from 17.6 degrees to 56 degrees at the top stage. from 12.7 degrees to 63 degrees in the second stage, from 8 degrees to 76.5 degrees in the sixth stage, and from 76.5 degrees in the fourth stage.
degree to 81.6 degrees. Figure 4 is a control diagram for the boom rotation speed of a reclaimer that dispenses a fixed amount. It shows how the speed changes continuously according to double speed, double speed, six times speed, and /cO8θ (where θ is the turning angle).

When the reclaimer turns from 7 degrees to 81.6 degrees, it will turn to 81.6 degrees.
Turning from 1.6 history to 71W while decreasing speed,
The same operation is repeated starting from the 7th time. Further, FIG. 5 shows the operation mode during reclaimer discharging work.

During the operation, the reclaimer repeats turning payout, inching forward, and turning payout in sequence, and when the J optical device pays out, it moves backward, further lowers the boom, and then begins turning eK and step payout operations. Repeat the following operations to pay out all the way to the bottom,
Once the entire load has been discharged, raise the boom and operate the top tier to rotate and discharge. During this period, the watering equipment (]) (11 and (2) are only during the turning dispensing period,
The water sprinkling device (3) sprinkles water while the load is on the boom conveyor, that is, while the load is being carried by the conveyor even after the turning operation is completed, and water is sprinkled continuously while the load is interrupted. Moreover, FIG. 6 is an automatic control system diagram of the water sprinkler device. In this control device, the reclaimer's swing gear device (251 has a small gear (
A synchronized resorno earthquake (,!7) is rotated via a synchronized resorno earthquake (,!7), and the obtained I L1 is digitized using a synchronized digital oscillator (281), while this signal and a preset watering amount conversion pattern ( 29) detects the sprinkling area and inputs it to the watering solenoid valve selection circuit C3til.This selection circuit C30) has information on whether or not there is a load on the boom conveyor from the measuring device Oυ of the boom conveyor. A back cut signal is also input. Based on this input information, the watering solenoid valves 0 - (2 are opened and closed as necessary (measuring device C3)) can be replaced with a simple back cut detector to have the same effect. FIG. 7 shows another embodiment of a control device in which a limit switch is placed at a predetermined turning angle position to set each turn. (3: Kaikan C1
51... is in the four quadrants where the reclaimer revolves!
i) arranged according to a predetermined swivel angle position; At the same time as receiving the out-of-stock detection signal from the scale (tl) on the zoom conveyor, the reclaimer's rotating ring (+G) is activated.
The signals from the limit switches placed around the watering solenoid valve are input to the watering solenoid valve selection circuit, and according to each signal, the watering solenoid valve (Iω~ (221 selects) and outputs an opening/closing operation signal. be done.

Next, the operation of the water sprinkler device of the reclaimer will be explained. Watering the open pile (5) is performed to prevent dust from being generated from the pile surface during excavation. Therefore, the surface of the excavation ν
(It is necessary to spray water in proportion to the amount of water deposited. For this reason, the height of the excavation stage should be adjusted to 1111.
This is called the packet wheel (4)
The diameter of the hole is the diameter of the excavation stage. If the height of the excavation stage of the packet wheel (4) with a diameter of In addition, the chute of the packet wheel part and the nome cone are connected to the watering device 1 of the head chute of the ya part (I M 1
In M3), it is necessary to sprinkle water according to the volume of the load passing through.At this time, the reclaimer vt-boom rotation speed is changed and the payout fij is set to -V to -4-F. Therefore, with these water spray devices) 7, it is sufficient to spray water at a constant hf.For the boom conveyor chute section water sprinkling %: i f3), water is sprayed until the load scraped by the wheel section reaches the end. Because it is necessary to
It is necessary to determine whether there is a load on the boom and to start and stop water spraying. The water sprinkler i<i; of the present invention satisfies these requirements. In other words, the spraying of water at the filler section starts from the stage when the boom turns and starts discharging the load.
According to the water sprinkling amount conversion pattern 0 (g) of M, the water of "6" set according to the turning angle is automatically sprayed. At the same time, a certain amount of water is also sprinkled on the packet wheel chute.

At the chute section of the boom conveyor head 8, after the load has been sent onto the reconveyor, it waits for a loading signal from the measuring device C3υ located at the center of the boom, that is, the pile section and the wheel chute. Watering will begin with a slight delay from the start of watering. The amount of water sprinkled in this area will also be constant. During turning and dispensing, the amount of water sprinkled on the /ξ plane is changed according to the preset turning angle, and when the speed becomes zero, the water sprinkling is stopped. When the water sprinkling on the pile surface is stopped, the water sprinkling on the wheel chute is also stopped at the same time. Water spraying on the boomcon bay chute section, the zoomcon is stopped after the lack of load on the bay is detected. In other words, even if the swing operation is stopped, there is a time delay until the load scooped up at that point σ) is carried by the boom conveyor and reaches the conveyor head chute, so during that time Continue watering and stop watering after the load is interrupted.

The watering device for glue clay 1 of the present invention is as described above.
; Dust generation can be prevented with a minimum amount of water.

In other words, the amount of water sprinkled on the pile surface is constant with respect to the surface area of /g. Pile surface area per minute through which the end passes m" 7m1xl and ζ: Required amount of water per unit area - e/m' is constant, so it is proportional to the zoom rotation speed /Ljsm/min.In other words, when the seam rotation speed is 1x speed, 2x speed, and 6x speed, the required watering amount is It has to increase by 1, 2, 6 times per minute...
The bones only received a constant amount of watering regardless of changes in rotation speed. When performing 6x speed control, the setting of σ) Iμ and watering amount is σ) 41 speed, which is 2.
It was considered most economical to determine the required amount of water for the entire turning range based on the speed. However, with this method, when excavating 1111 at 1x speed, the amount of water sprinkled is twice the required amount, and conversely, when drilling at 6x speed, the amount of water sprinkled is twice as much as the required amount, and conversely, when drilling at 6x speed, the amount of water sprinkled is 15 r. The required amount of water was not sprayed with enough force, and the dust generation prevention effect tended to be lacking. Furthermore, when the speed is 1x, water is sprinkled twice as much water as the water required per 1 time, so if
3) If the moisture that cannot be collected becomes excessive, the load may not be placed around the bucket, it may adhere to the chute, or it may adhere to conveyor parts such as pulleys and scrapers on the surface of the belt conveyor. However, in the water sprinkling device of the present invention, a small amount of water is sprinkled on the pile surface in a low water sprinkling area, and a small amount of water is
1' (more water is sprinkled in the sprinkled area, and more water is sprinkled in the multi-sprayed area), so the excessive watering and extremely Insufficient watering can be resolved (therefore, there will be no trouble during the transportation of loads, and the occurrence of watering can be effectively prevented.

Moreover, according to the watering device of the present invention, the total watering consumption; 14
can be reduced. That is, the boom length is 55 m, and the amount of force is OO.
13t,/h, boom speed minimum 15m/min.

Maximum 45 m/m1n (6x speed control) Water spraying with glue crepe: 11. The average amount is 28 t/h, but according to 11 of the present invention, the amount is 18.7 t/b.
V, and about 9 TON of Mercury is saved per hour. This is G, 1, the reclaimer operation time is usually 8
6 to 18 hours, the annual savings in water resources will be enormous.At the same time, the electricity consumption of the sprinkler pump (ii) will also be saved accordingly.

In addition, the water sprinkling device of the present invention has the following features: 1. As mentioned above, the furnace does not spray water unnecessarily, and the operation operation is made easier.In other words, with this water sprinkling device, watering is automatic when not during rotational dispensing. will be stopped. In other words, while moving forward or backward in Figure 5,
Alternatively, watering is automatically stopped during boom raising and lowering during stage change. Therefore, even when operating the reclaimer, which requires multiple operations, the operator can concentrate on operating the crepe without worrying about water consumption. is facilitated.

It is sufficient to use one valve for the flow control valves 05) to (20) whose opening degree is proportional to the meteorite (see Fig. 8).

In addition, in the embodiment shown in FIG.
Flow part in (] Ml): There are several control valves ((15) to (
20+), but this can be reduced to at least 1 as shown in Figure 9.
pieces (may be 15 pieces)

Alternatively, the sprinkler pump shown in FIG. 2 may be used as a pump with variable discharge t1, and the discharged air may be changed continuously and automatically in accordance with the swing angle or swing speed of the boom.

The present invention has been described above with reference to one example, but of course the present invention is not limited to such an embodiment, and various modifications of the design can be made without departing from the spirit of the present invention. It is meant to give.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the water sprinkling part of the water-reduced joint of the beam crepe, Fig. 21 ¥1 is a side view showing an embodiment of the reclaimer water sprinkling device according to the present invention, and Fig. 6 (1) is the zoom length is 5
Side view showing the pile in case of 5 m, 31st MI (If
) is a plan view showing the swing angle range when the boom length is as above, Fig. 4 is a boom swing speed control diagram, Fig. 5 is an explanatory diagram showing the operation mode during beam crepe dispensing work, Fig. 6 is a system diagram showing an example of the control device ji\i, No. 7
Figure 8 is a system diagram showing another example of the control device, Figure 8 is an explanatory diagram of the operation of the flow control valve, and Figure 7A9 is a side view showing another example of the flow 4N: control f14 valve. il+ (2) to 3)... watering device, (15) to Q4.
・・Flow control valve, (2 pieces) ~ C11)t or Q-)) ~
I) (Kari ~ (7)... Control device? I. In the case of Figure 3 L = 55777, it is the case that #. Time is ambiguous. Quantity signal type W detective 11 selection 1n Tsurubenga 9 (
2) Procedural amendment (method) March 9, 1980 Kazuo Wakasugi, Commissioner of the Patent Office1, Indication of the case Patent Application No. 165008 of 19822, Title of the invention Reclaimer watering device: (, Relationship with the person making the amendment Patent applicant name (620
) Mitsubishi Heavy Industries, Ltd. 4, Sub-Agent's Specification (1) Page 13, lines 10 to 13, ``, Figure 3 (1) shows the plane showing the turning angle. figure,"
Correct as follows. Figure 3 is a plan view showing the pile when the boom length is 55117L and the swing angle range when the boom length is as above. Correct it as follows. Fang 3 (I) with Kenrotsu Kengo

Claims (1)

[Claims] A view of the Nia control valve installed in the middle of the piping leading to the water sprinkler,
A control device is provided to change the opening of the flow rate control valve in accordance with the swinging speed or swing angle of the boom when watering is necessary, and to close the flow rate control valve when watering is not needed. Features a crepe watering device.