JP2630697B2 - Waste treatment equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refuse treatment apparatus used for incinerating municipal waste.

[0002]

[Prior art and its problems] Municipal waste includes combustible waste such as paper and cloth and non-combustible waste such as empty cans and bottles. After that, the combustible waste is directly introduced into the waste pit 2 from the platform 5, which is the waste inlet, by the waste collection vehicle 6 as shown in FIG. The volume of the refuse pit 2 is about 3000 cubic meters, and usually stores refuse for 5 to 6 days.

[0003] The waste put into the waste pit 2 is then transferred from the waste pit 2 by the crane 8 and thrown into the hopper 3. This operation is performed by the operator directly watching the dust pit 2 from the control room 7 or watching the image from the monitor camera 10 mounted above the dust pit 2. The refuse introduced into the hopper 3 is supplied to the incinerator 4 and incinerated while being transferred from the upstream 9a to the downstream 9b of the incineration line 9. Although incineration of garbage uses oil only at the time of ignition, it is carried out by self-combustion.
Above the refuse must be burned continuously. Therefore, in order to burn the refuse in the incinerator 4 without extinguishing the fire, it is necessary to supply the refuse from the hopper 3 to the incinerator 4 according to the combustion state in the incinerator 4.

[0004] However, some of the garbage collected by the garbage truck 6 contains a large amount of moisture, while others do not. This is true for garbage collected on a fine day. The garbage collected on the day is very wet. Therefore, in the garbage pit 2, garbage pits containing a large amount of water and garbage with a small amount of water are irregularly distributed, and the garbage stored in the garbage pit 2 is directly put into the hopper 3 and incinerated. If it burns out quickly, the fire in the incinerator 4 goes out, and if the garbage contains a lot of water, the water will extinguish the fire in the incinerator 4 or even until the fire does not go out, as shown in FIG. As in the case of the flame f, the combustion state was uneven and incomplete combustion occurred.

[0005] Therefore, in order to solve this problem, the waste stored in the waste pit 2 is transferred to the holding portion 1 of the crane 8.
Although the water in the garbage in the garbage pit 2 is made uniform by agitation by 2 ′, it is difficult to judge how much water is actually contained in the garbage with the naked eye or the image on the monitor 10.

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has been made to efficiently and uniformly equalize the water content of waste stored in a waste pit. It is an object of the present invention to provide a refuse treatment device that is constant.

[0007]

The object of the present invention is to provide a refuse transporting means above a refuse pit, wherein the refuse transporting means is provided with a weight detecting means and a refuse holding means. In a refuse treatment device in which the holding angle of the garbage holding means changes, an open angle detecting means for detecting the holding angle is provided, and the specific gravity of the garbage currently held is calculated from the detection output and the output of the weight detecting means. This is achieved by a refuse treatment apparatus characterized by the above.

[0008]

[Function] The weight detection means and the dust pinching means are provided in the dust conveying means, and the open angle detecting means for detecting the pinching angle of the dust pinching means is provided, so that the weight and volume of the dust pinched by the pinching means can be determined. , Specific gravity can be calculated. This makes it possible to know the amount of water contained in the refuse held by the holding means.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a waste disposal apparatus according to an embodiment of the present invention will be described with reference to the drawings. The same components as those of the conventional example are denoted by the same reference numerals, and the description of the portions of the conventional example that are not sufficiently described will be supplemented.

FIG. 1 shows an entire refuse treatment apparatus 1 according to an embodiment of the present invention. Garbage input door 1 on platform 5
6 is provided, and the garbage truck 6 is a platform 5
When entering, the refuse input door 16 is opened.

The crane 8 moves the dust holding section 12 along the X axis in the drawing.
The dust can be freely moved in the Y-axis direction and the Z-axis direction, and the dust holding unit 12 causes the hopper 3 to convey the dust in the dust pit 2. The refuse introduced into the hopper 3 is supplied to the incinerator 4 and incinerated while being transferred from the upstream 9a to the downstream 9b of the incineration line 9. In the incinerator 4, the transfer speed of the refuse on the incineration line 9 can be changed according to the combustion state of the refuse.

FIG. 2 shows a holding portion 12 of the crane 8, which is hung down with a load cell 14 interposed therebetween.
It is possible to measure the weight of the holding portion 12 and the dust held by the holding portion 12. The load cell 14 is a known load cell, and the control room 7 can immediately know the weight W of dust only by subtracting the weight of the holding portion 12 from this value.

Further, a potentiometer 13 is attached to the bucket 15 of the clamping section 12, and the potentiometer 13 can measure the clamping angle α of the bucket 15, and it is possible to know how many times the bucket 15 is opened. With this, if a lot of garbage is caught in the bucket 15,
As shown in FIG. 2, the clamping angle α of the bucket 15 increases, and if the amount of dust caught between the buckets 15 is small, the clamping angle α ′ of the bucket 15 decreases as illustrated in FIG. As described above, there is a correlation between the pinching angle α of the bucket 15 and the volume of the dust. In the control room 7, the volume V of the dust pinched by the bucket 15 is immediately known from the pinching angle α of the bucket 15. Can be.

The refuse treatment apparatus 1 according to the embodiment of the present invention is configured as described above. Next, this operation will be described.

When the garbage collection vehicle 6 arrives at the platform 5 as shown in FIG. 1, the garbage input door 16 is opened, the garbage collection vehicle 6 is attached to the garbage input position 5a, and the garbage is input.

By repeating this process several times, garbage accumulates in the garbage pit 2. However, since the garbage is randomly charged from the charging position 5a, the garbage pit 2 has a lot of wet or dry garbage. Garbage is scattered.

The waste put into the waste pit 2 is incinerated in the incinerator 4, but as described above, the waste is made uniform in moisture so that the fire in the incinerator 4 is not extinguished.
It is thrown into. Therefore, the worker in the control room 7 uses the crane 8 to stir and equalize the waste in the waste pit 2. In this case, the operator must determine the amount of water contained in the dust by the naked eye or the image on the monitor 10, but it is difficult to actually determine the amount by using this.

As shown in FIG. 2, in the present invention, the crane 8 is used.
The volume V of the dust held by the holding unit 12 can be known by the potentiometer 13, and the weight of the dust held by the holding unit 12 can be known by the load cell 14. Therefore, from these values, the specific gravity of the waste (specific gravity: G = W
/ V) can be calculated. Naturally, the specific gravity of the garbage increases when the garbage contains a large amount of moisture, and decreases when the garbage does not contain a moisture. In addition, from experience and statistics, it can be seen how much water is contained in the garbage by the magnitude of the specific gravity. That is, when the worker mixes and homogenizes the refuse in the refuse pit 2 with the crane 8, the refuse in the area with a large specific gravity is mixed with the refuse in the area with a small specific gravity, and the refuse in the area with a small specific gravity is mixed with the specific gravity. If the waste is mixed with the waste in the large area, the moisture in the waste in the waste pit 2 is made uniform. Thus, the worker can efficiently and surely equalize the waste without mistaking how much moisture is contained in the waste in the waste pit 2.

Next, the refuse whose moisture has been made uniform in the refuse pit 2 is thrown into the hopper 3 by the crane 8. In this case, for example, even if there is little time to stir the refuse in the refuse pit 2 and there is a suddenly large portion containing a large amount of water, the operator does not put it in the hopper 3 and compares it. It can be mixed with refuse in the area of low specific gravity that is dry.

Further, the average value of the specific gravity of the refuse increases when rainy days continue and decreases when sunny days continue. The worker calculates the average value of the specific gravity of the refuse after stirring and homogenizing the refuse in the refuse pit 2, and determines the transfer speed of the refuse in the incineration line 9 of the incinerator 4 based on the average value of the refuse specific gravity. Good. That is, if the average value of the specific gravity of the refuse is large, it is moist refuse as a whole, and the refuse is not easily burned. Therefore, the transfer speed of the refuse in the incineration line 9 is reduced, and if the average value of the specific gravity is small, the refuse is entirely dried. As it is garbage and garbage is easy to burn,
What is necessary is just to increase the transfer speed of the incineration line 9.

As described above, in the embodiment of the present invention, the refuse supplied to the incineration line 9 of the incinerator 4 has a uniform moisture content, and the refuse of the incineration line 9 is determined by the average value of the refuse specific gravity. Because you can know the setting value of the transfer speed,
As in the case of the flame F shown in FIG. 1, the combustion rate becomes substantially constant, and the fire does not disappear on the way.

Although the embodiments of the present invention have been described above, the present invention is, of course, not limited thereto, and various modifications can be made based on the technical concept of the present invention.

For example, in the above embodiment, the waste in the waste pit 2 is stirred and homogenized before being introduced into the hopper 3, but the invention is not limited to this, and the waste introduced into the waste pit 2 may be directly introduced into the hopper 3. Good. However, in this case, it is necessary to change the transfer speed of the waste in the incineration line 9 according to the specific gravity of the waste put into the hopper 3.

In the above embodiment, the potentiometer 13 is used to measure the holding angle of the holding section 12, but other measuring instruments can be used as long as the holding angle of the holding section 12 can be measured.

[0025]

[Effect of the Invention] By knowing the specific gravity of the garbage held by the holding portion of the crane, it is possible to know how much water is contained in the garbage, and thereby the worker who agitates and equalizes the garbage can be used for the garbage. The garbage can be efficiently and reliably equalized without mistaking how much moisture is contained in the garbage in the pit. Further, since the amount of moisture contained in the refuse supplied to the incinerator can be known, if the refuse is transferred accordingly, the burning rate becomes almost constant and the fire does not go out in the incinerator.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of a waste disposal apparatus according to an embodiment of the present invention.

FIG. 2 is a front view of the crane of the refuse treatment apparatus when a clamping portion of the crane nips a large amount of dust.

FIG. 3 is a front view of the crane of the refuse treatment apparatus when a holding portion of the crane holds a small amount of dust.

FIG. 4 is a schematic sectional view of a waste treatment apparatus according to a conventional example of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Refuse disposal device 8 Crane 12 Holding part 13 Potentiometer 14 Load cell

Claims (1)

(57) [Claims] 1. A garbage transport means is provided above a garbage pit, the garbage transport means is provided with a weight detecting means and a garbage holding means, and the garbage angle of the garbage holding means changes according to the volume of the garbage held by the garbage. In the processing apparatus, an open angle detecting means for detecting the holding angle is provided, and a specific gravity of the currently held waste is calculated from the detection output and the output of the weight detecting means. Processing equipment.