JPH02293515A - Dust supplying crane control device - Google Patents

Abstract

PURPOSE:To facilitate to get a uniform quality of dust by controlling a distribution of dust quality. CONSTITUTION:A crane control device 4 is composed of a dust quality discrimination mechanism 5 and a dust distribution control mechanism 7. The dust quality discriminating mechanism 5 may judge whether the dust is one around a surrounding area, dust after continuous holidays, dust after Sunday and further judges whether a weather is rainy or not. If both conditions are not satisfactory and a condition of better dust or some other conditions are simultaneously applied, it is judged that the dust quality is 'normal' and in case that more than the former conditions are simultaneously applied, it is judged that the dust quality is poor. After a characteristic of dusts carried by a collecting car 1 is estimated, its information is delivered to a dust distribution control mechanism 7. The dust distribution controlling mechanism 7 has positions X, Y and Z within a dust pit 11 of a supplying crane 2 inputted. The dust distribution control mechanism 7 has a dust distribution data base 9 in regard to dust quality and then the dust distribution data base 9 is held as a program data corresponding to the actual dust pit 11. The dust collecting car 1 is guided to a proper feeding door and feeds dusts into the dust pit 11. The dust distribution control mechanism 7 may correct the dust distribution data base 9 in response to the fed dusts.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a garbage supply crane control device for controlling the operation of a garbage supply crane installed in a garbage incineration facility.

[Conventional technology]

The movement of garbage in the garbage incineration facility will be explained using Fig. 5. Garbage collected from the collection area is transported by collection vehicle 1,
It is supplied to the garbage pit 1l. The garbage 3 in the garbage pit 11 is supplied to the garbage feeder 12 by the supply crane 2 as needed.

The garbage from the garbage feeder 12 is sent to the incinerator 14 via the dust collector 13 and is incinerated.

Garbage storage 11 is provided because garbage collection is carried out at a specific time, but garbage incineration time is long, and for temporary storage during inspection and collection of incinerator 14.
The ``Structure Guidelines for Waste Treatment Facilities'' established by the Ministry of Health and Welfare stipulates that the amount of waste can be stored for two days or more.

The supply crane 2 uses free time other than the time when it supplies garbage to the garbage feeder 12 to uniformize the loading and unloading of garbage, and to average out the garbage quality (calorific value of the garbage, moisture, etc.). For this operation, the supply crane 2 is operated manually or counter-automatically. The non-automatic mode is a mode in which the process up to the point where the garbage is grabbed by the supply crane 2 is performed manually, and the subsequent process is performed automatically.

The purpose of making the waste uniform is to reduce temperature fluctuations in the incinerator 14 and achieve stable operation.

The capacity of the supply crane 2 is also specified in the above guideline, and it is supposed to use the same amount of time for mixing as for incineration, and the crane operation rate is 2/3, so for example, L
In a ot/h incinerator, uniform repacking can be done for 10 t/h of waste.

On the other hand, the time when the collection vehicles l come to transport garbage to the garbage pit 11 is concentrated in several hours during the day.

[Problem to be solved by the invention]

The reloading and mixing operation by the supply crane 2 is carried out during the daytime when the garbage is brought in by the collection vehicle 1, and in response to this, it is necessary to move the garbage accumulated near the loading entrance to another location in the garbage pit 11. This will be carried out at night when there is no collection vehicle 1.

Large continuous furnaces that operate continuously 24 hours a day have personnel available even at night, so sufficient reloading and mixing operations can be carried out and the quality of waste can be leveled out.

However, in a semi-continuous reactor that is not operated for 8 to 16 hL per day, the collection vehicle 1 is used for most of the operating time, so the reloading and mixing operations of the supply crane 2 are sufficient to homogenize the waste quality. Currently, it is not possible to carry out this method, and the uneven supply of waste is a factor in unstable operation.

In addition, areas where semi-continuous furnaces are installed are generally local cities, but in these areas, the quality of waste is poorer than the waste generated in urban centers because combustible materials are incinerated in-house. It is characterized by a large difference in waste quality between the two, and it can be said that the need for uniformity of waste quality during incineration is higher in semi-continuous furnaces than in continuous furnaces.

In addition, the transshipment and mixing operations by the supply crane 2 do not have a specific target value, and are carried out based on the crane operator's appropriate judgment, so there is also the problem of a lack of reliability.

SUMMARY OF THE INVENTION An object of the present invention is to provide a garbage supply crane control device that eliminates the drawbacks of the above-mentioned prior art and makes it easier to equalize the garbage quality by managing the distribution of the garbage quality.

[Means to solve the problem]

The above purpose is to estimate the waste quality, which is evaluated by the calorific value, moisture content, etc. of the waste, from the waste collection area, waste collection day, waste collection date, weather, etc. using the waste supply crane control device used in waste incineration equipment. Based on the waste quality judgment structure that is used to determine the waste quality, and the waste whose quality has been determined by this waste quality judgment mechanism is moved and removed by the supply crane, and also based on the estimated waste quality due to the addition of waste due to garbage collection. This is achieved by having a garbage distribution management mechanism that grasps and manages the garbage quality distribution in the garbage pit.

[Effect]

The quality of the garbage brought into the garbage pit can be determined based on conditions such as the collection area, collection date, weather, etc., so the garbage carried into the garbage pit can be managed based on the quality of the garbage.

Moreover, since the garbage in the pit is moved by a supply crane, the movement and reloading and mixing status of the garbage can be managed from the amount of movement of the crane in the X, Y, and Z directions.

In this way, the garbage quality distribution within the garbage pit can be managed,
By displaying the distribution of garbage in the garbage pit and providing guidance on the optimal mixing method to the crane operator, it is possible to supply the type of garbage required by the incinerator with the minimum necessary amount of garbage reloading. can.

[Embodiments of the invention]

FIG. 1 shows the connection relationship of the crane control device according to the present invention.

The crane control device 4 includes a garbage quality determination mechanism 5 and a garbage distribution management mechanism 7. For the former, the weather information is entered manually from the vehicle number input device 6 of the collection vehicle 10. Since the collection vehicle 1 generally measures the amount of garbage collected, it is easy to read the vehicle number at this time.

The garbage quality determining mechanism 5 determines the quality of the garbage according to the flowchart shown in FIG.

That is, whether it is garbage in the surrounding area (step SL), after a consecutive holiday (step S2), after a Sunday (step S3),
Determine whether the weather is rainy (step 34), etc. If none of the above is true, the quality of the waste is good, if several conditions overlap, the quality of the waste is normal, and if more conditions overlap, the quality of the waste is poor. (Step S5).

The reasons for the determination in FIG. 4 are as follows.

As mentioned above, the quality of waste in the surrounding area is poor. After New Year holidays and consecutive holidays, the amount of garbage increases and the quality of the garbage decreases. This is because there are more opportunities to eat together as a family, and the proportion of kitchen waste increases.

After Sunday, the quality of the waste will be poor for the same reason.

Also, when the weather is rainy, the quality of the garbage deteriorates as the garbage that is put outside absorbs moisture.

The reasons for determining waste quality listed here are given as examples, and there is no problem in adding more criteria.

Furthermore, although the method of determination is shown as an example in the flowchart of FIG. 3, it is also possible to use a method of making the determination in the form of rules and using an inference mechanism.

The collection vehicle database 8 determines whether the garbage is from the surrounding area or not, based on the collection vehicle database 8.
If the collection vehicle number can be determined from information such as which area the vehicle collects from, the collection area can be identified. In addition, the built-in clock and calendar can be used to determine the end of consecutive holidays and the days of the week, and the weather can be determined by input from the operator.

Once the properties of the garbage carried by the collection vehicle 1 are estimated as described above, the information is passed to the garbage distribution management organization 7.

The garbage distribution management mechanism 7 is located in the garbage pit 1 of the supply crane 2.
1 position X, Y. Z is input.

Here, X is the deviation from the origin in the longitudinal direction of the pit, Y is the same deviation in the shorter direction, and Z is the deviation of the packet of the supply crane 2.

Further, the garbage distribution management mechanism 7 has a garbage distribution database 9 that represents the distribution of garbage quality within the pit. The garbage distribution database 9 is divided into, for example, a mesh shape as shown in FIG. 3, and is held as computer program data as three-dimensional data corresponding to the actual garbage pit l1.

Although the size of the mesh may be arbitrary, it is appropriate to have a size approximately equal to the packet volume of the supply crane 2.

The collection vehicle 1 is guided from the piled up state of the garbage pit 11 to an appropriate loading door, and throws garbage into the garbage pit 11 from there. At this time, the garbage distribution management mechanism 7 corrects the garbage distribution database 9 in accordance with this.

Even when garbage is supplied, transshipped and mixed, the garbage distribution database 9 is corrected accordingly.

When mixing different types of waste, various methods can be considered for setting the quality of the mixed waste, but there is no particular problem in simply determining the weighted average.

Regarding the quality of waste, since waste is an aggregation of various substances, it is impossible to measure it online, and as shown in the example, there is no practical problem in classifying it into three levels.

〔Effect of the invention〕

As explained above, according to the present invention, it is possible to manage what type of garbage is distributed in the garbage pit, so that it becomes easy to equalize the garbage quality.

Furthermore, when the temperature of the waste incinerator drops, it is possible to supply waste with a high quality of waste, and in the opposite case, it is possible to supply waste with low quality, which contributes to stable operation.

[Brief explanation of the drawing]

FIG. 1 is a connection diagram of an embodiment of the garbage supply crane control device according to the present invention, FIG. 2 is an explanatory diagram of a database showing the relationship between collection vehicles and collection areas, and FIG. 3 is a conceptual diagram of garbage quality distribution. FIG. 4 is a flowchart showing the procedure for determining waste quality, and FIG. 5 is a configuration diagram of the waste supply system. 1... Collection vehicle, 2... Supply crane, 5... Garbage quality determination mechanism, 7... Garbage distribution management mechanism, 11... Garbage pit. Figure 4

Claims (3)

[Claims] (1) The garbage supply crane control device used in garbage incineration facilities estimates the garbage quality, which is evaluated by the calorific value and moisture content of the garbage, based on the garbage collection area, garbage collection day, garbage collection date, weather, etc. Based on the garbage quality determination mechanism and the garbage whose quality has been determined by this garbage quality determination mechanism is moved and removed by the supply crane, and also based on the estimated garbage quality based on the addition of garbage by the garbage collection truck, A garbage supply crane control device characterized by being equipped with a garbage distribution management mechanism that grasps and manages the distribution of garbage quality in a pit. (2) The waste supply crane control device according to claim (1), wherein the waste distribution management mechanism supplies waste of appropriate quality in response to the rise and fall of the temperature of the incinerator. (3) The waste according to claim (1), wherein the waste distribution management mechanism provides guidance to a crane operator or automatically executes a waste supply crane operation for uniformizing the quality of waste in the waste pit. Supply crane control device.