JPS59194906A - Throw-in chute for air transporter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a charging chute in a pneumatic transport 9A station.

Garbage generated from buildings, housing complexes, etc. is collected by pneumatic conveyance equipment.In other words, as shown in Figure 1, garbage 1 is thrown into input chute 2, It is crushed by a crusher 5 installed at the top and temporarily stored in a discharge valve 4H.

Then, based on a certain operation cycle, the discharge valve 4 is opened, and the waste is pneumatically transported to the collection center via the air transport pipe 3, where it is collected by a separation unit 1t16 and stored in a storage tank W4. 7 is stored. Air is also sucked in and released by the blower 8. However, due to recent work and the diversification of garbage, garbage such as iron lumps, concrete lumps, futons, etc. are often thrown into input sheet 2, and such heavy items and bulky items are It is not suitable for pneumatic transport, and there has been a problem that it stagnates inside the pneumatic transport pipe and causes blockage. In addition, the amount of garbage generated increases,
Conventional pneumatic transport equipment has required correspondingly larger equipment. However, when the equipment is enlarged,
Problems included increased equipment costs and power consumption.

In order to deal with these problems, a crusher is installed in the input chute (see, for example, Japanese Utility Model Publication No. 52-21581),
A technology has been proposed in which garbage is crushed and then supplied to a pneumatic transport pipe, and garbage that cannot be transported by air is detected by overload on the crusher and taken out of the machine (for example, Japanese Patent Publication No. 58-7561) reference). However, in this conventional example, garbage that cannot be transported by air is manually taken out from the top of the crusher, which is labor-intensive.
In addition, there was a risk of getting your hands caught in the crusher.

Therefore, an object of the present invention is to improve the garbage collection capacity without increasing the size of the equipment, and to automatically and safely take out garbage unsuitable for pneumatic transportation. There is a shoot to offer.

According to the present invention, there is a 1J in the air conveying pipe, which is composed of a charging chute connected via a volume valve, and a pair of bladed rotors provided inside the charging chute and rotating in opposite directions. An axial shearing crusher, an input suppression valve installed on one side of the crusher, and a side wall of the input sheet located below the crusher, with the lower edge being a fulcrum. The rotor of the crusher is provided with a movable take-out shaker 1- which rotates toward the inside of the input shaker, and a detection means for detecting an overload applied to the crusher. is rotated by a predetermined positive number of rotations, avoiding reverse rotation, and then rotating forward again, and when an overload is detected by the detection means described in Bo. A control device is provided inside the chute to control the rotor of the crusher to rotate in reverse.

Therefore, during normal operation, the waste thrown into the input chute is temporarily stored in the input restraint valve 10, and the garbage thrown into the input chute is temporarily stored in the input
When the valve is heard, it falls onto the crusher, the rotor rotates, it is crushed, and it falls onto the discharge valve.

Then, the discharge valve opens and the air is introduced into the air transport pipe, where it is air transported. On the other hand, when the detection means detects an overload on the crusher, the rotor of the crusher repeats a predetermined forward rotation and reverse rotation. As a result, even garbage that is difficult to crush is gradually crushed. Then, the rotor of the crusher is rotated in the normal direction again.

At this time, if no overload is detected, the garbage is considered to have been crushed, and operation continues.

In addition, if overload is still detected at this time,
Since it is considered that the garbage is not suitable for pneumatic transportation, such as concrete walls and futons, the input suppression valve is closed, the movable take-out chute is rotated into the input chute, and the rotor of the crusher is reversed. As a result, the dust falls downward from the side of the rotor, is guided to the movable takeout chute, and is taken out of the system. In this way, garbage unsuitable for pneumatic transportation can be detected and automatically removed, allowing work to be carried out efficiently and safely.

When carrying out the present invention, a movable scraper is installed on the side of each rotor of the crusher, and as mentioned above, a movable scraper is installed from each rotor to take out waste unsuitable for air transportation out of the system. It is preferable to separate the rotors so as to form a space on the side of each rotor through which dirt can pass.

Further, as a detection means for detecting overload of the crusher, for example, one that measures the current, electric power, etc. in the drive device of the crusher can be used.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 6.

As shown in FIG. 2, an air transport pipe 12 is connected below the input chute 11. A υ1 outlet valve 14, which is opened and closed by a drive cylinder 13, is attached to a connecting portion between the input port 11 and the air transport pipe 12. At the end of the air transport pipe 12, a minute 1i11tll 115 is provided, a suction blower 16 for transportation air is attached to the top of the minute 11tl 115, and a storage tank for separated garbage is installed at the bottom of the minute 11 machine 15. 17 have been installed. Therefore, by opening the discharge valve 14 from the lower part of the input chute 11, the garbage falls into the air transport pipe 12, and the garbage falls into the air transport pipe 12 from the bottom of the input chute 11.
The separator 15 is transported by circulating air by 1 waer 16.
After being separated at step 6, it is stored in a storage tank 17. In this case, it is preferable that the drive cylinder 13 and the suction blower 16 that open and close the discharge valve 14 operate in synchronization with each other. Further, the suction blower 16 may be replaced by a feed blower provided at the other end of the air transport pipe 12.

In the present invention, a reservoir section 18 is formed in the middle of the input chute 11 in the shape of a tapered end, and the reservoir section 18 is equipped with an input suppression valve 20 that is opened and closed by a drive cylinder 19 . Further, : 21 is attached to the peripheral wall of the storage section 18 at the first level. Referring also to FIG. 3, a two-shaft shear crusher 23 is installed below the input suppressor 11 and the valve 20, and is comprised of a pair of rotors 22 and 22 having crushing blades on the outer periphery. This rotor 22.22 is
They are rotated in opposite directions by a drive device 24 such as a motor in response to a signal from the control device C, and the rotation is switched between a forward rotation direction (indicated by a solid line arrow in the figure) and a reverse rotation direction (indicated by a broken line arrow in the figure). It is now possible to do so. A movable scraper 25.25 is attached diagonally above each rotor 22.22 to scrape off dirt adhering to the rotor 22.22.

This movable scraper 25.25 is rotatable as shown by the arrow in the figure. A second leveling hole 26 is attached to the upper circumferential wall of the biaxial shearing crusher 23 to detect hanging of an object that causes an overload on the rotor 22.22. Furthermore, a television camera 27 is installed that shows the processing status of waste in the space above the -axis shear crusher 23. A predetermined space is provided between the twin-shaft shear crusher 23 and the discharge valve 14, and one side wall of the input chute 11 located in that area has an edge () which is rotated by the shear 28. A movable take-out chute 29 in the form of a wing plate is movably supported. This movable take-out chute 29 rotates as shown by the broken line arrow in the figure, and guides the garbage falling from the biaxial shear crusher 23 as shown by the solid line arrow in the figure to take it out of the machine. There is. Note that the rotation of the rotor 22.22, the rotation of the movable scraper 25.25,
The opening and closing of the input suppressing valve 20 and the rotation of the movable take-out chute 29 are controlled by the control device C according to the signal from the second level meter 26.

5 and 6 show preferred embodiments of the crusher implemented in the present invention. The rotational force of the motor 24 is transmitted to the chain sprocket device 31 via the reducer 30.
A pair of rotors 22, 22 are adapted to rotate in opposite directions. The casing 33 of this crusher has a drive cylinder 34 for moving the scraper 25 to the dotted line position 25a.
is provided.

Next, with reference also to FIG. 4, the operation of the charging chute 11 according to the present invention will be explained. First, when garbage is loaded into the input chute 11, the garbage is temporarily stored above the input suppression valve 20, and it is detected that a predetermined amount of garbage is stored in the first level cutter 21. Then, the drive cylinder 19 is actuated, the input suppression valve 20 is opened, and the garbage falls onto the twin-shaft shear crusher 23. Then, as the rotor 22.22 rotates in the normal direction (solid arrow in FIG. 3), the garbage is crushed by the rotor 22.22 and falls into the discharge valve 140. Discharge valve 1
The dust accumulated on the air transport pipe 12 is removed when the discharge valve 14 is opened by the drive cylinder 13 as described above.
It will fall into the air and be transported by air. And the fourth
As shown in the figure, the second level meter 26 is set to [1-ta 22.
When an overload on the rotor 22 is detected (step S1), the rotor 22.22 rotates in the reverse direction (step S2), and then rotates forward again after a predetermined period of time (step 83).Then, steps S2 and S3 are repeated, and the rotor 22.22 rotates in the forward direction. , reverse rotation is performed a predetermined number of times. By repeating the forward rotation and reverse rotation of the rotor 22.22, even garbage that is difficult to crush is crushed. Next, the rotor 22.22 is rotated in the normal rotation again (step 84).In step S4, the second level tears 2
If no overload is detected in step 6 and no overcurrent is flowing through the motor that drives the crusher, it is assumed that the garbage has been crushed, and normal operation continues. If the second level meter 26 is activated in step S4 and an overcurrent is flowing, it is 10- if there are many bundles such as futons, and the crusher can be crushed by operating it again. Therefore, by repeating the forward and reverse rotations a predetermined number of times through steps 81 to S3, the amount of objects causing overload on the rotor 22, 22 can be successively reduced. Therefore, when motor overload is detected while the second level meter 26 is detecting the level, the set number of repetitions of steps S2 and S3 is the same as when the second level meter 26 is not detecting the level. When an overload of the motor is detected in step S2 and S3, it is desirable to set the number of repetitions to a value larger than the number of repetitions set in S3. In this way, even if the preset steps S2 and S3 are repeatedly performed, if overcurrent still flows through the motor (step S5), the drive cylinder 19 is operated and the input suppression valve 20 is closed. (Step S6), and at the same time, the movable scraper 25 is rotated as shown by the arrow in FIG. 3 (Step 87). Then, the movable take-out chute 29 is rotated by the motor 28 as shown by the arrow in FIG. 3 (step Se). In this state, the rotor 22.22
is reversed (step 89), and at the same time, the discharge valve 14 is closed (step S).

This causes the dirt to fall downward through the space between the rotor 22.22 and the inner wall of the input shoe 1-11 formed by the upward folding of the movable scraper 25.25. Then, the garbage is guided by the movable cycoat 29 and taken out of the system (step $11). The garbage taken out in this way is that which has not been crushed by the repeated forward and reverse rotations of the rotor 22.
It is not suitable for pneumatic transportation such as futons. After taking out inappropriate garbage in this way, the movable take-out chute 29 and the movable scraper 25.25 are rotated to return to their original positions, the input suppression valve 20 is opened, and the rotor 22
．． 22 is rotated in the normal direction and normal processing operations are resumed.

As explained above, according to the present invention, the garbage thrown into the input chute is crushed by the crusher and supplied to the pneumatic transport pipe, so the volume of garbage is reduced, and a large amount of garbage can be produced without increasing the size of the equipment. It becomes possible to dispose of garbage. In addition, garbage that is not suitable for pneumatic transportation, such as iron lumps, concrete lumps, futons, etc., is detected by the overload applied to the crusher, and is automatically taken out by being guided to the movable removal chute.
Operation is easy and efficient, and there are no accidents resulting in injury or death.
It is safe as there is no risk of injury or accidents.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram showing a conventional pneumatic transport device for waste, Figure 2
The figure is an explanatory diagram showing an embodiment of the present invention, Fig. 3 is an explanatory diagram showing the main part of the embodiment, Fig. 4 is a flow sheet explaining the operation of the embodiment, and Fig. 5 is an explanatory diagram showing the main part of the embodiment. FIG. 6 is a sectional view taken along line A- in FIG. 5, showing the crusher. 11... Input chute 12... Air transport pipe
14... Discharge valve 18... Reservoir 20... Input suppressing valve 22... Rotor 23... Biaxial shear crusher 25... Movable scraper 26... Second level meter 29. ...Movable take-out chute 13- Fig. 5 Fig. 6

Claims (1)

[Claims] An input chute connected to an air transport pipe via a discharge valve, a two-shaft shear crusher consisting of a pair of rotors with blades installed inside the input chute and rotating in opposite directions, and an upper part of the crusher. and a movable take-out chute that is attached to form one side wall of the input chute located below the crusher and rotates toward the inside of the input chute using the lower edge as a fulcrum. , a detection means for detecting an overload applied to the crusher, and when an overload is detected by the detection means, the rotor of the crusher is rotated in the reverse direction by a predetermined positive number of rotations, and then rotated in the normal direction again; If an overload is detected by the detection means, a control device closes the input suppression valve, rotates the movable take-out chute into the input chute, and controls the rotor of the crusher to rotate in reverse. An input chute for a pneumatic transport device, characterized in that it is provided with a.