JPH10286820A - Automatic cleaning device for concrete manufacturing device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an automatic cleaning device, for a concrete manufacturing device, which is capable of rapidly and positively cleaning a splashed concrete sticking to the outer face of a delivery gate and its peripheral edge in an automatic and efficient manner. SOLUTION: This automatic cleaning device for a concrete manufacturing device has opening parts 13 formed, at a specified interval, on both sides of a cover member 11 for preventing a splash which is interposed between a mixer 3 and a hopper which constitute the concrete manufacturing device. In addition, a shutter 14 is mounted, in a freely operable manner, or each of the opening parts 13. At the same time, a required number of jet nozzles 18 are arranged outside both sides of the cover member 11 in such a manner that the jet nozzles 18 are freely introduced inwardly or retracted through the shutter member 14 and the opening parts 13.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic cleaning apparatus in a concrete manufacturing apparatus, and more particularly, to an automatic cleaning apparatus which automatically scatters at the time of discharge and adheres to an outer surface of a discharge gate and a peripheral edge thereof. The present invention relates to an automatic cleaning device in a concrete manufacturing device, which can be efficiently cleaned.

[0002]

2. Description of the Related Art Conventionally, as an example of a concrete manufacturing apparatus in a ready-mixed concrete plant, a twin-screw kneading mixer is mounted on a mount having a required height, and a screen is mounted on an upper part of the twin-screw kneading mixer. Required raw material measuring instrument via
A hopper is provided at the lower portion, and the hopper is
It is known that a cover member for preventing scattering is interposed between the cover and the lower end of the mixer.

[0003] In the concrete manufacturing apparatus configured as described above, a required amount of raw materials such as water, cement, aggregate, and the like are charged into a twin-screw forced kneading mixer via a measuring device, and kneaded for a predetermined time. After the concrete is generated, the discharge gate is opened and the hopper is loaded on a ready-mixed concrete car or the like.

[0004]

By the way, at the time of discharging the produced concrete in the concrete manufacturing apparatus configured as described above, the cover member is used to cover the outward scattering caused by the jump of the discharged concrete. Therefore, it can be effectively prevented. However, the discharge concrete scatters and adheres to the outer surface and the peripheral edge of the discharge gate located inside the cover member during the opening operation, and this greatly impedes the smooth opening and closing operation of the discharge gate. It is easy. For this reason, the outer surface of the discharge gate and its periphery must always be reliably cleaned. However, as described above, the discharge gate is concealed by the cover member, so that the cleaning is performed. The operation is very troublesome and troublesome, and not only is the operation efficiency extremely poor, but also reliable cleaning cannot be expected. Further, it promotes the solidification and growth of the adhered concrete due to the insufficient cleaning, and often causes the opening / closing operation of the discharge gate to be remarkably obstructed to easily cause unnecessary troubles. The so-called filing work of the consolidated concrete had to be performed, and from this point too much problem had been encountered.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned conventional problems at a glance, and makes it possible to quickly, reliably and efficiently clean scattered concrete adhering to the outer surface of the discharge gate and its periphery. It is an object of the present invention to provide an automatic cleaning apparatus in a concrete manufacturing apparatus.

[0006]

That is, according to the present invention, predetermined parts are provided on both sides of a scattering prevention cover member 11 interposed between a mixer 3 and a hopper 9 constituting a concrete manufacturing apparatus 1. Openings 13 are formed at intervals, and a shutter member 14 is attached to each of the openings 13 so as to be openable and closable, and a required number of ejection nozzles 18 are provided on both sides of the cover member 11 outside the shutter. The gist of the present invention is an automatic washing apparatus in a concrete manufacturing apparatus, which is arranged so as to be able to enter and exit inward through a member 14 and an opening 13.

In the automatic cleaning apparatus according to the present invention, the shutter member 1 having the injection nozzle 18 opened is opened.
4. Inserting the cover member 11 through the opening 13 into the inside of the cover member 11 and spraying water to quickly, reliably and efficiently remove concrete that scatters and adheres to the outer surface of the discharge gate 7 and its peripheral edge. Not only can it be automatically cleaned well, but also when the cleaning is not performed, the spray nozzle 18 is located outside the cover member 11 and the opening 13 of the cover member 11 is not opened.
Can be closed by the shutter member 14, so that the discharge concrete at the time of discharge can be prevented from scattering outward.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 is a required concrete manufacturing apparatus, 2 is a rectangular frame-like base having a required height constituting the concrete manufacturing apparatus 1, and 3 is a biaxial forced kneading mixer mounted on the base 2. The two-shaft forced kneading mixer 3 has two driving shafts 5 rotating in opposite directions in a mixing drum 4 and is horizontally arranged in parallel, and each of the driving shafts 5 is alternately arm-shaped. Of the mixing drum 4 and a discharge gate 7 is rotatably mounted on the bottom wall of the mixing drum 4. Reference numeral 8 denotes a required number of raw material charging shoes connected to the upper end of the twin-screw mixing mixer 3.
, 9 is a hopper disposed below the hopper, 10 is a hopper cover with an opening attached to the upper end of the hopper 9, and 11 is the hopper cover 10 and a discharge gate. The scatter prevention cover member 13 also serving as a mounting plate interposed between the gate seal plate 12 of the gate 7 and the longitudinal direction of the cover member 11, that is, the longitudinal direction of the discharge gate 7. Small-diameter openings formed at predetermined intervals on both sides thereof in the same direction;
Reference numeral 4 denotes a shutter member formed of an elastic material such as rubber mounted on the cover member 11 so as to close each of the openings 13, and reference numeral 15 denotes a cross-shaped cut formed at the center of each of the shutter members 14. Each of the insertion portions 15 is closed by its elastic force when not inserted.

Reference numeral 16 denotes a mounting pipe which is disposed in parallel on both sides of the cover member 11 in the longitudinal direction thereof and has both ends blind, and 17 denotes a cover which covers the mounting pipe 16 respectively. A pneumatic cylinder movable in the direction of the member 11,
Numerals 18 denote upwardly directed injection nozzles which are respectively connected to the mounting pipes 16 on both sides so as to correspond to the respective openings 13 of the cover member 11, and each of the injection nozzles 18 is mounted by operating the pneumatic cylinder 17. 16 through the shutter
The insertion portion 15 of the member 14 allows the cover member 11 to move in and out of the cover member 11. Reference numeral 19 denotes a water tank disposed at the upper end of the gantry 2, reference numeral 20 denotes a water supply pipe for supplying water from the water tank 19 to the mounting pipes 16 on both sides, and reference numeral 21 denotes a water supply pump interposed in the middle of the water supply pipe 20. .

In the embodiment constructed as described above, a required amount of raw materials such as water, cement, aggregate and the like are charged into the twin-screw forced kneading mixer 3 through the shoot 8 as in the conventional example. After kneading for a required time to produce a concrete, the discharge gate 7 is opened and loaded onto a ready-mixed concrete vehicle (not shown) from the hopper 9. At this time, each injection nozzle 18
Are located outside the cover member 11 and each opening 1
3 are each closed by a shutter member 14,
Although the outward scattering accompanying the discharge of the produced concrete is surely prevented, it scatters and adheres to the outer surface of the discharge gate 7 located inside the cover member 11 and its peripheral edge (see FIG. 3).

When the discharge of the produced concrete is completed, the discharge gate 7 is closed. Thereafter, the mounting pipe 16 is covered by the operation of the pneumatic cylinder 17.
The nozzle is moved in the direction of the member 11, and each of the spray nozzles 18 is inserted inward from the insertion portion 15 of the shutter member 14 through the opening 13, and water is sprayed onto the outer surface of the discharge gate 7 and its peripheral edge for cleaning (see FIG. 4). At this time, the injection nozzle 18 is moved from the insertion portion 15 of the shutter member 14 to the opening 13.
The water is sprayed while being inserted inward, and the water is sprayed to clean the outer surface of the discharge gate 7 in the cover member 11, which has been extremely difficult to clean conventionally. Automatic cleaning can be performed reliably and efficiently.

When the cleaning of the outer surface of the discharge gate 7 is completed, the mounting pipe 16 is returned to its original state by the operation of the pneumatic cylinder 17, and each injection nozzle 18 is removed from the opening 13 through the insertion portion 15 of the shutter member 14. Let go. At this time, when the injection nozzle 18 retreats, the insertion portion 15 of the shutter member 14 is restored by the elastic force, and the opening 13 is automatically closed.

In the above embodiment, the twin-screw kneading mixer 3 is shown as a mixer. However, the present invention is not limited to this, and other known mixers having a discharge gate on the bottom wall may be used. The present invention can also be applied to the constructed concrete manufacturing apparatus. Also, shutter member 1
The injection nozzle insertion portion 15 of No. 4 is formed by cutting in a cross shape, but is not limited thereto.
It may be configured so that the opening / closing operation is automatically performed appropriately in accordance with the in / out operation of the injection nozzle 18.

[0014]

As described above, according to the present invention, predetermined portions are provided on both sides of the scattering prevention cover member 11 interposed between the mixer 3 and the hopper 9 which constitute the concrete manufacturing apparatus 1. Openings 13 are formed at intervals, and each of the openings 1 is formed.
A shutter member 14 is attached to the cover member 3 so as to be openable and closable, and a required number of spray nozzles 18 are provided on both sides of the cover member 11 so as to be able to enter and exit inward through the shutter member 14 and the opening 13. Therefore, the spray nozzle 18 is inserted into the cover member 11 through the shutter member 14 and the opening 13 that has opened the opening nozzle, and water is sprayed to scatter on the outer surface of the discharge gate 7. It can clean the adhering concrete, and can quickly and thoroughly cover the outer surface of the discharge gate 7 located in the cover member 11 which has been extremely difficult to clean conventionally. Automatic cleaning can be performed reliably and efficiently. Also,
At the time of non-washing, the injection nozzle 18 is positioned outside the cover member 11 and the opening 13 of the cover member 11 is closed with the shutter member 14, so that the discharge concrete scatters outward during discharge. Can be prevented.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view showing the main part.

FIG. 3 is a partially enlarged sectional view showing a discharge state of a produced concrete.

FIG. 4 is a partially enlarged cross-sectional view showing a cleaning state by an injection nozzle 18.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Concrete manufacturing apparatus 3 Biaxial forced kneading mixer 7 Discharge gate 9 Hopper 11 Cover member 13 Opening 14 Shutter member 18 Injection nozzle

Claims (1)

[Claims] An opening 13 is formed at a predetermined interval on each side of a scattering prevention cover member 11 interposed between a mixer 3 and a hopper 9 constituting a concrete manufacturing apparatus 1. A shutter member 14 is attached to each of the openings 13 so as to be openable and closable, and a required number of spray nozzles 18 are provided on both sides of the cover member 11 outside through the shutter member 14 and the openings 13. An automatic cleaning apparatus in a concrete manufacturing apparatus, wherein the automatic cleaning apparatus is provided so as to be freely accessible.