JP3782681B2 - Humidification kneader - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a humidifying and kneading apparatus for humidifying and kneading powder such as incineration ash.
[0002]
[Prior art]
For example, incineration ash discharged from an incinerator is humidified and kneaded by a humidifying and kneading device, for example, to facilitate transportation by a transport vehicle such as a truck and to prevent scattering during transportation.
[0003]
As shown in FIG. 3 (a), this humidifying kneading apparatus includes a rotating shaft 51 extending in this direction and rotationally driven in a cylindrical main body 50 extending in the direction perpendicular to the paper surface, and the rotating shaft. 51, and a plurality of spray nozzles 54 (FIGS. 3A and 3B) suspended from a header pipe 53 and a lower portion of the header pipe 53. )), And by opening the valve 55 provided on the upstream side of the spray nozzle 54 of the header pipe 53, water is supplied to the spray nozzle 54 via the header pipe 53, and the spray nozzle 54 Water is sprayed downward to humidify the incineration ash, and the humidified ash X is conveyed and discharged while being kneaded by rotation of the spiral blade 52.
[0004]
[Problems to be solved by the invention]
Here, even if the valve 55 is closed to stop the supply of the spray water from the spray nozzle 54, water remains in the downstream portion of the header pipe 53 from the valve 55. Therefore, the spray nozzle until the residual water disappears. From 54, the residual water flows down.
[0005]
When the residual water flows down and the spiral blade 52 stops rotating in a humid state, it takes a long time (for example, once / several days) until the next transport vehicle arrives. There is a possibility that the spiral blade 52 may not rotate during the next operation after solidifying. In addition, when ash containing residual water is discharged to a transport vehicle, a large amount of water (residual water) is discharged, and the substantial amount of ash is reduced. There is also a risk of overloading trying to transport ashes.
[0006]
The present invention has been made to solve such problems, and can prevent solidification of powders such as incineration ash and ensure normal operation of the apparatus, and can also be used for transportation costs of powders. An object of the present invention is to provide a humidifying and kneading apparatus that can reduce overload and prevent overloading during transportation.
[0007]
[Means for Solving the Problems]
A humidifying and kneading apparatus according to the present invention includes a spray nozzle disposed above a powder conveyance path and a header pipe connecting the spray nozzle, and sprays water supplied through the header pipe from the spray nozzle. In a humidifying and kneading apparatus that transports and discharges the humidified powder while kneading the humidified powder, the spray nozzle is connected to the upper part of the header pipe.
[0008]
According to such a humidifying and kneading apparatus, since the spray nozzle is connected to the upper part of the header pipe, when the supply of water is stopped by the header pipe, the water spray from the spray nozzle is immediately stopped and the excessive supply of water is stopped. Be lost.
[0009]
Here, if the spray nozzle is configured to spray water in the direction to follow the powder to be transported, the spray water may not flow backward with respect to the powder transport direction and may accumulate on the upstream side in the transport direction. Be lost.
[0010]
In addition, when the conveying path is inclined downward from the upstream side in the conveying direction toward the downstream side, the powder is sufficiently humidified and kneaded.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a humidifying and kneading apparatus according to the invention will be described with reference to the accompanying drawings. FIG. 1 is a schematic configuration diagram illustrating a humidifying and kneading apparatus according to the present invention, and FIG. This humidifying and kneading device is for humidifying and kneading incineration ash from, for example, an incinerator, discharging it, and loading it on a waiting vehicle such as a truck.
[0012]
As shown in FIG. 1, the humidifying and kneading apparatus 1 is provided with a main body 11 that is roughly formed in a substantially cylindrical shape and is horizontally disposed, and is provided around the rotating shaft 12 and the rotating shaft 12 in the main body 11. The spiral blade (screw blade) 13 is provided.
[0013]
The main body 11 has an ash inlet 15 for introducing incinerated ash into the upper part on one side (right side in the figure), and discharges humidified ash that has been humidified and kneaded inside in the lower part on the other side (left side in the figure). An ash outlet 16 is provided.
[0014]
The rotating shaft 12 disposed in the main body 11 is installed coaxially with the main body 11 and is rotatably supported by the main body 11. The rotating shaft 12 is connected to an electric motor 14 installed outside the main body 11 and is rotated by driving of the electric motor 14.
[0015]
The spiral blade 13 provided around the rotary shaft 12 rotates with the rotary shaft 12 and conveys the ash in the main body 11 from the ash inlet 15 side toward the ash outlet 16 side. Therefore, the portion from the ash inlet 15 to the ash outlet 16 in the main body 11 is the ash transport path R.
[0016]
The main body 11 including the ash conveyance path R is installed so as to be inclined at an angle θ from the upstream side toward the downstream side in the ash conveyance direction.
[0017]
Further, as shown in FIGS. 1 and 2, the main body 11 is formed so that the upper part near the ash inlet 15 protrudes upward, and the header 23 crosses over the ash conveyance path R in the protrusion 23. A tube 20 is installed. As shown in FIG. 2, the header pipe 20 includes a valve 22 at a position outside the protrusion 23. This valve 22 supplies / stops water to the downstream side of the valve 22 of the header pipe 20 by opening / closing. The header pipe 20 is provided with a plurality of spray nozzles 21 for spraying water supplied to the header pipe 20 at positions in the protrusion 23, spaced apart from each other along the axis of the header pipe 20. .
[0018]
The spray nozzle 21 is a feature of the present embodiment. As shown in FIG. 1, the spray nozzle 21 has a substantially U shape, one end is connected to the upper portion of the header pipe 20, and the middle is curved. And the nozzle part of the front-end | tip which is an edge part of the other side is comprised so that it may face downward. Particularly in the present embodiment, the spray nozzle 21 is capable of spraying water in such a direction that the nozzle portion at the tip thereof is directed obliquely to the lower left and follows the ash conveyed from the right side to the left side in FIG. Has been.
[0019]
And the incineration ash storage tank 2 which stores the incineration ash Y is connected to the upper part of the ash inlet 15 of the humidification kneading apparatus 1 having such a configuration through a cutting device 3 such as a rotary valve.
[0020]
According to the humidifying and kneading apparatus 1 configured as described above, when a predetermined amount of the incineration ash Y of the incineration ash storage tank 2 is cut out according to the cutting apparatus 3 and introduced into the main body 11 through the ash inlet 15, the incineration ash Y is conveyed along the ash conveyance path R toward the ash outlet 16 side according to the rotation of the spiral blade 13.
[0021]
Along with the conveyance of the incinerated ash, the valve 22 is opened, water is supplied to the end of the header pipe 20, and water is sprayed from the spray nozzle 21 toward the incinerated ash Y conveyed below, Incineration ash Y is humidified.
[0022]
At this time, since water is sprayed in a direction to follow the transported ash, the sprayed water does not flow backward with respect to the ash transport direction at the bottom of the ash transport path R, and is upstream in the transport direction in the main body 11. Therefore, the solidification of ash is prevented.
[0023]
The humidified ash Z (see FIG. 2) humidified by the spray water from the spray nozzle 21 is further conveyed while being kneaded and discharged from the ash outlet 16 according to the rotation of the spiral blade 13.
[0024]
At this time, since the ash transport path R is inclined downward at an angle θ from the upstream side toward the downstream side in the ash transport direction, the ash is sufficiently humidified and kneaded. Here, the inclination angle θ is preferably about 5 to 10 °. This is because if the inclination angle θ is too large, the sprayed water floats in the main body 11 and only the sprayed water is discharged from the ash outlet 16 so that the ash is not sufficiently humidified and kneaded.
[0025]
And when the valve | bulb 22 of the header pipe | tube 20 is closed in order to stop the water spray with respect to the incineration ash Y, since the spray nozzle 21 is connected to the upper part of the header pipe | tube 20, the water spray from the spray nozzle 21 will be immediately. Stopped and excessive water supply is prevented.
[0026]
Accordingly, the humid state in the main body 11 is eliminated, the solidification of ash is prevented, the normal operation of the apparatus 1 is ensured, and the excess water is eliminated, thereby reducing the transportation related costs of the ash and the excess during transportation. It is possible to prevent loading. Moreover, since humidified ash is moderately humidified without excess or deficiency, it is of course not scattered during transportation by a transport vehicle.
[0027]
It should be noted that the monitoring means such as a TV camera for monitoring the arrival of a transport vehicle such as a truck that transports the humidified ash, and the control for monitoring the monitoring means and controlling the cutting device 3, the motor 14, and the valve 22 of the header pipe 20. Means (CPU) for determining the time T when the incinerated ash Y cut out immediately before stopping the cutting device 3 reaches the position where the spray water is provided by the rotation of the spiral blade 13. When the arrival of the transport vehicle is recognized, the cutting device 3 is stopped, and when the time T elapses, the valve 22 is closed and the water spray from the spray nozzle 21 is immediately stopped. Thus, the incinerated ash may be appropriately humidified without excess or deficiency, and all of the humidified ash may be discharged while being kneaded by the rotation of the spiral blade 13 and loaded on the transport vehicle. By configuring in this way, the above effect can be obtained while saving labor, that is, the normal operation of the apparatus 1 is ensured, the transportation-related costs of the humidified ash are reduced, and overloading during transportation is prevented. It becomes possible.
[0028]
The present invention has been specifically described above based on the embodiment. However, the present invention is not limited to the above embodiment. For example, in the above embodiment, the spray water is provided on the ash inlet 15 side in the main body 11. In order to prevent the water from being accumulated, the spray nozzle 21 is configured to spray water in a direction to follow the incinerated ash Y being conveyed, but it may be configured to have a substantially inverted U shape and face downward. The configuration in which water is sprayed in the direction toward the incinerated ash Y to be conveyed does not hinder the present invention, and the main point is that it is only required to be connected to the upper portion of the header pipe 20.
[0029]
Moreover, in the said embodiment, although especially an effect is remarkable, the object is made into incineration ash, However, It is not limited to incineration ash, It is applicable if it is powder.
[0030]
【The invention's effect】
The humidifying and kneading apparatus according to the present invention connects the spray nozzle to the upper part of the header pipe, and when the supply of water is stopped by the header pipe, the water spray from the spray nozzle is immediately stopped and the excessive supply of water can be eliminated. Is possible. For this reason, it is possible to ensure the normal operation of the apparatus by eliminating the humid state and preventing the powder from solidifying, and by eliminating the excess water, the transportation related costs of the powder can be reduced and at the time of transportation. It becomes possible to prevent overloading.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram showing a humidifying and kneading apparatus according to the present invention.
FIG. 2 is a view taken in the direction of arrows AA in FIG.
FIGS. 3A and 3B are diagrams showing a main part of a humidifying and kneading apparatus according to the prior art, in which FIG. 3A is a cross-sectional view, and FIG. 3B is a view taken along the line B-B in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Humidification kneading apparatus, 12 ... Rotary shaft, 13 ... Spiral blade, 14 ... Electric motor, 20 ... Header pipe, 21 ... Spray nozzle, 22 ... Valve, R ... Ash conveyance path (powder conveyance path), Y ... Incineration Ash (powder), Z: humidified ash (humidified powder), θ: inclination angle.

Claims (3)

A spray nozzle disposed above the powder conveyance path and a header pipe connecting the spray nozzle, and water supplied through the header pipe is sprayed from the spray nozzle to humidify the powder. In a humidifying and kneading apparatus that conveys and discharges the conveying path while kneading the body,
A humidifying and kneading apparatus characterized in that the spray nozzle is connected to an upper portion of the header pipe. The humidifying and kneading apparatus according to claim 1, wherein the spray nozzle sprays water in a direction to follow the conveyed powder. The humidifying and kneading apparatus according to claim 1, wherein the transport path is inclined downwardly from the upstream side in the transport direction toward the downstream side.

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