JP2988830B2 - Water cooled ash discharge device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of charging ash discharged from a refuse incinerator into cooling water (Na), cooling the ash, and sequentially extruding the ash in the cooling water from the cooling water by an ash extruder to a conveyor device. The present invention relates to a water-cooled ash discharge device for discharging to a transfer device side of a water-cooled ash.

[0002]

2. Description of the Related Art Conventionally, a semi-dry type cooling / discharging device for discharging ash discharged from a refuse incinerator into a transfer device after water cooling the ash is, for example, as shown in FIGS. A cooling water tank 1 disposed below and having a curved concave bottom plate 1b at the bottom between the parallel side plates 1a, and an ash outlet formed on the surface of the cooling water W at one side of the cooling water tank 1 2 and an ash extruder 3 arranged on the other side of the cooling water tank 1 and intermittently extruding the ash A in the cooling water W to the ash outlet 2. Further, below the ash outlet 2, a vibrating conveyor device 4 for ash extraction is provided. The ash extruder 3 includes:
Air cylinder device 5 arranged at the other end of cooling water tank 1
A horizontal shaft 6 to which a piston rod of the air cylinder device 5 is connected via a driving lever 6a and which is supported via a bearing in the upper width direction of the cooling water tank 1;
and a scraper 7 slidably supported on the shaft b and having the other end pin-connected to the horizontal shaft 6 via a link arm 6b.

Accordingly, the air cylinder device 5 is driven at regular intervals in accordance with the amount of ash discharged from the ash discharge port of the refuse incinerator, and the scraper 7 is moved via the lever 6a and the link arm 6b to the ash outlet 2 side. The ash A deposited on the bottom of the cooling water tank 1 can be sequentially pushed out to the ash outlet 2 and discharged by the vibrating ash conveyor 4.

[0004]

However, according to the above configuration, as shown in FIG.
Has a large amount of water and is sticky. If the stickiness is large, the ash exit 2 does not immediately drop onto the vibrating table 4a of the vibrating conveyor device 4 for ashing, and the overhang state occurs. And a large amount of ash A may fall on the vibration table 4a at once due to its own weight. As a result, the ashing vibratory conveyor device 4 may be overloaded, and the ashing vibrating conveyor device 4 may be stopped in some situations.

An object of the present invention is to solve the above-mentioned problems and to provide a water-cooled ash discharging device capable of sequentially discharging ash extruded from cooling water to a conveying device side.

[0006]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a water-cooled ash discharging device of the present invention intermittently moves an extruding member to an ash outlet side on a cooling water surface to remove ash in the cooling water. An ash extruder that extrudes from the ash outlet to the ash extruder side, and a cutting member is disposed in front of the ash outlet so as to be able to move in and out of the ash outlet in a cross-sectional direction in conjunction with the ash extruder, and can cut ash facing the ash outlet Ash separation device.

Further, in addition to the above configuration, the cutting member is configured to be movable forward in the ash pushing direction when the cutting member protrudes.

[0008]

In the above construction, when the ash extruding device is driven to project the extruding member and the ash is sequentially pushed out to the ash outlet side, the cutting member is protruded in the ash outlet transverse direction in conjunction with the ash extruding device. Therefore, it is possible to sequentially cut ash that is likely to overhang without falling due to solidification due to moisture, and discharge it from the ash outlet to the ash removal device, thus preventing large quantities of ash from being thrown into the ash removal device at once. Therefore, it is possible to reliably prevent the ash removal device from stopping due to overload.

Further, since the cutting member is configured to be movable forward in the ash pushing direction, if solid matter is mixed in the ash to be cut, the cutting member is moved forward without forcibly cutting. To prevent the failure of members and devices caused by excessive cutting.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a water-cooled ash discharging device according to the present invention will be described below with reference to FIGS. The same members as those in the related art are denoted by the same reference numerals, and description thereof will be omitted.

In FIG. 1, reference numeral 11 denotes an ash separating device arranged above the ash outlet 3, and a cutter (cutting member) arranged so as to be able to retreat from above at a position in front of the ash outlet 3 in the ash pushing direction.
And a pneumatic cutting cylinder device 13 for driving the cutter 12 out and back.

The cutter 12 is, as shown in FIG.
It is a flat plate having a saw-like blade portion 12a formed at the lower end, and slightly inclined downwardly between the solid line position and the imaginary line position through the opening 10 formed at a position in front of the ash outlet 3. The ash A is disposed so as to be able to move back and forth, and is configured to be able to cut the ash A facing above the ash outlet 3. A pair of left and right guide rods 12b are connected to an upper portion of the cutter 12, and these guide rods 12b are guided by guide members 12c so as to be slidable in the length direction.

As shown in FIG. 3, in the cutting cylinder device 13, a swing frame 16 is swingably supported by a support member 14 via a horizontal pin 15 in the width direction. The cylinder body 13a is supported by the bracket 17 provided via a support pin. The piston rod 13b is connected to the upper center of the cutter 12 via a connecting member, and the guide member 12c
Is attached to the swing frame 16. Further, the swing frame 16 is urged to rotate downward about the horizontal pin 15 by the weight of the members, and an adjustment bolt 18 attached to the support member 14 so as to be able to move back and forth is attached to the lower portion of the swing frame. Of the cutting cylinder device 13 and the cutter 12 are configured to be adjustable, and allow the cutter 12 to escape forward and upward. It is configured as follows. Therefore, as shown in FIG. 3, even if the solid matter S is mixed in the ash A, the ash A can be rotated forward and upward as shown by the imaginary line to avoid excessive cutting, and can escape. Breakage of the cutting cylinder device 13 and other members can be prevented.

In the above configuration, the air cylinder device 5 of the ash extruder 3 is driven at regular intervals in accordance with the amount of ash A discharged from the ash discharge port of the refuse incinerator, and the lever 6a
The scraper 7 is moved toward and away from the ash outlet 2 via the link arm 6b. Thereby, the bottom plate 1 of the cooling water tank 1
The ash A cooled and accumulated by the cooling water W on the b is sequentially pushed out to the ash outlet 2 side. When the forward end of the air cylinder device 5 is detected by the limit switch LS1 in the automatic operation state of the ash separating device 11, the cutting device 13 of the ash separating device 11 is advanced by the control device 20 and the cutter 12 is protruded. Then, the ash A facing the ash outlet 2 is cut and dropped on the vibration table 4a of the vibrating conveyor device 4 for ash. Then, when the cutter 12 reaches the lower limit end, it returns to the original position. By repeating this,
The ash A within the load of the ashing vibrating conveyor device 4 can be smoothly discharged without overhang occurring at the ash outlet 2, and there is no overload. Also,
When the solid S is mixed in the ash A, when the blade portion 12a of the cutter 12 comes into contact with the solid S, the cutter 12 rotates forward and upward around the horizontal pin 15 to forcefully cut the solid S. You can avoid and escape. Therefore, an unreasonable load is prevented from being applied to the cutter 12, the cutting cylinder device 13, and other members. After the solids S are discharged, the cutter 12 returns to its original cutting position where the abutment plate 19 abuts on the adjustment bolt 18 by its own weight.

In the case of manual operation, the ash separation device 11 can be operated according to the ash discharge state regardless of the operation of the ash extrusion device 3. In the above embodiment, the cutter is moved from the upper part to the lower part, but may be moved in the transverse direction.

[0016]

As described above, according to the present invention, when the ash extruder is driven to project the extruded member and the ash is sequentially extruded to the ash outlet side, the cutting member is interlocked with the ash extruder. Is projected in the cross-sectional direction just before the ash outlet, so that the ash that faces the ash outlet and hardens due to moisture and does not fall overhangs can be cut sequentially according to the extrusion movement, and can be discharged from the ash outlet to the ash extraction device. Therefore, it is possible to prevent a large amount of ash from being thrown into the ash removal device at once, and it is possible to reliably prevent the ash removal device from being stopped due to an overload.

Also, since the cutting member is configured to be movable forward in the ash pushing direction, if solid matter is mixed in the ash to be cut, the cutting member is moved forward without forcing. To prevent the failure of members and devices caused by excessive cutting.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of an ash cooling and discharging device according to the present invention.

FIG. 2 is a plan view showing a cooling and discharging device for the ash.

FIG. 3 is a side view showing the ash separation device for the ash.

FIG. 4 is a side view showing a conventional ash cooling and discharging device.

FIG. 5 is a plan view showing a conventional ash cooling and discharging device.

FIG. 6 is a side view showing an overhang state of a conventional ash cooling and discharging device.

[Explanation of symbols]

 W Cooling water A Ash 1 Cooling water tank 2 Ash outlet 3 Ash extruder 4 Vibrating conveyor device for ash extraction 5 Air cylinder device 7 Scraper 11 Ash separation device 12 Cutter 13 Cylinder device for cutting 20 Control device

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 63-134234 (JP, U) Japanese Utility Model Sho 62-63535 (JP, U) Japanese Utility Model Sho 59-181936 (JP, U) Japanese Utility Model Sho 57- 127128 (JP, U) Actually open Showa 53-16684 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) F23J 1/02

Claims (2)

(57) [Claims] An ash extruder for intermittently moving an extruding member to an ash outlet side on a cooling water surface to push out ash in the cooling water from an ash outlet to an ash extruder side; A water-cooled ash discharging device, comprising: an ash separating device in which a cutting member is disposed in the vicinity of the ash outlet so as to be able to move back and forth in a cross-sectional direction and is capable of cutting ash facing the ash outlet. 2. The water-cooled ash discharging device according to claim 1, wherein the cutting member is configured to be movable forward in the ash pushing direction when projecting.