Incineration ash humidifying and discharging device

Abstract

The incineration ash humidifying and discharging device is provided with an ash storage chamber for inputting incineration ash; an ash humidification device for supplying humidification water to the incineration ash; the ash discharge channel is connected with the side part of the ash storage chamber; an ash pushing device having a pushing member that reciprocates with respect to the ash discharge passage; the height gauge is arranged at the position higher than an inlet of the ash discharging channel and detects the height of the incineration ash stored in the ash storage chamber, when the height gauge detects the incineration ash, the ash pushing-out device enables the pushing component to reciprocate once, and the ash humidifying device humidifies the incineration ash when the pushing component reciprocates every time. Humidified water is supplied to the incinerated ash at a fixed ratio with respect to the volume of the incinerated ash pushed out to the ash discharge passage by one reciprocating motion of the pushing member.

Description

[0001] This application claims priority based on Japanese Patent Application No. 2023-104903 filed on June 27, 2023, and the contents are incorporated herein. Technical Field

[0002] The invention relates to an incineration ash humidifying and discharging device. Background Art

[0003] Japanese Patent Application Publication No. 2000-55341 discloses an incineration ash discharge device, which water-cools and reforms incineration ash discharged from a waste incinerator and then discharges it. The incineration ash discharge device includes a cooling chamber for the ash discharged from the waste incinerator to be put into, a cooling water nozzle for spraying cooling water to the ash accumulated in the cooling chamber, an ash discharge mechanism for discharging the ash in the cooling chamber, and a sealing mechanism for sealing the cooling chamber.

[0004] In the above-mentioned conventional technology, the incineration ash accumulated in the cooling chamber is pushed out to the ash outlet through the ash push-out channel according to a fixed cycle, and a specified amount of cooling water is intermittently sprayed from the cooling water nozzle in coordination with the timing of the incineration ash being thrown from the incinerator to the ash discharge chute. However, the amount of incineration ash thrown from the incinerator is not necessarily a fixed amount, and thus the moisture content of the incineration ash is variable. In addition, the ash discharge mechanism will work with an unnecessary number of push-outs for the amount of incineration ash, resulting in faster wear of the sliding part and a higher maintenance frequency. Moreover, there is also the problem of more ash returning to the back side of the furnace shovel, which increases the cleaning frequency (i.e., the maintenance frequency increases). Summary of the invention

[0005] The present invention has been made in view of the above problems, and an object of the present invention is to provide an incineration ash humidification and discharge device capable of freely adjusting the moisture content of the incineration ash. Another object of the present invention is to provide an incineration ash humidification and discharge device capable of reducing the maintenance frequency.

[0006] The first embodiment of the incineration ash humidification and discharge device of the present invention comprises: an ash storage chamber for inputting incineration ash; an ash humidifying device for supplying humidifying water to the incineration ash; an ash discharge channel connected to the side of the ash storage chamber; an ash pushing device which is arranged on the side of the ash storage chamber opposite to the ash discharge channel and has a pushing component which reciprocates relative to the ash discharge channel; and an altimeter which is arranged at a position higher than the entrance of the ash discharge channel and detects the height of the incineration ash stored in the ash storage chamber, wherein the ash pushing device causes the pushing component to reciprocate once when the altimeter detects the incineration ash, and the ash humidifying device supplies the humidifying water in a fixed proportion to the volume of the incineration ash pushed to the ash discharge channel by one reciprocating motion of the pushing component each time the pushing component reciprocates.

[0007] An incineration ash humidifying and discharging device according to a second aspect of the present invention is the incineration ash humidifying and discharging device according to the first aspect, wherein the ash humidifying device includes a first humidifying water supply unit that supplies the humidifying water from the bottom of the ash storage chamber.

[0008] In the incineration ash humidification and discharge device of the third aspect of the present invention, in the incineration ash humidification and discharge device of the second aspect, the first humidification water supply part supplies the humidification water from the back side of the pushing member through a gap between the pushing member and a sliding liner provided at the bottom of the ash storage chamber.

[0009] An incineration ash humidifying and discharging device according to a fourth aspect of the present invention is the incineration ash humidifying and discharging device according to the second or third aspect, wherein the ash humidifying device further includes a second humidifying water supply unit that supplies the humidifying water from a top portion of the ash discharge passage.

[0010] According to a fifth aspect of the present invention, in the incineration ash humidifying and discharging device of the fourth aspect, the second humidifying water supply unit supplies the humidifying water from an upwardly convex space portion provided at a top near an inlet of the ash discharging passage.

[0011] An incineration ash humidification and discharge device according to a sixth aspect of the present invention is the incineration ash humidification and discharge device according to any one of the first to fifth aspects, wherein the humidification water contains a chelate that suppresses elution of heavy metals from the incineration ash.

[0012] According to any one of the above-mentioned aspects of the present invention, the moisture content of the incineration ash can be freely adjusted, and an incineration ash humidification and discharge device capable of reducing the maintenance frequency is provided. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a block diagram showing an incineration ash humidifying and discharging device according to one embodiment.

[0014] Figure 2 FIG. 1 is a top view of an ash storage chamber according to an embodiment.

[0015] Figure 3 It is a diagram showing the structure of an incineration ash humidifying and exhausting device according to a comparative example.

[0016] Figure 4 This is a diagram for evaluating the performance of the incineration ash humidifying and exhausting device of the comparative example.

[0017] Figure 5 This is a diagram showing the structure of the incineration ash humidifying and discharging device according to the first embodiment.

[0018] Figure 6 This is a diagram for evaluating the performance of the incineration ash humidifying and exhausting device of the first embodiment.

[0019] Figure 7It is a diagram showing the structure of the incineration ash humidifying and discharging device according to the second embodiment.

[0020] Figure 8 This is a diagram for evaluating the performance of the incineration ash humidifying and exhausting device of the second embodiment. DETAILED DESCRIPTION

[0021] Hereinafter, various embodiments of the present invention will be described with reference to the drawings. Hereinafter, a case where the present invention is applied to a garbage incinerator will be exemplified.

[0022] Figure 1 It is a block diagram showing an incineration ash humidifying and discharging device 1 according to one embodiment.

[0023] Figure 1 The incineration ash humidification and discharge device 1 shown humidifies the incineration ash put into the garbage incinerator and then discharges it. By humidifying the incineration ash, it is possible to prevent the incineration ash from scattering when it is transported by a transport vehicle to a landfill or the like. In addition, if the incineration ash is excessively humidified, it will become heavier and the number of transportations performed by the transport vehicle will increase. Therefore, it is preferred that the moisture content of the incineration ash is low (for example, less than 20%). In addition, in order to suppress the dissolution of heavy metals from the incineration ash, it is preferred that the humidification water used to humidify the incineration ash contains a chelate.

[0024] The incineration ash humidification and discharge device 1 comprises an ash storage chamber 10, an ash humidification device 20, an ash discharge passage 30, an ash pusher 40 and a height meter 50. The ash storage chamber 10 is arranged below an ash discharge chute 11 connected to the incineration chamber of the garbage incinerator, and the incineration ash is put in through the ash discharge chute 11.

[0025] The ash discharge passage 30 is connected to the side portion 12 of the ash storage chamber 10. In addition, an ash push-out device 40 is provided at the side portion 13 of the ash storage chamber 10 opposite to the ash discharge passage 30, and the ash push-out device 40 has a pushing member 41 that reciprocates relative to the ash discharge passage 30. A sliding lining 15 is provided at the bottom 14 of the ash storage chamber 10 for the pushing member 41 to slide.

[0026] Figure 2 FIG. 1 is a top view of an ash storage chamber 10 according to an embodiment.

[0027] like Figure 2 As shown, a plurality of sliding liners 15 are provided at the bottom 14 of the ash storage chamber 10. The plurality of sliding liners 15 extend along the moving direction of the pushing member 41 and are arranged with gaps in the width direction orthogonal to the moving direction of the pushing member 41. The lower end of the pushing member 41 slides on the upper surface of the sliding liners 15 and is formed in a comb-tooth shape that can be inserted into the gaps between adjacent sliding liners 15.

[0028] Back to Figure 1The ash discharge channel 30 has an inclined portion 31 and an ash falling portion 32. The inclined portion 31 is connected to the side portion 12 of the ash storage chamber 10 to form an inlet 30A of the ash discharge channel 30. The inlet 30A of the ash discharge channel 30 is smoothly continuous with the bottom 14 of the ash storage chamber 10. The inclined portion 31 is inclined upward as it moves from the inlet 30A of the ash discharge channel 30 toward the outlet 30B.

[0029] The ash drop portion 32 is continuously provided with the upper end portion of the inclined portion 31. The ash drop portion 32 has an internal space obtained by expanding upward and downward through the inclined portion 31. The outlet 30B of the ash discharge channel 30 is formed at the bottom of the ash drop portion 32. The incineration ash discharged from the outlet 30B of the ash discharge channel 30 passes through the ash discharge chute 61 and falls onto the transport device 60. The transport device 60 has, for example, a conveyor belt not shown in the figure, and transports the incineration ash to a place where the transport vehicle is loaded.

[0030] The ash push-out device 40 includes a push member 41, a link mechanism 42, and a hydraulic cylinder 43. The push member 41 is provided in a manner that it can be extended and retracted from the side portion 13 of the ash storage chamber 10 toward the ash discharge passage 30. A flap 44 is provided above the extended and retracted position of the push member 41 to suppress the intrusion of incineration ash.

[0031] The upper end (rotation axis) of the flap 44 is covered by the inclined cover 16 mounted on the side 13 of the ash storage chamber 10. The link mechanism 42 is connected to the back side of the push member 41. The hydraulic cylinder 43 is connected to the link mechanism 42, and the push member 41 is reciprocated via the link mechanism 42. The incineration ash is pushed out to the ash discharge passage 30 by the reciprocating movement of the push member 41.

[0032] The altimeter 50 is provided at a position higher than the inlet 30A of the ash discharge passage 30, and detects the level (height) of the incineration ash stored in the ash storage chamber 10. Specifically, in the ash storage chamber 10, the altimeter 50 is arranged above the height H1 of the upper end of the inlet 30A of the ash discharge passage 30. When the altimeter 50 detects the incineration ash, the inlet 30A of the ash discharge passage 30 is sealed by the incineration ash.

[0033] The altimeter 50 can use a microwave level switch, for example. With regard to the microwave level switch, for example, the altimeter wave transmitter is set on the side of the inner side of the ash storage chamber 10, and the altimeter wave receiver is set on the side of the near front side opposite thereto. The altimeter 50 can be set at a height at which the inlet 30A of the ash discharge channel 30 can be sealed by the ash even when the storage height of the incineration ash is lowered by a single action of the pushing member 41. In addition, the altimeter 50 is not limited to a microwave level switch as long as it can detect the height of the incineration ash.

[0034] When the altimeter 50 detects the incineration ash, the ash pushing device 40 causes the pushing member 41 to reciprocate once. In addition, in the present embodiment, two altimeters 50 are provided at the top and the bottom, but it may be one. When two altimeters 50 are provided, the pushing member 41 may be reciprocated once when both altimeters 50 detect the incineration ash, or when at least one altimeter 50 disposed at the bottom detects the incineration ash.

[0035] When the pushing member 41 reciprocates each time, the ash humidifying device 20 supplies humidifying water to the incineration ash, and the humidifying water is in a fixed ratio with respect to the volume of the incineration ash pushed to the ash discharge passage 30 by one reciprocating movement of the pushing member 41. For example, the transport volume V (m 3 ), and the specific gravity of the incineration ash γ (kg / m 3 ) is almost constant, so the transport amount of incineration ash Ma (kg) = V (m 3 )×γ(kg / m 3 ) is also almost fixed.

[0036] If the supply amount of humidifying water is Mw (kg), the moisture content Q (%) = Mw / (Ma+Mw) × 100. Then, Mw = QMa / (100-Q). For example, when the transport volume V transported by one operation of the ash push-out device 40 is 0.1m 3 The specific gravity of the incineration ash is 1000 kg / m 3 In the case of , in order to adjust the moisture content of the incineration ash to 20%, Mw=QMa / (100-Q)=QVγ / (100-Q)=20×0.1×1000 / (100-20)=25 kg of humidifying water may be supplied.

[0037] The ash humidifying device 20 includes a first humidifying water supply unit 21 for supplying humidifying water from the bottom 14 of the ash storage chamber 10, and a second humidifying water supply unit 22 for supplying humidifying water from the top of the ash discharge passage 30. The ash humidifying device 20 is controlled so that the total supply amount of humidifying water of the first humidifying water supply unit 21 and the second humidifying water supply unit 22 is 25 kg in the above example. In addition, the supply amount of humidifying water of the first humidifying water supply unit 21 may be controlled to be greater than the supply amount of humidifying water of the second humidifying water supply unit 22.

[0038] The first humidification water supply unit 21 supplies humidification water from the back side of the pushing member 41 through the gap between the pushing member 41 and the sliding liner 15 provided at the bottom 14 of the ash storage chamber 10. Specifically, the first humidification water supply unit 21 is arranged outside the ash storage chamber 10 together with the link mechanism 42 and the hydraulic cylinder 43 of the ash pushing device 40.

[0039] The first humidification water supply unit 21 sprays humidification water so as to be delivered to the inclined ground covering the lower portion of the movable area of ​​the link mechanism 42. Figure 1 The humidification water transmitted on the inclined ground is supplied to the bottom 14 of the ash storage chamber 10 by seeping out from the gap between the pushing member 41 and the sliding liner 15 (refer to Figure 1 as well as Figure 2 ).

[0040] like Figure 1 As shown, the second humidifying water supply unit 22 supplies humidifying water from a space portion 31a that is convex upward and is provided at the top near the entrance of the ash discharge passage 30. In addition, the space portion 31a has the function of reducing the transportation friction of the incineration ash pushed from the ash storage chamber 10 to the ash discharge passage 30. The second humidifying water supply unit 22 sprinkles humidifying water on the upper surface of the incineration ash pushed toward the ash discharge passage 30. In addition, the water sprinkling portion of the second humidifying water supply unit 22 is at Figure 1 There are multiple ones in the depth direction of the paper.

[0041] In the incineration ash humidification and discharge device 1 of the above-mentioned structure, a height meter 50 capable of detecting the storage height of the incineration ash is provided at the upper part of the ash storage chamber 10, and a sufficient amount of incineration ash (dry ash) is stored in the ash storage chamber 10. When the dry ash is stored to a specified height and detected by the height meter 50, the following control is performed: a fixed amount of humidification water pre-calculated based on the target moisture content (for example, 20%) is supplied from the bottom 14 of the ash storage chamber 10 and the upper part of the inclined portion 31 of the ash discharge passage 30, and the pushing member 41 of the ash push-out device 40 is linked to perform a reciprocating motion. The volume of the incineration ash discharged by the reciprocating motion of the pushing member 41 is fixed, so the moisture content can be kept fixed by supplying a fixed amount of humidification water relative to the volume.

[0042] In addition, if the pushing component 41 is made to perform a reciprocating motion, the storage height of the ash storage chamber 10 is lowered and out of the detection of the altimeter 50. The ash pushing device 40 is on standby until incineration ash is added from the waste incinerator to the ash storage chamber 10 and the altimeter 50 detects the incineration ash again. In other words, the conventional ash pushing device 40 always operates according to a fixed cycle. In contrast, in the present embodiment, the so-called "ash height control" is performed in which the pushing component 41 is made to operate once after the storage height of the ash storage chamber 10 reaches a specified height. Through this control, the number of operations of the ash pushing device 40 can be set to the minimum number of times necessary to match the amount of ash added from the waste incinerator, and the wear caused by the sliding of the pushing component 41 and the amount of ash returned to the back side of the pushing component 41 in proportion to the number of operations can be reduced.

[0043] In this way, the incineration ash humidification and discharge device 1 of the present embodiment described above comprises: an ash storage chamber 10 for incineration ash to be put into; an ash humidifying device 20 for supplying humidification water to the incineration ash; an ash discharge passage 30 connected to the side of the ash storage chamber 10; an ash pushing device 40 provided at the side 13 of the ash storage chamber 10 opposite to the ash discharge passage 30 and having a pushing member 41 that reciprocates relative to the ash discharge passage 30; and a height meter 50 provided at a position higher than the inlet 30A of the ash discharge passage 30 and detecting the height of the incineration ash stored in the ash storage chamber 10. Furthermore, when the height meter 50 detects the incineration ash, the ash pushing device 40 causes the pushing member 41 to reciprocate once, and the ash humidifying device 20 supplies humidification water to the incineration ash each time the pushing member 41 reciprocates, and the humidification water is in a fixed ratio relative to the volume of the incineration ash pushed to the ash discharge passage 30 by one reciprocating motion of the pushing member 41. According to this configuration, the moisture content of the incineration ash can be freely adjusted, and the incineration ash humidifying and discharging device 1 that can reduce the maintenance frequency is obtained.

[0044] In addition, in the present embodiment, the ash humidifying device 20 has a first humidifying water supply unit 21 that supplies humidifying water from the bottom 14 of the ash storage chamber 10. According to this configuration, since the incineration ash in the upper part of the ash storage chamber 10 becomes a dry ash environment, the ash is less likely to adhere to the height gauge 50, and the height gauge 50 is less likely to malfunction. In addition, by setting the supply position of the humidifying water to the bottom 14 of the ash storage chamber 10, the incineration ash discharged by the pushing member 41 can be selectively humidified. In addition, a residence time of several hours can be ensured until the ash is humidified and discharged from the outlet 30B of the ash discharge channel 30. Therefore, even if the moisture content of the incineration ash near the supply position of the humidifying water is somewhat deviated, the moisture content can be made uniform at the outlet 30B of the ash discharge channel 30.

[0045] In addition, in the present embodiment, the first humidification water supply unit 21 supplies humidification water from the back side of the pushing member 41 through the gap between the pushing member 41 and the sliding lining 15 provided at the bottom 14 of the ash storage chamber 10. According to this configuration, even if a humidification water supply pipe is not separately connected to the bottom 14 of the ash storage chamber 10, humidification water can be supplied to the bottom 14 of the ash storage chamber 10 in a manner of seeping out from the gap between the pushing member 41 and the sliding lining 15.

[0046] In addition, in the present embodiment, the ash humidifying device 20 further includes a second humidifying water supply unit 22 for supplying humidifying water from the top of the ash discharge passage 30. According to this configuration, when the humidifying water supply position is provided only at the bottom 14 of the ash storage chamber 10, if the moisture content near the outlet 30B of the ash discharge passage 30 deviates and the moisture content of the upper part of the incineration ash becomes low, the humidifying water can be sprayed from the top of the ash discharge passage 30 to adjust the moisture content.

[0047] In addition, in the present embodiment, the second humidification water supply unit 22 supplies humidification water from a space portion 31a convex upwardly provided at the top near the inlet of the ash discharge passage 30. According to this configuration, it is possible to ensure a retention time of several hours until the ash is humidified near the inlet of the ash discharge passage 30 and discharged from the outlet 30B of the ash discharge passage 30. Therefore, even if the moisture content of the incineration ash near the supply position of the humidification water is slightly deviated, the moisture content can be made uniform at the outlet 30B of the ash discharge passage 30.

[0048] In addition, in this embodiment, the humidification water contains a chelate compound that inhibits the dissolution of heavy metals from the incineration ash. According to this configuration, the incineration ash is uniformly humidified, so by premixing the chelate compound (heavy metal dissolution inhibitor) into the humidification water, the heavy metal dissolution standard of the incineration ash can also be met.

[0049] (Example)

[0050] Below, make the effect of the present invention clearer through embodiment.In addition, the present invention is not limited to the following embodiment, can be changed and implemented within the scope of not changing its purpose.In addition, in the following description, for the same or equivalent structure as the above-mentioned embodiment, mark the same figure mark, and simplify or omit its description.

[0051] Figure 3 1 is a diagram showing the configuration of an incineration ash humidifying and exhausting device 100 according to a comparative example.

[0052] like Figure 3 As shown, the comparative example of the incineration ash humidification and discharge device 100 has an ash storage chamber 10, an ash discharge channel 30 and an ash pusher 40, but does not have the above-mentioned ash humidification device 20 and the height meter 50. The ash storage chamber 10 stores humidification water, and the incineration ash is put into the liquid from above.

[0053] Figure 4 1 is a graph for evaluating the performance of the incineration ash humidification and exhaust device 100 of the comparative example. The evaluation is lower in the order of A, B, and C. Figure 6 , Figure 8 The same is true in Chinese.

[0054] In the incineration ash humidification and discharge device 100, the incineration ash is once completely immersed in water, so that although the incineration ash is uniformly humidified, the moisture content of the incineration ash fluctuates within the range of 20 to 25% and cannot be controlled. Therefore, the evaluation of moisture content is C. In addition, in the incineration ash humidification and discharge device 100, the incineration ash is completely wetted by the humidification water, so the effect of the chelate is high. Therefore, the evaluation of heavy metal dissolution inhibition is A. In addition, the incineration ash is completely wetted by the humidification water, so the effect of scattering inhibition of the incineration ash becomes high. Therefore, the evaluation of scattering inhibition is A. On the other hand, in the incineration ash humidification and discharge device 100, the humidification water is stored in the ash storage chamber 10, so that the incineration ash and the humidification water are easy to leak from the gap between the ash storage chamber 10 and the pushing member 41, and the cleaning frequency of the ash push device 40 and the ash disperser not shown in the figure becomes high. Therefore, the evaluation of maintenance is C. That is, in the comparative example, since it is a water seal operation, the control of the pushing member 41 cannot be set to "ash height control" that matches the amount of ash put in, and it becomes a blind gap control, so the number of operations increases. Therefore, the return ash increases in proportion to the number of operations of the pushing member 41, and the wear also increases in proportion to the number of operations.

[0055] Figure 5 1 is a diagram showing the structure of an incineration ash humidifying and exhausting device 1A according to the first embodiment.

[0056] like Figure 5 As shown, the incineration ash humidifying and discharging device 1A of the first embodiment includes an ash storage chamber 10 , an ash humidifying device 20 , an ash discharging passage 30 , an ash pushing device 40 and a height meter 50 , but the ash humidifying device 20 does not include the second humidifying water supply unit 22 described above.

[0057] Figure 6 This is a diagram for evaluating the performance of the incineration ash humidifying and exhausting device 1A according to the first embodiment.

[0058] In the incineration ash humidification and discharge device 1A, humidification water is supplied from the bottom 14 of the ash storage chamber 10, thereby enabling low water level operation and controlling the moisture content of the incineration ash to be below 20%. Therefore, the evaluation on moisture content is A. In addition, in the incineration ash humidification and discharge device 1A, humidification water is supplied from the bottom 14 of the ash storage chamber 10, thereby, compared with the comparative example, wet spots of incineration ash are more likely to be generated, which sometimes affects the effect of chelate and the effect of suppressing the scattering of incineration ash. Therefore, the evaluation on heavy metal dissolution suppression is B, and the evaluation on scattering suppression is B. On the other hand, in the incineration ash humidification and discharge device 1A, low water level operation is performed, thereby reducing the return ash to the back side of the pushing member 41, and the cleaning frequency of the ash pushing device 40 and the ash disperser not shown in the figure becomes lower. Therefore, the evaluation on maintainability is A.

[0059] Figure 7This is a diagram showing the configuration of an incineration ash humidifying and exhausting device 1B according to the second embodiment.

[0060] like Figure 7 As shown, the incineration ash humidification and discharge device 1B of the second embodiment is Figure 1 The illustrated embodiment also has an ash storage chamber 10 , an ash humidifying device 20 , an ash discharge channel 30 , an ash ejecting device 40 and a height meter 50 .

[0061] Figure 8 This is a diagram for evaluating the performance of the incineration ash humidifying and exhausting device 1B according to the second embodiment.

[0062] In the incineration ash humidification and discharge device 1B, humidification water is supplied from the bottom 14 of the ash storage chamber 10 and the upper part of the ash discharge channel 30, and the moisture content of the incineration ash can be controlled to be less than 20%. Therefore, the evaluation of moisture content is A. In addition, in the incineration ash humidification and discharge device 1B, humidification water is also supplied from the upper part of the ash discharge channel 30, thereby, it is difficult to produce wet spots of incineration ash compared with the first embodiment, and the effect of chelate and the effect of suppressing the scattering of incineration ash are improved. Therefore, the evaluation of heavy metal dissolution suppression is A, and the evaluation of scattering suppression is A. In addition, in the incineration ash humidification and discharge device 1B, the moisture content is controlled and low water level operation is performed, thereby, the return ash to the back side of the pushing member 41 is reduced, and the cleaning frequency of the ash push device 40 and the ash disperser not shown is reduced. Therefore, the evaluation of maintenance is A.

[0063] The preferred embodiments and examples of the present invention are described and described above, but it should be understood that these are examples of the present invention and should not be considered as limiting. Additions, omissions, substitutions and other changes can be made without departing from the scope of the present invention. Therefore, the present invention should not be considered as limited by the above description, but is limited by the technical solution.

[0064] For example, the incineration ash humidification discharge device 1 can also be operated by changing the operation method. Figure 3 , Figure 5 , Figure 7 For example, if you want to focus on suppressing the scattering of incineration ash, you can also set Figure 3 The water seal operation is carried out according to the state of suppressing the scattering of incineration ash. Figure 5 , Figure 7 Operation transfer.

[0065] In addition, for example, the incineration ash humidification and discharge device 1 can simply adjust the moisture content without complicated detection mechanisms and controls. For example, during the initial adjustment of the equipment, 25 kg of humidification water is supplied in such a way that the moisture content becomes 20%, but when the moisture content obtained by the sample measurement becomes 18%, the supply of humidification water is increased by the difference from the 2% during the next operation of the pushing member 41, thereby being able to approach the target 20%. In addition, when the moisture content obtained by the sample measurement becomes 22%, it can be dealt with in the same way by reducing the supply of humidification water. In this way, a conversion formula is made such that the moisture content is Y% when humidifying with X kg of humidification water during the initial adjustment of the equipment, and it is stored in the device, thereby being able to simply adjust the moisture content. Therefore, there is no need for a permanent moisture content instrument and complex control based on it.

[0066] In addition, for example, in the above-mentioned embodiment, the moisture content is set to 20%, but it is not limited to a configuration in which the moisture content is specified by data and matched to the moisture content. Although it is desirable to reduce the moisture content as much as possible in order to reduce the amount of incineration ash carried out, the following control can be performed based on the consideration that scattering is not desired during transportation: when the humidified incineration ash finally falls from the ash disperser to the ash bin, the scattering condition is observed by a monitoring camera, and if the ash scattering is obvious, the supply of humidifying water is slightly increased. From this point of view, the present invention can also be used in a manner that does not require complicated instruments and controls.

Claims

1. An incineration ash humidification discharge device, wherein: have: Ash storage room for incineration ash; an ash humidifying device for supplying humidifying water to the incineration ash; an ash discharge passage connected to a side of the ash storage chamber; An ash pushing device is provided at a side portion of the ash storage chamber opposite to the ash discharge passage and has a pushing member that reciprocates relative to the ash discharge passage; and an altimeter which is arranged at a position higher than the entrance of the ash discharge passage and detects the height of the incineration ash stored in the ash storage chamber, When the altimeter detects the incineration ash, the ash pushing device causes the pushing component to perform a reciprocating motion. The ash humidifying device supplies the humidifying water in a fixed ratio to the volume of the incineration ash pushed toward the ash discharge passage by one reciprocating movement of the pushing member each time the pushing member reciprocates.

2. The incineration ash humidification and discharge device according to claim 1, wherein: The ash humidifying device includes a first humidifying water supply unit that supplies the humidifying water from a bottom portion of the ash storage chamber.

3. The incineration ash humidification and discharge device according to claim 2, wherein: The first humidification water supply unit supplies the humidification water from the rear side of the pushing member through a gap between the pushing member and a sliding liner provided at the bottom of the ash storage chamber.

4. The incineration ash humidification and discharge device according to claim 2 or 3, wherein: The ash humidifying device further includes a second humidifying water supply unit that supplies the humidifying water from a top portion of the ash discharge passage.

5. The incineration ash humidification and discharge device according to claim 4, wherein: The second humidification water supply part supplies the humidification water from a space portion convex upwardly provided at a top portion near an inlet of the ash discharge passage.

6. The incineration ash humidification and discharge device according to any one of claims 1 to 3, wherein: The humidification water contains a chelate compound that inhibits dissolution of heavy metals from the incineration ash.

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