JPH10263496A - Malodor preventing device in garbage treatment pit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce deodorizing power to the utmost while certainly preventing a malodor from leaking from a garbage treatment pit to the outside. SOLUTION: The interior of a building 1 is partitioned into a treatment chamber 5 and a front chamber 4 and the front and rear of the front chamber 4 are constituted of a double shutter structure. The upper surface of a garbage treatment pit 8 is partitioned by a demarcation wall 14 to make it possible to hermetically close a garbage housing space 10. The demarcation wall 14 is made liftable along guide posts 13, 13 and an extensible and contractible lead-out pipe 61 is connected to the demarcation wall 14 and the demarcation wall 14 is constituted of a lift frame 15 and an opening and closing shutter 16 and the opening and closing shutter 16 is opened in connection with the detection of the opening operation of an inside shutter 3 by an opening and closing operation detection means 12. The demarcation wall 14 is operated so as to rise and fall, corresponding to the upper surface position of the garbage in the garbage housing space detected by a garbage amt. detection means 17 to be altered and adjusted in its up and down direction position and the vol. of the garbage housing space is altered so as to be expanded and contracted. A malodor is sucked from the hermetically closed garbage housing space through the lead-out pipe 61 by the operation of a blower 64 to be deodorized in a deodorizing tower 65.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waste treatment pit for storing waste and the like for incineration and fermentation treatment of the waste and the like in a waste incineration plant and the like. The present invention relates to an odor prevention device used to prevent odor.

[0002]

2. Description of the Related Art Heretofore, as a device for preventing odors in a waste disposal pit of this kind, there has been known a device in which a door provided with a waste disposal pit is provided with a so-called double shutter structure (for example, Japanese Patent Laid-Open Publication No. 57-57). -12875). This is the outside of the building as an entrance,
A pair of inner and inner shutters are provided, and a shutter is provided for each of them, and only one of the shutters is opened when a garbage carrying vehicle enters or exits, thereby preventing the odor of the garbage disposal pit from leaking out of the building. It is intended to suppress and prevent it.

[0003] Other conventional odor control devices include:
It is also known to provide a lid that can be opened and closed at the upper end opening of the refuse disposal pit and to open a suction hole for deodorizing the odor to the side wall of the refuse disposal pit. No. 57-127423). In this device, when the garbage carrying vehicle arrives and the garbage is not thrown in, the lid is closed, the odor in the garbage disposal pit is sucked from the suction hole, and the inside is made into a negative pressure state. The deodorization of the inhaled odor is performed while preventing diffusion to the air.

[0004]

However, in the above-mentioned conventional double shutter structure, when the inner shutter is in the open state, the odor leaking between the pair of inner and outer shutters causes the outer shutter to be in the open state. In this case, the odor will be diffused to the outside, but the odor must be sucked by the deodorizing device in the entire interior space of the building where the waste treatment pit is installed, and the scale of the deodorizing device must be increased. No longer.

[0005] Further, in the case where a lid is provided at the upper end opening of the refuse disposal pit and the suction hole is opened on the side wall of the refuse disposal pit, the odor suction target by the deodorizing device is limited to the internal space of the refuse disposal pit. Although the required suction capacity of the deodorizing device side can be reduced, the suction space is the entire internal space of the refuse disposal pit partitioned by the lid, and the amount of refuse contained in the refuse Regardless of the situation, the volume will always be constant. Therefore, it is not possible to sufficiently reduce the required suction capacity of the deodorizing device.

The present invention has been made in view of such circumstances, and an object of the present invention is to reliably prevent a malodor from a refuse disposal pit from leaking to the outside and to remove the odor. It is to reduce power as much as possible.

[0007]

In order to achieve the above-mentioned object, the invention according to claim 1 prevents malodor in a waste disposal pit configured to deodorize by sucking odor in the waste disposal pit. The apparatus is premised, and the apparatus is provided with a volume changing means for changing the volume of the refuse storage space in a state where the refuse storage space in which the refuse in the refuse disposal pit is stored is sealed. .

In the above configuration, the volume of the closed garbage storage space in the garbage disposal pit can be changed by the volume changing means, so that the volume of the garbage stored in the garbage storage space depends on the amount of garbage stored. The volume of the garbage storage space can be changed. For this reason, it is possible to reduce the volume of the garbage accommodating space from which the odor is sucked as much as possible according to the amount of the garbage. The power can be reduced as much as possible. In addition, since the dust accommodating space is sucked in a sealed state to be in a negative pressure state, the leakage and diffusion of bad smell to the outside is surely prevented.

According to a second aspect of the present invention, the volume changing means in the first aspect of the present invention constitutes a partition wall for partitioning the upper surface of the waste accommodating space so as to be sealable, and the partition wall constitutes a waste disposal pit. Lifting means for vertically moving along the side wall.

In the case of the above construction, the contents of the volume changing means are specifically specified, and the operation according to the first aspect of the invention can be reliably obtained. That is, since the upper surface of the refuse storage space is partitioned by the partition wall, the refuse storage space can be reliably sealed. In addition, since the partition wall is moved up and down along the side wall of the refuse disposal pit by the elevating means, and the vertical position is changed, the volume of the lower garbage accommodating space is changed in accordance with the change in the vertical position. become.

According to a third aspect of the present invention, an opening / closing means for opening and closing substantially the entire surface of the partition wall in the second aspect of the present invention is provided.

In the case of the above construction, it is possible to reliably maintain the dust storage space in a closed state by keeping the opening / closing means in a closed state, while opening the opening / closing means to open the upper surface of the dust storage space. Since the partitioning walls are open, it is possible to put waste into the waste disposal pit from above. If the amount of refuse in the refuse storage space increases with the introduction of the new refuse, the partition wall with the opening / closing means is moved upward in accordance with the amount of refuse to minimize the amount of refuse stored in accordance with the amount of refuse. Can change to space.

According to a fourth aspect of the present invention, in the invention of the third aspect, a pair of garbage carry-in openings arranged in series in the inward and outward directions in the building where the garbage disposal pit is provided;
A pair of inner and outer doors that openably close the pair of openings, a front chamber formed between the pair of doors, and a processing chamber in which the front chamber and the waste disposal pit are disposed. Opening / closing operation detecting means for detecting the opening / closing operation of the inner opening / closing door that separates between the doors, wherein the opening / closing means is interlocked with the opening / closing operation of the opening / closing door upon receiving the opening / closing operation detection signal from the opening / closing operation detecting means. The opening and closing operation is performed.

In the case of the above configuration, the building is divided into a processing room and a front room, and has a double shutter structure in which opening and closing doors are provided before and after the front room. Then, for example, when the garbage is carried in by the garbage carrying vehicle, the outer opening / closing door is opened while the inner opening / closing door is kept closed, and the garbage carrying vehicle is put into the front room. Next, the outer door is returned to the closed state, the inner door is opened, the garbage carrying vehicle faces the processing chamber, and the loaded garbage is put into the garbage processing pit in the processing chamber. At this time, the opening operation of the inner opening / closing door is detected by the opening / closing operation detecting means, whereby the opening / closing means of the partition wall is opened in accordance with the opening operation of the inner opening / closing door. For this reason, it is possible to automatically open the opening / closing means only when the inner opening / closing door is opened, and it is possible to minimize the spread of the offensive odor from the garbage storage space.

According to a fifth aspect of the present invention, in accordance with the second aspect of the present invention, there is provided a waste amount detecting means for detecting a top surface position of the waste stored in the waste storage space, and the volume changing means is provided with the waste amount. The vertical position of the partition wall is changed and adjusted according to the upper surface position of the dust detected by the detecting means.

In the case of the above configuration, when the amount of refuse stored in the refuse storage space increases due to the introduction of new refuse or decreases with the processing in the refuse disposal pit, the upper surface position of the refuse Is detected by the dust amount detecting means, and the vertical position of the partition wall is changed and adjusted according to the upper surface position. For this reason, it is possible to immediately and automatically expand and contract the volume of the garbage storage space according to the change in the amount of garbage in the garbage storage space, and to adjust the volume of the space where the odor is sucked in accordance with the amount of garbage. It is possible to efficiently and as small as possible.

Further, the invention described in claim 6 is the invention according to claim 2.
With respect to the partition wall according to the described invention, the upstream end of the lead-out pipe that leads out the odor of the garbage storage space is connected in communication with the waste storage space, and in addition, the lead-out pipe is configured to be expandable and contractible in the vertical direction. Is what you do.

In the above configuration, since the outlet pipe is vertically expandable and contractible, it is possible to reliably suck the odor in the refuse storage space even if the partition wall is moved up and down and its vertical position is changed and adjusted. become. In addition, since the outlet pipe is connected to the partition wall and communicates with the waste accommodating space, the odor sucked by the outlet pipe is always present in the waste accommodating space between the upper surface of the refuse and the partition wall. It is possible to suck from the thin upper layer, and it is possible to effectively and efficiently suck the odor of garbage, which is a odor generating source.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a refuse incineration plant to which the odor control device according to the embodiment of the present invention is applied, or a refuse storage facility used for composting refuse, and 1 includes a ceiling wall, an outer wall, a partition wall and the like. The formed building, 2 is an outer shutter as an outer opening / closing door, 3 is an inner shutter as an inner opening / closing door, 4 is a front room partitioned between these two shutters 2 and 3, and 5 is the inner shutter 3 and A processing chamber partitioned by the outer wall and the like, 6 is a deodorizing device, and 7 is an overhead traveling crane. Reference numeral 8 denotes a waste disposal pit formed in the processing chamber 5, and reference numeral 9 denotes a volume changing means for changing the volume of the waste accommodating space 10 of the waste disposal pit 8.

The building 1 is configured so that the front chamber 4 and the processing chamber 5 in the interior are substantially sealed, and the pair of shutters 2 and 3 and the front chamber 4 form a double shutter structure. Thereby, when the garbage carry-in vehicle 11 moves in and out, the atmosphere in the building 1 is prevented from being diffused to the external space as much as possible. The inner shutter 3 has an opening / closing operation detecting means 12 for detecting the opening / closing operation.
The opening / closing operation detecting means 12 outputs to the volume changing means 9. The opening / closing operation detecting means 12 may be constituted by a mechanical detecting means such as a limit switch or an optical detecting means such as an optical sensor.

The deodorizing device 6 is connected to the partition wall 14 such that the upstream end is open to the lower surface of the partition wall 14 described later, and the downstream end side is disposed so as to extend upward in the refuse disposal pit 8. A pipe 61, a suction pipe 62 connected to a downstream end of the outlet pipe 61, a filter 63 and a blower 64 interposed in the middle of the suction pipe 62, and a deodorant connected to a downstream end of the suction pipe 62 It is provided with a tower 65 and a discharge pipe 66 for discharging the gas after being deodorized by the deodorization tower 65 to the outside. The outlet pipe 61 is formed, for example, in the shape of a bellows tube, and is formed so as to expand and contract in the up-and-down direction following the elevating operation of the partition wall 14. Then, by operating the blower 64, the atmospheric gas (odor) in the refuse storage space 10 is sucked, and the odor is removed by the deodorizing tower 65 by an adsorption process or the like, and then released from the exhaust pipe 66. The deodorization tower 65 performs deodorization by performing an odor component adsorption treatment using, for example, activated carbon.

The refuse disposal pit 8 is formed in a state where the upper surface is opened by a bottom wall 81 and a peripheral side wall 82, and the refuse pit 8 is merely used to adjust the amount of refuse before the refuse incineration. Various uses such as storing, simply storing garbage before composting, storing garbage internally for fermentation treatment, or internally burning it with a burner (not shown) It is used for.

The volume changing means 9 includes guide columns 13 and 1 erected at appropriate places such as four corners of the side wall 82.
, And a partition wall 14 that can be moved up and down along the guide columns 13 and a drive source (not shown) that moves the partition wall 14 up and down. Of these, the above-described guide columns 13 and the driving source constitute elevating means for elevating the partition wall 14. The partition wall 14 is provided with a lifting frame 15 engaged or fitted to the guide columns 13 so as to be able to move up and down, and the dust storage space 10 is closed by opening and closing the upper surface of the lifting frame 15. And an opening / closing means 16 for partitioning the container into a closed state. On the lower surface side of the partition wall 14, a waste amount detecting means 17 for detecting the amount of waste by detecting the position of the upper surface of the waste stored in the waste storage space 10.
Is provided.

Here, the mechanism for raising and lowering the partition wall 14 by the above-mentioned raising and lowering means includes a method of raising and lowering the partition wall 14 by suspending the partition wall 14 with a chain or a wire and driving the chain or the like.
A variety of methods such as a method in which the side is constituted by a rack or the like, and a pinion or the like meshing with the rack is attached to the partition wall 14 side and the pinion or the like is driven to move up and down can be adopted. Further, as the opening / closing means 16, for example, various types such as a winding type or accordion type shutter or a sliding door configured as a telescopic type can be adopted. In the illustrated example, the opening and closing operation is performed by winding by the electric winder 16a. Further, as the dust amount detecting means 17, an optical sensor composed of a light emitting device and a light receiving device, an arm which is rotated by being in contact with the upper surface of the dust, and which is turned on by the rotating operation of the arm.
-It may be configured by a limit switch that is turned off.

The electric winder 16a is connected to the opening / closing operation detecting means 12 and receives the detection signal about the opening / closing operation from the opening / closing operation detecting means 12 to open / close the opening / closing means 16. Have been. That is, the opening / closing means 16 is opened in conjunction with the opening operation of the inner shutter 3, while the opening / closing means 16 is closed in conjunction with the closing operation of the inner shutter 3. Further, the drive source of the lifting / lowering means is connected to the waste amount detecting means 17 and receives a detection signal from the waste amount detecting means 17 regarding the position of the upper surface of the waste, and moves the partition wall 14 up and down, thereby The vertical position is changed and adjusted so that the partition wall 14 is located at a position immediately above the dust upper surface. In the figure, 91 is the front room 4
Reference numeral 92 denotes an exhaust blower for the processing chamber 5.

In the present embodiment configured as described above, first, the outer shutter 2 is opened while the inner shutter 3 is closed, and the garbage carry-in vehicle 11 is put into the front room 4. After the outer shutter 2 is closed, the inner shutter 3 is opened to position the waste carrying vehicle 11 at a position above the waste processing pit 8 (see FIG. 2). At this time, the opening operation of the inner shutter 3 is determined by the opening / closing operation detecting means 1.
The opening / closing means 16 is automatically opened in conjunction with the opening operation of the inner shutter 3. As a result, the state in which the upper part of the refuse storage space 10 is open is converted. Then, refuse is thrown into the refuse disposal pit 8 from the refuse carry-in vehicle 11 and accumulated in the refuse storage space 10. At this time, a change in the upper surface position of the refuse P accumulated in the refuse storage space 10 is detected by the refuse amount detecting means 17, and the partition wall 14 is raised according to the change. Thereby, the vertical position of the partition wall 14 is automatically changed and adjusted according to the increase of the dust P.

When the introduction of the refuse is completed, the refuse carry-in vehicle 11 is moved into the front chamber 4, and the inner shutter 3 is closed to make the processing chamber 5 hermetically closed. Upon receiving the detection signal, the opening / closing means 16 is automatically closed in conjunction with the closing operation of the inner shutter 3, and the garbage storage space 10 is closed. This garbage storage space 1
The blower 64 is operated in a state in which the refuse storage space 10 is in a negative pressure state, while the odor accumulated in the upper part of the refuse storage space 10 is sucked, and Deodorizing treatment is performed. For example, when the garbage P in the garbage accommodating space 10 decreases over time due to fermentation treatment or the like, the above-mentioned garbage amount detecting means 17 detects a decrease in the upper surface position of the garbage P, and the upper surface position of the garbage P is detected. The partition wall 14 is automatically lowered in accordance with the drop of.

In such an embodiment, since the garbage accommodating space 10 is made to have a negative pressure by the suction operation, the odor generated from the garbage P in the garbage accommodating space 10 may cause odors to be generated in the other processing chambers 5 and the external space. Is reliably prevented. In addition, since the volume of the refuse storage space 10 itself is changed to the minimum volume capable of storing the amount of refuse P by changing and adjusting the vertical position of the partition wall 14 as described above, the power for deodorization, that is, In addition, the amount of power required for the blower 64 for suction and the adsorption capacity of the deodorization tower 65 can be reduced to the minimum necessary. The suction at this time also follows the vertical movement of the partition wall 14 because the outlet pipe 61 can expand and contract in the vertical direction.
Regardless of the vertical position of 4, suction can be reliably performed.

<Other Embodiments> The present invention is not limited to the above-described embodiments, but may employ various other embodiments. That is, when the refuse is not loaded into the refuse storage space 10 from above as in the above-described embodiment, for example, the refuse is sent by pressure from a feed pipe opened on the side wall 82 of the refuse disposal pit 8. Alternatively, the partitioning wall 14 may be constituted by a simple wall without the opening / closing means 16.

[0031]

As described above, according to the odor control device for the refuse disposal pit according to the first aspect of the present invention, the volume of the refuse storage space depends on the amount of refuse stored in the refuse disposal pit. Can be changed, and the volume of the garbage storage space from which the odor is sucked can be reduced as much as possible according to the amount of garbage. And power for deodorization can be reduced as much as possible. In addition, since the garbage accommodating space is sucked in a sealed state, it is possible to reliably prevent the odor from leaking and spreading to the outside.

According to the second aspect of the present invention, the upper surface of the refuse storage space can be partitioned by the partition wall so that the refuse storage space can be reliably sealed. Since the vertical position can be changed and adjusted, the volume of the lower dust storage space can be reliably changed in size. For this reason, the content of the volume changing means can be specifically specified, and the effect of the invention described in claim 1 can be reliably obtained.

According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, the partition wall can be opened by opening the opening / closing means, and the refuse disposal pit can be discharged from above. While the opening / closing means is kept in a closed state, it is possible to reliably maintain the refuse storage space in a closed state.

According to the fourth aspect of the present invention, when dust is thrown in, the opening / closing means can be automatically opened in conjunction with the opening operation of the inner opening / closing door in the double shutter structure. The garbage storage space can be kept closed by keeping the opening / closing means closed at other times, while keeping the opening / closing means closed.

According to the fifth aspect of the present invention, in addition to the effect of the second aspect, the vertical position of the partition wall is automatically changed in accordance with the increase or decrease of the amount of refuse stored in the refuse storage space. Can be adjusted. For this reason, the volume of the garbage storage space can be immediately and automatically expanded and contracted according to the change in the amount of garbage in the garbage storage space, and the volume of the space where the odor is sucked can be efficiently adjusted according to the amount of garbage. And it can be made as small as possible.

According to the sixth aspect of the present invention, in addition to the effect of the second aspect, even if the partition wall is moved up and down and its vertical position is changed and adjusted, the odor in the refuse storage space is drawn out. Can be surely sucked through. Moreover, the odor sucked by the outlet pipe can always be sucked from the relatively thin upper surface layer between the upper surface of the refuse and the partition wall even in the refuse storage space, and the odor of the odor as a odor generating source can be reduced. The suction can be performed effectively and efficiently.

[Brief description of the drawings]

FIG. 1 is an explanatory sectional view showing an embodiment of the present invention.

FIG. 2 is a diagram corresponding to FIG. 1 when refuse is charged.

[Description of Signs] 1 Building 2 Outside shutter (outside opening / closing door) 3 Inside shutter (inside opening / closing door) 4 Front room 5 Processing chamber 6 Deodorizing device 8 Waste treatment pit 9 Volume changing means 10 Waste storage space 12 Opening / closing operation detecting means 13 Guide pillar (elevating means) 14 Partition wall 16 Opening / closing means 17 Waste amount detecting means 61 Outlet pipe 81 Side wall of waste disposal pit P Waste in waste storage space

Claims (6)

[Claims] 1. An odor prevention device for a refuse disposal pit configured to deodorize by sucking odor in the refuse disposal pit, wherein a refuse accommodation space for accommodating refuse in the refuse disposal pit is sealed. An odor preventing device in a refuse disposal pit, comprising a volume changing means for changing the volume of the refuse storage space in a state. 2. The volume changing means according to claim 1, wherein the volume changing means vertically moves along a partition wall partitioning an upper surface of the waste accommodating space so as to be sealable, and a side wall constituting a waste disposal pit. And an elevating means for raising and lowering the odor in the refuse disposal pit. 3. The odor preventing device in a refuse disposal pit according to claim 2, wherein the partition wall is provided with opening / closing means for opening and closing substantially the entire surface of the partition wall. 4. The building according to claim 3, wherein the building in which the waste disposal pit is disposed has a pair of openings for introducing waste disposed in series inward and outward, and the pair of openings is openably closed. A pair of inner and outer doors to be opened and closed, and a front chamber formed between the pair of doors, and an opening and closing operation of an inner door that partitions between the front chamber and a processing chamber in which a waste disposal pit is disposed. Opening / closing operation detecting means for detecting the opening / closing operation, wherein the opening / closing means is configured to receive the detection signal of the opening / closing operation from the opening / closing operation detecting means and open / close in conjunction with the opening / closing operation of the opening / closing door. An odor control device in a refuse disposal pit. 5. The refuse detecting device according to claim 2, further comprising a refuse amount detecting means for detecting a position of the upper surface of the refuse stored in the refuse storage space, wherein the volume changing means includes an upper surface of the refuse detected by the refuse amount detecting means. An odor prevention device in a refuse disposal pit, wherein the vertical position of the partition wall is changed and adjusted according to the position. 6. The garbage storage space according to claim 2, wherein an upstream end of a lead-out pipe for leading out an odor of the garbage storage space is connected to the partition wall in a state of communicating with the garbage storage space, and the lead-out pipe is vertically expandable and contractible. An odor control device in a waste disposal pit, characterized in that the device is configured as follows.