Dangerous waste secondary combustion chamber bottom ash removal device

Abstract

The utility model provides an ash removal device at the bottom of a hazardous waste secondary combustion chamber. The ash removal device at the bottom of the hazardous waste secondary combustion chamber comprises an ash removal chamber, a track, a plurality of ash receiving trolleys and an elastic limiting assembly. According to the ash removal device at the bottom of the hazardous waste secondary combustion chamber, the ash receiving trolleys are arranged in the ash removal chamber, the ash receiving trolleys at the front end are clamped through the elastic limiting assemblies, molten ash in the secondary combustion chamber directly falls into the ash receiving trolleys at the front end, and the elastic limiting assemblies relieve limitation after full loading; the full-load ash receiving trolley slides into the temporary storage cavity along the track, and the ash receiving trolley on the rear side automatically slides down and is blocked by the elastic limiting assembly to continue to receive the ash; the full-load ash receiving trolley in the temporary storage cavity is pulled out from the trolley outlet of the ash removal chamber, a new no-load ash receiving trolley is put into the temporary storage cavity from the trolley outlet, continuous ash receiving is achieved by repeating the steps, water vapor is fundamentally prevented from entering the secondary combustion chamber, the coking condition of the secondary combustion chamber is effectively relieved, and meanwhile fuel consumption is greatly reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to environmental protection equipment technical field, concretely relates to a dangerous waste two combustion chamber bottom ash removal device. BACKGROUND

[0002] At present, the rotary kiln is usually used to burn the dangerous waste in domestic, and the secondary combustion chamber is used to carry out the secondary combustion to the flue gas of the rotary kiln, so as to reduce the toxic and harmful substances.

[0003] In the use process of the secondary combustion chamber, the molten ash will be produced in the interior. The existing secondary combustion chamber usually adopts the mode of installing the water seal slagging machine at the bottom to clean the ash.

[0004] However, the temperature in the secondary combustion chamber needs to be kept above 1100 DEG C, and the water in the water seal slagging machine at the bottom enters the secondary combustion chamber in the form of steam due to the heat radiation, which makes the molten ash meet the steam on the upper end of the slagging machine and a large amount of coking is caused, so that the slagging machine is easily blocked after a long time without cleaning, which seriously affects the daily operation, and a large amount of steam entering the secondary combustion chamber will absorb the heat in the secondary combustion chamber, so that more fuel is needed to maintain the temperature. TECHNICAL SOLUTION

[0005] The utility model provides a dangerous waste two combustion chamber bottom ash removal device, which aims at solving the technical problems in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the technical scheme of providing a dangerous waste two combustion chamber bottom ash removal device, which comprises:

[0007] The ash removal chamber is suitable to be arranged at the bottom of the secondary combustion chamber and is communicated with the secondary combustion chamber. The ash removal chamber is provided with an inlet and an outlet at two ends, and the inlet and the outlet are provided with sealing doors. The ash removal chamber is provided with a temporary storage cavity and an ash receiving cavity. The ash receiving cavity is suitable to be communicated with the slagging port at the bottom of the secondary combustion chamber. The temporary storage cavity is arranged at one side of the ash receiving cavity.

[0008] The track comprises an inclined section and a horizontal section. The inclined section is arranged in the ash receiving cavity, and the horizontal section is arranged in the temporary storage cavity and is connected with the lower end of the inclined section.

[0009] A plurality of ash receiving trolleys are arranged in the ash receiving cavity and are sequentially arranged on the inclined section of the track. The ash receiving trolleys are suitable to move along the track. The ash receiving trolley close to the temporary storage cavity is suitable to be aligned with the slagging port at the bottom of the secondary combustion chamber and is used to receive the ash.

[0010] The elastic limiting assembly is connected with the inclined section of the track and is suitable to abut against the ash receiving trolley close to the temporary storage cavity, so as to limit the downward sliding of the ash receiving trolley and release the limitation when the ash receiving trolley is fully loaded.

[0011] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the ash receiving cavity is internally provided with two ash receiving trolleys for alternately receiving ash.

[0012] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the ash receiving trolley comprises:

[0013] The car hopper is provided with an opening at the bottom, and a chute is formed in the lower part of the car hopper and extends transversely through the car hopper; the bottom of the car hopper is provided with a walking wheel, and the walking wheel is matched with the track; and

[0014] A bottom plate is inserted into the chute and is in sliding sealing cooperation with the car hopper.

[0015] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the lower side of the chute is inclined downward from the inside to the outside.

[0016] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the bottom plate comprises a first half bottom and a second half bottom, the first half bottom and the second half bottom are arranged side by side, one end of the first half bottom towards the second half bottom is provided with a V-shaped protrusion, and one end of the second half bottom towards the first half bottom is provided with a V-shaped groove matched with the V-shaped protrusion.

[0017] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, one end of the first half bottom and the second half bottom away from each other extends out of the car hopper.

[0018] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the elastic limiting component comprises a limiting block and a limiting spring, the inclined section of the track is provided with a containing groove, the limiting block is slidingly arranged in the containing groove and is adapted to protrude from the track and abut against the lower part of the walking wheel of the ash receiving trolley, and the limiting spring is arranged in the containing groove and is used to support the limiting block.

[0019] In a possible implementation manner of the dangerous waste two-burner bottom ash removal device, the device further comprises a sensor and an alarm component, the sensor is connected with the ash removal chamber and is used to detect whether the ash receiving trolley is in the temporary storage cavity, the alarm component is used to send an alarm when the sensor detects that the ash receiving trolley slides into the temporary storage cavity, and an observation window is arranged on the side wall of the ash removal chamber corresponding to the temporary storage cavity.

[0020] The hazardous waste two-burn chamber bottom ash cleaning device has the advantages that compared with the prior art, the hazardous waste two-burn chamber bottom ash cleaning device provided by the utility model sets a plurality of ash receiving trolleys in the ash cleaning chamber, and the elastic limiting assembly is used for clamping the ash receiving trolley at the front end, the molten ash in the two-burn chamber directly falls into the ash receiving trolley at the front end, the elastic limiting assembly is released after the ash receiving trolley is fully loaded, the fully loaded ash receiving trolley slides along the track to the temporary storage cavity, the ash receiving trolley at the back automatically slides down and is blocked by the elastic limiting assembly, and the ash receiving trolley continues to receive the ash; the fully loaded ash receiving trolley in the temporary storage cavity is pulled out from the exit of the ash cleaning chamber, and a new empty ash receiving trolley is put into the exit, and the above steps are repeated, so that the ash is continuously received, the water vapor is fundamentally prevented from entering the two-burn chamber, the coking of the two-burn chamber is effectively alleviated, and the fuel consumption is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A perspective structural schematic view of the hazardous waste two-burn chamber bottom ash cleaning device provided by the utility model embodiment is shown in the figure.

[0022] Figure 2 A top view structural schematic view of the hazardous waste two-burn chamber bottom ash cleaning device provided by the utility model embodiment is shown in the figure.

[0023] Figure 3 A sectional view along the line A-A in the figure. Figure 2

[0024] Figure 4 An enlarged view of the A part in the figure. Figure 3

[0025] Figure 5 A partial sectional view along the line B-B in the figure. Figure 3

[0026] A perspective structural schematic view of the ash receiving trolley in the hazardous waste two-burn chamber bottom ash cleaning device provided by the utility model embodiment is shown in the figure. Figure 6 Explanation of the reference signs:

[0027] 10, ash cleaning chamber; 11, entry; 12, exit; 13, temporary storage cavity; 14, ash receiving cavity;

[0028] 20, track; 30, ash receiving trolley; 31, hopper; 32, first half bottom; 321, V-shaped protrusion;

[0029] 33, second half bottom; 34, traveling wheel; 41, limiting block; 42, limiting spring; 51, sensor;

[0030] 52, alarm assembly; 60, two-burn chamber.

[0031] DETAILED DESCRIPTION

[0032] ​​​In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to explain the present application, and are not intended to limit the present application.

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. The description of the at least one exemplary embodiment below is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0034] It should be noted that the terms used herein are only intended to describe specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form, unless the context clearly indicates otherwise, and it should be understood that, when the terms "comprise" and / or "include" are used in the specification, there is a feature, step, operation, device, component and / or combination thereof.

[0035] Unless specifically stated otherwise, the relative arrangement of components and steps, numerical expressions, and numerical values set forth in the various embodiments described herein are not limiting. It should be understood that the dimensions of the various parts shown in the drawings are not necessarily to scale. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification, where appropriate. In all examples shown and discussed herein, any specific values should be interpreted as merely illustrative, and not as a limitation. Thus, other example embodiments of the exemplary embodiments can have different values. It should be noted that like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be discussed further in subsequent drawings.

[0036] In the description of the application, it should be understood that the orientation words such as "front, back, up, down, left, right", "transverse, vertical, perpendicular, horizontal" and "top, bottom" and the like indicated orientation or position relationship is generally based on the orientation or position relationship shown in the drawings, only for the convenience of describing the application and simplifying the description, without making the opposite statement, these orientation words do not indicate and imply that the device or element referred to must have a particular orientation or be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the scope of protection of the application; the orientation words "inner, outer" refer to the inner and outer relative to the contour of each component.

[0037] For the convenience of description, spatial relative terms such as "over", "above", "upper surface", "upper" and the like can be used herein to describe the spatial position relationship of one device or feature with other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the drawings. For example, if the device in the drawing is inverted, the device described as "above" or "over" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways, and the spatial relative description used herein is interpreted accordingly.

[0038] In addition, it should be noted that the use of "first", "second" and the like to define parts has only the purpose of facilitating the distinction of the corresponding parts, and the above words have no special meaning unless otherwise stated, therefore, it cannot be understood as a limitation on the scope of protection of the application.

[0039] Please see Figures 1 to 6The present invention describes the bottom cleaning device for the secondary combustion chamber of hazardous waste. The bottom cleaning device for the secondary combustion chamber 60 includes a cleaning chamber 10, a track 20, several ash-receiving trolleys 30, and an elastic limiting assembly. The cleaning chamber 10 is adapted to be located at the bottom of the secondary combustion chamber 60 and communicates with it. The cleaning chamber 10 has an inlet 11 and an outlet 12 at both ends, and both inlet 11 and outlet 12 are equipped with sealing doors. The cleaning chamber 10 contains a temporary storage chamber 13 and an ash-receiving chamber 14, the ash-receiving chamber 14 being adapted to communicate with the slag outlet at the bottom of the secondary combustion chamber 60. The temporary storage chamber 13 is located on one side of the ash-receiving chamber 14. The track 20 includes an inclined section and a horizontal section. The ash receiving section is laid in the ash receiving cavity 14, and the horizontal section is laid in the temporary storage cavity 13, with one end connected to the lower end of the inclined section; several ash receiving trolleys 30 are arranged in the ash receiving cavity 14 and sequentially on the inclined section of the track 20, and the ash receiving trolleys 30 are adapted to move along the track 20; the ash receiving trolleys 30 near the temporary storage cavity 13 are adapted to align with the slag outlet at the bottom of the secondary combustion chamber 60 to collect ash and slag; the elastic limiting component is connected to the inclined section of the track 20 and is adapted to abut against the ash receiving trolleys 30 near the temporary storage cavity 13 to limit the ash receiving trolleys 30 from sliding down, and the restriction is released after the ash receiving trolleys 30 are fully loaded.

[0040] The beneficial effects of the bottom cleaning device for the secondary combustion chamber 60 of hazardous waste provided in this embodiment of the present invention are as follows: Compared with the prior art, the bottom cleaning device for the secondary combustion chamber 60 of hazardous waste provided in this embodiment of the present invention has several ash-collecting trolleys 30 set in the cleaning chamber 10, and the front ash-collecting trolley 30 is locked by an elastic limiting component. The molten ash in the secondary combustion chamber 60 falls directly into the front ash-collecting trolley 30. After being fully loaded, the elastic limiting component is released, and the fully loaded ash-collecting trolley 30 slides along the track 20 into the temporary storage chamber 13. The ash-collecting trolley 30 on the rear side automatically slides down and is blocked by the elastic limiting component, continuing to collect ash. The fully loaded ash-collecting trolley 30 in the temporary storage chamber 13 is pulled out from the outlet 12 of the cleaning chamber 10, and a new empty ash-collecting trolley 30 is put in from the outlet. This process is repeated to achieve continuous ash collection, fundamentally preventing water vapor from entering the secondary combustion chamber 60, effectively alleviating the coking situation in the secondary combustion chamber 60, and greatly reducing fuel consumption.

[0041] like Figure 2 As shown, in a specific embodiment of the ash removal device at the bottom of the secondary combustion chamber 60 for hazardous waste provided in this utility model, two ash receiving trolleys 30 are provided in the ash receiving chamber 14 for alternating ash receiving.

[0042] It should be noted that after the ash receiving trolley 30 at the front end is fully loaded and pulled out of the ash cleaning chamber 10, the empty ash cleaning trolley is put into the ash cleaning chamber 10 through the inlet 11, so that there are at least two ash receiving trolleys 30 in the ash receiving chamber 14, so as to achieve uninterrupted continuous ash receiving.

[0043] like Figures 4 to 6As shown in the specific embodiment of the bottom ash removal device of the hazardous waste two combustion chamber 60 provided in the embodiment of the utility model, the ash receiving trolley 30 comprises a car hopper 31 and a bottom plate, the car hopper 31 is provided with an opening at the bottom, and a sliding groove is formed in the lower part of the car hopper 31 and extends through the car hopper 31 horizontally; the bottom part of the car hopper 31 is provided with a travelling wheel 34, and the travelling wheel 34 is matched with the track 20; the bottom plate is inserted into the sliding groove and is in sliding sealing cooperation with the car hopper 31.

[0044] It should be noted that the ash residue is sticky and not easy to pour directly, therefore, the sliding bottom plate is arranged on the car hopper 31, when the ash residue in the car hopper 31 needs to be cleaned, the bottom plate is directly pulled out, the ash residue adhered to the bottom plate is scraped off by the car hopper 31, and then the ash residue on the side wall is removed, so that the cleaning efficiency is greatly improved.

[0045] Further, as shown in the specific embodiment of the bottom ash removal device of the hazardous waste two combustion chamber 60 provided in the embodiment of the utility model, Figure 4 the lower side of the sliding groove is inclined downward from inside to outside, so as to avoid the accumulation of ash residue in the sliding groove and block the sliding groove.

[0046] Specifically, as shown in the specific embodiment of the bottom ash removal device of the hazardous waste two combustion chamber 60 provided in the embodiment of the utility model, Figure 5 and Figure 6 the bottom plate comprises a first half bottom 32 and a second half bottom 33, the first half bottom 32 and the second half bottom 33 are arranged side by side, one end of the first half bottom 32 towards the second half bottom 33 is provided with a V-shaped protrusion 321, and one end of the second half bottom 33 towards the first half bottom 32 is provided with a V-shaped groove matched with the V-shaped protrusion 321, so as to improve the sealing performance and avoid leakage. One end of the first half bottom 32 and the second half bottom 33 away from each other extends out of the car hopper 31, so as to facilitate the pulling out of the first half bottom 32 and the second half bottom 33.

[0047] It should be noted that the bottom plate is provided as the first half bottom 32 and the second plate bottom, which can effectively reduce the displacement distance and be more easily pulled out.

[0048] As shown in the specific embodiment of the bottom ash removal device of the hazardous waste two combustion chamber 60 provided in the embodiment of the utility model, Figure 3 and Figure 5 the elastic limiting component comprises a limiting block 41 and a limiting spring 42, a containing groove is formed on the inclined section of the track 20, the limiting block 41 is slidably arranged in the containing groove and is adapted to abut against the lower part of the travelling wheel 34 of the ash receiving trolley 30; and the limiting spring 42 is arranged in the containing groove and is used to support the limiting block 41.

[0049] It should be noted that when the ash receiving trolley 30 is not full, the pressure on the limiting block 41 is less than the supporting force of the spring, and the limiting block 41 blocks the downward sliding of the ash receiving trolley 30; when the ash receiving trolley 30 is full, the pressure on the limiting block 41 is greater than the supporting force of the spring, and the limiting block 41 is pressed into the accommodating groove, and the full ash receiving trolley 30 slides along the track 20 to the temporary storage cavity 13; the rear empty ash receiving trolley 30 slides to the limiting block 41 and is blocked again, and starts to receive ash.

[0050] As shown in Figure 1 and Figure 2 In a specific embodiment of the ash removal device at the bottom of the hazardous waste two-burner chamber 60 provided in the embodiment of the utility model, a sensor 51 and an alarm component 52 are further included, the sensor 51 is connected with the ash removal chamber 10 and is used to detect whether the ash receiving trolley 30 is in the temporary storage cavity 13, the alarm component 52 is used to send an alarm when the sensor 51 detects that the ash receiving trolley 30 slides to the temporary storage cavity 13; an observation window is arranged on the side wall of the ash removal chamber 10 corresponding to the temporary storage cavity 13.

[0051] It should be noted that the sensor 51 is an infrared sensor 51, a proximity switch or the like, which can be triggered after the ash receiving trolley 30 enters the temporary storage cavity 13. The alarm component 52 is a buzzer or a warning light, which is used to send an alarm in the form of sound or light after the sensor 51 is triggered, so as to remind the staff. The observation window is used to actually observe the inside of the temporary storage cavity 13, so as to be discovered in time when the sensor 51 is mistakenly triggered.

[0052] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A hazardous waste dual-chamber bottom ash cleaning device, characterized in that, The utility model relates to a dust cleaning room, a track and a flexible limiting assembly. The dust cleaning room is suitable for being arranged at the bottom of the second combustion chamber and is communicated with the second combustion chamber. The dust cleaning room is provided with an inlet and an outlet at two ends respectively, and the inlet and the outlet are provided with sealing doors. The dust cleaning room is provided with a temporary storage cavity and a dust receiving cavity. The dust receiving cavity is suitable for being communicated with a slag outlet at the bottom of the second combustion chamber. The track includes an inclined section and a horizontal section.

2. The hazardous waste incinerator bottom ash cleaning device as claimed in claim 1, wherein The inclined section is arranged in the dust receiving cavity, and the horizontal section is arranged in the temporary storage cavity and is connected with the lower end of the inclined section.

3. The hazardous waste incinerator bottom ash cleaning device of claim 1 wherein, The dust receiving trolley is suitable for moving along the track. The dust receiving trolley close to the temporary storage cavity is suitable for being aligned with the slag outlet at the bottom of the second combustion chamber and is used for receiving the dust and slag. The flexible limiting assembly is connected with the inclined section of the track and is suitable for abutting against the dust receiving trolley close to the temporary storage cavity.

4. The hazardous waste incinerator double combustion chamber bottom ash cleaning apparatus as claimed in claim 3, wherein The flexible limiting assembly is used for limiting the downward sliding of the dust receiving trolley and is released after the dust receiving trolley is fully loaded.

5. The hazardous waste incinerator double combustion chamber bottom ash cleaning apparatus as claimed in claim 3, wherein The dust receiving cavity is provided with two dust receiving trolleys for alternately receiving dust.

6. The hazardous waste incinerator double combustion chamber bottom ash cleaning apparatus as claimed in claim 5, wherein The dust receiving trolley includes a trolley bucket and a bottom plate.

7. The hazardous waste incinerator double combustion chamber bottom ash cleaning apparatus as claimed in claim 1, wherein The trolley bucket is provided with a sliding groove at the lower part.

8. The hazardous waste incinerator bottom ash cleaning device of claim 1 wherein, The bottom plate is inserted into the sliding groove and is in sliding sealing cooperation with the trolley bucket. The sliding groove is inclined downward from the inside to the outside. The bottom plate includes a first half bottom and a second half bottom. The first half bottom is provided with a V-shaped protrusion at one end facing the second half bottom. The second half bottom is provided with a V-shaped groove at one end facing the first half bottom. The first half bottom and the second half bottom are arranged side by side. The flexible limiting assembly includes a limiting block and a limiting spring. The track is provided with a containing groove at the inclined section. The limiting block is arranged in the containing groove and is suitable for abutting against the lower part of the running wheel of the dust receiving trolley. The limiting spring is arranged in the containing groove and is used for supporting the limiting block. The utility model further includes a sensor and an alarm assembly. The sensor is connected with the dust cleaning room and is used for detecting whether the dust receiving trolley is in the temporary storage cavity. The alarm assembly is used for sending an alarm when the sensor detects that the dust receiving trolley slides into the temporary storage cavity. The dust cleaning room is provided with an observation window on the side wall corresponding to the temporary storage cavity.

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