CN112923379A - Slag falling conveying device, slag discharging device and slag discharging method - Google Patents
Slag falling conveying device, slag discharging device and slag discharging method Download PDFInfo
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- CN112923379A CN112923379A CN202110253714.3A CN202110253714A CN112923379A CN 112923379 A CN112923379 A CN 112923379A CN 202110253714 A CN202110253714 A CN 202110253714A CN 112923379 A CN112923379 A CN 112923379A
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- slag
- chain
- drag chain
- falling
- traction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J1/00—Removing ash, clinker, or slag from combustion chambers
- F23J1/06—Mechanically-operated devices, e.g. clinker pushers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasification And Melting Of Waste (AREA)
- Discharge Of Articles From Conveyors (AREA)
Abstract
The invention discloses a slag falling conveying device, a slag discharging device and a slag discharging method, wherein the slag falling conveying device comprises a traction chain, a scraper plate and a direction changing piece, the traction chain can move under the driving of a driving device, the scraper plate is connected to the traction chain so as to enable the scraper plate to move along with the traction chain, the direction changing piece comprises a main body plate and a direction changing plate arranged at the end part of the main body plate, an included angle is formed between the direction changing plate and the main body plate, and the direction changing piece is pressed above the traction chain in a fit mode so as to enable the direction of the traction chain to form the included angle. Through will changing to the piece and pressing and establish in the top of drag chain, realize the drag chain and change to make the trend of drag chain can adapt to the shape in basin, guarantee the wall that the scraper blade can contact the basin, set up like this and can prevent or avoid falling the sediment and get into between drag chain and the change to the piece, thereby improve the operating stability of drag chain, the sediment conveyor that falls can carry the sediment that falls steadily.
Description
Technical Field
The invention relates to the field of hazardous waste incineration treatment, in particular to a falling slag conveying device, a slag discharging device and a slag discharging method.
Background
The hazardous waste incineration refers to a process of treating hazardous waste which is suitable for incineration treatment by adopting a rotary kiln according to a national hazardous waste list. The hazardous waste incineration treatment system generally takes a rotary kiln and a secondary combustion chamber as main incineration process equipment, and a slag discharging device is generally positioned at the tail part of the rotary kiln and below the secondary combustion chamber. The hazardous waste (hazardous waste) to be incinerated and disposed is various and is divided into solid, semi-solid, liquid or a mixture of various forms according to the form; the packaging method is divided into bulk packaging, plastic barreling, iron barrel packaging or paper barrel packaging according to the packaging form; the useless incineration system of danger mode of slagging tap generally adopts scraper type mucking machine, and the flow of slagging tap is: the driving wheel of the slag extractor operates to synchronously drive the traction chains at two ends, the scraper plate operates in the water tank with water sealing function by the traction of the traction chains, and changes direction at the turning position of the track through the pressing wheel, so that the falling slag at the bottom of the water tank is fished out and slides out to the slag discharge port along the inclined bottom plate.
In the prior art, adopt the pinch roller to make the drag chain change to in the bottom of basin, because the useless incineration furnace sediment impurity of danger is many (like iron sheet etc.), cause the drag chain to break away from the pinch roller easily, make the scraper blade break away from the track and can't slag tap, cause the drag chain card even to hinder. In addition, when large-block coking slag falling occurs, slag discharging can be instantly blocked, and certain weak links of the slag discharging machine, such as a driving wheel bearing seat, a chain wheel or a speed reducer, a driving wheel traction chain and the like, can be damaged in an overload mode in severe cases. These deficiencies seriously affect the stable operation of the tapping unit.
Disclosure of Invention
The invention aims to overcome the defect that a slag discharging device in the prior art is unstable in operation, and provides a falling slag conveying device, a slag discharging device and a slag discharging method.
The invention solves the technical problems through the following technical scheme:
a slag conveyer for the slag discharger is composed of a conveying unit consisting of a conveying unit with a conveying belt and a conveying unit
The traction chain can move under the driving of the driving device;
a scraper connected to the drag chain such that the scraper is movable with the drag chain;
the part of changing to, change to including the main part board and set up in the board of changing to of the tip of main part board, change to the board with the main part board is the contained angle, wherein, change to the laminating ground pressure of piece and establish the top of drag chain, so that the trend of drag chain is the contained angle.
In this scheme, the scraper blade is driven to the drive chain, and the scraper blade will fall the sediment and take away to the realization is to falling the transport of sediment. The direction change piece is pressed above the traction chain, so that the direction change of the traction chain is realized, the trend of the traction chain can be adapted to the shape of the water tank, and the scraper plate can be ensured to contact with the wall of the water tank. The angle between the main body plate and the redirection plate can be changed according to the specific shape of the water tank. Relative movement can occur between the drag chain and the direction-changing piece. Compare and change to in utilizing the pinch roller, change to the piece and press and establish in the top of drag chain, set up like this and can prevent or avoid falling the sediment and get into between drag chain and the change to improve drag chain's operating stability, the sediment conveyor that falls can carry the sediment that falls steadily.
Preferably, two ends of the main body plate are respectively provided with the direction-changing plate, and the direction-changing piece is in a U shape.
In this scheme, under the effect of turning to the piece, twice turning to is realized to the drag chain, consequently can adapt to the spill basin, and the scraper blade on the drag chain can be laminated with the basin, guarantees that the sediment that falls in the basin is all taken out.
Preferably, the drag chain is annular and encloses an inner space, the slag falling conveying device further comprises a rotatable pinch roller, the pinch roller is at least partially positioned in the inner space, and the pinch roller abuts against the part of the drag chain below the pinch roller, so that the trend of the drag chain forms an included angle.
In this scheme, pinch roller self can rotate, and the friction between its and the drag chain is less. And the pinch roller is located the below of upper traction chain, and when falling sediment conveyor used to slag discharging device, the pinch roller was not in the basin, consequently can not contact with the sediment that falls, just also can not appear blocking, the off-groove scheduling problem that causes because of the sediment that falls in pinch roller department.
Preferably, an arc-shaped plate is arranged between the main body plate and the redirection plate.
In this scheme, the arc plays the effect of transition between main part board and the bend board, avoids the closed angle to the harm of drag chain, improves the life-span of bend and drag chain.
The utility model provides a slag discharging device, includes the basin, the basin has diapire and lateral wall, its characterized in that, slag discharging device still includes as before the sediment conveyor that falls, change to the piece the main part board with the diapire position is corresponding, change to the board with the lateral wall position is corresponding, so that the scraper blade with the basin laminating.
In this scheme, the basin can set up the below at second combustion chamber slag notch for accept the sediment that falls. The bend is fixed relative to the water tank and enables a scraper on the drag chain to be attached to the water tank, so that the scraper can take out the slag falling in the water tank. The direction changing piece is positioned above the traction chain, and falling slag is not easy to enter between the direction changing piece and the traction chain, so that the operation reliability of the traction chain is improved.
Preferably, the slag discharging device further comprises a large-block falling slag detecting device for detecting whether large-block falling slag exists in the water tank.
In the scheme, when the slag discharging device detects large falling slag (such as falling slag larger than 50 cm), the driving of the traction chain is stopped, and the phenomenon that the large falling slag blocks the operation of the traction chain to cause the damage of the traction chain or the scraper is avoided. The large-block falling slag detection device can be a visual sensor, a laser sensor and the like. The limitation of the large-sized slag drop can be varied according to the actual situation, for example, the minimum value of the large-sized slag drop can be more than 50cm in the case of a large drive power.
Preferably, the tapping device further comprises a torque sensor for detecting a traction torque of the driving device.
In the scheme, when the torque sensor detects that the traction torque of the driving device rises to a preset value, the traction chain or the scraper is probably blocked, at the moment, the driving of the traction chain is stopped, and an auxiliary slag discharging measure is adopted until the normal operation condition is recovered. The size of the preset value can be changed according to actual conditions so as to meet different working requirements.
Preferably, the slag discharging device further comprises a shell, the slag conveying device is arranged in the shell, and a slag discharging port is formed in the end part of the shell to discharge falling slag.
In this scheme, the sediment that falls passes through the slag notch discharge slag discharging equipment, and the sediment conveyor that falls can be fixed through the casing. The slag discharge port may be provided at one end of the housing and positioned higher than the water tank.
A tapping method, characterized in that it is applied to a tapping device as described above, comprising:
injecting water into the water tank to reach a preset water level;
the driving device drives the traction chain to move, and the scraper plate takes out the falling slag in the water tank.
In this scheme, owing to adopted above-mentioned slag discharging device, the sediment that falls is difficult to get into between redirection piece and the drag chain to drag chain operational reliability has been improved, therefore the slag discharging device can utilize this method of slagging tap to realize steadily, reliably operation.
Preferably, the tapping method is applied to the tapping device as described above, and comprises the following steps:
and when the large-block falling slag detection device detects that large-block falling slag exists in the water tank, the traction chain stops moving.
In this scheme, when detecting the bold and fall the sediment, for avoiding the bold to fall the sediment card and hinder the operation of drag chain, then stop the drag chain operation to can discharge the sediment that falls through other supplementary slag discharging modes.
Preferably, the tapping method is applied to the tapping device as described above, and comprises the following steps:
and when the torque sensor detects that the traction torque of the driving device is greater than a preset value, the traction chain stops moving.
In the scheme, when the torque sensor detects that the traction torque of the driving device rises to a preset value, the traction chain or the scraper is probably blocked, at the moment, the driving of the traction chain is stopped, and an auxiliary slag discharging measure is adopted until the normal operation condition is recovered.
The positive progress effects of the invention are as follows: the slag falling conveying device provided by the invention has the advantages that the scraper is driven by the traction chain, the falling slag is taken away by the scraper, so that the conveying of the falling slag is realized, meanwhile, the direction change piece is pressed above the traction chain, the direction change of the traction chain is realized, so that the trend of the traction chain can be adapted to the shape of the water tank, and the scraper can be ensured to be in contact with the wall of the water tank. Compare and change to in utilizing the pinch roller, change to the piece and press and establish in the top of drag chain, set up like this and can prevent or avoid falling the sediment and get into between drag chain and the change to improve drag chain's operating stability, the sediment conveyor that falls can carry the sediment that falls steadily. The slag discharging device provided by the invention can realize stable operation and reduce the failure rate by utilizing the slag discharging conveying device. The slag tapping method can ensure that the slag tapping device can stably and reliably operate.
Drawings
FIG. 1 is a schematic structural view of a slag tapping device according to an embodiment of the present invention.
FIG. 2 is a flow chart of a tapping method according to an embodiment of the present invention.
Description of the reference numerals
Drag chain 1
Scraper 2
Direction changing piece 3
Redirecting plate 32
Bulk falling slag detection device 4
Pinch roller 5
Drive wheel 7
Housing 8
Slag discharge port 81
Fallen slag conveying device 10
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
The embodiment provides a slag falling conveying device 10, which is used for a slag discharging device 100, as shown in fig. 1, the slag falling conveying device 10 comprises a traction chain 1, a scraper 2 and a redirection piece 3, wherein the traction chain 1 can move under the driving of a driving device, the scraper 2 is connected to the traction chain 1, so that the scraper 2 can move along with the traction chain 1, the redirection piece 3 comprises a main body plate 31 and a redirection plate 32 arranged at the end part of the main body plate 31, the redirection plate 32 forms an included angle with the main body plate 31, and the redirection piece 3 is arranged above the traction chain 1 in a pressing manner, so that the trend of the traction chain 1 forms an included angle.
In this scheme, drag chain 1 drives scraper blade 2, and scraper blade 2 will fall the sediment and take away to the realization is to falling the transport of sediment. The direction change piece 3 is pressed above the traction chain 1, so that the traction chain 1 is changed in direction, the trend of the traction chain 1 can be adapted to the shape of the water tank 6, and the scraper 2 can be ensured to contact with the wall of the water tank 6. The teaching between the main body plate 31 and the redirection plate 32 may vary depending on the specific shape of the sink 6. Relative movement between the traction chain 1 and the bend 3 can take place, so that the bend 3 is made of a wear-resistant material, such as high manganese steel. Compare and change to in utilizing pinch roller 5, change to the piece 3 and press and establish in the top of drag chain 1, set up like this and can prevent or avoid falling the sediment to get into drag chain 1 and change to between the piece 3 to improve drag chain 1's operating stability, the sediment conveyor 10 that falls can carry the sediment that falls steadily.
In this embodiment, the driving device is a driving wheel 7, the traction chain 1 is wound on the driving wheel 7, and a tail redirection wheel 9 is further provided, and the driving wheel 7 and the tail redirection wheel 9 are located at two ends of the traction chain 1.
In a preferred embodiment, two redirection plates 32 are respectively arranged at two ends of the main body plate 31, and the redirection piece 3 is U-shaped. Under the effect of bend 3, tow chain 1 realizes twice bend, consequently can adapt to concave basin 6, and the scraper blade 2 on the tow chain 1 can laminate with basin 6, guarantees that the sediment that falls in the basin 6 is all taken out.
In a preferred embodiment, the drag chain 1 is annular and encloses an inner space, the dropped slag conveying device 10 further comprises a rotatable pinch roller 5, the pinch roller 5 is at least partially located in the inner space, and the pinch roller 5 abuts against a part of the drag chain 1 below the pinch roller 5, so that the trend of the drag chain 1 is an included angle. The pressure wheel 5 itself can rotate and the friction between it and the traction chain 1 is small. And pinch roller 5 is located the below of upper traction chain 1, and when falling sediment conveyor 10 applied to slag discharging device 100, pinch roller 5 was not in basin 6, consequently can not contact with the sediment that falls, just can not appear blocking, the off-groove scheduling problem that causes because of the sediment that falls in pinch roller 5 department yet.
An arc-shaped plate 33 is arranged between the main body plate 31 and the redirection plate 32, and the arc-shaped plate 33 plays a transition role between the main body plate 31 and the redirection plate 32, so that damage of sharp corners to the traction chain 1 is avoided, and the service life of the redirection part 3 and the traction chain 1 is prolonged.
The present embodiment also provides a tapping device 100 comprising a water tank 6, the water tank 6 having a bottom wall 61 and a side wall 62. In this embodiment, the bottom wall 61 of the water tank 6 extends horizontally, and the side wall 62 forms a slope and meets the bottom wall 61. The water tank 6 is arranged below the slag outlet 20 of the secondary combustion chamber to receive the slag, the secondary combustion chamber water seal plate 30 extending downwards is arranged at the position of the slag outlet 20 of the secondary combustion chamber, and after the water level in the water tank 6 reaches the secondary combustion chamber water seal plate 30, the water seal effect can be realized.
The slag discharging device 100 further comprises the slag conveying device 10 as before, the main body plate 31 of the redirection piece 3 corresponds to the position of the bottom wall 61, the redirection plate 32 corresponds to the position of the side wall 62, so that the scraper 2 is attached to the water tank 6, the redirection piece 3 is fixed relative to the water tank 6, the scraper 2 on the traction chain 1 is attached to the water tank 6, and therefore the scraper 2 can carry out the slag falling in the water tank 6. The bend 3 is located above the traction chain 1, and falling slag is not easy to enter between the bend 3 and the traction chain 1, so that the operation reliability of the traction chain 1 is improved.
In the present embodiment, the bottom wall 61 of the water tank 6 is parallel to the main body plate 31 of the redirecting element 3, and the side wall 62 of the water tank 6 is parallel to one redirecting plate 32 of the redirecting element 3.
The slag tapping device 100 further comprises a large slag falling detection device 4 for detecting whether large slag falling exists in the water tank 6. When the slag discharging device 100 detects large slag drops (for example, slag drops larger than 50 cm), the driving of the traction chain 1 is stopped, and the damage to the traction chain 1 or the scraper 2 caused by the blockage of the large slag drops on the operation of the traction chain 1 is avoided. The bulk falling slag detection device 4 may be a vision sensor, a laser sensor, or the like. The limitation of the large-sized slag drop can be varied according to the actual situation, for example, the minimum value of the large-sized slag drop can be more than 50cm in the case of a large drive power.
The tapping device 100 further comprises a torque sensor (shown in fig. 2) for detecting the traction torque of the drive, which torque sensor may be provided at the drive. When the torque sensor detects that the traction torque of the driving device rises to a preset value, the traction chain 1 or the scraper 2 is probably blocked, at the moment, the driving of the traction chain 1 is stopped, and an auxiliary slag tapping measure is adopted until the normal operation condition is recovered. The size of the preset value can be changed according to actual conditions so as to meet different working requirements.
The slag discharging device 100 further comprises a housing 8, the slag conveying device 10 is arranged in the housing 8, and a slag discharging port 81 is formed in the end of the housing 8 to discharge the falling slag. The falling slag is discharged out of the slag tapping device 100 through the slag discharge port 81, and the falling slag conveyor 10 can be fixed by the housing 8. The slag discharge port 81 may be provided at one end of the housing 8 and positioned higher than the water tank 6, and a discharge port 82 may be further provided at the other end of the housing 8.
As shown in fig. 2, the present embodiment further provides a tapping method, which is applied to the tapping device 100 as before, and the tapping method comprises:
injecting water into the water tank 6 to reach a preset water level;
the driving device drives the drag chain 1 to move, and the scraper 2 takes out the falling slag in the water tank 6.
When the slag discharging device 100 operates by the method, falling slag is not easy to enter between the redirection piece 3 and the traction chain 1, so that the operation reliability of the traction chain 1 is improved, and the slag discharging device 100 can operate stably and reliably by the slag discharging method.
In the case where the slag tapping device 100 has the large slag drop detecting device 4 as above, the slag tapping method includes:
when the large slag falling detection device 4 detects that large slag falls in the water tank 6, the traction chain 1 stops moving.
When detecting the bold and falling the sediment, for avoiding the bold to fall the sediment card and hinder the operation of drag chain 1, then stop drag chain 1 operation to can discharge the sediment that falls through other supplementary slag discharging modes.
In the case of a tapping device 100 with a torque sensor as above, the tapping method comprises:
when the torque sensor detects that the traction torque of the driving device is larger than a preset value, the traction chain 1 stops moving.
When the torque sensor detects that the traction torque of the driving device rises to a preset value, the traction chain 1 or the scraper 2 is probably blocked, at the moment, the driving of the traction chain 1 is stopped, and an auxiliary slag tapping measure is adopted until the normal operation condition is recovered.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (12)
1. A slag-dropping conveying device for a slag-discharging device is characterized in that the slag-dropping conveying device comprises
The traction chain can move under the driving of the driving device;
a scraper connected to the drag chain such that the scraper is movable with the drag chain;
the part of changing to, change to including the main part board and set up in the board of changing to of the tip of main part board, change to the board with the main part board is the contained angle, wherein, change to the laminating ground pressure of piece and establish the top of drag chain, so that the trend of drag chain is the contained angle.
2. The fallen slag conveying device according to claim 1, wherein the main body plate is provided at each of both ends thereof with one of the direction-changing plates, and the direction-changing members are U-shaped.
3. The dropped slag conveyor of claim 1, wherein the drag chain is endless and defines an interior space, the dropped slag conveyor further comprising a rotatable pinch roller at least partially positioned in the interior space, the pinch roller abutting against a portion of the drag chain below the pinch roller to angle the travel of the drag chain.
4. The dropped slag conveyor according to claim 1, wherein an arc-shaped plate is provided between the main body plate and the redirecting plate.
5. A slag tapping device, comprising a water tank, wherein the water tank is provided with a bottom wall and a side wall, and the slag tapping device is characterized by further comprising the slag falling conveying device as claimed in any one of claims 1 to 4, wherein the main body plate of the redirection piece corresponds to the position of the bottom wall, and the redirection plate corresponds to the position of the side wall, so that the scraper is attached to the water tank.
6. The slag tapping device according to claim 5, wherein the slag tapping device further comprises a large slag drop detection device for detecting the presence of large slag drops in the water bath.
7. Tapping device according to claim 5, wherein the tapping device further comprises a torque sensor for detecting the traction torque of the driving means.
8. The slag tapping device as claimed in claim 5, wherein the slag tapping device further comprises a housing, the slag falling conveying device is disposed in the housing, and a slag discharge port is opened at an end of the housing to discharge the falling slag.
9. The tapping device as claimed in claim 5 wherein the length of the redirection plate does not exceed the length of the side wall.
10. A tapping method applied to the tapping device according to any one of claims 5 to 8, comprising:
injecting water into the water tank to reach a preset water level;
the driving device drives the traction chain to move, and the scraper plate takes out the falling slag in the water tank.
11. Tapping method according to claim 10, applied to a tapping device according to claim 6, comprising:
and when the large-block falling slag detection device detects that large-block falling slag exists in the water tank, the traction chain stops moving.
12. Tapping method according to claim 10 or 11, applied to a tapping device according to claim 7, comprising:
and when the torque sensor detects that the traction torque of the driving device is greater than a preset value, the traction chain stops moving.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253714.3A CN112923379B (en) | 2021-03-02 | 2021-03-02 | Slag falling conveying device, slag discharging device and slag discharging method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110253714.3A CN112923379B (en) | 2021-03-02 | 2021-03-02 | Slag falling conveying device, slag discharging device and slag discharging method |
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| CN112923379A true CN112923379A (en) | 2021-06-08 |
| CN112923379B CN112923379B (en) | 2022-11-22 |
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| CN201476032U (en) * | 2009-08-21 | 2010-05-19 | 北京国电龙源环保工程有限公司 | Mechanical slag removal device of pulverized-coal boiler |
| CN107840389A (en) * | 2017-11-24 | 2018-03-27 | 长兴华阁耐物流装备有限公司 | A kind of grid sewage-removing machine easy to remove |
| CN209209676U (en) * | 2018-11-14 | 2019-08-06 | 伟明环保设备有限公司 | A kind of grate furnace lime-ash water seal conveying device |
| CN210320074U (en) * | 2019-07-01 | 2020-04-14 | 海南宝来工贸有限公司 | Rotary kiln burns automatic slag removal device |
| CN212580850U (en) * | 2020-06-09 | 2021-02-23 | 北京润泰环保科技有限公司 | Chain protection system of scraper slag extractor |
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2021
- 2021-03-02 CN CN202110253714.3A patent/CN112923379B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201476032U (en) * | 2009-08-21 | 2010-05-19 | 北京国电龙源环保工程有限公司 | Mechanical slag removal device of pulverized-coal boiler |
| CN107840389A (en) * | 2017-11-24 | 2018-03-27 | 长兴华阁耐物流装备有限公司 | A kind of grid sewage-removing machine easy to remove |
| CN209209676U (en) * | 2018-11-14 | 2019-08-06 | 伟明环保设备有限公司 | A kind of grate furnace lime-ash water seal conveying device |
| CN210320074U (en) * | 2019-07-01 | 2020-04-14 | 海南宝来工贸有限公司 | Rotary kiln burns automatic slag removal device |
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| CN112923379B (en) | 2022-11-22 |
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