CN214468699U - Arrange sediment steam and reduce sediment storehouse - Google Patents
Arrange sediment steam and reduce sediment storehouse Download PDFInfo
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- CN214468699U CN214468699U CN202120274247.8U CN202120274247U CN214468699U CN 214468699 U CN214468699 U CN 214468699U CN 202120274247 U CN202120274247 U CN 202120274247U CN 214468699 U CN214468699 U CN 214468699U
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Abstract
The utility model discloses a slag discharging water vapor slag reducing bin, wherein the upper part of a bin body is provided with a slag inlet, the lower part of the bin body is provided with a slag discharging port, and the bin body is internally used for temporarily storing slag; humidification agitating unit sets up in row cinder notch lower part, be used for the humidification slag, and slag notch exhaust slag is arranged in the even stirring, cooling nozzle sets up the upper portion at the storehouse body, connect in outside cooling tube, cooling water in the cooling tube sprays cooling water to the slag top of storehouse internal portion through cooling nozzle, carry out cooling to the slag that falls into storehouse internal portion, and preliminary humidification slag simultaneously, after dry slag gets into the storehouse body, meet the cooling water that cooling nozzle sprayed, produce steam, be negative pressure state because of boiler inside, inside the boiler is taken out to the steam in storehouse internal portion, the cooling vapor body absorbs heat, can make the temperature of slag reduce, when the slag is discharged from row cinder notch to the below, the temperature is lower relatively, the steam that produces when being humidified greatly reduced.
Description
Technical Field
The utility model relates to a thermal power technical field further relates to a arrange sediment steam and reduce sediment storehouse.
Background
Most furnace bottom slag of modern newly-built large-scale thermal power plants adopts a dry slag removal system, slag is discharged into a slag bin after primary cooling treatment, and a boiler is in relatively closed connection with the slag bin; the furnace bottom slag falls into the first-level steel belt slag cooler through the boiler slag well, is cooled by air in the steel belt slag cooler, and the heated air drives the heat of the bottom slag to enter a boiler furnace, and the cooled bottom slag is crushed by the slag crusher and then is conveyed to a slag bin by the second-level steel belt slag cooler to be stored.
The double-shaft humidifying stirrer is arranged at the bottom of the slag bin, ash slag is added with water and stirred, is loaded into an automobile and is transported away for comprehensive utilization, raised dust is prevented from being generated in the ash slag transportation process, the ash slag needs to be humidified and stirred when being discharged from the slag bin, the temperature of the slag at a discharge port of the slag bin is generally about 100-150 ℃, and due to the fact that the temperature of the ash slag is high, a large amount of water vapor can be generated when the temperature of the external environment is low, the sight of operators is influenced, and accurate control of slag discharge is not facilitated.
For those skilled in the art, how to reduce the water vapor generated during the slag discharging process is a technical problem to be solved at present.
SUMMERY OF THE UTILITY MODEL
The utility model provides a arrange sediment steam and reduce sediment storehouse, cool down in advance to the internal slag in entering storehouse, the steam that produces when reducing the slag discharge, concrete scheme is as follows:
a slag discharging water vapor reduction slag bin comprises:
the bin body is provided with a slag inlet for inputting slag at the upper part and a slag discharge port for discharging the slag at the lower part;
the humidifying and stirring device is arranged at the lower part of the slag discharging port and is used for humidifying and uniformly stirring the slag discharged from the slag discharging port;
and the cooling nozzle is arranged at the upper part of the bin body and connected to an external cooling pipeline, and cooling water in the cooling pipeline sprays cooling water to the upper part of the slag in the bin body through the cooling nozzle.
Optionally, the cooling pipeline is connected with a wastewater bin, and the desulfurization wastewater is conveyed inside the cooling pipeline.
Optionally, the cooling nozzle is mounted on an extension rod, and the top end of the extension rod is vertically fixed on the upper surface of the bin body;
the length of the extension rod is 0.5-1.5 m.
Optionally, the cooling nozzle is in a conical spray shape, and the cone angle ranges from 45 degrees to 60 degrees.
Optionally, the cooling nozzle has a cylindrical main body, a spiral elbow with a spiral taper is arranged at the end, and the cooling water impacts on the spiral elbow to form a conical water flow.
Optionally, at least two cooling nozzles are installed in the bin body, and the cooling nozzles are arranged on two sides of the slag inlet.
Optionally, the cooling device further comprises an electromagnetic valve arranged on the cooling pipeline, and the electromagnetic valve is used for controlling the cooling pipeline to be switched on and off, so that the cooling nozzle intermittently sprays cooling water.
Optionally, the electromagnetic valve is controlled to enable the cooling nozzle to spray cooling water for 5-20 s at intervals of 2-5 min.
Optionally, the cooling water spraying interval is reduced by 0.5min every time the unit power generation load of the boiler is increased by 50 MW.
Optionally, a material level sensor is arranged in the bin body, and when the material level in the bin body is lower than a set value, the electromagnetic valve is closed to stop spraying.
The utility model provides a slag discharging water vapor slag reducing bin, which comprises a bin body, a humidifying and stirring device, a cooling nozzle and other structures, wherein the upper part of the bin body is provided with a slag inlet for inputting slag, the lower part of the bin body is provided with a slag discharging port for discharging slag, and the interior of the bin body is used for temporarily storing the slag; humidification agitating unit sets up in row cinder notch lower part, be used for the humidification slag, and slag notch exhaust slag is arranged in the even stirring, cooling nozzle sets up the upper portion at the storehouse body, connect in outside cooling tube, cooling water in the cooling tube sprays cooling water to the slag top of storehouse internal portion through cooling nozzle, carry out cooling to the slag that falls into storehouse internal portion, and preliminary humidification slag simultaneously, after dry slag gets into the storehouse body, meet the cooling water that cooling nozzle sprayed, produce steam, be negative pressure state because of boiler inside, inside the boiler is taken out to the steam in storehouse internal portion, the cooling vapor body absorbs heat, can make the temperature of slag reduce, when the slag is discharged from row cinder notch to the below, the temperature is lower relatively, the steam that produces when being humidified greatly reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of a front view structure of a slag discharging water vapor reduction bin provided by the present invention;
fig. 2 is the utility model provides a overlook the structure sketch map that sediment steam reduces sediment storehouse.
The figure includes:
the device comprises a bin body 1, a slag inlet 11, a slag discharge port 12, a humidifying and stirring device 2, a cooling nozzle 3, a cooling pipeline 31, an extension rod 32 and an electromagnetic valve 33.
Detailed Description
The core of the utility model is to provide a slag discharging water vapor reduces the slag bin, cools down the slag entering the bin body in advance, and the water vapor produced when reducing the slag discharge.
In order to make those skilled in the art better understand the technical solution of the present invention, the following will describe the slag discharging steam reduction bin in detail with reference to the accompanying drawings and the specific embodiments.
As shown in fig. 1, is a schematic view of the front view structure of the slag discharging water vapor reduction bin provided by the present invention; FIG. 2 is a schematic view of the top view structure of the slag discharging steam reduction bin provided by the present invention; the slag discharging water vapor slag reducing bin provided by the utility model comprises a bin body 1, a humidifying and stirring device 2, a cooling nozzle 3 and other structures, wherein the bin body 1 is used for temporarily storing slag, the upper part of the bin body 1 is provided with a slag inlet 11 for inputting the slag, and the lower part of the bin body is provided with a slag discharging port 12 for discharging the slag; as shown in fig. 1, a in the figure shows a conveyor for conveying slag into the bin body 1, wherein the conveyor drives the slag to enter the bin body 1 from a slag inlet 11; the connecting channel between the bin body 1 and the boiler is kept relatively closed, slag discharged from the boiler is conveyed into the bin body 1 through a series of operations and transfers, and is discharged into equipment such as a truck from a slag discharge port 12 arranged below the bin body 1 for further transfer and transportation.
The humidifying and stirring device 2 is arranged at the lower part of the slag discharging port 12 and is used for humidifying and uniformly stirring slag discharged from the slag discharging port 12, when slag is discharged, a discharging door is opened, hot slag is discharged into the humidifying and stirring device 2, cooling water is sprayed to the humidifying and stirring device 2 and is uniformly mixed with the hot slag, and the humidifying is mainly used for preventing dust in the slag discharging process and the transportation process.
The cooling nozzle 3 is arranged on the upper part of the bin body 1, the cooling nozzle 3 extends into the bin body 1, the cooling nozzle 3 is connected with an external cooling pipeline 31, cooling water in the cooling pipeline 31 sprays cooling water to the upper part of slag in the bin body 1 through the cooling nozzle 3, the cooling water sprayed by the cooling nozzle 3 is contacted with the slag close to the upper part in the bin body 1, namely, the slag input from the slag inlet 11 can be contacted with the cooling water firstly, the cooling water sprayed by the cooling nozzle 3 is contacted with the upper layer slag which just enters the bin body 1 to generate water vapor, and the cooling water is vaporized to absorb heat, so that the upper layer slag is cooled; because the bin body 1 and the boiler are kept relatively closed and the interior of the boiler is in a negative pressure state, water vapor generated in the bin body 1 is discharged from the slag inlet 11 and finally enters the boiler.
Because the upper slag in the storehouse body 1 is cooled down through the cooling nozzle 3 that the top set up, the slag is discharged from row cinder notch 12 gradually, and the slag that is located the upper strata originally to the lower floor, temperature this moment have been lower, and the steam that produces when contacting with the cooling water of 2 inputs of humidification agitating unit has avoided the influence of steam to the operating personnel field of vision again.
The utility model discloses utilize cooling nozzle 3 to carry out preliminary cooling to the slag, reduce the slag temperature to the steam volume that produces when finally reducing the slag and discharging.
On the basis of the above scheme, the utility model discloses a waste water storehouse is connected to cooling tube 31, the interior desulfurization waste water that stores of waste water storehouse, and the inside desulfurization waste water that carries of cooling tube 31, the cooling water that also sprays from cooling nozzle 3 is desulfurization waste water, utilizes the desulfurization waste water that originally needs the independent processing to cool off, has reduced the process of waste water independent processing, realizes waste utilization. After the desulfurization wastewater is evaporated, water vapor enters a hearth under the action of negative pressure of a boiler, and a solid-containing part is mixed into slag.
Preferably, the cooling nozzle 3 of the utility model is installed on the extension rod 32, the top end of the extension rod 32 is vertically fixed on the upper surface inside the bin body 1, and the length of the extension rod 32 is 0.5-1.5 m, so that the cooling nozzle 3 has a distance of 0.5-1.5 m from the upper surface inside the bin body 1; because chloride ion concentration is high in the desulfurization waste water, can cause the corruption with the inner wall contact of the storehouse body 1, the cooling water that the steam that produces when desulfurization waste water evaporates can reverse impact cooling nozzle 3 spray, if cooling nozzle 3 is too near with the upper surface distance of storehouse body 1 inside, can make desulfurization waste water last with upper surface contact, reduce the life of the storehouse body 1.
Specifically, the utility model provides a cooling nozzle 3's main part is the cylindric, sets up the spiral elbow of spiral convergent at the tip of cylindric, and the cooling water has the inside circulation of cylindric, and the cooling water strikes after the play and becomes overhead formation toper rivers at the spiral, and the nozzle that adopts this kind of structure can avoid effectively stopping up because of the abominable operational environment in desulfurization waste water suspension height and storehouse internal portion. The nozzle is made of 316L stainless steel, so that the high concentration of chloride ions in the desulfurization wastewater is effectively prevented from corroding the nozzle.
At least two cooling nozzles 3 are arranged in the bin body 1, the cooling nozzles 3 are arranged on two sides of the slag inlet 11, and as shown in a combined figure 2, the two cooling nozzles 3 are respectively positioned on the upper surface of the bin body 1 near the middle and on two sides of the slag inlet 11 respectively, so that more uniform spraying is realized.
On the basis of any technical scheme and the mutual combination thereof, the utility model also comprises an electromagnetic valve 33 arranged on the cooling pipeline 31, wherein the electromagnetic valve 33 is used for controlling the on-off of the cooling pipeline 31 so as to lead the cooling nozzle 3 to intermittently spray cooling water; the electromagnetic valve 33 is automatically controlled and adjusted by a DCS (Distributed Control System), and when the electromagnetic valve 33 is opened, the cooling nozzle 3 sprays water, and when the electromagnetic valve 33 is closed, the water spraying is stopped.
The DCS system controls the state of the electromagnetic valve 33, so that the cooling nozzles 3 spray cooling water for 5-20 s at intervals of 2-5 min, and the cooling nozzles 3 work intermittently to prevent hardening caused by overhigh humidity due to continuous spraying.
Preferably, when the unit power generation load of the boiler is increased by 50MW, the spraying interval of the cooling water is reduced by 0.5 min; if the generating load of the boiler unit is larger, the amount of the slag generated in unit time is larger, and according to the linear proportion, the spraying interval is shorter if the amount of the slag is larger, so that the uniformity and consistency of the slag humidity are better ensured.
Furthermore, a material level sensor is arranged in the bin body 1, when the material level in the bin body 1 is lower than a set value, the electromagnetic valve 33 is closed to stop spraying, and if the grain level of the slag is lower than the set value, the slag continues to be sprayed, so that the desulfurization waste water is sprayed onto the conical inclined surface at the lower part of the bin body 1 to cause corrosion; the slag amount is less than the set amount of spraying and is not sprayed any more, thereby ensuring that the bin body is not corroded.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. The utility model provides a sediment steam reduces sediment storehouse which characterized in that includes:
the bin body (1), the upper portion of the said bin body (1) sets up the slag inlet (11) used for inputting the slag, the inferior part sets up the slag discharge outlet (12) used for discharging the slag;
the humidifying and stirring device (2) is arranged at the lower part of the slag discharging port (12) and is used for humidifying and uniformly stirring slag discharged from the slag discharging port (12);
and the cooling nozzle (3) is arranged at the upper part of the bin body (1) and connected with an external cooling pipeline (31), and cooling water in the cooling pipeline (31) is sprayed to the upper part of the slag in the bin body (1) through the cooling nozzle (3).
2. The slag discharging water vapor reduction bin according to claim 1, wherein the cooling pipeline (31) is connected with a waste water bin, and desulfurization waste water is conveyed inside the cooling pipeline (31).
3. The slag discharging steam reduction slag bin according to claim 2, wherein the cooling nozzle (3) is mounted on an extension rod (32), and the top end of the extension rod (32) is vertically fixed on the upper surface inside the bin body (1);
the length of the extension rod (32) is 0.5-1.5 m.
4. The slag discharging water vapor reduction slag bin according to claim 3, wherein the cooling nozzles (3) spray in a conical shape, and the cone angle ranges from 45 degrees to 60 degrees.
5. The slag discharging water vapor reduction bin according to claim 4, wherein the cooling nozzle (3) is cylindrical in main body, a spiral elbow with a spiral gradually reducing end is arranged at the end, and cooling water impacts on the spiral elbow to form a conical water flow.
6. The slag discharging water vapor reduction slag bin according to claim 4, wherein at least two cooling nozzles (3) are installed in the bin body (1), and the cooling nozzles (3) are arranged on two sides of the slag inlet (11).
7. The slag discharging water vapor reduction slag bin according to any one of claims 1 to 6, further comprising an electromagnetic valve (33) arranged on the cooling pipeline (31), wherein the electromagnetic valve (33) is used for controlling the cooling pipeline (31) to be switched on and off, so that the cooling nozzle (3) intermittently sprays cooling water.
8. The slag discharging water vapor reduction bin according to claim 7, wherein the cooling nozzles (3) are sprayed with cooling water for 5-20 s at intervals of 2-5 min by controlling the electromagnetic valve (33).
9. The slagging steam-reducing slag bin according to claim 8, wherein the cooling water spraying interval is reduced by 0.5min for every 50MW increase in the unit power generation load of the boiler.
10. The slag discharging water vapor reduction slag bin according to claim 7, wherein a material level sensor is arranged in the bin body (1), and when the material level in the bin body (1) is lower than a set value, the electromagnetic valve (33) is closed to stop spraying.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120274247.8U CN214468699U (en) | 2021-01-29 | 2021-01-29 | Arrange sediment steam and reduce sediment storehouse |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120274247.8U CN214468699U (en) | 2021-01-29 | 2021-01-29 | Arrange sediment steam and reduce sediment storehouse |
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| CN214468699U true CN214468699U (en) | 2021-10-22 |
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| CN202120274247.8U Active CN214468699U (en) | 2021-01-29 | 2021-01-29 | Arrange sediment steam and reduce sediment storehouse |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476731A (en) * | 2021-12-24 | 2022-05-13 | 武汉天空蓝环保科技有限公司 | Dry slag bin cooling dust fall waste gas emission reduction device and dry slag processing system |
| CN114659118A (en) * | 2022-03-14 | 2022-06-24 | 中国恩菲工程技术有限公司 | Slag discharge device, incineration equipment and slag discharge method |
-
2021
- 2021-01-29 CN CN202120274247.8U patent/CN214468699U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114476731A (en) * | 2021-12-24 | 2022-05-13 | 武汉天空蓝环保科技有限公司 | Dry slag bin cooling dust fall waste gas emission reduction device and dry slag processing system |
| CN114659118A (en) * | 2022-03-14 | 2022-06-24 | 中国恩菲工程技术有限公司 | Slag discharge device, incineration equipment and slag discharge method |
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