CN106838946B - Splash-proof device and slag dragging machine - Google Patents
Splash-proof device and slag dragging machine Download PDFInfo
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- CN106838946B CN106838946B CN201710165858.7A CN201710165858A CN106838946B CN 106838946 B CN106838946 B CN 106838946B CN 201710165858 A CN201710165858 A CN 201710165858A CN 106838946 B CN106838946 B CN 106838946B
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- plate
- container
- cooling water
- slag
- splash guard
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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)
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Abstract
The invention relates to the field of liquid fluid control devices, and discloses a splash-proof device and a slag conveyor, wherein the slag conveyor comprises a balance plate (1) which is used for being connected to the inner wall of a container containing liquid fluid, a diversion hole (2) is formed in the balance plate (1), and a diversion plate (3) which extends above the diversion hole (2) is arranged on the upper side of the balance plate (1) so as to guide the liquid fluid overflowing from the diversion hole (2) to flow towards the center direction of the container. The splash guard provided by the invention can prevent or reduce the liquid fluid contained in a container such as a cooling water tank of a slag conveyor from overflowing and splashing.
Description
Technical Field
The present invention relates to liquid fluid control devices, and in particular, to a splash guard. On the basis, the invention also relates to a slag dragging machine with the splash-proof device.
Background
The solid slag-discharging coal-fired boiler generally adopts a wet slag-removing process, a slag-dragging machine is arranged at the bottom of a boiler hearth, and a certain cooling water level is kept in a water tank of the slag-dragging machine to seal a furnace body and cool slag. The water sealing plate at the bottom of the boiler is inserted into the water tank, so that cold air at the bottom of the boiler is prevented from entering the hearth, and the combustion space is kept isolated from the external space, so that flame in the boiler is stably combusted. And after the slag falls into the slag scooping machine, the cooling water can quickly cool the slag, and the large slag blocks are broken under the impact of heat, so that the subsequent transportation and utilization are convenient.
At present, a cooling water tank of the slag extractor is arranged into an open structure, namely, an open space is formed between the inner edges of two sides of the slag extractor and a water sealing plate or a slag well inserted into cooling water, so that water body fluctuation, overflow and even outward splashing are caused after a large slag block falls into the cooling water. This leads to a number of problems: on one hand, the fluctuation of the water body caused by the falling of the slag blocks easily causes that the water sealing plate and the water body cannot be well sealed, so that unstable combustion is caused; on the other hand, the water body often overflows and splashes outside the slag scooping machine after being impacted by the slag blocks, and the cooling water has higher temperature, so that the safety of workers and the surrounding environment are threatened. In addition, splashing of cooling water to the waterwall tube rows creates differential temperature stresses, which can also lead to stress cracking and leakage of the waterwall tubes.
Such problems also occur in other containers containing liquid fluids that are subject to relatively large fluctuations. Therefore, it is necessary to provide a device for preventing the liquid fluid from overflowing and splashing outwards, so as to solve the technical problems in the prior art.
Disclosure of Invention
The invention aims to solve the technical problem of providing a splash guard which can prevent or reduce liquid fluid contained in a container (such as a cooling water tank of a slag conveyor) from overflowing and splashing outwards.
In order to solve the above-mentioned technical problems, the present invention provides a splash guard comprising a balance plate for connection to an inner wall of a container containing a liquid fluid, a baffle hole being formed on the balance plate, and a baffle plate extending above the baffle hole being provided on an upper side of the balance plate so as to be able to guide the liquid fluid overflowing from the baffle hole to flow toward a center direction of the container.
Preferably, the balancing plate extends in a horizontal direction, and is provided with a support plate extending in a direction perpendicular to an upper side plate surface of the balancing plate and connected to both ends of the deflector.
Preferably, the baffle extends along an arcuate curve.
Preferably, the balance plate and the deflector are stainless steel plates.
Preferably, the balancing plate has a longitudinal end which in the mounted state extends parallel to the inner wall of the container and a transverse end which is angled to the longitudinal end, wherein at least one of the transverse ends is provided with a connecting plate.
Preferably, one of the longitudinal ends of the balancing plate is provided with a first fixing plate for being snugly connected to the inner wall of the container and a second fixing plate for being snugly supported on the upper edge of the side wall of the container.
Preferably, the extending direction of the diversion hole and the extending direction of the longitudinal end part of the balance plate form an inclined included angle.
In addition, the invention also provides a slag extractor, which is provided with the splash-proof device, wherein the container is a cooling water tank of the slag extractor, and the liquid fluid is cooling water for cooling slag and sealing a furnace body.
Preferably, the lower side plate surface of the balance plate is higher than the cooling water level in the cooling water tank.
Preferably, both sides of the cooling water tank along the longitudinal direction of the slag extractor are provided with the anti-splashing devices, and the diversion holes in the anti-splashing devices on the two sides have different inclination directions relative to the longitudinal direction of the slag extractor.
According to the technical scheme, when liquid fluid (such as cooling water in the water tank of the slag conveyor) in the container bears a certain external force action to have the tendency of overflowing and splashing outwards, the balance plate connected to the inner wall of the container can lift up to the water level to have an obstructing effect on the inner side of the container, so that the rising trend of the liquid fluid is slowed down to reduce splashing. After the liquid fluid rises to the upper side of the balance plate through the guide holes on the balance plate, the guide plates above the guide holes can guide the liquid fluid to flow towards the center direction of the container, so that the liquid fluid rising outside the free ends of the balance plate is driven to flow towards the center direction of the container together, and the outward overflow is avoided.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate the invention and together with the description serve to explain, without limitation, the invention. In the drawings:
FIG. 1 is a schematic view showing an installation structure of a splash guard in a slag extractor according to a preferred embodiment of the present invention;
FIG. 2 is an enlarged view of part I of FIG. 1;
fig. 3a and 3b are a front and a top schematic view, respectively, of a splash guard according to a preferred embodiment of the present invention;
fig. 4 is a schematic diagram for showing the flow direction of the liquid fluid.
Description of the reference numerals
1. Balance plate 2 diversion hole
3. Baffle 4 backup pad
5. First fixing plate of connecting plate 6
7. Cooling water tank of second fixing plate 8
L cooling water level 9 water seal board
Detailed Description
The following describes specific embodiments of the present invention in detail with reference to the drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the invention, are not intended to limit the invention.
Referring to fig. 1 to 4, one aspect of the present invention provides a splash guard, and another aspect provides a slag conveyor having the splash guard. It will be appreciated that although in the following description the construction and principle will be mainly described by way of example of a splash guard applied in a slag conveyor, the splash guard provided by the invention can also be applied in other applications for preventing overflow and splashing of a liquid fluid of relatively high fluctuation contained in a container.
First, referring to fig. 1, in the slag conveyor equipped with the splash guard according to the present invention, a cooling water tank 8 and a water seal plate 9 are provided, as in the conventional art. Wherein, cooling water for cooling the slag that drops is contained in cooling water tank 8, and cooling water level L surpasses the bottom of water shrouding 9 to isolate the combustion space of boiler, keep stable burning. When the dropped slag bear large, the cooling water is easy to splash outwards through the open space between the water seal plate 9 and the cooling water tank 8, which threatens the safety of workers and the surrounding environment.
For this purpose, the cooling water tank 8 is provided with the splash guard provided by the present invention. Specifically, as shown in connection with fig. 2 to 4, the splashproof includes a balance plate 1, and the balance plate 1 is attached to an inner wall of a cooling water tank 8 to serve as a supporting base for a deflector 3 and the like described later. The balance plate 1 is formed with a deflector hole 2, and a deflector 3 extending above the deflector hole 2 is provided at an upper side so as to be able to guide the cooling water overflowing from the deflector hole 2 to flow toward the center of the cooling water tank 8.
The diversion holes 2, 3 described herein may be formed in various suitable structures, for example, the diversion trench 2 may be a bar-shaped groove formed on the balance board 1, and accordingly, the diversion trench 3 may extend from the upper side plate of the balance board 1 toward a direction away from the connection end of the balance board 1 and the cooling water tank 8 (or other container) along an inclined straight line or arc-shaped curve above the diversion trench 2. In the present invention, the baffle 3 extends over the baffle hole 2, which can be understood as: in the top view shown in fig. 3b, the deflector 3 shields the deflector aperture 2. In other words, the guide plate 3 covers the guide hole 2 in an orthographic projection on the upper plate surface of the balance plate 1.
Therefore, when a large slag block (or a large amount of slag) falls into the cooling water tank 8, the cooling water has a tendency to overflow and splash through the open space outside the water sealing plate 9, and the balance plate 1 connected to the inner wall of the cooling water tank 8 can raise the water level to a blocking effect, thereby slowing down the rising tendency of the cooling water to avoid overflow and splash. Part of the cooling water can rise to the upper side of the balance plate 1 through the diversion trench 2 formed on the balance plate 1, but the part of the cooling water flows towards the center direction of the cooling water tank 8 under the guidance of the diversion plate 3, so that the cooling water rising from the space between the water seal plate 9 and the balance plate 1 is driven to flow in the same direction, and the outward overflow is avoided. It can be seen that the anti-splashing device mainly utilizes the blocking function of the balance plate 1 and the diversion function of the diversion plate 3 to realize the anti-splashing and anti-splashing purposes, and the diversion hole 2 is originally arranged on the balance plate 1 and the diversion plate 3 is arranged above the balance plate 1, so that the liquid fluid in the container is effectively prevented from overflowing and splashing outwards. When the device is applied to a slag conveyor, fluctuation and fluctuation of cooling water can be relieved, so that the sealing performance of a hearth is improved; through reducing the coolant liquid to splash, improved operational environment and guaranteed staff's safety, and can reduce the damage to the water-cooled wall.
It will be appreciated from the above analysis that the term "central direction of the container" as used herein does not strictly refer to a direction toward the geometric center of the container, but includes a direction broadly away from the inner wall of the container. For example, when the container has a circular receiving space, the baffle 3 may be provided to guide the liquid fluid inwardly in a chordwise direction having an angle with the radial direction, not limited to a form of radially inwardly flowing. The meaning of this technical feature will be more clearly understood in connection with the following preferred embodiments.
Referring to fig. 3a and 3b, in the splash guard of a preferred embodiment of the present invention, the balance plate 1 extends in a horizontal direction (in a state of being connected to the inner wall of the container), and a support plate 4 extending along a side of the upper side of the balance plate 1 is provided, and an upper end of the support plate 4 is connected to an end of the baffle 3, thereby forming a baffle channel extending from the baffle hole 2 and along the baffle 3. Through the connection of backup pad 4, can avoid guide plate 3 to warp under the liquid stream impact that rises through water conservancy diversion hole 2, guarantee longer life.
The structure of the flow guide channel depends on the shape of the flow guide hole 2 and the upper edge of the support plate 4. For example, as described above, the diversion holes 2 may be formed as a bar-shaped groove as shown in the figure, and the supporting plate 4 may be a sector plate, and the arc-shaped edge of the sector plate is connected to the diversion plate 3, that is, the diversion plate 3 extends along an arc-shaped curve, so that the flow direction of the guided liquid flow is gradually changed, and splashing caused by intense impact is avoided.
The balancing plates 1 are generally not of sufficient extension due to raw material limitations and the like, for which purpose it is necessary to connect a plurality of balancing plates 1 to each other to limit splashing of the liquid fluid over the extension of the container. In particular, with reference to fig. 3b and 4, the balancing plate 1 may have a longitudinal end 1a extending in parallel with the inner wall of the container in the mounted state and a transverse end 1b at an angle (e.g. with an angle of 90 °) to this longitudinal end 1a, and at least one of said transverse ends 1b is provided with a connection plate 5 for connection with other balancing plates 1. It will be appreciated that the parallel extending relationship of the "longitudinal end 1a" and the inner wall of the container herein is such that the longitudinal end 1a is not limited to the illustrated straight line configuration, but may take a variety of forms depending on the shape of the inner wall of the container. For example, when the container has a circular receiving space, the longitudinal end 1a of the balance plate 1 should have an arc shape substantially coaxial with the circular receiving space, and the lateral end 1b may extend in a radial direction.
Further, any suitable form of connection may be employed for connecting the balance plate 1 to the inner wall of the container. In the illustrated preferred embodiment, as shown in fig. 2, the anti-splash device comprises a first fixing plate 6 and a second fixing plate 7, wherein the first fixing plate 6 is in fit connection (such as by bolts) on the inner wall of the container, and the second fixing plate 7 is in fit support on the upper edge of the side wall of the container, so that the anti-splash device can be prevented from shaking under the impact of liquid flow, and the flow guiding effect can be stably provided.
If the liquid fluid in the circumferential direction of the container is guided in the central direction, the liquid fluid may be accumulated in the central portion and splashed upwards, which is not beneficial to solving the technical problem to be solved by the invention. For this purpose, in a preferred embodiment, the direction of extension of the deflector holes 2 is set at an inclined angle α (e.g. 45 °) to the direction of extension of the longitudinal ends 1a of the balancing plate 1, so that the liquid fluid can be guided by the respective deflector plates 3 not only with a flow velocity towards the centre of the container, but also with a velocity in the direction of the inner wall of the container, facilitating a circulating flow within the container, to consume energy during this circulating flow which may lead to splashing and flooding. Fig. 4 is a schematic diagram showing the flow direction of the liquid fluid. Wherein, when the slag falls, the cooling water flows into the lower side of the balance plate 1 from the position of the water seal plate 9 and rises to the upper side of the balance plate 1 through the diversion holes 2; the cooling water flows obliquely toward the water sealing plate 9 side under the guide of the deflector plate 3 corresponding to the obliquely arranged deflector hole 2, so as to flow integrally in the longitudinal direction of the slag conveyor. If the diversion holes 2 are provided with different inclination directions at the two sides of the slag conveyor, the cooling water can circulate in the cooling water tank 8.
In a liquid fluid such as cooling water, corrosive substances such as sulfates and the like contained in slag are generally contained. For this reason, the balance plate 1, the baffle 3, and the like of the present invention are preferably stainless steel plates. In other suitable cases, the sheet material may be selected from a sheet material of a different material such as a carbon steel sheet or a glass steel sheet. Alternatively, the corrosion resistance can be improved by means of surface treatment.
In addition to the choice of material, in applications such as slag dragveyer, the lower side plate surface of the balance plate 1 may be set higher than the cooling water level L of the cooling water tank 8. Thereby, too fast corrosion caused by long-term immersion in cooling water can be avoided. In addition, the cooling water rises for a short time to wash the splash-proof device, and part of heat is transferred to the splash-proof device, so that the cooling water can be exposed in the air to dissipate heat after the water level is recovered, the surface moisture is quickly evaporated, the adhesion of substances such as ash is reduced, and the ash accumulation of the diversion holes 2 is avoided.
The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the scope of the technical concept of the present invention, and all the simple modifications belong to the protection scope of the present invention.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations of the invention are not described in detail in order to avoid unnecessary repetition.
Moreover, any combination of the various embodiments of the invention can be made without departing from the spirit of the invention, which should also be considered as disclosed herein.
Claims (9)
1. A splash guard, characterized in that the splash guard comprises a balance plate (1) for being connected to the inner wall of a container containing liquid fluid, a diversion hole (2) is formed on the balance plate (1), and a diversion plate (3) extending above the diversion hole (2) is arranged on the upper side of the balance plate (1) so as to be capable of guiding the liquid fluid overflowed from the diversion hole (2) to flow towards the center direction of the container;
the balance plate (1) extends along the horizontal direction, the guide plate (3) extends from the upper side plate surface of the balance plate (1) along an inclined straight line or an arc curve above the guide plate (2) in a direction away from the connecting end of the balance plate (1) and the container, and the guide plate (3) covers the guide plate (2) in the orthographic projection of the upper side plate surface of the balance plate (1);
the container is a cooling water tank (8) of the slag conveyor.
2. Splash guard according to claim 1, characterized in that the balancing plate (1) is provided with support plates (4) extending along a plane perpendicular to the upper side plate of the balancing plate (1) and connected to both ends of the deflector (3).
3. Splash guard according to claim 1, characterized in that the balancing plate (1) and the deflector (3) are stainless steel plates.
4. A splash guard according to any one of claims 1 to 3, characterised in that the balancing plate (1) has a longitudinal end (1 a) which in the mounted state extends parallel to the inner wall of the container and a transverse end (1 b) which is angled to the longitudinal end (1 a), wherein at least one of the transverse ends (1 b) is provided with a connection plate (5).
5. Splash guard according to claim 4, characterized in that one of the longitudinal ends (1 a) of the balancing plate (1) is provided with a first fixing plate (6) for being snugly connected to the inner wall of the container and a second fixing plate (7) for being snugly supported to the upper edge of the side wall of the container.
6. Splash guard according to claim 4, characterized in that the direction of extension of the deflector aperture (2) has an oblique angle (α) to the direction of extension of the longitudinal end (1 a) of the balancing plate (1).
7. A slag extractor, characterized in that it has a splash guard according to any one of claims 1 to 6, wherein the liquid fluid is cooling water for slag cooling and furnace sealing.
8. Slag conveyor according to claim 7, characterized in that the lower side plate of the balancing plate (1) is higher than the cooling water level (L) in the cooling water tank (8).
9. Slag conveyor according to claim 7, characterized in that the cooling water trough (8) is provided with the anti-splash device on both sides in the longitudinal direction of the slag conveyor, and that the deflector holes (2) in the anti-splash devices on both sides have different inclination directions with respect to the longitudinal direction of the slag conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165858.7A CN106838946B (en) | 2017-03-20 | 2017-03-20 | Splash-proof device and slag dragging machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710165858.7A CN106838946B (en) | 2017-03-20 | 2017-03-20 | Splash-proof device and slag dragging machine |
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| Publication Number | Publication Date |
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| CN106838946A CN106838946A (en) | 2017-06-13 |
| CN106838946B true CN106838946B (en) | 2023-10-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710165858.7A Active CN106838946B (en) | 2017-03-20 | 2017-03-20 | Splash-proof device and slag dragging machine |
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| CN (1) | CN106838946B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108088274A (en) * | 2017-12-15 | 2018-05-29 | 柳州市金升汽车配件有限公司 | A kind of automatic submerged slag conveyer |
| CN110054230B (en) * | 2019-04-17 | 2021-05-25 | 重庆市机电设计研究院 | Device for separating slag and liquid |
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| CN103654161A (en) * | 2013-11-30 | 2014-03-26 | 无锡大阿福信息科技有限公司 | Water glass convenient for making and drinking beverages |
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| CN105429367A (en) * | 2015-12-20 | 2016-03-23 | 重庆赛力盟电机有限责任公司 | Leak-proof apparatus for water cooler |
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| CN205640950U (en) * | 2016-05-23 | 2016-10-12 | 湖北金奥特节能环保科技有限公司 | Large -sized boiler dragveyer water seal energy absorber |
| CN206582872U (en) * | 2017-03-20 | 2017-10-24 | 中国神华能源股份有限公司 | Anti-splash device and dragveyer |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060249521A1 (en) * | 2004-04-15 | 2006-11-09 | Dark Richard C G | Spill-resistant container |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000346337A (en) * | 1999-03-29 | 2000-12-15 | Sumitomo Heavy Ind Ltd | Water sealing structure and water scatter-preventing structure of slag discharge duct in rotary kiln system |
| CN201226621Y (en) * | 2008-06-18 | 2009-04-22 | 河南天海电器有限公司 | Anti-water-spraying electrical equipment box cover |
| CN103654161A (en) * | 2013-11-30 | 2014-03-26 | 无锡大阿福信息科技有限公司 | Water glass convenient for making and drinking beverages |
| CN204703288U (en) * | 2015-05-22 | 2015-10-14 | 福州三鑫隆铸业有限公司 | A kind of coverage well lid |
| CN205199188U (en) * | 2015-10-28 | 2016-05-04 | 成都众恒智合信息技术有限公司 | Offset formula water curtain filter module with level sensor |
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| CN106838946A (en) | 2017-06-13 |
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