CN214249662U - Arrange sediment device and economizer ash conveying system - Google Patents

Abstract

The utility model provides a sediment device and economizer ash conveying system relates to coal-fired power plant ash and carries technical field, for solving because of the burnt piece piles up, blocks up the unable problem design of carrying of lime-ash that leads to in buffering ash bucket. The slag discharging device comprises an on-off valve, a slag crusher, a slag removing bin and a filter residue net, wherein the on-off valve is arranged at the outlet end of a first ash hopper; the slag crusher is arranged below the on-off valve; the slag removing bin comprises an upper inlet, a bin body and a lower outlet which are communicated from top to bottom, the upper inlet is connected with the outlet end of the slag crusher, the lower outlet is connected with the inlet end of the second ash bucket, a slag taking port is formed in the side surface of the bin body, and the slag taking port is communicated with the upper inlet and the lower outlet; the filter residue net is fixedly arranged at the outlet at the lower part. The ash conveying system of the economizer comprises the slag discharging device. The utility model discloses the problem of the unable transport of lime-ash that leads to because of the coke block is piled up, is blockked up has been improved.

Description

Arrange sediment device and economizer ash conveying system

Technical Field

The utility model relates to a coal fired power plant ash carries technical field, particularly, relates to a sediment device and economizer ash conveying system.

Background

Generally, the ash conveying system of the coal economizer comprises a plurality of first ash buckets, the outlets of every two first ash buckets are connected with a second ash bucket, each first ash bucket is connected with the second ash bucket through a pipeline, the second ash bucket is used as a buffering ash bucket, a multi-stage pump is installed at the outlet of the second ash bucket, and the multi-stage pumps at the outlets of the second ash buckets are connected in series to convey ash to an ash silo.

However, in the use process of the economizer ash conveying system, due to coking of the boiler, larger coke blocks cannot enter the pipeline, and after smaller coke blocks enter the pipeline, the coke blocks in the second ash hopper are accumulated and blocked due to overlarge particle size, so that ash and slag cannot be conveyed, and the economizer ash conveying system cannot operate.

SUMMERY OF THE UTILITY MODEL

A first object of the utility model is to provide a arrange sediment device to solve the technical problem that the unable transport of lime-ash that current economizer ash conveying system leads to because of the coke breeze is piled up, is stopped up in buffering ash bucket.

The utility model provides a slag discharging device, which is arranged between a first ash bucket and a second ash bucket of an ash conveying system of an economizer, wherein the second ash bucket is a buffering ash bucket, the slag discharging device comprises an on-off valve, a slag crusher, a slag removing bin and a filter screen, and the on-off valve is arranged at the outlet end of the first ash bucket; the slag crusher is arranged below the on-off valve and is configured to crush ash falling through the on-off valve; the slag removing bin comprises an upper inlet, a bin body and a lower outlet which are communicated from top to bottom, the upper inlet is connected with the outlet end of the slag crusher, the lower outlet is connected with the inlet end of the second ash bucket, a slag taking port is formed in the side surface of the bin body, and the slag taking port is communicated with the upper inlet and the lower outlet; the filter residue net is fixedly arranged at the lower outlet.

Furthermore, a transparent panel is detachably connected at the slag taking opening.

Furthermore, the transparent panel is provided with a connecting through hole, the bin body is provided with a threaded hole, and the slag discharging device further comprises a connecting screw which penetrates through the connecting through hole and is screwed in the threaded hole.

Further, the bin body is fixedly provided with an upper slide rail and a lower slide rail, the slag taking port is located between the upper slide rail and the lower slide rail, the position of the transparent panel corresponding to the upper slide rail is fixedly provided with an upper slide block, the position of the transparent panel corresponding to the lower slide rail is fixedly provided with a lower slide block, the upper slide block is in sliding connection with the upper slide rail, and the lower slide block is in sliding connection with the lower slide rail.

Further, the filter residue net is a casting piece.

Further, the filter residue net is detachably connected with the bin body.

Furthermore, a plurality of supporting rods extend towards the center of the inner wall of the bin body, and the filter residue net is lapped on the plurality of supporting rods.

Furthermore, an expansion joint is connected between the lower outlet of the bin body and the inlet end of the second ash hopper.

Further, the on-off valve is a gate valve.

The utility model discloses the beneficial effect that row's sediment device brought is:

a slag discharging device is arranged between a first ash hopper and a second ash hopper of the coal economizer ash conveying system, wherein the second ash hopper is used as a buffering ash hopper; the slag discharging device comprises an on-off valve arranged at the outlet end of the first ash bucket, a slag crusher arranged below the on-off valve, a slag removing bin arranged below the slag crusher and a filter residue net fixedly arranged at the lower outlet of the slag removing bin. Specifically, the slag crusher is used for crushing ash falling through the shut-off valve; the slag removing bin comprises an upper inlet, a bin body and a lower outlet, the upper inlet, the bin body and the lower outlet are sequentially arranged from top to bottom, the upper inlet is connected to the outlet end of the slag crusher, the lower outlet is connected to the inlet end of the second ash bucket, and a slag taking port communicated with the upper inlet and the lower outlet is formed in the side face of the bin body.

When the ash conveying system of the economizer adopts the slag discharging device, the slag discharging device is arranged between the first ash hopper and the second ash hopper of the ash conveying system of the economizer. And in the working process of the coal economizer ash conveying system, the on-off valve is opened to be in an on state and the slag crusher is in an operating state. When ash slag is discharged from the outlet end of the first ash hopper, the ash slag enters the ash crusher through the on-off valve, and the ash slag is used for chopping larger ash slag blocks to reduce the particle size of the ash slag; the small ash slag subjected to slag crushing by the slag crusher continuously flows downwards, enters the bin body through the upper inlet of the slag removing bin, and continuously flows to the lower outlet of the slag removing bin under the action of self gravity; when ash in the slag removing bin flows to the lower outlet, the ash is filtered by the filter screen, so that ash with smaller particle size passes through the filter screen, ash with larger particle size is remained on the filter screen, and simultaneously, netty or iron wire impurities in the ash can be filtered by the filter screen; when the ash residue left on the filter residue net is more, the ash residue left on the filter residue net can be taken out through the residue taking port by a worker, so that the normal work of the filter residue net is ensured.

Through set up above-mentioned sediment device of arranging in economizer ash conveying system, on the one hand, can utilize the slag crusher to cut up bold lime-ash, make it become the lime-ash that the particle diameter is less, and, can also utilize the filter residue net to filter this part lime-ash, avoid the lime-ash that the particle diameter is bigger than the great to get into in the second ash bucket, reduced the lime-ash and piled up in the second ash bucket, the risk of jam, and simultaneously, also filter netted or iron wire class debris, prevent this part debris from getting into the sediment pipeline and causing the jam, make the lime-ash in the economizer ash conveying system can normally carry, thereby the state that the economizer ash conveying system that leads to because of the lime-ash can's unable transport that exists among the prior art is in unable operation has been improved effectively.

On the other hand, get the cinder notch through seting up on the storehouse body, the staff of being convenient for observes the lime-ash in the storehouse body to learn in real time and arrange the current operating condition of sediment device, thereby be convenient for maintain arranging the sediment device, moreover, the staff can also take out the lime-ash that the particle diameter is bigger than normal in will not getting into the second ash bucket through getting the cinder notch, in order to guarantee the operational reliability of filter residue net, and reduce the wearing and tearing of lime-ash to pipeline inner wall.

A second object of the utility model is to provide an economizer ash conveying system to solve the technical problem that the ash sediment that current economizer ash conveying system leads to because of the burnt piece is piled up, is stopped up in buffering ash bucket can't be carried.

The utility model provides an economizer ash conveying system, including first ash bucket, second ash bucket and above-mentioned row's sediment device.

The utility model discloses beneficial effect that economizer ash conveying system brought is:

by arranging the slag discharging device in the ash conveying system of the economizer, the ash conveying system of the economizer has all the advantages of the slag discharging device, and the details are not repeated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural view of the slag discharging device installed at the outlet end of the first ash bucket according to the embodiment of the present invention.

Description of reference numerals:

100-a first ash bucket; 200-a slag discharge device; 300-a second ash bucket;

210-on-off valve; 220-a slag crusher; 230-a slag removal bin; 240-filter residue net; 250-a telescopic joint;

231-a transparent panel; 232-connecting screws.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural view illustrating a slag discharging device 200 installed at an outlet end of a first hopper 100 according to the present embodiment. As shown in fig. 1, the present embodiment provides a slag discharging device 200, the slag discharging device 200 is installed between a first ash hopper 100 and a second ash hopper 300 of an economizer ash conveying system, wherein the second ash hopper 300 is a buffer ash hopper, and the slag discharging device 200 comprises an on-off valve 210, a slag crusher 220, a slag removing bin 230 and a slag filtering net 240. Specifically, the on-off valve 210 is provided at the outlet end of the first hopper 100; a slag crusher 220 is disposed below the on-off valve 210, the slag crusher 220 being configured to crush the slag falling through the on-off valve 210; the slag removing bin 230 comprises an upper inlet, a bin body and a lower outlet which are communicated from top to bottom, the upper inlet is connected with the outlet end of the slag crusher 220, the lower outlet is connected with the inlet end of the second ash hopper 300, the side surface of the bin body is provided with a slag taking port, and the slag taking port is communicated with the upper inlet and the lower outlet; the residue filtering screen 240 is fixedly arranged at the lower outlet.

When the economizer ash conveying system adopts the slag discharging device 200, the slag discharging device 200 is arranged between the first ash hopper 100 and the second ash hopper 300 of the economizer ash conveying system. In the working process of the economizer ash conveying system, the on-off valve 210 is opened to be in a conducting state, and the slag crusher 220 is in an operating state. When ash is discharged from the outlet end of the first ash hopper 100, the ash enters the ash crusher 220 through the on-off valve 210, and the ash crusher 220 crushes larger ash blocks to reduce the particle size of the ash; the small ash slag subjected to slag crushing by the slag crusher 220 continuously flows downwards, enters the bin body through the upper inlet of the slag removing bin 230, and continuously flows to the lower outlet of the slag removing bin 230 under the action of self gravity; when ash in the slag removing bin 230 flows to the lower outlet, the ash is filtered by the filter screen 240, so that ash with smaller particle size passes through the filter screen 240, ash with larger particle size is retained on the filter screen 240, and simultaneously, netty or iron wire impurities in the ash can be filtered by the filter screen 240; when more ash and slag remain on the filter residue net 240, the ash and slag remaining on the filter residue net 240 can be taken out through the slag taking port by a worker, so that the normal work of the filter residue net 240 is ensured.

Through set up above-mentioned sediment device 200 of arranging in economizer ash conveying system, on the one hand, can utilize slag crusher 220 to cut up bold lime-ash, make it become the lime-ash that the particle diameter is less, and, can also utilize filter residue net 240 to filter this part lime-ash, avoid the lime-ash that the particle diameter is bigger than the beginning to get into in second ash bucket 300, the risk that the lime-ash piles up, the jam in second ash bucket 300 has been reduced, and simultaneously, also filter netted or iron wire class debris, prevent this part debris from getting into the sediment pipeline and causing the jam, make the lime-ash in the economizer ash conveying system can normally carry, thereby the state that the economizer ash conveying system that leads to because of the unable transport of lime-ash that exists among the prior art is in unable operation has been improved effectively.

On the other hand, get the cinder notch through seting up on the storehouse body, the staff of being convenient for observes the lime-ash in the storehouse body to learn in real time and arrange the current operating condition of sediment device 200, thereby be convenient for maintain sediment device 200, moreover, the staff can also take out through getting the cinder notch with the particle size bigger than normal that does not get into in the second ash bucket 300, in order to guarantee filter residue net 240's operational reliability, and reduce the wearing and tearing of lime-ash to pipeline inner wall.

In this embodiment, the particle size of the ash crushed by the slag crusher 220 is less than 10mm, the rotation speed of the slag crusher 220 is lower than 180rpm, and the maximum slag discharge amount is about 7.5m³And h, the body of the slag crusher 220 is made of heat-resistant structural steel, and the internal main part is wear-resistant alloy steel capable of resisting the temperature of more than 300 ℃. The slag crusher 220 may be a jaw crusher.

It should be noted that the structure of the slag crusher 220 and how to connect it between the first ash hopper 100 and the slag removing bin 230 for crushing the ash are well known in the art, and the present embodiment does not improve it, so the description thereof is omitted.

Referring to fig. 1, in the present embodiment, a transparent panel 231 is detachably connected to the slag-removing opening.

When the slag discharging device 200 is in operation, the transparent panel 231 is in a state of closing the slag taking port, and a worker can observe the condition in the slag removing bin 230 through the transparent panel 231. When large-particle ash and impurities remained in the slag removing bin 230 are more, the transparent panel 231 can be detached to clean and remove the large-particle ash and impurities in the slag removing bin 230.

Through setting up transparent panel 231 getting sediment mouth department for this arrange sediment device 200 when satisfying the condition that the staff can in time see in the sediment storehouse 230 that removes, can also reduce the diffusion of the outside environment of dust in the sediment storehouse 230, not only protected the environment, moreover, still reduced the adverse effect of dust impurity to the staff health. And, transparent panel 231 can dismantle the form that sets up in getting slag notch department, and the staff of being convenient for dismantles it to maintain.

Referring to fig. 1, in the present embodiment, the transparent panel 231 is provided with a connecting through hole, the bin body is provided with a threaded hole, the slag discharging device 200 further includes a connecting screw 232, and the connecting screw 232 passes through the connecting through hole and is screwed into the threaded hole.

The detachable fixed connection mode of the transparent panel 231 and the bin body is reliable in connection, simple in structure, low in setting cost and easy to realize.

Specifically, in this embodiment, the transparent panel 231 is provided with eight connecting through holes, the eight connecting through holes are arranged at intervals along the outer contour of the transparent panel 231, correspondingly, the bin body is provided with eight threaded holes corresponding to the bin body one by one, and the number of the connecting screws 232 is also eight. So set up, the reliability of being connected of transparent panel 231 and storehouse body has further been guaranteed.

In other embodiments, an upper slide rail and a lower slide rail may also be fixedly disposed on the bin body, wherein the slag taking port is located between the upper slide rail and the lower slide rail, an upper slider is fixedly disposed at a position of the transparent panel 231 corresponding to the upper slide rail, a lower slider is fixedly disposed at a position of the transparent panel 231 corresponding to the lower slide rail, the upper slider is slidably connected to the upper slide rail, and the lower slider is slidably connected to the lower slide rail.

In the form of sliding connection of the transparent panel 231 and the bin body, when the slag taking opening needs to be opened, only the transparent panel 231 needs to be pulled and pulled, so that the upper sliding block slides in the upper sliding rail and the lower sliding block slides in the lower sliding rail; when the slag-removing opening needs to be closed, the transparent panel 231 only needs to be pushed back along the direction opposite to the drawing direction. So set up, can improve staff's the sediment efficiency of getting.

Preferably, in this embodiment, the strainer 240 is a casting. So set up, when satisfying the net-shaped or iron wire class debris that prevent in the lime-ash and get into the sediment pipeline and cause the jam, can also reduce the acquisition cost of filter residue net 240.

Preferably, in this embodiment, the filtering screen 240 is detachably connected to the silo body. When clogging occurs in the use of the strainer 240 for a while, the strainer 240 can be taken out to be cleaned and maintained, and when the strainer 240 is deformed or damaged, it can be conveniently replaced.

Specifically, a plurality of support rods extending toward the center may be fixedly disposed on the inner wall of the bin body, so that the residue filtering net 240 is lapped on the plurality of support rods. The detachable connection of the filter screen 240 to the silo body not only facilitates the taking of the filter screen 240, but also reduces the blockage of the effective filtering area of the filter screen 240, thereby ensuring the filtering efficiency of the filter screen 240.

Referring to fig. 1, in the present embodiment, an expansion joint 250 is connected between the lower outlet of the bin body and the inlet end of the second ash hopper 300. The arrangement of the telescopic joint 250 enables the slag discharging device 200 to compensate for the length change of the pipeline, and prevents the pipeline from deviating to cause leakage.

Referring to fig. 1, in the present embodiment, the on-off valve 210 is a gate valve. The arrangement is such that when the on-off valve 210 is in the closed state, the first hopper 100 and the second hopper 300 are completely blocked from each other, and the ash is prevented from flowing downward.

In addition, the present embodiment further provides an ash conveying system of an economizer, which includes a first ash hopper 100, a second ash hopper 300 and the slag discharging device 200.

By providing the slag discharging device 200 in the ash conveying system of the economizer, the ash conveying system of the economizer has all the advantages of the slag discharging device 200, and therefore, the detailed description thereof is omitted.

Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one of ordinary skill in the pertinent art without departing from the scope or spirit of the present invention, and the scope of the present invention is defined by the appended claims.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the above embodiments, the descriptions of the orientations such as "up", "down", and the like are based on the drawings.

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 slag discharging device is characterized by being installed between a first ash bucket (100) and a second ash bucket (300) of an ash conveying system of an economizer, wherein the second ash bucket (300) is a buffering ash bucket, the slag discharging device comprises an on-off valve (210), a slag crusher (220), a slag removing bin (230) and a slag filtering net (240), and the on-off valve (210) is arranged at the outlet end of the first ash bucket (100); the slag crusher (220) is arranged below the on-off valve (210), and the slag crusher (220) is configured to crush the slag falling through the on-off valve (210); the slag removing bin (230) comprises an upper inlet, a bin body and a lower outlet which are communicated from top to bottom, the upper inlet is connected with the outlet end of the slag crusher (220), the lower outlet is connected with the inlet end of the second ash bucket (300), a slag taking port is formed in the side surface of the bin body, and the slag taking port is communicated with the upper inlet and the lower outlet; and the filter residue screen (240) is fixedly arranged at the lower outlet.

2. Slag discharge device according to claim 1, characterized in that a transparent panel (231) is detachably connected to the slag-taking opening.

3. The slag discharge device according to claim 2, wherein the transparent panel (231) is provided with a connecting through hole, the bin body is provided with a threaded hole, the slag discharge device further comprises a connecting screw (232), and the connecting screw (232) passes through the connecting through hole and is screwed in the threaded hole.

4. The slag discharge device according to claim 2, wherein the bin body is fixedly provided with an upper slide rail and a lower slide rail, the slag taking port is located between the upper slide rail and the lower slide rail, the transparent panel (231) is fixedly provided with an upper slide block at a position corresponding to the upper slide rail, and the transparent panel (231) is fixedly provided with a lower slide block at a position corresponding to the lower slide rail, wherein the upper slide block is slidably connected with the upper slide rail, and the lower slide block is slidably connected with the lower slide rail.

5. Slag discharge device according to claim 1, characterized in that the strainer (240) is a cast part.

6. Slag discharge device according to claim 1, characterized in that the screen (240) is detachably connected to the bin body.

7. The slag discharge device according to claim 4, wherein a plurality of support rods extend from the inner wall of the bin body to the center, and the filter screen (240) is connected to the plurality of support rods.

8. The slag discharge device according to any one of claims 1-7, wherein a telescopic joint (250) is connected between the lower outlet of the bin body and the inlet end of the second hopper (300).

9. The slag discharge device according to any of the claims 1-7, characterized in that the on-off valve (210) is a gate valve.

10. An economizer ash conveying system, characterized in that it comprises a first ash hopper (100), a second ash hopper (300) and an ash discharge device according to any one of claims 1-9.

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