CN217397388U - SCR denitration ash conveying device - Google Patents
SCR denitration ash conveying device Download PDFInfo
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- CN217397388U CN217397388U CN202221022689.4U CN202221022689U CN217397388U CN 217397388 U CN217397388 U CN 217397388U CN 202221022689 U CN202221022689 U CN 202221022689U CN 217397388 U CN217397388 U CN 217397388U
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Abstract
The utility model relates to the technical field of denitration, and discloses a SCR denitration ash conveying device, which comprises an ash conveying hopper, wherein the top end of the ash conveying hopper is connected with a gas conveying pipeline in a conduction way, the gas conveying pipeline is connected with an external gas source, and the top end of the gas conveying pipeline is connected with a discharge pipe; the bottom end of the ash conveying hopper is in conduction connection with a supporting seat, and the supporting seat is arranged on the gate valve; the ash conveying hopper is rotatably arranged between the gas conveying pipeline and the supporting seat through a power mechanism, and scrapers for cleaning the inner wall of the ash conveying hopper are arranged in the supporting seat and the gas conveying pipeline; the utility model discloses, can in time clear away the ash material of adhesion on the ash bucket inner wall in time, reduce the probability that the ash bucket takes place to block up, ensure work efficiency.
Description
Technical Field
The utility model relates to a denitration technical field especially relates to a defeated grey device of SCR denitration.
Background
In the field of cement kiln flue gas treatment, the cement SCR denitration technology is developed rapidly; because the dust content in the cement industry is large, in the reaction process, the denitration reactor and the flue part need to discharge ash outwards, and because the externally discharged ash (cement raw material) has the characteristics of high viscosity and high temperature, the ash is very easy to adhere to the inner wall of an ash bucket during ash discharge, if the ash is not treated in time, the ash bucket is blocked, equipment deformation and ash conveying paralysis can be caused in serious cases, the normal operation of the system is influenced, and the working efficiency is low; the existing operation generally adopts a bin wall vibrator to vibrate an ash bucket, but because the viscosity of ash is high, the effect of simply using the bin wall vibrator is limited, and the effect is not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a defeated grey device of SCR denitration can in time clear away the ash material of adhesion on the ash bucket inner wall in time, reduces the probability that the ash bucket takes place to block up, ensures work efficiency.
The utility model adopts the following technical scheme:
an SCR denitration ash conveying device comprises an ash conveying hopper, wherein the top end of the ash conveying hopper is in conduction connection with a gas conveying pipeline, the gas conveying pipeline is in conduction with an external gas source, and the top end of the gas conveying pipeline is connected with a discharge pipe; the bottom end of the ash conveying hopper is in conduction connection with a supporting seat, and the supporting seat is arranged on the gate valve; the ash conveying hopper is rotatably arranged between the gas conveying pipeline and the supporting seat through a power mechanism, and scrapers for cleaning the inner wall of the ash conveying hopper are arranged in the supporting seat and the gas conveying pipeline.
Preferably, the power mechanism comprises a transmission gear arranged outside the ash conveying hopper, a support rod is arranged between the gas conveying pipeline and the gate valve, a driving motor is arranged on the support rod, and a driving gear meshed with the transmission gear is arranged on the driving motor.
Preferably, the two support rods are symmetrically arranged, and the support rod without the driving motor is rotatably arranged on a guide gear.
Preferably, a gas containing cavity is arranged on the pipe wall of the gas transmission pipeline, the gas containing cavity is communicated with a gas source, and a gas hole communicated with the gas containing cavity is arranged on the inner wall of the gas transmission pipeline and is obliquely and downwards arranged.
Preferably, the inclination of the air holes increases from top to bottom.
Preferably, the top end of the gas containing cavity is provided with a gas conveying pipe in a conduction mode, and the gas conveying pipe is provided with a flow meter and an adjusting valve.
Preferably, the ash conveying hopper, the gas conveying pipeline and the supporting seat are rotatably connected by adopting a slewing bearing.
Preferably, the gas transmission pipeline is provided with two scrapers extending downwards, and the supporting seat is provided with two scrapers extending upwards.
Preferably, the length of each scraper is smaller than the length of the inner wall of the ash conveying hopper from top to bottom; the sum of the lengths of the two scrapers is greater than the length of the inner wall of the ash conveying hopper from top to bottom.
Preferably, four of the scrapers are alternately arranged in a staggered manner.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model arranges the scrapers in the gas transmission pipeline and the supporting seat, and rotationally arranges the ash conveying bucket, so that the purpose of removing ash adhered on the inner wall of the ash conveying bucket can be realized through the rotation of the ash conveying bucket when the ash is conveyed, and the probability of blockage of the ash conveying bucket caused by accumulation of the ash is reduced; the arrangement of the gas transmission pipeline is convenient for the compressed air to assist the falling of the ash material when the scraper cleans, hangs and sweeps the inner wall of the ash conveying hopper.
Furthermore, the gas accommodating cavity on the gas transmission pipeline can provide a flowing space for gas to enter the gas transmission pipeline; the slope setting of gas pocket can provide the direction for compressed air's flow, guarantees that gaseous blowing to ash conveying bucket inner wall and ash conveying bucket below provides supplementary for the whereabouts of ash material.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present application;
fig. 2 is a cross-sectional view of an embodiment of the present application.
Detailed Description
The invention will be described more fully hereinafter with reference to the accompanying drawings and examples in which:
as shown in fig. 1 to 2, the SCR denitration ash conveying device of the present invention comprises an ash conveying bucket 1, wherein the top end of the ash conveying bucket 1 is connected with a gas conveying pipeline 2 which is communicated with a gas source through a flange, and compressed air is conveyed into the gas conveying pipeline 2 to assist the ash falling and reduce the adhesion of the ash on the inner wall of the ash conveying bucket 1; the top end of the gas transmission pipeline 2 is connected with a discharge pipe 3 through a flange; the bottom end of the ash conveying bucket 1 is in conduction connection with a hollow supporting seat 4 through a flange, the supporting seat 4 is arranged on a gate valve 5, and the gate valve 5 can control the opening and closing of the bottom end of the ash conveying bucket 1, so that convenience is brought to the follow-up maintenance of the ash conveying bucket 1; the ash conveying hopper 1 is rotatably arranged between the gas conveying pipeline 2 and the supporting seat 4 through a power mechanism; wherein the supporting seat 4 is provided with a scraper 6 which extends upwards into the ash conveying bucket 1, and the gas pipeline 2 is provided with a scraper 6 which extends downwards into the ash conveying bucket 1, so that ash adhered to the inner wall of the ash conveying bucket 1 can be removed in time when the ash conveying bucket 1 rotates, and the cleaning operation of the inner wall of the ash conveying bucket 1 is completed. Preferably, two scrapers 6 are arranged on the gas transmission pipeline 2 and the support seat 4, and the length of each scraper 6 is smaller than the length of the inner wall of the ash conveying bucket 1 from top to bottom so as to reduce the resistance of the scrapers 6 in working; the sum of the lengths of the two scrapers 6 is greater than the length of the inner wall of the ash conveying bucket 1 from top to bottom, so that the cleaning areas of the upper and lower scrapers 6 are overlapped when the ash conveying bucket 1 rotates, and the cleaning effect is ensured; further, the four scrapers 6 are preferably arranged alternately one above the other to ensure the cleaning effect.
Further, in the utility model, the power mechanism comprises a transmission gear 7 arranged outside the ash conveying bucket 1, a support rod 8 is vertically arranged between the gas pipeline 2 and the gate valve 5, a driving motor 9 is arranged on the support rod 8, a driving gear 10 meshed with the transmission gear 7 is arranged on the driving motor 9, and the driving gear 10 is driven to rotate by the driving motor 9, so that the transmission gear 7 is driven to rotate to realize the rotation of the ash conveying bucket 1; two support rods 8 are symmetrically arranged and symmetrically distributed at two ends of the ash conveying hopper 1, wherein the support rod 8 at one end opposite to the driving motor 9 is rotatably arranged on a guide gear 11, and the guide gear 11 is meshed with the transmission gear 7 to provide guidance and support for the rotation of the ash conveying hopper 1 and ensure the stable operation of the ash conveying hopper 1; in addition, in order to reduce the friction between defeated ash bucket 1 when rotating and gas transmission pipeline 2 and the supporting seat 4, the utility model discloses it is preferred that defeated and gas transmission pipeline 2 and the supporting seat 4 between defeated ash bucket 1 set up slewing bearing 12 to reduce the frictional force when defeated ash bucket 1 rotates, stability when reinforcing defeated ash bucket 1 rotates.
Further, a gas containing cavity 13 communicated with a gas source is arranged on the pipe wall of the gas transmission pipeline 2, a gas hole 14 communicated with the gas containing cavity 13 is arranged on the inner wall of the gas transmission pipeline 2, and the gas hole 14 is arranged obliquely downwards; through the arrangement of the gas containing cavity 13 and the gas hole 14 in the inclined downward direction, the flow direction of compressed air can be adjusted after the compressed air enters the gas transmission pipeline 2, the compressed air is ensured to be sprayed to the middle lower part of the ash transmission hopper 1, ash is ensured to be discharged along the middle of the ash transmission hopper 1, and the adhesion of the ash on the inner wall of the ash transmission hopper 1 is reduced; meanwhile, the inclined arrangement of the air holes 14 can also reduce the probability of blockage of the ash when the ash falls down. Preferably, the inclination of the air holes 14 is gradually increased from top to bottom, so that the compressed air ejected from the upper air holes 14 is used for assisting the ash to fall, the compressed air ejected from the air holes 14 at the bottom is ejected onto the inner wall of the ash conveying bucket 1, and the auxiliary scraper 6 blows off the ash on the inner wall of the ash conveying bucket 1, thereby reducing the probability of blockage of the ash conveying bucket 1. Furthermore, the utility model discloses still switch on gaseous holding chamber 13 top and be provided with gas delivery pipe 15, gas delivery pipe 15 is last to be provided with flowmeter 16 and governing valve 17 to survey and adjust compressed air's flow.
The utility model discloses at the during operation, through the rotation of defeated ash bucket 1, can realize scraper 6 to the clean operation of its inner wall, it gathers to have reduced the viscosity of ash material on its inner wall, and then reduced the probability that defeated ash bucket 1 takes place to block up, carry compressed air in defeated ash bucket 1 through gas transmission pipeline 2, can assist the ash material whereabouts, reduce the adhesion of ash material at defeated ash bucket 1 inner wall simultaneously, the wall that glues and the jam problem that effectual ash material of solving appears because of viscosity is big, and the work efficiency is improved.
Claims (10)
1. The utility model provides a SCR denitration ash conveying device which characterized in that: the device comprises an ash conveying hopper, wherein the top end of the ash conveying hopper is in conduction connection with a gas pipeline, the gas pipeline is in conduction with an external gas source, and the top end of the gas pipeline is connected with a discharge pipe; the bottom end of the ash conveying hopper is in conduction connection with a supporting seat, and the supporting seat is arranged on the gate valve; the ash conveying hopper is rotatably arranged between the gas conveying pipeline and the supporting seat through a power mechanism, and scrapers for cleaning the inner wall of the ash conveying hopper are arranged in the supporting seat and the gas conveying pipeline.
2. The SCR denitration ash handling device of claim 1, wherein: the power mechanism comprises a transmission gear arranged outside the ash conveying hopper, a support rod is arranged between the gas conveying pipeline and the gate valve, a driving motor is arranged on the support rod, and a driving gear meshed with the transmission gear is arranged on the driving motor.
3. The SCR denitration ash handling device of claim 2, wherein: the two support rods are symmetrically arranged, and the drive motor is not arranged on the support rods, and the guide gears are rotatably arranged on the support rods.
4. The SCR denitration ash handling device of claim 1, wherein: the gas transmission pipeline is characterized in that a gas containing cavity is formed in the pipe wall of the gas transmission pipeline and communicated with a gas source, and a gas hole communicated with the gas containing cavity is formed in the inner wall of the gas transmission pipeline and obliquely and downwards arranged.
5. The SCR denitration ash conveying device of claim 4, wherein: the air holes are sequentially increased in gradient from top to bottom.
6. The SCR denitration ash conveying device of claim 5, wherein: the top end of the gas containing cavity is provided with a gas conveying pipe in a conduction mode, and the gas conveying pipe is provided with a flowmeter and an adjusting valve.
7. The SCR denitration ash handling device of claim 1, wherein: the ash conveying hopper, the gas conveying pipeline and the supporting seat are rotatably connected by adopting a slewing bearing.
8. The SCR denitration ash handling device of claim 1, wherein: the gas transmission pipeline is provided with two scrapers extending downwards, and the supporting seat is provided with two scrapers extending upwards.
9. The SCR denitration ash handling device of claim 8, wherein: the length of each scraper is smaller than the length of the inner wall of the ash conveying hopper from top to bottom; the sum of the lengths of the two scrapers is greater than the length of the inner wall of the ash conveying hopper from top to bottom.
10. The SCR denitration ash handling device of claim 9, wherein: the four scrapers are alternately arranged in a staggered manner one above the other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221022689.4U CN217397388U (en) | 2022-04-29 | 2022-04-29 | SCR denitration ash conveying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221022689.4U CN217397388U (en) | 2022-04-29 | 2022-04-29 | SCR denitration ash conveying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217397388U true CN217397388U (en) | 2022-09-09 |
Family
ID=83142070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221022689.4U Active CN217397388U (en) | 2022-04-29 | 2022-04-29 | SCR denitration ash conveying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217397388U (en) |
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2022
- 2022-04-29 CN CN202221022689.4U patent/CN217397388U/en active Active
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