CN214664384U - Low-ammonia denitration-based clinker calcination process decomposing furnace coal powder combustion system - Google Patents
Low-ammonia denitration-based clinker calcination process decomposing furnace coal powder combustion system Download PDFInfo
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- CN214664384U CN214664384U CN202120347461.1U CN202120347461U CN214664384U CN 214664384 U CN214664384 U CN 214664384U CN 202120347461 U CN202120347461 U CN 202120347461U CN 214664384 U CN214664384 U CN 214664384U
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- Prior art keywords
- decomposing furnace
- communicated
- furnace body
- combustion system
- coal
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- 239000003245 coal Substances 0.000 title claims abstract description 51
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 22
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 17
- 238000001354 calcination Methods 0.000 title claims abstract description 11
- 238000000034 method Methods 0.000 title claims abstract description 11
- 239000000843 powder Substances 0.000 title claims abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 47
- 238000002347 injection Methods 0.000 claims abstract description 22
- 239000007924 injection Substances 0.000 claims abstract description 22
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 17
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 8
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 238000005516 engineering process Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000003344 environmental pollutant Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000006722 reduction reaction Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010531 catalytic reduction reaction Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Abstract
The utility model discloses a clinker calcining process decomposing furnace coal powder combustion system based on low ammonia denitration, which comprises a base, a first conveying pipe, a tertiary air pipe, a decomposing furnace body and a pipeline distribution device, a coal bin is fixedly arranged on one side of the upper surface of the base, a discharge hopper is communicated and arranged on the lower surface of the coal bin, the discharge hopper is communicated and installed with the first conveying pipe through a second conveying pipe, one end of the first conveying pipe is communicated and installed with one side of the pipeline distribution device, the top end of the pipeline distribution device is communicated and provided with four coal injection pipes in an orthogonal array, the top ends of the four coal injection pipes are communicated and arranged with the decomposing furnace body, the top end of the outer wall of the decomposing furnace body is openly communicated and installed with one end of a tertiary air pipe, the decomposing furnace body at the upper end and the lower end of the tertiary air pipe are communicated and installed with a discharging pipe, and an ammonia water spray gun body is embedded and installed on one side of the top end of the outer wall of the decomposing furnace body. The utility model provides a denitration system aqueous ammonia quantity on the high side and the denitration cost problem on the high side.
Description
Technical Field
The utility model relates to a decomposing furnace combustion system technical field specifically is a grog calcines technology decomposing furnace coal dust combustion system based on low ammonia denitration.
Background
The environmental pollution is becoming more and more serious, and the national requirements for environmental protection are continuously improved. Industrial boiler NOx emissions are one of the major sources of major atmospheric pollution. The emission standard of cement industrial atmospheric pollutants issued in 2013 in China stipulates that new enterprises execute the emission limit value of nitrogen oxide pollutants of 400mg/m from 3 month and 1 day of 2014 and existing enterprises execute the emission limit value of nitrogen oxide pollutants of 7 mg/m from 7 month and 1 day of 2015, so that higher requirements are provided for the existing low-nitrogen combustion technology of the decomposing furnace.
At present, the low-NO technologies of the cement decomposing furnace widely applied and mature, such as air classification in the furnace, fuel classification, a low-nitrogen burner and the like, need to be matched with tail flue gas denitration (such as Selective Catalytic Reduction (SCR), selective non-catalytic reduction (SNCR) and the like) to meet the national standard (GB 4915-2013). The SCR and SNCR technologies reduce NO by spraying an ammonia reducing agent into flue gas, but still have the problems of higher ammonia water consumption and higher denitration cost of a denitration system, so that a clinker calcination process decomposing furnace coal powder combustion system based on low-ammonia denitration is urgently needed to meet the market demand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a grog calcines technology decomposing furnace coal powder combustion system based on low ammonia denitration possesses the advantage that reduces the aqueous ammonia quantity and practice thrift the cost, has solved the problem that the aqueous ammonia quantity of deNOx systems is on the high side and the denitration cost is on the high side.
In order to achieve the above object, the utility model provides a following technical scheme: a clinker calcination process decomposing furnace coal powder combustion system based on low-ammonia denitration comprises a base, a first conveying pipe, a tertiary air pipe, a decomposing furnace body, a pipeline distribution device, a fan body and a support frame, a coal bin is fixedly arranged on one side of the upper surface of the base, a discharge hopper is communicated and arranged on the lower surface of the coal bin, the discharge hopper is communicated and installed with the first conveying pipe through a second conveying pipe, one end of the first conveying pipe is communicated and installed with one side of the pipeline distribution device, the top end of the pipeline distribution device is communicated and provided with four coal injection pipes in an orthogonal array, the top ends of the four coal injection pipes are communicated and arranged with the decomposing furnace body, the top end of the outer wall of the decomposing furnace body is openly communicated and installed with one end of a tertiary air pipe, the decomposing furnace body at the upper end and the lower end of the tertiary air pipe are communicated and installed with a discharging pipe, and an ammonia water spray gun body is embedded and installed on one side of the top end of the outer wall of the decomposing furnace body.
Preferably, the equal fixedly connected with second bracing piece in coal bunker lower surface four corners department, the equal fixed mounting in base upper surface in four second bracing piece bottom.
Preferably, the number of the discharge hoppers is four, the four discharge hoppers are equidistantly distributed on the lower surface of the coal bunker, and the four discharge hoppers are respectively communicated with the first conveying pipe through second conveying pipes.
Preferably, the lower surface of the pipeline distribution device is fixedly arranged on the upper surface of the base below the decomposing furnace body.
Preferably, the four coal injection pipes are respectively and fixedly provided with a fixing frame, and the opposite ends of the four fixing frames are fixedly connected with the outer wall of the decomposing furnace body.
Preferably, the end, far away from the decomposing furnace body, of the tertiary air pipe is communicated with the fan body, the fan body is fixedly installed on the upper surface of the support frame, and the bottom end of the support frame is fixedly connected with the upper surface of the base.
Preferably, four first supporting rods are fixedly installed below the outer wall of the decomposing furnace body in a rectangular array, and the bottom ends of the four first supporting rods are fixedly connected with the upper surface of the base.
Compared with the prior art, the beneficial effects of the utility model are as follows:
the utility model discloses a set up pipeline distributor, and through pipeline distributor and coal injection pipe intercommunication installation, carry out the coal injection operation in to the dore furnace through the coal injection pipe, and with the coal injection point setting in the throat of dore furnace body, and simultaneously, through install the unloading pipe on the dore furnace body at both ends about the cubic tuber pipe, and spout the ammonia into the dore furnace through the ammonia spray gun body, the ammonia is through burning at the dore furnace body, thereby make the ammonia take place the reduction at the dore furnace body, the effect that reduces the ammonia input and practice thrift the cost has been reached.
Drawings
Fig. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a right side view of the structure of the present invention;
fig. 3 is a left side view structure diagram of the present invention;
fig. 4 is a schematic top view of the present invention.
In the figure: 1. a base; 2. a first feed delivery pipe; 3. a second delivery pipe; 4. a discharge hopper; 5. a coal bunker; 6. a tertiary air pipe; 7. a discharging pipe; 8. an ammonia water spray gun body; 9. a coal injection pipe; 10. a fixed mount; 11. a decomposing furnace body; 12. a first support bar; 13. a pipeline distribution device; 14. a fan body; 15. a support frame; 16. a second support bar.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 4, the present invention provides an embodiment: the utility model provides a grog calcines technology decomposing furnace pulverized coal combustion system based on low ammonia denitration, includes base 1, first conveying pipeline 2, tertiary tuber pipe 6, decomposing furnace body 11, pipeline distributor 13, fan body 14 and support frame 15, and 1 upper surface one side fixed mounting of base has coal bunker 5, and 5 lower surface four corners departments of coal bunker all fixedly connected with second bracing piece 16, the equal fixed mounting in 1 upper surface of base in four second bracing pieces 16 bottoms. Hopper 4 is installed in 5 lower surface intercommunications in coal bunker, goes out hopper 4 and communicates the installation through second conveying pipeline 3 and first conveying pipeline 2, goes out hopper 4 quantity and is four, and four play hopper 4 equidistance distribute at 5 lower surfaces in coal bunker, and four play hoppers 4 are installed through second conveying pipeline 3 and first conveying pipeline 2 intercommunication respectively.
One end of the first conveying pipeline 2 is communicated with one side of the pipeline distribution device 13, the top end of the pipeline distribution device 13 is provided with four coal injection pipes 9 in an orthogonal array, the four coal injection pipes 9 are respectively and fixedly provided with a fixing frame 10, and one ends, opposite to the four fixing frames 10, of the four fixing frames are fixedly connected with the outer wall of the decomposing furnace body 11. The top ends of the four coal injection pipes 9 are communicated with the decomposing furnace body 11, and the lower surface of the pipeline distribution device 13 is fixedly arranged on the upper surface of the base 1 below the decomposing furnace body 11. The top end of the outer wall of the decomposing furnace body 11 is openly communicated with one end of the tertiary air pipe 6 for installation, one end of the tertiary air pipe 6, which is far away from the decomposing furnace body 11, is communicated with the fan body 14 for installation, the fan body 14 is fixedly installed on the upper surface of the support frame 15, and the bottom end of the support frame 15 is fixedly connected with the upper surface of the base 1. All communicate on the decomposing furnace body 11 at both ends about tertiary tuber pipe 6 and install unloading pipe 7, decomposing furnace body 11 outer wall top one side embedding is installed ammonia water spray gun body 8. Through setting up pipeline distributor 13, and through pipeline distributor 13 and the installation of coal powder injection pipe 9 intercommunication, carry out the coal powder injection operation in to the decomposition furnace through coal powder injection pipe 9, and with the coal powder injection point setting in the throat department of decomposition furnace body 11, and simultaneously, through installing unloading pipe 7 on the decomposition furnace body 11 at both ends about tertiary tuber pipe 6, and spout the aqueous ammonia into the decomposition furnace through aqueous ammonia spray gun body 8, the aqueous ammonia is through reacting at decomposition furnace body 11, thereby make the aqueous ammonia take place the reduction at decomposition furnace body 11, reached the effect that reduces the aqueous ammonia input and practice thrift the cost. Four first support rods 12 are fixedly arranged below the outer wall of the decomposing furnace body 11 in a rectangular array, and the bottom ends of the four first support rods 12 are fixedly connected with the upper surface of the base 1.
The working principle is as follows: the utility model discloses pour into the operation into the raw materials to decomposing furnace body 11 in through unloading pipe 7 during the use, simultaneously, the coal charge pours into the throat of decomposing furnace body 11 into through coal injection pipe 9 to by the aqueous ammonia injection of ammonia spray gun body 8 in to decomposing furnace body 11, through the aqueous ammonia in the decomposing furnace reaction and reduction, thereby the use amount of the aqueous ammonia that significantly reduces, and then reach the requirement of practicing thrift the cost.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a grog calcines technology dore furnace coal powder combustion system based on low ammonia denitration, includes base (1), first conveying pipeline (2), tertiary tuber pipe (6), dore furnace body (11), pipeline distributor (13), fan body (14) and support frame (15), its characterized in that: a coal bunker (5) is fixedly arranged on one side of the upper surface of the base (1), a discharge hopper (4) is communicated and arranged on the lower surface of the coal bunker (5), the discharge hopper (4) is communicated with the first material conveying pipe (2) through a second material conveying pipe (3), one end of the first material conveying pipe (2) is communicated and installed with one side of the pipeline distribution device (13), the top ends of the pipeline distribution devices (13) are communicated and provided with four coal injection pipes (9) in an orthogonal array, the top ends of the four coal injection pipes (9) are communicated and arranged with the decomposing furnace body (11), the front surface of the top end of the outer wall of the decomposing furnace body (11) is communicated with one end of the tertiary air pipe (6), the decomposing furnace bodies (11) at the upper end and the lower end of the tertiary air pipe (6) are respectively communicated with a discharging pipe (7), an ammonia water spray gun body (8) is embedded into one side of the top end of the outer wall of the decomposing furnace body (11).
2. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: equal fixedly connected with second bracing piece (16) in coal bunker (5) lower surface four corners department, four equal fixed mounting in base (1) upper surface in second bracing piece (16) bottom.
3. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: go out hopper (4) quantity and be four, four play hopper (4) equidistance distribute at coal bunker (5) lower surface, four play hopper (4) are installed through second conveying pipeline (3) and first conveying pipeline (2) intercommunication respectively.
4. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: the lower surface of the pipeline distribution device (13) is fixedly arranged on the upper surface of the base (1) below the decomposing furnace body (11).
5. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: four coal injection pipes (9) are respectively and fixedly provided with a fixing frame (10), and the opposite ends of the four fixing frames (10) are fixedly connected with the outer wall of the decomposing furnace body (11).
6. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: one end, far away from the decomposing furnace body (11), of the tertiary air pipe (6) is communicated with the fan body (14) to be installed, the fan body (14) is fixedly installed on the upper surface of the supporting frame (15), and the bottom end of the supporting frame (15) is fixedly connected with the upper surface of the base (1).
7. The clinker calcination process decomposing furnace pulverized coal combustion system based on low ammonia denitration according to claim 1, characterized in that: four first supporting rods (12) are fixedly mounted below the outer wall of the decomposing furnace body (11) in a rectangular array mode, and the bottom ends of the four first supporting rods (12) are fixedly connected with the upper surface of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120347461.1U CN214664384U (en) | 2021-02-07 | 2021-02-07 | Low-ammonia denitration-based clinker calcination process decomposing furnace coal powder combustion system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120347461.1U CN214664384U (en) | 2021-02-07 | 2021-02-07 | Low-ammonia denitration-based clinker calcination process decomposing furnace coal powder combustion system |
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| Publication Number | Publication Date |
|---|---|
| CN214664384U true CN214664384U (en) | 2021-11-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120347461.1U Expired - Fee Related CN214664384U (en) | 2021-02-07 | 2021-02-07 | Low-ammonia denitration-based clinker calcination process decomposing furnace coal powder combustion system |
Country Status (1)
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|---|---|
| CN (1) | CN214664384U (en) |
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2021
- 2021-02-07 CN CN202120347461.1U patent/CN214664384U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |