CN218033223U - Novel special coal injection pipe for kiln tail of dry-method cement kiln - Google Patents
Novel special coal injection pipe for kiln tail of dry-method cement kiln Download PDFInfo
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- CN218033223U CN218033223U CN202222485241.2U CN202222485241U CN218033223U CN 218033223 U CN218033223 U CN 218033223U CN 202222485241 U CN202222485241 U CN 202222485241U CN 218033223 U CN218033223 U CN 218033223U
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Abstract
The utility model discloses a novel dry method cement kiln tail special coal injection pipe, which comprises a main pipe, branch pipes and nozzles, wherein one end of the main pipe and the branch pipes is opened to form an open end, the other end of the main pipe and the branch pipes is closed to form a closed end, the open end of the main pipe is provided with a flange communicated with the main coal pipe through a hose, the closed end of the main pipe is communicated with the open end of the branch pipes, the axis of the branch pipes is vertical to the axis of the main pipe, and the branch pipes are axially provided with an upper nozzle group and a lower nozzle group; the nozzle group comprises at least two nozzles which are uniformly and circumferentially fixed on the outer wall of the branch pipe; the utility model discloses a be responsible for, the cooperation between tub, the nozzle, the buggy is through being responsible for and being in charge of and finally follow the outside blowout of nozzle, because the nozzle is at least two, and the nozzle is fixed in the even circumference of tub outer wall of branch, makes the change that the coal injection mode takes place, and the buggy is more dispersed, enables wind, coal, the more abundant mixture of material, and the burning rate of buggy is faster, and the burning is more complete, more does benefit to energy saving and consumption reduction, reduces cement manufacturing cost.
Description
The technical field is as follows:
the utility model relates to a cement manufacture field especially relates to a novel special coal-injection pipe of dry process cement kiln tail.
The background art comprises the following steps:
energy and environment are two major problems of current social development, chinese resource characteristics and economic development level determine that the social energy structure mainly comprises coal exists for a long time, along with the high-speed development of economic construction, the demand of important building materials such as cement is continuously increased, aiming at the current situation that the cement is fired by taking the coal as main fuel, the characteristics of large demand, high price and the like are provided, energy conservation and consumption reduction are problems which need to be solved urgently, various optimization schemes and innovations of energy conservation and consumption reduction and denitration are not provided to the greatest extent on the problem, particularly, the improvement of a kiln head coal injection system of a cement kiln is provided with advanced technology at home and abroad, but the research on a kiln tail coal injection pipe of the cement kiln is few, and the optimization of the cement kiln tail coal injection pipe of the utility model makes up the defects in the field.
At present, the coal injection pipe for the tail of the cement kiln across the country is directly injected and jet in a rotary mode, and in any mode, pulverized coal is directly sent into a hearth of a decomposing furnace and is driven by wind to be mixed with materials.
The utility model has the following contents:
in order to solve the technical problem, the utility model provides a special coal pipe of cement kiln tail, the coal carbon resource of both having practiced thrift has reduced fuel type NOX again and has generated, has reached energy saving and consumption reduction, and the purpose of denitration is through practical application, and the effect is obvious.
In order to solve the above technical problem, the utility model provides a pair of technical scheme is: the utility model provides a novel special coal-injection pipe of dry process cement kiln tail, is including being responsible for, being in charge of, nozzle, characterized by: one end of the main pipe and one end of the branch pipe are opened to form an open end, the other end of the main pipe and the other end of the branch pipe are closed to form a closed end, the open end of the main pipe is provided with a flange communicated with the main coal pipe through a hose, the closed end of the main pipe is communicated with the open end of the branch pipe, the axis of the branch pipe is vertical to the axis of the main pipe, and the branch pipe is axially provided with an upper layer of nozzle group and a lower layer of nozzle group;
the nozzle group comprises at least two nozzles, the at least two nozzles are uniformly and circumferentially fixed on the outer wall of the branch pipe, and the axis of each nozzle is vertical to that of the branch pipe;
the number of the nozzles in the nozzle group on the upper layer is the same as that of the nozzles in the nozzle group on the lower layer, and the orthographic projections of the nozzles in the nozzle group on the upper layer and the orthographic projections of the nozzles in the nozzle group on the lower layer are arranged in a staggered manner.
Furthermore, the number of the nozzles in the nozzle group at the upper layer and the number of the nozzles in the nozzle group at the lower layer are eight.
Further, the total cross-sectional area of the nozzle is equal to the cross-sectional area of the main pipe.
Furthermore, the total sectional area of the main pipe, the branch pipes and the nozzles is equal to the sectional area of the main coal pipe.
Further, the welding of the lateral wall of being responsible for has two at least anchor nails, the lateral wall of being responsible for is provided with the pouring material that carries out the parcel to anchor nail and being responsible for.
Further, the anchoring nail is of a V-shaped structure.
Furthermore, a hole for embedding the branch pipe is formed in the main pipe.
The utility model has the advantages that:
through being responsible for, the branch pipe, cooperation between the nozzle, the buggy is through being responsible for and being in charge of and the outside blowout of nozzle is finally followed to the branch pipe, because the nozzle is at least two, and the nozzle is fixed in the even circumference of branch pipe outer wall, make the change that the coal injection mode takes place, the buggy is more dispersed, enable wind, the coal, the more abundant mixture of material, the combustion rate of buggy is faster, the burning is more complete, reduce CO's production simultaneously, be favorable to the denitration, reduce burning type NOX's formation, compare before directly spout or spout soon, more do benefit to energy saving and consumption reduction, the denitration, greatly reduced cement manufacture cost.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Description of the drawings:
in order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only three of the embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a front view of the present application.
Fig. 2 is a top view of the present application.
Fig. 3 is a schematic structural diagram of the castable in the present application.
In the figure, 1-main pipe, 2-branch pipe, 3-nozzle, 4-anchoring nail and 5-casting material.
The specific implementation mode is as follows:
embodiments of the present invention will be described in detail below with reference to the accompanying drawings. While certain embodiments of the present invention have been illustrated in the accompanying drawings, it is to be understood that the invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein, but rather are provided for a more thorough and complete understanding of the present invention. It should be understood that the drawings and examples are for illustrative purposes only and are not intended to limit the scope of the present disclosure.
It should be understood that the various steps recited in method embodiments of the present invention may be performed in a different order, and/or performed in parallel. Moreover, method embodiments may include additional steps and/or omit performing the illustrated steps. The scope of the present invention is not limited in this respect.
The names of messages or information exchanged between devices in embodiments of the present invention are for illustrative purposes only, and are not intended to limit the scope of such messages or information.
Example one
As shown in fig. 1-2, a novel coal injection pipe special for a dry-process cement kiln tail comprises a main pipe 1, branch pipes 2 and nozzles 3, wherein one ends of the main pipe 1 and the branch pipes 2 are opened to form an open end, the other ends of the main pipe 1 and the branch pipes 2 are closed to form a closed end (the closed end is welded by a blind plate, the branch pipes 2 are circular steel pipes), the open end of the main pipe 1 is provided with a flange communicated with the main coal pipe through a hose, the closed end of the main pipe 1 is communicated (welded) with the open end of the branch pipes 2, the axis of the branch pipes 2 is perpendicular to the axis of the main pipe 1, and an upper layer and a lower layer of nozzles 3 are axially arranged on the branch pipes 2; the nozzle 3 group comprises at least two nozzles 3, the at least two nozzles 3 are uniformly and circumferentially fixed on the outer wall of the branch pipe 2, and the axis of each nozzle 3 is vertical to the axis of the branch pipe 2; therefore, the pulverized coal entering the branch pipe 2 from the main pipe 1 can be sprayed out from the nozzle 3 groups, the spraying area is increased due to the fact that the nozzle 3 groups are two layers, the sprayed pulverized coal is uniformly mixed with air, and the spraying uniformity is guaranteed.
In this embodiment, the number of the nozzles 3 in the upper nozzle 3 group is the same as the number of the nozzles 3 in the lower nozzle 3 group (preferably eight nozzles 3, the nozzles 3 are circular steel tubes), and the orthographic projections of the nozzles 3 in the upper nozzle 3 group and the orthographic projections of the nozzles 3 in the lower nozzle 3 group are staggered; the even setting of nozzle 3 realizes that the buggy is to being in charge of 2 even spouts all around, and simultaneously, nozzle 3 in the 3 groups of upper nozzle and nozzle 3 in the 3 groups of lower floor's nozzle stagger distribution from top to bottom further increase buggy spun homogeneity, be favorable to with the intensive mixing of wind.
In the present embodiment, the total cross-sectional area of the nozzles 3 is equal to the cross-sectional area of the main pipe 1; the total sectional area of the main pipe 1, the branch pipes 2 and the nozzles 3 is equal to the sectional area of the main coal pipe. On the premise of not increasing the kiln tail coal feeding fan, the original air pressure is kept unchanged, and the stability of the system is increased.
In the embodiment, the main pipe 1, the branch pipes 2, the nozzles 3, the anchoring nails 4, the casting material 5 and the flange are made of wear-resistant and high-temperature-resistant materials, so that the safe operation at high temperature of 1000-1200 ℃ for a long time is met.
During the use, be responsible for 1 and link to each other with former main coal feeding pipe way (main coal pipe) through flange and hose, adopt the mode of flexible coupling, adjustable length that stretches into in the stove, convenient and fast, buggy in the main coal pipe gets into and is responsible for 1 and branch pipe 2 under the drive of wind again, then from nozzle 3 blowout.
Example two
As shown in fig. 3, the present embodiment is obtained by describing technical features of the main pipe 1 and the branch pipes 2 in detail on the basis of the first embodiment, and the remaining technical features are the same as the first embodiment, and the description thereof is omitted here for the same parts, where the difference between the present embodiment and the first embodiment is that: the main pipe 1 is provided with a hole for the branch pipe 2 to be embedded in.
In the embodiment, due to the existence of the hole, the branch pipe 2 can extend into the main pipe 1 through the hole and then be welded, so that the insert welding method is realized, and the connection is firm and reliable.
EXAMPLE III
As shown in fig. 3, the present embodiment is obtained by adding technical features such as an anchoring nail 4 and a castable 5 on the basis of the second embodiment, and the remaining technical features are the same as the second embodiment, and the description thereof is omitted here for the same parts, wherein the differences between the second embodiment and the present embodiment are: be responsible for 1 lateral wall welding of 1 has two at least anchor nails 4 that are V style of calligraphy structure, is responsible for 1 lateral wall and is provided with the castable 5 that wraps up anchor nail 4 and person in charge 1.
In this embodiment, be responsible for 1 for adopting the square that the steel sheet welded into, make things convenient for the formwork, pouring thickness is 80-100 mm's pouring material 5, simultaneously, is responsible for 1 lateral wall welding has two at least anchor nails 4 that are V style of calligraphy structure, increases pouring material 5 and is responsible for 1 joint strength, and pouring material 5 wraps up anchor nail 4 and is responsible for 1 to satisfy long-time indeformable in high temperature environment, increase of service life.
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art 5 that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (7)
1. The utility model provides a special coal injection pipe of novel dry process cement kiln tail, includes the person in charge, is in charge, nozzle, characterized by: one end of the main pipe and one end of the branch pipe are opened to form an open end, the other end of the main pipe and the other end of the branch pipe are closed to form a closed end, the open end of the main pipe is provided with a flange communicated with the main coal pipe through a hose, the closed end of the main pipe is communicated with the open end of the branch pipe, the axis of the branch pipe is vertical to the axis of the main pipe, and the branch pipe is axially provided with an upper layer of nozzle group and a lower layer of nozzle group;
the nozzle group comprises at least two nozzles, the at least two nozzles are uniformly and circumferentially fixed on the outer wall of the branch pipe, and the axis of each nozzle is vertical to that of the branch pipe;
the number of the nozzles in the nozzle group on the upper layer is the same as that of the nozzles in the nozzle group on the lower layer, and the orthographic projections of the nozzles in the nozzle group on the upper layer and the orthographic projections of the nozzles in the nozzle group on the lower layer are arranged in a staggered manner.
2. The novel coal injection pipe special for the kiln tail of the dry-process cement kiln as claimed in claim 1, which is characterized in that: the number of the nozzles in the nozzle group at the upper layer and the number of the nozzles in the nozzle group at the lower layer are eight.
3. The novel coal injection pipe special for the dry-method cement kiln tail as claimed in claim 2, is characterized in that: the total cross-sectional area of the nozzle is equal to the cross-sectional area of the main pipe.
4. The novel coal injection pipe special for the dry-method cement kiln tail as claimed in claim 3, is characterized in that: the total sectional area of the main pipe, the branch pipes and the nozzles is equal to the sectional area of the main coal pipe.
5. The novel coal injection pipe special for the kiln tail of the dry-process cement kiln as claimed in claim 4, which is characterized in that: be responsible for the lateral wall welding and have two at least anchor nails, be responsible for the lateral wall and be provided with the pouring material that wraps up anchor nail and person in charge.
6. The novel coal injection pipe special for the dry-method cement kiln tail as claimed in claim 5, is characterized in that: the anchoring nail is of a V-shaped structure.
7. The novel coal injection pipe special for the kiln tail of the dry-process cement kiln as claimed in claim 6, which is characterized in that: the main pipe is provided with a hole for the branch pipe to be embedded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485241.2U CN218033223U (en) | 2022-09-20 | 2022-09-20 | Novel special coal injection pipe for kiln tail of dry-method cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222485241.2U CN218033223U (en) | 2022-09-20 | 2022-09-20 | Novel special coal injection pipe for kiln tail of dry-method cement kiln |
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| Publication Number | Publication Date |
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| CN218033223U true CN218033223U (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202222485241.2U Active CN218033223U (en) | 2022-09-20 | 2022-09-20 | Novel special coal injection pipe for kiln tail of dry-method cement kiln |
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|---|---|
| CN (1) | CN218033223U (en) |
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- 2022-09-20 CN CN202222485241.2U patent/CN218033223U/en active Active
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