CN113069909B - Cement kiln denitrification facility - Google Patents
Cement kiln denitrification facility Download PDFInfo
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- CN113069909B CN113069909B CN202110238154.4A CN202110238154A CN113069909B CN 113069909 B CN113069909 B CN 113069909B CN 202110238154 A CN202110238154 A CN 202110238154A CN 113069909 B CN113069909 B CN 113069909B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
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Abstract
The invention provides a cement kiln denitration device which comprises an air compressor and a Venturi ejector, wherein an air outlet of the air compressor is communicated with an air inlet of the Venturi ejector through an air pressure stabilizing device, and the technical problem of improving the stability of the blowing-in amount of urea is solved.
Description
Technical Field
The invention relates to a cement kiln denitration device.
Background
The production process of cement kilns is accompanied by the production of large quantities of nitrogen oxides, which are one of the major atmospheric pollutants.
The invention discloses a cement rotary kiln dry denitration process and equipment thereof, and discloses an invention patent with an authorization publication number of CN104084035B and an authorization publication number of 2016.01.13, which comprises a five-stage cyclone preheater, wherein a fifth-stage preheater of the five-stage cyclone preheater is connected with a decomposition kiln through a parallel flue, the bottom of the fifth-stage preheater is connected with a rotary kiln, a blowing pipe is inserted into a section of a kiln upper opening from a cement kiln tail parallel flue to the lower part of the fifth-stage preheater of the five-stage cyclone preheater, the blowing pipe is connected with a urea blowing device, the urea blowing device comprises a urea lifting assembly, a urea storage weighing assembly and an air flow blowing assembly, the urea lifting assembly is a bucket elevator with a hopper at the bottom, the urea storage weighing assembly comprises a bin and a spiral conveyor, the top of the bucket elevator is connected to the top of the bin through a conveying pipeline, a loosening mining machine penetrates through the bin, the bottom opening is connected with the spiral conveyor, a discharge port of the spiral conveyor is connected with the air flow blowing assembly and blows urea to the fifth-stage preheater through the air flow blowing pipe, raw materials are conveyed into a raw material bin by the lifting machine, the raw material bin, the air pressure air inlet of the air blowing ejector is connected with an air inlet of the venturi compressor, and the air outlet of the venturi compressor, and the air inlet of the venturi compressor are connected with the air inlet of the air compressor, and the venturi compressor. However, the air compressor is disturbed by external environmental factors to cause unstable blowing air pressure, so that the urea blowing amount is unstable, and the denitration effect is reduced.
Disclosure of Invention
The invention provides a cement kiln denitration device, which aims to solve the technical problem of improving the stability of the blowing-in amount of urea.
The technical scheme of the invention is realized as follows: 1. the utility model provides a cement kiln denitrification facility, includes air compressor, atmospheric pressure stabilising arrangement and venturi sprayer, its characterized in that, the air compressor gas outlet passes through the air inlet intercommunication of atmospheric pressure stabilising arrangement and venturi sprayer, and wherein atmospheric pressure stabilising arrangement includes the tube-shape casing with air compressor gas outlet intercommunication, with the self-adaptation regulation head of the air inlet intercommunication of venturi sprayer, the self-adaptation regulation head is equipped with first helicla flute, the second helicla flute that revolve to opposite, first helicla flute, second helicla flute intercommunication, shells inner wall is equipped with first helicla flute, second helicla flute complex rotation arch, it is equipped with the rotation stopping pole to rotate along its axis direction in the casing, and the rotation stopping pole cover is equipped with the torsional spring, torsional spring one end and casing fixed connection, the other end and rotation stopping pole fixed connection, self-adaptation regulation head are equipped with the rotation stopping pole slip, rotation stopping complex rotation stopping hole, and the relative casing of self-adaptation regulation head ability slides or rotates, the self-adaptation regulation head is equipped with the air vent so that air compressor, venturi sprayer communicate.
Further, the casing rotates along its axis direction and is equipped with only the swing arm, the self-adaptation regulation head be equipped with only the swing arm slide, only revolve the complex only the hole of revolving, only the swing arm cover is equipped with the torsional spring, torsional spring one end and casing fixed connection, the other end and only swing arm fixed connection.
Further, the self-adaptation adjusting head rotates and is equipped with the adapter sleeve, the tip that the self-adaptation adjusting head kept away from the casing is equipped with and stops the arch, the adapter sleeve is equipped with and stops protruding normal running fit's draw-in groove.
Furthermore, the self-adaptive adjusting head is provided with a sealing ring for sealing a gap between the self-adaptive adjusting head and the shell.
Further, the casing is provided with a first connecting thread connected with the air compressor, and the connecting sleeve is provided with a second connecting thread connected with the venturi ejector.
Further, the rotation stopping rod is a quadrangular prism.
By adopting the technical scheme, the invention has the beneficial effects that: according to the cement kiln denitration device, the air pressure stabilizing device is arranged between the air compressor and the Venturi ejector, so that the air pressure at the air inlet of the Venturi ejector tends to be stable in unit time, the stability of the urea blowing-in amount is improved, and the denitration effect is further improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some 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 schematic structural view of an air pressure stabilizing device according to the present invention;
FIG. 2 is a schematic view of another angle of the air pressure stabilizer of the present invention;
FIG. 3 is a schematic structural view of the housing of the present invention;
FIG. 4 is a schematic diagram of an adaptive control head according to the present invention;
FIG. 5 is a cross-sectional view of the mechanism of FIG. 4;
fig. 6 is an enlarged view at I of fig. 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment 1 of a cement kiln denitration device comprises an air compressor and a Venturi ejector, wherein an air outlet of the air compressor is communicated with an air inlet of the Venturi ejector through an air pressure stabilizing device, the air pressure stabilizing device comprises a cylindrical shell 1 communicated with an air outlet of the air compressor and an adaptive adjusting head 2 communicated with the air inlet of the Venturi ejector, the adaptive adjusting head is provided with a first spiral groove 3 and a second spiral groove 4 which are opposite in rotation direction, the first spiral groove and the second spiral groove are communicated, a rotating protrusion 5 matched with the first spiral groove and the second spiral groove is arranged on the inner wall of the shell, and the adaptive adjusting head is provided with an air vent 6 to enable the air compressor and the Venturi ejector to be communicated.
An embodiment 2 of a cement kiln denitration device comprises an air compressor and a Venturi ejector, wherein an air outlet of the air compressor is communicated with an air inlet of the Venturi ejector through an air pressure stabilizing device, the air pressure stabilizing device comprises a cylindrical shell 1 communicated with an air outlet of the air compressor and an adaptive adjusting head 2 communicated with the air inlet of the Venturi ejector, the adaptive adjusting head is provided with a first spiral groove 3 and a second spiral groove 4 which are opposite in rotation direction, the first spiral groove and the second spiral groove are communicated, the inner wall of the shell is provided with a rotating bulge 5 matched with the first spiral groove and the second spiral groove, the adaptive adjusting head is provided with an air vent 6 to enable the air compressor and the Venturi ejector to be communicated, the shell is provided with a rotation stopping rod 7 in a rotation direction, the adaptive adjusting head is provided with a rotation stopping hole 8 matched with the rotation stopping rod in a sliding mode and the rotation stopping mode, the rotation stopping rod is sleeved with a torsion spring 9, one end of the torsion spring is fixedly connected with the shell, the other end of the torsion spring is fixedly connected with the rotation stopping rod, the adaptive adjusting head is provided with a connecting sleeve 10, the end, which is far away from the shell, and the adaptive adjusting head is provided with a clamping groove in a rotation stopping bulge 11.
An embodiment 3 of a cement kiln denitration device comprises an air compressor and a Venturi ejector, wherein an air outlet of the air compressor is communicated with an air inlet of the Venturi ejector through an air pressure stabilizing device, the air pressure stabilizing device comprises a cylindrical shell 1 communicated with an air outlet of the air compressor and an adaptive adjusting head 2 communicated with the air inlet of the Venturi ejector, the adaptive adjusting head is provided with a first spiral groove 3 and a second spiral groove 4 which are opposite in rotation direction, the first spiral groove and the second spiral groove are communicated, the inner wall of the shell is provided with a rotary bulge 5 matched with the first spiral groove and the second spiral groove, the adaptive adjusting head is provided with an air vent 6 to enable the air compressor and the Venturi ejector to be communicated, the casing rotates along its axis direction and is equipped with only the swing arm 7, the self-adaptation regulation head be equipped with only the swing arm slip, only the swing complex only hole 8 that revolves, only the swing arm cover is equipped with torsional spring 9, torsional spring one end and casing fixed connection, the other end and only swing arm fixed connection, the self-adaptation regulation head rotates and is equipped with adapter sleeve 10, the tip that the casing was kept away from to the self-adaptation regulation head is equipped with the card and ends arch 11, the adapter sleeve is equipped with and ends protruding normal running fit's draw-in groove, the self-adaptation regulation head is equipped with the sealing washer (not shown in the figure) that is used for sealed self-adaptation regulation head, clearance between the casing, the casing is equipped with the first connecting thread 12 of being connected with air compressor, the adapter sleeve is equipped with the second connecting thread 13 of being connected with the venturi sprayer, only the swing arm is the quadrangular.
When the self-adaptive adjusting head is used, the shell is installed on an air compressor, then the self-adaptive adjusting head is pressed towards the direction close to the shell along the central axis of the shell, the rotary protrusion 5 slides relatively in the first spiral groove 3 so that the self-adaptive adjusting head moves towards the shell and simultaneously rotates relative to the shell, at the moment, the force of the torsion spring is stored, and after the rotary protrusion 5 enters the second spiral groove 4, the torsion spring releases the torque to enable the self-adaptive adjusting head to move towards the shell, so that the shell and the self-adaptive adjusting head are locked. When the air pressure in the shell fluctuates, the air pressure pushes the self-adaptive adjusting head to slide relative to the shell, the volume of a gas chamber contained in the shell is changed, and the influence of the air pressure fluctuation on the air transmission pressure of the self-adaptive adjusting head is reduced.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is intended to cover any modifications, equivalents, improvements, etc. within the spirit and scope of the present invention.
Claims (5)
1. The utility model provides a cement kiln denitrification facility, includes air compressor, atmospheric pressure stabilising arrangement and venturi sprayer, its characterized in that, the air compressor gas outlet passes through the air inlet intercommunication of atmospheric pressure stabilising arrangement and venturi sprayer, and wherein atmospheric pressure stabilising arrangement includes the tube-shape casing with air compressor gas outlet intercommunication, with the self-adaptation regulation head of the air inlet intercommunication of venturi sprayer, the self-adaptation regulation head is equipped with first helicla flute, the second helicla flute that revolve to opposite, first helicla flute, second helicla flute intercommunication, shells inner wall is equipped with first helicla flute, second helicla flute complex rotation arch, it is equipped with the rotation stopping pole to rotate along its axis direction in the casing, and the rotation stopping pole cover is equipped with the torsional spring, torsional spring one end and casing fixed connection, the other end and rotation stopping pole fixed connection, self-adaptation regulation head are equipped with the rotation stopping pole slip, rotation stopping complex rotation stopping hole, and the relative casing of self-adaptation regulation head ability slides or rotates, the self-adaptation regulation head is equipped with the air vent so that air compressor, venturi sprayer communicate.
2. The cement kiln denitration device as claimed in claim 1, wherein the adaptive adjustment head is rotatably provided with a connecting sleeve, the end part of the adaptive adjustment head far away from the casing is provided with a clamping protrusion, and the connecting sleeve is provided with a clamping groove which is rotatably matched with the clamping protrusion.
3. The cement kiln denitration device according to claim 1, wherein the adaptive adjustment head is provided with a sealing ring for sealing a gap between the adaptive adjustment head and the casing.
4. The cement kiln denitration device according to claim 2, wherein the housing is provided with a first connection thread connected with the air compressor, and the connection sleeve is provided with a second connection thread connected with the venturi ejector.
5. The cement kiln denitration device according to claim 1, wherein the rotation stopping rod is a quadrangular prism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238154.4A CN113069909B (en) | 2021-03-03 | 2021-03-03 | Cement kiln denitrification facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110238154.4A CN113069909B (en) | 2021-03-03 | 2021-03-03 | Cement kiln denitrification facility |
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| Publication Number | Publication Date |
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| CN113069909A CN113069909A (en) | 2021-07-06 |
| CN113069909B true CN113069909B (en) | 2023-03-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110238154.4A Active CN113069909B (en) | 2021-03-03 | 2021-03-03 | Cement kiln denitrification facility |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406130Y (en) * | 2000-01-07 | 2000-11-15 | 物理农业机械股份有限公司 | High-pressure air quantitative pressure stabilizing apparatus |
| CN104084035A (en) * | 2014-07-30 | 2014-10-08 | 淄博联创环保科技有限公司 | Dry-process denitration process of rotary cement kiln and equipment |
| CN203990149U (en) * | 2014-08-01 | 2014-12-10 | 哈尔滨空调股份有限公司 | Weld fumes filter pulse jetting deashing mechanism |
| US20150041295A1 (en) * | 2013-08-08 | 2015-02-12 | Satori S-Tech Co., Ltd. | Trigger switch |
| CN211315124U (en) * | 2019-10-22 | 2020-08-21 | 黄依华 | Gas pressure-stabilizing step valve |
| CN111878607A (en) * | 2019-09-05 | 2020-11-03 | 杨锋 | Pressure adjusting method of pressure relief valve |
-
2021
- 2021-03-03 CN CN202110238154.4A patent/CN113069909B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2406130Y (en) * | 2000-01-07 | 2000-11-15 | 物理农业机械股份有限公司 | High-pressure air quantitative pressure stabilizing apparatus |
| US20150041295A1 (en) * | 2013-08-08 | 2015-02-12 | Satori S-Tech Co., Ltd. | Trigger switch |
| CN104084035A (en) * | 2014-07-30 | 2014-10-08 | 淄博联创环保科技有限公司 | Dry-process denitration process of rotary cement kiln and equipment |
| CN203990149U (en) * | 2014-08-01 | 2014-12-10 | 哈尔滨空调股份有限公司 | Weld fumes filter pulse jetting deashing mechanism |
| CN111878607A (en) * | 2019-09-05 | 2020-11-03 | 杨锋 | Pressure adjusting method of pressure relief valve |
| CN211315124U (en) * | 2019-10-22 | 2020-08-21 | 黄依华 | Gas pressure-stabilizing step valve |
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| CN113069909A (en) | 2021-07-06 |
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