CN113069909A - Cement kiln denitrification facility - Google Patents
Cement kiln denitrification facility Download PDFInfo
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- CN113069909A CN113069909A CN202110238154.4A CN202110238154A CN113069909A CN 113069909 A CN113069909 A CN 113069909A CN 202110238154 A CN202110238154 A CN 202110238154A CN 113069909 A CN113069909 A CN 113069909A
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- cement kiln
- air
- spiral groove
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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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- Environmental & Geological Engineering (AREA)
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- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Jet Pumps And Other Pumps (AREA)
- Treating Waste Gases (AREA)
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 main atmospheric pollutants.
The prior art discloses a dry denitration process of a cement rotary kiln and equipment thereof, which is named as 'dry denitration process of the cement rotary kiln and equipment thereof', the publication number is CN104084035B, the publication number is 2016.01.13, the invention comprises a five-stage cyclone preheater, the 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 the rotary kiln, a blowing pipe is inserted into a section of the kiln from the kiln tail of the cement kiln rotary kiln 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 component, a urea storage weighing component and an airflow blowing component, the urea lifting component is a bucket elevator with a hopper at the bottom, the urea storage weighing component comprises a bin and a spiral conveyor, the top of the bucket elevator is connected to the top of, feed bin bottom opening connects down screw conveyer, and screw conveyer's discharge gate is connected the air current and is blown the subassembly and blow to fifth level pre-heater to urea through the blowing pipe, and raw materials warehousing is carried with the lifting machine, gets into raw materials storehouse, and denitration agent is sent with pneumatic conveying in the kiln, adopts air compressor for wind power, utilizes the wind pressure to send into the wind channel with denitration agent, the air current blow the subassembly and include air compressor and venturi sprayer, air compressor's gas outlet passes through the air inlet of compressor pipeline connection venturi sprayer, and screw conveyer's discharge gate is connected to venturi sprayer's feed inlet, venturi sprayer blow exit linkage blowing pipe. 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: the utility model provides a cement kiln denitrification facility, includes air compressor, venturi sprayer, the air compressor gas outlet passes through the air pressure stabilising arrangement and the air inlet intercommunication of venturi sprayer.
Further, the atmospheric pressure stabilising arrangement includes the tube-shape casing with air compressor gas outlet intercommunication, with the self-adaptation regulation head of venturi sprayer's air inlet intercommunication, the self-adaptation regulation head is equipped with first helicla flute, the second helicla flute that revolves to opposite, first helicla flute, second helicla flute intercommunication, shells inner wall is equipped with first helicla flute, second helicla flute complex rotation arch, be equipped with the torsion member in the casing so that the self-adaptation regulation head rotates, the self-adaptation regulation head is equipped with the air vent so that air compressor, venturi sprayer intercommunication.
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 stabilizing device 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, the inner wall of the shell is provided with a rotating bulge 5 matched with the first spiral groove and the second spiral groove, a torsion piece is arranged in the shell to enable the adaptive adjusting head to rotate, 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 rotary bulge 5 matched with the first spiral groove and the second spiral groove, a torsion piece is arranged in the shell to enable the adaptive adjusting head to rotate, 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 rotating mode along the axial direction of the shell, the adaptive adjusting head is provided with a, Stop the hole 8 that revolves that complex ends, end the rotation rod cover and be equipped with torsional spring 9, torsional spring one end and casing fixed connection, the other end and end rotation rod fixed connection, the rotation of self-adaptation regulation head is equipped with adapter sleeve 10, and the tip that the casing was kept away from to the self-adaptation regulation head is equipped with and stops protruding 11, and the adapter sleeve is equipped with and stops protruding normal running fit's draw-in groove.
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, a torsion piece is arranged in the shell to enable the adaptive adjusting head to rotate, 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 rotating mode along the axial direction of the shell, the adaptive adjusting head is provided with a, Stop the hole 8 of revolving complex stopping, the stopping rod cover is equipped with torsional spring 9, torsional spring one end and casing fixed connection, the other end and stopping rod fixed connection, the first rotation of self-adaptation regulation is equipped with the adapter sleeve 10, the tip that the casing was kept away from to the self-adaptation regulation head is equipped with and stops protruding 11, the adapter sleeve is equipped with and stops protruding normal running fit's draw-in groove, the self-adaptation regulation head is equipped with and is used for sealed self-adaptation regulation head, the sealing washer (not shown in the figure) in clearance between the casing, the casing is equipped with the first connecting thread 12 of being connected with air compressor, it is equipped with the second connecting thread 13 of being connected with the venturi sprayer to connect the.
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 is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides a cement kiln denitrification facility, includes air compressor, venturi sprayer, its characterized in that, the air compressor gas outlet passes through the air pressure stabilising arrangement and the air inlet intercommunication of venturi sprayer.
2. The cement kiln denitration device according to claim 1, wherein the air pressure stabilizing device comprises a cylindrical shell communicated with an air outlet of the air compressor, and an adaptive adjusting head communicated with an air inlet of the venturi ejector, the adaptive adjusting head is provided with a first spiral groove and a second spiral groove which are opposite in rotation direction, the first spiral groove and the second spiral groove are communicated, a rotating bulge matched with the first spiral groove and the second spiral groove is arranged on the inner wall of the shell, a torsion piece is arranged in the shell to enable the adaptive adjusting head to rotate, and the adaptive adjusting head is provided with an air vent to enable the air compressor and the venturi ejector to be communicated.
3. The cement kiln denitration device according to claim 2, wherein the housing is rotatably provided with a rotation stopping rod along an axial direction thereof, the adaptive adjustment head is provided with a rotation stopping hole which is matched with the rotation stopping rod in a sliding and rotation stopping manner, the rotation stopping rod is sleeved with a torsion spring, one end of the torsion spring is fixedly connected with the housing, and the other end of the torsion spring is fixedly connected with the rotation stopping rod.
4. The cement kiln denitration device according to claim 3, wherein the adaptive adjustment head is rotatably provided with a connecting sleeve, the end part of the adaptive adjustment head far away from the shell is provided with a clamping protrusion, and the connecting sleeve is provided with a clamping groove which is rotatably matched with the clamping protrusion.
5. The cement kiln denitration device according to claim 4, wherein the adaptive adjustment head is provided with a sealing ring for sealing a gap between the adaptive adjustment head and the casing.
6. The cement kiln denitration device according to claim 5, 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.
7. The cement kiln denitration device according to claim 6, 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 true CN113069909A (en) | 2021-07-06 |
| CN113069909B CN113069909B (en) | 2023-03-21 |
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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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| CN113069909B (en) | 2023-03-21 |
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