CN112915668A - Cement kiln exhaust gas desulfurization device - Google Patents

Cement kiln exhaust gas desulfurization device Download PDF

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Publication number
CN112915668A
CN112915668A CN202110368233.7A CN202110368233A CN112915668A CN 112915668 A CN112915668 A CN 112915668A CN 202110368233 A CN202110368233 A CN 202110368233A CN 112915668 A CN112915668 A CN 112915668A
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CN
China
Prior art keywords
cavity
collecting tank
motor
shell
gas collecting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110368233.7A
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Chinese (zh)
Inventor
刘广铎
王志刚
韩韶辉
时耀辉
武振平
刘哲
韩永鹏
韩屹勍
程飞
只艳芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hebei Jinyu Dingxin Cement Co ltd
Original Assignee
Hebei Jinyu Dingxin Cement Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hebei Jinyu Dingxin Cement Co ltd filed Critical Hebei Jinyu Dingxin Cement Co ltd
Priority to CN202110368233.7A priority Critical patent/CN112915668A/en
Publication of CN112915668A publication Critical patent/CN112915668A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/42—Auxiliary equipment or operation thereof
    • B01D46/48—Removing dust other than cleaning filters, e.g. by using collecting trays
    • 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
    • B01D53/48—Sulfur compounds
    • B01D53/50—Sulfur oxides
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Environmental & Geological Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Treating Waste Gases (AREA)

Abstract

The invention discloses a cement kiln waste gas desulfurization device which comprises a gas collecting tank, wherein the gas collecting tank is connected with a shell through a gas pipe, a stirring device is arranged in a second cavity, a plurality of sprayers are arranged at the bottom end of the second cavity, a water pipe is arranged at the top end of the shell and is communicated with the second cavity, a storage box is arranged at the top end of the left side of the shell and is communicated with the second cavity, a slurry discharge pipe is arranged at the bottom end of the right side of the shell and is communicated with a first cavity, a PH sensor is arranged in the first cavity, a first motor is arranged in the storage box, an impeller is arranged at the output end of the first motor, a second motor is arranged on the inner side of a fixing frame, and an ash cleaning arm, an ash guide plate and an ash cleaning rod are sequentially arranged at the output end of the second motor from bottom. In the invention, the pipeline blockage is avoided, the proper concentration of the calcium hydroxide solution can be kept, and the method is worthy of vigorous popularization.

Description

Cement kiln exhaust gas desulfurization device
Technical Field
The invention relates to the field of desulfurization equipment, in particular to a cement kiln waste gas desulfurization device.
Background
The cement kiln is a device for calcining cement clinker, and the calcined cement is generally calcined by using coal, and sulfides are generated when the coal is combusted, and the sulfides pollute the environment and need to be subjected to desulfurization treatment.
Dust is generated in the coal combustion process, so that a pipeline is blocked to block, the working efficiency of equipment is affected, in addition, the desulfurization generally adopts a calcium hydroxide solution to react with sulfide, the concentration of the calcium hydroxide solution is reduced in the reaction process, and the desulfurization operation efficiency is reduced.
Disclosure of Invention
The invention aims to solve the defects in the prior art and provides a cement kiln waste gas desulfurization device.
In order to achieve the purpose, the invention adopts the following technical scheme: a cement kiln waste gas desulfurization device comprises a gas collecting tank, wherein a gas collecting hood is arranged at the bottom end of the gas collecting tank, a filter screen is arranged in the middle of the inside of the gas collecting tank, a fixing frame is arranged below the filter screen and fixedly connected to the inside of the gas collecting tank, the gas collecting tank is connected with a shell through a gas pipe, a first cavity and a second cavity are arranged in the shell, a stirring device is arranged in the second cavity, a plurality of sprayers are arranged at the bottom end of the second cavity, a water pipe is arranged at the top end of the shell and communicated with the second cavity, a storage box is arranged at the top end of the left side of the shell and communicated with the second cavity, a slurry discharge pipe is arranged at the bottom end of the right side of the shell and communicated with the first cavity, a PH sensor is arranged in the first cavity, a first motor is arranged in the storage box, and an, storage box bottom is provided with electronic scale and electronic scale fixed connection in the casing left side, the mount inboard is provided with the second motor, supreme deashing arm, the ash deflector and the contact of deashing pole and filter screen bottom of having set gradually are followed to second motor output, deashing arm bottom and mount contact.
As a further description of the above technical solution:
and the first motor is electrically connected with the electronic scale and the PH sensor.
As a further description of the above technical solution:
the ash guide plate is conical.
As a further description of the above technical solution:
the fixing frame and the inner wall of the gas collecting tank form a dust collecting groove, and the right end of the gas collecting tank is provided with a dust discharging opening.
As a further description of the above technical solution:
and a valve is arranged on the right side of the air pipe.
As a further description of the above technical solution:
the water pipe is provided with a water pump.
As a further description of the above technical solution:
and a slurry pump is arranged on the slurry discharge pipe.
The invention has the following beneficial effects:
1. according to the dust collecting device, the filter screen is arranged to block dust below the gas collecting tank, the second motor rotates to drive the dust cleaning rod and the dust cleaning arm to clean the dust and drop the dust into the dust collecting groove through the dust guide plate, the dust is sent out of the gas collecting tank from the dust discharging port through the dust cleaning arm, the gas collecting tank is kept clean, and a pipeline is prevented from being blocked.
2. According to the invention, the PH sensor detects the PH value in the first cavity, when the PH value is lower than a certain value, the speed of the first motor is increased, the feeding of calcium hydroxide powder into the second cavity is accelerated, the PH value in the second cavity is increased, and then the calcium hydroxide powder is fed into the first cavity through the sprayer, so that the concentration of the calcium hydroxide solution in the first cavity is ensured to be in a proper range, and the method is worthy of great popularization.
Drawings
FIG. 1 is a front view of a cement kiln exhaust gas desulfurization apparatus according to the present invention;
FIG. 2 is a schematic view of a storage box of the cement kiln exhaust gas desulfurization device provided by the invention;
FIG. 3 is a schematic view of an ash guide plate of a cement kiln exhaust gas desulfurization device according to the present invention.
Illustration of the drawings:
1. a gas collection tank; 2. filtering with a screen; 3. a fixed mount; 4. a gas-collecting hood; 5. an air tube; 6. a housing; 7. a first chamber; 8. a second chamber; 9. a stirring device; 10. a water pipe; 11. a sprayer; 12. a storage box; 13. a slurry discharge pipe; 14. a first motor; 15. an impeller; 16. an electronic scale; 17. a pH sensor; 18. a second motor; 19. a dust removal arm; 20. a dust guide plate; 21. a dust removal rod.
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; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, one embodiment of the present invention is provided: a cement kiln waste gas desulfurization device comprises a gas collecting tank 1, a gas collecting hood 4 is arranged at the bottom end of the gas collecting tank 1, a filter screen 2 is arranged in the middle of the inside of the gas collecting tank 1, a fixing frame 3 is arranged below the filter screen 2 and the fixing frame 3 is fixedly connected inside the gas collecting tank 1, the gas collecting tank 1 is connected with a shell 6 through a gas pipe 5, a first cavity 7 and a second cavity 8 are arranged inside the shell 6, a stirring device 9 is arranged inside the second cavity 8, a plurality of sprayers 11 are arranged at the bottom end of the second cavity 8, a water pipe 10 is arranged at the top end of the shell 6 and is communicated with the second cavity 8, a storage box 12 is arranged at the top end of the left side of the shell 6 and is communicated with the second cavity 8, a slurry discharge pipe 13 is arranged at the bottom end of the right side of the shell 6 and is communicated with the first cavity 7, a PH, the output end of a first motor 14 is provided with an impeller 15, the bottom end of a storage box 12 is provided with an electronic scale 16, the electronic scale 16 is fixedly connected to the left side of a shell 6, the inner side of a fixed frame 3 is provided with a second motor 18, the output end of the second motor 18 is sequentially provided with an ash removal arm 19, an ash guide plate 20 and an ash removal rod 21 from bottom to top, the ash removal rod 21 is contacted with the bottom end of a filter screen 2, and the bottom end of the ash removal arm 19 is contacted with the fixed frame 3. in the structure, waste gas enters a gas collection tank 1 through a gas collection hood 4, dust is intercepted by the filter screen 2 and is cleaned at the lower part of the gas collection tank 1 under the action of the second motor 18, the ash removal arm 19 and the ash removal rod 21, part of the dust directly falls into the top end of the fixed frame 3, part of the dust falls into the top end of the fixed, clean water is fed into the water pipe 10 and the second chamber 8, the first motor 14 drives the impeller 15 to feed calcium hydroxide powder into the second chamber 8, under the action of the stirring device 9, the calcium hydroxide is accelerated to be dissolved into the clear water to generate a calcium hydroxide solution, the calcium hydroxide solution is sent into the first chamber 7 by the sprayer 11, in the process of feeding the calcium hydroxide solution into the first chamber 7, the atomized calcium hydroxide solution contacts with the rising exhaust gas to completely react the sulfur oxides which are not completely reacted, when the PH sensor 17 detects that the PH value of the solution in the first chamber 7 is lower than a certain value, the first motor 14 accelerates to rotate and increases the amount of the calcium hydroxide powder fed into the second chamber 8, thereby increasing the amount of calcium hydroxide in the vertical first chamber 7 and keeping the concentration of the calcium hydroxide solution in the first chamber 7 within a suitable range, and the slurry outlet pipe 13 periodically discharges the emulsion in the first chamber 7.
Electric connection between first motor 14 and electronic scale 16 and PH sensor 17, electronic scale 16 confirms the quality of adding the calcium hydroxide powder in the second chamber 8 through the change of mass around the storage box 12, it is suitable to make the volume of the calcium hydroxide powder of adding for first motor 14 signal, PH sensor 17 detected signal, send a signal for first motor 14, it is coniform to lead hawk 20, the ash of being convenient for falls, mount 3 forms the ash chute and the gas collection tank 1 right-hand member is provided with the ash discharge mouth with the gas collection tank 1 inner wall, a collection and the clearance for the dust, trachea 5 right side is provided with the valve, be provided with the water pump on the water pipe 10, be provided with the slush pump on the grout discharge pipe 13.
The working principle is as follows: waste gas enters a gas collecting tank 1 through a gas collecting hood 4, dust is intercepted by a filter screen 2, the dust at the lower part of the gas collecting tank 1 is cleaned under the action of a second motor 18, an ash cleaning arm 19 and an ash cleaning rod 21, part of the dust directly falls into an ash collecting tank, part of the dust falls to the top end of the ash collecting tank under the action of an ash guide plate 20, then the waste gas enters a first chamber 7 through an air pipe 5 and moves upwards through a calcium hydroxide solution in the first chamber 7, clear water is fed into a water pipe 10 and a second chamber 8, a first motor 14 drives an impeller 15 to feed calcium hydroxide powder into the second chamber 8, calcium hydroxide is accelerated to be melted into the clear water under the action of a stirring device 9 to generate a calcium hydroxide solution, the calcium hydroxide solution is fed into the first chamber 7 through a sprayer 11, and the vaporous calcium hydroxide solution is contacted with the rising waste gas in the process of feeding the calcium hydroxide solution into the first chamber 7, completely reacting sulfur oxides which are not completely reacted, when the PH sensor 17 detects that the PH value of the solution in the first chamber 7 is lower than a certain value, the first motor 14 rotates in an accelerating mode to increase the amount of the calcium hydroxide powder fed into the second chamber 8, so that the amount of the calcium hydroxide in the vertical first chamber 7 is increased, the concentration of the calcium hydroxide solution in the first chamber 7 is kept within a proper range, and the slurry discharge pipe 13 periodically discharges the emulsion in the first chamber 7.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims (7)

1. The utility model provides a cement kiln exhaust gas desulfurization device, includes gas collecting tank (1), its characterized in that: the gas collecting tank is characterized in that a gas collecting hood (4) is arranged at the bottom end of the gas collecting tank (1), a filter screen (2) is arranged in the middle of the inside of the gas collecting tank (1), a fixing frame (3) is arranged below the filter screen (2) and the fixing frame (3) is fixedly connected to the inside of the gas collecting tank (1), the gas collecting tank (1) is connected with a shell (6) through a gas pipe (5), a first cavity (7) and a second cavity (8) are arranged inside the shell (6), a stirring device (9) is arranged inside the second cavity (8), a plurality of sprayers (11) are arranged at the bottom end of the second cavity (8), a water pipe (10) is arranged at the top end of the shell (6) and communicated with the second cavity (8), a storage box (12) is arranged at the top end of the left side of the shell (6) and communicated with the second cavity (8), a slurry discharge pipe (13) is arranged at the bottom end of the right side of the shell (6) and communicated with the, first cavity (7) inside PH sensor (17) that is provided with, inside first motor (14) that is provided with of storage box (12), first motor (14) output is provided with impeller (15), storage box (12) bottom is provided with electronic scale (16) and electronic scale (16) fixed connection and is in casing (6) left side, mount (3) inboard is provided with second motor (18), supreme deashing arm (19), ash guide plate (20) and deashing pole (21) and the contact of filter screen (2) bottom are set gradually down to second motor (18) output, deashing arm (19) bottom and mount (3) contact.
2. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: the first motor (14) is electrically connected with the electronic scale (16) and the PH sensor (17).
3. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: the ash guide plate (20) is conical.
4. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: the fixing frame (3) and the inner wall of the gas collecting tank (1) form a dust collecting groove, and the right end of the gas collecting tank (1) is provided with a dust discharging opening.
5. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: and a valve is arranged on the right side of the air pipe (5).
6. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: the water pipe (10) is provided with a water pump.
7. The cement kiln exhaust gas desulfurization apparatus according to claim 1, characterized in that: and a slurry pump is arranged on the slurry discharge pipe (13).
CN202110368233.7A 2021-04-06 2021-04-06 Cement kiln exhaust gas desulfurization device Pending CN112915668A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110368233.7A CN112915668A (en) 2021-04-06 2021-04-06 Cement kiln exhaust gas desulfurization device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110368233.7A CN112915668A (en) 2021-04-06 2021-04-06 Cement kiln exhaust gas desulfurization device

Publications (1)

Publication Number Publication Date
CN112915668A true CN112915668A (en) 2021-06-08

Family

ID=76174219

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110368233.7A Pending CN112915668A (en) 2021-04-06 2021-04-06 Cement kiln exhaust gas desulfurization device

Country Status (1)

Country Link
CN (1) CN112915668A (en)

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