CN214513379U

CN214513379U - Cement kiln exhaust gas desulfurization device

Info

Publication number: CN214513379U
Application number: CN202120693146.4U
Authority: CN
Inventors: 陈利涛; 王志刚; 刘广铎; 李志勇; 刘冀强; 胡超龙; 贡利坤; 于辰平; 聂苍印; 只艳芳
Original assignee: Hebei Jinyu Dingxin Cement Co ltd
Current assignee: Hebei Jinyu Dingxin Cement Co ltd
Priority date: 2021-04-06
Filing date: 2021-04-06
Publication date: 2021-10-29
Anticipated expiration: 2031-04-06

Abstract

The utility model discloses a cement kiln waste gas desulphurization unit, including the gas collecting tank, the gas collecting tank is connected with the casing through the trachea, the inside agitating unit that is provided with of second cavity, second cavity bottom is provided with a plurality of atomizer, the casing top is provided with water pipe and second cavity intercommunication, casing left side top is provided with storage box and second cavity intercommunication, casing right side bottom is provided with slurry discharge pipe and first cavity intercommunication, the inside PH sensor that is provided with of first cavity, the inside first motor that is provided with of storage box, first motor output end is provided with the impeller, the mount inboard is provided with the second motor, supreme deashing arm, ash guide plate and deashing pole and the contact of deashing pole and filter screen bottom of having set gradually are followed to the second motor output. The utility model discloses in, avoid the pipe blockage, can also keep calcium hydrate solution concentration suitable, be worth wideling popularize.

Description

Cement kiln exhaust gas desulfurization device

Technical Field

The utility model relates to a sweetener field especially relates to a cement kiln exhaust 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.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a cement kiln waste gas desulfurization device.

In order to achieve the above purpose, the utility model 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 impeller is arranged at the output end of the first motor, 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 utility model discloses following beneficial effect has:

1. the utility model discloses in, at first be provided with the filter screen and keep off the dust in the gas collecting tank below, then the second motor rotates and drives deashing pole and deashing arm and clean the dust and get off and fall into the collection ash inslot through leading the hawk, sends out the gas collecting tank with the dust from the ash discharge mouth through the deashing arm, keeps the gas collecting tank interior clean, avoids the pipeline to be blockked up.

2. The utility model discloses in, the PH value in the PH sensor detects first chamber, is less than certain numerical value when the PH value after, and first motor speed increases for send into calcium hydroxide powder in to the second chamber, improve the PH value in the second chamber, then send to first chamber through the atomizer in, guarantee that the calcium hydroxide solution concentration in the first chamber is in suitable within range, be worth wideling popularize.

Drawings

FIG. 1 is a front view of a cement kiln exhaust gas desulfurization device 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 present invention;

fig. 3 is a schematic view of an ash guide plate of a cement kiln exhaust gas desulfurization device provided by the utility model.

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 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 "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 referred to must have a specific orientation, be constructed and operated in a specific 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: 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 sensor 17 is arranged inside the first cavity 7, a first motor 14 is arranged inside the storage box 12, 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 frame 3 under the action of the ash guide plate 20, then the waste gas enters a first chamber 7 through a gas pipe 5 and moves upwards through a calcium hydroxide solution in the first chamber 7, 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 and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

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), 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).