CN209865751U

CN209865751U - Device for removing carbon dioxide from exhaust gas of pig iron production plant

Info

Publication number: CN209865751U
Application number: CN201920549256.6U
Authority: CN
Inventors: 陈梦霞; 高贵栋; 殷晓宁
Original assignee: Shandong Lingang Nonferrous Metals Co Ltd
Current assignee: Shandong Lingang Nonferrous Metals Co Ltd
Priority date: 2019-04-22
Filing date: 2019-04-22
Publication date: 2019-12-31
Anticipated expiration: 2029-04-22

Abstract

The utility model discloses a device for getting rid of carbon dioxide in waste gas from pig iron manufacture equipment, including reation kettle, reation kettle's middle part integrated into one piece has the annular chamber, and the right side of annular chamber articulates there is the arc door, and the inner fixedly connected with of the lower surface of annular chamber filters a net section of thick bamboo, filters the upper end fixedly connected with toper net section of thick bamboo of a net section of thick bamboo, and the upper end fixedly connected with drum of toper net section of thick bamboo, the inside of drum is provided with the pivot, and reation kettle's last fixed surface installs the motor, the utility model relates to a rationally, it is convenient to use, and the filtration that can be quick goes out silt granule and reaction precipitation to avoid polluting reaction solution and jam pipeline, and can increase the area of contact of reaction solution and waste gas.

Description

Device for removing carbon dioxide from exhaust gas of pig iron production plant

Technical Field

The utility model relates to a technical field is got rid of to carbon dioxide, specific device that is arranged in getting rid of carbon dioxide from pig iron manufacture equipment's waste gas that says so.

Background

China has furnaces such as numerous boilers, kiln combustion furnaces, calcining furnaces, these furnaces discharge carbon dioxide gas to the sky constantly at every moment, cause greenhouse effect, destroy the environment, the method of getting rid of carbon dioxide among the current waste gas is the chemical absorption method mostly, react in injecting into the container that is equipped with basic solution through with carbon dioxide, but reaction rate is slower, and contain a large amount of dusts in the waste gas that pig iron made the production, the dust meets water and forms silt, long-term deposit can reduce reaction efficiency in the container, block up the pipeline, pollute the container, therefore, specially propose the utility model discloses a novel energy-saving furnace.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, the utility model aims at providing a device for getting rid of carbon dioxide in the waste gas of follow pig iron manufacture equipment has the function of being convenient for filter silt granule, and improve reaction rate.

The utility model provides a technical scheme that its technical problem adopted is: a device for getting rid of carbon dioxide in waste gas from pig iron manufacture equipment, including reation kettle, reation kettle's middle part integrated into one piece has the annular chamber, the right side of annular chamber articulates there is the arc door, the inner fixedly connected with filter screen section of thick bamboo of the lower surface of annular chamber, the upper end fixedly connected with toper net section of thick bamboo of filter screen section of thick bamboo, the upper end fixedly connected with drum of toper net section of thick bamboo, the inside of drum is provided with the pivot, reation kettle's last fixed surface installs the motor, the upper end fixed connection of shaft coupling and pivot is passed through to the lower part output of motor, the middle part outer wall fixedly connected with flight of pivot, the lower extreme fixedly connected with of pivot scrubs the mechanism, external power source is connected.

Further, the brushing mechanism comprises a pore plate, and the bottom end of the rotating shaft is fixedly connected with the middle part of the upper surface of the pore plate. The left end and the right-hand member of the upper surface of orifice plate all fixedly connected with connecting plate, the lower surface of orifice plate and the equal fixedly connected with brush of lateral surface of connecting plate, the outer end of brush is laminated with reation kettle's inner wall mutually.

Further, reation kettle includes the cauldron body, the upper portion of the cauldron body is provided with the kettle cover, motor fixed mounting is at the middle part of the upper surface of the cauldron body, the lower part fixedly connected with intake pipe of the cauldron body, the left side fixedly connected with blast pipe of kettle cover, the equal fixedly connected with ring flange of outer end outer wall of intake pipe and blast pipe.

Further, the outer wall of the upper part of the rotating shaft is fixedly connected with an arc-shaped cover.

Further, the outer wall of the lower end of the cylinder is fixedly connected with a reinforcing rod, and the outer end of the reinforcing rod is fixedly connected with the inner wall of the reaction kettle.

Further, an electric heating cylinder is embedded at the lower part of the reaction kettle and is electrically connected with an external power supply.

The utility model has the advantages that:

the utility model discloses a middle part at reation kettle sets up the annular chamber, the inside filter screen section of thick bamboo that sets up of annular chamber, filter screen section of thick bamboo fixed connection toper net section of thick bamboo, toper net section of thick bamboo fixed connection drum, when making the pivot drive the flight rotate, upwards promote reaction solution, make reaction solution get into the upper portion of filter screen section of thick bamboo and toper net section of thick bamboo by the drum, thereby filter reaction solution repeatedly, silt and reaction generation precipitate in the messenger reaction solution deposit in the annular chamber, through opening the arc door, can clear up the filth that filters out, and in filterable, make reaction solution circulation flow, make waste gas fully contact with reaction solution, react, thereby improve reaction rate.

Drawings

FIG. 1 is a front cross-sectional view of the present invention;

fig. 2 is a top cross-sectional view of the present invention.

Description of reference numerals: 1 reaction kettle, 101 kettle body, 102 kettle cover, 2 annular cavity, 3 filter screen cylinders, 4 conical screen cylinders, 5 cylinders, 6 rotating shafts, 7 motors, 8 spiral sheets, 9 scrubbing mechanisms, 91 pore plates, 92 connecting plates, 93 brushes, 10 arc doors, 11 arc covers, 12 reinforcing rods, 13 air inlet pipes, 14 exhaust pipes, 15 flange plates and 16 electric heating cylinders.

Detailed Description

The invention will be further described with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and such equivalents also fall within the scope of the appended claims.

Referring to fig. 1-2, which is a schematic structural diagram of the present invention, a device for removing carbon dioxide from waste gas of pig iron manufacturing equipment comprises a reaction kettle 1, a ring cavity 2 is integrally formed at the middle part of the reaction kettle 1, an arc door 10 is hinged at the right side of the ring cavity 2, the arc door 10 is sealed by a sealing gasket, a filter screen cylinder 3 is fixedly connected at the inner end of the lower surface of the ring cavity 2, the height of the filter screen cylinder 3 is half of that of the ring cavity 2, a conical screen cylinder 4 is fixedly connected at the upper end of the filter screen cylinder 3, the filter screen cylinder 3 and the conical screen cylinder 4 can filter out larger silt particles and reaction precipitates, a cylinder 5 is fixedly connected at the upper end of the conical screen cylinder 4, the cylinder 5 is concentrically arranged with the reaction kettle 1, the lower end of the cylinder 5 is not in contact with the reaction kettle 1, a rotating shaft 6 is arranged inside the, motor 7 is current inverter motor, the upper end fixed connection of shaft coupling and pivot 6 is passed through to the lower part output of motor 7, the middle part outer wall fixedly connected with flight 8 of pivot 6, the screw direction of flight 8 is the same with the rotation direction of motor 7, motor 7 drives flight 8 through pivot 6 and rotates, thereby produce ascending rivers, the lower extreme fixedly connected with of pivot 6 washes mechanism 9, wash mechanism 9 and wash reation kettle 1's lower part inner wall, the filth of absorption at reation kettle 1 lower part inner wall is cleared up, external power source is connected to motor 7 electricity.

Scrubbing mechanism 9 includes orifice plate 91, and orifice plate 91 is the circular plate body, and has evenly seted up a plurality of round hole, and the even upflow of waste gas of being convenient for produces even bubble to increase reaction area, the middle part fixed connection of the bottom of pivot 6 and the upper surface of orifice plate 91. The left end and the right end of the upper surface of the pore plate 91 are fixedly connected with a connecting plate 92, the connecting plate 92 is a common plate strip, the lower surface of the pore plate 91 and the outer side surface of the connecting plate 92 are fixedly connected with a brush 93, the brush 93 is made of polyethylene, the outer end of the brush 93 is attached to the inner wall of the reaction kettle 1, so that when the 6 drives the pore plate 91 and the connecting plate 92 to rotate, the brush 93 brushes the inner wall of the lower part of the reaction kettle 1 to enable dirt to move upwards from the small holes of the pore plate 91 and remove the dirt, the reaction kettle 1 comprises a kettle body 101, a kettle cover 102 is arranged on the upper part of the kettle body 101, the kettle body 101 is hermetically connected with the kettle cover 102 through bolts or hydraulic telescopic rods, a motor 7 is fixedly installed in the middle part of the upper surface of the kettle body 101, the lower part of the kettle body 101 is fixedly connected with an air inlet pipe 13, the air inlet pipe, intake pipe 13 and exhaust pipe 14's the equal fixedly connected with ring flange 15 of outer end outer wall, thereby be convenient for connect external pipeline, the upper portion outer wall fixedly connected with arc cover 11 of pivot 6, arc cover 11 is the arc, thereby restriction rivers direction, the lower extreme outer wall fixedly connected with stiffener 12 of drum 5, the outer end of stiffener 12 and reation kettle 1's inner wall fixed connection, stiffener 12 is the ordinary body of rod, thereby firm drum 5, 1 lower part of reation kettle is inlayed and is had electric heat cylinder 16, electric heat cylinder 16 is current resistance-type electric heat cylinder, thereby improve reaction solution temperature, improve reaction rate, external power source is connected to electric heat cylinder 16 electricity.

The utility model is in operation, when the utility model is used, reaction solution is injected into the reaction kettle 1, the reaction solution can select diluted sodium hydroxide solution, the air inlet pipe 13 and the exhaust pipe 14 are fixedly connected with an external waste gas pipeline, the motor 7 is started, the motor 7 drives the spiral piece 8 and the scrubbing mechanism 9 to rotate through the rotating shaft 6, waste gas enters the reaction kettle 1 through the air inlet pipe 13 and forms bubbles under the action of the rotating pore plate 91, thereby carbon dioxide and sodium hydroxide are reacted, the chemical formula is NaOH + CO2 excess = NaHCO3, thereby carbon dioxide is removed, simultaneously, the spiral piece 8 rotates, the reaction solution is lifted upwards from the cylinder 5, the reaction solution flows downwards on the upper surface of the filter screen cylinder 3 and the conical screen cylinder 4 under the action of self gravity, thereby filtering is carried out, silt particles and reaction precipitates are filtered and deposited in the annular cavity 2, after a period of time, open arc door 10 and can clear up the filth that filters off and filter, the utility model relates to a rationally, it is convenient to use, and the filtration that can be quick is gone out silt particle and is reacted and deposit to avoid polluting reaction solution and blocking up the pipeline, and can increase the area of contact of reaction solution and waste gas, improve reaction rate, consequently, have higher practicality.

Claims

1. An apparatus for removing carbon dioxide from an exhaust gas of a plant for manufacturing pig iron, characterized in that: comprises a reaction kettle (1), an annular cavity (2) is integrally formed in the middle of the reaction kettle (1), the right side of the annular cavity (2) is hinged with an arc door (10), the inner end of the lower surface of the annular cavity (2) is fixedly connected with a filter screen cylinder (3), the upper end of the filter screen cylinder (3) is fixedly connected with a conical screen cylinder (4), the upper end of the conical screen cylinder (4) is fixedly connected with a cylinder (5), a rotating shaft (6) is arranged in the cylinder (5), a motor (7) is fixedly arranged on the upper surface of the reaction kettle (1), the lower output end of the motor (7) is fixedly connected with the upper end of the rotating shaft (6) through a coupler, the middle outer wall of the rotating shaft (6) is fixedly connected with a spiral sheet (8), the lower end of the rotating shaft (6) is fixedly connected with a brushing mechanism (9), and the motor (7) is electrically connected with an external power supply.

2. The apparatus for removing carbon dioxide from an exhaust gas of a plant for pig iron manufacture according to claim 1, characterized in that: scrubbing mechanism (9) include orifice plate (91), the middle part fixed connection of the bottom of pivot (6) and the upper surface of orifice plate (91), the equal fixedly connected with connecting plate (92) of left end and the right-hand member of the upper surface of orifice plate (91), the equal fixedly connected with brush (93) of the lower surface of orifice plate (91) and the lateral surface of connecting plate (92), the outer end of brush (93) is laminated with the inner wall of reation kettle (1) mutually.

3. The apparatus for removing carbon dioxide from an exhaust gas of a plant for pig iron manufacture according to claim 1, characterized in that: reaction kettle (1) is including the cauldron body (101), the upper portion of the cauldron body (101) is provided with kettle cover (102), motor (7) fixed mounting is at the middle part of the upper surface of the cauldron body (101), the lower part fixedly connected with intake pipe (13) of the cauldron body (101), left side fixedly connected with blast pipe (14) of kettle cover (102), equal fixedly connected with ring flange (15) of outer end outer wall of intake pipe (13) and blast pipe (14).

4. The apparatus for removing carbon dioxide from an exhaust gas of a plant for pig iron manufacture according to claim 1, characterized in that: the outer wall of the upper part of the rotating shaft (6) is fixedly connected with an arc-shaped cover (11).

5. The apparatus for removing carbon dioxide from an exhaust gas of a plant for pig iron manufacture according to claim 1, characterized in that: the outer wall of the lower end of the cylinder (5) is fixedly connected with a reinforcing rod (12), and the outer end of the reinforcing rod (12) is fixedly connected with the inner wall of the reaction kettle (1).

6. The apparatus for removing carbon dioxide from an exhaust gas of a plant for pig iron manufacture according to claim 1, characterized in that: an electric heating cylinder (16) is embedded at the lower part of the reaction kettle (1), and the electric heating cylinder (16) is electrically connected with an external power supply.