CN215610406U

CN215610406U - Tower type continuous carbon dioxide recovery equipment

Info

Publication number: CN215610406U
Application number: CN202122406146.4U
Authority: CN
Inventors: 崔振杰; 雷霄
Original assignee: Hebei Maidian Environmental Technology Co ltd
Current assignee: Hebei Maidian Environmental Technology Co ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-01-25
Anticipated expiration: 2031-09-30

Abstract

The utility model relates to the technical field of carbon dioxide recovery, and provides tower-type continuous carbon dioxide recovery equipment, which comprises a recovery tower, an air inlet pipe, a supporting plate, a heating device, air outlet holes and recovery holes, wherein the air inlet pipe, the supporting plate, the heating device, the air outlet holes and the recovery holes are arranged on the recovery tower, the recovery tower is provided with an inner cavity, the air inlet pipe is communicated with the inner cavity and used for introducing carbon dioxide impurity gas to be absorbed, the supporting plate is provided with a plurality of supporting plates, the supporting plates are arranged in the inner cavity in a layered mode and located above the air inlet pipe, the supporting plate is used for supporting solid amine, the heating device is arranged at the bottom of the inner cavity and used for heating the solid amine, the air outlet holes are formed in the top of the recovery tower and are communicated with the inner cavity, pure air is discharged through the air outlet holes, and carbon dioxide is recovered through the recovery holes after the air outlet holes are closed. Through above-mentioned technical scheme, the insufficient and leakage problem of carbon dioxide absorption among the prior art has been solved.

Description

Tower type continuous carbon dioxide recovery equipment

Technical Field

The utility model relates to the technical field of carbon dioxide recovery, in particular to tower-type continuous carbon dioxide recovery equipment.

Background

Carbon dioxide is a byproduct of fuel combustion, and direct emission causes pollution to the atmosphere. The greenhouse effect is formed, and the carbon dioxide has higher industrial and agricultural value. The separation and recovery techniques for carbon dioxide gas generally used include chemical solvent absorption, physical solvent absorption, adsorption, membrane separation, catalytic combustion, and the like. The carbon dioxide is converted into a chemical product with high added value, so that the total utilization rate of raw materials can be improved, the production cost is reduced, the global environment can be improved, and good social benefit and economic benefit are achieved. The adsorption method generally comprises the steps that carbon dioxide gas passes through solid amine to absorb the carbon dioxide, pure air is discharged, the carbon dioxide on a material is desorbed by using means, and the carbon dioxide is collected.

SUMMERY OF THE UTILITY MODEL

The utility model provides tower type continuous carbon dioxide recovery equipment, which solves the problems of insufficient carbon dioxide adsorption and leakage in the related technology.

The technical scheme of the utility model is as follows:

a tower-type continuous carbon dioxide recovery device comprises

The recovery tower is provided with an inner cavity,

the gas inlet pipe is arranged on the recovery tower, is communicated with the inner cavity and is used for introducing carbon dioxide impurity gas to be absorbed,

a plurality of supporting plates which are arranged in the inner cavity in a layered manner and are positioned above the air inlet pipe, the supporting plates are used for supporting solid amine,

a heating device arranged at the bottom of the inner cavity and used for heating solid amine,

an air outlet hole which is arranged at the top of the recovery tower and is communicated with the inner cavity, pure air is discharged through the air outlet hole,

and the recovery hole is formed in the recovery tower, and after the air outlet is closed, the carbon dioxide is recovered through the recovery hole.

As a further technical proposal, the method also comprises

And the filtering piece is arranged on the air inlet pipe, and the mixed gas enters the inner cavity through the filtering piece.

As a further technical scheme, the supporting plate is provided with a through hole and a first cavity, mixed gas passes through solid amine through the through hole, the side wall of the recovery tower is provided with a second cavity, and the second cavity is communicated with the first cavity

A plurality of cooling holes which are arranged on the supporting plate and communicated with the first cavity,

and the cold air pipe is arranged on the recovery tower and communicated with the second cavity, and cooling air passes through the cold air pipe and the cooling holes to cool the solid amine.

As a further technical solution, the heating device comprises

A hot air port arranged at the bottom of the inner cavity,

the hot air pipe is arranged on the recovery tower and communicated with the hot air port, and water vapor enters the inner cavity through the hot air pipe and the hot air port.

As a further technical scheme, the second cavity is divided into a first cavity and a second cavity, the first cavity is communicated with the cold air pipe through the first cavity, and the hot air pipe is communicated with the hot air port through the second cavity.

As a further technical scheme, the wall of the recovery tower is divided into two parts which are connected through a rotating shaft, and the recovery tower also comprises

A plurality of clapboards which are rotatably arranged on the recovery tower through a rotating shaft, the inner cavity is divided into an upper part and a lower part by the clapboards through rotation, the supporting plates and the recovery holes are respectively positioned in the upper part and the lower part of the inner cavity, the clapboards are in sealing fit with the side wall of the recovery tower after rotating, the clapboards are provided with third cavities which are communicated with the second cavities,

and the air outlet is provided with a plurality of air outlets, is arranged on the partition plate and is communicated with the third cavity, and the air outlet is communicated with the hot air pipe through the third cavity and the second cavity.

As a further technical proposal, the method also comprises

An exhaust fan connected to the recovery hole, the exhaust fan extracting the desorbed carbon dioxide,

the condenser is connected with the exhaust fan,

and the dryer is arranged behind the condenser and is connected to the exhaust fan through the condenser.

The working principle and the beneficial effects of the utility model are as follows:

the carbon dioxide is separated and recovered by a chemical solvent absorption method, a physical solvent absorption method, an adsorption method, etc., and the methods and the required equipment are different. The adsorption method is that carbon dioxide is absorbed by solid amine to discharge pure air, and the carbon dioxide on the solid amine is desorbed by means to collect carbon dioxide gas, in the prior art, the adsorption and desorption of the solid amine are in two spaces, the position of the solid amine needs to be transferred, and part of the carbon dioxide adsorbed on the solid amine is desorbed in the transferring process and is emitted into the air to cause leakage; further, when solid amine adsorption is used, the absorption is insufficient through a single absorption.

The solution of the utility model is that the absorption and desorption of carbon dioxide by solid amine are in the same space, and the solid amine is not transferred. The utility model discloses a recovery tower, including the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air inlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air outlet is equipped with the air outlet, the air inlet is equipped with the air outlet.

The utility model discloses a recovery tower has the inner chamber, the intake pipe sets up on recovery tower, with the inner chamber intercommunication, mix carbon dioxide and get into the inner chamber from the intake pipe, the intracavity divides the layering to set up a plurality of layer boards, layer board bearing solid amine, be located the intake pipe top, the venthole sets up on recovery tower, pure air after absorbing carbon dioxide through solid amine passes through the venthole and discharges, after the absorption finishes, close intake pipe and venthole, heating solid amine through the heating device who sets up on recovery tower, the carbon dioxide that solid amine released is retrieved through the recovery hole that sets up on recovery tower, solid amine absorbs and desorption in same space, the carbon dioxide that the desorption was accomplished retrieves through the recovery hole, prevent carbon dioxide leakage according to prior art's sealed effect can be fine, the solid amine of multilayer arrangement, it is more abundant to absorb.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a pallet structure according to the present invention;

FIG. 3 is a cross-sectional view of a pallet of the present invention;

FIG. 4 is a schematic view of the closed state of the partition according to the present invention;

FIG. 5 is a schematic view of the structure of the present invention with the partition opened;

FIG. 6 is a cross-sectional view of a separator plate according to the present invention;

in the figure: 1. the recycling tower comprises a recycling tower body, 2, an inner cavity, 3, an air inlet pipe, 4, a supporting plate, 5, a heating device, 6, an air outlet, 7, a recycling hole, 8, a filtering piece, 9, a through hole, 10, a first cavity, 11, a second cavity, 12, a cooling hole, 13, a cold air pipe, 14, a hot air port, 15, a hot air pipe, 16, a first cavity, 17, a second cavity, 18, a partition plate, 19, a third cavity, 20, an air outlet, 21, an exhaust fan, 22, a condenser, 23 and a dryer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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 inventive step, are intended to be within the scope of the present invention.

As shown in fig. 1 to 6, the present embodiment proposes

A tower-type continuous carbon dioxide recovery device comprises

A recovery tower 1, which is provided with an inner cavity 2,

an air inlet pipe 3 arranged on the recovery tower 1, the air inlet pipe 3 is communicated with the inner cavity 2 and is used for introducing carbon dioxide impurity gas to be absorbed,

a plurality of supporting plates 4 which are arranged in the inner cavity 2 in a layered manner and are positioned above the air inlet pipe 3, the supporting plates 4 are used for supporting solid amine,

a heating device 5 arranged at the bottom of the inner cavity 2 and used for heating solid amine,

an air outlet 6 arranged at the top of the recovery tower 1 and communicated with the inner cavity 2, pure air is discharged through the air outlet 6,

and the recovery hole 7 is arranged on the recovery tower 1, and after the air outlet 6 is closed, the carbon dioxide is recovered through the recovery hole 7.

The solution in this embodiment is that the absorption and desorption of carbon dioxide by the solid amine are in the same space, and the solid amine is not transferred. The utility model discloses a recovery tower, including the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air inlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air inlet is equipped with the air outlet, the air outlet is equipped with the air inlet, the air outlet is equipped with the air outlet, the air inlet is equipped with the air outlet.

Specifically, the recovery tower 1 is provided with an inner cavity 2, an air inlet pipe 3 is arranged on the recovery tower 1 and communicated with the inner cavity 2, mixed carbon dioxide enters the inner cavity from the air inlet pipe 3, a plurality of support plates 4 are arranged in the inner cavity 2 in a layered mode, the support plates 4 support solid amine and are positioned above the air inlet pipe 3, air outlet holes 6 are formed in the recovery tower 1, pure air obtained after the carbon dioxide is absorbed by the solid amine is discharged through the air outlet holes 6, after the absorption is finished, the air inlet pipe 3 and the air outlet holes 7 are closed, the solid amine is heated through a heating device 5 arranged on the recovery tower 1, the carbon dioxide released by the solid amine is recovered through recovery holes 7 formed in the recovery tower 1, the solid amine is absorbed and desorbed in the same space, the desorbed carbon dioxide is recovered through the recovery holes 7, and the carbon dioxide leakage can be well prevented according to the sealing effect of the prior art, solid amine is arranged in multiple layers, and absorption is more sufficient.

Further, also comprises

And a filter element 8 arranged on the air inlet pipe 3, wherein the mixed gas enters the inner cavity 2 through the filter element 8.

In order to prevent in the particulate matter among the mist from getting into recovery tower 1 in this embodiment, lead to solid amine etc. to become invalid, specifically set up on intake pipe 3 and filter 8, the mist passes through to filter 8 entering inner chamber 2, filters 8 and filters particulate matter etc. in the mist and accomplish, guarantees that solid amine etc. in recovery tower 1 does not receive the pollution.

Further, the supporting plate 4 is provided with a through hole 9 and a first cavity 10, the mixed gas passes through the solid amine through the through hole 9, the side wall of the recovery tower 1 is provided with a second cavity 11, and the second cavity 11 is communicated with the first cavity 10, and the device also comprises

A plurality of cooling holes 12 which are all arranged on the supporting plate 4 and communicated with the cooling holes 12 and the first cavity 10,

and the cold air pipe 13 is arranged on the recovery tower 1, the cold air pipe 13 is communicated with the second cavity 11, and the cooling air cools the solid amine through the cold air pipe 13 and the cooling holes 12.

In this embodiment, layer board 4 has through-hole 9 and first cavity 10, the mist passes through solid amine through-hole 9, recovery tower 1 lateral wall has second cavity 11, second cavity 11 and first cavity 10 intercommunication, a plurality of cooling holes 12 have on the layer board 4, cooling hole 12 and first cavity 10 intercommunication, cold-blast pipe 13 intercommunication air-cooler and second cavity 11, the cooling air cools off solid amine through cold-blast pipe 13 and cooling hole 12, in order to make solid amine temperature cool off to can absorb the carbon dioxide temperature fast, guarantee next solid amine absorption effect.

Further, the heating means 5 comprises

A hot air port 14 arranged at the bottom of the inner cavity 2,

the hot air pipe 15 is arranged on the recovery tower 1, the hot air pipe 15 is communicated with the hot air port 14, and water vapor enters the inner cavity 2 through the hot air pipe 15 and the hot air port 14.

In the embodiment, a heating mode of the heating device 5 is provided, specifically, the hot air port 14 is arranged at the bottom of the inner cavity 2, the hot air pipe 15 is communicated with the hot air port 14, and water vapor enters the inner cavity 2 through the hot air pipe 15 and the hot air port 14 to heat the solid amine.

Further, the second cavity 11 is divided into a first cavity 16 and a second cavity 17, the first cavity 10 is communicated with the cold air pipe 13 through the first cavity 16, and the hot air pipe 15 is communicated with the hot air port 14 through the second cavity 17.

In this embodiment, the second cavity 11 is divided into a first cavity 16 and a second cavity 17, the first cavity 10 and the cold air pipe 13 are both communicated with the first cavity 16, and the hot air pipe 15 is communicated with the hot air port 14 through the second cavity 17, so that the uniformity of cooling and heating is ensured.

Further, the tower wall of the recovery tower 1 is divided into two parts which are connected by a rotating shaft, and the recovery tower also comprises

A plurality of clapboards 18 which are rotatably arranged on the recovery tower 1 through a rotating shaft, the clapboard 18 divides the inner cavity 2 into an upper part and a lower part through rotation, two supporting plates 4 and two recovery holes 7 are respectively positioned in the upper part and the lower part of the inner cavity 2, the clapboard 18 is in sealing fit with the side wall of the recovery tower 1 after rotating, the clapboard 18 is provided with a third cavity 19, the third cavity 19 is communicated with the second cavity 17,

and a plurality of air outlets 20 are arranged on the partition plate 18 and communicated with the third cavity 19, and the air outlets 20 are communicated with the hot air pipe 15 through the third cavity 19 and the second cavity 17.

In this embodiment, in order to prevent carbon dioxide released from the solid amine at the bottom layer from being absorbed again by the solid amine at the upper layer, specifically, the tower wall of the recovery tower 1 is divided into an upper part and a lower part, which are connected through a rotating shaft, the partition plate 18 is rotatably disposed on the recovery tower 1 through the rotating shaft, the partition plate 18 divides the inner cavity 2 into two parts after rotating, and the two support plates 4 and the two recovery holes 7 are disposed on the upper part and the lower part of the inner cavity 2; when absorbing carbon dioxide, baffle 8 rotates and opens, baffle 8 and recovery tower 1 tower wall seal fit, carbon dioxide can pass through inner chamber 2 completely, after the absorption finishes, baffle 18 closes, baffle 18 has third inner chamber 19, third inner chamber 19 and second chamber 17 intercommunication, set up a plurality of air outlets 20 on the baffle 18, air outlet 20 passes through third chamber 19 and second chamber 17 and hot-blast main 15 intercommunication, during the heating, hot-blast main 14 and air outlet 20 heat upper and lower both sides solid amine simultaneously, the carbon dioxide of lower floor desorption is retrieved from the recovery hole 7 of lower floor, the carbon dioxide of upper strata desorption is retrieved from upper recovery hole 7, intermediate bottom 18 separates, the upper and lower two-layer carbon dioxide can not mix.

Further, also comprises

An exhaust fan 21 connected to the recovery hole 7 for extracting the desorbed carbon dioxide through the exhaust fan 21,

a condenser 22, connected to the suction fan 21,

a dryer 23 disposed behind the condenser 22, wherein the dryer 23 is connected to the suction fan 21 through the condenser 22.

In this embodiment, air exhauster 21 is connected on recovery hole 7, takes out the carbon dioxide in inner chamber 2 through air exhauster 21, and condenser 22 is connected behind air exhauster 21, and the carbon dioxide temperature of taking out is higher, and contains a small amount of moisture, cools down and condensation portion moisture to carbon dioxide through the condenser, and desicator 23 is located behind condenser 22, and desicator 23 carries out abundant drying, convenient follow-up use to carbon dioxide.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tower type continuous carbon dioxide recovery device is characterized by comprising

A recovery tower (1) with an inner cavity (2),

the gas inlet pipe (3) is arranged on the recovery tower (1), the gas inlet pipe (3) is communicated with the inner cavity (2) and is used for introducing carbon dioxide impurity gas to be absorbed,

a plurality of supporting plates (4) which are arranged in the inner cavity (2) in a layered manner and are positioned above the air inlet pipe (3), wherein the supporting plates (4) are used for supporting solid amine,

a heating device (5) arranged at the bottom of the inner cavity (2) and used for heating solid amine,

an air outlet (6) arranged at the top of the recovery tower (1) and communicated with the inner cavity (2), pure air is discharged through the air outlet (6),

and the recovery hole (7) is arranged on the recovery tower (1), and after the gas outlet hole (6) is closed, the carbon dioxide is recovered through the recovery hole (7).

2. The tower-type continuous carbon dioxide recovery plant according to claim 1, further comprising

Filter piece (8), set up in on intake pipe (3), the mist passes through filter piece (8) gets into inner chamber (2).

3. The tower-type continuous carbon dioxide recovery plant according to claim 1, wherein the supporting plate (4) has a through hole (9) and a first cavity (10), the mixed gas passes through the solid amine through the through hole (9), the side wall of the recovery tower (1) has a second cavity (11), and the second cavity (11) is communicated with the first cavity (10), and further comprising

A plurality of cooling holes (12) which are all arranged on the supporting plate (4) and communicated with the first cavity (10) and the cooling holes (12),

and the cold air pipe (13) is arranged on the recovery tower (1), the cold air pipe (13) is communicated with the second cavity (11), and cooling air passes through the cold air pipe (13) and the cooling holes (12) to cool the solid amine.

4. A tower-type continuous carbon dioxide recovery plant according to claim 3, characterized in that the heating means (5) comprise

A hot air port (14) arranged at the bottom of the inner cavity (2),

the hot air pipe (15) is arranged on the recovery tower (1), the hot air pipe (15) is communicated with the hot air port (14), and water vapor enters the inner cavity (2) through the hot air pipe (15) and the hot air port (14).

5. The tower-type continuous carbon dioxide recovery apparatus according to claim 4, wherein the second cavity (11) is divided into a first cavity (16) and a second cavity (17), the first cavity (10) is communicated with the cold air duct (13) through the first cavity (16), and the hot air duct (15) is communicated with the hot air port (14) through the second cavity (17).

6. The tower-type continuous carbon dioxide recovery apparatus according to claim 5, wherein the wall of the recovery tower (1) is divided into two parts connected by a rotating shaft, and further comprising

The partition plates (18) are arranged on the recovery tower (1) in a rotating mode through the rotating shaft, the inner cavity (2) is divided into an upper part and a lower part through the rotation of the partition plates (18), the supporting plates (4) and the recovery holes (7) are respectively provided with two parts which are respectively positioned in the upper part and the lower part of the inner cavity (2), the partition plates (18) are in sealing fit with the side wall of the recovery tower (1) after rotating, the partition plates (18) are provided with third cavities (19), and the third cavities (19) are communicated with the second cavity (17),

and a plurality of air outlets (20) are arranged on the partition plate (18) and communicated with the third cavity (19), and the air outlets (20) are communicated with the hot air pipe (15) through the third cavity (19) and the second cavity (17).

7. The tower-type continuous carbon dioxide recovery plant according to claim 1, further comprising

An exhaust fan (21) connected to the recovery hole (7), wherein the desorbed carbon dioxide is extracted by the exhaust fan (21),

a condenser (22) connected to the exhaust fan (21),

the dryer (23) is arranged behind the condenser (22), and the dryer (23) is connected to the exhaust fan (21) through the condenser (22).