CN111545017B - NMP waste liquid recovery device - Google Patents
NMP waste liquid recovery device Download PDFInfo
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- CN111545017B CN111545017B CN202010413817.7A CN202010413817A CN111545017B CN 111545017 B CN111545017 B CN 111545017B CN 202010413817 A CN202010413817 A CN 202010413817A CN 111545017 B CN111545017 B CN 111545017B
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/22—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/24—Oxygen or sulfur atoms
- C07D207/26—2-Pyrrolidones
- C07D207/263—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms
- C07D207/267—2-Pyrrolidones with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to other ring carbon atoms with only hydrogen atoms or radicals containing only hydrogen and carbon atoms directly attached to the ring nitrogen atom
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
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- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to an NMP waste liquid recovery device, belonging to the technical field of organic gas recovery, comprising a frame body, wherein the frame body is provided with a tower body, the tower body sequentially comprises a liquid storage cavity, an adsorption cavity and a spraying cavity from bottom to top, the tower body is internally provided with the adsorption device and the spraying device, the outer wall of the tower body is communicated with the tower body and is provided with an air inlet pipe, a liquid outlet pipe and a water replenishing pipe, the end part of the air inlet pipe, which is positioned in the tower body, is communicated with the air inlet pipe and is provided with an air supply pipe, the air supply pipe comprises a first air supply pipe and a second air supply pipe, the second air supply pipe is provided with a plurality of exhaust pipes, the exhaust pipes are provided with a plurality of air outlet pipes, each air outlet pipe is internally provided with a one-way valve, the first air supply pipe is provided with a connecting pipe, the second air supply pipe is rotatably connected to the connecting pipe, the bottom of the tower body is provided with a driving piece for driving the second air supply pipe to rotate, the driving piece can drive the plurality of exhaust pipes and the plurality of air outlet pipes to rotate, the water at the bottom of the tower body can be stirred by the exhaust pipe and the air outlet pipe, so that the dissolving effect of gas dissolved in water is improved.
Description
Technical Field
The invention relates to the technical field of organic gas recovery, in particular to a NMP waste liquid recovery device.
Background
N-methylpyrrolidone (NMP) is an aprotic solvent with extremely strong solubility and is widely applied to industries such as lithium batteries, medicines, pesticides, electronics, petrochemical industry and the like, NMP does not enter a final lithium battery product in the production and manufacturing process of lithium batteries, NMP is used as a solvent for dispersing a binder, the NMP is volatilized through a drying procedure at a certain temperature, and NMP-containing waste gas is generated into NMP waste liquid through a recovery device.
Chinese patent No. CN210287185U discloses an NMP recovery processing system, which comprises a recovery tower, a rectifying tower, a recovery loop, a liquid return loop, and a gas return loop, wherein the recovery tower is provided with a containing cavity, an adsorption device, and a spraying device from bottom to top; a liquid outlet, an air inlet, a water replenishing port and a recovery port are arranged on the side wall of the recovery tower, the liquid outlet is communicated with the bottom of the accommodating cavity, the air inlet is communicated to the accommodating cavity, the water replenishing port and the recovery port are higher than the adsorption device in height, the water replenishing port is higher than the recovery port, and the water replenishing port is connected with a spraying device and replenishes water to the adsorption device; when the recovery tower is used for treating the NMP gas, the NMP gas is introduced into the recovery tower along the gas inlet, the NMP gas can be firstly dissolved in water at the bottom of the recovery tower, and the undissolved gas can rise to be mutually dissolved with water on the spraying device fragrance-spraying adsorption device to form an NMP solution, and then the subsequent rectification treatment is carried out.
The above prior art solutions have the following drawbacks: only let in NMP gas to the recovery tower in through the air inlet for the mode of NMP gas dissolution in the aquatic of recovery tower bottom, the speed that gas was removed by the aquatic of recovery tower bottom is very fast, makes the contact between NMP gas and the water limited, has reduced the gaseous dissolution effect of dissolving in aqueous of NMP, and when NMP gaseous aeration quantity was great, then can further reduce the gaseous dissolution effect of dissolving in aqueous of NMP.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide an NMP waste liquid recovery device for improving the dissolving effect of NMP gas in water.
The above object of the present invention is achieved by the following technical solutions:
an NMP waste liquid recovery device comprises a frame body, wherein a tower body is arranged on the frame body, the tower body sequentially comprises a liquid storage cavity, an adsorption cavity and a spraying cavity from bottom to top, the adsorption device is arranged in the position of the adsorption cavity in the tower body, the spraying device is arranged in the position of the spraying cavity in the tower body, an air inlet pipe and a liquid outlet pipe are arranged on the outer wall of the tower body and communicated with the tower body at the position of the liquid storage cavity, a water replenishing pipe communicated with the tower body is arranged on the position of the spraying cavity in the tower body, an air supply pipe is arranged at the end part of the air inlet pipe in the tower body and communicated with the air inlet pipe, the end part of the air supply pipe far away from the air inlet pipe extends towards the center of the bottom of the tower body, the air supply pipe comprises a first air supply pipe and a second air supply pipe vertically arranged with the first air supply pipe, the first air supply pipe and the air inlet pipe are mutually communicated, evenly be provided with a plurality of blast pipes, every along the circumference position of second air supply pipe on the second air supply pipe the blast pipe all is mutual intercommunication setting with the second air supply pipe, the blast pipe evenly is provided with a plurality of outlet ducts, every along the length direction of blast pipe on adsorption equipment's the face all be provided with the check valve in the outlet duct, the position that just is located the tip place of second air supply pipe on the first air supply pipe is provided with the connecting pipe, the second air supply pipe rotates and connects on the connecting pipe, the bottom of tower body is provided with and is used for driving the second air supply pipe and drives a plurality of blast pipe pivoted driving piece.
Through adopting above-mentioned technical scheme, can drive the second air supply pipe through the driving piece and be located the connecting pipe and rotate, make the second air supply pipe can drive a plurality of blast pipes and a plurality of outlet duct rotate, the setting of a plurality of blast pipes and a plurality of outlet duct can make the gaseous evenly distributed of NMP in the bottom of tower body, and the gaseous aquatic that is located the tower body bottom that can be even of NMP passes through, thereby the dissolving effect of gas dissolution in the aquatic has been improved, when a plurality of blast pipes and outlet duct rotate, the water of tower body bottom can be stirred to blast pipe and outlet duct, thereby make gaseous dissolving in the aquatic more even, make water can further reach the saturated condition, further improved the dissolving effect of gas dissolution in the aquatic.
The present invention in a preferred example may be further configured to: wear to establish and rotate on the diapire of tower body and be connected with the axis of rotation, the axis of rotation is located the tip fixed connection of tip in the tower body and second air supply pipe, the driving piece is established and fixed connection is located the bull gear on the tip outside the tower body in the axis of rotation including the cover, the fixed motor that is provided with in bottom that just is located the tower body on the outer wall of tower body, the drive end of motor is gone up the cover and is established and fixedly connected with is used for rotating when with bull gear intermittent type meshing's sector gear.
Through adopting above-mentioned technical scheme, when needs second air supply pipe to drive a plurality of blast pipes and outlet duct when rotating, it continuously rotates to drive sector gear through the motor, but sector gear intermittent type and running gear meshing this moment, thereby make sector gear drive running gear intermittent type and rotate, make a plurality of blast pipes and a plurality of outlet duct can stir the water of tower body bottom, and when sector gear and running gear break away from the meshing, the second air supply pipe can stall, tower body bottom rotatory water can be blockked by a plurality of blast pipes and outlet duct this moment, cause the aquatic products of tower body bottom to produce and swash, thereby further improved the dissolving effect of gas dissolution in aquatic.
The present invention in a preferred example may be further configured to: the outer wall of the tower body is provided with a spring at the position where the rotating shaft is located, the rotating shaft is sleeved with the spring, one end of the spring is fixedly connected to the outer wall of the tower body, and the other end of the spring is fixedly connected to the rotating gear.
Through adopting above-mentioned technical scheme, when sector gear and rotating gear meshing, rotating gear can resist the elasticity drive axis of rotation of spring and rotate, make a plurality of blast pipes and a plurality of outlet duct can stir the water of tower body bottom, after sector gear and rotating gear break away from the meshing relation, the elasticity recovery normal position of spring can be resisted to the axis of rotation, thereby make the axis of rotation drive a plurality of blast pipes and outlet duct antiport, make a plurality of blast pipes and outlet duct play the effect of stirring back and forth to the water of tower body bottom, thereby further improved the dissolving effect of gas dissolution in aquatic.
The present invention in a preferred example may be further configured to: and the outer wall of the tower body is provided with a protective cover at the positions where the rotating gear, the sector gear and the motor are located, and the rotating gear, the sector gear and the motor are all located in the protective cover.
Through adopting above-mentioned technical scheme, the safety cover can play the effect of protection to rotating gear, sector gear and motor, prevents that sector gear and rotating gear from exposing outside and rusts, has prolonged sector gear and rotating gear's life.
The present invention in a preferred example may be further configured to: the safety cover is personally submitted the opening setting towards the tower body, the cell body that is used for supplying the opening edge immigration of safety cover is offered to the position that just is located the safety cover place on the tower body, the circumference rigidity along the cell body in the cell body is provided with first magnet strip, the opening edge of safety cover is provided with and is used for with the absorbent second magnet strip of first magnet strip.
Through adopting above-mentioned technical scheme, adopt setting up of first magnet strip and second magnet strip to make things convenient for safety cover installation and dismantlement to the convenience is maintained and is changed the inside sector gear of safety cover, running gear and spring.
The present invention in a preferred example may be further configured to: the connecting groove has been seted up along the circumference position hoop of connecting pipe on the inner wall of connecting pipe, the circumference position hoop of following the second air supply pipe is provided with the connecting strip on the outer wall of second air supply pipe, the connecting strip be used for sliding connection in the connecting groove, the second air supply pipe passes through the connecting groove and the connecting strip rotates to be connected in the connecting pipe.
Through adopting above-mentioned technical scheme, the setting of connecting groove and connecting block can make the second air supply pipe rotate to be connected in the connecting pipe to the setting of connecting groove and connecting block can play sealed effect to the clearance between connecting pipe and the second air supply pipe, prevents that NMP gas from running out along the clearance between connecting pipe and the second air supply pipe when ventilating.
The present invention in a preferred example may be further configured to: the end part of each air outlet pipe, which is far away from the exhaust pipe, is fixedly provided with a sealing cover, the whole sealing cover is arranged in a cone shape, and a plurality of air outlet holes are uniformly formed in the arc surface of the cone-shaped sealing cover.
By adopting the technical scheme, the arrangement of the sealing cover and the air outlet can ensure that NMP gas entering the air outlet pipe can be dispersed into a plurality of strands again, so that the contact effect between the NMP gas and water is improved, and the dissolving effect of the NMP gas in the water is further improved; the sealing cover arranged in the conical shape is adopted, so that NMP gas entering the gas outlet pipe is dispersed, the NMP gas can further and uniformly pass through water at the bottom of the tower body, and the dissolving effect of the gas dissolved in the water is further improved.
The present invention in a preferred example may be further configured to: spray set includes the delivery pipe that sets up with moisturizing pipe intercommunication, the delivery pipe includes first delivery pipe and the perpendicular second delivery pipe that sets up with first delivery pipe, first delivery pipe is mutual intercommunication setting with moisturizing pipe, evenly be provided with a plurality of drain pipes, every along the circumference position of second delivery pipe on the second delivery pipe the drain pipe all is mutual intercommunication setting with the second delivery pipe, the drain pipe evenly is provided with a plurality of atomising heads along the length direction of drain pipe on adsorption equipment's the face.
Through adopting above-mentioned technical scheme, the setting up of a plurality of drain pipes and a plurality of atomising heads can make water by even spraying to the tower body in to make water can be even spray to adsorption equipment on, thereby indirectly improved the gaseous dissolving effect of dissolving in the aquatic of NMP when passing through adsorption equipment, and the setting up of adopting the atomising head has improved the contact effect between NMP gas and the water, thereby further improved the dissolving effect of NMP gas dissolution in the aquatic.
The present invention in a preferred example may be further configured to: the utility model discloses a tower body, including water replenishing pipe, drain pipe, circulating pipe, moisturizing pipe and drain pipe, be provided with the circulating pipe between water replenishing pipe and the drain pipe and be located the tower body outside, the both ends of circulating pipe are the intercommunication setting with water replenishing pipe and drain pipe respectively, be provided with the tubing pump on the circulating pipe, the tip that the tower body was kept away from to water replenishing pipe and drain pipe all is provided with pneumatic valve.
Through adopting above-mentioned technical scheme, the water that gets into to the gaseous at first accessible tower body bottom of NMP in the tower body through the intake pipe dissolves for the first time, when the water of tower body bottom needs to be used once more, accessible tubing pump carries the water of tower body bottom to spray set in, through a plurality of atomising heads once more with water blowout, accomplishes the second time of NMP gas and water and dissolves for water can further reach the saturated condition.
In summary, the invention includes at least one of the following beneficial technical effects:
the motor can drive the sector gear and rotate, sector gear can be intermittent type this moment and the running gear meshing, make the running gear drive the axis of rotation and resist the elasticity rotation of spring, the second air supply pipe can drive a plurality of outlet ducts and blast pipe and stir the water of tower body bottom this moment, when sector gear and running gear break away from the meshing relation, the axis of rotation can resist the elasticity of spring and drive a plurality of outlet ducts and blast pipe antiport and resume the normal position, the effect of stirring can be played to the water of tower body bottom to the setting of a plurality of outlet ducts and a plurality of blast pipes, the gaseous dissolving speed of dissolving in aqueous of NMP has been accelerated, thereby the dissolving effect of NMP dissolving in aqueous has been improved, thereby the setting of a plurality of blast pipes can make NMP gaseous being cut apart into the even water that passes through the tower body bottom of multistrand, thereby the dissolving effect of gaseous dissolving in aqueous has further been improved.
Drawings
FIG. 1 is a schematic view showing an exploded structure of a first magnet bar and a second magnet bar;
FIG. 2 is a schematic view of a half-section structure for showing a drain pipe, an outlet pipe and a spray device;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure, 1, a frame body; 11. a tower body; 111. a liquid storage cavity; 112. an adsorption chamber; 113. a spray chamber; 12. an adsorption device; 13. a spraying device; 14. an air inlet pipe; 141. a first gas supply pipe; 142. a second gas supply pipe; 143. an exhaust pipe; 144. an air outlet pipe; 145. a one-way valve; 146. a connecting pipe; 147. connecting grooves; 148. a connecting strip; 149. sealing the cover; 1491. an air outlet; 15. a liquid outlet pipe; 151. a circulation pipe; 152. a pipeline pump; 153. a pneumatic valve; 16. a water replenishing pipe; 161. a first water supply pipe; 162. a second water supply pipe; 163. a drain pipe; 164. a spray head; 17. a rotating shaft; 171. a rotating gear; 172. a motor; 173. a sector gear; 174. a spring; 175. a protective cover; 176. a trough body; 177. a first magnet bar; 178. a second magnet bar.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
With reference to fig. 1 and 2, the NMP waste liquid recovery device disclosed by the invention comprises a frame body 1, wherein a tower body 11 is arranged on the frame body 1, the tower body 11 sequentially comprises a liquid storage cavity 111, an adsorption cavity 112 and a spraying cavity 113 from bottom to top, an adsorption device 12 is arranged in the tower body 11 and at the position of the adsorption cavity 112, and a spraying device 13 is arranged in the tower body 11 and at the position of the spraying cavity 113; in the present application, the adsorption device 12 is a prior art, and the detailed structure thereof is not described again.
Referring to fig. 1 and 2, an air inlet pipe 14 and a liquid outlet pipe 15 are arranged on the outer wall of the tower body 11 and are communicated with the tower body 11 at the position where the liquid storage cavity 111 is located, the air inlet pipe 14 and the liquid outlet pipe 15 are respectively located on the opposite surfaces of the tower body 11, and the air inlet pipe 14 and the liquid outlet pipe 15 are both located on the side wall of the tower body 11 and are located at the position close to the bottom of the tower body 11.
Referring to fig. 1 and 2, a water supply pipe 16 connected to the tower body 11 is provided at a position on the tower body 11 where the spray chamber 113 is located, in order to supply water into the spray device 13.
As shown in fig. 2, in order to uniformly spray water to the adsorption device 12, the spray device 13 includes a water supply pipe communicated with the water replenishing pipe 16, the water supply pipe includes a first water supply pipe 161 and a second water supply pipe 162 perpendicular to the first water supply pipe 161, the first water supply pipe 161 and the water replenishing pipe 16 are communicated with each other, a plurality of water discharge pipes 163 are uniformly provided on the second water supply pipe 162 along a circumferential direction of the second water supply pipe 162, each water discharge pipe 163 is communicated with the second water supply pipe 162, and a plurality of spray heads 164 are uniformly provided on a surface of the water discharge pipe 163 facing the adsorption device 12 along a length direction of the water discharge pipe 163.
Referring to fig. 1 and 2, in order to circularly pump water at the bottom of the tower body 11 into the water replenishing pipe 16, a circulating pipe 151 is disposed between the water replenishing pipe 16 and the liquid outlet pipe 15 and outside the tower body 11, two ends of the circulating pipe 151 are respectively communicated with the water replenishing pipe 16 and the liquid outlet pipe 15, a pipe pump 152 is disposed on the circulating pipe 151, and pneumatic valves 153 are disposed at end portions of the water replenishing pipe 16 and the liquid outlet pipe 15 far away from the tower body 11.
The NMP gas entering the tower body 11 through the air inlet pipe 14 firstly passes through the water at the bottom of the tower body 11, part of the NMP gas can be directly dissolved in the water, the circulating pipe 151 is opened through the water, the water with the NMP gas dissolved at the bottom of the tower body 11 is extracted into the water replenishing pipe 16, the water is sprayed out through the plurality of spray heads 164 on the water discharging pipe 163, the water with the NMP gas dissolved is uniformly sprayed onto the adsorption device 12, the NMP gas after rising through the air inlet pipe 14 can be dissolved in the water through the adsorption device 12 again, and therefore the dissolving effect of the NMP gas dissolved in the water is improved.
With reference to fig. 2 and fig. 3, in order to improve the dissolving effect of the NMP gas entering the air inlet pipe 14 dissolved in the water at the bottom of the tower body 11, an air supply pipe is arranged at the end of the air inlet pipe 14 in the tower body 11 and communicated with the air inlet pipe 14, the end of the air supply pipe far away from the air inlet pipe 14 extends towards the center of the bottom of the tower body 11, the air supply pipe comprises a first air supply pipe 141 and a second air supply pipe 142 vertically arranged with the first air supply pipe 141, the first air supply pipe 141 and the air inlet pipe 14 are arranged in a mutually communicated manner, a plurality of exhaust pipes 143 are uniformly arranged on the second air supply pipe 142 along the circumferential position of the second air supply pipe 142, each exhaust pipe 143 is arranged in a mutually communicated manner with the second air supply pipe 142, and the exhaust pipes 143 are uniformly arranged on the surface facing the adsorption device 12 along the length direction of the exhaust pipes 143.
As shown in fig. 3, in order to prevent water in the tower body 11 from flowing backward into the inlet pipe 14 through the outlet pipe 143, a check valve 145 is provided in each outlet pipe 144.
The setting of a plurality of blast pipes 143 and a plurality of outlet duct 144 can make the gaseous evenly distributed of NMP in the bottom of tower body 11, and the gaseous accessible a plurality of outlet ducts 144 of NMP that get into by intake pipe 14 are dispersed for the gaseous aquatic that can be evenly located the tower body 11 bottom through a plurality of blast pipes 143 of NMP passes through, thereby has improved the dissolving effect of gaseous dissolving in aquatic.
With reference to fig. 2 and 3, in order to further disperse the NMP gas entering the exhaust pipe 143 again, so as to further improve the contact effect between the NMP gas and water, and thus improve the dissolving effect of the NMP gas in water, a sealing cover 149 is fixedly disposed at an end portion of each exhaust pipe 144 away from the exhaust pipe 143, the whole sealing cover 149 is disposed in a conical shape, and a plurality of air outlet holes 1491 are uniformly formed in an arc surface of the conical sealing cover 149.
Referring to fig. 2 and 3, a connection pipe 146 is disposed on the first air supply pipe 141 at a position where an end of the second air supply pipe 142 is located, and the second air supply pipe 142 is rotatably connected to the connection pipe 146.
Referring to fig. 2 and 3, a connection groove 147 is circumferentially formed in an inner wall of the connection pipe 146 along a circumferential position of the connection pipe 146, a connection bar 148 is circumferentially arranged on an outer wall of the second gas supply pipe 142 along the circumferential position of the second gas supply pipe 142, the connection bar 148 is slidably connected to the connection groove 147, and the second gas supply pipe 142 is rotatably connected to the connection pipe 146 through the connection groove 147 and the connection bar 148.
In the present embodiment, in combination with fig. 2 and 3, in order to improve the sealing effect of the connection block in the connection groove 147 and prevent a part of gas from escaping along the gap between the second gas supply pipe 142 and the connection pipe 146, the connection groove 147 is formed in a "T" shape in cross section, and the connection block is fitted with the "T" shaped connection groove 147.
Referring to fig. 1 and fig. 2, in order to drive the second air supply pipe 142 to rotate on the connection pipe 146, so that the second air supply pipe 142 can drive the plurality of air outlet pipes 144 and the plurality of air outlet pipes 143 to rotate at the bottom of the tower body 11, a driving member for driving the second air supply pipe 142 to drive the plurality of air outlet pipes 143 to rotate is disposed at the bottom of the tower body 11.
Combine fig. 2 and fig. 3, wear to establish and rotate on the diapire of tower body 11 and be connected with axis of rotation 17, the tip that axis of rotation 17 is located tower body 11 and the tip fixed connection of second air supply pipe 142, the driving piece is including the cover establish and fixed connection in axis of rotation 17 be located the rotating gear 171 on the tip outside tower body 11, on the outer wall of tower body 11 and be located the fixed motor 172 that is provided with in bottom of tower body 11, the cover is established and fixedly connected with is used for when rotating with rotating gear 171 intermittent type engaged's sector gear 173 on the drive end of motor 172.
In this embodiment, in order to prevent water at the bottom of the tower body 11 from flowing out through the gap between the rotating shaft 17 and the tower body 11, the rotating shaft 17 is rotatably connected to the tower body 11 by using a rotary seal, which is a commonly used technique known to those skilled in the art, and the detailed structure thereof is not described in detail in this embodiment.
When needing second air supply pipe 142 to drive a plurality of blast pipes 143 and outlet duct 144 and rotate, drive sector gear 173 through motor 172 and continuously rotate, sector gear 173 can intermittent type and the meshing of rotating gear 171 this moment, thereby make sector gear 173 drive rotating gear 171 intermittent type and rotate, make a plurality of blast pipes 143 and a plurality of outlet duct 144 can stir the water of tower body 11 bottom, improve the dissolving effect of gas dissolution in aqueous this moment, and when sector gear 173 breaks away from the meshing with rotating gear 171, second air supply pipe 142 can stop rotating, the rotatory water in tower body 11 bottom can be blockked by a plurality of blast pipes 143 and outlet duct 144 this moment, cause the aquatic of tower body 11 bottom to produce and swash, thereby the dissolving effect of gas dissolution in aqueous has further been improved.
Referring to fig. 2 and 3, in order to further enable the second air supply pipe 142 to drive the plurality of air outlet pipes 144 and the plurality of air outlet pipes 143 to stir the water at the bottom of the tower body 11 back and forth, a spring 174 is disposed on the outer wall of the tower body 11 at the position of the rotating shaft 17, the spring 174 is sleeved on the rotating shaft 17, one end of the spring 174 is fixedly connected to the outer wall of the tower body 11, and the other end of the spring is fixedly connected to the rotating gear 171.
When the sector gear 173 is engaged with the rotating gear 171, the rotating gear 171 can drive the rotating shaft 17 to rotate against the elastic force of the spring 174, so that the exhaust pipes 143 and the exhaust pipes 144 can stir the water at the bottom of the tower body 11, and after the sector gear 173 is disengaged from the rotating gear 171, the rotating shaft 17 can restore to the original position against the elastic force of the spring 174, so that the rotating shaft 17 drives the exhaust pipes 143 and the exhaust pipes 144 to rotate reversely, so that the exhaust pipes 143 and the exhaust pipes 144 have the back-and-forth stirring effect on the water at the bottom of the tower body 11, and the dissolving effect of the gas dissolved in the water is further improved.
Referring to fig. 2 and 3, in order to prevent the rotary gear 171 and the driving gear from being exposed to the outside to rust, a protective cover 175 is provided on an outer wall of the tower body 11 at positions where the rotary gear 171, the sector gear 173, and the motor 172 are located, and the rotary gear 171, the sector gear 173, and the motor 172 are located within the protective cover 175.
Combine fig. 1 and fig. 3, in order to dismantle protection cover 175 and be connected to on the tower body 11, thereby conveniently to rotating gear 171 and drive gear maintenance and change, personally submit the opening setting at protection cover 175 towards the tower body 11, on the tower body 11 and be located the position at protection cover 175 place and offer the cell body 176 that is used for supplying the opening edge immigration of protection cover 175, the fixed first magnet strip 177 that is provided with in the cell body 176 along the circumference position of cell body 176, the opening edge of protection cover 175 is provided with and is used for the second magnet strip 178 with first magnet strip 177 absorption.
In other embodiments, a flange may be provided at the edge of the opening of the protection cover 175, and a bolt screwed into the tower body 11 is inserted into the flange, so as to accomplish the detachable connection of the protection cover 175.
The implementation principle of the embodiment is as follows: when the NMP gas is required to be dissolved in water to form NMP liquid, firstly, the NMP gas is introduced into the gas inlet pipe 14 along the gas inlet pipe 14, at the same time, the sector gear 173 is driven by the motor 172 to rotate, at this time, the sector gear 173 can be intermittently meshed with the rotating gear 171, so that the rotating gear 171 drives the rotating shaft 17 to rotate against the elastic force of the spring 174, the NMP gas entering the gas outlet pipe 143 can be dispersed through the plurality of gas outlet pipes 144, the NMP gas entering the gas outlet pipe 143 can be dispersed again into the water at the bottom of the tower body 11 through the gas outlet holes 1491 on the cover 149, at the same time, the second gas supply pipe 142 can drive the plurality of gas outlet pipes 144 and the plurality of gas outlet pipes 143 to stir the water at the bottom of the tower body 11, so that the NMP gas is dissolved in the water, when the sector gear 173 is disengaged with the rotating gear 171, the rotating shaft 17 can drive the plurality of gas outlet pipes 144 and the gas outlet pipes 143 to reversely rotate to return to the original position, the arrangement of the plurality of air outlet pipes 144 and the plurality of air outlet pipes 143 can achieve the effect of repeated stirring on the water at the bottom of the tower body 11, so that NMP gas can be dispersed into multiple strands of water which uniformly enters the bottom of the tower body 11, the dissolving effect of the NMP gas dissolved in the water is improved, the dissolving speed of the NMP gas dissolved in the water is accelerated by stirring the water at the bottom of the tower body 11, the dissolving effect of the NMP gas dissolved in the water is further improved, the water with part of the NMP gas dissolved at the bottom of the tower body 11 can be circulated into the water replenishing pipe 16 again by opening the pipeline pump 152, the water is sprayed out to the adsorption device 12 through the plurality of spray heads 164, the part of the NMP gas in the water at the bottom of the tower body 11 can be dissolved in the water on the adsorption device 12 again after rising, the water can flow to the bottom of the tower body 11 after reaching a saturated state, and is discharged through the liquid outlet pipe 15 to enter the next process.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (7)
1. The utility model provides a NMP waste liquid recovery unit, includes support body (1), be provided with tower body (11) on support body (1), tower body (11) is by supreme stock solution chamber (111), absorption chamber (112) and spray chamber (113) down of including in proper order, the position that just is located absorption chamber (112) place in tower body (11) is provided with adsorption equipment (12), just be located the position that sprays chamber (113) place in tower body (11) and be provided with spray set (13), the position that just is located stock solution chamber (111) place on the outer wall of tower body (11) is provided with intake pipe (14) and drain pipe (15) with tower body (11) intercommunication, on tower body (11) and be located the position that sprays chamber (113) place and be provided with moisturizing pipe (16) that set up with tower body (11) intercommunication, its characterized in that: the tip that intake pipe (14) are located tower body (11) is provided with the air supply pipe with intake pipe (14) intercommunication, the air supply pipe is kept away from the tip of intake pipe (14) and is located to extend the setting towards the center of tower body (11) bottom, the air supply pipe includes first air supply pipe (141) and second air supply pipe (142) with first air supply pipe (141) perpendicular setting, first air supply pipe (141) are intercommunication setting each other with intake pipe (14), the circumference position along second air supply pipe (142) on second air supply pipe (142) evenly is provided with a plurality of blast pipes (143), every blast pipe (143) all are intercommunication setting each other with second air supply pipe (142), blast pipe (143) evenly are provided with a plurality of outlet ducts (144) along the length direction of blast pipe (143) on the face of adsorption equipment (12), every all be provided with check valve (145) in outlet duct (144), a connecting pipe (146) is arranged on the first air supply pipe (141) and at the position of the end part of the second air supply pipe (142), the second air supply pipe (142) is rotatably connected to the connecting pipe (146), and a driving part for driving the second air supply pipe (142) to drive the exhaust pipes (143) to rotate is arranged at the bottom of the tower body (11); the tower is characterized in that a rotating shaft (17) penetrates through the bottom wall of the tower body (11) and is connected with the bottom wall of the tower body (11) in a rotating mode, the end portion, located in the tower body (11), of the rotating shaft (17) is fixedly connected with the end portion of the second air supply pipe (142), the driving piece comprises a rotating gear (171) which is sleeved on and fixedly connected with the end portion, located outside the tower body (11), of the rotating shaft (17), a motor (172) is fixedly arranged on the outer wall of the tower body (11) and located at the bottom of the tower body (11), and a sector gear (173) which is used for being intermittently meshed with the rotating gear (171) during rotation is sleeved on and fixedly connected to the driving end of the motor (172); the outer wall of the tower body (11) is provided with a spring (174) at the position where the rotating shaft (17) is located, the rotating shaft (17) is sleeved with the spring (174), one end of the spring (174) is fixedly connected to the outer wall of the tower body (11), and the other end of the spring is fixedly connected to the rotating gear (171).
2. The NMP waste liquid recovery device according to claim 1, characterized in that: the outer wall of tower body (11) is gone up and is located the position at rotating gear (171), sector gear (173) and motor (172) place and be provided with safety cover (175), rotating gear (171), sector gear (173) and motor (172) all are located safety cover (175).
3. An NMP waste liquid recovery apparatus according to claim 2, characterized in that: protection cover (175) are personally submitted the opening setting towards tower body (11), on tower body (11) and be located the position at protection cover (175) place and offer slot body (176) that are used for supplying the opening edge immigration of protection cover (175), along the fixed first magnet strip (177) that is provided with in slot body (176) circumference position, the opening edge of protection cover (175) is provided with and is used for with the second magnet strip (178) that first magnet strip (177) adsorb.
4. The NMP waste liquid recovery device according to claim 1, characterized in that: connecting groove (147) have been seted up to the circumferential position hoop along connecting pipe (146) on the inner wall of connecting pipe (146), the circumferential position hoop along second air supply pipe (142) is provided with connecting strip (148) on the outer wall of second air supply pipe (142), connecting strip (148) be used for sliding connection in connecting groove (147), second air supply pipe (142) rotate through connecting groove (147) and connecting strip (148) and are connected in connecting pipe (146).
5. The NMP waste liquid recovery device according to claim 1, characterized in that: each end part of the air outlet pipe (144) far away from the exhaust pipe (143) is fixedly provided with a sealing cover (149), the whole sealing cover (149) is arranged in a cone shape, and a plurality of air outlet holes (1491) are uniformly formed in the arc surface of the cone-shaped sealing cover (149).
6. The NMP waste liquid recovery device according to claim 1, characterized in that: spray set (13) include the delivery pipe that sets up with moisturizing pipe (16) intercommunication, the delivery pipe includes first delivery pipe (161) and second delivery pipe (162) with first delivery pipe (161) perpendicular setting, first delivery pipe (161) are intercommunication setting each other with moisturizing pipe (16), the circumference position along second delivery pipe (162) on second delivery pipe (162) evenly is provided with a plurality of drain pipes (163), every drain pipe (163) all are intercommunication setting each other with second delivery pipe (162), drain pipe (163) evenly are provided with a plurality of atomising heads (164) along the length direction of drain pipe (163) on the face towards adsorption equipment (12).
7. The NMP waste liquid recovery device according to claim 1, characterized in that: between moisturizing pipe (16) and drain pipe (15) and be located tower body (11) and be provided with circulating pipe (151) outward, the both ends of circulating pipe (151) are the intercommunication setting with moisturizing pipe (16) and drain pipe (15) respectively, be provided with tubing pump (152) on circulating pipe (151), the tip that tower body (11) were kept away from in moisturizing pipe (16) and drain pipe (15) all is provided with pneumatic valve (153).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413817.7A CN111545017B (en) | 2020-05-15 | 2020-05-15 | NMP waste liquid recovery device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010413817.7A CN111545017B (en) | 2020-05-15 | 2020-05-15 | NMP waste liquid recovery device |
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| CN111545017A CN111545017A (en) | 2020-08-18 |
| CN111545017B true CN111545017B (en) | 2022-02-15 |
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| CN113634091B (en) * | 2021-08-21 | 2023-07-25 | 杭州航民江东热电有限公司 | Coal-fired thermoelectric flue gas whitening and purifying treatment device |
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| CN206391830U (en) * | 2016-12-24 | 2017-08-11 | 山东滨庆新能源开发有限公司 | One kind is used for chlorine gas dissolving device for epoxypropane production |
| CN208032249U (en) * | 2018-02-05 | 2018-11-02 | 深圳市永驰环保设备有限公司 | A kind of exhaust gas packed tower |
| CN208292746U (en) * | 2018-03-05 | 2018-12-28 | 杭州智仁建筑工程有限公司 | A kind of sewage treatment aeration tank of multiple agitation |
| CN208553652U (en) * | 2018-08-08 | 2019-03-01 | 福建宸润生物科技有限公司 | A kind of medical treatment consumptive materials workshop emission-control equipment |
| CN109260899A (en) * | 2018-09-20 | 2019-01-25 | 深圳市中科智诚科技有限公司 | A kind of uniform adjustable spray column of air flow method |
| CN208911773U (en) * | 2018-10-11 | 2019-05-31 | 苏州市环境科学研究所(苏州市环境保护宣传教育中心) | A kind of paint spray booth VOCs emission-control equipment |
| CN210287185U (en) * | 2019-07-18 | 2020-04-10 | 深圳市百瑞空气处理设备有限公司 | NMP recovery processing system |
| KR102085226B1 (en) * | 2019-11-26 | 2020-03-05 | 이금순 | Fine dust reduction system for outdoor installation |
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