CN219156574U

CN219156574U - Waste water recovery device

Info

Publication number: CN219156574U
Application number: CN202222533593.0U
Authority: CN
Inventors: 王衍旺
Original assignee: Ningbo Smart Pharmaceutical Co ltd
Current assignee: Ningbo Smart Pharmaceutical Co ltd
Priority date: 2022-09-21
Filing date: 2022-09-21
Publication date: 2023-06-09
Anticipated expiration: 2032-09-21

Abstract

The utility model relates to a waste water recovery device belongs to liquid waste recycling field technical field, and it includes extraction tower and distillation column, the inside reaction chamber that has of extraction tower, the extraction tower in be equipped with ceramic packing layer in the reaction chamber, the extraction tower outside be equipped with first inlet, second inlet, first liquid outlet and the second liquid outlet of reaction chamber intercommunication, first inlet is located ceramic packing layer upside, the second inlet is located ceramic packing layer downside, first liquid outlet is located first inlet upside, the second liquid outlet is located second inlet downside; the distillation tower is internally provided with a distillation chamber, the outer side of the distillation tower is provided with a feed inlet communicated with the distillation chamber, and the feed inlet is communicated with the second liquid inlet. The method has the effect of improving the recovery rate of DMF.

Description

Waste water recovery device

Technical Field

The application relates to the field of liquid waste recycling, in particular to a waste water recycling device.

Background

DMF (N, N-dimethylformamide) is a colorless transparent liquid, has strong polarity and low toxicity, can be mixed with water, alcohol, ester, ketone, ether, unsaturated hydrocarbon and aromatic hydrocarbon, is called as universal solvent, and is widely applied to the fields of petrochemical industry, organic synthesis, pharmacy, pesticide, synthetic fiber, artificial leather and the like, so that a large amount of DMF wastewater can be generated in the chemical production process.

At present, a common DMF recovery method in industry is to remove water by rectification and then purify DMF by rectification.

With respect to the related art, the inventors consider that the energy consumption is large because a large amount of water needs to be vaporized during the operation, especially more water needs to be removed by rectification when the DMF content is low. If some soluble salt is doped in DMF waste water, when more water is removed, the soluble salt is crystallized due to the rapid reduction of the solubility of the soluble salt, so that the kettle temperature is rapidly increased, and DMF is decomposed to a certain extent in the presence of water after the temperature exceeds 90 ℃, so that the recovery rate of DMF is lower.

Disclosure of Invention

In order to improve DMF's rate of recovery, this application provides a waste water recovery unit.

The application provides a waste water recovery device adopts following technical scheme:

the utility model provides a waste water recovery device, includes extraction tower and distillation column, the inside reaction chamber that has of extraction tower, the extraction tower in be equipped with the ceramic packing layer in the reaction chamber, the extraction tower outside be equipped with the first inlet, second inlet, first liquid outlet and the second liquid outlet of reaction chamber intercommunication, first inlet is located ceramic packing layer upside, the second inlet is located ceramic packing layer downside, first liquid outlet is located first inlet upside, the second liquid outlet is located second inlet downside;

the distillation tower is internally provided with a distillation chamber, the outer side of the distillation tower is provided with a feed inlet communicated with the distillation chamber, and the feed inlet is communicated with the second liquid inlet.

Through adopting above-mentioned technical scheme, will contain DMF waste water and pour into from the second inlet, pour into chloroform from first inlet, contain DMF waste water and chloroform mixed extraction and take out DMF chloroform solution, produce partial waste water after the extraction, because waste water density is greater than DMF chloroform solution, waste water is discharged from first outlet, DMF chloroform solution enters into the distillation column from second outlet, remove chloroform by distillation (chloroform's boiling point is less than DMF), and then the pure DMF solvent is retrieved to DMF, improve DMF's rate of recovery.

Optionally, the ceramic filler layer is provided with a through hole, and the through hole is obliquely arranged.

Through adopting above-mentioned technical scheme, through setting up the through-hole on the ceramic packing layer to the slope form, increased the distance that contains DMF waste water and chloroform through the ceramic packing layer, make and contain DMF waste water and chloroform fully react, improved extraction effect.

Optionally, the ceramic packing layer is provided with a plurality of, and a plurality of ceramic packing layers are arranged at intervals along the height direction of the reaction chamber.

Through adopting above-mentioned technical scheme, through setting up a plurality of ceramic packing layers in the reaction chamber, contain DMF waste water and chloroform all need carry out abundant reaction in ceramic packing layer through a plurality of ceramic packing layers, improved extraction effect.

Optionally, the ceramic packing layer upside is provided with first regulation pole, the ceramic packing layer is kept away from one side of first regulation pole is provided with the second regulation pole, the second is adjusted the pole and is kept away from the one end of ceramic packing layer has been seted up the groove that slides.

Through adopting above-mentioned technical scheme, through setting up first regulation pole and second regulation pole, accessible first regulation pole and second regulation pole each other slide between two adjacent ceramic packing layers to adjust the clearance between two adjacent ceramic packing layers, with the extraction tower of adaptation not co-altitude, and steerable contains DMF waste water and chloroform and pass through the time of ceramic packing layer, thereby improved extraction effect.

Optionally, the first adjusting rod circumference side wall is provided with a screw thread portion, and the second adjusting rod circumference side wall is provided with a screw thread groove matched with the screw thread portion.

Through adopting above-mentioned technical scheme, when the clearance of two adjacent ceramic packing layers needs to be adjusted, the accessible rotates the second and adjusts the pole, because the second adjusts pole threaded connection in the thread groove, makes the second adjust the pole to keeping away from first regulation pole and be close to the direction of first regulation pole to adjust the clearance of adjacent ceramic packing layer.

Optionally, a positioning block is disposed on a side wall of the ceramic packing layer at the uppermost layer, and a positioning groove for inserting the positioning block is formed in the side wall of the reaction chamber in the extraction tower.

Through adopting above-mentioned technical scheme, when installing ceramic packing layer, can insert a plurality of ceramic packing layers in the reaction chamber simultaneously, the locating piece on upside ceramic packing layer inserts in the constant head tank to fix ceramic packing layer, need not fix a plurality of ceramic packing layers respectively, made things convenient for the fixing of ceramic packing layer.

Optionally, the extraction tower in the constant head tank lateral wall has seted up the fixed slot, the sliding is provided with the fixed block in the fixed slot, the fixed block with be provided with the spring between the tank bottom of fixed slot, the spring will fixed block part fixed slot notch extrusion, fixed block bulge butt the locating piece upside.

By adopting the technical scheme, as the liquid flows in the reaction chamber, the liquid impacts the ceramic packing layer, so that the ceramic packing layer shakes, and the positioning block is separated from the positioning groove. According to the scheme, the fixing block is arranged, the spring is arranged between the fixing block and the bottom of the fixing groove, the fixing block is pressed out to one side far away from the bottom of the fixing groove by the spring, and the fixing block is abutted against the positioning block, so that the positioning block cannot be separated from the positioning groove, and the ceramic packing layer is fixed more stably.

Optionally, a guide surface is disposed on a side of the fixed block away from the spring, and the guide surface is disposed obliquely toward the insertion direction of the positioning block.

Through adopting above-mentioned technical scheme, when the locating piece inserts in the constant head tank, locating piece butt guide surface for the fixed block slides into the fixed slot, does not need in manual impressing the fixed block in the fixed slot, has made things convenient for the fixed of ceramic packing layer.

Optionally, a filter element is disposed in the first liquid inlet of the extraction tower.

By adopting the technical scheme, the subsequent extraction effect is poor due to the fact that the DMF wastewater contains impurities. According to the scheme, the filter piece is arranged and is used for filtering the DMF wastewater, so that the subsequent extraction effect is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a wastewater recovery device is characterized in that an extraction tower, a distillation tower and a ceramic packing layer are arranged, wastewater containing DMF is injected from a first liquid inlet, chloroform is injected from a second liquid inlet, the wastewater containing DMF and chloroform react in a reaction chamber, the ceramic packing layer enables the wastewater containing DMF and chloroform to fully react, DMF chloroform solution is extracted, the DMF chloroform solution enters the distillation tower from a second liquid outlet, chloroform is distilled and removed, and pure DMF solvent is obtained and recovered;

2. the waste water recovery device is provided with a first adjusting rod and a second adjusting rod, the distance between the connected ceramic packing layers can be adjusted, and extraction towers with different heights can be adapted;

3. a waste water recovery device is provided with a fixing block and a spring, so that the ceramic packing layer is more stable to fix, and the ceramic packing layer is more convenient to install.

Drawings

FIG. 1 is a schematic view of a construction of a wastewater reclamation apparatus;

FIG. 2 is a cross-sectional view of the wastewater reclamation apparatus;

FIG. 3 is a schematic structural view of a ceramic filler layer;

FIG. 4 is a cross-sectional view of an extraction column;

fig. 5 is an enlarged view of a portion a in fig. 4.

Reference numerals illustrate: 1. an extraction column; 11. a tower top; 111. a first lumen; 112. a first liquid outlet; 1121. a first liquid outlet pipe; 12. a tower body; 121. a reaction chamber; 1211. a positioning groove; 12111. a fixing groove; 1212. a bearing groove; 122. a first liquid inlet; 1221. a first liquid inlet pipe; 123. a second liquid inlet; 1231. a second liquid inlet pipe; 12311. a filter; 13. a bottom of the tower; 131. a second lumen; 132. a second liquid outlet; 1321. a second liquid outlet pipe; 2. a distillation column; 21. a distillation chamber; 22. a feed inlet; 23. an air outlet; 3. a ceramic filler layer; 31. a filler block; 311. a through hole; 32. a first adjusting lever; 321. a threaded portion; 322. a tray; 33. a second adjusting lever; 331. a slip groove; 3311. a thread groove; 34. a positioning block; 35. a bearing block; 4. a fixed block; 41. a guide surface; 5. and (3) a spring.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-5.

The embodiment of the application discloses a wastewater recovery device.

Referring to fig. 1, the wastewater recovery apparatus includes an extraction column 1 and a distillation column 2. The DMF-containing wastewater can be extracted by the extraction tower 1, DMF chloroform solution is extracted, the DMF chloroform solution is distilled by the distillation tower 2, chloroform is distilled off, and pure DMF solvent is further obtained.

The extraction column 1 comprises a top 11, a body 12 and a bottom 13. The tower top 11, the tower body 12 and the tower bottom 13 are all cylindrical, and the tower body 12 is arranged between the tower top 11 and the tower bottom 13. The tower top 11 is internally provided with a first inner cavity 111, the tower bottom 13 is internally provided with a second inner cavity 131, and the tower body 12 is internally provided with a reaction chamber 121 communicated with the first inner cavity 111 and the second inner cavity 131. In this embodiment, the tower top 11, the tower body 12, and the tower bottom 13 are integrally formed.

The diameter of the top 11 and bottom 13 of the tower is greater than the diameter of the body 12. The floor area of the tower bottom 13 is large, and the extraction tower 1 can be well supported. The diameter of the tower body 12 is smaller than that of the tower top 11 and the tower bottom 13, so that the flowing speed of the liquid in the reaction chamber 121 can be increased, the full reaction can be performed, and the extraction effect can be improved.

Referring to fig. 2, a first liquid inlet 122 and a second liquid inlet 123 communicating with the reaction chamber 121 are formed in the outer side wall of the tower body 12. The first liquid inlet 122 and the second liquid inlet 123 are located on the same side of the tower body 12, and the first liquid inlet 122 is located on the upper side of the second liquid inlet 123. The tower body 12 is provided with a first liquid inlet pipe 1221 at an opening of the first liquid inlet 122, and the first liquid inlet pipe 1221 is used for transporting chloroform into the reaction chamber 121. The tower body 12 is provided with the second feed liquor pipe 1231 in the opening part of second inlet 123, and second feed liquor pipe 1231 is used for transporting waste water to reaction chamber 121 in, and coaxial mounting has filter 12311 in the second feed liquor pipe 1231, and filter 12311 can filter the waste water that contains DMF, filters the part impurity in the waste water that contains DMF to improve subsequent extraction effect, preferably, in this implementation filter 12311 preferably sets up to the filter screen, and the filter screen passes through the bolt to be installed in second feed liquor pipe 1231. In this embodiment, the first inlet pipe 1221 and the second inlet pipe 1231 are welded to the outer side wall of the tower body 12.

The tower body 12 is provided with a ceramic packing layer 3 in the reaction chamber 121, the ceramic packing layer 3 is provided with a plurality of ceramic packing layers 3, and the plurality of ceramic packing layers 3 are arranged at intervals along the height direction of the reaction chamber 121.

Referring to fig. 3, the ceramic filler layer 3 includes a plurality of filler blocks 31, and adjacent filler blocks 31 are fastened by snap-fit. The filler block 31 is provided with a plurality of through holes 311, the through holes 311 penetrate through the other side wall of the filler block 31, and the through holes 311 are obliquely arranged. The inclined arrangement of the through holes 311 can increase the speed of liquid passing, so that the reaction is more sufficient, and the extraction effect is improved.

Referring to fig. 2, a first adjusting rod 32 is disposed on a side of the ceramic packing layer 3 close to the first inner cavity 111, a second adjusting rod 33 is disposed on a side of the ceramic packing layer 3 far away from the first inner cavity 111, a sliding groove 331 is formed on a side of the second adjusting rod 33 far away from the ceramic packing layer 3, a threaded portion 321 is disposed on a peripheral wall of the first adjusting rod 32, and a threaded groove 3311 matched with the threaded portion 321 is formed on a peripheral wall of the sliding groove 331 by the second adjusting rod 33. The two adjacent ceramic filler layers 3 are connected through a first adjusting rod 32 and a second adjusting rod 33. The distance between two adjacent ceramic packing layers 3 can be adjusted by rotating the first adjusting rod 32/the second adjusting rod 33 so as to adapt to the extraction towers 1 with different heights. In the present embodiment, the ceramic filler layer 3, the first adjusting lever 32, and the second adjusting lever 33 are integrally formed.

Referring to fig. 4 and 5, a tray 322 is integrally and coaxially provided on a circumferential side wall of the first adjusting lever 32, the tray 322 is located at a lower side of the ceramic packing layer 3, and the tray 322 lifts the ceramic packing layer 3. The side wall of the ceramic packing layer 3 positioned at the uppermost part is provided with two positioning blocks 34, the connecting line between the two positioning blocks 34 passes through the axle center of the ceramic packing layer 3, the tower body 12 is provided with a positioning groove 1211 for the sliding insertion of the positioning blocks 34 at the opening of the reaction chamber 121, the bottom of the positioning groove 1211 limits the positioning blocks 34, the positioning blocks 34 cannot slide downwards continuously, and therefore the ceramic packing layer 3 is fixed, and the rest ceramic packing layers 3 are connected end to end due to the setting of the first adjusting rod 32 and the second adjusting rod 33. The side wall of the ceramic packing layer 3 positioned at the lowest part is provided with bearing blocks 35, the bearing blocks 35 are provided with two blocks, a connecting line between the two bearing blocks 35 passes through the axle center of the ceramic packing layer 3, the tower body 12 is provided with a bearing groove 1212 for sliding and inserting the bearing blocks 35 at the opening of the reaction chamber 121, and the bottom of the bearing groove 1212 limits the bearing blocks 35, so that the bearing blocks 35 cannot continuously slide downwards, and the ceramic packing layer 3 is fixed.

The tower body 12 is vertically provided with a fixed groove 12111 at the groove wall of the positioning groove 1211, a fixed block 4 is slidably arranged in the fixed groove 12111, a spring 5 is arranged between the fixed block 4 and the groove bottom of the fixed groove 12111, one end of the spring 5 is welded at the groove bottom of the fixed groove 12111, and the fixed block 4 is welded at one end of the spring 5 far away from the groove bottom of the fixed groove 12111. The spring 5 extrudes the fixed block 4, so that part of the fixed block 4 slides out of the notch of the fixed groove 12111, and the sliding-out part of the fixed block 4 abuts against the positioning block 34, so that the positioning block 34 cannot slide along the length direction of the positioning groove 1211, and the ceramic packing layer 3 is fixed more stably.

Referring to fig. 5, the fixed block 4 is provided at one end thereof remote from the spring 5 with a guide surface 41, and the guide surface 41 is inclined toward the insertion direction of the positioning block 34. When the positioning block 34 is inserted into the positioning groove 1211 and abuts against the guide surface 41, the fixing block 4 is slid into the fixing groove 12111, and the fixing block 4 does not need to be manually pressed into the fixing groove 12111, so that the ceramic filler layer 3 can be conveniently fixed.

Referring to fig. 2, a first liquid outlet 112 is formed in a side wall of the tower top 11, and the first liquid outlet 112 is communicated with the first inner cavity 111. The tower top 11 is provided with a first liquid outlet pipe 1121 at the opening of the first liquid outlet 112, and DMF-containing wastewater and chloroform react to form DMF chloroform solution and wastewater, and because the density of the wastewater is less than that of the DMF chloroform solution, the wastewater flows upwards and flows out of the first liquid outlet pipe 1121 of the motor car. In this embodiment, the first liquid outlet pipe 1121 is welded to the side wall of the tower top 11.

The side wall of the tower bottom 13 is provided with a second liquid outlet 132, and the second liquid outlet 132 is communicated with the second inner cavity 131. The bottom 13 is provided with a second liquid outlet pipe 1321 at the opening of the second liquid outlet 132. The distillation column 2 is internally provided with a distillation chamber 21, the outer side wall of the distillation column 2 is provided with a feed inlet 22 which is mutually communicated with the distillation chamber 21, and one end of the second liquid inlet pipe 1231, which is far away from the bottom 13 of the column, is arranged on the side wall of the distillation column 2 and is mutually communicated with the feed inlet 22.

Since the density of the DMF chloroform solution is greater than that of the wastewater, the DMF chloroform solution flows downward and flows into the distillation column 2 from the second liquid inlet pipe 1231.

Referring to fig. 2, an air outlet 23 is formed at the top end of the distillation tower 2, the distillation tower 2 distills the DMF chloroform solution to obtain chloroform and DMF solution, the chloroform is discharged from the air outlet 23, and the DMF solution is left in the distillation tower 2, so that pure DMF solution is obtained.

The implementation principle of the wastewater recovery device in the embodiment of the application is as follows: the waste water containing DMF is input into the reaction chamber 121 from the second liquid inlet pipe 1231, chloroform is input into the reaction chamber 121 from the first liquid inlet pipe 1221, the chloroform and the waste water containing DMF are fully reacted in the ceramic packing material layer 3 to form DMF chloroform solution and waste water, the waste water can only be discharged from the first liquid outlet pipe 1121 due to the fact that the density of the waste water is smaller than that of the DMF chloroform solution, the DMF chloroform solution is input into the distillation tower 2 from the second liquid outlet pipe 1321, the DMF chloroform solution is distilled by the distillation tower 2 to form chloroform and DMF solution, and the chloroform is discharged from the air outlet 23 to leave pure DMF solution.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. A wastewater reclamation device, characterized in that: the device comprises an extraction tower (1) and a distillation tower (2), wherein a reaction chamber (121) is arranged in the extraction tower (1), a ceramic packing layer (3) is arranged in the reaction chamber (121) in the extraction tower (1), a first liquid inlet (122), a second liquid inlet (123), a first liquid outlet (112) and a second liquid outlet (132) which are communicated with the reaction chamber (121) are arranged on the outer side of the extraction tower (1), the first liquid inlet (122) is positioned on the upper side of the ceramic packing layer (3), the second liquid inlet (123) is positioned on the lower side of the ceramic packing layer (3), the first liquid outlet (112) is positioned on the upper side of the first liquid inlet (122), and the second liquid outlet (132) is positioned on the lower side of the second liquid inlet (123).

The distillation tower (2) is internally provided with a distillation chamber (21), a feed inlet (22) communicated with the distillation chamber (21) is arranged on the outer side of the distillation tower (2), and the feed inlet (22) is mutually communicated with the second liquid inlet (123).

2. A wastewater reclamation apparatus as recited in claim 1, wherein: the ceramic filler layer (3) is provided with a through hole (311), and the through hole (311) is obliquely arranged.

3. A wastewater reclamation apparatus as recited in claim 2, wherein: the ceramic packing layers (3) are arranged in a plurality, and the ceramic packing layers (3) are arranged at intervals along the height direction of the reaction chamber (121).

4. A wastewater reclamation device as recited in claim 3, further comprising: the ceramic packing layer (3) upside is provided with first regulation pole (32), one side that ceramic packing layer (3) kept away from first regulation pole (32) is provided with second regulation pole (33), second regulation pole (33) are kept away from one end of ceramic packing layer (3) has seted up sliding groove (331).

5. A wastewater reclamation apparatus as recited in claim 4, wherein: the first adjusting rod (32) is provided with a screw thread part (321) on the peripheral side wall, and the second adjusting rod (33) is provided with a screw thread groove (3311) matched with the screw thread part (321) on the peripheral side wall of the sliding groove (331).

6. A wastewater reclamation apparatus as recited in claim 1, wherein: the side wall of the ceramic packing layer (3) positioned at the uppermost layer is provided with a positioning block (34), and the side wall of the reaction chamber (121) of the extraction tower (1) is provided with a positioning groove (1211) for inserting the positioning block (34).

7. A wastewater reclamation apparatus as recited in claim 6, wherein: the extraction tower (1) is characterized in that a fixed groove (12111) is formed in the side wall of the positioning groove (1211), a fixed block (4) is slidably arranged in the fixed groove (12111), a spring (5) is arranged between the fixed block (4) and the bottom of the fixed groove (12111), the spring (5) presses out the notch of part of the fixed groove (12111) of the fixed block (4), and the protruding part of the fixed block (4) is abutted to the upper side of the positioning block (34).

8. A wastewater reclamation apparatus as recited in claim 7, wherein: the side of the fixed block (4) far away from the spring (5) is provided with a guide surface (41), and the guide surface (41) is obliquely arranged towards the insertion direction of the positioning block (34).

9. A wastewater reclamation apparatus as recited in claim 1, wherein: the extraction tower (1) is provided with a filter element (12311) in the first liquid inlet (122).