CN220424764U - DMF solvent recovery device - Google Patents
DMF solvent recovery device Download PDFInfo
- Publication number
- CN220424764U CN220424764U CN202321855440.6U CN202321855440U CN220424764U CN 220424764 U CN220424764 U CN 220424764U CN 202321855440 U CN202321855440 U CN 202321855440U CN 220424764 U CN220424764 U CN 220424764U
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- China
- Prior art keywords
- filter
- pipe
- preheating
- dmf
- solvent recovery
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- 238000011084 recovery Methods 0.000 title claims abstract description 30
- 239000002904 solvent Substances 0.000 title claims abstract description 19
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000003860 storage Methods 0.000 claims description 22
- 238000007789 sealing Methods 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 7
- 239000011550 stock solution Substances 0.000 abstract description 7
- 238000000746 purification Methods 0.000 abstract description 6
- 241000220317 Rosa Species 0.000 abstract description 5
- 239000012535 impurity Substances 0.000 abstract description 5
- 239000002918 waste heat Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 96
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 3
- KAKZBPTYRLMSJV-UHFFFAOYSA-N Butadiene Chemical compound C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 2
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000002166 wet spinning Methods 0.000 description 1
Landscapes
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model provides a DMF solvent recovery device which comprises a filter device, wherein a recovery structure is arranged in the filter device, a liquid inlet pipe and a liquid outlet pipe are arranged on the upper surface of the filter device, a preheating device is sleeved on the outer wall of the filter device, and an air outlet pipe and an air inlet pipe are respectively arranged on the outer walls of two sides of the preheating device. The utility model discloses a design filter equipment, recovery structure and waste heat device on DMF solvent recovery device, during the use, the feed liquor pipe is with DMF waste liquid injection rose box, and in DMF waste liquid flows into the second filter chamber by first stock solution chamber, filter by the filter screen realization, and flow into reation kettle under the effect of drain pipe, and when filtration ware filters a large amount of impurity of its filter screen on a period, during this moment staff's accessible carousel and connecting axle rotation tube, with another group of filter ware rotation with first stock solution chamber switch on, when not influencing DMF waste liquid filtration, can clear up the filter screen, improve the purification effect of DMF waste liquid when improving filtration efficiency.
Description
Technical Field
The utility model relates to the technical field of recovery devices, in particular to a DMF solvent recovery device.
Background
Dimethylformamide (DMF) is not only a widely used chemical raw material, but also an excellent solvent. Can be used for wet spinning of synthetic fibers such as polyacrylonitrile fibers and the like and synthesis of polyurethane; the method is used for manufacturing plastic films; the paint can also be removed as a paint remover; the method can also dissolve some pigments with low solubility, so that the pigments have the characteristics of dyes, the dimethylformamide can be used for aromatic extraction, butadiene is separated and recovered from C4 fraction, isoprene is separated and recovered from C5 fraction, and the method can also be used as an effective reagent for separating non-hydrocarbon components in paraffin.
The application number is 202122344294.8, and the low-temperature low-pressure high-purity DMF solvent recovery device is provided, and comprises DMF in coating process waste gas in textile industry, DMF is dissolved in water in a spraying mode, so that DMF solvent needs to be further recovered for preventing waste water from polluting the environment, and liquid in the reaction kettle is repeatedly stored in a manner of designing a plurality of groups of reaction kettles, so that purification concentration is guaranteed.
However, in the actual operation process, since the DMF waste liquid entering the reaction kettle is not filtered, impurities in the waste liquid can always exist in the purification process and cannot be removed in a distillation mode, so that the purification of subsequent DMF is affected.
Therefore, in order to solve the problems, we propose a DMF solvent recovery device.
Disclosure of Invention
The utility model aims to provide a DMF solvent recovery device to solve the problems set forth in the background art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: DMF solvent recovery unit, including filter equipment, filter equipment inside is provided with recovery structure, the filter equipment upper surface is provided with feed liquor pipe and drain pipe, the filter equipment outer wall cover is equipped with preheating device, preheating device's both sides outer wall is provided with outlet duct and intake pipe respectively, preheating device's one end is kept away from to the intake pipe one end is connected with reation kettle.
As a further description of the utility model: the filter device comprises a filter box, a filter cavity is formed in the filter box, the filter cavity is cylindrical, a first liquid storage cavity and a second liquid storage cavity are formed in two sides of the filter cavity in the filter box respectively, and the first liquid storage cavity, the filter cavity and the second liquid storage cavity are communicated.
As a further description of the utility model: the recovery structure comprises a rotating tube, sealing seats and filter dishes are circularly distributed on the side wall of the rotating tube, the sealing seats and the filter dishes are two groups, the sealing seats and the filter dishes are distributed in a staggered mode, a connecting shaft is fixedly arranged at the top of the rotating tube, and a turntable is fixedly arranged at one end, far away from the rotating tube, of the connecting shaft.
As a further description of the utility model: the filter is characterized in that a first through hole is formed in the rotating tube, a second through hole is formed in the side wall, far away from the rotating tube, of the filter, the first through hole and the second through hole are communicated with each other, a filter screen is fixedly arranged on the side wall, close to the rotating tube, of the filter, and a handle is fixedly arranged on the top of the filter.
As a further description of the utility model: the preheating device comprises a preheating box, the preheating box is sleeved on the outer wall of the filtering box, two groups of flow pipes are fixedly arranged on the front side wall and the rear side wall of the preheating box, communicating pipes are connected between the flow dividing pipes and the air outlet pipe and the air inlet pipe, and a plurality of groups of heating pipes which are distributed at equal intervals up and down are connected between the flow dividing pipes.
As a further description of the utility model: the liquid inlet pipe is communicated with the first liquid storage cavity, the liquid outlet pipe is communicated with the second liquid storage cavity, one end, away from the filter tank, of the liquid outlet pipe is communicated with the reaction kettle, and one end, away from the preheating tank, of the liquid outlet pipe is connected with a cooling tower.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model discloses a design filter equipment, recovery structure and waste heat device on DMF solvent recovery device, during the use, the feed liquor pipe is with DMF waste liquid injection rose box, and in DMF waste liquid flows into the second filter chamber by first stock solution chamber, filter by the filter screen realization, and flow into reation kettle under the effect of drain pipe, afterwards reation kettle heats the DMF waste liquid, vapor after the heating flows into in the heating pipe through the intake pipe, communicating pipe and shunt tubes, in order to preheat the rose box, realize waste heat recovery and utilize, and when filtration dish filters a large amount of impurity on its filter screen of a period, staff's accessible carousel and connecting axle rotation change pipe this moment, with rotatory and first stock solution chamber switch on of another group of filtration dish, when not influencing DMF waste liquid filtration, can clear up the filter screen, improve the purification effect of DMF waste liquid when improving filtration efficiency.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is a schematic view showing the internal structure of the filtering device of the present utility model;
FIG. 3 is a schematic view of a recycling structure according to the present utility model;
FIG. 4 is a schematic view of the internal structure of the filter bowl according to the present utility model;
fig. 5 is a schematic structural diagram of a preheating device according to the present utility model.
In the figure: 1. a filtering device; 101. a filter box; 102. a filter chamber; 103. a first reservoir; 104. a second reservoir; 2. a recovery structure; 201. a rotary tube; 202. a sealing seat; 203. filtering the dish; 204. a connecting shaft; 205. a turntable; 206. a first through hole; 207. a second through hole; 208. a filter screen; 209. a handle; 3. a liquid inlet pipe; 4. a liquid outlet pipe; 5. a preheating device; 501. a preheating box; 502. a shunt; 503. a communicating pipe; 504. heating pipes; 6. an air outlet pipe; 7. an air inlet pipe; 8. and (3) a reaction kettle.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, the present utility model provides a technical solution: DMF solvent recovery device, including filter equipment 1, filter equipment 1 inside is provided with recovery structure 2, and filter equipment 1 upper surface is provided with feed liquor pipe 3 and drain pipe 4, and filter equipment 1 outer wall cover is equipped with preheating device 5, and preheating device 5's both sides outer wall is provided with outlet duct 6 and intake pipe 7 respectively, and the one end that preheating device 5 was kept away from to intake pipe 7 is connected with reation kettle 8.
In this embodiment: the filtering device 1 comprises a filtering box 101, a filtering cavity 102 is formed in the filtering box 101, the filtering cavity 102 is cylindrical, a first liquid storage cavity 103 and a second liquid storage cavity 104 are formed in the filtering box 101 and located on two sides of the filtering cavity 102 respectively, and the first liquid storage cavity 103, the filtering cavity 102 and the second liquid storage cavity 104 are communicated.
The specific use is as follows: the first liquid storage cavity 103, the filter cavity 102 and the second liquid storage cavity 104 form a DMF waste liquid filter channel.
In this embodiment: the recovery structure 2 comprises a rotary pipe 201, sealing seats 202 and filter dishes 203 are circularly distributed on the side wall of the rotary pipe 201, the sealing seats 202 and the filter dishes 203 are two groups, the sealing seats and the filter dishes 203 are distributed in a staggered mode, a connecting shaft 204 is fixedly arranged at the top of the rotary pipe 201, and a turntable 205 is fixedly arranged at one end, far away from the rotary pipe 201, of the connecting shaft 204.
The specific use is as follows: the turntable 205 and the connecting shaft 204 can drive the rotary tube 201 to rotate under the external force so as to adjust the angles of the two groups of filter dishes 203, so that the filtration of DMF waste liquid is not affected when the filter screen 208 is cleaned.
In this embodiment: the inside first through-hole 206 that has seted up of rotation pipe 201, the second through-hole 207 has been seted up to the lateral wall that keeps away from rotation pipe 201 of filter dish 203, and first through-hole 206 and second through-hole 207 switch on each other, and the lateral wall fixed mounting that is close to rotation pipe 201 of filter dish 203 has filter screen 208, and filter dish 203 top fixed mounting has handle 209.
The specific use is as follows: DMF waste liquid may flow from the first liquid storage chamber 103 into the second liquid storage chamber 104 through the second through holes 207 and the first through holes 206, and the filtering of impurities is achieved by the filter screen 208 while passing through the second through holes 207 and the first through holes 206.
In this embodiment: the preheating device 5 comprises a preheating box 501, the preheating box 501 is sleeved on the outer wall of the filtering box 101, two groups of flow pipes 502 are fixedly arranged on the front side wall and the rear side wall of the preheating box 501, communicating pipes 503 are connected between the flow dividing pipes 502 and the air outlet pipe 6 and the air inlet pipe 7, and a plurality of groups of heating pipes 504 which are distributed at equal intervals up and down are connected between the two groups of flow pipes 502.
The specific use is as follows: the communicating pipe 503 is used for connecting the air inlet pipe 7 to guide the vapor in the reaction kettle 8 into the shunt pipe 502 and redistribute the vapor into the heating pipe 504 so as to preheat the filter tank 101.
In this embodiment: the liquid inlet pipe 3 is communicated with the first liquid storage cavity 103, the liquid outlet pipe 4 is communicated with the second liquid storage cavity 104, one end, far away from the filter tank 101, of the liquid outlet pipe 4 is communicated with the reaction kettle 8, and one end, far away from the preheating tank 501, of the gas outlet pipe 6 is connected with a cooling tower.
The specific use is as follows: the liquid inlet pipe 3 can inject external DMF waste liquid into the filter tank 101, the liquid outlet pipe 4 can inject filtered DMF waste liquid into the reaction kettle 8, and the gas outlet pipe 6 can recover heated vapor.
Working principle: during the use, through feed liquor pipe 3, pour into the rose box 101 with DMF waste liquid, the DMF waste liquid flows into filter chamber 102 through first stock solution chamber 103, and under the effect of filter dish 203 inside filter screen 208, realize filtering, and the DMF waste liquid after filtering flows into second stock solution chamber 104 through first through-hole 206 and second through-hole 207, and flow into reation kettle 8 under the effect of drain pipe 4, afterwards reation kettle 8 heats the DMF waste liquid, the steam after the heating flows into heating pipe 504 through intake pipe 7, communicating pipe 503 and shunt tubes 502, in order to preheat rose box 101, realize waste heat recovery and utilize, and when a large amount of impurity is adsorbed on its filter screen 208 of filter dish 203 filtration a period, the staff's accessible carousel 205 and connecting axle 204 rotatory rotor 201 at this moment, with another group's filter dish 203 rotatory switch on with first stock solution chamber 103, when not influencing the DMF waste liquid filtration, can clear up filter screen 208, improve the purification effect of DMF waste liquid when improving filtration efficiency.
Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some technical features thereof, and any modifications, equivalent substitutions, improvements and the like within the spirit and principles of the present utility model should be included in the scope of the present utility model.
Claims (6)
- Dmf solvent recovery unit, including filter equipment (1), its characterized in that: the utility model discloses a filter device, including filter device (1), air inlet pipe (7), outlet pipe (6) and intake pipe (7) are provided with recovery structure (2) inside, filter device (1) upper surface is provided with feed liquor pipe (3) and drain pipe (4), filter device (1) outer wall cover is equipped with preheating device (5), the both sides outer wall of preheating device (5) is provided with outlet duct (6) and intake pipe (7) respectively, the one end that preheating device (5) was kept away from to intake pipe (7) is connected with reation kettle (8).
- 2. The DMF solvent recovery apparatus of claim 1, wherein: the filtering device (1) comprises a filtering box (101), a filtering cavity (102) is formed in the filtering box (101), the filtering cavity (102) is cylindrical, a first liquid storage cavity (103) and a second liquid storage cavity (104) are formed in two sides, located inside the filtering cavity (102), of the filtering box (101), and the first liquid storage cavity (103), the filtering cavity (102) and the second liquid storage cavity (104) are communicated.
- 3. The DMF solvent recovery apparatus of claim 1, wherein: the recovery structure (2) comprises a rotating pipe (201), sealing seats (202) and filter dishes (203) are circularly arranged on the side wall of the rotating pipe (201), the sealing seats (202) and the filter dishes (203) are two groups, the sealing seats and the filter dishes (203) are distributed in a staggered mode, a connecting shaft (204) is fixedly arranged at the top of the rotating pipe (201), and a rotary table (205) is fixedly arranged at one end, far away from the rotating pipe (201), of the connecting shaft (204).
- 4. A DMF solvent recovery apparatus as claimed in claim 3, wherein: the filter is characterized in that a first through hole (206) is formed in the rotating tube (201), a second through hole (207) is formed in the side wall, far away from the rotating tube (201), of the filter dish (203), the first through hole (206) and the second through hole (207) are communicated with each other, a filter screen (208) is fixedly mounted on the side wall, close to the rotating tube (201), of the filter dish (203), and a handle (209) is fixedly mounted on the top of the filter dish (203).
- 5. The DMF solvent recovery apparatus of claim 2, wherein: the preheating device (5) comprises a preheating box (501), the preheating box (501) is sleeved on the outer wall of the filtering box (101), two groups of flow pipes (502) are fixedly arranged on the front side wall and the rear side wall of the preheating box (501), communicating pipes (503) are connected between each of the flow dividing pipes (502) and the air outlet pipe (6) and the air inlet pipe (7), and a plurality of groups of heating pipes (504) distributed at equal intervals are connected between the flow dividing pipes (502).
- 6. The DMF solvent recovery apparatus of claim 4, wherein: the liquid inlet pipe (3) is communicated with the first liquid storage cavity (103), the liquid outlet pipe (4) is communicated with the second liquid storage cavity (104), one end, away from the filter tank (101), of the liquid outlet pipe (4) is communicated with the reaction kettle (8), and one end, away from the preheating tank (501), of the liquid outlet pipe (6) is connected with a cooling tower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321855440.6U CN220424764U (en) | 2023-07-14 | 2023-07-14 | DMF solvent recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321855440.6U CN220424764U (en) | 2023-07-14 | 2023-07-14 | DMF solvent recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220424764U true CN220424764U (en) | 2024-02-02 |
Family
ID=89701040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321855440.6U Active CN220424764U (en) | 2023-07-14 | 2023-07-14 | DMF solvent recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220424764U (en) |
-
2023
- 2023-07-14 CN CN202321855440.6U patent/CN220424764U/en active Active
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| GR01 | Patent grant |