CN214115128U - Low-temperature deamination tower top water purification treatment system - Google Patents
Low-temperature deamination tower top water purification treatment system Download PDFInfo
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- CN214115128U CN214115128U CN202023222065.0U CN202023222065U CN214115128U CN 214115128 U CN214115128 U CN 214115128U CN 202023222065 U CN202023222065 U CN 202023222065U CN 214115128 U CN214115128 U CN 214115128U
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Abstract
The utility model relates to a low-temperature deamination tower top water purification treatment system, which comprises a neutralization kettle, a filter group and a reverse osmosis membrane group, wherein the neutralization kettle is provided with an input port and an output port, the filter group is provided with a liquid inlet end and a liquid outlet end, the reverse osmosis membrane group is provided with an input end and an output end, the output port of the neutralization kettle is connected with the liquid inlet end of the filter group through a first connecting pipe, the first connecting pipe is provided with a booster pump, the liquid outlet end of the filter group is connected with the input end of the reverse osmosis membrane group, one side of the reverse osmosis membrane group is provided with a collecting tank, the output end of the reverse osmosis membrane group is communicated with the collecting tank, the filter group comprises a multi-medium filter, an activated carbon filter and a precision filter which are connected in sequence, the reverse osmosis membrane group comprises a first membrane group and a second membrane group which are connected in sequence, compared with the prior art, the utility model can remove dimethylamine and other impurities in tower top water, and can be filtered for a plurality of times, good purifying effect and long service life.
Description
Technical Field
The utility model relates to a low temperature deamination top of tower water purification treatment system.
Background
In the process of refining DMF, an intermediate substance, namely Dimethylamine (DMA), can be generated by hydrolysis, and dimethylamine is a main pollutant of a synthetic tannery, is a toxic compound, has malodor, can stimulate olfactory organs of people, causes unpleasant feeling to the human body and worsens the working environment. Dimethylamine is an organic base, is easily soluble in water, has alkaline aqueous solution, and has long trouble in environmental protection of tanneries due to dimethylamine-containing wastewater. In order to recover DMF in the production wastewater, DMF in the wastewater is recovered by a rectifying tower to generate top water containing dimethylamine, wherein the top water also contains a small amount of impurities such as low-boiling point organic matters, and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low temperature deamination top of tower water purification treatment system that can get rid of dimethylamine and other impurity in the top of tower aquatic not enough to prior art exists, purifying effect is good, long service life.
The technical scheme of the utility model is realized like this: the utility model provides a low temperature deamination top of tower water purification treatment system, includes neutralization kettle, filter group, reverse osmosis membrane group, its characterized in that: be equipped with input port and delivery outlet on the neutralization kettle, be equipped with the feed liquor end on the filter group and go out the liquid end, be equipped with input and output on the reverse osmosis membrane group, neutralization kettle delivery outlet is connected with the feed liquor end of filter group through first connecting pipe, be equipped with the booster pump on the first connecting pipe, the filter group goes out the liquid end and is connected with reverse osmosis membrane group input through the second connecting pipe, reverse osmosis membrane group one side is equipped with the collection tank, reverse osmosis membrane group output passes through connecting pipe and collection tank intercommunication, filter group is including many medium filter, activated carbon filter, the precision filter who connects gradually through the third connecting pipe, reverse osmosis membrane group is including first membrane group and the second membrane group that connects gradually through the fourth connecting pipe.
By adopting the technical scheme, the tower top water containing dimethylamine is led into the neutralization kettle through the input port on the neutralization kettle, the industrial hydrochloric acid is added into the neutralization kettle for reaction, the aqueous solution of the dimethylamine is alkaline, the industrial hydrochloric acid can be neutralized with the aqueous solution of the dimethylamine to obtain the hydrochloride of the dimethylamine, the neutralization kettle is internally provided with the pH detector, the pH value of the solution in the neutralization kettle can be detected through the pH detector, when the solution in the neutralization kettle is neutral, the reaction is finished, the booster pump is started after the reaction is finished, the mixed solution is led into the multi-media filter through the first connecting pipe, the multi-media filter selects filter materials with various specifications as the filler, the filler has stronger mechanical degree and adsorbability, can intercept suspended matters, silt, colloid, humus and the like in the water, and the solution filtered by the multi-media filter is led into the activated carbon filter through the third connecting pipe, the activated carbon filter can further mechanically intercept and remove suspended matters and colloids through cleaning, so as to adsorb and separate microorganisms and organic matters, and can adsorb color and flavor, the solution filtered by the activated carbon filter is guided into the precision filter through another third connecting pipe, the precision filter is the last protection of the solution entering a reverse osmosis membrane group, fine particles can be generated due to friction in the filtering process of the multi-media filter and the activated carbon filter, the precision filter is used for filtering the fine particles, the solution in the precision filter is guided into the reverse osmosis membrane group through a second connecting pipe after the filtering is finished, the reverse osmosis membrane group consists of a first membrane group and a second membrane group, the solution firstly passes through the first membrane group and then passes through the second membrane group, dimethylamine hydrochloride in the solution can be removed by the reverse osmosis membrane group, the solution filtered by the reverse osmosis membrane group is guided into a collecting tank through the connecting pipe from the output end of the reverse osmosis membrane group and collected, compared with the prior art, the utility model discloses can get rid of dimethylamine and other impurity in the top of the tower aquatic, there is corresponding filtration many times, purifying effect is good.
The utility model discloses further set up to: the first membrane group and the second membrane group are formed by arranging RO membranes in parallel, and the quantity ratio of the RO membranes in the first membrane group to the RO membranes in the second membrane group is 6: 3.
through adopting above-mentioned technical scheme, first membrane group is mainly parallelly connected by 6 RO membranes and forms, and the second membrane group is parallelly connected by 3 RO membranes and forms, is connected through the fifth connecting pipe between first membrane group and the second membrane group, and solution gets into first reposition of redundant personnel behind the reverse osmosis membrane group and becomes 6 parts and filters through 6 RO membranes of first membrane group, then the confluence becomes 3 parts and filters through 3 RO membranes of second membrane group, can reduce the pressure of RO membrane, prolongs the life of RO membrane.
The utility model discloses further set up to: the multi-media filter and the activated carbon filter are connected with backwashing pipes, one side of each backwashing pipe is provided with a backwashing medium box, one ends of the two backwashing pipes are communicated with the inner walls of the multi-media filter and the activated carbon filter respectively, one ends of the two backwashing pipes, which are far away from the multi-media filter and the activated carbon filter, are communicated with the backwashing medium boxes, and the backwashing pipes are provided with backwashing pumps.
Through adopting above-mentioned technical scheme, fill the backwash medium in the backwash medium case, the filter capacity of filter material reaches the saturation after many media filter and active carbon filter operate a period, start the backwash pump this moment, backwash medium in the backwash medium case passes through the backwash pipe and gets into many media filter and active carbon filter under the effect of backwash pump, carry out the backwash to many media filter and active carbon filter and resume its performance, the backwash can adopt the mode that large-traffic water and gas wash combined together, in order to guarantee the cleaning performance, the design velocity of flow is 10 m/h.
The utility model discloses further set up to: reverse osmosis membrane group one side is equipped with membrane group and washs case and collection box, be equipped with on the reverse osmosis membrane group and wash the input port and wash the delivery outlet, the membrane group washs the case and passes through the washing input port connection of scavenge pipe with reverse osmosis membrane group, be equipped with the scavenging pump on the scavenge pipe, it passes through contact tube and collection box intercommunication to wash the delivery outlet.
By adopting the technical scheme, the operating pressure of the reverse osmosis membrane group is generally 1.3-1.8MPa, the reverse osmosis membrane group can be polluted by certain pollutants which are difficult to wash away after long-term operation, such as long-term trace salt scaling and accumulation of organic matters to cause the performance reduction of the reverse osmosis membrane group, the operating pressure is improved, therefore, chemical medicines are added into the membrane group cleaning box to clean the reverse osmosis membrane group so as to recover the normal desalting and water production capacities, generally, the reverse osmosis membrane group is cleaned once every 2-4 months, each cleaning month lasts for 1-2 hours, a cleaning pump is started during cleaning, under the action of the cleaning pump, a cleaning agent in the membrane group cleaning box enters the reverse osmosis membrane group from a cleaning inlet through a cleaning pipe to be cleaned, the cleaning agent after cleaning is conveyed from a cleaning outlet to a recovery box through a delivery pipe to be collected and recycled, is more environment-friendly.
The utility model discloses further set up to: a reboiler is arranged between the filter group and the reverse osmosis membrane group.
Through adopting above-mentioned technical scheme, contain some low boiling organic matters in the solution after filter group filters, the reboiler can be carried out reboiling to the solution and get rid of these organic matters, has further promoted the filter effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
The labels in the figures are:
1-neutralization kettle, 2-filter group, 201-multi-media filter, 202-activated carbon filter, 203-precision filter, 3-reverse osmosis membrane group, 4-booster pump, 5-collection tank, 6-backwashing pipe, 7-backwashing media box, 8-backwashing pump, 9-membrane group cleaning box, 10-recovery box, 11-cleaning pipe, 12-delivery pipe, 13-cleaning pump and 14-reboiler.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in figure 1, the utility model discloses a low temperature deamination top of tower water purification treatment system, including neutralization kettle 1, filter group 2, reverse osmosis membrane group 3 the utility model discloses in the embodiment: be equipped with input port and delivery outlet on the neutralization cauldron 1, be equipped with the feed liquor end on the filter group 2 and go out the liquid end, be equipped with input and output on the reverse osmosis membrane group 3, the 1 delivery outlet of neutralization cauldron is connected with 2 feed liquor ends of filter group through first connecting pipe, be equipped with booster pump 4 on the first connecting pipe, 2 play liquid ends of filter group are connected with 3 inputs of reverse osmosis membrane group through the second connecting pipe, 3 one sides of reverse osmosis membrane group are equipped with collection tank 5, 3 outputs of reverse osmosis membrane group pass through connecting pipe and 5 intercommunications of collection tank, filter group 2 includes many medium filter 201, activated carbon filter 202, precision filter 203 that connect gradually through the third connecting pipe, reverse osmosis membrane group 3 includes first membrane group and the second membrane group that connect gradually through the fourth connecting pipe.
By adopting the technical scheme, the top water containing dimethylamine is introduced into the neutralization kettle 1 through the input port on the neutralization kettle 1, the industrial hydrochloric acid is added into the neutralization kettle 1 for reaction, the industrial hydrochloric acid can be neutralized with the aqueous solution of dimethylamine due to the alkalinity of the aqueous solution of dimethylamine, dimethylamine hydrochloride is obtained, the neutralization kettle 1 is internally provided with a pH detector, the pH value of the solution in the neutralization kettle 1 can be detected through the pH detector, when the solution in the neutralization kettle 1 is neutral, the reaction is finished, the booster pump 4 is started after the reaction is finished, the mixed solution is introduced into the multi-media filter 201 through the first connecting pipe, the multi-media filter 201 selects filter materials with various specifications as the filler, the filler has stronger mechanical degree and adsorbability, suspended matters, silt, colloid, humus and the like in the water can be intercepted, the solution filtered by the multi-media filter 201 is introduced into the activated carbon filter 202 through the third connecting pipe, the activated carbon filter 202 can further mechanically intercept suspended matters and colloids and remove the suspended matters and the colloids through cleaning, microorganisms and organic matters are adsorbed and separated, color and flavor can be adsorbed, the solution filtered by the activated carbon filter 202 is guided into the precision filter 203 through another third connecting pipe, the precision filter 203 is the last protection of the solution entering a permeable membrane group, fine particles can be generated due to friction in the filtering process of the multi-medium filter 201 and the activated carbon filter 202, the precision filter 203 is used for filtering the fine particles, the solution in the precision filter 203 is guided into the reverse osmosis membrane group 3 through a second connecting pipe after the filtering is finished, the reverse osmosis membrane group 3 consists of a first membrane group and a second membrane group, the solution firstly passes through the first membrane group and then passes through the second membrane group, dimethylamine hydrochloride in the solution can be removed by the reverse osmosis membrane group 3, and the solution filtered by the reverse osmosis membrane group 3 is guided into and collected from the output end of the reverse osmosis membrane group 3 through the connecting pipe Collect in jar 5, compare with prior art, the utility model discloses can get rid of dimethylamine and other impurity in the top of the tower aquatic, have corresponding filtration many times, purifying effect is good.
In the embodiment of the present invention: the first membrane group and the second membrane group are formed by arranging RO membranes in parallel, and the quantity ratio of the RO membranes in the first membrane group to the RO membranes in the second membrane group is 6: 3.
through adopting above-mentioned technical scheme, first membrane group is mainly parallelly connected by 6 RO membranes and forms, the second membrane group is parallelly connected by 3 RO membranes and forms, be connected through the fifth connecting pipe between first membrane group and the second membrane group, solution gets into first reposition of redundant personnel behind the reverse osmosis membrane group 3 and becomes 6 parts and filters through 6 RO membranes of first membrane group, then 3 parts of 3 RO membranes that pass through the second membrane group of confluence filtration, can reduce the pressure of RO membrane, the life of extension RO membrane.
In the embodiment of the present invention: the multi-media filter 201 and the activated carbon filter 202 are both connected with backwashing pipes 6, one side of each backwashing pipe 6 is provided with a backwashing media tank 7, one ends of the two backwashing pipes 6 are respectively communicated with the inner walls of the multi-media filter 201 and the activated carbon filter 202, one ends of the two backwashing pipes 6, which are far away from the multi-media filter 201 and the activated carbon filter 202, are both communicated with the backwashing media tanks 7, and the backwashing pipes 6 are provided with discovery pumps 8.
By adopting the technical scheme, the backwashing medium is filled in the backwashing medium box 7, the filtering capacity of the filter material of the multi-medium filter 201 and the activated carbon filter 202 is saturated after the multi-medium filter 201 and the activated carbon filter 202 operate for a period of time, the discovery pump 8 is started at the moment, the backwashing medium in the backwashing medium box 7 enters the multi-medium filter 201 and the activated carbon filter 202 through the backwashing pipe 6 under the action of the discovery pump 8, the performance of the multi-medium filter 201 and the activated carbon filter 202 is recovered by backwashing, the backwashing can adopt a mode of combining large-flow water and gas washing to ensure the cleaning effect, and the design working flow rate is 10 m/h.
In the embodiment of the present invention: 3 one side of reverse osmosis membrane group is equipped with membrane group and washs case 9 and collection box 10, be equipped with on the reverse osmosis membrane group 3 and wash the input port and wash the delivery outlet, membrane group washs case 9 and is connected through the washing input port of scavenge pipe 11 with reverse osmosis membrane group 3, be equipped with scavenging pump 13 on the scavenge pipe 11, wash the delivery outlet and pass through contact tube 12 and collection box 10 intercommunication.
By adopting the technical scheme, the operating pressure of the reverse osmosis membrane group 3 is generally 1.3-1.8MPa, and after the reverse osmosis membrane group 3 runs for a long time, the reverse osmosis membrane group 3 can be polluted by certain pollutants which are difficult to wash away, such as long-term trace salt scaling and accumulation of organic matters to cause the performance reduction of the reverse osmosis membrane group 3, the operating pressure is improved, therefore, chemical medicines are added into the membrane group cleaning box 9 to clean the reverse osmosis membrane group 3 so as to recover the normal desalting and water production capacities, generally, the cleaning is carried out once every 2-4 months, each cleaning month lasts for 1-2 hours, the cleaning pump 13 is started during cleaning, under the action of the cleaning pump 13, the cleaning agent in the membrane group cleaning box 9 enters the reverse osmosis membrane group 3 from the cleaning input port through the cleaning pipe 11 to be cleaned, the cleaning agent after the cleaning is conveyed to the recovery box 10 through the delivery pipe 12 to be collected, the cleaning agent is recycled, so that the cleaning agent is more environment-friendly.
In the embodiment of the present invention: a reboiler 14 is arranged between the filter group 2 and the reverse osmosis membrane group 3.
Through adopting above-mentioned technical scheme, contain some low boiling organic matters in the solution after filter group 2 filters, reboiler 14 can be to solution reboiling and get rid of these organic matters, has further promoted the filter effect.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The utility model provides a low temperature deamination top of tower water purification treatment system, includes neutralization kettle (1), filter bank (2), reverse osmosis membrane group (3), its characterized in that: an input port and an output port are arranged on the neutralization kettle (1), a liquid inlet end and a liquid outlet end are arranged on the filter group (2), the reverse osmosis membrane group (3) is provided with an input end and an output end, the output port of the neutralization kettle (1) is connected with the liquid inlet end of the filter group (2) through a first connecting pipe, the first connecting pipe is provided with a booster pump (4), the liquid outlet end of the filter group (2) is connected with the input end of the reverse osmosis membrane group (3) through a second connecting pipe, a collecting tank (5) is arranged on one side of the reverse osmosis membrane group (3), the output end of the reverse osmosis membrane group (3) is communicated with the collecting tank (5) through a connecting pipe, the filter group (2) comprises a multi-medium filter (201), an activated carbon filter (202) and a precision filter (203) which are sequentially connected through a third connecting pipe, the reverse osmosis membrane group (3) comprises a first membrane group and a second membrane group which are sequentially connected through a fourth connecting pipe.
2. The low-temperature deamination tower top water purification treatment system as claimed in claim 1, wherein: the first membrane group and the second membrane group are formed by arranging RO membranes in parallel, and the quantity ratio of the RO membranes in the first membrane group to the RO membranes in the second membrane group is 6: 3.
3. the low-temperature deamination tower top water purification treatment system as claimed in claim 1, wherein: the multi-media filter (201) and the activated carbon filter (202) are connected with backwashing pipes (6), one side of each backwashing pipe (6) is provided with a backwashing media box (7), one ends of the two backwashing pipes (6) are communicated with the inner walls of the multi-media filter (201) and the activated carbon filter (202) respectively, one ends of the two backwashing pipes (6), far away from the multi-media filter (201) and the activated carbon filter (202), are communicated with the backwashing media boxes (7), and backwashing pumps (8) are arranged on the backwashing pipes (6).
4. A low temperature de-amine overhead water purification treatment system according to any one of claims 1 to 3, wherein: reverse osmosis membrane group (3) one side is equipped with membrane group and washs case (9) and collection box (10), be equipped with on reverse osmosis membrane group (3) and wash the input port and wash the delivery outlet, membrane group washs case (9) and is connected through the washing input port of scavenge pipe (11) and reverse osmosis membrane group (3), be equipped with cleaning pump (13) on scavenge pipe (11), it communicates with collection box (10) through eduction tube (12) to wash the delivery outlet.
5. A low temperature de-amine overhead water purification treatment system according to any one of claims 1 to 3, wherein: a reboiler (14) is arranged between the filter group (2) and the reverse osmosis membrane group (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023222065.0U CN214115128U (en) | 2020-12-28 | 2020-12-28 | Low-temperature deamination tower top water purification treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023222065.0U CN214115128U (en) | 2020-12-28 | 2020-12-28 | Low-temperature deamination tower top water purification treatment system |
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| CN214115128U true CN214115128U (en) | 2021-09-03 |
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| CN202023222065.0U Active CN214115128U (en) | 2020-12-28 | 2020-12-28 | Low-temperature deamination tower top water purification treatment system |
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