CN114011286A - Glue deposition liquid-residue separation method - Google Patents
Glue deposition liquid-residue separation method Download PDFInfo
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- CN114011286A CN114011286A CN202111347436.4A CN202111347436A CN114011286A CN 114011286 A CN114011286 A CN 114011286A CN 202111347436 A CN202111347436 A CN 202111347436A CN 114011286 A CN114011286 A CN 114011286A
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- 238000000926 separation method Methods 0.000 title claims abstract description 128
- 239000003292 glue Substances 0.000 title claims abstract description 88
- 230000008021 deposition Effects 0.000 title claims description 19
- 238000003756 stirring Methods 0.000 claims abstract description 106
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 86
- 239000007788 liquid Substances 0.000 claims abstract description 45
- 238000002156 mixing Methods 0.000 claims abstract description 37
- 239000000203 mixture Substances 0.000 claims abstract description 30
- 239000002910 solid waste Substances 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 19
- 239000007787 solid Substances 0.000 claims abstract description 18
- 238000001556 precipitation Methods 0.000 claims abstract description 15
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 48
- 238000007790 scraping Methods 0.000 claims description 29
- IWOUKMZUPDVPGQ-UHFFFAOYSA-N barium nitrate Chemical compound [Ba+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O IWOUKMZUPDVPGQ-UHFFFAOYSA-N 0.000 claims description 28
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 26
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 26
- 239000002699 waste material Substances 0.000 claims description 18
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 17
- 229920002401 polyacrylamide Polymers 0.000 claims description 16
- 239000004359 castor oil Substances 0.000 claims description 13
- 235000019438 castor oil Nutrition 0.000 claims description 13
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 claims description 13
- 238000005070 sampling Methods 0.000 claims description 13
- 239000011780 sodium chloride Substances 0.000 claims description 13
- 239000011259 mixed solution Substances 0.000 claims description 12
- 239000013049 sediment Substances 0.000 claims description 10
- 238000007599 discharging Methods 0.000 claims description 5
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000002920 hazardous waste Substances 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 20
- 238000007792 addition Methods 0.000 description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000004816 latex Substances 0.000 description 4
- 229920000126 latex Polymers 0.000 description 4
- 239000002893 slag Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000008394 flocculating agent Substances 0.000 description 2
- 229920002689 polyvinyl acetate Polymers 0.000 description 2
- 239000011118 polyvinyl acetate Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical group CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000005189 flocculation Methods 0.000 description 1
- 230000016615 flocculation Effects 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006116 polymerization reaction Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
Landscapes
- Separation Of Suspended Particles By Flocculating Agents (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the technical field of glue treatment, and particularly relates to a glue precipitation liquid-residue separation method. Aiming at the problems of high processing price and high production cost in the prior art, the invention provides a glue precipitation liquid-residue separation method, which comprises the steps of introducing mixed liquid to be separated mixed with glue into a stirring barrel; adding a pretreating agent into the stirring barrel, starting stirring, and mixing for 5-10 min; adding the treating agent into the stirring barrel under the stirring condition, heating to 50-70 ℃, and stirring for 20-40min to obtain a treated mixture; and transferring the treated mixture to separation equipment for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing hazardous waste treatment. The invention utilizes the pretreatment agent to carry out pretreatment, and then adds the treatment agent to promote the glue to be solidified and deposited, the treatment method is simple, and enterprises producing the glue mixture can utilize the method to carry out self-treatment, thereby effectively reducing the production cost of the enterprises.
Description
Technical Field
The invention belongs to the technical field of glue treatment, and particularly relates to a glue precipitation liquid-residue separation method.
Background
After the plate is glued, a large amount of glue, namely white latex, is arranged on the rubber roller, and the white latex/the thermoplastic adhesive prepared by the polymerization reaction of vinyl acetate monomer under the action of an initiator, the main component of the thermoplastic adhesive is polyvinyl acetate. The production line needs to regularly clean the rubber roller, and mixed liquid of white latex and water can be obtained after cleaning, and the mixed liquid can not be directly discharged. Enterprises in the prior art often need to be handed to a special environment-friendly treatment unit for treatment, and the treatment price is very high, so that the production cost is high.
For example, the chinese patent application discloses a comprehensive treatment method for waste glue [ application number: 201910333721.7]The invention patent application comprises the following steps: 1, collecting waste glue from a washing tank, conveying the waste glue into a chemical reaction pot, adding chloride accounting for 10-12% of the total amount of the waste glue into the chemical reaction pot, starting a stirrer to stir for 2-3min, and standing for more than 4 h; 2, according to the dosage ratio of the flocculating agent to the waste glue of 150-160 g: 1m3Adding a flocculating agent into the chemical reaction kettle, stirring for 5-8min again, standing for over 36h, layering the materials in the chemical reaction kettle, wherein the upper layer is a water layer, and the lower layer is precipitated slag; and 3, pumping the water layer out by a water pump and discharging into a sewage pipeline, conveying the sediment into a sediment treatment box through a slag discharging groove, simultaneously adding a curing agent into the sediment and uniformly stirring, then dehydrating the sediment by using a filter press to obtain a slag block, and finally drying the slag block.
The invention has the advantages of generating decomposition catalysis effect on glue molecules in waste glue and flocculation of molecular powder, and effectively purifying and separating a harmless water layer and easily-treated sediment, but the invention is not suitable for white latex of which the main component is polyvinyl acetate, so the problems are not solved.
Disclosure of Invention
The invention aims to solve the problems and provides a glue deposition liquid-residue separation method which can effectively deposit glue and effectively reduce the production cost of enterprises.
In order to achieve the purpose, the invention adopts the following technical scheme:
a glue precipitation liquid-residue separation method comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel;
step two: adding a pretreating agent into the stirring barrel, starting stirring, and mixing for 5-10 min;
step three: adding the treating agent into the stirring barrel under the stirring condition, heating to 50-70 ℃, and stirring for 20-40min to obtain a treated mixture;
step four: and (4) transferring the treated mixture obtained in the third step to separation equipment for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
In the glue deposition liquid-residue separation method, the pretreating agent comprises 6-10 parts by mass of sulfated castor oil, 2-4 parts by mass of ethanol and 0.1-0.5 part by mass of sodium chloride.
In the above glue deposition liquid-residue separation method, the pretreating agent comprises 8 parts by mass of sulfated castor oil, 3 parts by mass of ethanol and 0.3 part by mass of sodium chloride.
In the above-mentioned glue deposition liquid-residue separation method, the step two further comprises a step of preheating the mixed liquid to be separated before adding the pretreating agent, wherein the preheating temperature is 40-50 ℃.
In the above glue deposition liquid-residue separation method, the treating agent comprises polyaluminium chloride, a demulsifier, polyacrylamide, sodium hydroxide and barium nitrate.
In the glue deposition liquid-residue separation method, the treating agent comprises 10-20 parts by weight of polyaluminium chloride, 50-70 parts by weight of demulsifier, 0.5-2 parts by weight of polyacrylamide, 10-20 parts by weight of sodium hydroxide and 5-15 parts by weight of barium nitrate.
In the glue deposition liquid-residue separation method, the treating agent comprises, by mass, 15 parts of polyaluminum chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate.
In the above-mentioned glue deposition liquid-residue separation method, the stirring barrel includes a barrel body having a stirring space therein, the barrel body has a heating jacket outside the barrel body, the upper end of the barrel body has a feed inlet, the lower end of the barrel body has a discharge outlet, the feed inlet and the discharge outlet are both communicated with the stirring space, the stirring motor is fixedly disposed at the top end of the barrel body, one end of the stirring rod is drivingly connected to the stirring motor, the other end of the stirring rod extends into the stirring space, the side surface of the barrel body is further provided with a sampling port communicated with the stirring space, and the stop valve is disposed on the sampling port and switches the sampling port to be in an open state or a closed state.
In the above-mentioned glue deposition liquid-residue separation method, the separation apparatus includes a housing, a rotary separation barrel for solid-liquid separation is provided in the housing, a separation cavity is provided in the rotary separation barrel, a driving motor fixedly connected to the housing is drivingly connected to the rotary separation barrel, a feed pipe is fixedly connected to the housing, and one end of the feed pipe extends into the rotary separation barrel and is communicated with the separation cavity.
In the above-mentioned glue deposition liquid sediment separation method, the wall scraping component includes a wall scraping motor fixedly arranged at the top of the casing, the rotary separation barrel is connected with the outer wall of the wall scraping motor in a rotating and sealing manner, one end of an output shaft of the wall scraping motor extends into the separation cavity and is fixedly connected with a scraper, one end of the scraper far away from the output shaft extends and is attached to the inner side wall of the rotary separation barrel, and the driving motor is started and the wall scraping motor is started to enable the scraper and the inner side wall of the rotary separation barrel to be displaced relatively.
Compared with the prior art, the invention has the advantages that:
1. the invention utilizes the pretreatment agent to carry out pretreatment, and then adds the treatment agent to promote the glue to be solidified and deposited, the treatment method is simple, the enterprise producing the glue mixture can utilize the method to carry out self-treatment, and does not need to be handed to a special environment-friendly treatment unit to carry out treatment, thereby effectively reducing the production cost of the enterprise.
2. The invention also carries out preheating treatment before adding the pretreating agent, thereby further improving the deposition effect.
3. The separation equipment also comprises a wall scraping component which can scrape solid matters attached to the inner wall of the rotary separation barrel in time in the separation process, so that the separation efficiency is effectively improved.
Drawings
FIG. 1 is a block diagram of the present invention;
FIG. 2 is a schematic structural view of the mixing tank;
FIG. 3 is a schematic view of the structure of the separation apparatus;
in the figure: the stirring barrel 100, the stirring space 101, the barrel body 102, the heating jacket 103, the feeding hole 104, the discharging hole 105, the stirring motor 106, the stirring rod 107, the sampling hole 108, the separation equipment 200, the shell 201, the rotary separation barrel 202, the separation cavity 203, the driving motor 204, the feeding pipeline 205, the wall scraping component 206, the wall scraping motor 207, the output shaft 208 and the scraper 209.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
The embodiment provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 40 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 5 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 50 ℃, and stirring for 20min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 6 parts of sulfated castor oil, 4 parts of ethanol and 0.5 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises 10 parts by weight of polyaluminium chloride, 70 parts by weight of demulsifier, 2 parts by weight of polyacrylamide, 20 parts by weight of sodium hydroxide and 15 parts by weight of barium nitrate, and the adding amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
Referring to fig. 1 and 2, the mixing tank 100 includes a tank body 102 having a mixing space 101 therein, a heating jacket 103 is disposed outside the tank body 102, a feed inlet 104 is disposed at an upper end of the tank body 102, a discharge outlet 105 is disposed at a lower end of the tank body 102, the feed inlet 104 and the discharge outlet 105 are both communicated with the mixing space 101, a mixing motor 106 is fixedly disposed at a top end of the tank body 102, one end of a mixing rod 107 is drivingly connected to the mixing motor 106, the other end of the mixing rod extends into the mixing space 101, a sampling port 108 communicated with the mixing space 101 is further disposed on a side surface of the tank body 102, and a stop valve 109 is disposed on the sampling port 108 and switches the sampling port 108 to be in an open state or a closed state.
When the separating device is used, mixed liquid mixed with glue to be separated enters the barrel body 102 through the feeding hole 104, the mixed liquid to be separated in the barrel body 102 can be heated by the heating jacket 103, the stirring motor 106 is started after the pretreatment agent is added to drive the stirring rod 107 to rotate so as to realize uniform mixing, the treatment agent is added under the stirring state, and sampling observation can be carried out through the sampling port 108 in the treatment process. After the treatment is completed, the treated mixture is discharged through the shutoff valve 109.
Referring to fig. 1 and fig. 3, the separation apparatus 200 includes a housing 201, a rotary separation barrel 202 for solid-liquid separation is disposed in the housing 201, a separation cavity 203 is disposed in the rotary separation barrel 202, a driving motor 204 fixedly connected to the housing 201 is in driving connection with the rotary separation barrel 202, a feeding pipe 205 is fixedly connected to the housing 201, and one end of the feeding pipe extends into the rotary separation barrel 202 and is communicated with the separation cavity 203, and the separation apparatus further includes a wall scraping assembly 206, one end of the wall scraping assembly 206 is fixed on the housing 201, and the other end of the wall scraping assembly extends and fits on the inner side wall of the rotary separation barrel 202.
Specifically, the wall scraping assembly 206 includes a wall scraping motor 207 fixedly disposed at the top of the housing 201, the rotating separating barrel 202 is connected with the outer wall of the wall scraping motor 207 in a rotating and sealing manner, one end of an output shaft 208 of the wall scraping motor 207 extends into the separating cavity 203 and is fixedly connected with a scraping plate 209, one end of the scraping plate 209 far away from the output shaft 208 extends and fits onto the inner side wall of the rotating separating barrel 202, and the driving motor 204 and the wall scraping motor 207 are started to enable the scraping plate 209 and the inner side wall of the rotating separating barrel 202 to generate relative displacement.
In use, the treated mixture enters the separation cavity 203 of the rotating separation drum 202 through the feed conduit 205. The driving motor 204 is started to rotate the rotary separation barrel 202, the rotary separation barrel 202 adopts a structure similar to a rotary screen or a filter thrower in the prior art, namely, the side wall is provided with small holes or is attached with filter cloth, so that liquid in the separation cavity 203 is discharged in the rotating process, and solid is blocked by the side wall of the rotary separation barrel 202, but the accumulation of the solid is too much, so that the separation holes are blocked greatly, and the separation efficiency is low. A wall scraping assembly 206 is provided and the drive motor 204 and the wall scraping motor 207 are activated to cause relative displacement between the scraping elements 209 and the inner side wall of the rotating separation drum 202, i.e. there is a slight difference in the driving speed between the wall scraping motor 207 and the drive motor 204, so that the scraping elements 209 continuously scrape the solids from the side wall of the rotating separation drum 202. Therefore, the separation equipment also comprises a wall scraping component which can scrape solid matters attached to the inner wall of the rotary separation barrel in time in the separation process, thereby effectively improving the separation efficiency.
Example 2
The embodiment provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 50 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 10 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 70 ℃, and stirring for 40min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 10 parts by mass of sulfated castor oil, 2 parts by mass of ethanol and 0.1 part by mass of sodium chloride, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 20 parts of polyaluminium chloride, 50 parts of a demulsifier, 0.5 part of polyacrylamide, 10 parts of sodium hydroxide and 5 parts of barium nitrate, wherein the addition amount of the treating agent is 1.3% of the total mass of the mixed solution to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Example 3
The embodiment provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 1
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 2
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 60 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 3
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil and 3 parts of ethanol in parts by weight, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 4
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 3 parts of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed liquor to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 5
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
Wherein the pretreating agent comprises 0.3 parts by weight of sodium chloride respectively, and the adding amount of the pretreating agent is 0.7 percent of the total mass of the mixed liquor to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate, and the addition amount of the treating agent is 1.3% of the total mass of the mixed liquid to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 6
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide and 15 parts of sodium hydroxide, and the addition amount of the treating agent is 1.3% of the total mass of the mixed solution to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Comparative example 6
The comparative example provides a glue precipitation liquid-residue separation method, which comprises the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel 100;
step two: preheating to 45 ℃, adding a pretreating agent into the stirring barrel 100, starting stirring, and mixing for 8 min;
step three: adding the treating agent into the stirring barrel 100 under the stirring condition, heating to 60 ℃, and stirring for 30min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to a separation device 200 for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
The pretreatment agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by mass, and the addition amount of the pretreatment agent is 0.7% of the total mass of the mixed solution to be separated; the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide and 15 parts of sodium hydroxide, and the addition amount of the treating agent is 1.3% of the total mass of the mixed solution to be separated.
The specific structures of the mixing tank 100 and the separating apparatus 200 are the same as those of embodiment 1, and therefore, are not described herein.
Application example 1
The same batch of mixed liquid to be separated mixed with the glue is averagely divided into 7 parts, and the number of the mixed liquid is 1 to 7 of the experimental group.
The experimental group 1 is treated by the scheme recorded in the embodiment 3 to obtain glue solid waste 1;
the experimental group 2 is treated by the scheme recorded in the comparative example 1 to obtain glue solid waste 2;
the experimental group 3 is treated by the scheme recorded in the comparative example 2 to obtain glue solid waste 3;
the experimental group 4 is treated by the scheme recorded in the comparative example 3 to obtain glue solid waste 4;
the experimental group 5 is treated by the scheme recorded in the comparative example 4 to obtain glue solid waste 5;
the experimental group 6 is treated by the scheme recorded in the comparative example 5 to obtain glue solid waste 6;
the experimental group 7 is treated by the scheme recorded in the comparative example 6 to obtain glue solid waste 7;
the glue solid waste 1-7 was dried by the same conditions and then weighed, the results are shown in the following table:
| experimental group | Dry weight of solid waste (kg) |
| Experimental group 1 | 12.4 |
| Experimental group 2 | 10.6 |
| Experimental group 3 | 11.7 |
| Experimental group 4 | 9.6 |
| Experimental group 5 | 7.5 |
| Experimental group 6 | 8.2 |
| Experimental group 7 | 9.8 |
And (4) analyzing results: from the above table, it can be seen that the dry weight of the solid waste obtained in experimental group 1 is finally the most thorough deposition of glue by the method 1 provided by the present invention, so that the intended purpose of the present invention is achieved.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms of the mixing drum 100, the mixing space 101, the tub 102, the heating jacket 103, the feed inlet 104, the discharge outlet 105, the mixing motor 106, the mixing rod 107, the sampling port 108, the separating apparatus 200, the housing 201, the rotating separating drum 202, the separating cavity 203, the driving motor 204, the feed pipe 205, the wall scraping assembly 206, the wall scraping motor 207, the output shaft 208, the scraper 209, etc., are used more generally, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The glue precipitation liquid-residue separation method is characterized by comprising the following steps:
the method comprises the following steps: guiding the mixed liquid to be separated mixed with the glue into a stirring barrel (100);
step two: adding a pretreating agent into the stirring barrel (100), starting stirring, and mixing for 5-10 min;
step three: adding the treating agent into the stirring barrel (100) under the stirring condition, heating to 50-70 ℃, and stirring for 20-40min to obtain a treated mixture;
step four: and (3) transferring the treated mixture obtained in the third step to separation equipment (200) for solid-liquid separation, wherein the solid matters obtained by separation are solid wastes formed after the glue is deposited, and performing dangerous waste treatment.
2. The glue deposition liquid-residue separation method according to claim 1, characterized in that: the pretreating agent comprises 6-10 parts by mass of sulfated castor oil, 2-4 parts by mass of ethanol and 0.1-0.5 part by mass of sodium chloride.
3. The glue sediment liquid-residue separation method according to claim 2, characterized in that: the pretreating agent comprises 8 parts of sulfated castor oil, 3 parts of ethanol and 0.3 part of sodium chloride in parts by weight.
4. The glue deposition liquid-residue separation method according to claim 1, characterized in that: and the step two also comprises the step of preheating the mixed solution to be separated before adding the pretreating agent, wherein the preheating temperature is 40-50 ℃.
5. The glue deposition liquid-residue separation method according to claim 1, characterized in that: the treating agent comprises polyaluminium chloride, a demulsifier, polyacrylamide, sodium hydroxide and barium nitrate.
6. The glue sediment liquid-residue separation method according to claim 5, characterized in that: the treating agent comprises, by mass, 10-20 parts of polyaluminium chloride, 50-70 parts of a demulsifier, 0.5-2 parts of polyacrylamide, 10-20 parts of sodium hydroxide and 5-15 parts of barium nitrate.
7. The glue sediment liquid-residue separation method according to claim 5, characterized in that: the treating agent comprises, by mass, 15 parts of polyaluminium chloride, 60 parts of a demulsifier, 1 part of polyacrylamide, 15 parts of sodium hydroxide and 10 parts of barium nitrate.
8. The glue deposition liquid-residue separation method according to claim 1, characterized in that: the stirring barrel (100) comprises a barrel body (102) with a stirring space (101) inside, a heating jacket (103) is arranged outside the barrel body (102), a feeding hole (104) is formed in the upper end of the barrel body (102), a discharging hole (105) is formed in the lower end of the barrel body (102), the feeding hole (104) and the discharging hole (105) are both communicated with the stirring space (101), a stirring motor (106) is fixedly arranged at the top end of the barrel body (102), one end of a stirring rod (107) is connected to the stirring motor (106) in a driving mode, the other end of the stirring rod extends into the stirring space (101), a sampling port (108) communicated with the stirring space (101) is further arranged on the side face of the barrel body (102), and a stop valve (109) is arranged on the sampling port (108) and switches the sampling port (108) to be in an open state or a closed state.
9. The glue deposition liquid-residue separation method according to claim 1, characterized in that: separation equipment (200) includes casing (201), be equipped with in casing (201) and be used for solid-liquid separation's rotatory separation bucket (202), be equipped with separation cavity (203) in rotatory separation bucket (202), driving motor (204) of fixed connection on casing (201) are connected with rotatory separation bucket (202) drive, and feed pipe (205) fixed connection is on casing (201) and one end extends to in rotatory separation bucket (202) and is linked together with separation cavity (203), still including scraping wall subassembly (206), scrape wall subassembly (206) one end and fix on casing (201), the other end extends the laminating on the inside wall of rotatory separation bucket (202).
10. The glue sediment liquid-residue separation method according to claim 9, characterized in that: scrape wall subassembly (206) including fixed setting at the wall motor (207) of scraping at casing (201) top, rotatory separating tub (202) with scrape wall motor (207) outer wall and rotate sealing connection, scrape output shaft (208) one end of wall motor (207) and extend to in separating cavity (203) and fixedly connected with scraper blade (209), the one end that output shaft (208) were kept away from in scraper blade (209) extends to laminate to the inside wall of rotatory separating tub (202) on, and start driving motor (204) and scrape wall motor (207) and can make and take place relative displacement between scraper blade (209) and the inside wall of rotatory separating tub (202).
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