CN114057253A - Evaporation and recovery device and process method for treating slag-containing high-viscosity waste liquid - Google Patents
Evaporation and recovery device and process method for treating slag-containing high-viscosity waste liquid Download PDFInfo
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- CN114057253A CN114057253A CN202111594565.3A CN202111594565A CN114057253A CN 114057253 A CN114057253 A CN 114057253A CN 202111594565 A CN202111594565 A CN 202111594565A CN 114057253 A CN114057253 A CN 114057253A
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- 239000007788 liquid Substances 0.000 title claims abstract description 41
- 238000001704 evaporation Methods 0.000 title claims abstract description 30
- 230000008020 evaporation Effects 0.000 title claims abstract description 29
- 239000002893 slag Substances 0.000 title claims abstract description 26
- 239000002699 waste material Substances 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 103
- 238000001035 drying Methods 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims description 92
- 239000000428 dust Substances 0.000 claims description 15
- 238000009833 condensation Methods 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 239000002351 wastewater Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 10
- 230000014759 maintenance of location Effects 0.000 abstract description 8
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 239000002904 solvent Substances 0.000 abstract description 4
- 238000007086 side reaction Methods 0.000 abstract description 3
- 238000005979 thermal decomposition reaction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000010408 film Substances 0.000 description 34
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 2
- 206010057040 Temperature intolerance Diseases 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000008543 heat sensitivity Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000011552 falling film Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010907 mechanical stirring Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/08—Thin film evaporation
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- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
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- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a device for evaporating and recovering slag-containing high-viscosity waste liquid, which comprises a preheater, a scraper film evaporator, a hollow blade dryer, a material condenser, a condensate tank, a discharge cut-off valve and a discharge spiral. The scraper film evaporator and the hollow blade dryer are vertically connected in series, and feed liquid is concentrated by the scraper film evaporator and then enters the hollow blade dryer for further drying until solid is discharged. The invention also provides a process method for treating the slag-containing high-viscosity waste liquid. The evaporation device combines the advantages of two drying modes, greatly reduces the retention time of feed liquid, can effectively prevent thermal decomposition and side reaction, and is beneficial to the recovery of a thermosensitive solvent in the material; can prevent the outlet material of the evaporator from being blocked, is easy to realize continuous automation, reduces the labor intensity and has higher safety and environmental protection performance.
Description
Technical Field
The invention belongs to the technical field of evaporation, and particularly relates to an evaporation recovery device and a process method for treating slag-containing high-viscosity waste liquid, which are used for recovery treatment of solid solution-containing agents in chemical industry and environmental protection industry.
Background
In the field of treatment of high-viscosity waste liquid containing slag, better application technologies comprise a multi-effect evaporation technology and a Mechanical Vapor Recompression (MVR) technology, although the energy consumption is relatively low, the retention time is long, scaling is easy, certain limitations exist when heat-sensitive and high-viscosity materials are treated, the system is relatively complex, and the investment cost is relatively high. The full name of the thin film evaporator is a mechanical stirring type thin film evaporator, also called a rotary thin film evaporator, which is a novel efficient evaporator for falling film evaporation under the condition of normal pressure or vacuum, and the evaporator has the advantages of high heat transfer coefficient (high evaporation intensity), good low-temperature evaporation effect, short material retention time, wide applicable viscosity range, high operation elasticity and the like, but has poor anti-scaling capability and is not suitable for the working condition with higher solid content; the hollow blade dryer has compact structure and high heat transfer efficiency, the blades have self-cleaning capability, and the material is easy to discharge and is suitable for slurry and mud materials. The two evaporators have the characteristics respectively, but certain difficulty exists in the process of independently treating the slag-containing high-viscosity waste liquid, so that a continuous production flow combining the advantages of the two types of equipment needs to be designed, the retention time of materials is shortened, and the material blockage is reduced.
Disclosure of Invention
Aiming at the problems, the invention provides an evaporation recovery device and a process method for treating slag-containing high-viscosity waste liquid, which solve the technical problem that the existing evaporation devices have certain limitations when the slag-containing high-viscosity waste liquid is treated independently.
In order to achieve the purpose, the invention adopts the technical scheme that:
an evaporation recovery device for treating slag-containing high-viscosity waste liquid comprises a preheater, a scraper film evaporator, a hollow blade dryer, a material condenser and a condensate tank, the tube side inlet of the preheater is connected with a material inlet, the tube side outlet of the preheater is connected with the material inlet of the scraper film evaporator, the scraper film evaporator and the hollow blade dryer are vertically connected in series, a material outlet of the scraper film evaporator is connected with a material inlet of the hollow blade dryer, a steam outlet of the scraper film evaporator is connected with a shell side inlet of the preheater, the non-condensation steam outlet of the preheater and the steam outlet of the hollow blade dryer are connected with the tube side feed inlet of the material condenser, the condensation steam outlet of the preheater is connected with the tube side discharge outlet of the material condenser, and the tube side discharge outlet of the material condenser is connected with the inlet of a condensation liquid tank.
Further, hollow blade desicator still is provided with first discharging device and second discharging device, first discharging device is including the first ejection of compact trip valve, first ejection of compact spiral and the second ejection of compact trip valve that connect gradually the setting, second discharging device is including the third ejection of compact trip valve, second ejection of compact spiral and the fourth ejection of compact trip valve that connect gradually the setting, first ejection of compact spiral and second ejection of compact spiral are the hollow cylinder structure that the level set up, and inside is equipped with helical blade and promotes the material and remove, and first ejection of compact trip valve and second ejection of compact trip valve set up respectively at first ejection of compact spiral entry end and exit end, and third ejection of compact trip valve and fourth ejection of compact trip valve set up respectively at the entry end and the exit end of second ejection of compact spiral.
Furthermore, a feeding flowmeter is arranged at a tube side feeding hole of the preheater, and a discharging flowmeter is arranged at a tube side discharging hole of the material condenser.
Furthermore, the outer wall of the scraper film evaporator is provided with a heating jacket for introducing a heat source to heat the scraper film evaporator, and the heat source is steam or heat conducting oil.
Furthermore, the hollow blade dryer is provided with a heat source inlet and a heat source outlet, a heat source is introduced into the hollow blade dryer, and the heat source is steam or heat conduction oil.
Furthermore, the hollow blade dryer is also provided with a dust removal device at a steam outlet, and the dust removal device is a wire mesh demister or a water bath dust remover.
Furthermore, the material condenser adopts a vertical double-tube-pass shell-and-tube condenser, the top of a tube pass is provided with a tube pass feed inlet, the bottom of the tube pass is provided with a tube pass discharge outlet, and a shell pass is used for introducing cooling water and enters from bottom to top.
Still further, the device also comprises a vacuum device, and the scraper film evaporator, the hollow blade dryer, the material condenser, the condensate tank and the preheater are respectively connected with the vacuum device.
The invention also provides a process method for treating the slag-containing high-viscosity waste liquid, which adopts the evaporation recovery device and comprises the following process steps:
s1: the material to be treated enters the tube pass of a preheater after being measured by a feed flowmeter, and enters a scraper film evaporator for evaporation and drying after being preheated;
s2: after being evaporated and dried by the scraper film evaporator 2, the waste water is discharged from a material outlet of the scraper film evaporator and enters the hollow blade dryer for further treatment, and the treated material is alternately discharged through a first discharging device and a second discharging device of the hollow blade dryer;
s3: steam generated in the scraper film evaporator enters the shell pass of the preheater to exchange heat with materials entering the tube pass of the preheater;
s4: steam that not condense completely in the preheater mixes with the steam that hollow blade desicator evaporation produced and gets into material condenser and condense, gets into ejection of compact flowmeter after the condensate is merged with the condensate of preheater shell side condensation and measures, later reentrant condensate tank.
Further, the implementation process of alternately discharging the materials in step S2 is as follows: when the hollow blade dryer works, the first discharging cut-off valve is opened, the second discharging cut-off valve is closed, the third discharging cut-off valve is closed, the fourth discharging cut-off valve is opened, and at the moment, the dried material is squeezed into the first discharging spiral by the blades; when the space in the first discharging spiral is filled, the first discharging cut-off valve is closed, the second discharging cut-off valve is opened, and the spiral starts to discharge; meanwhile, the third discharging cut-off valve is opened, the fourth discharging cut-off valve is closed, the dried material is squeezed into the second discharging spiral by the paddle, after the space in the second discharging spiral is filled up, the second discharging spiral discharges materials, the third discharging cut-off valve is closed, the fourth discharging cut-off valve is opened to discharge materials, and the materials are alternately circulated, so that the materials are alternately discharged.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention combines the advantages of the scraper film evaporator and the hollow blade dryer, overcomes the defects of high solid content and easy material blockage of the scraper film evaporator, can realize continuous discharging under vacuum operation, reduces labor intensity and has higher safety and environmental protection performance;
2. the invention has good adaptability to materials with unstable slag content, does not need filtering before material treatment, can effectively prevent the retention time of thermosensitive materials in the device, reduces the side reaction and thermal decomposition of the materials, and improves the recovery rate and quality of products;
3. the steam outlet of the hollow blade dryer is provided with the dust removal device, so that solid dust can be prevented from entering steam, and the quality of a recovered solvent is improved;
4. the hot steam generated by the scraper film evaporator is connected into the preheater to preheat the feed, so that the secondary utilization of heat is realized, and the energy is saved;
5. the hollow blade dryer disclosed by the invention has the advantages that the four discharging cut-off valves are arranged for alternately discharging, so that the requirement on the vacuum degree in the operation of equipment is met, and the continuous discharging under the vacuum condition is realized.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of a discharge device of the hollow blade dryer of the present invention;
in the figure: 1. a preheater; 2. a scraper film evaporator; 21. a heating jacket; 3. a hollow blade dryer; 31. a first discharge cut-off valve; 32. a first discharge screw; 33. a second discharge cut-off valve; 34. a third discharge cut-off valve; 35. a second discharge screw; 36. a fourth discharge cut-off valve; 4. a material condenser; 5. a condensate tank; 6. a feed flow meter; 7. a discharge flow meter; 8. a dust removing device.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
As shown in figure 1, an evaporation recovery device for treating slag-containing high-viscosity waste liquid comprises a preheater 1, a scraper film evaporator 2, a hollow blade dryer 3, a material condenser 4 and a condensate tank 5, wherein a tube side inlet of the preheater 1 is connected with a material inlet, a tube side outlet of the preheater 1 is connected with a material inlet of the scraper film evaporator 2, the preheater 1 adopts a horizontal shell-and-tube heat exchanger, a preheater tube side needs to be moved by materials, and solid materials are prevented from accumulating at dead angles of a shell.
The scraper film evaporator 2 and the hollow blade dryer 3 are vertically connected in series, a material outlet of the scraper film evaporator 2 is connected with a material inlet of the hollow blade dryer 3, and materials firstly enter the scraper film evaporator 2 for concentration and then enter the hollow blade dryer 3. The concentration multiple of the material in the scraper film evaporator 2 depends on the solid content of the material, the solid content of the material is generally controlled to be 20-50% by controlling smooth discharge as a main consideration. The outer wall of the scraper film evaporator 2 is provided with a heating jacket 21 for introducing a heat source to heat the scraper film evaporator 2, and the heat source is determined according to the material characteristics and the public engineering condition of an enterprise, and generally steam or heat conducting oil is selected.
The hollow blade dryer 3 is used for processing concentrated materials, and the rotation number of the main shaft is adjusted according to the heat sensitivity of the materials so as to adjust the retention time of the materials in the dryer. The solid content of the discharged material can reach more than 90 percent. The hollow blade dryer 3 is provided with a heat source inlet and a heat source outlet, heat sources need to be introduced into the outer wall and the blade, and the heat sources are generally steam or heat conducting oil. Hollow blade desicator 3 still is provided with dust collector 8 at the steam outlet, prevents that the solid dust from getting into steam, improves the quality of retrieving the solvent, dust collector 8 is silk screen defroster or water-bath dust remover.
A feed flowmeter 6 is arranged at a tube side feed inlet of the preheater 1 and used for metering inlet flow, and a discharge flowmeter 7 is arranged at a tube side discharge outlet of the material condenser 4.
The steam outlet of the scraper film evaporator 2 is connected with the shell side inlet of the preheater 1, the uncondensed steam outlet of the preheater 1 and the steam outlet of the hollow blade dryer 3 are both connected with the tube side feed inlet of the material condenser 4, the condensed steam outlet of the preheater 1 is connected with the tube side discharge port of the material condenser 4, and the tube side discharge port of the material condenser 4 is connected with the inlet of the condensate tank 5. When the device is in specific operation, steam generated after the material is evaporated by the scraper film evaporator 2 enters the shell pass of the preheater 1 to exchange heat with cold materials, the material is preheated to be close to a boiling point, steam which is not completely condensed in the preheater 1 and steam generated by evaporation of the hollow blade dryer 3 are mixed to enter the material condenser 4 for condensation, condensed liquid after condensation is combined with the condensed liquid of the shell pass of the preheater and then enters the discharge flowmeter 7 for metering, and then the condensed liquid enters the condensed liquid tank 5.
The material condenser 4 adopts a vertical double-tube-pass shell-and-tube condenser, the top of a tube pass is provided with a tube pass feed inlet, the bottom of the tube pass is provided with a tube pass discharge outlet, and a shell pass is used for introducing cooling water and is fed in and discharged out from the bottom.
As shown in fig. 2, the hollow blade dryer 3 is further provided with two discharging devices: first discharging device and second discharging device are equipped with a ejection of compact trip valve on every discharging device pipeline, connect the ejection of compact spiral behind the valve, and an ejection of compact trip valve is established again to every spiral discharge gate, and the hollow cylinder structure that the ejection of compact spiral set up for the level, inside is equipped with propeller blade and promotes the material and remove, and is specific, first discharging device is including connecting gradually first ejection of compact trip valve 31, first ejection of compact spiral 32 and the second ejection of compact trip valve 33 that sets up, second discharging device is including connecting gradually third ejection of compact trip valve 34, the second ejection of compact spiral 35 and the fourth ejection of compact trip valve 36 that sets up. When 3 during operations of hollow paddle desicator, the preceding ejection of compact trip valve of one of them spiral is opened, and back ejection of compact trip valve is closed, and during this ejection of compact spiral was crowded into by the paddle to the material after the drying this moment, when the space in the passageway was crowded to be full, the ejection of compact trip valve was closed before the spiral, and back ejection of compact trip valve is opened, the spiral ejection of compact. The state of the front and back cut-off valve of the other discharging spiral is just opposite to the state of the front and back cut-off valve of the other discharging spiral. The continuous discharging in the vacuum state can be realized by the switching operation.
The device also comprises a vacuum device, and the scraper film evaporator, the hollow blade dryer, the material condenser, the condensate tank and the preheater are respectively connected with the vacuum device.
The method is mainly applicable to industries which use a large amount of solvents such as manufacturing of various resin films, fibers and leathers.
The specific embodiment is that the waste liquid contains 10-40% of water, 10-50% of DMAC (dimethylacetamide), 1-5% of resin and 1-10% of acetate, DMAC is easy to decompose under the condition of high temperature to generate dimethylamine and acetic acid, has certain heat sensitivity and high viscosity, and is difficult to realize continuous treatment by using a single device.
As shown in figure 1, the waste liquid enters a preheater 1 after being metered by a feed flowmeter 6, and exchanges heat with material steam generated by a scraper film evaporator to 80-100 ℃; and then the feed liquid enters the scraper film evaporator 2, the feed liquid is concentrated by 5-15 times, and the solid content of the final product of the scraper film evaporator 2 is controlled at 30-50%. Concentrated materials enter the hollow blade dryer 3 through gravity and are further dried inside the hollow blade dryer, and the solid content of the final discharged materials can reach 70-90%.
The heat sources of the scraper film evaporator 2 and the hollow blade dryer 3 adopt low-pressure steam, and the temperature is 180-200 ℃. Steam generated by evaporation of materials in the scraper film evaporator 2 exchanges heat with feeding materials, part of the material steam is condensed, and the uncondensed part enters the material condenser 4 for further condensation. All the condensate liquid is collected and enters a condensate liquid tank for temporary storage.
And a steam outlet of the hollow blade dryer 3 is provided with a dust removal device 8, and a wire mesh demister is selected as the dust removal device.
The device is operated in vacuum, the pressure is controlled to be minus 40 to minus 60kpa, the highest temperature in the device is less than or equal to 120 ℃, the hollow blade dryer 3 adopts double channels to switch and discharge, the requirement of vacuum degree in the operation of equipment is met, and the continuous operation of the device can be realized. The four ejection of compact trip valves of binary channels of this device switch the ejection of compact in turn, realize through PLC control system.
The device combines the advantages of a scraper film evaporator and a hollow blade dryer, overcomes the technical problem of certain limitation when the high-viscosity waste liquid containing slag is treated independently, can continuously discharge under vacuum operation, reduces labor intensity, has higher safety and environmental protection performance, has good adaptability to unstable materials containing slag, does not need filtration before treatment, can effectively prevent the retention time of heat-sensitive materials in the device, reduces the side reaction and thermal decomposition of the materials, shortens the retention time of the materials, reduces material blockage, and improves the recovery rate and quality of products. In conclusion, the device is suitable for industrial popularization and application.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. The evaporation recovery device for treating the slag-containing high-viscosity waste liquid is characterized by comprising a preheater (1), a scraper film evaporator (2), a hollow blade dryer (3), a material condenser (4) and a condensate tank (5), wherein a tube pass inlet of the preheater (1) is connected with a material inlet, a tube pass outlet of the preheater (1) is connected with the material inlet of the scraper film evaporator (2), the scraper film evaporator (2) and the hollow blade dryer (3) are vertically arranged in series, a material outlet of the scraper film evaporator (2) is connected with the material inlet of the hollow blade dryer (3), a steam outlet of the scraper film evaporator (2) is connected with a shell pass inlet of the preheater (1), a non-condensed steam outlet of the preheater (1) and a steam outlet of the hollow blade dryer (3) are connected with a tube feed inlet of the material condenser (4), the condensed steam outlet of the preheater (1) is connected with the tube pass discharge hole of the material condenser (4), and the tube pass discharge hole of the material condenser (4) is connected with the inlet of the condensed liquid tank (5).
2. The evaporation recovery device for treating the slag-containing high-viscosity waste liquid according to claim 1, wherein the hollow blade dryer (3) is further provided with a discharging device, the device comprises a first discharging device and a second discharging device, the first discharging device comprises a first discharging cut-off valve (31), a first discharging spiral (32) and a second discharging cut-off valve (33) which are sequentially connected, the second discharging device comprises a third discharging cut-off valve (34), a second discharging spiral (35) and a fourth discharging cut-off valve (36) which are sequentially connected, the first discharging spiral (32) and the second discharging spiral (35) are horizontally arranged hollow cylindrical structures, a spiral blade is arranged inside the hollow cylindrical structures to push the material to move, the first discharging cut-off valve (31) and the second discharging cut-off valve (33) are respectively arranged at the inlet end and the outlet end of the first discharging spiral (32), and a third discharging cut-off valve (34) and a fourth discharging cut-off valve (36) are respectively arranged at the inlet end and the outlet end of the second discharging spiral (35).
3. The evaporation recovery device for treating the slag-containing high-viscosity waste liquid according to claim 2, wherein a feed flow meter (6) is arranged at a tube side feed inlet of the preheater (1), and a discharge flow meter (7) is arranged at a tube side discharge outlet of the material condenser (4).
4. The evaporation recovery device for treating the slag-containing high-viscosity waste liquid according to claim 1 or 2, characterized in that the outer wall of the scraper film evaporator (2) is provided with a heating jacket (21) for introducing a heat source to heat the scraper film evaporator (2), wherein the heat source is steam or heat conducting oil.
5. The evaporation and recovery device for treating the slag-containing high-viscosity waste liquid according to claim 1 or 2, wherein the hollow blade dryer (3) is provided with a heat source inlet and a heat source outlet, a heat source is introduced into the hollow blade dryer, and the heat source is steam or heat-conducting oil.
6. The evaporation and recovery device for treating the slag-containing high-viscosity waste liquid as claimed in claim 1, wherein the hollow blade dryer (3) is further provided with a dust removal device (8) at a steam outlet, and the dust removal device (8) is a wire mesh demister or a water bath dust remover.
7. The evaporation recovery device for treating the slag-containing high-viscosity waste liquid according to claim 1, wherein the material condenser (4) is a vertical double-tube-pass shell-and-tube condenser, the top of a tube pass is a tube pass feeding hole, the bottom of the tube pass is provided with a tube pass discharging hole, and a shell pass is used for feeding cooling water and is fed in and discharged out from the bottom.
8. The evaporation and recovery device for treating the slag-containing high-viscosity waste liquid according to claim 1, further comprising a vacuum device, wherein the scraper film evaporator (2), the hollow blade dryer (3), the material condenser (4), the condensate tank (5) and the preheater (1) are respectively connected with the vacuum device.
9. A process method for treating slag-containing high-viscosity waste liquid, which adopts the evaporation recovery device for treating slag-containing high-viscosity waste liquid as claimed in any one of claims 1 to 8, and is characterized by comprising the following process steps:
s1: the material to be treated enters the tube pass of the preheater (1) after being measured by the feed flowmeter (6), and enters the scraper film evaporator (2) for evaporation and drying after being preheated;
s2: after being evaporated and dried by the scraper film evaporator (2), the waste water is discharged from a material outlet of the scraper film evaporator (2) and enters the hollow blade dryer (3) for further treatment, and the treated material is alternately discharged through a first discharging device and a second discharging device of the hollow blade dryer (3);
s3: steam generated in the scraper film evaporator (2) enters the shell side of the preheater (1) to exchange heat with the material entering the tube side of the preheater (1);
s4: steam which is not completely condensed in the preheater (1) and steam generated by evaporation of the hollow blade dryer (3) are mixed and enter the material condenser (4) for condensation, condensed liquid is combined with condensed liquid of the shell pass of the preheater (1) and then enters the discharge flowmeter (7) for metering, and then enters the condensed liquid tank (5) for storage.
10. The process method for treating the slag-containing high-viscosity waste liquid according to claim 9, wherein the step of alternately discharging the materials in the step S2 comprises the following steps: when the hollow blade dryer (3) works, the first discharging cut-off valve (31) is opened, the second discharging cut-off valve (33) is closed, the third discharging cut-off valve (34) is closed, the fourth discharging cut-off valve (36) is opened, and at the moment, the dried material is extruded into the first discharging spiral (32) by the blades; when the space in the first discharging spiral (32) is filled, the first discharging cut-off valve (31) is closed, the second discharging cut-off valve (33) is opened, and the spiral starts to discharge; meanwhile, the third discharging cut-off valve (34) is opened, the fourth discharging cut-off valve (36) is closed, the dried materials are squeezed into the second discharging spiral (35) by the blades, after the space in the second discharging spiral (35) is filled up, the materials are discharged by the second discharging spiral (35), the third discharging cut-off valve (34) is closed, the fourth discharging cut-off valve (36) is opened for discharging, and the materials are alternately discharged.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426853A (en) * | 2022-04-07 | 2022-05-03 | 河北迪运化工科技有限公司 | Oil-based drilling fluid regeneration treatment method |
| CN115028222A (en) * | 2022-07-20 | 2022-09-09 | 台州天工医化设备有限公司 | High-salinity wastewater treatment system and treatment process thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000300230A (en) * | 1999-04-20 | 2000-10-31 | Shinmei Seisakusho:Kk | Apparatus for continuously drying and cooling powder under vacuum |
| CN103382021A (en) * | 2012-05-05 | 2013-11-06 | 康大平 | Production method of sulphur recovered by continuous distillation of sulfur slag, and apparatus thereof |
| CN107098562A (en) * | 2017-05-08 | 2017-08-29 | 苏州工业园区中法环境技术有限公司 | The thermal energy step reutilization system of two-stage sludge drying process |
| CN208238393U (en) * | 2018-01-16 | 2018-12-14 | 四川高福记生物科技有限公司 | A kind of drying discharging device of bean cotyledon |
| CN210021204U (en) * | 2019-03-15 | 2020-02-07 | 浙江省天正设计工程有限公司 | Novel evaporation plant suitable for high viscosity material |
| CN213294756U (en) * | 2020-10-09 | 2021-05-28 | 江苏金陵环保科技有限公司 | High COD, high salt waste water low temperature evaporation drying integration equipment |
| CN214714411U (en) * | 2021-03-08 | 2021-11-16 | 昆山瑞淞环境科技有限公司 | Multifunctional film evaporator for waste liquid reduction |
| CN216946291U (en) * | 2021-12-24 | 2022-07-12 | 浙江省天正设计工程有限公司 | Evaporation and recovery device for treating slag-containing high-viscosity waste liquid |
-
2021
- 2021-12-24 CN CN202111594565.3A patent/CN114057253A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000300230A (en) * | 1999-04-20 | 2000-10-31 | Shinmei Seisakusho:Kk | Apparatus for continuously drying and cooling powder under vacuum |
| CN103382021A (en) * | 2012-05-05 | 2013-11-06 | 康大平 | Production method of sulphur recovered by continuous distillation of sulfur slag, and apparatus thereof |
| CN107098562A (en) * | 2017-05-08 | 2017-08-29 | 苏州工业园区中法环境技术有限公司 | The thermal energy step reutilization system of two-stage sludge drying process |
| CN208238393U (en) * | 2018-01-16 | 2018-12-14 | 四川高福记生物科技有限公司 | A kind of drying discharging device of bean cotyledon |
| CN210021204U (en) * | 2019-03-15 | 2020-02-07 | 浙江省天正设计工程有限公司 | Novel evaporation plant suitable for high viscosity material |
| CN213294756U (en) * | 2020-10-09 | 2021-05-28 | 江苏金陵环保科技有限公司 | High COD, high salt waste water low temperature evaporation drying integration equipment |
| CN214714411U (en) * | 2021-03-08 | 2021-11-16 | 昆山瑞淞环境科技有限公司 | Multifunctional film evaporator for waste liquid reduction |
| CN216946291U (en) * | 2021-12-24 | 2022-07-12 | 浙江省天正设计工程有限公司 | Evaporation and recovery device for treating slag-containing high-viscosity waste liquid |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114426853A (en) * | 2022-04-07 | 2022-05-03 | 河北迪运化工科技有限公司 | Oil-based drilling fluid regeneration treatment method |
| CN114426853B (en) * | 2022-04-07 | 2022-06-17 | 河北迪运化工科技有限公司 | Oil-based drilling fluid regeneration treatment method |
| CN115028222A (en) * | 2022-07-20 | 2022-09-09 | 台州天工医化设备有限公司 | High-salinity wastewater treatment system and treatment process thereof |
| CN115028222B (en) * | 2022-07-20 | 2024-07-23 | 台州天工医化设备有限公司 | High-salt wastewater treatment system and treatment process thereof |
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