CN202450017U

CN202450017U - Three-kettle condensation device for producing synthetic rubber by using solution method

Info

Publication number: CN202450017U
Application number: CN2012200557327U
Authority: CN
Inventors: 赵美玉; 宋守刚; 刘善兵; 麻公冰; 赵奇; 范友虎
Original assignee: SHANDONG QILU PETROCHEMICAL ENGINEERING Co Ltd
Current assignee: SHANDONG QILU PETROCHEMICAL ENGINEERING Co Ltd
Priority date: 2012-02-20
Filing date: 2012-02-20
Publication date: 2012-09-26
Anticipated expiration: 2022-02-20

Abstract

The utility model relates to a three-kettle condensation device for producing synthetic rubber by using a solution method and belongs to the field of organic chemical production devices. The device is characterized by comprising a first condensation kettle, a middle condensation kettle, an end condensation kettle, a hot water vapor ejector, colloidal particle water pumps and a vapor recovery ejector, wherein the first condensation kettle, the middle condensation kettle and the end condensation kettle are connected in series though pipelines for usage, the colloidal particle water pumps are respectively arranged behind the first condensation kettle, the middle condensation kettle and the end condensation kettle on pipelines, and a feeding port of the first condensation kettle is connected with the hot water vapor ejector through a pipeline. Compared with an equal-pressure double-kettle condensation technology, a three-kettle differential pressure condensation technology has an obvious energy-saving consumption-reducing effect, the vapor consumption is reduced by about 0.7 ton to 1.0 ton per ton of gum, the solvent oil consumption is reduced by about 8 kilograms per ton of gum, the circulating water consumption is reduced by about 15 tons per ton of gum, and the sewage discharging volume is reduced by about 4.4 tons per ton of gum. The three-kettle differential pressure condensation technology has a good comprehensive economic effect.

Description

Solution method is produced elastomeric three still coacervation devices

Technical field

The utility model relates to a kind of solution method and produces elastomeric three still coacervation devices, belongs to organic chemical industry's production unit field.

Background technology

In the elastomeric production process of solution method, the cohesion unit is the technological process with polymkeric substance and separated from solvent, and its energy consumption (mainly being steam consumption) and material consumption (mainly being solvent consumption) account for more than 50% of full device.Therefore, the optimization of condensed system occupies critical role in whole solution method viton production technique is improved, and its energy consumption and material consumption are the important symbols of weighing the condensation technique level.Flocculating result is not good, not only influences quality product, causes the waste of the solvent and the energy, and remains in that solvent major part in the micelle is in line in last handling process goes into atmosphere, and contaminate environment also can influence the security of production when concentration is high.

What domestic solution method viton rubber device adopted all the time is isobaric condensation technique (or claiming the pressurize cohesion) isolating polymer and solvent; In process of production; Need to adopt higher condensation temperature and lower working pressure, could guarantee the glue flocculating result, cause heating to consume higher with quantity of circulating water with quantity of steam, cooling; And on existing technical process basis, the problem that solvent consumption is high also is difficult to solve.

Summary of the invention

Deficiency according to prior art; The technical problem that the utility model will solve is: provide a kind of solution method to produce elastomeric three still coacervation devices; The consumption that reduces heating steam is saved the consumption of gas phase water coolant again, thereby reduces the energy consumption material consumption of device, reduces production costs, protects environment.

The utility model solves the technical scheme that its technical problem adopted: provide a kind of solution method to produce elastomeric three still coacervation devices; It is characterized in that comprising: condense still in first still, the cohesion, condense last still, hot water and steam injector and micelle water pump, recovered steam injector; Condense in first still, the cohesion still and condense last still and use through pipeline series connection; On the placed in-line pipeline in the first still of cohesion, cohesion still and condense last still and be respectively arranged with the micelle water pump at the back, the opening for feed that condenses first still connects the hot water and steam injector through pipeline.

The meteorological outlet of still connects the steam-in of the first still of cohesion in the described cohesion through pipeline.

The gaseous phase outlet of the last still of described cohesion connects the recovered steam injector through pipeline, and the recovered steam injector connects the gas phase inlet of the first still of cohesion through pipeline.

The utility model adopts three cohesion stills series connection, and the service temperature of three cohesion stills, pressure are according to the different steps of cohesion and difference: first still employing elevated pressures, lesser temps, not only reduced the dividing potential drop that steams water vapor in the gas phase but also reduced gas phase temperature; Middle still adopts high pressure, high temperature, further improves flocculating result; The end still adopts low pressure, high temperature, makes solvent more complete to external diffusion from micelle, reduces the oleaginousness in the micelle.

In order to strengthen condensing the flocculating result of first still, the mode that adopts superheated water to mix back spray glue with glue needs to increase steam injector and glue water static mixer.The gaseous phase outlet that condenses first still then connects condensate recovery system through pipeline.

In order to improve energy-saving effect, still returns first still as its thermal source with the high temperature gas phase of the last still of cohesion in the cohesion.Condense and return first still after last still gas phase adopts the steam injector pressurize, guarantee the low voltage operated of the last still of cohesion simultaneously.

Three cohesion stills all are with stirring, and its whipped form is relevant with the different steps of glue nozzle and vapor-nozzle and cohesion, so the whipped form of three cohesion stills has nothing in common with each other.

The beneficial effect of the utility model is:

(1) this technical energy saving consumption reduction effect is obvious; Three still differential pressure condensation techniques are compared with isobaric two still condensation techniques: steam consumption reduces about 0.7～1.0 ton/xanthan, and solvent oil consumption reduces that about 8 kg/ton glue, recirculated water consumption reduce about 15 tons/xanthan, sewage discharge reduces about 4.4 tons/ton.Three still differential pressure condensation technique mixed economy better effects if.

(2) based on the requirement of three stills cohesion to equipment; Existing domestic traditional two still cohesion equipment all can reuse as still in the cohesion and the last still of cohesion; The first still of cohesion that only needs to increase by 1 less volume gets final product; Existing plant modification equipment investment is less, can reach purpose energy-saving and cost-reducing, the protection environment, and this technology popularization is worth high.

Description of drawings

Fig. 1 is the structural representation of the utility model;

1 is the first still of cohesion among the figure; 2 are still in the cohesion; 3 are the last still of cohesion; 4 is the hot water and steam injector; 5 is the micelle water pump; 6 is the recovered steam injector.

Embodiment

Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:

As shown in Figure 1; The utility model comprises: condense the last still of still 2 in first still 1, the cohesion, cohesion 3, hot water and steam injector 4 and micelle water pump 5; Condense in first still 1, the cohesion still 2 and condense last still 3 and use through the pipeline series connection; On the placed in-line pipeline in the first still of cohesion 1, cohesion still 2 and condense last still 3 back and be respectively arranged with micelle water pump 5, the opening for feed that condenses first still 1 connects hot water and steam injector 4 through pipeline.

Still 2 meteorological outlets connect the steam-in of the first still 1 of cohesion in the cohesion through pipeline.

The gaseous phase outlet that condenses last still 3 connects recovered steam injector 6 through pipeline, and recovered steam injector 6 connects the gas phase inlet of the first still 1 of cohesion through pipeline.

Glue mixes the gather bottom of still 1 of back self-solidifying and is injected in the still in the hot water with superheated water from hot water and steam injector 4, under the acting in conjunction of stirring with hot water, begin cohesion, and the solvent oil that flashes off and water vapor remove recovery solvent after condensation, the cooling.Micelle water is delivered to still 2 in the cohesion with micelle water pump 5.

In cohesion in the still 2, stir with high temperature under glue further condense, the solvent that flashes off and water vapor directly turn back to and condense first still 1 bottom as thermal source, condense completely micelle and high-temperature water and deliver to micelle water pump 5 and condense last still 3.

The gas phase of condensing last still 3 flash distillations turns back to the first still of cohesion 1 bottom as thermal source after 6 pressurizations of recovered steam injector; Guaranteeing to condense last still by steam injector simultaneously under low pressure operates; Solvent oil under stirring, high temperature, low pressure in the micelle further diffuses out; Be flashed in the gas phase and reclaim, the micelle and the high-temperature water that remove solvent are fully delivered to after-treatment system with micelle water pump 5.

Claims

1. a solution method is produced elastomeric three still coacervation devices; It is characterized in that comprising: condense still (2) in first still (1), the cohesion, condense last still (3), hot water and steam injector (4), micelle water pump (5) and recovered steam injector (6); Condense in first still (1), the cohesion still (2) and the last still of cohesion (3) through pipeline series connection use; Still (2) and the last still of cohesion (3) back are respectively arranged with micelle water pump (5) in condensing first still (1) on the placed in-line pipeline, condensing, and the opening for feed that condenses first still (1) is through pipeline connection hot water and steam injector (4).

2. solution method according to claim 1 is produced elastomeric three still coacervation devices, it is characterized in that the meteorological outlet of still in the described cohesion (2) connects the steam-in of the first still of cohesion (1) through pipeline.

3. solution method according to claim 1 is produced elastomeric three still coacervation devices; The gaseous phase outlet that it is characterized in that the last still of described cohesion (3) connects recovered steam injector (6) through pipeline, and recovered steam injector (6) connects the gas phase inlet of the first still of cohesion (1) through pipeline.

4. solution method according to claim 1 is produced elastomeric three still coacervation devices, it is characterized in that described hot water gets into cohesion first still (1) through hot water and steam injector (4).