CN2112624U

CN2112624U - Device for extracting sodium thoisulfate from waste water

Info

Publication number: CN2112624U
Application number: CN 92201999
Authority: CN
Inventors: 张景奎
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-30
Filing date: 1992-01-30
Publication date: 1992-08-12

Abstract

The utility model relates to a device for extracting the sodium thiosulfate from the waste water, comprising a sulphur absorption kettle, a concentration kettle, a crystallization tank and a suction unit. The utility model causes the waste water exhausted from phynol production plant to carry out the boiling reaction with the sulfur in the device, and obtains the finished sodium thiosulphate through the concentration and the crystallization, except the industrial sewage treatment. The utility model creates the profits of 600, 000 RMB for production plants.

Description

Device for extracting sodium thoisulfate from waste water

The utility model relates to a kind of device that extracts Sulfothiorine from the trade effluent of producing phenol by acidifying method with sulfur, belongs to the chemical industry preparing technical field.

Utilize in the waste water that sulphur acidization manufacture phenol discharged, contain more S-WAT.S-WAT is a kind of important chemical material, and it is soluble in water, exists with solution state in phenolic waste water.One ton of phenol of every production produces 0.5 ton of this waste water approximately.Every year will be discharged the hundreds of tons of this waste water by a factory that produces a few kiloton phenol per year.If it is drained, will waste, very unfortunate.

The purpose of this utility model is a kind of retrieving arrangement of design, and it can be used as the raw material of producing Sulfothiorine with the S-WAT in the waste water, thereby removes the S-WAT in the waste water, produces qualified Sulfothiorine.

The purpose of this utility model realizes in the following way: be to carry out boiling reaction in the raw material adding waste water with sulphur, make Sulfothiorine through concentrated, crystallization again.She Ji extraction element comprises parts such as inhaling sulphur still, concentration kettle, crystallizer tank therefrom, and the utility model is described in further detail below with reference to accompanying drawing.

Fig. 1 is a structural representation of the present utility model.

The utility model mainly forms by inhaling sulphur still 1, concentration kettle 2 and crystallization tank 3 etc. The effect of inhaling the sulphur still is to make the water and the sulphur that contain sodium sulfite carry out boiling reaction at this: The effect of concentration kettle is reacted solution to be carried out vacuum evaporation concentrate, and and then by carry out crystallization in crystallization tank product sodium thiosulfate is separated.

Be connected together through managing 9 and 10 between suction sulphur still 1 and the concentration kettle 2, reacted solution can enter concentration kettle thus. Be connected together through managing 11 between concentration kettle 2 and the crystallization tank 3, the solution after concentrating enters thus crystallization tank and carries out crystallization. For accelerated reaction, a cover rabbling mechanism respectively is set respectively in inhaling sulphur still, concentration kettle and crystallization tank, rabbling mechanism is made up of motor 19, reductor 18 and stirring vane, and the high speed rotary motion of motor becomes the low speed rotation of blade after reductor slows down. Its speed is advisable with the per minute 60-70 right side of turning left. On the top cover of inhaling the sulphur still, also be provided with one and add sulphur hole 28, react required sulphur and drop into since then. The liquid feeding of inhaling sulphur still and concentration kettle utilizes pull of vacuum to carry out, and for this reason, inhales sulphur still and concentration kettle and is connected together with its sealing and through air intake duct 12 and a getter device with lid.

In preparation process, for impurity contained in the solution (as chip, residue etc.) is rejected, also add a vacuum filter 4 in extraction element, the top section of suction filter is through managing 14 waste water that flow into question responses, it also by manage 9 with inhale sulphur still 1 and be connected together; The underclad portion of suction filter is connected together with suction sulphur still and concentration kettle 2 respectively through managing 8 and 10.Like this, the impurity in the waste water, or the impurity of inhaling in the effusive solution of sulphur still all can filter it through suction filter.

The filtering layer of suction filter 4 can be selected stainless (steel) wire (specification is about 200 orders) or filter cloth for use.

In leaching process,, in pipe 14, pipe 8, pipe 9, pipe 10, pipe 12, pipe 13, pipe 11, add

valve

21,22,27,24,25,23 and valve 26 respectively in order to control the flow direction of reactant or resultant.

Employed getter device in the utility model can be made up of hydraulic jet pump 6, water pump 7 and pond 5.Wherein, hydraulic jet pump 6 is connected together respectively with water pump 7, hydraulic jet pump 6 and air suction pipe 12 through managing 15.After water pump started, water began to circulate in this device, thereby forms vacuum in hydraulic jet pump, reached the purpose of finishing mass transport.

During operation, at first Open valve 21 and getter device, waste water through manage 14, vacuum filter 4 and manage 8 and enter and inhale sulphur still 1, sulphur adds from top, steam is heated outside still to 100 ℃, start is stirred, and carries out boiling reaction.After chemical examination reaction ended, Open valve 27 and 24 through vacuum filter 4, made feed liquid enter concentration kettle and carries out evaporation concentration, about chemical examination proportion to 1.5 till.Then Open valve 26, make feed liquid enter crystallizer tank 3 intercrystallines, stirred in the crystallisation process, so that uniform crystal particles.Then crystal grain is dewatered, dry packing, Sulfothiorine gets product.

An embodiment of the present utility model is, inhales the volume of sulphur still, concentration kettle and crystallizer tank and selects 1000 liters for use, and water pump is selected 3 inches impeller pumps for use, and motor is selected 5.5Kw for use, and the vacuum tightness of air suction pipe is the 700-800 millimeter water column.Hydraulic ejector is selected W-100～30001 types for use.

Use this device, can reclaim the S-WAT in the phenolic waste water easily, and utilize it to make Sulfothiorine, the latter is a kind of Chemicals commonly used, and it has a wide range of applications in plating, leather, cotton spinning, papermaking and medicine industry.This device is wiped out and treated insect pests and plant diseases outside the science and engineering industry sewage, also can be that phenol production factory recovery value is 600,000 Sulfothiorine (pressing waste discharge 300-500 ton calculates) from these waste water, has bigger economic benefit and social benefit.

Claims

1, a kind of device that from waste water, extracts Sulfothiorine, it is characterized in that, it is by inhaling sulphur still 1, concentration kettle 2, crystallizer tank 3 compositions such as grade, wherein, the waste water that contains S-WAT is sent in the suction sulphur still 1 through managing 8, inhale between sulphur still 1 and the concentration kettle 2 and be connected together through managing 9 and 10, be connected together with pipe 11 between concentration kettle 2 and the crystallizer tank, inhaling the sulphur still, one stirring mechanism is set respectively in concentration kettle and the crystallizer tank, stirring mechanism is by motor 19, step-down gear 18 and blade are formed, the high speed rotating of motor becomes the low speed rotation of blade after step-down gear slows down, on the top cover of inhaling the sulphur still, also be provided with one and add sulphur hole 28, inhale sulphur still and concentration kettle and link together through air suction pipe 12 and a getter device.

2, the device of extraction Sulfothiorine according to claim 1, it is characterized in that, it also adds a vacuum filter 4, the upper strata of suction filter is through managing the waste water of 14 inflow question responses, it also is connected together with inhaling sulphur still 1 by managing 9, the lower floor of suction filter through manage 8 and 10 respectively with inhale sulphur still and concentration kettle 2 and be connected together.

3, the device of extraction Sulfothiorine according to claim 2 is characterized in that, adds valve 21,22,27,24,25,23 and valve 26 respectively in pipe 14, pipe 8, pipe 9, pipe 10, pipe 12, pipe 13, pipe 11.

4, the device of extraction Sulfothiorine according to claim 3, it is characterized in that, described getter device is made up of hydraulic jet pump 6, water pump 7 and pond 5, wherein, hydraulic jet pump 6 through manage 15 with water pump 7, hydraulic jet pump 6 through manage 17 and pond 5, hydraulic jet pump 6 be connected together respectively with air suction pipe 12.