CN100475695C - Method and apparatus for producing native soda from refused silicon slags - Google Patents

Method and apparatus for producing native soda from refused silicon slags Download PDF

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CN100475695C
CN100475695C CNB2007100150013A CN200710015001A CN100475695C CN 100475695 C CN100475695 C CN 100475695C CN B2007100150013 A CNB2007100150013 A CN B2007100150013A CN 200710015001 A CN200710015001 A CN 200710015001A CN 100475695 C CN100475695 C CN 100475695C
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pump
cylinder
filter screen
storing chamber
road filter
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CN101074100A (en
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陈玉风
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Abstract

A method for producing native soda from waste silicon residue and its apparatus are disclosed. The process is carried out by regenerating while converting native soda, transferring and circulation utilizing. It's cheap, simple and rational and has no environmental pollution.

Description

Utilize the method and the device of discarded white residue production bubble flower alkali
Technical field
The invention belongs to field of inorganic chemical engineering, it is the method for industrial refuse being handled recovery, specifically, be to regenerate at the industrial refuse that silica gel and bubble flower alkali enterprise are discharged to make bubble flower alkali cyclic utilization method, a kind of method and device that utilizes discarded white residue production bubble flower alkali.
Background technology
White residue is to produce the waste that silica gel and bubble flower alkali enterprise produce in process of production, i.e. industrial refuse, and these wastes are general to divide two kinds: a kind ofly do not conform to specification of quality, land pollution; Perhaps broken pollution failure, being of having is acid, and being of having is neutral, is called discarded silica gel; Another kind is an alkali silicon mud, is through the material of press filtration or post precipitation discharging, is alkalescence, and the grey black paste is corrosive, and contains moisture, metal ion, sulfide, sodium hydroxide and silicon-dioxide, and its main useful component is silicon-dioxide and sodium hydroxide.What these white residues had is discharged in the sea, have buried or be deposited on the soil, and not even a blade of grass grows to stack part, because enterprise constantly produces, these white residues are also in continuous increase.
At present,, do not find scientific and effective method as yet, so all handle with the method for burying or piling up to the utilization of white residue.Because the storage of silicon mud is very big, and produces endlessly, environment a large amount of pollutions have been caused.Both take a large amount of soils after these discarded white residue dischargings, polluted environment again, caused the waste of the energy simultaneously again.
Therefore, need a kind of method that can utilize discarded silica gel and alkali silicon mud to produce the silicon series products badly, alleviating pollution, and fully reclaim and utilize the main useful component silicon-dioxide of discarded white residue and sodium hydroxide regeneration to produce bubble flower alkali environment.
Summary of the invention
The invention provides a kind of method and device that utilizes discarded white residue production bubble flower alkali, solved after a large amount of at present discarded white residues dischargings and not only to have taken a large amount of soils, but also polluted environment, cause the problem of energy dissipation simultaneously.
For solving the problems of the technologies described above, the present invention is achieved by the following technical solutions:
A kind of method of utilizing discarded white residue production bubble flower alkali comprises the steps:
1) will discard silica gel and mix, drop into colloidal mill with alkali silicon mud, levigate, enter stirred pot, thin up to 10~13 degree Beaume stir;
2) material with 10~13 degree Beaume enters trash eliminator through first pump, carries out solid-liquid separation through the separator first road filter screen, and isolated feed liquid enters first storing chamber through the described first road filter screen, and the material in the first road filter screen is discharged by discharge opening;
3) feed liquid of separator first storing chamber enters the second road filter screen in the separator by discharge port through second pump, under the effect of second pump, carry out solid-liquid separation once more, the feed liquid that leaches is entered separator second storing chamber through the described second road filter screen, the feed liquid of described second storing chamber enters the raw material jar through the 3rd pump, material in the described second road filter screen enters the 3rd storing chamber through the spigot discharge of cylinder bottom, and the material of the 3rd storing chamber enters pickling tank by the 4th pump through relief outlet;
4) to add concentration be 1~6% dilute sulphuric acid to the material that will enter pickling tank, with the 5th pump circulation cleaning 100~140 minutes, left standstill 100~140 minutes, added water washing again 50~70 minutes, left standstill delaminating deposition 100~140 minutes;
5) upper strata sour water in the pickling tank is entered the spent acid pond, detecting sedimentation material pH value and be at 5~6 o'clock leaches, leaching material is silicon-dioxide, entering described raw material jar through the 5th pump mixes with the feed liquid in the described raw material jar, add certain amount of sodium hydroxide behind the detected silica content, after 50~70 minutes, can obtain rare bubble flower alkali of 10~13 degree Beaume through the circulation of the 6th pump, the adjustment of modulus height is determined by the quantity of the content adding sodium hydroxide of the contained silicon-dioxide of feed liquid;
6) the rare bubble flower alkali through adjusting modulus can reach the bubble flower alkali of target call through evaporation concentration.
In technique scheme, the filter screen of described colloidal mill is 300 orders~1000 orders.
In technique scheme, the described first road filter screen is 300 orders, and the described second road filter screen is 600 orders.
In technique scheme, described step 6 also can for: go into feeder through the rare bubble flower alkali pump of adjusting modulus and add quantitative sodium silicate solid, also can obtain the bubble flower alkali concn of national requirements through steam 0.4~0.6MPa pressure in 4~5 hours.
A kind of device that utilizes discarded white residue production bubble flower alkali, described device is a trash eliminator, described trash eliminator comprises first filtration unit, second filtration unit and the 3rd storing chamber, described first filtration unit, second filtration unit and the 3rd storing chamber are arranged in the airtight large cylinder, described first filtration unit comprises the two cylinder I up and down of the first road filter screen connection that is arranged on large cylinder central authorities and is sleeved on the iron flask cover of two cylinder I outsides up and down, form annular first storing chamber between described two cylinder I up and down and the iron flask cover, described cylinder I down bottom connects feed-pipe and the waste residue outlet pipe that be arranged in parallel, described feed-pipe connects first pump, and described waste residue outlet pipe connects first valve;
Described second filtration unit comprises six covers, the two cylinder II up and down that are distributed in the two cylinder I same structures up and down in described iron flask cover outer that make a circle and described first filtration unit, connecting the second road filter screen respectively between the two cylinder II up and down at this six cover, described cylinder II down is communicated with described first storing chamber by second pump, described cylinder II down bottom communicates by the pipeline series connection, described cylinder II down bottom also has spigot discharge, form second storing chamber between described iron flask cover and the large cylinder, described second storing chamber is connected with the raw material jar by the 3rd pump, and described raw material jar is provided with the 6th pump;
The bottom interlayer of described large cylinder is the 3rd storing chamber that is obliquely installed, and lower is a relief outlet, and relief outlet is connected with pickling tank by the 4th pump, and described pickling tank is provided with second valve and the 5th pump.
In technique scheme, the first road filter screen of described trash eliminator is 300 orders, and the described second road filter screen is 600 orders.
Compared with prior art; advantage of the present invention and positively effect are: the problem that the present invention exists silica gel for a long time and bubble flower alkali manufacturing enterprise by trash eliminator; promptly the discarded white residue of a large amount of dischargings causes the problem of the environmental pollution and the wasting of resources; provide the discarded white residue production bubble of a kind of utilization flower alkali to carry out cyclic utilization method; this regenerating waste white residue transforms bubble and spends the method for alkali both to protect effective utilization in soil; reduced environmental pollution; reduced the waste of the energy again; the bubble flower alkali that regeneration transforms is delivered directly to production silica gel or bubble flower alkali enterprise uses, thereby formed recycling economy.Utilize the part sour water of discharging in the production of silica gel enterprise to wash, the discharging of neutralization back can not produce pollution once again.The present invention has not only reduced the treating refuse expense for silica gel, bubble flower alkali manufacturing enterprise, and has fallen at the end material cost, and technology is reasonable, and equipment is simple, and cost is extremely low, and it is worthwhile to implement.
Bubble that discarded white residue is produced flower alkali can be up to state standards, the bubble flower alkali that regeneration transforms be up to state standards its result such as following table:
Figure C20071001500100071
The purposes of bubble flower alkali is very extensive, almost spreads all over each department of national economy.Being used to make various silicates products such as silica gel, white carbon black, zeolite molecular sieve, Starso, silicon sol, layer silicon and instant powdery bubble flower alkali, sodium-potassium silicate at chemical system, is the basic raw material of silicon compound; Being indispensable raw material in the washing composition such as washing powder, soap in light industry, also is water softener, settling agent; In textile industry, be used to help dye, bleaching and sizing; In mechanical industry, be widely used in casting, emery wheel manufacturing and anticolodal etc.; In building trade, be used to make rapid hardening cement, acid-proof cement dubbin, soil-solidified-agent, refractory materials etc.; Agriculturally can make the silicon element fertilizer material; Bubble flower alkali is widely used in the tackiness agent of cardboard (fluting board) carton as tackiness agent in addition.
Description of drawings
Fig. 1 is that synoptic diagram is launched in the side of the large cylinder of described trash eliminator of the present invention; Wherein: 10, first filtration unit; 11, the first road filter screen; 12, go up cylinder I; 13, following cylinder I; 131, discharge port; 14, iron flask cover; 15, first storing chamber; 16, feed-pipe; 17, first pump; 18, waste residue outlet pipe; 181, first valve; 19, second pump; 20, second filtration unit; 21, the second road filter screen; 22, go up cylinder II; 23, following cylinder II; 231, spigot discharge; 24, pipeline; 25, second storing chamber; 26, the 3rd pump; 30, the 3rd storing chamber; 31, the 4th pump; 32, relief outlet; 40, raw material jar; 41, the 6th pump; 50, pickling tank; 51, the 5th pump; 52, second valve; 60, large cylinder.
Embodiment
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Embodiment one, add 700kg alkali silicon mud with the discarded silica gel of 300kg and add water input colloidal mill (not shown on the figure), the filter screen of colloidal mill is 300 orders, feed stirred pot (not shown on the figure) while grinding, all ground enter stirred pot after, reach 10~13 degree Beaume with the baume degree meter test, as do not reach thin up to 10~13 degree Beaume, open first pump 17 through feed-pipe 16 suction trash eliminators, enter first road, 300 mesh filter screens 11 of first filtration unit 10, among the cylinder I13, left standstill 30 minutes under last cylinder I12 reaches, the above feed liquid of 300 orders enters first storing chamber 15, opening the following material slag of first valve, 181,300 orders discharges through waste residue outlet pipe 18;
Open second pump 19 then, with second road 600 mesh filter screens 21 of the first storing chamber feed liquid by pipeline 24 input second filtration unit 20, go up cylinder II22 and down among the cylinder II23, the above feed liquid of 600 orders enters second storing chamber 25, the following material of 600 orders enters the 3rd storing chamber 30 by spigot discharge 231, after 30 minutes, close second pump 19, open the 3rd pump 26, with second storing chamber feed liquid input raw material jar 40, close the 3rd pump 26 after 10 minutes, open the 4th pump 31 that the 3rd storing chamber connects, the 3rd storing chamber material is put into pickling tank 50 through relief outlet 32;
With adding the 1000kg concentration in the pickling tank 50 is 2% dilute sulphuric acid, with the 5th pump 51 circulation cleanings 2 hours, close the 5th pump, after feed liquid leaves standstill 2 hours in the pickling tank, opening pickling tank second valve 52 bleeds off pickling tank internal upper part water, add the 1000kg water washing again, left standstill 2 hours, bleed off upper water, with in the pH detection paper jar during material pH5-6, material in the jar is squeezed into raw material jar 40 with the 5th pump 51, open the 6th pump 41 and stopped the 6th pump in 2 hours with the interior feed liquid mixed cycle of raw material jar, two parts of mixed feed liquid sampling with volumetry detected silica content, are regulated with sodium hydroxide simultaneously, making part sampling Detection of winning is 8.6% to dioxide-containing silica, second part is detected degree Beaume is 13 get final product, and the feed liquid of this moment has just formed rare bubble flower alkali of 3.2 moulds, just can be delivered directly to silica gel or bubble flower alkali enterprise and solid and steep and spend alkali to mix to use also can evaporate to reach the national standard of degree Beaume as 39-41.
Said process repeats, and after the formation successive production process, each pump can open wide simultaneously.
The raw material jar is the container that is used for holding final rare bubble flower alkali product, and the higher rare bubble flower alkali of concentration can obtain through evaporation concentration in the raw material jar if desired.Feeder is the container that rare bubble flower alkali adds sodium silicate solid production bubble flower alkali.
Trash eliminator of the present invention has reduced the separable programming and the time of material, because separator is totally enclosed,, in separator internal recycling process, make that easily the impurity that sticks on the material becomes flexible, softens, peels off, thereby be relatively easy to remove impurity at material.
Certainly; above-mentioned explanation is not to be limitation of the present invention; the present invention also is not limited in above-mentioned giving an example, and variation, remodeling, interpolation or replacement that those skilled in the art are made in essential scope of the present invention also should belong to protection scope of the present invention.

Claims (6)

1. one kind is utilized discarded white residue production bubble to spend the method for alkali, it is characterized in that: comprise the steps,
1) will discard silica gel and mix, drop into colloidal mill with alkali silicon mud, levigate, enter stirred pot, thin up to 10~13 degree Beaume stir;
2) material with 10~13 degree Beaume enters trash eliminator through first pump, carries out solid-liquid separation through the separator first road filter screen, and isolated feed liquid enters first storing chamber through the described first road filter screen, and the material in the first road filter screen is discharged by discharge opening;
3) feed liquid of separator first storing chamber enters the second road filter screen in the separator by discharge port through second pump, under the effect of second pump, carry out solid-liquid separation once more, the feed liquid that leaches is entered separator second storing chamber through the described second road filter screen, the feed liquid of described second storing chamber enters the raw material jar through the 3rd pump, material in the described second road filter screen enters the 3rd storing chamber through the spigot discharge of cylinder bottom, and the material of the 3rd storing chamber enters pickling tank by the 4th pump through relief outlet;
4) to add concentration be 1~6% dilute sulphuric acid to the material that will enter pickling tank, with the 5th pump circulation cleaning 100~140 minutes, left standstill 100~140 minutes, added water washing again 50~70 minutes, left standstill delaminating deposition 100~140 minutes;
5) upper strata sour water in the pickling tank is entered the spent acid pond, detecting sedimentation material pH value and be at 5~6 o'clock leaches, leaching material is silicon-dioxide, entering described raw material jar through the 5th pump mixes with the feed liquid in the described raw material jar, add certain amount of sodium hydroxide behind the detected silica content, after 50~70 minutes, promptly obtain rare bubble flower alkali of 10~13 degree Beaume through the circulation of the 6th pump, the adjustment of modulus height is determined by the quantity of the content adding sodium hydroxide of the contained silicon-dioxide of feed liquid;
6) the rare bubble flower alkali through adjusting modulus promptly reaches the bubble flower alkali of target call through evaporation concentration.
2. the method for the discarded white residue production bubble of utilization according to claim 1 flower alkali, it is characterized in that: the filter screen of described colloidal mill is 300 orders~1000 orders.
3. the method for the discarded white residue production bubble of utilization according to claim 1 and 2 flower alkali, it is characterized in that: the described first road filter screen is 300 orders, the described second road filter screen is 600 orders.
4. the method for the discarded white residue production bubble of utilization according to claim 1 flower alkali, it is characterized in that: described step 6 or be: go into feeder through rare bubble flower alkali pump of adjusting modulus and add quantitative sodium silicate solid, obtained the bubble flower alkali concn of national requirements through steam 0.4~0.6MPa pressure in 4~5 hours.
5. one kind is utilized discarded white residue production bubble to spend the device of alkali, it is characterized in that: described device is a trash eliminator, described trash eliminator comprises first filtration unit, second filtration unit and the 3rd storing chamber, described first filtration unit, second filtration unit and the 3rd storing chamber are arranged in the airtight large cylinder, described first filtration unit comprises the two cylinder I up and down of the first road filter screen connection that is arranged on large cylinder central authorities and is sleeved on the iron flask cover of two cylinder I outsides up and down, form annular first storing chamber between described two cylinder I up and down and the iron flask cover, described cylinder I down bottom connects feed-pipe and the waste residue outlet pipe that be arranged in parallel, described feed-pipe connects first pump, and described waste residue outlet pipe connects first valve;
Described second filtration unit comprises six covers, the two cylinder II up and down that are distributed in the two cylinder I same structures up and down in described iron flask cover outer that make a circle and described first filtration unit, connecting the second road filter screen respectively between the two cylinder II up and down at this six cover, described cylinder II down is communicated with described first storing chamber by second pump, described cylinder II down bottom communicates by the pipeline series connection, described cylinder II down bottom also has spigot discharge, form second storing chamber between described iron flask cover and the large cylinder, described second storing chamber is connected with the raw material jar by the 3rd pump, and described raw material jar is provided with the 6th pump;
The bottom interlayer of described large cylinder is the 3rd storing chamber that is obliquely installed, and lower is a relief outlet, and relief outlet is connected with pickling tank by the 4th pump, and described pickling tank is provided with second valve and the 5th pump.
6. the device of the discarded white residue production bubble of utilization according to claim 5 flower alkali, it is characterized in that: the described first road filter screen is 300 orders, the described second road filter screen is 600 orders.
CNB2007100150013A 2007-06-12 2007-06-12 Method and apparatus for producing native soda from refused silicon slags Expired - Fee Related CN100475695C (en)

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CN102616951B (en) * 2012-03-28 2013-10-09 李明琛 Method for comprehensively treating and utilizing sewage and sludge produced during silica gel production
CN103818913A (en) * 2013-05-08 2014-05-28 福建龙岩精博化工科技有限公司 Method for recovering sodium silicate from wastes produced in production process of white carbon black
CN104436856A (en) * 2013-09-22 2015-03-25 上海运安制版有限公司 Silica gel raw material filtering method and apparatus
CN104772054B (en) * 2015-03-11 2017-03-29 遂昌县三凡化工有限公司 Energy-conserving and environment-protective liquid sodium silicate production process and process equipment
CN107042028B (en) * 2017-03-24 2018-12-21 佛山科凝新材料科技有限公司 A kind of purifying plant and method of purification of waterglass
CN109748577A (en) * 2019-03-29 2019-05-14 襄阳聚力新材料科技有限公司 A kind of intermediate frequency furnace ramming mass and preparation method thereof

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