CN1211452C - Apparatus and process for producing efficient water reducing agent - Google Patents
Apparatus and process for producing efficient water reducing agent Download PDFInfo
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- CN1211452C CN1211452C CN 03133484 CN03133484A CN1211452C CN 1211452 C CN1211452 C CN 1211452C CN 03133484 CN03133484 CN 03133484 CN 03133484 A CN03133484 A CN 03133484A CN 1211452 C CN1211452 C CN 1211452C
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- naphthalene
- sulfonation reaction
- reducing agent
- liquid
- water reducing
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Abstract
The present invention provides production equipment and a production technology of a high-efficiency water reducing agent. The production equipment comprises the existing sulfonation reaction kettle, a condensation reaction kettle, a heat conducting oil furnace, a heat conducting oil pipeline, a naphthalene melting tank and an underliquid oil pump, a liquid metering tank, a liquid naphthalene delivery pipeline, etc. The production technology of the high-efficiency water reducing agent comprises the steps that the heat conducting oil in the heat conducting oil furnace is utilized to melt industrial solid naphthalene in the naphthalene melting tank; the liquid naphthalene is sent into the liquid naphthalene metering tank to be metered and is put into the condensation reaction kettle; condensation is completed, and neutralization is finally completed to generate the liquid naphthalene series high-efficiency water reducing agent. When the equipment and the technology of the present invention are utilized, the purposes of large amounts of energy saving, long service life of the equipment, high rate of utilization of the equipment, convenient control of production processes and workers' labor intensity reduction are achieved. The present invention has obvious economic benefit.
Description
Technical field
The invention belongs to the Chemicals production field, particularly a kind of high efficiency water reducing agent production unit and production technique thereof.
Background technology
High efficiency water reducing agent is a kind of Chemicals, is to be main raw material with the NAPTHALENE FLAKES. (INDUSTRIAL GRADE, forms liquid naphthalene series high-efficiency water-reducing agent product through superfusion naphthalene, sulfonation reaction, hydrolysis reaction, condensation reaction, neutralization reaction.In the existing high efficiency water reducing agent production technology, all be to adopt steam as main thermal source, its technological process is, at first in the sulfonation reaction still, drop into solid industrial naphthalene, and to feed pressure to sulfonation reaction still chuck be the steam of 0.6MPa, is molten into the liquid naphthalene through solid naphthalene after 3 hours, after the liquid naphthalene reaches certain temperature, the vitriol oil of adding 98% carries out sulfonation reaction in the sulfonation reaction still, and the reaction times is 5 hours.Sulfonation reaction is put into the condensation reaction still with material after finishing, and stops to feed steam in the sulfonation reaction still, for the next production cycle prepares.There is following defective in this production technique:
1, sulfonation reaction still chuck is periodical change under the 0.6MPa vapor pressure, to producing detrimentally affect equipment life.
2, owing in the sulfonation reaction still, drop into solid industrial naphthalene, smash the enamel in the reactor easily, shorten its work-ing life.
3, in whole molten naphthalene, sulfonation reaction process, steam consumption is very big, causes the waste of the energy.
4, the production cycle long, labor strength is bigger than imitating; Be not easy to the control of workman's production operation and production process.
Therefore need a kind of new production unit and production technique thereof.
Summary of the invention
The purpose of this invention is to provide a kind of new high efficiency water reducing agent production unit and production technique thereof of utilizing thermal oil as thermal source.
According to high efficiency water reducing agent production unit of the present invention, comprise sulfonation reaction still, sour scale tank, condensation reaction still, it is characterized in that this equipment also is provided with heat-conducting oil furnace, heat-conducting oil furnace hot oil pump, naphthalene melting slot, be contained in the submerged pump in the naphthalene melting slot, heat-conducting oil furnace is connected with naphthalene melting slot, sulfonation reaction still with the heat-conducting oil furnace hot oil pump by the heat conduction oil circuit, and submerged pump is connected with the sulfonation reaction still by the liquid naphthalene pipeline.
According to high efficiency water reducing agent production unit of the present invention, connecting pipeline between described naphthalene melting slot and the sulfonation reaction still is provided with the liquid naphthalene scale tank, the liquid naphthalene pipeline that is connected of liquid naphthalene scale tank comprises the intake line that is connected with submerged pump therewith, the delivery conduit that is connected with the sulfonation reaction still, the return pipeline that is connected with naphthalene melting slot.
According to high efficiency water reducing agent production unit of the present invention, the capacity of described naphthalene melting slot is complementary with the capacity of the sulfonation reaction still that is connected, and described sulfonation reaction still can be provided with more than one.
According to high efficiency water reducing agent production unit of the present invention, be equipped with by-pass valve control on described each section thermal conductive oil pipeline and the liquid naphthalene transfer line, whole thermal conductive oil pipeline forms the recycle system.
Utilize the high efficiency water reducing agent production technique of high efficiency water reducing agent production unit, comprise sulfonation reaction, condensation reaction, neutralization reaction, it is characterized in that comprising the following steps:
1) to heat-conducting oil furnace filling heat-conductive oil and start heat-conducting oil furnace,
2) drop into solid industrial naphthalene in naphthalene melting slot, the thermal oil after will heating by thermal conductive oil pipeline is delivered in the well heater in the naphthalene melting slot, makes solid industrial naphthalene be fused into liquid naphthalene,
3) by the submerged pump in the naphthalene melting slot liquid naphthalene is squeezed in the sulfonation reaction still, the thermal oil after will heating by thermal conductive oil pipeline is simultaneously delivered in the sulfonation reaction still chuck, it is heated,
4) liquid naphthalene in the sulfonation reaction still adds 98% the vitriol oil, and finishes sulfonation reaction under controlled temperature, and then material is put into the condensation reaction still and finished condensation reaction,
5) thermal oil returns heat-conducting oil furnace behind the well heater of naphthalene melting slot and sulfonation reaction still.
According to high efficiency water reducing agent production technique of the present invention, by the submerged pump in the naphthalene melting slot liquid naphthalene is being squeezed into the liquid naphthalene scale tank earlier, to squeeze into again after metering in the sulfonation reaction still, remaining liquid naphthalene is put back in the naphthalene melting slot and is reheated in the liquid naphthalene scale tank.
According to above-mentioned production technique of the present invention, should keep a close eye on the temperature control of each operation, mainly be: with the heating and temperature control of naphthalene melting slot at 200 ℃～260 ℃; The sulfonation reaction temperature of charge is controlled at 145 ℃～170 ℃; With the pressure-controlling of thermal oil at 0.01～0.05MPa.
Adopt high efficiency water reducing agent production unit of the present invention and production technique thereof, replace steam as thermal source, change the molten naphthalene of the periodicity in past into continuous heating and a continuous naphthalene of throwing, compared with prior art, have following advantage with thermal oil:
1, the sulfonation reaction still is in continuous balanced heating status, helps improving equipment life.Simultaneously, in the sulfonation reaction still be owing to join through metering, the controlled liquid naphthalene of temperature, can not damage the enamel of reactor, therefore can make the sulfonation reaction still life-span prolong more than 1 year.
2, thermal oil recycles, and does not have steam consumption fully, can save a large amount of energy, and the saving amount is about 30%.
3, because the sulfonation reaction still is no longer born the task of melting solid NAPTHALENE FLAKES. (INDUSTRIAL GRADE, thereby significantly improved the utilization ratio of sulfonation reaction still, production efficiency can improve 30%.
4, the used thermal oil temperature and pressure of each operation is controlled automatically by heat-conducting oil furnace temperature, pressure Controlling System, and operator only need carry out temperature and pressure and set, thereby has improved the accuracy of temperature, pressure control, and is easy to operate.
5, with the pressure-controlling of thermal oil at lower level, only be original 1/12 of the vapor pressure that uses, and by the control automatically of heat conduction furnace system, so production process is safer, reliable.
Description of drawings
Fig. 1 is a production unit structural representation of the present invention.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention.
As shown in Figure 1, high efficiency water reducing agent production unit of the present invention, comprise sulfonation reaction still 7, sour scale tank 6, condensation reaction still, it is characterized in that this equipment also is provided with heat-conducting oil furnace 1, heat-conducting oil furnace hot oil pump 2, naphthalene melting slot 4, be contained in the submerged pump 3 in the naphthalene melting slot 4, heat-conducting oil furnace 1 is connected with naphthalene melting slot 4, sulfonation reaction still 7 with heat-conducting oil furnace hot oil pump 2 by the heat conduction oil circuit, and submerged pump 3 is connected with sulfonation reaction still 7 by the liquid naphthalene pipeline.
As shown in the figure, high efficiency water reducing agent production unit of the present invention, on the connecting pipeline between described naphthalene melting slot 4 and the sulfonation reaction still 7, be provided with liquid naphthalene scale tank 5, the liquid naphthalene pipeline that liquid therewith scale tank 5 is connected comprises the intake line that is connected with submerged pump 3, the delivery conduit that is connected with sulfonation reaction still 7, the return pipeline that is connected with naphthalene melting slot 4.
According to high efficiency water reducing agent production unit of the present invention, the capacity of described naphthalene melting slot 4 is complementary with the capacity of the sulfonation reaction still 7 that is connected, and described sulfonation reaction still 7 can be provided with more than one.For example when 3 3000L sulfonation reaction stills were set, the liquid naphthalene of naphthalene melting slot 4 fusings should satisfy the quantity-produced requirement of these reactors.
As shown in the figure, according to high efficiency water reducing agent production unit of the present invention, be equipped with by-pass valve control on described each section thermal conductive oil pipeline and the liquid naphthalene transfer line, whole thermal conductive oil pipeline forms the recycle system.
Utilize the high efficiency water reducing agent production technique of high efficiency water reducing agent production unit of the present invention, form by the following step:
1) to heat-conducting oil furnace 1 filling heat-conductive oil and start heat-conducting oil furnace 1,
2) drop into solid industrial naphthalene in naphthalene melting slot 4, the thermal oil after will heat by thermal conductive oil pipeline is delivered in the interior well heater 8 of naphthalene melting slot 4, makes solid industrial naphthalene be fused into liquid naphthalene,
3) by the submerged pump 3 in the naphthalene melting slot 4 liquid naphthalene is squeezed in the sulfonation reaction still 7, the thermal oil after will heating by thermal conductive oil pipeline is simultaneously delivered in the sulfonation reaction still chuck, it is heated,
4) liquid naphthalene in sulfonation reaction still 7 adds 98% the vitriol oil, and finishes sulfonation reaction under controlled temperature, and then material is put into the condensation reaction still and finished condensation reaction,
5) thermal oil returns heat-conducting oil furnace 1 behind the well heater 8 of naphthalene melting slot 4 and sulfonation reaction still 7.
Under the situation that liquid naphthalene scale tank 5 is set, production technique of the present invention is by the submerged pump in the naphthalene melting slot 4 liquid naphthalene to be squeezed into liquid naphthalene scale tank 5 earlier, squeeze into after metering in the sulfonation reaction still 7, remaining liquid naphthalene is put back in the naphthalene melting slot 4 and is reheated in the liquid naphthalene scale tank again.
As water reducer production technique of the present invention important component part, control the thermal oil temperature and the thermal oil pressure of each operation exactly well, comprise that heating and temperature control with naphthalene melting slot 4 is at 200 ℃～260 ℃; The sulfonation reaction temperature of charge is controlled at 145 ℃～170 ℃; With the pressure-controlling of thermal oil at 0.01～0.05MPa.
Claims (8)
1, a kind of high efficiency water reducing agent production unit, comprise sulfonation reaction still (7), the sour scale tank (6) that is connected of reactor (7) therewith, the condensation reaction still, it is characterized in that this equipment is provided with heat-conducting oil furnace (1), the heat-conducting oil furnace hot oil pump (2) and the naphthalene melting slot (4) that are connected of heat-conducting oil furnace (1) therewith, be contained in the submerged pump (3) in the naphthalene melting slot (4), heat-conducting oil furnace (1) is by heat conduction oil circuit and heat-conducting oil furnace hot oil pump (2) and naphthalene melting slot (4), sulfonation reaction still (7) is connected, submerged pump (3) is connected with sulfonation reaction still (7) by pipeline, and this connecting pipeline is provided with liquid bitter edible plant scale tank (5).
2, high efficiency water reducing agent production unit according to claim 1, it is characterized in that comprising the intake line that is connected with submerged pump (3) at the liquid naphthalene pipeline that is connected with described liquid scale tank (5), the delivery conduit that is connected with sulfonation reaction still (7), the return pipeline that is connected with naphthalene melting slot (4).
3, high efficiency water reducing agent production unit according to claim 1, it is characterized in that the capacity of described naphthalene melting slot (4) and the total volume of the sulfonation reaction still (7) that is connected are complementary, described sulfonation reaction still (7) can be provided with more than one, and the liquid naphthalene of naphthalene melting slot (4) fusing should satisfy the requirement of reactor quantity-produced.
4, high efficiency water reducing agent production unit according to claim 1 is characterized in that being equipped with by-pass valve control on described each section thermal conductive oil pipeline and the liquid naphthalene transfer line, and whole thermal conductive oil pipeline forms the recycle system.
5, a kind of high efficiency water reducing agent production technique of utilizing the described high efficiency water reducing agent production unit of claim 1 comprises sulfonation reaction, condensation reaction, neutralization reaction, it is characterized in that comprising the following steps:
1) to heat-conducting oil furnace (1) filling heat-conductive oil and start heat-conducting oil furnace (1),
2) drop into solid industrial naphthalene in naphthalene melting slot (4), the thermal oil after will heating by thermal conductive oil pipeline is delivered in the interior well heater (8) of naphthalene melting slot (4), makes solid industrial naphthalene be fused into liquid naphthalene,
3) by the submerged pump (3) in the naphthalene melting slot (4) liquid naphthalene is squeezed in the sulfonation reaction still (7), the thermal oil after will heating by thermal conductive oil pipeline is simultaneously delivered in the sulfonation reaction still chuck, it is heated,
4) liquid naphthalene in sulfonation reaction still (7) adds 98% the vitriol oil, and the sulfonation reaction temperature of charge is controlled under 145 ℃～170 ℃ temperature finishes sulfonation reaction, and then material is put into the condensation reaction still and finished condensation reaction,
5) thermal oil is flowed through and is returned heat-conducting oil furnace (1) behind the well heater (8) of naphthalene melting slot (4) and the sulfonation reaction still (7).
6, high efficiency water reducing agent production technique according to claim 5, it is characterized in that liquid naphthalene being squeezed into liquid naphthalene scale tank (5) earlier by the submerged pump in the naphthalene melting slot (4), squeeze into after metering in the sulfonation reaction still (7), remaining liquid naphthalene is put back in the naphthalene melting slot (4) and is reheated in the liquid naphthalene scale tank again.
7, high efficiency water reducing agent production technique according to claim 5 is characterized in that heating and temperature control with naphthalene melting slot (4) is at 200 ℃～260 ℃.
8, high efficiency water reducing agent production technique according to claim 5 is characterized in that pressure-controlling with thermal oil is at 0.01～0.05MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133484 CN1211452C (en) | 2003-06-20 | 2003-06-20 | Apparatus and process for producing efficient water reducing agent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03133484 CN1211452C (en) | 2003-06-20 | 2003-06-20 | Apparatus and process for producing efficient water reducing agent |
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| CN1470590A CN1470590A (en) | 2004-01-28 |
| CN1211452C true CN1211452C (en) | 2005-07-20 |
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| CN 03133484 Expired - Fee Related CN1211452C (en) | 2003-06-20 | 2003-06-20 | Apparatus and process for producing efficient water reducing agent |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101723860B (en) * | 2009-12-08 | 2013-04-24 | 上虞吉龙化学建材有限公司 | Method for preparing naphthalene series water reducing agent |
| CN103923242B (en) * | 2014-04-19 | 2015-04-08 | 商南天和泥浆有限公司 | Hydrolyzed polyacrylonitrile ammonium salt production system |
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