CN204996160U - A evaporated crystallizer that is used for no transmission of organic matter solution - Google Patents
A evaporated crystallizer that is used for no transmission of organic matter solution Download PDFInfo
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- CN204996160U CN204996160U CN201520670873.3U CN201520670873U CN204996160U CN 204996160 U CN204996160 U CN 204996160U CN 201520670873 U CN201520670873 U CN 201520670873U CN 204996160 U CN204996160 U CN 204996160U
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Abstract
The utility model discloses an evaporated crystallizer that is used for no transmission of organic matter solution belongs to chemical industry equipment technical field. Include that the inner chamber middle part of lower barrel sets up the draft tube by the toper section of thick bamboo that connects gradually, cooling cylinder, barrel and go up the barrel down on going, the lateral wall of a toper section of thick bamboo is provided with the circulation fluid return bend, and the plane that the exit end of circulation fluid return bend formed is parallel with the lower terminal surface of draft tube, and the end face centre of the exit end of circulation fluid return bend and the end face centre of draft tube lie in same straight line, and the exit end setting of circulation fluid return bend is below the lower extreme opening of draft tube in the 100mm or in the 200mm of top. The utility model discloses when having avoided ejection of compact operation, crystalline grain erodees the feed liquor pipe, mother liquor tube lets in, makes crystalline grain be difficult for the deposit at the base of evaporator, solves crystalline grain to transmission's abrasion, multiple spot leakage safety problem, and simple structure has advocated energy saving and emission reduction, improves crystallization effect, can sprout the higher large granule crystal of crystal purity.
Description
Technical field
The utility model relates to a kind of crystallizing evaporator, in particular for the crystallizing evaporator without transmission device of organic solution, belongs to technical field of chemical.
Background technology
In the industries such as chemical industry, medicine, light industry, many solid products are had to be obtained by crystallization from solution, from solution, crystallization is carried out under the oversaturated condition of solution, according to the difference producing supersaturation mode, crystallization process can be divided into crystallisation by cooling, evaporative crystallization and reactive crystallization three types, and wherein evaporative crystallization application is comparatively extensive.
The process majority of solution evaporative crystallization carries out in crystallizing evaporator, conventional crystallizing evaporator is that (DTB is the abbreviation of drafttubebattle to DTB crystallizer, mean guide shell, baffle plate two words, so the type should be called guide shell, baffle type crystallizer).This crystallizer belongs to a kind of typical internal circulation crystallizer for crystal slurry, primarily of shell, guide shell, baffle plate, demister, agitator or other driving members, eluriates the parts compositions such as cylinder.During operation, the saturated feed liquid of heat rises to liquid-covered under agitator impetus in guide shell, then below is turned to, flow at the bottom of crystallizer along the circular passage between guide shell and plate washer, be inhaled into again the lower end of guide shell, circulation like this endlessly, form the condition close to good mixing, solution carries out evaporative cooling in crystallizer, crystallize out.
The driving members such as agitator are generally arranged on top or the bottom of the evaporation tank body of crystallizer, be arranged on top easily crystallization scar on the driving member of agitator, when driving member vibrates, also can make the wall crystallization scar of crystallizer, be arranged on bottom and can avoid the problems referred to above, but need to consider sealing problem, therefore agitator is installed very difficult thereupon; And agitator has corrosivity once run into solution and contains crystalline particle, the driving members such as agitator are not only subject to the corrosion of solution, are also subject to the abrasion of crystalline particle, have a strong impact on the service life of the driving members such as agitator.Agitator drives hot saturated feed solution flow simultaneously, and circulation rate is fast, and in the graded region of crystallizer, the time of staying is too short, growing up not only bad for crystal, but also the large grain size born may be damaged, broken grain body easily circulates with feed liquid, damages the recycle units such as guide shell.
Chinese patent discloses one " crystallizing evaporator for high slat-containing wastewater " (patent No.: CN201520066534), this evaporative crystallization is applicable to high slat-containing wastewater, its basal cross section shape is the apple shape that middle part raises up, complex structure, in discharging operation, crystal grain produces certain washing away to feed tube, at the bottom of a small amount of grained deposits cylinder, be not suitable for the evaporative crystallization of organic solution.
Utility model content
The utility model provides a kind of crystallizing evaporator without transmission device being applicable to organic solution, and can solve when crystal grain extracts and wash away problem to feed tube, crystal grain extracts thoroughly simultaneously, makes simple and easy.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is:
A kind of crystallizing evaporator without transmission device for organic solution, comprise the conically shaped, cooling cylinder, lower shell and the upper shell that connect successively from down to up, lower shell is arranged in the inner chamber of cooling cylinder, in the middle part of the inner chamber of lower shell, guide shell is set, the sidewall of conically shaped is provided with circulation fluid bend pipe, and the plane that the port of export of circulation fluid bend pipe is formed is parallel with the lower surface of guide shell.
The further improvement of technical solutions of the utility model is: circulation fluid bend pipe promotes medium by axial-flow pump and flows into.
The further improvement of technical solutions of the utility model is: the end face center of the port of export of circulation fluid bend pipe and the end face of guide shell are centrally located at same straight line, below the lower ending opening that the port of export of circulation fluid bend pipe is arranged on guide shell in 100mm or in the 200mm of top.
The further improvement of technical solutions of the utility model is: the bottom section shape of conically shaped is arc.
The further improvement of technical solutions of the utility model is: the bottom of conically shaped arranges mother liquor pipe.
The further improvement of technical solutions of the utility model is: the sidewall of conically shaped arranges discharge nozzle.
The further improvement of technical solutions of the utility model is: cooling cylinder is connected by the coniform attaching parts be arranged on outside upper shell with cylindrical shell, and the sidewall of cooling cylinder is provided with clear liquid pipe.
Owing to have employed technique scheme, the technological progress that the utility model obtains is: the utility model provides a kind of crystallizing evaporator without transmission device being applicable to organic solution, circulation fluid bend pipe is arranged on the sidewall of cone tank, when avoiding from discharge nozzle extraction material, crystal grain washing away feed tube, extends the service life of feed tube; Circulation fluid bend pipe promotes medium by axial-flow pump and flows into, and axial-flow pump flow is large, and lift is low, and appearance and size is little, is easy to install, easy to use; Below the lower ending opening that the port of export of circulation fluid bend pipe is arranged on guide shell in 100mm or in the 200mm of top, be convenient to the control of flow velocity; The end face center of the port of export of circulation fluid bend pipe and the end face of guide shell are centrally located at same straight line, guarantee not bias current, are convenient to the control of flow.
Be arc by the bottom section profile design of conically shaped, structure is simple, is convenient to manufacture; Because organic matter is generally with toughness, be easily attached to the bottom of conically shaped, therefore mother liquor pipe be set bottom conically shaped and pass into mother liquor, can promote that crystallization is bred, more can play agitaion to the crystal grain of conically shaped bottom deposit, the deposition of crystal grain not easily occurs, more be conducive to the discharging of discharge nozzle.
Circulation fluid utilizes the density contrast principle of axial-flow pump overbottom pressure head and storeroom to make material at the equipment internal circulation flow without stirring, axial-flow pump has the advantages that flow is large, lift is low, its structure is simple, shape is tubulose, and floor space is little, reliable, fault is few, in crystal incubation, crystalline solid system is in state comparatively stably, and fluid dynamic effect is good, solution degree of supersaturation maintains reduced levels, decreases secondary nucleus.
Without transmission device, decrease transmission parts and the elongated elutriation legs such as motor, reductor, machine envelope, axle, both saved electric energy, again save the cost of a series of parts of transmission device, not easily leak simultaneously, avoid hidden danger, advocate energy-saving and emission-reduction, save electric energy and machine oil.
Without transmission device, reduce the destructive power of agitator to megacryst, prevent the crystal damage that mechanical oscillation and fluid flowing etc. cause, magma degree of supersaturation is even, and size distribution is good, and crystallization effect is good, stable operation, efficiency is high, can grow the crystal of larger particles.Also a saving space simultaneously, improve space availability ratio, applied widely, wide model is applied to the industries such as chemical industry, light industry, medicine.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1;
Wherein, 1, conically shaped, 2, cooling cylinder, 3, connect cone, 4, upper shell, 5, lower shell, 6, guide shell, 7, circulation fluid bend pipe, 8, mother liquor pipe, 9, discharge nozzle, 10, clear liquid pipe, 14, steam port, 15, pressure gauge connection, 16, drain;
111, manhole I, 112, manhole II;
121, spare interface I, 122, spare interface II, 123, spare interface III;
131, window I, 132, window II, 133, window III, 134, window IV.
Detailed description of the invention
Below in conjunction with embodiment, the utility model is described in further details:
Embodiment 1
As shown in Figure 1, a kind of crystallizing evaporator without transmission device for organic solution, comprise the conically shaped 1 connected successively from down to up, cooling cylinder 2, lower shell 5 and upper shell 4, lower shell 5 is arranged in the inner chamber of cooling cylinder 2, guide shell 6 is set in the middle part of the inner chamber of lower shell 5, the bottom section shape of conically shaped 1 is arc, the mother liquor pipe 8 promoting medium inflow by axial-flow pump is communicated with in the curved bottom of conically shaped 1, the sidewall of conically shaped 1 is communicated with respectively one promotes medium inflow circulation fluid bend pipe 7 and a discharge nozzle 9 flowed out by centrifugal pump band moving medium by axial-flow pump.
The arrival end of circulation fluid bend pipe 7 is perpendicular to the sidewall of conically shaped, 60mm below the lower ending opening that the port of export of circulation fluid bend pipe 7 is positioned at guide shell 6, the plane that the port of export of circulation fluid bend pipe 7 is formed is parallel with the lower surface of guide shell 6, the end face center of the port of export of circulation fluid bend pipe 7 and the end face of guide shell 6 are centrally located at same straight line, the lower ending opening of guide shell 6 can be made just to the outlet of circulation fluid bend pipe 7, ensure that flowing is more stable, guarantee not bias current.The flow velocity of such circulation fluid is slow, is applicable to the organic matter feed liquid of not easily Cheng Jing.
The top of cooling cylinder 2 is connected with upper shell 4 by the coniform attaching parts 3 be welded on upper shell 4, and the sidewall of cooling cylinder 2 is provided with clear liquid pipe 10.
The utility model is specially adapted to the evaporative crystallization being rich in organic solution, and if adjacent nitro is to chlorobenzene ammonium liquid, this organic solution has certain viscosity.Check during use whether steam port 14, pressure gauge connection 15 and drain 16 adjusts to the right place, whether manhole I 111 and manhole II 112 configure and put in place, window I 131, window II 132, whether window III 133 and window IV 134 normally use, and then utilize flash process to carry out evaporative crystallization.
The saturated circulation fluid of heat entered from circulation fluid bend pipe 7 and pass in conically shaped 1 from the mother liquor that mother liquor pipe 8 enters, under the impetus of axial-flow pump overbottom pressure head, liquid-covered is risen in guide shell 6, then below is turned to, finally flow at the bottom of crystallizer, be inhaled into again the lower end of guide shell 6, so circulation endlessly, forms the condition close to good mixing.Solution carries out evaporative cooling in crystallizer, crystallize out, under gravity, drop to the bottom of conically shaped 1.The clear liquid of separating out crystal grain, between guide shell 6 and cooling cylinder 2, along with the saturated circulation fluid of the heat constantly entered and mother liquor, constantly rises to clear liquid mouth and discharges.
Spare interface I 121, spare interface II 122 or spare interface III 123 is utilized to pass into other related liquid in operating process.
The feed liquid of this equipment internal circulation flow divides two parts: a part is the circulation fluid pushing crystallizing evaporator from circulation fluid bend pipe 7 through axial-flow pump, circulation fluid is the feed liquid mainly participating in circulation crystallization in equipment, another part promotes through axial-flow pump the mother liquor that medium enters crystallizing evaporator from mother liquor pipe 8, and mother liquor is the strength of fluid of control appliance Inner eycle and the feed liquid providing nucleus.From circulation fluid bend pipe 7 circulation fluid out from just entering the center of guide shell 6, ensure that flowing is more stable, can not bias current.Mixed liquid utilizes the equipment internal circulation flow without transmission device of the overbottom pressure head of axial-flow pump and the density contrast principle of storeroom.Feed velocity is slow, adds and educates the brilliant time, and this, for the organic matter feed liquid of not easily Cheng Jing, is that highly beneficial thin nucleus is formed, grows up lower shell 5 in, while be also beneficial to crystal sedimentation.
Crystal after growth enters the bottom in conically shaped 1 in Action of Gravity Field sedimentation, no longer circulates with feed liquid.The non-small grains do not grown up to circulates in equipment, until grow up into crystalline substance, the crystal of growing up utilizes centrifugal pump to extract processing of purifying further out from discharge nozzle 9, what avoid in extraction process that crystal grain produces circulation fluid bend pipe 7 washes away, due to the viscosity of organic solution, the crystal grain of mother liquor pipe 8 pairs of bottom deposit plays stirring, is beneficial to discharging operation further, and discharging is thorough, efficiency is high.
The fine crystals of sedimentation then cannot again enter circulation fluid bend pipe 7 by clear liquid pipe 10 along with clear liquid, ensure that equipment well runs all the time under clear liquid environment.Decrease transmission parts and the elongated elutriation legs such as motor, reductor, machine envelope, axle, both the cost of electric energy, installing space and transmission parts had been saved, decrease leakage point, avoid hidden danger, also advocated energy-saving and emission-reduction, save electric energy and machine oil.Reduce the destructive power of agitator to megacryst without transmission device, improve crystallization effect, the bulky grain crystal that crystal purity is higher can be grown.
Embodiment 2
Being distinguished as of the present embodiment and embodiment 1: 100mm above the lower ending opening that the port of export of circulation fluid bend pipe 7 is arranged on guide shell 6, circulation fluid can be made directly to pass into guide shell 6, and comparatively embodiment 1 is fast for the flow velocity of circulation fluid, is applicable to the organic matter feed liquid compared with Yi Chengjing.
Claims (7)
1. the crystallizing evaporator without transmission device for organic solution, comprise the conically shaped (1), cooling cylinder (2), lower shell (5) and the upper shell (4) that connect successively from down to up, lower shell (5) is arranged in the inner chamber of cooling cylinder (2), guide shell (6) is set in the middle part of the inner chamber of lower shell (5), it is characterized in that: the sidewall of conically shaped (1) is provided with circulation fluid bend pipe (7), the plane that the port of export of circulation fluid bend pipe (7) is formed is parallel with the lower surface of guide shell (6).
2. the crystallizing evaporator without transmission device for organic solution according to claim 1, is characterized in that: circulation fluid bend pipe (7) promotes medium by axial-flow pump and flows into.
3. the crystallizing evaporator without transmission device for organic solution according to any one of claim 1 or 2, it is characterized in that: the end face center of the port of export of circulation fluid bend pipe (7) and the end face of guide shell (6) are centrally located at same straight line, below the lower ending opening that the port of export of circulation fluid bend pipe (7) is arranged on guide shell (6) in 100mm or in the 200mm of top.
4. the crystallizing evaporator without transmission device for organic solution according to claim 1, is characterized in that: the bottom section shape of conically shaped (1) is arc.
5. the crystallizing evaporator without transmission device for organic solution according to claim 4, is characterized in that: the bottom of conically shaped (1) arranges mother liquor pipe (8).
6. the crystallizing evaporator without transmission device for organic solution according to claim 5, is characterized in that: the sidewall of conically shaped (1) is arranged discharge nozzle (9).
7. the crystallizing evaporator without transmission device for organic solution according to claim 1, it is characterized in that: cooling cylinder (2) is connected by the coniform attaching parts (3) be arranged on upper shell (4) outside with cylindrical shell, and the sidewall of cooling cylinder (2) is provided with clear liquid pipe (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670873.3U CN204996160U (en) | 2015-09-01 | 2015-09-01 | A evaporated crystallizer that is used for no transmission of organic matter solution |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520670873.3U CN204996160U (en) | 2015-09-01 | 2015-09-01 | A evaporated crystallizer that is used for no transmission of organic matter solution |
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| CN204996160U true CN204996160U (en) | 2016-01-27 |
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| CN201520670873.3U Active CN204996160U (en) | 2015-09-01 | 2015-09-01 | A evaporated crystallizer that is used for no transmission of organic matter solution |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583303A (en) * | 2017-10-31 | 2018-01-16 | 自贡市轻工业设计研究院有限责任公司 | Crystallizing evaporator and salt making equipment |
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- 2015-09-01 CN CN201520670873.3U patent/CN204996160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107583303A (en) * | 2017-10-31 | 2018-01-16 | 自贡市轻工业设计研究院有限责任公司 | Crystallizing evaporator and salt making equipment |
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