CN103920304A - Device for improving safety of leaching workshop and reducing solvent loss - Google Patents
Device for improving safety of leaching workshop and reducing solvent loss Download PDFInfo
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- CN103920304A CN103920304A CN201410156554.0A CN201410156554A CN103920304A CN 103920304 A CN103920304 A CN 103920304A CN 201410156554 A CN201410156554 A CN 201410156554A CN 103920304 A CN103920304 A CN 103920304A
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- separating box
- heat exchanger
- water
- water tank
- solvent loss
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Abstract
The invention discloses a device for improving the safety of a leaching workshop and reducing solvent loss. A filler layer is arranged in a spray tower, a water distribution pipe and a rotary drum are arranged above the filler layer, and eyeholes are formed in the water distribution pipe; the upper tube side of a shell-and-tube heat exchanger is connected with an inlet in the bottom of the spray tower, an outlet in the top of the spray tower is connected with an exhaust fan, and an outlet of the exhaust fan is connected with an air outlet; one end of a main liquid distribution box is connected with a balancing tank tube, the other end of the main liquid distribution box is connected with the lower tube side of the shell-and-tube heat exchanger, the main liquid distribution box is connected with an auxiliary liquid distribution box by a connecting vessel, the auxiliary liquid distribution box is also connected with a refrigerating water box through the connecting vessel, the refrigerating water box is connected with the lower tube side of the shell-and-tube heat exchanger by a circulating water pump, and the upper tube side of the shell-and-tube heat exchanger is connected with a water distribution pipe; a refrigerating plant is arranged in the refrigerating water box. According to the device, a leaching system generates micro negative pressure, and reduces and completely eradicates the leakage amount of solvents in the leaching system, the solvent loss is reduced to the maximum degree, the potential safety hazard is eliminated, the structure is simple and reliable, and the practicability is strong.
Description
Technical field
The present invention relates to a kind ofly prevent from leaching workshop solvent and leak, and improve security and reduce the device of solvent loss.
Background technology
Leaching be use solvent particularly organic solvent the target component in material is dissolved, and then carry out separated operation, be that conventional technological means is produced in batch production, in food, biology, chemical industry and medicine and other fields, be all widely used.
Because the overwhelming majority leaches the solvent using in workshop, it is all organic solvent, and high volatility, inflammable, explosive, thereby, one of key points for operation that leach workshop are exactly to avoid leaching system to produce malleation, even very little malleation also may cause solvent to volatilize from system and loss out, produce the loss of solvent, from leaching system volatilization and loss solvent vapo(u)r out, easily in leaching workshop, fill the air and enrichment, due to most of organic solvents, all inflammable and explosive also possibility is poisonous, thereby has formed serious threat.
In order to reduce the leakage of solvent in leaching system, general leaching system is all provided with compensator, compensator be exactly by leaching equipment with more greatly, longer pipeline UNICOM makes pressure balanced equipment, but security incident is stopped in the application of compensator fail fundamentally to prevent the leakage of solvent.If design a kind of device, compensator to leaching system is bled, and forms the micro-negative pressure of leaching system, and the solvent vapo(u)r in bleeding is thoroughly reclaimed, not only solvent loss can be reduced, the leakage causing due to system malleation and the security incident causing thus can also be effectively stopped.
Summary of the invention
The technical problem to be solved in the present invention overcomes the deficiencies in the prior art exactly, a kind of device is provided, this apparatus structure is simple, practical, can bleed to the compensator of leaching system, form the micro-negative pressure of leaching system, and the solvent vapo(u)r in bleeding is thoroughly reclaimed, effectively stop the leakage causing due to system malleation and the security incident causing thus.
For overcoming the deficiencies in the prior art, the present invention takes following technical scheme:
A kind of device that leaches shop safety and reduce solvent loss that improves, comprise air exhauster, spray column, tubular heat exchanger, main separating box, inferior separating box, freezing water tank and water circulating pump, it is characterized in that: the enclosed construction of spray column for exporting up and down, inside there is packing layer, packing layer top is provided with water distributor and rotary drum, water distributor is provided with eyelet, and water distributor is sprayed water and driven rotary drum and water distributor to spin by eyelet; On tubular heat exchanger, tube side connects spray column bottom inlet, and spray column top exit connects air exhauster, and air exhauster outlet connects exhaust outlet; Main separating box one termination compensator pipe, the other end connects the lower tube side of tubular heat exchanger, main separating box is connected with time separating box through linker, inferior separating box is connected with freezing water tank through another linker, freezing water tank is connected with the lower shell side of tubular heat exchanger through water circulating pump, and the upper shell side of tubular heat exchanger is connected with water distributor; In freezing water tank, be provided with heat exchange coil, heat exchange coil connects handpiece Water Chilling Units.
Described spray column is provided with manhole and peephole, and manhole and peephole seal usually, while needing, can open.
Packing layer in described spray column is that surface area is large, the object of small volume, and the object of the increase surface area that namely field of engineering technology is often said, as Raschig ring, Boolean ring and saddle ring etc.
Described main separating box top is provided with solvent refluxing pipe, the solvent reclaiming and carry out separatory processing can be flowed back to storage tank.
Described main separating box and time separating box are provided with liquid level gauge, are convenient to observe liquid level.
Described main separating box, inferior separating box and freezing water tank bottom are inverted cone-shaped structure, and the cone end is connected with blowoff valve.
Described freezing water tank is provided with ball-cock assembly and ball-cock assembly ball float, is convenient to observe and control the water level of freezing water tank.
Between described water circulating pump import and freezing water tank, between water circulating pump outlet and freezing water tank and be provided with valve between tubular heat exchanger shell side, be convenient to realize various functions operation.
Described spray column, tubular heat exchanger, main separating box, inferior separating box and freezing water tank are provided with heat-insulation layer.
Workflow of the present invention is as follows:
From the gas of compensator, from connecing compensator pipe, enter main separating box and pass through top, enter tubular heat exchanger tube side, be upward through heat exchanger tube, with shell side chilled water from bottom to top and flow heat exchange; Chilled water upwards arrives tubular heat exchanger shell side top, enters after water distributor from the eyelet ejection of water distributor, and water distributor is oppositely sprayed water and driven rotary drum and water distributor to spin by eyelet, make chilled water aqueous dispersion evenly, unrestrained, through packing layer.At packing layer, realize large-area dirty chilled water direct contact type large area heat exchange on ascending air and filler, make chilled water efficiently, the heat in gas thoroughly, make solvent vapo(u)r condensation wherein, the gas after precipitation is extracted out emptying by air exhauster.
The gas of compensator is from bottom to top through spray column, and the chilled water falling with spray carries out adverse current direct contact heat transfer, from the solvent solvent in compensator gas, is able to condensation.
The chilled water that has carried solvent refluxes by tubular heat exchanger, with the tail gas direct contact heat transfer again that rises in tube side, makes solvent vapo(u)r condensation.
Solvent after all chilled waters and condensation liquefaction is flowed to main separating box entirely, and solvent density is little of water layer top, by liquid level gauge, observes water and demixing of solvents situation, and the valve that solvent is many can open on solvent refluxing pipe is realized solvent refluxing.
When liquid level surpasses the position of linker balance pipe, under the effect of linker, the water of main separating box bottom can overflow to time separating box, finally overflows to freezing water tank, the solvent in two separating boxes can not overflowed to freezing water tank.
In freezing water tank, there is heat exchange coil, heat exchange coil connects handpiece Water Chilling Units, make the water for cooling in freezing water tank, chilled water is controlled and is entered water circulating pump by valve, output can divide two-way, and a road valve return is controlled and carried out the stirring of pump jet flow, strengthening frozen water tank inner coil pipe and water heat exchange, another route valve regulated heat exchange chilled water circular flow, ball-cock assembly automatic makeup is filled to applicable liquid level.
The design's core is exactly that the heat exchange of chilled water spray makes solvent condenses, and separated in conjunction with the solvent condenses of tubulation heat exchange, emptying gas is not substantially containing solvent.
The leakage that the air-extraction function of this device can make leaching system produce micro-negative pressure, reduce and stop solvent in leaching system, reduces to greatest extent solvent consumption and eliminates safe hidden trouble.
Compared with prior art, beneficial effect of the present invention is:
In tubulation, gas rising, chilled water falling liquid film, carry out steam heat-exchanging condensation seizure, manages outer cryogenic freezing water and guarantee that in pipe, steam-condensation is efficiently thorough, and the interior chilled water falling liquid film of pipe has effectively been avoided air film enrichment, hinders heat exchange condensation, has improved heat transfer coefficient; The gas that tube side rises is conducted heat by the efficient direct contact type cooling of packing layer large area again, makes further thoroughly condensation of solvent vapo(u)r, makes exhaust emissions reach minimum residual molten.
Two-stage series connection chilled water is cooling, condensed steam guarantees tail gas precipitation effect, refluxes and guarantee that recirculation water is not containing solvent in two-stage separatory and linker bottom; This device can not produce solvent yet and leak in the situation that separating box carries out blowdown and water circulating pump 29 generation leakage, stops to the full extent potential safety hazard.
The present invention is simple and reliable for structure, practical, and market prospects are wide.
Accompanying drawing explanation
Fig. 1 is planar structure schematic diagram of the present invention.
In figure, each label represents:
1, exhaust outlet; 2, air exhauster; 3, water distributor; 4, rotary drum; 5, manhole; 6, peephole; 7, spray column; 8, valve a; 9, packing layer; 10, tubular heat exchanger; 11, connect compensator pipe; 12, main separating box; 13, solvent refluxing pipe; 14, liquid level gauge a; 15, solvent and moisture boundary line; 16, linker a; 17, blowoff valve a; 18, inferior separating box; 19, linker b; 20, liquid level gauge b; 21, linker balance pipe; 22, handpiece Water Chilling Units; 23, heat exchange coil; 24, blowoff valve b; 25, ball-cock assembly ball float; 26, ball-cock assembly; 27, valve b; 28, freezing water tank; 29, water circulating pump; 30, valve c; 31, blowoff valve c.
The specific embodiment
Now by reference to the accompanying drawings, the present invention is further illustrated.
Improve as shown in Figure 1 the device that leaches shop safety and reduce solvent loss, comprise air exhauster 2, spray column 7, tubular heat exchanger 10, main separating box 12, inferior separating box 18, freezing water tank 28 and water circulating pump 29, spray column 7 is the enclosed construction exporting up and down, inside there is packing layer 9, packing layer 9 tops are provided with water distributor 3 and rotary drum 4, water distributor 3 is provided with eyelet, and water distributor 3 is sprayed water and driven rotary drum 4 and water distributor 3 spins by eyelet; On tubular heat exchanger 10, tube side connects spray column 7 bottom inlet, and spray column 7 top exits connect air exhauster 2, and air exhauster 2 outlets connect exhaust outlet 1; Main separating box 12 1 termination compensator pipes 11, the other end connects the lower tube side of tubular heat exchanger 10, main separating box 12 is connected with time separating box 18 through linker 16, inferior separating box 18 is connected with freezing water tank 28 through another linker 19, freezing water tank 28 is connected with the lower shell side of tubular heat exchanger 10 through water circulating pump 29, and the upper shell side of tubular heat exchanger 10 is connected with water distributor 3; In freezing water tank 28, be provided with heat exchange coil 23, heat exchange coil 23 connects handpiece Water Chilling Units 22.
Described spray column 7 is provided with manhole 5 and peephole 6, and manhole and peephole seal usually, while needing, can open.
Packing layer 9 in described spray column 7 is that surface area is large, the object of small volume, and the object of the increase surface area that namely field of engineering technology is often said, as Raschig ring, Boolean ring and saddle ring etc.
Described main separating box 12 tops are provided with solvent refluxing pipe 13, the solvent reclaiming and carry out separatory processing can be flowed back to storage tank.
Described main separating box 12 and time separating box 18 are provided with liquid level gauge 14,20, are convenient to observe liquid level.
Described main separating box 12, inferior separating box 18 and freezing water tank 28 bottoms are inverted cone-shaped structure, and the cone end is connected with blowoff valve 17,31 and 24.
Described freezing water tank 28 is provided with ball-cock assembly 26 and ball-cock assembly ball float 25, is convenient to observe and control the water level of freezing water tank.
Between described water circulating pump 28 imports and freezing water tank 28, arrange between valve 30, water circulating pump outlet and freezing water tank valve 27 be set,, valve 8 is set between tubular heat exchanger shell side, be convenient to realize various functions operation.
Described spray column 7, tubular heat exchanger 10, main separating box 12, inferior separating box 18 and freezing water tank 28 are provided with heat-insulation layer.
From the gas of compensator, from connecing compensator pipe 11, enter main separating box 12 and pass through top, enter tubular heat exchanger 10 tube sides, be upward through heat exchanger tube, with shell side chilled water from bottom to top and flow heat exchange; Chilled water upwards arrives tubular heat exchanger 10 shell side tops, enters after water distributor 3 from the eyelet ejection of water distributor 3, and water distributor 3 is oppositely sprayed water and driven rotary drum 4 and water distributor 3 spins by eyelet, make chilled water aqueous dispersion evenly, unrestrained, through packing layer 9.At packing layer 9, realize large-area dirty chilled water direct contact type large area heat exchange on ascending air and filler, make chilled water absorb efficiently, thoroughly the heat in gas, make solvent vapo(u)r condensation wherein, the gas after precipitation is extracted out emptying by air exhauster 2.
The gas of compensator is from bottom to top through spray column 7, and the chilled water falling with spray carries out adverse current direct contact heat transfer, from the solvent solvent in compensator gas, is able to condensation.
The chilled water that has carried solvent refluxes by tubular heat exchanger 10, with the tail gas direct contact heat transfer again that rises in tube side, makes solvent vapo(u)r condensation.
Solvent after all chilled waters and condensation liquefaction is flowed to main separating box 12 entirely, and solvent density is little of water layer top, by liquid level gauge 14, observes water and demixing of solvents situations, more than solvent the valve that can open on solvent refluxing pipe 13 realize solvent refluxing.
When liquid level surpasses the position of linker 16 balance pipes, under the effect of linker, the water of main separating box 12 bottoms can overflow to time separating box 18, finally overflows to freezing water tank 28, the solvent in two separating boxes can not overflowed to freezing water tank.
In freezing water tank 28, there is heat exchange coil 23, heat exchange coil connects handpiece Water Chilling Units, make the water for cooling in freezing water tank, chilled water is controlled and is entered water circulating pump 29 by valve 30, output can divide two-way, and a road valve 27 refluxes to control and carries out the stirring of pump jet flow, strengthening frozen water tank inner coil pipe and water heat exchange, another route valve 8 regulates heat exchange chilled water circular flow, and ball-cock assembly 26 automatic makeups are filled to applicable liquid level.
Above-mentioned is preferred embodiment of the present invention, not the present invention is done to any pro forma restriction.Any those of ordinary skill in the art, in the situation that not departing from technical solution of the present invention scope, can utilize the technology contents of above-mentioned announcement to make many possible changes and modification to technical solution of the present invention, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not depart from technical solution of the present invention,, all should drop in the scope of technical solution of the present invention protection any simple modification made for any of the above embodiments, equivalent variations and modification according to the technology of the present invention essence.
Claims (9)
1. one kind is improved the device that leaches shop safety and reduce solvent loss, comprise air exhauster, spray column, tubular heat exchanger, main separating box, inferior separating box, freezing water tank and water circulating pump, it is characterized in that: the enclosed construction of spray column for exporting up and down, inside there is packing layer, packing layer top is provided with water distributor and rotary drum, water distributor is provided with eyelet, and water distributor is sprayed water and driven rotary drum and water distributor to spin by eyelet; On tubular heat exchanger, tube side connects spray column bottom inlet, and spray column top exit connects air exhauster, and air exhauster outlet connects exhaust outlet; Main separating box one termination compensator pipe, the other end connects the lower tube side of tubular heat exchanger, main separating box is connected with time separating box through linker, inferior separating box is connected with freezing water tank through another linker, freezing water tank is connected with the lower shell side of tubular heat exchanger through water circulating pump, and the upper shell side of tubular heat exchanger is connected with water distributor; In freezing water tank, be provided with heat exchange coil, heat exchange coil connects handpiece Water Chilling Units.
2. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: described spray column is provided with manhole and peephole, and manhole and peephole seal usually, while needing, can open.
3. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: the packing layer in described spray column is that surface area is large, the object of small volume.
4. raising according to claim 1 is leached shop safety and is reduced the device of solvent loss, it is characterized in that: described main separating box top is provided with solvent refluxing pipe, the solvent reclaiming and carry out separatory processing can be flowed back to storage tank.
5. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: described main separating box and time separating box are provided with liquid level gauge, are convenient to observe liquid level.
6. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: described main separating box, inferior separating box and freezing water tank bottom are inverted cone-shaped structure, and the cone end is connected with blowoff valve.
7. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: described freezing water tank is provided with ball-cock assembly and ball-cock assembly ball float, is convenient to observe and control the water level of freezing water tank.
8. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: between described water circulating pump import and freezing water tank, between water circulating pump outlet and freezing water tank and be provided with valve between tubular heat exchanger shell side, be convenient to realize various functions operation.
9. the device of shop safety and reduction solvent loss is leached in raising according to claim 1, it is characterized in that: described spray column, tubular heat exchanger, main separating box, inferior separating box and freezing water tank are provided with heat-insulation layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156554.0A CN103920304B (en) | 2014-04-18 | 2014-04-18 | Device for improving safety of leaching workshop and reducing solvent loss |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410156554.0A CN103920304B (en) | 2014-04-18 | 2014-04-18 | Device for improving safety of leaching workshop and reducing solvent loss |
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| Publication Number | Publication Date |
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| CN103920304A true CN103920304A (en) | 2014-07-16 |
| CN103920304B CN103920304B (en) | 2015-07-22 |
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| CN201410156554.0A Expired - Fee Related CN103920304B (en) | 2014-04-18 | 2014-04-18 | Device for improving safety of leaching workshop and reducing solvent loss |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019006593A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市兆福源科技有限公司 | Method and device for preparing spray solution |
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| CN202322773U (en) * | 2011-10-27 | 2012-07-11 | 西安市坤伯工程技术开发有限责任公司 | Complete equipment for leaching grease |
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| CN202924986U (en) * | 2012-10-04 | 2013-05-08 | 刘芳 | Novel rice oil leaching complete equipment |
| CN203777698U (en) * | 2014-04-18 | 2014-08-20 | 吉首大学 | Device for improving security of leaching workshop and reducing consumption of solvent |
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2014
- 2014-04-18 CN CN201410156554.0A patent/CN103920304B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1991013177A1 (en) * | 1990-02-23 | 1991-09-05 | Cra Services Limited | Extraction and recovery of gold |
| CN201091185Y (en) * | 2007-10-22 | 2008-07-30 | 闫子鹏 | Rice bran swelling pre-treatment, leaching complete equipment |
| CN202322773U (en) * | 2011-10-27 | 2012-07-11 | 西安市坤伯工程技术开发有限责任公司 | Complete equipment for leaching grease |
| CN202605770U (en) * | 2012-06-08 | 2012-12-19 | 四川农业大学 | Novel water heating system for supercritical fluid extraction device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019006593A1 (en) * | 2017-07-03 | 2019-01-10 | 深圳市兆福源科技有限公司 | Method and device for preparing spray solution |
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| CN103920304B (en) | 2015-07-22 |
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Effective date of registration: 20170602 Address after: 221200, Jiangsu, Xuzhou province Suining County Industrial Park Guanyin Avenue, East Avenue North Patentee after: JIANGSU ZHONGCHENG COMPOSITE MATERIAL Co.,Ltd. Address before: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee before: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Effective date of registration: 20170602 Address after: 510000 unit 2414-2416, building, No. five, No. 371, Tianhe District, Guangdong, China Patentee after: GUANGDONG GAOHANG INTELLECTUAL PROPERTY OPERATION Co.,Ltd. Address before: 416000 Hunan, Xiangxi Tujia and Miao Autonomous Prefecture, Jishou City People's road, No. 120 Patentee before: Jishou University |
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