CN107648874B - Volatile solvent condensation recovery device - Google Patents
Volatile solvent condensation recovery device Download PDFInfo
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- CN107648874B CN107648874B CN201711034460.6A CN201711034460A CN107648874B CN 107648874 B CN107648874 B CN 107648874B CN 201711034460 A CN201711034460 A CN 201711034460A CN 107648874 B CN107648874 B CN 107648874B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/0011—Heating features
- B01D1/0041—Use of fluids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/30—Accessories for evaporators ; Constructional details thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
- B01D5/0012—Vertical tubes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/006—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with evaporation or distillation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0057—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes
- B01D5/0075—Condensation of vapours; Recovering volatile solvents by condensation in combination with other processes with heat exchanging
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- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention discloses a volatile solvent condensation recovery device, which comprises an evaporator, a pipeline, an induced draft fan and a condensing box, wherein a cavity for placing a solvent is arranged in the evaporator, a plurality of obliquely arranged partition plates are arranged in the condensing box, the lower ends of the partition plates are fixed with the side wall of one end of the condensing box, communicated cavities are arranged at the high ends of the partition plates and the side wall of the other end of the condensing box, and the partition plates are arranged on two opposite side walls in the condensing box at intervals; the condenser box is divided into a plurality of cavities by the partition plate, the cavities are communicated through the communicating cavity, and a collecting pipe communicated with the cavities is arranged outside the condenser box and corresponds to the lower end of the partition plate; be equipped with a plurality of condenser pipes that the interval is even in the cavity, from last condenser pipe quantity in extremely down the cavity increases progressively, the bottom of condensing box is equipped with the blast pipe, is equipped with the adsorption and filtration layer in the blast pipe. Compared with the prior art, the device greatly improves the efficiency of volatile solvent recovery treatment, reduces environmental pollution in the process and ensures that each separated component has higher purity.
Description
Technical Field
The invention belongs to the technical field of solvent recovery, and particularly discloses a volatile solvent condensation recovery device.
Background
In the process of surface hydrophobic modification of water-absorbing materials, equipment is generally used to graft or coat one or more layers of hydrophobic groups or organic substances on the inner and outer surfaces of the matrix material through chemical reaction, and these hydrophobic groups or organic substances need to be added with one or more volatile solvents for the purpose of dissolution and dilution before reacting on the surface of the matrix material, so as to improve the reaction efficiency and quality. In the process, the volatile solvent is only a consumable material in the reaction process, and the volatile solvent needs to be recycled after the reaction is finished. Otherwise, the volatilized solvent can cause serious environmental pollution and potential safety hazard, and simultaneously cause a great deal of waste.
When the volatile solvent is recovered, the volatile solvent is heated and volatilized by utilizing the volatility of the solvent, then the solvent volatilized into a gaseous state is condensed, and the condensed solution is purified or separated to separate components, so that the volatile solvent is convenient to reuse. At present, the condensation treatment is mainly carried out by using a condenser, the temperature in the condenser is low, and most of gaseous solvents can be condensed into solution. Due to the volatile property of the solution, if most components of the solution are condensed and then separated or purified, part of the components contained in the solution will be continuously volatilized in the process, and the pollution to the working environment is caused. Meanwhile, the processes of condensation, separation and the like are separately processed, the process is complex, and the efficiency is low, so that the recovery processing efficiency of the solvent is low.
Disclosure of Invention
The invention aims to provide a volatile solvent condensation and recovery device to solve the problem of low volatile solvent recovery and treatment efficiency.
In order to achieve the purpose, the basic scheme of the invention is as follows: a volatile solvent condensation recovery device comprises an evaporator, a pipeline, an induced draft fan and a condensing box, wherein a cavity for placing a solvent is formed in the evaporator, a pipe inlet is formed in the evaporator, a hot water cavity is formed in the bottom of the evaporator, the upper end of the evaporator is communicated with the upper end of the condensing box through the pipeline, and the induced draft fan is arranged at the joint of the pipeline and the condensing box; a plurality of obliquely arranged partition plates are arranged in the condenser box, the inclination directions of adjacent partition plates are opposite, the lower ends of the partition plates are fixed with the side wall of one end of the condenser box, the high ends of the partition plates and the side wall of the other end of the condenser box are provided with communicating cavities, and the partition plates are arranged on two opposite side walls in the condenser box at intervals; the condenser box is divided into a plurality of cavities by the partition plate, the cavities are communicated through the communicating cavity, and a collecting pipe communicated with the cavities is arranged outside the condenser box and at the position corresponding to the lower end of the partition plate; be equipped with a plurality of condenser pipes that the interval is even in the cavity, from last condenser pipe quantity in extremely down the cavity increases progressively, the bottom of condensing box is equipped with the blast pipe, be equipped with the adsorption and filtration layer in the blast pipe.
The working principle of the basic scheme is as follows: after the volatile solvent is used, the volatile solvent can be introduced into the cavity of the evaporator through the pipe inlet, at the moment, hot water is introduced into the heating cavity, the volatile solvent is heated through the hot water, and the volatile solvent is heated and volatilized; meanwhile, because the heating is carried out by using hot water, the moisture in the solvent is only slightly evaporated. The upper end of evaporimeter and the upper end of condensing box pass through the pipeline intercommunication, and volatile gaseous state solvent is in the pipe lets in the condensing box, still can start the draught fan and aspirate volatile gaseous state solvent, can accelerate the process of volatilizing of solvent.
The volatilized gaseous solvent is introduced into the condenser box from the upper end of the condenser box, as a plurality of obliquely arranged partition plates are arranged in the condenser box, the inclination directions of the adjacent partition plates are opposite, the lower ends of the partition plates are fixed with the side wall of one end of the condenser box, the high ends of the partition plates and the side wall of the other end of the condenser box are provided with communicating cavities, and the partition plates are arranged on two opposite side walls in the condenser box at intervals; the condenser box is divided into a plurality of cavities by the partition plates, and the cavities are communicated through communicating cavities; under the action of the induced draft fan, the gaseous solvent sequentially passes through the cavities from top to bottom. Because be equipped with a plurality of condenser pipes that the interval is even in the cavity, from last condenser pipe quantity in the cavity to increase gradually to make from last cavity temperature to lower reduce in proper order, gaseous state solvent loops through from last cavity to lower, and the temperature that receives is more and more low, thereby makes the boiling point from high to low component condensation in proper order, realizes the separation to each component. Because the lower end of the partition plate is fixed with the side wall of one end of the condensing box, the high end of the partition plate and the side wall of the other end of the condensing box are provided with communicating cavities, and a collecting pipe communicated with the cavity is arranged outside the condensing box and at the position corresponding to the lower end of the partition plate; the condensed components will flow down the partition plate and can be collected through the collecting pipe.
The higher component of boiling point to and the gas that contains in some air will not be by the condensation, and after passing through in the cavity from last to down, this part gaseous state solvent will be in the inside of condensing box, and discharge through the blast pipe, and the adsorption and filtration layer will adsorb filtration treatment to it before discharging, thereby avoids causing harmful substance to discharge, causes environmental pollution.
The beneficial effect of this basic scheme lies in: when the device is used for treating the volatile solvent, condensation and separation can be carried out simultaneously, and the volatile solvent sequentially passes through the cavities which are gradually reduced according to different boiling points of components in the solvent, so that the components with different boiling points are condensed and collected, and the treatment of separating the components in the solvent is finished; the process reduces the separation process, thereby improving the efficiency of the solvent recovery process. The in-process that this device was handled volatile solvent, the seamless butt joint of process of solvent volatilizing, condensation, separation avoids the solvent to volatilize to the air in this in-process, causes operational environment's pollution. The device separates each component contained in the volatile solvent through the boiling point, so that the purity of the separated component is high, part of the components can be directly put into use, secondary processing is not needed, and the processing procedure of the solvent is greatly saved. Compared with the prior art, the device greatly improves the efficiency of volatile solvent recovery treatment, reduces environmental pollution in the process and ensures that each separated component has higher purity.
The first preferred scheme is as follows: the preferred as basic scheme still includes a plurality of temperature control unit, and the temperature control unit corresponds with the quantity of cavity, the temperature control unit is including being located the temperature-sensing ware in the cavity and fixing the outside temperature display of condensing box, temperature display links with the temperature-sensing ware electricity. Because this device mainly uses the temperature difference of each cavity to realize separating each component of the boiling point difference, the temperature control unit can in time monitor the temperature in each cavity to be convenient for adjust the temperature of each cavity, realize better condensation to each component in the volatile solvent.
The preferred scheme II is as follows: preferably, a one-way valve is arranged in the communication cavity, and a blocking cover is arranged at the end part of the collecting pipe. The check valve can guarantee that in each cavity, the flowing gaseous solvent can not flow back, and the backflow is avoided to cause the influence to the use of the device. When the condensed components in one cavity are less, the collecting pipe can be blocked by using the blocking cover, and the components to be condensed are collected together when more components are to be condensed.
The preferable scheme is three: preferably, the condenser pipes are vertically arranged, and porous materials are sleeved outside the condenser pipes. The porous material prevents the gaseous solvent introduced into the cavity from directly contacting the surface of the condenser pipe, thereby avoiding the condensation of the component with lower boiling point caused by the lower surface of the condenser pipe.
The preferable scheme is four: preferably, the adsorption filtration layer comprises an activated carbon layer and a sponge layer. The gas can be better adsorbed and filtered, so that the pollution of the gas discharged into the environment to the environment is further reduced.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a volatile solvent condensation and recovery apparatus according to the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises an evaporator 10, a cavity 11, a pipe inlet 12, a hot water cavity 13, a pipeline 20, an induced draft fan 30, a condenser box 40, a partition plate 41, a cavity 42, a communication cavity 43, a one-way valve 44, a condenser pipe 50, a porous material 51, a collecting pipe 60, a baffle cover 61, an exhaust pipe 70, an activated carbon layer 71, a sponge layer 72, a temperature display 80 and a temperature sensor 81.
As shown in figure 1, a volatile solvent condensation recovery device, including evaporimeter 10, pipeline 20, draught fan 30, condensing box 40 and temperature control unit, evaporimeter 10 is inside to be set up the cavity 11 that is used for putting into the solvent, has set up into mouth of pipe 12 on the evaporimeter 10, and evaporimeter 10 bottom has set up hot water cavity 13, and pipeline 20 intercommunication is passed through to the upper end of evaporimeter 10 and the upper end of condensing box 40, and draught fan 30 sets up in pipeline 20 and condensing box 40 junction. A plurality of obliquely arranged partition plates 41 are arranged in the condensation box 40, preferably five partition plates 41 are arranged in the embodiment, and the inclination directions of the adjacent partition plates 41 are opposite; the lower end of the partition plate 41 is fixed to the side wall of one end of the condensation tank 40, the upper end of the partition plate 41 and the side wall of the other end of the condensation tank 40 are provided with a communication cavity 43, and five partition plates 41 are arranged on two opposite side walls in the condensation tank 40 at intervals. The condenser box 40 is divided into five cavities 42 by the partition plate 41, the five cavities 42 are communicated through a communication cavity 43, and a one-way valve 44 is arranged in the communication cavity 43; the check valve 44 can ensure that gaseous solvent flows in each cavity 42, so that backflow is avoided, and the use of the device is prevented from being influenced by the backflow. A collecting pipe 60 communicated with the cavity 42 is arranged outside the condensing tank 40 and at the position corresponding to the lower end of the partition plate 41, and a baffle cover 61 is arranged at the end part of the collecting pipe 60; when less condensed components are present in one of the chambers 42, the collecting tube 60 may be blocked by the blocking cover 61, and more condensed components may be collected together. A plurality of uniformly spaced condensation pipes 50 are arranged in each cavity 42, the number of the condensation pipes 50 in the cavity 42 is increased from top to bottom, an exhaust pipe 70 is arranged at the bottom of the condensation box 40, and an adsorption filter layer is arranged in the exhaust pipe 70; the condenser pipes 50 are vertically arranged, and porous materials 51 are sleeved outside the condenser pipes 50; the porous material 51 prevents the gaseous solvent introduced into the chamber 42 from directly contacting the surface of the condensation duct 50, thereby preventing the condensation of the lower boiling point component at the surface of the condensation duct 50 due to the lower surface. The adsorption and filtration layer comprises an activated carbon layer 71 and a sponge layer 72, so that gas can be better adsorbed and filtered, and the pollution of the gas discharged into the environment to the environment is further reduced. The temperature control unit corresponds to the number of the cavities 42, the temperature control unit comprises a temperature sensor 81 positioned in the cavity 42 and a temperature display 80 fixed outside the condensation box 40, and the temperature display 80 is electrically connected with the temperature sensor 81.
After the volatile solvent is used, the volatile solvent can be introduced into the cavity 11 of the evaporator 10 through the inlet pipe orifice 12, at the moment, hot water is introduced into the heating cavity, the volatile solvent is heated through the hot water, and the volatile solvent is heated and volatilized; meanwhile, because the heating is carried out by using hot water, the moisture in the solvent is only slightly evaporated. The upper end of evaporimeter 10 and the upper end of condensing box 40 are passed through pipeline 20 and are linked together, and volatile gaseous state solvent still can start draught fan 30 and aspirate volatile gaseous state solvent in 20 letting in condensing box 40 of pipeline, can accelerate the volatilization process of solvent.
The volatilized gaseous solvent is introduced into the condensation box 40 from the upper end of the condensation box 40, as five obliquely arranged partition plates 41 are arranged in the condensation box 40, the lower ends of the partition plates 41 are fixed with the side wall of one end of the condensation box 40, the high ends of the partition plates 41 and the side wall of the other end of the condensation box 40 are provided with communicating cavities 43, and the five partition plates 41 are arranged on two opposite side walls in the condensation box 40 at intervals; the condenser box 40 is divided into five cavities 42 by the partition plate 41, and the five cavities 42 are communicated through a communication cavity 43; under the action of the induced draft fan 30, the gaseous solvent will pass through the cavity 42 from top to bottom in sequence. Because set up a plurality of condenser pipes 50 that the interval is even in the cavity 42, from last condenser pipe 50 quantity in the cavity 42 to progressively increase to make from last cavity 42 temperature to down reduce in proper order, gaseous state solvent loops through from last cavity 42 to down, and the temperature that receives is progressively lower, thereby makes the boiling point condense in proper order from high to low component, realizes the separation to each component. Because the lower end of the partition plate 41 is fixed with the side wall of one end of the condensation box 40, the communication cavity 43 is arranged between the upper end of the partition plate 41 and the side wall of the other end of the condensation box 40, and the collecting pipe 60 communicated with the cavity 42 is arranged outside the condensation box 40 and at the position corresponding to the lower end of the partition plate 41; the condensed components will flow down the partition 41 and may be collected through the collection pipe 60.
The higher component of boiling point to and the gas that contains in some air, will not be condensed, after passing through in the cavity 42 from last to down, this part gaseous state solvent will be in the inside of condensing box 40 to discharge through blast pipe 70, the adsorption and filtration layer will adsorb filtering treatment to it before discharging, thereby avoid causing harmful substance to discharge, cause environmental pollution. Because this device mainly uses the temperature difference of each cavity 42 to realize separating each component of the boiling point difference, the temperature control unit can in time monitor the temperature in each cavity 42 to be convenient for adjust the temperature of each cavity 42, realize better condensation to each component in the volatile solvent.
The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.
Claims (3)
1. A volatile solvent condensation recovery device is characterized by comprising an evaporator, a pipeline, an induced draft fan and a condensing box, wherein a cavity for placing a solvent is formed in the evaporator, a pipe inlet is formed in the evaporator, a hot water cavity is formed in the bottom of the evaporator, the upper end of the evaporator is communicated with the upper end of the condensing box through the pipeline, and the induced draft fan is arranged at the joint of the pipeline and the condensing box; a plurality of obliquely arranged partition plates are arranged in the condenser box, the inclination directions of adjacent partition plates are opposite, the lower ends of the partition plates are fixed with the side wall of one end of the condenser box, the high ends of the partition plates and the side wall of the other end of the condenser box are provided with communicating cavities, and the partition plates are arranged on two opposite side walls in the condenser box at intervals; the condenser box is divided into a plurality of cavities by the partition plate, the cavities are communicated through the communicating cavity, and a collecting pipe communicated with the cavities is arranged outside the condenser box and at the position corresponding to the lower end of the partition plate; a plurality of condenser pipes are uniformly arranged in the cavity, the number of the condenser pipes in the cavity is increased from top to bottom, an exhaust pipe is arranged at the bottom of the condenser box, and an adsorption filter layer is arranged in the exhaust pipe; a one-way valve is arranged in the communicating cavity, and a blocking cover is arranged at the end part of the collecting pipe; the condenser pipe is vertically arranged, and porous materials are sleeved outside the condenser pipe.
2. The recycling apparatus for volatile solvent condensation as claimed in claim 1, further comprising a plurality of temperature control units corresponding to the number of the cavities, wherein the temperature control units comprise temperature sensors located in the cavities and temperature indicators fixed outside the condensation box, and the temperature indicators are electrically connected to the temperature sensors.
3. The apparatus for condensing and recovering a volatile solvent according to claim 1, wherein the adsorption filtration layer comprises an activated carbon layer and a sponge layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711034460.6A CN107648874B (en) | 2017-10-30 | 2017-10-30 | Volatile solvent condensation recovery device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711034460.6A CN107648874B (en) | 2017-10-30 | 2017-10-30 | Volatile solvent condensation recovery device |
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| CN107648874A CN107648874A (en) | 2018-02-02 |
| CN107648874B true CN107648874B (en) | 2020-10-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108380138A (en) * | 2018-04-13 | 2018-08-10 | 浙江国森精细化工科技有限公司 | A kind of retracting device of the reaction kettle of environment-friendlyacrylic acrylic acid esters adhesive production |
| CN111170387B (en) * | 2018-11-13 | 2021-12-17 | 上海景峰制药有限公司 | Drawer type split water organic solvent evaporation device |
| CN109612292A (en) * | 2019-01-15 | 2019-04-12 | 海安艾拉新材料有限公司 | Condensing plant is used in a kind of processing of new material |
| CN111318047B (en) * | 2020-04-24 | 2024-05-28 | 东营银桥化工有限责任公司 | Device and method for cooling and purifying dichloroacetyl chloride |
| CN113413629B (en) * | 2021-07-01 | 2022-04-19 | 合肥工业大学 | Organic solvent separation device and system method for flat panel display based on condensation method |
| CN115282619A (en) * | 2022-05-24 | 2022-11-04 | 温州市康泰生物科技有限公司 | System for rapidly removing volatile solvent |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH09262403A (en) * | 1996-03-27 | 1997-10-07 | Hayashi Denko Kk | Washing solvent recovering device |
| CN106643238B (en) * | 2016-11-17 | 2023-05-16 | 广东工业大学 | Multistage liquid-separating plate type condenser |
| CN206463527U (en) * | 2017-02-05 | 2017-09-05 | 江西仙康药业有限公司 | A kind of Chemical Manufacture integrated distillation kettle |
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