CN216934717U - Low-temperature stirring evaporation equipment - Google Patents

Low-temperature stirring evaporation equipment Download PDF

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Publication number
CN216934717U
CN216934717U CN202121394409.8U CN202121394409U CN216934717U CN 216934717 U CN216934717 U CN 216934717U CN 202121394409 U CN202121394409 U CN 202121394409U CN 216934717 U CN216934717 U CN 216934717U
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CN
China
Prior art keywords
steam
stirring
shell
waste liquid
evaporator
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Active
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CN202121394409.8U
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Chinese (zh)
Inventor
路建伟
刘威
王潘峰
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Kunshan Wsd Environmental Protection Equipment Co ltd
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Kunshan Wsd Environmental Protection Equipment Co ltd
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Priority to CN202121394409.8U priority Critical patent/CN216934717U/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/30Wastewater or sewage treatment systems using renewable energies
    • Y02W10/37Wastewater or sewage treatment systems using renewable energies using solar energy

Abstract

The utility model provides low-temperature stirring evaporation equipment which comprises an evaporator and a steam supply device, wherein the evaporator is used for evaporating waste liquid, the evaporator comprises a shell, a stirring device arranged in the shell and used for stirring the waste liquid, and a heat insulation layer at least partially covering the shell, and a steam gap for steam circulation is formed between the heat insulation layer and the shell; the steam supply device comprises a steam compressor, the steam compressor is provided with a steam inlet and a steam outlet, the steam outlet is communicated with the steam gap to introduce steam into the steam gap, and the steam inlet is communicated with the shell to vacuumize the interior of the evaporator. So set up, can carry out effectual recycle with the steam of waste liquid evaporation gained, saved evaporating equipment's energy consumption, greatly reduced the running cost of equipment when reinforcing evaporation efficiency.

Description

Low-temperature stirring evaporation equipment
Technical Field
The utility model relates to the technical field of environment-friendly equipment, in particular to low-temperature stirring evaporation equipment.
Background
With the high development of industrialization, the contradiction between the environmental pollution caused by industrial wastewater and the like and the demands of people for protecting ecological environment and improving living environment is continuously intensified. The existing industrial wastewater treatment mode generally comprises physical, chemical and biological treatment or a combination of the physical, chemical and biological treatment, wherein the treatment mode of physical heating concentration has high efficiency, and the volume of waste liquid can be greatly reduced. But the mode has the defects of higher energy consumption and low utilization rate of steam obtained by evaporating the waste liquid, so that the cost of waste liquid treatment is higher.
Therefore, it is necessary to design a low-temperature stirring evaporation device to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide low-temperature stirring evaporation equipment with low energy consumption.
In order to achieve the purpose, the utility model adopts the following technical scheme: a low-temperature stirring evaporation device comprises an evaporator and a steam supply device, wherein the evaporator is used for evaporating waste liquid, the evaporator comprises a shell, a stirring device which is arranged in the shell and used for stirring the waste liquid, and a heat insulation layer which at least partially covers the shell, and a steam gap for steam circulation is formed between the heat insulation layer and the shell; the steam supply device comprises a steam compressor, the steam compressor is provided with a steam inlet and a steam outlet, the steam outlet is communicated with the steam gap to introduce steam into the steam gap, and the steam inlet is communicated with the shell to vacuumize the interior of the evaporator.
As a further improved technical scheme, the stirring device comprises a stirring shaft and spiral blades, and the spiral blades are continuously arranged around the circumference of the stirring shaft.
As a further improved technical scheme, the stirring device further comprises a plurality of mounting columns, each mounting column extends along the radial direction of the stirring shaft, the mounting columns are uniformly distributed along the extending path of the helical blade, and the helical blade is connected with the stirring shaft through the mounting columns.
As a further improved technical scheme of the utility model, the scraper also comprises a plurality of scraping blades for scraping the inner wall of the shell, and the scraping blades are obliquely arranged towards the spiral direction of the spiral blades so as to scrape and transfer the materials from the inner wall of the shell.
As a further improved technical scheme of the utility model, the scraping blade is elastically installed on the stirring device, and the scraping blade is elastically abutted with the inner wall of the shell.
As a further improved technical scheme of the utility model, a gap is arranged between the helical blade and the stirring shaft.
As a further improved technical solution of the present invention, the steam supply device further includes a steam generator, the steam generator has an air inlet and an air outlet, the air inlet is connected to the evaporator, and the air outlet is connected to the steam compressor.
As a further improved technical scheme of the utility model, a spiral separator is also arranged between a steam inlet of the steam compressor and the shell so as to separate the gas and the liquid of the steam generated by evaporating the waste liquid.
As a further improved technical scheme, the system also comprises a waste liquid preheating device, wherein the waste liquid preheating device comprises a preheating tank and a heat exchanger arranged in the preheating tank, and the steam gap is communicated with the heat exchanger so as to provide a heat source for the heat exchanger.
As a further improved technical scheme of the utility model, a distilled water storage tank and a distilled water pump are also arranged between the steam gap and the heat exchanger to control the amount of distilled water entering the heat exchanger; the steam gap is also connected with a proportional control valve which is used for controlling the pressure of the steam in the steam gap.
According to the technical scheme, the steam compressor is communicated with the steam gap of the evaporator to provide a steam heating source, and the shell of the evaporator is connected with the steam inlet of the steam compressor, so that the steam compressor performs vacuum pumping operation in the shell while working, a negative pressure environment is provided for waste liquid evaporation, and the evaporation efficiency is high; through setting up agitating unit and stirring the waste liquid, further improve heat transfer and evaporation efficiency.
Drawings
FIG. 1 is a schematic structural diagram of a low-temperature stirring evaporation device of the present invention.
Fig. 2 is a perspective view of an evaporator according to the present invention.
Fig. 3 is a perspective view of the evaporator of the present invention in another direction.
Fig. 4 is a sectional view of the evaporator of fig. 3.
Fig. 5 is a perspective view of the stirring device and the blade assembly of fig. 4.
Fig. 6 is an enlarged view of the circled portion in fig. 5.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 6, the present invention provides a low temperature stirring evaporation apparatus, which includes an evaporator 1, a steam supply device and a waste liquid preheating device 3.
Please refer to fig. 1, which is used for evaporating waste liquid, and includes a housing 11, a stirring device 12 disposed in the housing 11 for stirring waste liquid, a blade assembly 13, and a heat insulation layer 14. The interior of the housing 11 forms an evaporation chamber, one end of which is provided with a waste liquid inlet (not numbered) for introducing waste liquid, and the other end of which is provided with a discharge opening 111 for discharging evaporation residue. The insulating layer 14 covers the housing 11 at least partially, and a steam gap for the circulation of steam is formed between the insulating layer 14 and the housing 11.
Referring to fig. 1, 3 and 4, the stirring device 12 includes a stirring shaft 121 driven by the speed reducer 4, a helical blade 122 and mounting posts 123, and the helical blade 122 is continuously disposed around the stirring shaft 121 in the circumferential direction. Each mounting post 123 extends along the radial direction of the stirring shaft 121, and a plurality of mounting posts 123 are uniformly arranged along the extending path of the helical blade 122, and the helical blade 122 is connected with the stirring shaft 121 through the mounting posts 123. Certain clearance is arranged between the helical blade 122 and the stirring shaft 121, so that when the stirring device 12 stirs the waste liquid, part of the waste liquid and the evaporation residues can flow back from the clearance, on one hand, the flow of the waste liquid is increased, the evaporation time of the waste liquid is prolonged, and on the other hand, the resistance of stirring by the helical blade 122 is reduced.
Referring to fig. 5 and 6, the blade assembly 13 includes a plurality of blades 131 and an elastic mounting member (not numbered) for elastically fixing the blades 131 to the stirring device 12. The scraping blade 131 and the helical blade 122 are coaxially rotated by the stirring shaft 123. The scraper 131 is used to scrape the inner wall of the housing 11 to scrape off the waste liquid and the evaporation residue on the inner wall of the housing 11. The elastic mounting member includes a fixing plate 132 connecting two adjacent mounting posts 123, a mounting plate 133 fixing the wiper 131, a mounting shaft 134 connected to the mounting plate 133, and a spring 135, wherein the spring 135 is sleeved on the mounting shaft 134, and the spring 135 is in a compressed state and abuts between the mounting plate 133 and the fixing plate 132.
In this embodiment, two fixing plates 132 disposed in parallel are disposed between two adjacent mounting posts 123, one end of the mounting shaft 134 is fixed on the mounting plate 133, the other end of the mounting shaft passes through the two fixing plates 132, the end of the mounting shaft is provided with a limiting block 136, the limiting block 136 cooperates with the spring 135 to press the scraping blade 131 against the inner wall of the casing 11, and the scraping blade 131 elastically abuts against the inner wall of the casing 11. Preferably, a plurality of support ribs 138 are disposed between the two fixing plates 132, and the support ribs 138 are respectively disposed at two sides of the mounting shaft 134 and close to the mounting shaft 134, so as to increase the strength of the fixing plates 132 in the extension and contraction direction of the spring 135. The two fixing plates 132 can limit the direction of the mounting columns 134, the mounting plate 133 and the scraping blades 131 thereon, which is perpendicular to the telescopic direction of the springs 135, so as to prevent the scraping blades 131 from swinging when scraping the inner wall of the shell 11, which affects the scraping effect.
The scraping blade 131 is preferably disposed obliquely toward the spiral direction of the spiral blade 122, that is, the scraping blade 131 is disposed obliquely with respect to the material moving direction, so as to scrape the material off the inner wall of the housing 11 and transfer the material toward the discharge opening 111. Preferably, 2 blades 131 are disposed in the same direction on each mounting plate 133.
In this embodiment, under the combined action of the blade 131 and the helical blade 122, the waste liquid turns and stirs in the housing 11 and gradually moves toward the discharge port 111, and in the process, the waste liquid is gradually evaporated and concentrated into an evaporation residue, and finally is discharged from the discharge port 111. In the process, the pumping of the waste liquid and the discharge of the evaporation residues are continuously carried out, and the treatment amount of the waste liquid is high.
Referring to fig. 3 and 4, in the embodiment, the heat insulation layer 14 is disposed at the lower portion of the housing 11, and when the waste liquid is introduced into the housing 11, the heat insulation layer 14 can cover a portion of the housing 11 corresponding to the waste liquid to heat the waste liquid. The heat insulating layer 14 is preferably a Miller plate having a steam inlet 141 and a drain 142 formed therein. Preferably, the steam inlet 141 is provided in plurality and is provided at an upper portion of the heat insulating layer 14, and the drain port 142 is provided at a bottom portion of the heat insulating layer 14. In the steam gap, the high-temperature and high-pressure steam exchanges heat with the waste liquid in the housing 11 and turns into a mixture of steam and distilled water with a lower temperature, and the mixture is discharged through the water outlet 142.
The steam supply device is used for introducing steam into the steam gap. Specifically, referring to fig. 1, the steam supply device includes a steam compressor 21 and a steam generator 22. The steam generator 22 is used to provide initial steam to the steam compressor 21 to start the evaporation process. The steam generator 22 has a gas inlet 221 and a gas outlet 222, the gas inlet 221 is connected to the evaporator 1, and the gas outlet 222 is connected to the steam compressor 21. The vapor compressor 21 has a vapor inlet 211 and a vapor outlet 212, the vapor outlet 212 communicates with the vapor gap 15 to introduce vapor into the vapor gap 15, and the vapor inlet 211 communicates with the casing 1 to evacuate the inside of the evaporator 1. On the one hand, steam compressor 21 provides high temperature high pressure steam in to steam clearance 15, improves evaporation efficiency, and on the other hand, among the evaporation process, steam compressor 21 continuously extracts steam from casing 11 through the pipeline, consequently can form the negative pressure state in casing 11, so sets up, has reduced the required temperature of waste liquid evaporation, and then has improved evaporation efficiency.
In operation, pure water, which may be obtained from tap water by passing through a reverse osmosis system, is first introduced into the steam generator 22. The initial steam generated by the steam generator 22 enters the steam compressor 21 to be pressurized and heated, so as to form high-temperature and high-pressure steam, and the high-temperature and high-pressure steam is introduced into the shell 11 and exchanges heat with the waste liquid. In other embodiments, the steam compressor 21 may be directly externally connected to a steam source for supplying the initial steam.
Referring to fig. 1, in the present embodiment, the steam gap is further connected with a proportional control valve 8, and the proportional control valve 8 is used for controlling the pressure of the steam in the steam gap. On one hand, the proportional control valve 8 controls the steam compressor 21 to provide high-temperature and high-pressure steam with a stable state, on the other hand, the proportional control valve 8 can indirectly control the pressure of the steam inlet 211 of the steam compressor 21 by controlling the steam pressure of the steam outlet 212 of the steam compressor 21, so that the negative pressure in the evaporator 1 is in a stable state, and the arrangement improves the stability of the operation of the equipment.
A spiral separator 71 is further provided between the steam inlet 211 of the steam compressor 21 and the housing 11 to separate the vapor generated by evaporation of the waste liquid into gas and liquid. Specifically, the housing 11 is connected with a spiral separator 71, and after separation by the spiral separator 71, the steam is introduced into the steam generator 22 for recycling. Preferably, a steam filter 72 is provided at an upper portion of the steam generator 22. The vapor evaporated from the waste liquid in the evaporator 1 will carry part of the liquid and solid impurities, the mixture firstly enters the spiral separator 71, when contacting with the spiral blade of the spiral separator 71, the liquid and solid impurities in the mixture will adhere to the surface of the spiral blade and flow down along the surface, the vapor therein will spirally go upwards and gradually separate out, and the primary purification of the vapor is completed in the spiral separator 71. The steam then enters the steam generator 22 and is further filtered through the upper steam screen 72 to further remove impurities. The spiral separator 71 is also externally connected with a defoaming device 9, and the defoaming device 9 is used for providing defoaming agent into the spiral separator 71.
In this embodiment, the waste liquid is preheated by the waste liquid preheating device 3 and then pumped into the evaporator 1. Specifically, the waste liquid preheating device 3 includes a waste liquid preheating tank 31 and a heat exchanger 32 disposed inside the waste liquid preheating tank 31. The steam gap communicates with the heat exchanger 32 to provide a heat source to the heat exchanger 32. So set up, can carry out effectual recycle with the steam after the 1 heat transfer of evaporimeter, improve waste liquid initial temperature, further reduce the required heat of evaporation. Preferably, a distilled water storage tank 33 and a distilled water pump 34 are further provided between the evaporator 1 and the heat exchanger 32 to control the amount of distilled water entering the heat exchanger 32. The outlet of the proportional control valve 8 is connected to a distilled water storage tank 33.
In summary, the vapor compressor is communicated with the vapor gap of the evaporator to provide a vapor heating source, and the shell of the evaporator is connected with the vapor inlet of the vapor compressor, so that the vapor compressor performs vacuum pumping operation in the shell while working, a negative pressure environment is provided for waste liquid evaporation, and the evaporation efficiency is high; according to the utility model, the spiral blade is arranged to stir the waste liquid, the inclined scraping blade is used to scrape the inner wall of the shell and transfer the scraped materials, and the spiral blade and the scraping blade are matched with each other, so that on one hand, the stirring amplitude of the waste liquid and the concentrated evaporation residues of the waste liquid can be increased, the heat exchange is increased, the evaporation efficiency is further improved, and on the other hand, the materials are transferred to the discharge port, so that the evaporation process can be continuously carried out.
Terms such as "upper", "lower", and the like, used herein to denote relative spatial positions, are used herein for ease of description to describe one feature's relationship to another feature as illustrated in the figures. It will be understood that the spatially relative positional terms may be intended to encompass different orientations than those shown in the figures depending on the product presentation position and should not be construed as limiting the claims.
In addition, the above embodiments are only used for illustrating the utility model and not for limiting the technical solutions described in the utility model, and the understanding of the present specification should be based on the technical personnel in the field, and although the present specification has described the utility model in detail by referring to the above embodiments, the ordinary skilled in the art should understand that the technical personnel in the field can still make modifications or equivalent substitutions to the present invention, and all the technical solutions and modifications thereof without departing from the spirit and scope of the present invention should be covered in the claims of the present invention.

Claims (10)

1. A low temperature stirring evaporation equipment which characterized in that: the waste liquid evaporator comprises an evaporator and a steam supply device, wherein the evaporator is used for evaporating waste liquid, the evaporator comprises a shell, a stirring device which is arranged in the shell and is used for stirring the waste liquid, and a heat insulation layer which at least partially covers the shell, and a steam gap for steam circulation is formed between the heat insulation layer and the shell; the steam supply device comprises a steam compressor, the steam compressor is provided with a steam inlet and a steam outlet, the steam outlet is communicated with the steam gap to introduce steam into the steam gap, and the steam inlet is communicated with the shell to vacuumize the interior of the evaporator.
2. A cryogenic stirring vaporizer apparatus as recited in claim 1, wherein: the stirring device comprises a stirring shaft and spiral blades, and the spiral blades are continuously arranged around the circumference of the stirring shaft.
3. A cryogenic stirring vaporization device as recited in claim 2, wherein: the stirring device further comprises a plurality of mounting columns, each mounting column extends along the radial direction of the stirring shaft, the mounting columns are evenly distributed along the extending path of the helical blade, and the helical blade is connected with the stirring shaft through the mounting columns.
4. A cryogenic stirring vaporizer apparatus as recited in claim 3, wherein: the scraper is obliquely arranged towards the spiral direction of the spiral blade so as to scrape and transfer the material from the inner wall of the shell.
5. The cryogenic stirring vaporization device of claim 4, wherein: the scraping piece is elastically arranged on the stirring device and elastically abutted against the inner wall of the shell.
6. A cryogenic stirring vaporization device as recited in claim 2, wherein: and a gap is arranged between the helical blade and the stirring shaft.
7. A cryogenic stirring vaporizer apparatus as recited in claim 1, wherein: the steam supply device further comprises a steam generator, the steam generator is provided with an air inlet and an air outlet, the air inlet is connected with the evaporator, and the air outlet is connected with the steam compressor.
8. A cryogenic stirring vaporization device as recited in claim 1, wherein: and a spiral separator is arranged between a steam inlet of the steam compressor and the shell so as to separate gas and liquid of steam generated by evaporation of waste liquid.
9. A cryogenic stirring vaporization device as recited in claim 1, wherein: still include waste liquid preheating device, waste liquid preheating device includes preheating tank and locates the inside heat exchanger of preheating tank, steam clearance and heat exchanger intercommunication to the heat exchanger provides the heat source.
10. A cryogenic stirring vaporization device as recited in claim 9, wherein: a distilled water storage tank and a distilled water pump are also arranged between the steam gap and the heat exchanger so as to control the amount of distilled water entering the heat exchanger; the steam gap is also connected with a proportional control valve which is used for controlling the pressure of the steam in the steam gap.
CN202121394409.8U 2021-06-23 2021-06-23 Low-temperature stirring evaporation equipment Active CN216934717U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121394409.8U CN216934717U (en) 2021-06-23 2021-06-23 Low-temperature stirring evaporation equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121394409.8U CN216934717U (en) 2021-06-23 2021-06-23 Low-temperature stirring evaporation equipment

Publications (1)

Publication Number Publication Date
CN216934717U true CN216934717U (en) 2022-07-12

Family

ID=82289314

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121394409.8U Active CN216934717U (en) 2021-06-23 2021-06-23 Low-temperature stirring evaporation equipment

Country Status (1)

Country Link
CN (1) CN216934717U (en)

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