CN115089983A - Self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and use method - Google Patents
Self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and use method Download PDFInfo
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- CN115089983A CN115089983A CN202210752211.5A CN202210752211A CN115089983A CN 115089983 A CN115089983 A CN 115089983A CN 202210752211 A CN202210752211 A CN 202210752211A CN 115089983 A CN115089983 A CN 115089983A
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- evaporation
- shaft sleeve
- pipe
- heating
- cleaning
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- 238000001704 evaporation Methods 0.000 title claims abstract description 81
- 230000008020 evaporation Effects 0.000 title claims abstract description 80
- 238000004140 cleaning Methods 0.000 title claims abstract description 48
- 239000002920 hazardous waste Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims abstract description 75
- 239000002351 wastewater Substances 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000007790 scraping Methods 0.000 claims abstract description 19
- 239000013078 crystal Substances 0.000 claims abstract description 8
- 150000003839 salts Chemical class 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000008187 granular material Substances 0.000 abstract description 3
- 238000009991 scouring Methods 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000010025 steaming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/04—Evaporators with horizontal tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D1/00—Evaporating
- B01D1/26—Multiple-effect evaporating
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/023—Cleaning the external surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
- B08B9/027—Cleaning the internal surfaces; Removal of blockages
- B08B9/032—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing
- B08B9/0321—Cleaning the internal surfaces; Removal of blockages by the mechanical action of a moving fluid, e.g. by flushing using pressurised, pulsating or purging fluid
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to environment-friendly equipment, in particular to a self-cleaning evaporator for evaporation concentration of hazardous waste leachate and a use method thereof, wherein the evaporator comprises an evaporation box, a plurality of groups of heating units are hermetically arranged in the evaporation box, and each heating unit is provided with a cleaning device; the bottom of the evaporation box is provided with a water inlet through which the wastewater enters the evaporation box and a water outlet through which the wastewater flows out of the evaporation box; the heating unit comprises a heating pipe which is arranged in the evaporation box in a sealing mode and is of a hollow structure, and the cleaning device comprises a spiral scraping blade which is rotationally coated on the outer wall of the heating pipe. Strike off the blade subsides through the spiral and cover and rotate on the outer wall of heating pipe, utilize its strong scouring force can wash incrustation scale and the salt crystal granule of adhesion that the heating pipe surface formed, keep heating pipe surface cleaning, guarantee that the heating pipe surface can not the scale deposit, avoid the evaporimeter scale deposit and cause heat exchange efficiency to descend and need regular disassembly equipment to carry out mechanical cleaning's loaded down with trivial details.
Description
Technical Field
The invention relates to environment-friendly equipment, in particular to a self-cleaning evaporator for evaporation concentration of hazardous waste leachate and a using method thereof.
Background
The MVR evaporator is a novel high-efficiency energy-saving evaporation device mainly applied to the pharmaceutical industry, the device adopts a low-temperature and low-pressure steaming technology and clean energy to generate steam as energy, water in a medium is separated out, the MVR evaporator is an internationally advanced evaporation technology, and the MVR evaporator is an upgrading and updating product for replacing a traditional evaporator.
The MVR evaporator utilizes secondary steam generated in the evaporator, is compressed by a compressor to increase the pressure and the temperature and increase the enthalpy, and then is sent to a heating chamber of the evaporator to be used as heating steam, so that the processed feed liquid is kept in a boiling state, and the heating steam is condensed into water; the original steam to be discarded is fully utilized, the latent heat is recovered, the heat efficiency is improved, and the production cost is reduced; is widely applied to the pharmaceutical industry.
A large amount of hazardous waste leachate can be generated in the pharmaceutical process, the total hardness of the hazardous waste leachate is high, the wastewater is easy to scale in the evaporation concentration process, and the heat exchange efficiency is seriously influenced after long-term operation; and the raw water has high salt content, and a large amount of crystals are separated out in the later stage of concentration.
Disclosure of Invention
The invention aims to provide a self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and a using method thereof, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a self-cleaning evaporator for evaporation concentration of hazardous waste leachate comprises an evaporation box, wherein a plurality of groups of heating units are hermetically arranged in the evaporation box, and a cleaning device is arranged on each heating unit;
the bottom of the evaporation box is provided with a water inlet through which wastewater enters the evaporation box and a water outlet through which the wastewater flows out of the evaporation box;
the heating unit is in including sealed setting just be hollow structure's heating pipe in the evaporating box, cleaning device is including rotating the cladding spiral scraping blade on the heating pipe outer wall.
The above-mentioned dangerous useless leachate evaporates the concentrated self-cleaning evaporator of using: the number of the heating units is three, end plates are arranged at the end part of each group of heating units, and the end plates are connected with the side wall of the evaporation box;
the both ends of heating pipe are all fixed and are linked up there is the extension pipe, the extension pipe link up the end disc, wherein the extension pipe tip of one end seals, and the extension pipe tip of the other end is uncovered, and open end and the storehouse intercommunication is collected to the condensation.
The above-mentioned dangerous useless leachate evaporates the concentrated self-cleaning evaporator of using: the outer wall of the evaporation box is provided with a heater which is matched with the steam distribution bin; the steam distribution bin is communicated with a steam pipe through a guide pipe, the steam pipe is provided with a plurality of branches, and each branch corresponds to one of the extension pipes in the group of heating units and is communicated with the extension pipe with one closed end.
The above-mentioned dangerous useless leachate evaporates the concentrated self-cleaning evaporator of using: a first shaft sleeve and a second shaft sleeve are respectively arranged at two ends of the spiral scraping blade, wherein the first shaft sleeve and the second shaft sleeve are respectively in sealed rotary fit with the extension pipes at two ends of the heating pipe;
the first shaft sleeve and the second shaft sleeve respectively penetrate through the end discs on two sides of the evaporation box and are in sealed rotating fit with the end discs;
the second shaft sleeve is in sealing, rotating and fitting joint with the extension pipe with one closed end.
The above-mentioned dangerous useless leachate evaporates the concentrated self-cleaning evaporator of using: the outer edge of the extension pipe with one closed end is provided with a plurality of air inlets at equal intervals along the circumference, the second shaft sleeve is provided with a conduction port, and the conduction port and the air inlets are positioned at the same axial position;
the outer wall of the second shaft sleeve is sleeved with a sealing cover in a sealing and rotating mode, the sealing cover is located outside the evaporation box, a flow cavity is formed in the sealing cover, the conduction mask is arranged in the flow cavity, and the flow cavity in the sealing cover is communicated with the steam pipe.
The above-mentioned useless leachate evaporation concentration of danger uses the self-cleaning evaporator: the evaporation box is arranged on the underframe, one side of the underframe is provided with the motor, one of the second shaft sleeves is provided with a large belt wheel, the large belt wheel is connected with a small belt wheel at the output end of the motor through a first belt, and a first shaft sleeve at the middle position is connected with a first shaft sleeve coaxial with the large belt wheel through a second belt; and the second shaft sleeve far away from the large belt wheel is connected with the second shaft sleeve at the middle position through a third belt.
The use method of the self-cleaning evaporator for evaporation concentration of the hazardous waste leachate comprises the following steps:
firstly, steam is communicated, hot steam in a steam boiler is introduced into a steam distribution bin, is further heated by a heater and then is discharged into an extension pipe on one side of the steam distribution bin through a guide pipe and a steam pipe, and a plurality of heating pipes are preheated;
step two, pumping the wastewater, namely communicating the water inlet with a wastewater pump, introducing the wastewater into an evaporation tank, and opening a water outlet after the content of the wastewater in the evaporation tank reaches a preset liquid level height so that the wastewater circularly flows between the water inlet and the water outlet;
and step three, starting cleaning, wherein when the wastewater stably flows in the evaporation tank, a motor is started to drive the spiral scraping blades in the multiple groups of cleaning assemblies to rotate simultaneously, and scale and salt crystal particles adhered to the surface of the heating pipe are scraped.
Compared with the prior art, the invention has the beneficial effects that: when the waste water flows through the evaporation box, the waste water absorbs the heat emitted by the heating pipe; the steam after heat release is condensed and then flows out of the evaporation box through the hollow heating pipe, and is discharged through the condensed water collecting bin; strike off the blade through the spiral and paste and cover and rotate on the outer wall of heating pipe, utilize its strong washing force can wash incrustation scale and the salt crystal granule of adhesion that the heating pipe surface formed, keep heating pipe surface cleaning, guarantee that the heating pipe surface can not the scale deposit, avoid the evaporimeter scale deposit and cause heat exchange efficiency to descend and need regularly dismantle equipment and carry out mechanical cleaning's loaded down with trivial details.
Drawings
FIG. 1 is a schematic structural diagram of a self-cleaning evaporator for evaporation concentration of hazardous waste leachate;
FIG. 2 is a schematic view of the self-cleaning evaporator for evaporation and concentration of hazardous waste leachate from another angle;
FIG. 3 is a schematic diagram of a half-section structure of a single heating unit and a cleaning device in a self-cleaning evaporator for evaporation and concentration of hazardous waste leachate;
FIG. 4 is a schematic view of the heating unit and the cleaning device shown in FIG. 3, with the heating unit and the cleaning device disassembled;
FIG. 5 is a top view of the heating unit and the cleaning device;
FIG. 6 is a sectional view taken along line A-A of FIG. 5;
in the figure: 1-an evaporation box; 2-a heater; 3-a steam distribution bin; 4-a chassis; 5-end disc; 6-an extension tube; 7-a first sleeve; 8-helical scraping blade; 9-a second shaft sleeve; 10-heating a tube; 11-an air inlet; 12-a conduction port; 13-sealing the cover; 14-a motor; 15-a belt; 16-large belt wheel; 17-belt number two; a No. 18-III belt; 19-steam pipe; 20-flow chamber.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1 to 6, as an embodiment of the present invention, the self-cleaning evaporator for evaporation concentration of hazardous waste leachate includes an evaporation tank 1, a plurality of groups of heating units are hermetically disposed in the evaporation tank 1, and a cleaning device is disposed on each of the heating units;
the bottom of the evaporation box 1 is provided with a water inlet through which waste water enters the evaporation box 1 and a water outlet through which the waste water flows out of the evaporation box 1;
the heating unit comprises a heating pipe 10 which is arranged in the evaporation box 1 in a sealing mode and is of a hollow structure, and the cleaning device comprises a spiral scraping blade 8 which is rotationally coated on the outer wall of the heating pipe 10.
The hot steam flows through the heating pipe 10, and the waste water in the evaporation tank 10 is heated by heat released by the heating pipe 10, so that the waste water absorbs heat; because the waste water enters the evaporation box 1 from the water inlet and then flows out from the water outlet, when the waste water flows through the evaporation box 1, the waste water can absorb the heat emitted by the heating pipe 10; the steam after heat release is condensed and then flows out of the evaporation box 1 through the hollow heating pipe 10 and is discharged through a condensate collecting bin (not shown in the figure); scrape blade 8 subsides through the spiral and cover and rotate on the outer wall of heating pipe 10, utilize its strong scouring force can wash incrustation scale and the salt crystal granule of adhesion that heating pipe 10 surfaces formed, keep heating pipe 10 clean surfaces, guarantee that heating pipe 10 surfaces can not the scale deposit, avoid the evaporimeter scale deposit and cause heat exchange efficiency to descend and need regularly dismantle equipment and carry out mechanical cleaning's loaded down with trivial details.
As a further scheme of the invention, in the structure shown in the invention, three groups of heating units are provided, the end part of each group of heating units is provided with an end disc 5, and the end discs 5 are fixed with the side wall of the evaporation box 1;
the both ends of heating pipe 10 are all fixed and are linked together and have extension pipe 6, extension pipe 6 link up end disc 5, and wherein the extension pipe 6 tip of one end is sealed, and the extension pipe 6 tip of the other end is uncovered, and the opening end is collected the storehouse with congealing water and is linked together.
Hot steam is introduced into one of the extension pipes 6, and then the hot steam flows into the heating pipe 10, so that the heating pipe 10 can heat the wastewater in the evaporation tank 1, and the hot steam in the heating pipe 10 releases heat and then flows into the condensed water collection bin through the other extension pipe 6.
As a further scheme of the invention, a heater 2 is installed on the outer wall of the evaporation box 1, and the heater 2 is matched with the steam distribution bin 3 to further heat the hot steam in the steam distribution bin 3; the steam distribution bin 3 is communicated with a steam pipe 19 through a conduit, and the steam pipe 19 is provided with a plurality of branches, each branch corresponds to one extension pipe 6 in one group of heating units and is communicated with the extension pipe 6 with one closed end.
Because the hot steam is discharged by the heating boiler and has partial heat loss after being transmitted by the pipeline, in order to ensure that the hot steam entering the evaporation box 1 has a stable initial temperature, in the application, the evaporation box 1 is provided with the heater 2, and the heat compensation is carried out on the hot steam in the steam distribution bin 3 through the heater 2, so that the temperature of the hot steam in the steam distribution bin 3 is ensured; the hot steam flows into the steam pipe 19 through the conduit after being further heated in the steam distribution chamber 3, and finally flows into each extension pipe 6.
As a further scheme of the present invention, a first shaft sleeve 7 and a second shaft sleeve 9 are respectively fixed at two ends of the spiral scraping blade 8, wherein the first shaft sleeve 7 and the second shaft sleeve 9 are respectively sealed and rotationally attached to the extension pipes 6 at two ends of the heating pipe 10;
the first shaft sleeve 7 and the second shaft sleeve 9 respectively penetrate through the end discs 5 on two sides of the evaporation box 1 and are in sealed rotating fit with the end discs 5;
the second shaft sleeve 9 is in sealing and rotating fit with the extension pipe 6 with one closed end.
Because the first shaft sleeve 7 and the second shaft sleeve 9 are fixed at two ends of the spiral scraping blade 8 and penetrate through the end disc 5, the spiral scraping blade 8 can be driven to rotate by the rotation of the first shaft sleeve 7 or the second shaft sleeve 9 so as to scrape off dirt and crystal attached to the outer wall of the heating pipe 10.
As a further scheme of the present invention, a plurality of air inlets 11 are equidistantly formed along the circumference at the outer edge of the extension pipe 6 with one end closed, a conduction opening 12 is formed on the second shaft sleeve 9, and the conduction opening 12 and the air inlets 11 are located at the same axial position;
the outer wall of the second shaft sleeve 9 is hermetically and rotatably sleeved with a sealing cover 13, the sealing cover 13 is positioned outside the evaporation box 1, a flowing cavity 20 is arranged inside the sealing cover 13, the conduction opening 12 is covered in the flowing cavity 20, and the flowing cavity 20 in the sealing cover 13 is communicated with a steam pipe 19.
Hot steam in the steam pipe 19 enters the flowing cavity 20 in the sealing cover 13, then enters the air inlet 11 through the conduction opening 12, and finally enters the extension pipe 6 with one closed end; so that the hot steam can flow from the extension pipe 6 with one end closed to the heating pipe 10 and then flow into the condensate collecting bin through the other extension pipe 6.
As a further scheme of the invention, the evaporation box 1 is installed on an underframe 4, one side of the underframe 4 is provided with a motor 14, one of the second shaft sleeves 9 is connected with a large belt pulley 16, the large belt pulley is connected with a small belt pulley at the output end of the motor 14 through a first belt 15, and a first shaft sleeve 7 at the middle position is connected with a first shaft sleeve 7 which is coaxial with the large belt pulley 16 through a second belt 17; the second hub 9 remote from the large pulley 16 is connected to the second hub 9 at an intermediate position by a third belt 18.
The motor 14 works to drive the output shaft of the motor to rotate, the small belt wheel is matched with a belt 15 to drive a large belt wheel 16 to rotate, the large belt wheel 16 drives one of the second shaft sleeves 9 to rotate, the second shaft sleeve 9 rotates to drive the spiral scraping blade 8 fixed with the second shaft sleeve to rotate, and the spiral scraping blade 8 drives the first shaft sleeve 7 fixed with the second shaft sleeve to rotate; the rotating first shaft sleeve 7 drives the first shaft sleeve 7 at the middle position to rotate through a second belt 17, so that the spiral scraping blade 8 at the middle position is driven to rotate, and the spiral scraping blade 8 at the middle position drives the second shaft sleeve 9 fixed with the spiral scraping blade 8 to rotate; the second shaft sleeve 9 at the middle position finally drives the second shaft sleeve 9 at the most edge to rotate through the third belt 18, so that the spiral scraping blade 8 at the most edge rotates, and the multiple groups of cleaning devices can work simultaneously by the arrangement, and the surfaces of the heating pipes 10 in the multiple groups of heating units are cleaned.
In addition, the invention also provides a use method of the above-mentioned self-cleaning evaporator for evaporation concentration of hazardous waste leachate, which comprises the following steps:
firstly, steam is communicated, hot steam in a steam boiler is introduced into a steam distribution bin, is further heated by a heater and then is discharged into an extension pipe on one side of the steam distribution bin through a guide pipe and a steam pipe, and a plurality of heating pipes are preheated;
step two, pumping the wastewater, namely communicating the water inlet with a wastewater pump, introducing the wastewater into an evaporation tank, and opening a water outlet after the content of the wastewater in the evaporation tank reaches a preset liquid level height so that the wastewater circularly flows between the water inlet and the water outlet;
and step three, starting cleaning, wherein when the wastewater stably flows in the evaporation tank, a motor is started to drive the spiral scraping blades in the multiple groups of cleaning assemblies to rotate simultaneously, and scale and salt crystal particles adhered to the surface of the heating pipe are scraped.
The above embodiments are exemplary rather than limiting, and embodiments of the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.
Claims (7)
1. The self-cleaning evaporator for the evaporation concentration of the hazardous waste leachate is characterized by comprising an evaporation box (1), wherein a plurality of groups of heating units are hermetically arranged in the evaporation box (1), and each heating unit is provided with a cleaning device;
the bottom of the evaporation box (1) is provided with a water inlet through which wastewater enters the evaporation box (1) and a water outlet through which the wastewater flows out of the evaporation box (1);
the heating unit comprises a heating pipe (10) which is arranged in the evaporation box (1) in a sealing mode and is of a hollow structure, and the cleaning device comprises a spiral scraping blade (8) which is rotationally coated on the outer wall of the heating pipe (10).
2. The hazardous waste leachate evaporation concentration self-cleaning evaporator according to claim 1, wherein the heating units are in three groups, the end of each group of heating units is provided with an end disc (5), and the end discs (5) are connected with the side wall of the evaporation tank (1);
the both ends of heating pipe (10) are all fixed and are communicated with extension pipe (6), extension pipe (6) link up end disc (5), and wherein extension pipe (6) tip of one end is sealed, and extension pipe (6) tip of the other end is uncovered, and the opening end with congeal water and collect the storehouse intercommunication.
3. The hazardous waste leachate evaporation concentration self-cleaning evaporator according to claim 2, wherein the outer wall of the evaporation tank (1) is provided with a heater (2), and the heater (2) is matched with the steam distribution bin (3); the steam distribution bin (3) is communicated with a steam pipe (19) through a guide pipe, the steam pipe (19) is provided with a plurality of branches, each branch corresponds to one extension pipe (6) in one group of heating units and is communicated with the extension pipe (6) with one closed end.
4. The hazardous waste leachate evaporation concentration self-cleaning evaporator according to claim 3, wherein the two ends of the spiral scraping blade (8) are respectively provided with a first shaft sleeve (7) and a second shaft sleeve (9), wherein the first shaft sleeve (7) and the second shaft sleeve (9) are respectively in sealing, rotating and fitting with the extension pipes (6) at the two ends of the heating pipe (10);
the first shaft sleeve (7) and the second shaft sleeve (9) respectively penetrate through the end discs (5) on two sides of the evaporation box (1) and are in sealed rotating fit with the end discs (5);
the second shaft sleeve (9) is in sealed rotating joint with the extension pipe (6) with one closed end.
5. The hazardous waste leachate evaporation concentration self-cleaning evaporator according to claim 4, wherein the outer edge of the extension pipe (6) with one closed end is provided with a plurality of air inlets (11) at equal intervals along the circumference, the second shaft sleeve (9) is provided with a conduction port (12), and the conduction port (12) and the air inlets (11) are positioned at the same axial position;
the outer wall of the second shaft sleeve (9) is hermetically and rotatably sleeved with a sealing cover (13), the sealing cover (13) is located outside the evaporation box (1), a flowing cavity (20) is arranged inside the sealing cover (13), the conduction opening (12) is covered in the flowing cavity (20), and the flowing cavity (20) in the sealing cover (13) is communicated with the steam pipe (19).
6. The hazardous waste leachate evaporation concentration self-cleaning evaporator according to claim 4, wherein the evaporation tank (1) is mounted on a chassis (4), a motor (14) is mounted on one side of the chassis (4), a large belt wheel (16) is arranged on one of the second shaft sleeves (9), the large belt wheel is connected with a small belt wheel at the output end of the motor (14) through a first belt (15), and the first shaft sleeve (7) at the middle position is connected with a first shaft sleeve (7) coaxial with the large belt wheel (16) through a second belt (17); the second shaft sleeve (9) far away from the large belt wheel (16) is connected with the second shaft sleeve (9) at the middle position through a third belt (18).
7. The use method of the self-cleaning evaporator for evaporation concentration of hazardous waste leachate according to any one of claims 1-6, comprising the following steps:
firstly, steam is communicated, hot steam in a steam boiler is introduced into a steam distribution bin, is further heated by a heater and then is discharged into an extension pipe on one side of the steam distribution bin through a guide pipe and a steam pipe, and a plurality of heating pipes are preheated;
step two, pumping the wastewater, namely communicating the water inlet with a wastewater pump, introducing the wastewater into an evaporation tank, and opening a water outlet after the content of the wastewater in the evaporation tank reaches a preset liquid level height so that the wastewater circularly flows between the water inlet and the water outlet;
and step three, starting cleaning, wherein when the wastewater stably flows in the evaporation tank, a motor is started to drive the spiral scraping blades in the multiple groups of cleaning assemblies to rotate simultaneously, and scale and salt crystal particles adhered to the surface of the heating pipe are scraped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752211.5A CN115089983A (en) | 2022-06-29 | 2022-06-29 | Self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210752211.5A CN115089983A (en) | 2022-06-29 | 2022-06-29 | Self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115089983A true CN115089983A (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210752211.5A Pending CN115089983A (en) | 2022-06-29 | 2022-06-29 | Self-cleaning evaporator for evaporation and concentration of hazardous waste leachate and use method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115089983A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962310A (en) * | 1959-10-12 | 1964-07-01 | William Harry Arlett Webb | Improvements relating to evaporators |
| DE4135816A1 (en) * | 1990-10-30 | 1992-07-09 | Magdy El Allawy Mohamed | Compact thin film heat exchanger with heating assembly - useful for treating pourable materials, comprises wiper assembly with holes preventing dry zones, for prod. heating, evapn. and drying |
| CN213912364U (en) * | 2020-08-26 | 2021-08-10 | 山东皓皓环保科技有限公司 | Automatic descaling evaporating device |
| CN214861226U (en) * | 2021-08-06 | 2021-11-26 | 山东新华医药化工设计有限公司 | Evaporator for chemical production and capable of improving evaporation efficiency |
-
2022
- 2022-06-29 CN CN202210752211.5A patent/CN115089983A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB962310A (en) * | 1959-10-12 | 1964-07-01 | William Harry Arlett Webb | Improvements relating to evaporators |
| DE4135816A1 (en) * | 1990-10-30 | 1992-07-09 | Magdy El Allawy Mohamed | Compact thin film heat exchanger with heating assembly - useful for treating pourable materials, comprises wiper assembly with holes preventing dry zones, for prod. heating, evapn. and drying |
| CN213912364U (en) * | 2020-08-26 | 2021-08-10 | 山东皓皓环保科技有限公司 | Automatic descaling evaporating device |
| CN214861226U (en) * | 2021-08-06 | 2021-11-26 | 山东新华医药化工设计有限公司 | Evaporator for chemical production and capable of improving evaporation efficiency |
Non-Patent Citations (1)
| Title |
|---|
| 宋志伟等: "《水污染控制工程》", 31 July 2013, 中国矿业大学出版社, pages: 373 * |
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