CN209771359U - Electrode heating evaporating pot - Google Patents
Electrode heating evaporating pot Download PDFInfo
- Publication number
- CN209771359U CN209771359U CN201822268934.XU CN201822268934U CN209771359U CN 209771359 U CN209771359 U CN 209771359U CN 201822268934 U CN201822268934 U CN 201822268934U CN 209771359 U CN209771359 U CN 209771359U
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- tank body
- waste acid
- pipe
- outlet pipe
- electrode heating
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- Expired - Fee Related
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides an electrode heating evaporating pot comprises row's sediment outlet pipe, jar body, electrode heating plate subassembly, hot spent acid import pipe, manhole, steam outlet pipe, silk screen demister, cable encapsulation pipe, wiring seal groove, insulating layer, concentrated spent acid outlet pipe, wherein: the bottom of the tank body is provided with a slag discharging outlet pipe which is connected with a slag liquid conveying pipe; an electrode heating plate component is arranged at the lower part of the tank body to heat the hot waste acid; a hot waste acid inlet pipe is arranged in the middle of the tank body and is connected with a hot waste acid conveying pipe; a manhole is arranged at the upper part of the tank body, so that workers can conveniently enter the tank for maintenance; a steam outlet pipe is arranged at the top of the tank body and is connected with a steam pipe; a wire mesh demister is arranged in the upper part of the tank body to separate liquid foam carried by ascending steam flow; the insulating layer is arranged outside the tank body, so that people are not injured due to electric leakage during working; the lower part of the tank body is provided with a concentrated waste acid outlet pipe which is connected with a concentrated waste acid conveying pipe. The energy-saving device has the advantages of remarkable energy-saving effect, simple structure, reliable work, convenience in installation and the like.
Description
Technical Field
The utility model relates to a concentrated operation process of chemical industry field liquid specifically is an electrode heating evaporating pot.
Background
In the field of chemical industry, a plurality of liquid raw materials and semi-finished products need to be concentrated and processed into products; in order to meet the requirement of environmental protection, the concentration treatment of waste acid and waste liquid generally adopts the operation process of steam heating evaporation.
For example, in the production of titanium dioxide by a sulfuric acid method, the most difficult problem to be solved is the effective recycling of waste acid, because the waste acid with the acid concentration of about 20 percent accounts for 70 percent of the treated waste, and the concentration, impurity removal, treatment and recycling or reuse of the waste acid are serious problems which cannot be volatilized and accepted in the industry all the time.
In the method for treating waste acid by observing the sulfuric acid method titanium dioxide enterprises at home and abroad, the waste acid concentration is the most important method, and a plurality of large-scale sulfuric acid method titanium dioxide enterprises at home and abroad use the concentration method to treat the waste acid. The waste acid concentration method is to heat the waste acid to increase the concentration of sulfuric acid and then return the waste acid to the acidolysis process. The concentration method may be immersion combustion or evaporation. The immersion combustion method is an early concentration process, the process is that high-temperature gas (about 1200 ℃) generated in a combustion chamber is directly sprayed into waste acid, so that the water content of the waste acid is evaporated to play a role of concentrating the waste acid, ferrous sulfate dissolved in the waste acid is separated out in the form of ferrous sulfate monohydrate due to the increase of the concentration of sulfuric acid, the concentration of the sulfuric acid concentrated by the method is not high, the corrosion of equipment is severe, and the former Soviet Union uses the method to concentrate the waste sulfuric acid to 55% for sale or use for producing phosphate fertilizers. Evaporating and concentrating, namely concentrating about 20 percent of waste sulfuric acid to more than 40 percent, 50 percent, 70 percent and even more than 90 percent according to the evaporation intensity and the concentration grade, wherein the method is a concentration method commonly adopted by titanium dioxide enterprises at home and abroad in recent years, but has some problems which are difficult to overcome, such as: (1) the evaporation pipeline is easy to block and the operation is unstable; (2) the requirement on equipment materials is high, and the investment is large; (3) the operation is complex, the maintenance is difficult, so the method is not suitable for small and medium-sized titanium dioxide enterprises in China.
The related publications report some new methods for concentrating titanium dioxide waste acid. For example: the inventor of the invention discloses a method for concentrating titanium white waste acid with low energy consumption, low investment and simple treatment method, wherein the adopted special equipment is an electrode heating evaporation tank, and other published documents are not found to be reported so far.
Disclosure of Invention
The utility model aims at providing an evaporation professional equipment that evaporation is abundant, concentrate can the layering circulation, the concentrate crystallization is appeared and be difficult for blockking up, simple structure, investment economize specifically is an electrode heating evaporating pot.
the utility model discloses a realize like this, an electrode heating evaporating pot comprises row's sediment outlet pipe, jar body, electrode heating plate subassembly, hot waste acid import pipe, manhole, steam outlet pipe, silk screen demister, cable encapsulation pipe, wiring seal groove, insulating layer, dense waste acid outlet pipe, characterized by: the bottom of the tank body is provided with a slag discharging outlet pipe which is connected with a slag liquid conveying pipe; an electrode heating plate component is arranged at the lower part of the tank body to heat the hot waste acid; a hot waste acid inlet pipe is arranged in the middle of the tank body and is connected with a hot waste acid conveying pipe; a manhole is arranged at the upper part of the tank body, so that workers can conveniently enter the tank for maintenance; a steam outlet pipe is arranged at the top of the tank body and is connected with a steam pipe; a wire mesh demister is arranged in the upper part of the tank body to separate liquid foam carried by ascending steam flow; the middle part of the tank body is provided with a cable packaging pipe which is an external power supply connector; a wiring sealing groove is arranged on one side of the electrode heating plate assembly and is used for connecting the electrode heating plate assembly with a power supply interface; the insulating layer is arranged outside the tank body, so that people are not injured due to electric leakage during working; the lower part of the tank body is provided with a concentrated waste acid outlet pipe which is connected with a concentrated waste acid conveying pipe.
The electrode heating plate assembly of the electrode heating evaporation tank is made of corrosion-resistant conductive materials, is arranged at the lower part of the tank body, and is provided with a liquid level controller.
The insulating layer of the electrode heating evaporating pot is a coating or a shell assembled by plates, so that electric shock accidents can be effectively prevented.
The electrode heating evaporating pot is suitable for liquid concentration operation processes in the industrial fields of chemical industry, food industry, pharmaceutical industry and the like.
The utility model discloses a theory of operation is: when the hot waste acid reaches the evaporation temperature, a large amount of water in the hot waste acid is evaporated to form water vapor, the water vapor carries liquid drops to pass through a silk screen demister, fine liquid foam carried by the water vapor is separated, and then the water vapor enters an external steam pipe through a steam outlet pipe; a large amount of water in the hot waste acid in the lower part of the tank body is evaporated, the waste acid is increased in concentration, and is settled downwards and flows into the tank bottom along the wall surface, at the moment, the low-concentration waste acid rolls upwards, the high-concentration waste acid containing crystals is settled, and the concentrated waste acid meeting the concentration requirement at the liquid bottom layer is discharged from a bottom concentrated waste acid outlet pipe; the waste acid with high concentration at the bottom of the tank can be precipitated and deposited at the bottom of the tank due to crystallization caused by temperature reduction, and the crystallized waste residue is discharged and treated by a slag discharge outlet pipe at regular time.
The utility model has the advantages that:
1. The energy-saving effect is obvious: by adopting the electrode heating method, the electric-heat conversion efficiency can reach 100%, and the steam obtained by evaporation can be reused.
2. Simple structure, reliable operation: the evaporation and crystallization are integrated, the crystallization of the concentrated solution is not easy to block, no moving part is arranged, and the concentrated solution is made of corrosion-resistant materials, so the device has the characteristics of simple structure, no need of maintenance and the like.
3. The installation is convenient: the tank body is small, light in weight and convenient to install.
Drawings
Fig. 1 is a front view schematically showing the structure of an electrode heating evaporation tank, and fig. 2 is a top view cross-section of the structure.
As shown in fig. 1 and 2, an electrode heating evaporation tank comprises a slag discharge outlet pipe 1, a tank body 2, an electrode heating plate assembly 3, a hot waste acid inlet pipe 4, a manhole 5, a steam outlet pipe 6, a wire mesh demister 7, a cable packaging pipe 8, a wiring sealing groove 9, an insulating layer 10 and a concentrated waste acid outlet pipe 11.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, an electrode heating evaporation tank is composed of a slag discharge outlet pipe 1, a tank body 2, an electrode heating plate assembly 3, a hot waste acid inlet pipe 4, a manhole 5, a steam outlet pipe 6, a wire mesh demister 7, a cable packaging pipe 8, a wiring sealing groove 9, an insulating layer 10 and a concentrated waste acid outlet pipe 11, wherein the bottom of the tank body 2 is provided with the slag discharge outlet pipe 1 which is connected with a slag liquid conveying pipe; 6 electrode heating plate assemblies 3 are arranged at the lower part of the tank body 2 to heat hot waste acid; a hot waste acid inlet pipe 4 is arranged in the middle of the tank body 2 and is connected with a hot waste acid conveying pipe; a manhole 5 is arranged at the upper part of the tank body 2, so that workers can conveniently enter the tank for maintenance; a steam outlet pipe 6 is arranged at the top of the tank body 2 and is connected with a steam pipe; a wire mesh demister 7 is arranged in the upper part of the tank body 2 to separate liquid foam carried by ascending steam flow; the middle part of the tank body 2 is provided with a cable packaging tube 8 which is an external power supply connector; a wiring sealing groove 9 is arranged on one side of the electrode heating plate component 3 and is used for connecting the electrode heating plate component 3 with a power supply interface; the insulating layer 10 is arranged outside the tank body 2 to ensure that people are not injured due to electric leakage during work; the lower part of the tank body 2 is provided with a concentrated waste acid outlet pipe 11 which is connected with a concentrated waste acid conveying pipe.
When the operation is carried out, hot waste acid enters from a hot waste acid inlet pipe 4, when the liquid level reaches the height of the electrode heating plate component 3, the feeding is stopped, then a power supply is started, the electrode plate is electrified, electric energy is directly converted into heat energy by utilizing the self high-resistance characteristic of a liquid medium, the waste acid is heated, the heat efficiency can reach 100%, when the hot waste acid reaches the evaporation temperature, a large amount of water in the hot waste acid is evaporated to form water vapor, the water vapor carries liquid drops to pass through a silk screen demister 7, fine liquid foam carried by the water vapor is separated, and then the water vapor enters an external steam pipe through a steam outlet pipe 6; a large amount of water in the hot waste acid in the lower part of the tank body 2 is evaporated, the waste acid is increased in concentration, is settled downwards and flows into the bottom of the tank along the wall surface, at the moment, the low-concentration waste acid rolls upwards, the high-concentration waste acid containing crystals is settled, and the concentrated waste acid meeting the concentration requirement at the liquid bottom layer is discharged from a concentrated waste acid outlet pipe 11 at the bottom; waste acid with high concentration at the bottom of the tank can be precipitated and precipitated at the bottom of the tank due to temperature reduction, and the crystallized waste slag is discharged and treated by a slag discharge outlet pipe 1 at regular time.
Claims (3)
1. The utility model provides an electrode heating evaporating pot comprises sediment outlet pipe (1), jar body (2), electrode heating plate subassembly (3), hot waste acid import pipe (4), manhole (5), steam outlet pipe (6), silk screen demister (7), cable encapsulation pipe (8), wiring seal groove (9), insulating layer (10), concentrated waste acid outlet pipe (11), characterized by: the bottom of the tank body (2) is provided with a slag discharging outlet pipe (1) which is connected with a slag liquid conveying pipe; an electrode heating plate assembly (3) is arranged at the lower part of the tank body (2) to heat the hot waste acid; a hot waste acid inlet pipe (4) is arranged in the middle of the tank body (2) and is connected with a hot waste acid conveying pipe; a manhole (5) is arranged at the upper part of the tank body (2), so that workers can conveniently enter the tank for maintenance; a steam outlet pipe (6) is arranged at the top of the tank body (2) and is connected with a steam pipe; a wire mesh demister (7) is arranged in the upper part of the tank body (2) to separate liquid foam carried by ascending steam flow; a cable packaging tube (8) is arranged in the middle of the tank body (2) and is an external power supply connector; a wiring sealing groove (9) is formed in one side of the electrode heating plate assembly (3) and is used for connecting the electrode heating plate assembly (3) with a power interface; an insulating layer (10) is arranged outside the tank body (2) to ensure that people are not injured due to electric leakage during work; the lower part of the tank body (2) is provided with a concentrated waste acid outlet pipe (11) which is connected with a concentrated waste acid conveying pipe.
2. An electrode-heated evaporation tank as claimed in claim 1, wherein: the electrode heating plate component (3) is made of corrosion-resistant conductive materials, is arranged at the lower part of the tank body (2), and is necessary to be provided with a liquid level controller.
3. An electrode-heated evaporation tank as claimed in claim 1, wherein: the insulating layer (10) is a coating or a shell assembled by plates, so that electric shock accidents can be effectively prevented.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268934.XU CN209771359U (en) | 2018-12-29 | 2018-12-29 | Electrode heating evaporating pot |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822268934.XU CN209771359U (en) | 2018-12-29 | 2018-12-29 | Electrode heating evaporating pot |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209771359U true CN209771359U (en) | 2019-12-13 |
Family
ID=68791687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822268934.XU Expired - Fee Related CN209771359U (en) | 2018-12-29 | 2018-12-29 | Electrode heating evaporating pot |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209771359U (en) |
-
2018
- 2018-12-29 CN CN201822268934.XU patent/CN209771359U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191213 Termination date: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |