CN208071322U - A kind of dense nitre heater protection against erosion corrosion device - Google Patents
A kind of dense nitre heater protection against erosion corrosion device Download PDFInfo
- Publication number
- CN208071322U CN208071322U CN201820018663.XU CN201820018663U CN208071322U CN 208071322 U CN208071322 U CN 208071322U CN 201820018663 U CN201820018663 U CN 201820018663U CN 208071322 U CN208071322 U CN 208071322U
- Authority
- CN
- China
- Prior art keywords
- heater
- nitre
- isolation board
- tower
- erosion corrosion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The utility model discloses a kind of dense nitre heater protection against erosion corrosion devices, it includes nitre magnesium heater, stripping bottom of tower tremie pipe, isolation board, the nitre magnesium heater tubulation containing having heaters, stripping bottom of tower tremie pipe is mounted on heater cylinder upper end, the isolation board is mounted below stripping bottom of tower blanking nozzle, heater tubulation is protected in isolation board side, heater cylinder is protected in the other side, and the present apparatus is easy to operate, reasonable for structure, high temperature nitre magnesium is effectively prevented directly to the erosion corrosion of heater, improves the service life of heater.
Description
Technical field
The utility model is related to sulfuric acid manufacture field, more particularly to a kind of dense nitre heater protection against erosion corrosion device.
Background technology
Concentrated nitric acid is a kind of important raw material of industry in modern industrial production, in industry such as chemical industry, light industry, metallurgy, national defence
With extensive effect, " magnesium nitric acid process " produces concentrated nitric acid technique and belongs to indirect method, be using magnesium nitrate solution as dehydrating agent, will be dense
Degree produces a concentration of 98.2% production technology, because its flow is short, small investment for the dust technology rectifying of 45%-60% and without dilute
Nitric acid generates, and good product quality is used by most of concentrated nitric acid manufacturing enterprises.
The effect of key equipment nitre magnesium heater is after concentrated nitric acid magnesium absorbs water in tower, from stripping in " magnesium nitric acid process " production
Section bottom flows into heater, and the magnesium nitrate solution into heater is generally a concentration of, containing nitre 1.0% hereinafter, the work of heater
With, first, magnesium nitrate solution boils in heater, steam steam and enter stripping section bottom, heat is provided for dense nitre tower, satisfaction
The requirement of distillation operation second is that magnesium nitrate solution concentration is made to reach 64-68%, and carries out denitration to magnesium nitrate solution, makes to contain nitre
Up to 0.1% or more, but nitre magnesium heater is washed away by the high temperature nitre magnesium containing a small amount of nitric acid to get off from stripping bottom of tower, equipment corrosion
Speed is fast, and service life is short, and maintenance is frequent, and the utilization of capacity is low, influences the efficiency of nitric acid production.
Utility model content
In view of the above-mentioned problems, carried out Improvement, the purpose of this utility model allow stripping bottom of tower gets off containing a small amount of
The high temperature nitre magnesium of nitric acid is washed away less than heater tubulation and heater cylinder, to avoid the erosion to heater, improves heating
The service life of device.
Technical solution used by the utility model is as follows：A kind of dense nitre heater protection against erosion corrosion device, it includes nitre
Magnesium heater, stripping bottom of tower tremie pipe, isolation board.
The nitre magnesium heater tubulation containing having heaters, stripping bottom of tower tremie pipe are mounted on heater cylinder upper end,
The isolation board is mounted below stripping bottom of tower blanking nozzle and is fixed on nitre magnesium heater body, and isolation board side, which is protected, heats
Heater cylinder is protected in device tubulation, the other side, and the present apparatus is easy to operate, reasonable for structure, and it is directly right to be effectively prevented high temperature nitre magnesium
The erosion corrosion of heater improves the service life of heater.
As being further improved for said program：The isolation board is spliced using two blocks of tetrafluoro plates.
As being further improved for said program：The isolation board uses " V " character form structure.
As being further improved for said program：Connection is fixed by bolts between the isolation board and heater.
As being further improved for said program：The isolation board plate face is close to stripping tower tremie pipe nozzle.
Compared with the technology of the existing same industry, the usefulness of the utility model is：The present apparatus is simple in structure, convenient for applying
Work and operation, the isolation board are mounted below stripping bottom of tower blanking nozzle, and heater tubulation, the other side are protected in isolation board side
Heater cylinder is protected, high temperature nitre magnesium is effectively prevented directly to the erosion corrosion of heater, improves the service life of heater,
And the heater time between overhauls(TBO) greatly prolongs, and improves the utilization of capacity；Improve production efficiency.
Description of the drawings
Attached drawing is used for providing further understanding technical solutions of the utility model, and a part for constitution instruction,
With for explaining the technical solution of the utility model, do not constituted to technical solutions of the utility model together with embodiments herein
Limitation.
Fig. 1 is the structural schematic diagram of the utility model；
Wherein, 1, nitre magnesium heater；11, heater tubulation；12 heater cylinders；4, stripping bottom of tower tremie pipe；3, it is isolated
Plate.
Specific implementation mode
The utility model is described further below in conjunction with drawings and examples.
Refering to Figure 1, a kind of dense nitre heater protection against erosion corrosion device of the utility model embodiment, it includes nitre
Magnesium heater 1, stripping bottom of tower tremie pipe 4, isolation board 3,1 tubulation containing having heaters 11 of the nitre magnesium heater, the stripping tower
Beneath expects pipe 4 is mounted on 12 upper end of heater cylinder, and the isolation board 3 is mounted on 4 lower section of stripping bottom of tower tremie pipe and is fixed on
Inside nitre magnesium heater 1, heater tubulation 11 is protected in 3 side of isolation board, and heater cylinder 12, present apparatus operation are protected in the other side
Simply, reasonable for structure, high temperature nitre magnesium is effectively prevented directly to the erosion corrosion of heater, improves the service life of heater.
The dense nitre heater protection against erosion corrosion device in use, concentrated nitric acid magnesium absorb water in stripping tower after and with a small amount of
Concentrated nitric acid flow into nitre magnesium heater 1 from stripping bottom of tower tremie pipe 4, after flowing into nitre magnesium heater 1, the concentrated nitric acid in solution is first
It is first contacted with isolation board 3, avoids concentrated nitric acid from being in direct contact with heater tubulation 11 and heater cylinder 12, prevent high temperature nitre magnesium straight
It connects to causing erosion corrosion inside nitre magnesium heater 1, improves the service life of nitre magnesium heater 1.
Embodiment described above is only the explanation of the utility model, not imposed any restrictions to the utility model, every
According to utility model works principle to any simple modification, change and equivalence change made by above example formula, still
It falls within the protection scope of the present invention.
Claims (5)
1. a kind of dense nitre heater protection against erosion corrosion device, it is characterized in that：It includes nitre magnesium heater, stripping bottom of tower tremie pipe,
Isolation board, nitre magnesium heater tubulation containing having heaters, stripping bottom of tower tremie pipe are mounted on heater cylinder upper end, isolation board installation
Below stripping bottom of tower blanking nozzle, heater tubulation is protected in isolation board side, and heater cylinder is protected in the other side.
2. a kind of dense nitre heater protection against erosion corrosion device according to claim 1, it is characterized in that：Isolation board uses two pieces
Tetrafluoro plate is spliced.
3. a kind of dense nitre heater protection against erosion corrosion device according to claim 1, it is characterized in that：Isolation board uses " V "
Character form structure.
4. a kind of dense nitre heater protection against erosion corrosion device according to claim 1, it is characterized in that：The isolation board with plus
Connection is fixed by bolts between hot device.
5. a kind of dense nitre heater protection against erosion corrosion device according to claim 1, it is characterized in that：The isolation board plate face
It is close to stripping tower tremie pipe nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018663.XU CN208071322U (en) | 2018-01-05 | 2018-01-05 | A kind of dense nitre heater protection against erosion corrosion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820018663.XU CN208071322U (en) | 2018-01-05 | 2018-01-05 | A kind of dense nitre heater protection against erosion corrosion device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208071322U true CN208071322U (en) | 2018-11-09 |
Family
ID=64034817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820018663.XU Active CN208071322U (en) | 2018-01-05 | 2018-01-05 | A kind of dense nitre heater protection against erosion corrosion device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208071322U (en) |
-
2018
- 2018-01-05 CN CN201820018663.XU patent/CN208071322U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109772909B (en) | Anti-oxidation protection device for annealing of copper wire drawing machine | |
| CN207552380U (en) | A kind of environment-friendly type quenching bath of waste heat recovery | |
| CN208071322U (en) | A kind of dense nitre heater protection against erosion corrosion device | |
| CN105084359B (en) | A kind of method that formic acid dehydration industry prepares high-purity CO | |
| CN103172191A (en) | Whole coal chemical industry plant condensate water processing system | |
| CN104307279A (en) | Wet dust removal and waste heat recovery device | |
| CN204952603U (en) | High -efficient graphite falling liquid film absorber | |
| CN105483741A (en) | Temperature control device for acid pickling tank for strip steels | |
| CN204261536U (en) | A kind of hydrogen chloride synthesis circulation of tail gas absorption system | |
| CN203501140U (en) | Waste heat and laundry wastewater utilization device of electric heating steam generator | |
| CN207871583U (en) | Scrubbing tower washings are used as carbon-dioxide regenerating tower top gas cooling water system | |
| CN207149539U (en) | A kind of silicon chip cleaning gaily decorated basket | |
| CN201424388Y (en) | Urea process wastewater recovering device | |
| CN205461093U (en) | Raw materials pre -heating device among dimethyl sulfoxide distillation process | |
| CN203437823U (en) | Circulating device of cooling water for laser cutting machine | |
| CN204125169U (en) | Improve the device of steam utilization in Phosphoric Acid Concentration process | |
| CN203307061U (en) | Sodium silicate draining and filling equipment | |
| CN211084942U (en) | Stainless steel production pickling line graphite heat exchanger device | |
| CN103464903A (en) | Circulating device for laser cutting machine cooling water | |
| CN204034393U (en) | Phosphoric acid system clear water punch plate device | |
| CN204384875U (en) | A kind of novel nitre magnesium well heater | |
| CN203501875U (en) | Waste heat utilization device for casting blank | |
| CN204275542U (en) | A kind of fixed gas recycle device | |
| CN202885589U (en) | Cooling water circulation device | |
| CN103664238A (en) | Technology and system for using thermal energy of condensate water with high efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |