CN207886877U - A kind of on-line cleaning dust recycling demister - Google Patents
A kind of on-line cleaning dust recycling demister Download PDFInfo
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- CN207886877U CN207886877U CN201820056862.XU CN201820056862U CN207886877U CN 207886877 U CN207886877 U CN 207886877U CN 201820056862 U CN201820056862 U CN 201820056862U CN 207886877 U CN207886877 U CN 207886877U
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Abstract
The utility model discloses a kind of on-line cleaning dust to recycle demister, lower resolution element and upper resolution element are controlled by lower resolution element pressure difference control unit and upper resolution element pressure difference control unit respectively, lower resolution element pressure difference control unit controls the first electromagnetism-gas-driving valve, upper resolution element pressure difference control unit controls the second electromagnetism-gas-driving valve, the first shut-off valve and third shut-off valve are equipped with before and after the first electromagnetism-gas-driving valve, the second shut-off valve and the 4th shut-off valve are equipped with before and after the second electromagnetism-gas-driving valve, instrument air controls instrument electromagnetism-gas-driving valve and the second electromagnetism-gas-driving valve by filtering pressure reducing valve, there is pressure display table between the 6th shut-off valve and the 4th shut-off valve, 5th shut-off valve is housed before pressure display table.The utility model realizes the online cleaning showers of dust recycling demister, and spray system unlatching is accurate in time, and resolution element service life can effectively extend, and advantageously reduce production cost, and the field management for improving enterprise is horizontal.
Description
Technical field
The utility model belongs to high-tower granulation dust recycling demisting automation technolo control field, is related to dust recycling demisting
A kind of on-line cleaning dust recycling demister in device.
Background technology
In high-tower granulation dust remanufacture technique, after granulation tower dust recycling demister is located at dust washing device
End, with a large amount of corrosivity urea (ammonium nitrate) drops of the entrainment in supplementary set recovery process gas, recovered material product while, promotees
Into the environmental clean discharge of tail gas.But in system production operational process, urea (ammonium nitrate) solution and nitrogen oxides, ammonia etc. can be formed
Material crystallization is attached to dust recycling demister internals surface, causes airflow obstruction, system pressure difference to increase, seriously affects device
Demisting efficiency, material crystallization will also result in system energy consumption increase, influence device outlet air-introduced machine normal operation.Problem above
Long-term existence, very big harmful effect will certainly be generated to high-tower granulation system, therefore, urgent need finds a kind of technology and comes according to powder
The changing conditions such as pressure, the temperature of dirt recycling demister system operation clean it, to ensure that it is stablized, safety is transported
Row.
In the existing high-tower granulation dust in China recycling demisting process units, the degree of automation of demister generally compared with
It is low, it is manual hand manipulation substantially in production, cannot accomplishes accurate, stability contorting, and execute-in-place is that high-altitude is made
Industry, labor intensity is big and there are some potential safety problemss.Therefore the on-line automaticization cleaning of demister is recycled very to dust
It is necessary.
Invention content
Problems caused by the crystallization of demister demisting internals surface material, this reality are recycled to solve high-tower granulation dust
It is to provide a kind of on-line cleaning dust recycling demister with novel purpose, can efficiently on-line cleaning dust recycling demisting fills
It sets.
The technical solution of the utility model is as follows：A kind of on-line cleaning dust recycling demister, it is characterized in that under including
Resolution element and upper resolution element, lower resolution element and upper resolution element are respectively by lower resolution element pressure difference control unit and upper point
It is controlled from element pressure difference control unit, lower resolution element spray port is equipped at the top of lower resolution element, at the top of upper resolution element
Equipped with upper resolution element top spray mouth, upper resolution element bottom spray mouth, lower resolution element are equipped in upper resolution element bottom
Pressure difference control unit controls the first electromagnetism-gas-driving valve, and upper resolution element pressure difference control unit controls the second electromagnetism-gas-driving valve, the
One electromagnetism-gas-driving valve is front and back to be equipped with the first shut-off valve and third shut-off valve, and the second shut-off valve is equipped with before and after the second electromagnetism-gas-driving valve
With the 4th shut-off valve, instrument air controls instrument electromagnetism-gas-driving valve and the second electromagnetism-gas-driving valve by filtering pressure reducing valve, the 6th
There is pressure display table between shut-off valve and the 4th shut-off valve, the 5th shut-off valve is housed before pressure display table.
The utility model effect
The utility model realizes the online cleaning showers of dust recycling demister, and spray system unlatching is accurate in time,
Spray time does not lag, not overtime, effectively controls spray flow quantity, and cleaning efficiency is high, can effectively ensure that dust recycles demisting
The safe and reliable operation of apparatus system, and improve work efficiency.Realize that the dust recycling of automatic online cleaning showers removes
Mist apparatus system operating condition is more stablized, and resolution element service life can effectively extend, and advantageously reduce production cost, improves
The field management of enterprise is horizontal.
Description of the drawings
Fig. 1 is the structure diagram of the utility model.
In figure：Lower resolution element pressure difference control unit 1, upper resolution element pressure difference control unit 2, the spray of upper resolution element top
Drench mouth 3, upper resolution element bottom spray mouth 4, lower resolution element spray port 5, the first shut-off valve 6, the second shut-off valve 7, the first electricity
Magnetic pneumatic operated valve 8, the second electromagnetism-gas-driving valve 9, third shut-off valve 10, the 4th shut-off valve 11, the 5th shut-off valve 12, the 6th shut-off valve
13, filtering pressure reducing valve 14, spray liquid 15, instrument air 16.
Specific implementation mode
It illustrates referring to Fig.1：The technological parameter requirement that demister system operation is recycled according to dust, to system difference
The pressure etc. of process station is monitored on-line, carries out DCS centralized controls according to its pressure measurement force parameter, and realize cleaning system
Flow monitoring and control, the pipeline of spray cleaning system controlled using electromagnetic type pneumatic operated valve, its electric signal, which is introduced DCS, to be concentrated
Control, and system be arranged hand stop valve, it can be achieved that manually with automatically control free switching.
When the pressure of system is more than process set value, spray cleaning system automatically turns on, and demister is recycled to dust
Internal cleaning showers are carried out, after pressure is less than setting value, spray cleaning system is automatically closed.
In automated cleaning system, lower resolution element pressure difference control unit 1 controls the opening and closing of electromagnetism-gas-driving valve 8, upper to divide
From the opening and closing that element pressure difference control unit 2 controls the second electromagnetism-gas-driving valve 9.
In the process of running, resolution element pressure difference control unit 1 detects that lower resolution element pressure is more than limit to equipment instantly
When definite value, DCS system controls the first electromagnetism-gas-driving valve 8 and opens, and instrument air 16 is the first electromagnetism gas by filtering pressure reducing valve 14
Dynamic valve 8 supplies, and FC indicates that the first electromagnetism-gas-driving valve 8 has flow control function.Spray liquid 15 is followed by the 6th shut-off valve 13
Enter the first electromagnetism-gas-driving valve 8 with third shut-off valve 10, spray liquid after adjusting by the first electromagnetism-gas-driving valve 8 through flowmeter FI and
First shut-off valve 6 enters lower resolution element spray port 5 and carries out cleaning spray to lower resolution element.In the 6th shut-off valve 13 and the 4th
There are pressure display table, PG to indicate that pressure is shown, the 5th shut-off valve 12 is housed before pressure display table between shut-off valve 11.
When upper resolution element pressure difference control unit 2 detects that upper resolution element pressure is more than limit value, DCS system control
Second electromagnetism-gas-driving valve 9 is opened, and instrument air 16 is supplied by filtering pressure reducing valve 14 for the second electromagnetism-gas-driving valve 9, spray liquid 15
Enter the second electromagnetism-gas-driving valve 9 followed by the 6th shut-off valve 13 and the 4th shut-off valve 11, the spray liquid after adjusting is by the second electricity
Magnetic pneumatic operated valve 9 enters upper resolution element bottom spray mouth 4 and upper point of 5 pairs of top spray mouth through flowmeter FI and the second shut-off valve 7
It is cleaned from element.
During to lower resolution element and upper resolution element spray, when being sprayed to certain time, lower resolution element pressure difference
Control unit 1 or upper resolution element pressure difference control unit 2 still transfinite differential pressure value when, lower resolution element pressure difference control unit 1 or
Upper resolution element pressure difference control unit 2 can send out alarm signal, and operating personnel carry out on-site manual processing.
All instrument airs 16, which all have passed through, is filtered under diminished pressure the filtering of valve 14 to ensure the normal fortune of two electromagnetism-gas-driving valves
Row.The first shut-off valve 6 wherein before and after electromagnetism-gas-driving valve, the second shut-off valve 7, third shut-off valve 10, the 4th shut-off valve 11 are hand
Dynamic control, it is ensured that field instrument and pneumatic operated valve are replaced and handled in time when breaking down, and ensure that reliability of operation.
The pressure and flow of spray liquid 15 are in the control range of instrument, and operating personnel can be according to actual conditions tune
Pressure and flow are saved to ensure the spraying effect of separation internals.
Spray port 3 in automatic spraying system, 4,5 to ensure it is clog-free.First shut-off valve 6, the second shut-off valve 7, third
Shut-off valve 10, the 4th shut-off valve 11, the 5th shut-off valve 12, the 6th shut-off valve 13 maintain a normally open state.
Claims (1)
1. a kind of on-line cleaning dust recycles demister, it is characterized in that including lower resolution element and upper resolution element, lower separation
Element and upper resolution element are controlled by lower resolution element pressure difference control unit (1) and upper resolution element pressure difference control unit (2) respectively
System is equipped with lower resolution element spray port (5) at the top of lower resolution element, is equipped at the top of upper resolution element at the top of upper resolution element
Spray port (3) is equipped with upper resolution element bottom spray mouth (4), lower resolution element pressure difference control unit in upper resolution element bottom
(1) the first electromagnetism-gas-driving valve of control (8), upper resolution element pressure difference control unit (2) control the second electromagnetism-gas-driving valve (9), the
One electromagnetism-gas-driving valve (8) is front and back to be equipped with the first shut-off valve (6) and third shut-off valve (10), front and back in the second electromagnetism-gas-driving valve (9)
Equipped with the second shut-off valve (7) and the 4th shut-off valve (11), instrument air (16) controls instrument electromagnetism by filtering pressure reducing valve (14)
Pneumatic operated valve (8) and the second electromagnetism-gas-driving valve (9), have pressure to show between the 6th shut-off valve (13) and the 4th shut-off valve (11)
Table is equipped with the 5th shut-off valve (12) before pressure display table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820056862.XU CN207886877U (en) | 2018-01-12 | 2018-01-12 | A kind of on-line cleaning dust recycling demister |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820056862.XU CN207886877U (en) | 2018-01-12 | 2018-01-12 | A kind of on-line cleaning dust recycling demister |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207886877U true CN207886877U (en) | 2018-09-21 |
Family
ID=63551961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820056862.XU Active CN207886877U (en) | 2018-01-12 | 2018-01-12 | A kind of on-line cleaning dust recycling demister |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207886877U (en) |
-
2018
- 2018-01-12 CN CN201820056862.XU patent/CN207886877U/en active Active
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