CN205055632U - Lime stone gypsum desulfurization defroster blade intelligence belt cleaning device - Google Patents
Lime stone gypsum desulfurization defroster blade intelligence belt cleaning device Download PDFInfo
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- CN205055632U CN205055632U CN201520669309.XU CN201520669309U CN205055632U CN 205055632 U CN205055632 U CN 205055632U CN 201520669309 U CN201520669309 U CN 201520669309U CN 205055632 U CN205055632 U CN 205055632U
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- demister
- scavenge pipe
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Abstract
The utility model relates to a lime stone gypsum desulfurization defroster blade intelligence belt cleaning device for lime stone gypsum desulfurization process. The utility model discloses a defroster scavenging pump and central processing system, defroster scavenging pump electrical connection is in central processing system, the defroster scavenging pump has the defroster to rinse the nest of tubes through a water piping connection, defroster scavenge pipe matched stack closes and is equipped with at least two sets of pressure sensor, the defroster rinses the nest of tubes through rinsing pipe valve electrical connection in central processing system, pressure sensor electrical connection is in central processing system, defroster scavenge pipe matched stack closes and is equipped with at least a set of humidity transducer, humidity transducer electrical connection is in central processing system. For preventing the scale deposit of defroster blade, when the data value of humidity transducer collection was less than predetermined humidity lower limit value, accessible central control system started the defroster scavenging pump and the defroster washing nest of tubes, rinses the defroster blade.
Description
Technical field
The utility model relates to a kind of lime stone desulfurization of gypsum demister blade intelligence cleaning device, for lime stone desulfurization of gypsum technique.
Background technology
In lime stone desulfurization of gypsum, desulfurizing tower is in running, and easily produce " mist " that particle diameter is 10 microns ~ 60 microns, " mist " not only containing moisture, is also dissolved with sulfuric acid, sulfate, sulfur dioxide etc.Therefore, lime stone desulfurization of gypsum technique proposes the requirement of demist to desulphurization plant, cleaned gas wanted demist before leaving absorption tower.The Main Function of demister is separated the drop that in lime stone desulfurization of gypsum tower, gas is carried secretly, to ensure mass-transfer efficiency, reduces valuable loss of material and the quality improving Exhaust Gas.Its operation principle is when the gas containing mist flows through demister with certain speed, due to the inertial impaction effect of gas, mist and demister blade corrugated sheet collide and by the drop gathered arrive greatly the gravity himself produced exceed making a concerted effort of the climbing power of gas and surface tension of liquid time, drop just gets off from demister blade corrugated sheet is separated on the surface, droplet continues to collect formation current, because of the effect of gravity, fall in slurry pool, achieve gas-liquid separation, make the flue gas flowing through demister reach demist and require rear discharge.Because the gas flowing through demister blade has higher temperature, easily make demister blade corrugated sheet to occur dry district, thus produce incrustation and deposit; Simultaneously total containing superfluous absorbent (CaCO in desulfurizing tower loop slurry
3), when flue gas carry secretly this slurry drop be trapped in demister blade corrugated sheet is not removed in time time, can continue to absorb in flue gas the SO do not eliminated
2, there is the reflection generating calcium sulfite and calcium sulfate, demister blade separate out precipitation and forms dirt.Once fouling starts, demister performance can be had a strong impact on, if fouling is serious, demister finally may be caused to block and cave in, thus occur serious environmental accident, so good defroster cleaning apparatus is the primary condition ensureing that demister well runs.At present, known lime stone desulfurization of gypsum demister cleaning way has manual type, Fixed Time Interval mode and pressure reduction control mode.Manual type and Fixed Time Interval mode is adopted to be all based on experience, cannot according to the demister blade real work situation be enclosed in tower through Row sum-equal matrix, often easily there is the situation of the inadequate or undue cleaning of cleaning, finally cause demister blade construction or Desulfurization tower slurry liquid level to raise, thus cause serious process environments problem.Its principle of mode adopting pressure reduction to control is the flue gas pressures that the pressure sensor being positioned at demister blade levels is flowed through by measurement, transfers data to PLC system, calculates pressure difference and judge to perform corresponding operating by PLC system.If pressure reduction exceedes certain value, think and likely occur demister blade blockage, so open demister pump high-pressure wash demister blade, although this kind of mode has had many improvement compared with the above two, but its prerequisite is necessary pressure reduction, probably formed in the fouling of blade place in the process that there is pressure reduction, also there is the situations such as high pressure washing is insufficient simultaneously, therefore still likely block demister.Find through inventor's experimental study, after run duration keeps the fouling of demister blade surface percentage of wetted soil, timely high pressure washing is even more important.
Utility model content
Technical problem to be solved in the utility model is: in order to overcome manual type, the cleaning of Fixed Time Interval mode cleans not or too, and the deficiency that the washing time of pressure reduction control mode is delayed, the utility model provides a kind of lime stone desulfurization of gypsum demister blade intelligence cleaning device, this device can simultaneously monitoring of environmental pressure, ambient humidity situation, then automatically start demister scavenging pump cleaning demister blade according to the operating mode of demister blade, effectively prevent demister from blocking.
The technical scheme adopted for solving the problems of the technologies described above the utility model is: lime stone desulfurization of gypsum demister blade intelligence cleaning device, comprise demister scavenging pump and central processing system, demister scavenging pump is electrically connected in central processing system, demister scavenging pump is connected with demister scavenge pipe group by outlet pipe, the assembly of demister scavenge pipe is closed and is provided with at least two group pressure sensors, demister scavenge pipe group is electrically connected in central processing system by cleaning pipe valve, pressure sensor is electrically connected in central processing system, the assembly of demister scavenge pipe is closed and is provided with at least one group of humidity sensor, humidity sensor is electrically connected in central processing system.For preventing demister blade fouling, when the data value that humidity sensor gathers is lower than the humidity lower limit preset, starts demister scavenging pump and demister scavenge pipe group by central control system, demister blade is cleaned.
Further: the assembly of demister scavenge pipe is closed and is provided with at least one group of temperature sensor, and temperature sensor is electrically connected in central processing system.For preventing demister blade Yin Gaowen to be out of shape, when the data value that temperature sensor gathers is higher than the temperature upper limit preset, starts demister scavenging pump and demister scavenge pipe group by central control system, demister blade is cleaned.
Demister scavenge pipe group, pressure sensor, humidity sensor, temperature sensor quantity are all arranged according to demister blade quantity, if demister blade is N Rotating fields, in the demister blade of every layer, 1 group of humidity sensor, 1 group of temperature sensor is arranged during enforcement, 1 group of pressure sensor is arranged respectively above and below demister blade, 1 group of pressure sensor can be shared between adjacent two-layer demister blade, thus pressure sensor quantity be N+1 group, humidity sensor quantity is N group, temperature sensor quantity is N group.And for demister scavenge pipe group, according to demister blade operating mode, usually at arranged beneath 1 group of demister scavenge pipe of the demister blade of most top layer, the demister blade of remainder layer then arranges 1 group of demister scavenge pipe with below above it respectively, thus the quantity of demister scavenge pipe group is 2N-1 group.During enforcement, demister blade environmental pressure, ambient humidity, the ambient temperature conditions of every layer can be monitored, then automatically start demister scavenging pump according to operating mode, complete the cleaning of demister blade by correspondingly demister scavenge pipe group, effectively prevent demister from blocking.
Consider except fog effect and cost of manufacture, demister blade is generally double-decker, comprise upper strata demister, lower floor's demister, correspondingly, demister scavenge pipe group is 3 groups, comprise scavenge pipe under the demister of upper strata, scavenge pipe on lower floor's demister, scavenge pipe on lower floor's demister, pressure sensor quantity is 3 groups, comprise upper strata pressure sensor, middle level pressure sensor, laminated force snesor, humidity sensor quantity is 2 groups, comprise upper strata humidity sensor, lower floor's humidity sensor, temperature sensor quantity is 2 groups, comprise upper strata temperature sensor, lower floor's temperature sensor.
For demister scavenge pipe group, under the demister of upper strata, on scavenge pipe, lower floor's demister, on scavenge pipe, lower floor's demister, scavenge pipe is the many scavenge pipe structures be arranged in parallel, on every root scavenge pipe, interval arranges multiple nozzle, and every root scavenge pipe is equipped with 1 cleaning pipe valve.During enforcement, the installed position of every root scavenge pipe is all furnished with corresponding pressure sensor, humidity sensor, temperature sensor, Real-Time Monitoring environmental pressure, ambient humidity, ambient temperature conditions, then independently control the work of every root scavenge pipe according to operating mode, better control the cleaning of demister blade.
Improve as to the utility model, the cooperation of demister scavenging pump is provided with frequency converter, and frequency converter is electrically connected in central processing system.Can according to the discharge pressure of regulating working conditions demister scavenging pump during enforcement.
In the utility model, the central processing unit of central processing system is preferably dsp controller.
In order to improve general convenience of the present utility model, central processing system is provided with input keyboard for arranging parameters, for checking the display floater of every terms of information.
In order to improve security of the present utility model, central processing system is provided with alarm.Under aptitude manner, if after opening demister scavenging pump and respective valves, corresponding data can not get improving then startup alarm for a long time and reports to the police, and prompting post personnel carry out manual cleaning.
The beneficial effects of the utility model are: can according to actual conditions such as temperature, pressure and the humidity in lime stone desulfurization of gypsum tower, the cleaning way of dynamic conditioning demister blade so that demister blade obtains abundant suitable cleaning, thus effectively can prevent the environmental accident that causes because the blocking of demister blade construction.The utility model adopts modular design, and structure is simple, easy to use, highly versatile.
Accompanying drawing explanation
Fig. 1 is mounting structure schematic diagram of the present utility model;
Fig. 2 is the A place enlarged diagram of Fig. 1;
Fig. 3 is the schematic top plan view of demister scavenge pipe group;
Fig. 4 is electric drawings schematic diagram of the present utility model.
Parts in figure, position and numbering: 1-desulfurizing tower, 2-desulfurizing tower pedestal, 3-smoke inlet, 4-upper strata demister, 5-lower floor demister, scavenge pipe under the demister of 6-upper strata, scavenge pipe on 7-lower floor demister, scavenge pipe under 8-lower floor demister, cleaning valve under the demister of 9-upper strata, cleaning valve on 10-lower floor demister, cleaning valve under 11-lower floor demister, 12-demister cleaning pump valve, 13-demister scavenging pump, 14-circulation pump valve, 15-circulating pump, 16-technique water tank, 17-cyclic oxidation pond, 18-circulated sprinkling pipe, 19-upper strata pressure sensor, 20-middle level pressure sensor, 21-laminated force snesor, 22-upper strata temperature sensor, 23-lower floor temperature sensor, 24-upper strata humidity sensor, 25-lower floor humidity sensor, 26-input keyboard, 27-display floater, 28-central processing system, 29-central processing unit, 30-serial line interface, 31-alarm, 32-input/output signal terminal block, 33-frequency converter, 34-demister pump start stop switch, 35-intelligence/artificial change-over switch, 36-artificial start and stop demister switch pump, 37-system emergency stop switch, cleaning valve switch under the demister of 38-upper strata, 39-lower floor demister cleans threshold switch, cleaning valve switch under 40-lower floor demister, 41-power supply N line, 42-power supply L line, 43-4 ~ 20mA run signal, 50-cleans pipe valve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As shown in Figure 1 to 4, the utility model comprises demister scavenging pump 13 and central processing system 28, demister scavenging pump 13 is electrically connected in central processing system 28, demister scavenging pump 13 is connected with demister scavenge pipe group by outlet pipe, the assembly of demister scavenge pipe is closed and is provided with at least two group pressure sensors, demister scavenge pipe group is electrically connected in central processing system 28 by cleaning pipe valve 50, pressure sensor is electrically connected in central processing system 28, the assembly of demister scavenge pipe is closed and is provided with at least one group of humidity sensor, humidity sensor is electrically connected in central processing system 28.For preventing demister blade fouling, when the data value that humidity sensor gathers is lower than the humidity lower limit preset, starts demister scavenging pump 13 and demister scavenge pipe group by central control system 28, demister blade is cleaned.Humidity value through cleaning moistening demister blade arid region rises to default safe humidity value, then stop the moistening corresponding demister blade-section of cleaning, so disconnection is corresponding clean pipe valve 50, closes demister scavenging pump 13.
Preferably, the assembly of demister scavenge pipe is closed and is provided with at least one group of temperature sensor, and temperature sensor is electrically connected in central processing system 28.For preventing demister blade Yin Gaowen to be out of shape, when the data value that temperature sensor gathers is higher than the temperature upper limit preset, starts demister scavenging pump 13 and demister scavenge pipe group by central control system 28, demister blade is cleaned.Demister leaf temperature value through the overtemperature part of cleaning drops to default safe temperature value, then stop the moistening corresponding demister blade-section of cleaning, so disconnect corresponding cleaning pipe valve 50, closes demister scavenging pump 13.
Demister scavenge pipe group, pressure sensor, humidity sensor, temperature sensor quantity are all arranged according to demister blade quantity, if demister blade is N Rotating fields, in the demister blade of every layer, 1 group of humidity sensor, 1 group of temperature sensor is arranged during enforcement, 1 group of pressure sensor is arranged respectively above and below demister blade, 1 group of pressure sensor can be shared between adjacent two-layer demister blade, thus pressure sensor quantity be N+1 group, humidity sensor quantity is N group, temperature sensor quantity is N group.And for demister scavenge pipe group, according to demister blade operating mode, usually at arranged beneath 1 group of demister scavenge pipe of the demister blade of most top layer, the demister blade of remainder layer then arranges 1 group of demister scavenge pipe with below above it respectively, thus the quantity of demister scavenge pipe group is 2N-1 group.During enforcement, demister blade environmental pressure, ambient humidity, the ambient temperature conditions of every layer can be monitored, then automatically start demister scavenging pump according to operating mode, complete the cleaning of demister blade by correspondingly demister scavenge pipe group, effectively prevent demister from blocking.
Consider except fog effect and cost of manufacture, demister blade is generally double-decker, comprise upper strata demister 4, lower floor's demister 5, correspondingly, demister scavenge pipe group is 3 groups, comprise scavenge pipe 6 under the demister of upper strata, scavenge pipe 7 on lower floor's demister, scavenge pipe 8 on lower floor's demister, pressure sensor quantity is 3 groups, comprise upper strata pressure sensor 19, middle level pressure sensor 20, laminated force snesor 21, humidity sensor quantity is 2 groups, comprise upper strata humidity sensor 24, lower floor's humidity sensor 25, temperature sensor quantity is 2 groups, comprise upper strata temperature sensor 22, lower floor's temperature sensor 23.
Also be subject to the drop that upper strata demister 4 drips because lower floor's demister 5 has both received drop that ascending air brings simultaneously, adopt the mode of two spray when therefore cleaning lower floor's demister 5, realize cleaning by scavenge pipe 8 on scavenge pipe 7, lower floor's demister on respective valves interval startup lower floor demister.
For demister scavenge pipe group, under the demister of upper strata, on scavenge pipe 6, lower floor's demister, on scavenge pipe 7, lower floor's demister, scavenge pipe 8 is the many scavenge pipe structures be arranged in parallel, on every root scavenge pipe, interval arranges multiple nozzle, and every root scavenge pipe is equipped with 1 cleaning pipe valve 50.During enforcement, the installed position of every root scavenge pipe is all furnished with corresponding pressure sensor, humidity sensor, temperature sensor, Real-Time Monitoring environmental pressure, ambient humidity, ambient temperature conditions, then independently control the work of every root scavenge pipe according to operating mode, better control the cleaning of demister blade.
Improve as to the utility model, demister scavenging pump 13 cooperation is provided with frequency converter 33, and frequency converter 33 is electrically connected in central processing system 28.According to the discharge pressure of regulating working conditions demister scavenging pump 13, according to the discharge pressure difference of demister scavenging pump 13, two kinds of control models can simply can be set to, low-pressure washing pattern and high pressure washing pattern during enforcement.Concrete control mode is as follows: when the data value that temperature sensor gathers is higher than the temperature upper limit preset, for preventing demister blade Yin Gaowen to be out of shape, and opens demister scavenging pump 13 low-pressure washing pattern; The data value gathered when temperature sensor is prescribed a time limit higher than upper in the temperature preset, and opens demister scavenging pump 13 high pressure washing pattern.When the data value that humidity sensor gathers is lower than the humidity lower limit preset, for preventing demister blade fouling, open demister scavenging pump 13 low-pressure washing pattern; The data value that humidity sensor gathers, lower than under the humidity preset during lower limit, opens demister scavenging pump 13 high pressure washing pattern.When the difference of the data value that the pressure sensor being positioned at demister blade upper and lower gathers is higher than the pressure differential higher limit preset, open demister scavenging pump 13 low-pressure washing pattern, when the difference of the data value of two-way pressure sensor collection is higher than in limited time upper in the pressure differential preset, open demister scavenging pump 13 high pressure washing pattern.In running, demister scavenging pump 13 high pressure washing mode prioritization level is higher than low-pressure washing pattern, as long as the data of i.e. three class sensor one class sensor collections reach high pressure washing pattern and namely adopt high pressure washing pattern, the low-pressure washing pattern that priority treatment high pressure washing pattern interruptible price are processing, reprocessing low-pressure washing pattern after processing high pressure washing pattern.When priority is equal, in chronological sequence process, priority at the same level not interruptible price.According to the difference of field condition, the unlatching of the utility model to demister scavenging pump 13 has two kinds of access waies.Be the situation not using frequency converter 33, now pump is opened and is full load operation, only needs the upper limit or the lower limit of default relevant parameter in such cases.Another kind controls frequency converter 33 by curtage signal and then controls demister scavenging pump 13, and this kind of situation needs the upper limit of default relevant parameter, the upper limit and lower limit, lower lower limit.
In the utility model, the central processing unit 29 of central processing system 28 is preferably dsp controller.
In order to improve general convenience of the present utility model, central processing system 28 is provided with input keyboard 26 for arranging parameters, for checking the display floater 27 of every terms of information.In addition, be also provided with for carrying out mutual serial line interface 30 by computer software to central processing system 28, the effect of serial line interface 30 be can by computer software rapid, high volume parameters, check parameter, historical information and warning message.
In order to improve security of the present utility model, central processing system is provided with alarm 31.Under aptitude manner, if after opening demister scavenging pump 13 and respective valves, corresponding data can not get improving then startup alarm 31 for a long time and reports to the police, and prompting post personnel carry out manual cleaning.
In order to improve the interactivity of the utility model and desulfurization PLC control system, central processing system is provided with a large amount of input/output signal terminal block 32, comprises intelligence/artificial change-over switch 35, artificial start and stop demister switch pump 36, system emergency stop switch 37, power supply N line 41, power supply L line 42 and 4 ~ 20mA run signal 43.When needs manually clean upper strata demister 4, lower floor's demister 5, first by intelligence/artificial change-over switch 35 is transformed into manually, then manually closed start and stop demister switch pump 36 opens demister scavenging pump 13, now can control the output frequency of frequency converter 33 by the input value of control 4 ~ 20mA run signal 43 and then control the rotating speed of demister scavenging pump 13, thus reach the hydraulic pressure that controls in demister pipeline and then control the object of rinse mode of upper strata demister 4, lower floor's demister 5.By the gauge tap signal access field operation box or PLC control system that cleaning valve switch 38, lower floor's demister under the demister of upper strata clean cleaning valve switch 40 under threshold switch 39, lower floor's demister just can be operated each demister cleaning valve.In addition, urgency can be carried out by control system emergency stop switch 37 pairs of systems when being in an emergency and stop, prevent the state of affairs from worsening.
Claims (10)
1. lime stone desulfurization of gypsum demister blade intelligence cleaning device, comprise demister scavenging pump (13) and central processing system (28), demister scavenging pump (13) is electrically connected in central processing system (28), demister scavenging pump (13) is connected with demister scavenge pipe group by outlet pipe, the assembly of demister scavenge pipe is closed and is provided with at least two group pressure sensors, demister scavenge pipe group is electrically connected in central processing system (28) by cleaning pipe valve (50), pressure sensor is electrically connected in central processing system (28), it is characterized in that: the assembly of demister scavenge pipe is closed and is provided with at least one group of humidity sensor, humidity sensor is electrically connected in central processing system (28).
2. lime stone desulfurization of gypsum demister blade intelligence cleaning device as claimed in claim 1, is characterized in that: the assembly of demister scavenge pipe is closed and is provided with at least one group of temperature sensor, and temperature sensor is electrically connected in central processing system (28).
3. lime stone desulfurization of gypsum demister blade intelligence cleaning device as claimed in claim 1, it is characterized in that: demister scavenge pipe group to comprise on scavenge pipe (6) under the demister of upper strata, lower floor's demister scavenge pipe (8) on scavenge pipe (7), lower floor's demister, pressure sensor quantity is 3 groups, comprise upper strata pressure sensor (19), middle level pressure sensor (20), laminated force snesor (21), humidity sensor quantity is 2 groups, comprises upper strata humidity sensor (24), lower floor's humidity sensor (25).
4. lime stone desulfurization of gypsum demister blade intelligence cleaning device as claimed in claim 2, it is characterized in that: demister scavenge pipe group comprises scavenge pipe (6) under the demister of upper strata, scavenge pipe (7) on lower floor's demister, scavenge pipe (8) on lower floor's demister, pressure sensor quantity is 3 groups, comprise upper strata pressure sensor (19), middle level pressure sensor (20), laminated force snesor (21), humidity sensor quantity is 2 groups, comprise upper strata humidity sensor (24), lower floor's humidity sensor (25), temperature sensor quantity is 2 groups, comprise upper strata temperature sensor (22), lower floor's temperature sensor (23).
5. lime stone desulfurization of gypsum demister blade intelligence cleaning device as claimed in claim 3, it is characterized in that: under the demister of upper strata, on scavenge pipe (6), lower floor's demister, on scavenge pipe (7), lower floor's demister, scavenge pipe (8) is the many scavenge pipe structures be arranged in parallel, on every root scavenge pipe, interval arranges multiple nozzle, every root scavenge pipe is equipped with 1 cleaning pipe valve (50), and every root scavenge pipe cooperation is provided with corresponding pressure sensor, humidity sensor.
6. lime stone desulfurization of gypsum demister blade intelligence cleaning device as claimed in claim 4, it is characterized in that: under the demister of upper strata, on scavenge pipe (6), lower floor's demister, on scavenge pipe (7), lower floor's demister, scavenge pipe (8) is the many scavenge pipe structures be arranged in parallel, on every root scavenge pipe, interval arranges multiple nozzle, every root scavenge pipe is equipped with 1 cleaning pipe valve (50), and every root scavenge pipe cooperation is provided with corresponding pressure sensor, humidity sensor, temperature sensor.
7. the lime stone desulfurization of gypsum demister blade intelligence cleaning device according to any one of claim 1 ~ 6, it is characterized in that: demister scavenging pump (13) cooperation is provided with frequency converter (33), and frequency converter (33) is electrically connected in central processing system (28).
8. the lime stone desulfurization of gypsum demister blade intelligence cleaning device according to any one of claim 1 ~ 6, is characterized in that: the central processing unit (29) of central processing system (28) is dsp controller.
9. the lime stone desulfurization of gypsum demister blade intelligence cleaning device according to any one of claim 1 ~ 6, is characterized in that: central processing system (28) is provided with input keyboard (26), display floater (27).
10. the lime stone desulfurization of gypsum demister blade intelligence cleaning device according to any one of claim 1 ~ 6, is characterized in that: central processing system (28) is provided with alarm (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669309.XU CN205055632U (en) | 2015-08-31 | 2015-08-31 | Lime stone gypsum desulfurization defroster blade intelligence belt cleaning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669309.XU CN205055632U (en) | 2015-08-31 | 2015-08-31 | Lime stone gypsum desulfurization defroster blade intelligence belt cleaning device |
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| Publication Number | Publication Date |
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| CN205055632U true CN205055632U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520669309.XU Expired - Fee Related CN205055632U (en) | 2015-08-31 | 2015-08-31 | Lime stone gypsum desulfurization defroster blade intelligence belt cleaning device |
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| CN (1) | CN205055632U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302999A (en) * | 2019-07-03 | 2019-10-08 | 金义凯 | Demister Efficiente magnetizing cleaning device in a kind of desulfurizing tower |
-
2015
- 2015-08-31 CN CN201520669309.XU patent/CN205055632U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110302999A (en) * | 2019-07-03 | 2019-10-08 | 金义凯 | Demister Efficiente magnetizing cleaning device in a kind of desulfurizing tower |
| CN110302999B (en) * | 2019-07-03 | 2021-02-05 | 江苏庆峰工程集团有限公司 | High-efficient magnetization belt cleaning device of defroster in desulfurizing tower |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20200831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |