CN210374383U - More reliable polyaluminium chloride drying system - Google Patents
More reliable polyaluminium chloride drying system Download PDFInfo
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- CN210374383U CN210374383U CN201920146452.9U CN201920146452U CN210374383U CN 210374383 U CN210374383 U CN 210374383U CN 201920146452 U CN201920146452 U CN 201920146452U CN 210374383 U CN210374383 U CN 210374383U
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- speed regulator
- digital display
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- polyaluminium chloride
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Abstract
The utility model provides a more reliable polyaluminium chloride drying system, includes drying drum, catch water, pressure sensor, controlling means, cylinder speed regulator, drying drum, catch water pass through the pipe connection, be equipped with pressure sensor on the drying drum admission pipeline, pressure sensor with controlling means connects, controlling means with cylinder speed regulator connects, cylinder speed regulator with drying drum's drive arrangement connects, the utility model discloses it is more energy-conserving, improve product quality, reduce workman working strength, can effectively avoid the influence of steam pressure fluctuation to drying drum stoving operation production.
Description
Technical Field
The utility model relates to a drying system especially relates to a more reliable polyaluminium chloride drying system.
Background
Because polyaluminium chloride belongs to inorganic high-molecular heat-sensitive substances, the polyaluminium chloride can be hydrolyzed and decomposed into alumina and hydrogen chloride gas after being kept in a dryer for too long time, the use efficiency of the polyaluminium chloride is seriously influenced, and the environmental pollution in the production process is caused. At present, more than 85 percent of polyaluminium chloride water treatment agent products are produced by a roller in a drying process, after a high-concentration mother liquor to be dried, concentrated and dehydrated rotates for a circle (about 40-150 seconds) along with the roller, the polyaluminium chloride dried products adhered to the surface of the roller are scraped by a scraper and enter a packaging process, and the drying process is finished, wherein steam is used as a heat source in the drying process.
In the industrial production process, the alumina content, the moisture content and the like of a dried product are changed along with the influence of factors such as steam pressure fluctuation from a boiler, concentration change of a mother solution to be dried and the like, so that the quality of the product is seriously influenced;
the tail gas pressure fluctuates along with the fluctuation of the inlet gas pressure, and the indexes of the moisture, the content and the like of the dried product also fluctuate along with the fluctuation of the inlet gas pressure. When the pressure of the inlet steam is high, the heat of the steam (tail steam) carried by the discharged steam is high, so that the heat of the steam can not be fully utilized in the production process of the roller, and the waste of the steam and the unstable product quality are caused. When the steam inlet pressure is low, the water content of the product is high, the main content of the polyaluminium chloride is reduced, and the returned material is increased. An operator needs to frequently adjust the rotating speed of the roller according to the condition of steam pressure, the labor intensity is high, and meanwhile, the stable product quality cannot be guaranteed.
SUMMERY OF THE UTILITY MODEL
In view of the defect that above-mentioned prior art exists, the utility model provides a more reliable polyaluminium chloride drying system, including drying drum, catch water, pressure sensor, controlling means, cylinder speed regulator, drying drum, catch water pass through the pipe connection, be equipped with pressure sensor on the drying drum admission pipeline, pressure sensor with controlling means connects, controlling means with cylinder speed regulator connects, cylinder speed regulator with drying drum's drive arrangement connects.
Preferably, the pressure sensor is a pressure transmitter, the control device is a digital display regulator, and the roller rotating speed regulator is a frequency converter.
Preferably, the model of the pressure transmitter is BF0803, the model of the digital display regulator is XMA5660FP, and the model of the variable frequency speed regulator is AS 180.
Preferably, the positive electrode of the pressure transmitter BF0803 is connected with the interface 3 of the digital display adjusting instrument XMA5660FP, and the negative electrode of the pressure transmitter BF0803 is connected with the interface 6 of the digital display adjusting instrument XMA5660 FP.
Preferably, the No. 8 interface of the digital display adjusting instrument XMA5660FP and the V of the variable-frequency speed regulator AS180+And the digital display adjusting instrument XMA5660FP is connected through an interface A0.
Compared with the prior art, the utility model discloses following beneficial effect has:
the high-pressure steam inlet pipeline is provided with a pressure sensor, a pressure signal is converted into an electric signal and is sent to a digital display regulator, the digital display regulator sends a corresponding 0-10V signal to a variable frequency speed regulator, the variable frequency speed regulator automatically regulates the output frequency of a frequency converter according to the manually set upper limit and lower limit of pressure, so that the rotating speed of a drying roller motor is regulated, the steam inlet pressure is high and then is accelerated, the steam inlet pressure is low and then is decelerated, and the problems that the product quality is unstable and the steam heat energy cannot be fully utilized due to the pressure fluctuation of the high-pressure steam can be avoided.
Drawings
Fig. 1 is a schematic diagram of the present invention.
The figure is as follows: 1 low-pressure steam, 2 steam-water separators, 3 drying drums, 4 pressure sensors, 5 high-pressure steam, 6 digital display control instruments, 7 drum speed regulators and 8 driving motors.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
As shown in fig. 1, a more reliable polyaluminium chloride drying system comprises a drying drum 3, a steam-water separator 2, a pressure sensor 4, a control device and a variable frequency speed regulator, wherein the drying drum 3 and the steam-water separator 2 are connected through a pipeline, the steam inlet pipeline of the drying drum 3 is provided with the pressure sensor 4, the pressure sensor 4 is connected with the control device, the control device is connected with a drum rotation speed regulator 7, the drum rotation speed regulator 7 is connected with a driving device of the drying drum 3, the pressure sensor 4 is a pressure transmitter, the control device is a digital display regulator, and the drum rotation speed regulator 7 is a frequency converter;
the pressure transmitter is BF0803, the digital display regulator is XMA5660FP, the variable frequency speed regulator is AS180, the positive pole of the pressure transmitter BF0803 is connected with the interface 3 of the digital display regulator XMA5660FP, the negative pole of the pressure transmitter BF0803 is connected with the interface 6 of the digital display regulator XMA5660FP, and the interface 8 of the digital display regulator XMA5660FP is connected with the interface V of the variable frequency speed regulator AS180+The interface connection is realized, the A0 interface connection of the digital display adjusting instrument XMA5660FP is realized, products with different quality requirements are produced, the temperature is generally controlled to be 110-140 ℃, and the steam exhaust pressure of a steam-water separation device is generally controlled to be 1.5-4.0kgf/cm2In the process, a roller variable-frequency speed regulator is generally controlled at 5-75hz, the temperature and pressure parameters set by an automatic control device need to be set by technicians on the basis of field experiments or experiences according to the quality indexes of mother liquor to be dried and the quality requirements of dried finished products to be produced on content, moisture and the like, the number of drying rollers in actual production is 1-n, the drying rollers are connected in parallel, and if heat conduction oil is used as a roller drying heat source, the temperature of heat conduction oil or the flow of the heat conduction oil can be controlled;
the principle of the utility model is that: a pressure sensor 4 is arranged on a steam inlet pipeline of high-pressure steam 5, a pressure signal is converted into an electric signal and is sent to a digital display regulator, the digital display regulator sends a corresponding 0-10V signal to a variable frequency speed regulator, the variable frequency speed regulator automatically regulates the output frequency of a frequency converter according to the manually set upper limit and lower limit of the pressure, so that the rotating speed of a motor of the drying roller 3 is regulated, the steam inlet pressure is high and then is accelerated, the steam inlet pressure is low and then is decelerated, the full utilization of the hot steam by the drying roller 3 is ensured, and the steam pressure of equipment entering and exiting the roller is basically stable. Through testing, the optimal tail gas temperature or pressure is set, and the steam heat energy can be fully utilized (the energy is saved by more than 15 percent); the product quality is stable, the product appearance is uniform and beautiful, the dry return material is greatly reduced, and the labor intensity of the worker operation is obviously reduced.
The above-mentioned embodiments are only preferred embodiments of the present invention, and the scope of the right of the present invention should not be limited thereby, and therefore, modifications, equivalent changes, improvements, etc. made in the claims of the present invention are still included in the scope of the present invention.
Claims (5)
1. A more reliable polyaluminium chloride drying system which is characterized in that: the drying drum and the steam-water separator are connected through a pipeline, the pressure sensor is arranged on a steam inlet pipeline of the drying drum and connected with the control device, the control device is connected with the drum rotating speed regulator, and the drum rotating speed regulator is connected with a driving device of the drying drum.
2. A more reliable polyaluminium chloride drying system as defined in claim 1 wherein: the pressure sensor is a pressure transmitter, the control device is a digital display regulator, and the roller rotating speed regulator is a variable frequency speed regulator.
3. A more reliable polyaluminium chloride drying system as defined in claim 2 wherein: the model of the pressure transmitter is BF0803, the model of the digital display regulator is XMA5660FP, and the model of the variable frequency speed regulator is AS 180.
4. A more reliable polyaluminium chloride drying system as defined in claim 3 wherein: the positive electrode of the pressure transmitter BF0803 is connected with the interface 3 of the digital display adjusting instrument XMA5660FP, and the negative electrode of the pressure transmitter BF0803 is connected with the interface 6 of the digital display adjusting instrument XMA5660 FP.
5. The method of claim 3The more reliable polyaluminium chloride drying system is characterized in that: no. 8 interface of the digital display adjusting instrument XMA5660FP and V of the variable frequency speed regulator AS180+And the digital display adjusting instrument XMA5660FP is connected through an interface A0.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146452.9U CN210374383U (en) | 2019-01-28 | 2019-01-28 | More reliable polyaluminium chloride drying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920146452.9U CN210374383U (en) | 2019-01-28 | 2019-01-28 | More reliable polyaluminium chloride drying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210374383U true CN210374383U (en) | 2020-04-21 |
Family
ID=70245086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920146452.9U Expired - Fee Related CN210374383U (en) | 2019-01-28 | 2019-01-28 | More reliable polyaluminium chloride drying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210374383U (en) |
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2019
- 2019-01-28 CN CN201920146452.9U patent/CN210374383U/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: 20200421 Termination date: 20210128 |
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| CF01 | Termination of patent right due to non-payment of annual fee |