CN201569908U - Automatic control system for water-overflow precision-classified fine silicon powder - Google Patents
Automatic control system for water-overflow precision-classified fine silicon powder Download PDFInfo
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- CN201569908U CN201569908U CN2009202321533U CN200920232153U CN201569908U CN 201569908 U CN201569908 U CN 201569908U CN 2009202321533 U CN2009202321533 U CN 2009202321533U CN 200920232153 U CN200920232153 U CN 200920232153U CN 201569908 U CN201569908 U CN 201569908U
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- silicon powder
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Abstract
The utility model relates to an automatic control system for water-overflow precision-classified fine silicon powder. The automatic control system is characterized in that the automatic control system comprises an overflow system and a control system; wherein the overflow system comprises an overflow tank and a water supply pipe; the water supply pipe is provided with a gate valve, an electric control valve, a water supply pump, an electromagnetic flowmeter and a pressure transmitter; the control system comprises a programmable logic controller PLC, an industrial control computer and a frequency converter; the programmable logic controller PLC is respectively connected with the industrial control computer, the frequency converter, the electromagnetic flowmeter, the pressure transmitter and the electric control valve, and the frequency converter is connected with the water supply pipe. The programmable logic controller PLC is used as the control core, the entire production process does not need to be operated manually in the field, thereby realizing automatic regulation of the water-overflow precision classification; besides, with the support of the programmable logic controller PLC, the electromagnetic flowmeter and the electric control valve realize fine flow adjustment, and the flow can traverse all the flow points, thereby improving the output capacity of products.
Description
Technical field
The utility model relates to a kind of micro mist grain size segregation hydraulic grading device, particularly a kind of automatic control system of water overflow fine grading silicon powder.
Background technology
Along with of the widespread use of silit SIC material in industries such as engineering ceramics, grinding materials and grinding tool, fire resistive material, chemical industry, electric power, smelting, castings.The application of particularly modern silicon carbide micro-powder in the IT industry, performance requirements such as the granularity of silit, shape, hardness, structure are more and more wanted, simultaneously because users at home and abroad is also come refinement more to the granularity requirements of silicon carbide micro-powder, the manually operated hydraulic classiciation operation that tradition adopts because can not guarantee hydraulic pressure and flow degree of regulation, cause the stability of production and consistance relatively poor.
The silicon powder product of grinding materials and grinding tool industry is very high for effectiveness of classification height and coherence request, and its effectiveness of classification is direct determines grade, the class of silicon powder product, and price differs greatly, and the stability of product quality is related to the competitiveness of product in market.With the silicon powder product is example, and after the smart classification of silicon powder process waterpower, its international market price is about 10 times of ordinary silicon micro mist, has improved value-added content of product greatly.
What current micro mist fine grading operation usually adopted is the mode of water overflow size separation, and cardinal principle is by regulating the flow of inlet water of weir tank, realizes screening to the Different Silicon micro powder granule by the buoyancy of from bottom to top spill stream, reaches the purpose of fine grading.Requirement for current buoyancy under this technology is very high, and wherein water flow velocity is the major influence factors of current buoyancy, and the stability of current and the control accuracy of water flow velocity have determined the product quality of overflow size separation.Existing water overflow size separation equipment mostly adopts the mode of manual shift in the present industry, and the following problem that exists:
First, low because of the manually-operated precision, influenced greatly by experience, mood, muscle power etc., usually use glass rotameter to cooperate the adjusting of manual modulation valve realization at present to weir tank water inlet flow, and the glass rotameter precision is lower, the adjusting of manual modulation valve simultaneously more is easy to generate underfed or overshoot, be difficult to reach accurate adjusting, so effectiveness of classification is difficult to guarantee to flow.
The second, it can not be regulated flow value timely, also is difficult to simultaneously flow is remained within the scope of requirement.To be fixed on certain flow value of a specified duration excessively when flow, just causes layering, deposition easily, and then cause raw material to harden, and increased the time of overflow sorting greatly, increased energy consumption greatly, causes inefficiency.
The 3rd, water supply line connects a lot of weir tanks usually, and the variation of the work number of weir tank tends to cause the variation of feed pipe pressure, and the adjusting difficulty of flow is strengthened, the easier adjusting error that causes flow.
Summary of the invention
Technical problem to be solved in the utility model is at the deficiencies in the prior art, and the automatic control system of the water overflow fine grading silicon powder of a kind of rational in infrastructure, high-level efficiency, high rate is provided.
Technical problem to be solved in the utility model is to realize by following technical scheme.The utility model is a kind of automatic control system of water overflow fine grading silicon powder, is characterized in that it comprises overflow system and control system; Described overflow system comprises weir tank and supply channel; Described supply channel is provided with gate valve, electric control valve, water supply pump, electromagnetic flowmeter and pressure unit; Described control system comprises programmable controller PLC, industrial control computer and frequency converter, programmable controller PLC is connected with industrial control computer, frequency converter, electromagnetic flowmeter, pressure unit and electric control valve respectively, and described frequency converter is connected with water supply pump.
Technical problem to be solved in the utility model can also further realize by following technical scheme.The automatic control system of above-described water overflow fine grading silicon powder is characterized in, also is connected with the water supply branch road on the described supply channel, and described water supply branch road is provided with valve.
Technical problem to be solved in the utility model can also further realize by following technical scheme.The automatic control system of above-described water overflow fine grading silicon powder is characterized in that programmable controller PLC comprises CPU module, analog quantity load module, analog output module, digital quantity output module and communication module; Described industrial control computer is connected by the communication module of communication interface card with programmable controller PLC.
Technical problem to be solved in the utility model can also further realize by following technical scheme.The automatic control system of above-described water overflow fine grading silicon powder is characterized in that the output terminal of the digital quantity output module of described programmable controller PLC also is connected with alarm lamp.
Technical problem to be solved in the utility model can also further realize by following technical scheme.The automatic control system of above-described water overflow fine grading silicon powder is characterized in that described electromagnetic flowmeter is installed on weir tank inlet duct place.
The utility model water overflow fine grading automatic control system collection weir tank feed pipe is pressed and the on-line automatic measurement of weir tank flow of inlet water and be controlled in one in real time, can not only according to the feed pipe of real-time collection press with set that the pipe pressure difference be regulated (the control water pump) automatically thus the frequency converter frequency of operation supplies water by setting the existing dynamic constant pressure of pipe compacting, and can be according to weir tank flow of inlet water of gathering in real time and the deviation of setting the feed water flow value, automatic meticulous adjusting motor-operated control valve aperture, thus realize control automatically by setting flow of inlet water.
Industrial control computer is used to be provided with the duty of the running parameter of programmable controller PLC and the filling of monitoring overflow in real time.Described electromagnetic flowmeter is used to detect overflow and pours into the saliva flow, and sends into the analog quantity load module by current signal and handle for programmable controller PLC; Thereby described electric control valve is used for the size of valve opening Control Flow in the controlling plumbing fixtures.Described pressure unit is placed in the supply channel, the described analog quantity load module of its output termination, being used for the hydraulic pressure size conversion is that current signal is sent into the analog quantity load module for the CPU resume module, described analog output module connects the frequency converter of water supply pump, is used for output power and then control inflow according to the result control water supply pump of CPU module.
The utility model with programmable controller PLC as core controller, by the pressure in the pressure unit detection supply channel, and send into programmable controller PLC and handle, by by analog output module output quantity being delivered to the water supply pump frequency converter after the CPU resume module in the programmable controller PLC, regulate water supply pump Frequency Converter Control water pump automatically the interior hydraulic pressure of water supply line is remained near the optimum condition state.Motorized valve is regulated under the control of programmable controller PLC, can change the minimum aperture of valve event; Further detect weir tank inlet water flow, send into programmable controller PLC, monitor the aperture of discharge and by-pass valve control in real time by electromagnetic flowmeter.The monitoring software of supervisory control comuter adopts configuration software, and relevant technological parameter, index can be set, and realizes generating in real time, functions such as historical data curve and form.The utility model can also be realized manual control part simultaneously, when weir tank works in manual state of a control, observes electromagnetic flowmeter by the workman, adjusts the manual adjustments valve and realizes control.
The beneficial effects of the utility model are:
1, serve as the control core with programmable controller PLC, whole process of production need not artificial execute-in-place, realized the automatic adjusting of water overflow fine grading, and electromagnetic flowmeter and electric control valve all have higher precision, and under the support of programmable controller PLC, realize the fine setting of flow, travel through each flow point, improved the output capacity of product.
2, monitor in real time by supervisory control comuter, can revise the running parameter of water overflow fine grading at any time, improved convenience.Simultaneously, the utility model can also pass through network savvy, can articulate many programmable controller PLC under same supervisory control comuter, realizes the automatic control to many weir tank production runes simultaneously, has improved production efficiency greatly, has enlarged range of application.
3, reach the purpose of stable water supply hydraulic pressure by programmable controller PLC, pressure unit and frequency converter, making that control valve is easier carries out, and the water supply pressure of weir tank is more stable.
4, can regulate flow value according to actual needs timely, make flow to change according to arts demand in real time, reduce raw material and harden, shorten the overflow cycle, cut down the consumption of energy, improve classification efficiency.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is an automatic-control block diagram of the present utility model.
Embodiment
Following with reference to accompanying drawing, further describe concrete technical scheme of the present utility model, so that those skilled in the art understands the present invention further, and do not constitute restriction to its right.
Embodiment 1.With reference to Fig. 1-2.A kind of automatic control system of water overflow fine grading silicon powder, it comprises overflow system and control system; Described overflow system comprises weir tank 10 and supply channel 6; Described supply channel 6 is provided with gate valve 4, electric control valve 7, water supply pump 2, electromagnetic flowmeter 5 and pressure unit 3; Described control system comprises programmable controller PLC11, industrial control computer 12 and frequency converter 1, programmable controller PLC11 is connected with industrial control computer 12, frequency converter 1, electromagnetic flowmeter 5, pressure unit 3 and electric control valve 7 respectively, and described frequency converter 1 is connected with water supply pump 2.
Embodiment 2.In the automatic control system of embodiment 1 described water overflow fine grading silicon powder, also be connected with water supply branch road 13 on the described supply channel 6, described water supply branch road 13 is provided with valve 9.
Embodiment 3.In the automatic control system of embodiment 1 or 2 described water overflow fine grading silicon powders, programmable controller PLC11 comprises CPU module, analog quantity load module, analog output module, digital quantity output module and communication module; Described industrial control computer 12 is connected by the communication module of communication interface card with programmable controller PLC11.
Embodiment 4.In the automatic control system of embodiment 3 described water overflow fine grading silicon powders, the output terminal of the digital quantity output module of described programmable controller PLC11 also is connected with alarm lamp 8.
Embodiment 5.In the automatic control system of any one described water overflow fine grading silicon powder of embodiment 1-4, described electromagnetic flowmeter 5 is installed on weir tank 10 inlet duct places.
Claims (5)
1. the automatic control system of a water overflow fine grading silicon powder is characterized in that it comprises overflow system and control system; Described overflow system comprises weir tank (10) and supply channel (6); Described supply channel (6) is provided with gate valve (4), electric control valve (7), water supply pump (2), electromagnetic flowmeter (5) and pressure unit (3); Described control system comprises programmable controller PLC (11), industrial control computer (12) and frequency converter (1), programmable controller PLC (11) is connected with industrial control computer (12), frequency converter (1), electromagnetic flowmeter (5), pressure unit (3) and electric control valve (7) respectively, and described frequency converter (1) is connected with water supply pump (2).
2. the automatic control system of water overflow fine grading silicon powder according to claim 1 is characterized in that, also is connected with water supply branch road (13) on the described supply channel (6), and described water supply branch road (13) is provided with valve (9).
3. the automatic control system of water overflow fine grading silicon powder according to claim 1, it is characterized in that programmable controller PLC (11) comprises CPU module, analog quantity load module, analog output module, digital quantity output module and communication module; Described industrial control computer (12) is connected by the communication module of communication interface card with programmable controller PLC (11).
4. the automatic control system of water overflow fine grading silicon powder according to claim 3 is characterized in that the output terminal of the digital quantity output module of described programmable controller PLC (11) also is connected with alarm lamp (8).
5. the automatic control system of water overflow fine grading silicon powder according to claim 1 is characterized in that, described electromagnetic flowmeter (5) is installed on weir tank (10) inlet duct place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202321533U CN201569908U (en) | 2009-09-18 | 2009-09-18 | Automatic control system for water-overflow precision-classified fine silicon powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202321533U CN201569908U (en) | 2009-09-18 | 2009-09-18 | Automatic control system for water-overflow precision-classified fine silicon powder |
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| Publication Number | Publication Date |
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| CN201569908U true CN201569908U (en) | 2010-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202321533U Expired - Lifetime CN201569908U (en) | 2009-09-18 | 2009-09-18 | Automatic control system for water-overflow precision-classified fine silicon powder |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319620A (en) * | 2011-06-02 | 2012-01-18 | 江苏大阳光辅股份有限公司 | A kind of micro mist screening technique of full-automatic band feedback |
| CN102777887A (en) * | 2012-07-24 | 2012-11-14 | 柳州高新区欧亚自动化设备有限责任公司 | Protection control device and protection control method for constant-differential-pressure electric adjusting valve for water-supply of boiler |
| CN102776921A (en) * | 2012-07-24 | 2012-11-14 | 柳州高新区欧亚自动化设备有限责任公司 | Control device and control method for overbottom pressure and water storage of pipe network of tap water pressurizing pump station |
-
2009
- 2009-09-18 CN CN2009202321533U patent/CN201569908U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102319620A (en) * | 2011-06-02 | 2012-01-18 | 江苏大阳光辅股份有限公司 | A kind of micro mist screening technique of full-automatic band feedback |
| CN102319620B (en) * | 2011-06-02 | 2013-08-07 | 江苏大阳光辅股份有限公司 | Fully-automatic micro powder screening method with feedback function |
| CN102777887A (en) * | 2012-07-24 | 2012-11-14 | 柳州高新区欧亚自动化设备有限责任公司 | Protection control device and protection control method for constant-differential-pressure electric adjusting valve for water-supply of boiler |
| CN102776921A (en) * | 2012-07-24 | 2012-11-14 | 柳州高新区欧亚自动化设备有限责任公司 | Control device and control method for overbottom pressure and water storage of pipe network of tap water pressurizing pump station |
| CN102776921B (en) * | 2012-07-24 | 2013-11-06 | 柳州高新区欧亚自动化设备有限责任公司 | Control method for overbottom pressure and water storage of pipe network of tap water pressurizing pump station |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100901 |
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| CX01 | Expiry of patent term |