CN202521226U - Remote conveying device for stabilizing slurry - Google Patents
Remote conveying device for stabilizing slurry Download PDFInfo
- Publication number
- CN202521226U CN202521226U CN2012201427975U CN201220142797U CN202521226U CN 202521226 U CN202521226 U CN 202521226U CN 2012201427975 U CN2012201427975 U CN 2012201427975U CN 201220142797 U CN201220142797 U CN 201220142797U CN 202521226 U CN202521226 U CN 202521226U
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- valve
- concentration
- slurry
- pipe
- concentration sensor
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- Treatment Of Sludge (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The utility model discloses a remote conveying device for stabilizing slurry, and relates to material conveying devices. The device consists of a slurry tank, a discharge valve, a guide pipe, a water adding pipe, a water adding manual valve, a slurry pump, a manual flow valve and a feeding pipe. The device is characterized in that an ultrasonic concentration sensor is arranged on the pipe section of one end of the feeding pipe, which is close to the manual flow valve, and the information output end of the ultrasonic concentration sensor is in circuit connection with the information input end of a programmable logic controller (PLC) processor; and an electromagnetic adjusting valve is connected in series with a pipeline bypassing the water adding manual valve and the guide pipe, and the opening information input end of the electromagnetic adjusting valve is in circuit connection with the information output end of the PLC processor. The device has the advantages that concentration data input by the ultrasonic concentration sensor are compared with a set value at any time by the PLC processor, and when the concentration data exceeds the set concentration value and the error value, signals are sent to adjust opening of the electromagnetic adjusting valve, namely adjust the water adding quantity, so that the stable value range of concentration in the slurry conveying process is ensured.
Description
Technical field:
The utility model relates to device for transporting objects, particularly a kind of long-range feedway of stable mud.
Background technique:
Traditional mud dilution adopts mechanical agitation to carry out manually-operated method; Perhaps on slurry transportation pump inlet pipeline, add the method that press water carries out the concentration manual tune; Its dense rare degree is difficult to accurately by artificial judgment, and it is very big to fluctuate, and needs manual tune at any time.Like this control the instability that mode obviously is inefficiency and quality.
Moisture dense property coal slime slurry more than 50% is carried 30m through the pipeline of centrifugal type slurry pump and 300m long tube footpath DN100
3/ h requires dredge pump that the above lift of 1.2MPa at least is provided, on power is selected power consumption too high, require the diameter of conveying pipe thickening simultaneously, Master Cost increase etc.
Long-distance pipe carries the coal slime slurry to require concentration of hydraulic mixture to be in basicly stable state, otherwise overdrying then dredge pump be short of power, can cause problems such as pipeline alluvial obstruction again.Mud moisture content is controlled at more than 85%, and long distances is only economical.
The stable requirement of concentration of hydraulic mixture control also is the technical requirements of adopting the operation of vacuum belt dewatering unit continuous high-efficient.Long-distance pipe carry coal slime slurry and belt vacuum dehydration require concentration be controlled at ± 5% than in the close limit, could move on long period stability and high efficiency ground.And the dehydration rate of raising coal slime slurry.
The existing long-range feedway of mud is made up of mud ditch, laying-off valve, material guiding tube, water mixing pipe, water mixing manually operated valve, slag stock pump, manual flow valve, feeding tube.Laying-off valve is opened and is let mud get into material guiding tube, slag stock pump entrance point; Material guiding tube is through threeway bypass water mixing manually operated valve, water mixing pipe; Regulate the concentration of hydraulic mixture in the water mixing manually operated valve can regulate material guiding tube, then mud is carried out long-range conveying through manual flow valve, feeding tube by the slag stock pump.Can regulate the manual flow valve aperture according to concentration of hydraulic mixture, thereby regulate flow, flow velocity in the feeding tube.
Because the supplied materials concentration in the mud ditch is variable; And the water mixing manually operated valve is regulated watering quantity by operator's experience; Range estimation can't guarantee through concentration of hydraulic mixture, degree of error in slag stock pump, the feeding tube, thereby can't guarantee stability, entering vacuum belt dewatering unit concentration and the degree of error in the feeding process.
Summary of the invention:
The purpose of the utility model is to overcome above-mentioned defective, and a kind of long-range feedway of stable mud is provided.
The scheme of the utility model is: device is made up of mud ditch, laying-off valve, material guiding tube, water mixing pipe, water mixing manually operated valve, slag stock pump, manual flow valve, feeding tube; It is characterized in that: on the pipeline section of nearly manual flow valve one end of feeding tube, the ultrasound concentration sensor is installed, ultrasound concentration sensor information output is connected with the information input terminal circuit of PLC processor; On the pipeline of water mixing manually operated valve and material guiding tube bypass, be connected in series a solenoid valve, the opening information input end of solenoid valve is connected with the information output circuit of PLC processor.
The advantage of the utility model is: the PLC processor compares the concentration data and the setting value of the input of ultrasound concentration sensor at any time; When the concentration value that surpasses setting, error amount; Send the aperture of Signal Regulation solenoid valve; Just regulate watering quantity, guarantee steady concentration value scope in the slurry transportation process.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Embodiment:
The utility model is made up of mud ditch 1, laying-off valve 2, material guiding tube 3, water mixing pipe 12, water mixing manually operated valve 11, slag stock pump 4, manual flow valve 5, feeding tube 7; It is characterized in that: on the pipeline section of feeding tube 7 nearly manual flow valve 5 one ends, ultrasound concentration sensor 8 is installed, ultrasound concentration sensor 8 information outputs are connected with the information input terminal circuit of PLC processor 9; On the pipeline of water mixing manually operated valve 11 and material guiding tube 3 bypass, be connected in series a solenoid valve 10, the opening information input end of solenoid valve 10 is connected with the information output circuit of PLC processor 9.
After pump discharge is loaded onto flowmeter, can guarantee stable mud flow rate after regulating through water mixing manually operated valve 11 according in advance calculating.Before charging not, show and manual flow valve 5 adjustings through flowmeter, can confirm the maximum open degree of manual flow valve 5, promptly maximum amount of water according to calculating in advance.Amount of water Q
WaterRegulate by the operating curve of setting by PLC regulator regulating and controlling valve:
Q
Water=Q
Water max(C
Inspection-C
Min) k
Q wherein
Water maxBe maximum amount of water after test; C
MinFor needs control and the mud least concentration after test, be known conditions; C
BoltBe detected concentration of hydraulic mixture, k is the open degree of solenoid valve 10.
Work as C
Bolt=C
MinThe time solenoid valve 10 open degree 100%.When the control system fault or when outage, the modulating valve standard-sized sheet.
Owing to taked the single loop control mode, adopt PLC regulator+solenoid valve 10 to regulate control, make the outlet concentration of hydraulic mixture more stable, also saved the expense of automatic control system.As can save water ga(u)ge and grey pump inlet material concentration sensor 8.As adopt many signal input control modes to need more measuring devices, and the control difficulty strengthens and stability greatly descends, and general expenses will increase greatly.
For the long-range fed distance of 300m, quantity delivered requires its flowability to get well under the condition of 30t/h caliber at DN100, therefore should be designed to carry the coal slime slurry of high-moisture percentage.Lift of pump is selected and can greatly be reduced to about 0.5MPa thus, and the pipe thickness 2mm that also can descend has saved tubing consumption.The contrast high concentration material is carried and many signals input regulating and controlling mode, can save the expense that drops into approximately about 30%.Select low density mass transport mode, greatly reduce the pipeline alluvial and silt problem up.Behind the supporting coal slime slurry concentration stabilize device, the dewatering efficiency of vacuum belt Haug drainer has improved about 30%.
Particularly when concentration sensor 8 faults, still can manually regulate and add the control that water carries out concentration of hydraulic mixture.
Claims (2)
1. the long-range feedway of a stable mud; Form by mud ditch (1), laying-off valve (2), material guiding tube (3), water mixing pipe (12), water mixing manually operated valve (11), slag stock pump (4), manual flow valve (5), feeding tube (7); It is characterized in that: on the pipeline section of nearly manual flow valve (5) one ends of feeding tube (7), ultrasound concentration sensor (8) is installed, ultrasound concentration sensor (8) information output is connected with the information input terminal circuit of PLC processor (9); On the pipeline of water mixing manually operated valve (11) and material guiding tube (3) bypass, be connected in series a solenoid valve (10), the opening information input end of solenoid valve (10) is connected with the information output circuit of PLC processor (9).
2. the long-range feedway of the described a kind of stable mud of root a tree name claim 1 is characterized in that: electromagnetic flowmeter (6) also is installed on feeding tube (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201427975U CN202521226U (en) | 2012-04-06 | 2012-04-06 | Remote conveying device for stabilizing slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201427975U CN202521226U (en) | 2012-04-06 | 2012-04-06 | Remote conveying device for stabilizing slurry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202521226U true CN202521226U (en) | 2012-11-07 |
Family
ID=47104177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201427975U Expired - Fee Related CN202521226U (en) | 2012-04-06 | 2012-04-06 | Remote conveying device for stabilizing slurry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202521226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620141A (en) * | 2012-04-06 | 2012-08-01 | 智胜化工股份有限公司 | Long-range conveying device for stable mud |
| CN103626679A (en) * | 2013-12-03 | 2014-03-12 | 山东鲁润热能科技有限公司 | Cooler waste-heat utilization device |
-
2012
- 2012-04-06 CN CN2012201427975U patent/CN202521226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620141A (en) * | 2012-04-06 | 2012-08-01 | 智胜化工股份有限公司 | Long-range conveying device for stable mud |
| CN103626679A (en) * | 2013-12-03 | 2014-03-12 | 山东鲁润热能科技有限公司 | Cooler waste-heat utilization device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20210406 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |