CN103694065B - A kind of miniature ball wash mill and method - Google Patents

A kind of miniature ball wash mill and method Download PDF

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Publication number
CN103694065B
CN103694065B CN201310561584.5A CN201310561584A CN103694065B CN 103694065 B CN103694065 B CN 103694065B CN 201310561584 A CN201310561584 A CN 201310561584A CN 103694065 B CN103694065 B CN 103694065B
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China
Prior art keywords
subsider
water
control
miniature ball
tank
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Expired - Fee Related
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CN201310561584.5A
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Chinese (zh)
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CN103694065A (en
Inventor
李丁
罗亚军
田长华
薛英锋
卿辉
张阔
谭享东
张莹
刘园
李连军
赵文东
梅智涛
张红梅
王琳
胡章斌
何永强
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Xian Modern Chemistry Research Institute
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Xian Modern Chemistry Research Institute
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Abstract

The invention discloses a kind of miniature ball wash mill and method, described includes subsider, being provided with in subsider and be parallel to bottom subsider and removable filter plate, screen plate is equipped with filter cloth, on filter cloth, mesh diameter is less than the diameter of miniature ball;Being provided with water injector on subsider inwall above screen plate, water injector is connected with constant temp. heating tank by water inlet pipe;Wet medicine head tank is positioned at the surface of subsider, and the bottom of wet medicine head tank is provided with control valve, controls valve and is connected to control system;The bottom of subsider is connected with the upper end of surge tank by transparent hose, is provided with discharging tube, discharging tube is provided with concentration on-line detector bottom surge tank;Surge tank top is connected with vacuum pump by exhaust tube, and concentration on-line detector and vacuum pump are connected with control system.This device and method can realize the man-machine isolation of miniature ball washing process, improves detersive efficiency, it is achieved that automatization.

Description

A kind of miniature ball wash mill and method
Technical field
The invention belongs to explosive wastewater field, relate generally to a kind of miniature ball wash mill and technique, particularly relate to a kind of can quickly realize miniature ball washing automatization, serialization device and method.
Background technology
Miniature ball (general diameter less than 50 μm) is mainly used in the modified double base propellant Slurry casting technique of high-energy, low adhesive content.High-quality, low cost, the fine ball of granule is the key of application Slurry casting technique, wherein washes ball operation and mainly washes away osseocolla and the inorganic salt etc. of ball remained on surface, washes whether ball thoroughly affects very big on the quality of ball.Due to the particularity of explosive wastewater industry, domestic existing miniature ball what wash that ball technique mainly adopts is natural sedimentation.First miniature ball to be washed is positioned over subsider, adds hot water manual stirring, after miniature ball natural subsidence, then subsider upper strata cleaning mixture is poured out, repeatedly cyclic operation to cleaning mixture limpid.
It is low that the method washes ball cycle length, efficiency, and single washed the ball cycle up to 10 hours;Wash ball process water consumption big, it is impossible to realize washing ball effect on-line checking, mainly judge washing ball effect by rule of thumb.Not isolating simultaneously because man-machine, operation field poisonous and harmful, labor intensity is big, and the physical and mental health of employee is caused bigger employment injuries.
Summary of the invention
It is an object of the invention to wash ball operation for current miniature ball be interrupted discontinuous, human-machine operation and do not isolate, the problems such as detersive efficiency is low, environmental issue is prominent, design and a kind of can quickly realize the abundant wash mill of ball and provide man-machine isolation environment simultaneously, can realize automatic continuous production technology.
To achieve these goals, the present invention takes following technical solution:
A kind of miniature ball wash mill, including subsider, this device also includes constant temp. heating tank, wet medicine head tank, surge tank, vacuum pump and control system;
Being provided with in described subsider and be parallel to bottom subsider and removable filter plate, screen plate is equipped with filter cloth, on filter cloth, mesh diameter is less than the diameter of miniature ball;Being provided with water injector on subsider inwall above screen plate, water injector is connected with constant temp. heating tank by water inlet pipe;
Wet medicine head tank is positioned at the surface of subsider, and the bottom of wet medicine head tank is provided with control valve, controls valve and is connected to control system;
The bottom of subsider is connected with the upper end of surge tank by transparent hose, is provided with discharging tube, discharging tube is provided with concentration on-line detector bottom surge tank;Surge tank top is connected with vacuum pump by exhaust tube, and concentration on-line detector and vacuum pump are connected with control system.
Described water injector includes the cirele bend being parallel to screen plate, and a circumference minimum with this cirele bend distance of center circle on cirele bend uniformly offers multiple hole for water spraying, and cirele bend is connected with water inlet pipe by flange.
Being provided with compression pump on described water inlet pipe, be provided with water-level instrumentation and temperature monitor in subsider, the discharging tube bottom surge tank is provided with tapping valve, compression pump, water-level instrumentation, temperature monitor and tapping valve are all connected with control system.
Described screen plate adopts heatproof polypropylene material or polyester material to make.
Described subsider is circular trough, is provided with heat preservation sandwich layer in the sidewall of subsider.
Described wet medicine head tank is provided with automatic scouring device and stirring paddle, transparent hose is provided with explosion release valve, vacuum pump is provided with the filter for protecting vacuum pump.
Described discharging tube is arranged below wastewater disposal basin, is provided with waste water pump in wastewater disposal basin, and waste water pump is connected to control system.
A kind of method washing miniature ball, comprises the following steps:
Step one, is transported in wet medicine head tank by miniature ball to be washed, adds water, open automatic scouring device and stirring paddle in dewing medicine head tank, and after miniature ball and water mix homogeneously, control system opens control valve, makes mixed liquor enter in subsider;
Step 2, control system opens compression pump, injects hot water by constant temp. heating tank, feed back through water level detection gauge in subsider, arrives until subsider liquid level and stops water filling after subsider volume 1/2~2/3;
Step 3, control system opens vacuum pump, by in the waste liquid suction surge tank bottom subsider screen plate, open tapping valve, detected the concentration of waste liquid Plays material by the concentration on-line detector on discharging tube, and testing result is fed back to control system, if the concentration of standard substance is not reaching to established standards, then repeated execution of steps two, step 3, until the concentration of standard substance reaches established standards, terminate washing process.
The temperature of hot water described in step 2 is 55~65 DEG C.
When control system opens vacuum pump, in surge tank, vacuum is 0~60kPa.
The invention have the characteristics that:
1. the man-machine isolation of the washing process of miniature ball, whole washing process achieves serialization, automatization.
2. the detersive efficiency of miniature ball is greatly improved, and achieves zero loss, whole technical process cleaned in situ, environmental friendliness in washing process simultaneously.
3. introduce real-time monitoring system, clean result is established the observation method of science, it is simple to launch correlation theory research, advantageously form sector planning and standard.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this device;
Fig. 2 is the top view of subsider;
Fig. 3 is the structured flowchart that this apparatus control portion is divided;
Fig. 4 is the control flow chart of this apparatus control system;
Number in the figure represents: 1 constant temp. heating tank, 2 water inlet pipes, 3 compression pumps, 4 screen plates, 5 control valve, 6 subsiders, 7 wet medicine head tanks, 8 cirele bends, 9 explosion release valves, 10 transparent hoses, 11 discharging tubes, 12 wastewater disposal basins, 13 tapping valves, 14 surge tanks, 15 concentration on-line detectors, 16 exhaust tubes, 17 vacuum pumps, 18 filters, 19 waste water pumps, 20 hole for water sprayings;
Below in conjunction with drawings and Examples, the present invention will be further described.
Detailed description of the invention
The present invention implements with reference to Fig. 1, Fig. 2, Fig. 3.
A kind of miniature ball wash mill, including subsider 6, this device also includes constant temp. heating tank 1, wet medicine head tank 7, surge tank 14, vacuum pump 17 and control system;
Being provided with in described subsider 6 and be parallel to bottom subsider 6 and removable filter plate 4, screen plate 4 is equipped with filter cloth, the mesh diameter of filter cloth is less than the diameter of miniature ball;Being provided with water injector on subsider 6 inwall above screen plate 4, water injector is connected with constant temp. heating tank 1 by water inlet pipe 2;
Wet medicine head tank 7 is positioned at the surface of subsider 6, and the bottom of wet medicine head tank 7 is provided with control valve 5, controls valve 5 and is connected to control system;
The bottom of subsider 6 is connected with the upper end of surge tank 14 by transparent hose 10, is provided with discharging tube 11, discharging tube 11 is provided with concentration on-line detector 15 bottom surge tank 14;Surge tank 14 top is connected with vacuum pump 17 by exhaust tube 16, and concentration on-line detector 15 and vacuum pump 17 are connected with controlling system.
Constant temp. heating tank 1 provides the constant-temperature hot water of technological temperature 55~65 DEG C, and can realize constant temperature within the scope of 40~90 DEG C and automatically control.Constant-temperature hot water is delivered to subsider 6 by the compression pump 3 on water inlet pipe 2, and the pressure limit of compression pump 3 is adjustable, control system control.
Wet medicine head tank 7 is arranged on the surface of subsider 6, is provided with control valve 5 bottom it, and controlling valve 5 is operated pneumatic valve, can carry out Flow-rate adjustment;Inside liquid level is controlled, and is provided with automatic scouring device, stirring paddle, when miniature ball enters in wet medicine head tank 7 through conveyer device, opens automatic scouring device and arrives behind setting position until liquid level, start agitating device.
In the present invention, water injector adopts the cirele bend 8 with hole for water spraying 20, as in figure 2 it is shown, the miniature ball on screen plate 4 is washed.Cirele bend 8 is arranged on the sidewall of subsider 6, and the preferably circular groove of subsider 6, make the outer ring of cirele bend 8 just can fit with circular trough inwall;Cirele bend 8 place disk is parallel with screen plate 4, and on a circumference minimum with this cirele bend 8 distance of center circle on cirele bend 8, (namely on the inner ring of cirele bend 8) uniformly offers multiple hole for water spraying 20.
Cirele bend 8 is connected with water inlet pipe 2 by flange, it is simple to the replacing of screen plate 4.When opening compression pump 3, hot water ejects to the direction, the center of circle of cirele bend 8 from hole for water spraying 20, miniature ball on filter cloth can effectively be washed away by this structure, being easy in the process of adding water and make its mix homogeneously, the composition rapid solution such as osseocolla and inorganic salt of making miniature ball surface is in hot water;Screen plate 4 in subsider 6 is fixed on subsider 6 medial wall, and parallel with subsider 6 bottom surface, on screen plate 4, the diameter of mesh is less than the diameter of miniature ball, and screen plate 4 is detachable, and the mesh diameter of filter cloth is optional;The material of screen plate 4 preferably employs high intensity heatproof polypropylene or polyester material is made;Screen plate 4, apart from the height of subsider 6 bottom surface, should be advisable reaching the height on subsider 6 volume 2/3.Subsider 6 sidewall is provided with heat preservation sandwich layer, keeps the temperature environment in subsider 6;Subsider 6 is provided with the water-level instrumentation and temperature monitor that are connected with control system, makes the liquid level of subsider 6 can pass through to control system fading margin, and show the real time temperature in tank.
Surge tank 14, for extracting the waste liquid bottom subsider 6, is connected with surge tank 14 upper end by transparent hose 10 bottom subsider 6;Transparent hose 10 is provided with explosion release valve 9;Being provided with the tapping valve 13 being connected with control system and concentration on-line detector 15 on the discharging tube 11 of surge tank 14 lower end, be responsible for the concentration on-line checking of the standard reference material to waste water, standard reference material refers generally to osseocolla or sodium sulfate.
Vacuum pump 17 is connected to the top of surge tank 14 by pipeline, is used for providing vacuum environment, forms negative pressure, extracts the waste liquid bottom subsider 6.Vacuum pump 17 is provided with filter 18, vacuum pump 17 is protected.
The waste liquid discharged in surge tank 14 enters in the wastewater disposal basin 12 below surge tank 14, is provided with the waste water pump 19 being connected with control centre in wastewater disposal basin 12, and waste water is evacuated to treatment center of sewage by waste water pump 19.
The control system of this device is PLC, PLC is connected to field instrument and executor, these field instruments and executor include controlling valve 5, concentration on-line detector 15, vacuum pump 17, compression pump 3, tapping valve 13, water-level instrumentation, temperature monitor, tapping valve 13 and waste water pump 19 etc., mainly complete detection and the data feedback automatically of technological parameter;PLC is also associated with outut device and alarm.Outut device mainly includes printer, mainly completes output and the printing of production report and historical data.Control system completes set-point and sets, implement data feedback, monitoring, warning, data record and query function, monitor in real time according to data such as temperature, pressure, liquid level, concentration and data acquisition, and carry out control strategy computing and judgement, it controls process as shown in Figure 4;Final realization is automatically adjusted and control.
A kind of miniature ball washing methods, comprises the following steps:
Step one, miniature ball to be washed is transported in wet medicine head tank, dewing medicine head tank adds appropriate water (can be selected for tap water), open automatic scouring device and arrive startup stirring paddle behind setting position until liquid level, stirring 5~10min, after miniature ball and water mix homogeneously, control system opens control valve, makes mixed liquor enter in subsider;Closing control valve behind mixed liquor entrance subsider setting position.
Step 2, start constant temp. heating tank, treat that water temperature arrives the temperature 55~65 DEG C set, preferably 60 DEG C time, control system opens compression pump, in subsider, inject hot water by constant temp. heating tank, feed back through water level detection gauge, arrive until subsider liquid level and arrive stopping water filling after subsider volume 1/2~2/3 until subsider liquid level;Now miniature ball is stayed on the filter cloth of screen plate, and waste liquid is below screen plate;
Step 3, control system opens vacuum pump, produces negative pressure, make in the waste liquid suction surge tank bottom subsider in surge tank;After waste liquid is drained, now miniature ball becomes filter cake state, open surge tank tapping valve, the concentration of waste liquid Plays material is detected by the concentration on-line detector on discharging tube, and testing result is fed back to control system, if the concentration of standard substance is not reaching to established standards, then repeated execution of steps two, step 3, until the concentration of standard substance reaches established standards, terminate washing process;After washing, miniature ball becomes filter cake state, is taken out by filter cake.The waste water produced in whole washing process enters treatment center of sewage through waste water pump in units of day.
Manufacturing condition of the present invention is: (1) constant temp. heating tank hot water temperature: 55 DEG C~65 DEG C (2) subsider miniature ball suspensions containing solid percentage by volume: 0~50%, (3) vacuum: 0~60kPa (bottom subsider screen plate) in surge tank, (4) miniature spherical powder footpath: 10~80 μm, (5) subsider screen plate material: high intensity heatproof polypropylene or woven dacron.
Due to the particularity of explosive wastewater industry, controlling system and operation field isolation, control room all adopts explosion-proof metal tube appropriate ground connection to operation field connecting line, cable etc., and signal transmitting apparatus is equipped with corresponding insulated gate.Automatization washes ball process system and has been also carried out the Synchronization Design of safety while design, one is the installations and facilities of the power at all scenes, electrical equipment, detection, the monitoring corresponding explosive-proof grade of employing, two is all consider operation exception, the chain cross complaint of monitoring exception, alarm two-stage prevention and control measure in each control mode, it is ensured that essential safety and the high reliability that ball system is run is washed by automatization.
Embodiment:
Apparatus of the present invention are utilized to wash certain miniature ball: this ball is mainly composed of nitrocotton and certain effective catalyst etc., dry weight 20kg, particle size range 30 μm~50 μm.
Step one, miniature ball to be washed is transported in wet medicine head tank, dewing medicine head tank adds appropriate water to wet medicine head tank volume 1/2 place, open automatic scouring device and arrive startup stirring paddle after wet medicine head tank volume 2/3 until liquid level, stirring 10min, control system opens control valve, makes mixed liquor enter in subsider;Mixed liquor enters subsider to closing control valve behind subsider volume 1/3 place;
Step 2, starts constant temp. heating tank, and when water temperature arrives 60 DEG C, control system opens compression pump, injects hot water by constant temp. heating tank, feed back through water level detection gauge in subsider, treats that the arrival of subsider liquid level is dropped groove volume 2/3 place and stopped water filling;
Step 3, control system opens vacuum pump, makes in the waste liquid suction surge tank bottom subsider;After waste liquid is drained, open surge tank tapping valve, detected the concentration of waste liquid Plays material osseocolla by the online concentration meter on discharging tube, and testing result is fed back to control system, repeat step 2, step 3 totally 3 times, detect that standard substance concentration reaches established standards.
After standard substance concentration reaches established standards, then carrying out the washing process of a new round, twice washing of medicinal liquid in wet medicine head tank completes, and expends 0.5 hour altogether, and adopts the medicine of traditional method washing homogenous quantities at least to need to expend 10 hours.

Claims (10)

1. a miniature ball wash mill, including subsider (6), it is characterized in that, this device also includes constant temp. heating tank (1), wet medicine head tank (7), surge tank (14), vacuum pump (17) and controls system;
Being provided with the also removable filter plate (4) being parallel to subsider (6) bottom in described subsider (6), screen plate is equipped with filter cloth on (4), and on filter cloth, mesh diameter is less than the diameter of miniature ball;Being provided with water injector on subsider (6) inwall of screen plate (4) top, water injector is connected with constant temp. heating tank (1) by water inlet pipe (2);
Wet medicine head tank (7) is positioned at the surface of subsider (6), and the bottom of wet medicine head tank (7) is provided with control valve (5), controls valve (5) and is connected to control system;
The bottom of subsider (6) is connected with the upper end of surge tank (14) by transparent hose (10), surge tank (14) bottom is provided with discharging tube (11), and discharging tube (11) is provided with concentration on-line detector (15);Surge tank (14) top is connected with vacuum pump (17) by exhaust tube (16), and concentration on-line detector (15) and vacuum pump (17) are connected with controlling system;
Described miniature ball refers to diameter ball below 50 μm.
2. miniature ball wash mill as claimed in claim 1, it is characterized in that, described water injector includes the cirele bend (8) being parallel to screen plate (4), uniformly offering multiple hole for water spraying (20) on the circumference that cirele bend (8) is upper and this cirele bend (8) distance of center circle is minimum, cirele bend (8) is connected with water inlet pipe (2) by flange.
3. miniature ball wash mill as claimed in claim 2, it is characterized in that, described water inlet pipe (2) is provided with compression pump (3), subsider is provided with water-level instrumentation and temperature monitor in (6), being provided with tapping valve (13) on the discharging tube (11) of surge tank (14) bottom, compression pump (3), water-level instrumentation, temperature monitor and tapping valve (13) are all connected with control system.
4. miniature ball wash mill as claimed in claim 3, it is characterised in that described screen plate (4) adopts heatproof polypropylene material or polyester material to make.
5. miniature ball wash mill as claimed in claim 3, it is characterised in that described subsider (6) is circular trough, is provided with heat preservation sandwich layer in the sidewall of subsider (6).
6. miniature ball wash mill as claimed in claim 3; it is characterized in that; described wet medicine head tank (7) is provided with automatic scouring device and stirring paddle; transparent hose (10) is provided with explosion release valve (9), vacuum pump (17) is provided with the filter (18) for protecting vacuum pump (17).
7. miniature ball wash mill as claimed in claim 3, it is characterized in that, described discharging tube (11) is arranged below wastewater disposal basin (12), being provided with waste water pump (19) in wastewater disposal basin (12), waste water pump (19) is connected to control system.
8. the device that a kind utilizes described in claim 6 washs the method for miniature ball, it is characterised in that comprise the following steps:
Step one, is transported in wet medicine head tank by miniature ball to be washed, adds water, open automatic scouring device and stirring paddle in dewing medicine head tank, and after miniature ball and water mix homogeneously, control system opens control valve, makes mixed liquor enter in subsider;
Step 2, control system opens compression pump, injects hot water by constant temp. heating tank, feed back through water level detection gauge in subsider, arrives until subsider liquid level and stops water filling after subsider volume 1/2~2/3;
Step 3, control system opens vacuum pump, by in the waste liquid suction surge tank bottom subsider screen plate, open tapping valve, the concentration of logical concentration on-line detector detection waste liquid Plays material, and testing result is fed back to control system, if the concentration of standard substance is not reaching to established standards, then repeated execution of steps two, step 3, until the concentration of standard substance reaches established standards, terminate washing process.
9. method as claimed in claim 8, it is characterised in that the temperature of hot water described in step 2 is 55~65 DEG C.
10. method as claimed in claim 8, it is characterised in that when control system opens vacuum pump, in surge tank, vacuum is 0~60kPa.
CN201310561584.5A 2013-11-11 2013-11-11 A kind of miniature ball wash mill and method Expired - Fee Related CN103694065B (en)

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