CN112774555A - PAM (pulse amplitude modulation) automation device with water-break protection function and working method thereof - Google Patents
PAM (pulse amplitude modulation) automation device with water-break protection function and working method thereof Download PDFInfo
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- CN112774555A CN112774555A CN202011626519.2A CN202011626519A CN112774555A CN 112774555 A CN112774555 A CN 112774555A CN 202011626519 A CN202011626519 A CN 202011626519A CN 112774555 A CN112774555 A CN 112774555A
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- 238000000034 method Methods 0.000 title claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 149
- 239000000843 powder Substances 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims description 132
- 239000003814 drug Substances 0.000 claims description 76
- 238000003860 storage Methods 0.000 claims description 36
- 239000010865 sewage Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 12
- 230000008569 process Effects 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 claims description 3
- 238000011049 filling Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 claims description 3
- 230000001376 precipitating effect Effects 0.000 claims description 2
- 238000011017 operating method Methods 0.000 claims 1
- 239000008394 flocculating agent Substances 0.000 abstract description 6
- 229920002401 polyacrylamide Polymers 0.000 abstract description 6
- 238000004140 cleaning Methods 0.000 abstract description 5
- 239000002360 explosive Substances 0.000 abstract 3
- 239000000243 solution Substances 0.000 description 27
- 239000002245 particle Substances 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 238000011897 real-time detection Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000000274 adsorptive effect Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F33/00—Other mixers; Mixing plants; Combinations of mixers
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers
- B01F33/821—Combinations of dissimilar mixers with consecutive receptacles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F21/00—Dissolving
- B01F21/10—Dissolving using driven stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/50—Mixing liquids with solids
- B01F23/53—Mixing liquids with solids using driven stirrers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/20—Measuring; Control or regulation
- B01F35/22—Control or regulation
- B01F35/221—Control or regulation of operational parameters, e.g. level of material in the mixer, temperature or pressure
- B01F35/2211—Amount of delivered fluid during a period
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
- B01F2101/2204—Mixing chemical components in generals in order to improve chemical treatment or reactions, independently from the specific application
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dispersion Chemistry (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention relates to the technical field of flocculating agents, in particular to a PAM (polyacrylamide) automation device with a water break protection function and a working method thereof. The utility model provides a PAM automation equipment with protect function breaks water, including the main tank body and automatically controlled cabinet, the main tank body is including the configuration case that feeds through the setting in proper order, curing case and explosive box, be provided with the overflow passageway between configuration case and the curing case, be provided with the overflow passageway between curing case and the explosive box, be provided with the inlet channel on the configuration case, the one end of keeping away from the configuration case of inlet channel is the water inlet, toward having set gradually water flow switch near configuration case orientation on the inlet channel, inlet solenoid valve and flowmeter, the configuration case, all be provided with the mixer on curing case and the explosive box, be provided with dry powder case on the configuration case. The invention can detect the water flow passing condition, thereby preventing the faults of internal and external equipment caused by overlarge solution concentration and being convenient for cleaning and maintaining the equipment.
Description
Technical Field
The invention relates to the technical field of flocculating agents, in particular to a PAM (polyacrylamide) automation device with a water break protection function and a working method thereof.
Background
PAM (Polyacrylamide) the name polyacrylamide. PAM is a common domestic nonionic polymeric flocculant, the molecular weight is 150-2000 ten thousand, the commodity concentration is generally 8%, and the organic polymeric flocculant has a huge surface adsorption effect generated by forming larger flocs among particles.
Flocculation, which is the process of accelerating the coagulation of particles in suspension in water or liquid to achieve the object of solid-liquid separation, is referred to as flocculation and is usually carried out by adding a suitable flocculating agent which has the effect of adsorbing the particles and "bridging" the particles to promote agglomeration. The flocculating agent is typically an ammonium salt type electrolyte or an adsorptive colloidal chemical.
Flocculating agent preparation facilities in the existing market is in automatic configuration liquid medicine in-process, and the condition of outside disconnected water suddenly can appear occasionally, can lead to preparing liquid medicine concentration too big, and PAM medicament concentration is very thick when big, can make outside throw the screw pump because of stifled dying and break down, and when liquid medicine concentration configuration too big back, the inside easy caking of box is washd moreover, and it is very inconvenient to maintain.
Disclosure of Invention
The invention mainly aims at solving the problems that the concentration of prepared liquid medicine is overlarge due to the fact that sudden water cut-off sometimes occurs outside a flocculating agent preparation device in the current market in the automatic liquid medicine preparation process, so that an externally-added screw pump is blocked to cause a fault, and when the concentration of the liquid medicine is overlarge, the inside of a box body is easy to agglomerate, and the cleaning and maintenance are very inconvenient.
The purpose of the invention is mainly realized by the following scheme: a PAM automation device with water break protection function comprises a main box body and an electric control cabinet, wherein the main box body comprises a configuration box, a curing box and a medicine storage box which are sequentially communicated, an overflow channel is arranged between the configuration box and the curing box, an overflow channel is arranged between the curing box and the medicine storage box, a water inlet pipeline is arranged on the configuration box, one end of the water inlet pipeline, which is far away from the configuration box, is a water inlet, a water flow switch, a water inlet electromagnetic valve and a flow meter are sequentially arranged on the water inlet pipeline in the direction close to the configuration box, mixers are arranged on the configuration box, the curing box and the medicine storage box, a dry powder box for storing PAM dry powder is arranged on the configuration box, a dry powder conveyor is arranged on the dry powder box, a premixer is arranged between the dry powder conveyor and the water inlet pipeline, and the output end of the premixer is communicated into the configuration box, the liquid medicine storage box on be provided with the level gauge, configuration case, curing case and liquid medicine storage box on all be connected with liquid pipeline through a liquid outlet branch pipe, liquid pipeline's one end be the drain, liquid pipeline's the other end be out the medicine mouth, be provided with the second ball valve on the liquid outlet branch pipe that links to each other with the configuration case, be provided with the third ball valve on the liquid outlet branch pipe that links to each other with the curing case, be provided with the fourth ball valve on the liquid outlet branch pipe that links to each other with the liquid medicine storage box, liquid pipeline on be close to drain department and be provided with first ball valve, liquid pipeline on be close to liquid medicine mouth department and be provided with the fifth ball valve. The main box body comprises a configuration box, a curing box and a medicine storage box which are sequentially communicated, an overflow channel is arranged between the configuration box and the curing box, the overflow channel is arranged between the curing box and the medicine storage box, a water inlet pipeline is arranged on the configuration box, one end of the water inlet pipeline, which is far away from the configuration box, is a water inlet, a water flow switch, a water inlet electromagnetic valve and a flow meter are sequentially arranged on the water inlet pipeline in the direction close to the configuration box, the water flow switch can detect the water inflow and output corresponding signals, stirring machines are arranged on the configuration box, the curing box and the medicine storage box, a dry powder box for storing PAM dry powder is arranged on the configuration box, a dry powder conveyor is arranged on the dry powder box, a premixer is arranged between the dry powder conveyor and the water inlet pipeline, the output end of the premixer is communicated into the configuration box, the dry powder conveyor is existing feeding equipment and can convey the dry powder into the premixer, the setting of the premixer can mix clean water, then the mixed solution is sent into a configuration box for next operation, a premixer is also arranged to break up small dry powder blocks, so that PAM dry powder is more fully dissolved, a liquid level meter is arranged on a medicine storage box, the liquid level meter can detect three liquid levels of high, middle and low of the solution in the medicine storage box and transmit corresponding signals, the configuration box, the curing box and the medicine storage box are all connected with a liquid outlet pipeline through a liquid outlet branch pipe, one end of the liquid outlet pipeline is a sewage discharge port, the other end of the liquid outlet pipeline is a medicine outlet, a second ball valve is arranged on the liquid outlet branch pipe connected with the configuration box, a third ball valve is arranged on the liquid outlet branch pipe connected with the curing box, a fourth ball valve is arranged on the liquid outlet branch pipe connected with the medicine storage box, a first ball valve is arranged on the liquid outlet pipeline close to the sewage discharge port, a fifth ball valve is arranged on the liquid outlet pipeline close to the medicine outlet, and the control of opening or closing each ball valve can realize corresponding sewage discharge or, automatically controlled cabinet and water flow switch, the solenoid valve of intaking, flowmeter, dry powder conveyer, mixer and the equal electricity of level gauge are connected, can control the operation of each part through automatically controlled cabinet, and water flow switch's design can detect rivers and pass through the condition for whole device can know whether outside water is normal, thereby can prevent that solution concentration is too big to cause the trouble to inside and external equipment, can be convenient for maintain the washing of equipment, makes the liquid medicine normally produce.
Preferably, a filter is arranged on the water inlet pipeline and close to the water inlet. The water inlet pipe is provided with a filter close to the water inlet, and the filter can filter impurities in water entering the water inlet pipe, so that the product quality is guaranteed.
Preferably, the flowmeter is a float flowmeter. The flowmeter is a float flowmeter which is suitable for measuring low flow velocity and small flow, and the measurement accuracy is high.
Preferably, the liquid level meter is a floating ball liquid level meter. The liquid level meter is a floating ball liquid level meter, and is convenient to debug, good in reliability and high in precision.
Preferably, the configuration box is provided with an overflow pipe, and one end of the overflow pipe, which is far away from the configuration box, is communicated with one side of the liquid outlet pipeline, which is close to the sewage discharge outlet. The configuration box is provided with an overflow pipe, one end of the overflow pipe, which is far away from the configuration box, is communicated with one side, which is close to the sewage discharge outlet, of the liquid outlet pipeline, when the liquid level of the solution in the configuration box is higher and reaches the position of the overflow pipe, the solution higher than the liquid inlet part of the overflow pipe flows into the overflow pipe, and then flows out from the position of the sewage discharge outlet.
Preferably, a pressure reducing valve is arranged on the water inlet pipeline between the water flow switch and the water inlet electromagnetic valve. The position of the water inlet pipeline between the water flow switch and the water inlet electromagnetic valve is provided with a pressure reducing valve, and the pressure reducing valve can keep the stability of water inlet pressure.
Preferably, the filter is a Y-filter. The filter is a Y-shaped filter, so that the installation is convenient, the occupied area is small, the dirt cleaning is simple, and the maintenance cost is low.
Preferably, a level meter is arranged on the dry powder box. Be provided with the charge level indicator on the dry powder case, the setting of charge level indicator can real-time detection dry powder incasement material height, and when dry powder incasement material was less, can send low material level alarm, reminds the staff need increase the material.
A working method of the PAM automation device with the water break protection function comprises the following steps:
the method comprises the following steps that firstly, the whole device is divided into a manual working mode and an automatic working mode, wherein the manual working mode is used when the device is debugged, and the normal using state is the automatic working mode;
step two, when the machine is ready to start, firstly closing all ball valves, switching on water inlets, filling PAM dry powder in a dry powder box, switching a change-over switch of an electric control cabinet to an automatic mode, outputting a low liquid level signal by a liquid level meter when the water level is low, automatically opening a water inlet electromagnetic valve, enabling water flow to enter a configuration box after passing through a water inlet pipeline, and simultaneously starting stirring work by a stirrer;
step three, when the water level slowly rises to a middle liquid level, the liquid level meter outputs a middle liquid level signal, the electric control cabinet receives the middle liquid level signal, the dry powder conveyor starts to work, PAM dry powder in the dry powder box is conveyed into the premixer through a spiral pipeline on the dry powder conveyor and is premixed with clear water in a water inlet pipeline, then the wetted material enters the configuration box to be stirred and diluted and is configured according to the required concentration, in the preparation process, the water inlet quantity must be relatively stable under the observation of the flowmeter, so that the concentration of the prepared solution is constant in the whole working process, when the solution in the configuration box is more, the solution enters the curing box through an overflow channel, the solution is continuously stirred to be more fully mixed, the medicament is fully dissolved, the solution is prevented from precipitating, when the solution in the curing box is more, the solution enters the medicine storage box, the fourth ball valve and the fifth ball valve are opened, PAM liquid medicine in the medicine storage box flows out from the medicine outlet after passing through the liquid outlet branch pipe and the liquid outlet pipeline under the action of an external screw pump and is output to a medicine feeding point, so that a flocculant solution with required concentration is obtained;
step four, in the configuration process, the liquid level of the solution in the medicine storage box is continuously reduced until the liquid level reaches a middle liquid level, the liquid level meter outputs a middle liquid level signal, the electric control cabinet automatically opens the water inlet electromagnetic valve and the dry powder conveyor after receiving the middle liquid level signal, the medicine dispensing work is continuously started until a high liquid level signal is received, and the reciprocating circulation work is stopped;
step five, when the whole equipment normally runs, the external equipment is suddenly cut off, the electric control cabinet can process the water, within 10 seconds, under the condition that the water inlet electromagnetic valve is opened, the water flow switch does not receive a water inlet signal, namely the water cut-off condition occurs, the PLC system of the electric control cabinet can give a water cut-off alarm prompt and stop dispensing work until the water inlet signal is received and then the water cut-off is recovered;
and step six, when sewage is required to be discharged, closing the fifth ball valve, and opening the first ball valve, the second ball valve, the third ball valve and the fourth ball valve, so that the waste liquid medicine can flow out of the sewage discharge port.
Therefore, the PAM automation device with the water break protection function and the working method thereof have the following advantages: the invention has high automation degree, can detect the water flow passing condition, thereby preventing the faults of internal and external equipment caused by overlarge solution concentration, being convenient for cleaning and maintaining the equipment and ensuring the normal production of liquid medicine.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Illustration of the drawings: 1-sewage draining outlet, 2-flowmeter, 3-water inlet electromagnetic valve, 4-pressure reducing valve, 5-filter, 6-water inlet pipeline, 7-premixer, 8-water inlet, 9-overflow channel, 10-liquid outlet pipeline, 11-dry powder box, 111-dry powder conveyor, 12-main box body, 121-configuration box, 122-curing box, 123-medicine storage box, 13-electric control cabinet, 14-water flow switch, 15-liquid level meter, 16-medicine outlet, 171-first ball valve, 172-second ball valve, 173-third ball valve, 174-fourth ball valve, 175-fifth ball valve, 18-overflow pipe, 19-stirrer, 20-liquid outlet branch pipe and 21-level meter.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example 1:
as shown in fig. 1, a PAM automation apparatus with a water break protection function comprises a main body 12 and an electric control cabinet 13, wherein the main body 12 comprises a configuration box 121, a curing box 122 and a medicine storage box 123 which are sequentially communicated, an overflow channel 9 is arranged between the configuration box 121 and the curing box 122, the overflow channel 9 is arranged between the curing box 122 and the medicine storage box 123, a water inlet pipe 6 is arranged on the configuration box 121, a water inlet 8 is arranged at one end of the water inlet pipe 6 far away from the configuration box 121, a water flow switch 14, a water inlet electromagnetic valve 3 and a flow meter 2 are sequentially arranged on the water inlet pipe 6 in a direction close to the configuration box 121, the water flow switch 14 can detect water inflow and output corresponding signals, the flow meter 2 is a float flow meter 2, the float flow meter 2 is suitable for measuring low flow rate and small flow rate, the measurement accuracy is high, and stirrers 19 are arranged on the configuration box 121, a dry powder box 11 for storing PAM dry powder is arranged on the configuration box 121, a dry powder conveyor 111 is arranged on the dry powder box 11, a premixer 7 is arranged between the dry powder conveyor 111 and the water inlet pipeline 6, the output end of the premixer 7 is communicated to the configuration box 121, the dry powder conveyor 111 is an existing feeding device and can convey the dry powder into the premixer 7, the premixer 7 is arranged to mix clean water with the PAM dry powder conveyed from the dry powder box 11 and then convey the mixed solution into the configuration box 121 for next operation, the premixer 7 is also arranged to disperse small dry powder blocks, so that the PAM dry powder is dissolved more fully, the clean water is conveyed through two channels, one channel enters the premixer 7 and the other channel directly enters the configuration box 121, a liquid level meter 15 is arranged on the medicine storage box 123, and the liquid level meter 15 is arranged to detect the height and the height of the solution in the medicine storage box 123, The liquid level meter 15 is a floating ball liquid level meter 15, the debugging is convenient, the reliability is good, the precision is high, the configuration box 121, the curing box 122 and the medicine storage box 123 are all connected with the liquid outlet pipeline 10 through the liquid outlet branch pipe 20, one end of the liquid outlet pipeline 10 is a sewage draining exit 1, the other end of the liquid outlet pipeline 10 is a medicine outlet 16, the liquid outlet branch pipe 20 connected with the configuration box 121 is provided with a second ball valve 172, the liquid outlet branch pipe 20 connected with the curing box 122 is provided with a third ball valve 173, the liquid outlet branch pipe 20 connected with the medicine storage box 123 is provided with a fourth ball valve 174, the liquid outlet pipeline 10 is provided with a first ball valve 171 near the sewage draining exit 1, the liquid outlet pipeline 10 is provided with a fifth ball valve 175 near the medicine outlet 16, the electric control cabinet 13 and the water flow switch 14 can realize the corresponding sewage draining or medicine liquid discharging operation by controlling the opening or closing of each ball valve, and the electric, The equal electricity of solenoid valve 3, flowmeter 2, dry powder conveyer 111, mixer 19 and level gauge 15 of intaking is connected, can control the operation of each part through automatically controlled cabinet 13, and rivers pass through the condition can be detected in the design of rivers switch 14 for whole device can know whether outside water is normal, thereby can prevent that solution concentration is too big to cause the trouble to inside and external equipment, can be convenient for maintain the washing of equipment, makes the liquid medicine normally produce.
A filter 5 is arranged on the water inlet pipeline 6 and close to the water inlet 8, and the filter 5 can filter impurities in water entering the water inlet pipeline 6, so that the product quality is ensured; the filter 5 is a Y-shaped filter 5, so that the installation is convenient, the occupied area is small, the dirt cleaning is simple, and the maintenance cost is low.
An overflow pipe 18 is arranged on the configuration box 121, one end of the overflow pipe 18 far away from the configuration box 121 is communicated with one side of the liquid outlet pipeline 10 close to the sewage draining exit 1, when the liquid level of the solution in the configuration box 121 is higher and reaches the overflow pipe 18, the solution higher than the liquid inlet part of the overflow pipe 18 flows into the overflow pipe 18 and then flows out from the sewage draining exit 1.
The pressure reducing valve 4 is arranged on the water inlet pipeline 6 between the water flow switch 14 and the water inlet electromagnetic valve 3, and the pressure reducing valve 4 can keep the stability of water inlet pressure.
Be provided with charge level indicator 21 on dry powder case 11, charge level indicator 21's setting can real-time detection dry powder incasement 11 material height, and when dry powder incasement 11 material was less, can send out low material level warning, reminds the staff need increase the material.
A working method of the PAM automation device with the water break protection function comprises the following steps:
the method comprises the following steps that firstly, the whole device is divided into a manual working mode and an automatic working mode, wherein the manual working mode is used when the device is debugged, and the normal using state is the automatic working mode;
step two, when the machine is ready to start, firstly closing all ball valves, switching on the water inlet 8, filling PAM dry powder in the dry powder box 11, switching the switch of the electric control cabinet 13 to an automatic mode, outputting a low liquid level signal by the liquid level meter 15 when the water level is low, automatically opening the water inlet electromagnetic valve 3, enabling water flow to enter the configuration box 121 after passing through the water inlet pipeline 6, and simultaneously starting stirring work by the stirrer 19;
step three, when the water level slowly rises to the middle liquid level, the liquid level meter 15 outputs a middle liquid level signal, the electric control cabinet 13 receives the middle liquid level signal, the dry powder conveyor 111 starts to work, PAM dry powder in the dry powder box 11 is conveyed into the premixer 7 through a spiral pipeline on the dry powder conveyor 111 and is premixed with clear water in the water inlet pipeline 6, then the wetted material enters the configuration box 121 to be stirred and diluted, the material is configured according to the required concentration, in the preparation process, the water inlet quantity must be relatively stable under the observation of the flow meter 2, so that the concentration of the prepared solution is kept unchanged in the whole working process, when the solution in the configuration box 121 is too much, the solution enters the curing box 122 through the overflow channel 9, the mixing is continued to be more sufficient, the medicament is fully dissolved, the precipitation of the solution is prevented, when the solution in the curing box 122 is too much, the solution enters the medicine storage box 123, when the fourth ball valve 174 and the fifth ball valve 175 are opened, the PAM liquid medicine in the medicine storage box 123 flows out from the medicine outlet 16 and is output to a medicine feeding point after passing through the liquid outlet branch pipe 20 and the liquid outlet pipeline 10 under the action of the external screw pump, so that a flocculant solution with a required concentration is obtained, when the solution in the medicine storage box 123 is configured to a high liquid level, the liquid level meter 15 outputs a high liquid level signal, and after receiving the high liquid level signal, the electric control cabinet 13 automatically closes the water inlet electromagnetic valve 3 and the dry powder conveyor 111, and stops the medicine dispensing work;
step four, in the configuration process, the liquid level of the solution in the medicine storage box 123 is continuously reduced until the liquid level reaches a middle liquid level, the liquid level meter 15 outputs a middle liquid level signal, the electric control cabinet 13 automatically opens the water inlet electromagnetic valve 3 and the dry powder conveyor 111 after receiving the middle liquid level signal, the medicine dispensing work is continuously started until the high liquid level signal is received, and the reciprocating circulation work is carried out;
step five, when the whole equipment normally runs, the external equipment is suddenly cut off, the electric control cabinet 13 can process the water, within 10 seconds, and under the condition that the water inlet electromagnetic valve 3 is opened, the water flow switch 14 does not receive a water inlet signal, namely the water cut-off condition occurs, the PLC system of the electric control cabinet 13 can give a water cut-off alarm prompt and stop dispensing work until the water inlet signal is received and then the water is recovered;
step six, when sewage drainage is needed, closing the fifth ball valve 175, and opening the first ball valve 171, the second ball valve 172, the third ball valve 173 and the fourth ball valve 174, so that the waste liquid medicine can flow out of the sewage drainage port 1; each ball valve can be opened or closed according to actual conditions, so that corresponding pollution discharge or medicine discharge operation is achieved.
It should be understood that this example is only for illustrating the present invention and is not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
Claims (9)
1. A PAM automation device with a water break protection function comprises a main box body and an electric control cabinet, and is characterized in that the main box body comprises a configuration box, a curing box and a medicine storage box which are sequentially communicated, an overflow channel is arranged between the configuration box and the curing box, an overflow channel is arranged between the curing box and the medicine storage box, a water inlet pipeline is arranged on the configuration box, one end of the water inlet pipeline, which is far away from the configuration box, is a water inlet, a water flow switch, a water inlet electromagnetic valve and a flowmeter are sequentially arranged on the water inlet pipeline in a direction close to the configuration box, stirring machines are arranged on the configuration box, the curing box and the medicine storage box, a dry powder box for storing PAM dry powder is arranged on the configuration box, a dry powder conveyor is arranged on the dry powder box, and a premixer is arranged between the dry powder conveyor and the water inlet pipeline, the output end of the premixer is communicated to the inside of the configuration box, the medicine storage box is provided with a liquid level meter, the configuration box, the curing box and the medicine storage box are connected with a liquid outlet pipeline through a liquid outlet branch pipe, one end of the liquid outlet pipeline is a sewage discharge port, the other end of the liquid outlet pipeline is a medicine outlet, a second ball valve is arranged on the liquid outlet branch pipe connected with the configuration box, a third ball valve is arranged on the liquid outlet branch pipe connected with the curing box, a fourth ball valve is arranged on the liquid outlet branch pipe connected with the medicine storage box, a first ball valve is arranged on the liquid outlet pipeline close to the sewage discharge port, and a fifth ball valve is arranged on the liquid outlet pipeline close to the medicine outlet.
2. The PAM automation device with the function of water cut-off protection as claimed in claim 1, wherein the water inlet pipeline is provided with a filter near the water inlet.
3. The PAM automation device with water break protection function as claimed in claim 1, wherein the flow meter is a float flow meter.
4. The PAM automation device with water cut-off protection function as claimed in claim 1, 2 or 3, wherein the liquid level meter is a floating ball liquid level meter.
5. The PAM automation device with the water cut-off protection function as claimed in claim 1, 2 or 3, wherein the configuration box is provided with an overflow pipe, and one end of the overflow pipe far away from the configuration box is communicated with one side of the liquid outlet pipeline close to the sewage outlet.
6. The PAM automation device with the function of water cut-off protection as claimed in claim 1, 2 or 3, wherein a pressure reducing valve is arranged on the water inlet pipeline between the water flow switch and the water inlet solenoid valve.
7. The PAM automation device with water break protection function as claimed in claim 2, characterized in that the filter is a Y-type filter.
8. The PAM automation device with the function of water cut-off protection as claimed in claim 1, 2 or 3, characterized in that a level meter is arranged on the dry powder box.
9. The operating method of a PAM automation unit with water break protection as set forth in any of claims 1 to 8, comprising the steps of:
the method comprises the following steps that firstly, the whole device is divided into a manual working mode and an automatic working mode, wherein the manual working mode is used when the device is debugged, and the normal using state is the automatic working mode;
step two, when the machine is ready to start, firstly closing all ball valves, switching on water inlets, filling PAM dry powder in a dry powder box, switching a change-over switch of an electric control cabinet to an automatic mode, outputting a low liquid level signal by a liquid level meter when the water level is low, automatically opening a water inlet electromagnetic valve, enabling water flow to enter a configuration box after passing through a water inlet pipeline, and simultaneously starting stirring work by a stirrer;
step three, when the water level slowly rises to a middle liquid level, the liquid level meter outputs a middle liquid level signal, the electric control cabinet receives the middle liquid level signal, the dry powder conveyor starts to work, PAM dry powder in the dry powder box is conveyed into the premixer through a spiral pipeline on the dry powder conveyor and is premixed with clear water in a water inlet pipeline, then the wetted material enters the configuration box to be stirred and diluted and is configured according to the required concentration, in the preparation process, the water inlet quantity must be relatively stable under the observation of the flowmeter, so that the concentration of the prepared solution is constant in the whole working process, when the solution in the configuration box is more, the solution enters the curing box through an overflow channel, the solution is continuously stirred to be more fully mixed, the medicament is fully dissolved, the solution is prevented from precipitating, when the solution in the curing box is more, the solution enters the medicine storage box, the fourth ball valve and the fifth ball valve are opened, PAM liquid medicine in the medicine storage box flows out from the medicine outlet after passing through the liquid outlet branch pipe and the liquid outlet pipeline under the action of an external screw pump and is output to a medicine feeding point, so that a flocculant solution with required concentration is obtained;
step four, in the configuration process, the liquid level of the solution in the medicine storage box is continuously reduced until the liquid level reaches a middle liquid level, the liquid level meter outputs a middle liquid level signal, the electric control cabinet automatically opens the water inlet electromagnetic valve and the dry powder conveyor after receiving the middle liquid level signal, the medicine dispensing work is continuously started until a high liquid level signal is received, and the reciprocating circulation work is stopped;
step five, when the whole equipment normally runs, the external equipment is suddenly cut off, the electric control cabinet can process the water, within 10 seconds, under the condition that the water inlet electromagnetic valve is opened, the water flow switch does not receive a water inlet signal, namely the water cut-off condition occurs, the PLC system of the electric control cabinet can give a water cut-off alarm prompt and stop dispensing work until the water inlet signal is received and then the water cut-off is recovered;
and step six, when sewage is required to be discharged, closing the fifth ball valve, and opening the first ball valve, the second ball valve, the third ball valve and the fourth ball valve, so that the waste liquid medicine can flow out of the sewage discharge port.
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| CN202011626519.2A CN112774555A (en) | 2020-12-31 | 2020-12-31 | PAM (pulse amplitude modulation) automation device with water-break protection function and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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Application publication date: 20210511 |