CN112723514A - Automatic dosing system and dosing method for railway sewage - Google Patents
Automatic dosing system and dosing method for railway sewage Download PDFInfo
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- CN112723514A CN112723514A CN202011562867.8A CN202011562867A CN112723514A CN 112723514 A CN112723514 A CN 112723514A CN 202011562867 A CN202011562867 A CN 202011562867A CN 112723514 A CN112723514 A CN 112723514A
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- 239000010865 sewage Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 15
- 239000003814 drug Substances 0.000 claims abstract description 102
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 37
- 239000002360 explosive Substances 0.000 claims abstract description 12
- 239000000523 sample Substances 0.000 claims description 31
- 238000012544 monitoring process Methods 0.000 claims description 23
- 229940079593 drug Drugs 0.000 claims description 13
- 230000006698 induction Effects 0.000 claims description 13
- 238000005485 electric heating Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 6
- 238000004090 dissolution Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 239000003153 chemical reaction reagent Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000000126 substance Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005188 flotation Methods 0.000 description 3
- 229940126589 solid medicine Drugs 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 238000013178 mathematical model Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
- C02F1/685—Devices for dosing the additives
- C02F1/688—Devices in which the water progressively dissolves a solid compound
-
- 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
- B01F23/70—Pre-treatment of the materials to be mixed
- B01F23/71—Grinding materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
- B01F31/89—Methodical aspects; Controlling
-
- 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
-
- 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
- B01F33/836—Mixing plants; Combinations of mixers combining mixing with other treatments
- B01F33/8361—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating
- B01F33/83613—Mixing plants; Combinations of mixers combining mixing with other treatments with disintegrating by grinding or milling
-
- 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
- B01F35/2201—Control or regulation characterised by the type of control technique used
- B01F35/2206—Use of stored recipes for controlling the computer programs, e.g. for manipulation, handling, production or composition in mixing plants
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- 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
- B01F2101/305—Treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/005—Valves
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/03—Pressure
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
Abstract
The invention relates to an automatic dosing system and a dosing method for railway sewage, wherein the system comprises a medicine storage box, a grinding machine, a dissolving tank, a water inlet pipe of the dissolving tank and an air floatation tank; the medicine storage box is connected into the grinding machine through a connecting pipe, the grinding machine is connected into the dissolving tank through a medicine outlet pipe of the grinding machine, and the dissolving tank is connected into the air floatation tank through a medicine outlet pipe; all be provided with inductor or executor on explosive box, grinding machine, dissolving tank and inlet tube, the air supporting pond thereof, all insert first PLC terminal control ware, the inductor sends the response parameter to first PLC terminal control ware, first PLC terminal control ware through with the comparison of predetermineeing the threshold value send out the police dispatch newspaper to control the executor and move. The system has high automation degree, is convenient and fast to operate, saves time and labor and solves the problem of labor cost; and the system can accurately calculate the dosage, and the solid medicament is fully dissolved by multiple measures, so that the effluent quality is better ensured, the medicament waste is reduced, and good economic benefits are generated for sewage treatment enterprises.
Description
Technical Field
The invention relates to the technical field of sewage treatment of stations along a railway, in particular to an automatic dosing system and a dosing method for railway sewage.
Background
With the release and implementation of the environmental protection law and the water pollution prevention law in China, people around stations along the railway have great opinions about the station to discharge sewage at will, and environmental protection departments in many places start to limit or punish the station to discharge sewage at will. In the face of reality, railway departments are urgently needed to take treatment measures for domestic sewage discharge of middle-small vehicle stations. At present, most of dosing equipment modes for railway sewage treatment are in manual and semi-automatic modes, the dosage of medicine addition in the sewage treatment process is operated by depending on manual experience, scientific guidance is lacked, solid medicines are not fully dissolved, and medicine waste is caused to a great extent. The quality of the discharged water exceeds the standard due to human judgment errors; therefore, it is very important to design an automatic drug feeding system with high automation degree, capability of fully dissolving the solid drug and low labor cost.
Disclosure of Invention
The invention aims to provide an automatic dosing system and a dosing method for railway sewage, and solves the problems that an existing dosing system is low in automation degree, solid medicines cannot be fully dissolved, labor cost is high and the like.
The technical scheme adopted by the invention is as follows:
railway sewage automatic reagent feeding system, its characterized in that:
the system comprises a medicine storage box, a grinding machine, a dissolving tank, a water inlet pipe of the dissolving tank, an electronic scale top cover and an air floatation tank;
the medicine storage box is connected with the grinding machine through a connecting pipe, the grinding machine is connected with the dissolving tank through a medicine outlet pipe of the grinding machine, and the dissolving tank is connected into the air floatation tank through a medicine outlet pipe; the drug storage box, the grinding machine, the dissolving tank, the electronic scale top cover, the water inlet pipe of the electronic scale top cover and the air floatation tank are all provided with sensors and/or actuators which are all connected to a first PLC terminal controller;
the sensor sends induction parameters to the first PLC terminal controller, and the first PLC terminal controller sends out an alarm through comparison with a preset threshold value and controls the actuator to operate.
The medicine storage box is of a tank body structure, the top of the medicine storage box is provided with a top cover of the medicine storage box, and the bottom of the medicine storage box is funnel-shaped;
the grinder is arranged below the bottom of the hopper of the medicine storage box, and a medicine outlet pipe of the grinder is connected to the top of the dissolving tank through a vertical material hopper.
The sensor that sets up on the explosive box is first pressure sensor, and the executor that sets up on the explosive box is the electromagnetic shaker, and first pressure sensor and electromagnetic shaker all insert the second PLC controller that sets up on the explosive box, and the second PLC controller inserts first PLC terminal control ware again.
The actuator arranged on the grinding machine is a motor and is connected to a second PLC controller arranged on the medicine storage box; the grinding machine is welded with the medicine storage box through a connecting pipe;
the sensors arranged on the dissolving tank are a second pressure sensor, a temperature sensing probe and a concentration sensing probe which are all connected to a third PLC controller arranged on the drug dissolving tank, and the third PLC controller is connected to the first PLC terminal controller;
the actuators arranged on the dissolving tank are an ultrasonic transducer, an ultrasonic generator and a U-shaped electric heating tube, and are all connected into a third PLC controller arranged on the dissolving tank, and the third PLC controller is connected into the first PLC terminal controller.
The sensor arranged on the top cover of the electronic scale is a second pressure sensor, the actuator arranged on the top cover of the electronic scale is a magnetic lock, the second pressure sensor is arranged below the top cover of the electronic scale, the door closer is arranged below the top cover of the electronic scale, and the door closer and the lower part of the top cover of the electronic scale are fixed by bolts;
the magnetic lock is arranged above the flange transverse column and is connected with the flange transverse column in a welding mode; the door closing lock bracket is arranged on the supporting transverse column and is connected with the supporting transverse column in a bolt fixing mode; the supporting transverse column is provided with an angular contact bearing and a lower supporting block, and the lower supporting block and the supporting transverse column are connected in a welding manner;
the opening and closing of the top cover of the electronic scale are mainly realized by the combined action of a door closer, an angular contact bearing and a lower support block.
The sensor arranged on the water inlet pipe is a rotor flow meter, and the actuator arranged on the water inlet pipe is a first electromagnetic control valve; the rotor flow meter and the first electromagnetic control valve are connected into a first PLC terminal controller, and the water inlet pipe is connected with a water supply pipe network in a plant.
A second electromagnetic control valve and a dosing pump are arranged on the medicine outlet pipe, and the dosing pump is connected to the air floatation tank through a dosing pump pipe; the second electromagnetic control valve and the dosing pump are connected to a third PLC controller arranged on the dissolving tank, and the third PLC controller is connected to the first PLC terminal controller.
Be provided with first sewage monitoring inductive probe on the air supporting pond, first sewage monitoring inductive probe inserts first PLC terminal controller.
The dosing method of the railway sewage automatic dosing system is characterized by comprising the following steps:
the first PLC terminal controller has functions of displaying, setting and modifying parameters, and the set parameters comprise medicament dissolution temperature, ultrasonic transducer frequency, vibrator frequency, a first pressure sensor threshold, a second pressure sensor threshold and a first sewage monitoring induction probe data monitoring threshold;
the first PLC terminal controller is electrically connected with the second PLC controller, the third PLC controller and the first sewage monitoring induction probe and is bidirectional information feedback.
The invention has the following advantages:
the system has the advantages of high automation degree, convenience in operation, convenience in management, time saving and labor saving, and the problem of labor cost is solved. And the system can accurately calculate the dosage, and the solid medicament is fully dissolved by multiple measures, so that the effluent quality is better ensured, the medicament waste is reduced, and good economic benefits are generated for sewage treatment enterprises.
Drawings
FIG. 1 is a schematic view of the overall structure of an automatic dosing system and a dosing method for railway sewage according to the present invention;
FIG. 2 is a schematic diagram of a top cover structure of an electronic scale for an automatic dosing system and a dosing method for railway sewage according to the present invention;
the labels in the figure are: 1. a first PLC terminal controller, 2, a first control switch, 3, a medicine storage box, 4, a second PLC controller, 5, a second control switch, 6, a medicine storage box top cover, 7, a first pressure sensor, 8, a vibrator, 9, a medicine storage box funnel bottom, 10, a connecting pipe, 11, a grinding machine, 12, a motor, 13, a grinding machine medicine outlet pipe, 14, an electronic scale top cover, 15, a dissolving tank, 16, a third PLC controller, 17, a third control switch, 18, a water inlet pipe, 19, a first electromagnetic control valve, 20, a rotor flow meter, 21, an ultrasonic transducer, 22, an ultrasonic generator, 23, a concentration sensing probe, 24, a U-shaped heating pipe, 25, a temperature sensing probe, 26, a second electromagnetic control valve, 27, a medicine outlet pipe, 28, a medicine feeding pump, 29, a medicine feeding pump pipe, 30, a first sewage monitoring sensing probe, 31, an air flotation tank, 32, a second pressure sensor, 33. the door closer comprises a flange transverse column, 34 magnetic locks, 35 door closers, 36 door closer brackets, 37 supporting transverse columns, 38 angular contact bearings, 39 lower supporting blocks and 40 material hoppers.
Detailed Description
The present invention will be described in detail with reference to specific embodiments.
The invention relates to an automatic dosing system and a dosing method for railway sewage, wherein the system comprises a medicine storage box 3, a grinding machine 11, a dissolving tank 15, a water inlet pipe 18 of the dissolving tank 15, an electronic scale top cover 14 and an air floatation tank 31; the medicine storage box 3 is connected with a grinding machine 11 through a connecting pipe 10, the grinding machine 11 is connected with a dissolving tank 15 through a medicine outlet pipe 13 of the grinding machine, and the dissolving tank 15 is connected into an air floatation tank 31 through a medicine outlet pipe 27; the medicine storage box 3, the grinding machine 11, the dissolving tank 15, the electronic scale top cover 14, the water inlet pipe 18 and the air floatation tank 31 are all provided with sensors and/or actuators which are all connected to the first PLC terminal controller 1.
The medicine storage box 3 is of a tank body structure, the top of the medicine storage box is provided with a top cover 6, and the bottom 9 is funnel-shaped. The grinder 11 is arranged below the bottom 9 of the medicine storage box, and a medicine outlet pipe 13 of the grinder is connected to the top of the dissolving tank 15 through a vertical material hopper 40.
The sensor that sets up on the explosive box 3 is first pressure sensor 7, and the executor that sets up on the explosive box 3 is electromagnetic shaker 8, and first pressure sensor 7 and electromagnetic shaker 8 all insert the second PLC controller 4 that sets up on the explosive box 3, and second PLC controller 4 inserts first PLC terminal control unit 1 again.
The actuator arranged on the grinding machine 11 is a motor 12 and is connected to a second PLC controller 4 arranged on the medicine storage box 3. The grinding machine 11 is welded with the medicine storage box 3 through a connecting pipe. The sensors arranged on the dissolving tank 15 are a second pressure sensor 32, a temperature sensing probe 25 and a concentration sensing probe 23 which are all connected to a third PLC (programmable logic controller) 16 arranged on the drug dissolving tank 15, and the third PLC 16 is connected to the first PLC terminal controller 1; the actuators arranged on the dissolving tank 15 are an ultrasonic transducer 21, an ultrasonic generator 22 and a U-shaped electric heating tube 24 which are all connected to a third PLC controller 16 arranged on the dissolving tank 14, and the third PLC controller 16 is connected to the first PLC terminal controller 1.
A sensor arranged on the top cover 14 of the electronic scale is a second pressure sensor 32, an actuator arranged on the top cover 14 of the electronic scale is a magnetic lock 34, the second pressure sensor 32 is arranged below the top cover 14 of the electronic scale, a door closer 35 is arranged below the top cover 14 of the electronic scale, and the door closer is fixed below the top cover 14 of the electronic scale in a bolt fixing mode; the magnetic lock 34 is arranged above the flange transverse column 33 and is connected with the flange transverse column 33 in a welding mode; the door closing lock bracket 36 is arranged on the supporting transverse column 37 and is connected with the supporting transverse column 37 in a bolt mode; the support cross column 37 is provided with an angular contact bearing 38 and a lower support block 39, and the lower support block 39 and the support cross column 37 are connected by welding. The opening and closing of the electronic scale top cover 14 are mainly realized through the combined action of the door closer 35, the angular contact bearing 38 and the lower support block 39.
The sensor arranged on the water inlet pipe 18 is a rotor flow meter 20, and the actuator arranged on the water inlet pipe 18 is a first electromagnetic control valve 19; the rotor flowmeter 20 and the first electromagnetic control valve 19 are connected to the first PLC terminal controller 1, and the water inlet pipe 18 is connected with a water supply pipe network in a plant.
A second electromagnetic control valve 26 and a dosing pump 28 are arranged on the liquid medicine outlet pipe 27, and the dosing pump 28 is connected to the air floatation tank 31 through a dosing pump pipe 29; the second electromagnetic control valve 26 and the dosing pump 28 are both connected to a third PLC controller 16 arranged on the dissolving tank 15, and the third PLC controller 16 is connected to the first PLC terminal controller 1.
A first sewage monitoring induction probe 30 is arranged on the air floatation tank 31, and the first sewage monitoring induction probe 30 is connected to the first PLC terminal controller 1.
The first PLC terminal controller 1 is provided with a first control switch 2, the second PLC controller 4 is provided with a second control switch 5, and the third PLC controller 16 is provided with a third control switch 17.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in the figure, the first PLC terminal controller 1 is provided with a touch screen, and is used for displaying, setting and modifying parameters of the first PLC terminal controller 1, wherein the main setting parameters include a medicament dissolution temperature, a frequency of the ultrasonic transducer 21, a frequency of the vibrator 8, a threshold of the first pressure sensor 7, a threshold of the second pressure sensor 32, and a data monitoring threshold of the first sewage monitoring sensing probe 30. The first PLC terminal controller 1 is electrically connected with the second PLC controller 4, the third PLC controller 16 and the first sewage monitoring induction probe 30 and is bidirectional information feedback.
The box body of the medicine storage box 3 is cylindrical, a top cover 6 is arranged above the box body, and the bottom of the box body is funnel-shaped; the outer wall of the medicine storage box 3 is provided with a second PLC 4 which is used for receiving information sent by the first PLC terminal controller 1 and can be provided with a first pressure sensor 7 threshold value and a vibrator 8 frequency; the four walls of the bottom of the box body are provided with first pressure sensors 7, and the first pressure sensors 7 are arranged one third away from the bottom of the box body of the medicine storage box 3; a vibrator 8 is arranged at the funnel-shaped bottom part away from the medicine storage box 3, and the vibrator 8, the motor 12, the second PLC 4 and the first PLC terminal controller 1 are electrically connected; the bottom of the container 3 is funnel-shaped and provided with a vibrator 8, the shape and vibration of the bottom of which enables the product to fall quickly into the grinding machine 11.
The grinding machine 11 is welded with the bottom of the hopper of the medicine storage box 5 through a connecting pipe, and a movable fluted disc, a fixed fluted disc and a screen are arranged inside a crushing chamber of the grinding machine 11.
Dissolving tank 15 is cylindrical, and roof central opening department is the rectangle, and roof center department is provided with rectangle material hopper 40, and balance top cap 14 is weighed to the inside electron that is provided with of material hopper 40, and the electron is weighed and is provided with second pressure sensor 32 on the balance top cap, and second pressure sensor 32 passes through electric connection with third PLC controller 16, first PLC terminal controller 1. The outer wall of the dissolving tank 15 is provided with a third PLC controller 16 which is used for receiving the information sent by the first PLC terminal controller 1 and can be provided with the ultrasonic transducer frequency and the medicine dissolving temperature. A water inlet pipe 18 is arranged on one side above the dissolving tank 15, a first electromagnetic control valve 19 and a rotor flow meter 20 are arranged on the water inlet pipe 18, and the rotor flow meter 20, the first electromagnetic control valve 19 and the first PLC terminal controller 1 are electrically connected. The outer wall of the dissolving tank 15 is provided with an ultrasonic generator 22, and the inner wall is provided with a sound exchange transducer 21, so that the full dissolution of the medicament can be promoted; the ultrasonic generator 22, the ultrasonic transducer 21 and the third PLC controller 16 are electrically connected with the first PLC terminal controller 1. The bottom of the dissolving tank 15 is provided with a temperature sensing probe 25 which is used for monitoring the temperature of the water body; the bottom of the dissolving tank 15 is provided with a U-shaped electric heating tube 24 which is used for heating the water body; the temperature sensing probe 25, the U-shaped electric heating tube 24, the third PLC controller 16 and the first PLC terminal controller 1 are electrically connected. The inner wall of the dissolving tank 15 is provided with a concentration sensing probe 23 for measuring the concentration of the liquid medicine in the dissolving tank 15. A medicine outlet pipe 27 is arranged at the bottom of the dissolving tank 15, and a third electromagnetic control valve 26 is arranged at one end of the medicine outlet pipe 27; the other end of the chemical outlet pipe 27 is connected with a chemical feeding pump 28, one end of the chemical feeding pump 28 is provided with a chemical feeding pump pipe 29, the chemical feeding pump pipe 29 is connected with an air floatation tank 31, and the second electromagnetic control valve 26, the concentration sensing probe 23 and the chemical feeding pump 28 are electrically connected with the first PLC terminal controller 1.
The invention relates to a railway sewage dosing control system and a dosing method, which specifically work principle is as follows:
switching on a power supply, and setting related parameters (medicament dissolution temperature, ultrasonic frequency, vibrator frequency, a first pressure sensor threshold value and a second pressure sensor threshold value) on a control screen 1 of a first PLC terminal controller; the first control switch 2 is started, the automatic dosing control system starts to work, the first sewage monitoring induction probe 30 uploads real-time water quality parameters of the air floatation tank 31 to the first PLC terminal controller 1, and when the water quality parameters are abnormally changed, the first PLC terminal controller 1 processes relevant data of water quality monitoring to obtain the concentration of a solution to be added, the quality of a solid medicament and the inflow flow. The first PLC terminal controller 1 feeds back information on the quality of the solid chemical to be added and the like to the second PLC controller 4 of the medicine storage box and the third PLC controller 16 of the medicine dissolving tank at the same time.
The second PLC controller 4 of the medicine storage box receives feedback information of the first PLC terminal controller 1, the second control switch 5 starts to work, the vibrator 8 and the grinding machine 11 start to work, the vibrator 8 can enable medicines to fall into the grinding machine 11 quickly through vibration, and the vibration frequency of the vibrator 9 can be set on the first PLC terminal controller 1. The drug enters the hopper 40 through the grinder outlet tube 13. The material hopper 40 is provided with an electronic scale top cover 14, when the weight reaches a feedback value given by the first PLC terminal controller 1, the second control switch 5 is closed, the medicine storage box 3 and the grinding machine 11 stop working, the electronic scale top cover 14 is opened, the medicine is put into the dissolving tank 15, and the electronic scale top cover 14 is closed. On the explosive box 3, the department of 3 inner walls of explosive box is provided with pressure sensor 7, and when the produced pressure of medicine was less than the threshold value that sets up, first pressure sensor 7 can feed back information to second PLC controller 4, first PLC terminal controller 1, and the warning light of setting on first PLC terminal controller 1 can twinkle, reminds the site management personnel in time to add the medicament.
The solid medicament enters a crushing chamber of the grinding machine 11, and under the action of a motor 12, the movable fluted disc and the fixed fluted disc which run at a high speed inside the crushing chamber move relatively to each other, so that the solid medicament achieves the aim of crushing through the comprehensive actions of tooth impact, shearing, friction, collision among solid particles and the like. The crushed medicament powder is screened by a screen mesh and automatically discharged.
The third PLC controller 16 of the dissolving tank receives the feedback information of the first PLC terminal controller 1, the third control switch 17 starts to work, the first electromagnetic control valve 19 arranged on the water inlet pipe 18 is opened, water is injected into the dissolving tank, the rotor flow meter 20 on the water inlet pipe monitors, and when the flow reaches the feedback value given by the first PLC terminal controller 1, the first electromagnetic control valve 19 is closed. The U-shaped electric heating tube 24 starts to heat, when the water temperature reaches the set temperature, the temperature sensing probe 25 feeds information back to the first PLC terminal controller 1, the U-shaped electric heating tube 24 stops working, and the heating power of the U-shaped heating tube can be adjusted according to the water inflow. The ultrasonic generator 22 works, the ultrasonic transducer 21 converts the ultrasonic into corresponding ultrasonic waves, so that the medicine can be quickly dissolved, and the frequency of the ultrasonic transducer can be adjusted according to the mass of the solid medicine. After the drug is fully dissolved, the concentration sensing probe 23 monitors that the concentration of the solution reaches a feedback value given by the first PLC terminal controller 1, the second electromagnetic control valve 26 arranged on the drug outlet pipe 27 is opened, the drug is delivered into the air floatation tank 31 through the drug feeding pump 28, and when the solution completely flows into the air floatation tank 31, the concentration sensing probe 23 monitors that the concentration is zero, the second electromagnetic control valve 26 is closed, and the drug feeding pump 28 stops working. When the sewage concentration in the floatation tank 31 is lower than the set value, the first sewage monitoring induction probe 30 continues its monitoring function.
The invention also provides a dosing method, which integrates and analyzes the COD, SS and PH data of the air flotation tank in a certain time period according to the past operation experience in the factory to construct an accurate dosing mathematical model. The mathematical model is used for controlling the adding amount of the medicine so as to realize the linkage of the water quality and the adding amount of the medicine.
The method comprises the steps of comparing COD (chemical oxygen demand), SS (suspended solid) and PH (potential of hydrogen) data of an air flotation tank in a certain period of time with set thresholds of monitoring parameters according to real-time data fed back by a sewage sensing probe in the period of time to obtain the minimum value and the maximum value of each monitoring parameter in the period of time, taking the minimum value and the maximum value as basic data, calculating the required concentration range of liquid medicine according to an accurate dosing model, taking the average value of the concentration range, calculating the mass and the volume of inlet water, feeding information back to a second PLC (programmable logic controller) and a third PLC (programmable logic controller), and automatically adjusting the frequency of an ultrasonic transducer arranged on a dissolving tank according to; the U-shaped heating pipe can automatically adjust the heating power according to the water inflow, so as to ensure that the solid medicament is fully dissolved in a short time; the medicine feeding pump automatically adjusts the flow rate of the medicine feeding pump, and accurate medicine feeding is guaranteed.
The invention is not limited to the examples, and any equivalent changes to the technical solution of the invention by a person skilled in the art after reading the description of the invention are covered by the claims of the invention.
Claims (9)
1. Railway sewage automatic reagent feeding system, its characterized in that:
the system comprises a medicine storage box (3), a grinding machine (11), a dissolving tank (15), a water inlet pipe (18) of the dissolving tank (15), an electronic scale top cover (14) and an air floatation tank (31);
the medicine storage box (3) is connected with a grinding machine (11) through a connecting pipe (10), the grinding machine (11) is connected with a dissolving tank (15) through a medicine outlet pipe (13) of the grinding machine, and the dissolving tank (15) is connected into an air floatation tank (31) through a medicine outlet water pipe (27); the medicine storage box (3), the grinding machine (11), the dissolving tank (15), the electronic scale top cover (14) and the water inlet pipe (18) thereof and the air floatation tank (31) are all provided with sensors and/or actuators which are all connected to the first PLC terminal controller (1);
the sensor sends induction parameters to the first PLC terminal controller (1), and the first PLC terminal controller (1) gives an alarm through comparison with a preset threshold value and controls the actuator to operate.
2. The railway sewage automatic dosing system of claim 1, wherein:
the medicine storage box (3) is of a tank body structure, the top of the medicine storage box is provided with a top cover (6) of the medicine storage box, and the bottom of the medicine storage box is funnel-shaped;
the grinder (11) is arranged below the bottom (9) of the medicine storage box funnel, and a medicine outlet pipe (13) of the grinder is connected to the top of the dissolving tank (15) through a vertical material hopper (40).
3. The railway sewage automatic dosing system of claim 2, wherein:
the sensor that sets up on explosive box (3) is first pressure sensor (7), and the executor that sets up on explosive box (3) is electromagnetic shaker (8), and second PLC controller (4) that set up on first pressure sensor (7) and electromagnetic shaker (8) all insert explosive box (3), and second PLC controller (4) insert first PLC terminal control ware (1) again.
4. The railway sewage automatic dosing system of claim 3, wherein:
an actuator arranged on the grinding machine (11) is a motor (12) and is connected to a second PLC (programmable logic controller) arranged on the medicine storage box (3); the grinding machine (11) is welded with the medicine storage box (3) through a connecting pipe;
the sensors arranged on the dissolving tank (15) are a second pressure sensor (32), a temperature sensing probe (25) and a concentration sensing probe (23) which are all connected to a third PLC (programmable logic controller) arranged on the drug dissolving tank (15), and the third PLC (16) is connected to the first PLC terminal controller (1);
the actuators arranged on the dissolving tank (15) are an ultrasonic transducer (21), an ultrasonic generator (22) and a U-shaped electric heating tube (24) which are all connected into a third PLC (programmable logic controller) arranged on the dissolving tank (14), and the third PLC (16) is connected into a first PLC terminal controller (1).
5. The railway sewage automatic dosing system of claim 4, wherein:
a sensor arranged on the top cover (14) of the electronic scale is a second pressure sensor (32), an actuator arranged on the top cover (14) of the electronic scale is a magnetic lock (34), the second pressure sensor (32) is arranged below the top cover (14) of the electronic scale, a door closer (35) is arranged below the top cover (14) of the electronic scale, and the door closer and the bottom cover (14) of the electronic scale are fixed by bolts;
the magnetic lock (34) is arranged above the flange transverse column (33), and the connection mode of the magnetic lock and the flange transverse column (33) is welding; the door closing lock bracket (36) is arranged on the supporting transverse column (37), and is connected with the supporting transverse column (37) in a bolt manner; an angular contact bearing (38) and a lower support block (39) are arranged on the support transverse column (37), and the lower support block (39) is connected with the support transverse column (37) in a welding mode;
the opening and closing of the electronic scale top cover (14) are mainly realized through the combined action of a door closer (35), an angular contact bearing (38) and a lower support block (39).
6. The railway sewage automatic dosing system of claim 5, wherein:
the sensor arranged on the water inlet pipe (18) is a rotor flow meter (20), and the actuator arranged on the water inlet pipe (18) is a first electromagnetic control valve (19); the rotor flowmeter (20) and the first electromagnetic control valve (19) are connected into a first PLC terminal controller (1), and the water inlet pipe (18) is connected with a water supply pipe network in a plant.
7. The railway sewage automatic dosing system of claim 6, wherein:
a second electromagnetic control valve (26) and a dosing pump (28) are arranged on the liquid medicine outlet pipe (27), and the dosing pump (28) is connected into the air floatation tank (31) through a dosing pump pipe (29); the second electromagnetic control valve (26) and the dosing pump (28) are both connected to a third PLC controller (16) arranged on the dissolving tank (15), and the third PLC controller (16) is connected to the first PLC terminal controller (1).
8. The railway sewage automatic dosing system of claim 7, wherein:
a first sewage monitoring induction probe (30) is arranged on the air floatation tank (31), and the first sewage monitoring induction probe (30) is connected into a first PLC terminal controller (1).
9. The dosing method of the railway sewage automatic dosing system is characterized by comprising the following steps:
the first PLC terminal controller (1) has the functions of displaying, setting and modifying parameters, wherein the set parameters comprise medicament dissolution temperature, ultrasonic transducer (21) frequency, vibrator (8) frequency, first pressure sensor (7) threshold value, second pressure sensor (32) threshold value and first sewage monitoring induction probe (30) data monitoring threshold value;
the first PLC terminal controller (1) is electrically connected with the second PLC controller (4), the third PLC controller (16) and the first sewage monitoring induction probe (30) and is bidirectional information feedback.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011562867.8A CN112723514A (en) | 2020-12-25 | 2020-12-25 | Automatic dosing system and dosing method for railway sewage |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011562867.8A CN112723514A (en) | 2020-12-25 | 2020-12-25 | Automatic dosing system and dosing method for railway sewage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113906989A (en) * | 2021-09-18 | 2022-01-11 | 中铁第一勘察设计院集团有限公司 | Intelligent irrigation system for greening landscape of subway vehicle base |
| CN114047228A (en) * | 2021-11-09 | 2022-02-15 | 同济大学 | Device and method for analyzing sediment oxygen-consuming pollutants |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2241539A1 (en) * | 1997-07-18 | 1999-01-18 | Wallace Wong-Fong Leung | Method and apparatus for controlling vertical and horizontal basket centrifuges |
| JP2009050754A (en) * | 2007-08-23 | 2009-03-12 | Nishihara Environment Technology Inc | Sludge dehydration apparatus |
| CN201470161U (en) * | 2009-07-30 | 2010-05-19 | 煤炭科学研究总院杭州环境保护研究所 | Mine water purifying treatment automatic dosing device |
| CN105110389A (en) * | 2015-08-18 | 2015-12-02 | 铜陵海陵环保科技有限责任公司 | Automatic metering and dosing apparatus for sewage treatment |
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
| CN211754168U (en) * | 2019-09-23 | 2020-10-27 | 鞍钢股份有限公司 | Mud pressing automatic dosing system of wet dust removal system |
| CN112062241A (en) * | 2020-08-24 | 2020-12-11 | 肖文云 | Dosing device capable of accurately controlling dosing amount and dosing method |
-
2020
- 2020-12-25 CN CN202011562867.8A patent/CN112723514A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2241539A1 (en) * | 1997-07-18 | 1999-01-18 | Wallace Wong-Fong Leung | Method and apparatus for controlling vertical and horizontal basket centrifuges |
| JP2009050754A (en) * | 2007-08-23 | 2009-03-12 | Nishihara Environment Technology Inc | Sludge dehydration apparatus |
| CN201470161U (en) * | 2009-07-30 | 2010-05-19 | 煤炭科学研究总院杭州环境保护研究所 | Mine water purifying treatment automatic dosing device |
| CN105110389A (en) * | 2015-08-18 | 2015-12-02 | 铜陵海陵环保科技有限责任公司 | Automatic metering and dosing apparatus for sewage treatment |
| CN211754168U (en) * | 2019-09-23 | 2020-10-27 | 鞍钢股份有限公司 | Mud pressing automatic dosing system of wet dust removal system |
| CN110652883A (en) * | 2019-09-25 | 2020-01-07 | 金科环境股份有限公司 | Safety regulation and control system and method for adding reverse osmosis scale inhibitor |
| CN112062241A (en) * | 2020-08-24 | 2020-12-11 | 肖文云 | Dosing device capable of accurately controlling dosing amount and dosing method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113906989A (en) * | 2021-09-18 | 2022-01-11 | 中铁第一勘察设计院集团有限公司 | Intelligent irrigation system for greening landscape of subway vehicle base |
| CN114047228A (en) * | 2021-11-09 | 2022-02-15 | 同济大学 | Device and method for analyzing sediment oxygen-consuming pollutants |
| CN114047228B (en) * | 2021-11-09 | 2023-08-04 | 同济大学 | Device and method for analyzing oxygen-consuming pollutants of sediment |
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Application publication date: 20210430 |