CN211636052U - Automatic detection and proportioning device for concentration of mining emulsion - Google Patents
Automatic detection and proportioning device for concentration of mining emulsion Download PDFInfo
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- CN211636052U CN211636052U CN201921469400.1U CN201921469400U CN211636052U CN 211636052 U CN211636052 U CN 211636052U CN 201921469400 U CN201921469400 U CN 201921469400U CN 211636052 U CN211636052 U CN 211636052U
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Abstract
The patent of the utility model relates to a mining emulsion concentration automated inspection and proportioning device, including joining in marriage liquid water route, emulsion oil circuit, emulsion way and signal line. The emulsification waterway is connected with a pressure water source and the mixing emulsification device, and the proportion of water entering the mixing emulsification device is monitored and controlled in real time; the emulsifying oil way is connected with the emulsifying oil tank and the mixing emulsifying device, and the oil proportion entering the mixing emulsifying device is monitored and controlled in real time; the emulsification mixing device is connected with the emulsification water path and the emulsification oil path, and fully mixes water and emulsified oil entering the emulsification mixing device. The signal line carries out real-time monitoring and feedback correction on the concentration set by the emulsion water path, the emulsion oil path and the emulsion mixing device. The utility model relates to a mining emulsion concentration automated inspection and proportioning device combines together the automatic ratio and the concentration detection of emulsion, can carry out automatic correction according to the detected value, has characteristics such as the ratio is accurate, convenient operation.
Description
Technical Field
The utility model relates to a mining emulsion concentration automated inspection and proportioning device specifically are a concentration automated inspection and proportioning device based on mining emulsion pump station.
Background
The emulsion pump station is one of important corollary equipment of the coal mine fully mechanized working face, mainly provides the power source for the pushing of the hydraulic support and the scraper conveyor of the coal mining working face, and the power transmission mode is realized through the emulsion. The emulsion is a completely mixed liquid prepared by filtered water and emulsified oil according to a certain proportion, and the content of the emulsified oil has a great relationship with the service life of the used equipment. The emulsified oil content is high, which is beneficial to prolonging the service life of equipment, but the cost of the emulsified liquid is increased; the low content of emulsified oil affects the service life of the equipment. China 'coal mine safety regulations' stipulate: the concentration of the emulsion of the hydraulic support adopted by the fully mechanized mining face is 5% and not less than 4%. The concentration of the emulsion of the single hydraulic prop adopted by the high-grade common mining working face is not lower than 3%. Therefore, determining the concentration of the emulsion has important application value.
At present, concentration proportioning of coal mine underground emulsion is mostly manually carried out by field workers. Because the concentration is suddenly high and suddenly low, the waste of the emulsion is caused. With the development of scientific technology and the continuous improvement of the automation degree of production, the automation of industrial production equipment and the continuous improvement of the integration degree, the automatic liquid preparation system of the emulsion can be realized by applying PLC control and PID operation, so that the concentration of the emulsion is kept in a required concentration range in real time.
The utility model provides a reliable practical mining emulsion concentration automated inspection and proportioning device has overcome the shortcoming of current ratio mode and detection method to guaranteed the quality of emulsion, alleviateed relevant personnel's intensity of labour, improved the automation level of colliery underground emulsion pump station.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a mining emulsion concentration automated inspection and proportioning device to it is numerous and diverse to solve the operation, and the ratio receives water pressure to influence great, and concentration stability is poor, needs artifical periodic calibration scheduling problem.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a mining emulsion concentration automated inspection and proportioning device, includes liquid water route, emulsion oil circuit, emulsion way and signal line. One end of the emulsifying water path is connected with a pressure water source through a pipeline, and the other end of the emulsifying water path is connected with the mixing and emulsifying device and a signal line, so that the water proportion entering the mixing and emulsifying device is monitored and controlled in real time; one end of the emulsifying oil path is connected with the emulsifying oil tank, the other end of the emulsifying oil path is connected with the mixing and emulsifying device and is connected with the signal line, and the oil proportion entering the mixing and emulsifying device is monitored and controlled in real time; emulsification mixing arrangement one end is connected with emulsification water route and emulsification oil circuit respectively, carries out the intensive mixing to the water and the emulsified oil that get into emulsification mixing arrangement, and the other end is connected through emulsion way and emulsion case, and is connected with signal line. The signal line carries out real-time monitoring and feedback correction on the concentration set by the emulsion water path, the emulsion oil path and the emulsion mixing device.
As a further aspect of the present invention: the proportioning control system consists of a controller, a display screen, a bus isolator, a signal collector, a switching power supply, an intrinsic safety power supply and an intrinsic safety keyboard, and can send control signals to the combined switch box to realize the control of each pump and each motor.
As a further aspect of the present invention: the detection box consists of an emulsion concentration sensor, an emulsion PH value sensor, an emulsion conductivity sensor and an emulsion high-low liquid level sensor, can monitor information such as emulsion concentration, a PH value, conductivity and liquid level height in the emulsion box in real time, and transmits acquired signals to the proportioning control system for real-time control.
As a further aspect of the present invention: the emulsion concentration sensor is arranged in a detection box in the emulsion box, and the high-low liquid level sensor is arranged in the emulsion box and used for collecting the liquid level and concentration information of the emulsion by the proportioning device control system; the electromagnetic water valve is arranged between the pressure water source and the hydraulic motor and used for controlling the on-off of a water path for preparing the emulsion.
As a further aspect of the present invention: the emulsion proportioning device is provided with a low liquid level sensor and a low oil level sensor, has an air suction prevention protection function, and realizes automatic shutdown locking and display when the liquid level of the emulsion tank reaches a set minimum liquid level.
As a further aspect of the present invention: the emulsion proportioning device has a pipe explosion detection function, and when the pressure of the main pipe is lower than a set value and the delay time exceeds the set value, the pump station proportioning control system should be stopped emergently and give an alarm.
As a further aspect of the present invention: the emulsion proportioning device has the function of automatically preparing and supplementing the emulsion, and can dynamically compensate the emulsion in the emulsion tank according to the liquid level state in the emulsion tank.
As a further aspect of the present invention: the emulsion proportioning device has complete protection to the emulsified oil tank and the emulsion tank, and the emulsion pump station has low protection to the pressure of lubricating oil, over-temperature protection to the lubricating oil, over-low protection to the pressure of a liquid suction port, over-temperature protection to the emulsion tank, low protection to the oil level of the emulsified oil and low protection to the liquid level of the emulsified liquid.
The utility model can realize the online detection and automatic proportioning of the concentration of the emulsion; during the use process, the automatic emulsion concentration detection and proportioning device can accurately and automatically detect and proportion the emulsion concentration according to the set emulsion concentration value, when the liquid level in the emulsion tank is reduced to the set low liquid level, the liquid level sensor sends a liquid supplementing signal to the proportioning control system, after the proportioning control system receives the signal, the water inlet solenoid valve in the proportioning device is opened to start water supplementation to the emulsion tank, the circulating pump is opened at the same time, after the comparison calculation is carried out according to the detection value of the water quantity provided by the water supply valve and the set value of the emulsion concentration, the rotating speed of the oil pump is adjusted through the frequency converter, the water flow and the oil flow are automatically controlled, the concentration of the emulsion is detected in real time, after the electric cabinet receives the concentration signal, if the concentration is lower than the set low concentration value, a starting signal is sent to the proportioning pump, the proportioning pump is started to supplement the oil to the emulsion tank, and then, continuously detecting the concentration until the concentration of the emulsion tank reaches a set concentration value, automatically displaying the concentration value of the prepared liquid in real time, and realizing the target of real-time liquid supplement requirement according to the liquid supply requirement of the system through feedback and correction.
Compared with the prior art, the utility model discloses degree of automation is high, has that ratio is accurate, convenient operation, concentration can be adjusted at 3% ~ 7% within range, still can carry out automatic correction according to the detected value, makes concentration keep at the certain limit to reduce manual operation, reduced the degree of difficulty of emulsion concentration ratio, need not to consume extra power, it is energy-conserving effectual.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art are briefly introduced below. The drawings are merely some embodiments of the invention.
Fig. 1 is a working principle diagram of a mining emulsion concentration automatic detection and proportioning device.
Wherein: 1. the system comprises a pressure water source 2.1 electromagnetic directional valve, a 3.1 throttle valve, a 4.1 filter, a 5 hydraulic motor, a pressure monitor 7.2 electromagnetic directional valve, a 8 mixed emulsifying device 9, a water storage tank 10, an air filter 11.2 filter, a 12.2 throttle valve, a 13 hydraulic oil pump 143 electromagnetic directional valve, a 15.3 throttle valve, a 16 one-way valve, a 17 transmission mechanism 18, a 19 circulating pump, a 20 concentration sensor, a 21 pH sensor, a 22 conductivity sensor, a 23 high liquid level sensor, a 24 low liquid level sensor, a 25 high oil level sensor, a 26 low oil level sensor, a 27 emulsifying oil tank and an emulsion tank.
Fig. 2 is a control schematic diagram of an automatic emulsion concentration detection and proportioning device.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
Fig. 1 is the utility model provides a mining emulsion concentration automated inspection and proportioning device's theory of operation: a pressure water source in the underground coal mine drives a hydraulic motor 5 to rotate through a No. 1 electromagnetic directional valve 2, a No. 1 throttling valve 3 and a No. 1 filter 4, the hydraulic motor 5 enables the pressurized water source to flow into a No. 2 electromagnetic directional valve 7 and then enters an emulsion mixing and emulsifying device, the hydraulic motor 5 in a liquid preparation water path drives a hydraulic oil pump 13 to rotate through a transmission mechanism 17, and emulsified oil in an emulsified oil tank 26 is extracted through a No. 2 filter 11 and a No. 2 throttling valve 12. Emulsified oil flows to a No. 3 throttling valve 15 and a one-way valve 16 after passing through a No. 3 electromagnetic directional valve 14 under the action of a hydraulic oil pump 13, then enters a mixing and emulsifying device through an inlet of the mixing and emulsifying device 8 to be fully mixed with water discharged by a hydraulic motor 5, forms emulsion with certain concentration after being mixed by the mixing and emulsifying device, and enters an emulsion tank. The emulsion concentration sensor 19, the pH value sensor 20 and the conductivity sensor 21 are respectively installed in a detection box of the emulsion box, the emulsion is pumped to the detection box through the circulating pump 18 for detecting the concentration, the pH value and the conductivity of the emulsion in real time, and the detection value is compared with the set value under the control of the proportioning control system. If the detection value is within the given value range, indicating that the concentration of the emulsion meets the requirement, keeping the water inflow and the oil inflow unchanged, continuously detecting signals by the proportioning control system, and simultaneously displaying the detected online concentration value; if the concentration is more than 5%, the system gives an alarm, a No. 3 electromagnetic directional valve 14 is switched on, oil inlet is stopped, the concentration of the emulsion is reduced, and the detected online concentration value is displayed; if the concentration is less than 3%, the system gives an alarm, the No. 2 electromagnetic directional valve 7 is switched on, the water inflow of the liquid preparation device is reduced, the concentration of the emulsion is improved, and the detected online concentration value is displayed.
The device also carries out automatic detection to the height liquid level of emulsion case and the height oil level of emulsion oil tank to avoid hydraulic oil pump to empty and emulsion stock too much or too little. When the emulsion in the emulsion tank reaches a high liquid level or the emulsified oil in the emulsified oil tank is used to a low oil level, the system alarms, the liquid crystal display displays alarm information, the high liquid level sensor 22 or the low oil level sensor 25 sends out an electric signal, the proportioning control system receives the signal, the No. 1 electromagnetic directional valve 2 is powered on, the hydraulic motor 5 and the hydraulic oil pump 13 stop working, and the proportioning work of the emulsion stops. When the emulsion is used to the low liquid level, the low liquid level switch 23 or the high oil level sensor 24 sends an electric signal, the proportioning control receives the signal, the No. 1 electromagnetic directional valve 2 is powered off, the hydraulic motor 5 and the hydraulic oil pump 13 start to work, the emulsion proportioning work starts, and the emulsion is supplemented into the emulsion tank. The check valve 16 prevents the dispensing water or emulsion from flowing back into the emulsion tank 26. In addition, the system is also connected with a temperature sensor, so that the temperature of the emulsion discharged from the pump station can be displayed in real time, and the working condition parameters of the pump station are dynamically monitored in real time.
When liquid is prepared, the proportioning control system controls the opening of the electromagnetic valve and the hydraulic oil pump according to the liquid level height in the emulsion tank, the emulsion in the emulsion tank is extracted by the circulating pump to carry out real-time concentration detection, and the opening time of the oil pump is automatically controlled, so that the concentration value set by a user is reached, the concentration of the emulsion is monitored on line in real time, and the accurate liquid preparation is automatically regulated by real-time closed-loop feedback.
The utility model discloses a theory of operation is: the mixing and emulsifying device fully mixes and emulsifies oil and water and then sends the oil and water into the emulsion tank. The automatic proportioning device is also provided with a throttle valve and a filter on a pipeline in front of the hydraulic motor, and the throttle valve and the filter are used for filtering water entering the mixing and emulsifying device and adjusting the flow. The mixing and emulsifying device has the advantages of simple structure, stable and accurate proportioning and convenient use, and is a practical mixing and emulsifying device.
Fig. 2 shows the control principle of the automatic detection and proportioning device for the mining emulsion. The system collects the information of the concentration, the PH value, the conductivity, the emulsified oil level, the emulsified liquid level and the like of the emulsified liquid, and controls the start and stop of a hydraulic oil pump motor, a circulating pump motor, an electromagnetic water valve and a hydraulic motor according to the parameter setting value set by a user after processing, so that the real-time liquid supplement of the emulsified liquid tank is ensured. The system realizes automatic detection and proportioning of the concentration of the emulsion and simultaneously realizes monitoring of working condition parameters such as the temperature, the liquid level and the oil level of the emulsion. The traditional emulsion proportioning mixing and concentration detection device adopts an open-loop working mode, and the device adopts a closed-loop working mode. The device has the other characteristic of better real-time performance, and the response capability of the system can be greatly improved by reasonably selecting the specification and the model of the electromagnetic valve, the quantitative motor, the transmission mechanism, the oil suction pump and the pipeline.
The core equipment of the automatic detection device for the emulsion concentration is an emulsion concentration sensor, and by utilizing the principle of optical refraction, a boundary shadow line of a bright area and a dark area is generated by refraction of a refractometer, and after the detection of a digital CCD camera, the emulsion concentration value is automatically converted into a digital emulsion concentration value according to the multiplication of different emulsified oil products by corresponding refraction coefficients. The emulsion concentration sensor can automatically compensate and correct according to the temperature under the support of software, and can accurately detect the concentration of the emulsion; because the emulsion to be detected circularly flows, the sensor does not need to be cleaned frequently. The emulsified oil is stored in the emulsified oil tank for the use of the preparation liquid. When the liquid needs to be prepared, a liquid preparation waterway in the mixing and emulsifying device is started to start water inflow, the concentration of the emulsion is detected in real time on line, so that the starting time of a hydraulic oil pump is calculated, and then the working time of a motor of the mixing and emulsifying device is controlled to reach a set concentration value. The emulsion concentration on-line detection detects the emulsion concentration in the emulsion tank in real time in a circulating mode by starting a circulating pump. The detected concentration is transmitted to a proportioning control system in a current signal mode, and the proportioning control system controls the concentration of the emulsion to reach the set concentration.
According to the concentration detection method, manual control is replaced by a controller, human eye observation is replaced by photoelectric detection device detection, and online measurement is realized through reasonable structural design. The measuring device consists of four parts, namely a light source, a light path, a photoelectric detection device and a measurement conditioning circuit. The light source provides light for photoelectric measurement; the detected liquid (emulsion) modulates the optical path; the photoelectric detection device detects the emergent light of the light path (modulated by the detected liquid) and converts the emergent light into a weak electric signal; the measurement conditioning circuit simply amplifies weak signals of the photoelectric device, and sends processed easily-measured electric signals to the proportioning control system for processing to obtain a measurement result.
The control mode of the system can be divided into a manual mode and an automatic mode. For the automatic emulsion concentration proportioning in the manual mode, the starting and stopping of the electromagnetic water valve, the hydraulic oil pump motor and the circulating pump motor can be controlled through the keyboard. When liquid needs to be replenished, the electromagnetic water valve is manually opened to replenish water into the mixing and emulsifying device, the circulating pump motor is started to detect the concentration of the emulsion in real time, and if the concentration is lower than a set value, the hydraulic oil pump motor is opened to replenish oil until the concentration meets the specified requirement. Under the automatic mode, when detecting that the emulsion level is low excessively, open the electromagnetism water valve automatically and carry out the fluid infusion, open the circulating pump automatically simultaneously and carry out emulsion concentration detection to open hydraulic oil pump and carry out the oil supplementation control, reach the concentration requirement.
The technical parameters of the automatic detection and proportioning device for the mining emulsion are as follows: the range of the proportioning concentration is as follows: 3-7% (adjustable); proportioning capability: 300L/min; working pressure: 1.2 MPa; supply voltage: 1140V; and (4) control functions: automatic control; and (3) measuring precision: plus or minus 0.5 percent; water supply pressure: not less than 0.5 MPa; explosion-proof type: exd [ ib ] I; oil pumping flow: 50L/min; motor power: 3 kW; rated pressure: 2.5 MPa; rated rotation speed: 1450 r/min; weight: 20 kg.
In order to meet the explosion-proof requirement, the front channel of the emulsion automatic detection and proportioning device selects a concentration, pressure and liquid level transmitter with an explosion-proof function, and the back channel selects an explosion-proof electromagnetic valve special for a coal mine. The power panel, the control circuit board and the liquid crystal display are all required to be subjected to waterproof treatment and coated with waterproof paint. The side wall of the box body is provided with an interface mounting hole, and an explosion-proof interface is arranged in the hole. The design cost of the system control circuit is safe, the display device is intrinsically safe, and the interior of the display device is subjected to waterproof and shockproof treatment. The host machine protective performance needs to reach IP65, the whole device shell is formed by welding thick steel plates, and the surface needs to be subjected to phosphating treatment.
Claims (6)
1. The utility model provides a mining emulsion concentration automated inspection and proportioning device, its characterized in that, including the batch oil tank, the proportioning control system, hydraulic oil pump, the circulating pump, emulsification mixing arrangement, main spare parts such as emulsion case and detection case constitute, when joining in marriage the liquid, the automatic proportioning control system controls the opening of hydraulic motor and hydraulic oil pump according to the liquid level height sensor in the emulsion case, be equipped with emulsion concentration sensor, PH value sensor, conductivity sensor in the emulsion case, draw the emulsion in the emulsion case to the detection case through the circulating pump and detect, can real-time on-line monitoring emulsion concentration, pH and conductivity, the opening time of automatic control hydraulic oil pump, thereby make the emulsion reach the concentration value of settlement, realize the accurate joining in marriage of closed-loop feedback automatic adjustment.
2. The automatic detection and proportioning device for the concentration of the mining emulsion according to claim 1, wherein the hydraulic motor or the hydraulic oil pump is automatically controlled by a proportioning control system according to signals of an oil-water ratio, a high-low liquid level sensor, an oil tank high-low oil level sensor and the like which need to be supplemented.
3. The automatic detection and proportioning device for the concentration of the emulsion for the mine according to claim 1, wherein the automatic detection and proportioning device for the concentration of the emulsion is matched with a temperature sensor, so that the temperature of the emulsion at the outlet of the emulsion emulsification mixing device can be displayed in real time, and the working condition parameters of the pump station can be dynamically monitored in real time.
4. The automatic detection and proportioning device of the concentration of the emulsion for mine according to claim 1, wherein when the emulsion reaches a high liquid level or the emulsified oil reaches a low oil level, the proportioning control system automatically controls to supplement the liquid or the oil.
5. The automatic detection and proportioning device for the concentration of the emulsion for the mine according to claim 1, wherein an emulsion concentration sensor is arranged in a detection box in an emulsion box, detects the concentration of the emulsion in real time, compares the detected value with a preset value, and further corrects the proportioning precision of a proportioning control system.
6. The automatic detection and proportioning device for the concentration of the mining emulsion according to claim 1, wherein a high-low liquid level sensor is installed in the emulsion tank and used for a proportioning control system to acquire and process liquid level information in the emulsion tank in real time.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113828178A (en) * | 2021-10-18 | 2021-12-24 | 北京格洛博机械设备有限公司 | Intelligent emulsion preparation system |
CN114432952A (en) * | 2022-02-15 | 2022-05-06 | 宝钢湛江钢铁有限公司 | Automatic leveling liquid concentration control method |
CN114849572A (en) * | 2022-06-16 | 2022-08-05 | 湖南秋立制药设备有限公司 | Liquid preparation system capable of monitoring and adjusting proportion amount |
-
2019
- 2019-09-05 CN CN201921469400.1U patent/CN211636052U/en not_active Expired - Fee Related
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN113828178A (en) * | 2021-10-18 | 2021-12-24 | 北京格洛博机械设备有限公司 | Intelligent emulsion preparation system |
CN114432952A (en) * | 2022-02-15 | 2022-05-06 | 宝钢湛江钢铁有限公司 | Automatic leveling liquid concentration control method |
CN114849572A (en) * | 2022-06-16 | 2022-08-05 | 湖南秋立制药设备有限公司 | Liquid preparation system capable of monitoring and adjusting proportion amount |
CN114849572B (en) * | 2022-06-16 | 2024-03-08 | 湖南秋立制药设备有限公司 | Liquid preparation system capable of monitoring and adjusting proportioning quantity |
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