阅读说明：本技术 一种选煤滤液液位控制装置及其方法 (Coal dressing filtrate liquid level control device and method thereof ) 是由 杨杰 谢彪 扣红卫 刘法允 阮磊 于 2020-05-12 设计创作，主要内容包括：本发明公开了一种选煤滤液液位控制装置,包括煤泥过滤装置、滤液池侧壁顶端设置的最高液位检测装置和侧壁底端设置的最低液位检测装置,滤液池顶部设置有转排泵、滤液泵、报警装置和可编程逻辑控制器,转排泵的输入端设置伸入滤液池底部的管道,输出端设置与其管道连接的溢出池,滤液泵的输入端设置管道与煤泥过滤装置的输出端连接,输出端设置伸入滤液池底部的管道,最低液位检测装置、最高液位检测装置、转排泵、滤液泵和报警装置分别与可编程逻辑控制器电性连接,本发明的有益效果是：实现水泵自动控制,提高了自动化程度,精减了岗位,优化人力资源,避免了启停不及时造车水泵空转,降低电耗,声光报警器及时报警,避免了安全隐患。(The invention discloses a coal dressing filtrate liquid level control device, which comprises a coal slime filtering device, a highest liquid level detection device arranged at the top end of the side wall of a filtering pool and a lowest liquid level detection device arranged at the bottom end of the side wall, wherein a rotary discharge pump, a filtrate pump, an alarm device and a programmable logic controller are arranged at the top of the filtering pool, a pipeline extending into the bottom of the filtering pool is arranged at the input end of the rotary discharge pump, an overflow pool connected with the pipeline is arranged at the output end of the rotary discharge pump, a pipeline connected with the output end of the coal slime filtering device is arranged at the input end of the filtrate pump, a pipeline extending into the bottom of the filtering pool is arranged at the output end of the filtrate pump, and the lowest liquid level detection device, the highest liquid level detection device, the rotary discharge pump, the filtrate pump and the alarm device are: realize water pump automatic control, improved degree of automation, the position has been subtracted to the essence, optimizes manpower resources, has avoided opening and stops in time to make car water pump idle running, reduces the power consumption, and audible-visual annunciator in time reports to the police, has avoided the potential safety hazard.)

1. The utility model provides a coal dressing filtrating liquid level control device which characterized in that: including coal slime filter equipment, the highest liquid level detection device that the lateral wall top of filtrating pool set up and the minimum liquid level detection device that the lateral wall bottom set up, filtrating pool top is provided with changes row pump, the filtrate pump, alarm device and programmable logic controller, the input that changes row pump sets up the pipeline that stretches into filtrating pool bottom, the output sets up the pond that overflows rather than pipe connection, the input of filtrate pump sets up the pipeline and is connected with coal slime filter equipment's output, the output sets up the pipeline that stretches into filtrating pool bottom, wherein programmable logic controller is provided with a plurality of correspondences and connects in minimum liquid level detection device, highest liquid level detection device, change row pump, filtrate pump and alarm device's signal output part and output control signal.

2. The coal dressing filtrate liquid level control device of claim 1, wherein: the coal slime filtering device is set as a coal slime filter press, and the output end of the coal slime filter press is connected with the input end pipeline of the filtrate pump.

3. The coal dressing filtrate liquid level control device of claim 1, wherein: the highest liquid level detection device comprises a first sensor which is electrically connected with the programmable logic controller.

4. The coal dressing filtrate liquid level control device of claim 1, wherein: the lowest liquid level detection device comprises a second sensor which is electrically connected with the programmable logic controller.

5. The coal dressing filtrate liquid level control device of claim 1, wherein: pipeline between coal slime pressure filter and the filtrate pump sets up first solenoid valve, the input of first solenoid valve and the output end pipe connection of coal slime pressure filter, the input pipe connection of output and filtrate pump, wherein, first solenoid valve and programmable logic controller electric connection.

6. The coal dressing filtrate liquid level control device of claim 1, wherein: the pipeline that stretches into filtrate pond bottom that changes row pump input end setting sets up the second solenoid valve, the output of second solenoid valve and the input pipe connection who changes row pump, wherein, second solenoid valve and programmable logic controller electric connection.

7. The coal dressing filtrate liquid level control device of claim 1, wherein: the alarm device comprises an audible and visual alarm which is electrically connected with the programmable logic controller.

8. A coal dressing filtrate liquid level control method comprising the coal dressing filtrate liquid level control apparatus according to any one of claims 1 to 7, characterized by comprising the steps of:

s1, when the first sensor and the second sensor respectively sense the liquid level of the filtrate tank, the liquid level information is transmitted to the programmable logic controller through an electric signal, when the first sensor has an electric signal and the second sensor has no electric signal, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be opened, coal dressing filtrate generated by the coal slime filter press is transferred to the filtrate tank through the first electromagnetic valve and the filtrate pump, when the first sensor has an electric signal and the second sensor has an electric signal, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be closed, filtrate is stopped to enter the filtrate tank, the second electromagnetic valve is controlled to be opened, the filtrate enters the overflow tank through the second electromagnetic valve and the rotary discharge pump, and the filtrate is prevented from overflowing the filtrate tank.

And S2, when no electric signal is transmitted to the programmable logic controller by the first sensor and the electric signal is transmitted to the programmable logic controller by the second sensor, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be closed, controls the second electromagnetic valve and the audible and visual alarm to be opened, and gives an alarm by the audible and visual alarm.

Technical Field

The invention belongs to the technical field of coal mining, and particularly relates to a coal dressing filtrate liquid level control device and a coal dressing filtrate liquid level control method.

Background

The water pump post is established more to the filtrate pump in the filter-pressing workshop of the coal preparation factory in most colliery now, not only need observe filtrating water level in the filtrate pond, still need adopt the manual work of opening according to the water level height and stop the work of filtrate pump, still need control the filtrate pump according to the liquid level height in the filtrate pond when controlling the pressure filter pan feeding and unloading normal work, it is inconvenient to lead to the long-range operation of monitoring distance, cause the filtrate pump often to be in the state that the supervision is not in place, when the filtrate pond liquid level is lower, can not in time turn on the pump, the filtrate pump is vacant, when the filtrate pond liquid level is higher, can not in time close the filtrate pump, make the filtrating spill over, harm the filtrate pump, cause electric power energy consumption height.

Disclosure of Invention

The invention aims to provide a coal dressing filtrate liquid level control device and a coal dressing filtrate liquid level control method for preventing the liquid level of a filtrate pool from being incapable of being controlled in time.

In order to achieve the purpose, the invention adopts the technical scheme that:

the invention discloses a coal dressing filtrate liquid level control device, which comprises a coal slime filtering device, a highest liquid level detection device arranged at the top end of the side wall of a filtering pool and a lowest liquid level detection device arranged at the bottom end of the side wall, wherein a rotary pump, a filtrate pump, an alarm device and a programmable logic controller are arranged at the top of the filtering pool, a pipeline extending into the bottom of the filtering pool is arranged at the input end of the rotary pump, an overflow pool connected with the pipeline is arranged at the output end of the rotary pump, a pipeline connected with the output end of the coal slime filtering device is arranged at the input end of the filtrate pump, a pipeline extending into the bottom of the filtering pool is arranged at the output end of the filtrate pump, and the programmable logic controller is provided with a plurality of signal output ends correspondingly connected with the lowest liquid level detection device, the highest liquid level detection device, the rotary.

The invention discloses a coal dressing filtrate liquid level control device.

The invention discloses a coal dressing filtrate liquid level control device.

The invention discloses a coal dressing filtrate liquid level control device.

The invention discloses a coal dressing filtrate liquid level control device.A first electromagnetic valve is arranged in a pipeline between a coal slime filter press and a filtrate pump, the input end of the first electromagnetic valve is connected with an output end pipeline of the coal slime filter press, the output end of the first electromagnetic valve is connected with an input end pipeline of the filtrate pump, and the first electromagnetic valve is electrically connected with a programmable logic controller.

The invention discloses a coal dressing filtrate liquid level control device.A second electromagnetic valve is arranged on a pipeline which is arranged at the input end of a rotary exhaust pump and extends into the bottom of a filtrate pool, and the output end of the second electromagnetic valve is connected with the input end of the rotary exhaust pump through a pipeline, wherein the second electromagnetic valve is electrically connected with a programmable logic controller.

The invention discloses a coal dressing filtrate liquid level control device.

The invention discloses a coal dressing filtrate liquid level control method, which comprises the following steps:

s1, when the first sensor and the second sensor respectively sense the liquid level of the filtrate tank, the liquid level information is transmitted to the programmable logic controller through an electric signal, when the first sensor has an electric signal and the second sensor has no electric signal, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be opened, coal dressing filtrate generated by the coal slime filter press is transferred to the filtrate tank through the first electromagnetic valve and the filtrate pump, when the first sensor has an electric signal and the second sensor has an electric signal, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be closed, filtrate is stopped to enter the filtrate tank, the second electromagnetic valve is controlled to be opened, the filtrate enters the overflow tank through the second electromagnetic valve and the rotary discharge pump, and the filtrate is prevented from overflowing the filtrate tank.

And S2, when no electric signal is transmitted to the programmable logic controller by the first sensor and the electric signal is transmitted to the programmable logic controller by the second sensor, the programmable logic controller controls the first electromagnetic valve and the filtrate pump to be closed, controls the second electromagnetic valve and the audible and visual alarm to be opened, and gives an alarm by the audible and visual alarm.

The technical scheme disclosed by the invention is adopted, the device comprises a coal slime filtering device, a highest liquid level detection device arranged at the top end of the side wall of a filtering liquid pool and a lowest liquid level detection device arranged at the bottom end of the side wall, wherein a rotary discharge pump, a filtering liquid pump, an alarm device and a programmable logic controller are arranged at the top of the filtering liquid pool, a pipeline extending into the bottom of the filtering liquid pool is arranged at the input end of the rotary discharge pump, an overflow pool connected with the pipeline is arranged at the output end of the rotary discharge pump, a pipeline extending into the bottom of the filtering liquid pool is arranged at the input end of the filtering liquid pump, the pipeline is arranged at the input end of the filtering liquid pump and is connected with the output end of the coal slime filtering device, and the pipeline extending into the bottom of the filtering liquid pool is arranged at the output end of the filtering liquid pump, wherein the lowest liquid level detection device, the highest liquid level detection device, the problem of personnel shortage is alleviated, the idle running of the water pump for manufacturing the automobile is avoided when the automobile is not started or stopped in time after the automatic control of the filtrate pump is realized, the service life of the water pump is prolonged, the power consumption is reduced, the audible and visual alarm gives an alarm in time, and the potential safety hazard caused by the fault of the filtrate pump is avoided.

Drawings

The contents of the drawings and the reference numerals in the drawings are briefly described as follows:

FIG. 1 is a schematic structural diagram of a coal dressing filtrate liquid level control device;

FIG. 2 is a cross-sectional view of a filtrate tank of a coal dressing filtrate level control apparatus;

FIG. 3 is a flow chart of a coal dressing filtrate liquid level control method;

the labels in the above figures are: 1. a coal slime filter press; 2. a first solenoid valve; 3. a filtrate pump; 4. a filtrate tank; 5. a rotary pump; 6. a second solenoid valve; 7. overflowing the pool; 8. an audible and visual alarm; 9. a programmable logic controller; 10. a second sensor; 11. a first sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of a coal dressing filtrate liquid level control device of the invention, as shown in the figure:

the invention discloses a coal dressing filtrate liquid level control device, which comprises a coal slime filtering device, a highest liquid level detection device arranged at the top end of the side wall of a filtrate tank 4 and a lowest liquid level detection device arranged at the bottom end of the side wall, wherein a rotary pump 5, a filtrate pump 3, an alarm device and a programmable logic controller 9 are arranged at the top of the filtrate tank 4, a pipeline extending into the bottom of the filtrate tank 4 is arranged at the input end of the rotary pump 5, an overflow tank 7 connected with the pipeline is arranged at the output end of the rotary pump, a pipeline arranged at the input end of the filtrate pump 3 is connected with the output end of the coal slime filtering device, a pipeline extending into the bottom of the filtrate tank 4 is arranged at the, the programmable logic controller 9 is provided with a plurality of signal output ends which are correspondingly connected with the lowest liquid level detection device, the highest liquid level detection device, the rotary pump 5, the filtrate pump 3 and the alarm device respectively and the programmable logic controller 7 and output control signals.

The coal slime filtering device is set as a coal slime filter press 1, and the output end of the coal slime filter press 1 is connected with the input end of the filtrate pump 3 through a pipeline.

The highest liquid level detection device comprises a first sensor 11, and the first sensor 11 is electrically connected with the programmable logic controller 9.

The lowest liquid level detection device comprises a second sensor 10, and the second sensor 10 is electrically connected with the programmable logic controller 9.

The pipeline between coal slime pressure filter 1 and filtrate pump 3 sets up first solenoid valve 2, and the input of first solenoid valve 2 and the output end pipe connection of coal slime pressure filter 1, output and filtrate pump 3's input end pipe connection, wherein, first solenoid valve 2 and programmable logic controller 9 electric connection.

The pipeline that stretches into 4 bottoms of filtrating ponds that changes 5 input settings of arranging the pump sets up second solenoid valve 6, and the output of second solenoid valve 6 and the input pipe connection of changing row pump 5, wherein, second solenoid valve 6 and programmable logic controller 9 electric connection.

The alarm device comprises an audible and visual alarm 8, and the audible and visual alarm 8 is electrically connected with the programmable logic controller 9.

When the first sensor 11 and the second sensor 10 respectively sense the liquid level of the filtrate tank 4, the liquid level information is transmitted to the programmable logic controller 9 through an electric signal, when the first sensor 11 has an electric signal and the second sensor 10 has no electric signal for transmission, the programmable logic controller 9 controls the opening of the first electromagnetic valve 2 and the filtrate pump 3, coal dressing filtrate generated by the coal slime filter press 1 is transferred to the filtrate tank 4 through the first electromagnetic valve 2 and the filtrate pump 3, when the first sensor 11 has an electric signal and the second sensor 10 has electric signal for transmission, the programmable logic controller 9 controls the closing of the first electromagnetic valve 11 and the filtrate pump 3, the filtrate is stopped from entering the filtrate tank 4, the second electromagnetic valve 5 is controlled to be opened, the filtrate enters the overflow tank 7 through the second electromagnetic valve 5 and the rotary pump 6, and the filtrate is prevented from overflowing the filtrate tank 7.

When no electric signal is transmitted to the programmable logic controller 9 from the first sensor 11 and an electric signal is transmitted to the second sensor 10, the programmable logic controller 9 controls the first electromagnetic valve 2 and the filtrate pump 3 to be closed, controls the second electromagnetic valve 5 and the audible and visual alarm 8 to be opened, and the audible and visual alarm 8 gives an alarm, when the first electromagnetic valve 2 and the filtrate pump 3 are opened and no electric signal is transmitted to the programmable logic controller 9 from the first sensor 11 and the second sensor 10 within 2 minutes, the programmable logic controller 9 controls the first electromagnetic valve 2 and the filtrate pump 3 to be closed, controls the second electromagnetic valve 5 and the audible and visual alarm 8 to be opened, and the audible and visual alarm 8 gives an alarm.

The technical scheme disclosed by the invention is adopted, the device comprises a coal slime filtering device, a highest liquid level detection device arranged at the top end of the side wall of a filtrate pool 4 and a lowest liquid level detection device arranged at the bottom end of the side wall, wherein a rotary pump 6, a filtrate pump 3, an alarm device and a programmable logic controller 9 are arranged at the top of the filtrate pool 4, a pipeline extending into the bottom of the filtrate pool 4 is arranged at the input end of the rotary pump 6, an overflow pool 7 connected with the pipeline is arranged at the output end of the rotary pump, a pipeline connected with the output end of the coal slime filtering device is arranged at the input end of the filtrate pump 4, a pipeline extending into the bottom of the filtrate pool 4 is arranged at the output end of the filtrate pump, the lowest liquid level detection device, the highest liquid level detection device, the rotary pump 6, the filtrate pump 3 and the alarm device are respectively and electrically connected with the programmable logic controller 9, the automatic control of, manpower resources have been optimized to a certain extent, the nervous problem of personnel is alleviated, 3 automatic control back of filtrate pump have been realized and have been avoided opening and close untimely make car water pump idle running, extension water pump life cycle, reduce the power consumption, audible-visual annunciator 8 is reported to the police in time, has avoided the potential safety hazard that 3 faults in filtrate pump exist.

The invention has been described above with reference to the accompanying drawings, it is obvious that the invention is not limited to the specific implementation in the above-described manner, and it is within the scope of the invention to apply the inventive concept and solution to other applications without substantial modification.