An emulsion automatic liquid preparation station control system for an intelligentized fully mechanized mining face

Abstract

The utility model discloses an automatic emulsion station control system for intelligentized fully mechanized coal mining face, water tank is linked with water pump, and water pump is linked with proportioner, oil pump is linked with oil tank, and oil tank is linked with proportioner, and proportioner is linked with mixing liquid device, and mixing liquid device is equipped with concentration detector, and mixing liquid device is linked with emulsion tank, the control end of water pump and oil pump is linked with pump controller, and pump controller and concentration detector are linked with host computer respectively, and constitute automatic control structure. The utility model realizes that emulsion is automatically proportioned, and the automatic detection of tank liquid level, automatic liquid supplement, improve the automation level and operation efficiency of liquid supply system, and PLC controller linkage sensor realizes that emulsion is automatically proportioned, through the start of water pump, utilize the negative pressure effect and draw appropriate emulsified oil, to reach the effect of proportioning, need not manual proportioning, and proportioning is accurate, satisfies the demand of fully mechanized coal mining face.

Description

Technical Field

[0001] This utility model relates to the field of coal mining technology. Specifically, it is a control system for an automatic emulsion preparation station used in intelligent fully mechanized mining faces. Background Technology

[0002] Ordos Haohua Hongqingliang Mining Co., Ltd. is located in Dalad Banner, Ordos City, Inner Mongolia Autonomous Region. The minefield is situated on the northern edge of the Dongsheng Coalfield, with soft overlying strata and poor cementation, classifying it as a typical weak stratum. Particularly, entering the medium-deep sections increases the difficulty of mining the high-extraction face, and the characteristics and degree of mine pressure manifestation differ significantly from mines with other conditions. Currently, the first mining face in the second panel of the Hongqingliang Coal Mine is the 12308 working face, with an average coal seam thickness of approximately 5.5m-6m, classifying it as a thick coal seam, making it prone to abnormal mine pressure manifestations during mining. Simultaneously, the weak cementation and low strength of the surrounding rock significantly impact the roof movement of the working face, posing significant challenges to mine pressure management and the selection of equipment such as hydraulic supports.

[0003] In recent years, with the rapid development of coal mine production and freight capacity in my country, emulsions, as a working medium for high-water-based hydraulic transmissions, have been widely used in fields such as mine support equipment. Whether the concentration of the emulsion is appropriate and meets standards directly affects the service life and operating costs of support equipment, hydraulic transmissions, and control components. Currently, in coal mining, emulsion mixing mainly relies on manual operation or traditional semi-automatic devices, resulting in low mixing accuracy and time consumption, thus affecting the overall production progress. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is to provide an automatic emulsion mixing station control system for intelligent fully mechanized mining faces, which can effectively solve the problems of low emulsion mixing accuracy and time-consuming and labor-intensive processes in the existing system.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] An automatic emulsion mixing station control system for intelligent fully mechanized mining faces includes a water tank, wherein the outlet of the water tank is connected to the inlet of a water pump via a pipeline, and the outlet of the water pump is connected to the inlet of a proportioner via a pipeline.

[0007] The oil pump outlet is connected to the oil tank inlet via a pipeline. The oil tank outlet is connected to the proportioner inlet via a pipeline. The proportioner outlet is connected to the mixer inlet via a pipeline. The mixer is equipped with a concentration detector. The mixer outlet is connected to the emulsion tank inlet via a pipeline.

[0008] The control terminals of the water pump and oil pump are connected to the pump controller, and the pump controller and concentration detector are respectively connected to the main unit, forming an automatic control structure.

[0009] Preferably, a float valve is installed at the water inlet of the water tank.

[0010] Preferably, the water tank is equipped with a first liquid level sensor connected to the inside of the water tank, and the first liquid level sensor is connected to the main unit.

[0011] Preferably, a first pressure gauge and a pressure reducing valve are sequentially installed on the pipeline between the water pump and the proportioner, and the first pressure gauge is connected to the main unit.

[0012] Preferably, a check valve is installed on the pipeline between the water pump and the first pressure gauge.

[0013] Preferably, a second pressure gauge is installed on the pipeline between the proportioner and the mixer, and the second pressure gauge is connected to the main unit.

[0014] Preferably, the above-mentioned oil tank is equipped with a second liquid level sensor connected to the inside of the oil tank, and the second liquid level sensor is connected to the main unit.

[0015] Preferably, the emulsion tank is equipped with a third liquid level sensor connected to the inside of the emulsion tank, and the third liquid level sensor is connected to the host.

[0016] Preferably, the host computer is a PLC controller.

[0017] The technical solution of this utility model has achieved the following beneficial technical effects:

[0018] 1. This utility model realizes automatic emulsion proportioning, automatic tank liquid level detection, and automatic liquid replenishment, thereby improving the automation level and operating efficiency of the liquid supply system;

[0019] 2. The PLC controller, in conjunction with the sensors, enables automatic emulsion mixing. By controlling the start of the water pump, the appropriate amount of emulsion oil is drawn in by the negative pressure, thereby achieving the mixing ratio. No manual mixing is required, the mixing ratio is accurate, and it meets the needs of the fully mechanized mining face. Attached Figure Description

[0020] Figure 1 This utility model presents a structural schematic diagram of an automatic emulsion preparation station control system for intelligent fully mechanized mining faces.

[0021] The reference numerals in the diagram are as follows: 1-Water tank; 101-Float valve; 102-First liquid level sensor; 2-Water pump; 3-First pressure gauge; 4-Main unit; 5-Pressure reducing valve; 6-Proportioning device; 7-Second pressure gauge; 8-Mixer; 81-Concentration detector; 9-Emulsion tank; 91-Third liquid level sensor; 10-Oil tank; 11-Second liquid level sensor; 12-Oil pump; 13-Pump controller. Detailed Implementation

[0022] like Figure 1 As shown, this embodiment is used for the automatic emulsion mixing station control system of intelligent fully mechanized mining face. The outlet of water tank 1 is connected to the inlet of water pump 2 via a pipeline. The outlet of water pump 2 is connected to the inlet of proportioner 6 via a pipeline. The inlet of oil pump 12 is connected to the mine emulsion oil tank. The outlet of oil pump 12 is connected to the inlet of oil tank 10 via a pipeline. The outlet of oil tank 10 is connected to the inlet of proportioner 6 via a pipeline. The outlet of proportioner 6 is connected to the inlet of mixer 8 via a pipeline. The outlet of mixer 8 is connected to the inlet of emulsion tank 9 via a pipeline. The control terminals of water pump 2 and oil pump 12 are connected to pump controller 13 to control the start and stop of water pump 2 and oil pump 12. Pump controller 13 is connected to host 4, forming an automatic control structure.

[0023] In this embodiment, a float valve 101 is installed at the water inlet of the water tank 1, and a first liquid level sensor 102 connected to the inside of the water tank 1 is installed outside the water tank 1. The first liquid level sensor 102 is connected to the host 4. When the water level of the water tank 1 reaches the predetermined water level, the float valve 101 closes and the water intake stops; when the water level drops to a certain level, the float valve 101 opens and the water tank 1 is able to receive water.

[0024] A first pressure gauge 3 and a pressure reducing valve 5 are installed sequentially on the pipeline between the water pump 2 and the proportioner 6. The first pressure gauge 3 is connected to the main unit 4. A second pressure gauge 7 is installed on the pipeline between the proportioner 6 and the mixer 8. The second pressure gauge 7 is connected to the main unit 4. The first pressure gauge 3 and the second pressure gauge 7 detect the inlet water pressure and the mixing pressure in real time and transmit them to the main unit 4.

[0025] A one-way valve is installed on the pipeline between water pump 2 and the first pressure gauge 3 to prevent water in the pipeline from flowing back to water pump 2 and to avoid damage to water pump 2, while also maintaining a certain pressure in the pipeline.

[0026] The mixer 8 is equipped with a concentration detector 81, which is connected to the host 4. The concentration detector 81 detects the concentration of the emulsion in real time and transmits it to the host 4. If the concentration is too low or too high, the host 4 will adjust the supply of water tank 1 and oil tank 10 to ensure that the concentration is always within the qualified range and avoid errors caused by manual mixing.

[0027] The oil tank 10 is equipped with a second liquid level sensor 11 that is connected to the inside of the oil tank 10. The second liquid level sensor 11 is connected to the main unit 4.

[0028] The oil tank 10 is a temporary storage space for emulsified oil. When the second liquid level sensor 11 detects that the emulsified oil is lower than the warning level, the main unit 4 controls the oil pump 12 to add emulsified oil through the pump controller 13 and prohibits the water pump 2 from starting, so that the system cannot mix the liquid. After the emulsified oil in the oil tank 10 reaches the set level, the oil pump 12 stops and the oil pumping ends.

[0029] The emulsion tank 9 is equipped with a third liquid level sensor 91 that is connected to the inside of the emulsion tank 9, and the third liquid level sensor 91 is connected to the host 4.

[0030] When the third liquid level sensor 91 detects that the liquid level is lower than the set value, the host 4 controls the water pump 2 to start through the pump controller 13. The proportioner 6 starts to work under the action of high pressure pure water. At the same time, under the action of negative pressure, it draws emulsified oil from the oil tank 10 in proportion. After being fully mixed by the mixer 8, it is transported to the emulsion tank 9.

[0031] In this embodiment, host 4 is a PLC controller.

[0032] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A control system for an automatic emulsion dispensing station in an intelligent fully mechanized mining face, comprising a water tank, characterized in that, The outlet of the water tank (1) is connected to the inlet of the water pump (2) via a pipe, and the outlet of the water pump (2) is connected to the inlet of the proportioner (6) via a pipe. The oil pump (12) outlet is connected to the oil tank (10) inlet via a pipeline. The oil tank (10) outlet is connected to the proportioner (6) inlet via a pipeline. The proportioner (6) outlet is connected to the mixer (8) inlet via a pipeline. The mixer (8) is equipped with a concentration detector (81). The mixer (8) outlet is connected to the emulsion tank (9) inlet via a pipeline. The control terminals of the water pump (2) and the oil pump (12) are connected to the pump controller (13), and the pump controller (13) and the concentration detector (81) are connected to the host (4) respectively, forming an automatic control structure.

2. The automatic emulsion dispensing station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, A float valve (101) is installed at the inlet of the water tank (1).

3. The automatic emulsion dispensing station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, The water tank (1) is equipped with a first liquid level sensor (102) connected to the inside of the water tank (1), and the first liquid level sensor (102) is connected to the host (4).

4. The automatic emulsion dispensing station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, The pipeline between the water pump (2) and the proportioner (6) is equipped with a first pressure gauge (3) and a pressure reducing valve (5) in sequence. The first pressure gauge (3) is connected to the main unit (4).

5. The automatic emulsion preparation station control system for intelligent fully mechanized mining faces according to claim 4, characterized in that, A one-way valve is installed on the pipeline between the water pump (2) and the first pressure gauge (3).

6. The automatic emulsion preparation station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, A second pressure gauge (7) is installed on the pipeline between the proportioner (6) and the mixer (8), and the second pressure gauge (7) is connected to the main unit (4).

7. The automatic emulsion preparation station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, The oil tank (10) is equipped with a second liquid level sensor (11) connected to the inside of the oil tank (10), and the second liquid level sensor (11) is connected to the host (4).

8. The automatic emulsion dispensing station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, The emulsion tank (9) is equipped with a third liquid level sensor (91) connected to the inside of the emulsion tank (9), and the third liquid level sensor (91) is connected to the host (4).

9. The automatic emulsion dispensing station control system for intelligent fully mechanized mining faces according to claim 1, characterized in that, The host (4) is a PLC controller.

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