Intelligent micro-fog dust suppression main machine

Abstract

The utility model discloses an intelligent micro-fog dust suppression main machine which comprises a machine body, a main pipeline and a control cabinet are arranged in the machine body, a flowmeter and a waterway pressure transmitter are arranged on the main pipeline, an adjusting pump capable of automatically adjusting the adding amount of a dust suppressant is arranged in the machine body, and the adjusting pump is provided with a dust suppressant adding opening. A dust suppressant adding pipe is connected between the adjusting pump and the main pipeline, the flow meter and the water path pressure transmitter are both located at the position close to the dust suppressant adding pipe, a control module is arranged in the control cabinet, and the flow meter, the water path pressure transmitter and the adjusting pump are all electrically connected with the control module. The adjusting pump can automatically adjust the adding amount of the dust suppressant in a variable frequency mode and automatically match the adding amount of the dust suppressant according to the changed pressure value and flow value of liquid in the main pipeline, the concentration of the dust suppression liquid in the main pipeline is kept at the initial concentration value all the time, waste of the dust suppressant is avoided, and the dust falling effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of coal mine dust prevention and control, in particular to an intelligent micro-mist dust suppression host. Background Art

[0002] Coal mines emit a large amount of dust into the air in various links such as production, storage, transportation and tunneling. In particular, coal powder explosions may occur under certain conditions in underground coal, causing casualties and serious damage to mine equipment, leading to serious mine disasters. Therefore, it is very important to carry out spray dust suppression operations. Coal powder is a hydrophobic substance and is difficult to dissolve in water. When water and coal powder are combined for sedimentation, the coal powder and water combine slowly and the efficiency is poor. Therefore, dust suppressants are added and mixed with water in proportion, and then sprayed for dust suppression. Dust suppressants can improve the affinity between water and coal powder, accelerate the combination of water and coal powder, and greatly improve the dust reduction efficiency.

[0003] In the related technology, usually multiple dust removal points are arranged underground in coal mines. The dust removal points may be arranged in areas such as vibrating feeders. The dust suppressant is mixed with water in the main pipeline of the micro-mist dust suppression host, and then connected to the nozzles of each dust removal point through a conveying pipeline to achieve spray dust reduction.

[0004] In order to maintain the dust suppression effect of the spray, the dust suppression liquid concentration in the main pipeline needs to be kept at a fixed value. In actual use, some dust removal points are running at the same time, while some dust removal points are not running at the same time. If the nozzles of some dust removal points are closed and not working, the main pipeline flow of the micro-mist dust suppression host will change. If the flow in the main pipeline increases, the amount of dust suppressant added needs to be increased; if the flow decreases, the amount added needs to be reduced; otherwise, if the amount of dust suppressant added is a fixed value, a large amount of dust suppressant will waste dust suppressant, and a small amount of dust suppression will not be effective.

[0005] In the prior art, when the number of dust removal points changes and the flow rate in the main pipeline of the mist dust suppression host changes accordingly, it is impossible to ensure in real time that the dust suppression liquid in the main pipeline is at a constant concentration value, which can easily cause waste of dust suppression agent or poor dust reduction effect. Utility Model Content

[0006] In order to maintain a constant concentration of dust suppression liquid in the main pipeline in real time, avoid wasting dust suppressants and ensure the dust reduction effect, the present application provides an intelligent micro-mist dust suppression host.

[0007] The present application provides an intelligent micro-mist dust suppression host, which adopts the following technical solutions:

[0008] An intelligent micro-mist dust suppression host comprises a body, wherein a main pipeline and a control cabinet are arranged in the body, a flow meter and a water pressure transmitter are arranged on the main pipeline, a regulating pump which can automatically adjust the amount of dust suppressant added is arranged in the body, a dust suppressant addition pipe is connected between the regulating pump and the main pipeline, the regulating pump is provided with a dust suppressant addition port, the flow meter and the water pressure transmitter are both located near the dust suppressant addition pipe, a control module is arranged in the control cabinet, and the flow meter, the water pressure transmitter and the regulating pump are all electrically connected to the control module.

[0009] Optionally, a temperature sensor is provided in the body, the main pipeline is connected to a backflush pipeline, the backflush pipeline is provided with an air inlet and a solenoid valve, and the control module is electrically connected to the temperature sensor and the solenoid valve respectively.

[0010] Optionally, the backflush pipeline is provided with an air circuit pressure transmitter and a first check valve, and the air circuit pressure transmitter is electrically connected to the control module.

[0011] Optionally, the main pipeline is provided with a water inlet and a water outlet, a second check valve is provided on the main pipeline near the backflush pipeline, and a pressure pump is provided on the main pipeline near the water inlet.

[0012] Optionally, the main pipeline is provided with a ball valve, and the ball valve is located between the booster pump and the second check valve.

[0013] Optionally, the main pipeline is connected to a return pipe, and the return pipe is provided with a safety valve.

[0014] Optionally, a third check valve is provided on the main pipeline near the dust suppressant addition pipe.

[0015] Optionally, the main pipeline is connected to a pressure gauge.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. When the number of dust removal points changes, the liquid pressure and flow in the main pipeline change. At this time, the water pressure transmitter and flow meter transmit the real-time recorded values ​​to the control module, and the control module feeds back the electrical signal to the regulating pump. The regulating pump automatically adjusts the amount of dust suppressant added according to the pressure and flow values ​​of the main pipeline liquid after the change, and automatically proportions the amount of dust suppressant added, so that the dust suppression liquid concentration in the main pipeline is always maintained at the initial concentration value, avoiding the waste of dust suppressant and ensuring the dust reduction effect;

[0018] 2. When the water in the main pipe does not flow and the temperature sensor senses that the ambient temperature is lower than the set value, the temperature sensor transmits a signal to the control module, and the control module then feeds back the electrical signal to the solenoid valve, and the solenoid valve automatically opens, and then the compressed air enters from the air inlet, flows through the back-blowing pipe into the main pipe, blows out the water in the main pipe, and finally discharges it from the nozzle, avoiding the freezing of the liquid in the main pipe at low temperature, ensuring that the main pipe does not store water at low temperatures, and facilitating subsequent normal use;

[0019] 3. When the water pressure in the main pipeline is too high, the safety valve can reduce the water pressure in the main pipeline and drain the water, so as to ensure that the liquid pressure in the main pipeline is constant. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of an intelligent micro-mist dust suppression host.

[0021] Figure 2 It is a schematic diagram of the internal structure of the body.

[0022] Figure 3 A schematic diagram to highlight the connection between the main pipeline and the backflush pipeline.

[0023] Figure 4 It is a schematic diagram of the control system of an intelligent micro-mist dust suppression host.

[0024] Explanation of the reference numerals in the accompanying drawings: 1. Machine body; 2. Main pipeline; 21. Flow meter; 22. Water circuit pressure transmitter; 23. Water inlet; 24. Water outlet; 25. Second check valve; 26. Ball valve; 27. Third check valve; 28. Pressure gauge; 3. Control cabinet; 31. Control module; 4. Regulating pump; 41. Dust suppressant addition pipe; 42. Dust suppressant addition port; 5. Backflush pipeline; 51. Air inlet; 52. Solenoid valve; 53. Air circuit pressure transmitter; 54. First check valve; 55. Temperature sensor; 6. Booster pump; 7. Return pipe; 71. Safety valve. DETAILED DESCRIPTION

[0025] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0026] The embodiment of the present application discloses an intelligent micro-mist dust suppression host.

[0027] Reference Figure 1 and Figure 2An intelligent micro-mist dust suppression host includes a body 1, a main pipeline 2 and a control cabinet 3 are arranged in the body 1, a flow meter 21 and a water pressure transmitter 22 are arranged on the main pipeline 2, a regulating pump 4 that can automatically adjust the amount of dust suppressant added is arranged in the body 1, and the regulating pump 4 is provided with a dust suppressant addition port 42. The regulating pump 4 of this application adopts a plunger metering pump. In this application, the regulating pump 4 adopts a plunger metering pump. The plunger metering pump can adjust its speed according to the pressure and flow of the main pipeline 2 to achieve the effect of constant addition of dust suppressant. A dust suppressant addition pipe 41 is connected between the regulating pump 4 and the main pipeline 2, and the flow meter 21 and the water pressure transmitter 22 are both located near the dust suppressant addition pipe 41.

[0028] Reference Figure 2 and Figure 3 When the intelligent micro-mist dust suppression host is in use, the main pipe 2 is connected to the nozzles of each dust removal point, water flows through the main pipe 2 of the body 1, and the dust suppressant is added from the dust suppressant adding port 42, and enters the main pipe 2 through the regulating pump 4 and the dust suppressant adding pipe 41. After the dust suppressant is mixed with water in proportion, it flows to the nozzles of the dust removal point and is then sprayed out to suppress and reduce dust.

[0029] Reference Figure 2 and Figure 4 Initially, the pressure value and flow rate of the liquid in the main pipeline 2 remain constant, and the amount of dust suppressant added is also a constant value, so that the concentration of the dust suppressant liquid in the main pipeline 2 is a fixed value. A control module 31 is provided in the control cabinet 3, and the flow meter 21, the water pressure transmitter 22 and the regulating pump 4 are all electrically connected to the control module 31. The water pressure transmitter 22 is used to monitor and record the real-time pressure value of the liquid in the main pipeline 2, and transmit the pressure value feedback to the control module 31; the flow meter 21 is used to monitor and record the liquid flow through the main pipeline 2 in real time, and transmit the flow value feedback to the control module 31.

[0030] Reference Figure 2 and Figure 4 When the number of dust removal points changes, the liquid pressure and flow rate in the main pipeline 2 change. At this time, the water pressure transmitter 22 and the flow meter 21 transmit the real-time recorded values ​​to the control module 31, and the control module 31 then feeds back the electric signal to the regulating pump 4. The regulating pump 4 automatically adjusts the amount of dust suppressant added according to the pressure value and flow rate value of the liquid in the main pipeline 2 after the change, and automatically proportions the amount of dust suppressant added, so that the dust suppression liquid concentration in the main pipeline 2 is always maintained at the initial concentration value, avoiding the waste of dust suppressant and ensuring the dust reduction effect.

[0031] Reference Figure 2 and Figure 3When the number of dust removal points decreases, the liquid pressure and flow rate in the main pipeline 2 decrease, and the plunger metering pump frequency conversion control realizes a corresponding decrease in the amount of dust suppressant added to keep the concentration unchanged; similarly, when the number of dust removal points increases, the liquid pressure and flow rate in the main pipeline 2 increase, and the metering pump frequency conversion control realizes a corresponding increase in the amount of dust suppressant added to keep the concentration unchanged.

[0032] Reference Figure 2 and Figure 4 At the same time, the water circuit pressure transmitter 22 is also provided with an early warning module, which can play an early warning effect. The early warning module is electrically connected to the control module 31. The water circuit pressure transmitter 22 is used to monitor whether the liquid pressure in the main pipeline 2 is normal. If the liquid pressure in the main pipeline 2 is abnormal, the water circuit pressure transmitter 22 will feedback to the control cabinet 3 for alarm. The flow meter 21 can also measure the liquid flow through the main pipeline 2, which is convenient for calculating the power consumption of the intelligent micro-fog dust suppression host.

[0033] Reference Figure 2 and Figure 4 The micro mist dust suppression host is a dual-fluid host, which mainly relies on water and compressed air to achieve atomization. Considering the low temperature in winter, when the equipment is in the shutdown state, the water in the pipeline does not flow and is prone to freezing, affecting normal use. A temperature sensor 55 is provided in the body 1, and the main pipeline 2 is connected to a backflush pipeline 5. The backflush pipeline 5 is provided with an air inlet 51 and a solenoid valve 52. The control module 31 is electrically connected to the temperature sensor 55 and the solenoid valve 52 respectively.

[0034] Reference Figure 2 and Figure 4 When the water in the main pipe 2 does not flow and the temperature sensor 55 detects that the ambient temperature is lower than the set value, the temperature sensor 55 transmits a signal to the control module 31, and the control module 31 then feeds back the electrical signal to the solenoid valve 52, and the solenoid valve 52 automatically opens, and then the compressed air enters from the air inlet 51, flows through the back-blowing pipe 5 into the main pipe 2, blows out the water in the main pipe 2, and finally discharges it from the nozzle, avoiding the freezing of the liquid in the main pipe 2 at low temperature, ensuring that the main pipe 2 does not store water at low temperatures, and facilitating subsequent normal use.

[0035] Reference Figure 2 and Figure 4 The backflush pipeline 5 is provided with a gas circuit pressure transmitter 53 and a first check valve 54. The gas circuit pressure transmitter 53 is electrically connected to the control module 31. The gas circuit pressure transmitter 53 monitors the gas pressure value in the backflush pipeline 5 and transmits the gas pressure value to the control module 31. The first check valve 54 is a one-way valve, so that the gas in the backflush pipeline 5 will not flow back, thereby ensuring the drainage effect of the main pipeline 2.

[0036] Reference Figure 2 and Figure 3The main pipe 2 needs to be pressurized at the water inlet 23. Since the distance between the nozzle and the machine body 1 is relatively far, if it is not pressurized, it is easy to cause pressure loss, resulting in a decrease in the terminal pressure, which affects the spraying and dust suppression effect. The main pipe 2 is provided with a water inlet 23 and a water outlet 24. The main pipe 2 is provided with a second check valve 25 near the backflush pipe 5. The main pipe 2 is provided with a pressure pump 6 near the water inlet 23. In this application, the pressure pump 6 adopts a vertical centrifugal pump. The pressure pump 6 is convenient for pressurizing the water entering the main pipe 2 to ensure the final spraying effect.

[0037] Reference Figure 2 and Figure 3 The second check valve 25 is a one-way valve, which ensures that the backwash gas does not enter the booster pump 6, so as to ensure the normal use of the booster pump 6. The main pipeline 2 is provided with a ball valve 26, which is located between the booster pump 6 and the second check valve 25. The ball valve 26 facilitates the maintenance of the main pipeline 2. The main pipeline 2 is connected to a pressure gauge 28, which facilitates the staff to check the pressure value of the liquid in the main pipeline 2 when the power is off.

[0038] Reference Figure 2 and Figure 3 The main pipeline 2 is connected to a return pipe 7, and a safety valve 71 is provided on the return pipe 7. The safety valve 71 provides water pressure insurance. When the water pressure in the main pipeline 2 is too high, the safety valve 71 is opened to reduce the water pressure in the main pipeline 2 and drain the water, so as to ensure that the liquid pressure in the main pipeline 2 is constant. The main pipeline 2 is provided with a third check valve 27 near the dust suppressant addition pipe 41. The third check valve 27 is a one-way valve to prevent the added dust suppressant from flowing in the main pipeline 2 in reverse, so as to ensure that the dust suppressant and the water in the main pipeline 2 are mixed normally.

[0039] The implementation principle of an intelligent micro-mist dust suppression host in the embodiment of the present application is as follows: initially, the concentration of the dust suppression liquid in the main pipeline 2 is a fixed value. The water pressure transmitter 22 monitors and records the real-time pressure value of the liquid in the main pipeline 2, and transmits the pressure value feedback to the control module 31; the flow meter 21 monitors and records the liquid flow through the main pipeline 2 in real time, and transmits the flow value feedback to the control module 31. When the number of dust removal points changes, the liquid pressure and flow in the main pipeline 2 change. At this time, the water pressure transmitter 22 and the flow meter 21 transmit the real-time recorded value to the control module 31, and the control module 31 then feeds back to the regulating pump 4 through an electrical signal. The regulating pump 4 automatically adjusts the amount of dust suppressant added according to the pressure value and flow value of the liquid in the main pipeline 2 after the change, and automatically proportions the amount of dust suppressant added, so that the concentration of the dust suppression liquid in the main pipeline 2 is always maintained at the initial concentration value, avoiding waste of dust suppressant and ensuring the dust reduction effect.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An intelligent micro-mist dust suppression host, comprising a body (1), characterized in that: The machine body (1) is provided with a main pipeline (2) and a control cabinet (3), the main pipeline (2) is provided with a flow meter (21) and a water pressure transmitter (22), the machine body (1) is provided with a regulating pump (4) capable of automatically adjusting the amount of dust suppressant added, a dust suppressant addition pipe (41) is connected between the regulating pump (4) and the main pipeline (2), the regulating pump (4) is provided with a dust suppressant addition port (42), the flow meter (21) and the water pressure transmitter (22) are both located near the dust suppressant addition pipe (41), the control cabinet (3) is provided with a control module (31), the flow meter (21), the water pressure transmitter (22) and the regulating pump (4) are all electrically connected to the control module (31).

2. According to claim 1, the intelligent micro-mist dust suppression host is characterized by: The machine body (1) is provided with a temperature sensor (55), the main pipeline (2) is connected to a backflush pipeline (5), the backflush pipeline (5) is provided with an air inlet (51) and a solenoid valve (52), and the control module (31) is electrically connected to the temperature sensor (55) and the solenoid valve (52), respectively.

3. According to claim 2, the intelligent micro-mist dust suppression host is characterized by: The backflush pipeline (5) is provided with a gas circuit pressure transmitter (53) and a first check valve (54), and the gas circuit pressure transmitter (53) is electrically connected to the control module (31).

4. The intelligent micro-mist dust suppression host according to claim 2 is characterized by: The main pipeline (2) is provided with a water inlet (23) and a water outlet (24), a second check valve (25) is provided on the main pipeline (2) near the backflush pipeline (5), and a booster pump (6) is provided on the main pipeline (2) near the water inlet (23).

5. The intelligent micro-mist dust suppression host according to claim 4 is characterized in that: The main pipeline (2) is provided with a ball valve (26), and the ball valve (26) is located between the booster pump (6) and the second check valve (25).

6. The intelligent micro-mist dust suppression host according to claim 1 is characterized by: The main pipeline (2) is connected to a water return pipe (7), and the water return pipe (7) is provided with a safety valve (71).

7. The intelligent micro-mist dust suppression host according to claim 1 is characterized by: The main pipeline (2) is provided with a third check valve (27) near the dust suppressant addition pipe (41).

8. The intelligent micro-mist dust suppression host according to claim 1 is characterized by: The main pipeline (2) is connected to a pressure gauge (28).

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