Top inflating device of flotation machine

Abstract

The utility model discloses a flotation machine top inflating device which is characterized in that the top end of an air suction pipe on a self-suction flotation machine is fixedly connected with the end a of a connector, the end b of the connector is fixedly connected with the bottom end of a funnel, a filter disc is placed at the top end of the funnel, and the top end of the funnel is in threaded connection with a pressing cover; a first electromagnetic valve and an anemograph are arranged in the middle of the funnel from top to bottom, the c end of the funnel is connected with the air outlet end of the buffer tank through a first guide pipe, a second electromagnetic valve is installed on the first guide pipe, and the air inlet end of the buffer tank is connected with an air outlet of the fan through a second guide pipe. The first electromagnetic valve, the anemograph, the second electromagnetic valve and the fan are electrically connected with the controller respectively; the utility model has the advantages that the local improvement is carried out on the basis of retaining the original equipment, when the original equipment goes wrong, the fan can be switched to inflate through the controller in time, the normal operation of the equipment is not influenced, the air filled into the tank body can be ensured to generate sufficient bubbles, and the tank sinking phenomenon is avoided.

Description

Technical field:

[0001] The utility model relates to the technical field of flotation machine equipment, in particular to a top aeration device for a flotation machine. Background technology:

[0002] The existing self-priming flotation machine is mainly composed of a foam scraper, a bearing body, a motor, a central tube, an air suction pipe, a tank body, a hollow main shaft, a stator mechanism and an impeller mechanism. When the self-priming flotation machine is working, the motor drives the hollow main shaft and the impeller mechanism to rotate, and the blades on the impeller mechanism drive the slurry to rotate, generating centrifugal force to throw the slurry out, thereby forming a negative pressure inside the tank body, and inhaling air through the air suction pipe. The inhaled air and slurry simultaneously enter the cavity between the impeller blades for gas-liquid mixing. The air mixed in the liquid is subjected to the shear force of the liquid vortex and dispersed into small bubbles, so that the hydrophobic mineral particles are selectively fixed on the bubbles, and after being guided to a steady flow through the forward blades on the stator mechanism, they enter the flotation tank for sufficient mineral flotation.

[0003] The current problem is: due to the high level of concentrate in the zinc flotation machine, and the long-term immersion of the hollow main shaft, stator mechanism and impeller mechanism in the slurry, coupled with the scaling characteristics of limestone slurry, the hollow main shaft, stator mechanism and impeller mechanism are blocked, the rotation speed is reduced, and the negative pressure inside the tank is reduced, thereby reducing the air sucked into the suction pipe. The slurry in the flotation tank cannot generate bubbles due to lack of air, which will cause the tank to settle and make flotation impossible.

[0004] Therefore, in order to ensure that sufficient bubbles are generated in the tank body, it is necessary to ensure that a large amount of air is filled in the tank, and a new technical solution is proposed. Utility model content:

[0005] The utility model aims to provide a top aeration device for a flotation machine to solve the problems raised in the above background technology.

[0006] The utility model is implemented by the following technical solutions:

[0007] A top inflation device for a flotation machine, wherein the top of an air suction pipe on a self-priming flotation machine is fixedly connected to the a end of a connector, the b end of the connector is fixedly connected to the bottom end of a funnel, a filter is placed on the top of the funnel, the top of the funnel is threadedly connected to a pressing cover, a first solenoid valve and an anemometer are respectively arranged in the middle of the funnel from top to bottom, the c end of the funnel is connected to the air outlet of a buffer tank through a first conduit, a second solenoid valve is installed on the first conduit, and the air inlet end of the buffer tank is connected to the exhaust port of a fan through a second conduit; the first solenoid valve, the anemometer, the second solenoid valve and the fan are respectively electrically connected to a controller.

[0008] Preferably, the filter disc is sandwiched between the funnel and the compression cover, and the filter disc is made of stainless steel.

[0009] Preferably, a regulating valve is installed on the second conduit.

[0010] Preferably, the minimum flow rate of the fan is 220m 3 / min, the minimum wind pressure is 0.4MPa.

[0011] The advantages of the utility model are as follows: local improvements are made on the basis of retaining the original equipment. When problems occur in the original equipment, the controller can be used to switch to fan inflation in time without affecting the normal operation of the equipment. It can ensure that the bubbles generated by the gas filled into the tank body are sufficient and there will be no sinking phenomenon. Description of the drawings:

[0012] Figure 1 The present invention is a prior art of a self-priming flotation machine;

[0013] Figure 2 It is a schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a partial structural schematic diagram of the utility model;

[0015] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0016] In the figure: 1. suction pipe, 2. connector, 3. funnel, 4. filter, 5. pressing cover, 6. first solenoid valve, 7. anemometer, 8. first conduit, 9. second solenoid valve, 10. buffer tank, 11. second conduit, 12. fan, 13. controller, 14. regulating valve. Specific implementation method:

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model provides a technical solution for the top aeration device of a flotation machine:

[0019] A top aeration device for a flotation machine, wherein the top of an air suction pipe 1 on a self-priming flotation machine is fixedly connected to the a end of a connector 2, the b end of the connector 2 is fixedly connected to the bottom end of a funnel 3, a filter 4 is placed on the top of the funnel 3, the top of the funnel 3 is threadedly connected to a pressing cover 5, a first solenoid valve 6 and an anemometer 7 are respectively arranged in the middle of the funnel 3 from top to bottom, the c end of the funnel 3 is connected to the air outlet end of a buffer tank 10 through a first conduit 8, a second solenoid valve 9 is installed on the first conduit 8, and the air inlet end of the buffer tank 10 is connected to the air outlet of a fan 12 through a second conduit 11;

[0020] The first solenoid valve 6, the anemometer 7, the second solenoid valve 9 and the fan 12 are electrically connected to the controller 13, respectively. The controller 13 and the fan 12 are electrically connected to the power supply, respectively.

[0021] The filter disc 4 is sandwiched between the funnel and the pressing cover 5, and the filter disc 4 is made of stainless steel to increase corrosion resistance.

[0022] A regulating valve 14 is installed on the second conduit 11 , which can be used to adjust the amount of air entering the second conduit 11 .

[0023] Since the original self-priming flotation machine absorbs air through the suction pipe 1, under the condition of normal production, the air flow rate sucked by the suction pipe 1 on the original self-priming flotation machine should be higher than 220m 3 / min, the wind pressure in the pipe is higher than 0.4MPa.

[0024] Therefore, when purchasing and selecting the fan 12, the minimum flow rate of the fan 12 must be 220m 3 / min, the minimum wind pressure is 0.4MPa.

[0025] The working principle is as follows: when the air suction pipe 1 on the self-priming flotation machine is normally inhaling air, the air will pass through the filter 4 into the funnel 3, then enter the connector 2 and enter the air suction pipe 1 from the a end. At this time, the second solenoid valve 9 is in a closed state, and the fan 12 does not rotate;

[0026] When the air flowing into the funnel 3 is detected by the anemometer 7, the air flow rate is less than 220m 3 / min, or when the wind pressure is lower than 0.4MPa, the anemometer 7 will transmit the detected signal to the controller 13. After the judgment and processing, the controller 13 will immediately control the first solenoid valve 6 to close, and at the same time, the second solenoid valve 9 and the fan 12 are turned on, the power is turned on and the air is rotated. The fan 12 is used to pump air into the second conduit 11, and then the air enters the buffer tank 10. The air flows into the first conduit 8 through the buffer tank 10, and then enters the connector 2 and enters the suction pipe 1 from the a end, completing the air replenishment in the flotation machine cell body, ensuring that sufficient bubbles are generated in the cell body, and no sedimentation occurs, so the flotation work can continue.

[0027] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A flotation machine top aeration device, characterized in that: The top end of the suction pipe (1) on the self-priming flotation machine is fixedly connected to the a end of the connector (2), the b end of the connector (2) is fixedly connected to the bottom end of the funnel (3), a filter (4) is placed on the top end of the funnel (3), the top end of the funnel (3) is threadedly connected to the pressing cover (5), a first solenoid valve (6) and an anemometer (7) are respectively arranged in the middle of the funnel (3) from top to bottom, the c end of the funnel (3) is connected to the air outlet end of the buffer tank (10) through a first conduit (8), a second solenoid valve (9) is installed on the first conduit (8), and the air inlet end of the buffer tank (10) is connected to the air outlet of the fan (12) through a second conduit (11); The first solenoid valve (6), the anemometer (7), the second solenoid valve (9) and the fan (12) are electrically connected to the controller (13) respectively.

2. A flotation machine top aeration device according to claim 1, characterized in that: The filter disc (4) is sandwiched between the funnel and the pressing cover (5), and the filter disc (4) is made of stainless steel.

3. The top aeration device of a flotation machine according to claim 1, characterized in that: A regulating valve (14) is installed on the second conduit (11).

4. The top aeration device of a flotation machine according to claim 1, characterized in that: The minimum flow rate of the fan (12) is 220m 3 / min, the minimum wind pressure is 0.4MPa.

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