CN113550881A

CN113550881A - Anti-blocking mud pump capable of automatically adjusting water content of sludge and dredging method thereof

Info

Publication number: CN113550881A
Application number: CN202110839283.9A
Authority: CN
Inventors: 丁彩
Original assignee: Shaoxing Yanghai Construction Co ltd
Current assignee: Shaoxing Yanghai Construction Co ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2021-10-26
Anticipated expiration: 2041-07-23
Also published as: CN113550881B

Abstract

The invention discloses an anti-blocking mud pump capable of automatically adjusting the water content of sludge and a dredging method thereof, and the anti-blocking mud pump comprises a mud pump body, a water tank, a water pump and a water gun, wherein a water suction device is arranged on a sludge discharge port and comprises a first channel and a second channel, a first flow detection device and a second flow detection device are respectively arranged on the water inlet side and the water outlet side of the second channel, a conical guide section, an injection area and a vacuum chamber are sequentially arranged in the second channel along the water flow direction, the vacuum chamber is communicated with the second channel through a third channel, filter cloth is arranged at one end of the third channel, which is connected with the second channel, a check valve is arranged in the third channel, the water tank and the water gun are respectively connected at the outlet of the second channel through two water pipelines, and an electromagnetic flow adjusting valve is arranged on one of the water pipelines. The water content in the sludge is adjusted by adjusting the water outlet speed of the water gun, the sludge is controlled to have reasonable water content, the sludge pump can be prevented from being blocked, and the suction amount can be reduced.

Description

Anti-blocking mud pump capable of automatically adjusting water content of sludge and dredging method thereof

Technical Field

The invention belongs to the technical field of slurry pumps, and particularly relates to an anti-blocking slurry pump capable of automatically adjusting the water content of sludge and a dredging method thereof.

Background

In the hydraulic engineering, sludge in a river channel needs to be cleaned regularly, generally, river water is pumped to expose out of a river bottom and then is subjected to dredging operation through a slurry pump, in the process of cleaning the sludge through the slurry pump, the slurry pump is connected with a sludge suction pipeline, an inlet of the sludge suction pipeline is placed at a position with a lower river bed terrain, then the river bed is flushed through a water gun, the sludge is flushed to the inlet of the sludge suction pipeline to be cleaned, the sucked sludge is conveyed to a conveying tool through a conveying pipeline through a sludge discharge port of the slurry pump, and is conveyed to a sludge treatment site through the conveying tool to be treated. In the dredging process, if the water content in the sludge is too high, the sludge pump needs to operate for a longer time, a larger amount of sludge containing water is transported, the transportation cost is increased, and the working efficiency is lower; if the water content in the sludge is too low, the sludge pump is easily blocked.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the anti-blocking mud pump capable of automatically adjusting the water content of the sludge and the dredging method thereof.

In order to solve the technical problem, the invention is solved by the following technical scheme: an anti-blocking mud pump capable of automatically adjusting the water content of sludge comprises a mud pump body, a water tank, a water pump and a water gun, wherein a sludge suction inlet and a sludge discharge outlet are formed in the mud pump body, a water suction device is arranged on the sludge discharge outlet and comprises a first channel communicated with the sludge discharge outlet and a second channel communicated with the water pump, a first flow detection device and a second flow detection device are respectively arranged on the water inlet side and the water outlet side of the second channel, a conical guide section, an injection area and a vacuum chamber are sequentially arranged in the second channel between the first flow detection device and the second flow detection device along the water flow direction, the vacuum chamber is communicated with the second channel through a third channel, filter cloth is arranged at one end of the third channel, which is connected with the second channel, and a one-way valve is arranged in the third channel, the water tank and the water gun are respectively connected at the outlet of the second channel through two water pipelines, one of the water pipelines is provided with an electromagnetic flow regulating valve, and the first flow detecting device, the second flow detecting device and the electromagnetic flow regulating valve are connected with a control device. When the slurry pump operates, the water pump operates to convey water to the second channel at a constant speed, the water flowing through the second channel absorbs water from sludge in the first channel due to the Venturi effect, the water absorption amount is a detection difference value of the second flow detection device and the first flow detection device, the water absorption amount is positively correlated with the water content of the sludge between the maximum value and the minimum value, if the water absorption amount is large, the water content of the sludge is high, one part of the water flows back to the water tank when flowing through the two water through pipelines, and the other part of the water flows to the water gun and is sprayed out by the water gun; when the water content is too high, the control device controls the opening of the electromagnetic flow regulating valve to reduce the water spraying speed of the water gun so as to reduce the water content of the subsequently sucked sludge; when the water content is too low, the control device controls the opening of the electromagnetic flow regulating valve to increase the water spraying speed of the water gun so as to improve the water content of the subsequently sucked sludge; therefore, the water outlet speed of the water gun is automatically adjusted to adjust the water content in the sludge. This kind of mud pump and squirt cooperation, the moisture content in the silt is adjusted through the play water velocity of adjusting the squirt, and control silt has reasonable moisture content, can enough prevent that the mud pump from blockking up, can reduce the suction volume again to improve the operating efficiency, and the water cyclic utilization in the silt of can sucking out when the squirt sprays reduces the water consumption, reduces the cost of transportation simultaneously.

In the above technical solution, preferably, the water absorption device includes a plurality of second channels surrounding the periphery of the first channel, two ends of the plurality of second channels are connected to the water collection chamber, the plurality of second channels are connected to the first channel through third channels, and the first flow detection device and the second flow detection device are disposed at the outer sides of the two water collection chambers. Adopt this structure can make the second passageway can be more even absorb water from each angle of first passageway, and the effect of absorbing water is better, more even.

In the above technical scheme, preferably, a motor is arranged at an outlet end of the first channel, a rotating shaft connected with an output shaft of the motor axially penetrates through the first channel, a spiral plate is wound on the rotating shaft, and the motor drives the spiral plate to extrude sludge in the first channel. The first channel is easy to block due to the poor flowing property of the sludge after water absorption, the rotating shaft is driven to rotate by the motor, and the sludge in the first channel can be extruded out by the spiral plate, so that the first channel is prevented from being blocked.

In the above technical solution, preferably, a connection portion of the third channel and the first channel is located outside the spiral plate. By adopting the structure, the sludge is enabled to absorb water through the third channel after entering the range of the spiral plate, and the water content of the sludge which does not enter the range of the spiral plate is ensured to be higher, the fluidity is better, and the blockage is not easy to occur.

In the above technical scheme, preferably, a filter cloth frame is arranged in the first channel, filter cloth is arranged in a gap of the filter cloth frame, the filter cloth frame is arranged in the first channel in a cylindrical shape, a sludge filtering water outlet cavity is formed between the filter cloth frame and the side wall of the first channel, and the joint of the third channel and the first channel is located on the side wall of the sludge filtering water outlet cavity. By adopting the structure, the filter cloth can be conveniently supported, the filter cloth is prevented from being rolled by the spiral plate, and a sludge filtering water cavity is formed to ensure that the water absorption effect is better.

The dredging method of the anti-blocking slurry pump capable of automatically adjusting the water content of the sludge comprises the following steps of: 1. starting a water pump to supply water to the water gun through the second channel, starting a slurry pump to suck sludge from the sludge suction port and discharge the sludge from the sludge discharge port to the first channel; 2. the first flow detection device and the second flow detection device respectively detect the inlet flow and the outlet flow of the second channel, and the control device calculates the amount of water sucked into the second channel from the first channel according to the difference value of the inlet flow and the outlet flow of the second channel; 3. the control device adjusts the opening of the electromagnetic flow regulating valve according to the water quantity sucked into the second channel by the first channel so as to control the water spraying speed of the water gun and control the water content of the sludge.

Compared with the prior art, the invention has the following beneficial effects: this kind of mud pump and squirt cooperation, the moisture content in the silt is adjusted through the play water velocity of adjusting the squirt, and control silt has reasonable moisture content, can enough prevent that the mud pump from blockking up, can reduce the suction volume again to improve the operating efficiency, and the water cyclic utilization in the silt of can sucking out when the squirt sprays reduces the water consumption, reduces the cost of transportation simultaneously.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present invention.

Fig. 2 is a schematic sectional structure view of a water absorbing device in an embodiment of the invention.

Fig. 3 is a schematic sectional structure view of another direction of the water absorbing device in the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 3, an anti-clogging mud pump for automatically adjusting moisture content of sludge comprises a mud pump body 1, a water tank 2, a water pump 3 and a water gun 4, wherein a sludge suction port 11 and a sludge discharge port 12 are arranged on the mud pump body 1, a water absorption device 5 is arranged on the sludge discharge port 12, the water absorption device 5 comprises a first channel 51 communicated with the sludge discharge port 12 and a second channel 52 communicated with the water pump 3, a first flow detection device 61 and a second flow detection device 62 are respectively arranged on a water inlet side and a water outlet side of the second channel 52, a conical guide section 53, a spray area 54 and a vacuum chamber 55 are sequentially arranged in the second channel 52 between the first flow detection device 61 and the second flow detection device 62 along a water flow direction, the vacuum chamber 55 is communicated with the second channel 52 through a third channel 56, and a filter cloth 7 is arranged at one end of the third channel 56 connected with the second channel 52, a check valve 57 is arranged in the third channel 56, the outlet of the second channel 52 is respectively connected with the water tank 2 and the water gun 4 through two water pipelines 8, one of the water pipelines 8 is provided with an electromagnetic flow regulating valve 9, and the first flow detecting device 61, the second flow detecting device 62 and the electromagnetic flow regulating valve 9 are connected with a control device (not shown in the figure). When the slurry pump is operated, the water pump 3 is operated to transmit water to the second channel 52 at a constant speed, the water flowing through the second channel 52 is absorbed from the sludge of the first channel 51 by the third channel 56 due to the venturi effect generated by the conical guide section 53, the injection area 54 and the vacuum chamber 55, the water absorption is the detection difference value of the second flow detection device 62 and the first flow detection device 61, the water absorption is positively correlated with the water content of the sludge between the maximum value and the minimum value, if the water absorption is large, the water content of the sludge is high, otherwise, the water content of the sludge is low, when the water flows through the two water communication pipelines 8, a part of the water flows back to the water tank, and a part of the water flows to the water gun 4 and is sprayed out by the water gun 4; when the water content is too high, the control device controls the opening degree of the electromagnetic flow regulating valve 9 to reduce the water spraying speed of the water gun 4 so as to reduce the water content of the subsequently sucked sludge; when the water content is too low, the control device controls the opening degree of the electromagnetic flow regulating valve 9 to increase the water spraying speed of the water gun 4 so as to improve the water content of the subsequently sucked sludge; therefore, the water outlet speed of the water gun is automatically adjusted to adjust the water content in the sludge. The electromagnetic flow control valve 9 can be installed on the water pipeline 8 of the connecting water gun 4 or on the water pipeline 8 of the connecting water tank 2, in the embodiment, the electromagnetic flow control valve 9 is installed on the water pipeline 8 of the connecting water gun 4, the opening degree of the electromagnetic flow control valve 9 is increased when the water spraying speed of the water gun 4 is increased, and the opening degree of the electromagnetic flow control valve 9 is reduced when the water spraying speed of the water gun 4 is reduced; if electromagnetic flow control valve 9 is installed on the water pipeline 8 of connecting water tank 2, then will increase the water spray rate of squirt 4 and then will reduce electromagnetic flow control valve 9's aperture, will reduce the water spray rate of squirt 4 and then will increase electromagnetic flow control valve 9's aperture.

In the operation process, the water pump 3 is used for providing water absorption power and supplying water to the water gun 4, the water absorption amount is in positive correlation with the water content of the sludge between the maximum value and the minimum value, the flow difference between the second flow detection device 62 and the first flow detection device 61 is tested by simulating the sludge with a reasonable water content range sucked by a slurry pump, the range of the flow difference between the second flow detection device 62 and the first flow detection device 61 when the water content of the sludge is in the reasonable range can be measured, whether the water content of the sludge is in the most reasonable range can be known according to the flow difference measured by the second flow detection device 62 and the first flow detection device 61, if the water content of the sludge is small, the water content of the sludge is too low, and if the water content of the sludge is large, the water content of the sludge is too high; the water content in the silt is adjusted through the water outlet speed of the water gun 4, the silt is controlled to have reasonable water content, the mud pump can be prevented from being blocked, the pumping amount can be reduced, the operation efficiency is improved, water in the silt can be sucked out when the water gun 4 sprays, the water consumption is reduced, and the transportation cost is reduced.

In this embodiment, the water absorbing device 5 includes six second channels 52 uniformly surrounding the periphery of the first channel 51, both ends of the six second channels 52 are connected to the water collecting cavities 58, the six second channels 52 are connected to the first channel 51 through the third channel 56, and the first flow rate detecting device 61 and the second flow rate detecting device 62 are disposed outside the two water collecting cavities 58. By adopting the structure, the second channel 52 can absorb water from all angles of the first channel 51 more uniformly, and the water absorption effect is better and more uniform.

In this embodiment, a motor 59 is disposed at an outlet end of the first passage 51, a rotating shaft 510 axially penetrating through the first passage 51 and connected to an output shaft of the motor 59 is disposed, a spiral plate 511 is wound on the rotating shaft 510, and the motor 59 drives the spiral plate 511 to extrude sludge in the first passage 51. The first channel 51 is easily blocked due to the poor fluidity of the sludge after water absorption, and the rotation shaft 510 is driven by the motor 59 to rotate, so that the sludge in the first channel 51 can be extruded out by the spiral plate 511, and the first channel 51 is prevented from being blocked.

In this embodiment, in order to make the sludge absorb water through the third channel 56 after entering the range of the spiral plate 511, and ensure that the water content of the sludge not entering the range of the spiral plate 511 is high, the fluidity is good, and the sludge is not easy to block, the connection part of the third channel 56 and the first channel 51 is located outside the spiral plate 511.

In this embodiment, a filter cloth frame 71 is disposed in the first channel 51, a filter cloth 7 is disposed in a gap of the filter cloth frame 71, the filter cloth frame 71 is disposed in the first channel 51 in a cylindrical shape, a sludge filtering water cavity 72 is formed between the filter cloth frame 71 and a side wall of the first channel 51, and a joint of the third channel 56 and the first channel 51 is located on a side wall of the sludge filtering water cavity 72. By adopting the structure, the filter cloth 7 can be conveniently supported, the filter cloth 7 is prevented from being rolled in by the spiral plate 511, and the sludge filtering water cavity 72 is formed, so that the water absorption effect is better.

The dredging method of the anti-blocking slurry pump capable of automatically adjusting the water content of the sludge comprises the following steps of: 1. starting the water pump 3 to supply water to the inlet of the second channel 52 at a constant speed, starting the slurry pump body 1 to suck sludge from the sludge suction port 11 and discharge the sludge from the sludge discharge port 12 to the first channel 51; 2. the first flow rate detecting means 61 and the second flow rate detecting means 62 detect the inlet flow rate and the outlet flow rate of the second passage 52, respectively, and the control means calculates the amount of water drawn from the first passage 51 into the second passage 52 from the difference between the inlet flow rate and the outlet flow rate of the second passage 52; 3. the control device adjusts the opening degree of the electromagnetic flow regulating valve 9 according to the water quantity sucked into the second channel 52 from the first channel 51 to control the water spraying speed of the water gun 4 so as to control the moisture content of the sludge. Since the amount of water sucked into the second channel 52 by the first channel 51 is positively correlated between the maximum and minimum values with the water content of the sludge, the flow difference between the second flow detection device 62 and the first flow detection device 61 is tested by simulating the pumping of sludge into a reasonable range of water content, the range of the flow difference between the second flow rate detecting means 62 and the first flow rate detecting means 61 when the water content of the sludge is in a reasonable range can be measured, whether the water content of the sludge is in the most reasonable range can be known according to the flow difference measured by the second flow detection device 62 and the first flow detection device 61, if the water content of the sludge is small, the water content of the sludge is too low, if the water content of the sludge is large, the water content of the sludge is too high, when the water content is too high, the control device controls the opening degree of the electromagnetic flow regulating valve 9 to reduce the water spraying speed of the water gun 4 so as to reduce the water content of the subsequently sucked sludge; when the water content is too low, the control device controls the opening degree of the electromagnetic flow regulating valve 9 to increase the water spraying speed of the water gun 4, so that the water content of the subsequently sucked sludge is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that it is obvious to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides an automatic adjust jam slush pump of silt moisture content, includes slush pump body (1), water tank (2), water pump (3) and squirt (4), be provided with silt sunction inlet (11) and silt discharge port (12) on slush pump body (1), its characterized in that: the sludge discharge port (12) is provided with a water absorption device (5), the water absorption device (5) comprises a first channel (51) communicated with the sludge discharge port (12) and a second channel (52) communicated with the water pump (3), a first flow detection device (61) and a second flow detection device (62) are respectively arranged on the water inlet side and the water outlet side of the second channel (52), a conical guide section (53), a spray area (54) and a vacuum chamber (55) are sequentially arranged in the second channel (52) between the first flow detection device (61) and the second flow detection device (62) along the water flow direction, the vacuum chamber (55) is communicated with the second channel (52) through a third channel (56), and one end of the third channel (56) connected with the second channel (52) is provided with filter cloth (7), a check valve (57) is arranged in the third channel (56), the outlet of the second channel (52) is respectively connected with the water tank (2) and the water gun (4) through two water pipelines (8), one of the water pipelines (8) is provided with an electromagnetic flow regulating valve (9), and the first flow detecting device (61), the second flow detecting device (62) and the electromagnetic flow regulating valve (9) are connected with a control device.

2. The anti-clogging mud pump capable of automatically adjusting the water content of the sludge as claimed in claim 1, wherein: the water absorption device (5) comprises a plurality of second channels (52) surrounding the periphery of the first channel (51), two ends of the second channels (52) are connected to a water collection cavity (58), the second channels (52) are connected with the first channel (51) through third channels (56), and the first flow detection device (61) and the second flow detection device (62) are arranged on the outer sides of the water collection cavities (58).

3. The anti-clogging mud pump capable of automatically adjusting the water content of the sludge as claimed in claim 1, wherein: the outlet end of the first channel (51) is provided with a motor (59), a rotating shaft (510) connected with an output shaft of the motor (59) axially penetrates through the first channel (51), a spiral plate (511) is wound on the rotating shaft (510), and the motor (59) drives the spiral plate (511) to extrude sludge in the first channel (51).

4. The anti-clogging mud pump capable of automatically adjusting the water content of the sludge as claimed in claim 3, wherein: the junction of the third channel (56) and the first channel (51) is located outside the spiral plate (511).

5. The anti-clogging mud pump capable of automatically adjusting the water content of the sludge as claimed in claim 3, wherein: be provided with filter cloth frame (71) in first passageway (51), be provided with filter cloth (7) in the clearance of filter cloth frame (71), filter cloth frame (71) be the cylinder set up in first passageway (51), filter cloth frame (71) with it strains water cavity (72) to form silt between first passageway (51) lateral wall, third passageway (56) with the junction of first passageway (51) is located silt is strained water cavity (72) lateral wall.

6. The dredging method of the anti-clogging slurry pump for automatically adjusting the water content of the sludge according to any one of claims 1 to 5, characterized by comprising the following steps: 1. starting a water pump (3) to supply water to the inlet of the second channel (52) at a constant speed, starting a mud pump body (1) to suck mud from a mud suction port (11) and discharge the mud from a mud discharge port (12) to the first channel (51); 2. a first flow rate detecting means (61) and a second flow rate detecting means (62) respectively detecting an inlet flow rate and an outlet flow rate of the second passage (52), the control means calculating an amount of water sucked from the first passage (51) into the second passage (52) from a difference between the inlet flow rate and the outlet flow rate of the second passage (52); 3. the control device adjusts the opening degree of the electromagnetic flow regulating valve (9) according to the water quantity sucked into the second channel (52) from the first channel (51) to control the water spraying speed of the water gun (4) so as to control the moisture content of the sludge.