Dredge pump device for cutter suction dredger

Abstract

The invention relates to the technical field of dredge pumps, and discloses a dredge pump device for a cutter suction dredger, which comprises a dredge pump device, the dredge pump device comprises a dredge pump main body, the side surface of the dredge pump main body is provided with an output pipeline, the position of the dredge pump main body far away from the output pipeline is provided with an input pipeline, and the side surface of the input pipeline is provided with a conveying pipeline; an impurity removal mechanism is installed at the position, away from the input pipeline, of the conveying pipeline, a compressed air supply device is installed on the side face of the impurity removal mechanism, and a metal adsorption device is installed at the bottom of the impurity removal mechanism. By arranging the metal adsorption device, a worker can recover metal impurities conveniently, it is ensured that an electromagnet can conduct metal impurity adsorption work normally, and the situation that the metal impurities damage the smashing device and the mud pump device is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of mud pumps, and more particularly to a mud pump device for a cutter suction dredger. Background Art

[0002] The mud pump is one of the dredging devices of the cutter suction dredger. The common mud pump is mainly composed of a pump head, a sealing system component, a bearing component, a bracket, a power supply device and other mechanisms. The specific working process of the mud pump for dredging is as follows: when the mud pump starts working, the power supply device drives the impeller to rotate in the pump casing. The rotation of the impeller generates centrifugal force, so that a vacuum is formed in the center of the impeller, and then the mud is sucked into the center of the mud pump through the suction pipe; as the impeller continues to rotate, the mud is thrown away from the impeller and ejected to the surroundings under the action of centrifugal force. The mud flows in the pump casing and is discharged from the mud pump through the outlet pipe. The flow rate and pressure of the mud pump can be achieved by adjusting the speed of the impeller, the shape and size of the pump casing and other factors; During the use of the mud pump on the suction dredger, various large impurities appear in the riverbed silt, causing certain damage to the components of the mud pump. In order to avoid the above situation, a crushing device is installed at the inlet of the suction pipe to crush the large impurities to prevent the large impurities from damaging the internal components of the mud pump. However, there is a certain amount of metal impurities in the riverbed silt, which causes certain damage to the crushing device. In the prior art, there is no preventive treatment for this phenomenon, which causes certain damage to the crushing device and the mud pump, and then leads to certain economic losses. At the same time, when the crushing device is in operation, some impurities may not be completely crushed. Therefore, large impurities enter the mud pump and cause certain damage to the mud pump components. In order to avoid the above situation, a filter plate is installed inside the suction pipe to filter large impurities. However, large impurities accumulate on the surface of the filter plate, thereby affecting the filtering effect of the filter plate, thereby reducing the working efficiency of the mud pump. Summary of the invention

[0003] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mud pump device for a cutter suction dredger to solve the problems existing in the above-mentioned background technology.

[0004] The present invention provides the following technical solution: a mud pump device for a cutter suction dredger, comprising a mud pump device, the mud pump device comprising a mud pump body, an output pipe is installed on the side of the mud pump body, an input pipe is installed on the mud pump body at a position away from the output pipe, a delivery pipe is installed on the side of the input pipe, a debris removal mechanism is installed on the delivery pipe at a position away from the input pipe, a compressed air supply device is installed on the side of the debris removal mechanism, and a metal adsorption device is installed at the bottom of the debris removal mechanism.

[0005] Furthermore, the impurity removal mechanism includes an impurity removal device, the inner wall of which is installed with an annular frame, the inner wall of the annular frame is movably connected with a filter plate, the top of the filter plate is installed with a first extrusion column, the outer wall of the top of the first extrusion column is movably connected with a first hollow column, the top of the first extrusion column is installed with a first spring, and the inner wall of the first hollow column is installed with a first sensor near the first spring.

[0006] Furthermore, an outer shell is installed on the outer wall of the impurity removal device at a position close to the filter plate, a first electrically-controlled lifting column is installed on the inner wall of the outer shell, a first partition is installed on the inner wall of the outer shell at a position close to the first electrically-controlled lifting column, a telescopic scraping plate is installed on the side of the first electrically-controlled lifting column, the telescopic scraping plate is composed of two groups of scraping support plates socketed together, a long spring is installed inside the telescopic scraping plate, which is conducive to driving the telescopic scraping plate to be in a stretched state, the telescopic scraping plate contacts the filter plate, and scrapes and cleans the residual impurities on the surface of the filter plate, a storage cylinder is installed on the side of the impurity removal device, a baffle is installed on the inner wall of the top of the storage cylinder, and torsion spring devices are provided at both ends of the baffle, which is conducive to driving the baffle in a rotating state to return to its original position.

[0007] Furthermore, a main conveying pipe is installed through the bottom of the impurity removal device, and a crushing device is installed on the inner wall of the bottom of the main conveying pipe to crush the impurities.

[0008] Furthermore, the compressed air providing device includes an air pump, a first delivery hose is installed at the output end of the air pump, a second delivery hose is installed at a position away from the air pump, a Y-shaped tube is installed at the bottom of the second delivery hose, two groups of solenoid valves are installed at the bottom of the Y-shaped tube, and an auxiliary delivery tube is installed on the inner wall of the Y-shaped tube near a group of solenoid valves.

[0009] Furthermore, the metal adsorption device includes a circular plate, the outer wall of the circular plate is connected with a transmission rod, a telescopic column is installed on the side of the transmission rod, the telescopic column is composed of a plurality of hollow columns connected in a socket, a compressed air providing device generates compressed air and transmits it to the inside of the telescopic column, driving the telescopic column to be in a stretched state, and a servo motor is installed on the outer wall of the telescopic column at a position away from the transmission rod, and the servo motor drives the telescopic column to rotate.

[0010] Furthermore, a hollow plate is installed at the bottom of the telescopic column, an extrusion plate is sleeved on the inner wall of the hollow plate, an electromagnet is installed at the bottom of the extrusion plate, a power supply device is installed on the top of the extrusion plate, the power supply device inputs a quantitative current to the electromagnet to control the electromagnet to generate magnetic attraction, a compression air ring is installed on the outer wall of the hollow plate, second springs are installed at the four corners of the top of the extrusion plate, an extrusion support rod is installed on the top of the extrusion plate near the power supply device, and a second sensor is arranged on the top of the extrusion support rod.

[0011] Technical effects and advantages of the present invention: 1. The present invention is provided with an impurity removal mechanism, which is conducive to the impurities that have not been completely crushed to stay on the surface of the filter plate. Under the drive of the sludge flowing inside the main conveying pipe, the impurities that have not been crushed exert an extrusion force on the filter plate. When the weight of the impurities staying on the surface of the filter plate exceeds the rated value, the extrusion force generated by the impurities will drive the filter plate and the first extrusion column to contact the first sensor, so as to detect that the weight of the impurities on the surface of the filter plate exceeds the rated value, control the first electric control lifting column to input current, control the telescopic scraping plate to move out of the housing, and drive the telescopic scraping plate to be in the stretching device under the action of the long spring, so as to scrape and clean the impurities on the surface of the filter plate. Under the drive of the telescopic scraping plate, the impurities after cleaning pass through the extrusion baffle, driving the baffle to be in an open state, so that the impurities scraped and cleaned are transported to the storage tube for storage management, so as to achieve the function of automatically cleaning the residual impurities on the surface of the filter plate.

[0012] 2. The present invention is provided with a metal adsorption device, which is conducive to the metal impurities adsorbed on the surface of the electromagnet exceeding the rated value, driving the extrusion plate and the extrusion support rod to move downward, and the extrusion support rod no longer contacts the second sensor. At this time, it is judged that the metal impurities adsorbed on the surface of the electromagnet exceed the rated value, and the servo motor inputs current to drive the telescopic column to rotate. At the same time, the compressed air supply device inputs compressed air to the telescopic column and the compressed air ring, driving the compressed air ring to be inflated, so as to generate buoyancy, and assist the hollow plate to move toward the impurity removal device. At the same time, the telescopic column is in a stretched state, which is conducive to controlling the hollow plate to move to the vicinity of the impurity removal device, facilitating the staff to recover metal impurities, ensuring that the electromagnet can normally perform the metal impurity adsorption operation, and avoiding the metal impurities from damaging the crushing device and the mud pump device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the overall structure of the impurity removal mechanism of the present invention.

[0015] Figure 3 It is a schematic cross-sectional view of the overall structure of the impurity removal device of the present invention.

[0016] Figure 4 It is a schematic cross-sectional view of the overall structure of the housing of the present invention.

[0017] Figure 5 It is a schematic diagram of the overall structure of the storage cylinder of the present invention.

[0018] Figure 6 It is a schematic cross-sectional view of the overall structure of the annular frame of the present invention.

[0019] Figure 7 It is a schematic cross-sectional view of the overall structure of the first hollow column of the present invention.

[0020] Figure 8 It is a schematic diagram of the overall structure of the circular plate of the present invention.

[0021] Fig. 9 It is a schematic cross-sectional view of the overall structure of the telescopic column of the present invention.

[0022] Fig.10 It is a schematic cross-sectional view of the overall structure of the hollow slab of the present invention.

[0023] The accompanying drawings are marked as follows: 1. mud pump device; 101. mud pump body; 102. output pipeline; 103. input pipeline; 104. delivery pipeline; 2. impurity removal mechanism; 201. impurity removal device; 202. storage cylinder; 2021. baffle; 203. shell; 2031. first electric lifting column; 2032. first partition; 2033. telescopic scraping plate; 204. main delivery pipe; 205. annular frame; 206. filter plate; 207. first hollow column; 208. first extrusion column; 209. first spring; 21 0. First sensor; 3. Compressed air providing device; 301. Air pump; 302. First delivery hose; 303. Second delivery hose; 304. Y-tube; 305. Auxiliary delivery pipe; 4. Metal adsorption device; 401. Round plate; 402. Telescopic column; 403. Servo motor; 404. Transmission rod; 405. Hollow plate; 406. Extrusion plate; 407. Electromagnet; 408. Compressed air ring; 409. Extrusion support rod; 410. Second sensor; 411. Power providing device; 412. Second spring. DETAILED DESCRIPTION

[0024] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative. The mud pump device for a cutter suction dredger involved in the present invention is not limited to the various structures recorded in the following embodiments. All other embodiments obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0025] Reference Figure 1 and Figure 2The present invention provides a mud pump device for a cutter suction dredger, comprising a mud pump device 1, wherein the mud pump device 1 comprises a mud pump body 101, an output pipe 102 is installed on the side of the mud pump body 101, an input pipe 103 is installed on the mud pump body 101 at a position away from the output pipe 102, a delivery pipe 104 is installed on the side of the input pipe 103, a debris removal mechanism 2 is installed on the delivery pipe 104 at a position away from the input pipe 103, a compressed air providing device 3 is installed on the side of the debris removal mechanism 2, and a metal adsorption device 4 is installed at the bottom of the debris removal mechanism 2.

[0026] In the embodiment of the present application, the specific working process of the embodiment of this part of the application is: the suction dredger moves to the designated area, the mud pump body 101 inputs current to generate sludge adsorption force and transports it to the interior of the impurity removal mechanism 2 through the input pipe 103 and the delivery pipe 104 to perform sludge adsorption operation. During the adsorption process, the metal adsorption device 4 adsorbs the metal impurities in the designated area to prevent the metal impurities from damaging the crushing device inside the impurity removal mechanism 2.

[0027] Reference Figures 1 to 7 As shown, the present invention provides a mud pump device for a cutter suction dredger, wherein the impurity removal mechanism 2 comprises an impurity removal device 201, an annular frame 205 is installed on the inner wall of the impurity removal device 201, a filter plate 206 is movably sleeved on the inner wall of the annular frame 205, a first extrusion column 208 is installed on the top of the filter plate 206, a first hollow column 207 is movably sleeved on the outer wall of the top of the first extrusion column 208, a first spring 209 is installed on the top of the first extrusion column 208, and a first sensor 210 is installed on the inner wall of the first hollow column 207 near the first spring 209; The outer wall of the impurity removing device 201 is provided with a shell 203 at a position close to the filter plate 206, and the inner wall of the shell 203 is provided with a first electrically-controlled lifting column 2031, and the inner wall of the shell 203 is provided with a first partition 2032 at a position close to the first electrically-controlled lifting column 2031, and the side of the first electrically-controlled lifting column 2031 is provided with a telescopic scraping plate 2033, and the telescopic scraping plate 2033 is composed of two groups of scraping support plates connected in a sleeve manner, and a long spring is installed inside the telescopic scraping plate 2033, which is conducive to driving the telescopic scraping plate 2033 to be in a stretched state, and the telescopic scraping plate 2033 contacts the filter plate 206 to scrape and clean the impurities remaining on the surface of the filter plate 206, and a storage cylinder 202 is installed on the side of the impurity removing device 201, and a baffle 2021 is installed on the inner wall of the top of the storage cylinder 202, and torsion spring devices are provided at both ends of the baffle 2021, which is conducive to driving the baffle 2021 in a rotating state to return to its original position; A main conveying pipe 204 is installed through the bottom of the impurity removing device 201, and a crushing device is installed on the inner wall of the bottom of the main conveying pipe 204 to crush the impurities.

[0028] Both sides of the telescopic scraping plate 2033 are in arc shape, which is conducive to the telescopic scraping plate 2033 moving to the inner wall of the shell 203.

[0029] In the embodiment of the present application, the specific working process of this part of the embodiment of the application is as follows: the mud pump device 1 generates sludge adsorption force, which is transported to the inside of the main conveying pipe 204 through the impurity removal device 201 to adsorb the sludge on the riverbed. The impurities in the sludge are crushed in the crushing device to prevent large impurities from damaging the mud pump device 1. At the same time, impurities that are not completely crushed remain on the surface of the filter plate 206. Driven by the sludge flowing inside the main conveying pipe 204, the uncrushed impurities are driven to apply an extrusion force to the filter plate 206. When the weight of the impurities remaining on the surface of the filter plate 206 exceeds the rated value, the extrusion force generated by the impurities will drive the filter plate 206 and the first extrusion column 208 to contact. The first sensor 210 is used to detect that the amount of impurities on the surface of the filter plate 206 exceeds the rated value, controls the input current of the first electric-controlled lifting column 2031, controls the telescopic scraping plate 2033 to move out of the interior of the shell 203, and drives the telescopic scraping plate 2033 to be in the stretching device under the action of the long spring, so as to scrape and clean the impurities on the surface of the filter plate 206. The cleaned impurities are driven by the telescopic scraping plate 2033 to squeeze the baffle 2021, driving the baffle 2021 to be in an open state, so that the scraped and cleaned impurities are transported to the interior of the storage tube 202 for storage and management, so as to achieve the effect of automatically cleaning the residual impurities on the surface of the filter plate 206.

[0030] Reference Figure 2 as well as Figures 8 to 9 As shown, the present invention provides a mud pump device for a cutter suction dredger, the compressed air providing device 3 includes an air pump 301, a first delivery hose 302 is installed at the output end of the air pump 301, a second delivery hose 303 is installed at a position away from the air pump 301, a Y-shaped tube 304 is installed at the bottom of the second delivery hose 303, two groups of solenoid valves are installed at the bottom of the Y-shaped tube 304, and an auxiliary delivery tube 305 is installed on the inner wall of the Y-shaped tube 304 at a position close to a group of solenoid valves.

[0031] In the embodiment of the present application, the specific working process of this part of the application embodiment is: the air pump 301 generates compressed air which is input into the metal adsorption device 4 through the first delivery hose 302, the second delivery hose 303, the Y-shaped tube 304 and the auxiliary delivery tube 305, which is conducive to the cleaned metal impurities rising to the position of the impurity removal device 201, making it convenient for the staff to carry out cleaning operations.

[0032] Reference Figure 1 as well as Figures 8 to 10As shown, the present invention provides a mud pump device for a cutter suction dredger, the metal adsorption device 4 includes a circular plate 401, the outer wall of the circular plate 401 is penetrated and connected with a transmission rod 404, a telescopic column 402 is installed on the side of the transmission rod 404, and the telescopic column 402 is composed of a plurality of sets of hollow columns connected together, a compressed air providing device 3 generates compressed air and delivers it to the inside of the telescopic column 402, driving the telescopic column 402 to be in a stretched state, and a servo motor 403 is installed on the outer wall of the telescopic column 402 at a position away from the transmission rod 404, and the servo motor 403 drives the telescopic column 402 to rotate; A hollow plate 405 is installed at the bottom of the telescopic column 402, and an extrusion plate 406 is sleeved on the inner wall of the hollow plate 405. An electromagnet 407 is installed at the bottom of the extrusion plate 406, and a power supply device 411 is installed on the top of the extrusion plate 406. The power supply device 411 inputs a quantitative current to the electromagnet 407 to control the electromagnet 407 to generate a magnetic attraction. A compression air ring 408 is installed on the outer wall of the hollow plate 405, and second springs 412 are installed at the four corners of the top of the extrusion plate 406. An extrusion support rod 409 is installed on the top of the extrusion plate 406 near the power supply device 411, and a second sensor 410 is arranged on the top of the extrusion support rod 409.

[0033] In the embodiment of the present application, the specific working process of the embodiment of this part of the application is as follows: when the mud pump device 1 performs mud digging operation, the power supply device 411 controls the electromagnet 407 to generate magnetism, and performs magnetic suction recovery operation on the metal impurities near the main conveying pipe 204. When the metal impurities adsorbed on the surface of the electromagnet 407 exceed the rated value, the extrusion plate 406 and the extrusion support rod 409 are driven to move downward, and the extrusion support rod 409 no longer contacts the second sensor 410. At this time, it is judged that the metal impurities adsorbed on the surface of the electromagnet 407 exceed the rated value, and the servo motor 403 inputs current to drive the telescopic column 402 to rotate 180 degrees, and at the same time compresses the air. The air providing device 3 inputs compressed air to the telescopic column 402 and the compressed air ring 408, driving the compressed air ring 408 to be inflated to generate buoyancy, thereby assisting the hollow plate 405 to move toward the impurity removal device 201. At the same time, the telescopic column 402 is in a stretched state, which is beneficial for controlling the hollow plate 405 to move to the vicinity of the impurity removal device 201, making it convenient for the staff to recover metal impurities and ensuring that the electromagnet 407 can normally perform the metal impurity adsorption operation, thereby avoiding damage to the crushing device and the mud pump device 1 caused by metal impurities. At the same time, the recovered metal impurities can also provide an additional source of income for the staff.

[0034] The specific workflow of this application is as follows: Step 1: The cutter suction dredger moves to the designated area, and the mud pump body 101 inputs current to generate sludge adsorption force and transports the sludge to the interior of the impurity removal mechanism 2 through the input pipe 103 and the delivery pipe 104 to perform sludge adsorption operation. During the adsorption process, the metal adsorption device 4 adsorbs the metal impurities in the designated area to prevent the metal impurities from damaging the crushing device inside the impurity removal mechanism 2; Step 2: The mud pump device 1 generates mud adsorption force, which is transported to the main delivery pipe 204 through the impurity removal device 201 to adsorb the mud on the riverbed. The impurities in the mud are crushed in the crushing device to prevent large impurities from damaging the mud pump device 1. At the same time, impurities that are not completely crushed remain on the surface of the filter plate 206. Driven by the mud flowing in the main delivery pipe 204, the uncrushed impurities exert an extrusion force on the filter plate 206. When the weight of the impurities remaining on the surface of the filter plate 206 exceeds the rated value, the extrusion force generated by the impurities will drive the filter plate 206 and the first extrusion column 208 to contact the first sensor 210, so as to prevent the impurities from being completely crushed and causing damage to the mud pump device 1. It is convenient to detect that the impurity mass on the surface of the filter plate 206 exceeds the rated value, control the input current of the first electric control lifting column 2031, control the telescopic scraping plate 2033 to move out of the interior of the housing 203, and drive the telescopic scraping plate 2033 to be in the stretching device under the action of the long spring, so as to scrape and clean the impurities on the surface of the filter plate 206. The cleaned impurities are driven by the telescopic scraping plate 2033 to squeeze the baffle 2021, and the baffle 2021 is driven to be in an open state, so that the scraped and cleaned impurities are transported to the interior of the storage tube 202 for storage management, so as to achieve the effect of automatically cleaning the residual impurities on the surface of the filter plate 206; Step 3: The air pump 301 generates compressed air which is input into the metal adsorption device 4 through the first delivery hose 302, the second delivery hose 303, the Y-shaped tube 304 and the auxiliary delivery tube 305, so as to help the cleaned metal impurities rise to the position of the impurity removal device 201, and facilitate the cleaning operation of the staff; When the mud pump device 1 performs mud digging, the power supply device 411 controls the electromagnet 407 to generate magnetism, and performs magnetic suction recovery operation on the metal impurities near the main conveying pipe 204. When the metal impurities adsorbed on the surface of the electromagnet 407 exceed the rated value, the extrusion plate 406 and the extrusion support rod 409 are driven to move downward, and the extrusion support rod 409 no longer contacts the second sensor 410. At this time, it is judged that the metal impurities adsorbed on the surface of the electromagnet 407 exceed the rated value, and the servo motor 403 inputs current to drive the telescopic column 402 to rotate 180 degrees. At the same time, the compressed air supply device 3 pushes the telescopic column 402 to the compressed air supply device 3. 2 and the compressed air ring 408 input compressed air to drive the compressed air ring 408 to be inflated so as to generate buoyancy, and assist the hollow plate 405 to move toward the impurity removal device 201. At the same time, the telescopic column 402 is in a stretched state, which is conducive to controlling the hollow plate 405 to move to the vicinity of the impurity removal device 201, so as to facilitate the staff to recover the metal impurities and ensure that the electromagnet 407 can normally perform the metal impurity adsorption operation, so as to avoid the metal impurities from damaging the crushing device and the mud pump device 1. At the same time, the recovered metal impurities can also provide an additional source of income for the staff.

[0035] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change; Secondly: In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other; Finally: 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 dredge pump device for a cutter suction dredger, comprising a dredge pump device (1), characterized in that: The mud pump device (1) comprises a mud pump body (101), an output pipe (102) is installed on the side of the mud pump body (101), an input pipe (103) is installed on the mud pump body (101) at a position away from the output pipe (102), a delivery pipe (104) is installed on the side of the input pipe (103), a debris removal mechanism (2) is installed on the delivery pipe (104) at a position away from the input pipe (103), a compressed air supply device (3) is installed on the side of the debris removal mechanism (2), and a metal adsorption device (4) is installed at the bottom of the debris removal mechanism (2).

2. A dredge pump device for a cutter suction dredger according to claim 1, characterized in that: The impurity removal mechanism (2) comprises an impurity removal device (201), an inner wall of the impurity removal device (201) is installed with an annular frame (205), the inner wall of the annular frame (205) is movably sleeved with a filter plate (206), a first extrusion column (208) is installed on the top of the filter plate (206), a first hollow column (207) is movably sleeved on the outer wall of the top of the first extrusion column (208), a first spring (209) is installed on the top of the first extrusion column (208), and a first sensor (210) is installed on the inner wall of the first hollow column (207) at a position close to the first spring (209).

3. A dredge pump device for a cutter suction dredger according to claim 2, characterized in that: The outer wall of the impurity removal device (201) is provided with a shell (203) at a position close to the filter plate (206); the inner wall of the shell (203) is provided with a first electrically-controlled lifting column (2031); the inner wall of the shell (203) is provided with a first partition (2032) at a position close to the first electrically-controlled lifting column (2031); a telescopic scraping plate (2033) is provided on the side of the first electrically-controlled lifting column (2031); the telescopic scraping plate (2033) is composed of two sets of scraping support plates sleeved together; the telescopic scraping plate (2033) is provided with a first partition (2032) at a position close to the first electrically-controlled lifting column (2031); 3) A long spring is installed inside, which is conducive to driving the telescopic scraping plate (2033) to be in a stretched state. The telescopic scraping plate (2033) contacts the filter plate (206) to scrape and clean the impurities remaining on the surface of the filter plate (206). The impurity removal device (201) is installed on the side of the storage cylinder (202), and the inner wall of the top of the storage cylinder (202) is installed with a baffle (221). Torsion spring devices are arranged at both ends of the baffle (221), which is conducive to driving the baffle (221) in a rotating state to return to its original position.

4. A dredge pump device for a cutter suction dredger according to claim 2, characterized in that: A main conveying pipe (204) is installed through the bottom of the impurity removal device (201), and a crushing device is installed on the inner wall of the bottom of the main conveying pipe (204) to crush the impurities.

5. A dredge pump device for a cutter suction dredger according to claim 1, characterized in that: The compressed air providing device (3) comprises an air pump (301), a first delivery hose (302) being installed at the output end of the air pump (301), a second delivery hose (303) being installed at a position away from the air pump (301) on the first delivery hose (302), a Y-shaped tube (304) being installed at the bottom of the second delivery hose (303), two groups of solenoid valves being installed at the bottom of the Y-shaped tube (304), and an auxiliary delivery tube (305) being installed at a position close to one group of solenoid valves on the inner wall of the Y-shaped tube (304).

6. A dredge pump device for a cutter suction dredger according to claim 1, characterized in that: The metal adsorption device (4) comprises a circular plate (401), the outer wall of the circular plate (401) is penetrated by a transmission rod (404), a telescopic column (402) is installed on the side of the transmission rod (404), the telescopic column (402) is composed of a plurality of hollow columns connected in a sleeve, the compressed air supply device (3) generates compressed air and delivers it to the inside of the telescopic column (402), driving the telescopic column (402) to be in a stretched state, and a servo motor (403) is installed on the outer wall of the telescopic column (402) at a position away from the transmission rod (404), and the servo motor (403) drives the telescopic column (402) to rotate.

7. A dredge pump device for a cutter suction dredger according to claim 6, characterized in that: A hollow plate (405) is installed at the bottom of the telescopic column (402), an extrusion plate (406) is sleeved on the inner wall of the hollow plate (405), an electromagnet (407) is installed at the bottom of the extrusion plate (406), a power supply device (411) is installed at the top of the extrusion plate (406), the power supply device (411) inputs a quantitative current to the electromagnet (407) to control the electromagnet (407) to generate a magnetic attraction force, a compression air ring (408) is installed on the outer wall of the hollow plate (405), second springs (412) are installed at the four corners of the top of the extrusion plate (406), an extrusion support rod (409) is installed at the top of the extrusion plate (406) at a position close to the power supply device (411), and a second sensor (410) is arranged on the top of the extrusion support rod (409).

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