Floating construction device for a sludge pump

The floating sludge pump design with a maceration assembly addresses the issue of impurity clogging by using a macerator blade and scraper to grind and discharge contaminants, ensuring continuous operation and preventing blockages.

DE202025104810U1Active Publication Date: 2026-01-08CHINA RAILWAY NO 3 GRP CO LTD +1
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Patent Information

Application Number
DE202025104810
Authority / Receiving Office
DE · DE
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-08-18
Publication Date
2026-01-08
Estimated Expiration
2035-08-31

AI Technical Summary

Technical Problem

Existing sludge pumps are prone to clogging due to the absence of a suitable macerating structure, allowing impurities such as branches, plastic bottles, and aquatic plant roots to enter the pump body, leading to potential blockages, motor overloading, and system shutdowns.

Method used

A floating design for a sludge pump incorporating a maceration assembly with a motor-driven macerator blade and scraper to grind impurities, coupled with a filter plate to trap and discharge them, ensuring continuous operation.

Benefits of technology

The device effectively prevents impurities from interfering with the sludge pump operation by grinding and discharging them, maintaining normal functioning and preventing blockages.

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Abstract

Floating construction device for a sludge pump, characterized in that it comprises a construction assembly, wherein a comminution assembly is mounted inside the construction assembly, wherein the construction assembly comprises a mounting plate, wherein the mounting plate is fixedly connected to a mounting chamber A on a lower bottom surface, wherein the mounting chamber A is provided on one side with a mounting chamber B, wherein the mounting chamber B is fixedly mounted to the lower bottom surface of the mounting plate, wherein a pair of blocking plates is fixedly connected between the mounting chamber A and the mounting chamber B, wherein a filter plate is provided between the two groups of blocking plates, wherein an adjusting element is mounted on both the mounting chamber A and the mounting chamber B, and wherein a sludge pump body is fixedly connected in the center of an upper surface of the mounting plate.wherein an inlet end of the sludge pump body extends through the mounting plate between the two groups of blocking plates, wherein the maceration assembly comprises a motor, the motor being mounted inside the mounting chamber A, and wherein an outlet end of the motor is connected to a drive shaft, the drive shaft being rigidly connected at a lower end to a maceration blade, the maceration blade being provided between the filter plate and the inlet end of the sludge pump body, a scraper being provided below the maceration blade, the scraper being mounted at the lower end of the drive shaft, the scraper being provided below the filter plate, and a connecting element being mounted between the mounting chamber A and the mounting chamber B.
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Description

Technical field

[0001] The present utility model relates to the technical field of sludge pumps, in particular a floating design device for a sludge pump. State of the art

[0002] A slurry pump is a machine used to pump liquids containing solid particles such as sludge and mortar. It is widely used in fields such as construction (e.g., pile foundation work), mining, oil drilling, and river dredging.

[0003] Chinese patent application number 201911203853.4 discloses a floating, environmentally friendly support structure for sludge pumps and its assembly method. The support structure comprises a sludge pump, a support frame, a floating device, a filter device, and a load-bearing element. The support frame consists of an upper support structure and two lower floating support structures arranged parallel to each other. These two lower floating support structures are rigidly connected to each other by connecting elements and / or the upper support structure. The sludge pump is located inside the upper support structure and moves with the support frame. The floating device is located inside the lower floating support structure.The filter device is located on the underside of the upper support frame, at the inlet of the sludge pump, and effectively filters coarse sand and stones from the sludge to prevent large material from entering and damaging the pump. Load-bearing elements are located at the four corners on the top of the upper support frame, facilitating transport and handling of the device. This device has a relatively simple structure, can be quickly assembled and put into operation, thus increasing the work rate.

[0004] The existing device is characterized by the integration of structural elements such as the mud pump, the support frame, and the floating device, resulting in a simple design and low operating costs. Furthermore, during the construction process of wells with backflow prevention, water or mud can contain large contaminants such as branches, plastic bottles, fabrics, metal fragments, or aquatic plant roots. If these contaminants enter the pump body, piping, or valves directly, they can potentially cause the mud pump impeller to become blocked, overloading and burning out the motor, or prevent the pipeline valves from closing, leading to leaks or system shutdowns and thus impacting construction progress. Disclosure of the registration

[0005] The technical problem that this utility model aims to solve is to overcome the shortcomings of the prior art. This utility model develops a floating design for a sludge pump that solves the problem that the current device is not equipped with a suitable macerating structure, allowing impurities to clog the pipeline.

[0006] To solve the above technical problems, the present utility model employs the following technical solution: a floating design device for a sludge pump comprising a structural assembly, wherein a comminuted assembly is mounted inside the structural assembly, wherein the structural assembly comprises a mounting plate, the mounting plate being rigidly connected to a mounting chamber A on a lower bottom surface, the mounting chamber A being provided on one side with a mounting chamber B, the mounting chamber B being rigidly mounted to the lower bottom surface of the mounting plate, wherein a pair of blocking plates being rigidly connected between the mounting chamber A and the mounting chamber B, wherein a filter plate being provided between the two groups of blocking plates, and wherein an adjusting element being mounted on both the mounting chamber A and the mounting chamber B.wherein a sludge pump body is fixedly connected in the center of an upper surface of the mounting plate, wherein an inlet end of the sludge pump body extends through the mounting plate between the two groups of blocking plates, wherein the macerator assembly comprises a motor, the motor being mounted inside mounting chamber A, and wherein an outlet end of the motor is connected to a drive shaft, the drive shaft being fixedly connected at a lower end to a macerator blade, the macerator blade being provided between the filter plate and the inlet end of the sludge pump body, a scraper being provided below the macerator blade, the scraper being mounted at the lower end of the drive shaft, the scraper being provided below the filter plate, and a connecting element being mounted between mounting chamber A and mounting chamber B.

[0007] Preferably, mounting grooves are formed on the mounting plate, wherein the mounting grooves are provided in two groups, wherein the two groups of mounting grooves are each connected to the mounting chamber A and the mounting chamber B respectively, wherein the mounting groove is provided with a cover plate, and wherein a pair of limiting rings is mounted symmetrically on both sides of the mounting plate.

[0008] While the above structure ensures easy mounting of the cover plate, the entire device can be limited by a limiting ring in conjunction with a rope or similar when the device is in use.

[0009] Preferably the cover plate is provided with a through-groove, wherein the through-groove is connected to the mounting groove, wherein a dust protection net is mounted inside the through-groove, wherein a rain cover is provided over the dust protection net, and wherein the rain cover is firmly mounted to the upper surface of the cover plate.

[0010] The above structure connects assembly chamber A and assembly chamber B to the outside world, while simultaneously preventing simple filtration processes of the air entering assembly chamber A and assembly chamber B during the process.

[0011] Preferably, a plurality of groups of heat dissipation fins are firmly connected to the lower bottom surface of the assembly chamber A, whereby the heat generated by the motor during operation is adapted to the heat dissipation fins.

[0012] The above structure improves the heat dissipation efficiency of assembly chamber A and ensures that the temperature inside assembly chamber A remains within the normal range.

[0013] Preferably, the assembly chamber B is rigidly connected to a boundary column on an inner bottom surface, wherein the boundary column is slidably connected to a counterweight block on an outer surface, and wherein a recess is formed on the counterweight block.

[0014] The above structure facilitates the weight balancing of assembly chamber B, furthermore ensures that the weights of assembly chamber A and assembly chamber B are equal, and prevents the mounting plate from tipping due to unequal weight.

[0015] Preferably, the adjusting element comprises a mounting column, wherein the mounting column is screwed to a nut at one end, wherein a floating plate is mounted on the mounting column, wherein the floating plate is limited by a nut.

[0016] The above structure allows the number of floating plates to be conveniently adjusted to the actual use of the entire device, thus optimizing the buoyancy of the entire device.

[0017] Preferably the output end of the motor is fixedly connected to a pulley A, the drive shaft is fixedly connected at an upper end to a pulley B, and a belt is fitted onto the outer surface of the pulley A and the pulley B.

[0018] The above structure enables the motor to drive the drive shaft, allowing the drive shaft to operate normally.

[0019] Preferably, the lower end of the drive shaft passes movably through the connecting element and extends to the outside of the connecting element, wherein the connecting element is designed as a hollow square tube, wherein the mounting chamber A and the mounting chamber B are connected by the connecting element, and wherein the pulley B and the belt are provided inside the connecting element.

[0020] The above structure prevents mud from impairing the transmission function of the belt.

[0021] Compared to the prior art, the present utility model has the following advantages: The device is assembled, and then the entire device is lowered into a specific position using a rope or other objects. The connecting pipe and the outlet end of the sludge pump body are then assembled, after which the sludge pump body and the motor are started. The sludge is drawn through the sludge pump body. During the suction process, the filter plate traps the impurities in the sludge. Simultaneously, under the action of the motor and the drive shaft, the macerator blade and the scraper are driven, and the macerator blade grinds the impurities in the sludge.Then the contaminants are discharged from the connecting pipe, and at the same time the scraper will clean the filter plate to prevent the device from blocking the filter plate and interfering with the normal operation of the sludge pump body.

[0022] The invention can be summarized as follows: The present utility model provides a floating device for a sludge pump. The existing device is characterized by the integration of structural elements such as the sludge pump, the support frame, and the floating device, resulting in a simple structure and low operating costs. Furthermore, during the construction process of wells with backflow prevention, water or sludge can contain large impurities such as branches, plastic bottles, or the roots of aquatic plants. If these impurities enter the pump body, the piping, or the valves directly, this can potentially cause the impeller of the sludge pump to become blocked, overloading and burning out the motor, or prevent the pipeline valves from closing, leading to leaks or system shutdowns, thus impacting construction progress.The present utility model provides a maceration assembly through which the sludge is drawn in by the sludge pump body. During the suction process, the filter plate blocks the impurities in the sludge, and the maceration blade grinds these impurities. The impurities are then discharged from the connecting pipe, and simultaneously, a scraper cleans the filter plate to prevent it from becoming blocked and interfering with the normal operation of the sludge pump body. Drawings of the disclosure

[0023] The disclosure of this utility model is explained with reference to the attached drawings. The attached drawings serve only for illustration and are not intended to limit the scope of protection of this utility model. The same designations are used for the same components in the attached drawings. These include: Fig. Figure 1 schematically shows a schematic representation of the overall sectional structure of the device according to a proposed embodiment of the present utility model; Fig. Figure 2 shows a schematic representation of the overall structure of the device according to a proposed embodiment of the present utility model; Fig. Figure 3 schematically shows a schematic representation of the overall structure of a construction assembly according to a proposed embodiment of the present utility model; Fig. Figure 4 shows a schematic representation of the overall structure of a part of the assembly according to a proposed embodiment of the present utility model; Fig. Figure 5 shows a schematic representation of the overall structure of a part of a comminution assembly according to a proposed embodiment of the present utility model; Fig. Figure 6 shows a schematic representation of the overall structure of part of a cover plate according to a proposed embodiment of the present utility model; Specific embodiments

[0024] It is self-evident that, in accordance with the technical solution of the present utility model, a person skilled in the art can propose a multitude of interchangeable design and implementation methods without altering the spirit of the present utility model. Therefore, the following specific embodiments and the accompanying drawings are merely exemplary representations of the technical solutions of the present utility model and should not be regarded as the entirety of the present utility model or as a limitation or restriction of the technical solutions of the present utility model.

[0025] According to one embodiment of the present utility model, as shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 to Fig. Figure 6 shows a floating construction device for a sludge pump, comprising a construction assembly 1, wherein a crushing assembly 2 is mounted inside the construction assembly 1, the construction assembly 1 comprising a mounting plate 11, the mounting plate 11 being fixedly connected to a mounting chamber A13 on a lower bottom surface, the mounting chamber A13 being provided on one side with a mounting chamber B14, the mounting chamber B14 being fixedly mounted to the lower bottom surface of the mounting plate 11, a pair of blocking plates 15 being fixedly connected between the mounting chamber A13 and the mounting chamber B14, a filter plate 16 being provided between the two groups of blocking plates 15, and an adjusting element 17 being mounted on both the mounting chamber A13 and the mounting chamber B15.wherein a sludge pump body 18 is fixedly connected in the center of an upper surface of the mounting plate 11, wherein an inlet end of the sludge pump body 18 extends through the mounting plate 11 between the two groups of blocking plates 15, wherein the comminuted assembly 2 comprises a motor 21, the motor being mounted inside the mounting chamber A13, and wherein an outlet end of the motor 21 is connected to a drive shaft 22, the drive shaft 22 being fixedly connected at a lower end to a comminuted blade 23, the comminuted blade 23 being provided between the filter plate 16 and the inlet end of the sludge pump body 18, a scraper 24 being provided below the comminuted blade 23, the scraper 24 being mounted at the lower end of the drive shaft 22, the scraper 24 being provided below the filter plate 16,and wherein a connecting element 25 is mounted between the assembly chamber A13 and the assembly chamber B14.

[0026] When extracting sludge using the device, the outlet pipe and the outlet end of the sludge pump body 18 are first assembled, and then the entire device is lowered into a specific position using an object such as a rope or chain. The main buoyancy force is provided to the device by the adjusting element 17, with the mounting plate 11 floating on the surface of the sludge, while the mounting chamber A13, the mounting chamber B14, the blocking plate 15, and the filter plate 16 are immersed in the sludge. Afterward, the sludge pump body 18 and the motor 21 are activated, and the sludge in the pit is pumped out through the sludge pump body 18.As the sludge is pumped out, the entire device lowers along with the sludge level in the water. Motor 21 also drives the drive shaft 22, causing it to rotate during the pumping process through the sludge pump body 18. This rotation, in turn, drives the macerator blade 23 and the scraper 24. The macerator blade 23 pulverizes the impurities in the sludge being drawn into the sludge pump body 18, reducing the particles contained within the sludge to smaller particles that are then discharged through the connecting pipe. The scraper 24, on the other hand, removes the impurities below the filter plate 16, preventing excessive impurities from interfering with the normal operation of the sludge pump body 18.

[0027] According to one embodiment of the present utility model, as shown in Fig. 1, Fig. 2 and Fig. Figure 6 shows a floating construction device for a sludge pump, wherein a mounting groove 111 is formed on the mounting plate 11, wherein the mounting groove 111 is provided in two groups, wherein the two groups of mounting grooves 111 each correspond to the mounting chamber A13 and the mounting chamber A13 respectively.the mounting chamber B14, wherein the mounting groove 111 is provided with a cover plate 12, and wherein a pair of limiting rings 112 is mounted symmetrically on both sides of the mounting plate 11, wherein the cover plate 12 is provided with a through-groove 121, wherein the through-groove 121 is connected to the mounting groove 111, wherein a dust protection net 122 is mounted inside the through-groove 121, wherein a rain guard 123 is provided over the dust protection net 122, and wherein the rain guard 123 is fixedly mounted to the upper surface of the cover plate 12, wherein a plurality of groups of heat dissipation fins 131 are fixedly connected to the lower bottom surface of the mounting chamber A13, wherein the heat generated by the motor 21 during operation is adapted to the heat dissipation fins 131.

[0028] The mounting groove 111 and the through-groove 121 allow outside air to circulate between mounting chamber A13 and mounting chamber B14, ensuring that the motor 21 can operate normally. Simultaneously, the installation of the heat dissipation fins 131 on the lower floor surface of mounting chamber A13 further increases the contact area between the mounting chamber A13 and the sludge, thus enhancing the overall heat dissipation performance of mounting chamber A13. Furthermore, the dust protection mesh 122 and the rain guard 123 prevent sludge and other particles from entering the interior of mounting chamber A13 and mounting chamber B14 through the through-groove 121 and thereby impairing the normal operation of the entire device.Furthermore, the device can be quickly lowered into a specific position with the help of the limiting ring 112 in conjunction with objects such as chains, and the device can also subsequently be operated in a limited position in conjunction with objects such as chains and bamboo poles.

[0029] According to one embodiment of the present utility model, as shown in Fig. 1, Fig. 2, Fig. 3 to Fig. Figure 4 shows a floating construction device for a sludge pump, wherein the mounting chamber B14 is fixedly connected to a limiting column 141 on an inner bottom surface, the limiting column 141 is slidably connected to a counterweight block 142 on an outer surface, and wherein a recess 143 is formed on the counterweight block 142, wherein the adjusting element 17 comprises a mounting column 171, wherein the mounting column 171 is screwed to a nut 172 at one end, and wherein a floating plate 173 is mounted on the mounting column 171, the floating plate 173 being limited by a nut 172.

[0030] Before lowering the device to the predetermined position, the weights of assembly chamber A13 and assembly chamber B14 are first adjusted to the same weight by placing the counterweight block 142 inside assembly chamber B14 to ensure that the device is in a horizontal position after being lowered into the sludge pit. Furthermore, the nut 172 can be removed before lowering, and the buoyancy of the entire device can be adjusted to the optimal level by changing the number of floating plates 173.

[0031] According to one embodiment of the present utility model, as shown in Fig. 1, Fig. 4 and Fig.Figure 5 shows a floating construction device for a sludge pump, wherein the output end of the motor 21 is fixedly connected to a pulley A211, wherein the drive shaft 22 is fixedly connected at an upper end to a pulley B221, and wherein a belt 222 is fitted on the outer surface of the pulley A211 and the pulley B221, wherein the lower end of the drive shaft 22 movably passes through the connecting element 25 and extends to the outside of the connecting element 25, wherein the connecting element 25 is designed as a hollow square tube, wherein the mounting chamber A13 and the mounting chamber B14 are connected by the connecting element 25, and wherein the pulley B221 and the belt 222 are provided inside the connecting element 25.

[0032] The assembly chamber A13 is connected to the assembly chamber B14 by inserting the hollow connecting element 25, and by inserting the hollow connecting element 25 the pulley B221 and the belt 222 are prevented from operating in a muddy environment, so that the pulley A211, the pulley B221 and the belt 222 can operate normally and it is ensured that the entire device functions normally.

[0033] The technical scope of application of the present utility model is not limited to the content of the above description, and technicians in the field may make a variety of deformations and changes to the above embodiments without deviating from the technical ideas of the present utility model, and these deformations and changes shall fall within the scope of protection of the present utility model. Reference symbol list: 1 assembly; 11 Mounting plate; 111 Mounting groove; 112 Boundary ring; 12 Cover plate; 121 Through groove; 122 Dust protection net; 123 Rain protection; 13 Assembly chamber A; 131 heat dissipation fins; 14 Assembly chamber B; 141 Boundary column; 142 Counterweight block; 143 recess; 15 Blocking plate; 16 filter plates; 17 Adjustment element; 171 Mounting column; 172 Mother; 173 floating plate; 18 sludge pump bodies; 2. Shredding assembly; 21 Engine; 211 Pulley A; 22 Drive shaft; 221 Pulley B; 222 belts; 23 Shredding blade; 24 wipers; 25 connecting elements. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] CN 201911203853.4

[0003]

Claims

[1] Floating construction device for a sludge pump, characterized bythat it comprises a structural assembly, wherein a crushing assembly is mounted inside the structural assembly, wherein the structural assembly comprises a mounting plate, the mounting plate being rigidly connected to a mounting chamber A on a lower bottom surface, the mounting chamber A being provided on one side with a mounting chamber B, the mounting chamber B being rigidly mounted to the lower bottom surface of the mounting plate, wherein a pair of blocking plates being rigidly connected between the mounting chamber A and the mounting chamber B, wherein a filter plate being provided between the two groups of blocking plates, wherein an adjusting element being mounted on both the mounting chamber A and the mounting chamber B, and wherein a sludge pump body being rigidly connected in the center of an upper surface of the mounting plate,wherein an inlet end of the sludge pump body extends through the mounting plate between the two groups of blocking plates, wherein the maceration assembly comprises a motor, the motor being mounted inside the mounting chamber A, and wherein an outlet end of the motor is connected to a drive shaft, the drive shaft being rigidly connected at a lower end to a maceration blade, the maceration blade being provided between the filter plate and the inlet end of the sludge pump body, a scraper being provided below the maceration blade, the scraper being mounted at the lower end of the drive shaft, the scraper being provided below the filter plate, and a connecting element being mounted between the mounting chamber A and the mounting chamber B. [2] Floating construction device for a sludge pump according to claim 1, characterized by, that mounting grooves are formed on the mounting plate, wherein the mounting grooves are provided in two groups, wherein the two groups of mounting grooves are each connected to the mounting chamber A and the mounting chamber B respectively, wherein the mounting groove is provided with a cover plate, and wherein a pair of limiting rings is mounted symmetrically on both sides of the mounting plate. [3] Floating construction device for a sludge pump according to claim 2, characterized by that the cover plate is provided with a through-groove, wherein the through-groove is connected to a mounting groove, wherein a dust protection net is mounted inside the through-groove, wherein a rain protection net is provided over the dust protection net, and wherein the rain protection net is firmly mounted to the upper surface of the cover plate. [4] Floating construction device for a sludge pump according to claim 1, characterized by, that a large number of groups of heat dissipation fins are firmly connected to the lower bottom surface of the assembly chamber A, whereby the heat generated by the motor during operation is adapted to the heat dissipation fins. [5] Floating construction device for a sludge pump according to claim 1, characterized by , that the assembly chamber B is rigidly connected to a boundary column on an inner floor surface, wherein the boundary column is slidably connected to a counterweight block on an outer surface, and wherein a recess is formed on the counterweight block. [6] Floating construction device for a sludge pump according to claim 1, characterized by that the adjusting element comprises a mounting column, wherein the mounting column is screwed to a nut at one end, wherein a floating plate is mounted on the mounting column, wherein the floating plate is limited by a nut. [7] Floating construction device for a sludge pump according to claim 1, characterized by , that the output end of the motor is fixedly connected to a pulley A, wherein the drive shaft is fixedly connected at an upper end to a pulley B, and wherein a belt is fitted onto the outer surface of the pulley A and the pulley B. [8] Floating construction device for a sludge pump according to claim 7, characterized by , that the lower end of the drive shaft movably passes through the connecting element and extends to the outside of the connecting element, wherein the connecting element is designed as a hollow square tube, wherein the mounting chamber A and the mounting chamber B are connected by the connecting element, and wherein the pulley B and the belt are provided inside the connecting element.

Citation Information

Patent Citations

  • 201911203853.4