Sludge removing device for river crab culture pond

Abstract

The utility model provides a river crab culture pond sludge removing device which comprises supporting legs fixed to the two sides of the bottom of a main frame body, a handle convenient for moving the device is fixed to the side face of the main frame body, a feeding mechanism for sucking filtered sludge is installed at the bottom of the main frame body, and large impurities and mud blocks can be prevented from entering the device. The blocking risk of the pump is reduced, and the reliability and stability of equipment are improved. A stirring mechanism for uniformly stirring the sludge to avoid blockage is mounted at the bottom of the main frame body, so that a solidified layer of the sludge can be broken, and the device is easier to suck sediments and quickens the dredging process. Meanwhile, the separation net can protect the stirrer mechanism from being directly impacted by large sundries, abrasion of the stirring blades is reduced, and the service life of the stirring blades is prolonged. And a discharge port for discharging sludge is formed in the rear of the main frame body, and an outlet of the discharge port is of an anti-skid design, so that the hose cannot fall off due to the impact of the sludge in the working process.

Description

Technical Field

[0001] The utility model belongs to the technical field of pond sludge cleaning, in particular to a sludge removing device for river crab breeding ponds. Background Art

[0002] During the aquaculture process of ponds, due to the activities of farmed fish and a large amount of feeding, a large amount of silt will be deposited after a few years. The silt contains a large amount of corrupt organic matter, which often breeds fish pathogens, consumes dissolved oxygen in pond water, and releases toxic substances. However, some existing dredging devices are not equipped with a stirring device at the bottom. In the absence of stirring, the silt entering the device may be deposited near the feed port, which will affect the efficiency of the device to absorb the silt. Since the silt cannot be effectively stirred, it may cause uneven sludge suction efficiency, thereby affecting the overall cleaning effect. Operators may need additional labor or equipment to ensure that the silt can enter the cleaning device smoothly, which increases the complexity and labor intensity of the operation. At the same time, some dredging devices are not equipped with a filtering device at the feed port. Without a filtering device, it is difficult to effectively screen the sucked silt, which may cause larger debris and particles to enter the interior of the equipment, thereby affecting the normal operation of the equipment. If larger particles of impurities enter the dredging device directly without filtering, it may accelerate the wear inside the equipment and reduce the service life of the equipment.

[0003] The existing authorized public number is CN 201714680 U, which discloses a mud removal device for river crab breeding ponds, including: a motor and a main impeller are installed in the desilting pump housing, a water outlet is formed on the desilting pump housing, and a stirring impeller is installed below the main impeller; the stirring impeller is composed of a mincing blade in a blade impeller installed in a water inlet hole in a blade seat; wherein the blade impeller is composed of an impeller blade and a mincing blade formed on an impeller seat; the blade seat is composed of a surface, a bottom surface, a water inlet hole and a bottom surface boss formed on a seat frame. The beneficial effect of the utility model is that it is suitable for extracting biogas slurry containing animal hair, building yarn, powder sand, silt, tailings slurry, ore sand, iron sand ore, rivers, lakes, reservoirs, ports, municipal projects, rural biogas tanks and other sand extraction and desilting projects.

[0004] However, there is no filtering device at the feed port of the above-mentioned device. If larger particles of impurities enter the dredging device directly without being filtered, it may accelerate the wear inside the equipment and reduce the service life of the equipment. It is difficult to effectively screen the sucked sludge, which may cause larger debris and particles to enter the equipment, thereby affecting the normal operation of the equipment. At the same time, the stirring device of the device is installed inside the shell. During the stirring process, solid particles may cause wear to the impeller and other parts inside the dredging pump, reducing the service life of the equipment. The built-in stirring device will make the structure of the dredging pump more complicated, which may make maintenance and repair work more difficult and time-consuming. Therefore, it is necessary to propose a sludge removal device for river crab breeding ponds to solve the above problems. Utility Model Content

[0005] The technical content of the utility model is to provide a device for removing sludge from a river crab breeding pond.

[0006] In order to solve the above problems, the utility model provides a sludge removing device for river crab breeding ponds, comprising: supporting legs fixed on both sides of the bottom of a main frame, handles for conveniently moving the device are fixed on the sides of the main frame, a feeding mechanism for sucking in filtered sludge is installed at the bottom of the main frame, a stirring mechanism for stirring the sludge evenly to avoid blockage is installed at the bottom of the main frame, a driving motor for controlling the stirring mechanism is installed at the center of the top of the main frame, and a discharge port for discharging the sludge is provided at the rear of the main frame.

[0007] As a further solution of the present invention, two sets of handles are fixed opposite to each other on the left and right sides of the main frame to facilitate moving the device.

[0008] As a further solution of the utility model, the stirring mechanism includes a transfer column, stirring blades and an isolation net. One end of the transfer column is fixed to the bottom of the main frame, and the other side is rotatably connected to the stirring blade and connected to the drive motor installed on the top of the main frame. The stirring mechanism can break the solidified layer of sludge, making it easier for the dredging pump to absorb sediment.

[0009] As a further solution of the utility model, the isolation net is a cylindrical structure made of alloy material, which covers the adapter column inside and is threadedly fixed to the bottom of the main frame by a threaded bolt. It can protect the mixing blades from direct impact of large debris, reduce the wear of the mixing blades, and extend their service life.

[0010] As a further solution of the utility model, the feeding mechanism includes a silt extraction pump body, a thread and a filter cover. Two groups of silt extraction pump bodies are fixed on both sides of the adapter column, and a thread is fixed at the bottom position of the silt extraction pump body, so that the filter cover is threadedly connected to the silt extraction pump body and can be easily replaced, thereby reducing the use cost of the device.

[0011] As a further solution of the utility model, the filter cover is a cylindrical structure with evenly distributed grooves on the sides and the bottom, and a threaded groove matching the thread is provided on the inner side of the top of the filter cover, which can prevent larger impurities and mud blocks from entering the silt extraction pump, reduce the risk of pump blockage, and improve the reliability and stability of the equipment.

[0012] As a further solution of the present invention, the diameter of the isolation net is larger than the length of the farthest distance between the adapter column and the sludge extraction pump body, and the cross-section of the isolation net is a cross-shaped structure, which prevents hard objects such as stones from entering the mixing mechanism, reduces the risk of equipment damage and failure, and reduces maintenance costs.

[0013] As a further solution of the utility model, the discharge port is connected with the pipelines of the two groups of silt extraction pump bodies 71 inside the main frame, and the discharge port has an anti-slip design so that the hose will not fall off due to the impact of silt during operation.

[0014] In summary, the utility model includes at least one of the following beneficial technical effects:

[0015] First, the utility model records a sludge removal device for river crab breeding ponds, which records that a stirring mechanism is designed on the device, which can break the solidified layer of sludge and make it easier for the dredging pump to absorb sediments. This can speed up the dredging process, improve overall work efficiency, make the removal process more gentle, reduce damage to the bottom ecosystem of the pond, maintain the self-purification and balance ability of the bottom sludge, and restore the balance of the bottom sludge biological system. Different pond bottom materials (such as loess, clay or fine sand) may require different flushing pressures to remove compacted sediments. The stirring mechanism can help adjust the dredging device to adapt to different soil qualities and consistencies.

[0016] Second, the utility model records a sludge removal device for river crab breeding ponds, which records that an isolation net is arranged on the outside of the stirring blade. During the dredging process, the isolation net can protect the stirring blade from direct impact of large debris, reduce the wear of the stirring blade, extend its service life, and prevent hard objects such as stones from entering the stirring mechanism, thereby reducing the risk of equipment damage and failure and reducing maintenance costs.

[0017] Third, the utility model records a sludge removal device for river crab breeding ponds, which records that a filter cover is arranged at the inlet of the silt extraction pump body. The filter cover can prevent larger impurities and mud blocks from entering the silt extraction pump, reduce the risk of pump clogging, and improve the reliability and stability of the equipment. By filtering out hard substances that may damage the internal mechanical parts of the silt extraction pump, such as stones and broken glass, the service life of the silt extraction pump is extended. When silting, the filter cover can ensure that only mud that meets the requirements is sucked in, which can operate continuously and improve silt removal efficiency. The filter cover is threadedly connected to the silt extraction pump body and can be easily replaced, thereby reducing the use cost of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the overall structure of a sludge removal device for river crab breeding ponds according to the utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of a sludge removal device for river crab breeding ponds according to the utility model;

[0021] Figure 3 This is a schematic diagram of the discharge port and stirring mechanism structure of the main frame of a sludge removal device for river crab breeding ponds according to the utility model;

[0022] Figure 4 This is a schematic diagram of the structure decomposition of the stirring mechanism of a mud removal device for river crab breeding ponds according to the utility model;

[0023] Figure 5 The utility model is a schematic diagram of the structural decomposition of the feeding mechanism of a sludge removing device for river crab breeding ponds.

[0024] Figure numerals: 1. main frame; 2. supporting legs; 3. handle; 4. driving motor; 5. stirring mechanism; 51. adapter column; 52. stirring blade; 53. isolation net; 6. discharge port; 7. feeding mechanism; 71. sludge extraction pump body; 72. thread; 73. filter cover. DETAILED DESCRIPTION

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5A sludge removal device for a river crab breeding pond comprises: support legs 2 fixed on both sides of the bottom of a main frame 1, a handle 3 fixed on the side of the main frame 1 for convenient movement of the device, a feeding mechanism 7 for sucking filtered sludge installed at the bottom of the main frame 1, a stirring mechanism 5 for stirring the sludge evenly to avoid blockage installed at the bottom of the main frame 1, a driving motor 4 for controlling the stirring mechanism 5 installed at the center of the top of the main frame 1, and a discharge port 6 for discharging the sludge is provided at the rear of the main frame 1.

[0026] Preferably, two sets of handles 3 are fixed on the left and right sides of the main frame 1. When the device needs to be moved, the handles 3 on both sides of the main frame 1 can be held to lift the device for movement. The stirring mechanism 5 includes an adapter column 51, stirring blades 52 and an isolation net 53. One end of the adapter column 51 is fixed to the bottom of the main frame 1, and the other side is rotatably connected with the stirring blades 52, and is connected to the drive motor 4 installed on the top of the main frame 1. The connection between the drive motor 4 and the adapter column 51 is the existing technology. By starting the drive motor, the stirring blades 52 at the bottom of the adapter column 51 are driven to rotate to stir the sludge, which can break the solidified layer of the sludge and make it easier for the dredging pump to absorb sediment. This can speed up the dredging process and improve the overall work efficiency.

[0027] Preferably, the isolation net 53 is a cylindrical structure made of alloy material, covering the adapter column 51 inside, and threadedly fixed to the bottom of the main frame 1 by threaded bolts. The diameter of the isolation net 53 is larger than the length of the farthest distance between the adapter column 51 and the sludge extraction pump body 71, and the cross-section of the isolation net 53 is a cross-shaped structure. The isolation net 53 covers the outside of the adapter column 51 and the stirring blade 52, and is fixed at the four corners by threaded bolts. The isolation net 53 can protect the stirring blade from direct impact of large debris, reduce the wear of the stirring blade, extend its service life, and prevent hard objects such as stones from entering the stirring mechanism, reduce the risk of equipment damage and failure, and reduce maintenance costs.

[0028] Preferably, the feeding mechanism 7 includes a silt extraction pump body 71, a thread 72 and a filter cover 73. Two groups of silt extraction pump bodies 71 are fixed on both sides of the adapter column 51, and a thread 72 is fixed at the bottom position of the silt extraction pump body 71. The filter cover 73 is a cylindrical structure, and evenly distributed grooves are opened on the side and bottom, and a thread groove matching the thread 72 is opened on the inner position of the top of the filter cover 73. The filter cover 73 is threadedly connected to the silt extraction pump body 71 through the thread 72. When working, the silt extraction pump body 71 extracts nearby silt, and the filter cover 73 can filter the silt that is about to enter the silt extraction pump body 71, which can prevent larger impurities and mud blocks from entering the silt extraction pump, reduce the risk of pump clogging, and improve the reliability and stability of the equipment.

[0029] Preferably, the discharge port 6 is connected to the pipes of the two groups of silt extraction pump bodies 71 inside the main frame 1, and the outlet of the discharge port has an anti-slip design. Before the silt extraction pump body 71 starts working, one end of the hose for transmitting sludge can be put on the pipe of the discharge port 6, and the hose can be tightened with wire or rope. Since the outermost side of the discharge port 6 is thicker, the hose will not fall off due to the impact of silt during operation.

[0030] The working principle of the sludge removal device for river crab breeding pond provided by the utility model is as follows:

[0031] Check whether the dredging device is intact, confirm that all parts are ready and in good working condition, perform necessary maintenance and inspection on the equipment according to the operating manual, such as lubrication, tightening loose screws, etc., clean the area around the device, and ensure that there are no obstacles that affect the movement and operation of the equipment.

[0032] Cover the isolation net 53 on the outside of the adapter column 51 and the stirring blade 52, and fix them at the four corners with threaded bolts, and thread the filter cover 73 onto the thread 72 at the bottom of the sludge extraction pump body 71, confirm that the stirring mechanism and the feeding mechanism 7 are correctly installed and firmly fixed, check whether the power cord and the control panel are intact, and ensure that there is no risk of leakage or short circuit, check whether the stirring mechanism 5, the feeding mechanism 7, etc. can operate freely and are not stuck by debris, and confirm that all operators have understood the equipment operation process and safety precautions.

[0033] Place the device at the bottom of the pond in the area where silt needs to be desilted, ensure that the stirring blades 52 have enough space to rotate and will not be stuck by obstacles at the bottom, and before the silt pump body 71 starts working, one end of the silt transmission hose can be put on the pipe of the discharge port 6, and the hose can be tied tightly with wire or rope and the other end of the hose can be placed in a suitable position.

[0034] Gradually start the stirring mechanism 5 and the feeding mechanism 7, gradually increase the rotation speed of the stirring mechanism 7 until it reaches the normal working speed, and adjust it to an appropriate working speed so that it begins to break and mix the sludge. At the same time, start the feeding mechanism 7 to absorb the sediment loosened by stirring, observe the effect of stirring and silt extraction, adjust the depth or speed of the equipment when necessary, pay attention to whether the equipment is operating normally, whether there are abnormal sounds or vibrations, and move the device to different dredging areas as needed, maintain continuous monitoring, ensure that dredging is carried out evenly, and adjust the depth and pressure of the stirring mechanism 5 and the feeding mechanism 7 in time according to the actual dredging situation, observe whether there are large impurities blocking the filter cover 73, and clean it in time to prevent equipment damage.

[0035] After dredging is completed, turn off the stirring mechanism 5 and the feeding mechanism 7, lift the device out of the water, disconnect the power supply, clean the stirring mechanism 5 and the feeding mechanism 7, remove the adhering mud and impurities, check whether there are any worn or damaged parts of the equipment, and perform necessary repairs and maintenance to ensure that the equipment is in the best working condition.

[0036] Although the embodiments of the present invention have been shown and described, it is understandable to those skilled in the art that various changes, modifications, substitutions and variations or direct or indirect applications may be made to these embodiments without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, which are equally included in the scope of patent protection of the present invention.

Claims

1. A device for removing mud from a river crab breeding pond, comprising: The supporting legs (2) are fixed on both sides of the bottom of the main frame (1), characterized in that: a handle (3) is fixed on the side of the main frame (1) for facilitating the operation of one end of the device; a feeding mechanism (7) for sucking in filtered sludge is installed at the bottom of the main frame (1); a stirring mechanism (5) for stirring the sludge evenly to avoid blockage is installed at the bottom of the main frame (1); a driving motor (4) for controlling the stirring mechanism (5) is installed at the center of the top of the main frame (1); the stirring mechanism (5) includes a transfer column (51), a stirring blade (52) and an isolation net (53); one end of the transfer column (51) is fixed to the bottom of the main frame (1), and the other side is rotatably connected to the stirring blade (52) and is connected to the driving motor (4) installed at the top of the main frame (1); a discharge port (6) for discharging sludge is arranged at the rear of the main frame (1); The stirring mechanism (5) comprises a transfer column (51), wherein the transfer column (51) is fixed at the center position of the bottom of the main frame (1); The feeding mechanism (7) comprises a silt extraction pump body (71), a thread (72) and a filter cover (73), wherein two groups of silt extraction pump bodies (71) are fixed on both sides of an adapter column (51), and a thread (72) is fixed at the bottom of the silt extraction pump body (71), wherein the silt extraction pump body (71) is fixed on both sides of the adapter column (51) at the bottom of the main frame (1).

2. A crab breeding pond sludge removal device according to claim 1, characterized in that: The two groups of handles (3) are fixed oppositely on the left and right sides of the main frame (1).

3. A crab breeding pond sludge removal device according to claim 1, characterized in that: The isolation net (53) is a cylindrical structure made of alloy material, covers the adapter column (51) inside, and is threadedly fixed to the bottom of the main frame (1) by a threaded bolt.

4. A crab breeding pond sludge removal device according to claim 1, characterized in that: The filter cover (73) is a cylindrical structure, and is provided with evenly distributed grooves on the side and bottom, and a thread groove matching the thread (72) is provided on the inner side of the top of the filter cover (73).

5. The device for removing mud from a river crab breeding pond according to claim 1, characterized in that: The discharge port (6) is connected to the pipelines of the two groups of silt extraction pump bodies (71) inside the main frame (1), and the outlet of the discharge port has an anti-slip design.

6. A crab breeding pond sludge removal device according to claim 1, characterized in that: The diameter of the isolation net (53) is greater than the length of the farthest distance between the adapter column (51) and the silt extraction pump body (71), and the cross section of the isolation net (53) is a cross-shaped structure.

Images