Water pollution sludge dewatering device for water conservancy river regulation and use method thereof

Abstract

The application discloses a water pollution sludge dewatering device for water conservancy river regulation and a use method thereof, relates to the technical field of sewage treatment, and the water pollution sludge dewatering device for water conservancy river regulation comprises a main body, a fixed box is fixedly installed on the surface of the main body, an adjusting box penetrates through the surface of the fixed box in a rotating mode, a separation cylinder is fixedly installed on the surface of the main body, a feeding port penetrates through the top of the adjusting box in a fixed mode, and a water outlet penetrates through the surface of the separation cylinder in a fixed mode. The water pollution sludge dewatering device for water conservancy river regulation conveys the equipment through the feeding port, starts the crushing mechanism, and the output end of the crushing mechanism is rotated to crush large-particle impurities in the sewage, so that the primary treatment crushing of the sewage is realized, the large-particle impurities are prevented from blocking the equipment, the continuous and stable operation of the equipment is ensured, the uniformity of the sludge is improved, subsequent dewatering treatment is facilitated, the frequency of manual cleaning is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to a device for dewatering sludge polluted by water in water conservancy and river channel treatment and a method for using the device. Background Art

[0002] A water contaminated sludge dewatering device used in water conservancy and river management is mainly used to treat sludge in water bodies such as rivers and lakes. It separates water from the sludge by mechanical means to reduce the volume of the sludge and facilitate subsequent transportation, disposal or resource utilization.

[0003] The patent with patent announcement number CN116813174B relates to a water contaminated sludge dewatering device for water conservancy and river channel management and its use method, including a stirring group and a dewatering group, the stirring group is arranged above the dewatering group, the stirring group is provided with a stirring device capable of mixing lime and sludge, and the dewatering group is provided with a sludge dewatering device; the sludge dewatering device is provided with an outer shell, and a support frame is provided at the bottom of the outer shell, and the support frame is composed of multiple groups of vertical legs provided at the bottom edge of the outer shell; a stirring device is provided above the outer shell, and the stirring device can stir the lime and sludge evenly and then pass the stirred disinfected sludge into the outer shell, and dewater it through the cylindrical shell provided inside the outer shell; this patent sets the stirring group and the dewatering group so that the device can mix the sludge and lime well, and efficiently disinfect the sludge through sufficient mixing of lime.

[0004] In the above patent, by setting up a stirring group and a dewatering group, the sludge and lime can be well mixed, and the sludge can be efficiently disinfected by fully mixing with the lime. However, during the initial treatment of the water sludge, large particles of impurities may be mixed with it, thereby affecting the effect and efficiency of sludge dewatering. For this reason, a water contaminated sludge dewatering device for water conservancy and river management with a screening and regulation function is designed. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device for dewatering water-contaminated sludge used in water conservancy and river management and a method for using the same, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a water contaminated sludge dewatering device for water conservancy and river channel management and a method of using the same, comprising a main body, a fixed box fixedly mounted on the surface of the main body, an adjusting box rotatably penetrated on the surface of the fixed box, a separation cylinder fixedly mounted on the surface of the main body, a feed port fixedly penetrated on the top of the adjusting box, a water outlet fixedly penetrated on the surface of the separation cylinder, a crushing device for crushing large particles of impurities inside the sewage, the crushing device comprising a crushing mechanism, a crushing mechanism provided on the inner wall of the adjusting box, a fixed plate fixedly mounted on the surface of the adjusting box, a spiral rod rotatably penetrated on the inner wall of the adjusting box, a motor fixedly mounted on the surface of the separation cylinder, a centrifugal cylinder rotatably penetrated on the surface of the separation cylinder, a fixed frame fixedly mounted on the circumferential surface of the centrifugal cylinder, and a mud cake frame fixedly mounted on the surface of the main body, thereby realizing the initial treatment and crushing of the sewage, preventing large particles of impurities from clogging the equipment, ensuring continuous and stable operation of the equipment, improving the uniformity of the sludge, facilitating subsequent dewatering treatment, reducing the frequency of manual cleaning, and reducing maintenance costs.

[0007] According to the above technical solution, the spiral rod rotates and penetrates the surface of the fixed plate, filter holes begin to appear on the surface of the centrifugal cylinder, the separation cylinder is fixed and penetrates the surface of the fixed box, and a mud outlet is opened at the bottom of the main body to realize the screening of large particles of impurities, sludge and water, thereby improving the purity of the sludge, facilitating subsequent resource utilization, reducing the wear of impurities on the dehydration equipment, extending the service life of the equipment, thereby reducing the impact of impurities on the dehydration effect and improving the dehydration efficiency.

[0008] According to the above technical solution, a transmission belt is connected between the crushing mechanism and the screw rod, a discharge port is opened on the surface of the regulating box, the centrifugal cylinder rotates through the surface of the main body, and the output end of the motor contacts the surface of the fixed frame to realize the drying and dehydration of the sludge, quickly separate the water in the sludge, significantly reduce the water content of the sludge, reduce the load of the subsequent filtration stage, improve the overall processing efficiency, and facilitate the adaptability of the water chestnut cake equipment in the subsequent filtration process.

[0009] According to the above technical solution, the surface of the separation cylinder is provided with a stirring device for stirring the sludge, and the stirring device includes a rotating shaft, which rotates through the surface of the separation cylinder, and the circumferential surface of the rotating shaft is fixedly installed with a fixed disk, and the circumferential surface of the rotating shaft is slidably installed with a rotating ring, and the circumferential surface of the rotating ring is fixedly installed with a stirring plate, and the surface of the stirring plate is rotatably installed with a rotating rod, and the inner wall of the centrifugal cylinder is slidably installed with a sliding ring, and the surface of the rotating ring is fixedly installed with a knocking rod, which is used to stir and break up the sludge, thereby improving the uniformity of the sludge. Stirring makes the sludge more evenly distributed, avoids local accumulation, and improves the effect of centrifugal dehydration. Stirring prevents the sludge from compacting during the centrifugal process, ensures the fluidity of the sludge, and facilitates subsequent treatment. At the same time, stirring helps to treat high-viscosity sludge and expands the scope of application of the equipment.

[0010] According to the above technical solution, the rotating ring is connected to the rotating shaft by a threaded connection, the sliding ring is in contact with the rotating rod, and the rotating shaft and the motor are connected by a transmission belt 2 for scraping, thereby preventing the centrifugal cylinder from being blocked by sludge and affecting the screening effect and working efficiency of the centrifugal cylinder, reducing the corrosion and wear of the inner wall by sludge, and extending the service life of the centrifugal cylinder, thereby ensuring uniform distribution of centrifugal force and maintaining efficient operation of the equipment.

[0011] According to the above technical solution, the inclination angle of the stirring plate is set to an inclination angle, and the circumferential surface of the rotating shaft is provided with a reciprocating thread groove to realize self-cleaning of the parts inside the centrifuge cylinder, thereby avoiding sludge adhering or sticking to the surface of the parts during long-term use and thus affecting their working efficiency, reducing the frequency of manual cleaning, reducing maintenance costs, ensuring continuous operation of the equipment, and avoiding shutdowns due to blockages.

[0012] According to the above technical solution, the circumferential surface of the sliding ring is provided with a compacting device for further compacting the dehydrated sludge, and the compacting device includes an L-shaped plate, which is fixedly mounted on the circumferential surface of the sliding ring, and a closing plate is fixedly mounted on the surface of the L-shaped plate, and a pressure plate is fixedly mounted on the end of the L-shaped plate away from the sliding ring, and an inclined plate is fixedly mounted on the surface of the L-shaped plate, and an arc plate is slidably mounted on the surface of the main body, and an inclined block is fixedly mounted on the surface of the arc plate, and a telescopic elastic rod 1 is fixedly mounted on the surface of the mud cake frame, and a chassis is slidably mounted on the bottom of the main body, and a telescopic elastic rod 2 is fixedly mounted on the bottom of the main body for compaction, thereby reducing the volume and water content of the sludge, improving the stacking efficiency of the sludge, further reducing the water content of the sludge, forming a dry and hard mud cake, which is convenient for transportation and disposal, and at the same time improving the stability of the sludge, reducing the risk of secondary pollution, and the density of the compacted sludge is higher, which is convenient for transportation and subsequent treatment.

[0013] According to the above technical solution, the closing plate is slidably connected to the circumferential surface of the separation cylinder, the closing plate is slidably connected to the circumferential surface of the centrifugal cylinder, the surface of the pressure plate is provided with filter holes, the surface of the inclined plate close to the inclined block is set as inclined surface one, the surface of the inclined block close to the inclined plate is set as inclined surface two, the free end of the telescopic elastic rod one is fixedly connected to the arc plate, the free end of the telescopic elastic rod two is fixedly connected to the chassis, the L-shaped plate slides through the surface of the main body, the surface of the chassis is provided with traction holes, which push the sludge on the edge to the middle, ensuring uniform pressure distribution during the filtration process, avoiding incomplete dehydration caused by insufficient local pressure, making full use of the filtration area, and improving the overall dehydration efficiency.

[0014] A device for dewatering sludge contaminated by water used in water conservancy and river channel management, comprising:

[0015] Step 1: The sewage is transported into the equipment through the feed port, and the crushing mechanism is started. The output end of the crushing mechanism rotates to crush the large particles of impurities in the sewage, thus achieving the initial treatment and crushing of the sewage. The staff adjusts the discharge rate of the water sludge impurities by rotating the regulating box;

[0016] Step 2: The crushing mechanism rotates to drive the transmission belt to rotate, and at the same time, the transmission belt rotates to drive the screw rod to rotate. The rotation of the screw rod drives the large particles of impurities accumulated inside the regulating box to be transported to the discharge port;

[0017] Step 3: The sludge and water flow into the water inlet of the separation cylinder through the fixed box. At this time, the motor is started. Since the output end of the motor is in contact with the fixed frame, the output end of the motor rotates to drive the fixed frame to rotate. The rotation of the fixed frame drives the centrifugal cylinder to rotate. At the same time, the sludge and water pass through the separation cylinder and enter the interior of the centrifugal cylinder. The rotation of the centrifugal cylinder throws out the sludge and water accumulated inside through centrifugal force.

[0018] Step 4: The water is thrown out through the filter holes opened on the circumferential surface of the centrifugal cylinder, and the sludge continues to accumulate inside the centrifugal cylinder. The water flows out through the outlet, and then the dehydrated sludge falls through the centrifugal cylinder. The dry sludge accumulated inside the mud cake frame is then filtered by the filter press.

[0019] The present invention provides a device for dewatering water-contaminated sludge used in water conservancy and river management, and a method for using the device. It has the following beneficial effects:

[0020] (1) The water contaminated sludge dewatering device for water conservancy and river channel treatment is fed into the equipment through the feed port, and the crushing mechanism is started. The output end of the crushing mechanism rotates to crush the large particles of impurities in the sewage, thereby realizing the initial treatment and crushing of the sewage, preventing large particles of impurities from clogging the equipment, ensuring the continuous and stable operation of the equipment, improving the uniformity of the sludge, facilitating subsequent dewatering treatment, reducing the frequency of manual cleaning, and reducing maintenance costs. The staff adjusts the discharge rate of water sludge impurities by rotating the regulating box, ensuring that the sludge and impurities are discharged as needed to avoid mixed pollution. The rotation of the screw drives the large particles of impurities accumulated inside the regulating box to be transported to the discharge port, realizing the screening of large particles of impurities, sludge and water, improving the purity of the sludge, facilitating subsequent resource utilization, reducing the wear of impurities on the dewatering equipment, extending the service life of the equipment, thereby reducing the impact of impurities on the dewatering effect and improving the dewatering efficiency.

[0021] (2) The water contaminated sludge dewatering device for water conservancy and river channel treatment is thrown out through the filter holes opened on the circumferential surface of the centrifugal cylinder, and the sludge continues to accumulate inside the centrifugal cylinder, realizing the drying and dehydration of the sludge, quickly separating the water in the sludge, significantly reducing the sludge moisture content, reducing the load of the subsequent filter pressing stage, improving the overall processing efficiency, and facilitating the adaptability of the subsequent filter pressing process. At the same time, water flows out through the water outlet, and then the dehydrated sludge falls through the centrifugal cylinder, and then the dry mud accumulated inside the mud cake frame is filtered by the filter press to achieve the compaction of the sludge, reduce the volume and water content of the sludge, improve the stacking efficiency of the sludge, further reduce the sludge moisture content, form a dry and hard mud cake, which is convenient for transportation and disposal, and at the same time improve the stability of the sludge and reduce the risk of secondary pollution.

[0022] (3) The water contaminated sludge dewatering device for water conservancy and river channel management drives the stirring plate to rotate by rotating the rotating ring. At this time, the stirring plate rotates to stir and break up the sludge inside the centrifugal cylinder, thereby improving the uniformity of the sludge. Stirring makes the sludge more evenly distributed, avoids local accumulation, and improves the effect of centrifugal dewatering. Stirring prevents the sludge from compacting during the centrifugal process, ensures the fluidity of the sludge, and facilitates subsequent treatment. At the same time, stirring helps to treat high-viscosity sludge and expands the scope of application of the equipment.

[0023] (4) The water contaminated sludge dewatering device for water conservancy and river channel management drives the rotating rod to move upward by moving the stirring plate, and the rotating rod moves upward to drive the sliding ring to move. At this time, the sliding ring moves upward to scrape off the sludge attached to or blocked in the filter holes inside the centrifugal cylinder, so as to avoid the sludge blocking the centrifugal cylinder and affecting the screening effect and working efficiency of the centrifugal cylinder, reduce the corrosion and wear of the inner wall by the sludge, and extend the service life of the centrifugal cylinder, thereby ensuring the uniform distribution of centrifugal force and maintaining the efficient operation of the equipment. The knocking rod moves upward until it contacts the surface of the fixed disk to generate vibration. The vibration of the fixed disk transmits the vibration to the rotating shaft, realizing self-cleaning of the parts inside the centrifugal cylinder, avoiding the sludge adhering or sticking to the surface of the parts during long-term use and affecting their working efficiency, reducing the frequency of manual cleaning, reducing maintenance costs, ensuring continuous operation of the equipment, and avoiding shutdown due to blockage.

[0024] (5) The water contaminated sludge dewatering device for water conservancy and river channel management drives the pressure plate to move downward by the movement of the L-shaped plate. The downward movement of the pressure plate compacts the dehydrated sludge, reduces the volume and water content of the sludge, improves the sludge stacking efficiency, further reduces the sludge water content, forms a dry and hard mud cake, which is convenient for transportation and disposal, and improves the stability of the sludge, reduces the risk of secondary pollution, and the compacted sludge has a higher density, which is convenient for transportation and subsequent treatment. The movement of the inclined block drives the movement of the arc plate. Under the action of the inclined block, the arc plate moves to push the sludge on the edge to the middle, ensuring uniform pressure distribution during the filtration process, avoiding incomplete dehydration caused by insufficient local pressure, making full use of the filtration area, and improving the overall dehydration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall internal structure of the present invention;

[0027] Figure 3 This is a schematic diagram of the position structure of the motor and the fixing frame of the present invention;

[0028] Figure 4 This is a schematic diagram of the position structure of the rotating shaft and the rotating ring of the present invention;

[0029] Figure 5 For the present invention Figure 4 A schematic diagram of the enlarged structure of the middle part;

[0030] Figure 6 This is a schematic diagram of the position structure of the sliding ring and the L-shaped plate of the present invention;

[0031] Figure 7 This is a schematic diagram of the position structure of the chassis and the telescopic elastic rod 2 of the present invention.

[0032] In the figure: 1. Main body; 2. Fixed box; 3. Adjustment box; 4. Separation cylinder; 51. Feed inlet; 52. Water outlet; 61. Crushing mechanism; 62. Fixed plate; 63. Screw rod; 64. Motor; 65. Centrifugal cylinder; 66. Fixed frame; 67. Mud cake frame; 71. Rotating shaft; 72. Fixed plate; 73. Rotating ring; 74. Stirring plate; 75. Rotating rod; 76. Sliding ring; 77. Knocking rod; 81. L-shaped plate; 82. Closing plate; 83. Pressing plate; 84. Inclined plate; 85. Arc plate; 86. Inclined block; 87. Telescopic elastic rod 1; 88. Chassis; 89. Telescopic elastic rod 2. DETAILED DESCRIPTION

[0033] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0034] See also Figure 1-Figure 7 One embodiment of the present invention is: a water contaminated sludge dewatering device for water conservancy and river channel management and its use method, comprising a main body 1, a fixed box 2 is fixedly installed on the surface of the main body 1, a regulating box 3 is rotatably penetrated on the surface of the fixed box 2, a separation cylinder 4 is fixedly installed on the surface of the main body 1, a feed inlet 51 is fixedly penetrated on the top of the regulating box 3, a water outlet 52 is fixedly penetrated on the surface of the separation cylinder 4, a crushing device for crushing large particles of impurities in the sewage is provided on the inner wall of the regulating box 3, the crushing device includes a crushing mechanism 61, the regulating box 3 The inner wall of the regulating box 3 is provided with a crushing mechanism 61, a fixed plate 62 is fixedly installed on the surface of the regulating box 3, a screw rod 63 is rotatably penetrated through the inner wall of the regulating box 3, a motor 64 is fixedly installed on the surface of the separation cylinder 4, a centrifugal cylinder 65 is rotatably penetrated through the surface of the separation cylinder 4, a fixed frame 66 is fixedly installed on the circumferential surface of the centrifugal cylinder 65, and a mud cake frame 67 is fixedly installed on the surface of the main body 1. Water flows out through the water outlet 52, and then the dehydrated sludge falls through the centrifugal cylinder 65, and then the dry mud accumulated inside the mud cake frame 67 is filtered by the filter press.

[0035] The screw rod 63 rotates and penetrates the surface of the fixed plate 62, and filter holes begin to appear on the surface of the centrifugal cylinder 65. The output end of the motor 64 rotates to drive the fixed frame 66 to rotate, and the fixed frame 66 rotates to drive the centrifugal cylinder 65 to rotate. The separation cylinder 4 is fixed and penetrates the surface of the fixed box 2. A mud outlet is opened at the bottom of the main body 1.

[0036] A transmission belt is connected between the crushing mechanism 61 and the screw rod 63. A discharge port is provided on the surface of the regulating box 3. The centrifugal cylinder 65 rotates through the surface of the main body 1. The output end of the motor 64 contacts the surface of the fixed frame 66. The sludge and water enter the interior of the centrifugal cylinder 65 through the separation cylinder 4. The centrifugal cylinder 65 rotates to throw out the sludge and water accumulated inside through centrifugal force.

[0037] A device for dewatering sludge contaminated by water used in water conservancy and river channel management, comprising:

[0038] Step 1: The sewage is delivered into the equipment through the feed port 51, and the crushing mechanism 61 is started. The output end of the crushing mechanism 61 rotates to crush the large particles of impurities in the sewage, thus achieving the initial treatment and crushing of the sewage. The staff adjusts the discharge rate of the water sludge impurities by rotating the regulating box 3;

[0039] Step 2: The crushing mechanism 61 rotates to drive the transmission belt 1 to rotate, and the transmission belt 1 rotates to drive the screw rod 63 to rotate. The rotation of the screw rod 63 drives the large particles of impurities accumulated inside the regulating box 3 to be transported to the discharge port;

[0040] Step 3: The sludge and water flow into the water inlet of the separation cylinder 4 through the fixed box 2. At this time, the motor 64 is started. Since the output end of the motor 64 is in contact with the fixed frame 66, the output end of the motor 64 rotates to drive the fixed frame 66 to rotate. The rotation of the fixed frame 66 drives the centrifugal cylinder 65 to rotate. At the same time, the sludge and water pass through the separation cylinder 4 and enter the interior of the centrifugal cylinder 65. The rotation of the centrifugal cylinder 65 throws out the sludge and water accumulated inside through centrifugal force.

[0041] Step 4: The water is thrown out through the filter holes opened on the circumferential surface of the centrifugal cylinder 65, and the sludge continues to accumulate inside the centrifugal cylinder 65. The water flows out through the water outlet 52, and then the dehydrated sludge falls through the centrifugal cylinder 65. The dry mud accumulated inside the mud cake frame 67 is then filtered by a filter press.

[0042] When this embodiment is working: sewage is transported into the equipment through the feed port 51, the crushing mechanism 61 is started, and the output end of the crushing mechanism 61 rotates to crush the large particles of impurities in the sewage, thereby achieving the initial treatment and crushing of the sewage, preventing large particles of impurities from clogging the equipment, ensuring continuous and stable operation of the equipment, improving the uniformity of the sludge, facilitating subsequent dewatering treatment, reducing the frequency of manual cleaning, and reducing maintenance costs. The staff adjusts the discharge rate of water sludge impurities by rotating the regulating box 3, ensuring that the sludge and impurities are discharged as needed to avoid mixed pollution. Then the crushing mechanism 61 rotates to drive the transmission belt to rotate, and at the same time, the transmission belt rotates to drive the screw rod 63 to rotate. The rotation of the screw rod 63 drives the large particles of impurities accumulated in the regulating box 3 to be transported to the discharge port, thereby achieving screening of large particles of impurities, sludge and water, improving the purity of the sludge, facilitating subsequent resource utilization, reducing the wear of impurities on the dewatering equipment, extending the service life of the equipment, thereby reducing the influence of impurities on the dewatering effect, and improving the dewatering efficiency. Then the sludge and water flow into the water inlet of the separation cylinder 4 through the fixed box 2, and then the crushing mechanism 61 is started. The motor 64 is driven. Since the output end of the motor 64 is in contact with the fixed frame 66, the output end of the motor 64 rotates to drive the fixed frame 66 to rotate. The fixed frame 66 rotates to drive the centrifugal cylinder 65 to rotate. At the same time, the sludge and water enter the interior of the centrifugal cylinder 65 through the separation cylinder 4. The centrifugal cylinder 65 rotates to throw out the sludge and water accumulated inside through centrifugal force. At this time, the water is thrown out through the filter holes opened on the circumferential surface of the centrifugal cylinder 65, and the sludge continues to accumulate inside the centrifugal cylinder 65, thereby achieving the drying and dehydration of the sludge, quickly separating the water in the sludge, and significantly reducing the sludge. Moisture content, reducing the load of the subsequent filter pressing stage, improving the overall processing efficiency, facilitating the adaptability of the water chestnut cake equipment in the subsequent filter pressing process, and at the same time, water flows out through the water outlet 52, and then the dehydrated sludge falls through the centrifugal cylinder 65, and then the dry mud accumulated in the mud cake frame 67 is filtered by the filter press to achieve compaction of the sludge, reduce the volume and water content of the sludge, improve the stacking efficiency of the sludge, further reduce the water content of the sludge, form a dry hard mud cake, which is convenient for transportation and disposal, while improving the stability of the sludge and reducing the risk of secondary pollution.

[0043] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a stirring device for stirring the sludge is provided on the surface of the separation cylinder 4, and the stirring device includes a rotating shaft 71. The rotating shaft 71 rotates and penetrates the surface of the separation cylinder 4. A fixed disk 72 is fixedly installed on the circumferential surface of the rotating shaft 71, and a rotating ring 73 is slidably installed on the circumferential surface of the rotating shaft 71. A stirring plate 74 is fixedly installed on the circumferential surface of the rotating ring 73. A rotating rod 75 is rotatably installed on the surface of the stirring plate 74. A sliding ring 76 is slidably installed on the inner wall of the centrifugal cylinder 65. A knocking rod 77 is fixedly installed on the surface of the rotating ring 73. The rotating ring 73 moves upward to drive the knocking rod 77 to move. At this time, the knocking rod 77 moves upward until it contacts the surface of the fixed disk 72 to generate vibration.

[0044] The rotating ring 73 is connected to the rotating shaft 71 by a threaded connection, the sliding ring 76 is in contact with the rotating rod 75, the rotating shaft 71 and the motor 64 are connected by a transmission belt 2, and the rotating shaft 71 and the rotating ring 73 are connected by a threaded connection. The rotation of the rotating shaft 71 drives the rotating ring 73 to move upward.

[0045] The inclination angle of the stirring plate 74 is set to an inclination angle, and a reciprocating thread groove is opened on the circumferential surface of the rotating shaft 71. The rotation of the rotating shaft 71 drives the rotating ring 73 to rotate, and the rotation of the rotating ring 73 drives the stirring plate 74 to rotate.

[0046] The circumferential surface of the sliding ring 76 is provided with a compacting device for further compacting the dehydrated sludge, and the compacting device includes an L-shaped plate 81, which is fixedly mounted on the circumferential surface of the sliding ring 76, and a closing plate 82 is fixedly mounted on the surface of the L-shaped plate 81, and a pressure plate 83 is fixedly mounted on the end of the L-shaped plate 81 away from the sliding ring 76, and an inclined plate 84 is fixedly mounted on the surface of the L-shaped plate 81. An arc plate 85 is slidably mounted on the surface of the main body 1, and an inclined block 86 is fixedly mounted on the surface of the arc plate 85. A telescopic elastic rod 87 is fixedly mounted on the surface of the mud cake frame 67, and a chassis 88 is slidably mounted on the bottom of the main body 1. After the sludge is filtered, the chassis 88 is pulled away from the discharge port by external force until the limit on the mud cake frame 67 is released. At this time, the processed sludge cake falls through the mud outlet, and a telescopic elastic rod 89 is fixedly mounted on the bottom of the main body 1.

[0047] The closing plate 82 is slidably connected to the circumferential surface of the separation cylinder 4, the closing plate 82 is slidably connected to the circumferential surface of the centrifugal cylinder 65, the surface of the pressure plate 83 is provided with filter holes, the surface of the inclined plate 84 close to the inclined block 86 is set as inclined surface one, and the surface of the inclined block 86 close to the inclined plate 84 is set as inclined surface two, the free end of the telescopic elastic rod 1 87 is fixedly connected to the arc plate 85, the movement of the inclined block 86 drives the arc plate 85 to move, and the arc plate 85 moves under the action of the inclined block 86 to push the sludge on the edge to the middle, the free end of the telescopic elastic rod 2 89 is fixedly connected to the chassis 88, the L-shaped plate 81 slides through the surface of the main body 1, and the surface of the chassis 88 is provided with a traction hole.

[0048] When this embodiment is working: when the transmission belt 2 rotates under the action of the output end of the motor 64, it drives the rotating shaft 71 to rotate, and the rotating shaft 71 drives the rotating ring 73 to rotate. At the same time, the rotating ring 73 rotates to drive the stirring plate 74 to rotate. At this time, the stirring plate 74 rotates to stir and break up the sludge inside the centrifugal drum 65, thereby improving the uniformity of the sludge. The stirring makes the sludge more evenly distributed, avoids local accumulation, and improves the effect of centrifugal dehydration. The stirring prevents the sludge from hardening during the centrifugal process, ensures the fluidity of the sludge, and facilitates subsequent treatment. At the same time, the stirring helps to treat high-viscosity sludge and expands the scope of application of the equipment. Because the rotating shaft 71 and the rotating ring 73 are connected by a thread, the rotation of the rotating shaft 71 drives the rotating ring 73 to move upward. At this time, the movement of the rotating ring 73 drives the stirring plate 74 to move upward. At the same time, the movement of the stirring plate 74 drives the rotating rod 75 upward. The rotating rod 75 moves upward The movement drives the sliding ring 76 to move. At this time, the sliding ring 76 moves upward to scrape off the sludge attached to or blocking the filter holes inside the centrifugal cylinder 65, so as to avoid the sludge blocking the centrifugal cylinder 65 and affecting the screening effect and working efficiency of the centrifugal cylinder 65, reduce the corrosion and wear of the inner wall by the sludge, and extend the service life of the centrifugal cylinder 65, thereby ensuring that the centrifugal force is evenly distributed and maintaining the efficient operation of the equipment. At the same time, the rotating ring 73 moves upward to drive the knocking rod 77 to move. At this time, the knocking rod 77 moves upward until it contacts the surface of the fixed disk 72 to generate vibration. The vibration of the fixed disk 72 transmits the vibration to the rotating shaft 71, thereby realizing self-cleaning of the parts inside the centrifugal cylinder 65, avoiding the sludge from adhering or sticking to the surface of the parts during long-term use and affecting their working efficiency, reducing the frequency of manual cleaning, reducing maintenance costs, ensuring continuous operation of the equipment, and avoiding shutdowns caused by blockages.

[0049] When the sliding ring 76 moves under the action of the rotating shaft 71, it drives the L-shaped plate 81 to move, and at the same time, the L-shaped plate 81 moves and drives the pressing plate 83 to move downward. The pressing plate 83 moves downward to compact the dehydrated sludge, reducing the volume and water content of the sludge, improving the stacking efficiency of the sludge, further reducing the water content of the sludge, forming a dry hard mud cake, which is convenient for transportation and disposal, and at the same time improving the stability of the sludge, reducing the risk of secondary pollution, and the compacted sludge has a higher density, which is convenient for transportation and subsequent treatment. At the same time, the L-shaped plate 81 moves downward and drives the inclined plate 84 to move downward. The plate 84 moves downward to contact and squeeze the inclined block 86 to move towards the centrifugal cylinder 65. At the same time, the movement of the inclined block 86 drives the arc plate 85 to move. Under the action of the inclined block 86, the arc plate 85 moves to push the sludge on the edge to the middle, ensuring uniform pressure distribution during the filtration process, avoiding incomplete dehydration caused by insufficient local pressure, making full use of the filtration area, and improving the overall dehydration efficiency. After the sludge is filtered, the chassis 88 is pulled away from the discharge port by external force until the limit on the mud cake frame 67 is released. At this time, the processed sludge cake falls through the mud outlet.

[0050] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A device for dewatering water-contaminated sludge used in water conservancy and river management, comprising a main body (1), characterized in that: A fixed box (2) is fixedly mounted on the surface of the main body (1), an adjusting box (3) is rotatably penetrated on the surface of the fixed box (2), a separation cylinder (4) is fixedly mounted on the surface of the main body (1), a feed port (51) is fixedly penetrated on the top of the adjusting box (3), a water outlet (52) is fixedly penetrated on the surface of the separation cylinder (4), a crushing device for crushing large particles of impurities in the sewage is provided on the inner wall of the adjusting box (3), the crushing device comprises a crushing mechanism (61), a crushing mechanism (61) is provided on the inner wall of the adjusting box (3), a fixed plate (62) is fixedly mounted on the surface of the adjusting box (3), a spiral rod (63) is rotatably penetrated on the inner wall of the adjusting box (3), a motor (64) is fixedly mounted on the surface of the separation cylinder (4), a centrifugal cylinder (65) is rotatably penetrated on the surface of the separation cylinder (4), a fixed frame (66) is fixedly mounted on the circumferential surface of the centrifugal cylinder (65), and a mud cake frame (67) is fixedly mounted on the surface of the main body (1); The spiral rod (63) rotates and penetrates the surface of the fixed plate (62), and filter holes begin to appear on the surface of the centrifugal cylinder (65). The separation cylinder (4) is fixed and penetrates the surface of the fixed box (2), and a mud outlet is opened at the bottom of the main body (1); A transmission belt is connected between the pulverizing mechanism (61) and the screw rod (63); a discharge port is provided on the surface of the regulating box (3); the centrifugal cylinder (65) rotates through the surface of the main body (1); and the output end of the motor (64) contacts the surface of the fixed frame (66); The surface of the separation cylinder (4) is provided with a stirring device for stirring the sludge, the stirring device comprising a rotating shaft (71), the rotating shaft (71) rotatingly penetrating the surface of the separation cylinder (4), a fixed disk (72) fixedly mounted on the circumferential surface of the rotating shaft (71), a rotating ring (73) slidably mounted on the circumferential surface of the rotating shaft (71), a stirring plate (74) fixedly mounted on the circumferential surface of the rotating ring (73), a rotating rod (75) rotatably mounted on the surface of the stirring plate (74), a sliding ring (76) slidably mounted on the inner wall of the centrifugal cylinder (65), and a knocking rod (77) fixedly mounted on the surface of the rotating ring (73); The rotating ring (73) is connected to the rotating shaft (71) via a threaded connection, the sliding ring (76) is in contact with the rotating rod (75), and a transmission belt 2 is provided between the rotating shaft (71) and the motor (64); The inclination angle of the stirring plate (74) is set to an inclination angle, and the circumferential surface of the rotating shaft (71) is provided with a reciprocating thread groove; The circumferential surface of the sliding ring (76) is provided with a compacting device for further compacting the dehydrated sludge, and the compacting device includes an L-shaped plate (81), the L-shaped plate (81) is fixedly mounted on the circumferential surface of the sliding ring (76), a closing plate (82) is fixedly mounted on the surface of the L-shaped plate (81), a pressure plate (83) is fixedly mounted on one end of the L-shaped plate (81) away from the sliding ring (76), an inclined plate (84) is fixedly mounted on the surface of the L-shaped plate (81), an arc plate (85) is slidably mounted on the surface of the main body (1), an inclined block (86) is fixedly mounted on the surface of the arc plate (85), a telescopic elastic rod 1 (87) is fixedly mounted on the surface of the mud cake frame (67), a chassis (88) is slidably mounted on the bottom of the main body (1), and a telescopic elastic rod 2 (89) is fixedly mounted on the bottom of the main body (1); The closing plate (82) is slidably connected to the circumferential surface of the separation cylinder (4), the closing plate (82) is slidably connected to the circumferential surface of the centrifugal cylinder (65), the surface of the pressure plate (83) is provided with filter holes, the surface of the inclined plate (84) close to the inclined block (86) is provided as inclined surface 1, the surface of the inclined block (86) close to the inclined plate (84) is provided as inclined surface 2, the free end of the telescopic elastic rod 1 (87) is fixedly connected to the arc plate (85), the free end of the telescopic elastic rod 2 (89) is fixedly connected to the chassis (88), the L-shaped plate (81) slides through the surface of the main body (1), and the surface of the chassis (88) is provided with a traction hole.

2. A method for dewatering water-contaminated sludge used in water conservancy and river channel management, according to the device for dewatering water-contaminated sludge used in water conservancy and river channel management according to claim 1, characterized in that: include: Step 1: The sewage is transported into the equipment through the feed port (51), and the crushing mechanism (61) is started. The output end of the crushing mechanism (61) rotates to crush the large particles of impurities in the sewage, thereby achieving the initial treatment and crushing of the sewage. The staff adjusts the discharge rate of the water sludge impurities by rotating the regulating box (3); Step 2: The crushing mechanism (61) rotates to drive the transmission belt to rotate, and the transmission belt rotates to drive the screw rod (63) to rotate. The rotation of the screw rod (63) drives the large particles of impurities accumulated inside the regulating box (3) to be transported to the discharge port; Step 3: The sludge and water flow into the water inlet of the separation cylinder (4) through the fixed box (2). At this time, the motor (64) is started. Since the output end of the motor (64) is in contact with the fixed frame (66), the output end of the motor (64) rotates to drive the fixed frame (66) to rotate. The fixed frame (66) rotates to drive the centrifugal cylinder (65). At the same time, the sludge and water pass through the separation cylinder (4) and enter the interior of the centrifugal cylinder (65). The centrifugal cylinder (65) rotates to throw out the sludge and water accumulated inside by centrifugal force. Step 4: Water is thrown out through the filter holes opened on the circumferential surface of the centrifugal cylinder (65), and the sludge continues to accumulate inside the centrifugal cylinder (65). The water flows out through the water outlet (52), and then the dehydrated sludge falls through the centrifugal cylinder (65). The dry sludge accumulated inside the mud cake frame (67) is then filtered by a filter press.

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