Full-automatic cost-reducing efficiency-increasing sludge deep dehydration process and equipment

Abstract

The invention discloses a full-automatic cost-reducing efficiency-increasing sludge deep dehydration process and equipment, the equipment comprises a filter press rack, a filter plate assembly, a cleaning assembly, an overturning water tank, a sludge plate conveying belt and a conditioning pool assembly, through the linkage design of a hydraulic machine telescopic rod and a shear fork type telescopic rod, equal-distance synchronous opening and closing of a filter plate are realized, and the efficiency of sludge deep dehydration is improved; a transverse vibration cake removing technology driven by a reciprocating mechanism is combined, the dehydration period is greatly shortened, manual intervention is reduced, seamless connection of a filter plate and the reciprocating mechanism after opening is ensured by arranging an automatic butt joint mechanism of a movable limiting block assembly, a convex block and a connecting plate, the continuity of vibration cake removing is improved, and the cake removing efficiency is improved. Through the built-in ultrasonic sludge concentration sensor and the infrared moisture meter, the solid content of sludge and the moisture content of a mud cake are monitored in real time, the dosage of chemicals such as PAC and ferric salt is dynamically adjusted, and waste of the chemicals is avoided.

Description

Technical Field

[0001] The present invention relates to the field related to sludge treatment, and in particular to a fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process and equipment. Background Art

[0002] With the acceleration of urbanization and increasingly stringent environmental protection requirements, sludge treatment has become a vital link in sewage treatment plants. Deep sludge dewatering is a key step in sludge reduction and resource utilization, but existing technologies still have many shortcomings. Traditional filter presses mostly rely on manual operation, with low filter plate opening and closing efficiency and poor synchronization, resulting in long dewatering cycles and high energy consumption. The cleaning process requires shutdown and removal of the filter cloth, which has high maintenance costs and is prone to secondary pollution. In addition, the addition of chemical agents is mostly controlled by experience, and there is a lack of real-time monitoring and feedback mechanism for sludge solids content, which can easily lead to chemical waste or unstable dewatering effect. Existing equipment often relies on mechanical scrapers during the mud cake shedding stage, which has insufficient vibration effect and a high mud cake residue rate, affecting the efficiency of subsequent treatment. At the same time, the design of the cleaning sewage collection system is extensive, making it difficult to achieve efficient separation and discharge. The above problems restrict the automation, cost reduction, efficiency improvement and environmental performance of the sludge dewatering process. A new solution integrating intelligent control, efficient dewatering and cleaning maintenance is urgently needed. Summary of the Invention

[0003] Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process and equipment.

[0004] The present invention is achieved by constructing a fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment, which includes a filter press frame, a filter plate assembly, a cleaning assembly, a turnover water tank, a mud plate conveyor belt and a conditioning tank assembly. The filter plate assembly is installed on the top of the filter press frame, the cleaning assembly is provided on the top of the filter plate assembly, the filter plate assembly is provided with a turnover water tank, the mud plate conveyor belt is provided at the bottom of the turnover water tank, and the conditioning tank assembly is connected to the filter plate assembly; The filter plate assembly includes a fixed end plate, a movable end plate, a filter plate body, a guide rod, a scissor-type telescopic rod and a filter plate opening and closing device. The filter plate body is arranged between the fixed end plate and the movable end plate, and the filter plate body is provided with more than two groups. The front and rear sides of the filter plate body and the movable end plate slide laterally along the guide rod. The left and right ends of the guide rod are fixedly connected to the fixed end plate and the filter press frame respectively, and the bottom of the fixed end plate is fixedly connected to the filter press frame. The scissor-type telescopic rod is connected to the middle part of the front side of the filter plate body and the movable end plate. The scissor-type telescopic rod is used to control the equidistant and synchronous opening and closing of the filter plate body. The filter plate opening and closing device is installed at the right end of the movable end plate.

[0005] Preferably, the filter plate body includes a plate frame, a filter cloth, a connecting port, a mud injection hole and a slider. Filter cloth is provided on the left and right sides of the plate frame. Connecting ports are provided at the inner corners of the plate frame and the filter cloth. Mud injection holes are provided in the middle of the plate frame and the filter cloth. Sliders are fixed on the front and back sides of the plate frame. The middle of the slider is laterally slid by the guide rod, and the slider slides laterally along the guide rod.

[0006] Preferably, the filter plate opening and closing device includes a frame, a through hole, a hydraulic press telescopic rod, a support ring, a movable limit block assembly and a reciprocating mechanism. A through hole is provided in the middle of the right side of the frame, the hydraulic press telescopic rod passes through the through hole, and the left end of the hydraulic press telescopic rod extends into the frame, a support ring is fixed to the left side of the outer wall of the hydraulic press telescopic rod, and a movable limit block assembly is provided on the top of the frame, the movable limit block assembly is used to connect with the reciprocating mechanism, the reciprocating mechanism is used to control the reciprocating movement of the movable end plate and the filter plate body, and the reciprocating mechanism is installed on the top right side of the filter press frame, the frame is fixed to the right side of the movable end plate, the right end of the hydraulic press telescopic rod is connected to the hydraulic press, and the hydraulic press is used to control the extension and retraction of the hydraulic press telescopic rod.

[0007] The top end face of the lifting block is fixed with a key, and the left end of the key is fixed with a key, and the left end of the key is fixed with a key.

[0008] Preferably, the reciprocating mechanism includes an outer frame, a motor 1, a rotating disk, a connecting rod and a reciprocating rod. The motor 1 is fixedly installed on the front end of the outer frame, a rotating disk is provided inside the outer frame, and the output shaft at the rear end of the motor 1 is transmission-connected to the center of the front end of the rotating disk. The rear edge of the rotating disk is rotatably connected to one end of the connecting rod through a rotating shaft, and the other end of the connecting rod is rotatably connected to the right end of the reciprocating rod through a rotating shaft. The left end of the reciprocating rod extends out of the outer frame and is fixedly connected to the connecting plate. The outer frame is fixed to the top right side of the filter press frame.

[0009] Preferably, the cleaning assembly includes a gantry, a movable frame, an electric push rod, a vertical pipe, a horizontal connecting pipe and an oblique nozzle. Electric push rods are installed on both sides of the movable frame, and the bottom end of the electric push rod is fixedly connected to the gantry. The number of vertical pipes is consistent with the number of filter plate bodies. The top of the vertical pipe is fixedly connected to the movable frame, and the vertical pipes are connected by a horizontal connecting pipe. The vertical pipe vertically passes through the gantry, and oblique nozzles are installed on both sides of the bottom end of the vertical pipe. The left and right sides of the bottom of the gantry are respectively fixed to the fixed end plate and the filter press frame.

[0010] Preferably, the flip water trough includes a water guide trough, a drainage hole, a connecting shaft, a cylinder, a fixed shaft and a support frame. The left end of the water guide trough is provided with a drainage hole. The top of the rear side of the water guide trough is rotatably connected to the top of the cylinder through a connecting shaft. The bottom of the rear side of the water guide trough is rotatably connected to the support frame through a fixed shaft. The bottom end of the cylinder is rotatably connected to the support frame through a shaft. The support frame is fixed to the top of the frame of the mud plate conveyor belt. An infrared moisture meter is installed on the inner side of the frame of the mud plate conveyor belt. The infrared moisture meter is used to detect the moisture content of the mud cake. There are two flip water troughs, and the two flip water troughs are symmetrically arranged front to back. When the two flip water troughs are in a horizontal state, the water guide troughs of the two flip water troughs fit together.

[0011] Preferably, the conditioning tank assembly includes a conditioning tank, a sludge inlet pipe, an ultrasonic sludge concentration sensor, a support frame, a stirring shaft, a sludge pump and a doser. The top left side of the conditioning tank is connected to the sludge inlet pipe, an ultrasonic sludge concentration sensor is installed in the sludge inlet pipe, a stirring shaft is installed in the conditioning tank, and a motor for driving the stirring shaft is installed on the top of the conditioning tank. The right side of the conditioning tank is connected to the extraction end of the sludge pump through the sludge conveying pipe, and the output end of the sludge pump is connected to the fixed end plate through the sludge conveying pipe. The doser is installed on the support frame, and the doser is used to add chemicals to the conditioning tank.

[0012] Preferably, the doser includes a feeder housing, a second motor, a feeder rotating roller, a material guide trough, a loading box, a feed frame and a feed guide pipe. The second motor is installed on the front side of the feeder housing, and the feeder rotating roller is embedded in the inner middle part of the feeder housing. The output shaft of the second motor is transmission-connected to the center of the feeder rotating roller. A material guide trough is provided at the edge of the feeder rotating roller, and through holes are provided in the middle of the upper and lower ends of the feeder housing. The top edge of the feeder housing is fixedly connected to the loading box, and the bottom edge of the feeder housing is fixedly connected to the feed frame. The bottom middle of the feed frame is fixedly connected to the feed guide pipe, and the bottom end of the feed guide pipe is fixedly connected to the conditioning tank.

[0013] A fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process comprises the following steps: Step S1: The sludge is fed into the conditioning tank through the sludge inlet pipe, and the ultrasonic sludge concentration sensor detects the sludge solid content in real time; Step S2: According to the solid content of the sludge, the doser is controlled to add one of PAC, iron salt or organic polymer flocculant into the conditioning tank, and the stirring shaft fully mixes the agent with the sludge; Step S3: Control the telescopic rod of the hydraulic press to move leftward to push the filter plate bodies together, and transport the conditioned sludge into the filter plate bodies through the sludge pump for dehydration; Step S4: After dehydration is completed, the telescopic rod of the hydraulic press is controlled to move rightward, driving the movable end plate and the filter plate body to move rightward, and the movable end plate and the filter plate body are opened equidistantly by the scissor-type telescopic rod. After the opening is completed, the frame on the right side of the movable end plate is automatically connected to the reciprocating mechanism; Step S5: The water guide trough of the flip water trough is rotated to a vertical state by controlling the cylinder, and the movable end plate is driven to move back and forth laterally by the reciprocating mechanism. The movable end plate drives the filter plate body to move back and forth laterally synchronously by the scissor-type telescopic rod. The reciprocating movement of the filter plate body generates vibration, causing the mud cake to fall off the filter plate body. Step S6: The mud cake falls onto the mud conveyor belt, and the moisture content of the mud cake is detected in real time by an infrared moisture meter. When the moisture content is greater than 60%, the dosage of the reagent is increased; Step S7: The water guide trough of the flip water trough is rotated to a horizontal state by controlling the cylinder, and the filter cloth is dynamically cleaned at high pressure by the oblique nozzle of the cleaning component. The sewage generated by cleaning falls into the water guide trough and is discharged through the drainage hole.

[0014] The present invention has the following advantages: The present invention provides a fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process and equipment through improvements. Compared with similar equipment, the present invention has the following improvements: The present invention describes a fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process and equipment, which realizes equidistant and synchronous opening and closing of filter plates through the linkage design of the hydraulic press telescopic rod and the scissor-type telescopic rod. Combined with the transverse vibration de-cake technology driven by the reciprocating mechanism, the dehydration cycle is greatly shortened and manual intervention is reduced. By setting a movable limit block assembly and an automatic docking mechanism between the protrusion and the connecting plate, it is ensured that the filter plate is seamlessly connected to the reciprocating mechanism after opening, thereby improving the continuity of vibration de-cake. Through the built-in ultrasonic sludge concentration sensor and infrared moisture meter, the sludge solid content and mud cake moisture content are monitored in real time, and the dosage of reagents such as PAC and iron salts is dynamically adjusted to avoid reagent waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 Schematic diagram of the filter plate assembly structure of the present invention; Figure 3 It is a schematic diagram of the main structure of the filter plate of the present invention; Figure 4 It is a structural schematic diagram of the filter plate opening and closing device of the present invention; Figure 5 This is a schematic structural diagram of the movable limit block assembly of the present invention; Figure 6 This invention Figure 5 A partial enlarged view of area A; Figure 7 It is a schematic diagram of the internal structure of the reciprocating mechanism of the present invention; Figure 8 It is a schematic structural diagram of the cleaning component of the present invention; Figure 9 This is a left side view of the flip water tank structure of the present invention; Figure 10 It is a rear view of the flip sink of the present invention; Figure 11 It is a schematic structural diagram of the conditioning pool assembly of the present invention; Figure 12 It is a schematic structural diagram of the feeder of the present invention.

[0016] 1. Filter press frame; 2. Filter plate assembly; 3. Hydraulic press; 4. Cleaning assembly; 5. Turning trough; 6. Mud plate conveyor belt; 61. Infrared moisture meter; 7. Conditioning tank assembly; 21. Fixed end plate; 22. Movable end plate; 23. Filter plate body; 24. Guide rod; 25. Scissor-type telescopic rod; 26. Filter plate opening and closing device; 231. Plate frame; 232. Filter cloth; 233. Connecting port; 234. Mud injection hole; 235. Slider; 261. Frame; 262. Through hole; 263. Hydraulic press telescopic rod; 264. Support ring; 265. Movable stop block assembly; 266. Reciprocating mechanism; 2651. Vertical plate; 2652. Bump; 2653. Horizontal plate; 2654. Vertical rod; 2655. Spring; 2656. Fixed plate; 265 7. Connecting plate; 2661. Outer frame; 2662. Motor 1; 2663. Rotating disk; 2664. Connecting rod; 2665. Reciprocating rod; 41. Gantry; 42. Movable frame; 43. Electric push rod; 44. Vertical pipe; 45. Horizontal connecting pipe; 46. Oblique nozzle; 51. Water guide trough; 52. Drain hole; 53. Connecting shaft; 54. Cylinder; 55. Fixed shaft; 56. Support frame; 71. Conditioning tank; 72. Sludge inlet pipe; 73. Ultrasonic sludge concentration sensor; 74. Support frame; 75. Agitating shaft; 76. Sludge pump; 77. Dosing device; 771. Feeder housing; 772. Motor 2; 773. Feeding rotating roller; 774. Feeding chute; 775. Loading box; 776. Collecting frame; 777. Feeding pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the Figure 1-12The present invention is described in detail, and the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the embodiments described are only some embodiments of the present invention, not all 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.

[0018] See also Figure 1-7 The present invention provides a fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment, comprising a filter press frame 1, a filter plate assembly 2, a cleaning assembly 4, a turnover trough 5, a mud plate conveyor belt 6 and a conditioning tank assembly 7. The filter plate assembly 2 is mounted on the top of the filter press frame 1, the cleaning assembly 4 is provided on the top of the filter plate assembly 2, the filter plate assembly 2 is provided with a turnover trough 5, the mud plate conveyor belt 6 is provided at the bottom of the turnover trough 5, and the conditioning tank assembly 7 is connected to the filter plate assembly 2; The filter plate assembly 2 includes a fixed end plate 21, a movable end plate 22, a filter plate body 23, a guide rod 24, a scissor-type telescopic rod 25 and a filter plate opening and closing device 26. The filter plate body 23 is arranged between the fixed end plate 21 and the movable end plate 22. The filter plate body 23 is provided with more than two groups. The front and rear sides of the filter plate body 23 and the movable end plate 22 slide laterally along the guide rod 24. The left and right ends of the guide rod 24 are fixedly connected to the fixed end plate 21 and the filter press frame 1 respectively, and the bottom of the fixed end plate 21 is fixedly connected to the filter press frame 1. The scissor-type telescopic rod 25 is connected to the middle part of the front side of the filter plate body 23 and the movable end plate 22. The scissor-type telescopic rod 25 is used to control the equidistant and synchronous opening and closing of the filter plate body 23. The filter plate opening and closing device 26 is installed at the right end of the movable end plate 22; The scissor-type telescopic rod 25 is a common linear drive device in the field of mechanical transmission. Its principle is based on the articulated structure of cross-rods to achieve telescopic movement. It has the characteristics of strong synchronization and uniform force. When the hydraulic press 3 drives the hydraulic press telescopic rod 263, the cross-rods of the scissor-type telescopic rod 25 expand or contract, pushing the movable end plate 22 and the filter plate body 23 to move synchronously. Through its equidistant telescopic characteristics, it ensures that multiple groups of filter plate bodies 23 are opened and closed synchronously. The filter plate body 23 includes a plate frame 231, a filter cloth 232, a communication port 233, a mud injection hole 234 and a slider 235. The filter cloth 232 is provided on both the left and right sides of the plate frame 231. The inner corners of the plate frame 231 and the filter cloth 232 are provided with a communication port 233. The middle of the plate frame 231 and the filter cloth 232 are provided with a mud injection hole 234. The front and rear sides of the plate frame 231 are fixed with sliders 235. The middle of the slider 235 is laterally slid by the guide rod 24, and the slider 235 slides laterally along the guide rod 24. The filter plate body 23 is a sludge dewatering component well known in the art and is a common dewatering component in a filter press. It generally includes a plate frame 231, a filter cloth 232, a slider 235, and a guide rod 24. In the prior art, the filter plate dewaters the sludge through mechanical pressure. The water is filtered through the filter cloth and then discharged, and the solid forms a mud cake. A through hole corresponding to the mud injection hole 234 is opened in the middle of the fixed end plate 21, and the through hole is connected to the output end of the sludge pump 76 through the sludge conveying pipe. A through hole corresponding to the connecting port 233 is opened at the internal corner of the fixed end plate 21, and the through hole is connected to the external water injection and air injection equipment. By injecting water into the plate frame 231, the diaphragms on both sides of the plate frame 231 are expanded, squeezing the sludge between the filter cloth 232, dehydrating the sludge to form a mud cake, and the mud cake is air-dried by air injection to reduce the moisture content of the mud cake.

[0019] The filter plate opening and closing device 26 includes a frame 261, a through hole 262, a hydraulic press telescopic rod 263, a support ring 264, a movable limit block assembly 265 and a reciprocating mechanism 266. A through hole 262 is provided in the middle part of the right side of the frame 261. The hydraulic press telescopic rod 263 passes through the through hole 262, and the left end of the hydraulic press telescopic rod 263 extends into the frame 261. A support ring 264 is fixed to the left side of the outer wall of the hydraulic press telescopic rod 263. A movable limit block assembly 265 is provided on the top of the frame 261. The movable limit block assembly 265 is used to be connected to the reciprocating mechanism 266. The reciprocating mechanism 266 is used to control the reciprocating movement of the movable end plate 22 and the filter plate body 23, and the reciprocating mechanism 266 is installed on the top right side of the filter press frame 1. The frame 261 is fixed to the right side of the movable end plate 22. The right end of the hydraulic press telescopic rod 263 is connected to the hydraulic press 3. The hydraulic press 3 is used to control the extension and retraction of the hydraulic press telescopic rod 263.

[0020] The movable limit block assembly 265 includes a vertical plate 2651, a protrusion 2652, a horizontal plate 2653, a vertical rod 2654, a spring 2655, a fixed plate 2656 and a connecting plate 2657. The top right side of the vertical plate 2651 is fixed with a protrusion 2652, the top right side of the horizontal plate 2653 is fixedly connected to the bottom end of the vertical plate 2651, the vertical plate 2651 vertically passes through the top wall of the frame 261, and the protrusion 2652 is set on the top of the frame 261, the horizontal plate 2653 is set on the inner top of the frame 261, the top left side of the horizontal plate 2653 is fixedly connected to the vertical rod 2654, and the vertical rod 2654 vertically passes through the top wall of the frame 261. The top left side of the horizontal plate 2653 passes through the top wall of the frame 261, and is elastically connected to the frame 261 through a spring 2655, and the spring 2655 is sleeved on the outside of the vertical rod 2654. The fixed plate 2656 is fixed to the top of the frame 261, and the bottom of the connecting plate 2657 is set between the fixed plate 2656 and the vertical plate 2651, and the left and right sides of the connecting plate 2657 are in contact with the fixed plate 2656 and the vertical plate 2651. The top of the connecting plate 2657 is connected to the reciprocating mechanism 266, and the left and right side surfaces of the horizontal plate 2653 are both inclined, and the top length of the horizontal plate 2653 is greater than the bottom length.

[0021] The reciprocating mechanism 266 includes an outer frame 2661, a motor 2662, a rotating disk 2663, a connecting rod 2664 and a reciprocating rod 2665. The motor 2662 is fixedly installed at the front end of the outer frame 2661, and the rotating disk 2663 is arranged inside the outer frame 2661. The output shaft at the rear end of the motor 2662 is transmission-connected to the center of the front end of the rotating disk 2663. The rear edge of the rotating disk 2663 is rotatably connected to one end of the connecting rod 2664 through a rotating shaft, and the other end of the connecting rod 2664 is rotatably connected to the right end of the reciprocating rod 2665 through a rotating shaft. The left end of the reciprocating rod 2665 extends out of the outer frame 2661 and is fixedly connected to the connecting plate 2657. The outer frame 2661 is fixed to the top right side of the filter press frame 1.

[0022] See also Figure 8 The cleaning assembly 4 includes a gantry 41, a movable frame 42, an electric push rod 43, a vertical pipe 44, a horizontal connecting pipe 45 and an oblique nozzle 46. Electric push rods 43 are installed on both sides of the movable frame 42, and the bottom end of the electric push rod 43 is fixedly connected to the gantry 41. The number of vertical pipes 44 is consistent with the number of filter plate bodies 23. The top of the vertical pipe 44 is fixedly connected to the movable frame 42, and the vertical pipes 44 are connected by a horizontal connecting pipe 45. The vertical pipe 44 vertically passes through the gantry 41, and oblique nozzles 46 are installed on both sides of the bottom end of the vertical pipe 44. The left and right sides of the bottom of the gantry 41 are respectively fixed to the fixed end plate 21 and the filter press frame 1; There are multiple vertical pipes 44, and they are set in the middle position after every two filter plate bodies 23 are opened. The oblique nozzles 46 installed on the left and right sides of the bottom of the vertical pipe 44 respectively flush the two adjacent filter plate bodies 23.

[0023] See also Figure 9-10 The turning water trough 5 includes a water guide trough 51, a drainage hole 52, a connecting shaft 53, a cylinder 54, a fixed shaft 55 and a support frame 56. The left end of the water guide trough 51 is provided with a drainage hole 52. The top of the rear side of the water guide trough 51 is rotatably connected to the top of the cylinder 54 through the connecting shaft 53. The bottom of the rear side of the water guide trough 51 is rotatably connected to the support frame 56 through the fixed shaft 55. The bottom end of the cylinder 54 is rotatably connected to the support frame 56 through the shaft. The support frame 56 is fixed to the top of the frame of the mud conveyor belt 6. An infrared moisture meter 61 is installed on the inner side of the frame of the mud conveyor belt 6. The infrared moisture meter 61 is used to detect the moisture content of the mud cake. There are two turning water troughs 5. The two turning water troughs 5 are symmetrically arranged front and back, and when the two turning water troughs 5 are in a horizontal state, the water guide troughs 51 of the two turning water troughs 5 fit together. The infrared moisture meter 61 is a mature online moisture detection technology. It uses the model Testo 606-1, is suitable for high humidity sludge environment, and has built-in temperature compensation.

[0024] See also Figure 11-12 The conditioning tank assembly 7 includes a conditioning tank 71, a sludge inlet pipe 72, an ultrasonic sludge concentration sensor 73, a support frame 74, a stirring shaft 75, a sludge pump 76 and a doser 77. The top left side of the conditioning tank 71 is connected to the sludge inlet pipe 72, and the ultrasonic sludge concentration sensor 73 is installed in the sludge inlet pipe 72. The stirring shaft 75 is installed in the conditioning tank 71, and a motor for driving the stirring shaft 75 is installed on the top of the conditioning tank 71. The right side of the conditioning tank 71 is connected to the extraction end of the sludge pump 76 through the sludge conveying pipe, and the output end of the sludge pump 76 is connected to the fixed end plate 21 through the sludge conveying pipe. The doser 77 is installed on the support frame 74. The doser 77 is used to add chemicals to the conditioning tank 71. In the sludge deep dewatering process, the ultrasonic sludge concentration sensor 73 is a mature online detection device. Its technical principles and application models are clearly described and widely used in existing technologies. The ultrasonic sludge concentration sensor 73 is designed based on the principle of "acoustic impedance difference." Its core mechanism is to transmit high-frequency ultrasonic waves (typically 1-5 MHz) to penetrate the sludge medium, and to detect concentration by utilizing the differences in the sound wave propagation characteristics of solid particles and water in the sludge. The ultrasonic sludge concentration sensor 73 uses a Siemens Sitrans SL ultrasonic sludge concentration meter based on the time difference detection (TDR) principle, which has strong resistance to bubble interference and high monitoring accuracy.

[0025] The doser 77 includes a feeder housing 771, a second motor 772, a feeder rotating roller 773, a guide trough 774, a loading box 775, a feed frame 776 and a feed guide pipe 777. The second motor 772 is installed on the front side of the feeder housing 771, and the feeder rotating roller 773 is embedded in the inner middle part of the feeder housing 771. The output shaft of the second motor 772 is transmission-connected to the center of the feeder rotating roller 773. A feed guide trough 774 is provided at the edge of the feeder rotating roller 773. Through holes are provided in the middle of the upper and lower ends of the feeder housing 771. The top edge of the feeder housing 771 is fixedly connected to the loading box 775, and the bottom edge of the feeder housing 771 is fixedly connected to the feed frame 776. The middle of the bottom end of the feed frame 776 is fixedly connected to the feed guide pipe 777, and the bottom end of the feed guide pipe 777 is fixedly connected to the conditioning tank 71.

[0026] A fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration process comprises the following steps: Step S1: Sludge is fed into the conditioning tank 71 through the sludge inlet pipe 72. The ultrasonic sludge concentration sensor 73 detects the sludge solid content in real time. In the inlet pipe, the ultrasonic sludge concentration sensor 73 monitors the sludge solid content (TS) in real time. The sensor uses the quantitative relationship between the propagation characteristics of ultrasound in sludge (such as sound velocity attenuation and reflection intensity) and the solid content to convert the acoustic parameters into TS values through a signal processing module. The detection accuracy can reach ±1%. The ultrasonic sludge concentration sensor 73 is based on the principle of "acoustic impedance difference". When ultrasonic waves propagate in different media, their attenuation is related to the density of the medium. Solid particles in sludge absorb and scatter ultrasonic energy significantly more than water. By measuring the change in signal strength at the receiving end, the solid content of the sludge can be inferred. The sensor is installed in the straight pipe section of the feed pipeline to avoid turbulent interference. The subsequent dosage of the reagent is dynamically adjusted according to the real-time TS value to achieve precise control. Step S2: Based on the solid content of the sludge, the doser 77 is controlled to add one of PAC, iron salt, or organic polymer flocculant into the conditioning tank 71. The preset algorithm is called according to the TS value to determine the dosage of PAC, iron salt, or organic polymer flocculant. The motor 2 772 of the doser 77 drives the blanking rotating roller 773 to rotate. The guide chute 774 periodically transports the agent from the charging box 775 to the collecting frame 776 in a fixed amount as the roller rotates. The agent is then injected into the conditioning tank 71 through the guide pipe 777. The motor drives the stirring shaft 75 to rotate to fully mix the agent with the sludge. Chemical selection is based on sludge properties (such as organic matter content). PAC compresses the sludge colloidal double layer through electrical neutralization; iron salts promote flocculation through adsorption, bridging, and sweeping. Cationic PAM forms large flocs by entanglement of sludge particles with long-chain polymers. The "quantitative feeding" mechanism of the dosing device 77 controls the single feeding amount through the volume of the guide chute 774, and combines with a variable frequency motor to achieve precise adjustment of the feeding rate. Step S3: Control the telescopic rod 263 of the hydraulic press to move to the left. The hydraulic press 3 drives the telescopic rod 263 of the hydraulic press to move to the left. When the telescopic rod 263 of the press moves to the left, the support ring 264 on the outside of the telescopic rod 263 of the press moves to the left synchronously. When the telescopic rod 263 of the press moves to the left until it is in contact with the right end of the movable end plate 22, the support ring 264 moves to the left side of the horizontal plate 2653, and the elastic potential energy generated by the spring 2655 pushes the horizontal plate 2653 downward. The horizontal plate 2653 drives the vertical plate 2651 and the protrusion 2652 to move downward. The protrusion 2652 limits the downward movement distance of the vertical plate 2651 to prevent the vertical plate 2651 from falling into the frame 261. The vertical plate 2651 moves downward to a height lower than the bottom end of the connecting plate 2657 to prevent the vertical plate 2651 from contacting the connecting plate 2657 when moving to the left. By pushing the movable end plate 22 to fit tightly with the filter plate body 23, a closed chamber is formed. The sludge pump 76 injects the conditioned sludge into the filter plate body 23 through the mud injection hole 234 at a pressure of 0.2-0.5 MPa. The filter cloth 232 intercepts solid particles and the water is discharged through the connecting port 233. The dehydration process adopts multi-stage gradient pressurization (0.5→1.0→1.5 MPa). Each stage of pressurization lasts for 3-5 minutes, gradually squeezing out the sludge pore water. In the high-pressure stage, the diaphragm is expanded by water injection to further compress the mud cake and reduce the rebound rate. Step S4: After dehydration is completed, the hydraulic press 3 drives the hydraulic press telescopic rod 263 to move to the right, and the hydraulic press telescopic rod 263 drives the support ring 264 to move to the right synchronously. The support ring 264 moves to the right side of the cross plate 2625. At this time, the support ring 264 does not lift the cross plate 2625. The hydraulic press telescopic rod 263 moves to the right and drives the movable end plate 22 and the filter plate body 23 to slide to the right synchronously along the guide rod 24 through the support ring 264. The scissor-type telescopic rods 25 are equidistantly extended through the hinge point to ensure that the spacing between the multiple groups of filter plate bodies 23 is evenly increased; After the filter plate body 23 is unfolded, the fixed plate 2656 is in contact with the left side wall of the connecting plate 2657. The telescopic rod 263 and the support ring 264 of the hydraulic press are controlled to move leftward to the bottom of the horizontal plate 2653. Since the left and right sides of the horizontal plate 2653 are inclined, the support plate 264 is lifted up during the process of moving leftward to the bottom of the horizontal plate 2653. The horizontal plate 2653 drives the vertical plate 2651 and the protrusion 2652 to move upward. At this time, the vertical plate 2651 moves to the right side of the connecting plate 2657. Step S5: The water guide trough 51 of the flip water trough 5 is controlled by the cylinder 54 to rotate to a vertical state, and the rotating disk 2663 is driven to rotate by controlling the motor 1 2662. The rotating disk 2663 drives the reciprocating rod 2665 and the connecting plate 2657 to move back and forth laterally through the connecting rod 2664. Since the left and right sides of the connecting plate 2657 are in contact with the fixed plate 2656 and the vertical plate 2651 at this time, the connecting plate 2657 drives the frame 261 and the movable end plate 22 to move back and forth laterally when moving back and forth laterally. The movable end plate 22 drives the filter plate body 23 to move back and forth laterally through the scissor-type telescopic rod 25, providing a power source for vibrating the cake, so that the mud cake falls off the filter plate body 23. Step S6: The mud cake falls onto the mud conveyor belt 6, and the moisture content of the mud cake is detected in real time by the infrared moisture meter 61. The instrument emits near-infrared light (wavelength 1450nm) and analyzes the moisture content through reflection spectrum. If the moisture content is greater than 60%, the dosage correction factor is calculated (for example, increase by 5%-10%), and the correction signal is sent to the motor 2 772 of the dosing device 77 to adjust the speed of the blanking rotating roller 773 and increase the dosage acceleration rate; Step S7: The water guide groove 51 of the flip water tank 5 is controlled by the cylinder 54 to rotate to the horizontal state, and the filter cloth 232 is dynamically cleaned with high pressure by the oblique nozzle 46 of the cleaning component 4. The electric push rod 43 of the cleaning component 4 presses down the movable frame 42, so that the oblique nozzle 46 is aimed at the surface of the filter cloth 232. The high-pressure water pump delivers clean water to each vertical pipe 44 through the horizontal connecting pipe 45. The water is sprayed by the oblique nozzle 46 at an angle of 30 degrees to remove the residual sludge in the pores of the filter cloth. The sewage is discharged along the water guide groove 51 through the drainage hole 52. The above shows and describes the basic principles, main features and advantages of the present invention, and the standard parts used in the present invention can be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0027] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment, characterized by: The filter press comprises a filter press frame (1), a filter plate assembly (2), a cleaning assembly (4), a turnover water trough (5), a mud plate conveyor belt (6) and a conditioning tank assembly (7), wherein the filter plate assembly (2) is installed on the top of the filter press frame (1), the cleaning assembly (4) is provided on the top of the filter plate assembly (2), the filter plate assembly (2) is provided with a turnover water trough (5), the mud plate conveyor belt (6) is provided at the bottom of the turnover water trough (5), and the conditioning tank assembly (7) is connected to the filter plate assembly (2); The filter plate assembly (2) comprises a fixed end plate (21), a movable end plate (22), a filter plate body (23), a guide rod (24), a scissor-type telescopic rod (25) and a filter plate opening and closing device (26), wherein the filter plate body (23) is arranged between the fixed end plate (21) and the movable end plate (22), and the filter plate body (23) is provided with two or more groups, and the front and rear sides of the filter plate body (23) and the movable end plate (22) slide laterally along the guide rod (24), and the guide rod (24) slides laterally. The left and right ends of the rod (24) are fixedly connected to the fixed end plate (21) and the filter press frame (1), respectively, and the bottom of the fixed end plate (21) is fixedly connected to the filter press frame (1). The scissor-type telescopic rod (25) is connected to the middle of the front side of the filter plate body (23) and the movable end plate (22). The scissor-type telescopic rod (25) is used to control the equidistant and synchronous opening and closing of the filter plate body (23). The right end of the movable end plate (22) is equipped with a filter plate opening and closing device (26).

2. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 1 is characterized by: The filter plate body (23) comprises a plate frame (231), a filter cloth (232), a communication port (233), a mud injection hole (234) and a slider (235). The filter cloth (232) is provided on both the left and right sides of the plate frame (231). The communication port (233) is provided at the inner corners of the plate frame (231) and the filter cloth (232). The mud injection hole (234) is provided in the middle of the plate frame (231) and the filter cloth (232). The slider (235) is fixed to both the front and rear sides of the plate frame (231). The middle of the slider (235) is slid laterally by the guide rod (24), and the slider (235) slides laterally along the guide rod (24).

3. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 1 is characterized by: The filter plate opening and closing device (26) comprises a frame (261), a through hole (262), a hydraulic press telescopic rod (263), a support ring (264), a movable limit block assembly (265) and a reciprocating mechanism (266). A through hole (262) is provided in the middle of the right side of the frame (261). The hydraulic press telescopic rod (263) passes through the through hole (262), and the left end of the hydraulic press telescopic rod (263) extends into the frame (261). A support ring (264) is fixed to the left side of the outer wall of the hydraulic press telescopic rod (263). A movable limit block assembly (265) is provided at the top, and the movable limit block assembly (265) is used to be connected to a reciprocating mechanism (266). The reciprocating mechanism (266) is used to control the reciprocating movement of the movable end plate (22) and the filter plate body (23). The reciprocating mechanism (266) is installed on the top right side of the filter press frame (1). The frame (261) is fixed to the right side of the movable end plate (22). The right end of the hydraulic press telescopic rod (263) is connected to the hydraulic press (3), and the hydraulic press (3) is used to control the telescopic movement of the hydraulic press telescopic rod (263).

4. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 3 is characterized by: The movable limit block assembly (265) includes a vertical plate (2651), a protrusion (2652), a horizontal plate (2653), a vertical rod (2654), a spring (2655), a fixed plate (2656) and a connecting plate (2657). The top right side of the vertical plate (2651) is fixed with a protrusion (2652). The top right side of the horizontal plate (2653) is fixedly connected to the bottom end of the vertical plate (2651). The vertical plate (2651) vertically penetrates the top wall of the frame (261). The protrusion (2652) is set at the top of the frame (261). The horizontal plate (2653) is set at the inner top of the frame (261). The top left side of the horizontal plate (2653) is fixedly connected to the vertical rod (2654). The vertical rod (2654) ) vertically passes through the top wall of the frame (261), the top left side of the horizontal plate (2653) is elastically connected to the frame (261) through a spring (2655), and the spring (2655) is mounted on the outside of the vertical rod (2654), the fixed plate (2656) is fixed to the top of the frame (261), the bottom of the connecting plate (2657) is set between the fixed plate (2656) and the vertical plate (2651), and the left and right sides of the connecting plate (2657) are in contact with the fixed plate (2656) and the vertical plate (2651), the top of the connecting plate (2657) is connected to the reciprocating mechanism (266), the left and right side surfaces of the horizontal plate (2653) are both inclined, and the top length of the horizontal plate (2653) is greater than the bottom length.

5. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 3 is characterized by: The reciprocating mechanism (266) comprises an outer frame (2661), a motor (2662), a rotating disk (2663), a connecting rod (2664) and a reciprocating rod (2665). The front end of the outer frame (2661) is fixedly mounted with the motor (2662). The interior of the outer frame (2661) is provided with the rotating disk (2663). The output shaft at the rear end of the motor (2662) is transmission-connected to the center of the front end of the rotating disk (2663). The rear edge of the rotating disk (2663) is rotationally connected to one end of the connecting rod (2664) via a rotating shaft. The other end of the connecting rod (2664) is rotationally connected to the right end of the reciprocating rod (2665) via a rotating shaft. The left end of the reciprocating rod (2665) extends out of the outer frame (2661) and is fixedly connected to the connecting plate (2657). The outer frame (2661) is fixed to the top right side of the filter press frame (1).

6. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 1 is characterized by: The cleaning assembly (4) includes a gantry (41), a movable frame (42), an electric push rod (43), a vertical pipe (44), a horizontal connecting pipe (45) and an oblique nozzle (46). The electric push rods (43) are installed on both the left and right sides of the movable frame (42), and the bottom ends of the electric push rods (43) are fixedly connected to the gantry (41). The number of the vertical pipes (44) is consistent with the number of the filter plate bodies (23). The tops of the vertical pipes (44) are fixedly connected to the movable frame (42), and the vertical pipes (44) are connected to each other through the horizontal connecting pipe (45). The vertical pipes (44) vertically penetrate the gantry (41), and the oblique nozzles (46) are installed on both the left and right sides of the bottom ends of the vertical pipes (44). The left and right sides of the bottom of the gantry (41) are respectively fixed to the fixed end plate (21) and the filter press frame (1).

7. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 1 is characterized by: The flip water trough (5) comprises a water guide trough (51), a drainage hole (52), a connecting shaft (53), a cylinder (54), a fixed shaft (55) and a support frame (56). The drainage hole (52) is provided at the left end of the water guide trough (51). The top of the rear side of the water guide trough (51) is rotatably connected to the top of the cylinder (54) via the connecting shaft (53). The bottom of the rear side of the water guide trough (51) is rotatably connected to the support frame (56) via the fixed shaft (55). The cylinder (54) The bottom end is rotatably connected to the support frame (56) via a rotating shaft, the support frame (56) is fixed to the top of the frame of the mud plate conveyor belt (6), an infrared moisture meter (61) is installed on the inner side of the frame of the mud plate conveyor belt (6), and the infrared moisture meter (61) is used to detect the moisture content of the mud cake, and the two turning water troughs (5) are provided with two turning water troughs (5), and the two turning water troughs (5) are symmetrically arranged in front and back, and when the two turning water troughs (5) are in a horizontal state, the water guide grooves (51) of the two turning water troughs (5) are in contact with each other.

8. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 1 is characterized by: The conditioning tank assembly (7) includes a conditioning tank (71), a sludge inlet pipe (72), an ultrasonic sludge concentration sensor (73), a support frame (74), a stirring shaft (75), a sludge pump (76) and a doser (77). The top left side of the conditioning tank (71) is connected to the sludge inlet pipe (72), the ultrasonic sludge concentration sensor (73) is installed in the sludge inlet pipe (72), the stirring shaft (75) is installed in the conditioning tank (71), and a motor for driving the stirring shaft (75) is installed on the top of the conditioning tank (71). The right side of the conditioning tank (71) is connected to the extraction end of the sludge pump (76) through the sludge conveying pipe, and the output end of the sludge pump (76) is connected to the fixed end plate (21) through the sludge conveying pipe. The doser (77) is installed on the support frame (74) and is used to add a reagent to the conditioning tank (71).

9. The fully automatic cost-reducing and efficiency-enhancing sludge deep dewatering equipment according to claim 8, characterized in that: The doser (77) includes a blanking device housing (771), a second motor (772), a blanking rotating roller (773), a material guide trough (774), a loading box (775), a material collection frame (776) and a material guide pipe (777). The front side of the blanking device housing (771) is equipped with the second motor (772), and the blanking rotating roller (773) is embedded in the inner middle of the blanking device housing (771). The output shaft of the second motor (772) is connected to the center of the blanking rotating roller (773) through transmission. A material guide groove (774) is provided at the edge of the blanking rotating roller (773), and through holes are provided in the middle of the upper and lower ends of the blanking device shell (771). The top edge of the blanking device shell (771) is fixedly connected to the charging box (775), and the bottom edge of the blanking device shell (771) is fixedly connected to the collection frame (776). The middle of the bottom end of the collection frame (776) is fixedly connected to the material guide pipe (777), and the bottom end of the material guide pipe (777) is fixedly connected to the conditioning tank (71).

10. The dehydration process of the fully automatic cost-reducing and efficiency-enhancing sludge deep dehydration equipment according to claims 1 to 9, characterized in that: The following steps are involved: Step S1: The sludge is fed into the conditioning tank (71) through the sludge inlet pipe (72), and the ultrasonic sludge concentration sensor (73) detects the sludge solid content in real time; Step S2: According to the solid content of the sludge, the doser (77) is controlled to add one of PAC, iron salt or organic polymer flocculant into the conditioning tank (71), and the stirring shaft (75) fully mixes the agent with the sludge; Step S3: Control the telescopic rod (263) of the hydraulic press to move leftward, push the filter plate bodies (23) to fit together, and transport the conditioned sludge to the filter plate bodies (23) via the sludge pump (76) for dehydration; Step S4: After dehydration is completed, the hydraulic press telescopic rod (263) is controlled to move rightward, driving the movable end plate (22) and the filter plate body (23) to move rightward, and the movable end plate (22) and the filter plate body (23) are opened equidistantly by the scissor-type telescopic rod (25). After the opening is completed, the frame (261) on the right side of the movable end plate (22) is automatically connected to the reciprocating mechanism (266); Step S5: The water guide groove (51) of the flip water trough (5) is controlled by the cylinder (54) to rotate to a vertical state, and the movable end plate (22) is driven to move back and forth horizontally by the reciprocating mechanism (266). The movable end plate (22) drives the filter plate body (23) to move back and forth synchronously horizontally through the scissor-type telescopic rod (25). The filter plate body (23) is vibrated by the reciprocating horizontal movement, so that the mud cake falls off the filter plate body (23); Step S6: The mud cake falls onto the mud conveyor belt (6), and the moisture content of the mud cake is detected in real time by an infrared moisture meter (61). When the moisture content is greater than 60%, the dosage of the reagent is increased; Step S7: The water guide groove (51) of the turning water tank (5) is controlled by the cylinder (54) to rotate to a horizontal state, and the filter cloth (232) is dynamically cleaned with high pressure by the oblique nozzle (46) of the cleaning assembly (4). The sewage generated by the cleaning falls into the water guide groove (51) and is discharged through the drainage hole (52).

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