Riverway sludge treatment system and treatment method thereof

Abstract

The present application relates to the technical field of sludge treatment, and discloses a river sludge treatment system and a treatment method thereof, wherein the treatment system comprises an environment-friendly cutter suction dredger, a mud outlet of the environment-friendly cutter suction dredger is connected with a booster pump ship through a suction pipe, a mud outlet end of the booster pump ship is connected with one end of a plurality of ground mud conveying pipes placed on the bank through a plurality of overwater mud conveying pipes, the other end of the ground mud conveying pipes is connected with a treatment mechanism, a screening platform and a sampling groove in the screening platform are arranged, sludge after primary precipitation in a sedimentation tank is subjected to secondary precipitation and then enters a homogenizing tank for treatment, and a mud slurry detector is arranged to detect the mud slurry from the sedimentation tank, so that the mud slurry can enter the homogenizing tank for treatment only when the concentration of the mud slurry reaches a set value, and the economic efficiency is optimized. The homogenizing tank is provided with a plurality of stirring rods on the top, the stirring rods are used to stir the tank body in the homogenizing tank, and the mixing of the mud slurry and the medicament is accelerated.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, and in particular to a river sludge treatment system and a treatment method thereof. Background Art

[0002] Dredging is a critical component of black and odorous water treatment projects, and its construction quality is directly related to the success of the project. Construction problems can negatively impact the effectiveness of subsequent treatment measures, leading to repeated deterioration of river water quality and the failure to achieve long-term river cleanliness. Furthermore, riverbed sediments are susceptible to secondary pollution during dredging. Traditional dredging methods suffer from issues such as inefficient sludge dewatering and unstable moisture content after dehydration, resulting in high sludge treatment costs.

[0003] Therefore, it is necessary to provide a river silt treatment system and a treatment method thereof to solve the above technical problems. Summary of the Invention

[0004] In order to solve the above technical problems, the present invention provides a river silt treatment system and a treatment method thereof.

[0005] The present invention provides a river silt treatment system, characterized by comprising: an environmentally friendly cutter suction vessel, wherein the mud outlet of the environmentally friendly cutter suction vessel is connected to a relay pump vessel via a mud suction pipe, the mud outlet end of the relay pump vessel is connected to one end of a multi-section ground mud pipe placed on the shore via a multi-section water mud pipe, and the other end of the ground mud pipe is connected to a treatment mechanism;

[0006] The processing mechanism includes a screening machine, the feeding port on the top of the screening machine is connected to the ground mud pipe, the front end face of the screening machine is provided with a debris outlet, the debris outlet is connected to the debris pipe, the right end face of the screening machine perpendicular to the debris outlet is provided with a coarse discharge port and a fine discharge port, the coarse discharge port is connected to the sedimentation tank through a sand discharge pipe connected to a sand pump, the fine discharge port is connected to the sedimentation tank through a mud discharge pipe connected to a mud discharge pump, the bottom mud discharge port of the sedimentation tank is connected to the mud pipe through a mud pump, one end of the mud pipe is connected to a screening platform, one end of the mud pipe is connected to a solenoid valve, a sampling tank is provided inside the screening platform, the end face of the sampling tank is connected to the mud pipe through a sampling tube with a sampling solenoid valve, and the sampling tank is provided with a device for detecting mud concentration. The detection end of the mud detector and the upper part of the mud detector are fixed on the top of the sampling trough. The bottom end of the inside of the screening platform is provided with a screening plate with screening holes. The bottom of the screening platform is connected to a homogenizing tank for processing the screened mud through a slurry discharge pipe. One end face of the homogenizing tank is connected to a storage tank for storing the medicine through a medicine pipe with a medicine dosing pump. The other end face of the homogenizing tank is connected to multiple slurry suction pipes with slurry suction pumps. The other end of the slurry suction pipe is connected to the feed port of the plate and frame filter press. One end of a conveyor belt is provided below the sludge discharge port of the plate and frame filter press. The other end of the conveyor belt is arranged above the stacking point. The plate and frame filter press is connected to multiple air tanks through multiple air intake pipes with air intake pumps. The air tank is arranged on one side of the homogenizing tank.

[0007] A sludge port is provided at the bottom of the sampling tank, and the sludge port is connected to the sludge tank through a No. 1 sludge pipe and a No. 1 sludge pump, and the sludge tank is connected to the sedimentation tank through a pipeline, and the sludge port is connected to the homogenization tank through a No. 2 sludge pipe and a No. 2 sludge pump;

[0008] The upper part of the sedimentation tank is connected to the purification tank through an overflow trough, the purification tank is connected to the upper part of the sedimentation tank through a drainage trough, the outlet end of the purification tank is connected to the tailwater tank, the outlet end of the tailwater tank is connected to the ecological protection tank, and the outlet end of the ecological protection tank is connected to the river.

[0009] Preferably, the above-water mud pipe includes a pipe body 1 made of steel, which is connected to a pipe body 2 made of rubber through a flange. A float that can provide buoyancy is installed at the bottom of the pipe body 1. The material of the above-ground mud pipe is UPVC, and the above-ground mud pipes are connected by gluing.

[0010] Preferably, the structure of the homogenizing tank is an inverted "L"-shaped box, and a plurality of stirring rods are provided inside the homogenizing tank. The tops of the stirring rods are connected to the stirring motor through couplings, and the stirring motor is arranged on the top of the homogenizing tank.

[0011] Preferably, the plate and frame filter press is connected to a plurality of air tanks via a plurality of air intake pipes with air intake pumps, and the air tanks are arranged on one side of the homogenizing tank.

[0012] Preferably, one end surface of the homogenizing tank is connected to a powder storage tank for storing powder via a powder adding pipe with a powder adding pump.

[0013] Preferably, a purification medicine tank is provided on one side of the purification tank, the bottom end of the purification medicine tank is connected to a dosing pipe via a dosing solenoid valve, and the dosing pipe is provided above the purification tank.

[0014] A method for treating river silt, characterized in that the specific steps are:

[0015] Step 1: The environmentally friendly cutter suction boat moves to the location where dredging is to be carried out to suck up the sludge, and then transmits the sucked sludge to the relay pump. The relay pump boat then delivers the transported sludge through the mud outlet, the water mud pipe and the ground mud pipe into the interior of the screening machine;

[0016] Step 2: The sludge is screened on a screening machine to separate it into garbage, coarse sludge and residual sludge. The screened garbage is discharged through the debris outlet of the screening machine, the coarse sludge enters the sedimentation tank through the sand pump, and the residual sludge enters the sedimentation tank through the mud pump;

[0017] Step 3: The transported sludge is precipitated in the sedimentation tank, and PAC reagent is added at the front end of the sedimentation tank to separate the mud and water. PAM reagent is added at the back end of the sedimentation tank to flocculate the mud. The surface water of the treated sludge overflows through the overflow tank to the purification tank for purification treatment, and the sludge at the bottom is pumped to the screening platform for the next screening treatment;

[0018] Step 4: When the mud enters the screening platform through the mud pipe, the mud is first drained to the sampling tank through the sampling pipe and the mud concentration is tested by the mud detector. When the mud concentration is greater than the set value, the solenoid valve is opened to allow the mud to flow into the screening plate, where it is screened. The screened mud then enters the homogenizing tank for processing.

[0019] Step 5: Add chemicals to the homogenizing tank through the chemical dosing pump to treat the mud, and stir the mud in the homogenizing tank through the stirring rod to accelerate the mixing of the chemicals and mud, and pump the mixed mud into the plate and frame filter press through the slurry pump

[0020] Step 6: The capillary water in the sludge is squeezed out through the plate and frame filter press, dehydrated and solidified, and finally becomes a finished mud cake. The finished mud cake is transported to the stacking point through a conveyor belt, and the capillary water generated by the plate and frame filter press flows into the purification tank through a pipe;

[0021] Step 7: The finished mud cakes at the stacking point are transported to the disposal center via environmentally friendly dump trucks for resource processing.

[0022] Preferably, the coarse sludge in the sedimentation tank in step 2 is transported to a sand disposal center by a transport vehicle for resource processing after settling for a period of time.

[0023] Preferably, before adding PAC and PAM in step 3, a concentration gradient test of sludge flocculation and concentration reagents is required to determine the most suitable reagent concentration.

[0024] Preferably, the water at the end of the ecological protection pool is sampled and tested, and can be discharged only after meeting the standards. The remaining water that passes the end test can be led to a plate and frame filter press to serve as flushing water.

[0025] Compared with related technologies, the river silt treatment system and treatment method provided by the present invention have the following beneficial effects:

[0026] 1. The present invention provides a screening platform and a sampling tank inside the screening platform. After the sludge has been initially precipitated in the sedimentation tank, it can be processed in the homogenization tank after secondary sedimentation. The mud detector is used to detect the mud coming from the sedimentation tank to ensure that the mud concentration reaches the set value before entering the homogenization tank for processing, thereby ensuring that its economic efficiency is optimized.

[0027] 2. The present invention provides a homogenizing tank and a plurality of stirring rods on the top of the homogenizing tank. The stirring rods can stir the tank body inside the homogenizing tank, thereby ensuring that the mud and the reagent are mixed faster and the mud is stirred more evenly. The mud is subjected to secondary flocculation treatment, thereby ensuring that the flow rate and concentration of the mud delivered to the plate and frame filter press are stable, so that the mud output and the water content of the mud output from the plate and frame filter press are stable and controllable.

[0028] 3. The present invention changes the power of the plate and frame filter press to air compression by providing an air tank, which can effectively improve the filtration efficiency of the plate and frame filter press and thus reduce the processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A working diagram of a river silt treatment system provided by the present invention;

[0030] Figure 2 This is the working flow diagram of the homogenization pool;

[0031] Figure 3 for Figure 1 The schematic diagram of the structure of the water mud pipe is shown;

[0032] Figure 4 for Figure 1 The schematic diagram of the screening machine structure shown;

[0033] Figure 5 for Figure 1 Schematic diagram of the homogenization tank structure shown;

[0034] Figure 6 For Figure 5 structure diagram of the screening platform shown in the figure;

[0035] Figure label: 1, pipe body one; 2, pipe body two; 3, flange; 4, float; 5, screening machine; 6, ground sludge pipe; 7, sundry pipe; 8, sand outlet pipe; 9, sand pump; 10, sludge outlet pipe; 11, sludge pump; 12, homogenizing tank; 13, stirring motor; 14, screening platform; 15, slurry pipe; 16, screening plate; 17, screening hole; 18, baffle; 19, sampling groove; 20, slurry detector; 21, sampling pipe. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0037] The specific implementation of the present application is described in detail below in combination with specific examples.

[0038] The river sludge treatment system provided by the present application comprises:

[0039] The sludge outlet of the environmental protection type cutter suction dredger is connected to the booster pump ship through the sludge suction pipe, the sludge outlet end of the booster pump ship is connected to one end of the multiple overwater sludge conveying pipes placed on the shore through the multiple overwater sludge conveying pipes, and the other end of the ground sludge conveying pipe 6 is connected to the treatment mechanism;

[0040] The processing mechanism includes a screening machine 5, the top of which is connected with a ground slurry pipe 6, and the front end surface of the screening machine 5 is provided with a sundry outlet connected with a sundry pipe 7, and the right end surface of the screening machine 5, which is perpendicular to the sundry outlet, is provided with a coarse discharge outlet and a fine discharge outlet, the coarse discharge outlet is connected with a desilting basin through a sand discharge pipe 8 connected with a sand pumping pump 9, the fine discharge outlet is connected with a sedimentation basin through a slurry discharge pipe 10 connected with a slurry pumping pump 11, the bottom slurry outlet of the sedimentation basin is connected with a slurry pipe 15 through a slurry pumping pump, one end of the slurry pipe 15 is connected with a screening platform 14, and the other end of the slurry pipe 15 is connected with an electromagnetic valve, the inside of the screening platform 14 is provided with a sampling groove 19, the end surface of the sampling groove 19 is connected with the slurry pipe 15 through a sampling pipe 21 provided with a sampling electromagnetic valve, the inside of the sampling groove 19 is provided with a detection end of a slurry detector 20 capable of detecting the concentration of slurry, the slurry detector 20 is fixed to the top of the sampling groove 19, the bottom end of the inside of the screening platform 14 is provided with a screening plate 16 provided with a screening hole 17, the bottom of the screening platform 14 is connected with a homogenizing basin 12 capable of processing the screened slurry through a slurry discharge pipe, one end surface of the homogenizing basin 12 is connected with a reagent tank storing reagents through a reagent pipe provided with a reagent adding pump, the other end surface of the homogenizing basin 12 is connected with a plurality of slurry pumping pipes provided with slurry pumping pumps, the other end of the slurry pumping pipes is connected with the feed inlet of a plate-and-frame filter press, one end of a conveying belt arranged below the sludge discharge outlet of the plate-and-frame filter press is arranged above a stacking point, and the plate-and-frame filter press is connected with a plurality of air tanks through a plurality of air inlet pipes provided with air inlet pumps, and the air tanks are arranged on one side of the homogenizing basin 12.

[0041] The bottom of the sampling groove 19 is provided with a sludge outlet connected with a first sludge pipe and a first sludge pump to a sludge groove, the sludge groove is connected with the sedimentation basin through a pipeline, and the sludge outlet is connected with the homogenizing basin 12 through a second sludge pipe and a second slurry pump.

[0042] The upper part of the sedimentation basin is connected with a purification basin through an overflow groove, the upper part of the desilting basin is connected with the purification basin through a drainage groove, the water outlet end of the purification basin is connected with a tail water basin, the water outlet end of the tail water basin is connected with an ecological guarantee basin, and the water outlet end of the ecological guarantee basin is connected with a river channel.

[0043] It should be noted that: because the surface mud pipe has to withstand the influence of water flow, wind and waves, and dredging construction, the swing amplitude of the floating pipe and the smoothness of the line must be strictly controlled. Small anchors are dropped in both directions every 100m to prevent the water flow and wind speed from causing the pipeline to swing significantly, affecting construction production. The surface mud pipe is connected section by section along the downstream and direction. Before the formal work begins, the integrity and tightness of the surface mud pipe must be checked: that is, clean water is sucked into the surface mud pipe to pressurize it. After the surface mud pipe is pressurized with clean water and monitored to ensure that it is sealed and leak-free along the entire line, the processing operation can be officially started. The surface mud pipe includes a pipe body 1 made of steel. The pipe body 1 is connected to the pipe body 2 2 made of rubber material through a flange 3. A float 4 that provides buoyancy is installed at the bottom of the pipe body 1. The material of the ground mud pipe 6 is UPVC, and the ground mud pipes 6 are connected by gluing.

[0044] In the embodiment of the present invention, reference Figure 3 As shown, the structure of the homogenizing tank 12 is an inverted "L"-shaped box. A plurality of stirring rods are provided inside the homogenizing tank 12. The tops of the stirring rods are connected to the stirring motor 13 through couplings. The stirring motor 13 is provided on the top of the homogenizing tank 12.

[0045] In the embodiment of the present invention, reference Figure 3 As shown, the plate and frame filter press is connected to multiple air tanks through multiple air intake pipes with air intake pumps, and the air tanks are arranged on one side of the homogenizing tank 12.

[0046] In the embodiment of the present invention, reference Figure 3 As shown, a purification medicine tank is provided on one side of the purification pool, and the bottom end of the purification medicine tank is connected to a dosing pipe through a dosing solenoid valve, and the dosing pipe is provided above the purification pool.

[0047] In the embodiment of the present invention, reference Figure 3 As shown, a garbage outlet is provided at the bottom of the screening platform, a rotatable baffle 18 is provided inside the garbage outlet, and the bottom of the garbage outlet is connected to a recovery pipe.

[0048] The specific steps of the method for treating river silt using the above-mentioned treatment system are as follows:

[0049] Step 1: The environmentally friendly cutter suction boat moves to the location where dredging is to be carried out to suck up the sludge, and transmits the sucked sludge to the relay pump. The relay pump boat delivers the transported sludge through the mud outlet, the water mud pipe and the ground mud pipe 6 into the interior of the screening machine 5;

[0050] Step 2: The sludge is screened on the screening machine 5 to separate it into garbage, coarse sludge and residual sludge. The screened garbage is discharged through the debris outlet of the screening machine 5, the coarse sludge enters the sedimentation tank through the sand pump 9, and the residual sludge enters the sedimentation tank through the mud pump;

[0051] Step 3: The transported sludge is precipitated in the sedimentation tank, and PAC reagent is added at the front end of the sedimentation tank to separate the mud and water. PAM reagent is added at the back end of the sedimentation tank to flocculate the mud. The surface water of the treated sludge overflows through the overflow trough to the purification tank for purification treatment, and the sludge at the bottom is pumped to the screening platform 14 for the next screening treatment;

[0052] Step 4: When the mud enters the screening platform 14 through the mud pipe 15, the mud is first drained to the sampling tank 19 through the sampling pipe 21 and the mud concentration is detected by the mud detector 20. When the mud concentration is greater than the set value, the solenoid valve is opened to allow the mud to flow onto the screening plate 16, where it is screened. The screened mud then enters the homogenizing tank for processing.

[0053] Step 5: Add chemicals to the homogenizing tank through the chemical dosing pump to treat the mud, and stir the mud in the homogenizing tank through the stirring rod to accelerate the mixing of the chemicals and mud, and pump the mixed mud into the plate and frame filter press through the slurry pump

[0054] Step 6: The capillary water in the sludge is squeezed out through the plate and frame filter press, dehydrated and solidified, and finally becomes a finished mud cake. The finished mud cake is transported to the stacking point through a conveyor belt, and the capillary water generated by the plate and frame filter press flows into the purification tank through a pipe;

[0055] Step 7: The finished mud cakes at the stacking point are transported to the disposal center via environmentally friendly dump trucks for resource processing.

[0056] It should be noted that: when the sludge concentration is greater than the set value, the No. 2 sludge pump is turned on to flow the sludge in the sampling tank into the homogenization tank; when the sludge concentration is not greater than the set value, the No. 1 sludge pump is turned on to return the sludge in the sampling tank to the sedimentation tank;

[0057] During transportation, the loading of each vehicle is controlled at about 4 / 5 of the maximum loading capacity to prevent silt from being spilled. All vehicles must be strictly washed and inspected before leaving to ensure that there is no sludge on the body and the roof is tightly closed to prevent road pollution. At the end of each day's processing, no dried sludge is allowed to be left on the site except under special circumstances. It is required to produce and transport the sludge on the same day. If the sludge cannot be transported due to rain or changes in environmental protection policies, the operation of the environmentally friendly cutter suction boat in the river must be stopped to prevent secondary pollution caused by excessive silt accumulation. The water at the end of the tailwater pool is sampled and tested. It can be discharged only after meeting the standards. The remaining water that passes the end test can be led to the plate and frame filter press for flushing.

[0058] Before adding PAC and PAM in step 3, a concentration gradient test of sludge flocculation and concentration reagents is required to determine the most suitable reagent concentration. The specific method is as follows:

[0059] First, the test agent concentration range is determined based on the solubility of the flocculation and concentration agent under the local construction environmental conditions. Within the selected range, the agent solution with a concentration gradient of 1 / 100 is prepared to conduct sludge flocculation and concentration tests.

[0060] Then, based on the data obtained from the first step of the test, a "reaction time-concentration curve" was drawn. According to the trend of the curve, the optimal reaction concentration range was selected. Within this range, a reagent solution with a concentration gradient of 1 / 1000 was prepared to carry out sludge flocculation and concentration tests respectively;

[0061] Finally, the optimal concentration of the drug reaction suitable for the test location is selected based on the second step of the test.

[0062] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0063] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention description and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A river silt treatment system, characterized in that: include: An environmentally friendly cutter suction boat, wherein the mud outlet of the environmentally friendly cutter suction boat is connected to a relay pump boat via a mud suction pipe, the mud outlet end of the relay pump boat is connected to one end of a multi-section ground mud pipe (6) placed on the shore via a multi-section water mud pipe, and the other end of the ground mud pipe (6) is connected to a processing mechanism; The processing mechanism includes a screening machine (5), wherein the feed port at the top of the screening machine (5) is connected to the ground mud delivery pipe (6), the front end face of the screening machine (5) is provided with a debris outlet, the debris outlet is connected to the debris pipe (7), the right end face of the screening machine (5) perpendicular to the debris outlet is provided with a coarse discharge port and a fine discharge port, the coarse discharge port is connected to the sedimentation tank through a sand discharge pipe (8) connected to a sand pump (9), the fine discharge port is connected to the sedimentation tank through a mud discharge pipe (10) connected to a mud discharge pump (11), the bottom mud discharge port of the sedimentation tank is connected to a mud pipe (15) through a mud pump, one end of the mud pipe (15) is connected to a screening platform (14), one end of the mud pipe (15) is connected to a solenoid valve, a sampling tank (19) is provided inside the screening platform (14), the end face of the sampling tank (19) is connected to the mud pipe (15) through a sampling pipe (21) with a sampling solenoid valve, and the inside of the sampling tank (19) is provided with a sampling tank (21). The slurry detector (20) is provided with a detection end for detecting the slurry concentration, the upper part of the slurry detector (20) is fixed on the top of the sampling trough (19), the bottom end of the screening platform (14) is provided with a screening plate (16) with screening holes (17), the bottom of the screening platform (14) is connected to a homogenizing tank (12) for processing the screened slurry through a slurry discharge pipe, one end face of the homogenizing tank (12) is connected to a storage tank for storing medicaments through a drug pipe with a drug dosing pump, the other end face of the homogenizing tank (12) is connected to a plurality of slurry suction pipes with slurry suction pumps, the other end of the slurry suction pipe is connected to the feed port of the plate and frame filter press, one end of a conveyor belt is provided below the sludge discharge port of the plate and frame filter press, the other end of the conveyor belt is provided above the stacking point, the plate and frame filter press is connected to a plurality of air tanks through a plurality of air intake pipes with air intake pumps, and the air tank is provided on one side of the homogenizing tank (12); A sludge port is provided at the bottom of the sampling tank (19), and the sludge port is connected to the sludge tank through a No. 1 sludge pipe and a No. 1 sludge pump, and the sludge tank is connected to the sedimentation tank through a pipeline, and the sludge port is connected to the homogenization tank (12) through a No. 2 sludge pipe and a No. 2 sludge pump; The upper part of the sedimentation tank is connected to the purification tank through an overflow trough, the purification tank is connected to the upper part of the sedimentation tank through a drainage trough, the outlet end of the purification tank is connected to the tailwater tank, the outlet end of the tailwater tank is connected to the ecological protection tank, and the outlet end of the ecological protection tank is connected to the river.

2. A river silt treatment system according to claim 1, characterized in that: A purification medicine tank is provided on one side of the purification pool. The bottom end of the purification medicine tank is connected to a dosing pipe through a dosing electromagnetic valve. The dosing pipe is arranged above the purification pool.

3. A river silt treatment system according to claim 1, characterized in that: The homogenizing tank (12) has an inverted "L"-shaped box body. A plurality of stirring rods are provided inside the homogenizing tank (12). The tops of the stirring rods are connected to a stirring motor (13) via a coupling. The stirring motor (13) is provided on the top of the homogenizing tank (12).

4. A river silt treatment system according to claim 1, characterized in that: One end surface of the homogenizing tank (12) is connected to a powder storage tank for storing powder via a powder feeding pipe with a powder feeding pump.

5. A river silt treatment system according to claim 1, characterized in that: A garbage outlet is provided at the bottom of the screening platform, a rotatable baffle (18) is provided inside the garbage outlet, and the bottom of the garbage outlet is connected to a recovery pipe.

6. A method for treating river silt using the river silt treatment system according to any one of claims 1 to 5, characterized in that: The specific steps are: Step 1: The environmentally friendly cutter suction boat moves to the location where silt is to be desilted to suck up the sludge, and transmits the sucked sludge to the relay pump through the sludge discharge end, through the water sludge pipe and the ground sludge pipe (6) and into the interior of the screening machine (5); Step 2: The sludge is screened on the screening machine (5) to separate the sludge into garbage, coarse sludge and residual sludge. The screened garbage is discharged through the debris outlet of the screening machine (5), the coarse sludge enters the sedimentation tank through the sand pump (9), and the residual sludge enters the sedimentation tank through the mud pump; Step 3: The transported sludge is precipitated in the sedimentation tank, and PAC reagent is added at the front end of the sedimentation tank to separate the mud and water. PAM reagent is added at the back end of the sedimentation tank to flocculate the mud. The surface water of the treated sludge overflows through the overflow tank to the purification tank for purification treatment, and the mud of the bottom sludge is pumped to the screening platform (14) for the next screening treatment; Step 4: When the mud enters the screening platform (14) through the mud pipe (15), the mud is first drained to the sampling tank (19) through the sampling pipe (21) and the mud concentration is detected by the mud detector (20). When the mud concentration is greater than the set value, the solenoid valve is opened to allow the mud to flow onto the screening plate (16), and the mud is screened by the screening plate (16). The screened mud enters the homogenization tank for processing; Step 5: Add chemicals to the homogenizing tank through the chemical dosing pump to treat the mud, and stir the mud in the homogenizing tank through the stirring rod to accelerate the mixing of the chemicals and mud, and pump the mixed mud into the plate and frame filter press through the slurry pump; Step 6: The capillary water in the sludge is squeezed out through the plate and frame filter press, dehydrated and solidified, and finally becomes a finished mud cake. The finished mud cake is transported to the stacking point through a conveyor belt, and the capillary water generated by the plate and frame filter press flows into the purification tank through a pipe; Step 7: The finished mud cakes at the stacking point are transported to the disposal center via environmentally friendly dump trucks for resource processing.

7. A processing method according to claim 6, characterized in that: After a period of sedimentation, the coarse sludge in the sedimentation tank in step 2 is transported to a sand disposal center by transport vehicles for resource processing.

8. A processing method according to claim 6, characterized in that: Before adding PAC and PAM in step 3, a concentration gradient test of sludge flocculation and concentration reagents is required to determine the most suitable reagent concentration.

9. A processing method according to claim 6, characterized in that: The water at the end of the tailwater pool is sampled and tested. It can be discharged only after meeting the standards. The remaining water that passes the end test is led to the plate and frame filter press to serve as flushing water.

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