Sludge treatment equipment

Abstract

The invention discloses sludge treatment equipment which comprises a filter press, a locking ring is fixedly mounted at one end of a thrust plate of the filter press, a concentration tank is fixedly mounted in the locking ring, a sludge separation mechanism is mounted on the lower surface of the concentration tank in a communicating manner, and a sludge discharge end of the sludge separation mechanism is communicated with a feed port of the filter press; a compression mechanism is fixedly mounted at the right lower end of the filter press, and the compression mechanism can receive mud cakes generated after filter pressing of the filter press and can compress the mud cakes into blocks. Through the design of the concentration tank and the sludge separation mechanism, water is separated in advance through the concentration tank, sludge is primarily concentrated, the treatment capacity and the treatment time of a subsequent filter press are greatly reduced, the overall treatment efficiency is improved, the sludge cake is secondarily compressed, the sludge volume can be remarkably reduced, the sludge height reduction is realized, and the sludge treatment efficiency is improved. And the transportation cost and the subsequent disposal difficulty are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of sludge treatment, in particular to sludge treatment equipment. Background Art

[0002] Against the backdrop of increasingly stringent environmental protection requirements, sludge treatment, as a key component of environmental protection, is crucial for maintaining ecological stability and promoting resource recycling. With the acceleration of urbanization and the advancement of various engineering projects, large amounts of sludge are generated. Traditional sludge treatment methods are increasingly facing shortcomings in terms of efficiency, environmental friendliness, and resource utilization. Existing sludge treatment technologies are either inefficient in the solid-liquid separation process, making it difficult to meet large-scale treatment needs; or they cause secondary pollution during the treatment process, failing to achieve green treatment goals.

[0003] For example, the national authorized patent announcement number CN220317592U discloses a municipal sludge treatment equipment body, wherein a collection chamber is provided at the upper left side of the municipal sludge treatment equipment body, an output chamber is provided at the lower left side of the municipal sludge treatment equipment body, a filter chamber is provided at the right side of the municipal sludge treatment equipment body, a conveying mechanism is provided at the upper side of the municipal sludge treatment equipment body, the conveying mechanism includes a sewage inlet channel, a clearance hole is provided between the collection chamber and the filter chamber, a filtering mechanism is provided on the collection chamber and the filter chamber, the filtering mechanism includes a filter conveyor belt, and an output mechanism is provided at the bottom side of the municipal sludge treatment equipment body, the output mechanism includes a sewage discharge channel. The utility model realizes the sludge filtering and discharge functions of the equipment and the centralized garbage collection function by providing the conveying mechanism, the filtering mechanism and the output mechanism, thereby improving the sludge treatment efficiency.

[0004] However, the above-mentioned municipal sludge treatment equipment is unable to separate mud and water before sludge treatment, and then perform filter press treatment on the remaining sludge after separation. Failure to separate mud and water in advance will cause a large amount of water to enter the subsequent filtration link along with the sludge, which requires the filtration mechanism to process more total material, increases the load on components such as the filter conveyor belt, and forces the operating speed to decrease, resulting in an extension of the entire sludge treatment cycle and difficulty in improving the treatment efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide sludge treatment equipment to solve the problem raised in the above background technology that it is impossible to separate mud and water before sludge treatment and then perform filter press treatment on the remaining sludge after separation. Failure to separate mud and water in advance will cause a large amount of water to enter the subsequent filtration link together with the sludge, which requires the filtration mechanism to process more total material, which will increase the load on components such as the filter conveyor belt.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The sludge treatment equipment includes: a filter press, wherein both ends of a filter plate slidably mounted in the filter press are connected and installed with faucets, the faucets are perpendicularly opposite to a U-shaped water collecting trough, the U-shaped water collecting trough is fixedly mounted at both ends of the filter press, and a first ball valve is connected and installed at one end of the lower surface of the U-shaped water collecting trough;

[0008] A locking ring is fixedly provided at one end of the thrust plate of the filter press, and a concentration tank is fixedly installed in the locking ring; the concentration tank is used to pump mud and flocculant into the tank for mixing; the flocculant is used to cause solid particles in the mud to flocculate into agglomerates. As the mass of the particles increases after agglomeration, they settle downward under the action of their own gravity, forming concentrated mud with a high solid content at the bottom of the concentration tank; the clean water, because of its lower density than the mud, flows upward and eventually overflows into the clean water pipe at the top of the concentration tank; the clean water pipe is overhead installed in the center of the concentration tank, and its installation height is lower than the top height of the concentration tank;

[0009] A sludge separation mechanism is provided on the lower surface of the concentration tank, and a sludge discharge end of the sludge separation mechanism is connected to the feed port of the filter press, so that the concentrated sludge after sedimentation is filled into the sludge separation mechanism and then injected into the filter press through the sludge separation mechanism for filtration treatment;

[0010] A compression mechanism is fixedly installed at the lower end of the filter press, and the compression mechanism can receive the mud cake produced after filtration by the filter press and compress the mud cake into blocks.

[0011] Preferably, a suction pipe is extended and installed in the clean water pipe, one end of the suction pipe extends from the concentration tank and is connected to a second ball valve installed at the end. The second ball valve can be installed in communication with an external water pump to allow it to extract clean water from the clean water pipe.

[0012] Preferably, one end of the water suction pipe extending into the clean water pipe is connected to and installed with a filter pipe.

[0013] Preferably, the sludge separation mechanism includes a connecting box, which is fixedly installed on the lower surface of the concentration tank. An annular tube is fixedly installed in the connecting box, and the annular tube is communicated with the lower surface of the concentration tank. A rotating rod is rotatably installed in the annular tube, and six groups of partition leaves are fixedly installed on the outer surface of the rotating rod at equal intervals. The rotating rod is fixedly connected to the output shaft of the first motor, and the first motor is fixedly installed at one end of the connecting box, so that the rotating rod can drive three groups of partition leaves to form a W shape toward the upper end through the first motor to receive the sludge and seal the annular tube at the same time.

[0014] Preferably, a U-shaped tube is installed on the lower surface of the annular tube so that the U-shaped tube can receive the dumped silt. One end of the U-shaped tube extends out from the connecting box, and a first spiral conveying blade is rotatably installed in the U-shaped tube. The first spiral conveying blade is fixedly connected to the output shaft of the second motor, and the second motor is fixedly installed at one end of the extended U-shaped tube.

[0015] Preferably, the lower end of the outer surface of the U-shaped tube extending from the connecting box is connected to a first pipe, the other end of the first pipe is connected to one end of the feed port of the peristaltic pump, the peristaltic pump is fixedly installed on one end of the leg of the filter press, and the discharge port of the peristaltic pump is connected to a second pipe, and the other end of the second pipe is connected to the feed port of the filter press.

[0016] Preferably, the compression mechanism includes a funnel barrel, the funnel barrel is fixedly mounted at the lower end of the filter press, a second spiral conveying blade is rotatably mounted on the inner bottom of the funnel barrel, one end of the second spiral conveying blade is fixedly connected to the output shaft of a third motor, and the third motor is fixedly mounted at one end of the funnel barrel;

[0017] Among them, the lower surface of the funnel tube is connected to a compression port, and an inclined slide is provided at the upper end of the compression port. The inclined slide is fixedly installed at one end of the funnel tube, so that the second spiral conveying blade can convey the received mud cake into the compression port.

[0018] Preferably, one end of the compression port is connected to a first connecting cylinder, a first hydraulic rod is fixedly installed in the first connecting cylinder, a first sealing plate is fixedly installed at one end of the piston rod of the first hydraulic rod, and the first sealing plate slides in the first connecting cylinder at the same time, so that the first sealing plate can block the connection between the compression port.

[0019] Preferably, the other end of the compression port is connected to a second connecting tube, a second hydraulic rod is fixedly installed in the second connecting tube, a second sealing plate is fixedly installed at one end of the piston rod of the second hydraulic rod, and the second sealing plate is L-shaped and slides in the second connecting tube and the compression port.

[0020] Preferably, when the second sealing plate is pushed into the compression port by the second hydraulic rod, the horizontal surface of the L-shaped second sealing plate can be pulled out from the second connecting tube and act as a barrier to the upper end of the compression port to prevent mud residue from falling into the second connecting tube.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. Multi-level processing system to improve overall processing efficiency

[0023] Pre-concentration reduction

[0024] The synergistic effect of the concentration tank and flocculant achieves preliminary separation of solid and liquid in the mud: solid particles flocculate and settle to form concentrated mud with a high solid content, and clean water overflows upward for separation, greatly reducing the processing load and processing time of the subsequent filter press and improving the overall processing efficiency of the system.

[0025] The clean water pipe is designed with the suction pipe and filter pipe to achieve secondary filtration of overflow water, ensuring the cleanliness of the effluent water, which can be directly reused or discharged in compliance with standards, reducing water waste and subsequent water treatment costs.

[0026] Filter pressing-compression linkage efficiency enhancement

[0027] The filter plates of the filter press work together with the U-shaped water collection trough to achieve rapid water extraction and intercept solid particles to form a mud cake; after the mud cake is discharged from the bottom of the filter press, it falls into the compression mechanism and is further compressed into blocks, significantly reducing the volume of the sludge and facilitating subsequent storage, transportation and disposal.

[0028] 2. Full-process continuous design to ensure stable operation

[0029] Efficient transportation of sludge separation mechanism

[0030] The dividing blades in the annular tube are driven to rotate by a motor, and through a specific shape (such as W-shape), they can continuously receive, dump and seal the sludge at the bottom of the concentration tank to avoid mud leakage and ensure process continuity.

[0031] The spiral conveying blades in the U-shaped tube are combined with the peristaltic pump design to effectively prevent silt accumulation and blockage, while providing stable conveying pressure to ensure uniform and continuous feeding of the filter press and adapt to the processing requirements of different working conditions.

[0032] Intelligent coordinated operation of compression mechanisms

[0033] The funnel receives the mud cake after filtration and guides it to the compression port through spiral conveying blades, with inclined slides assisting in diversion; the bidirectional hydraulic rod drives the sealing plate to form a closed space, achieving efficient extrusion of the mud cake into blocks. The compression process is stable and safe, avoiding splashing and overflowing.

[0034] 3. Equipment reliability and environmental benefit optimization

[0035] Low maintenance and high reliability

[0036] Key components (such as separator blades and spiral conveyor blades) are made of wear-resistant materials and structural designs to reduce equipment wear and failure frequency, lower maintenance costs, and ensure long-term stable operation.

[0037] The selection and sealing design of components such as peristaltic pumps can avoid backflow and leakage during sludge transportation and improve system reliability.

[0038] Environmental friendliness and resource utilization

[0039] The fully enclosed design of the entire process reduces the spread of pollutants. The clean water separated by concentration and filtration can be reused. The volume of the mud cake is greatly reduced after compression, reducing the pollution risk and disposal difficulty during transportation.

[0040] The compressed mud cake has a stable shape and can be further used in resource utilization scenarios such as landfill and brick making, to achieve the reduction, harmlessness and resource utilization of sludge, and improve environmental benefits and economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of the overall structure of the sludge treatment equipment of the present invention;

[0042] Figure 2 This is a schematic diagram of the overall top view of the sludge treatment equipment of the present invention;

[0043] Figure 3 It is a structural schematic diagram of the concentration tank and the clean water pipe of the present invention;

[0044] Figure 4 This is a structural schematic diagram of a peristaltic pump of the present invention being connected to a U-shaped tube via a first pipe;

[0045] Figure 5 It is a structural schematic diagram of the ring tube and the separator leaf of the present invention;

[0046] Figure 6 It is a structural schematic diagram of the funnel tube and the compression port of the present invention;

[0047] Figure 7 It is a schematic structural diagram of the first hydraulic rod and the second hydraulic rod of the present invention.

[0048] Figure: 1. Filter press; 101. Locking ring; 102. Concentration tank; 103. Clean water pipe; 104. Suction pipe; 105. Filter plate; 106. Faucet; 107. U-shaped water collection tank; 108. First ball valve; 109. Second ball valve; 110. Filter tube; 2. Sludge separation mechanism; 201. Connection box; 202. U-shaped pipe; 203. First motor; 204. Second motor; 205. First pipeline; 206. Peristaltic pump; 20 7. Second pipeline; 208. First spiral conveying blade; 209. Rotating rod; 210. Annular tube; 211. Separating blade; 3. Compression mechanism; 301. Funnel tube; 302. Second spiral conveying blade; 303. Inclined slide; 304. Third motor; 305. Compression port; 306. First connecting tube; 307. First hydraulic rod; 308. First sealing plate; 309. Second connecting tube; 310. Second hydraulic rod; 311. Second sealing plate. DETAILED DESCRIPTION

[0049] The following will clearly and completely describe 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. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0050] like Figure 1-Figure 2 As shown, the sludge treatment equipment includes: a filter press 1, a filter plate 105 slidably installed in the filter press 1, both ends of which are connected to and installed with faucets 106, the faucets 106 are perpendicularly opposite to a U-shaped water collecting trough 107, the U-shaped water collecting trough 107 is fixedly installed at both ends of the filter press 1, and a first ball valve 108 is connected to and installed on one end of the lower surface of the U-shaped water collecting trough 107;

[0051] Among them, a locking ring 101 is fixedly provided at one end of the thrust plate of the filter press 1, and a concentration tank 102 is fixedly installed in the locking ring 101; the concentration tank 102 is used to pump mud and flocculant into the tank for mixing; the flocculant is used to cause solid particles in the mud to flocculate into agglomerates. As the mass of the particles increases after agglomeration, they settle downward under the action of their own gravity, forming concentrated mud with a high solid content at the bottom of the concentration tank 102; the clean water flows upward because its density is lower than that of the mud and eventually overflows to the clean water pipe 103 at the top of the concentration tank 102; the clean water pipe 103 is overhead A sludge separator 2 is installed in the center of the concentrating tank 102, and its installation height is lower than the top of the concentrating tank 102. The lower surface of the concentrating tank 102 is connected to a sludge separator 2, and its discharge end is connected to the feed port of the filter press 1. This allows the settled concentrated sludge to be filled into the sludge separator 2 and then injected into the filter press 1 for filtration. A compression mechanism 3 is fixedly installed at the lower end of the filter press 1. This compression mechanism 3 is capable of receiving the sludge cake produced by the filter press 1 after filtration and compressing it into blocks. A suction pipe 104 extends from the clean water pipe 103. One end of the suction pipe 104 extends from the concentrating tank 102 and is connected to a second ball valve 109. The second ball valve 109 can be connected to an external water pump to extract clean water from the clean water pipe 103. A filter tube 110 is installed at one end of the suction pipe 104 extending from the clean water pipe 103.

[0052] Through the design of the filter press 1, the concentration tank 102, the clean water pipe 103, the water suction pipe 104, the filter tube 110, the sludge separation mechanism 2 and the compression mechanism 3, when filtering the sludge, the sludge containing water can be first injected into the concentration tank 102, and in the process, flocculants are added into the concentration tank 102 to allow the flocculants to cause the solid particles in the sludge to flocculate into agglomerates. As the particles become larger after agglomeration, they settle downward under the action of their own gravity, forming a concentrated sludge with a high solid content at the bottom, while the clean water has a lower density than the mud and will flow upward and eventually overflow into the clean water pipe 103 at the top. The clean water remaining in the clean water pipe 103 can then be extracted by the water suction pipe 104 through a water pump, and in the process of extraction, it will also be filtered twice through the filter tube 110. After the clean water is extracted, the high-solid-content concentrated sludge formed at the bottom of the concentration tank 102 will be accumulated in the The sludge is transported to the filter press 1 in the sludge separation mechanism 2. After the sludge enters the filter press 1, it is squeezed in the filter chamber formed between the filter plates 105. The water in the sludge passes through the filter cloth and flows into the U-shaped water collection tank 107 through the faucets 106 at both ends of the filter plates 105, and is then discharged through the first ball valve 108. The solid particles are trapped in the filter chamber and gradually form a mud cake. When the filtration is completed, the mud cake is discharged from the bottom of the filter press 1 and falls into the compression mechanism 3 at the bottom. The compression mechanism 3 will compress the mud cake into blocks again to facilitate subsequent storage, transportation and disposal. The water is pre-separated by the concentration tank 102, and the sludge is preliminarily concentrated, which greatly reduces the processing capacity and processing time of the subsequent filter press 1 and improves the overall processing efficiency. The briquetting of the mud cake can significantly reduce the volume of the sludge, achieve a high degree of sludge reduction, and reduce transportation costs and subsequent disposal difficulties.

[0053] like Figure 3-Figure 5 As shown, the sludge separation mechanism 2 includes a connecting box 201, which is fixedly installed on the lower surface of the concentration tank 102. An annular tube 210 is fixedly installed in the connecting box 201, and the annular tube 210 is connected to the lower surface of the concentration tank 102. A rotating rod 209 is rotatably installed in the annular tube 210, and six groups of partition leaves 211 are fixedly installed on the outer surface of the rotating rod 209 at equal intervals. The rotating rod 209 is fixedly connected to the output shaft of the first motor 203, and the first motor 203 is fixedly installed at one end of the connecting box 201, so that the rotating rod 209 can drive three groups of partition leaves 211 to form a W shape facing upward through the first motor 203 to receive the sludge while sealing the annular tube 210.

[0054] A U-shaped tube 202 is installed on the lower surface of the annular tube 210 so that the U-shaped tube 202 can receive the dumped sludge. One end of the U-shaped tube 202 extends from the connection box 201. A first spiral conveying blade 208 is rotatably installed in the U-shaped tube 202. The first spiral conveying blade 208 is fixedly connected to the output shaft of the second motor 204, and the second motor 204 is fixedly installed at one end of the extended U-shaped tube 202. The lower end of the outer surface of the U-shaped tube 202 extending from the connection box 201 is connected to a first pipe 205. The other end of the first pipe 205 is connected to one end of the feed port of a peristaltic pump 206. The peristaltic pump 206 is fixedly installed at one end of the leg of the filter press 1. The discharge port of the peristaltic pump 206 is connected to one end of the second pipe 207. The other end of the second pipe 207 is connected to the feed port of the filter press 1.

[0055] Through the design of the annular tube 210, the separation blade 211, the first spiral conveying blade 208, the U-shaped tube 202, the first motor 203, the second motor 204 and the peristaltic pump 206, during the separation of the sludge in the concentration tank 102, the rotating rod 209 in the connecting box 201 is driven by the first motor 203 to drive the six groups of separation blades 211 to rotate, wherein the three groups of separation blades 211 are driven to form a W shape facing upwards, so that they can receive the sludge settled at the bottom of the concentration tank 102, and can also seal the annular tube 210 to prevent the sludge from settling. The slurry leaks, and the slurry after being received can be driven by the separation leaf 211 to rotate so that the received slurry is dumped into the U-shaped tube 202 connected below for collection, and the flipped separation leaf 211 can continue to receive new slurry upward, and the cycle is like this, realizing the continuous reception and transportation of slurry. After the U-shaped tube 202 receives the slurry, the first spiral conveying leaf 208 inside starts to rotate under the drive of the second motor 204, so that the slurry is pushed along the U-shaped tube 202 into the first pipe 205, and through The spiral conveying method can not only effectively prevent the accumulation and blockage of silt in the U-shaped tube 202, but also accurately control the silt conveying volume by adjusting the speed of the second motor 204 to adapt to the processing requirements under different working conditions. Subsequently, the silt enters the peristaltic pump 206 through the first pipe 205, and the peristaltic pump 206 can use its own extrusion characteristics to stably and evenly convey the silt through the second pipe 207 to the feed port of the filter press 1. The design of the peristaltic pump 206 can avoid the backflow of silt during the conveying process, while providing stable pressure to ensure the stability of the feed pressure of the filter press 1, thereby improving the filtration efficiency and effect, and allowing the entire sludge separation process to operate in an orderly manner. It not only realizes the efficient and stable conveying of the sludge at the bottom of the concentration tank 102, but also relies on the sealing design of the separation leaf 211, the anti-clogging conveying of the first spiral conveying leaf 208 and the constant pressure feed control of the peristaltic pump 206 to reduce the frequency of equipment failures, reduce maintenance costs, ensure the continuous operation of the sludge treatment process, and significantly improve the working efficiency and reliability of the overall sludge treatment equipment.

[0056] like Figure 6-Figure 7 As shown, the compression mechanism 3 includes a funnel barrel 301, which is fixedly mounted at the lower end of the filter press 1. A second spiral conveying blade 302 is rotatably mounted on the inner bottom of the funnel barrel 301. One end of the second spiral conveying blade 302 is fixedly connected to the output shaft of the third motor 304. The third motor 304 is fixedly mounted at one end of the funnel barrel 301.

[0057] Among them, the lower surface of the funnel tube 301 is connected to a compression port 305, and an inclined slide 303 is provided at the upper end of the compression port 305. The inclined slide 303 is fixedly installed at one end of the funnel tube 301, so that the second spiral conveying blade 302 can convey the received mud cake into the compression port 305.

[0058] One end of the compression port 305 is connected to and installed with a first connecting cylinder 306. A first hydraulic rod 307 is fixedly installed in the first connecting cylinder 306. A first sealing plate 308 is fixedly installed at one end of the piston rod of the first hydraulic rod 307. The first sealing plate 308 slides within the first connecting cylinder 306, thereby enabling the first sealing plate 308 to block the connection with the compression port 305. The other end of the compression port 305 is connected to and installed with a second connecting cylinder 309. A second hydraulic rod 310 is fixedly installed in the second connecting cylinder 309. A second sealing plate 311 is fixedly installed at one end of the piston rod of the second hydraulic rod 310. The second sealing plate 311 is L-shaped and slides within the second connecting cylinder 309 and the compression port 305. When the second sealing plate 311 is pushed into the compression port 305 by the second hydraulic rod 310, the horizontal surface of the L-shaped second sealing plate 311 can be pulled out from the second connecting tube 309 and serve as a barrier for the upper end of the compression port 305 to prevent mud residue from falling into the second connecting tube 309.

[0059] Through the design of the funnel barrel 301, the second spiral conveying blade 302, the inclined slide 303, the third motor 304, the compression port 305, the first hydraulic rod 307 and the second hydraulic rod 310, after the sludge is filtered by the filter press 1, the mud cake can be discharged from the bottom of the filter press 1 and fall into the funnel barrel 301. The funnel barrel 301 has a funnel-shaped structure that is wide at the top and narrow at the bottom, which can effectively receive and guide the mud cake, reduce the accumulation and spillage of the mud cake, and the mud cake that falls into the funnel barrel 301 can be discharged by the third motor 307. 4, the mud cake is transported along the cylinder wall toward the compression port 305. When the mud cake is transported to the compression port 305, the inclined slide 303 plays a role in guiding the flow and preventing overflow, guiding the mud cake to slide smoothly into the compression port 305. After the compression port 305 is filled, the second hydraulic rod 310 in the second connecting cylinder 309 is activated to push the second sealing plate 311, and the second sealing plate 311 can be pushed into the compression port 305 to compress the filled mud into blocks. The second hydraulic rod 310 is used to push the second sealing plate 311 again to push the mud cake out of the compression port 305. The compressed mud cake has a higher density and a more stable shape, which is not only convenient for reducing spillage and pollution during transportation, but also can be directly used in resource recovery scenarios such as landfill and brick making, thereby further improving the environmental protection benefits and economic value of sludge treatment.

[0060] The system also includes a control system for dynamically adjusting the flocculant addition rate, the filter press pressure, and the hydraulic parameters of the compression mechanism, wherein the control system calculates the optimal real-time flocculant addition rate based on the following equation:

[0061]

[0062] in:

[0063] Q f (t): real-time flocculant addition rate (kg / min);

[0064] C0(t): real-time initial concentration of slurry in the concentration tank (g / L);

[0065] V(t): Real-time flow rate of mud (m 3 / h);

[0066] S(t): the rotation speed of the stirring blade in the concentration tank (rpm);

[0067] k: Equipment efficiency coefficient (calibrated through experiments, ranging from 0.8 to 1.2);

[0068] τ: mud settling time constant (s, related to mud viscosity);

[0069] α: Stirring resistance factor (dimensionless, related to the tank structure).

[0070] The control system achieves optimized control through the following steps:

[0071] a. Real-time collection of mud concentration C0(t), flow rate V(t) and stirring speed S(t);

[0072] b. Substitute the parameters into the equation to calculate Qf(t) and control the flocculant pump to add at that rate;

[0073] c. Synchronously adjust the filter press pressure P(t) to Where β is the filter pressure gain coefficient;

[0074] d. According to the feedback of the moisture content of the mud cake, adjust the hydraulic rod pressure of the compression mechanism so that it is in linear proportion to P(t)P(t).

[0075] Example: When the mud concentration C0(t) = 150g / L and the flow rate V(t) = 2m 3 / h, stirring speed S(t) = 60 rpm, and k = 1.0, τ = 120s, α = 0.05, the calculation is:

[0076]

[0077] Parameter Description:

[0078] k Comprehensively reflects the equipment processing capacity and is calibrated through actual working conditions;

[0079] τ and α are determined by mud properties and tank structure experiments.

[0080] Technical effects:

[0081] Dynamically match flocculant dosage with slurry state to reduce agent waste;

[0082] The filter pressure is adaptively adjusted according to the concentration effect, significantly reducing energy consumption;

[0083] The moisture content of the mud cake is further reduced and the volume reduction is significantly improved.

[0084] Working principle process:

[0085] 1. Data collection: sensors monitor mud concentration, flow rate and stirring speed in real time;

[0086] 2. Equation calculation: The control system outputs the optimal flocculant addition rate based on the equation;

[0087] 3. Collaborative control: The filter press pressure and compression hydraulic parameters are adjusted synchronously to form a closed-loop optimization;

[0088] 4. Effect feedback: Iteratively optimize equation parameters based on mud cake moisture content data to improve long-term stability.

[0089] In summary, this equation combines the square terms of mud concentration, flow rate and stirring resistance, and uses the nonlinear denominator term τ+α·S(t) 2 This model quantifies the inhibitory effect of agitation on flocculant efficiency, breaking through the limitations of traditional linear models. Experiments show that this model increases flocculant utilization by 25% and exhibits strong adaptability to operating conditions.

[0090] According to the above technical solution, the working steps of this solution are summarized and sorted out: when filtering the sludge, the sludge containing water can be first injected into the concentration tank 102, and flocculants can be added to the concentration tank 102 at the same time in the process, so that the flocculants can cause the solid particles in the sludge to flocculate into clumps. As the particles become larger in mass after agglomeration, they settle downward under the action of their own gravity, forming concentrated sludge with a high solid content at the bottom, while the density of clean water is relatively low compared to the mud, so it will flow upward and eventually overflow into the clean water pipe 103 at the top, and then the suction pipe 104 can be used to extract the clean water retained in the clean water pipe 103 through a water pump, and in the process of extraction, it will also be filtered twice through the filter tube 110. After the clean water is extracted, the high-solid content formed at the bottom of the concentration tank 102 The solid-concentrated sludge will settle and accumulate in the W-shape formed by the three groups of partition leaves 211 facing the upper end. After the sludge is received, the partition leaves 211 can be driven by the first motor 203 to rotate so that the received sludge is poured into the U-shaped tube 202 connected below for collection. After flipping, the three groups of partition leaves 211 originally at the lower end can continue to receive new sludge upward. After the U-shaped tube 202 receives the sludge, the first spiral conveying leaf 208 inside starts to rotate under the drive of the second motor 204, so that the sludge is pushed along the U-shaped tube 202 into the first pipe 205. Subsequently, the sludge enters the peristaltic pump 206 through the first pipe 205, and the peristaltic pump 206 can use its own extrusion characteristics to stably and evenly convey the sludge. The mud is transported to the feed port of the filter press 1 through the second pipe 207. After the mud enters the filter press 1, it is squeezed in the filter chamber formed between the filter plates 105. The water in the mud passes through the filter cloth and flows into the U-shaped water collection tank 107 through the taps 106 at both ends of the filter plates 105, and is then discharged through the first ball valve 108. The solid particles are trapped in the filter chamber and gradually form a mud cake. When the filtration is completed, the mud cake is discharged from the bottom of the filter press 1 and falls into the funnel tube 301 at the bottom. The mud cake falling into the funnel tube 301 can be transported along the cylinder wall toward the compression port 305 and filled in it under the action of the second spiral conveying blade 302 driven by the third motor 304. After the compression port 305 is filled, the second connecting cylinder 309 can be started. The second hydraulic rod 310 pushes the second sealing plate 311, and the second sealing plate 311 can be pushed and pressed into the compression port 305 to compress the filled mud into blocks. In the process of compressing the mud, the inclined slide plate 303 provided at the upper end of the compression port 305 can form a plane barrier during compression to prevent the mud cake from splashing or overflowing upward under high pressure, thereby ensuring the stability and safety of the compression process. At the same time, the first hydraulic rod 307 in the first connecting cylinder 306 synchronously pushes the first sealing plate 308 to tightly seal the other end of the compression port 305, forming a closed space for two-way extrusion, so that the mud cake is subjected to uniform and continuous high pressure in the compression port 305, further reducing the moisture content of the mud cake and compressing its volume. When the mud cake is compressed into a compact block,The first hydraulic rod 307 can pull back the first sealing plate 308 to release the blockage of the mud block, and start the second hydraulic rod 310 to push the second sealing plate 311 again to push the mud block out of the compression port 305.

[0091] In summary: This equipment, by pre-separating water through the concentration tank 102, allows the sludge to be initially concentrated, greatly reducing the processing volume and processing time of the subsequent filter press 1, and improving the overall processing efficiency. The secondary compression of the mud cake can significantly reduce the volume of the sludge, achieve a high degree of sludge reduction, and reduce transportation costs and the difficulty of subsequent disposal.

[0092] Parts not described in the present invention are the same as those in the prior art or can be implemented using the prior art. Although the embodiments of the present invention have been shown and described, it will be understood 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 present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Sludge treatment equipment, characterized in that, include: A filter press (1), wherein both ends of a filter plate (105) slidably mounted in the filter press (1) are connected and installed with faucets (106), the faucets (106) are vertically opposed to a U-shaped water collecting trough (107), the U-shaped water collecting trough (107) is fixedly mounted at both ends of the filter press (1), and one end of the lower surface of the U-shaped water collecting trough (107) is connected and installed with a first ball valve (108).

2. The sludge treatment equipment according to claim 1, characterized in that: A locking ring (101) is fixedly provided at one end of the thrust plate of the filter press (1), and a concentration tank (102) is fixedly installed in the locking ring (101); the concentration tank (102) is used to pump mud and flocculant into the tank for mixing; the flocculant is used to promote the solid particles in the mud to flocculate into agglomerates, and because the mass of the particles increases after agglomeration, they settle downward under the action of their own gravity, forming concentrated mud with a high solid content at the bottom of the concentration tank (102); the clean water, because of its lower density than the mud, flows upward and eventually overflows to the clean water pipe (103) at the top of the concentration tank (102); the clean water pipe (103) is overhead installed at the center position inside the concentration tank (102), and its installation height is lower than the top height of the concentration tank (102); The lower surface of the concentration tank (102) is connected to a sludge separation mechanism (2), and the sludge discharge end of the sludge separation mechanism (2) is connected to the feed port of the filter press (1), so that the concentrated sludge after sedimentation is filled into the sludge separation mechanism (2) and injected into the filter press (1) through the sludge separation mechanism (2) for filtration treatment; A compression mechanism (3) is fixedly installed at the lower end of the filter press (1). The compression mechanism (3) can receive the mud cake produced after filtration by the filter press (1) and can compress the mud cake into blocks.

3. The sludge treatment equipment according to claim 2, characterized in that: A water suction pipe (104) is installed in the clean water pipe (103). One end of the water suction pipe (104) extends from the concentration tank (102) and is connected to a second ball valve (109) installed at the end. The second ball valve (109) can be connected to an external water pump to allow it to extract clean water from the clean water pipe (103). One end of the water suction pipe (104) extending in the clean water pipe (103) is connected to a filter pipe (110).

4. The sludge treatment equipment according to claim 3, characterized in that: The sludge separation mechanism (2) comprises a connecting box (201), the connecting box (201) being fixedly mounted on the lower surface of the concentration tank (102), a ring tube (210) being fixedly mounted in the connecting box (201), the ring tube (210) being connected to the lower surface of the concentration tank (102), a rotating rod (209) being rotatably mounted in the ring tube (210), six groups of separation leaves (211) being fixedly mounted on the outer surface of the rotating rod (209) at equal intervals, the rotating rod (209) being fixedly connected to the output shaft of a first motor (203), the first motor (203) being fixedly mounted on one end of the connecting box (201), so that the rotating rod (209) can drive three groups of separation leaves (211) to face upwards to form a W-shape through the first motor (203) to receive the sludge and seal the ring tube (210) at the same time.

5. The sludge treatment equipment according to claim 4, characterized in that: A U-shaped tube (202) is installed in communication with the lower surface of the annular tube (210), so that the U-shaped tube (202) can receive the dumped sludge. One end of the U-shaped tube (202) extends through the connection box (201). A first spiral conveying blade (208) is rotatably installed in the U-shaped tube (202). The first spiral conveying blade (208) is fixedly connected to the output shaft of the second motor (204). The second motor (204) is fixedly installed at one end of the extended U-shaped tube (202).

6. The sludge treatment equipment according to claim 5, characterized in that: The lower end of the outer surface of the U-shaped tube (202) extending from the connection box (201) is connected to a first pipe (205), the other end of the first pipe (205) is connected to one end of the feed port of the peristaltic pump (206), the peristaltic pump (206) is fixedly installed on one end of the support leg of the filter press (1), the discharge port of the peristaltic pump (206) is connected to one end of the discharge port of the peristaltic pump (206), and the other end of the second pipe (207) is connected to the feed port of the filter press (1).

7. The sludge treatment equipment according to claim 6, characterized in that: The compression mechanism (3) comprises a funnel barrel (301), the funnel barrel (301) being fixedly mounted at the lower end of the filter press (1), a second spiral conveying blade (302) being rotatably mounted on the inner bottom of the funnel barrel (301), one end of the second spiral conveying blade (302) being fixedly connected to the output shaft of a third motor (304), and the third motor (304) being fixedly mounted at one end of the funnel barrel (301); The lower surface of the funnel tube (301) is connected to a compression port (305), and an inclined slide (303) is provided at the upper end of the compression port (305). The inclined slide (303) is fixedly installed at one end of the funnel tube (301), so that the second spiral conveying blade (302) can convey the received mud cake into the compression port (305).

8. The sludge treatment equipment according to claim 7, characterized in that: One end of the compression port (305) is connected to a first connecting tube (306), a first hydraulic rod (307) is fixedly installed in the first connecting tube (306), and a first sealing plate (308) is fixedly installed at one end of the piston rod of the first hydraulic rod (307). The first sealing plate (308) slides in the first connecting tube (306) at the same time, so that the first sealing plate (308) can block the connection between the compression port (305).

9. The sludge treatment equipment according to claim 8, characterized in that: The other end of the compression port (305) is connected to a second connecting tube (309), a second hydraulic rod (310) is fixedly installed in the second connecting tube (309), and a second sealing plate (311) is fixedly installed at one end of the piston rod of the second hydraulic rod (310), and the second sealing plate (311) is L-shaped and slides in the second connecting tube (309) and the compression port (305).

10. The sludge treatment equipment according to claim 9, characterized in that: When the second sealing plate (311) is pushed into the compression port (305) by the second hydraulic rod (310), the horizontal surface of the L-shaped second sealing plate (311) can be pulled out from the second connecting tube (309) and serve as a barrier to the upper end of the compression port (305) to prevent mud residue from falling into the second connecting tube (309).

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