Sludge treatment device adopting wave induction and carbonization synergism

Abstract

The invention provides a wave induction synergistic carbonization sludge treatment device which comprises a furnace main body, a mixing box is arranged above the furnace main body, a centrifugal machine main body is arranged above the mixing box, a cover plate is arranged at the top of the centrifugal machine main body, and a microwave device is mounted on one side of the surface of the furnace main body. The dismounting plate is arranged in the center of the surface of the cover plate, a plurality of ultrasonic vibration rods are arranged in the dismounting plate, a second connecting pipe is connected between the furnace main body and the mixing box, a first connecting pipe is connected between the mixing box and the centrifugal machine main body, a feeding pipe is arranged on the surface of the dismounting plate, and a discharging pipe is arranged on the surface of the dismounting plate. The motor is mounted at one end of the furnace main body, and an auger main body is arranged in the furnace main body. The wave-induced synergistic carbonized sludge treatment device provided by the invention adapts to different sludge pyrolysis requirements, waste heat of pyrolysis gas and solid products generated by pyrolysis is recovered for a preheating stage, the energy utilization rate is increased, and the energy consumption is reduced.

Description

Technical Field

[0001] The present invention relates to the field of sludge treatment, and in particular to a wave-induced coordinated carbonization sludge treatment device. Background Art

[0002] With the increasing requirements for environmental protection, sludge treatment has become an important issue. Traditional sludge treatment technologies, such as landfill, drying, incineration, land reuse, etc., are difficult to balance environmental protection, resource utilization and cost. Although sludge anaerobic digestion to produce gas has prospects, the digestion process that directly uses dewatered sludge as raw material has problems such as low gas production rate and long residence time. Sludge hydrothermal treatment technology can improve the biochemical properties of sludge, achieve stabilization, resource utilization and reduction, and has broad application prospects when combined with anaerobic digestion. It is divided into thermal hydrolysis and hydrothermal oxidation. Related devices include tubular, tower, kettle, etc., and operating modes include intermittent, semi-batch and continuous. Microwave pyrolysis treatment of sludge has the advantages of shortening heat treatment time, reducing energy consumption, recovering oil resources, and reducing secondary pollution, and has gradually attracted attention in the field of sludge treatment.

[0003] Problems with existing sludge hydrothermal treatment devices: intermittent hydrothermal treatment is complex to operate, inefficient, and has poor stability; continuous devices have poor mud-water separation effects, large solid particles in the effluent, affecting subsequent processes, pipelines, and equipment, and have high energy consumption.

[0004] Problems with microwave pyrolysis sludge treatment: In related microwave pyrolysis sludge treatment methods, the sludge water evaporates slowly, affecting the working efficiency of the equipment. After pyrolysis and drying, the sludge easily agglomerates into blocks, the internal heat is difficult to dissipate, and the heat conversion efficiency is reduced.

[0005] Problems with microwave pyrolysis furnaces: Traditional microwave pyrolysis furnaces cannot avoid microwave leakage when materials are fed in and out, which is harmful to the human body. Intermittent operation is mostly adopted in industry, which is complicated and cumbersome to operate, with large heat dissipation losses, making it difficult to promote and apply them on a large scale in industry.

[0006] Therefore, it is necessary to provide a wave-induced synergistic carbonization sludge treatment device to solve the above technical problems. Summary of the Invention

[0007] The present invention provides a wave-induced collaborative carbonization sludge treatment device, which solves the problems in hydrothermal treatment, such as the complexity, low efficiency and poor stability of intermittent operation, poor continuous mud-water separation, affecting subsequent processes and high energy consumption, slow evaporation of water and easy agglomeration during microwave pyrolysis of sludge, resulting in difficulty in heat dissipation and low energy conversion efficiency, and the risk of microwave leakage during the inlet and outlet of traditional microwave pyrolysis furnaces. Most of the operations are intermittent, which is cumbersome to operate and has large heat dissipation losses, making it unfavorable for industrial promotion.

[0008] In order to solve the above technical problems, the present invention provides a wave-induced synergistic carbonization sludge treatment device, comprising:

[0009] A furnace body, a mixing box is provided above the furnace body, a centrifuge body is provided above the mixing box, a cover is provided on the top of the centrifuge body, and a microwave device is installed on one side of the surface of the furnace body;

[0010] a disassembly plate, the disassembly plate being arranged at the center of the cover plate surface, a plurality of ultrasonic vibrating rods being arranged inside the disassembly plate, a second connecting pipe being connected between the furnace body and the mixing box, a first connecting pipe being connected between the mixing box and the centrifuge body, and a feeding pipe being arranged on the surface of the disassembly plate;

[0011] A motor is installed at one end of the furnace body. An auger body is provided inside the furnace body. Mounting heads are installed on the surfaces of the furnace body and the mixing box. A conveying pipe is connected between the two mounting heads.

[0012] Preferably, a fixing assembly is provided between the cover plate and the disassembly plate, the fixing assembly includes a fixing groove, a fixing block is provided inside the fixing groove, one end of the fixing block is connected to the side of the disassembly plate, and a fixing bolt is provided between the fixing block and the cover plate.

[0013] Preferably, a connecting line is connected between the plurality of ultrasonic vibration rods, and one side of the connecting line is connected to an electric wire.

[0014] Preferably, a collecting hopper is provided at one end of the furnace body.

[0015] Preferably, the bottom of the collecting hopper is connected to a discharge head.

[0016] Preferably, brackets are connected to both sides of the bottom of the furnace body.

[0017] Preferably, a stirring device is provided inside the mixing box, and the stirring device includes a rotating rod, a surface of the rotating rod is connected to a plurality of stirring blades, and a top end of the rotating rod is connected to a first rotating wheel.

[0018] Preferably, a motor is provided on one side of the mixing box, one end of the motor output shaft is fixedly connected to the second rotating wheel through a coupling, a belt is connected between the first rotating wheel and the second rotating wheel, a fixing frame is provided on the surface of the motor, and the fixing frame is connected to the mixing box.

[0019] Preferably, a feed assembly is provided on one side of the centrifuge body, and the feed assembly includes a feed hopper, and the top and bottom of the feed hopper are respectively connected to a feed port and a feed pipe.

[0020] Preferably, a connecting bracket is provided between the feed hopper and the centrifuge body.

[0021] Compared with related technologies, the wave-induced synergistic carbonization sludge treatment device provided by the present invention has the following beneficial effects:

[0022] The present invention provides a wave-induced collaborative carbonization sludge treatment device, in which an auger, a motor, a conveying pipe with two mounting heads, a mixing box, a centrifuge body, a cover plate and a disassembly plate with multiple ultrasonic vibrating rods are respectively arranged on the furnace body for coordinated operation. The sludge is first ultrasonically treated to improve the dehydration performance, and then centrifugally dehydrated and preheated and dried before entering the furnace body for pyrolysis. This multi-step treatment method can more effectively reduce the moisture content of the sludge and improve the pyrolysis efficiency. The furnace body adopts a segmented type, and the conventional pyrolysis section and the microwave pyrolysis section can push the material at different speeds, accurately control the pyrolysis time, and adapt to different sludge pyrolysis requirements. The pyrolysis gas and solid product waste heat generated by pyrolysis are recovered for the preheating stage, which improves energy utilization and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of a first embodiment of a wave-induced coordinated carbonization sludge treatment device provided by the present invention;

[0024] Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown;

[0025] Figure 3 for Figure 1 An enlarged schematic diagram of part B is shown;

[0026] Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the interior of the sludge treatment device shown;

[0027] Figure 5 for Figure 1 A schematic diagram of the external three-dimensional structure of the sludge treatment device shown;

[0028] Figure 6 A schematic structural diagram of a second embodiment of a wave-induced coordinated carbonization sludge treatment device provided by the present invention;

[0029] Figure 7 This is a structural schematic diagram of the third embodiment of a wave-induced coordinated carbonization sludge treatment device provided by the present invention.

[0030] Numbers in the figure: 1, furnace body; 2, mixing box; 3, centrifuge body; 4, cover plate; 5, disassembly plate; 6, ultrasonic vibrator; 7, connecting line; 8, electrical wire;

[0031] 9. Fixing assembly; 91. Fixing slot; 92. Fixing block; 93. Fixing bolt;

[0032] 10. Feeding pipe; 11. First connecting pipe; 12. Second connecting pipe; 13. Motor; 14. Auger body; 15. Mounting head; 16. Collection hopper; 17. Discharge head; 18. Bracket; 19. Microwave device;

[0033] 20. Stirring device; 201. Rotating rod; 202. Stirring blade; 203. First rotating wheel; 204. Motor; 205. Second rotating wheel; 206. Belt; 207. Fixed frame;

[0034] 21. Feed assembly; 211. Feed hopper; 212. Feed pipe; 213. Connecting bracket; 214. Feed port. DETAILED DESCRIPTION

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] First embodiment

[0037] Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 ,in, Figure 1 A schematic structural diagram of a first embodiment of a wave-induced coordinated carbonization sludge treatment device provided by the present invention; Figure 2 for Figure 1 An enlarged schematic diagram of part A is shown; Figure 3 for Figure 1 An enlarged schematic diagram of part B is shown; Figure 4 for Figure 1 Schematic diagram of the three-dimensional structure of the interior of the sludge treatment device shown; Figure 5 for Figure 1 A wave-induced synergistic carbonization sludge treatment device comprises:

[0038] A furnace body 1, a mixing box 2 is provided above the furnace body 1, a centrifuge body 3 is provided above the mixing box 2, a cover plate 4 is provided on the top of the centrifuge body 3, and a microwave device 19 is installed on one side of the surface of the furnace body 1;

[0039] A disassembly plate 5 is provided at the center of the surface of the cover plate 4. A plurality of ultrasonic vibrating rods 6 are provided inside the disassembly plate 5. A second connecting pipe 12 is connected between the furnace body 1 and the mixing box 2. A first connecting pipe 11 is connected between the mixing box 2 and the centrifuge body 3. A feeding pipe 10 is provided on the surface of the disassembly plate 5.

[0040] The motor 13 is installed at one end of the furnace body 1. An auger body 14 is provided inside the furnace body 1. Mounting heads 15 are installed on the surfaces of the furnace body 1 and the mixing box 2. A conveying pipe 16 is connected between the two mounting heads 15.

[0041] The auger body 14 can also be configured so that two sections of the auger can run at different speeds simultaneously to control different pyrolysis times.

[0042] A fixing assembly 9 is provided between the cover plate 4 and the disassembly plate 5. The fixing assembly 9 includes a fixing groove 91. A fixing block 92 is provided inside the fixing groove 91. One end of the fixing block 92 is connected to the side of the disassembly plate 5. A fixing bolt 93 is provided between the fixing block 92 and the cover plate 4.

[0043] A connecting line 7 is connected between the plurality of ultrasonic vibration rods 6 , and an electric wire 8 is connected to one side of the connecting line 7 .

[0044] A collecting hopper 16 is provided at one end of the furnace body 1 .

[0045] The bottom of the collecting hopper 16 is connected to a discharge head 17 .

[0046] Brackets 18 are connected to both sides of the bottom of the furnace body 1.

[0047] For more stable operation, the furnace body 1 is constructed from high-temperature and corrosion-resistant special alloy steel, such as steel containing alloying elements like chromium and nickel. Its thickness is designed to be 10-15 mm to ensure sufficient strength and stability in high-temperature pyrolysis environments, effectively resisting thermal stress and chemical corrosion, and extending the equipment's service life. The mixing box 2 and centrifuge body 3 are constructed from high-strength, wear-resistant engineering plastics, such as an alloy of polycarbonate (PC) and acrylonitrile-butadiene-styrene (ABS). This lightweight material facilitates installation and maintenance while also meeting the chemical stability requirements of the sludge treatment process.

[0048] Ultrasonic vibrating rods 6 are made of high-purity titanium alloy, which has excellent ultrasonic conductivity and corrosion resistance. They are 20-30 cm long and 3-5 cm in diameter. Depending on the sludge treatment volume and treatment requirements, 8-12 ultrasonic vibrating rods 6 are evenly distributed within the disassembly plate 5 to ensure uniform and efficient ultrasonic treatment of the sludge, effectively improving sludge dewatering performance.

[0049] The motor 13 uses a high-efficiency and energy-saving variable frequency motor, and its power is determined to be 5-10 kilowatts according to the size and processing capacity of the furnace body 1. The speed can be flexibly adjusted according to actual production needs, and the conveying speed of the auger body 14 can be accurately controlled to meet the material conveying speed requirements of different sludge pyrolysis processes.

[0050] The spiral blades of the auger body 14 are made of wear-resistant, high-strength manganese steel with a thickness of 8-12 mm. The auger diameter is designed to be 30-50 cm, and the pitch is set to 20-40 cm according to the material characteristics and conveying requirements. This ensures that the material is effectively stirred and heated evenly during the sludge propulsion process, improving the pyrolysis efficiency.

[0051] Sludge pretreatment: Sludge containing impurities and a high moisture content enters the centrifuge body 3 through the feed pipe 10. At this point, the power cord 8 is connected, and the multiple ultrasonic vibrating rods 6 begin to operate, emitting high-frequency ultrasonic waves. The ultrasonic waves propagate through the sludge, utilizing their cavitation, mechanical, and thermal effects to disrupt the sludge's colloidal structure, release bound water, and improve its dewatering performance. After a certain period of ultrasonic treatment, the centrifuge body 3 is started, and the sludge undergoes solid-liquid separation under the action of centrifugal force. The separated liquid is discharged through the centrifuge body 3's drainage device, while the preliminarily dehydrated sludge remains within the centrifuge body 3.

[0052] Sludge Transportation and Mixing Preheating: After preliminary dehydration, the sludge enters the mixing tank 2 through the first connecting pipe 11. Although there is no stirring device in the mixing tank 2, the sludge accumulates inside due to its own gravity and the pressure of the pipeline. During this process, the mixing tank 2 can serve as a buffer and temporary storage, ensuring a more stable transportation state for the sludge before entering the furnace body 1. At the same time, the mixing tank 2 can initially preheat the sludge using an external heating device. Utilizing the pyrolysis gas and waste heat from the solid products, the sludge is preheated to a certain temperature, saving energy for the subsequent pyrolysis process and improving pyrolysis efficiency.

[0053] Sludge pyrolysis: The preheated sludge enters the furnace main body 1 through the second connecting pipe 12. Start the motor 13, and the motor 13 drives the auger main body 14 to rotate. The rotation of the auger main body 14 pushes the sludge to move slowly forward in the furnace main body 1. During the advancement process, the sludge first enters the conventional pyrolysis area. Under the action of the conventional heating element, the sludge begins to heat up and undergoes preliminary pyrolysis, and some organic matter begins to decompose. As the sludge continues to advance, after accumulating to a certain extent, the sludge enters the microwave pyrolysis area. At this time, the microwave device 19 is turned on, and the microwave device 19 emits microwaves. The microwaves interact with the polar molecules in the sludge, causing the internal molecules of the sludge to vibrate and rub rapidly, generating heat, and realizing microwave pyrolysis. By controlling the rotation speed of the motor 13, the rotation speed of the auger main body 14 can be adjusted, thereby changing the residence time of the sludge in the conventional pyrolysis section and the microwave pyrolysis section, and accurately controlling the degree and effect of pyrolysis to meet the pyrolysis requirements of sludge of different properties.

[0054] Product collection: After pyrolysis, the sludge is converted into pyrolysis gas and solid products (such as carbonized sludge, etc.). The pyrolysis gas can be collected through a special pipeline collection system for subsequent energy recovery, such as as a heat source in the preheating stage. The solid product, pushed by the auger body 14, continues to move to one end of the furnace body 1 and is collected by the collection hopper 16. The design of the collection hopper 16 helps to collect the solid products in a centralized manner, and then discharge them through the discharge head 17 at the bottom so that the solid products can be further processed or utilized.

[0055] Compared with related technologies, the wave-induced synergistic carbonization sludge treatment device provided by the present invention has the following beneficial effects:

[0056] The present invention provides a wave-induced synergistic carbonization sludge treatment device, in which an auger 14, a motor 13, a conveying pipe 16 with two mounting heads 15, a mixing box 2, a centrifuge body 3, a cover plate 4 and a disassembly plate 5 with multiple ultrasonic vibrating rods 6 are respectively arranged on a furnace main body 1 for coordinated operation. The sludge is first ultrasonically treated to improve the dehydration performance, and then centrifugally dehydrated, preheated and dried before entering the furnace body for pyrolysis. This multi-step treatment method can more effectively reduce the moisture content of the sludge and improve the pyrolysis efficiency. The furnace body adopts a segmented type, and the conventional pyrolysis section and the microwave pyrolysis section can push the material at different speeds, accurately control the pyrolysis time, and adapt to different sludge pyrolysis requirements. The pyrolysis gas and solid product waste heat generated by pyrolysis are recovered for the preheating stage, thereby improving energy utilization and reducing energy consumption.

[0057] Second embodiment

[0058] Please refer to Figure 6 Based on the wave-induced synergistic carbonization sludge treatment device provided in the first embodiment of this application, the second embodiment of this application provides another wave-induced synergistic carbonization sludge treatment device. The second embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0059] Specifically, the difference of the wave-induced co-carbonization sludge treatment device provided in the second embodiment of the present application is that, in a wave-induced co-carbonization sludge treatment device, a stirring device 20 is provided inside the mixing box 2, and the stirring device 20 includes a rotating rod 201, and a plurality of stirring blades 202 are connected to the surface of the rotating rod 201, and a first rotating wheel 203 is connected to the top of the rotating rod 201.

[0060] A motor 204 is provided on one side of the mixing box 2, and one end of the output shaft of the motor 204 is fixedly connected to the second rotating wheel 205 through a coupling. A belt 206 is connected between the first rotating wheel 203 and the second rotating wheel 205. A fixing frame 207 is provided on the surface of the motor 204, and the fixing frame 207 is connected to the mixing box 2.

[0061] One end of the rotating rod 201 passes through the cover plate 4 and extends to the outside of the cover plate 4. The connection between the rotating rod 201 and the cover plate 4 is a bearing connection. The motor 204 is a servo motor that can drive the second rotating wheel 205 to rotate forward and reverse.

[0062] The working principle of the wave-induced coordinated carbonization sludge treatment device provided by the present invention is as follows:

[0063] During use, when the raw materials are transported to the mixing box 2 for preheating after centrifugation, first start the motor 204 to drive the second rotating wheel 205 to rotate. When the second rotating wheel 205 rotates, the first rotating wheel 203 is driven to rotate through the belt 206. When the first rotating wheel 203 rotates, it drives the rotating rod 201 to rotate. When the rotating rod 201 rotates, it drives the stirring blades 202 on the surface to preheat and mix the raw materials inside the mixing box 2.

[0064] Compared with related technologies, the wave-induced synergistic carbonization sludge treatment device provided by the present invention has the following beneficial effects:

[0065] The present invention provides a wave-induced coordinated carbonization sludge treatment device, in which a stirring device 20 is provided inside a mixing box 2 to facilitate preliminary preheating and mixing operations on the raw materials inside the mixing box 2 .

[0066] Third embodiment

[0067] Please refer to Figure 7 Based on the wave-induced synergistic carbonization sludge treatment device provided in the first embodiment of this application, the third embodiment of this application provides another wave-induced synergistic carbonization sludge treatment device. The third embodiment is merely a preferred embodiment of the first embodiment, and the implementation of the third embodiment will not affect the independent implementation of the first embodiment.

[0068] Specifically, the difference of the wave-induced co-carbonization sludge treatment device provided in the third embodiment of the present application is that, in a wave-induced co-carbonization sludge treatment device, a feed assembly 21 is provided on one side of the centrifuge body 3, and the feed assembly 21 includes a feed hopper 211, and the top and bottom of the feed hopper 211 are respectively connected to a feed port 214 and a feed pipe 212.

[0069] The feed hopper 211 can be installed on one side of the centrifuge body 3 by connecting the main bracket 213 .

[0070] A connecting bracket 213 is provided between the feed hopper 211 and the centrifuge body 3 .

[0071] The working principle of the wave-induced coordinated carbonization sludge treatment device provided by the present invention is as follows:

[0072] During use, when adding raw materials to the interior of the centrifuge body 3, the raw materials are first poured into the interior of the feed hopper 211 through the feed port 214. After the raw materials are poured into the interior of the feed hopper 211, they are transported to the interior of the centrifuge body 3 through the feed pipe 212 for centrifugal processing.

[0073] Compared with related technologies, the wave-induced synergistic carbonization sludge treatment device provided by the present invention has the following beneficial effects:

[0074] The present invention provides a wave-induced coordinated carbonization sludge treatment device, in which a feed assembly 21 is provided on one side of a centrifuge body 3 to facilitate the addition of raw materials when the centrifuge body 3 is working.

[0075] 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 wave-induced synergistic carbonization sludge treatment device, characterized in that: include: A furnace body, a mixing box is provided above the furnace body, a centrifuge body is provided above the mixing box, a cover is provided on the top of the centrifuge body, and a microwave device is installed on one side of the surface of the furnace body; a disassembly plate, the disassembly plate being arranged at the center of the cover plate surface, a plurality of ultrasonic vibrating rods being arranged inside the disassembly plate, a second connecting pipe being connected between the furnace body and the mixing box, a first connecting pipe being connected between the mixing box and the centrifuge body, and a feeding pipe being arranged on the surface of the disassembly plate; A motor is installed at one end of the furnace body. An auger body is provided inside the furnace body. Mounting heads are installed on the surfaces of the furnace body and the mixing box. A conveying pipe is connected between the two mounting heads.

2. The wave-induced coordinated carbonization sludge treatment device according to claim 1 is characterized in that: A fixing assembly is provided between the cover plate and the disassembly plate, the fixing assembly includes a fixing groove, a fixing block is provided inside the fixing groove, one end of the fixing block is connected to the side of the disassembly plate, and a fixing bolt is provided between the fixing block and the cover plate.

3. The wave-induced coordinated carbonization sludge treatment device according to claim 1 is characterized in that: A connecting line is connected between the plurality of ultrasonic vibration rods, and one side of the connecting line is connected to an electric wire.

4. The wave-induced coordinated carbonization sludge treatment device according to claim 1 is characterized in that: A collecting hopper is provided at one end of the furnace body.

5. The wave-induced coordinated carbonization sludge treatment device according to claim 4 is characterized in that: The bottom of the collecting hopper is connected with a discharge head.

6. The wave-induced coordinated carbonization sludge treatment device according to claim 1 is characterized in that: Both sides of the bottom of the furnace body are connected with brackets.

7. The wave-induced coordinated carbonization sludge treatment device according to claim 1 is characterized in that: A stirring device is provided inside the mixing box. The stirring device includes a rotating rod. A surface of the rotating rod is connected to a plurality of stirring blades. The top end of the rotating rod is connected to a first rotating wheel.

8. The wave-induced coordinated carbonization sludge treatment device according to claim 7, characterized in that: A motor is provided on one side of the mixing box, one end of the motor output shaft is fixedly connected to the second rotating wheel through a coupling, a belt is connected between the first rotating wheel and the second rotating wheel, a fixing frame is provided on the surface of the motor, and the fixing frame is connected to the mixing box.

9. The wave-induced coordinated carbonization sludge treatment device according to claim 1, characterized in that: A feed assembly is provided on one side of the centrifuge body. The feed assembly includes a feed hopper. The top and bottom of the feed hopper are respectively connected with a feed port and a feed pipe.

10. The wave-induced coordinated carbonization sludge treatment device according to claim 9, characterized in that: A connecting bracket is provided between the feed hopper and the centrifuge body.

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