Sludge high-temperature aerobic fermentation composite disposal equipment

Abstract

The utility model belongs to the city waste management technical field, concretely speaking it is a kind of sludge high temperature aerobic fermentation composite disposal equipment, including warehouse body, the warehouse body roof is rotationally installed with rotating rod, is installed with spiral blade on the rotating rod, the output shaft of stepping motor is fixedly connected with rotating rod, is installed with cylinder on multiple fixed rods, the cylinder top side is installed with guide plate, is installed with guide block on the warehouse body bottom plate, through rotating rod drive spiral blade rotation, mixed material slides along guide block and falls to bottom end, and spiral blade will push mixed material at bottom end along cylinder upwards, when mixed material moves to above cylinder, mixed material will be scattered along guide plate obliquely downwards, in this process, the mixed material that scatters will contact with oxygen, so that mixed material is in aerobic environment, this structure avoids that mixed material is short of ventilation, is favorable to improve the ventilation effect of mixed material, is beneficial to improve fermentation effect.

Description

Technical Field

[0001] This utility model relates to the field of urban waste treatment technology, specifically a high-temperature aerobic fermentation composite treatment device for sludge. Background Technology

[0002] In the process of treating urban sewage sludge, the sludge can be transformed into well-rotted and stable compost or nutrient soil, which is rich in organic matter and nitrogen, phosphorus and potassium. It can be used for landscaping, soil remediation or agriculture. Therefore, it is necessary to use high-temperature aerobic fermentation composite treatment equipment for sludge.

[0003] The high-temperature aerobic fermentation combined treatment equipment for sludge is a complete system that transforms organic sludge into stabilized, harmless organic fertilizer through high-temperature aerobic fermentation technology. This equipment achieves efficient sludge stabilization by controlling temperature, oxygen, humidity, and microbial activity. Aerobic fermentation utilizes aerobic microorganisms to decompose organic matter in the sludge under aerobic conditions, producing carbon dioxide, water, and heat, while simultaneously killing pathogens and weed seeds. High-temperature stage: During fermentation, the heat released by microbial activity raises the pile temperature to 55-70℃ and maintains it for a certain period, achieving sludge sanitation. Maturation and stabilization: In the later stages, through cooling and maturation, the organic matter is transformed into stable humus, forming a fertilizer-like product.

[0004] In existing high-temperature aerobic fermentation combined treatment equipment for sludge, during the process of treating sludge and producing fertilizer, the mixed materials form piles in the silo, which easily leads to accumulation. Insufficient ventilation of the accumulated materials can cause anaerobic fermentation, resulting in odors or temperature runaway, thus affecting the ventilation effect of the mixed materials and the fermentation effect. Therefore, a high-temperature aerobic fermentation combined treatment equipment for sludge is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology and solve the problems existing in the existing technology, this utility model proposes a high-temperature aerobic fermentation composite treatment equipment for sludge.

[0006] The technical solution adopted by this utility model to solve its technical problem is a high-temperature aerobic fermentation composite treatment equipment for sludge, including a silo body. A feed inlet is installed on the top plate of the silo body, and a first cover plate is installed at the feed inlet. A rotating rod is rotatably installed on the top plate of the silo body, and a spiral blade is installed on the rotating rod. A stepper motor is installed on the top plate of the silo body via a base, and the output shaft of the stepper motor is fixedly connected to the rotating rod. Multiple fixed rods are installed on the inner wall of the silo body, and a cylinder is installed on the multiple fixed rods. A guide plate is installed on the top side of the cylinder, and a guide block is installed on the bottom plate of the silo body. A blower is installed on the top plate of the silo body, and a [missing information - likely a device or component] is mounted on the blower. The system includes an air duct, with an aeration pipe connected to the other end. The aeration pipe is fixedly installed on the inner wall of the chamber and has multiple membranes with tiny self-closing holes. A rotating rod drives the spiral blades to rotate, causing the mixture to slide down the guide block to the bottom. The spiral blades push the mixture at the bottom upwards along the cylinder. When the mixture reaches the top of the cylinder, it will fall diagonally downwards along the guide plate. During this process, the falling mixture comes into contact with oxygen, creating an aerobic environment. This structure avoids insufficient ventilation of the mixture, improves the ventilation effect, and enhances the fermentation effect.

[0007] Preferably, the top plate of the silo has placement holes, and a placement rack is installed on the inner wall of the placement holes. Activated carbon blocks are placed in the placement rack. An installation rack is installed on the bottom side of the top plate of the silo, and four sets of UV lamps are installed on the inner wall of the installation rack. The installation rack and placement rack have a grid structure. A second cover plate is installed on the top plate of the silo at the placement rack location. A discharge pipe is installed on the silo, and a first solenoid valve is installed on the discharge pipe. A support platform is installed on the bottom side of the silo, and a discharge chute is opened in the support platform. A control panel and a temperature sensor are installed on the side wall of the silo. The probe of the temperature sensor is installed on the inner wall of the silo. The chamber is equipped with a heating plate, and a water inlet pipe is installed on the side wall of the chamber. A second solenoid valve is installed on the water inlet pipe. The activated carbon blocks adsorb the odorous gases, and four UV lamps are turned on at the same time. After the UV lamps are turned on, they generate a large amount of ultraviolet light to irradiate the odorous gases in the activated carbon blocks. The odorous gases in the activated carbon blocks are degraded and transformed into low-molecular-weight compounds such as water vapor and carbon dioxide, so that the odorous substances contained in the activated carbon blocks are discharged. The activated carbon blocks are restored to their original activity, realizing the recycling of activated carbon blocks and avoiding the need for periodic replacement, which is beneficial to improving the reuse rate of activated carbon blocks.

[0008] The advantages of this utility model are: 1. This utility model uses a rotating rod to drive the spiral blades to rotate. The mixture slides down the guide block to the bottom, and the spiral blades push the mixture at the bottom upward along the cylinder. When the mixture moves to the top of the cylinder, it will fall obliquely downward along the guide plate. During this process, the fallen mixture will come into contact with oxygen, making the mixture an aerobic environment. This structure avoids insufficient ventilation of the mixture, which is beneficial to improving the ventilation effect of the mixture and thus improving the fermentation effect.

[0009] 2. This invention uses activated carbon blocks to adsorb malodorous gases. Simultaneously, four UV lamps are activated, generating a large amount of ultraviolet light that irradiates the malodorous gases within the activated carbon blocks. The malodorous gases are degraded and transformed into low-molecular-weight compounds such as water vapor and carbon dioxide, allowing the malodorous substances inside the activated carbon blocks to be released. The activated carbon blocks regain their original activity, achieving recycling and avoiding the need for periodic replacement, thus improving their reusability. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a first-person perspective 3D structural diagram; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the warehouse. Figure 3 This is a schematic diagram of the three-dimensional structure of the aeration pipe; Figure 4 This is a schematic diagram of the three-dimensional structure of the activated carbon block; Figure 5 This is a schematic diagram of the three-dimensional structure of the support platform.

[0012] In the diagram: 1. Bin body; 2. First cover plate; 3. Rotating rod; 4. Spiral blade; 5. Stepper motor; 6. Fixing rod; 7. Cylinder; 8. Guide plate; 9. Guide block; 10. Blower; 11. Air guide pipe; 12. Aeration pipe; 13. Membrane; 14. Micro self-closing orifice; 15. Placement rack; 16. Activated carbon block; 17. Mounting rack; 18. UV lamp tube; 19. Second cover plate; 20. Discharge pipe; 21. First solenoid valve; 22. Support platform; 23. Discharge chute; 24. Control panel; 25. Temperature sensor; 26. Water inlet pipe; 27. Second solenoid valve. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0014] Please see Figure 1-3 As shown, a high-temperature aerobic fermentation composite treatment device for sludge includes a silo body 1. A feed inlet is installed on the top plate of the silo body 1, and a first cover plate 2 is installed at the feed inlet. A rotating rod 3 is rotatably mounted on the top plate of the silo body 1, and a spiral blade 4 is mounted on the rotating rod 3. A stepper motor 5 is mounted on the top plate of the silo body 1 via a base, and the output shaft of the stepper motor 5 is fixedly connected to the rotating rod 3. Multiple fixing rods 6 are installed on the inner wall of the silo body 1, and a cylinder 7 is mounted on the multiple fixing rods 6. A guide plate 8 is installed on the top side of the cylinder 7. A guide block 9 is installed on the bottom plate of the silo body 1, and a drum is installed on the top plate of the silo body 1. The blower 10 is equipped with an air guide pipe 11, the other end of which is connected to an aeration pipe 12. The aeration pipe 12 is fixedly installed on the inner wall of the chamber 1, and multiple membranes 13 are installed on the aeration pipe 12. Each membrane 13 has a small self-closing hole 14. During operation, in the existing high-temperature aerobic fermentation compound treatment equipment for sludge, the mixed materials form a pile in the chamber 1 during the process of treating sludge and producing fertilizer. This pile is prone to accumulation. Insufficient ventilation of the accumulated materials can easily lead to anaerobic fermentation, producing odors or temperature runaway, resulting in poor ventilation of the mixed materials. To affect the fermentation effect, sludge and auxiliary materials, including straw, sawdust, and other conditioning agents, are poured into the silo 1 through the feed inlet. Temperature, oxygen, humidity, and material mixing conditions need to be controlled to promote microbial metabolic activity and facilitate fermentation. An appropriate amount of water is poured into the silo 1 through the water inlet pipe 26 to maintain the moisture content of the mixture between 60% and 65%. The temperature sensor 25 (model DS18B20) operates, and the heating plate heats the mixture. The temperature sensor 25 monitors the temperature inside the silo 1 in real time, with the heating period ranging from 0 to 2 degrees Celsius. Day 1: Mesophilic microorganisms dominate, with the temperature rising to 40-50℃; High-temperature period: 3-7 days: Thermophilic microorganisms are active, with the temperature reaching 55-70℃, killing pathogens; Cooling period: The temperature gradually decreases, and the activity of microorganisms weakens; Air is introduced into the air guide pipe 11 through the operation of the blower 10, and then the air enters the aeration pipe 12. The tiny self-closing holes 14 on the membrane 13 will automatically open under air pressure, and the air will enter the chamber 1 for oxygenation; If the air pressure disappears, the tiny self-closing holes 14 of the aeration pipe 12 will automatically close, realizing the oxygenation of the chamber 1; Simultaneously, the stepper motor 5 operates, driving the rotating rod 3 to rotate. The rotating rod 3 drives the spiral blade 4 to rotate, and the mixture slides down to the bottom along the guide block 9. The spiral blade 4 pushes the mixture at the bottom upward along the cylinder 7. When the mixture moves above the cylinder 7, it will fall diagonally downward along the guide plate 8. During this process, the fallen mixture will come into contact with oxygen, making the mixture an aerobic environment. The spiral blade 4 continuously pushes the mixture, achieving uniform mixing. This structure supplies oxygen to the mixture during the mixing process, making the mixture an aerobic environment. Aerobic microorganisms decompose the organic matter in the sludge under aerobic conditions, producing carbon dioxide, water, and heat, while killing pathogens and weed seeds. This structure avoids insufficient ventilation of the mixture, which is beneficial to improving the ventilation effect of the mixture and improving the fermentation effect.

[0015] Please see Figure 4-5 As shown, a placement hole is installed on the top plate of the silo body 1, and a placement rack 15 is installed on the inner wall of the placement hole. Activated carbon blocks 16 are placed inside the placement rack 15. An installation rack 17 is installed on the bottom side of the top plate of the silo body 1, and four sets of UV lamp tubes 18 are installed on the inner wall of the installation rack 17. The installation rack 17 and the placement rack 15 have a grid structure. A second cover plate 19 is installed on the top plate of the silo body 1 at the placement rack 15. A discharge pipe 20 is installed on the silo body 1, and a first solenoid valve 21 is installed on the discharge pipe 20. A support is installed on the bottom side of the silo body 1. A support platform 22 is provided, with a discharge chute 23 inside. A control panel 24 and a temperature sensor 25 are installed on the side wall of the silo body 1. The probe of the temperature sensor 25 is installed on the inner wall of the silo body 1. A heating plate is installed inside the side wall of the silo body 1. A water inlet pipe 26 is installed on the side wall of the silo body 1, and a second solenoid valve 27 is installed on the water inlet pipe 26. During operation, existing high-temperature aerobic fermentation compound treatment equipment for sludge typically uses activated carbon blocks 16 to adsorb the waste produced during the fermentation process in the process of treating sludge and producing fertilizer. The activated carbon blocks 16 can absorb odorous substances, but they need to be replaced regularly, resulting in a low reuse rate. During fermentation, odorous substances are produced, and the activated carbon blocks 16 adsorb these gases. Simultaneously, four UV lamps 18 are turned on. After activation, the UV lamps 18 generate a large amount of ultraviolet light to irradiate the odorous gases inside the activated carbon blocks 16. The UV-C ultraviolet C band generated by the UV lamps 18 reacts with oxygen to generate ozone. Ozone is a strong oxidant that permanently oxidizes and decomposes molecules such as alcohols, esters, aldehydes, and benzenes in the odor into harmless compounds such as water vapor and carbon dioxide. Therefore, the odorous gases in the activated carbon blocks 16 are degraded and transformed into low-molecular-weight compounds such as water vapor and carbon dioxide, allowing the odorous substances contained inside the activated carbon blocks 16 to be released. The activated carbon blocks 16 regain their original activity, achieving recycling of the activated carbon blocks 16 and avoiding regular replacement, thus improving their reuse rate.

[0016] Working principle: In existing high-temperature aerobic fermentation combined treatment equipment for sludge, during the process of treating sludge and producing fertilizer, the mixed materials form a pile in the silo 1, which is prone to accumulation. Insufficient ventilation of the accumulated materials can easily lead to anaerobic fermentation, producing odors or temperature runaway, resulting in poor ventilation of the mixed materials and affecting the fermentation effect. By pouring sludge and auxiliary materials, including straw, sawdust, and other conditioners, into the silo 1 through the inlet, it is necessary to control conditions such as temperature, oxygen, humidity, and material mixing to promote microbial metabolic activity and enable fermentation of the mixed materials. This is achieved through the inlet pipe 26. Pour an appropriate amount of water into chamber 1 to control the moisture content of the mixture between 60% and 65%. Temperature sensor 25 (model DS18B20) operates, heating the mixture. Temperature sensor 25 monitors the temperature inside chamber 1 in real time. The heating period is 0-2 days: mesophilic microorganisms dominate, temperature rises to 40-50℃; the high-temperature period is 3-7 days: thermophilic microorganisms are active, temperature reaches 55-70℃, killing pathogens; the cooling period: temperature gradually decreases, microbial activity weakens; air is introduced into the air duct 11 by blower 10. Afterwards, air enters the aeration pipe 12, and the tiny self-closing holes 14 on the diaphragm 13 automatically open under air pressure, allowing air to enter the chamber 1 for oxygenation. If the air pressure disappears, the tiny self-closing holes 14 in the aeration pipe 12 will automatically close, thus achieving oxygenation into the chamber 1. Simultaneously, the stepper motor 5 operates, driving the rotating rod 3 to rotate, which in turn drives the spiral blades 4 to rotate. The mixture slides down to the bottom along the guide block 9, and the spiral blades 4 push the mixture at the bottom upward along the cylinder 7. When the mixture moves above the cylinder 7, it will move along the guide plate. 8. The mixture is scattered downwards at an angle. During this process, the scattered mixture comes into contact with oxygen, making the mixture an aerobic environment. The spiral blades 4 continuously push the mixture, achieving uniform mixing. This structure supplies oxygen to the mixture during the mixing process, making the mixture an aerobic environment. Aerobic microorganisms decompose the organic matter in the sludge under aerobic conditions, producing carbon dioxide, water, and heat, while killing pathogens and weed seeds. This structure avoids insufficient ventilation of the mixture, which is beneficial to improving the ventilation effect of the mixture and improving the fermentation effect.Existing high-temperature aerobic fermentation combined treatment equipment for sludge typically uses activated carbon blocks 16 to adsorb odorous substances produced during fermentation in the process of treating sludge and producing fertilizer. However, the activated carbon blocks 16 need to be replaced regularly, resulting in a low reuse rate. In this alternative method, the activated carbon blocks 16 adsorb the odorous gases produced during fermentation, while four UV lamps 18 are turned on. After activation, the UV lamps 18 generate a large amount of ultraviolet light to irradiate the odorous gases within the activated carbon blocks 16. The UV-C ultraviolet C band generated by the UV lamps 18... It reacts with oxygen to produce ozone, a strong oxidant that permanently oxidizes and decomposes molecules such as alcohols, esters, aldehydes, and benzenes in odors into harmless compounds like water vapor and carbon dioxide. Therefore, the malodorous gases in activated carbon block 16 are degraded and transformed into low-molecular-weight compounds like water vapor and carbon dioxide, allowing the malodorous substances contained within activated carbon block 16 to be released. Activated carbon block 16 regains its original activity, achieving recycling and avoiding periodic replacement, thus improving its reusability.

[0017] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A high-temperature aerobic fermentation combined treatment device for sludge, characterized in that: The container includes a silo body (1), a feed inlet is installed on the top plate of the silo body (1), a first cover plate (2) is installed at the feed inlet, a rotating rod (3) is rotatably installed on the top plate of the silo body (1), a spiral blade (4) is installed on the rotating rod (3), a stepper motor (5) is installed on the top plate of the silo body (1) via a base, the output shaft of the stepper motor (5) is fixedly connected to the rotating rod (3), a plurality of fixed rods (6) are installed on the inner wall of the silo body (1), a cylinder (7) is installed on the plurality of fixed rods (6), a guide plate (8) is installed on the top side of the cylinder (7), a guide block (9) is installed on the bottom plate of the silo body (1), a blower (10) is installed on the top plate of the silo body (1), an air guide pipe (11) is installed on the blower (10), the other end of the air guide pipe (11) is connected to an aeration pipe (12), and the aeration pipe (12) is fixedly installed on the inner wall of the silo body (1).

2. The sludge high-temperature aerobic fermentation combined treatment equipment according to claim 1, characterized in that: Multiple membranes (13) are installed on the aeration pipe (12), and each membrane (13) has a tiny self-closing hole (14).

3. The sludge high-temperature aerobic fermentation combined treatment equipment according to claim 1, characterized in that: The top plate of the chamber (1) is equipped with a placement hole, and a placement rack (15) is installed on the inner wall of the placement hole. Activated carbon blocks (16) are placed in the placement rack (15).

4. The sludge high-temperature aerobic fermentation combined treatment equipment according to claim 1, characterized in that: The top plate of the silo (1) is equipped with an installation frame (17), and four sets of UV lamp tubes (18) are installed on the inner wall of the installation frame (17). The installation frame (17) and the placement frame (15) are of a grid structure. A second cover plate (19) is installed on the top plate of the silo (1) at the placement frame (15).

5. The sludge high-temperature aerobic fermentation combined treatment equipment according to claim 1, characterized in that: A discharge pipe (20) is installed on the silo body (1), a first solenoid valve (21) is installed on the discharge pipe (20), a support platform (22) is installed on the bottom side of the silo body (1), and a discharge trough (23) is opened in the support platform (22).

6. The sludge high-temperature aerobic fermentation combined treatment equipment according to claim 1, characterized in that: A control panel (24) and a temperature sensor (25) are installed on the side wall of the chamber (1). The probe of the temperature sensor (25) is installed on the inner wall of the chamber (1). A heating plate is installed inside the side wall of the chamber (1). A water inlet pipe (26) is installed on the side wall of the chamber (1). A second solenoid valve (27) is installed on the water inlet pipe (26).

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