Low-carbon resourceful treatment device for sludge

Abstract

The utility model discloses a sludge low-carbon resourceful treatment device which comprises a reactor, an air inlet pipe is arranged on the side face of the upper portion of the reactor, the air inlet end of the air inlet pipe is connected with a pressurized air supply mechanism, an exhaust chamber is arranged on the lower portion of an inner cavity of the reactor, and an exhaust pipe is arranged on the side face of the exhaust chamber. The problems that in the treatment process of an existing sludge low-carbon resourceful treatment device, internal heat and moisture distribution is not uniform, so that raw material decomposition is slowed down, and the sludge resourceful progress is affected are solved.

Description

Technical Field

[0001] The utility model relates to the field of sludge treatment devices, in particular to a sludge low-carbon resource treatment device. Background Art

[0002] Composting is an effective way to achieve low-carbon reduction, harmlessness and resource utilization of organic solid waste, and is widely used in the treatment of solid waste. Aerobic composting refers to the process in which microorganisms decompose organic solid waste to complete their own metabolism under the condition of sufficient oxygen supply, release a large amount of heat and stabilize the compost raw materials to produce organic fertilizer. The resulting compost product is rich in stable carbon components and nutrients such as nitrogen and phosphorus. The application of compost land use and seedling substrate is a beneficial way to low-carbon resource utilization of organic waste.

[0003] During refined production, sludge resource utilization is usually carried out in a reactor. The reaction process relies on ventilation to maintain an aerobic state in the composting device. In conventional sludge resource utilization devices, the ventilation direction is from the bottom of the sludge resource utilization device to the top. However, a large amount of heat is generated during the decomposition of sludge, which will be transferred to the top of the sludge resource utilization device, and the water vapor generated by the decomposition of organic matter will also move toward the top of the sludge resource utilization device along the direction of the airflow, which will cause the top temperature of the device to be too high and the moisture content to be too high. The bottom of the sludge resource utilization device is usually introduced with dry air at room temperature, which makes the bottom temperature of the device too low and the material very dry, resulting in uneven distribution of temperature and moisture inside the device, inhibiting the activity of microorganisms in the device, slowing down the decomposition of raw materials, and affecting the progress of sludge resource utilization. Turning the compost can alleviate the impact caused by uneven distribution of moisture and heat to a certain extent, making the raw materials in the sludge resource utilization device more uniform. However, the automatic compost turning in the sludge resource utilization device usually consumes a lot of electricity, and the compost turning device has a complex structure, and the manufacturing and operating costs are high.

[0004] A Chinese patent document with publication number CN108911802B discloses an organic waste resource recovery device including a manual stirring device, which mixes raw materials evenly by manually driving stirring blades, and is used for small-scale kitchen waste composting treatment.

[0005] Chinese patent document with publication number CN218710063U discloses a container-type aerobic organic waste resource recovery device equipped with an electric stirring plate. The water introduced into the device is evenly distributed through mixing by the stirring plate, thereby increasing the diffusion rate of the water.

[0006] However, the above patent documents do not solve the problem of uneven distribution of heat and water in the reactor during the stirring interval. In addition, manual stirring or electric stirring shaft stirring is required, which is time-consuming and energy-intensive, and the system is relatively complicated.

[0007] The technology for recycling sludge in composting devices is relatively mature, but there is a lack of devices that can achieve uniform distribution of heat and moisture inside the device through a simple device structure and operation method and do not rely on a large amount of manpower and energy consumption.

[0008] Based on the characteristics that water vapor and heat tend to transfer to the top in the sludge resource utilization device, the existing sludge resource utilization device is improved. Utility Model Content

[0009] The utility model aims to provide a low-carbon resource processing device for sludge, so as to solve the problem that the internal heat and water distribution of the existing low-carbon resource processing device during the processing process is uneven, which leads to slow decomposition of raw materials and affects the progress of sludge resource utilization.

[0010] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0011] A low-carbon resource processing device for sludge includes a reactor, wherein an air inlet pipe is provided on the side of the upper part of the reactor, the air inlet end of the air inlet pipe is connected to a pressurized air supply mechanism, the lower part of the reactor inner cavity is an exhaust chamber, and an exhaust pipe is provided on the side of the exhaust chamber.

[0012] By ventilating the reactor from the top to the bottom, the gas flow can be directed in the opposite direction to the transfer direction of heat and water vapor, thereby maintaining a uniform distribution of temperature and moisture content in the device. This eliminates the need for manual turning of the pile or mechanical turning of the pile by a turning device to achieve uniform water and heat distribution of the sludge raw material. The device has a simple structure and can avoid energy consumption, and there is no phenomenon of uneven moisture content and temperature distribution during the turning interval.

[0013] As a further preferred embodiment of the present invention, the outside of the reactor is wrapped with a thermal insulation layer.

[0014] The insulation layer material is preferably polyurethane, glass fiber, etc., and the thickness is preferably 5-10 cm.

[0015] As a further preferred embodiment of the present invention, an airtight sealing cover is hinged on the top of the reactor, and an O-shaped rubber sealing ring is provided at the connection between the airtight sealing cover and the reactor.

[0016] The sealing ring is used to seal the reactor cylinder to maintain the air tightness of the device and prevent the gas introduced into the top of the composting device from escaping.

[0017] As a further preferred embodiment of the present invention, the top end of the airtight sealing cover is wrapped with thermal insulation cotton.

[0018] Good thermal insulation effect.

[0019] As a further preference of the utility model, the air inlet pipe is arranged at the air inlet interface on the upper side of the reactor, the air inlet interface is connected to the air inlet pipe by a quick plug, and an O-shaped rubber sealing ring is provided at the connection between the air inlet interface and the air inlet pipe.

[0020] The connection structure is simple and has good air tightness.

[0021] As a further preferred embodiment of the present invention, the pressurized air supply mechanism is an air pump, and the air outlet of the air pump is connected to the air inlet of the air inlet pipe through a pipeline.

[0022] Air is drawn into the reactor cavity by an air pump.

[0023] As a further preference of the utility model, reactor environmental factor detection modules are provided at the upper, middle and lower parts of the reactor inner cavity, and the sensor probes of the reactor environmental factor detection modules are all arranged toward the center of the reactor.

[0024] The sensor probes of the environmental factor detection module are all arranged toward the center of the reactor to ensure contact with the sludge raw material during use, so that various data of the sludge raw material in the reactor can be monitored in real time.

[0025] The so-called data monitoring includes temperature data, moisture content data and oxygen content data. Through the environmental factor detection modules in the upper, middle and lower parts of the reactor, the sludge maturity state can be grasped in real time and whether the water and heat inside the device are uniform can be judged, so as to effectively produce homogeneous resource products.

[0026] As a further preferred embodiment of the present invention, a perforated plate is provided at the lower portion of the reactor cavity, the perforated plate is fixedly connected to the inner wall of the reactor, the exhaust chamber is surrounded by the perforated plate and the inner wall of the reactor, a support shaft is provided at the bottom of the perforated plate, and the bottom of the support shaft is fixedly connected to the bottom of the reactor cavity.

[0027] The hole shape of the perforated plate is preferably circular and hexagonal, the hole area is preferably 30% to 70% of the total area of ​​the perforated plate, and the hole diameter is preferably 0.3 to 2 cm.

[0028] As a further preference of the present utility model, the exhaust pipe is arranged at the exhaust interface on the lower side of the reactor, the exhaust interface is connected to the exhaust pipe through a quick plug, an O-shaped rubber sealing ring is provided at the junction of the exhaust interface and the exhaust pipe, the exhaust end of the exhaust pipe is connected to a waste heat utilization coil, the waste heat utilization coil is coiled on the outside of the inlet pipe, the exhaust end of the waste heat utilization coil is connected to the exhaust gas treatment device, and the exhaust gas treatment device is a combined gas washing bottle.

[0029] The connection structure between the exhaust interface and the exhaust pipe is simple and has good air tightness. The waste heat utilization coil is set to recycle the waste heat. The waste heat generated by the decomposition of the sludge raw materials in the exhaust gas is reused to preheat the air in the intake room, saving energy and efficiently utilizing the waste heat. The combined scrubbing bottle is filled with scrubbing reagents, and the scrubbing reagents are preferably water, soda lime and low-concentration clarified lime water. Water is used to absorb ammonia generated in the process of sludge resource utilization, soda lime is used to absorb carbon dioxide and volatile organic acids, and low-concentration clarified lime water is used as an indicator to reflect the scrubbing effect.

[0030] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0031] 1. Ventilation from the top of the reactor to its bottom can make the gas flow in the opposite direction of the heat and water vapor transfer direction, so as to maintain the uniform distribution of temperature and moisture content in the device. In this way, there is no need for manual turning or mechanical turning of the pile by a turning device to achieve the uniformity of water and heat of the sludge raw material. The device has a simple structure and can avoid energy consumption, and there is no phenomenon of uneven distribution of moisture content and temperature during the turning interval.

[0032] 2. The sealing ring is used to seal the reactor cylinder to maintain the air tightness of the device and prevent the gas introduced into the top of the composting device from escaping.

[0033] 3. The sensor probes of the environmental factor detection module are all arranged toward the center of the reactor to ensure contact with the sludge raw material during use, so that various data of the sludge raw material in the reactor can be monitored in real time.

[0034] 4. The so-called data monitoring includes temperature data, moisture content data and oxygen content data. Through the environmental factor detection modules in the upper, middle and lower parts of the reactor, the sludge maturity state can be grasped in real time and whether the water and heat inside the device are uniform can be judged, so as to effectively produce homogeneous resource products.

[0035] 5. The connection structure between the exhaust interface and the exhaust pipe is simple and has good air tightness. The waste heat utilization coil is set to recycle the waste heat. The waste heat generated by the decomposition of the sludge raw materials in the exhaust gas is reused to preheat the air in the intake room, saving energy and efficiently utilizing the waste heat. The combined scrubbing bottle is filled with scrubbing reagents, and the scrubbing reagents are preferably water, soda lime and low-concentration clarified lime water. Water is used to absorb ammonia generated in the process of sludge resource utilization, soda lime is used to absorb carbon dioxide and volatile organic acids, and low-concentration clarified lime water is used as an indicator to reflect the scrubbing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present invention clearer, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0038] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, or the positions or positional relationships commonly understood by those skilled in the art, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0042] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Specific embodiments

[0043] Figure 1 A low-carbon resource processing device for sludge is shown, including a reactor 1, an air inlet pipe 2 is provided on the side of the upper part of the reactor 1, the air inlet end of the air inlet pipe 2 is connected to a pressurized air supply mechanism 3, the lower part of the inner cavity of the reactor 1 is an exhaust chamber 11, and an exhaust pipe 4 is provided on the side of the exhaust chamber 11.

[0044] By ventilating the reactor from the top to the bottom, the gas flow can be directed in the opposite direction to the transfer direction of heat and water vapor, thereby maintaining a uniform distribution of temperature and moisture content in the device. This eliminates the need for manual turning of the pile or mechanical turning of the pile by a turning device to achieve uniform water and heat distribution of the sludge raw material. The device has a simple structure and can avoid energy consumption, and there is no phenomenon of uneven moisture content and temperature distribution during the turning interval. Specific embodiments

[0045] This embodiment further illustrates the reactor 1 on the basis of the specific embodiment 1, and the reactor 1 is wrapped with a heat-insulating layer on the outside.

[0046] The insulation layer material is preferably polyurethane, glass fiber, etc., and the thickness is preferably 5-10 cm. Specific embodiments

[0047] This embodiment further illustrates the reactor 1 on the basis of the specific embodiment 1. The top of the reactor 1 is hinged with an airtight sealing cover 5, and an O-shaped rubber sealing ring is provided at the connection between the airtight sealing cover 5 and the reactor 1.

[0048] The sealing ring is used to seal the reactor cylinder to maintain the air tightness of the device and prevent the gas introduced into the top of the composting device from escaping. Specific embodiments

[0049] This embodiment further illustrates the airtight sealing cover 5 on the basis of the specific embodiment 3, and the top of the airtight sealing cover 5 is wrapped with heat-insulating cotton.

[0050] Good thermal insulation effect. Specific embodiments

[0051] This embodiment further illustrates the air inlet pipe 2 based on the specific embodiment 1. The air inlet pipe 2 is arranged at the air inlet interface on the upper side of the reactor 1. The air inlet interface is connected to the air inlet pipe 2 through a quick plug. An O-ring is provided at the junction of the air inlet interface and the air inlet pipe 2.

[0052] The connection structure between the air intake interface and the air intake pipe is simple and has good air tightness. Specific embodiments

[0053] This embodiment further illustrates the pressurized air supply mechanism 3 on the basis of the specific embodiment 1. The pressurized air supply mechanism 3 is an air pump, and the air outlet of the air pump is connected to the air inlet of the air inlet pipe 2 through a pipeline.

[0054] Air is drawn into the reactor cavity by an air pump. Specific embodiments

[0055] This embodiment further illustrates the reactor 1 on the basis of the specific embodiment 1. The upper, middle and lower parts of the inner cavity of the reactor 1 are provided with a reactor environmental factor detection module 6, and the sensor probes of the reactor environmental factor detection module 6 are all arranged toward the center of the reactor 1.

[0056] The sensor probes of the environmental factor detection module are all arranged toward the center of the reactor to ensure contact with the sludge raw material during use, so that various data of the sludge raw material in the reactor can be monitored in real time.

[0057] The so-called data monitoring includes temperature data, moisture content data and oxygen content data. Through the environmental factor detection modules in the upper, middle and lower parts of the reactor, the sludge maturity state can be grasped in real time and whether the water and heat inside the device are uniform can be judged, so as to effectively produce homogeneous resource products. Specific embodiments

[0058] This embodiment further illustrates the reactor 1 on the basis of the specific embodiment 1. A perforated plate 7 is provided at the lower part of the inner cavity of the reactor 1. The perforated plate 7 is fixedly connected to the inner wall of the reactor 1. The exhaust chamber 11 is surrounded by the perforated plate 7 and the inner wall of the reactor 1. A support shaft 8 is provided at the bottom of the perforated plate 7. The bottom of the support shaft 8 is fixedly connected to the bottom of the inner cavity of the reactor 1.

[0059] The hole shape of the perforated plate is preferably circular and hexagonal, the hole area is preferably 30% to 70% of the total area of ​​the perforated plate, and the hole diameter is preferably 0.3 to 2 cm. Specific embodiments

[0060] This embodiment further illustrates the exhaust pipe 4 on the basis of the specific embodiment 1. The exhaust pipe 4 is arranged at the exhaust interface on the lower side of the reactor 1. The exhaust interface is connected to the exhaust pipe 4 through a quick plug. An O-shaped rubber sealing ring is provided at the junction of the exhaust interface and the exhaust pipe 4. The exhaust end of the exhaust pipe 4 is connected to a waste heat utilization coil. The waste heat utilization coil is coiled on the outside of the inlet pipe 2. The exhaust end of the waste heat utilization coil is connected to the exhaust gas treatment device, and the exhaust gas treatment device is a combined gas washing bottle.

[0061] The connection structure between the exhaust interface and the exhaust pipe is simple and has good air tightness. The waste heat utilization coil is set to recycle the waste heat. The waste heat generated by the decomposition of the sludge raw materials in the exhaust gas is reused to preheat the air in the intake room, saving energy and efficiently utilizing the waste heat. The combined scrubbing bottle is filled with scrubbing reagents, and the scrubbing reagents are preferably water, soda lime and low-concentration clarified lime water. Water is used to absorb ammonia generated in the process of sludge resource utilization, soda lime is used to absorb carbon dioxide and volatile organic acids, and low-concentration clarified lime water is used as an indicator to reflect the scrubbing effect.

[0062] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A low-carbon resource processing device for sludge, comprising a reactor (1), characterized in that: An air inlet pipe (2) is provided on the side of the upper part of the reactor (1), and the air inlet end of the air inlet pipe (2) is connected to a pressurized air supply mechanism (3). The lower part of the inner cavity of the reactor (1) is an exhaust chamber (11), and an exhaust pipe (4) is provided on the side of the exhaust chamber (11).

2. The low-carbon resource processing device for sludge according to claim 1 is characterized in that: The reactor (1) is wrapped with a thermal insulation layer on the outside.

3. The low-carbon resource processing device for sludge according to claim 1 is characterized in that: An airtight sealing cover (5) is hingedly connected to the top of the reactor (1), and an O-shaped rubber sealing ring is provided at the junction of the airtight sealing cover (5) and the reactor (1).

4. The low-carbon resource processing device for sludge according to claim 3 is characterized in that: The top end of the airtight sealing cover (5) is wrapped with thermal insulation cotton.

5. The low-carbon resource processing device for sludge according to claim 1 is characterized in that: The air inlet pipe (2) is arranged at the air inlet interface on the upper side of the reactor (1), the air inlet interface is connected to the air inlet pipe (2) by means of a quick connector, and an O-shaped rubber sealing ring is provided at the junction of the air inlet interface and the air inlet pipe (2).

6. The low-carbon resource processing device for sludge according to claim 1 is characterized by: The pressurized air supply mechanism (3) is an air pump, and the air outlet of the air pump is connected to the air inlet of the air inlet pipe (2) through a pipeline.

7. The low-carbon resource processing device for sludge according to claim 1 is characterized by: Reactor environmental factor detection modules (6) are provided at the upper part, the middle part and the lower part of the inner cavity of the reactor (1), and the sensor probes of the reactor environmental factor detection modules (6) are all arranged toward the center of the reactor (1).

8. The low-carbon resource processing device for sludge according to claim 1 is characterized by: A perforated plate (7) is provided at the lower part of the inner cavity of the reactor (1), and the perforated plate (7) is fixedly connected to the inner wall of the reactor (1). The exhaust chamber (11) is formed by the perforated plate (7) and the inner wall of the reactor (1). A support shaft (8) is provided at the bottom of the perforated plate (7), and the bottom of the support shaft (8) is fixedly connected to the bottom of the inner cavity of the reactor (1).

9. The low-carbon resource processing device for sludge according to claim 1 is characterized by: The exhaust pipe (4) is arranged at an exhaust interface on the lower side of the reactor (1); the exhaust interface is connected to the exhaust pipe (4) by a quick connector; an O-shaped rubber sealing ring is provided at the junction of the exhaust interface and the exhaust pipe (4); the exhaust end of the exhaust pipe (4) is connected to a waste heat utilization coil; the waste heat utilization coil is coiled on the outside of the intake pipe (2); the exhaust end of the waste heat utilization coil is connected to an exhaust gas treatment device; and the exhaust gas treatment device is a combined gas washing bottle.

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