Mixing equipment for resourceful treatment of multiple organic solid wastes by synergistic aerobic fermentation

Abstract

The utility model discloses a kind of mixing equipment for a variety of organic solid waste synergic aerobic fermentation resourceful treatment, including sludge bin, the top of the sludge bin is provided with gas-collecting hood, the bottom of the sludge bin is provided with spiral output mechanism, the discharge end of the spiral output mechanism is connected with mixer, the feed inlet of the mixer is also provided with fungicide adding mechanism above, double-shaft spiral stirring mechanism is installed in the mixer.The utility model can be after the pretreatment of garden broken material, sludge and solid product after kitchen treatment is transported to the feed inlet of mixer by conveyor, by adjusting the conveying speed of each material, to reach the proportion required by mixed material, fungicide adding mechanism is set near the inlet of mixer simultaneously, after material enters conveyor, material and fungicide are mixed and stirred by double-shaft spiral stirring mechanism, so that various materials are fully mixed.

Description

Technical Field

[0001] This utility model belongs to the technical field of organic solid waste mixing equipment, and in particular relates to a mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes. Background Technology

[0002] Hydropower station projects often generate a variety of organic solid wastes that need to be treated. Among them, garden waste contains rich carbon sources, kitchen waste is rich in protein and polysaccharides, and sludge contains a large amount of organic matter. Using these three as a mixed substrate for composting can not only maintain the balance of the initial carbon-nitrogen ratio of the compost material, but also provide a large amount of easily degradable organic matter for the growth and development of microorganisms in the compost. Kitchen waste and sludge have high water content and lack porosity, which can easily create an oxygen-deficient environment that affects composting. Co-composting with garden waste can not only regulate the water content of the compost pile, but also enhance its aeration, improve its structure and environment. The essence of aerobic composting is that the microorganisms in the compost pile use the organic matter in the pile to metabolize and reproduce, consume the organic matter in the pile and decompose it into water, carbon dioxide and other substances, and generate heat in the process, while gradually humifying the compost pile. Before composting organic solid waste, various materials need to be mixed. Existing mixing methods generally involve directly mixing pre-treated sludge, garden waste, and kitchen waste, which results in poor mixing effects and does not allow for sludge turnover as needed. Utility Model Content

[0003] The purpose of this invention is to overcome the defects of existing technology and provide a mixing device for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes. After the sludge arrives, it is directly poured into the sludge silo. A screw conveyor is installed at the bottom to transport the sludge out. When mixing begins at the start of a fermentation cycle, the sludge is transported to the plant, poured into the sludge silo, and discharged through the bottom screw conveyor. A conveyor then transports the sludge to the mixing system. A gas collection hood is installed above the sludge silo to collect exhaust gases from inside and above the silo, preventing the escape of exhaust gases during sludge unloading and production. Pre-treated garden crushed materials, sludge, and solid products from kitchen waste treatment are conveyed to the mixer inlet via a conveyor. By adjusting the conveying speed of each material, the required mixing ratio is achieved. Simultaneously, a microbial agent addition mechanism is installed near the mixer inlet. After the materials enter the conveyor, the materials and microbial agents are mixed by a twin-shaft screw mixing mechanism to ensure thorough mixing of all materials.

[0004] The objective of this utility model is achieved through the following technical solution: A mixing device for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes includes a sludge silo, a gas collection hood on the top of the sludge silo, a screw output mechanism at the bottom of the sludge silo, a mixer connected to the discharge end of the screw output mechanism, a microbial agent addition mechanism above the feed end of the mixer, and a dual-shaft screw stirring mechanism installed inside the mixer.

[0005] In one embodiment, the discharge end of the screw output mechanism is connected to the mixer via a conveying structure.

[0006] In one embodiment, the conveying structure includes a belt conveyor and a sealing cover, wherein an activated carbon plate is disposed on the inner wall of the sealing cover, and the sealing cover is connected to the housing of the mixer.

[0007] In one embodiment, a scraper is provided at one end of the belt conveyor near the mixer, and the scraper is located below the belt conveyor.

[0008] In one embodiment, the microbial agent addition mechanism includes a microbial agent tank mounted on the sealing cover, the microbial agent tank being located above the feed end of the mixer, and a metering pump being provided at the bottom of the microbial agent tank.

[0009] In one embodiment, the gas collection hood includes a hood body and a telescopic tube, one end of which is connected to the hood body and the other end is connected to a suction mechanism.

[0010] In one embodiment, the gas collection hood further includes a connecting bracket disposed on the top of the hood body, and the connecting bracket is connected to a lifting drive assembly.

[0011] In one embodiment, the lifting drive assembly includes a cylinder and a telescopic rod, one end of which is connected to the cylinder and the other end of which is connected to the connecting bracket. The cylinder is also electrically connected to a PLC numerical control system.

[0012] In one embodiment, an infrared receiver is also provided on the edge of the cover, and an infrared transmitter matching the infrared receiver is provided on the top edge of the sludge silo. The infrared receiver is connected to a signal processor, and the signal processor is electrically connected to a PLC numerical control system.

[0013] In one embodiment, the top of the sludge silo is rotatably connected to a cover plate, and the cover plate has a through hole corresponding to the position of the infrared emitter.

[0014] The beneficial effects of this utility model are as follows: The mixing equipment is equipped with a 30m³ sludge silo to meet the sludge demand within one fermentation cycle. The sludge silo can be a pit type; sludge is poured directly into the silo upon arrival, and a screw conveyor at the bottom transports the sludge out. In actual operation, the sludge discharge time of each wastewater treatment plant is adjusted according to the fermentation cycle. Ideally, sludge should be mixed promptly upon arrival on the day of feeding to reduce odor emissions. At the start of a fermentation cycle, the sludge is transported to the plant, poured into the sludge silo, discharged through the bottom screw conveyor, and then conveyed to the mixing plant by a conveyor. The system includes a gas collection hood installed above the sludge silo to collect exhaust gases from inside and above the silo, preventing the release of exhaust gases during sludge unloading and production. Pre-treated garden crushed materials, sludge, and solid products from kitchen waste treatment are conveyed to the mixer inlet via a conveyor. The conveying speed of each material is adjusted to achieve the required mixing ratio. A microbial agent addition mechanism is installed near the mixer inlet. After entering the conveyor, the materials and microbial agent are mixed by a twin-shaft spiral mixing mechanism to ensure thorough mixing. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings. Wherein: Figure 1 A schematic diagram of the structure of this utility model is shown; Figure 2 A schematic diagram of the belt conveyor of this utility model is shown; Figure 3 A schematic diagram of the structure of the dual-shaft spiral stirring mechanism of this utility model is shown; In the accompanying drawings, the same parts use the same reference numerals. The drawings are not to scale.

[0016] Figure label: 1-Sludge silo, 2-Mixer, 3-Gas collection hood, 4-Screw output mechanism, 5-Belt conveyor, 6-Sealing cover, 7-Activated carbon plate, 8-Scraper, 9-Agent tank, 10-Metering pump, 11-Infrared receiver, 12-Infrared transmitter, 13-Signal processor, 14-Cover plate, 15-Dual-shaft screw mixing mechanism, 31-Cover body, 32-Telescopic pipe, 33-Connecting bracket, 34-Cylinder, 35-Telescopic rod. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0019] 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 to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0020] This utility model provides a mixing device for the synergistic aerobic fermentation and resource utilization treatment of various organic solid wastes, such as... Figure 1 and Figure 3 As shown, it includes a sludge silo 1 and a mixer 2. The top of the sludge silo 1 is equipped with a gas collection hood 3, and the bottom of the sludge silo 1 is equipped with a screw output mechanism 4. The discharge end of the screw output mechanism 4 is connected to the mixer 2 through a conveying structure. A microbial agent addition mechanism is provided above the feed end of the mixer 2. A double-shaft screw stirring mechanism 15 is provided inside the mixer 2. Specifically, such as Figure 2 As shown, the conveying structure includes a belt conveyor 5 and a sealing cover 6. An activated carbon plate 7 is provided on the inner wall of the sealing cover 6. The sealing cover 6 is connected to the housing of the mixer 2. A scraper 8 is rotatably arranged below the belt conveyor 5. The activated carbon plate 7 on the inner wall of the sealing cover 6 helps to prevent the sludge odor from spreading during the conveying process and plays a role in odor adsorption. The scraper 8 is driven by a motor. The motor is connected to a scraper shaft. Scrapers are spaced on the scraper shaft. The scrapers rotate and contact the belt of the belt conveyor 5, which helps to scrape off the sludge adhering to the belt. The sludge silo 1 can be a pit type, and the sludge can be poured directly into the sludge silo 1 after it arrives. Furthermore, such as Figure 2 As shown, the microbial agent addition mechanism includes a microbial agent tank 9 and a metering pump 10. The microbial agent tank 9 is installed on the sealing cover 6 and located above the feed end of the mixer 2. The metering pump 10 is located at the bottom of the microbial agent tank 9. The metering pump 10 is a conventional commercially available product. Any reasonable model, structure and suitable connection and installation method can be selected as needed. The microbial agent tank 9 and the qualified metering pump 10 are conducive to adding microbial agents during mixing and improving the mixing effect. In one embodiment, such as Figure 1As shown, the gas collection hood 3 includes a hood body 31, a telescopic pipe 32, and a connecting bracket 33. One end of the telescopic pipe 32 is connected to the hood body 31, and the other end of the telescopic pipe 32 is connected to the suction mechanism. The connecting bracket 33 is set on the top of the hood body 31 and is connected to a lifting drive assembly. The telescopic pipe 32 is made of conventional telescopic pipe with a certain mechanical strength, and any reasonable material can be selected as needed. The suction mechanism is a conventional commercially available product, and any reasonable model, structure, and connection and installation method can be selected as needed. The suction mechanism can be connected to the waste gas treatment center through a pipeline. The connecting bracket 33 is used to connect the lifting drive assembly, and during use, it is convenient to adjust the distance between the gas collection hood 3 and the top of the sludge silo 1 as needed. Specifically, the lifting drive includes a cylinder 34 and a telescopic rod 35. The cylinder 34 is connected to a PLC numerical control system. One end of the telescopic rod 35 is connected to the cylinder 34, and the other end of the telescopic rod 35 is connected to the connecting bracket 33. The cylinder 34 is a conventional commercially available product, and any reasonable model, structure, and installation method can be selected as needed. The cylinder 34 can be fixed on structures such as factory beams. The telescopic rod 35 adopts a matching structure with the cylinder 34. The PLC numerical control system issues commands to control the telescopic rod 35 to extend and retract, thereby driving the cover 31 connected to the connecting bracket 33 to rise and fall. It should be noted that the sludge silo 1 has a volume of 30m³, which meets the sludge consumption requirements for one fermentation cycle. The sludge silo 1 can be a pit type, where sludge is poured directly into the sludge silo after arrival. A screw conveyor 4 is installed at the bottom to transport the sludge out. In actual operation, the sludge discharge time of each wastewater treatment plant is adjusted according to the fermentation cycle. In principle, the sludge should be mixed promptly upon arrival on the day of feeding to reduce odor escape. When mixing begins at the start of a fermentation cycle, the sludge is transported to the plant and poured into the sludge silo 1. After being discharged through the bottom screw conveyor 4, the sludge is transported to the mixing system by a belt conveyor 5. A gas collection hood 3 is installed on the upper part of the sludge silo 1 to collect exhaust gas inside and above the silo, so as to prevent exhaust gas from escaping during the sludge unloading process and the production process. The pre-treated garden crushed materials, sludge and solid products after kitchen waste treatment are conveyed to the feed inlet of the mixer 2 via belt conveyor 5. By adjusting the conveying speed of each material, the required ratio of the mixed materials is achieved. At the same time, a microbial agent addition mechanism is set near the inlet of the mixer 2. After the material enters the belt conveyor 5, the material and microbial agent are mixed and stirred by the double-shaft spiral stirring mechanism 15 to make the various materials fully mixed. In one embodiment, an infrared receiver 11 is provided on the edge of the cover 31, and an infrared transmitter 12 is provided on the top edge of the sludge silo 1. The infrared receiver 11 is connected to a signal processor 13, and the signal processor 13 is connected to a PLC numerical control system. Both the infrared receiver 11 and the infrared transmitter 12 are conventional commercially available supporting equipment. The infrared transmitter 12 emits infrared rays to the infrared receiver 11. After the infrared receiver 11 senses the infrared signal, it is processed by the signal processor 13 and transmitted to the PLC numerical control system, so that the control center can control the distance between the cover 31 and the support of the sludge silo 1. Furthermore, the top of the sludge silo 1 is provided with a flip-top cover plate 14. The cover plate 14 has a through hole corresponding to the infrared transmitter 12. The cover plate 14 on the top of the sludge silo 1 can be driven to flip by a conventional cylinder. When in use, it can cover the sludge silo 1 to prevent the sludge odor from spreading. The through hole provided on the cover plate 14 helps to ensure that the infrared transmitter 12 can work normally.

[0021] In the description of this utility model, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0022] While specific embodiments of the present invention have been described herein with reference to them, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. Therefore, it should be understood that many modifications can be made to the exemplary embodiments, and other arrangements can be designed without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that different dependent claims and features described herein can be combined in ways different from those described in the original claims. It is also understood that features described in conjunction with individual embodiments can be used in other described embodiments.

Claims

1. A mixing device for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes, characterized in that, The sludge silo includes a sludge hopper, a gas collection hood on top of the sludge hopper, a screw output mechanism at the bottom of the sludge hopper, a mixer at the discharge end of the screw output mechanism, a microbial agent addition mechanism above the feed end of the mixer, and a dual-shaft screw mixing mechanism installed inside the mixer.

2. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 1, characterized in that, The discharge end of the spiral output mechanism is connected to the mixer via a conveying structure.

3. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 2, characterized in that, The conveying structure includes a belt conveyor and a sealing cover. An activated carbon plate is provided on the inner wall of the sealing cover, and the sealing cover is connected to the housing of the mixer.

4. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 3, characterized in that, A scraper is also provided at one end of the belt conveyor near the mixer, and the scraper is located below the belt conveyor.

5. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 3, characterized in that, The microbial agent addition mechanism includes a microbial agent tank installed on the sealing cover, the microbial agent tank being located above the feed end of the mixer, and a metering pump being installed at the bottom of the microbial agent tank.

6. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 1, characterized in that, The gas collection hood includes a hood body and a telescopic tube. One end of the telescopic tube is connected to the hood body, and the other end is connected to a suction mechanism.

7. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 6, characterized in that, The gas collection hood also includes a connecting bracket, which is located on the top of the hood and is connected to a lifting drive assembly.

8. The mixing equipment for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 7, characterized in that, The lifting drive assembly includes a cylinder and a telescopic rod. One end of the telescopic rod is connected to the cylinder, and the other end is connected to the connecting bracket. The cylinder is also electrically connected to a PLC numerical control system.

9. A mixing device for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 8, characterized in that, An infrared receiver is also provided on the edge of the cover, and an infrared transmitter matching the infrared receiver is provided on the top edge of the sludge silo. The infrared receiver is connected to a signal processor, and the signal processor is electrically connected to a PLC numerical control system.

10. A mixing device for the synergistic aerobic fermentation and resource utilization treatment of multiple organic solid wastes according to claim 9, characterized in that, The top of the sludge silo is also rotatably connected to a cover plate, and the cover plate has a through hole corresponding to the position of the infrared emitter.

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