Rotary fermentation bed

Abstract

The utility model relates to a rotary fermentation bed which is characterized in that a feeding auger is arranged at the feeding port end of the rotary fermentation bed, a feeding port of the feeding auger is in an inverted funnel shape, and a first air inlet and a second air inlet are further formed in the feeding port of the feeding auger; the first air inlet and the second air inlet are respectively used for enabling pure air and air sterilization gas to enter the rotary fermentation bed; the rotary fermentation bed comprises a fourth shell which is arranged in a rolling mode, the discharging end of the feeding auger penetrates through the fourth shell and then is inserted into the fourth shell, and the feeding auger is in rotary sealing connection with the fourth shell. The utility model mainly aims to provide the rotary fermentation bed, so that the rotary fermentation bed has an air sterilization function, and the phenomena of infectious microbe pollution and poor fermentation effect in the fermentation process are avoided.

Description

Technical Field

[0001] The utility model relates to a fermentation device, in particular to a rotary fermentation bed. Background Art

[0002] With the development of industry and agriculture and the improvement of human living standards, the amount of organic waste, including livestock and poultry manure, human excrement, organic-rich household garbage, and crop straw, is increasing. Composting has become one of the main methods for treating organic waste. Composting is a biochemical process that utilizes widely existing microorganisms in nature and, through human regulation and control, promotes the conversion of biodegradable organic matter into stable humus.

[0003] Composting can be divided into aerobic composting and anaerobic composting based on the differences in the environment in which composting microorganisms grow. Aerobic composting involves mixing the organic materials to be composted with fillers in a certain proportion and composting them under suitable conditions, allowing the microorganisms to multiply and degrade the organic matter, thereby stabilizing the organic solid waste. Anaerobic composting is the process of anaerobic microorganisms decomposing and transforming the organic matter in the waste under anaerobic conditions. Anaerobic composting is less commonly used because it decomposes organic matter slowly, has low treatment efficiency, easily produces foul odors, and is difficult to control process conditions. Aerobic composting, on the other hand, has a high composting temperature, strong composting microbial activity, rapid organic matter decomposition, and more thorough degradation. Furthermore, during the composting process, the high temperature sterilizes the organic waste, killing pathogens, parasites, and insect eggs, thereby improving the composting performance.

[0004] The existing rotary fermentation bed does not have the function of sterilization and air disinfection, which may cause bacterial contamination and poor fermentation effect during the fermentation process. Utility Model Content

[0005] The main purpose of the utility model is to provide a rotary fermentation bed, which has the function of air sterilization and avoids the contamination of miscellaneous bacteria and the poor fermentation effect during the fermentation process.

[0006] In order to achieve the above-mentioned purpose, the utility model provides a rotary fermentation bed, wherein a feed auger is provided at the feed port end of the rotary fermentation bed, and the feed port of the feed auger is in the shape of an inverted funnel. A first air inlet and a second air inlet are also provided at the feed port of the feed auger, and the first air inlet and the second air inlet are respectively used for pure air and air sterilization gas to enter the rotary fermentation bed; the rotary fermentation bed includes a fourth outer shell that is arranged in a rolling manner, and the discharge end of the feed auger passes through the fourth outer shell and is inserted into the interior of the fourth outer shell, and the feed auger is rotary and sealedly connected to the fourth outer shell.

[0007] Preferably, a plurality of tilting and slanting plates are obliquely provided on the inner wall of the fourth shell, and the tilting and slanting plates are distributed on the inner wall of the fourth shell in a spiral shape.

[0008] Further preferably, a collection trough is provided inside the fourth shell toward the discharge end, a discharge auger is provided in the collection trough, the feed end of the discharge auger is located in the collection trough, and the discharge end of the discharge auger is located outside the fourth shell.

[0009] More preferably, the arrangement density of the tilting and shoveling plates at the aggregate trough is higher than the density of other tilting and shoveling plates.

[0010] More preferably, a plurality of rappers are provided outside the fourth shell.

[0011] The beneficial effects of the utility model are:

[0012] The utility model sets a feeding auger so that the feeding auger is connected to the fourth shell in a rotational sealing manner, and sets the first air inlet and the second air inlet at the feeding port of the feeding auger. In this way, air sterilization of the material is achieved without affecting the rotation of the fourth shell, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0014] Figure 1 It is a structural schematic diagram of the rotary fermentation bed of the present utility model.

[0015] Description of Reference Numerals

[0016] 10. First air lock; 20. Second air lock;

[0017] 100, first stirring and conveying device; 110, first feed port; 120, first discharge port;

[0018] 200, second stirring and conveying device; 210, second feed port; 220, second discharge port;

[0019] 230, discharging auger;

[0020] 310, third feed port; 320, third discharge port;

[0021] 330. Temperature control housing; 340. pH T online monitoring device;

[0022] 400, fourth stirring and conveying device; 410, feeding auger; 411, fourth feeding port;

[0023] 412, first air inlet; 413, second air inlet;

[0024] 420. Turn over the inclined scraper; 430. Vibrator; 440. Aggregate trough. DETAILED DESCRIPTION

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] like Figure 1 As shown, this embodiment provides a rotary fermentation bed, which is applied to a continuous solid fermentation device, wherein the continuous solid fermentation device includes a first stirring and conveying device 100, a second stirring and conveying device 200, a third stirring and conveying device and a fourth stirring and conveying device 400 (i.e., a rotary fermentation bed, the same below), wherein the first discharge port 120 of the first stirring and conveying device 100 is sealedly connected to the second feed port 210 of the second stirring and conveying device 200, the second discharge port 220 of the second stirring and conveying device 200 is sealedly connected to the third feed port 310 of the third stirring and conveying device, the third feed port 310 of the third stirring and conveying device is sealedly connected to the fourth feed port 411 of the fourth stirring and conveying device 400 (i.e., the feed port of the feeding auger 410, the same below), and the fourth discharge port of the fourth stirring and conveying device 400 is sealedly connected to the first stirring and conveying device 100. In this way, the four stirring and conveying devices are connected in sequence, and at the same time, the four stirring and conveying devices are all sealed. A temperature control device is provided on the third stirring and conveying device, which can achieve high-temperature disinfection of the third stirring and conveying device and provide suitable temperature conditions for the strains, thereby reducing the size of the equipment and further reducing the area occupied by the equipment.

[0027] In this embodiment, the first feed port 110 of the first stirring and conveying device 100 is used to add the removed materials, bacteria and liquid. The first feed port 110 and the first discharge port 120 of the first stirring and conveying device 100 are respectively located at both ends of the first stirring and conveying device 100. Specifically, the first stirring and conveying device 100 includes a first screw, a first drive motor, and a first housing. The first screw is coaxially disposed within the first housing. One end of the first drive motor's main shaft passes through a sealed variable frequency feeder and is fixedly connected to the first screw. The sealed variable frequency feeder controls the speed at which the material enters the second stirring and conveying device 200. Both ends of the first housing are sealed. A first feed port 110 is provided at the end of the first housing proximate the first drive motor. The first feed port 110 is funnel-shaped and can remain sealed after feeding. A nozzle is provided at the top of the first feed port 110. The nozzle is connected to a bacterial liquid feed barrel disposed outside the first stirring and conveying device 100. The bacterial liquid is sprayed into the material in the first housing through the nozzle, and then, through stirring and conveying by the screw, enters the second stirring and conveying device 200. In this embodiment, the first stirring and conveying device 100 can be realized by modifying existing auger equipment.

[0028] In this embodiment, the second splint conveying device is modified from a double-screw mixer. Specifically, the second feed port 210 and the second discharge port 220 of the second stirring and conveying device 200 are respectively located at two ends of the second stirring and conveying device 200. The second stirring and conveying device 200 is located below the first stirring and conveying device 100, and the material conveying direction of the second stirring and conveying device 200 is opposite to that of the first stirring and conveying device 100. The first discharge port 120 of the first stirring and conveying device 100 is sealedly connected to the second feed port 210 located above the second stirring and conveying device 200. Preferably, the second stirring and conveying device 200 includes a second screw, a second drive motor, and a second housing. The second screw is coaxially arranged inside the second housing. One end of the main shaft of the second drive motor passes through the side wall of the second housing and is fixedly connected to the second screw. The other end of the second screw is fixedly connected to the discharge auger 230 of the fourth stirring and conveying device 400. The material in the fourth stirring and conveying device 400 is transported to the second stirring and conveying device 200 through the discharge auger 230, completing a stirring cycle. The second housing is provided with a second feed inlet 210, a second discharge outlet 220, and a breathing valve. The second feed inlet 210 is in sealed communication with the first discharge outlet 120 via a first conduit. The first conduit is provided with a first air lock 10, and the breathing valve is fixedly mounted on the top of the second housing. The breathing valve is used to regulate the pressure within the second stirring and conveying device 200. In this embodiment, the first air lock 10 regulates the air flow within the first conduit, thereby adjusting the ventilation volume and preventing external air from entering the first conduit and contaminating the material, thereby achieving further stirring and fermentation of the material within the second stirring and conveying device 200.

[0029] In this embodiment, the third stirring and conveying device is also made by improving the auger. The third feeding port 310 and the third discharging port 320 of the third stirring and conveying device are respectively located at two ends of the third stirring and conveying device. The third stirring and conveying device is located on one side of the second stirring and conveying device 200. The third feeding port 310 of the third stirring and conveying device is sealed and connected to the second discharging port 220 of the second stirring and conveying device 200. A temperature control device is provided on the outside of the third stirring and conveying device. By adjusting the temperature control device, the stirring temperature of the material inside the third stirring and conveying device can be controlled. Specifically, the third stirring and conveying device includes a third screw, a third drive motor, and a third housing. The third screw is coaxially disposed within the third housing. One end of the main shaft of the third drive motor passes through the side wall of the third housing and is fixedly connected to the third screw. The third housing is provided with a third discharge port 320 and a third feed port 310. The third feed port 310 is connected to the second discharge port 220 via a second pipe. The second pipe is provided with a second air shutoff device 20. A pH T online monitoring device 340 for detecting the pH value of the discharged material is provided at the third discharge port 320 of the third housing. The pH T online monitoring device detects the pH value and temperature of the material at the outlet of the third stirring and conveying device. A temperature control device sealing sleeve is provided on the outside of the third housing.

[0030] Specifically, in this embodiment, Figure 1As shown, the temperature control device includes a water pipe arranged along the third shell, a temperature control shell 330, an isolation layer arranged inside the shell, a water tank and a water pump. A heating device is provided in the water tank. The water inlet section of the water pump is connected to the water tank, and the water outlet of the water pump is connected to the water pipe. A sealed space is formed between the temperature control shell 330 and the third shell, and the water pipe is located between the temperature control shell 330 and the third shell. The isolation layer is fixedly attached to the inner wall of the temperature control shell 330, and the isolation layer can expand due to heat. The interior of the isolation layer is filled with sodium bicarbonate powder, and the thermal decomposition temperature of sodium bicarbonate is 50 degrees. In this embodiment, the temperature of the material inside the third stirring and conveying device is controlled by controlling the temperature of the water. In addition, the isolation layer of this embodiment adopts an inflatable isolation layer, but the isolation layer is filled with sodium bicarbonate, rather than the traditional external inflatable type, which can better achieve the thermal insulation effect between the space between the third shell and the temperature control shell 330 and the external space. During use, the insulating layer is fixedly attached to the inner wall of the temperature-controlled housing 330. Heated water is then introduced into the water pipe. This accelerates the decomposition of the sodium bicarbonate in the insulating layer, allowing the insulating layer to quickly fill the space between the third housing and the temperature-controlled housing 330. Simultaneously, the insulating layer is pressed into the gap between the two adjacent coiled water pipes, providing insulation. This effectively reduces heat loss within the water pipes and minimizes temperature loss within the third stirring and conveying device. This minimizes the temperature variation within the third stirring and conveying device, making it negligible and increasing the fermentation speed of the third stirring and conveying device.

[0031] In addition, in order to further reduce the heat loss in the third stirring and conveying device, sealing gaskets are respectively provided at the connection between the two ends of the temperature-controlled shell 330 and the third shell. The structure of the sealing gasket is similar to that of the isolation layer. Similarly, the middle part of the sealing gasket is filled with sodium bicarbonate powder. The pyrolysis temperature of sodium bicarbonate powder is 50 degrees, so that the connection between the two ends of the temperature-controlled shell 330 and the third shell is quickly sealed by the expanded sealing gasket, thereby reducing heat loss.

[0032] In this embodiment, the fourth feed port 411 and the fourth discharge port of the fourth stirring and conveying device 400 are respectively located at the two ends of the fourth stirring and conveying device 400, and the fourth feed port 411 of the fourth stirring and conveying device 400 is sealed and connected with the third discharge port 320 of the third stirring and conveying device. The fourth feed port 411 of the fourth stirring and conveying device 400 is also provided with a first air inlet 412 and a second air inlet 413, and the first air inlet 412 and the second air inlet 413 are respectively used for pure air and air sterilization gas to enter the fourth stirring and conveying device 400. Preferably, the fourth stirring and conveying device 400 includes a feed auger 410 and a fourth shell arranged to be rolled (the fourth shell is in the shape of a drum, and its rolling drive device can refer to the existing rotary fermentation bed device, and its principle is similar, which will not be repeated in this embodiment), that is, a discharge auger 230 and a feed auger 410 are respectively provided at both ends of the fourth frame conveying device. The fourth feed port 411 of the feed auger 410 is sealedly connected to the third discharge port 320 via a third pipe, while the first air inlet 412 and the second air inlet 413 are located at the fourth feed port 411. The discharge end of the feed auger 410 is inserted into the interior of a sealed fourth housing. The inner wall of the fourth housing is provided with an inclined tilting and swishing plate 420 (the tilting and swishing plate 420 can also be configured in an arc shape). The fourth housing continuously rotates, causing the material to continuously move toward the collection trough 440 at one end of the first mixing and conveying device 100. The inlet end of the discharge auger 230 is located within the collection trough 440. In this way, the material in the fourth mixing and conveying device 400 is transported to the second mixing and conveying device 200 via the discharge auger 230 (to facilitate discharge from the discharge auger 230, the tilting and swishing plates 420 are arranged relatively densely at the collection trough 440), completing a material mixing cycle and feeding cycle. Since the shell of the fourth shell is relatively large, a plurality of rappers 430 are provided on the outside of the fourth shell, and the materials adhering to the inner wall of the fourth shell are knocked down by the rappers 430 .

[0033] This embodiment also provides a method for using a continuous solid fermentation device, comprising the following steps:

[0034] S100: Start the first stirring and conveying device 100, the second stirring and conveying device 200, the third stirring and conveying device, and the fourth stirring and conveying device 400. If it is anaerobic fermentation, the temperature of the temperature control device is increased to reach the sterilization temperature. If it is aerobic fermentation, the temperature control device is adjusted according to the material to reach a suitable fermentation temperature, and pure air is input into the fermentation through the first air inlet 412, and air sterilization gas is input into the fermentation through the second air inlet 413.

[0035] S200: adding materials, bacterial strains, bacterial liquid, etc. into the first stirring and conveying device 100 through the first feeding port 110 of the first stirring and conveying device 100, so that the materials and bacterial strains are preliminarily mixed in the first stirring and conveying device 100;

[0036] S300: The material enters the second stirring and conveying device 200 through the first stirring and conveying device 100, so that the material is further mixed in the second stirring and conveying device 200;

[0037] S400: The material enters the third stirring and conveying device through the second stirring and conveying device 200. While the material is further mixed in the third stirring and conveying device, if it is aerobic fermentation, the material temperature is raised to a suitable temperature, and if it is anaerobic fermentation, the third stirring and conveying device is used to achieve a sterilization effect;

[0038] S500: The material enters the fourth stirring and conveying device 400 through the third stirring and conveying device, so that the material is fully mixed in the fourth stirring and conveying device 400, and the material is sent to the second stirring and conveying device 200, so that the material is continuously circulated, stirred and fermented in the four stirring and conveying devices.

[0039] Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

Claims

1. A rotary fermentation bed, characterized in that: A feeding auger is provided at the feed inlet end of the rotary fermentation bed, and the feed inlet of the feeding auger is in the shape of an inverted funnel. A first air inlet and a second air inlet are also provided at the feed inlet of the feeding auger, and the first air inlet and the second air inlet are respectively used for pure air and air sterilization gas to enter the rotary fermentation bed; the rotary fermentation bed includes a fourth outer shell that is arranged in a rolling manner, and the discharge end of the feeding auger passes through the fourth outer shell and is inserted into the interior of the fourth outer shell, and the feeding auger is rotatably sealed and connected to the fourth outer shell.

2. A rotary fermentation bed according to claim 1, characterized in that: A plurality of tilting and sloping plates are obliquely provided on the inner wall of the fourth shell, and the tilting and sloping plates are distributed on the inner wall of the fourth shell in a spiral shape.

3. A rotary fermentation bed according to claim 2, characterized in that: A material collection trough is provided inside the fourth shell toward the discharge end, a discharge auger is provided inside the material collection trough, the feed end of the discharge auger is located inside the material collection trough, and the discharge end of the discharge auger is located outside the fourth shell.

4. A rotary fermentation bed according to claim 3, characterized in that: The arrangement density of the flipping and oblique shoveling plates at the aggregate trough is higher than the density of the other flipping and oblique shoveling plates.

5. A rotary fermentation bed according to any one of claims 1 to 4, characterized in that: A plurality of rappers are provided on the outside of the fourth shell.

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