Corollary equipment for industrial silkworm excrement fermentation

Abstract

The utility model relates to the field of silkworm excrement fertilizers, in particular to corollary equipment for industrial fermentation of silkworm excrement, which comprises a fermentation tank for stacking fermentation of a mixture of rice straws and silkworm excrement; the movable sand throwing platform comprises a machine box, a turning and throwing shaft and a driving part, the machine box stretches across the fermentation tank and can do reciprocating motion in the length direction of the fermentation tank, and the turning and throwing shaft is installed below the machine box through a bearing and arranged in the width direction of the fermentation tank; the driving part is used for driving the case to move and the turning shaft to rotate; a plurality of turning pieces for turning a mixture are arranged on the turning shaft; the spraying assembly is arranged on one side or two sides of the moving direction of the case and is used for spraying water mist to the mixture; the method has the advantages that automatic production of factory-like silkworm excrement organic fertilizer is achieved, cost is reduced, efficiency is improved, the treatment efficiency of the rice straw and the silkworm excrement is further improved, and contribution is made for optimizing the environment and improving the income of farmers.

Description

Technical Field

[0001] The utility model relates to the field of silkworm excrement fertilizers, in particular to a supporting device for industrial silkworm excrement fermentation. Background Art

[0002] Silkworm excrement is the feces discharged by silkworms after eating mulberry leaves, rich in nutrients such as crude protein, crude fat, crude fiber, soluble nitrogen-free substances, ash, chlorophyll, vitamins, pectin, etc., and is an excellent fertilizer and feed for pigs, sheep, and fish. However, silkworm excrement is not suitable for direct use as a fertilizer. Direct application of untreated silkworm excrement may cause the following problems: 1. It may carry harmful microorganisms. Untreated silkworm excrement may contain pathogenic microorganisms or eggs that are unfavorable to plant growth, leading to the spread of diseases; 2. The nutrient release rate is inappropriate. Direct application of untreated silkworm excrement may result in the decomposition rate of organic substances not conforming to the nutrient absorption rhythm of plants, leading to nutrient loss or excessive supply in the short term; 3. It may burn the roots. Fresh silkworm excrement will release heat and may produce chemical substances during the decomposition process, and direct contact with plant roots may cause root burning.

[0003] Straw is the general term for the stems and leaves of mature crops, usually referring to the remaining parts after harvesting the grains of coarse grains such as wheat, rice, corn, potatoes, rapeseed, cotton, etc. In the past, the treatment of straw usually adopted the method of burning. However, considering the environmental damage, public health, safety hazards, etc. caused by straw burning, the burning of straw has now been completely prohibited. In the southern region, rice can be planted in multiple seasons, and a large amount of rice straw will be produced in each season. The labor cost for recycling these straws is high, and the economic value after recycling and treatment is low, which has become a major problem in the treatment of rice straw.

[0004] If rice straw and silkworm excrement are used as raw materials for low-cost industrial production of silkworm excrement fertilizer, it can not only solve the problem of straw treatment for rice growers, but also solve the problem of silkworm excrement treatment for sericulture farmers, and can also obtain higher economic benefits. To realize the above process idea, a supporting silkworm excrement fertilizer production device needs to be developed.

[0005] Based on this, this case is proposed. Content of the Utility Model

[0006] The purpose of the utility model is to provide a supporting device for industrial silkworm excrement fermentation to realize the industrialized and automated production of silkworm excrement fertilizer.

[0007] To achieve the above purpose, the technical solution of the utility model is as follows:

[0008] A supporting device for industrial silkworm excrement fermentation includes:

[0009] A fermentation tank for the piled fermentation of a mixture of rice straw and silkworm excrement;

[0010] The mobile sand throwing platform includes a chassis, a turning shaft and a driving part. The chassis straddles above the fermentation tank and can reciprocate along the length direction of the fermentation tank. The turning shaft is installed below the chassis through bearings and is arranged along the width direction of the fermentation tank. The driving part is used to drive the movement of the chassis and the rotation of the turning shaft. A number of turning parts for turning the mixture are provided on the turning shaft.

[0011] The spray assembly is arranged on one side or both sides in the moving direction of the chassis and is used to spray water mist on the mixture.

[0012] Furthermore, the turning parts are distributed in a spiral curve on the turning shaft.

[0013] Furthermore, the spiral curve extends from one end of the turning shaft to the other end and just winds around one week.

[0014] Furthermore, the turning part includes a mixing arm and a mixing blade. One end of the mixing arm is vertically fixed on the outer wall of the turning shaft, and the mixing blade is fixed at the other end of the mixing arm. The side of the mixing blade for turning the mixture is of a tooth rake type.

[0015] Furthermore, a reinforcing rib is provided between the mixing blade and the mixing arm.

[0016] Furthermore, track wheels are provided on both sides in the width direction of the chassis, tracks matched with the track wheels are provided at the tops of both sides in the width direction of the fermentation tank, and counterweights are provided at positions in the chassis close to the track wheels.

[0017] Furthermore, it includes a control center, a temperature and humidity sensor, a driving part controller and a spray assembly controller;

[0018] The temperature and humidity sensor is used to monitor the temperature and humidity of the mixture and feed back the monitoring data to the control center;

[0019] The control center judges whether the driving part and the spray assembly need to be started according to the feedback signal and sends control signals to the driving part controller and the spray assembly controller;

[0020] The driving part controller is used to control the start and stop of the driving part;

[0021] The spray assembly controller is used to control the start and stop of the spray assembly.

[0022] Furthermore, brackets are provided on both sides in the moving direction of the chassis, reels are provided on the brackets, dust-proof cloth is wound on the reels, and the dust-proof cloth on both sides, the bottom surface of the chassis and the side walls on both sides of the fermentation tank enclose the turning area.

[0023] The advantages of the utility model are as follows:

[0024] 1. Mixing silkworm excrement with rice straw for fermentation to form fertilizer has the advantages of low cost, simple process, and high fermentation yield. It can not only effectively utilize the waste rice straw, but also condition the silkworm excrement to prepare high-quality organic fertilizer with balanced nutrition and improved soil structure. At the same time, farmers growing rice can profit from selling rice straw, sericulturists can profit from selling silkworm excrement, and organic fertilizer producers can profit from selling silkworm excrement fertilizer, forming a benign interest system. The development of related supporting equipment has realized the automated production of factory-scale silkworm excrement organic fertilizer, reducing costs and increasing efficiency, further improving the processing efficiency of rice straw and silkworm excrement, and contributing to environmental optimization and increased farmer income. 2. Due to the high viscosity of silkworm excrement, the resistance to turning and throwing is very large. If multiple turning and throwing parts are used for turning and throwing simultaneously, there are high process costs and performance requirements for the structure, strength, and driving force of the turning and throwing shaft. In this application, the turning and throwing parts are distributed in a spiral curve on the turning and throwing shaft, ensuring that only one turning and throwing part enters the silkworm excrement during each turning and throwing. While ensuring the turning and throwing effect, it can greatly reduce the turning and throwing resistance, thereby reducing the cost and requirements for the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic flow chart of the factory-scale silkworm excrement fermentation process in the embodiment;

[0026] Figure 2 It is a three-dimensional structure schematic diagram of the supporting equipment for the factory-scale silkworm excrement fermentation process in the embodiment;

[0027] Figure 3 It is a schematic internal structure diagram of the supporting equipment for the factory-scale silkworm excrement fermentation process in the embodiment;

[0028] Figure 4 It is a schematic diagram of the driving part of the supporting equipment for the factory-scale silkworm excrement fermentation process in the embodiment;

[0029] Figure 5 It is a schematic diagram of the structure of the turning and throwing shaft and the spray assembly of the supporting equipment for the factory-scale silkworm excrement fermentation process in the embodiment;

[0030] Figure 6 It is a three-dimensional structure schematic diagram of the turning and throwing shaft in the embodiment;

[0031] Figure 7 It is a schematic block diagram of the principle of the control system of the supporting equipment in the embodiment;

[0032] LABEL DESCRIPTION

[0033] 1. Fermentation tank; 2. Track; 3. Chassis; 301. Track wheel; 302. Reel; 303. Dust-proof cloth; 4. Turning and throwing shaft; 5. Turning and throwing part; 501. Mixing arm; 502. Mixing leaf; 503. Reinforcing rib; 6. Driving part; 7. Spray assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following further describes the present utility model in conjunction with embodiments. It should be understood that the orientation or positional relationships indicated by terms such as "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. in the text are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0035] As Figure 1 shown, this embodiment proposes an industrialized fermentation process for silkworm excrement, including the following steps:

[0036] S1. Crush the rice straw. The crushing process can increase the contact area between the rice straw and the silkworm excrement, which is beneficial to the microbial activities during the fermentation process.

[0037] S2. Adjust the water content of the crushed rice straw. Here, the adjustment of the water content can be carried out by supplementing water or drying and dehydrating. The main purpose is to optimize the fermentation conditions and improve the fertilizer quality. Preferably, the water content can be adjusted to about 55%.

[0038] S3. Add the silkworm excrement and turn it over evenly to form a mixture. The mixing ratio of the silkworm excrement to the rice straw powder can be determined according to the actual application scenario of the fertilizer, such as 1:1, 1:2, or 1:3, etc. To promote fermentation, a fermentation agent (such as EM bacteria, yeast, etc.) or activated compost can be added as an inoculum.

[0039] S4. Adjust the water content of the mixture according to the water content of the silkworm excrement and the water content of the crushed rice straw. For example, in step S1, the water content of the crushed rice straw has been adjusted to 55%. To ensure the best fermentation environment, when the water content of the silkworm excrement is 40% and the mixing ratio of the silkworm excrement to the crushed rice straw is 1:1, water can be continuously added until the water content of the mixture reaches 55%.

[0040] S5. Monitor the temperature and humidity of the mixture in real time. If the temperature drops to the threshold value, the mixture needs to be turned over; if the humidity drops to the threshold value, spray water mist while turning it over to adjust the humidity. Fermentation activities require sufficient oxygen. However, the viscosity of the silkworm excrement is very high, and it is not easy for oxygen to enter after stacking fermentation. As the oxygen is lacking, the fermentation activities will weaken or even stop, resulting in a temperature drop in the fermentation tank 1. At this time, oxygen can be supplemented by turning it over; at the same time, fermentation activities also require the guarantee of environmental humidity. Appropriate water content is the basis for promoting microbial activities. By turning it over and supplementing water, the best fermentation environment can be ensured.

[0041] During the fermentation process, it is not advisable to turn and toss the materials frequently. Frequent turning and tossing will cause the temperature accumulated inside the piled materials to drop, affecting the fermentation speed. Therefore, this embodiment also proposes a supporting device for the industrialized silkworm excrement fermentation process. By implementing temperature and humidity monitoring, automatic turning and tossing of the fermentation tank 1 can be achieved. Details can be found below;

[0042] S6. Until the fermentation ends.

[0043] During the co-fermentation of silkworm excrement and straw, microorganisms (such as bacteria, fungi, etc.) decompose organic substances, such as proteins, cellulose, and hemicellulose in silkworm excrement, as well as cellulose, hemicellulose, and lignin in straw, breaking down complex organic macromolecules into smaller molecules, such as amino acids, fatty acids, sugars, etc. These small-molecule nutrients are further absorbed and utilized by microorganisms. Part of them is converted into microbial cells, and the other part is converted into forms that plants can directly absorb and utilize, such as ammonium nitrogen, nitrate nitrogen, phosphates, etc. At the same time, heat is generated during the fermentation process, causing the temperature of the piled body to rise. The high temperature helps to kill harmful pathogens, parasite eggs, and weed seeds, and finally forms high-quality organic fertilizer.

[0044] As Figures 2 to 7 shown, this embodiment also proposes a supporting device for the above-mentioned industrialized silkworm excrement fermentation process, including a fermentation tank 1, a mobile sand throwing platform, a spray assembly 7, and a control system.

[0045] Specifically referring to Figure 1 , the fermentation tank 1 is a rectangular brick-built tank for the piled fermentation of the mixture. Rails 2 are installed at the tops of the two side walls in the length direction of the tank. As Figure 2 shown, the mobile sand throwing platform includes a chassis 3, a turning and tossing shaft 4, and a driving part 6. The chassis 3 spans above the fermentation tank 1. Rail wheels 301 matching with the rails 2 are provided on both sides in the width direction of the chassis 3 to achieve reciprocating movement along the length direction of the fermentation tank 1. The turning and tossing shaft 4 is installed below the chassis 3 through bearings and is arranged along the width direction of the fermentation tank 1. As Figure 3 shown, the driving part 6 is used to drive the movement of the chassis 3 and the rotation of the turning and tossing shaft 4; a number of turning and tossing parts 5 for turning and tossing the mixture are provided on the turning and tossing shaft 4. Of course, the driving part 6 can also adopt other forms. Attached Figure 4 only shows one of the forms. As Figure 5 shown, the spray assembly 7 is arranged on both sides in the moving direction of the chassis 3 for spraying water mist on the mixture, and can adopt the structural form of a water pipe and a water mist nozzle. To ensure that the water mist enters the inside of the piled materials, when the chassis 3 moves forward to the right, the left spray pipe sprays water mist, and when the chassis 3 moves forward to the left, the right spray pipe sprays water mist.

[0046] To implement the control method shown in step S5 above, the control system of this embodiment is asFigure 7 As shown in the figure, it includes a control center, a temperature and humidity sensor, a drive unit 6 controller, and a spray assembly controller; the temperature and humidity sensor is used to monitor the temperature and humidity of the mixture and feedback the monitoring data to the control center; the control center determines whether the drive unit 6 and the spray assembly 7 need to be started according to the feedback signal and sends a control signal to the drive unit 6 controller and the spray assembly controller; the drive unit 6 controller is used to control the start and stop of the drive unit 6; the spray assembly controller is used to control the start and stop of the spray assembly 7.

[0047] Due to the relatively high viscosity of the silkworm excrement, the turning resistance is very large. If multiple turning members 5 turn at the same time, there are high process costs and performance requirements for the structure, strength, and driving force of the turning shaft 4. For example Figure 6 As shown in the figure, the turning members 5 are distributed in a spiral curve on the turning shaft 4. This spiral curve extends from one end of the turning shaft 4 to the other end and just winds around once, ensuring that only one turning member 5 enters the silkworm excrement each time it turns. While ensuring the turning effect, it can also greatly reduce the turning resistance, thereby reducing the cost and requirements for the equipment. In this embodiment, the turning member 5 includes a mixing arm 501 and a mixing blade 502. One end of the mixing arm 501 is vertically fixed on the outer wall of the turning shaft 4, and the mixing blade 502 is fixed at the other end of the mixing arm 501. The side of the mixing blade 502 for turning the mixture is in the shape of a tooth rake. At the same time, to improve the connection strength between the mixing blade 502 and the mixing arm 501, a reinforcing rib 503 is also provided between the mixing blade 502 and the mixing arm 501.

[0048] Preferably, a counterweight is provided at the position in the chassis 3 near the track wheels 301 to increase the weight of the chassis 3 so that it can walk stably on the track 2 and avoid the reaction force during turning from lifting the chassis 3.

[0049] Preferably, as Figure 2 As shown in the figure, brackets are provided on both sides in the moving direction of the chassis 3. A reel 302 is provided on the brackets, and a dust-proof cloth 303 is wound around the reel 302. The dust-proof cloths 303 on both sides, the bottom surface of the chassis, and the side walls on both sides of the fermentation tank 1 enclose the turning area to form a relatively closed turning space to avoid the flying of rice straw fragments.

[0050] The above embodiments are only used to explain the concept of the present invention, rather than a limitation on the protection scope of the rights of the present invention. Any non-substantive modification made to the present invention using this concept shall fall within the protection scope of the present invention.

Claims

1. An auxiliary device for industrialized silkworm excrement fermentation, characterized in that, Comprising: A fermentation tank for the stacking fermentation of a mixture of rice straw and silkworm excrement; A mobile sand throwing platform, including a chassis, a turning shaft and a driving part. The chassis straddles above the fermentation tank and can reciprocate along the length direction of the fermentation tank. The turning shaft is installed below the chassis through bearings and is arranged along the width direction of the fermentation tank. The driving part is used to drive the movement of the chassis and the rotation of the turning shaft. A number of turning parts for turning the mixture are provided on the turning shaft; A spray assembly, arranged on one side or both sides in the moving direction of the chassis, for spraying water mist on the mixture.

2. The supporting equipment for industrialized silkworm excrement fermentation according to claim 1, characterized in that, The turning parts are distributed in a spiral curve on the turning shaft.

3. The supporting equipment for industrialized silkworm excrement fermentation according to claim 2, characterized in that, The spiral curve extends from one end of the turning shaft to the other end and just winds around one week.

4. The supporting equipment for industrial silkworm excrement fermentation according to claim 1, characterized in that, The turning part includes a mixing arm and a mixing blade. One end of the mixing arm is vertically fixed on the outer wall of the turning shaft, and the mixing blade is fixed at the other end of the mixing arm. The side of the mixing blade for turning the mixture is of a tooth rake type.

5. The supporting equipment for industrialized silkworm excrement fermentation according to claim 4, characterized in that, Reinforcing ribs are provided between the mixing blade and the mixing arm.

6. The supporting equipment for industrialized silkworm excrement fermentation according to claim 1, characterized in that, Track wheels are provided on both sides in the width direction of the chassis, and tracks matching with the track wheels are provided on the tops of both sides in the width direction of the fermentation tank. Counterweights are provided at positions in the chassis close to the track wheels.

7. The supporting equipment for industrialized silkworm excrement fermentation according to claim 1, characterized in that, Including a control center, a temperature and humidity sensor, a driving part controller and a spray assembly controller; The temperature and humidity sensor is used to monitor the temperature and humidity of the mixture and feed back the monitoring data to the control center; The control center judges whether the driving part and the spray assembly need to be started according to the feedback signal and sends control signals to the driving part controller and the spray assembly controller; The driving part controller is used to control the start and stop of the driving part; The spray assembly controller is used to control the start and stop of the spray assembly.

8. The supporting equipment for industrialized silkworm excrement fermentation according to claim 1, characterized in that, Supports are provided on both sides in the moving direction of the chassis. Reels are provided on the supports. Dust-proof cloth is wound on the reels. The dust-proof cloth on both sides, the bottom surface of the chassis and the side walls on both sides of the fermentation tank enclose the turning area.

Images