Temperature control device for manufacturing organic fertilizer
The temperature control device for organic fertilizer composting addresses inefficiencies by automating temperature regulation, improving microbial activity, and ensuring consistent compost quality through real-time adjustments.
Patent Information
- Application Number
- CN202421170618.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-27
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2034-05-27
AI Technical Summary
Existing temperature control methods for organic fertilizer composting are labor-intensive, costly, and inefficient, leading to uneven oxygen supply, heat loss, and water evaporation, which affect microbial activity and compost quality.
A temperature control device with a water supply and exhaust channel, temperature measuring device, and controller that automatically adjusts water supply and exhaust based on real-time temperature measurements to maintain optimal composting conditions.
The device achieves intelligent temperature control with reduced labor intensity and costs, ensuring uniform oxygen supply, preventing water and gas accumulation, and enhancing compost quality and efficiency.
Smart Images
Figure CN222293942U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of organic fertilizer preparation, in particular to a temperature control device for making organic fertilizer. Background Art
[0002] Organic fertilizer is an environmentally friendly fertilizer that can provide the nutrients needed for plant growth. It is mainly made from animal and plant residues or other organic matter that has been fermented and decomposed. Organic fertilizer can improve the physical properties of the soil, increase the porosity of the soil, and improve the soil's water retention and ventilation capacity; organic fertilizer is rich in organic matter, which helps to improve soil fertility and nutrient vitality; the use of organic fertilizer can reduce the use of chemical fertilizers, thereby reducing pollution to the environment and protecting the ecological environment; the nutrients in organic fertilizer are comprehensive, including not only major elements such as nitrogen, phosphorus, and potassium, but also trace elements, which help crops grow in a balanced manner; the application of organic fertilizer can improve the quality of agricultural products, making them taste better and have better nutritional value.
[0003] In modern agricultural production, organic fertilizer is used more and more widely. It is not only an irreplaceable fertilizer for vegetable cultivation, but also used in the cultivation of various crops. As people's awareness of health and environmental protection increases, the demand for organic fertilizer is also growing.
[0004] There are four main ways to make organic fertilizers: composting, green manure, biogas fermentation and bacterial fertilizer. Composting is the most common way to make organic fertilizers. Organic materials such as animal and plant residues and crop straw are piled together and converted into nutrient-rich organic fertilizers through the natural decomposition of microorganisms. In the composting process, it is necessary to properly control conditions such as moisture, ventilation and temperature to promote the activity of microorganisms and the decomposition of organic matter. Temperature is particularly important. Temperature is a key factor affecting the growth and reproduction of microorganisms. Between 30-60°C, different types of microorganisms can effectively decompose organic matter. The suitable temperature for medium and low temperature microorganisms is 30-40°C, while high temperature microorganisms are most active at 50-60°C. At different stages of composting, the requirements for temperature control are also different. If the temperature is too high, the formation of humus may be hindered, affecting the quality and properties of the compost. Controlling temperature is essential to ensure the quality and efficiency of composting.
[0005] In the existing scheme, temperature control is usually carried out by periodic turning and forced ventilation. However, periodic turning requires manual or mechanical operation, which increases labor intensity and operating costs. In addition, heat will be lost during the turning process, affecting the temperature maintenance of the compost. If the turning is not uniform enough, it may cause uneven oxygen supply inside the compost, affecting the activity of microorganisms and the decomposition of organic matter. Excessive forced ventilation may cause the water in the compost to evaporate too quickly, thereby affecting the growth of microorganisms and the decomposition of organic matter. Forced ventilation requires precise control to ensure sufficient oxygen supply without causing excessive loss of heat and water. The control is complex and the operation is difficult. Summary of the invention
[0006] The purpose of the utility model is to overcome the shortcomings of the prior art and propose a temperature control device for making organic fertilizer, which can regulate the temperature in the process of making organic fertilizer with a simple structure, has a good temperature control effect, a simple control method, is easy to operate, and reduces labor intensity and operating costs.
[0007] In order to achieve the above objectives, the utility model proposes the following technical solutions:
[0008] A temperature control device for making organic fertilizer comprises a water supply and exhaust channel, a temperature measuring device, an exhaust pipe and a water supply pipe, wherein the water supply and exhaust channel comprises a central pipe and a water supply and exhaust pipe, the water supply and exhaust pipe are connected and communicated with the central pipe, the water supply and exhaust pipe is buried in the middle of a dung pile, water seepage and air holes are arranged on the water supply and exhaust pipe, one side of the central pipe is respectively connected with the exhaust pipe and the water supply pipe, the exhaust pipe and the water supply pipe are communicated with the central pipe; an exhaust valve is arranged on the exhaust pipe, and a water supply valve is arranged on the water supply pipe; the temperature bag of the temperature measuring device is placed at the center of the dung pile, the temperature of the center of the dung pile is measured, and the opening and closing of the exhaust valve and the water supply valve are determined according to the temperature measurement of the temperature measuring device.
[0009] Preferably, it also includes a controller, the temperature measuring device includes a temperature sensor, the temperature sensor is connected to the controller, the water supply valve and the exhaust valve are connected to the controller, the temperature sensor receives the temperature value measured by the temperature bag, and converts it into an electrical signal and transmits it to the controller, the controller receives the electrical signal transmitted by the temperature sensor, and sends instructions to the water supply valve and the exhaust valve according to the electrical signal to open or close.
[0010] The controller and temperature measuring device mentioned above are already in the prior art, and the use methods are also known to those skilled in the art.
[0011] Preferably, a plurality of water supply and exhaust pipes are provided, all of which are connected to the central pipe.
[0012] Preferably, the water seepage and air permeable holes are regular polygons with the number of sides being not less than 5.
[0013] Preferably, two centralizing pipes are provided, which are respectively connected to the two ends of the water supply and exhaust pipes, and two exhaust pipes and two water supply pipes are provided, which correspond to the centralizing pipes one by one.
[0014] Preferably, the water supply and exhaust pipe is serpentine, and the head end and the tail end of the water supply and exhaust pipe are both connected to the central pipe.
[0015] Preferably, it also includes a drainage device, which includes a base, a drainage cavity and a drainage pipe. The lower part of the base is provided with a pillar to provide support to the base and maintain stability; the drainage cavity is placed at the bottom of the base, the inner bottom surface of the drainage cavity is an inclined surface, the drainage pipe is connected to the lower side of the inner bottom surface of the drainage cavity, and a drainage valve is provided on the drainage pipe; a drainage net is provided in the middle of the base, the area of the drainage net is 0.8~1.2 of the bottom area of the manure pile, the drainage holes on the drainage net only allow water and gas to pass through, the water is discharged into the drainage cavity through the drainage holes, and flows into the drainage pipe along the inclined surface, and the drainage can be drained by opening the drainage valve. The setting of the drainage device prevents water and gas from accumulating at the bottom of the manure pile, improves air permeability, avoids the influence of water and gas accumulation at the bottom on the temperature control effect, and also avoids the influence on the quality of the compost, while preventing the breeding of flying insects, accelerating the maturity of the compost, and facilitating management.
[0016] Preferably, a sewage discharge nozzle is provided on the higher side of the bottom surface of the drainage cavity, and the sewage discharge nozzle is connected to a water source, and the sewage discharge nozzle cleans the sewage retained in the drainage cavity.
[0017] Preferably, the drain pipe is provided with an exhaust port, and a deodorizing fan is provided at the exhaust port to discharge the odor stored in the drain pipe. The exhaust port is placed on the inner side of the drain valve, close to one side of the drain cavity.
[0018] Specifically, all animal manure is first sterilized and disinfected to completely eliminate viral pathogens, and discarded crop straw, pine needles, etc. are crushed, and then the raw materials are mixed and evenly stirred according to the proportion, such as 50% sheep manure, 20% pig manure, 15% cow manure, 10% chicken manure, and 5% discarded straw.
[0019] The dung pile is piled into a trapezoidal shape, the temperature measuring device is inserted into the dung pile, the temperature bag is placed in the center of the dung pile, and the temperature at the center of the dung pile is measured. The size of the trapezoidal pile can be 1m at the upper bottom, 2m at the lower bottom, and 1.5m in height.
[0020] The water supply and exhaust channel is buried horizontally in the center of the manure pile, and then the production of organic fertilizer can begin.
[0021] At the beginning, fermentation begins at natural ambient temperature. The water supply valve is opened and 1m 3The transaminase aqueous solution with a mass concentration of 5‰ penetrates into the manure pile through the water seepage holes in the water supply and exhaust channel to accelerate the biochemical speed. The water supply valve is then closed and the exhaust valve is also in a closed state. The gas generated during the fermentation process can enter the exhaust pipe through the water seepage holes, and the exhaust can be exhausted once the exhaust valve is opened.
[0022] During the whole process, the temperature measuring device measures the fermentation temperature at the center of the manure pile in real time, and then opens and closes the exhaust valve and water supply valve according to the temperature changes. If the fermentation temperature is too high, the exhaust valve is opened to exhaust, and the water supply valve is opened to input tap water for cooling. When the fermentation temperature drops to the appropriate range, the exhaust valve and water supply valve are closed.
[0023] After fermentation is completed, the fermentation status of the manure pile can be checked by testing the amount of ammonia nitrogen conversion.
[0024] The beneficial effects of the utility model are:
[0025] The utility model realizes temperature control by supplying water or exhausting air according to temperature conditions through the cooperation of a temperature measuring device, a water supply and exhaust passage, an exhaust pipe and a water supply pipe.
[0026] The utility model connects the temperature sensor, the water supply valve and the exhaust valve through a controller. The temperature sensor receives the temperature value measured by the temperature bag, converts it into an electrical signal and transmits it to the controller. The controller receives the electrical signal transmitted by the temperature sensor and sends instructions to the water supply valve and the exhaust valve according to the electrical signal to open or close them, thereby achieving automatic temperature control, being more intelligent and reducing manpower.
[0027] The utility model provides a drainage device to collect and process sewage flowing out of the manure pile, a sewage nozzle is provided to flush the sewage retained in the drainage cavity, and a deodorizing fan is provided to process and discharge the gas in the drainage device. The setting of the drainage device prevents water and gas from accumulating at the bottom of the manure pile, thus avoiding the influence of water and gas accumulation at the bottom on the temperature control effect and the influence on the quality of compost, and at the same time avoids the breeding of flying insects, accelerates the maturity of the compost, and facilitates management.
[0028] By adopting the above scheme, the utility model can control the temperature in the process of making organic fertilizer with a simple structure, has a good temperature control effect, a simple control method, is easy to operate, and reduces labor intensity and operating costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0030] Figure 1 It is a schematic structural diagram of the first embodiment.
[0031] Figure 2 2 is a schematic structural diagram of the third embodiment.
[0032] Figure 3 It is a schematic structural diagram of the second embodiment.
[0033] Figure 4 4 is a schematic structural diagram of the fourth embodiment.
[0034] Figure 5 It is a schematic structural diagram of the fifth embodiment.
[0035] Figure 6 4 is a schematic structural diagram of the sixth embodiment.
[0036] In the figure, 1- manure pile, 2- temperature measuring device, 3- water supply and exhaust channel, 4- exhaust pipe, 5- water supply pipe, 21- temperature sensor, 22- temperature bag, 41- exhaust valve, 51- water supply valve, 31- water supply and exhaust pipe, 32- central pipe, 311- seepage exhaust hole, 6- controller, 7- drainage device, 71- base, 72- drainage net, 73- drainage chamber, 74- inclined surface, 75- deodorization fan, 76- sewage nozzle, 77- drainage pipe, 78- drainage valve, 79- support. DETAILED DESCRIPTION
[0037] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0038] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0039] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention 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 invention.
[0040] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0041] First embodiment:
[0042] like Figure 1 As shown, a temperature control device for making organic fertilizer includes a water supply and exhaust channel 3, a temperature measuring device 2, an exhaust pipe 4 and a water supply pipe 5, the water supply and exhaust channel 3 includes a central pipe 32 and a water supply and exhaust pipe 31, the water supply and exhaust pipe 31 is connected and communicated with the central pipe 32, the water supply and exhaust pipe 31 is buried in the middle position of the manure pile 1, the water supply and exhaust pipe 31 is provided with water seepage holes 311, one side of the central pipe 32 is connected with the exhaust pipe 4 and the water supply pipe 5; the exhaust pipe 4 is provided with an exhaust valve 41, the water supply pipe 5 is provided with a water supply valve 51, the exhaust pipe 4 and the water supply pipe 5 are communicated with the central pipe 32; the temperature bag 22 of the temperature measuring device 2 is placed at the center of the manure pile 1, the temperature of the center of the manure pile 1 is measured, and the opening and closing of the exhaust valve 41 and the water supply valve 51 are determined according to the temperature measurement of the temperature measuring device 2.
[0043] Specifically, the raw materials to be composted are first pre-processed, crushed, disinfected, and mixed in proportion. The manure pile 1 is piled into a trapezoidal pile, the temperature measuring device 2 is inserted into the manure pile, the temperature bag 22 is placed in the center of the manure pile 1, and the temperature at the center of the manure pile 1 is measured. The water supply and exhaust channel 3 is buried horizontally in the center of the manure pile 1, and then the production of organic fertilizer can begin. At the beginning, fermentation begins at the natural ambient temperature, the water supply valve 51 is opened, and 1m 3 The transaminase aqueous solution with a mass concentration of 5‰ is then closed, and the water supply valve 51 is also in a closed state.
[0044] During the whole process, the temperature measuring device 2 measures the fermentation temperature at the center of the manure pile 1 in real time, and then opens and closes the exhaust valve 41 and the water supply valve 51 according to the temperature change. If the fermentation temperature is too high, the exhaust valve 41 is opened to exhaust, and the water supply valve 51 is opened to input tap water for cooling. When the fermentation temperature drops to a suitable range, the exhaust valve 41 and the water supply valve 51 are closed. After the fermentation is completed, the fermentation status of the manure pile 1 can be checked by detecting the ammonia nitrogen conversion amount.
[0045] Second embodiment:
[0046] like Figure 3As shown, the difference from the first embodiment is that: it also includes a controller 6, the temperature measuring device 2 includes a temperature sensor 21, the temperature sensor 21 is connected to the controller 6, the water supply valve 51 and the exhaust valve 41 are connected to the controller 6, the temperature sensor 21 receives the temperature value measured by the temperature bag 22, and converts it into an electrical signal to transmit to the controller 6, the controller 6 receives the electrical signal transmitted by the temperature sensor 21, and sends instructions to the water supply valve 51 and the exhaust valve 41 according to the electrical signal to open or close.
[0047] Specifically, the raw materials to be composted are first pre-processed, crushed, disinfected, and mixed in proportion. The manure pile 1 is piled into a trapezoidal pile, the temperature measuring device 2 is inserted into the manure pile, the temperature bag 22 is placed in the center of the manure pile 1, and the temperature at the center of the manure pile 1 is measured. The water supply and exhaust channel 3 is buried horizontally in the center of the manure pile 1, and then the production of organic fertilizer can begin. At the beginning, fermentation begins at the natural ambient temperature, the water supply valve 51 is opened, and 1m 3 The transaminase aqueous solution with a mass concentration of 5‰ is then closed, and the water supply valve 51 is also in a closed state.
[0048] During the whole process, the temperature measuring device 2 measures the fermentation temperature at the center of the manure pile 1 in real time, and the temperature sensor 21 transmits the temperature conditions to the controller 6 in real time. The controller 6 adjusts the opening and closing conditions of the water supply valve 51 and the exhaust valve 41 in real time according to the temperature conditions. If the fermentation temperature is too high, the exhaust valve 41 is opened to exhaust, and the water supply valve 51 is opened to input tap water for cooling. When the fermentation temperature drops to an appropriate range, the exhaust valve 41 and the water supply valve 51 are closed.
[0049] After the fermentation is completed, the fermentation status of the manure pile 1 can be checked by detecting the amount of ammonia nitrogen conversion.
[0050] Third embodiment:
[0051] like Figure 2 As shown, the difference from the first embodiment is that: a plurality of water supply and exhaust pipes 31 are provided, all connected to the central pipe 32, and the water seepage and air permeation holes 311 are regular polygons with the number of sides not less than 5.
[0052] Fourth embodiment:
[0053] like Figure 4 As shown, the difference from the first embodiment is that: two centralizing pipes 32 are provided, which are respectively connected to the two ends of the water supply and exhaust pipes 31, and two exhaust pipes 4 and water supply pipes 5 are provided, which correspond to the centralizing pipes 32 one by one.
[0054] Fifth embodiment:
[0055] like Figure 5As shown, the difference from the first embodiment is that the water supply and exhaust pipe 31 is serpentine, and the head end and the tail end of the water supply and exhaust pipe 31 are both connected to the central pipe 32.
[0056] Sixth embodiment:
[0057] like Figure 6 As shown, the difference from the first embodiment is that: it also includes a drainage device 7, the drainage device 7 includes a base 71, a drainage cavity 73 and a drainage pipe 77, the lower part of the base 71 is provided with a support 79 to provide support force to the base 71 and maintain stability; the drainage cavity 73 is placed at the bottom of the base 71, the inner bottom surface of the drainage cavity 73 is an inclined surface, the drainage pipe 77 is connected to the lower side of the inner bottom surface of the drainage cavity 73, and the drainage pipe 77 is provided with a drainage valve 78; a drainage net 72 is provided in the middle position of the base 71, the area of the drainage net 72 is 0.8~1.2 of the bottom area of the dung pile 1, the drainage holes on the drainage net 72 only allow water and gas to pass through, the water is discharged into the drainage cavity 73 through the drainage holes, and flows into the drainage pipe 77 along the inclined surface, and the drainage can be drained by opening the drainage valve 78.
[0058] A sewage discharge nozzle 76 is provided on a higher side of the bottom surface of the drainage cavity 73 . The sewage discharge nozzle 76 is connected to a water source and cleans the sewage retained in the drainage cavity 73 .
[0059] The drain pipe 77 is provided with an exhaust port, and a deodorizing fan 75 is provided at the exhaust port to discharge the odor in the drain pipe 77 . The exhaust port is placed inside the drain valve 78 , close to one side of the drain cavity 73 .
[0060] Specifically, the raw materials to be composted are first pre-processed, crushed, disinfected, and mixed in proportion. The manure pile 1 is piled into a trapezoidal pile, the temperature measuring device 2 is inserted into the manure pile, the temperature bag 22 is placed in the center of the manure pile 1, and the temperature at the center of the manure pile 1 is measured. The water supply and exhaust channel 3 is buried horizontally in the center of the manure pile 1, and then the production of organic fertilizer can begin. At the beginning, fermentation begins at the natural ambient temperature, the water supply valve 51 is opened, and 1m 3 The transaminase aqueous solution with a mass concentration of 5‰ is then closed, and the water supply valve 51 is also in a closed state.
[0061] During the whole process, the temperature measuring device 2 measures the fermentation temperature at the center of the manure pile 1 in real time, and then opens and closes the exhaust valve 41 and the water supply valve 51 according to the temperature change. If the fermentation temperature is too high, the exhaust valve 41 is opened to exhaust, and the water supply valve 51 is opened to input tap water for cooling. When the fermentation temperature drops to a suitable range, the exhaust valve 41 and the water supply valve 51 are closed. After the fermentation is completed, the fermentation status of the manure pile 1 can be checked by detecting the ammonia nitrogen conversion amount.
[0062] During the entire fermentation process, the sewage at the bottom of the manure pile flows into the drainage chamber 73 through the drainage net, and the drainage valve 78 is opened at regular intervals to discharge the sewage; the opening frequency of the sewage nozzle 76 and the deodorizing fan 75 is coordinated with the drainage valve 78, and the sewage retained in the drainage chamber 73 is flushed at regular intervals, and the gas existing in the drainage device 7 is processed and discharged, so that there is no water or gas accumulation at the bottom of the manure pile 1, thereby avoiding the influence of water and gas accumulation at the bottom on the temperature control effect.
[0063] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A temperature control device for making organic fertilizer, comprising a temperature measuring device, wherein the temperature bag of the temperature measuring device is placed at the center of the dung pile to measure the temperature at the center of the dung pile, characterized in that: It also includes a water supply and exhaust channel, an exhaust pipe and a water supply pipe. The water supply and exhaust channel includes a central pipe and a water supply and exhaust pipe. The water supply and exhaust pipe are connected and communicated with the central pipe. The water supply and exhaust pipe is provided with water seepage holes. The water supply and exhaust pipe is buried in the middle position of the manure pile. One side of the central pipe is respectively connected to the exhaust pipe and the water supply pipe. The exhaust pipe and the water supply pipe are communicated with the central pipe. An exhaust valve is provided on the exhaust pipe. A water supply valve is provided on the water supply pipe. The opening and closing of the exhaust valve and the water supply valve are determined according to the temperature measurement of the temperature measuring device.
2. A temperature control device for making organic fertilizer according to claim 1, characterized in that: It also includes a controller, the temperature measuring device includes a temperature sensor, the temperature sensor is connected to the controller, the water supply valve and the exhaust valve are connected to the controller, the temperature sensor receives the temperature value measured by the temperature bag, and converts it into an electrical signal and transmits it to the controller, the controller receives the electrical signal transmitted by the temperature sensor, and sends instructions to the water supply valve and the exhaust valve according to the electrical signal to open or close.
3. A temperature control device for making organic fertilizer according to claim 1, characterized in that: A plurality of water supply and exhaust pipes are provided, all of which are connected to the central pipe.
4. A temperature control device for making organic fertilizer according to claim 1, characterized in that: The water seepage and air permeable hole is in the form of a regular polygon, and the number of sides is not less than 5.
5. A temperature control device for making organic fertilizer according to claim 1, characterized in that: There are two centralizing pipes, which are respectively connected to the two ends of the water supply and exhaust pipes. There are two exhaust pipes and two water supply pipes, which correspond to the centralizing pipes one by one.
6. A temperature control device for making organic fertilizer according to claim 1, characterized in that: The water supply and exhaust pipe is in a serpentine shape, and the head end and the tail end of the water supply and exhaust pipe are both connected to the central pipe.
7. A temperature control device for making organic fertilizer according to claim 1, characterized in that: It also includes a drainage device, which includes a base, a drainage cavity and a drainage pipe. The lower part of the base is provided with a pillar; the drainage cavity is placed at the bottom of the base, the inner bottom surface of the drainage cavity is an inclined surface, the drainage pipe is connected to the lower side of the inner bottom surface of the drainage cavity, and the drainage pipe is provided with a drainage valve; a drainage net is provided in the middle position of the base, the area of the drainage net is 0.8~1.2 of the bottom area of the dung pile, and the drainage holes on the drainage net only allow water and gas to pass through.
8. A temperature control device for making organic fertilizer according to claim 7, characterized in that: A sewage discharge nozzle is arranged on a higher side of the bottom surface of the drainage cavity, and the sewage discharge nozzle is connected to a water source.
9. A temperature control device for making organic fertilizer according to claim 7, characterized in that: The drain pipe is provided with an exhaust port, a deodorizing fan is provided at the exhaust port, and the exhaust port is placed inside the drain valve, close to one side of the drain cavity.