Septic tank equipment for monitoring harmful gas based on Internet of Things

Abstract

The invention discloses septic tank equipment for monitoring harmful gas based on Internet of Things, which is used for anaerobic fermentation in a manure-water ratio of (3: 1)-(5.6: 1), and comprises a filter tank for filtering floating impurities on the upper layer and hard impurities on the lower layer through precipitation, and mixing diluted manure water and thick manure water which are filtered and fused again; the manure water with the manure-water ratio of 3: 1-5.6: 1 is introduced into the fermentation tank, and zymophyte is added for fermentation; the suction stirrer is arranged at the bottom of the fermentation tank and used for stirring and sucking the liquid dung, and the suction stirrer operates in the fixed stage to mix the thin liquid dung and the thick liquid dung. According to the anaerobic fermentation equipment, a suction stirrer is pertinently operated in a fixed stage and a temperature change stage of a fermentation tank to stir thin liquid dung and thick liquid dung in the fermentation tank, so that the temperature in the fermentation tank is more uniform, microorganisms are diffused, and meanwhile, the temperature in the fermentation tank is adjusted through stirring, so that the fermentation efficiency is improved. Therefore, the temperature is maintained within the optimal fermentation time, the gas output is increased, and the fermentation is more thorough.

Description

Technical Field

[0001] The present invention relates to the technical field of manure water treatment, and in particular to a septic tank device for monitoring harmful gases based on the Internet of Things. Background Art

[0002] Fecal wastewater is the waste generated by aquaculture and people's lives. In order to utilize the fecal wastewater, anaerobic treatment is used to purify the fecal wastewater.

[0003] According to patent number CN111875171A, published (announcement) date: 2020-11-03, a duck wastewater treatment process and resource recovery method is disclosed, which includes the following steps: coagulation sedimentation treatment to remove fine suspended matter and colloidal substances in duck wastewater; stripping pretreatment to remove and recover ammonia nitrogen, which can avoid the inhibitory effect of high ammonia nitrogen on anaerobic reactions in the later stage; anaerobic biological treatment, using anaerobic equipment for anaerobic biological treatment, anaerobic biological treatment uses facultative or obligate anaerobic bacteria to achieve the degradation of organic matter in duck wastewater; struvite precipitation treatment, struvite precipitation method for deep treatment of anaerobic effluent; aerobic biological treatment, using aerobic equipment for aerobic biological treatment, aerobic biological treatment uses the metabolic activities of aerobic microorganisms to achieve standard discharge of duck wastewater. The present invention can realize the recovery of resource substances such as ammonia, methane and struvite while treating duck wastewater, and at the same time realizes the stabilization, harmlessness and resource utilization of duck wastewater treatment.

[0004] In the prior art including the above-mentioned patent, during the anaerobic treatment of manure water, decomposition is mainly carried out through fermentation. During the fermentation process, it will go through three decomposition stages, and then the fermented liquid will be dehydrated. The dehydrated fragments can be recycled. However, in the industrial treatment process, fermentation is usually carried out in a centralized large fermentation tank. During the fermentation period, the internal manure water has a large area of ​​the fermentation tank, resulting in uneven temperature and microbial distribution. There will be unfermented parts in the final fragments, which can easily lead to the problem of seedling burning during subsequent recycling. Summary of the invention

[0005] The purpose of the present invention is to provide a septic tank device for monitoring harmful gases based on the Internet of Things, aiming to solve the above-mentioned problems.

[0006] In order to achieve the above object, the present invention provides the following technical solution: a septic tank device for monitoring harmful gases based on the Internet of Things, which is used for an anaerobic fermentation step with a manure-water ratio of 3:1 to 5.6:1, comprising:

[0007] The filter tank filters the floating impurities in the upper layer and the hard impurities in the lower layer through sedimentation, and mixes the thin manure water and thick manure water that are re-melted after filtration;

[0008] Fermentation tank, passing manure water with a manure-water ratio of 3:1 to 5.6:1 into the fermentation tank and adding fermentation bacteria for fermentation;

[0009] The suction agitator is arranged at the bottom of the fermentation tank for stirring and sucking the manure water. The suction agitator operates to mix the thin manure water and the thick manure water in the fixed stage, operates to control the temperature in the temperature change stage, and stops operating in the methane stage.

[0010] Preferably, the fixed stage includes between the hydrolysis stage and the hydrogen and acetic acid production stage, and before the hydrogen and acetic acid production stage and the methane production stage.

[0011] Preferably, the temperature change stage includes the temperature higher than 50°C and the temperature lower than 30°C.

[0012] Preferably, the suction agitator is provided with a suction hood at the first end and a top liquid pipe and a discharge pipe above the liquid level at the second end, the suction hood and the top liquid pipe are fixedly connected, a paddle fixedly connected to the output end of the motor is provided in the suction hood, a suction pipe facing the clear liquid layer is provided in the suction hood, a liquid outlet hole is provided on the suction pipe, and the suction pipe sucks the liquid in the clear liquid layer as the paddle rotates.

[0013] Preferably, the suction hood includes a stirring disk, which includes a plurality of fins, and staggered connecting columns are provided between the plurality of fins.

[0014] Preferably, a cooling groove is provided in the suction agitator, and the cooling groove wraps the motor.

[0015] Preferably, the stirring disk is hollow and fixedly connected to the cooling trough, and a liquid inlet pipe and a liquid outlet pipe are respectively provided on the cooling trough.

[0016] Preferably, a pressure cover is provided on the cooling tank, and the pressure cover opens as the pressure in the cooling tank increases.

[0017] Preferably, a diffusion mechanism is provided on the top liquid pipe, and the diffusion mechanism includes a top ball that moves vertically along the top liquid pipe. A sensor head is provided on the top liquid pipe, and the sensor head faces between the top liquid pipe and the top ball.

[0018] Preferably, the top ball is driven close to the top liquid pipe and blocks it.

[0019] In the above technical scheme, the septic tank equipment for monitoring harmful gases based on the Internet of Things provided by the present invention has the following beneficial effects: the suction agitator is operated in a targeted manner during the fixed stage and the temperature change stage of the fermentation tank to stir the thin manure water and the thick manure water in the fermentation tank, so as to make the temperature in the fermentation tank more uniform and allow the microorganisms to diffuse. At the same time, the temperature in the fermentation tank is adjusted by stirring, so as to maintain the temperature at the optimal fermentation time, so as to increase the gas output and make the fermentation more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 A schematic diagram of a fermentation tank flow chart provided by an embodiment of the present invention;

[0022] Figure 2 A schematic diagram of a fermentation tank and a suction agitator provided in an embodiment of the present invention;

[0023] Figure 3 A schematic cross-sectional structure diagram of a suction stirrer provided in an embodiment of the present invention;

[0024] Figure 4 for Figure 3 The enlarged schematic diagram at A in the middle;

[0025] Figure 5 A schematic cross-sectional structure diagram of another angle suction agitator provided in an embodiment of the present invention.

[0026] Description of reference numerals:

[0027] 1. Suction stirrer; 10. Discharge pipe; 11. Suction hood; 111. Paddle blade; 112. Stirring plate; 1121. Cooling channel; 1122. Through pipe; 12. Motor; 13. Cooling trough; 131. Liquid inlet pipe; 132. Liquid outlet pipe; 133. Pressure cover; 14. Liquid pipe; 141. Liquid outlet hole; 15. Diffusion arc; 2. Fermentation tank; 21. Sealed cover; 22. Air outlet; 23. Partition; 3. Diffusion mechanism; 30. Liquid top pipe; 31. Top ball; 32. Slide plate; 33. Pulling part; 34. Induction head. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present disclosure clearer, the technical solution of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0029] like Figure 1-5 As shown, a septic tank device for monitoring harmful gases based on the Internet of Things is used for an anaerobic fermentation step with a manure-water ratio of 3:1 to 5.6:1, comprising:

[0030] The filter tank filters the floating impurities in the upper layer and the hard impurities in the lower layer through sedimentation, and mixes the thin manure water and thick manure water that are re-melted after filtration;

[0031] Fermentation tank 2, passing manure water with a manure-water ratio of 3:1 to 5.6:1 into fermentation tank 2 and adding fermentation bacteria for fermentation;

[0032] A suction stirrer 1 is arranged at the bottom of the fermentation tank 2 for stirring and sucking the manure water. The suction stirrer 1 operates to mix the thin manure water and the thick manure water in the fixed stage, operates to control the temperature in the temperature change stage, and stops operating in the methane stage;

[0033] The fixed stages include between the hydrolysis stage and the hydrogen and acetic acid production stages, and before the hydrogen and acetic acid production stages and the methane production stage.

[0034] Specifically, a diffusion arc 15 is provided in the suction stirrer 1, which facilitates the flow of manure and water. For manure and water with a manure-water ratio of 3:1 to 5.6:1, fermentation is carried out. The ratio of more liquid and less solid makes it easier for the suction stirrer 1 to stir and circulate the manure and water, thereby reducing the burden on the motor 12. The types of fermentation bacteria added include composite bacteria such as lactic acid bacteria, yeast, Lactobacillus buchneri and Enterococcus faecalis. A sealed cover 21 is provided on the fermentation tank 2, and an air outlet 22 is provided on the sealed cover 21. The air outlet 22 is used to suck out the generated methane gas. After the fermentation bacteria are initially added and settled for a predetermined time (the predetermined time is 60 minutes to 90 minutes, after the fermentation bacteria are dissolved in the surface layer), the suction stirrer 1 is started to mix the fermentation bacteria, and then the first stage: the hydrolysis stage, the hydrolysis stage The temperature rises slowly, and there is no need to start the suction stirrer 1 for stirring. Then when part of the manure enters the second stage: the hydrogen and acetic acid production stage, the temperature will rise suddenly. At this time, the suction stirrer 1 is started for stirring to promote the hydrogen and acetic acid production in the second stage to increase the output of the subsequent methane stage. In this stage, the suction stirrer 1 is started or stopped according to the temperature change, so as to maintain the temperature at the optimal fermentation time to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, the suction stirrer 1 is started again for stirring, and the stirring is stopped in the methane stage. After the temperature drops to the normal temperature stage, the suction stirrer 1 is started again to open the discharge pipe 10, and the fermented manure is discharged and dried to obtain crushed materials. The crushed materials after repeated fermentation are not prone to burn seedlings.

[0035] In the above technical scheme, the suction stirrer 1 is operated in a targeted manner during the fixed stage and the temperature change stage of the fermentation tank 2 to stir the thin manure water and the thick manure water in the fermentation tank 2, so as to make the temperature in the fermentation tank 2 more uniform and allow the microorganisms to diffuse. At the same time, the temperature in the fermentation tank 2 is adjusted by stirring, so as to maintain the temperature at the optimal fermentation time, so as to increase the gas output and make the fermentation more thorough.

[0036] As an embodiment provided by the present invention, the temperature change stage includes the temperature being higher than 50° C. and the temperature being lower than 30° C. respectively.

[0037] Specifically, for the fermentation temperature of manure with a manure-to-water ratio of 3:1~5.6:1, when the temperature is higher than 50°C, the reproduction of some microorganisms in the fermentation tank 2 will be restricted. At this time, cooling is performed to reduce the negative impact. When the temperature rises above and then drops below 30°C, the reproduction of microorganisms will also be restricted. This restriction is mostly due to the aggregation of microorganisms, which are limited by the liquid level of the sealing layer. At this time, stirring is beneficial to the diffusion of microorganisms.

[0038] As an embodiment provided by the present invention, a suction hood 11 is provided at the first end of the suction stirrer 1, and a top liquid pipe 30 and a discharge pipe 10 above the liquid surface are provided at the second end. The suction hood 11 and the top liquid pipe 30 are fixedly connected. A paddle 111 fixedly connected to the output end of the motor 12 is provided in the suction hood 11. A liquid suction pipe 14 facing the clear liquid layer is provided in the suction hood 11. A liquid outlet hole 141 is provided on the liquid suction pipe 14. The liquid suction pipe 14 rotates with the paddle 111 to suck the liquid in the clear liquid layer.

[0039] Specifically, the first end of the suction stirrer 1 (with Figure 3 For reference, the first end is the left end and the second end is the right end) is provided with a suction hood 11. When the suction stirrer 1 is started, the paddle 111 rotates to suck the lower layer of manure water. The lower layer of manure water has a higher viscosity. As it is sucked, it will flow along the liquid outlet 141 due to the Venturi effect, driving the liquid in the clear liquid layer to be sucked and mixed, so as to mix the clear liquid layer with small resistance to the activity of upper microorganisms, thereby increasing the mixing efficiency. When the fermentation bacteria are initially added, the manure water with more fermentation bacteria in the upper layer can also be sucked for mixing.

[0040] A partition plate 23 is provided on the sealing cover 21 to separate the viscous fecal water sprayed out from the top liquid pipe 30 so as to maintain the viscosity of a part of the clear liquid layer of the top liquid pipe 30 .

[0041] After the fermentation bacteria are initially added and the settling time is predetermined, the suction stirrer 1 is started to mix the fermentation bacteria. As the suction is applied, the liquid in the clear liquid layer flows along the liquid outlet 141 due to the Venturi effect, so as to mix the clear liquid layer with small resistance to the activity of the upper microorganisms. Then, the first stage: the hydrolysis stage is entered. The temperature rises slowly in the hydrolysis stage, and there is no need to start the suction stirrer 1 for stirring. Then, when part of the manure enters the second stage: the hydrogen and acetic acid production stage, the temperature will rise suddenly. At this time, the suction stirrer 1 is started for stirring to promote the hydrogen and acetic acid production in the second stage to increase the output in the subsequent methane stage. In this stage, the suction stirrer 1 is started or stopped according to the temperature change, so as to maintain the temperature at the optimal fermentation time to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, the suction stirrer 1 is started again for stirring, and the stirring is stopped in the methane stage. After the temperature drops to the normal temperature stage, the suction stirrer 1 is started again to open the discharge pipe 10 to discharge the fermented manure water, and dry it to obtain crushed material. The crushed material after repeated fermentation is not prone to burn seedlings.

[0042] As an embodiment provided by the present invention, a stirring disk 112 is provided in the suction hood 11 , and the stirring disk 112 includes a plurality of fins, and staggered connecting columns are provided between the plurality of fins.

[0043] Specifically, a cooling channel 1121 is provided on the fin, and the cooling channel 1121 is fixedly connected to the cooling groove 13. A through pipe 1122 is provided on the connecting column for cooling water to flow. The manure water that is sucked and flows is diffused through the stirring disk 112, and flows along the connecting column between the fins to separate and mix, so as to break up the viscous part of the manure water, to make the viscosity of the manure water uniform, to make the fermentation process uniform, and to further avoid the burning of seedlings in the debris after subsequent drying.

[0044] After the fermentation bacteria are initially added, the suction stirrer 1 is started after a predetermined settling time to mix the fermentation bacteria. As the suction is applied, the liquid in the clear liquid layer flows along the liquid outlet 141 due to the Venturi effect, so as to mix the clear liquid layer with small resistance to the activity of the upper microorganisms. At the same time, the flowing manure water diffuses through the stirring disk 112, and flows along the connecting column between the fins to separate and mix, so as to break up the viscous part of the manure water, and then enters the first stage: the hydrolysis stage. The temperature rise speed in the hydrolysis stage is slow, and there is no need to start the suction stirrer 1 for stirring. Then, when part of the manure water enters the second stage: the hydrogen and acetic acid production stage, the temperature It will rise suddenly, at this time, start the suction stirrer 1 for stirring, promote the second stage of hydrogen and acetic acid production, so as to increase the output of the subsequent methane stage. In this stage, the suction stirrer 1 is started or stopped according to the temperature change, so as to maintain the temperature at the optimal fermentation time to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, start the suction stirrer 1 for stirring, and stop stirring in the methane stage. After the temperature drops to the normal temperature stage, start the suction stirrer 1 again to open the discharge pipe 10, discharge the fermented manure water, and dry it to obtain crushed material. The crushed material after repeated fermentation is not prone to burn seedlings.

[0045] As an embodiment provided by the present invention, a cooling groove 13 is provided in the suction stirrer 1, and the cooling groove 13 wraps the motor 12;

[0046] The stirring plate 112 is hollow and fixedly connected to the cooling tank 13 . The cooling tank 13 is provided with a liquid inlet pipe 131 and a liquid outlet pipe 132 .

[0047] Specifically, the cooling tank 13 is connected to the water tank through the liquid inlet pipe 131 and the liquid outlet pipe 132 to cool the motor 12. When the temperature in the fermentation tank 2 is too low, the water pump at the liquid inlet pipe 131 is stopped to stop the circulation of the liquid in the cooling tank 13, so as to accumulate the temperature of the motor 12, assist in raising the temperature of the manure water, and enhance the activity of the microorganisms. When the temperature in the fermentation tank 2 is too high, the water pump starts the circulation to cool the motor 12. At the same time, the cooling water will also cool the stirring plate 112 as it flows, thereby increasing the cooling speed of the manure water.

[0048] After the fermentation bacteria are initially added and settled for a predetermined time, the suction stirrer 1 is started to mix the fermentation bacteria. As the suction is applied, the liquid in the clear liquid layer flows along the liquid outlet 141 due to the Venturi effect, and the clear liquid layer with low resistance to the activity of the upper microorganisms is driven for suction and mixing. At the same time, the flowing manure water diffuses through the stirring disk 112, and flows along the connecting column between the fins to separate and mix, so as to break up the viscous part of the manure water, and then enters the first stage: the hydrolysis stage. The temperature rises slowly in the hydrolysis stage, and there is no need to start the suction stirrer 1 for stirring. Then, when part of the manure water enters the second stage: the hydrogen and acetic acid production stage, the temperature will rise suddenly. At this time, the suction stirrer 1 is started for stirring to promote the hydrogen and acetic acid production in the second stage, so as to increase the output of the subsequent methane stage. In this stage In the process, when the temperature is too high, the suction stirrer 1 is started, and the water pump starts to circulate. While cooling the motor 12, the cooling water will also cool the stirring plate 112 as it flows, thereby increasing the cooling speed of the manure water. When the temperature is too low, the water pump at the liquid inlet pipe 131 is stopped to stop the circulation of the liquid in the cooling tank 13, so as to accumulate the temperature of the motor 12, assist in raising the manure water temperature, and maintain the temperature at the optimal fermentation time to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, the suction stirrer 1 is started again for stirring, and the stirring is stopped in the methane stage. After the temperature drops to the normal temperature stage, the suction stirrer 1 is started again to open the discharge pipe 10, and the fermented manure water is discharged, and the crushed material is dried to obtain the crushed material. The crushed material after repeated fermentation is not prone to burn seedlings.

[0049] As an embodiment provided by the present invention, a pressure cover 133 is provided on the cooling tank 13 , and the pressure cover 133 opens as the pressure in the cooling tank 13 increases.

[0050] Specifically, the pressure cover 133 is an elastic member that blocks the cooling tank 13 in the default state. During the fermentation process, the growth of microorganisms will produce mucus, which increases the viscosity. At this time, the water pump power is increased to increase the pressure in the cooling tank 13 and open the pressure cover 133 to dilute the viscosity in the suction agitator 1, reduce the pressure of the motor 12, and promote the dissolution of solidified feces in the fermentation process, thereby accelerating the fermentation.

[0051] After the fermentation bacteria are initially added and settled for a predetermined time, the suction stirrer 1 is started to mix the fermentation bacteria. As the suction is applied, the liquid in the clear liquid layer flows along the liquid outlet 141 due to the Venturi effect, and the clear liquid layer with low resistance to the activity of the upper microorganisms is driven for suction and mixing. At the same time, the flowing manure water diffuses through the stirring disk 112, and flows along the connecting column between the fins to separate and mix, so as to break up the viscous part of the manure water, and then enters the first stage: the hydrolysis stage. The temperature rises slowly in the hydrolysis stage, and there is no need to start the suction stirrer 1 for stirring. Then, when part of the manure water enters the second stage: the hydrogen and acetic acid production stage, the temperature will rise suddenly. At this time, the suction stirrer 1 is started for stirring to promote the hydrogen and acetic acid production in the second stage, so as to increase the output of the subsequent methane stage. In this stage, when the temperature is too high, the suction stirrer 1 is started, and the water pump starts to circulate, and the electric While the machine 12 is cooling, the cooling water will also cool the stirring plate 112 as it flows, thereby increasing the cooling speed of the manure water. When the temperature is too low, stop the water pump at the liquid inlet pipe 131 to stop the circulation of the liquid in the cooling tank 13, accumulate the temperature of the motor 12, and assist in raising the temperature of the manure water to maintain the temperature at the optimal fermentation time. At the same time, increase the water pump power to increase the pressure in the cooling tank 13 and open the pressure cover 133 to dilute the viscosity in the suction stirrer 1 and reduce the pressure of the motor 12 to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, start the suction stirrer 1 again for stirring, and stop stirring in the methane stage. After the temperature drops to the normal temperature stage, start the suction stirrer 1 again and open the discharge pipe 10 to discharge the fermented manure water and dry it to obtain crushed material. The crushed material after repeated fermentation is not prone to burn seedlings.

[0052] As an embodiment provided by the present invention, a diffusion mechanism 3 is provided on the top liquid pipe 30, and the diffusion mechanism 3 includes a top ball 31 that moves vertically along the top liquid pipe 30. A sensor head 34 is provided on the top liquid pipe 30, and the sensor head 34 faces between the top liquid pipe 30 and the top ball 31;

[0053] The top ball 31 is driven close to the top liquid pipe 30 and blocks it.

[0054] Specifically, a slide plate 32 is provided on the top ball 31, and the slide plate 32 is slidably connected to the top liquid pipe 30. Both parts are provided with a pulling part 33 (the pulling part 33 is made of elastic rubber). The sensing head 34 is used to sense the pH value of the fermented manure water. When the pH value deviates, acidic or alkaline liquid is added to the water tank to maintain the pH value. When the viscosity of the manure water in the top liquid pipe 30 is too high, the top ball 31 is pushed by the resistance to pull away the pulling part 33. At this time, the distance between the top ball 31 and the top liquid pipe 30 increases, which facilitates the outflow of viscous manure water. When the viscosity of the manure water in the top liquid pipe 30 is within the normal range, the top ball 31 is pushed by the resistance, and there is a gap between the top ball 31 and the top liquid pipe 30, so that the manure water is sprayed at the part above the liquid surface, prompting the manure water to mix with the upper liquid surface.

[0055] After the fermentation bacteria are initially added and the settling time is predetermined, the suction stirrer 1 is started to mix the fermentation bacteria. As the suction is carried out, the liquid in the clear liquid layer flows along the liquid outlet 141 due to the Venturi effect, so as to mix the clear liquid layer with small resistance to the activity of the upper microorganisms. At the same time, the flowing manure water diffuses through the stirring disk 112, flows along the connecting column between the fins, separates and mixes, so as to break up the viscous part in the manure water, and then enters the first stage: the hydrolysis stage. The temperature rise speed in the hydrolysis stage is slow, and there is no need to start the suction stirrer 1 for Stirring, and then when part of the manure enters the second stage: hydrogen and acetic acid production stage, the temperature will rise suddenly. At this time, the suction stirrer 1 is started for stirring to promote the second stage of hydrogen and acetic acid production to increase the output of the subsequent methane stage. In this stage, when the temperature is too high, the suction stirrer 1 is started, and the water pump starts to circulate. While cooling the motor 12, the cooling water will also cool the stirring plate 112 as it flows, thereby increasing the cooling speed of the manure. When the temperature is too low, stop the water pump at the liquid inlet pipe 131 to stop cooling. The circulation of the liquid in the tank 13 accumulates the temperature of the motor 12, assists in raising the temperature of the manure water, and thus maintains the temperature at the optimal fermentation time. At the same time, the water pump power is increased to increase the pressure in the cooling tank 13. The pressure cover 133 is opened to dilute the viscosity in the suction stirrer 1 and reduce the pressure of the motor 12 to increase the gas output. During the methane stage, the temperature gradually decreases. At this time, the suction stirrer 1 is started again for stirring, and the stirring is stopped at the methane stage. After the temperature drops to the normal temperature stage, the suction stirrer 1 is started again to open the discharge pipe. 10. The fermented manure water is discharged and dried to obtain crushed materials. The crushed materials after repeated fermentation are not prone to burning seedlings. When the viscosity of the manure water in the top liquid pipe 30 is too high, the top ball 31 is pushed by the resistance to pull the pulling part 33 away. At this time, the distance between the top ball 31 and the top liquid pipe 30 increases, which is convenient for the viscous manure water to flow out. When the viscosity of the manure water in the top liquid pipe 30 is within the normal range, the top ball 31 is pushed by the resistance, and there is a gap between the top ball 31 and the top liquid pipe 30, so that the manure water can be sprayed at the part above the liquid surface, so that the manure water mixes with the upper liquid surface.

[0056] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A septic tank equipment for monitoring harmful gases based on the Internet of Things, which is used for an anaerobic fermentation step with a manure-water ratio of 3:1 to 5.6:1, characterized in that: include: The filter tank filters the floating impurities in the upper layer and the hard impurities in the lower layer through sedimentation, and mixes the thin manure water and thick manure water that are re-melted after filtration; A fermentation tank (2), wherein manure water having a manure-water ratio of 3:1 to 5.6:1 is passed into the fermentation tank (2) and fermentation bacteria are added for fermentation; The suction stirrer (1) is arranged at the bottom of the fermentation tank (2) and is used for stirring and sucking the manure water. The suction stirrer (1) operates to mix the thin manure water and the thick manure water in the fixed stage, operates to control the temperature in the temperature change stage, and stops operating in the methane stage.

2. According to claim 1, a septic tank device for monitoring harmful gases based on the Internet of Things is characterized in that: The fixed stage includes between the hydrolysis stage and the hydrogen and acetic acid production stage, and before the hydrogen and acetic acid production stage and the methane production stage.

3. A septic tank device for monitoring harmful gases based on the Internet of Things according to claim 2, characterized in that: The temperature change stages include when the temperature is higher than 50°C and when the temperature is lower than 30°C.

4. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 3 is characterized in that: The suction stirrer (1) is provided with a suction hood (11) at the first end, and a liquid push pipe (30) and a discharge pipe (10) above the liquid surface at the second end; the suction hood (11) and the liquid push pipe (30) are fixedly connected to each other; a paddle (111) fixedly connected to the output end of the motor (12) is provided in the suction hood (11); a liquid suction pipe (14) facing the clear liquid layer is provided in the suction hood (11); a liquid outlet hole (141) is provided on the liquid suction pipe (14); and the liquid suction pipe (14) rotates with the paddle (111) to suck liquid from the clear liquid layer.

5. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 4 is characterized in that: A stirring disk (112) is provided in the suction hood (11), wherein the stirring disk (112) comprises a plurality of fins, and staggered connecting columns are provided between the plurality of fins.

6. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 5 is characterized in that: A cooling groove (13) is provided in the suction stirrer (1), and the cooling groove (13) wraps around the motor (12).

7. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 6 is characterized in that: The stirring disk (112) is hollow and fixedly connected to the cooling trough (13). A liquid inlet pipe (131) and a liquid outlet pipe (132) are respectively provided on the cooling trough (13).

8. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 7 is characterized in that: A pressure cover (133) is provided on the cooling groove (13), and the pressure cover (133) opens as the pressure in the cooling groove (13) increases.

9. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 7 is characterized in that: The push-liquid pipe (30) is provided with a diffusion mechanism (3), the diffusion mechanism (3) comprising a push ball (31) that moves vertically along the push-liquid pipe (30), and the push-liquid pipe (30) is provided with a sensor head (34), the sensor head (34) faces between the push-liquid pipe (30) and the push ball (31).

10. The septic tank equipment for monitoring harmful gases based on the Internet of Things according to claim 9 is characterized in that: The push ball (31) is driven close to the push liquid pipe (30) and blocks it.

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