A livestock manure treatment device for a farm

Abstract

The utility model provides a kind of farm livestock and poultry manure treatment equipment, to solve the problems of high cost, low efficiency and secondary pollution in prior art livestock and poultry manure treatment. The device comprises a feed pipe, a feed pump is arranged on the feed pipe; a vacuum evaporative dryer, a feed inlet and a steam outlet are arranged at the upper part, a discharge port is arranged at the bottom, the feed inlet is connected with the feed pipe; a mixer, the discharge port at the bottom of the vacuum evaporative dryer is connected with the feed inlet; a condenser, the inlet of the condenser is connected with the steam outlet; a vacuum pump, the inlet of the vacuum pump is connected with the inside of the condenser; a vacuum tank, the outlet of the condenser is connected with the inside of the vacuum tank; a first microbial inoculant feeding tank, the discharge port is connected with the inside of the vacuum tank. The device is pre-evaporated by the vacuum evaporative dryer, the water content of manure is reduced to a suitable range, which not only facilitates subsequent rapid fermentation treatment, but also saves energy, and the steam is condensed by the condenser and then subjected to anaerobic decontamination treatment.

Description

Technical Field

[0001] This utility model relates to the technical field of manure treatment devices, specifically to a livestock and poultry manure treatment equipment for farms. Background Technology

[0002] With the development of the livestock industry, the following measures have been taken to manage livestock manure in the environment: 1. Separate solids and liquids of livestock and poultry manure. The liquid phase undergoes anaerobic fermentation to produce biogas, which can be used as an energy source. The residual liquid after anaerobic treatment enters an aerobic tank. Theoretically, water pollution can be solved through aerobic treatment. The residue after dry and wet separation can be processed and converted into organic fertilizer by qualified enterprises. 2. Small and medium-sized farmers without the necessary resources can only let individual farmers take the livestock away for free or even pay them to do so, or store it on-site for natural fermentation. This results in a pervasive, pungent odor. As the scale of the livestock industry continues to expand, livestock and poultry manure cannot be effectively controlled and treated, causing serious environmental pollution.

[0003] The above-mentioned treatment methods have serious drawbacks. Theoretically, it is feasible to separate wet and dry waste into anaerobic fermentation followed by aerobic treatment. Although some larger livestock farms also carry out biochemical treatment of wastewater, it is not thorough. Over time, pollution rebounds. Because it cannot be treated deeply, the pollution of land, water sources, and air has not been fundamentally solved, let alone resource utilization. The treatment of agricultural livestock and poultry manure is currently far behind the treatment of industrial wastewater discharge. This is a major issue that the livestock industry urgently needs to address. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a livestock and poultry manure treatment equipment for farms. The livestock and poultry manure is processed by this equipment to form fermented cow manure, fermented chicken manure, fermented duck manure and other agricultural products. At the same time, by adding microbial flora, the water evaporated from the raw materials is effectively treated and can be directly used to irrigate farmland. There is no problem of repeated pollution, and the ecological environment is completely improved.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A livestock and poultry manure treatment device for farms, characterized in that it comprises: A feed pipe, on which a feed pump is installed; A vacuum evaporation dryer has a feed inlet and a steam outlet at the top and a discharge outlet at the bottom. The feed inlet is connected to a feed pipe. The mixing machine has its inlet connected to the outlet at the bottom of the vacuum evaporation dryer; A condenser, wherein the inlet of the condenser is connected to the steam outlet; A vacuum pump, the inlet of which is connected to the interior of the condenser; A vacuum tank, wherein the outlet of the condenser is connected to the interior of the vacuum tank; In addition, it also includes a first microbial agent feeding box, the discharge port of which is connected to the inside of the vacuum tank, for adding facultative aerobic bacteria into the vacuum tank.

[0006] Furthermore, the vacuum evaporator is equipped with a stirring device, which is a lateral stirring blade.

[0007] Furthermore, the outlet of the vacuum tank is connected to a condensate storage tank.

[0008] Furthermore, it also includes a second microbial agent feeding tank, used to add nitrifying bacteria and carbon source to the condensate storage tank.

[0009] Furthermore, an electric gate valve is installed at the discharge port of the mixer.

[0010] Furthermore, the discharge port of the mixer is also connected to a spiral auger.

[0011] Furthermore, an electric switching valve is also installed at the feed inlet of the vacuum evaporation dryer.

[0012] Furthermore, it also includes a photovoltaic power generation panel, which is electrically connected to the feed pump, vacuum evaporator dryer, mixer, condenser, and vacuum pump.

[0013] The technical solution provided by this utility model has the following advantages compared with the prior art: 1. The moisture in livestock and poultry manure is rapidly evaporated by a vacuum evaporation dryer, reducing its moisture content to 60% to 65%. This moisture content facilitates subsequent rapid aerobic fermentation. Moreover, the vacuum evaporation dryer uses a vacuum method, which can lower the boiling point of water, thereby effectively reducing energy consumption. 2. The first microbial agent dosing tank uses anaerobic and aerobic bacteria to purify condensate. In the anaerobic environment of the vacuum tank, it can effectively eliminate toxic and harmful substances such as hydrogen dioxide. The second microbial agent dosing tank uses nitrifying bacteria and carbon source. In the aerobic environment of the condensate storage tank, it can degrade ammonia nitrogen in the water, thereby effectively purifying the sewage. 3. The solid phase is transformed into odorless and harmless high-quality organic fertilizer through dehydration and rapid fermentation. The liquid phase (i.e., evaporation condensate) is purified by the first and second microbial agent dosing tanks to effectively remove pollutants such as hydrogen dioxide and ammonia nitrogen, and finally obtains purified water that can be directly used for farmland irrigation. The whole process has no wastewater or exhaust gas discharge, which fundamentally solves the secondary pollution problem of traditional methods. 4. When using this device to treat livestock and poultry manure, the dehydration of a batch of manure can be completed within a few hours through vacuum low-temperature drying. The subsequent solid-phase fermentation uses high and medium temperature resistant compound bacteria, which shortens the fermentation cycle of traditional composting, which takes several months, to 48 hours, significantly improving the treatment efficiency and equipment turnover rate, and can meet the daily manure treatment needs of farms. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of the first embodiment of the present utility model; in: 1-Feed pipe; 2-Feed pump; 3-Vacuum evaporator dryer; 4-Mixer; 5-Steam pipe; 6-Condenser; 7-Vacuum pump; 8-Vacuum tank; 9-Condensate storage tank; 10-First microbial agent feeding box; 11-Second microbial agent feeding box; 12-Electric switch valve; 13-Side stirring device; 14-Thermometer; 15-Electric gate valve; 16-Screw auger; 17-Solar panel. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] like Figure 1As shown, this utility model provides a livestock and poultry manure treatment equipment for farms, including a feed pipe 1, a feed pump 2, a vacuum evaporator dryer 3, a mixer 4, a condenser 6, a vacuum pump 7, and a vacuum tank 8. One end of the feed pipe 1 is connected to a livestock and poultry manure storage device, and the other end is connected to the feed inlet of the feed pump 2. The discharge outlet of the feed pump 2 is connected to the upper feed inlet of the vacuum evaporator dryer 3. The mixer 4 is located below the vacuum evaporator dryer 3, and its feed inlet is connected to the lower discharge outlet of the vacuum evaporator dryer 3. Furthermore, a steam outlet is provided at the upper end of the vacuum evaporator dryer 3. The steam outlet is connected to the inlet of the condenser 6 through a steam pipe 5. The outlet of the condenser 6 is connected to the vacuum tank 8. The inlet and outlet of the vacuum pump 7 are connected to the bottom of the condenser 6 and the vacuum tank 8, respectively. The vacuum pump 7 can perform a vacuuming operation on the vacuum evaporator dryer 3, and at the same time, it can draw the condensate inside the condenser 6 into the vacuum tank 8.

[0018] More specifically, an electric switch valve 12 is installed at the upper feed inlet of the vacuum evaporator 3, and a thermometer 14 is installed at the upper part to monitor the internal temperature of the vacuum evaporator 3 tank. A side stirring device 13 is installed inside the tank, which consists of a stirring motor and stirring blades. The stirring motor is fixed to the outer wall of the vacuum evaporator 3 and the output shaft of the stirring motor extends into the vacuum evaporator 3. The stirring blades are connected to the output shaft of the stirring motor and are located on one side inside the vacuum evaporator 3 to stir the livestock and poultry manure entering the interior. In addition, an electric gate valve 15 is installed at the lower discharge port of the vacuum evaporator 3, and a spiral auger 16 is installed at the lower discharge port of the mixer 4 to transport the fermented manure to the storage.

[0019] The vacuum tank 8 is also connected to a first microbial agent feeding box 10. The outlet of the first microbial agent feeding box 10 is connected to the inside of the vacuum tank 8. The first microbial agent feeding box 10 contains a combination of anaerobic and aerobic bacteria. In this embodiment, Clostridium butyricum is the main bacteria, with Bacillus subtilis and nitrite bacteria added. By adding the above-mentioned anaerobic and aerobic bacteria into the vacuum tank 8, toxic and harmful substances such as hydrogen disulfide in the condensate are eliminated, odors are eliminated, and the impact on the sewage treatment system is reduced.

[0020] This device also includes a condensate storage tank 9 and a second microbial agent feeding tank 11. The bottom outlet of the vacuum tank 8 is connected to the condensate storage tank 9 through a pipe, and a switch valve is installed at the bottom outlet of the vacuum tank 8. The second microbial agent feeding tank 11 contains nitrifying bacteria and carbon source. In this embodiment, the nitrifying bacteria are a combination of bacteria represented by prions and Bacillus licheniformis. After the condensate in the vacuum tank 8 is discharged into the condensate storage tank 9, nitrifying bacteria and carbon source are added to the condensate storage tank 9 through the second microbial agent feeding tank 11 to degrade ammonia nitrogen in the water. Through the metabolism of the substrate by microorganisms, the purpose of sewage purification is achieved. The purified sewage can be used for subsequent farmland irrigation.

[0021] For ease of control, a switch valve (not shown in the figure) is also provided at the outlet of the first microbial agent feeding box 10 and the second microbial agent feeding box 11.

[0022] In addition, it includes a solar panel 17, through which the power generated by the solar panel 17 can be used to power the feed pump 2, vacuum evaporator dryer 3, mixer 4, condenser 6, vacuum pump 7, electric switch valve 12, electric gate valve 15, 16 and other electrical components. The conventional power supply is used as a backup and can be switched between each other.

[0023] The specific method for treating livestock and poultry manure using this device is as follows: First, livestock and poultry manure enters the vacuum evaporator dryer 3 through the feed pipe 1 and the feed pump 2. The vacuum pump 7 creates a vacuum inside the vacuum evaporator dryer 3, and the moisture in the livestock and poultry manure evaporates under the vacuum environment of 80°C inside the vacuum evaporator dryer 3. At the same time, the side stirring device 13 works synchronously to ensure that the material is heated evenly and to prevent local overheating and sticking to the wall. This reduces the moisture content of the livestock and poultry manure raw material from more than 85% to 60% to 65%, which is the best starting condition for subsequent rapid aerobic fermentation. Then, when the moisture content of the material in the vacuum evaporator dryer 3 reaches the standard, heating and vacuuming are stopped, and the electric gate valve 15 is opened. The pre-treated livestock and poultry manure enters the mixer 4 for rapid fermentation to remove odors and heavy metals, achieving harmless treatment and transforming the original manure into fermented manure. In this embodiment, high- and medium-temperature resistant bacteria are adopted, which can shorten the fermentation time by 48 hours. After fermentation, the manure generated is transported to storage equipment or other subsequent processing equipment via screw conveyor 16. The final product is high-quality bio-organic fertilizer, which can be directly used for crop planting or sold as a commodity. During the dehydration process, a large amount of water vapor generated is drawn into the condenser 6 by the vacuum pump 7. The condensate formed after the water vapor is cooled by the condenser 6 flows into the vacuum tank 8. At this time, butyric acid bacteria, Bacillus subtilis and nitrite bacteria are added into the vacuum tank 8 through the first microbial agent feeding box 10 to eliminate substances such as hydrogen disulfide in the condensate and at the same time eliminate odor. Once the liquid in the vacuum tank 8 reaches a certain level, open the valve at the outlet at the bottom of the vacuum tank 8 to transfer it to the condensate storage tank 9. If necessary, a water pump can be used for operation. The condensate storage tank is a simple open tank that facilitates contact with air. The second microbial agent is added to the tank through the second microbial agent feeding box 11. This agent is mainly composed of aerobic bacteria, such as prions and Bacillus licheniformis. At the same time, necessary carbon sources are added according to the water quality. These aerobic microorganisms efficiently degrade pollutants such as residual ammonia nitrogen in the water through their own metabolic activities. After sufficient biochemical reaction, the water quality in the tank can meet the standards for farmland irrigation, realizing the recycling of water.

[0024] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A livestock and poultry manure treatment device for farms, characterized in that, include: A feed pipe, on which a feed pump is installed; A vacuum evaporation dryer has a feed inlet and a steam outlet at the top and a discharge outlet at the bottom. The feed inlet is connected to a feed pipe. The mixing machine has its inlet connected to the outlet at the bottom of the vacuum evaporation dryer; A condenser, wherein the inlet of the condenser is connected to the steam outlet; A vacuum pump, the inlet of which is connected to the interior of the condenser; A vacuum tank, wherein the outlet of the condenser is connected to the interior of the vacuum tank; In addition, it also includes a first microbial agent feeding box, the discharge port of which is connected to the inside of the vacuum tank, for adding facultative aerobic bacteria into the vacuum tank.

2. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, The vacuum evaporator dryer is equipped with a stirring device, which consists of lateral stirring blades.

3. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, The outlet of the vacuum tank is connected to a condensate storage tank.

4. The livestock and poultry manure treatment equipment for farms according to claim 3, characterized in that, It also includes a second microbial agent feeding tank, used to add nitrifying bacteria and carbon source to the condensate storage tank.

5. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, An electric gate valve is installed at the discharge port of the vacuum evaporation dryer.

6. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, The discharge port of the mixer is connected to a spiral auger.

7. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, An electric switching valve is also installed at the feed inlet of the vacuum evaporation dryer.

8. The livestock and poultry manure treatment equipment for farms according to claim 1, characterized in that, It also includes a photovoltaic power generation panel, which is electrically connected to the feed pump, vacuum evaporator dryer, mixer, condenser and vacuum pump.

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