An agricultural non-point source pollution ecological interception and recycling device

Abstract

The utility model discloses an agricultural non -point source pollution ecological interception and recycling device belongs to the field of recycling, aims at solving the mixed material of excrement and straw under the prior art because contains a large amount of coarse fiber, high solid particle, and the viscosity is significantly higher than single excrement, under the action of traditional stirring system, easy in the tank bottom corner, tank wall vicinity forms " mixing dead area", the material of these areas can not fully contact with microorganism, not only leads to the fermentation efficiency to drop, still can cause local acidification, ammonia nitrogen accumulation etc. problem because long -term deposition, destroys the system stability. Including the anaerobic fermentation tank body for agricultural non -point source pollution ecological interception and recycling, the upper end of anaerobic fermentation tank body is installed the tank cover, and the outer end of anaerobic fermentation tank body and tank cover is provided with fermentation mechanism, and the inside of anaerobic fermentation tank body is provided with stirring mechanism, and the stirring mechanism includes the motor of installing in the middle position of tank cover upper end, and the output shaft lower end of motor is installed with the rotating shaft.

Description

Technical Field

[0001] This utility model belongs to the field of recycling, specifically relating to an ecological interception and recycling device for agricultural non-point source pollution. Background Technology

[0002] Agricultural non-point source pollution is a key issue restricting sustainable agricultural development and ecological environmental security, and its control has become a core task of global agricultural green transformation. Currently, recycling technologies for agricultural waste such as livestock and poultry manure and straw, especially anaerobic fermentation technology, are widely regarded as an important way to solve agricultural non-point source pollution because they can simultaneously achieve pollutant reduction, energy conversion (biogas production), and resource utilization (organic fertilizer preparation).

[0003] In agricultural non-point source pollution ecological interception and recycling systems, anaerobic digesters, as core equipment, play a crucial role in converting mixed organic waste such as manure and straw into clean energy (biogas) and high-quality organic fertilizer. However, existing anaerobic fermentation devices generally suffer from insufficient mixing efficiency and poor mixing uniformity when processing high-viscosity mixtures (such as manure and straw mixtures). Specifically, because manure and straw mixtures contain a large amount of coarse fiber and high solids particles, their viscosity is significantly higher than that of manure alone. Under the action of traditional mixing systems, "mixing dead zones" are easily formed in the corners of the tank bottom and near the tank walls. The material in these areas cannot fully contact the microorganisms, which not only leads to a decrease in fermentation efficiency but also causes problems such as local acidification and ammonia nitrogen accumulation due to long-term deposition, thus damaging the stability of the system. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an ecological interception and recycling device for agricultural non-point source pollution. The device aims to solve the problem that in existing technologies, the mixture of manure and straw contains a large amount of coarse fiber and high solid particles, and its viscosity is significantly higher than that of manure alone. Under the action of traditional stirring systems, "stirring dead zones" are easily formed in the corners of the tank bottom and near the tank walls. The material in these areas cannot fully contact the microorganisms, which not only leads to a decrease in fermentation efficiency, but also causes problems such as local acidification and ammonia nitrogen accumulation due to long-term deposition, thus damaging the stability of the system.

[0006] (2) Technical solution

[0007] To address the aforementioned technical problems, this utility model provides an ecological interception and recycling device for agricultural non-point source pollution, comprising an anaerobic fermentation tank for ecological interception and recycling of agricultural non-point source pollution. A tank cover is installed at the upper end of the anaerobic fermentation tank. A fermentation mechanism is provided at the outer ends of the anaerobic fermentation tank and the tank cover. An agitation mechanism is provided inside the anaerobic fermentation tank, including a motor installed at the middle position of the upper end of the tank cover. A rotating shaft is installed at the lower end of the motor's output shaft. A first fixed sleeve is connected to the upper outer side of the rotating shaft. A disc turbine agitator is fixedly connected to the outer end of the first fixed sleeve. A second fixed sleeve is connected at equal intervals below the first fixed sleeve on the outer side of the rotating shaft. Spiral agitator blades are fixedly connected at equal intervals to the outer side of the second fixed sleeve. An anchor agitator is fixedly connected to the lower end of the rotating shaft. A disassembly unit is provided at the outer end of the rotating shaft.

[0008] Furthermore, the disassembly and assembly unit includes a first bolt connected to the right end of the first fixed sleeve, a second bolt connected to the right end of the second fixed sleeve, a fixed plate fixedly connected to the upper side of the middle part of the rotating shaft and the middle part of the anchor mixer, a third bolt connected to the inner edge of the fixed plate, and a nut threadedly connected to the outer side of the third bolt.

[0009] Furthermore, the fermentation mechanism includes an outer frame fixedly connected to the outside of the anaerobic fermentation tank. A feed pipe is fixedly connected to the middle of the lower end of the anaerobic fermentation tank. An inlet pipe is fixedly connected to the upper left end of the outer frame, and an outlet pipe is fixedly connected to the upper right end of the outer frame. Baffles are fixedly connected to the front and rear ends of the inner side of the outer frame and the outer side of the anaerobic fermentation tank. A feed pipe is fixedly connected to the upper left side of the tank cover, and an exhaust port is fixedly connected to the right end of the tank cover. Support columns are fixedly connected at equal intervals below the outer side of the outer frame. Valves are provided in the feed pipe, the inlet pipe, and the exhaust port.

[0010] Furthermore, the outer side of the anchor-type agitator is slidably connected to the lower inner side of the anaerobic fermentation tank, and the height of the disc turbine agitator is located at the uppermost layer of the fermentation raw materials inside the anaerobic fermentation tank.

[0011] Furthermore, a first mounting hole is provided on the upper right end of the first fixed sleeve, a first threaded groove is provided inside the rotating shaft at the first fixed sleeve, the outer side of the first bolt is slidably connected to the inner side of the first mounting hole, the outer side of the first bolt is threadedly connected to the inner side of the first threaded groove, and the inner side of the first fixed sleeve is slidably connected to the outer side of the rotating shaft.

[0012] Furthermore, a second mounting hole is provided above the right end of the second fixing sleeve, a second threaded groove is provided inside the rotating shaft at the second fixing sleeve, the outer side of the second bolt is slidably connected to the inner side of the second mounting hole, the outer side of the second bolt is threadedly connected to the inner side of the second threaded groove, and the inner side of the second fixing sleeve is slidably connected to the outer side of the rotating shaft.

[0013] Furthermore, a through-hole is provided at the inner edge of the fixing plate, the outer side of the third bolt is slidably connected to the inner side of the hole, the lower side of the screw head of the third bolt abuts against the upper side of the fixing plate below the rotating shaft, and the upper side of the nut abuts against the lower side of the fixing plate above the anchor mixer.

[0014] Furthermore, a through hole is provided at the bottom of the partition, and a hot fluid is installed between the anaerobic fermentation tank and the outer frame.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention, through the setting of a stirring mechanism, allows the disc turbine stirrer, spiral stirring blade, and anchor stirrer to rotate at different heights in the raw materials within the anaerobic fermentation tank when the output shaft of the motor is started and drives the rotating shaft to rotate. The anchor stirrer installed at the bottom of the tank rotates close to the tank wall (preventing sedimentation at the bottom), while the spiral stirring blade installed in the middle pushes the raw materials inside the anaerobic fermentation tank towards mixing. The disc turbine stirrer installed at the top disperses the scum layer at the top of the raw materials, preventing crusting. Thus, by using different stirring methods in combination, dead zones can be eliminated, ensuring stability during the fermentation process.

[0018] This utility model, by setting up a disassembly and assembly unit, allows the anchor mixer to be removed from the lower end of the rotating shaft after the tank cover is removed from the anaerobic fermentation tank body and the third bolt and nut at the outer end of the fixing plate are removed. Then, after the first bolt and the second bolt are removed from the first fixing sleeve and the second fixing sleeve, the first fixing sleeve and the second fixing sleeve can be slid off from the outside of the rotating shaft, and the disc turbine mixer and the spiral mixing blade can be disassembled together, so as to facilitate quick repair when the mixing mechanism is damaged. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application 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 application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the outer frame of this utility model;

[0022] Figure 3 This is a schematic diagram of the stirring mechanism of this utility model;

[0023] Figure 4 This is a schematic diagram of the anchor-type agitator of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure above the outer end of the rotating shaft of this utility model.

[0025] The labels in the attached diagram are as follows: 1. Anaerobic fermentation tank body; 2. Tank lid; 301. Outer frame; 302. Feed pipe; 303. Liquid inlet pipe; 304. Liquid outlet pipe; 305. Baffle plate; 306. Feed pipe; 307. Exhaust port; 308. Support column; 401. Motor; 402. Rotating shaft; 403. First fixing sleeve; 404. Disc turbine agitator; 405. Second fixing sleeve; 406. Spiral agitator blade; 407. Anchor agitator; 501. First bolt; 502. Second bolt; 503. Fixing plate; 504. Third bolt; 505. Nut. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] This specific embodiment is an ecological interception and recycling device for agricultural non-point source pollution, and its structural schematic diagram is shown below. Figure 1 and Figure 2As shown, the anaerobic fermentation tank 1 is used for ecological interception and recycling of agricultural non-point source pollution. A tank cover 2 is installed at the upper end of the anaerobic fermentation tank 1. A fermentation mechanism is set at the outer end of the anaerobic fermentation tank 1 and the tank cover 2. The fermentation mechanism includes an outer frame 301 fixedly connected to the outside of the anaerobic fermentation tank 1. A feed pipe 302 is fixedly connected at the middle position of the lower end of the anaerobic fermentation tank 1. An inlet pipe 303 is fixedly connected to the upper left end of the outer frame 301. An outlet pipe 304 is fixedly connected to the upper right end of the outer frame 301. A partition 305 is fixedly connected at both ends between the inner side of the outer frame 301 and the outer side of the anaerobic fermentation tank 1. A feed pipe 306 is fixedly connected to the upper left side of the tank cover 2. An exhaust port 307 is fixedly connected to the right end of the tank cover 2. Support columns 308 are fixedly connected at equal intervals below the outer side of the outer frame 301. Valves are installed in the feed pipe 302, the feed pipe 306 and the exhaust port 307. A through hole is provided at the bottom of the partition 305, and a hot fluid is installed between the anaerobic fermentation tank 1 and the outer frame 301. When the hot fluid is introduced into the outer frame 301 through the inlet pipe 303, the hot fluid in the inlet pipe 303 will flow through the through hole and out through the outlet pipe 304. This allows the hot fluid continuously entering the outer frame 301 to heat the fermentation raw materials in the anaerobic fermentation tank 1, thereby accelerating the fermentation efficiency of the fermentation raw materials in the anaerobic fermentation tank 1.

[0028] Cooperate Figure 3 As shown, the anaerobic fermentation tank 1 is equipped with a stirring mechanism, which includes a motor 401 installed at the middle of the upper end of the tank cover 2. A rotating shaft 402 is installed at the lower end of the output shaft of the motor 401. A first fixed sleeve 403 is connected to the upper outer side of the rotating shaft 402. A disc turbine agitator 404 is fixedly connected to the outer end of the first fixed sleeve 403. A second fixed sleeve 405 is connected at equal intervals to the outer side of the rotating shaft 402 below the first fixed sleeve 403. Spiral stirring blades 406 are fixedly connected at equal intervals to the outer side of the second fixed sleeve 405. An anchor agitator 407 is fixedly connected to the lower end of the rotating shaft 402. The outer side of the anchor agitator 407 is slidably connected to the lower inner side of the anaerobic fermentation tank 1. The height of the disc turbine agitator 404 is located at the uppermost layer of fermentation raw materials inside the anaerobic fermentation tank 1. When the output shaft of the starting motor 401 rotates, driving the rotating shaft 402 to rotate, the disc turbine agitator 404, the spiral agitator 406, and the anchor agitator 407 can rotate at different heights in the raw materials within the anaerobic fermentation tank 1. The anchor agitator 407 installed at the bottom of the tank can rotate close to the tank wall to prevent sedimentation at the bottom. The spiral agitator installed in the middle pushes the raw materials inside the anaerobic fermentation tank 1 to mix. The disc turbine agitator 404 installed at the top can break up the scum layer at the top of the raw materials to prevent crusting. By using different agitation methods in combination, dead zones can be eliminated, ensuring stability during the fermentation process.

[0029] Cooperate Figure 4 and Figure 5 As shown, a disassembly and assembly unit is provided at the outer end of the rotating shaft 402. The disassembly and assembly unit includes a first bolt 501 connected to the right end of the first fixed sleeve 403. A first mounting hole is provided above the right end of the first fixed sleeve 403. A first threaded groove is provided inside the rotating shaft 402 at the location of the first fixed sleeve 403. The outer side of the first bolt 501 is slidably connected to the inner side of the first mounting hole, and the outer side of the first bolt 501 is threadedly connected to the inner side of the first threaded groove. The inner side of the first fixed sleeve 403 is slidably connected to the outer side of the rotating shaft 402. Thus, after sliding the first fixed sleeve 403 to the mounting position outside the rotating shaft 402, the first bolt 501 is passed through the first mounting hole and then threaded into the first threaded groove, which fixes the first fixed sleeve 403 to the upper outer side of the rotating shaft 402, and simultaneously fixes the disc turbine agitator 404 to the upper outer end of the rotating shaft 402.

[0030] The second fixing sleeve 405 has a second bolt 502 connected to its right end. A second mounting hole is provided above the right end of the second fixing sleeve 405. A second threaded groove is provided inside the rotating shaft 402 at the location of the second fixing sleeve 405. The outer side of the second bolt 502 is slidably connected to the inner side of the second mounting hole, and the outer side of the second bolt 502 is threadedly connected to the inner side of the second threaded groove. The inner side of the second fixing sleeve 405 is slidably connected to the outer side of the rotating shaft 402. Thus, after sliding the second fixing sleeve 405 to the corresponding mounting position on the outer side of the rotating shaft 402, the second bolt 502 is passed through the second mounting hole and then threaded into the second threaded groove. This allows the second fixing sleeve 405 to be fixed to the outer side of the rotating shaft 402 below the first fixing sleeve 403, while simultaneously fixing the spiral stirring blade 406 to the middle position of the outer end of the rotating shaft 402.

[0031] In addition, a fixing plate 503 is fixedly connected to the upper side of the middle part of the anchor mixer 407 on the lower side of the rotating shaft 402. A third bolt 504 is connected to the inner edge of the fixing plate 503, and a nut 505 is threadedly connected to the outer side of the third bolt 504. A through-hole is provided on the inner edge of the fixing plate 503. The outer side of the third bolt 504 is slidably connected to the inner side of the hole. The lower side of the threaded part of the third bolt 504 abuts against the upper side of the fixing plate 503 below the rotating shaft 402. The upper side of the nut 505 abuts against the lower side of the fixing plate 503 above the anchor mixer 407. By placing the fixing plate 503 above the anchor mixer 407 under the first fixing sleeve 403 below the rotating shaft 402, passing the third bolt 504 through the round hole inside the fixing plate 503, and then threading the nut 505 to the other end of the third bolt 504, the two fixing plates 503 are fixed relative to each other, and the anchor mixer 407 is fixed below the rotating shaft 402.

[0032] Working principle: When carrying out ecological interception and recycling of agricultural non-point source pollution, the mixed organic waste such as manure and straw to be recycled is poured into the anaerobic fermentation tank 1 through the feed pipe 306. After the valve in the feed pipe 306 is closed, the motor 401 is turned on, so that the disc turbine agitator 404, the spiral agitator 406 and the anchor agitator 407 agitate the fermentation raw materials entering the anaerobic fermentation tank 1. At the same time, hot fluid is introduced into the outer frame 301 to heat the fermentation raw materials in the anaerobic fermentation tank 1, so that the raw materials ferment stably in the anaerobic fermentation tank 1. Finally, the biogas produced by fermentation is discharged from the exhaust port 307 and collected. The remaining organic fertilizer that has been fermented in the anaerobic fermentation tank 1 is discharged from the discharge pipe 302 and collected.

[0033] All technical features in this embodiment can be freely combined according to actual needs.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An agricultural non-point source pollution ecological interception and recycling device, comprising an anaerobic fermentation tank (1) for agricultural non-point source pollution ecological interception and recycling, characterized in that, The anaerobic fermentation tank (1) is fitted with a tank cover (2) at its upper end. A fermentation mechanism is provided at the outer ends of the anaerobic fermentation tank (1) and the tank cover (2). A stirring mechanism is provided inside the anaerobic fermentation tank (1), and the stirring mechanism includes a motor (401) installed at the middle position of the upper end of the tank cover (2). A rotating shaft (402) is installed at the lower end of the output shaft of the motor (401). A first fixing sleeve (403) is connected to the upper outer side of the rotating shaft (402). A disc turbine agitator (404) is fixedly connected to the outer end of the fixed sleeve (403). A second fixed sleeve (405) is connected at equal intervals to the outside of the rotating shaft (402) below the first fixed sleeve (403). Spiral agitator blades (406) are fixedly connected at equal intervals to the outside of the second fixed sleeve (405). An anchor agitator (407) is fixedly connected to the lower end of the rotating shaft (402). A disassembly and assembly unit is provided at the outer end of the rotating shaft (402).

2. The agricultural non-point source pollution ecological interception and recycling device according to claim 1, characterized in that, The disassembly and assembly unit includes a first bolt (501) connected to the right end of the first fixing sleeve (403), a second bolt (502) connected to the right end of the second fixing sleeve (405), a fixing plate (503) fixedly connected to the upper side of the middle part of the rotating shaft (402) and the anchor mixer (407), a third bolt (504) connected to the inner edge of the fixing plate (503), and a nut (505) threadedly connected to the outer side of the third bolt (504).

3. The agricultural non-point source pollution ecological interception and recycling device according to claim 1, characterized in that, The fermentation mechanism includes an outer frame (301) fixedly connected to the outside of the anaerobic fermentation tank (1), a feed pipe (302) fixedly connected to the middle of the lower end of the anaerobic fermentation tank (1), an inlet pipe (303) fixedly connected to the upper left end of the outer frame (301), an outlet pipe (304) fixedly connected to the upper right end of the outer frame (301), partitions (305) fixedly connected to the front and rear ends between the inner side of the outer frame (301) and the outer side of the anaerobic fermentation tank (1), a feed pipe (306) fixedly connected to the upper left side of the tank cover (2), an exhaust port (307) fixedly connected to the right end of the tank cover (2), and support columns (308) fixedly connected at equal intervals below the outer side of the outer frame (301). Valves are provided in the feed pipe (302), the feed pipe (306), and the exhaust port (307).

4. The agricultural non-point source pollution ecological interception and recycling device according to claim 1, characterized in that, The outer side of the anchor mixer (407) is slidably connected to the lower inner side of the anaerobic fermentation tank (1), and the height position of the disc turbine mixer (404) is located at the uppermost layer of fermentation raw materials inside the anaerobic fermentation tank (1).

5. The agricultural non-point source pollution ecological interception and recycling device according to claim 2, characterized in that, A first mounting hole is provided above the right end of the first fixing sleeve (403). A first threaded groove is provided inside the rotating shaft (402) at the first fixing sleeve (403). The outer side of the first bolt (501) is slidably connected to the inner side of the first mounting hole. The outer side of the first bolt (501) is threadedly connected to the inner side of the first threaded groove. The inner side of the first fixing sleeve (403) is slidably connected to the outer side of the rotating shaft (402).

6. The agricultural non-point source pollution ecological interception and recycling device according to claim 2, characterized in that, A second mounting hole is provided above the right end of the second fixing sleeve (405). A second threaded groove is provided inside the rotating shaft (402) at the second fixing sleeve (405). The outer side of the second bolt (502) is slidably connected to the inner side of the second mounting hole. The outer side of the second bolt (502) is threadedly connected to the inner side of the second threaded groove. The inner side of the second fixing sleeve (405) is slidably connected to the outer side of the rotating shaft (402).

7. The agricultural non-point source pollution ecological interception and recycling device according to claim 2, characterized in that, The fixing plate (503) has a through-hole at its inner edge. The outer side of the third bolt (504) is slidably connected to the inner side of the hole. The lower side of the bolt head of the third bolt (504) abuts against the upper side of the fixing plate (503) below the rotating shaft (402). The upper side of the nut (505) abuts against the lower side of the fixing plate (503) above the anchor mixer (407).

8. The agricultural non-point source pollution ecological interception and recycling device according to claim 3, characterized in that, The partition (305) has a through hole at the bottom inside, and a hot fluid is installed between the anaerobic fermentation tank (1) and the outer frame (301).

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