Sewage treatment device for organic fertilizer production

Abstract

The invention provides a sewage treatment device for organic fertilizer production, and mainly relates to the technical field of organic fertilizer production. A sewage treatment device for organic fertilizer production comprises a tank body, a tank cover is fixedly mounted on the tank body, an agent adding pipe and a water inlet hopper are arranged on the tank cover, a driving disc is arranged in the middle of the tank cover, a driving motor is fixedly mounted on the driving disc, a driving shaft is rotatably mounted in the tank body, a rotating frame is fixedly mounted on the driving shaft, and a water outlet is formed in the rotating frame. A plurality of rotary frames are arranged on the rotary frame, a plurality of first spray heads are arranged on the rotary frames, a plurality of gas rings are arranged on the rotary frame, and a plurality of second spray heads are arranged on the gas rings. The organic fertilizer sewage treatment device has the beneficial effects that the structure can be newly developed and designed, organic fertilizer sewage can be quickly and efficiently blown off, meanwhile, self-cleaning can be carried out, and the organic fertilizer sewage treatment efficiency is improved.

Description

Technical Field

[0001] The present invention mainly relates to the technical field of organic fertilizer production, and specifically, it is a sewage treatment device for organic fertilizer production. Background Art

[0002] Organic fertilizers are a type of fertilizer formed by the decomposition or fermentation of natural organic matter, and can usually be obtained from human or animal feces. Organic fertilizers are also known as "farmyard fertilizers". Any fertilizer using organic substances (compounds containing carbon elements) is called an organic fertilizer. It has the characteristics of a wide variety of types, wide sources, and long fertilizer efficiency.

[0003] During the production process of organic fertilizers, a large amount of wastewater is discharged. If the sewage cannot be treated in time, it will not only take up space but also may affect the production speed of organic fertilizers. Therefore, for organic fertilizer production, a sewage treatment device is an essential equipment. Organic fertilizer sewage is characterized by a high ammonia nitrogen concentration and a low organic matter concentration. It is difficult to treat with general biological treatment methods. Currently, generally, the sewage is first treated by the stripping method to reduce the ammonia nitrogen concentration in the sewage and then conventional chemical sewage treatment is carried out. Ammonia nitrogen exists in water in the forms of NH 3 and NH4 + , and there is the following equilibrium between them: NH 3 +H2O-- NH4 + +OH - . The pH value is the main factor affecting the percentage of free ammonia in water. When the pH value increases, the percentage of free ammonia in water increases. In addition, temperature also affects the balance of the reaction formula, but the temperature has a relatively small impact, and heating a large amount of sewage to a relatively high temperature requires a very large amount of energy. Therefore, in the industry, usually, the pH value is adjusted and appropriately heated for stripping treatment of sewage. When the existing sewage treatment device strips and treats organic fertilizer sewage, during the process of gas floating in the sewage, small bubbles will continuously converge into large bubbles and finally float to the water surface. This situation results in the gas being difficult to fully contact with the sewage in all areas, thereby reducing the stripping efficiency of the sewage. Summary of the Invention

[0004] To solve the deficiencies of the prior art, the present invention provides a sewage treatment device for organic fertilizer production, which can quickly and efficiently strip and treat organic fertilizer sewage through a newly developed and designed structure, and can also perform self-cleaning to improve the efficiency of organic fertilizer sewage treatment.

[0005] To achieve the above object, the present invention is realized through the following technical solutions: A sewage treatment device for organic fertilizer production, including a tank body, a tank cover is fixedly installed on the tank body, a chemical addition pipe and a water inlet hopper are arranged on the tank cover, a driving disk is arranged in the middle of the tank cover, a driving motor is fixedly installed on the driving disk, a driving shaft is rotatably installed in the tank body, a rotating frame is fixedly installed on the driving shaft, a number of rotary frames are arranged on the rotating frame, a number of spray nozzles I are arranged on the rotary frames, a number of air rings are arranged on the rotating frame, and a number of spray nozzles II are arranged on the air rings.

[0006] A filter screen is arranged in the water inlet hopper, a sewage discharge port is opened on one side of the water inlet hopper, a flap is rotatably installed on one side of the water inlet hopper, a side plate is fixedly arranged on one side of the water inlet hopper, and the side plate is closely attached to both sides of the flap.

[0007] A driven gear is rotatably installed in the middle of the driving disk, the driving shaft is fixedly connected to the driven gear, a driving gear is rotatably installed on one side of the driving disk, the output shaft of the driving motor is inserted into the shaft hole of the driving gear, and the driving gear meshes with the driven gear.

[0008] A reinforcing ring is arranged on the rotating frame, a number of brush rods are fixedly installed on the rotating frame, a number of brush heads are arranged on one side of each brush rod close to the inner wall of the tank body, a scraping corner block is arranged at the corner of the rotating frame, the scraping corner block is fixedly connected to the outer end of the brush rod, and a number of rotating shafts are arranged on the rotating frame.

[0009] The rotary frame is fixedly installed on the rotating shaft, a number of ventilation pipes are arranged on the rotary frame, a number of spray nozzles I are arranged on the ventilation pipes, a spiral blade is arranged in the rotary frame, and a number of anti-pushing blades are arranged outside the rotary frame.

[0010] The rotating shafts can be divided into inner ring rotating shafts and outer ring rotating shafts according to the different distances from the driving shaft. The driving direction of the driving shaft driving the rotating frame is counterclockwise rotation. One rotary frame is installed on the inner ring rotating shaft, and the spiral blade in the rotary frame on the inner ring rotating shaft is spiral in the vertical plane from top to bottom in the counterclockwise direction. Two rotary frames are installed on the outer ring rotating shaft, and the spiral blade in the rotary frame on the outer ring rotating shaft is spiral in the vertical plane from top to bottom in the clockwise direction.

[0011] The height of the rotary frame on the inner ring rotating shaft is located between the heights of the two rotary frames on the outer ring rotating shaft.

[0012] A rotating seat is arranged at the bottom in the tank body, the bottom of the driving shaft is installed in the rotating seat, a sewage discharge pipe is arranged at the bottom of the tank body, and a drain pipe is arranged at the bottom on one side of the tank body.

[0013] One-way valves are arranged in both the spray nozzles I and the spray nozzles II.

[0014] A support frame is provided at the bottom of the tank body. The support frame includes a support backing plate, and a number of support legs are fixedly connected to the bottom of the support backing plate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: Through the design of structures such as the rotating frame, air ring, nozzle 1, slewing frame, nozzle 2, etc. in this device, high-temperature and high-pressure gas can be quickly and evenly sent into the sewage and fully contact with the sewage. By the positions of a number of nozzles 1 at the bottom of the tank body changing with the rotation of the drive shaft, and a number of nozzles 2 at a certain height changing with the rotation of the drive shaft and simultaneously rotating with the slewing frame to add high-temperature and high-pressure gas into the water, it can effectively avoid the situation that in the conventional aeration method, gas accumulates into large-volume bubbles during the floating process in water, resulting in a reduction in the contact efficiency with sewage. At the same time, this gas addition structure also has a good sewage agitation effect, which can efficiently mix the sewage with added chemicals (such as pH adjustment liquid). Meanwhile, the cyclic agitation can ensure that the sewage in each part of the tank body can fully contact with the gas, thereby improving the stripping treatment efficiency of fertilizer sewage with a high ammonia nitrogen content. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the structure of the first external view of the present invention; Figure 2 is a schematic diagram of the structure of the second external view of the present invention; Figure 3 is a schematic diagram of the structure of the third external view of the present invention; Figure 4 is a schematic diagram of the internal sectional structure of the present invention; Figure 5 is a schematic diagram of the rotating frame structure of the present invention; Figure 6 is a schematic diagram of the slewing frame structure on the outer ring rotating shaft of the present invention; Figure 7 is a schematic diagram of the slewing frame structure on the inner ring rotating shaft of the present invention; Figure 8 is a schematic diagram of the water flow resistance around the slewing frame of the present invention; Figure 9 is a schematic diagram of the liquid flow in the tank body of the present invention.

[0017] Reference numerals shown in the drawings: 1, tank body; 10, tank cover; 100, rotating seat; 101, sewage discharge pipe; 102, drain pipe; 11, chemical agent addition pipe; 12, water inlet hopper; 120, filter screen; 121, sewage discharge port; 122, flap; 123, side plate; 2, drive disk; 20, driven gear; 21, drive gear; 3, drive motor; 4, drive shaft; 5, rotating frame; 500, second spray head; 50, air ring; 51, reinforcing ring; 52, brush rod; 53, brush head; 54, scraping corner block; 55, rotary shaft; 551, inner rotary shaft; 552, outer rotary shaft; 6, rotary frame; 60, first spray head; 61, ventilation pipe; 62, spiral blade; 63, reverse push blade. Detailed implementation manners

[0018] In combination with the drawings and specific embodiments, the present invention will be further described. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by this application.

[0019] Combined with the attached Figures 1-9 , a sewage treatment device for organic fertilizer production, including a tank body 1, a tank cover 10 is fixedly installed on the tank body 1, a chemical agent addition pipe 11 and a water inlet hopper 12 are arranged on the tank cover 10, a drive disk 2 is arranged in the middle of the tank cover 10, a drive motor 3 is fixedly installed on the drive disk 2, a drive shaft 4 is rotatably installed in the tank body 1, a rotating frame 5 is fixedly installed on the drive shaft 4, a number of rotary frames 6 are arranged on the rotating frame 5, a number of first spray heads 60 are arranged on the rotary frames 6, a number of air rings 50 are arranged on the rotating frame 5, and a number of second spray heads 500 are arranged on the air rings 50; the chemical agent addition pipe 11 is used to add sewage treatment chemicals into the tank body 1, such as adding pH paper adjusting liquid, etc., and a temperature sensor is arranged inside the tank body 1 to be able to monitor the temperature of the wastewater in the tank body 1 in real time.

[0020] A filter screen 120 is arranged inside the water inlet hopper 12, a sewage discharge port 121 is opened on one side of the water inlet hopper 12, a flap 122 is rotatably installed on one side of the water inlet hopper 12, a side plate 123 is fixedly arranged on one side of the water inlet hopper 12, and the side plate 123 is closely attached to both sides of the flap 122; sewage is added to the tank body 1 after being filtered by the water inlet hopper 12. After a certain amount of filter residues accumulate on the filter screen 120 in the water inlet hopper 12, the flap 122 can be opened to discharge through the sewage discharge port 121. The opened flap 122 can guide the discharge of the filter residues, and the side plate 123 can prevent the filter residues from falling from both sides of the flap 122. A collection box can be arranged outside the tank body 1 to collect the filter residues.

[0021] A driven gear 20 is rotatably installed in the middle of the driving disk 2. The driving shaft 4 is fixedly connected to the driven gear 20. A driving gear 21 is rotatably installed on one side in the driving disk 2. The output shaft of the driving motor 3 is inserted into the shaft hole of the driving gear 21. The driving gear 21 meshes with the driven gear 20. The driving motor 3 is installed on the driving disk 2 through a mounting seat. The mounting seat is provided with a transmission device capable of changing the power transmission direction. The driving gear 21 has a smaller diameter and the driven gear 20 has a larger diameter. The driving motor 3 rotates the driving shaft 4 and the rotating frame 5 through the driving gear 21 and the driven gear 20. The cooperation of the driving gear 21 and the driven gear 20 has the effect of reducing the output speed and increasing the rotational torque.

[0022] A reinforcing ring 51 is provided on the rotating frame 5. A plurality of brush rods 52 are fixedly installed on the rotating frame 5. A plurality of brush heads 53 are provided on one side of each brush rod 52 close to the inner wall of the tank body 1. A scraping corner block 54 is provided at the corner of the rotating frame 5. The scraping corner block 54 is fixedly connected to the outer end of the brush rod 52. A plurality of rotating shafts 55 are provided on the rotating frame 5. In this solution, the example of the rotating frame 5 shown is composed of two vertically intersecting rectangular frames. At least three air rings 50 are provided. The number of nozzles two 500 on the air ring 50 is positively correlated with the diameter of the air ring 50. The brush heads 53 can clean each inner wall in the tank body 1. The scraping corner block 54 can effectively clean the upper and lower corners in the tank body 1, effectively preventing sewage and reactants from remaining on the inner wall of the tank body 1. A bubble breaker is provided on the reinforcing ring 51.

[0023] The rotating frame 6 is fixedly installed on the rotating shaft 55. A plurality of air pipes 61 are provided on the rotating frame 6. A plurality of nozzles one 60 are provided on the air pipes 61. A spiral blade 62 is provided in the rotating frame 6. A plurality of counter - thrust blades 63 are provided outside the rotating frame 6. The counter - thrust blades 63 deflect counter - clockwise outside the rotating frame 6. When the rotating frame 6 rotates the sewage counter - clockwise in the tank body 1 driven by the driving motor 3 and the rotating frame 5, the force on the rotating frame 6 is as shown in the appendix Figure 8As shown in the figure, since the relative velocity between the side far from the drive shaft 4 and the sewage is greater than that between the side close to the rotation center and the sewage, the relative force (rotation resistance) it receives will also be greater on the side far from the drive shaft 4 than on the side close to the rotation center. This force difference has a tendency to make the rotary frame 6 rotate clockwise. Due to the angle setting of the reverse thrust blade 63, this situation will be further aggravated. Thus, the entire rotary frame 6 rotates clockwise while rotating counterclockwise with the driven sewage. Since the relative force is more obvious when the rotary frame 6 moves relative to the sewage, and this relative force will be greatly reduced when the rotary frame 6 and the sewage rotate at the same speed and in the same direction. Therefore, in order to maintain a large relative force, the drive motor 3 of this device works in a mode where the drive power is intermittently increased / decreased. When driving at high power, the force between the sewage and the rotary frame 6 is large, driving the rotary frame 6 to rotate itself. When working at low power, it maintains the rotation and agitation state of the rotating frame 5 and the sewage by overcoming the rotation resistance.

[0024] The rotary shaft 55 can be divided into an inner ring rotary shaft 551 and an outer ring rotary shaft 552 according to the different distances from the drive shaft 4. The drive shaft 4 drives the rotating frame 5 to rotate counterclockwise. One rotary frame 6 is installed on the inner ring rotary shaft 551. The spiral blade 62 in the rotary frame 6 on the inner ring rotary shaft 551 is helical in the counterclockwise direction from top to bottom in the vertical plane. Two rotary frames 6 are installed on the outer ring rotary shaft 552. The spiral blade 62 in the rotary frame 6 on the outer ring rotary shaft 552 is helical in the clockwise direction from top to bottom in the vertical plane.

[0025] The height of the rotary frame 6 on the inner ring rotary shaft 551 is located between the heights of the two rotary frames 6 on the outer ring rotary shaft 552. The sewage in the tank body 1 will rotate counterclockwise under the drive of the rotating frame 5 and the rotary frame 6. At this time, the entire rotary frame 6 acts as a stirring blade. Since the sewage rotates rapidly under agitation, the water level in the middle of the tank body 1 will drop under the action of centrifugal force, and the water level close to the inner wall of the tank body 1 will rise. Therefore, the height, position, and quantity of the rotary frame 6 in this solution are as shown in the appendix Figure 9 As shown. Regarding the quantity setting, only one possible situation is listed in this solution. Under this idea, various quantity forms can be set. Through the action of the rotary frame 6 on the inner ring rotary shaft 552, the spiral blade 62 inside it can drive the water flow to flow downward when rotating. Through the action of the rotary frame 6 on the outer ring rotary shaft 551, the spiral blade 62 inside it can drive the water flow to move upward when rotating. Thus, while the sewage in the tank body 1 is stirred horizontally, the sewage is also circulated and stirred in the longitudinal plane, so that the sewage in all parts can fully contact the stripping gas and be fully mixed with the medicament.

[0026] A rotating seat 100 is provided at the bottom of the tank body 1. The bottom of the drive shaft 4 is installed in the rotating seat 100. A sewage discharge pipe 101 is provided at the bottom of the tank body 1, and a drain pipe 102 is provided at the bottom of one side of the tank body 1. The drain pipe 102 is used to discharge the treated sewage in the tank body 1, and the sewage discharge pipe 101 is provided to completely drain the sewage and reaction residues in the tank body 1 and the like.

[0027] One-way valves are provided in both the first spray head 60 and the second spray head 500; the size of the second spray head 500 is larger than that of the first spray head 60.

[0028] A support frame is provided at the bottom of the tank body 1. The support frame includes a support backing plate, and a number of support legs are fixedly connected to the bottom of the support backing plate.

[0029] In this solution, there is a channel (not shown in the figure) for supplying media to the first spray head 60 and the second spray head 500. There are two connection routes for the channel: ① the drive shaft 4, the rotating frame 5, the air ring 50, the second spray head 500; ② the drive shaft 4, the rotating frame 5, the rotary shaft 55, the air pipe 61 on the rotary frame 6, the first spray head 60. Through the above passages, gas can be more evenly transported into the sewage in the tank body 1, and the gas can quickly and evenly come into full contact with the sewage. Since the number of the first spray head 60 and the second spray head 500 is large, the positions are set skillfully, and the positions are constantly moving and changing. The second spray head 500 can rotate around the rotation of the rotating frame 5, and the first spray head 60 rotates around the drive shaft 4 with the rotary frame 6 while the rotary frame 6 also rotates itself. In this way, gas can be very efficiently added to the sewage and come into full contact with the sewage.

[0030] When this device is in use, the sewage is filtered from the water inlet hopper 12 and added into the tank body 1. The drive motor 3 is started to work through the corresponding control equipment to stir the sewage. The pH adjustment liquid is added to the sewage through the chemical agent adding pipe 11 to increase the pH value of the sewage. At the same time, the second spray head 500 and the first spray head 60 blow a large amount of high-temperature and high-pressure gas into the sewage to perform stripping treatment on the fertilizer sewage with a high ammonia nitrogen concentration. The high-temperature gas will appropriately heat the sewage to improve the stripping speed. During the stripping process, the bubble breaker can effectively break a large number of bubbles generated by stripping. The gas is discharged through the water inlet hopper 12 and collected centrally. The filter net 120 can further break the remaining bubbles in the discharged gas. After the stripping treatment, the ammonia nitrogen in the sewage is effectively removed and discharged through the drain pipe 102. The discharged sewage needs to be further treated (conventional sewage treatment steps, which are prior art) to reach the discharge standard before being discharged or reused.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A sewage treatment device for organic fertilizer production, comprising a tank body (1), characterized in that: A tank cover (10) is fixedly installed on the tank body (1). A chemical agent adding pipe (11) and a water inlet hopper (12) are arranged on the tank cover (10). A driving disc (2) is arranged in the middle of the tank cover (10). A driving motor (3) is fixedly installed on the driving disc (2). A driving shaft (4) is rotatably installed in the tank body (1). A rotating frame (5) is fixedly installed on the driving shaft (4). A number of rotating brackets (6) are arranged on the rotating frame (5). A number of first nozzles (60) are arranged on the rotating brackets (6). A number of air rings (50) are arranged on the rotating frame (5). A number of second nozzles (500) are arranged on the air rings (50).

2. The sewage treatment device for organic fertilizer production according to claim 1, wherein: A filter screen (120) is arranged in the water inlet hopper (12). A sewage discharge port (121) is formed on one side of the water inlet hopper (12). A flap (122) is rotatably installed on one side of the water inlet hopper (12). A side plate (123) is fixedly arranged on one side of the water inlet hopper (12). The side plate (123) closely adheres to both sides of the flap (122).

3. The sewage treatment device for organic fertilizer production according to claim 1, characterized in that: A driven gear (20) is rotatably installed in the middle of the driving disc (2). The driving shaft (4) is fixedly connected to the driven gear (20). A driving gear (21) is rotatably installed on one side of the driving disc (2). The output shaft of the driving motor (3) is inserted into the shaft hole of the driving gear (21). The driving gear (21) meshes with the driven gear (20).

4. The sewage treatment device for organic fertilizer production according to claim 1, wherein: A reinforcing ring (51) is arranged on the rotating frame (5). A number of brush rods (52) are fixedly installed on the rotating frame (5). A number of brush heads (53) are arranged on one side of each brush rod (52) close to the inner wall of the tank body (1). A scraping corner block (54) is arranged at the corner of the rotating frame (5). The scraping corner block (54) is fixedly connected to the outer end of the brush rod (52). A number of rotating shafts (55) are arranged on the rotating frame (5).

5. The sewage treatment device for organic fertilizer production according to claim 4, characterized in that: The rotating bracket (6) is fixedly installed on the rotating shaft (55). A number of air pipes (61) are arranged on the rotating bracket (6). A number of first nozzles (60) are arranged on the air pipes (61). A spiral blade (62) is arranged in the rotating bracket (6). A number of anti-pushing blades (63) are arranged outside the rotating bracket (6).

6. The sewage treatment device for organic fertilizer production according to claim 5, wherein: The rotating shafts (55) can be divided into an inner ring rotating shaft (551) and an outer ring rotating shaft (552) according to the different distances from the driving shaft (4). The driving direction of the driving shaft (4) to drive the rotating frame (5) is counterclockwise rotation. One rotating bracket (6) is installed on the inner ring rotating shaft (551). The spiral blade (62) in the rotating bracket (6) on the inner ring rotating shaft (551) is spiraled counterclockwise from top to bottom in the vertical plane. Two rotating brackets (6) are installed on the outer ring rotating shaft (552). The spiral blade (62) in the rotating bracket (6) on the outer ring rotating shaft (552) is spiraled clockwise from top to bottom in the vertical plane.

7. The sewage treatment device for organic fertilizer production according to claim 6, wherein: The height of the rotating bracket (6) on the inner ring rotating shaft (551) is between the heights of the two rotating brackets (6) on the outer ring rotating shaft (552).

8. The sewage treatment device for organic fertilizer production according to claim 1, wherein: A rotating seat (100) is provided at the bottom in the tank body (1), the bottom of the driving shaft (4) is installed in the rotating seat (100), a sewage discharge pipe (101) is provided at the bottom of the tank body (1), and a drain pipe (102) is provided at the bottom on one side of the tank body (1).

9. The sewage treatment device for organic fertilizer production according to claim 1, wherein: One-way valves are provided in both the first spray head (500) and the second spray head (60).

10. The sewage treatment device for organic fertilizer production according to claim 1, wherein: A support frame is provided at the bottom of the tank body (1), the support frame includes a support backing plate, and a plurality of support legs are fixedly connected to the bottom of the support backing plate.

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