A small integrated machine for treating pig farm sewage

Abstract

The present invention provides a small-scale integrated machine for treating pig farm sewage, belonging to the field of sewage treatment, which includes a collecting tank, a slag-liquid separator, an adjustment tank, a coagulation reaction tank and a purification reaction tank arranged in sequence. The water inlet end of the slag-liquid separator is connected to the collecting tank, and the water outlet end is connected to the adjustment tank. A chemical dosing mechanism is arranged on the coagulation reaction tank, and the chemical dosing mechanism is used for dosing the coagulation reaction tank. The purification reaction tank is used for carrying out an ozone oxidation reaction with sewage. A reaction cylinder is arranged in the purification reaction tank. A water outlet pipe is arranged at one end of the purification reaction tank, and a sludge discharge pipe is arranged at the bottom of the purification reaction tank. One end of the sludge discharge pipe is connected to the collecting tank. The beneficial effect of the present invention is that it can be applicable to small-scale individual farmers in breeding, meet the discharge standards and reduce the discharge cost.

Description

Technical Field

[0001] The invention belongs to the field of sewage treatment, and in particular relates to a small-scale integrated pig farming sewage treatment machine. Background Art

[0002] In the past, pig farm wastewater was discharged through centralized treatment, which required dedicated personnel to manage and operate, and had high emission standards. The treatment process was mostly slag-liquid separation - A2 / O biochemical - physicochemical deep treatment.

[0003] This treatment process has been developed to maturity, but it is not suitable for wastewater discharged by a large number of individual breeders that are difficult to concentrate. The investment in pipeline networks is large, and high-standard emissions increase costs. It is also restricted by professional operation and management by dedicated personnel. Therefore, among the wastewater treatment processes and equipment discharged by individual breeders, there is a lack of wastewater treatment equipment suitable for small-scale individual breeders. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a small-scale pig farming sewage treatment integrated machine that can be suitable for small-scale individual farmers, meet emission standards, and reduce emission costs.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is: a small-scale pig farming sewage treatment integrated machine, including a water collection tank, a slag-liquid separator, a regulating tank, a coagulation reaction tank and a purification reaction tank, the water inlet end of the slag-liquid separator is connected to the water collection tank, the water outlet end of the slag-liquid separator is connected to the regulating tank, the coagulation reaction tank is connected to the regulating tank through an inlet pipe, a dosing mechanism is provided on the coagulation reaction tank, the dosing mechanism is used to add medicine to the coagulation reaction tank, a sewage pipe is provided at the bottom of the coagulation reaction tank, the purification reaction tank and the coagulation reaction tank are connected through a connecting pipe, the purification reaction tank is used to react with sewage by ozone oxidation, a reaction cylinder is provided in the purification reaction tank, a water outlet pipe is provided at one end of the purification reaction tank, a mud discharge pipe is provided at the bottom of the purification reaction tank, and one end of the mud discharge pipe is connected to the water collection tank. The chemicals added to the coagulation reaction tank are flocculants and coagulants. The chemicals are mixed with sewage to produce flocs, forming solid-liquid separation. The flocs are discharged from the sewage pipe, and the sewage is purified through ozone oxidation reaction in the purification reaction tank. It is connected to the water collection tank through the sludge pipe to form a cycle.

[0006] Furthermore, an ozone generator is provided on the purification reaction tank, the output end of the connecting pipe is located above the reaction cylinder, and a fender is provided below the reaction cylinder. A catalyst can be added to the ozone generator according to the quality of the effluent water, the ozone generator can process and discharge the waste gas generated by the reaction, and the sewage can form a countercurrent reaction through the reaction cylinder, so that the sewage is purified and meets the discharge standards.

[0007] Further, the chemical dosing mechanism includes a medicine outlet tank, which is arranged on the coagulation reaction tank through a medicine outlet pipe. A medicine outlet rod is rotatably arranged on the medicine outlet pipe. The diameter of the medicine outlet rod matches the width of the medicine outlet pipe. A plurality of grooves are arranged around the medicine outlet rod. The grooves on the medicine outlet rod can intermittently add the medicine into the coagulation reaction tank.

[0008] Further, the chemical dosing mechanism includes a synthesis tank and a turntable. A bracket is arranged on the medicine outlet tank. The synthesis tank is arranged on the bracket. A first outlet is provided through the lower end of the synthesis tank. The turntable is rotatably arranged on the medicine outlet tank. A second outlet is arranged on the turntable. The first outlet cooperates with the second outlet. By the first outlet and the second outlet overlapping, misaligning, and blocking each other, it is controlled whether the medicine enters the medicine outlet tank.

[0009] Further, the chemical dosing mechanism includes a connecting pipe and a blocking plate. There are two connecting pipes and two blocking plates. The two connecting pipes are respectively arranged on both sides of the synthesis tank. A flocculant tank and a coagulant aid tank are respectively arranged on the two connecting pipes. The blocking plate is slidably arranged at the side end of the connecting pipe. By pulling the blocking plate outwards, the length of its protrusion is controlled to change the falling speed of the medicine.

[0010] Further, a retraction device is arranged between the connecting pipe and the blocking plate. The retraction device includes a first straight rod and a second straight rod. One end of the first straight rod is hinged to the outside of the connecting pipe. A connecting seat is arranged at the lower end of the second straight rod. The connecting seat is hinged to the blocking plate. The second straight rod is slidably connected inside the first straight rod. A spring is arranged on the second straight rod. The lower end of the first straight rod is connected to the connecting seat through the spring. Due to the pulling force of the spring, the second pull rod automatically retracts into the first pull rod.

[0011] Further, a connecting plate is rotatably arranged in the coagulation reaction tank. Stirring rods are arranged on both sides of the lower end of the connecting plate. Stirring paddles are arranged on the stirring rods. Through the stirring paddles arranged on both sides, the medicine and the sewage can be more fully mixed.

[0012] Further, scales are arranged on the synthesis tank. Through the setting of the scales, it is convenient to control the dosage of the flocculant and the coagulant aid added.

[0013] The advantages and positive effects of the present invention are:

[0014] 1. Due to adopting the above technical solution, the equipment is convenient to connect, the sewage treatment process is reduced, it meets the needs of small-scale breeding households, is simple to operate, is no longer restricted by aspects such as professional operation and management by special personnel, and the purified sewage can be used for irrigation of forestry and agricultural greening vegetation, reducing the emission cost.

[0015] 2. The sludge in the purification reaction tank is discharged into the sump through the sludge discharge pipe and separated by a slag-liquid separator to form a cycle, eliminating the need for a separate dedicated sludge treatment device.

[0016] 3. The reaction cylinder is provided to enable the sewage to form a countercurrent reaction in the purification reaction tank, causing the sludge to sink and the up-to-standard water to be discharged from the outlet pipe.

[0017] 4. The dosing mechanism can dispense the chemicals according to the water quality requirements, facilitating the proportioning of the flocculant and coagulant aid by weight. The falling speed of the chemicals can be controlled by the baffle, and the retraction device can automatically return the baffle to its original position, making the operation convenient. The chemical outlet rod can dispense intermittently according to the water quality conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the structural diagram of the present invention;

[0019] Figure 2 is the detailed view of part A of the present invention;

[0020] Figure 3 is the top view of the bracket and turntable of the present invention;

[0021] Figure 4 is the side view of the synthesis tank of the present invention;

[0022] Figure 5 is the structural diagram of the retraction device of the present invention;

[0023] Figure 6 is the schematic diagram of pulling out the baffle of the present invention;

[0024] Figure 7 is the internal structural diagram of the connecting pipe of the present invention.

[0025] In the figure:

[0026] 1. Sump; 2. Slag-liquid separator; 3. Regulation tank; 4. First lift pump; 41. Second lift pump; 5. Inlet pipe; 6. Flowmeter; 7. Flocculant tank; 8. Coagulant aid tank; 9. First connecting pipe; 91. Sliding groove; 10. Baffle plate; 101. Positioning block; 11. First straight rod; 111. Second straight rod; 112. Spring; 113. Connecting seat; 12. Synthesis tank; 121. Scale; 122. Support; 123. First outlet; 13. First motor; 131. Gear; 14. Turntable; 141. Second outlet; 15. Medicine outlet box; 151. Inclined plate; 152. Medicine outlet pipe; 16. Second motor; 161. Medicine outlet rod; 17. Coagulation reaction tank; 18. Third motor; 19. Connecting plate; 191. Stirring rod; 192. Stirring paddle; 20. Drain pipe; 21. Second connecting pipe; 211. Input end; 212. Output end; 22. Ozone generator; 23. Purification reaction tank; 231. Reaction cylinder; 232. Mud guard; 24. Outlet pipe; 25. Sludge discharge pipe. Detailed implementation manners

[0027] The present invention will be further described below in conjunction with embodiments and drawings.

[0028] As Figures 1 to 7 shown, this embodiment provides a small-scale pig farm sewage treatment integrated machine, including a sump 1, a slag-liquid separator 2, a regulation tank 3, a coagulation reaction tank 17 and a purification reaction tank 23. The water inlet input end of the slag-liquid separator 2 is connected to the sump 1 through a pipeline, and the slag output end is connected to the external waste residue collection place. A first lift pump 4 is arranged in the sump 1. The first lift pump 4 is connected to a pipeline, and a water inlet valve is arranged on the pipeline at the water inlet input end. The water outlet output end of the slag-liquid separator 2 is connected to the regulation tank 3 through a pipeline. The regulation tank 3 is used to regulate the water quality and water volume of the sewage. The regulation tank 3 is a well-known technology and will not be elaborated here.

[0029] The coagulation reaction tank 17 is connected to the regulating tank 3 through the water inlet pipe 5. A second lift pump 41 is arranged in the regulating tank 3, and the second lift pump 41 is connected to the water inlet pipe 5. An inlet valve and a flow meter 6 are successively arranged on the water inlet pipe 5. A chemical dosing mechanism is arranged on the coagulation reaction tank 17 for uniformly adding chemicals into the coagulation reaction tank 17. The added chemicals are flocculants and coagulant aids. A third motor 18 is arranged at the top end of the coagulation reaction tank 17. The output end of the third motor 18 penetrates through the coagulation reaction tank 17. A connecting plate 19 is arranged at the output end. Two stirring rods 191 are arranged at the lower end of the connecting plate 19. The two stirring rods 191 are located on both sides of the connecting plate 19. Stirring paddles 192 are arranged on the stirring rods 191 to fully mix the chemicals with the sewage to form solid-liquid separation. A sewage discharge pipe 20 is arranged at the bottom of the coagulation reaction tank 17. Flocculent substances are discharged from the sewage discharge pipe 20. A sewage discharge valve is arranged on the sewage discharge pipe 20, and the small-flow continuous discharge or large-flow intermittent rapid discharge is controlled by adjusting the sewage discharge valve.

[0030] The coagulation reaction tank 17 is connected to the purification reaction tank 23 through a second connecting pipe 21. One end of the second connecting pipe 21 connected to the coagulation reaction tank 17 is the input end 211, and one end of the second connecting pipe 21 connected to the purification reaction tank 23 is the output end 212. The input end 211 is higher than the output end 212. An ozone generator 22 is connected to the purification reaction tank 23. The sewage is treated by ozone oxidation in the purification reaction tank 23. Ozone oxidation treatment is a well-known technology and will not be elaborated here. To improve the decomposition ability of ozone, a catalyst can be put into the ozone generator 22. The ozone generator 22 treats and discharges the waste gas generated after the reaction. A reaction cylinder 231 is arranged in the purification reaction tank 23, which can be used for countercurrent reaction. The output end 212 is vertically arranged at the upper end of the reaction cylinder 231. A baffle 232 is arranged below the reaction cylinder 231. A water outlet pipe 24 is arranged at one end of the purification reaction tank 23. A sludge discharge pipe 25 is arranged at the bottom end of the purification reaction tank 23. One end of the sludge discharge pipe 25 is connected to the collection tank 1 to form a cycle.

[0031] The chemical dosing mechanism includes a first connecting pipe 9, a baffle 10, a synthesis tank 12 and a chemical outlet tank 15. A bracket 122 is arranged at the upper end of the chemical outlet tank 15, and the synthesis tank 12 is arranged on the bracket 122. Two first connecting pipes 9 and two baffles 10 are arranged. The two first connecting pipes 9 are respectively arranged on both sides of the synthesis tank 12. A flocculant tank 7 is arranged on one first connecting pipe 9, and a coagulant aid tank 8 is arranged on the other first connecting pipe 9. A sliding groove 91 is arranged in the first connecting pipe 9. One end of the sliding groove 91 penetrates through the first connecting pipe 9. The baffle 10 is slidably arranged in the sliding groove 91. To prevent the baffle 10 from falling off, a positioning block 101 is arranged at the lower end of the baffle 10.

[0032] A retraction device is provided between the first connecting pipe 9 and the baffle 10. There are two retraction devices. The retraction device includes a first straight rod 11 and a second straight rod 111. One end of the first straight rod 11 is hinged to the outside of the first connecting pipe 9. A connecting seat 113 is provided at the lower end of the second straight rod 111. The connecting seat 113 is hinged to the upper end of the baffle 10. The first straight rod 11 and the second straight rod 111 are arranged collinearly. The second straight rod 111 is slidably connected within the first straight rod 11. A spring 112 is provided on the second straight rod 111. One end of the spring 112 is hung on the lower end of the first straight rod 11, and the other end of the spring 112 is hung on the connecting seat 113. Through the pulling force of the spring 112, the default position of the baffle 10 blocks the first connecting pipe 9, preventing the medicament from passing through.

[0033] A scale 121 is provided on the synthesis tank 12 to facilitate the proportioning of the flocculant and the coagulant aid according to the scale. A first outlet 123 is provided at the lower end of the synthesis tank 12. The first outlet 123 penetrates through the support 122 and communicates with the medicine outlet tank 15. A gear 131 is rotatably provided on the medicine outlet tank 15. The gear 131 is driven by a first motor 13. A turntable 14 is provided at the upper end of the medicine outlet tank 15 through a shaft. Teeth are provided on the outer periphery of the turntable 14. The gear 131 meshes with the teeth on the turntable 14. A second outlet 141 is provided on the turntable 14. The first outlet 123 and the second outlet 141 are of matching sizes. The second outlet 141 is rotationally matched with the first outlet 123 to achieve the coincidence, intersection, and occlusion of the two outlets, thereby controlling the amount of the medicament in the synthesis tank 12 entering the medicine outlet tank 15.

[0034] A medicine outlet pipe 152 is provided at the lower end of the medicine outlet tank. The medicine outlet pipe 152 communicates with the coagulation reaction tank 17. Two inclined plates 151 are symmetrically provided on both sides at the lower end inside the medicine outlet tank 15. The two inclined plates 151 are in a "V" shape, causing the medicament to naturally converge towards the medicine outlet pipe 152. A medicine outlet rod 161 is rotatably provided within the medicine outlet pipe 152. The diameter of the medicine outlet rod 161 matches the width of the medicine outlet pipe. Grooves are provided on the medicine outlet rod 161. A plurality of grooves are provided around the medicine outlet rod 161, enabling the medicament to enter the coagulation reaction tank 17 in batches, facilitating the control of the amount of the medicament. A second motor 16 is provided at the side end of the medicine outlet pipe 152. The output end of the second motor 16 is connected to the medicine outlet rod 161, driving the medicine outlet rod 161 to rotate.

[0035] The working process of this example:

[0036] The user needs to provide the collection tank 1, the slag-liquid separator 2 and the regulating tank 3 by himself / herself. The sewage enters the collection tank 1, and the sewage is sent into the slag-liquid separator 2 through the first lift pump 4. The slag-liquid separator 2 separates the waste residue in the sewage, enabling the sewage to enter the regulating tank 3. The regulating tank 3 processes the water quality and water volume of the sewage. Then the sewage enters the coagulation reaction tank 17 through the second lift pump 41 via the water inlet pipe 5, and the dosage of the flocculant and the coagulant aid is determined according to the water quality of the sewage.

[0037] Pull out the baffle on the connecting pipe below the flocculant tank 7 outward, and pull out the second straight rod from the first straight rod, so that the flocculant enters the synthesis tank 12. According to the required ratio as needed, until the flocculant reaches the required scale 121, release the baffle, and the spring retracts the second straight rod into the first straight rod, and the baffle automatically returns to its original position.

[0038] Pull out the baffle on the connecting pipe below the coagulant aid tank 8 outward, and pull out the second straight rod from the first straight rod, so that the coagulant aid enters the synthesis tank 12. According to the required ratio as needed, until the coagulant aid reaches the required scale 121, release the baffle, and the spring retracts the second straight rod into the first straight rod, and the baffle automatically returns to its original position.

[0039] The first motor 13 rotates, the gear 131 meshes with the teeth on the outer periphery of the turntable 14, driving the turntable 14 to rotate. The second outlet 141 on the turntable 14 coincides with the first outlet 123, and the flocculant and the coagulant aid fall into the medicine outlet tank 15. According to the required dosage of the medicine for the sewage, the second motor 16 rotates, causing the medicine outlet rod 161 to rotate, and the groove on the medicine outlet rod 161 drives the medicine to enter the coagulation reaction tank 17.

[0040] The third motor 18 is started, driving the two stirring paddles 192 to rotate, so that the sewage and the medicine are fully mixed and reacted, resulting in solid-liquid separation. The flocs are discharged from the sewage discharge pipe 20, and the continuous discharge of a small flow or the intermittent rapid discharge of a large flow is controlled by adjusting the sewage discharge valve.

[0041] The sewage enters the purification reaction tank 23 by gravity through the second connecting pipe 21. The ozone generator 22 is started to carry out ozone oxidation treatment in the purification reaction tank 23. According to the water quality situation, a catalyst is added. The sewage flows into the reaction cylinder 231 from the upper end. Under the action of pressure, the sewage reaches the baffle 232, and the sludge falls from the baffle 232. The up-to-standard water rises from the outside of the reaction cylinder 231 and flows out from the water outlet pipe 24, enabling the up-to-standard water to be discharged clearly and without peculiar smell, and can be used for the irrigation of agricultural and forestry greening vegetation up to the standard. The waste gas generated by the reaction is discharged through the ozone generator 22, and the sludge enters the collection tank 1 from the sludge discharge pipe 25, and the sludge is separated by the slag-liquid separator 2 again, and thus the cycle is carried out.

[0042] The beneficial effects of the present invention are:

[0043] The treatment process of the present invention is simple, not subject to restrictions such as professional operation and management by dedicated personnel, and can meet the discharge standards without complicated processes, thereby reducing discharge costs. The present invention is suitable for wastewater discharged by a large number of individual farmers that are not easily concentrated.

[0044] The present invention can remove pollutants by coagulation sedimentation filtration without backwashing, and ozone oxidation treatment can purify water and disinfect. The sludge in the purification reaction tank 23 is discharged into the water collection tank 1, and the sludge is discharged through the slag-liquid separator 2, thereby forming a cycle.

[0045] The dosing mechanism can add medicine according to the situation. The flocculant tank 7 and the coagulant tank 8 are set separately, which can better control the ratio of the two. The agent can be made to fall by pulling the blocking plate 10, and the falling speed of the agent can be controlled according to the length of the pulled-out blocking plate 10. The retraction device can make the blocking plate 10 return to its original position automatically, which is convenient for operation. The synthesis tank 12 can bring the flocculant and the coagulant together, and the flocculant and the coagulant can be dropped separately. The respective amounts of the flocculant and the coagulant can be intuitively seen according to the scale 121, which is convenient for proportioning.

[0046] The first motor 13 can control the rotation of the turntable 14 , and the falling speed of the medicine in the synthesis tank 12 is controlled by staggering, overlapping and interlacing the first outlet 123 and the second outlet 141 .

[0047] The inclined plate 151 allows the reagents to be automatically collected at the reagent outlet pipe 152, and the reagent outlet rod 152 is rotated so that the reagents can be intermittently added to the coagulation reaction tank 17 to prevent excessive addition of the reagents.

[0048] The reaction cylinder 231 can cause the sewage to undergo a countercurrent reaction to fully react, and the mud guard 232 can block the sludge.

[0049] One or more embodiments of the present invention are described in detail above, but the contents are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent coverage of the present invention.

Claims

1. A small-scale integrated machine for treating pig farm sewage, comprising a sump (1), a slag-liquid separator (2) and an adjustment tank (3), characterized in that, It includes a coagulation reaction tank (17) and a purification reaction tank (23). The water inlet end of the slag-liquid separator (2) is connected to the collecting tank (1), the water outlet end of the slag-liquid separator (2) is connected to the regulating tank (3), the coagulation reaction tank (17) is connected to the regulating tank (3) through a water inlet pipe (5), a chemical dosing mechanism is arranged on the coagulation reaction tank (17), the chemical dosing mechanism is used for dosing the coagulation reaction tank (17), the purification reaction tank (23) and the coagulation reaction tank (17) are connected through a second connecting pipe (21), the purification reaction tank (23) is used for carrying out an ozone oxidation reaction with sewage, a reaction cylinder (231) is arranged in the purification reaction tank (23), a water outlet pipe (24) is arranged at one end of the purification reaction tank (23), a sludge discharge pipe (25) is arranged at the bottom of the purification reaction tank (23), one end of the sludge discharge pipe (25) is connected to the collecting tank (1), and a mud baffle (232) is arranged below the reaction cylinder (231). A sewage discharge pipe (20) is arranged at the bottom of the coagulation reaction tank (17), an ozone generator (22) is arranged on the purification reaction tank (23), and the output end (212) of the second connecting pipe (21) is located above the reaction cylinder (231). The chemical dosing mechanism includes a chemical outlet tank (15), the chemical outlet tank (15) is arranged on the coagulation reaction tank (17) through a chemical outlet pipe (152), a chemical outlet rod (161) is rotatably arranged on the chemical outlet pipe (152), the diameter of the chemical outlet rod (161) matches the width of the chemical outlet pipe (152), and a plurality of grooves are arranged around the chemical outlet rod (161). The chemical dosing mechanism includes a synthesis tank (12) and a turntable (14). A bracket (122) is arranged on the chemical outlet tank (15), the synthesis tank (12) is arranged on the bracket (122), a first outlet (123) is arranged through the lower end of the synthesis tank (12), the turntable (14) is rotatably arranged on the chemical outlet tank (15), and a second outlet (141) is arranged on the turntable (14). The first outlet (123) is matched with the second outlet (141). The chemical dosing mechanism includes two first connecting pipes (9) and a blocking plate (10). The two first connecting pipes (9) are respectively arranged on both sides of the synthesis tank (12), a flocculant tank (7) and a coagulant aid tank (8) are respectively arranged on the two first connecting pipes (9), and the blocking plate (10) is slidably arranged at the side end of the first connecting pipe (9). A retraction device is provided between the first connecting pipe (9) and the baffle plate (10). The retraction device includes a first straight rod (11) and a second straight rod (111). One end of the first straight rod (11) is hinged to the outside of the first connecting pipe (9). A connecting seat (113) is provided at the lower end of the second straight rod (111). The connecting seat (113) is hinged to the baffle plate (10). The second straight rod (111) is slidably connected within the first straight rod (11). A spring (112) is provided on the second straight rod (111). The lower end of the first straight rod (11) is connected to the connecting seat (113) through the spring (112). A scale (121) is provided on the synthesis tank (12).

2. The integrated machine for treating small-scale pig farm sewage according to claim 1, wherein: A connecting plate (19) is rotatably provided within the coagulation reaction tank (17). Stirring rods (191) are provided on both sides of the lower end of the connecting plate (19). Stirring paddles (192) are provided on the stirring rods (191).

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