Efficient denitrification sewage treatment device

Abstract

The utility model discloses an efficient denitrification sewage treatment device which comprises a treatment tank, the circulating conveying cylinder is coaxially arranged in the treatment tank in a sleeving manner, and a lifting mechanism is axially and rotatably mounted in the circulating conveying cylinder; a plurality of circulating grooves are circumferentially formed in the side walls of the upper part and the lower part of the circulating conveying cylinder; the packing net cylinder is circumferentially distributed on the outer side of the circulating conveying cylinder and is detachably inserted into the treatment tank; the filler net cylinder is filled with anaerobic ammonium oxidation bacteria filler; the electric heating pipe is arranged in an annular cavity between the plurality of filler net cylinders and the treatment tank; and the electric heating pipe is arranged along a spiral path from top to bottom. According to the utility model, the filler can be replaced, so that sewage in the treatment tank is fully mixed up and down, and the proper active temperature of anaerobic ammonium oxidation bacteria can be ensured through heating.

Description

TECHNICAL FIELD

[0001] The utility model relates to water treatment technical field, especially a kind of high-efficiency denitrification sewage treatment device. BACKGROUND

[0002] With the improvement of human living standards and the rapid development of industry, the discharge of sewage is increasing, and water pollution is becoming increasingly serious, so sewage treatment device is needed to treat sewage, anaerobic ammonia oxidation is a new type of biological denitrification technology for sewage treatment, and it is more efficient than traditional biological denitrification. Anaerobic ammonia oxidation bacteria is a kind of bacteria, which can convert ammonia nitrogen in sewage into nitrogen gas through biochemical reaction.

[0003] However, the existing technology in the anaerobic ammonia oxidation treatment of sewage, the packing layer is mostly fixed in the treatment tank, it is not convenient to replace the blocked packing layer, at the same time, the up and down mixing of sewage in the treatment tank is not sufficient, which leads to poor contact between sewage and anaerobic ammonia oxidation bacteria, resulting in poor reaction effect and low water treatment efficiency, and cannot guarantee the suitable activity temperature of anaerobic ammonia oxidation bacteria. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of high-efficiency denitrification sewage treatment device, can realize the replacement of packing, make its sewage in the treatment tank mix fully up and down, and through heating, can guarantee the suitable activity temperature of anaerobic ammonia oxidation bacteria.

[0005] To solve the above technical problems, the utility model provides a kind of high-efficiency denitrification sewage treatment device, including treatment tank, the water inlet and water outlet are equipped on the treatment tank, and further including:

[0006] Circulating conveying cylinder is coaxially sleeved in the treatment tank, and the lifting mechanism for continuously circulating mixing the upper and lower sewage in the treatment tank is installed in the circulating conveying cylinder; wherein a plurality of flow-through grooves are formed in the upper and lower sidewalls of the circulating conveying cylinder;

[0007] The packing net cylinder is circumferentially distributed on the outer side of the circulating conveying cylinder and can be detachably inserted into the treatment tank; the packing net cylinder is filled with high-efficiency denitrification bacteria packing;

[0008] Electric heating pipe is arranged in the annular cavity between a plurality of packing net cylinders and the treatment tank; and the electric heating pipe is arranged along the spiral path from top to bottom.

[0009] Preferably, the lifting mechanism comprises: an agitator shaft, a spiral blade, a driving motor, a driving pulley, a driven pulley and a synchronous belt; the bottom of the circulating conveying cylinder is rotatably connected with the agitator shaft through a bearing seal, the agitator shaft is provided with the spiral blade, the lower end of the agitator shaft is sleeved with the driven pulley, the bottom of the processing tank is provided with the driving motor, the output end of the driving motor is provided with the driving pulley, and the driving pulley and the driven pulley are connected with the synchronous belt.

[0010] Preferably, the agitator shaft is a hollow shaft, a plurality of air injection holes are uniformly arranged on the outer wall of the hollow shaft in the circumferential direction, and the lower end of the hollow shaft is rotatably connected with the output end of the air supply mechanism.

[0011] Preferably, the air supply mechanism comprises: a carbon dioxide air supply machine, an air pump and a conveying pipe; the bottom of the processing tank is provided with the carbon dioxide air supply machine, the output end of the carbon dioxide air supply machine is provided with the air pump, the output end of the air pump is connected with the conveying pipe, and the other end of the conveying pipe is rotatably connected with the lower end of the hollow shaft.

[0012] Preferably, a water inlet is arranged on the upper part of the left side wall of the processing tank, a water outlet is arranged on the lower part of the right side wall, and the water inlet and the water outlet are both provided with electromagnetic valves.

[0013] Preferably, the filler mesh cylinder comprises: a handle, a circular cover plate and a mesh frame cylinder; the bottom boss of the circular cover plate is detachably threadedly connected with the embedded ring plate between the top of the mesh frame cylinder, and the top of the circular cover plate is provided with a handle.

[0014] Preferably, a plurality of plug-in cavities are arranged on the top of the processing tank in the circumferential direction, and the circular cover plate is placed and abuts on the plug-in cavities; that is, the plug-in cavities are stepped holes with large upper holes and small lower holes, the large upper holes are used for accommodating the circular cover plate with large size, and the small lower holes are used for allowing the mesh frame cylinder with small size to pass through.

[0015] Preferably, the electric heating pipe is made of a carbon fiber electric heating pipe.

[0016] Preferably, a temperature sensor is arranged in the processing tank, and a PLC control panel is arranged outside the processing tank.

[0017] Compared with the prior art, the processing tank has the following beneficial effects:

[0018] 1、The upper and lower sewage in the processing tank can be continuously circulated and mixed through the operation of the lifting mechanism, the contact degree of the sewage and the anammox bacteria filler is further improved, and the reaction effect is improved.

[0019] 2. The utility model discloses a filling net cylinder can be detachably inserted in the treatment jar, realize the replacement of filling net cylinder.

[0020] 3. The utility model discloses the layout of the above-mentioned electric heating pipe can heat the sewage, provide a suitable reaction activity temperature for anaerobic ammonia oxidation bacteria filler, and the optimum reaction activity temperature is 30~37 DEG C, and the electric heating pipe is arranged along the spiral path from top to bottom, can improve the area of the heating region, thereby improving the heating efficiency.

[0021] 4. The utility model discloses the carbon dioxide gas supply machine works, produces carbon dioxide gas, transports through the air pump and the conveying pipe, provides carbon dioxide gas for the hollow pipe, because carbon dioxide gas can reduce the oxygen content in the sewage, provides a good anaerobic environment for the sewage reaction. BRIEF DESCRIPTION OF DRAWINGS

[0022] Fig. 1 It is the front view of the efficient denitrification sewage treatment device of the utility model.

[0023] Fig. 2 It is the plan view of the efficient denitrification sewage treatment device of the utility model.

[0024] Fig. 3 It is the A-A section view of the efficient denitrification sewage treatment device of the utility model.

[0025] Fig. 4 It is the B-B section view of the efficient denitrification sewage treatment device of the utility model.

[0026] Fig. 5 It is the internal partial section view of the efficient denitrification sewage treatment device of the utility model.

[0027] In the drawing:

[0028] 1-treatment jar, 2-circulation conveying cylinder, 3-lifting mechanism, 31-stirring shaft, 32-spiral blade, 33-driving motor, 34-driving pulley, 35-driven pulley, 36-synchronous belt, 37-jet hole, 4-flowing groove, 5-filling net cylinder, 51-handle, 52-round cover plate, 53-net frame cylinder, 6-anaerobic ammonia oxidation bacteria filler, 7-electric heating pipe, 8-gas supply mechanism, 81-carbon dioxide gas supply machine, 82-air pump, 83-conveying pipe, 9-water inlet, 10-water outlet, 11-insertion cavity, 12-PLC control panel. DETAILED DESCRIPTION

[0029] The utility model will be further explained in detail below in combination with the drawings and specific embodiments. The advantages and features of the utility model will be more apparent according to the following description. It should be noted that the drawings all adopt very simplified form and all use non-precise proportion, only for the purpose of conveniently and clearly assisting the description of the utility model embodiments.

[0030] As Figs. 1-5 Indicated, the utility model discloses a kind of high-efficiency denitrification sewage treatment devices, comprising:

[0031] Treatment tank 1, water inlet 9 is set in the left side wall upper portion of treatment tank 1, water outlet 10 is set in the right side wall lower portion, and electromagnetic valve is installed on water inlet 9 and water outlet 10;Treatment tank 1's top is also equipped with exhaust port, valve can also be optionally installed on exhaust port.Sewage to be treated enters via water inlet 9, until water level reaches certain liquid level height, the electromagnetic valve of water inlet 9 is closed;And when treatment ends, the electromagnetic valve on water outlet 10 is opened, and it can be discharged;Nitrogen generated in the treatment process is discharged through the exhaust port of top.

[0032] Circulating delivery cylinder 2 is coaxially sleeved in treatment tank 1, and lifting mechanism 3 is rotatably installed in the axial direction in circulating delivery cylinder 2;Wherein a plurality of flow-through grooves 4 are circumferentially set on the upper and lower side walls of circulating delivery cylinder 2;Through the work of lifting mechanism 3, the upper and lower sewage in treatment tank 1 can be continuously circulated and mixed, to further improve the contact degree of sewage and anaerobic ammonia oxidation bacteria filler 6, so as to improve its reaction effect;

[0033] Filler mesh cylinder 5 is circumferentially distributed on the outside of circulating delivery cylinder 2, and can be detachably inserted into treatment tank 1;Realize the disassembly and replacement of filler mesh cylinder 5;Anaerobic ammonia oxidation bacteria filler 6 is filled in filler mesh cylinder 5, and the anaerobic ammonia oxidation bacteria filler is a commonly used filler for denitrification sewage treatment.

[0034] Electric heating pipe 7 is arranged in the annular cavity between a plurality of filler mesh cylinders 5 and treatment tank 1;Through the arrangement of the above-mentioned electric heating pipe 7, the sewage can be heated, and a suitable reaction activity temperature is provided for anaerobic ammonia oxidation bacteria filler 6, such as the optimum reaction activity temperature is 30-37 ℃;And electric heating pipe 7 is arranged along the spiral path from top to bottom, which can improve the area of heating area, thereby improving the heating efficiency.

[0035] Specifically:

[0036] The lifting mechanism 3 comprises: a stirring shaft 31, a helical blade 32, a driving motor 33, a driving pulley 34, a driven pulley 35 and a synchronous belt 36; the bottom of the circulating conveying cylinder 2 is rotatably mounted with the stirring shaft 31 through a bearing seal, the stirring shaft 31 is provided with the helical blade 32, the lower end of the stirring shaft 31 is sleeved with the driven pulley 35, the bottom of the processing tank 1 is mounted with the driving motor 33, the output end of the driving motor 33 is provided with the driving pulley 34, and the driving pulley 34 and the driven pulley 35 are wound with the synchronous belt 36. When the lifting mechanism 3 works, the driving motor 33 is controlled to rotate, the helical blade 32 on the stirring shaft 31 is driven to rotate through the transmission of the synchronous belt 36, the driving pulley 34 and the driven pulley 35, so that the sewage in the lower part of the processing tank 1 is driven to enter the circulating conveying cylinder 2 through the flow-through groove 4 on the lower side of the circulating conveying cylinder 2, is lifted upwards, and flows back to the upper part of the processing tank 1 through the flow-through groove 4 on the upper side of the circulating conveying cylinder 2, so as to realize the circulation and further improve the contact degree of the sewage and the anammox bacteria filler 6.

[0037] The stirring shaft 31 is a hollow shaft, a plurality of air injection holes 37 are uniformly arranged on the outer wall of the hollow shaft in the circumferential direction, and the lower end of the hollow shaft is rotatably connected to the output end of the gas supply mechanism 8. The sewage in the circulating conveying cylinder 2 is continuously injected with gas through the hollow shaft and the air injection holes 37 by the gas supply mechanism 8, so that the sewage is subjected to aeration operation, and the mixing degree of the sewage is further improved.

[0038] The gas supply mechanism 8 comprises: a carbon dioxide gas supply machine 81, a gas pump 82 and a conveying pipe 83; the bottom of the processing tank 1 is mounted with the carbon dioxide gas supply machine 81, the output end of the carbon dioxide gas supply machine 81 is mounted with the gas pump 82, the output end of the gas pump 82 is communicated with the conveying pipe 83, and the other end of the conveying pipe 83 is rotatably connected to the lower end of the hollow shaft. The carbon dioxide gas supply machine 81 is operated to generate carbon dioxide gas, which is conveyed through the gas pump 82 and the conveying pipe 83 to provide carbon dioxide gas for the hollow pipe. Since the carbon dioxide gas can reduce the oxygen content in the sewage, it provides a good anaerobic environment for the sewage reaction, and ensures the reaction effect between the sewage and the anammox bacteria.

[0039] The filler net cylinder 5 comprises: a handle 51, a circular cover plate 52 and a net frame cylinder 53; the bottom boss of the circular cover plate 52 is detachably threadedly connected to the top embedded ring plate between the top of the net frame cylinder 53, and the top of the circular cover plate 52 is provided with the handle 51. When the filler needs to be replaced, the filler net cylinder 5 is taken out by applying force to the handle 51, then the circular cover plate 52 and the net frame cylinder 53 are reversely rotated and detached, and the filler of the net frame cylinder 53 can be replaced.

[0040] The top of the processing tank 1 is provided with a plurality of plug-in cavities 11 in the circumferential direction, the circular cover plate 52 is placed on the plug-in cavities 11 and abuts against the plug-in cavities 11, and the filler net cylinder 5 and the processing tank 1 are quickly placed.

[0041] The electric heating tube 7 is made of carbon fiber electric heating tube, which can improve the heating efficiency.

[0042] The temperature sensor is arranged in the treatment tank 1, so that the temperature of the sewage can be reasonably controlled. The temperature sensor is connected with the PLC control panel 12 and the electric heating tube 7.

[0043] The use method of the utility model comprises the following steps:

[0044] When the gas supply mechanism is arranged, the carbon dioxide gas supply machine 81 and the air pump 82 are first opened, and the carbon dioxide is pumped into the treatment tank 1.

[0045] When the gas supply mechanism is not arranged, the carbon dioxide is pumped into the treatment tank 1.

[0046] The above description is only a description of the preferred embodiment of the utility model, and does not limit the scope of the utility model. Any change or modification made by the ordinary skilled in the art according to the above disclosure is within the protection scope of the claims.

Claims

1. A high-efficiency denitrification wastewater treatment device, comprising a treatment tank (1), wherein the treatment tank (1) is provided with an inlet and an outlet, characterized in that, Also includes: A circulating conveying cylinder (2) is coaxially sleeved inside the treatment tank (1), and a lifting mechanism (3) for continuously circulating and mixing the upper and lower sewage in the treatment tank is rotatably installed inside the circulating conveying cylinder (2); wherein several flow grooves (4) are circumferentially opened on the upper and lower side walls of the circulating conveying cylinder (2); A packing mesh cylinder (5) is circumferentially distributed on the outside of the circulating conveying cylinder (2) and can be detachably inserted into the treatment tank (1); the packing mesh cylinder (5) is filled with anaerobic ammonia oxidizing bacteria packing (6); An electric heating tube (7) is arranged in an annular cavity between several of the packing mesh cylinders (5) and the processing tank (1); and the electric heating tube (7) is arranged along a spiral path from top to bottom.

2. The high-efficiency denitrification wastewater treatment device as described in claim 1, characterized in that, The lifting mechanism (3) includes: a stirring shaft (31), a spiral blade (32), a drive motor (33), a drive pulley (34), a driven pulley (35), and a synchronous belt (36); the bottom of the circulating conveying cylinder (2) is rotatably mounted with the stirring shaft (31) through a bearing seal, the stirring shaft (31) is provided with the spiral blade (32), the lower end of the stirring shaft (31) is fitted with the driven pulley (35), the bottom of the processing tank (1) is mounted with the drive motor (33), the output end of the drive motor (33) is provided with the drive pulley (34), and the synchronous belt (36) is wound between the drive pulley (34) and the driven pulley (35).

3. The high-efficiency denitrification wastewater treatment device as described in claim 2, characterized in that, The stirring shaft (31) is a hollow shaft. The outer wall of the hollow shaft also includes several jet holes (37) evenly opened in the circumference. The lower end of the hollow shaft is sealed and rotatably connected to the output end of the air supply mechanism (8).

4. The high-efficiency denitrification wastewater treatment device as described in claim 3, characterized in that, The gas supply mechanism (8) includes: a carbon dioxide gas supply machine (81), an air pump (82), and a delivery pipe (83); the carbon dioxide gas supply machine (81) is installed at the bottom of the treatment tank (1), the air pump (82) is installed at the output end of the carbon dioxide gas supply machine (81), the output end of the air pump (82) is connected to the delivery pipe (83), and the other end of the delivery pipe (83) is sealed and rotatably connected to the lower end of the hollow shaft.

5. The high-efficiency denitrification wastewater treatment device as described in claim 1, characterized in that, The treatment tank (1) has an inlet (9) on the upper part of the left side wall and an outlet (10) on the lower part of the right side wall, and both the inlet (9) and the outlet (10) are equipped with solenoid valves.

6. The high-efficiency denitrification wastewater treatment device as described in claim 1, characterized in that, The filler mesh cylinder (5) includes: a handle (51), a circular cover plate (52) and a mesh frame cylinder (53); the bottom boss of the circular cover plate (52) and the top ring plate of the mesh frame cylinder (53) are detachably threaded together, and the top of the circular cover plate (52) is provided with a handle (51).

7. The high-efficiency denitrification wastewater treatment device as described in claim 6, characterized in that, The top circumferential opening of the processing tank (1) is provided with a plurality of insertion cavities (11), and the circular cover plate (52) is placed on the insertion cavity (11) to abut against it.

8. The high-efficiency denitrification wastewater treatment device as described in claim 1, characterized in that, The electric heating tube (7) is made of carbon fiber electric heating tube.

9. The high-efficiency denitrification wastewater treatment device according to any one of claims 1 to 8, characterized in that, The processing tank (1) also includes a temperature sensor, and the outside of the processing tank (1) also includes a PLC control panel (12).

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