Organic wastewater anaerobic fermentation treatment device

Abstract

The utility model relates to the technical field of organic wastewater anaerobic fermentation treatment, in particular to an organic wastewater anaerobic fermentation treatment device. The utility model provides an anaerobic fermentation treatment device for organic wastewater, which can be used for separating water vapor in methane gas, reducing the humidity of the methane gas and improving the purity and heat value of methane. An organic wastewater anaerobic fermentation treatment device comprises an outer barrel, an inner barrel, a first water inlet pipe and the like, the inner barrel is connected into the outer barrel, and the first water inlet pipe is connected to the left side of the upper portion of the outer barrel. Methane gas upwards enters the spiral pipe, the residence time of the methane gas is prolonged through the spiral pipe, cooling treatment is conducted through cold water, water vapor carried out by the methane gas is condensed into liquid water, the liquid water flows back into the inner barrel along the second gas outlet pipe, and then the liquid water is discharged from the second water outlet pipe. The effects of separating the water vapor in the methane gas, reducing the humidity of the methane gas and improving the purity and the heat value of the methane are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of organic wastewater anaerobic fermentation treatment, especially to a kind of organic wastewater anaerobic fermentation treatment device. BACKGROUND

[0002] In the field of organic wastewater anaerobic fermentation treatment, the generation and utilization of methane gas is an important link. As a high-efficiency and clean energy, the purity and calorific value of methane have a crucial impact on the subsequent application effect.

[0003] The existing organic wastewater anaerobic fermentation treatment usually separates the generated methane gas, sludge and treated water through a three-phase separator. However, the methane gas often carries a certain amount of water vapor, which not only reduces the purity and calorific value of methane, but also may cause equipment corrosion or pipeline blockage, seriously affecting the utilization efficiency of methane gas.

[0004] Therefore, it is necessary to design an organic wastewater anaerobic fermentation treatment device that can separate the water vapor in methane gas, reduce the humidity of methane gas and improve the purity and calorific value of methane. SUMMARY

[0005] To overcome the shortcomings of the existing organic wastewater anaerobic fermentation treatment, where methane gas often carries a certain amount of water vapor, which not only reduces the purity and calorific value of methane, but also may cause equipment corrosion or pipeline blockage, seriously affecting the utilization efficiency of methane gas, the utility model provides an organic wastewater anaerobic fermentation treatment device that can separate the water vapor in methane gas, reduce the humidity of methane gas and improve the purity and calorific value of methane.

[0006] An organic wastewater anaerobic fermentation treatment device includes an outer barrel, an inner barrel, a first water inlet pipe, a first water outlet pipe, a second water inlet pipe, a three-phase separator, a second water outlet pipe, a sealing cover, a second gas outlet pipe and a separation assembly. The inner barrel is connected inside the outer barrel. The first water inlet pipe is connected to the left side of the upper part of the outer barrel. The first water outlet pipe is connected to the lower right side of the outer barrel. The second water inlet pipe is connected between the lower left part of the outer barrel and the inner barrel. The three-phase separator is connected to the inner side of the upper part of the inner barrel. The second water outlet pipe is connected between the upper left part of the outer barrel and the inner barrel. The second water outlet pipe is connected to the three-phase separator. The sealing cover is connected between the upper part of the outer barrel and the inner barrel. The second gas outlet pipe is connected to the left part of the sealing cover. The separation assembly, which can separate the water vapor in methane gas, is arranged on the upper side of the second gas outlet pipe.

[0007] Further, the lower part of the second gas outlet pipe is in the shape of a bucket.

[0008] Further, the separation assembly includes a separation cylinder and a spiral pipe. The separation cylinder is connected to the upper side of the second gas outlet pipe. The spiral pipe is connected inside the separation cylinder.

[0009] Further, the feeding pipe is connected between the outer barrel and the middle part of the right part of the inner barrel.

[0010] Further, the motor, bevel gear, first stirring frame and second stirring frame are included, the motor is connected to the right part of the sealing cover, the first stirring frame is rotatably connected to the middle part of the sealing cover, the second stirring frame is rotatably connected to the middle part of the first stirring frame, the bevel gear is connected to the output shaft of the motor, the bevel gears are connected to the upper parts of the first stirring frame and the second stirring frame, and the adjacent two bevel gears are engaged with each other.

[0011] Further, the water inlet and outlet pipe is connected to the front side of the lower part and the left side of the upper part of the separation cylinder.

[0012] The methane gas enters the spiral pipe upward, the residence time of the methane gas is increased through the spiral pipe, the cooling treatment is carried out through the cold water, the water vapor carried out by the methane gas is condensed into liquid water and flows back to the inner barrel along the second gas outlet pipe, and then is discharged from the second water outlet pipe, so that the water vapor in the methane gas can be separated, the humidity of the methane gas is reduced, and the purity and calorific value of the methane are improved.

[0013] 2、 the motor is started, the bevel gears are driven to rotate, the bevel gears are engaged with each other to move, the first stirring frame and the second stirring frame are driven to rotate forward and reverse respectively, the organic wastewater is stirred through the first stirring frame and the second stirring frame, the wastewater and the microorganisms are fully mixed, and the organic wastewater can be stirred, the substrate and the microorganisms are uniformly distributed, and the fermentation efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model.

[0015] Figure 2 It is a sectional three-dimensional structure schematic view of the outer barrel, the inner barrel and other components of the utility model.

[0016] Figure 3 It is a sectional three-dimensional structure schematic view of the sealing cover, the second gas outlet pipe and other components of the utility model.

[0017] Figure 4 It is a three-dimensional structure schematic view of the motor, the bevel gear and other components of the utility model.

[0018] Figure 5 It is a three-dimensional structure schematic view of the separation cylinder, the water inlet and outlet pipe and other components of the utility model.

[0019] Markings in the drawings: 1_ outer barrel, 101_ feeding pipe, 2_ inner barrel, 3_ first water inlet pipe, 4_ first water outlet pipe, 5_ second water inlet pipe, 6_ three-phase separator, 7_ second water outlet pipe, 8_ sealing cover, 9_ second air outlet pipe, 10_ motor, 11_ bevel gear, 12_ first stirring frame, 13_ second stirring frame, 14_ separation cylinder, 15_ water inlet and outlet pipe, 16_ spiral pipe. DETAILED DESCRIPTION

[0020] The preferred technical scheme of the present application is described in detail below with reference to the drawings.

[0021] An organic wastewater anaerobic fermentation treatment device, as shown in the figure, comprises an outer barrel 1, a feeding pipe 101, an inner barrel 2, a first water inlet pipe 3, a first water outlet pipe 4, a second water inlet pipe 5, a three-phase separator 6, a second water outlet pipe 7, a sealing cover 8, a second air outlet pipe 9, and a separation assembly. Figures 1-3 As shown in the figure, the separation assembly comprises a separation cylinder 14 and a spiral pipe 16, the second air outlet pipe 9 is connected with the separation cylinder 14 at the upper side, the separation cylinder 14 is connected with the spiral pipe 16 at the inside, one end of the spiral pipe 16 is communicated with the inner barrel 2, and the other end is communicated with the outside.

[0022] As shown in the figure, the separation assembly comprises a separation cylinder 14 and a spiral pipe 16, the second air outlet pipe 9 is connected with the separation cylinder 14 at the upper side, the separation cylinder 14 is connected with the spiral pipe 16 at the inside, one end of the spiral pipe 16 is communicated with the inner barrel 2, and the other end is communicated with the outside. Figure 1 , Figure 2 and Figure 5 As shown in the figure, the separation assembly comprises a separation cylinder 14 and a spiral pipe 16, the second air outlet pipe 9 is connected with the separation cylinder 14 at the upper side, the separation cylinder 14 is connected with the spiral pipe 16 at the inside, one end of the spiral pipe 16 is communicated with the inner barrel 2, and the other end is communicated with the outside.

[0023] As shown in the figure, the separation assembly comprises a separation cylinder 14 and a spiral pipe 16, the second air outlet pipe 9 is connected with the separation cylinder 14 at the upper side, the separation cylinder 14 is connected with the spiral pipe 16 at the inside, one end of the spiral pipe 16 is communicated with the inner barrel 2, and the other end is communicated with the outside. Figure 1 , Figure 4 and Figure 5 As shown in the figure, the separation assembly comprises a separation cylinder 14 and a spiral pipe 16, the second air outlet pipe 9 is connected with the separation cylinder 14 at the upper side, the separation cylinder 14 is connected with the spiral pipe 16 at the inside, one end of the spiral pipe 16 is communicated with the inner barrel 2, and the other end is communicated with the outside. As shown in the figure, the device further comprises a motor 10, a bevel gear 11, a first stirring frame 12, a second stirring frame 13, and a water inlet and outlet pipe 15, the motor 10 is connected with the sealing cover 8 at the right part, the first stirring frame 12 is rotatably connected with the sealing cover 8 at the middle part, the second stirring frame 13 is rotatably connected with the first stirring frame 12 at the middle part, the bevel gear 11 is connected with the output shaft of the motor 10, the bevel gears 11 are also connected with the first stirring frame 12 and the second stirring frame 13 at the upper part, the adjacent two bevel gears 11 are meshed with each other, the water inlet and outlet pipe 15 is connected with the separation cylinder 14 at the front side of the lower part and the left side of the upper part, the first stirring frame 12 and the second stirring frame 13 rotate coaxially, and the stirring paddles of the first stirring frame 12 and the second stirring frame 13 extend into the inner barrel 2.

[0024] In use of the device, first, the outer barrel 1 is placed in the organic wastewater anaerobic fermentation treatment area, then the organic wastewater is discharged into the inner barrel 2 through the feeding pipe 101, and then the water is discharged into the inner barrel 2 through the second water inlet pipe 5, the concentration of the wastewater is adjusted by adding an appropriate amount of water, then the motor 10 is started to drive the bevel gears 11 to rotate, the bevel gears 11 are meshed with each other to move to drive the first stirring frame 12 and the second stirring frame 13 to rotate forward and reverse respectively, the organic wastewater is stirred by the first stirring frame 12 and the second stirring frame 13, so that the wastewater and the microorganisms are fully mixed, so that the organic wastewater can be stirred, which is convenient for uniform distribution of the substrate and the microorganisms, and improves the fermentation efficiency. In the fermentation process, the water is introduced into the outer barrel 1 and the inner barrel 2 through the first water inlet pipe 3, which provides a suitable temperature in the process of anaerobic fermentation of the organic wastewater, then the cold water is introduced into the separation cylinder 14 through the upper left inlet and outlet pipe 15, the produced methane gas, sludge and treated water are separated by the three-phase separator 6, so that the treated water is discharged through the second water outlet pipe 7, the sludge is precipitated to the bottom of the inner barrel 2, and the methane gas enters the spiral pipe 16 upward, the residence time of the methane gas is increased by the spiral pipe 16, the methane gas is cooled by the cold water, so that the water vapor carried out by the methane gas condenses into liquid water and flows back to the inner barrel 2 along the second gas outlet pipe 9, and then is discharged from the second water outlet pipe 7, so that the water vapor in the methane gas can be separated, the humidity of the methane gas is reduced, the purity and heat value of the methane are improved. After the organic wastewater treatment is completed, the water in the separation cylinder 14 is discharged by opening the front inlet and outlet pipe 15, and then the water between the outer barrel 1 and the inner barrel 2 is discharged by opening the first water outlet pipe 4.

[0025] It should be understood that the above description is only for exemplary purposes and does not mean to limit the present application. Those skilled in the art will understand that the variations of the present application will be included in the scope of the claims herein.

Claims

1. An anaerobic fermentation treatment device for organic wastewater, characterized in that: The utility model provides a methane gas separation device, including outer drum (1), the inside connection of outer drum (1) has inner drum (2), the upper left side of outer drum (1) is connected with first water inlet pipe (3), the lower right side of outer drum (1) is connected with first water outlet pipe (4), and the lower left between outer drum (1) and inner drum (2) is connected with second water inlet pipe (5), the inside upper of inner drum (2) is connected with three -phase separator (6), and the upper left between outer drum (1) and inner drum (2) is connected with second water outlet pipe (7), and second water outlet pipe (7) is connected with three -phase separator (6), and the upper between outer drum (1) and inner drum (2) is connected with sealing cover (8), and the left of sealing cover (8) is connected with second air outlet pipe (9), and the upper side of second air outlet pipe (9) is equipped with the separation assembly that can separate the water vapor in methane gas.

2. The organic wastewater anaerobic fermentation treatment device according to claim 1, characterized in that: The lower part of the second air outlet pipe (9) is in the shape of a bucket.

3. The organic wastewater anaerobic fermentation treatment device according to claim 1, characterized in that: The separation assembly includes a separation cylinder (14) connected to the upper side of the second air outlet pipe (9), a spiral pipe (16) connected inside the separation cylinder (14), one end of the spiral pipe (16) being connected to the inner drum (2) and the other end being connected to the outside.

4. The organic wastewater anaerobic fermentation treatment device according to claim 1, characterized in that: It also includes a feed pipe (101) installed between the right middle part of the outer drum (1) and the inner drum (2).

5. The organic wastewater anaerobic fermentation treatment device according to claim 1, characterized in that: It also includes a motor (10), bevel gears (11), a first stirring frame (12) and a second stirring frame (13), the right part of the sealing cover (8) is connected with the motor (10), the middle part of the sealing cover (8) is rotatably connected with the first stirring frame (12), the middle part of the first stirring frame (12) is rotatably connected with the second stirring frame (13), the first stirring frame (12) and the second stirring frame (13) rotate coaxially, the stirring paddles of the first stirring frame (12) and the second stirring frame (13) extend into the inner drum (2), the output shaft of the motor (10) is connected with the bevel gears (11), the upper parts of the second stirring frame (13) and the first stirring frame (12) are also connected with the bevel gears (11), and the adjacent two bevel gears (11) are meshed with each other.

6. The organic wastewater anaerobic fermentation treatment device according to claim 3, characterized in that: It also includes an inlet and outlet water pipe (15) connected to the front lower part and the left upper part of the separation cylinder (14).

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