CN211497100U

CN211497100U - Internal circulation anaerobic tank

Info

Publication number: CN211497100U
Application number: CN201922264334.0U
Authority: CN
Inventors: 丁建南; 邵希豪
Original assignee: Nanchang Zihuan Ecological Science & Technology Co ltd
Current assignee: Jiangxi Qiangsheng Technology Co ltd
Priority date: 2019-12-16
Filing date: 2019-12-16
Publication date: 2020-09-15
Anticipated expiration: 2029-12-16

Abstract

The utility model discloses an internal circulation anaerobic tank, which relates to the technical field of organic wastewater anaerobic treatment devices and comprises a reaction chamber, an overflow chamber, an air guide plate, a water distributor and a water inlet pipe, the device comprises a backflow pipe, a water outlet pipe, a lifting pipe, a methane pipe and a gas-liquid separator, wherein the lower end of an overflow chamber is fixed at the upper end of a reaction chamber, the lower end of the overflow chamber is open, the gas-liquid separator is fixed at the upper end of the overflow chamber, a partition plate is arranged between the backflow pipe and the overflow chamber, the water inlet end of the backflow pipe is connected with a through hole of the partition plate, the water outlet end of the backflow pipe is connected with a water distributor, the water outlet end of a water inlet pipe is connected with the water distributor, the air inlet end of the methane pipe is positioned in the gas-liquid separator, the lifting pipe is fixed on the outer surface of the overflow chamber, the water. The utility model is characterized in that the structure is simple and the manufacturing cost is low.

Description

Internal circulation anaerobic tank

Technical Field

The utility model relates to the technical field of organic wastewater anaerobic treatment devices, in particular to an internal circulation anaerobic tank.

Background

The device for anaerobic treatment of organic wastewater mainly comprises a full-mixing anaerobic tank, a plug-flow anaerobic reactor, an up-flow anaerobic sludge bed reactor, an internal circulation anaerobic reactor and the like, wherein the full-mixing anaerobic tank has simple structure, low cost, convenient operation and low operation cost, but has weaker mass transfer effect, thus leading to lower volume load and lower treatment efficiency; the upflow anaerobic sludge blanket reactor is provided with the three-phase separator, so that the contradiction between the mass transfer effect and the sludge loss is better relieved, and the volume load and the treatment efficiency of the reactor are greatly improved; on the basis, the internal circulation anaerobic reactor is additionally provided with an internal circulation device to further strengthen the mass transfer effect, thereby becoming the anaerobic reactor with the highest treatment efficiency. However, both the upflow anaerobic sludge blanket reactor and the internal circulation anaerobic reactor relate to a three-phase separator with a complex structure, and the construction difficulty and the construction cost are high, so that the popularization and the application of the high-efficiency anaerobic reactor are limited to a certain extent.

Therefore, there is a high demand for a new anaerobic reactor in the market to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an inner loop anaerobic jar for solve the technical problem who exists among the above-mentioned prior art, need not set up reacting chamber and three-phase separator, simplify the structure, thereby reduce the cost, simultaneously through the synergism of inner loop device and air guide plate, strengthened the mass transfer effect, avoided the excessive loss of mud, thereby can improve treatment effeciency.

In order to achieve the above object, the utility model provides a following scheme:

the utility model discloses an internal circulation anaerobic tank, which comprises a reaction chamber, an overflow chamber, a water distributor, a water inlet pipe, a backflow pipe, a water outlet pipe, a riser, a biogas pipe and a gas-liquid separator, wherein the lower end of the overflow chamber is fixed at the upper end of the reaction chamber, the lower end of the overflow chamber is opened, the lower end of the overflow chamber is positioned in the reaction chamber, the gas-liquid separator is fixed at the upper end of the overflow chamber, a clapboard is arranged between the upper end of the overflow chamber and the upper end of the overflow chamber, a through hole is arranged on the clapboard, the water inlet end of the backflow pipe is connected with the through hole on the clapboard, a gas guide plate is fixed on the backflow pipe and positioned below the lower end of the overflow chamber, the water outlet end of the backflow pipe is connected with the water distributor which is fixed in the reaction chamber, the water inlet pipe, the water distributor is connected with the water outlet end of the water inlet pipe, the methane pipe penetrates through the gas-liquid separator, the gas inlet end of the methane pipe is located in the gas-liquid separator, the gas outlet end of the methane pipe is communicated with the methane collecting device, the lifting pipe is fixed on the outer surface of the overflow chamber, the water inlet end of the lifting pipe is located in the reaction chamber, the water outlet end of the lifting pipe is communicated with the gas-liquid separator, the water outlet pipe penetrates through the overflow chamber, the water inlet end of the water outlet pipe is located in the overflow chamber, and the water outlet end of the water outlet pipe is connected with the wastewater collecting device.

Preferably, the air guide plate is umbrella-shaped, the return pipe penetrates through the air guide plate, the air guide plate and the return pipe are coaxial, and the diameter of the air guide plate is gradually increased from top to bottom.

Preferably, the reaction chamber further comprises a first bracket, the lower end of the first bracket is fixed on the upper surface of the gas guide plate, and the upper end of the first bracket is fixed on the top of the reaction chamber.

Preferably, the water outlet nozzle of the water distributor faces downwards vertically.

Preferably, the reaction chamber further comprises a second bracket, wherein the upper end of the second bracket is fixed on the lower surface of the water distributor, and the lower end of the second bracket is fixed on the bottom of the reaction chamber.

Preferably, the number of the risers is two, and the two risers are symmetrical about the axis of the overflow chamber.

Preferably, the reaction chamber includes drum portion and round platform portion, the lower surface of round platform portion is fixed in the upper surface of drum portion, the lower surface diameter of round platform portion with the internal diameter of drum portion equals, round platform portion with the same axle center of drum portion, round platform portion reduces from bottom to top diameter gradually, the upper surface of round platform portion has the perforation, the lower extreme of overflow chamber with the inlet end of riser all passes perforation and relatively fixed.

The utility model discloses for prior art gain following technological effect:

the utility model discloses inner loop anaerobic jar does not have the three-phase separator, compares with traditional inner loop anaerobic reactor, and inner structure is greatly simplified, can save a large amount of building materials to showing and reducing the construction degree of difficulty, shortening the construction cycle, reducing construction and running cost by a wide margin. The utility model discloses an internal circulation device and air guide's concerted action have strengthened the mass transfer effect in the reacting chamber greatly, have avoided activated sludge's excessive loss simultaneously again, compare with the traditional full-mixing formula anaerobic jar, and volume load and treatment effeciency have obtained very big promotion, still have low-cost efficient characteristics concurrently.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view of the structure of an internal circulation anaerobic tank according to the present embodiment;

in the figure: 1-water inlet pipe; 2-a water distributor; 3-a reaction chamber; 4-air guide plate; 5-an overflow chamber; 6-a riser; 7-gas-liquid separator; 8-a biogas pipe; 9-a return pipe; and 10-water outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

As shown in fig. 1, the present embodiment provides an internal circulation anaerobic tank, which includes a reaction chamber 3, an overflow chamber 5, a water distributor 2, a water inlet pipe 1, a return pipe 9, a water outlet pipe 10, a gas guide plate 4, a riser pipe 6, a biogas pipe 8, and a gas-liquid separator 7. The lower end of the overflow chamber 5 is fixed at the upper end of the reaction chamber 3, the lower end of the overflow chamber 5 is opened, the lower end of the overflow chamber 5 is positioned in the reaction chamber 3, and the overflow chamber 5 is communicated with the reaction chamber 3 through the lower end opening. The gas-liquid separator 7 is fixed on the upper end of the overflow chamber 5, a clapboard is arranged between the overflow chamber 5 and the clapboard, the overflow chamber 5 and the clapboard are designed into a whole, a through hole is arranged in the center of the clapboard, the water inlet end of the return pipe 9 is connected with the through hole in the center of the clapboard, the return pipe 9 is communicated with the gas-liquid separator 7 through the through hole, and the liquid separated from the gas-liquid separator 7 flows out through the return pipe 9. The air guide plate 4 is fixed on the return pipe 9, and the air guide plate 4 is positioned below the lower end of the overflow chamber 5. The gas guide plate 4 is made of a sealed and airtight material, the gas guide plate 4 has the function of preventing methane in the reaction chamber from directly entering the overflow chamber 5, the methane rises from the periphery of the gas guide plate 4, when reaching the top of the reaction chamber 3, the methane enters the lifting pipe 6 along with liquid through the water inlet end of the lifting pipe 6 arranged at the position, under the action of the rising thrust of the methane, the liquid carrying the methane quickly rises along the lifting pipe 6 and is finally sprayed out from the water outlet end of the lifting pipe 6 arranged in the gas-liquid separator 7, gas-liquid separation is completed at the position, the liquid returns to the reaction chamber 3 through the return pipe 9, and the methane enters the methane collecting device through the methane pipe 8 arranged at the top of the gas-liquid separator 7. The air guide plate 4 can effectively avoid disturbance of the rising methane on the liquid in the overflow chamber 5, so that the activated sludge entering the overflow chamber 5 along with the water flow is precipitated and returns to the reaction chamber 3, thereby not only improving the quality of the water outlet of the reactor, but also improving the treatment efficiency of the reaction chamber 3 by reducing the loss of the activated sludge. The water outlet end of the return pipe 9 is connected with the water distributor 2, the liquid in the gas-liquid separator 7 returns to the water distributor 2 along the return pipe 9, and the water distributor 2 is fixed in the reaction chamber 3. The inlet tube 1 passes through the reaction chamber 3, and the end connection water supply installation that intakes of inlet tube 1, the play water end connection water-locator 2 of inlet tube 1, the water supply installation in this embodiment is the water pipe for with inlet tube and waste water place container intercommunication, the suitable water supply installation is selected according to actual conditions in this field, as long as can fill the required waste water of reaction into inlet tube 1 can. The biogas pipe 8 passes through the gas-liquid separator 7, the gas inlet end of the biogas pipe 8 is positioned in the gas-liquid separator 7, the gas outlet end of the biogas pipe 8 is communicated with the biogas collecting device, the biogas separated in the gas-liquid separator 7 can flow out of the biogas pipe 8, the biogas collecting device is arranged at the outlet end of the biogas pipe 8, and the biogas collecting device is a biogas tank in the embodiment, so that the danger caused by biogas leakage is prevented. The riser 6 is fixed on the outer surface of the overflow chamber 5, the water inlet end of the riser 6 is positioned in the reaction chamber, the water outlet end of the riser 6 is communicated with the gas-liquid separator 7, the riser 6 brings the biogas generated in the reaction chamber 3 and part of the wastewater into the gas-liquid separator 7, the riser 6 can be the riser 6 which can be purchased in the market, and the actual size of the riser 6 can be adjusted according to actual needs. The outlet pipe 10 passes through the overflow chamber 5, and the end of intaking of outlet pipe 10 is located the overflow chamber 5, and the play water end of outlet pipe 10 connects waste water collection device, and waste water collection device in this embodiment is the water tank, and when the waste water volume was too much, the skilled person can also trade the water tank for the wastewater disposal basin according to how much of waste water volume. When the liquid level height of the waste water reaches a preset height, the waste water flows out of the water outlet pipe 10, and a person skilled in the art can adjust the setting height of the water outlet pipe 10 according to actual needs.

When the device is used, the water supply device supplies water to the water inlet pipe 1, the water inlet pipe 1 guides the wastewater into the water distributor 2, and the water distributor 2 uniformly sprays the wastewater into the reaction chamber 3. The waste water located in the reaction chamber 3 is subjected to anaerobic digestion. Along with the anaerobic digestion reaction, the wastewater slowly moves from bottom to top in the reaction chamber 3, and the biogas carrying the wastewater passes through the periphery of the gas guide plate 4, so that the biogas stably enters the lifting pipe 6, and turbulence is avoided. The water flow carrying the methane enters from the water inlet end of the lifting pipe 6 under the pushing of the gas, and then flows to the gas-liquid separator 7 from the water outlet end of the lifting pipe 6 to be subjected to gas-liquid separation. The biogas separated in the gas-liquid separator 7 flows out from a biogas pipe 8 arranged at the top of the gas-liquid separator 7 and is collected by a biogas collecting device. The liquid separated in the gas-liquid separator 7 returns to the water distributor 2 through a return pipe 9 and enters the anaerobic digestion process again. After a set hydraulic retention time, the treated wastewater is discharged through the water outlet pipe 10.

Furthermore, the air guide plate 4 is umbrella-shaped, the return pipe 9 penetrates through the air guide plate 4, the air guide plate 4 and the return pipe 9 are coaxial, and the diameter of the air guide plate 4 is gradually increased from top to bottom. The arrangement can better prevent the methane from directly entering the overflow chamber 5, the diameter of the lower end of the air guide plate 4 is not less than the diameter of the opening of the lower end of the overflow chamber 5, and thus the methane passing around the air guide plate 4 continuously floats upwards and then flows out of the lifting pipe 6 around the inner overflow chamber 5.

In order to fix the gas guide plate 4, the reactor further comprises a first bracket, the lower end of the first bracket is fixed on the upper surface of the gas guide plate 4, and the upper end of the first bracket is fixed on the top of the reaction chamber 3. The specific structure of the first support can be set by those skilled in the art according to practical situations as long as the relative fixation of the gas guide plate 4 and the reaction chamber 3 can be realized.

The water distributor 2 is used for filling wastewater into the reaction chamber 3, and the water outlet nozzle of the water distributor 2 faces downwards vertically in the embodiment. The purpose that sets up like this is that vertical downward spun waste water plays the technological effect of a vortex to make inlet tube 1, back flow 9 and the abundant mixture of waste water originally of reacting chamber 3.

Further, the reaction device also comprises a second bracket, the upper end of the second bracket is fixed on the lower surface of the water distributor 2, and the lower end of the second bracket is fixed on the bottom of the reaction chamber 3. Specifically, the second bracket is an annular sleeve in this embodiment, and a person skilled in the art can adjust the specific shape of the second bracket according to actual needs as long as the water distributor 2 can be fixed.

In this embodiment, there are two risers 6, and the two risers 6 are symmetrical with respect to the axis of the overflow chamber 5. The person skilled in the art can increase the number of risers 6 according to the actual need, thereby increasing the efficiency of biogas collection.

Specifically, in the present embodiment, the reaction chamber 3 includes a cylindrical portion and a circular truncated cone portion, a lower surface of the circular truncated cone portion is fixed to an upper surface of the cylindrical portion, a diameter of the lower surface of the circular truncated cone portion is equal to an inner diameter of the cylindrical portion, the circular truncated cone portion and the cylindrical portion are coaxial, a diameter of the circular truncated cone portion gradually decreases from bottom to top, an upper surface of the circular truncated cone portion has a through hole, and a lower end of the overflow chamber 5 and a water inlet end of the riser 6 both pass through the through hole and are relatively fixed. By means of a constriction, the gas or liquid can be collected more quickly in the riser 6 or overflow chamber 5.

The principle and the implementation mode of the present invention are explained by applying specific examples in the present specification, and the above descriptions of the examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.

Claims

1. An inner loop anaerobic jar which characterized in that: the device comprises a reaction chamber, an overflow chamber, a water distributor, a water inlet pipe, a backflow pipe, a water outlet pipe, a riser, a gas guide plate, a biogas pipe and a gas-liquid separator, wherein the lower end of the overflow chamber is fixed at the upper end of the reaction chamber, the lower end of the overflow chamber is provided with an opening, the lower end of the overflow chamber is positioned in the reaction chamber, the gas-liquid separator is fixed at the upper end of the overflow chamber, a partition plate is arranged between the overflow chamber and the reaction chamber, the partition plate is provided with a through hole, the water inlet end of the backflow pipe is connected with the through hole on the partition plate, the water outlet end of the backflow pipe is connected with the water distributor, the gas guide plate is fixed on the backflow pipe and is positioned below the lower end of the overflow chamber, the water distributor is fixed in the reaction chamber, the water inlet pipe penetrates through, the biogas pipe penetrates through the gas-liquid separator, the gas inlet end of the biogas pipe is positioned in the gas-liquid separator, the gas outlet end of the biogas pipe is communicated with the biogas collecting device, the lifting pipe is fixed on the outer surface of the overflow chamber, the water inlet end of the lifting pipe is positioned in the reaction chamber, the water outlet end of the lifting pipe is communicated with the gas-liquid separator, the water outlet pipe penetrates through the overflow chamber, the water inlet end of the water outlet pipe is positioned in the overflow chamber, and the water outlet end of the water outlet pipe is connected with the wastewater collecting device.

2. The internal circulation anaerobic tank of claim 1, wherein: the air guide plate is umbrella-shaped, the backflow pipe penetrates through the air guide plate, the air guide plate and the backflow pipe are coaxial, and the diameter of the air guide plate gradually increases from top to bottom.

3. The internal circulation anaerobic tank of claim 1, wherein: the reaction chamber is characterized by further comprising a first support, the lower end of the first support is fixed on the upper surface of the gas guide plate, and the upper end of the first support is fixed on the top of the reaction chamber.

4. The internal circulation anaerobic tank of claim 1, wherein: and a water outlet nozzle of the water distributor faces downwards vertically.

5. The internal circulation anaerobic tank of claim 1, wherein: the reaction chamber is characterized by further comprising a second support, the upper end of the second support is fixed to the lower surface of the water distributor, and the lower end of the second support is fixed to the bottom of the reaction chamber.

6. The internal circulation anaerobic tank of claim 1, wherein: the number of the lifting pipes is two, and the two lifting pipes are symmetrical about the axis of the overflow chamber.

7. The internal circulation anaerobic tank of claim 1, wherein: the reacting chamber includes drum portion and round platform portion, the lower surface of round platform portion is fixed in the upper surface of drum portion, the lower surface diameter of round platform portion with the internal diameter of drum portion equals, round platform portion with the same axle center of drum portion, round platform portion reduces by the diameter from bottom to top gradually, the upper surface of round platform portion has the perforation, the lower extreme of overflow room with the end of intaking of riser all passes perforation and relatively fixed.