CN207918523U - A kind of IC anaerobic towers - Google Patents

Abstract

The utility model discloses an IC anaerobic tower. The water inlet pipe, the housing is provided with a water outlet, the three-phase separator and the gas-liquid separator are connected with a riser pipe for the rise of the biogas, and the housing is provided with a water distribution component leading from the gas-liquid separator The muddy water downcomer, the gas-liquid separator is provided with a biogas outlet, the inner bottom wall of the housing is provided with an annular collection tank, and the outer bottom of the housing is provided with a sewage pipe, and the sewage pipe is connected with the collection The slots are connected. The IC anaerobic tower has high efficiency of discharging calcified mud, low maintenance cost, and good treatment effect on wastewater. The IC anaerobic tower can treat papermaking wastewater to meet the discharge requirements, and the IC anaerobic tower does not need to be equipped with a separate energy source, which is energy-saving and environmentally friendly.

Description

An IC anaerobic tower

technical field

The utility model relates to the field of organic sewage treatment, in particular to an IC anaerobic tower.

Background technique

IC (internal circulation) anaerobic tower is an internal circulation anaerobic reactor, which is used for the treatment of organic wastewater. The organic wastewater circulates in the IC anaerobic tower, and anaerobic microorganisms are placed in the IC anaerobic tower. The anaerobic microorganisms degrade the organic matter in the organic wastewater into biogas and inorganic matter, so as to achieve the standard discharge of wastewater. The IC anaerobic tower is widely used Used in the paper industry.

The Chinese utility model patent with the existing authorized announcement number CN202099166U discloses an IC anaerobic reactor, including a shell, in which a water distributor, a water inlet pipe leading to the water distributor, a three-phase Separator and water outlet, the water distributor is used to input water into the shell, the top of the shell is provided with a gas-liquid separator, the three-phase separator and the gas-liquid separator are connected with a rising pipe for biogas to rise, and the center of the shell is set There is a muddy water downpipe leading from the gas-liquid separator to the water distributor. The top of the gas-liquid separator is connected to a biogas outlet, and the bottom of the shell is equipped with a sewage outlet. The dead microorganisms in the IC anaerobic reactor will calcify to form calcified mud. When there is a lot of calcified mud deposited, the calcified mud can be discharged from the sewage outlet. However, the sewage outlet of the IC anaerobic reactor is arranged horizontally, and the efficiency of discharging calcified mud is low.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide an IC anaerobic tower, which has a high efficiency of discharging calcified mud.

The above-mentioned technical purpose of the utility model is achieved through the following technical solutions: an IC anaerobic tower, including a housing, in which a water distribution assembly, a three-phase separator and a gas-liquid separator are arranged from bottom to top, the The housing is provided with a water inlet pipe leading to the water distribution assembly, and the housing is provided with a water outlet. The three-phase separator and the gas-liquid separator are connected with a riser pipe for rising the biogas. The housing is equipped with There is a muddy water downpipe leading from the gas-liquid separator to the water distribution assembly, the gas-liquid separator is provided with a biogas outlet, the inner bottom wall of the housing is provided with an annular collection tank, and the outer bottom of the housing is A sewage discharge pipe is provided, and the sewage discharge pipe communicates with the collection tank.

Through the above technical scheme, before the treatment, anaerobic microorganisms used to treat organic wastewater are placed in the casing, and then the pump is used to feed the wastewater into the water inlet pipe. The wastewater enters the casing and reacts with the anaerobic microorganisms. The anaerobic microorganisms decompose the organic matter and produce biogas. The sludge in the waste water, the biogas generated by the reaction and the water flow upward through the three-phase separator for separation, most of the sludge stays below the three-phase separator, the purified water is discharged from the water outlet, and the biogas enters the gas-liquid through the riser pipe The separator is then discharged from the biogas outlet, and at the same time, some muddy water diffuses into the gas-liquid separator through the gap between the three-phase separators. The muddy water settles in the gas-liquid separator and is discharged from the muddy water downcomer, and is flushed out from the water distribution assembly. Under the joint action of the incoming waste water, a rising water flow is formed in the shell, stirring the waste water in the shell, thus forming Internal circulation, so that wastewater can better contact with anaerobic microorganisms. The dead anaerobic microorganisms in the wastewater will calcify to form calcified mud. When there is a lot of calcified mud deposited, the sewage pipe can be connected to discharge the calcified mud and solid waste in the shell from the sewage pipe. Since the water flow direction at the bottom of the shell is diffused from the center to the surroundings, most of the calcified mud can move with the water flow to the vicinity of the inner wall of the shell, and deposit into the collection tank due to gravity, so the calcified mud can reliably enter the sewage pipe And discharge the shell, the efficiency of this IC anaerobic tower to discharge calcified mud is high.

Preferably, the inner ring wall of the collection tank is a guide surface, the guide surface is inclined, and the calcified mud in the housing can slide down to the bottom of the collection tank along the guide surface.

Through the above technical proposal, the calcified mud in the casing can slide down to the bottom of the collection tank along the guide surface, and the guide surface plays a role of converging the calcified mud, making the calcified mud more concentrated and cleaning the calcified mud more thoroughly.

Preferably, the blowdown pipe is provided with a blowdown valve for opening and closing the blowdown pipe.

Through the above technical scheme, when the calcified mud needs to be cleaned, the sewage valve is opened, and the sewage pipe is conducted; when the sewage valve is closed after cleaning, the sewage pipe is blocked, which is convenient to use.

Preferably, the water distribution assembly includes a first water distributor, the first water distributor includes a water distribution main pipe, several water distribution branch pipes communicated with the water distribution main pipe, the water distribution main pipe communicates with the water inlet pipe, and several water distribution pipes communicate with the water inlet pipe. The outlet ends of the water distribution branch pipes are distributed in a circle relative to the axis of the casing.

Through the above technical scheme, several water distribution branch pipes disperse the water flow into the shell, the waste water in the shell flows more evenly, and there are less stagnant water areas, so that the waste water can better contact with anaerobic microorganisms, and the waste water treatment effect is better.

Preferably, the outlet ends of several of the water distribution branch pipes face the tangential direction of the first water distributor, and the waste water is flushed out from the several of the water distribution branch pipes and rotates in the same pointer direction.

Through the above technical scheme, the waste water sprayed from the water distribution branch pipe rotates in the casing, which has a better stirring effect on the waste water.

Preferably, the water distribution component includes a second water distributor, the second water distributor communicates with the muddy water downpipe, the second water distributor is provided with a plurality of muddy water outlets, and the plurality of muddy water outlets are opposite to each other. The axis of the shell is distributed in a circle.

Through the above technical scheme, multiple muddy water outlets spray muddy water in a dispersed manner, which has a better stirring effect on the wastewater in the shell, and less stagnant water areas, so that the wastewater can better contact with anaerobic microorganisms, and the wastewater treatment effect is better.

Preferably, several of the muddy water outlets face the tangential direction of the second water distributor, and the muddy water flows out from the several muddy water outlets and rotates in the same pointer direction.

Through the above technical proposal, the muddy water ejected from the muddy water outlet rotates in the casing, which has a good stirring effect on the waste water.

Preferably, the number of the three-phase separators is two groups, and the two groups of three-phase separators are located at different heights in the casing.

Through the above-mentioned technical scheme, the two sets of three-phase separators provided can play the role of secondary separation, so that the gas, liquid and solid in the shell can be separated with higher purity, and the treatment effect on waste water is better.

In summary, compared with the prior art, the utility model has the following beneficial effects: the IC anaerobic tower has higher efficiency in discharging calcified mud, lower maintenance cost, and better treatment effect on wastewater.

Description of drawings

Figure 1 is a system diagram of the IC anaerobic tower, which is mainly used to demonstrate the working principle of the IC anaerobic tower;

Fig. 2 is a partial perspective view of the IC anaerobic tower, mainly highlighting the structure of the water distribution component in the embodiment;

Fig. 3 is a sectional view of A-A in Fig. 2, mainly highlighting the structure of the collecting tank in the embodiment.

Reference signs: 1. Shell; 2. Water distribution component; 3. Three-phase separator; 4. Gas-liquid separator; 11. Water inlet pipe; 12. Water outlet; 13. Collection tank; 131. Guide surface; 14 , sewage pipe; 141, sewage valve; 21, cone plate; 22, the first water distributor; 23, the second water distributor; 15, circulation gap; 221, water distribution main pipe; 222, water distribution branch pipe; 231, muddy water Import; 232, muddy water outlet; 31, rising pipe; 41, muddy water downpipe; 42, biogas outlet.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

This specific embodiment is only an explanation of the utility model, and it is not a limitation of the utility model. Those skilled in the art can make modifications to the embodiment without creative contribution according to needs after reading this specification, but as long as they are within the utility model All new claims are protected by patent law.

As shown in FIG. 1 , an IC anaerobic tower includes a cylindrical shell 1 , and the inside of the shell 1 is hollow. The casing 1 is provided with a water distribution assembly 2, a three-phase separator 3 and a gas-liquid separator 4 from bottom to top. The casing 1 is provided with a water inlet pipe 11 leading to the water distribution assembly 2. The top of the side wall of the casing 1 A water outlet 12 is provided. Organic waste water enters the housing 1 from the water inlet pipe 11 and is discharged from the housing 1 through the water outlet 12 after being treated.

As shown in Figures 2 and 3, the inner bottom wall of the housing 1 is provided with an annular collection groove 13, the collection groove 13 is located close to the inner wall of the housing 1, and the inner ring wall of the collection groove 13 is a guide surface 131, The guide surface 131 is arranged inclined upward, and the calcified mud in the housing 1 can slide down to the bottom of the collection tank 13 along the guide surface 131 . The outer bottom of the housing 1 is provided with a number of blowdown pipes 14, the blowdown pipes 14 communicate with the collection tank 13 and the connection is located at the bottom wall of the collection tank 13, each blowdown pipe 14 is respectively provided with a blowdown valve 141, the blowdown valve 141 is used It is used to control the on-off of the corresponding sewage pipe 14.

The water distribution assembly 2 is located at the bottom of the housing 1 , and the water distribution assembly 2 includes a cone plate 21 , a first water distributor 22 located above the cone plate 21 , and a second water distributor 23 located below the cone plate 21 . The cone plate 21 is a conical thin-walled plate, the tip of the cone plate 21 faces upwards, and the opening end faces downwards. The axis of the cone plate 21 coincides with the axis of the housing 1. There is a cycle gap of 15.

The first water distributor 22 includes a water distribution main pipe 221 and several water distribution branch pipes 222 communicated with the water distribution main pipe 221. The water distribution main pipe 221 communicates with the water inlet pipe 11. The water distribution main pipe 221 is annular. The axes of the cone and plate 21 coincide. Several water distribution branch pipes 222 are the same bent pipes, and are symmetrically distributed relative to the axis of the housing 1, and the ends of several water distribution branch pipes 222 away from the water distribution main pipe 221 are all facing the same tangent direction of the first water distributor 22 , that is, the tangential direction of the cone plate 21. The waste water is flushed out from several water distribution branch pipes 222 and rotates counterclockwise, wherein counterclockwise means counterclockwise when viewed from top to bottom.

The second water distributor 23 is a water separator structure with a hollow interior, and the second water distributor 23 is located at the circulation gap 15 and on the axis of the housing 1 . The second water distributor 23 includes a muddy water inlet 231 and a plurality of muddy water outlets 232, the plurality of muddy water outlets 232 are symmetrically distributed relative to the axis of the housing 1, and the plurality of muddy water outlets 232 face the same tangent of the second water distributor 23 direction, the muddy water is flushed out from a plurality of muddy water outlets 232 and then rotates counterclockwise, wherein counterclockwise means counterclockwise when viewed from top to bottom.

As shown in FIG. 1 , there are two groups of three-phase separators 3 , and the two groups of three-phase separators 3 are located at different heights in the casing 1 . The three-phase separator 3 is a thin-walled structure with the upper part smaller and the lower part larger, and the lower end is open. The three-phase separator 3 and the gas-liquid separator 4 are connected with a rising pipe 31 for rising the biogas. After the biogas generated in the housing 1 is collected by the three-phase separator 3, it enters the gas-liquid separator 4 from the riser 31; the liquid can reach the upper part through the gap between the three-phase separators 3 in the same group; most of the solid particles are blocked Below the three-phase separator 3, the three-state separation of gas, liquid and solid is realized. The three-phase separator 3 is a prior art, and will not be repeated here. The set of two sets of three-phase separators 3 can play the role of secondary separation, so that the gas, liquid and solid in the shell 1 can be separated with higher purity, and the treatment effect on waste water is better.

The gas-liquid separator 4 is located on the top of the housing 1 and outside the housing 1. A muddy water downcomer 41 is arranged between the gas-liquid separator 4 and the water distribution assembly 2. One end of the muddy water downcomer 41 is connected to the bottom of the gas-liquid separator 4. The other end of the muddy water downpipe 41 passes through the cone plate 21 and communicates with the muddy water inlet 231 . A biogas outlet 42 is opened on the top of the gas-liquid separator 4 .

Before the treatment, anaerobic microorganisms for treating organic waste water are placed in the shell 1, and then the waste water is introduced into the shell 1 through the water inlet pipe 11 by a pump. The waste water reacts with the anaerobic microorganisms, and the anaerobic microorganisms decompose the organic matter, producing biogas. The sludge in the waste water, the methane produced by the reaction and the water flow upward through the three-phase separator 3 for separation, most of the sludge is left under the three-phase separator 3, the purified water is discharged from the water outlet 12, and the methane passes through the riser 31 into the gas-liquid separator 4, while a part of muddy water diffuses into the gas-liquid separator 4 through the gap between the three-phase separators 3 of the same group. The muddy water settles in the gas-liquid separator 4 and is discharged from the muddy water downcomer 41, and is flushed out from the second water distributor 23. A water flow rotating and rising from the bottom is formed to stir the waste water in the housing 1, thereby forming an internal circulation, so that the waste water can better contact with anaerobic microorganisms, and the waste water treatment effect is better. The IC anaerobic tower can treat papermaking wastewater to meet the discharge requirements, and the IC anaerobic tower does not need to be equipped with a separate energy source, which is energy-saving and environmentally friendly.

The dead anaerobic microorganisms in the wastewater will calcify to form calcified mud. When the calcified mud deposits more, the drain valve 141 can be opened to discharge the calcified mud and solid waste in the housing 1 from the sewage pipe 14 . Since the direction of water flow at the bottom of the housing 1 spreads from the center to the surroundings, most of the calcified mud can move to the vicinity of the inner sidewall of the housing 1 with the water flow, and be deposited in the collection tank 13 due to gravity. The communication position between the sewage pipe 14 and the collecting tank 13 is located at the bottom wall of the collecting tank 13 , so the calcified mud can reliably enter the sewage pipe 14 and be discharged from the casing 1 . The IC anaerobic tower can clean the calcified mud in the shell 1 to a certain extent, prevent the excessive calcified mud in the shell 1 from affecting the processing efficiency of the IC anaerobic tower, and reduce the maintenance cost.

The above descriptions are only exemplary implementations of the present utility model, and are not intended to limit the protection scope of the present utility model, which is determined by the appended claims.

Claims (8)

1. An IC anaerobic tower, comprising a housing (1), the housing (1) is provided with a water distribution assembly (2), a three-phase separator (3) and a gas-liquid separator (4) from bottom to top in the housing (1), The housing (1) is provided with a water inlet pipe (11) leading to the water distribution assembly (2), the housing (1) is provided with a water outlet (12), and the three-phase separator (3) There is a rising pipe (31) for rising the biogas between the gas-liquid separator (4), and the casing (1) is provided with a muddy water descending pipe leading from the gas-liquid separator (4) to the water distribution assembly (2). pipe (41), the gas-liquid separator (4) is provided with a biogas outlet (42), and its feature is that: the inner bottom wall of the housing (1) is provided with an annular collection tank (13), the The outer bottom of the casing (1) is provided with a sewage discharge pipe (14), and the sewage discharge pipe (14) communicates with the collection tank (13). 2. A kind of IC anaerobic tower according to claim 1, it is characterized in that: the inner ring wall of the collection tank (13) is a guide surface (131), and the guide surface (131) is inclined, and the The calcified mud in the casing (1) can slide down to the bottom of the collection tank (13) along the guide surface (131). 3. An IC anaerobic tower according to claim 1 or 2, characterized in that: the blowdown pipe (14) is provided with a blowdown valve (141) for opening and closing the blowdown pipe (14). 4. An IC anaerobic tower according to claim 1, characterized in that: the water distribution component (2) includes a first water distributor (22), and the first water distributor (22) includes a cloth The water main pipe (221), several water distribution branch pipes (222) connected with the water distribution main pipe (221), the water distribution main pipe (221) is connected with the water inlet pipe (11), and the outlets of some of the water distribution branch pipes (222) The ends are distributed circumferentially with respect to the axis of the housing (1). 5. A kind of IC anaerobic tower according to claim 4, it is characterized in that: the outlet ends of several said water distribution branch pipes (222) face the tangential direction of the first water distributor (22), and the waste water flows from several said After the water distribution branch pipe (222) rushes out, it rotates along the same pointer direction. 6. An IC anaerobic tower according to claim 1, characterized in that: the water distribution component (2) includes a second water distributor (23), and the second water distributor (23) is connected with muddy water The downpipe (41) is connected, and the second water distributor (23) is provided with a plurality of muddy water outlets (232), and the plurality of muddy water outlets (232) are circumferentially distributed relative to the axis of the housing (1). 7. A kind of IC anaerobic tower according to claim 6, it is characterized in that: several described muddy water outlets (232) are towards the tangential direction of the second water distributor (23), and muddy water is passed through several described muddy water outlets (232) ) and rotate in the same direction as the pointer. 8. A kind of IC anaerobic tower according to claim 1, is characterized in that: the quantity of described three-phase separator (3) is two groups, and two groups of described three-phase separators (3) are positioned at shell ( 1) at different heights.