Intermittent water feeding hydrolysis acidification pool

Abstract

The utility model belongs to the technical field of sewage treatment, and particularly relates to hydrolytic acidification equipment, in particular to an intermittent water feeding hydrolytic acidification pool which comprises a pool body, the partition plate is arranged in the tank body and is used for dividing the tank body into a stirring cavity and a precipitation cavity; the submersible stirrer is arranged at the bottom of the stirring cavity; the water inlet assembly is communicated with the stirring cavity and is used for introducing wastewater into the tank body; the drainage assembly is communicated with the precipitation cavity and is used for discharging the hydrolyzed and acidified wastewater out of the tank body. The submersible stirrer is arranged to ensure that wastewater and sludge are fully mixed, and the partition plate is arranged to divide the tank body into the stirring cavity and the precipitation cavity with the lower parts communicated, so that the flowing of liquid at the upper part of the tank body is reduced, the precipitation of the wastewater is accelerated, and the quantity of sludge brought out when the wastewater is discharged is reduced; and a sedimentation tank does not need to be independently arranged to settle the discharged wastewater, so that the overall occupied area of the wastewater treatment system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewage treatment technical field, concretely relates to a hydrolytic acidification equipment, especially to a intermittent water inflow hydrolytic acidification pool. BACKGROUND

[0002] The hydrolytic acidification pool is a sewage treatment technology, mainly used for converting macromolecular organic matter into small molecular organic matter to improve the biodegradability of wastewater.

[0003] The hydrolytic acidification pool in the related art can be divided into upflow type and complete mixing type. In use, it is found that the upflow type hydrolytic acidification pool is through the bottom water distributor to enter water and discharge water in the upper layer, and the sludge loss amount is small by mixing through hydraulic stirring, but the mixing efficiency is too low; the complete mixing type hydrolytic acidification pool is mixed by the submersible mixer, the mixing efficiency is high, the hydrolytic acidification reaction efficiency is high, but the sludge loss amount of the effluent is large.

[0004] Therefore, how to provide the mixing efficiency while reducing the loss of sludge is a technical problem to be solved at present.

[0005] It should be noted that the above information disclosed in the background section of the present application is only used to understand the background technology of the present application, and therefore, the above description is not considered to constitute the information of the prior art. CONTENT OF THE UTILITY MODEL

[0006] The present application provides at least a kind of intermittent water inflow hydrolytic acidification pool.

[0007] In a first aspect, the present application provides a hydrolytic acidification pool, comprising:

[0008] A pool body is filled with sludge;

[0009] A partition is arranged in the pool body and is used to separate the pool body into a stirring cavity and a sedimentation cavity;

[0010] The stirring cavity is in communication with the bottom of the sedimentation cavity;

[0011] A submersible mixer is arranged at the bottom of the stirring cavity and is used to mix wastewater and sludge;

[0012] A water inlet assembly is in communication with the stirring cavity and is used to pass wastewater into the pool body;

[0013] A water outlet assembly is in communication with the sedimentation cavity and is used to discharge the hydrolytic acidification wastewater out of the pool body.

[0014] In an optional embodiment, the distance between the bottom of the partition and the pool bottom of the pool body is H1;

[0015] The height of the pool body is H2;

[0016] H1≥0.5H2, and the units of H1 and H2 are cm.

[0017] In an alternative embodiment, the hydrolysis acidification tank further comprises a water stabilizing part;

[0018] The water stabilizing part is arranged in the sedimentation cavity;

[0019] And, the water stabilizing part is arranged below the overflow port of the drainage assembly.

[0020] In an alternative embodiment, the water stabilizing part comprises a plurality of guide pipes;

[0021] The plurality of guide pipes are connected to each other and arranged in the sedimentation cavity.

[0022] In an alternative embodiment, the guide pipes are arranged in an inclined manner, and the inclination angle is α, and α is in the range of 30°-80°;

[0023] And, the inclination directions of all the guide pipes are consistent.

[0024] In an alternative embodiment, the water inlet assembly comprises:

[0025] A water inlet main pipe and a water inlet guide pipe;

[0026] The water inlet main pipe and the water inlet guide pipe are both vertically inserted into the lower part of the pool body.

[0027] In an alternative embodiment, the diameter of the water inlet guide pipe is smaller than the diameter of the water inlet main pipe;

[0028] And, the water inlet guide pipe is inserted into the water inlet main pipe.

[0029] In an alternative embodiment, the distance between the outlet of the water inlet guide pipe and the pool bottom of the pool body is L1;

[0030] The distance between the outlet of the water inlet main pipe and the pool bottom of the pool body is L2;

[0031] L1>L2, and the units of L1 and L2 are cm.

[0032] In an alternative embodiment, the water inlet assembly further comprises a degassing groove;

[0033] The water inlet main pipe is arranged at the bottom of the degassing groove and communicates with the degassing groove;

[0034] The sidewall of the pool body is provided with a main water inlet port communicating with the degassing groove;

[0035] One end of the water inlet guide pipe penetrates through the pool body, and the other end extends into the water inlet main pipe.

[0036] In an alternative embodiment, the drainage assembly comprises:

[0037] a drainage pipe and an overflow port;

[0038] The water outlet of the drainage pipe is arranged at the lower part of the pool body;

[0039] The water inlet of the drainage pipe is arranged at the upper part of the pool body, and the water inlet of the drainage pipe is arranged upward;

[0040] The overflow port is arranged above the drainage pipe.

[0041] The beneficial effects of the present application are that the intermittent water inlet hydrolysis acidification pool ensures the full mixing of wastewater and sludge by arranging a submersible mixer, and the pool body is divided into a lower-communicating stirring cavity and a sedimentation cavity by arranging a partition plate, so as to reduce the flow of liquid at the upper part of the pool body, accelerate the sedimentation of wastewater, and thus reduce the amount of sludge carried out by the wastewater, and at the same time, a separate sedimentation tank is not required to carry out sedimentation on the discharged wastewater, thereby reducing the overall land occupation area of the wastewater treatment system.

[0042] Other features and advantages of the present application will be described in the following description, and some will become apparent from the description, or will be understood by those skilled in the art, or will be understood by those skilled in the art. The purpose and other advantages of the present application are achieved and obtained by the structure specifically pointed out in the specification and drawings.

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the preferred embodiments are described in detail below, and the accompanying drawings are described as follows. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0045] Figure 1 The top view of the hydrolysis acidification pool provided by the embodiments of the present disclosure;

[0046] Figure 2 The side view of the hydrolysis acidification pool provided by the embodiments of the present disclosure;

[0047] Figure 3A structural schematic view of the water-stable part of the hydrolytic acidification tank provided by the embodiments of the present disclosure is shown in the figure.

[0048] Figure 4 A front view of the hydrolytic acidification tank provided by the embodiments of the present disclosure is shown in the figure.

[0049] In the figure: 100, tank body; 200, partition; 210, stirring cavity; 220, sedimentation cavity; 300, submersible mixer; 400, water inlet assembly; 410, water inlet main pipe; 420, water inlet flow guide pipe; 430, degassing groove; 431, main water inlet; 500, water outlet assembly; 510, water outlet pipe; 520, overflow port; 600, water-stable part; 610, through pipe. DETAILED DESCRIPTION

[0050] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] It is found through research that the mixing efficiency and the sludge carry-out amount in the hydrolytic acidification tank in the related art are inversely proportional, that is, in order to ensure the mixing efficiency, the amount of sludge carried out by the wastewater must be increased; in order to reduce the amount of sludge carried out, the mixing efficiency must be reduced.

[0052] Based on the above research, the embodiments of the present disclosure provide a hydrolytic acidification tank, which is designed by redesigning the tank body structure, so as to reduce the amount of sludge carried out while ensuring the mixing efficiency.

[0053] The defects of the above-mentioned solutions are the results obtained by the inventors after practice and careful research, and therefore, the discovery process of the above-mentioned problems and the solutions proposed by the present disclosure to solve the above-mentioned problems should be the contributions made by the present inventors to the present disclosure in the process of the present disclosure.

[0054] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0055] Some embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the case of no conflict, the embodiments described below and the features in the embodiments can be combined with each other.

[0056] Please refer to Figure 1 and Figure 2At least one embodiment provides a hydrolytic acidification tank with intermittent water feeding, comprising the following structures:

[0057] A tank body 100 filled with sludge. Under the action of hydrolysis and acid-producing bacteria of the sludge, the insoluble organic matters in the wastewater are decomposed into soluble small molecular substances, thereby improving the biodegradability of the wastewater and providing better conditions for subsequent biochemical treatment

[0058] A partition 200 arranged in the tank body 100 and used to separate the tank body 100 into a stirring cavity 210 and a sedimentation cavity 220. The tank body 100 is separated into two cavities in communication with the bottom by the partition 200, so that the wastewater is precipitated by the sedimentation cavity 220 without affecting the stirring, and the sludge content in the wastewater to be discharged from the sedimentation cavity 220 is reduced.

[0059] A submersible stirrer 300 arranged at the bottom of the stirring cavity 210 and used to mix the wastewater and the sludge. The stirring is performed by the submersible stirrer 300, thereby improving the mixing efficiency.

[0060] A water feeding assembly 400 in communication with the stirring cavity 210 and used to feed the wastewater into the tank body 100. The wastewater is fed into the stirring cavity 210 of the tank body 100 by the water feeding assembly 400.

[0061] A water discharging assembly 500 in communication with the sedimentation cavity 220 and used to discharge the hydrolytic acidification wastewater out of the tank body 100. The wastewater in the sedimentation cavity 220 is discharged out of the tank body 100 by the water discharging assembly 500.

[0062] It should be noted that the hydrolytic acidification tank provided in the embodiment does not need to separately arrange a sedimentation tank to precipitate the discharged wastewater, thereby reducing the overall floor area of the wastewater treatment system.

[0063] In use, the wastewater is intermittently fed into the hydrolytic acidification tank, that is, when the submersible stirrer 300 is stirring the wastewater fed last time, no wastewater is fed into the tank body 100, and after the submersible stirrer 300 is stirred for a preset time, the work is stopped, at which time the wastewater is fed, so as to discharge the wastewater fed last time in the tank body.

[0064] It should be noted that the amount of wastewater newly added into the tank body each time is less than or equal to one-half of the capacity of the tank body. Thus, it is ensured that the wastewater discharged each time is stirred and fully mixed with the sludge.

[0065] Please refer to Figure 2The distance between the bottom of the baffle 200 and the bottom of the pool body 100 is H1; the height of the pool body 100 is H2; wherein H1≥0.5H2, and the units of H1 and H2 are cm. The lower part of the pool body 100 is used for mixing wastewater and sludge to ensure the mixing effect.

[0066] Please continue to refer to Figure 2 In order to ensure the hydrolysis acidification tank, the tank further comprises a water stabilizing part 600; the water stabilizing part 600 is arranged in the sedimentation cavity 220; and the water stabilizing part 600 is arranged below the overflow port 520 of the water discharge assembly 500. By arranging the water stabilizing part 600, the sedimentation of sludge is accelerated, and the content of sludge carried out by wastewater is reduced.

[0067] Please refer to Figure 2 and Figure 3 The water stabilizing part 600 comprises a plurality of through pipes 610; the plurality of through pipes 610 are arranged in the sedimentation cavity 220 after being connected with each other. The sedimentation cavity 220 is divided into a plurality of small spaces by the through pipes 610, so as to reduce the shaking of wastewater in the sedimentation cavity 220, thereby accelerating the sedimentation of sludge in the wastewater.

[0068] As shown in Figure 3 The through pipes 610 are arranged in an inclined manner, the inclination angle is α, and the range of α is between 30° and 80°; and the inclination directions of all the through pipes 610 are consistent. The plurality of through pipes 610 are connected with each other, and in other embodiments, the through pipes 610 can be formed by folding a plate and then bonding. The through pipes 610 arranged in an inclined manner can further reduce the shaking of liquid in the vertical direction, thereby accelerating the sedimentation of sludge in the wastewater.

[0069] Since the sludge in the pool body 100 will be deposited at the bottom of the pool body 100, the water inlet in a downward manner will cause the sludge to block the outlet of the water inlet main pipe 410, and in severe cases, the water inlet main pipe 410 can be directly blocked. In order to reduce the cleaning of the water inlet main pipe 410, in some embodiments, please refer to Figure 2 and 4 The water inlet assembly 400 comprises a water inlet main pipe 410 and a water inlet flow guide pipe 420; the water inlet main pipe 410 and the water inlet flow guide pipe 420 are both vertically inserted into the lower part of the pool body 100.

[0070] By arranging the water inlet flow guide pipe 420 to flush the outlet of the water inlet main pipe 410, the sludge is flushed away in advance, thereby reducing the probability of the water inlet main pipe 410 being blocked.

[0071] Please continue to refer to Figure 2 and Figure 4The diameter of the water inlet guide pipe 420 is smaller than that of the water inlet main pipe 410, and the water inlet guide pipe 420 is inserted into the water inlet main pipe 410. The water inlet guide pipe 420 is inserted into the water inlet main pipe 410, so that the water inlet guide pipe 420 can clean the water inlet main pipe 410.

[0072] In order to avoid the sludge entering into the water inlet main pipe 410 from blocking the liquid storage of the water inlet guide pipe 420, in the preferred embodiment, the distance between the outlet of the water inlet guide pipe 420 and the bottom of the pool body 100 is L1, the distance between the outlet of the water inlet main pipe 410 and the bottom of the pool body 100 is L2, wherein L1>L2, and the units of L1 and L2 are cm.

[0073] Referring to Figure 2 and Figure 4 The water inlet assembly 400 further comprises a degassing groove 430, the water inlet main pipe 410 is arranged at the bottom of the degassing groove 430 and communicates with the degassing groove 430, the sidewall of the pool body 100 is provided with a main water inlet 431 which communicates with the degassing groove 430, and one end of the water inlet guide pipe 420 penetrates through the pool body 100 and the other end extends into the water inlet main pipe 410.

[0074] Referring to Figure 4 The water outlet assembly 500 comprises a water outlet pipe 510 and an overflow 520, the water outlet of the water outlet pipe 510 is arranged at the lower part of the pool body 100, the water inlet of the water outlet pipe 510 is arranged at the upper part of the pool body 100 and faces upward, and the overflow 520 is arranged above the water outlet pipe. The water is drained by the overflow mode, so as to reduce the discharge amount of the sludge.

[0075] The utility model provides a hydrolytic acidification pool, comprising: pool body 100 is filled with sludge in it, baffle 200 is arranged in the pool body 100, and is used for separating the pool body 100 into stirring cavity 210 and sedimentation cavity 220, wherein, the stirring cavity 210 is communicated with the bottom of the sedimentation cavity 220, submersible mixer 300 is arranged at the bottom of the stirring cavity 210, and is used for mixing wastewater and sludge, water inlet assembly 400 is communicated with the stirring cavity 210, and is used for passing wastewater into the pool body 100, and drainage assembly 500 is communicated with the sedimentation cavity 220, and is used for discharging the hydrolytic acidification wastewater out of the pool body 100. By setting submersible mixer 300, the wastewater and sludge are fully mixed, and by setting baffle 200, the pool body 100 is separated into the stirring cavity 210 and the sedimentation cavity 220 communicated at the lower part, so that the flow of the liquid in the upper part of the pool body 100 is reduced, the sedimentation of the wastewater is accelerated, the amount of sludge taken out by the wastewater is reduced, and the sedimentation tank is not needed to be separately arranged for the sedimentation of the discharged wastewater, so that the overall floor area of the wastewater treatment system is reduced.

[0076] The above-mentioned ideal embodiments according to the utility model are used as the inspiration, and through the above-mentioned description, the relevant staff can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the scope of claims.

Claims

1. A hydrolysis acidification tank, characterized by, It comprises: a pool body (100) filled with sludge; a partition plate (200) arranged in the pool body (100) and used for separating the pool body (100) into a stirring cavity (210) and a sedimentation cavity (220); wherein the stirring cavity (210) is communicated with the bottom of the sedimentation cavity (220); a submersible stirrer (300) arranged at the bottom of the stirring cavity (210) and used for mixing wastewater with sludge; a water inlet assembly (400) communicated with the stirring cavity (210) and used for feeding wastewater into the bottom of the pool body (100); a water outlet assembly (500) communicated with the sedimentation cavity (220) and used for discharging hydrolytic acidification wastewater out of the pool body (100).

2. The hydrolytic acidification pool according to claim 1, wherein: the distance between the bottom of the partition plate (200) and the pool bottom of the pool body (100) is H1; the height of the pool body (100) is H2; wherein H1≥0.5H2, and H1 and H2 are in cm.

3. The hydrolytic acidification pool according to claim 1, wherein: the hydrolytic acidification pool further comprises a water stabilizing part (600); the water stabilizing part (600) is arranged in the sedimentation cavity (220); and the water stabilizing part (600) is arranged below the overflow port (520) of the water outlet assembly (500).

4. The hydrolytic acidification pool according to claim 3, wherein: the water stabilizing part (600) comprises a plurality of guide pipes (610); the plurality of guide pipes (610) are connected with each other and arranged in the sedimentation cavity (220).

5. The hydrolytic acidification pool according to claim 4, wherein: the guide pipes (610) are arranged in an inclined manner, and the inclination angle is α, and α is in the range of 30°-80°; and the inclination directions of all the guide pipes (610) are consistent.

6. The hydrolytic acidification pool according to claim 1, wherein: the water inlet assembly (400) comprises: a water inlet main pipe (410) and a water inlet guide pipe (420); the water inlet main pipe (410) and the water inlet guide pipe (420) are both vertically inserted into the lower part of the pool body (100).

7. The hydrolytic acidification pool according to claim 6, wherein: the diameter of the water inlet guide pipe (420) is smaller than that of the water inlet main pipe (410); and the water inlet guide pipe (420) is inserted into the water inlet main pipe (410).

8. The hydrolytic acidification pool according to claim 7, wherein: the distance between the outlet of the water inlet guide pipe (420) and the pool bottom of the pool body (100) is L1; the distance between the outlet of the water inlet main pipe (410) and the pool bottom of the pool body (100) is L2; wherein L1>L2, and L1 and L2 are in cm.

9. The hydrolytic acidification pool according to claim 6, wherein: the water inlet assembly (400) further comprises a degassing groove (430). The water inlet main pipe (410) is arranged at the bottom of the degassing groove (430) and communicates with the degassing groove (430); The sidewall of the pool body (100) is provided with a main water inlet (431) which communicates with the degassing groove (430); One end of the water inlet flow guide pipe (420) penetrates the pool body (100), and the other end extends into the water inlet main pipe (410).

10. The hydrolytic acidification pool according to claim 1, characterized in that, The drainage assembly (500) comprises: a drainage pipe (510) and an overflow (520); The drainage port of the drainage pipe (510) is arranged at the lower part of the pool body (100); The water inlet of the drainage pipe (510) is arranged at the upper part of the pool body (100), and the water inlet of the drainage pipe (510) is arranged upward; The overflow (520) is arranged above the drainage pipe (510).

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