CN218610999U

CN218610999U - Anaerobic digestion tank sediment resourceful treatment system

Info

Publication number: CN218610999U
Application number: CN202223014469.XU
Authority: CN
Inventors: 王冰; 朱黎巍; 杨礼佼; 姜霖霖
Original assignee: Yixing Huaduhupo Environmental Protection Machinery Manufacturing Co ltd
Current assignee: Yixing Huaduhupo Environmental Protection Machinery Manufacturing Co ltd
Priority date: 2022-11-13
Filing date: 2022-11-13
Publication date: 2023-03-14
Anticipated expiration: 2032-11-13

Abstract

The application discloses anaerobic digestion jar deposit resourceful treatment system relates to kitchen garbage processing field, and processing system includes: a first vessel for holding the pretreated slurry; an anaerobic digestion tank connected to the first vessel for performing anaerobic digestion treatment on the slurry; the sand discharge pump is connected with the bottom end of the anaerobic digestion tank; the settled sand washing and recovering device is connected with the outlet of the sand discharge pump and is sequentially provided with a feed inlet, an overflow port and a discharge port from top to bottom; the sand discharge pump is used for pumping the silt deposited at the bottom of the anaerobic digestion tank and sending the silt to the feeding hole; the overflow port is connected with the anaerobic digestion tank and is used for enabling the desanded slurry in the sand setting washing and recovering device to flow back to the anaerobic digestion tank; the sand setting washing and recovering device is communicated with the first container, and the first container can output washing water to the sand setting washing and recovering device. The anaerobic digestion tank sediment recycling treatment system provided by the specification can avoid the problems of organic matter loss and heat loss and can reduce the cost.

Description

Anaerobic digestion tank sediment resourceful treatment system

Technical Field

The specification relates to the technical field of kitchen waste treatment, in particular to an anaerobic digestion tank sediment recycling treatment system.

Background

At present, the most applied treatment technology of the kitchen waste is a wet-type medium-temperature anaerobic fermentation technology. Specifically, the pretreated kitchen waste is degraded under an anaerobic condition to generate substances such as methane, carbon dioxide and the like, and simultaneously, the generated methane and the extracted grease are recycled, so that the reduction, harmless and recycling treatment of the kitchen waste is realized. This technique requires the use of a wet anaerobic reaction tank.

Because the kitchen waste can only remove sand more than 0.2mm in the pretreatment stage before entering the wet anaerobic reaction tank, part of the sand less than 0.2mm can be deposited at the bottom of the reaction tank in the actual operation work. The liquid distribution in the digestion system is uneven after long-term non-cleaning, the effective volume of the reaction tank is occupied, the anaerobic system is easily unbalanced, and the normal production is influenced.

The conventional process is that the sediment deposited at the bottom and the slurry are discharged to a sludge treatment workshop by a sand discharge pump at regular intervals, forced dehydration is carried out by a sludge dehydrator, the dehydrated filtrate enters a sewage treatment system, and the sludge is directly buried or incinerated.

However, the existing technology for removing the sediment in the anaerobic tank of the anaerobic digestion system has some disadvantages, such as loss of organic matters and temperature, and thus influence on the gas production rate of the anaerobic tank; and the generated sewage and sludge also need secondary treatment, which additionally increases the treatment cost.

SUMMERY OF THE UTILITY MODEL

In view of the defects of the prior art, an object of the present specification is to provide a recycling system for anaerobic digester sediments, which can avoid the problems of organic matter loss and heat loss, reduce the cost, and recycle the extracted fine sand.

In order to achieve the above objects, embodiments of the present specification provide a system for recycling anaerobic digester sediment, comprising:

a first vessel for containing the pretreated slurry;

an anaerobic digester tank connected to the first vessel for anaerobic digestion treatment of the slurry;

the sand discharge pump is connected with the bottom end of the anaerobic digestion tank;

the settled sand washing and recovering device is connected with the outlet of the sand discharge pump and is sequentially provided with a feed inlet, an overflow port and a discharge port from top to bottom; the sand discharge pump is used for pumping the silt deposited at the bottom of the anaerobic digestion tank and sending the silt to the feeding hole; the overflow port is connected with the anaerobic digestion tank and is used for enabling the desanded slurry in the sand setting washing and recovering device to flow back to the anaerobic digestion tank; the sand setting washing and recovering device is communicated with the first container, and the first container can output washing water to the sand setting washing and recovering device.

As a preferred embodiment, the system for recycling treatment of anaerobic digestion tank sediment further comprises:

the second container is connected with the overflow port and is used for containing the desanded slurry flowing out of the overflow port;

and the discharge pump is connected with the second container and is used for pumping the desanded slurry in the second container to the anaerobic digestion tank.

In a preferred embodiment, an ultrasonic liquid level meter for measuring the liquid level is arranged in the second container.

As a preferred embodiment, the bottom surface of the second container is downwardly concave; the discharge pump and the second container are connected to the bottom end of the second container.

As a preferred embodiment, the sand settling washing recovery apparatus comprises a fluidizing vessel; the upper end of the fluidization container is provided with the feed inlet, the lower end of the fluidization container is provided with the discharge outlet, and the side wall of the fluidization container is provided with the overflow port; the fluidization container is provided with a water inlet communicated with the first container; and a stirring assembly is arranged in the fluidization container to stir the materials in the fluidization container.

As a preferred embodiment, a washing water pump for pumping washing water from the first container into the fluidized container is provided between the first container and the water inlet.

In a preferred embodiment, the washing water pump and the first container are connected to a top end of the first container.

As a preferred embodiment, the top of the fluidization vessel is further provided with a gas outlet; the fluidization container is in an inverted cone shape; an organic matter discharge port is formed in the side wall of the fluidization container and located below the overflow port, and the organic matter discharge port is communicated with the second container.

As a preferred embodiment, the sand setting washing recovery device comprises a conveying mechanism; the conveying mechanism is provided with an input end and an output end, the input end corresponds to the discharge hole in position so as to convey the materials discharged from the discharge hole to the conveying mechanism, and the output end is higher than the input end in position.

In a preferred embodiment, the output end is provided with a sand outlet; the anaerobic digestion tank sediment recycling system further comprises a discharging sand box, wherein the discharging sand box is located below the sand outlet and used for containing materials output by the sand outlet.

Has the advantages that:

according to the anaerobic digestion tank sediment recycling system provided by the embodiment, the sand discharge pump is arranged, so that the silt deposited at the bottom of the anaerobic digestion tank can be pumped to the settled sand washing and recycling device; the settled sand washing and recovering device can discharge fine sand with the particle size of less than 0.2mm through the discharge hole, and can be recycled after being collected, so that the slurry after sand removal flows back to the anaerobic digestion tank through the overflow hole, organic matters and heat are recovered, the problems of organic matter loss and heat loss can be avoided, and the gas production rate of the anaerobic digestion tank can be increased. And the settled sand washing and recovering device is communicated with the first container, so that washing water of the settled sand washing and recovering device can be obtained from the first container, namely, pretreated slurry is used as the washing water, resources can be reasonably utilized, waste is avoided, and cost is reduced.

Specific embodiments of the present invention are disclosed in detail with reference to the following description and the accompanying drawings, which specify the manner in which the principles of the invention may be employed. It should be understood that the embodiments of the present invention are not so limited in scope.

Features that are described and/or illustrated with respect to one embodiment may be used in the same way or in a similar way in one or more other embodiments, in combination with or instead of the features of the other embodiments.

It should be emphasized that the term "comprises/comprising" when used herein, is taken to specify the presence of stated features, integers, steps or components but does not preclude the presence or addition of one or more other features, integers, steps or components.

Drawings

In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 inventive exercise.

FIG. 1 is a schematic structural view of a recycling system for anaerobic digester sediments provided in the present embodiment;

fig. 2 is a schematic structural diagram of a settled sand washing and recovering device provided in this embodiment.

Description of reference numerals:

1. a first container; 2. an anaerobic digestion tank; 3. a sand discharge pump; 4. washing the water pump; 5. a sand setting washing recovery device; 51. a fluidizing vessel; 52. a conveying mechanism; 53. a feed inlet; 54. an overflow port; 55. an organic matter discharge port; 56. a discharge port; 57. a water inlet; 58. an input end; 59. an output end; 510. a sand outlet; 511. a first motor; 512. a second motor; 513. a support frame; 514. a stirring assembly; 6. discharging the sand box; 7. a second container; 71. an ultrasonic liquid level meter; 8. a discharge pump.

Detailed Description

In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below 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, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall fall within the protection scope of the present invention.

It will be understood that when an element is referred to as being "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1. The embodiment of the application provides a resourceful treatment system for anaerobic digestion tank sediments, which comprises a first container 1, an anaerobic digestion tank 2, a sand discharge pump 3 and a sand setting washing and recycling device 5.

Wherein the first container 1 is used for containing the pretreated slurry. An anaerobic digestion tank 2 is connected to the first vessel 1 for anaerobic digestion treatment of the slurry. The sand discharge pump 3 is connected with the bottom end of the anaerobic digestion tank 2. The settled sand washing and recovering device 5 is connected with the outlet of the sand discharge pump 3. The sand setting washing and recovering device 5 is sequentially provided with a feed port 53, an overflow port 54 and a discharge port 56 from top to bottom. The sand discharge pump 3 is used for pumping the silt deposited at the bottom of the anaerobic digestion tank 2 and sending the silt to the feeding hole 53. The overflow port 54 is connected to the anaerobic digestion tank 2, and is used for enabling the desanded slurry in the sand setting washing and recovering device 5 to flow back to the anaerobic digestion tank 2. The sand setting washing and recovering device 5 is communicated with the first container 1, and the first container 1 can output washing water to the sand setting washing and recovering device 5.

According to the anaerobic digestion tank sediment recycling treatment system provided by the embodiment, the sand discharge pump 3 is arranged, so that the silt deposited at the bottom of the anaerobic digestion tank 2 can be pumped to the settled sand washing and recycling device 5; the settled sand washing and recovering device 5 can discharge fine sand with the particle size smaller than 0.2mm through the discharge hole 56, and can be recycled after collection, so that the desanded slurry flows back to the anaerobic digestion tank 2 through the overflow hole 54, organic matters and heat are recovered, the problems of organic matter loss and heat loss can be avoided, and the gas production rate of the anaerobic digestion tank 2 can be increased. In addition, the settled sand washing and recovering device 5 is communicated with the first container 1, so that washing water of the settled sand washing and recovering device 5 can be obtained from the first container 1, namely, pretreated slurry is used as the washing water, resources can be reasonably utilized, waste is avoided, and cost is reduced.

In this embodiment, as shown in fig. 1, the anaerobic digester sediment recycling system may further include a second container 7 connected to the overflow port 54 for containing the degritted slurry flowing out of the overflow port 54. An ultrasonic level meter 71 for measuring the liquid level may be provided in the second container 7. The bottom surface of the second container 7 is concave downwards, and the bottom surface can be set to be a shape with a low middle part and a high periphery, so that particles such as organic matters can be further deposited at the bottom of the second container 7. The second container 7 may act as a buffer tank.

Further, the system for recycling anaerobic digestion tank sediment can also comprise a discharge pump 8 which is connected with the second container 7 and used for pumping the desanded slurry in the second container 7 to the anaerobic digestion tank 2. The discharging pump 8 can be electrically connected with the ultrasonic liquid level meter 71, and when the liquid level measured by the ultrasonic liquid level meter 71 is equal to or higher than a preset value, the discharging pump 8 starts to work; when the liquid level measured by the ultrasonic liquid level meter 71 is lower than a preset value, the discharge pump 8 stops working.

Preferably, the discharge pump 8 and the second container 7 are connected to the side surface of the second container 7 near the bottom end, so that impurities in the center of the bottom surface can be pumped away, organic matters are prevented from being deposited at the bottom of the second container 7, and the reaction efficiency in the anaerobic digestion tank 2 is further improved.

As shown in fig. 1 and 2, the sand washing recovery device 5 includes a fluidizing vessel 51. The upper end of the fluidizing container 51 is provided with the feeding hole 53, the lower end of the fluidizing container 51 is provided with the discharging hole 56, and the side wall of the fluidizing container 51 is provided with the overflow hole 54. The fluidising container 51 is provided with a water inlet 57 in communication with the first container 1. An agitation assembly 514 is disposed within the fluidized container 51 to agitate the material within the fluidized container 51.

Specifically, a washing water pump 4 for pumping the washing water from the first container 1 into the fluidized container 51 is provided between the first container 1 and the water inlet 57. The washing water pump 4 is connected to the top end of the first container 1 together with the first container 1, so that the washing water pump 4 can send the slurry in the upper part of the first container 1 to the fluidization container 51 as the washing water pump 4. The slurry in the upper part of the first vessel 1 contains less impurities than the solution in the lower part and is therefore more suitable for input as wash water to the fluidising vessel 51.

In order to equalize the internal and external pressures of the fluidizing vessel 51, a vent (not shown) may be provided at the top of the fluidizing vessel 51 to vent excess gas from the fluidizing vessel 51. In the present embodiment, the fluidizing vessel 51 may have an inverted cone shape. An inlet 53 may be provided at an upper end of the fluidizing vessel 51 to input the material into the fluidizing vessel 51, and an outlet 56 may be provided at a lower end of the fluidizing vessel 51 to discharge the material processed by the fluidizing vessel 51. Preferably, the fluidizing vessel 51 may be a fluidized bed or the like.

The agitation assembly 514 is positioned generally on the axis of the fluidized vessel 51 to better agitate the material within the fluidized vessel 51. Specifically, the stirring assembly 514 may include a first motor 511, a rotating shaft (not shown), and a blade (not shown). An output shaft of the first motor 511 is connected to the rotating rod, and a blade is connected to the end of the rotating rod.

An organic matter discharge port 55 can be further formed in the side wall of the fluidization container 51, the organic matter discharge port 55 is located below the overflow port 54, and the organic matter discharge port 55 is communicated with the second container 7. The organic matter discharge port 55 can be opened at a fixed time to discharge the liquid, and the overflow port 54 is always opened to discharge the liquid.

The side wall of the fluidization container 51 may be further provided with a water inlet 57. After the material has entered the fluidization vessel 51, water may be introduced through the water inlet 57 to wash the material and remove as much of the organic material from the fine sand and gravel as possible. The washing water may be discharged through the overflow port 54. When the water in the fluidized vessel 51 exceeds the position of the overflow port 54, the overflow port 54 can discharge the water to prevent the excessive amount of the suspended organic materials in the fluidized vessel 51. The organic matters washed in the fluidizing vessel 51 can be periodically discharged through the organic matter discharge port 55.

As shown in fig. 1 and 2, the sand washing and recovering device 5 may further include a conveying mechanism 52. The conveying mechanism 52 has an input end 58 and an output end 59, and the input end 58 corresponds to the position of the discharge port 56 so as to convey the material discharged from the discharge port 56 to the conveying mechanism 52. The conveyor 52 may be inclined with the output end 59 positioned higher than the input end 58 to collect and dewater the fine sand and gravel. The angle between the conveying mechanism 52 and the horizontal direction may be 30-60 deg.. In one embodiment, the conveyor 52 is angled 40 ° from horizontal.

As shown in fig. 1, the output 59 has a sand outlet 510. The anaerobic digestion tank sediment recycling system further comprises a discharging sand box 6, wherein the discharging sand box 6 is positioned below the sand outlet 510 and used for containing the materials output by the sand outlet 510. The conveyor mechanism 52 may include a second motor 512 and a threaded shaft assembly, with the second motor 512 driving the threaded shaft assembly discharging material entering from the input end 58 through the threaded shaft assembly to a sand outlet 510 of the output end 59. The middle position of the conveying mechanism 52 may be supported by a support frame 513.

The utility model discloses sand setting washing recovery unit 5 in the embodiment when using, the material at first gets into from feed inlet 53, under the effect of the stirring subassembly 514 of fluidization container 51, the fluid material in the device is in the fluidized bed state, and fluidization container 51 lower extreme can be collected to fine sand and grit. The fine sand and gravel in the fluidized vessel 51 are then fluidized and washed by feeding water through the water inlet 57. The washed clean fine sand and gravel may be discharged through the outlet 56 of the fluidising container 51 to the conveyor 52 and out the outlet 59 of the conveyor 52. The fluid containing organic matters washed in the fluidized vessel 51 can be discharged through the overflow port 54 and the organic matter discharge port 55, and the washing water is discharged through the overflow port 54 together.

The settled sand washing and recovering device 5 in the embodiment or the embodiment of the application has large surface treatment load, can be processed and manufactured in sections and then is reliably connected through splicing flanges and bolts. And meanwhile, the lengthened screw is adopted for sand discharging and separating, so that the sand discharging and removing efficiency can be improved, and the solid content of the discharged sand is ensured. Furthermore, a flushing system is arranged at the bottom (fluidized bed area) of the fluidized container 51, so that fine sand and gravel in the material can be washed, the organic matter content on the surface of the fine sand and gravel is reduced to the minimum, and the fine sand and gravel returns to the anaerobic digestion tank 2 along with the organic matter discharge port 55 and the overflow port 54, and the organic matter loss and the waste of heat energy of the anaerobic system are reduced. The center of the fluidization vessel 51 may be provided with an agitation assembly 514 that, in operation, places the bottom (sand bed region) in a fluidized state, while also reducing the organic content of the fine sand, gravel surface, during the constant rotational friction of the sand bed.

It should be noted that the first motor 511, the second motor 512, and the like provided in the present embodiment may be any suitable conventional structure. For clearly and briefly explaining the technical solution provided by the present embodiment, the above parts will not be described again, and the drawings in the specification are also simplified accordingly. It should be understood, however, that the present embodiments are not limited in scope thereby.

In a specific application scenario, silt deposited at the bottom of the anaerobic digestion tank 2 is pumped out by a sand discharge pump 3 and sent to a silt washing and recycling device 5. The settled sand washing and recovering device 5 dilutes and washes the bottom sediment under the action of the stirring assembly 514 and the pressure washing water. The fine sand with the particle size less than 0.2mm, which is washed by deposition, is conveyed out by a screw and falls into a discharging sand box 6 for secondary utilization, so that the slag can be recycled. The degritted slurry overflows to a second vessel 7 and is fed back to the anaerobic digester 2 by a discharge pump 8. The water used for washing is the pretreated slurry in the first container 1, and the concentration of the material returned to the anaerobic digestion tank 2 is not influenced. The arrows in fig. 1 indicate the direction of flow of the material.

The anaerobic digestion tank sediment recycling system provided by the embodiment can realize effective separation and recycling of sludge fine sand at the bottom of the anaerobic digestion tank 2, ensure safe operation of the anaerobic digestion tank 2, reduce organic matter loss and heat energy waste of the anaerobic system, ensure operation treatment efficiency of the anaerobic system, and can be widely applied to anaerobic digestion treatment systems such as kitchen waste.

It should be noted that, in the description of the present specification, the terms "first", "second", and the like are used for descriptive purposes only and for distinguishing similar objects, and no order is present therebetween, and no indication or suggestion of relative importance is to be made. Further, in the description of the present specification, "a plurality" means two or more unless otherwise specified.

Any numerical value recited herein includes all values from the lower value to the upper value, in increments of one unit, provided that there is a separation of at least two units between any lower value and any higher value. For example, if it is stated that the number of a component or a value of a process variable (e.g., temperature, pressure, time, etc.) is from 1 to 90, preferably from 20 to 80, and more preferably from 30 to 70, it is intended that equivalents such as 15 to 85, 22 to 68, 43 to 51, 30 to 32 are also expressly enumerated in this specification. For values less than 1, one unit is suitably considered to be 0.0001, 0.001, 0.01, 0.1. These are only examples of what is intended to be explicitly recited, and all possible combinations of numerical values between the lowest value and the highest value that are explicitly recited in the specification in a similar manner are to be considered.

Unless otherwise indicated, all ranges include the endpoints and all numbers between the endpoints. The use of "about" or "approximately" with a range applies to both endpoints of the range. Thus, "about 20 to about 30" is intended to cover "about 20 to about 30", including at least the endpoints specified.

All articles and references disclosed, including patent applications and publications, are incorporated by reference herein for all purposes. The term "consisting essentially of …" describing a combination shall include the identified elements, components, parts or steps as well as other elements, components, parts or steps that do not materially affect the basic novel characteristics of the combination. The use of the terms "comprising" or "including" to describe combinations of elements, components, or steps herein also contemplates embodiments that consist essentially of such elements, components, or steps. By using the term "may" herein, it is intended to indicate that any of the described attributes that "may" include are optional.

A plurality of elements, components, parts or steps can be provided by a single integrated element, component, part or step. Alternatively, a single integrated element, component, part or step may be divided into separate plural elements, components, parts or steps. The disclosure of "a" or "an" to describe an element, ingredient, component or step is not intended to foreclose other elements, ingredients, components or steps.

It is to be understood that the above description is intended to be illustrative, and not restrictive. Many embodiments and many applications other than the examples provided will be apparent to those of skill in the art upon reading the above description. The scope of the present teachings should, therefore, be determined not with reference to the above description, but should instead be determined with reference to the appended claims, along with the full scope of equivalents to which such claims are entitled. The disclosures of all articles and references, including patent applications and publications, are hereby incorporated by reference for all purposes. The omission in the foregoing claims of any aspect of the subject matter that is disclosed herein is not intended to forego such subject matter, nor should the inventors be construed as having contemplated such subject matter as being part of the disclosed inventive subject matter.

Claims

1. A anaerobic digestion tank sediment resourceful treatment system is characterized by comprising:

a first vessel for holding the pretreated slurry;

the settled sand washing and recovering device is connected with the outlet of the sand discharge pump and is sequentially provided with a feed inlet, an overflow port and a discharge port from top to bottom; the sand discharge pump is used for pumping the silt deposited at the bottom of the anaerobic digestion tank and sending the silt to the feeding hole; the overflow port is connected with the anaerobic digestion tank and is used for enabling the slurry after sand removal in the sand setting washing and recovery device to flow back to the anaerobic digestion tank; the sand setting washing and recovering device is communicated with the first container, and the first container can output washing water to the sand setting washing and recovering device.

2. The anaerobic digester sediment resource treatment system of claim 1 further comprising:

3. The anaerobic digester sediment resourceful treatment system of claim 2, wherein an ultrasonic liquid level meter for measuring liquid level is arranged in the second container.

4. The anaerobic digester sediment resourceful treatment system of claim 2 wherein the bottom surface of the second container is recessed downward; the discharge pump and the second container are connected to the bottom end of the second container.

5. The anaerobic digester sediment resource treatment system as claimed in claim 1, wherein the grit washing recovery device comprises a fluidization vessel; the upper end of the fluidization container is provided with the feed inlet, the lower end of the fluidization container is provided with the discharge outlet, and the side wall of the fluidization container is provided with the overflow port; the fluidization container is provided with a water inlet communicated with the first container; and a stirring assembly is arranged in the fluidization container to stir the materials in the fluidization container.

6. The anaerobic digester sediment resourceful treatment system of claim 5 wherein a wash water pump for pumping wash water from the first container into the fluidization container is provided between the first container and the water inlet.

7. The anaerobic digester sediment resourceful treatment system of claim 6 wherein the wash water pump is connected to the top end of the first container.

8. The anaerobic digester sediment resource treatment system as claimed in claim 5, characterized in that the top of the fluidization container is also provided with an exhaust port; the fluidization container is in an inverted cone shape; an organic matter discharge port is formed in the side wall of the fluidization container and located below the overflow port, and the organic matter discharge port is communicated with the second container.

9. The anaerobic digester sediment resource treatment system as claimed in claim 1, wherein the grit washing recovery device comprises a conveying mechanism; the conveying mechanism is provided with an input end and an output end, the input end corresponds to the position of the discharge hole so as to convey the material discharged from the discharge hole to the conveying mechanism, and the position of the output end is higher than that of the input end.

10. The anaerobic digester sediment resource treatment system as claimed in claim 9, wherein the output end has a sand outlet; the anaerobic digestion tank sediment recycling system further comprises a discharging sand box, wherein the discharging sand box is located below the sand outlet and used for containing materials output by the sand outlet.