CN215288472U

CN215288472U - Sludge anaerobic digestion experimental device with feeding metering assembly

Info

Publication number: CN215288472U
Application number: CN202121504688.9U
Authority: CN
Inventors: 赵浩
Original assignee: Hunan Junxin Environmental Co ltd
Current assignee: Hunan Junxin Environmental Co ltd
Priority date: 2021-07-02
Filing date: 2021-07-02
Publication date: 2021-12-24
Anticipated expiration: 2031-07-02

Abstract

The utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly, include: the device comprises a feed hopper, an anaerobic tank and a feed metering component with adjustable volume; one end of the feeding metering component is connected with a discharge hole of the feed hopper, the other end of the feeding metering component is connected with a feed inlet of the anaerobic tank, and the feeding metering component is used for metering the amount of sludge entering the anaerobic tank. The utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly has advantages such as compact structure, easy operation, measurement accuracy, can ensure to last to keep anaerobic state in the anaerobism jar, has realized mud anaerobic digestion experimental apparatus continuous operation, has improved the efficiency of mud anaerobic digestion treatment and the reliability of experimental result.

Description

Sludge anaerobic digestion experimental device with feeding metering assembly

Technical Field

The utility model belongs to the technical field of sludge treatment, concretely relates to mud anaerobic digestion experimental apparatus with feeding measurement subassembly.

Background

The sewage treatment industry of China has been in breakthrough development in the last decades, and municipal sewage treatment plants can generate a large amount of sludge in the sewage treatment process. However, due to the serious phenomenon of 'heavy water and light sludge' existing in the construction of sewage treatment plants in China, a large amount of sludge is 'overstocked', and reasonable and safe treatment and disposal are not obtained. Therefore, compared with the mature sewage treatment technology, the sludge treatment technology is still in the initial stage in China and is slowly developed.

The mature technology in the existing sludge treatment technology is anaerobic digestion technology, and most of the sludge treatment projects in China adopt anaerobic digestion technology in recent decades. Anaerobic digestion of sludge refers to a process in which biodegradable organic matters in sludge are decomposed into carbon dioxide, methane, water and the like by facultative bacteria and anaerobic bacteria under an anaerobic condition to stabilize the sludge, and is one of common means for sludge reduction and stabilization. Because the components of the sludge are complex and the material characteristics and the gas production potential are uncertain, the direct engineering application lacks technical support. The experimental study of anaerobic digestion is necessary for better studying the anaerobic digestion process of the sludge, improving the anaerobic digestion efficiency of the sludge and improving the resource level to a greater extent. In the study of anaerobic digestion of sludge, the sludge treatment capacity of a pilot test experiment is about 15L, the most important reaction device in the pilot test experiment device is an anaerobic tank, and the anaerobic tank is used for simulating the process of engineering anaerobic digestion to study the anaerobic digestion of sludge.

The anaerobic tank used in the existing sludge anaerobic digestion pilot test mainly has the following defects: (1) in the experimental process, the anaerobic tank needs to be opened when the materials are fed into the anaerobic tank, so that the tank can not reach a complete anaerobic state during feeding, and the deviation of the experimental result of anaerobic digestion treatment of sludge is increased; (2) need carry out artifical measurement and throw the material, there is certain deviation in the input of material, has increased experimental error: (3) the feeding device with the feeding metering component can only feed a specific amount, cannot adjust the feeding amount along with the experiment requirement, and has poor flexibility; (4) the cleaning assembly is not arranged in the anaerobic tank, so that the feeding hopper and the feeding metering assembly are difficult to clean, sludge is easily attached to the inner wall of the feeding hopper and the feeding metering assembly, sludge samples from different sources are easily polluted poorly, and the final experimental result error is large.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome the not enough of prior art, provide a compact structure, easy operation, measurement accurate have the mud anaerobic digestion experimental apparatus of feeding measurement subassembly.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a mud anaerobic digestion experimental apparatus with feeding measurement subassembly includes: the device comprises a feed hopper, an anaerobic tank and a feed metering component with adjustable volume; one end of the feeding metering component is connected with a discharge hole of the feed hopper, the other end of the feeding metering component is connected with a feed inlet of the anaerobic tank, and the feeding metering component is used for metering the amount of sludge entering the anaerobic tank.

As a further improvement, the feeding metering assembly comprises a feeding cylinder with adjustable volume, one end of the feeding cylinder is connected with the discharge port of the feed hopper, and the other end of the feeding cylinder is connected with the feed inlet of the anaerobic tank.

As a further improvement of the present invention, the feed metering assembly further comprises a second valve located at a tip of the feed cylinder close to the anaerobic tank for realizing on-off of the feed cylinder.

As a further improvement, the feeding metering assembly further comprises an elastic membrane, the elastic membrane is arranged inside the feeding cylinder, the edge of the elastic membrane is connected with the inner side wall of the feeding cylinder in a sealing manner, and the deformation of the elastic membrane is changed to adjust the volume of the feeding cylinder.

As a further improvement of the utility model, the feeding measurement subassembly still includes adjusting screw, adjusting screw passes the lateral wall of a feeding section of thick bamboo and is connected with the elastic membrane, and precession or screw-out adjusting screw extend or contract in order to realize the elastic membrane at a feeding section of thick bamboo is inside.

As a further improvement of the utility model, the elastic membrane is made of silica gel or rubber.

As a further improvement of the utility model, the feeding metering component further comprises a first valve, the first valve is located the tip that a feeding section of thick bamboo is close to the feeder hopper for the break-make of a control feeding section of thick bamboo.

As a further improvement of the utility model, the first valve and the second valve are gate valves.

As a further improvement, the experimental device for anaerobic digestion of sludge further comprises a cleaning component, wherein the cleaning component is used for cleaning the feed hopper and the feeding metering component.

As a further improvement, the cleaning assembly comprises a water inlet valve and a water inlet pipe, the water inlet pipe is connected with the bottom of the feed hopper, and the water inlet valve is used for controlling the on-off of the water inlet pipe.

As a further improvement of the utility model, the feed hopper is funnel-shaped; the material of the feeding cylinder is stainless steel or carbon steel.

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly through set up volume adjustable feeding measurement subassembly between feeder hopper and anaerobic jar, can carry out accurate measurement, not only convenient but also reliable to the mud that gets into in the anaerobic jar. And the volume of the feeding metering component can be flexibly adjusted according to the experimental requirements, so that the flexible adjustment of the sludge feeding amount is realized, and the anaerobic digestion treatment efficiency of the sludge is improved.

2. The utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly sets up a feeding section of thick bamboo between the discharge gate at the feeder hopper and the feed inlet of anaerobic jar, sets up the break-make of valve control feeding section of thick bamboo at feeding section of thick bamboo both ends, has realized not opening the anaerobic jar and just accomplishes the mud feeding, has ensured that the anaerobic jar is in complete anaerobic state all the time, has improved mud anaerobic digestion's success. Meanwhile, the elastic membrane is arranged in the feeding cylinder in a sealed mode, the adjusting screw penetrates through the side wall of the feeding cylinder and is connected with the elastic membrane, the adjusting screw is screwed in or out to stretch or shrink the elastic membrane in the feeding cylinder, the internal volume of the feeding cylinder is correspondingly changed, accurate measurement of sludge feeding amount is achieved, errors caused by manual measurement are avoided, the accuracy of an experimental result is improved, and the labor intensity of operators is effectively reduced.

3. The utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly through setting up the washing subassembly in the feeder hopper bottom, can wash feeder hopper and a feeding section of thick bamboo at any time, has improved the cleanliness of feeder hopper and a feeding section of thick bamboo, has avoided the mud sample cross contamination in different sources, has improved the degree of accuracy and the reliability of mud anaerobic digestion treatment experimental result.

Drawings

FIG. 1 is a schematic diagram of the structure principle of the experimental device for anaerobic digestion of sludge with a feeding metering component of the present invention.

Illustration of the drawings: 1. a feed hopper; 2. cleaning the assembly; 21. a water inlet valve; 22. a water inlet pipe; 3. an anaerobic jar; 31. a discharge port; 4. a feeding cylinder; 5. adjusting the screw rod; 6. an elastic film; 7. a first valve; 8. a second valve.

Detailed Description

The invention will be further described with reference to the drawings and specific preferred embodiments without limiting the scope of the invention.

Examples

As shown in figure 1, the utility model discloses a mud anaerobic digestion experimental apparatus with feeding measurement subassembly includes: feed hopper 1, anaerobic jar 3 and volume adjustable feed metering components. One end of the feeding metering component is connected with a discharge hole of the feed hopper 1, the other end of the feeding metering component is connected with a feed inlet of the anaerobic tank 3, and the feeding metering component meters the amount of sludge entering the anaerobic tank 3. In this embodiment, feeder hopper 1 is hopper-shaped, and the adoption hopper-shaped feeder hopper 1 is favorable to improving mud input speed.

In this embodiment, through set up volume adjustable feeding measurement subassembly between feeder hopper 1 and anaerobic jar 3, can carry out accurate measurement to the mud that gets into in the anaerobic jar 3, both convenient and reliable. And the volume of the feeding metering component can be flexibly adjusted according to the experimental requirements, so that the flexible adjustment of the sludge feeding amount is realized, and the anaerobic digestion treatment efficiency of the sludge is improved.

In this embodiment, feeding measurement subassembly includes volume adjustable feeding section of thick bamboo 4, and the one end of feeding section of thick bamboo 4 is connected with the discharge gate of feeder hopper 1, and the other end is connected with the feed inlet of anaerobic jar 3. It will be appreciated that the feed cylinder 4 may be made of stainless steel or carbon steel in order to increase the service life of the feed cylinder 4 and to prevent the feed cylinder 4 from being eroded by sludge.

In this embodiment, the feeding metering assembly further includes a first valve 7 and a second valve 8, the first valve 7 and the second valve 8 are respectively disposed at two ends of the feeding cylinder 4, and the on-off of the feeding cylinder 4 is controlled by the first valve 7 and the second valve 8. Specifically, the on-off between the feeding cylinder 4 and the feeding hopper 1 is controlled through the first valve 7, the on-off between the feeding cylinder 4 and the anaerobic tank 3 is controlled through the second valve 8, the sludge feeding can be completed without opening the anaerobic tank 3, and the anaerobic tank 3 is ensured to be in a completely anaerobic state all the time.

In this embodiment, the first valve 7 and the second valve 8 are gate valves. The gate valve has the advantages of small fluid resistance, small erosion and corrosion of a sealing surface by a medium, no restriction on the flow direction of the medium, no turbulence, no pressure reduction and the like, and is more labor-saving to open and close. It is understood that in other embodiments, other types of valves can be used for the first valve 7 and the second valve 8, as long as the on-off of the feeding cylinder 4 can be controlled to achieve accurate metering of the sludge.

In this embodiment, the feeding metering assembly further includes an elastic membrane 6, and edges of two ends of the elastic membrane 6 are respectively connected with the inner side wall of the feeding cylinder 4 in a sealing manner, so as to adjust the volume of the feeding cylinder 4 by changing the deformation amount of the elastic membrane 6. Specifically, when the elastic membrane 6 is stretched, the elastic membrane 6 occupies the inner volume of the feed cylinder 4, that is, reduces the volume of the feed cylinder 4; when the elastic membrane 6 contracts, the elastic membrane 6 releases the inner volume of the feeder cylinder 4, i.e. increases the volume of the feeder cylinder 4. It is understood that in other embodiments, the assembly for adjusting the size of the inner volume of the feed cylinder 4 may also be configured as a rigid adjusting assembly, for example, a rigid baffle plate is arranged inside the feed cylinder 4, and the rigid baffle plate is tilted inside the feed cylinder 4 to change the size of the inner volume of the feed cylinder 4. Or a rigid regulating valve with a volume regulating function is arranged inside the feeding cylinder 4.

In this embodiment, the elastic membrane 6 is made of rubber, and the rubber has a good resilience force, is wear-resistant, and is not easy to leak. It is understood that in other embodiments, the elastic membrane 6 may be made of other flexible materials having elasticity and abrasion resistance, for example, the elastic membrane 6 may be made of silicon rubber.

In this embodiment, the feeding metering assembly further includes an adjusting screw 5, the adjusting screw 5 penetrates through the side wall of the feeding cylinder 4 to be connected with the elastic membrane 6, and the elastic membrane 6 is extended or contracted inside the feeding cylinder 4 by screwing in or screwing out the adjusting screw 5. The number of threads on the adjusting screw 5 corresponds to the volume of the feeding cylinder 4, the adjusting screw 5 is screwed to the corresponding number of threads according to the calculated sludge feeding amount, the elastic membrane 6 generates a corresponding deformation amount in the feeding cylinder 4, and the volume of the feeding cylinder 4 can be adjusted to a required value.

In the embodiment, the feeding cylinder 4 is arranged between the discharge hole of the feeding hopper 1 and the feed inlet of the anaerobic tank 3, and the valves are arranged at the two ends of the feeding cylinder 4 to control the on-off of the feeding cylinder, so that the sludge feeding is completed without opening the anaerobic tank 3, the anaerobic tank 3 is ensured to be always in a completely anaerobic state, and the anaerobic digestion effect of the sludge is improved. Meanwhile, still set up elastic membrane 6 at feeding section of thick bamboo 4 internal seal, adjusting screw 5 passes the lateral wall and the elastic membrane 6 of feeding section of thick bamboo 4 and is connected, through precession or screw-out adjusting screw 5 in order to realize that elastic membrane 6 extends or contracts in feeding section of thick bamboo 4 is inside, the inside volume of feeding section of thick bamboo 4 has just also been changed correspondingly, the accurate measurement to mud feeding volume has been realized, both avoided the produced error of artifical measurement, the precision of experimental result has been improved, operating personnel's intensity of labour has effectively been reduced again. It can be understood that the elastic membrane 6 has a certain thickness, and in the range of the amount of sludge required by the experiment, when the feeding cylinder 4 is filled with sludge, the elastic membrane 6 cannot be elastically deformed due to the extrusion of the sludge, and only the deformation amount of the elastic membrane 6 is changed by the adjusting screw 5.

As shown in FIG. 1, in this embodiment, the experimental apparatus for anaerobic digestion of sludge further comprises a cleaning component 2 communicated with the feeding hopper 1, and the feeding hopper 1 and the feeding metering component are cleaned by the cleaning component 2.

Further, the cleaning assembly 2 comprises a water inlet valve 21 and a water inlet pipe 22, the water inlet pipe 22 is connected with the bottom of the feed hopper 1, and the on-off of the water inlet pipe 22 is controlled through the water inlet valve 21. It is understood that the inlet valve 21 may be a common valve such as a ball valve, as long as the inlet control of the inlet pipe 22 can be realized. In this embodiment, discharge gate 31 through 3 bottoms of anaerobic jar settings can discharge anaerobic digestion treatment back mud fast, also can discharge the produced sewage of washing feeder hopper 1 and feeding measurement subassembly.

In this embodiment, through set up inlet valve 21 and inlet tube 22 in the bottom of feeder hopper 1, can wash feeder hopper 1 and feed cylinder 4 at any time, improved the cleanliness of feeder hopper 1 and feed cylinder 4, avoided the mud sample cross contamination in different sources, improved the degree of accuracy and the reliability of mud anaerobic digestion treatment experimental result.

As shown in figure 1, when in operation, the first valve 7 and the second valve 8 at the two ends of the feeding cylinder 4 are closed, and a sludge sample is added into the feeding hopper 1; then according to the calculated sludge feeding amount, rotating the adjusting screws 5 on the two sides of the feeding cylinder 4 to the corresponding thread number, so that the elastic membranes 6 on the two sides inside the feeding cylinder 4 are stretched to the corresponding deformation amount, and adjusting the inside of the feeding cylinder 4 to the required volume; then, a first valve 7 at the upper end of the feeding cylinder 4 is opened, and the sludge in the feeding hopper 1 enters the feeding cylinder 4 through the first valve 7; after the feeding cylinder 4 is filled with sludge, the first valve 7 is closed, the amount of sludge in the feeding cylinder 4 is the calculated amount of sludge to be fed into the anaerobic tank 3 for anaerobic digestion treatment, the second valve 8 at the lower end of the feeding cylinder 4 is opened, the sludge enters the anaerobic tank 3, and the second valve 8 is closed, so that subsequent experimental operation can be performed in the anaerobic tank 3. After the experiment is finished, the water inlet valve 21 can be opened, clean water is introduced into the feed hopper 1, and the feed hopper 1 and the feed cylinder 4 are cleaned.

Although the present invention has been described with reference to the preferred embodiments, it is not intended to limit the present invention. Those skilled in the art can make numerous changes and modifications to the disclosed embodiments, or modify equivalent embodiments, without departing from the spirit and scope of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent replacement, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a mud anaerobic digestion experimental apparatus with feeding measurement subassembly which characterized in that includes: the device comprises a feed hopper (1), an anaerobic tank (3) and a feed metering component with adjustable volume; one end of the feeding metering component is connected with a discharge hole of the feed hopper (1), the other end of the feeding metering component is connected with a feed inlet of the anaerobic tank (3), and the feeding metering component is used for metering the amount of sludge entering the anaerobic tank (3).

2. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 1, characterized in that the feeding metering component comprises a feeding cylinder (4) with adjustable volume, one end of the feeding cylinder (4) is connected with the discharge hole of the feeding hopper (1), and the other end is connected with the feeding hole of the anaerobic tank (3).

3. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 2, characterized in that the feeding metering component further comprises a second valve (8), the second valve (8) is positioned at the end of the feeding cylinder (4) close to the anaerobic tank (3) and is used for switching on and off the feeding cylinder (4).

4. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 3, characterized in that the feeding metering component further comprises an elastic membrane (6), the elastic membrane (6) is arranged inside the feeding cylinder (4), the edge of the elastic membrane (6) is connected with the inner side wall of the feeding cylinder (4) in a sealing way, and the deformation amount of the elastic membrane (6) is changed to realize the volume adjustment of the feeding cylinder (4).

5. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 4, characterized in that the feeding metering component further comprises an adjusting screw (5), the adjusting screw (5) penetrates through the side wall of the feeding cylinder (4) to be connected with the elastic membrane (6), and the adjusting screw (5) is screwed in or out to realize the expansion or contraction of the elastic membrane (6) in the feeding cylinder (4).

6. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 5, characterized in that the elastic membrane (6) is made of silica gel or rubber.

7. The experimental device for anaerobic digestion of sludge with a feeding metering component as claimed in claim 3, characterized in that the feeding metering component further comprises a first valve (7), the first valve (7) is positioned at the end of the feeding cylinder (4) close to the feeding hopper (1) and is used for controlling the on-off of the feeding cylinder (4).

8. The experimental apparatus for anaerobic digestion of sludge with feeding material metering assembly as claimed in claim 7, wherein said first valve (7) and second valve (8) are gate valves.

9. The experimental facility for sludge anaerobic digestion with a feeding material metering component as claimed in any one of claims 1 to 8, characterized in that the experimental facility for sludge anaerobic digestion further comprises a cleaning component (2), and the cleaning component (2) is used for cleaning the feeding hopper (1) and the feeding material metering component.

10. The experimental device for anaerobic digestion of sludge with a feeding material metering component as claimed in claim 9, wherein the cleaning component (2) comprises a water inlet valve (21) and a water inlet pipe (22), the water inlet pipe (22) is connected with the bottom of the feeding hopper (1), and the water inlet valve (21) is used for controlling the on-off of the water inlet pipe (22).