Device for granulating sludge after hydrocyclone separation of agglomerated sludge in refining industry

Abstract

The utility model relates to a device for granulating sludge after cyclone separation of agglomerated sludge in the refining industry, which mainly comprises a conical cyclone pipe provided with a feed port, an overflow port and an underflow port. A water inlet pipeline at the front end of the feeding hole is connected with a flow meter and a submersible pump; water outlet pipelines of the overflow port and the underflow port are connected with flowmeters; a water outlet pipeline of the underflow port is connected with the sedimentation tank; the sedimentation tank is provided with a medicine adding pipeline; an aerator and a stirrer are arranged in the sedimentation tank; and the sedimentation tank is connected with the biochemical system. Agglomerated sludge is separated out through a conical cyclone pipe and guided into a sedimentation tank, a compacting agent is added to granulate the agglomerated sludge, and granular sludge with good specification is formed and put into a biochemical system again for use.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sewage treatment, specifically relates to a device for granulating sludge after cyclone separation and agglomeration of sludge in refining industry. BACKGROUND

[0002] In the field of refining sewage treatment, the degree of granulation of activated sludge has an important influence on the treatment effect of the biochemical system. The cyclone separation technology can quickly gather dispersed sludge together to form larger agglomerates. The density of the agglomerated sludge increases, and the sludge structure is more compact, with better settling performance. The cyclone separation process may promote the adjustment of the community structure of microorganisms in the sludge, so that the microorganisms in the sludge are more adapted to the treatment environment, improving the biological stability of the sludge. In the further granulation process of sludge, the use amount of densifying agent can be reduced, and the cost is reduced. The granulated sludge has a larger specific surface area, providing more space for the growth and attachment of microorganisms. The rich microbial community can more efficiently degrade organic matter, nitrogen, phosphorus and other pollutants in refining sewage, improving the biological treatment effect. The sludge with high degree of granulation has better settling performance, dewatering performance and biological stability, which is beneficial to improve the treatment efficiency and reduce the treatment cost. However, the existing sludge treatment device has limited effect in promoting sludge granulation, and it is difficult to meet the actual demand, so it is particularly important to design a device for granulating sludge after cyclone separation and agglomeration of sludge in refining industry to solve this problem. SUMMARY

[0003] The utility model discloses a device for granulating sludge after cyclone separation and agglomeration of sludge in refining industry, which adopts the unique cyclone separation capacity of the conical cyclone pipe to screen out the agglomerated sludge, and effectively promotes the granulation of the sludge by adding chemicals. The granulated sludge is transported into the biochemical system to improve the treatment efficiency of the biochemical system.

[0004] To solve the above technical problems, the utility model provides a device for granulating sludge after cyclone separation and agglomeration of sludge in refining industry, characterized by: including conical cyclone pipe, settling tank and biochemical system, the conical cyclone pipe is provided with feed inlet, overflow outlet and underflow outlet, the feed inlet is arranged on the side wall of the upper end of the conical cyclone pipe, and is connected with the submersible pump through the water inlet pipeline, the overflow outlet is arranged at the top of the conical cyclone pipe, and is connected with the first water outlet pipeline, the underflow outlet of the conical cyclone pipe is connected with the settling tank through the second water outlet pipeline, the second overflow outlet is arranged on the side wall of the upper end of the settling tank, and is connected with the third water outlet pipeline, the settling tank is connected with the biochemical system through the third water outlet pipeline, and the settling tank is also connected with the chemical adding pipeline.

[0005] Further, the water inlet pipeline is a three-way pipeline, a first end of which is connected with the submersible pump and a first valve is installed on the first end, a second end of which is connected with the feeding port, and a second valve is installed on a third end of the pipeline.

[0006] Still further, a flow meter is installed on each of the water inlet pipeline, the first water outlet pipeline and the second water outlet pipeline, wherein the flow meter installed on the water inlet pipeline between the submersible pump and the first valve is a first flow meter, the flow meter installed on the first water outlet pipeline is a second flow meter, and the flow meter installed on the second water outlet pipeline is a third flow meter.

[0007] Still further, an aerator is arranged in the sedimentation tank, and a stirrer is also arranged in the sedimentation tank.

[0008] With the above structure, the unique cyclone separation capacity of the conical cyclone pipe is used to screen out the agglomerated sludge, and the dosing method is used to effectively promote the granulation of the sludge, and the granulated sludge is transported into the biochemical system to improve the treatment efficiency of the biochemical system. BRIEF DESCRIPTION OF DRAWINGS

[0009] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.

[0010] Figure 1 The figure is a structural schematic view of the utility model.

[0011] In the figure, 1 is a submersible pump, 2 is a first flow meter, 3 is a first valve, 4 is a water inlet pipeline, 5 is a second valve, 6 is a feeding port, 7 is a conical cyclone pipe, 8 is an overflow port, 9 is an underflow port, 10 is a first water outlet pipeline, 11 is a second water outlet pipeline, 12 is a third flow meter, 13 is a second flow meter, 14 is an aerator, 15 is a stirrer, 16 is a sedimentation tank, 17 is a medicine adding pipeline, 18 is a third water outlet pipeline, and 19 is a biochemical system. DETAILED DESCRIPTION

[0012] As Figure 1The utility model discloses a device for the granulation of agglomerated sludge after cyclone separation in the refining industry, comprising a conical cyclone tube 7, a settling tank 16 and a biochemical system 19, wherein the conical cyclone tube 7 is provided with a feed inlet 6, an overflow outlet 8 and an underflow outlet 9, the feed inlet 6 is arranged on the side wall of the upper end of the conical cyclone tube 7 and is connected to a submersible pump 1 through a water inlet pipeline 4, the overflow outlet 8 is arranged at the top of the conical cyclone tube 7 and is connected to a first water outlet pipeline 10, the underflow outlet 9 of the conical cyclone tube 7 is connected to the settling tank 16 through a second water outlet pipeline 11, a second overflow outlet is arranged on the side wall of the upper end of the settling tank 16 and is connected to a third water outlet pipeline 18, the settling tank 16 is connected to the biochemical system 19 through the third water outlet pipeline 18, and the settling tank 16 is also connected to a medicament adding pipeline 17. The submersible pump 1 is used to pump out activated sludge, which is then sent to the cyclone conical tube 7 through the water inlet pipeline 4. After the activated sludge enters the cyclone conical tube 7, it forms a high-speed rotating vortex in the conical shell under the action of centrifugal force. The agglomerated sludge with a larger density will gradually move downward, while the flocculent sludge with a smaller density will rotate upward. The agglomerated sludge in the cyclone conical tube 7 sinks downward. The flocculent sludge with small particles is discharged from the overflow outlet 8 and is discharged from the first water outlet pipeline. The agglomerated sludge is rapidly settled by the action of centrifugal force and is discharged from the underflow outlet 9 into the settling tank. The densifying agent is added to the settling tank through the medicament adding pipeline 17. The densifying agent promotes the granulation of the sludge, so that the granulated sludge is transported into the biochemical system to improve the treatment efficiency of the biochemical system.

[0013] As Figure 1The water inlet pipeline 4 is a three-way pipeline, a first end of which is connected with the submersible pump 1 and a first valve 3 is installed on the first end, a second end of which is connected with the feed inlet 6, and a second valve 5 is installed on a third end; a flow meter is installed on each of the water inlet pipeline 4, the first water outlet pipeline 10 and the second water outlet pipeline 11, wherein the flow meter on the water inlet pipeline 4 between the submersible pump and the first valve is a first flow meter 2, the flow meter on the first water outlet pipeline 10 is a second flow meter 13, and the flow meter on the second water outlet pipeline 11 is a third flow meter 12. The first flow meter is arranged on the water inlet pipeline 4, and the activated sludge is sent to the cyclone conical pipe through the water inlet pipeline 4 after being measured by the first flow meter; since the flow is an important factor affecting the cyclone separation, the valve 3 can control the flow size entering the cyclone conical pipe 7, and the first flow meter accurately measures the liquid flow size entering the feed inlet 6; the second valve 5 is arranged at the rear end of the water inlet pipeline, and if it is required that the liquid enters the cyclone conical pipe 7 completely, the second valve 5 can be completely closed; if it is required to take raw water samples for data measurement, the second valve 5 is opened, the liquid does not flow into the feed inlet 6 of the cyclone conical pipe 7 through the water inlet pipeline 4, but directly flows out through the second valve 5, and the activated sludge sample drawn by the submersible pump 1 can be obtained. Furthermore, the second flow meter and the third flow meter are arranged on the first water outlet pipeline and the second water outlet pipeline respectively, and the water outlet flow sizes of the first water outlet pipeline and the second water outlet pipeline can be monitored in real time through the second flow meter and the third flow meter, and the sludge discharged from the second water outlet pipeline is rich in a large amount of agglomerated sludge.

[0014] As Figure 1 The settling tank 16 is provided with an aerator 14, and the settling tank 16 is also provided with a stirrer 15. After the densifying agent is added to the settling tank 16 through the medicine adding pipeline 17, the densifying agent can be promoted to fuse with the agglomerated sludge through the arranged aerator. Furthermore, the settling tank 16 is also provided with the stirrer 15, and the reaction rate is accelerated through stirring, so that the agglomerated sludge particles in the settling tank 16 are promoted.

[0015] The above is only the preferred embodiment of the utility model, the protection scope of the utility model is not only limited to the above-mentioned embodiment, and all technical solutions belonging to the utility model idea are the protection scope of the utility model. It should be pointed out that, for the ordinary skilled in the art, some improvements and decorations without departing from the principle of the utility model can be considered as the protection scope of the utility model.

Claims

1. A device for granulating sludge after hydrocyclone separation of agglomerated sludge in the refining and chemical industry, characterized in that: The system includes a conical cyclone tube (7), a sedimentation tank (16), and a biological system (19). The conical cyclone tube (7) is provided with an inlet (6), an overflow port (8), and a bottom outlet (9). The inlet (6) is located on the side wall at the upper end of the conical cyclone tube (7) and is connected to the submersible pump (1) through an inlet water pipeline (4). The overflow port (8) is located at the top of the conical cyclone tube (7) and is connected to the first outlet water pipeline (10). The bottom outlet (9) of the conical vortex tube (7) is connected to the sedimentation tank (16) through the second outlet pipeline (11). The sedimentation tank (16) has a second overflow outlet on the upper side wall, which is connected to the third outlet pipeline (18). The sedimentation tank (16) is connected to the biochemical system (19) through the third outlet pipeline (18). The sedimentation tank (16) is also connected to the drug addition pipeline (17).

2. The apparatus for granulating sludge after hydrocyclone separation of agglomerated sludge in the refining and chemical industry, as described in claim 1, is characterized in that: The water inlet pipeline (4) is a three-way pipeline, with its first end connected to the submersible pump (1) and a first valve (3) installed on it, its second end connected to the feed inlet (6), and a second valve (5) installed on its third end.

3. The apparatus for granulating sludge after hydrocyclone separation of agglomerated sludge in the refining and chemical industry, as described in claim 1, is characterized in that: Each of the water inlet pipeline (4), the first water outlet pipeline (10), and the second water outlet pipeline (11) is equipped with a flow meter. The flow meter on the water inlet pipeline (4) between the submersible pump and the first valve is the first flow meter (2), the flow meter on the first water outlet pipeline (10) is the second flow meter (13), and the flow meter on the second water outlet pipeline (11) is the third flow meter (12).

4. The apparatus for granulating sludge after hydrocyclone separation of agglomerated sludge in the refining and chemical industry, as described in claim 1, is characterized in that: The settling tank (16) is equipped with an aerator (14) and a mixer (15).

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