Cyclone separator used for petrochemical industry and provided with screening device and capable of separating agglomerated sludge

Abstract

The utility model relates to a cyclone separator with a sifter and capable of separating agglomerated sludge in the petrochemical industry, which mainly comprises a conical cyclone pipe and the sifter, and the conical cyclone pipe is provided with a feed port, an overflow port and an underflow port; a first screening device is mounted at the feeding hole, a second screening device is mounted at the overflow hole, and the screening precision of the first screening device is different from that of the second screening device; the front end of the feeding hole is connected with a submersible pump through a water inlet pipeline; and the overflow port and the underflow port are connected with a water outlet pipeline. According to the design, agglomerated sludge smaller than granular sludge is separated out and reused by utilizing the cyclone separator, and the screening devices with different precisions are added at the inlet and the overflow port of the equipment, so that the separation efficiency of the agglomerated sludge can be obviously enhanced.

Description

Technical Field

[0001] This utility model relates to a hydrocyclone separator, specifically a hydrocyclone separator with a screening device for separating agglomerated sludge in the petrochemical industry. Background Technology

[0002] Hydrocyclone separation technology, as a mature fluid handling method, has demonstrated its unique advantages in many industrial fields since the early 20th century. A hydrocyclone separator, also known as a hydrocyclone or centrifugal sedimentation tank, is a highly efficient device that utilizes a strong centrifugal force field to achieve solid-liquid or liquid-liquid separation.

[0003] In the petrochemical wastewater treatment industry, wastewater treatment plants often operate at low loads, resulting in low substrate concentrations in the biological treatment tanks. This is unfavorable for the formation of granular sludge, leading to very low treatment efficiency. Furthermore, the sludge can age and cause blockages. Existing hydrocyclones cannot accurately screen sludge of different particle sizes, and their solid-liquid separation effect cannot meet the requirements of the petrochemical industry. Therefore, designing a hydrocyclone with a screening device to separate agglomerated sludge for the petrochemical industry is particularly important to solve these problems. Summary of the Invention

[0004] To address the aforementioned problems, this invention designs a hydrocyclone separator with a screening device for separating agglomerated sludge in the petrochemical industry. The hydrocyclone separator separates agglomerated sludge smaller than the diameter of granular sludge particles for reuse. By adding fine screening devices at the equipment inlet and overflow outlet, the separation efficiency of agglomerated sludge is significantly enhanced, sludge aging is prevented, and large particulate impurities can be removed.

[0005] To solve the above-mentioned technical problems, this utility model provides a hydrocyclone separator with a screening device for separating agglomerated sludge in the petrochemical industry. The separator is characterized by comprising a conical hydrocyclone tube and a screening device disposed within the conical hydrocyclone tube. The screening device is installed inside the conical hydrocyclone tube. An inlet is provided on the side wall of the conical hydrocyclone tube, which is connected to a submersible pump via a water inlet pipeline. An overflow port is provided at the top of the conical hydrocyclone tube, which is connected to a first water outlet pipeline. An underflow port is provided at the bottom of the conical hydrocyclone tube, which is connected to a second water outlet pipeline. Two screening devices are provided: a first screening device and a second screening device. The second screening device is installed inside the upper end of the conical hydrocyclone tube, and the first screening device is installed inside the inlet.

[0006] Furthermore: the conical cyclone tube is composed of an upper cylindrical section and a lower conical section connected together, the overflow port is in the shape of an inverted cone and is connected to the upper end of the cylindrical section, and the feed port is located on the side wall of the cylindrical section below the second screener.

[0007] Furthermore: the water inlet pipeline is a three-way pipeline, with its first end connected to the submersible pump and equipped with a first valve, its second end connected to the feed inlet, and its third end equipped with a second valve.

[0008] Furthermore, a flow meter is installed on each of the aforementioned inlet pipe, the first outlet pipe, and the second outlet pipe. The flow meter on the inlet pipe between the submersible pump and the first valve is the first flow meter, the flow meter on the first outlet pipe is the second flow meter, and the flow meter on the second outlet pipe is the third flow meter.

[0009] The beneficial effects of this utility model after adopting the above structure are as follows:

[0010] This invention utilizes a hydrocyclone separator to separate and reuse aggregated sludge smaller than the diameter of granular sludge. By adding fine screens at the equipment inlet and overflow outlet, the separation efficiency of aggregated sludge is significantly enhanced, sludge aging is prevented, and large particulate impurities can be removed.

[0011] This invention utilizes the principle of centrifugal force to create a high-speed rotating vortex within a conical shell. Combined with a specially designed screening system, it achieves precise screening of sludge of different particle sizes, thus optimizing the solid-liquid separation effect.

[0012] This design simplifies operation, shortens settling time, and improves the separation efficiency of aggregated sludge. It effectively addresses the problems of escape, wear, and clogging in existing technologies, and is suitable for petrochemical industry applications, demonstrating significant technological progress and practical application value. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] In the diagram: 1 is a submersible pump, 2 is the first flow meter, 3 is the first valve, 4 is the inlet pipe, 5 is the second valve, 6 is the feed inlet, 7 is the first screener, 8 is the overflow port, 9 is the second screener, 10 is the first outlet pipe, 11 is the conical vortex tube, 12 is the underflow port, 13 is the second outlet pipe, 14 is the third flow meter, and 15 is the second flow meter. Detailed Implementation

[0016] like Figure 1The diagram shows a hydrocyclone separator with a screening device for separating agglomerated sludge in the petrochemical industry. It includes a conical hydrocyclone tube 11 and a screening device installed inside the conical hydrocyclone tube. The screening device is installed inside the conical hydrocyclone tube 11. An inlet 6 is provided on the side wall of the conical hydrocyclone tube 11, and the inlet is connected to a submersible pump 1 via a water inlet pipeline 4. An overflow port 8 is provided at the top of the conical hydrocyclone tube, and the overflow port is connected to a first water outlet pipeline 10. An underflow port 12 is provided at the bottom of the conical hydrocyclone tube, and the underflow port is connected to a second water outlet pipeline 13. Two screening devices are provided: a first screening device 7 and a second screening device 9. The second screening device is installed inside the upper end of the conical hydrocyclone tube, and the first screening device is installed inside the inlet. The sludge pumped by the submersible pump enters the cyclone conical tube 11 through the feed inlet 6 and is first filtered by the first screen 7. The maximum size of the first screen 7 should be larger than the diameter of the agglomerated sludge to ensure that the sample containing agglomerated sludge can pass through the first screen 7 into the cyclone conical tube 11. After entering the cyclone conical tube 11, under the action of centrifugal force, a high-speed rotating vortex is formed in the conical shell. The denser agglomerated sludge will gradually move downward, while the less dense flocculent sludge will swirl upward. During the upward swirling of the flocculent sludge, it will be selectively filtered by the second screen 9. The actual design size of the second screen 9 is smaller than the diameter of the agglomerated sludge particles, which can trap the agglomerated sludge in the cyclone conical tube 11 and make it settle downward. The small flocculent sludge particles will be discharged from the overflow port 8 after passing through the second screen 9. The agglomerated sludge, after high-speed rotation in the cyclone conical tube 11, settles rapidly under the action of centrifugal force and is discharged through the underflow port 12. This invention utilizes a hydrocyclone separator to separate and reuse aggregated sludge smaller than the diameter of granular sludge. By adding fine screens at the equipment inlet and overflow outlet, the separation efficiency of aggregated sludge is significantly enhanced, sludge aging is prevented, and large particulate impurities can be removed. Furthermore, this invention utilizes the principle of centrifugal force to form a high-speed rotating vortex inside the conical shell. Combined with a specially designed screening system, it achieves precise screening of sludge of different particle sizes and optimizes the solid-liquid separation effect.

[0017] like Figure 1 The conical cyclone tube shown is composed of an upper cylindrical section and a lower conical section connected together. The overflow port is in the shape of an inverted cone and is connected to the upper end of the cylindrical section. The feed port is located on the side wall of the cylindrical section below the second screener.

[0018] like Figure 1The inlet pipeline 4 shown is a three-way pipeline. Its first end is connected to the submersible pump 1 and is equipped with a first valve 3. Its second end is connected to the feed inlet 6, and its third end is equipped with a second valve 5. The submersible pump 1 extracts activated sludge from the biochemical tank of the petrochemical wastewater treatment plant and sends it to the vortex cone tube 11 through the inlet pipeline 4. The flow rate into the vortex cone tube 11 can be controlled by the first valve 3. The second valve 5 is located at the rear end of the inlet pipeline. If all the liquid needs to enter the vortex cone tube 11, the second valve 5 can be completely closed. If it is necessary to take raw water samples for data measurement, the second valve 5 is opened. The liquid will not flow into the feed inlet 6 of the vortex cone tube 11 through the inlet pipeline 4, but will flow out directly through the second valve 5, thus obtaining the activated sludge sample extracted from the petrochemical wastewater by the submersible pump 1.

[0019] like Figure 1 Each of the following three water outlet lines is equipped with a flow meter: the inlet pipe 4, the first outlet pipe 10, and the second outlet pipe 13. The flow meter on the inlet pipe 4 (between the submersible pump and the first valve) is the first flow meter 2; the flow meter on the first outlet pipe 10 is the second flow meter 15; and the flow meter on the second outlet pipe 13 is the third flow meter 14. Since flow rate is a crucial factor affecting the hydrocyclone separator, the valve 3 controls the flow rate entering the cyclone cone pipe 11. The first flow meter 2 accurately measures the liquid flow rate entering the feed inlet 6. Furthermore, the second and third flow meters can monitor the flow rates of the first and second outlet pipes in real time.

[0020] In summary, this design simplifies operation, shortens settling time, and improves the separation efficiency of aggregated sludge. It effectively addresses the problems of escape, wear, and clogging in existing technologies, making it suitable for petrochemical industry applications and demonstrating significant technological advancements and practical application value.

[0021] The above are merely preferred embodiments of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are within its protection scope. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should be considered within its protection scope.

Claims

1. A hydrocyclone separator with a screening device for separating agglomerated sludge in the petrochemical industry, characterized in that: The device includes a conical cyclone tube (11) and a screener installed inside the conical cyclone tube. The screener is installed inside the conical cyclone tube (11). The side wall of the conical cyclone tube (11) is provided with a feed inlet (6). The feed inlet is connected to a submersible pump (1) through a water inlet pipeline (4). The top of the conical cyclone tube is provided with an overflow port (8). The overflow port is connected to a first water outlet pipeline (10). The bottom of the conical cyclone tube is provided with a bottom outlet (12). The bottom outlet is connected to a second water outlet pipeline (13). There are two screeners, namely a first screener (7) and a second screener (9). The second screener is installed inside the upper end of the conical cyclone tube, and the first screener is installed inside the feed inlet. The conical cyclone tube is composed of an upper cylindrical section and a lower conical section connected together. The overflow port is in the shape of an inverted cone and is connected to the upper end of the cylindrical section. The feed port is located on the side wall of the cylindrical section below the second screener. The water inlet pipeline (4) is a three-way pipeline. Its first end is connected to the submersible pump (1) and a first valve (3) is installed on it. Its second end is connected to the feed inlet (6) and a second valve (5) is installed on its third end. Each of the water inlet pipeline (4), the first water outlet pipeline (10), and the second water outlet pipeline (13) 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 (15), and the flow meter on the second water outlet pipeline (13) is the third flow meter (14).

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