A twin-body gas-liquid separator for a pusher centrifuge for direct separation of heavy bases

Abstract

The utility model discloses a kind of double-body gas-liquid separators of pusher centrifuge for heavy alkali direct separation, it is related to centrifuge technical field, including product chamber, waste scrubbing liquid gas-liquid separator and circulating scrubbing liquid gas-liquid separator. Product chamber is provided with baffle along radial direction, and is separated into inside and outside independent area, outer wall is correspondingly provided with product chamber liquid discharge flange one and two, respectively with the method flange of circulating scrubbing liquid gas-liquid separator, the method flange of waste scrubbing liquid gas-liquid separator is connected by bolt and is provided with sealing gasket. When working, inside waste liquid enters separator under centrifugal force through flange two, gas is discharged by top exhaust flange after separation, liquid is discharged by bottom liquid discharge flange;Outside scrubbing liquid enters separator through flange one, gas is discharged by top exhaust flange after separation, liquid is recycled and reused by bottom liquid discharge flange. The device realizes scrubbing liquid grading recovery by double-body independent separation, reduces scrubbing water consumption, reduces energy consumption, and is suitable for energy-saving and consumption-reducing demand of heavy alkali separation process.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a dual-body gas-liquid separator for a pusher centrifuge used for direct separation of heavy alkali. Background Technology

[0002] In the field of pusher centrifuges used for direct separation of heavy alkali, the gas-liquid separator is a key component for achieving gas-liquid separation and recovery of filtrate and washing liquid. Its structural design directly affects separation efficiency and resource utilization. In existing technologies, the product chamber of pusher centrifuges is usually equipped with only a single gas-liquid separator. All filtrate and washing liquid from different stages are mixed and processed through the same gas-liquid separator, making it impossible to differentiate the recovery of washing liquids with different cleanliness levels. The recyclable outer washing liquid is mixed with the inner washing liquid and filtrate that need to be treated as waste liquid and discharged together. This not only wastes reusable washing liquid and increases the overall consumption of washing water, but also increases the energy consumption of subsequent waste liquid treatment due to the mixed processing, making it difficult to meet the production requirements of energy saving and consumption reduction. To address the shortcomings of existing technologies where a single gas-liquid separator cannot achieve the classified recovery of washing liquid from different areas, this utility model aims to provide a dual-body gas-liquid separator that can collect and separate washing liquids with different cleanliness levels separately by optimizing the product chamber structure and gas-liquid separator configuration. This enables the graded recovery and utilization of washing liquid, thereby reducing washing water consumption and energy consumption.

[0003] Chinese Patent CN120437766A discloses a novel gas-liquid separator, comprising an outer ring seat and an inner ring seat. An air intake hood is fitted inside the outer ring seat, and a turbofan unit is installed at the bottom of the air intake hood. A feed seat is fixedly connected to the bottom of the turbofan unit, and a feed valve seat is fixedly connected to the bottom of the feed seat. A feed ring mesh is provided on the surface of the feed seat, and an exhaust arc hood is fixedly connected to the back of the outer ring seat. This invention, through the volute separation structure composed of the outer ring seat and the air intake hood, enables continuous and efficient centrifugal gas-liquid separation of the gas-liquid mixture entering the equipment. In practical use, it modifies and innovates upon conventional inlet separators, employing a multi-stage gas-liquid separation system with a specially designed volute shape. A square air inlet connects to the gas-liquid mixture inlet box in the middle. After the gas-liquid mixture enters, it drives the turbine blades in the middle of the volute separation cylinder to rotate at high speed. The aforementioned device employs a single-unit volute separation structure consisting of an outer ring seat, an intake hood, and a turbofan unit. It relies on the centrifugal force generated by the high-speed rotation of the turbine blades to achieve gas-liquid separation. Structurally, it is a single-cavity design without physical partitions or independent separation units. Therefore, those skilled in the art urgently need to solve the aforementioned technical problems. Summary of the Invention

[0004] The present invention aims to solve the above-mentioned prior art, improve the separation efficiency of gas and liquid, and realize the graded recovery of washing liquid.

[0005] The technical solutions adopted in this utility model are as follows: A dual-body gas-liquid separator for a pusher centrifuge used for direct separation of heavy alkali includes a product chamber, a waste washing liquid gas-liquid separator, and a circulating washing liquid gas-liquid separator. The product chamber is equipped with a partition that divides the product chamber into two independent areas. The outer wall of the product chamber is provided with a product chamber drain flange one and a product chamber drain flange two, which are connected to the two independent areas one by one. The first product chamber drain flange is connected to the circulating washing liquid gas-liquid separator flange of the circulating washing liquid gas-liquid separator, and the second product chamber drain flange is connected to the waste washing liquid gas-liquid separator flange of the waste washing liquid gas-liquid separator.

[0006] By adopting the above technical solution, this device is assembled from a product chamber, a waste washing liquid gas-liquid separator, and a circulating washing liquid gas-liquid separator. The product chamber is internally divided into two independent areas by a partition. The outer wall of the product chamber is equipped with two drain flanges corresponding to the two areas, respectively, and these flanges are connected to the circulating washing liquid gas-liquid separator flange and the waste washing liquid gas-liquid separator flange, respectively. This assembly relationship overcomes the limitations of traditional single gas-liquid separators for mixed processing. The dual-body independent separation layout provides the hardware foundation for the classified recovery of liquids from different areas, making subsequent differentiated processing possible and structurally solving the problem of the inability to classify and recover washing liquids in existing technologies.

[0007] Furthermore, the partition is arranged along the radial direction of the product chamber, dividing the product chamber into an inner area and an outer area. The inner area is connected to the product chamber drain flange two, and the outer area is connected to the product chamber drain flange one.

[0008] By adopting the above technical solution, the partition inside the product chamber is arranged radially, dividing the product chamber into an inner area and an outer area. The inner area is connected to the product chamber drain flange 2, and the outer area is connected to the product chamber drain flange 1. The radially arranged partition can be adapted to the centrifugal separation process of a push-feed centrifuge. Utilizing the difference in liquid distribution in the radial direction under the action of centrifugal force, the outer washing liquid has a higher purity, while the inner mixed filtrate has more impurities. This achieves physical isolation of liquids with different purity levels, ensuring that the waste liquid in the inner area and the recyclable washing liquid in the outer area are completely separated during the collection stage, avoiding mixing and contamination, and providing a prerequisite for subsequent accurate separation and recovery.

[0009] Furthermore, the waste washing liquid gas-liquid separator is provided with an exhaust flange at the top, a drain flange at the bottom, and a side flange.

[0010] By adopting the above technical solution, the waste washing liquid gas-liquid separator is equipped with an exhaust flange at the top, a drain flange at the bottom, and a side flange. The top exhaust flange utilizes the low density of gas to allow the separated gas to rise and exit naturally, avoiding gas stagnation that could affect separation efficiency. The bottom drain flange utilizes the liquid's own weight to achieve natural drainage, reducing liquid residue within the separator. The side flange connects to the product chamber drain flange, ensuring that the gas-liquid mixture flowing from the product chamber can smoothly enter the separator. The three components work together to ensure that the waste washing liquid gas-liquid separator can efficiently complete gas-liquid separation and directional discharge of waste liquid.

[0011] Furthermore, the top of the circulating washing liquid gas-liquid separator is provided with an exhaust flange, the bottom is provided with a drain flange, and the side is provided with a side flange.

[0012] By adopting the above technical solution, the circulating washing liquid gas-liquid separator is equipped with an exhaust flange at the top, a drain flange at the bottom, and a side flange. This design specifically optimizes the processing requirements of the recyclable washing liquid: the top exhaust flange quickly discharges gas, preventing gas from mixing with the recovered liquid and affecting its purity; the bottom drain flange allows the separated clean washing liquid to be directly discharged and reused, reducing transportation energy consumption; the side flange connects to the product chamber drain flange, ensuring that the clean washing liquid in the outer area enters the separator independently, achieving complete isolation from waste liquid and ensuring the cleanliness of the recovered liquid meets reuse standards.

[0013] Furthermore, the waste washing liquid gas-liquid separator flange and the product chamber drain flange are fixedly connected by bolts, and a sealing gasket is provided between the flange end faces of the two.

[0014] By adopting the above technical solution, the flange of the waste washing liquid gas-liquid separator and the product chamber drain flange are fixedly connected by bolts, and a sealing gasket is provided between the flange end faces of the two. The bolt connection has the characteristics of high connection strength and convenient disassembly, ensuring that the separator and the product chamber maintain a stable connection during centrifuge operation and avoiding liquid leakage due to loose connection. The sealing gasket can effectively fill the micro gaps on the flange end face, preventing the gas-liquid mixture from leaking at the connection, ensuring the sealing of the separation process, and avoiding material loss and environmental pollution caused by leakage.

[0015] Furthermore, the flange of the circulating washing liquid gas-liquid separator is fixedly connected to the product chamber drain flange by bolts, and a sealing gasket is provided between the flange end faces of the two.

[0016] By adopting the above technical solution, the flange of the circulating washing liquid gas-liquid separator and the product chamber drain flange are fixedly connected by bolts, and a sealing gasket is provided between the flange end faces of the two. The bolt fixing ensures the connection stability between the circulating washing liquid gas-liquid separator and the product chamber, adapting to frequent start-up and shutdown conditions during long-term reuse; the sealing gasket prevents the recirculating washing liquid from leaking at the connection point, ensuring the recovery rate of the recovered liquid, reducing resource waste caused by leakage, and preventing external impurities from entering the recovered liquid, ensuring the cleanliness of the reused washing liquid, and indirectly improving the quality stability of the heavy alkali separation product.

[0017] This utility model has the following beneficial effects: 1. This utility model, through the assembly structure of an internal partition and a dual-body gas-liquid separator, divides the product chamber into two independent areas and connects them to the waste washing liquid gas-liquid separator and the circulating washing liquid gas-liquid separator, thereby realizing the classified collection and independent separation of liquids in different areas. It breaks through the limitation of traditional single gas-liquid separators for mixed processing, provides a hardware foundation for the graded recycling of washing liquid, and solves the problem that washing liquid cannot be differentiated in the prior art.

[0018] 2. This utility model sets the product chamber partition along the radial direction, so that the inner and outer areas are respectively connected to the waste washing liquid and the circulating washing liquid gas-liquid separator, which is adapted to the centrifugal separation process of the pusher centrifuge. It uses the difference in cleanliness of the liquid in the radial direction under the action of centrifugal force to achieve physical isolation, ensuring that the waste liquid and the recyclable washing liquid are completely separated in the collection stage, avoiding mixing and contamination, and providing a prerequisite guarantee for accurate recycling. 3. This utility model uses exhaust flanges at the top and drain flanges at the bottom of the waste washing liquid gas-liquid separator and the circulating washing liquid gas-liquid separator. By utilizing the low density of gas and the self-weight of liquid, the separated gas naturally rises and is discharged, and the liquid naturally drains, reducing gas retention and liquid residue, and improving gas-liquid separation efficiency. At the same time, the side flange is connected to the product chamber flange to ensure that the gas-liquid mixture enters the separator smoothly and ensures that the separation process is stable. 4. This utility model uses bolts to fix the gas-liquid separator flange to the product chamber drain flange, and sets a sealing gasket on the flange end face. This not only utilizes the high strength and easy disassembly characteristics of bolt connection to ensure a stable connection during operation, but also uses the sealing gasket to fill the gap to prevent leakage, avoid material loss and environmental pollution, and at the same time ensure the recovery rate and cleanliness of the recyclable washing liquid, indirectly improving the quality stability of the heavy alkali separation product. Attached Figure Description

[0019] Figure 1 This is a front view of the schematic diagram of the dual-body gas-liquid separator of this utility model; Figure 2 Top view of the schematic diagram of the dual-body gas-liquid separator of this utility model; Figure 3 This utility model presents an internal structural diagram of the product.

[0020] Wherein: 1- Waste washing liquid gas-liquid separator; 101- Waste washing liquid gas-liquid separator exhaust flange; 102- Waste washing liquid gas-liquid separator drain flange; 103- Waste washing liquid gas-liquid separator flange; 2- Circulating washing liquid gas-liquid separator; 201- Circulating washing liquid gas-liquid separator exhaust flange; 202- Circulating washing liquid gas-liquid separator drain flange; 203- Circulating washing liquid gas-liquid separator flange; 3- Product chamber; 301- Product chamber drain flange one; 302- Product chamber drain flange two. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings and specific preferred embodiments.

[0022] In the description of this utility model, it should be understood that the terms "left side," "right side," "upper part," "lower part," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. "First," "second," etc., do not indicate the importance of the components, and therefore should not be construed as a limitation of this utility model. The specific dimensions used in this embodiment are only for illustrating the technical solution and do not limit the protection scope of this utility model.

[0023] Reference Figure 1 , Figure 2 and Figure 3As can be seen, this utility model discloses a dual-body gas-liquid separator for a pusher centrifuge used for direct separation of heavy alkali. The device is mainly assembled from a product chamber 3, a waste washing liquid gas-liquid separator 1, and a circulating washing liquid gas-liquid separator 2. The product chamber 3 is the core collecting component. Its interior is equipped with a partition along the radial direction, which divides the inner cavity into two independent spaces: an inner area and an outer area. This radial partition can be adapted to the centrifugal separation characteristics of the pusher centrifuge, and physical isolation is achieved by utilizing the difference in the radial distribution of liquid under the action of centrifugal force. The outer wall of the product chamber 3 is equipped with a product chamber drain flange 2 302 and a product chamber drain flange 1 301 corresponding to the inner and outer areas, respectively. Both flanges are connected to the inner cavity of the product chamber, forming a partitioned drain channel. Waste washing liquid gas-liquid separator 1 serves as a waste liquid treatment component. It has a waste washing liquid gas-liquid separator flange 103 on its side, which is fixedly connected to the product chamber drain flange 302 by bolts. A sealing gasket is provided between the flange ends of the two. The separator also has a waste washing liquid gas-liquid separator exhaust flange 101 at the top and a waste washing liquid gas-liquid separator drain flange 102 at the bottom, used to discharge the separated gas and waste liquid, respectively. Circulating washing liquid gas-liquid separator 2 serves as a recovery component. It has a circulating washing liquid gas-liquid separator flange 203 on its side, which is fixedly connected to the product chamber drain flange 301 by bolts. A sealing gasket is also provided on the flange end. The separator also has a circulating washing liquid gas-liquid separator exhaust flange 201 at the top and a circulating washing liquid gas-liquid separator drain flange 202 at the bottom, used to discharge the separated gas and reusable washing liquid, respectively. In the overall assembly, the inner area of ​​product chamber 3 is connected to waste washing liquid gas-liquid separator 1 through product chamber drain flange 2 302, and the outer area is connected to circulating washing liquid gas-liquid separator 2 through product chamber drain flange 1 301, ensuring that the waste liquid inside and the recyclable washing liquid outside are completely isolated during the collection and separation process to avoid mixing and contamination.

[0024] In one embodiment, refer to Figure 3As can be seen, during the operation of the centrifuge, the heavy alkali material is separated under centrifugal force. The resulting filtrate and washing liquid from different stages enter the product chamber 3. Due to the radial partition inside the product chamber 3, under centrifugal force, the washing liquid and filtrate with lower cleanliness on the inner side accumulate in the inner area of ​​the product chamber 3, while the washing liquid with higher cleanliness on the outer side is distributed in the outer area of ​​the product chamber 3 due to the greater centrifugal force. The partition physically separates these two types of liquids into two independent areas. The mixed waste liquid in the inner area is discharged through the product chamber drain flange 302 corresponding to the outer wall of the product chamber 3. It enters the waste washing liquid gas-liquid separator 1 through the flange 103, which is bolted to the flange end face and has a sealing gasket to ensure no leakage. In the separator, the gas-liquid mixture naturally separates due to density differences. The gas, being less dense, rises to the top and is discharged through the exhaust flange 101 of the waste washing liquid gas-liquid separator, while the liquid, due to its own weight, sinks to the bottom and is discharged as waste liquid through the drain flange 102 of the waste washing liquid gas-liquid separator. Simultaneously, the recyclable washing liquid from the outer area is discharged through the product chamber drain flange 301 on the outer wall of the product chamber 3. It then enters the recyclable washing liquid gas-liquid separator 2 through the flange 203, which is bolted to the flange end face and has a sealing gasket. Separation is also achieved based on the density difference between gas and liquid; the gas rises to the top and is discharged through the exhaust flange 201 of the recyclable washing liquid gas-liquid separator, while the liquid sinks to the bottom and is discharged through the drain flange 202 of the recyclable washing liquid gas-liquid separator for recycling. Throughout the process, the radial partition of the product chamber 3 ensures complete isolation of the two types of liquid during the collection stage. The dual-body gas-liquid separator operates independently to achieve gas-liquid separation, ultimately realizing the classification, treatment, and recycling of liquids with different cleanliness levels, improving separation efficiency and resource utilization.

[0025] In one embodiment, refer to Figure 3 As can be seen, during the operation of the pusher centrifuge, under the action of centrifugal force, the outer washing liquid with higher cleanliness accumulates in the outer area separated by radial partitions in the product chamber 3 due to the greater centrifugal force. This area is connected to the circulating washing liquid gas-liquid separator 2 via the product chamber drain flange 301 on the outer wall of the product chamber 3 and the circulating washing liquid gas-liquid separator flange 203. The two are fixedly connected by bolts and a sealing gasket is provided to prevent leakage. The outer washing liquid enters the circulating washing liquid gas-liquid separator 2 through this channel. In this separator, the gas-liquid mixture separates naturally based on density differences. The gas rises to the top and is discharged through the circulating washing liquid gas-liquid separator exhaust flange 201. The separated clean liquid falls to the bottom due to its own weight and is discharged through the circulating washing liquid gas-liquid separator drain flange 202. This part of the liquid is the recyclable washing liquid, which flows directly back to the washing system of the pusher centrifuge for washing the heavy alkaline materials again, thereby reducing the amount of fresh washing water used and achieving efficient resource utilization.

[0026] Working principle: During operation of the centrifuge, the heavy alkali material is separated under centrifugal force. The resulting filtrate and washing liquid enter the product chamber 3. Due to the radial partition inside the product chamber 3, the washing liquid and filtrate with lower cleanliness accumulate in the inner area of ​​the product chamber 3 due to the smaller centrifugal force, while the washing liquid with higher cleanliness is distributed in the outer area of ​​the product chamber 3 due to the larger centrifugal force. The partition physically separates these two types of liquids into two independent spaces. The mixed waste liquid in the inner area is discharged through the product chamber drain flange 302 corresponding to the outer wall of the product chamber 3, and enters the waste washing liquid gas-liquid separator 1 through the channel connected to the waste washing liquid gas-liquid separator flange 103 on the side of the waste washing liquid gas-liquid separator 1. In this separator, the gas-liquid mixture naturally separates due to the density difference. The liquid rises to the top and is discharged through the exhaust flange 101 of the waste washing liquid gas-liquid separator, while the liquid falls to the bottom and is treated as waste liquid through the drain flange 102 of the waste washing liquid gas-liquid separator. At the same time, the recyclable washing liquid in the outer area is discharged through the product chamber drain flange 301 on the outer wall of the product chamber 3, and enters the recyclable washing liquid gas-liquid separator 2 through the channel connected to the recyclable washing liquid gas-liquid separator flange 203 on the side of the recyclable washing liquid gas-liquid separator 2. Separation is also achieved based on the difference in gas and liquid density. The gas rises to the top and is discharged through the exhaust flange 201 of the recyclable washing liquid gas-liquid separator, while the liquid falls to the bottom and is discharged through the drain flange 202 of the recyclable washing liquid gas-liquid separator and flows back to the centrifuge washing system for reuse. Thus, the classification and treatment of liquids with different cleanliness levels and resource recovery are achieved through the dual-body independent separation structure.

[0027] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A dual-body gas-liquid separator for a pusher centrifuge used for direct separation of heavy alkali, characterized in that: It includes a product chamber (3), a waste washing liquid gas-liquid separator (1), and a circulating washing liquid gas-liquid separator (2). The product room (3) is equipped with a partition, which divides the interior of the product room (3) into two independent areas; The outer wall of the product chamber (3) is provided with a product chamber drain flange one (301) and a product chamber drain flange two (302) that are connected to the two independent areas one by one. The product chamber drain flange one (301) is connected to the circulating washing liquid gas-liquid separator flange (203) of the circulating washing liquid gas-liquid separator (2), and the product chamber drain flange two (302) is connected to the waste washing liquid gas-liquid separator flange (103) of the waste washing liquid gas-liquid separator (1).

2. The dual-body gas-liquid separator of the pusher centrifuge for direct separation of heavy alkali according to claim 1, characterized in that: The partition is arranged along the radial direction of the product chamber (3) to divide the interior of the product chamber (3) into an inner area and an outer area. The inner area is connected to the product chamber drain flange two (302), and the outer area is connected to the product chamber drain flange one (301).

3. The dual-body gas-liquid separator of the pusher centrifuge for direct separation of heavy alkali according to claim 1, characterized in that: The waste washing liquid gas-liquid separator (1) is provided with a waste washing liquid gas-liquid separator exhaust flange (101) at the top, a waste washing liquid gas-liquid separator drain flange (102) at the bottom, and a waste washing liquid gas-liquid separator side flange (103) on the side.

4. The dual-body gas-liquid separator of the pusher centrifuge for direct separation of heavy alkali according to claim 1, characterized in that: The top of the circulating washing liquid gas-liquid separator (2) is provided with a circulating washing liquid gas-liquid separator exhaust flange (201), the bottom is provided with a circulating washing liquid gas-liquid separator drain flange (202), and the side is provided with a circulating washing liquid gas-liquid separator flange (203).

5. The dual-body gas-liquid separator of the pusher centrifuge for direct separation of heavy alkali according to claim 1, characterized in that: The waste washing liquid gas-liquid separator flange (103) and the product chamber drain flange (302) are fixedly connected by bolts, and a sealing gasket is provided between the flange end faces of the two.

6. The dual-body gas-liquid separator of the pusher centrifuge for direct separation of heavy alkali according to claim 1, characterized in that: The circulating washing liquid gas-liquid separator flange (203) and the product chamber drain flange (301) are fixedly connected by bolts, and a sealing gasket is provided between the flange end faces of the two.

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