Silicon carbide ceramic membrane separation device

Abstract

The utility model discloses a silicon carbide ceramic membrane separation device, which relates to the technical field of ceramic membrane separation and comprises a separation cylinder, an upper cover is arranged above the separation cylinder, a vertically-through mounting pipeline is arranged on the separation cylinder, ceramic membrane pipes are clamped at the upper end and the lower end of the mounting pipeline through hole plates, and the lower end of the upper cover is a connecting wall. The connecting wall is tightly connected with the upper end of the separating cylinder, connecting channels are arranged above the upper cover and below the separating cylinder, a rotating shaft is installed at the upper end of the separating cylinder, a conical blocking net is installed at the top end of the rotating shaft and supported through supporting frameworks arranged in a circumferential array, and the supporting frameworks are provided with blades obliquely extending towards one side. A central shaft penetrating out of the rotating shaft is fixedly arranged at the upper end of the separating cylinder, and a scraping strip is fixedly arranged at the top end of the central shaft. The device is simple in structure, the ceramic membrane tube is protected by blocking precipitates, colloid impurities and the like through the blocking net mechanism, the blocking net can be automatically cleaned, accumulated impurities can be conveniently cleaned, and the device is high in practicability and suitable for popularization.

Description

Technical Field

[0001] This utility model belongs to the field of ceramic membrane separation technology, and specifically relates to a silicon carbide ceramic membrane separation device. Background Technology

[0002] Ceramic membranes, also known as inorganic ceramic membranes, are asymmetric membranes formed from inorganic ceramic materials through a special process. The walls of the ceramic membrane tube are densely covered with micropores. Under pressure, the feed liquid flows inside or outside the membrane tube. Small molecules (or liquids) permeate through the membrane, while large molecules (or solids) are retained by the membrane, thereby achieving separation.

[0003] When existing ceramic membrane separation devices are in use, the incoming liquid contains a large amount of organic matter, easily precipitated substances, colloidal impurities, etc. These substances have an adverse effect on the ceramic membrane, resulting in a shortened service life of the ceramic membrane. Utility Model Content

[0004] The purpose of this invention is to provide a silicon carbide ceramic membrane separation device with a simple structure. It protects the ceramic membrane tube by blocking easily precipitated substances and colloidal impurities through a screen mechanism. The screen can be automatically cleaned, which also facilitates the removal of accumulated impurities. It is highly practical and suitable for widespread application.

[0005] This utility model provides the following technical solution: a silicon carbide ceramic membrane separation device, including a separation cylinder, a top cover on the top of the separation cylinder, an installation pipe running vertically through the separation cylinder, ceramic membrane tubes being held in place at the top and bottom ends of the installation pipe via perforated plates, a connecting wall at the bottom end of the top cover, the connecting wall being tightly connected to the top end of the separation cylinder, and connecting channels being provided above the top cover and below the separation cylinder;

[0006] A rotating shaft is installed at the upper center point of the separation cylinder via a built-in rotating ring. A conical barrier net is installed at the top of the rotating shaft. The barrier net is supported by a circumferential array of support frames. The support frames are fixed below the barrier net and have blades that extend to one side at an angle. A central shaft that passes through the rotating shaft is fixed at the upper end of the separation cylinder. A scraper is fixed at the top of the central shaft and is attached to the top of the barrier net.

[0007] Preferably, the outer wall of the top cover is provided with a circumferential groove, the circumferential groove has an opening above the connecting wall, and the top cover has an inwardly inclined guide wall above the opening.

[0008] Preferably, a fixing ring is fixedly provided at the edge of the barrier net, and the two ends of the support frame are fixedly connected to the top of the fixing ring and the top of the rotating shaft, respectively. The fixing ring is slidably connected to the upper end of the guide wall.

[0009] Preferably, the barrier net has fine mesh, the outer wall of the annular groove is a friction wall, and the upper and lower ends of the friction wall are tightly connected to the annular groove by threads.

[0010] The beneficial effects of this utility model are: simple structure, protection of the ceramic membrane tube by blocking easily deposited substances and colloidal impurities through the screen mechanism, and automatic cleaning of the screen, which also facilitates the removal of accumulated impurities. It is highly practical, as detailed below:

[0011] (1) This utility model is equipped with a barrier net. After the top cover is installed, the two connecting channels are connected to the external differential pressure pipeline. After the liquid enters from the top cover, it first passes through the barrier net. The barrier net blocks larger substances and protects the ceramic membrane tube. When the water flow impacts the blades of the barrier net, the blades are tilted and will deflect to one side when impacted by the water flow, causing the barrier net to rotate. The scraper cleans the outside of the barrier net to prevent the barrier net from being blocked.

[0012] (2) This utility model is provided with an annular groove. When the scraper scrapes off the sediment on the barrier net, since the barrier net is in an inclined state, it is easier for the sediment to slide to both sides of the barrier net and enter the annular groove. The guide wall guides the impact of the water flow towards the middle of the barrier net, so that the sediment deposited in the annular groove is not easily impacted by the water flow. When it is necessary to clean the annular groove, the friction wall is rotated to separate it from the annular groove, so that the outer side of the annular groove can be opened to facilitate the cleaning of the inside. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 This is an overall schematic diagram of the present invention;

[0015] Figure 2 This is a cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the barrier net structure of this utility model;

[0017] The following are marked in the diagram: 1. Separation cylinder; 2. Top cover; 3. Connecting channel; 4. Installation pipeline; 5. Ceramic membrane tube; 6. Barrier net; 7. Circular groove; 8. Guide wall; 9. Connecting wall; 10. Rotating shaft; 11. Support frame; 12. Central shaft; 13. Scraper; 14. Fixing ring; 15. Blade; 16. Friction wall. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] The structural features of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] See Figure 1-2 A silicon carbide ceramic membrane separation device includes a separation cylinder 1, a top cover 2 on the top of the separation cylinder 1, an installation pipe 4 running vertically through the separation cylinder 1, ceramic membrane tubes 5 being held in place at both ends of the installation pipe 4 through perforated plates, and filtration being performed through the ceramic membrane tubes 5. The lower end of the top cover 2 is a connecting wall 9, which is tightly connected to the upper end of the separation cylinder 1. Connecting channels 3 are provided above the top cover 2 and below the separation cylinder 1, and the two connecting channels 3 are connected to an external differential pressure pipeline to connect to the fluid to be filtered.

[0023] See Figure 1-3A rotating shaft 10 is installed at the center of the upper end of the separation cylinder 1 via a built-in rotating ring. A conical barrier net 6 is installed at the top of the rotating shaft 10. The barrier net 6 can rotate via the rotating shaft 10. The barrier net 6 has fine mesh holes to block larger substances. The barrier net 6 is supported by a circular array of support frames 11. The support frames 11 are fixed below the barrier net 6 and have blades 15 that extend to one side at an angle. Since the blades 15 are in an angled state, they will deflect to one side when impacted by water flow. A central shaft 12 is fixed at the upper end of the separation cylinder 1, which passes through the rotating shaft 10. A scraper 13 is fixed at the top of the central shaft 12. The scraper 13 is attached to the top of the barrier net 6. When the barrier net 6 rotates, the scraper 13 cleans the outside of the barrier net 6.

[0024] See Figure 1-3 The outer wall of the top cover 2 is provided with a circumferential groove 7. The groove 7 has an opening above the connecting wall 9. Above the opening, the top cover 2 has an inwardly inclined guide wall 8. The guide wall 8 guides the impact of the water flow towards the middle of the barrier net 6. A fixing ring 14 is fixedly provided at the edge of the barrier net 6. The two ends of the support frame 11 are fixedly connected to the top of the fixing ring 14 and the top of the rotating shaft 10, respectively. The fixing ring 14 is slidably connected to the upper end of the guide wall 8, so that the barrier of the barrier net 6 slides down to the opening of the groove 7. The outer wall of the groove 7 is a friction wall 16. The upper and lower ends of the friction wall 16 are tightly connected to the groove 7 by threads. By rotating the friction wall 16, it is separated from the groove 7, and the outer side of the groove 7 can be opened.

[0025] The silicon carbide ceramic membrane separation device of this invention has a simple structure. It protects the ceramic membrane tube by blocking easily precipitated substances and colloidal impurities through a screen mechanism. The screen can be automatically cleaned, which also makes it easy to clean up accumulated impurities. It is highly practical and suitable for widespread application.

[0026] For specific usage, please refer to... Figure 1-3 After the top cover 2 is installed, the two connecting channels 3 connect to the external differential pressure pipeline. After the liquid enters from the top cover 2, it first passes through the barrier net 6. The barrier net 6 blocks larger substances and protects the ceramic membrane tube 5. When the water flow impacts the blades 15 of the barrier net 6, the blades 15 are tilted and will deflect to one side when impacted by the water flow, causing the barrier net 6 to rotate. The scraper 13 cleans the outside of the barrier net 6. When the scraper 13 scrapes off the deposits on the barrier net 6, the deposits are more likely to slide to both sides of the barrier net 6 and enter the annular groove 7 because the barrier net 6 is tilted. The guide wall 8 guides the impact of the water flow towards the middle of the barrier net 6, so that the deposits in the annular groove 7 are not easily impacted by the water flow. When it is necessary to clean the annular groove 7, the rotating friction wall 16 is used to separate it from the annular groove 7, so that the outside of the annular groove 7 can be opened to clean the inside.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A silicon carbide ceramic membrane separation device, comprising a separation cylinder (1), characterized in that, The separation cylinder (1) is equipped with a top cover (2), and the separation cylinder (1) is provided with an installation pipe (4) that runs vertically through it. Ceramic membrane tubes (5) are placed at both ends of the installation pipe (4) through perforated plates. The lower end of the top cover (2) is a connecting wall (9), which is tightly connected to the upper end of the separation cylinder (1). A connecting channel (3) is provided above the top cover (2) and below the separation cylinder (1). A rotating shaft (10) is installed at the center of the upper end of the separation cylinder (1) via a built-in rotating ring. A conical barrier net (6) is installed at the top of the rotating shaft (10). The barrier net (6) is supported by a circular array of support frames (11). The support frames (11) are fixedly provided with blades (15) that extend to one side below the barrier net (6). A central shaft (12) that passes through the rotating shaft (10) is fixedly provided at the upper end of the separation cylinder (1). A scraper (13) is fixedly provided at the top of the central shaft (12). The scraper (13) is attached to the top of the barrier net (6).

2. The silicon carbide ceramic membrane separation device according to claim 1, characterized in that, The outer wall of the top cover (2) is provided with a circumferential groove (7), the circumferential groove (7) is provided with an opening above the connecting wall (9), and the top cover (2) is provided with an inwardly inclined guide wall (8) above the opening.

3. The silicon carbide ceramic membrane separation device according to claim 2, characterized in that, A fixing ring (14) is fixedly provided at the edge of the barrier net (6). The two ends of the support frame (11) are fixedly connected to the top of the fixing ring (14) and the top of the rotating shaft (10), respectively. The fixing ring (14) is slidably connected to the upper end of the guide wall (8).

4. The silicon carbide ceramic membrane separation device according to claim 3, characterized in that, The barrier net (6) has fine mesh holes, and the outer wall of the annular groove (7) is a friction wall (16). The upper and lower ends of the friction wall (16) are tightly connected to the annular groove (7) by threads.

Images