A spiral discharge filter centrifuge for inorganic salt solid-liquid separation

Abstract

This utility model discloses a screw discharge filter centrifuge for inorganic salt solid-liquid separation, comprising a differential, a rotating drum and a screw discharger connected to the differential, a casing installed outside the rotating drum and the screw discharger, a feed pipe connected to the screw discharger, and a motor driving the differential to rotate; a collection tank is installed inside the casing; characterized in that a torque clutch with a set maximum torque to protect the differential is installed at the tail end of the differential; a filter screen and a scraper for scraping the filter cake in the collection tank are installed on the rotating drum; an adjusting shim for adjusting the gap between the screw discharger and the rotating drum is installed axially on the screw discharger. This utility model uses a torque clutch to set a maximum torque for the differential, and slippage occurs when the torque of the differential exceeds the maximum torque, thus protecting the differential; the scraper removes solids from the collection tank, preventing solids from sticking to the collection tank and affecting the normal operation of the centrifuge.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a spiral discharge filter centrifuge for the solid-liquid separation of inorganic salts. Background Technology

[0002] Solid-liquid separation of inorganic salts is typically achieved using a screw discharge centrifuge. However, in existing technologies, when a large amount of solid inorganic salt is present at the screw blades, a high torque is required for transport. Excessive torque can cause differential gear failure, affecting the centrifuge's operation. After the screw blades transport the solid inorganic salt to the collection tank, the salt tends to adhere and accumulate inside, causing vibration and noise during operation and hindering subsequent salt transport. Furthermore, over time, the screw blades wear down, increasing the gap between the worn blades and the drum, thus affecting the normal transport of inorganic salts. Therefore, this paper proposes a screw discharge centrifuge for solid-liquid separation of inorganic salts. Summary of the Invention

[0003] The purpose of this invention is to solve the above problems by proposing a spiral discharge filter centrifuge for the solid-liquid separation of inorganic salts.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a screw discharge filter centrifuge for inorganic salt solid-liquid separation, comprising a differential, a rotating drum and a screw discharger connected to the differential, a casing installed outside the rotating drum and the screw discharger, a feed pipe connected to the screw discharger, and a motor driving the differential to rotate; a collection tank is installed inside the casing; characterized in that a torque clutch capable of setting a maximum torque to protect the differential is installed at the tail end of the differential; a filter screen and a scraper for scraping the filter cake in the collection tank are installed on the rotating drum; and an adjusting shim for adjusting the gap between the screw discharger and the rotating drum is axially installed on the screw discharger.

[0005] Preferably, the differential is also equipped with a drum mounting flange for easy drum installation and a mounting base for fixing the screw unloader; the adjusting shim is installed between the mounting base and the screw unloader.

[0006] Preferably, the spiral unloader includes a spiral scraper, spiral blades disposed on the spiral scraper for spiral unloading of materials, a washing liquid baffle disposed inside the spiral scraper, an acceleration disc connected to the feed pipe, and wear-resistant plates disposed on the spiral blades.

[0007] Preferably, the acceleration disc is equipped with a sealing ring that seals with the feed pipe and a fixing plate that fixes the sealing ring.

[0008] Preferably, the feed pipe is provided with a baffle plate that provides secondary blocking of the suspension.

[0009] Preferably, the differential is also equipped with a bearing and a labyrinth ring; the bearing is equipped with a bearing housing.

[0010] Preferably, the housing is also equipped with a washing pipe and has a solid outlet and a filtrate outlet.

[0011] The beneficial effects of this utility model are: by using a torque clutch to set the maximum torque of the differential, when the torque of the differential exceeds the maximum torque, slippage will occur, thereby protecting the differential. The scraper, rotating with the drum, removes solids from the collection tank, preventing solids from sticking to the tank and causing blockages and vibrations that could affect the normal operation of the centrifuge. By adjusting the gap between the screw conveyor and the filter screen using adjusting shims, the gap between the screw conveyor and the drum is prevented from widening due to wear, thus ensuring stable screw unloading of solids. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a utility model Figure 1 A magnified view of a portion of point A in the middle.

[0014] Figure 3 This is a utility model Figure 1 A magnified view of a section at point B in the middle.

[0015] Figure 4 This is a utility model Figure 1 A magnified view of a section at point C.

[0016] Legend: 1. Differential; 101. Torque clutch; 102. Drum mounting flange; 103. Mounting seat; 104. Bearing; 105. Labyrinth ring; 106. Bearing housing; 2. Drum; 201. Filter screen; 202. Scraper; 3. Screw unloader; 301. Screw scraper; 302. Screw blade; 303. Washing liquid baffle; 304. Accelerator plate; 305. Sealing ring; 306. Fixed pressure plate; 307. Liquid baffle; 308. Wear-resistant plate; 4. Cover; 401. Collection tank; 402. Washing pipe; 403. Solid outlet; 404. Filtrate outlet; 5. Feed pipe; 6. Motor; 7. Adjusting shim. Detailed Implementation

[0017] The following description, in conjunction with the accompanying drawings, further illustrates the spiral discharge filter centrifuge for inorganic salt solid-liquid separation according to this utility model.

[0018] It should be noted that all directional indications in the embodiments of the present invention, such as up, down, left, right, front, back, etc., are only used to explain the relative positional relationship and movement of the components in a specific posture as shown in the attached figure. If the specific posture changes, the directional indication will also change accordingly.

[0019] See appendix Figure 1-4 As shown, this embodiment of a screw discharge filter centrifuge for inorganic salt solid-liquid separation includes a differential 1, a drum 2 and a screw discharger 3 connected to the differential 1, a casing 4 installed outside the drum 2 and the screw discharger 3, a feed pipe 5 connected to the screw discharger 3, and a motor 6 driving the differential 1 to rotate. A collection tank 401 is installed inside the casing 4. The differential 1 is characterized by having a torque clutch 101 installed at its tail end, which can be set to a maximum torque to protect the differential 1. A filter screen 201 and a scraper 202 for scraping the filter cake in the collection tank 401 are installed on the drum 2. An adjusting shim 7 is axially installed on the screw discharger 3 to adjust the gap between the screw discharger 3 and the drum 2. By using the torque clutch 101 to set the maximum torque of the differential 1, slippage will occur when the torque of the differential 1 exceeds the maximum torque, thereby protecting the differential 1. The scraper 202 rotates with the drum 2 to scrape off the solids in the collection tank 401, preventing solids from sticking in the collection tank 401 and causing blockage and vibration, which would affect the normal use of the centrifuge. By adjusting the gap between the screw unloader 3 and the drum 2 using the adjusting shim 7, the gap between the screw unloader 3 and the drum 2 is prevented from widening due to wear, thus ensuring stable screw unloading of solids.

[0020] See appendix Figure 1 As shown, the differential 1 is also equipped with a drum mounting flange 102 for easy installation of the drum 2 and a mounting base 103 for fixing the screw unloader 3; the adjusting shim 7 is installed between the mounting base 103 and the screw unloader 3; by using the adjusting shim 7 between the mounting base 103 and the screw unloader 3 to adjust the gap between the screw unloader 3 and the filter screen 201, stable screw unloading of solids is ensured.

[0021] See appendix Figure 1-4As shown, the spiral unloader 3 includes a spiral scraper 301, spiral blades 302 disposed on the spiral scraper 301 for spiral unloading of materials, a washing liquid baffle 303 disposed inside the spiral scraper 301, an acceleration disc 304 connected to the feed pipe 5, and wear-resistant plates 308 disposed on the spiral blades 302. The acceleration disc 304 is equipped with a sealing ring 305 that seals the feed pipe 5, and a fixing plate 306 that fixes the sealing ring 305. The feed pipe 5 is provided with a baffle plate 307 that provides secondary obstruction of the suspension. By using the sealing ring 305 to seal between the acceleration disc 304 and the feed pipe 5, material spraying between the acceleration disc 304 and the feed pipe 5 is prevented, which would affect the separation effect of solids. Simultaneously, the baffle plate 307 further obstructs the material, improving the solid separation effect. The wear-resistant plates 308 improve the wear resistance of the spiral blades 302, extending their service life.

[0022] See appendix Figure 1 As shown, the differential 1 is also equipped with a bearing 104 and a labyrinth ring 105; the bearing 104 is equipped with a bearing housing 106; the housing 4 is also equipped with a washing pipe 402 and has a solid outlet 403 and a filtrate outlet 404.

[0023] In the process of using this utility model, the motor 6 drives the differential 1 to rotate via belt drive. The differential 1 drives the screw unloader 3 and the drum 2 to rotate. The liquid inorganic salt is transported to the acceleration plate 304 through the feeding pipe. The rotation of the acceleration plate 304 separates the liquid inorganic salt into solid and liquid. The separated filtrate is discharged directly through the filtrate outlet 404. The separated solid inorganic salt is conveyed by the screw blades 302. The screw blades 302 transport the inorganic salt to the collection tank 401, and then from the collection tank 401 it is transported to the solid outlet 403 for unified discharge. At the same time, the scraper 202 rotates with the drum 2 to scrape off the inorganic salt in the collection tank 401 to prevent the inorganic salt from sticking to the collection tank 401.

[0024] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts, comprising a differential (1), a rotating drum (2) and a screw discharger (3) connected to the differential (1), a casing (4) installed outside the rotating drum (2) and the screw discharger (3), a feed pipe (5) connected to the screw discharger (3), and a motor (6) for driving the differential (1) to rotate; a collection tank (401) is installed inside the casing (4); characterized in that... The differential (1) is equipped with a torque clutch (101) that can be set to protect the differential (1) with maximum torque; the drum (2) is equipped with a filter screen (201) and a scraper (202) for scraping the filter cake in the collection trough (401); the screw feeder (3) is axially equipped with an adjusting shim (7) for adjusting the gap between the screw feeder (3) and the drum (2).

2. The screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 1, characterized in that: The differential (1) is also equipped with a drum mounting flange (102) for easy installation of the drum (2) and a mounting seat (103) for fixing the screw unloader (3); the adjusting shim (7) is installed between the mounting seat (103) and the screw unloader (3).

3. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 2, characterized in that: The spiral unloader (3) includes a spiral scraper (301), spiral blades (302) disposed on the spiral scraper (301) for spiral unloading of materials, a washing liquid baffle (303) disposed in the spiral scraper (301), an acceleration disc (304) connected to the feed pipe (5), and a wear-resistant plate (308) disposed on the spiral blades (302).

4. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 3, characterized in that: The acceleration disc (304) is equipped with a sealing ring (305) that seals the feed pipe (5) and a fixing plate (306) that fixes the sealing ring (305).

5. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 4, characterized in that: The feed pipe (5) is provided with a baffle plate (307) to block the suspension in a secondary manner.

6. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 2, characterized in that: The differential (1) is also equipped with a bearing (104) and a labyrinth ring (105); the bearing (104) is equipped with a bearing housing (106).

7. A screw discharge filter centrifuge for solid-liquid separation of inorganic salts according to claim 1, characterized in that: The housing (4) is also equipped with a washing pipe (402) and has a solid outlet (403) and a filtrate outlet (404).

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