Multistage solid-liquid separation device

Abstract

The utility model relates to the technical field of solid-liquid separation in humic acid production, in particular to a multi-stage solid-liquid separation device. The multi-stage solid-liquid separation device comprises a pre-separation tank, the pre-separation tank is connected with a centrifugal separation tank through a guide plate, a centrifugal barrel driven by a rotating motor is arranged in the centrifugal separation tank, a conveying belt is arranged below the centrifugal separation tank, the centrifugal separation tank is connected with a filter through a discharge pump, and a filter plate is arranged in the filter. According to the device, through the arrangement of the pre-separation tank and the inclined filter screen, a solid-liquid mixture is pre-separated, more liquid phases fall into the filtrate temporary storage tank through the inclined filter screen, and solid phases enter the centrifugal barrel, so that the load of the centrifugal machine is greatly reduced, the separation efficiency is improved, the liquid phases in the filtrate temporary storage tank are used for washing the wall of the centrifugal barrel, and the separation efficiency is improved. The working efficiency of the centrifugal machine is improved, and water is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of solid-liquid separation in humic acid production, in particular to a multi-stage solid-liquid separation device. Background Art

[0002] Humic acid is an important organic substance, widely used in agriculture, environmental protection, medicine and other fields. The production process of humic acid usually involves the treatment of solid-liquid mixtures, especially after acidification and reaction, solid-liquid separation is a key step, which has an important impact on the quality and yield of the product.

[0003] Chinese patent application CN218392669U, published on January 31, 2023. A solid-liquid separation and impurity removal system. The solid-liquid separation and impurity removal system includes a storage tank, a rotary separator, and a liquid cyclone. The storage tank is connected to the rotary separator through a rotary separator feed pump, and the rotary separator is connected to the liquid cyclone through a liquid cyclone feed pump. The liquid cyclone is connected to the first filter device through a filter device feed pump, and the first filter device is connected to the liquid storage tank through a pipeline. The rotary separator is used to separate larger solids, the first filter device is used to separate small particle solids, and the liquid cyclone is used to improve the separation efficiency. However, during the use of the device, there are problems such as a high proportion of liquid phase in the mixed material, a large centrifuge load, and high power consumption; and the solid phase after centrifugation has a wall-sticking phenomenon, which requires continuous flushing, which greatly affects the working efficiency of the centrifuge and wastes a lot of water. Utility Model Content

[0004] In view of the above deficiencies in the prior art, the purpose of the utility model is to provide a multi-stage solid-liquid separation device, which pre-separates the solid-liquid mixture through the arrangement of a pre-separation tank and an inclined filter screen, and a larger amount of liquid phase falls into the filtrate temporary storage tank through the inclined filter screen, and the solid phase enters the centrifugal barrel, which greatly reduces the load of the centrifuge and improves the separation efficiency. The liquid phase in the filtrate temporary storage tank is used to wash the centrifugal barrel wall, which improves the working efficiency of the centrifuge and saves water; through the arrangement of the filter entering from the bottom and exiting from the top, the solid phase is isolated under the filter plate, which greatly improves the filtration efficiency.

[0005] The utility model is realized by adopting the following technical solutions:

[0006] The multi-stage solid-liquid separation device comprises a pre-separation tank, which is connected to a centrifugal separation tank through a guide plate, a centrifugal bucket driven by a rotating motor is arranged inside the centrifugal separation tank, a conveyor belt is arranged below the centrifugal separation tank, the centrifugal separation tank is connected to a filter through a discharge pump, and a filter plate is arranged inside the filter.

[0007] The inclined filter is set with one end high and the other end low. The guide plate is connected to the lowest end of the inclined filter, and the feed port is located above the highest end of the inclined filter. There are many water filter ports on the centrifugal barrel for separation of liquid phase during centrifugation. The support column and the rotating support ball play a supporting role for the centrifugal barrel.

[0008] The pre-separation tank is provided with an inclined filter screen inside, a feed inlet is provided on the pre-separation tank, the inclined filter screen is connected with a material guide plate, and a vibrator is provided on the vertical wall of the pre-separation tank.

[0009] A spray plate is arranged inside the centrifugal barrel, the pre-separation tank is connected with the spray plate through a filtrate temporary storage tank, and a flushing pump is arranged between the filtrate temporary storage tank and the spray plate.

[0010] The connection between the guide plate and the centrifugal separation tank is located above the centrifugal barrel, a centrifugal barrel discharge port is provided below the centrifugal barrel, and an arch breaker is provided below the centrifugal barrel. The material on the guide plate falls freely into the centrifugal barrel.

[0011] A support column is arranged on the inner side of the vertical wall of the centrifugal separation tank, and a rotating support ball is arranged on the support column. The rotating support ball is rollingly connected to the centrifugal barrel.

[0012] The centrifugal separation tank is provided with a one-way down-feeding port and a liquid outlet at the bottom, and the liquid outlet is connected to the filter through a discharge pump. After the one-way down-feeding port is opened, the material falls onto the conveyor belt, and the baffle of the one-way down-feeding port plays a role in guiding the material.

[0013] A liquid phase discharge pipe is arranged above the filter plate, and a solid phase discharge port is arranged below the filter plate.

[0014] The connection between the discharge pump and the filter is located below the filter plate. Impurities filtered out by the filter are discharged through the solid phase discharge port.

[0015] The working principle of the utility model is:

[0016] After the activation reaction is completed, the solid-liquid mixture enters the pre-separation tank through the feed port, the vibrator is started, and the material is separated by the inclined filter screen. The liquid phase enters the filtrate temporary storage tank, and the solid phase enters the centrifugal barrel in the centrifugal separation tank through the guide plate; the rotating motor drives the centrifugal barrel to start rotating, and the liquid phase is separated through the filter holes on the centrifugal barrel, and enters the filter through the discharge pump. The solid phase falls to the conveyor belt through the centrifugal barrel discharge port and the one-way discharge port in turn, and enters the next device; then the liquid phase in the filtrate temporary storage tank is sprayed into the centrifugal barrel through the spray plate, and the centrifugal barrel is rinsed, and then enters the filter through the discharge pump, and the filtered liquid phase enters the next device through the liquid phase discharge pipe. Among them, the inclined filter screen is set with one end high and the other end low, the guide plate is connected to the lowest end of the inclined filter screen, and the feed port is located above the highest end of the inclined filter screen. There are many water filter ports on the centrifugal barrel for separation of the liquid phase during centrifugation. The support column and the rotating support ball play a supporting role for the centrifugal barrel.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model adopts the multi-stage solid-liquid separation device, through the arrangement of the pre-separation tank and the inclined filter screen, the solid-liquid mixture is pre-separated, more liquid phase falls into the filtrate temporary storage tank through the inclined filter screen, and the solid phase enters the centrifugal barrel, which greatly reduces the load of the centrifuge and improves the separation efficiency. The liquid phase in the filtrate temporary storage tank is used to wash the centrifugal barrel wall, which improves the working efficiency of the centrifuge and saves water; the solid phase is isolated under the filter plate by the arrangement of the filter entering from the bottom and exiting from the top, which greatly improves the filtration efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the multi-stage solid-liquid separation device of the utility model;

[0020] In the figure: 1. pre-separation tank; 2. centrifugal separation tank; 3. filter; 4. filtrate temporary storage tank; 5. conveyor belt; 6. inclined filter screen; 7. feed inlet; 8. guide plate; 9. centrifugal barrel; 10. spray plate; 11. rotating motor; 12. support column; 13. rotating support ball; 14. centrifugal barrel discharge port; 15. arch breaker; 16. one-way discharge port; 17. flushing pump; 18. liquid outlet; 19. filter plate; 20. solid phase discharge port; 21. liquid phase discharge pipe; 22. discharge pump. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings.

[0022] Example 1

[0023] like Figure 1As shown, the multi-stage solid-liquid separation device includes a pre-separation tank 1, which is connected to the centrifugal separation tank 2 through a guide plate 8. A centrifugal bucket 9 driven by a rotating motor 11 is provided inside the centrifugal separation tank 2. A conveyor belt 5 is provided below the centrifugal separation tank 2. The centrifugal separation tank 2 is connected to the filter 3 through a discharge pump 22, and a filter plate 19 is provided inside the filter 3. The inclined filter screen 6 is set high at one end and low at the other end. The guide plate 8 is connected to the lowest end of the inclined filter screen 6, and the feed port 7 is located above the highest end side of the inclined filter screen 6. The centrifugal bucket 9 is provided with many water filter ports for separating the liquid phase during centrifugation. The support column 12 and the rotating support ball 13 play a supporting role for the centrifugal bucket. An inclined filter screen 6 is provided inside the pre-separation tank 1, and a feed port 7 is provided on the pre-separation tank 1. The inclined filter screen 6 is connected to the guide plate 8, and a vibrator is provided on the vertical wall of the pre-separation tank 1. A spray plate 10 is provided inside the centrifugal barrel 9, and the pre-separation tank 1 is connected to the spray plate 10 through the filtrate temporary storage tank 4. A flushing pump 17 is provided between the filtrate temporary storage tank 4 and the spray plate 10. The connection between the guide plate 8 and the centrifugal separation tank 2 is located above the centrifugal barrel 9, and a centrifugal barrel discharge port 14 is provided below the centrifugal barrel 9, and an arch breaker 15 is provided below the centrifugal barrel 9. A support column 12 is provided on the inner side of the vertical wall of the centrifugal separation tank 2, and a rotating support ball 13 is provided on the support column 12, and the rotating support ball 13 is connected to the centrifugal barrel 9 in a rolling manner. A one-way discharge port 16 and a liquid outlet 18 are provided below the centrifugal separation tank 2, and the liquid outlet 18 is connected to the filter 3 through a discharge pump 22. A liquid phase discharge pipe 21 is provided above the filter plate 19, and a solid phase discharge port 20 is provided below the filter plate 19. The connection between the discharge pump 22 and the filter 3 is located below the filter plate 19.

[0024] The above multi-stage solid-liquid separation device, when in operation, comprises the following steps:

[0025] (1) After the activation reaction is completed, the solid-liquid mixture enters the pre-separation tank 1 through the feed port 7, the vibrator is started, and the material is separated by the inclined filter screen 6. The liquid phase enters the filtrate temporary storage tank 4, and the solid phase enters the centrifugal barrel 9 in the centrifugal separation tank 2 through the guide plate 8; (2) The rotary motor 11 drives the centrifugal barrel 9 to start rotating, and the liquid phase is separated through the filter holes on the centrifugal barrel 9 and enters the filter 3 through the discharge pump 22. The solid phase falls onto the conveyor belt 5 through the centrifugal barrel discharge port 14 and the one-way discharge port 16 in turn and enters the next device; (3) Thereafter, the liquid phase in the filtrate temporary storage tank 4 is sprayed into the centrifugal barrel 9 through the spray plate 10 to rinse the centrifugal barrel 9, and then enters the filter 3 through the discharge pump 22. The filtered liquid phase enters the next device through the liquid phase discharge pipe 21.

Claims

1. A multi-stage solid-liquid separation device, characterized in that: The invention comprises a pre-separation tank (1), wherein the pre-separation tank (1) is connected to a centrifugal separation tank (2) via a material guide plate (8), a centrifugal bucket (9) driven by a rotating motor (11) is arranged inside the centrifugal separation tank (2), a conveyor belt (5) is arranged below the centrifugal separation tank (2), the centrifugal separation tank (2) is connected to a filter (3) via a discharge pump (22), and a filter plate (19) is arranged inside the filter (3).

2. The multi-stage solid-liquid separation device according to claim 1, characterized in that: The pre-separation tank (1) is provided with an inclined filter screen (6) inside, the pre-separation tank (1) is provided with a feed port (7), the inclined filter screen (6) is connected to a material guide plate (8), and a vibrator is provided on the vertical wall of the pre-separation tank (1).

3. The multi-stage solid-liquid separation device according to claim 1, characterized in that: A spray plate (10) is provided inside the centrifugal barrel (9), the pre-separation tank (1) is connected to the spray plate (10) via a filtrate temporary storage tank (4), and a flushing pump (17) is provided between the filtrate temporary storage tank (4) and the spray plate (10).

4. The multi-stage solid-liquid separation device according to claim 1, characterized in that: The connection point between the guide plate (8) and the centrifugal separation tank (2) is located above the centrifugal barrel (9), a centrifugal barrel discharge port (14) is provided below the centrifugal barrel (9), and an arch breaker (15) is provided below the centrifugal barrel (9).

5. The multi-stage solid-liquid separation device according to claim 1, characterized in that: A support column (12) is provided on the inner side of the vertical wall of the centrifugal separation tank (2), and a rotating support ball (13) is provided on the support column (12). The rotating support ball (13) is rollingly connected to the centrifugal bucket (9).

6. The multi-stage solid-liquid separation device according to claim 1, characterized in that: A one-way downward feed port (16) and a liquid outlet (18) are provided at the bottom of the centrifugal separation tank (2), and the liquid outlet (18) is connected to the filter (3) via a discharge pump (22).

7. The multi-stage solid-liquid separation device according to claim 1, characterized in that: A liquid phase discharge pipe (21) is provided above the filter plate (19), and a solid phase discharge port (20) is provided below the filter plate (19).

8. The multi-stage solid-liquid separation device according to claim 6, characterized in that: The connection point between the discharge pump (22) and the filter (3) is located below the filter plate (19).

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