Nanometer energetic material continuous solid-liquid separation device and separation method

Abstract

The invention relates to a nano energetic material continuous solid-liquid separation device and a separation method, and belongs to the field of nano energetic material cleaning and automatic collection. Comprising a storage tank, a suspension concentration device, a suspension separation device, a deionized water machine and a cooling system, wherein the suspension concentration device is arranged at the central position; the storage tank is horizontally mounted on one side of the suspension concentration device; the suspension separation device is horizontally mounted on the other side of the suspension concentration device; the cooling system is arranged behind the suspension concentration device; the deionized water machine is respectively communicated with the suspension concentration device and the suspension separation device; the method solves the problem of low liquid-solid separation efficiency of a large amount of nano energetic materials under the condition of small solid-liquid ratio, and ensures that the particle size of the nano particles is not obviously increased in the separation process.

Description

Technical Field

[0001] This invention belongs to the field of cleaning and automated collection of nano-energetic materials, and relates to a continuous solid-liquid separation device and separation method for nano-energetic materials. Background Technology

[0002] There are various ways to prepare nanoscale energetic materials, mainly through mechanical ball milling and jet refining. The main problem encountered when separating and collecting nanoscale energetic materials obtained by mechanical ball milling and jet refining is that a large amount of suspension containing nanoscale energetic materials needs to be processed, and the materials need to be separated and collected quickly and efficiently while keeping the size of the nanoparticles from increasing significantly.

[0003] The separation and collection of nanoscale energetic materials in suspensions has been studied by relevant research institutions and some pyrotechnic product manufacturers both domestically and internationally. However, most studies are still in the laboratory preparation and small-batch production stages, primarily relying on filtration and washing for separation and collection. A patent authorized by Gansu Yinguang Chemical Industry Group Co., Ltd. (CN114146477A) discloses a horizontal disc filter device for explosives, which uses a central rotating disc in conjunction with vacuum for filtration and separation of explosives, suitable for separating slurries with a large solid-liquid ratio. Some laboratories also use small vacuum filters in conjunction with membranes of specific pore sizes for vacuum filtration separation, or use high-speed centrifuges for centrifugal separation. These methods mainly have the following problems: (1) The nano-energetic materials prepared by jet refining have a small solid-liquid ratio and small particle size. Vacuum filtration takes a long time, the filter membrane is easily clogged, and the nanoparticle size is easy to grow.

[0004] (2) Nano energetic materials have a small specific gravity, require high speed of high-speed centrifuges, have a small single separation volume, are difficult to produce and apply on a large scale, and require secondary dispersion after the separated particles are accumulated.

[0005] (3) Using methods such as membrane filtration results in high loss of nano-energetic materials, making it difficult to improve the yield.

[0006] (4) It is difficult to carry out large-scale solid-liquid separation of energetic nanomaterials smaller than 300 nm. Summary of the Invention

[0007] The technical problem solved by this invention is to overcome the shortcomings of the prior art and propose a continuous solid-liquid separation device and separation method for nano-energetic materials. This solves the problem of low liquid-solid separation efficiency of a large number of nano-energetic materials under the condition of small solid-liquid ratio, while ensuring that the particle size of nanoparticles does not increase significantly during the separation process.

[0008] The solution of the present invention is: A continuous solid-liquid separation device for nano-energetic materials includes a storage tank, a suspension concentration device, a suspension separation device, a deionized water machine, and a cooling system; The suspension concentration device is located in the center; the storage tank is horizontally installed on one side of the suspension concentration device; the suspension separation device is horizontally installed on the other side of the suspension concentration device; the cooling system is arranged behind the suspension concentration device; and the deionized water machine is connected to both the suspension concentration device and the suspension separation device.

[0009] In the aforementioned continuous solid-liquid separation device for nano-energetic materials, the suspension concentration device includes a concentration tank, a concentration tank solenoid valve, a feed solenoid valve, a centrifugal pump, a drain solenoid valve, a ceramic membrane assembly, a backflushing centrifugal pump, a backflushing solenoid valve, a discharge three-way solenoid valve, a hydraulic gauge, and a liquid level sensor. The storage tank is connected to the feed solenoid valve of the suspension concentration unit via a pipeline; the feed solenoid valve and the centrifugal pump are located below the concentration tank; the concentration tank solenoid valve is located above the center of the feed solenoid valve and the centrifugal pump, and is connected to the centrifugal pump via a pipeline; a ceramic membrane tube assembly is installed on the right side of the concentration tank; the ceramic membrane tube assembly is connected to the upper part of the concentration tank via a pipeline; a discharge three-way solenoid valve is installed on the pipeline; a drain solenoid valve is installed in the lower area of ​​the ceramic membrane tube assembly; a backflushing solenoid valve is installed in the upper area of ​​the ceramic membrane tube assembly; a backflushing centrifugal pump is installed to the right of the backflushing solenoid valve and is connected to the backflushing solenoid valve and the deionized water machine via a pipeline; a hydraulic gauge is installed to the left of the discharge three-way solenoid valve; and a level sensor is installed on the left side of the concentration tank against the wall.

[0010] In the above-mentioned continuous solid-liquid separation device for nano-energetic materials, the suspension separation device includes a circulation tank, a feed three-way solenoid valve, a feed centrifugal pump, a separation tank, a discharge solenoid valve, a drain centrifugal pump, a drain three-way solenoid valve, a backflushing centrifugal pump, a drain solenoid valve, a backflushing solenoid valve, a tubular membrane, and a circulation solenoid valve. The system comprises the following components: a separation tank at the center; a circulation tank to the left of the separation tank; a feed three-way solenoid valve below the circulation tank; a feed three-way solenoid valve connected to both the deionized water system and the circulation tank, and connected to the feed centrifugal pump via a pipe; a feed centrifugal pump located between the concentration tank and the separation tank, connected to the upper part of the separation tank via a pipe; a tubular membrane located in the separation tank; a circulation solenoid valve connected to the upper left of the tubular membrane via a pipe; a circulation solenoid valve located in the upper middle part between the separation tank and the circulation tank, connected to the circulation tank via a pipe; a backflushing solenoid valve connected to the upper right of the tubular membrane via a pipe; a backflushing solenoid valve connected to the backflushing centrifugal pump via a pipe; a backflushing centrifugal pump located to the right of the drain centrifugal pump; a drain centrifugal pump located to the right of the drain solenoid valve, connected to the drain solenoid valve via a pipe; a drain solenoid valve located to the right of the separation tank, connected to the lower part of the separation tank via a pipe; a discharge solenoid valve installed at the lower part of the separation tank; a drain centrifugal pump connected to the circulation tank via a pipe; and a drain three-way solenoid valve installed on the pipe, connected to both the circulation tank and the drain pipe.

[0011] In the aforementioned continuous solid-liquid separation device for nano-energetic materials, the cooling system includes a storage device cooling jacket, a concentration device cooling jacket, a separation device cooling jacket, and a refrigerator. The chiller is connected to the cooling jackets of the storage unit, the concentration unit, and the separation unit via pipes. The chiller is located at the rear of the suspension concentration unit. The cooling jacket of the storage unit is located outside the storage tank and covers the storage tank. The cooling jacket of the concentration unit is located outside the concentration tank and covers the concentration tank. The cooling jacket of the separation unit is located outside the separation tank and covers the circulation tank. The deionized water machine is located to the right of the chiller and is connected to the backwash centrifugal pump in the suspension concentration unit and the feed three-way solenoid valve in the suspension separation unit via pipes.

[0012] The separation method of the above-mentioned continuous solid-liquid separation device for nanomaterials includes: S1. Suspension loading; S2, Suspension concentration; S3, enrichment of energetic materials; S4. Cleaning of energetic materials; S5. Collection of energetic materials.

[0013] In the above separation method, the specific operation steps in step S1 are as follows: Turn on the refrigeration unit and set the temperature to 0~5℃; turn on the deionized water machine; the feed solenoid valve in the suspension concentration device opens, and the nano-energetic material suspension in the storage tank flows into the centrifugal pump under the influence of gravity; at this time, the concentration tank solenoid valve closes, and the discharge three-way solenoid valve closes; start the centrifugal pump; open the drain solenoid valve, and pump the nano-energetic material suspension in the storage tank through the ceramic membrane tube assembly into the concentration tank; the liquid level sensor detects the liquid level in the concentration tank, and when the upper limit of the specified liquid level in the concentration tank is reached, close the feed solenoid valve.

[0014] In the above separation method, the specific operation steps in step S2 are as follows: Open the solenoid valve of the concentration tank. The suspension in the concentration tank is drawn out by the centrifugal pump and returned to the concentration tank through the ceramic membrane tube. The separated water is discharged through the drain solenoid valve. The speed of the centrifugal pump is controlled according to the pressure of the hydraulic gauge, thereby controlling the pressure difference inside and outside the ceramic membrane tube assembly. When the liquid level in the concentration tank drops to the specified lower limit, close the solenoid valve of the concentration tank and open the feed solenoid valve. The centrifugal pump continues to pump the suspension in the storage tank into the suspension concentration device for concentration. After the suspension reaches a concentration of 10 to 20 times after circulation concentration, the discharge three-way solenoid valve is opened, the feed solenoid valve is closed, and the concentration tank solenoid valve is opened. The concentrated suspension in the concentration tank is pumped into the circulation tank of the suspension separation device through the centrifugal pump and pipeline. After the concentration tank is emptied, close the discharge three-way solenoid valve and open the backflushing solenoid valve to flush the ceramic membrane tube assembly to ensure that there is no residue of nano-energetic materials. The flushing liquid is mixed with the subsequent suspension and concentration continues.

[0015] In the above separation method, the specific operation steps in step S3 are as follows: After the circulating tank contains enough concentrated suspension, the feed three-way solenoid valve is opened to control the flow direction of the concentrated suspension to the feed centrifugal pump. The feed centrifugal pump pumps the concentrated suspension into the separation tank through the pipeline. At this time, the backflushing solenoid valve is closed, the drain solenoid valve is closed, and the circulating solenoid valve is opened. The concentrated suspension returns to the circulating tank through the tubular membrane and the circulating solenoid valve, and the nano-energetic materials in the concentrated suspension are enriched on the surface of the tubular membrane.

[0016] In the above separation method, the specific operation steps in step S4 are as follows: After the energetic material has been enriched for 10-30 minutes, the feed centrifugal pump is turned off, the feed solenoid valve is turned off, the circulation solenoid valve is turned off, and the drain solenoid valve is turned on. The drain three-way solenoid valve is turned on to control the flow direction to the circulation tank, and the drain centrifugal pump is started. The suspension in the separation tank is drained to the circulation tank. The drain three-way solenoid valve is turned off, the feed three-way solenoid valve is turned on, and the flow direction is controlled to deionized water to the feed centrifugal pump. The deionized water is pumped into the separation tank to clean the nano-energetic material on the surface of the tubular membrane.

[0017] In the above separation method, the specific operation steps in step S5 are as follows: After cleaning, close the feed three-way solenoid valve and the feed centrifugal pump, and open the drain solenoid valve and the drain three-way solenoid valve to control the flow direction to drain; turn on the drain centrifugal pump to drain the clean water in the separation tank, and then close the drain solenoid valve, the drain three-way solenoid valve, the drain centrifugal pump, and the circulation solenoid valve respectively; open the backflushing solenoid valve and the backflushing centrifugal pump; backflushing the nano-energetic material enriched and cleaned on the surface of the tubular membrane into the bottom of the separation tank; after repeating the above actions several times, the nano-energetic material in the suspension in the circulation tank will eventually remain at the bottom of the separation tank; open the discharge solenoid valve, collect and filter the outflowing nano-energetic material and clean water mixture to obtain the nano-energetic material.

[0018] The advantages of this invention compared to the prior art are: (1) The present invention uses a combination of sensor and solenoid valve to realize automated liquid delivery and processing; (2) The present invention adopts a two-step combination of concentration and separation, which can handle the separation of a large number of suspensions with a small solid-liquid ratio, improves the separation and collection efficiency, and the liquid can be concentrated to 1 / 10 of the volume. After separation, the mixture of nano energetic materials and deionized water is only concentrated to 1 / 5 of the volume and is not a suspension, which can achieve rapid filtration. (3) The present invention completes the cleaning of the nano-energetic materials during the production process, eliminating the need for secondary washing; (4) The present invention integrates backflushing function, which can realize the regeneration application of ceramic membrane tubes and tubular membranes in the concentration and separation process without frequent replacement; (5) The present invention is equipped with cooling jackets for key links. Combined with efficient liquid separation processing, it can process a large amount of solution in a short time. At the same time, low temperature insulation can ensure that the particle size of nanoparticles does not increase significantly in a short time. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall solid-liquid separation device for nano-energetic materials of the present invention; Figure 2 This is a schematic diagram of the suspension concentration device of the present invention; Figure 3 This is a schematic diagram of the suspension separation device of the present invention; Figure 4 This is a schematic diagram of the separation process of the present invention. Detailed Implementation

[0020] The present invention will be further described below with reference to the embodiments.

[0021] This invention provides a continuous solid-liquid separation device for energetic nanomaterials, which solves the problem of low liquid-solid separation efficiency of large quantities of energetic nanomaterials under conditions of small solid-liquid ratio, while ensuring that the particle size of nanoparticles does not increase significantly during the separation process.

[0022] Continuous solid-liquid separation device for energetic nanomaterials, such as Figure 1 As shown, the system specifically includes a storage tank 1, a suspension concentration device 2, a suspension separation device 3, a deionized water machine 4, and a cooling system 5. The suspension concentration device 2 is located at the center; the storage tank 1 is horizontally installed on one side of the suspension concentration device 2; the suspension separation device 3 is horizontally installed on the other side of the suspension concentration device 2; the cooling system 5 is located behind the suspension concentration device 2; and the deionized water machine 4 is connected to both the suspension concentration device 2 and the suspension separation device 3.

[0023] like Figure 2 As shown, the suspension concentration device 2 includes a concentration tank 21, a concentration tank solenoid valve 22, a feed solenoid valve 23, a centrifugal pump 24, a drain solenoid valve 25, a ceramic membrane tube assembly 26, a backflushing centrifugal pump 27, a backflushing solenoid valve 28, a discharge three-way solenoid valve 29, a hydraulic gauge 210, and a liquid level sensor 211. The storage tank 1 is connected to the feed solenoid valve 23 of the suspension concentration device 2 via a pipeline; the feed solenoid valve 23 and the centrifugal pump 24 are located below the concentration tank 21; the concentration tank solenoid valve 22 is located above the center of the feed solenoid valve 23 and the centrifugal pump 24, and is connected to the centrifugal pump 24 via a pipeline; a ceramic membrane tube assembly 26 is installed on the right side of the concentration tank 21; the ceramic membrane tube assembly 26 is connected to the upper part of the concentration tank 21 via a pipeline; a discharge three-way solenoid valve 29 is installed on the pipeline; a drain solenoid valve 25 is installed in the lower area of ​​the ceramic membrane tube assembly 26; a backflushing solenoid valve 28 is installed in the upper area of ​​the ceramic membrane tube assembly 26; a backflushing centrifugal pump 27 is installed to the right of the backflushing solenoid valve 28, and is connected to the backflushing solenoid valve 28 and the deionized water machine 4 via a pipeline; a hydraulic gauge 210 is installed to the left of the discharge three-way solenoid valve 29; and a liquid level sensor 211 is installed on the left side of the concentration tank 21 against the wall.

[0024] like Figure 3As shown, the suspension separation device 3 includes a circulation tank 31, a feed three-way solenoid valve 32, a feed centrifugal pump 33, a separation tank 34, a discharge solenoid valve 35, a drainage centrifugal pump 36, a drainage three-way solenoid valve 37, a backflushing centrifugal pump 38, a drainage solenoid valve 39, a backflushing solenoid valve 310, a tubular membrane 311, and a circulation solenoid valve 312. The separation tank 34 is located in the center; the circulation tank 31 is located to the left of the separation tank 34; the feed three-way solenoid valve 32 is installed below the circulation tank 31; the feed three-way solenoid valve 32 is connected to the deionized water machine 4 and the circulation tank 31 respectively, and is connected to the feed centrifugal pump 33 through a pipeline; the feed centrifugal pump 33 is located between the concentration tank 31 and the separation tank 34, and is connected to the upper part of the separation tank 34 through a pipeline; the tubular membrane 311 is located in the separation tank 34; the upper left side of the tubular membrane 311 is connected to the circulation solenoid valve 312 through a pipeline; the circulation solenoid valve 312 is located in the upper middle part between the separation tank 34 and the circulation tank 31; the circulation solenoid valve 312 is connected to the circulation tank 31 through a pipeline. Tank 31 is connected; the upper right side of tubular membrane 311 is connected to backwash solenoid valve 310 via a pipe; backwash solenoid valve 310 is connected to backwash centrifugal pump 38 via a pipe; backwash centrifugal pump 38 is located to the right of drainage centrifugal pump 36; drainage centrifugal pump 36 is located to the right of drainage solenoid valve 39, and drainage centrifugal pump 36 and drainage solenoid valve 39 are connected via a pipe; drainage solenoid valve 39 is located to the right of separation tank 34; drainage solenoid valve 39 is connected to the lower part of separation tank 34 via a pipe; discharge solenoid valve 35 is installed at the lower part of separation tank 34; drainage centrifugal pump 36 is connected to circulation tank 31 via a pipe; drainage three-way solenoid valve 37 is installed on the pipe, connecting circulation tank 31 and drainage pipe respectively.

[0025] The cooling system 5 includes a storage device cooling jacket 51, a concentration device cooling jacket 52, a separation device cooling jacket 53, and a chiller 54. The chiller 54 is connected to the storage device cooling jacket 51, the concentration device cooling jacket 52, and the separation device cooling jacket 53 via pipes. The chiller 54 is located at the rear of the suspension concentration device 2. The storage device cooling jacket 51 is located outside and covers the storage tank 1. The concentration device cooling jacket 52 is located outside and covers the concentration tank 21. The separation device cooling jacket 53 is located outside and covers the separation tank 34 and the circulation tank 31. The deionized water machine 4 is located to the right of the chiller 54 and is connected via pipes to the backwash centrifugal pump 27 in the suspension concentration device 2 and the feed three-way solenoid valve 32 in the suspension separation device 3.

[0026] like Figure 4 As shown, the separation method of the continuous solid-liquid separation device for nano-energetic materials specifically includes the following steps: S1. Suspension feeding.

[0027] The specific operating steps are as follows: Turn on the refrigeration unit 54 and set the temperature to 0~5℃; turn on the deionized water machine 4; open the feed solenoid valve 23 in the suspension concentration device 2, and the nano energetic material suspension in the storage tank 1 flows into the centrifugal pump 24 under the influence of gravity; at this time, the concentration tank solenoid valve 22 is closed, and the discharge three-way solenoid valve 29 is closed; start the centrifugal pump 24; open the drain solenoid valve 25, and pump the nano energetic material suspension in the storage tank 1 through the ceramic membrane tube assembly 26 into the concentration tank 21; the liquid level sensor 211 detects the liquid level in the concentration tank 21, and closes the feed solenoid valve 23 when the upper limit of the liquid level of the concentration tank 21 is reached.

[0028] S2, Suspension Concentration.

[0029] The specific operating steps are as follows: Open the solenoid valve 22 of the concentration tank. The suspension in the concentration tank 21 is drawn out by the centrifugal pump 24 and returned to the concentration tank 21 through the ceramic membrane tube 26. The separated water is discharged through the drain solenoid valve 25. The speed of the centrifugal pump 24 is controlled according to the pressure of the hydraulic gauge 210, thereby controlling the pressure difference inside and outside the ceramic membrane tube assembly 26. When the liquid level in the concentration tank 21 drops to the specified lower limit, close the solenoid valve 22 of the concentration tank and open the feed solenoid valve 23. The centrifugal pump 24 continues to pump the suspension in the storage tank 1 into the suspension concentration device 2 for concentration. After the suspension reaches a concentration of 10 to 20 times after circulation and concentration, the discharge three-way solenoid valve 29 is opened, the feed solenoid valve 23 is closed, and the concentration tank solenoid valve 22 is opened. The concentrated suspension in the concentration tank 21 is pumped into the circulation tank 31 in the suspension separation device 3 through the centrifugal pump 24 and pipeline. After the concentration tank 31 is emptied, the discharge three-way solenoid valve 29 is closed, the backflushing solenoid valve 310 is opened, and the ceramic membrane tube assembly 26 is flushed to ensure that there is no residue of nano-energetic materials. The flushing liquid is mixed with the subsequent suspension and concentration continues.

[0030] S3, enrichment of energetic materials.

[0031] The specific operating steps are as follows: After the circulating tank 31 contains enough concentrated suspension, the feed three-way solenoid valve 32 is opened to control the flow direction of the concentrated suspension to the feed centrifugal pump 33. The feed centrifugal pump 33 pumps the concentrated suspension into the separation tank 34 through the pipeline. At this time, the backflushing solenoid valve 310 is closed, the drain solenoid valve 39 is closed, and the circulation solenoid valve 312 is opened. The concentrated suspension returns to the circulating tank 31 through the tubular membrane 311 and the circulation solenoid valve 312, and the nano energetic materials in the concentrated suspension are enriched on the surface of the tubular membrane 311.

[0032] S4. Cleaning of energetic materials.

[0033] The specific operating steps are as follows: After the energetic material has been enriched for 10-30 minutes, the feed centrifugal pump 33 is turned off, the feed solenoid valve 32 is turned off, the circulation solenoid valve 312 is turned off, and the drain solenoid valve 39 is turned on. The drain three-way solenoid valve 37 is turned on to control the flow direction to the circulation tank 31, and the drain centrifugal pump 36 is started. The suspension in the separation tank 34 is drained to the circulation tank 31. The drain three-way solenoid valve 37 is turned off, and the feed three-way solenoid valve 32 is turned on to control the flow direction to deionized water to the feed centrifugal pump 33. The deionized water is pumped into the separation tank 34 to clean the nano-energetic material on the surface of the tubular membrane 311.

[0034] S5. Collection of energetic materials.

[0035] The specific operating steps are as follows: After cleaning, close the feed three-way solenoid valve 32 and the feed centrifugal pump 33, and open the drain solenoid valve 39 and the drain three-way solenoid valve 37 to control the flow direction to drain; open the drain centrifugal pump 36 to drain the clean water in the separation tank 34, and then close the drain solenoid valve 39, the drain three-way solenoid valve 37, the drain centrifugal pump 36, and the circulation solenoid valve 312 respectively; open the backflushing solenoid valve 310 and the backflushing centrifugal pump 38; backflushing the nano-energetic material enriched and cleaned on the surface of the tubular membrane 311 into the bottom of the separation tank 34; after repeating the above actions several times, the nano-energetic material in the suspension in the circulation tank 31 will eventually remain at the bottom of the separation tank 34; open the discharge solenoid valve 35, collect and filter the outflowing nano-energetic material and clean water mixture to obtain the nano-energetic material.

[0036] This invention combines sensors and solenoid valves to achieve automated liquid transport and processing. It employs a two-step process of concentration and separation, enabling the separation of large quantities of suspensions with low solid-liquid ratios, thus improving separation and collection efficiency. The liquid can be concentrated to 1 / 10 of its volume, and the separated mixture of energetic nanomaterials and deionized water is concentrated to only 1 / 5 of its original volume and is no longer a suspension, allowing for rapid filtration.

[0037] This invention completes the cleaning of nano-energetic materials during the production process, eliminating the need for secondary washing; it also integrates a backflushing function, enabling the regeneration of ceramic membrane tubes and tubular membranes during concentration and separation processes, without the need for frequent replacement.

[0038] This invention incorporates cooling jackets for key processes, combined with efficient liquid separation, enabling the processing of large quantities of solution in a short time. At the same time, low-temperature insulation ensures that the particle size of nanoparticles does not increase significantly in a short period of time.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A continuous solid-liquid separation device for nano-energetic materials, characterized in that: It includes a storage tank (1), a suspension concentration device (2), a suspension separation device (3), a deionized water machine (4), and a cooling system (5); The suspension concentration device (2) is located in the center; the storage tank (1) is horizontally installed on one side of the suspension concentration device (2); the suspension separation device (3) is horizontally installed on the other side of the suspension concentration device (2); the cooling system (5) is arranged behind the suspension concentration device (2); and the deionized water machine (4) is connected to the suspension concentration device (2) and the suspension separation device (3) respectively.

2. The continuous solid-liquid separation device for nano-energetic materials according to claim 1, characterized in that: The suspension concentration device (2) includes a concentration tank (21), a concentration tank solenoid valve (22), a feed solenoid valve (23), a centrifugal pump (24), a drain solenoid valve (25), a ceramic membrane tube assembly (26), a backflushing centrifugal pump (27), a backflushing solenoid valve (28), a discharge three-way solenoid valve (29), a hydraulic gauge (210), and a liquid level sensor (211). The storage tank (1) is connected to the feed solenoid valve (23) of the suspension concentration device (2) via a pipe; the feed solenoid valve (23) and the centrifugal pump (24) are located below the concentration tank (21); the concentration tank solenoid valve (22) is located above the center of the feed solenoid valve (23) and the centrifugal pump (24), and is connected to the centrifugal pump (24) via a pipe; a ceramic membrane tube assembly (26) is installed on the right side of the concentration tank (21); the ceramic membrane tube assembly (26) is connected to the upper part of the concentration tank (21) via a pipe; the pipe is on Install the discharge three-way solenoid valve (29); install the drain solenoid valve (25) in the lower area of ​​the ceramic membrane tube assembly (26); install the backflushing solenoid valve (28) in the upper area of ​​the ceramic membrane tube assembly (26); install the backflushing centrifugal pump (27) to the right of the backflushing solenoid valve (28); connect it to the backflushing solenoid valve (28) and the deionized water machine (4) through a pipeline; install the hydraulic gauge (210) to the left of the discharge three-way solenoid valve (29); install the level sensor (211) on the left side of the concentration tank (21) against the wall.

3. The continuous solid-liquid separation device for nano-energetic materials according to claim 2, characterized in that: The suspension separation device (3) includes a circulation tank (31), a feed three-way solenoid valve (32), a feed centrifugal pump (33), a separation tank (34), a discharge solenoid valve (35), a drain centrifugal pump (36), a drain three-way solenoid valve (37), a backflushing centrifugal pump (38), a drain solenoid valve (39), a backflushing solenoid valve (310), a tubular membrane (311), and a circulation solenoid valve (312). Among them, the separation tank (34) is located in the center; the circulation tank (31) is located to the left of the separation tank (34); the feed three-way solenoid valve (32) is installed below the circulation tank (31); the feed three-way solenoid valve (32) is connected to the deionized water machine (4) and the circulation tank (31) respectively, and is connected to the feed centrifugal pump (33) through a pipeline; the feed centrifugal pump (33) is located in the middle of the concentration tank (31) and the separation tank (34), and is connected to the upper part of the separation tank (34) through a pipeline; the tubular membrane (311) is located in the separation tank (34); the upper left side of the tubular membrane (311) is connected to the circulation solenoid valve (312) through a pipeline; the circulation solenoid valve (312) is located in the upper middle part of the separation tank (34) and the circulation tank (31); the circulation solenoid valve (312) is connected to the circulation tank (31) through a pipeline. The ring tank (31) is connected; the upper right side of the tubular membrane (311) is connected to the backwash solenoid valve (310) through a pipe; the backwash solenoid valve (310) is connected to the backwash centrifugal pump (38) through a pipe; the backwash centrifugal pump (38) is located to the right of the drain centrifugal pump (36); the drain centrifugal pump (36) is located to the right of the drain solenoid valve (39), and the drain centrifugal pump (36) and the drain solenoid valve (39) are connected through a pipe; the drain solenoid valve (39) is located to the right of the separator (34); the drain solenoid valve (39) is connected to the lower part of the separator (34) through a pipe; the discharge solenoid valve (35) is installed at the lower part of the separator (34); the drain centrifugal pump (36) is connected to the circulation tank (31) through a pipe; a drain three-way solenoid valve (37) is installed on the pipe, which is connected to the circulation tank (31) and the drain pipe respectively.

4. The continuous solid-liquid separation device for nano-energetic materials according to claim 3, characterized in that: The cooling system (5) includes a storage device cooling jacket (51), a concentration device cooling jacket (52), a separation device cooling jacket (53), and a refrigerator (54). The chiller (54) is connected to the cooling jacket (51) of the storage device, the cooling jacket (52) of the concentration device, and the cooling jacket (53) of the separation device via pipes. The chiller (54) is located at the rear of the suspension concentration device (2). The cooling jacket (51) of the storage device is located outside the storage tank (1) and covers the storage tank (1). The cooling jacket (52) of the concentration device is located outside the concentration tank (21) and covers the concentration tank (21). The cooling jacket (53) of the separation device is located outside the separation tank (34) and the circulation tank (31) and covers the separation tank (34) and the circulation tank (31). The deionized water machine (4) is located to the right of the chiller (54) and is connected to the backwash centrifugal pump (27) in the suspension concentration device (2) and the feed three-way solenoid valve (32) in the suspension separation device (3) via pipes.

5. The separation method of the continuous solid-liquid separation device for nano-energetic materials according to claim 4, characterized in that: include: S1. Suspension loading; S2, Suspension concentration; S3, enrichment of energetic materials; S4. Cleaning of energetic materials; S5. Collection of energetic materials.

6. The separation method according to claim 5, characterized in that: In S1, the specific operation steps are as follows: Turn on the refrigeration unit (54) and set the temperature to 0~5℃; turn on the deionized water machine (4); open the feed solenoid valve (23) in the suspension concentration device (2), and the nano energetic material suspension in the storage tank (1) flows into the centrifugal pump (24) under the influence of gravity; at this time, the concentration tank solenoid valve (22) is closed and the discharge three-way solenoid valve (29) is closed; start the centrifugal pump (24); open the drain solenoid valve (25), and pump the nano energetic material suspension in the storage tank (1) into the concentration tank (21) after flowing through the ceramic membrane tube assembly (26); the liquid level sensor (211) detects the liquid level in the concentration tank (21), and closes the feed solenoid valve (23) when the upper limit of the liquid level specified in the concentration tank (21) is reached.

7. The separation method according to claim 5, characterized in that: In step S2, the specific operation steps are as follows: Open the solenoid valve (22) of the concentration tank. The suspension in the concentration tank (21) is drawn out by the centrifugal pump (24) and returns to the concentration tank (21) through the ceramic membrane tube (26). The separated water is discharged through the drain solenoid valve (25). The speed of the centrifugal pump (24) is controlled according to the pressure of the hydraulic gauge (210), thereby controlling the pressure difference between the inside and outside of the ceramic membrane tube assembly (26). When the liquid level in the concentration tank (21) drops to the specified lower limit, close the solenoid valve (22) of the concentration tank and open the feed solenoid valve (23). The centrifugal pump (24) continues to pump the suspension in the storage tank (1) into the suspension concentration device (2) for further processing. Concentration is carried out; after the suspension is concentrated to a concentration of 10 to 20 times, the discharge three-way solenoid valve (29) is opened, the feed solenoid valve (23) is closed, and the concentration tank solenoid valve (22) is opened; the concentrated suspension in the concentration tank (21) is pumped into the circulation tank (31) in the suspension separation device (3) through the pipeline by the centrifugal pump (24); after the concentration tank (31) is emptied, the discharge three-way solenoid valve (29) is closed, the backflushing solenoid valve (310) is opened, and the ceramic membrane tube assembly (26) is flushed to ensure that there is no residue of nano energetic materials; the flushing liquid is mixed with the subsequent suspension and concentration continues.

8. The separation method according to claim 5, characterized in that: In step S3, the specific operation steps are as follows: After the circulating tank (31) has stored enough concentrated suspension, the feed three-way solenoid valve (32) is opened to control the flow direction of the concentrated suspension to the feed centrifugal pump (33); the feed centrifugal pump (33) pumps the concentrated suspension into the separation tank (34) through the pipeline; at this time, the backflushing solenoid valve (310) is closed, the drain solenoid valve (39) is closed, and the circulation solenoid valve (312) is opened; the concentrated suspension returns to the circulating tank (31) through the tubular membrane (311) and the circulation solenoid valve (312), and the nano energetic materials in the concentrated suspension are enriched on the surface of the tubular membrane (311).

9. The separation method according to claim 5, characterized in that: In step S4, the specific operation steps are as follows: After the energetic material is enriched for 10-30 minutes, the feed centrifugal pump (33) is closed, the feed solenoid valve (32) is closed, the circulation solenoid valve (312) is closed, and the drain solenoid valve (39) is opened; the drain three-way solenoid valve (37) is opened to control the flow direction to the circulation tank (31), and the drain centrifugal pump (36) is started; the suspension in the separation tank (34) is drained to the circulation tank (31); the drain three-way solenoid valve (37) is closed, the feed three-way solenoid valve (32) is opened, and the flow direction is controlled to deionized water to the feed centrifugal pump (33), and the deionized water is pumped into the separation tank (34) to clean the nano energetic material on the surface of the tubular membrane (311).

10. The separation method according to claim 5, characterized in that: In step S5, the specific operation steps are as follows: After cleaning, close the feed three-way solenoid valve (32), close the feed centrifugal pump (33), open the drain solenoid valve (39), open the drain three-way solenoid valve (37), and control the flow direction to drain; open the drain centrifugal pump (36), drain the clean water in the separation tank (34), and then close the drain solenoid valve (39), drain three-way solenoid valve (37), drain centrifugal pump (36), and circulation solenoid valve (312) respectively; open the backflushing solenoid valve (310) and backflushing centrifugal pump (38); backflushing the nano energetic materials enriched and cleaned on the surface of the tubular membrane (311) into the bottom of the separation tank (34); after repeating the above actions multiple times, the nano energetic materials in the suspension in the circulation tank (31) are finally left at the bottom of the separation tank (34); open the discharge solenoid valve (35), collect and filter the outflowing nano energetic materials and clean water mixture to obtain nano energetic materials.

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