Solid particle filtering equipment for ammonium perchlorate production
By designing a solid particle filtration device with a sliding outer shell, the problems of filtration clogging and residual solution were solved, achieving efficient solid particle filtration and purity assurance, and simplifying the removal process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN GAOJIA CHEM
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-14
AI Technical Summary
In the existing ammonium perchlorate production process, the filtration equipment is prone to clogging, resulting in poor filtration efficiency. Furthermore, the residual solution on the surface of the filtered solid particles affects the purity of the crystals, and it is inconvenient to remove the solid particles.
A solid particle filtration device is designed, comprising a base, a housing, a filter screen, a moving mechanism, a rinsing mechanism, and a storage mechanism. The filter screen is exposed by sliding the housing, allowing for convenient removal of solid particles. The filter screen is cleaned with ethanol using the rinsing mechanism to remove residual solution.
It effectively prevents filter clogging, ensures the purity of solid particles, simplifies the solid particle removal process, and improves filtration efficiency and crystal purity.
Smart Images

Figure CN224485172U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of ammonium perchlorate production technology, specifically to a solid particle filtration device for ammonium perchlorate production. Background Technology
[0002] Ammonium perchlorate is a strong oxidizing agent. When mixed with reducing substances, it can form explosive mixtures. Therefore, it is commonly used to manufacture fireworks, explosives, and missile fuel. In its production process, ammonium perchlorate solution is usually produced by chemical reaction, and then ammonium perchlorate crystals are prepared by allowing it to stand and cool to precipitate solid particles.
[0003] After crystals precipitate from ammonium perchlorate solution, filtration is required to separate the crystal particles. However, with current filtration equipment, solid particles can clog the filter screen due to prolonged use, leading to a decrease in subsequent filtration efficiency. Furthermore, the surface of the filtered solid particles often has residual solution attached, affecting the purity of the crystals. Additionally, it is important to facilitate the removal of solid particles after filtration. Therefore, a solid particle filtration device for ammonium perchlorate production is proposed. Utility Model Content
[0004] The purpose of this invention is to provide a solid particle filtration device for the production of ammonium perchlorate, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a solid particle filtration device for ammonium perchlorate production, comprising a base, the interior of which is hollow, and an inlet is provided at the top of the rear surface of the base. Inlet pipes are connected to both ends of the lower surface of the base, and outer shells are connected to the bottom ends of both inlet pipes. A moving mechanism is provided between the two outer shells and the base. Outlet pipes are connected to the lower surfaces of both outer shells, and multiple filter screens are commonly arranged inside the two outer shells. A rinsing mechanism is provided on the outer sides of the multiple filter screens. Support rods are connected to both the front and rear surfaces of the base, and a base is commonly connected to the bottom ends of the multiple support rods. A storage mechanism is provided inside the base.
[0006] Preferably, the moving mechanism includes a lead screw, a first connecting block, and a fixing rod. Two lead screws are symmetrically connected on the upper surface of the base. The outer surfaces of the two lead screws are fitted with first connecting blocks. The upper surfaces of the two first connecting blocks are connected with fixing rods, and the other ends of the two fixing rods are respectively connected to the two outer shells.
[0007] Preferably, the two outer shells are the same shape and size, and both outer shells have openings at their opposite ends, and both outer shells have transparent windows connected to their front surfaces.
[0008] Preferably, three filter screens are evenly spaced from top to bottom inside the two outer shells, and the three filter screens are connected by a connecting rod. The top of the connecting rod is connected to a second connecting block, and a guide rod is inserted inside the second connecting block.
[0009] Preferably, the rinsing mechanism includes an infusion tube and a nozzle. An infusion tube is provided below each of the plurality of filter screens, and the inner end of each of the plurality of infusion tubes is connected to a nozzle. The ends of the plurality of infusion tubes away from the nozzles are connected to a common connecting tube.
[0010] Preferably, the bottom of the connecting tube is a telescopic flexible tube structure, and the bottom end of the connecting tube is connected to a liquid extraction tube.
[0011] Preferably, the storage mechanism includes a cavity and a groove, the cavity being formed at both the left and right ends inside the base, and the groove being formed at the middle position of the upper surface of the base.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. This solid particle filtration equipment for ammonium perchlorate production has two outer shells. The filter screen is located inside the sealed space formed by the two outer shells. By sliding the two outer shells in opposite directions, the filter screen can be exposed to the external environment, making it convenient for staff to remove the filtered solid particles.
[0014] 2. This solid particle filtration equipment for ammonium perchlorate production has a rinsing mechanism, which includes a liquid delivery pipe and a nozzle. The rinsing mechanism can rinse the filter screen at different positions as the outer shell slides, thereby cleaning the surface of the solid particles, removing the attached residual solution, and ensuring the purity of the solid particles. Attached Figure Description
[0015] Figure 1 This is a frontal sectional view of the present invention.
[0016] Figure 2 For the present utility model Figure 1 Enlarged structural diagram at point A in the middle;
[0017] Figure 3 For the present utility model Figure 1 Enlarged structural diagram at point B;
[0018] Figure 4 This is a schematic diagram of the outer shell of this utility model in its separated state.
[0019] In the diagram: 1. Base; 2. Inlet; 3. Lead screw; 4. First connecting block; 5. Fixing rod; 6. Outer shell; 7. Inlet pipe; 8. Outlet pipe; 9. Transparent window; 10. Filter screen; 11. Connecting rod; 12. Second connecting block; 13. Guide rod; 14. Connecting pipe; 15. Infusion pipe; 16. Nozzle; 17. Support rod; 18. Base; 19. Cavity; 20. Groove; 21. Suction pipe. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0022] like Figure 1-4As shown, the solid particle filtration device for ammonium perchlorate production in this embodiment includes a base 1. The base 1 is hollow inside, and an inlet 2 is provided on the top of the rear surface of the base 1. The ammonium perchlorate solution carrying solid particles enters the interior of the base 1 through the inlet 2 for temporary storage. Inlet pipes 7 are connected to both ends of the lower surface of the base 1. The bottom ends of both inlet pipes 7 are connected to outer shells 6, and a moving mechanism is provided between the two outer shells 6 and the base 1. The ammonium perchlorate solution flows into the interior of the outer shells 6 through the inlet pipes 7. The opposing ends of the two outer shells 6 are tightly fitted together to form a sealed space. An outlet pipe 8 is connected to the lower surface of both outer shells 6, and the interiors of the two outer shells 6 share a common... Multiple filters 10 are provided. The ammonium perchlorate solution is filtered through the filters 10 to remove solid particles contained inside. The solution then flows out through the outlet pipe 8. Each of the multiple filters 10 is provided with a rinsing mechanism. The rinsing mechanism can perform reverse impact to prevent solid particles from clogging the filters 10. At the same time, it can also clean the surface of the solid particles to remove the attached residual solution. Ethanol is selected as the rinsing liquid. Support rods 17 are connected to the front and rear ends of the base 1. The bottom ends of the multiple support rods 17 are connected to the base 18. The base 18 is provided with a storage mechanism. After filtration, the solution is collected through the storage mechanism. At the same time, the storage mechanism stores the ethanol used for rinsing.
[0023] Specifically, the moving mechanism includes a lead screw 3, a first connecting block 4, and a fixing rod 5. Two lead screws 3 are symmetrically connected on the upper surface of the base 1. The outer surface of each lead screw 3 is fitted with a first connecting block 4. The upper surface of each first connecting block 4 is connected with a fixing rod 5. The other end of each fixing rod 5 is connected to a two outer shell 6. By controlling the synchronous rotation of the two lead screws 3 through a dual-axis motor installed on the upper surface of the base 1, the two first connecting blocks 4 and the fixing rod 5 can slide synchronously, thereby separating the two outer shells 6 and exposing the internal filter screen 10 to the external space.
[0024] Furthermore, the two outer shells 6 are identical in shape and size, and both outer shells 6 have openings at their opposite ends. Both outer shells 6 have transparent windows 9 connected to their front surfaces, allowing staff to easily observe the internal situation from the outside through the transparent windows 9.
[0025] Furthermore, three filter screens 10 are evenly spaced from top to bottom inside the two outer shells 6. The three filter screens 10 are connected by a connecting rod 11. The top of the connecting rod 11 is connected to a second connecting block 12. A guide rod 13 is inserted inside the second connecting block 12. The three filter screens 10 achieve multi-stage filtration and are integrated into a whole by the connecting rod 11. When the two outer shells 6 are separated, the second connecting block 12 can maintain its position by sliding on the guide rod 13.
[0026] Furthermore, the rinsing mechanism includes an infusion tube 15 and a nozzle 16. An infusion tube 15 is provided below each of the multiple filter screens 10. The inner ends of the multiple infusion tubes 15 are connected to the nozzles 16, and the ends of the multiple infusion tubes 15 away from the nozzles 16 are connected to a connecting tube 14.
[0027] Furthermore, the bottom of the connecting tube 14 is a telescopic hose structure, and the bottom end of the connecting tube 14 is connected to a liquid extraction tube 21. Through the telescopic hose structure, the connecting tube 14 will not obstruct the sliding of the outer shell 6.
[0028] Furthermore, the storage mechanism includes a cavity 19 and a groove 20. The cavity 19 is opened at both the left and right ends inside the base 18, and the groove 20 is opened at the middle position of the upper surface of the base 18. The cavity 19 is used to store ethanol for rinsing, and the groove 20 is used to collect the solution discharged after filtration, as well as the ethanol solution flowing down during the rinsing process.
[0029] The method of use in this embodiment is as follows: First, the ammonium perchlorate solution carrying solid particles is loaded into the base 1. Then, the solution enters the interior of the outer shell 6 through the inlet pipe 7. At this time, the solution is filtered, and the solid particles remain on the surface of the filter screen 10. Then, the solution continues to flow down through the outlet pipe 8 and enters the groove 20 for collection. After filtration, the water pump connected to the bottom of the connecting pipe 14 is started to extract the ethanol in the cavity 19 and rinse the filter screen 10 in reverse through the infusion pipe 15 and the nozzle 16. During the rinsing process, the two outer shells 6 are simultaneously controlled to slide in opposite directions, so that the nozzle 16 rinses each position of the filter screen 10 and exposes the filter screen 10 to the outside environment. After rinsing is completed, the solid particles on the filter screen 10 can be removed.
[0030] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.
Claims
1. A solid particle filtration device for ammonium perchlorate production, comprising a base (1), characterized in that: The base (1) is hollow inside, and a liquid inlet (2) is provided at the top of the rear surface of the base (1). Liquid inlet pipes (7) are connected to the left and right ends of the lower surface of the base (1). The bottom ends of the two liquid inlet pipes (7) are connected to the outer shell (6). A moving mechanism is provided between the two outer shells (6) and the base (1). Liquid outlet pipes (8) are connected to the lower surface of the two outer shells (6). Multiple filter screens (10) are provided inside the two outer shells (6). A rinsing mechanism is provided on the outside of the multiple filter screens (10). Support rods (17) are connected to the front and rear surfaces of the base (1). The bottom ends of the multiple support rods (17) are connected to the base (18). A storage mechanism is provided inside the base (18).
2. The solid particle filtration device for ammonium perchlorate production according to claim 1, characterized in that: The moving mechanism includes a lead screw (3), a first connecting block (4), and a fixing rod (5). Two lead screws (3) are symmetrically connected on the upper surface of the base (1). The outer surfaces of the two lead screws (3) are fitted with the first connecting block (4). The upper surfaces of the two first connecting blocks (4) are connected with the fixing rod (5), and the other ends of the two fixing rods (5) are respectively connected to the two outer shells (6).
3. A solid particle filtration device for ammonium perchlorate production according to claim 2, characterized in that: The two outer shells (6) are the same size and shape, and both outer shells (6) have openings at their opposite ends. Both outer shells (6) have transparent windows (9) connected to their front surfaces.
4. A solid particle filtration device for ammonium perchlorate production according to claim 1, characterized in that: The filter screen (10) is arranged in three equal intervals from top to bottom inside the two outer shells (6). The three filter screens (10) are connected by a connecting rod (11). The top of the connecting rod (11) is connected to a second connecting block (12). A guide rod (13) is inserted inside the second connecting block (12).
5. A solid particle filtration device for ammonium perchlorate production according to claim 1, characterized in that: The flushing mechanism includes an infusion tube (15) and a nozzle (16). An infusion tube (15) is provided below each of the multiple filters (10). The inner ends of the multiple infusion tubes (15) are connected to the nozzles (16), and the ends of the multiple infusion tubes (15) away from the nozzles (16) are connected to a connecting tube (14).
6. A solid particle filtration device for ammonium perchlorate production according to claim 5, characterized in that: The bottom of the connecting tube (14) is a telescopic flexible tube, and the bottom end of the connecting tube (14) is connected to a liquid extraction tube (21).
7. A solid particle filtration device for ammonium perchlorate production according to claim 1, characterized in that: The storage mechanism includes a cavity (19) and a groove (20). The cavity (19) is opened at both the left and right ends inside the base (18), and the groove (20) is opened at the middle position of the upper surface of the base (18).