Energetic crystal particle size screening device

Abstract

The invention discloses an energetic crystal particle size screening device which comprises a raw material tank, a screening box and a collecting tank. The screening box comprises a screening box body of a cuboid structure, a liquid inlet formed in the left side of the upper portion of the screening box body, a liquid outlet formed in the right side of the upper portion of the screening box body, a set of partition plates with the same height and vertically fixed to the upper plate face of a bottom plate of the screening box body, and a set of collecting funnels with holes connected to the lower portion of the bottom plate of the screening box body. The bottom of the grading box body is divided into crystal collecting areas which are mutually spaced by the partition plates, and the collecting funnels are respectively arranged below the crystal collecting areas; a liquid inlet of the screening box is connected with a discharging port pipeline of the raw material groove, a liquid outlet of the screening box is connected with a feeding port pipeline of the raw material groove, and the bottom of each collecting hopper is connected with one collecting groove through a pipeline. According to the energetic crystal particle size screening device, particle size screening of energetic crystals in feed liquid can be rapidly achieved.

Description

Technical Field

[0001] The invention relates to an energetic crystal particle size screening device, belonging to the technical field of energetic crystal material processing. Background Art

[0002] Energetic crystal material is the core component of the charge. In order to increase the density of the charge, crystals of different particle sizes need to be selected for grading. The narrower the particle size distribution of each particle size, the more conducive it is to digital grading.

[0003] After the preparation of energetic crystal materials, energetic crystal materials in the reactor exist in various particle sizes. In order to collect energetic crystal materials of specific particle sizes and improve the narrow distribution index of particle sizes in energetic crystal materials, screening is commonly used to obtain crystals of specific particle sizes by relying on sieve hole constraints. For different particle size requirements, multiple screenings are required, which is labor-intensive and has low work efficiency; and the screening method is suitable for large-particle crystals, but not for batch production of small-particle crystals of micron and quasi-micron particle sizes. Summary of the invention

[0004] The purpose of the present invention is to provide an energetic crystal particle size screening device to solve the shortcomings of traditional screening methods for collecting energetic crystal materials of specific particle sizes, such as high labor intensity, low work efficiency, and unsuitability for batch production of small-sized crystals of micron and quasi-micron particle sizes.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] An energetic crystal particle size screening device of the present invention comprises a raw material tank, a screening box and a collecting tank;

[0007] The upper end of the raw material trough is provided with a feed inlet, and the lower end of the raw material trough is provided with a discharge outlet;

[0008] The screening box comprises a screening box body of a rectangular parallelepiped structure, a liquid inlet arranged on the left side above the screening box body, a liquid outlet arranged on the right side above the screening box body, a group of partitions of the same height vertically fixed on the upper surface of the screening box body bottom plate, and a group of collecting funnels with openings connected to the bottom of the screening box body bottom plate;

[0009] The partition divides the bottom of the screening box into mutually spaced crystal collection areas, and each collection funnel is respectively arranged below each crystal collection area;

[0010] The liquid inlet of the screening box is connected to the discharge port pipeline of the raw material tank, the liquid outlet of the screening box is connected to the feed port pipeline of the raw material tank, and a circulating pump is arranged on the connecting pipeline between the liquid outlet of the screening box and the feed port of the raw material tank; the bottom of each collecting funnel is connected to a collecting tank through a pipeline, and a discharge valve is arranged on the connecting pipeline between each collecting funnel and the corresponding collecting tank; the circulating pump is used to control the slurry containing energetic crystals to circulate from the liquid inlet of the screening box to the liquid outlet, so that the energetic crystals in the slurry fall into different collecting funnels by their own weight, and then enter the corresponding collecting tank through the pipeline.

[0011] The collecting funnel is a cone structure that converges downward.

[0012] Working process

[0013] First, the screening box is filled with solvent, and then the circulation pump is turned on to allow the liquid containing energy crystals in the raw material tank to enter the screening box body from the liquid inlet of the screening box, and then flow toward the liquid outlet of the screening box at a certain flow rate, and flow back to the raw material tank; the energy-containing crystals in the liquid move horizontally with the liquid in the screening box body, and slide downward in a parabola under the action of gravity; since the particle sizes of the energy-containing crystals in the liquid are different, the energy-containing crystals will fall into different collecting funnels according to the size of the particle size; when all the energy-containing crystals in the raw material tank have entered the screening box, the circulation pump is turned off, and the discharge valves under each collecting funnel are opened respectively, so that the energy-containing crystals of different particle sizes enter the corresponding collecting tanks respectively.

[0014] Beneficial Effects

[0015] The energetic crystal particle size screening device of the present invention has a simple structure and is easy to operate, and can quickly implement particle size screening of energetic crystals in a liquid feed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the energetic crystal particle size screening device of the present invention;

[0017] Figure 2 It is a schematic diagram of the structure of the screening box in the energetic crystal particle size screening device of the present invention;

[0018] Figure 3 for Figure 2 AA section view;

[0019] Figure 4 for Figure 2 BB section view;

[0020] In the figure, 1-screening box, 11-liquid inlet, 12-liquid outlet, 13-partition, 14-collecting funnel, 15-screening box body, 2-raw material tank, 3-collecting tank, 4-circulation pump, 5-discharge valve. DETAILED DESCRIPTION

[0021] The content of the present invention is further described below in conjunction with the drawings and embodiments.

[0022] Example

[0023] like Figure 1 As shown, an energetic crystal particle size screening device of the present invention comprises a raw material tank 2, a screening box 1 and a collecting tank 3;

[0024] The upper end of the raw material tank 2 is provided with a feed inlet, and the lower end of the raw material tank 2 is provided with a discharge outlet;

[0025] like Figure 2-4 As shown, the screening box 1 comprises a screening box body 15 of a rectangular parallelepiped structure, a liquid inlet 11 arranged on the left side above the screening box body 15, a liquid outlet 12 arranged on the right side above the screening box body 15, a group of partitions 13 of the same height vertically fixed on the upper surface of the bottom plate of the screening box body 15, and a group of collecting funnels 14 with openings connected to the bottom of the bottom plate of the screening box body 15;

[0026] The partition 13 divides the bottom of the screening box 15 into mutually spaced crystal collection areas, and each collection funnel 14 is respectively arranged below each crystal collection area;

[0027] The liquid inlet 11 of the screening box 1 is connected to the discharge port pipeline of the raw material tank 2, the liquid outlet 12 of the screening box 1 is connected to the feed port pipeline of the raw material tank 2, and a circulating pump 4 is arranged on the connecting pipeline between the liquid outlet 12 of the screening box 1 and the feed port of the raw material tank 2; the bottom of each collecting funnel 14 is connected to a collecting tank 3 through a pipeline, and a discharge valve 5 is respectively arranged on the connecting pipeline between each collecting funnel 14 and the corresponding collecting tank 3; the circulating pump 4 controls the slurry containing energetic crystals to circulate from the liquid inlet 11 of the screening box 1 toward the liquid outlet 12, so that the energetic crystals in the slurry fall into different collecting funnels 14 by their own weight, and then enter the corresponding collecting tank 3 through the pipeline.

[0028] The collecting funnel 14 is a cone structure that converges downward.

[0029] Working process

[0030] First, the screening box 1 is filled with solvent, and then the circulation pump 4 is turned on to allow the liquid containing energetic crystals in the raw material tank 2 to enter the screening box body 15 from the liquid inlet 11 of the screening box 1, and then flow toward the liquid outlet 12 of the screening box 1 at a certain flow rate, and flow back to the raw material tank 2; the energetic crystals in the liquid move horizontally with the liquid in the screening box body 15, and slide downward in a parabola under the action of gravity; since the particle sizes of the energetic crystals in the liquid are different, the energetic crystals will fall into different collecting funnels 14 according to the size of the particle size; when all the energetic crystals in the raw material tank 2 enter the screening box 1, the circulation pump 4 is turned off, and the discharge valves 5 under each collecting funnel 14 are opened respectively, so that the energetic crystals of different particle sizes enter the corresponding collecting tank 3 respectively.

Claims

1. An energetic crystal particle size screening device, characterized in that: It includes a raw material tank, a screening box and a collecting tank; The upper end of the raw material trough is provided with a feed inlet, and the lower end of the raw material trough is provided with a discharge outlet; The screening box comprises a screening box body of a rectangular parallelepiped structure, a liquid inlet arranged on the left side above the screening box body, a liquid outlet arranged on the right side above the screening box body, a group of partitions of the same height vertically fixed on the upper surface of the screening box body bottom plate, and a group of collecting funnels with openings connected to the bottom of the screening box body bottom plate; The partition divides the bottom of the screening box into mutually spaced crystal collection areas, and each collection funnel is respectively arranged below each crystal collection area; The liquid inlet of the screening box is connected to the discharge port pipeline of the raw material tank, the liquid outlet of the screening box is connected to the feed port pipeline of the raw material tank, and a circulating pump is arranged on the connecting pipeline between the liquid outlet of the screening box and the feed port of the raw material tank; the bottom of each collecting funnel is connected to a collecting tank through a pipeline, and a discharge valve is arranged on the connecting pipeline between each collecting funnel and the corresponding collecting tank; the circulating pump is used to control the slurry containing energetic crystals to circulate from the liquid inlet of the screening box to the liquid outlet, so that the energetic crystals in the slurry fall into different collecting funnels by their own weight, and then enter the corresponding collecting tank through the pipeline.

2. The energetic crystal particle size screening device according to claim 1, characterized in that: The collecting funnel is a cone structure that converges downward.

Images