Pretreatment structure for preparing tungsten alloy pressing energy bullet core and preparation method of pretreatment structure

Abstract

The invention relates to the technical field of tungsten alloy pressure energy bomb core preparation, in particular to a pretreatment structure for tungsten alloy pressure energy bomb core preparation and a preparation method thereof.The pretreatment structure comprises a supporting bottom plate, the top of the supporting bottom plate is in bolted connection with a plurality of cleaning tanks arranged in sequence, and an overflow opening is formed between every two adjacent cleaning tanks; the adjacent cleaning tanks are communicated through overflow ports to form a countercurrent cleaning path, the front side of the top of the supporting bottom plate is in bolted connection with a dispersing structure, and the dispersing structure is communicated with the cleaning tank on the front side; the cleaning tank comprises a tank body, and the tank body is connected to the top of the supporting bottom plate in a bolted mode. According to the pre-treatment structure for preparing the tungsten alloy pressing energy bullet core and the preparation method of the pre-treatment structure, the problems of powder agglomeration, incomplete cleaning and incapability of continuous treatment in traditional pre-treatment are solved through multi-stage dispersion of a dispersion structure and countercurrent synergistic cleaning of a cleaning tank; and the beneficial effects of high efficiency, continuity and homogenization of tungsten alloy powder pretreatment are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tungsten alloy pressed kinetic energy penetrator preparation, in particular to a pretreatment structure for tungsten alloy pressed kinetic energy penetrator preparation and a preparation method thereof. BACKGROUND

[0002] It is known that tungsten alloy pressed kinetic energy penetrators are widely used in the military field due to their high density, high strength and good armor-piercing performance. In the preparation process of tungsten alloy penetrators, the pretreatment of the powder is crucial and directly affects the subsequent pressing, sintering effect and performance of the final product.

[0003] In the preparation process of tungsten alloy pressed kinetic energy penetrators, raw material pretreatment is a key link to ensure the stability of subsequent processes and product performance. When pretreating tungsten powder, chemical cleaning (such as dilute acid soaking) is usually used to remove oxides on the tungsten powder to avoid the formation of brittle phases during sintering, which affects the mechanical properties of the penetrator. However, the traditional chemical cleaning method has some disadvantages: the powder is prone to agglomeration during cleaning, resulting in incomplete cleaning and affecting the activity of the powder, incomplete removal of oxides, and thus affecting the mechanical properties of the tungsten alloy pressed kinetic energy penetrator. Moreover, the existing cleaning equipment cannot achieve continuous and efficient cleaning of the powder, resulting in low production efficiency. SUMMARY

[0004] (I) Technical problems solved To overcome the shortcomings of the prior art, the present application provides a pretreatment structure for tungsten alloy pressed kinetic energy penetrator preparation and a preparation method thereof. The structure has a multi-stage dispersion and counter-flow cleaning of the dispersion structure and the cleaning tank, solving the problems of powder agglomeration, incomplete cleaning and inability to continuously process in traditional pretreatment, and achieving the advantages of high efficiency, continuity and uniformity of tungsten alloy powder pretreatment.

[0005] (II) Technical solutions The above technical problems of the present application are solved by the following technical solutions: a pretreatment structure for tungsten alloy pressed kinetic energy penetrator preparation, comprising a support bottom plate, a plurality of cleaning tanks are sequentially arranged on the top of the support bottom plate, overflow openings are provided between adjacent cleaning tanks, adjacent cleaning tanks are connected through the overflow openings to form a counter-flow cleaning path, a dispersion structure is bolted to the front side of the top of the support bottom plate, and the dispersion structure is connected to the front side cleaning tank The cleaning tank comprises a tank body which is bolted on the top of a supporting bottom plate, a guide groove in a V shape is arranged inside the overflow port of the tank body, and an intercepting net is arranged on the guide groove, the surface of the intercepting net is connected with the inner wall of the tank body, a discharge port is arranged at the lowest position inside the tank body, two partitions are bolted inside the tank body, the inside of the tank body is divided into a premixing area, a cleaning area and a transition area by the partitions, a cleaning assembly is arranged inside the cleaning area, and a flow gap is formed between the bottom of the partition and the inner wall of the tank body.

[0006] By adopting the technical scheme, the cleaning tank is arranged, a plurality of cleaning tanks are sequentially connected through overflow ports, the powder suspension is fed from the front cleaning tank, is preliminarily dispersed in the premixing area and then is fed into the cleaning area for treatment, and then is fed into the next tank body through the discharge port in the transition area; the cleaning liquid is fed from the rear cleaning tank, flows forward through the overflow port, and forms a countercurrent cleaning; the guide groove guides the liquid flow, the intercepting net prevents the powder from flowing away with the overflow, and the discharge port is used for discharging the treated powder, the utilization rate of the cleaning liquid is improved by the countercurrent design, the powder is more uniformly dispersed by the partitioned treatment, the material waste is avoided by the intercepting net, and the continuous cleaning is realized as a whole, and the production efficiency is improved.

[0007] The cleaning assembly comprises a supporting ring which is bolted at the bottom of the inner wall of the tank body and is arranged inside the cleaning area, a vibration rod is annularly welded on the surface of the supporting ring, a plurality of disturbing pieces are annularly welded on the surface of the vibration rod, a stirring shaft is rotatably connected inside the supporting ring, a support is bolted at the top of the stirring shaft, helical blades are welded on the surface of the stirring shaft, a driving shaft is bolted at the bottom of the support, a plurality of elastic rods are annularly bolted at the bottom of the support, a plurality of protrusions are annularly welded on the inner wall of the supporting ring, and the protrusions are used in cooperation with the elastic rods.

[0008] By adopting the technical scheme, when the stirring shaft rotates, the helical blades push the powder to move up and down, the elastic rods at the bottom of the support rotate with the stirring shaft, contact the protrusions on the inner wall of the supporting ring, elastically deform, and then quickly reset and impact the supporting ring by the elasticity, so that the supporting ring transmits the vibration force to the vibration rod, the vibration rod and the disturbing pieces vibrate together, the disturbing pieces are driven to disturb the powder in the cleaning area, local disturbance is further enhanced, the powder is broken by the synergistic effect of vibration and stirring, the cooperation of the elastic rods and the protrusions strengthens local turbulent flow, the powder surface cleaning effect is improved, and the oxide impurities are ensured to be fully separated.

[0009] The two vibration rods are respectively arranged inside the premixing area and the transition area, two helical blades are coaxially arranged on the surface of the stirring shaft, the inner helical blade is welded on the surface of the stirring shaft, the outer helical blade is connected with the stirring shaft through a supporting rod, and the two helical blades are oppositely arranged.

[0010] By the above technical scheme, the front side vibration rod vibrates in the premixing area to preliminarily disperse the entering powder, the rear side vibration rod vibrates in the transition area to prevent the powder from settling; the two oppositely arranged spiral blades form up-down circulating flow, the inner blade pushes the powder at the bottom upward, and the outer blade guides the powder at the top downward, the vibration of the premixing area and the transition area avoids powder agglomeration and settling, the reverse spiral blades promote the powder and the cleaning liquid to be fully mixed to improve cleaning uniformity.

[0011] The present application is further provided that: the top of the plurality of cleaning tanks is bolted with a support plate, and the top of the support plate is bolted with a protective shell, the top of the drive shaft extends into the interior of the protective shell, the surface of the drive shaft is sleeved with a synchronous wheel, the interior of the plurality of synchronous wheels is meshed and wound with a synchronous belt, and the top of the front side drive shaft extends to the outside of the protective shell and is externally connected with a drive motor.

[0012] By the above technical scheme, the drive components are protected by the protective shell arranged on the support plate, the drive motor drives the front side drive shaft to rotate, synchronous transmission is achieved through the synchronous wheel and the synchronous belt, all the drive shafts are synchronously rotated, and the stirring shafts in each cleaning tank are driven to work cooperatively, synchronous transmission ensures consistent stirring rhythm of each cleaning tank, and the stability of multi-stage cleaning is improved.

[0013] The present application is further provided that: the dispersion structure includes a dispersion tank, the dispersion tank is bolted at the front side of the top of the support bottom plate, and the dispersion tank is communicated with the front side cleaning tank through a pipeline, a main shaft is rotatably connected in the interior of the dispersion tank, two shaft sleeves are sleeved on the surface of the main shaft, a fixed rod is annularly welded on the surface of the shaft sleeve, a stirring paddle is welded on the side of the fixed rod away from the shaft sleeve, the two stirring paddles are oppositely inclined, and a turbulence assembly is sleeved on the top and the bottom of the surface of the main shaft.

[0014] By the above technical scheme, the main shaft in the dispersion tank is rotated to drive the fixed rod and the stirring paddle on the shaft sleeve to rotate, the powder is preliminarily stirred and dispersed, the turbulence assembly is further disturbed to enhance the dispersion effect while the main shaft is rotating, the intermittent discharging assembly is rotated with the main shaft to control the rate of the powder entering the dispersion tank, the powder is fed synchronously in the dispersion process, the multi-stage dispersion and linkage structure can break the powder agglomeration, the intermittent discharging avoids material accumulation, the initial dispersion of the powder is more uniform, and a foundation is laid for subsequent cleaning.

[0015] The application is further provided with: the fixed ring is connected with the inner wall of the dispersion tank, the inside of the fixed ring is provided with a connecting ring, and the inside of the connecting ring is provided with a sleeve ring, the sleeve ring is rotatably sleeved on the surface of the main shaft, elastic nets are arranged between the connecting ring, the fixed ring and the sleeve ring, the inside of the connecting ring is penetrated by a guide rod, the top of the connecting ring is provided with a rotating ring, the rotating ring is sleeved on the surface of the main shaft, the bottom of the rotating ring is annularly welded with a plurality of push blocks, the push blocks are used in cooperation with the guide rod, the surface of the rotating ring is sleeved with a connecting plate and a spring, and the top of the spring is connected with the connecting plate.

[0016] The above technical scheme is adopted, the turbulence assembly is arranged, the main shaft drives the rotating ring to rotate, the push blocks rotate with the rotating ring, when the push blocks contact with the guide rod, the guide rod is pushed downward through the inclined surface, the connecting ring compresses the spring, when the push blocks are separated, the spring resets to make the connecting ring move upward, the elastic net deforms up and down with the connecting ring, the surrounding powder is disturbed, the complex flow field is generated through the reciprocating deformation of the elastic net, the powder dispersion effect is strengthened, local agglomeration is avoided, and dispersion uniformity is improved.

[0017] The application is further provided with: the bottom of the sleeve ring and the fixed ring is welded with a support frame, the bottom of the guide rod penetrates the inside of the support frame and is connected with the support frame in sliding mode, and the spring is connected with the connecting ring and the support frame on the side close to the connecting ring and the support frame.

[0018] The above technical scheme is adopted, the relative position of the sleeve ring and the fixed ring is fixed through the support frame, the guide rod slides in the support frame, the upward and downward movement of the connecting ring is stable, the spring provides reset power for the connecting ring, the deformation and reset law of the elastic net are performed, the turbulence effect is uniform through the stable movement track, the elastic force of the spring makes the dispersion process continuous and stable, and powder dispersion fluctuation is avoided.

[0019] The application is further provided with: the side of the push block is provided with an inclined surface, the inclined surface directions of the plurality of push blocks are consistent with the rotation direction of the main shaft, and the top of the guide rod is provided with a smooth curved surface.

[0020] The above technical scheme is adopted, when the main shaft rotates, the inclined surface of the push block contacts with the smooth curved surface of the guide rod, the friction resistance is reduced, the guide rod smoothly moves downward, the plurality of push blocks sequentially push the guide rod according to the rotation direction of the main shaft, the continuous disturbance action is formed, the powder is always in the dispersion state through the continuous disturbance, and the dispersion efficiency is improved.

[0021] The application is further provided with: the intermittent discharging assembly comprises a rotating disc and a fixed disc, the fixed disc is sleeved on the surface of the main shaft through a bearing, and the surface of the fixed disc is connected with the inner wall of the dispersion tank, the rotating disc is fixedly sleeved on the surface of the main shaft, and the rotating disc is located at the bottom of the fixed disc, the rotating disc and the fixed disc are in rotating contact through a sealing element, the interiors of the rotating disc and the fixed disc are both provided with a discharging hole, and the two discharging holes are used in cooperation, and the top of the fixed disc is in rotating contact with a scraper, and the side of the scraper close to the main shaft is bolted with the main shaft.

[0022] By adopting the above technical scheme, the intermittent discharging assembly is arranged, the main shaft drives the rotating disc to rotate, when the discharging hole of the rotating disc is aligned with the discharging hole of the fixed disc, the powder enters the dispersion tank through the discharging hole, along with the continuous rotation of the rotating disc, the discharging holes are staggered, and the discharging is stopped, the scraper rotates along with the main shaft, and the residual powder on the surface of the fixed disc is cleaned, the feeding amount is controlled through intermittent discharging, the material in the dispersion tank is prevented from being too much to cause incomplete dispersion, the scraper prevents the powder from being left and caked, and smooth discharging is ensured.

[0023] A preparation method of a pretreatment structure for preparing a tungsten alloy pressed energy projectile core, comprising the following steps: S1. The tungsten alloy powder is added into the dispersion tank, the main shaft drives the rotating disc to rotate, intermittent discharging is realized through the periodic alignment of the discharging holes of the rotating disc and the fixed disc, and the scraper synchronously cleans the residual powder on the surface of the fixed disc; S2. The main shaft in the dispersion tank rotates, and the stirring paddle preliminarily stirs the falling powder; at the same time, the rotating ring drives the pushing block to push the guide rod, the connecting ring moves up and down, the elastic net is deformed to generate a disturbance, the powder is further dispersed, and agglomeration is broken; S3. The dispersed powder suspension enters the front cleaning tank, is preliminarily dispersed by the vibration rod in the premixing area, and then enters the cleaning area; the cleaning area is disturbed by the vibration rod, circularly stirred by the stirring shaft and the spiral blade, and locally disturbed by the elastic rod and the protrusion, so that the surface oxide of the powder is removed; the cleaning liquid is added from the rear cleaning tank, flows reversely through the overflow port, and fully contacts with the powder; S4. The cleaned powder passes through the vibration rod in the transition area to prevent sedimentation, enters the next cleaning tank through the flow gap for repeated cleaning; the driving shafts synchronously driven ensure that the stirring rhythms of the tanks are consistent, and the multi-stage cleaning effect is improved; S5. The powder after the final cleaning is discharged through the discharge ports of the tank bodies, enters subsequent pretreatment links such as drying, and completes the whole pretreatment process.

[0024] (Three) beneficial effects Compared with the prior art, the application provides a pretreatment structure for preparing a tungsten alloy pressed energy projectile core and a preparation method thereof, and has the following beneficial effects: The pretreatment structure for preparing tungsten alloy pressed energy projectile cores and a preparation method thereof, by setting a cleaning tank, the cleaning tank is cooperated with the zoning function through multi-stage countercurrent design, continuous and efficient cleaning of tungsten alloy powder is realized, the tank body is separated into a premixing area, a cleaning area and a transition area through a partition, adjacent tank bodies are connected through overflow ports to form a countercurrent path, the cleaning liquid and the powder suspension flow reversely and fully contact; the cleaning area is internally provided with a cleaning assembly, the vibration disturbance and stirring action are combined to strengthen the cleaning effect; the flow guide groove is cooperated with the interception net to prevent powder loss, the discharge port ensures complete discharge of the material, the overall structure realizes the continuity, uniformity and efficiency of powder cleaning; by setting a dispersion structure, the dispersion structure solves the powder agglomeration problem through pre-dispersion treatment, the stirring paddle and the turbulence assembly are cooperated through the main shaft to realize uniform dispersion of the powder; the intermittent feeding assembly controls the powder feeding rate, avoids incomplete dispersion caused by too fast feeding, provides uniformly dispersed raw materials for the subsequent cleaning link, and improves the overall effect of pretreatment. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a schematic diagram of the overall structure in the application; Figure 2 It is a schematic diagram of the cleaning tank structure in the application; Figure 3 It is a schematic diagram of the cleaning assembly structure in the application; Figure 4 It is a schematic diagram of the dispersion structure in the application; Figure 5 It is a schematic diagram of the turbulence assembly structure in the application; Figure 6 It is a schematic diagram of the intermittent feeding assembly structure in the application; Figure 7 It is a flowchart of the preparation method of the pretreatment structure for preparing tungsten alloy pressed energy projectile cores in the application.

[0026] In the figure: 1, support bottom plate; 2, cleaning tank; 21, tank body; 22, flow guide groove; 23, interception net; 24, partition; 25, cleaning assembly; 251, support ring; 252, vibration rod; 253, disturbance piece; 254, stirring shaft; 255, support; 256, helical blade; 257, drive shaft; 258, elastic rod; 259, protrusion; 26, flow gap; 3, dispersion structure; 31, dispersion tank; 32, main shaft; 33, shaft sleeve; 34, stirring paddle; 35, turbulence assembly; 351, fixed ring; 352, connecting ring; 353, sleeve ring; 354, elastic net; 355, guide rod; 356, rotating ring; 357, pushing block; 358, connecting plate; 359, spring; 36, intermittent feeding assembly; 361, rotating disc; 362, fixed disc; 363, feeding hole; 364, scraper; 4, support plate; 5, protective shell; 6, synchronous wheel; 7, synchronous belt; 8, support frame. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0028] Embodiment 1 Please refer to Figures 1-3 A pretreatment structure for preparing a pressed tungsten alloy penetrator includes a support bottom plate 1, a plurality of cleaning tanks 2 are sequentially arranged on the top of the support bottom plate 1 and are bolted, overflow ports are arranged between adjacent cleaning tanks 2, and the adjacent cleaning tanks 2 are communicated through the overflow ports to form a countercurrent cleaning path, a dispersion structure 3 is bolted to the front side of the top of the support bottom plate 1 and is communicated with the front side cleaning tank 2 The cleaning tank 2 includes a tank body 21, the tank body 21 is bolted to the top of the support bottom plate 1, a V-shaped flow guide groove 22 is arranged in the inside of the overflow port of the tank body 21, an intercepting net 23 is arranged on the flow guide groove 22, the surface of the intercepting net 23 is connected with the inner wall of the tank body 21, a discharge port is arranged at the lowest position in the inside of the tank body 21, two partition plates 24 are bolted in the inside of the tank body 21, the inside of the tank body 21 is divided into a premixing area, a cleaning area and a transition area by the partition plates 24, a cleaning assembly 25 is arranged in the inside of the cleaning area, a flow gap 26 is formed between the bottom of the partition plate 24 and the inner wall of the tank body 21, by arranging the cleaning tank 2, a plurality of cleaning tanks 2 are sequentially communicated through the overflow ports, the powder suspension is added from the front side cleaning tank 2, is preliminarily dispersed in the premixing area and then is treated in the cleaning area, and then is discharged into the next tank body 21 through the discharge port in the transition area; the cleaning liquid is added from the rear side cleaning tank 2, flows forward through the overflow ports to form a countercurrent cleaning, the flow guide groove 22 guides the liquid flow, the intercepting net 23 prevents the powder from flowing out with the overflow, the discharge port is used for discharging the treated powder, the utilization rate of the cleaning liquid is improved by the countercurrent design, the powder is more uniformly dispersed by the partition treatment, the intercepting net 23 avoids material waste, and the whole realizes continuous cleaning to improve the production efficiency.

[0029] The cleaning assembly 25 comprises a supporting ring 251 which is bolted to the bottom of the inner wall of the groove body 21 and is located inside the cleaning area, the surface of the supporting ring 251 is annularly welded with a vibrating rod 252, the surface of the vibrating rod 252 is annularly welded with a plurality of disturbing pieces 253, the inside of the supporting ring 251 is rotatably connected with a stirring shaft 254, the top of the stirring shaft 254 is bolted with a support 255, the surface of the stirring shaft 254 is welded with a spiral blade 256, the bottom of the support 255 is bolted with a driving shaft 257, the bottom of the support 255 is annularly bolted with a plurality of elastic rods 258, the inner wall of the supporting ring 251 is annularly welded with a plurality of protrusions 259 which are used in cooperation with the elastic rods 258, by arranging the cleaning assembly 25, when the stirring shaft 254 rotates, the spiral blade 256 pushes the powder up and down, the elastic rods 258 at the bottom of the support 255 rotate with the stirring shaft 254 and are in contact with the protrusions 259 on the inner wall of the supporting ring 251 to produce elastic deformation, when the elastic rods 258 are separated from the protrusions 259, they will quickly reset and elastically impact the supporting ring 251, so that the supporting ring 251 transmits the vibration force to the vibrating rod 252, so that the vibrating rod 252 and the disturbing pieces 253 vibrate together, the disturbing pieces 253 can be driven to disturb the powder in the cleaning area, further enhancing local disturbance, breaking the powder aggregation through the synergistic effect of vibration and stirring, the cooperation of the elastic rods 258 and the protrusions 259 strengthens the local turbulent flow, improves the powder surface cleaning effect, and ensures that the oxide impurities are fully separated.

[0030] The two vibrating rods 252 on the front side and the rear side are respectively located inside the premixing area and the transition area, the spiral blades 256 are provided in two and coaxially arranged on the surface of the stirring shaft 254, the inner side spiral blade 256 is welded on the surface of the stirring shaft 254, the outer side spiral blade 256 is connected with the stirring shaft 254 through a support rod, and the two spiral blades 256 are oppositely arranged, the front side vibrating rod 252 vibrates in the premixing area to make the entering powder preliminarily dispersed, and the rear side vibrating rod 252 vibrates in the transition area to prevent the powder from settling; the two oppositely arranged spiral blades 256 form an up-down circulating flow, the inner side blade pushes the powder at the bottom upward, and the outer side blade guides the powder at the top downward, the vibration of the premixing area and the transition area avoids the powder aggregation and settlement, the oppositely arranged spiral blades 256 promote the powder and the cleaning liquid to be fully mixed, and improve the cleaning uniformity.

[0031] The top of the plurality of cleaning tanks 2 is bolted with a support plate 4, the top of the support plate 4 is bolted with a protective shell 5, the top of the driving shaft 257 extends to the inside of the protective shell 5, the surface of the driving shaft 257 is sleeved with a synchronous wheel 6, the inside of the plurality of synchronous wheels 6 is meshed and wound with a synchronous belt 7, the top of the front driving shaft 257 extends to the outside of the protective shell 5 and is externally connected with a driving motor, the driving part is protected by the protective shell 5 arranged on the support plate 4, the driving motor drives the front driving shaft 257 to rotate, the synchronous wheel 6 and the synchronous belt 7 are driven to make all the driving shafts 257 rotate synchronously, and then the stirring shafts 254 in each cleaning tank 2 are driven to work cooperatively, synchronous transmission ensures that the stirring rhythm of each cleaning tank 2 is consistent, and the stability of multi-stage cleaning is improved.

[0032] The working principle of the embodiment is as follows: the plurality of cleaning tanks 2 are sequentially connected through overflow ports to form a countercurrent path, the powder suspension enters from the front cleaning tank 2, passes through a premixing area, a cleaning area and a transition area, and then enters the next tank body 21 through the flow gap 26 at the bottom of the partition plate 24; the cleaning liquid is added from the rear cleaning tank 2, flows reversely along the overflow port, and fully contacts the powder suspension to improve the cleaning efficiency; in the premixing area, the front vibration rod 252 vibrates with the support ring 251 to preliminarily disperse the entering powder to avoid agglomeration; in the cleaning area, the driving motor drives all the driving shafts 257 to rotate synchronously through the synchronous wheel 6 and the synchronous belt 7, so that the stirring shafts 254 of each cleaning tank 2 work cooperatively with the vibration assembly to ensure that the multi-stage cleaning rhythm is consistent and the cleaning stability is improved; when the stirring shaft 254 rotates, the spiral blade 256 pushes the powder to circulate up and down (the inside blade pushes upward and the outside blade guides downward), and at the same time, the elastic rod 258 at the bottom of the support 255 rotates with the stirring shaft 254, contacts the protrusion 259 on the inner wall of the support ring 251, elastically deforms and resets, impacts the support ring 251 to generate vibration, drives the vibration rod 252 and the disturbing part 253 to further disturb the powder, and strengthens the removal of surface oxides; in the transition area, the rear vibration rod 252 vibrates to prevent the powder from settling to ensure that the powder in a suspended state enters the next tank body 21, the cleaning liquid flows through the flow guide groove 22, the interception net 23 prevents the powder from flowing away with the overflow, and the discharge port at the bottom of the tank body 21 concentrates and discharges the powder after cleaning to ensure that there is no residual material.

[0033] Embodiment 2 Reference Figures 4-6A pretreatment structure for preparing tungsten alloy compressed energy projectile cores also includes a dispersion structure 3. The dispersion structure 3 includes a dispersion tank 31, which is bolted to the front side of the top of a supporting base plate 1. The dispersion tank 31 is connected to a front cleaning tank 2 via a pipe. A main shaft 32 is rotatably connected inside the dispersion tank 31, and two bushings 33 are fitted onto the surface of the main shaft 32. A fixing rod is annularly welded to the surface of each bushing 33, and a stirring blade 34 is welded to the side of the fixing rod away from the bushing 33. The upper and lower stirring blades 34 are arranged at opposite inclinations. A turbulence-inducing assembly 35 is fitted onto the top and bottom of the main shaft 32 surface, and an intermittent feeding group is provided at the bottom of the top turbulence-inducing assembly 35. The main shaft 32 is fitted with both the turbulence-dispersing component 35 and the intermittent feeding component 36. By setting the dispersion structure 3, the main shaft 32 inside the dispersion tank 31 rotates, which drives the fixed rod on the bushing 33 and the stirring blade 34 to rotate, thus initially stirring and dispersing the powder. While the main shaft 32 rotates, it will drive the turbulence-dispersing component 35 to further disrupt the flow field and enhance the dispersion effect. The intermittent feeding component 36 rotates with the main shaft 32 and can control the rate at which the powder enters the dispersion tank 31. It can feed synchronously with the dispersion process. The multi-stage dispersion and linkage structure can break the powder agglomeration, while the intermittent feeding avoids material accumulation, making the initial dispersion of the powder more uniform and laying the foundation for subsequent cleaning.

[0034] The turbulence-inducing component 35 includes a fixed ring 351, the surface of which is connected to the inner wall of the dispersion tank 31. A connecting ring 352 is disposed inside the fixed ring 351, and a collar 353 is disposed inside the connecting ring 352. The collar 353 is rotatably fitted onto the surface of the main shaft 32. An elastic mesh 354 is disposed between the connecting ring 352, the fixed ring 351, and the collar 353. A guide rod 355 passes through the interior of the connecting ring 352. A rotating ring 356 is disposed at the top of the connecting ring 352 and is fitted onto the surface of the main shaft 32. Several pushing blocks 357 are annularly welded to the bottom of the rotating ring 356. The pushing blocks 357 cooperate with the guide rod 355. The surface of 6 is fitted with a connecting plate 358 and a spring 359, with the top of the spring 359 connected to the connecting plate 358. By setting the turbulence assembly 35, the main shaft 32 drives the rotating ring 356 to rotate, and the pushing block 357 rotates with the rotating ring 356. When the pushing block 357 contacts the guide rod 355, the guide rod 355 is pushed down by the inclined surface, which drives the connecting ring 352 to compress the spring 359. When the pushing block 357 leaves, the spring 359 resets, causing the connecting ring 352 to move up. The elastic net 354 deforms with the up and down movement of the connecting ring 352, disturbing the surrounding powder. The reciprocating deformation of the elastic net 354 generates a complex flow field, which enhances the powder dispersion effect, avoids local agglomeration, and improves the dispersion uniformity.

[0035] The support frame 8 is welded between the sleeve ring 353 and the bottom of the fixed ring 351, the guide rod 355 penetrates the inside of the support frame 8 and is connected with the support frame 8 in sliding mode, the spring 359 is connected with the connecting ring 352 and the support frame 8 respectively on the side close to the support frame 8, the relative position of the sleeve ring 353 and the fixed ring 351 is fixed through the support frame 8, the guide rod 355 slides in the support frame 8, the upward and downward movement of the connecting ring 352 is stable, the spring 359 provides the reset power for the connecting ring 352, the deformation and reset of the elastic net 354 are regular, the uniform disturbance effect is ensured through the stable movement track, the elastic force of the spring 359 makes the dispersion process continuous and stable, and the fluctuation of powder dispersion is avoided.

[0036] The side of the pushing block 357 is provided in the form of an inclined surface, the inclined surface directions of the plurality of pushing blocks 357 are consistent with the rotation direction of the main shaft 32, the top of the guide rod 355 is provided in the form of a smooth curved surface, when the main shaft 32 rotates, the inclined surface of the pushing block 357 is in contact with the smooth curved surface of the guide rod 355, the frictional resistance is reduced, the guide rod 355 smoothly moves downward, the plurality of pushing blocks 357 sequentially push the guide rod 355 in the rotation direction of the main shaft 32, the continuous disturbance action is formed, the powder is ensured to be in the dispersed state through the continuous disturbance, and the dispersion efficiency is improved.

[0037] The intermittent feeding assembly 36 includes a rotating disc 361 and a fixed disc 362, the fixed disc 362 is rotatably sleeved on the surface of the main shaft 32 through a bearing, and the surface of the fixed disc 362 is connected with the inner wall of the dispersion tank 31, the rotating disc 361 is fixedly sleeved on the surface of the main shaft 32, and the rotating disc 361 is located at the bottom of the fixed disc 362, the rotating disc 361 and the fixed disc 362 are rotatably contacted through a sealing element, the interiors of the rotating disc 361 and the fixed disc 362 are both provided with a feeding hole 363, and the two feeding holes 363 are used in cooperation, the top of the fixed disc 362 is rotatably contacted with a scraper 364, and the side of the scraper 364 close to the main shaft 32 is bolted with the main shaft 32, through the arrangement of the intermittent feeding assembly 36, the main shaft 32 drives the rotating disc 361 to rotate, when the feeding hole 363 of the rotating disc 361 is aligned with the feeding hole 363 of the fixed disc 362, the powder enters the dispersion tank 31 through the feeding hole 363, along with the continuous rotation of the rotating disc 361, the feeding hole 363 is misaligned, and the feeding is stopped, and the scraper 364 rotates with the main shaft 32, and the residual powder on the surface of the fixed disc 362 is cleaned, the feeding amount is controlled through the intermittent feeding, the dispersion is not incomplete due to too much material in the dispersion tank 31, the scraper 364 prevents the powder from being left and caked, and the feeding is ensured to be smooth.

[0038] The working principle of this embodiment is as follows: The main shaft 32 drives the rotating disk 361 to rotate. When the feeding hole 363 of the rotating disk 361 is aligned with the feeding hole 363 of the fixed disk 362, the tungsten alloy powder enters the dispersion tank 31 through the feeding hole 363. The rotating disk 361 continues to rotate, and feeding stops when the feeding holes 363 are misaligned, thus achieving intermittent feeding. At the same time, the scraper 364 rotates with the main shaft 32 to clean the residual powder on the surface of the fixed disk 362, preventing agglomeration and blockage. The rotation of the main shaft 32 drives the fixed rod on the bushing 33 and the stirring blade 34 to rotate. The vertically and horizontally tilted blades initially stir the falling powder. Stirring breaks up large agglomerates; the main shaft 32 drives the rotating ring 356 to rotate, and the pushing block 357 rotates with the rotating ring 356 and comes into contact with the guide rod 355. The guide rod 355 is pushed down by the inclined plane, which drives the connecting ring 352 to compress the spring 359; after the pushing block 357 leaves, the spring 359 returns to its original position, causing the connecting ring 352 to move up. The elastic net 354 deforms with the up and down movement of the connecting ring 352, forming a complex flow field, further dispersing the powder and avoiding local agglomeration; the dispersed powder mixes with the liquid to form a suspension, which is transported to the front cleaning tank 2 through the pipeline to provide uniform raw materials for subsequent cleaning.

[0039] Example 3 like Figure 7 As shown, the present invention also provides a method for preparing a pretreatment structure for tungsten alloy compressed energy projectile core, comprising the following steps: S1. Tungsten alloy powder is added to the dispersion tank 31. The main shaft 32 drives the rotating disk 361 to rotate. Intermittent feeding is achieved by periodically aligning the rotating disk 361 with the feeding hole 363 of the fixed disk 362. The scraper 364 simultaneously cleans the residual powder on the surface of the fixed disk 362. S2. The main shaft 32 rotates inside the dispersion tank 31, and the stirring blades 34 perform preliminary stirring on the falling powder; at the same time, the rotating ring 356 drives the push block 357 to push the guide rod 355, causing the connecting ring 352 to move up and down, and the elastic net 354 deforms to generate turbulence, further dispersing the powder and breaking up agglomeration. S3. The dispersed powder suspension enters the front cleaning tank 2, and after being initially dispersed by the vibrating rod 252 in the premixing zone, it enters the cleaning zone. The cleaning zone removes oxides from the powder surface through the disturbance of the vibrating rod 252, the circulation stirring of the stirring shaft 254 and the spiral blade 256, combined with the local disturbance of the elastic rod 258 and the protrusion 259. The cleaning liquid is added from the rear cleaning tank 2 and flows in the opposite direction through the overflow port to fully contact the powder. S4. After cleaning, the powder passes through the transition zone vibrating rod 252 to prevent sedimentation, and enters the next cleaning tank 2 through the flow notch 26 for repeated cleaning; the synchronous drive shaft 257 ensures that the stirring rhythm of each tank is consistent, improving the multi-stage cleaning effect; S5. The powder that has been cleaned is discharged through the discharge port of each tank 21 and enters the subsequent pretreatment stages such as drying to complete the entire pretreatment process.

[0040] The specific embodiments are only illustrative of the present application, and are not a limitation on the present application, and those skilled in the art can make modifications to the embodiments according to the needs without creative contribution after reading the specification, although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A pre-treatment structure for the production of pressed energy projectile from a tungsten alloy, comprising a support base plate (1), characterised in that: The top of the support base plate (1) is bolted with several sequentially arranged cleaning tanks (2), and an overflow port is provided between adjacent cleaning tanks (2). The adjacent cleaning tanks (2) are connected through the overflow port to form a countercurrent cleaning path. A dispersion structure (3) is bolted to the front side of the top of the support base plate (1), and the dispersion structure (3) is connected to the front cleaning tank (2). The cleaning tank (2) includes a tank body (21), which is bolted to the top of the supporting base plate (1). The overflow port of the tank body (21) is provided with a V-shaped guide channel (22), and the guide channel (22) is provided with an interception net (23). The surface of the interception net (23) is connected to the inner wall of the tank body (21). The lowest point inside the tank body (21) is provided with a discharge port. Two partitions (24) are bolted inside the tank body (21). The partitions (24) divide the inside of the tank body (21) into a premixing zone, a cleaning zone and a transition zone. The cleaning zone is provided with a cleaning component (25). A flow gap (26) is formed between the bottom of the partition (24) and the inner wall of the tank body (21).

2. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 1, characterized in that: The cleaning assembly (25) includes a support ring (251), which is bolted to the bottom of the inner wall of the tank (21) and is located inside the cleaning zone. A vibrating rod (252) is welded to the surface of the support ring (251) in an annular shape. Several disturbance elements (253) are welded to the surface of the vibrating rod (252) in an annular shape. A stirring shaft (254) is rotatably connected inside the support ring (251), and a bracket (255) is bolted to the top of the stirring shaft (254). Spiral blades (256) are welded to the surface of the stirring shaft (254). A drive shaft (257) is bolted to the bottom of the bracket (255), and several elastic rods (258) are bolted to the bottom of the bracket (255) in an annular shape. Several protrusions (259) are welded to the inner wall of the support ring (251) in an annular shape, and the protrusions (259) cooperate with the elastic rods (258).

3. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 2, characterized in that: The two vibrating rods (252) on the front and rear sides are located inside the premixing zone and the transition zone, respectively. There are two spiral blades (256), and the two spiral blades (256) are coaxially arranged on the surface of the stirring shaft (254). The inner spiral blade (256) is welded to the surface of the stirring shaft (254), and the outer spiral blade (256) is connected to the stirring shaft (254) through a support rod. The two spiral blades (256) are arranged in opposite directions.

4. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 2, characterized in that: A support plate (4) is bolted between the tops of multiple cleaning tanks (2), and a protective shell (5) is bolted to the top of the support plate (4). The top of the drive shaft (257) extends into the interior of the protective shell (5). A synchronous pulley (6) is sleeved on the surface of the drive shaft (257). A synchronous belt (7) is meshed and wound between the interiors of multiple synchronous pulleys (6). The top of the front drive shaft (257) extends to the outside of the protective shell (5) and is connected to an external drive motor.

5. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 1, characterized in that: The dispersion structure (3) includes a dispersion tank (31), which is bolted to the front side of the top of the support base plate (1) and is connected to the front cleaning tank (2) through a pipe. The dispersion tank (31) is rotatably connected to a main shaft (32), and two bushings (33) are sleeved on the surface of the main shaft (32). A fixing rod is welded to the surface of the bushing (33) in an annular shape, and a stirring blade (34) is welded to the side of the fixing rod away from the bushing (33). The upper and lower stirring blades (34) are inclined in opposite directions. A turbulence assembly (35) is sleeved on the top and bottom of the surface of the main shaft (32). An intermittent feeding assembly (36) is provided at the bottom of the top turbulence assembly (35), and both the turbulence assembly (35) and the intermittent feeding assembly (36) are sleeved on the surface of the main shaft (32).

6. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 5, characterized in that: The turbulence-inducing assembly (35) includes a fixed ring (351), the surface of which is connected to the inner wall of the dispersion tank (31). A connecting ring (352) is disposed inside the fixed ring (351), and a collar (353) is disposed inside the connecting ring (352). The collar (353) is rotatably fitted onto the surface of the main shaft (32). An elastic mesh (354) is disposed between the connecting ring (352), the fixed ring (351), and the collar (353). The inside of the main shaft (32) is through a guide rod (355). The top of the connecting ring (352) is provided with a rotating ring (356), and the rotating ring (356) is fitted on the surface of the main shaft (32). The bottom of the rotating ring (356) is welded with several push blocks (357) in an annular shape. The push blocks (357) are used in conjunction with the guide rod (355). The surface of the rotating ring (356) is fitted with a connecting plate (358) and a spring (359), and the top of the spring (359) is connected to the connecting plate (358).

7. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 6, characterized in that: A support frame (8) is welded between the bottom of the collar (353) and the fixed ring (351). The bottom of the guide rod (355) passes through the interior of the support frame (8) and is slidably connected. The spring (359) is connected to both the connecting ring (352) and the support frame (8) on the side close to them respectively.

8. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 6, characterized in that: One side of the push block (357) is inclined, and the inclined direction of several push blocks (357) is consistent with the rotation direction of the main shaft (32). The top of the guide rod (355) is smooth curved.

9. The pretreatment structure for preparing a tungsten alloy compressed energy projectile core according to claim 5, characterized in that: The intermittent feeding assembly (36) includes a rotating disk (361) and a fixed disk (362). The fixed disk (362) is rotatably sleeved on the surface of the main shaft (32) through a bearing, and the surface of the fixed disk (362) is connected to the inner wall of the dispersion tank (31). The rotating disk (361) is fixedly sleeved on the surface of the main shaft (32), and the rotating disk (361) is located at the bottom of the fixed disk (362). The rotating disk (361) and the fixed disk (362) are in rotatable contact through a seal. The rotating disk (361) and the fixed disk (362) are both provided with feeding holes (363), and the two feeding holes (363) are used in conjunction. The top of the fixed disk (362) is rotatably contacted by a scraper (364), and the scraper (364) is bolted to the side of the main shaft (32) near it.

10. A method for preparing a pretreatment structure for tungsten alloy compressed energy projectile core as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. Add tungsten alloy powder to the dispersion tank (31), and the main shaft (32) drives the rotating disk (361) to rotate. Intermittent feeding is achieved by periodically aligning the rotating disk (361) with the feeding hole (363) of the fixed disk (362). The scraper (364) simultaneously cleans the residual powder on the surface of the fixed disk (362). S2. The main shaft (32) inside the dispersion tank (31) rotates, and the stirring blades (34) perform preliminary stirring on the falling powder; at the same time, the rotating ring (356) drives the push block (357) to push the guide rod (355), causing the connecting ring (352) to move up and down, and the elastic net (354) deforms to generate turbulence, further dispersing the powder and breaking up agglomeration; S3. The dispersed powder suspension enters the front cleaning tank (2), and after being initially dispersed by the vibrating rod (252) in the premixing zone, it enters the cleaning zone. The cleaning zone removes oxides from the powder surface by the agitation of the vibrating rod (252), the circulation stirring of the stirring shaft (254) and the spiral blade (256), combined with the local agitation of the elastic rod (258) and the protrusion (259). The cleaning liquid is added from the rear cleaning tank (2) and flows in the opposite direction through the overflow port to fully contact the powder. S4. After cleaning, the powder passes through the transition zone vibrating rod (252) to prevent sedimentation, and enters the next cleaning tank (2) through the flow notch (26) for repeated cleaning; the synchronous drive shaft (257) ensures that the stirring rhythm of each tank is consistent, and improves the multi-stage cleaning effect; S5. The powder that has been cleaned is discharged through the discharge port of each tank (21) and enters the subsequent pretreatment steps such as drying to complete the entire pretreatment process.

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