阅读说明：本技术 一种高活性铁基含能复合材料制备设备及工艺 (Preparation equipment and process of high-activity iron-based energetic composite material ) 是由 张蕾 韩早 于 2021-08-23 设计创作，主要内容包括：本发明涉及铁基复合材料制备技术领域,具体的说是一种高活性铁基含能复合材料制备设备及工艺；包括壳体、进料仓、空腔、一号打磨柱、打磨块和二号槽；当一号打磨柱进行转动时,一号打磨柱带动打磨块对滑块滑动进行挤压,滑块在通气孔内进行滑动,滑块滑动时,气体从通气孔内喷出,当气体从右侧的通气孔喷出时,气体对从一号滤网下方向上进行吹动,从而使气体对一号滤网上的滤孔进行疏通,进一步避免一号滤网进行堵塞；当气体左侧的通气孔内喷出时,气体对二号滤网进行吹动,从而使气体对二号滤网上的滤孔进行疏通,从而避免铁粉对二号滤网进行堵塞。(The invention relates to the technical field of iron-based composite material preparation, in particular to a high-activity iron-based energetic composite material preparation device and a process; the grinding device comprises a shell, a feeding bin, a cavity, a first grinding column, a grinding block and a second groove; when the first polishing column rotates, the first polishing column drives the polishing block to extrude the sliding block to slide, the sliding block slides in the vent hole, when the sliding block slides, gas is sprayed out of the vent hole, and when the gas is sprayed out of the vent hole on the right side, the gas blows from the direction below the first filter screen, so that the gas dredges the filter holes in the first filter screen, and the first filter screen is further prevented from being blocked; when the left venthole of gas spouts in, gas blows No. two filter screens to make gas dredge the filtration pore on No. two filter screens, thereby avoid the iron powder to block up No. two filter screens.)

1. A high-activity iron-based energetic composite material preparation device is characterized in that: the grinding machine comprises a shell (1) and a collecting unit (2), wherein the cross section of the upper end of the shell (1) is semicircular, a feeding bin (11) is arranged on the upper end face of the shell (1), a cylindrical cavity (12) is arranged inside the shell (1), the cavity (12) is positioned on the upper side of the shell (1), a grinding column (13) is rotatably connected inside the cavity (12), grinding blocks (14) are uniformly fixedly connected to the outer ring of the grinding column (13), the cross section of each grinding block (14) is composed of an arc surface a and an arc surface b, the arc surface a on each grinding block (14) is in contact with the inner wall of the cavity (12), the two ends of each grinding column (13) are rotatably connected to the front end face and the rear end face of the shell (1), a motor is fixedly connected to the rear end of the shell (1), an output shaft of the motor is fixedly connected with the grinding column (13), and a discharge channel (15) is formed inside the shell (1), discharging channel (15) is located under cavity (12), discharging channel (15) and cavity (12) intercommunication, a groove (151) is seted up to discharging channel (15) both sides, be provided with filter screen (16) in discharging channel (15), filter screen (16) are the metal material and have elasticity, the both ends sliding connection of filter screen (16) is in a groove (151), and the both ends of a filter screen (16) link firmly through elastic rope (161) and a groove (151) inner wall, the side that a filter screen (16) leaned on into a polishing post (13) has linked firmly lug (162), be provided with No. two polishing posts (17) in discharging channel (15), the both ends of No. two polishing posts (17) are connected with discharging channel (15) front and back inner wall rotation, No. one polishing post (13) and No. two polishing post (17) pass through the belt and are connected, discharge channel (15) interior No. two filter screens (171) that have linked firmly, No. two filter screens (171) are the semicircle form, and No. two filter screens (171) are located the below of No. two post (17) of polishing, and No. two filter screens (171) and No. two post (17) contacts of polishing.

2. The apparatus of claim 1, wherein the apparatus comprises: a second groove (141) is formed in the cambered surface a of the polishing block (14), and a rolling grinding column (142) is rotatably connected in the second groove (141) through a rotating shaft.

3. The apparatus for preparing a high-activity iron-based energetic composite material as set forth in claim 2, wherein: air vent (18) have evenly been seted up to casing (1) inside, sliding connection has slider (181) in air vent (18), slider (181) one side is provided with reset spring, air vent (18) are located the both sides of discharging channel (15), air vent (18) one end and cavity (12) intercommunication other end and discharging channel (15) intercommunication, the one end that discharging channel (15) were kept away from in slider (181) stretches out air vent (18) and is located cavity (12), and air vent (18) one end that is located discharging channel (15) is located between filter screen (16) and No. two filter screens (171).

4. The apparatus of claim 3, wherein the apparatus comprises: the opening direction of the vent holes (18) on the right side of the discharging channel (15) inclines towards the first filter screen (16), and the opening direction of the vent holes (18) on the left side of the discharging channel (15) inclines towards the second filter screen (171).

5. The apparatus of claim 4, wherein the apparatus comprises: the end opening of the vent hole (18) close to the discharging channel (15) is in a conical shape, and the aperture of the opening of the vent hole (18) is smaller than that of the middle part of the vent hole (18).

6. A preparation process of a high-activity iron-based energetic composite material is characterized by comprising the following steps: the process is suitable for the equipment for preparing the high-activity iron-based energetic composite material disclosed in the claims 1-5, and comprises the following steps:

s1: putting raw materials for producing iron powder into a cavity (12) in a shell (1) through a feeding bin (11), then starting a motor, driving a first grinding column (13) to rotate by the motor, driving a grinding block (14) to rotate by the first grinding column (13), enabling an arc surface a on the grinding block (14) to be in contact with the inner wall of the cavity (12), matching the arc surface a on the grinding block (14) with the inner wall of the cavity (12), and grinding iron blocks by the grinding block (14) and the inner wall of the cavity (12);

s2: when two adjacent grinding blocks (14) move right above the discharge channel (15), iron powder formed by grinding between the two adjacent grinding blocks (14) enters the discharge channel (15) through the first filter screen (16), the grinding blocks (14) extrude the bumps (162), the bumps (162) are extruded by the grinding blocks (14) to move towards the right side in the first groove (151), the bumps (162) move downwards under the extrusion, the first filter screen (16) is driven to vibrate by the movement of the bumps (162), and when the first filter screen (16) vibrates, the first filter screen (16) vibrates the iron powder above;

s3: iron powder after filter through filter screen (16) gets into in discharging channel (15), No. two post (17) of polishing in discharging channel (15) are connected with a post (13) of polishing through the belt, when a post (13) of polishing rotates, No. two post (17) of polishing rotate along with a post (13) of polishing, when No. two post (17) of polishing rotate, No. two post (17) outer lane of polishing rubs with No. two filter screen (171), thereby further grind the iron powder, the iron powder after grinding afterwards drops in through discharging channel (15), the iron powder drops in collection unit (2) afterwards.

Technical Field

The invention relates to the technical field of preparation of iron-based composite materials, in particular to a device and a process for preparing a high-activity iron-based energetic composite material.

Background

The hardness, compactness and bonding strength of the spray coating of the iron-based alloy powder are equal to those of the nickel-based alloy powder coating, so that the nickel-based alloy powder can be replaced on many occasions, but the toughness of the coating is lower than that of the nickel-based alloy powder coating; the iron-based alloy powder coating has good wear resistance, and iron-based powder needs to pass through the process of grinding into powder when producing, and often meets ejection of compact granule variation in size at the grinding in-process to and the problem that the filter unit that the discharge gate filtered the iron powder appears blockking up.

A patent related to a preparation device and a process of a high-activity iron-based energetic composite material also appears in the prior art, and for example, a chinese patent with application number CN2014103576465 discloses an iron powder production process, which comprises the following steps: 1. mixing iron ore, internal carbon and catalyst to obtain a round iron column; carrying out first reduction on the round iron column to obtain sponge iron; 2. carrying out wet grinding and sorting on the sponge iron to obtain first iron powder; 3. then carrying out secondary reduction to obtain secondary iron powder; and crushing and screening to obtain the finished product.

The iron powder produced by the application process step in the prior art has high-quality chemical properties, good compressibility and formability, and is a high-quality raw material for preparing high-end powder metallurgy parts; however, when the iron powder in the prior art is generated, the equipment which needs to grind the iron powder through multiple channels is used for grinding the iron powder, and the grinding equipment in the prior art is used for grinding the iron powder, and because the particle size of the iron powder needs to be ensured, the filtering unit needs to be arranged in the equipment.

In view of the above, the invention provides a device and a process for preparing a high-activity iron-based energetic composite material, which solve the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the problem that in the prior art, when grinding equipment in the prior art is used for grinding, a filtering unit needs to be arranged in the equipment because the particle size of iron powder needs to be ensured, but when the equipment is used for a long time, larger particles are blocked in the filtering unit due to different particles of the iron powder, so that the discharging efficiency of the filtering unit is poor is solved; the invention provides a preparation device and a preparation process of a high-activity iron-based energetic composite material.

The technical scheme adopted by the invention for solving the technical problems is as follows: a high-activity iron-based energetic composite material preparation device comprises a shell and a collection unit, wherein the section of the upper end of the shell is semicircular, a cylindrical cavity is formed in the shell, a feeding bin is arranged on the upper end face of the shell, the cavity is positioned on the upper side of the shell, a first polishing column is rotatably connected in the cavity, a polishing block is uniformly and fixedly connected to the outer ring of the first polishing column, the section of the polishing block is composed of an arc surface a and an arc surface b, the arc surface a on the polishing block is contacted with the inner wall of the cavity, the two ends of the first polishing column are rotatably connected to the front end face and the rear end face of the shell, a motor is fixedly connected to the rear end of the shell, an output shaft of the motor is fixedly connected with the first polishing column, a discharge channel is formed in the shell and is positioned under the cavity and communicated with the cavity, grooves are formed in the two sides of the discharge channel, the filter screen assembly is characterized in that a first filter screen is arranged in the discharge channel, the first filter screen is made of metal and has elasticity, two ends of the first filter screen are slidably connected in a first groove, two ends of the first filter screen are fixedly connected with the inner wall of the first groove through elastic ropes, a protruding block is fixedly connected to the side face, close to the first polishing column, of the first filter screen, a second polishing column is arranged in the discharge channel, two ends of the second polishing column are rotatably connected with the front inner wall and the rear inner wall of the discharge channel, the first polishing column is connected with the second polishing column through a belt, a second filter screen is fixedly connected in the discharge channel, the second filter screen is semicircular and is located below the second polishing column, and the second filter screen is in contact with the second polishing column;

when the grinding device is used, raw materials for grinding iron powder enter the cavity inside the shell through the feeding bin, then the motor is started to rotate, the motor drives the first grinding column to rotate, the first grinding column drives the grinding blocks to rotate, when the grinding blocks rotate, the cambered surfaces a on the grinding blocks are contacted with the inner wall of the cavity, when the grinding blocks rotate, the cambered surfaces a on the grinding blocks are matched with the inner wall of the cavity, the grinding blocks and the inner wall of the cavity grind the iron blocks, when two adjacent grinding blocks move right above the discharge channel, the iron powder formed by grinding between the two adjacent grinding blocks enters the discharge channel through the first filter screen, when the grinding blocks rotate, the grinding blocks extrude the convex blocks, and when the convex blocks are extruded by the grinding blocks to move towards the right side in the first groove, the convex blocks are extruded to move downwards, a filter screen resets by the effect of an inslot elasticity rope afterwards, the lug motion drives a filter screen and shakes, when a filter screen shakes, a filter screen shakes the iron powder of top, thereby avoid the iron powder to block up a filter screen, iron powder after filtering through a filter screen gets into discharging channel in, No. two polishing post in the discharging channel pass through the belt and are connected with a polishing post, when a polishing post rotates, No. two polishing post rotate along with a polishing post, because the cross-section of No. two filter screens is the semicircle ring-type, when making No. two polishing post rotate, No. two polishing post outer lane rubs with No. two filter screens, thereby further grind the iron powder, the iron powder after the grinding drops in through discharging channel afterwards, drop in the collection unit afterwards.

Preferably, a second groove is formed in the cambered surface a of the polishing block, and a rolling grinding column is rotatably connected in the second groove through a rotating shaft;

during the use, the motor rotates, the motor drives a post of polishing and rotates, a post of polishing drives the piece of polishing and rotates, the last roll post of polishing and the contact of cavity inner wall of polishing on the piece, when a post of polishing rotates, the roll post of polishing is polished the iron plate when rotating, make the iron plate polish into the iron powder, the iron powder after the roll post of polishing rotates along with a post of polishing, cambered surface a on the messenger's piece of polishing carries out the regrinding to the iron powder, thereby the grinding granularity that makes the iron powder is even, thereby the quality of finished product iron powder has been improved.

Preferably, vent holes are uniformly formed in the shell, a sliding block is connected in the vent holes in a sliding mode, a reset spring is arranged on one side of the sliding block, the vent holes are located on two sides of the discharging channel, one end of each vent hole is communicated with the cavity, the other end of each vent hole is communicated with the discharging channel, one end, far away from the discharging channel, of the sliding block extends out of the vent holes and is located in the cavity, and one end, located between the first filter screen and the second filter screen, of each vent hole is located between the first filter screen and the second filter screen;

during the use, when the motor rotates, the motor drives a post of polishing and rotates, a post of polishing drives the piece of polishing and rotates, the piece of polishing rotates, the inner wall that the piece of polishing is pasting the cavity slides, cambered surface a on the piece of polishing extrudees the slider, the slider is extruded and is slided in the venthole, reset spring realizes that the slider resets, the slider slides in the venthole, gas in the venthole is extruded, gaseous from the venthole that is located discharging channel flows, gaseous from discharging channel flows, when gaseous in-process that flows, gaseous filtration pore to on a filter screen and No. two filter screens is dredged, thereby avoid the problem that a filter screen and No. two filter screens appear blockking.

Preferably, the opening direction of the vent hole positioned on the right side of the discharging channel inclines towards the first filter screen, and the opening of the vent hole positioned on the left side of the discharging channel inclines towards the second filter screen;

when the polishing device is used, the opening direction of the vent hole positioned on the right side of the discharge channel is inclined towards the first filter screen, the opening of the vent hole positioned on the left side of the discharge channel is inclined towards the second filter screen, when the first polishing column rotates, the first polishing column drives the polishing block to extrude the sliding block in a sliding manner, the sliding block slides in the vent hole, when the sliding block slides, gas is sprayed out of the vent hole, when the gas is sprayed out of the vent hole on the right side, the gas blows in the direction from the lower part of the first filter screen, so that the gas dredges the filter hole on the first filter screen, and the blockage of the first filter screen is further avoided; when gas is sprayed out from the left vent hole, the gas blows the second filter screen, so that the filter holes in the second filter screen are dredged by the gas, and the iron powder is prevented from blocking the second filter screen.

Preferably, an opening at one end of the vent hole, which is close to the discharge channel, is in a conical shape, and the aperture at the opening of the vent hole is smaller than that in the middle of the vent hole;

during the use, be the setting of taper type through the one end opening that makes the air vent be close to discharging channel, the aperture that makes the air vent opening part is less than the aperture at air vent middle part, when the post of polishing rotates for one number, the post of polishing drives the piece of polishing and extrudees the slider, make the slider slide in the air vent, the slider extrudees the gas in the air vent, make gaseous blowout from the air vent, and be the setting of taper type through the opening that makes the air vent, according to the narrow tube effect, when making gaseous blowout from the air vent, gaseous velocity of flow and atmospheric pressure increase, thereby make gaseous mediation efficiency increase to a filter screen and No. two filter screens.

A preparation process of a high-activity iron-based energetic composite material is suitable for the preparation equipment of the high-activity iron-based energetic composite material, and comprises the following steps:

s1: putting raw materials for producing iron powder into a cavity in a shell through a feeding bin, then starting a motor, driving a first polishing column to rotate by the motor, driving a polishing block to rotate by the first polishing column, enabling an arc surface a on the polishing block to be in contact with the inner wall of the cavity, matching the arc surface a on the polishing block with the inner wall of the cavity, and grinding iron blocks by the polishing block and the inner wall of the cavity;

s2: when two adjacent grinding blocks move right above the discharge channel, iron powder formed by grinding between the two adjacent grinding blocks enters the discharge channel through a first filter screen, the grinding blocks extrude the convex blocks, the convex blocks are extruded by the grinding blocks to move towards the right side in the first groove, the convex blocks are extruded to move downwards, the convex blocks move to drive the first filter screen to vibrate, and when the first filter screen vibrates, the first filter screen vibrates the iron powder above;

s3: in the iron powder entering discharging channel after filter screen filters, No. two polishing posts in the discharging channel are connected with a polishing post through the belt, when a polishing post rotates, No. two polishing posts rotate along with a polishing post, when No. two polishing posts rotate, No. two polishing post outer rings rub with No. two filter screens, thereby further grinding the iron powder, the iron powder after grinding drops in passing through discharging channel afterwards, the iron powder drops in the collection unit afterwards.

The invention has the following beneficial effects:

1. the invention relates to a high-activity iron-based energetic composite material preparation device and a process, wherein a grinding block, a second groove and a rolling grinding column are arranged; the motor drives a post of polishing and rotates, a post of polishing drives the piece of polishing and rotates, the last roll post of polishing and the contact of cavity inner wall of polishing, when a post of polishing rotates, the roll post of polishing is polished to the iron plate when rotating, make the iron plate polish into the iron powder, the iron powder after the post of polishing is ground along with a post of polishing rotates, cambered surface an on the messenger polishing piece carries out the regrinding to the iron powder, thereby the grinding granularity that makes the iron powder is even, thereby the quality of finished product iron powder has been improved.

2. The invention relates to a preparation device and a preparation process of a high-activity iron-based energetic composite material, which are characterized in that a vent hole, a slide block, a reset spring, a discharge channel, a first filter screen and a second filter screen are arranged; when the first polishing column rotates, the first polishing column drives the polishing block to extrude the sliding block to slide, the sliding block slides in the vent hole, when the sliding block slides, gas is sprayed out of the vent hole, and when the gas is sprayed out of the vent hole on the right side, the gas blows from the direction below the first filter screen, so that the gas dredges the filter holes in the first filter screen, and the first filter screen is further prevented from being blocked; when gas is sprayed out from the left vent hole, the gas blows the second filter screen, so that the filter holes in the second filter screen are dredged by the gas, and the iron powder is prevented from blocking the second filter screen.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a process flow diagram of the present invention;

FIG. 2 is a perspective view of an apparatus for preparing the high activity iron-based energetic composite material according to the present invention;

FIG. 3 is a cross-sectional view of the present invention;

FIG. 4 is an enlarged view of a portion of FIG. 3 at A;

FIG. 5 is a structural view of the sanding block of FIG. 3;

in the figure: the grinding device comprises a shell 1, a feeding bin 11, a cavity 12, a first grinding column 13, a grinding block 14, a second groove 141, a rolling grinding column 142, a discharging channel 15, a first groove 151, a first filter screen 16, an elastic rope 161, a bump 162, a second grinding column 17, a second filter screen 171, a vent hole 18, a sliding block 181 and a collecting unit 2.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, a high-activity iron-based energetic composite material preparation device comprises a shell 1 and a collection unit 2, wherein the cross section of the upper end of the shell 1 is semicircular, a cylindrical cavity 12 is arranged inside the shell 1, a feeding bin 11 is arranged on the upper end surface of the shell 1, the cavity 12 is positioned on the upper side of the shell 1, a first polishing column 13 is rotatably connected inside the cavity 12, the outer ring of the first polishing column 13 is uniformly and fixedly connected with a polishing block 14, the cross section of the polishing block 14 is composed of an arc surface a and an arc surface b, the arc surface a on the polishing block 14 is contacted with the inner wall of the cavity 12, two ends of the first polishing column 13 are rotatably connected with the front end surface and the rear end surface of the shell 1, the rear end of the shell 1 is fixedly connected with a motor, the output shaft of the motor is fixedly connected with the first polishing column 13, a discharge channel 15 is arranged inside the shell 1, the discharge channel 15 is positioned under the cavity 12, the discharge channel 15 is communicated with the cavity 12, a first groove 151 is arranged on two sides of the discharge channel 15, a first filter screen 16 is arranged in the discharge channel 15, the first filter screen 16 is made of metal and has elasticity, two ends of the first filter screen 16 are connected in the first groove 151 in a sliding manner, and both ends of the first filter screen 16 are fixedly connected with the inner wall of the first groove 151 through elastic ropes 161, the side surface of the first filter screen 16 close to the first polishing column 13 is fixedly connected with a convex block 162, a second polishing column 17 is arranged in the discharge channel 15, two ends of the second polishing column 17 are rotatably connected with the front inner wall and the rear inner wall of the discharge channel 15, the first polishing column 13 is connected with the second polishing column 17 through a belt, a second filter screen 171 is fixedly connected in the discharge channel 15, the second filter screen 171 is semicircular, the second filter screen 171 is positioned below the second polishing column 17, and the second filter screen 171 is in contact with the second polishing column 17;

when the grinding machine is used, raw materials for grinding iron powder enter the cavity 12 in the shell 1 through the feeding bin 11, then the motor is started to rotate, the motor drives the first grinding column 13 to rotate, the first grinding column 13 drives the grinding blocks 14 to rotate, when the grinding blocks 14 rotate, the cambered surfaces a of the grinding blocks 14 are in contact with the inner wall of the cavity 12, when the grinding blocks 14 rotate, the cambered surfaces a of the grinding blocks 14 are matched with the inner wall of the cavity 12, the grinding blocks 14 and the inner wall of the cavity 12 grind iron blocks, when two adjacent grinding blocks 14 move to the position right above the discharge channel 15, the iron powder formed by grinding between the two adjacent grinding blocks 14 enters the discharge channel 15 through the first filter screen 16, and when the grinding blocks 14 rotate, the grinding blocks 14 extrude the lug 162, the lug 162 is extruded by the grinding blocks 14, and the lug 162 moves to the right side in the first groove 151, the lug 162 is extruded to move downwards, then the first filter screen 16 is reset under the action of the elastic rope 161 in the first groove 151, the lug 162 moves to drive the first filter screen 16 to vibrate, when the first filter screen 16 vibrates, the first filter screen 16 vibrates iron powder above, so that the iron powder is prevented from blocking the first filter screen 16, the iron powder filtered by the first filter screen 16 enters the discharge passage 15, the second grinding column 17 in the discharge passage 15 is connected with the first grinding column 13 through a belt, when the first grinding column 13 rotates, the second grinding column 17 rotates along with the first grinding column 13, because the cross section of the second filter screen 171 is semicircular, when the second grinding column 17 rotates, the outer ring of the second grinding column 17 is rubbed with the second filter screen 171, so that the iron powder is further ground, and then the ground iron powder drops through the discharge passage 15, the iron powder then falls into the collection unit 2.

As a specific embodiment of the present invention, a second groove 141 is formed on the arc surface a of the polishing block 14, and a rolling grinding column 142 is rotatably connected in the second groove 141 through a rotating shaft;

during the use, the motor rotates, the motor drives a post of polishing 13 and rotates, a post of polishing 13 drives the piece of polishing 14 and rotates, the last roll post of polishing 14 and the contact of cavity 12 inner wall, when a post of polishing 13 rotates, roll post of polishing 142 when roll post of polishing 142 rotates and polish the iron plate, make the iron plate polish into the iron powder, the iron powder after rolling post of polishing 142 rotates along with a post of polishing 13, cambered surface an on the piece of polishing 14 carries out the secondary grinding to the iron powder, thereby the grinding granularity that makes the iron powder is even, thereby the quality of finished product iron powder has been improved.

As a specific embodiment of the present invention, vent holes 18 are uniformly formed in the housing 1, a slider 181 is slidably connected in the vent hole 18, a return spring is disposed on one side of the slider 181, the vent holes 18 are located on two sides of the discharging channel 15, one end of the vent hole 18 is communicated with the cavity 12, and the other end is communicated with the discharging channel 15, one end of the slider 181 far away from the discharging channel 15 extends out of the vent hole 18 and is located in the cavity 12, and one end of the vent hole 18 located in the discharging channel 15 is located between the first filter screen 16 and the second filter screen 171;

during the use, when the motor rotates, the motor drives a polishing post 13 and rotates, polishing post 13 drives polishing block 14 and rotates, polishing block 14 slides along the inner wall of cavity 12, cambered surface a on polishing block 14 extrudes slider 181, slider 181 is extruded and is slided in vent 18, reset spring realizes that slider 181 resets, when slider 181 slides in vent 18, the gas in vent 18 is extruded, gas flows out from vent 18 that is located discharging channel 15, gas flows out from discharging channel 15, when the in-process of gas outflow, gas dredges the filtration pore on No. one filter screen 16 and No. two filter screens 171, thereby avoid filter screen No. one filter screen 16 and No. two filter screens 171 to appear the problem of jam.

As a specific embodiment of the present invention, the opening direction of the vent hole 18 on the right side of the discharging channel 15 is inclined toward the No. one filter screen 16, and the opening direction of the vent hole 18 on the left side of the discharging channel 15 is inclined toward the No. two filter screen 171;

when the polishing device is used, the opening direction of the vent hole 18 on the right side of the discharge channel 15 is inclined towards the first filter screen 16, the opening of the vent hole 18 on the left side of the discharge channel 15 is inclined towards the second filter screen 171, when the first polishing column 13 rotates, the first polishing column 13 drives the polishing block 14 to extrude the sliding block 181 in a sliding mode, the sliding block 181 slides in the vent hole 18, when the sliding block 181 slides, gas is sprayed out of the vent hole 18, when the gas is sprayed out of the vent hole 18 on the right side, the gas blows the upward direction from the lower side of the first filter screen 16, so that the gas dredges the filter holes in the first filter screen 16, and the blockage of the first filter screen 16 is further avoided; when the gas is ejected from the left vent hole 18, the gas blows the second filter screen 171, so that the gas dredges the filter holes in the second filter screen 171, and the iron powder is prevented from blocking the second filter screen 171.

As a specific embodiment of the present invention, an opening of the vent hole 18 near the discharge channel 15 is in a conical shape, and the aperture at the opening of the vent hole 18 is smaller than the aperture at the middle of the vent hole 18;

during the use, be the setting of taper type through making vent 18 be close to discharge channel 15's one end opening, make the aperture of vent 18 opening part be less than the aperture at vent 18 middle part, when polishing post 13 and rotate, polishing post 13 drives and polishes block 14 and extrudees slider 181, make slider 181 slide in vent 18, slider 181 extrudees the gas in vent 18, make gas spout from vent 18, and through making vent 18's opening be the setting of taper type, according to the throat effect, when making gas spout from vent 18, gaseous velocity of flow and atmospheric pressure increase, thereby make gaseous mediation efficiency increase to filter screen 16 and No. two filter screens 171.

A preparation process of a high-activity iron-based energetic composite material is suitable for the preparation equipment of the high-activity iron-based energetic composite material, and comprises the following steps:

s1: putting raw materials for producing iron powder into a cavity 12 in a shell 1 through a feeding bin 11, then starting a motor, driving a first grinding column 13 to rotate by the motor, driving a grinding block 14 to rotate by the first grinding column 13, enabling an arc surface a on the grinding block 14 to be in contact with the inner wall of the cavity 12, matching the arc surface a on the grinding block 14 with the inner wall of the cavity 12, and grinding iron blocks by the grinding block 14 and the inner wall of the cavity 12;

s2: when two adjacent grinding blocks 14 move right above the discharge channel 15, iron powder formed by grinding between the two adjacent grinding blocks 14 enters the discharge channel 15 through the first filter screen 16, the grinding blocks 14 extrude the bumps 162, the bumps 162 are extruded by the grinding blocks 14 to move towards the right side in the first groove 151, the bumps 162 are extruded to move downwards, the bumps 162 move to drive the first filter screen 16 to vibrate, and when the first filter screen 16 vibrates, the first filter screen 16 vibrates the iron powder above;

s3: iron powder after 16 filters of filter screen gets into in discharging channel 15, No. two polishing post 17 in discharging channel 15 are connected with a polishing post 13 through the belt, when a polishing post 13 rotates, No. two polishing post 17 rotates along with a polishing post 13, when No. two polishing post 17 rotates, No. two polishing post 17 outer lane rubs with No. two filter screens 171, thereby further grind the iron powder, the iron powder after grinding drops in discharging channel 15 afterwards, the iron powder drops in collecting unit 2 afterwards.

The specific working process is as follows:

raw materials for grinding iron powder enter a cavity 12 in a shell 1 through a feeding bin 11, then a motor is started to rotate, the motor drives a grinding column 13 to rotate, the grinding column 13 drives a grinding block 14 to rotate, when the grinding block 14 rotates, an arc surface a on the grinding block 14 is contacted with the inner wall of the cavity 12, when the grinding block 14 rotates, the arc surface a on the grinding block 14 is matched with the inner wall of the cavity 12, the grinding block 14 and the inner wall of the cavity 12 grind iron blocks, when two adjacent grinding blocks 14 move to the position right above a discharge channel 15, the iron powder formed by grinding between the two adjacent grinding blocks 14 enters the discharge channel 15 through a filter screen 16, when the grinding block 14 rotates, the grinding block 14 extrudes a bump 162, the bump 162 is extruded by the grinding block 14 and moves to the right side in a groove 151, the projection 162 is pressed to move downwards, then the first filter screen 16 is reset under the action of the elastic rope 161 in the first groove 151, the projection 162 moves to drive the first filter screen 16 to vibrate, when the first filter screen 16 vibrates, the first filter screen 16 vibrates the iron powder above, the iron powder filtered by the first filter screen 16 enters the discharge channel 15, the second polishing column 17 in the discharge channel 15 is connected with the first polishing column 13 through a belt, when the first polishing column 13 rotates, the second polishing column 17 rotates along with the first polishing column 13, because the section of the second filter screen 171 is semicircular, when the second polishing column 17 rotates, the outer ring of the second polishing column 17 rubs against the second filter screen 171, thereby further grinding the iron powder, the iron powder after grinding subsequently drops through in discharging channel 15, and the iron powder subsequently drops to in collecting unit 2.

The front, the back, the left, the right, the upper and the lower are all based on the figure 2 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.