CN117583060A

CN117583060A - Sand powder roller mill for efficiently preparing waste concrete reclaimed sand powder

Info

Publication number: CN117583060A
Application number: CN202311660446.2A
Authority: CN
Inventors: 周朱烨; 李小虎; 朱明峰
Original assignee: Changshu Tianhe Concrete Co ltd
Current assignee: Changshu Tianhe Concrete Co ltd
Priority date: 2023-12-06
Filing date: 2023-12-06
Publication date: 2024-02-23

Abstract

The invention relates to the technical field of recycling of building solid waste, and discloses a sand powder roller mill for efficiently preparing recycled sand powder of waste concrete. This sand roller mill is used in high-efficient preparation of waste concrete reclaimed sand powder, intermesh through two sets of broken tooth and carry out crushing treatment and form sand grain to waste concrete, the grinding roller is used to carry out crushing grinding operation to the sand grain of grinding seat top to grind it to the sand powder, realize grinding to the inside more tiny tissue of sand grain simultaneously, make sand grain ground more abundant, more even, further promote the production quality to sand powder, and can reach the efficiency of sand making and pulverizing simultaneously through this setting.

Description

Sand powder roller mill for efficiently preparing waste concrete reclaimed sand powder

Technical Field

The invention belongs to the technical field of recycling of building solid waste, and particularly relates to a sand powder roller mill for efficiently preparing waste concrete reclaimed sand powder.

Background

The recycling of the waste concrete is actively promoted in China, and certain effect is achieved, but the recycling of the waste concrete is focused on the recycled aggregate in the past, the technology and equipment for crushing, screening and processing the coarse aggregate and the fine aggregate of the waste concrete are mature, and the recycled sand powder is mainly used for roadbed backfilling, filling materials, concrete bricks, building blocks and the like, is simple and extensive, and is essentially a resource waste.

In the prior art, in the recycling process of the recycled sand powder of the waste concrete, two modes of sand making or powder making of the waste concrete are adopted, qualified sandy and powdery materials are obtained for further use, and a crusher and a grinder are respectively adopted for processing, so that two sets of processing equipment are needed, each set of equipment can only singly make sand or independently make powder and cannot be simultaneously prepared, the application range is narrow, and when the waste concrete is crushed and ground, the waste concrete cannot be repeatedly crushed and ground in the equipment, so that the sizes and shapes of the materials are inconsistent easily, the waste concrete is not crushed sufficiently, the discharged materials still contain larger particles, the production quality of the sand powder is reduced, and the product benefit is reduced; therefore, the existing roller mill has the defects, and cannot meet the production and use requirements of factories, so that further improvement is needed.

Accordingly, the present invention has been made in view of the above problems, and an object of the present invention is to provide a sand mill for efficiently producing reclaimed sand powder of waste concrete, which has a high practical value.

Disclosure of Invention

In order to solve the technical problems, the invention provides a sand powder roller mill for efficiently preparing waste concrete reclaimed sand powder, which is realized by the following specific technical means:

the sand powder roller mill for efficiently preparing the reclaimed sand powder of the waste concrete comprises a machine base, wherein a fixing shell is fixedly arranged on the machine base, a processing shell is fixedly arranged on the upper side of the fixing shell, a feeding hopper for feeding the waste concrete is fixedly arranged on the upper side of the processing shell, a discharging hopper for discharging the sand powder is fixedly arranged at the bottom of the fixing shell, a fixing plate is fixedly arranged on the left side of the processing shell, the upper side of the fixing plate is fixedly arranged with a first driving motor through a mounting plate, the right side of the first driving motor is movably connected with a gear set through a movable shaft, one end of the movable shaft, which is far away from the first driving motor, extends to the inside of the processing shell and is connected with crushing teeth, the gear set and the crushing teeth are respectively provided with two groups, and the crushing teeth are driven by the movable shaft to crush the waste concrete;

the concrete crushing machine is characterized in that a crushing screen plate for carrying out preliminary filtration on crushed concrete is arranged right below the crushing teeth, a fixing seat is fixedly arranged on the inner wall of the fixing shell and positioned below the crushing screen plate, a vibration assembly is arranged between the upper side of the fixing seat and the crushing screen plate, and the crushing screen plate is enabled to generate vibration frequency through the vibration assembly and filter the crushed concrete.

Further, a scraping plate is fixedly arranged on the inner wall of the processing shell, the scraping plate is used for scraping concrete on two sides of the crushing teeth, and the scraping plate and the teeth of the crushing teeth are arranged in a mutually crossed mode;

the periphery of loose axle just is located the both sides of broken tooth and is provided with the carousel, the periphery of carousel is fixed to be provided with a plurality of evenly distributed's plexor, drives the plexor through the loose axle rotation and beats broken sieve and make broken sieve produce vibration frequency.

Through adopting above-mentioned structure, beat broken sieve through pivoted knocking piece, beat broken sieve along with knocking piece constantly, utilize the vibrations pole to drive the vibrations board and extrude the elastic layer to under the elasticity effect of elastic layer, make broken sieve produce vibrations frequency and shake constantly from top to bottom, be favorable to the penetration of sand grain.

Further, the vibration component comprises an elastic layer, a vibration plate and a vibration rod;

the vibrating plate is characterized in that the elastic layer is located right above the fixing seat, a vibrating plate is fixedly arranged on the upper side of the elastic layer, a plurality of uniformly distributed vibrating rods are fixedly arranged on the upper side of the vibrating plate, and the upper ends of the vibrating rods are fixedly connected with the bottom of the crushing screen plate.

Through adopting above-mentioned structure, through mutually supporting between elastic layer, vibrations board and the vibrations pole for the broken sieve produces vibrations frequency from top to bottom and constantly shakes, and the vibrations effect of broken sieve can shake the broken sand grain of piling up in broken sieve top and filter, reduces its possibility of piling up the jam, is favorable to the broken sieve to filter broken sand grain after the breakage.

Further, a grinding seat is fixedly arranged inside the fixed shell and between the fixed seats, a grinding roller for grinding the crushed concrete is arranged right above the grinding seat, and a plurality of grinding teeth for grinding the concrete are fixedly arranged on the outer side of the grinding roller;

the grinding seat is provided with a plurality of uniformly distributed grinding holes, the size of each grinding hole is larger than that of each grinding tooth, and the grinding teeth and the grinding holes of the grinding seat are combined with each other through movement of the grinding roller to realize concrete grinding operation.

Through adopting above-mentioned structure, through the in-process that the grinding roller is moving, the grinding tooth alternates in the grinding hole of grinding the seat, utilizes the cooperation effect of grinding roller and grinding the seat to carry out the furthest to the sand grain and grind it to the sand powder, realizes grinding to the inside more tiny tissue of sand grain simultaneously and smashes, makes the sand grain grind ground more abundant.

Further, the fixing base is provided with a groove towards one side of the grinding roller, a driving sliding rod is arranged in the groove, a driving sliding block is slidably mounted on the driving sliding rod, one side of the driving sliding block, towards the grinding roller, is movably connected with the grinding roller through a rotating shaft, and the driving sliding block slides on the driving sliding rod and drives the grinding roller to move to grind concrete.

Through adopting above-mentioned structure, slide on the drive slide bar through the drive slider, utilize the rotation to drive the grinding roller and remove in step, make the grinding roller roll in the top of grinding the seat to smash the grinding operation to the grit of grinding the seat top.

Further, the inside of fixed shell just is located the below of grinding the seat and is provided with screening board, fixed mounting has the mount on the inner wall of fixed shell, the mount is located screening board's top, the inner wall of mount utilizes support and dispersion impeller looks fixed connection, the dispersion impeller is located the grinding seat under, through the dispersion impeller carries out dispersion treatment to the concrete sand powder after grinding the seat.

Through adopting above-mentioned structure, can play the dispersion through utilizing the dispersion impeller to the sand powder of whereabouts for the sand powder of whereabouts evenly disperses in the top of screening board, can effectively avoid sand powder to pile up together and cause the possibility of jam through this setting.

Further, the downside of dispersion dish is seted up flutedly, and the inside of recess is fixed to be provided with driving motor two, driving motor two's downside rotates and is connected with initiative ratchet, the downside of dispersion dish is provided with driven component and screening subassembly, and driven component is located between dispersion dish and the screening subassembly.

Through adopting above-mentioned structure, through the control start driving motor two of procedure, utilize driving motor two's output drive initiative ratchet to rotate to utilize driven component's transmission can drive screening subassembly and move.

Further, the driven assembly comprises a rotating rod, a driven ratchet wheel and a swinging block;

the rotating rod is arranged right below the second driving motor, a driven ratchet wheel meshed with the driving ratchet wheel is fixedly arranged on the rotating rod, a plurality of swing blocks which are uniformly distributed are arranged on the rotating rod, and the plurality of swing blocks are arranged in different directions.

Through adopting above-mentioned structure, utilize the meshing effect of initiative ratchet and driven ratchet to make the dwang drive the swing piece and carry out synchronous rotation, realize the rotation of swing piece.

Further, the screening assembly comprises a screening frame, a vibrating spring, a screening cutter head and a fixing piece;

the screening frame is located the dwang under, the upside of screening frame is through vibrating spring and dispersion disc's bottom looks fixed connection, the fixed screening tool bit that carries out screening grinding to concrete sand powder and the mounting that promotes the screening board that is provided with in screening frame's bottom, promotes the screening board through the mounting and makes the screening board produce vibration frequency.

Through adopting above-mentioned structure, strike the screening frame through pivoted swinging block, make screening frame produce decurrent effort to utilize screening tool bit to carry out further crushing operation to the sand powder, utilize the mounting to promote the screening board simultaneously, make the screening board produce the vibrations frequency from top to bottom, be favorable to the screening effect to the sand powder.

Further, an inclined block is fixedly arranged on the inner wall of the fixed shell and is positioned above the screening plate, two grooves are formed in one side, facing the screening plate, of the inclined block, an elastic pad is arranged in the groove close to one side of the inner wall of the fixed shell, and the bottom of the elastic pad is elastically connected with the screening plate;

the concrete sand powder screening device comprises a screening plate, wherein a limiting plate is arranged in another groove on one side of the screening plate, the upper side of the limiting plate is elastically connected with the top wall of the groove through a limiting spring, and the limiting plate is used for limiting concrete sand powder.

Through adopting above-mentioned structure, promote limiting plate and make the bottom of limiting plate laminate with screening board all the time and contact mutually through spacing spring, can effectively avoid screening board to remove to between screening board and the slope piece at the in-process sand powder of vibrations from top to bottom through this setting, further promote its practicality.

Compared with the prior art, the invention provides the sand powder roller mill for efficiently preparing the waste concrete reclaimed sand powder, which has the following beneficial effects:

1. this sand roller mill is used in high-efficient preparation of waste concrete reclaimed sand powder, the device is through two sets of broken tooth intermeshed and carry out crushing treatment and form sand grain to waste concrete, the grinding roller is utilized to carry out crushing grinding operation to the sand grain of grinding seat top, the grinding tooth alternates and carries out furthest's grinding treatment to the sand grain in grinding the lapping hole of grinding the seat, and grind it to the sand powder, realize grinding to the inside more tiny tissue of sand grain simultaneously, make the sand grain grind ground more abundant, more even, further promote the production quality to the sand powder, and can reach the efficiency of sand making and pulverizing simultaneously through this setting.

2. This sand pulverizing roller mill is used in high-efficient preparation of waste concrete reclaimed sand powder, the device is knocked the broken sieve through pivoted knocking piece, and under the elasticity effect of elastic layer, the broken sieve produces vibrations frequency about and constantly shakes, along with the vibrations effect of broken sieve can shake the broken sand grain of piling up in broken sieve top on the one hand and filter, reduce its possibility of piling up the jam, be favorable to broken sieve to filtering the sand grain after the breakage, on the other hand, resilience force when the accessible broken sieve shakes is to the resilience of the great sand grain of top, and utilize broken tooth to carry out the breakage again to the sand grain that rebounds, so make the great granule of granule just can fall again between broken tooth on and realize secondary breakage, can be at the inside repeated broken of device through this setting to the not abundant sand grain of breakage, and then guarantee the homogeneity of discharged sand grain.

3. This sand roller mill for high-efficient preparation of waste concrete reclaimed sand powder, the setting that the device set up through the dispersion impeller makes the sand powder that drops down contact with the dispersion impeller earlier, utilizes the dispersion impeller to play the dispersion effect to the sand powder of whereabouts for the sand powder of whereabouts evenly disperses in the top of screening board, can effectively avoid sand powder to pile up together and cause the possibility of jam through this setting.

4. This sand roller mill is used in high-efficient preparation of waste concrete reclaimed sand powder, the device promotes the screening board through the mounting, and under the elasticity effect of elastic pad, make the screening board produce vibrations frequency from top to bottom, and because set up the swing piece to be different directions, when making the swing piece promote a plurality of screening frame, a plurality of screening frame is different motion state, and then make the screening board can keep high vibration frequency, and through this setting can effectually avoid smashing the phenomenon that the broken sediment flies in-process of grinding appears to the sand powder, also guaranteed the screening efficiency to the sand powder, avoided the sand powder to pile up simultaneously and caused the condition emergence of jam in screening board top, further strengthen the screening effect to the sand powder.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the whole structure of the present invention;

FIG. 2 is a schematic view of the mounting structure of the processing shell and crushing teeth of the present invention;

FIG. 3 is a schematic view of the mounting structure of the gear set and crushing teeth of the present invention;

FIG. 4 is a schematic view of the internal structure of the stationary housing of the present invention;

FIG. 5 is a schematic view of the mounting structure of the crushing screen and the vibrating assembly of the present invention;

FIG. 6 is a schematic view of the mounting structure of the fixing base and the grinding base of the present invention;

FIG. 7 is a schematic view of the mounting structure of the grinding base and the grinding roller of the present invention;

FIG. 8 is an enlarged schematic view of portion A of FIG. 6 in accordance with the present invention;

FIG. 9 is a schematic view of the mounting structure of the pulverizing assembly and filter plate of the present invention;

FIG. 10 is a schematic diagram of the mounting structure of the second driving motor and the driven assembly of the present invention;

FIG. 11 is a schematic view of the mounting structure of the shredder assembly of the present invention;

fig. 12 is a schematic view of the internal structure of the tilting block of the present invention.

In the figure: 1. a base; 2. a fixed case; 3. processing the shell; 4. a feed hopper; 5. a discharge hopper; 6. a fixing plate; 61. a mounting plate; 7. driving a first motor; 71. a movable shaft; 8. a gear set; 9. crushing teeth; 10. a scraping plate; 11. a turntable; 111. a knocking member; 12. crushing the sieve plate; 13. a fixing seat; 14. a vibration assembly; 141. an elastic layer; 142. a vibration plate; 143. a vibrating rod; 15. a grinding seat; 16. a grinding roller; 161. grinding the teeth; 17. a rotating shaft; 18. driving a slide bar; 181. driving a sliding block; 19. a screening plate; 20. a fixing frame; 21. a dispersion plate; 22. a second driving motor; 221. an active ratchet; 23. a driven assembly; 231. a rotating lever; 232. a driven ratchet; 233. a swinging block; 24. a screen assembly; 241. a screening frame; 242. a vibration spring; 243. screening the cutter head; 244. a fixing member; 25. a tilting block; 26. an elastic pad; 27. a limiting plate; 271. and a limit spring.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it should be apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments of the present invention, and that the embodiments of the present invention and features in the embodiments may be combined with each other without conflict, and in the following, for convenience of description, the terms such as "up", "down", "left", "right" and "up", "down", "are merely shown in correspondence with the up, down, left and right directions of the drawings themselves, and do not limit the structure, and based on the embodiments in the present invention, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of the present invention.

Referring to fig. 1 to 12, a sand powder roller mill for efficiently preparing recycled sand powder of waste concrete comprises a machine base 1, wherein a fixing shell 2 is fixedly arranged on the machine base 1, a processing shell 3 is fixedly arranged on the upper side of the fixing shell 2, a feeding hopper 4 for feeding the waste concrete is fixedly arranged on the upper side of the processing shell 3, a discharging hopper 5 for discharging the sand powder is fixedly arranged at the bottom of the fixing shell 2, a fixing plate 6 is fixedly arranged on the left side of the processing shell 3, a mounting plate 61 is fixedly arranged on the upper side of the fixing plate 6 and a driving motor 7, a movable shaft 71 is movably connected with a gear set 8 on the right side of the driving motor 7, one end of the movable shaft 71, which is far away from the driving motor 7, extends into the processing shell 3 and is connected with a crushing tooth 9, two groups of gear sets 8 and the crushing tooth 9 are respectively arranged, and the crushing tooth 9 is driven by the movable shaft 71 to crush the waste concrete; a crushing screen plate 12 for carrying out preliminary filtration on crushed concrete is arranged right below the crushing teeth 9, a fixed seat 13 is fixedly arranged on the inner wall of the fixed shell 2, the fixed seat 13 is positioned below the crushing screen plate 12, a vibration component 14 is arranged between the upper side of the fixed seat 13 and the crushing screen plate 12, and the vibration component 14 is used for enabling the crushing screen plate 12 to generate vibration frequency and filtering the crushed concrete; under the elastic force effect through the elastic layer 141, make broken sieve 12 produce and shake frequency about and shake constantly, along with the vibrations effect of broken sieve 12 can shake the broken sand grain of piling up in broken sieve 12 top on the one hand and filter, reduce its possibility of piling up the jam, be favorable to broken sieve 12 to filtering the sand grain after the breakage, on the other hand, the resilience force when the accessible broken sieve 12 shakes is to the resilience of the great sand grain of top, and utilize broken tooth 9 to carry out the recrushing to the sand grain that kick-backs, so make the great granule of granule just can fall again between broken tooth 9 and realize the secondary breakage, can be at the inside repeated breakage of device to broken insufficient sand grain through this setting, and then guarantee the homogeneity of discharged sand grain.

A scraping plate 10 is fixedly arranged on the inner wall of the processing shell 3, the scraping operation is carried out on the concrete at two sides of the crushing teeth 9 through the scraping plate 10, and the scraping plate 10 and the teeth of the crushing teeth 9 are arranged in a mutually crossed mode; the periphery of the movable shaft 71 and two sides of the crushing teeth 9 are provided with turntables 11, the periphery of each turntable 11 is fixedly provided with a plurality of knocking members 111 which are uniformly distributed, and the knocking members 111 are driven to knock the crushing screen plate 12 through the rotation of the movable shaft 71 so as to generate vibration frequency for the crushing screen plate 12; the rotary table 11 and the knocking member 111 are synchronously driven to rotate when the movable shaft 71 rotates, the knocking member 111 rotates to knock the crushing screen plate 12, the vibrating plate 142 is driven by the vibrating rod 143 to squeeze the elastic layer 141 along with the continuous knocking of the crushing screen plate 12 by the knocking member 111, and the crushing screen plate 12 is driven to vibrate continuously at the up-and-down vibration frequency under the elastic action of the elastic layer 141, so that the penetration of sand grains is facilitated.

The vibration assembly 14 includes an elastic layer 141, a vibration plate 142, and a vibration rod 143; the elastic layer 141 is positioned right above the fixed seat 13, the upper side of the elastic layer 141 is fixedly provided with a vibrating plate 142, the upper side of the vibrating plate 142 is fixedly provided with a plurality of uniformly distributed vibrating rods 143, and the upper ends of the vibrating rods 143 are fixedly connected with the bottom of the crushing screen plate 12; through mutually supporting between elastic layer 141, vibrations board 142 and the vibrations pole 143 for broken sieve 12 produces upper and lower vibrations frequency and constantly shakes, along with the vibrations effect of broken sieve 12 can shake the broken sand grain of piling up in broken sieve 12 top and filter, reduces its possibility of piling up the jam, is favorable to broken sieve 12 to filter the sand grain after the breakage.

A grinding seat 15 is fixedly arranged in the fixed shell 2 and between the fixed seats 13, a grinding roller 16 for grinding the crushed concrete is arranged right above the grinding seat 15, and a plurality of grinding teeth 161 for grinding the concrete are fixedly arranged on the outer side of the grinding roller 16; wherein, the grinding seat 15 is provided with a plurality of uniformly distributed grinding holes, the size of the grinding holes is larger than that of the grinding teeth 161, and the grinding teeth 161 and the grinding holes of the grinding seat 15 are combined with each other by the movement of the grinding roller 16 to realize the grinding operation of concrete; through grinding roller 16 in the in-process that removes, grinding tooth 161 alternates in grinding seat 15's grinding hole, utilizes the cooperation effect of grinding roller 16 and grinding seat 15 to carry out the furthest grinding to the sand grain to grind it to the sand powder, realize grinding to the inside more tiny tissue of sand grain simultaneously and smash, make sand grain ground more abundant.

A groove is formed in one side of the fixed seat 13, which faces the grinding roller 16, a driving slide bar 18 is arranged in the groove, a driving slide block 181 is slidably mounted on the driving slide bar 18, one side of the driving slide block 181, which faces the grinding roller 16, is movably connected with the grinding roller 16 through a rotating shaft 17, and the driving slide block 181 slides on the driving slide bar 18 and drives the grinding roller 16 to move to grind concrete; by starting the driving slide block 181, the driving slide block 181 slides on the driving slide bar 18, and in the sliding process of the driving slide block 181, the grinding roller 16 is driven to synchronously move by rotation, so that the grinding roller 16 is driven to roll above the grinding seat 15, and grinding operations are performed on sand grains above the grinding seat 15.

A screening plate 19 is arranged in the fixed shell 2 and below the grinding seat 15, a fixing frame 20 is fixedly arranged on the inner wall of the fixed shell 2, the fixing frame 20 is positioned above the screening plate 19, the inner wall of the fixing frame 20 is fixedly connected with a dispersing disc 21 by a bracket, the dispersing disc 21 is positioned right below the grinding seat 15, and the dispersing disc 21 is used for carrying out dispersing treatment on the concrete sand powder ground by the grinding seat 15; the setting through the setting of dispersion plate 21 makes the sand powder that drops down contact with dispersion plate 21 earlier, utilizes dispersion plate 21 can play the dispersion to the sand powder of whereabouts for the sand powder of whereabouts evenly disperses in the top of screening board 19.

The lower side of the dispersion plate 21 is provided with a groove, a second driving motor 22 is fixedly arranged in the groove, a driving ratchet 221 is rotatably connected to the lower side of the second driving motor 22, a driven component 23 and a screening component 24 are arranged on the lower side of the dispersion plate 21, and the driven component 23 is positioned between the dispersion plate 21 and the screening component 24; the second driving motor 22 is started under the control of a program, the output end of the second driving motor 22 is utilized to drive the driving ratchet 221 to rotate, and the driving of the driven assembly 23 is utilized to drive the screening assembly 24 to operate.

The driven assembly 23 includes a rotation lever 231, a driven ratchet 232, and a swing block 233; the rotating rod 231 is arranged right below the second driving motor 22, a driven ratchet wheel 232 meshed with the driving ratchet wheel 221 is fixedly arranged on the rotating rod 231, a plurality of swing blocks 233 which are uniformly distributed are arranged on the rotating rod 231, and the plurality of swing blocks 233 are arranged in different directions; the rotation rod 231 drives the swinging block 233 to synchronously rotate by utilizing the meshing action of the driving ratchet 221 and the driven ratchet 232, so that the swinging block 233 rotates.

Screen assembly 24 includes screen frame 241, shock spring 242, screen cutter head 243, and securing member 244; the screening frame 241 is located under the rotating rod 231, the upper side of the screening frame 241 is fixedly connected with the bottom of the dispersion plate 21 through a vibration spring 242, a screening cutter head 243 for screening and grinding concrete sand powder and a fixing piece 244 for pushing the screening plate 19 are fixedly arranged at the bottom of the screening frame 241, and the screening plate 19 is pushed by the fixing piece 244 to generate vibration frequency; the screening frame 241 is knocked through the swinging block 233 which rotates, so that the screening frame 241 generates downward acting force, the screening cutter head 243 is utilized to further crush sand powder, and meanwhile, the fixing piece 244 is utilized to push the screening plate 19, so that the screening plate 19 generates up-down vibration frequency, and the screening effect on the sand powder is facilitated.

An inclined block 25 is fixedly arranged on the inner wall of the fixed shell 2, the inclined block 25 is positioned above the screening plate 19, two grooves are formed in one side of the inclined block 25, which faces the screening plate 19, an elastic pad 26 is arranged in the groove, which is close to one side of the inner wall of the fixed shell 2, and the bottom of the elastic pad 26 is elastically connected with the screening plate 19; wherein, the other groove of the inclined block 25 facing to one side of the screening plate 19 is internally provided with a limiting plate 27, the upper side of the limiting plate 27 is elastically connected with the top wall of the groove through a limiting spring 271, and the limiting plate 27 is used for limiting the concrete sand powder; under the action of the elastic force of the elastic pad 26, the screening plate 19 is caused to generate vertical vibration frequency, the phenomenon that broken slag flies in the process of smashing and grinding sand powder can be effectively avoided through the arrangement, meanwhile, the screening plate 19 vibrates vertically, the limiting spring 271 is utilized to push the limiting plate 27 and enables the bottom of the limiting plate 27 to be always in contact with the screening plate 19, and sand powder can be effectively prevented from moving between the screening plate 19 and the inclined block 25 in the process of vibrating vertically through the arrangement.

Specific use and action of the embodiment:

working principle: when the waste concrete crushing machine is used, waste concrete is put into the feeding hole above the feeding hopper 4, meanwhile, the waste concrete slides downwards to the position above the crushing teeth 9 along the inclined surface of the inner wall of the feeding hopper 4, the first driving motor 7 is started, the gear set 8 and the crushing teeth 9 are driven to rotate by the movable shaft 71, the two groups of gears on the gear set 8 are meshed with each other, the two groups of crushing teeth 9 are caused to rotate in different directions and rotate relatively, the two groups of crushing teeth 9 are meshed with each other and crush the waste concrete, the concrete slag outside the crushing teeth 9 is scraped by the scraping plate 10, the clamping is avoided, the crushed concrete falls downwards to the position above the crushing sieve plate 12, sand grains are formed when the waste concrete is crushed sufficiently, the sand grains with smaller grains continuously fall downwards through the sieve holes on the crushing sieve plate 12 and carry out the next procedure, and the larger grains above the crushing sieve plate 12 still stay above the crushing sieve plate; the rotary table 11 and the knocking member 111 are synchronously driven to rotate based on the rotation of the movable shaft 71, the rotating knocking member 111 is enabled to knock the crushing screen plate 12, the knocking member 111 is enabled to continuously knock the crushing screen plate 12, the vibrating plate 142 is driven by the vibrating rod 143 to squeeze the elastic layer 141, the crushing screen plate 12 is enabled to vibrate continuously under the elastic force of the elastic layer 141, the crushing sand grains accumulated above the crushing screen plate 12 can be subjected to shaking filtration along with the vibration effect of the crushing screen plate 12, the possibility of accumulation and blockage is reduced, the crushing screen plate 12 is facilitated to filter the crushed sand grains, the rebound of the larger sand grains above the crushing screen plate 12 can be achieved by the rebound force when the crushing screen plate 12 vibrates, and the rebound sand grains are crushed again by the crushing teeth 9, so that the larger particles can fall between the crushing teeth 9 again and secondary crushing is achieved;

the primarily crushed sand particles pass through the crushing screen plate 12, fall down and fall to the upper part of the grinding seat 15 based on self gravity, the driving slide block 181 is started to enable the driving slide block 181 to slide on the driving slide bar 18, and in the sliding process of the driving slide block 181, the grinding roller 16 is driven to synchronously move by rotation, at the moment, the grinding roller 16 rolls above the grinding seat 15 and carries out crushing and grinding operation on the sand particles above the grinding seat 15, in the moving process of the grinding roller 16, the grinding teeth 161 are inserted into the grinding holes of the grinding seat 15, so that the grinding roller 16 effectively rotates on the rotating shaft 17, the sand particles can be ground to the greatest extent through the interaction of the grinding roller 16 and the grinding seat 15, and the grinding and grinding are carried out grinding to the sand powder, and simultaneously, the grinding and grinding are carried out on the finer tissues inside the sand particles, so that the grinding ground is more sufficient and more uniform, and the production quality of sand powder is further improved;

the ground sand powder passes through the grinding holes of the grinding seat 15 and falls downwards, meanwhile, the sand powder falling downwards can be contacted with the dispersing disc 21 through the arrangement of the dispersing disc 21, the dispersing disc 21 can be used for dispersing the falling sand powder, the falling sand powder is uniformly dispersed above the screening plate 19, and the possibility that the sand powder is accumulated together and blocked can be effectively avoided through the arrangement; meanwhile, the second driving motor 22 is started under the control of a program, the output end of the second driving motor 22 is utilized to drive the driving ratchet wheel 221 to rotate, the rotating rod 231 is utilized to drive the swinging block 233 to synchronously rotate under the meshing action of the driving ratchet wheel 221 and the driven ratchet wheel 232, the screening frame 241 is knocked through the rotating swinging block 233, the screening frame 241 is caused to generate downward acting force, and the screening cutter head 243 is utilized to further crush sand powder; and screening frame 241 moves down's in-process, drive mounting 244 simultaneously and promote screening board 19, and under the elasticity effect of elastic pad 26, make screening board 19 produce vertical vibration frequency, and because set up swing piece 233 to be different directions, when making swing piece 233 promote a plurality of screening frame 241, a plurality of screening frame 241 is different motion state, and then make screening board 19 can keep high vibration frequency, and through this setting up can effectually avoid smashing the phenomenon that the broken sediment flies in-process that grinds the sand powder appears, also guaranteed screening efficiency to the sand powder, avoided the sand powder to pile up the circumstances emergence that causes the jam in screening board 19 top simultaneously, further strengthen the screening effect to the sand powder, and make the sand powder that reaches the standard follow discharge hopper 5 discharge, and collect the processing through outside to the sand powder of discharging, further improve device's production efficiency.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.

Claims

1. The sand powder roller mill for efficiently preparing the reclaimed sand powder of the waste concrete comprises a stand (1), and is characterized in that:

the device comprises a machine base (1), and is characterized in that a fixing shell (2) is fixedly arranged on the machine base (1), a processing shell (3) is fixedly arranged on the upper side of the fixing shell (2), a feed hopper (4) for feeding waste concrete is fixedly arranged on the upper side of the processing shell (3), a discharge hopper (5) for discharging sand powder is fixedly arranged at the bottom of the fixing shell (2), a fixing plate (6) is fixedly arranged on the left side of the processing shell (3), a mounting plate (61) is fixedly arranged on the upper side of the fixing plate (6) and is fixedly arranged with a driving motor I (7), a movable shaft (71) is movably connected with a gear set (8) on the right side of the driving motor I (7), one end of the movable shaft (71) far away from the driving motor I (7) extends into the processing shell (3) and is connected with crushing teeth (9), and the gear set (8) and the crushing teeth (9) are provided with two groups;

the concrete crushing machine is characterized in that a crushing screen plate (12) for carrying out preliminary filtration on crushed concrete is arranged under the crushing teeth (9), a fixing seat (13) is fixedly arranged on the inner wall of the fixing shell (2), the fixing seat (13) is located below the crushing screen plate (12), a vibration component (14) is arranged between the upper side of the fixing seat (13) and the crushing screen plate (12), and the vibration component (14) is used for enabling the crushing screen plate (12) to generate vibration frequency and filtering the crushed concrete.

2. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 1, wherein: a scraping plate (10) is fixedly arranged on the inner wall of the processing shell (3), concrete on two sides of the crushing teeth (9) is scraped through the scraping plate (10), and the scraping plate (10) and teeth of the crushing teeth (9) are arranged in a mutually-crossed mode;

the rotary table (11) is arranged on the periphery of the movable shaft (71) and positioned on two sides of the crushing teeth (9), a plurality of knocking members (111) which are uniformly distributed are fixedly arranged on the periphery of the rotary table (11), and the knocking members (111) are driven to knock the crushing screen plate (12) through rotation of the movable shaft (71) so that the crushing screen plate (12) generates vibration frequency.

3. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 1, wherein: the vibration assembly (14) comprises an elastic layer (141), a vibration plate (142) and a vibration rod (143);

the vibrating screen comprises a fixed seat (13), an elastic layer (141) is arranged right above the fixed seat (13), a vibrating plate (142) is fixedly arranged on the upper side of the elastic layer (141), a plurality of uniformly distributed vibrating rods (143) are fixedly arranged on the upper side of the vibrating plate (142), and the upper ends of the vibrating rods (143) are fixedly connected with the bottom of the crushing screen plate (12).

4. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 1, wherein: a grinding seat (15) is fixedly arranged inside the fixed shell (2) and between the fixed seats (13), a grinding roller (16) for grinding the crushed concrete is arranged right above the grinding seat (15), and a plurality of grinding teeth (161) for grinding the concrete are fixedly arranged on the outer side of the grinding roller (16);

the grinding seat (15) is provided with a plurality of uniformly distributed grinding holes, the size of each grinding hole is larger than that of each grinding tooth (161), and the grinding teeth (161) and the grinding holes of the grinding seat (15) are combined with each other through movement of the grinding roller (16) to realize the grinding operation of concrete.

5. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 4, wherein: the fixing seat (13) is provided with a groove towards one side of the grinding roller (16), a driving sliding rod (18) is arranged in the groove, a driving sliding block (181) is slidably arranged on the driving sliding rod (18), one side of the driving sliding block (181) towards the grinding roller (16) is movably connected with the grinding roller (16) through a rotating shaft (17), and the driving sliding block (181) slides on the driving sliding rod (18) and drives the grinding roller (16) to move so as to grind concrete.

6. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 4, wherein: the inside of fixed casing (2) and the below that is located grinding seat (15) are provided with screening board (19), fixed mounting has mount (20) on the inner wall of fixed casing (2), mount (20) are located the top of screening board (19), the inner wall of mount (20) utilizes support and dispersion impeller (21) to be connected mutually fixed, dispersion impeller (21) are located grinding seat (15) under, through dispersion impeller (21) are to the concrete sand powder after grinding seat (15) carries out dispersion treatment.

7. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 6, wherein: the lower side of dispersion plate (21) is seted up flutedly, and the inside of recess is fixed to be provided with driving motor two (22), driving motor two's (22) downside rotates and is connected with initiative ratchet (221), the downside of dispersion plate (21) is provided with driven component (23) and screening subassembly (24), and driven component (23) are located between dispersion plate (21) and screening subassembly (24).

8. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 7, wherein: the driven assembly (23) comprises a rotating rod (231), a driven ratchet wheel (232) and a swinging block (233);

the rotating rod (231) is arranged right below the driving motor II (22), a driven ratchet wheel (232) meshed with the driving ratchet wheel (221) is fixedly arranged on the rotating rod (231), a plurality of swing blocks (233) which are uniformly distributed are arranged on the rotating rod (231), and the plurality of swing blocks (233) are arranged in different directions.

9. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 8, wherein: the screening assembly (24) comprises a screening frame (241), a vibrating spring (242), a screening cutter head (243) and a fixing piece (244);

screening frame (241) are located dead man (231), the upside of screening frame (241) is through vibration spring (242) and dispersion disc (21) bottom looks fixed connection, the fixed screening tool bit (243) that carries out screening grinding to concrete sand powder and the mounting (244) that promotes screening board (19) that are provided with in bottom of screening frame (241), promote screening board (19) through mounting (244) and make screening board (19) produce vibration frequency.

10. The sand mill for efficiently preparing the recycled sand powder of the waste concrete according to claim 6, wherein: an inclined block (25) is fixedly arranged on the inner wall of the fixed shell (2), the inclined block (25) is positioned above the screening plate (19), two grooves are formed in one side, facing the screening plate (19), of the inclined block (25), an elastic pad (26) is arranged in the groove close to one side of the inner wall of the fixed shell (2), and the bottom of the elastic pad (26) is elastically connected with the screening plate (19);

the concrete sand powder screening device is characterized in that a limiting plate (27) is arranged in the other groove on one side of the inclined block (25) facing the screening plate (19), the upper side of the limiting plate (27) is elastically connected with the top wall of the groove through a limiting spring (271), and concrete sand powder is limited through the limiting plate (27).