CN113634349B

CN113634349B - Building concrete preparation grit material screening machine

Info

Publication number: CN113634349B
Application number: CN202111199567.2A
Authority: CN
Inventors: 王道玲
Original assignee: Suining Taining Building Materials Co ltd
Current assignee: Suining Taining Building Materials Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-01-04
Anticipated expiration: 2041-10-14
Also published as: CN113634349A

Abstract

The invention relates to the technical field of building concrete, in particular to a screening machine for preparing sandstone materials from building concrete, which comprises a base, an auxiliary separation device and a crushing and filtering device, wherein the auxiliary separation device is arranged on the base; according to the invention, the discharge rate of the fine sand and stone materials is improved by firstly breaking the sand and stone material adhesive mass and then grinding and crushing the oversize sand and stone material, so that the problems that sand and stone cannot be completely separated by a direct screening method and the yield of high-performance concrete is too low are solved; according to the invention, materials which do not conform to the size of the screened particles cannot be clamped by meshes due to extrusion in a winnowing blanking mode, and the materials are screened and blanked again in a dust re-raising mode, so that the problem of low winnowing screening efficiency is solved.

Description

Building concrete preparation grit material screening machine

Technical Field

The invention relates to the technical field of building concrete, in particular to a screening machine for preparing sandstone materials from building concrete.

Background

Building concrete is one of the most important building materials in the world today; although the use of the material has a long history, in recent decades, the material has a great leap in material performance and construction process, and the material is widely used in building engineering by firstly mixing and stirring cement, gravel and water together, and then carrying out air drying and shaping after pouring concrete.

In the process of producing concrete, the performance of the concrete is slightly different due to the sand and stone materials with different grain compositions, so that the sand and stone are required to be screened before the concrete is produced, and the following problems often exist in the process of screening the sand and stone: firstly, as the sand and stone materials are placed for a long time, part of sand and stone are bonded into blocks, the sand and stone can not be completely separated in a direct screening mode, secondly, the concrete is finer due to the sand and stone materials with different grades, the performance of the obtained concrete is better, the proportion of fine materials in the natural sand and stone materials is not high, and the output of high-performance concrete is too low indirectly; secondly, when screening the grit material through the screen cloth, often can lead to the grit material to block up the mesh to lead to the screening efficiency of grit material to reduce gradually.

Disclosure of Invention

In order to solve the problems, the invention is realized by adopting the following technical scheme: a screening machine for building concrete preparation sand stone materials comprises a base, an auxiliary separation device and a crushing and filtering device, wherein the auxiliary separation device is arranged on the base, and the crushing and filtering device is arranged in the auxiliary separation device; the base consists of a horizontal plate and a vertical plate arranged at the right end of the horizontal plate, the top of the vertical plate is provided with a triangular block, the top of the horizontal plate gradually inclines upwards from left to right, the auxiliary separation device comprises a support plate, an air pump, an air outlet pipe, rotating plates, fan blades, a driving mechanism and a collecting tank, the support plates are symmetrically arranged at the front end and the rear end of the base, an air guide cavity and a placement cavity are sequentially arranged in the support plate at the front side of the base from top to bottom, a plurality of air guide cavities and placement cavities are distributed from left to right, the air pump is arranged on the inner wall at the lower end of the placement cavity and is communicated with the air guide cavity through a pipeline, the air outlet pipe is uniformly embedded at the rear end of the support plate at the front side of the base in a stepped manner from left to right, the air outlet pipe is communicated with the air guide cavity, the top of the horizontal plate of the base is rotatably provided with the two rotating plates distributed from left to right, and the outer walls of the rotating plates are uniformly provided with the fan blades along the circumferential direction, the lower end of the rotating plate is provided with a driving mechanism, and the front end of the supporting plate positioned at the rear side of the base is uniformly provided with a plurality of stepped collecting grooves from left to right.

Crushing filter equipment include the mounting bracket, drive actuating cylinder, the lifter plate, extrusion mechanism, the extrusion piece, the mechanism of milling, feed roller row, drive mechanism and graticule mesh board, the mounting bracket sets up between two backup pads, the mounting bracket lower extreme is provided with and drives actuating cylinder, it is provided with the lifter plate to drive the actuating cylinder lower extreme, extrusion mechanism is connected with the lifter plate through sliding fit's mode, lifter plate lower extreme middle part is provided with the extrusion piece, lifter plate lower extreme left side is provided with the mechanism of milling, be provided with two sets of feed rollers row that distribute about between two backup pads, left feed roller row is less than the feed roller row on right side, feed roller row rear end is provided with drive mechanism, be provided with graticule mesh board between two backup pads.

Preferably, the driving mechanism comprises a rotating motor, a chain wheel and a transmission chain, a driving cavity is formed in a horizontal plate of the base, the rotating motor is arranged on the left side of the inner wall of the lower end of the driving cavity, the chain wheel is arranged at the lower end of the rotating plate, the transmission chain is sleeved on the outer walls of the two chain wheels, and the upper end of the rotating motor is connected with the chain wheel close to the left side wall of the driving cavity through a coupler.

Preferably, the feed roller row include live-rollers and broken board soon, the live-rollers from a left side to turn right the even rotation setting between two backup pads, evenly be provided with broken board soon in the past backward on the live-rollers outer wall, broken board soon on two adjacent live-rollers outer walls is the crisscross distribution mode and arranges.

Preferably, the extrusion mechanism include slip post, stripper plate and extrusion spring, the slip post is connected with the lifter plate through sliding fit's mode, the lower extreme of slip post is provided with the stripper plate, is provided with the extrusion spring between stripper plate and the lifter plate.

Preferably, the upper end of the sliding column is provided with a limit baffle, and the extrusion spring is sleeved on the outer wall of the sliding column.

Preferably, the grinding mechanism comprises a grinding pressing frame, a grinding motor and a material blocking frame, the left side of the lower end of the lifting plate is rotatably provided with the grinding pressing frame, the grinding pressing frame is of a concave cylindrical structure, the left side of the lower end of the lifting plate is provided with the grinding motor, the output end of the grinding motor is connected with the inner wall of the lower end of the grinding pressing frame through a coupler, and the material blocking frame is arranged at the upper end of the grid plate.

Preferably, the transmission mechanism comprises a first transmission wheel, a first transmission belt, a driving motor, a second transmission wheel and a second transmission belt, the first transmission wheel is arranged at the rear end of the rotating roller, the first transmission belt is sleeved on the outer wall of the first transmission wheel at the same height, a transmission cavity is formed in the supporting plate located on the rear side of the base, the driving motor is arranged on the inner wall of the rear end of the transmission cavity, the second transmission wheel is arranged at the rear end of the first transmission wheel on two adjacent rotating rollers in the two groups of feeding roller rows, the second transmission belt is sleeved on the outer wall of the second transmission wheel, and the output end of the driving motor is connected with one of the second transmission wheels through a coupler.

Preferably, the gaps in the grid plate are provided with grinding screens, and filter screens are arranged between the inner walls of the upper end and the lower end of the collecting tank.

The invention has the beneficial effects that: 1. the discharging rate of the fine sand and stone materials is improved by firstly breaking the sand and stone material adhesive mass and then grinding and crushing the oversize sand and stone material, so that the problems that sand and stone cannot be completely separated by a direct screening method and the yield of high-performance concrete is too low are solved; according to the invention, through a winnowing blanking mode, materials which do not accord with the size of screened particles cannot be blocked by extrusion, and the materials are sieved again and blanked through a dust re-raising mode, so that the problem of low winnowing screening efficiency is solved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic top view of fig. 1 of the present invention.

Fig. 3 is a cross-sectional view taken along line a-a of fig. 2 in accordance with the present invention.

Fig. 4 is a cross-sectional view of the invention taken along section B-B of fig. 2.

Fig. 5 is a schematic view showing the structure of the turning rolls and the crushing rotor plate according to the present invention.

FIG. 6 is a schematic view showing the structure of the crushing and filtering apparatus according to the present invention.

In the figure: 1. a base; 2. an auxiliary separation device; 21. a support plate; 22. an air pump; 23. an air outlet pipe; 24. a rotating plate; 25. a fan blade; 26. a drive mechanism; 261. a rotating electric machine; 262. a sprocket; 263. a drive chain; 27. collecting tank; 3. a pulverizing and filtering device; 31. a mounting frame; 32. a driving cylinder; 33. a lifting plate; 34. an extrusion mechanism; 341. a sliding post; 342. a pressing plate; 343. a compression spring; 35. extruding the block; 36. a milling mechanism; 361. grinding and pressing frame; 362. a grinding motor; 363. a material blocking frame; 37. a feed roller row; 371. a rotating roller; 372. crushing a rotary plate; 38. a transmission mechanism; 381. a first transmission wheel; 382. a first transmission belt; 383. a drive motor; 384. a second driving wheel; 385. a second transmission belt; 39. grid plate.

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 explained below by combining the specific drawings.

Referring to fig. 1, the screening machine for building concrete preparation sand stone materials comprises a base 1, an auxiliary separation device 2 and a crushing and filtering device 3, wherein the auxiliary separation device 2 is arranged on the base 1, and the crushing and filtering device 3 is arranged in the auxiliary separation device 2; the base 1 consists of a horizontal plate and a vertical plate arranged at the right end of the horizontal plate, a triangular block is arranged at the top of the vertical plate, the top of the horizontal plate gradually inclines upwards from left to right, the slope of the triangular block is convenient for sand and stones to be poured into the crushing and filtering device 3, the auxiliary separating device 2 comprises a supporting plate 21, an air pump 22, an air outlet pipe 23, a rotating plate 24, a blast blade 25, a driving mechanism 26 and a collecting tank 27, the supporting plate 21 is symmetrically arranged at the front end and the rear end of the base 1, an air guide cavity and a placement cavity are sequentially arranged in the supporting plate 21 at the front side of the base 1 from top to bottom, a plurality of air guide cavities and placement cavities are distributed from left to right, the air pump 22 is arranged on the inner wall at the lower end of the placement cavity, the air pump 22 is communicated with the air guide cavity through a pipeline, the air outlet pipe 23 is uniformly embedded at the rear end of the supporting plate 21 at the front side of the base 1 in a stepped shape from right, and the air outlet pipe 23 is communicated with the air guide cavity, the top of a horizontal plate of the base 1 is rotatably provided with two rotating plates 24 which are distributed left and right, the outer walls of the rotating plates 24 are uniformly provided with fan blades 25 along the circumferential direction, the lower ends of the rotating plates 24 are provided with driving mechanisms 26, the front end of a supporting plate 21 positioned at the rear side of the base 1 is uniformly provided with a plurality of stepped collecting grooves 27 from left to right, and filter screens are arranged between the inner walls of the upper end and the lower end of each collecting groove 27; after the grit material is smashed the unloading from smashing filter equipment 3, air pump 22 blows the grit material to the collecting vat 27 that corresponds in through going out tuber pipe 23, the grit material is followed the leading-in collecting vat 27 unloading of filter screen, the grit material that does not pass through the filter screen falls to base 1's horizontal plate top, the ejection of compact that slides left along base 1's horizontal plate top again, actuating mechanism 26 drives the deflector 24 and blows the rotatory back of raising lighter grit material of air-blast leaf 25, the rethread goes out tuber pipe 23 and blows the grit material to collecting vat 27 unloading.

Referring to fig. 3, the driving mechanism 26 includes a rotating electrical machine 261, a chain wheel 262 and a transmission chain 263, a driving cavity is formed in the horizontal plate of the base 1, the rotating electrical machine 261 is arranged on the left side of the inner wall of the lower end of the driving cavity, the chain wheel 262 is arranged at the lower end of the rotating plate 24, the transmission chain 263 is sleeved on the outer wall of the chain wheel 262, the upper end of the rotating electrical machine 261 is connected with the chain wheel 262 near the left side wall of the driving cavity through a coupler, and the rotating electrical machine 261 drives the two rotating plates 24 and the blower blade 25 to rotate through the chain wheel 262 and the transmission chain 263.

Referring to fig. 1, 2, 3, 4 and 6, the pulverizing and filtering apparatus 3 includes an installation frame 31, a driving cylinder 32, a lifting plate 33, an extruding mechanism 34, an extruding block 35, a grinding mechanism 36, a feeding roller row 37, a transmission mechanism 38 and a grid plate 39, the installation frame 31 is disposed between the tops of two support plates 21, the driving cylinder 32 is disposed at the lower end of the installation frame 31, the lifting plate 33 is disposed at the lower end of the driving cylinder 32, the extruding mechanism 34 is connected with the lifting plate 33 in a sliding fit manner, the extruding block 35 is disposed at the middle of the lower end of the lifting plate 33, the grinding mechanism 36 is disposed at the left side of the lower end of the lifting plate 33, two feeding roller rows 37 distributed from left to right are disposed between the two support plates 21, the feeding roller row 37 at the left side is lower than the feeding roller row 37 at the right side, the transmission mechanism 38 is disposed at the rear end of the feeding roller row 37, the grid plate 39 is disposed between the two support plates 21, a grid plate 39 is located below milling mechanism 36.

Referring to fig. 5, the feed roller row 37 includes a rotating roller 371 and crushing rotary plates 372, the rotating roller 371 is uniformly rotated from left to right between the two support plates 21, the crushing rotary plates 372 are uniformly arranged on the outer walls of the rotating roller 371 from front to back, and the crushing rotary plates 372 on the outer walls of two adjacent rotating rollers 371 at the same height are arranged in a staggered distribution manner; feed roller row 37 is with grit material to grid 39 direction removal, drive actuating cylinder 32 and drive extrusion mechanism 34, extrusion piece 35, grinding mechanism 36 and move down simultaneously, thereby make grit material beat garrulous follow gap unloading by broken spiral plate 372 when hugging closely on feed roller row 37, reciprocal back many times, grit material is all beaten garrulous by broken spiral plate 372 from feed roller row 37, and the too big grit material of granule then is by direction grid 39 upper ends, the fine unloading of grit material is ground to rethread grinding mechanism 36.

Referring to fig. 3, the pressing mechanism 34 includes a sliding column 341, a pressing plate 342, and a pressing spring 343, the sliding column 341 is connected to the lifting plate 33 in a sliding fit manner, a limit baffle is disposed at the upper end of the sliding column 341, the pressing plate 342 is disposed at the lower end of the sliding column 341, the pressing spring 343 is disposed between the pressing plate 342 and the lifting plate 33, and the pressing spring 343 is sleeved on the outer wall of the sliding column 341; after the gravel is crushed by the crushing rotary plate 372 and discharged from the gap, the driving cylinder 32 drives the extrusion plate 342 to continuously move downwards so as to keep extrusion force on the gravel, the extrusion spring 343 starts to contract after being stressed, and the extrusion block 35 directly gives the largest pressure to the gravel, so that the gravel with hard texture is directly crushed by extrusion.

Continuing to refer to fig. 3, the milling mechanism 36 includes a milling pressing frame 361, a milling motor 362 and a material blocking frame 363, the milling pressing frame 361 is rotatably arranged on the left side of the lower end of the lifting plate 33, the milling pressing frame 361 is of a concave cylindrical structure, the milling motor 362 is arranged on the left side of the lower end of the lifting plate 33, the output end of the milling motor 362 is connected with the inner wall of the lower end of the milling pressing frame 361 through a coupler, and the material blocking frame 363 is arranged on the upper end of the grid plate 39; the gaps in the grid plates 39 are provided with grinding screens; the grinding motor 362 drives the grinding pressing frame 361 to rotate, so that the grinding pressing frame is matched with the grinding screen to grind the sand material above the grid plate 39, and the grinding screen is not deformed due to the extrusion of the sand material when the sand material is ground due to the structure of the grid plate 39.

Referring to fig. 4, the transmission mechanism 38 includes a first transmission wheel 381, a first transmission belt 382, a driving motor 383, a second transmission wheel 384 and a second transmission belt 385, the first transmission wheel 381 is arranged at the rear end of the rotary roller 371, the first transmission belt 382 is sleeved on the outer wall of the first transmission wheel 381 at the same height, a transmission cavity is formed in the support plate 21 at the rear side of the base 1, the driving motor 383 is arranged on the inner wall of the rear end of the transmission cavity, the second transmission wheel 384 is arranged at the rear end of the first transmission wheel 381 on two adjacent rotary rollers 371 in two groups of feed roller rows 37, the second transmission belt 385 is sleeved on the outer walls of the upper and lower second transmission wheels 384, and the output end of the driving motor 383 is connected with one of the second transmission wheel 384 through a coupler; the driving motor 383 drives the two first driving wheels 381 to rotate through the cooperation of the second driving wheel 384 and the second driving belt 385, and then drives the plurality of rotating rollers 371 and the crushing rotary plate 372 to rotate simultaneously through the cooperation of the first driving wheels 381 and the first driving belt 382.

The working principle is as follows: after the sand and stone material is fed, the feed roller row 37 guides the sand and stone material to move upwards towards the grid plate 39 under the action of the transmission mechanism 38, the driving cylinder 32 drives the extrusion mechanism 34, the extrusion block 35 and the grinding mechanism 36 to move downwards simultaneously, so that the sand and stone material is crushed by the crushing rotary plate 372 when clinging to the feed roller row 37 and is discharged from gaps, after the sand and stone material is repeatedly crushed by the crushing rotary plate 372 from the feed roller row 37, the sand and stone material with overlarge particles is guided to the upper end of the grid plate 39, and the sand and stone material is ground and discharged through the grinding mechanism 36; when the grit material is led on base 1 horizontal plate top, air pump 22 blows the grit material to collecting vat 27 through going out tuber pipe 23, the grit material is followed the leading-in unloading of filter screen to collecting vat 27, the grit material that does not pass through the filter screen falls to base 1's horizontal plate top, remove the ejection of compact left along base 1's horizontal plate top again, actuating mechanism 26 drives rotor plate 24 and the rotation of blast air leaf 25 back of raising lighter grit material, rethread goes out tuber pipe 23 and blows the grit material to collecting vat 27 unloading.

The foregoing shows and describes the general principles, principal features and advantages of the invention; it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims; the scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a building concrete preparation grit material screening machine, includes base (1), supplementary separator (2) and crushing filter equipment (3), its characterized in that: the base (1) is provided with an auxiliary separation device (2), and the crushing and filtering device (3) is arranged in the auxiliary separation device (2); the base (1) consists of a horizontal plate and a vertical plate arranged at the right end of the horizontal plate, a triangular block is arranged at the top of the vertical plate, the top of the horizontal plate gradually inclines upwards from left to right, the auxiliary separation device (2) comprises a support plate (21), an air pump (22), an air outlet pipe (23), a rotating plate (24), a fan blade (25), a driving mechanism (26) and a collecting tank (27), the support plate (21) is symmetrically arranged at the front end and the rear end of the base (1), an air guide cavity and a placement cavity are sequentially arranged in the support plate (21) positioned at the front side of the base (1) from top to bottom, the air guide cavity and the placement cavity are distributed from left to right, the air pump (22) is arranged on the inner wall at the lower end of the placement cavity, the air pump (22) is communicated with the air guide cavity through a pipeline, the air outlet pipe (23) is uniformly embedded at the rear end of the support plate (21) positioned at the front side of the base (1) in a stepped shape from left to right, the air outlet pipe (23) is communicated with the air guide cavity, the top of a horizontal plate of the base (1) is rotatably provided with two rotating plates (24) which are distributed left and right, the outer walls of the rotating plates (24) are uniformly provided with fan blades (25) along the circumferential direction, the lower ends of the rotating plates (24) are provided with driving mechanisms (26), and the front end of a supporting plate (21) positioned at the rear side of the base (1) is uniformly provided with a plurality of stepped collecting grooves (27) from left to right;

the crushing and filtering device (3) comprises an installation frame (31), a driving cylinder (32), a lifting plate (33), an extrusion mechanism (34), an extrusion block (35), a grinding mechanism (36), a feeding roller row (37), a transmission mechanism (38) and a grid plate (39), wherein the installation frame (31) is arranged between the two support plates (21), the driving cylinder (32) is arranged at the lower end of the installation frame (31), the lifting plate (33) is arranged at the lower end of the driving cylinder (32), the extrusion mechanism (34) is connected with the lifting plate (33) in a sliding fit manner, the extrusion block (35) is arranged in the middle of the lower end of the lifting plate (33), the grinding mechanism (36) is arranged on the left side of the lower end of the lifting plate (33), two groups of feeding roller rows (37) which are distributed left and right are arranged between the two support plates (21), and the feeding roller row (37) on the left side is lower than the feeding roller row (37) on the right side, the rear end of the feed roller row (37) is provided with a transmission mechanism (38), and a grid plate (39) is arranged between the two supporting plates (21).

2. The building concrete preparation grit material screening machine of claim 1, wherein: drive mechanism (26) including rotating electrical machines (261), sprocket (262) and drive chain (263), seted up the drive chamber in the horizontal plate of base (1), the left side is provided with rotating electrical machines (261) on the inner wall of drive chamber lower extreme, rotor plate (24) lower extreme is provided with sprocket (262), the cover is equipped with drive chain (263) on two sprocket (262) outer walls, rotating electrical machines (261) upper end is connected with sprocket (262) that are close to the left side wall of drive chamber through the shaft coupling.

3. The building concrete preparation grit material screening machine of claim 1, wherein: feed roller row (37) including live-rollers (371) and broken board (372) soon, live-rollers (371) turn right from a left side and evenly rotate the setting between two backup pads (21), evenly be provided with broken board (372) soon in the past backward on live-rollers (371) outer wall, broken board (372) soon on two adjacent live-rollers (371) outer walls are the crisscross distribution mode and arrange.

4. The building concrete preparation grit material screening machine of claim 1, wherein: the extrusion mechanism (34) comprises a sliding column (341), an extrusion plate (342) and an extrusion spring (343), the sliding column (341) is connected with the lifting plate (33) in a sliding fit mode, the extrusion plate (342) is arranged at the lower end of the sliding column (341), and the extrusion spring (343) is arranged between the extrusion plate (342) and the lifting plate (33).

5. The building concrete preparation grit material screening machine of claim 4, wherein: the upper end of the sliding column (341) is provided with a limit baffle, and the extrusion spring (343) is sleeved on the outer wall of the sliding column (341).

6. The building concrete preparation grit material screening machine of claim 1, wherein: milling mechanism (36) including milling and pressing frame (361), mill motor (362) and fender material frame (363), lifter plate (33) lower extreme left side is rotated and is provided with and mills and presses frame (361), mill and press frame (361) to be concave type cylinder structure, lifter plate (33) lower extreme left side is provided with and mills motor (362), mill motor (362) output end is connected with milling and pressing frame (361) lower extreme inner wall through the shaft coupling, graticule mesh board (39) upper end is provided with fender material frame (363).

7. The building concrete preparation grit material screening machine of claim 1, wherein: the transmission mechanism (38) comprises a first transmission wheel (381), a first transmission belt (382), a driving motor (383), a second transmission wheel (384) and a second transmission belt (385), wherein the first transmission wheel (381) is arranged at the rear end of the rotating roller (371), the first transmission belt (382) is sleeved on the outer wall of the first transmission wheel (381) at the same height, a transmission cavity is formed in a supporting plate (21) at the rear side of the base (1), the driving motor (383) is arranged on the inner wall at the rear end of the transmission cavity, the second transmission wheel (384) is arranged at the rear end of the first transmission wheel (381) on two adjacent rotating rollers (371) in the two groups of feeding roller rows (37), the second transmission wheel (385) is sleeved on the outer wall of the second transmission wheel (384), and the output end of the driving motor (383) is connected with the second transmission wheel (384) through a coupler.

8. The building concrete preparation grit material screening machine of claim 1, wherein: gaps in the grid plates (39) are provided with grinding screens, and filter screens are arranged between the inner walls of the upper end and the lower end of the collecting tank (27).