CN219519514U - Slag powder screening device for special concrete production - Google Patents

Abstract

The utility model discloses a slag powder screening device for special concrete production, which relates to the field of concrete production devices and comprises a frame, a material collecting box erected on the frame and a vibration motor fixedly installed on the frame, wherein a material inlet is formed in the upper part of the material collecting box, a material outlet is formed in the lower part of the material collecting box, a plurality of layers of screens are connected in the material collecting box in a sliding manner from top to bottom, the aperture of each layer of screens is continuously reduced from top to bottom, a beating assembly for beating the screens up and down and driving the screens to slide up and down is correspondingly arranged below each layer of screens, the beating assembly is installed on the material collecting box, and the output end of the beating assembly is propped against the screens; according to the slag powder screening device, the frame, the vibration motor, the collecting box, the screen and the beating assembly are matched, so that the movement amplitude of the screen relative to the collecting box can be effectively increased, slag with relatively large grain size clamped in meshes of the screen is beaten and vibrated out of the screen, and the material screening efficiency of the screening device on slag powder is improved.

Description

Slag powder screening device for special concrete production

Technical Field

The utility model relates to the field of concrete production devices, in particular to a slag powder screening device for special concrete production.

Background

Special concrete refers to cement concrete with special purposes, which is made of novel materials, industrial waste or by a novel process, such as: lightweight aggregate concrete (lightweight concrete, lightweight aggregate concrete), fiber reinforced concrete (FRC for short), polymer concrete, and the like. Among them, the industrial solid waste materials currently applied to special concrete mainly include the following types: 1. preparing concrete with sound insulation, heat insulation, shock absorption and crack resistance by taking waste rubber tires as one of the aggregates; 2. preparing anti-cracking and anti-folding concrete by adopting various waste plastic fibers, polyester fibers, steel fibers and the like; 3. preparing lightweight concrete by using pumice powder, tuff powder, fly ash ceramsite, gangue powder, slag and the like; 4. etc.

At present, in the process of preparing light concrete by adopting slag powder, in order to ensure the production quality of the produced light concrete, the slag powder needs to be screened before being added so as to obtain slag powder which has quite fineness and accords with quite activity indexes. The common slag powder screening plant for concrete production generally comprises a frame, a material collecting box erected on the frame and a vibration motor fixedly mounted on the frame, wherein a material inlet is formed in the upper portion of the material collecting box, a material outlet is formed in the lower portion of the material collecting box, a plurality of screens are detachably mounted in the material collecting box, the vibration motor is located below the material collecting box, the output end of the vibration motor is abutted against the bottom of the material collecting box, and a damping spring used for supporting the material collecting box and buffering the material collecting box is further mounted between the frame and the material collecting box. When slag is screened by the slag powder screening device in the related art, the vibrating motor drives the material collecting box to drive the screen therein to vibrate continuously, so that slag powder solids with larger grain sizes are intercepted above the screen, and slag powder with grain sizes smaller than the mesh hole diameter of the screen can fall to the bottom of the material collecting box and be discharged from the discharge hole of the material collecting box.

In the process of screening the slag powder in the aggregate box, as the actual particle sizes of the ground slag powder are different, the slag powder is generally dumped and fed in a mode of dumping the whole vehicle or conveying the slag powder in a large quantity by a conveying belt, and the position change of the screen relative to the aggregate box is relatively small when the screen is vibrated along with the aggregate box, slag powder in the actual screening process is easy to clamp into the screen mesh due to slag with relatively large particle sizes in the slag powder, so that the material clamping is caused, and the material screening efficiency of the slag powder is affected.

Disclosure of Invention

The utility model provides a slag powder screening device for special concrete production, which aims to improve the material screening efficiency of slag powder in the light concrete production process.

The utility model provides a slag powder screening device for special concrete production, which adopts the following technical scheme:

the utility model provides a special concrete production is with slag powder screening plant, includes the frame, erects collection workbin and fixed mounting in the frame, its feed inlet has been seted up on collection workbin upper portion, its discharge gate has been seted up to the lower part, top-down sliding connection has multilayer screen cloth in the collection workbin, and the multilayer the aperture of screen cloth is constantly reduced from top to bottom, every layer the screen cloth below all corresponds and is equipped with and is used for beating the screen cloth from top to bottom and drives the mesh cloth up and down reciprocal gliding and beat the subassembly, beat the subassembly and install on collection workbin, just beat the output and the screen cloth looks butt of subassembly.

By adopting the technical scheme, as operators topple over the slag powder from the feed inlet of the material collecting box and feed the slag powder into the material collecting box in a way of dumping the whole car or conveying the slag powder in a large quantity by a conveying belt, the operators can drive the material collecting box to drive the screen to vibrate up and down by controlling the vibration motor on one hand, and the slag powder is screened; on the other hand, the beating component is controlled to constantly beat the screen mesh up and down and drive the screen mesh to slide up and down in a reciprocating manner, so that the screen mesh generates larger-amplitude relative motion relative to the aggregate box on the basis of vibrating along with the aggregate box, slag with larger grain size clamped into the mesh of the screen mesh is beaten and vibrated out of the mesh of the screen mesh, and the material screening efficiency of the screening device on slag powder is improved.

Optionally, hit and hit the subassembly and include the pivot, fixed mounting in pivot hit and hit the piece and be used for driving the pivot and revolute the axis of pivot and carry out pivoted driving motor, driving motor fixed mounting is on collecting the case, the pivot is perpendicular with arbitrary lateral wall of collecting the case, hit and hit a piece axis and be parallel with the pivot, just hit and hit the distance between a outward flange and the pivot and evenly increase/reduce around the pivot.

Through adopting above-mentioned technical scheme, start control motor and control motor's running power, can be comparatively convenient order about the pivot to rotate and control the rotation frequency of pivot to order about beating the piece to beat about beating the screen cloth comparatively conveniently, and to beating the piece to beating the frequency of beating of screen cloth and control, so that effectively will block the slag that the particle diameter in the screen cloth mesh is great relatively and beat and shake out the screen cloth mesh.

Optionally, a plurality of beating pieces on each rotating shaft are correspondingly arranged, the beating pieces are consistent in specification, and the beating pieces are distributed at equal intervals along the axis of the rotating shaft.

Through adopting above-mentioned technical scheme, hit and hit the area of contact of piece and screen cloth and increase, rotate along with the pivot, hit the piece and can more evenly, effectively apply force to the screen cloth, hit the slags of card income screen cloth mesh, shake out the screen cloth.

Optionally, the straight-line spout has been seted up along the depth direction of collection case on the collection case lateral wall, screen cloth border outside is fixed and the protrusion is equipped with the slider, the slider is along spout extending direction sliding connection in the spout.

Through adopting above-mentioned technical scheme, spout and slider cooperate, can restrict the direction of motion of screen cloth in the case that gathers materials for the clearance between screen cloth and the case that gathers materials keeps unchangeable as far as possible, thereby makes the slag powder be difficult for directly dropping to the case bottom that gathers materials from the clearance between screen cloth and the case that gathers materials in the up-and-down motion in-process of screen cloth, influences the relative particle diameter of the slag powder that finally sieves the gained.

Optionally, the bearing seat that inwards fixes and the protrusion is used for supporting the screen cloth on the case lateral wall gathers materials, install elastic component and supporting shoe on the bearing seat, the flexible direction of elastic component is unanimous with the case depth direction that gathers materials, just elastic component lower extreme fixed connection is on the bearing seat, upper end fixed connection is on the supporting shoe, the screen cloth can dismantle and place on the supporting shoe.

Through adopting above-mentioned technical scheme, elastic component, supporting shoe and bearing piece cooperate, can prescribe a limit to the mounted position of screen cloth on the one hand, on the other hand, can cushion the screen cloth at the in-process of screen cloth activity from top to bottom, prolongs screening plant's life.

Optionally, the collection case is the opening setting with one of them side wall that the pivot paralleled, just the collection case articulates in this opening part has the side door, the articulated axis of side door parallels with the pivot, just be equipped with between collection case and the side door and be used for being fixed in the retaining member on the collection case with the side door locking, the screen cloth passes through this opening swing joint in collection incasement.

Through adopting above-mentioned technical scheme, after screening plant uses a period, operating personnel can control the retaining member, opens the case side door that gathers materials, takes out the screen cloth from the case that gathers materials, will be intercepted the great particulate matter of particle diameter on the screen cloth and pour out the collection case.

Optionally, the thickness at the edge of the screen is continuously reduced from outside to inside, and the lower surface of the screen is a plane.

By adopting the technical scheme, the materials falling to the edge of the screen mesh conveniently slide along the inclined direction of the edge of the screen mesh and are gathered to the inner side of the screen mesh, so that the slag powder can be effectively screened.

Optionally, the size of the striking member located above the collection box is larger than the size of the striking member located below the collection box.

Through adopting above-mentioned technical scheme, the motion trail of beating piece edge above the collection box is wider than the motion trail of beating piece edge below the collection box, is favorable to adapting to the direction that the material falls better, carries out effective screening to the material.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. through the cooperation of the frame, the vibration motor, the material collecting box, the screen and the beating component, the movement amplitude of the screen relative to the material collecting box can be effectively increased, slag with relatively larger grain size clamped into meshes of the screen is beaten and vibrated out of the screen, and the material screening efficiency of the screening device on slag powder is improved;

2. the supporting seat, the elastic piece and the supporting block are matched, so that the screen 4 can be buffered in the process of up-and-down movement of the screen, and the service life of the screening device is prolonged;

3. through spout and slider cooperation, can ensure as far as possible that the clearance between screen cloth and the case inside wall that gathers materials is in less value all the time to make the last slag powder that sieves obtain be in less particle diameter range all the time, ensure the screening quality of slag powder.

Drawings

FIG. 1 is a schematic overall structure of an embodiment of the present utility model;

fig. 2 is a schematic partial structure view of an embodiment of the present utility model for showing the internal structure of the header tank.

Reference numerals: 1. a frame; 2. a material collecting box; 21. a support bracket; 22. an elastic member; 23. a support block; 24. a chute; 25. a side door; 26. a locking member; 3. a vibration motor; 4. a screen; 5. a striking assembly; 51. a rotating shaft; 52. a striking member; 53. and driving the motor.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-2.

The embodiment of the utility model discloses a slag powder screening device for special concrete production, and relates to the field of concrete production devices.

Referring to fig. 1, a slag powder screening device for special concrete production comprises a frame 1, a material collecting box 2 erected on the frame 1 and a vibration motor 3 fixedly installed on the frame 1, wherein the frame 1 is suitable for being placed on a horizontal plane, the material collecting box 2 is a box body with a rectangular opening, a material inlet is formed in the upper part of the material collecting box 2, a material outlet is formed in the lower part of the material collecting box, the bottom wall of the material collecting box 2 is obliquely arranged from top to bottom along the long side direction of the material collecting box, and the material outlet of the material collecting box 2 is positioned at the bottom of a wide side wall connected with the lowest position of the bottom wall of the material collecting box; in order to improve the material screening efficiency of slag powder in the lightweight concrete production process, referring to fig. 1 and 2, a plurality of layers of screens 4 are slidably connected from top to bottom in the aggregate box 2 between a feed inlet and a discharge outlet of the aggregate box, meshes of the plurality of layers of screens 4 are continuously reduced from top to bottom, and a beating assembly 5 for beating the screens 4 up and down and driving the screens 4 to slide up and down is correspondingly arranged below each layer of screens 4.

Specifically, the screens 4 are rectangular, the screens 4 in each aggregate box 2 can be two layers, three layers or more than three layers, and the number of the screens 4 can be adaptively changed according to the grinding thickness of the slag powder; the specification of screen cloth 4 and the open-ended size looks adaptation of collection material case 2, and the side of screen cloth 4 is suitable for the inside wall looks butt that corresponds with collection material case 2, and screen cloth 4 lower surface is the plane, and the thickness of screen cloth 4 edge constantly reduces from outside to inside to the material that drops to screen cloth 4 edge can be comparatively smooth and easy along the incline direction landing of screen cloth 4 edge, gather to screen cloth 4 inboard.

The side walls of the two sides corresponding to the wide edge of the material collecting box 2 are internally fixed and are convexly provided with bearing seats 21 for supporting the screen 4, and the bearing seats 21 are provided with elastic pieces 22 and supporting blocks 23; in the embodiment of the utility model, the elastic member 22 is preferably a spring, the expansion direction of the elastic member 22 is consistent with the depth direction of the material collecting box 2, an expansion rod for further guiding the expansion direction of the spring is coaxially arranged in the spring, the expansion rod is perpendicular to the upper surface of the bearing seat 21, the lower ends of the elastic member 22 and the expansion rod are fixedly connected to the bearing seat 21, the upper ends of the elastic member 22 and the expansion rod are fixedly connected to the supporting block 23, and the screen 4 is detachably arranged on the supporting block 23.

Referring to fig. 2, the striking assembly 5 includes a rotating shaft 51, a striking member 52 fixedly mounted on the rotating shaft 51, and a driving motor 53 for driving the rotating shaft 51 to rotate around the axis of the rotating shaft 51.

The length direction of the rotating shafts 51 is parallel to the width direction of the collecting box 2, two rotating shafts 51 in each group of striking assemblies 5 are correspondingly arranged, the two rotating shafts 51 are positioned at the same horizontal height, the driving motor 53 is fixedly arranged on any side wall corresponding to the long side of the collecting box 2, the output end of the driving motor 53 is coaxially fixed with one rotating shaft 51, and the two rotating shafts 51 are connected through a connecting belt.

The striking member 52 is vertically mounted on the rotating shaft 51, and the striking member 52 may be a cam, or may be formed by a plurality of rods with different lengths and vertically encircling the circumference of the rotating shaft 51, and the striking member 52 is preferably a cam in the embodiment of the present utility model, and the total minimum length of the striking member 52 after compression is between the minimum linear distance and the maximum linear distance between the outer edge of the striking member 52 and the rotating shaft 51; and a plurality of beating elements 52 are correspondingly arranged on each rotating shaft 51, the beating elements 52 have the same specification, and the beating elements 52 are distributed at equal intervals along the axis of the rotating shaft 51.

Along with the rotation of the rotating shaft 51 driven by the driving motor 53, the rotating shaft 51 can conveniently drive the striking piece 52 to continuously strike the screen 4, and drive the screen 4 to reciprocate up and down in the material collecting box 2; and the size of the beating piece 52 above the collecting box 2 is larger than that of the beating piece 52 below the collecting box 2, the movement track of the edge of the beating piece 52 above the collecting box 2 is wider than that of the edge of the beating piece 52 below the collecting box 2, and by controlling the operation power of the driving motor 53, an operator can conveniently control the rotation frequency of the rotating shaft 51, so that the beating frequency of the beating piece 52 to the screen 4 is conveniently controlled, and slag with relatively large grain size clamped into the meshes of the screen 4 can be effectively beaten and shaken out of the meshes of the screen 4.

Further, in order to keep the gap between the screen 4 and the inner side wall of the material collecting box 2 as unchanged as possible during the movement of the screen 4, referring to fig. 2, straight sliding grooves 24 are formed on two side walls corresponding to the wide edges of the material collecting box 2 along the depth direction of the material collecting box 2, sliding blocks are fixedly and convexly arranged on the outer side of the edge of the screen 4, and the sliding blocks are slidingly connected in the sliding grooves 24 along the extending direction of the sliding grooves 24; and the number of the sliding grooves 24 on each side wall of the material collecting box 2 is at least two, and the supporting seat 21, the elastic piece 22 and the supporting block 23 are positioned outside the sliding grooves 24 so as to effectively support the screen 4.

The sliding groove 24 is matched with the sliding block, so that the movement direction of the screen 4 in the aggregate box 2 can be limited, the gap between the screen 4 and the aggregate box 2 is kept as unchanged as possible, and accordingly slag powder is not easy to fall to the bottom of the aggregate box 2 directly from the gap between the screen 4 and the aggregate box 2 in the up-and-down movement process of the screen 4, and the relative particle size of the slag powder obtained through final screening is affected.

Further, the side wall of one side of the collecting box 2 parallel to the rotating shaft 51 is provided with an opening, the collecting box 2 is hinged with a side door 25 for opening and closing the opening at the opening, and the screen is movably connected in the collecting box 2 through the opening.

Specifically, referring to fig. 2, the upper part of the side door 25 is hinged at the opening of the collecting box 2, the hinge axis of the side door 25 is parallel to the rotating shaft 51, and a locking member 26 for locking and fixing the side door 25 on the collecting box 2 is arranged between the collecting box 2 and the side door 25; in the embodiment of the utility model, the locking piece 26 is a hanging type hook buckle, the locking piece 26 is composed of a lock catch and a lock seat, and the lock catch and the lock seat are respectively and fixedly arranged on the outer side wall of the long side of the collecting box 2 and the outer side wall of the side plate.

After the screening plant uses a period of time, operating personnel can comparatively conveniently open collection material case 2 side door 25 through opening and closing hasp and lock seat, take out screen cloth 4 from collection material case 2 in, will be intercepted the great granule material of particle diameter on screen cloth 4 and pour out collection material case 2, guarantee screening plant to the screening effect of slag powder.

The implementation principle of the slag powder screening device for special concrete production provided by the embodiment of the utility model is as follows: along with the mode that operating personnel adopted whole car to empty or conveyer belt to transfer in a large number with the slag powder by material collecting box 2 feed inlet topples over and the material loading to material collecting box 2, when controlling vibration motor 3 to order about material collecting box 2 to drive screen cloth 4 and shake from top to bottom, when sieving the slag powder, operating personnel can start driving motor 53, order about pivot 51 to drive the continuous rotation of corresponding beating piece 52, thereby constantly beat screen cloth 4 from top to bottom and order about screen cloth 4 to reciprocate and slide, make screen cloth 4 take place the relative motion of great range for material collecting box 2 on the basis of shaking along with material collecting box 2, thereby beat the slag of the particle diameter relatively big in the screen cloth 4 mesh that will block, shake out screen cloth 4 mesh, improve screening device to the material screening efficiency of slag powder.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (8)

1. The utility model provides a special concrete production is with slag powder screening plant, includes frame (1), erects case (2) and vibrating motor (3) of fixed mounting on frame (1) that gathers materials on frame (1), its feed inlet has been seted up on case (2) upper portion, its discharge gate has been seted up to the lower part, its characterized in that: the utility model discloses a material collecting box, including material collecting box (2), material collecting box (2), multilayer screen cloth (4) are connected with top-down in the top-down sliding, and the multilayer the aperture of screen cloth (4) is constantly reduced from top to bottom, every layer screen cloth (4) below all corresponds and is equipped with and is used for beating screen cloth (4) and drives screen cloth (4) reciprocal gliding beating subassembly (5) from top to bottom, beat subassembly (5) and install on material collecting box (2), just beat the output and the screen cloth (4) looks butt of subassembly (5).

2. The slag powder screening device for special concrete production according to claim 1, wherein: the beating assembly (5) comprises a rotating shaft (51), a beating piece (52) fixedly installed on the rotating shaft (51) and a driving motor (53) used for driving the rotating shaft (51) to rotate around the axis of the rotating shaft (51), the driving motor (53) is fixedly installed on the collecting box (2), the rotating shaft (51) is perpendicular to any side wall of the collecting box (2), the axis of the beating piece (52) is parallel to the rotating shaft (51), and the distance between the outer edge of the beating piece (52) and the rotating shaft (51) is uniformly increased/decreased around the rotating shaft (51).

3. The slag powder screening device for special concrete production according to claim 2, wherein: a plurality of beating pieces (52) on each rotating shaft (51) are correspondingly arranged, the beating pieces (52) are consistent in specification, and the beating pieces (52) are distributed at equal intervals along the axis of the rotating shaft (51).

4. The slag powder screening device for special concrete production according to claim 2, wherein: straight-line sliding grooves (24) are formed in the side wall of the material collecting box (2) along the depth direction of the material collecting box (2), sliding blocks are fixedly arranged on the outer side of the edge of the screen (4) in a protruding mode, and the sliding blocks are connected in the sliding grooves (24) in a sliding mode along the extending direction of the sliding grooves (24).

5. The slag powder screening device for special concrete production according to claim 2, wherein: the utility model discloses a screen cloth, including collection material case (2), support seat (21) that is used for supporting screen cloth (4) is fixed inwards and the protrusion on collection material case (2) lateral wall, install elastic component (22) and supporting shoe (23) on support seat (21), the flexible direction of elastic component (22) is unanimous with collection material case (2) depth direction, just elastic component (22) lower extreme fixed connection is on support seat (21), upper end fixed connection is on supporting shoe (23), screen cloth (4) can dismantle and place on supporting shoe (23).

6. The slag powder screening device for special concrete production according to claim 5, wherein: the utility model discloses a collection box, including collection box (2), pivot (51), wherein one side lateral wall that collection box (2) is parallel is the opening setting, just collection box (2) is articulated in this opening part has side door (25), the articulated axis of side door (25) is parallel with pivot (51), just be equipped with between collection box (2) and side door (25) and be used for locking retaining member (26) on being fixed in collection box (2) with side door (25), screen cloth (4) are through this opening swing joint in collection box (2).

7. A slag powder screening apparatus for use in the production of special concrete according to any one of claims 1 to 6, wherein: the thickness of the edge of the screen (4) is continuously reduced from outside to inside, and the lower surface of the screen (4) is a plane.

8. A slag powder screening apparatus for use in the production of special concrete according to any one of claims 2 to 6, wherein: the size of the striking piece (52) positioned above the collection box (2) is larger than the size of the striking piece (52) positioned below the collection box (2).